A low-voltage circuit breaker movable contact assembly apparatus

Abstract

The application relates to a low-voltage circuit breaker moving contact assembly equipment which comprises a controller, a rack, a pipeline provided with a plurality of carriers, a main body feeding device for feeding a main body in a unified posture to the carriers located at a main body feeding station, a plug assembly device comprising a plug feeding mechanism and two sets of pulling mechanisms, the pulling mechanisms being used for aligning limiting holes on a connected spring with pin shaft holes on the main body, the plug feeding mechanism being provided with two standby stations, and the plug feeding mechanism being used for simultaneously inserting plugs placed in the two standby stations into the limiting holes on the connected spring and the pin shaft holes on the main body, a plug feeding device for feeding the plugs to the standby stations, and a discharging device for taking out the moving contact from the carriers. The application realizes semi-automatic assembly production of the moving contact, and an assembly worker only needs to position and place the contact block on the main body and simultaneously feed the connected spring to a specified position, so that the assembly worker has small work load and low working intensity, and the assembly efficiency of the moving contact is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage circuit breaker technology, and in particular to a low-voltage circuit breaker moving contact assembly device. Background Technology

[0002] The moving contact 10 of the low-voltage circuit breaker Figure 1 and Figure 2 As shown, it includes a main body 11, a contact block 12, two sets of connecting springs 13, and two pins 14. One end of the connecting spring 13 pulls the end of the contact block 12, and the other end is provided with a limiting hole 131. The pins 14 pass through the limiting hole 131 and the pin hole 113 on the main body 11 to achieve locking. After the moving contact 10 is assembled, the connecting spring 13 is in a stretched state to prevent the pin from falling out. When the moving contact 10 is in use, the contact block 12 drives the connecting spring 13 to stretch, and at the same time the contact block 12 is locked in this state. When it is necessary to cut off the circuit breaker, the contact block 12 is released from locking, and under the force of the connecting spring 13, the contact block 12 can move quickly.

[0003] Because the contact block 12 and the mounting cavity 111 on the main body 11 are S-shaped, installing the contact block 12 and the main body 11 is difficult. Additionally, the pin 14 does not easily lock the connecting spring 13 (in the stretched state) onto the main body 11. Currently, the assembly of the moving contact 10 is still done manually. Specifically, when assembling the first set of connecting springs 13, the position and angle of the contact block 12 can be adjusted, making the assembly of the first set of connecting springs 13 relatively easy. However, assembling the second set of connecting springs 13 requires adjusting the position of the contact block 12 and overcoming the force of the first set of connecting springs 13, making assembly difficult, time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a low-voltage circuit breaker moving contact assembly equipment to reduce the difficulty and intensity of assembly workers' work and improve the assembly efficiency of moving contacts.

[0005] To achieve the above objectives, the present invention discloses a low-voltage circuit breaker moving contact assembly device, comprising:

[0006] The frame is provided with a main body loading station, a spring and contact block assembly station, a pin assembly station and an unloading station arranged in sequence.

[0007] The assembly line is equipped with several carriers, and the carriers sequentially pass through the main body loading station, the spring and contact block assembly station, the pin assembly station and the unloading station; the carriers are equipped with a main body positioning component, a contact block positioning component and two sets of spring positioning components, and the spring positioning components are located on both sides of the carrier and are slidably arranged relative to the carrier.

[0008] A main body loading device is installed at the main body loading station and is used to load the main body in a uniform posture onto the carrier located at the main body loading station.

[0009] A pin assembly device includes a pin-raising mechanism and two sets of pulling mechanisms. The pin-raising mechanism is located at the pin assembly station, and the two sets of pulling mechanisms are respectively located on both sides of the pin-raising mechanism. The pulling mechanisms are used to align the limiting hole on the connecting spring with the pin hole on the main body. The pin-raising mechanism has two preparatory stations, which are used to simultaneously insert the pins placed at the two preparatory stations into the limiting hole on the connecting spring and the pin hole on the main body.

[0010] A pin feeding device is located near the pin feeding mechanism and is used to feed pins to the preparation station.

[0011] An unloading device is provided at the unloading station for removing the moving contact from the carrier.

[0012] The controller is connected to the production line, the main feeding device, the pin feeding device, the pin feeding mechanism, the pulling mechanism, and the unloading device.

[0013] Preferably, the main positioning assembly includes at least two positioning pins; the contact block positioning assembly includes two positioning grooves adapted to the shape of the contact block; the spring positioning assembly includes a sliding member and a sleeve rod for mounting the integrated spring, the sliding member is slidably connected to the carrier, the sleeve rod is disposed on the sliding member, and the sleeve rod is provided with a stepped surface for limiting the position of the integrated spring.

[0014] Preferably, the system further includes a carrier clamping mechanism for pushing the spring positioning assembly toward the carrier and a carrier spreading mechanism for pushing the spring positioning assembly away from the carrier. The carrier clamping mechanism is located at the spring and contact block assembly station, and the carrier spreading mechanism is located at the unloading station. Both the carrier clamping mechanism and the carrier spreading mechanism include a carrier lifting cylinder and two carrier horizontal cylinders. The seat of the carrier lifting cylinder is connected to the frame, and the push rod of the carrier lifting cylinder is provided with a mounting plate. The two carrier horizontal cylinders are arranged opposite to each other on the mounting plate, and the push rod of the carrier horizontal cylinder is provided with a baffle. The bottom of the sliding member is provided with an extension that cooperates with the baffle. The carrier lifting cylinder and the carrier horizontal cylinder are connected to a controller.

[0015] Preferably, the main body feeding device includes a main body feeding vibratory feeder, a main body dispensing mechanism, a main body flipping mechanism, and a main body gripping mechanism; the main body dispensing mechanism includes a main body positioning groove, a first detection element for detecting the pin hole on the main body, a second detection element for detecting the outer wall of the main body, and a third detection element for detecting the mounting cavity of the main body. The main body positioning groove is located at the end of the discharge port of the main body feeding vibratory feeder. The first detection element is located at the bottom of the main body positioning groove, and the second and third detection elements are located on the side wall of the main body positioning groove. The first detection element, the second detection element, and the third detection element are connected to a controller.

[0016] The main body flipping mechanism includes a flipping cylinder and a first clamp for holding the main body. The flipping cylinder drives the first clamp to rotate vertically. The flipping cylinder and the first clamp are connected to a controller.

[0017] The main body gripping mechanism includes a main body horizontal movement module, a first gripping component, and a second gripping component. The horizontal movement module drives the first gripping component and the second gripping component to move synchronously. The first gripping component includes a first lifting cylinder and a second clamp for holding the main body. The first lifting cylinder drives the second clamp to move up and down. The second gripping component includes a second lifting cylinder, a rotary cylinder, and a third clamp for holding the main body. The second lifting cylinder drives the rotary cylinder to move up and down, and the rotary cylinder drives the third clamp to rotate horizontally. The main body horizontal movement module, the first lifting cylinder, the second clamp, the second lifting cylinder, the rotary cylinder, and the third clamp are connected to a controller.

[0018] Preferably, the upper pin mechanism includes an upper pin lifting and moving module and a pushing component. The upper pin lifting and moving module drives the pushing component to move up and down. The pushing component includes a pushing cylinder, two punches, and two sets of guides. The punches and guides correspond one-to-one. The pushing cylinder drives the punches to move up and down. The guides are provided with a vertical hole and a material preparation hole. The material preparation hole is a preparatory station. The material preparation hole is connected to the vertical hole, and the pin located in the material preparation hole can transition to the vertical hole. The punches extend into the vertical hole. The upper pin lifting and moving module and the pushing cylinder are connected to a controller.

[0019] Preferably, the pin assembly station further includes a carrier positioning assembly and a main body clamping assembly for pressing the main body onto the carrier. The main body clamping assembly includes a main body clamping cylinder and a main body clamping block. The main body clamping cylinder drives the main body clamping block to move up and down, and the main body clamping block is offset from the guide member. The carrier positioning assembly includes a carrier positioning cylinder and a carrier limiting block. The carrier positioning cylinder drives the carrier limiting block to move up and down, and the carrier limiting block is engaged with the carrier for limiting. The main body clamping cylinder and the carrier positioning cylinder are connected to a controller.

[0020] Preferably, the traction mechanism includes a traction lifting and lowering moving module, a traction horizontal moving module, and a traction assembly. The traction lifting and lowering moving module drives the traction horizontal moving module to move up and down, and the traction horizontal moving module drives the traction assembly to move horizontally. The traction assembly includes a traction plate, a traction cylinder, a traction guide block, two swing arms, and two hooks. The traction guide block is slidably connected to the traction plate and is in a limiting fit with the traction plate. The traction cylinder drives the traction guide block to slide. The swing arms and hooks correspond one-to-one. One end of each swing arm is hinged to one end of each hook. The other end of each hook has a hook portion that cooperates with the limiting hole of the connecting spring. The two hooks cross each other and are hinged to the traction plate. The other end of each swing arm is hinged to the traction guide block, and the hinge points of the two swing arms and the traction guide block coincide. The traction lifting and lowering moving module, the traction horizontal moving module, and the traction cylinder are connected to a controller.

[0021] Preferably, the pin feeding device includes a pin feeding vibratory feeder, a pin dispensing assembly, a first pin detection group, a second pin detection group, and two feeding assemblies. The pin feeding vibratory feeder has dual discharge ports. The pin dispensing assembly includes a pin dispensing cylinder, a pin positioning block, and a pin dispensing block. The pin dispensing cylinder drives the pin positioning block to move up and down. The pin positioning block abuts against the discharge port end of the pin vibratory feeder, and the pin positioning block is provided with a pin positioning hole that mates with the discharge port of the pin vibratory feeder. The first pin detection group is used to detect whether there is a pin in the pin positioning hole. The pin dispensing block is located on the side of the pin positioning block away from the pin feeding vibratory feeder, and the pin dispensing block is provided with a pin positioning hole that mates with the pin positioning hole. The device includes a through-hole; each pin positioning hole corresponds to a feeding assembly, which includes an air blowing pipe and a guide pipe. The air blowing pipe is connected to an external air source, and the guide pipe is connected to the through-hole and the preparatory station. Under normal conditions, the outlet of the pin feeding vibratory plate is connected to one end of the pin positioning hole, and the other end of the pin positioning hole is blocked by the pin distribution block. When the pin distribution cylinder drives the pin positioning block to move down, the pin positioning block blocks the outlet of the pin feeding vibratory plate, and at the same time, the air blowing pipe, the pin positioning hole, and the through-hole are connected. The second pin detection group is used to detect whether a pin passes through the guide pipe. The pin feeding vibratory plate, the first pin detection group, the second pin detection group, and the pin distribution cylinder are connected to a controller.

[0022] Preferably, the assembly line also includes a finished product output belt assembly, the production line being an electric turntable, and the unloading device used to transport the moving contact located at the unloading station onto the finished product output belt assembly; the unloading device includes an unloading horizontal moving module, an unloading cylinder, and an unloading clamp for holding the moving contact, the unloading horizontal moving module driving the unloading cylinder to reciprocate between the unloading station and the feed end of the finished product output belt assembly, and the unloading cylinder driving the unloading clamp to move up and down; the finished product output belt assembly, the unloading horizontal moving module, the unloading cylinder, and the unloading clamp are connected to a controller.

[0023] Preferably, the device further includes a pin detection device for detecting whether the pin is properly assembled and a defective product outlet for discharging defective products. The frame has a detection station located between the pin assembly station and the unloading station. The pin detection device is located at the detection station, and the defective product outlet is located at the unloading station. The pin detection device includes a detection lifting and moving module, a connecting block, two detection rods, two buffer springs, and two proximity switches. The detection lifting and moving module drives the connecting block to move up and down. The detection rods, buffer springs, and proximity switches correspond one-to-one. The detection rods are slidably connected to the connecting block, and the upper end of the detection rod has a retaining ring that cooperates with the limiting position of the connecting block. One end of the buffer spring abuts against the lower end of the detection rod, and the other end abuts against the lower end of the connecting block. The proximity switch is located at the upper end of the connecting block and is used to detect the top end of the detection rod. The detection lifting and moving module and the proximity switches are connected to a controller.

[0024] The present invention has the following beneficial effects:

[0025] This invention enables semi-automatic assembly and production of moving contacts. Assembly workers only need to position the contact block onto the main body and simultaneously load the integrated spring into the designated position. The workload and intensity of the assembly workers are small, effectively improving the assembly efficiency of moving contacts. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the moving contact.

[0027] Figure 2 This is an exploded view of the moving contact.

[0028] Figure 3 This is a schematic diagram of the present invention.

[0029] Figure 4 This is a schematic diagram from another perspective of the present invention.

[0030] Figure 5 This is a schematic diagram of the vehicle.

[0031] Figure 6 This is a diagram showing the main body hidden on the vehicle.

[0032] Figure 7 This is a schematic diagram of the main feeding device (the main feeding vibratory feeder is hidden).

[0033] Figure 8 This is a schematic diagram for detecting the subject's posture.

[0034] Figure 9 This is a schematic diagram of the vehicle clamping mechanism.

[0035] Figure 10 This is a schematic diagram of the vehicle positioning components.

[0036] Figure 11 This is a schematic diagram of the upper pin mechanism and the main clamping assembly.

[0037] Figure 12 A cross-sectional view of the guide component.

[0038] Figure 13 This is a schematic diagram of the traction mechanism.

[0039] Figure 14 This is a schematic diagram of the hook.

[0040] Figure 15 This is a schematic diagram of a pin-feeding device (the pin-feeding vibratory feeder is hidden).

[0041] Figure 16 This is a cross-sectional view of the pin-feeding device (the pin-feeding vibratory feeder is hidden).

[0042] Figure 17 This is a schematic diagram of a pin detection device.

[0043] Figure 18 This is a schematic diagram of the unloading device.

[0044] Explanation of symbols for main components:

[0045] Moving contact 10, body 11, mounting cavity 111, pin hole 112, pin shaft hole 113, contact block 12, integrated spring 13, limiting hole 131, and pin 14.

[0046] Frame 20, finished product output belt assembly 21, defective product outlet 22, electric turntable 23, carrier 24, positioning pin 241, positioning groove 242, sliding part 243, sleeve rod 244, stepped surface 245, extension 246.

[0047] The main body feeding vibratory feeder 31, the main body distributing mechanism 32, the main body positioning groove 321, the first detection element 322, the second detection element 323, the third detection element 324, the main body flipping mechanism 33, the flipping cylinder 331, the first clamp 332, the main body gripping mechanism 34, the main body horizontal moving module 341, the first lifting cylinder 342, the second clamp 343, the second lifting cylinder 344, the rotating cylinder 345, and the third clamp 346.

[0048] Vehicle clamping mechanism 41, vehicle lifting cylinder 411, vehicle leveling cylinder 412, baffle 413, vehicle spreading mechanism 42;

[0049] Main body clamping assembly 51, main body clamping cylinder 511, main body clamping block 512, carrier positioning assembly 52, carrier positioning cylinder 521, carrier limiting block 522, upper pin mechanism 53, upper pin lifting and moving module 531, pushing cylinder 532, punch 533, guide 534, vertical hole 535, material preparation hole 536, pulling mechanism 54, pulling lifting and moving module 541, pulling horizontal moving module 542, pulling plate 543, pulling cylinder 544, pulling guide block 545, swing arm 546, hook 547, hook part 548;

[0050] Pin feeding device 60, pin feeding vibratory plate 61, pin distributing cylinder 621, pin positioning block 622, pin distributing block 623, pin positioning hole 624, through hole 625, first pin detection group 63, second pin detection group 64, air blowing pipe 651, guide pipe 652.

[0051] Pin detection device 70, detection lifting and moving module 71, connecting block 72, detection rod 73, buffer spring 74, proximity switch 75, retaining ring 76;

[0052] Unloading device 80, unloading horizontal moving module 81, unloading cylinder 82, unloading clamp 83. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0054] like Figures 1-18 As shown, this invention discloses an assembly equipment for a low-voltage circuit breaker moving contact 10, which includes: a controller, a frame 20, an assembly line, a main body 11 feeding device, a carrier clamping mechanism 41, a pin 14 assembly device, a pin feeding device 60, a pin detection device 70, a carrier opening mechanism 42, a unloading device 80, a finished product output belt group 21, and a defective product outlet 22. The controller is a PLC.

[0055] The frame 20 is provided with a main body 11 loading station, spring and contact block 12 assembly station, pin 14 assembly station, inspection station and unloading station arranged in sequence.

[0056] The production line is an electric turntable 23, which is controlled by a controller. Several carriers 24 are installed on the electric turntable 23. The electric turntable 23 drives the carriers 24 to pass through the loading station of the main body 11, the spring and contact block 12 assembly station, the pin 14 assembly station, the inspection station, and the unloading station in sequence, and repeats the process.

[0057] The carrier 24 is equipped with a main body 11 positioning assembly, a contact block 12 positioning assembly, and two sets of spring positioning assemblies. The spring positioning assemblies are located on both sides of the carrier 24 and are slidably disposed relative to the carrier 24. Specifically, the carrier 24 has a placement cavity adapted to the shape of the main body 11. The main body 11 has two pin holes 112. The main body 11 positioning assembly includes two positioning pins 241. The bottom of the positioning pins 241 on the main body 11 is fixed to the bottom of the placement cavity, and the top of the positioning pins 241 has a pointed tip to facilitate the insertion of the main body 11. The positioning of the main body 11 can be achieved by the positioning pins 241 cooperating with the pin holes 112. The contact block 12 positioning assembly includes two positioning grooves 242 adapted to the shape (end) of the contact block 12. The contact block 12 is positioned by placing both ends of the contact block 12 into the positioning grooves 242 respectively.

[0058] The spring positioning assembly includes a sliding member 243 and two sleeves 244 for mounting the integrated spring 13. The sliding member 243 is slidably connected to the carrier 24, and the sleeves 244 are locked onto the sliding member 243. A stepped surface 245 is provided on the sleeves 244 to limit the position of the integrated spring 13. Pushing the sliding member 243 allows the sleeves 244 to move relative to the placement cavity. After the main body 11 is positioned, the direction of movement of the two sleeves 244 is consistent with and coincides with the length direction of the integrated spring 13 (referring to the state when the integrated spring 13 is assembled). When loading the integrated spring 13, the sliding member 243 is pulled out, and then the integrated spring 13 is mounted on the sleeves 244. The installation of the contact block 12 and the integrated spring 13 is completed manually on the carrier 24. The manual assembly position is after the loading station of the main body 11, or at or before the spring and contact block 12 assembly station.

[0059] A main body 11 feeding device is installed at the main body 11 feeding station to feed the main bodies 11 in a uniform posture onto the carrier 24 located at the main body 11 feeding station. The main body 11 feeding device includes a main body feeding vibratory feeder 31, a main body distributing mechanism 32, a main body flipping mechanism 33, and a main body gripping mechanism 34. Due to the structural limitations of the main body 11, the main bodies 11 exiting the feeding vibratory feeder will have two postures: top surface upwards and bottom surface upwards. For the bottom surface upwards main body 11, it needs to be vertically flipped 180° and then horizontally rotated 90° to ensure that all main bodies 11 fed to the main body 11 feeding station are in a uniform posture with the top surface upwards. Figure 8 As shown, the left side is the main body 11 with its bottom facing upwards, and the right side is the main body 11 with its top facing upwards.

[0060] The main feeding mechanism 32 is used to determine the posture of the main body 11. It includes a main body positioning groove 321, two first detection elements 322, a second detection element 323, and a third detection element 324. The main body positioning groove 321 is located at the end of the discharge port of the main body feeding vibratory plate 31 to facilitate the gripping of the main body 11. The first detection element 322 is located at the bottom of the main body positioning groove 321 and is used to detect the pin hole 113 on the main body 11. The second detection element 323 and the third detection element 324 are located on the side wall of the main body positioning groove 321. The second detection element 323 is used to detect the outer wall of the main body 11, and the third detection element 324 is used to detect the mounting cavity 111 of the main body 11. The first detection element 322, the second detection element 323, and the third detection element 324 are made of reflective optical fiber, and all three are connected to a controller. Only when the first detection element 322 detects the pin hole 113, the second detection element 323 detects the outer wall of the main body 11, and the third detection element 324 detects the mounting cavity 111 of the main body 11, can the main body 11 be directly transported to the main body 11 loading station. Otherwise, the main body 11 needs to be vertically rotated 180° and then horizontally rotated 90° before it can be transported to the main body 11 loading station, so that the pin hole 112 on the main body 11 can fit into the positioning pin 241 on the carrier 24.

[0061] The main body flipping mechanism 33 includes a flipping cylinder 331 and a first clamp 332 (pneumatic clamp) for holding the main body 11. The flipping cylinder 331 drives the first clamp 332 to flip vertically by 180°. The flipping cylinder 331 and the first clamp 332 are connected to a controller. The main body gripping mechanism 34 includes a main body horizontal movement module 341, a first gripping assembly, and a second gripping assembly. The first gripping assembly includes a first lifting cylinder 342 and a second clamp 343 for holding the main body 11. The first lifting cylinder 342 drives the second clamp 343 to move up and down. The second gripping assembly includes a second lifting cylinder 344, a rotating cylinder 345, and a third clamp 346 for holding the main body 11. The second lifting cylinder 344 drives the rotating cylinder 345 to move up and down, and the rotating cylinder 345 drives the third clamp 346 to rotate horizontally by 90°. The first lifting cylinder 342, the second clamp 343, the second lifting cylinder 344, the rotary cylinder 345, and the third clamp 346 are connected to the controller. The main body horizontal movement module 341 drives the first gripping component and the second gripping component to move synchronously. Specifically, the main body horizontal movement module 341 is a movement module based on cylinders, slide rails, and sliders, and the cylinders are controlled by the controller. The slider is slidably connected to the slide rail, and the cylinders push the slider to move along the length of the slide rail. The first lifting cylinder 342 and the second lifting cylinder 344 are mounted on the slider.

[0062] The carrier clamping mechanism 41 is located at the spring and contact block 12 assembly station (or at the pin 14 assembly station). After the contact block 12 and the connecting spring are manually assembled on the main body 11, the carrier clamping mechanism 41 pushes the sleeve 244, which is loaded with the connecting spring 13, into the mounting cavity 111 of the main body 11 to ensure that the connecting spring 13 is pushed into place, preparing for the subsequent pulling of the connecting spring 13. Similarly, in order to facilitate the unloading of the main body 11, the sleeve 244 needs to be pushed out of the main body 11, so a carrier spreading mechanism 42 is also provided at the unloading station. Both the carrier clamping mechanism 41 and the carrier spreading mechanism 42 include a carrier lifting cylinder 411 and two carrier horizontal cylinders 412. The seat of the carrier lifting cylinder 411 is connected to the frame 20, and the push rod of the carrier lifting cylinder 411 is provided with a mounting plate. The two carrier horizontal cylinders 412 are mounted opposite each other on the mounting plate. A baffle 413 is provided on the push rod of the vehicle horizontal cylinder 412, and an extension 246 that cooperates with the baffle 413 is provided at the bottom of the sliding member 243. The extension 246 is pushed by the baffle 413 to push the sleeve rod 244 toward or out of the main body 11. The vehicle lifting cylinder 411 and the vehicle horizontal cylinder 412 are connected to a controller.

[0063] The pin 14 assembly device includes an upper pin mechanism 53, two sets of pulling mechanisms 54, a main body clamping assembly 51, and a carrier positioning assembly 52. ​​The upper pin mechanism 53, the main body clamping assembly 51, and the carrier positioning assembly 52 are all located at the pin 14 assembly station. The two sets of pulling mechanisms 54 are respectively located on both sides of the upper pin mechanism 53. The pulling mechanisms 54 are used to align the limiting hole 131 on the connecting spring 13 with the pin hole 113 on the main body 11. The upper pin mechanism 53 has two preparatory stations for temporarily storing the pins 14. The upper pin mechanism 53 is used to simultaneously insert the pins 14 placed in the two preparatory stations into the limiting hole 131 on the connecting spring 13 and the pin hole 113 on the main body 11.

[0064] The main clamping assembly 51 includes a main clamping cylinder 511 and a main clamping block 512. The main clamping cylinder 511 drives the main clamping block 512 to move up and down, and the main clamping cylinder 511 is connected to a controller. When the main clamping cylinder 511 is activated, the main clamping block 512 presses the main body 11 onto the carrier 24, preventing displacement during the assembly of the pin 14. Simultaneously, to ensure the positional accuracy of the carrier 24, and thus the positional accuracy of the pin hole 113, a carrier positioning assembly 52 is provided. This assembly includes a carrier positioning cylinder 521 and a carrier limiting block 522. The carrier positioning cylinder 521 drives the carrier limiting block 522 to move up and down, and the carrier limiting block 522 engages with the carrier 24. In this embodiment, the carrier limiting block 522 has a slot adapted to the carrier 24. By positioning the slot on the outer periphery of the carrier 24 from bottom to top, the carrier 24 is positioned.

[0065] The upper pin mechanism 53 includes an upper pin lifting and moving module 531 and a pushing component. The upper pin lifting and moving module 531 drives the pushing component to move up and down. The upper pin lifting and moving module 531 is the same as the main body horizontal moving module 341, and will not be described again. The pushing component includes a pushing cylinder 532, two punches 533, and two sets of guides 534. The pushing cylinder 532 is connected to a controller. The punches 533 and guides 534 are arranged in a one-to-one correspondence. The pushing cylinder 532 drives the punches 533 to move up and down. The guides 534 are provided with a vertical hole 535 and a material preparation hole 536. The punches 533 extend into the vertical hole 535, and the material preparation hole 536 is a preparatory station. The material preparation hole 536 connects to the vertical hole 535. The material preparation hole 536 is designed so that the pin 14 can move from the material preparation hole 536 to the vertical hole 535 without deformation. The diameter of the vertical hole 535 is compatible with the diameter of the pin 14. The main body pressure block 512 and the guide 534 are offset to prevent the guide 534 from colliding with the main body pressure block 512 when the upper pin lifting and moving module 531 drives the pushing assembly to move up and down. Before the pin 14 reaches the material preparation hole 536, the punch 533 blocks the connection between the material preparation hole 536 and the vertical hole 535 to prevent the pin 14 from falling out during non-assembly time. When the guide 534 moves close to the main body 11, the punch 533 retracts, causing the pin 14 to fall from the material preparation hole 536 into the vertical hole 535. Then, the punch 533 continues to press down, pushing the pin 14 into the main body 11.

[0066] The traction mechanism 54 includes a traction lifting and lowering moving module 541, a traction horizontal moving module 542, and a traction assembly. The traction lifting and lowering moving module 541 drives the traction horizontal moving module 542 to move up and down to avoid collisions with the carrier 24. The traction horizontal moving module 542 drives the traction assembly to move horizontally. The traction lifting and lowering moving module 541 is the same as the main horizontal moving module 341 and will not be described again. The traction horizontal moving module 542 is a motor-based moving module, which is a mature existing technology. It generally includes a motor, a slide rail, a lead screw, and a slider. The motor is connected to a controller. The slide rail is set parallel to the slide rail. The slider is slidably connected to the slide rail on one side and threadedly connected to the lead screw on the other side. The motor drives the lead screw to rotate. The traction assembly is mounted on the slider.

[0067] The traction assembly includes a traction plate 543, a traction cylinder 544, a traction guide block 545, two swing arms 546, and two hooks 547. The traction cylinder 544 is connected to a controller. The traction guide block 545 is slidably connected to the traction plate 543, and the traction guide block 545 is in a limiting engagement with the traction plate 543 to restrict the stroke of the guide block. The traction cylinder 544 drives the traction guide block 545 to slide. The swing arms 546 and hooks 547 correspond one-to-one. One end of the swing arm 546 is hinged to one end of the hook 547, and the other end of the hook 547 is provided with a hook portion 548 that engages with the limiting hole 131 of the connecting spring 13. The two hooks cross each other and are hinged to the traction plate 543. The other end of the swing arm 546 is hinged to the traction guide block 545, and the hinge points of the two swing arms 546 and the traction guide block 545 coincide. With this configuration, the hook 548 can open or close synchronously. The horizontal movement module 542 drives the pulling assembly to move horizontally, allowing the hook 548 to extend into the mounting cavity 111 of the main body 11 and align with the limiting hole 131 of the connecting spring 13. The pulling cylinder 544 actuates, allowing the hook 548 to hook onto the limiting hole 131 of the connecting spring 13. Subsequently, the horizontal movement module 542 reverses its movement, stretching the connecting spring 13 so that its limiting hole 131 aligns with the pin hole 113 on the main body 11. At this point, the upper pin mechanism 53 actuates, passing the pin 14 through the limiting hole 131 and the pin hole 113. After the pin 14 is installed, the pulling cylinder 544 reverses its movement, allowing the hook 548 to disengage from the limiting hole 131. The horizontal movement module 542 continues to reverse its movement, causing the hook 548 to disengage from the main body 11. The upper pin mechanism 53 resets, thus completing the assembly of the pin 14. The limiting hole 131 should be able to accommodate both the hook 548 and the pin 14. In addition, the sleeve 244 should avoid the position of the limiting hole 131.

[0068] The pin feeding device 60 is located near and above the pin feeding mechanism 53 to fully utilize the weight of the pin 14 for its movement. The pin feeding device 60 is used to feed the pin 14 to the preparatory station. Specifically, the pin feeding device 60 includes a pin feeding vibratory feeder 61, a pin 14 dispensing assembly, a first pin detection group 63, a second pin detection group 64, and two feeding assemblies. The pin feeding vibratory feeder 61 has dual discharge ports and is connected to a controller.

[0069] The pin 14 feeding assembly includes a pin feeding cylinder 621, a pin positioning block 622, and a pin feeding block 623. The pin feeding cylinder 621 is connected to a controller. The pin feeding cylinder 621 drives the pin positioning block 622 to move up and down. The pin positioning block 622 abuts against the discharge port end of the pin 14 vibratory feeder. The pin positioning block 622 is provided with a pin positioning hole 624 that mates with the discharge port of the pin 14 vibratory feeder. The first pin detection group 63 consists of two sets of reflective optical fibers, each corresponding to a pin positioning hole 624, used to detect whether a pin 14 is in the pin positioning hole 624. The first pin detection group 63 is connected to the controller. The pin feeding block 623 is located on the side of the pin positioning block 622 away from the pin feeding vibratory feeder 61. A certain gap can be reserved between the pin feeding block 623 and the pin positioning block 622 for use by the first pin detection group 63. The pin distribution block 623 is provided with a through hole 625 that mates with the pin positioning hole 624.

[0070] Each pin positioning hole 624 corresponds to a feeding assembly, which includes an air blowing pipe 651 and a guide pipe 652. One end of the air blowing pipe 651 is connected to an external air source, and the guide pipe 652 is connected to the through hole 625 and the preparation hole 536 (preparation station). Under normal conditions, the outlet of the pin feeding vibratory plate 61 is connected to one end of the pin positioning hole 624, while the other end of the pin positioning hole 624 is blocked by the pin distribution block 623 to facilitate discharge control and detection. When the pin distribution cylinder 621 drives the pin positioning block 622 to move downward, the pin positioning block 622 blocks the outlet of the pin feeding vibratory plate 61. At the same time, the air blowing pipe 651, the pin positioning hole 624, and the through hole 625 are connected. By connecting to an external air source, the pin 14 in the pin positioning hole 624 can be blown to the preparation hole 536, thus realizing feeding. The second pin detection group 64 consists of two inductive ring proximity switches, which are sleeved on the non-metallic guide tube 652 to detect whether a pin 14 passes through the guide tube 652. The second pin detection group 64 is connected to the controller. The bend in the guide tube 652 should be able to allow the pin 14 to pass through.

[0071] A pin detection device 70 is installed at the inspection station to detect whether the pins 14 are properly assembled. If either pin 14 is not properly assembled, it is judged as a defective product. The pin detection device 70 includes a detection lifting and moving module 71, a connecting block 72, two detection rods 73, two buffer springs 74, and two proximity switches 75. The detection lifting and moving module 71 drives the connecting block 72 to move up and down. The detection lifting and moving module 71 is the same as the main body horizontal moving module 341, and will not be described again. The detection rods 73, buffer springs 74, and proximity switches 75 correspond one-to-one. The detection rods 73 are slidably connected to the connecting block 72, and the upper end of the detection rods 73 is provided with a retaining ring 76 that cooperates with the connecting block 72 to limit the detection rods 73 and prevent them from falling. The buffer springs 74 are sleeved on the detection rods 73, with one end abutting the lower end of the detection rods 73 and the other end abutting the lower end of the connecting block 72. The proximity switch 75 is located at the upper end of the connecting block 72 and is used to detect the top of the detection rod 73. The proximity switch 75 is connected to the controller. When the detection rod 73 moves down, if there is a pin 14 in the pin hole 113, the lower end of the detection rod 73 will be lifted up by touching the pin 14, so that the top of the detection rod 73 is detected by the proximity switch 75. This indicates that the pin 14 is installed in the pin hole 113. Conversely, if there is no pin 14 in the pin hole 113, the detection rod 73 will not be lifted up, and the proximity switch 75 will not detect the top of the detection rod 73.

[0072] The unloading device 80, the finished product conveyor belt assembly, and the defective product outlet 22 are all located at the unloading station. The finished product output belt assembly 21 is used to output good products, and it can be controlled by a controller or operate independently and continuously. The defective product outlet 22 is used to output defective products. The unloading device 80 is used to remove the moving contact 10 from the carrier 24, and determines whether to place the moving contact 10 into the finished product output belt assembly 21 or the defective product outlet 22 based on the signal fed back by the proximity switch 75. The unloading station, the inlet of the finished product output belt assembly 21, and the defective product outlet 22 are all in a straight line.

[0073] The unloading device 80 includes an unloading horizontal moving module 81, an unloading cylinder 82, and an unloading clamp 83 for holding the moving contact 10. The unloading horizontal moving module 81 drives the unloading cylinder 82 to move back and forth along the aforementioned straight line. The unloading horizontal moving module 81 is the same as the horizontal driving module of the main body 11, and will not be described again. The unloading cylinder 82 drives the unloading clamp 83 to move up and down. The unloading cylinder 82 is connected to a controller.

[0074] The basic workflow of this invention is as follows: the main body 11 is loaded onto the carrier 24 in a uniform posture, then the contact block 12 is manually assembled in sequence and two connecting springs 13 are loaded. Then the connecting springs 13 are pushed into the mounting cavity 111 of the main body 11. After the main body 11 is pressed, the connecting springs 13 are pulled so that the limiting hole 131 is aligned with the pin hole 113. After the pin 14 is assembled, it is tested. Then the sleeve rod 244 is pushed out of the main body 11 so that the main body 11 can be grabbed out of the carrier 24. The moving contact 10 is unloaded according to the test results.

[0075] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A low-voltage circuit breaker moving contact assembly device, characterized in that, include: The frame is provided with a main body loading station, a spring and contact block assembly station, a pin assembly station and an unloading station arranged in sequence. The assembly line is equipped with several carriers, and the carriers sequentially pass through a main body loading station, a spring and contact block assembly station, a pin assembly station and an unloading station; the carriers are equipped with a main body positioning assembly, a contact block positioning assembly and two sets of spring positioning assemblies, and the spring positioning assemblies are located on both sides of the carriers and are slidably arranged relative to the carriers. A main body feeding device is installed at the main body feeding station and is used to feed the main body in a uniform posture to the carrier located at the main body feeding station. A pin assembly device includes a pin-raising mechanism and two sets of pulling mechanisms. The pin-raising mechanism is located at the pin assembly station, and the two sets of pulling mechanisms are respectively located on both sides of the pin-raising mechanism. The pulling mechanisms are used to align the limiting hole on the connecting spring with the pin hole on the main body. The pin-raising mechanism has two preparatory stations, which are used to simultaneously insert the pins placed at the two preparatory stations into the limiting hole on the connecting spring and the pin hole on the main body. A pin feeding device is located near the pin feeding mechanism and is used to feed pins to the preparation station; A discharge device, located at the discharge station, is used to remove the moving contact from the carrier; The controller is connected to the production line, the main feeding device, the pin feeding device, the pin feeding mechanism, the pulling mechanism, and the unloading device.

2. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: The main positioning component includes at least two positioning pins; the contact block positioning component includes two positioning grooves adapted to the shape of the contact block; the spring positioning component includes a sliding member and a sleeve rod for mounting the integrated spring, the sliding member is slidably connected to the carrier, the sleeve rod is disposed on the sliding member, and the sleeve rod is provided with a stepped surface for limiting the position of the integrated spring.

3. The low-voltage circuit breaker moving contact assembly equipment according to claim 2, characterized in that: It also includes a carrier clamping mechanism for pushing the spring positioning assembly toward the carrier and a carrier spreading mechanism for pushing the spring positioning assembly away from the carrier. The carrier clamping mechanism is located at the spring and contact block assembly station, and the carrier spreading mechanism is located at the unloading station. Both the carrier clamping mechanism and the carrier spreading mechanism include a carrier lifting cylinder and two carrier horizontal cylinders. The seat of the carrier lifting cylinder is connected to the frame, and the push rod of the carrier lifting cylinder is provided with a mounting plate. The two carrier horizontal cylinders are arranged opposite to each other on the mounting plate, and the push rod of the carrier horizontal cylinder is provided with a baffle. The bottom of the sliding member is provided with an extension that cooperates with the baffle. The carrier lifting cylinder and the carrier horizontal cylinder are connected to a controller.

4. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: The main body feeding device includes a main body feeding vibratory feeder, a main body dispensing mechanism, a main body flipping mechanism, and a main body gripping mechanism; the main body dispensing mechanism includes a main body positioning groove, a first detection element for detecting the pin hole on the main body, a second detection element for detecting the outer wall of the main body, and a third detection element for detecting the mounting cavity of the main body. The main body positioning groove is located at the end of the discharge port of the main body feeding vibratory feeder, the first detection element is located at the bottom of the main body positioning groove, and the second and third detection elements are located on the side wall of the main body positioning groove; the first detection element, the second detection element, and the third detection element are connected to a controller. The main body flipping mechanism includes a flipping cylinder and a first clamp for holding the main body. The flipping cylinder drives the first clamp to rotate vertically. The flipping cylinder and the first clamp are connected to a controller. The main body gripping mechanism includes a main body horizontal movement module, a first gripping component, and a second gripping component. The horizontal movement module drives the first gripping component and the second gripping component to move synchronously. The first gripping component includes a first lifting cylinder and a second clamp for holding the main body. The first lifting cylinder drives the second clamp to move up and down. The second gripping component includes a second lifting cylinder, a rotary cylinder, and a third clamp for holding the main body. The second lifting cylinder drives the rotary cylinder to move up and down, and the rotary cylinder drives the third clamp to rotate horizontally. The main body horizontal movement module, the first lifting cylinder, the second clamp, the second lifting cylinder, the rotary cylinder, and the third clamp are connected to a controller.

5. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: The upper pin mechanism includes an upper pin lifting and moving module and a pushing component. The upper pin lifting and moving module drives the pushing component to move up and down. The pushing component includes a pushing cylinder, two punches, and two sets of guides. The punches and guides correspond one-to-one. The pushing cylinder drives the punches to move up and down. The guides are provided with a vertical hole and a material preparation hole. The material preparation hole is a preparatory station. The material preparation hole is connected to the vertical hole, and the pin located in the material preparation hole can transition to the vertical hole. The punches extend into the vertical hole. The upper pin lifting and moving module and the pushing cylinder are connected to a controller.

6. The low-voltage circuit breaker moving contact assembly equipment according to claim 5, characterized in that: The pin assembly station is also equipped with a carrier positioning assembly and a main body clamping assembly for pressing the main body onto the carrier. The main body clamping assembly includes a main body clamping cylinder and a main body clamping block. The main body clamping cylinder drives the main body clamping block to move up and down, and the main body clamping block is offset from the guide member. The carrier positioning assembly includes a carrier positioning cylinder and a carrier limiting block. The carrier positioning cylinder drives the carrier limiting block to move up and down, and the carrier limiting block is engaged with the carrier for limiting. The main body clamping cylinder and the carrier positioning cylinder are connected to a controller.

7. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: The traction mechanism includes a traction lifting and lowering moving module, a traction horizontal moving module, and a traction assembly. The traction lifting and lowering moving module drives the traction horizontal moving module to move up and down, and the traction horizontal moving module drives the traction assembly to move horizontally. The traction assembly includes a traction plate, a traction cylinder, a traction guide block, two swing arms, and two hooks. The traction guide block is slidably connected to the traction plate and is in a limiting fit with the traction plate. The traction cylinder drives the traction guide block to slide. The swing arms and hooks are one-to-one. One end of each swing arm is hinged to one end of each hook. The other end of each hook has a hook portion that cooperates with the limiting hole of the connecting spring. The two hooks cross each other and are hinged to the traction plate. The other end of each swing arm is hinged to the traction guide block, and the hinge points of the two swing arms and the traction guide block coincide. The traction lifting and lowering moving module, the traction horizontal moving module, and the traction cylinder are connected to a controller.

8. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: The pin feeding device includes a pin feeding vibratory feeder, a pin dispensing assembly, a first pin detection group, a second pin detection group, and two feeding assemblies. The pin feeding vibratory feeder has dual discharge ports. The pin dispensing assembly includes a pin dispensing cylinder, a pin positioning block, and a pin dispensing block. The pin dispensing cylinder drives the pin positioning block to move up and down. The pin positioning block abuts against the discharge port end of the pin vibratory feeder, and the pin positioning block has a pin positioning hole that mates with the discharge port of the pin vibratory feeder. The first pin detection group is used to detect whether there is a pin in the pin positioning hole. The pin dispensing block is located on the side of the pin positioning block away from the pin feeding vibratory feeder, and the pin dispensing block has a pin positioning hole that mates with the pin positioning hole. Through hole; each of the aforementioned pin positioning holes corresponds to a feeding assembly, the feeding assembly including an air blowing pipe and a guide pipe, the air blowing pipe being connected to an external air source, and the guide pipe being connected to the through hole and a preparatory station; under normal conditions, the outlet of the pin feeding vibratory plate is connected to one end of the pin positioning hole, and the other end of the pin positioning hole is blocked by the pin distribution block; when the pin distribution cylinder drives the pin positioning block to move downward, the pin positioning block blocks the outlet of the pin feeding vibratory plate, and at the same time, the air blowing pipe, the pin positioning hole, and the through hole are connected; the second pin detection group is used to detect whether a pin passes through the guide pipe; the pin feeding vibratory plate, the first pin detection group, the second pin detection group, and the pin distribution cylinder are connected to a controller.

9. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: It also includes a finished product output belt assembly. The production line is an electric turntable. The unloading device is used to transport the moving contact located at the unloading station onto the finished product output belt assembly. The unloading device includes an unloading horizontal moving module, an unloading cylinder, and an unloading clamp for holding the moving contact. The unloading horizontal moving module drives the unloading cylinder to move back and forth between the unloading station and the feed end of the finished product output belt assembly. The unloading cylinder drives the unloading clamp to move up and down. The finished product output belt assembly, the unloading horizontal moving module, the unloading cylinder, and the unloading clamp are connected to a controller.

10. The low-voltage circuit breaker moving contact assembly equipment according to claim 1, characterized in that: It also includes a pin detection device for detecting whether the pin is properly assembled and a defective product outlet for discharging defective products. The frame has a detection station located between the pin assembly station and the unloading station. The pin detection device is located at the detection station, and the defective product outlet is located at the unloading station. The pin detection device includes a detection lifting and moving module, a connecting block, two detection rods, two buffer springs, and two proximity switches. The detection lifting and moving module drives the connecting block to move up and down. The detection rods, buffer springs, and proximity switches correspond one-to-one. The detection rods are slidably connected to the connecting block, and the upper end of the detection rod has a retaining ring that cooperates with the limiting position of the connecting block. One end of the buffer spring abuts against the lower end of the detection rod, and the other end abuts against the lower end of the connecting block. The proximity switch is located at the upper end of the connecting block and is used to detect the top end of the detection rod. The detection lifting and moving module and the proximity switches are connected to a controller.

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