Tab puncher

Abstract

The utility model provides a kind of tab punching cutter, including base, for supporting overall structure;Lower mould, it is fixed on the base, its top is equipped with punching mesa, the punching mesa is equipped with with tab material belt quantity matching punching groove, the import end and export end of the punching groove are equipped with downward inclined inclined surface, the inclined surface is used to guide the tab piece after cutting to discharge;Upper mould, by guide rod and the lower mould sliding connection, the upper mould bottom is equipped with with the punching cutter body corresponding to the punching groove.The utility model not only improves the punching efficiency and precision of multiple tab material belt, also avoids the common waste adhesion and tab piece stacking problem in traditional process through inclined surface design, while simplifying operation process, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to a tab punching tool. Background Technology

[0002] In the manufacturing process of lithium-ion batteries and other battery cells, the tabs are key components connecting the internal and external circuits of the cell, and their processing accuracy directly affects battery performance. Traditional tab punching processes typically use continuous punching of a single strip of material. However, with the increasing popularity of multi-tab battery designs, it is necessary to simultaneously punch multiple parallel tab strips. Existing technologies present the following prominent problems: 1) Difficulty in strip positioning: When multiple tab strips are installed side-by-side, the enclosed entry structure of the cutter makes it difficult for operators to visually observe the alignment of the strip with the cutter edge, easily leading to misaligned punching and the generation of defective products; 2) Risk of material interference: After punching, when the cutter is lifted, friction or vacuum effects can easily cause the cut tab pieces to move upwards. With a single strip, these can fall off naturally due to gravity, but with multiple parallel strips, adjacent tab pieces may stack and become stuck. When the strip continues to feed, the stacked tab pieces may be cut a second time, causing dimensional abnormalities or cutter damage. Therefore, there is an urgent need for an optimized tool structure for synchronous punching of multi-pole ear strips to solve problems such as poor positioning visibility, poor material discharge, and low efficiency. Utility Model Content

[0003] This invention provides a tab punching tool that can effectively solve the above problems.

[0004] This utility model is implemented as follows: A tab-cutting tool, including The base is used to support the overall structure. The lower mold is fixed on the base, and a punching table is provided on its top. The punching table has punching grooves that match the number of tab strips. The inlet and outlet ends of the punching grooves are provided with downward inclined surfaces, which are used to guide the cut tabs out. The upper mold is slidably connected to the lower mold via a guide rod, and the bottom of the upper mold is provided with a punching cutter body corresponding to the punching groove; A positioning block is disposed below the upper mold and is used to limit the punching blade body.

[0005] The beneficial effects of this utility model are: This invention features a stable support structure formed by the fixed connection between the base and the lower mold. Multiple punching grooves on the punching table, along with their beveled inlet and outlet ends, enable simultaneous and precise punching of multiple tab strips. The beveled inlet end facilitates smooth strip feeding, while the beveled outlet end ensures the cut tabs slide out naturally under gravity. The upper mold, slidably connected to the lower mold via a guide rod, ensures vertical accuracy during the punching process. The punching blade at its bottom precisely aligns with the punching grooves, guaranteeing punching quality. The positioning block restricts the upper mold's punching blade, effectively preventing offset and misalignment during punching. The overall structure not only improves the punching efficiency and accuracy of multi-tab strips but also avoids the common problems of waste adhesion and tab stacking in traditional processes through its beveled design. Furthermore, it simplifies the operation process and reduces maintenance costs. Attached Figure Description

[0006] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0007] Figure 1 This is the front view of this utility model.

[0008] Figure 2 This is a schematic diagram of the lower mold of this utility model.

[0009] Figure 3 This is a schematic diagram of the fit between the upper mold and the positioning block of this utility model.

[0010] Explanation of icon numbers: 10. Base; 20. Lower mold; 200. Punching table; 202. Punching groove; 204. Bevel; 206. Positioning hole; 30. Guide rod; 40. Upper mold; 400. Punch-cutting blade; 50. Positioning block; 500. Positioning groove; 60. Upper metal plate; 70. Punching device; 80. Observation port; 90. Collection tank; 110. Limiting protrusion; 120. First guide rod; 130. Second guide rod; 140. Third guide rod. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0012] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0013] Reference Figure 1-3 As shown, a tab-cutting tool includes... The base 10 is used to support the overall structure. As the basic support component of the entire punching tool, the base 10 is made of high-strength cast iron or steel plate welded together to ensure structural stability during high-speed punching. At the same time, the bottom of the base 10 can be equipped with shock-absorbing pads or mounting holes to adapt to the assembly requirements of different production lines. Its interior is equipped with a waste collection chamber for collecting waste generated during the punching process. This collection chamber can be designed as a drawer-type structure for easy cleaning and maintenance.

[0014] The lower mold 20 is fixed on the base 10. The top of the mold is provided with a punching table 200. The punching table 200 is provided with punching grooves 202 that match the number of electrode tab strips. The inlet and outlet ends of the punching grooves 202 are provided with downward inclined surfaces 204. The inclined surfaces 204 are used to guide the cut electrode tabs out. The inclination angle of the inclined surfaces 204 is 30°~60°. The end of the inclined surfaces 204 is connected to a collection groove 90 for collecting the cut electrode tabs. A limit protrusion 110 is provided on one side of the opening of the collection groove 90.

[0015] Furthermore, both the inlet and outlet ends of the punching groove 202 are provided with inclined surfaces 204 of 30°~60°. The inclined surface at the inlet end facilitates the introduction of the material strip, while the inclined surface at the outlet end guides the cut tabs to slide down naturally by gravity, avoiding the adhesion of waste material due to the vacuum adsorption effect during the return stroke of the tool.

[0016] Furthermore, the inclined angle of the inclined surface 204 is preferably about 45°, and its surface is polished or coated with Teflon to reduce the coefficient of friction. The limiting protrusion 110 of the collection groove 90 can be designed as a spring pressure plate or a magnetic baffle to ensure that the tabs are discharged in an orderly manner without splashing. The waste collection chamber inside the base 10 can be connected to a negative pressure dust collection system to realize the automated cleaning of waste.

[0017] The inclined surface 204 is provided with a positioning hole 206 for connecting with the base 10.

[0018] The base 10 and the lower mold 20 are provided with a first guide rod 120, a second guide rod 130, and a third guide rod 140 for guiding the tab strip. Specifically, the transverse rods of the first guide rod 120, the second guide rod 130, and the third guide rod 140 are located on the extension surface of the base 10, and each of the first guide rod 120, the second guide rod 130, and the third guide rod 140 includes a bent portion, and each bent portion is connected to the transverse rod, thereby fixing the first guide rod 120, the second guide rod 130, and the third guide rod 140 to the base 10 and the lower mold 20. Furthermore, the transverse rods of the first guide rod 120, the second guide rod 130, and the third guide rod 140 are arranged in a triangular pattern, and the transverse rods adopt linear bearings or graphite self-lubricating structures to ensure the straightness and stability of the tab strip during feeding. The surface of the guide rods can be plated with hard chrome to enhance wear resistance.

[0019] The upper mold 40 is slidably connected to the lower mold 20 via the guide rod 30. The bottom of the upper mold 40 is provided with a punching blade 400 corresponding to the punching groove 202. The cutting edge shape of the punching blade 400 matches the preset contour of the pole lug. The punching blade 400 is made of cemented carbide. An upper metal plate 60 is also provided on the guide rod 30, and a punching device 70 is provided on the top of the upper metal plate 60.

[0020] Specifically, the upper mold 40 is slidably connected to the lower mold 20 via a high-precision guide rod 30. The guide rod 30 can be made of chrome-plated steel rod or linear guide rail, and is used in conjunction with linear bearings to ensure vertical movement without shaking. The punching blade 400 is made of cemented carbide (such as YG8) or powder metallurgy high-speed steel. The shape of the cutting edge is modeled according to the outline of the pole lug (such as right angle, rounded corner or stepped shape), and its service life is improved through vacuum heat treatment.

[0021] A positioning block 50 is positioned below the upper mold 40 and is used to restrict the cutting blade 400. A positioning groove 500 is formed in the middle of the positioning block 500, the width of which is greater than the width of the cutting blade 400. Observation openings 80 are provided on both sides of the positioning block 50, with scale markings on the edges of the openings 80 for alignment assistance. Specifically, the positioning block 50 is fixed to the lower part of the upper mold 40 by a spring-loaded pin or a quick-release mechanism. The width of its positioning groove 500 is greater than that of the cutting blade 400, allowing the blade to move freely while restricting its lateral displacement.

[0022] In summary, the working principle of this case is as follows: Multiple parallel tab strips are precisely guided into the punching table 200 of the lower mold 20 by the coordinated guidance of the first guide rod 120, the second guide rod 130, and the third guide rod 140, and are finally positioned by the positioning groove 500 of the positioning block 50, ensuring that the punching blade 400 is strictly aligned with the punching groove 202; the upper mold 40 moves vertically under the precise guidance of the guide rod 30, driving the hard alloy punching blade 400 to simultaneously punch the multiple strips, resulting in the formed tab product. The material slides out through the inclined surface 204 on the right side of the punching table 200, while the waste falls into the internal collection structure of the base 10 through the punching groove 202. The specially designed 30°-60° inclined surface 204, together with the end collection groove 90 and the limiting protrusion 110, effectively prevents the waste from sticking or the pole pieces from stacking when the tool returns. At the same time, the scale design of the observation port 80 realizes real-time visual calibration of the material strip position. Thus, while ensuring the accuracy of simultaneous punching of multiple material strips, it solves the technical problems of waste accumulation and secondary cutting of products in traditional processes.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tab-cutting tool, characterized in that, include The base (10) is used to support the overall structure; The lower mold (20) is fixed on the base (10), and a punching table (200) is provided on its top. The punching table (200) has a punching groove (202) that matches the number of tab strips. The inlet and outlet ends of the punching groove (202) are provided with downward inclined surfaces (204). The inclined surfaces (204) are used to guide the cut tabs out. The upper mold (40) is slidably connected to the lower mold (20) via a guide rod (30), and the bottom of the upper mold (40) is provided with a punching blade (400) corresponding to the punching groove (202). A positioning block (50) is disposed below the upper mold (40) and is used to limit the punching blade body (400).

2. The tab-cutting tool according to claim 1, characterized in that, The inclined angle of the inclined surface (204) is 30°~60°, and the end of the inclined surface (204) is connected to a collection groove (90) for collecting the cut electrode pieces.

3. The tab-cutting tool according to claim 1, characterized in that, The inclined surface (204) is provided with a positioning hole (206) for connecting with the base (10).

4. The tab-cutting tool according to claim 1, characterized in that, The base (10) and the lower mold (20) are provided with a first guide rod (120), a second guide rod (130) and a third guide rod (140) for guiding the tab strip.

5. A tab-cutting tool according to claim 1, characterized in that, The guide rod (30) is also provided with an upper metal plate (60), and the top of the upper metal plate (60) is provided with a punching device (70).

6. The tab-cutting tool according to claim 1, characterized in that, The cutting edge shape of the punching cutter body (400) matches the preset contour of the pole lug, and the punching cutter body (400) is made of cemented carbide material.

7. The tab-cutting tool according to claim 1, characterized in that, A positioning groove (500) is provided in the middle of the positioning block (50), and the width of the positioning groove (500) is greater than the width of the punching blade body (400).

8. A tab-cutting tool according to claim 1, characterized in that, The positioning block (50) has observation ports (80) on both sides, and the edges of the observation ports (80) are provided with scales to assist in alignment.

9. A tab-cutting tool according to claim 2, characterized in that, A limiting protrusion (110) is provided on one side of the opening of the collection groove (90).

Images