Torque detection tool for friction plate

Abstract

The utility model belongs to the technical field of detection tools, and particularly relates to a torque detection tool of a friction plate, which comprises a rotating die shank, a fixed die shank, a pressure plate, a fixed flange plate, a movable flange plate and a plane thrust bearing, the rotating die shank is fixed on the left side surface of the pressure plate, the fixed die shank is fixed on the right side surface of the fixed flange plate, and the movable flange plate is fixed on the plane thrust bearing. The movable flange plate is arranged on the left side of the fixed flange plate and fixedly connected with the fixed flange plate, a through hole allowing the rotating die handle to penetrate through is formed in the center of the movable flange plate, and the plane thrust bearing is located between the movable flange plate and the pressing plate and arranged outside the rotating die handle in a sleeving mode. The device is simple in structure, low in maintenance cost, capable of carrying out torque detection on friction plates of various specifications, wide in application range and high in practicability; and the device is convenient to assemble, high in repeatable test success rate and good in test stability, greatly shortens the detection period, and solves the problem that the torque change cannot be quickly detected after the friction plate is added to the engine connecting part.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection tooling, and in particular relates to a torque detection tooling for a friction plate. Background Art

[0002] The torsion testing machine is the most commonly used torque and torsion testing device, and is often used to detect the torque and torsional force when the material is twisted off. At present, after adding friction plates (the surface of the friction plates is coated with diamonds, with a high friction coefficient and large torque) to the engine connection parts, at least 400 hours of reliability testing is required. This time is long and the data is not intuitive enough, and it is impossible to quickly detect torque changes. The main reason is that during the test, the poor matching between the pressing plate and the dovetail groove causes wrinkles in the tape, resulting in relative position deviation when the probe contacts the chip pin, resulting in poor test stability. Although there are some test fixtures, one type of fixture can only test one specification of product at a time, so it is necessary to design fixtures of multiple specifications, which is costly.

[0003] Therefore, a torque detection tool for friction plates is urgently needed to solve the above problems. Utility Model Content

[0004] In response to the above-mentioned defects in the prior art, the utility model provides a torque detection tooling for a friction plate, comprising a rotating die handle, a fixed die handle, a pressure plate, a fixed flange, a movable flange and a plane thrust bearing. The rotating die handle and the fixed die handle are both cylindrical. The rotating die handle is fixed to the left side of the pressure plate by two first locating pins and two first M6 bolts. The fixed die handle is fixed to the right side of the fixed flange by two second locating pins and two second M6 bolts. The movable flange is arranged on the left side of the fixed flange. The movable flange is fixedly connected to the fixed flange by two third locating pins and six M10 bolts. A through hole is provided in the center of the movable flange for the rotating die handle to pass through. The plane thrust bearing is located between the movable flange and the pressure plate, and the plane thrust bearing is sleeved on the outside of the rotating die handle, but the plane thrust bearing and the rotating die handle are not connected to each other.

[0005] In addition, the torsion testing machine used in the test of this tool includes a testing machine body, a test bench and a movable part. The testing machine body is fixed on the left side of the test bench, and a first three-jaw chuck is provided on the right side of the testing machine body. The movable part is slidably connected to the test bench on the right side of the testing machine body, and a second three-jaw chuck is provided on the left side of the movable part, and the first three-jaw chuck and the second three-jaw chuck are opposite to each other on the left and right.

[0006] Optionally, positioning grooves are provided on both the rotating mold handle and the fixed mold handle.

[0007] Specifically, the positioning groove facilitates the clamping and fixing of each three-jaw chuck.

[0008] Optionally, the length of the rotating mold handle is greater than the thickness of the movable flange.

[0009] Optionally, circular limiting grooves are respectively provided on one side of the movable flange and the pressure plate close to the planar thrust bearing.

[0010] Specifically, the limiting groove is adapted to the outer shape of the end of the planar thrust bearing. After the movable flange and the pressure plate clamp the planar thrust bearing, the limiting groove can be used to position the planar thrust bearing to reduce measurement deviation.

[0011] Optionally, the diameters of the fixed flange and the movable flange are the same, the diameter of the pressure plate is larger than the diameter of the friction plate, and the diameter of the pressure plate is smaller than the diameter of the movable flange.

[0012] The present invention also includes other components that enable the torque detection tooling of a friction plate to function properly, all of which are conventional technical means in the art. In addition, devices or components not limited in the present invention all adopt conventional technical means in the art, such as planar thrust bearings, etc.

[0013] The working principle of the present invention is to obtain the torque detection data of the friction plate by adopting a comparative test, that is, firstly perform a torque detection on the tooling without the friction plate installed, and the tooling assembly method is as follows: fix the rotating die handle to the pressure plate by the first locating pin and the first M6 bolt, fix the fixed die handle to the fixed flange by the second locating pin and the second M6 bolt, sleeve the plane thrust bearing on the outside of the rotating die handle, the function of the plane thrust bearing is to reduce the influence of the friction between the movable flange and the pressure plate on the torque detection, pass the third locating pin through the movable flange and the fixed flange to provide positioning and guidance for them, then fix the two flanges together with M10 bolts and tighten them with a torque wrench, and the torque of each bolt is set to 20N·M; after the tooling is assembled, clamp the tooling to the torsion testing machine, so that the first locating pin is tightened. A three-jaw chuck clamps the rotating die handle, while the second three-jaw chuck clamps the fixed die handle; after clamping, the test begins: the second three-jaw chuck is fixed, and the testing machine body continuously applies torsional force to the first three-jaw chuck, and then applies torsional force to the pressure plate by rotating the die handle until rotation occurs between the pressure plate and the fixed flange, and the torque detection data A at this time is recorded; then the tooling is removed, the two flanges are loosened, and the friction plate to be tested is placed between the pressure plate and the fixed flange. After the tooling is assembled, the tooling is clamped between the two three-jaw chucks, and the test begins. The testing machine body continuously applies torsional force to the first three-jaw chuck until rotation occurs between the pressure plate and the fixed flange, and the torque detection data B at this time is recorded. The torque detection data of the friction plate is obtained by comparing and subtracting the two data.

[0014] The beneficial effects of the utility model are simple structure, low maintenance cost, ability to perform torque detection on friction plates of various specifications, wide range of applicability and high practicality; easy assembly, high success rate of repeatable tests, good test stability, greatly shortening the detection cycle, and effectively solving the problem of being unable to quickly detect torque changes after adding friction plates to the engine connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is an exploded view of the torque detection tooling of the present invention.

[0018] Figure 3 This is a schematic diagram of the torque detection tooling of the present invention in actual use.

[0019] In the figure: 1. Rotating mold handle, 2. Fixed mold handle, 3. Pressure plate, 4. Fixed flange, 5. Movable flange, 6. Plane thrust bearing, 7. First locating pin, 8. First M6 bolt, 9. Second locating pin, 10. Second M6 bolt, 11. Third locating pin, 12. M10 bolt, 13. Friction plate, 14. Testing machine body, 15. Test bench, 16. Movable part, 17. First three-jaw chuck, 18. Second three-jaw chuck, 19. Torque detection tooling, 20. Locating slot, 21. Limit slot. DETAILED DESCRIPTION

[0020] The present invention is described below in conjunction with the accompanying drawings and specific embodiments of the present invention. The description herein is intended only to explain the present invention and is not intended to limit the present invention. Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without creative work to all other embodiments obtained based on the embodiments of the present invention shall be included within the scope of protection of the present invention.

[0021] Example

[0022] like Figure 1-3As shown, an embodiment of the utility model provides a torque detection tooling for a friction plate, comprising a rotating mold handle 1, a fixed mold handle 2, a pressure plate 3, a fixed flange 4, a movable flange 5 and a plane thrust bearing 6. The rotating mold handle 1 and the fixed mold handle 2 are both cylindrical. The rotating mold handle 1 is fixed to the left side of the pressure plate 3 by two first locating pins 7 and two first M6 bolts 8. The fixed mold handle 2 is fixed to the right side of the fixed flange 4 by two second locating pins 9 and two second M6 bolts 10. The movable flange 5 is arranged on the left side of the fixed flange 4. The movable flange 5 is fixedly connected to the fixed flange 4 by two third locating pins 11 and six M10 bolts 12. A through hole is opened in the center of the movable flange 5 for the rotating mold handle 1 to pass through. The plane thrust bearing 6 is located between the movable flange 5 and the pressure plate 3, and the plane thrust bearing 6 is sleeved on the outside of the rotating mold handle 1, but the plane thrust bearing 6 and the rotating mold handle 1 are not connected to each other.

[0023] The torsion testing machine used in the test of this tool includes a testing machine body 14, a test bench 15 and a movable part 16. The testing machine body 14 is fixed to the left side of the test bench 15. A first three-jaw chuck 17 is provided on the right side of the testing machine body 14. The movable part 16 is slidably connected to the test bench 15 on the right side of the testing machine body 14. A second three-jaw chuck 18 is provided on the left side of the movable part 16, and the first three-jaw chuck 17 and the second three-jaw chuck 18 are opposite to each other on the left and right.

[0024] In addition, both the rotating die handle 1 and the fixed die handle 2 are provided with positioning grooves 20, which facilitate the clamping and fixing of each three-jaw chuck. The length of the rotating die handle 1 is greater than the thickness of the movable flange 5. The movable flange 5 and the pressure plate 3 are respectively provided with circular limiting grooves 21 on the side close to the plane thrust bearing 6. The limiting grooves 21 are adapted to the shape of the end of the plane thrust bearing 6. After the movable flange 5 and the pressure plate 3 clamp the plane thrust bearing 6, the limiting grooves 21 can be used to position the plane thrust bearing 6 to reduce measurement deviation. The diameter of the fixed flange 4 is the same as that of the movable flange 5, the diameter of the pressure plate 3 is greater than the diameter of the friction plate 13, and the diameter of the pressure plate 3 is smaller than the diameter of the movable flange 5.

[0025] The working principle of the present invention is to obtain the torque detection data of the friction plate 13 by adopting a comparative test, that is, first perform a torque test on the tooling without the friction plate 13, and the tooling assembly method is as follows: fix the rotating die handle 1 to the pressure plate 3 by the first locating pin 7 and the first M6 bolt 8, fix the fixed die handle 2 to the fixed flange 4 by the second locating pin 9 and the second M6 bolt 10, and sleeve the plane thrust bearing 6 on the outside of the rotating die handle 1. The function of the plane thrust bearing 6 is to reduce the influence of the friction between the movable flange 5 and the pressure plate 3 on the torque detection. Pass the third locating pin 11 through the movable flange 5 and the fixed flange 4 to provide positioning and guidance for them, and then use the M10 bolt 12 to fix the two flanges together and tighten them with a torque wrench. The torque of each bolt is set to 20N·M; after the tooling is assembled, clamp the tooling to the torsion testing machine so that the first and third The jaw chuck 17 clamps the rotating die handle 1, and the second three-jaw chuck 18 clamps the fixed die handle 2; after clamping, the test begins: the second three-jaw chuck 18 is fixed, and the first three-jaw chuck 17 is continuously applied with a torsional force by the testing machine body 14, and then the pressure plate 3 is applied with a torsional force by the rotating die handle 1, until rotation occurs between the pressure plate 3 and the fixed flange 4, and the torque detection data A at this time is recorded; then the tooling is removed, the two flanges are loosened, and the friction plate 13 to be tested is placed between the pressure plate 3 and the fixed flange 4. After the tooling is assembled, the tooling is clamped between the two three-jaw chucks, and the test begins. The first three-jaw chuck 17 is continuously applied with a torsional force by the testing machine body 14 until rotation occurs between the pressure plate 3 and the fixed flange 4, and the torque detection data B at this time is recorded, and the torque detection data of the friction plate 13 is obtained by comparing and subtracting the two data.

[0026] While the embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A torque detection tool for a friction plate, comprising a rotating die handle, a fixed die handle, a pressure plate, a fixed flange, a movable flange, and a planar thrust bearing, characterized in that: Both the rotating die handle and the fixed die handle are cylindrical. The rotating die handle is fixed to the left side of the pressure plate by several first locating pins and first M6 bolts. The fixed die handle is fixed to the right side of the fixed flange by several second locating pins and second M6 bolts. The movable flange is arranged on the left side of the fixed flange. The movable flange is fixedly connected to the fixed flange by several third locating pins and M10 bolts. A through hole for the rotating die handle to pass through is opened in the center of the movable flange. The plane thrust bearing is located between the movable flange and the pressure plate, and the plane thrust bearing is sleeved on the outside of the rotating die handle.

2. The torque detection tool for the friction plate according to claim 1, characterized in that: Positioning grooves are provided on both the rotating mold handle and the fixed mold handle.

3. The torque detection tool for the friction plate according to claim 2, characterized in that: The length of the rotating mold handle is greater than the thickness of the movable flange.

4. The torque detection tool for the friction plate according to claim 3, characterized in that: Circular limiting grooves are respectively provided on one side of the movable flange and the pressure plate close to the plane thrust bearing.

5. The torque detection tool for the friction plate according to claim 4, characterized in that: The diameters of the fixed flange and the movable flange are the same, the diameter of the pressure plate is larger than the diameter of the friction plate, and the diameter of the pressure plate is smaller than the diameter of the movable flange.

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