Welding clamp for energy accumulator

Abstract

The utility model provides an energy accumulator welding fixture, which belongs to the technical field of energy accumulator manufacturing, and comprises a base, a radial clamping mechanism, an axial clamping mechanism, a first driving mechanism and a second driving mechanism, the radial clamping mechanism is arranged at one end of the base in the length direction, the axial clamping mechanism is arranged on the base and is opposite to the radial clamping mechanism, and the first driving mechanism is arranged on the base. Comprising a pre-tightening assembly and a clamping assembly, the pre-tightening assembly is slidably arranged on a base, the clamping assembly is slidably arranged on the pre-tightening assembly, a first driving mechanism is used for driving the pre-tightening assembly to slide and adjusting the distance between the pre-tightening assembly and a radial clamping mechanism, and a second driving mechanism is used for driving the clamping assembly to slide. And the energy accumulator shell is pressed between the radial clamping mechanism and the pre-tightening assembly in an abutting mode. The energy accumulator welding clamp is high in universality, the labor intensity of operators is reduced, meanwhile, the time spent on replacing the welding clamp by the operators is saved, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of accumulator manufacturing, and more specifically relates to an accumulator welding fixture. Background Art

[0002] The diaphragm accumulator is an energy storage device in a hydraulic and pneumatic system. The outer shell of the diaphragm accumulator is usually welded by two hemispherical metal shells. During the welding process, the two hemispherical metal shells are first spot-welded to form the accumulator shell, and then the accumulator shell is installed on a welding fixture for welding. At present, the structure of the welding fixture used to clamp the accumulator shell is relatively simple, usually including two clamping parts, one of which is a fixed part and the other is a movable part. During operation, the accumulator shell is first installed on the fixed clamping part, and then the movable part is moved to clamp the accumulator shell between the fixed part and the movable part. In order to ensure processing efficiency, the movable distance of the movable part is usually limited to a small distance. In this way, when the size specification of the accumulator shell changes, the operating distance between the fixed part and the movable part on the original welding fixture is difficult to match the size of the accumulator shell after the specification change. The operator has to replace the welding fixture, which invisibly increases the labor intensity of the operator. In addition, replacing the welding fixture also takes up a lot of working time, resulting in a decrease in working efficiency. Utility Model Content

[0003] The utility model aims to provide an accumulator welding fixture, aiming to solve the problem of poor universality of the existing accumulator welding fixture.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide an accumulator welding fixture, comprising:

[0005] Base;

[0006] A radial clamping mechanism, the radial clamping mechanism is arranged at one end of the base in the length direction, the radial clamping mechanism clamps the accumulator housing to limit the radial degree of freedom of the accumulator housing;

[0007] An axial clamping mechanism, the axial clamping mechanism is arranged on the base and is arranged opposite to the radial clamping mechanism, the axial clamping mechanism comprises a pre-tightening assembly and a clamping assembly, the pre-tightening assembly is slidably arranged on the base along the length direction of the base, and the clamping assembly is slidably arranged on the pre-tightening assembly along the length direction of the base;

[0008] a first driving mechanism, disposed on the base, and used for driving the pre-tightening assembly to slide, so as to adjust the distance between the pre-tightening assembly and the radial clamping mechanism;

[0009] The second driving mechanism is arranged on the pre-tightening assembly. The second driving mechanism is used to drive the clamping assembly to slide, so as to press the accumulator housing between the radial clamping mechanism and the pre-tightening assembly, restricting the axial degree of freedom of the accumulator housing.

[0010] In a possible implementation manner, the radial clamping mechanism includes:

[0011] A mounting frame fixedly connected to the base;

[0012] A three-jaw chuck, which includes a clamping end and a connecting end arranged oppositely. The clamping end faces the axial clamping mechanism and is used to clamp the accumulator housing. A rotating shaft is bolted and fixed to the connecting end, and the rotating shaft is rotatably connected to the mounting frame;

[0013] A driving motor is mounted on the mounting frame. The driving end of the driving motor is in transmission connection with the rotating shaft and is used to drive the rotating shaft to drive the three-jaw chuck to rotate.

[0014] In a possible implementation manner, a first guide rail is arranged on the base along its length direction. The pre-tightening assembly includes a movable block slidably arranged on the first guide rail. The clamping assembly is slidably arranged on the movable block. The first driving mechanism includes a lead screw arranged along the length direction of the base. The lead screw is rotatably connected to the base. The movable block is sleeved on the lead screw and is in threaded transmission connection with the lead screw. Rotating the lead screw is used to drive the movable block to slide on the first guide rail to move away from or close to the radial clamping mechanism.

[0015] In a possible implementation manner, a second guide rail is arranged on the movable block along the length direction of the base. The clamping assembly includes an abutting block slidably arranged on the second guide rail. The second driving mechanism is a linear actuator arranged on the movable block. The driving end of the linear actuator is connected to the abutting block. When the linear actuator acts, it is used to drive the abutting block to slide and press the accumulator housing.

[0016] In a possible implementation manner, an abutting head is arranged on the abutting block and is used to press the accumulator housing. The abutting head is rotatably connected to the abutting block and coincides with the central axis of the three-jaw chuck.

[0017] In a possible implementation manner, a first limiting member is arranged on the base and is used to limit the sliding range of the movable block.

[0018] In a possible implementation manner, a second limiting member is arranged on the movable block and is used to limit the sliding range of the abutting block.

[0019] In a possible implementation, an electronic monitor is provided on the mounting bracket, and the electronic monitor is used to monitor the number of rotations of the three-jaw chuck.

[0020] In a possible implementation, a mounting groove is provided on the upper end surface of the base along its length direction, the first guide rail is arranged in the mounting groove, a cover plate is provided at the upper end of the base, the cover plate extends along the length direction of the base to cover above the mounting groove, the movable block penetrates through the cover plate and is slidably connected to the cover plate, and the clamping assembly is located above the cover plate.

[0021] In a possible implementation, a length scale mark is provided on one side of the base along its length direction, and a pointer is provided on the clamping assembly corresponding to the length scale mark.

[0022] The beneficial effects of the accumulator welding fixture provided by the present utility model are as follows: Compared with the prior art, for the accumulator welding fixture of the present utility model, when the specification of the accumulator shell changes, the first driving mechanism can be started to drive the pre-tightening assembly to slide on the base, and the distance between the pre-tightening assembly and the radial clamping mechanism can be adjusted, so that the working distance between the clamping assembly arranged on the pre-tightening assembly and the radial clamping mechanism can match the accumulator shell after the specification change, and the operator does not need to replace a new welding fixture. The accumulator welding fixture provided by the present utility model has strong versatility, reduces the labor intensity of the operator, saves the time required for the operator to replace the welding fixture, and improves the working efficiency. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the accumulator welding fixture provided by the embodiment of the present utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the accumulator welding fixture provided by the embodiment of the present utility model after removing the cover plate;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the accumulator welding fixture provided by the embodiment of the present utility model after removing the abutting block;

[0027] Figure 4 For along Figure 1Cross-sectional structure diagram of line A-A in the middle.

[0028] Explanation of reference numerals in the drawings:

[0029] 1. Base; 101. Installation groove; 102. First guide rail; 103. First connecting plate; 104. Second connecting plate; 105. First stop block; 2. Radial clamping mechanism; 21. Mounting bracket; 211. First longitudinal plate; 212. First mounting plate; 22. Three-jaw chuck; 23. Rotating shaft; 24. Driving motor; 25. Second longitudinal plate; 3. Axial clamping mechanism; 31. Pre-tightening assembly; 311. Movable block; 312. First slider; 313. Transmission block; 314. Second guide rail; 315. Second mounting plate; 32. Clamping assembly; 321. Contact block; 3211. Contact head; 322. Connecting block; 3221. Relief groove; 323. Second slider; 324. Second stop block; 33. Lead screw; 331. Handwheel; 34. Cylinder; 4. Electronic monitor; 5. Cover plate; 6. Pointer; 7. Length scale mark. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0034] Please refer to Figures 1 to 4 , and now the accumulator welding fixture provided by the present utility model will be described. The accumulator welding fixture includes a base 1, a radial clamping mechanism 2, an axial clamping mechanism 3, a first driving mechanism, and a second driving mechanism. Among them, the radial clamping mechanism 2 is arranged at one end of the base 1 in the length direction. The radial clamping mechanism 2 clamps the accumulator housing to limit the radial degree of freedom of the accumulator housing. The axial clamping mechanism 3 is arranged on the base 1 and is disposed opposite to the radial clamping mechanism 2. The axial clamping mechanism 3 includes a pre-tightening component 31 and a clamping component 32. The pre-tightening component 31 is slidably arranged on the base 1 along the length direction of the base 1, and the clamping component 32 is slidably arranged on the pre-tightening component 31 along the length direction of the base 1. The first driving mechanism is arranged on the base 1 and is used to drive the pre-tightening component 31 to slide so as to adjust the distance between the pre-tightening component 31 and the radial clamping mechanism 2. The second driving mechanism is arranged on the pre-tightening component 31 and is used to drive the clamping component 32 to slide so as to press the accumulator housing between the radial clamping mechanism 2 and the pre-tightening component 31, restricting the axial degree of freedom of the accumulator housing.

[0035] Compared with the prior art, when the specification of the accumulator housing changes, the accumulator welding fixture provided by the present utility model can start the first driving mechanism to drive the pre-tightening component 31 to slide on the base 1, and adjust the distance between the pre-tightening component 31 and the radial clamping mechanism 2, so that the working distance between the clamping component 32 arranged on the pre-tightening component 31 and the radial clamping mechanism 2 can match the accumulator housing after the specification change, enabling the operator not to need to replace a new welding fixture. The accumulator welding fixture provided by the present utility model has strong versatility, reduces the labor intensity of the operator, saves the time required for the operator to replace the welding fixture, and improves the working efficiency.

[0036] In some embodiments, please refer to Figures 1 to 4, the radial clamping mechanism 2 includes a mounting frame 21, a three-jaw chuck 22 and a driving motor 24. Among them, the mounting frame 21 includes two first longitudinal plates 211 bolted and fixed on both sides of the base 1 in the width direction. The two first longitudinal plates 211 are located at one end of the base 1 in the length direction, are opposite to each other and are arranged parallel to each other. A first mounting plate 212 is connected between the two first longitudinal plates 211. The first mounting plate 212 is perpendicular to the base 1 and is located at one end of the first longitudinal plate 211 facing the axial clamping mechanism 3. The three-jaw chuck 22 is a common mechanical component in the prior art. One end of the three-jaw chuck 22 where the jaws are provided is the clamping end for clamping the accumulator shell. The end of the three-jaw chuck 22 opposite to the jaws is the connecting end, and the connecting end is provided with a connecting hole for assembly. In this embodiment, the clamping end faces the axial clamping mechanism 3, and a rotating shaft 23 is bolted and fixed on the connecting end by means of the connecting hole. The rotating shaft 23 is rotatably connected to the first mounting plate 212. The driving motor 24 is bolted and fixed on the first mounting plate 212. The driving end of the driving motor 24 is in transmission connection with the rotating shaft 23 for driving the rotating shaft 23 to drive the three-jaw chuck 22 to rotate.

[0037] In this embodiment, at one end of the two first longitudinal plates 211 away from the first mounting plate 212, there is a second longitudinal plate 25. The second longitudinal plate 25 is arranged parallel to the first mounting plate 212. The two first longitudinal plates 211 and the second longitudinal plate 25 are welded and fixed. The lower end of the second longitudinal plate 25 is welded and fixed to the end of the base 1. A plurality of connecting holes are provided on the second longitudinal plate 25. In daily applications, the base 1 can be installed on the welding table of the welding machine as needed to make the welding fixture in a horizontal state, or the second longitudinal plate 25 can be installed on the welding table of the welding machine as needed to make the welding fixture in a vertical state.

[0038] In some embodiments, please refer to Figures 1 to 4, a mounting groove 101 is provided on the upper end surface of the base 1 along its length direction, one end of the mounting groove 101 extends to the bottom of the three-jaw chuck 22, and the other end passes through the base 1 in the opposite direction; a first guide rail 102 is provided in the mounting groove 101 along the length direction of the base 1. In the present embodiment, the number of the first guide rails 102 is two, and the two first guide rails 102 are spaced apart and symmetrically arranged. The above-mentioned pre-tightening assembly 31 includes a movable block 311, and a first slider 312 is provided at the bottom of the movable block 311 corresponding to the first guide rail 102. The first slider 312 slidably cooperates with the first guide rail 102, and the movable block 311 can slide on the first guide rail 102 with the help of the first slider 312, and a first connecting plate 103 is provided at one end of the mounting groove 101 close to the three-jaw chuck 22, and a second connecting plate 104 is provided at the end of the mounting groove 101 away from the three-jaw chuck 22. The first connecting plate 103 and the second connecting plate 104 are arranged relatively parallel, and the first connecting plate 103 and the second connecting plate 104 are arranged relatively parallel to each other. The plate 103 and the second connecting plate 104 are both perpendicular to the base 1, and the two first guide rails 102 are located between the first connecting plate 103 and the second connecting plate 104. The first driving mechanism includes a lead screw 33 arranged along the length direction of the base 1. In the present embodiment, the lead screw 33 is located between the two first guide rails 102, and the first end of the lead screw 33 is rotatably connected to the first connecting plate 103, and the second end of the lead screw 33 passes through the second connecting plate 104 and extends to the outside of the base 1, and the second end of the lead screw is rotatably connected to the second connecting plate 104. A hand wheel 331 is provided at the end of the second end of the lead screw, and a transmission block 313 is fixed to the middle part of the lower end of the movable block 311. The transmission block 313 is passed through the lead screw 33 and is connected to the lead screw 33 by threaded transmission. In application, the lead screw 33 can be driven to rotate by rotating the hand wheel 331, thereby driving the transmission block 313 to drive the movable block 311 to slide on the first guide rail 102, away from or close to the three-jaw chuck 22.

[0039] In this example, see Figure 2 A first limiter is provided on the base 1, and the first limiter is used to limit the sliding range of the movable block 311. Specifically, the first limiter is a first stopper 105 arranged in the mounting groove 101. The first stopper 105 is located at the end of the first guide rail 102 close to one end of the three-jaw chuck 22, and is close to the first guide rail 102. The height of the first stopper 105 is higher than the lower edge of the first slider 312. When the first slider 312 slides to the first stopper 105, the first slider 312 abuts against the first stopper 105. The first stopper 105 hinders the movement of the first slider 312, thereby limiting the sliding range of the movable block 311 and preventing the sliding block from detaching from the first guide rail 102.

[0040] In this example, see Figures 1 to 4, a second guide rail 314 is provided on the movable block 311 along the length direction of the base 1. The number of the second guide rails 314 is two, and the two second guide rails 314 are arranged at intervals and symmetrically on both sides of the movable block 311 along the width direction of the base 1. The clamping assembly 32 includes an abutting block 321. A connecting block 322 is bolted and fixed to the lower end of the abutting block 321. A second slider 323 is provided at the lower end of the connecting block 322 corresponding to the second guide rail 314. The second slider 323 is slidably engaged with the second guide rail 314. The second driving mechanism is a linear driver provided on the movable block 311. In this embodiment, the linear driver is a cylinder 34. The driving end of the cylinder 34 is connected to the above-mentioned connecting block 322. When it is necessary to clamp the accumulator housing, the cylinder 34 is started, and the driving end of the cylinder 34 acts to drive the connecting block 322 to drive the abutting block 321 to slide on the second guide rail 314 towards the three-jaw chuck 22, so that the pressing block presses against the accumulator housing to clamp the accumulator housing.

[0041] In this embodiment, please refer to Figures 1 to 4 , an abutting head 3211 is provided on the abutting block 321. The abutting head 3211 is used to press against the accumulator housing. The abutting head 3211 is rotatably connected to the abutting block 321 through a rotating bearing. In this embodiment, the abutting head 3211 coincides with the central axis of the three-jaw chuck 22. In practical applications, by setting the abutting head 3211 to be rotatably connected to the abutting block 321, when the three-jaw chuck drives the accumulator housing to rotate, the abutting head 3211 can follow and move, facilitating the welding of the accumulator housing.

[0042] In some embodiments, please refer to Figure 3The movable block 311 is provided with a second limiting member, and the second limiting member is used to limit the sliding range of the abutting block 321. Specifically, a clearance groove 3221 is provided at one end of the middle part of the connecting block 322 away from the three-jaw chuck 22, and the notch of the clearance groove 3221 faces the side away from the three-jaw chuck 22. Second stoppers 324 are provided on both sides of the width direction of the notch of the clearance groove 3221. One end of the second stopper 324 is connected to the connecting block 322, and the other end extends to the inside of the clearance groove 3221. In this embodiment, the second limiting member is a second mounting plate 315 arranged at the upper end of the movable block 311. The second mounting plate 315 and the movable block 311 are arranged perpendicular to each other and are located in the clearance groove 3221. The cylinder 3 The second mounting plate 315 is bolted and fixed to the second mounting plate 315. The driving end of the cylinder 34 passes through the second mounting plate 315 and is connected to the bottom of the clearance groove 3221. The width of the second mounting plate 315 is equivalent to the width of the clearance groove 3221. The spacing between the two second stoppers 324 is smaller than the width of the second mounting plate 315. In application, the cylinder 34 drives the connecting block 322 to move toward the three-jaw chuck 22, so that the second stopper 324 moves toward the second mounting plate 315. When the second stopper 324 contacts the second mounting plate 315, the second mounting plate 315 blocks the second stopper 324 from continuing to move, thereby limiting the movement of the connecting block 322 and the abutting block 321, thereby preventing the connecting block 322 from being separated from the second guide rail 314.

[0043] In some embodiments, see Figures 1 to 3 A cover plate 5 is provided at the upper end of the base 1. The cover plate 5 extends along the length direction of the base 1 and covers the top of the mounting groove 101. The movable block 311 is penetrated by the cover plate 5 and slidably connected to the cover plate 5. The clamping assembly 32 is located above the cover plate 5. By providing the cover plate 5, welding slag generated during the welding process of the accumulator shell can be prevented from falling into the mounting groove 101, thereby protecting the components in the mounting groove 101.

[0044] In some embodiments, see Figures 1 to 3 An electronic monitor 4 is provided on the first mounting plate 212. The electronic monitor 4 is used to monitor the number of rotations of the three-jaw chuck 22. There are many electronic devices on the market for detecting the number of rotations, which are not listed here. In application, the electronic monitor 4 sends a signal of the number of rotations of the three-jaw chuck 22 to the welding machine controller, and the welding machine controller controls the start and stop of the welding gun according to the signal.

[0045] In some embodiments, see Figures 1 to 3, for the convenience of operators' operation, a length scale mark 7 is provided on one side of the base 1 along its length direction, and a pointer 6 is provided on the movable block 311 corresponding to the length scale mark 7. After the specification size of the accumulator housing changes, with the help of the pointer 6 and the length scale mark 7, operators can quickly adjust the position of the movable block 311 so that the working distance between the abutting block 321 and the three-jaw chuck 22 matches the accumulator housing after the specification change.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Energy storage welding fixture, characterized in that, include: Base (1); A radial clamping mechanism (2), the radial clamping mechanism (2) being arranged at one end of the base (1) in the length direction, the radial clamping mechanism (2) clamping the accumulator housing to limit the radial degree of freedom of the accumulator housing; An axial clamping mechanism (3), the axial clamping mechanism (3) being arranged on the base (1) and being arranged opposite to the radial clamping mechanism (2), the axial clamping mechanism (3) comprising a pre-tightening component (31) and a clamping component (32), the pre-tightening component (31) being slidably arranged on the base (1) along the length direction of the base (1), and the clamping component (32) being slidably arranged on the pre-tightening component (31) along the length direction of the base (1); A first driving mechanism, arranged on the base (1), the first driving mechanism being used to drive the pre-tightening component (31) to slide so as to adjust the distance between the pre-tightening component (31) and the radial clamping mechanism (2); A second driving mechanism is arranged on the pre-tightening assembly (31), and is used to drive the clamping assembly (32) to slide, so as to press the accumulator housing between the radial clamping mechanism (2) and the pre-tightening assembly (31), thereby limiting the axial freedom of the accumulator housing.

2. The accumulator welding fixture according to claim 1, characterized in that, The radial clamping mechanism (2) comprises: A mounting frame (21), wherein the mounting frame (21) is fixedly connected to the base (1); A three-jaw chuck (22), the three-jaw chuck (22) comprising a clamping end and a connecting end arranged opposite to each other, the clamping end being arranged toward the axial clamping mechanism (3), the clamping end being used for clamping the accumulator housing, the connecting end being bolted and fixed with a rotating shaft (23), the rotating shaft (23) being rotatably connected to the mounting frame (21); A driving motor (24), wherein the driving motor (24) is mounted on the mounting frame (21), and a driving end of the driving motor (24) is drivingly connected to the rotating shaft (23) for driving the rotating shaft (23) to drive the three-jaw chuck (22) to rotate.

3. The accumulator welding fixture according to claim 2, wherein, The base (1) is provided with a first guide rail (102) along its length direction; the pre-tightening assembly (31) comprises a movable block (311) slidably arranged on the first guide rail (102); the clamping assembly (32) is slidably arranged on the movable block (311); the first driving mechanism comprises a lead screw (33) arranged along the length direction of the base (1); the lead screw (33) is rotatably connected to the base (1); the movable block (311) is passed through the lead screw (33) and is connected to the lead screw (33) through a threaded transmission; the lead screw (33) is rotated to drive the movable block (311) to slide on the first guide rail (102) so as to move away from or close to the radial clamping mechanism (2).

4. The accumulator welding fixture according to claim 3, characterized in that, A second guide rail (314) is provided on the movable block (311) along the length direction of the base (1). The clamping assembly (32) includes an abutting block (321) slidably arranged on the second guide rail (314). The second driving mechanism is a linear driver arranged on the movable block (311), and the driving end of the linear driver is connected to the abutting block (321). When the linear driver operates, it drives the abutting block (321) to slide and press against the accumulator housing.

5. The accumulator welding fixture according to claim 4, wherein An abutting head (3211) is provided on the abutting block (321). The abutting head (3211) is used to press against the accumulator housing. The abutting head (3211) is rotatably connected to the abutting block (321), and the central axis of the abutting head (3211) coincides with that of the three-jaw chuck (22).

6. The accumulator welding fixture according to claim 3, wherein, A first limiting member is provided on the base (1). The first limiting member is used to limit the sliding range of the movable block (311).

7. The accumulator welding fixture according to claim 4, characterized in that, A second limiting member is provided on the movable block (311). The second limiting member is used to limit the sliding range of the abutting block (321).

8. The accumulator welding fixture according to claim 2, wherein An electronic monitor (4) is provided on the mounting bracket (21). The electronic monitor (4) is used to monitor the number of rotation turns of the three-jaw chuck (22).

9. The accumulator welding fixture according to claim 3, wherein, An installation groove (101) is provided on the upper end surface of the base (1) along its length direction. The first guide rail (102) is arranged in the installation groove (101). A cover plate (5) is provided at the upper end of the base (1). The cover plate (5) extends along the length direction of the base (1) and covers above the installation groove (101). The movable block (311) passes through the cover plate (5) and is slidably connected to the cover plate (5). The clamping assembly (32) is located above the cover plate (5).

10. The accumulator welding fixture according to claim 1, characterized in that, A length scale mark (7) is provided on one side of the base (1) along its length direction. A pointer (6) corresponding to the length scale mark (7) is provided on the clamping assembly (32).

Images