Torque test bench and torque measuring method thereof

Abstract

The invention provides a torque test bench and a torque measuring method thereof. Relates to the technical field of torque, in particular to a torque test bench and a torque measuring method thereof.The torque test bench comprises a fixed box fixedly installed at the bottom of a torque tester, three rotating rods are rotationally installed in the fixed box, the two ends of each rotating rod extend out of the fixed box, and the three rotating rods are fixedly sleeved with worm wheels respectively; and threads on the two worm wheels located on the two sides are opposite, a rotating motor is fixedly installed on the inner wall of one side of the fixing box, a first worm is fixedly installed on an output shaft of the rotating motor, and the first worm is meshed with the corresponding worm wheel. The torque test bench and the torque measuring method thereof provided by the invention have the advantages of being convenient to operate, protecting the torque tester and prolonging the service life.

Description

Technical Field

[0001] The invention relates to the technical field of torque safety, and in particular to a torque test bench and a torque measurement method thereof. Background Art

[0002] Torque is the moment that causes an object to rotate. The torque test bench is a workbench for testing the torque of devices. It is generally composed of a torque tester fixedly installed on the workbench. The torque of the device is tested by the torque tester on the workbench. In some automated production lines that require screw assembly, there is a torque requirement for each tightening screw. People generally use a torque test bench to perform torque tests on the corresponding electric screwdriver or pneumatic screwdriver. Only when the torque (CPK process capability index) value meets the requirements can stable production of the product be guaranteed.

[0003] However, the torque tester on the existing torque test bench is not provided with a protective mechanism, so when people are carrying the torque test bench, the torque tester often collides with other objects and is damaged, which affects the service life.

[0004] Therefore, it is necessary to provide a torque test bench and a torque measurement method thereof to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the invention is to provide a torque test bench and a torque measuring method thereof which are easy to operate, can protect a torque tester and can increase the service life.

[0006] In order to solve the above technical problems, the torque test bench and the torque measurement method thereof provided by the present invention include a fixed box fixedly installed at the bottom of the torque tester, three rotating rods are rotatably installed in the fixed box, and both ends of the three rotating rods extend outside the fixed box, and worm wheels are fixedly sleeved on the three rotating rods, and the threads on the two worm wheels on both sides are opposite, a rotating motor is fixedly installed on the inner wall of one side of the fixed box, a first worm is fixedly installed on the output shaft of the rotating motor, and the first worm is meshed with a corresponding one of the worm wheels, a second worm is fixedly installed at one end of the first worm away from the rotating motor, and the other end of the second worm is rotatably connected to the fixed box, the thread of the second worm is opposite to that of the first worm, and the second worm is meshed with the other two worm wheels, vertical rotation protection plates are fixedly installed at both ends of the rotating rod located in the middle position, and U-shaped rotation protection plates are fixedly installed at both ends of the two rotating rods located on both sides.

[0007] Preferably, a rotation groove is opened on an inner wall of one side of the fixed box, one end of the second worm extends into the rotation groove and is fixedly sleeved with a bearing, and the outer ring of the bearing is fixedly connected to the inner wall of the rotation groove.

[0008] Preferably, a fixed plate is fixedly installed in the fixed box, three lubricating oil tanks are fixedly installed on the top of the fixed plate, cross bars are rotatably installed in the three lubricating oil tanks, lubricating oil application rollers are fixedly sleeved on the three cross bars, and the three lubricating oil application rollers are in close contact with the first worm and the second worm respectively.

[0009] Preferably, frame plates are respectively provided on the tops of the three lubricating oil tanks, frame rubber plates are respectively fixedly installed in the three frame plates, two pull ropes are respectively fixedly installed on the tops of the three frame plates, and the six pull ropes are respectively fixedly connected to the three rotating rods, cross plates are respectively fixedly installed on the outer walls on both sides of the two lubricating oil tanks, sliding rods are respectively slidably installed on the six cross plates, and the top ends of the six sliding rods are respectively fixedly connected to the corresponding frame plates, compression springs are respectively movably sleeved on the two sliding rods, and the top ends of the six compression springs are respectively fixedly connected to the corresponding frame plates, and the bottom ends of the six compression springs are respectively fixedly connected to the corresponding cross plates.

[0010] Preferably, the surfaces of the compression springs are all tin-plated.

[0011] Preferably, the six transverse plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the six through holes, and the six sliding rods respectively penetrate the six linear bearings and are respectively slidably connected to the inner walls of the six linear bearings.

[0012] Preferably, the draw cord is a polyurethane cord.

[0013] The present invention also provides a torque measurement method for a torque test bench, comprising the following steps: S: Start the rotating motor, and rotate the first worm and the second worm by the rotating motor, thereby driving the rotating rod to rotate, so that the two U-shaped rotating protection plates and the vertical rotating protection plates are changed from the vertical upward state to the vertical downward state, and the torque tester is fully revealed; S: Turn off the rotating motor, so that both the U-shaped rotating protective plate and the vertical rotating protective plate remain in the current state to support the torque tester; S: Use a torque tester to measure the torque of the device.

[0014] Compared with the related art, the torque test bench and torque measurement method provided by the present invention have the following beneficial effects: The present invention provides a torque test bench and a torque measurement method thereof. The frame-shaped rubber plate is closely contacted with the lubricating oil coating roller by compressing the spring to block the opening of the lubricating oil tank, so that the lubricating oil is always in a sealed environment when people do not adjust the U-shaped rotating protective plate and the vertical rotating protective plate, thereby reducing the evaporation of the lubricating oil. The two U-shaped rotating protective plates and the vertical rotating protective plate are both in a vertically upward state to form a complete protective cover to protect the torque tester, thereby preventing foreign objects from colliding with the torque tester when people carry the device, thereby affecting the service life. By rotating the motor to rotate The frame-shaped rubber plate is separated from the lubricating oil coating roller, and the first worm and the second worm rotate to drive the lubricating oil coating roller to rotate through friction, so that the lubricating oil in the lubricating oil tank is continuously transported to the first worm and the second worm and the worm wheel, thereby reducing the wear of the first worm, the second worm and the worm wheel and increasing their service life. Finally, the rotation of the rotating rod drives the two U-shaped rotating guard plates and the vertical rotating guard plates to change from a vertical upward state to a vertical downward state. The torque tester is fully displayed and the torque tester is supported at the same time, so people can use the device to perform torque testing on the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main structure of the torque test bench provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown; Figure 3 for Figure 1 The assembly drawing of the lubricating oil tank and frame plate shown; Figure 4 for Figure 1 A top view of the fixed box shown; Figure 5 It is an expanded view of the present invention when working; Figure 6 Figure 1 This is a front view of the torque test bench provided by the present invention.

[0016] Numbers in the figure: 1. fixed box; 2. torque tester; 3. rotating rod; 4. worm gear; 5. first worm; 6. second worm; 7. U-shaped rotating protective plate; 8. vertical rotating protective plate; 9. rotating motor; 11. lubricating oil tank; 12. cross plate; 13. compression spring; 14. frame plate; 15. frame rubber plate; 16. pull rope; 17. cross bar; 18. lubricating oil application roller; 20. fixed plate; 21. sliding rod. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Please refer to Figure 1-Figure 6In an embodiment of the present invention, a torque test bench includes a fixed box 1 fixedly mounted at the bottom of a torque tester 2, three rotating rods 3 are rotatably mounted in the fixed box 1, and both ends of the three rotating rods 3 extend outside the fixed box 1, and worm wheels 4 are fixedly sleeved on the three rotating rods 3, and the threads on the two worm wheels 4 on both sides are opposite, a rotating motor 9 is fixedly mounted on an inner wall of one side of the fixed box 1, a first worm 5 is fixedly mounted on the output shaft of the rotating motor 9, and the first worm 5 is meshed with a corresponding one of the worm wheels 4, a second worm 6 is fixedly mounted on one end of the first worm 5 away from the rotating motor 9, and the other end of the second worm 6 is rotatably connected to the fixed box 1, in order to make the second worm 6 rotate more stably in the fixed box 1, a rotating groove is opened on the inner wall of one side of the fixed box 1, one end of the second worm 6 extends into the rotating groove and is fixedly sleeved with a bearing, and the outer ring of the bearing is in contact with the The inner wall of the rotating groove is fixedly connected, and the second worm 6 is made to rotate more stably on the fixed box 1 through the bearing. The thread of the second worm 6 is opposite to that of the first worm 5, and the second worm 6 is meshed with the other two worm wheels 4. The two ends of the rotating rod 3 located in the middle position are respectively fixedly installed with vertical rotation protection plates 8, and the two ends of the two rotating rods 3 located on both sides are fixedly installed with U-shaped rotation protection plates 7. The first worm 5 is driven to rotate by the rotating motor 9, and the first worm 5 drives the second worm 6 to rotate. The first worm 5 and the second worm 6 drive the worm wheel 4 to rotate. The rotation of the worm wheel 4 drives the rotating rod 3 to rotate, driving the two U-shaped rotation protection plates 7 and the vertical rotation protection plates 8 to rotate 180°, so that the two U-shaped rotation protection plates 7 and the vertical rotation protection plates 8 are changed from a vertical upward state to a vertical downward state. The torque tester 2 is fully displayed and the torque tester 2 is supported at the same time, and people can use this device to perform torque testing on the device.

[0019] In order to reduce the wear of the first worm 5, the second worm 6 and the worm wheel 4 and improve their service life, a fixed plate 20 is fixedly installed in the fixed box 1, and three lubricating oil tanks 11 are fixedly installed on the top of the fixed plate 20. Cross bars 17 are rotatably installed in the three lubricating oil tanks 11 respectively, and lubricating oil application rollers 18 are fixedly sleeved on the three cross bars 17 respectively, and the three lubricating oil application rollers 18 are in close contact with the first worm 5 and the second worm 6 respectively. The rotation of the first worm 5 and the second worm 6 drives the lubricating oil application rollers 18 to rotate through friction, so that the lubricating oil in the lubricating oil tank 11 is continuously transported to the first worm 5 and the second worm 6, and finally applied to the worm wheel 4.

[0020] In order to ensure that the lubricating oil is always in a sealed environment when people do not adjust the U-shaped rotating protective plate 7 and the vertical rotating protective plate 8, and to reduce the evaporation of the lubricating oil, a frame plate 14 is respectively provided on the top of the three lubricating oil tanks 11, and a frame rubber plate 15 is respectively fixedly installed in the three frame plates 14, and two pull ropes 16 are respectively fixedly installed on the top of the three frame plates 14. In order to increase the service life of the pull rope 16, the pull rope 16 is a polyurethane rope, and the six pull ropes 16 are respectively fixedly connected to the three rotating rods 3, and cross plates 12 are respectively fixedly installed on the outer walls of both sides of the two lubricating oil tanks 11, and sliding rods 21 are respectively slidably installed on the six cross plates 12. In order to reduce the friction between the sliding rod 21 and the cross plate 12, thereby reducing the wear of the sliding rod 21 and increasing the service life of the sliding rod 21, through holes are respectively opened on the six cross plates 12, and linear bearings are respectively fixedly installed in the six through holes. The sliding rod 21 passes through the six linear bearings respectively and is slidably connected to the inner walls of the six linear bearings respectively, and the top ends of the six sliding rods 21 are fixedly connected to the corresponding frame-shaped plates 14 respectively, and compression springs 13 are movably sleeved on the two sliding rods 21. In order to improve the service life of the compression springs 13, the surfaces of the compression springs 13 are tin-plated, and the top ends of the six compression springs 13 are fixedly connected to the corresponding frame-shaped plates 14 respectively, and the bottom ends of the six compression springs 13 are fixedly connected to the corresponding cross plates 12 respectively. In the initial state, the lubricating oil tank 11 is filled with lubricating oil, and the compression spring 13 is in a stretched state. The compression spring 13 makes the frame-shaped rubber plate 15 closely contact with the lubricating oil application roller 18, and then cooperates with the lubricating oil application roller 18 to block the opening of the lubricating oil tank 11, so that the lubricating oil is always in a sealed environment when people do not adjust the U-shaped rotating protective plate 7 and the vertical rotating protective plate 8.

[0021] The working principle of the torque test bench provided by the present invention is as follows; in the initial state, the lubricating oil tank 11 is filled with lubricating oil, and the compression spring 13 is in a stretched state. The compression spring 13 makes the frame-shaped rubber plate 15 closely contact with the lubricating oil coating roller 18, and then cooperates with the lubricating oil coating roller 18 to block the opening of the lubricating oil tank 11, so that when people do not adjust the U-shaped rotating protective plate 7 and the vertical rotating protective plate 8, the lubricating oil is always in a sealed environment, reducing the evaporation of the lubricating oil. The two U-shaped rotating protective plates 7 and the vertical rotating protective plates 8 are both in a vertically upward state, forming a complete protective cover, which improves the protection of the torque tester 2 by the protective cover to prevent people from colliding with the torque tester 2 with external objects when carrying the device, causing damage to the torque tester 2 and affecting the service life. When people carry the device to a suitable position and need to use the device, start the rotating motor 9, the rotating motor 9 rotates to drive the first worm 5 to rotate, the first worm 5 rotates to drive the second worm 6 to rotate, the first worm 5 and The rotation of the second worm 6 drives the worm wheel 4 to rotate, and the rotation of the worm wheel 4 drives the rotating rod 3 to rotate. At the same time, the rotating rod 3 rotates to reel in the draw rope 16, so that the draw rope 16 moves upward, and the upward movement of the draw rope 16 drives the frame plate 14 and the frame rubber plate 15 to move upward, so that the frame rubber plate 15 is separated from the lubricating oil coating roller 18. At the same time, the rotation of the first worm 5 and the second worm 6 drives the lubricating oil coating roller 18 to rotate through friction, and the lubricating oil in the lubricating oil tank 11 is continuously transported to the first worm 5 and the second worm 6, and finally smeared on the worm wheel 4. The lubricating oil reduces the wear of the first worm 5, the second worm 6 and the worm wheel 4, and improves the service life. Finally, the rotating rod 3 rotates to drive the two U-shaped rotating guard plates 7 and the vertical rotating guard plates 8 to rotate 180°, so that the two U-shaped rotating guard plates 7 and the vertical rotating guard plates 8 are changed from a vertical upward state to a vertical downward state. The torque tester 2 is fully displayed and the torque tester 2 is supported at the same time, and people can use this device to perform torque testing on the device.

[0022] Compared with the related art, the torque test bench provided by the present invention has the following beneficial effects: The present invention provides a torque test bench, which uses a compression spring 13 to make the frame-shaped rubber plate 15 and the lubricating oil coating roller 18 closely contact to block the opening of the lubricating oil tank 11, so that when people do not adjust the U-shaped rotating protective plate 7 and the vertical rotating protective plate 8, the lubricating oil is always in a sealed environment, reducing the evaporation of the lubricating oil. The two U-shaped rotating protective plates 7 and the vertical rotating protective plate 8 are both in a vertically upward state to form a complete protective cover to protect the torque tester 2, preventing people from colliding with external objects when carrying the device, thereby affecting the service life. The frame-shaped rubber plate 1 is rotated by rotating the motor 9 to rotate. 5 is separated from the lubricating oil coating roller 18, and the first worm 5 and the second worm 6 rotate to drive the lubricating oil coating roller 18 to rotate through friction, so that the lubricating oil in the lubricating oil tank 11 is continuously transported to the first worm 5, the second worm 6 and the worm wheel 4, thereby reducing the wear of the first worm 5, the second worm 6 and the worm wheel 4 and improving their service life. Finally, the rotating rod 3 rotates to drive the two U-shaped rotating guard plates 7 and the vertical rotating guard plate 8 to change from a vertical upward state to a vertical downward state, and the torque tester 2 is fully displayed and supported at the same time, so that people can use the device to perform torque testing on the device.

[0023] The present invention also provides a method for manufacturing a torque test bench, comprising the following steps: S1: Start the rotating motor 9, and rotate the first worm 5 and the second worm 6 by the rotating motor 9, thereby driving the rotating rod 3 to rotate, so that the two U-shaped rotating protection plates 7 and the vertical rotating protection plate 8 are changed from the vertical upward state to the vertical downward state, and the torque tester 2 is fully revealed; S2: Turn off the rotating motor 9, so that the U-shaped rotating protection plate 7 and the vertical rotating protection plate 8 both maintain the current state to support the torque tester 2; S3: Use torque tester 2 to measure the torque of the device.

[0024] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A torque test bench, comprising a fixed box fixedly mounted at the bottom of a torque tester, characterized in that: Three rotating rods are rotatably installed in the fixed box, and both ends of the three rotating rods extend outside the fixed box, and worm gears are respectively fixedly mounted on the three rotating rods, and the threads on the two worm gears on both sides are opposite, and a rotating motor is fixedly installed on an inner wall of one side of the fixed box, and a first worm is fixedly installed on the output shaft of the rotating motor, and the first worm is meshed with a corresponding one of the worm gears, and a second worm is fixedly installed on an end of the first worm away from the rotating motor, and the other end of the second worm is rotatably connected to the fixed box, the thread of the second worm is opposite to that of the first worm, and the second worm is meshed with the other two worm gears, and vertical rotating protective plates are respectively fixedly installed at both ends of the rotating rod located in the middle position, and U-shaped rotating protective plates are fixedly installed at both ends of the two rotating rods located on both sides.

2. The torque test bench according to claim 1, characterized in that: A rotation groove is provided on an inner wall of one side of the fixed box, one end of the second worm extends into the rotation groove and is fixedly sleeved with a bearing, and the outer ring of the bearing is fixedly connected to the inner wall of the rotation groove.

3. The torque test bench according to claim 2, characterized in that: A fixed plate is fixedly installed in the fixed box, and three lubricating oil tanks are fixedly installed on the top of the fixed plate. Cross bars are rotatably installed in the three lubricating oil tanks respectively, and lubricating oil application rollers are fixedly sleeved on the three cross bars respectively, and the three lubricating oil application rollers are in close contact with the first worm and the second worm respectively.

4. The torque test bench according to claim 3, characterized in that: A frame plate is provided on the top of each of the three lubricating oil tanks, a frame rubber plate is fixedly installed in each of the three frame plates, two pull ropes are fixedly installed on the top of each of the three frame plates, and the six pull ropes are fixedly connected to the three rotating rods, cross plates are fixedly installed on the outer walls of both sides of the two lubricating oil tanks, sliding rods are slidably installed on the six cross plates, and the top ends of the six sliding rods are fixedly connected to the corresponding frame plates, compression springs are movably sleeved on the two sliding rods, and the top ends of the six compression springs are fixedly connected to the corresponding frame plates, and the bottom ends of the six compression springs are fixedly connected to the corresponding cross plates.

5. The torque test bench according to claim 4, characterized in that: The surfaces of the compression springs are all tin-plated.

6. The torque test bench according to claim 5, characterized in that: The six transverse plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the six through holes. The six sliding rods respectively penetrate the six linear bearings and are respectively slidably connected to the inner walls of the six linear bearings.

7. The torque test bench according to claim 6, characterized in that: The draw cord is a polyurethane cord.

8. A torque measurement method for a torque test bench, characterized in that: The torque test bench according to any one of claims 1 to 7 is used, comprising the following steps: S1: Start the rotating motor, and rotate the first worm and the second worm by the rotating motor, thereby driving the rotating rod to rotate, so that the two U-shaped rotating protection plates and the vertical rotating protection plates are changed from the vertical upward state to the vertical downward state, and the torque tester is fully revealed; S2: Turn off the rotating motor, so that the U-shaped rotating protective plate and the vertical rotating protective plate both maintain the current state to support the torque tester; S3: Use a torque tester to measure the torque of the device.

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