Universal push-pull torsion detection tool

Abstract

The utility model discloses a general push-pull torsion detection tool, which is used for positioning a top cover and comprises a rack, a clamping mechanism is arranged on the rack, and the clamping mechanism comprises longitudinal clamping parts which are symmetrically arranged on the rack and can be arranged in a relative displacement manner. The clamping mechanism further comprises transverse clamping parts which are symmetrically arranged between the longitudinal clamping parts and can be arranged in a relative displacement mode, the longitudinal clamping parts are used for clamping a first opposite side of the top cover, and the transverse clamping parts are used for clamping a second opposite side of the top cover. The rack is further provided with a positioning mechanism, the positioning mechanism comprises a longitudinal long hole, a transverse long hole, screw holes and butterfly screws, the longitudinal long hole and the transverse long hole are formed in the rack and are formed in the displacement direction of the longitudinal clamping part and the displacement direction of the transverse clamping part respectively, and the screw holes are formed in the longitudinal clamping part and the transverse clamping part respectively; the butterfly screws penetrate through the longitudinal long holes and the transverse long holes and then are in threaded connection with the corresponding screw holes. The push-and-pull torsion test fixture can clamp top covers with different sizes to perform push-and-pull torsion tests.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a universal push-pull torque detection tool. Background Art

[0002] Lithium batteries are one of the main power sources for electric vehicles. The top cover is one of the important components of lithium batteries. The top cover not only seals the lithium battery but also serves as the energy transmission medium of the lithium battery. Its structure directly affects the reliability of the lithium battery. The pole is the main stress-bearing part of the top cover, so it needs to be tested for safety, especially the push-pull and torque tests on the pole to test the strength limit of the pole. Currently, manufacturers on the market usually use positioning fixtures to fix the top cover when testing the pole, and then use a torque wrench to test the pole. Therefore, the positioning fixture of the top cover is particularly important. However, the positioning fixtures currently on the market are usually complex in structure, difficult to operate, and have poor versatility. Utility Model Content

[0003] The purpose of the utility model is to provide a universal push-pull torque detection tool designed to solve the deficiencies of the above-mentioned technology.

[0004] The utility model designs a universal push-pull torque detection tool for positioning a top cover, including a frame, a clamping mechanism on the frame, the clamping mechanism including longitudinal clamping parts symmetrically arranged on the frame and capable of relative displacement, the clamping mechanism also including transverse clamping parts symmetrically arranged between the longitudinal clamping parts and capable of relative displacement, the longitudinal clamping parts being used to clamp a first pair of sides of the top cover, and the transverse clamping parts being used to clamp a second pair of sides of the top cover; the frame is also provided with a positioning mechanism, the positioning mechanism including a longitudinal elongated hole, a transverse elongated hole, a screw hole and a butterfly screw, the longitudinal elongated hole and the transverse elongated hole being opened on the frame and respectively arranged along the displacement directions of the longitudinal clamping part and the transverse clamping part, screw holes are both provided on the longitudinal clamping part and the transverse clamping part, the butterfly screws pass through the longitudinal elongated hole and the transverse elongated hole and are threadedly connected with the corresponding screw holes.

[0005] Preferably, the longitudinal clamping portion includes two clamping blocks 1 relatively distributed at the first pair of sides, each clamping block 1 is respectively provided with a slider 1, and the frame is provided with two slide rails 1 which are symmetrically distributed along the longitudinal direction and slideably cooperate with the corresponding slider 1.

[0006] Further optimization is carried out in that the frame is provided with guide blocks at both lateral ends of the clamping block 1, the guide blocks are provided with guide grooves extending longitudinally, the clamping block 1 is provided with threaded holes and adjusting bolts, the adjusting bolts pass through the guide grooves and are threadedly connected to the threaded holes, so that the clamping block 1 can move back and forth longitudinally along the guide grooves and be locked by the adjusting bolts.

[0007] Further optimization is performed, whereby a first mounting groove for accommodating the first pair of edges is respectively provided on one opposite surface of the two clamping blocks.

[0008] Further optimized, the clamping block 1 includes a bottom plate and a top plate, the top plate is connected to the top of the bottom plate, the side of the bottom plate is provided with an L-shaped stepped surface, the bottom surface of the side of the top plate and the L-shaped stepped surface are combined to form a first mounting groove, the threaded hole is opened on the bottom plate, and the slider 1 is connected to the bottom of the bottom plate.

[0009] Preferably, the first pair of sides are long sides of the top cover, and the second pair of sides are short sides of the top cover.

[0010] Further optimized, the transverse clamping part includes two clamping blocks 2 relatively distributed on the second pair of sides, and the opposite surfaces of the two clamping blocks 2 are provided with second mounting grooves for accommodating the second pair of sides. Each of the clamping blocks 2 is respectively provided with a slider 2, and the slider 2 forms a sliding fit with the transverse elongated hole.

[0011] Further optimization is that the frame is provided with two lead screws which are symmetrically distributed along the transverse direction, each of the lead screws is slidably connected to a slider 2, and the clamping block 2 is correspondingly connected to the slider 2.

[0012] Further optimization is that the number of the longitudinal long holes is at least two, and they are evenly distributed along the horizontal intervals; the number of sliders corresponding to each clamping block is two, and they are symmetrically distributed in the horizontal direction, and the number of the slide rails is the same as that of the sliders.

[0013] Preferably, the frame includes a table top, a support portion and a base, the clamping mechanism is arranged on the table top, the support portion connects the base and the table top, the support portion includes a support block and a support column, there are two support blocks, and they are respectively located below the adjacent first pair of sides and second pair of sides, and the support column is located below the other first pair of sides.

[0014] The technical effect of this utility model is that the frame is provided with a longitudinal clamping portion and a transverse clamping portion, which clamp to the first and second opposite sides of the top cover respectively, so that the top cover can be stably clamped and positioned; the longitudinal clamping portion and the transverse clamping portion are each composed of two clamping blocks that can be displaced relative to each other, thereby clamping top covers of different sizes, forming a universal positioning tool. After being clamped, the top cover of the utility model is placed horizontally, which facilitates the test wrench to perform push-pull force and torque testing on the pole, resulting in more accurate test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top perspective view of the overall structure of the utility model;

[0016] Figure 2 This is a top-down three-dimensional exploded view of the overall structure of the utility model;

[0017] Figure 3 This is a bottom-up stereogram of the overall structure of the utility model;

[0018] Figure 4 This is a three-dimensional exploded view of the overall structure of the utility model when viewed from above;

[0019] Figure 5 It is a rear view of the transverse clamping portion of the present invention;

[0020] Figure 6 It is a structural explosion diagram of the transverse clamping part in the utility model.

[0021] In the figure: 1, top cover; 11, first opposite side; 12, second opposite side; 2, frame; 21, table; 22, support portion; 221, support block; 222, support column; 23, base;

[0022] 3. Clamping mechanism; 31. Longitudinal clamping portion; 311. Clamping block 1; 3111. Bottom plate; 3112. Top plate; 3113. L-shaped stepped surface;

[0023] 312. Slider 1; 313. Slide rail 1; 314. Guide block; 315. Guide groove; 316. Threaded hole; 317. Adjusting bolt; 318. First mounting groove;

[0024] 32. Horizontal clamping portion; 321. Clamping block 2; 322. Second mounting groove; 323. Slider 2; 324. Lead screw; 3241. Polygonal inner hole;

[0025] 4. Positioning mechanism; 41. Longitudinal elongated hole; 42. Horizontal elongated hole; 43. Screw hole; 44. Butterfly screw;

[0026] 5. Wrench; 51. Installation end; 52. Handle force application end. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0028] like Figure 1 and 2As shown, the universal push-pull torque detection tooling of the present invention includes a frame 2, and a clamping mechanism 3 is provided on the frame 2. The clamping mechanism 3 includes a longitudinal clamping portion 31 and a transverse clamping portion 32. The longitudinal clamping portion 31 is clamped to the first opposite side 11 of the top cover 1, and the transverse clamping portion 32 is clamped to the second opposite side 12 of the top cover 1. The top cover 1 is a rectangular plate structure. Therefore, the four sides of the top cover 1 are clamped, thereby positioning the top cover 1; wherein, there are two longitudinal clamping portions 31, which are symmetrically arranged on the frame 2, and can be relatively moved back and forth horizontally. Similarly, the two transverse clamping portions 32 can also be relatively moved back and forth horizontally, so that the top cover 1 is clamped and fixed under the joint action of the longitudinal clamping portion 31 and the transverse clamping portion 32. It can be applicable to top covers 1 of different sizes and has good versatility.

[0029] A positioning mechanism 4 is further provided on the frame 2 , and the positioning mechanism 4 is used to lock the top cover 1 so that the top cover 1 does not shift after being clamped by the longitudinal clamping portion 31 and the transverse clamping portion 32 .

[0030] like Figure 3 and 4 As shown, the positioning mechanism 4 includes a longitudinal elongated hole 41, a transverse elongated hole 42, a screw hole 43 and a butterfly screw 44. The longitudinal elongated hole 41 and the transverse elongated hole 42 are opened on the frame 2. The longitudinal elongated hole 41 extends along the displacement direction of the longitudinal clamping portion 31, and the transverse elongated hole 42 extends along the displacement direction of the transverse clamping portion 32. Screw holes 43 are opened on the longitudinal clamping portion 31 and the transverse clamping portion 32. The butterfly screw 44 passes through the longitudinal elongated hole 41 and the transverse elongated hole 42 and is threadedly connected to the corresponding screw hole 43. The longitudinal clamping portion 31 and the transverse clamping portion 32 are fixed by hand-tightening the butterfly screw 44.

[0031] The longitudinal clamping portion 31 includes two clamping blocks 311 relatively distributed at the first pair of sides 11, and a slider 312 is provided at the bottom of each clamping block 311. The frame 2 is provided with two slide rails 313 symmetrically distributed along the longitudinal direction, and the slider 312 forms a sliding fit with the corresponding slide rail 313.

[0032] Furthermore, in this embodiment, there are two clamping blocks 311, and the clamping blocks 311 are of rectangular plate structure. Each clamping block 311 is provided with two sliders 312, and the two sliders 312 are laterally symmetrically distributed at the bottom of the clamping block 311. The number of slide rails 313 is the same as that of sliders 312.

[0033] The frame 2 is provided with guide blocks 314 at both lateral ends of the clamping block 311. The guide blocks 314 are provided with guide grooves 315. The guide grooves 315 extend longitudinally relative to the frame 2. The clamping block 311 is provided with threaded holes 316 and adjusting bolts 317. The adjusting bolts 317 pass through the guide grooves 315 and are screwed into the threaded holes 316, so that the clamping block 311 can move longitudinally along the guide grooves 315. After moving to a predetermined position, the clamping block 311 is locked and positioned at this position by tightening the adjusting bolts 317. That is, the two clamping blocks 311 are relatively displaced along the guide grooves 315 to clamp the first opposite sides 11 of the top cover 1, and then the clamping block 311 and the guide block 314 are fixed by the adjusting bolts 317.

[0034] Furthermore, first mounting grooves 318 are respectively provided on the opposite surfaces of the two clamping blocks 311, and the first pair of sides 11 of the top cover 1 are just embedded in the first mounting grooves 318, which facilitates clamping by the clamping blocks 311 and improves the clamping stability.

[0035] Furthermore, the clamping block 311 includes a bottom plate 3111 and a top plate 3112, the top plate 3112 is connected to the top of the bottom plate 3111, the side of the bottom plate 3111 is provided with an L-shaped stepped surface 3113, the bottom surface of the side of the top plate 3112 and the L-shaped stepped surface 3113 are combined to form a first mounting groove 318, the threaded hole 316 is opened on the bottom plate 3111, and the slider 312 is connected to the bottom of the bottom plate 3111.

[0036] like Figure 5 and 6 As shown, the transverse clamping portion 32 includes two clamping blocks 321 relatively distributed on the second pair of sides 12, and a slider 323 is provided at the bottom of each clamping block 321. The slider 323 forms a sliding fit with the transverse elongated hole 42, that is, the slider 323 can be moved back and forth along the transverse elongated hole 42, and the opposite surfaces of the two clamping blocks 321 are provided with a second mounting groove 322 for accommodating the second pair of sides 12. In this embodiment, a groove body is directly opened on the side of the clamping block 321 to form the second mounting groove 322.

[0037] The frame 2 is provided with two lead screws 324 distributed symmetrically along the horizontal direction, and each lead screw 324 is slidably connected to a slider 2 323, and the clamping block 2 321 is correspondingly connected to the slider 2 323. The clamping block 2 321 is located at the top of the slider 2 323, and the bottom of the clamping block 2 321 extends from the horizontal elongated hole 42 to the bottom and is connected to the lead screw 324 through the slider 2 323. The lead screw 324 is driven to rotate and the slider 2 323 is driven to move, thereby realizing the clamping action of the clamping block 2 321, that is, the lead screw 324 is used as a driving force to make the slider 2 323 move back and forth along the horizontal elongated hole 42.

[0038] It should be noted that one end of the lead screw 324 has a polygonal inner hole 3241 for connecting an external tool such as a wrench to drive the lead screw 324 to rotate.

[0039] Furthermore, there are at least two longitudinal elongated holes 41 , which are evenly distributed along the transverse direction, so that the clamping block 1 311 can be more stable when displaced.

[0040] In this embodiment, the first pair of sides 11 are long sides of the top cover 1 , and the second pair of sides 12 are short sides of the top cover 1 .

[0041] Therefore, the clamping mechanism 3 moves and clamps the four sides of the top cover 1, and then positions and fixes it through the positioning mechanism 4, and then the push-pull and torsion tests can be performed on the poles on the top cover 1.

[0042] Furthermore, the frame 2 includes a table 21, a support portion 22 and a base 23. The clamping mechanism 3 is arranged on the table 21. Except for the lead screw 324, the other components of the clamping mechanism 3 are all arranged on the table 21. The lead screw 324 is arranged at the bottom of the table 21 so that the lead screw 324 does not interfere with the sliders. The support portion 22 connects the base 23 and the table 21. The support portion 22 includes a support block 221 and a support column 222. In this embodiment, there are two support blocks 221, which are respectively located below the adjacent first pair of sides 11 and the second pair of sides 12. The support column 222 is located below the other first pair of sides 11. The support column 222 forms a point support, while the support block 221 forms a line or surface support, so that the table 21 can accurately control the flatness, and avoid the uneven table 21 causing the top cover 1 to be uneven, thereby affecting the push-pull force and torque test of the top cover 1.

[0043] The present invention also includes a wrench 5, one end of which is provided with a mounting end 51 that cooperates with the pole part of the top cover 1, and the other end is a handle force-applying end 52. By applying force to the handle force-applying end 52 manually or with a tool, the mounting end 51 of the wrench 5 twists or pushes and pulls the pole part of the top cover 1, thereby performing push-pull and torque tests.

[0044] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. A universal push-pull torque detection tool for positioning a top cover (1), characterized in that: The invention comprises a frame (2), wherein the frame (2) is provided with a clamping mechanism (3), wherein the clamping mechanism (3) comprises longitudinal clamping parts (31) symmetrically arranged on the frame (2) and capable of relative displacement, and the clamping mechanism (3) further comprises transverse clamping parts (32) symmetrically arranged between the longitudinal clamping parts (31) and capable of relative displacement, wherein the longitudinal clamping parts (31) are used to clamp the first pair of sides (11) of the top cover (1), and the transverse clamping parts (32) are used to clamp the second pair of sides (12) of the top cover (1); the frame (2) is also provided with a positioning mechanism ( 4), the positioning mechanism (4) includes a longitudinal long hole (41), a transverse long hole (42), a screw hole (43) and a butterfly screw (44), the longitudinal long hole (41) and the transverse long hole (42) are opened on the frame (2) and are respectively arranged along the displacement direction of the longitudinal clamping part (31) and the transverse clamping part (32), the longitudinal clamping part (31) and the transverse clamping part (32) are both provided with a screw hole (43), and the butterfly screw (44) passes through the longitudinal long hole (41) and the transverse long hole (42) and is threadedly connected with the corresponding screw hole (43).

2. A universal push-pull torque detection tool according to claim 1, characterized in that: The longitudinal clamping portion (31) includes two clamping blocks (311) relatively distributed at the first pair of sides (11), each of the clamping blocks (311) is provided with a slider (312), and the frame (2) is provided with two slide rails (313) symmetrically distributed along the longitudinal direction and slidingly engaged with the corresponding slider (312).

3. The universal push-pull torque detection tool according to claim 2, characterized in that: The frame (2) is provided with guide blocks (314) at both transverse ends of the clamping block (311), and the guide blocks (314) are provided with guide grooves (315) extending longitudinally. The clamping block (311) is provided with threaded holes (316) and adjusting bolts (317), and the adjusting bolts (317) pass through the guide grooves (315) and are threadedly connected to the threaded holes (316), so that the clamping block (311) can move longitudinally back and forth along the guide grooves (315) and be locked by the adjusting bolts (317).

4. The universal push-pull torque detection tool according to claim 3, characterized in that: The two clamping blocks (311) are provided on opposite surfaces thereof with first mounting grooves (318) for accommodating the first pair of edges (11).

5. The universal push-pull torque detection tool according to claim 3, characterized in that: The clamping block (311) includes a bottom plate (3111) and a top plate (3112), wherein the top plate (3112) is connected to the top of the bottom plate (3111), and the side of the bottom plate (3111) is provided with an L-shaped stepped surface (3113), and the bottom surface of the side of the top plate (3112) and the L-shaped stepped surface (3113) are combined to form a first mounting groove (318), the threaded hole (316) is opened on the bottom plate (3111), and the slider (312) is connected to the bottom of the bottom plate (3111).

6. The universal push-pull torque detection tool according to claim 1, characterized in that: The first pair of sides (11) are the long sides of the top cover (1), and the second pair of sides (12) are the short sides of the top cover (1).

7. The universal push-pull torque detection tool according to claim 6, characterized in that: The transverse clamping portion (32) includes two clamping blocks (321) relatively distributed on the second pair of sides (12), and second mounting grooves (322) for accommodating the second pair of sides (12) are provided on the opposite surfaces of the two clamping blocks (321). Each of the clamping blocks (321) is respectively provided with a slider (323), and the slider (323) forms a sliding fit with the transverse elongated hole (42).

8. The universal push-pull torque detection tool according to claim 7, characterized in that: The frame (2) is provided with two lead screws (324) symmetrically distributed along the transverse direction, each lead screw (324) is slidably connected to a second slider (323), and the second clamping block (321) is correspondingly connected to the second slider (323).

9. The universal push-pull torque detection tool according to claim 2, characterized in that: The number of the longitudinal long holes (41) is at least two, and they are evenly distributed along the transverse intervals; the number of the sliding blocks (312) corresponding to each clamping block (311) is two, and they are symmetrically distributed in the transverse direction, and the number of the sliding rails (313) is the same as that of the sliding blocks (312).

10. The universal push-pull torque detection tool according to claim 1, characterized in that: The frame (2) comprises a table top (21), a support portion (22) and a base (23); the clamping mechanism (3) is arranged on the table top (21); the support portion (22) connects the base (23) and the table top (21); the support portion (22) comprises a support block (221) and a support column (222); there are two support blocks (221) and the support blocks (221) are respectively located below the adjacent first pair of sides (11) and the second pair of sides (12); the support column (222) is located below the other first pair of sides (11).

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