Industrial robot transmission part with good centering performance

By introducing a two-way telescopic rod and spring structure installation component into the industrial robot transmission parts, combined with a flat key and thermal expansion slot design, the problems of poor centering of the transmission parts and cumbersome installation are solved, achieving higher precision and longer service life while improving production efficiency.

CN223354268UActive Publication Date: 2025-09-19HOUZUO (HEBEI) ENVIRONMENTAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422842782.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-09-19
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

The centering performance of existing industrial robot transmission parts is poor, which affects accuracy and service life. In addition, the installation process is cumbersome, resulting in low production efficiency.

Method used

The installation assembly adopts a two-way telescopic rod and spring structure, combined with a flat key and thermal expansion slot design, to achieve fast and stable installation and improved centering of the transmission rod. The transmission is achieved by the motor driving the active wheel and the driven wheel to engage.

Benefits of technology

It improves the centering and installation stability of the transmission parts, enhances the robot processing accuracy, reduces wear, extends the service life, simplifies the installation process, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of industrial robots, and particularly relates to an industrial robot transmission part with better centering performance, which comprises a transmission rod II, and a mounting component is arranged at one end of the transmission rod II; the mounting assembly comprises a bidirectional telescopic rod, and the bidirectional telescopic rod penetrates through the side wall of one end of the second transmission rod. When the first transmission rod and the second transmission rod need to be installed, the end, provided with the installation groove, of the second transmission rod abuts against the first transmission rod, the diameter of the second transmission rod is smaller than that of the first transmission rod, the second transmission rod is inserted into the first transmission rod, the spring is extruded, and the threaded strip extrudes the bidirectional telescopic rod and slides on the inner wall of the first transmission rod; when the threaded strip slides to the limiting hole in the periphery of the first transmission rod, the threaded strip rebounds under the counter-acting force of the spring and penetrates through the limiting hole in the periphery of the first transmission rod to form rapid installation, and at the moment, the gasket and the nut are in threaded connection with the threaded strip to form limiting, so that the installation stability is improved, and falling is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of industrial robots, in particular to an industrial robot transmission part with good centering performance. Background Art

[0002] Industrial robots are machines that automatically perform tasks. Controlled by pre-set programs or artificial intelligence systems, they perform various production line operations, such as assembly, welding, painting, and handling. They have become an indispensable component of modern manufacturing. They not only improve production efficiency but also reduce labor costs, playing an irreplaceable role in certain high-risk or difficult operations. The transmission components of industrial robots are the key components connecting the power source and the kinematic linkages, primarily providing the motive force for the movement of the robot's various parts and joints. These transmission components can be hydraulic, pneumatic, or electric drive systems, or a combination of these. They are driven directly or indirectly by mechanical transmission mechanisms such as synchronous belts, chains, gear trains, and harmonic gears.

[0003] Existing industrial robot transmission components suffer from poor centering, which directly impacts the accuracy of the industrial robot. If the transmission components fail to maintain a stable centering state during operation, the robot's end effector will deviate from its position, affecting assembly or machining accuracy. Poor centering also exacerbates wear on the transmission system and shortens the robot's service life. Furthermore, the existing installation process for transmission components is cumbersome, extending installation time and reducing work efficiency. The installation of industrial robot transmission components typically requires on-line installation, and these tedious installation steps can take significant time, leading to extended production line downtime. This not only impacts production schedules but can also increase production costs.

[0004] It should be noted that the above content belongs to the technical knowledge of the inventor and does not necessarily constitute prior art. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides an industrial robot transmission component with better centering performance, which solves the current problems.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an industrial robot transmission component with good centering performance, comprising a second transmission rod, wherein one end of the second transmission rod is provided with a mounting assembly;

[0007] The mounting assembly includes a two-way telescopic rod, which passes through the side wall of one end of the transmission rod 2, and a mounting groove is provided at one end of the transmission rod 2. The two-way telescopic rod passes through the two side walls of the mounting groove, and springs are sleeved on the outer periphery of both ends of the two-way telescopic rod. Both ends of the two-way telescopic rod are fixedly connected with threaded strips, and the transmission rod 1 is installed at one end of the transmission rod 2 close to the mounting groove, and the threaded strip passes through the side wall of the transmission rod 1 close to the side of the transmission rod 2, and a positioning assembly is provided on the outer periphery of the transmission rod 1.

[0008] As a preferred technical solution of the present invention, the positioning assembly includes a flat key, which is fixedly connected to the outer periphery of the transmission rod 1, and a driven wheel is sleeved on the outer periphery of the transmission rod 1.

[0009] As a preferred technical solution of the present invention, the flat key is engaged with a groove provided in the middle of the driven wheel.

[0010] As a preferred technical solution of the present invention, a gasket is sleeved on the outer periphery of the threaded strip, and a nut is threadedly connected to the outer periphery of the threaded strip.

[0011] As a preferred technical solution of the present invention, a thermal expansion groove is provided on the inner wall of one end of the transmission rod 2 close to the installation groove.

[0012] As a preferred technical solution of the present invention, a driving wheel is provided on one side of the driven wheel, and the driving wheel is meshed with the driven wheel.

[0013] As a preferred technical solution of the present invention, a motor is provided on one side of the transmission rod, and the output end of the motor is fixedly connected to the driving wheel.

[0014] Compared with the prior art, the present invention provides an industrial robot transmission component with better centering performance, which has the following beneficial effects:

[0015] 1. This is an industrial robot transmission part with good centering performance. When the transmission rod 1 and the transmission rod 2 need to be installed, the end of the transmission rod 2 with the installation groove is abutted against the transmission rod 1. The diameter of the transmission rod 2 is smaller than that of the transmission rod 1. The transmission rod 2 is inserted into the interior of the transmission rod 1. The spring is squeezed, so that the threaded bar squeezes the bidirectional telescopic rod and slides on the inner wall of the transmission rod 1. When it slides to the limiting hole on the outer periphery of the transmission rod 1, the threaded bar rebounds under the reaction force of the spring and penetrates the limiting hole on the outer periphery of the transmission rod 1, forming a quick installation. At this time, the gasket and the nut are threadedly connected to the threaded bar to form a limit, which improves the stability of the installation and prevents it from falling off.

[0016] 2. This industrial robot transmission part has good centering performance. By opening a slot hole on the transmission rod and setting a flat key, a slot that can be engaged with the flat key is opened at the position where the middle part of the driven wheel is connected to the transmission rod. The flat key is connected to it, which can improve the centering performance of the transmission rod and the processing accuracy of the robot without aggravating the wear of the transmission system and shortening the service life of the robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the flat key structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the thermal expansion slot structure of the utility model;

[0020] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0021] In the figure: 1. Transmission rod 1; 2. Transmission rod 2; 3. Driven pulley; 4. Driving pulley; 5. Motor; 6. Flat key; 7. Threaded strip; 8. Nut; 9. Gasket; 10. Thermal expansion groove; 11. Two-way telescopic rod; 12. Spring; 13. Mounting groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] refer to Figure 1 、 Figure 3 and Figure 4 In this embodiment: an industrial robot transmission member with good centering performance includes a transmission rod 2, and a mounting assembly is provided at one end of the transmission rod 2;

[0024] The mounting assembly includes a two-way telescopic rod 11, which passes through the side wall of one end of the transmission rod 2, and a mounting groove 13 is provided at one end of the transmission rod 2. The two-way telescopic rod 11 passes through the two side walls of the mounting groove 13, and springs 12 are sleeved on the outer periphery of both ends of the two-way telescopic rod 11. Both ends of the two-way telescopic rod 11 are fixedly connected with a threaded strip 7, and the transmission rod 1 is installed at the end of the transmission rod 2 2 close to the mounting groove 13. The threaded strip 7 passes through the side wall of the transmission rod 1 close to the side of the transmission rod 2 2, and a positioning assembly is provided on the outer periphery of the transmission rod 1.

[0025] Specifically, when the transmission rod 1 and the transmission rod 2 2 need to be installed, the end of the transmission rod 2 2 with the installation groove 13 is abutted against the transmission rod 1. The diameter of the transmission rod 2 2 is smaller than that of the transmission rod 1. The transmission rod 2 2 is inserted into the interior of the transmission rod 1. The spring 12 is squeezed, so that the threaded strip 7 squeezes the bidirectional telescopic rod 11 and slides on the inner wall of the transmission rod 1. When it slides to the limiting hole on the periphery of the transmission rod 1 (not shown in the figure), the threaded strip 7 rebounds under the reaction force of the spring 12 and penetrates the limiting hole on the periphery of the transmission rod 1, forming a quick installation. At this time, the gasket 9 and the nut 8 are threadedly connected to the threaded strip 7 to form a limit, which improves the stability of the installation and prevents it from falling off.

[0026] refer to Figure 1 and Figure 2 In this embodiment, the positioning assembly includes a flat key 6, which is fixedly connected to the outer periphery of the transmission rod 1, and the outer periphery of the transmission rod 1 is sleeved with a driven wheel 3.

[0027] Specifically, by opening a slot on the transmission rod 1, setting a flat key 6, and opening a slot that can be engaged with the flat key 6 at the position where the middle part of the driven wheel 3 is engaged with the transmission rod 1, and engaging the flat key 6 with it, the centering of the transmission rod 1 can be improved, the processing accuracy of the robot can be improved, and the wear of the transmission system will not be aggravated, and the service life of the robot will not be shortened.

[0028] refer to Figure 1 and Figure 3 In this embodiment, the flat key 6 is engaged with the groove opened in the middle of the driven wheel 3, the outer periphery of the threaded strip 7 is sleeved with a gasket 9, the outer periphery of the threaded strip 7 is threadedly connected with a nut 8, and a thermal expansion groove 10 is opened on the inner wall of one end of the transmission rod 2 near the installation groove 13. A driving wheel 4 is provided on one side of the driven wheel 3, and the driving wheel 4 is meshed with the driven wheel 3. A motor 5 is provided on one side of the transmission rod 1, and the output end of the motor 5 is fixedly connected to the driving wheel 4.

[0029] Specifically, the function of the nut 8 is to limit the threaded bar 7 to prevent it from sliding. The function of the gasket 9 is to assist the nut 8 to make its limitation on the threaded bar 7 more stable. The function of the thermal expansion groove 10 is to allow the transmission parts of the industrial robot to have expansion space when they are used at higher temperatures and thermally expand, thereby reducing the impact of the transmission part connection under thermal expansion conditions, making the transmission part connection more stable when used under thermal expansion conditions. The motor 5 drives the driving wheel 4 to rotate, thereby driving the driven wheel 3 to rotate to realize the rotation of the transmission rod 1 and the transmission rod 2 2.

[0030] When the lever 1 is in the unlocked position, the spring 12 is engaged with the spring 13 and the spring 14 is engaged with the lever 1, and the spring 12 is engaged with the lever 1, so that the lever 1 is in the unlocked position.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An industrial robot transmission component with good centering performance, comprising a transmission rod 2 (2), characterized in that: One end of the second transmission rod (2) is provided with a mounting assembly; The mounting assembly comprises a bidirectional telescopic rod (11), the bidirectional telescopic rod (11) passing through the side wall of one end of the transmission rod 2 (2), a mounting groove (13) being provided at one end of the transmission rod 2 (2), the bidirectional telescopic rod (11) passing through the two side walls of the mounting groove (13), a spring (12) being sleeved on the outer periphery of both ends of the bidirectional telescopic rod (11), both ends of the bidirectional telescopic rod (11) being fixedly connected with a threaded bar (7), a transmission rod 1 (1) being installed at one end of the transmission rod 2 (2) close to the mounting groove (13), the threaded bar (7) passing through the side wall of the transmission rod 1 (1) close to the side of the transmission rod 2 (2), and a positioning assembly being provided on the outer periphery of the transmission rod 1 (1).

2. The industrial robot transmission component with good centering performance according to claim 1, characterized in that: The positioning assembly comprises a flat key (6), the flat key (6) being fixedly connected to the outer periphery of the transmission rod (1), and the outer periphery of the transmission rod (1) is sleeved with a driven wheel (3).

3. The industrial robot transmission component with good centering performance according to claim 2, characterized in that: The flat key (6) is engaged with a groove provided in the middle of the driven wheel (3).

4. The industrial robot transmission component with good centering performance according to claim 1, characterized in that: A gasket (9) is sleeved on the outer periphery of the threaded strip (7), and a nut (8) is threadedly connected to the outer periphery of the threaded strip (7).

5. The industrial robot transmission component with good centering performance according to claim 1, characterized in that: A thermal expansion groove (10) is provided on the inner wall of one end of the transmission rod (2) close to the installation groove (13).

6. The industrial robot transmission component with good centering performance according to claim 2, characterized in that: A driving wheel (4) is provided on one side of the driven wheel (3), and the driving wheel (4) is meshed with the driven wheel (3).

7. The industrial robot transmission component with good centering performance according to claim 6, characterized in that: A motor (5) is provided on one side of the transmission rod (1), and an output end of the motor (5) is fixedly connected to the driving wheel (4).