CN-122007739-A - Portable tube plate welding device and working method thereof

CN122007739ACN 122007739 ACN122007739 ACN 122007739ACN-122007739-A

Abstract

The invention relates to a portable tube plate welding device which comprises a support column, wherein the bottom end of the support column is provided with a clamping mechanism which is beneficial to clamping the bottom end of the support column on a circular tube of a mounting base of a tube plate to be welded, the support column is also provided with a support which is driven to rotate by an electric mechanism, the support is provided with a welding gun clamp provided with a welding gun, and the welding gun clamp is provided with an adjusting mechanism used for adjusting the posture and the position of the welding gun. The device has the advantages of reasonable and compact structural design, no external large frame, small volume, convenient carrying, convenient and fast multi-directional adjustment of welding angles, adaptation of welding of tube plates of different specifications to a certain extent, positioning by clamping the device on the circular tube, positioning by the device by using the circular tube without additionally occupying other spaces beside the periphery of the whole tube plate, and further realizing the welding of the tube plates in a narrow space of a certain extent, thereby being beneficial to meeting the requirements of multi-scene welding.

Inventors

HUANG DONG
FU XIAOKAI
HUANG XIANGKAI
FAN YAMING
HU JIANYUE
YU MANMAN
ZHANG CHONG
XU WENQIAN
WU JIE
ZHANG XINTING

Assignees

福建省特种设备检验研究院

Dates

Publication Date: 20260512
Application Date: 20260325

Claims (10)

1. The portable tube plate welding device is characterized by comprising a support column, wherein the bottom end of the support column is provided with a clamping mechanism so as to be beneficial to clamping the bottom end of the support column on a circular tube of an installation base of a tube plate to be welded; The support column is further provided with a support driven to rotate by an electric mechanism, the support is provided with a welding gun clamp provided with a welding gun, and the welding gun clamp is provided with an adjusting mechanism for adjusting the posture and the position of the welding gun.
2. The portable tube sheet welding apparatus as claimed in claim 1 wherein the clamping mechanism includes a jaw assembly and further includes a drive assembly for controlling clamping or unclamping of the jaw assembly.
3. The portable tube sheet welding device according to claim 2, wherein the support column is hollow, the claw assembly comprises a plurality of claw-shaped members circumferentially uniformly distributed at the bottom end of the support column, the claw-shaped members are elastic claw pieces, the top ends of the elastic claw pieces are all fixed on the inner wall of the bottom end of the support column, the bottom ends of the elastic claw pieces extend downwards to the lower part of the bottom end of the support column, and the elastic claw pieces are all obliquely expanded from top to bottom and outwards, and clamping convex parts are fixedly arranged at the outer sides of the bottom ends of the elastic claw pieces.
4. The portable tube plate welding device according to claim 3, wherein the driving assembly comprises a main shaft which is used for coaxially stretching inside the supporting column, the bottom end of the main shaft penetrates through a plurality of claw-shaped members and is fixedly provided with a head, the outer diameter of the head is larger than that of the main shaft, the joint of the head and the main shaft is in transitional joint through a conical surface, the top end of the supporting column is fixedly provided with an upper cover, the upper cover is fixedly connected with an electric push rod, the telescopic rod of the electric push rod is downwards and is coaxially and fixedly connected with the top end of the main shaft, the periphery of the bottom end of the supporting column is coaxially sleeved with a positioning ring, the outer diameter of the positioning ring is larger than that of a circular tube, and the periphery of the positioning ring is in threaded connection with a first set screw for radially propping up the supporting column.
5. The portable tube sheet welding device as claimed in claim 1, wherein the support is mounted on a support column through a bearing, the electric mechanism comprises a fixed gear which is coaxial with a rotation axis of the support column and fixedly connected to the support column, a movable gear is mounted on the periphery of the fixed gear in a meshed manner, the movable gear is driven to rotate by a motor, a machine body of the motor is fixedly connected to a motor base, and the motor base is fixedly connected to the support column.
6. The portable tube plate welding device according to claim 1, wherein the adjusting mechanism comprises an adjusting frame positioned at the bottom of the bracket, a vertical adjusting frame rotating shaft is fixedly arranged at the top end of the adjusting frame, the adjusting frame rotating shaft is rotatably arranged on the bracket, a second set screw for radially propping up the adjusting frame rotating shaft is screwed on the side portion of the bracket, a lifting seat body is connected to the adjusting frame through a vertically-guided sliding block sliding rail moving pair, a vertical screw rod is screwed on the lifting seat body, the screw rod is rotatably arranged on the adjusting frame, and the bottom end of the screw rod extends to the lower portion of the adjusting frame and is fixedly provided with an adjusting knob.
7. The portable tube sheet welding device of claim 6, wherein an axial horizontal protruding shaft is fixedly arranged on the outer side part of the lifting seat body, a hoop is arranged on the protruding shaft, the hoop comprises a first hoop body and a second hoop body, protruding shaft arc-shaped grooves matched with the protruding shaft are formed in the first hoop body and the second hoop body, and locking is carried out between two end sides of the first hoop body and the second hoop body through bolts so as to be beneficial to clamping the protruding shaft between the two protruding shaft arc-shaped grooves.
8. The portable tube sheet welding device of claim 7, wherein a welding gun base is arranged at the bottom of the second hoop body, a straight groove strip is arranged on the welding gun base and is perpendicular to the convex shaft, an internal threaded hole is formed in the bottom of the second hoop body, and a fastening screw is arranged on the straight groove strip and is screwed on the internal threaded hole to fasten the second hoop body and the welding gun base.
9. The portable tube sheet welding device of claim 8, wherein the welding gun clamp comprises a welding gun clamping seat, the welding gun clamping seat comprises a first seat body and a second seat body, arc-shaped welding gun grooves used for being matched with a welding gun are formed in the first seat body and the second seat body, the first seat body and the second seat body are locked through bolts so as to be beneficial to clamping the welding gun between the arc-shaped welding gun grooves, a sensor mounting seat is fixedly connected to a welding gun main body close to a welding head of the welding gun, an anti-collision sensor is mounted on the sensor mounting seat, and the welding gun is externally connected with welding equipment.
10. A method of operating a portable tubesheet welding apparatus according to any of claims 1-9, comprising the steps of: s1, adjusting the position of a positioning ring on a support column by loosening and tightening a first set screw according to the depth of a circular tube, so that the positioning ring is supported on a pipe orifice of the circular tube when the bottom end of the support column is coaxially embedded into the circular tube of a mounting base of a tube plate to be welded; S2, the electric push rod drives the main shaft to move upwards, the end head at the bottom end of the main shaft abuts against the inner sides of the claw-shaped members and extrudes the claw-shaped members outwards, and finally, the clamping convex parts of the claw-shaped members are clamped on the inner pipe wall of the circular pipe; S3, clamping a welding gun on a welding gun clamping seat, locking the first seat body and the second seat body, and checking whether the anti-collision sensor works normally or not; S4, starting a motor, driving a movable gear to rotate by the motor, driving a bracket to rotate around a support column through gear engagement, and stopping after adjusting to a welding starting position; S5, according to welding requirements, the adjusting frame can be rotated by tightening a second set screw to adjust the inclination angle, the lifting seat body is driven to be lifted and adjusted by rotating the adjusting knob, the direction of the welding gun can be adjusted along the convex shaft by tightening a bolt of the hoop in a rotating manner, the welding gun is ensured to be aligned to the welding position, and the distance between the welding gun and the welding position can be adjusted along the straight groove strip by tightening the set screw; S6, starting welding equipment to perform welding operation, starting a motor at the same time, driving a movable gear to rotate by the motor, and driving a bracket to rotate around a supporting column through gear engagement so as to rotationally weld a tube plate of a welding gun; and S7, when all welding operations are completed, the motor and the welding equipment are closed, the end head of the main shaft is lowered, and the claw-shaped members are loosened, so that the device can be removed.

Description

Portable tube plate welding device and working method thereof Technical Field The invention relates to a portable tube plate welding device and a working method thereof, and relates to the technical field of tube plate welding. Background Welding, also known as fusion welding, is a manufacturing process and technique that joins metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure. Although many automation workshops have been used to implement automated welding, manual welding is still required in many occasions (such as ships, etc.), in order to improve the practicability of the welding device, some tube sheet welding devices have been known, such as CN222176455U, which is a tube sheet welding device in chinese patent, and includes a base, a mechanical arm and a welding member, the mechanical arm is mounted on the base, the welding member is mounted at the end of the mechanical arm, and a quick-release mechanism is connected between the mechanical arm and the welding member, where the quick-release mechanism includes a first connection plate fixedly mounted at the end of the mechanical arm and a second connection plate fixedly mounted at the upper end of the welding member. Although this patent has solved the inconvenient technical problem of dismantlement when weldment later stage trouble shooting, has promoted the convenience of maintenance, but its still is not enough on the convenience of whole operation, for example when facing different specification tube sheet welding, the process of adjusting welder position in order to adapt to the welding demand is not enough high-efficient, and equipment structure is compact nimble inadequately, and is bulky, not only is inconvenient enough in invoking the handling, also is difficult to carry out tube sheet welding in the narrow and small space of certain degree, fails to further simplify the operation flow in order to adapt to more swift welding operation. Disclosure of Invention In view of the defects in the prior art, the technical problem to be solved by the invention is to provide a portable tube plate welding device and a working method thereof. In order to solve the technical problems, the technical scheme of the invention is that the portable tube plate welding device comprises a support column, wherein the bottom end of the support column is provided with a clamping mechanism so as to be beneficial to clamping the bottom end of the support column on a circular tube of a mounting base of a tube plate to be welded; The support column is further provided with a support driven to rotate by an electric mechanism, the support is provided with a welding gun clamp provided with a welding gun, and the welding gun clamp is provided with an adjusting mechanism for adjusting the posture and the position of the welding gun. Preferably, the clamping mechanism comprises a jaw assembly and further comprises a driving assembly for controlling clamping or loosening of the jaw assembly. Preferably, the inside cavity of support column, jaw subassembly includes the claw-shaped component of a plurality of circumference equipartitions in the support column bottom, claw-shaped component is the elasticity claw piece, the top of elasticity claw piece is all fixed on the bottom inner wall of support column, the bottom of elasticity claw piece all extends to the bottom below of support column downwards, just elasticity claw piece all from upward down outwards expands to clamping convex part has all been set firmly in its bottom outside. Preferably, the driving assembly comprises a main shaft which is used for coaxially stretching out and drawing back inside the supporting column, wherein the bottom end of the main shaft penetrates through a plurality of claw-shaped members and is fixedly provided with an end head, the outer diameter of the end head is larger than that of the main shaft, the joint of the end head and the main shaft is in transitional joint through a conical surface, the top end of the supporting column is fixedly provided with an upper cover, an electric push rod is fixedly connected to the upper cover, a telescopic rod of the electric push rod is downwards connected with the top end of the main shaft in a coaxial and fixed mode, a positioning ring is coaxially sleeved on the peripheral part of the bottom end of the supporting column, the outer diameter of the positioning ring is larger than that of a circular tube, and a first set screw is screwed on the peripheral side part of the positioning ring and used for radially propping against the supporting column. Preferably, the support is mounted on the support column through a bearing, the electric mechanism comprises a fixed gear which is coaxial with the rotation axis of the support and fixedly connected to the support column, a movable gear is mounted on the periphery of the fixed gear in a meshed manner, the movable gear is driven to rotate by a motor, a m