Automatic angle valve assembling all-in-one machine and working method thereof

Abstract

The invention belongs to the technical field of automatic assembling, and particularly relates to an automatic angle valve assembling all-in-one machine and a working method thereof. Comprising an assembly table; an automatic assembler is arranged on the assembling table; the automatic assembler comprises an assembly line which is used for conveying valve bodies and assembling the valve bodies in the conveying process. The assembly line is mounted on the assembly table; the conveying base plates are all mounted on the transmission type assembly line; the valve body is placed on the conveying base plate; a table; the workbench is mounted on the assembly table; the gas-driven positioning unit is arranged on the workbench; the gas-driven positioning unit comprises two positioning clamping blocks; the mechanical arm only needs to complete the action of positioning and sleeving, so that the working strength and energy consumption of the mechanical arm are reduced, the screwing process is integrated on the clamping operation of the valve body, the limitation of a machine during assembly is reduced, and the assembly efficiency and effect of the machine are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic assembly, and particularly relates to an automatic angle valve assembly machine and its working method. Background Art

[0002] An angle valve, namely an angle stop valve, has its structure improved from a straight-through stop valve, with the inlet and outlet at a 90° angle. The valve body is mostly made by casting and is assembled with components such as a valve core, a valve stem, and a handwheel. The assembly process has been automated in standardized production. However, when using existing automated assembly machines, the handwheel needs to be sleeved on the valve body and tightened to complete the assembly of the angle valve. Among them, the valve body is clamped on a fixture, and the handwheel is picked up by a robotic arm and placed on the valve body, and the output end of the robotic arm is rotated to drive the handwheel to rotate, so as to tighten the handwheel on the valve body. However, the above steps are relatively cumbersome, resulting in too long a time required for the tightening operation. This requires the robotic arm to complete two independent actions of positioning and sleeving and rotating and tightening, which not only increases the working energy consumption and strength of the robotic arm, reduces its service life, but also prolongs the assembly time of the angle valve, thereby reducing the assembly efficiency of the machine and making the machine have strong limitations during assembly. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automatic angle valve assembly machine and its working method, which effectively solve the problems in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solution: An automatic angle valve assembly machine includes an assembly table; an automatic assembler is arranged on the assembly table; the automatic assembler includes an assembly line, which is used to convey the valve body and perform assembly operations on the valve body during the conveying process; the assembly line is installed on the assembly table; Conveyor substrates, several of which are all installed on the transmission assembly line; the valve body is placed on the conveyor substrates; A workbench; the workbench is installed on the assembly table; A pneumatically driven positioning unit, which is arranged on the workbench and is used to clamp and fix the valve body moved above the workbench; The pneumatically driven positioning unit includes two positioning clamp blocks, which are respectively located on both sides of the top of the conveyor substrate. Positioning cylinders are installed on the opposite surfaces of the two positioning clamp blocks. A positioning cross plate is slidably connected to the positioning cylinders. A first T-shaped platform is installed on the positioning cross plate, and a rotation force tightening structure is arranged on the first T-shaped platform, which is used to tighten the handwheel sleeved on the valve body; Rubber pads, which are respectively connected to the opposite surfaces of the two positioning clamp blocks; Positioning springs, which are sleeved on the positioning cylinders; one end of the positioning spring is fixedly connected to the positioning clamp block, and the other end is fixedly connected to the positioning cross plate; The rotational force tightening structure includes a second T-shaped platform, which is connected to the first T-shaped platform; An electric control telescopic device, which is installed on the second T-shaped platform; A third T-shaped platform, which is connected to the output end point of the electric control telescopic device; A limit base, which is installed on the top of the third T-shaped platform; A limit cylinder, which is connected through the side of the limit base close to the valve body, and the two are in sliding fit; A limit U-shaped seat, which is installed at one end of the limit cylinder close to the valve body; A rotating wheel is installed in the limit U-shaped seat.

[0005] Preferably, it includes contact pieces; they are all installed at the relative surfaces of the positioning cross plate and the positioning clamping block; L-shaped racks, which are all connected to the bottoms of the two positioning clamping blocks; The orientations of the two L-shaped racks are opposite; Guide cylinders, which are all installed at the opposite surfaces of the two first T-shaped platforms.

[0006] Preferably, it includes a bidirectional telescopic rod, which is installed at the bottom of the workbench; Displacement long plates are installed at both opposite ends of the bidirectional telescopic rod, and displacement cylinders are connected to the relative surfaces of the two displacement long plates, and they are located at the top of the workbench; A U-shaped pipe, which is installed at the top of the workbench; The opening of the U-shaped pipe is away from the workbench; L-shaped pipes; One end of each of the two L-shaped pipes is respectively butted against the two ends of the U-shaped pipe, and the other ends are opposite to each other and both face the valve body; The opposite ends of the two guide cylinders are respectively located inside the relative end points of the two L-shaped pipes; The guide cylinders and the L-shaped pipes are in sliding fit; A guide base, which is installed on the workbench; One end of the L-shaped pipe facing the valve body is fixedly connected to the guide base; A guide spring, which is sleeved on the guide cylinder; One end of the guide spring is fixedly connected to the first T-shaped platform, and the other end is fixedly connected to the guide base.

[0007] Preferably, it includes a robotic arm, which is located at the top of the workbench; When one of the conveying substrates stays above the workbench, the robotic arm sleevs the handwheel it grabs on the valve body on the conveying substrate; The relative movement of the two positioning clamping blocks is used to clamp the valve body.

[0008] Preferably, it includes a rotation limit block, which is installed on the side of the third T-shaped platform close to the valve body; The handwheel is located on the movement path of the rotation limit block; The rotation limit block is behind the positioning clamping block.

[0009] Preferably, it includes a limiting spring sleeved on a limiting cylinder; one end of the limiting spring is fixedly connected to a limiting base, and the other end is fixedly connected to a limiting U-shaped seat; the side wall of the handwheel is located at the moving path of the rotating wheel; a friction ring is installed on the outer side wall of the rotating wheel; a power source is installed on the limiting U-shaped seat, and its output end is connected to the rotating wheel; the rotating wheel is located between a rotating limiting block and a positioning clamping block.

[0010] Preferably, guide hollow tubes which are connected and communicated are installed on both sides of the U-shaped pipe; the displacement cylinder is located in the guide hollow tube, and the two are in sliding fit.

[0011] Preferably, a gas-making and resistance-reducing mechanism is further arranged on the first T-shaped table; the gas-making and resistance-reducing mechanism includes a driving gear located at the bottom of the first T-shaped table; the driving gear is meshed and connected with an L-shaped rack; a driving rotating shaft connected to the driving gear; two driving bases are installed on the first T-shaped table, and the driving gear is located between the two driving bases; both ends of the driving rotating shaft pass through the two driving bases and are connected with driving discs at the same time; driving cylinders are installed on the opposite sides and close to the edges of the two driving discs.

[0012] Preferably, it includes gas-making square boxes, the quantity and positions of which correspond to the driving discs; the gas-making square boxes are installed on the side surface of the first T-shaped table; a gas-making square plate which is fitted and connected in the gas-making square box, and the two are in sliding fit; a main valve is connected to the top of the gas-making square box, and one end of a bent pipe is installed on the main valve; the other end of the bent pipe faces the valve body and is connected with a spray head; driven valves are connected to both sides of the gas-making square box, and the installation positions of the driven valves are outside the limit positions of the maximum moving path of the gas-making square plate; a moment-driven cross block located on the side of the driving disc away from the driving gear; a through moment-driven sliding groove is arranged on the side of the moment-driven cross block close to the driving gear, and the driving cylinder is located in the moment-driven sliding groove and the two are in sliding fit; an auxiliary sliding column is installed on the top of the moment-driven cross block; an auxiliary base is installed at the bottom of the gas-making square box, and one end of the auxiliary sliding column away from the moment-driven cross block passes through the auxiliary base and the bottom of the gas-making square box and is connected with the gas-making square plate; the auxiliary sliding column is in sliding fit with the auxiliary base and the bottom of the gas-making square box.

[0013] The present invention also provides a working method of an automatic angle valve assembly machine, including the following steps: S1. The assembly line continuously conveys the valve body to be assembled above the workbench; S2. Operate the pneumatic alignment unit to clamp the valve body to be assembled; S3. The automatic assembler sleeves the handwheel on the valve body; S4. Adopt a rotational force tightening structure to tighten the handwheel on the valve body, completing the automated assembly process of the angle valve.

[0014] As can be seen from the above, an automatic angle valve assembly machine provided by the present invention has the effect of automatically assembling the angle valve, and the process of assembling the handwheel on the valve body is extended from the clamping operation of the valve body, rather than requiring the operation of a robotic arm to drive the handwheel to rotate for assembly. This enables the robotic arm to only complete the positioning and sleeving actions, thereby subtracting the rotational tightening action from the robotic arm to reduce the working intensity and energy consumption of the robotic arm, and simultaneously reducing the complexity of the used robotic arm, improving the service life of the robotic arm, avoiding the high complexity of the used robotic arm resulting in its easy damage and frequent maintenance, thus reducing the limitations of the machine during assembly. Integrating the tightening process into the clamping process of the valve body improves the assembly efficiency of the machine and also enhances the assembly effect of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the pipeline structure of the present invention; Figure 3 is a cross-sectional view of the L-shaped pipeline of the present invention; Figure 4 is a schematic diagram of the rubber pad structure of the present invention; Figure 5 is a schematic diagram of the workbench structure of the present invention; Figure 6 is a schematic diagram of the L-shaped rack structure of the present invention; Figure 7 is a schematic diagram of the rotating wheel structure of the present invention; Figure 8 is a cross-sectional view of the guiding hollow tube of the present invention; Figure 9 is a cross-sectional view of the gas-making box of the present invention; In the figure: 1, assembly table; 2, assembly line; 3, conveying substrate; 4, workbench; 5, positioning clamp block; 6, positioning cylinder; 7, positioning cross plate; 8, first T-shaped table; 9, second T-shaped table; 10, rubber pad; 11, positioning spring; 12, contact piece; 13, L-shaped rack; 14, guiding cylinder; 15, double-direction telescopic rod; 16, displacement long plate; 17, displacement cylinder; 18, U-shaped pipe; 19, L-shaped pipe; 20, guiding base; 21, guiding spring; 22, robotic arm; 23, electric control telescopic device; 24, third T-shaped table; 25, rotation limiting block; 26, limiting base; 27, limiting cylinder; 28, limiting U-shaped seat; 29, limiting spring; 30, rotation wheel; 31, friction ring; 32, power source; 33, guiding hollow pipe; 34, driving gear; 35, driving rotating shaft; 36, driving base; 37, driving disc; 38, driving cylinder; 39, gas-making square box; 40, gas-making square plate; 41, bent pipe; 42, spray head; 43, rectangular moving cross block; 44, rectangular moving chute; 45, auxiliary sliding column; 46, auxiliary base. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] The embodiment is given by Figures 1 to 9 The present invention includes an assembly table 1, and an automatic assembler is arranged on the assembly table 1; the automatic assembler includes an assembly line 2, which is used for conveying the valve body and performing assembly operations on the valve body during the conveying process; the assembly line 2 is installed on the assembly table 1; Conveying substrates 3, the number of which is several and are all installed on the transmission-type assembly line 2; the valve body is placed on the conveying substrate 3; Workbench 4; the workbench 4 is installed on the assembly table 1; Robotic arm 22, which is located above the workbench 4; when one of the conveying substrates 3 stays above the workbench 4, the robotic arm 22 slews the handwheel it grabs onto the valve body on the conveying substrate 3; the relative movement of the two positioning clamp blocks 5 is used to clamp the valve body; When the machine is in use, the assembly line 2 continuously conveys the valve bodies to be assembled above the workbench 4, and then the robotic arm 22 is operated to slew the assembled handwheel onto the valve body, and the handwheel is tightened on the valve body by the rotational force tightening structure to complete the automatic assembly of the angle valve.

[0019] The pneumatic alignment unit in this embodiment is arranged on the workbench 4 and is used to clamp and fix the valve body that moves above the workbench 4; The air-driven combined position unit includes two positioning clamping blocks 5, which are respectively located on both sides of the top of the conveying substrate 3. Positioning cylinders 6 are installed on the opposite sides of the two positioning clamping blocks 5. A positioning cross plate 7 is slidably connected to the positioning cylinders 6, and a first T-shaped platform 8 is installed on the positioning cross plate 7; Rubber pads 10, which are connected to the opposite surfaces of the two positioning clamping blocks 5; Positioning springs 11, which are sleeved on the positioning cylinders 6; one end of the positioning spring 11 is fixedly connected to the positioning clamping block 5, and the other end is fixedly connected to the positioning cross plate 7; Contact pieces 12; which are installed at the opposite surfaces of the positioning cross plate 7 and the positioning clamping block 5; L-shaped racks 13, which are respectively connected to the bottoms of the two positioning clamping blocks 5; the orientations of the two L-shaped racks 13 are opposite; Guide cylinders 14, which are respectively installed at the opposite surfaces of the two first T-shaped platforms 8; A bidirectional telescopic rod 15, which is installed at the bottom of the workbench 4; displacement long plates 16 are installed at both opposite ends of the bidirectional telescopic rod 15, and displacement cylinders 17 are connected to the opposite surfaces of the two displacement long plates 16, and are located on the top of the workbench 4; A U-shaped pipe 18, which is installed on the top of the workbench 4; the opening of the U-shaped pipe 18 is away from the workbench 4; L-shaped pipes 19; one ends of the two L-shaped pipes 19 are respectively butted against the two ends of the U-shaped pipe 18, and the other ends face each other, and both face the valve body; the opposite ends of the two guide cylinders 14 are respectively located inside the opposite end points of the two L-shaped pipes 19; the guide cylinders 14 and the L-shaped pipes 19 are in sliding fit; A guide base 20, which is installed on the workbench 4; the end of the L-shaped pipe 19 facing the valve body is fixedly connected to the guide base 20; A guide spring 21, which is sleeved on the guide cylinder 14; one end of the guide spring 21 is fixedly connected to the first T-shaped platform 8, and the other end is fixedly connected to the guide base 20; Guide hollow tubes 33 are installed on both sides of the U-shaped pipe 18 and are communicated with each other; the displacement cylinder 17 is located inside the guide hollow tube 33, and the two are in sliding fit; When it is necessary to assemble the angle valve, it means that a conveying substrate 3 to be assembled is moved by the assembly line 2 to above the workbench 4. At this time, by starting the bidirectional telescopic rod 15, the displacement long plates 16 at its two end points move relatively, thereby driving the displacement cylinder 17 thereon to move in a limited manner within the guiding hollow tube 33. That is, the displacement cylinder 17 moves closer to the U-shaped pipe 18, causing the gas in the guiding hollow tube 33 to be squeezed into the U-shaped pipe 18 until it enters the L-shaped pipe 19 connected thereto. Thus, the above gas acts on the guiding cylinder 14, thereby pushing the guiding cylinder 14 to move, making the guiding spring 21 in a buffered state. Since the two end points of the two L-shaped pipes 19 face each other and both face the valve body, the first T-shaped platform 8 on the guiding cylinder 14 drives the positioning cross plate 7 to move closer to the valve body. The positioning cross plate 7 drives the positioning clamping block 5 to move closer to the valve body through the positioning cylinder 6 and the positioning spring 11. Thus, the two positioning clamping blocks 5 move relatively, and the valve body at the conveying substrate 3 above the workbench 4 is clamped and fixed, avoiding the movement of the valve body caused by non-human factors during assembly, which affects the assembly process and effect. Thereby, the assembly effect of the machine on the angle valve is improved, and the stability of the machine during assembly is enhanced; After the positioning clamping block 5 contacts the valve body, through the continuous operation of the bidirectional telescopic rod 15, the guiding cylinder 14 continues to move, driving the positioning cross plate 7 on the first T-shaped platform 8 to move in a limited manner at the positioning cylinder 6, making the positioning spring 11 in a buffered state, strengthening the contact strength between the positioning clamping block 5 and the valve body and the friction force when the two contact, further strengthening the clamping effect of the positioning clamping block 5 on the valve body, and avoiding the shaking of the valve body during assembly due to insufficient contact force or friction force between the two, which affects the assembly of the angle valve; At the same time, when the assembled valve body is completed, only by canceling the operation of the bidirectional telescopic rod 15, the positioning spring 11 and the guiding spring 21 originally in the buffered state can be reset. Since the output end of the bidirectional telescopic rod 15 no longer provides power, it drives the guiding cylinder 14 to move back within the L-shaped pipe 19, and the gas in it returns to the guiding hollow tube 33 through the U-shaped pipe 18, thereby driving the displacement cylinder 17 to move back, and automatically driving the positioning clamping block 5 to return to the initial position, avoiding the increase in working energy consumption of the machine during use caused by the need to operate the bidirectional telescopic rod 15 to move back, thereby reducing the limitations of the machine during use; When the contact piece 12 on the positioning cross plate 7 contacts the contact piece 12 on the positioning clamping block 5 after the positioning cross plate 7 moves a certain distance, it indicates that the clamping operation of the valve body has been completed. The signal sent by the contact of the two contact pieces 12 will be sent to the control center, and the control center automatically controls the operation of some electric control devices in the machine to control the machine to complete the assembly of the angle valve.

[0020] The first T-shaped platform 8 of this embodiment is provided with a rotary force tightening structure for tightening the handwheel sleeved on the valve body; the rotary force tightening structure includes a second T-shaped platform 9 connected to the first T-shaped platform 8; An electric control telescopic device 23 installed on the second T-shaped platform 9; A third T-shaped platform 24 connected to the output end point of the electric control telescopic device 23; A rotary movement limiting block 25 installed on the side of the third T-shaped platform 24 close to the valve body; the handwheel is located on the movement path of the rotary movement limiting block 25; the rotary movement limiting block 25 is located behind the positioning clamping block 5; A limiting base 26 installed on the top of the third T-shaped platform 24; A limiting cylinder 27 penetrating and connected to the side of the limiting base 26 close to the valve body, and the two are in sliding fit; A limiting U-shaped seat 28 installed at one end of the limiting cylinder 27 close to the valve body; A limiting spring 29 sleeved on the limiting cylinder 27; one end of the limiting spring 29 is fixedly connected to the limiting base 26, and the other end is fixedly connected to the limiting U-shaped seat 28; a rotary wheel 30 is installed inside the limiting U-shaped seat 28, and the side wall of the handwheel is located on the movement path of the rotary wheel 30; a friction ring 31 is installed on the outer side wall of the rotary wheel 30; a power source 32 is installed on the limiting U-shaped seat 28, and its output end is connected to the rotary wheel 30; the rotary wheel 30 is located between the rotary movement limiting block 25 and the positioning clamping block 5; When the air-driven positioning unit moves the first T-shaped platform 8 during the clamping of the valve body, it will also drive the second T-shaped platform 9 to move synchronously. Under the action of the electric control telescopic device 23 and the third T-shaped platform 24, it will drive the rotary movement limiting block 25 to move towards the valve body. Since the rotary movement limiting block 25 is located behind the positioning clamping block 5, it means that the positioning clamping block 5 contacts the valve body first. A sensor is also provided inside the positioning clamping block 5. When the valve body is clamped by the positioning clamping block 5, the control center will receive this signal synchronously, so as to sleeve the handwheel grasped by the robotic arm 22 on the valve body and be contacted by the moving rotary movement limiting block 25, so as to timely limit and clamp the handwheel to avoid phenomena such as dislocation; and it is worth mentioning that the time for the robotic arm 22 to sleeve the handwheel on the valve body is exactly proportional to the distance between the rotary movement limiting block 25 and the positioning clamping block 5. That is to say, after the valve body is clamped, the continuous movement of the positioning cross plate 7 will timely move the rotary movement limiting block 25 on the positioning cross plate 7 around the handwheel. During this process, the handwheel will be sleeved on the valve body by the robotic arm 22. During the sleeving process, the rotary movement limiting block 25 is still moving continuously. After sleeving, the handwheel can be timely clamped by the rotary movement limiting block 25 to avoid phenomena such as dislocation or dropping of the handwheel due to non-human factors; When the handwheel is limited, since the rotating wheel 30 is located between the rotating limit block 25 and the positioning clamp block 5, that is, before the rotating limit block 25 touches the handwheel, the rotating wheel 30 on the third T-shaped platform 24 touches the handwheel first, initially positioning the position of the handwheel to avoid misalignment of the assembly position and affecting the use effect of the machine; when the rotating wheel 30 touches the handwheel and the third T-shaped platform 24 continues to move, the limiting base 26 on the third T-shaped platform 24 is limited to move on the limiting cylinder 27, so that the limiting spring 29 is in a buffering state, which is used to strengthen the contact strength and frictional force between the rotating wheel 30 and the handwheel. The friction ring 31 provided on the rotating wheel 30 can also ensure the frictional force between the rotating wheel 30 and the handwheel, and the movement of the third T-shaped platform 24 does not stop until the rotating limit block 25 limits the handwheel; when the handwheel is limited on the valve body, the two contact pieces 12 are in contact to send a signal to the control center, which controls the start of the power source 32, so that it can drive the rotating wheel 30 to rotate. Since the frictional force between the two rotating wheels 30 and the handwheel is ensured to be strong enough, the handwheel can be driven to rotate and rotate on the valve body. The control center will synchronously control the working state of the electric telescopic device 23 according to the rotation speed of the handwheel, so that the rotating wheel 30 provides a downward pulling force while driving the handwheel to rotate, so that the handwheel rotates and moves downward synchronously on the valve body to match the axial feed of the handwheel along the valve body thread, so that the handwheel is thread-connected, that is, tightened on the valve body, thus completing the automatic assembly operation of the angle valve; thus, the process of assembling the handwheel on the valve body is extended from the clamping operation of the valve body, rather than the need to operate the robotic arm 22 to drive the handwheel to rotate for assembly, so that the robotic arm 22 only needs to complete the positioning and sleeving action, thereby subtracting the rotation and tightening action on the robotic arm 22, reducing the working intensity and energy consumption of the robotic arm 22, and synchronously reducing the complexity of the used robotic arm 22, improving the service life of the robotic arm 22, avoiding the high complexity of the used robotic arm 22 resulting in its vulnerability and frequent maintenance, thus reducing the limitations of the machine during assembly, integrating the tightening process into the clamping process of the valve body, improving the assembly efficiency of the machine, and also improving the assembly effect of the machine.

[0021] A gas-making and resistance-reducing mechanism is further provided on the first T-shaped platform 8 of this embodiment; the gas-making and resistance-reducing mechanism includes a driving gear 34, which is located at the bottom of the first T-shaped platform 8; the driving gear 34 is meshed and connected with the L-shaped rack 13; A driving rotating shaft 35, which is connected to the driving gear 34; two driving bases 36 are installed on the first T-shaped platform 8, and the driving gear 34 is located between the two driving bases 36; both ends of the driving rotating shaft 35 pass through the two driving bases 36 and are connected with driving discs 37 at the same time; driving cylinders 38 are installed on the opposite sides and near the edges of the two driving discs 37; The gas-making square box 39, the quantity and position of which correspond to the driving disc 37; the gas-making square box 39 is installed on the side of the first T-shaped platform 8; The gas-making square plate 40, which is fitted and connected inside the gas-making square box 39, and the two are in sliding fit; a main valve is connected to the top of the gas-making square box 39, and one end of a bent pipe 41 is installed on the main valve; the other end of the bent pipe 41 faces the valve body and is connected to a spray head 42; driven valves are connected to both sides of the gas-making square box 39, and the installation positions of the driven valves extend beyond the limit positions of the maximum movement path of the gas-making square plate 40 to the outside; The rectangular moving cross block 43, which is located on the side of the driving disc 37 away from the driving gear 34; a through rectangular moving chute 44 is provided on the side of the rectangular moving cross block 43 close to the driving gear 34, and the driving cylinder 38 is located in the rectangular moving chute 44 and the two are in sliding fit; An auxiliary sliding column 45 is installed on the top of the rectangular moving cross block 43; an auxiliary base 46 is installed on the bottom of the gas-making square box 39, and the end of the auxiliary sliding column 45 away from the rectangular moving cross block 43 passes through the auxiliary base 46 and the bottom of the gas-making square box 39 and is connected to the gas-making square plate 40; the auxiliary sliding column 45 is in sliding fit with the auxiliary base 46 and the bottom of the gas-making square box 39; After the positioning clamping block 5 contacts the valve body, when the positioning cross plate 7 continues to move, it drives the first T-shaped platform 8 to move. Since the L-shaped rack 13 and the driving gear 34 are initially in meshing connection, when the positioning clamping block 5 and the first T-shaped platform 8 move synchronously, it means that the distance between them remains unchanged, thus having no impact on the rotation of the driving gear 34; when the first T-shaped platform 8 moves closer to the positioning clamping block 5, it means that the distance between them becomes smaller, causing the driving gear 34 to move along the L-shaped rack 13, making the driving gear 34 rotate on its own when moving, and driving the driving disc 37 to rotate under the action of the driving rotating shaft 35, so that the driving cylinder 38 on it will reciprocate in the moment moving chute 44, driving the moment moving cross block 43 to reciprocate at the auxiliary base 46 through the auxiliary sliding column 45, thereby driving the gas-making square plate 40 to reciprocate in the gas-making square box 39; when the gas-making square plate 40 moves towards the top of the gas-making square box 39, the driven valve is in the closed state at this time, and the main valve is opened, enabling the gas in the gas-making square box 39 to enter the bent pipe 41 through the main valve; when the gas-making square plate 40 moves back to its original position, the driven valve is opened and the main valve is closed, allowing the outside gas to be inhaled into the gas-making square box 39 through the driven valve and waiting for the next movement of the gas-making square plate 40 to send the inhaled gas into the bent pipe 41, so that the gas continuously surges into the bent pipe 41 and is sprayed through the nozzle 42 at the clamped valve body. Since the valve body is clamped, the sprayed gas will not affect the assembly state of the valve body, preventing the valve body from changing its position due to the above-mentioned sprayed gas and affecting the machine's assembly operation on the valve body; thus, the produced gas is continuously sprayed towards the valve body, preventing impurities or other particles from adhering to the valve body and affecting the assembly of the angle valve, such as hindering or increasing the handwheel tightening resistance, thereby reducing the limitations of the machine during assembly and improving the assembly effect of the angle valve; at the same time, it avoids the need for staff to manually clean the impurities adhering to the valve body, reducing the work intensity of the staff and improving both the assembly effect and efficiency of the machine.

[0022] The present invention also provides a working method for an automatic angle valve assembly integrated machine, including the following steps: S1. The assembly line 2 continuously conveys the valve body to be assembled above the workbench 4; S2. Operate the pneumatic alignment unit to clamp the valve body to be assembled; S3. The automatic assembler puts the handwheel on the valve body; S4. Adopt a rotational force tightening structure to tighten the handwheel on the valve body, completing the automated assembly process of the angle valve.

[0023] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic angle valve assembly integrated machine, comprising an assembly table; characterized in that: An automatic assembler is provided on the assembly table; the automatic assembler includes an assembly line, which is used to convey the valve body and perform assembly operations on the valve body during the conveying process; the assembly line is installed on the assembly table; Conveyor substrates, several in number and all installed on the transmission assembly line; the valve body is placed on the conveyor substrates; A workbench; the workbench is installed on the assembly table; A pneumatically actuated positioning unit, which is arranged on the workbench and is used to clamp and fix the valve body moving above the workbench; The pneumatically actuated positioning unit includes two positioning clamping blocks, which are respectively located on both sides of the top of the conveyor substrate. Positioning cylinders are installed on the opposite sides of the two positioning clamping blocks. A positioning cross plate is slidably connected to the positioning cylinders. A first T-shaped platform is installed on the positioning cross plate. A rotational tightening structure is arranged on the first T-shaped platform, which is used to tighten the handwheel sleeved on the valve body; Rubber pads, which are respectively connected to the opposite surfaces of the two positioning clamping blocks; Positioning springs, which are sleeved on the positioning cylinders; one end of the positioning spring is fixedly connected to the positioning clamping block, and the other end is fixedly connected to the positioning cross plate; The rotational tightening structure includes a second T-shaped platform, which is connected to the first T-shaped platform; An electric control telescopic device, which is installed on the second T-shaped platform; A third T-shaped platform, which is connected to the output end point of the electric control telescopic device; A limit base, which is installed on the top of the third T-shaped platform; A limit cylinder, which is connected through the side of the limit base close to the valve body, and the two are slidably matched; A limit U-shaped seat, which is installed at one end of the limit cylinder close to the valve body; a rotating wheel is installed in the limit U-shaped seat.

2. The automatic angle valve assembly integrated machine according to claim 1, wherein: It includes contact pieces, which are respectively installed at the opposite surfaces of the positioning cross plate and the positioning clamping block; L-shaped racks, which are respectively connected to the bottoms of the two positioning clamping blocks; the orientations of the two L-shaped racks are opposite; Guide cylinders, which are respectively installed at the opposite surfaces of the two first T-shaped platforms.

3. The automatic angle valve assembly machine according to claim 2, characterized in that: It includes a bidirectional telescopic rod, which is installed at the bottom of the workbench; displacement long plates are installed at both opposite ends of the bidirectional telescopic rod. Displacement cylinders are respectively connected to the opposite surfaces of the two displacement long plates, and they are located on the top of the workbench; A U-shaped pipe, which is installed on the top of the workbench; the opening of the U-shaped pipe is away from the workbench; L-shaped pipes; one ends of the two L-shaped pipes are respectively butted against the two ends of the U-shaped pipe, and the other ends are opposite to each other and both face the valve body; the opposite ends of the two guide cylinders are respectively located inside the opposite end points of the two L-shaped pipes; the guide cylinders and the L-shaped pipes are slidably matched; A guide base, which is installed on the workbench; the end of the L-shaped pipe facing the valve body is fixedly connected to the guide base; A guide spring, which is sleeved on the guide cylinder; one end of the guide spring is fixedly connected to the first T-shaped platform, and the other end is fixedly connected to the guide base.

4. The automatic angle valve assembly machine according to claim 1, wherein: It includes a robotic arm, which is located on the top of the workbench; when one of the conveyor substrates stays above the workbench, the robotic arm sleeves the grabbed handwheel on the valve body on the conveyor substrate; the relative movement of the two positioning clamping blocks is used to clamp the valve body.

5. An automatic angle valve assembly machine according to claim 1, characterized in that: It includes a rotation limit block, which is installed on the side of the third T-shaped platform close to the valve body; the handwheel is located on the movement path of the rotation limit block; the rotation limit block is located behind the positioning clamping block.

6. The automatic angle valve assembly machine according to claim 5, wherein: It includes a limiting spring sleeved on a limiting cylinder; one end of the limiting spring is fixedly connected to a limiting base, and the other end is fixedly connected to a limiting U-shaped seat; The side wall of the handwheel is located at the moving path of the rotating wheel; a friction ring is installed on the outer side wall of the rotating wheel; a power source is installed on the limiting U-shaped seat, and its output end is connected to the rotating wheel; the rotating wheel is located between a rotating limiting block and a positioning clamping block.

7. An automatic angle valve assembly machine according to claim 3, characterized in that: On both sides of the U-shaped pipe, there are installed communicating guiding hollow pipes; the displacement cylinder is located in the guiding hollow pipe, and the two are in sliding fit.

8. The automatic angle valve assembly machine according to claim 1, characterized in that: A gas-making and resistance-reducing mechanism is also provided on the first T-shaped table; the gas-making and resistance-reducing mechanism includes a driving gear located at the bottom of the first T-shaped table; the driving gear is meshed and connected with an L-shaped rack; A driving rotating shaft connected to the driving gear; two driving bases are installed on the first T-shaped table, and the driving gear is located between the two driving bases; both ends of the driving rotating shaft pass through the two driving bases and are connected with driving discs at the same time; driving cylinders are installed on the opposite sides of the two driving discs and close to the edges.

9. An automatic angle valve assembly machine according to claim 8, characterized in that: It includes gas-making square boxes, the quantity and positions of which correspond to the driving discs; the gas-making square boxes are installed on the side of the first T-shaped table; A gas-making square plate is fitted and connected in the gas-making square box, and the two are in sliding fit; the top of the gas-making square box is connected with a main valve, and one end of a bent pipe is installed on the main valve; the other end of the bent pipe faces the valve body and is connected with a spray head; the two sides of the gas-making square box are connected with slave valves, and the installation positions of the slave valves are outside the limit positions of the maximum moving path of the gas-making square plate; A moment-driven cross block is located on the side of the driving disc away from the driving gear; a through moment-driven sliding groove is provided on the side of the moment-driven cross block close to the driving gear, and the driving cylinder is located in the moment-driven sliding groove and the two are in sliding fit; An auxiliary sliding column is installed on the top of the moment-driven cross block; an auxiliary base is installed at the bottom of the gas-making square box, and the end of the auxiliary sliding column away from the moment-driven cross block passes through the auxiliary base and the bottom of the gas-making square box and is connected with the gas-making square plate; the auxiliary sliding column is in sliding fit with the auxiliary base and the bottom of the gas-making square box.

10. A working method of an automatic angle valve assembly machine, using the automatic angle valve assembly machine as described in claim 1, characterized in that, It includes steps: S1. The assembly line continuously conveys the valve body to be assembled above the workbench; S2. Operate the gas-driven positioning unit to clamp the valve body to be assembled; S3. The automatic assembler puts the handwheel on the valve body; S4. Adopt a rotary tightening structure to tighten the handwheel on the valve body to complete the automatic assembly process of the angle valve.

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