CN215894263U

CN215894263U - Destructive torque experiment jig

Info

Publication number: CN215894263U
Application number: CN202122170733.8U
Authority: CN
Inventors: 李莎; 许晨辉; 陈孝君
Original assignee: Ningbo Xintai Machinery Co Ltd
Current assignee: Ningbo Xintai Machinery Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-22
Anticipated expiration: 2031-09-09

Abstract

The utility model belongs to the technical field of nut testing for new energy, and provides a destructive torque experiment jig which comprises a shell, a disc-shaped threaded piece, clamping jaws and an end cover, wherein the shell is positioned at the front part of the disc-shaped threaded piece, the end cover is positioned at the rear part of the disc-shaped threaded piece, a clamping opening and a movable opening which are communicated are formed in the shell, the three clamping jaws are movably positioned at the movable opening, a testing nut is positioned at the clamping opening, the disc-shaped threaded piece is provided with a thread matching end, and the thread matching end is matched with the clamping jaw parts and drives the clamping jaws to move inwards to clamp the testing nut at the clamping opening. The utility model has the advantages that the size can be adjusted, so that the device is suitable for bolts with different nominal diameters, and the test process and the screwdriver management are simplified; meanwhile, in the test process, the test nut can be continuously clamped to prevent loosening.

Description

Destructive torque experiment jig

Technical Field

The utility model belongs to the technical field of nut testing for new energy, and relates to a destructive torque experiment jig.

Background

With the development of new energy vehicles, the application of various riveting bolts becomes more extensive, the quality of the riveting nut can affect the production quality of the whole battery box, in a breaking torque experiment of the riveting bolt, part of standards require that the testing nut and related jigs cannot contact with a base material in the experiment process, the existing mode is to use the nut with the cap as the testing nut, but the nut with the cap has low strength and is easy to be burst by the bolt in the experiment process, at present, different-size screwdrivers including M5, M6, M8 and M10 need to be designed aiming at bolts with different nominal diameters, and the experiment process needs to be switched, so that the operation and the management are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a destructive torque experiment jig which is simple in structure, convenient to operate and capable of improving the testing efficiency.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a destroy moment of torsion experiment tool, its characterized in that, including casing, dish type screw thread spare, jack catch and end cover, the casing is located the front portion of dish type screw thread spare, and the end cover is located the rear portion of dish type screw thread spare, the casing on have the clamp mouth and the movable opening of UNICOM, three jack catch mobilizable be located movable opening department, test nut is located the clamp mouth department, dish type screw thread spare screw thread mating end, screw thread mating end and jack catch portion cooperation and drive the jack catch after the inward movement tight test nut of clamp mouth department.

In the above-mentioned breaking torque test jig, the rear portion of the disc-shaped threaded member has a sleeve portion, and the sleeve portion is connected with an external wrench.

In the above-mentioned destructive torque experiment fixture, the movable lug is arranged on both sides of the movable opening, the jaw is provided with a slot matched with the movable lug, and the jaw is provided with a tooth-shaped part matched with the thread matching end.

In the above-mentioned destructive torque experiment tool, the claw is provided with a protrusion, and the protrusion clamps the test nut.

Compared with the prior art, the utility model has the advantages that the size can be adjusted, so that the device is suitable for bolts with different nominal diameters, and the test process and the screwdriver management are simplified; meanwhile, in the test process, the test nut can be continuously clamped to prevent loosening.

Drawings

FIG. 1 is a schematic view of the overall structure of the breaking torque test fixture;

fig. 2 is a schematic view of the matching structure of the disc-type screw member and the jaw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting to the scope of the present invention.

In the figure, a housing 100; a disc-shaped screw 200; a threaded mating end 201; a sleeve portion 202; a jaw 300; a card slot 301; a tooth-shaped portion 302; a bulge 303; an end cap 400; a nip 500; a movable port 600; the movable projection 700.

As shown in fig. 1, the destructive torque experiment fixture comprises a housing 100, a disc-shaped threaded member 200, jaws 300 and an end cover 400, wherein the housing 100 is located at the front part of the disc-shaped threaded member 200, the end cover 400 is located at the rear part of the disc-shaped threaded member 200, the housing 100 is provided with a clamping opening 500 and a moving opening 600 which are communicated, the three jaws 300 are movably located at the moving opening 600, and a test nut is located at the clamping opening 500, so that the whole test nut can be clamped at the clamping opening 500 through the movement of the jaws 300, and because the whole jaws 300 are movable, namely the positions are controllable, the fixture can be suitable for testing nuts of different sizes through the movement of the jaws 300, and the universality is better.

As shown in fig. 2, the disc-shaped threaded member 200 has a thread engaging end 201, the thread engaging end 201 engages with the jaw 300 and drives the jaw 300 to move inward to clamp the test nut at the clamping opening 500, the rear portion of the disc-shaped threaded member 200 has a sleeve portion 202, the sleeve portion 202 is connected with an external wrench, the disc-shaped threaded member 200 is used as a main transmission mechanism, after the sleeve portion 202 is connected with the external wrench, the torque is applied to the jaw 300 by the external wrench, so that the jaw 300 moves, in order to ensure the accuracy of the moving position of the jaw 300, the two sides of the moving opening 600 have moving protrusions 700, the jaw 300 is provided with a slot 301 matched with the moving protrusion 700, so that the jaw 300 can only move within the limited position of the moving protrusion 700 and the slot 301, thereby accurately testing the nut, the jaw 300 has a tooth-shaped portion 302 matched with the thread engaging end 201, can utilize disk-type screw 200 to drive whole jack catch 300 motion like this to can constantly press from both sides tightly in the loading process, have protruding 303 on the jack catch 300, protruding 303 blocks the test nut, and the test prevents to test nut downstream when the loading like this, guarantees the position of test nut.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the utility model as defined by the accompanying claims.

Claims

1. The utility model provides a destroy moment of torsion experiment tool, its characterized in that, including casing, dish type screw thread spare, jack catch and end cover, the casing is located the front portion of dish type screw thread spare, and the end cover is located the rear portion of dish type screw thread spare, the casing on have the clamp mouth and the movable opening of UNICOM, three jack catch mobilizable be located movable opening department, test nut is located the clamp mouth department, dish type screw thread spare screw thread mating end, screw thread mating end and jack catch portion cooperation and drive the jack catch after the inward movement tight test nut of clamp mouth department.

2. The tool for testing the breaking torque as claimed in claim 1, wherein the rear part of the disc-shaped threaded member is provided with a sleeve portion, and the sleeve portion is connected with an external wrench.

3. The tool for testing the destructive torque as claimed in claim 2, wherein the movable opening has movable protrusions on both sides thereof, the jaw has a slot for engaging with the movable protrusion, and the jaw has a tooth-shaped portion for engaging with the thread.

4. A breaking torque test fixture according to claim 3, characterized in that the jaws have protrusions thereon, the protrusions catching the test nut.