Ball valve automatic assembly equipment

Abstract

The invention discloses an automatic ball valve assembly device, comprising a frame, a turntable mechanism, and a placing station, a valve ball sealing ring assembly station, a valve stem sealing ring assembly station, a pressure cap assembly station, a valve stem assembly station, a pressure cap tightening station, a valve ball assembly station, a valve cover gluing station, a valve cover and valve body assembly station, a valve cover and valve body tightening station and a discharging station, which are sequentially distributed in a circumferential direction around the turntable mechanism; a plurality of supporting stations are circumferentially arranged on the turntable mechanism, and the placing station, the valve ball sealing ring assembly station, the valve stem sealing ring assembly station, the pressure cap assembly station, the valve stem assembly station, the pressure cap tightening station, the valve ball assembly station, the valve cover gluing station, the valve cover and valve body assembly station, the valve cover and valve body tightening station and the discharging station are respectively arranged corresponding to one of the supporting stations; the invention can improve the assembly efficiency of the ball valve, and can reduce the labor intensity of the staff and reduce the labor cost of the enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of ball valve assembly equipment, and in particular to automatic ball valve assembly equipment. Background Art

[0002] At present, in the production process of ball valves, the assembly of ball valves is completed manually, that is, the valve body, valve ball sealing ring, valve stem sealing ring, pressure cap, valve stem, valve ball and valve cover need to be assembled together manually. As a result, there are not only the disadvantages of low ball valve assembly efficiency, but also the disadvantages of high labor intensity of workers and high labor costs of enterprises. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides an automatic ball valve assembly device, which can improve the assembly efficiency of the ball valve, reduce the labor intensity of the staff and reduce the labor cost of the enterprise.

[0004] The ball valve automatic assembly equipment of the present invention comprises a frame, a turntable mechanism, and a placement station, a valve ball sealing ring assembly station, a valve stem sealing ring assembly station, a pressure cap assembly station, a valve stem assembly station, a pressure cap tightening station, a valve ball assembly station, a valve cover gluing station, a valve cover and valve body assembly station, a valve cover and valve body tightening station and a discharging station which are sequentially distributed in a circumferential direction around the turntable mechanism; the turntable mechanism, the valve ball sealing ring assembly station, the valve stem sealing ring assembly station, the pressure cap assembly station, the valve stem assembly station, the pressure cap tightening station, the valve ball assembly station, the valve cover gluing station, the valve cover and valve body assembly station, the valve cover and valve body tightening station and the discharging station are all installed on the frame; a plurality of supporting stations are circumferentially arranged on the turntable mechanism, and each supporting station includes a station for supporting the valve The valve body support seat of the body and the valve cover support seat for supporting the valve cover, the turntable mechanism includes a turntable, a turntable divider and a reduction motor, the turntable divider is fixed on the frame, the reduction motor is fixed to the turntable divider and the output shaft of the reduction motor is drivingly connected to the input shaft of the turntable divider, the turntable is fixed on the output shaft of the turntable divider, the valve body support seat in each supporting station is fixed on the turntable, and the valve cover support seat in each supporting station is rotatably connected to the turntable; the placement station, valve ball sealing ring assembly station, valve stem sealing ring assembly station, pressure cap assembly station, valve stem assembly station, pressure cap tightening station, valve ball assembly station, valve cover gluing station, valve cover and valve body assembly station, valve cover and valve body tightening station and discharge station are respectively arranged corresponding to one of the supporting stations.

[0005] The ball valve automatic assembly equipment of the present invention, wherein the valve ball sealing ring assembly station comprises a valve ball sealing ring vibration feeder, a valve ball sealing ring conveying track and a valve ball sealing ring assembly mechanism, the valve ball sealing ring vibration feeder, the valve ball sealing ring conveying track and the valve ball sealing ring assembly mechanism are all installed on a frame, and the discharge end of the valve ball sealing ring vibration feeder is connected to the feed end of the valve ball sealing ring conveying track, The valve ball sealing ring vibration feeder is used to convey the valve ball sealing rings located in the valve ball sealing ring vibration feeder to the valve ball sealing ring conveying track; the valve ball sealing ring conveying track is used to convey the valve ball sealing ring to the valve ball sealing ring assembly mechanism, and the valve ball sealing ring assembly mechanism is used to assemble the valve ball sealing ring from the valve ball sealing ring conveying track into the valve body and the valve cover; the valve ball sealing ring assembly mechanism includes a first bracket, two valve ball sealing ring assembly units and two valve ball sealing ring temporary storage units, the first bracket is fixed on the frame, the two valve ball sealing ring assembly units and the two valve ball sealing ring temporary storage units are installed on the first bracket, each valve ball sealing ring temporary storage unit is respectively located below one of the valve ball sealing ring assembly units, one of the valve ball sealing ring assembly units is used to assemble the valve ball sealing ring in the valve ball sealing ring temporary storage unit located at the corresponding position into the valve body, and the other valve ball sealing ring assembly unit is used to assemble the valve ball sealing ring in the valve ball sealing ring temporary storage unit located at the corresponding position The cam is an angular channel that is adapted to move the valve body in a direction of rotation from one end of the cam to the other end of the cam, wherein the cam is secured to the valve body with a key to enable the valve body to move relative to the control wheel. A sleeve, a slider, a first cylinder and a second cylinder, wherein the first cylinder and the second cylinder are both fixed on a first bracket, the slider is vertically slidably connected to the first bracket, the first plunger is movably arranged in the sleeve, the upper end of the first plunger is fixed to the piston rod of the first cylinder, the upper end of the sleeve is fixed to the slider, and the slider is fixed to the piston rod of the second cylinder; when the first plunger moves downward, the lower end of the first plunger is used to pass through the valve ball sealing ring located in one of the temporary storage areas and then be inserted into the valve body or the valve cover, and when the sleeve moves downward, the lower end of the sleeve is used to push the valve ball sealing ring located outside the first plunger and press the valve ball sealing ring into the valve body or the valve cover;After adopting this valve ball seal ring assembly station, the valve ball seal ring conveying track can feed the two valve ball seal ring temporary storage units, and the two valve ball seal ring assembly units can simultaneously assemble the valve ball seal rings in the valve ball seal ring temporary storage units at the corresponding positions into the valve body and the valve cover, that is, the valve body and the valve cover can be installed with the valve ball seal ring at the same time. In this way, When the lower ends of the two rotating arms in each valve ball sealing ring temporary storage unit are opened outward, the valve ball sealing ring in each temporary storage area can fall into the valve body and the valve cover respectively. Furthermore, when the piston rod of the first cylinder drives the first plug rod to move downward, the lower end of the first plug rod can pass through the valve ball sealing ring in the temporary storage area at the corresponding position and then be inserted into the valve body or the valve cover. When the piston rod of the second cylinder drives the slider to move downward so that the slider drives the sleeve to move When moving downward, the lower end of the sleeve can push the valve ball seal ring outside the first plug rod and press the valve ball seal ring into the valve body or valve cover; it should be noted that: after the lower ends of the two rotating arms in each valve ball seal ring temporary storage unit are moved inward, a channel for the lower end of the first plug rod to move through is formed between the lower ends of the two rotating arms in each valve ball seal ring temporary storage unit. The channel is a circular channel, and the inner diameter of the channel is larger than the outer diameter of the first plug rod and smaller than the outer diameters of the valve ball seal ring and the sleeve. After adopting this structure, when the first plug rod passes through the channel between the two rotating arms, the rotating arm can be prevented from rotating, thereby ensuring that the lower end of each first plug rod can reliably pass through the valve ball seal ring at the corresponding position and then be inserted into the valve body or valve cover. ;

[0006] The ball valve automatic assembly equipment of the present invention, wherein the valve stem sealing ring assembly station includes a second bracket, a valve stem sealing ring vibration feeder, a valve stem sealing ring conveying track and a valve stem sealing ring assembly mechanism, the second bracket is installed on the frame, the valve stem sealing ring vibration feeder and the valve stem sealing ring assembly mechanism are both installed on the second bracket, the upper end of the valve stem sealing ring conveying track is connected to the discharge end of the valve stem sealing ring vibration feeder, and the lower end of the valve stem sealing ring conveying track is fixed to the second bracket; the valve stem sealing ring vibration feeder is used to convey the valve stem sealing ring located in the valve stem sealing ring vibration feeder to the valve stem sealing ring conveying track; the valve stem sealing ring conveying track is used to convey the valve stem sealing ring to the valve stem sealing ring assembly mechanism, and the valve stem sealing ring assembly mechanism is used to assemble the valve stem sealing ring from the valve stem sealing ring conveying track into the valve stem mounting hole located on the valve body; the valve stem sealing ring assembly mechanism includes a valve stem sealing ring temporary storage unit and a valve stem sealing ring assembly The valve stem sealing ring temporary storage unit includes a third cylinder and a first temporary storage seat, and the valve stem sealing ring assembly unit includes a fourth cylinder, a fifth cylinder, a first sliding seat, a second plug rod and a top sleeve; the third cylinder is fixed on the second bracket, the first temporary storage seat is fixed to the driving end of the third cylinder, and a first temporary storage groove for temporarily storing the valve stem sealing ring is provided on the first temporary storage seat, and a first opening for the valve stem sealing ring from the valve stem sealing ring conveying track to fall into the first temporary storage groove is provided at the upper end of the first temporary storage groove, and the third cylinder is used to drive the first temporary storage seat to slide along the radial direction of the second plug rod. After the piston rod of the third cylinder is extended, the axis of the valve stem sealing ring located in the first temporary storage groove coincides with the axis of the second plug rod. After the piston rod of the third cylinder is contracted, The first opening is vertically aligned with the discharge end of the valve stem sealing ring conveying track; the fourth cylinder and the fifth cylinder are both fixed on the second bracket, the first sliding seat is slidably connected to the second bracket, the second plug rod is movably inserted in the top sleeve, one end of the second plug rod is fixed to the piston rod of the fourth cylinder, one end of the top sleeve is fixed to the first sliding seat, the first sliding seat is fixed to the piston rod of the fifth cylinder, the fourth cylinder is used to drive the second plug rod to move along the axial direction of the valve stem sealing ring located in the first temporary storage groove, and the fifth cylinder is used to drive the first sliding seat and the top sleeve to make the first sliding seat and the top sleeve move along the axial direction of the valve stem sealing ring located in the first temporary storage groove. The first temporary storage seat is provided with a first through hole connected with the first temporary storage groove. After the piston rod of the third cylinder is extended and when the piston rod of the fourth cylinder is extended, the first through hole and the valve stem sealing ring located in the first temporary storage groove are used for the second plug rod to pass through so that the valve stem sealing ring located in the first temporary storage groove is sleeved onto the outside of the second plug rod. The inner diameter of the first through hole is smaller than the outer diameter of the valve stem sealing ring. The side wall of the first temporary storage groove is provided with a second opening. After the piston rod of the fourth cylinder is extended and when the piston rod of the third cylinder is contracted, the second opening is used for the second plug rod and the valve stem sealing ring sleeved onto the outside of the second plug rod to slide out laterally to the outside of the first temporary storage seat.When the piston rod of the fifth cylinder is extended, the fifth cylinder is used to drive the first sliding seat and the top sleeve to move along the axial direction of the second plug rod so that the top sleeve presses the valve stem sealing ring located outside the second plug rod into the valve stem mounting hole located on the valve body; a first rotating frame is rotatably connected to the first temporary storage seat, one end of the first rotating frame is used to cover the second opening, and a second elastic structure is arranged between the other end of the first rotating frame and the first temporary storage seat, and the second elastic structure is used to drive the first rotating frame to rotate so that one end of the first rotating frame covers the second opening; the second elastic structure includes a second spring, one end of the second spring abuts against the first temporary storage seat, The other end of the second spring is abutted against the other end of the first rotating frame, and the other end of the first rotating frame is provided with a second blind hole for partially inserting the other end of the second spring; the upper end of the first temporary storage seat is provided with a first slide groove, the first slide groove extends along the sliding direction of the first temporary storage seat, and the first slide groove is used for partially embedding the valve stem sealing ring from the valve stem sealing ring conveying track, and one end of the first slide groove is connected with the first opening; after adopting this valve stem sealing ring assembly station, when the piston rod of the third cylinder is contracted, the first temporary storage groove located on the first temporary storage seat can be vertically aligned with the discharge end of the valve stem sealing ring conveying track. At this time, the valve stem sealing ring located in the valve stem sealing ring conveying track can fall into the first temporary storage groove through the first opening, and after the piston rod of the third cylinder is extended, and when the piston rod of the fourth cylinder is extended, the second insertion rod can pass through the position After the valve stem sealing ring in the first temporary storage groove is inserted into the valve stem mounting hole on the valve body, after the piston rod of the fourth cylinder is extended and when the piston rod of the third cylinder is contracted, the second plug rod and the valve stem sealing ring located in the first temporary storage groove can slide out laterally from the first temporary storage groove through the second opening, after the second plug rod and the valve stem sealing ring slide out laterally from the first temporary storage groove, one end of the first rotating frame can cover the second opening under the action of the elastic structure, when the piston rod of the fifth cylinder is extended, the fifth cylinder can drive the first sliding seat and the top sleeve to move along the axial direction of the second plug rod so that the top sleeve presses the valve stem sealing ring located outside the second plug rod into the valve stem mounting hole on the valve body. In addition, through the setting of the first slide groove, when the piston rod of the third cylinder is extended, the valve stem sealing ring from the valve stem sealing ring conveying track can fall into the first slide groove, When the piston rod of the third cylinder contracts, the valve stem sealing ring in the first slide groove can enter the first temporary storage groove through the first opening, so that the valve stem sealing ring from the valve stem sealing ring conveying track can be easily added to the first temporary storage groove. ;

[0007] The ball valve automatic assembly equipment of the present invention, wherein the pressure cap assembly station includes a third bracket, a pressure cap vibrating feeder, a pressure cap conveying track and a pressure cap assembly mechanism, the third bracket is installed on the frame, the pressure cap vibrating feeder and the pressure cap assembly mechanism are both installed on the third bracket, the upper end of the pressure cap conveying track is connected to the discharge end of the pressure cap vibrating feeder, and the lower end of the pressure cap conveying track is fixed to the third bracket; the pressure cap vibrating feeder is used to convey the pressure caps located in the pressure cap vibrating feeder to the pressure cap conveying track; the pressure cap conveying track is used to convey the pressure caps to the pressure cap assembly mechanism, and the pressure cap assembly mechanism is used to assemble the pressure caps from the pressure cap conveying track into the valve stem mounting holes located on the valve body; the pressure cap assembly mechanism includes a pressure cap temporary storage unit and a pressure cap assembly unit, the pressure cap temporary storage unit includes a sixth cylinder and a second temporary storage seat, the pressure cap assembly unit includes a seventh cylinder, an eighth cylinder, a first servo motor, a second sliding seat, a transmission box, a third insertion rod and a first rotating sleeve; the sixth cylinder is fixed on the third bracket, The second temporary storage seat is fixed to the driving end of the sixth cylinder, and a second temporary storage groove for temporarily storing the pressure cap is provided on the second temporary storage seat. A third opening for the pressure cap from the pressure cap conveying track to fall into the second temporary storage groove is provided at the upper end of the second temporary storage groove. The sixth cylinder is used to drive the second temporary storage seat to slide along the radial direction of the third insertion rod. After the piston rod of the sixth cylinder is extended, the axis of the pressure cap in the second temporary storage groove coincides with the axis of the third insertion rod. After the piston rod of the sixth cylinder is contracted, the third opening is vertically aligned with the discharge end of the pressure cap conveying track; the seventh cylinder and the eighth cylinder are both fixed on the third bracket, the second sliding seat is slidably connected to the third bracket, the first servo motor and the transmission box are both fixed on the second sliding seat, and one end of the first rotating sleeve is inserted into the It is arranged in the transmission box and is rotatably connected with the transmission box through the first bearing group. A hexagonal first sink groove for cooperating and plugging with the outer end of the pressure cap is arranged on the inner wall of the other end of the first rotating sleeve. The first rotating sleeve is transmission-connected with the rotating shaft of the first servo motor. The third plug rod is movably arranged in the first rotating sleeve. One end of the third plug rod is fixed to the piston rod of the seventh cylinder. The second sliding seat is fixed to the piston rod of the eighth cylinder. The seventh cylinder is used to drive the third plug rod to move along the axial direction of the pressure cap located in the second temporary storage groove. The eighth cylinder is used to drive the second sliding seat, the first servo motor, the transmission box and the first rotating sleeve to move the second sliding seat, the first servo motor, the transmission box and the first rotating sleeve along the axial direction of the pressure cap located in the second temporary storage groove. The second temporary storage seat is provided with a second through hole connected with the second temporary storage groove. After the piston rod of the sixth cylinder is extended and when the piston rod of the seventh cylinder is extended, the second through hole and the pressure cap located in the second temporary storage groove are used for the third insertion rod to pass through so that the pressure cap located in the second temporary storage groove is fitted onto the outside of the third insertion rod. The inner diameter of the second through hole is smaller than the outer diameter of the pressure cap.A fourth opening is provided on the side wall of the second temporary storage groove. After the piston rod of the seventh cylinder is extended and when the piston rod of the sixth cylinder is contracted, the fourth opening is used for the third plug rod and the pressure cap sleeved on the outside of the third plug rod to slide laterally out of the second temporary storage seat; when the piston rod of the eighth cylinder is extended, the eighth cylinder is used to drive the second sliding seat and the first rotating sleeve to move along the axial direction of the third plug rod so that the first rotating sleeve will press the pressure cap located on the outside of the third plug rod against the valve stem mounting hole located on the valve body; when the first servo motor drives the first rotating sleeve to rotate, the first rotating sleeve is used to screw the pressure cap into the valve stem mounting hole located on the valve body; a second rotating frame is rotatably connected to the second temporary storage seat, one end of the second rotating frame is used to cover the fourth opening, and an elastic structure is provided between the other end of the second rotating frame and the second temporary storage seat, and the elastic structure is used to drive the second rotating frame The frame rotates so that one end of the second rotating frame blocks the fourth opening; the elastic structure includes a third spring, one end of the third spring abuts against the second temporary storage seat, and the other end of the third spring abuts against the other end of the second rotating frame, and the other end of the second rotating frame is provided with a third blind hole for partially inserting the other end of the third spring; a first pulley, a second pulley and a transmission belt are provided in the transmission box, the first pulley is fixed to the rotating shaft of the first servo motor, the second pulley is sleeved on the outside of the first rotating sleeve and fixed to the first rotating sleeve, and the second pulley is connected to the first pulley through the transmission belt; a second slide groove is provided at the upper end of the second temporary storage seat, the second slide groove extends along the sliding direction of the second temporary storage seat, the second slide groove is used for partially embedding the pressure cap from the pressure cap conveying track, and one end of the second slide groove is connected with the third opening;After adopting this pressing cap assembly station, when the piston rod of the sixth cylinder is retracted, the second temporary storage groove located on the second temporary storage seat can be vertically aligned with the discharge end of the pressing cap conveying track. At this time, the pressing cap located in the pressing cap conveying track can fall into the second temporary storage groove through the third opening. After the piston rod of the sixth cylinder is extended, and when the piston rod of the seventh cylinder is extended, the third insertion rod can pass through the pressing cap located in the second temporary storage groove and then be inserted into the valve stem mounting hole on the valve body. After the piston rod of the seventh cylinder is extended and when the piston rod of the sixth cylinder is retracted, the third insertion rod and the pressing cap located in the second temporary storage groove can slide laterally out of the second temporary storage groove through the fourth opening. After the third insertion rod and the pressing cap slide laterally out of the second temporary storage groove, one end of the second rotating frame can cover the fourth opening under the action of the elastic structure. When the piston rod of the eighth cylinder is extended, the eighth cylinder can drive the second sliding seat and the first rotating sleeve to move along the axial direction of the third insertion rod to The first rotating sleeve presses the pressure cap located outside the third plug rod to the valve stem mounting hole located on the valve body. When the first servo motor drives the first rotating sleeve to rotate, the first recessed groove located on the inner wall of the other end of the first rotating sleeve can be plugged with the outer end of the pressure cap, and the first rotating sleeve can drive the pressure cap to rotate to pre-tighten the pressure cap into the valve stem mounting hole located on the valve body. In addition, through the setting of the second slide groove, when the piston rod of the sixth cylinder is extended, the pressure cap from the pressure cap conveying track can fall into the second slide groove. When the piston rod of the sixth cylinder is retracted, the pressure cap located in the second slide groove can enter the second temporary storage groove through the third opening. In this way, the pressure cap from the pressure cap conveying track can be conveniently added to the second temporary storage groove. It should be noted that the number of turns that the first servo motor drives the first rotating sleeve to rotate each time can be set in the controller of the ball valve automatic assembly equipment according to the number of turns required when the pressure cap and the valve body are pre-tightened. ;

[0008] The ball valve automatic assembly equipment of the present invention, wherein the valve stem assembly station includes a valve stem vibration loader and a valve stem assembly mechanism, the valve stem vibration loader and the valve stem assembly mechanism are both installed on a frame, the valve stem vibration loader is used to convey the valve stem to the valve stem assembly mechanism, and the valve stem assembly mechanism is used to assemble the valve stem from the valve stem vibration loader into the valve stem mounting hole located on the valve body; by adopting this valve stem assembly station, the valve stem can be conveniently assembled into the valve stem mounting hole located on the valve body, in addition, the valve stem vibration loader and the valve stem assembly mechanism in the valve stem assembly station are both prior arts, for example, the valve stem assembly mechanism can adopt the valve stem automatic assembly machine disclosed in Chinese Patent Publication No. CNA, so the present invention will not be described here in detail.

[0009] The ball valve automatic assembly equipment of the present invention, wherein the pressure cap tightening station includes a fourth bracket, and the fourth bracket is installed on the frame; a pressing structure and a locking structure are installed on the fourth bracket, the pressing structure is used to press the valve body located on the valve body support seat, and the locking structure is used to tighten the pressure cap pre-installed in the valve stem mounting hole on the valve body; the pressing structure includes a ninth cylinder, a third sliding seat and a pressing sleeve, the ninth cylinder is fixed on the fourth bracket, the third sliding seat is vertically slidably connected to the fourth bracket, the third sliding seat is fixed to the piston rod of the ninth cylinder, and the pressing sleeve is fixed on the third sliding seat, when the piston rod of the ninth cylinder is extended, the third sliding seat is used to drive the pressing sleeve to move downward so that the pressing sleeve is inserted into the valve body and presses the valve body; the pressing structure also includes a tenth cylinder and a first pressing rod, the tenth cylinder is fixed on the fourth bracket, The first pressure rod is movably arranged in the third sliding seat and the pressure sleeve, the upper end of the first pressure rod is fixed to the piston rod of the tenth cylinder, and a first limiting groove for engaging with the inner end of the valve stem installed in the valve stem mounting hole is provided on the outer wall of the lower end of the first pressure rod. When the piston rod of the tenth cylinder is extended, the lower end of the first pressure rod is used to insert into the valve body so that the first limiting groove on the outer wall of the first pressure rod is engaged with the inner end of the valve stem; the locking structure includes the eleventh cylinder, the fourth sliding seat, the second servo motor, the first rotating shaft and the second rotating sleeve, the eleventh cylinder is fixed to the fourth bracket, the fourth sliding seat is slidably connected to the fourth bracket, and the eleventh cylinder is used to drive the fourth sliding seat to make the fourth sliding seat move along the valve stem The mounting hole slides in the axial direction, one end of the first rotating shaft extends into the fourth sliding seat and is rotatably connected to the fourth sliding seat through the second bearing group, the second servo motor is fixed on the fourth sliding seat, one end of the first rotating shaft is transmission-connected to the rotating shaft of the second servo motor, one end of the second rotating sleeve is transmission-connected to the other end of the first rotating shaft, and a hexagonal second sink groove for mating with the outer end of the pressure cap pre-installed in the valve stem mounting hole is provided on the inner wall of the other end of the second rotating sleeve; one end of the second rotating sleeve is sleeved on the outside of the other end of the first rotating shaft, and a pair of third slide grooves are provided on the outer wall of the other end of the first rotating shaft, and each third slide groove extends along the axial direction of the first rotating shaft. A pair of first pins are embedded on the side wall of the second rotating sleeve, and the inner end portion of each first pin is inserted into one of the third sliding grooves and is slidably connected with the third sliding groove. A fourth spring is arranged inside the second rotating sleeve, and one end of the fourth spring abuts against the inner bottom of the second rotating sleeve, and the other end of the fourth spring abuts against the other end of the first rotating shaft. After adopting this pressure cap tightening station, when the piston rod of the ninth cylinder extends, the ninth cylinder can drive the third sliding seat to move downward, and when the third sliding seat moves downward, the third sliding seat can drive the pressure sleeve to move downward so that the pressure sleeve is inserted into the valve body and presses the valve body. After the valve body is pressed, when the locking structure tightens the pressure cap pre-installed on the valve body, it can prevent the valve body from jumping and displacing.By setting the tenth cylinder and the first pressure rod, when the piston rod of the tenth cylinder is extended, the lower end of the first pressure rod can be inserted into the valve body and the first limiting groove on the outer wall of the first pressure rod can be engaged with the inner end of the valve stem. In this way, when the locking structure tightens the pressure cap pre-installed on the valve body, it can avoid the valve stem installed in the valve stem mounting hole from rotating with the pressure cap, that is, it can avoid the valve stem from rotating relative to the valve body. By adopting this locking structure, when the piston rod of the eleventh cylinder is extended, the eleventh cylinder can drive the fourth sliding seat, the second servo motor, the first rotating shaft and the second rotating sleeve to move toward one side of the valve body. After the second rotating sleeve moves toward one side of the valve body, the second recessed groove on the inner wall of the other end of the second rotating sleeve can cooperate and plug with the outer end of the pressure cap pre-installed in the valve stem mounting hole. In this way, When the second servo motor drives the first rotating shaft and the second rotating sleeve to rotate, the second rotating sleeve can tighten the pressure cap pre-installed on the valve body. It should be noted that the number of turns that the second servo motor drives the second rotating sleeve to rotate each time can be set in the controller of the ball valve automatic assembly device according to the number of turns required when the pressure cap and the valve body are tightened, or it can be judged according to the torque value of the second servo motor received by the controller in the ball valve automatic assembly device. For example, when the torque value reaches the set value (when the pressure cap and the valve body are tightened), the second servo motor stops working. In addition, after adopting the above structure, the second rotating sleeve and the first rotating shaft can be elastically connected. In this way, when the second rotating sleeve tightens the pressure cap pre-installed in the valve stem mounting hole, the second rotating sleeve can always be in a state of abutment with the pressure cap, that is, the second rotating sleeve can reliably tighten the pressure cap. In addition, when the eleventh cylinder drives the fourth sliding seat to slide so that the second rotating sleeve abuts against the pressure cap pre-installed in the valve stem mounting hole, it can prevent the second rotating sleeve from damaging the pressure cap and the valve body. ;

[0010] The ball valve automatic assembly equipment of the present invention, wherein the valve ball assembly station comprises a fifth bracket, a valve ball vibration feeder, a valve ball conveying track, a valve ball temporary storage seat and a valve ball assembly mechanism, the fifth bracket, The valve ball vibration feeder and the valve ball conveying track are both installed on the frame, and the valve ball temporary storage seat and the valve ball assembly mechanism are both installed on the fifth bracket; a valve ball temporary storage groove is arranged on the valve ball temporary storage seat; one end of the valve ball conveying track is connected with the discharge end of the valve ball vibration feeder, and the other end of the valve ball conveying track is connected with the valve ball temporary storage seat, the valve ball conveying track is used to convey the valve ball from the valve ball vibration feeder to the valve ball temporary storage groove located on the valve ball temporary storage seat, and the valve ball assembly mechanism is used to assemble the valve ball located in the valve ball temporary storage groove into the valve body located on the valve body support seat; a limit strip is fixed on the inner bottom of the valve ball conveying track, the limit strip extends along the length direction of the valve ball conveying track, one end of the limit strip extends to the discharge end of the valve ball vibration feeder, and the other end of the limit strip extends to the valve ball temporary storage groove, the limit strip is used to engage with the second limit groove located on the outer wall of the valve ball, and after the valve ball falls into the valve ball temporary storage groove, The second limiting groove on the outer wall of the valve ball is engaged with the other end of the limiting strip; the valve ball assembly mechanism includes a twelfth cylinder, a thirteenth cylinder, a fifth sliding seat, a sixth sliding seat and a suction nozzle, the twelfth cylinder is fixed on the fifth bracket, the fifth sliding seat is horizontally slidably connected to the fifth bracket, the fifth sliding seat is fixed to the piston rod of the twelfth cylinder, the thirteenth cylinder is fixed to the fifth sliding seat, the sixth sliding seat is vertically slidably connected to the fifth sliding seat, the sixth sliding seat is fixed to the piston rod of the thirteenth cylinder, and the suction nozzle is fixed to the sixth sliding seat; after fixing the limiting strip on the inner bottom of the valve ball conveying track, The limiting strip can be engaged with the second limiting groove on the outer wall of the valve ball, so that when the valve ball is transported by the valve ball transport track, the valve ball can be positioned and limited. In addition, after the valve ball falls into the valve ball temporary storage groove through the valve ball transport track, the second limiting groove on the outer wall of the valve ball can be engaged with the other end of the limiting strip, so that the valve ball can be positioned and limited, and the direction of the valve ball after being installed in the valve body by the valve ball assembly mechanism can be determined; it should also be noted that: the outer wall of the valve ball itself is provided with a limiting groove, and when the valve ball is installed in the valve body, the limiting groove is used to be engaged with the end of the valve stem, so that the valve stem can drive the valve ball to rotate;Furthermore, after adopting the valve ball assembly mechanism, first, the piston rod of the thirteenth cylinder is retracted, the piston rod of the twelfth cylinder is extended, and the suction nozzle is moved to the top of the valve ball temporary storage groove. Then, the piston rod of the thirteenth cylinder is extended, and the suction nozzle located on the sixth sliding seat sucks the valve ball located in the valve ball temporary storage groove. Then, the piston rod of the thirteenth cylinder is retracted, and the valve ball located in the valve ball temporary storage groove is sucked up by the suction nozzle. Then, the piston rod of the twelfth cylinder is retracted, and the valve ball sucked up by the suction nozzle is moved to the top of the valve body. Then, the piston rod of the thirteenth cylinder is extended, and the valve ball sucked up by the suction nozzle is close to the valve body. Then, the suction nozzle releases the valve ball, and the valve ball falls into the valve body. Finally, the piston rod of the thirteenth cylinder is retracted, and the twelfth cylinder drives the suction nozzle to reset. ;

[0011] The ball valve automatic assembly equipment of the present invention, wherein the valve cover glue coating station includes a sixth bracket, a rotary drive structure and a glue coating structure, the sixth bracket is installed on the frame, and the rotary drive structure and the glue coating structure are both installed on the sixth bracket; the rotary drive structure is used to drive the valve cover support seat and the valve cover placed on the valve cover support seat to rotate, and when the valve cover rotates, the glue coating structure is used to apply glue to the threaded portion on the outer peripheral wall of the valve cover; the rotary drive structure includes a fourteenth cylinder, a seventh sliding seat and a third servo motor, the fourteenth cylinder is fixed on the sixth bracket, the seventh sliding seat is slidably connected to the sixth bracket, the seventh sliding seat is fixed to the piston rod of the fourteenth cylinder, the fourteenth cylinder is used to drive the seventh sliding seat to slide along the axial direction of the valve cover, and the third servo motor The machine is fixed on the seventh sliding seat, the rotating shaft of the third servo motor is fixed with an ejector pin, the lower end of the ejector pin is used to abut against the valve cover, and when the third servo motor drives the ejector pin to rotate, the ejector pin is used to drive the valve cover and the valve cover support seat to rotate; the glue coating structure includes a fifteenth cylinder and a dispensing valve, the fifteenth cylinder is fixed on the sixth bracket, the dispensing valve is fixed on the driving end of the fifteenth cylinder, the fifteenth cylinder is used to drive the dispensing valve to move along the radial direction of the valve cover, and the dispensing valve is used to apply glue on the threaded portion on the outer peripheral wall of the valve cover; the sixth bracket is fixed with a sixteenth cylinder, the piston rod of the sixteenth cylinder is fixed with a second pressure rod, the sixteenth cylinder is used to drive the second pressure rod to move along the axial direction of the valve body, and the second pressure rod is used to squeeze the valve ball pre-installed in the valve body; By adopting the above-mentioned rotation drive structure, when the piston rod of the fourteenth cylinder is extended, the fourteenth cylinder can drive the seventh sliding seat, the third servo motor and the ejector pin to move downward. At this time, the ejector pin can abut against the valve cover located on the valve cover support seat. When the third servo motor drives the ejector pin to rotate, the ejector pin can drive the valve cover and the valve cover support seat used to support the valve cover to rotate. After the third servo motor drives the valve cover to rotate one circle (gluing is completed), the third servo motor stops rotating, and the piston rod of the fourteenth cylinder contracts to drive the seventh sliding seat, the third servo motor and the ejector pin to move up and reset. By adopting the above-mentioned glue coating structure, when the piston rod of the fifteenth cylinder is extended, the glue outlet of the glue dispensing valve can be close to the valve cover. The threaded portion on the valve cover can apply glue circumferentially to the threaded portion of the valve cover during the glue dispensing process of the glue dispensing valve and when the valve cover rotates. After the glue coating is completed (after the glue is circumferentially coated on the threaded portion of the valve cover), the piston rod of the fifteenth cylinder contracts to drive the glue dispensing valve to move and reset; through the arrangement of the sixteenth cylinder and the second pressure rod, when the piston rod of the sixteenth cylinder is extended, the second pressure rod can squeeze the valve ball pre-installed in the valve body, so that the valve ball can be installed in place, and because the second pressure rod can squeeze the valve ball pre-installed in the valve body during the process of the glue coating structure coating the valve cover with glue, the two processes can be carried out simultaneously, thereby improving the production efficiency of the ball valve.

[0012] The ball valve automatic assembly equipment of the present invention, wherein the valve cover and valve body assembly station includes a seventh bracket, a valve cover pick-up and placement structure and a valve cover pre-tightening structure, the seventh bracket is installed on the frame, and the valve cover pick-up and placement structure and the valve cover pre-tightening structure are both installed on the seventh bracket; the valve cover pick-up and placement structure is used to grab the valve cover and place the valve cover on the valve body, and the valve cover pre-tightening structure is used to pre-tighten the valve cover located on the valve body onto the valve body; the valve cover pick-up and placement structure includes an eighth sliding seat, a seventeenth cylinder, a rotating cylinder and a clamping claw cylinder, the seventeenth cylinder is fixed on the seventh bracket, and the eighth sliding seat is vertically slidably connected to the seventh The eighth sliding seat is fixed to the piston rod of the seventeenth cylinder, the rotating cylinder is fixed to the eighth sliding seat, and the clamping cylinder is fixed to the driving end of the rotating cylinder; the valve cover pre-tightening structure includes a ninth sliding seat, an eighteenth cylinder, a fourth servo motor, a third rotating sleeve and a first rotating rod, the eighteenth cylinder is fixed to the seventh bracket, the ninth sliding seat is vertically slidably connected to the seventh bracket, the ninth sliding seat is fixed to the piston rod of the eighteenth cylinder, the fourth servo motor is fixed to the ninth sliding seat, one end of the third rotating sleeve is inserted into the ninth sliding seat and rotates with the ninth sliding seat through the third bearing group The third rotating sleeve is connected, one end of the third rotating sleeve is transmission-connected to the rotating shaft of the fourth servo motor, the other end of the third rotating sleeve is transmission-connected to one end of the first rotating rod, and a third regular hexagonal groove for engaging with the outer end of the valve cover is provided on the inner wall of the other end of the first rotating rod; a slot for inserting one end of the first rotating rod is provided at the other end of the third rotating sleeve, and a fourth sliding groove extending along the axial direction of the first rotating rod is provided on the outer wall of the first rotating rod, and a second pin shaft extending along the radial direction of the third rotating sleeve is embedded in the third rotating sleeve, and the inner end of the second pin shaft is inserted into the fourth sliding groove and is slidably connected with the fourth slide slot, a fifth spring is arranged in the slot, one end of the fifth spring abuts against the inner bottom of the slot, and the other end of the fifth spring abuts against one end of the first rotating rod; the valve cover and valve body tightening station comprises a column and a valve cover tightening structure, the column is mounted on the frame, and the valve cover tightening structure is mounted on the column; the valve cover tightening structure is used to tighten the valve cover pre-installed on the valve body; the valve cover tightening structure comprises a tenth sliding seat, a nineteenth cylinder, a fifth servo motor, a second rotating rod and a fourth rotating sleeve, the nineteenth cylinder is fixed on the column, and the tenth sliding seat is vertically slidably connected to the column, The tenth sliding seat is fixed to the piston rod of the nineteenth cylinder, the fifth servo motor is fixed to the tenth sliding seat, one end of the second rotating rod is inserted into the tenth sliding seat and is rotatably connected to the tenth sliding seat through the fourth bearing group, one end of the second rotating rod is transmission-connected to the rotating shaft of the fifth servo motor, the other end of the second rotating rod is transmission-connected to one end of the fourth rotating sleeve, and the inner wall of the other end of the fourth rotating sleeve is provided with a fourth hexagonal sink groove for engaging with the outer end of the valve cover;The other end of the second rotating rod is inserted into the fourth rotating sleeve, and a pair of fifth sliding grooves are provided on the outer wall of the second rotating rod, and each fifth sliding groove extends along the axial direction of the second rotating rod, and a pair of third pins are embedded on the side wall of the fourth rotating sleeve, and each third pin extends along the radial direction of the fourth rotating sleeve, and the inner end portion of each third pin is inserted into one of the fifth sliding grooves and is slidably connected to the fifth sliding groove, and a sixth spring is sleeved on the outer side of the second rotating rod, and the two ends of the sixth spring are respectively abutted against the second rotating rod and the fourth rotating sleeve; after adopting this valve cover picking and placing structure, when it is necessary to place the valve cover located on the valve cover support seat on the valve body located on the valve body support seat, first, the piston rod of the seventeenth cylinder is contracted to make the clamping cylinder close to the valve cover located on the valve cover support seat, then, the clamping cylinder clamps the valve cover located on the valve cover support seat, and then the piston rod of the seventeenth cylinder is extended, and at the same time, The rotating cylinder drives the clamping cylinder to rotate so that the valve cover on the clamping cylinder is flipped over to the top of the valve body on the valve body support seat, and then the piston rod of the seventeenth cylinder contracts and the clamping cylinder releases the valve cover. At this time, the valve cover is placed on the valve body on the valve body support seat, and finally, the piston rod of the seventeenth cylinder extends. At the same time, the rotating cylinder drives the clamping cylinder to rotate and reset; after adopting the above-mentioned valve cover pre-tightening structure, when it is necessary to tighten the valve cover on the valve body, first, the eighteenth cylinder drives the ninth sliding seat, the fourth servo motor, the third rotating sleeve and the first rotating rod to move downward. After the first rotating rod moves downward, the third sink groove on the inner wall at the other end of the first rotating rod can be engaged with the outer end of the valve cover, and then the fourth servo motor drives the third rotating sleeve and the first rotating rod to rotate and reset. The movable rod rotates, and when the first rotating rod rotates, the valve cover can be pre-tightened onto the valve body, and then the fourth servo motor stops rotating. Finally, the eighteenth cylinder drives the ninth sliding seat, the fourth servo motor, the third rotating sleeve and the first rotating rod to move up and reset. It should be noted that the number of turns that the fourth servo motor drives the first rotating rod to rotate each time can be set in the controller of the ball valve automatic assembly equipment according to the number of turns required for pre-tightening the valve cover and the valve body. Furthermore, after adopting the above structure, an elastic connection can be achieved between the first rotating rod and the third rotating sleeve. In this way, in the process of the first rotating rod pre-tightening the valve cover onto the valve body, the first rotating rod can always be in a state of abutment with the valve cover, that is, the first rotating rod can reliably pre-tighten the valve cover and the valve body. In addition, when the eighteenth cylinder drives the ninth sliding seat to slide so that the first rotating rod abuts against the valve cover located on the valve body, it can prevent the first rotating rod from damaging the valve cover and the valve body.After adopting the above-mentioned valve cover tightening structure, when it is necessary to tighten the valve cover on the valve body, first, the nineteenth cylinder drives the tenth sliding seat, the fifth servo motor, the second rotating rod and the fourth rotating sleeve to move downward. After the fourth rotating sleeve moves downward, the fourth sink groove on the inner wall of the other end of the fourth rotating sleeve can be engaged with the outer end of the valve cover. Then, the fifth servo motor drives the second rotating rod and the fourth rotating sleeve to rotate. When the fourth rotating sleeve rotates, the valve cover can be tightened to the valve body, and then the fifth servo motor stops rotating. Finally, the nineteenth cylinder drives the tenth sliding seat, the fifth servo motor, the second rotating rod and the fourth rotating sleeve to move upward and reset. It should be noted that the number of turns that the fifth servo motor drives the fourth rotating sleeve to rotate each time can be determined according to the torque value of the fifth servo motor received by the controller in the ball valve automatic assembly equipment. For example, when the torque value reaches the set value (when the valve cover and the valve body are pre-tightened), the fifth servo motor stops working. In addition, after adopting the above-mentioned structure, the fourth rotating sleeve and the second rotating rod can be elastically connected. In this way, in the process of the fourth rotating sleeve tightening the valve cover to the valve body, The fourth rotating sleeve can always be in abutment with the valve cover, that is, the fourth rotating sleeve can reliably tighten the valve cover and the valve body. In addition, when the nineteenth cylinder drives the tenth sliding seat to slide so that the fourth rotating sleeve abuts against the valve cover on the valve body, the fourth rotating sleeve can be prevented from damaging the valve cover and the valve body.

[0013] The ball valve automatic assembly equipment of the present invention, wherein the discharging station includes a manipulator mechanism and a conveyor belt mechanism, both of which are installed on a frame, and the manipulator mechanism is used to grab the assembled ball valve located on the turntable mechanism and place the assembled ball valve on the conveyor belt mechanism; a plurality of support columns evenly distributed in the circumferential direction are fixed on the frame below the turntable, and the upper end of each support column is rotatably connected to a roller, the axis of each roller is perpendicular to the axis of the turntable, and the upper end of each roller abuts against the lower end surface of the turntable; after adopting the above-mentioned discharging station, When the assembled ball valve is rotated to the unloading station, the manipulator mechanism can grab the assembled ball valve located on the valve body support seat and place the assembled ball valve on the conveyor belt mechanism, and the conveyor belt mechanism can transport the assembled ball valve away, that is, the above-mentioned unloading station realizes the automatic unloading function of the ball valve. In addition, the above-mentioned manipulator mechanism and conveyor belt mechanism are both existing commonly used mechanical structures on the market, so they are not described here in detail; through the arrangement of support columns and rollers, under the action of the support columns and rollers, the rollers can achieve reliable support for the turntable to avoid the turntable from tilting, thereby improving the reliability and stability of the turntable during rotation.

[0014] The present invention assembles the valve body, valve ball sealing ring, valve stem sealing ring, pressure cap, valve stem, valve ball and valve cover together in a mechanized manner. Compared with the traditional method of manually assembling the valve body, valve ball sealing ring, valve stem sealing ring, pressure cap, valve stem, valve ball and valve cover together, the present invention can improve the assembly efficiency of the ball valve, reduce the labor intensity of the staff and reduce the labor cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 It is a third three-dimensional structural schematic diagram of the present invention;

[0019] Figure 4 is a fourth three-dimensional structural schematic diagram of the present invention;

[0020] Figure 5 for Figure 1 The schematic diagram of the structure after the enlargement of A in the middle;

[0021] Figure 6 for Figure 4 The schematic diagram of the structure after enlargement at B in the middle;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure after the valve ball seal ring assembly station is installed on the frame;

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the valve ball sealing ring assembly mechanism;

[0024] Fig. 9 for Figure 7 The schematic diagram of the structure after enlargement at C in the middle;

[0025] Fig.10 for Figure 8 The schematic diagram of the structure after the enlargement of D in the middle;

[0026] Fig.11 This is a schematic diagram of the three-dimensional structure of the valve stem sealing ring assembly station after it is installed on the frame;

[0027] Fig.12 It is the first three-dimensional structural schematic diagram of the valve stem seal assembly station;

[0028] Fig.13 for Fig.11 The schematic diagram of the structure after enlargement at E in the middle;

[0029] Fig.14 for Fig.12 The enlarged structural diagram at F in the middle;

[0030] Fig.15 It is a second three-dimensional structural schematic diagram of the valve stem sealing ring assembly station;

[0031] Fig.16 This is a schematic diagram of the three-dimensional structure after the pressure cap assembly station is installed on the frame;

[0032] Fig.17 It is the first three-dimensional structural schematic diagram of the pressing cap assembly station;

[0033] Fig.18 for Fig.16 The schematic diagram of the structure after enlarging at G in the middle;

[0034] Fig.19 for Fig.17 The schematic diagram of the structure after enlarging at H in the middle;

[0035] Fig. 20 It is a second three-dimensional structural schematic diagram of the pressing cap assembly station;

[0036] Fig.21 The third three-dimensional structural diagram of the press cap assembly station;

[0037] Fig. 22 It is a fourth three-dimensional structural schematic diagram of the pressing cap assembly station;

[0038] Fig.23 This is a schematic diagram of the three-dimensional structure after the pressure cap tightening station is installed on the frame;

[0039] Fig.24 It is a three-dimensional structural schematic diagram of the press cap tightening station;

[0040] Fig.25 It is a schematic cross-sectional view of the locking structure in the tightening station of the pressure cap;

[0041] Fig.26 for Fig.23 The schematic diagram of the structure after the enlargement of I in the middle;

[0042] Fig. 27 for Fig.24 The schematic diagram of the structure after the enlargement of J in the middle;

[0043] Fig.28 for Fig.25 The schematic diagram of the structure after enlarging at K in the middle;

[0044] Fig.29 This is the first three-dimensional structural diagram after the valve ball assembly station is installed on the frame;

[0045] Fig.30 for Fig.29 The schematic diagram of the structure after enlarging at L in the middle;

[0046] Fig.31 for Fig.29 The schematic diagram of the structure after the M in the middle is enlarged;

[0047] Fig.32 It is a second three-dimensional structural schematic diagram after the valve ball assembly station is installed on the frame;

[0048] Fig.33 Schematic diagram of the three-dimensional structure of the valve ball;

[0049] Fig.34 This is a schematic diagram of the three-dimensional structure of the valve cover gluing station after it is installed on the frame;

[0050] Fig.35 for Fig.34 The schematic diagram of the structure after enlarging at N in the middle;

[0051] Fig.36 It is a three-dimensional structural diagram of the valve cover gluing station;

[0052] Fig.37 It is a three-dimensional structural diagram of the valve cover and valve body assembly station after being installed on the frame;

[0053] Fig.38 for Fig.37 The schematic diagram of the structure after the enlargement of O in the middle;

[0054] Fig.39 It is a three-dimensional structural schematic diagram of the valve cover and valve body assembly station;

[0055] Fig.40 It is a cross-sectional structural schematic diagram of a valve cover pre-tightening structure in a valve cover and valve body assembly station;

[0056] Fig.41 This is a schematic diagram of the three-dimensional structure after the valve cover and valve body tightening station are installed on the frame;

[0057] Fig.42 for Fig.41 The schematic diagram of the structure after the enlargement of P in the middle;

[0058] Fig.43 It is a three-dimensional structural schematic diagram of the valve cover and valve body tightening station;

[0059] Fig.44 It is a schematic cross-sectional view of the valve cover tightening structure in the valve cover and valve body tightening station. DETAILED DESCRIPTION

[0060] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0061] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0062] The ball valve automatic assembly equipment of the present invention comprises a frame 1, a turntable mechanism 11, and a placement station, a valve ball sealing ring assembly station 2, a valve stem sealing ring assembly station 3, a pressure cap assembly station 4, a valve stem assembly station 5, a pressure cap tightening station 6, a valve ball assembly station 7, a valve cover glue coating station 8, a valve cover and valve body assembly station 9, a valve cover and valve body tightening station 10 and a discharging station 20 which are sequentially distributed in a circumferential direction around the turntable mechanism 11; the turntable mechanism 11, the valve ball sealing ring assembly station 2, the valve stem sealing ring assembly station 3, the pressure cap assembly station 4, the valve stem assembly station 5, the pressure cap tightening station 6, the valve ball assembly station 7, the valve cover glue coating station 8, the valve cover and valve body assembly station 9, the valve cover and valve body tightening station 10 and the discharging station 20 are installed on the frame 1; a plurality of supporting stations 12 are arranged circumferentially on the turntable mechanism 11, each supporting station 12 includes a valve body supporting seat 121 for supporting the valve body 301 and a valve cover supporting seat 122 for supporting the valve cover 302, the turntable mechanism 11 includes a turntable 111, a turntable divider 112 and a reduction motor 113, the turntable divider 112 is fixed on the frame 1, the reduction motor 113 is fixed to the turntable divider 112 and the output shaft of the reduction motor 113 is drivingly connected to the input shaft of the turntable divider 112, the turntable 111 is fixed on the output shaft of the turntable divider 112, and each supporting station 12 includes a valve body supporting seat 121 for supporting the valve body 301 and a valve cover supporting seat 122 for supporting the valve cover 302, the turntable mechanism 11 includes a turntable 111, a turntable divider 112 and a reduction motor 113, the turntable divider 112 is fixed to the frame 1, the reduction motor 113 is fixed to the turntable divider 112 and the output shaft of the reduction motor 113 is drivingly connected to the input shaft of the turntable divider 112, the turntable 111 is fixed on the output shaft of the turntable divider 112, and each supporting station 12 The valve body support seats 121 are all fixed on the turntable 111, and the valve cover support seats 122 in each supporting station 12 are rotatably connected to the turntable 111; the placement station, valve ball sealing ring assembly station 2, valve stem sealing ring assembly station 3, pressure cap assembly station 4, valve stem assembly station 5, pressure cap tightening station 6, valve ball assembly station 7, valve cover gluing station 8, valve cover and valve body assembly station 9, valve cover and valve body tightening station 10 and discharge station 20 are respectively arranged corresponding to one of the supporting stations 12.

[0063] The valve ball seal ring assembly station 2 includes a valve ball seal ring vibration feeder 21, a valve ball seal ring conveying track 22 and a valve ball seal ring assembly mechanism 23. The valve ball seal ring vibration feeder 21, the valve ball seal ring conveying track 22 and the valve ball seal ring assembly mechanism 23 are all installed on the frame 1. The discharge end of the valve ball seal ring vibration feeder 21 is connected to the feed end of the valve ball seal ring conveying track 22. The valve ball seal ring vibration feeder 21 is used to convey the valve ball seal ring 303 located in the valve ball seal ring vibration feeder 21 to the valve ball seal ring conveying track 22; the valve ball seal ring conveying track 22 is used to convey the valve ball seal ring 303 to the valve ball seal ring assembly mechanism 23. The valve ball seal ring assembly mechanism 23 The valve ball seal ring 303 from the valve ball seal ring conveying track 22 is assembled into the valve body 301 and the valve cover 302; the valve ball seal ring assembly mechanism 23 includes a first bracket 231, two valve ball seal ring assembly units and two valve ball seal ring temporary storage units, the first bracket 231 is fixed on the frame 1, the two valve ball seal ring assembly units and the two valve ball seal ring temporary storage units are installed on the first bracket 231, and each valve ball seal ring temporary storage unit is respectively located below one of the valve ball seal ring assembly units. One of the valve ball sealing ring assembly units is used to assemble the valve ball sealing ring 303 in the valve ball sealing ring temporary storage unit located at the corresponding position into the valve body 301, and the other valve ball sealing ring assembly unit is used to assemble the valve ball sealing ring 303 in the valve ball sealing ring temporary storage unit located at the corresponding position into the valve cover 302, and the valve ball sealing ring conveying track 22 is used to convey the valve ball sealing ring 303 to the two valve ball sealing ring temporary storage units; each valve ball sealing ring temporary storage unit includes two rotating arms 232, and the two rotating arms 232 in each valve ball sealing ring temporary storage unit are rotatably connected to the first bracket 231, and the lower ends of the two rotating arms 232 in each valve ball sealing ring temporary storage unit are moved inward to form A temporary storage area 233 for temporarily storing the valve ball sealing ring 303 from the valve ball sealing ring conveying track 22, a first elastic structure is provided between each rotating arm 232 and the first bracket 231, and each first elastic structure is used to drive the rotating arm 232 at the corresponding position to make the lower end of the rotating arm 232 rotate inward; each first elastic structure includes a first spring 234, one end of each first spring 234 abuts against the upper end of the rotating arm 232 at the corresponding position, and the other end of each first spring 234 abuts against the first bracket 231, and a first blind hole 2321 for inserting one end portion of the first spring 234 at the corresponding position is provided on the inner wall of the upper end of each rotating arm 232;Each sealing ring assembly unit includes a first plug rod 235, a sleeve 236, a slider 237, a first cylinder 238 and a second cylinder 239. The first cylinder 238 and the second cylinder 239 are both fixed to the first bracket 231. The slider 237 is vertically slidably connected to the first bracket 231. The first plug rod 235 is movably arranged in the sleeve 236. The upper end of the first plug rod 235 is fixed to the piston rod of the first cylinder 238. The upper end of the sleeve 236 is fixed to the slider 237. The slider 237 is fixed to the piston rod of the second cylinder 239; when the first plug rod 235 moves downward, the lower end of the first plug rod 235 is used to pass through the valve ball seal ring 303 located in one of the temporary storage areas 233 and then inserted into the valve body 301 or the valve cover 302; when the sleeve 236 moves downward, the lower end of the sleeve 236 is used to push the valve ball seal ring 303 located outside the first plug rod 235 and press the valve ball seal ring 303 into the valve body 301 or the valve cover 302; after adopting this valve ball seal ring assembly station, the valve ball seal ring conveying track can feed the two valve ball seal ring temporary storage units, and the two valve ball seal ring assembly units can simultaneously The valve ball sealing rings in the valve ball sealing ring temporary storage units at the corresponding positions are assembled into the valve body and the valve cover, that is, the valve body and the valve cover can be installed with the valve ball sealing rings at the same time. In this way, the efficiency of installing the valve ball sealing rings on the valve body and the valve cover can be improved. Secondly, when the lower ends of the two rotating arms in each valve ball sealing ring temporary storage unit are moved inward, a valve ball sealing ring for temporarily storing the valve ball sealing ring from the valve ball sealing ring conveying track can be formed between the lower ends of the two rotating arms in each valve ball sealing ring temporary storage unit. When the lower ends of the two rotating arms in each valve ball sealing ring temporary storage unit are opened outward, the valve ball sealing rings in each temporary storage area can fall into the valve body and the valve cover respectively. Furthermore, when the piston rod of the first cylinder drives the first plunger to move downward, the lower end of the first plunger can pass through the valve ball seal ring in the temporary storage area at the corresponding position and then be inserted into the valve body or the valve cover. When the piston rod of the second cylinder drives the slider to move downward so that the slider drives the sleeve to move downward, the lower end of the sleeve can push the valve ball seal ring located outside the first plunger and press the valve ball seal ring into the valve body or the valve cover. It should be noted that: after the lower ends of the two rotating arms in each valve ball seal ring temporary storage unit move inward, a channel for the lower end of the first plunger to move through is formed between the lower ends of the two rotating arms in each valve ball seal ring temporary storage unit. The channel is a circular channel, and the inner diameter of the channel is larger than the outer diameter of the first plunger and smaller than the outer diameters of the valve ball seal ring and the sleeve. After adopting this structure, when the first plunger passes through the channel between the two rotating arms, the rotating arm can be prevented from rotating, thereby ensuring that the lower end of each first plunger can reliably pass through the valve ball seal ring at the corresponding position and then be inserted into the valve body or the valve cover. ;

[0064] The valve stem sealing ring assembly station 3 includes a second bracket 31, a valve stem sealing ring vibration feeder 32, a valve stem sealing ring conveying track 33 and a valve stem sealing ring assembly mechanism 34. The second bracket 31 is installed on the frame 1, and the valve stem sealing ring vibration feeder 32 and the valve stem sealing ring assembly mechanism 34 are both installed on the second bracket 31. The upper end of the valve stem sealing ring conveying track 33 is connected to the discharge end of the valve stem sealing ring vibration feeder 32, and the lower end of the valve stem sealing ring conveying track 33 is fixed to the second bracket 31; the valve stem sealing ring vibration feeder 32 is used to convey the valve stem sealing ring 304 located in the valve stem sealing ring vibration feeder 32 to the valve stem sealing ring conveying track 33; the valve stem sealing ring conveying track 33 is used to convey the valve stem sealing ring 304 to the valve stem sealing ring assembly mechanism 34, and the valve stem sealing ring assembly mechanism 34 It is used to assemble the valve stem sealing ring 304 from the valve stem sealing ring conveying track 33 into the valve stem mounting hole 3011 located on the valve body 301; the valve stem sealing ring assembly mechanism 34 includes a valve stem sealing ring temporary storage unit and a valve stem sealing ring assembly unit, the valve stem sealing ring temporary storage unit includes a third cylinder 341 and a first temporary storage seat 342, and the valve stem sealing ring assembly unit includes a fourth cylinder 343, a fifth cylinder 344, a first sliding seat 345, a second plug rod 346 and a top sleeve 347; the third cylinder 341 is fixed on the second bracket 31 The first temporary storage seat 342 is fixed to the driving end of the third cylinder 341, and a first temporary storage groove 3421 for temporarily storing the valve stem sealing ring 304 is provided on the first temporary storage seat 342. The upper end of the first temporary storage groove 3421 is provided with a first opening 3422 for the valve stem sealing ring 304 from the valve stem sealing ring conveying track 33 to fall into the first temporary storage groove 3421. The third cylinder 341 is used to drive the first temporary storage seat 342 to slide along the radial direction of the second plug rod 346. After the piston rod of the third cylinder 341 is extended, the axis of the valve stem seal ring 304 located in the first temporary storage groove 3421 coincides with the axis of the second plug rod 346. After the piston rod of the third cylinder 341 is retracted, the first opening 3422 is vertically aligned with the discharge end of the valve stem seal ring conveying track 33. The fourth cylinder 343 and the fifth cylinder 344 are both fixed on the second bracket 31, the first sliding seat 345 is slidably connected to the second bracket 31, and the second plug rod 346 is movably inserted into the top sleeve 347. In the embodiment, one end of the second plug rod 346 is fixed to the piston rod of the fourth cylinder 343, one end of the top sleeve 347 is fixed to the first sliding seat 345, the first sliding seat 345 is fixed to the piston rod of the fifth cylinder 344, the fourth cylinder 343 is used to drive the second plug rod 346 to move along the axial direction of the valve stem sealing ring 304 located in the first temporary storage groove 3421, and the fifth cylinder 344 is used to drive the first sliding seat 345 and the top sleeve 347 to move the first sliding seat 345 and the top sleeve 347 along the axial direction of the valve stem sealing ring 304 located in the first temporary storage groove 3421;The first temporary storage seat 342 is provided with a first through hole 3423 which is connected to the first temporary storage groove 3421. After the piston rod of the third cylinder 341 is extended and when the piston rod of the fourth cylinder 343 is extended, the first through hole 3423 and the valve stem sealing ring 304 located in the first temporary storage groove 3421 are used for the second plug rod 346 to pass through so that the valve stem sealing ring 304 located in the first temporary storage groove 3421 is sleeved onto the outside of the second plug rod 346. The inner diameter of the first through hole 3423 is smaller than the outer diameter of the valve stem sealing ring 304. The side wall of the first temporary storage groove 3421 is provided with a second opening 3424. After the piston rod of the fourth cylinder 343 is extended and when the piston rod of the third cylinder 341 is retracted, the second opening 3424 is used for the second plug rod 346 and the valve stem sealing ring 304 sleeved onto the outside of the second plug rod 346 to slide out laterally to the first temporary storage seat 342. When the piston rod of the fifth cylinder 344 is extended, the fifth cylinder 344 is used to drive the first sliding seat 345 and the top sleeve 347 to move along the axial direction of the second plug rod 346 so that the top sleeve 347 presses the valve stem sealing ring 304 located outside the second plug rod 346 into the valve stem mounting hole 3011 located on the valve body 301; the first temporary storage seat 342 is rotatably connected to the first rotating frame 348, one end of the first rotating frame 348 is used to block the second opening 3424, and a second elastic structure is provided between the other end of the first rotating frame 348 and the first temporary storage seat 342, and the second elastic structure is used to drive the first rotating frame 348 to rotate so that one end of the first rotating frame 348 blocks the second opening 3424; the second elastic structure includes a second spring 349, one end of the second spring 349 abuts against the first temporary storage seat 342, and the second spring 349 The other end is against the other end of the first rotating frame 348, and the other end of the first rotating frame 348 is provided with a second blind hole 3481 for partially inserting the other end of the second spring 349; the upper end of the first temporary storage seat 342 is provided with a first slide groove 3245, the first slide groove 3245 extends along the sliding direction of the first temporary storage seat 342, and the first slide groove 3245 is used for partially inserting the valve stem sealing ring 304 from the valve stem sealing ring conveying track 33, and one end of the first slide groove 3245 is connected with the first opening 3422;After adopting this valve stem sealing ring assembly station, when the piston rod of the third cylinder contracts, the first temporary storage groove located on the first temporary storage seat can be vertically aligned with the discharge end of the valve stem sealing ring conveying track. At this time, the valve stem sealing ring located in the valve stem sealing ring conveying track can fall into the first temporary storage groove through the first opening. After the piston rod of the third cylinder is extended and when the piston rod of the fourth cylinder is extended, the second plug rod can pass through the valve stem sealing ring located in the first temporary storage groove and then be inserted into the valve stem mounting hole on the valve body. After the piston rod of the fourth cylinder is extended and when the piston rod of the third cylinder is contracted, the second plug rod and the valve stem sealing ring located in the first temporary storage groove can slide out of the first temporary storage groove laterally through the second opening. After sliding out of the storage groove laterally, one end of the first rotating frame can cover the second opening under the action of the elastic structure. When the piston rod of the fifth cylinder is extended, the fifth cylinder can drive the first sliding seat and the top sleeve to move along the axial direction of the second plug rod so that the top sleeve presses the valve stem sealing ring located outside the second plug rod into the valve stem mounting hole located on the valve body. In addition, through the setting of the first slide groove, when the piston rod of the third cylinder is extended, the valve stem sealing ring from the valve stem sealing ring conveying track can fall into the first slide groove. When the piston rod of the third cylinder is retracted, the valve stem sealing ring located in the first slide groove can enter the first temporary storage groove through the first opening. In this way, the valve stem sealing ring from the valve stem sealing ring conveying track can be conveniently added to the first temporary storage groove. ;

[0065] The cap assembly station 4 includes a third bracket 41, a cap vibration loader 42, a cap conveying track 43 and a cap assembly mechanism 44. The third bracket 41 is installed on the frame 1. The cap vibration loader 42 and the cap assembly mechanism 44 are both installed on the third bracket 41. The upper end of the cap conveying track 43 is connected to the discharge end of the cap vibration loader 42, and the lower end of the cap conveying track 43 is fixed to the third bracket 41; the cap vibration loader 42 is used to convey the cap 305 located in the cap vibration loader 42 to the cap conveying track 43; the cap conveying track 43 is used to convey the cap 305 to the cap assembly mechanism 44, and the cap assembly mechanism 44 is used to assemble the cap 305 from the cap conveying track 43 into the valve stem mounting hole 3011 located on the valve body 301; the cap assembly mechanism 44 includes a cap temporary storage unit and a cap assembly unit, and the cap temporary storage unit includes a sixth cylinder 441 and a second temporary storage seat 442. The pressing cap assembly unit includes a seventh cylinder 443, an eighth cylinder 444, a first servo motor 445, a second sliding seat 446, a transmission box 447, a third plug rod 448 and a first rotating sleeve 449; the sixth cylinder 441 is fixed on the third bracket 41, the second temporary storage seat 442 is fixed to the driving end of the sixth cylinder 441, and the second temporary storage seat 442 is provided with a second temporary storage groove 4421 for temporarily storing the pressing cap 305, and the upper end of the second temporary storage groove 4421 is provided with a third opening 4422 for allowing the pressing cap 305 from the pressing cap conveying track 43 to fall into the second temporary storage groove 4421. The sixth cylinder 441 is used to drive the second temporary storage seat 442 to slide along the radial direction of the third plug rod 448. After the piston rod of the sixth cylinder 441 is extended, the axis of the pressing cap 305 located in the second temporary storage groove 4421 coincides with the axis of the third plug rod 448, and the sixth cylinder 441 After the piston rod is retracted, the third opening 4422 is vertically aligned with the discharge end of the pressing cap conveying track 43;The seventh cylinder 443 and the eighth cylinder 444 are both fixed on the third bracket 41, the second sliding seat 446 is slidably connected to the third bracket 41, the first servo motor 445 and the transmission box 447 are both fixed on the second sliding seat 446, one end of the first rotating sleeve 449 is inserted into the transmission box 447 and is rotatably connected to the transmission box 447 through the first bearing group 4491, and the inner wall of the other end of the first rotating sleeve 449 is provided with a hexagonal plug for mating with the outer end of the pressure cap 305. The first sink groove 4492 is shaped, the first rotating sleeve 449 is connected to the rotating shaft of the first servo motor 445, the third plug rod 448 is movably arranged in the first rotating sleeve 449, one end of the third plug rod 448 is fixed to the piston rod of the seventh cylinder 443, the second sliding seat 446 is fixed to the piston rod of the eighth cylinder 444, the seventh cylinder 443 is used to drive the third plug rod 448 to move along the axial direction of the pressure cap 305 located in the second temporary storage groove 4421, and the eighth cylinder 444 The second temporary storage seat 442 is provided with a second through hole 4423 which is connected with the second temporary storage groove 4421. After the piston rod of the sixth cylinder 441 is extended, and when the piston rod of the seventh cylinder 443 is extended, the second through hole 4423 and the pressure cap 305 located in the second temporary storage groove 4421 are used for the third insertion rod 448 to pass through so that the pressure cap 305 located in the second temporary storage groove 4421 is sleeved onto the outside of the third insertion rod 448. The inner diameter of the second through hole 4423 is smaller than that of the pressure cap 305. The outer diameter of the second temporary storage groove 4421 is provided with a fourth opening 4424 on the side wall. After the piston rod of the seventh cylinder 443 is extended and when the piston rod of the sixth cylinder 441 is contracted, the fourth opening 4424 is used for allowing the third plug rod 448 and the pressure cap 305 sleeved on the outside of the third plug rod 448 to slide out laterally to the outside of the second temporary storage seat 442; when the piston rod of the eighth cylinder 444 is extended, the eighth cylinder 444 is used to drive the second sliding seat 446 and the first rotating sleeve 449 to move along the axial direction of the third plug rod 448 so that the first rotating sleeve 449 presses the pressure cap 305 located on the outside of the third plug rod 448 to the valve stem mounting hole 3011 located on the valve body 301; when the first servo motor 445 drives the first rotating sleeve 449 to rotate, the first rotating sleeve 449 is used to screw the pressure cap 305 into the valve stem mounting hole 3011 located on the valve body 301;The second temporary storage seat 442 is rotatably connected to a second rotating frame 4425, one end of the second rotating frame 4425 is used to block the fourth opening 4424, and an elastic structure is provided between the other end of the second rotating frame 4425 and the second temporary storage seat 442, and the elastic structure is used to drive the second rotating frame 4425 to rotate so that one end of the second rotating frame 4425 blocks the fourth opening 4424; the elastic structure includes a third spring 4426, one end of the third spring 4426 abuts against the second temporary storage seat 442, the other end of the third spring 4426 abuts against the other end of the second rotating frame 4425, and the other end of the second rotating frame 4425 is provided with a third blind hole 4427 for partially inserting the other end of the third spring 4426; the transmission box 447 is provided with a first pulley 4471, a second pulley 4472 and a transmission belt 4473, the first pulley 4471 is fixed to the rotating shaft of the first servo motor 445, and the second pulley 4472 is fixed to the rotating shaft of the first servo motor 445. The second pulley 4472 is connected to the first pulley 4471 through a transmission belt 4473. The second temporary storage seat 442 is provided with a second slide groove 4428 at the upper end thereof. The second slide groove 4428 extends along the sliding direction of the second temporary storage seat 442. The second slide groove 4428 is used for partially embedding the pressing cap 305 from the pressing cap conveying track 43. One end of the second slide groove 4428 is connected to the third opening 4422.After adopting this pressing cap assembly station, when the piston rod of the sixth cylinder is retracted, the second temporary storage groove located on the second temporary storage seat can be vertically aligned with the discharge end of the pressing cap conveying track. At this time, the pressing cap located in the pressing cap conveying track can fall into the second temporary storage groove through the third opening. After the piston rod of the sixth cylinder is extended, and when the piston rod of the seventh cylinder is extended, the third insertion rod can pass through the pressing cap located in the second temporary storage groove and then be inserted into the valve stem mounting hole on the valve body. After the piston rod of the seventh cylinder is extended and when the piston rod of the sixth cylinder is retracted, the third insertion rod and the pressing cap located in the second temporary storage groove can slide laterally out of the second temporary storage groove through the fourth opening. After the third insertion rod and the pressing cap slide laterally out of the second temporary storage groove, one end of the second rotating frame can cover the fourth opening under the action of the elastic structure. When the piston rod of the eighth cylinder is extended, the eighth cylinder can drive the second sliding seat and the first rotating sleeve to move along the axial direction of the third insertion rod to The first rotating sleeve presses the pressure cap located outside the third plug rod to the valve stem mounting hole located on the valve body. When the first servo motor drives the first rotating sleeve to rotate, the first recessed groove located on the inner wall of the other end of the first rotating sleeve can be plugged with the outer end of the pressure cap, and the first rotating sleeve can drive the pressure cap to rotate to pre-tighten the pressure cap into the valve stem mounting hole located on the valve body. In addition, through the setting of the second slide groove, when the piston rod of the sixth cylinder is extended, the pressure cap from the pressure cap conveying track can fall into the second slide groove. When the piston rod of the sixth cylinder is retracted, the pressure cap located in the second slide groove can enter the second temporary storage groove through the third opening. In this way, the pressure cap from the pressure cap conveying track can be conveniently added to the second temporary storage groove. It should be noted that the number of turns that the first servo motor drives the first rotating sleeve to rotate each time can be set in the controller of the ball valve automatic assembly equipment according to the number of turns required when the pressure cap and the valve body are pre-tightened. ;

[0066] The valve stem assembly station 5 includes a valve stem vibration loader 51 and a valve stem assembly mechanism 52, both of which are installed on the frame 1, and the valve stem vibration loader 51 is used to convey valve stems to the valve stem assembly mechanism 52, and the valve stem assembly mechanism 52 is used to assemble the valve stems from the valve stem vibration loader 51 into the valve stem mounting hole 3011 located on the valve body 301; by adopting this valve stem assembly station, the valve stem can be conveniently assembled into the valve stem mounting hole located on the valve body. In addition, the valve stem vibration loader and the valve stem assembly mechanism in the valve stem assembly station are both prior art. For example, the valve stem assembly mechanism can adopt the valve stem automatic assembly machine disclosed in Chinese Patent Publication No. CN103737278A, so the present invention will not be described here in detail.

[0067] The pressing cap tightening station 6 includes a fourth bracket 61, which is installed on the frame 1; a pressing structure and a locking structure are installed on the fourth bracket 61, the pressing structure is used to press the valve body 301 located on the valve body support seat 121, and the locking structure is used to tighten the pressing cap 305 pre-installed in the valve stem mounting hole 3011 on the valve body 301; the pressing structure includes a ninth cylinder 621, a third sliding seat 622 and a pressing sleeve 623, the ninth cylinder 621 is fixed on the fourth bracket 61, the third sliding seat 622 is vertically slidably connected to the fourth bracket 61, the third sliding seat 622 is fixed to the piston rod of the ninth cylinder 621, the pressing sleeve 623 is fixed on the third sliding seat 622, and when the piston rod of the ninth cylinder 621 is extended, the third sliding seat 622 Used to drive the pressing sleeve 623 to move downward so that the pressing sleeve 623 is inserted into the valve body 301 and presses the valve body 301; the pressing structure also includes a tenth cylinder 624 and a first pressing rod 625, the tenth cylinder 624 is fixed on the fourth bracket 61, the first pressing rod 625 is movably arranged in the third sliding seat 622 and the pressing sleeve 623, the upper end of the first pressing rod 625 is fixed to the piston rod of the tenth cylinder 624, and the outer wall of the lower end of the first pressing rod 625 is provided with a first limiting groove 6251 for engaging with the inner end of the valve stem installed in the valve stem mounting hole 3011. When the piston rod of the tenth cylinder 624 is extended, the lower end of the first pressing rod 625 is used to be inserted into the valve body 301 so that the first limiting groove 6251 located on the outer wall of the first pressing rod 625 is engaged with the inner end of the valve stem; the locking structure includes an eleventh cylinder 631, a fourth sliding seat 632, a second servo motor 633, The first rotating shaft 634 and the second rotating sleeve 635, the eleventh cylinder 631 are fixed on the fourth bracket 61, the fourth sliding seat 632 is slidably connected to the fourth bracket 61, the eleventh cylinder 631 is used to drive the fourth sliding seat 632 to make the fourth sliding seat 632 slide along the axial direction of the valve stem mounting hole 3011, one end of the first rotating shaft 634 extends into the fourth sliding seat 632 and is rotatably connected to the fourth sliding seat 632 through the second bearing group 6432, the second servo motor 633 is fixed on the fourth sliding seat 632, one end of the first rotating shaft 634 is transmission-connected to the rotating shaft of the second servo motor 633, one end of the second rotating sleeve 635 is transmission-connected to the other end of the first rotating shaft 634, and the inner wall of the other end of the second rotating sleeve 635 is provided with a hexagonal second sink groove 6351 for mating and plugging with the outer end of the pressure cap pre-installed in the valve stem mounting hole 3011;One end of the second rotating sleeve 635 is sleeved on the outside of the other end of the first rotating shaft 634, and a pair of third sliding grooves 6341 are provided on the outer wall of the other end of the first rotating shaft 634, and each third sliding groove 6341 extends along the axial direction of the first rotating shaft 634. A pair of first pins 636 are embedded on the side wall of the second rotating sleeve 635, and the inner end of each first pin 636 is inserted into one of the third sliding grooves 6341 and is slidably connected with the third sliding groove 6341. A fourth spring 637 is provided inside the second rotating sleeve 635, and one end of the fourth spring 637 abuts against the inner bottom of the second rotating sleeve 635, and the other end of the fourth spring 637 abuts against the other end of the first rotating shaft 634; after adopting this pressure cap tightening station, when the piston rod of the ninth cylinder is extended, the ninth cylinder can drive the third sliding seat to move downward, and when the third sliding seat moves downward, the third sliding seat can drive the pressing sleeve to move downward So that the pressing sleeve is inserted into the valve body and presses the valve body. After the valve body is pressed, when the locking structure tightens the pressing cap pre-installed on the valve body, it can avoid the valve body from jumping and displacing. Through the arrangement of the tenth cylinder and the first pressing rod, when the piston rod of the tenth cylinder is extended, the lower end of the first pressing rod can be inserted into the valve body and the first limiting groove on the outer wall of the first pressing rod can be engaged with the inner end of the valve stem. In this way, when the locking structure tightens the pressing cap pre-installed on the valve body, it can avoid the valve stem installed in the valve stem mounting hole from rotating with the pressing cap, that is, it can avoid the valve stem from rotating relative to the valve body.By adopting this locking structure, when the piston rod of the eleventh cylinder extends, the eleventh cylinder can drive the fourth sliding seat, the second servo motor, the first rotating shaft and the second rotating sleeve to move toward one side of the valve body. After the second rotating sleeve moves toward one side of the valve body, the second recessed groove on the inner wall at the other end of the second rotating sleeve can be plugged into the outer end of the pressure cap pre-installed in the valve stem mounting hole. In this way, when the second servo motor drives the first rotating shaft and the second rotating sleeve to rotate, the second rotating sleeve can tighten the pressure cap pre-installed on the valve body. It should be noted that the number of turns that the second servo motor drives the second rotating sleeve to rotate each time can be set in the controller of the ball valve automatic assembly equipment according to the number of turns required when the pressure cap and the valve body are tightened. , or it can be judged according to the torque value of the second servo motor received by the controller in the ball valve automatic assembly equipment. For example, when the torque value reaches the set value (when the pressure cap and the valve body are tightened), the second servo motor stops working. In addition, by adopting the above structure, the second rotating sleeve and the first rotating shaft can be elastically connected. In this way, when the second rotating sleeve tightens the pressure cap pre-installed in the valve stem mounting hole, the second rotating sleeve can always be in a state of abutment with the pressure cap, that is, the second rotating sleeve can reliably tighten the pressure cap. In addition, when the eleventh cylinder drives the fourth sliding seat to slide so that the second rotating sleeve abuts against the pressure cap pre-installed in the valve stem mounting hole, the second rotating sleeve can be prevented from damaging the pressure cap and the valve body. ;

[0068] The valve ball assembly station 7 includes a fifth bracket 71, a valve ball vibration feeder 72, a valve ball conveying track 73, a valve ball temporary storage seat 74 and a valve ball assembly mechanism. The fifth bracket 71, the valve ball vibration feeder 72 and the valve ball conveying track 73 are all installed on the frame 1, and the valve ball temporary storage seat 74 and the valve ball assembly mechanism are all installed on the fifth bracket 71; the valve ball temporary storage seat 74 is provided with a valve ball temporary storage groove 741; one end of the valve ball conveying track 73 is connected to the discharge end of the valve ball vibration feeder 72, and the other end of the valve ball conveying track 73 is connected to the valve ball temporary storage seat 74. The valve ball conveying track 73 is used to transfer the valve ball from the valve ball vibration feeder 72 The valve ball 306 is transported to the valve ball temporary storage groove 741 located on the valve ball temporary storage seat 74, and the valve ball assembly mechanism is used to assemble the valve ball 306 located in the valve ball temporary storage groove 741 into the valve body 301 located on the valve body support seat 121; a limit strip 731 is fixed on the inner bottom of the valve ball conveying track 73, and the limit strip 731 extends along the length direction of the valve ball conveying track 73. One end of the limit strip 731 extends to the discharge end of the valve ball vibration feeder 72, and the other end of the limit strip 731 extends to the valve ball temporary storage groove 741. The limit strip 731 is used to be embedded with the second limit strip 3061 located on the outer wall of the valve ball 306. After the valve ball 306 falls into the valve ball temporary storage groove 741, the second limit strip 3061 located on the outer wall of the valve ball 306 is embedded with the other end of the limit strip 731; the valve ball assembly mechanism includes a twelfth cylinder 751, a thirteenth cylinder 752, The fifth sliding seat 753, the sixth sliding seat 754 and the suction nozzle 755, the twelfth cylinder 751 is fixed on the fifth bracket 71, the fifth sliding seat 753 is horizontally slidably connected to the fifth bracket 71, the fifth sliding seat 753 is fixed to the piston rod of the twelfth cylinder 751, the thirteenth cylinder 752 is fixed to the fifth sliding seat 753, the sixth sliding seat 754 is vertically slidably connected to the fifth sliding seat 753, the sixth sliding seat 754 is fixed to the piston rod of the thirteenth cylinder 752, and the suction nozzle 755 is fixed to the sixth sliding seat 754; After fixing the limit strip on the inner bottom of the valve ball conveying track, the limit strip can be engaged with the second limit groove on the outer wall of the valve ball. In this way, when the valve ball is conveyed by the valve ball conveying track, the valve ball can be positioned and limited. In addition, after the valve ball falls into the valve ball temporary storage groove through the valve ball conveying track, the second limit groove on the outer wall of the valve ball can be engaged with the other end of the limit strip. In this way, the valve ball can be positioned and limited, and the direction of the valve ball after being installed in the valve body by the valve ball assembly mechanism can be determined. In addition, it should be noted that: the outer wall of the valve ball itself is provided with a limit groove. When the valve ball is installed in the valve body, the limit groove is used to engage with the end of the valve stem so that the valve stem can drive the valve ball to rotate.Furthermore, after adopting the valve ball assembly mechanism, first, the piston rod of the thirteenth cylinder is retracted, the piston rod of the twelfth cylinder is extended, and the suction nozzle is moved to the top of the valve ball temporary storage groove, then, the piston rod of the thirteenth cylinder is extended, and the suction nozzle located on the sixth sliding seat sucks the valve ball located in the valve ball temporary storage groove, then, the piston rod of the thirteenth cylinder is retracted, and the valve ball located in the valve ball temporary storage groove is sucked up by the suction nozzle, and then, the piston rod of the twelfth cylinder is retracted, and the valve ball sucked up by the suction nozzle is moved to the top of the valve body, and then, the piston rod of the thirteenth cylinder is extended, and the valve ball sucked up by the suction nozzle is close to the valve body, and then, the suction nozzle releases the valve ball, and the valve ball falls into the valve body, and finally, the piston rod of the thirteenth cylinder is retracted, and the twelfth cylinder drives the suction nozzle to reset. ;

[0069] The valve cover glue coating station 8 includes a sixth bracket 81, a rotation drive structure 82 and a glue coating structure 83. The sixth bracket 81 is mounted on the frame 1, and the rotation drive structure 82 and the glue coating structure 83 are both mounted on the sixth bracket 81; the rotation drive structure 82 is used to drive the valve cover support seat 122 and the valve cover 302 placed on the valve cover support seat 122 to rotate. When the valve cover 302 rotates, the glue coating structure 83 is used to apply glue to the threaded portion on the outer peripheral wall of the valve cover 302; the rotation drive structure 82 includes a fourteenth cylinder 821, a seventh sliding seat 822 and a third servo motor 823. The fourteenth cylinder 821 is fixed to the sixth bracket 81. The seventh sliding seat 822 is slidably connected to the sixth bracket 81, and the seventh sliding seat 822 is fixed to the piston rod of the fourteenth cylinder 821. The fourteenth cylinder 821 is used to drive the seventh sliding seat 822 to slide along the axial direction of the valve cover 302. The third servo motor 823 is fixed to the seventh sliding seat 822. A pin 824 is fixed on the rotating shaft of the third servo motor 823. The lower end of the pin 824 is used to abut against the valve cover 302. When the third servo motor 823 drives the pin 824 to rotate, the pin 824 is used to drive the valve cover 302 and the valve cover support seat 122 to rotate; the glue coating structure 83 includes a fifteenth cylinder 831 and a glue dispensing valve 832. The fifteenth cylinder 831 is fixed on the sixth bracket 81, and the dispensing valve 832 is fixed on the driving end of the fifteenth cylinder 831. The fifteenth cylinder 831 is used to drive the dispensing valve 832 to move along the radial direction of the valve cover 302, and the dispensing valve 832 is used to apply glue to the threaded portion on the outer peripheral wall of the valve cover 302; the sixteenth cylinder 841 is fixed on the sixth bracket 81, and the second pressure rod 842 is fixed on the piston rod of the sixteenth cylinder 841. The sixteenth cylinder 841 is used to drive the second pressure rod 842 to move along the axial direction of the valve body 301, and the second pressure rod 842 is used to squeeze the valve ball pre-installed in the valve body 301; after adopting the above-mentioned rotation drive structure, When the piston rod of the fourteenth cylinder is extended, the fourteenth cylinder can drive the seventh sliding seat, the third servo motor and the ejector pin to move downward. At this time, the ejector pin can abut against the valve cover located on the valve cover support seat. When the third servo motor drives the ejector pin to rotate, the ejector pin can drive the valve cover and the valve cover support seat for supporting the valve cover to rotate. After the third servo motor drives the valve cover to rotate one circle (gluing is completed), the third servo motor stops rotating, and the piston rod of the fourteenth cylinder contracts to drive the seventh sliding seat, the third servo motor and the ejector pin to move upward and reset. After adopting the above-mentioned glue coating structure, when the piston rod of the fifteenth cylinder is extended, the glue outlet of the glue dispensing valve can be close to the threaded part on the valve cover. During the glue dispensing process of the glue dispensing valve and when the valve cover rotates, the glue dispensing valve can circumferentially apply glue to the threaded part of the valve cover. After the glue coating is completed (after the threaded part on the valve cover is circumferentially applied with glue), the piston rod of the fifteenth cylinder contracts to drive the glue dispensing valve to move and reset.By setting the sixteenth cylinder and the second pressure rod, when the piston rod of the sixteenth cylinder is extended, the second pressure rod can squeeze the valve ball pre-installed in the valve body, so that the valve ball can be installed in place, and because the second pressure rod can squeeze the valve ball pre-installed in the valve body during the process of the glue coating structure coating the valve cover, the two processes can be carried out simultaneously, thereby improving the production efficiency of the ball valve. ;

[0070] The valve cover and valve body assembly station 9 includes a seventh bracket 91, a valve cover pick-up and placement structure 92 and a valve cover pre-tightening structure 93. The seventh bracket 91 is installed on the frame 1, and the valve cover pick-up and placement structure 92 and the valve cover pre-tightening structure 93 are both installed on the seventh bracket 91; the valve cover pick-up and placement structure 92 is used to grab the valve cover 302 and place the valve cover 302 on the valve body 301, and the valve cover pre-tightening structure 93 is used to pre-tighten the valve cover 302 located on the valve body 301 onto the valve body 301; the valve cover pick-up and placement structure 92 includes an eighth sliding seat 921, The seventeenth cylinder 922, the rotating cylinder 923 and the clamping cylinder 924, the seventeenth cylinder 922 is fixed on the seventh bracket 91, the eighth sliding seat 921 is vertically slidably connected to the seventh bracket 91, the eighth sliding seat 921 is fixed to the piston rod of the seventeenth cylinder 922, the rotating cylinder 923 is fixed on the eighth sliding seat 921, and the clamping cylinder 924 is fixed on the driving end of the rotating cylinder 923; the valve cover pre-tightening structure 93 includes a ninth sliding seat 931, an eighteenth cylinder 932, a fourth servo motor 933, a third rotating sleeve 934 and a first rotating rod 935, the eighteenth cylinder 932 is fixed on the seventh bracket 91, the ninth sliding seat 931 is vertically slidably connected to the seventh bracket 91, the ninth sliding seat 931 and the eighteenth cylinder 932 The piston rod is fixed, the fourth servo motor 933 is fixed on the ninth sliding seat 931, one end of the third rotating sleeve 934 is inserted into the ninth sliding seat 931 and is rotatably connected to the ninth sliding seat 931 through the third bearing group 9341, one end of the third rotating sleeve 934 is transmission-connected to the rotating shaft of the fourth servo motor 933, the other end of the third rotating sleeve 934 is transmission-connected to one end of the first rotating rod 935, and a third hexagonal sinking groove 9352 for engaging with the outer end of the valve cover 302 is provided on the inner wall of the other end of the first rotating rod 935; the other end of the third rotating sleeve 934 is provided with a slot 9342 for inserting one end of the first rotating rod 935, and a fourth sliding groove 9351 extending along the axial direction of the first rotating rod 935 is provided on the outer wall of the first rotating rod 935, and a third rotating sleeve 934 is embedded with a third sliding groove 9351 extending along the axial direction of the third rotating sleeve 934 A second pin shaft 936 extending in the radial direction of the first rotating rod 935, the inner end of the second pin shaft 936 is inserted into the fourth sliding groove 9351 and is slidably connected with the fourth sliding groove 9351, a fifth spring 937 is arranged in the slot 9342, one end of the fifth spring 937 abuts against the inner bottom of the slot 9342, and the other end of the fifth spring 937 abuts against one end of the first rotating rod 935; the valve cover and valve body tightening station 10 includes a column 101 and a valve cover tightening structure 102, the column 101 is installed on the frame 1, and the valve cover tightening structure 102 is installed on the column 101; the valve cover tightening structure 102 is used to tighten the valve cover 302 pre-installed on the valve body 301;The valve cover tightening structure 102 includes a tenth sliding seat 1021, a nineteenth cylinder 1022, a fifth servo motor 1023, a second rotating rod 1024 and a fourth rotating sleeve 1025. The nineteenth cylinder 1022 is fixed on the column 101, the tenth sliding seat 1021 is vertically slidably connected to the column 101, the tenth sliding seat 1021 is fixed to the piston rod of the nineteenth cylinder 1022, and the fifth servo motor 1023 is fixed to the tenth sliding seat 1021. On the top, one end of the second rotating rod 1024 is inserted into the tenth sliding seat 1021 and is rotatably connected to the tenth sliding seat 1021 through the fourth bearing group 1026, one end of the second rotating rod 1024 is transmission-connected to the rotating shaft of the fifth servo motor 1023, the other end of the second rotating rod 1024 is transmission-connected to one end of the fourth rotating sleeve 1025, and the inner wall of the other end of the fourth rotating sleeve 1025 is provided with a fourth hexagonal sink 1027 for engaging with the outer end of the valve cover; the other end of the second rotating rod 1024 is inserted into the fourth rotating sleeve 1025, and a pair of fifth sliding grooves 1028 are provided on the outer wall of the second rotating rod 1024. Each fifth slide groove 1028 extends along the axial direction of the second rotating rod 1024, and a pair of third pin shafts 1029 are embedded on the side wall of the fourth rotating sleeve 1025, and each third pin shaft 1029 extends along the radial direction of the fourth rotating sleeve 1025. The inner end of each third pin shaft 1029 is inserted into one of the fifth slide grooves 1028 and is slidably connected to the fifth slide groove 1028. The outer sleeve of the second rotating rod 1024 is provided with a sixth spring 1020, and the two ends of the sixth spring 1020 are respectively abutted against the second rotating rod 1024 and the fourth rotating sleeve 1025; after adopting this valve cover picking and placing structure, when it is necessary to place the valve cover located on the valve cover support seat on the valve body located on the valve body support seat, first, the piston rod of the seventeenth cylinder is retracted to make the clamping cylinder close to the valve cover located on the valve cover support seat, then, the clamping cylinder clamps the valve cover located on the valve cover support seat, and then the piston rod of the seventeenth cylinder is extended, and at the same time, The rotating cylinder drives the clamping cylinder to rotate so that the valve cover on the clamping cylinder is flipped over to the top of the valve body on the valve body support seat. Then, the piston rod of the seventeenth cylinder contracts and the clamping cylinder releases the valve cover. At this time, the valve cover is placed on the valve body on the valve body support seat. Finally, the piston rod of the seventeenth cylinder extends. At the same time, the rotating cylinder drives the clamping cylinder to rotate and reset.After adopting the above-mentioned valve cover pre-tightening structure, when it is necessary to tighten the valve cover on the valve body, first, the eighteenth cylinder drives the ninth sliding seat, the fourth servo motor, the third rotating sleeve and the first rotating rod to move downward. After the first rotating rod moves downward, the third sink groove on the inner wall of the other end of the first rotating rod can be engaged with the outer end portion of the valve cover. Then, the fourth servo motor drives the third rotating sleeve and the first rotating rod to rotate. When the first rotating rod rotates, the valve cover can be pre-tightened to the valve body. Then the fourth servo motor stops rotating. Finally, the eighteenth cylinder drives the ninth sliding seat, the fourth servo motor, The third rotating sleeve and the first rotating rod move up and reset; it should be noted that the number of turns that the fourth servo motor drives the first rotating rod to rotate each time can be set in the controller of the ball valve automatic assembly equipment according to the number of turns required for pre-tightening the valve cover and the valve body. Furthermore, by adopting the above structure, an elastic connection can be achieved between the first rotating rod and the third rotating sleeve. In this way, in the process of the first rotating rod pre-tightening the valve cover to the valve body, the first rotating rod can always be in a state of abutment with the valve cover, that is, the first rotating rod can reliably pre-tighten the valve cover and the valve body. In addition, When the eighteenth cylinder drives the ninth sliding seat to slide so that the first rotating rod abuts against the valve cover on the valve body, the first rotating rod can be prevented from damaging the valve cover and the valve body. After adopting the above-mentioned valve cover tightening structure, when it is necessary to tighten the valve cover on the valve body, first, the nineteenth cylinder drives the tenth sliding seat, the fifth servo motor, the second rotating rod and the fourth rotating sleeve to move downward. After the fourth rotating sleeve moves downward, the fourth sink groove on the inner wall at the other end of the fourth rotating sleeve can be engaged with the outer end portion of the valve cover. Then, the fifth servo motor drives the second rotating rod and the fourth rotating sleeve to rotate. When the fourth rotating sleeve rotates, the valve cover can be tightened to the valve body. , then the fifth servo motor stops rotating, and finally, the nineteenth cylinder drives the tenth sliding seat, the fifth servo motor, the second rotating rod and the fourth rotating sleeve to move up and reset; it should be noted that the number of turns that the fifth servo motor drives the fourth rotating sleeve to rotate each time can be judged according to the torque value of the fifth servo motor received by the controller in the ball valve automatic assembly equipment. For example, when the torque value reaches the set value (when the valve cover and the valve body are pre-tightened), the fifth servo motor stops working. In addition, after adopting the above structure, the fourth rotating sleeve and the second rotating rod can be elastically connected. In this way, in the process of the fourth rotating sleeve tightening the valve cover to the valve body, the fourth rotating sleeve can always be in a state of abutment with the valve cover, that is, the fourth rotating sleeve can reliably tighten the valve cover and the valve body. In addition, when the nineteenth cylinder drives the tenth sliding seat to slide so that the fourth rotating sleeve abuts against the valve cover located on the valve body, the fourth rotating sleeve can be prevented from damaging the valve cover and the valve body. ;

[0071] The discharging station 20 includes a manipulator mechanism 201 and a conveyor belt mechanism 202, both of which are installed on the frame 1, and the manipulator mechanism 201 is used to grab the assembled ball valve located on the turntable mechanism 11 and place the assembled ball valve on the conveyor belt mechanism 202; a plurality of support columns 114 evenly distributed in the circumferential direction are fixed on the frame 1 below the turntable 111, and the upper end of each support column 114 is rotatably connected to a roller 115, the axis of each roller 115 is perpendicular to the axis of the turntable 111, and the upper end of each roller 115 is against the lower end surface of the turntable 111; by adopting the above-mentioned discharging station, when the assembled ball valve is rotated to the discharging station, the manipulator mechanism can grab the assembled ball valve located on the valve body support seat and place the assembled ball valve on the conveyor belt mechanism 202. The assembled ball valve is placed on the conveyor belt mechanism, and the conveyor belt mechanism can transport the assembled ball valve away, that is, the above-mentioned unloading station realizes the automatic unloading function of the ball valve. In addition, the above-mentioned manipulator mechanism and conveyor belt mechanism are both existing commonly used mechanical structures on the market, so they are not described here; through the arrangement of support columns and rollers, under the action of the support columns and rollers, the rollers can achieve reliable support for the turntable to avoid the turntable from tilting, thereby improving the reliability and stability of the turntable during rotation.

[0072] When the present invention is used, the valve body and the valve cover are manually placed on the valve body support seat and the valve cover support seat in the supporting station respectively through the placing station. When the present invention is working, the turntable mechanism rotates the valve body and the valve cover located at the placing station to the valve ball sealing ring assembly station. The valve ball sealing ring assembly station can assemble the valve ball sealing ring to the valve body and the valve cover. After the valve body and the valve cover are assembled with the valve ball sealing ring, the turntable mechanism rotates the valve body and the valve cover to the valve stem sealing ring assembly station. The valve stem sealing ring assembly station can assemble the valve stem sealing ring into the valve stem mounting hole located on the valve body. After the valve body is assembled with the valve stem sealing ring, the turntable mechanism rotates the valve body and the valve cover to the pressure cap assembly station. The pressure cap assembly station can assemble the pressure cap into the valve stem mounting hole located on the valve body and pre-tighten the pressure cap. After the valve body is assembled with the pressure cap, the turntable mechanism rotates the valve body and the valve cover to the valve stem assembly station, and the valve stem assembly station can assemble the valve stem into the valve stem mounting hole on the valve body. After the valve body is assembled with the valve stem, the turntable mechanism can rotate the valve body and the valve cover to the pressure cap tightening station, and the pressure cap tightening station can tighten the pressure cap pre-assembled on the valve body. After the pressure cap on the valve body is tightened, the turntable mechanism rotates the valve body and the valve cover to the valve ball assembly station, and the valve ball assembly station can assemble the valve ball into the valve body. After the valve body is assembled with the valve ball, the turntable mechanism can rotate the valve body and the valve cover to the valve cover gluing station, and the valve cover gluing station can circumferentially apply glue on the threaded part of the valve cover, and the second pressure rod in the valve cover gluing station can squeeze the valve ball pre-installed in the valve body, so that the valve ball and the valve body can be reliably assembled. After the valve cover is coated with glue, the turntable mechanism can rotate the valve body and the valve cover to the valve cover and valve body assembly station, the valve cover and valve body assembly station can grab the valve cover located on the valve cover support seat and pre-tighten the valve cover to the valve body, after the valve cover is pre-tightened to the valve body, the turntable mechanism can rotate the valve body equipped with the valve cover to the valve cover and valve body tightening station, the valve cover and valve body tightening station can tighten the valve cover pre-tightened on the valve body, after the valve cover and valve body are tightened, the turntable mechanism can rotate the assembled ball valve to the discharging station, after the assembled ball valve is rotated to the discharging station, the discharging station can remove the assembled ball valve located on the valve body support seat from the valve body support seat.

[0073] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A ball valve automatic assembly device, characterized in that: The invention comprises a frame (1), a turntable mechanism (11), and a placement station, a valve ball seal ring assembly station (2), a valve stem seal ring assembly station (3), a pressure cap assembly station (4), a valve stem assembly station (5), a pressure cap tightening station (6), a valve ball assembly station (7), a valve cover glue coating station (8), a valve cover and valve body assembly station (9), a valve cover and valve body tightening station (10), and a discharging station (20); the turntable mechanism (11), the valve ball seal ring assembly station (2), the valve stem seal ring assembly station (3), the pressure cap assembly station (4), the valve stem assembly station (5), the pressure cap tightening station (6), the valve ball assembly station (7), the valve cover glue coating station (8) , a valve cover and valve body assembly station (9), a valve cover and valve body tightening station (10) and a discharging station (20) are all mounted on the frame (1); a plurality of supporting stations (12) are circumferentially arranged on the turntable mechanism (11); each of the supporting stations (12) comprises a valve body supporting seat (121) for supporting the valve body (301) and a valve cover supporting seat (122) for supporting the valve cover (302); the turntable mechanism (11) comprises a turntable (111), a turntable divider (112) and a reduction motor (113); the turntable divider (112) is fixed on the frame (1); the reduction motor (113) is fixed to the turntable divider (112); and the output shaft of the reduction motor (113) is connected to the turntable divider (112). The rotary disc divider (112) is connected to the input shaft of the rotary disc divider (112) by transmission, the rotary disc (111) is fixed on the output shaft of the rotary disc divider (112), the valve body support seat (121) in each of the support stations (12) is fixed on the rotary disc (111), and the valve cover support seat (122) in each of the support stations (12) is rotatably connected to the rotary disc (111); the placement station, the valve ball sealing ring assembly station (2), the valve stem sealing ring assembly station (3), the pressure cap assembly station (4), the valve stem assembly station (5), the pressure cap tightening station (6), the valve ball assembly station (7), the valve cover glue coating station (8), the valve cover and valve body assembly station (9), the valve cover and valve body tightening station (10) and the discharge station (20 ) are respectively arranged corresponding to one of the support stations (12); the valve ball sealing ring assembly station (2) comprises a valve ball sealing ring vibration loader (21), a valve ball sealing ring conveying track (22) and a valve ball sealing ring assembly mechanism (23); the valve ball sealing ring vibration loader (21), the valve ball sealing ring conveying track (22) and the valve ball sealing ring assembly mechanism (23) are all installed on the frame (1); the discharge end of the valve ball sealing ring vibration loader (21) is connected to the feed end of the valve ball sealing ring conveying track (22); the valve ball sealing ring vibration loader (21) is used to convey the valve ball sealing ring (303) located in the valve ball sealing ring vibration loader (21) to the valve ball sealing ring conveying track (22);The valve ball sealing ring conveying track (22) is used to convey the valve ball sealing ring (303) to the valve ball sealing ring assembly mechanism (23), and the valve ball sealing ring assembly mechanism (23) is used to assemble the valve ball sealing ring (303) from the valve ball sealing ring conveying track (22) into the valve body (301) and the valve cover (302); the valve ball sealing ring assembly mechanism (23) comprises a first bracket (231), two valve ball sealing ring assembly units and two valve ball sealing ring temporary storage units, the first bracket (231) is fixed on the frame (1), the two valve ball sealing ring assembly units and the two valve ball sealing ring temporary storage units are The valve ball sealing ring temporary storage units are all installed on the first bracket (231), and each of the valve ball sealing ring temporary storage units is respectively located below one of the valve ball sealing ring assembly units. One of the valve ball sealing ring assembly units is used to assemble the valve ball sealing ring (303) in the valve ball sealing ring temporary storage unit located at a corresponding position into the valve body (301), and the other valve ball sealing ring assembly unit is used to assemble the valve ball sealing ring (303) in the valve ball sealing ring temporary storage unit located at a corresponding position into the valve cover (302). The valve ball sealing ring conveying track (22) is used to convey the valve ball sealing ring The valve ball sealing ring (303) is transported to two valve ball sealing ring temporary storage units; each of the valve ball sealing ring temporary storage units comprises two rotating arms (232), the two rotating arms (232) in each valve ball sealing ring temporary storage unit are rotatably connected to the first bracket (231), the lower ends of the two rotating arms (232) in each valve ball sealing ring temporary storage unit are moved inward to form a temporary storage area (233) for temporarily storing the valve ball sealing ring (303) from the valve ball sealing ring transport track (22), and a first elastic structure is provided between each rotating arm (232) and the first bracket (231). , each of the first elastic structures is used to drive the rotating arm (232) at the corresponding position so that the lower end of the rotating arm (232) rotates inward; each of the first elastic structures comprises a first spring (234), one end of each of the first springs (234) abuts against the upper end of the rotating arm (232) at the corresponding position, the other end of each of the first springs (234) abuts against the first bracket (231), and a first blind hole (2321) for inserting a portion of one end of the first spring (234) at the corresponding position is provided on the inner wall of the upper end of each rotating arm (232);Each of the sealing ring assembly units comprises a first plug rod (235), a sleeve (236), a slider (237), a first cylinder (238) and a second cylinder (239); the first cylinder (238) and the second cylinder (239) are both fixed on a first bracket (231); the slider (237) is vertically slidably connected to the first bracket (231); the first plug rod (235) is movably inserted into the sleeve (236); the upper end of the first plug rod (235) is fixed to the piston rod of the first cylinder (238); the upper end of the sleeve (236) is fixed to the slider (237); and the slider (237) is fixed to the piston rod of the second cylinder (239); When the first plug rod (235) moves downward, the lower end of the first plug rod (235) is used to pass through the valve ball seal ring (303) located in one of the temporary storage areas (233) and then be inserted into the valve body (301) or the valve cover (302); when the sleeve (236) moves downward, the lower end of the sleeve (236) is used to push the valve ball seal ring (303) located outside the first plug rod (235) and press the valve ball seal ring (303) into the valve body (301) or the valve cover (302); the valve stem seal ring assembly station (3) comprises a second bracket (31), a valve stem seal ring vibration feeder (32), a valve stem seal ring conveying track (33) and a valve stem seal ring assembly station (33). The valve stem sealing ring assembly mechanism (34) is installed on the frame (1), the second bracket (31) is installed on the frame (1), the valve stem sealing ring vibration feeder (32) and the valve stem sealing ring assembly mechanism (34) are both installed on the second bracket (31), the upper end of the valve stem sealing ring conveying track (33) is connected to the discharge end of the valve stem sealing ring vibration feeder (32), and the lower end of the valve stem sealing ring conveying track (33) is fixed to the second bracket (31); the valve stem sealing ring vibration feeder (32) is used to convey the valve stem sealing ring (304) located in the valve stem sealing ring vibration feeder (32) to the valve stem sealing ring conveying track (33); the valve stem sealing ring conveying track (33) is used to convey the valve stem sealing ring (304) located in the valve stem sealing ring vibration feeder (32) to the valve stem sealing ring conveying track (33); The sealing ring (304) is transported to a valve stem sealing ring assembly mechanism (34), wherein the valve stem sealing ring assembly mechanism (34) is used to assemble the valve stem sealing ring (304) from the valve stem sealing ring transport track (33) into a valve stem mounting hole (3011) located on the valve body (301); the valve stem sealing ring assembly mechanism (34) comprises a valve stem sealing ring temporary storage unit and a valve stem sealing ring assembly unit, the valve stem sealing ring temporary storage unit comprises a third cylinder (341) and a first temporary storage seat (342), and the valve stem sealing ring assembly unit comprises a fourth cylinder (343), a fifth cylinder (344), a first sliding seat (345), a second plug rod (346) and a top sleeve (347);The third cylinder (341) is fixed on the second bracket (31); the first temporary storage seat (342) is fixed to the driving end of the third cylinder (341); a first temporary storage groove (3421) for temporarily storing the valve stem sealing ring (304) is provided on the first temporary storage seat (342); a first opening (3422) for allowing the valve stem sealing ring (304) from the valve stem sealing ring conveying track (33) to fall into the first temporary storage groove (3421) is provided at the upper end of the first temporary storage groove (3421); the third cylinder (341) is used to drive the first temporary storage seat (342) to slide along the radial direction of the second plug rod (346); after the piston rod of the third cylinder (341) is extended, the piston rod (341) located in the first temporary storage groove (3421) ) in the valve stem seal ring (304) coincides with the axis of the second plug rod (346); after the piston rod of the third cylinder (341) contracts, the first opening (3422) is vertically aligned with the discharge end of the valve stem seal ring conveying track (33); the fourth cylinder (343) and the fifth cylinder (344) are both fixed on the second bracket (31); the first sliding seat (345) is slidably connected to the second bracket (31); the second plug rod (346) is movably inserted into the top sleeve (347); one end of the second plug rod (346) is fixed to the piston rod of the fourth cylinder (343); one end of the top sleeve (347) is fixed to the first sliding seat (345); the first sliding seat (345) is connected to the fifth cylinder (3 The piston rod of the valve stem (304) is fixed, the fourth cylinder (343) is used to drive the second plug rod (346) to move along the axial direction of the valve stem sealing ring (304) located in the first temporary storage groove (3421), and the fifth cylinder (344) is used to drive the first sliding seat (345) and the top sleeve (347) to move the first sliding seat (345) and the top sleeve (347) along the axial direction of the valve stem sealing ring (304) located in the first temporary storage groove (3421); the first temporary storage seat (342) is provided with a first through hole (3423) connected to the first temporary storage groove (3421), after the piston rod of the third cylinder (341) is extended, and when the piston rod of the fourth cylinder (343) is extended, the first through hole (3423) and The valve stem sealing ring (304) located in the first temporary storage groove (3421) is used for the second plug rod (346) to pass through so that the valve stem sealing ring (304) located in the first temporary storage groove (3421) is sleeved onto the outside of the second plug rod (346), and the inner diameter of the first through hole (3423) is smaller than the outer diameter of the valve stem sealing ring (304); a second opening (3424) is provided on the side wall of the first temporary storage groove (3421), and after the piston rod of the fourth cylinder (343) is extended and when the piston rod of the third cylinder (341) is contracted, the second opening (3424) is used for the second plug rod (346) and the valve stem sealing ring (304) sleeved onto the outside of the second plug rod (346) to slide laterally out of the first temporary storage seat (342);When the piston rod of the fifth cylinder (344) is extended, the fifth cylinder (344) is used to drive the first sliding seat (345) and the top sleeve (347) to move along the axial direction of the second insertion rod (346) so that the top sleeve (347) presses the valve stem sealing ring (304) located outside the second insertion rod (346) into the valve stem mounting hole (3011) located on the valve body (301); the first temporary storage seat (342) is rotatably connected to a first rotating frame (348), one end of the first rotating frame (348) is used to cover the second opening (3424), and a second elastic structure is provided between the other end of the first rotating frame (348) and the first temporary storage seat (342), the second elastic structure is used to drive the first rotating frame (348) to rotate so that one end of the first rotating frame (348) covers the second opening ( 3424); the second elastic structure comprises a second spring (349), one end of the second spring (349) abuts against the first temporary storage seat (342), the other end of the second spring (349) abuts against the other end of the first rotating frame (348), the other end of the first rotating frame (348) is provided with a second blind hole (3481) for partially inserting the other end of the second spring (349); the upper end of the first temporary storage seat (342) is provided with a first slide groove (3245), the first slide groove (3245) extends along the sliding direction of the first temporary storage seat (342), the first slide groove (3245) is used for partially inserting the valve stem sealing ring (304) from the valve stem sealing ring conveying track (33), and one end of the first slide groove (3245) is connected to the first opening (3422). ; 2. The ball valve automatic assembly equipment according to claim 1, characterized in that: The cap assembly station (4) comprises a third bracket (41), a cap vibrating loader (42), a cap conveying track (43) and a cap assembly mechanism (44); the third bracket (41) is mounted on the frame (1); the cap vibrating loader (42) and the cap assembly mechanism (44) are both mounted on the third bracket (41); the upper end of the cap conveying track (43) is connected to the discharge end of the cap vibrating loader (42); and the lower end of the cap conveying track (43) is fixed to the third bracket (41); the cap vibrating loader (42) is used to load the caps located at the cap vibrating loader to the cap assembly station (44); The pressure caps (305) in the loading machine (42) are conveyed to the pressure cap conveying track (43); the pressure cap conveying track (43) is used to convey the pressure caps (305) to the pressure cap assembly mechanism (44); the pressure cap assembly mechanism (44) is used to assemble the pressure caps (305) from the pressure cap conveying track (43) into the valve stem mounting holes (3011) located on the valve body (301); the pressure cap assembly mechanism (44) comprises a pressure cap temporary storage unit and a pressure cap assembly unit; the pressure cap temporary storage unit comprises a sixth cylinder (441) and a second temporary storage seat (442); the pressure cap assembly unit The invention comprises a seventh cylinder (443), an eighth cylinder (444), a first servo motor (445), a second sliding seat (446), a transmission box (447), a third insertion rod (448) and a first rotating sleeve (449); the sixth cylinder (441) is fixed on the third bracket (41); the second temporary storage seat (442) is fixed to the driving end of the sixth cylinder (441); the second temporary storage seat (442) is provided with a second temporary storage groove (4421) for temporarily storing the pressure cap (305); the upper end of the second temporary storage groove (4421) is provided with a pressure cap conveying rail for supplying pressure caps; The pressing cap (305) in the second temporary storage groove (43) falls into the third opening (4422) in the second temporary storage groove (4421), the sixth cylinder (441) is used to drive the second temporary storage seat (442) to slide along the radial direction of the third insertion rod (448), after the piston rod of the sixth cylinder (441) is extended, the axis of the pressing cap (305) in the second temporary storage groove (4421) coincides with the axis of the third insertion rod (448), after the piston rod of the sixth cylinder (441) is retracted, the third opening (4422) is vertically aligned with the discharge end of the pressing cap conveying track (43);The seventh cylinder (443) and the eighth cylinder (444) are both fixed on the third bracket (41); the second sliding seat (446) is slidably connected to the third bracket (41); the first servo motor (445) and the transmission box (447) are both fixed on the second sliding seat (446); one end of the first rotating sleeve (449) is inserted into the transmission box (447) and is rotatably connected to the transmission box (447) through a first bearing group (4491); a first hexagonal sink groove (4492) for mating with the outer end of the pressure cap (305) is provided on the inner wall of the other end of the first rotating sleeve (449); the first rotating sleeve (449) is drivingly connected to the rotating shaft of the first servo motor (445); The third insertion rod (448) is movably arranged in the first rotating sleeve (449), one end of the third insertion rod (448) is fixed to the piston rod of the seventh cylinder (443), the second sliding seat (446) is fixed to the piston rod of the eighth cylinder (444), the seventh cylinder (443) is used to drive the third insertion rod (448) to move along the axial direction of the pressure cap (305) located in the second temporary storage groove (4421), and the eighth cylinder (444) is used to drive the second sliding seat (446), the first servo motor (445), the transmission box (447) and the first rotating sleeve (449) to move the second sliding seat (446), the first servo motor (445), the transmission box (447) and the first rotating sleeve (449) along the axial direction of the pressure cap (305) located in the second temporary storage groove (4421). The pressing cap (305) in the second temporary storage groove (4421) moves in the axial direction; the second temporary storage seat (442) is provided with a second through hole (4423) connected to the second temporary storage groove (4421); after the piston rod of the sixth cylinder (441) is extended, and when the piston rod of the seventh cylinder (443) is extended, the second through hole (4423) and the pressing cap (305) in the second temporary storage groove (4421) are used for the third insertion rod (448) to pass through so that the pressing cap (305) in the second temporary storage groove (4421) is fitted onto the outside of the third insertion rod (448); the inner diameter of the second through hole (4423) is smaller than the outer diameter of the pressing cap (305); the side wall of the second temporary storage groove (4421) is provided with a a fourth opening (4424), after the piston rod of the seventh cylinder (443) is extended and when the piston rod of the sixth cylinder (441) is retracted, the fourth opening (4424) is used to allow the third plug rod (448) and the pressure cap (305) sleeved on the outside of the third plug rod (448) to slide out laterally to the outside of the second temporary storage seat (442); when the piston rod of the eighth cylinder (444) is extended, the eighth cylinder (444) is used to drive the second sliding seat (446) and the first rotating sleeve (449) to move along the axial direction of the third plug rod (448) so that the first rotating sleeve (449) presses the pressure cap (305) located on the outside of the third plug rod (448) against the valve stem mounting hole (3011) located on the valve body (301);When the first servo motor (445) drives the first rotating sleeve (449) to rotate, the first rotating sleeve (449) is used to screw the pressure cap (305) into the valve stem mounting hole (3011) located on the valve body (301); the second temporary storage seat (442) is rotatably connected to a second rotating frame (4425), one end of the second rotating frame (4425) is used to cover the fourth opening (4424), and an elastic structure is provided between the other end of the second rotating frame (4425) and the second temporary storage seat (442), and the elastic structure is used to drive the second rotating frame (4425) to rotate so that one end of the second rotating frame (4425) covers the fourth opening (4424); the elastic structure includes a third spring (4426), one end of the third spring (4426) abuts against the second temporary storage seat (442), the other end of the third spring (4426) abuts against the other end of the second rotating frame (4425), and the other end of the second rotating frame (4425) A third blind hole (4427) is provided for inserting the other end portion of the third spring (4426); a first pulley (4471), a second pulley (4472) and a transmission belt (4473) are provided in the transmission box (447); the first pulley (4471) is fixed to the rotating shaft of the first servo motor (445); the second pulley (4472) is sleeved on the outside of the first rotating sleeve (449) and is fixed to the first rotating sleeve (449); the second pulley (4472) is sleeved on the outside of the first rotating sleeve (449) and is fixed to the first rotating sleeve (449); the second pulley (4473) is sleeved on the outside of the first rotating sleeve (449) and is fixed to the first rotating sleeve (449); the second pulley (4471) is fixed to the rotating shaft of the first servo motor (445); the second pulley (4472) is sleeved on the outside of the first rotating sleeve (449) and is fixed to the first rotating sleeve (449 ... The pulley (4472) is connected to the first pulley (4471) through a transmission belt (4473); a second slide groove (4428) is provided at the upper end of the second temporary storage seat (442); the second slide groove (4428) extends along the sliding direction of the second temporary storage seat (442); the second slide groove (4428) is used for partially embedding the pressing cap (305) from the pressing cap conveying track (43); one end of the second slide groove (4428) is connected to the third opening (4422); 3. The ball valve automatic assembly equipment according to claim 1, characterized in that: The valve stem assembly station (5) comprises a valve stem vibration loader (51) and a valve stem assembly mechanism (52), wherein the valve stem vibration loader (51) and the valve stem assembly mechanism (52) are both mounted on a frame (1), the valve stem vibration loader (51) is used to convey valve stems to the valve stem assembly mechanism (52), and the valve stem assembly mechanism (52) is used to assemble the valve stems from the valve stem vibration loader (51) into the valve stem mounting holes (3011) located on the valve body (301).

4. The ball valve automatic assembly equipment according to claim 1, characterized in that: The pressing cap tightening station (6) comprises a fourth bracket (61), the fourth bracket (61) being mounted on the frame (1); a pressing structure and a locking structure being mounted on the fourth bracket (61), the pressing structure being used to press the valve body (301) located on the valve body support seat (121), and the locking structure being used to tighten the pressing cap (305) pre-installed in the valve stem mounting hole (3011) on the valve body (301); the pressing structure comprising a ninth cylinder (621), a third sliding seat (622) and a pressing sleeve (623), the ninth cylinder (621) being fixed on the fourth bracket (61), the third sliding seat (622) being vertically slidably connected to the fourth bracket (61), the third sliding seat (622) being fixed to the piston rod of the ninth cylinder (621), the pressing sleeve (623) being fixed on the third sliding seat (622), and when the piston rod of the ninth cylinder (621) is extended, the third sliding seat (622) is pressed against the piston rod of the ninth cylinder (621), and the pressing sleeve (623) is pressed against the piston rod of the ninth cylinder (621). The pressing structure further comprises a tenth air cylinder (624) and a first pressing rod (625), wherein the tenth air cylinder (624) is fixed on the fourth bracket (61), and the first pressing rod (625) is movably arranged in the third sliding seat (622) and the pressing sleeve (623), and the upper end of the first pressing rod (625) is in contact with the tenth air cylinder (624). The piston rod of the tenth cylinder (624) is fixed, and a first limiting groove (6251) for engaging with the inner end of the valve stem installed in the valve stem mounting hole (3011) is provided on the outer wall of the lower end of the first pressure rod (625), and when the piston rod of the tenth cylinder (624) is extended, the lower end of the first pressure rod (625) is used to be inserted into the valve body (301) so that the first limiting groove (6251) located on the outer wall of the first pressure rod (625) engages with the inner end of the valve stem;The locking structure comprises an eleventh cylinder (631), a fourth sliding seat (632), a second servo motor (633), a first rotating shaft (634) and a second rotating sleeve (635); the eleventh cylinder (631) is fixed on the fourth bracket (61); the fourth sliding seat (632) is slidably connected to the fourth bracket (61); the eleventh cylinder (631) is used to drive the fourth sliding seat (632) so that the fourth sliding seat (632) moves along the axial direction of the valve stem mounting hole (3011). The first rotating shaft (634) is rotatably connected to the fourth sliding seat (632) through the second bearing group (6432), the second servo motor (633) is fixed on the fourth sliding seat (632), one end of the first rotating shaft (634) is transmission-connected to the rotating shaft of the second servo motor (633), one end of the second rotating sleeve (635) is transmission-connected to the other end of the first rotating shaft (634), and the second rotating sleeve (635) is rotationally connected to the fourth sliding seat (632). ) is provided on the inner wall of the other end thereof with a hexagonal second recessed groove (6351) for mating and plugging with the outer end of a pressure cap pre-installed in the valve stem mounting hole (3011); one end of the second rotating sleeve (635) is sleeved on the outside of the other end of the first rotating shaft (634); a pair of third sliding grooves (6341) are provided on the outer wall of the other end of the first rotating shaft (634); each of the third sliding grooves (6341) extends along the axial direction of the first rotating shaft (634); the second rotating sleeve (635) is provided with a third sliding groove (6341) extending along the axial direction of the first rotating shaft (634); A pair of first pins (636) are embedded on the side wall of the second rotating sleeve (635), the inner end of each first pin (636) is inserted into one of the third slide grooves (6341) and is slidably connected to the third slide groove (6341), and a fourth spring (637) is arranged inside the second rotating sleeve (635), one end of the fourth spring (637) abuts against the inner bottom of the second rotating sleeve (635), and the other end of the fourth spring (637) abuts against the other end of the first rotating shaft (634). ; 5. The ball valve automatic assembly equipment according to claim 1, characterized in that: The valve ball assembly station (7) comprises a fifth bracket (71), a valve ball vibration loader (72), a valve ball conveying track (73), a valve ball temporary storage seat (74) and a valve ball assembly mechanism. The fifth bracket (71), the valve ball vibration loader (72) and the valve ball conveying track (73) are all mounted on the frame (1). The valve ball temporary storage seat (74) and the valve ball assembly mechanism are all mounted on the fifth bracket (71). The valve ball temporary storage seat (74) is provided with a valve ball temporary storage groove (741). One end of the valve ball conveying track (73) is connected to the discharge end of the valve ball vibration loader (72). The valve ball conveying track (73) is connected to the discharge end of the valve ball vibration loader (72). The other end of the valve ball conveying track (73) is connected to the valve ball temporary storage seat (74), the valve ball conveying track (73) is used to convey the valve ball (306) from the valve ball vibration feeder (72) to the valve ball temporary storage groove (741) located on the valve ball temporary storage seat (74), and the valve ball assembly mechanism is used to assemble the valve ball (306) located in the valve ball temporary storage groove (741) into the valve body (301) located on the valve body support seat (121); a limit strip (731) is fixed on the inner bottom of the valve ball conveying track (73), and the limit strip (731) extends along the length direction of the valve ball conveying track (73). The limit strip (731) ) extends to the discharge end of the valve ball vibrating feeder (72), and the other end of the limit strip (731) extends to the valve ball temporary storage groove (741). The limit strip (731) is used to be engaged with the second limit groove (3061) located on the outer wall of the valve ball (306). After the valve ball (306) falls into the valve ball temporary storage groove (741), the second limit groove (3061) located on the outer wall of the valve ball (306) is engaged with the other end of the limit strip (731); the valve ball assembly mechanism includes a twelfth cylinder (751), a thirteenth cylinder (752), a fifth sliding seat (753), and a sixth sliding seat (7 54) and a suction nozzle (755), the twelfth cylinder (751) is fixed on the fifth bracket (71), the fifth sliding seat (753) is horizontally slidably connected to the fifth bracket (71), the fifth sliding seat (753) is fixed to the piston rod of the twelfth cylinder (751), the thirteenth cylinder (752) is fixed on the fifth sliding seat (753), the sixth sliding seat (754) is vertically slidably connected to the fifth sliding seat (753), the sixth sliding seat (754) is fixed to the piston rod of the thirteenth cylinder (752), and the suction nozzle (755) is fixed on the sixth sliding seat (754).

6. The ball valve automatic assembly equipment according to claim 1, characterized in that: The valve cover glue coating station (8) comprises a sixth bracket (81), a rotational drive structure (82) and a glue coating structure (83); the sixth bracket (81) is mounted on the frame (1); the rotational drive structure (82) and the glue coating structure (83) are both mounted on the sixth bracket (81); the rotational drive structure (82) is used to drive the valve cover support seat (122) and the valve cover (302) placed on the valve cover support seat (122) to rotate; when the valve cover (302) rotates, the glue coating structure (83) is used to apply glue to the threaded portion on the outer peripheral wall of the valve cover (302); The rotary drive structure (82) comprises a fourteenth cylinder (821), a seventh sliding seat (822) and a third servo motor (823), wherein the fourteenth cylinder (821) is fixed on the sixth bracket (81), the seventh sliding seat (822) is slidably connected to the sixth bracket (81), the seventh sliding seat (822) is fixed to the piston rod of the fourteenth cylinder (821), the fourteenth cylinder (821) is used to drive the seventh sliding seat (822) to slide along the axial direction of the valve cover (302), the third servo motor (823) is fixed on the seventh sliding seat (822), and the A pin (824) is fixed on the rotating shaft of the third servo motor (823), and the lower end of the pin (824) is used to abut against the valve cover (302). When the third servo motor (823) drives the pin (824) to rotate, the pin (824) is used to drive the valve cover (302) and the valve cover support seat (122) to rotate. The glue coating structure (83) includes a fifteenth cylinder (831) and a glue dispensing valve (832). The fifteenth cylinder (831) is fixed on the sixth bracket (81), and the glue dispensing valve (832) is fixed on the driving end of the fifteenth cylinder (831). The fifteenth air cylinder (831) is used to drive the glue dispensing valve (832) to move along the radial direction of the valve cover (302), and the glue dispensing valve (832) is used to apply glue to the threaded portion on the outer peripheral wall of the valve cover (302); the sixteenth air cylinder (841) is fixed to the sixth bracket (81), and the second pressure rod (842) is fixed to the piston rod of the sixteenth air cylinder (841), and the sixteenth air cylinder (841) is used to drive the second pressure rod (842) to move along the axial direction of the valve body (301), and the second pressure rod (842) is used to squeeze the valve ball pre-installed in the valve body (301).

7. The ball valve automatic assembly equipment according to claim 1, characterized in that: The valve cover and valve body assembly station (9) comprises a seventh bracket (91), a valve cover pick-up and placement structure (92) and a valve cover pre-tightening structure (93); the seventh bracket (91) is mounted on the frame (1); the valve cover pick-up and placement structure (92) and the valve cover pre-tightening structure (93) are both mounted on the seventh bracket (91); the valve cover pick-up and placement structure (92) is used to grab the valve cover (302) and place the valve cover (302) on the valve body (301); the valve cover pre-tightening structure (93) is used to pre-tighten the valve cover (302) located on the valve body (301) to The valve cover pick-up and placement structure (92) comprises an eighth sliding seat (921), a seventeenth cylinder (922), a rotating cylinder (923) and a clamping cylinder (924), wherein the seventeenth cylinder (922) is fixed on the seventh bracket (91), the eighth sliding seat (921) is vertically slidably connected to the seventh bracket (91), the eighth sliding seat (921) is fixed to the piston rod of the seventeenth cylinder (922), the rotating cylinder (923) is fixed on the eighth sliding seat (921), and the clamping cylinder (924) is fixed on the rotating cylinder (923). The valve cover pre-tightening structure (93) comprises a ninth sliding seat (931), an eighteenth cylinder (932), a fourth servo motor (933), a third rotating sleeve (934) and a first rotating rod (935), wherein the eighteenth cylinder (932) is fixed on the seventh bracket (91), the ninth sliding seat (931) is vertically slidably connected to the seventh bracket (91), the ninth sliding seat (931) is fixed to the piston rod of the eighteenth cylinder (932), and the fourth servo motor (933) is fixed to the ninth sliding seat ( 931), one end of the third rotating sleeve (934) is inserted into the ninth sliding seat (931) and is rotatably connected to the ninth sliding seat (931) through a third bearing group (9341), one end of the third rotating sleeve (934) is transmission-connected to the rotating shaft of the fourth servo motor (933), the other end of the third rotating sleeve (934) is transmission-connected to one end of the first rotating rod (935), and the inner wall of the other end of the first rotating rod (935) is provided with a third hexagonal sink groove (9352) for engaging with the outer end of the valve cover (302);The other end of the third rotating sleeve (934) is provided with a slot (9342) for inserting one end of the first rotating rod (935), and the outer wall of the first rotating rod (935) is provided with a fourth slide groove (9351) extending along the axial direction of the first rotating rod (935), and the third rotating sleeve (934) is embedded with a second pin shaft (936) extending along the radial direction of the third rotating sleeve (934), and the inner end portion of the second pin shaft (936) is inserted into the fourth slide groove (9351) and is slidably connected to the fourth slide groove (9351), and the slot (9342) is provided with a fourth slide groove (9351) extending along the axial direction of the first rotating rod (935). A fifth spring (937) is provided in the slot (9342), one end of the fifth spring (937) abuts against the inner bottom of the slot (9342), and the other end of the fifth spring (937) abuts against one end of the first rotating rod (935); the valve cover and valve body tightening station (10) comprises a column (101) and a valve cover tightening structure (102), the column (101) is mounted on the frame (1), and the valve cover tightening structure (102) is mounted on the column (101); the valve cover tightening structure (102) is used to tighten the valve cover pre-installed on the valve body (301). The valve cover (302) is provided with a valve cover fastening structure (102), comprising a tenth sliding seat (1021), a nineteenth cylinder (1022), a fifth servo motor (1023), a second rotating rod (1024) and a fourth rotating sleeve (1025), wherein the nineteenth cylinder (1022) is fixed on the column (101), the tenth sliding seat (1021) is vertically slidably connected to the column (101), the tenth sliding seat (1021) is fixed to the piston rod of the nineteenth cylinder (1022), and the fifth servo motor (1023) is fixed to the tenth sliding seat (1021). 021), one end of the second rotating rod (1024) is inserted into the tenth sliding seat (1021) and is rotatably connected to the tenth sliding seat (1021) through a fourth bearing group (1026), one end of the second rotating rod (1024) is transmission-connected to the rotating shaft of the fifth servo motor (1023), the other end of the second rotating rod (1024) is transmission-connected to one end of the fourth rotating sleeve (1025), and the inner wall of the other end of the fourth rotating sleeve (1025) is provided with a fourth hexagonal sink groove (1027) for engaging with the outer end of the valve cover;The other end of the second rotating rod (1024) is inserted into the fourth rotating sleeve (1025), a pair of fifth sliding grooves (1028) are arranged on the outer wall of the second rotating rod (1024), each of the fifth sliding grooves (1028) extends along the axial direction of the second rotating rod (1024), a pair of third pins (1029) are embedded on the side wall of the fourth rotating sleeve (1025), each of the third pins (1029) extends along the radial direction of the fourth rotating sleeve (1025), the inner end of each third pin (1029) is inserted into one of the fifth sliding grooves (1028) and is slidably connected to the fifth sliding groove (1028), and a sixth spring (1020) is sleeved on the outer side of the second rotating rod (1024), and the two ends of the sixth spring (1020) are respectively against the second rotating rod (1024) and the fourth rotating sleeve (1025). ; 8. The ball valve automatic assembly equipment according to claim 1, characterized in that: The discharging station (20) comprises a manipulator mechanism (201) and a conveyor belt mechanism (202), both of which are mounted on a frame (1), and the manipulator mechanism (201) is used to grab a ball valve that is located on a turntable mechanism (11) and has been assembled, and to place the ball valve that has been assembled on the conveyor belt mechanism (202); a plurality of support columns (114) that are evenly distributed in the circumferential direction are fixed to the frame (1) below the turntable (111), and the upper end of each of the support columns (114) is rotatably connected to a roller (115), the axis of each of the rollers (115) is perpendicular to the axis of the turntable (111), and the upper end of each of the rollers (115) abuts against the lower end surface of the turntable (111).

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