A welding fixture for lead-acid battery processing

Abstract

The present invention relates to the technical field of welding fixtures, and discloses a welding fixture for processing lead-acid batteries, including a base plate, the upper surface of the base plate is respectively fixedly connected to two mounting plates, a plurality of clamping plates are arranged between the two mounting plates, and two sliding rods penetrating the plurality of clamping plates are arranged between the two mounting plates, and the sliding rods are rotatably connected to the mounting plates. The present invention is used in conjunction with the setting of sliding rods, clamping plates and limiting supports, etc. When in use, firstly, the pole group to be compressed and fixed is placed between the plurality of clamping plates, and a pole group is placed between each adjacent clamping plate, and then the cylinder is started, so that the cylinder pushes the plurality of clamping plates closer to each other, and then the clamping plates clamp the pole group, so that multiple pole groups can be clamped at one time, and when welding, multiple pole groups can be welded at one time to improve the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, in particular to a welding fixture for processing lead-acid batteries. Background Art

[0002] When producing and processing lead-acid batteries, the battery pole groups need to be welded together. The pole groups are composed of multiple pole plates. In order to fix the pole plates during welding, relevant auxiliary welding fixtures are required. The pole groups composed of multiple pole plates are compressed and clamped together by the fixtures for welding.

[0003] In a lead-acid battery casting welding fixture disclosed by the authorization announcement number CN219746756U, a base is included, a support leg is fixed at the lower end of the base, a threaded rod is rotatably connected inside the base, a rotating disk is fixed on the outer side of the threaded rod, a rotating rod is fixed on the rotating disk, a movable plate is threadedly connected on the threaded rod, a connecting plate is fixed on the movable plate, a clamping mechanism for fixing the lead-acid battery is fixed on the upper end of the connecting plate, a support platform is fixed on the upper end of the base, and the clamping mechanism is located directly above the support platform. The present invention has a simple structure and is easy to operate. The rotating rod on one side can drive the clamping plate to move at the same time, fix the lead-acid battery on the upper end of the support platform, and fix the lead-acid battery position at the middle position of the support platform, so as to facilitate the centering work and improve the welding efficiency of the lead-acid battery; as the above-mentioned fixture, when in use, one fixture can only clamp one pole group at a time, so when welding, only one pole group can be welded at one time, which will affect the welding efficiency.

[0004] Therefore, we propose a welding fixture for lead-acid battery processing to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a welding fixture for lead-acid battery processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A welding fixture for processing lead-acid batteries, comprising a bottom plate, two mounting plates are fixedly connected to the upper surface of the bottom plate, a plurality of clamping plates are arranged between the two mounting plates, and two sliding rods penetrating the plurality of clamping plates are arranged between the two mounting plates, the sliding rods are rotatably connected to the mounting plates, and a limited support is arranged between the plurality of clamping plates;

[0008] The limiting support member includes a sleeve fixedly connected to the splint, and the sleeve is slidably sleeved on the outer wall of the slide rod, the outer wall threaded tube of the sleeve is provided with a threaded tube, and an annular groove is opened at one end of the threaded tube, and a spring is fixedly connected to the inner wall of the annular groove, the outer wall of the sleeve is fixedly connected to a screw sleeve, and one side wall of the screw sleeve is abutted against the threaded tube, and one side wall of the mounting plate is fixedly connected to a cylinder, and one end of the cylinder is fixedly connected to the splint.

[0009] Preferably, the outer wall of the screw sleeve is fixedly connected with a plurality of teeth, and one side wall of the mounting plate is rotatably connected with two tooth rods, and the two tooth rods are engaged with the teeth, one end of the tooth rod passes through the mounting plate and extends to the other side of the mounting plate, and one end of the two tooth rods located on the other side of the mounting plate are fixedly connected with gears, and the outer walls of the two gears engage with the chain.

[0010] Preferably, one end of the two sliding rods passes through the mounting plate and extends to the other side of the mounting plate, a control component is provided at one end of the sliding rod located on the other side of the mounting plate, a sliding groove is provided on the outer walls of the two sliding rods, a sliding block is provided in the threaded tube, and the sliding block is slidably connected to the inner wall of the sliding groove.

[0011] Preferably, the control component includes a worm gear fixedly connected to one end of the sliding rod, a side wall of one side of the mounting plate is fixedly connected to a shell, and the inner wall of the shell is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly sleeved with a worm, and the worm is meshed with the worm wheel, one end of the rotating shaft passes through the shell and extends to the outside of the shell, and one end of the rotating shaft located outside the shell is fixedly connected to a first turntable.

[0012] Preferably, a strip groove is formed on the outer wall of one of the threaded tubes, and scale lines are marked on the inner wall of the strip groove.

[0013] Preferably, the outer wall of the clamping plate is rotatably connected with a swivel, and a side wall of the swivel is fixedly connected to a spring.

[0014] Preferably, a second rotating disk is fixedly connected to the outer wall of one of the gears.

[0015] Preferably, a slip ring is fixedly connected to the inner wall of one end of the threaded tube, and the slip ring is slidably sleeved on the outer wall of the slide rod, and the slide block is fixedly connected to the inner wall of the slip ring.

[0016] Preferably, a plurality of limit rods are arranged between the two erection plates, and the plurality of limit rods are arranged in a U-shaped route, the plurality of limit rods are all arranged through the clamping plate, and the limit rods are slidably connected to the clamping plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cooperates with the setting of sliding rods, clamps and limiting supports. When in use, firstly, the pole group to be compressed and fixed is placed between a plurality of clamps, with one pole group placed between each adjacent clamp. Then, the cylinder is started to push the plurality of clamps toward each other, so that the clamps clamp the pole group. In this way, a plurality of pole groups can be clamped at one time. When welding, a plurality of pole groups can be welded at one time to improve the welding efficiency.

[0019] 2. The present invention sets an annular groove. When the clamps are close to each other, the spring is squeezed and retracted into the annular groove. After the spring is completely retracted into the annular groove, the sleeve and the threaded tube cooperate to support the two clamps to limit the distance that the two clamps can be close to each other. In this way, the thickness of the pole group after being compressed can be ensured. At the same time, when the clamps clamp the pole group, the annular groove is set to accommodate the spring, which can avoid the problem of the spring being damaged due to excessive compression.

[0020] 3. In the present invention, when welding pole groups of different thicknesses, the threaded sleeve can be unscrewed, and then the threaded tube can be rotated to adjust the length that the sleeve and the threaded tube can support, so that the device can clamp pole groups of different thicknesses to improve the practicality of the device. When the threaded sleeve is unscrewed, by setting teeth, gear rods and gears for use, one of the gears can be rotated by the second turntable, and the rotating gear drives one of the gear rods to rotate. At the same time, the rotating gear can also drive another gear rod to rotate through a chain and another gear. The two rotating gear rods can drive multiple sleeves to rotate through the teeth to loosen multiple sleeves at the same time, which is convenient for adjustment of the device.

[0021] 4. The present invention, by setting a slide groove, a slider and a control component, can control the rotation of two slide bars through the control component. The rotating slide bar drives multiple threaded tubes to rotate and move through the slider to adjust the length of the threaded tube and the sleeve, and then adjust the length that the threaded tube and the sleeve can support, so that the device can clamp pole groups of different thicknesses, thereby improving the practicality of the device. To adjust the length of the sleeves and threaded tubes of multiple support limiters, it is only necessary to rotate a first turntable, which further facilitates the adjustment of the device.

[0022] 5. The present invention, by setting a worm wheel and a worm etc. for use in conjunction, when the slide rod and the threaded tube are rotated, the first turntable is rotated, the rotating first turntable drives the rotating shaft to rotate, the rotating shaft drives the worm to rotate, the rotating worm drives the worm wheel to rotate, the rotating worm wheel drives the slide rod and the threaded tube to rotate, and due to the self-locking property of the worm wheel and the worm wheel, when the screw sleeve is rotated, the threaded tube, the slide rod and the worm wheel will not rotate with it. Therefore, when the screw sleeve is rotated, there is no need to hold the threaded tube, which further facilitates the adjustment of the device. At the same time, when adjusting, the adjusted length of the threaded tube and the slide rod can be intuitively seen through the scale line. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a welding fixture for lead-acid battery processing proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a welding fixture for lead-acid battery processing proposed by the present invention;

[0025] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 5 A schematic diagram of the side section structure of a welding fixture for lead-acid battery processing proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the front cross-section structure of a welding fixture for lead-acid battery processing proposed by the present invention;

[0029] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0030] Figure 8 This is a schematic cross-sectional structural diagram of the housing proposed by the present invention.

[0031] In the figure: 1. base plate; 2. mounting plate; 3. clamping plate; 4. sliding rod; 5. casing; 6. threaded tube; 7. annular groove; 8. spring; 9. screw sleeve; 10. cylinder; 11. teeth; 12. gear rod; 13. gear; 14. chain; 15. sliding groove; 16. slider; 17. worm gear; 18. housing; 19. rotating shaft; 20. worm; 21. first turntable; 22. strip groove; 23. scale line; 24. rotating ring; 25. second turntable; 26. slip ring; 27. limit rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example

[0034] See also Figure 1-Figure 8A welding fixture for processing lead-acid batteries, comprising a bottom plate 1, two mounting plates 2 are fixedly connected to the upper surface of the bottom plate 1, characterized in that a plurality of clamping plates 3 are arranged between the two mounting plates 2, and two sliding rods 4 penetrating the plurality of clamping plates 3 are arranged between the two mounting plates 2, the sliding rods 4 are rotatably connected to the mounting plates 2, and a limited support is arranged between the plurality of clamping plates 3;

[0035] The limiting support member includes a sleeve 5 fixedly connected to the splint 3, and the sleeve 5 is slidably sleeved on the outer wall of the slide rod 4, the outer wall threaded tube of the sleeve 5 is provided with a threaded tube 6, and one end of the threaded tube 6 is provided with an annular groove 7, the inner wall of the annular groove 7 is fixedly connected with a spring 8, the outer wall of the sleeve 5 is fixedly connected with a screw sleeve 9, and one side wall of the screw sleeve 9 is abutted against the threaded tube 6, one side wall of the mounting plate 2 is fixedly connected with a cylinder 10, and one end of the cylinder 10 is fixedly connected to the splint 3.

[0036] It can be seen from the above structure that: by setting the slide bar 4, the clamping plate 3 and the limit support member, etc., when in use, first put the pole group to be compressed and fixed between the multiple clamping plates 3, and place one pole group between each adjacent clamping plate 3, and then start the cylinder 10, so that the cylinder 10 pushes the multiple clamping plates 3 to approach each other, and then the clamping plates 3 clamp the pole group, so that multiple pole groups can be clamped at one time, and when welding, multiple pole groups can be welded at one time to improve the welding efficiency;

[0037] When the clamping plates 3 are close to each other, the spring 8 is squeezed and retracted into the annular groove 7. After the spring 8 is completely retracted into the annular groove 7, the sleeve 5 and the threaded tube 6 cooperate to support the two clamping plates 3 to limit the distance that the two clamping plates 3 can approach, so as to ensure the thickness of the pole group after being compressed. At the same time, when the clamping plates 3 clamp the pole group, the annular groove 7 is set to accommodate the spring 8, which can avoid the problem of the spring 8 being damaged by excessive compression.

[0038] When welding pole groups of different thicknesses, the screw sleeve 9 can be unscrewed, and then the threaded tube 6 can be rotated to adjust the length that the sleeve 5 and the threaded tube 6 can support, so that the device can clamp pole groups of different thicknesses to improve the practicability of the device.

[0039] Furthermore, a plurality of teeth 11 are fixedly connected to the outer wall of the screw sleeve 9, and two tooth rods 12 are rotatably connected to the side wall of one side of the mounting plate 2, and the two tooth rods 12 are meshed with the teeth 11, and one end of the tooth rod 12 passes through the mounting plate 2 and extends to the other side of the mounting plate 2. One end of the two tooth rods 12 located on the other side of the mounting plate 2 is fixedly connected to a gear 13, and the outer walls of the two gears 13 are meshed with a chain 14; by setting the teeth 11, the tooth rod 12 and the gear 13 for use, when the screw sleeve 9 is turned away, one of the gears 13 can be rotated by the second turntable 25, and the rotating gear 13 drives one of the tooth rods 12 to rotate. At the same time, the rotating gear 13 can also drive another tooth rod 12 to rotate through the chain 14 and another gear 13, and the two rotating tooth rods 12 can drive multiple screw sleeves 9 to rotate through the teeth 11, so as to loosen multiple screw sleeves 9 at the same time, which is convenient for the adjustment of the device.

[0040] Furthermore, one end of the two slide bars 4 passes through the mounting plate 2 and extends to the other side of the mounting plate 2. A control component is provided at one end of the slide bar 4 located on the other side of the mounting plate 2. A slide groove 15 is provided on the outer wall of the two slide bars 4. A slider 16 is provided in the threaded tube 6, and the slider 16 is slidably connected to the inner wall of the slide groove 15. By providing the slide groove 15, the slider 16 and the control component, the two slide bars 4 can be controlled to rotate by the control component. The rotating slide bar 4 drives multiple threaded tubes 6 to rotate and move through the slider 16 to adjust the length of the threaded tube 6 and the sleeve 5, and then adjust the length that the threaded tube 6 and the sleeve 5 can support, so that the device can clamp pole groups of different thicknesses, thereby improving the practicability of the device. To adjust the length of the sleeves 5 and the threaded tubes 6 of multiple support limit members, it is only necessary to rotate a first turntable 21, which further facilitates the adjustment of the device.

[0041] Furthermore, the control assembly includes a worm wheel 17 fixedly connected to one end of the slide rod 4, a housing 18 is fixedly connected to a side wall of one side of the mounting plate 2, and a rotating shaft 19 is rotatably connected to the inner wall of the housing 18, a worm 20 is fixedly sleeved on the outer wall of the rotating shaft 19, and the worm 20 is meshed with the worm wheel 17, one end of the rotating shaft 19 passes through the housing 18 and extends to the outside of the housing 18, and one end of the rotating shaft 19 located outside the housing 18 is fixedly connected to a first rotating disk 21; by setting the worm wheel 17 and the worm 20, etc., when the slide rod 4 is rotated, the rotation of the worm wheel 17 and the worm 20 are used together. When rotating the threaded tube 6, the first turntable 21 is rotated, and the rotating first turntable 21 drives the rotating shaft 19 to rotate, and the rotating rotating shaft 19 drives the worm 20 to rotate, and the rotating worm 20 drives the worm wheel 17 to rotate, and the rotating worm wheel 17 drives the sliding rod 4 and the threaded tube 6 to rotate. Due to the self-locking property of the worm wheel 17 and the worm wheel 17, when the screw sleeve 9 is rotated, the threaded tube 6, the sliding rod 4 and the worm wheel 17 will not rotate with it. Therefore, when the screw sleeve 9 is rotated, there is no need to hold the threaded tube 6, which further facilitates the adjustment of the device.

[0042] Furthermore, a strip groove 22 is provided on the outer wall of one of the threaded tubes 6, and a scale line 23 is marked on the inner wall of the strip groove 22; by setting the strip groove 22 and the scale line 23 for use in conjunction, when adjusting, the adjusted length of the threaded tube 6 and the slide rod 4 can be intuitively seen through the scale line 23, thereby facilitating the adjustment again. When viewing the scale line 23, the adjusted length is equal to the value of the scale line 23 plus the length of the threaded tube 6.

[0043] Furthermore, the outer wall of the splint 3 is rotatably connected with a swivel 24, and one side wall of the swivel 24 is fixedly connected to the spring 8; by providing the swivel 24, the other end of the spring 8 can be easily rotated when the spring 8 rotates with the threaded tube 6.

[0044] Furthermore, a second turntable 25 is fixedly connected to the outer wall of one of the gears 13 ; by providing the second turntable 25 , one of the gears 13 can be driven to rotate by rotating the second turntable 25 .

[0045] Furthermore, a slip ring 26 is fixedly connected to the inner wall of one end of the threaded tube 6, and the slip ring 26 is slidably sleeved on the outer wall of the slide rod 4, and the slider 16 is fixedly connected to the inner wall of the slip ring 26; by setting the slip ring 26, the stability of one end of the threaded tube 6 can be increased.

[0046] Furthermore, a plurality of limit rods 27 are arranged between the two mounting plates 2, and the plurality of limit rods 27 are arranged in a U-shaped route, and the plurality of limit rods 27 are all arranged through the clamping plate 3, and the limit rods 27 are slidably connected to the clamping plate 3; by setting a plurality of limit rods 27, the plurality of limit rods 27 are arranged in a U-shaped route, so that the plurality of limit rods 27 and the clamping plate 3 can form a groove for accommodating the pole group, and after the pole group is placed in the groove, the contact surface between the pole group and the limit rod 27 is small, so as to facilitate the movement of the pole group when clamping the pole group.

[0047] In the present invention, when in use, firstly, the pole group to be compressed and fixed is placed between a plurality of clamping plates 3, with one pole group placed between each adjacent clamping plates 3, and then the cylinder 10 is started, so that the cylinder 10 pushes the plurality of clamping plates 3 closer to each other, and then the clamping plates 3 clamp the pole group, so that a plurality of pole groups can be clamped at one time, and when welding, a plurality of pole groups can be welded at one time, so as to improve the welding efficiency;

[0048] When the clamping plates 3 are close to each other, the spring 8 is squeezed and retracted into the annular groove 7. After the spring 8 is completely retracted into the annular groove 7, the sleeve 5 and the threaded tube 6 cooperate to support the two clamping plates 3 to limit the distance that the two clamping plates 3 can approach, so as to ensure the thickness of the pole group after being compressed. At the same time, when the clamping plates 3 clamp the pole group, the annular groove 7 is set to accommodate the spring 8, which can avoid the problem of the spring 8 being damaged by excessive compression.

[0049] When welding pole groups with different thicknesses, the screw sleeve 9 can be turned away, and then the threaded tube 6 can be turned to adjust the length that the sleeve 5 and the threaded tube 6 can support, so that the device can clamp pole groups with different thicknesses to improve the practicality of the device, and when the screw sleeve 9 is turned away, one of the gears 13 can be rotated by the second rotating disk 25, and the rotating gear 13 drives one of the gear rods 12 to rotate, and at the same time, the rotating gear 13 can also drive another gear rod 12 to rotate through the chain 14 and another gear 13, and the two rotating gear rods 12 can drive multiple screw sleeves 9 to rotate through the teeth 11 to loosen the screw sleeve 9;

[0050] After the screw sleeve 9 is loosened, the first rotating disk 21 can be rotated, and the rotating first rotating disk 21 drives the rotating shaft 19 to rotate, and the rotating rotating shaft 19 drives the worm 20 to rotate, and the rotating worm 20 drives the worm wheel 17 to rotate, and the rotating worm wheel 17 drives the sliding rod 4 to rotate, and the rotating sliding rod 4 drives the threaded tube 6 to rotate, and the threaded tube 6 can be rotated to move the threaded tube 6 to adjust the length of the threaded tube 6 and the sleeve 5, and then adjust the length that the threaded tube 6 and the sleeve 5 can support, so that the device can clamp pole groups of different thicknesses, thereby improving the practicality of the device, and then the second rotating disk 25 can be reversed to re-tighten the screw sleeve 9. The above-mentioned loosening and fixing of multiple screw sleeves 9 only requires rotating one second rotating disk 25, and adjusting the length of the sleeves 5 and the threaded tubes 6 of multiple support limiters only requires rotating one first rotating disk 21, so that the device is convenient and quick when adjusting;

[0051] And because of the self-locking property of the worm gear 17, when the screw sleeve 9 is rotated, the threaded tube 6, the slide rod 4 and the worm gear 17 will not rotate with it. Therefore, when the screw sleeve 9 is rotated, there is no need to hold the threaded tube 6, which further facilitates the adjustment of the device;

[0052] When adjusting, the adjusted length of the threaded tube 6 and the slide rod 4 can be intuitively seen through the scale line 23, which further facilitates the adjustment. When watching the scale line 23, the adjusted length is equal to the value of the scale line 23 plus the length of the threaded tube 6.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for processing lead-acid batteries, comprising a base plate (1), wherein the upper surface of the base plate (1) is respectively fixedly connected to two mounting plates (2), characterized in that: A plurality of clamping plates (3) are arranged between the two mounting plates (2), and two sliding rods (4) penetrating the plurality of clamping plates (3) are arranged between the two mounting plates (2), the sliding rods (4) being rotatably connected to the mounting plates (2), and a limited support member is arranged between the plurality of clamping plates (3); The position-limiting support member comprises a sleeve (5) fixedly connected to the clamping plate (3), and the sleeve (5) is slidably sleeved on the outer wall of the slide rod (4); the outer wall threaded tube of the sleeve (5) is provided with a threaded tube (6), and one end of the threaded tube (6) is provided with an annular groove (7); the inner wall of the annular groove (7) is fixedly connected with a spring (8); the outer wall of the sleeve (5) is fixedly connected with a threaded sleeve (9), and one side wall of the threaded sleeve (9) abuts against the threaded tube (6); the side wall of one side of the mounting plate (2) is fixedly connected with a cylinder (10), and one end of the cylinder (10) is fixedly connected to the clamping plate (3); The outer wall of the screw sleeve (9) is fixedly connected to a plurality of teeth (11); one side wall of the mounting plate (2) is rotatably connected to two toothed rods (12), and the two toothed rods (12) are meshed with the teeth (11); one end of the toothed rod (12) passes through the mounting plate (2) and extends to the other side of the mounting plate (2); one end of the two toothed rods (12) located on the other side of the mounting plate (2) is fixedly connected to a gear (13); the outer walls of the two gears (13) are meshed with a chain (14).

2. A welding fixture for lead-acid battery processing according to claim 1, characterized in that: One end of the two slide bars (4) passes through the mounting plate (2) and extends to the other side of the mounting plate (2); a control component is provided at one end of the slide bar (4) located on the other side of the mounting plate (2); a slide groove (15) is provided on the outer wall of the two slide bars (4); a slide block (16) is provided in the threaded tube (6), and the slide block (16) is slidably connected to the inner wall of the slide groove (15).

3. A welding fixture for lead-acid battery processing according to claim 2, characterized in that: The control assembly comprises a worm gear (17) fixedly connected to one end of the slide rod (4); a side wall of one side of the mounting plate (2) is fixedly connected to a housing (18); an inner wall of the housing (18) is rotatably connected to a rotating shaft (19); a worm (20) is fixedly sleeved on the outer wall of the rotating shaft (19); the worm (20) is meshed with the worm gear (17); one end of the rotating shaft (19) passes through the housing (18) and extends to the outside of the housing (18); and one end of the rotating shaft (19) located outside the housing (18) is fixedly connected to a first rotating disk (21).

4. A lead-acid battery processing welding fixture according to claim 2, characterized in that: A strip groove (22) is formed on the outer wall of one of the threaded tubes (6), and a scale line (23) is marked on the inner wall of the strip groove (22).

5. A welding fixture for lead-acid battery processing according to claim 1, characterized in that: The outer wall of the clamping plate (3) is rotatably connected to a swivel ring (24), and a side wall of the swivel ring (24) is fixedly connected to a spring (8).

6. A welding fixture for lead-acid battery processing according to claim 2, characterized in that: A second rotating disk (25) is fixedly connected to the outer wall of one of the gears (13).

7. A welding fixture for lead-acid battery processing according to claim 2, characterized in that: A slip ring (26) is fixedly connected to the inner wall of one end of the threaded tube (6), and the slip ring (26) is slidably sleeved on the outer wall of the slide rod (4), and the slide block (16) is fixedly connected to the inner wall of the slip ring (26).

8. A welding fixture for lead-acid battery processing according to claim 1, characterized in that: A plurality of limit rods (27) are arranged between the two erection plates (2), and the plurality of limit rods (27) are arranged in a U-shaped line. The plurality of limit rods (27) are all arranged through the clamping plate (3), and the limit rods (27) are slidably connected to the clamping plate (3).

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