CN220120542U - Test fixture of nested pulling force of car combined material battery case lid metal - Google Patents
Test fixture of nested pulling force of car combined material battery case lid metal Download PDFInfo
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- CN220120542U CN220120542U CN202320653034.5U CN202320653034U CN220120542U CN 220120542 U CN220120542 U CN 220120542U CN 202320653034 U CN202320653034 U CN 202320653034U CN 220120542 U CN220120542 U CN 220120542U
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- metal
- battery case
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- 239000002184 metal Substances 0.000 title claims abstract description 41
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims description 3
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model provides a test fixture for metal nesting drawing force of an automobile composite material battery box cover, which comprises the following components: the base is a cylinder, a first connecting thread is arranged on the outer side of the base, a connecting part is arranged at the bottom of the base and used for fixing and clamping a lower clamp of the testing machine, a circular groove is formed in the top of the base, the radius of the circular groove is larger than that of one side of the metal nest and one side of the box cover nest, and a positioning pin hole is formed in the bottom end of the circular groove; the pressing disc cover is arranged above the base, a second connecting thread which is tightly matched with the base is arranged on the inner side of the pressing disc cover, and a first through hole is formed in the center of the pressing disc cover; a gap for accommodating the case cover is reserved between the base and the pressure plate cover; the fastener is positioned between the pressure plate cover and the box cover, the center is provided with a second through hole, the inner diameter of the second through hole is larger than the outer diameter of the metal nest, the pin is pulled out, and the outer wall is provided with a protruding part. The test tool disclosed by the utility model is simple and convenient to use, and can improve the test efficiency of the metal nesting drawing force of the box cover.
Description
Technical Field
The utility model relates to the technical field of test tools, in particular to a test tool for a metal nesting drawing force of an automobile composite material battery box cover.
Background
In the existing testing process of the metal nesting drawing force of the box cover, the deformation of the box plate is avoided, holes are needed to be drilled in the box cover plate, the box cover is fastened through bolts, the upper pressure plate and the lower pressure plate, the upper pressure plate needs to be replaced in consideration of different sizes of metal nesting, bolts are needed to be detached after each test is completed, the upper pressure plate is taken down and reinstalled, and a large number of repeated tests can lead to very complicated processes.
Therefore, in order to improve the problems, a test fixture for the metal nesting drawing force of the battery case cover of the automobile composite material needs to be designed.
Disclosure of Invention
The utility model aims to disclose a testing tool for metal nesting drawing force of an automobile composite material battery box cover, which aims to solve the problems that the prior testing tool uses bolts to fasten an upper pressing plate and a lower pressing plate, the working procedure is complicated, and drawing tests cannot be carried out on metal nesting of different sizes.
In order to achieve the above purpose, the utility model provides a test fixture for a metal nesting drawing force of an automobile composite material battery box cover, which comprises:
the base is a cylinder, a first connecting thread is arranged on the outer side of the base, a connecting part is arranged at the bottom of the base and used for fixing and clamping a lower clamp of the testing machine, a circular groove is formed in the top of the base, the radius of the circular groove is larger than that of one side of the metal nest and one side of the box cover nest, and a positioning pin hole is formed in the bottom end of the circular groove;
the pressing disc cover is arranged above the base, second connecting threads which are tightly matched with the base are arranged on the inner side of the pressing disc cover, and a first through hole is formed in the center of the pressing disc cover;
a gap for accommodating a box cover is reserved between the base and the pressure plate cover;
the fastener is positioned between the pressure plate cover and the box cover, a second through hole is formed in the center of the fastener, and the inner diameter of the second through hole is larger than the outer diameter of the metal nest;
the pin is pulled out, vertically arranged and sequentially penetrates through the first through hole and the central hole of the metal nest, the bottom end of the pin is in plug-in fit with the positioning pin hole, the top is fixedly clamped by a lower clamp of the testing machine, a protruding portion is arranged on the outer wall of the pin shaft, and the top end of the protruding portion is in propping connection with the bottom end of the metal nest.
As a further development of the utility model, the fastening element has a ring-shaped structure.
As a further improvement of the utility model, the top of the fastener is also provided with an annular protruding part, the first through hole is a round hole, and the annular protruding part and the first through hole form limit fit.
As a further improvement of the utility model, the boss is an annular boss.
As a further improvement of the utility model, the outer side of the pressure plate cover is provided with a convex screwing part.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model provides a test fixture of metal nesting drawing force of automobile composite material battery case lid, through the combination of base, pressure disk lid, fastener, pull pin, the screw thread of base and pressure disk lid is screwed up, realizes the quick fastening to the metal nesting of case lid, has improved test efficiency, through cutting the case lid so that the maximum diameter of case lid is less than the internal diameter of pressure disk lid, need not to drill the case lid, can realize the drawing force test to the metal nesting of equidimension and case lid; the box cover is limited by the fastener, so that the deformation of the box cover in a drawing force test is avoided, and the deformation of a hole for metal nesting installation on the box cover is avoided, so that the box cover is blocked with the pulling pin, and the pulling pin is difficult to detach; the tool is simple and quick to use.
Drawings
FIG. 1 is a schematic structural diagram of a test fixture in the background art;
in the figure: 1', a lower pressing plate; 2', an upper pressing plate; 3. pulling out the pin; a. a case cover; b. metal nesting;
fig. 2 is a schematic structural diagram of a test fixture for metal nesting pull force of a battery case cover made of an automobile composite material, wherein the case cover and the metal nesting are shown in the schematic structural diagram.
In the figure: 1. a base; 2. a platen cover; 3. pulling out the pin; a. a case cover; b. metal nesting; 4. a fastener; 10. a circular groove; 11. a first connection thread; 20. a first through hole; 21. a second connecting thread; 40. a second through hole; 41. an annular boss.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.
Please refer to fig. 1-2 for an embodiment of a test fixture for a metal nesting pull force of a battery case cover made of an automotive composite material according to the present utility model.
A test fixture of metal nesting drawing force of an automobile composite material battery case cover comprises: the base 1 is a cylinder, a first connecting thread 11 is arranged on the outer side of the base 1, a connecting part is arranged at the bottom of the base 1 and is fixedly clamped by a lower clamp of the testing machine, a circular groove 10 is formed in the top of the base, and a positioning pin hole is formed in the bottom end of the circular groove 10; the pressure plate cover 2 is arranged above the base 1, a second connecting thread 21 which is tightly matched with the base 1 is arranged on the inner side of the pressure plate cover 2, and a first through hole 20 is formed in the center of the pressure plate cover 2; a gap for accommodating the box cover a is reserved between the base 1 and the pressure plate cover 2; the fastener 4 is positioned between the pressure plate cover 2 and the box cover a, a second through hole 40 is formed in the center, and the inner diameter of the second through hole 40 is larger than the outer diameter of the metal nest b; the pin pulling 3 is vertically arranged and sequentially penetrates through the first through hole 20 and the central hole of the metal nest b, the bottom end of the pin pulling 3 is in plug-in fit with the positioning pin hole, the top end of the pin pulling 3 is fixedly clamped by a lower clamp of the testing machine, a protruding portion is arranged on the outer wall of the pin shaft, and the top end of the protruding portion is in propping connection with the bottom end of the metal nest b. The fastener 4 has a ring-shaped structure. The top of the fastener 4 is also provided with an annular protruding part 41, the first through hole 20 is a round hole, and the annular protruding part 41 and the first through hole 20 form limit fit. The fastening function of the fastening piece 4 to the box cover a is ensured, and meanwhile, the phenomenon that the center of the fastening piece 4 deviates in the rotating process of the pressure plate cover 2 to cause the testing obstacle of the drawing force is avoided. The boss is an annular boss 41. The outside of the pressure plate cover 2 is provided with a convex screwing part.
It should be understood that in this embodiment, by the combination of the base 1, the pressure plate cover 2, the fastener 4 and the pull pin 3, the base 1 and the pressure plate cover 2 are screwed tightly by the threads, so as to realize quick fastening of the metal nest b of the box cover a, improve the test efficiency, and by cutting the box cover a so that the maximum diameter of the box cover a is smaller than the inner diameter of the pressure plate cover 2, the box cover a does not need to be drilled, and the pull force test of the metal nest b and the box cover a with different sizes can be realized; the box cover a is limited by the fastener 4, so that the deformation of the box cover a in a drawing force test is avoided, and a hole for installing the metal nest b on the box cover a is deformed, so that the box cover a is blocked with the pulling pin 3, and the pulling pin 3 is difficult to detach; the tool is simple and quick to use.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. Test fixture of nested pulling force of car combined material battery case lid metal, its characterized in that includes:
the base is a cylinder, a first connecting thread is arranged on the outer side of the base, a connecting part is arranged at the bottom of the base and used for fixing and clamping a lower clamp of the testing machine, a circular groove is formed in the top of the base, and a positioning pin hole is formed in the bottom end of the circular groove;
the pressing disc cover is arranged above the base, second connecting threads which are tightly matched with the base are arranged on the inner side of the pressing disc cover, and a first through hole is formed in the center of the pressing disc cover;
a gap for accommodating a box cover is reserved between the base and the pressure plate cover;
the fastener is positioned between the pressure plate cover and the box cover, a second through hole is formed in the center of the fastener, and the inner diameter of the second through hole is larger than the outer diameter of the metal nest;
the pin is pulled out, vertically arranged and sequentially penetrates through the first through hole and the central hole of the metal nest, the bottom end of the pin is in plug-in fit with the positioning pin hole, the top is fixedly clamped by a lower clamp of the testing machine, a protruding portion is arranged on the outer wall of the pin shaft, and the top end of the protruding portion is in propping connection with the bottom end of the metal nest.
2. The tool for testing the metal nesting pull force of the battery case cover of the automobile composite material according to claim 1, wherein the fastener is of an annular structure.
3. The test fixture for metal nesting drawing force of an automobile composite material battery case cover according to claim 1, wherein the top of the fastener is further provided with an annular protruding portion, the first through hole is a round hole, and the annular protruding portion and the first through hole form limit fit.
4. The tool for testing the metal nesting pull force of the battery case cover of the automobile composite material according to claim 1, wherein the protruding portion is an annular protruding portion.
5. The test fixture for metal nesting pull force of an automobile composite material battery case cover according to claim 1, wherein a protruding turning part is arranged on the outer side of the pressure plate cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653034.5U CN220120542U (en) | 2023-03-29 | 2023-03-29 | Test fixture of nested pulling force of car combined material battery case lid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653034.5U CN220120542U (en) | 2023-03-29 | 2023-03-29 | Test fixture of nested pulling force of car combined material battery case lid metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120542U true CN220120542U (en) | 2023-12-01 |
Family
ID=88914586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320653034.5U Active CN220120542U (en) | 2023-03-29 | 2023-03-29 | Test fixture of nested pulling force of car combined material battery case lid metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120542U (en) |
-
2023
- 2023-03-29 CN CN202320653034.5U patent/CN220120542U/en active Active
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