Cooling mechanism for moving contact welding machine

Abstract

A cooling mechanism for a moving contact welding machine comprises an equipment base, a fixing station, a clamping device, a turnover device, a transmission device, a constant-current fan and a controller, and the clamping device comprises a first fixing frame, a first sliding base, a second sliding base, a first electric clamping jaw, a first hydraulic air cylinder and a second hydraulic air cylinder. The conveying device comprises a conveying rail, a plurality of carriers and a driving part, limiting grooves are formed in the carriers, and the turnover device comprises a third sliding base, a fourth sliding base, a second electric clamping jaw, a third hydraulic air cylinder, a fourth hydraulic air cylinder and a rotating motor. The controller is electrically connected with the first hydraulic air cylinder, the second hydraulic air cylinder, the third hydraulic air cylinder, the fourth hydraulic air cylinder, the rotating motor, the first electric clamping jaw, the second electric clamping jaw, the driving piece and the constant-current fan.

Description

Technical Field

[0001] The utility model relates to the technical field of moving contact welding equipment, in particular to a cooling mechanism for a moving contact welding machine. Background Art

[0002] The moving contact is an important component in the circuit breaker. Silver spots need to be welded at both ends of the moving contact. During the welding process, a large current is required, and the moving contact is usually a metal part with good electrical and thermal conductivity. Therefore, after the silver spot welding work on one end of the moving contact is completed, the temperature on the moving contact is high, which will affect the silver spot welding work on the other end of the moving contact, and may result in poor welding effect. Therefore, after the silver spot welding work on one end of the moving contact is completed, it is necessary to wait for the moving contact to be completely cooled before the next welding work can be carried out. In the prior art, the cooling of the moving contact is usually completed by natural cooling. Such cooling efficiency is low, which will cause reduced welding efficiency. In addition, cooling the moving contact by natural cooling requires two loading and unloading processes for the moving contact. Through the existing feeding and discharging equipment, it is impossible to ensure that the end of the unwelded silver spot faces the welding machine. According to the characteristic that the moving contact in the prior art is usually centrally symmetrically arranged, a new type of moving contact cooling mechanism is designed. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a cooling mechanism for a moving contact welding machine, which can ensure the accurate welding position of the moving contact, improve the welding efficiency, and ensure that the moving contact is welded in a completely cooled state.

[0004] The technical solution of the utility model: a cooling mechanism for a moving contact welding machine, comprising an equipment base, a fixed station for placing a moving contact to be processed, a clamping device connected to the equipment base, a flipping device connected to the equipment base, a transmission device connected to the equipment base, a constant current fan and a controller connected to the equipment base, the clamping device comprising a first fixed frame, a first sliding base slidably connected to the first fixed frame, a second sliding base slidably connected to the first sliding base, a first electric clamping claw connected to the second sliding base, a first hydraulic cylinder for driving the first sliding base to move in a horizontal direction and a second hydraulic cylinder for driving the second sliding base to move in a vertical direction, the transmission device comprising a transmission track connected to the equipment base, a plurality of carriers slidably connected to the transmission track and a driving member for driving the carrier to slide on the transmission track, the carrier is provided with a limiting groove, the limiting groove The groove is adapted to the shape and size of the moving contact to be processed. The constant current fan is located directly above the transmission track. The flipping device includes a third sliding base slidably connected to the equipment base, a fourth sliding base slidably connected to the third sliding base, a second electric clamping claw connected to the fourth sliding base, a third hydraulic cylinder for driving the third sliding base to move in a horizontal direction, a fourth hydraulic cylinder for driving the fourth sliding base to move in a vertical direction, and a rotating motor for driving the second electric clamping claw to rotate. When the first sliding base is in an initial state, the first electric clamping claw is located directly above the fixed workstation, and the second electric clamping claw corresponds to the end position of the transmission track. The controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the rotating motor, the first electric clamping claw, the second electric clamping claw, the driving member and the constant current fan, respectively.According to the technical scheme, first, the moving contact to be welded is placed on a fixed station to complete the first welding, and then the controller is used to control the first hydraulic cylinder to drive the first sliding base to move to the top of the fixed station, and then the controller is used to control the second hydraulic cylinder to drive the second sliding base to move vertically downward, so that the first electric clamping claw contacts the moving contact to be processed, and then the controller is used to control the first electric clamping claw to clamp the moving contact to be welded, and then the controller is used to control the first hydraulic cylinder and the second hydraulic cylinder to drive the first sliding base and the second sliding base to move, so that the first electric clamping claw moves to the top of the carrier on the transmission track, and then the moving contact to be processed is placed on the limiting groove of the carrier, and then the controller is used to control the driving member to drive the carrier to move along the transmission track, so that the next carrier without the moving contact is placed moves to the bottom of the first electric clamping claw, and the above steps are repeated, and then the moving contact with silver spot welding completed at one end moves in the direction of the constant current fan, and after being cooled by the cold air blown by the constant current fan, it continues to move in the direction of the flipping device. When the carrier moves into place, The controller controls the third hydraulic cylinder to drive the third sliding base to move in the direction of the carrier, and then controls the fourth hydraulic cylinder to drive the fourth sliding base to move in the vertical direction through the controller, so that the second electric clamping claw moves to the position corresponding to the moving contact, and then the moving contact is clamped by the second electric clamping claw, and then the fourth hydraulic cylinder is controlled by the controller to drive the fourth sliding base to move vertically upward, so that the moving contact is separated from the carrier, and then the controller controls the rotating motor to drive 180 degrees, and then the controller controls the fourth hydraulic cylinder to drive the fourth sliding base to move vertically downward, so that the moving contact is installed on the carrier. After a certain amount of flipping is completed, the controller controls the driving member to drive the carrier that has completed the flipping of the moving contact to move in the opposite direction of the welding machine, and then the silver spot welding work is completed on the other end of the moving contact, and then the processed moving contact is clamped to the fixed station through the clamping device. Compared with the traditional moving contact welding machine, since there is no need to wait for the moving contact to cool naturally, the welding efficiency is greatly improved. At the same time, it is ensured that the moving contact can be welded in a completely cooled state, thereby improving the welding effect.

[0005] The utility model is further configured as follows: the transmission track includes a first transmission track, a second transmission track, a third transmission track and a fourth transmission track, the first transmission track is located below the first fixed frame, the third transmission track is located directly below the constant current fan, the movement direction of the carrier on the second transmission track and the fourth transmission track is respectively perpendicular to the movement direction of the carrier on the first transmission track and the third transmission track, the first transmission track, the second transmission track, the third transmission track and the fourth transmission track form a closed loop, and the position of the second electric clamping claw corresponds to the position of the connection between the first transmission track and the second transmission track. With the above technical solution, since the first transmission track, the second transmission track, the third transmission track and the fourth transmission track form a closed loop, the travel required for the carrier to return to the bottom of the welding machine after completing the silver spot welding work at one end of the moving contact is further improved, thereby further ensuring that the moving contact is in a completely cooled state when welding the other end of the moving contact. The utility model is further configured as follows: the driving member includes a push rod slidably connected to the equipment base and a fifth hydraulic cylinder for driving the push rod to move in a horizontal direction. The number of the driving members is four, and the positions of the four driving members respectively correspond to the connection between the first transmission rail and the second transmission rail, the connection between the second transmission rail and the third transmission rail, the connection between the third transmission rail and the fourth transmission rail, and the connection between the fourth transmission rail and the first transmission rail. The movement directions of the four push rods are respectively the same as the axial directions of the first transmission rail, the second transmission rail, the third transmission rail and the fourth transmission rail, and the heights of the push rods respectively correspond to the heights of the carrier on the first transmission rail, the second transmission rail, the third transmission rail or the fourth transmission rail.

[0006] By adopting the above technical solution, first, the fifth hydraulic cylinder is controlled by the controller to drive the push rod to move the carrier located on the first transmission track toward the direction of the welding machine. The carrier subjected to the thrust will push the adjacent carrier the same distance, and then the carrier moves to the connection between the first transmission track and the second transmission track, and the moving contact on the carrier is rotated 180 degrees by the flipping device, and then the fifth hydraulic cylinder is controlled by the controller to drive the push rod at this position to push the carrier from the first transmission track to the second transmission track. Similarly, the driving part can transfer the carrier to the third transmission track and the fourth transmission track respectively and finally move from the fourth transmission track back to the first transmission track. In this way, it can be ensured that the carrier completes the turning on the four transmission tracks, the movement stroke of the carrier is increased, and the moving contact can be ensured to be fully cooled.

[0007] Further configuration of the utility model: five photoelectric sensors are also provided on the base of the equipment, and the positions of the light signals emitted by the five photoelectric sensors correspond respectively to the position directly below the first electric clamping claw, the connection between the first transmission track and the second transmission track, the connection between the second transmission track and the third transmission track, the connection between the third transmission track and the fourth transmission track, and the connection between the fourth transmission track and the first transmission track.

[0008] By adopting the above technical scheme, since the positions of the light signals emitted by the five photoelectric sensors correspond to the position directly below the first electric clamping claw, the connection between the first transmission track and the second transmission track, the connection between the second transmission track and the third transmission track, the connection between the third transmission track and the fourth transmission track, and the connection between the fourth transmission track and the first transmission track, at each position where material pushing is required, after the carrier moves into place, the photoelectric sensor transmits an electrical signal to the controller, and the controller controls the clamping device to complete the clamping work and controls the flipping device to complete the flipping work of the moving contact, and then controls the four driving parts to move synchronously, thereby ensuring the accuracy of the welding position and the fact that the carrier will not malfunction during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 The present invention is a schematic structural diagram of a cooling mechanism for a moving contact welding machine according to a specific embodiment of the present invention.

[0010] 1-equipment base, 2-fixed workstation, 3-clamping device, 4-flipping device, 5-transmission device, 6-constant flow fan, 7-controller, 8-first fixed frame, 9-first sliding base, 10-second sliding base, 11-first electric clamping claw, 12-first hydraulic cylinder, 13-second hydraulic cylinder, 14-transmission rail, 15-carrier, 16-driving member, 17-limiting groove, 18-third sliding base, 19-fourth sliding base, 20-second electric clamping claw, 21-third hydraulic cylinder, 22-fourth hydraulic cylinder, 23-rotating motor, 24-first transmission rail, 25-second transmission rail, 26-third transmission rail, 27-fourth transmission rail, 28-lift rod, 29-fifth hydraulic cylinder, 30-photoelectric sensor. DETAILED DESCRIPTION

[0011] like Figure 1As shown, a cooling mechanism for a moving contact welding machine includes an equipment base 1, a fixed station 2 for placing a moving contact to be processed, a clamping device 3 connected to the equipment base 1, a flipping device 4 connected to the equipment base 1, a transmission device 5 connected to the equipment base 1, a constant flow fan 6 connected to the equipment base 1, and a controller 7, wherein the clamping device 3 includes a first fixed frame 8, a first sliding base 9 slidably connected to the first fixed frame 8, a second sliding base 10 slidably connected to the first sliding base 9, and a second sliding base 11 connected to the second sliding base 12. The first electric clamping claw 11 of the sliding base 10, the first hydraulic cylinder 12 for driving the first sliding base 9 to move in the horizontal direction and the second hydraulic cylinder 13 for driving the second sliding base 10 to move in the vertical direction, the transmission device 5 includes a transmission track 14 connected to the equipment base 1, a plurality of carriers 15 slidably connected to the transmission track 14 and a driving member 16 for driving the carrier 15 to slide on the transmission track 14, the carrier 15 is provided with a limiting groove 17, and the limiting groove 17 is aligned with the processing to be processed. The shape and size of the moving contact are adapted, the constant flow fan 6 is located directly above the transmission track 14, and the flip device 4 includes a third sliding base 18 slidably connected to the equipment base 1, a fourth sliding base 19 slidably connected to the third sliding base 18, a second electric clamping claw 20 connected to the fourth sliding base 19, a third hydraulic cylinder 21 for driving the third sliding base 18 to move in the horizontal direction, a fourth hydraulic cylinder 22 for driving the fourth sliding base 19 to move in the vertical direction, and a second electric clamping claw 20 connected to the fourth sliding base 19. The rotating motor 23 rotates the dynamic clamping jaw 20. When the first sliding base 9 is in the initial state, the first electric clamping jaw 11 is located directly above the fixed workstation 2, and the second electric clamping jaw 20 corresponds to the end position of the transmission track 14. The controller 7 is electrically connected to the first hydraulic cylinder 12, the second hydraulic cylinder 13, the third hydraulic cylinder 21, the fourth hydraulic cylinder 22, the rotating motor 23, the first electric clamping jaw 11, the second electric clamping jaw 20, the driving member 16 and the constant flow fan 6 respectively.

[0012] First, the moving contact to be welded is placed on the fixed station 2, and then the controller 7 controls the first hydraulic cylinder 12 to drive the first sliding base 9 to move to the top of the fixed station 2, and then the controller 7 controls the second hydraulic cylinder 13 to drive the second sliding base 10 to move vertically downward, so that the first electric clamping claw 11 contacts the moving contact to be processed, and then the controller 7 controls the first electric clamping claw 11 to clamp the moving contact to be welded, and then the controller 7 controls the first hydraulic cylinder 12 and the second hydraulic cylinder 13 to drive the first sliding base 9 and the second sliding base 10 to move ... first electric clamping claw 11 contacts the moving contact to be processed, and then the first electric clamping claw 11 contacts the moving contact to be welded, and then the controller 7 controls the first hydraulic cylinder 12 and the second hydraulic cylinder 13 to drive the first sliding base The holding claw 11 moves to the top of the carrier 15 on the transmission track 14, and then the moving contact to be processed is placed on the limiting groove 17 of the carrier 15, and then the welding machine 2 completes the welding work on the moving contact on the carrier 15, and then the controller 7 controls the driving member 16 to drive the carrier 15 to move along the transmission track 14, so that the next carrier 15 without a moving contact is moved to the bottom of the first electric clamping claw 11, and the above steps are repeated. Then, the moving contact with silver spot welding completed at one end moves in the direction of the constant current fan 6, and after being cooled by the cold air blown by the constant current fan 6, it continues to move in the direction of the flip device 4. When the carrier After the carrier 15 moves to the right position, the controller 7 controls the third hydraulic cylinder 21 to drive the third sliding base 18 to move in the direction of the carrier 15, and then controls the fourth hydraulic cylinder 22 to drive the fourth sliding base 19 to move in the vertical direction through the controller 7, so that the second electric clamping claw 20 moves to the position corresponding to the moving contact, and then the moving contact is clamped by the second electric clamping claw 20, and then the controller 7 controls the fourth hydraulic cylinder 22 to drive the fourth sliding base 19 to move vertically upward, so that the moving contact is separated from the carrier 15, and then the controller 7 controls the rotating motor 23 to drive 180 degrees, and then the controller 7 controls The fourth hydraulic cylinder 22 drives the fourth sliding base 19 to move vertically downward, so that the moving contact is installed on the carrier 15. After a certain amount of flipping is completed, the controller 7 controls the driving member 16 to drive the carrier 15 that has completed the flipping of the moving contact to move in the opposite direction of the welding machine, and then the silver spot welding work is completed on the other end of the moving contact, and then the processed moving contact is clamped to the fixed workstation 2 through the clamping device 3. Compared with the traditional moving contact welding machine, this greatly improves the welding efficiency because there is no need to wait for the moving contact to cool naturally. At the same time, it ensures that the moving contact can be welded in a completely cooled state, thereby improving the welding effect.The transfer track 14 includes a first transfer track 24, a second transfer track 25, a third transfer track 26 and a fourth transfer track 27. The first transfer track 24 is located below the first fixed frame 8, and the third transfer track 26 is located directly below the constant flow fan 6. The movement directions of the carrier 15 on the second transfer track 25 and the fourth transfer track 27 are respectively perpendicular to the movement directions of the carrier 15 on the first transfer track 24 and the third transfer track 26. The first transfer track 24, the second transfer track 25, the third transfer track 26 and the fourth transfer track 27 form a closed loop, and the position of the second electric clamping claw 20 corresponds to the position at the connection between the first transfer track 24 and the second transfer track 25.

[0013] Since the first transmission track 24, the second transmission track 25, the third transmission track 26 and the fourth transmission track 27 form a closed loop, the travel required for the carrier 15 to return to the bottom of the welding machine after completing the silver spot welding work at one end of the moving contact is further improved, thereby further ensuring that the moving contact is in a completely cooled state when welding the other end of the moving contact. The driving member 16 includes a push rod 28 slidably connected to the equipment base 1 and a fifth hydraulic cylinder 29 for driving the push rod 28 to move in the horizontal direction. The number of the driving members 16 is four, and the positions of the four driving members 16 correspond to the connection between the first transmission rail 24 and the second transmission rail 25, the connection between the second transmission rail 25 and the third transmission rail 26, the connection between the third transmission rail 26 and the fourth transmission rail 27, and the connection between the fourth transmission rail 27 and the first transmission rail 24. The movement directions of the four push rods 28 are respectively the same as the axial directions of the first transmission rail 24, the second transmission rail 25, the third transmission rail 26 and the fourth transmission rail 27, and the height of the push rod 28 corresponds to the height of the carrier 15 on the first transmission rail 24, the second transmission rail 25, the third transmission rail 26 or the fourth transmission rail 27.

[0014] First, the fifth hydraulic cylinder 29 is controlled by the controller 7 to drive the push rod 28 to move the carrier 15 located on the first transmission track 24 toward the direction of the welding machine. The carrier 15 subjected to the thrust will push the adjacent carrier 15 the same distance, and then the carrier 15 moves to the connection between the first transmission track 24 and the second transmission track 25. The moving contact on the carrier 15 is rotated 180 degrees by the flipping device 4, and then the fifth hydraulic cylinder 29 is controlled by the controller 7 to drive the push rod 28 at this position to push the carrier 15 from the first transmission track 24 to the second transmission track 25. Similarly, the driving member 16 can transfer the carrier 15 to the third transmission track 26 and the fourth transmission track 27 respectively and finally move from the fourth transmission track 27 back to the first transmission track 24. In this way, it can be ensured that the carrier 15 completes the turning on the four transmission tracks 14, the movement stroke of the carrier 15 is increased, and the moving contact can be fully cooled.

[0015] Five photoelectric sensors 30 are also provided on the equipment base 1. The positions of the light signals emitted by the five photoelectric sensors 30 correspond to the position directly below the first electric clamping claw 11, the connection between the first transmission rail 24 and the second transmission rail 25, the connection between the second transmission rail 25 and the third transmission rail 26, the connection between the third transmission rail 26 and the fourth transmission rail 27, and the connection between the fourth transmission rail 27 and the first transmission rail 24.

[0016] Since the positions of the light signals emitted by the five photoelectric sensors 30 correspond to the position directly below the first electric clamping claw 11, the connection between the first transmission track 24 and the second transmission track 25, the connection between the second transmission track 25 and the third transmission track 26, the connection between the third transmission track 26 and the fourth transmission track 27, and the connection between the fourth transmission track 27 and the first transmission track 24, at each position where material pushing is required, after the carrier 15 moves into place, the photoelectric sensor 30 transmits an electrical signal to the controller 7, and the controller 7 controls the clamping device 3 to complete the clamping work and controls the flipping device 4 to complete the flipping work of the moving contact, and then controls the four driving members 16 to move synchronously, so as to ensure the accuracy of the welding position and ensure that the carrier 15 will not malfunction during the movement.

Claims

1. A cooling mechanism for a moving contact welding machine, characterized in that: The invention comprises an equipment base, a fixed station for placing a moving contact to be processed, a clamping device connected to the equipment base, a flipping device connected to the equipment base, a transmission device connected to the equipment base, a constant-current fan and a controller connected to the equipment base, the clamping device comprises a first fixed frame, a first sliding base slidably connected to the first fixed frame, a second sliding base slidably connected to the first sliding base, a first electric clamping claw connected to the second sliding base, a first hydraulic cylinder for driving the first sliding base to move in a horizontal direction and a second hydraulic cylinder for driving the second sliding base to move in a vertical direction, the transmission device comprises a transmission track connected to the equipment base, a plurality of carriers slidably connected to the transmission track and a driving member for driving the carriers to slide on the transmission track, the carrier is provided with a limiting groove, and the limiting groove is substantially the same as the shape of the moving contact to be processed The small phase is adapted, the constant current fan is located directly above the transmission track, the flipping device includes a third sliding base slidably connected to the equipment base, a fourth sliding base slidably connected to the third sliding base, a second electric clamping claw connected to the fourth sliding base, a third hydraulic cylinder for driving the third sliding base to move in a horizontal direction, a fourth hydraulic cylinder for driving the fourth sliding base to move in a vertical direction and a rotating motor for driving the second electric clamping claw to rotate, when the first sliding base is in an initial state, the first electric clamping claw is located directly above the fixed workstation, and the second electric clamping claw corresponds to the end position of the transmission track, and the controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the rotating motor, the first electric clamping claw, the second electric clamping claw, the driving member and the constant current fan respectively.

2. A cooling mechanism for a moving contact welding machine according to claim 1, characterized in that: The transmission track includes a first transmission track, a second transmission track, a third transmission track and a fourth transmission track. The first transmission track is located below the first fixed frame, and the third transmission track is located directly below the constant current fan. The movement direction of the carrier on the second transmission track and the fourth transmission track are respectively perpendicular to the movement direction of the carrier on the first transmission track and the third transmission track. The first transmission track, the second transmission track, the third transmission track and the fourth transmission track form a closed loop, and the position of the second electric clamping claw corresponds to the position of the connection between the first transmission track and the second transmission track.

3. A cooling mechanism for a moving contact welding machine according to claim 2, characterized in that: The driving member includes a push rod slidably connected to the equipment base and a fifth hydraulic cylinder for driving the push rod to move in a horizontal direction. There are four driving members, and the positions of the four driving members correspond to the connection between the first transmission rail and the second transmission rail, the connection between the second transmission rail and the third transmission rail, the connection between the third transmission rail and the fourth transmission rail, and the connection between the fourth transmission rail and the first transmission rail. The movement directions of the four push rods are respectively the same as the axial directions of the first transmission rail, the second transmission rail, the third transmission rail and the fourth transmission rail. The height of the push rod corresponds to the height of the carrier on the first transmission rail, the second transmission rail, the third transmission rail or the fourth transmission rail.

4. A cooling mechanism for a moving contact welding machine according to claim 3, characterized in that: The base of the equipment is also provided with five photoelectric sensors, and the positions of the light signals emitted by the five photoelectric sensors correspond respectively to the position directly below the first electric clamping claw, the connection between the first transmission track and the second transmission track, the connection between the second transmission track and the third transmission track, the connection between the third transmission track and the fourth transmission track, and the connection between the fourth transmission track and the first transmission track.

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