Welding device for automobile parts

Abstract

The invention relates to the technical field of welding devices, in particular to an automobile part welding device which comprises a machine table. The fixed frame is fixedly mounted on the machine table; the fixing mechanism is used for fixing the pipe fitting; and the welding mechanism is used for welding the pipe fittings. According to the pipe fitting welding device, through the arrangement of the fixing mechanism, pipe fittings on the two stations are moved to the welding position in turn to be welded, then welding work can be conducted while welded finished products are manually taken down and the pipe fittings to be welded are placed, the welding efficiency is improved, and the labor intensity of workers is reduced. The pipe fitting to be welded is moved to the welding position and fixed at the same time, displacement of the pipe fitting during welding is avoided, the welding quality is improved, meanwhile, fixation of the pipe fitting is relieved while the welded pipe fitting is moved to the feeding position, and workers can conveniently take out and replace the pipe fitting to be welded.

Description

Technical Field

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

[0002] Auto parts are the various units that make up the whole of a car and a product that serves the car. There are many types of auto parts, including many pipes. When manufacturing pipes, laser welding equipment is often needed to weld two pipes together; laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool.

[0003] A Chinese patent with application number CN202311459240.3 discloses a pipe laser welding machine, comprising: a machine body, a work surface is provided on the surface of the machine body; a laser welding mechanism, the laser welding mechanism is arranged on the work surface, and the laser welding mechanism includes a laser welding head that can be raised and lowered; and also includes: a pipe clamping mechanism, the pipe clamping mechanism is arranged on the machine body, and the pipe clamping mechanism includes two pipe clamping members symmetrically arranged on both sides of the laser welding head; wherein the two pipe clamping members can be synchronously rotated through a synchronous driving member to drive the two sections of the pipe to rotate simultaneously. Compared with the prior art, the present invention can prevent the phenomenon that the weld quality is affected by the asynchronous rotation of the two sections of the pipe, thereby improving the welding quality of the pipe.

[0004] However, the existing welding device is found to have only one fixed station when in use. When the worker fixes the pipe to be welded or removes the finished welded product, the entire device is in a standby waiting state and cannot perform welding work continuously, which seriously affects the welding efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a welding device for automobile parts which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical scheme is adopted: A welding device for automobile parts, comprising: a machine platform; a fixing frame fixedly mounted on the machine platform; a fixing mechanism for fixing a pipe fitting; a welding mechanism for welding the pipe fitting; The fixing mechanism includes: a support column rotatably mounted on the machine platform; a mounting seat fixedly mounted on the top of the support column; a linkage gear ring fixedly sleeved on the support column; a linkage gear meshingly connected with the linkage gear ring; a power source for driving the linkage gear to rotate; a rotating drum rotatably mounted on the mounting seat; a fixing pipe fixedly mounted in the rotating drum; a positioning plate fixedly sleeved on the fixing pipe; and a supporting assembly for supporting the inner wall of the pipe; The support assembly includes: an annular sac mounted on the fixed tube, the annular sac is connected to the fixed tube; a linkage tube fixedly mounted on the bottom end of the support column; a liquid guide tube connecting the linkage tube and the fixed tube; a piston 1 slidably mounted in the linkage tube; a linkage rod fixedly connected to the piston 1; a rolling element rotatably mounted on the linkage rod; a fixed cylinder mounted on the linkage rod; a guide groove provided in the fixed cylinder, the rolling element being rotatably mounted in the guide groove.

[0008] Furthermore, the welding mechanism includes: a slide groove 1 opened on the fixed frame, a movable plate 1 slidably installed in the slide groove 1, a laser welding machine fixedly installed on the movable plate 1, a power source 2 for driving the movable plate 1 to move, a limiting rod 1 for limiting the movable plate 1, an extrusion component for auxiliary fixing of the pipe fitting, a cooling component for cooling the pipe fitting, a maintenance component for maintaining the pipe fitting, and a rotating component for driving the pipe fitting to rotate.

[0009] Furthermore, the extrusion assembly includes: a threaded rod rotatably mounted on the fixed frame; a threaded tube threadedly connected to the threaded rod; an extrusion block rotatably mounted on the bottom end of the threaded tube; a limiting tube sleeved on the threaded tube, the limiting tube is fixedly connected to the fixed frame; a limiting groove opened in the limiting tube; a limiting bar slidably mounted in the limiting groove, the limiting bar is fixedly connected to the threaded tube; a connecting gear fixedly sleeved on the threaded rod; a connecting rack meshingly connected to the connecting gear, the connecting rack is fixedly connected to a movable plate.

[0010] Furthermore, the cooling assembly includes: a cooling box fixedly installed in the machine, a pump body fixedly installed on the cooling box, an air duct connected to the air inlet end of the pump body, an air outlet pipe connected to the air outlet end of the pump body, a nozzle connected to the air outlet pipe, a moving unit that drives the nozzle to move, and an air inlet unit connected to the air duct.

[0011] Furthermore, the mobile unit includes: a second slide groove opened on the fixed frame, a second movable plate slidably installed in the second slide groove, a second limit rod for limiting the position of the second movable plate, and a linkage rack fixedly installed on the second movable plate; the linkage rack and the connecting gear are arranged to mesh with each other.

[0012] Furthermore, the air intake unit includes: an annular tube fixedly mounted on the laser welding machine, a connector connected to the annular tube, a processing box fixedly mounted on the fixed frame, an air intake pipe connecting the processing box and the annular tube, and a filter installed in the processing box.

[0013] Furthermore, the maintenance component includes: a mounting shell, an adsorption smear body mounted in the mounting shell, a liquid collecting tube fixedly mounted on the fixing frame, a piston 2 slidably mounted in the liquid collecting tube, a push rod fixedly connected to the piston 2, a liquid storage tank fixedly mounted on the machine, a liquid inlet pipe connecting the liquid storage tank and the liquid collecting tube, a liquid outlet pipe connecting the liquid collecting tube and the mounting shell, and a linkage unit for driving the adsorption smear body to move; the push rod is fixedly connected to a movable plate 1.

[0014] Furthermore, the linkage unit includes: a sliding groove three opened on the fixed frame, a movable plate three slidably installed in the sliding groove three, a limiting rod three for limiting the movable plate three, and a transmission rack fixedly installed on the movable plate three; the transmission rack and the connecting gear are arranged to mesh with each other, and the movable plate three is fixedly connected to the mounting shell.

[0015] Furthermore, the rotating component includes: a transmission gear ring fixedly mounted on the rotating drum; a transmission gear meshingly connected to the transmission gear ring; a power source three for driving the transmission gear to rotate; and fan blades and stirring blades coaxially connected to the transmission gear.

[0016] Furthermore, the welding mechanism also includes: a connecting pipe connecting the annular pipe and the liquid collecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a welding device for automobile parts. Through the setting of a fixing mechanism, pipe fittings on two workstations are moved to a welding position for welding in turn, thereby realizing that welding work can be performed while manually removing the welded finished product and placing the pipe fitting to be welded, thereby improving welding efficiency. The pipe fitting to be welded is fixed while being moved to the welding position, thereby avoiding displacement of the pipe fitting during welding and improving welding quality. At the same time, the pipe fitting after welding is moved to a loading position and the fixing of the pipe fitting is released, thereby facilitating workers to take out and replace the pipe fitting to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1It is a three-dimensional schematic diagram of a welding device for automobile parts of the present invention; Figure 2 A three-dimensional schematic diagram of a welding device for automobile parts of the present invention from another viewing angle; Figure 3 A schematic cross-sectional view of a component fixing frame of a welding device for automobile parts of the present invention; Figure 4 It is a three-dimensional schematic diagram of a component connecting gear of a welding device for automobile parts of the present invention; Figure 5 A schematic cross-sectional view of a component mounting seat of a welding device for automobile parts of the present invention; Figure 6 A schematic cross-sectional view of a component cooling box of a welding device for automobile components of the present invention; Figure 7 A schematic cross-sectional view of a component processing box of a welding device for automobile components of the present invention; Figure 8 A schematic cross-sectional view of a rotating drum of a welding device for automobile parts of the present invention; Fig. 9 It is a cross-sectional schematic diagram of a component linkage pipe of a welding device for automobile parts of the present invention; Fig.10 The present invention is a schematic cross-sectional view of a component limiting tube of a welding device for automobile parts.

[0020] In the figure: 1. Machine; 2. Fixing mechanism; 21. Support column; 22. Mounting seat; 23. Linking gear; 24. Linking gear ring; 25. Power source 1; 26. Rotating cylinder; 27. Fixed pipe; 28. Positioning plate; 29. ​​Support assembly; 291. Annular capsule; 292. Linking pipe; 293. Piston 1; 294. Linking rod; 295. Rolling element; 296. Fixed cylinder; 297. Guide groove; 298. Liquid guide tube; 3, welding mechanism; 31, movable plate 1; 32, laser welding machine; 33, power source 2; 34, limit rod 1; 35, extrusion assembly; 351, threaded rod; 352, threaded tube; 353, limit tube; 354, limit strip; 355, extrusion block; 356, connecting gear; 357, connecting rack; 36, cooling assembly; 361, cooling box; 362, air guide pipe; 363, pump body; 36 4. Exhaust pipe; 365. Nozzle; 366. Moving unit; 3661. Movable plate 2; 3662. Linking rack; 3663. Limit rod 2; 367. Intake unit; 3671. Ring pipe; 3672. Connector; 3673. Processing box; 3674. Intake pipe; 3675. Filter element; 37. Maintenance component; 371. Mounting shell; 372. Adsorption smear body; 373. Liquid collecting pipe; 3 74. Piston 2; 375. Push rod; 376. Liquid storage tank; 377. Liquid inlet pipe; 378. Liquid outlet pipe; 379. Linkage unit; 3791. Movable plate 3; 3792. Limit rod 3; 3793. Transmission rack; 38. Rotating assembly; 381. Transmission gear; 382. Transmission gear ring; 383. Power source 3; 384. Fan blade; 385. Stirring blade; 39. Connecting pipe; 4. Fixed frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 10 As shown, a welding device for automobile parts of the present invention comprises: a machine platform 1; a fixing frame 4 fixedly mounted on the machine platform 1; a fixing mechanism 2 for fixing a pipe fitting; and a welding mechanism 3 for welding the pipe fitting.

[0024] The fixing mechanism 2 includes: a support column 21 rotatably mounted on the machine 1; a mounting seat 22 fixedly mounted on the top of the support column 21; a linkage gear ring 24 fixedly mounted on the support column 21; a linkage gear 23 meshingly connected to the linkage gear ring 24; a power source 25 for driving the linkage gear 23 to rotate, and the power source 25 is fixedly mounted on the machine 1; a rotating drum 26 rotatably mounted on the mounting seat 22, and two rotating drums 26 are symmetrically arranged; a fixed tube 27 fixedly mounted in the rotating drum 26; a positioning plate 28 fixedly mounted on the fixed tube 27, and two positioning plates 28 are arranged on each fixed tube 27, which are arranged up and down, and the outer diameter of the positioning plate 28 matches the inner diameter of the pipe fitting; and a support assembly 29 for supporting the inner wall of the pipe fitting, and the support assembly 29 is symmetrically arranged in two groups.

[0025] When fixing two pipe fittings, the two pipe fittings to be welded are placed in the rotating drum 26, and the pipe fittings are sleeved on the positioning plate 28. Since the two pipe fittings are arranged up and down, and the pipe fitting at the bottom is abutted against the bottom of the inner cavity of the rotating drum 26, the two positioning plates 28 respectively position the upper and lower pipe fittings. The two pipe fittings are butt-jointed together due to gravity. The positioning plate 28 can be arranged to position the pipe fittings, thereby avoiding horizontal displacement of the pipe fittings during welding and improving the welding quality of the pipe fittings.

[0026] Since in the present invention, two groups of rotating drums 26 and supporting assemblies 29 are provided, two pipes to be welded can be placed in any rotating drum 26, and the power source 25 is started to drive the interlocking gear 23 to rotate, the interlocking gear 23 drives the interlocking gear ring 24 to rotate, the interlocking gear ring 24 drives the supporting column 21 to rotate, and the supporting column 21 drives the mounting seat 22 to rotate, thereby driving the two groups of rotating drums 26 and the supporting assemblies 29 to rotate, and rotating the group of rotating drums 26 where the pipes are placed to the welding position, and then starting the welding mechanism 3 to weld the pipes. At the same time, the staff can place pipes in the rotating drum 26 where no pipes are placed, to prepare for subsequent welding.

[0027] From the above, it can be seen that two fixed workstations are provided in the present invention. By starting the power source 25, the pipes on the two workstations can be moved to the welding position in turn for welding, so that welding work can be carried out while manually removing the welded finished product and placing the pipe to be welded, thereby improving the welding efficiency and solving the problem that the existing welding device is found to have only one fixed workstation when in use, and the whole device is in a standby waiting state while the staff is fixing the pipe to be welded or removing the welded finished product, and the welding work cannot be carried out continuously, which seriously affects the welding efficiency.

[0028] It is to be added here that the power source 25 is preferably: a motor.

[0029] The support assembly 29 includes: an annular capsule 291 sleeved and mounted on the fixed tube 27, the annular capsule 291 is connected to the fixed tube 27, and the top and bottom of the annular capsule 291 are both in contact with the adjacent positioning plate 28; a linkage tube 292 fixedly mounted on the bottom end of the support column 21; a liquid guide tube 298 connecting the linkage tube 292 and the fixed tube 27; a piston 293 slidably mounted in the linkage tube 292; a linkage rod 294 fixedly connected to the piston 293, the cross section of the linkage rod 294 is square, and the bottom end of the linkage tube 292 is provided with a The rod 294 has a matching limiting opening, and the bottom end of the connecting rod 294 passes through the inner cavity of the limiting opening on the connecting tube 292; the rolling member 295 rotatably installed on the connecting rod 294, and the rolling member 295 is preferably a bull's eye ball; a fixed cylinder 296 is sleeved and installed on the connecting rod 294, and the bottom end of the fixed cylinder 296 is fixedly installed on the bottom of the inner cavity of the cooling box 361; a guide groove 297 is opened in the fixed cylinder 296, and the guide groove 297 consists of two U-shaped grooves in opposite directions and interconnected, and the rolling member 295 is rollingly installed in the guide groove 297.

[0030] The linkage tube 292 is divided into two independent spaces, upper and lower, by the piston 293 , and coolant is stored above the piston 293 .

[0031] When the support column 21 rotates, the two linkage tubes 292 can be driven to rotate, the two linkage tubes 292 drive the adjacent linkage rods 294 to rotate, and the two linkage rods 294 drive the adjacent rolling elements 295 to move along the path of the guide groove 297 .

[0032] In the initial state, one of the two groups of rotating drums 26 is located at the feeding position, and the other group is located at the welding position. The positions of the two groups of supporting components 29 correspond to the positions of the adjacent rotating drums 26, as shown in the attached figure. Fig. 9 As shown, the position of the connecting tube 292 on the left side corresponds to the position of the rotating drum 26 at the loading position, and the connecting tube 292 on the right side corresponds to the rotating drum 26 at the welding position. At the same time, the rolling element 295 on the left side is located at the lowest point of the guide groove 297, and the rolling element 295 on the right side is located at the highest point of the guide groove 297.

[0033] When two pipes to be welded are placed in the rotating drum 26 at the loading position, the power source 25 is started to interchange the positions of the two rotating drums 26. At this time, the rolling element 295 on the left side rolls from the lowest point of the guide groove 297 to the highest point of the guide groove 297, and the rolling element 295 on the right side rolls from the highest point of the guide groove 297 to the lowest point of the guide groove 297.

[0034] When the rolling member 295 on the left side rolls from the lowest point of the guide groove 297 to the highest point of the guide groove 297, it drives the connecting rod 294 to move upward, and the connecting rod 294 drives the piston 1 293 to move upward. When the piston 1 293 moves upward, it squeezes the coolant in the connecting tube 292, so that the coolant enters the fixed tube 27 through the liquid guide tube 298, and enters the annular capsule 291 through the fixed tube 27, so that the annular capsule 291 expands.

[0035] The annular capsule 291 in the present invention is made of a soft and durable material (such as latex or silicone) and has good expandability; the annular capsule 291 is in a circular ring shape, and when liquid is injected into the annular capsule 291, the volume of the annular capsule 291 will gradually increase, thereby achieving expansion.

[0036] When the annular sac 291 expands, since the annular sac 291 is restricted by the positioning plate 28, the annular sac 291 can only expand along the circumferential direction of the fixed tube 27, thereby preventing the annular sac 291 from expanding along the axial direction of the fixed tube 27; the expanded annular sac 291 is tightly attached to the inner walls of the two pipes, and can squeeze the inner walls of the pipes, thereby supporting the inner walls of the pipes, improving the stability of the pipes during welding, and further avoiding displacement of the pipes during welding, which affects the welding quality.

[0037] Moreover, when the annular sac 291 is tightly attached to the inner walls of the two pipes, a large friction force is generated between the annular sac 291 and the inner walls of the pipes, thereby fixing the pipe 27, avoiding vertical displacement of the two pipes during welding, and further improving the welding quality.

[0038] In addition, when the expanded annular sac 291 is close to the inner wall of the pipe, the coolant in the annular sac 291 can cool the inner wall of the pipe, avoiding the problem of the pipe generating a large amount of heat during the welding process, which may easily cause the pipe to deform due to heat, and further improves the welding quality.

[0039] The setting of the positioning plate 28 in the present invention can, on the one hand, play a role in positioning the pipe fitting, effectively avoiding horizontal displacement of the pipe fitting during welding, and greatly improving the stability of the pipe fitting during welding; on the other hand, it plays a role in limiting the expansion of the annular sac 291, so that the annular sac 291 can only expand along the circumferential direction of the fixed tube 27, thereby preventing the annular sac 291 from expanding along the axial direction of the fixed tube 27.

[0040] When the welding of the pipe fittings is completed, the rotating drum 26 at the welding position moves to the loading position. At this time, the rolling member 295 rolls from the highest point of the guide groove 297 to the lowest point of the guide groove 297, thereby driving the connecting rod 294 to move downward, and the connecting rod 294 drives the piston 293 to move downward, so that the coolant in the annular capsule 291 can be sucked into the connecting tube 292, so that the annular capsule 291 has no supporting and fixing function for the welded pipe fittings, thereby facilitating the staff to take out the welded pipe fittings and replace the pipe fittings to be welded.

[0041] In the present invention, by setting the fixing mechanism 2, the pipe fittings on the two workstations are moved to the welding position for welding in turn, so that the welding work can be carried out while the welded finished product is manually removed and the pipe fittings to be welded are placed, thereby improving the welding efficiency. The pipe fittings to be welded are fixed while being moved to the welding position, thus avoiding displacement of the pipe fittings during welding and improving the welding quality. At the same time, the welded pipe fittings are moved to the loading position and the fixing of the pipe fittings is released, thus facilitating the staff to take out and replace the pipe fittings to be welded.

[0042] The welding mechanism 3 includes: a slide groove 1 provided on a fixed frame 4; a movable plate 1 31 slidably installed in the slide groove 1; a laser welding machine 32 fixedly installed on the movable plate 1 31; a power source 2 33 for driving the movable plate 1 31 to move, the power source 2 33 is fixedly installed on the fixed frame 4, and the movable plate 1 31 is fixedly installed on the movable end of the power source 2 33; a limiting rod 1 34 for limiting the movable plate 1 31, the limiting rod 1 34 penetrates the side wall of the movable plate 1 31, and both ends of the limiting rod 1 34 are fixedly connected to the inner wall of the slide groove 1, through the setting of the limiting rod 1 34 and the slide groove 1, the movable plate 1 31 can be limited when moving, thereby improving the stability of the movable plate 1 31 during the movement process, and in addition, the limiting rod 1 34 can prevent the movable plate 1 31 from separating from the slide groove 1; an extrusion component 35 for auxiliary fixing of the pipe fitting; a cooling component 36 for cooling the pipe fitting; a maintenance component 37 for maintaining the pipe fitting; and a rotating component 38 for driving the pipe fitting to rotate.

[0043] When the pipe to be welded moves to the welding position, the power source 2 33 is started to drive the movable plate 1 31 close to the pipe to be welded, thereby driving the laser welding machine 32 to move to the best position from the welding position of the pipe. At this time, the laser welding machine 32 can be started to weld the pipe.

[0044] It is to be added here that the power source 2 33 is preferably: a cylinder.

[0045] The extrusion assembly 35 includes: a threaded rod 351 rotatably mounted on the fixing frame 4; a threaded tube 352 threadedly connected to the threaded rod 351; an extrusion block 355 rotatably mounted on the bottom end of the threaded tube 352, and the extrusion block 355 is truncated; a limiting tube 353 sleeved and mounted on the threaded tube 352, and the limiting tube 353 is fixedly connected to the fixing frame 4; a limiting groove provided in the limiting tube 353; a limiting bar 354 slidably mounted in the limiting groove, and the limiting bar 354 is fixedly connected to the threaded tube 352; a connecting gear 356 fixedly sleeved on the threaded rod 351; a connecting rack 357 meshingly connected to the connecting gear 356, and the connecting rack 357 is fixedly connected to the movable plate 31.

[0046] When the movable plate 31 drives the laser welding machine 32 to move to the optimal position at the welding point of the pipe fitting, it drives the connecting rack 357 to move synchronously, and the connecting rack 357 drives the linkage gear 23 to rotate, thereby driving the threaded rod 351 to rotate. Through the setting of the limiting tube 353, the limiting bar 354, and the limiting groove, the threaded tube 352 can be limited, so that the threaded tube 352 moves downward along the axial direction of the threaded rod 351, and drives the extrusion block 355 to move downward.

[0047] When the movable plate 31 drives the laser welding machine 32 to move to the optimal position at the welding point of the pipe fitting, since the extrusion block 355 is in a truncated cone shape, the bottom end of the extrusion block 355 is inserted into the pipe fitting and abuts against the side wall of the pipe fitting. At this time, the extrusion block 355 and the rotating drum 26 cooperate with each other to fix the pipe fitting in the vertical direction, thereby improving the stability of the pipe fitting during welding and further improving the welding quality.

[0048] The rotating assembly 38 includes: a transmission gear ring 382 fixedly mounted on the rotating drum 26; a transmission gear 381 meshingly connected to the transmission gear ring 382; and a power source 383 driving the transmission gear 381 to rotate. The power source 383 is fixedly mounted on the machine 1.

[0049] When the pipe to be welded rotates to the welding position, the transmission gear ring 382 and the transmission gear 381 mesh with each other. At this time, the power source three 383 is started to drive the transmission gear 381 to rotate, and the transmission gear 381 drives the transmission gear ring 382 to rotate. The transmission gear ring 382 drives the rotating drum 26 to rotate, thereby driving the pipe to rotate. At the same time, the laser welding machine 32 is started to weld the pipe. Through the rotation of the pipe, the comprehensive welding of the pipe is achieved, which further improves the welding efficiency.

[0050] It should be added here that the power source three 383 is preferably: a dual-axis motor.

[0051] The cooling assembly 36 includes: a cooling box 361 fixedly installed in the machine 1, in which coolant is stored, and the coolant box is connected to a cold source, so that the coolant in the cooling box 361 can be refrigerated, thereby ensuring the cooling effect of the coolant in the cooling box 361; a pump body 363 fixedly installed on the cooling box 361; an air guide pipe 362 connected to the air inlet end of the pump body 363, and the part of the air guide pipe 362 located in the cooling box 361 is spiral, so that when the gas passes through the threaded part of the air guide pipe 362, the coolant in the cooling box 361 can fully cool the gas in the air guide pipe 362, thereby ensuring the cooling effect of the gas on the welding part of the pipe fitting; an air outlet pipe 364 connected to the air outlet end of the pump body 363; a nozzle 365 connected to the air outlet pipe 364; a moving unit 366 that drives the nozzle 365 to move; and an air intake unit 367 connected to the air guide pipe 362.

[0052] When the laser welding machine 32 welds the pipe, the pump body 363 is started, and the cooled gas in the air guide pipe 362 can be transported to the nozzle 365 through the air outlet pipe 364, and sprayed on the welding point of the pipe through the nozzle 365, so as to achieve air cooling of the weld after the pipe is welded.

[0053] By air cooling the weld, on the one hand, the temperature of the welding area can be lowered, the accumulation of thermal stress can be reduced, thereby reducing the risk of welding deformation, improving welding quality and welding efficiency, and compared with water cooling, the cooling is more uniform, avoiding the problem of cracks or deformation in the weld caused by too fast cooling speed; on the other hand, it can remove the debris and oxides remaining in the welding process, provide a clean and smooth metal surface for the application of the curing liquid, and ensure that the curing liquid can directly act on the clean metal surface to achieve the best protective effect.

[0054] In addition, the rotating assembly 38 drives the pipe to rotate, thereby achieving comprehensive cooling of the weld of the pipe and improving the cooling efficiency.

[0055] It should be added here that a through hole is provided on the side wall of the linkage tube 292 near the bottom end. When the piston 293 moves upward, the coolant in the cooling box 361 can be sucked into the linkage tube 292 through the through hole. When the piston 293 moves downward, the sucked coolant is sprayed into the cooling box 361 through the through hole, thereby mixing the coolant in the cooling box 361, so that the cold source cools the coolant in the cooling box 361 evenly, thereby ensuring the cooling effect on the coolant in the linkage tube 292 and the gas in the air guide tube 362.

[0056] The moving unit 366 includes: a second slide groove opened on the fixed frame 4; a second movable plate 3661 slidably installed in the second slide groove, and the nozzle 365 is fixedly installed on the second movable plate 3661; a second limiting rod 3663 for limiting the second movable plate 3661, the second limiting rod 3663 penetrates the side wall of the second movable plate 3661, and both ends of the second limiting rod 3663 are fixedly connected to the inner wall of the second slide groove, through the setting of the second limiting rod 3663 and the second slide groove, the movable plate 3661 can be limited when moving, thereby improving the stability of the movable plate 3661 during the movement process. In addition, the second limiting rod 3663 can prevent the movable plate 3661 from separating from the second slide groove; a linkage rack 3662 fixedly installed on the second movable plate 3661; the linkage rack 3662 and the connecting gear 356 are arranged to mesh with each other.

[0057] When the connecting gear 356 rotates, it can drive the linkage rack 3662 to move, thereby driving the movable plate 2 3661 to move, and the movable plate 2 3661 drives the nozzle 365 to move to the best position away from the pipe welding point, thereby improving the cooling effect on the weld.

[0058] The air intake unit 367 includes: an annular tube 3671 fixedly mounted on the laser welding machine 32; a connector 3672 connected to the annular tube 3671, a plurality of connectors 3672 are provided and evenly distributed in a ring shape on the annular tube 3671; a processing box 3673 fixedly mounted on the fixing frame 4, the air guide pipe 362 is connected to the processing box 3673; an air intake pipe 3674 connecting the processing box 3673 and the annular tube 3671; and a filter element 3675 installed in the processing box 3673.

[0059] When the gas in the air duct 362 is pumped out by the pump body 363 , negative pressure is formed in the air duct 362 . At this time, the external gas enters the air duct 362 through the connector 3672 , the annular tube 3671 , the air inlet pipe 3674 , and the processing box 3673 in sequence, thereby providing gas for the air duct 362 .

[0060] Since welding produces a pungent smell, workers will inhale the smell into their lungs, which will have an impact on their health. At this time, the gas with the pungent smell enters several connectors 3672 with the airflow, and then enters the processing box 3673. Through the setting of the filter element 3675, the gas and dust with the pungent smell can be filtered, and the filtered clean gas is discharged through the air duct 362, thereby realizing the suction treatment of the gas with the pungent smell generated during the welding process, avoiding the workers from inhaling the gas into the lungs and causing health problems.

[0061] Since the gas entering the air guide pipe 362 is clean gas, when the weld is blown and cooled, it will not cause pollution to the weld, thereby improving the cleaning effect of the weld.

[0062] It should be added here that the filter element 3675 is preferably: an activated carbon filter.

[0063] The maintenance component 37 includes: a mounting shell 371; an adsorption smear body 372 mounted in the mounting shell 371; a liquid collecting pipe 373 fixedly mounted on the fixing frame 4; a piston 2 374 slidably mounted in the liquid collecting pipe 373; a push rod 375 fixedly connected to the piston 2 374, the end of the liquid collecting pipe 373 is provided with a limit opening matching the push rod 375, and the other end of the push rod 375 passes through the inner cavity of the limit opening on the liquid collecting pipe 373; a liquid storage tank 376 fixedly mounted on the machine 1, and the liquid storage tank 376 stores maintenance liquid; a liquid inlet pipe 377 connecting the liquid storage tank 376 and the liquid collecting pipe 373, and the liquid inlet pipe 377 is installed with a first one-way valve; a liquid outlet pipe 378 connecting the liquid collecting pipe 373 and the mounting shell 371, and the liquid outlet pipe 378 is installed with a second one-way valve; and a linkage unit 379 for driving the adsorption smear body 372 to move; the push rod 375 is fixedly connected to the movable plate 1 31.

[0064] The second piston 374 divides the liquid collecting pipe 373 into two independent spaces, one space stores the curing liquid and the other space stores the gas.

[0065] When the movable plate 1 31 drives the laser welding machine 32 to move to the optimal position at the welding point of the pipe fitting, the linkage unit 379 drives the adsorption smear body 372 to abut against the weld of the pipe fitting. At the same time, the movable plate 1 31 drives the push rod 375 to move, and the push rod 375 drives the piston 2 374 to slide in the liquid collecting pipe 373, thereby squeezing the curing liquid in the liquid collecting pipe 373. At this time, the first one-way valve is closed, and the second one-way valve is opened. The curing liquid enters the mounting shell 371 through the liquid outlet pipe 378, and is then absorbed by the adsorption smear body 372 and smeared on the weld of the pipe fitting.

[0066] The rotating assembly 38 drives the pipe to rotate, so that the adsorption coating body 372 evenly applies the curing liquid to the weld of the cooled pipe. The curing liquid can form a dense protective film on the surface of the weld, effectively preventing the metal from contacting with moisture and oxygen in the external environment, thereby improving the welding quality and reducing the possibility of metal rusting due to oxidation. It can maintain the gloss and integrity of the weld for a long time, thereby extending the service life of the metal structure.

[0067] It should be added here that the adsorption smear body 372 is preferably: a sponge; by using the adsorption smear body 372 to evenly apply the curing liquid to the welding parts of the pipe fittings, compared with directly spraying it on the welding parts of the pipe fittings, the application will be more comprehensive and uniform, and the curing liquid will be avoided from splashing and causing waste, so that the curing liquid can better contact the welding parts of the pipe fittings, thereby better maintaining the welds and improving the welding quality.

[0068] When the adsorption smear body 372 has finished smearing the weld of the pipe fitting, the power source 2 33 is started to drive the movable plate 1 31 to reset, and the movable plate 1 31 drives the laser welding machine 32 to reset. At the same time, the movable plate 1 31 drives the push rod 375 to reset, and the push rod 375 drives the piston 2 374 to reset. At this time, the first one-way valve is opened and the second one-way valve is closed, so that the curing liquid in the liquid storage tank 376 can be sucked into the liquid collecting pipe 373 through the liquid inlet pipe 377, preparing for subsequent use.

[0069] In the present invention, the power source 2 33 is started to drive the movable plate 1 31 to move. When the movable plate 1 31 drives the laser welding machine 32 to move to the optimal position away from the welding point of the pipe fitting, the push rod 375 is synchronously driven to move, and the push rod 375 drives the piston 2 374 to move, so that the curing liquid in the liquid collecting pipe 373 can be transported to the adsorption smear body 372. When the movable plate 1 31 drives the laser welding machine 32 to reset, the push rod 375 is synchronously driven to reset, and the push rod 375 drives the piston 2 374 to reset, so that the curing liquid in the liquid storage tank 376 can be absorbed into the liquid collecting pipe 373.

[0070] The linkage unit 379 includes: a slide groove three provided on the fixed frame 4; a movable plate three 3791 slidably installed in the slide groove three; a limit rod three 3792 for limiting the movable plate three 3791, the limit rod three 3792 passes through the side wall of the movable plate three 3791, and both ends of the limit rod three 3792 are fixedly connected to the inner wall of the slide groove three, through the setting of the limit rod three 3792 and the slide groove three, the movable plate three 3791 can be limited when moving, thereby improving the stability of the movable plate three 3791 during the movement process, in addition, the limit rod three 3792 can prevent the movable plate three 3791 from separating from the slide groove three; a transmission rack 3793 fixedly installed on the movable plate three 3791; the transmission rack 3793 and the connecting gear 356 are arranged to mesh with each other, and the movable plate three 3791 is fixedly connected to the mounting shell 371.

[0071] When the connecting gear 356 rotates, it synchronously drives the transmission rack 3793 to move, the transmission rack 3793 drives the movable plate three 3791 to move, the movable plate three 3791 drives the mounting shell 371 to move, and then drives the adsorption smearing body 372 to abut against the weld of the pipe fitting, so as to facilitate the even application of the curing liquid on the weld of the pipe fitting.

[0072] In the present invention, by starting the power source 2 33, on the one hand, the laser welding machine 32 is driven to move to the optimal position away from the welding point of the pipe fitting, and on the other hand, the nozzle 365 is synchronously driven to move to the optimal position away from the welding point of the pipe fitting, and the adsorption coating body 372 is synchronously driven to abut against the weld of the pipe fitting.

[0073] The rotating assembly 38 further includes a fan blade 384 and a stirring blade 385 coaxially connected to the transmission gear 381 .

[0074] When the power source three 383 drives the transmission gear 381 to rotate, it also drives the fan blades 384 and the stirring blades 385 to rotate synchronously. Through the rotation of the fan blades 384, suction is generated in the processing box 3673, so that the irritating odor generated during welding can be quickly sucked into the processing box 3673, thereby improving the efficiency of sucking the irritating odor.

[0075] The stirring blade 385 in the cooling box 361 can be stirred by the rotation of the stirring liquid, so that the cooling source can further cool the cooling liquid in the cooling box 361 evenly, thereby ensuring the cooling effect on the linkage pipe 292 and the air guide pipe 362.

[0076] The welding mechanism 3 further includes a connecting pipe 39 connecting the annular pipe 3671 and the liquid collecting pipe 373 .

[0077] Piston 2 374 divides the liquid collecting pipe 373 into two independent spaces, one space for storing the curing liquid and the other space for storing the gas; and a sealing ring is fixedly installed in the inner cavity of the limiting opening on the liquid collecting pipe 373 to reduce the gas in the liquid collecting pipe 373 from being discharged from the gap between the limiting opening and the push rod 375.

[0078] When the movable plate 1 31 drives the laser welding machine 32 to move to the optimal position at the welding point of the pipe fitting, the movable plate 1 31 drives the push rod 375 to move, and the push rod 375 drives the piston 2 374 to slide in the liquid collecting pipe 373. On the one hand, the curing liquid in the liquid collecting pipe 373 can be squeezed so that the curing liquid in the liquid collecting pipe 373 is transported to the adsorption smear body 372. On the other hand, the external gas is sucked into the liquid collecting pipe 373 through the connecting head 3672, the annular tube 3671, and the connecting pipe 39 in turn.

[0079] When the movable plate 1 31 drives the laser welding machine 32 to reset, it also drives the push rod 375 to reset synchronously, and the push rod 375 drives the piston 2 374 to reset. On the one hand, the curing liquid in the liquid storage tank 376 can be sucked into the liquid collecting pipe 373 through the liquid inlet pipe 377 to prepare for subsequent use. On the other hand, the gas in the liquid collecting pipe 373 is squeezed so that the gas in the liquid collecting pipe 373 is blown onto the laser welding head of the laser welding machine 32 through the connecting pipe 39, the annular pipe 3671, and the connecting head 3672 in turn, so that the dust on the surface of the laser welding head can be cleaned to prevent the dust from affecting the welding effect of the laser welding head and prepare for subsequent use.

[0080] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0081] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A welding device for automobile parts, characterized in that: include: Machine; A fixing frame fixedly mounted on the machine platform; A fixing mechanism for fixing the pipe fitting; Welding mechanism for welding pipe fittings; The fixing mechanism includes: a support column rotatably mounted on the machine platform; a mounting seat fixedly mounted on the top of the support column; a linkage gear ring fixedly sleeved on the support column; a linkage gear meshingly connected with the linkage gear ring; a power source for driving the linkage gear to rotate; a rotating drum rotatably mounted on the mounting seat; a fixing pipe fixedly mounted in the rotating drum; a positioning plate fixedly sleeved on the fixing pipe; and a supporting assembly for supporting the inner wall of the pipe; The support assembly includes: an annular sac mounted on the fixed tube, the annular sac is connected to the fixed tube; a linkage tube fixedly mounted on the bottom end of the support column; a liquid guide tube connecting the linkage tube and the fixed tube; a piston 1 slidably mounted in the linkage tube; a linkage rod fixedly connected to the piston 1; a rolling element rotatably mounted on the linkage rod; a fixed cylinder mounted on the linkage rod; a guide groove provided in the fixed cylinder, the rolling element being rotatably mounted in the guide groove.

2. A welding device for automobile parts according to claim 1, characterized in that: The welding mechanism includes: a movable plate 1 slidably mounted on the fixed frame, a laser welding machine fixedly mounted on the movable plate 1, a power source 2 for driving the movable plate 1 to move, a limiting rod 1 for limiting the movable plate 1, an extrusion component for auxiliary fixing of the pipe fitting, a cooling component for cooling the pipe fitting, a maintenance component for maintaining the pipe fitting, and a rotating component for driving the pipe fitting to rotate.

3. A welding device for automobile parts as claimed in claim 2, characterized in that: The extrusion assembly includes: a threaded rod rotatably mounted on the fixed frame; a threaded tube threadedly connected to the threaded rod; an extrusion block rotatably mounted on the bottom end of the threaded tube; a limiting tube sleeved on the threaded tube, the limiting tube is fixedly connected to the fixed frame; a limiting bar slidably mounted in the limiting tube, the limiting bar is fixedly connected to the threaded tube; a connecting gear fixedly sleeved on the threaded rod; a connecting rack meshingly connected to the connecting gear, the connecting rack being fixedly connected to a movable plate.

4. A welding device for automobile parts as claimed in claim 2, characterized in that: The cooling assembly includes: a cooling box fixedly installed in the machine, a pump body fixedly installed on the cooling box, an air duct connected to the air inlet end of the pump body, an air outlet pipe connected to the air outlet end of the pump body, a nozzle connected to the air outlet pipe, a moving unit that drives the nozzle to move, and an air inlet unit connected to the air duct.

5. A welding device for automobile parts as claimed in claim 4, characterized in that: The moving unit comprises: a second movable plate slidably mounted on the fixed frame, a second limiting rod for limiting the position of the second movable plate, and a linkage rack fixedly mounted on the second movable plate; the linkage rack and the connecting gear are meshed with each other.

6. A welding device for automobile parts as claimed in claim 4, characterized in that: The air intake unit includes: an annular tube fixedly mounted on the laser welding machine, a connector connected to the annular tube, a processing box fixedly mounted on the fixed frame, an air intake pipe connecting the processing box and the annular tube, and a filter installed in the processing box.

7. A welding device for automobile parts as claimed in claim 6, characterized in that: The maintenance component includes: a mounting shell, an adsorption smear body mounted in the mounting shell, a liquid collecting tube fixedly mounted on the fixing frame, a second piston slidably mounted in the liquid collecting tube, a pushing rod fixedly connected to the second piston, a liquid storage tank fixedly mounted on the machine platform, a liquid inlet pipe connecting the liquid storage tank and the liquid collecting tube, a liquid outlet pipe connecting the liquid collecting tube and the mounting shell, and a linkage unit for driving the adsorption smear body to move; the pushing rod is fixedly connected to a movable plate.

8. The welding device for automobile parts according to claim 7, characterized in that: The linkage unit includes: a sliding groove three opened on the fixed frame, a movable plate three slidably installed in the sliding groove three, a limiting rod three limiting the movable plate three, and a transmission rack fixedly installed on the movable plate three; the transmission rack and the connecting gear are arranged to mesh with each other, and the movable plate three is fixedly connected to the mounting shell.

9. A welding device for automobile parts as claimed in claim 2, characterized in that: The rotating assembly includes: a transmission gear ring fixedly mounted on the rotating drum; a transmission gear meshingly connected to the transmission gear ring; a power source three for driving the transmission gear to rotate; and fan blades and stirring blades coaxially connected to the transmission gear.

10. The welding device for automobile parts according to claim 7, characterized in that: The welding mechanism further comprises: a connecting pipe connecting the annular pipe and the liquid collecting pipe.

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