Automobile part welding device with auxiliary function and welding method thereof

Abstract

The invention discloses an automobile part welding device with an auxiliary function and a welding method of the automobile part welding device, relates to the technical field of automobile part welding devices, and aims to solve the problems that a welding gun of an existing automobile part welding device is prone to accumulation of impurities such as splashes, oxides, grease and dust in the using process, and the welding efficiency is high. The problems that impurities possibly enter a molten pool during welding, air holes and inclusions are generated in a welding seam, the strength and the sealing performance of the welding seam are affected, and pollution of a welding gun nozzle, a contact tube and other components can affect the stability of an electric arc are solved. A welding robot is fixedly mounted above the welding robot mounting seat, a welding mechanism is mounted at the upper end of the welding robot, a dust hood is arranged at the outer end of the welding mechanism, a welding gun cleaning mechanism is mounted on the rear side in the dust hood, and a grinding mechanism is fixedly mounted on one side in the dust hood.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component welding devices, in particular to an automobile component welding device with auxiliary functions and a welding method thereof. Background Art

[0002] The automobile parts welding device is mainly used to weld several first automobile parts to the second automobile parts, and is an indispensable part of the automobile manufacturing process. It ensures a firm connection between automobile parts, thereby improving the overall performance and safety of the automobile. The automobile parts welding device is usually composed of a welding machine, a welding tool and a control device. Among them, the welding tool is the core part of the device, which includes structures such as a base, a lifting platform, and a translation platform, as well as power devices such as cylinders and servo motors used to drive the movement of these structures. In addition, the welding tool is also equipped with accessories such as clamps and supports to ensure accurate positioning and stable support of automobile parts during the welding process. The working principle of the automobile parts welding device is mainly based on welding technology and automatic control technology. During the welding process, the welder generates a heat source such as a high-temperature arc or laser to melt and connect the contact surfaces of automobile parts together. At the same time, the control device accurately controls the welding process, including parameters such as welding time, welding temperature, and welding pressure, to ensure welding quality and efficiency.

[0003] The Chinese patent publication number is CN219151953U, which discloses a fixed welding device for automobile parts production with a filtering function, including a support table, a support plate, a bracket and a welding assembly. The top of the support table is symmetrically connected to the support plate, and the upper left side of the left support plate is connected to the bracket. The bracket is provided with a welding assembly for welding automobile parts, and also includes a filtering mechanism. The rear side of the top of the support table is provided with a filtering mechanism for filtering harmful gases generated by welding. The utility model generates harmful gases when welding automobile parts. The filtering mechanism can filter the harmful gases before discharging them to avoid harmful gases polluting the environment.

[0004] The above-mentioned prior art solutions have the following defects: the welding gun of the existing automobile parts welding device is prone to accumulate impurities such as spatter, oxides, grease, dust, etc. during use. These impurities may enter the molten pool during welding, resulting in pores and inclusions in the weld, thereby affecting the strength and sealing of the weld. The contamination of components such as the welding gun nozzle and the conductive nozzle will affect the stability of the arc. Therefore, we propose an automobile parts welding device with auxiliary functions and a welding method thereof to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide an automobile parts welding device with auxiliary functions and a welding method thereof, so as to solve the problem that the welding gun of the existing automobile parts welding device mentioned in the above background technology is prone to accumulate impurities such as spatter, oxides, grease, dust, etc. during use, and these impurities may enter the molten pool during welding, resulting in pores and inclusions in the weld, thereby affecting the strength and sealing of the weld, and the contamination of components such as the welding gun nozzle and the conductive nozzle will affect the arc stability.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile parts welding device with auxiliary functions, comprising a positioning seat, a welding robot mounting seat is slidably arranged above the positioning seat, a welding robot is fixedly installed above the welding robot mounting seat, a welding mechanism is installed at the upper end of the welding robot, a dust hood is arranged at the outer end of the welding mechanism, a flame welding gun, a laser welding gun or a spot welding gun is installed on one side of the dust hood, a welding gun cleaning mechanism is installed on the rear side of the dust hood, and a grinding mechanism is fixedly installed on one side of the dust hood.

[0007] Preferably, the front and rear sides of the positioning seat are symmetrically fixed with welding robot mounting seat driving screws, the welding robot mounting seat driving screws are transmission-connected to the welding robot mounting seat, and a welding machine is arranged on one side of the welding robot mounting seat driving screw.

[0008] Preferably, a fixed seat is installed at the lower end of the welding robot, a first support arm is rotatably installed above the fixed seat, a second support arm is rotatably installed on one side above the first support arm, a first servo motor is fixedly installed at the front end of the fixed seat, the first servo motor is transmission-connected to the first support arm, a second servo motor is fixedly installed on the front side of the upper end of the first support arm, and the output end of the second servo motor is transmission-connected to the second support arm.

[0009] Preferably, a positioning seat is fixedly installed below one end of the second support arm, a third servo motor is fixedly installed inside the positioning seat, a rotating seat is rotatably installed below the positioning seat, the output end of the third servo motor is transmission connected to the rotating seat, a connecting seat is provided below the rotating seat, a fourth servo motor is fixedly installed at the front end of the rotating seat, and the output end of the fourth servo motor is transmission connected to the connecting seat.

[0010] Preferably, a vacuum pump is provided on one side of the connecting seat, and a filter box is provided on the other side of the connecting seat. An air suction pipe is sealedly connected to the upper part of the middle position of the dust hood, and the other end of the air suction pipe is sealedly connected to the filter box. An air supply pipe is sealedly connected between the upper end of the filter box and the air inlet end of the vacuum pump.

[0011] Preferably, a grinding mechanism shell is provided at the outer end of the grinding mechanism, and the grinding mechanism shell is fixedly connected to the dust hood, and an electric telescopic cylinder of the grinding mechanism is symmetrically fixedly installed on the upper end of the inner wall of the grinding mechanism shell, and a grinding mechanism driving seat is fixedly installed below the electric telescopic cylinder of the grinding mechanism, and a grinding motor is fixedly installed at the middle position below the grinding mechanism driving seat, and a grinding disc is installed on the output end transmission of the grinding motor.

[0012] Preferably, a welding gun positioning plate is fixedly provided on the outside at the middle position of the flame welding gun, laser welding gun or spot welding gun, the welding gun positioning plate is located above the dust hood, and the lower end of the flame welding gun, laser welding gun or spot welding gun extends to the inside of the dust hood, and a fixing clamp is symmetrically installed on one side of the upper end of the dust hood, and the fixing clamp of the fixing clamp is in contact with the upper surface of the welding gun positioning plate.

[0013] Preferably, a welding gun cleaning mechanism driving screw is installed on the rear side of the flame welding gun, laser welding gun or spot welding gun, and a first electric telescopic cylinder of the welding gun cleaning mechanism is transmission-installed below the welding gun cleaning mechanism driving screw, and a first mounting plate of the welding gun cleaning mechanism is fixedly installed below the first electric telescopic cylinder of the welding gun cleaning mechanism, and a first servo motor of the welding gun cleaning mechanism and a second mounting plate of the welding gun cleaning mechanism are fixedly installed on one side of the first mounting plate of the welding gun cleaning mechanism, the first servo motor of the welding gun cleaning mechanism is located on one side of the second mounting plate of the welding gun cleaning mechanism, and the output end of the first servo motor of the welding gun cleaning mechanism is transmission-connected with the center position of the second mounting plate of the welding gun cleaning mechanism, and the second electric telescopic cylinder of the welding gun cleaning mechanism is symmetrically installed on the upper end and the lower end of one side of the second mounting plate of the welding gun cleaning mechanism, and a third mounting plate of the welding gun cleaning mechanism is fixedly installed on one side of the second electric telescopic cylinder of the welding gun cleaning mechanism.

[0014] Preferably, a rotating disk is provided on the front side of the third mounting plate of the welding gun cleaning mechanism, and a rotating disk limit seat is fixedly installed at the upper and lower ends and the middle position of one side of the third mounting plate of the welding gun cleaning mechanism, the rotating disk limit seat is slidably connected with the rotating disk, an anti-slip wheel is provided between adjacent rotating disk limit seats, and a second servo motor of the welding gun cleaning mechanism is fixedly installed below the upper anti-slip wheel, and a welding gun cleaning mechanism driving gear is transmission-installed on the output end of the second servo motor of the welding gun cleaning mechanism, a driven external gear is provided at the outer end of the rotating disk, and the driven external gear is meshed with the driving gear of the welding gun cleaning mechanism, a positioning brush seat and a movable brush seat are provided inside the rotating disk, the positioning brush seat is located below the movable brush seat, and a cleaning brush is fitted inside the positioning brush seat and the movable brush seat, the positioning brush seat is fixedly connected to the rotating disk, and the third servo motor of the welding gun cleaning mechanism is passed between the movable brush seat and the rotating disk.

[0015] A welding method of an automobile component welding device with auxiliary function, comprising the following steps: Step 1: Select a flame welding gun, laser welding gun or spot welding gun according to the type of automotive parts to be welded, place the selected welding gun in the dust hood, place the welding gun positioning plate above the dust hood, and lock the welding gun positioning plate by rotating the fixing fixture; Step 2: according to the position of the automobile parts to be welded, the welding robot mounting seat drives the screw rod, the welding robot mounting seat drives the screw rod to drive the welding robot mounting seat to slide above the positioning seat, and then drives the first servo motor, the second servo motor, the third servo motor and the fourth servo motor. The first servo motor drives the first support arm to rotate on the rotating shaft between the first support arm and the fixed seat, the second servo motor drives the second support arm to rotate on the rotating shaft between the first support arm, the third servo motor drives the rotating seat to rotate in the positioning seat, and the fourth servo motor drives the connecting seat to rotate on the rotating shaft between the rotating seat, so that the flame welding gun, laser welding gun or spot welding gun is aligned with the welding position; Step 3: Start the welding machine to perform welding operation and adjust the welding robot mounting seat drive screw, the first servo motor, the second servo motor, the third servo motor and the fourth servo motor according to the arc of welding, so that the flame welding gun, the laser welding gun or the spot welding gun is adjusted according to the movement of the welding position until the welding operation is completed; Step 4: Turn on the vacuum pump during welding. When the vacuum pump is running, negative pressure is generated. The negative pressure causes air and welding slag to be sucked into the suction pipe from the dust hood. The air and welding slag enter the filter box through the suction pipe. After the welding slag and dust are filtered by the filter box, the air enters the vacuum pump through the air pipe and is discharged; Step 5: After the welding is completed and cooled, use the grinding mechanism to perform the grinding operation. Extend the electric telescopic cylinder of the grinding mechanism to push the grinding mechanism drive seat downward, so that the grinding sheet moves downward. When the grinding sheet is aligned with the position to be polished, start the grinding motor. The grinding motor drives the grinding sheet to rotate, and cooperates with the rotation of the first servo motor, the second servo motor, the third servo motor and the fourth servo motor to make the grinding sheet contact with the grinding area, thereby realizing the grinding of the welding position.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When cleaning the welding gun of the present invention, the welding gun cleaning mechanism is adjusted, and the welding gun cleaning mechanism drives the first electric telescopic cylinder of the welding gun cleaning mechanism to move left and right, and then the first electric telescopic cylinder of the welding gun cleaning mechanism is extended, thereby prompting the first mounting plate of the welding gun cleaning mechanism to move up and down, and the second mounting plate of the welding gun cleaning mechanism is driven to rotate through the output end of the first servo motor of the welding gun cleaning mechanism, thereby changing the inclination angle of the second mounting plate of the welding gun cleaning mechanism, and further driving the rotating disk to change the inclination angle, and then extending the second electric telescopic cylinder of the welding gun cleaning mechanism to make the rotating disk close to the flame welding gun, laser welding gun or spot welding gun, and passing the flame welding gun, laser welding gun or spot welding gun through the reserved groove of the rotating disk and placing it in the positioning brush seat, and then extending the third servo motor of the welding gun cleaning mechanism to prompt the positioning brush seat and the third servo motor of the welding gun cleaning mechanism to fit together, and at this time, starting the second servo motor of the welding gun cleaning mechanism to reciprocate forward and reverse, and the welding gun cleaning mechanism The output end of the second servo motor drives the active gear of the welding gun cleaning mechanism to rotate, and the active gear of the welding gun cleaning mechanism is meshed and connected with the driven external gear, thereby driving the rotating disk to rotate, and the rotation drives the rotating disk to drive the internal positioning brush seat and the moving brush seat to rotate synchronously, prompting the cleaning brush to clean the impurities on the surface of the flame welding gun, laser welding gun or spot welding gun. Regular cleaning of the welding gun can reduce the wear of components and extend the service life of the welding gun. Cleaning the welding gun can ensure good conductivity and gas protection effect, make the arc more stable, thereby improving the welding quality, and solves the problem that some automotive parts welding devices are prone to accumulate spatter, oxides, grease, dust and other impurities during use. These impurities may enter the molten pool during welding, resulting in pores and inclusions in the weld, thereby affecting the strength and sealing of the weld, and the pollution of components such as the welding gun nozzle and conductive nozzle will affect the arc stability.

[0017] After the welding of the present invention is completed and cooled, a grinding mechanism is used to perform a grinding operation. The electric telescopic cylinder of the grinding mechanism is extended to push the grinding mechanism driving seat downward, thereby allowing the grinding plate to move downward. When the grinding plate is aligned with the position to be polished, the grinding motor is started, and the grinding motor drives the grinding plate to rotate. The rotation of the first servo motor, the second servo motor, the third servo motor and the fourth servo motor is coordinated to allow the grinding plate to contact the grinding area, thereby achieving grinding of the welding position, improving the quality of the product after welding, and reducing the equipment cost of purchasing the grinding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A diagram showing the connection relationship between the flame welding gun and the welding mechanism in the present invention; Figure 3 A diagram showing the connection relationship between the laser welding gun and the welding mechanism in the present invention; Figure 4 A diagram showing the connection relationship between the spot welding gun and the welding mechanism of the present invention; Figure 5 It is a structural schematic diagram of the welding gun cleaning mechanism in the present invention; In the figure: 1. Positioning seat; 2. Welding robot mounting seat; 3. Welding robot mounting seat driving screw; 4. Welding machine; 5. Welding robot; 6. Fixed seat; 7. First support arm; 8. Second support arm; 9. First servo motor; 10. Second servo motor; 11. Welding mechanism; 12. Flame welding gun; 13. Grinding mechanism; 14. Positioning seat; 15. Connecting seat; 16. Third servo motor; 17. Rotating seat; 18. Fourth servo motor; 19. Vacuum pump; 20. Filter box; 21. Suction pipe; 22. Air supply pipe; 23. Dust hood; 24. Grinding mechanism housing; 25. Grinding mechanism electric telescopic cylinder; 26. Grinding mechanism driving seat; 27. Grinding motor; 28. Grinding sheet; 29. ​​Welding gun cleaning Mechanism; 30. Fixing fixture; 31. Welding gun positioning plate; 32. Laser welding gun; 33. Spot welding gun; 34. Driving screw rod of welding gun cleaning mechanism; 35. First electric telescopic cylinder of welding gun cleaning mechanism; 36. First mounting plate of welding gun cleaning mechanism; 37. First servo motor of welding gun cleaning mechanism; 38. Second mounting plate of welding gun cleaning mechanism; 39. Second electric telescopic cylinder of welding gun cleaning mechanism; 40. Third mounting plate of welding gun cleaning mechanism; 41. Rotating disk limit seat; 42. Anti-skid wheel; 43. Active gear of welding gun cleaning mechanism; 44. Second servo motor of welding gun cleaning mechanism; 45. Rotating disk; 46. Driven external gear; 47. Positioning brush seat; 48. Moving brush seat; 49. Cleaning brush; 50. Third servo motor of welding gun cleaning mechanism. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-5 An embodiment of the present invention is as follows: a welding device for automobile parts with auxiliary functions, comprising a positioning seat 1, a welding robot mounting seat 2 is slidably arranged above the positioning seat 1, a welding robot 5 is fixedly installed above the welding robot mounting seat 2, a welding mechanism 11 is installed at the upper end of the welding robot 5, a dust hood 23 is arranged at the outer end of the welding mechanism 11, a flame welding gun 12, a laser welding gun 32 or a spot welding gun 33 is installed on one side inside the dust hood 23, a welding gun cleaning mechanism 29 is installed on the rear side inside the dust hood 23, and a grinding mechanism 13 is fixedly installed on one side inside the dust hood 23.

[0021] When cleaning the welding gun, adjust the welding gun cleaning mechanism 34, the welding gun cleaning mechanism 34 drives the first electric telescopic cylinder 35 of the welding gun cleaning mechanism to move left and right, and then extend the first electric telescopic cylinder 35 of the welding gun cleaning mechanism, thereby prompting the first mounting plate 36 of the welding gun cleaning mechanism to move up and down, and the second mounting plate 38 of the welding gun cleaning mechanism is driven to rotate through the output end of the first servo motor 37 of the welding gun cleaning mechanism, thereby changing the inclination angle of the second mounting plate 38 of the welding gun cleaning mechanism, and further driving the rotating disk 45 to change the inclination angle, and then extend the second electric telescopic cylinder 39 of the welding gun cleaning mechanism to make the rotating disk 45 close to the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33, pass the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33 through the reserved groove of the rotating disk 45, and place it in the positioning brush seat 47, and then extend the welding gun cleaning mechanism The third servo motor 50 causes the positioning brush holder 47 and the third servo motor 50 of the welding gun cleaning mechanism to fit together. At this time, the second servo motor 44 of the welding gun cleaning mechanism is started to reciprocate forward and reverse. The output end of the second servo motor 44 of the welding gun cleaning mechanism drives the active gear 43 of the welding gun cleaning mechanism to rotate. The active gear 43 of the welding gun cleaning mechanism is meshed and connected with the driven external gear 46, thereby driving the rotating disk 45 to rotate. The rotation drives the rotating disk 45 to drive the internal positioning brush holder 47 and the moving brush holder 48 to rotate synchronously, so as to cause the cleaning brush 49 to clean the impurities on the surface of the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33. Regular cleaning of the welding gun can reduce the wear of the components and extend the service life of the welding gun. Cleaning the welding gun can ensure good conductivity and gas protection effect, make the arc more stable, and thus improve the welding quality.

[0022] See also Figure 1 The front and rear sides of the positioning seat 1 are symmetrically fixed with welding robot mounting seat driving screws 3, which are transmission connected to the welding robot mounting seat 2, and a welding machine 4 is arranged on one side of the welding robot mounting seat driving screw 3. A fixed seat 6 is installed at the lower end of the welding robot 5, and a first support arm 7 is rotatably installed above the fixed seat 6. A second support arm 8 is rotatably installed on one side above the first support arm 7. A first servo motor 9 is fixedly installed at the front end of the fixed seat 6, which is transmission connected to the first support arm 7. A second servo motor 10 is fixedly installed on the front side of the upper end of the first support arm 7, and the output end of the second servo motor 10 is transmission connected to the second support arm 8.

[0023] See also Figure 1-4 A positioning seat 14 is fixedly installed below one end of the second support arm 8, a third servo motor 16 is fixedly installed inside the positioning seat 14, a rotating seat 17 is rotatably installed below the positioning seat 14, the output end of the third servo motor 16 is transmission connected to the rotating seat 17, a connecting seat 15 is provided below the rotating seat 17, a fourth servo motor 18 is fixedly installed at the front end of the rotating seat 17, and the output end of the fourth servo motor 18 is transmission connected to the connecting seat 15.

[0024] See also Figure 1-4 A vacuum pump 19 is provided on one side of the connecting seat 15, and a filter box 20 is provided on the other side of the connecting seat 15. An air suction pipe 21 is sealedly connected to the upper part of the middle position of the dust cover 23, and the other end of the air suction pipe 21 is sealedly connected to the filter box 20. An air supply pipe 22 is sealedly connected between the upper end of the filter box 20 and the air inlet end of the vacuum pump 19.

[0025] See also Figure 1-4 A grinding mechanism shell 24 is provided at the outer end of the grinding mechanism 13, and the grinding mechanism shell 24 is fixedly connected to the dust hood 23. A grinding mechanism electric telescopic cylinder 25 is symmetrically fixedly installed on the upper end of the inner wall of the grinding mechanism shell 24, and a grinding mechanism driving seat 26 is fixedly installed below the grinding mechanism electric telescopic cylinder 25. A grinding motor 27 is fixedly installed at the middle position below the grinding mechanism driving seat 26, and a grinding disc 28 is installed on the output end transmission of the grinding motor 27.

[0026] See also Figure 1-4 A welding gun positioning plate 31 is fixedly arranged on the outside at the middle position of the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33, the welding gun positioning plate 31 is located above the dust hood 23, and the lower end of the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33 extends to the inside of the dust hood 23, and a fixing clamp 30 is symmetrically installed on one side of the upper end of the dust hood 23, and the fixing clamp 30 is in contact with the upper surface of the welding gun positioning plate 31.

[0027] See also Figure 5A welding gun cleaning mechanism driving screw rod 34 is installed at the rear side of the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33, and a welding gun cleaning mechanism first electric telescopic cylinder 35 is installed below the welding gun cleaning mechanism driving screw rod 34, and a welding gun cleaning mechanism first mounting plate 36 is fixedly installed below the first electric telescopic cylinder 35 of the welding gun cleaning mechanism, and a welding gun cleaning mechanism first servo motor 37 and a welding gun cleaning mechanism second mounting plate 38 are fixedly installed on one side of the first mounting plate 36 of the welding gun cleaning mechanism, and the first servo motor 37 of the welding gun cleaning mechanism is located on one side of the second mounting plate 38 of the welding gun cleaning mechanism, and the output end of the first servo motor 37 of the welding gun cleaning mechanism is transmission-connected with the center position of the second mounting plate 38 of the welding gun cleaning mechanism, and a welding gun cleaning mechanism second electric telescopic cylinder 39 is symmetrically installed at the upper end and the lower end of one side of the second mounting plate 38 of the welding gun cleaning mechanism, and a welding gun cleaning mechanism third mounting plate 40 is fixedly installed on one side of the second electric telescopic cylinder 39 ... A rotating disk 45 is provided on the front side of the mounting plate 40, and a rotating disk limiting seat 41 is fixedly installed at the upper and lower ends and the middle position of one side of the third mounting plate 40 of the welding gun cleaning mechanism. The rotating disk limiting seat 41 is slidably connected with the rotating disk 45, and an anti-skid wheel 42 is provided between adjacent rotating disk limiting seats 41. A second servo motor 44 of the welding gun cleaning mechanism is fixedly installed below the upper anti-skid wheel 42, and a welding gun cleaning mechanism driving gear 43 is installed on the output end of the second servo motor 44 of the welding gun cleaning mechanism. A driven external gear 46 is provided at the outer end of the rotating disk 45, and the driven external gear 46 is meshed and connected with the welding gun cleaning mechanism driving gear 43. A positioning brush seat 47 and a moving brush seat 48 are provided inside the rotating disk 45. The positioning brush seat 47 is located below the moving brush seat 48, and a cleaning brush 49 is fitted inside the positioning brush seat 47 and the moving brush seat 48. The positioning brush seat 47 is fixedly connected to the rotating disk 45, and the third servo motor 50 of the welding gun cleaning mechanism passes between the moving brush seat 48 and the rotating disk 45.

[0028] A welding method of an automobile component welding device with auxiliary function, comprising the following steps: Step 1: Select a flame welding gun 12, a laser welding gun 32 or a spot welding gun 33 according to the type of automobile parts to be welded, place the selected welding gun in the dust hood 23, let the welding gun positioning plate 31 be located above the dust hood 23, and lock the welding gun positioning plate 31 by rotating the fixing fixture 30; Step 2: according to the position of the automobile parts to be welded, the welding robot mounting seat drives the screw rod 3, the welding robot mounting seat drives the screw rod 3 to drive the welding robot mounting seat 2 to slide above the positioning seat 1, and then drives the first servo motor 9, the second servo motor 10, the third servo motor 16 and the fourth servo motor 18. The first servo motor 9 drives the first support arm 7 to rotate on the rotating shaft between the fixing seat 6, the second servo motor 10 drives the second support arm 8 to rotate on the rotating shaft between the first support arm 7, the third servo motor 16 drives the rotating seat 17 to rotate in the positioning seat 14, and the fourth servo motor 18 drives the connecting seat 15 to rotate on the rotating shaft between the rotating seat 17, so that the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33 is aligned with the welding position; Step 3: Start the welding machine 4 to perform welding operation and adjust the welding robot mounting seat drive screw 3, the first servo motor 9, the second servo motor 10, the third servo motor 16 and the fourth servo motor 18 according to the arc of welding, so that the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33 are adjusted according to the movement of the welding position until the welding operation is completed; Step 4: Turn on the vacuum pump 19 during welding. When the vacuum pump 19 is running, negative pressure is generated. The negative pressure causes air and welding slag to be sucked into the suction pipe 21 from the dust hood 23. The air and welding slag enter the filter box 20 along the suction pipe 21. After the welding slag and dust are filtered by the filter box 20, the air enters the vacuum pump 19 through the air pipe 22 and is then discharged. Step 5: After the welding is completed and cooled, use the grinding mechanism 13 to perform the grinding operation, extend the grinding mechanism electric telescopic cylinder 25 to push the grinding mechanism drive seat 26 downward, so that the grinding plate 28 moves downward, and when the grinding plate 28 is aligned with the position to be polished, start the grinding motor 27, and the grinding motor 27 drives the grinding plate 28 to rotate, and cooperates with the rotation of the first servo motor 9, the second servo motor 10, the third servo motor 16 and the fourth servo motor 18 to make the grinding plate 28 contact with the grinding area, thereby realizing the grinding of the welding position.

[0029] Working principle: When cleaning the welding gun, adjust the welding gun cleaning mechanism 34, the welding gun cleaning mechanism 34 drives the first electric telescopic cylinder 35 of the welding gun cleaning mechanism to move left and right, and then extend the first electric telescopic cylinder 35 of the welding gun cleaning mechanism, thereby prompting the first mounting plate 36 of the welding gun cleaning mechanism to move up and down, and the second mounting plate 38 of the welding gun cleaning mechanism is driven to rotate through the output end of the first servo motor 37 of the welding gun cleaning mechanism, thereby changing the inclination angle of the second mounting plate 38 of the welding gun cleaning mechanism, and further driving the rotating disk 45 to change the inclination angle, and then extend the second electric telescopic cylinder 39 of the welding gun cleaning mechanism to make the rotating disk 45 close to the flame welding gun 12, laser welding gun 32 or spot welding gun 33, pass the flame welding gun 12, laser welding gun 32 or spot welding gun 33 through the reserved groove of the rotating disk 45, and place it in the positioning brush holder 47, and then extend the welding gun cleaning mechanism. The third servo motor 50 of the mechanism causes the positioning brush holder 47 and the third servo motor 50 of the welding gun cleaning mechanism to fit together. At this time, the second servo motor 44 of the welding gun cleaning mechanism is started to reciprocate forward and reverse. The output end of the second servo motor 44 of the welding gun cleaning mechanism drives the active gear 43 of the welding gun cleaning mechanism to rotate. The active gear 43 of the welding gun cleaning mechanism is meshed and connected with the driven external gear 46, thereby driving the rotating disk 45 to rotate. The rotation drives the rotating disk 45 to drive the internal positioning brush holder 47 and the moving brush holder 48 to rotate synchronously, so as to cause the cleaning brush 49 to clean the impurities on the surface of the flame welding gun 12, the laser welding gun 32 or the spot welding gun 33. Regular cleaning of the welding gun can reduce the wear of components and extend the service life of the welding gun. Cleaning the welding gun can ensure good conductivity and gas protection effect, make the arc more stable, and thus improve the welding quality.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A welding device for automobile parts with auxiliary functions, comprising a positioning seat (1), characterized in that: A welding robot mounting seat (2) is slidably arranged above the positioning seat (1), a welding robot (5) is fixedly installed above the welding robot mounting seat (2), a welding mechanism (11) is installed at the upper end of the welding robot (5), a dust hood (23) is arranged at the outer end of the welding mechanism (11), a flame welding gun (12), a laser welding gun (32) or a spot welding gun (33) is installed on one side of the interior of the dust hood (23), a welding gun cleaning mechanism (29) is installed on the rear side of the interior of the dust hood (23), and a grinding mechanism (13) is fixedly installed on one side of the interior of the dust hood (23).

2. The automobile parts welding device with auxiliary function according to claim 1, characterized in that: A welding robot mounting seat driving screw (3) is symmetrically fixedly mounted on both front and rear sides of the positioning seat (1); the welding robot mounting seat driving screw (3) is transmission-connected to the welding robot mounting seat (2); and a welding machine (4) is arranged on one side of the welding robot mounting seat driving screw (3).

3. The automobile parts welding device with auxiliary function according to claim 2, characterized in that: A fixing seat (6) is installed at the lower end of the welding robot (5); a first support arm (7) is rotatably installed above the fixing seat (6); a second support arm (8) is rotatably installed on one side above the first support arm (7); a first servo motor (9) is fixedly installed at the front end of the fixing seat (6); the first servo motor (9) is transmission-connected to the first support arm (7); a second servo motor (10) is fixedly installed on the front side of the upper end of the first support arm (7); and an output end of the second servo motor (10) is transmission-connected to the second support arm (8).

4. The automobile parts welding device with auxiliary function according to claim 3 is characterized in that: A positioning seat (14) is fixedly mounted below one end of the second support arm (8); a third servo motor (16) is fixedly mounted inside the positioning seat (14); a rotating seat (17) is rotatably mounted below the positioning seat (14); an output end of the third servo motor (16) is transmission-connected to the rotating seat (17); a connecting seat (15) is provided below the rotating seat (17); a fourth servo motor (18) is fixedly mounted at the front end of the rotating seat (17); and an output end of the fourth servo motor (18) is transmission-connected to the connecting seat (15).

5. The automobile parts welding device with auxiliary function according to claim 4, characterized in that: A vacuum pump (19) is disposed on one side of the connection seat (15), a filter box (20) is disposed on the other side of the connection seat (15), an air suction pipe (21) is sealedly connected to the upper portion of the middle portion of the dust cover (23), the other end of the air suction pipe (21) is sealedly connected to the filter box (20), and an air delivery pipe (22) is sealedly connected between the upper end of the filter box (20) and the air inlet end of the vacuum pump (19).

6. The automobile parts welding device with auxiliary function according to claim 5, characterized in that: A grinding mechanism housing (24) is provided at the outer end of the grinding mechanism (13), the grinding mechanism housing (24) being fixedly connected to the dust cover (23), a grinding mechanism electric telescopic cylinder (25) being symmetrically fixedly mounted on the upper end of the inner wall of the grinding mechanism housing (24), a grinding mechanism driving seat (26) being fixedly mounted below the grinding mechanism electric telescopic cylinder (25), a grinding motor (27) being fixedly mounted at a middle position below the grinding mechanism driving seat (26), and a grinding disc (28) being transmission-mounted on the output end of the grinding motor (27).

7. The automobile parts welding device with auxiliary function according to claim 6, characterized in that: A welding gun positioning plate (31) is fixedly arranged outside the middle position of the flame welding gun (12), laser welding gun (32) or spot welding gun (33); the welding gun positioning plate (31) is located above the dust hood (23); and the lower end of the flame welding gun (12), laser welding gun (32) or spot welding gun (33) extends to the inside of the dust hood (23); a fixing fixture (30) is symmetrically mounted on one side of the upper end of the dust hood (23); and a fixing clamp of the fixing fixture (30) is in contact with the upper surface of the welding gun positioning plate (31).

8. The automobile parts welding device with auxiliary function according to claim 7, characterized in that: A welding gun cleaning mechanism driving screw (34) is installed at the rear side of the flame welding gun (12), laser welding gun (32) or spot welding gun (33); a welding gun cleaning mechanism first electric telescopic cylinder (35) is installed under the welding gun cleaning mechanism driving screw (34); a welding gun cleaning mechanism first mounting plate (36) is fixedly installed under the first electric telescopic cylinder (35); a welding gun cleaning mechanism first servo motor (37) and a welding gun cleaning mechanism second mounting plate (36) are fixedly installed on one side of the welding gun cleaning mechanism first mounting plate (36). The welding gun cleaning mechanism comprises a plate (38), a first servo motor (37) of the welding gun cleaning mechanism is located on one side of the second mounting plate (38) of the welding gun cleaning mechanism, an output end of the first servo motor (37) of the welding gun cleaning mechanism is drivingly connected to the center position of the second mounting plate (38) of the welding gun cleaning mechanism, a second electric telescopic cylinder (39) of the welding gun cleaning mechanism is symmetrically mounted at the upper end and the lower end of one side of the second mounting plate (38) of the welding gun cleaning mechanism, and a third mounting plate (40) of the welding gun cleaning mechanism is fixedly mounted on one side of the second electric telescopic cylinder (39) of the welding gun cleaning mechanism.

9. The automobile parts welding device with auxiliary function according to claim 8, characterized in that: A rotating disk (45) is arranged at the front side of the third mounting plate (40) of the welding gun cleaning mechanism, and rotating disk limit seats (41) are fixedly installed at the upper and lower ends and the middle position of one side of the third mounting plate (40) of the welding gun cleaning mechanism, and the rotating disk limit seats (41) are slidably connected to the rotating disk (45), and anti-skid wheels (42) are arranged between adjacent rotating disk limit seats (41), and a second servo motor (44) of the welding gun cleaning mechanism is fixedly installed below the upper anti-skid wheel (42), and a welding gun cleaning mechanism driving gear (43) is installed at the output end of the second servo motor (44) of the welding gun cleaning mechanism. A driven external gear (46) is provided at the outer end of the rotating disk (45), and the driven external gear (46) is meshedly connected with the driving gear (43) of the welding gun cleaning mechanism. A positioning brush seat (47) and a movable brush seat (48) are provided inside the rotating disk (45), and the positioning brush seat (47) is located below the movable brush seat (48). Cleaning brushes (49) are fitted inside the positioning brush seat (47) and the movable brush seat (48). The positioning brush seat (47) is fixedly connected to the rotating disk (45), and a third servo motor (50) of the welding gun cleaning mechanism is connected between the movable brush seat (48) and the rotating disk (45).

10. A welding method for an automobile component welding device with auxiliary function according to claim 9, characterized in that: The following steps are involved: Step 1: Select a flame welding gun (12), a laser welding gun (32) or a spot welding gun (33) according to the type of automobile parts to be welded, place the selected welding gun in the dust hood (23), place the welding gun positioning plate (31) above the dust hood (23), and lock the welding gun positioning plate (31) by rotating the fixing fixture (30); Step 2: according to the position of the automobile parts to be welded, the welding robot mounting seat driving screw rod (3) drives the welding robot mounting seat (2) to slide above the positioning seat (1), and then drives the first servo motor (9), the second servo motor (10), the third servo motor (16) and the fourth servo motor (18). The first servo motor (9) drives the first support arm (7) to rotate on the rotating shaft between the fixed seat (6), the second servo motor (10) drives the second support arm (8) to rotate on the rotating shaft between the first support arm (7), the third servo motor (16) drives the rotating seat (17) to rotate in the positioning seat (14), and the fourth servo motor (18) drives the connecting seat (15) to rotate on the rotating shaft between the rotating seat (17), so that the flame welding gun (12), the laser welding gun (32) or the spot welding gun (33) is aligned with the welding position; Step 3: Start the welding machine (4) to perform welding operation and adjust the welding robot mounting base drive screw (3), the first servo motor (9), the second servo motor (10), the third servo motor (16) and the fourth servo motor (18) according to the arc of welding, so that the flame welding gun (12), the laser welding gun (32) or the spot welding gun (33) are adjusted according to the movement of the welding position until the welding operation is completed; Step 4: during welding, the vacuum pump (19) is turned on. When the vacuum pump (19) is in operation, negative pressure is generated. The negative pressure causes air and welding slag to be sucked into the suction pipe (21) from the dust hood (23). The air and welding slag enter the filter box (20) along the suction pipe (21). After the welding slag and dust are filtered by the filter box (20), the air enters the vacuum pump (19) through the air delivery pipe (22) and is then discharged. Step 5: After the welding is completed and cooled, the grinding mechanism (13) is used to perform a grinding operation. The electric telescopic cylinder (25) of the grinding mechanism is extended to push the driving seat (26) of the grinding mechanism downward, so that the grinding sheet (28) moves downward. When the grinding sheet (28) is aligned with the position to be polished, the grinding motor (27) is started. The grinding motor (27) drives the grinding sheet (28) to rotate, and cooperates with the rotation of the first servo motor (9), the second servo motor (10), the third servo motor (16) and the fourth servo motor (18) to make the grinding sheet (28) contact with the grinding area, thereby achieving the grinding of the welding position.

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