A size-adjustable test fixture

Abstract

The utility model provides a size-adjustable test fixture, including the main base plate, one side of which is provided with first strip slot, and the other side is provided with second strip slot, first movable plate is equipped with with first strip slot same number first through -hole, so that first bolt passes through first strip slot, first through -hole, and is installed on one side of main base plate through nut, second movable plate is equipped with with second strip slot same number second through -hole, so that second bolt passes through second strip slot, second through -hole, and is installed on the other side of main base plate through nut, and spring is sleeved on first bolt, second bolt, first movable plate has first clamping surface, and second movable plate has second clamping surface, and first clamping surface, second clamping surface and the top surface of main base plate constitute clamping space for clamping the device to be tested. The utility model can adjust the increase and decrease adjusting plate according to the different size of the device to be tested, thereby increasing the clamping space, to adapt to the battery plastic shell measurement of different sizes or different models.

Description

Technical Field

[0001] This utility model relates to the field of test fixture technology, specifically to an adjustable-size test fixture suitable for various products with plastic shells, especially finished lithium battery packs. Background Technology

[0002] In the era of rapid development of new energy, lithium-ion battery packs are increasingly widely used in the power battery field due to their excellent performance and large capacity. For the production process of a battery pack with a plastic casing, a simple and easy-to-operate dimensional testing fixture can undoubtedly greatly improve the efficiency of finished product inspection and save costs. Currently, there are various dimensional testing tools in battery pack production, most of which require manual reading and measurement. However, manual measurement incurs significant labor, material, and time costs for each finished product. Furthermore, errors in reading can sometimes occur due to factors such as human visual fatigue, potentially causing the finished product dimensions to exceed the standard range. This can lead to product leakage, customer assembly problems, and ultimately, recalls and rectifications, significantly increasing the company's production costs. Utility Model Content

[0003] Based on this, the present invention provides an adjustable-size test fixture to solve the technical problems of manual reading and measurement in the prior art, which is time-consuming, labor-intensive, and prone to errors.

[0004] To achieve the above objectives, this utility model provides an adjustable-size test fixture, comprising:

[0005] The main substrate has at least one first strip groove on one side and at least one second strip groove on the other side.

[0006] The first movable plate has the same number of first through holes as the first strip groove, so that the first bolt passes through the first strip groove and the first through hole, and is installed on one side of the main base plate by a nut;

[0007] The second movable plate has the same number of second through holes as the second slots, allowing the second bolts to pass through the second slots and through holes, and to be installed on the other side of the main base plate via nuts; wherein...

[0008] Springs are fitted on both the first and second bolts, and the springs are located between the first movable plate and the main base plate, and between the second movable plate and the main base plate, respectively.

[0009] The first movable plate and the second movable plate are arranged opposite to each other, and the side of the first movable plate opposite to the second movable plate forms a first clamping surface, and the side of the second movable plate opposite to the first movable plate forms a second clamping surface. The first clamping surface, the second clamping surface and the top surface of the main substrate constitute a clamping space for clamping the device to be tested.

[0010] As a further preferred embodiment of the present invention, the test fixture further includes at least one adjusting plate, which is disposed between the first movable plate and the second movable plate, and is fixed by a nut after passing through the second movable plate, the adjusting plate and the first movable plate in sequence by a third bolt.

[0011] As a further preferred embodiment of this utility model, the adjusting plate is Z-shaped and has at least one through hole for the third bolt to pass through.

[0012] As a further preferred embodiment of this utility model, a first groove is provided on the side of the first and second strip grooves near the clamping space for positioning the spring, and a second groove is provided on the side of the first and second strip grooves away from the clamping space for positioning the first or second bolt.

[0013] As a further preferred embodiment of this utility model, the nut is a hexagonal nut.

[0014] As a further preferred embodiment of this utility model, the number of the first strip groove and the second strip groove are both two.

[0015] As a further preferred embodiment of this utility model, there are two of each of the first through hole and the second through hole.

[0016] As a further preferred embodiment of this utility model, the device to be tested is a battery plastic casing.

[0017] As a further preferred embodiment of the present invention, both the first movable plate and the second movable plate include an integrally connected horizontal plate and a vertical plate, and the horizontal plate and the vertical plate are at a 90-degree angle.

[0018] As a further preferred embodiment of this utility model, the vertical plates of the first movable plate and the second movable plate have the same height.

[0019] The adjustable-size test fixture of this utility model, by adopting the above technical solution, can achieve the following beneficial effects:

[0020] 1) The test fixture of this utility model adopts a detachable connection structure, which is not only easy to assemble, but also can be disassembled and stored when not in use, reducing space occupation;

[0021] 2) This utility model can adjust the adjustment plate according to the different sizes of the device to be tested (e.g., battery plastic casing), thereby increasing the clamping space to accommodate the measurement of battery plastic casings of different sizes or models;

[0022] 3) The overall structure of this utility model is simple and easy to use. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of one embodiment of the adjustable-size test fixture of this utility model.

[0025] Figure 2 for Figure 1 A structural decomposition diagram;

[0026] Figure 3 A diagram showing the working state of another embodiment of the adjustable-size test fixture of this utility model.

[0027] In the figure: 1. Main substrate; 2. First movable plate; 3. Second movable plate; 4. Adjustment plate; 5. Spring; 6. Third bolt; 7. First bolt; 8. Second bolt; 9. Nut; 10. Device to be tested; 11. First groove; 12. Second groove; 13. First groove; 14. Second groove.

[0028] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Terms such as "upper," "lower," "left," "right," "middle," and "one" used in the preferred embodiments are merely for clarity of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of the present invention.

[0030] like Figure 1 , Figure 2 As shown, the adjustable-size test fixture provided by this utility model includes:

[0031] The main substrate 1 has at least one first strip groove 11 on one side and at least one second strip groove 12 on the other side.

[0032] The first movable plate 2 has the same number of first through holes as the first strip groove 11, so that the first bolt 7 passes through the first strip groove 11 and the first through hole, and is installed on one side of the main base plate 1 by the nut 9;

[0033] The second movable plate 3 has the same number of second through holes as the second strip groove 12, so that the second bolt 8 passes through the second strip groove 12 and the second through holes, and is installed on the other side of the main base plate 1 by means of a nut 9; wherein...

[0034] Springs 5 ​​are fitted on both the first bolt 7 and the second bolt 8, and the springs 5 ​​are located between the second movable plate and the main base plate 1, and between the second movable plate and the main base plate 1, respectively, to support a certain height;

[0035] The first movable plate 2 and the second movable plate 3 are arranged opposite to each other, and the side of the first movable plate 2 opposite to the second movable plate 3 forms a first clamping surface, and the side of the second movable plate 3 opposite to the first movable plate 2 forms a second clamping surface. The first clamping surface, the second clamping surface and the top surface of the main substrate 1 form a clamping space for clamping the device to be tested 10.

[0036] In one specific embodiment, both the first movable plate 2 and the second movable plate 3 include an integrally connected horizontal plate and a vertical plate, with the horizontal plate and the vertical plate at a 90-degree angle. The vertical plates of the first movable plate 2 and the second movable plate 3 have the same height. Of course, the first movable plate 2 and the second movable plate 3 can also have other specific shapes, which are not limited in this application.

[0037] like Figure 1 and Figure 2 As shown, there are two of each of the first and second strip grooves 11, and two of each of the first and second through holes. Of course, in specific implementations, the first strip groove 11, the second strip groove 12, the first through hole, and the second through hole can be in other specific quantities, which are not limited here. The length of the first bolt 7 is greater than the total thickness of the main base plate 1, the first movable plate 2, and the nut 9. Similarly, the length of the second bolt 8 is greater than the total thickness of the main base plate 1, the second movable plate 3, and the nut 9.

[0038] Preferably, the test fixture further includes at least one adjusting plate 4, which is disposed between the first movable plate 2 and the second movable plate 3, and is secured by a third bolt 6 passing through the first movable plate 2, the adjusting plate 4, and the second movable plate 3 in sequence, and then fixed by a nut 9. The number of adjusting plates 4 can be determined according to the specific size and model of the device 10 to be tested, thus allowing the test fixture of this application to adapt to the testing requirements of devices 10 of different sizes. Alternatively, the third bolt 6 can also pass through the second movable plate 3, the adjusting plate 4, and the first movable plate 2 in sequence, and then be secured by a nut 9.

[0039] Specifically, the adjusting plate 4 is Z-shaped and has at least one through hole for the third bolt 6 to pass through. Specifically, there are two through holes. Figure 1 and Figure 2 As shown. Of course, the adjustment plate 4 can also be other specific shapes, which will not be listed here.

[0040] like Figure 2 As shown, a first groove 13 is provided on the side of the first strip groove 11 and the second strip groove 12 near the clamping space for positioning the spring 5, and a second groove 14 is provided on the side of the first strip groove 11 and the second strip groove 12 away from the clamping space for positioning the first bolt 7 or the second bolt 8.

[0041] Preferably, the nut 9 is a hexagonal nut 9, used to adjust and fix the distance between the main base plate 1 and the first movable plate 2, the distance between the main base plate 1 and the second movable plate 3, and the distance between the first movable plate 2 and the second movable plate 3.

[0042] Figure 3 The diagram shows the working state of an adjustable-size test fixture used in the production of lithium-ion battery packs with plastic casings. Figure 3 The test fixture shown does not include the adjustment plate 4. It consists only of the first movable plate 2 and the second movable plate 3 forming the clamping space. The lithium battery pack with plastic shell is inserted into the clamping space of the test fixture of this application, and the lithium battery pack with plastic shell can be tested.

[0043] Although specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention. The scope of protection of the present invention is defined only by the appended claims.

Claims

1. An adjustable-size test fixture, characterized in that, include: The main substrate has at least one first strip groove on one side and at least one second strip groove on the other side. The first movable plate has the same number of first through holes as the first strip groove, so that the first bolt passes through the first strip groove and the first through hole, and is installed on one side of the main base plate by a nut; The second movable plate has the same number of second through holes as the second slots, allowing the second bolts to pass through the second slots and through holes, and to be installed on the other side of the main base plate via nuts; wherein... Springs are fitted on both the first and second bolts, and the springs are located between the first movable plate and the main base plate, and between the second movable plate and the main base plate, respectively. The first movable plate and the second movable plate are arranged opposite to each other, and the side of the first movable plate opposite to the second movable plate forms a first clamping surface, and the side of the second movable plate opposite to the first movable plate forms a second clamping surface. The first clamping surface, the second clamping surface and the top surface of the main substrate constitute a clamping space for clamping the device to be tested.

2. The adjustable-size test fixture according to claim 1, characterized in that: The test fixture also includes at least one adjusting plate, which is disposed between the first movable plate and the second movable plate, and is fixed by a nut after passing through the second movable plate, the adjusting plate and the first movable plate in sequence by a third bolt.

3. The adjustable-size test fixture according to claim 2, characterized in that: The adjusting plate is Z-shaped and has at least one through hole for the third bolt to pass through.

4. The adjustable-size test fixture according to claim 1, characterized in that: The first groove and the second groove have a first groove on the side near the clamping space for positioning the spring, and the first groove and the second groove have a second groove on the side away from the clamping space for positioning the first bolt or the second bolt.

5. The adjustable-size test fixture according to claim 1, characterized in that: The nut is a hexagonal nut.

6. The adjustable-size test fixture according to claim 1, characterized in that: The number of the first and second stripes is two.

7. The adjustable-size test fixture according to claim 1, characterized in that: There are two of each of the first and second through holes.

8. The adjustable-size test fixture according to claim 1, characterized in that: The device under test is a battery plastic casing.

9. The adjustable-size test fixture according to any one of claims 1 to 8, characterized in that: Both the first movable plate and the second movable plate include an integrally connected horizontal plate and a vertical plate, and the horizontal plate and the vertical plate are at a 90-degree angle.

10. The adjustable-size test fixture according to claim 9, characterized in that: The vertical plates of the first movable plate and the second movable plate have the same height.

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