Stepless torsion tool

Abstract

The utility model discloses an electrodeless torsion tool which comprises a base in a cube shape. The number of the torsion positioning pieces is six, any torsion positioning piece is used for being arranged in a through hole in a product needing to be detected in a penetrating mode, and the torsion positioning pieces are arranged on different side faces of the base; one point at the same position of the periphery of each torsion positioning piece is perpendicular to the center line of the torsion positioning piece to form a position line L1, the center point of each side face of the base is perpendicular to one edge of the side face to form a position line L2, the deflection angle alpha between the position line L1 and the position line L2 is larger than or equal to 0 degree and smaller than 90 degrees; the deflection angles alpha of every two adjacent torsion positioning pieces (2) are different. By adopting the scheme, the utility model provides the stepless torsion tool which can be installed and used in a maximum range by selecting the torsion positioning piece with the deflection angle alpha closest to the perforation angle of the product to be detected to penetrate through the perforation on the product to be detected.

Description

Technical Field

[0001] The utility model belongs to the field of poles, and in particular relates to a stepless torque tooling. Background Art

[0002] The top cover and poles of lithium batteries have torque requirements, which involve torque tooling.

[0003] Specifically, reference may be made to a strength testing fixture for a new energy battery cover plate pole disclosed in Chinese patent number CN202222740303.X. A square torsion bar and the first, second, and third screw hole seats of a regular hexagonal prism are provided on the test chuck (torque tooling). Corresponding perforations are provided on the pole so that the torsion bar passes through the perforations on the pole, and the pole and the test chuck are fixedly connected by a nut cooperating with the threaded end, and then the push-pull force and torque tests in the X, Y, and Z directions are realized through the first, second, and third screw hole seats.

[0004] Most existing torque fixtures are polarized, meaning they can only be assembled using a torsion bar. However, the angle between the pole and the top cover can be misaligned, making the torque fixture impossible to install. Failure to install the fixture requires replacing the product, which can lead to repeated installations. This is time-consuming and labor-intensive, and can even lead to defects, resulting in product or fixture failure. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a stepless torque tooling that can meet the maximum range of installation needs by selecting a torque positioning piece with a deflection angle α closest to the perforation angle of the product to be tested and passing it through the perforation on the product to be tested.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A stepless torque tooling, characterized in that it comprises: a base, the base is in the shape of a cube; torque positioning pieces, the number of the torque positioning pieces is 6, any one of the torque positioning pieces is used to penetrate a hole on a product to be inspected, and each of the torque positioning pieces is arranged on a different side of the base; a point at the same position on the periphery of each of the torque positioning pieces is perpendicular to the center line of the torque positioning piece to form a position line L1, and the center point of each side surface of the base is perpendicular to one of the sides of the side surface to form a position line L2, and the deflection angle between the position line L1 and the position line L2 is α, 0°≤α<90°; the deflection angle α of each two adjacent torque positioning pieces (2) is different.

[0008] The present invention is further configured such that: the torsion positioning member and the base are integrally formed, welded or plugged together.

[0009] The present invention is further configured such that the deflection angles α of the torsion positioning members are different.

[0010] The present invention is further configured such that the deflection angles α of the torsion positioning members are respectively 0°, 15°, 30°, 45°, 60° and 75°.

[0011] The utility model is further configured as follows: the outer periphery of the torsion positioning member is a regular polygon.

[0012] The utility model is further configured as follows: the outer periphery of the torsion positioning member is in the shape of a regular quadrangular prism or a regular hexagonal prism.

[0013] The present invention is further configured such that: the torsion positioning piece is located at the center of the side surface corresponding to the base, and the length direction of the torsion positioning piece is perpendicular to the side surface corresponding to the base.

[0014] By adopting the above technical solution, after fixing the tooling on the product to be tested, the torque positioning piece closest to the deflection angle α is selected on the base by observing the angle of the perforation on the product, so that the perforation on the product is penetrated by the torque positioning piece, so that the torque of the product can be tested in conjunction with a torque meter or other device. This not only facilitates assembly, but also maximizes the adaptation of the torque tooling and the product to meet the installation and use requirements to the greatest extent, thereby preventing the need for product replacement, damage to the product or torque tooling, etc. due to the inability to assemble the torque tooling on the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is an assembly drawing of a specific embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of a torsion tooling and a product in a separate state in a specific embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the torsion tooling and product assembly state in a specific embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 0° in a specific embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 15° in a specific embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 30° in a specific embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 45° in a specific embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 60° in a specific embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of a torsion positioning member facing forward with a deflection angle α of 75° in a specific embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Base;

[0027] 2. Torque positioning parts;

[0028] 3. Products;

[0029] 31. Perforation. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention and thus more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention. The specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention. The conventional selections and replacements made by those skilled in the art under the guidance of the present invention should be deemed to be within the scope of protection claimed by the present invention.

[0031] like Figures 1-9 As shown, the utility model discloses a stepless torque tooling for assembling a product 3 to be tested. Usually, a perforation 31 is opened on the product 3 to be tested, so that the torque of the product 3 can be tested with a torque meter or other device. It is often used to test the torque of the top cover and the pole of the lithium battery. The structure includes:

[0032] Base 1, base 1 is a cube;

[0033] Torque positioning parts 2, the number of torque positioning parts 2 is 6, the outer peripheral shape of each torque positioning part 2 is adapted to the shape of the through-hole 31 on the product 3 to be tested, so that each torque positioning part 2 can be penetrated by the through-hole 31 on the product 3 to be tested. In addition, each torque positioning part 2 is arranged on a different side of the base 1, so that when any torque positioning part 2 is matched with the product 3 to be tested, the other torque positioning parts 2 do not point to the product 3 to be tested, so as to prevent the other torque positioning parts 2 from interfering with the product 3 to be tested.

[0034] Among them, a point at the same position on the outer periphery of each torsion positioning member 2 is perpendicular to the center line of the torsion positioning member 2 to form a position line L1, and the center point of each side surface of the base 1 is perpendicular to one of the sides of the side surface to form a position line L2. The deflection angle between the position line L1 and the position line L2 is α, 0°≤α<90°. Specifically, the outer periphery of the torsion positioning member 2 in this embodiment is a regular hexagonal prism, so that the intersection of one edge of the regular hexagonal prism of the torsion positioning member 2 and the corresponding side surface of the base 1 is selected as the intersection point perpendicular to the center line of the torsion positioning member 2 to form L1;

[0035] In addition, the deflection angles α of the two adjacent torsion positioning members 2 are different.

[0036] Therefore, after fixing the tooling on the product 3 to be tested, the torque positioning piece 2 closest to the deflection angle α is selected on the base 1 by observing the angle of the through hole 31 on the product 3, so that the through hole 31 on the product 3 is penetrated by the torque positioning piece 2, so that the torque of the product 3 can be tested in conjunction with devices such as a torque meter. This not only facilitates assembly, but also maximizes the adaptation of the torque tooling and the product 3 to meet the installation and use requirements to the greatest extent, thereby preventing the need to replace the product 3 or damage the product 3 or the torque tooling due to the inability to be assembled on the product 3.

[0037] Among them, since each torsion positioning member 2 can be used to penetrate the through hole 31, it can be used as a stepless tool.

[0038] It should be noted that since the base 1 is a cube, all side surfaces of the base 1 are squares, that is, the center point of the side surface of the base 1 can be perpendicular to any side of the side surface to form a position line L2, so the closest position line L2 is selected to ensure that the deflection angle α is always within the range of 0°-90°. When in use, the relative position of the through-hole 31 and the torque locating member 2 can also be adjusted by rotating at 90°, 180°, and 270°, that is, one torque locating member 2 can cover the through-holes 31 in 4 quadrants.

[0039] In addition, it can also be used in conjunction with other detection devices to perform detection such as push-pull force, etc.

[0040] Preferably, the deflection angles α of the torsion positioning members 2 in this embodiment are different, so as to maximize the adaptability range of the torsion tooling.

[0041] Optimally, the deflection angles α of the torsion positioning members 2 are 0°, 15°, 30°, 45°, 60° and 75°, respectively, so as to be evenly arranged at intervals of 15° within the range of 0°-90° to optimize the adaptation range.

[0042] This embodiment adopts a regular hexagonal prism shape, and other embodiments may adopt other polygonal prism shapes or other special shapes, such as a regular quadrangular prism shape.

[0043] The torque positioning member 2 and the base 1 in this embodiment are integrally formed, so that the entire structure is a single component with optimized connection strength and a simpler structure. In other embodiments, the torque positioning member 2 and the base 1 can also be welded or plugged together.

[0044] Specifically, the torque locating member 2 is located at the center of the side surface corresponding to the base 1, so that the center line of the torque locating member 2 passes through the center point of the side surface corresponding to the base 1, and the length direction of the torque locating member 2 is perpendicular to the side surface corresponding to the base 1, so that the torque locating member 2 passes through the through hole 31 of the product 3 along the length direction, and then the base 1 rotates along the center line passing through the center point of the side surface to achieve coaxial rotation of the torque locating member 2.

[0045] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stepless torque tool, characterized in that: include: A base (1), wherein the base (1) is in the shape of a cube; Torque positioning members (2), the number of the torque positioning members (2) is 6, any one of the torque positioning members (2) is used to penetrate a through hole (31) on a product (3) to be inspected, and each of the torque positioning members (2) is arranged on a different side of the base (1); A point at the same position on the periphery of each of the torsion positioning members (2) is perpendicular to the center line of the torsion positioning member (2) to form a position line L1, and a center point of each side surface of the base (1) is perpendicular to one of the sides of the side surface to form a position line L2, and a deflection angle between the position line L1 and the position line L2 is α, 0°≤α<90°; The deflection angles α of the two adjacent torsion positioning members (2) are different.

2. The stepless torque tooling according to claim 1, characterized in that: The torque positioning member (2) and the base (1) are integrally formed, welded, or plugged together.

3. The stepless torque tooling according to claim 1, characterized in that: The deflection angles α of the torsion positioning members (2) are different.

4. The stepless torque tooling according to claim 3, characterized in that: The deflection angles α of the torsion positioning members (2) are respectively 0°, 15°, 30°, 45°, 60° and 75°.

5. The stepless torque tooling according to claim 1, characterized in that: The outer periphery of the torsion positioning member (2) is in the shape of a regular polygon.

6. The stepless torque tooling according to claim 5, characterized in that: The outer periphery of the torsion positioning member (2) is in the shape of a regular quadrangular prism or a regular hexagonal prism.

7. The stepless torque tooling according to claim 1, characterized in that: The torsion positioning member (2) is located at the center of the side surface corresponding to the base (1), and the length direction of the torsion positioning member (2) is perpendicular to the side surface corresponding to the base (1).

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