Automatic screw turning device for circuit breaker wiring frame

Abstract

An automatic screw turning device for a circuit breaker wiring frame comprises an equipment base, a wiring frame feeding device, a wiring board feeding device, a clamping device, a screw turning device body and a controller, and the wiring frame feeding device comprises a first rotary vibration feeding disc, a first flat vibration track, a feeding track and a driving part; the wiring board feeding device comprises a second rotary vibration feeding disc and a second flat vibration rail, and the clamping device comprises a first sliding base, a first electric clamping jaw, a first rotary motor, a first hydraulic air cylinder, a second sliding base, a third sliding base, a second electric clamping jaw, a second hydraulic air cylinder and a third hydraulic air cylinder. The screw turning device comprises a third rotary vibration feeding disc, a third flat vibration rail, a feeding pipe, a proximity switch, a first screw turning machine, a second screw turning machine, a third screw turning machine, a fourth hydraulic air cylinder, a fifth hydraulic air cylinder and a sixth hydraulic air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker assembly equipment, in particular to an automatic screw tightening device for a circuit breaker wiring frame. Background Art

[0002] The wiring frame and the wiring board are important components in the thermal resistor. The wiring frame needs to be fixed together with the wiring board by screws for subsequent assembly. The assembly steps are: first, the wiring frame is fed to a fixed station, and then the screws are fed into the screw tightening machine, and then the wiring board to be processed is clamped to the corresponding position of the wiring frame, and then the screws are screwed into the wiring frame by the screw tightening machine, so that the relative position of the wiring frame and the wiring board is fixed. However, the screw tightening device in the prior art has the following problems: First, since the relative position between the wiring frame and the screw needs to be completely accurate when tightening the screws, if there is a slight deviation, the screw cannot be screwed into the wiring frame or the screw is easily screwed crooked. Therefore, the feeding position requirements for the wiring frame are very high; second, although some screws can be screwed into the wiring frame, they cannot be screwed out of the wiring frame, which affects subsequent use, and the screw tightening machine used for the wiring frame in the prior art does not have the function of verifying whether the screw can be withdrawn from the wiring frame. Summary of the invention

[0003] In order to solve the above problems, the utility model provides an automatic screw tightening device for a circuit breaker wiring frame, which can improve feeding accuracy, ensure that screws can be smoothly screwed into the wiring frame, and verify whether there are assembly errors.

[0004] The technical solution of the utility model: an automatic screw tightening device for a circuit breaker wiring frame, comprising an equipment base, a wiring frame feeding device connected to the equipment base, a wiring board feeding device connected to the equipment base, a clamping device connected to the equipment base, a screw tightening device connected to the equipment base and a controller, the wiring frame feeding device comprising a first rotating vibration feeding disk connected to the equipment base, a first flat vibration track connected to the first rotating vibration feeding disk, a feeding track connected to the first flat vibration track and a driving member for driving the wiring frame to move on the feeding track, the wiring board feeding device comprising a second rotating vibration feeding disk and a second flat vibration feeding disk connected to the second rotating vibration feeding disk The clamping device includes a first sliding base slidably connected to the equipment base, a first electric clamping claw connected to the first sliding base, a first rotating motor for driving the first electric clamping claw to rotate, a first hydraulic cylinder for driving the first sliding base to move in a horizontal direction, a second sliding base slidably connected to the equipment base, a third sliding base slidably connected to the second sliding base, a second electric clamping claw connected to the third sliding base, a second hydraulic cylinder for driving the second sliding base to move in a horizontal direction, and a third hydraulic cylinder for driving the third sliding base to move in a horizontal direction, wherein the movement direction of the third sliding base is respectively the same as that of the first sliding base. The movement directions of the base and the second sliding base are perpendicular. When the first electric clamping claw and the second electric clamping claw are both in the initial state, the positions of the first electric clamping claw and the second electric clamping claw correspond to the end positions of the feed track and the second flat vibration track respectively. The screw tightening device includes a third rotating vibration feed disk connected to the equipment base, a third flat vibration track connected to the third rotating vibration feed disk, a feed pipe connected to the end of the third flat vibration track, a proximity switch connected to the feed pipe, a first screw tightening machine connected to the equipment base, a second screw tightening machine connected to the equipment base, a third screw tightening machine connected to the equipment base, and a screw tightening machine for driving the first screw tightening machine to move along the vertical direction. A fourth hydraulic cylinder for driving the second screw machine to move in the vertical direction, a fifth hydraulic cylinder for driving the second screw machine to move in the vertical direction, and a sixth hydraulic cylinder for driving the third screw machine to move in the vertical direction, one end of the feed pipe is connected to the first screw machine, and the first screw machine, the second screw machine and the third screw machine are respectively located directly above the feed track, and the controller is respectively electrically connected to the first screw machine, the second screw machine, the third screw machine, the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the fifth hydraulic cylinder, the sixth hydraulic cylinder, the first rotating motor, the first electric clamping jaw, the second electric clamping jaw, the proximity switch and the driving member.

[0005] According to the technical solution, first, the wiring frame to be processed is fed to the first flat vibration track through the first rotating vibration feed disk, and then the wiring frame is moved into the feed track through the vibration force on the first flat vibration track, and then the wiring frame is moved to the bottom of the first screw tightening machine through the driving member, and at the same time, the third rotating vibration feed disk is controlled by the controller to feed the screws to be processed into the third flat vibration track, and then the screws are moved into the feed pipe through the third flat vibration track, and then the wiring switch is controlled to be turned on by the controller, so that the screws are fed from the feed pipe into the first screw tightening machine, and then the screws are fed into the first screw tightening machine through the first screw tightening machine. The screw machine screws the screws on the wiring frame, and then controls the driving part through the controller to push the wiring frame with the screws installed to the bottom of the second screw machine. Then, the second screw machine rotates the screws on the wiring frame in the opposite direction to make it withdraw from a part of the wiring frame. If the screw can be withdrawn smoothly, it means that the screw and the wiring frame are matched correctly. If the screw is stuck in the wiring frame and cannot be withdrawn, the staff will manually take it out, and then control the driving part to push the wiring frame to the bottom of the third screw machine. At the same time, the second rotating vibration feed tray feeds the wiring board to be processed to the second flat vibration feed tray. The wiring board to be processed is transmitted to the end of the second flat vibration track by the vibration force on the second flat vibration track, and then the second hydraulic cylinder and the third hydraulic cylinder are controlled by the controller to drive the second sliding base and the third sliding base to move respectively, so that the position of the second clamping claw corresponds to the wiring board on the end of the second flat vibration track and clamps it, and then the second sliding base and the third sliding base are moved so that the position of the second clamping claw corresponds to the end of the feed track, and the wiring board is clamped in the wiring frame directly below the third screw tightening machine, and then the third screw tightening machine is controlled by the controller to tighten the screws. , so that the relative positions of the wiring frame and the wiring board are fixed, and then the controller controls the first hydraulic cylinder to drive the first sliding base to move toward the position of the wiring frame, so that the first clamping claw clamps the wiring frame and brings it out of the feed track, and then the controller controls the first rotating motor to rotate a certain angle so that it corresponds to the position of the subsequent workstation to be processed. Compared with the traditional screw-tightening device, the process of withdrawing and screwing in again when screwing the screw is added, which plays a role in verifying whether there is an assembly error between the screw and the wiring frame. At the same time, the equipment has a very high degree of automation and can greatly reduce labor costs.

[0006] Further configuration of the utility model: the first flat vibration track and the feed track are arranged in parallel, the feed track is provided with a feed port, the feed port is adapted to the shape and size of the wiring frame to be processed, the driving member includes a first push plate slidably connected to the equipment base, a second push plate slidably connected to the equipment base, a seventh hydraulic cylinder for driving the first push plate to move along the Y-axis direction, an eighth hydraulic cylinder for driving the second push plate to move along the X-axis direction, a fourth sliding base slidably connected to the equipment base, and a fifth sliding base slidably connected to the fourth sliding base , a third push plate fixedly connected to the fifth sliding base, a ninth hydraulic cylinder for driving the fourth sliding base to move along the X-axis direction, and a tenth hydraulic cylinder for driving the fifth sliding base to move along the Y-axis direction. The third push plate is provided with a plurality of limiting grooves, and the limiting grooves are adapted to the shape and size of the wiring frame to be processed. The positions of the limiting grooves are respectively located directly below the first screw tightening machine, the second screw tightening machine and the third screw tightening machine. The controller is electrically connected to the seventh hydraulic cylinder, the eighth hydraulic cylinder, the ninth hydraulic cylinder and the tenth hydraulic cylinder, respectively.

[0007] By adopting the above technical scheme, when the wiring frame moves to the end of the first flat vibration track, the controller controls the seventh hydraulic cylinder to drive the first push plate to push the wiring frame to the feed track, and then controls the eighth hydraulic cylinder to drive the second push plate along the X-axis direction to move the wiring frame along the axial direction of the feed track. When the wiring frame moves to the position corresponding to the upper limit groove of the third push plate, the controller controls the tenth hydraulic cylinder to drive the fifth sliding base to move along the Y-axis direction, so that the wiring frame is enclosed in the closed space surrounded by the third push plate and the inner wall of the feed track, and then controls the ninth hydraulic cylinder to drive the fourth sliding base to move along the X-axis direction, so that the wiring frame is driven by the third push plate to move respectively through the first screw tightening machine, the second screw tightening machine and the third screw tightening machine directly below. Since the limiting groove is adapted to the shape and size of the wiring frame to be processed, the feeding position of the wiring frame can be further guaranteed to be accurate, thereby improving the assembly accuracy.

[0008] Further configuration of the utility model: the distance between the first screw tightening machine and the second screw tightening machine is the same as the distance between the second screw tightening machine and the third screw tightening machine, the distance between two adjacent limiting grooves is half of the distance between the first screw tightening machine and the second screw tightening machine, and a first photoelectric sensor and a second photoelectric sensor are provided on the base of the equipment, and the first photoelectric sensor and the second photoelectric sensor are respectively located in the middle position between the first screw tightening machine and the second screw tightening machine and in the middle position between the second screw tightening machine and the third screw tightening machine, and the first photoelectric sensor and the second photoelectric sensor are respectively electrically connected to the controller.

[0009] By adopting the above technical scheme, since the first photoelectric sensor and the second photoelectric sensor are respectively located in the middle position between the first screw machine and the second screw machine and in the middle position between the second screw machine and the third screw machine, the movement distance of the fourth sliding base each time can be set to half the size of the distance between the first screw machine and the second screw machine. Each time the fourth sliding base moves, there will be positions of the wiring frame corresponding to the first photoelectric sensor and the second photoelectric sensor respectively. When the first photoelectric sensor and the second photoelectric sensor sense that the wiring frame is in place, the first photoelectric sensor and the second photoelectric sensor respectively send electrical signals to the controller. The controller controls the ninth hydraulic cylinder to drive the fourth sliding base to move, and then performs the next step through the second screw machine and the third screw machine. This can further improve the assembly accuracy. Further configuration of the utility model: the feed track is provided with a ejection port, a ejection plate slidably connected to the ejection port and an eleventh hydraulic cylinder for driving the ejection plate to move in a vertical direction; when the third push plate moves a certain distance and the limiting groove is located directly below the first screw tightening machine, the wiring frame located on the limiting groove is close to the side of the second screw tightening machine and fits with the ejection plate, and the controller is electrically connected to the eleventh hydraulic cylinder.

[0010] By adopting the above technical scheme, when the wiring frame to be processed moves to the bottom of the first screw tightening machine, the ninth hydraulic cylinder and the tenth hydraulic cylinder are first controlled by the controller to respectively drive the fourth sliding base and the fifth sliding base to move, so that the wiring frame is confined in the limiting groove, and then the eleventh hydraulic cylinder is controlled by the controller to move vertically upward, so that the top plate fits with one side of the wiring frame, further ensuring the position stability of the wiring frame, and then the first screw tightening machine is controlled by the controller to screw the screws into the wiring frame, which can further ensure that the screws can be accurately screwed into the wiring frame, thereby improving the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 The present invention is a schematic structural diagram of an automatic screw tightening device for a circuit breaker wiring frame according to a specific embodiment of the present invention.

[0012] Attached Figure 2 The present invention is a structural schematic diagram of the connection state of a feed track and a first flat vibration track in an automatic screw tightening device for a circuit breaker wiring frame according to a specific embodiment of the present invention.

[0013] 1-equipment base, 2-wiring frame feeding device, 3-wiring board feeding device, 4-clamping device, 5-screwing device, 6-controller, 7-first rotary vibration feeding plate, 8-first flat vibration track, 9-feeding track, 10-driving member, 11-second rotary vibration feeding plate, 12-second flat vibration track, 13-first sliding base, 14-first electric clamping claw, 15-first rotating motor, 16-first hydraulic cylinder, 17-second sliding base, 18-third sliding base, 19-second electric clamping claw, 20-second hydraulic cylinder, 21-third hydraulic cylinder, 22-third rotary vibration feeding plate, 23-third flat vibration track, 24-feed pipe, 25-proximity switch, 26-first screw tightening machine, 27-second screw tightening machine, 28-third screw tightening machine, 29-fourth hydraulic cylinder, 30-fifth hydraulic cylinder, 31-sixth hydraulic cylinder, 32-feed port, 33-first push plate, 34-second push plate, 35-seventh hydraulic cylinder, 36-eighth hydraulic cylinder, 37-fourth sliding base, 38-fifth sliding base, 39-third push plate, 40-ninth hydraulic cylinder, 41-tenth hydraulic cylinder, 42-limiting groove, 43-first photoelectric sensor, 44-second photoelectric sensor, 45-top port, 46-top plate, 47-eleventh hydraulic cylinder. DETAILED DESCRIPTION

[0014] like Figure 1-2As shown, an automatic screw tightening device for a circuit breaker wiring frame comprises an equipment base 1, a wiring frame feeding device 2 connected to the equipment base 1, a wiring board feeding device 3 connected to the equipment base 1, a clamping device 4 connected to the equipment base 1, a screw tightening device 5 connected to the equipment base 1 and a controller 6, wherein the wiring frame feeding device 2 comprises a first rotating vibration feeding disk 7 connected to the equipment base 1, a first horizontal vibration track 8 connected to the first rotating vibration feeding disk 7, a feeding track 9 connected to the first horizontal vibration track 8 and a driving member 10 for driving the wiring frame to move on the feeding track 9, and the wiring board feeding device 3 comprises a second rotating vibration feeding disk 11 and a first horizontal vibration feeding track 8 connected to the first horizontal vibration feeding track 8. The second horizontal vibration track 12 of the second rotary vibration feed plate 11, the clamping device 4 includes a first sliding base 13 slidably connected to the equipment base 1, a first electric clamping claw 14 connected to the first sliding base 13, a first rotating motor 15 for driving the first electric clamping claw 14 to rotate, a first hydraulic cylinder 16 for driving the first sliding base 13 to move in a horizontal direction, a second sliding base 17 slidably connected to the equipment base 1, a third sliding base 18 slidably connected to the second sliding base 17, a second electric clamping claw 19 connected to the third sliding base 18, a second hydraulic cylinder 20 for driving the second sliding base 17 to move in a horizontal direction, and a second electric clamping claw 19 connected to the third sliding base 18. The third hydraulic cylinder 21 is used to drive the third sliding base 18 to move in the horizontal direction. The movement direction of the third sliding base 18 is perpendicular to the movement direction of the first sliding base 13 and the second sliding base 17. When the first electric clamping claw 14 and the second electric clamping claw 19 are both in the initial state, the positions of the first electric clamping claw 14 and the second electric clamping claw 19 correspond to the end positions of the feed track 9 and the second flat vibration track 12 respectively. The screwing device 5 includes a third rotating vibration feed tray 22 connected to the equipment base 1, a third flat vibration track 23 connected to the third rotating vibration feed tray 22, and a feeder connected to the end of the third flat vibration track 23. A feed pipe 24, a proximity switch 25 connected to the feed pipe 24, a first screwing machine 26 connected to the equipment base 1, a second screwing machine 27 connected to the equipment base 1, a third screwing machine 28 connected to the equipment base 1, a fourth hydraulic cylinder 29 for driving the first screwing machine 26 to move in a vertical direction, a fifth hydraulic cylinder 30 for driving the second screwing machine 27 to move in a vertical direction, and a sixth hydraulic cylinder 31 for driving the third screwing machine 28 to move in a vertical direction. One end of the feed pipe 24 is connected to the first screwing machine 26. The first screwing machine 26, the second screwing machine 27 and the third screwing machine 28 are respectively located directly above the feed track 9.The controller 6 is electrically connected to the first screwing machine 26, the second screwing machine 27, the third screwing machine 28, the first hydraulic cylinder 16, the second hydraulic cylinder 20, the third hydraulic cylinder 21, the fourth hydraulic cylinder 29, the fifth hydraulic cylinder 30, the sixth hydraulic cylinder 31, the first rotary motor 15, the first electric clamping claw 14, the second electric clamping claw 19, the proximity switch 25 and the driving member 10.

[0015] First, the wiring frame to be processed is fed to the first flat vibration track 8 through the first rotary vibration feed disc 7, and then the wiring frame is moved to the feed track 9 through the vibration force on the first flat vibration track 8, and then the wiring frame is moved to the bottom of the first screw tightening machine 26 through the driving member 10. At the same time, the third rotary vibration feed disc 22 is controlled by the controller 6 to feed the screws to be processed to the third flat vibration track 23, and then the screws are moved to the feed pipe 24 through the third flat vibration track 23, and then the wiring switch is controlled by the controller 6 to be turned on, so that the screws are fed from the feed pipe 24 to the first screw tightening machine 26, and then the screws are fed to the first screw tightening machine 26 through the first screw tightening machine 2 6 screws the screws on the wiring frame, and then the controller 6 controls the driving member 10 to push the wiring frame with the screws installed to the bottom of the second screw tightening machine 27, and then the second screw tightening machine 27 rotates the screws screwed on the wiring frame in the opposite direction to make it withdraw from a part of the wiring frame. If the screw can be withdrawn smoothly, it means that the screw and the wiring frame are properly matched. If the screw is stuck in the wiring frame and cannot be withdrawn, the staff manually removes it, and then controls the driving member 10 to push the wiring frame to the bottom of the third screw tightening machine 28. At the same time, the second rotating vibration feed tray 11 feeds the wiring board to be processed onto the second flat vibration track 12 , the wiring board to be processed is transmitted to the end of the second flat vibration track 12 by the vibration force on the second flat vibration track 12, and then the second hydraulic cylinder 20 and the third hydraulic cylinder 21 are controlled by the controller 6 to drive the second sliding base 17 and the third sliding base 18 to move respectively, so that the position of the second clamping claw corresponds to the wiring board on the end of the second flat vibration track 12 and clamps it, and then the second sliding base 17 and the third sliding base 18 are moved so that the position of the second clamping claw corresponds to the end of the feed track 9, and the wiring board is clamped in the wiring frame located directly below the third screw tightening machine 28, and then the third screw tightening machine 28 is controlled by the controller 6. 8 tightens the screws to fix the relative positions of the wiring frame and the wiring board, and then controls the first hydraulic cylinder 16 through the controller 6 to drive the first sliding base 13 to move toward the position of the wiring frame, so that the first clamping claw clamps the wiring frame and brings it out of the feed track 9, and then controls the first rotating motor 15 through the controller 6 to rotate a certain angle so that it corresponds to the position of the subsequent workstation to be processed. Compared with the traditional screwing device 5, the process of withdrawing and screwing in again when screwing the screw is added, which plays a role in verifying whether there is an assembly error between the screw and the wiring frame. At the same time, the equipment has a very high degree of automation and can greatly reduce labor costs.

[0016] The first parallel vibration track 8 and the feed track 9 are arranged in parallel, and a feed port 32 is provided on the feed track 9, and the feed port 32 is adapted to the shape and size of the wiring frame to be processed. The driving member 10 includes a first push plate 33 slidably connected to the equipment base 1, a second push plate 34 slidably connected to the equipment base 1, a seventh hydraulic cylinder 35 for driving the first push plate 33 to move along the Y-axis direction, an eighth hydraulic cylinder 36 for driving the second push plate 34 to move along the X-axis direction, a fourth sliding base 37 slidably connected to the equipment base 1, a fifth sliding base 38 slidably connected to the fourth sliding base 37, and a fifth sliding base 39 fixedly connected to the fifth sliding base. The third push plate 39 of the movable base 38, the ninth hydraulic cylinder 40 for driving the fourth sliding base 37 to move along the X-axis direction and the tenth hydraulic cylinder 41 for driving the fifth sliding base 38 to move along the Y-axis direction, the third push plate 39 is provided with a plurality of limiting grooves 42, the limiting grooves 42 are adapted to the shape and size of the wiring frame to be processed, the positions of the limiting grooves 42 are respectively located directly below the first screw tightening machine 26, the second screw tightening machine 27 and the third screw tightening machine 28, and the controller 6 is electrically connected to the seventh hydraulic cylinder 35, the eighth hydraulic cylinder 36, the ninth hydraulic cylinder 40 and the tenth hydraulic cylinder 41 respectively.

[0017] When the wiring frame moves to the end of the first flat vibration track 8, the controller 6 controls the seventh hydraulic cylinder 35 to drive the first push plate 33 to push the wiring frame to the feed track 9, and then controls the eighth hydraulic cylinder 36 to drive the second push plate 34 along the X-axis direction to move the wiring frame along the axial direction of the feed track 9. When the wiring frame moves to the position corresponding to the upper limit groove 42 on the third push plate 39, the controller 6 controls the tenth hydraulic cylinder 41 to drive the fifth sliding base 38 to move along the Y-axis direction, so that the wiring frame is enclosed in the closed space surrounded by the third push plate 39 and the inner wall of the feed track 9, and then controls the ninth hydraulic cylinder 40 to drive the fourth sliding base 37 to move along the X-axis direction, so that the wiring frame is driven by the third push plate 39 to move respectively through the first screw tightening machine 26, the second screw tightening machine 27 and the third screw tightening machine directly below. Since the limiting groove 42 is adapted to the shape and size of the wiring frame to be processed, the feeding position of the wiring frame can be further guaranteed to be accurate, thereby improving the assembly accuracy.

[0018] The distance between the first screw machine 26 and the second screw machine 27 is the same as the distance between the second screw machine 27 and the third screw machine 28. The distance between two adjacent limiting grooves 42 is half of the distance between the first screw machine 26 and the second screw machine 27. A first photoelectric sensor 43 and a second photoelectric sensor 44 are provided on the equipment base 1. The first photoelectric sensor 43 and the second photoelectric sensor 44 are respectively located in the middle position between the first screw machine 26 and the second screw machine 27 and in the middle position between the second screw machine 27 and the third screw machine 28. The first photoelectric sensor 43 and the second photoelectric sensor 44 are respectively electrically connected to the controller 6.

[0019] Since the first photoelectric sensor 43 and the second photoelectric sensor 44 are respectively located in the middle position between the first screw machine 26 and the second screw machine 27 and in the middle position between the second screw machine 27 and the third screw machine 28, the movement distance of the fourth sliding base 37 each time can be set to half the size of the distance between the first screw machine 26 and the second screw machine 27. Each time the fourth sliding base 37 moves, there will be a position of the wiring frame corresponding to the first photoelectric sensor 43 and the second photoelectric sensor 44 respectively. When the first photoelectric sensor 43 and the second photoelectric sensor 44 sense that the wiring frame is in place, the first photoelectric sensor 43 and the second photoelectric sensor 44 respectively send electrical signals to the controller 6. The controller 6 controls the ninth hydraulic cylinder 40 to drive the fourth sliding base 37 to move, and then performs the next step through the second screw machine 27 and the third screw machine 28. This can further improve the assembly accuracy.

[0020] The feed track 9 is provided with a ejection port 45, a ejection plate 46 slidably connected to the ejection port 45, and an eleventh hydraulic cylinder 47 for driving the ejection plate 46 to move in a vertical direction. When the third push plate 39 moves a certain distance and the limiting groove 42 is located directly below the first screw tightening machine 26, the wiring frame located on the limiting groove 42 is close to the side of the second screw tightening machine 27 and fits with the ejection plate 46, and the controller 6 is electrically connected to the eleventh hydraulic cylinder 47.

[0021] When the wiring frame to be processed moves to the bottom of the first screw tightening machine 26, the ninth hydraulic cylinder 40 and the tenth hydraulic cylinder 41 are first controlled by the controller 6 to respectively drive the fourth sliding base 37 and the fifth sliding base 38 to move, so that the wiring frame is confined in the limiting groove 42, and then the eleventh hydraulic cylinder 47 is controlled by the controller 6 to move vertically upward, so that the ejection plate 46 fits against one side of the wiring frame to further ensure the position stability of the wiring frame, and then the first screw tightening machine 26 is controlled by the controller 6 to screw the screws into the wiring frame, which can further ensure that the screws can be accurately screwed into the wiring frame, thereby improving the assembly accuracy.

Claims

1. An automatic screw tightening device for a circuit breaker wiring frame, characterized in that: The invention comprises an equipment base, a wiring frame feeding device connected to the equipment base, a wiring board feeding device connected to the equipment base, a clamping device connected to the equipment base, a screwing device connected to the equipment base and a controller, wherein the wiring frame feeding device comprises a first rotating vibration feeding disk connected to the equipment base, a first flat vibration track connected to the first rotating vibration feeding disk, a feeding track connected to the first flat vibration track and a driving member for driving the wiring frame to move on the feeding track, the wiring board feeding device comprises a second rotating vibration feeding disk and a second flat vibration track connected to the second rotating vibration feeding disk, the clamping device comprises a first rotating vibration feeding disk connected to the equipment base in a sliding manner, and a second flat vibration track connected to the second rotating vibration feeding disk. A sliding base, a first electric clamping claw connected to the first sliding base, a first rotating motor for driving the first electric clamping claw to rotate, a first hydraulic cylinder for driving the first sliding base to move in a horizontal direction, a second sliding base slidably connected to the equipment base, a third sliding base slidably connected to the second sliding base, a second electric clamping claw connected to the third sliding base, a second hydraulic cylinder for driving the second sliding base to move in a horizontal direction, and a third hydraulic cylinder for driving the third sliding base to move in a horizontal direction, wherein the movement direction of the third sliding base is perpendicular to the movement directions of the first sliding base and the second sliding base, respectively. , when the first electric clamping jaw and the second electric clamping jaw are both in the initial state, the positions of the first electric clamping jaw and the second electric clamping jaw correspond to the end positions of the feeding track and the second flat vibration track respectively, and the screwing device includes a third rotating vibration feeding plate connected to the equipment base, a third flat vibration track connected to the third rotating vibration feeding plate, a feeding pipe connected to the end of the third flat vibration track, a proximity switch connected to the feeding pipe, a first screwing machine connected to the equipment base, a second screwing machine connected to the equipment base, a third screwing machine connected to the equipment base, and a fourth liquid for driving the first screwing machine to move in a vertical direction. A pressure cylinder, a fifth hydraulic cylinder for driving the second screw tightening machine to move in a vertical direction, and a sixth hydraulic cylinder for driving the third screw tightening machine to move in a vertical direction. One end of the feed pipe is connected to the first screw tightening machine. The first screw tightening machine, the second screw tightening machine and the third screw tightening machine are respectively located directly above the feed track. The controller is respectively electrically connected to the first screw tightening machine, the second screw tightening machine, the third screw tightening machine, the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the fifth hydraulic cylinder, the sixth hydraulic cylinder, the first rotating motor, the first electric clamping jaw, the second electric clamping jaw, the proximity switch and the driving member.

2. An automatic screw tightening device for a circuit breaker wiring frame according to claim 1, characterized in that: The first flat vibration track and the feed track are arranged in parallel, and a feed port is provided on the feed track, and the feed port is adapted to the shape and size of the wiring frame to be processed, and the driving member includes a first push plate slidably connected to the equipment base, a second push plate slidably connected to the equipment base, a seventh hydraulic cylinder for driving the first push plate to move along the Y-axis direction, an eighth hydraulic cylinder for driving the second push plate to move along the X-axis direction, a fourth sliding base slidably connected to the equipment base, a fifth sliding base slidably connected to the fourth sliding base, and a fixedly connected The third push plate of the fifth sliding base, the ninth hydraulic cylinder for driving the fourth sliding base to move along the X-axis direction and the tenth hydraulic cylinder for driving the fifth sliding base to move along the Y-axis direction, the third push plate is provided with a plurality of limiting grooves, the limiting grooves are adapted to the shape and size of the wiring frame to be processed, the positions of the limiting grooves are respectively located directly below the first screw tightening machine, the second screw tightening machine and the third screw tightening machine, and the controller is electrically connected to the seventh hydraulic cylinder, the eighth hydraulic cylinder, the ninth hydraulic cylinder and the tenth hydraulic cylinder respectively.

3. An automatic screw tightening device for a circuit breaker wiring frame according to claim 2, characterized in that: The distance between the first screw machine and the second screw machine is the same as the distance between the second screw machine and the third screw machine, and the distance between two adjacent limiting grooves is half of the distance between the first screw machine and the second screw machine. A first photoelectric sensor and a second photoelectric sensor are provided on the base of the equipment, and the first photoelectric sensor and the second photoelectric sensor are respectively located in the middle position between the first screw machine and the second screw machine and in the middle position between the second screw machine and the third screw machine, and the first photoelectric sensor and the second photoelectric sensor are respectively electrically connected to the controller.

4. An automatic screw tightening device for a circuit breaker wiring frame according to claim 2, characterized in that: The feed track is provided with a ejection port, a ejection plate slidably connected to the ejection port and an eleventh hydraulic cylinder for driving the ejection plate to move in a vertical direction. When the third push plate moves a certain distance and the limiting groove is located directly below the first screw tightening machine, the wiring frame located on the limiting groove is close to the side of the second screw tightening machine and fits with the ejection plate, and the controller is electrically connected to the eleventh hydraulic cylinder.

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