CN-122007610-A - Corrugated pipe joint assembling and laser girth welding device and system

CN122007610ACN 122007610 ACN122007610 ACN 122007610ACN-122007610-A

Abstract

The invention relates to the technical field of corrugated pipe joint assembly and welding automation, in particular to a corrugated pipe joint assembly and laser girth welding device and a system, wherein the device comprises: bellows feed mechanism, connector feed mechanism carries out the pneumatic internal stay anchor clamps subassembly that face contact supported tightly to the inside of bellows and connector through profile modeling clamping part, and pneumatic internal stay anchor clamps subassembly is driven by spin welding mechanism and is fed, makes the laminating of the connector at bellows and both ends and axis align the back to drive bellows and connector and carry out the synchronous circumference rotation around the axis through the laser instrument and weld the back in the hoop, spin welding mechanism drive anchor clamps subassembly and fall back, transfer the finished product after welding by the unloading mechanism of assembly station below. According to the invention, the internal support type profiling stable positioning and clamping is realized through the pneumatic internal support clamp assembly, the weld joint forming consistency and the assembly coaxial stability are improved, the deformation risk of the thin-wall corrugated pipe is reduced, and the production efficiency and the beat stability are improved.

Inventors

GUAN CHENGHUI
WANG YIFAN
WANG CHIHONG
LI SHICHUN
WU QINGYAN
CHEN HAO
CHEN PAN

Assignees

浙江蔚福科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260309

Claims (10)

1. The utility model provides a bellows coupling assembly and laser girth welding device, includes bellows feed mechanism (1) with bellows (253) carry to assembly station, its characterized in that still includes connector feed mechanism (7) with connector (252) carry to assembly station at least one end, be equipped with at least a set of pneumatic internal stay anchor clamps subassembly that carries out face contact support clamp to the inside of bellows (253) and connector (252) through profile modeling clamping part (2503) on the assembly station, pneumatic internal stay anchor clamps subassembly is driven by spin welding mechanism (2) and is fed, makes bellows (253) and connector (252) laminating and after the axis is aligned to drive bellows (253) and connector (252) around the synchronous circumference of axis, carries out the girth welding back through laser instrument (3), spin welding mechanism (2) drive pneumatic internal stay anchor clamps subassembly is retracted, is transferred the finished product after the welding by unloading mechanism (5) below the assembly station.
2. The corrugated pipe joint assembling and laser girding device according to claim 1, wherein at least two groups of pneumatic internal stay clamp assemblies are provided, and the pneumatic internal stay clamp assemblies are driven by a rotary welding mechanism (2) to relatively feed or retreat.
3. The corrugated pipe fitting and laser girding device according to claim 1, wherein said contoured gripping portion (2503) is in surface contact gripping with a contact surface comprised of at least two adjacent corrugated recesses or corrugated protrusions in an inner sidewall of said corrugated pipe (253).
4. A bellows joint assembling and laser girding apparatus according to claim 1 or 3, wherein said pneumatic inner support clamp assembly comprises a clamp body (251), a linear pneumatic driver, and at least two profiling clamp parts (2503) which are driven to open or close each other by a push rod (254) of said linear pneumatic driver, said profiling clamp parts (2503) being rotatably provided on said clamp body (251) for supporting and clamping or resetting the inside of the bellows (253) and the joint (252).
5. The bellows joint assembling and laser girding apparatus according to claim 4, wherein the opposite inner side walls of the two profile clamping portions (2503) are folded surfaces having an angle, at least a part of the folded surfaces are bonded when the two profile clamping portions (2503) are relatively closed, and the remaining parts of the two folded surfaces form a guide angle into which the push rod (254) enters, and the push rod enters the guide angle and drives the two profile clamping portions (2503) to relatively open.
6. The bellows joint fitting and laser girding device according to claim 4, wherein said push rod drives one end of said two profile clamping portions (2503) which are opened or closed with each other to gradually decrease in inner diameter in the advancing direction.
7. The corrugated pipe joint assembling and laser girding device according to claim 4, wherein the clamp main body (251) is provided with a fitting limiting portion (2502) and a horizontal supporting portion (2501), the profiling clamping portion (2503) is rotatably arranged on the horizontal supporting portion (2501) through a rotary reset structure, and the horizontal supporting portion (2501) drives the profiling clamping portion (2503) to penetrate through the connector to enter the corrugated pipe (253) until one end of the connector abuts against the fitting limiting portion (2502) and is tightly fitted with the corrugated pipe (253).
8. The corrugated pipe joint assembling and laser girding device according to claim 7, wherein at least two flexible clamping jaws (256) are provided on the clamp main body (251), one end of each flexible clamping jaw (256) is rotatably provided on the horizontal supporting portion (2501) through a rotary reset structure, and the other end of each flexible clamping jaw (256) is provided with the profiling clamping portion (2503) which is in surface contact clamping with the inner side wall of the corrugated pipe (253).
9. The corrugated pipe joint assembling and laser girding device according to claim 1, wherein the connecting head feeding mechanism (7) comprises a feeding slideway obliquely arranged to the assembling station, and a discharging baffle (71) and a blocking baffle (72) which are driven by independent double driving rods to synchronously move, wherein one side of the feeding slideway is provided with an adjusting side plate (74) for adjusting the lateral clearance.
10. A bellows joint fitting and laser girding system for use in a bellows joint fitting and laser girding apparatus as claimed in any one of claims 1 to 9, comprising: The monitoring module is used for acquiring feeding information of the corrugated pipe (253) and the connector (252); The clamping module is used for determining whether the feeding of the corrugated pipe (253) and the connector (252) is in place according to the feeding information, and controlling at least one group of pneumatic internal stay clamp assemblies to be driven to feed by the rotary welding mechanism (2) and to clamp the corrugated pipe (253) and the connector (252) in an internal stay mode when the feeding of the corrugated pipe (253) and the connector (252) is in place; The welding module is used for controlling the laser (3) to be aligned with the joint of the corrugated pipe (253) and the connector (252) to weld after the corrugated pipe (253) and the connector (252) are clamped, and controlling the rotary welding mechanism (2) to drive the clamp assembly to drive the corrugated pipe (253) and the connector (252) to synchronously rotate around the axis for one circle in the welding process so as to realize circumferential welding; And the blanking module is used for controlling the rotary welding mechanism (2) to drive the clamp assembly to retract and reset after welding at the joint of the corrugated pipe (253) and the connector (252) is finished, and transferring a welded finished product through the blanking mechanism (5).

Description

Corrugated pipe joint assembling and laser girth welding device and system Technical Field The invention relates to the technical field of corrugated pipe joint assembly and welding automation, in particular to a corrugated pipe joint assembly and laser girth welding device and a system. Background According to the existing industrial production mode, the connection between the corrugated pipe and the joint is usually realized by welding, and the typical process route is that the corrugated pipe and the joints at two ends are assembled and positioned, and then the ends are welded in a circumferential direction to form a sealed connection. The current common equipment scheme on the market is mainly argon arc welding (TIG). Firstly, a thin-wall corrugated pipe is extremely sensitive to heat input, argon arc welding belongs to an arc welding heat source, a heat affected zone is relatively large, heat stays on a workpiece for a long time, local overheating, deformation or corrugated shape change of an end part are easy to cause the reduction of coaxiality, end face fitting and weld joint forming consistency, and quality fluctuation such as insufficient fusion, penetration welding, air holes and the like is easy to occur in the welding process when an assembly gap or end face fitting is unstable, so that reworking or scrapping is caused. In addition, the traditional argon arc welding has strong dependence on assembly and positioning, namely the corrugated pipe body has large flexibility and thin wall and is easy to deform, if the clamping force, the pretightening force or the positioning reference is unstable, axial play or end surface gap change can be generated in the rotary ring welding process, so that the welding seam continuity and the sealing reliability are directly affected, and the common scheme in the market often emphasizes that the welding can be welded rather than the closed loop consistency in the whole assembly-laminating-welding process, so that the stability of mass production is insufficient. And moreover, the existing equipment has limited degree of automation, namely, the links of feeding, sequential error proofing, centering and checking of joints and corrugated pipes, transposition/beat interlocking of welding two ends sequentially, blanking and collecting after welding and the like often depend on manual or simple mechanical actions, the participation of personnel is multiple, the beat is uncontrollable, and an effective error proofing mechanism is lacking when neglected loading, incorrect loading or poor in-place condition occurs, so that shutdown, reworking and even batch quality risks are easily caused. Finally, from the production maintenance perspective, the argon arc welding has the problems of electrode abrasion, tungsten electrode pollution, welding gun posture drift, protection gas flow stability and the like which influence welding consistency in long-period continuous production, further amplifies the contradiction of process stability dependence operation experience and maintenance level, and is not beneficial to realizing high-efficiency and low-fluctuation automatic mass production. Therefore, although the prior art can complete basic welding of the corrugated pipe end joint by matching the argon arc welding with the rotary clamp, the application still has obvious defects in the aspects of heat input and deformation control, assembly and lamination consistency, two-end welding beat linkage, error prevention, automatic feeding and discharging integration and the like in the thin-wall corrugated pipe scene, and the 'joint assembly and girth welding integrated automatic production' requirement aiming at high consistency and high efficiency is difficult to meet, and the defects are the technical problems to be solved by the scheme of the application. The existing corrugated pipe joint is produced by adopting the traditional welding modes such as argon arc welding and the like, and the problems that the heat input is large, the welding forming and quality consistency is obviously influenced by manual operation, the production beat is unstable and the like are commonly existed. Disclosure of Invention In view of the above, the invention provides a corrugated pipe joint assembling and laser girth welding device and a system, which aim to solve the problems in the prior art, realize internal support type profiling stable positioning clamping and rotation through a clamp assembly to realize the structure and movement organization of laser girth welding and the like under the condition of not depending on a visual detection module, realize automatic assembling and two-end laser girth welding of the corrugated pipe joint, improve the consistency of weld formation and coaxial stability of assembling, reduce the deformation risk of a thin-wall corrugated pipe, and improve the production efficiency and beat stability. The invention provides a corrugated pipe joint assembling and laser gir