Hexagonal head bolt torque testing tool

Abstract

The utility model relates to a hexagon-headed bolt torque testing tool, which comprises a workbench, a motor, a torque sensor, a sleeve a, a mounting seat, a clamp seat, a clamping plate, a locking seat and a sleeve b, and is characterized in that the workbench is connected with the motor, one end of the torque sensor is connected with the output end of the motor, and the other end of the torque sensor is detachably connected with the sleeve a; the mounting seat is movably connected with a clamp seat and a locking seat, the clamp seat is clamped with a clamping plate, the locking seat is detachably connected with a sleeve b, and the clamping plate is provided with mounting holes which are coaxially distributed with the sleeve a and the sleeve b. According to the utility model, the motor controls the sleeve a to rotate forwards and backwards so as to lock or loosen the to-be-tested bolt, the torque sensor transmits torque in real time and generates a torque curve graph, and the sleeve a and the sleeve b are coaxially distributed on two sides of the to-be-tested bolt, so that the accuracy of experimental data is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener testing, in particular to a hexagonal head bolt torque testing tool. Background Art

[0002] Bolts are fasteners composed of hexagonal screws and nuts. They are important automotive accessories. The torque of bolts is an important parameter for testing the mechanical strength of bolts. The experimental data reflects the tightness and torsion resistance of bolts. The traditional method of testing bolt torque is to fix and clamp the nut end of the bolt and mark the screw. The other end is directly clamped with a torque wrench to clamp the hexagonal head of the screw. The torque wrench is rotated to detect the bolt locking torque or limit torque. However, it is difficult to ensure that the torque wrench itself is always perpendicular to the bolt during movement. The torque data detected each time is quite different, and the experimental data is not accurate enough. Summary of the invention

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a hexagonal head bolt torque testing tool, including a workbench, a motor, a torque sensor and a sleeve a, the workbench is connected to the motor, one end of the torque sensor is connected to the output end of the motor, and the other end is detachably connected to the sleeve a, and also includes a mounting seat, a clamp seat, a splint, a locking seat and a sleeve b, the mounting seat is movably connected to the clamp seat and the locking seat, the clamp seat is clamped with a splint, the locking seat is detachably connected to the sleeve b, and the splint is provided with a mounting hole coaxially distributed with the sleeve a and the sleeve b.

[0004] By adopting the above technical scheme, the bolt to be tested is pre-installed on the clamp through the mounting hole, and the bolt to be tested is coaxially distributed on the sleeve a and the sleeve b through the positioning of the clamp, and the fixture seat and the locking seat are moved toward the direction of the torque sensor in turn, so that the screw end of the bolt to be tested is clamped in the sleeve a, and the nut end of the bolt to be tested is clamped in the sleeve b. The motor controls the forward and reverse rotation of the sleeve a to tighten or loosen the bolt to be tested, and the torque is transmitted by the torque sensor in real time to generate a torque curve graph. Since the sleeve a and the sleeve b are coaxially distributed on both sides of the bolt to be tested, the experimental data has high accuracy. At the same time, the utility model can replace sleeves a and sleeves b of different models, as well as clamps with mounting holes of different diameters. It is suitable for hexagonal bolts of different sizes and has a wide range of applications.

[0005] The utility model is further configured such that the mounting seat is provided with a linear guide rail, a connecting rod and a rack, the clamp seat is slidably connected to the mounting seat via the linear guide rail and the connecting rod, the locking seat is slidably connected to the mounting seat via the linear guide rail, and the locking seat is provided with a gear meshing with the rack.

[0006] Furthermore, the clamp seat is provided with a limiting slot, the clamp plate is provided with a clamping block adapted to the limiting slot, and the clamp plate is clamped to the clamp seat via the limiting slot.

[0007] Furthermore, locking handwheels are provided on both sides of the clamp seat, the locking handwheels are threadedly connected to the clamp seat, and the locking handwheels abut against the connecting rod.

[0008] By adopting the above technical solution, the splint is composed of two independent plates, which is used to simulate the installation environment when the bolts lock the two plates. The splint can be replaced by plugging and unplugging. The replacement method is simple and convenient. The clamp seat can be prevented from sliding freely during the experiment by locking the handwheel, thereby improving the accuracy of the experiment.

[0009] The utility model is further configured as follows: the locking seat includes a base, an adjusting hand wheel and a shell; the base is slidably connected to the mounting seat via a linear guide rail; the base is rotatably connected to the adjusting hand wheel; the adjusting hand wheel is key-connected to a gear matched with the rack; and the base is provided with a shell.

[0010] Furthermore, the locking seat also includes a connecting column and a transfer rod, the connecting column is connected to the shell, and the direction of the connecting column is perpendicular to the table surface of the workbench, the connecting column is clamped with a transfer rod for connecting sleeve b, and the transfer rod is vertically distributed on the connecting column.

[0011] Furthermore, the transfer rod is provided with a connection hole adapted to the connection column, the transfer rod is slidably connected to the connection column, one end of the transfer rod is provided with a rectangular block, and the other end is provided with a locking screw, and the locking screw abuts against the connection column.

[0012] Furthermore, the sleeve b is provided with a locking plate, the rectangular block is provided with a threaded hole, and the sleeve b is threadedly connected to the rectangular block through the threaded hole.

[0013] By adopting the above technical solution, when the locking seat needs to be moved, the locking seat is controlled to move by rotating the adjustment hand wheel, thereby controlling the distance between the locking seat and the clamp seat. Sleeve b is a universal external hexagonal sleeve, and its two ends are respectively a hexagonal groove and a rectangular groove. Sleeve b is clamped on the rectangular block through the rectangular groove, and sleeve b is fixed to the adapter rod by screws passing through the locking plate to prevent sleeve b from detaching.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The motor controls the forward and reverse rotation of sleeve a to tighten or loosen the bolt to be tested. The torque is transmitted in real time by the torque sensor to generate a torque curve. Since sleeve a and sleeve b are coaxially distributed on both sides of the bolt to be tested, the experimental data is highly accurate.

[0016] 2. The utility model can replace sleeves a and sleeves b of different models, as well as clamps with mounting holes of different diameters, and is suitable for hexagonal bolts of different sizes, with a wide range of applications.

[0017] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the utility model;

[0020] Figure 3 This is a structural exploded diagram of the fixture seat of the utility model;

[0021] Figure 4 This is a structural exploded diagram of the locking seat of the utility model;

[0022] Figure 5 It is a three-dimensional diagram of the transfer rod of the utility model;

[0023] Wherein: 1- workbench, 2- motor, 3- torque sensor, 4- sleeve a, 5- mounting seat, 6- fixture seat, 7- clamp, 8- locking seat, 9- sleeve b, 10- mounting hole, 11- linear guide, 12- connecting rod, 13- rack, 14- gear, 15- limit card slot, 16- card block, 17- locking handwheel, 18- base, 19- adjusting handwheel, 20- housing, 21- connecting column, 22- transfer rod, 23- connecting hole, 24- rectangular block, 25- locking screw, 26- locking plate, 27- threaded hole; DETAILED DESCRIPTION

[0024] like Figure 1 , 2 As shown, this embodiment provides a hexagonal head bolt torque testing tool, including a workbench 1, a motor 2, a torque sensor 3 and a sleeve a4, the workbench 1 is connected to the motor 2, one end of the torque sensor 3 is connected to the output end of the motor 2, and the other end is detachably connected to the sleeve a4, and also includes a mounting seat 5, a clamp seat 6, a splint 7, a locking seat 8 and a sleeve b9, the mounting seat 5 is movably connected to the clamp seat 6 and the locking seat 8, the clamp seat 6 is clamped with the splint 7, the locking seat 8 is detachably connected to the sleeve b9, and the splint 7 is provided with a mounting hole 10 coaxially distributed with the sleeve a4 and the sleeve b9.

[0025] Combination Figure 3 , 4In the embodiment shown in the figure, the mounting seat 5 is provided with a linear guide 11, a connecting rod 12 and a rack 13. The clamp seat 6 is slidably connected to the mounting seat 5 through the linear guide 11 and the connecting rod 12. The locking seat 8 is slidably connected to the mounting seat 5 through the linear guide 11, and the locking seat 8 is provided with a gear 14 meshing with the rack 13. The clamp seat 6 is provided with a limiting slot 15, and the clamp plate 7 is provided with a clamping block 16 adapted to the limiting slot 15. The clamp plate 7 is clamped to the clamp seat 6 through the limiting slot 15. Locking hand wheels 17 are provided on both sides of the clamp seat 6. The locking hand wheel 17 is threadedly connected to the clamp seat 6, and the locking hand wheel 17 abuts against the connecting rod 12. The clamp plate 7 is composed of two independent plates, which are used to simulate the installation environment when the bolts lock the two plates. The clamp plate 7 can be replaced by plugging and unplugging. The replacement method is simple and convenient. The locking hand wheel 17 is used to prevent the clamp seat 6 from sliding freely during the experiment, thereby improving the accuracy of the experiment.

[0026] Combination Figure 4 , 5 As shown, in this embodiment, the locking seat 8 includes a base 18, an adjusting hand wheel 19 and a shell 20. The base 18 is slidably connected to the mounting seat 5 through a linear guide rail 11. The base 18 is rotatably connected to the adjusting hand wheel 19. The adjusting hand wheel 19 is key-connected to the gear 14 that matches the rack 13. The base 18 is sleeved with the shell 20. The locking seat 8 also includes a connecting column 21 and a transfer rod 22. The connecting column 21 is connected to the shell 20, and the direction of the connecting column 21 is perpendicular to the table surface of the workbench 1. The connecting column 21 is clamped with a transfer rod 22 for connecting the sleeve b9. The transfer rod 22 is vertically distributed on the connecting column 21. The transfer rod 22 is provided with a connecting hole 23 that matches the connecting column 21. The transfer rod 22 slides Connected to the connecting column 21, a rectangular block 24 is provided at one end of the adapter rod 22, and a locking screw 25 is provided at the other end. The locking screw 25 abuts against the connecting column 21. The sleeve b9 is provided with a locking plate 26. The rectangular block 24 is provided with a threaded hole 27. The sleeve b9 is threadedly connected to the rectangular block 24 through the threaded hole 27. When the locking seat 8 needs to be moved, the locking seat 8 is controlled to move by rotating the adjusting hand wheel 19, thereby controlling the distance between the locking seat 8 and the clamp seat 6. The sleeve b9 is a universal external hexagonal sleeve, and its two ends are respectively an internal hexagonal groove and a rectangular groove. The sleeve b9 is clamped on the rectangular block 24 through the rectangular groove, and the sleeve b9 is fixed to the adapter rod 22 by screws passing through the locking plate 26 to prevent the sleeve b9 from detaching.

[0027] The working principle of the utility model is: the bolt to be tested is pre-installed on the clamp 7 through the mounting hole 10, the fixture seat 6 is moved to the torque sensor 3, and the screw end of the bolt to be tested is stuck in the sleeve a4, the locking screw 25 is rotated to lock the fixture seat 6, and the adjusting hand wheel 19 is rotated to move the locking seat 8 toward the direction of the fixture seat 6, and the nut end of the bolt to be tested is stuck in the sleeve b9, at this time, one end of the bolt is fixed by the sleeve b9, and the other end is controlled by the motor 2 to rotate, and the torque at the sleeve a4 is transmitted in real time by the torque sensor 3 to generate a torque curve graph; it is worth mentioning that a second torque sensor can be installed between the sleeve b9 and the adapter rod 22, so as to transmit the torque at the sleeve b9 in real time, and at the same time, the torque at both ends of the bolt can be monitored to increase the comparative data of the experiment.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hexagonal bolt torque test tool, comprising a workbench (1), a motor (2), a torque sensor (3) and a sleeve a (4), wherein the workbench (1) is connected to the motor (2), one end of the torque sensor (3) is connected to the output end of the motor (2), and the other end is detachably connected to the sleeve a (4), characterized in that: The invention also comprises a mounting seat (5), a clamp seat (6), a clamping plate (7), a locking seat (8) and a sleeve b (9); the mounting seat (5) is movably connected to the clamp seat (6) and the locking seat (8); the clamp seat (6) is clamped with the clamping plate (7); the locking seat (8) is detachably connected to the sleeve b (9); and the clamping plate (7) is provided with a mounting hole (10) coaxially distributed with the sleeve a (4) and the sleeve b (9).

2. A hexagonal head bolt torque testing tool according to claim 1, characterized in that: The mounting seat (5) is provided with a linear guide rail (11), a connecting rod (12) and a rack (13); the clamp seat (6) is slidably connected to the mounting seat (5) via the linear guide rail (11) and the connecting rod (12); the locking seat (8) is slidably connected to the mounting seat (5) via the linear guide rail (11), and the locking seat (8) is provided with a gear (14) meshingly connected to the rack (13).

3. A hexagonal head bolt torque testing tool according to claim 2, characterized in that: The clamp seat (6) is provided with a limiting slot (15), the clamp plate (7) is provided with a clamping block (16) adapted to the limiting slot (15), and the clamp plate (7) is clamped to the clamp seat (6) via the limiting slot (15).

4. A hexagonal head bolt torque testing tool according to claim 3, characterized in that: Locking hand wheels (17) are provided on both sides of the clamp seat (6), the locking hand wheels (17) are threadedly connected to the clamp seat (6), and the locking hand wheels (17) abut against the connecting rod (12).

5. The hexagonal head bolt torque testing tool according to claim 2, characterized in that: The locking seat (8) comprises a base (18), an adjusting hand wheel (19) and a shell (20); the base (18) is slidably connected to the mounting seat (5) via a linear guide rail (11); the base (18) is rotatably connected to the adjusting hand wheel (19); the adjusting hand wheel (19) is key-connected to a gear (14) matched with the rack (13); and the base (18) is sleeved with the shell (20).

6. A hexagonal head bolt torque testing tool according to claim 5, characterized in that: The locking seat (8) also includes a connecting column (21) and a transfer rod (22), wherein the connecting column (21) is connected to the housing (20), and the direction of the connecting column (21) is perpendicular to the table surface of the workbench (1), and the connecting column (21) is clamped with a transfer rod (22) for connecting the sleeve b (9), and the transfer rod (22) is vertically distributed on the connecting column (21).

7. A hexagonal head bolt torque testing tool according to claim 6, characterized in that: The transfer rod (22) is provided with a connection hole (23) adapted to the connection column (21), the transfer rod (22) is slidably connected to the connection column (21), one end of the transfer rod (22) is provided with a rectangular block (24), and the other end is provided with a locking screw (25), and the locking screw (25) abuts against the connection column (21).

8. The hexagonal head bolt torque testing tool according to claim 7, characterized in that: The sleeve b (9) is provided with a locking piece (26), the rectangular block (24) is provided with a threaded hole (27), and the sleeve b (9) is threadedly connected to the rectangular block (24) through the threaded hole (27).

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