Tool clamp for measuring lithium battery cover plate
By designing the tool fixture for measuring the lithium battery cover plate, the supporting steps and edge detection through holes of the contour positioning holes and R-angle detection through holes is solved, and the problem of insufficient visual measurement accuracy is achieved, and the lithium battery cover plate size is achieved. Test.
Patent Information
- Application Number
- CN202420429297.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-06
AI Technical Summary
In the existing lithium battery cover detection method, the light measured by visually is often blocked by tool fixtures, resulting in insufficient measurement accuracy.
A tool fixture for measuring lithium battery cover plates is designed, including positioning substrates, prototyping positioning holes and R-angle detection through holes. By supporting the steps and edge detection through holes, light can pass through the positioning substrates, using bottom to top or From top to bottom light and camera capture the picture, measuring the edge corners, total length and total width data of the lithium battery cover.
The measurement accuracy of lithium battery cover detection is improved, the edge profile can be clearly captured, debris can be detected, and more accurate width and length data can be obtained through multiple sets of measurement data.
Smart Images
Figure CN222279657U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery cover plate detection devices, in particular to a tooling fixture for measuring lithium battery cover plates. Background Art
[0002] The lithium battery cover is an important component of the lithium battery pack. Among them, the size of the lithium battery cover plays an important role in the sealing of the lithium battery pack. Therefore, the size detection of the lithium battery cover is particularly important. At present, the most common detection method is visual measurement. However, the light of visual measurement is often blocked by the fixture, which can easily affect the measurement accuracy of the instrument. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a tooling fixture for measuring a lithium battery cover plate, which can ensure the measurement accuracy.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a tooling fixture for measuring a lithium battery cover, comprising a positioning substrate, wherein the positioning substrate is provided with a contoured positioning hole along its own thickness direction, the top of the side wall of the contoured positioning hole collapses to form a supporting step, and the positioning substrate is provided with an R-angle detection through hole connected to the contoured positioning hole along its own thickness direction.
[0005] Furthermore, the positioning substrate is provided with an edge detection through hole along its thickness direction, the profiling positioning hole is symmetrically provided with at least two edge detection through holes on both sides along its length direction, and the edge detection through hole and the profiling positioning hole are separated only by a supporting step.
[0006] Furthermore, ten edge detection through holes are symmetrically arranged on both sides of the contour positioning hole along its own length direction.
[0007] Furthermore, the edge detection through hole is a rectangular hole, the length of the edge detection through hole is 10 mm to 30 mm, and the width of the edge detection through hole is 1 mm to 3 mm.
[0008] Furthermore, the top of the side wall of the contoured positioning hole collapses to a depth of 2 mm to 3 mm to form a supporting step.
[0009] Furthermore, the R angle detection through hole is a circular hole, and the radius of the R angle detection through hole is 6 mm to 10 mm.
[0010] Furthermore, a chamfer is provided along the contour of the contoured positioning hole on the positioning substrate.
[0011] The beneficial effects of the utility model are as follows: a connected profiling positioning hole and an R angle detection through hole are added to the positioning substrate; the lithium battery cover to be measured is placed in the profiling positioning hole through the support step, and each corner is located in the corresponding R angle detection through hole. Since light can pass through the positioning substrate through the R angle detection through hole, the contour image of each corner of the lithium battery cover can be captured by illuminating from bottom to top and capturing the image from top to bottom with the camera, so that the R angle data, total length data and total width data of the lithium battery cover can be measured according to the contour image. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a structural schematic diagram of a tooling fixture for measuring a lithium battery cover plate of the utility model;
[0013] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure in the AA direction of a fixture for measuring a lithium battery cover;
[0014] Figure 3 This is a schematic diagram of the top view of a tooling fixture for measuring a lithium battery cover plate of the utility model;
[0015] Description of labels:
[0016] 1. Positioning substrate; 11. Profiling positioning hole; 111. Supporting step; 12. R angle detection through hole; 13. Edge detection through hole. DETAILED DESCRIPTION
[0017] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.
[0018] The lithium battery cover is an important component of the lithium battery pack. Among them, the size of the lithium battery cover plays an important role in the sealing of the lithium battery pack. Therefore, the size detection of the lithium battery cover is particularly important. At present, the most common detection method is visual measurement. However, the light of visual measurement is often blocked by the fixture, which can easily affect the measurement accuracy of the instrument.
[0019] Based on this, the present application provides a tooling fixture for measuring a lithium battery cover, which can solve the problem of insufficient visual measurement accuracy.
[0020] Please refer to Figures 1 to 3As shown, the utility model is a fixture for measuring a lithium battery cover plate, comprising a positioning substrate 1, wherein the positioning substrate 1 is provided with a profiling positioning hole 11 along its thickness direction, the top of the side wall of the profiling positioning hole 11 collapses to form a supporting step 111, and the positioning substrate 1 is provided with an R angle detection through hole 12 connected to the profiling positioning hole 11 along its thickness direction. The profiling positioning hole 11 and the R angle detection through hole 12 that are connected are added to the positioning substrate 1; the lithium battery cover plate to be measured is placed in the profiling positioning hole 11 through the supporting step 111, and each corner is located in the corresponding R angle detection through hole 12. Since light can pass through the positioning substrate 1 through the R angle detection through hole 12, the contour image of each corner of the lithium battery cover plate can be captured by illuminating from bottom to top and capturing the image with a camera from top to bottom, so as to obtain the R angle data, total length data and total width data of the lithium battery cover plate according to the measured contour image.
[0021] In one implementation, please refer to Figures 1 to 3 As shown, the positioning substrate 1 is provided with an edge detection through hole 13 along its thickness direction, and the profiling positioning hole 11 is symmetrically provided with at least two edge detection through holes 13 on both sides along its length direction, and the edge detection through hole 13 and the profiling positioning hole 11 are separated only by a support step 111. The edge detection through holes 13 symmetrically arranged on both sides of the profiling positioning hole 11 can make the long side edge contour of the lithium battery cover plate more clearly captured by the camera, and can not only detect whether there are burrs, metal wires and other debris on the long side edge of the lithium battery cover plate, but also can measure multiple groups of lithium battery cover plate width data according to the illuminated edge portion by using related equipment such as a two-dimensional image measuring instrument, so as to obtain the maximum value, minimum value and average value of the total width of the lithium battery cover plate, and the data fluctuation value of the width. Similarly, at least two edge detection through holes 13 can be symmetrically arranged on both sides of the profiling positioning hole 11 along its width direction, and the maximum value, minimum value and average value of the total length of the lithium battery cover plate, and the data fluctuation value of the length can be obtained by the same principle.
[0022] In an optional embodiment, the profiling positioning hole 11 is symmetrically provided with ten edge detection through holes 13 on both sides along its own length direction. Taking the two edge detection through holes 13 located on both sides of the profiling positioning hole 11 along its own length direction as a group, the maximum value, minimum value and average value of the total width of the lithium battery cover plate of five groups, and the data fluctuation value of the width are measured, and a more accurate value can be obtained based on the five groups of measured data. Similarly, ten edge detection through holes 13 can be symmetrically provided on both sides of the profiling positioning hole 11 along its own width direction. Taking the two edge detection through holes 13 located on both sides of the profiling positioning hole 11 along its own width direction as a group, the maximum value, minimum value and average value of the total length of the lithium battery cover plate of five groups, and the data fluctuation value of the length are measured, and a more accurate value can be obtained based on the five groups of measured data.
[0023] Please refer to Figure 3 As shown, further, the edge detection through hole 13 is a rectangular hole, the length of the edge detection through hole 13 is B, and the width of the edge detection through hole 13 is C. Among them, B is preferably 10mm, 20mm, 30mm, and the most preferred B is 20mm. C is preferably 1mm, 2mm, 3mm, and the most preferred C is 2mm.
[0024] Please refer to Figure 2 As shown, the top of the side wall of the contoured positioning hole 11 collapses to a depth of E to form a support step 111. E is preferably 2 mm, 2.5 mm, or 3 mm, and the most preferred E is 2.5 mm.
[0025] Please refer to Figure 3 As shown, further, the R angle detection through hole 12 is a circular hole, and the radius of the R angle detection through hole 12 is D. Among them, D is preferably 6 mm, 8 mm, 10 mm, and the most preferred D is 8 mm.
[0026] Furthermore, a chamfer is provided along the contour of the contoured positioning hole 11 on the positioning substrate 1 .
[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A fixture for measuring a lithium battery cover, characterized in that: The positioning substrate comprises a positioning substrate, wherein the positioning substrate is provided with a profiling positioning hole along its thickness direction, the top of the side wall of the profiling positioning hole collapses to form a supporting step, and the positioning substrate is provided with an R angle detection through hole connected with the profiling positioning hole along its thickness direction.
2. The fixture for measuring the lithium battery cover according to claim 1, characterized in that: The positioning substrate is provided with an edge detection through hole along its thickness direction, the profiling positioning hole is symmetrically provided with at least two edge detection through holes on both sides along its length direction, and only a supporting step is provided between the edge detection through hole and the profiling positioning hole.
3. The fixture for measuring the lithium battery cover according to claim 2, characterized in that: The profiling positioning hole is symmetrically provided with ten edge detection through holes on both sides along its length direction.
4. The fixture for measuring the lithium battery cover according to claim 2, characterized in that: The edge detection through hole is a rectangular hole, the length of the edge detection through hole is 10 mm to 30 mm, and the width of the edge detection through hole is 1 mm to 3 mm.
5. The fixture for measuring the lithium battery cover according to claim 1, characterized in that: The top of the side wall of the contoured positioning hole collapses to a depth of 2 mm to 3 mm to form a supporting step.
6. The fixture for measuring the lithium battery cover according to claim 1, characterized in that: The R angle detection through hole is a circular hole, and the radius of the R angle detection through hole is 6 mm to 10 mm.
7. The fixture for measuring the lithium battery cover according to claim 1, characterized in that: The positioning substrate is provided with a chamfer along the contour of the contoured positioning hole.