Universal mounting head of chip mounter

Abstract

The invention provides a universal mounting head for a chip mounter, and relates to the technical field of chip mounter parts, the universal mounting head comprises a bottom plate, a plurality of transition transmission structures are fixedly mounted at the lower end part of the bottom plate, each transition transmission structure comprises a first motor, an output shaft of each first motor extends out of the upper part of the bottom plate and is rotatably mounted with the bottom plate, and a plurality of first chain wheel groups are arranged at the upper end part of the bottom plate; a plurality of transition transmission structures are arranged at the lower end of a bottom plate, a worker can start a first motor and a second motor, a first chain wheel set drives a first chain to rotate to drive a second chain wheel set to drive a second chain to rotate, and then a suction nozzle rod moves back and forth and rotates. Stable power is provided for movement and rotation of the adsorption pipe, a motor used for rotation is placed on the lower portion, so that a solid motor can be selected, a universal motor can be selected, model replacement is convenient, and in addition, due to the fact that a chain wheel is connected to the output shaft, wiring is also convenient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of patch machine parts, more specifically, relates to a universal mounting head of a patch machine. BACKGROUND

[0002] The mounting head of the patch machine is a core component of the patch machine, which is used for grabbing, moving and placing patch components on a PCB, and needs to realize accurate component picking, positioning and angle adjustment to complete the process requirements.

[0003] According to the search of the Chinese patent with the announcement number "CN113873781B", a mounting head is disclosed, which arranges the negative pressure unit and the z-axis assembly on the two sides of the y-axis assembly, so that the counterweight is more uniform, and the u-axis assembly is arranged on the z-axis assembly, and the z-axis assembly is arranged on the y-axis assembly, so that the structure is optimized to make the mounting head more portable and avoid generating large impact force.

[0004] Based on the above search and the existing technology, it is found that the above-mentioned patent has certain defects. When the mounting head is used, it is often only possible to select a small motor due to the limited space between components, and such small motors are inferior to ordinary specification motors in terms of power output and service life, and it is difficult to meet the efficient and stable mounting requirements. SUMMARY

[0005] In order to solve the above technical problems, the application provides a universal mounting head of a patch machine to solve the above problems.

[0006] A universal mounting head of a patch machine, comprising a bottom plate:

[0007] A plurality of transition transmission structures are fixedly installed at the lower end of the bottom plate;

[0008] The transition transmission structure comprises a first motor, the output shaft of the first motor extends above the bottom plate and is rotatably installed with the bottom plate, a plurality of first sprocket sets are arranged at the upper end of the bottom plate, the first sprocket set comprises a first driving sprocket and a first driven sprocket, the first driving sprocket is fixedly installed on the output shaft of the first motor, and the first driven sprocket is rotatably installed on the bottom plate, a first chain is wound on the inner side of the first sprocket set, a side plate is fixedly installed on the side wall of the bottom plate, a plurality of second motors are fixedly installed on the side wall of the side plate, the second motors are located below the bottom plate, the output shaft of the second motor extends out of the side wall of the side plate and is rotatably installed with the side plate, a plurality of second sprocket sets are arranged on the side wall of the side plate, the second sprocket set comprises a second driving sprocket and a second driven sprocket, the second driving sprocket is fixedly installed on the output shaft of the second motor, and the second driven sprocket is rotatably installed on the side plate, and a second chain is wound on the inner side of the second sprocket set.

[0009] Preferably, the bottom plate upper end is fixedly installed with a plurality of sliding rails, the sliding rails are located inside the first sprocket set, the sliding rails are slidably installed with sliding blocks, the sliding block upper end is fixedly installed with a fixed block, the sliding block side wall is fixedly installed with a connecting block, the connecting block is fixedly installed with one side of the first chain, the side plate side wall is fixedly installed with a U-shaped block, the U-shaped block is internally provided with a plurality of linear bearings, the linear bearings are provided between the fixed block and the suction nozzle rod, the suction nozzle rod distal end is fixedly installed with a transfer assembly block, the transfer assembly block circumferential surface is provided with a light shield, the transfer assembly block side wall is fixedly communicated with a suction nozzle fixed rod, the suction nozzle rod distal end away from the light shield is fixedly communicated with a tracheal joint.

[0010] Preferably, a plurality of stroke grooves are provided inside the bottom plate, photoelectric sensors are symmetrically provided on the inner wall of the stroke grooves, photoelectric fins are fixedly installed on the side wall of the fixed block, the photoelectric fins are located inside the stroke grooves, the photoelectric fins are adapted to the photoelectric sensors, the fixed block surface is provided with a snap spring, the snap spring is adapted to the suction nozzle rod.

[0011] Preferably, the bottom plate upper end is fixedly installed with a first fixed plate, the first fixed plate upper end is fixedly installed with a first piston cylinder, the first piston cylinder circumferential surface is provided with a first one-way valve group for one-way air intake, the first piston cylinder distal end is provided with a one-way valve pipe for preventing air backflow, the bottom plate lower end is fixedly installed with an air outlet device, the air outlet device air outlets are respectively directed towards the first motor and the second motor, the air outlet device and the one-way valve pipe are provided with a gas conveying pipe, the first piston cylinder is slidably installed with a first piston rod, the two fixed blocks are fixedly installed with first transmission blocks outside, the first transmission blocks are fixedly installed with the first piston rod.

[0012] Preferably, the fixed block upper end is fixedly installed with a first U-shaped shaft base, the U-shaped block upper end is fixedly installed with a second fixed plate, the second fixed plate upper end is fixedly installed with a second U-shaped shaft base, the first U-shaped shaft base inside is rotatably installed with a first connecting rod, the second U-shaped shaft base inside is rotatably installed with a second connecting rod, the first connecting rod and the second connecting rod are rotatably installed, the second fixed plate side wall is fixedly installed with a plurality of fixed frames, the fixed frames are fixedly installed with oil drip bottles inside, the oil drip bottles are provided with oil conveying pipes at the upper end, the oil drip bottles are provided with inclined drip nozzles below, the inclined drip nozzles are directed towards the second sprocket set inner wall, the oil drip bottles are provided with valve handles for rotating open valve oil dripping at the upper end, the valve handles and the second connecting rod are rotatably installed with a third connecting rod.

[0013] Preferably, the nozzle fixing rod circumferential surface is symmetrically fixedly installed with a fixing shaft, the outer side of the fixing shaft is fixedly installed with an auxiliary nozzle, the auxiliary nozzle is parallel to the nozzle fixing rod, a second piston cylinder is arranged between the side plate and the U-shaped block, the two ends of the second piston cylinder extend out of the outer side of the side plate and the U-shaped block respectively, a second piston rod is slidably installed in the second piston cylinder, a second one-way valve group is arranged on the circumferential surface of the second piston cylinder, a soft tube is fixedly and communicatively connected between the second piston cylinder and the auxiliary nozzle, the soft tube is slidably installed with the light shield, a second transmission block is fixedly installed on the side wall of part of the fixing block, part of the second piston rod is fixedly installed with the first transmission block, and the second transmission block is fixedly installed with part of the second piston rod.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] In the present application, by arranging multiple transition transmission structures at the lower end of the bottom plate, the first motor and the second motor can be started by the workers, the rotation of the first chain is driven by the first sprocket set, the second chain is driven to rotate by the second sprocket set, and then the front and back movement and the rotating action of the nozzle rod are realized, which provides stable power for the movement and rotation of the adsorption pipe, and the motor for rotation is placed below, so that a solid motor can be selected, and a general motor can be selected, and the replacement of the model is more convenient, and in addition, since the chain wheel is connected to the output shaft, the wiring is also more convenient;

[0016] In the present application, the rotation transmission (control adsorption pipe circumferential movement) of the second sprocket set and the second chain driven by the second motor, the sliding fit and key connection characteristics of the nozzle rod and the linear bearing, and the rigid connection (maintain the stability of the adsorption pipe structure) of the transfer assembly block and the light shield are combined, so that the precise angle adjustment of the adsorption pipe in the front and back telescopic and rotating combined movement can be realized, the complex patching process requirements are met, and motion interference is avoided;

[0017] In the present application, the linkage of the first transmission block, the first piston rod and the first piston cylinder when the fixing block moves can convert mechanical energy into pneumatic power, the one-way conduction characteristics of the first one-way valve group and the one-way valve pipe are utilized, and the compressed air is delivered to the air outlet device through the gas delivery pipe, so that the heat dissipation during the operation of the first motor and the second motor can be realized, and the service life of the motor is effectively prolonged;

[0018] In the present application, the first U-shaped rotating shaft base and the first connecting rod are driven by the fixing block to move, the linear displacement is converted into the flip rotating action of the valve handle through the lever amplification effect of the second connecting rod and the third connecting rod, the opening and closing of the valve in the oil dropping bottle are controlled, the lubricating oil is directionally dropped to the inner wall of the second sprocket set through the inclined dropping nozzle, and the oil film self-uniformization effect during the movement of the second chain is combined, so that the periodic automatic lubrication and maintenance of the second sprocket set and the second chain can be realized, and the wear of the transmission components is significantly reduced;

[0019] In the present application, the reciprocating motion during adsorption and release is realized by the transmission connection of the second transmission block or the first transmission block with the second piston rod and the second piston cylinder, the auxiliary air path suction and exhaust mechanism formed by the second one-way valve group and the auxiliary suction nozzle, when the workpiece is adsorbed and withdrawn by the suction pipe, the second piston cylinder synchronously enhances the negative pressure adsorption force through the hose and the auxiliary suction nozzle, and when the workpiece is released, the auxiliary suction nozzle realizes double negative pressure holding in the adsorption stage and cooperative exhaust in the release stage, thereby significantly improving the stability and motion synchronization of the workpiece transfer process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective structural schematic diagram of the present application;

[0021] Figure 2 is a partial combined structural schematic diagram of the present application;

[0022] Figure 3 is a second fixed plate connection combined structural schematic diagram of the present application;

[0023] Figure 4 is a bottom plate connection combined structural schematic diagram of the present application;

[0024] Figure 5 is a suction nozzle rod connection combined structural schematic diagram of the present application;

[0025] Figure 6 is a bottom plate perspective structural schematic diagram of the present application;

[0026] Figure 7 is a fixed block connection combined structural schematic diagram of the present application;

[0027] Figure 8 is a U-shaped block connection combined structural schematic diagram of the present application;

[0028] Figure 9 is a first fixed plate connection combined structural schematic diagram of the present application;

[0029] Figure 10 is a sliding block connection combined structural schematic diagram of the present application;

[0030] Figure 11 is a second piston cylinder sectional view of the present application.

[0031] In the figure, the correspondence between the component names and the figure numbers is as follows: 11, bottom plate; 12, first motor; 13, first chain wheel set; 14, first chain; 15, second motor; 16, second chain wheel set; 17, second chain; 18, slide rail; 19, sliding block; 21, fixed block; 22, connecting block; 23, U-shaped block; 24, linear bearing; 25, suction nozzle rod; 26, transfer assembly block; 27, light shield; 28, suction nozzle fixing rod; 29, air pipe joint; 31, stroke groove; 32, photoelectric sensor; 33, photoelectric sheet metal; 34, clasp spring; 35, side plate; 36, first fixed plate; 37, first piston cylinder; 38, first one-way valve set; 39, one-way valve pipe; 41, air outlet device; 42, air conveying pipe; 43, first piston rod; 44, first transmission block; 45, first U-shaped rotating shaft base; 46, second fixed plate; 47, second U-shaped rotating shaft base; 48, first connecting rod; 49, second connecting rod; 51, fixed frame; 52, oil drip bottle; 53, inclined drip nozzle; 54, valve handle; 55, oil conveying pipe; 56, third connecting rod; 57, fixed shaft; 58, auxiliary suction nozzle; 59, second piston cylinder; 61, second piston rod; 62, second one-way valve set; 63, hose; 64, second transmission block. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be further described in detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0033] Please refer to Figure 1 - Figure 11 The present application provides a universal mounting head of a chip mounter, which comprises a bottom plate 11.

[0034] A plurality of transition transmission structures are fixedly installed at the lower end of the bottom plate 11.

[0035] The transition transmission structure comprises a first motor 12, the output shaft of the first motor 12 extends above the bottom plate 11 and is rotatably installed with the bottom plate 11, a plurality of first sprocket sets 13 are arranged on the upper end of the bottom plate 11, the first sprocket set 13 comprises a first driving sprocket and a first driven sprocket, wherein the first driving sprocket is fixedly installed on the output shaft of the first motor 12, the first driven sprocket is rotatably installed on the bottom plate 11, one of the sprockets in the first sprocket set 13 is fixedly installed with the output shaft of the first motor 12, and the other sprocket is rotatably installed on the bottom plate 11, a first chain 14 is arranged on the inner side of the first sprocket set 13, a side plate 35 is fixedly installed on the side wall of the bottom plate 11, a plurality of second motors 15 are fixedly installed on the side wall of the side plate 35, the second motor 15 is located below the bottom plate 11, the output shaft of the second motor 15 extends out of the side wall of the side plate 35 and is rotatably installed with the side plate 35, a plurality of second sprocket sets 16 are arranged on the side wall of the side plate 35, the second sprocket set 16 comprises a second driving sprocket and a second driven sprocket, wherein the second driving sprocket is fixedly installed on the output shaft of the second motor 15, the second driven sprocket is rotatably installed on the side plate 35, one of the sprockets in the second sprocket set 16 is fixedly installed with the output shaft of the second motor 15, and the other sprocket is rotatably installed on the side plate 35, a second chain 17 is arranged on the inner side of the second sprocket set 16;

[0036] By arranging a plurality of transition transmission structures on the lower end of the bottom plate 11, the operator can start the first motor 12 and the second motor 15, drive the rotation of the first chain 14 through the first sprocket set 13, drive the rotation of the second chain 17 through the second sprocket set 16, and then complete the forward and backward movement and rotation of the suction nozzle rod 25, thereby providing stable power for the movement and rotation of the suction tube, and placing the motor for rotation below, so that a solid motor can be selected, and a general motor can be selected, and the replacement model is more convenient, in addition, since the sprocket is connected to the output shaft, the wiring is also more convenient.

[0037] A plurality of sliding rails 18 are fixedly installed on the upper end of the bottom plate 11, the sliding rails 18 are located on the inner side of the first sprocket set 13, sliding blocks 19 are slidingly installed on the outer side of the sliding rails 18, fixed blocks 21 are fixedly installed on the upper end of the sliding blocks 19, connecting blocks 22 are fixedly installed on the side wall of the sliding blocks 19, the connecting blocks 22 are fixedly installed with one side of the first chain 14, U-shaped blocks 23 are fixedly installed on the side wall of the side plate 35, a plurality of linear bearings 24 are arranged in the U-shaped block 23, a suction nozzle rod 25 is arranged between the linear bearings 24 and the fixed blocks 21, (the linear bearings 24, the second sprocket set 16 and the suction nozzle rod 25 are connected by keys, since this transmission mode is common on the chip mounter head, it is a conventional setting to avoid the movement interference of the forward and backward movement and rotation of the suction nozzle rod 25, therefore, it will not be described again);

[0038] Through the driving of the second motor 15 to drive the rotation transmission of the second sprocket wheel set 16 and the second chain 17 (control the circumferential movement of the suction tube), by the sliding fit and key connection characteristics of the suction nozzle rod 25 and the linear bearing 24, combined with the rigid connection of the transfer assembly block 26 and the light shield 27 (maintain the stability of the suction tube structure), so as to realize the precise angle adjustment of the suction tube in the front and rear telescopic and rotary compound motion, meet the complex patching process requirements, and avoid motion interference.

[0039] The end of the suction nozzle rod 25 is fixedly installed with the transfer assembly block 26, the circumferential surface of the transfer assembly block 26 is provided with the light shield 27 (for shielding light for camera shooting), the side wall of the transfer assembly block 26 is fixedly connected with the suction nozzle fixing rod 28, the suction nozzle rod 25, the transfer assembly block 26, the light shield 27 and the suction nozzle fixing rod 28 form the suction tube, and the end of the suction nozzle rod 25 away from the light shield 27 is fixedly connected with the air pipe joint 29;

[0040] By arranging the air pipe joint 29, the air pipe joint 29 can be connected with an external air source, so as to complete the effect of suction and workpiece placing of the suction tube.

[0041] A plurality of stroke grooves 31 are arranged in the bottom plate 11, photoelectric sensors 32 are symmetrically arranged on the inner walls of the stroke grooves 31, photoelectric fins 33 are fixedly installed on the side walls of the fixed blocks 21, the photoelectric fins 33 are located in the stroke grooves 31, the photoelectric fins 33 are matched with the photoelectric sensors 32, the surfaces of the fixed blocks 21 are provided with snap springs 34, and the snap springs 34 are matched with the suction nozzle rod 25;

[0042] Through the cooperation of the stroke grooves 31 and the photoelectric sensors 32 arranged in the bottom plate 11, the sliding of the photoelectric fins 33 in the stroke grooves 31 when the suction tube moves, and the real-time monitoring of the photoelectric sensors 32 to the position signals of the photoelectric fins 33, the closed-loop accurate control of the forward and backward movement stroke of the suction tube can be realized, and the reliability of the suction tube during work can be ensured.

[0043] First fixed plates 36 are symmetrically fixedly installed on the upper ends of the bottom plates 11, first piston cylinders 37 are fixedly installed on the upper ends of the first fixed plates 36, first one-way valve groups 38 for one-way air inlet are arranged on the circumferential surfaces of the first piston cylinders 37, one-way valve pipes 39 for preventing air backflow are arranged at the ends of the first piston cylinders 37, air outlet devices 41 are fixedly installed on the lower ends of the bottom plates 11, the blowing openings of the air outlet devices 41 respectively face the first motor 12 and the second motor 15, a gas conveying pipe 42 is arranged between the air outlet devices 41 and the one-way valve pipes 39, and first piston rods 43 are slidably installed in the first piston cylinders 37.

[0044] When the fixed block 21 moves to the side of the side plate 35, the fixed block 21 connected with the first transmission block 44 will drive the first piston rod 43 to move to the outside of the first piston cylinder 37 through the first transmission block 44, so that the first piston rod 43 sucks air into the inside of the first piston cylinder 37 through the one-way air inlet of the first one-way valve group 38, and then when the fixed block 21 resets, the first transmission block 44 will push the first piston rod 43 to slide in the first piston cylinder 37 and press the air. Through the linkage of the first transmission block 44, the first piston rod 43 and the first piston cylinder 37, the mechanical kinetic energy can be converted into pneumatic power. By using the one-way conduction characteristics of the first one-way valve group 38 and the one-way valve pipe 39, the compressed air is delivered to the air outlet device 41 through the air delivery pipe 42, so that the heat dissipation during the working process of the first motor 12 and the second motor 15 can be realized, and the service life of the motor is effectively prolonged.

[0045] The first U-shaped rotating shaft base 45 is fixedly installed on the upper end of the fixed block 21, the second fixed plate 46 is fixedly installed on the upper end of the U-shaped block 23, the second U-shaped rotating shaft base 47 is fixedly installed on the upper end of the second fixed plate 46, the first connecting rod 48 is rotatably installed in the inner side of the first U-shaped rotating shaft base 45, the second connecting rod 49 is rotatably installed in the inner side of the second U-shaped rotating shaft base 47, and the first connecting rod 48 and the second connecting rod 49 are rotatably installed. A plurality of fixed frames 51 are fixedly installed on the side wall of the second fixed plate 46, an oil drip bottle 52 is fixedly installed in the inner side of the fixed frame 51, an oil delivery pipe 55 is arranged on the upper end of the oil drip bottle 52, an inclined oil nozzle 53 is arranged below the oil drip bottle 52, the inclined oil nozzle 53 faces the inner wall of the second sprocket set 16, a valve handle 54 for rotating and opening the valve of the oil drip bottle 52 is arranged on the upper end of the oil drip bottle 52, and a third connecting rod 56 is rotatably arranged between the valve handle 54 and the second connecting rod 49.

[0046] When the second sprocket set 16 and the second chain 17 need to be maintained, the staff delivers lubricating oil into the inside of the oil drip bottle 52 through the oil delivery pipe 55, at this time the fixed block 21 moves to drive the first U-shaped rotating shaft base 45 and the first connecting rod 48 to move, and through the lever amplification effect of the second connecting rod 49 and the third connecting rod 56, the linear displacement is converted into the flip rotary action of the valve handle 54 to control the opening and closing of the valve in the oil drip bottle 52. The lubricating oil is directionally dripped to the inner wall of the second sprocket set 16 through the inclined oil nozzle 53, and combined with the oil film self-uniformization effect when the second motor 15 controls the movement of the second sprocket set 16 and the second chain 17, so that the periodic automatic lubrication and maintenance of the second sprocket set 16 and the second chain 17 can be realized, and the wear of the transmission components is significantly reduced.

[0047] The fixed shaft 57 is fixedly installed on the circumferential surface of the suction nozzle fixing rod 28, the auxiliary suction nozzle 58 is fixedly installed outside the fixed shaft 57, the auxiliary suction nozzle 58 is parallel to the suction nozzle fixing rod 28, the second piston cylinder 59 is arranged between the side plate 35 and the U-shaped block 23, the two ends of the second piston cylinder 59 extend outside the side plate 35 and the U-shaped block 23 respectively, the second piston rod 61 is slidably installed in the second piston cylinder 59, the second one-way valve group 62 is arranged on the circumferential surface of the second piston cylinder 59, the soft tube 63 is fixedly and communicatively connected between the second piston cylinder 59 and the auxiliary suction nozzle 58, the soft tube 63 is slidably installed with the light shield 27, the second transmission block 64 is fixedly installed on the side wall of the partial fixed block 21, the second transmission block 64 is fixedly installed with the partial second piston rod 61, and the first transmission block 44 is fixedly installed with the partial second piston rod 61.

[0048] When the staff moves the adsorption pipe by starting the first motor 12 to complete the adsorption and placement of the workpiece, the moving fixed block 21 will drive the second piston rod 61 to move synchronously through the first transmission block 44 or the second transmission block 64, the reciprocating motion of the adsorption and release is realized through the transmission connection between the second transmission block 64 or the first transmission block 44 and the second piston rod 61 and the second piston cylinder 59, and the auxiliary air path formed by the second one-way valve group 62 and the auxiliary suction nozzle 58 realizes the suction and exhaust mechanism, when the adsorption pipe adsorbs the workpiece and is withdrawn, the reset of the adsorption pipe will pull the second piston rod 61 to slide outward in the second piston cylinder 59 through the first transmission block 44 or the second transmission block 64 on the connecting block 22, because the only places where the second piston cylinder 59 can suck air are the second one-way valve group 62 and the auxiliary suction nozzle 58, therefore the second piston rod 61 sliding outward will suck air through the auxiliary suction nozzle 58 and the second one-way valve group 62, the second piston cylinder 59 synchronously enhances the negative pressure adsorption force with the auxiliary suction nozzle 58 through the soft tube 63, when placing, the connecting block 22 will push the second piston rod 61 to slide in the second piston cylinder 59 through the first transmission block 44 or the second transmission block 64, air in the second piston cylinder 59 is exhausted, the reverse exhaust releases the auxiliary adsorption, so that the auxiliary suction nozzle 58 can realize double negative pressure holding in the adsorption stage and coordinated exhaust in the release stage, which significantly improves the stability and motion synchronization of the workpiece transfer process.

[0049] Working principle:

[0050] The first step, in use, the staff first connects the tracheal joint 29 with the external gas source, and then starts the first motor 12. After the first motor 12 is started, the first sprocket set 13 drives the first chain 14 to rotate between the first sprocket set 13. Because the connecting block 22 is fixedly installed with the first chain 14, the connecting block 22 will drive the fixed block 21 to move forward and backward, thereby making the fixed block 21 drive the sliding block 19 to slide on the slide rail 18. At the same time, the fixed block 21 will drive the suction nozzle rod 25, the transfer assembly block 26, the light shield 27, and the suction nozzle fixing rod 28 (the four form an adsorption pipe) to move synchronously. When the distance between the suction nozzle fixing rod 28 and the workpiece meets the adsorption standard, the staff opens the gas source, and the stable adsorption of the workpiece by the suction nozzle fixing rod 28 can be realized. When the fixed block 21 moves, the fixed block 21 will drive the photoelectric sheet metal 33 to slide in the stroke groove 31 and be monitored by the photoelectric sensor 32 to complete the stroke;

[0051] The second step, when the staff drives the adsorption pipe to complete the adsorption and placement of the workpiece by the first motor 12, the moving fixed block 21 will drive the second piston rod 61 to move synchronously through the first transmission block 44 or the second transmission block 64. After the suction nozzle fixing rod 28 adsorbs the workpiece, the adsorption pipe is reset to lift the workpiece. In this process, the first transmission block 44 or the second transmission block 64 on the connecting block 22 will pull the second piston rod 61 to slide outward in the second piston cylinder 59. Because the second piston cylinder 59 only inhales air through the second one-way valve set 62 and the auxiliary suction nozzle 58 (the auxiliary suction nozzle 58 transmits gas through the hose 63), the second piston rod 61 sliding outward will inhale air through the auxiliary suction nozzle 58 and the second one-way valve set 62, so that the auxiliary suction nozzle 58 assists in adsorbing the workpiece, effectively improving the adsorption stability. When the workpiece is placed subsequently, the connecting block 22 pushes the second piston rod 61 to slide in the second piston cylinder 59 through the first transmission block 44 or the second transmission block 64, discharges the internal air, and thus completes the auxiliary placement;

[0052] The third step, in use, the staff starts the second motor 15. The second motor 15 drives the second chain 17 to rotate through the second sprocket set 16, thereby making the adsorption pipe connected to the second sprocket set 16 rotate and drive the patch workpiece to adjust the angle, meeting the requirements of the patch process. At the same time, by means of the key connection of the suction nozzle rod 25 and the linear bearing 24 and the second sprocket set 16, under the cooperative control of the first motor 12 and the second motor 15, the adsorption pipe can complete the extension and retraction and rotation movement, avoiding interference in the movement process;

[0053] Fourth step, when the fixed block 21 moves to the side plate 35 side, the fixed block 21 connected with the first transmission block 44 will drive the first piston rod 43 to move to the outside of the first piston cylinder 37 through the first transmission block 44, the first piston rod 43 sucks air into the first piston cylinder 37 through the one-way air inlet function of the first one-way valve group 38, when the fixed block 21 resets, the first transmission block 44 pushes the first piston rod 43 to slide in the first piston cylinder 37 and extrudes air, the air is discharged from the air outlet device 41 through the one-way valve pipe 39 and the gas conveying pipe 42, directly blowing to the first motor 12 and the second motor 15, realizing effective auxiliary heat dissipation for the two;

[0054] Fifth step, when the second sprocket set 16 and the second chain 17 need to be maintained, at this time, the workers can deliver the quantitative lubricating oil into the oil dripping bottle 52 through the oil conveying pipe 55, then when the fixed block 21 moves, it will drive the first U-shaped shaft base 45 to move to the side of the second U-shaped shaft base 47, through the rotary connection of the first connecting rod 48 and the second connecting rod 49, the first connecting rod 48 pushes the second connecting rod 49 to move to the side of the second U-shaped shaft base 47 in an arc shape, the second connecting rod 49 in turn pushes the third connecting rod 56 to move to the side of the valve handle 54 in an arc shape, under the limiting action of the valve handle 54, the movement of the third connecting rod 56 forces the valve handle 54 to turn upward, opening the internal valve of the oil dripping bottle 52, the lubricating oil drips into the inner wall of the second sprocket set 16 through the inclined oil dripping nozzle 53, and then, along with the movement of the second motor 15 controlling the second sprocket set 16 and the second chain 17, the lubricating oil is uniformly delivered, realizing the maintenance of the second sprocket set 16 and the second chain 17.

[0055] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art, and the embodiments are chosen and described for the best explanation of the principles and practical application of the application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A universal mounting head of a chip mounter, comprising a base plate (11), characterized in that: a plurality of transition transmission structures are fixedly installed on the lower end of the base plate (11); the transition transmission structure comprises a first motor (12), the output shaft of the first motor (12) extends above the base plate (11) and is rotatably installed with the base plate (11); a plurality of second motors (15) are fixedly installed on the side wall of the side plate (35), the output shaft of the second motor (15) extends out of the side wall of the side plate (35) and is rotatably installed with the side plate (35), a plurality of second sprocket sets (16) are arranged on the side wall of the side plate (35), the second sprocket set (16) comprises a second driving sprocket and a second driven sprocket, wherein the second driving sprocket is fixedly installed on the output shaft of the second motor (15), the second driven sprocket is rotatably installed on the side plate (35), a second chain (17) is arranged inside the second sprocket set (16), a plurality of sliding rails (18) are fixedly installed on the upper end of the base plate (11), a sliding block (19) is slidably installed on the outside of the sliding rail (18), a fixed block (21) is fixedly installed on the upper end of the sliding block (19), and a U-shaped block (23) is fixedly installed on the side wall of the side plate (35).

2. The universal placement head of claim 1, wherein, a plurality of first sprocket sets (13) are arranged on the upper end of the base plate (11), the first sprocket set (13) comprises a first driving sprocket and a first driven sprocket, wherein the first driving sprocket is fixedly installed on the output shaft of the first motor (12), the first driven sprocket is rotatably installed on the base plate (11), a first chain (14) is arranged inside the first sprocket set (13), a connecting block (22) is fixedly installed on the side wall of the sliding block (19), the connecting block (22) is fixedly installed on one side of the first chain (14), a plurality of linear bearings (24) are arranged inside the U-shaped block (23), a suction nozzle rod (25) is arranged between the linear bearing (24) and the fixed block (21), a transfer assembly block (26) is fixedly installed at the end of the suction nozzle rod (25), a light shield (27) is arranged on the circumferential surface of the transfer assembly block (26), a suction nozzle fixing rod (28) is fixedly and continuously connected to the side wall of the transfer assembly block (26), and a gas pipe joint (29) is fixedly and continuously connected to the end of the suction nozzle rod (25) away from the light shield (27).

3. The universal placement head of claim 2, wherein, a plurality of stroke grooves (31) are arranged inside the base plate (11), photoelectric sensors (32) are symmetrically arranged on the inner wall of the stroke groove (31), a photoelectric fin (33) is fixedly installed on the side wall of the fixed block (21), the photoelectric fin (33) is located inside the stroke groove (31), the photoelectric fin (33) is matched with the photoelectric sensor (32), and a circlip (34) is arranged on the surface of the fixed block (21), which is matched with the suction nozzle rod (25).

4. The universal placement head of any one of claims 1-3, wherein, The bottom plate (11) upper end part symmetry fixed mounting has the first fixed plate (36), the first fixed plate (36) upper end part fixed mounting has the first piston cylinder (37), the first piston cylinder (37) circumferential surface is equipped with the first one-way valve group (38) of air intake, the first piston cylinder (37) end is equipped with the one-way valve pipe (39) of gas backflow prevention, the bottom plate (11) lower end part fixed mounting has the air outlet device (41), the air outlet device (41) blowout port respectively towards the first motor (12) and the second motor (15).

5. The universal placement head of claim 4, wherein, The air outlet device (41) and one-way valve pipe (39) between be equipped with the gas pipe (42), the first piston cylinder (37) inside sliding installation has the first piston rod (43), wherein two the fixed block (21) outside fixed mounting has the first transmission block (44), the first transmission block (44) with first piston rod (43) fixed installation.

6. The universal placement head of any one of claim 5, wherein, The fixed block (21) upper end part fixed mounting has the first U-shaped rotating shaft base (45), the U-shaped block (23) upper end part fixed mounting has the second fixed plate (46).

7. The universal placement head of claim 6, wherein, The second fixed plate (46) upper end part fixed mounting has the second U-shaped rotating shaft base (47), the first U-shaped rotating shaft base (45) inner side rotationally mounted has the first connecting rod (48), the second U-shaped rotating shaft base (47) inner side rotationally mounted has the second connecting rod (49), the first connecting rod (48) and the second connecting rod (49) rotationally mounted, the second fixed plate (46) side wall fixed mounting has a plurality of fixed frame (51).

8. The universal placement head of claim 7, wherein, The fixed frame (51) inner side fixed mounting has the oil drip bottle (52), the oil drip bottle (52) upper end part is equipped with the oil delivery pipe (55), the oil drip bottle (52) below is equipped with the inclined drip nozzle (53), the inclined drip nozzle (53) towards the second sprocket group (16) inner wall, the oil drip bottle (52) upper end part is equipped with the valve handle (54) of rotary open valve oil drip, the valve handle (54) and the second connecting rod (49) between rotationally mounted has the third connecting rod (56).

9. The universal mounting head of claim 3, wherein, The suction nozzle fixed rod (28) circumferential surface symmetry fixed mounting has the fixed shaft (57), the fixed shaft (57) outside fixed mounting has the auxiliary suction nozzle (58), the auxiliary suction nozzle (58) with suction nozzle fixed rod (28) parallel, the side plate (35) and the U-shaped block (23) between be equipped with the second piston cylinder (59), the two ends of the second piston cylinder (59) respectively extend the outside of the side plate (35) and the U-shaped block (23), the second piston cylinder (59) inside sliding installation has the second piston rod (61).

10. The universal placement head of claim 9, wherein, The second piston cylinder (59) circumferential surface is equipped with the second one-way valve group (62), the second piston cylinder (59) and auxiliary suction nozzle (58) between fixed communication has the hose (63), the hose (63) with sunshade (27) sliding installation, part the fixed block (21) side wall fixed mounting has the second transmission block (64), part the second piston rod (61) with first transmission block (44) fixed installation, the second transmission block (64) with part second piston rod (61) fixed installation.

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