Fixing clamp for circuit breaker bimetal assembly

Abstract

A fixing clamp for a circuit breaker bimetallic assembly comprises a clamp base, a first clamp push rod, a second clamp push rod, a third clamp push rod, a first sliding block, a second sliding block, a third sliding block, two first clamps, two second clamps and two third clamps. The first clamp push rod, the second clamp push rod and the third clamp push rod are each provided with a reset spring, the first clamp is provided with a first limiting groove, the second clamp is provided with a second limiting groove, and the third clamp is provided with a third limiting groove. The first clamp, the second clamp and the third clamp are respectively provided with a first fixing groove, a second fixing groove and a third fixing groove, and the first fixing groove, the second fixing groove and the third fixing groove are respectively matched with the arc striking sheet, the bimetallic sheet and the end part of the copper wire in shape and size. The first clamp, the second clamp and the third clamp are sequentially arranged from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker assembly equipment, in particular to a fixing fixture for a double-metal component of a circuit breaker. Background Art

[0002] The bimetallic component is an important component in the circuit breaker. The bimetallic component includes an arc-starting piece, a terminal board, a copper wire connected to the terminal board, and a bimetallic sheet. The copper wire will be pre-welded to the terminal board, and then the end of the arc-starting piece, one end of the copper wire and the end of the bimetallic sheet will be welded in three steps. During the welding process, the copper wire has a certain flexibility and is prone to deformation. However, during welding, in order to ensure the stability of the welding position, the position of the bimetallic component needs to be kept fixed during welding. The fixing fixture used for the bimetallic component in the prior art has the following problems: First, when the existing fixing fixture fixes the bimetallic component, it cannot ensure that the spacing tolerance between the two components meets the requirements; second, the existing fixing fixture usually arranges the bimetallic component in a horizontal direction and fixes it on the fixing fixture. This arrangement method requires a large space and requires the clamping components to make more movements, affecting the processing efficiency. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a fixing fixture for the double metal component of the circuit breaker, which can improve the assembly efficiency and improve the accuracy of the assembly position of the double metal component. The technical solution of the utility model: a fixing fixture for the double metal component of the circuit breaker, including a fixture base, a first fixture push rod slidably connected to the fixture base, a second fixture push rod slidably connected to the fixture base, a third fixture push rod slidably connected to the fixture base, a first slider fixedly connected to the first fixture push rod, a second slider fixedly connected to the second fixture push rod, a third slider fixedly connected to the third fixture push rod, two first clamps slidably connected to the fixture base, two second clamps slidably connected to the fixture base and two third clamps slidably connected to the fixture base, the first clamp push rod, the second clamp push rod and the third clamp push rod are all provided with a reset spring, one end of the three reset springs are all fixedly connected to the fixture base, the first clamp is provided with a first limiting groove, the second clamp is provided with a second limiting groove, the third clamp is provided with a third limiting groove, and the two The first clamp, the two second clamps and the two third clamps are symmetrically arranged with the central axis of the clamp base as the axis center, the first slider, the second slider and the third slider are respectively slidably connected to the first limiting groove, the second limiting groove and the third limiting groove, the central axes of the first limiting groove, the second limiting groove and the third limiting groove are respectively at a certain oblique angle to the central axis of the clamp base, the first slider, the second slider and the third slider are respectively adapted to the shapes and sizes of the first limiting groove, the second limiting groove and the third limiting groove, the first clamp, the second clamp and the third clamp are respectively provided with the first fixing groove, the second fixing groove and the third fixing groove, the first fixing groove, the second fixing groove and the third fixing groove are respectively adapted to the shapes and sizes of the arc-starting plate, the double gold plate and the end of the copper wire, and the positions of the first clamp, the second clamp and the third clamp are arranged in sequence from bottom to top.

[0004] By adopting the above technical scheme, firstly, since the first slider, the second slider and the third slider are respectively slidably connected to the first limiting groove, the second limiting groove and the third limiting groove, the central axes of the first limiting groove, the second limiting groove and the third limiting groove are respectively at a certain oblique angle to the central axis of the fixture base, and the first slider, the second slider and the third slider are respectively adapted to the shapes and sizes of the first limiting groove, the second limiting groove and the third limiting groove. Therefore, by pushing the first fixture push rod, the first slider connected to the first fixture push rod will push the two first clamps to both sides, and then place the arc-starting sheet to be processed on the first fixed groove between the two first clamps, and then release the first fixture push rod, through resetting The elastic force of the spring causes the first clamp push rod to quickly reset, and the two first clamps clamp the arc-starting piece to be processed. Then, through the same principle, the second clamp push rod and the third clamp push rod are pushed in turn to fix the double gold sheet and the copper wire end in the second fixing groove and the third fixing groove in turn. This ensures that all the parts that need to be welded in the double gold assembly are fixed, and then three consecutive weldings are performed. In addition, since the positions of the first clamp, the second clamp and the third clamp are arranged in sequence from bottom to top, the double gold assembly is also arranged in a vertical direction. Therefore, while saving the space occupied by the clamp, the action required by the clamping claws to place the parts into the clamp can be saved, thereby improving the welding efficiency.

[0005] Further configuration of the utility model: the clamp base is also provided with a fourth clamp push rod slidably connected to the clamp base, a fourth slider fixedly connected to the fourth clamp base and two fourth clamps slidably connected to the clamp base, a reset spring is provided between the fourth clamp push rod and the clamp base, a fourth limiting groove and a fourth fixing groove are provided on the fourth clamp, the fourth slider is slidably connected to the fourth limiting groove, the center axis of the fourth limiting groove is at a certain oblique angle to the center axis of the clamp base, the fourth slider is adapted to the shape and size of the fourth limiting groove, the fourth fixing groove is adapted to the shape and size of the terminal block, and the fourth clamp push rod is located between the second clamp push rod and the third clamp push rod.

[0006] By adopting the above technical solution, since the clamp base is also provided with a fourth clamp push rod slidably connected to the clamp base, a fourth slider fixedly connected to the fourth clamp base and two fourth clamps slidably connected to the clamp base, therefore, firstly, by pushing the fourth clamp push rod, the two fourth clamps move in opposite directions, and then the copper wire to be processed and the terminal block are respectively placed between the two third clamps and the two fourth clamps, and then the fourth clamp push rod is released to reset by the reset spring, which can further ensure the position stability of the copper wire and the terminal block, thereby improving the welding accuracy.

[0007] Further configuration of the utility model: the clamp base is also provided with a fixed stopper fixedly connected to the clamp base, the fixed stopper is located directly above the second clamp, and the shape enclosed by the fixed stopper, the two second clamps and the two fourth clamps is adapted to the shape and size of the terminal block to be processed.

[0008] By adopting the above technical solution, since the fixed block is located directly above the second clamp, and the shape formed by the fixed block, the two second clamps and the two fourth clamps is compatible with the shape and size of the terminal block to be processed, the position stability of the terminal block can be further improved, thereby improving the overall welding accuracy of the dual metal assembly.

[0009] A further configuration of the utility model is as follows: a gasket is provided on each of the first clamp push rod, the second clamp push rod, the third clamp push rod and the fourth clamp push rod, and the return spring is located between the gasket and the clamp base.

[0010] By adopting the above technical solution, since the reset spring is located between the gasket and the clamp base, the instability of the relative positions of the first clamp, the second clamp, the third clamp and the fourth clamp caused by vibration during the reset process of the first clamp push rod, the second clamp push rod, the third clamp and the fourth clamp push rod can be reduced, thereby further improving the fixing effect of the clamp on the double metal component, thereby improving the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 The present invention is a schematic structural diagram of a fixing fixture for a dual-metal component of a circuit breaker according to a specific embodiment of the present invention.

[0012] Attached Figure 2 The present invention is a structural schematic diagram of a fixing fixture for a dual-metal assembly of a circuit breaker in a specific embodiment of the present invention in a state where a fixture base is not installed.

[0013] Attached Figure 3 The present invention is a schematic structural diagram of a double metal component in a fixing fixture for a double metal component of a circuit breaker according to a specific embodiment of the present invention.

[0014] 1-clamp base, 2-first clamp push rod, 3-second clamp push rod, 4-third clamp push rod, 5-first slider, 6-second slider, 7-third slider, 8-first clamp, 9-second clamp, 10-third clamp, 11-reset spring, 12-first limiting groove, 13-second limiting groove, 14-third limiting groove, 15-first fixed groove, 16-second fixed groove, 17-third fixed groove, 18-fourth clamp push rod, 19-fourth slider, 20-fourth clamp, 21-fourth limiting groove, 22-fourth fixed groove, 23-fixed stopper, 24-gasket. DETAILED DESCRIPTION

[0015] like Figure 1-3 As shown, a fixing fixture for a dual-metal assembly of a circuit breaker includes a fixture base 1, a first fixture push rod 2 slidably connected to the fixture base 1, a second fixture push rod 3 slidably connected to the fixture base 1, a third fixture push rod 4 slidably connected to the fixture base 1, a first slider 5 fixedly connected to the first fixture push rod 2, a second slider 6 fixedly connected to the second fixture push rod 3, a third slider 7 fixedly connected to the third fixture push rod 4, two first clamps 8 slidably connected to the fixture base 1, and a first slider 8 slidably connected to the first fixture push rod 2. Two second clamps 9 connected to the clamp base 1 and two third clamps 10 slidably connected to the clamp base 1, the first clamp push rod 2, the second clamp push rod 3 and the third clamp push rod 4 are each provided with a return spring 11, one end of the three return springs 11 are all fixedly connected to the clamp base 1, the first clamp 8 is provided with a first limiting groove 12, the second clamp 9 is provided with a second limiting groove 13, the third clamp 10 is provided with a third limiting groove 14, the two first clamps 8, the two second The clip 9 and the two third clips 10 are symmetrically arranged with the central axis of the clamp base 1 as the axis center, the first slider 5, the second slider 6 and the third slider 7 are respectively slidably connected to the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14, the central axes of the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14 are respectively at a certain oblique angle to the central axis of the clamp base 1, the first slider 5, the second slider 6 and the third slider 7 are respectively adapted to the shapes and sizes of the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14, the first clip 8, the second clip 9 and the third clip 10 are respectively provided with a first fixing groove 15, a second fixing groove 16 and a third fixing groove 17, the first fixing groove 15, the second fixing groove 16 and the third fixing groove 17 are respectively adapted to the shapes and sizes of the arc-starting plate, the double gold plate and the end of the copper wire, and the positions of the first clip 8, the second clip 9 and the third clip 10 are arranged in sequence from bottom to top.

[0016] Firstly, since the first slider 5, the second slider 6 and the third slider 7 are respectively slidably connected to the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14, the central axes of the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14 are respectively at a certain oblique angle to the central axis of the fixture base 1, and the first slider 5, the second slider 6 and the third slider 7 are respectively adapted to the shapes and sizes of the first limiting groove 12, the second limiting groove 13 and the third limiting groove 14, therefore, the first fixture push rod 2 is pushed, and the first slider 5 connected to the first fixture push rod 2 will push the two first clamps 8 to both sides, and then place the arc-starting sheet to be processed on the first fixing groove 15 between the two first clamps 8, and then release the first fixture push rod 2. , through the elastic force of the reset spring 11, the first clamp push rod 2 is quickly reset, and the two first clamps 8 clamp the arc-starting sheet to be processed, and then through the same principle, the second clamp push rod 3 and the third clamp push rod 4 are pushed in turn to fix the double gold sheet and the copper wire end in the second fixing groove 16 and the third fixing groove 17 in turn, so that all the parts that need to be welded in the double gold component can be fixed, and then three-way welding can be performed. In addition, since the positions of the first clamp 8, the second clamp 9 and the third clamp 10 are arranged in sequence from bottom to top, the double gold component is also arranged in the vertical direction. Therefore, on the premise of saving the space occupied by the clamp, the action required by the clamping claw to put the parts into the clamp can be saved, thereby improving the welding efficiency.

[0017] The clamp base 1 is also provided with a fourth clamp push rod 18 slidably connected to the clamp base 1, a fourth slider 19 fixedly connected to the fourth clamp base 1 and two fourth clamps 20 slidably connected to the clamp base 1, a reset spring 11 is provided between the fourth clamp push rod 18 and the clamp base 1, a fourth limiting groove 21 and a fourth fixing groove 22 are provided on the fourth clamp 20, the fourth slider 19 is slidably connected to the fourth limiting groove 21, the center axis of the fourth limiting groove 21 is at a certain oblique angle to the center axis of the clamp base 1, the fourth slider 19 is adapted to the shape and size of the fourth limiting groove 21, the fourth fixing groove 22 is adapted to the shape and size of the terminal block, and the fourth clamp push rod 18 is located between the second clamp push rod 3 and the third clamp push rod 4.

[0018] Since the clamp base 1 is also provided with a fourth clamp push rod 18 slidably connected to the clamp base 1, a fourth slider 19 fixedly connected to the fourth clamp base 1 and two fourth clamps 20 slidably connected to the clamp base 1, therefore, firstly, by pushing the fourth clamp push rod 18, the two fourth clamps 20 move in opposite directions, and then the copper wire to be processed and the terminal block are respectively placed between the two third clamps 10 and the two fourth clamps 20, and then the fourth clamp push rod 18 is released and reset by the reset spring 11, which can further ensure the position stability of the copper wire and the terminal block, thereby improving the welding accuracy.

[0019] The fixture base 1 is also provided with a fixed stopper 23 fixedly connected to the fixture base 1, and the fixed stopper 23 is located directly above the second clamp 9. The shape enclosed by the fixed stopper 23, the two second clamps 9 and the two fourth clamps 20 is adapted to the shape and size of the terminal block to be processed.

[0020] Since the fixed stopper 23 is located directly above the second clamp 9, and the shape formed by the fixed stopper 23, the two second clamps 9 and the two fourth clamps 20 is compatible with the shape and size of the terminal block to be processed, the position stability of the terminal block can be further improved, thereby improving the overall welding accuracy of the dual metal component.

[0021] The first clamp push rod 2 , the second clamp push rod 3 , the third clamp push rod 4 and the fourth clamp push rod 18 are all provided with a gasket 24 , and the return spring 11 is located between the gasket 24 and the clamp base 1 .

[0022] Since the reset spring 11 is located between the gasket 24 and the clamp base 1, the relative position instability of the first clamp 8, the second clamp 9, the third clamp 10 and the fourth clamp 20 caused by vibration during the reset process of the first clamp push rod 2, the second clamp push rod 3, the third clamp push rod 4 and the fourth clamp push rod 18 can be reduced, thereby further improving the fixing effect of the clamp on the double metal component and thus improving the welding accuracy.

Claims

1. A fixing fixture for a circuit breaker double metal assembly, characterized in that: The invention comprises a clamp base, a first clamp push rod slidably connected to the clamp base, a second clamp push rod slidably connected to the clamp base, a third clamp push rod slidably connected to the clamp base, a first slider fixedly connected to the first clamp push rod, a second slider fixedly connected to the second clamp push rod, a third slider fixedly connected to the third clamp push rod, two first clamps slidably connected to the clamp base, two second clamps slidably connected to the clamp base and two third clamps slidably connected to the clamp base, the first clamp push rod, the second clamp push rod and the third clamp push rod are all provided with a return spring, one end of the three return springs are all fixedly connected to the clamp base, the first clamp is provided with a first limiting groove, the second clamp is provided with a second limiting groove, the third clamp is provided with a third limiting groove, the two first clamps, the two second clamps and the two The third clamp is symmetrically arranged with the central axis of the clamp base as the axis center, and the first slider, the second slider and the third slider are respectively slidably connected to the first limiting groove, the second limiting groove and the third limiting groove, and the central axes of the first limiting groove, the second limiting groove and the third limiting groove are respectively at a certain oblique angle to the central axis of the clamp base, and the first slider, the second slider and the third slider are respectively adapted to the shapes and sizes of the first limiting groove, the second limiting groove and the third limiting groove, and the first clamp, the second clamp and the third clamp are respectively provided with the first fixing groove, the second fixing groove and the third fixing groove, and the first fixing groove, the second fixing groove and the third fixing groove are respectively adapted to the shapes and sizes of the arc-starting plate, the double gold plate and the end of the copper wire, and the positions of the first clamp, the second clamp and the third clamp are arranged in sequence from bottom to top.

2. A fixing fixture for a circuit breaker dual metal assembly according to claim 1, characterized in that: The clamp base is also provided with a fourth clamp push rod slidably connected to the clamp base, a fourth slider fixedly connected to the fourth clamp base and two fourth clamps slidably connected to the clamp base, a reset spring is provided between the fourth clamp push rod and the clamp base, a fourth limiting groove and a fourth fixing groove are provided on the fourth clamp, the fourth slider is slidably connected to the fourth limiting groove, the center axis of the fourth limiting groove is at a certain oblique angle to the center axis of the clamp base, the fourth slider is adapted to the shape and size of the fourth limiting groove, the fourth fixing groove is adapted to the shape and size of the terminal block, and the fourth clamp push rod is located between the second clamp push rod and the third clamp push rod.

3. A fixing fixture for a circuit breaker dual metal assembly according to claim 2, characterized in that: The fixture base is also provided with a fixed stopper fixedly connected to the fixture base, and the fixed stopper is located directly above the second clamp. The shape formed by the fixed stopper, the two second clamps and the two fourth clamps is compatible with the shape and size of the wiring board to be processed.

4. A fixing fixture for a circuit breaker dual metal assembly according to claim 2, characterized in that: The first clamp push rod, the second clamp push rod, the third clamp push rod and the fourth clamp push rod are all provided with gaskets, and the return spring is located between the gasket and the clamp base.

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