CN113579412A

CN113579412A - Automatic circumference welding machine for welding oil collecting pipe and radiating fin

Info

Publication number: CN113579412A
Application number: CN202110946899.6A
Authority: CN
Inventors: 张�诚; 惠智刚; 刘俊恺; 彭振兴; 邓伟东
Original assignee: Guangzhou Zhiqin Industrial Equipment Co ltd
Current assignee: Guangzhou Zhiqin Industrial Equipment Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-11-02
Anticipated expiration: 2041-08-18
Also published as: CN113579412B

Abstract

The invention discloses an automatic circumferential welding machine for welding oil collecting pipes and radiating fins, which comprises a welding device and a tool positioning device for positioning the positions of two oil collecting pipes and a plurality of radiating fins, wherein two ends of the tool positioning device are symmetrically provided with two welding rail devices, the two welding rail devices respectively comprise a turnover mechanism for controlling the welding device to perform circumferential welding, a first moving module for controlling the welding device to horizontally move and a second moving module for controlling the welding device to perform shrinkage welding, the turnover mechanism is arranged on the tool positioning device, the first moving module is arranged on the turnover mechanism along the length direction of the turnover mechanism, the second moving module is arranged on the first moving module in a transmission manner, and the second moving module is connected with the welding device in a transmission manner. The invention has the advantages of good welding quality, capability of effectively improving welding efficiency and the like.

Description

Automatic circumference welding machine for welding oil collecting pipe and radiating fin

Technical Field

The invention relates to the field of welding machines, in particular to an automatic circumference welding machine for welding an oil collecting pipe and a radiating fin.

Background

The finned radiator is commonly used for radiating heat of equipment such as a transformer, a transmission and the like, can radiate heat generated in the equipment into ambient air, mainly comprises a left oil collecting pipe, a right oil collecting pipe, a plurality of radiating fins arranged between the two oil collecting pipes in parallel and the like, and is an important process in the production process of the finned radiator by welding the plurality of radiating fins between the two oil collecting pipes.

As shown in fig. 1, fig. 1 is a partial enlarged view of a welding portion between a heat sink and an oil collecting pipe of a finned radiator in the prior art, which includes a heat sink 100, an oil collecting pipe 200, and a welding seam 300 formed by melting welding wires symmetrically arranged on two sides of the heat sink 100, wherein a moving track of a welding gun is an arc shape around the outer periphery of the oil collecting pipe 200, and arc starting and arc receiving positions require shrink welding, and a welding path is complicated.

How to solve the above problems is a technical problem to be solved urgently.

Disclosure of Invention

The invention aims to provide an automatic circumference welding machine for welding an oil collecting pipe and a radiating fin, which has good welding quality and can effectively improve the welding efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an automatic circumferential welding machine for welding oil collecting pipes and radiating fins, which comprises a welding device and a tool positioning device for positioning the positions of two oil collecting pipes and a plurality of radiating fins, wherein two ends of the tool positioning device are symmetrically provided with two welding rail devices, the two welding rail devices respectively comprise a turnover mechanism for controlling the welding device to perform circumferential welding, a first moving module for controlling the welding device to horizontally move and a second moving module for controlling the welding device to perform shrinkage welding, the turnover mechanism is arranged on the tool positioning device, the first moving module is arranged on the turnover mechanism along the length direction of the turnover mechanism, the second moving module is arranged on the first moving module in a transmission manner, and the second moving module is connected with the welding device in a transmission manner.

Further, welding set includes the welding stand, the welding stand removes the module transmission with the second and is connected and this welding stand upper end symmetry installs two sets of welding mechanism that send silk, two it all includes welder, the wire feeder, the wire reel that are used for carrying the welding wire to send a welding mechanism, wherein, welder, send a silk machine, wire reel install on the welding stand in proper order, the winding has welding wire and this wire reel and welding stand normal running fit on the wire reel, send a silk machine to keep away from wire reel one end and be connected with the pipeline that send that is used for guiding welding wire direction of delivery, send a pipeline one end and send a silk machine intercommunication and this wire feeder other end to extend to welder's welding nozzle department.

Further, the tool positioning device comprises a positioning main body, two groups of supporting brackets used for supporting the oil collecting pipe are symmetrically arranged at two ends of the positioning main body, a plurality of slot beams are arranged on the top surface of the positioning main body in parallel, a plurality of slots with two through ends are formed in each slot beam, the slots are arranged at equal intervals along the length direction of the slot beams, and each slot is respectively spliced with each radiating fin.

Furthermore, the turnover mechanism comprises two racks symmetrically arranged on two sides of the positioning main body, a v-21274is rotatably arranged between the two racks, a speed reduction motor is arranged on the shaped turnover frame and one of the racks, the first movable module is arranged on the turnover frame along the length direction of the turnover frame, one end of the turnover frame is in transmission connection with the speed reduction motor, and the other end of the turnover frame is rotatably connected with the adjacent rack through a rotating shaft.

Further, the rotating shaft of the roll-over stand coincides with the central shaft of the oil collecting pipe.

Further, first removal module, second remove the module and are servo slip table.

Due to the adoption of the structure, the invention has the following beneficial effects:

according to the welding device, the two oil collecting pipes and the plurality of radiating fins can be fixed on the tool positioning device according to the positions of the finned radiators through the tool positioning device, then the welding device is controlled to weld the oil collecting pipes and the radiating fins through the two welding rail devices, the welding efficiency can be effectively improved, when each radiating fin is welded, the welding device is controlled to do circular motion along the periphery of the oil collecting pipes through the turnover mechanism, meanwhile, the welding device is controlled to do linear motion through the second moving module, therefore, arc-shaped welding seams which are wound around the periphery of the oil collecting pipes and are contracted at arc starting and arc stopping positions are welded, the welding tracks of the radiating fins and the oil collecting pipes which need to be welded are matched with the welding seams, and the welding quality is effectively improved.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a partially enlarged view of a welding portion between a heat sink and an oil collecting pipe of a finned heat sink in the prior art;

FIG. 2 is an overall structural view of the present invention;

FIG. 3 is a schematic view of the welding apparatus of the present invention;

fig. 4 is a top view of the heat sink and oil collector of the present invention mounted on a tooling fixture.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the invention provides an automatic circumferential welding machine for welding oil collecting pipes and heat dissipation fins, comprising a welding device 1, a tooling positioning device 2 for positioning the positions of two oil collecting pipes 200 and a plurality of heat dissipation fins 100, two rail welding devices are symmetrically arranged at two ends of the tool positioning device 2, each rail welding device comprises a turnover mechanism 3 for controlling the welding device 1 to perform circumferential welding, a first moving module 4 for controlling the welding device 1 to horizontally move, and a second moving module 5 for controlling the welding device 1 to perform shrinkage welding, wherein the turnover mechanism 3 is arranged on the tool positioning device 2, the first moving module 4 is arranged on the turnover mechanism 3 along the length direction of the turnover mechanism 3, the second moving module 5 is installed on the first moving module 4 in a transmission manner, and the second moving module 5 is connected with the welding device 1 in a transmission manner. When in use, the two oil collecting pipes 200 and the plurality of radiating fins 100 are fixed on the tool positioning device and arranged according to the positions of the finned radiators, after the first moving module 4 drives the welding device 1 to move to a preset position along the length direction of the oil collecting pipe 200, the turnover mechanism 3 drives the welding device 1 to turn over so that the welding tip of the welding device 1 is aligned with the welding starting point of the welding position between the end of the radiating fin 100 and the oil collecting pipe 200, then the welding device 1 is started to weld, in the welding process, the turnover mechanism 3 drives the welding device 1 to turn over and the second moving module 5 drives the welding device 1 to move linearly, finally, the arc-shaped welding seam 300 which surrounds the periphery of the oil collecting pipe 200 and is contracted at the arc starting position and the arc stopping position is welded, the welding of the heat sink 100 to the oil collecting pipe 200 is performed in accordance with the welding of the heat sink to the oil collecting pipe.

In the invention, the welding device 1 comprises a welding frame 11, the welding frame 11 is in transmission connection with the second mobile module 5, two groups of wire feeding welding mechanisms are symmetrically arranged at the upper end of the welding frame 11, and the two groups of wire feeding welding mechanisms are symmetrically matched and can simultaneously weld two sides of the radiating fin 100; two send a welding mechanism all includes welder 12, the wire feeder 13, the wire reel 14 that are used for carrying the welding wire, wherein, welder 12, wire feeder 13, wire reel 14 are installed on welding frame 11 in proper order, the winding has welding wire and this

wire reel

14 and 11 normal running fit of welding frame on the wire reel 14, wire feeder 13 keeps away from 14 one end of wire reel and is connected with the wire feed pipeline 15 that is used for guiding welding wire direction of delivery, 15 one end of wire feed pipeline and wire feeder 13 intercommunication and this wire feed pipeline 15 other end extend to welder 12's welding nozzle department. Two the wire feeding welding mechanism cooperatees, and when using, wire feeder 13 provides power, and the drive welding wire is carried along sending a pipeline 15 to welder 12 direction, drives wire reel 14 rotation and the continuous release welding wire, and the one end of keeping away from wire reel 7 when the welding wire is carried outside sending a pipeline 15, and the high temperature that the end was released by welder 8 melts and forms the welding slag and is used for the welding.

In the invention, the tooling positioning device 2 comprises a positioning main body 21, two groups of supporting brackets 22 for supporting the oil collecting pipe 200 are symmetrically arranged at two ends of the positioning main body 21, a plurality of slot beams 23 are arranged on the top surface of the positioning main body 21 in parallel, a plurality of slots 24 with two through ends are arranged on each slot beam 23, the slots 24 are arranged at equal intervals along the length direction of the slot beams 23, and each slot 24 is respectively inserted with each radiating fin 100. Each group of support brackets 22 consists of at least two support brackets 22 which respectively support two ends of the oil collecting pipe 200; the two oil collecting pipes 200 are respectively and longitudinally fixed on the two groups of supporting brackets 22, the plurality of radiating fins 100 are transversely and parallelly inserted into the slots 24, and two ends of each radiating fin 100 are respectively abutted against the outer walls of the two oil collecting pipes 200.

In the invention, the turnover mechanism 3 comprises two racks 31 symmetrically arranged at two sides of the positioning main body 21, a v-21274is rotatably arranged between the two racks 31, a shaped turnover frame 32 is arranged on one of the racks 31, a speed reducing motor 33 is arranged on the first moving module 4, the first moving module is arranged on the turnover frame 32 along the length direction of the turnover frame 32, one end of the turnover frame 32 is in transmission connection with the speed reducing motor 33, the other end of the turnover frame 32 is rotatably connected with the adjacent rack 31 through a rotating shaft, and the speed reducing motor 33 drives the turnover frame 32 to turn around the axis of the rotating shaft when in use. The length of the roll-over stand 32 is greater than the length of the oil collecting pipe 200, so that the oil collecting pipe 200 is framed on the inner side of the roll-over stand 32, and the roll-over stand 32 cannot contact with the oil collecting pipe 200 when being turned over.

In the invention, the rotating shaft of the turning frame 32 is coincided with the central shaft of the oil collecting pipe 200, the turning frame 32 drives the welding device 1 to rotate when turning, the rotating track of the welding device 1 is coaxial with the oil collecting pipe 200, the welding tip of the welding device 1 is close to the oil collecting pipe 200, and the welding wire is tightly attached to the outer wall of the oil collecting pipe 200, so that the matching precision of the welding seam 100 is high.

In the invention, the first moving module 4 and the second moving module 5 are both servo sliding tables and both comprise a driving motor, a screw rod and a sliding table.

When the welding device is used, two oil collecting pipes 200 are respectively and longitudinally fixed on two groups of supporting brackets 22, a plurality of radiating fins 100 are transversely inserted in each slot 24 in parallel, and two ends of each radiating fin 100 are respectively abutted against the outer walls of the two oil collecting pipes 200, when in welding, the first moving module 4 drives the welding device 1 to move along the length direction of the oil collecting pipes 200 until being aligned with the first radiating fin 100, the speed reducing motor 33 drives the turnover frame 32 to rotate around the central axis of the oil collecting pipes 200, drives the welding device 1 to rotate until two welding guns 12 are respectively and symmetrically positioned at two sides of the radiating fins 100 and welding nozzles of the two welding guns 12 are aligned with a welding part, the second moving module 5 drives the welding device 1 to translate to enable the first welding gun 12 to translate towards the direction close to the highest point of the first side of the radiating fin 100 until the end part of a welding wire extending out of a wire feeding pipeline 15 in the first group of wire feeding welding mechanisms butts against the side surface of the first side of the radiating fin 100 and is abutted against the outer side of the first strip joint formed by the outer side of the oil collecting pipes 200, then starting a first welding gun 12, melting a welding wire by the welding gun 12 to perform arc starting welding on a first attached seam, in the process of arc starting welding, driving the welding device 1 to rotate by the turnover mechanism 3, driving the first welding gun 12 to move in the direction away from the radiating fin 100 by the second moving module 5, so as to weld a welding seam 300 of an arc starting section which is inclined downwards and is in an outward-expanding arc shape, then restoring the two welding guns 12 to positions which are symmetrically positioned at two sides of the radiating fin 100, keeping the turnover mechanism 3 rotating but stopping the second moving module 5, continuously welding the welding seam 300 of the arc middle section along the periphery of the oil collecting pipe 200 by the first wire feeding welding mechanism, when an arc closing stage is reached, keeping the turnover mechanism 3 rotating and driving the first welding gun 12 to move in the direction close to the radiating fin 100 by the second moving module 5, so as to weld the welding seam 300 of the arc starting section which is inclined downwards and is retracted inwards, thus, the welding device 1 completes the welding of the first side surface of the heat sink 100, then the second moving module 5 drives the second welding gun 12 to move horizontally toward the second side surface close to the heat sink 100 until the end of the welding wire extending out of the wire feeding pipeline 15 in the second group of wire feeding welding mechanisms butts against the lowest point of the second seam formed by the second side surface of the heat sink 100 and the outer side of the oil collecting pipe 200, the second welding gun 12 is started, the welding gun 12 melts the welding wire to perform arc starting welding on the second seam, during the arc starting welding process, the turnover mechanism 3 drives the welding device 1 to rotate and the second moving module 5 drives the second welding gun 12 to move in the direction far away from the heat sink 100, so as to weld the welding seam 300 with an inclined outward-expanding arc starting section, then the two welding guns 12 are restored to the positions symmetrically positioned at the two sides of the heat sink 100, the turnover mechanism 3 keeps rotating but the second moving module 5 stops operating, the second group of wire feeding welding mechanisms continues to weld the welding seam 300 at the arc-shaped middle section along the periphery of the oil collecting pipe 200, and at the arc-closing stage, the turnover mechanism 3 keeps rotating and the second moving module 5 drives the second welding gun 12 to move towards the direction close to the radiating fin 100, so that the welding seam 300 of the arc-shaped arc-starting section which is inclined upwards and shrinks inwards is welded, therefore, the welding device 1 completes the welding of the side surface of the second side of the radiating fin 100, the welding of the side surfaces of the two sides of the radiating fin 100 is completed, the first radiating fin 100 is welded on the oil collecting pipe 200, and the welding device 1 stops operating; then, the first moving module 4 drives the welding device 1 to move to the position of the next heat dissipation fin 100 again to weld the next heat dissipation fin 100, and the welding is repeated, so that all the heat dissipation fins 100 are welded on the oil collection pipe 200. Therefore, the welding quality of the invention is good, and the welding efficiency can be effectively improved.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. The utility model provides an automatic circumference welding machine for welding collection oil pipe and fin which characterized in that: comprises a welding device (1), a tool positioning device (2) for positioning the positions of two oil collecting pipes (200) and a plurality of radiating fins (100), two rail welding devices are symmetrically arranged at two ends of the tool positioning device (2), each rail welding device comprises a turnover mechanism (3) for controlling the welding device (1) to perform circumferential welding, a first moving module (4) for controlling the welding device (1) to horizontally move, and a second moving module (5) for controlling the welding device (1) to perform shrinkage welding, wherein the turnover mechanism (3) is arranged on the tool positioning device (2), the first moving module (4) is arranged on the turnover mechanism (3) along the length direction of the turnover mechanism (3), the second moving module (5) is installed on the first moving module (4) in a transmission mode, and the second moving module (5) is connected with the welding device (1) in a transmission mode.

2. The automatic circumferential welding machine for welding the oil collecting pipe and the heat radiating fin according to claim 1, wherein: welding set (1) is including welding frame (11), welding frame (11) is connected and this welding frame (11) upper end symmetry is installed with second removal module (5) transmission two sets of welding mechanism that send a, two send a welding mechanism all including welder (12), a wire feeder (13), a wire reel (14) that are used for carrying the welding wire, wherein, welder (12), send a wire feeder (13), wire reel (14) install in proper order on welding frame (11), the winding has welding wire and this wire reel (14) and welding frame (11) normal running fit on wire reel (14), wire reel (14) one end is kept away from in wire feeder (13) and is connected with a pipeline (15) that send that is used for guiding welding wire direction of delivery, send a pipeline (15) one end and send a wire feeder (13) intercommunication and this wire reel (15) other end to extend to the nozzle department of welder (12).

3. The automatic circumferential welding machine for welding the oil collecting pipe and the heat radiating fin according to claim 1, wherein: frock positioner (2) are including location main part (21), the both ends symmetry of location main part (21) is installed two sets of support bracket (22) that are used for holding oil collecting pipe (200) and the top surface parallel arrangement of this location main part (21) has a plurality of slot roof beams (23), each all set up slot (24) that a plurality of both ends link up on slot roof beam (23), each slot (24) are arranged and each slot (24) are pegged graft with each fin (100) respectively along the length direction equidistance of slot roof beam (23).

4. The automatic circumferential welding machine for welding the oil collecting pipe and the heat radiating fin according to claim 3, wherein: tilting mechanism (3) are including the symmetry install two frame (31) in location main part (21) both sides, two rotate between frame (31) and install on roll-over stand (32) and one of them frame (31) of shape and install gear motor (33), wherein, first removal module (4) are installed on roll-over stand (32) along the length direction of roll-over stand (32), the one end and gear motor (33) transmission of roll-over stand (32) are connected and this roll-over stand (32) other end with rotate with adjacent frame (31) through the pivot and be connected.

5. The automatic circumferential welding machine for welding the oil collecting pipe and the heat radiating fin according to claim 4, wherein: the rotating shaft of the roll-over stand (32) is superposed with the central shaft of the oil collecting pipe (200).

6. An automatic circumferential welding machine for welding oil collecting pipes and cooling fins according to any one of claims 1 to 5, characterized in that: the first movable module (4) and the second movable module (5) are both servo sliding tables.