Welding auxiliary device for automobile part production and machining

Abstract

The invention discloses an auxiliary welding device for automobile part production and machining, and relates to the technical field of automobile part machining, the auxiliary welding device comprises an equipment base, a fixed seat is fixedly mounted in the equipment base, a linear sliding table is slidably connected in the equipment base, and a pitching movable plate is rotatably connected to the top surface of the fixed seat; a bearing box, a suction cup mounting cylinder, a pneumatic vacuum suction cup, a supporting rod, a piston, a supporting cylinder, a reset spring, a pressure sensor, a first air pump, a first connecting pipe, a second air pump, a second connecting pipe, a rapid clamping frame, an I-shaped connecting block, a third transmission connecting rod, a second electric push rod, a second transmission connecting rod, a first transmission connecting rod, a clamping plate, a clamping block and a clamping positioning groove which are arranged are matched with one another; therefore, the upper part and the lower part of the tail door can be positioned and the positions of the suction cup mounting cylinders and the pneumatic vacuum suction cups can be locked by utilizing the multiple groups of suction cup mounting cylinders and the pneumatic vacuum suction cups, so that the positioning of the upper part and the lower part of the tail door is realized.

Description

Technical Field

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

[0002] Auto parts refer to the various components, assemblies, materials, and accessories used in the manufacture, repair, maintenance, or modification of complete vehicles. They are fundamental components of a vehicle's overall functionality, performance, and safety, and are found throughout every link in the automotive supply chain. Auto parts are the foundation of the automotive industry, encompassing everything from screws to intelligent systems. Welding is a critical step in auto parts processing and production, directly impacting the product's strength, precision, and service life. Common welding methods include brazing, resistance welding, gas shielded welding, laser welding, and friction welding. The welding process for auto parts requires selecting the right process based on the material, production volume, and precision requirements. Automation and rigorous quality inspection are combined to ensure product compliance with OEM standards.

[0003] After extensive searching, it was found that there were problems with the welding of automobile tailgates in the existing technology. Since the staff will braze the front and rear of the tailgate, and the thickness of the front and rear of the tailgate made of aluminum alloy is limited, in the traditional process, the staff will use plywood to press down the front and rear of the tailgate to fix the front and rear of the tailgate. The front and rear of the tailgate themselves have a certain curvature, and the plywood is often a straight plate. If the force of the plywood is too large, the front and rear of the tailgate may be deformed. If the pressure of the plywood is too small, the positioning effect of the front and rear of the tailgate may be poor, causing it to shake during the subsequent brazing process. In addition, during the brazing process, the side of the front and rear of the tailgate away from the welding point may be affected by the tension of the welding, so that the side of the front and rear of the tailgate away from the welding point will be lifted up, which will also cause the front and rear of the tailgate to deform, reduce the accuracy, and have poor welding effect. Therefore, based on the above search and in combination with the prior art, a welding auxiliary device for the production and processing of automobile parts is proposed to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a welding auxiliary device for the production and processing of automobile parts to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A welding auxiliary device for the production and processing of automotive parts, comprising: an equipment base, a fixed base fixedly mounted inside the equipment base, a linear slide slidably connected inside the equipment base, a pitch movable plate rotatably connected to the top surface of the fixed base, a movable block fixedly mounted on the bottom surface of the pitch movable plate, two component fixing blocks fixedly mounted on the top surface of the fixed base, the movable blocks rotatably connected to the component fixing blocks; A welding positioning mechanism, which is arranged on the top surface of the linear slide and the pitch movable plate, and is used to provide welding assistance for the upper and lower parts of the automobile tailgate; The welding positioning mechanism includes two carrying boxes, which are respectively fixedly mounted on the top surfaces of the linear slide and the pitch movable plate. Several guide support cylinders are fixedly mounted on the top surfaces of the carrying boxes. The interior of the carrying boxes is slidably connected to a piston. A support rod is fixedly mounted on the top surface of the piston. The upper end of the support rod passes through the guide support cylinder and extends to the outside of the guide support cylinder. The support rod is elastically connected to the guide support cylinder through a return spring. A pressure sensor is built into the interior of the piston. A suction cup mounting cylinder is fixedly mounted on the top surface of the support rod. A pneumatic vacuum suction cup is fixedly sleeved on the outer circular wall surface of the suction cup mounting cylinder. An air pump 2 for suction is installed on the outer circular wall surface of the suction cup mounting cylinder. The air pump 2 is connected to the suction cup mounting cylinder through a connecting pipe 2.

[0006] The top surface of the supporting plate is fixed with a support frame, and the top surface of the supporting plate is fixedly installed with a device supporting seat. Clamping plates are provided on both sides of the device supporting seat. The top and bottom surfaces of the device supporting seat are rotatably connected to two transmission connecting rods, and the two ends of the two transmission connecting rods are rotatably connected to the clamping plates. The top surface of the supporting plate is provided with an I-type connecting block, and the inner top and inner bottom surfaces of the I-type connecting block are rotatably connected to transmission connecting rod three, one end of the transmission connecting rod three is rotatably connected to transmission connecting rod two, and one end of the transmission connecting rod two is rotatably connected to the clamping plate. An electric push rod two for driving one end of the I-type connecting block is installed on one side of the device supporting seat, and a quick clamping frame is fixedly installed on the outer circular wall of the suction cup mounting cylinder. The quick clamping frame There are several clamping and positioning grooves on both sides of the connecting frame, and a clamping block is fixedly installed on one side of the clamping plate, and the clamping block is movably clamped with the clamping and positioning groove. An air pump is fixedly installed on one side of the carrying box, and the air pump is connected with the carrying box through a connecting pipe. Two workpiece carrying frames are fixedly installed on the top surface of the carrying box, and a rotating movable frame is fixedly installed on the top surface of the workpiece carrying frame. The internal rotation of the rotating movable frame is connected to a memory metal plate, and one side of the memory metal plate is coaxially connected to a driving gear. The top surface of the workpiece carrying frame is slidably connected to a rack, and the rack is meshed with the driving gear. A cylinder for driving the rack to move is fixedly installed on the top surface of the workpiece carrying frame, and a laser scanner for scanning the upper and lower parts of the tailgate is provided on the top surface of the equipment base.

[0007] Furthermore, a ball screw is rotatably connected to the interior of the device base, the linear slide is threadedly connected to the ball screw, and a Y-axis drive motor for driving the ball screw to rotate is installed on one side of the device base.

[0008] Furthermore, a guide limit groove is provided on the inner top surface of the workpiece carrier, a slider limit block is fixedly installed on the bottom surface of the rack, a rotation limit rod for limiting the movement of the slider limit block is fixedly installed inside the guide limit groove, and the rotation limit rod is slidably connected to the slider limit block.

[0009] Furthermore, two fixed support blocks are fixedly installed on the top surface of the fixed seat, a module mounting seat is rotatably connected between the two fixed support blocks, an electric push rod 1 is fixedly installed on one side of the module mounting seat, and the telescopic axis of the electric push rod 1 is universally connected to the bottom surface of the pitch movable plate.

[0010] Furthermore, a rotating telescopic cylinder is fixedly installed on one side of the equipment base, a top horizontal plate is fixedly installed on the top surface of the telescopic axis of the rotating telescopic cylinder, a transmission gear 1 is rotatably connected to the inside of the top horizontal plate, a connecting plate is fixedly installed on the bottom surface of the transmission gear 1, and the top surface of the laser scanner is fixedly connected to the bottom surface of the connecting plate.

[0011] Furthermore, a positioning mounting frame is fixedly installed on the top surface of the top horizontal plate, and a driving gear is rotatably connected inside the positioning mounting frame. The driving gear is engaged with the transmission gear, and a servo motor for driving the driving gear to rotate is installed on one side of the positioning mounting frame.

[0012] Furthermore, two guide limit rods are fixedly installed between one side of the fixed seat and the inner side of the equipment base, the linear slide is slidably connected to the guide limit rods, the top surface of the guide support cylinder is fixedly sleeved with a sealing ring, and the outer circular wall surface of the support rod is slidably connected to the inner circular wall surface of the sealing ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the provided carrying boxes, the staff respectively place the upper part and the lower part of the tailgate on the top surfaces of the two carrying boxes, and through the provided carrying boxes, suction cup mounting cylinders, pneumatic vacuum suction cups, support rods, pistons, support cylinders, return springs, pressure sensors, air pump one, connecting pipe one, air pump two, connecting pipe two, quick clamping frame, I-type connecting block, transmission connecting rod three, electric push rod two, transmission connecting rod two, transmission connecting rod one, clamping plate, clamping block and clamping positioning grooves, multiple sets of suction cup mounting cylinders and pneumatic vacuum suction cups can be used to position the upper part and the lower part of the tailgate and lock the positions of the suction cup mounting cylinders and the pneumatic vacuum suction cups. At this time, the suction cup mounting cylinders and the pneumatic vacuum suction cups fit the curvature of the upper part and the lower part of the tailgate to the maximum extent, and the remaining suction cup mounting cylinders and the pneumatic vacuum suction cups will move downward to prevent these suction cup mounting cylinders and the pneumatic vacuum suction cups from occupying the operating space of the welding robot arm; By cooperating with each other, the cylinder, adjustment base block, rack, drive gear, memory metal plate and laser scanner can ensure the stability of the upper and lower parts of the tailgate while avoiding their deformation, thereby achieving an auxiliary welding effect on the upper and lower parts of the tailgate, which helps workers to weld automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the connection structure between the linear slide and the equipment base of the present invention; Figure 3 This is a schematic diagram of the connection structure between the transmission gear 1 and the driving gear of the present invention; Figure 4 This is a schematic diagram of the connection structure of the fixed block and the movable block of the components of the present invention; Figure 5 This is a schematic diagram of the connection structure between the connecting pipe 1 and the carrying box of the present invention; Figure 6 It is a schematic diagram of the connection structure between the memory metal plate and the rotating movable frame of the present invention; Figure 7 It is a bottom view schematic diagram of the connection structure of the slider limit block and the rotation limit rod of the present invention; Figure 8 This is a schematic diagram of the connection structure between the connecting pipe 2 and the suction cup mounting cylinder of the present invention; Figure 9 for Figure 8 Schematic diagram of the local structure of A; Figure 10 This is a schematic diagram of the connection structure between the clamping plate and the clamping block of the present invention; Figure 11 This is a schematic diagram of the connection structure between the support rod and the guide support cylinder of the present invention; Figure 12It is a schematic cross-sectional view of the piston structure of the present invention.

[0015] In the figure: 1. Equipment base; 2. Linear slide; 3. Rotary telescopic cylinder; 4. Welding positioning mechanism; 5. Ball screw; 6. Y-axis drive motor; 7. Guide limit rod; 8. Fixed seat; 9. Pitch movable plate; 10. Carrying box; 11. Top cross plate; 12. Transmission gear 1; 13. Positioning mounting frame; 14. Driving gear; 15. Servo motor; 16. Connecting plate; 17. Laser scanner; 18. Component fixing block; 19. Movable block; 20. Fixed support block; 21. Module mounting seat; 22. Electric push rod 1; 23. Pressure sensor; 24. Workpiece carrier; 25. Guide support cylinder; 26. Air pump 1; 27. Connecting pipe 1; 28. Rack; 29. Rotating movable frame; 30. Driving gear; 31. Memory metal plate; 32. Cylinder; 33. Adjusting base block; 34. Guide limit groove; 35. Slider limit block; 36. Rotation limit rod; 37. Suction cup mounting tube; 38. Pneumatic vacuum suction cup; 39. Quick clamping frame; 40. Connecting pipe 2; 41. Air pump 2; 42. Load-bearing chassis; 43. Clamping plate; 44. Clamping block; 45. Clamping positioning groove; 46. Transmission connecting rod 1; 47. Transmission connecting rod 2; 48. Transmission connecting rod 3; 49. Type connecting block; 50. Equipment bearing seat; 51. Electric push rod 2; 52. Support rod; 53. Reset spring; 54. Piston; 55. Sealing ring. DETAILED DESCRIPTION

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

[0017] In a typical implementation of this application, please refer to Figures 1 to 12 A welding auxiliary device for the production and processing of automobile parts includes an equipment base 1, a fixed base 8 is fixedly installed inside the equipment base 1, a linear slide 2 is slidably connected inside the equipment base 1, the top surface of the fixed base 8 is rotatably connected to a pitch movable plate 9, the bottom surface of the pitch movable plate 9 is fixedly installed with a movable block 19, the top surface of the fixed base 8 is fixedly installed with two component fixing blocks 18, the movable block 19 is rotatably connected to the component fixing block 18 via a rotating shaft, and a welding positioning mechanism 4 is provided on the top surface of the linear slide 2 and the pitch movable plate 9, and is used to provide welding assistance for the upper and lower parts of the automobile tailgate; The welding positioning mechanism 4 includes two carrying boxes 10, which are respectively fixedly mounted on the top surfaces of the linear slide 2 and the pitch movable plate 9. A plurality of guide support cylinders 25 are fixedly mounted on the top surface of the carrying box 10. The guide support cylinder 25 is connected to the carrying box 10. The interior of the carrying box 10 is slidably connected with a piston 54. A support rod 52 is fixedly mounted on the top surface of the piston 54. The upper end of the support rod 52 passes through the guide support cylinder 25 and extends to the outside of the guide support cylinder 25. The support rod 52 is elastically connected to the guide support cylinder 25 through a reset spring 53. A pressure sensor 23 is built into the interior of the piston 54. The pressure sensor 23 can detect pressure. A suction cup mounting cylinder 37 is fixedly mounted on the top surface of the support rod 52. The outer circumferential wall surface of the suction cup mounting cylinder 37 is fixedly sleeved with a pneumatic vacuum suction cup 38. The reset spring 53 is provided to the guide support cylinder 25. The spring 53 is movably sleeved on the outer circular wall of the support rod 52, one end of the return spring 53 is fixedly connected to the top surface of the return spring 53, and the other end of the return spring 53 is fixedly connected to the bottom surface of the suction cup mounting cylinder 37. The pneumatic vacuum suction cup 38 is used to adsorb and fix the upper and lower parts of the tailgate. The outer circular wall of the suction cup mounting cylinder 37 is installed with an air pump 2 41 for suction, and the air outlet of the air pump 2 41 is fixedly sleeved with a connecting pipe 2 40, one end of the connecting pipe 2 40 is connected to the suction cup mounting cylinder 37, and the air pump 2 41 draws out the air in the suction cup mounting cylinder 37 and the pneumatic vacuum suction cup 38 through the connecting pipe 2 40. The carrying box 10 and multiple pneumatic vacuum suction cups 38 on the left are used to position the upper part of the tailgate, while the carrying box 10 and multiple pneumatic vacuum suction cups 38 on the right are used to position the lower part of the tailgate; Among them, by placing the upper part and the lower part of the tailgate on multiple pneumatic vacuum suction cups 38 on the left and right sides respectively, the pneumatic vacuum suction cups 38 in contact with the upper part or the lower part of the tailgate drive the suction cup mounting cylinder 37 to move downward, which causes the support rod 52 to drive the piston 54 to move downward while causing the pressure sensor 23 to sense pressure. Under the action of the return spring 53, the multiple pneumatic vacuum suction cups 38 fit with the upper part and the lower part of the tailgate. At the same time, the air pump 2 41 corresponding to the pressure sensor 23 that senses the pressure draws out the air in the pneumatic vacuum suction cups 38, so that it adsorbs and fixes the upper part and the lower part of the tailgate, and fits the curvature of the upper part and the lower part of the tailgate to the greatest extent.

[0018] The outer circumferential wall surface of the guide support cylinder 25 is fixedly sleeved with a bearing chassis 42, and the top surface of the bearing chassis 42 is fixedly installed with an equipment bearing seat 50. Clamping plates 43 are provided on both sides of the equipment bearing seat 50. The top and bottom surfaces of the equipment bearing seat 50 are rotatably connected to two transmission connecting rods 46 through a rotating shaft. Both ends of the two transmission connecting rods 46 are rotatably connected to the clamping plate 43 through a rotating shaft. The top surface of the bearing chassis 42 is provided with an I-type connecting block 49. The inner top surface and inner bottom surface of the I-type connecting block 49 are rotatably connected to a transmission connecting rod 3 48 through a rotating shaft. One end of the transmission connecting rod 3 48 is rotatably connected to a transmission connecting rod 2 47 through a rotating shaft. One end of the transmission connecting rod 2 47 is rotatably connected to the clamping plate 43 through a rotating shaft. The plate 43 is rotatably connected, and the transmission connecting rod 2 47 is an L-shaped structure. An electric push rod 2 51 for driving one end of the industrial connection block 49 is installed on one side of the equipment bearing seat 50. One end of the telescopic shaft of the electric push rod 2 51 is fixedly connected to one side of the industrial connection block 49. A quick clamping frame 39 is fixedly installed on the outer circular wall of the suction cup mounting cylinder 37. Several clamping positioning grooves 45 are provided on both sides of the quick clamping frame 39. A clamping block 44 is fixedly installed on one side of the clamping plate 43, and the clamping block 44 is movably clamped with the clamping positioning groove 45. A PLC controller is fixedly installed on one side of the equipment base 1. The air pump 2 41, the pressure sensor 23 and the electric push rod 2 51 are all electrically connected to the PLC controller.

[0019] Since the pneumatic vacuum suction cup 38 and the suction cup mounting cylinder 37 in contact with the upper and lower parts of the tailgate will move downward, the downward movement of the suction cup mounting cylinder 37 causes the quick clamping frame 39 to move downward. At this time, the pressure sensor 23, which senses the pressure, activates the corresponding electric push rod 2 51 through the PLC controller. The electric push rod 2 51 drives the type connecting block 49 to move outward, so that the two sets of clamping plates 43 and the clamping block 44 are clamped to the quick clamping frame 39 under the cooperation of the transmission connecting rod 1 46, the transmission connecting rod 2 47 and the transmission connecting rod 3 48, thereby locking the position of the pneumatic vacuum suction cup 38 and preventing the upper and lower parts of the tailgate from shaking after being fixed. An air pump 26 is fixedly installed on one side of the carrying box 10. The air pump 26 is connected to the carrying box 10 through a connecting pipe 27. The connecting pipe 27 is fixedly sleeved into the air inlet of the air pump 26. The positions of the multiple suction cup mounting cylinders 37 and pneumatic vacuum suction cups 38 corresponding to the pressure sensor 23 that senses the pressure are locked. Then, the air pump 26 and the connecting pipe 27 cooperate to extract the air inside the carrying box 10, which allows the piston 54 in the remaining guide support cylinder 25 to drive the suction cup mounting cylinders 37 and pneumatic vacuum suction cups 38 to move downward via the support rod 52, preventing the remaining suction cup mounting cylinders 37 and pneumatic vacuum suction cups 38 from affecting the welding of the upper and lower parts of the tailgate. Two workpiece carriers 24 are fixedly installed on the top surface of the carrying box 10, and a rotating movable frame 29 is fixedly installed on the top surface of the workpiece carrier 24. The interior of the rotating movable frame 29 is rotatably connected to a memory metal plate 31 through a rotating shaft. The memory metal plate 31 is a memory alloy and can adjust the curvature according to the curvature of the upper and lower parts of the tailgate. A driving gear 30 is coaxially connected to one side of the memory metal plate 31. The top surface of the workpiece carrier 24 is slidably connected to the rack 28, and the rack 28 is engaged with the driving gear 30. A cylinder 32 for driving the rack 28 to move is fixedly installed on the top surface of the workpiece carrier 24, and an adjustment base block 33 is fixedly installed on one side of the rotating movable frame 29. One end of the telescopic shaft of the cylinder 32 is fixedly connected to one side of the adjustment base block 33. The top surface of the equipment base 1 is provided with a laser scanner 17 for scanning the upper and lower parts of the tailgate. The laser scanner 17 can scan the deformation of the upper and lower parts of the tailgate; After the upper and lower parts of the tailgate are positioned using multiple sets of suction cup mounting cylinders 37 and pneumatic vacuum suction cups 38, the memory metal plate 31 is pressed down by the engagement of the pneumatic vacuum suction cups 38 and the drive gear 30. During this process, the laser scanner 17 scans the upper and lower parts of the tailgate at intervals of 0.5 seconds to achieve maximum downward force while avoiding deformation of the upper and lower parts of the tailgate. The cylinder 32 and the laser scanner 17 are both electrically connected to the PLC controller.

[0020] In the above technical features, by using the provided carrying boxes 10, the staff respectively places the upper and lower tailgate parts on the top surfaces of the two carrying boxes 10. The multiple suction cup mounting cylinders 37 and the pneumatic vacuum suction cups 38 on the carrying boxes 10 that are in contact with the upper and lower tailgate parts move downward. The downward movement of the suction cup mounting cylinders 37 and the pneumatic vacuum suction cups 38 causes the support rod 52 to drive the piston 54 downward in the guide support cylinder 25, and at the same time, the return spring 53 is compressed. At this time, the pressure sensor 23 inside the corresponding piston 54 senses pressure. Due to the curvature of the upper and lower tailgate parts, the curvature causes each set of suction cup mounting cylinders 37 and pneumatic vacuum cups 38 to move downward to different heights. The pressure sensor 23, sensing the pressure, activates the corresponding air pump 2 41 via the PLC controller. The air pump 2 41 draws air out of the suction cup mounting cylinders 37 and pneumatic vacuum cups 38 via the connecting pipe 2 40. This creates a negative pressure inside the pneumatic vacuum cups 38. The negative pressure enables the pneumatic vacuum cups 38 to adhere to the upper and lower tailgate parts. The downward movement of the suction cup mounting cylinders 37 and pneumatic vacuum cups 38 also drives the quick-clamping frame 39 downward. In addition, the multiple pressure sensors 23 that sense the pressure activate the electric push rod 2 51 through the PLC controller. The telescopic shaft of the electric push rod 2 51 moves outward, driving the type connection block 49 to move outward. The outward movement of the type connection block 49 drives the transmission link 3 48 to rotate inward. The inward rotation of the transmission link 3 48 drives the transmission link 2 47 to rotate inward, and at the same time, the two clamping plates 43 move inward. The inward rotation of the clamping plate 43 also causes the transmission link 1 46 to rotate inward around the equipment bearing seat 50, and the clamping plate 43 moves inward. The movement drives the clamping block 44 to move inward, and the clamping block 44 moves inward to clamp with the clamping positioning groove 45 on the quick clamping frame 39. The clamping block 44 and the clamping positioning groove 45 clamp and lock the height of the multiple sets of suction cup mounting cylinders 37 and the pneumatic vacuum suction cups 38 in contact with the upper and lower parts of the tailgate, preventing the upper and lower parts of the tailgate from shaking after positioning, realizing floating positioning of the upper and lower parts of the tailgate, and allowing the multiple sets of suction cup mounting cylinders 37 and the pneumatic vacuum suction cups 38 to fit the curvature of the upper and lower parts of the tailgate to the greatest extent; The PLC controller starts the air pump 26, which draws air out of the carrying box 10 through the connecting pipe 27. This creates a negative pressure in the guide support cylinder 25 corresponding to the suction cup mounting cylinder 37 and the pneumatic vacuum suction cup 38 in the upper portion of the carrying box 10 that are not in contact with the upper and lower portions of the tailgate. The negative pressure causes the piston 54 inside the guide support cylinder 25 to move the support rod 52 downward. The downward movement of the support rod 52 drives the remaining suction cup mounting cylinders 37 and the pneumatic vacuum suction cup 38 downward, thereby preventing these suction cup mounting cylinders 37 and the pneumatic vacuum suction cup 38 from occupying the operating space of the welding robot arm, thereby improving the welding effect. Secondly, after the upper and lower parts of the tailgate are floated and positioned using the multiple sets of suction cup mounting cylinders 37 and the pneumatic vacuum suction cups 38 on the carrying box 10, the PLC controller activates the cylinder 32. The telescopic shaft of the cylinder 32 moves outward, driving the adjustment base block 33 to move outward. The outward movement of the adjustment base block 33 drives the rack 28 to move outward. The outward movement of the rack 28 drives the drive gear 30 to rotate. The rotation of the drive gear 30 causes the memory metal plate 31 to press down on the top surfaces of the upper and lower parts of the tailgate, further adjusting the upper and lower parts of the tailgate. The lower part is positioned. While the memory metal plate 31 is pressing down on the upper and lower parts of the tailgate, the laser scanner 17 scans the upper and lower parts at 0.5 second intervals. As the travel of the rack 28 increases, the downward force of the memory metal plate 31 increases. If the laser scanner 17 detects deformation of the upper and lower parts of the tailgate, the downward force is reduced until the upper and lower parts return to their original state. At this point, the downward force on the upper and lower parts of the tailgate reaches its maximum, thereby ensuring the stability of the upper and lower parts of the tailgate while preventing their deformation. Then, the welding robot arm brazes the upper and lower parts of the tailgate. During the brazing process, the laser scanner 17 continues to detect the deformation of the upper and lower parts of the tailgate. If one side of the upper and lower parts of the tailgate, away from the welding point, is tilted due to the tension of the brazing, the cylinder 32 corresponding to this side drives the rack 28 to move and increase the stroke, thereby increasing the downward pressure of the memory metal plate 31 on this side, further preventing the upper and lower parts of the tailgate from deforming during the welding process and improving the welding effect. During this process, the upper and lower parts of the tailgate are positioned by multiple sets of movable suction cup mounting cylinders 37 and pneumatic vacuum suction cups 38 on the carrying box 10 to maximize the fit of the upper and lower parts of the tailgate. In addition, two memory metal plates 31 are used to press down the top surfaces of the upper and lower parts of the tailgate, and the laser scanner 17 is used to detect the deformation of the upper and lower parts of the tailgate, so that the memory metal plates 31 can reach the maximum downward pressure while preventing deformation, and further fix the upper and lower parts of the tailgate to prevent the upper and lower parts of the tailgate from being deformed due to their own curvature and clamping force during the fixing process, thereby realizing active deformation suppression and real-time quality control during the brazing process of the upper and lower parts of the tailgate, and achieving the welding auxiliary effect of the upper and lower parts of the tailgate, which is helpful for the staff to weld automobile parts.

[0021] As a preferred implementation in this embodiment, please refer to Figures 1 and 2 The internal rotation of the equipment base 1 is connected to the ball screw 5, and the linear slide 2 is threadedly connected to the ball screw 5. A Y-axis drive motor 6 for driving the ball screw 5 to rotate is installed on one side of the equipment base 1. One end of the drive shaft of the Y-axis drive motor 6 passes through the equipment base 1 and is fixedly connected to one end of the ball screw 5. One end of the ball screw 5 is rotatably connected to one side of the fixed seat 8 through a bearing. The fixed seat 8 can support one end of the ball screw 5. The staff places the upper part and the lower part of the tailgate on the top surfaces of the left and right carrying boxes 10 respectively. The Y-axis drive motor 6 drives the ball screw 5 to rotate so that the linear slide 2, together with the right carrying box 10 and the lower part of the tailgate, moves toward the upper part of the tail until the two are in contact. The Y-axis drive motor 6 is electrically connected to the PLC controller.

[0022] Specifically, through the setting of the carrying box 10, after the upper part and the lower part of the tailgate are respectively fixed on the top surfaces of the two carrying boxes 10, the driving shaft of the Y-axis drive motor 6 rotates to drive the ball screw 5 to rotate. The rotation of the ball screw 5 causes the linear slide 2 to drive the carrying box 10 and the lower part of the tailgate to move to the left along the ball screw 5. The linear slide 2 drives the lower part of the tailgate to move until it contacts the upper part of the tailgate on the left carrying box 10, thereby achieving the movement effect of the lower part of the tailgate.

[0023] A guide limit groove 34 is provided on the inner top surface of the workpiece carrier 24, and a slider limit block 35 is fixedly installed on the bottom surface of the rack 28. A rotation limit rod 36 for limiting the movement of the slider limit block 35 is fixedly installed inside the guide limit groove 34, and the rotation limit rod 36 is slidably connected to the slider limit block 35.

[0024] Specifically, through the provision of the rack 28, the movement of the rack 28 will drive the slider limit block 35 to move along the rotating limit rod 36 inside the guide limit groove 34 on the workpiece carrier 24. The slider limit block 35 and the rotating limit rod 36 can limit the movement of the rack 28, thereby achieving a limiting effect on the rack 28.

[0025] Two fixed support blocks 20 are fixedly installed on the top surface of the fixed seat 8, and a module mounting seat 21 is rotatably connected between the two fixed support blocks 20 via a rotating shaft. An electric push rod 22 is fixedly installed on one side of the module mounting seat 21. The telescopic axis of the electric push rod 22 is rotatably connected to the bottom surface of the pitch movable plate 9 through a universal joint. The electric push rod 22 is electrically connected to the PLC controller. The telescopic axis of the electric push rod 22 moves outward to adjust the tilt angle of the pitch movable plate 9, thereby adjusting the tilt angle of the right carrying box 10 and the upper part of the tailgate thereon.

[0026] Preferably, an electric push rod 22 is provided, and the telescopic axis of the electric push rod 22 moves outward to drive one side of the pitch movable plate 9 to rotate upward, while the electric push rod 22 drives the module mounting seat 21 to rotate between the two fixed support blocks 20. The upward rotation of one side of the pitch movable plate 9 also causes the other side of the pitch movable plate 9 to drive the movable block 19 to rotate between the two component fixed blocks 18. The upward rotation of one side of the pitch movable plate 9 causes the carrying box 10 thereon and the upper part of the tailgate to tilt, thereby adjusting the welding angle between the upper part and the lower part of the tailgate.

[0027] A rotating telescopic cylinder 3 is fixedly installed on one side of the equipment base 1, and a top horizontal plate 11 is fixedly installed on the top surface of the telescopic axis of the rotating telescopic cylinder 3. The interior of the top horizontal plate 11 is rotatably connected to a transmission gear 12 through a rotating shaft, and a connecting plate 16 is fixedly installed on the bottom surface of the transmission gear 12. The top surface of the laser scanner 17 is fixedly connected to the bottom surface of the connecting plate 16. After the upper part and the lower part of the tailgate are positioned on the top surfaces of the two carrying boxes 10, the rotating telescopic cylinder 3 drives the top horizontal plate 11 to move upward and rotate one hundred and eighty degrees to facilitate scanning of the upper part and the lower part of the tailgate.

[0028] Specifically, through the setting of the carrying box 10, after the upper part and the lower part of the tailgate are positioned on the top surfaces of the two carrying boxes 10, the PLC controls to start the rotating telescopic cylinder 3, and the telescopic axis of the rotating telescopic cylinder 3 moves upward to drive the top horizontal plate 11 and the laser scanner 17 to move upward, and then the telescopic axis of the rotating telescopic cylinder 3 rotates one hundred and eighty degrees to drive the top horizontal plate 11 and the laser scanner 17 to rotate to the top surfaces of the upper part and the lower part of the tailgate, so as to facilitate the laser scanner 17 to detect the deformation of the upper part and the lower part of the tailgate.

[0029] A positioning mounting frame 13 is fixedly installed on the top surface of the top horizontal plate 11. The interior of the positioning mounting frame 13 is rotatably connected to a driving gear 14 through a rotating shaft. The driving gear 14 is engaged with a transmission gear 12. A servo motor 15 for driving the driving gear 14 to rotate is installed on one side of the positioning mounting frame 13. One end of the driving shaft of the servo motor 15 passes through the positioning mounting frame 13 and is rotatably connected to one side of the driving gear 14. The servo motor 15 is electrically connected to the PLC controller. The driving gear 14 is driven to rotate by the servo motor 15. The driving gear 14 cooperates with the positioning mounting frame 13 to drive the laser scanner 17 to rotate, thereby adjusting the scanning angle of the laser scanner 17.

[0030] Specifically, through the servo motor 15, the driving shaft of the servo motor 15 rotates to drive the driving gear 14, the driving gear 14 rotates to drive the transmission gear 12, and the transmission gear 12 rotates to drive the connecting plate 16 and the laser scanner 17, thereby adjusting the angle of the laser scanner 17 and expanding the detection range of the laser scanner 17.

[0031] Two guide limit rods 7 are fixedly installed between one side of the fixed seat 8 and the inner side of the equipment base 1. The linear slide 2 is slidably connected to the guide limit rod 7. The guide limit rod 7 can limit the movement of the linear slide 2. The top surface of the guide support cylinder 25 is fixedly sleeved with a sealing ring 55. The outer circular wall surface of the support rod 52 is slidably connected to the inner circular wall surface of the sealing ring 55. The gap between the support rod 52 and the guide support cylinder 25 can be narrowed by the sealing ring 55.

[0032] Specifically, by setting up the linear slide 2 , the linear slide 2 moves along the two guide limit rods 7 , and the guide limit rods 7 can limit the movement of the linear slide 2 .

[0033] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding auxiliary device for the production and processing of automobile parts, characterized in that ,include: An equipment base, wherein a fixed seat is fixedly installed inside the equipment base, a linear slide is slidably connected inside the equipment base, the top surface of the fixed seat is rotatably connected to a pitch movable plate, the bottom surface of the pitch movable plate is fixedly installed with a movable block, the top surface of the fixed seat is fixedly installed with two component fixing blocks, and the movable block is rotatably connected to the component fixing block; A welding positioning mechanism, which is arranged on the top surface of the linear slide and the pitch movable plate, and is used to provide welding assistance for the upper and lower parts of the automobile tailgate; The welding positioning mechanism includes two carrying boxes, which are respectively fixedly mounted on the top surfaces of the linear slide and the pitch movable plate. Several guide support cylinders are fixedly mounted on the top surfaces of the carrying boxes. The interior of the carrying boxes is slidably connected to a piston. A support rod is fixedly mounted on the top surface of the piston. The upper end of the support rod passes through the guide support cylinder and extends to the outside of the guide support cylinder. The support rod is elastically connected to the guide support cylinder through a return spring. A pressure sensor is built into the interior of the piston. A suction cup mounting cylinder is fixedly mounted on the top surface of the support rod. A pneumatic vacuum suction cup is fixedly sleeved on the outer circular wall surface of the suction cup mounting cylinder. An air pump 2 for suction is installed on the outer circular wall surface of the suction cup mounting cylinder. The air pump 2 is connected to the suction cup mounting cylinder through a connecting pipe 2.

2. The welding auxiliary device for automobile parts production and processing according to claim 1, characterized in that: The outer circular wall of the guide support cylinder is fixedly sleeved with a bearing chassis, and the top surface of the bearing chassis is fixedly installed with an equipment bearing seat, and clamping plates are provided on both sides of the equipment bearing seat, and the top and bottom surfaces of the equipment bearing seat are rotatably connected to two transmission connecting rods 1, and the two ends of the two transmission connecting rods 1 are rotatably connected to the clamping plates. The top surface of the bearing chassis is provided with an I-type connecting block, and the inner top surface and inner bottom surface of the I-type connecting block are rotatably connected to a transmission connecting rod 3, one end of the transmission connecting rod 3 is rotatably connected to a transmission connecting rod 2, and one end of the transmission connecting rod 2 is rotatably connected to the clamping plate, and an electric push rod 2 for driving one end of the I-type connecting block is installed on one side of the equipment bearing seat, and a quick clamping frame is fixedly installed on the outer circular wall of the suction cup mounting cylinder, and the quick clamping frame There are several clamping and positioning grooves on both sides, and a clamping block is fixedly installed on one side of the clamping plate, and the clamping block is movably clamped with the clamping and positioning groove. An air pump is fixedly installed on one side of the carrying box, and the air pump is connected to the carrying box through a connecting pipe. Two workpiece carriers are fixedly installed on the top surface of the carrying box, and a rotating movable frame is fixedly installed on the top surface of the workpiece carrier. The internal rotation of the rotating movable frame is connected to a memory metal plate, and one side of the memory metal plate is coaxially connected to a driving gear. The top surface of the workpiece carrier is slidably connected to a rack, and the rack is meshed with the driving gear. A cylinder for driving the rack to move is fixedly installed on the top surface of the workpiece carrier, and a laser scanner for scanning the upper and lower parts of the tailgate is provided on the top surface of the equipment base.

3. The welding auxiliary device for automobile parts production and processing according to claim 1, characterized in that: The internal rotation of the device base is connected to a ball screw, the linear slide is threadedly connected to the ball screw, and a Y-axis drive motor for driving the ball screw to rotate is installed on one side of the device base.

4. The welding auxiliary device for automobile parts production and processing according to claim 2, characterized in that: A guide limit groove is provided on the inner top surface of the workpiece carrier, a slider limit block is fixedly installed on the bottom surface of the rack, a rotation limit rod for limiting the movement of the slider limit block is fixedly installed inside the guide limit groove, and the rotation limit rod is slidably connected to the slider limit block.

5. The welding auxiliary device for automobile parts production and processing according to claim 1, characterized in that: Two fixed support blocks are fixedly installed on the top surface of the fixed seat, a module mounting seat is rotatably connected between the two fixed support blocks, an electric push rod 1 is fixedly installed on one side of the module mounting seat, and the telescopic axis of the electric push rod 1 is universally connected to the bottom surface of the pitch movable plate.

6. The welding auxiliary device for automobile parts production and processing according to claim 2, characterized in that: A rotating telescopic cylinder is fixedly installed on one side of the equipment base, and a top horizontal plate is fixedly installed on the top surface of the telescopic shaft of the rotating telescopic cylinder. The internal rotation of the top horizontal plate is connected to a transmission gear 1, and a connecting plate is fixedly installed on the bottom surface of the transmission gear 1. The top surface of the laser scanner is fixedly connected to the bottom surface of the connecting plate.

7. The welding auxiliary device for automobile parts production and processing according to claim 6, characterized in that: A positioning mounting frame is fixedly mounted on the top surface of the top horizontal plate, and a driving gear is rotatably connected inside the positioning mounting frame. The driving gear is engaged with the transmission gear, and a servo motor for driving the driving gear to rotate is mounted on one side of the positioning mounting frame.

8. The welding auxiliary device for automobile parts production and processing according to claim 2, characterized in that: Two guide limit rods are fixedly installed between one side of the fixed seat and the inner side of the equipment base. The linear slide is slidably connected to the guide limit rods. A sealing ring is fixedly sleeved on the top surface of the guide support cylinder. The outer circular wall surface of the support rod is slidably connected to the inner circular wall surface of the sealing ring.

Images