Jig and using method thereof

Abstract

The jig comprises a first clamp, a first clamping component of the first clamp is connected and positioned in a first space, and the first clamping component is provided with a first clamping part for clamping the upper end of a rotating shaft; the bottom of the first clamp is provided with a connecting piece, and the side face of the connecting piece is provided with at least one connecting part. A first elastic sheet is clamped and connected between the first clamp and the connecting piece; a second clamp is arranged at the bottom of the connecting piece, a second clamping component of the second clamp is connected and positioned in a second space, and the second clamping component is provided with a second clamping part for clamping the lower end of the rotating shaft; a second elastic sheet is clamped and connected between the connecting piece and the second clamp; therefore, the first clamping assembly and the second clamping assembly can be detached and replaced respectively, and the jig is installed on a running-in machine or a torsion testing machine so as to carry out running-in and torsion testing respectively.

Description

Technical Field

[0001] The present invention relates to a fixture and a method of using the fixture, and in particular to a fixture that can be installed on a running-in machine, a torque testing machine, or other such machine to clamp a rotating shaft and match a corresponding workpiece and allow the rotating shaft to rotate relative to each other, so as to perform running-in procedures and torque testing, etc. Background Art

[0002] Most of the existing foldable electronic devices generate friction torque through at least one rotating shaft and its relative rotation, so as to achieve relative bending / folding action, and form the effect of free stagnation in the process. Such foldable electronic devices, such as laptop computers, foldable mobile phones and other products, are prone to damage at least one rotating shaft under long-term and frequent opening and closing bending / folding actions, causing the friction torque to weaken or fail. Therefore, in order to allow such products to achieve the expected service life, the designer will preset strict testing requirements and specifications for the torque value of at least one rotating shaft during design and development. When assembling at least one rotating shaft into a physical body, you can choose to use a running-in machine to assist in assembling the physical object to be tested, and directly perform the running-in test in the running-in machine, or you can choose to assemble the physical object to be tested by yourself, and then use the running-in machine, torque testing machine, life testing machine and other testing equipment to verify the design and development results.

[0003] The above-mentioned detection equipment can refer to the patent documents with patent publication numbers: TWM501560U, CN106768964B, CN212363949U, CN214373041U, TWM614422U, CN219624945U, etc., which all require at least one fixture to match at least one corresponding workpiece to respectively connect / clamp the above-mentioned object to be tested, such as the first fixture, the second fixture and the pivot member to be tested disclosed in TWM501560U, the mounting plate, the clamping block and the rotating shaft disclosed in CN106768964B, The fixed clamp, torsion clamp and rotating shaft disclosed in CN214373041U, the fixture and workpiece to be tested disclosed in TWM614422U, or the torsion part, fixed seat and rotating shaft disclosed in CN219624945U, all of these patent applications are in the form of forming relative motion and repeatedly implementing to detect whether the object to be tested meets the test requirements and specifications after long-term repeated relative motion loss. And the fixture and / or corresponding workpiece therein will also pass through more than one coupling, such as the first coupling and the second coupling disclosed in CN106768964B, the adjacent object of symbol 2 disclosed in CN212363949U, the flexible coupling disclosed in CN214373041U, and the correction rotation assembly disclosed in TWM614422U, wherein the coupling is an object that connects two rotating bodies (such as auxiliary workpieces, machine bases or motor modules) inside the above-mentioned detection equipment and is used to transmit torque, so as to absorb the small axis eccentricity error generated between the two different rotating bodies. When subjected to excessive torque, the coupling body will be disconnected inside the above-mentioned detection equipment to protect the two rotating bodies and other components from damage, so as to adapt to long-term repeated relative motion, thereby forming an automated operation effect. In addition, some designers have combined the above-mentioned torque testing machine with a running-in machine (such as CN106768964B) to reduce manual operation. However, as the object to be tested, the rotating shaft as a whole is composed of multiple parts, and each part will produce errors (manufacturing tolerances) in the manufacturing process. In particular, when the rotating shaft as a whole has more than one part that forms friction torque, the torque values ​​generated by different parts are more likely to have slight differences. When testing with the above-mentioned detection equipment, these different torque values ​​will make the test results inaccurate.

[0004] Therefore, in order to solve the above problems, the designers have successively developed fixtures with patent publication numbers CN214373041U and CN219624945U. As shown in the patent application for anti-rotational displacement and eccentricity absorbing fixture disclosed in CN219624945U, two rotating parts of a rotating shaft are respectively clamped in two clamps, a ring is provided between the rotating shaft and the clamp, one end of the rotating shaft is clamped and fixed to the fixed seat, and the torsion part can be twisted relative to each clamp, so that when it is installed on the torque testing machine for testing, the eccentric torsion of the rotating shaft can be absorbed through the connecting ring, and the non-positive force of the clamp can be absorbed through the ring, so as to prevent the rotating shaft from rotating due to force, thereby affecting the accuracy of the torque test value.

[0005] However, although the fixture of the above-mentioned CN219624945U patent application seems to be improved on the basis of CN214373041U to absorb the eccentric torsion of the rotating shaft, its upper and lower clamps are respectively fastened in an integrated slit-type manner. When operated by personnel, the clamps are easily damaged due to over-tightening or empty clamping, thereby reducing the service life of the clamps. Moreover, the number of parts of the conventional fixture in the patent application is large, and the clamps and the ring structures are all of special shapes, which not only troubles the manufacturing and processing but also easily increases the manufacturing cost; in addition, although the above-mentioned running-in machine and torque tester can be separated Or they can be integrated into the same inspection machine. However, in order to adapt to the mass production of rotating shafts, multiple running-in machines are usually used in combination with multiple torque testing machines (or multiple inspection machines), and the stations are set up according to the production process. Therefore, after the traditional jig of the patent application is assembled into the rotating shaft, the newly assembled rotating shaft is generally first run-in by the running-in machine. Of course, the rotating shaft can also be assembled by the running-in machine and run-in test is performed. After the torque value of the rotating shaft tends to be stable, it is continued to be switched to the torque testing machine for torque adjustment test. Through the inspection processes of different projects, the torque value of the rotating shaft is adjusted to meet the requirements and specifications. Therefore, improving the shortcomings of traditional jigs and how to assemble the rotating shaft and the jig together without disassembly in the aforementioned process to help shorten the process and improve production efficiency are the problems that the present invention aims to improve. Summary of the invention

[0006] One of the purposes of the present invention is to provide a jig to solve the problem that the upper and lower clamps in the traditional jig are easily damaged due to over-tightening or empty clamping, and when the running-in machine (first machine) and the torque testing machine (second machine) are used to perform the processes respectively, the rotating shaft needs to be removed and installed on different jigs, thereby reducing the production efficiency.

[0007] The second purpose of the present invention is to provide a method for using a jig to solve the problem that the upper and lower clamps in the traditional jig are easily damaged due to over-tightening or loose clamping, and when the running-in machine (first machine) and the torque testing machine (second machine) are used to perform the processes respectively, the rotating shaft needs to be removed and installed on different jigs, thereby reducing the production efficiency.

[0008] To achieve the purpose of the above invention, the fixture provided by the present invention includes a first clamp, a connecting member, a first elastic sheet, a second clamp and a second elastic sheet, wherein the first clamp has a first space and a first clamping component, the first clamping component is connected and positioned in the first space in a detachable manner, and the first clamping component has a first clamping portion to clamp the upper end of a rotating shaft; the connecting member is located at the bottom of the first clamp, and the side of the connecting member has at least one connecting portion; the first elastic sheet is clamped and connected between the first clamp and the connecting member; the second clamp is located at the bottom of the connecting member, the second clamp has a second space and a second clamping component, the second clamping component is connected and positioned in the second space in a detachable manner, and the second clamping component has a second clamping portion to clamp the lower end of the rotating shaft; the second elastic sheet is clamped and connected between the connecting member and the second clamp.

[0009] During implementation, the first clamp also includes a first rotating member and a first guide rail, the first clamping assembly includes a first upper clamping block and a second upper clamping block connected to each other, the first clamping portion includes a first positioning groove and a second positioning groove; the first upper clamping block has a first positioning groove, and the second upper clamping block has a second positioning groove; one end of the first rotating member is connected to the first upper clamping block to push the first upper clamping block; the first upper clamping block and the second upper clamping block are connected to the first guide rail, so that the first clamping assembly is connected and positioned in the first space in a removable manner.

[0010] During implementation, the first positioning groove and the second positioning groove are respectively semicircular grooves with a plurality of spaced concave teeth.

[0011] During implementation, the first clamp also includes a first push plate and at least one first elastic member, one side of the first push plate is connected to one end of the first rotating member, the other side of the first push plate presses against the first upper clamping block, and the first push plate is connected to the first guide rail, so that the first rotating member drives the first push plate to push the first upper clamping block.

[0012] During implementation, the first clamp includes two first elastic members, the first guide rail includes two first guide posts parallel to each other, the two first guide posts respectively pass through the first push plate, the first upper clamping block, the two first elastic members and the second upper clamping block to connect and position the first clamping assembly and enable the first upper clamping block and the second upper clamping block to move relative to each other.

[0013] During implementation, the connecting member is a flat plate, and includes two straight-plate-shaped connecting portions, and the two connecting portions extend outward in opposite directions from two opposite side surfaces of the connecting member.

[0014] During implementation, the second clamp also includes a second rotating member and a second guide rail, the second clamping assembly includes a first lower clamping block and a second lower clamping block connected to each other, the second clamping portion includes a first limiting groove and a second limiting groove; the first lower clamping block has a first limiting groove, and the second lower clamping block has a second limiting groove; one end of the second rotating member is connected to the first lower clamping block to push the first lower clamping block; the first lower clamping block and the second lower clamping block are connected to the second guide rail, so that the second clamping assembly is connected and positioned in the second space in a removable manner.

[0015] During implementation, the first limiting groove and the second limiting groove are respectively semicircular grooves having a plurality of spaced concave teeth.

[0016] During implementation, the second clamp also includes a second push plate and at least one second elastic member, one side of the second push plate is connected to one end of the second rotating member, the other side of the second push plate presses against the first lower clamping block, and the second push plate is connected to the second guide rail, so that the second rotating member drives the second push plate to push the first lower clamping block.

[0017] During implementation, the second clamp includes two second elastic members, the second guide rail includes two second guide posts parallel to each other, the two second guide posts respectively pass through the second push plate, the first lower clamp block, the two second elastic members and the second lower clamp block to connect and position the second clamping assembly and enable the first lower clamp block and the second lower clamp block to move relative to each other.

[0018] During implementation, the present invention also includes a third clamp, which includes a column and a third clamping component. The column has a third space, and the third clamping component is connected and positioned in the third space in a removable manner; the third space has a first notch, and the third clamping component has a pushing piece, and the pushing piece has a second notch corresponding to the first notch to clamp the bottom end of the rotating shaft.

[0019] During implementation, the third clamp further includes a fixing member, the top surface of which is detachably connected to the bottom surface of the column.

[0020] During implementation, the connecting member further includes a transition member, one end of which is fixedly connected to at least one connecting portion, and the other end of which has a clamping end.

[0021] The method for using the fixture provided by the present invention comprises the following steps: A. Provide an assembled rotating shaft, wherein the upper end of the rotating shaft has a first outer cam and a first inner cam that are relatively engaged, and the lower end of the rotating shaft has a second outer cam and a second inner cam that are relatively engaged; B. clamping the first outer cam with the first clamping part of the first clamping assembly, and clamping the second outer cam with the second clamping part of the second clamping assembly, so that the first clamp, the connecting member, the first elastic sheet, the second clamp, the second elastic sheet and the rotating shaft form a tested assembly; C. Connect and fix the bottom end of the rotating shaft of the tested component to a lower fixture of a first machine, and connect at least one upper fixture of the first machine to at least one connecting portion of the limit connecting member; then rotate at least one upper fixture to run-in the rotating shaft, and remove the tested component after the first process is completed; and D. Connect and fix the bottom end of the rotating shaft of the tested component to a machine fixture of a second machine, and then install an adapter, so that one end of the adapter is connected to the connecting part of the connecting member, and the other end of the adapter is connected to a clamping end of a rotating arm of the second machine to perform the second process.

[0022] During implementation, the connecting member is a flat plate, which includes two straight-plate-shaped connecting parts, which extend outward in opposite directions from two opposite side surfaces of the connecting member; the first machine has two upper clamps, which are respectively connected to the two connecting parts of the limiting connecting member.

[0023] During implementation, one end of the adapter is connected to one of the two connecting parts.

[0024] During implementation, the fixture also includes a third clamp, the third clamp has a column and a third clamping component, the column has a third space, the third clamping component is connected and positioned in the third space in a removable manner; the third space has a first notch, the third clamping component has a pushing piece, the pushing piece has a second notch corresponding to the first notch to clamp the bottom end of the rotating shaft, and the bottom end of the third clamp is connected and fixed to the lower clamp of the first machine or the machine clamp of the second machine.

[0025] The beneficial effects of the present invention are: The present invention provides a detachable clamping assembly on two fixtures, and provides at least one connecting portion structure on the side of a connecting member, so that the two clamping assemblies clamp the upper and lower ends of the rotating shaft respectively, and when the bottom end of the rotating shaft is clamped on a lower fixture of a first machine, a first process of the rotating shaft can be performed, and when the bottom end of the rotating shaft is clamped on a machine fixture of a second machine, a second process can be performed. The fixture is a modular object, and in the production process, an adapter can be added to be suitable for automatic machines of different processes, reducing the time for disassembling and assembling the fixture to improve production efficiency, and can effectively extend the service life of the rotating shaft and the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional appearance of a preferred embodiment of the fixture of the present invention; Figure 2 It is an exploded view of components of a preferred embodiment of the jig of the present invention; Figure 3 is an exploded view of the components of the first clamp of a preferred embodiment of the present invention; Figure 4A top view of a first clamp of a preferred embodiment of the present invention; Figure 5 is an exploded view of the third clamp of a preferred embodiment of the present invention; Figure 6 A schematic diagram of the use state of a preferred embodiment of the jig of the present invention during running-in; Figure 7 This is a schematic diagram of the use state of a preferred embodiment of the jig of the present invention before installation and running-in; Figure 8 This is a schematic diagram of another use state of a preferred embodiment of the jig of the present invention before installation and running-in; Fig. 9 This is a schematic diagram of the use state of the preferred embodiment of the jig of the present invention during installation and running-in; Fig.10 This is a schematic diagram of a preferred embodiment of the jig of the present invention installed on a torque testing machine for performing a torque test.

[0027] Description of Reference Numerals 1 fixture 2First clamp 21 First Plate 211 First Space 22 first rotating member 23 First rail 231 First Guide Pillar 24 first clamping assembly 25First upper clamp 251 first positioning groove 26 Second upper clamp 261 second positioning groove 27 First Push Plate 28 first elastic member 29 first clamping part 3 Connectors 30 Middle plate 31,31' connection 32 adapter 4First elastic sheet 5 Second clamp 51 Second board 511 Second Space 52 second rotating member 53 Second rail 531 Second guide post 54 second clamping assembly 55 The first lower clamp 551 first limit slot 56 Second lower clamp 561 second limit slot 57 Second Push Plate 58 second elastic member 59 second clamping part 6 Second elastic sheet 7Third clamp 71 columns 711 fixings 72 Third Space 73 third clamping assembly 74 First Gap 75 Push piece 751 Second Gap 76 third rotating member 77 third elastic member 78 Third guide post 81 First Machine 811 lower clamp 812,812' Upper fixture 82 Second machine 821 machine fixture 822 Rotating Arm 823 Clamping end 9 reels 91 first external cam 911 first tooth 92 first inner cam 93 Second external cam 931 second convex tooth 94 second inner cam 100 tested components. DETAILED DESCRIPTION

[0028] In order to further understand the present invention, the following preferred embodiments are given, and the specific components of the present invention and the effects achieved are described in detail with reference to the accompanying drawings and reference numerals as follows: The jig 1 of the present invention has a first fixture 2, the first fixture 2 is provided with a first space 211, a first clamping component 24 is connected and positioned in the first space 211 in a detachable manner, the first clamping component 24 has a first clamping portion 29 to clamp the upper end of a rotating shaft 9; a connecting member 3 is located at the bottom of the first fixture 2, and the side of the connecting member 3 has at least one connecting portion 31, 31' to connect a first machine 81 or a second machine 82; a first elastic sheet 4 is sandwiched and connected between the first fixture 2 and the connecting member 3; a second fixture 5 is located at the bottom of the connecting member 3, the second fixture 5 has a second space 511, a second clamping component 54 is connected and positioned in the second space 511 in a detachable manner, the second clamping component 54 has a second clamping portion 59 to clamp the lower end of the rotating shaft 9; and a second elastic sheet 6 is sandwiched and connected between the connecting member 3 and the second fixture 5. Thus, the two clamping components 54 clamp the upper and lower ends of the rotating shaft 9 respectively, so that the first clamp 2, the first elastic sheet 4, the connecting piece 3, the second clamp 5, the second elastic sheet 6 and the rotating shaft 9 form a tested component 100, and when the bottom end of the rotating shaft 9 is clamped on a lower clamp 811 of the first machine 81, the first process of the rotating shaft 9 can be carried out; and when the tested component 100 on the first machine 81 is removed and the bottom end of the rotating shaft 9 of the tested component 100 is clamped on a machine clamp 821 of a second machine 82, the second process can be carried out. During implementation, the first machine 81 is a running-in machine, the second machine 82 is a torque testing machine, the first process is running-in, and the second process is torque testing.

[0029] See also Figure 1-Figure 7 As shown, it is a preferred embodiment of the fixture 1 of the present invention, which mainly includes a first clamp 2, a connecting member 3, a first elastic sheet 4, a second clamp 5, a second elastic sheet 6 and a third clamp 7. The first clamp 2 includes a first plate 21, a first rotating member 22, a first guide rail 23 and a first clamping assembly 24. The first plate 21 is a square flat plate. The plate surface of the first plate 21 has a square hole that runs through it from top to bottom. The square hole serves as a first space 211. The first space 211 has a first clamping assembly 24. The first clamping assembly 24 includes a first upper clamping block 25, a second upper clamping block 26, a first push plate 27 and two first elastic members 28. The first upper clamping block 25 and the second upper clamping block 26 are connected to each other, and the first upper clamping block 25 and the second upper clamping block 26 are respectively L-shaped; a first positioning groove 251 is provided on one side surface of the first upper clamping block 25, and a second positioning groove 261 is provided on one side surface of the second upper clamping block 26. The first positioning groove 251 and the second positioning groove 261 are respectively semicircular grooves with a plurality of spaced concave teeth. When implemented, the first positioning groove 251 and the second positioning groove 261 are combined to form a first clamping portion 29.

[0030] The first push plate 27 is a rectangular block, the first rotating member 22 is a headed bolt, one end of the first rotating member 22 passes through one side of the first plate body 21 and abuts against one side of the first push plate 27, and the other side of the first push plate 27 presses against one side of the first upper clamping block 25, two compression springs are positioned in parallel between the first upper clamping block 25 and the second upper clamping block 26, and the compression springs serve as the first elastic member 28; two mutually parallel first guide pillars 231 pass through the two sides of the first plate body 21, the first push plate 27, and the first upper clamping block 26 respectively. 5. Two first elastic members 28 and the second upper clamping block 26, the two first guide posts 231 are collectively configured as a first guide rail 23, so that the first clamping assembly 24 can be connected and positioned in the first space 211 in a detachable manner, and when the first rotating member 22 is rotated, the first push plate 27 and the two first elastic members 28 can push the first upper clamping block 25 in the opposite direction, so that the first upper clamping block 25 moves back and forth relative to the second upper clamping block 26, and the first positioning groove 251 and the second positioning groove 261 of the first clamping portion 29 are relatively opened or closed.

[0031] The connecting member 3 is a flat plate and is located at the bottom of the first clamp 2. The connecting member 3 has a square middle plate 30, and a circular hole is provided on the plate surface of the middle plate 30, and a straight plate is extended outward in opposite directions from the opposite sides of the middle plate 30, and the two straight plates serve as two connecting parts 31, 31'; the connecting member 3 also includes a transition member 32, and one end of the transition member 32 is connected to any one of the connecting parts 31, 31' of the connecting member 3, so that one end of the transition member 32 can be rotatably connected. The first elastic sheet 4 is a square thin sheet, and a square hole is provided in the middle area of ​​the first elastic sheet 4, and the first elastic sheet 4 is sandwiched and locked between the first clamp 2 and the connecting member 3.

[0032] The second clamp 5 has the same shape and structure as the first clamp 2, and the second clamp 5 is located at the bottom of the connecting member 3. The second clamp 5 includes a second plate body 51, a second rotating member 52, a second guide rail 53 and a second clamping assembly 54. The plate surface of the second plate body 51 has a second space 511 that runs through from top to bottom, and the second space 511 has a second clamping assembly 54. The second clamping assembly 54 includes a first lower clamping block 55, a second lower clamping block 56, a second push plate 57 and two second elastic members 58. The first lower clamping block 55 and the second lower clamping block 56 are connected to each other, and a first limiting groove 551 is provided on one side of the first lower clamping block 55, and a second limiting groove 561 is provided on one side of the second lower clamping block 56. The first limiting groove 551 and the second limiting groove 561 are semicircular grooves with a plurality of spaced concave teeth, respectively. The first limiting groove 551 and the second limiting groove 561 are collectively configured as a second clamping portion 59.

[0033] One end of the second rotating member 52 passes through one side of the second plate 51 and abuts against one side of the second push plate 57, and the other side of the second push plate 57 presses against one side of the first lower clamping block 55; two second elastic members 58 are positioned in parallel between the first lower clamping block 55 and the second lower clamping block 56; two second guide posts 531 parallel to each other pass through the two sides of the second plate 51, the second push plate 57, the first lower clamping block 55, the two second elastic members 58 and the second lower clamping block 56 respectively, and the two second guide posts 531 are combined to form a second guide rail 53. The second clamping assembly 54 is connected and positioned in the second space 511 in a detachable manner, and when the second rotating member 52 is rotated, the second push plate 57 and the two second elastic members 58 can push the first lower clamping block 55 in the opposite direction, so that the first lower clamping block 55 moves back and forth relative to the second lower clamping block 56, and the first limiting groove 551 and the second limiting groove 561 of the second clamping portion 59 are opened or closed. The second elastic piece 6 has the same shape and structure as the first elastic piece 4 . The second elastic piece 6 is sandwiched and locked between the connecting member 3 and the second clamp 5 .

[0034] The third clamp 7 is a square column, and has a column 71 . The column 71 has an elongated hole running through it from top to bottom. The elongated hole serves as a third space 72 . The third space 72 has a third clamping component 73 , and the third space 72 has a first notch 74 . In addition, the third clamping assembly 73 has a pushing piece 75 and two third elastic pieces 77. One side of the pushing piece 75 presses against one end of a third rotating piece 76. The other side of the pushing piece 75 has a second notch 751 corresponding to the first notch 74. The other side of the pushing piece 75 presses against two third elastic pieces 77 parallel to each other. Two third guide posts 78 parallel to each other pass through the two sides of the column 71, the pushing piece 75 and the two third elastic pieces 77 respectively, so that the third clamping assembly 73 can be connected and positioned in the third space 72 in a detachable manner. When the third rotating piece 76 is rotated, one end of the third rotating piece 76 and the two third elastic pieces 77 push the pushing piece 75 in the opposite direction, so that the pushing piece 75 moves back and forth in the third space 72, thereby opening or closing the first notch 74 and the second notch 751 relatively. The column 71 also includes a fixing member 711, and the column 71 is locked downwardly to the fixing member 711, so that the bottom surface of the column 71 is connected to the top surface of the fixing member 711. During implementation, the third clamp 7 can also be connected to the fixing member 711 downwardly via a plurality of pins, so that the column 71 is connected to the fixing member 711 in a detachable manner.

[0035] Thereby, when the first clamping component 24 of the first clamp 2 clamps the upper end of a rotating shaft 9, the second clamping component 54 of the second clamp 5 clamps the lower end of the rotating shaft 9, the lower end of the third clamp 7 is fixedly connected to a first machine platform 81 such as a running-in machine, and the third clamping component 73 clamps the bottom end of the rotating shaft 9, the relative running-in between the components of the rotating shaft 9 can be performed through at least one connecting portion 31, 31' of the rotating connecting member 3, and the up and down movement buffer of the first elastic sheet 4 and the second elastic sheet 6, so as to maintain a stable torque; and when the third clamping component 73 clamps the bottom end of the rotating shaft 9, and the fixing member 711 is fixedly connected to a second machine platform 82 such as a torque testing machine, the torque test of the rotating shaft 9 can be performed through at least one connecting portion 31, 31' of the rotating connecting member 3.

[0036] Based on the structure of the above fixture 1, Figure 2 , Figure 7-Figure 10 As shown, the method for using the fixture 1 of the present invention mainly includes the following steps: A. Provide an assembled rotating shaft 9, wherein the upper end of the rotating shaft 9 has a first outer cam 91 and a first inner cam 92 that are relatively clamped, and the outer periphery of the first outer cam 91 has a plurality of first convex teeth 911; the lower end of the rotating shaft 9 has a second outer cam 93 and a second inner cam 94 that are relatively clamped, and the outer periphery of the second outer cam 93 has a plurality of second convex teeth 931.

[0037] B. Rotate the first rotating member 22 so that the multiple spaced concave teeth in the first positioning groove 251 and the second positioning groove 261 respectively engage with the multiple first convex teeth 911, so that the first clamping portion 29 of the first clamping component 24 firmly clamps the first outer cam 91; and rotate the second rotating member 52 so that the multiple spaced concave teeth in the first limiting groove 551 and the second limiting groove 561 respectively engage with the multiple second convex teeth 931, so that the second clamping portion 59 of the second clamping component 54 firmly clamps the second outer cam 93; the combination of the first clamp 2, the connecting member 3, the first elastic sheet 4, the second clamp 5, the second elastic sheet 6 and the rotating shaft 9 forms a tested component 100.

[0038] C. Figures 7 to 9 As shown, the bottom end of the column 71 of the third fixture 7 is connected and fixed to a lower fixture 811 of a first machine 81 (running-in machine), the third clamping assembly 73 clamps the bottom end of the rotating shaft 9 of the tested component 100, and the two upper fixtures 812, 812' of the running-in machine are respectively connected to the two connecting parts 31, 31' of the limiting connecting member 3; then the two upper fixtures 812, 812' are horizontally rotated to run-in the various components of the rotating shaft 9, and after the running-in is completed, the third rotating member 76 is rotated to separate the lower end of the rotating shaft 9 from the column 71 to remove the entire set of tested components 100.

[0039] D. Figure 1 , Fig.10 As shown, the entire assembly 100 is fixedly connected to another column 71 locked to a torque tester, so that the bottom end of the rotating shaft 9 can be connected and fixed to a machine fixture 821 of the second machine 82 (torque tester). In addition, an adapter 32 is installed, and one end of the adapter 32 is connected to a connecting portion 31, 31' of the connecting member 3, and the other end of the adapter 32 is connected to a clamping end 823 of a rotating arm 822 of the torque tester, so that the connecting member 3 can be driven to rotate horizontally to perform a torque test on the rotating shaft 9.

[0040] In summary, the first, second and third clamping components of the present invention are all detachable components and are respectively assembled in the first, second and third clamps. When some parts are damaged, the internal parts can be conveniently replaced instead of the entire set of clamps, so as to save the material and time cost of replacing the parts. The design of the detachable clamping components can more effectively prevent personnel from damaging the clamps due to operating errors or idling, thereby extending the life of the clamps. In addition, the first and second clamping components respectively include clamping blocks that slide along the guide rails, and the clamping blocks have a toothed shape that matches the external cam of the rotating shaft 9, so that the first and second clamps can clamp the first and second external cams respectively without slipping during movement. In addition, during the test rotation process, the first and second elastic sheets can provide axial displacement buffering between the first and second clamps and the connecting member 3 to reduce the problem of damage to the rotating shaft 9 during the rotation process; and by making multiple sets of fixtures 1, after the rotating shaft 9 is assembled, only a detachable adapter 32 needs to be installed on the production line, that is, the fixture 1 can be used for both the running-in machine and the torque testing machine or can be used in other vertical automatic testing machines to perform different processes without the need to disassemble and assemble the rotating shaft 9 on different fixtures 1. Compared with the production process in the prior art, it can more effectively reduce the time for disassembling and assembling the fixture 1, thereby improving production efficiency.

[0041] Although the present invention discloses preferred specific embodiments to achieve the above-mentioned objectives, it is not intended to limit the structural features of the present invention. Any person skilled in the art should know that within the technical spirit of the present invention, any easily conceivable changes or modifications are possible and are all covered by the claims of the present invention.

Claims

1. A fixture, It is characterized in that include: A first clamp having a first space and a first clamping component, wherein the first clamping component is connected and positioned in the first space in a detachable manner, and the first clamping component has a first clamping portion for clamping an upper end of a rotating shaft; A connecting member, which is located at the bottom of the first clamp, and has at least one connecting portion on a side surface of the connecting member; A first elastic sheet, sandwiched and connected between the first clamp and the connecting member; a second clamp located at the bottom of the connecting member, the second clamp having a second space and a second clamping assembly, the second clamping assembly being connected and positioned in the second space in a detachable manner, and the second clamping assembly having a second clamping portion for clamping the lower end of the rotating shaft; and A second elastic sheet is sandwiched and connected between the connecting member and the second clamp.

2. The jig according to claim 1, It is characterized in that The first clamp also includes a first rotating member and a first guide rail, the first clamping assembly includes a first upper clamping block and a second upper clamping block connected to each other, the first clamping portion includes a first positioning groove and a second positioning groove; the first upper clamping block has the first positioning groove, and the second upper clamping block has the second positioning groove; one end of the first rotating member is connected to the first upper clamping block to push the first upper clamping block; the first upper clamping block and the second upper clamping block are connected to the first guide rail, so that the first clamping assembly is connected and positioned in the first space in a detachable manner.

3. The jig according to claim 2, It is characterized in that The first positioning groove and the second positioning groove are respectively semicircular grooves with a plurality of spaced concave teeth.

4. The jig according to claim 2, It is characterized in that The first clamp also includes a first push plate and at least one first elastic member, one side of the first push plate is connected to one end of the first rotating member, the other side of the first push plate presses against the first upper clamping block, and the first push plate is connected to the first guide rail, so that the first rotating member drives the first push plate to push the first upper clamping block.

5. The jig according to claim 4, It is characterized in that The first clamp includes two first elastic members, and the first guide rail includes two first guide posts parallel to each other. The two first guide posts respectively pass through the first push plate, the first upper clamping block, the two first elastic members and the second upper clamping block to connect and position the first clamping assembly and enable the first upper clamping block and the second upper clamping block to move relative to each other.

6. The jig according to claim 1, It is characterized in that The connecting piece is a flat plate and comprises two straight-plate-shaped connecting parts, and the two connecting parts extend outwards in opposite directions from two opposite side surfaces of the connecting piece respectively.

7. The jig according to claim 1, It is characterized in that The second clamp also includes a second rotating member and a second guide rail, the second clamping assembly includes a first lower clamping block and a second lower clamping block connected to each other, the second clamping portion includes a first limiting groove and a second limiting groove; the first lower clamping block has the first limiting groove, and the second lower clamping block has the second limiting groove; one end of the second rotating member is connected to the first lower clamping block to push the first lower clamping block; the first lower clamping block and the second lower clamping block are connected to the second guide rail, so that the second clamping assembly is connected and positioned in the second space in a detachable manner.

8. The jig according to claim 7, It is characterized in that The first limiting groove and the second limiting groove are respectively semicircular grooves with a plurality of spaced concave teeth.

9. The jig according to claim 7, It is characterized in that The second clamp also includes a second push plate and at least one second elastic member, one side of the second push plate is connected to one end of the second rotating member, the other side of the second push plate presses against the first lower clamping block, and the second push plate is connected to the second guide rail, so that the second rotating member drives the second push plate to push the first lower clamping block.

10. The jig according to claim 9, It is characterized in that The second clamp includes two second elastic members, and the second guide rail includes two second guide posts parallel to each other. The two second guide posts respectively pass through the second push plate, the first lower clamp block, the two second elastic members and the second lower clamp block to connect and position the second clamping assembly and enable the first lower clamp block and the second lower clamp block to move relative to each other.

11. The jig according to claim 1, It is characterized in that It also includes a third clamp, which includes a column and a third clamping component. The column has a third space. The third clamping component is connected and positioned in the third space in a detachable manner. The third space has a first notch. The third clamping component has a pushing piece. The pushing piece has a second notch corresponding to the first notch to clamp the bottom end of the rotating shaft.

12. The jig according to claim 11, It is characterized in that The third clamp also includes a fixing member, the top surface of which is connected to the bottom surface of the column in a detachable manner.

13. The jig according to claim 1, It is characterized in that The connecting member further comprises a transition member, one end of which is fixedly connected to the at least one connecting portion, and the other end of which has a clamping end.

14. A method for using the fixture as claimed in any one of claims 1 to 13, It is characterized in that The following steps are involved: A. Provide the assembled rotating shaft, wherein the upper end of the rotating shaft has a first outer cam and a first inner cam that are relatively engaged, and the lower end of the rotating shaft has a second outer cam and a second inner cam that are relatively engaged; B. clamping the first outer cam with the first clamping portion of the first clamping assembly, and clamping the second outer cam with the second clamping portion of the second clamping assembly, so that the first clamp, the connecting member, the first elastic sheet, the second clamp, the second elastic sheet and the rotating shaft form a tested assembly; C. Connect and fix the bottom end of the rotating shaft of the tested component to a lower fixture of a first machine, and allow at least one upper fixture of the first machine to connect and limit at least one connecting portion of the connecting member; then rotate the lower fixture to perform a first process of the rotating shaft, and remove the tested component after the first process is completed; and D. The bottom end of the rotating shaft of the tested component is connected and fixed to a machine fixture of a second machine, and one end of the connecting member is limitedly connected to a clamping end of a rotating arm of the second machine to perform a second process.

15. A method for using the jig according to claim 14, It is characterized in that The connecting member is a flat plate, and includes two straight-plate-shaped connecting parts, which extend outward in opposite directions from two opposite side surfaces of the connecting member; the first machine has two upper clamps, which are respectively connected to limit the two connecting parts of the connecting member.

16. A method for using the jig according to claim 15, It is characterized in that The connecting member also includes a transition member, one end of which is fixedly connected to one of the two connecting parts, and the other end of which is limitedly connected to the clamping end.

17. A method for using the jig according to claim 14, It is characterized in that The fixture also includes a third clamp, which has a column and a third clamping component. The column has a third space. The third clamping component is connected and positioned in the third space in a removable manner. The third space has a first notch. The third clamping component has a pushing piece. The pushing piece has a second notch corresponding to the first notch to clamp the bottom end of the rotating shaft. The bottom end of the third clamp is connected and fixed to the lower clamp of the first machine or the machine clamp of the second machine.

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