Mechanical structure of a robot reducer transmission accuracy testing machine

Abstract

This utility model discloses a mechanical structure for testing the transmission accuracy of a robot reducer, relating to the field of reducer technology. It includes a protective housing, an output angle encoder body, a reducer body, and a control housing. A control sleeve is fixedly connected to the inner wall of the control housing, and a linkage force-applying disc is rotatably connected to the outer circumference of the control sleeve. A linkage cam is installed in a guide groove on the linkage force-applying disc, and one end of the linkage cam is rotatably connected to one side of a mounting plate. The mounting plate is slidably connected to the control housing. This application, through the arrangement of the control housing, control sleeve, linkage force-applying disc, guide groove, linkage cam, mounting plate, planar worm gear ring, one-way worm, and external turntable, can effectively accommodate different reducer output diameters, solving the problem of the limited application scenarios of the output angle encoder, greatly enhancing practicality, and achieving convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a mechanical structure for a robot speed reducer transmission accuracy testing machine. Background Technology

[0002] A speed reducer is a mechanical device used to reduce the output speed of a high-speed rotating electric motor or engine while increasing its torque. It is widely used in various industrial fields such as machine tools, power generation, metallurgy, and chemicals. The main function of a speed reducer is to convert the high-speed rotation of a prime mover into the low-speed rotation required by the working machine, and to amplify the torque to meet the needs of different equipment.

[0003] In the scenario of testing the transmission accuracy of reducers, it is common to connect the output end of the reducer to the shaft of the output angle encoder via a coupling. Most standard couplings (such as rigid couplings and flexible swivel couplings) are adapted to shafts of the same diameter by default. Therefore, the diameter of the reducer output end and the diameter of the output angle encoder shaft must be consistent, which makes it difficult to cope with different reducer output end diameters. This makes the output angle encoder highly limited and its application scenarios relatively simple. To address this issue, we provide a mechanical structure for a robot reducer transmission accuracy testing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical structure for a robot reducer transmission accuracy testing machine to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical structure for a robot reducer transmission accuracy testing machine, comprising a protective shell, an output angle encoder body, a reducer body, and a control shell. A control sleeve is fixedly connected to the inner wall of the control shell. A linkage force-applying disc is rotatably connected to the outer circumferential surface of the control sleeve. A linkage cam is provided within a guide groove on the linkage force-applying disc. One end of the linkage cam is rotatably connected to one side of a mounting plate. The mounting plate is slidably connected to the control shell. A planar worm gear ring is fixedly connected to the outer circumferential surface of the linkage force-applying disc. The teeth on the outer circumferential surface of the planar worm gear ring mesh with the threads on the outer circumferential surface of a one-way worm. The tight fit between the components effectively accommodates different reducer output diameters.

[0006] Preferably, the one-way worm gear is rotatably connected to the inner wall of the control housing, and an external turntable is fixedly connected to one end of the one-way worm gear. The external turntable facilitates driving the one-way worm gear to rotate.

[0007] Preferably, an encoder mounting base is fixedly connected to one side of the protective housing, and an output angle encoder body is installed on one side of the encoder mounting base. The output angle encoder body is existing technology and will not be described in detail.

[0008] Preferably, the output angle encoder body is fixedly connected to the output angle encoder shaft, and a control housing is fixedly connected to the outer circumferential surface of the output angle encoder shaft. The control housing can effectively protect its internal components, so that its internal components are not affected by external interference.

[0009] Preferably, the outer circumferential surface of the output angle encoder shaft is rotatably connected to the inner wall of the auxiliary support ring, and the auxiliary support ring is fixedly connected to the inner wall of the protective shell. The auxiliary support ring ensures stable rotation of the output angle encoder shaft.

[0010] Preferably, a reducer body is installed on the other side of the protective housing, and a flange coupling is installed at the output end of the reducer body via a flat key. The flange coupling is compatible with the reducer body, and the two need to be used together in this application.

[0011] Preferably, the bottom of the protective shell is fixedly connected to the upper surface of the base, and the base has a through hole. The base ensures the stability of the mechanical structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application, through the design of the control housing, control sleeve, linkage force plate, guide groove, linkage cam, mounting plate, planar worm gear ring, one-way worm, and external turntable, can effectively cope with the use of different reducer output end diameters, solve the problem of the relatively limited application scenarios of the output angle encoder, greatly enhance the practical effect, and achieve the purpose of convenient operation.

[0014] 2. This application, through the setting of a protective shell, output angle encoder body, reducer body, encoder mounting base, output angle encoder shaft, flat key, flange coupling parts, auxiliary support ring, and base, can effectively test the transmission accuracy of the reducer body. The operation and installation are simple and easy to learn. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the control housing of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the linkage force-applying disc of this utility model;

[0018] Figure 4 A three-dimensional structural diagram of the mounting plate of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the flange coupling parts of this utility model.

[0020] The following are the labels in the diagram: 1. Protective housing; 2. Output angle encoder body; 3. Reducer body; 4. Control housing; 5. Control sleeve; 6. Linkage force plate; 7. Guide groove; 8. Linkage cam; 9. Mounting plate; 10. Planar worm gear ring; 11. One-way worm; 12. External turntable; 13. Encoder mounting base; 14. Output angle encoder shaft; 15. Flat key; 16. Flange coupling parts; 17. Auxiliary support ring; 18. Base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution for the mechanical structure of a robot reducer transmission accuracy testing machine.

[0023] Please see Figure 1 It includes a protective housing 1, an output angle encoder body 2, a reducer body 3, and a control housing 4. The bottom of the protective housing 1 is fixedly connected to the upper surface of the base 18. The base 18 has a through hole. The purpose of setting the base 18 is to ensure the stability of the overall structure and prevent tilting.

[0024] Please see Figure 1 and Figure 5 On the other side of the protective housing 1, the reducer body 3 is installed. The reducer body 3 is existing technology, and this application will not elaborate on the model of the reducer body 3. The output end of the reducer body 3 is equipped with a flange coupling part 16 via a flat key 15. The purpose of setting the flat key 15 is to drive the flange coupling part 16 to rotate stably without slippage. The flange coupling part 16 is compatible with the reducer body 3. When it is necessary to test the transmission accuracy of the reducer body 3, it is only necessary to remove the reducer body 3 together with the flat key 15 and the flange coupling part 16, and then install it on the structure of this application for testing.

[0025] Please see Figure 1 The output angle encoder body 2 is fixedly connected to the output angle encoder shaft 14. The output angle encoder body 2 and the output angle encoder shaft 14 are in a direct connection state, and the two maintain the linkage effect. The output angle encoder body 2 is the existing disclosed technology, and this application will not elaborate on the output angle encoder body 2.

[0026] Please see Figure 1 The outer circumferential surface of the output angle encoder shaft 14 is rotatably connected to the inner wall of the auxiliary support ring 17. The purpose of setting the auxiliary support ring 17 is to effectively support the output angle encoder shaft 14 and apply a control effect, so as to ensure that the output angle encoder shaft 14 can rotate more stably. The auxiliary support ring 17 is fixedly connected to the inner wall of the protective housing 1.

[0027] Please see Figure 1 The outer circumferential surface of the output angle encoder shaft 14 is fixedly connected to the control housing 4. The output angle encoder shaft 14 and the control housing 4 are directly connected and maintain the linkage effect. The encoder mounting base 13 is fixedly connected to one side of the protective housing 1. The output angle encoder body 2 is installed on one side of the encoder mounting base 13. The purpose of setting the encoder mounting base 13 is to install the output angle encoder body 2 mainly by screws.

[0028] Please see Figure 2 and Figure 3 The inner wall of the control housing 4 is fixedly connected to the control sleeve 5. The control housing 4 and the control sleeve 5 are integrated. The outer circumferential surface of the control sleeve 5 is rotatably connected to the linkage force plate 6. The purpose of setting the control sleeve 5 is to effectively apply the control effect to the linkage force plate 6, so that the linkage force plate 6 rotates about the control sleeve 5 as the axis.

[0029] Please see Figure 2 and Figure 3 A linkage cam 8 is provided in the guide groove 7 of the linkage force application plate 6. When the linkage cam 8 is restricted, the rotation of the linkage force application plate 6 can cause the position of the linkage cam 8 to be translated under the design of the guide groove 7.

[0030] Please see Figure 2 , Figure 3 and Figure 4 One end of the linkage cam 8 is rotatably connected to one side of the mounting plate 9. The mounting plate 9 will apply a control effect to the linkage cam 8 to ensure that the linkage cam 8 can rotate in place. The mounting plate 9 is slidably connected to the control housing 4. The control housing 4 will apply a control effect to the mounting plate 9 to ensure that the mounting plate 9 can translate in a specified direction within the control housing 4.

[0031] Please see Figure 2 A planar worm gear ring 10 is fixedly connected to the outer circumference of the linkage force-applying disk 6. The linkage force-applying disk 6 and the planar worm gear ring 10 are integrated into one piece, maintaining a linkage effect. The teeth on the outer circumference of the planar worm gear ring 10 mesh with the threads on the outer circumference of the one-way worm 11. The cooperation between the planar worm gear ring 10 and the one-way worm 11 can effectively achieve the force transmission effect and has a self-locking effect, ensuring the stability of the component after movement.

[0032] Please see Figure 2 The one-way worm gear 11 is rotatably connected to the inner wall of the control housing 4. The control housing 4 applies a control effect to the one-way worm gear 11, ensuring that the one-way worm gear 11 can rotate in place within the control housing 4. One end of the one-way worm gear 11 is fixedly connected to an external turntable 12. The purpose of setting the external turntable 12 is to facilitate the rotation of the one-way worm gear 11 by the operator.

[0033] Working principle: In use, the reducer body 3 is installed on one side of the protective housing 1, and the matching flange coupling part 16 is sleeved on the flat key 15. At this time, according to the actual position of the hole of the flange coupling part 16, the external turntable 12 is manually rotated, causing the one-way worm gear 11 to rotate inside the control housing 4. Because the linkage force-applying plate 6, which is connected to the planar worm wheel ring 10, will rotate around the control sleeve 5, the one-way worm gear 11 can drive the linkage force-applying plate 6 to rotate outside the control sleeve 5 through the planar worm wheel ring 10. Furthermore, because the mounting plate 9, which is connected to the linkage cam 8, is restricted by the control housing 4, With the rotation of the linkage force-applying plate 6 under the arc design of the guide groove 7, the linkage cam 8 drives the mounting plate 9 to translate, thereby making the three mounting plates 9 move synchronously, so that the holes of the mounting plates 9 correspond to the actual holes of the flange coupling parts 16. Then, the installation is completed by tightening the bolts. Then, the output angle encoder body 2, reducer body 3, etc. are connected to the external test software system through the wire. The test software system sends the rotation angle value to the reducer body 3. After the mechanical structure of this application transmits the transmission, it outputs an angle value. The difference between the two is the transmission error, that is, the transmission accuracy.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mechanical structure for a robot reducer transmission accuracy testing machine, comprising a protective housing (1), an output angle encoder body (2), a reducer body (3), and a control housing (4), characterized in that: The inner wall of the control housing (4) is fixedly connected to the control sleeve (5), and the outer circumferential surface of the control sleeve (5) is rotatably connected to the linkage force plate (6). The guide groove (7) of the linkage force plate (6) is provided with a linkage cam (8). One end of the linkage cam (8) is rotatably connected to one side of the mounting plate (9). The mounting plate (9) is slidably connected to the control housing (4). The outer circumferential surface of the linkage force plate (6) is fixedly connected to the planar worm gear ring (10). The teeth on the outer circumferential surface of the planar worm gear ring (10) mesh with the threads on the outer circumferential surface of the one-way worm (11).

2. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 1, characterized in that: The one-way worm gear (11) is rotatably connected to the inner wall of the control housing (4), and an external turntable (12) is fixedly connected to one end of the one-way worm gear (11).

3. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 1, characterized in that: An encoder mounting base (13) is fixedly connected to one side of the protective housing (1), and an output angle encoder body (2) is installed on one side of the encoder mounting base (13).

4. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 1, characterized in that: The output angle encoder body (2) is fixedly connected to the output angle encoder shaft (14), and the outer circumferential surface of the output angle encoder shaft (14) is fixedly connected to the control housing (4).

5. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 4, characterized in that: The outer circumferential surface of the output angle encoder shaft (14) is rotatably connected to the inner wall of the auxiliary support ring (17), and the auxiliary support ring (17) is fixedly connected to the inner wall of the protective shell (1).

6. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 1, characterized in that: The reducer body (3) is installed on the other side of the protective housing (1), and the output end of the reducer body (3) is equipped with a flange coupling part (16) via a flat key (15).

7. The mechanical structure of the robot reducer transmission accuracy testing machine according to claim 1, characterized in that: The bottom of the protective shell (1) is fixedly connected to the upper surface of the base (18), and the base (18) has a through hole.

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