Robot joint sealing protection structure

Abstract

The utility model provides a robot joint sealing protection structure which comprises a first sealing mechanism, a second sealing mechanism and a mounting plate, and the first sealing mechanism comprises a first mounting sleeve, a first extrusion telescopic rod, a first extrusion plate, a second extrusion telescopic rod and a second extrusion plate. A first extrusion telescopic rod is fixedly connected to the interior of the first mounting sleeve, a first extrusion plate is fixedly connected to the output end of the first extrusion telescopic rod, a second extrusion telescopic rod is fixedly connected to the right end of the interior of the first mounting sleeve, and sealing is achieved when the robot joint rotates and deforms through the three layers of sealing. And through extrusion of the first extrusion telescopic rod, the second extrusion telescopic rod and the third extrusion telescopic rod, when the first mounting sleeve rotates, infinitesimal displacement generated in the joint movement process can be adapted through deformation of an elastic piece, so that the sealing performance is kept, and the situation that when the first mounting sleeve rotates, the joint is not damaged can be effectively prevented. Water or dust enters the device along the sealing gap.

Description

Technical Field

[0001] The utility model relates to a robot joint, in particular to a robot joint sealing protection structure, belonging to the technical field of robot joints. Background Art

[0002] With the continuous development of robot technology, some applications require robots to be clean or have a high level of protection. In order to prevent leakage from robot joints with relative motion, oil in the joints from leaking into the external environment, or to prevent foreign matter from the external environment from entering the joints, robots in the prior art often need to add sealing components at the robot joints.

[0003] The outer lip of the existing sealing ring realizes rotational sealing. The size of the outer lip is larger than the aperture size of the second shell. There is a large friction during movement. Driven by the friction, the sealing ring may rotate with the second shell, affecting the sealing effect. The sealing effect of a single layer is poor, and dust can easily enter the interior of the equipment along the gap. Therefore, a robot joint sealing protection structure is proposed. Utility Model Content

[0004] In view of this, the utility model provides a robot joint sealing protection structure to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the utility model is implemented as follows: a robot joint sealing protection structure includes a first sealing mechanism, a second sealing mechanism and a mounting plate, the first sealing mechanism includes a first mounting sleeve, a first extruded telescopic rod, a first extruded plate, a second extruded telescopic rod and a second extruded plate, the first mounting sleeve is fixedly connected to the first extruded telescopic rod, the output end of the first extruded telescopic rod is fixedly connected to the first extruded plate, the right end of the first mounting sleeve is fixedly connected to the second extruded telescopic rod, and the output end of the second extruded telescopic rod is fixedly connected to the second extruded plate;

[0006] The second sealing mechanism includes a second mounting sleeve, a fixing frame, a fixing plate, a third extruded telescopic rod, a third extruded plate and a second sealing ring. The interior of the second mounting sleeve is fixedly connected to the fixing frame, the right end of the fixing frame is fixedly connected to a screw rod, the outer wall of the screw rod is slidably connected to a fixing plate, the outer wall of the fixing frame is fixedly connected to a second sealing ring, the left end of the second mounting sleeve is fixedly connected to the third extruded telescopic rod, and the output end of the third extruded telescopic rod is fixedly connected to the third extruded plate.

[0007] Further preferably, the first sealing mechanism further comprises a limiting plate and a limiting groove, the limiting plate is fixedly connected to the middle of the interior of the first mounting sleeve, and the limiting groove is provided in the middle of the limiting plate.

[0008] Further preferably, the second sealing mechanism also includes a motor, a connecting head, a sealing sleeve and a first sealing ring, the motor is clamped and fixedly connected between the fixing frame and the fixing plate, the second sealing ring is tightly fitted on the top left end of the motor, the first sealing ring is fixedly connected to the inside of the second mounting sleeve, and the sealing sleeve is fixedly connected to the right side of the second mounting sleeve close to the first sealing ring.

[0009] Further preferably, the bottom end of the outer wall of the second extrusion plate is tightly fitted to the outer wall of the sealing sleeve.

[0010] Further preferably, the right end of the outer wall of the first extrusion plate is tightly fitted to the left end of the second mounting sleeve.

[0011] Further preferably, the left end of the outer wall of the third extruded plate is tightly fitted with the right end of the first mounting sleeve and the left end of the sealing sleeve.

[0012] Further preferably, the right end of the outer wall of the first installation sleeve is sleeved on the outer wall of the second installation sleeve.

[0013] Further preferably, the output end of the motor is fixedly connected to a connector, and the outer wall of the connector is slidably connected to the inside of the limiting groove.

[0014] The utility model embodiment adopts the above technical solution, which has the following advantages:

[0015] 1. The first installation sleeve and the second installation sleeve are sleeved together, and the inner wall of the right end of the first installation sleeve is tightly fitted with two first sealing rings to achieve the first layer of sealing. When the second extrusion plate at the output end of the second extrusion telescopic rod squeezes the sealing sleeve to be extruded and deformed, the third extrusion plate is pushed by the third extrusion telescopic rod to squeeze the first installation sleeve and the sealing sleeve to deform, thereby achieving the second layer of sealing. The first extrusion telescopic rod is arranged inside the first installation sleeve to push the first extrusion plate to squeeze and seal the connection between the second installation sleeve and the first installation sleeve, and the third layer of sealing is achieved by the combination of squeezing the motor and the second sealing ring inside the fixed frame through the fixed plate to deform;

[0016] Second, the three-layer seal is used to achieve sealing when the robot joint rotates and deforms, and the extrusion of the first extruded telescopic rod, the second extruded telescopic rod and the third extruded telescopic rod can achieve that when the first mounting sleeve rotates, the deformation of the elastic member can adapt to the tiny displacement generated during the joint movement, thereby maintaining the sealing performance, and can effectively prevent water or dust from entering the device along the sealing gap when the first mounting sleeve rotates.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is the overall structure diagram of the utility model;

[0020] Figure 2 This is the overall internal cross-sectional structure diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the first installation sleeve of the utility model;

[0022] Figure 4 This is a schematic diagram of the second installation sleeve of the utility model;

[0023] Figure 5 For this utility model Figure 2 A partial enlarged schematic diagram in the middle.

[0024] Figure numerals: 1. first sealing mechanism; 101. first mounting sleeve; 102. limiting plate; 103. limiting groove; 104. first extruded telescopic rod; 105. first extruded plate; 106. second extruded telescopic rod; 107. second extruded plate; 2. second sealing mechanism; 201. second mounting sleeve; 202. fixing frame; 203. fixing plate; 204. screw rod; 205. motor; 206. connecting head; 207. third extruded telescopic rod; 208. third extruded plate; 209. sealing sleeve; 2010. first sealing ring; 2011. second sealing ring; 3. mounting plate. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] Example

[0028] like Figure 1 - Figure 5 As shown, the embodiment of the utility model provides a robot joint sealing protection structure, including a first sealing mechanism 1, a second sealing mechanism 2 and a mounting plate 3, wherein the first sealing mechanism 1 includes a first mounting sleeve 101, a first extruded telescopic rod 104, a first extruded plate 105, a second extruded telescopic rod 106 and a second extruded plate 107, wherein the first mounting sleeve 101 is internally fixedly connected with the first extruded telescopic rod 104, the output end of the first extruded telescopic rod 104 is fixedly connected with the first extruded plate 105, the internal right end of the first mounting sleeve 101 is fixedly connected with the second extruded telescopic rod 106, and the output end of the second extruded telescopic rod 106 is fixedly connected with the second extruded plate 107, and the first layer of sealing is achieved by sleeve-connecting the first mounting sleeve 101 and the second mounting sleeve 201 together, and the inner side wall of the right end of the first mounting sleeve 101 is tightly fitted with two first sealing rings 2010;

[0029] The second sealing mechanism 2 includes a second mounting sleeve 201, a fixing frame 202, a fixing plate 203, a third extruded telescopic rod 207, a third extruded plate 208 and a second sealing ring 2011. The interior of the second mounting sleeve 201 is fixedly connected to the fixing frame 202, the right end of the fixing frame 202 is fixedly connected to the screw rod 204, the outer wall of the screw rod 204 is slidably connected to the fixing plate 203, the outer wall of the fixing frame 202 is fixedly connected to the second sealing ring 2011, the left end of the second mounting sleeve 201 is fixedly connected to the third extruded telescopic rod 207, the output end of the third extruded telescopic rod 207 is fixedly connected to the third extruded plate 208, the second extruded plate 107 at the output end of the second extruded telescopic rod 106 squeezes the sealing sleeve 209 for extrusion and deformation, and the third extruded telescopic rod 207 pushes the third extruded plate 208 to squeeze the first mounting sleeve 101 and the sealing sleeve 209 to deform, thereby realizing a second layer of sealing.

[0030] In one embodiment, specifically, the first sealing mechanism 1 further includes a limiting plate 102 and a limiting groove 103 , the limiting plate 102 is fixedly connected to the middle of the first mounting sleeve 101 , and the limiting groove 103 is provided in the middle of the limiting plate 102 .

[0031] In one embodiment, specifically, the second sealing mechanism 2 also includes a motor 205, a connector 206, a sealing sleeve 209 and a first sealing ring 2010, the motor 205 is clamped and fixedly connected between the fixed frame 202 and the fixed plate 203, the second sealing ring 2011 is tightly fitted on the top left end of the motor 205, the first sealing ring 2010 is fixedly connected inside the second mounting sleeve 201, and the sealing sleeve 209 is fixedly connected on the right side of the second mounting sleeve 201 close to the first sealing ring 2010, and the first extrusion telescopic rod 104 is provided inside the first mounting sleeve 101 to push the first extrusion plate 105 to extrude and seal the connection between the second mounting sleeve 201 and the first mounting sleeve 101, and the third layer of sealing is performed by combining the fixed plate 203 to extrude the motor 205 and the deformation of the second sealing ring 2011 inside the fixed frame 202.

[0032] In one embodiment, specifically, the bottom end of the outer wall of the second extrusion plate 107 is tightly fitted to the outer wall of the sealing sleeve 209, and the second extrusion plate 107 at the output end of the second extrusion telescopic rod 106 squeezes the sealing sleeve 209 to be extruded and deformed.

[0033] In one embodiment, specifically, the right end of the outer wall of the first extrusion plate 105 is tightly fitted to the left end of the second mounting sleeve 201, and the first extrusion telescopic rod 104 is provided inside the first mounting sleeve 101 to push the first extrusion plate 105 to perform extrusion sealing on the connection between the second mounting sleeve 201 and the first mounting sleeve 101, and the third layer of sealing is performed inside the fixed frame 202 through a combination of extrusion of the motor 205 by the fixed plate 203 and deformation of the second sealing ring 2011.

[0034] In one embodiment, specifically, the left end of the outer wall of the third extrusion plate 208 is tightly fitted with the right end of the first installation sleeve 101 and the left end of the sealing sleeve 209, and the third extrusion plate 208 is pushed by the third extrusion telescopic rod 207 to squeeze the first installation sleeve 101 and the sealing sleeve 209 to deform.

[0035] In one embodiment, specifically, the right end of the outer wall of the first mounting sleeve 101 is sleeved on the outer wall of the second mounting sleeve 201 , and the extrusion of the second extrusion telescopic rod 106 and the third extrusion telescopic rod 207 can be achieved when the first mounting sleeve 101 rotates.

[0036] In one embodiment, specifically, the output end of the motor 205 is fixedly connected to a connector 206, and the outer wall of the connector 206 is slidably connected to the inside of the limiting groove 103, and the third layer of sealing is performed by a combination of the fixed plate 203 squeezing the motor 205 and the deformation of the second sealing ring 2011.

[0037] When the utility model is working, the first installation sleeve 101 and the second installation sleeve 201 are sleeved together, and the inner wall of the right end of the first installation sleeve 101 is tightly fitted with two first sealing rings 2010 to achieve a first layer of sealing. When the second extrusion plate 107 at the output end of the second extrusion telescopic rod 106 squeezes the sealing sleeve 209 to extrude and deform, the third extrusion plate 208 is pushed by the third extrusion telescopic rod 207 to squeeze the first installation sleeve 101 and the sealing sleeve 209 to deform, and the second layer of sealing is achieved. The first extrusion telescopic rod 104 is arranged inside the first installation sleeve 101 to push the first extrusion plate 105 to align the second installation sleeve 201 with the third extrusion telescopic rod 207. A third layer of sealing is performed by a combination of extrusion sealing at the connection of a mounting sleeve 101 and deformation of the motor 205 by the fixing plate 203 inside the fixing frame 202 and the second sealing ring 2011. The above three layers of sealing can achieve sealing when the robot joint rotates and deforms. The extrusion of the first extruded telescopic rod 104, the second extruded telescopic rod 106 and the third extruded telescopic rod 207 can achieve that when the first mounting sleeve 101 rotates, the deformation of the elastic member can adapt to the slight displacement generated during the joint movement, thereby maintaining the sealing performance, and can effectively prevent water or dust from entering the interior of the device along the sealing gap when the first mounting sleeve 101 rotates.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A robot joint sealing protection structure, comprising a first sealing mechanism (1), a second sealing mechanism (2) and a mounting plate (3), characterized in that: The first sealing mechanism (1) comprises a first mounting sleeve (101), a first extruded telescopic rod (104), a first extruded plate (105), a second extruded telescopic rod (106) and a second extruded plate (107); the first mounting sleeve (101) is fixedly connected to the first extruded telescopic rod (104) inside, the output end of the first extruded telescopic rod (104) is fixedly connected to the first extruded plate (105); the right end inside the first mounting sleeve (101) is fixedly connected to the second extruded telescopic rod (106), and the output end of the second extruded telescopic rod (106) is fixedly connected to the second extruded plate (107); The second sealing mechanism (2) comprises a second mounting sleeve (201), a fixing frame (202), a fixing plate (203), a third extruded telescopic rod (207), a third extruded plate (208) and a second sealing ring (2011); the interior of the second mounting sleeve (201) is fixedly connected to the fixing frame (202); the right end of the fixing frame (202) is fixedly connected to a screw rod (204); the outer wall of the screw rod (204) is slidably connected to the fixing plate (203); the outer wall of the fixing frame (202) is fixedly connected to the second sealing ring (2011); the left end of the second mounting sleeve (201) is fixedly connected to the third extruded telescopic rod (207); and the output end of the third extruded telescopic rod (207) is fixedly connected to the third extruded plate (208).

2. A robot joint sealing and protection structure according to claim 1, characterized in that: The first sealing mechanism (1) further comprises a limiting plate (102) and a limiting groove (103); the limiting plate (102) is fixedly connected to the middle of the interior of the first mounting sleeve (101); and the limiting groove (103) is provided in the middle of the limiting plate (102).

3. A robot joint sealing and protection structure according to claim 1, characterized in that: The second sealing mechanism (2) further comprises a motor (205), a connector (206), a sealing sleeve (209) and a first sealing ring (2010); the motor (205) is clamped and fixedly connected between the fixing frame (202) and the fixing plate (203); the second sealing ring (2011) is tightly fitted on the top left end of the motor (205); the first sealing ring (2010) is fixedly connected inside the second installation sleeve (201); and the sealing sleeve (209) is fixedly connected on the right side of the second installation sleeve (201) close to the first sealing ring (2010).

4. A robot joint sealing and protection structure according to claim 1, characterized in that: The bottom end of the outer wall of the second extrusion plate (107) is tightly fitted to the outer wall of the sealing sleeve (209).

5. The robot joint sealing and protection structure according to claim 1, characterized in that: The right end of the outer wall of the first extrusion plate (105) is tightly fitted to the left end of the second installation sleeve (201).

6. A robot joint sealing and protection structure according to claim 1, characterized in that: The left end of the outer wall of the third extrusion plate (208) is tightly fitted with the right end of the first installation sleeve (101) and the left end of the sealing sleeve (209).

7. A robot joint sealing and protection structure according to claim 1, characterized in that: The right end of the outer wall of the first installation sleeve (101) is sleeved on the outer wall of the second installation sleeve (201).

8. The robot joint sealing and protection structure according to claim 3, characterized in that: The output end of the motor (205) is fixedly connected to a connector (206), and the outer wall of the connector (206) is slidably connected to the inside of the limiting groove (103).

Images