A production line for assembling an ac contactor

Abstract

The application discloses a production line for assembling an alternating current contactor, and has the technical scheme as follows: the production line comprises a workbench, a carrying assembly, a first feeding assembly, a collecting assembly, a first clamping assembly, a second clamping assembly and a screw machine; the workbench is additionally provided with a second feeding assembly, a third feeding assembly and a fourth feeding assembly; the first clamping assembly and the second clamping assembly each comprise a support located at one side of the carrying assembly, a material-moving cylinder positioned on the support, a vertical cylinder positioned on an output shaft of the material-moving cylinder, a plurality of suction nozzles each positioned on an output shaft of the vertical cylinder, a gas claw positioned on the output shaft of the vertical cylinder, a top-falling cylinder located above the suction nozzle and a plurality of top-falling rods each fixedly connected with an output shaft of the top-falling cylinder and capable of penetrating through the corresponding suction nozzle; and the first clamping assembly further comprises a pressing cylinder fixedly connected with the gas claw and capable of pressing a button; thus, the problems of low efficiency and low qualified product rate caused by manual assembly of contact pieces in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of AC contactor processing technology, and more specifically to a production line for assembling AC contactors. Background Technology

[0002] like Figure 1 As shown, a conventional AC contactor includes a base, a button inserted into the base, a pair of Z-shaped contact pieces positioned on the base, three pairs of linear contact pieces, and multiple positioning bolts. The button is elastically connected to three main contact pieces corresponding to the three pairs of linear contact pieces and one auxiliary contact piece corresponding to one pair of Z-shaped contact pieces. Assembling the aforementioned AC contactor requires first inserting the button into the cavity of the base. To insert the Z-shaped contact pieces, the button needs to be pressed down relative to the base, and then one end of the Z-shaped contact piece is inserted into the button so that after the button resets, the auxiliary contact piece contacts the Z-shaped contact piece. To insert the linear contact pieces, it is not necessary to press the button down relative to the base; instead, one end of the linear contact piece is directly inserted into the button. Inserting the button allows the main contact piece to make contact with the linear contact piece when the button is pressed. Finally, bolts are used to position both the Z-type contact piece and the linear contact piece on the base. In existing technologies, the Z-type contact piece and the linear contact piece are often manually installed into the base one by one, and the positioning bolts are screwed in with a screwdriver. Because the space in the base for the contact piece to be inserted is small, manual installation is difficult, and the contact pieces and positioning bolts are easy to fall off, which greatly affects the installation efficiency of the contact pieces and positioning bolts, thus affecting the overall assembly efficiency of the AC contactor. At the same time, workers may forget to press the button due to fatigue accumulated over a long period of time and directly install the Z-type contact piece, which will cause a decrease in the pass rate of the finished AC contactor. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a device that can automatically install contact pieces and positioning bolts onto a base.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a production line for assembling AC contactors, comprising a workbench, a transport component positioned on the workbench for supporting a base, a first feeding component positioned on the workbench for supplying the base to the transport component, a collecting component positioned at one end of the transport component, a first clamping component, a second clamping component, and a screw machine sequentially distributed along the transport direction of the transport component. The workbench is further provided with a second feeding component, a third feeding component, and a fourth feeding component that supply corresponding materials to the first clamping component, the second clamping component, and the screw machine, respectively. The transport component sequentially transports the base to the first clamping component, the second clamping component, and the screw machine, so that the first clamping component, the second clamping component, and the screw machine respectively install Z-type contact pieces, linear contact pieces, and bolts onto the base. Finally, the collecting component collects the assembled products.

[0005] Both the first clamping assembly and the second clamping assembly include a bracket positioned on the worktable and located on one side of the carrier assembly, a transfer cylinder positioned above the carrier assembly and on the bracket, a vertical cylinder positioned on the output shaft of the transfer cylinder, several suction nozzles positioned on the output shaft of the vertical cylinder, a gripper positioned above the carrier assembly and on the output shaft of the vertical cylinder, a drop cylinder positioned above the suction nozzle, and several drop rods fixedly connected to the output shaft of the drop cylinder and capable of passing through the corresponding suction nozzle. The first clamping assembly also includes a pressing cylinder fixedly connected to the gripper and capable of pressing a button. The suction nozzle adsorbs and moves the contact piece to the carrier assembly, so that the drop cylinder can drop the contact piece on the suction nozzle onto the carrier assembly, and the gripper pushes the contact piece into the base.

[0006] As a further improvement of the present invention, the transport assembly includes a first transport line with multiple stations, three pairs of positioning cylinders respectively corresponding to the first clamping assembly, the second clamping assembly and the screw machine, and clamping blocks connected one-to-one to the output shafts of the three pairs of positioning cylinders. The end faces of the three pairs of clamping blocks facing the transport line are provided with positioning grooves that can be inserted into the base. The upper surfaces of the clamping blocks corresponding to the first clamping assembly and the second clamping assembly are provided with slots for accommodating contact pieces and alternately arranged with the positioning grooves.

[0007] As a further improvement of the present invention, each of the clamping blocks corresponding to the first clamping assembly and the second clamping assembly is provided with an alignment groove that allows the pneumatic gripper to partially extend into and communicates with the plate groove one by one.

[0008] As a further improvement of the present invention, the first feeding assembly includes a second transport line located on one side of the transport assembly and used for transporting the base, a frame positioned on the workbench and located on one side of the second transport line, a horizontal cylinder positioned on the frame and arranged horizontally, a transfer cylinder positioned on the output shaft of the horizontal cylinder, and a gripper positioned on the output shaft of the transfer cylinder. The transfer cylinder drives the gripper to approach the second transport line so that the gripper can clamp the base, and the horizontal cylinder drives the transfer cylinder to move the gripper above the first transport line.

[0009] As a further improvement of the present invention, the second, third, and fourth feeding components each include a vibratory feeder, a material channel connected to the vibratory feeder, a material blocking rod positioned above the end of the material channel and capable of being inserted into a through hole on the contact piece, a material blocking cylinder positioned on one side of the material channel and driving the material blocking rod to move up and down, a linear cylinder positioned on the worktable, a rotary cylinder positioned on the output shaft of the linear cylinder, and a material distribution block positioned on the output shaft of the rotary cylinder for receiving the contact piece. Each end of the material distribution block is provided with a set of material distribution grooves for receiving the contact piece. The two sets of material distribution grooves are centrally symmetrical. The material distribution groove at one end of the material distribution block is correspondingly provided to the end of the material channel. By driving the material distribution block to move sequentially through the linear cylinder and the rotary cylinder, both ends of the material distribution block can carry the material moving out from the end of the material channel.

[0010] As a further improvement of the present invention, the second, third and fourth feeding components each include two limiting cylinders located below the two feeding troughs and connected to the output shaft of the rotary cylinder, two sets of limiting rods respectively positioned on the output shafts of the two limiting cylinders, and a monitoring element for monitoring whether the contact pieces in the two feeding troughs are in place. Both sets of limiting rods can penetrate the feeding block. The monitoring element senses the movement of the contact pieces in the feeding trough, causing the limiting cylinder to drive the limiting rods through the feeding block, thereby limiting the material in the feeding trough.

[0011] As a further improvement of the present invention, the second feeding assembly, the third feeding assembly and the fourth feeding assembly also include two buffer members arranged on the same side and fixed relative to the cylinder body of the rotary cylinder and two impact members fixed relative to the output shaft of the rotary cylinder. The two buffer members are located on the rotation path of the two impact members. The rotary cylinder drives the material distribution block to rotate back and forth so that the two impact members take turns contacting the corresponding buffer members.

[0012] As a further improvement of the present invention, it also includes a first detection component and a second detection component distributed along the transport direction of the carrier component. The first detection component and the second detection component are respectively located on both sides of the screw machine. The first detection component and the second detection component each include a lifting cylinder fixedly connected to the worktable, a lifting plate positioned on the output shaft of the lifting cylinder, a plurality of detection rods penetrating the lifting plate and capable of moving up and down relative to the lifting plate, and a photoelectric gate positioned above the lifting plate. The portions of the plurality of detection rods located above the lifting plate are provided with light holes for the light from the photoelectric gate to pass through. The plurality of detection rods are all located above the carrier component.

[0013] As a further improvement of the present invention, the material collection assembly includes a slide rail connected to the end of the transport assembly, a material dispensing cylinder for driving the slide to be offset from the end of the transport assembly, and a material collection box for collecting defective products.

[0014] As a further improvement of the present invention, both the first clamping assembly and the second clamping assembly include two buffers located on both sides of the vertical cylinder and capable of contacting the top of the vertical cylinder.

[0015] The beneficial effects of this invention are as follows: The first feeding component supplies the base to the transport component; the second, third, and fourth feeding components supply the corresponding materials to the first clamping component, the second clamping component, and the screw machine, respectively; the transport component transports the base sequentially to the first clamping component, the second clamping component, and the screw machine, so that the first clamping component, the second clamping component, and the screw machine respectively install the Z-shaped contact piece, the linear contact piece, and the bolt onto the base; finally, the collecting component collects the assembled products. Compared with the existing technology that uses manual assembly, this design can effectively improve the installation efficiency of the contact pieces, reduce the difficulty of assembly, and realize the automation of assembly. At the same time, it indirectly improves the qualification rate of finished products and effectively reduces the labor and material costs of enterprises. Attached Figure Description

[0016] Figure 1 This is a three-dimensional exploded view of an existing AC contactor;

[0017] Figure 2 This is a perspective view of the present utility model;

[0018] Figure 3 This is a perspective view of the transport component and the material collection component assembled together in this utility model;

[0019] Figure 4 This is a perspective view of the first clamping assembly in this utility model;

[0020] Figure 5 This is a perspective view of the second clamping assembly in this utility model;

[0021] Figure 6 This is a schematic diagram showing the disassembly of the clamping block and the base corresponding to the first clamping assembly in this utility model;

[0022] Figure 7 This is a schematic diagram showing the disassembly of the clamping block and the base corresponding to the second clamping assembly in this utility model;

[0023] Figure 8 This is a perspective view of the second feeding component in this utility model;

[0024] Figure 9 for Figure 8 Partial 3D view;

[0025] Figure 10 This is a perspective view of the third feeding component in this utility model when the vibratory feeder is removed;

[0026] Figure 11This is a perspective view of the fourth feeding component in this utility model when the vibratory feeder is removed;

[0027] Figure 12 This is a perspective view of the first detection component in this utility model;

[0028] Figure 13 This is a perspective view of the first feeding component in this utility model.

[0029] Reference numerals: 1. Workbench; 11. Support; 12. Transfer cylinder; 13. Vertical cylinder; 14. Suction nozzle; 15. Pneumatic gripper; 16. Drop cylinder; 17. Drop rod; 18. Pressing cylinder; 19. Buffer; 2. Transport assembly; 21. First transport line; 22. Positioning cylinder; 23. Clamping block; 24. Positioning groove; 25. Plate groove; 26. Alignment groove; 3. First loading assembly; 31. Second transport line; 32. Frame; 33. Horizontal cylinder; 34. Transfer cylinder; 35. Gripper; 4. Collecting assembly; 41. Slide rail; 42. Distributing cylinder; 43. 5. Material collection box; 6. First clamping assembly; 7. Second clamping assembly; 8. Second feeding assembly; 9. Monitoring component; 10. Vibratory feeder; 11. Material channel; 12. Material blocking rod; 13. Material blocking cylinder; 14. Linear cylinder; 15. Rotary cylinder; 16. Material separating block; 17. Material separating trough; 18. Limiting cylinder; 19. Limiting rod; 10. Third feeding assembly; 11. Buffer component; 12. Impact component; 10. Fourth feeding assembly; a1. First detection assembly; a2. Lifting cylinder; a3. Lifting plate; a4. Detection rod; a5. Photoelectric gate; a6. Light hole; b. Second detection assembly. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0031] Reference Figures 1 to 13 As shown, a production line for assembling AC contactors according to this embodiment includes a workbench 1, a transport component 2 positioned on the workbench 1 and used to support the base, a first feeding component 3 positioned on the workbench 1 and used to supply the base to the transport component 2, a material collection component 4 positioned at one end of the transport component 2, a first clamping component 5, a second clamping component 6 and a screw machine arranged sequentially along the transport direction of the transport component 2. The workbench 1 is also provided with a second feeding component 7, a third feeding component 8 and a fourth feeding component 9 that supply corresponding materials to the first clamping component 5, the second clamping component 6 and the screw machine respectively. The transport component 2, the first feeding component 3, the material collection component 4, the first clamping component 5, the second clamping component 6, the screw machine, the second feeding component 7, the third feeding component 8 and the fourth feeding component 9 can all be electrically connected to the same controller. The screw machine adopts an existing eight-axis screw machine.

[0032] Specific reference Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the transport assembly 2 includes a multi-station first transport line 21, three pairs of positioning cylinders 22, and three pairs of clamping blocks 23. The first transport line 21 adopts existing technology and includes multiple stations for supporting the base, guide rails located on both sides of the multiple stations and capable of supporting the base, lifting cylinders for driving the multiple stations to move up and down, and translation cylinders for driving the cylinders to move horizontally. Under the combined action of the lifting cylinders and translation cylinders, the trajectories of the multiple stations in the vertical plane are all rectangular. The cylinder bodies of the three pairs of positioning cylinders 22 are all positioned on the worktable 1 by plates. The two guide rails are located between each pair of positioning cylinders 22. The three pairs of clamping blocks 23 are respectively fixedly connected to the three pairs of positioning cylinders 22. On the output shaft of the cylinder 22, the station for assembling Z-type contact pieces, the station for assembling linear contact pieces, and the station for screwing are respectively set with three pairs of clamping blocks 23. Each pair of clamping blocks 23 has a positioning groove 24 that can be inserted into the base on the facing end face. The two clamping blocks 23 that correspond to the first clamping assembly 5 each have a slot 25 for accommodating Z-type contact pieces. The two clamping blocks 23 that correspond to the second clamping assembly 6 each have three slots 25 for accommodating linear contact pieces. One end of the slot 25 extends between adjacent positioning grooves 24 and the spacing between adjacent positioning grooves 24 is adapted to the width of the contact piece it carries.

[0033] Specific reference Figure 2 and Figure 13 As shown, the first feeding assembly 3 includes a second conveyor line 31, a frame 32, a horizontal cylinder 33, a transfer cylinder 34, and a gripper 35. Both the horizontal cylinder 33 and the transfer cylinder 34 are linear cylinders. The second conveyor line 31 is a conventional conveyor belt in the prior art. The second conveyor line 31 is parallel to the first conveyor line 21, and the end of the second conveyor line 31 is located on one side of the beginning of the first conveyor line 21. The frame 32 is positioned on the workbench 1 and is located on the straight line of the first conveyor line 21. The horizontal cylinder 33 is positioned on the frame 32 and its height is higher than that of the second conveyor line 31. The cylinder body of the transfer cylinder 34 is fixedly connected to the output shaft of the horizontal cylinder 33, and the output shaft of the transfer cylinder 34 is vertically downward. The gripper 35 is positioned on the output shaft of the transfer cylinder 34.

[0034] Specific reference Figure 2 and Figure 3 As shown, the material collection assembly 4 includes a chute 41 that connects to the end of the first transport line 21, and a container with an opening located below the end of the chute 41 can be placed on one side of the workbench 1.

[0035] Specific reference Figure 4 and Figure 5As shown, both the first clamping assembly 5 and the second clamping assembly 6 include a bracket 11, a transfer cylinder 12, a vertical cylinder 13, several suction nozzles 14, a gripper 15, a top-drop cylinder 16, and a number of top-drop rods 17 equal to the number of suction nozzles 14. The first clamping assembly 5 also includes a pressing cylinder 18. The first clamping assembly 5 has two suction nozzles 14 and two top-drop rods 17, while the second clamping assembly 6 has six suction nozzles and six top-drop rods. The suction nozzles 14 can attract by using a built-in magnet that can attract contact plates or by connecting an external air pump through an air pipe. The bracket 11 is positioned on one side of the first transport line 21. A horizontally placed transfer cylinder 12 is fixedly connected to the end of the bracket 11 that is higher than the first transport line 21. The transfer cylinder 12 is a linear cylinder and is perpendicular to the conveying direction of the first transport line 21. The cylinder body of the vertical cylinder 13 is positioned on the transfer cylinder 16. On the output shaft of 2, the vertical cylinder 13 is a linear cylinder with its output shaft pointing vertically downward. A connecting frame is fixedly connected to the output shaft of the vertical cylinder 13. The top-drop cylinder 16 and the gripper 15 are positioned on the connecting frame along the length of the transfer cylinder 12. The gripper 15 is an SMC thin gripper, and the output shaft of the gripper 15 is provided with push feet that are the same number as the contact pieces and can push the contact pieces to move. A pressing cylinder 18 is fixedly connected to one side of the gripper 15 of the first clamping assembly 5. The pressing cylinder 18 is a linear cylinder with its output shaft pointing vertically downward. The suction nozzle 14 is fixedly connected to the connecting frame and located below the top-drop cylinder 16. A top-drop rod 17 that corresponds one-to-one with the suction nozzle 14 and can pass through the suction nozzle 14 is fixedly connected to the output shaft of the top-drop cylinder 16. The height of the vertically downward end of the suction nozzle 14 is the same as the height of the lowest end of the push foot of the gripper 15.

[0036] Specific reference Figures 8 to 11As shown, the second feeding assembly 7, the third feeding assembly 8, and the fourth feeding assembly 9 each include a vibratory feeder 71, a material channel 72, a material blocking rod 73, a material blocking cylinder 74, a linear cylinder 75, a rotary cylinder 76, and a material distribution block 77. The vibratory feeder 71 is positioned on the worktable 1. One end of the material channel 72 is connected to the output end of the vibratory feeder 71. A linear vibrator positioned on the worktable 1 is fixedly connected below the material channel 72. The material channel 72 has grooves for material transportation. The second feeding assembly 7, the third feeding assembly 8, and the fourth feeding assembly 9 have one, three, and four grooves, respectively. The material blocking cylinder 74 is a linear cylinder and is set perpendicular to the upper surface of the worktable 1. The material blocking cylinder 74 is located on one side of the material channel 72. The material blocking rod 73 is fixedly connected to the output shaft of the material blocking cylinder 74 and is located above the material channel 72. The number of material blocking rods 73 is the same as the number of grooves on the material channel 72 and they are set one-to-one. Cylinder 75 is positioned on the worktable. The output direction of linear cylinder 75 is parallel to the length direction of material channel 72. The cylinder body of rotary cylinder 76 is positioned on the output shaft of linear cylinder 75. The output shaft of rotary cylinder 76 is vertically upward relative to the upper surface of worktable 1. A support frame is fixedly connected to rotary cylinder 76. Material distribution block 77 is fixedly connected to the top of support frame. The center of material distribution block 77 is coaxial with the output shaft of rotary cylinder 76. A set of material distribution grooves 771 is provided on both ends of material distribution block 77. The two sets of material distribution grooves 771 are centrally symmetrical. The shape and structure of material distribution grooves 771 match the shape of the material to be transported. The material distribution groove 771 on one end of material distribution block 77 is correspondingly set to the end of material channel 72. The number of each set of material distribution grooves 771 is the same as the number of grooves on material channel 72. The material distribution grooves 771 on both ends of material distribution block 77 are correspondingly set to several pairs of suction nozzles 14.

[0037] To facilitate observation of the contact plate's installation position, except... Figure 1 The bases in the attached diagrams do not show buttons, and at the same time... Figure 2 The overall structure of the workbench 1 is omitted, leaving only a support plate. In the initial state, the materials transported by the second feeding component 7, the third feeding component 8, and the fourth feeding component 9 are Z-shaped contact pieces, straight contact pieces, and bolts with washers, respectively. The pneumatic gripper 15 and the top-drop cylinder 16 are located directly above the first conveyor line 21 and the material distribution block 77, respectively. Multiple top-drop rods 17 on the output shaft of the top-drop cylinder 16 are directly opposite multiple suction nozzles 14. One end of the material blocking rod 73 extends into the groove of the material channel 72 and touches the material in the groove. The material distribution groove 771 on one end of the material distribution block 77 is directly opposite the material channel 72. The assembly steps are as follows:

[0038] Step 1: Manually place the base equipped with the button onto the second transport line 31. The base moves along the second transport line 31 to its end and is stopped by a stop at the end of the line, causing it to slide relative to the line. Then, the horizontal cylinder 33 drives the transfer cylinder 34 to move above the second transport line 31. The transfer cylinder 34 then drives the gripper 35 to move downwards into position. The gripper 35 activates and clamps the base at the end of the second transport line 31. Subsequently, the transfer cylinder 34 and the horizontal cylinder 33 move in sequence... Upon reset, gripper 35 moves the base to above the beginning of the first conveyor line 21. Finally, transfer cylinder 34 moves gripper 35 downward, releasing the base and allowing it to fall onto the first conveyor line 21. During this process, the second feeding assembly 7, the third feeding assembly 8, and the fourth feeding assembly 9 are all operating. Linear cylinder 75 drives rotary cylinder 76 and the material distribution block 77 to move towards the end of the material channel 72 until the material distribution block 77 touches the end of the material channel 72. Then, the material distribution groove 771 on one end of the material distribution block 77 and the material channel 72... The grooves are connected, and then the material-blocking cylinder 74 drives the material-blocking rod 73 to move upward, causing the material-blocking rod 73 to disengage from the material channel 72. The linear vibrator drives the material channel 72 to vibrate, causing the material at the end of the material channel 72 to enter the distribution trough 771. The vibrating plate then supplies material to the material channel 72. The material-blocking cylinder 74 can be controlled by a timer. After a predetermined time is reached, the material-blocking cylinder 74 drives the material-blocking rod 73 to move downward again, so that the material-blocking rod 73 can prevent the contact piece at the end of the material channel 72 from continuing to move. The linear cylinder 75 drives the distribution block 77 away from the material channel. The end of 72 moves, and then the rotary cylinder 76 drives the material distribution block 77 to rotate 180° so that the material distribution groove 771 at the other end of the material distribution block 77 corresponds to the groove in the material channel 72. Repeat the operation of the aforementioned material blocking cylinder 74, and the material distribution grooves 771 at both ends of the material distribution block 77 will be filled with material. The linear cylinder 75 drives the rotary cylinder 76 to reset. The suction nozzles 14 of the first clamping assembly 5 and the second clamping assembly 6 correspond one-to-one with the multiple material distribution grooves 771. The probe of the screw machine used to absorb the bolts corresponds one-to-one with the corresponding multiple material distribution grooves 771.

[0039] The second step is that the first transport line 21 moves the base to the position directly below the pneumatic gripper 15 of the first clamping assembly 5 and stops. Then, the two corresponding clamping blocks 23 move towards each other under the drive of the positioning cylinder 22. The base is partially inserted into the positioning groove 24 until the two clamping blocks 23 clamp the base together.

[0040] Third step: The vertical cylinder 13 of the first clamping assembly 5 drives the top-drop cylinder 16 and the gripper 15 to move downwards together until the suction nozzle 14 contacts and holds the corresponding Z-shaped contact piece. The push feet of the gripper 15 are all aligned with one end of the corresponding slot 25. The vertical cylinder 13 drives the top-drop cylinder 16 and the gripper 15 to reset. Then, the material transfer cylinder 12 drives the vertical cylinder 13 to move horizontally until the top-drop cylinder 16 moves to directly above the base and the two suction nozzles 14 are respectively clamped to the two slots. The vertical cylinder 13 drives the drop cylinder 16 to move downward to a height close to the plate slot 25 on block 23. The output shaft of the drop cylinder 16 moves downward, and the drop rod 17 on the output shaft of the drop cylinder 16 passes through the corresponding suction nozzle 14 and drops the contact piece at the end of the suction nozzle 14. The contact piece falls into the corresponding plate slot 25. Then the vertical cylinder 13 drives the drop cylinder 16 to reset, and the transfer cylinder 12 drives the vertical cylinder 13 to reset. The air gripper 15 is located directly above the base.

[0041] Step 4: The vertical cylinder 13 of the first clamping assembly 5 drives the gripper 15 to move downward until the push feet of the gripper 15 are directly opposite the slot 25. The output shaft of the pressing cylinder 38 moves downward and presses down the button in the base. Then the gripper 15 drives the two sets of push feet to move towards each other so that the pair of Z-shaped contact pieces are inserted into the base. After the straight contact pieces are inserted into place, the pressing cylinder 38 is reset first, and the button in the base is reset under the action of the spring. Then the vertical cylinder 13 drives the gripper 15 to reset, and the corresponding two positioning cylinders 22 drive the clamping block 23 to move away from the base. Finally, the first transport line 21 is started and drives the base with the Z-shaped contact pieces to move directly below the gripper 15 of the second clamping assembly 6.

[0042] Fifth step: The two positioning cylinders 22 corresponding to the second clamping component 6 and the second clamping component 6 repeat the above steps two to four. The second clamping component 6 does not press the cylinder 18, so there is no step of pressing the button. After inserting the three pairs of linear contact pieces into the base, the base moves to the screw machine.

[0043] Step 6: The two positioning cylinders 22 corresponding to the screw machine drive the clamping block 23 to clamp the base together. Then the screw machine picks up eight bolts and moves to the base. Next, the eight output shafts pass the eight screws through the eight contact pieces and screw them into the base. The two Z-shaped contact pieces and the six linear contact pieces are fixed on the base. After the screw machine is reset, the corresponding two positioning cylinders 22 are reset.

[0044] Step 7: The first transport line 21 continues to move the assembled bases, repeating steps 1 to 6 above to complete the assembly of the subsequent bases. As the bases accumulate at the end of the first transport line 21, the last base will be squeezed into the slide 41 and fall down along the slide 41, and the container will be collected.

[0045] Compared to existing technologies that rely on manual assembly, this design effectively improves the installation efficiency of contact pieces and bolts, reduces the difficulty of assembly, automates the assembly process, and indirectly increases the pass rate of finished products, thereby effectively reducing the company's labor and material costs.

[0046] As one specific implementation method of the improvement, refer to Figure 6 and Figure 7 As shown, the clamping blocks 23 corresponding to the first clamping assembly 5 and the second clamping assembly 6 are also provided with alignment grooves 26, which allow the pneumatic gripper 15 to partially extend into and communicate with the plate grooves 25 one by one. The width of the alignment grooves 26 is similar to the thickness of the push feet on the pneumatic gripper 15. After the pneumatic gripper 15 moves downward into place with the vertical cylinder 13, the push feet on the pneumatic gripper 15 are partially located in the alignment grooves 26. The push feet will move along the alignment grooves 26 and push the contact pieces into the base. This design can avoid the resistance encountered by the contact pieces when they are inserted into the base, which will cause the push feet to bend and deform. The alignment grooves 26 indirectly improve the structural stability of the push feet, and also ensure that the direction of the push force on the contact pieces remains unchanged, which makes it easier for the contact pieces to be inserted into the base more effectively.

[0047] As one specific implementation method of the improvement, refer to Figures 8 to 11As shown, the second feeding assembly 7, the third feeding assembly 8, and the fourth feeding assembly 9 each include two limit cylinders 78, two sets of limit rods 79, and a monitoring element 70. The limit rods 79 can all pass through the corresponding material distribution block 77. The two limit cylinders 78 are positioned on the support frame on the output shaft of the rotary cylinder 76. The two limit cylinders 78 are respectively located below both ends of the material distribution block 77. The number of each set of limit rods 79 is the same as the number of corresponding material distribution slots 771 and they are set one-to-one. The two sets of limit rods 79 are fixedly connected to the output shafts of the two limit cylinders 78. The second feeding assembly 7 and the third feeding assembly 8... The diameter of the limiting rod 79 is smaller than the inner diameter of the through hole on the contact piece. After the limiting rod 79 passes through the material distribution block 77, the end of the limiting rod 79 passes through the corresponding contact piece. The limiting rod 79 of the fourth feeding assembly 9 passes through the material distribution block 77, and the end of the limiting rod 79 can prevent the bolt in the material distribution groove 771 from falling out of the material distribution groove 771. Regarding the number and position of the monitoring element 70, the second feeding assembly 7 has two monitoring elements 70 and uses proximity switches. The two proximity switches are respectively positioned on one side of the two material distribution grooves 771. When the Z-shaped contact piece enters the material distribution groove 771 and the proximity switch detects the Z-shaped contact piece, The proximity switch sends a feedback signal to the controller, which then sends instructions to the material-blocking cylinder 74 and the linear cylinder 75 to perform the operations described in the first step of the first embodiment. The third feeding assembly 8 and the fourth feeding assembly 9 have three and four monitoring elements 70 respectively, both using fiber optic probes. The fiber optic probes are positioned side-by-side on the corresponding material channels 72, with the probes facing the material distribution groove 771 that connects to the groove within the material channel 72. Once the linear contact piece or bolt has moved into the material distribution groove 771, the fiber optic probe sends a feedback signal to the controller based on the change in optical distance. The controller then sends instructions to the material-blocking cylinder 74 and the linear cylinder 75 to perform the operations described in the first embodiment. The first step of the first embodiment is designed to further improve the smoothness and intelligence between processes. After the monitoring component 70 detects that the material has moved into place, the limiting rods 79 on the output shaft of the limiting cylinder 78 pass through the material distribution block 77 and limit the material in the corresponding material distribution groove 771. When the subsequent suction nozzle 14 attracts the contact piece, the limiting cylinder 78 drives the limiting rods 79 to reset. The design of the limiting cylinder 78 and the limiting rods 79 can assist the positioning of the contact piece in the material distribution groove 771 and avoid the phenomenon that the contact piece flies out of the material distribution groove 771 due to inertia when the material distribution block 77 rotates to a stop.

[0048] As one specific implementation method of the improvement, refer to Figures 8 to 11As shown, the second feeding assembly 7, the third feeding assembly 8, and the fourth feeding assembly 9 each include two buffers 81 and two impactors 82. The buffers 81 can be RB0805 hydraulic buffers. One end of each of the two L-shaped blocks is fixedly connected to the cylinder body of the rotary cylinder 76. Both L-shaped blocks are located on the same side of the line where the two limit cylinders 78 are located. The two buffers 81 are respectively positioned on the two L-shaped blocks. The two impactors 82 are fixed relative to the output shaft of the rotary cylinder 76. The two impactors 82 are respectively located on the line where the two limit cylinders 78 are located. On both sides of the straight line, the two buffers 81 are located on the circumference of the two impactors 82. In the initial state, one of the impactors 82 is in contact with the corresponding buffer 81. After the output shaft of the rotary cylinder 76 rotates 180°, the other impactor 82 is in contact with the other buffer 81. This design can provide a limiting effect for the rotation of the rotary cylinder 76 to ensure that the angle of rotation of the material distribution block 77 is 180° each time. At the same time, the two buffers 81 help to reduce the impact of the impactors 82, so that the action of the material distribution block 77 rotating into place tends to be gentle.

[0049] As one specific implementation method of the improvement, refer to Figure 2 and Figure 12As shown, it also includes a first detection component a and a second detection component b distributed along the transport direction of the transport component 2. The first detection component a and the second detection component b are located on both sides of the screw machine. Both the first detection component a and the second detection component b include a lifting cylinder a1, a lifting plate a2, eight detection rods a3, and a photoelectric gate a4. The lifting cylinder a1 is positioned on the workbench 1 and on one side of the first transport line 21. The lifting plate a2 is fixedly connected to the output shaft of the lifting cylinder a1, and one end of the lifting plate a2 extends above the first transport line 21. The detection rods a3 are all confined to the lifting plate a2 and can move up and down relative to the lifting plate a2. The eight detection rods a3 of both the first detection component a and the second detection component b are... The three detectors are arranged in two rows and correspond to the contact plates and bolts on the base. There are two sets of photoelectric gates a4, each corresponding to one of the two rows of detection rods a3. Each set of photoelectric gates a4 includes a light source and a receiver to receive the light source signal. There are four detection rods a3 between each light source and receiver. The portion of each detection rod a3 above the lifting plate a2 has a light hole a5 for the light from the photoelectric gate a4 to pass through. Initially, all eight detection rods a3 remain stationary relative to the lifting plate a2 under gravity. The line of the light holes a5 on the parallel detection rods a3 is misaligned with the light emitted from the corresponding photoelectric gate a4, so the receiver of the photoelectric gate a4 cannot receive the light from the light source. Taking the first detection component a as an example, when equipped with… When the base of the contact piece moves below the lifting plate a2, the lifting cylinder a1 drives the lifting plate a2 downward. The ends of the eight detection rods a3 located below the lifting plate a2 respectively contact the tops of the eight contact pieces. As the lifting plate a2 continues to move downward into place, all eight detection rods a3 will move upward relative to the lifting plate a2, so that the four side-by-side light holes a5 and photogate a4 are all on the same straight line. If the light from the photogate a4 can pass through the four light holes a5, it means that the four side-by-side contact pieces on the base are all installed in place. If both sets of photogates a4 are passable, then all eight contact pieces are installed in place and are considered a qualified product. If at least one light hole a5 is not on the same straight line as the photogate a4, the light... If the light from switch a4 cannot pass through all the corresponding detection rods a3, it indicates that there are missing contact pieces on the base, which is a defective product. As the lifting cylinder a1 resets, the eight detection rods a3 return to their initial state under the action of gravity. For defective products, the subsequent bolt installation will not be carried out to save subsequent processes and to collect them in categories. For qualified products, the bolt installation operation will be carried out. The principle of the second detection component b is the same as that of the first detection component b. It is used to detect whether the bolts on the base are installed. This design can detect the base, avoid subsequent useless operations earlier, save raw material waste, reduce enterprise costs, and improve the pass rate of the finished products assembled later.

[0050] Further optimization, refer to Figure 3As shown, the collection component 4 includes a slide 41 connected to the end of the transport component 2, a distributing cylinder 42 for driving the slide 42 to be offset relative to the end of the transport component 2, and a collection box 43 for collecting defective products. When the first detection component a or the second detection component b detects a defective product, the distributing cylinder 42 drives the slide 41 to be offset from the end of the transport component 2, and the defective product will fall directly into the collection box 43. Then the distributing cylinder 42 drives the slide 41 to reconnect with the end of the transport component 2. This design can realize the separate collection of qualified and unqualified products, and avoid the phenomenon of unqualified products being mixed with qualified products and flowing into the market.

[0051] As one specific implementation method of the improvement, refer to Figure 4 and Figure 5 As shown, both the first clamping assembly 5 and the second clamping assembly 6 include two buffers 19 located on both sides of the vertical cylinder 13 and capable of contacting the vertical cylinder 13. The buffers 19 are Airtac buffers. When the transfer cylinder 12 drives the vertical cylinder 13 to move back and forth horizontally, the two buffers 19 not only act as limiters but also provide buffering for the vertical cylinder 13, reducing the collision between the vertical cylinder 13 and the bracket 11.

[0052] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A production line for assembling AC contactors, characterized in that: The assembly includes a workbench (1), a transport component (2) positioned on the workbench (1) and used to support the base, a first feeding component (3) positioned on the workbench (1) and used to supply the base to the transport component (2), a collection component (4) positioned at one end of the transport component (2), a first clamping component (5), a second clamping component (6) and a screw machine arranged sequentially along the transport direction of the transport component (2). The workbench (1) is also provided with a second feeding component (7), a third feeding component (8) and a fourth feeding component (9) that supply the first clamping component (5), the second clamping component (6) and the screw machine with corresponding materials respectively. The transport component (2) transports the base sequentially to the first clamping component (5), the second clamping component (6) and the screw machine so that the first clamping component (5), the second clamping component (6) and the screw machine install Z-type contact pieces, straight contact pieces and bolts on the base respectively. Finally, the collection component (4) collects the assembled products. The first clamping assembly (5) and the second clamping assembly (6) both include a bracket (11) positioned on the worktable (1) and located on one side of the transport assembly (2), a transfer cylinder (12) positioned above the transport assembly (2) and on the bracket (11), a vertical cylinder (13) positioned on the output shaft of the transfer cylinder (12), several suction nozzles (14) all positioned on the output shaft of the vertical cylinders (13), a gripper (15) positioned above the transport assembly (2) and on the output shaft of the vertical cylinders (13), and a gripper (15) located on the suction nozzle (16). 14) The top drop cylinder (16) and several drop rods (17) are fixedly connected to the output shaft of the top drop cylinder (16) and can pass through the corresponding suction nozzle (14). The first clamping assembly (5) also includes a pressing cylinder (18) fixedly connected to the air gripper (15) and capable of squeezing the button in the base. The contact piece is attracted and moved to the carrier assembly (2) through the suction nozzle (14) so ​​that the top drop cylinder (16) can drop the contact piece on the suction nozzle (14) onto the carrier assembly (2). The contact piece is pushed into the base through the air gripper (15). The transport component (2) includes a first transport line (21) with multiple stations, three pairs of positioning cylinders (22) respectively corresponding to the first clamping component (5), the second clamping component (6) and the screw machine, and clamping blocks (23) connected one-to-one to the output shafts of the three pairs of positioning cylinders (22). The end faces of the three pairs of clamping blocks (23) facing the first transport line (21) are provided with positioning grooves (24) that can be inserted into the base. The upper surface of the clamping blocks (23) corresponding to the first clamping component (5) and the second clamping component (6) is provided with plate grooves (25) for accommodating contact plates and alternately arranged with the positioning grooves (24).

2. The production line for assembling AC contactors according to claim 1, characterized in that: Each clamping block (23) corresponding to the first clamping assembly (5) and the second clamping assembly (6) is also provided with an alignment groove (26) that allows the pneumatic gripper (15) to partially extend into and communicates with the plate groove (25).

3. A production line for assembling AC contactors according to claim 1 or 2, characterized in that: The first feeding assembly (3) includes a second transport line (31) located on one side of the transport assembly (2) and used for transporting the base, a frame (32) positioned on the workbench (1) and located on one side of the second transport line (31), a horizontal cylinder (33) positioned on the frame (32) and arranged horizontally, a transfer cylinder (34) positioned on the output shaft of the horizontal cylinder (33) and a gripper (35) positioned on the output shaft of the transfer cylinder (34). The transfer cylinder (34) drives the gripper (35) to approach the second transport line (31) so that the gripper (35) can clamp the base. The horizontal cylinder (33) drives the transfer cylinder (34) to move the gripper (35) above the first transport line (21).

4. A production line for assembling AC contactors according to claim 1 or 2, characterized in that: The second feeding assembly (7), the third feeding assembly (8), and the fourth feeding assembly (9) each include a vibratory feeder (71), a feed channel (72) connected to the vibratory feeder (71), a blocking rod (73) positioned above the end of the feed channel (72) and capable of being inserted into the through hole on the contact plate, a blocking cylinder (74) positioned on one side of the feed channel (72) and driving the blocking rod (73) to move up and down, a linear cylinder (75) positioned on the worktable (1), a rotary cylinder (76) positioned on the output shaft of the linear cylinder (75), and a rotary cylinder (76) positioned on the output shaft of the rotary cylinder (75). The cylinder (76) output shaft has a material distribution block (77) for receiving the contact piece. Both ends of the material distribution block (77) are provided with a set of material distribution grooves (771) for receiving the contact piece. The two sets of material distribution grooves (771) are centrally symmetrical. The material distribution groove (771) at one end of the material distribution block (77) is correspondingly set to the end of the material channel (72). The material distribution block (77) is driven to move by the linear cylinder (75) and the rotary cylinder (76) in turn, so that both ends of the material distribution block (77) can carry the material moved out from the end of the material channel (72).

5. A production line for assembling AC contactors according to claim 4, characterized in that: The second feeding assembly (7), the third feeding assembly (8) and the fourth feeding assembly (9) also include two limiting cylinders (78) located below the two feeding troughs (771) and connected to the output shaft of the rotary cylinder (76), two sets of limiting rods (79) positioned on the output shafts of the two limiting cylinders (78) respectively, and a monitoring element (70) for monitoring whether the contact pieces in the two feeding troughs (771) are in place. Both sets of limiting rods (79) can penetrate the feeding block (77). The monitoring element (70) senses the contact pieces moving into place in the feeding trough (771), so that the limiting cylinder (78) drives the limiting rod (79) to pass through the feeding block (77) and can limit the material in the feeding trough (771).

6. A production line for assembling AC contactors according to claim 4, characterized in that: The second feeding assembly (7), the third feeding assembly (8) and the fourth feeding assembly (9) each include two buffers (81) arranged on the same side and fixed relative to the cylinder body of the rotary cylinder (76) and two impacts (82) fixed relative to the output shaft of the rotary cylinder (76). The two buffers (81) are located on the rotation path of the two impacts (82). The rotary cylinder (76) drives the material distribution block (77) to rotate back and forth so that the two impacts (82) take turns contacting the corresponding buffers (81).

7. A production line for assembling AC contactors according to claim 1 or 2, characterized in that: It also includes a first detection component (a) and a second detection component (b) distributed along the transport direction of the transport component (2). The first detection component (a) and the second detection component (b) are located on both sides of the screw machine. The first detection component (a) and the second detection component (b) each include a lifting cylinder (a1) fixedly connected to the worktable (1), a lifting plate (a2) positioned on the output shaft of the lifting cylinder (a1), several detection rods (a3) ​​that pass through the lifting plate (a2) and can move up and down relative to the lifting plate (a2), and a photoelectric gate (a4) positioned above the lifting plate (a2). The portions of the several detection rods (a3) ​​above the lifting plate (a2) are provided with light holes (a5) for the light from the photoelectric gate (a4) to pass through. The several detection rods (a3) ​​are all located above the transport component (2).

8. A production line for assembling AC contactors according to claim 7, characterized in that: The collecting assembly (4) includes a slide (41) connected to the end of the transport assembly (2), a distributing cylinder (42) for driving the slide (41) to be offset relative to the end of the transport assembly (2), and a collecting box (43) for collecting defective products.

9. A production line for assembling AC contactors according to claim 1 or 2, characterized in that: The first clamping assembly (5) and the second clamping assembly (6) each include two buffers (19) located on both sides of the vertical cylinder (13) and capable of contacting the top of the vertical cylinder (13).

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