A precision bearing for industrial robots

Abstract

This invention discloses a precision bearing for industrial robots, relating to the field of bearing technology. It includes a bearing mechanism with a lubrication mechanism on one side, an elastic support mechanism on the inner side of the lubrication mechanism, and an installation mechanism on the inner side of the elastic support mechanism. The invention uses a connecting bend pipe fixed to the inner side of a lubricating oil storage box, with a miniature delivery pump connected to one end of the bend pipe. The miniature delivery pump draws out lubricating oil, which is then evenly distributed and delivered to a right-angle delivery pipe via a connecting ring. The right-angle delivery pipe then delivers the lubricating oil to a spray head, where it is atomized and sprayed from atomizing nozzles. This facilitates the even spraying of lubricating oil onto the inner ring and rolling elements, achieving a wide-area spray lubrication effect. This results in high-efficiency self-lubrication, ensuring stable high-speed bearing operation and improving bearing stability and reliability.

Description

Technical Field

[0001] This invention relates to the field of bearing technology, specifically to a precision bearing for industrial robots. Background Technology

[0002] Industrial robots play a vital role in modern manufacturing, and their performance directly impacts production efficiency and product quality. Bearings, as key components of industrial robots, have a decisive influence on critical performance indicators such as operational smoothness, repeatability, motion accuracy, and operational reliability. Industrial robot bearings mainly include thin-walled bearings, crossed cylindrical roller bearings, harmonic reducer bearings, and spherical plain bearings, but crossed roller bearings are the most common. The structural characteristics of crossed roller bearings in welding robot joints are as follows: cylindrical rollers are arranged perpendicularly and crosswise within the inner and outer raceways of the bearing, allowing a single bearing to simultaneously withstand radial force, bidirectional axial force, and overturning moment. These bearings offer high load-bearing capacity, good rigidity, high rotational accuracy, easy installation, space saving, weight reduction, significantly reduced friction, and excellent rotational precision.

[0003] In the prior art, such as the patent application CN202020348564.5 entitled "A Precision Bearing for Industrial Robots," a bearing includes an outer ring and an inner ring. The outer ring has a V-groove and a rectangular groove on its inner side. The inner ring is divided into a mounting part and a fixing part. The mounting part also has a V-groove corresponding to the outer ring, forming a roller mounting cavity with the V-groove of the outer ring. A roller is placed inside the roller housing cavity. A self-tightening oil seal mounting cavity is formed between the end of the mounting part of the inner ring and the rectangular groove of the inner ring, and a self-tightening oil seal is placed inside the self-tightening oil seal mounting cavity. This utility model provides a precision bearing for industrial robots. By connecting the fixing part to the outer ring via rollers, the bearing wall is made as thin as possible, achieving miniaturization and weight reduction. A skeleton oil seal is provided between the end of the mounting part of the inner ring and the rectangular groove of the outer ring, resulting in better sealing and preventing oil leakage. Lubricating oil is added through an oil inlet mechanism, making it more convenient to use.

[0004] Existing bearings have poor lubrication performance, which generates significant friction and heat during long-term high-speed operation. This not only increases energy consumption but also accelerates bearing wear, potentially further reducing reliability. To address these issues, a precision bearing for industrial robots is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a precision bearing for industrial robots, which solves the problem that the lubrication performance of the bearings in the prior art is poor during operation. During long-term high-speed operation, the bearings generate a lot of friction and heat, which not only increases energy consumption but also accelerates bearing wear, thus further reducing their reliability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision bearing for industrial robots, comprising a bearing mechanism, a lubrication mechanism on one side of the bearing mechanism, an elastic support mechanism on the inner side of the lubrication mechanism, and an installation mechanism on the inner side of the elastic support mechanism. The lubrication mechanism includes an outer ring, an oil storage box on the inner side of the outer ring, a connecting bend fixedly connected to the inner side of the oil storage box, a miniature delivery pump fixedly connected to one end of the connecting bend, a connecting ring fixedly connected to the miniature delivery pump, a plurality of right-angle delivery pipes evenly distributed on the connecting ring, a spray head fixedly connected to one end of the right-angle delivery pipes, a plurality of atomizing nozzles evenly distributed in a ring on the spray head, the outer ring being fixed to one side of a single side cover ring to form a stable installation, and a padding ring on the inner side pressing against the outer side of the oil storage box to facilitate the installation of the oil storage box and simultaneously improve... To provide a certain degree of buffering and shock absorption, reducing the impact of vibration, the feed inlet is located on the lubricating oil storage box, facilitating the addition of lubricating oil. A sealing plug provides a sealing and blocking effect to prevent lubricating oil leakage. A connecting elbow is fixedly connected to the inside of the lubricating oil storage box, with a miniature delivery pump connected to one end. The miniature delivery pump draws out the lubricating oil, which is then evenly distributed through a connecting ring to a right-angle delivery pipe. From there, the lubricating oil is delivered to the spray head and atomized by the atomizing nozzles. This ensures the lubricating oil is evenly sprayed onto the inner ring and rolling elements, achieving a wide-area spray lubrication effect. This facilitates high-efficiency self-lubrication, ensuring stable high-speed bearing operation, improving bearing stability and reliability, and preventing increased bearing wear due to increased friction and temperature.

[0007] The bearing mechanism includes an outer ring body with side cover rings on both sides. Several right-angle conveying pipes pass through the sides of the side cover rings. Spray heads are distributed in the gaps on the sides of the side cover rings. The outer ring body provides mounting support on the outside and cooperates with the inner ring body on the inside, with several rolling elements distributed at the connection gap. The rolling elements provide rotation. The side cover rings are symmetrically arranged on both sides of the outer ring body to provide a sealing function, thereby ensuring the stable operation of the bearing.

[0008] Preferably, the elastic support mechanism includes a mounting ring, with a plurality of mounting seats evenly distributed on the outer wall of the mounting ring. A spring is provided in the middle of the mounting seat, and elastic damping rods are symmetrically arranged on the outer side of the mounting seat. The elastic damping rods are located on the side of the spring and are fixed to the outer side of the inner ring body by the mounting ring. A plurality of mounting seats are distributed on the outer side of the mounting ring to facilitate stable connection and installation. The spring is connected and installed by the mounting seats, and the elastic damping rods are installed at both ends of the mounting seats. Rotary seats are provided at both ends of the elastic damping rods for rotation.

[0009] Preferably, the spring is provided with a rotating shaft at both ends, the elastic damping rod is provided with a rotating seat at both ends, a spring is provided on the outer side of the elastic damping rod, the mounting seat connects and installs the spring, and forms a rotating connection with the rotating shaft. The outer wall of the elastic damping rod is sleeved with a spring to form an elastic support, which is beneficial to provide a buffering and shock-absorbing flexible support for the outer ring, and avoids the problem of inconvenience caused by excessive vibration amplitude during operation.

[0010] Preferably, the installation mechanism includes mounting fasteners, with connecting blocks on the outer side of the mounting fasteners and symmetrically arranged limit strips on the inner side of the mounting fasteners. The mounting fasteners are distributed on the inner side of the side cover plate, and the mounting ring is provided with connecting blocks, which facilitates the fastening of the connecting blocks onto the limit grooves opened on the inner side of the inner support ring, forming a stable fastening and fixing effect. At the same time, the mounting fasteners are provided with limit strips to ensure stable installation.

[0011] Preferably, an inner support groove is provided between the two limiting strips, and an inner support ring is fitted inside the inner side of the inner support groove. The inner support ring is fitted and connected to the inner side of the mounting fastener. The inner support groove facilitates the embedding and installation of the inner support ring inside the inner support groove to form an inner support, thereby ensuring that the side cover plate is stably installed on the side of the outer ring. This provides a certain degree of protection for the lubricating oil storage box and also facilitates quick disassembly, improving the convenience of operation.

[0012] Preferably, a support ring is provided on the inner side of the outer ring, and the support ring is sleeved on the outer side of the lubricating oil storage box. A feed port is opened on one side of the lubricating oil storage box, and a sealing plug is connected to the inner side of the feed port. A control box is installed on the side of the micro conveying pump. The support ring provides support to reduce impact force, the feed port provides the position for lubricating oil injection, the sealing plug facilitates sealing of the feed port, and the control box facilitates control.

[0013] Preferably, a side cover plate is installed on one side of the outer ring, and a through hole is provided on the side of the side cover plate. A protective ring is provided on one side of the side cover plate, which is connected to the side of the outer ring to provide a sealing function. The through hole facilitates easy disassembly of the sealing plug. The protective ring on the side of the side cover plate helps to improve the strength of the side cover plate and ensure safety.

[0014] Preferably, an inner ring body is connected to the inner side of the side cover ring, and an inner support ring body is fixedly installed on one side of the inner ring body. The inner side of the inner support ring body is provided with several limiting grooves, so that the inner support ring body is placed in the inner ring body and fixed, which facilitates the cooperation with the outer ring to provide installation space for the lubricating oil storage box.

[0015] Preferably, a positioning ring groove is fixedly installed on one side of the side cover ring, and a number of rolling elements are evenly distributed in a ring between the two positioning ring grooves. The positioning ring groove installed on the side of the side cover ring facilitates the positioning of the rolling elements, preventing them from falling off during rotation and ensuring stable use.

[0016] Preferably, the outer wall of the inner ring body is provided with an embedded groove, and the rolling elements are evenly distributed on the inner side of the embedded groove. The inner side of the outer ring body is provided with an annular groove, and the rolling elements are evenly distributed on the inner side of the annular groove. The embedded groove and the positioning ring groove provide the same function, thereby further improving safety. The annular groove ensures that the rolling elements are also embedded on the inner side, improving the overall stability.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, an outer sleeve ring is fixed to one side of a single side cover ring to form a stable installation. A support ring is provided on the inner side, pressing against the outer side of the lubricating oil storage box to facilitate installation and provide a certain degree of cushioning and shock absorption to reduce the impact of vibration. An inlet is provided on the lubricating oil storage box to facilitate the addition of lubricating oil. A sealing plug can provide a sealing and blocking effect to prevent lubricating oil leakage. A connecting bend is fixedly connected to the inner side of the lubricating oil storage box, and one end of the connecting bend is connected to… A miniature delivery pump is used to pump and extract lubricating oil, which is then evenly distributed through a connecting ring to a right-angle delivery pipe. From there, the lubricating oil is delivered to a spray head and atomized by nozzles distributed on the spray head. This ensures that the lubricating oil is evenly sprayed onto the inner ring and rolling elements, achieving a wide-area spray lubrication effect. This facilitates high-efficiency self-lubrication, ensures stable high-speed operation of the bearing, improves bearing stability and reliability, and avoids increased bearing wear caused by increased friction and higher bearing temperature.

[0019] 2. In this invention, a mounting ring is fixed to the outer side of the inner ring body, and several mounting seats are distributed on the outer side of the mounting ring to facilitate stable connection and installation. The spring piece is connected and installed through the mounting seats, and forms a rotational connection with the rotating shaft. An elastic damping rod is installed at both ends of the mounting seat, and the two ends of the elastic damping rod are provided with rotating seats to connect rotation. The outer wall of the elastic damping rod is fitted with a spring to form elastic support, which helps to provide a buffering and shock-absorbing flexible support for the outer ring, avoiding the problem of inconvenience caused by excessive vibration amplitude during operation.

[0020] 3. In this invention, fasteners are distributed on the inner side of the side cover plate, and connecting blocks are provided on the mounting ring. This facilitates the fastening of the connecting blocks onto the limiting groove opened on the inner side of the inner support ring, forming a stable fastening and fixing effect. At the same time, the fasteners are provided with limiting strips and have inner support grooves inside, which facilitates the embedding of the inner support ring into the inner side of the inner support groove to form an inner support. This ensures that the side cover plate is stably installed on the side of the outer ring, which helps to provide a certain degree of protection for the lubricating oil storage box. It also facilitates quick disassembly and improves the convenience of operation. Attached Figure Description

[0021] Figure 1 This is a perspective view of a precision bearing for an industrial robot according to the present invention;

[0022] Figure 2 This is a schematic diagram of another angle of the structure of a precision bearing for industrial robots according to the present invention;

[0023] Figure 3This is an exploded structural diagram of a precision bearing for an industrial robot according to the present invention;

[0024] Figure 4 This is a schematic diagram of the lubrication mechanism of a precision bearing for an industrial robot according to the present invention;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a partially exploded structural diagram of a precision bearing for industrial robots according to the present invention;

[0027] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0028] Figure 8 This is a schematic diagram of the internal cross-sectional structure of a precision bearing for industrial robots according to the present invention;

[0029] Figure 9 for Figure 8 Enlarged structural diagram at point C.

[0030] In the picture:

[0031] 1. Bearing Mechanism; 101. Outer Ring; 102. Side Cover Ring; 103. Inner Ring; 104. Positioning Ring Groove; 105. Rolling Element; 106. Embedded Groove; 2. Lubrication Mechanism; 201. Outer Ring; 202. Support Ring; 203. Lubricating Oil Storage Box; 204. Feed Inlet; 205. Sealing Plug; 206. Connecting Bend; 207. Miniature Conveying Pump; 208. Control Box; 209. Connecting Ring; 210. Right Angle Conveying Pipe; 211. Spray Head; 212. Atomizing nozzle; 213. Side cover plate; 214. Through hole; 215. Protective ring; 216. Inner support ring body; 217. Limiting groove; 3. Elastic support mechanism; 301. Mounting ring; 302. Mounting seat; 303. Spring piece; 304. Rotating shaft; 305. Elastic damping rod; 306. Rotating seat; 307. Spring component; 4. Mounting mechanism; 401. Mounting fastener; 402. Connecting block; 403. Limiting strip; 404. Inner support groove; 405. Inner support ring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: As Figures 1-9 As shown, the present invention provides a technical solution: a precision bearing for industrial robots, including a bearing mechanism 1, a lubrication mechanism 2 on one side of the bearing mechanism 1, an elastic support mechanism 3 on the inner side of the lubrication mechanism 2, an installation mechanism 4 on the inner side of the elastic support mechanism 3, the lubrication mechanism 2 including an outer ring 201, a lubricating oil storage box 203 on the inner side of the outer ring 201, a connecting bend 206 fixedly connected to the inner side of the lubricating oil storage box 203, a micro conveying pump 207 fixedly connected to one end of the connecting bend 206, a connecting ring 209 fixedly connected to the micro conveying pump 207, a plurality of right-angle conveying pipes 210 evenly distributed on the connecting ring 209, a spray head 211 fixedly connected to one end of the right-angle conveying pipes 210, and a plurality of atomizing nozzles 212 evenly distributed in a ring on the spray head 211;

[0034] The bearing mechanism 1 includes an outer ring body 101, with side cover rings 102 on both sides of the outer ring body 101. Several right-angle conveying pipes 210 pass through the sides of the side cover rings 102. Spray heads 211 are distributed in the gaps on the sides of the side cover rings 102. A support ring 202 is provided on the inner side of the outer ring 201. The support ring 202 is sleeved on the outer side of the lubricating oil storage box 203. A feed inlet 204 is opened on one side of the lubricating oil storage box 203. The inner side of the feed inlet 204 is connected to... A control box 208 is installed on the side of the micro conveying pump 207, which is connected to a sealing plug 205. A side cover plate 213 is installed on one side of the outer ring 201. A through hole 214 is opened through the side of the side cover plate 213. A protective ring 215 is provided on one side of the side cover plate 213. An inner ring body 103 is connected to the inner side of the side cover ring 102. An inner support ring body 216 is fixedly installed on one side of the inner ring body 103. Several limiting grooves 217 are opened on the inner side of the inner support ring body 216.

[0035] In this embodiment, the outer ring 101 is provided on the outside to provide mounting support, and the inner ring 103 on the inside has a number of rolling elements 105 distributed at the connection gap. The rolling elements 105 can provide rotation. The side cover rings 102 are symmetrically arranged on both sides of the outer ring 101 to provide a sealing function, thereby ensuring the stable operation of the bearing.

[0036] The outer ring 201 is fixed to one side of the single side cover ring 102 to form a stable installation. A support ring 202 is provided on the inner side, pressing against the outer side of the lubricating oil storage box 203 to facilitate installation and provide a certain degree of cushioning and shock absorption to reduce the impact of vibration. A feed port 204 is provided on the lubricating oil storage box 203, facilitating the addition of lubricating oil. A sealing plug 205 provides a sealing and blocking effect to prevent lubricating oil leakage. A connecting bend 206 is fixedly connected to the inner side of the lubricating oil storage box 203, and one end of the connecting bend 206 is connected to… The micro-pump 207 pumps and extracts the lubricating oil, which is then evenly distributed and transported through the connecting ring 209 to the right-angle delivery pipe 210. The right-angle delivery pipe 210 then delivers the lubricating oil to the spray head 211 and atomizes it from the atomizing nozzles 212 distributed on the spray head 211. This facilitates the even spraying of the lubricating oil onto the inside of the outer ring 101 and the rolling element 105, achieving a wide-area spray lubrication effect. This promotes high-efficiency self-lubrication, ensures stable and high-speed operation of the bearing, improves the bearing's stability and reliability, and avoids increased bearing wear caused by increased friction and higher bearing temperature. The side cover plate 213 is connected to the side of the outer ring 201 to provide a sealing function. The through hole 214 facilitates the easy removal of the sealing plug 205. The protective ring 215 is set on the side of the side cover plate 213 to improve the strength of the side cover plate 213 and ensure safety. The inner support ring 216 is set in the inner ring 103 and fixed to facilitate the cooperation with the outer ring 201 to provide installation space for the lubricating oil storage box 203.

[0037] Example 2: As Figure 3 and Figure 5 As shown, the elastic support mechanism 3 includes a mounting ring 301. Several mounting seats 302 are evenly distributed on the outer wall of the mounting ring 301. A spring piece 303 is provided in the middle of the mounting seat 302. Elastic damping rods 305 are symmetrically arranged on the outer side of the mounting seat 302. The elastic damping rods 305 are located on the side of the spring piece 303. Rotating shafts 304 are provided at both ends of the spring piece 303. Rotating seats 306 are provided at both ends of the elastic damping rod 305. Spring members 307 are provided on the outer side of the elastic damping rod 305. The mounting mechanism 4 includes a mounting fastener 401. A connecting block 402 is provided on the outer side of the mounting fastener 401. Limiting strips 403 are symmetrically arranged on the inner side of the mounting fastener 401. An inner support groove 404 is opened between the two limiting strips 403. An inner support ring 405 is fitted into the inner side of the inner support groove 404. The inner support ring 405 is fitted and connected to the inner side of the mounting fastener 401.

[0038] In this embodiment, the mounting ring 301 is fixed to the outer side of the inner ring body 103, and several mounting seats 302 are distributed on the outer side of the mounting ring 301 to facilitate stable connection and installation. The spring piece 303 is connected and installed through the mounting seats 302, and forms a rotational connection with the rotating shaft 304. The elastic damping rod 305 is installed at both ends of the mounting seat 302, and the two ends of the elastic damping rod 305 are provided with rotating seats 306 to connect rotation. The outer wall of the elastic damping rod 305 is sleeved with a spring member 307 to form elastic support, which helps to provide a buffering and shock-absorbing flexible support for the outer ring 201, avoiding the problem of inconvenience caused by excessive vibration amplitude during operation.

[0039] With fasteners 401 distributed on the inner side of the side cover plate 213 and connecting blocks 402 provided on the mounting ring 301, it is easier to fasten the connecting blocks 402 onto the limiting groove 217 opened on the inner side of the inner support ring 216, forming a stable fastening and fixing effect. At the same time, the fasteners 401 are provided with limiting strips 403 and have inner support grooves 404 inside, which facilitates the inner support ring 405 to be embedded in the inner side of the inner support groove 404 to form an inner support, thereby ensuring that the side cover plate 213 is stably installed on the side of the outer ring 201, which helps to provide a certain degree of protection for the lubricating oil storage box 203, and also facilitates quick disassembly, improving the convenience of operation.

[0040] Example 3: As Figures 2-4 , Figure 8 and Figure 9 As shown, a positioning ring groove 104 is fixedly installed on one side of the side cover ring 102. A number of rolling elements 105 are evenly distributed in a ring between the two positioning ring grooves 104. An inner groove 106 is opened on the outer wall of the inner ring body 103. The rolling elements 105 are evenly distributed on the inner side of the inner groove 106. An annular groove is opened on the inner side of the outer ring body 101. The rolling elements 105 are evenly distributed on the inner side of the annular groove.

[0041] In this embodiment, a positioning ring groove 104 is installed on the side of the side cover ring 102 to facilitate positioning of the rolling element 105 and prevent it from falling off during rotation, thus ensuring stable use. The inner groove 106 cooperates with the positioning ring groove 104 to provide the same function, thereby further improving safety. The annular groove ensures that the rolling element 105 is also embedded inside, improving overall stability.

[0042] In this invention, the precision bearing for industrial robots, when in use, firstly, provides mounting support through an outer ring body 101 located on the outside, and cooperates with an inner ring body 103 on the inside, with several rolling elements 105 distributed at the connection gap. The rolling elements 105 provide rotational force. Side cover rings 102 are symmetrically arranged on both sides of the outer ring body 101 to provide a sealing function, thereby ensuring stable operation of the bearing. The side cover ring 102 has a positioning ring groove 104 installed on its side to facilitate positioning of the rolling elements 105, preventing them from falling off during rotation and ensuring stable use. The inner groove 106 cooperates with the positioning ring groove 104 to provide the same function, thereby further improving safety. The annular groove ensures that the rolling elements 105 are also embedded on the inside, improving overall stability.

[0043] The outer ring 201 is fixed to one side of the single side cover ring 102 to form a stable installation. A support ring 202 is provided on the inner side, pressing against the outer side of the lubricating oil storage box 203 to facilitate installation and provide a certain degree of cushioning and shock absorption to reduce the impact of vibration. A feed port 204 is provided on the lubricating oil storage box 203, facilitating the addition of lubricating oil. A sealing plug 205 provides a sealing and blocking effect to prevent lubricating oil leakage. A connecting bend 206 is fixedly connected to the inner side of the lubricating oil storage box 203, and one end of the connecting bend 206 is connected to… The micro-pump 207 pumps and extracts the lubricating oil, which is then evenly distributed and transported through the connecting ring 209 to the right-angle delivery pipe 210. The right-angle delivery pipe 210 then delivers the lubricating oil to the spray head 211 and atomizes it from the atomizing nozzles 212 distributed on the spray head 211. This facilitates the even spraying of the lubricating oil onto the inside of the outer ring 101 and the rolling element 105, achieving a wide-area spray lubrication effect. This promotes high-efficiency self-lubrication, ensures stable and high-speed operation of the bearing, improves the bearing's stability and reliability, and avoids increased bearing wear caused by increased friction and higher bearing temperature. The side cover plate 213 is connected to the side of the outer ring 201 to provide a sealing function. The through hole 214 facilitates the easy removal of the sealing plug 205. The protective ring 215 is set on the side of the side cover plate 213 to improve the strength of the side cover plate 213 and ensure safety. The inner support ring 216 is set in the inner ring 103 and fixed to facilitate the cooperation with the outer ring 201 to provide installation space for the lubricating oil storage box 203.

[0044] The mounting ring 301 is fixed to the outside of the inner ring 103, and several mounting seats 302 are distributed on the outside of the mounting ring 301 to facilitate stable connection and installation. The spring piece 303 is connected and installed through the mounting seats 302, and forms a rotational connection with the rotating shaft 304. The elastic damping rod 305 is installed at both ends of the mounting seat 302, and the two ends of the elastic damping rod 305 are provided with rotating seats 306 to connect rotation. The outer wall of the elastic damping rod 305 is fitted with a spring 307 to form elastic support, which helps to provide a buffering and shock-absorbing flexible support for the outer ring 201. With fasteners 401 distributed on the inner side of the side cover plate 213 and connecting blocks 402 provided on the mounting ring 301, it is easier to fasten the connecting blocks 402 onto the limiting groove 217 opened on the inner side of the inner support ring 216, forming a stable fastening and fixing effect. At the same time, the fasteners 401 are provided with limiting strips 403 and have inner support grooves 404 inside, which facilitates the inner support ring 405 to be embedded in the inner side of the inner support groove 404 to form an inner support, thereby ensuring that the side cover plate 213 is stably installed on the side of the outer ring 201, which helps to provide a certain degree of protection for the lubricating oil storage box 203, and also facilitates quick disassembly, improving the convenience of operation.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision bearing for industrial robots, comprising a bearing mechanism (1), characterized in that: A lubrication mechanism (2) is provided on one side of the bearing mechanism (1), an elastic support mechanism (3) is provided on the inner side of the lubrication mechanism (2), and an installation mechanism (4) is provided on the inner side of the elastic support mechanism (3). The lubrication mechanism (2) includes an outer ring (201), a lubricating oil storage box (203) is provided on the inner side of the outer ring (201), a connecting bend (206) is fixedly connected to the inner side of the lubricating oil storage box (203), a micro conveying pump (207) is fixedly connected to one end of the connecting bend (206), a connecting ring (209) is fixedly connected to the micro conveying pump (207), a number of right-angle conveying pipes (210) are evenly distributed on the connecting ring (209), a spray head (211) is fixedly connected to one end of the right-angle conveying pipe (210), and a number of atomizing nozzles (212) are evenly distributed in a ring on the spray head (211). The bearing mechanism (1) includes an outer ring body (101), and side cover rings (102) are provided on both sides of the outer ring body (101). Several right-angle conveying pipes (210) pass through the side of the side cover ring (102), and the spray head (211) is distributed in the gap on the side of the side cover ring (102).

2. The precision bearing for industrial robots according to claim 1, characterized in that: The elastic support mechanism (3) includes a mounting ring (301), and a plurality of mounting seats (302) are evenly distributed on the outer wall of the mounting ring (301). A spring piece (303) is provided in the middle of the mounting seat (302), and an elastic damping rod (305) is symmetrically provided on the outer side of the mounting seat (302). The elastic damping rod (305) is located on the side of the spring piece (303).

3. The precision bearing for industrial robots according to claim 2, characterized in that: The spring sheet (303) has a rotating shaft (304) at both ends, the elastic damping rod (305) has a rotating seat (306) at both ends, and a spring (307) is provided on the outer side of the elastic damping rod (305).

4. The precision bearing for industrial robots according to claim 1, characterized in that: The installation mechanism (4) includes a mounting fastener (401), a connecting block (402) is provided on the outer side of the mounting fastener (401), and limit strips (403) are symmetrically provided on the inner side of the mounting fastener (401).

5. The precision bearing for industrial robots according to claim 4, characterized in that: An inner support groove (404) is provided between the two limiting strips (403), and an inner support ring (405) is fitted inside the inner support groove (404). The inner support ring (405) is fitted and connected to the inner side of the mounting fastener (401).

6. The precision bearing for industrial robots according to claim 1, characterized in that: The inner side of the outer ring (201) is provided with a support ring (202), the support ring (202) is sleeved on the outer side of the lubricating oil storage box (203), the lubricating oil storage box (203) has a feed port (204) on one side, the inner side of the feed port (204) is connected with a sealing plug (205), and the side of the micro conveying pump (207) is equipped with a control box (208).

7. The precision bearing for industrial robots according to claim 6, characterized in that: A side cover plate (213) is installed on one side of the outer ring (201), and a through hole (214) is provided on the side of the side cover plate (213). A protective ring (215) is provided on one side of the side cover plate (213).

8. The precision bearing for industrial robots according to claim 1, characterized in that: The inner side of the side cover ring (102) is connected to an inner ring body (103), and an inner support ring body (216) is fixedly installed on one side of the inner ring body (103). Several limiting grooves (217) are opened on the inner side of the inner support ring body (216).

9. The precision bearing for industrial robots according to claim 8, characterized in that: A positioning ring groove (104) is fixedly installed on one side of the side cover ring (102), and a number of rolling elements (105) are evenly distributed in a ring between the two positioning ring grooves (104).

10. The precision bearing for industrial robots according to claim 9, characterized in that: The outer wall of the inner ring (103) is provided with an embedded groove (106), and the rolling elements (105) are evenly distributed on the inner side of the embedded groove (106). The inner side of the outer ring (101) is provided with an annular groove, and the rolling elements (105) are evenly distributed on the inner side of the annular groove.

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