Rotary joint torsion testing device

Abstract

The utility model relates to the technical field of rotary joint test, especially a rotary joint torsion testing device, including the joint of waiting and measuring positioning part and movable part, the upside of test platform is provided with the test bin, when needing to carry out torsion test to rotary joint, the positioning part of rotary joint is placed on the limiting recess, makes the limiting base to fall in the limiting recess, then utilizes the limiting pin of limiting base downside setting, extends into the limiting pin seat, makes the positioning part of the joint of waiting and measuring can stably sit in the limiting recess, to limit the positioning part of the joint of waiting and measuring along the rotation of circumference, sets up the joint driving part in the test platform, the movable part of the joint driving part output end is equipped with the driving shaft and is connected to the positioning part of the joint of waiting and measuring, to drive the movable part of the joint of waiting and measuring and the positioning part of the joint of waiting and measuring produce the rotation, to drive the action of torsion test to complete.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary joint testing, and in particular to a rotary joint torque testing device. Background Technology

[0002] In fields such as industrial robots, medical devices, automotive transmission systems, and aerospace components, rotary joints are core components that enable multi-angle movement of mechanical structures. To better test the torsional load-bearing capacity and fatigue resistance of rotary joints, torsional testing is required. Traditional testing fixtures often use clamping to hold the rotary joint and then drive the moving part of the joint through a drive component. However, this clamping method is prone to deformation damage to the rotary joint, leading to torsional deviation. Furthermore, the clamping method can slip, further increasing the risk of testing instability. Therefore, a rotary joint torsional testing device is needed to improve the fixation stability of the rotary joint and reduce damage during testing, thus solving the above problems. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a rotary joint torque testing device to solve the stability problem in the rotary joint testing process in the prior art.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution: A rotary joint torque testing device, comprising: The joint to be tested includes a positioning part and a movable part; A testing machine has a testing chamber on its upper side, and a limiting groove on the upper side of the testing chamber to support the positioning part of the joint to be tested. A limiting pin seat is arranged circumferentially within the limiting groove, and a limiting base is provided below the positioning part of the joint to be tested. A limiting pin is provided on the lower side of the limiting base, extending into the limiting pin seat, to restrict the positioning part of the joint to be tested from rotating circumferentially. A joint drive component is provided inside the testing machine, and a drive shaft is provided at the output end of the joint drive component, which is connected to the movable part of the joint to be tested, so as to drive the movable part of the joint to be tested to rotate relative to the positioning part of the joint to be tested.

[0005] In one embodiment of the present invention, a joint drive frame is provided inside the test chamber, a joint drive seat is provided between the upper side of the joint drive frame and the movable part of the joint to be tested, a rotatable auxiliary shaft is provided inside the joint drive seat, and a coupling is provided between the lower side of the auxiliary shaft and the drive shaft.

[0006] In one embodiment of the present invention, an encoder seat is provided in the test chamber on the lower side of the joint drive frame, and an encoder is provided in the encoder seat. The drive shaft passes through the encoder and is connected to the auxiliary shaft.

[0007] In one embodiment of the present invention, the encoder base is a U-shaped encoder base, and the open end of the encoder base is arranged facing upward, and an encoder is arranged inside the open end of the encoder base.

[0008] In one embodiment of the present invention, the joint drive frame is a U-shaped drive frame, and the open end of the joint drive frame is arranged downward.

[0009] In one embodiment of the present invention, a limiting clamp is provided on the upper side of the test chamber along both sides of the joint to be tested. The movable end of the limiting clamp is pressed against the upper side of the positioning part of the joint to be tested to limit the displacement of the positioning part of the joint to be tested in the vertical direction.

[0010] In one embodiment of the present invention, a limiting base is provided on the upper side of the testing machine, the limiting groove is located in the limiting base, and the limiting base is detachably connected to the testing machine.

[0011] As described above, the rotary joint torque testing device of this utility model has the following beneficial effects: When a rotary joint needs to be tested for torque, the positioning part of the rotary joint is placed on the limiting groove, so that the limiting base falls into the limiting groove. Then, the limiting pin provided on the lower side of the limiting base extends into the limiting pin seat, so that the positioning part of the joint to be tested can be stably placed in the limiting groove, thereby limiting the rotation of the positioning part of the joint to be tested in the circumferential direction. The movable end of the limiting clamp is pressed against the upper side of the positioning part of the joint to be tested, thereby limiting the displacement of the positioning part of the joint to be tested in the vertical direction. When the torsional force is too large, the positioning part of the joint to be tested will move upward, while the limiting clamp can effectively prevent the positioning part of the joint to be tested from displacing in the axial direction, thereby ensuring the stability of the testing process. Attached Figure Description

[0012] Figure 1 The diagram shown is a structural schematic of the rotary joint torque testing device disclosed in an embodiment of this utility model.

[0013] Figure 2 The diagram shown is a schematic diagram of the joint drive frame structure of the rotary joint torque testing device disclosed in this embodiment of the present invention.

[0014] Figure 3 Displayed as Figure 2 A partial enlarged view of the figure marked A in the attached diagram.

[0015] Figure 4The diagram shown is a schematic diagram of the moving part of the rotary joint torque testing device disclosed in this embodiment of the present invention.

[0016] Explanation of technical feature labels in the attached drawings 1. Joint to be tested; 2. Positioning part; 3. Moving part; 4. Testing machine; 5. Testing chamber; 6. Limiting groove; 7. Limiting pin seat; 8. Limiting base; 9. Joint drive component; 10. Drive shaft; 11. Joint drive frame; 12. Joint drive seat; 13. Auxiliary shaft; 14. Coupling; 15. Encoder seat; 16. Encoder; 17. Limiting clamp; 18. Limiting base. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0018] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0019] Please see Figures 1 to 4This utility model provides a rotary joint torque testing device, including a joint to be tested 1 comprising a positioning part 2 and a movable part 3. A test chamber 5 is provided on the upper side of the testing machine 4, and a limiting groove 6 is provided on the upper side of the test chamber 5 to support the positioning part 2 of the joint to be tested 1. A limiting pin seat 7 is arranged circumferentially within the limiting groove 6. A limiting base 8 is provided below the positioning part 2 of the joint to be tested 1. When a torque test is required on the rotary joint, the positioning part 2 of the rotary joint is placed on the limiting groove 6, so that the limiting base 8... The joint 1 is placed in the limiting groove 6, and then the limiting pin provided on the lower side of the limiting base 8 extends into the limiting pin seat 7, so that the positioning part 2 of the joint 1 under test can be stably placed in the limiting groove 6, thereby restricting the rotation of the positioning part 2 of the joint 1 under test in the circumferential direction. The test machine 4 is provided with a joint drive 9, and the output end of the joint drive 9 is provided with a drive shaft 10 connected to the movable part 3 of the joint 1 under test, so as to drive the movable part 3 of the joint 1 under test to rotate relative to the positioning part 2 of the joint 1 under test, thereby completing the torsion test.

[0020] The test chamber 5 is equipped with a joint drive frame 11. A joint drive seat 12 is provided between the upper side of the joint drive frame 11 and the movable part 3 of the joint to be tested 1. The joint drive frame 11 supports the joint drive seat 12. A rotatable auxiliary shaft 13 is provided inside the joint drive seat 12 to improve the driving stability of the auxiliary shaft 13, thereby ensuring the driving reliability of the movable part 3 of the test joint. A coupling 14 is provided between the lower side of the auxiliary shaft 13 and the drive shaft 10 to ensure the connection reliability between the auxiliary shaft 13 and the drive shaft 10.

[0021] An encoder 15 is installed in the test chamber 5 on the lower side of the joint drive frame 11. An encoder 16 is installed in the encoder 15. The drive shaft 10 passes through the encoder 16 and is connected to the auxiliary shaft 13. The encoder 16 is used to record the rotation information of the drive shaft 10, and then, in conjunction with the drive information of the joint drive component 9, torque test data is obtained.

[0022] The encoder base 15 is a U-shaped encoder base 15, and the open end of the encoder base 15 is set upward. The encoder 16 is located inside the open end of the encoder base 15. The U-shaped encoder base 15 can improve the support stability of the encoder 16 and the convenience of assembling the encoder 16.

[0023] The joint drive frame 11 is a U-shaped drive frame, and the open end of the joint drive frame 11 is arranged downward. The joint drive seat 12 is arranged on the upper side of the joint drive frame 11, which can ensure the reliability of the support for the joint drive seat 12.

[0024] Limiting clamps 17 are provided on the upper part of the test chamber 5 along both sides of the joint to be tested 1. The movable end of the limiting clamp 17 presses against the upper side of the positioning part 2 of the joint to be tested 1 to limit the displacement of the positioning part 2 of the joint to be tested 1 in the vertical direction. When the torsional force is too large, the positioning part 2 of the joint to be tested 1 will move upward. The limiting clamp 17 can effectively prevent the positioning part 2 of the joint to be tested 1 from moving in the axial direction, thereby ensuring the stability of the test process.

[0025] The upper side of the test machine 4 is provided with a limiting base 18, the limiting groove 6 is located in the limiting base 18, and the limiting base 18 is detachably connected to the test machine 4. When it is necessary to test different models of rotary joints, the limiting base 18 can be removed and replaced with other models of limiting base 18 to meet the testing requirements.

[0026] When performing a torque test on a rotary joint, this invention places the positioning part of the rotary joint on the limiting groove, allowing the limiting base to fall within the limiting groove. Then, a limiting pin located on the lower side of the limiting base extends into the limiting pin seat, ensuring that the positioning part of the joint under test can be stably positioned within the limiting groove, thus restricting the circumferential rotation of the positioning part. The movable end of the limiting clamp presses against the upper side of the positioning part of the joint under test, restricting its vertical displacement. When the torsional force is too large, the positioning part of the joint under test may move upwards, but the limiting clamp effectively prevents axial displacement of the positioning part, thereby ensuring the stability of the testing process.

[0027] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A rotary joint torque testing device, characterized in that, include: The joint to be tested includes a positioning part and a movable part; A testing machine has a testing chamber on its upper side, and a limiting groove on the upper side of the testing chamber to support the positioning part of the joint to be tested. A limiting pin seat is arranged circumferentially within the limiting groove, and a limiting base is provided below the positioning part of the joint to be tested. A limiting pin is provided on the lower side of the limiting base, extending into the limiting pin seat, to restrict the positioning part of the joint to be tested from rotating circumferentially. A joint drive component is provided inside the testing machine, and a drive shaft is provided at the output end of the joint drive component, which is connected to the movable part of the joint to be tested, so as to drive the movable part of the joint to be tested to rotate relative to the positioning part of the joint to be tested.

2. The rotary joint torque testing device according to claim 1, characterized in that, The test chamber is equipped with a joint drive frame. A joint drive seat is provided between the upper side of the joint drive frame and the movable part of the joint to be tested. A rotatable auxiliary shaft is provided inside the joint drive seat. A coupling is provided between the lower side of the auxiliary shaft and the drive shaft.

3. The rotary joint torque testing device according to claim 2, characterized in that, An encoder is installed in the test chamber on the lower side of the joint drive frame, and an encoder is installed in the encoder. The drive shaft passes through the encoder and is connected to the auxiliary shaft.

4. The rotary joint torque testing device according to claim 3, characterized in that, The encoder base is a U-shaped encoder base, and the open end of the encoder base is set upwards, with the encoder located inside the open end of the encoder base.

5. The rotary joint torque testing device according to claim 1, characterized in that, The joint drive frame is a U-shaped drive frame, and the open end of the joint drive frame is arranged downwards.

6. The rotary joint torque testing device according to claim 1, characterized in that, Limiting clamps are provided on the upper part of the test chamber along both sides of the joint to be tested. The movable end of the limiting clamps presses against the upper side of the positioning part of the joint to be tested to limit the displacement of the positioning part of the joint to be tested in the vertical direction.

7. The rotary joint torque testing device according to claim 1, characterized in that, The upper side of the testing machine is provided with a limiting base, the limiting groove is located in the limiting base, and the limiting base is detachably connected to the testing machine.

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