Full-automatic welding device and method for automobile parts

Abstract

The invention provides a full-automatic welding device and method for automobile parts. The full-automatic welding device for the automobile parts comprises a base, a high-frequency brazing assembly and a welding wire position adjusting assembly. A first motor is controlled to drive a first screw rod, so that two sections of threaded rod parts on the first screw rod are in engaged transmission with first connecting seats at the bottoms of two insulating supports respectively, and the two insulating supports are controlled to be close to or far away from each other under the guidance of a first sliding shaft, so that the two induction pieces are adjusted to be opened or closed; the cold plate aluminum piece tool can be conveniently fixed to the workbench through the open-type induction piece; and under the air exhaust work of the air exhaust fan, the two sections of exhaust pipes form an annular pipe hooping the outer part of the cold plate aluminum part to extract smoke generated in the welding process, and the smoke is uniformly exhausted and treated, so that the air pollution is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts production, and in particular to a fully automatic welding device and method for automobile parts. Background Art

[0002] The automobile radiator is an indispensable and important component in the cooling system of the automobile water-cooled engine. When welding and assembling the aluminum parts of the cold plate of the automobile radiator, the workpiece is usually fixed by a clamp, and then the weld of the workpiece is welded. Due to the material, the aluminum parts of the cold plate of the automobile radiator are usually welded by a high-frequency brazing machine. The induction coil of the high-frequency brazing machine is set on the periphery of the welding part, and the joint is welded with welding materials. However, the induction coil of the traditional high-frequency brazing machine is a fixed coil type, which affects the fixation of the tooling before the workpiece welding and is not convenient for the fixation of the workpiece; harmful fumes will be generated during the welding process of the workpiece. These fumes are mainly composed of metal oxides and other harmful substances. The components of the fume include iron oxide, manganese oxide, silicon dioxide, etc. These substances quickly vaporize and condense at high temperatures to form tiny particles, which are easily inhaled into the lungs, affecting the environment of the processing workshop and the health of the staff. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a fully automatic welding device and method for automobile parts to more accurately solve the above problems.

[0004] The present invention is achieved through the following technical solutions: The present invention proposes a fully automatic welding device for automobile parts, comprising a base, a high-frequency brazing assembly and a welding wire positioning assembly, wherein the base is provided with a workbench for carrying cold plate aluminum parts, and a high-frequency brazing assembly is provided on one side of the base, and the high-frequency brazing assembly comprises a pair of first shaft rod brackets fixed on the base, a first sliding shaft and a first screw rod are provided between the pair of first shaft rod brackets, a pair of insulating supports are connected to the first sliding shaft and the first screw rod, and an induction piece is fixed on each insulating support, the outer ends of the pair of induction pieces extend horizontally toward one side of the workbench, and the outer ends of the pair of induction pieces are in contact and embraced to form an induction coil, the insulating support is connected to the output end of the high-frequency brazing machine box through an electric wire, and each of the insulating supports An exhaust pipe is fixed on the top through a support rod, and the two sections of the exhaust pipe are embraced and connected, one section of the exhaust pipe is connected to the exhaust interface of the exhaust fan through an air guide pipe, and an exhaust slot is opened on the inner side of the exhaust pipe. The welding wire adjustment assembly includes two pairs of second shaft rod brackets arranged on the base, a second sliding shaft is connected between the tops of one pair of second shaft rod brackets, and a second screw rod is connected between the tops of the other pair of second shaft rod brackets. Two third shaft rod brackets are respectively connected to the second sliding shaft and the second screw rod, and the third shaft rod brackets connected to the second sliding shaft and the second screw rod are paired, and a third sliding shaft and a third screw rod are connected between each pair of the third shaft rod brackets, and a welding wire supply gun is connected to the third sliding shaft and the second shaft rod bracket.

[0005] Furthermore, an outer end portion of one of the sensing elements is provided with a convexly curved elastic contact piece, and the elastic contact piece is in close contact with an end portion of the other sensing element.

[0006] Furthermore, the first screw rod is provided with two sections of threaded rod portions with opposite spiral directions, and a first connecting seat is provided at the bottom of the insulating support. The first connecting seats provided at the bottom of the two insulating supports are respectively engaged with the two sections of threaded rod portions provided on the first screw rod, and the first connecting seat is slidably connected with the first sliding shaft. A first motor is provided on the outer side of one of the first shaft rod brackets, and the output end of the first motor is transmission-connected to one end of the first screw rod.

[0007] Furthermore, both ends of the exhaust pipe are provided with nylon sleeves, and the nylon sleeves provided at the exhaust pipe ends are in close contact with each other.

[0008] Furthermore, a second connecting seat is provided at the bottom of the third shaft rod bracket, the second connecting seat is slidably connected with the second sliding shaft, the second connecting seat is threadedly connected with the second screw rod, and a second motor is provided on the outer side of the top of the second shaft rod bracket corresponding to one side of the second screw rod, and the output end of the second motor is transmission connected with one end of the second screw rod.

[0009] Furthermore, the second screw rod is provided with two sections of threaded rod portions with opposite spiral directions, and the two third shaft rod brackets provided on the second screw rod are respectively connected to the two sections of threaded rod portions provided on the second screw rod.

[0010] Furthermore, a third connecting seat is provided on the outer wall of the welding wire supply gun, and the third connecting seat is slidably connected with the third sliding shaft, the third connecting seat is threadedly connected with the third screw rod, and a third motor is provided on the third shaft rod bracket, and the output end of the third motor is transmission-connected with one end of the third screw rod.

[0011] Furthermore, a welding wire is arranged through the welding wire feeding gun, and the welding wire feeding gun is arranged to be tilted downward at 60 degrees. A welding wire wheel is arranged in the middle inner cavity of the welding wire feeding gun, and the welding wire wheel and the welding wire are in rolling contact. A welding wire feeding motor is arranged on the outer wall of the welding wire feeding gun, and the output end of the welding wire feeding motor is connected to the welding wire wheel.

[0012] A method of the fully automatic welding device for automobile parts comprises the following steps: Step 1: First, fix the cold plate aluminum part tooling on the workbench, and then drive the first screw rod by controlling the first motor, so that the two threaded rod sections on the first screw rod are respectively meshed and transmitted with the first connecting seats at the bottom of the two insulating supports, and under the guidance of the first sliding shaft, the two insulating supports are controlled to be close to each other, so as to adjust the two induction parts to be engaged with the outer periphery of the welding point of the cold plate aluminum part; Step 2: The welding wire wheel is driven by the welding wire supply motor provided on the outside of the welding wire supply gun, and the welding wire wheel drives the welding wire to discharge, and the second motor is controlled to drive the second screw rod, so that the two threaded rod sections on the second screw rod are respectively engaged with the second connecting seats provided at the bottom of the two third shaft rod brackets, and under the guidance of the second sliding shaft, the two third shaft rod brackets are controlled to be close to or away from each other, thereby adjusting the position of the welding wire supply gun, so that the bottom end of the welding wire is against the welding point of the cold plate aluminum part; Step 3: Turn on the high-frequency brazing chassis, and the induction coil formed by a pair of induction parts heats the welding points of the cold plate aluminum parts; While the induction element heats the cold plate aluminum part, the third motor is controlled to drive the third screw rod, so that the third screw rod is meshed and transmitted with the third connecting seat provided on the welding wire supply gun, and the position of the welding wire supply gun is controlled to move under the guidance of the third sliding shaft, so that the welding wire acts on the welding seam of the cold plate aluminum part to complete the welding; During the welding process, the exhaust fan operates to exhaust air so that the two exhaust pipes form a ring-shaped pipe that is wrapped around the outside of the cold plate aluminum part to extract the fume generated during the welding process and discharge it uniformly.

[0013] Beneficial effects of the present invention: 1. The present invention controls the first motor to drive the first screw rod, so that the two threaded rod sections on the first screw rod are respectively meshed and driven with the first connecting seats at the bottom of the two insulating supports, and under the guidance of the first sliding shaft, the two insulating supports are controlled to be close to or away from each other, so as to adjust the two induction parts to open or close, and the open induction parts are convenient for fixing the cold plate aluminum parts tooling on the workbench; 2. The present invention drives the welding wire wheel through the welding wire feeding motor, and the welding wire wheel drives the welding wire to discharge, so that the bottom end of the welding wire contacts the welding point of the cold plate aluminum part, and then controls the second motor to drive the second screw rod, so that the two sections of threaded rod on the second screw rod are respectively meshed and transmitted with the second connecting seats provided at the bottom of the two third shaft rod brackets, and under the guidance of the second sliding shaft, the two third shaft rod brackets are controlled to approach or move away from each other, and the third motor is controlled to drive the third screw rod, so that the third screw rod is meshed and transmitted with the third connecting seat provided on the welding wire feeding gun, and under the guidance of the third sliding shaft, the position movement of the welding wire feeding gun is controlled, so that the walking welding of the welding seam on the cold plate aluminum part can be automatically completed; 3. Under the exhaust operation of the exhaust fan, the present invention enables the two exhaust pipes to form an annular pipe that is embraced outside the cold plate aluminum part to extract the smoke generated during the welding process and discharge it uniformly, effectively reducing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the high-frequency brazing assembly of the present invention; Figure 4 A top view of the structure of the present invention; Figure 5 It is a front cross-sectional view of the structure of the present invention; Figure 6 is a side sectional view of the structure of the present invention; Figure 7 for Figure 6 Cross-sectional view at AA in the middle.

[0015] In the figure: 1, base; 101, workbench; 2, high-frequency brazing assembly; 201, first shaft support; 202, first sliding shaft; 2021, first screw rod; 203, insulating support; 2031, first connecting seat; 204, induction element; 2041, elastic contact piece; 205, first motor; 206, high-frequency brazing chassis; 3, support rod; 301, exhaust pipe; 3011, nylon head cover; 302, air guide pipe; 303, exhaust fan; 4 , welding wire positioning assembly; 401, second shaft support; 402, second sliding shaft; 4021, second screw rod; 4022, second motor; 403, third shaft support; 4031, second connecting seat; 404, third sliding shaft; 4041, third screw rod; 4042, third motor; 405, welding wire supply gun; 4051, welding wire supply motor; 4052, welding wire wheel; 4053, third connecting seat; 406, welding wire; 5, cold plate aluminum parts. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0017] A fully automatic welding device and method for automobile parts, comprising a base 1, a high-frequency brazing assembly 2 and a welding wire positioning assembly 4, wherein a workbench 101 for carrying a cold plate aluminum part 5 is provided on the base 1. Figure 1 and Figure 3As shown, a high-frequency brazing assembly 2 is provided on one side of the base 1, and the high-frequency brazing assembly 2 includes a pair of first shaft supports 201 fixed on the base 1, a first sliding shaft 202 and a first screw rod 2021 are provided between the pair of first shaft supports 201, a pair of insulating supports 203 are connected to the first sliding shaft 202 and the first screw rod 2021, and an induction member 204 is fixed on each insulating support 203, the outer ends of the pair of induction members 204 extend horizontally toward one side of the workbench 101, and the outer ends of the pair of induction members 204 contact and embrace to form an induction coil, and the insulating supports 203 pass through The wire is connected to the output end of the high-frequency brazing machine box 206, and the first screw rod 2021 is provided with two sections of threaded rods with opposite spiral directions. The bottom of the insulating support 203 is provided with a first connecting seat 2031, and the first connecting seats 2031 provided at the bottom of the two insulating supports 203 are respectively engaged with the two sections of threaded rods provided on the first screw rod 2021, and the first connecting seat 2031 is slidably connected with the first sliding shaft 202, and a first motor 205 is provided on the outer side of one of the first shaft brackets 201, and the output end of the first motor 205 is transmission-connected to one end of the first screw rod 2021. By controlling the first motor 205 to drive the first screw rod 2021, the two threaded rod sections on the first screw rod 2021 are respectively meshed and transmitted with the first connecting seats 2031 at the bottom of the two insulating supports 203, thereby controlling the two insulating supports 203 to move closer or farther away from each other, thereby adjusting the two sensing parts 204 to open or embrace. The open sensing parts 204 facilitate the fixing of the cold plate aluminum part 5 on the workbench 101.

[0018] Combination Figure 3 and Figure 7 As shown, the outer end of one of the sensing elements 204 is provided with a "convex" curved elastic contact piece 2041, and the elastic contact piece 2041 is in close contact with the end of the other sensing element 204. After the two sensing elements 204 are closed, the circuit can be connected smoothly and the contact is not easily disconnected.

[0019] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention controls the first motor 205 to drive the first screw rod 2021, so that the two threaded rod sections on the first screw rod 2021 are respectively engaged and transmitted with the first connecting seats 2031 at the bottom of the two insulating supports 203, and under the guidance of the first sliding shaft 202, the two insulating supports 203 are controlled to be close to or away from each other, so as to adjust the two sensing parts 204 to be opened or embraced, and the open sensing parts 204 facilitate the cold plate aluminum parts 5 to be fixed on the workbench 101. Example 2

[0020] The welding wire positioning assembly 4 includes two pairs of second shaft rod supports 401 arranged on the base 1, a second sliding shaft 402 is connected between the tops of one pair of second shaft rod supports 401, a second screw rod 4021 is connected between the tops of the other pair of second shaft rod supports 401, two third shaft rod supports 403 are connected to each of the second sliding shaft 402 and the second screw rod 4021, the third shaft rod supports 403 connected to the second sliding shaft 402 and the second screw rod 4021 are paired, and a third sliding shaft 404 and a third screw rod 4041 are connected between each pair of third shaft rod supports 403, and a welding wire supply gun 405 is connected to the third sliding shaft 404 and the second shaft rod support 401.

[0021] A second connection seat 4031 is provided at the bottom of the third shaft support 403, the second connection seat 4031 is slidably connected with the second sliding shaft 402, the second connection seat 4031 is threadedly connected with the second screw rod 4021, and a second motor 4022 is provided on the outer side of the top of the second shaft support 401 corresponding to one side of the second screw rod 4021, and the output end of the second motor 4022 is transmission-connected with one end of the second screw rod 4021. The second motor 4022 is controlled to drive the second screw rod 4021, so that the two threaded rod sections on the second screw rod 4021 are respectively meshed and transmitted with the second connection seats 4031 provided at the bottom of the two third shaft supports 403, and under the guidance of the second sliding shaft 402, the two third shaft supports 403 are controlled to approach or move away from each other.

[0022] The outer wall of the welding wire supply gun 405 is provided with a third connection seat 4053, and the third connection seat 4053 is slidably connected with the third sliding shaft 404, the third connection seat 4053 is screwed with the third screw rod 4041, and the third shaft support 403 is provided with a third motor 4042, and the output end of the third motor 4042 is transmission-connected with one end of the third screw rod 4041. The third motor 4042 is controlled to drive the third screw rod 4041, so that the third screw rod 4041 is meshed and transmitted with the third connection seat 4053 provided on the welding wire supply gun 405, and under the guidance of the third sliding shaft 404, the position movement of the welding wire supply gun 405 is controlled.

[0023] A welding wire 406 is passed through the welding wire supply gun 405, and the welding wire supply gun 405 is tilted downward at 60° so that the bottom end of the welding wire 406 contacts the welding point of the cold plate aluminum part 5. A welding wire wheel 4052 is provided in the middle inner cavity of the welding wire supply gun 405, and the welding wire wheel 4052 rolls against the welding wire 406. A welding wire supply motor 4051 is provided on the outer wall of the welding wire supply gun 405, and the output end of the welding wire supply motor 4051 is connected to the welding wire wheel 4052. The welding wire wheel 4052 is driven by the welding wire supply motor 4051, and the welding wire 406 is driven by the welding wire wheel 4052 to discharge the welding wire.

[0024] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention drives the welding wire wheel 4052 through the welding wire feeding motor 4051, and the welding wire wheel 4052 drives the welding wire 406 to discharge the material, so that the bottom end of the welding wire 406 is against the welding point of the cold plate aluminum part 5, and then the second motor 4022 is controlled to drive the second screw rod 4021, so that the two threaded rod sections on the second screw rod 4021 are respectively connected to the two third shaft rod brackets 403 at the bottom. The second connecting seat 4031 is engaged for transmission, and under the guidance of the second sliding shaft 402, the two third shaft rod brackets 403 are controlled to approach or move away from each other, and the third motor 4042 is controlled to drive the third screw rod 4041, so that the third screw rod 4041 is engaged for transmission with the third connecting seat 4053 arranged on the welding wire feeding gun 405, and under the guidance of the third sliding shaft 404, the position movement of the welding wire feeding gun 405 is controlled, thereby automatically completing the walking welding of the welding seam on the cold plate aluminum part 5. Example 3

[0025] An exhaust pipe 301 is fixed to each insulating support 203 through a support rod 3. The two sections of the exhaust pipe 301 are embraced and connected. One section of the exhaust pipe 301 is connected to the exhaust interface of the exhaust fan 303 through an air guide pipe 302. An exhaust slot is provided on the inner side of the exhaust pipe 301. Under the exhaust operation of the exhaust fan 303, the two sections of the exhaust pipe 301 form an annular pipe embraced on the outside of the cold plate aluminum part 5 to extract the fume generated during the welding process, and discharge it uniformly, effectively reducing gas pollution. Both ends of the exhaust pipe 301 are provided with nylon head sleeves 3011, and the nylon head sleeves 3011 provided on the ends of the exhaust pipe 301 are tightly in contact with each other to ensure the sealing of the connection.

[0026] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: under the exhaust operation of the exhaust fan 303, the two exhaust pipes 301 form an annular tube that is embraced by the outside of the cold plate aluminum part 5 to extract the smoke generated during the welding process and discharge it uniformly, effectively reducing gas pollution.

[0027] A method for a fully automatic welding device for automobile parts comprises the following steps: Step 1: First, fix the cold plate aluminum part 5 on the workbench 101, and then control the first motor 205 to drive the first screw rod 2021, so that the two threaded rods on the first screw rod 2021 are respectively meshed with the first connecting seats 2031 at the bottom of the two insulating supports 203, and under the guidance of the first sliding shaft 202, the two insulating supports 203 are controlled to be close to each other, so as to adjust the two induction parts 204 to be engaged with the outer periphery of the welding point of the cold plate aluminum part 5; Step 2: The welding wire wheel 4052 is driven by the welding wire supply motor 4051 provided on the outside of the welding wire supply gun 405, and the welding wire wheel 4052 drives the welding wire 406 to discharge the material, and the second motor 4022 is controlled to drive the second screw rod 4021, so that the two sections of the threaded rod on the second screw rod 4021 are respectively engaged with the second connecting seats 4031 provided at the bottom of the two third shaft rod brackets 403 for transmission, and under the guidance of the second sliding shaft 402, the two third shaft rod brackets 403 are controlled to be close to or away from each other, and then the position of the welding wire supply gun 405 is adjusted, so that the bottom end of the welding wire 406 is against the welding point of the cold plate aluminum part 5; Step 3: The high-frequency brazing machine box 206 is turned on to heat the welding points of the cold plate aluminum part 5 by the induction coil formed by the pair of induction parts 204; While the induction element 204 heats the cold plate aluminum part 5, the third motor 4042 is controlled to drive the third screw rod 4041, so that the third screw rod 4041 is meshed and transmitted with the third connecting seat 4053 provided on the welding wire supply gun 405, and under the guidance of the third sliding shaft 404, the position of the welding wire supply gun 405 is controlled to move, so that the welding wire 406 acts on the welding seam of the cold plate aluminum part 5 to complete the welding; During the welding process, the exhaust fan 303 operates to exhaust air, so that the two exhaust pipes 301 form a ring-shaped pipe that is wrapped around the outside of the cold plate aluminum part 5 to extract the fume generated during the welding process and discharge it uniformly.

[0028] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A fully automatic welding device for automobile parts, comprising a base (1), a high-frequency brazing assembly (2) and a welding wire positioning assembly (4), characterized in that: The base (1) is provided with a workbench (101) for supporting the cold plate aluminum part (5); a high-frequency brazing assembly (2) is provided on one side of the base (1); the high-frequency brazing assembly (2) comprises a pair of first shaft rod supports (201) fixed to the base (1); a first sliding shaft (202) and a first screw rod (2021) are provided between the pair of first shaft rod supports (201); a pair of insulating supports (203) are connected to the first sliding shaft (202) and the first screw rod (2021); ), and each insulating support (203) is fixed with an induction member (204), the outer ends of a pair of induction members (204) extend horizontally toward one side of the workbench (101), and the outer ends of the pair of induction members (204) are in contact and embraced to form an induction coil, the insulating support (203) is connected to the output end of the high-frequency brazing machine box (206) through an electric wire, and an exhaust pipe (301) is fixed to each of the insulating supports (203) through a support rod (3), and the two sections of the exhaust pipe (301) are embraced and mutually The exhaust pipe (301) is connected to the exhaust interface of the exhaust fan (303) through the air guide pipe (302), and an exhaust notch is provided on the inner side of the exhaust pipe (301). The welding wire positioning assembly (4) includes two pairs of second shaft rod brackets (401) arranged on the base (1), a second sliding shaft (402) is connected between the tops of one pair of second shaft rod brackets (401), and a second screw rod (402) is connected between the tops of the other pair of second shaft rod brackets (401). 1), the second sliding shaft (402) and the second screw rod (4021) are each connected to two third shaft rod brackets (403), the third shaft rod brackets (403) connected to the second sliding shaft (402) and the second screw rod (4021) are paired, and a third sliding shaft (404) and a third screw rod (4041) are connected between each pair of third shaft rod brackets (403), and the third sliding shaft (404) and the second shaft rod bracket (401) are connected to a welding wire supply gun (405).

2. The fully automatic welding device for automobile parts according to claim 1 is characterized in that: An outer end portion of one of the sensing elements (204) is provided with a "convex" curved elastic contact piece (2041), and the elastic contact piece (2041) is in close contact with an end portion of the other sensing element (204).

3. The fully automatic welding device for automobile parts according to claim 1 is characterized in that: The first screw rod (2021) is provided with two sections of threaded rod portions with opposite spiral directions, and a first connecting seat (2031) is provided at the bottom of the insulating support (203). The first connecting seats (2031) provided at the bottom of the two insulating supports (203) are respectively meshed with the two sections of threaded rod portions provided on the first screw rod (2021), and the first connecting seat (2031) is slidably connected with the first sliding shaft (202). A first motor (205) is provided on the outer side of one of the first shaft support brackets (201), and the output end of the first motor (205) is drivingly connected to one end of the first screw rod (2021).

4. The fully automatic welding device for automobile parts according to claim 1 is characterized in that: Both ends of the exhaust pipe (301) are provided with nylon head sleeves (3011), and the nylon head sleeves (3011) provided at the ends of the exhaust pipe (301) are in tight contact with each other.

5. The fully automatic welding device for automobile parts according to claim 1, characterized in that: A second connecting seat (4031) is provided at the bottom of the third shaft support (403), the second connecting seat (4031) is slidably connected with the second sliding shaft (402), the second connecting seat (4031) is threadedly connected with the second screw rod (4021), and a second motor (4022) is provided on the outer side of the top of the second shaft support (401) corresponding to one side of the second screw rod (4021), and the output end of the second motor (4022) is drivingly connected with one end of the second screw rod (4021).

6. The fully automatic welding device for automobile parts according to claim 5, characterized in that: The second screw rod (4021) is provided with two sections of threaded rod portions with opposite spiral directions, and the two third shaft rod brackets (403) provided on the second screw rod (4021) are respectively connected to the two sections of threaded rod portions provided on the second screw rod (4021).

7. The fully automatic welding device for automobile parts according to claim 1, characterized in that: The outer wall of the welding wire supply gun (405) is provided with a third connecting seat (4053), and the third connecting seat (4053) is slidably connected with the third sliding shaft (404), the third connecting seat (4053) is screwed with the third screw rod (4041), and the third shaft rod bracket (403) is provided with a third motor (4042), and the output end of the third motor (4042) is transmission-connected with one end of the third screw rod (4041).

8. The fully automatic welding device for automobile parts according to claim 1, characterized in that: A welding wire (406) is provided through the welding wire supply gun (405), and the welding wire supply gun (405) is arranged to be tilted downward at 60 degrees. A welding wire wheel (4052) is provided in the middle inner cavity of the welding wire supply gun (405), and the welding wire wheel (4052) and the welding wire (406) are in rolling contact. A welding wire supply motor (4051) is provided on the outer wall of the welding wire supply gun (405), and the output end of the welding wire supply motor (4051) is connected to the welding wire wheel (4052).

9. A method applied to the fully automatic welding device for automobile parts according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: first fix the cold plate aluminum part (5) tooling on the workbench (101), then control the first motor (205) to drive the first screw rod (2021), so that the two threaded rod sections on the first screw rod (2021) are respectively meshed with the first connecting seats (2031) at the bottom of the two insulating supports (203) for transmission, and under the guidance of the first sliding shaft (202), the two insulating supports (203) are controlled to be close to each other, so as to adjust the two induction parts (204) to be engaged with the outer periphery of the welding point of the cold plate aluminum part (5); Step 2: The welding wire wheel (4052) is driven by the welding wire supply motor (4051) provided on the outside of the welding wire supply gun (405), and the welding wire wheel (4052) drives the welding wire (406) to discharge the material, and the second motor (4022) is controlled to drive the second screw rod (4021), so that the two threaded rod sections on the second screw rod (4021) are respectively meshed with the second connecting seats (4031) provided at the bottom of the two third shaft rod brackets (403) for transmission, and under the guidance of the second sliding shaft (402), the two third shaft rod brackets (403) are controlled to approach or move away from each other, thereby adjusting the position of the welding wire supply gun (405), so that the bottom end of the welding wire (406) is against the welding point of the cold plate aluminum part (5); Step 3: The high-frequency brazing machine box (206) is turned on to heat the welding points of the cold plate aluminum part (5) through an induction coil formed by a pair of induction parts (204); While the induction element (204) heats the cold plate aluminum part (5), the third motor (4042) is controlled to drive the third screw rod (4041), so that the third screw rod (4041) is meshed with a third connecting seat (4053) provided on the welding wire supply gun (405) for transmission, and under the guidance of the third sliding shaft (404), the position of the welding wire supply gun (405) is controlled to move, so that the welding wire (406) acts on the welding seam of the cold plate aluminum part (5), thereby completing welding; During the welding process, the exhaust fan (303) operates to exhaust air, so that the two exhaust pipes (301) form an annular pipe that is engaged with the outside of the cold plate aluminum part (5) to extract the fume generated during the welding process and discharge it uniformly.

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