Cylindrical battery tab welding tool

Abstract

The application relates to the technical field of cylindrical batteries, in particular to a cylindrical battery tab welding tool. The tool comprises a base, a rotating disc rotatably arranged on the base, a cam disc fixedly arranged on the base outside the circumferential side of the rotating disc, a protruding part and a recessed part arranged on the edge of the upper surface of the cam disc, and the two sides of the protruding part and the recessed part are connected through inclined parts; a gasket is fixedly arranged on the upper side of the rotating disc, a reference disc is fixedly arranged on the upper side of the gasket, a plurality of battery grooves and welding grooves are evenly arranged on the edge of the upper surface of the reference disc along the circumference, an elastic pressing part is arranged on the reference disc above each welding groove, an elastic jacking part is arranged on the reference disc below the elastic pressing part, a roller is arranged on the bottom of the elastic jacking part, and the roller is in rolling contact with the edge of the upper surface of the cam disc. Since the reference disc and the cam disc are circular, the other side can be used for feeding and discharging work when one side is welded, the welding and the feeding and discharging work can be synchronously carried out, and therefore the welding efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cylindrical battery technology, and more particularly to a cylindrical battery tab welding fixture. Background Technology

[0002] Currently, in the manufacturing process of cylindrical batteries, blank foil materials for the positive and negative electrode sheets will be led out with tabs. It is necessary to first pre-weld the tabs to the electrode foil materials to form a current conduction channel. The welding fixtures currently used generally involve workers loading the materials, then starting the fixture to press the tabs together, and then welding. After welding is completed, the fixture is started again to loosen the tabs, and finally workers unload the materials. This process of welding the tabs is repeated. This welding fixture cannot achieve simultaneous loading, welding, and unloading, resulting in low welding efficiency. There is currently no good solution to the above problems.

[0003] In summary, the aforementioned problems in the welding process of the tabs and electrode foils of cylindrical batteries have become a technical challenge that urgently needs to be solved in the industry. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention provides a cylindrical battery tab welding fixture, which solves the problem of low welding efficiency caused by the inability of previous tab welding fixtures to simultaneously perform loading, welding, and unloading.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A cylindrical battery tab welding fixture includes a base, on which a rotating disk is rotatably mounted. The rotating disk is connected to a drive mechanism located on one side of the base. A cam disk is fixedly mounted on the base outside the circumference of the rotating disk. The upper surface edge of the cam disk has a protrusion and a recess, and the two sides of the protrusion and the recess are respectively connected by an inclined portion. The protrusion, the recess, and the inclined portion form a ring shape. A washer is fixed on the upper side of the rotating disk, and a reference disk is fixed on the upper side of the washer. The upper surface edge of the reference disk has a plurality of battery slots and welding slots evenly arranged along the circumference. An elastic clamping component is installed on the reference disk above each welding slot. The elastic clamping component is used to clamp the tab in the welding slot. An elastic lifting component is installed on the reference disk directly below the elastic clamping component. The bottom of the elastic lifting component has a roller. The roller makes rolling contact with the upper surface edge of the cam disk. The elastic lifting component is used to control the rising or falling of the elastic clamping component.

[0006] The elastic clamping component includes a support frame fixed on a reference plate, an upper sleeve vertically mounted on the support frame, a pressure rod vertically slidably mounted inside the upper sleeve, an upper compression spring between the top of the pressure rod and the top of the upper sleeve, a limiting groove on the side of the pressure rod, a limiting rod matching the limiting groove on the side of the upper sleeve, and a pressure plate fixed at the bottom of the pressure rod, with a through hole for the laser to pass through on the pressure plate.

[0007] The elastic lifting component includes a lower sleeve fixed in a reference plate, a top rod vertically slidably installed in the lower sleeve, the top rod and the pressure rod are aligned vertically, a lower compression spring is provided between the top of the top rod and the top of the lower sleeve, a limiting groove is provided on the side of the top rod, a limiting rod that matches the limiting groove is provided on the side of the lower sleeve, and a roller is installed at the bottom of the top rod through a rotating shaft.

[0008] The drive mechanism includes a motor, and a worm gear is mounted on the output shaft of the motor. The worm gear meshes with a gear on the side of the rotating disk.

[0009] The rotating disk, washer, and reference disk are fixedly connected by long bolts.

[0010] The present invention adopts the above-described solution and has the following advantages: The rotating disk drives the reference disk to rotate synchronously. Each welding slot on the reference disk is equipped with an elastic clamping component and an elastic lifting component. The bottom of the elastic lifting component rolls into contact with the cam disk via rollers. When the rollers move to the protruding part of the cam disk, the push rod of the elastic lifting component moves upward, lifting the pressure rod of the elastic clamping component upward. The pressure rod then lifts the pressure plate upward, allowing workers to load or unload materials into the corresponding battery slots and welding slots. When the rollers move to the recessed part of the cam disk, the push rod of the elastic lifting component moves downward, and the pressure rod of the elastic clamping component loses its upward force. Under the elastic action of the upper compression spring, the pressure plate moves downward, pressing the electrode tabs and electrode foils in the welding slots together, allowing welding to proceed. Since both the reference disk and the cam disk are circular, welding on one side allows loading and unloading on the other side, enabling simultaneous welding and loading / unloading operations, thus greatly improving welding efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a partially enlarged structural schematic diagram of the present invention.

[0013] Figure 3 for Figure 2 A top-view structural diagram.

[0014] Figure 4 This is a top view of the cam structure of the present invention.

[0015] Figure 5for Figure 4 A cross-sectional structural diagram.

[0016] Figure 6 This is a three-dimensional structural diagram of the turntable part of the present invention.

[0017] In the diagram, 1. Base, 2. Rotary disk, 3. Cam disk, 4. Protrusion, 5. Recess, 6. Inclined part, 7. Washer, 8. Reference disk, 9. Battery slot, 10. Welding slot, 11. Elastic clamping component, 12. Elastic lifting component, 13. Support frame, 14. Upper sleeve, 15. Pressure rod, 16. Upper compression spring, 17. Limiting groove, 18. Limiting rod, 19. Pressure plate, 20. Lower sleeve, 21. Top rod, 22. Lower compression spring, 23. Roller, 24. Motor, 25. Long bolt. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0019] like Figure 1-6 As shown, a cylindrical battery tab welding fixture includes a base 1, on which a rotating disk 2 is rotatably mounted. The rotating disk 2 is connected to a drive mechanism located on one side of the base 1. A cam disk 3 is fixedly mounted on the base 1 on the outer circumference of the rotating disk 2. The upper surface edge of the cam disk 3 has a protrusion 4 and a recess 5. The two sides of the protrusion 4 and the recess 5 are respectively connected by an inclined portion 6. The protrusion 4, the recess 5, and the inclined portion 6 together form a ring shape. A washer 7 is fixed on the upper side of the rotating disk 2, and a reference disk 8 is fixed on the upper side of the washer 7. The upper surface edge of the reference plate 8 is evenly provided with several battery slots 9 and welding slots 10. An elastic pressing component 11 is installed on the reference plate 8 above each welding slot 10. The elastic pressing component 11 is used to press the electrode tabs in the welding slot 10. An elastic lifting component 12 is installed on the reference plate 8 directly below the elastic pressing component 11. The bottom of the elastic lifting component 12 is provided with a roller 23. The roller 23 rolls in contact with the upper surface edge of the cam plate 3. The elastic lifting component 12 is used to control the rise or fall of the elastic pressing component 11.

[0020] The elastic clamping component 11 includes a support frame 13 fixed on the reference plate 8. An upper sleeve 14 is vertically mounted on the support frame 13. A pressure rod 15 is vertically slidably mounted inside the upper sleeve 14. An upper compression spring 16 is provided between the top of the pressure rod 15 and the top of the upper sleeve 14. A limiting groove 17 is provided on the side of the pressure rod 15. A limiting rod 18 that cooperates with the limiting groove 17 is provided on the side of the upper sleeve 14, which can limit and guide the up and down movement of the pressure rod 15. A pressure plate 19 is fixed at the bottom of the pressure rod 15. The pressure plate 19 is provided with a through hole for the laser to pass through. In the natural state, under the elastic action of the upper compression spring 16, the pressure rod 15 will move down to the lower stop point. At this time, the pressure plate 19 can press the electrode tab and the electrode foil in the welding groove 10 tightly before welding.

[0021] The elastic lifting component 12 includes a lower sleeve 20 fixed inside the reference plate 8. A top rod 21 is vertically slidably installed inside the lower sleeve 20. The top rod 21 is vertically aligned with the pressure rod 15. A lower compression spring 22 is provided between the top of the top rod 21 and the top of the lower sleeve 20. A limiting groove 17 is provided on the side of the top rod 21, and a limiting rod 18 that cooperates with the limiting groove 17 is provided on the side of the lower sleeve 20, which can limit and guide the vertical movement of the top rod 21. A roller 23 is installed at the bottom of the top rod 21 through a rotating shaft. The roller 23 is connected to the cam plate. 3. Rolling contact: When the roller 23 moves to the protrusion 4 of the cam disk 3, the push rod 21 moves upward and pushes the pressure rod 15 upward. The pressure rod 15 drives the pressure plate 19 to lift upward. At this time, the operator can perform loading or unloading work in the corresponding battery slot 9 and welding slot 10. When the roller 23 moves to the recess 5 of the cam disk 3, the push rod 21 moves downward and the pressure rod 15 loses its upward force. Under the elastic action of the upper compression spring 16, the pressure plate 19 moves downward and can press the electrode tab and electrode foil in the welding slot 10 tightly.

[0022] The driving mechanism includes a motor 24, with a worm gear mounted on the output shaft of the motor 24. The worm gear meshes with a gear on the side of the rotating disk 2, and the motor 24 drives the rotating disk 2 to rotate through the worm gear transmission.

[0023] The rotating disk 2, washer 7 and reference disk 8 are fixedly connected by long bolts 25.

[0024] Working principle: During operation, motor 24 drives rotating disk 2 to rotate via worm gear transmission. Rotating disk 2 drives reference disk 8 to rotate synchronously. When reference disk 8 rotates, it drives elastic pressing component 11 and elastic lifting component 12 on it to rotate synchronously. Since the roller 23 at the bottom of elastic lifting component 12 is in rolling contact with cam disk 3, when roller 23 moves to the protrusion 4 of cam disk 3, push rod 21 moves upward and pushes pressure rod 15 upward. At this time, upper compression spring 16 and lower compression spring 22 are compressed. Pressure rod 15 moves upward and drives pressure plate 19 to lift upward. At this time, the operator can... The battery slot 9 and welding slot 10 are used for loading or unloading. When the roller 23 moves to the recess 5 of the cam plate 3, the push rod 21 moves downward under the action of the lower compression spring 22, and the pressure rod 15 loses its upward force. Under the action of the upper compression spring 16, the pressure rod 15 drives the pressure plate 19 to move downward, which can press the electrode tab and electrode foil in the welding slot 10 tightly. At this time, welding can be carried out. Since the reference plate 8 and the cam plate 3 are both circular, the other side can be used for loading and unloading when welding on one side. Welding and loading and unloading can be carried out simultaneously, thereby greatly improving welding efficiency.

[0025] The above specific embodiments should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0026] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A welding fixture for cylindrical battery tabs, characterized in that: The device includes a base on which a rotating disk is rotatably mounted. The rotating disk is connected to a drive mechanism located on one side of the base. A cam disk is fixedly mounted on the base outside the circumference of the rotating disk. The upper surface edge of the cam disk has a protrusion and a recess, which are connected by inclined sections on both sides. The protrusion, recess, and inclined sections together form a ring shape. A washer is fixed on the upper side of the rotating disk, and a reference disk is fixed on the upper side of the washer. Several battery slots and welding slots are evenly distributed along the circumference of the upper surface edge of the reference disk. An elastic clamping component is installed on the reference disk above each welding slot. The elastic clamping component is used to clamp the tabs in the welding slot. An elastic lifting component is installed on the reference disk directly below the elastic clamping component. The bottom of the elastic lifting component has a roller that rolls in contact with the upper surface edge of the cam disk. The elastic lifting component is used to control the raising or lowering of the elastic clamping component.

2. The cylindrical battery tab welding fixture according to claim 1, characterized in that: The elastic clamping component includes a support frame fixed on a reference plate, an upper sleeve vertically mounted on the support frame, a pressure rod vertically slidably mounted inside the upper sleeve, an upper compression spring between the top of the pressure rod and the top of the upper sleeve, a limiting groove on the side of the pressure rod, a limiting rod matching the limiting groove on the side of the upper sleeve, and a pressure plate fixed at the bottom of the pressure rod, with a through hole for the laser to pass through on the pressure plate.

3. The cylindrical battery tab welding fixture according to claim 1, characterized in that: The elastic lifting component includes a lower sleeve fixed in a reference plate, a top rod vertically slidably installed in the lower sleeve, the top rod and the pressure rod are aligned vertically, a lower compression spring is provided between the top of the top rod and the top of the lower sleeve, a limiting groove is provided on the side of the top rod, a limiting rod that matches the limiting groove is provided on the side of the lower sleeve, and a roller is installed at the bottom of the top rod through a rotating shaft.

4. The cylindrical battery tab welding fixture according to claim 1, characterized in that: The drive mechanism includes a motor, and a worm gear is mounted on the output shaft of the motor. The worm gear meshes with a gear on the side of the rotating disk.

5. The cylindrical battery tab welding fixture according to claim 1, characterized in that: The rotating disk, washer, and reference disk are fixedly connected by long bolts.

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