Fatigue testing machine for adjusting torque of control arm

Abstract

The utility model provides a fatigue testing machine for adjusting the torque of a control arm, and belongs to the technical field of machine manufacturing. The problem that an existing torque testing machine is poor in protection effect is solved. The fatigue testing machine for adjusting the torque of the control arm comprises a driving box, supporting rods are welded to the four corners of the driving box, a control box is welded to the tops of the supporting rods, a protective cover is fixedly connected to the top of the control box, inserting mechanisms are welded to the front side and the rear side of the protective cover, and mounting frames are fixedly connected to the two sides of the top of the control box; an electric push rod is connected to the top of the rear side of the mounting frame, a cover plate is connected to the bottom of the electric push rod, inserting plates are welded to the two sides of the front side of the cover plate, a clamping block is welded to the right side of the bottom of the cover plate, a transmission rod is fixedly connected to the top of an output shaft of the driving box, and a torque sensor is connected to the top of the transmission rod; the top of the chuck rotating shaft penetrates into an inner cavity of the protection cover and is fixedly connected with a four-jaw chuck. The protective device has the advantages of good protective effect and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, and in particular relates to an adjustment control arm torque fatigue testing machine. Background Art

[0002] When performing torque fatigue testing on the adjustment control arm, a torque fatigue testing machine is required. The current testing machine has poor protection effect. When a fracture occurs during the test of the control arm, the splashing debris splashes everywhere, which can easily injure the staff and increase the difficulty of cleaning the debris. At the same time, it is impossible to record the maximum torque within the range and cannot display the number of fatigue test tests. Summary of the Invention

[0003] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide an adjustable control arm torque fatigue testing machine which has good protection effect, can avoid accidental injury to personnel, is convenient for cleaning, can record the maximum torque within the measuring range, and display the number of fatigue tests.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a torque fatigue testing machine for adjusting a control arm, comprising a drive box, support rods are welded on the four corners of the drive box, a control box is welded on the top of the support rod, a protective cover is fixedly connected to the top of the control box, and a plug-in mechanism is welded on the front and rear sides of the protective cover, a mounting bracket is fixedly connected on both sides of the top of the control box, an electric push rod is connected to the top of the rear side of the mounting bracket by bolts, a cover plate is connected to the bottom of the electric push rod by bolts, plug plates are welded on both sides of the front side of the cover plate, a clamping block is welded on the right side of the bottom of the cover plate, a transmission rod is fixedly connected to the top of the drive box output shaft, a torque sensor is connected to the top of the transmission rod by bolts, a chuck shaft is connected to the top of the torque sensor by bolts, and the top of the chuck shaft passes through the inner cavity of the protective cover and is fixedly connected to a four-jaw chuck.

[0005] This adjustment control arm torque fatigue testing machine mainly sets a protective cover, a cover plate, a touch screen, a four-jaw chuck and a torque sensor on the top of the control box and the transmission rod. The protective cover, the cover plate, the touch screen, the four-jaw chuck and the torque sensor can improve the protection effect, avoid accidental injury to personnel, facilitate cleaning, record the maximum torque within the range, and display the number of fatigue tests.

[0006] In the above-mentioned test machine for adjusting the torque fatigue of a control arm, the plug-in mechanism includes a plug-in shell, the outer side of the plug-in shell is fixedly connected to a positioning shell, the inner cavity of the positioning shell is slidably connected to a positioning pin, the inner side of the positioning pin extends through the inner cavity of the plug-in shell, the outer side of the positioning pin is fixedly connected to a pull rod, the surface of the pull rod is sleeved with a positioning spring, and the outer side of the pull rod extends through the outer side of the positioning shell. By setting up the plug-in mechanism, the function of facilitating positioning is achieved. When the cover plate is covered on the protective cover, the plug-in plates on both sides are inserted into the plug-in shell, and the positioning spring releases the elastic force to push the positioning pin into the positioning groove for positioning. When it needs to be opened, just pull the pull rod outward. In this way, there is no need to use bolts for positioning, the operation is more convenient and quick, and the test efficiency is improved.

[0007] In the aforementioned control arm torque fatigue testing machine, dual-brake running wheels are bolted to the four corners of the bottom of the drive box, and a protective net is fixedly connected to the four sides of the top of the drive box. The protective net provides a protective function to prevent foreign objects from hitting the transmission rod.

[0008] In the aforementioned adjustable control arm torque fatigue testing machine, a touch screen is fixedly connected to the right side of the control box, and mounting bearings are provided on the top and bottom of the chuck shaft surface. The provision of the mounting bearings facilitates the movable connection between the chuck shaft and the control box.

[0009] In the aforementioned control arm torque fatigue testing machine, an access hole is provided on the front side of the protective cover, and an observation window is provided on the right side of the protective cover. The access hole facilitates insertion of a chuck wrench into the protective cover to adjust the four-jaw chuck, while the observation window facilitates observation of whether the clamping block is engaged with the torque arm of the workpiece.

[0010] In the above-mentioned torque fatigue testing machine for adjusting a control arm, a positioning groove is provided on the outer side of the inserting plate, and a workpiece body is mounted on the top of the four-jaw chuck.

[0011] Compared with the existing technology, the advantages of this adjustment control arm torque fatigue testing machine are: it has good protection effect during work, can avoid accidental injury to personnel, is convenient for cleaning, can record the maximum torque within the range, and display the number of fatigue tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an axonometric view of the adjustment control arm torque fatigue testing machine.

[0013] Figure 2 This is a partial structural isometric view of the adjustment control arm torque fatigue testing machine.

[0014] Figure 3This is a right-side top view of the control box of the adjustment control arm torque fatigue testing machine.

[0015] Figure 4 This is the adjustment control arm torque fatigue testing machine Figure 3 A magnified view of center.

[0016] Figure 5 This is a bottom-view axonometric view of the cover plate of the adjustment control arm torque fatigue testing machine.

[0017] In the figure: 1. Drive box; 2. Transmission rod; 3. Control box; 4. Protective cover; 5. Mounting frame; 6. Electric push rod; 7. Cover plate; 8. Touch screen; 9. Protective net; 10. Support rod; 11. Double-brake travel wheel; 12. Chuck shaft; 13. Positioning slot; 14. Workpiece body; 15. Four-jaw chuck; 16. Mounting bearing; 17. Torque sensor; 18. Plug-in mechanism; 19. Plug-in shell; 20. Positioning shell; 21. Positioning spring; 22. Pull rod; 23. Positioning pin; 24. Insert plate; 25. Block. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the present adjustment control arm torque fatigue testing machine includes a drive box 1, support rods 10 are welded to the four corners of the drive box 1, a control box 3 is welded to the top of the support rod 10, a protective cover 4 is fixedly connected to the top of the control box 3, and a plug-in mechanism 18 is welded to the front and rear sides of the protective cover 4, and mounting brackets 5 are fixedly connected to both sides of the top of the control box 3. The top of the rear side of the mounting bracket 5 is connected to an electric push rod 6 by bolts, and the bottom of the electric push rod 6 is connected to a cover plate 7 by bolts. Insert plates 24 are welded to both sides of the front side of the cover plate 7, and a clamping block 25 is welded to the right side of the bottom of the cover plate 7. The top of the output shaft of the drive box 1 is fixedly connected to a transmission rod 2, and the top of the transmission rod 2 is connected to a torque sensor 17 by bolts. The top of the torque sensor 17 is connected to a chuck shaft 12 by bolts, and the top of the chuck shaft 12 passes through the inner cavity of the protective cover 4 and is fixedly connected to a four-jaw chuck 15.

[0020] The plug-in mechanism 18 includes a plug-in shell 19, the outer side of the plug-in shell 19 is fixedly connected to a positioning shell 20, the inner cavity of the positioning shell 20 is slidably connected to a positioning pin 23, the inner side of the positioning pin 23 passes through the inner cavity of the plug-in shell 19, the outer side of the positioning pin 23 is fixedly connected to a pull rod 22, the surface of the pull rod 22 is provided with a positioning spring 21, and the outer side of the pull rod 22 passes through the outer side of the positioning shell 20.

[0021] The four corners of the bottom of the drive box 1 are connected to double-brake running wheels 11 through bolts, and the four sides of the top of the drive box 1 are fixedly connected to a protective net 9.

[0022] The right side of the control box 3 is fixedly connected to a touch screen 8. The top and bottom surfaces of the chuck shaft 12 are sleeved with mounting bearings 16. An access hole is provided on the front side of the protective cover 4, and an observation window is provided on the right side. A positioning slot 13 is provided on the outside of the insert plate 24, and the workpiece body 14 is mounted on top of the four-jaw chuck 15.

[0023] When in use, connect the device to an external power source, then place the workpiece body 14 on the claw teeth at the top of the four-jaw chuck 15 to engage and then lock it, control the electric push rod 6 to push the cover plate 7 down to contact the top of the protective cover 4, and after the cover is closed, the block 25 clamps the torque arm of the workpiece body 14, the touch screen 8 sets the test torque value and starts the device, and the green light on the touch screen 8 lights up at the same time, the drive box 1 works to drive the upper four-jaw chuck 15 to rotate through the transmission rod 2, and the torque is maintained through two loading modes of forward and reverse rotation and three minutes (the time can be set arbitrarily). The torque sensor 17 detects that the motor rotates back after reaching the set torque value, and runs continuously, recording once for each cycle until the torque value suddenly decreases during the process of increasing from 0 to the set value. The motor stops running, and the red light on the touch screen 8 is displayed, and the number of records is kept. In this way, the maximum torque within the range can be recorded, and the number of fatigue tests can be displayed at the same time. Since the workpiece body 14 is tested inside the protective cover 4, when it breaks, the debris will not accidentally injure external personnel, and the debris is concentrated inside the protective cover 4 for easy cleaning.

[0024] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A control arm torque fatigue testing machine, comprising a drive box (1), characterized in that: The four corners of the drive box (1) are welded with support rods (10), the top of the support rods (10) is welded with a control box (3), the top of the control box (3) is fixedly connected with a protective cover (4), the front and rear sides of the protective cover (4) are welded with plug-in mechanisms (18), the two sides of the top of the control box (3) are fixedly connected with mounting brackets (5), the top of the rear side of the mounting bracket (5) is connected to an electric push rod (6) by bolts, and the bottom of the electric push rod (6) is connected to a cover plate (7) by bolts. ), insert plates (24) are welded on both sides of the front side of the cover plate (7), a clamping block (25) is welded on the right side of the bottom of the cover plate (7), the top of the output shaft of the drive box (1) is fixedly connected to the transmission rod (2), the top of the transmission rod (2) is connected to the torque sensor (17) by bolts, the top of the torque sensor (17) is connected to the chuck shaft (12) by bolts, the top of the chuck shaft (12) passes through the inner cavity of the protective cover (4) and is fixedly connected to the four-jaw chuck (15).

2. The torque fatigue testing machine for adjusting a control arm according to claim 1, characterized in that: The plug-in mechanism (18) includes a plug-in shell (19), the outer side of the plug-in shell (19) is fixedly connected to a positioning shell (20), the inner cavity of the positioning shell (20) is slidably connected to a positioning pin (23), the inner side of the positioning pin (23) passes through the inner cavity of the plug-in shell (19), the outer side of the positioning pin (23) is fixedly connected to a pull rod (22), the surface of the pull rod (22) is provided with a positioning spring (21), and the outer side of the pull rod (22) passes through the outer side of the positioning shell (20).

3. The torque fatigue testing machine for adjusting a control arm according to claim 1, characterized in that: The four corners of the bottom of the drive box (1) are connected to dual-brake running wheels (11) through bolts, and the four sides of the top of the drive box (1) are fixedly connected to protective nets (9).

4. The adjustable control arm torque fatigue testing machine according to claim 1, characterized in that: A touch screen (8) is fixedly connected to the right side of the control box (3), and mounting bearings (16) are sleeved on the top and bottom of the surface of the chuck shaft (12).

5. The control arm torque fatigue testing machine according to claim 1, characterized in that: An operation through hole is provided on the front side of the protective cover (4), and an observation window is provided on the right side of the protective cover (4).

6. The torque fatigue testing machine for adjusting a control arm according to claim 1, characterized in that: A positioning groove (13) is provided on the outer side of the inserting plate (24), and a workpiece body (14) is installed on the top of the four-jaw chuck (15).

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