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CN-224209374-U - Welding torch clamping mechanism of automatic pipeline welding robot

CN224209374UCN 224209374 UCN224209374 UCN 224209374UCN-224209374-U

Abstract

The application provides a welding torch clamping mechanism of an automatic pipeline welding robot, which comprises a clamping bracket with a first through hole and a second through hole which are communicated, two locking pins with locking ends symmetrically arranged in the second through hole, and a driving assembly for driving the two locking pins to move along the second through hole, wherein the two locking ends are exposed in the first through hole, and when the driving assembly drives the two locking pins to approach each other, the two locking ends apply symmetrical extrusion forces with equal magnitudes to a welding torch arranged in the first through hole, so that welding torch clamping is completed.

Inventors

  • ZHANG XIANGCHAO
  • SHI SHUNCHENG
  • ZHAO XINGWEI

Assignees

  • 电王智焊科技(天津)有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (10)

  1. 1. Welding torch clamping mechanism of automatic pipeline welding robot is characterized by comprising: The welding torch comprises a clamping bracket (1), wherein a first through hole (11) and a second through hole (12) which are communicated are formed in the clamping bracket (1), the directions of extension lines of axes of the first through hole (11) and the second through hole (12) are respectively a first direction and a second direction, the first direction is perpendicular to the second direction, and the first through hole (11) is used for installing a welding torch (6); The locking assembly (2) comprises two locking pins arranged in the second through hole (12), the two locking pins are symmetrically arranged, and a locking end (23) is arranged at the end, close to the first through hole (11), of each locking pin; The driving assembly (3), the driving assembly (3) is used for driving two the locking pins to be close to each other or to be far away from each other, when two the locking pins are close to each other, two the locking ends (23) apply to the welding torch (6) along the equal resolution of third direction, the third direction is followed second through hole (12) is directed first through hole (11), and is perpendicular to first direction and second direction.
  2. 2. The welding torch clamping mechanism of the automatic pipeline welding robot according to claim 1, wherein each locking pin is provided with a threaded hole, the rotation directions of the two threaded holes are opposite and the thread pitches are equal, the driving assembly (3) comprises a locking bolt (31) penetrating through the two threaded holes, the outer wall of the locking bolt (31) is provided with external threads matched with the two threaded holes, and the welding torch clamping mechanism further comprises a limiting assembly used for limiting the rotation of the locking pins when the driving assembly (3) drives the two locking pins to move.
  3. 3. The welding torch clamping mechanism of the automatic pipeline welding robot according to claim 2, wherein the limiting assembly comprises limiting grooves (13) arranged on the inner wall of the second through hole (12), the extending direction of the limiting grooves (13) is the second direction, and limiting pieces (22) matched with the limiting grooves (13) are arranged on the outer wall of each locking pin.
  4. 4. A robotic welding torch clamping mechanism as claimed in claim 1, wherein said locking end (23) has a curved surface matching the outer wall of said welding torch (6).
  5. 5. The robotic welding torch fixture of claim 2, further comprising a first anti-slip assembly for the locking bolt (31) and locking pin to be disengaged from the second through hole (12).
  6. 6. The welding torch clamping mechanism of the automatic pipeline welding robot according to claim 5, wherein the first anti-falling assembly comprises a first disc (41) arranged at one end of the locking bolt (31) and a second disc (42) sleeved outside the other end of the locking bolt (31) and in threaded connection with the locking bolt, and the first disc (41) and the second disc (42) are respectively arranged outside the clamping bracket (1) along the second direction.
  7. 7. The welding torch clamping mechanism of the automatic pipeline welding robot according to claim 6, wherein a second anti-falling component (5) is arranged on the side, away from the clamping bracket (1), of the second disc (42), and the second anti-falling component (5) is used for preventing the second disc (42) from falling out of the locking bolt (31).
  8. 8. The welding torch clamping mechanism of a pipe automatic welding robot according to claim 6, characterized in that a splash guard (421) is provided on the side of the second disc (42) close to the first disc (41), and the splash guard (421) is used for preventing welding slag from entering the second through hole (12).
  9. 9. The welding torch clamping mechanism of the automatic pipeline welding robot according to claim 2, wherein the outer wall of the locking bolt (31) is subjected to an electrophoresis process.
  10. 10. The robotic welding torch fixture of claim 6, wherein an inner diameter of the threaded bore of the locking pin proximate the first disc (41) is greater than an inner diameter of the threaded bore of the locking pin proximate the second disc (42).

Description

Welding torch clamping mechanism of automatic pipeline welding robot Technical Field The application relates to the technical field of pipeline welding, in particular to a welding torch clamping mechanism of an automatic pipeline welding robot. Background The automatic pipeline welding robot is widely applied to welding operations in the fields of oil gas pipelines, ships, steel structures and the like, a welding torch is one of core execution components of the automatic pipeline welding robot, and is responsible for conducting current, conveying welding materials and controlling the generation and stable combustion of electric arcs in the welding process, and the working state of the automatic pipeline welding robot directly influences the welding quality. The welding torch clamping mechanism plays a critical role as a key component for connecting the welding torch with the pipeline automatic welding robot, and not only is the welding torch ensured to maintain a stable posture in the movement process of the robot, but also the swing of the welding torch needs to be flexibly controlled, so that the welding torch can accurately perform welding operation in a working area. The patent with publication number CN219026419U discloses a welding torch clamping mechanism of a pipeline all-position welding machine, which comprises a welding torch locking assembly, a welding torch quick assembly disassembly assembly and a welding torch angle adjusting assembly, wherein the welding torch locking assembly drives a locking bolt to push through a handle, a welding torch jacket is forced to shrink, a wear-resistant block and a spring retainer ring are utilized to clamp the welding torch, and a locking nut is fixed to form rigid constraint. The jacket is only contracted and clamped by a bolt at one side, the stress of the welding torch is asymmetric, and the welding torch is easy to deviate under long-term vibration. Disclosure of Invention In view of the foregoing drawbacks or deficiencies of the prior art, the present application is directed to a robotic welding torch clamping mechanism for automatic pipe welding, comprising: The welding torch comprises a clamping bracket, a welding rod and a welding rod, wherein the clamping bracket is provided with a first through hole and a second through hole which are communicated, the directions of extension lines of axes of the first through hole and the second through hole are respectively a first direction and a second direction, the first direction is perpendicular to the second direction, and the first through hole is used for installing the welding torch; the locking assembly comprises two locking pins arranged in the second through hole, the two locking pins are symmetrically arranged, and a locking end is arranged at the end, close to the first through hole, of each locking pin; The driving assembly is used for driving the two locking pins to be close to each other or far away from each other, when the two locking pins are close to each other, the two locking ends apply the equal decomposition force along a third direction to the welding torch, and the third direction is along the second through hole is pointed to the first through hole and is perpendicular to the first direction and the second direction. According to the technical scheme provided by the embodiment of the application, each locking pin is provided with a threaded hole, the rotation directions of the two threaded holes are opposite, the thread pitches are equal, the driving assembly comprises a locking bolt penetrating through the two threaded holes, the outer wall of the locking bolt is provided with external threads matched with the two threaded holes, and the driving assembly further comprises a limiting assembly, wherein the limiting assembly is used for limiting the rotation of the locking pins when the driving assembly drives the two locking pins to move. According to the technical scheme provided by the embodiment of the application, the limiting assembly comprises limiting grooves arranged on the inner walls of the second through holes, the extending direction of the limiting grooves is the second direction, and the outer walls of the locking pins are provided with limiting pieces matched with the limiting grooves. According to the technical scheme provided by the embodiment of the application, the locking end is provided with a curved surface matched with the outer wall of the welding torch. According to the technical scheme provided by the embodiment of the application, the locking device further comprises a first anti-falling assembly, wherein the first anti-falling assembly is used for allowing the locking bolt and the locking pin to fall out of the second through hole. According to the technical scheme provided by the embodiment of the application, the first anti-falling assembly comprises a first disc arranged at one end of the locking bolt and a second disc sleeved outside the other end of the l