Search

CN-224223220-U - Negative pressure bolt dismounting mechanism and maintenance robot

CN224223220UCN 224223220 UCN224223220 UCN 224223220UCN-224223220-U

Abstract

The utility model belongs to the field of maintenance equipment, and particularly relates to a negative pressure bolt dismounting mechanism and a maintenance robot. The negative pressure bolt dismounting mechanism comprises an electric batch, a negative pressure sleeve and a sliding sleeve, wherein the negative pressure sleeve is hollow in the interior, an inlet is formed in one end of the negative pressure sleeve, an outlet is formed in the other end of the negative pressure sleeve, the negative pressure bolt dismounting mechanism further comprises a negative pressure inlet communicated with the hollow interior, an electric batch head of the electric batch penetrates through the inlet and the hollow interior and stretches out of the outlet, the electric batch head is in rotary sealing fit with the inlet, the sliding sleeve comprises a sliding sleeve, a sealing sliding ring and an annular suction head, the sealing sliding ring is in sliding sealing fit with the negative pressure sleeve along the axial direction of the electric batch head, the sealing sliding ring is fixedly connected with the sliding sleeve, and a suction interval is formed between the inner side of the annular suction head and the outer wall of the electric batch head stretching out of the outlet. The negative pressure bolt dismounting mechanism provided by the utility model can adapt to dynamic change of screw screwing depth and suction of screws with different specifications, so that the stability of the whole process of screwing or unscrewing the screws by the electric screwdriver head is ensured.

Inventors

  • ZHANG LIPING
  • ZHU HUAYONG
  • GAO JINGBO
  • ZHANG DI
  • ZENG LIHUA
  • Huang Zhuoxiong
  • PENG JINHAO

Assignees

  • 湖南超能机器人技术有限公司

Dates

Publication Date
20260512
Application Date
20250416

Claims (10)

  1. 1. The negative pressure bolt dismounting mechanism is characterized by comprising an electric batch (1), a negative pressure sleeve (2) and a sliding sleeve (3); The negative pressure sleeve (2) is hollow (201) in the interior, one end of the negative pressure sleeve is provided with an inlet (202) communicated with the hollow (201), the other end of the negative pressure sleeve is provided with an outlet (203) communicated with the hollow (201), and the negative pressure sleeve further comprises a negative pressure inlet (204) communicated with the hollow (201); An electric batch head (101) of the electric batch (1) penetrates through the inlet (202) and the hollow (201) and extends out of the outlet (203), an air ventilation interval (4) is formed between the outer wall of the electric batch head (101) and the inner wall of the hollow (201), and the electric batch head (101) is in rotary sealing fit with the inlet (202); The sliding sleeve (3) comprises a sliding sleeve (301), a sealing slip ring (302) and an annular suction head (303), the sliding sleeve (301) is arranged on the side of an outlet (203) of the negative pressure sleeve (2), the inner wall of the sealing slip ring (302) is in sliding sealing fit with the outer wall of the negative pressure sleeve (2) along the axial direction of the electric batch head (101), the outer wall of the sealing slip ring (302) is fixedly connected with the inner wall of the sliding sleeve (301), the outer side of the annular suction head (303) is matched with the end part of the sliding sleeve (301), and the inner side of the ring is provided with a suction interval (5) with the outer wall of the electric batch head (101) extending out of the outlet (203).
  2. 2. The negative pressure bolt dismounting mechanism according to claim 1, wherein the annular suction head (303) includes an inner cylinder (3031), a flexible deformation ring (3032) provided outside an outer end of the inner cylinder (3031), and a connection ring (3033) provided inside an outer end of the inner cylinder (3031); an avoidance circumferential seam (3034) is arranged between the flexible deformation ring (3032) and the connecting ring (3033).
  3. 3. The negative pressure bolt dismounting mechanism according to claim 2, characterized in that one end of the connecting ring (3033) facing away from the flexible deformation ring (3032) is convexly provided with a flange ring (30331); The sliding sleeve (301) comprises a main sleeve body (3011) and a fastening sleeve (3012), wherein an external thread I (30111) is arranged on the outer wall of the front end of the main sleeve body (3011), a supporting ring (30112) is inwards arranged on the end face of the front end, an internal thread I (30122) matched with the external thread I (30111) is arranged on the inner wall of the fastening sleeve (3012), and a clamping ring (30121) is inwards arranged on the end face of the outer end of the fastening sleeve (3012); When the main sleeve body (3011) and the fastening sleeve (3012) are in threaded fastening fit, the clamping ring (30121) and the supporting ring (30112) are clamped with the flange ring (30331).
  4. 4. The negative pressure bolt dismounting mechanism according to claim 3, wherein the inner wall of the main sleeve body (3011) is of a stepped hole structure, the front end of the main sleeve body is of a small hole, and the inner wall of a large hole at the rear end of the main sleeve body (3011) is provided with an internal thread II (30113); The sliding sleeve (301) further comprises a sealing slip ring fastening sleeve (3013), an external thread II (30131) is arranged on the outer wall of the sealing slip ring fastening sleeve (3013), after the external thread II (30131) is in threaded connection with the internal thread II (30113), the end part of the sealing slip ring fastening sleeve (3013) is abutted to one end of the sealing slip ring (302), and the other end of the sealing slip ring (302) is abutted to a step of the stepped hole.
  5. 5. The negative pressure bolt dismounting mechanism as claimed in any one of claims 1 to 4, further comprising an elastic return member for driving the sliding sleeve (3) always in an extended limit state.
  6. 6. The negative pressure bolt dismounting mechanism according to claim 5, wherein the outer side of the front end of the negative pressure sleeve (2) is of a stepped shaft structure, the front end of the negative pressure sleeve is of a small shaft, and the sealing slip ring (302) is in sliding sealing fit with the outer wall of the small shaft; the elastic resetting piece is a spring (7), the spring (7) is sleeved on the outer side of the small shaft, one end of the spring is abutted to the sealing slip ring (302), and the other end of the spring is abutted to the step surface of the stepped shaft.
  7. 7. The negative pressure bolt dismounting mechanism as claimed in claim 6, wherein the slide bush (301) extends to a large shaft portion of the stepped shaft.
  8. 8. The negative pressure bolt dismounting mechanism as claimed in any one of claims 1 to 4, 6, 7, further comprising an electric batch mounting sleeve (8) fixedly connected to an inlet (202) side of the negative pressure sleeve (2); The main body (102) of the electric batch (1) is fixedly arranged on the electric batch mounting sleeve (8).
  9. 9. A maintenance robot comprising a mobile robot (9), a robot arm (10) provided on the mobile robot (9), and the negative pressure bolt attaching/detaching mechanism according to any one of claims 1 to 8 provided on the robot arm (10).
  10. 10. The maintenance robot according to claim 9, wherein an elastic return mechanism (6) is further provided between the mechanical arm (10) and the negative pressure bolt attaching/detaching mechanism.

Description

Negative pressure bolt dismounting mechanism and maintenance robot Technical Field The utility model belongs to the field of maintenance equipment, and particularly relates to a negative pressure bolt dismounting mechanism and a maintenance robot. Background In the field of robot automatic assembly, especially in the scenes such as precision electronic equipment or mechanical equipment manufacturing, the traditional electric screwdriver is lack of self-adaptive adjustment capability of a robot end effector to a complex environment, the problems that screws fall off due to mechanical vibration or contact reaction force in the process of screw head alignment deviation and screwing frequently occur, the existing magnetic attraction or fixed negative pressure adsorption scheme is difficult to adapt to dynamic change of screw screwing depth, the reliability of screw fixation is insufficient, and the application efficiency of the robot in high-precision and high-stability assembly tasks is restricted. Disclosure of utility model The utility model aims to solve the technical problem of providing a negative pressure bolt dismounting mechanism and a maintenance robot which can adapt to dynamic changes of screw suction and screw screwing depth of screws with different specifications. The utility model provides a negative pressure bolt dismounting mechanism which comprises an electric batch, a negative pressure sleeve and a sliding sleeve, wherein the electric batch is arranged on the negative pressure sleeve; The negative pressure sleeve is hollow in the interior, one end of the negative pressure sleeve is provided with an inlet communicated with the hollow, and the other end of the negative pressure sleeve is provided with an outlet communicated with the hollow, and the negative pressure sleeve further comprises a negative pressure inlet communicated with the hollow; The electric batch head of the electric batch passes through the inlet and the hollow and extends out of the outlet, the outer wall of the electric batch head and the inner wall of the hollow are provided with ventilation spaces, and the electric batch head is in rotary sealing fit with the inlet; The sliding sleeve comprises a sliding sleeve, a sealing sliding ring and an annular suction head, the sliding sleeve is arranged at the outlet side, the inner wall of the sealing sliding ring is in sliding sealing fit with the outer wall of the negative pressure sleeve along the axial direction of the electric batch head, the outer wall of the sealing sliding ring is fixedly connected with the inner wall of the sliding sleeve, the outer side of the annular suction head is matched with the end part of the sliding sleeve, and the inner side of the annular suction head is provided with a suction interval with the outer wall of the electric batch head extending out of the outlet. Further, the annular suction head comprises an inner cylinder, a flexible deformation ring arranged outside the outer end of the inner cylinder and a connecting ring arranged inside the outer end of the inner cylinder; And an avoidance circular seam is arranged between the flexible deformation ring and the connecting ring. Further, one end of the connecting ring, which is away from the flexible deformation ring, is convexly provided with a flange ring; The sliding sleeve comprises a main sleeve body and a fastening sleeve, wherein an external thread I is arranged on the outer wall of the front end of the main sleeve body, a supporting ring is arranged inwards on the end face of the front end, an internal thread I matched with the external thread I is arranged on the inner wall of the fastening sleeve, and a clamping ring is arranged inwards on the end face of the outer end of the fastening sleeve; When the main sleeve body and the fastening sleeve are in threaded fastening fit, the clamping ring and the supporting ring are clamped with the flange ring. Furthermore, the inner wall of the main sleeve body is of a stepped hole structure, the front end of the main sleeve body is provided with a small hole, and the inner wall of the rear end of the main sleeve body is provided with an internal thread II; The sliding sleeve further comprises a sealing sliding ring fastening sleeve, an external thread II is arranged on the outer wall of the sealing sliding ring fastening sleeve, after the external thread II is in threaded connection with the internal thread II, the end part of the sealing sliding ring fastening sleeve is abutted to one end of the sealing sliding ring, and the other end of the sealing sliding ring is abutted to a step of the stepped hole. Furthermore, the negative pressure bolt dismounting mechanism further comprises an elastic reset piece which drives the sliding sleeve to be in an extending limit state all the time. Furthermore, the outer side of the front end of the negative pressure sleeve is of a stepped shaft structure, the front end of the negative pressure sleeve is of a