Torque wrench fatigue test device

Abstract

The utility model discloses a torque wrench fatigue test device, which relates to the technical field of torque wrenches and comprises a connecting bottom plate, a mounting frame is fixedly mounted on the front side of the upper end of the outer wall of the connecting bottom plate, and a connecting disc is fixedly connected to the rear end of the outer wall of the mounting frame. A handle of the torque wrench can be fixed through the first mounting block and the second mounting block, the rotating shaft is driven to rotate through starting of the driving motor, the connecting rod, the middle rod and the arc-shaped rod are made to rotate around the axis of the connecting disc, and therefore the torque wrench is driven to rotate, the input end of the torque tester is rotated, and the torque tester is tested. The torque tester is used for providing rotation load for the connector and the output end of the torque wrench, and fatigue test is carried out on the torque wrench through repeated back-and-forth rotation of the torque wrench, so that the device can realize automatic repeated fatigue test on the torque wrench, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of torque wrench technology, and in particular to a fatigue testing device for torque wrenches. Background Technology

[0002] A torque wrench, also called a torque-adjustable wrench, is a type of wrench. Based on the power source, they can be divided into: electric torque wrenches, pneumatic torque wrenches, hydraulic torque wrenches, and manual torque wrenches. Manual torque wrenches can be further divided into: preset type, fixed value type, dial type, digital display type, slip type, bending type, and kilogram wrench. When the tightness of screws and bolts is critical, a torque wrench allows the operator to apply a specific torque value.

[0003] During the production and processing of torque wrenches, fatigue testing is required to ensure their accuracy and durability during use. This test checks whether the wrench can meet the usage conditions and requirements and achieve the designed torque within a set number of test cycles. Currently, the testing is usually conducted by manual rotation of the torque wrench by the testing personnel. However, fatigue testing of torque wrenches often requires a large number of repeated experiments to ensure the accuracy of the test results, so the manual testing method is relatively inefficient.

[0004] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a fatigue testing device for torque wrenches, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fatigue testing device for torque wrenches, comprising a connecting base plate, a mounting bracket fixedly installed on the front side of the upper end of the outer wall of the connecting base plate, a connecting plate fixedly connected to the rear end of the outer wall of the mounting bracket, an arc-shaped rod rotatably arranged on the rear side of the outer wall of the connecting plate, a connecting block fixedly connected to the lower end of the outer wall of the arc-shaped rod, a first mounting block fixedly installed on the right end of the outer wall of the connecting block, a second mounting block detachably connected to the right side of the outer wall of the first mounting block, a connecting frame fixedly installed on the rear side of the upper end of the outer wall of the connecting base plate, a torque tester fixedly connected to the upper end of the outer wall of the connecting frame, and a connector fixedly connected to the input end of the torque tester.

[0007] As a further technical solution of this utility model, a drive motor is fixedly installed in the middle of the rear side of the outer wall of the connecting plate, a fixed frame is fixedly connected to the rear side of the outer wall of the connecting plate, a rotating shaft is rotatably connected to the fixed frame, a connecting rod is fixedly installed at the rear end of the outer wall of the rotating shaft, an intermediate rod is fixedly connected to the rear side of the left end of the outer wall of the connecting rod, and the rear end of the outer wall of the arc-shaped rod is fixedly connected to the upper end of the outer wall of the intermediate rod.

[0008] As a further technical solution of this utility model, connecting plates are symmetrically fixedly installed on the front and rear sides of the outer walls of the first mounting block and the second mounting block. Threaded holes are opened on the connecting plates, and locking screws are threaded into the threaded holes.

[0009] As a further technical solution of this utility model, a touch screen is fixedly connected to the right side of the outer wall of the torque tester, and the touch screen is electrically connected to the torque tester.

[0010] As a further technical solution of this utility model, an arc-shaped scale is fixedly installed on the rear side of the outer wall of the connecting plate, and a pointer is fixedly connected to the middle of the arc-shaped rod.

[0011] This invention provides a fatigue testing device for torque wrenches, which has the following advantages compared with the prior art:

[0012] 1. This utility model uses mounting blocks one and two to fix the handle of the torque wrench. By starting the drive motor, the rotating shaft rotates, causing the connecting rod, intermediate rod, and arc rod to rotate around the axis of the connecting plate. This, in turn, causes the torque wrench to rotate, which in turn rotates the input end of the torque tester. The torque tester provides a rotational load to the output end of the connector and the torque wrench. Through the repeated back-and-forth rotation of the torque wrench, a fatigue test is performed on the torque wrench. This allows the device to perform automated and repeated fatigue tests on the torque wrench, improving its practicality.

[0013] 2. When using this utility model, an arc-shaped scale is fixedly installed on the rear side of the outer wall of the connecting plate, and a pointer is fixedly connected to the middle of the arc-shaped rod. Personnel can measure the rotation angle of the torque wrench by observing the scale value on the arc-shaped scale pointed to by the pointer, which facilitates observation and measurement and improves the ease of use of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is the right view of the present invention;

[0016] Figure 3 This is a rear view of the present invention;

[0017] Figure 4 This is an exploded view of mounting block one and mounting block two of this utility model;

[0018] Figure 5 This is a schematic diagram of the connector of this utility model.

[0019] In the diagram: 1. Torque wrench; 100. Connecting base plate; 110. Mounting bracket; 200. Connecting plate; 210. Drive motor; 220. Fixing bracket; 230. Rotating shaft; 240. Connecting rod; 250. Intermediate rod; 300. Arc rod; 310. Connecting block; 320. Mounting block one; 330. Mounting block two; 340. Connecting plate; 350. Threaded hole; 360. Locking screw; 400. Connecting bracket; 410. Torque tester; 420. Connector; 430. Touch screen; 500. Arc ruler; 600. Pointer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model provides a technical solution for a torque wrench fatigue testing device: It includes a connecting base plate 100, a mounting bracket 110 fixedly installed on the upper front side of the outer wall of the connecting base plate 100, a connecting plate 200 fixedly connected to the rear end of the outer wall of the mounting bracket 110, an arc-shaped rod 300 rotatably mounted on the rear side of the outer wall of the connecting plate 200, a connecting block 310 fixedly connected to the lower end of the outer wall of the arc-shaped rod 300, a first mounting block 320 fixedly installed on the right end of the outer wall of the connecting block 310, and a second mounting block 330 detachably connected to the right side of the outer wall of the first mounting block 320. The upper rear side of the outer wall of the connecting base plate 100 is fixedly... A connecting frame 400 is fixedly installed, and a torque tester 410 is fixedly connected to the upper end of the outer wall of the connecting frame 400. A connector 420 is fixedly connected to the input end of the torque tester 410. The output end of the torque wrench 1 is inserted into the connector 420. The handle position of the torque wrench 1 is fixed by the connection of the mounting block 1 320 and the mounting block 2 330. The rotation of the arc rod 300 drives the mounting block 1 320 and the mounting block 2 330 to rotate around the axis of the connecting plate 200, thereby driving the torque wrench 1 to rotate and rotating the input end of the torque tester 410.

[0022] A drive motor 210 is fixedly installed on the middle of the rear side of the outer wall of the connecting plate 200. A fixing frame 220 is fixedly connected to the rear side of the outer wall of the connecting plate 200. A rotating shaft 230 is rotatably connected to the fixing frame 220. A connecting rod 240 is fixedly installed on the rear end of the outer wall of the rotating shaft 230. A middle rod 250 is fixedly connected to the rear left end of the outer wall of the connecting rod 240. The rear end of the outer wall of the arc-shaped rod 300 is fixedly connected to the upper end of the outer wall of the middle rod 250. The starting of the drive motor 210 drives the rotating shaft 230 to rotate, thereby driving the connecting rod 240 and the middle rod 250 to rotate, so that the arc-shaped rod 300 rotates around the axis of the connecting plate 200. Connecting plates 340 are symmetrically fixed to the front and rear sides of the outer walls of mounting block 1 320 and mounting block 2 330. Threaded holes 350 are formed on the connecting plates 340, and locking screws 360 are threaded into the threaded holes 350. The locking screws 360 and the threaded holes 350 on mounting block 1 320 and mounting block 2 330 are used to achieve a fixed connection between them. A touchscreen 430 is fixedly connected to the right side of the outer wall of the torque tester 410. The touchscreen 430 is electrically connected to the torque tester 410, and the torque parameters of the torque tester 410 can be set through the touchscreen 430.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, an arc-shaped scale 500 is fixedly installed on the rear side of the outer wall of the connecting plate 200, and a pointer 600 is fixedly connected to the middle of the arc-shaped rod 300. Personnel can measure the rotation angle of the torque wrench 1 by measuring the scale value of the pointer 600 on the arc-shaped scale 500.

[0024] The working principle of this utility model is as follows: In use, the operator first inserts the output end of the torque wrench 1 into the connector 420. Then, through the threaded connection of the locking screw 360 and the threaded holes 350 on the mounting blocks 320 and 330, the mounting blocks 320 and 330 are fixedly connected, thus fixing the handle of the torque wrench 1 in the mounting blocks 320 and 330. Next, the starting of the drive motor 210 drives the rotating shaft 230 to rotate, thereby driving the connecting rod 240 and the intermediate rod 250 to rotate, causing the arc-shaped rod 300 to rotate around the axis of the connecting plate 200. The rotation of the arc-shaped rod 300... Mounting blocks 1 (320) and 2 (330) rotate around the axis of the connecting plate 200, thereby driving the torque wrench 1 to rotate and rotating the input end of the torque tester 410. The torque tester 410 is used to provide rotational load to the output end of the connector 420 and the torque wrench 1. Through the repeated back-and-forth rotation of the torque wrench 1, a fatigue test is performed on the torque wrench 1. At the same time, an arc-shaped scale 500 is fixedly installed on the rear side of the outer wall of the connecting plate 200, and a pointer 600 is fixedly connected to the middle of the arc-shaped rod 300. Personnel can measure the rotation angle of the torque wrench 1 by using the scale value on the arc-shaped scale 500 pointed to by the pointer 600.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A fatigue testing device for torque wrenches, comprising a connecting base plate (100), characterized in that: A mounting bracket (110) is fixedly installed on the front side of the upper end of the outer wall of the connecting base plate (100). A connecting plate (200) is fixedly connected to the rear end of the outer wall of the mounting bracket (110). An arc-shaped rod (300) is rotatably arranged on the rear side of the outer wall of the connecting plate (200). A connecting block (310) is fixedly connected to the lower end of the outer wall of the arc-shaped rod (300). A first mounting block (320) is fixedly installed on the right end of the outer wall of the connecting block (310). A second mounting block (330) is detachably connected to the right side of the outer wall of the first mounting block (320). A connecting frame (400) is fixedly installed on the rear side of the upper end of the outer wall of the connecting base plate (100). A torque tester (410) is fixedly connected to the upper end of the outer wall of the connecting frame (400). A connector (420) is fixedly connected to the input end of the torque tester (410).

2. The fatigue testing device for torque wrenches according to claim 1, characterized in that, A drive motor (210) is fixedly installed on the middle of the rear side of the outer wall of the connecting plate (200). A fixing frame (220) is fixedly connected to the rear side of the outer wall of the connecting plate (200). A rotating shaft (230) is rotatably connected to the fixing frame (220). A connecting rod (240) is fixedly installed on the rear end of the outer wall of the rotating shaft (230). An intermediate rod (250) is fixedly connected to the rear side of the left end of the outer wall of the connecting rod (240). The rear end of the outer wall of the arc-shaped rod (300) is fixedly connected to the upper end of the outer wall of the intermediate rod (250).

3. The fatigue testing device for torque wrenches according to claim 1, characterized in that, The mounting block 1 (320) and the mounting block 2 (330) are symmetrically fixed with connecting plates (340) on the front and rear sides of their outer walls. The connecting plates (340) are provided with threaded holes (350), and locking screws (360) are threaded into the threaded holes (350).

4. The fatigue testing device for torque wrenches according to claim 1, characterized in that, A touch screen (430) is fixedly connected to the right side of the outer wall of the torque tester (410), and the touch screen (430) is electrically connected to the torque tester (410).

5. The fatigue testing device for torque wrenches according to claim 1, characterized in that, An arc-shaped scale (500) is fixedly installed on the rear side of the outer wall of the connecting plate (200), and a pointer (600) is fixedly connected to the middle of the arc-shaped rod (300).

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