Auxiliary welding device for automobile parts

Abstract

The invention belongs to the technical field of automobile part auxiliary welding, and particularly relates to an automobile part auxiliary welding device which comprises a workbench, a bottom welding box is fixedly connected to the upper surface of the workbench, two side plates are fixedly connected to the upper surface of the workbench, and a driving assembly is arranged on one side of each side plate. Limiting frames are arranged on the sides, close to each other, of the two side plates, the limiting frames are driven through a driving assembly, the same welding head is arranged on the upper surfaces of the two side plates in a sliding mode, first guide rails are fixedly connected to the upper surfaces of the two side plates, the two first guide rails are connected with the same second guide rail in a sliding mode, and the second guide rail is connected with the two side plates in a sliding mode. The lower surface of the second guide rail is slidably connected with a third guide rail, the lower surface of the sliding block is fixedly connected with a welding head, the welding head is used for welding the abutting joint position of the upper end faces of the two parts, and by arranging the grinding assembly and the dissolving assembly, the problem that oil stains are attached to the abutting joint end faces of workpieces or cutting burrs are left is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary welding of automobile parts, in particular to an auxiliary welding device for automobile parts. Background Art

[0002] As the cornerstone of the development of the automotive industry, auto parts are crucial to its sustainable and healthy development. During the processing, welding equipment is often needed to accurately and efficiently achieve stable welding of two or more parts to ensure the overall performance and quality of the car.

[0003] A patent with publication number CN111318845A discloses an auxiliary welding device for automobile parts, including a fixing seat. When in use, two automobile parts are placed inside the U-shaped frame, and the electric telescopic rod is started. The electric telescopic rod will drive the clamping plate to move downward, so that the automobile parts are clamped and fixed by the clamping plate. The friction between the automobile parts and the clamping plate can be increased by the fixing teeth, so as to facilitate the clamping and fixing of the automobile parts, and prevent the automobile parts from slipping from the inside of the clamping plate due to the centrifugal force generated during rotation, which affects the welding of the automobile parts. After the fixing is completed, the threaded rod is twisted, and the threaded rod will drive the U-shaped frame to move, so that the welding parts of the two automobile parts are connected, and then the automobile parts are welded. During this period, the motor is started, and the motor will drive the second pulley to rotate, thereby driving the U-shaped frame to rotate through the belt, so as to weld other parts of the automobile parts. During this period, when rotating, the rotating shaft will drive the airbag to reel, so as to discharge the gas inside the airbag to the outside of the air guide cover.

[0004] However, during the use of existing auxiliary welding devices for automotive parts, when oil stains or residual cutting burrs adhere to the butt end faces of the workpieces, multiple quality problems will arise. First, the oil stains will undergo a carbonization reaction during high-temperature welding, resulting in defects such as pores and slag inclusions in the welds, causing a decrease in welding strength and directly affecting the fatigue resistance of the structural parts. Secondly, metal burrs will hinder the precise alignment of the workpieces, create assembly gaps, and cause the welding path to shift, resulting in problems such as cold welding or insufficient penetration. In addition, oil vapor will contaminate the optical lens in the closed welding chamber and reduce the energy transmission efficiency of the laser welding head.

[0005] To this end, the present invention provides an auxiliary welding device for automobile parts. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the auxiliary welding device for automobile parts described in the present invention comprises a workbench, a bottom welding box is fixedly connected to the upper surface of the workbench, two side plates are fixedly connected to the upper surface of the workbench, a driving assembly is arranged on one side of each side plate, a limiting frame is arranged on the side where the two side plates are close to each other, the limiting frame is driven by the driving assembly, and the upper surfaces of the two side plates are slidably provided with the same welding head,

[0008] The upper surfaces of the two side plates are fixedly connected with a first guide rail, the two first guide rails are slidably connected with the same second guide rail, the lower surface of the second guide rail is slidably connected with a third guide rail, the lower surface of the third guide rail is slidably connected with a sliding block, the lower surface of the sliding block is fixedly connected with a welding head, and the welding head is used for welding the abutment of the upper end surfaces of the two components;

[0009] A grinding component is also slidably arranged on the lower surface of the second guide rail, and the grinding component is used to grind the ends of the two components. During the operation of the grinding component, a dissolving component on the upper surface of one of the limit frames will be triggered, and the dissolving component is used to dissolve the oil stains attached to the ends of the two components.

[0010] Preferably, the driving assembly includes a support plate fixedly connected to one side of the side plate, a motor is fixedly connected to the upper surface of the support plate, a rotating shaft is fixedly connected to the output end of the motor, the rotating shaft is a reciprocating screw, a limiting frame is slidably connected to the circumferential surface of the rotating shaft, two auxiliary rods are fixedly connected to one side of the limiting frame, and the auxiliary rods pass through the side plate.

[0011] Preferably, the polishing assembly includes a fourth guide rail slidably arranged on the lower surface of the second guide rail, and the lower surface of the fourth guide rail is slidably connected to two limit blocks, and the lower surface of one of the limit blocks is rotatably connected to a connecting column, and the connecting column is a polishing rod that can polish the end faces of two components.

[0012] Preferably, the grinding assembly further comprises a gear fixedly connected to the circumferential surface of the connecting column, wherein a rack plate is fixedly connected to the upper surface of one of the limit frames, and the gear can rotate along the rack plate.

[0013] Preferably, the grinding assembly further includes a limit block on the lower surface of the third guide rail, and the lower surface of the limit block is rotatably connected to a rotating column made of sponge material, which can adhere and clean metal powder generated by grinding.

[0014] Preferably, the dissolving component includes a shift plate fixedly connected to one side of the limit block, wherein a fixed box is provided on the upper surface of one of the limit frames, a fixed cavity is provided inside the fixed box, a connecting pipe is fixedly connected to the lower surface of the fixed box, one end of the connecting pipe is fixedly connected to a horizontal plate, a surface of the horizontal plate is provided with a plurality of spray holes, and ethanol solution is stored in the fixed cavity.

[0015] Preferably, a positioning shaft is fixedly connected to one side of the fixed box, a torsion spring is sleeved on the circumferential surface of the positioning shaft, a paddle is fixedly connected to the circumferential surface of the torsion spring, the paddle plate can paddle the paddle, one end of the paddle is fixedly connected to a sealing disk, a fixing hole is opened at the bottom of the fixed box, the sealing disk is used to seal the fixing hole, the paddle plate paddles as the limit block moves, after the paddle is paddled, the paddle rotates a certain angle to release the seal of the fixing hole, at this time, the pressure pump built into the fixed box will pressurize the ethanol solution in the fixed box into the connecting pipe, thereby spraying it out from a number of spray holes on one side of the cross plate, so that during the grinding process of the connecting column, the oil stains on the ends of the components can be dissolved at the same time.

[0016] Preferably, the rotating column made of sponge material can clean the metal dust adhering to the end of the component and absorb the dissolved oil stains during the movement of the limit block.

[0017] Preferably, a scraping assembly is provided on one side of the side panel, and the scraping assembly includes a fixed guide rail fixedly connected to one side of the side panel, a fixed groove is provided on one side of the fixed guide rail, two fixed plates are slidably arranged in the fixed groove, and arc-shaped clamping blocks are fixedly connected to the sides of the two fixed plates close to each other, and the two arc-shaped clamping blocks can clean the rotating column of the sponge material and scrape off the ethanol and oil mixture adsorbed on the rotating column of the sponge material.

[0018] Preferably, a cleaning plate is fixedly connected to the inner upper surface of each of the limiting frames, and the cleaning plate can clean the surface of the component.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The auxiliary welding device for automobile parts described in the present invention places two parts to be welded on a bottom welding box, and drives the limit frame through a driving component to position and clamp the parts to ensure the stability of the welding process. Subsequently, the welding head, under the coordinated action of the second guide rail, the third guide rail and the sliding block, accurately slides along a preset path to the abutment of the parts to perform the welding operation. While the welding head is working, the bottom welding box performs the welding operation synchronously with it; and by setting a grinding component, before welding, the grinding component will automatically and carefully grind the end of the part to remove surface defects. In addition, the dissolving component on the limit frame will be triggered during the grinding process, and the component can effectively dissolve the oil stains attached to the end of the part, further improving the welding quality and avoiding the negative impact of the oil stains on the welding effect.

[0021] 2. The automobile parts auxiliary welding device described in the present invention enables the grinding assembly to flexibly adjust its position by sliding the fourth guide rail on the lower surface of the second guide rail. Two limit blocks are slidably connected on the lower surface of the fourth guide rail, one of the limit blocks is connected to a connecting column by a rotational connection, and the lower end of the connecting column is a grinding rod. When the end faces of the two parts need to be polished, the positions of the fourth guide rail and the limit blocks are adjusted to allow the grinding rod to pass through the end faces between the two parts, and the end faces of the two parts that are about to abut are polished, which not only improves the grinding accuracy and efficiency, but also enhances the flexibility and adaptability of the grinding assembly.

[0022] 3. An auxiliary welding device for automobile parts described in the present invention is characterized in that a positioning shaft is fixedly connected to one side of a fixed box, a torsion spring is sleeved on the circumferential surface of the positioning shaft, a paddle is fixedly connected to the circumferential surface of the torsion spring, the paddle can paddle, one end of the paddle is fixedly connected to a sealing disk, a fixing hole is opened at the bottom of the fixed box, the sealing disk is used to seal the fixing hole, the paddle moves the paddle as the limit block moves, after the paddle is paddled, the paddle rotates a certain angle to release the seal of the fixing hole, at this time, the pressure pump built into the fixed box will pressurize the ethanol solution in the fixed box into the connecting pipe, so that it is sprayed out from a plurality of spray holes on one side of the horizontal plate, so that the oil stains on the end of the component can be dissolved while the connecting column is being polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0026] Figure 3 It is a front view of the main body of the present invention;

[0027] Figure 4It is a schematic structural diagram of the grinding assembly of the present invention;

[0028] Figure 5 is a schematic diagram of the structure of the dissolving component of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the fixed box of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the fixed guide rail of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the arc-shaped clamp block of the present invention;

[0032] In the figure: 1. workbench; 11. bottom welding box;

[0033] 2. Side plate; 21. Support plate; 22. Motor; 23. Rotating shaft; 24. Limiting frame; 25. Auxiliary rod;

[0034] 3. First guide rail; 31. Second guide rail; 32. Third guide rail; 33. Fourth guide rail; 34. Sliding block; 35. Welding head; 36. Limiting block; 37. Rotating column; 38. Gear; 39. Rack plate; 310. Connecting column;

[0035] 4. paddle; 41. fixed box; 42. fixed cavity; 43. paddle; 44. sealing disk; 45. positioning shaft; 46. torsion spring; 47. fixing hole; 48. connecting pipe; 49. horizontal plate; 410. spray hole;

[0036] 5. Fixed guide rail; 51. Fixed groove; 52. Fixed plate; 53. Arc clamping block;

[0037] 6. Clean the board. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1: Figures 1 to 8As shown, an auxiliary welding device for automobile parts according to an embodiment of the present invention comprises a workbench 1, a bottom welding box 11 is fixedly connected to the upper surface of the workbench 1, two side panels 2 are fixedly connected to the upper surface of the workbench 1, a driving assembly is arranged on one side of each side panel 2, a limiting frame 24 is arranged on the side where the two side panels 2 are close to each other, the limiting frame 24 is driven by the driving assembly, a same welding head 35 is slidably arranged on the upper surfaces of the two side panels 2, a first guide rail 3 is fixedly connected to the upper surfaces of the two side panels 2, and the two first guide rails 3 are slidably connected to the same second guide rail 3. Two guide rails 31, the lower surface of the second guide rail 31 is slidably connected to the third guide rail 32, the lower surface of the third guide rail 32 is slidably connected to the sliding block 34, the lower surface of the sliding block 34 is fixedly connected to the welding head 35, the welding head 35 is used for welding the abutment of the upper end surfaces of the two components; the lower surface of the second guide rail 31 is also slidably provided with a grinding component, the grinding component is used for grinding the ends of the two components, and the operation of the grinding component will trigger the dissolving component on the upper surface of one of the limit frames 24, and the dissolving component is used for dissolving the oil stains attached to the ends of the two components.

[0040] Specifically, when the existing auxiliary welding device for automobile parts is used, when oil stains or residual cutting burrs are attached to the butt end faces of the workpieces, multiple quality problems will be caused. First, the oil stains will undergo a carbonization reaction during high-temperature welding, resulting in defects such as pores and slag inclusions in the welds, causing the welding strength to decrease, directly affecting the fatigue resistance of the structural parts. Secondly, the metal burrs will hinder the precise alignment of the workpieces, produce assembly gaps, and cause the welding path to shift, resulting in cold welding or insufficient penetration. In addition, the oil stain vapor will contaminate the optical lens in the closed welding cavity, reducing the energy transmission efficiency of the laser welding head 35;

[0041] Therefore, the present invention solves this problem by setting a certain structure. First, the two parts to be welded are placed on the bottom welding box 11, and the limit frame 24 is driven by the driving assembly to position and clamp the parts to ensure the stability of the welding process. Then, the welding head 35 slides accurately along the preset path to the abutment of the parts under the coordinated action of the second guide rail 31, the third guide rail 32 and the sliding block 34 to perform the welding operation. While the welding head 35 is working, the bottom welding box 11 performs the welding operation synchronously with it.

[0042] And by setting a grinding component, before welding, the grinding component will automatically grind the end of the component carefully to remove surface defects. In addition, the dissolving component on the limit frame 24 will be triggered during the grinding process, which can effectively dissolve the oil stains attached to the end of the component, further improving the welding quality and avoiding the negative impact of oil stains on the welding effect;

[0043] The auxiliary welding device not only realizes the rapid positioning, clamping and precise welding of parts, but also significantly improves the welding reliability and the bonding strength of parts through the dual pretreatment of grinding and dissolving oil stains.

[0044] The problem of oil stains or residual cutting burrs on the workpiece joint end faces is solved.

[0045] like Figure 1 As shown, the driving assembly of this embodiment includes a support plate 21 fixedly connected to one side of the side plate 2, a motor 22 is fixedly connected to the upper surface of the support plate 21, a rotating shaft 23 is fixedly connected to the output end of the motor 22, the rotating shaft 23 is a reciprocating screw, and a limiting frame 24 is slidably connected to the circumferential surface of the rotating shaft 23, and two auxiliary rods 25 are fixedly connected to one side of the limiting frame 24, and the auxiliary rods 25 pass through the side plate 2.

[0046] Specifically, after the motor 22 is started, its output end drives the rotating shaft 23 to rotate, and the limit frame 24 is connected to the rotating shaft 23 through a rotating connection, and is limited by two auxiliary rods 25. Therefore, the limit frame 24 can slide along the rotating shaft 23 as the rotating shaft 23 rotates, and the two limit frames 24 gradually approach each other to achieve the abutment and clamping of the two components. The auxiliary rod 25 fixed on one side of the limit frame 24 passes through the side plate 2, which plays a supporting and guiding role, ensuring the stability and accuracy of the limit frame 24 during the swinging process, and achieving the abutment and limiting of the two components.

[0047] like Figures 2 to 4 As shown, the grinding assembly of this embodiment includes a fourth guide rail 33 slidably arranged on the lower surface of the second guide rail 31, and the lower surface of the fourth guide rail 33 is slidably connected to two limit blocks 36, and the lower surface of one of the limit blocks 36 is rotatably connected to a connecting column 310, which is a grinding rod and can grind the end faces of two components.

[0048] Specifically, the fourth guide rail 33 slides on the lower surface of the second guide rail 31, so that the grinding assembly can flexibly adjust its position. The two limit blocks 36 are slidably connected on the lower surface of the fourth guide rail 33. One of the limit blocks 36 is connected to the connecting column 310 by a rotational connection. The lower end of the connecting column 310 is a grinding rod. When the end faces of two components need to be polished, the position of the fourth guide rail 33 and the limit blocks 36 is adjusted to allow the grinding rod to pass through the end faces between the two components, so that the end faces of the two components that are about to abut are polished. This not only improves the grinding accuracy and efficiency, but also enhances the flexibility and adaptability of the grinding assembly.

[0049] like Figure 2 As shown, the grinding assembly of this embodiment further includes a gear 38 fixedly connected to the circumferential surface of the connecting column 310 , and a rack plate 39 is fixedly connected to the upper surface of one of the limit frames 24 , and the gear 38 can rotate along the rack plate 39 .

[0050] Specifically, by setting the rack plate 39 of the grinding assembly on the upper surface of the limit frame 24, when the grinding rod passes between the abutting surfaces of the two components, the gear 38 on the circumferential surface of the connecting column 310 can rotate along the rack plate 39, thereby driving the connecting column 310 to rotate, so that the connecting column 310 made of the grinding rod material can rotate while sliding grinding, thereby improving the grinding effect and ensuring the consistency and high quality of the grinding effect.

[0051] like Figure 4 As shown, the grinding assembly of this embodiment also includes a limit block 36 on the lower surface of the third guide rail 32, and the lower surface of the limit block 36 is rotatably connected to a rotating column 37 made of sponge material, which can adhere and clean the metal powder generated by grinding.

[0052] Specifically, in the grinding assembly, another limit block 36 on the lower surface of the third guide rail 32 is rotatably connected to a rotating column 37 made of sponge material. During the grinding process, when the connecting column 310 and the grinding rod have completed grinding the end faces of the two components, the limit block 36 is started to slide along the third guide rail 32. At this time, the rotating column 37 can effectively adhere to and clean up the metal powder generated by grinding. These metal powders are metal dusts adhered to the end faces of the two components, thereby avoiding the pollution of the working environment by metal powders, improving the safety and cleanliness of the grinding operation, and ensuring the subsequent welding quality and the cleanliness of the working environment.

[0053] Embodiment 2: Figures 1 to 8 As shown, compared with Example 1, another embodiment of the present invention is: the dissolving component includes a dial plate 4 fixedly connected to one side of the limit block 36, a fixed box 41 is provided on the upper surface of one limit frame 24, a fixed cavity 42 is opened inside the fixed box 41, a connecting pipe 48 is fixedly connected to the lower surface of the fixed box 41, a section of the connecting pipe 48 is fixedly connected to a cross plate 49, a surface of the cross plate 49 is opened with a plurality of spray holes 410, and an ethanol solution is stored in the fixed cavity 42.

[0054] Specifically, when the limit block 36 moves, the paddle 4 fixed to one side thereof moves accordingly, triggering the dissolving component to work. At the same time, the fixed cavity 42 in the fixed box 41 stores ethanol solution, and the ethanol solution flows into the transverse plate 49 through the connecting pipe 48. The plurality of spray holes 410 opened on the surface of the transverse plate 49 are responsible for spraying the ethanol solution evenly to the area to be processed, thereby achieving precise spraying of the ethanol solution. The movement of the paddle 4 is linked with the polishing component to improve work efficiency. The spraying of ethanol solution helps to dissolve and clean stains or residues on the surface of the workpiece, provides good surface conditions for subsequent processing, and ensures processing quality and efficiency.

[0055] like Figure 5 and Figure 6As shown, in this embodiment, a positioning shaft 45 is fixedly connected to one side of the fixed box 41, and a torsion spring 46 is sleeved on the circumferential surface of the positioning shaft 45. A paddle 43 is fixedly connected to the circumferential surface of the torsion spring 46. The paddle plate 4 can paddle the paddle 43, and a sealing disk 44 is fixedly connected to one end of the paddle 43. A fixing hole 47 is provided at the bottom of the fixed box 41, and the sealing disk 44 is used to seal the fixing hole 47. The paddle plate 4 paddles the paddle 43 as the limit block 36 moves. After the paddle 43 is paddled, the paddle 43 rotates a certain angle to release the seal of the fixing hole 47. At this time, the pressure pump built into the fixed box 41 will pressurize the ethanol solution in the fixed box 41 into the connecting pipe 48, thereby spraying it out from a plurality of spray holes 410 on one side of the horizontal plate 49, so that the oil stains on the ends of the parts can be dissolved while the connecting column 310 is being polished.

[0056] Specifically, a torsion spring 46 and a paddle 43 are installed on the positioning shaft 45 on one side of the fixed box 41, and one end of the paddle 43 is connected to a sealing disk 44, which fits tightly on the fixing hole 47 of the fixed box 41, thereby ensuring the airtight storage of the ethanol solution. When the limit block 36 drives the paddle plate 4 to move, the paddle plate 4 will accurately paddle the paddle 43, so that the paddle 43 rotates a certain angle around the positioning shaft 45, thereby releasing the sealing of the sealing disk 44 on the fixing hole 47. At this time, the built-in pressure pump of the fixed box 41 is immediately started, and the ethanol solution is pressurized and transported to the horizontal plate 49 through the connecting pipe 48, and finally sprayed out evenly from the multiple spray holes 410 on the surface of the horizontal plate 49.

[0057] The precise spraying of the ethanol solution is achieved, and it is ensured that during the grinding process, the ethanol solution can simultaneously act on the ends of the parts, effectively dissolve and remove oil stains, and provide a cleaner working surface for the grinding operation. At the same time, the elastic restoring force of the torsion spring 46 ensures that the paddle 43 can automatically reset after the paddle plate 4 leaves, and the sealing disk 44 reseals the fixing hole 47, avoiding the waste of ethanol solution and environmental pollution.

[0058] like Figure 4 As shown, the rotating column 37 made of sponge material in this embodiment can clean the metal dust adhering to the end of the component and absorb the dissolved oil stains during the movement of the limit block 36.

[0059] Specifically, the rotating column 37 made of sponge material rotates on the end face of the component as the limit block 36 moves, which can not only effectively adhere to and clean up the metal dust generated during the grinding process, but also absorb the dissolved oil stains, which not only ensures the cleanliness of the surface of the component, but also avoids the influence of metal dust and oil stains on subsequent processing, improves the processing quality and efficiency, and also maintains a good working environment.

[0060] like Figure 7As shown, a scraping assembly is provided on one side of the side panel 2 of the present embodiment, and the scraping assembly includes a fixed guide rail 5 fixedly connected to one side of the side panel 2, a fixed groove 51 is provided on one side of the fixed guide rail 5, two fixed plates 52 are slidably provided in the fixed groove 51, and arc-shaped clamping blocks 53 are fixedly connected on the sides of the two fixed plates 52 close to each other, and the two arc-shaped clamping blocks 53 can clean the rotating column 37 of the sponge material, and scrape off the ethanol and oil mixture adsorbed on the rotating column 37 of the sponge material.

[0061] Specifically, the scraping component positions two arc-shaped clamping blocks 53 on both sides of the rotating column 37 made of sponge material through the fixed guide rail 5 and the sliding fixed plate 52, and drives the arc-shaped clamping blocks 53 to slide up and down along the fixed guide rail 5, so as to effectively scrape off the ethanol and oil mixture adsorbed on the rotating column 37, thereby ensuring the continuous cleaning of the rotating column 37 and avoiding the influence of the subsequent cleaning effect after the sponge is filled.

[0062] like Figure 3 As shown, in this embodiment, a cleaning plate 6 is fixedly connected to the inner upper surface of each limiting frame 24, and the cleaning plate 6 can clean the surface of the parts.

[0063] Specifically, by fixing the cleaning plate 6 on the upper surface of each limiting frame 24, the cleaning plate 6 can clean the upper surface of the parts when the parts are placed into the moving frame, thereby preventing the dirt attached to the surface from affecting the welding.

[0064] Working principle: first, place the two parts to be welded on the bottom welding box 11, and drive the limit frame 24 through the driving assembly to position and clamp the parts, specifically by starting the motor 22. After the motor 22 is started, its output end drives the rotating shaft 23 to rotate, and the limit frame 24 is connected to the rotating shaft 23 through a rotating connection, and is limited by two auxiliary rods 25. Therefore, the limit frame 24 can slide along the rotating shaft 23 as the rotating shaft 23 rotates, and the two limit frames 24 gradually approach to achieve the abutment and clamping of the two parts. The auxiliary rod 25 fixed on one side of the limit frame 24 passes through the side plate 2, which plays a supporting and guiding role, ensuring the stability and accuracy of the limit frame 24 during the swinging process, realizing the abutment and limiting of the two parts, and ensuring the stability of the welding process;

[0065] A grinding assembly is also provided. Before welding, the fourth guide rail 33 slides on the lower surface of the second guide rail 31, so that the grinding assembly can flexibly adjust its position. Two limit blocks 36 are slidably connected on the lower surface of the fourth guide rail 33. One of the limit blocks 36 is connected to a connecting column 310 by a rotational connection. The lower end of the connecting column 310 is a grinding rod. When the end faces of two parts need to be polished, the positions of the fourth guide rail 33 and the limit blocks 36 are adjusted so that the grinding rod passes through the end faces between the two parts, and the end faces of the two parts that are about to abut are polished, which not only improves the grinding accuracy and efficiency, but also enhances the flexibility and adaptability of the grinding assembly.

[0066] In addition, the dissolving component on the limit frame 24 will be triggered during the grinding process. A torsion spring 46 and a paddle 43 are installed on the positioning shaft 45 on one side of the fixed box 41. One end of the paddle 43 is connected to a sealing disk 44. The sealing disk 44 fits tightly on the fixing hole 47 of the fixed box 41 to ensure the airtight storage of the ethanol solution. When the limit block 36 drives the paddle plate 4 to move, the paddle plate 4 will accurately paddle the paddle 43 to rotate the paddle 43 around the positioning shaft 45 by a certain angle, thereby releasing the seal of the sealing disk 44 on the fixing hole 47. At this time, the built-in pressure pump of the fixed box 41 is immediately started, and the ethanol solution is pressurized and transported to the horizontal plate 49 through the connecting pipe 48, and finally sprayed out evenly from the multiple spray holes 410 on the surface of the horizontal plate 49.

[0067] The ethanol solution is sprayed accurately, and it is ensured that during the grinding process, the ethanol solution can act on the ends of the parts synchronously, effectively dissolving and removing oil stains, and providing a cleaner working surface for the grinding operation. At the same time, the elastic restoring force of the torsion spring 46 ensures that the paddle 43 can automatically reset after the paddle 4 leaves, and the sealing disk 44 reseals the fixing hole 47, thereby avoiding the waste of the ethanol solution and environmental pollution.

[0068] This component can effectively dissolve the oil stains attached to the ends of parts, further improving the welding quality and avoiding the negative impact of oil stains on welding results;

[0069] At the same time, the rotating column 37 made of sponge material rotates on the end surface of the component as the limit block 36 moves, which can not only effectively adhere to and clean the metal dust generated during the grinding process, but also absorb the dissolved oil stains, which not only ensures the cleanliness of the surface of the component, but also avoids the influence of metal dust and oil stains on subsequent processing, improves the processing quality and efficiency, and also maintains a good working environment;

[0070] Finally, under the coordinated action of the second guide rail 31, the third guide rail 32 and the sliding block 34, the welding head 35 accurately slides along the preset path to the abutment point of the parts to perform the welding operation. While the welding head 35 is working, the bottom welding box 11 performs welding work synchronously with it.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary welding device for automobile parts, comprising a workbench (1), a bottom welding box (11) being fixedly connected to the upper surface of the workbench (1), two side plates (2) being fixedly connected to the upper surface of the workbench (1), a driving assembly being provided on one side of each side plate (2), a limiting frame (24) being provided on the side where the two side plates (2) are close to each other, the limiting frame (24) being driven by the driving assembly, and the upper surfaces of the two side plates (2) being slidably provided with the same welding head (35), characterized in that: The upper surfaces of the two side plates (2) are both fixedly connected with a first guide rail (3), the two first guide rails (3) are slidably connected with the same second guide rail (31), the lower surface of the second guide rail (31) is slidably connected with a third guide rail (32), the lower surface of the third guide rail (32) is slidably connected with a sliding block (34), the lower surface of the sliding block (34) is fixedly connected with a welding head (35), and the welding head (35) is used for welding the abutment of the upper end surfaces of two components; A grinding component is also slidably arranged on the lower surface of the second guide rail (31), and the grinding component is used to grind the ends of the two components. During the operation of the grinding component, a dissolving component on the upper surface of one of the limit frames (24) is triggered, and the dissolving component is used to dissolve oil stains attached to the ends of the two components.

2. The auxiliary welding device for automobile parts according to claim 1, characterized in that: The driving assembly comprises a support plate (21) fixedly connected to one side of the side plate (2); a motor (22) is fixedly connected to the upper surface of the support plate (21); a rotating shaft (23) is fixedly connected to the output end of the motor (22); the rotating shaft (23) is a reciprocating screw; a limiting frame (24) is slidably connected to the circumferential surface of the rotating shaft (23); two auxiliary rods (25) are fixedly connected to one side of the limiting frame (24); and the auxiliary rods (25) penetrate the side plate (2).

3. The auxiliary welding device for automobile parts according to claim 1, characterized in that: The grinding assembly comprises a fourth guide rail (33) slidably arranged on the lower surface of the second guide rail (31); the lower surface of the fourth guide rail (33) is slidably connected to two limit blocks (36); the lower surface of one of the limit blocks (36) is rotatably connected to a connecting column (310); the connecting column (310) is a grinding rod capable of grinding the end surfaces of two components.

4. The auxiliary welding device for automobile parts according to claim 3, characterized in that: The grinding assembly also includes a gear (38) fixedly connected to the circumferential surface of the connecting column (310), a rack plate (39) is fixedly connected to the upper surface of one of the limit frames (24), and the gear (38) can rotate along the rack plate (39).

5. The auxiliary welding device for automobile parts according to claim 3, characterized in that: The grinding assembly also includes a limit block (36) on the lower surface of the third guide rail (32), and the lower surface of the limit block (36) is rotatably connected to a rotating column (37) made of sponge material, which can adhere and clean metal powder generated by grinding.

6. The auxiliary welding device for automobile parts according to claim 3, characterized in that: The dissolving component comprises a dial plate (4) fixedly connected to one side of a limit block (36), wherein a fixed box (41) is provided on the upper surface of one of the limit frames (24), a fixed cavity (42) is provided inside the fixed box (41), a connecting pipe (48) is fixedly connected to the lower surface of the fixed box (41), one end of the connecting pipe (48) is fixedly connected to a transverse plate (49), a surface of the transverse plate (49) is provided with a plurality of spray holes (410), and an ethanol solution is stored in the fixed cavity (42).

7. The auxiliary welding device for automobile parts according to claim 6, characterized in that: A positioning shaft (45) is fixedly connected to one side of the fixed box (41); a torsion spring (46) is sleeved on the circumferential surface of the positioning shaft (45); a paddle (43) is fixedly connected to the circumferential surface of the torsion spring (46); the paddle plate (4) is capable of paddle-moving the paddle (43); a sealing disk (44) is fixedly connected to one end of the paddle (43); a fixing hole (47) is provided at the bottom of the fixed box (41); the sealing disk (44) is used for sealing the fixing hole (47); the paddle plate (4) is moved along with the limiting The movement of the positioning block (36) moves the paddle (43). After the paddle (43) is moved, the paddle (43) rotates a certain angle to release the seal of the fixing hole (47). At this time, the pressure pump built into the fixing box (41) pressurizes the ethanol solution in the fixing box (41) into the connecting pipe (48), so that the ethanol solution is sprayed out from the plurality of spray holes (410) on one side of the horizontal plate (49), thereby being able to dissolve the oil stains on the ends of the parts while the connecting column (310) is being polished.

8. The auxiliary welding device for automobile parts according to claim 5, characterized in that: The rotating column (37) made of sponge material can clean the metal dust adhering to the end of the component and absorb the dissolved oil dirt during the movement of the limit block (36).

9. The auxiliary welding device for automobile parts according to claim 1, characterized in that: A scraping assembly is provided on one side of the side plate (2), and the scraping assembly includes a fixed guide rail (5) fixedly connected to one side of the side plate (2), a fixed groove (51) is provided on one side of the fixed guide rail (5), two fixed plates (52) are slidably arranged in the fixed groove (51), and arc-shaped clamping blocks (53) are fixedly connected to the sides of the two fixed plates (52) close to each other, and the two arc-shaped clamping blocks (53) can clean the rotating column (37) made of sponge material and scrape off the ethanol and oil mixture adsorbed on the rotating column (37) made of sponge material.

10. The automobile parts auxiliary welding device according to claim 1, characterized in that: A cleaning plate (6) is fixedly connected to the inner upper surface of each limiting frame (24), and the cleaning plate (6) can clean the surface of the parts.

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