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CN-121988882-A - Laser guiding type steel cylinder welding production line with heat treatment structure

CN121988882ACN 121988882 ACN121988882 ACN 121988882ACN-121988882-A

Abstract

The invention relates to the technical field of steel cylinder production, in particular to a laser guided steel cylinder welding production line with a heat treatment structure. According to the invention, the two electric heaters are symmetrically arranged in the heating part front and back and respectively set different heating temperatures, so that preheating and dehydrogenation heat treatment are synchronously finished before and after laser welding, the risk of welding cold cracks is effectively reduced, hydrogen element escape is accelerated, and the weld quality is improved.

Inventors

  • YANG GUOFENG

Assignees

  • 杭州余杭獐山钢瓶有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (10)

  1. 1. The laser guided steel cylinder welding production line with the heat treatment structure comprises a positioning system for clamping the head and the tail of a steel cylinder, and a laser welding system is arranged at the front side of the positioning system, and is characterized in that a steel cylinder treatment device is arranged below a clamping area of the positioning system, and comprises a driving part, a peeling part arranged above the driving part and used for polishing a steel cylinder circumferential seam, and a pair of heating parts which are arranged outside the peeling part and are symmetrically distributed in the front-back direction; The peeling part comprises a bending frame driven by a second air cylinder, a clamping plate sliding on the outer wall of a vertical plate of the bending frame, a sander fixed in the clamping plate and used for removing impurities on the surface of the steel cylinder, two overhanging frames symmetrically welded at the right end part of the bending frame, and a deflector rod clamped and fixed at the end part of the overhanging frames, and the sander is driven by the second air cylinder to upwards approach the steel cylinder to perform surface peeling treatment; The heating part comprises a bottom frame sleeved on the outer side of the overhanging frame and an electric heater which moves along with the bottom frame and is used for heating a welding seam of the steel cylinder, a guide groove for sliding a deflector rod is penetratingly arranged on the outer wall of the bottom frame, the guide groove is inclined downwards, and the chute section is inclined downwards towards the direction far away from the leather part; After peeling treatment is completed, the second cylinder drives the bending frame to move downwards, the deflector rod is abutted against the chute section of the guide groove after the sander is far away from the steel bottle, and the bottom frame is poked to drive the electric heater to be close to the steel bottle for heating and hydrogen eliminating treatment.
  2. 2. The laser guided steel cylinder welding production line with the heat treatment structure of claim 1, wherein the positioning system comprises a base, a fixed frame fixedly connected to the top surface of the base through bolts and a pair of positioning boxes slidingly connected to the top surface of the fixed frame, a first motor is fixedly connected to the left outer wall of the positioning box on the left side through bolts, and a first cylinder is fixedly connected to the right outer wall of the positioning box on the right side through bolts.
  3. 3. The laser-guided steel cylinder welding production line with the heat treatment structure of claim 2, wherein the partition plates are welded at positions, close to the left side and the right side, of the inner frame wall of the fixed frame, a fixed disc for clamping a steel cylinder is coaxially connected to an output shaft of the first motor, a rotating disc for limiting the steel cylinder is rotatably connected to a movable rod of the first cylinder, and after the steel cylinder is limited on the fixed disc by the rotating disc driven by the first cylinder, the fixed disc is driven by the first motor to rotate clockwise.
  4. 4. The laser guided steel cylinder welding production line with the heat treatment structure of claim 3, wherein the laser welding system comprises a mechanical arm fixedly connected to the top surface of the base through a bolt and a welding gun fixedly connected to the end part of the mechanical arm through the bolt, and a laser guiding mechanism is arranged on the outer side of the welding gun and used for identifying and positioning a steel cylinder welding seam to be welded through a laser welding seam tracking principle so as to realize real-time alignment and correction of the welding gun and the welding seam.
  5. 5. The laser-guided steel cylinder welding production line with the heat treatment structure of claim 4, wherein the driving part comprises a second motor fixedly connected to the outer wall of the left partition plate inside the fixed frame through bolts, a screw rod coaxially connected to an output shaft of the second motor, a bottom plate slidingly connected to the top surface of the fixed frame, a shaft seat fixedly connected to the bottom surface of the bottom plate through bolts and a guide rail welded and fixed to the top surface of the bottom plate.
  6. 6. The laser guided steel cylinder welding production line with the heat treatment structure of claim 5, wherein the right end of the screw rod is rotatably connected to the inside of a right partition plate inside the fixed frame, and the shaft seat is in threaded connection with the screw rod.
  7. 7. The laser guided steel cylinder welding production line with the heat treatment structure of claim 6, wherein the second cylinder is fixedly connected to the bottom surface of the bottom plate through bolts, the bending frame is fixedly clamped at the end part of the movable rod of the second cylinder, a chute for sliding connection of a clamping plate is formed in a vertical plate of the bending frame, and a T-shaped block body which is in sliding connection with the chute is integrally formed at the end part of the clamping plate.
  8. 8. The laser guided steel cylinder welding production line with the heat treatment structure of claim 7, wherein the peeling part further comprises a telescopic rod clamped and fixed on the top surface of the left transverse plate of the bending frame and a spring sleeved on the outer side of the telescopic rod, the bottom surface of the clamping plate is clamped and fixed with the telescopic rod, and the elastic force provided by the spring pushes the clamping plate to move upwards.
  9. 9. The laser guided steel cylinder welding production line with the heat treatment structure of claim 8, wherein the heating part further comprises a sliding block which is connected to the top surface of the guide rail in a sliding way and a connecting frame which is fixedly connected to the top surface of the bottom frame through a screw and has an L-shaped longitudinal section, and the bottom frame is welded and fixed on the top surface of the sliding block.
  10. 10. The laser guided steel cylinder welding production line with the heat treatment structure of claim 9, wherein the external support of the electric heater is fixedly connected to the top end of the connecting frame through screws, the heating temperature of the electric heater on the front side is higher than that of the electric heater on the rear side, the electric heater on the rear side is used for carrying out preheating treatment on a steel cylinder welding line, and the electric heater on the front side is used for carrying out online dehydrogenation treatment on a welded circular seam.

Description

Laser guiding type steel cylinder welding production line with heat treatment structure Technical Field The invention relates to the technical field of steel cylinder production, in particular to a laser guiding type steel cylinder welding production line with a heat treatment structure. Background At present, the steel cylinder is welded mainly by adopting an automatic laser welding technology, and the welding seam is tracked in real time through a vision or sensor system, so that the positioning precision and the welding efficiency are obviously improved. However, steel cylinder welds are prone to hardening and residual stresses during rapid fusion. Existing laser guided welding equipment typically focuses only on precise positioning, without integrating synchronized heat treatment structures. The utility model provides a patent application that application number is CN202311041844.6 has published a nitrogen gas circulating device for low temperature gas bottle production line, including the conveyer belt, equal fixed mounting has the baffle on the both sides of conveyer belt, evenly carries on the conveyer belt has the steel bottle, the corresponding end of two baffles all is provided with the cambered surface with steel bottle looks adaptation, two baffles are the mirror image setting, start two first hydraulic telescoping rods, two first hydraulic telescoping rods are the shrink motion simultaneously and drive two second bull sticks and all keep away from two first U-shaped piece one end downward movement, and then carry out 90 rotation with rotating platform, carry out 90 rotation with the steel bottle, be convenient for enter into the welded area with the steel bottle, round trip transport steel bottle operation flow has been reduced. However, the existing laser guided steel cylinder welding production line is usually only focused on the accurate positioning and tracking of welding seams, lacks an integrated structure for preheating and post-welding hydrogen elimination heat treatment on steel cylinder circumferential seams, leads to concentrated heat input and high cooling speed in the welding process, is easy to generate hardening tissues and residual stress on the welding seams, cannot reduce the risk of cold cracks through preheating and timely eliminate the influence of hydrogen embrittlement after welding, thereby influencing the welding quality and the safety of steel cylinder use, and meanwhile, lacks an automatic connection structure between surface treatment and subsequent procedures, requires additional power to realize procedure conversion, and restricts the automation level of the production line. In view of this, we propose a laser guided steel cylinder welding line with heat treatment structure. Disclosure of Invention The invention aims to provide a laser-guided steel cylinder welding production line with a heat treatment structure, which realizes the synchronous completion of preheating and dehydrogenation heat treatment before and after laser welding by symmetrically arranging two electric heaters in the front and back of a heating part so as to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: The laser guided steel cylinder welding production line with the heat treatment structure comprises a positioning system for clamping the head and the tail of a steel cylinder, wherein the front side of the positioning system is provided with the laser welding system, a steel cylinder treatment device is arranged below a clamping area of the positioning system, and the steel cylinder treatment device comprises a driving part, a peeling part and a pair of heating parts, wherein the peeling part is arranged above the driving part and used for polishing a steel cylinder circumferential seam, and the heating parts are arranged outside the peeling part and are symmetrically distributed in the front-back direction; The peeling part comprises a bending frame driven by a second air cylinder, a clamping plate sliding on the outer wall of a vertical plate of the bending frame, a sander fixed in the clamping plate and used for removing impurities on the surface of the steel cylinder, two overhanging frames symmetrically welded at the right end part of the bending frame, and a deflector rod clamped and fixed at the end part of the overhanging frames; in the arrangement, the bending frame is driven by the second air cylinder to drive the sander to be upwards close to the steel cylinder for surface peeling treatment; The heating part comprises a bottom frame sleeved on the outer side of the overhanging frame and an electric heater which moves along with the bottom frame and is used for heating a welding seam of the steel cylinder, a guide groove for sliding a deflector rod is penetratingly arranged on the outer wall of the bottom frame, the guide groove is inclined downwards, and the chute section is inclined downwa