Durability test tool for new energy automobile battery pack bolt

Abstract

The utility model discloses a durability test tool for a new energy automobile battery pack bolt, which comprises a base and a locking and unlocking gun arranged on the base, the locking and unlocking gun is connected with the battery pack bolt through a connecting bracket assembly, and one side of the battery pack bolt is provided with a nut matched with the battery pack bolt for use; the tool further comprises a linear translation module arranged on the base, the linear translation module can drive the locking and unlocking gun to linearly translate in a reciprocating mode so as to tighten or unfasten a battery pack bolt and a nut, the use condition of the bolt can be truly simulated through the tool, and the durability of the bolt can be conveniently tested.

Description

Technical Field

[0001] The utility model relates to the application field of durability tool testing technology, and in particular to a durability testing tool for bolts of battery packs of new energy vehicles. Background Art

[0002] New energy vehicles are mainly vehicles that use electricity as new energy. Common energy storage methods are charging or replacing battery packs. When replacing the battery pack, the bolts are assembled on the battery pack. When assembling the battery pack, just tighten the bolts on the battery pack and the nuts at the bottom of the frame. If the durability of the bolts is not clear, the bolts are easily locked or loosened after long-term replacement, which can easily cause the battery pack to fall off or be unable to be disassembled;

[0003] In order to ensure the safety of battery pack assembly, the durability of the bolts needs to be tested. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a durability testing tool for bolts of new energy vehicle battery packs. The tool can truly simulate the use of the bolts so as to test the durability of the bolts.

[0005] The technical solution of the utility model is: a durability test tool for new energy vehicle battery pack bolts, comprising a base and a locking and unlocking gun arranged on the base, the locking and unlocking gun is connected to the battery pack bolt through a connecting bracket assembly, and a nut for matching use is arranged on one side of the battery pack bolt;

[0006] It also includes a linear translation module arranged on the base, and the linear translation module can drive the locking and unlocking gun to reciprocate linearly to achieve the tightening or loosening of the battery pack bolts and nuts.

[0007] Furthermore, the connecting bracket assembly includes a connecting base connected to the linear translation module and equipped with a locking and unlocking gun, and an L-shaped bracket fixed to the connecting base, the L-shaped bracket is provided with an opening for a bolt to pass through, and the bolt passes through the opening and abuts against the locking and unlocking gun.

[0008] Furthermore, the inner diameter of the opening is greater than the outer diameter of the bolt.

[0009] Furthermore, a plurality of L-shaped limit blocks are provided at one end of the L-shaped bracket away from the locking and unlocking gun, and the plurality of L-shaped limit blocks are detachably connected to the L-shaped bracket to limit the displacement stroke of the bolt.

[0010] Furthermore, it also includes a fixing bracket assembly for positioning the nut, the fixing bracket assembly includes a fixing seat connected to the base and a pressure cover connected to the fixing seat through a positioning pin, and the nut is located below the pressure cover.

[0011] Furthermore, a through hole is provided on the surface of the nut for use with the positioning pin, and the positioning pin passes through the through hole to position the nut below the gland.

[0012] Furthermore, the inner diameter of the through hole is larger than the outer diameter of the positioning pin.

[0013] Furthermore, the linear translation module includes a slide rail assembly and a driving cylinder arranged on a base.

[0014] Furthermore, the base is provided with a sensor, and the connecting bracket assembly is provided with a baffle for use with the sensor.

[0015] The beneficial technical effects of the utility model are:

[0016] The tool realistically simulates the repeated disassembly and assembly of battery pack bolts and nuts in order to confirm the durability of the bolts and ensure the safety of battery pack assembly.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the linear translation module of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the connecting bracket assembly of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the nut of the utility model being assembled on a fixed bracket assembly;

[0022] Figure 5 It is a structural schematic diagram of the bolt of the utility model.

[0023] The accompanying drawings are marked as follows:

[0024] 100, base; 110, sensor; 200, unlocking gun; 300, connecting bracket assembly; 310, connecting seat; 320, L-shaped bracket; 321, opening; 330, L-shaped limit block; 340, baffle; 400, bolt; 500, fixed bracket assembly; 510, fixed seat; 520, pressure cover; 530, positioning pin; 600, nut; 610, through hole; 700, linear translation module; 710, slide rail assembly; 720, driving cylinder. DETAILED DESCRIPTION

[0025] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0027] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships recorded in the embodiments and shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0028] like Figure 1-Figure 5 As shown, the utility model specifically relates to a durability test tool for a new energy vehicle battery pack bolt 400, comprising a base 100 and a locking and unlocking gun 200 arranged on the base 100, wherein the locking and unlocking gun 200 is connected to the battery pack bolt 400 through a connecting bracket assembly 300, and a nut 600 for matching use is arranged on one side of the battery pack bolt 400;

[0029] The device further includes a linear translation module 700 disposed on the base 100 , and the linear translation module 700 can drive the locking and unlocking gun 200 to perform reciprocating linear translation to achieve tightening or loosening of the battery pack bolts 400 and nuts 600 .

[0030] It should be noted that, under normal circumstances, the bolt 400 is assembled on the battery pack. When assembling the battery pack, the bolt 400 located on the battery pack and the nut 600 located at the bottom of the frame are tightened. In order to ensure the safety of the battery pack assembly, the durability of the bolt 400 needs to be tested.

[0031] First, the bolt 400 and the locking and unlocking gun 200 are abutted against each other through the connecting bracket assembly 300. In order to ensure the continuity of the test, although one end of the bolt 400 is in abutment with the locking and unlocking gun 200, there is also a certain displacement space between the bolt 400 and the locking and unlocking gun 200, so as to truly simulate the state of the locking and unlocking gun 200 when locking and unlocking the bolt 400.

[0032] Secondly, the linear translation module 700 drives the locking and unlocking gun 200 to translate linearly. After the linear translation is in place, the locking and unlocking gun 200 drives the bolt 400 to rotate so as to tighten or release the bolt 400 and the nut 600.

[0033] The connecting bracket assembly 300 includes a connecting seat 310 connected to the linear translation module 700 and equipped with a locking and unlocking gun 200, and an L-shaped bracket 320 fixed to the connecting seat 310. The L-shaped bracket 320 is provided with an opening 321 for the bolt 400 to pass through. The bolt 400 passes through the opening 321 and abuts against the locking and unlocking gun 200.

[0034] The bolt 400 and the locking and unlocking gun 200 are abutted by the L-shaped bracket 320 to facilitate continuity testing.

[0035] The inner diameter of the opening 321 is larger than the outer diameter of the bolt 400 , which truly simulates the positional offset between the bolts 400 , thereby ensuring the accuracy of the test.

[0036] A plurality of L-shaped limit blocks 330 are disposed at one end of the L-shaped bracket 320 away from the locking and unlocking gun 200 . The plurality of L-shaped limit blocks 330 are detachably connected to the L-shaped bracket 320 to limit the displacement stroke of the bolt 400 .

[0037] Among them, there are many detachable connection methods. In this embodiment, the bolt 400 connection is preferably used. The stability of the bolt 400 during operation is ensured by the mutual cooperation between the L-shaped limit block 330 and the rectangular block.

[0038] The fixed bracket assembly 500 also includes a positioning nut 600 , and the fixed bracket assembly 500 includes a fixed seat 510 connected to the base 100 and a pressure cover 520 connected to the fixed seat 510 through a positioning pin 530 , and the nut 600 is located below the pressure cover 520 .

[0039] A through hole 610 for cooperating with the positioning pin 530 is formed on the surface of the nut 600 . The positioning pin 530 passes through the through hole 610 to position the nut 600 below the pressure cover 520 .

[0040] The inner diameter of the through hole 610 is greater than the outer diameter of the positioning pin 530 so as to truly simulate the position offset between the bolt 400 and the nut 600 and ensure the accuracy of the test.

[0041] The linear translation module 700 includes a slide rail assembly 710 and a driving cylinder 720 disposed on the base 100 .

[0042] Furthermore, the base 100 is provided with a sensor 110 , and the connecting bracket assembly 300 is provided with a baffle 340 used in conjunction with the sensor 110 , and the baffle 340 and the sensor 110 cooperate with each other to determine the movement stroke of the locking and unlocking gun 200 .

[0043] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solution of the present invention rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. A durability test tool for new energy vehicle battery pack bolts, characterized in that: It comprises a base and a locking and unlocking gun arranged on the base, wherein the locking and unlocking gun is connected to a battery pack bolt through a connecting bracket assembly, and a nut for matching use is arranged on one side of the battery pack bolt; It also includes a linear translation module arranged on the base, and the linear translation module can drive the locking and unlocking gun to reciprocate linearly to achieve the tightening or loosening of the battery pack bolts and nuts.

2. The durability test tool for new energy vehicle battery pack bolts according to claim 1, characterized in that: The connecting bracket assembly includes a connecting seat connected to the linear translation module and equipped with a locking and unlocking gun, and an L-shaped bracket fixed to the connecting seat. The L-shaped bracket is provided with an opening for a bolt to pass through, and the bolt passes through the opening and abuts against the locking and unlocking gun.

3. The durability test tool for new energy vehicle battery pack bolts according to claim 2, characterized in that: The inner diameter of the opening is greater than the outer diameter of the bolt.

4. The durability test tool for new energy vehicle battery pack bolts according to claim 3, characterized in that: A plurality of L-shaped limit blocks are arranged at one end of the L-shaped bracket away from the locking and unlocking gun, and the plurality of L-shaped limit blocks are detachably connected to the L-shaped bracket to limit the displacement stroke of the bolt.

5. The durability test tool for new energy vehicle battery pack bolts according to claim 1, characterized in that: It also includes a fixed bracket assembly with a positioning nut. The fixed bracket assembly includes a fixed seat connected to the base and a pressure cover connected to the fixed seat through a positioning pin, and the nut is located below the pressure cover.

6. The durability test tool for new energy vehicle battery pack bolts according to claim 5, characterized in that: A through hole is provided on the surface of the nut for use with the positioning pin, and the positioning pin passes through the through hole to position the nut below the gland.

7. The durability test tool for new energy vehicle battery pack bolts according to claim 6, characterized in that: The inner diameter of the through hole is greater than the outer diameter of the positioning pin.

8. The durability test tool for new energy vehicle battery pack bolts according to claim 1, characterized in that: The linear translation module comprises a slide rail assembly and a driving cylinder arranged on a base.

9. The durability test tool for new energy vehicle battery pack bolts according to claim 8, characterized in that: The base is provided with a sensor, and the connecting bracket assembly is provided with a blocking piece used in conjunction with the sensor.

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