Bearing for robot

Abstract

The utility model discloses a bearing for a robot, which comprises a bearing main body, the inner side of the bearing main body is provided with an inner ring, the outer side surface of the inner ring is provided with a connecting mechanism used for being connected with a rotating shaft of which the size is smaller than that of the inner ring, and the connecting mechanism can be connected with the inner ring by adjusting and adapting to the rotating shafts of various sizes. The inner ring is connected with the rotating shaft matched with the inner ring in size in a clamped mode, when the size of the rotating shaft is smaller than that of the inner ring, the connecting mechanism is installed on the inner ring, the rotating shaft with the size smaller than the aperture of the inner ring is inserted into the inner side of the connecting mechanism, and the rotating shaft is connected with the connecting mechanism after adjustment. Therefore, the adaptability of the rotating shaft to the rotating shaft is high, and the rotating shaft can be connected with rotating shafts of various sizes.

Description

Technical Field

[0001] This utility model relates to the field of robot bearing technology, specifically a robot bearing. Background Technology

[0002] There are many types of bearings used in robots. Depending on the application scenario, load requirements, and motion accuracy requirements of the robot, different types of bearings play an important role in the robot. When selecting bearings for robots, the appropriate bearing type should be selected according to the stress conditions of the robot components. High-precision parts (such as joints) require high-precision bearings, while thin-walled bearings or compact crossed roller bearings are suitable for parts with limited space. Durable bearings should be selected according to the robot's operating environment and frequency. In short, there are many types of bearings for robots, and different application scenarios require the selection of appropriate bearing types to ensure the efficient and stable operation of the robot.

[0003] Currently, for ball bearings commonly used in robots, the size of the shaft connected to the inner ring needs to be manufactured according to the size of the inner ring. During installation, the inner ring is clamped onto the shaft. If the size of the shaft is too small to form a compression with the size of the inner ring, the connection cannot be made, resulting in poor bearing compatibility.

[0004] Therefore, a robot bearing is proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a bearing for robots. This invention aims to solve the problem that, in the existing technology for ball bearings commonly used in robots, the size of the shaft connected to the inner ring needs to be manufactured according to the size of the inner ring. During installation, the inner ring is clamped onto the shaft. If the size of the shaft is too small to form a compression with the size of the inner ring, the connection cannot be made, resulting in poor bearing compatibility.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A robot bearing includes a bearing body, an inner ring mounted on the inner side of the bearing body, and a connecting mechanism mounted on the outer side of the inner ring for connecting with a rotating shaft smaller than the inner ring. The connecting mechanism can be adjusted to connect with the inner ring to various sizes of rotating shafts.

[0010] As a preferred embodiment of this utility model, a plurality of threaded holes are installed at equal intervals on the outer side of the inner ring, a sleeve is installed on the connecting mechanism, a flange for connecting with the inner ring is installed on one end of the sleeve, and the flange is threadedly connected to the plurality of threaded holes on the outer side of the inner ring by a plurality of bolts.

[0011] As a preferred embodiment of this utility model, the inner diameter of the sleeve is the same as the inner diameter of the inner ring, and a section of the edge of the sleeve coincides with one end of the inner edge of the inner ring.

[0012] As a preferred embodiment of this utility model, a telescopic rod is symmetrically installed on the top and bottom of the inner side of one end of the sleeve. A spring is sleeved on the outer ring surface of the telescopic joint of the telescopic rod. A support block is fixedly connected to one end of the telescopic joint of the telescopic rod. One end of the spring is fixedly connected to the support block, and the other end is fixedly connected to the fixed joint of the telescopic rod.

[0013] As a preferred embodiment of this utility model, the spring extends the telescopic rod to its maximum length in the initial state, and the two support blocks are simultaneously supported to the inner center direction of the sleeve.

[0014] As a preferred embodiment of this utility model, screws are symmetrically installed on both inner sides of one end of the sleeve, the screws are threaded to the sleeve, the nuts on the screws are located on the outer side of the sleeve, and a clamping block is installed on one end of the screws on the inner side of the sleeve, the connection between the clamping block and the screws is rotatable.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention uses a snap-fit ​​connection between an inner ring and a rotating shaft of a matching size. When the size of the rotating shaft is smaller than that of the inner ring, the connecting mechanism is installed on the inner ring, and the rotating shaft, which is smaller than the inner ring's aperture, is inserted into the inner side of the connecting mechanism. After adjustment, the rotating shaft is connected to the connecting mechanism, thereby achieving the connection between the rotating shaft and the inner ring. Therefore, this rotating shaft has high adaptability to rotating shafts and can be connected to rotating shafts of various sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a robot bearing according to the present invention;

[0019] Figure 2 This is a schematic diagram of the outer side structure of the inner ring of a robot bearing according to the present invention;

[0020] Figure 3 This is a schematic diagram of the connection mechanism of a robot bearing according to the present invention.

[0021] In the diagram: 1. Bearing body; 11. Inner ring; 12. Threaded hole; 2. Connecting mechanism; 21. Sleeve; 22. Flange; 23. Telescopic rod; 24. Spring; 25. Support block; 26. Screw; 27. Clamping block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1-3 This embodiment provides a robot bearing, including a bearing body 1. An inner ring 11 is installed on the inner side of the bearing body 1, and a connecting mechanism 2 for connecting to a rotating shaft smaller than the inner ring 11 is installed on the outer side of the inner ring 11. The connecting mechanism 2 can be adjusted to adapt to rotating shafts of various sizes and connect to the inner ring 11. When the robot bearing is in use, the inner ring 11 is clamped to a rotating shaft of a matching size. When the size of the rotating shaft is smaller than the size of the inner ring 11, the connecting mechanism 2 is installed on the inner ring 11, and a rotating shaft smaller than the diameter of the inner ring 11 is inserted into the inner side of the connecting mechanism 2. After adjustment, the rotating shaft is connected to the connecting mechanism 2, thereby realizing the connection between the rotating shaft and the inner ring 11. Therefore, the rotating shaft has high adaptability to rotating shafts and can be connected to rotating shafts of various sizes.

[0025] In this embodiment, as Figure 1 and Figure 2 As shown, multiple threaded holes 12 are evenly spaced on the outer surface of the inner ring 11. A sleeve 21 is installed on the connecting mechanism 2. A flange 22 for connecting the inner ring 11 is installed on one end of the sleeve 21. The flange 22 is threadedly connected to the multiple threaded holes 12 on the outer surface of the inner ring 11 by multiple bolts. The inner diameter of the sleeve 21 is the same as the inner diameter of the inner ring 11, and one edge of the sleeve 21 coincides with the inner edge of one end of the inner ring 11. Therefore, the sleeve 21 can be easily disassembled and assembled on the inner ring 11.

[0026] In this embodiment, as Figure 1 and Figure 3As shown, a telescopic rod 23 is symmetrically installed on the top and bottom of the inner side of one end of the sleeve 21. A spring 24 is fitted on the outer ring surface of the telescopic joint of the telescopic rod 23. A support block 25 is fixedly connected to one end of the telescopic joint of the telescopic rod 23. One end of the spring 24 is fixedly connected to the support block 25, and the other end is fixedly connected to the fixed joint of the telescopic rod 23. In the initial state, the spring 24 extends the telescopic rod 23 to its limit length, and the two support blocks 25 are simultaneously supported to the inner center direction of the sleeve 21. When a rotating shaft of different size is inserted into the inner side of the two support blocks 25, it will squeeze and open the two support blocks 25. At this time, the two support blocks 25 will initially clamp the rotating shaft.

[0027] In this embodiment, as Figure 1 and Figure 3 As shown, screws 26 are symmetrically installed on both sides of the inner side of one end of the sleeve 21. The screws 26 are threadedly connected to the sleeve 21. The nuts on the screws 26 are located on the outer side of the sleeve 21. A clamping block 27 is installed on the inner side of the sleeve 21 at one end of the screws 26. The connection between the clamping block 27 and the screws 26 is a rotatable connection. Therefore, after the support block 25 clamps the rotating shaft for the first time, rotating the two screws 26 at the same time will move the two clamping blocks 27 toward the rotating shaft and fit them against the rotating shaft. Since the clamping blocks 27 are rotatably connected to the screws 26, continuing to rotate the screws 26 will cause the clamping blocks 27 to press and fix the rotating shaft, thereby completing the installation and connection of rotating shafts of different sizes.

[0028] Working principle: When the robot uses the bearing, it is connected to the rotating shaft of the same size through the inner ring 11. When the size of the rotating shaft is smaller than the size of the inner ring 11, the flange 22 on the sleeve 21 is connected to the threaded hole 12 on the outer side of the inner ring 11 with bolts. At this time, the rotating shaft is inserted into the inside of the two support blocks 25. The two support blocks 25 are squeezed and spread apart, and the two support blocks 25 will initially clamp the rotating shaft. After the support blocks 25 clamp the rotating shaft, the two screws 26 are rotated at the same time, so that the two clamping blocks 27 move towards the rotating shaft and fit against the rotating shaft. Since the clamping blocks 27 are rotatably connected to the bolts 26, the screws 26 are rotated further to squeeze and fix the clamping blocks 27 to the rotating shaft, thus completing the installation and connection of rotating shafts of different sizes. Therefore, this rotating shaft has high adaptability and can be connected to rotating shafts of various sizes.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A bearing for a robot, comprising a bearing body (1), characterised in that: The inner side of the bearing body (1) is provided with an inner ring (11), the outer side of the inner ring (11) is provided with a connecting mechanism (2) for connecting with a rotating shaft smaller than the inner ring (11), the connecting mechanism (2) can be connected with the inner ring (11) by adjusting the size of the rotating shaft.

2. A bearing for a robot according to claim 1, characterized in that: The outer side of the inner ring (11) is provided with a plurality of threaded holes (12) at equal intervals, the connecting mechanism (2) is provided with a sleeve (21), one end of the sleeve (21) is provided with a flange (22) for connecting with the inner ring (11), the flange (22) is threadedly connected with the plurality of threaded holes (12) on the outer side of the inner ring (11) through a plurality of bolts.

3. A bearing for a robot according to claim 2, characterized in that: The inner diameter of the sleeve (21) is the same as the inner diameter of the inner ring (11), and one end of the sleeve (21) coincides with the inner side of one end of the inner ring (11).

4. A bearing for a robot according to claim 2, characterized in that: The inner side of one end of the sleeve (21) is symmetrically provided with an expansion rod (23), the outer surface of the expansion joint of the expansion rod (23) is provided with a spring (24), one end of the expansion joint of the expansion rod (23) is fixedly connected with a supporting block (25), one end of the spring (24) is fixedly connected with the supporting block (25), and the other end is fixedly connected with the fixed joint of the expansion rod (23).

5. A bearing for a robot according to claim 4, characterized in that: The spring (24) extends the expansion rod (23) to the limit length in the initial state, and the two supporting blocks (25) are supported to the center direction of the inner side of the sleeve (21) at the same time.

6. A bearing for a robot as claimed in claim 2, characterized in that: The inner side of one end of the sleeve (21) is symmetrically provided with a screw rod (26), the screw rod (26) is threadedly connected with the sleeve (21), the nut on the screw rod (26) is located on the outer side of the sleeve (21), one end of the screw rod (26) is provided with a clamping block (27) on the inner side of the sleeve (21), and the connection between the clamping block (27) and the screw rod (26) is rotatably connected.

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