Test tool for battery vibration test

Abstract

The utility model discloses a test tool used for a battery vibration test, the test tool comprises a work platform, a tool pedestal, a tool support and a lifting mechanism, the work platform forms a first through cavity; the tool base is arranged on the working platform, a second through cavity communicating with the first through cavity is formed in the tool base, and a first matching hole is formed in the tool base; a second matching hole is formed in the tool bracket; the lifting mechanism extends in the height direction and can stretch out and draw back in the height direction, one end of the lifting mechanism is fixed to one side of the working platform, and the other end of the lifting mechanism is suitable for sequentially penetrating through the first through cavity and the second through cavity. According to the test tool provided by the utility model, the lifting mechanism is arranged, and the lifting mechanism can stretch in the height direction, so that the position of the battery pack can be flexibly adjusted, the alignment of the second matching hole and the first matching hole is more convenient and accurate, the installation process of the battery pack is simplified, and the test progress is accelerated.

Description

Technical Field

[0001] The utility model relates to the field of battery testing, in particular to a testing tool used for battery vibration testing. Background Art

[0002] With the rapid development of the electric vehicle market, the safety and reliability of battery systems have become important research topics. In order to ensure that the battery system can work normally in various harsh environments, a series of vibration tests are required to simulate the vibration conditions in actual use.

[0003] At present, the battery pack is usually fixed on the vibration platform by a fixing tool. The fixing tool includes a base and a bracket. The base is set on the vibration platform, and the bracket is fixed to the base by fasteners to fix the battery pack between the base and the bracket, so that the battery pack remains stable and receives stable vibration stimulation during the vibration test. However, in actual operation, it is difficult to align the holes on the base with the holes on the bracket, which increases the complexity of installation and debugging and affects the progress of the test. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a test fixture. According to the test fixture of the utility model, by setting a lifting mechanism, the lifting mechanism can be extended and retracted in the height direction, and the position of the battery pack can be flexibly adjusted, so that the alignment of the second matching hole and the first matching hole is more convenient and accurate, simplifying the installation process of the battery pack and speeding up the test progress.

[0005] The test jig according to the utility model is used for battery vibration test, and the test jig comprises: a working platform, the working platform is formed with a first through cavity which penetrates in the height direction; a jig base, the jig base is arranged on the working platform and is formed with a second through cavity which penetrates in the height direction and is connected with the first through cavity, and a first matching hole is formed on the jig base; a jig bracket, the jig bracket is formed with a second matching hole, the second matching hole is suitable for aligning and cooperating with the first matching hole, and a fastener is passed through the second matching hole and the first matching hole in sequence to connect the jig bracket with the jig base, so as to fix the battery pack between the jig bracket and the jig base; a lifting mechanism, the lifting mechanism extends in the height direction and can be retracted in the height direction, one end of the lifting mechanism is fixed to one side of the working platform, and the other end of the lifting mechanism is suitable for passing through the first through cavity and the second through cavity in sequence and is suitable for lifting the battery pack on the working platform.

[0006] According to the test fixture of the utility model, the battery pack can be fixed on the working platform, so as to perform a vibration test on the battery pack. By setting a fixture base and a fixture bracket, the fixture base and the fixture bracket can be matched and connected to fix the battery pack between the fixture base and the fixture bracket, and because the fixture base is set on the working platform, the battery pack is fixed on the working platform. Specifically, a first matching hole is formed on the fixture base, and a second matching hole is formed on the fixture bracket. When the working base is matched and connected with the fixture bracket, it is necessary to first align the first matching hole with the second matching hole, and then pass the fastener through the second matching hole and the first matching hole in sequence to connect the fixture bracket with the fixture base, and because the fixture bracket is pre-set on the battery pack, the battery pack is fixed between the fixture bracket and the fixture base. By setting a first through cavity on the working platform and a second through cavity on the fixture base, the first through cavity is connected to the second through cavity, so that the lifting mechanism can pass through the first through cavity and the second through cavity in sequence to lift the battery pack on the working platform. By setting a lifting mechanism, one end of the lifting mechanism is fixed on one side of the working platform, and the other end of the lifting mechanism passes through the first through cavity and the second through cavity in sequence and lifts the battery pack on the working platform, and the lifting mechanism can be extended and retracted in the height direction, and the position of the battery pack can be flexibly adjusted to facilitate the matching of the tooling bracket on the battery pack with the tooling base, and the alignment of the second matching hole and the first matching hole is more convenient and accurate, which simplifies the installation process of the battery pack and speeds up the test progress. At the same time, because the lifting mechanism lifts the battery pack on the working platform, when the operator installs the battery pack on the working platform, there will be more sufficient operating space between the battery pack and the working platform, making the installation process more convenient.

[0007] According to some embodiments of the utility model, the lifting mechanism includes: a telescopic member, one end of which is fixed on one side of the working platform, and the other end of the telescopic member is suitable for passing through the first through cavity and the second through cavity in sequence, and the telescopic member can be extended and retracted in the height direction; a lifting member, which extends parallel to the working platform and is arranged at the other end of the telescopic member, and the lifting member is suitable for lifting the battery pack on the working platform.

[0008] According to some embodiments of the present invention, the telescopic member includes a plurality of telescopic units, the plurality of telescopic units are arranged in a height direction and connected in sequence, and each of the telescopic units can be telescoped in the height direction.

[0009] According to some embodiments of the utility model, each of the telescopic units includes: a first telescopic member and a second telescopic member, wherein the first telescopic member and the second telescopic member are cross-arranged and rotatably connected about the intersection; the first telescopic member of the telescopic unit is rotatably connected to the second telescopic member of the adjacent telescopic unit.

[0010] According to some embodiments of the present utility model, the tooling base is detachably arranged on the tooling base.

[0011] According to some embodiments of the present invention, the test tool further includes: a limit member, which is constructed in multiple pieces and is arranged at intervals along the edge of the work platform, and each of the limit members is suitable for abutting against the tool base in the length direction or the width direction.

[0012] According to some embodiments of the utility model, the plurality of limit members are divided into a first limit member and a second limit member, the first limit member is arranged on both sides of the working platform in the width direction and can be moved in the width direction, and the second limit member is arranged on both sides of the working platform in the length direction and can be moved in the length direction.

[0013] According to some embodiments of the utility model, a first driving member is provided on both side surfaces of the working platform facing away from each other in the width direction, the first driving member is constructed in multiple numbers and each of the first driving member is correspondingly arranged and connected to a first limiting member, and the first limiting member is rotated to drive the first limiting member to move in the width direction; a second driving member is provided on both side surfaces of the working platform facing away from each other in the length direction, the second driving member is constructed in multiple numbers and each of the second driving member is correspondingly arranged and connected to a second limiting member, and the second limiting member is rotated to drive the second limiting member to move in the length direction.

[0014] According to some embodiments of the utility model, a sliding groove is formed on the working platform, the sliding groove is constructed in multiples and is arranged at intervals along the edge of the working platform, and at least a portion of each of the limiting members is movably arranged in one of the sliding grooves.

[0015] According to some embodiments of the utility model, a third matching hole is formed on the tooling base, and a fourth matching hole is formed on the working platform. The fourth matching hole is suitable for aligning and matching with the third matching hole, and a fastener passes through the third matching hole and the fourth matching hole in sequence to connect the tooling base with the working platform; wherein the fourth matching hole is constructed in multiple and spaced-apart manner in multiple rows and columns on the working platform.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of a test tool according to an embodiment of the utility model;

[0019] Figure 2 is a top view of a test tool according to an embodiment of the utility model;

[0020] Figure 3 It is a front view of a test tool according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Test tool 1;

[0023] Working platform 11, first through cavity 111, stopper 112, first stopper 112a, second stopper 112b, first driving member 113a, second driving member 113b, sliding groove 114, fourth matching hole 115;

[0024] Tool base 12, second through cavity 121, first matching hole 122, third matching hole 123;

[0025] Tool support 13, second matching hole 131;

[0026] The lifting mechanism 14 , the telescopic member 141 , the telescopic unit 1411 , the first telescopic member 1411 a , the second telescopic member 1411 b , and the lifting member 142 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the related technology, the battery pack is usually fixed on the vibration platform by a fixing tool. The fixing tool includes a base and a bracket. The base is set on the vibration platform, and the bracket is fixed on the base by fasteners to fix the battery pack between the base and the bracket, so that the battery pack remains stable and receives stable vibration stimulation during the vibration test. However, in actual operation, it is difficult to align the holes on the base with the holes on the bracket, which increases the complexity of installation and debugging and affects the progress of the test.

[0029] Reference below Figure 1-Figure 3 A test tool 1 according to an embodiment of the present invention is described.

[0030] like Figure 1-Figure 3As shown, the test fixture 1 according to the utility model is used for battery vibration test, and the test fixture 1 includes a working platform 11, a fixture base 12, a fixture bracket 13 and a lifting mechanism 14. The working platform 11 is formed with a first through cavity 111 that penetrates in the height direction; the fixture base 12 is arranged on the working platform 11 and is formed with a second through cavity 121 that penetrates in the height direction and communicates with the first through cavity 111, and the fixture base 12 is formed with a first matching hole 122; the fixture bracket 13 is formed with a second matching hole 131, and the second matching hole 112 is formed with a second matching hole 132. 31 is suitable for aligning with the first matching hole 122, and the fastener passes through the second matching hole 131 and the first matching hole 122 in sequence, so that the tooling bracket 13 is connected to the tooling base 12 to fix the battery pack between the tooling bracket 13 and the tooling base 12; the lifting mechanism 14 extends in the height direction and can be retracted in the height direction, one end of the lifting mechanism 14 is fixed to one side of the working platform 11, and the other end of the lifting mechanism is suitable for passing through the first through cavity 111 and the second through cavity 121 in sequence and is suitable for lifting the battery pack on the working platform 11.

[0031] The test fixture 1 of the present application can fix the battery pack on the working platform 11, so as to perform a vibration test on the battery pack. By setting the fixture base 12 and the fixture bracket 13, the fixture base 12 and the fixture bracket 13 are matched and connected to fix the battery pack between the fixture base 12 and the fixture bracket 13, and because the fixture base 12 is set on the working platform 11, the battery pack is fixed on the working platform 11. Specifically, a first matching hole 122 is formed on the fixture base 12, and a second matching hole 131 is formed on the fixture bracket 13. When the working base and the fixture bracket 13 are matched and connected, it is necessary to first align the first matching hole 122 with the second matching hole 131, and then pass the fastener through the second matching hole 131 and the first matching hole 122 in sequence to connect the fixture bracket 13 with the fixture base 12, and because the fixture bracket 13 is pre-set on the battery pack, the battery pack is fixed between the fixture bracket 13 and the fixture base 12. By setting a first through cavity 111 on the working platform 11 and setting a second through cavity 121 on the tooling base 12, the first through cavity 111 is connected to the second through cavity 121, so that the lifting mechanism 14 can sequentially pass through the first through cavity 111 and the second through cavity 121 to lift the battery pack on the working platform 11. By setting the lifting mechanism 14, one end of the lifting mechanism 14 is fixed to one side of the working platform 11, and the other end of the lifting mechanism 14 sequentially passes through the first through cavity 111 and the second through cavity 121 to lift the battery pack on the working platform 11, and the lifting mechanism 14 can be extended and retracted in the height direction, and the position of the battery pack can be flexibly adjusted to facilitate the tooling bracket 13 on the battery pack to cooperate with the tooling base 12, and the alignment of the second matching hole 131 and the first matching hole 122 is more convenient and accurate, which simplifies the installation process of the battery pack and speeds up the test progress. At the same time, because the lifting mechanism 14 lifts the battery pack on the working platform 11, when the operator installs the battery pack on the working platform 11, there will be more sufficient operating space between the battery pack and the working platform 11, making the installation process more convenient.

[0032] Therefore, the test fixture 1 of the present application, by providing a lifting mechanism 14, the lifting mechanism 14 can be extended and retracted in the height direction, and the position of the battery pack can be flexibly adjusted, so that the alignment of the second matching hole 131 and the first matching hole 122 is more convenient and accurate, thereby simplifying the installation process of the battery pack and speeding up the test progress.

[0033] According to some embodiments of the present invention, Figure 1 and Figure 3As shown, the lifting mechanism 14 includes a telescopic member 141 and a lifting member 142. One end of the telescopic member 141 is fixed to one side of the working platform 11, and the other end of the telescopic member 141 is suitable for sequentially passing through the first through cavity 111 and the second through cavity 121. The telescopic member 141 can be extended and retracted in the height direction. The lifting member 142 extends parallel to the working platform 11 and is arranged at the other end of the telescopic member 141. The lifting member 142 is suitable for lifting the battery pack on the working platform 11. By providing the telescopic member 141, when the telescopic member 141 can be extended and retracted in the height direction, the other end of the telescopic member 141 will move relative to one end of the telescopic member 141 in the height direction, so that the lifting mechanism 14 can adapt to the adjustment requirements of different heights, and the lifting mechanism 14 can be more flexible in adjusting the position of the battery pack. By setting up a lifting member 142, the lifting member 142 extends parallel to the work platform 11 and is set at the other end of the telescopic member 141. The lifting member 142 provides a flat and stable supporting surface, which can support the battery pack, keep the battery pack stable, and facilitate the operator to install the battery pack.

[0034] According to some embodiments of the present invention, Figure 3 As shown, the telescopic member 141 includes a plurality of telescopic units 1411, which are arranged in the height direction and connected in sequence, and each telescopic unit 1411 can be telescoped in the height direction. The telescopic member 141 is composed of a plurality of telescopic units 1411, and each telescopic unit 1411 can be telescoped in the height direction, thereby realizing the telescopic extension of the telescopic member 141 as a whole. By providing a plurality of telescopic units 1411, the telescopic range of the telescopic member 141 can be increased, and the position adjustment of the battery pack can be more flexible. In addition, the design of a plurality of telescopic units 1411 can also provide a greater carrying capacity, and the load is dispersed to each telescopic unit 1411, thereby reducing the load of a single telescopic unit 1411 and improving the stability and durability of the telescopic member 141.

[0035] According to some embodiments of the present invention, Figure 3As shown, each telescopic unit 1411 includes a first telescopic member 1411a and a second telescopic member 1411b, the first telescopic member 1411a and the second telescopic member 1411b are arranged crosswise and rotatably connected about the intersection; the first telescopic member 1411a of the telescopic unit 1411 is rotatably connected to the second telescopic member 1411b of the adjacent telescopic unit 1411. By arranging the first telescopic member 1411a and the second telescopic member 1411b, the first telescopic member 1411a and the second telescopic member 1411b are arranged crosswise and rotatably connected together about the intersection, so that the first telescopic member 1411a and the second telescopic member 1411b can rotate relative to each other, change the angle between the first telescopic member 1411a and the second telescopic member 1411b, thereby realizing the extension and contraction of the telescopic unit 1411. By rotatably connecting the other end of the first telescopic part 1411a of the telescopic unit 1411 with the other end of the second telescopic part 1411b of the adjacent telescopic unit 1411, multiple telescopic units 1411 are connected into a whole. Multiple telescopic units 1411 can transmit force to each other. The extension and contraction of one telescopic unit 1411 can drive the extension and contraction of another adjacent telescopic unit 1411, thereby realizing the extension and contraction of the entire telescopic part 141.

[0036] According to some embodiments of the utility model, the tool base 12 is detachably disposed on the tool base 12. By detachably disposing the tool base 12 on the tool base 12, when performing vibration tests on battery packs of different sizes, tool bases 12 of different sizes can be replaced, so that the test tool 1 can adapt to battery packs of different sizes, thereby improving the versatility of the test tool 1. For enterprises that need to test multiple products, the detachable tool base 12 can reduce costs because there is no need to configure a dedicated vibration test tool for each product.

[0037] According to some embodiments of the present invention, Figure 1 and Figure 3 As shown, the test fixture 1 also includes a limiter 112, which is constructed as a plurality of limiters 112 and is spaced along the edge of the working platform 11, and each limiter 112 is suitable for abutting against the fixture base 12 in the length direction or the width direction. By providing a plurality of limiters 112, the plurality of limiters 112 are spaced along the edge of the working platform 11, and the fixture base 12 can be provided between the plurality of limiters 112, and each limiter 112 abuts against the fixture base 12 in the length direction or the width direction, the limiters 112 effectively limit the movement of the fixture base 12, and the battery pack can be kept in a predetermined position during the vibration process, thereby improving reliability.

[0038] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the plurality of limiters 112 are divided into a first limiter 112a and a second limiter 112b. The first limiter 112a is arranged on both sides of the working platform 11 in the width direction and can move in the width direction, and the second limiter 112b is arranged on both sides of the working platform 11 in the length direction and can move in the length direction. By setting the first limiter 112a, the first limiter 112a is arranged on both sides of the working platform 11 in the width direction, and the first limiter 112a can move in the width direction, so that the operator can adjust the position of the first limiter 112a according to the width of the tooling base 12, so that each first limiter 112a stops against the tooling base 12 in the width direction, and the first limiter 112a is more flexible and convenient for limiting the tooling base 12 in the width direction. By setting the second limit piece 112b, the second limit piece 112b is set on both sides of the length direction of the working platform 11, and the second limit piece 112b can be moved in the length direction, so that the operator can adjust the position of the second limit piece 112b according to the length of the tooling base 12, so that each second limit piece 112b is stopped against the tooling base 12 in the length direction, and the second limit piece 112b is more flexible and convenient for limiting the tooling base 12 in the length direction.

[0039] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the working platform 11 is provided with a first driving member 113a on both side surfaces facing away from each other in the width direction, the first driving member 113a is constructed in multiple, and each first driving member 113a is correspondingly arranged and connected to a first limiting member 112a, and the first limiting member 112a is rotated to drive the first limiting member 112a to move in the width direction; the working platform 11 is provided with a second driving member 113b on both side surfaces facing away from each other in the length direction, the second driving member 113b is constructed in multiple, and each second driving member 113b is correspondingly arranged and connected to a second limiting member 112b, and the second limiting member 112b is rotated to drive the second limiting member 112b to move in the length direction. By arranging the first driving member 113a on both side surfaces of the working platform 11 in the width direction, when the first driving member 113a rotates, the first driving member 113a can drive the first limiting member 112a to move in the width direction, and the operator can adjust the position of the first limiting member 112a by controlling the first driving member 113a to adapt to tooling bases 12 of different widths, and the adjustment is simple. Similarly, by arranging the second driving member 113b on both side surfaces of the working platform 11 in the length direction, when the second driving member 113b rotates, the second driving member 113b can drive the second limiting member 112b to move in the length direction, and the operator can adjust the position of the second limiting member 112b by controlling the second driving member 113b to adapt to tooling bases 12 of different lengths.

[0040] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, a sliding groove 114 is formed on the working platform 11. The sliding groove 114 is constructed to be multiple and is arranged at intervals along the edge of the working platform 11. At least a portion of each limiting member 112 is movably arranged in a sliding groove 114. By arranging the sliding groove 114 on the working platform 11, at least a portion of each limiting member 112 is movably arranged in a sliding groove 114 to set the limiting member 112 on the working platform 11. The limiting groove can effectively limit the limiting member 112, so that the limiting member 112 can only move within the range of the limiting groove, thereby improving reliability. And by arranging multiple sliding grooves 114 at intervals along the edge of the working platform 11, it is possible to arrange multiple limiting members 112 at intervals along the edge of the working platform 11, thereby effectively limiting the base tooling between the multiple limiting members 112.

[0041] According to some embodiments of the present invention, Figure 2 As shown, a third matching hole 123 is formed on the tool base 12, and a fourth matching hole 115 is formed on the work platform 11. The fourth matching hole 115 is suitable for aligning with the third matching hole 123, and the fastener passes through the third matching hole 123 and the fourth matching hole 115 in sequence, so that the tool base 12 is connected to the work platform 11; wherein, the fourth matching hole 115 is constructed to be multiple and is arranged in multiple rows and columns on the work platform 11. The connection between the tool base 12 and the work platform 11 is achieved by fasteners. Specifically, a third matching hole 123 is formed on the tool base 12, and a fourth matching hole 115 is formed on the work platform 11. When the tool base 12 needs to be connected to the work platform 11, the third matching hole 123 can be aligned with the fourth matching hole 115, that is, each third matching hole 123 will have a corresponding fourth matching hole 115 aligned with it. Then, fasteners (such as bolts, screws, etc.) are sequentially passed through the fourth matching holes 115 and the third matching holes 123 to firmly connect the tool base 12 to the work platform 11. By configuring the fourth matching holes 115 to be multiple and arranged in multiple rows and columns on the work platform 11, when replacing tool bases 12 of different sizes, there will be fourth matching holes 115 corresponding to the tool base 12 on the work platform 11 to match the tool base 12, so that the test tool 1 has higher adaptability and flexibility, and tool bases 12 of different sizes will have matching holes for installation.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0044] In the description of the present invention, "plurality" means two or more.

[0045] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0046] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A test fixture for battery vibration test, characterized in that: include: A working platform (11), wherein the working platform (11) is formed with a first through cavity (111) that penetrates in a height direction; a tool base (12), the tool base (12) being arranged on the working platform (11) and having a second through cavity (121) penetrating in the height direction and communicating with the first through cavity (111), and a first matching hole (122) being formed on the tool base (12); A tooling bracket (13), wherein a second matching hole (131) is formed on the tooling bracket (13), and the second matching hole (131) is suitable for being aligned with the first matching hole (122), and a fastener passes through the second matching hole (131) and the first matching hole (122) in sequence, so that the tooling bracket (13) is connected to the tooling base (12), so as to fix the battery pack between the tooling bracket (13) and the tooling base (12); A lifting mechanism (14), the lifting mechanism (14) extending in a height direction and being retractable in the height direction, one end of the lifting mechanism (14) being fixed to one side of the working platform (11), and the other end of the lifting mechanism being suitable for sequentially passing through the first through cavity (111) and the second through cavity (121) and being suitable for lifting the battery pack onto the working platform (11).

2. The test tool according to claim 1, characterized in that: The lifting mechanism (14) comprises: a telescopic member (141), one end of the telescopic member (141) being fixed to one side of the working platform (11), the other end of the telescopic member (141) being adapted to sequentially pass through the first through cavity (111) and the second through cavity (121), and the telescopic member (141) being telescopic in height direction; A lifting member (142), the lifting member (142) extending parallel to the working platform (11) and arranged at the other end of the telescopic member (141), the lifting member (142) being suitable for lifting the battery pack onto the working platform (11).

3. The test tool according to claim 2, characterized in that: The telescopic member (141) comprises a plurality of telescopic units (1411), the plurality of telescopic units (1411) are arranged in a height direction and connected in sequence, and each of the telescopic units (1411) can be telescoped in the height direction.

4. The test tool according to claim 3, characterized in that: Each of the telescopic units (1411) comprises: a first telescopic member (1411a) and a second telescopic member (1411b), wherein the first telescopic member (1411a) and the second telescopic member (1411b) are arranged crosswise and are rotatably connected about the intersection; The first telescopic member (1411a) of the telescopic unit (1411) is rotatably connected to the second telescopic member (1411b) of the adjacent telescopic unit (1411).

5. The test tool according to claim 1, characterized in that: The tooling base (12) is detachably arranged on the tooling base (12).

6. The test fixture according to claim 5, characterized in that: Also includes: A limiting member (112), wherein the limiting member (112) is constructed in plurality and is arranged at intervals along the edge of the working platform (11), and each limiting member (112) is suitable for abutting against the tooling base (12) in the length direction or the width direction.

7. The test fixture according to claim 6, characterized in that: The plurality of limit members (112) are divided into a first limit member (112a) and a second limit member (112b); the first limit members (112a) are arranged on both sides of the working platform (11) in a width direction and are movable in the width direction; and the second limit members (112b) are arranged on both sides of the working platform (11) in a length direction and are movable in the length direction.

8. The test fixture according to claim 7, characterized in that: The working platform (11) is provided with first driving members (113a) on both side surfaces facing away from each other in the width direction, the first driving members (113a) are structured in multiples, and each of the first driving members (113a) is arranged and connected to a first limiting member (112a) in correspondence, and the first limiting member (112a) is rotated to drive the first limiting member (112a) to move in the width direction; The working platform (11) is provided with second driving members (113b) on both side surfaces facing away from each other in the length direction. The second driving members (113b) are constructed in multiple numbers and each second driving member (113b) is arranged and connected to a second limiting member (112b) in correspondence. The second limiting member (112b) is rotated to drive the second limiting member (112b) to move in the length direction.

9. The test fixture according to claim 6, characterized in that: A sliding groove (114) is formed on the working platform (11), and the sliding groove (114) is constructed in multiples and is arranged at intervals along the edge of the working platform (11), and at least a part of each of the limiting members (112) is movably arranged in one of the sliding grooves (114).

10. The test fixture according to claim 5, characterized in that: A third matching hole (123) is formed on the tool base (12), and a fourth matching hole (115) is formed on the working platform (11), wherein the fourth matching hole (115) is suitable for being aligned with the third matching hole (123), and a fastener passes through the third matching hole (123) and the fourth matching hole (115) in sequence, so that the tool base (12) is connected to the working platform (11); Wherein, the fourth matching holes (115) are constructed in a plurality and are arranged in multiple rows and columns at intervals on the working platform (11).

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