A welding device for automotive parts

Abstract

The present application relates to welding device technical field, specifically to a kind of welding device of automobile parts, comprising: machine table;Fixedly installed on the fixed frame of machine table;Pipe is fixed by fixed mechanism;Pipe is welded by welding mechanism.The present application, by the setting of fixed mechanism, the pipe on two stations is moved to welding place in turn to be welded, to realize artificial and place the pipe to be welded while taking down the finished product welded, welding work can also be carried out, improve welding efficiency, and the pipe to be welded is moved to welding place while completing the fixation of pipe, avoid the displacement of pipe welding, improve welding quality, while, the pipe after welding is moved to feeding place while releasing the fixation of pipe, convenient for staff to take out and replace pipe to be welded.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically to a welding device for automotive parts. Background Technology

[0002] Automotive parts are the various units that make up a car and the products that serve the car. There are many types of automotive parts, including numerous pipes. During the manufacturing of these pipes, laser welding equipment is often used to weld two pipes together. Laser welding uses high-energy laser pulses to locally heat a small area of ​​the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material and forming a specific molten pool.

[0003] Chinese patent application CN202311459240.3 discloses a pipe laser welding machine, comprising: a machine body with a worktable on its surface; a laser welding mechanism disposed on the worktable, the laser welding mechanism including a liftable and movable laser welding head; and a pipe clamping mechanism disposed on the machine body, the pipe clamping mechanism including two pipe clamping members symmetrically disposed on both sides of the laser welding head; wherein, the two pipe clamping members can be synchronously rotated by a synchronous drive to drive both sections of the pipe to rotate simultaneously. Compared with the prior art, the present invention can prevent the weld quality from being affected by the asynchronous rotation of the two sections of the pipe, thereby improving the welding quality of the pipe.

[0004] However, existing welding equipment has been found to have only one fixed station. When workers fix the pipe to be welded or remove the finished product, the entire equipment is in a standby 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 purpose of this invention is to provide a welding device for automotive parts that can effectively solve the above-mentioned technical problems.

[0007] To achieve the objectives of this invention, the following technical solution is adopted:

[0008] A welding apparatus for automotive parts includes: a machine base; a mounting frame fixedly installed on the machine base; a fixing mechanism for fixing pipe fittings; and a welding mechanism for welding pipe fittings.

[0009] The fixing mechanism includes: a support column rotatably mounted on the machine base; a mounting base fixedly mounted on the top of the support column; a linkage gear ring fixedly sleeved on the support column; a linkage gear meshing with the linkage gear ring; a power source for driving the linkage gear to rotate; a rotating drum rotatably mounted on the mounting base; a fixing pipe fixedly mounted inside the rotating drum; a positioning plate fixedly sleeved on the fixing pipe; and a support assembly for supporting the inner wall of the pipe.

[0010] The support assembly includes: an annular bladder sleeved and installed on the fixed tube, the annular bladder communicating with the fixed tube; a connecting tube fixedly installed at the bottom end of the support column; a liquid guide tube connecting the connecting tube and the fixed tube; a piston slidably installed in the connecting tube; a connecting rod fixedly connected to the piston; a rolling element rotatably installed on the connecting rod; a fixed cylinder sleeved and installed on the connecting rod; and a guide groove formed in the fixed cylinder, the rolling element being rotatably installed in the guide groove.

[0011] Furthermore, the welding mechanism includes: a slide groove first formed on the fixed frame, a movable plate first slidably installed in the slide groove first, a laser welding machine fixedly installed on the movable plate first, a power source second for moving the movable plate first, a limiting rod first for limiting the movable plate first, a pressing assembly for auxiliary fixing of the pipe, a cooling assembly for cooling the pipe, a maintenance assembly for maintaining the pipe, and a rotating assembly for driving the pipe to rotate.

[0012] 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 and mounted on the threaded tube, the limiting tube being fixedly connected to the fixed frame; a limiting groove formed in the limiting tube; a limiting strip slidably mounted in the limiting groove, the limiting strip being fixedly connected to the threaded tube; a connecting gear fixedly sleeved on the threaded rod; and a connecting rack meshing with the connecting gear, the connecting rack being fixedly connected to a movable plate.

[0013] Furthermore, the cooling assembly includes: a cooling box fixedly installed inside the machine, a pump body fixedly installed on the cooling box, an air guide pipe 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 guide pipe.

[0014] Furthermore, the moving unit includes: a second slide groove formed on the fixed frame, a second movable plate slidably installed in the second slide groove, a second limiting rod limiting the movement of the second movable plate, and a connecting rack fixedly installed on the second movable plate; the connecting rack and the connecting gear are meshed with each other.

[0015] Furthermore, the air intake unit includes: an annular tube fixedly installed on the laser welding machine, a connector communicating with the annular tube, a processing box fixedly installed on the fixed frame, an air intake pipe communicating with the processing box and the annular tube, and a filter installed inside the processing box.

[0016] Furthermore, the maintenance component includes: a mounting shell, an adsorption applicator installed in the mounting shell, a liquid collection tube fixedly installed on the mounting frame, a piston II slidably installed in the liquid collection tube, a push rod fixedly connected to the piston II, a liquid storage tank fixedly installed on the machine platform, an inlet pipe connecting the liquid storage tank and the liquid collection tube, an outlet pipe connecting the liquid collection tube and the mounting shell, and a linkage unit for moving the adsorption applicator; the push rod is fixedly connected to the movable plate I.

[0017] Furthermore, the linkage unit includes: a slide groove three formed on the fixed frame, a movable plate three slidably installed in the slide 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 meshed with each other, and the movable plate three is fixedly connected to the mounting shell.

[0018] Furthermore, the rotating assembly includes: a transmission gear ring fixedly sleeved on the rotating drum; a transmission gear meshing with the transmission gear ring; a power source three for driving the transmission gear to rotate; and fan blades and stirring blades coaxially connected with the transmission gear.

[0019] Furthermore, the welding mechanism also includes a connecting pipe that connects the annular pipe and the liquid collecting pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention discloses a welding device for automotive parts. Through the setting of a fixing mechanism, the pipes at two workstations are moved to the welding point in turn for welding. This allows for simultaneous manual removal of the welded finished product and placement of the pipe to be welded, while welding work can also be carried out, improving welding efficiency. Furthermore, the pipe to be welded is fixed at the same time as it is moved to the welding point, preventing displacement during welding and improving welding quality. At the same time, the fixing of the pipe is released when the welded pipe is moved to the loading point, making it convenient for workers to remove and replace the pipe to be welded. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] Figure 1 This is a three-dimensional schematic diagram of a welding device for automotive parts according to the present invention;

[0024] Figure 2 This is a three-dimensional schematic diagram from another perspective of a welding device for automotive parts according to the present invention.

[0025] Figure 3 This is a cross-sectional schematic diagram of the component fixing bracket of a welding device for automotive parts according to the present invention;

[0026] Figure 4 This is a three-dimensional schematic diagram of the component connecting gears of a welding device for automotive parts according to the present invention;

[0027] Figure 5 This is a cross-sectional schematic diagram of the component mounting base of a welding device for automotive parts according to the present invention;

[0028] Figure 6 This is a cross-sectional schematic diagram of the component cooling box of a welding device for automotive parts according to the present invention;

[0029] Figure 7 This is a cross-sectional schematic diagram of the component processing box of a welding device for automotive parts according to the present invention;

[0030] Figure 8 This is a cross-sectional schematic diagram of the rotating drum component of a welding device for automotive parts according to the present invention;

[0031] Figure 9 This is a schematic cross-sectional view of the connecting pipe of a welding device for automotive parts according to the present invention.

[0032] Figure 10 This is a cross-sectional schematic diagram of the component limiting tube of a welding device for automotive parts according to the present invention.

[0033] In the picture:

[0034] 1. Machine base; 2. Fixing mechanism; 21. Support column; 22. Mounting base; 23. Linking gear; 24. Linking gear ring; 25. Power source one; 26. Rotary drum; 27. Fixing pipe; 28. Positioning plate; 29. ​​Support assembly; 291. Annular bladder; 292. Linking pipe; 293. Piston one; 294. Linking rod; 295. Rolling element; 296. Fixing cylinder; 297. Guide groove; 298. Fluid guide 3. Pipe; 3. Welding mechanism; 31. Movable plate one; 32. Laser welding machine; 33. Power source two; 34. Limiting rod one; 35. Extrusion assembly; 351. Threaded rod; 352. Threaded pipe; 353. Limiting pipe; 354. Limiting 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. Air outlet pipe; 365. Nozzle; 366. Moving unit; 3661. Movable plate two; 3662. Linkage rack; 3663. Limiting rod two; 367. Air inlet unit; 3671. Annular pipe; 3672. Connector; 3673. Treatment box; 3674. Air inlet pipe; 3675. Filter element; 37. Maintenance components; 371. Mounting housing; 372. Adsorption applicator; 373. Liquid collection pipe; 3 74. Piston II; 375. Push rod; 376. Liquid storage tank; 377. Inlet pipe; 378. Outlet pipe; 379. Linkage unit; 3791. Movable plate III; 3792. Limiting rod III; 3793. Transmission rack; 38. Rotating assembly; 381. Transmission gear; 382. Transmission gear ring; 383. Power source III; 384. Fan blade; 385. Stirring blade; 39. Connecting pipe; 4. Fixing frame. Detailed Implementation

[0035] To make the objectives, 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 some embodiments of the present invention, but not all embodiments.

[0036] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0037] like Figures 1 to 10 As shown, the present invention provides a welding device for automotive parts, comprising: a machine base 1; a fixing frame 4 fixedly mounted on the machine base 1; a fixing mechanism 2 for fixing pipe fittings; and a welding mechanism 3 for welding pipe fittings.

[0038] The fixing mechanism 2 includes: a support column 21 rotatably mounted on the machine base 1; a mounting base 22 fixedly mounted on the top of the support column 21; a linkage gear ring 24 fixedly sleeved on the support column 21; a linkage gear 23 meshing with the linkage gear ring 24; a power source 25 that drives the linkage gear 23 to rotate, the power source 25 being fixedly mounted on the machine base 1; a rotating cylinder 26 rotatably mounted on the mounting base 22, two of which are symmetrically arranged; a fixing pipe 27 fixedly mounted inside the rotating cylinder 26; a positioning plate 28 fixedly sleeved on the fixing pipe 27, two of which are arranged vertically on each fixing pipe 27, and the outer diameter of the positioning plate 28 matches the inner diameter of the pipe; and a support assembly 29 that supports the inner wall of the pipe, two sets of which are symmetrically arranged.

[0039] When fixing two pipe fittings, the two pipe fittings to be welded are placed inside the rotating drum 26 and the pipe fittings are sleeved on the positioning plate 28. Since the two pipe fittings are arranged vertically, and the pipe fitting at the bottom abuts 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. Due to gravity, the two pipe fittings are joined together. The positioning plate 28 can play a role in positioning the pipe fittings, preventing the pipe fittings from shifting in the horizontal direction during welding, and improving the welding quality of the pipe fittings.

[0040] Since the present invention has two sets of rotating drums 26 and support components 29, two pipe fittings to be welded can be placed in either rotating drum 26, and the power source 25 can be started to drive the connecting gear 23 to rotate. The connecting gear 23 drives the connecting gear ring 24 to rotate, the connecting gear ring 24 drives the support column 21 to rotate, and the support column 21 drives the mounting base 22 to rotate. This can drive both sets of rotating drums 26 and support components 29 to rotate, and rotate the set of rotating drums 26 with the pipe fittings to the welding position. Then, the welding mechanism 3 is started to weld the pipe fittings. At the same time, the workers can place the pipe fittings in the rotating drums 26 without the pipe fittings to prepare for subsequent welding.

[0041] As described above, this invention features two fixed workstations. By activating the power source 25, the pipe fittings at the two workstations can be moved to the welding position in turn for welding. This allows for welding work to be performed while the welded finished product is being removed and the pipe fitting to be welded is being placed, thus improving welding efficiency. This solves the problem that existing welding devices only have one fixed workstation, and the entire device is in a standby state while the worker is fixing the pipe fitting to be welded or removing the welded finished product, which prevents continuous welding work and seriously affects welding efficiency.

[0042] It should be noted that the preferred power source 25 is an electric motor.

[0043] Support assembly 29 includes: an annular bladder 291 sleeved and installed on the fixed tube 27, the annular bladder 291 communicating with the fixed tube 27, and the top and bottom of the annular bladder 291 being in contact with the adjacent positioning plate 28; a connecting tube 292 fixedly installed at the bottom end of the support column 21; a liquid guide tube 298 connecting the connecting tube 292 and the fixed tube 27; a piston 293 slidably installed in the connecting tube 292; and a connecting rod 294 fixedly connected to the piston 293, the connecting rod 294 having a square cross-section, and the bottom end of the connecting tube 292 having a connecting rod... A limiting opening is matched to the linkage 294, and the bottom end of the linkage 294 passes through the inner cavity of the limiting opening on the linkage tube 292; a rolling element 295 is rotatably mounted on the linkage 294, preferably a bullseye ball; a fixed cylinder 296 is sleeved and mounted on the linkage 294, and the bottom end of the fixed cylinder 296 is fixedly mounted to 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 is composed of two U-shaped grooves in opposite directions and interconnected with each other, and the rolling element 295 is rotatably mounted in the guide groove 297.

[0044] The linkage 292 is divided into two independent spaces by the piston 293, with coolant stored above the piston 293.

[0045] When the support column 21 rotates, it can drive the two connecting tubes 292 to rotate. The two connecting tubes 292 drive the adjacent connecting rods 294 to rotate. The two connecting rods 294 drive the adjacent rolling elements 295 to move along the path of the guide groove 297.

[0046] Initially, one set of the two rotating drums 26 is located at the feeding point, and the other set is located at the welding point. The positions of the two sets of support assemblies 29 correspond to the positions of the adjacent rotating drums 26, as shown in the attached diagram. Figure 9 As shown, the position of the connecting pipe 292 on the left corresponds to the position of the rotating drum 26 at the feeding point, and the position of the connecting pipe 292 on the right corresponds to the position of the rotating drum 26 at the welding point. At the same time, the rolling element 295 on the left is located at the lowest point of the guide groove 297, and the rolling element 295 on the right is located at the highest point of the guide groove 297.

[0047] When two pipe fittings to be welded are placed in the rotating drum 26 located at the loading point, the power source 25 is started, thereby exchanging 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.

[0048] When 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, it drives the connecting rod 294 to move upward. The connecting rod 294 drives the piston 293 to move upward. When the piston 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 bladder 291 through the fixed tube 27, causing the annular bladder 291 to expand.

[0049] The annular capsule 291 in this invention is made of a soft and durable material (such as latex or silicone) and has good expandability. The annular capsule 291 is circular in shape, and when liquid is injected into the annular capsule 291, the volume of the annular capsule 291 will gradually increase, thereby achieving expansion.

[0050] When the annular bladder 291 expands, it is restricted by the positioning plate 28, so that the annular bladder 291 can only expand circumferentially along the fixed tube 27, thereby preventing the annular bladder 291 from expanding axially along the fixed tube 27. After expansion, the annular bladder 291 is tightly attached to the inner wall of the two pipe fittings, which can squeeze the inner wall of the pipe fittings, thereby supporting the inner wall of the pipe fittings, improving the stability of the pipe fittings during welding, and further avoiding displacement of the pipe fittings during welding, which would affect the welding quality.

[0051] Furthermore, when the annular bladder 291 is tightly attached to the inner wall of the two pipe fittings, the annular bladder 291 generates a large frictional force with the inner wall of the pipe fittings, thereby fixing the pipe fittings 27 and preventing displacement in the vertical direction during welding of the two pipe fittings, thus further improving the welding quality.

[0052] In addition, when the expanded annular bladder 291 is tightly attached to the inner wall of the pipe, the coolant in the annular bladder 291 can cool the inner wall of the pipe, avoiding the problem that the pipe will generate a lot of heat during the welding process, which can easily lead to the pipe deformation due to heat, and further improving the welding quality.

[0053] The positioning plate 28 in this invention can, on the one hand, position the pipe fittings and effectively prevent them from shifting in the horizontal direction during welding, thus greatly improving the stability of the pipe fittings during welding; on the other hand, it can limit the expansion of the annular bladder 291, so that the annular bladder 291 can only expand along the circumference of the fixed tube 27, thereby preventing the annular bladder 291 from expanding axially along the fixed tube 27.

[0054] After the pipe fitting is welded, the rotating drum 26 located at the welding point moves to the feeding point. At this time, the rolling element 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. The connecting rod 294 drives the piston 293 to move downward, so that the coolant in the annular bladder 291 can be drawn into the connecting pipe 292, so that the annular bladder 291 does not have the function of supporting and fixing the welded pipe fitting, thus making it easier for the workers to remove the welded pipe fitting and replace the pipe fitting to be welded.

[0055] In this invention, the fixing mechanism 2 enables the pipe fittings at the two workstations to be moved to the welding point in turn for welding. This allows for the simultaneous removal of the welded finished product and placement of the pipe fitting to be welded, while welding can also be performed, thus improving welding efficiency. Furthermore, the pipe fitting to be welded is fixed at the same time as it is moved to the welding point, preventing displacement during welding and improving welding quality. At the same time, the fixing of the pipe fitting is released when the welded pipe fitting is moved to the loading point, making it easier for workers to remove and replace the pipe fitting to be welded.

[0056] The welding mechanism 3 includes: a slide groove 1 formed on the fixed frame 4; a movable plate 31 slidably installed in the slide groove 1; a laser welding machine 32 fixedly installed on the movable plate 31; a second power source 33 for moving the movable plate 31, the second power source 33 being fixedly installed on the fixed frame 4, and the movable plate 31 being fixedly installed at the movable end of the second power source 33; a limiting rod 34 for limiting the movement of the movable plate 31, the limiting rod 34 penetrating the side wall of the movable plate 31, and both ends of the limiting rod 34 being fixedly connected to the inner wall of the slide groove 1. Through the setting of the limiting rod 34 and the slide groove 1, the movement of the movable plate 31 can be limited, improving the stability of the movable plate 31 during the movement process. In addition, the limiting rod 34 can prevent the movable plate 31 from separating from the slide groove 1; a pressing assembly 35 for auxiliary fixing of the pipe fitting; a cooling assembly 36 for cooling the pipe fitting; a maintenance assembly 37 for maintaining the pipe fitting; and a rotating assembly 38 for driving the pipe fitting to rotate.

[0057] When the pipe to be welded is moved to the welding point, the second power source 33 is started to drive the first movable plate 31 to approach the pipe to be welded, thereby driving the laser welding machine 32 to move to the optimal position at the welding point of the pipe. At this time, the laser welding machine 32 can be started to weld the pipe.

[0058] It should be noted that the preferred power source 233 is a cylinder.

[0059] The extrusion assembly 35 includes: a threaded rod 351 rotatably mounted on the fixed frame 4; a threaded tube 352 threadedly connected to the threaded rod 351; an extrusion block 355 rotatably mounted at the bottom end of the threaded tube 352, the extrusion block 355 being frustoconical in shape; a limiting tube 353 sleeved and mounted on the threaded tube 352, the limiting tube 353 being fixedly connected to the fixed frame 4; a limiting groove formed in the limiting tube 353; a limiting strip 354 slidably mounted in the limiting groove, the limiting strip 354 being fixedly connected to the threaded tube 352; a connecting gear 356 fixedly sleeved on the threaded rod 351; and a connecting rack 357 meshing with the connecting gear 356, the connecting rack 357 being fixedly connected to the movable plate 31.

[0060] During the process of the movable plate 31 driving the laser welding machine 32 to the optimal position at the welding point of the pipe fitting, the connecting rack 357 moves synchronously. The connecting rack 357 drives the connecting gear 23 to rotate, thereby driving the threaded rod 351 to rotate. Through the setting of the limiting tube 353, the limiting strip 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.

[0061] When the movable plate 31 moves the laser welding machine 32 to the optimal position for welding the pipe fitting, the extrusion block 355 is frustum-shaped. At this time, the bottom end of the extrusion block 355 is inserted into the pipe fitting and abuts against the side wall of the pipe fitting. Through the cooperation between the extrusion block 355 and the rotating drum 26, the pipe fitting is fixed in the vertical direction, thereby improving the stability of the pipe fitting during welding and further improving the welding quality.

[0062] The rotating assembly 38 includes: a transmission gear ring 382 fixedly sleeved on the rotating drum 26; a transmission gear 381 meshing with the transmission gear ring 382; and a power source 383 that drives the transmission gear 381 to rotate, the power source 383 being fixedly installed on the machine base 1.

[0063] When the pipe to be welded rotates to the welding point, the transmission gear ring 382 and the transmission gear 381 mesh with each other. At this time, the power source 383 is started to drive the transmission gear 381 to rotate, the transmission gear 381 drives the transmission gear ring 382 to rotate, and 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 full welding of the pipe is achieved, which further improves the welding efficiency.

[0064] It should be noted that the preferred power source 383 is a dual-shaft motor.

[0065] The cooling assembly 36 includes: a cooling tank 361 fixedly installed inside the machine base 1, which stores coolant and is connected to a cold source to cool the coolant in the cooling tank 361, thus ensuring the cooling effect of the coolant in the cooling tank 361; a pump body 363 fixedly installed on the cooling tank 361; an air guide pipe 362 connected to the air inlet end of the pump body 363, the part of the air guide pipe 362 inside the cooling tank 361 being spiral-shaped, so that when the gas passes through the threaded part of the air guide pipe 362, the coolant in the cooling tank 361 can fully cool the gas in the air guide pipe 362, thereby ensuring the cooling effect of the gas on the welded joint 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 inlet unit 367 connected to the air guide pipe 362.

[0066] When the laser welding machine 32 welds the pipe fitting, the pump body 363 is started, which can deliver the cooled gas in the air guide pipe 362 to the nozzle 365 through the air outlet pipe 364, and spray it onto the weld of the pipe fitting through the nozzle 365, thereby achieving air cooling of the weld after the pipe fitting is welded.

[0067] Air cooling of the weld seam can lower the temperature of the welding area, reduce the accumulation of thermal stress, thereby reducing the risk of welding deformation and improving welding quality and efficiency. Compared with water cooling, the cooling is more uniform, avoiding the problem of weld seam cracking or deformation caused by excessively rapid cooling. On the other hand, it can remove residual debris and oxides from the welding process, providing a clean and smooth metal surface for the application of the curing solution, ensuring that the curing solution can directly act on the clean metal surface and achieve the best protective effect.

[0068] In addition, the rotating component 38 drives the pipe fitting to rotate, thereby achieving comprehensive cooling of the weld seam of the pipe fitting and improving cooling efficiency.

[0069] It should be noted that a through hole is provided on the side wall of the linkage pipe 292 near the bottom. When the piston 293 moves upward, the coolant in the cooling box 361 can be drawn into the linkage pipe 292 through the through hole. When the piston 293 moves downward, the drawn-in coolant is sprayed into the cooling box 361 through the through hole. This mixes the coolant in the cooling box 361, ensuring that the cold source cools the coolant in the cooling box 361 evenly, thus guaranteeing the cooling effect on the coolant in the linkage pipe 292 and the gas in the air guide pipe 362.

[0070] The moving unit 366 includes: a second slide groove formed on the fixed frame 4; a second movable plate 3661 slidably installed in the second slide groove, with a nozzle 365 fixedly installed on the second movable plate 3661; a second limiting rod 3663 that limits the movement of the second movable plate 3661, the second limiting rod 3663 penetrating the side wall of the second movable plate 3661, and both ends of the second limiting rod 3663 being 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 movement of the second movable plate 3661 can be limited, improving the stability of the second movable plate 3661 during movement. In addition, the second limiting rod 3663 can prevent the second 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 meshed with each other.

[0071] When the connecting gear 356 rotates, it can drive the connecting rack 3662 to move, thereby driving the movable plate 3661 to move. The movable plate 3661 drives the nozzle 365 to move to the optimal position at the welding point of the pipe fitting, thereby improving the cooling effect on the weld.

[0072] The air intake unit 367 includes: an annular pipe 3671 fixedly installed on the laser welding machine 32; a connector 3672 communicating with the annular pipe 3671, wherein multiple connectors 3672 are provided and are evenly distributed in a ring on the annular pipe 3671; a processing box 3673 fixedly installed on the mounting frame 4, wherein the air guide pipe 362 communicates with the processing box 3673; an air intake pipe 3674 connecting the processing box 3673 and the annular pipe 3671; and a filter element 3675 installed inside the processing box 3673.

[0073] When the gas in the gas duct 362 is drawn out by the pump body 363, a negative pressure is formed in the gas duct 362. At this time, the external gas enters the gas duct 362 in sequence through the connector 3672, the annular pipe 3671, the air inlet pipe 3674, and the processing box 3673, thereby providing gas to the gas duct 362.

[0074] Because welding produces irritating odors, inhaling these odors can harm workers' health. The irritating odor is then carried by airflow into several connectors 3672, and subsequently into a treatment box 3673. A filter 3675 filters out the irritating odor and dust. The filtered clean gas is then discharged through a vent pipe 362, thus effectively removing the irritating odor generated during welding and preventing workers from inhaling it and harming their health.

[0075] Since the gas entering the gas duct 362 is clean gas, it will not contaminate the weld when the weld is cooled by blowing air, thus improving the cleaning effect of the weld.

[0076] It should be noted that filter element 3675 is preferably an activated carbon filter.

[0077] The maintenance component 37 includes: a mounting housing 371; an adsorption applicator 372 installed in the mounting housing 371; a collection tube 373 fixedly installed on the mounting bracket 4; a piston 374 slidably installed in the collection tube 373; a push rod 375 fixedly connected to the piston 374; a limiting opening at the end of the collection tube 373 that matches the push rod 375; the other end of the push rod 375 passing through the inner cavity of the limiting opening on the collection tube 373; a storage tank 376 fixedly installed on the machine base 1, which stores maintenance fluid; an inlet pipe 377 connecting the storage tank 376 and the collection tube 373, with a first one-way valve installed on the inlet pipe 377; an outlet pipe 378 connecting the collection tube 373 and the mounting housing 371, with a second one-way valve installed on the outlet pipe 378; and a linkage unit 379 that moves the adsorption applicator 372; the push rod 375 is fixedly connected to the movable plate 31.

[0078] Piston 2 374 divides the liquid collecting tube 373 into two independent spaces: one space stores the maintenance fluid and the other space stores the gas.

[0079] As the movable plate 31 moves the laser welding machine 32 to the optimal position at the pipe fitting welding point, the linkage unit 379 drives the adsorption coating body 372 to abut against the weld seam of the pipe fitting. At the same time, the movable plate 31 drives the push rod 375 to move, and the push rod 375 drives the piston 374 to slide inside the liquid collection pipe 373, thereby squeezing the curing liquid inside the liquid collection pipe 373. At this time, the first one-way valve closes and the second one-way valve opens. The curing liquid enters the mounting shell 371 through the liquid outlet pipe 378, and is then absorbed by the adsorption coating body 372 and applied to the weld seam of the pipe fitting.

[0080] The rotating component 38 drives the pipe to rotate, so that the adsorption coating body 372 can evenly apply the curing liquid to the weld of the cooled pipe. The curing liquid can form a dense protective film on the weld surface, effectively preventing the metal from contacting moisture and oxygen in the external environment, improving the welding quality, thereby reducing the possibility of metal rusting due to oxidation, maintaining the luster and integrity of the weld for a long time, and extending the service life of the metal structure.

[0081] It should be noted that the preferred adsorbent 372 is a sponge. The curing liquid is evenly applied to the weld joint of the pipe fitting by the adsorbent 372. Compared with spraying directly onto the weld joint of the pipe fitting, the application is more comprehensive and even, and avoids splashing of the curing liquid, which would lead to waste. This allows the curing liquid to better contact the weld joint of the pipe fitting, thereby better curing the weld and improving the welding quality.

[0082] After the adsorption coating 372 has finished applying the coating to the weld seam of the pipe fitting, the second power source 33 is started to drive the first movable plate 31 to reset. The first movable plate 31 drives the laser welding machine 32 to reset. At the same time, the first movable plate 31 drives the push rod 375 to reset, and the push rod 375 drives the second piston 374 to reset. At this time, the first one-way valve opens and the second one-way valve closes, so that the curing liquid in the storage tank 376 can be drawn into the collection pipe 373 through the inlet pipe 377, preparing for subsequent use.

[0083] In this invention, the second power source 33 drives the first movable plate 31 to move. When the first movable plate 31 drives the laser welding machine 32 to the optimal position at the welding point of the pipe fitting, it simultaneously drives the push rod 375 to move. The push rod 375 drives the second piston 374 to move, thereby transporting the curing liquid in the collection pipe 373 to the adsorption coating body 372. When the first movable plate 31 drives the laser welding machine 32 to reset, it simultaneously drives the push rod 375 to reset. The push rod 375 drives the second piston 374 to reset, thereby drawing the curing liquid in the storage tank 376 into the collection pipe 373.

[0084] The linkage unit 379 includes: a slide groove 3 formed on the fixed frame 4; a movable plate 3791 slidably installed in the slide groove 3; a limiting rod 3792 that limits the movable plate 3791, the limiting rod 3792 passing through the side wall of the movable plate 3791, and both ends of the limiting rod 3792 being fixedly connected to the inner wall of the slide groove 3. Through the setting of the limiting rod 3792 and the slide groove 3, the movable plate 3791 can be limited when it moves, improving the stability of the movable plate 3791 during the movement process. In addition, the limiting rod 3792 can prevent the movable plate 3791 from separating from the slide groove 3; a transmission rack 3793 fixedly installed on the movable plate 3791; the transmission rack 3793 and the connecting gear 356 are meshed with each other, and the movable plate 3791 is fixedly connected to the mounting shell 371.

[0085] When the connecting gear 356 rotates, it synchronously drives the transmission rack 3793 to move. The transmission rack 3793 drives the movable plate 3791 to move. The movable plate 3791 drives the mounting shell 371 to move, which in turn drives the adsorption coating body 372 to abut against the weld of the pipe fitting, thereby facilitating the even application of the curing liquid to the weld of the pipe fitting.

[0086] In this invention, by activating the second power source 33, on the one hand, the laser welding machine 32 is moved to the optimal position at the distance from the pipe welding point; on the other hand, the nozzle 365 is moved to the optimal position at the distance from the pipe welding point simultaneously; and on the other hand, the adsorption coating body 372 is simultaneously brought into contact with the weld seam of the pipe.

[0087] The rotating assembly 38 also includes a fan blade 384 and a stirring blade 385 that are coaxially connected to the transmission gear 381.

[0088] When the power source 383 drives the transmission gear 381 to rotate, it also drives the fan blade 384 and the stirring blade 385 to rotate simultaneously. The rotation of the fan blade 384 generates suction in the treatment box 3673, which can quickly draw the irritating odor generated during welding into the treatment box 3673, thereby improving the efficiency of irritating odor absorption.

[0089] The rotation of the stirring liquid can stir the stirring blades 385 in the cooling tank 361, further ensuring that the cooling source cools the coolant in the cooling tank 361 evenly, thus guaranteeing the cooling effect on the connecting pipe 292 and the air guide pipe 362.

[0090] The welding mechanism 3 also includes a connecting pipe 39 that connects the annular pipe 3671 and the liquid collecting pipe 373.

[0091] Piston 2 374 divides the liquid collecting tube 373 into two independent spaces, one space for storing curing fluid and the other space for storing gas; and a sealing ring is fixedly installed in the inner cavity of the limiting opening on the liquid collecting tube 373, thereby reducing the gas in the liquid collecting tube 373 from escaping from the gap between the limiting opening and the push rod 375.

[0092] As the movable plate 31 moves the laser welding machine 32 to the optimal position at the pipe welding point, the movable plate 31 moves the push rod 375, which in turn moves the piston 374 to slide within the collecting pipe 373. This squeezes the curing liquid within the collecting pipe 373, allowing it to be transported to the adsorption coating body 372. Simultaneously, it draws external gas into the collecting pipe 373 through the connector 3672, the annular pipe 3671, and the connecting pipe 39.

[0093] When the movable plate 31 drives the laser welding machine 32 to reset, it simultaneously drives the push rod 375 to reset. The push rod 375 drives the piston 374 to reset. On the one hand, the curing liquid in the storage tank 376 can be drawn into the collection pipe 373 through the liquid inlet pipe 377 to prepare for subsequent use. On the other hand, the gas in the collection pipe 373 is compressed, so that the gas in the collection 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 connector 3672 in sequence. This can clean the dust on the surface of the laser welding head and prevent the dust from affecting the welding effect of the laser welding head, thus preparing for subsequent use.

[0094] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0095] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A welding apparatus for automotive parts, characterized in that, include: Machine tool; A fixed frame that is fixedly installed on the machine base; A fixing mechanism for securing pipe fittings; Welding mechanism for welding pipe fittings; The fixing mechanism includes: a support column rotatably mounted on the machine base; a mounting base fixedly mounted on the top of the support column; a linkage gear ring fixedly sleeved on the support column; a linkage gear meshing with the linkage gear ring; a power source for driving the linkage gear to rotate; a rotating drum rotatably mounted on the mounting base; a fixed pipe fixedly mounted inside the rotating drum; a positioning plate fixedly sleeved on the fixed pipe; and a support assembly for supporting the inner wall of the pipe; two sets of the rotating drum and the support assembly are provided. The support assembly includes: an annular bladder sleeved and installed on the fixed tube, the annular bladder communicating with the fixed tube; a connecting tube fixedly installed at the bottom end of the support column; a liquid guide tube communicating with the connecting tube and the fixed tube; a piston slidably installed in the connecting tube; a connecting rod fixedly connected to the piston; a rolling element rotatably installed on the connecting rod; a fixed cylinder sleeved and installed on the connecting rod; and a guide groove opened in the fixed cylinder, the guide groove consisting of two U-shaped grooves in opposite directions and communicating with each other, the rolling element being rotatably installed in the guide groove; The welding mechanism includes: a movable plate slidably mounted on the fixed frame, a laser welding machine fixedly mounted on the movable plate 1, a power source 2 that drives the movable plate 1 to move, a limiting rod 1 that limits the movable plate 1, an extrusion assembly for auxiliary fixing of the pipe fitting, and a cooling assembly for cooling the pipe fitting. 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 and mounted on the threaded tube, the limiting tube being fixedly connected to the fixed frame; a limiting strip slidably mounted inside the limiting tube, the limiting strip being fixedly connected to the threaded tube; a connecting gear fixedly sleeved on the threaded rod; and a connecting rack meshing with the connecting gear, the connecting rack being fixedly connected to a movable plate. The cooling assembly includes: a cooling box fixedly installed inside the machine, a pump body fixedly installed on the cooling box, an air guide pipe 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 guide pipe; a through hole is provided on the side wall of the connecting pipe near the bottom end, and the coolant in the cooling box can be drawn into the connecting pipe through the through hole; The moving unit includes: a movable plate two slidably mounted on the fixed frame, a limiting rod two limiting the movable plate two, and a connecting rack fixedly mounted on the movable plate two; the connecting rack and the connecting gear are meshed with each other.

2. The welding apparatus for automotive parts as described in claim 1, characterized in that, The welding mechanism also includes: a maintenance component for maintaining the pipe fittings, and a rotating component for driving the pipe fittings to rotate.

3. The welding apparatus for automotive parts as described in claim 2, characterized in that, The air intake unit includes: an annular tube fixedly installed on the laser welding machine, a connector communicating with the annular tube, a processing box fixedly installed on the fixed frame, an air intake pipe connecting the processing box and the annular tube, and a filter installed inside the processing box.

4. The welding apparatus for automotive parts as described in claim 3, characterized in that, The maintenance components include: a mounting shell, an adsorption applicator installed inside the mounting shell, a collection tube fixedly installed on the mounting frame, a piston II slidably installed inside the collection tube, a push rod fixedly connected to the piston II, a storage tank fixedly installed on the machine platform, an inlet pipe connecting the storage tank and the collection tube, an outlet pipe connecting the collection tube and the mounting shell, and a linkage unit for moving the adsorption applicator; the push rod is fixedly connected to a movable plate I.

5. The welding apparatus for automotive parts as described in claim 4, characterized in that, The linkage unit includes: a slide groove three formed on the fixed frame, a movable plate three slidably installed in the slide 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 meshed with each other, and the movable plate three is fixedly connected to the mounting shell.

6. The welding apparatus for automotive parts as described in claim 2, characterized in that, The rotating assembly includes: a transmission gear ring fixedly sleeved on the rotating drum; a transmission gear meshing with the transmission gear ring; a power source three that drives the transmission gear to rotate; and fan blades and stirring blades coaxially connected to the transmission gear.

7. The welding apparatus for automotive parts as described in claim 4, characterized in that, The welding mechanism further includes a connecting pipe that connects the annular pipe and the liquid collecting pipe.

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