Polishing cutter for polishing welding needle
By designing multi-functional grinding tools, including flat cutters and angle cutters, combining clamping mechanisms and positioning holes, the inefficiency and consistency problems caused by the singleness of welding needle grinding tools are solved, and the stability and quality of the welding process are achieved. promote.
Patent Information
- Application Number
- CN202420095242.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The existing welding needle grinding tools are too single, resulting in low grinding efficiency of welding needles, and the consistency of the perpendicularity and length of the conductive contact surface and the needle rod cannot be guaranteed, which affects the welding quality.
A sharpening tool including a knife body, a flat knife, an angle knife and a positioning hole is designed. The stabilization installation of the knife body is achieved through the clamping mechanism and a positioning hole, and the various shapes of the flat knife and an angle knife are used to adapt to the welding needle. Different processing needs ensure the stability and accuracy of the grinding process.
It improves the efficiency and accuracy of welding pin grinding, solves the inefficiency and consistency problems caused by a single grinding tool, and ensures the stability and quality of the welding process.
Smart Images
Figure CN222221749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding tools, in particular to a grinding tool used for grinding welding needles. Background Art
[0002] During the production process of cylindrical lithium batteries, the negative electrode tab needs to be welded to the bottom of the battery shell when the battery cell is wound and put into the shell. One end of the welding needle used is a cylinder with a smaller diameter (i.e., the rear needle head) and is connected to the welding needle rod in a cone shape to increase the pressure during welding and achieve the purpose of reliable welding; the other end of the welding needle is a cylinder with a larger diameter (i.e., the front needle head) connected to the needle rod; the two end faces of the welding needle are conductive contact faces, and when working, the current flows from the large end face of the welding needle (i.e., the front needle head) to the small end face (i.e., the rear needle head).
[0003] In this process, the conductive contact surface of the welding needle is required to have a good current conduction effect. After the welding needle has worked for a certain number of times, an impurity layer such as oxide will be generated on the conductive contact surface, which will affect the current conduction performance. Therefore, both end surfaces of the welding needle need to be polished.
[0004] Traditionally, manual processing is generally used, which is not only time-consuming, labor-intensive and inefficient, but also cannot guarantee the verticality of the two end faces of the welding needle and the welding needle rod, nor can it guarantee the consistency of the welding needle length. When using proprietary equipment for processing, the grinding tool for the welding needle is too single, resulting in the need for it to be polished by multiple grinding tools. It is not only time-consuming, labor-intensive and inefficient, but also will have an adverse effect on normal production. Utility Model Content
[0005] The utility model aims to provide a grinding tool for grinding welding needles, aiming to solve the problem that the grinding tool for welding needles in the prior art is too single.
[0006] The utility model is implemented as follows: a grinding tool for grinding welding needles comprises a tool body, a tool handle clamped and connected to a clamping mechanism is provided on the rear end of the tool body, the middle portion of the tool handle is recessed inward to form a clamping groove for clamping the tool handle, a flattening tool for flattening welding needles and an angle tool for grinding welding needles are provided on the front end of the tool body, the angle tool and the flattening tool are arranged relative to each other, and a positioning hole is provided on the tool body.
[0007] Furthermore, the front end portion of the knife body is provided with a limiting end surface for limiting the forward movement of the welding needle, the limiting end surface is provided with a limiting platform protruding outward, the connection between the top of the limiting platform and the top of the knife body is recessed downward to form the corner knife, the corner knife is provided with a blade end surface for cutting the welding needle, one end of the blade end surface is butted against the limiting end surface, the limiting platform is provided with a lateral end surface for limiting the grinding range of the blade end surface, and the other end of the blade end surface is butted against the lateral end surface.
[0008] Furthermore, the blade end face includes an arc end face and a variable diameter end face arranged in an arc shape, one end of the arc end face is butt-jointed with the limiting end face, the other end of the arc end face is butt-jointed with one end of the variable diameter end face, and the other end of the variable diameter end face is butt-jointed with the lateral end face.
[0009] Furthermore, the front end portion of the knife body is provided with a limiting end surface for limiting the forward movement of the welding needle, the limiting end surface is provided with a limiting platform protruding outwardly, the top of the limiting platform is recessed downward toward one side of the knife body to form the corner knife, the corner knife has a blade end surface for cutting the welding needle, one end of the blade end surface is butt-jointed with the limiting end surface, the limiting platform is provided with a lateral end surface for limiting the grinding range of the blade end surface, and the other end of the blade end surface is butt-jointed with the lateral end surface.
[0010] Furthermore, the blade end face includes an arc end face, a variable diameter end face and an inclined end face arranged in an arc shape, one end of the arc end face is docked on the limiting end face, the other end of the arc end face is docked on one end of the variable diameter end face, the other end of the variable diameter end face is docked on one end of the inclined end face, and the other end of the inclined end face is inclined away from the variable diameter end face and docked on the lateral end face.
[0011] Furthermore, the other side of the end of the tool body has the flattening tool which is recessed inwards and formed with a right-angle notch or an oblique-angle notch.
[0012] Furthermore, the middle portion of the knife handle is recessed inward to form a clamping groove for clamping the knife handle, the front end of the knife handle is connected to the knife body, and the two sides of the rear end of the knife handle extend outward away from the knife handle to form extension sections, and the two extension sections are relatively spaced apart to form a spacing area, and the spacing area is enclosed with the rear end face of the knife handle to form the clamping groove.
[0013] Furthermore, one end of the extension section and the knife handle are an integrated structure, and the other end of the extension section is arranged in an arc shape away from the spacing area.
[0014] Furthermore, the knife body and the knife handle are an integrated structure.
[0015] Furthermore, the positioning hole penetrates from top to bottom along the top of the blade body to the bottom of the blade body.
[0016] Compared with the prior art, the grinding tool for grinding welding pins provided by the utility model is connected by clamping with a clamping mechanism through a tool handle, and the tool body is positioned and installed by using a positioning hole, so that the tool body is stable when grinding the welding pin. The tool body can flatten the end face of the welding pin by using a flattening tool, and the shape of the angle knife can correspond to the processing shape of the welding pin, thereby solving the problem that the grinding tool for the welding pin is too single. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of a grinding tool for welding needle grinding provided by the utility model Figure 1 ;
[0018] Figure 2 This is a three-dimensional schematic diagram of the grinding tool provided by the utility model Figure 1 ;
[0019] Figure 3 It is a schematic diagram of the top view of the grinding tool provided by the utility model;
[0020] Figure 4 This is a three-dimensional schematic diagram of a grinding tool for welding needle grinding provided by the utility model Figure 2 ;
[0021] Figure 5 This is a three-dimensional schematic diagram of the grinding tool provided by the utility model Figure 2 .
[0022] In the figure: the tool body 10, the tool handle 20, the flattening tool 30, the corner tool 40, the positioning hole 50, the limiting platform 60, the welding pin 70, the limiting end face 11, the clamping groove 21, the extension section 22, the blade end face 41, the arc end face 42, the diameter reducing end face 43, the inclined end face 44, and the lateral end face 61. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0024] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0025] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present utility model. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0026] Reference Figure 1-5 As shown, it is a preferred embodiment provided by the utility model.
[0027] The grinding tool for grinding the welding needle 70 includes a tool body 10, and a tool handle 20 clamped and connected to a clamping mechanism is provided on the rear end of the tool body 10. A flattening tool 30 for flattening the welding needle 70 and a corner knife 40 for grinding the welding needle 70 are provided on the front end of the tool body 10. The corner knife 40 and the flattening tool 30 are arranged opposite to each other, and a positioning hole 50 is provided on the tool body 10.
[0028] The grinding tool for welding pin grinding provided above is connected by clamping with the clamping mechanism through the tool handle 20, and then the tool body 10 is positioned and installed by using the positioning hole 50, so that the tool body 10 is stable when grinding the welding pin 70. The tool body 10 can flatten the end surface of the welding pin 70 by using the flattening tool 30, and the shape of the angle knife 40 can correspond to the processing shape of the welding pin 70, thereby solving the problem that the grinding tool for the welding pin 70 is too single.
[0029] In this embodiment, the front end portion of the cutter body 10 is provided with a limiting end face 11 for limiting the forward movement of the welding needle 70, and a limiting platform 60 is protruding outward from the limiting end face 11. The connection between the top of the limiting platform 60 and the top of the cutter body 10 is recessed downward to form a corner knife 40, and the corner knife 40 is provided with a blade end face 41 for cutting the welding needle 70, and one end of the blade end face 41 is butt-jointed with the limiting end face 11, and the limiting platform 60 is provided with a lateral end face 61 for limiting the grinding range of the blade end face 41, and the other end of the blade end face 41 is butt-jointed with the lateral end face 61.
[0030] The cutter body 10 limits the position of the welding needle 70 moving toward the cutter body 10 through the limiting end face 11, so as to stably process and grind the welding needle 70; the outer diameter of the welding needle 70 is matched, and the relative position of the blade end face 41 of the corner cutter 40 and the welding needle 70 is limited by the limiting platform 60 and the lateral end face 61 to prevent the corner cutter 40 from cutting too deep.
[0031] In this embodiment, the blade end face 41 includes an arc end face 42 and a reducing end face 43 arranged in an arc shape, one end of the arc end face 42 is connected to the limiting end face 11, the other end of the arc end face 42 is connected to one end of the reducing end face 43, and the other end of the reducing end face 43 is connected to the lateral end face 61.
[0032] The blade end surface 41 can grind the end of the welding needle 70 into a corresponding processing shape through the arc end surface 42 and the reduced diameter end surface 43 .
[0033] In this embodiment, the front end portion of the cutter body 10 is provided with a limiting end face 11 for limiting the forward movement of the welding needle 70, and a limiting platform 60 is protruding outward from the limiting end face 11. The top of the limiting platform 60 is recessed downward toward one side of the cutter body 10 to form a corner knife 40, and the corner knife 40 is provided with a blade end face 41 for cutting the welding needle 70, and one end of the blade end face 41 is butt-jointed with the limiting end face 11, and the limiting platform 60 is provided with a lateral end face 61 for limiting the grinding range of the blade end face 41, and the other end of the blade end face 41 is butt-jointed with the lateral end face 61.
[0034] The cutter body 10 limits the position of the welding needle 70 moving toward the cutter body 10 through the limiting end face 11, so as to stably process and grind the welding needle 70; the outer diameter of the welding needle 70 is matched, and the relative position of the blade end face 41 of the corner cutter 40 and the welding needle 70 is limited by the limiting platform 60 and the lateral end face 61 to prevent the corner cutter 40 from cutting too deep.
[0035] In this embodiment, the blade end face 41 includes an arc end face 42, a variable diameter end face 43 and an inclined end face 44 arranged in an arc shape, one end of the arc end face 42 is docked on the limiting end face 11, the other end of the arc end face 42 is docked on one end of the variable diameter end face 43, the other end of the variable diameter end face 43 is docked on one end of the inclined end face 44, and the other end of the inclined end face 44 deviates from the variable diameter end face 43 and is obliquely docked on the lateral end face 61.
[0036] The blade end surface 41 can grind the end of the welding needle 70 into a corresponding processed shape through the arc end surface 42, the reduced diameter end surface 43 and the inclined end surface 44.
[0037] In this embodiment, a flattening knife 30 is provided on the other side of the end of the knife body 10 and is recessed inwardly to form a right-angle notch or an oblique-angle notch. In this way, the end surface of the welding pin 70 can be flattened.
[0038] The middle part of the knife handle 20 is recessed inward to form a clamping groove 21 for clamping the knife handle 20. The front end of the knife handle 20 is connected to the knife body 10. The two sides of the rear end of the knife handle 20 extend outward away from the knife handle 20 to form extension sections 22. The two extension sections 22 are arranged relatively spaced apart to form a spacing area. The spacing area and the rear end surface of the knife handle 20 are enclosed to form the clamping groove 21. In this way, the clamping mechanism can clamp and install the knife handle 20 through the clamping groove 21.
[0039] One end of the extension section 22 and the handle 20 are integrally formed, and the other end of the extension section 22 is arranged in an arc shape away from the spacing area.
[0040] The knife body 10 and the knife handle 20 are an integrated structure.
[0041] The positioning hole 50 runs from top to bottom along the top of the blade body 10 to the bottom of the blade body 10. In this way, the entire blade body 10 can be positioned and installed.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A grinding tool for welding needle grinding, characterized in that: It comprises a tool body, the rear end of which is provided with a tool handle clamped and connected with a clamping mechanism, the front end of which is provided with a flattening tool for flattening welding pins and an angle tool for grinding welding pins, the angle tool and the flattening tool are arranged relative to each other, and a positioning hole is provided on the tool body.
2. The grinding tool for welding needle grinding according to claim 1, characterized in that: The front end portion of the knife body is provided with a limiting end face for limiting the forward movement of the welding needle, the limiting end face is provided with a limiting platform protruding outwardly, the connection between the top of the limiting platform and the top of the knife body is recessed downward to form the corner knife, the corner knife is provided with a blade end face for cutting the welding needle, one end of the blade end face is butted against the limiting end face, the limiting platform is provided with a lateral end face for limiting the grinding range of the blade end face, and the other end of the blade end face is butted against the lateral end face.
3. The grinding tool for welding needle grinding according to claim 2, characterized in that: The blade end face includes an arc end face and a diameter-reducing end face arranged in an arc shape, one end of the arc end face is butted against the limiting end face, the other end of the arc end face is butted against one end of the diameter-reducing end face, and the other end of the diameter-reducing end face is butted against the lateral end face.
4. The grinding tool for welding needle grinding according to claim 1, characterized in that: The front end portion of the knife body is provided with a limiting end face for limiting the forward movement of the welding needle, the limiting end face is provided with a limiting platform protruding outwardly, the top of the limiting platform is recessed downwardly toward the side of the knife body to form the corner knife, the corner knife is provided with a blade end face for cutting the welding needle, one end of the blade end face is butted against the limiting end face, the limiting platform is provided with a lateral end face for limiting the grinding range of the blade end face, and the other end of the blade end face is butted against the lateral end face.
5. The grinding tool for welding needle grinding according to claim 4, characterized in that: The blade end face includes an arc end face, a reducing end face and an inclined end face arranged in an arc shape, one end of the arc end face is butted against the limiting end face, the other end of the arc end face is butted against one end of the reducing end face, the other end of the reducing end face is butted against one end of the inclined end face, and the other end of the inclined end face is butted against the lateral end face at an angle away from the reducing end face.
6. The grinding tool for welding needle grinding according to any one of claims 1 to 5, characterized in that: The other side of the end of the tool body is provided with the flattening tool which is inwardly recessed and formed with a right-angle notch or an oblique-angle notch.
7. The grinding tool for welding needle grinding according to any one of claims 1 to 5, characterized in that: The middle part of the knife handle is recessed inward to form a clamping groove for clamping the knife handle. The front end of the knife handle is connected to the knife body. The two sides of the rear end of the knife handle extend outward away from the knife handle to form extension sections. The two extension sections are arranged relatively spaced apart to form a spacing area. The spacing area is enclosed with the rear end face of the knife handle to form the clamping groove.
8. The grinding tool for welding needle grinding according to claim 7, characterized in that: One end of the extension section and the knife handle are an integrated structure, and the other end of the extension section is arranged in an arc shape away from the spacing area.
9. The grinding tool for welding needle grinding according to claim 8, characterized in that: The knife body and the knife handle are an integrated structure.
10. The grinding tool for welding needle grinding according to any one of claims 1 to 5, characterized in that: The positioning hole penetrates from top to bottom along the top of the knife body to the bottom of the knife body.