Robot tail end sealing structure

Abstract

The utility model relates to the technical field of robots, in particular to a robot tail end sealing structure which comprises a wrist body, a speed reducer connected with the wrist body, an end face flange connected to the end face of the speed reducer and a sealing sleeve arranged outside the speed reducer and the wrist body. And a sealing ring is arranged between the sealing sleeve and the end face flange. According to the robot tail end sealing structure, based on a standard speed reducer, through reasonable design of the flange and the sealing sleeve, the secondary sealing effect is achieved, the axial size is not increased, and the appearance is not affected. Compared with an existing structure, the installation mode is more flexible, speed reduction does not need to be customized, the speed reducer is suitable for a common standard speed reducer structure, and the axial size of the structure is not increased.

Description

Technical Field

[0001] The utility model relates to the technical field of robots, in particular to a robot terminal sealing structure. Background Art

[0002] With the widespread application of robots, higher requirements are also put forward for robot performance. For example, robots are used in fields such as food, medicine, and health services, and robots are required to meet certain cleanliness requirements. Most of the existing structures are based on the seals of the reducer. However, due to the internal grease, high temperature, and long-term operation of the reducer under pressure, it is easy to cause the seals to fail, which in turn causes grease precipitation and pollutes the on-site working environment. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a robot end sealing structure.

[0004] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0005] A robot end sealing structure includes a wrist body, a reducer connected to the wrist body, an end face flange connected to the end face of the reducer, and a sealing sleeve arranged outside the reducer and the wrist body, wherein a sealing ring is arranged between the sealing sleeve and the end face flange.

[0006] Preferably, a sealing sleeve countersunk hole and a sealing sleeve through hole are provided on the sealing sleeve, and a first mounting surface and a second mounting surface are provided inside the sealing sleeve.

[0007] Preferably, the reducer comprises an outer cylindrical surface of a reducer rigid wheel, a through hole of the reducer rigid wheel, and a flange surface at an output end of the reducer, and the flange surface at the output end of the reducer cooperates with the end face flange.

[0008] Preferably, the sealing sleeve counterbore is aligned with the reducer rigid wheel through hole.

[0009] Preferably, the outer cylindrical surface of the reducer rigid wheel cooperates with the second mounting surface, and the second mounting surface is coated with sealant.

[0010] Preferably, the end face flange comprises an outer cylindrical surface of the end face flange and an inner cylindrical surface of the end face flange, and the inner cylindrical surface of the end face flange cooperates with the flange surface of the output end of the reducer.

[0011] Preferably, the sealing ring corresponds to the first mounting surface and the outer cylindrical surface of the end face flange.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a robot end sealing structure, based on a standard reducer, and achieves a secondary sealing effect through reasonable design of flanges and sealing sleeves, without increasing the axial size and affecting the appearance. Compared with the existing structure, the installation method is more flexible, and the reduction does not need to be customized. It is suitable for the commonly used standard reducer structure and does not increase the axial size of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 2 This is a front view structural diagram of the sealing sleeve of the utility model;

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of the sealing sleeve of the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the reducer of the utility model;

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the end face flange of the utility model.

[0020] In the figure: 1. sealing sleeve; 101. sealing sleeve countersunk hole; 102. sealing sleeve through hole; 103. first mounting surface; 104. second mounting surface; 2. sealing ring; 3. reducer; 301. outer cylindrical surface of reducer rigid wheel; 302. through hole of reducer rigid wheel; 303. flange surface at output end of reducer; 4. wrist body; 5. end face flange; 501. outer cylindrical surface of end face flange; 502. inner cylindrical surface of end face flange. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 1 to 5 As shown, a robot end sealing structure is mainly composed of a sealing sleeve 1, a sealing ring 2, a reducer 3, a wrist body 4, and an end face flange 5.

[0023] The sealing sleeve 1 includes a sealing sleeve counterbore 101 , a sealing sleeve through hole 102 , a first mounting surface 103 , and a second mounting surface 104 .

[0024] The reducer 3 comprises a reducer rigid wheel outer cylindrical surface 301 , a reducer rigid wheel through hole 302 , and a reducer output end flange surface 303 .

[0025] The end face flange 5 includes an end face flange outer cylindrical surface 501 and an end face flange inner cylindrical surface 502 .

[0026] Specifically, the reducer 3 cooperates with the wrist body 4, and is fastened to the wrist body 4 by four screws that pass through the sealing sleeve 1 and the reducer rigid wheel through hole 302 in sequence; the reducer 3 is fastened to the wrist body 4 through the remaining eight through holes; the sealing sleeve through hole 102 is used to avoid the nuts of the eight fixing screws used to fix the reducer 3.

[0027] The second mounting surface 104 is coated with sealant, and the second mounting surface 104 is matched with the outer cylindrical surface 301 of the reducer rigid wheel; the end face flange 5 is fixed to the output end of the reducer 3 by screws, and the inner cylindrical surface 502 of the end face flange is matched with the flange surface 303 of the output end of the reducer; the sealing ring 2 is arranged between the first mounting surface 103 and the outer cylindrical surface 501 of the end face flange, and its outer periphery is matched with the sealing sleeve 1 to prevent it from rotating with the end face flange 5, and the inner lip of the sealing ring 2 is in contact and sealed with the end face flange 5. The outer cylindrical surface 501 of the end face flange is required to have a higher surface roughness requirement.

[0028] The secondary sealing between this structure and the robot end structure achieves a better sealing effect.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A robot end sealing structure, comprising a wrist body (4), characterized in that: It also includes a reducer (3) connected to the wrist body (4), an end face flange (5) connected to the end face of the reducer (3), and a sealing sleeve (1) arranged outside the reducer (3) and the wrist body (4), and a sealing ring (2) is arranged between the sealing sleeve (1) and the end face flange (5).

2. A robot end sealing structure according to claim 1, characterized in that: The sealing sleeve (1) is provided with a sealing sleeve counterbore (101) and a sealing sleeve through hole (102), and the interior of the sealing sleeve (1) is provided with a first mounting surface (103) and a second mounting surface (104).

3. A robot end sealing structure according to claim 2, characterized in that: The reducer (3) comprises a reducer rigid wheel outer cylindrical surface (301), a reducer rigid wheel through hole (302), and a reducer output end flange surface (303), and the reducer output end flange surface (303) cooperates with the end face flange (5).

4. A robot end sealing structure according to claim 3, characterized in that: The sealing sleeve counterbore (101) is aligned and matched with the reducer rigid wheel through hole (302).

5. The robot end sealing structure according to claim 3, characterized in that: The outer cylindrical surface (301) of the reducer rigid wheel cooperates with the second mounting surface (104), and the second mounting surface (104) is coated with sealant.

6. A robot end sealing structure according to claim 3, characterized in that: The end face flange (5) comprises an end face flange outer cylindrical surface (501) and an end face flange inner cylindrical surface (502), and the end face flange inner cylindrical surface (502) cooperates with the reducer output end flange surface (303).

7. A robot end sealing structure according to claim 6, characterized in that: The sealing ring (2) corresponds to the first mounting surface (103) and the outer cylindrical surface (501) of the end face flange.

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