Welding mechanism for automobile plate type stamping part

Abstract

The invention relates to the technical field of welding, and discloses a welding mechanism for automobile plate type stamping parts, the welding mechanism comprises a mounting plate, the upper surface of the mounting plate is fixedly connected with a machining table, a stamping component is arranged on the upper surface of the machining table, and a welding mechanism is arranged above the stamping component; the welding mechanism comprises two lifting supporting plates, the top end of each lifting supporting plate is fixedly connected with a rotating wheel frame, the top end of each rotating wheel frame is rotationally connected with a chain wheel, a chain belt is arranged on the outer sides of the two chain wheels, the lower half portion of the chain belt is fixedly connected with a chain connecting rod, and the inner side of the chain connecting rod is rotationally connected with an overturning plate. According to the multi-face arc welding device, arc breaking or splashing caused by sudden change of the distance between a welding gun and a workpiece is avoided, pause caused by segmented welding can be avoided through continuous self-adaptive adjustment of the welding gun, continuous welding of a multi-face arc structure is achieved, the welding efficiency is improved, and the welding quality is improved. The production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding mechanism for automobile plate stamping parts. Background Art

[0002] The welding mechanism of automobile plate stamping parts is mainly used to combine multiple stamping parts through welding processes to form automobile parts or body structures. The welding mechanism is usually combined with CNC robotic arms, robots and automated welding equipment to improve production efficiency and welding accuracy. On the automobile manufacturing production line, the degree of welding is very high. Specialized welding robots are usually used to complete welding tasks to ensure welding quality and consistency, but this increases costs. How to efficiently and cost-effectively weld the same type of stamping parts is a problem that needs to be solved.

[0003] The patent with announcement number CN221984133U discloses a welding machine for spot welding of automobile stamping parts, comprising a shell, a drive assembly is provided on the outer right side of the shell, the outer side of the drive assembly is fixedly connected to a rotating drum 1, the inner side of the shell is rotatably connected to a rotating drum 2, a conveyor belt is sleeved between the rotating drum 1 and the rotating drum 2, the outer left side of the drive assembly is fixedly connected to a disc, the outer left side of the disc is fixedly connected to a connecting rod, the outer side of the connecting rod is rotatably connected to a sleeve, the outer side of the sleeve is fixedly connected to a linkage rod, and the outer side of the linkage rod is rotatably connected to a pivot block. In this utility model, the power delivered by the device can be transmitted to the clamping mechanism through the linkage rod, and the Y-type connecting rod is driven by the threaded rod to make the two rubber clamping blocks move relative to each other, solving the problems of increased cost and inability to center the object due to the use of multiple drive sources. However, this patent still has the problem of being unable to solve the problem of continuous welding of multi-faceted arc structures. Therefore, a welding mechanism for automobile plate stamping parts is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a welding mechanism for automobile plate stamping parts in view of the above-mentioned deficiencies in the prior art.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: a welding mechanism for automobile plate stamping parts, comprising a mounting plate, the upper surface of which is fixedly connected to a processing table, the upper surface of which is provided with a stamping component, and a welding mechanism is provided above the stamping component; The wheelbase is shortened and the shifting mechanism, and the shifting mechanism, the shifting mechanism, the shifting mechanism being a series of rotations of the wheel base and the shifting mechanism, a floating feeder mounted on either side of the yoke, with the floating feeder being a rear-view mirror. The yoke's front end is connected to the wheel base via a through-hole, and the rear end of the wheel base is connected to the beam.

[0006] According to the above technical solution, a drop groove is provided between the mounting plate and the processing table, a degreasing mechanism is provided inside the welding mechanism, positioning mechanisms are provided on the left and right sides of the top surface of the processing table, a hydraulic cylinder is installed on the bottom surface of the mounting plate, the bottom end of the spot welding machine is fixedly connected to the guide plate end shell, the side wall of the guide plate end shell is rotatably connected to the flip rod, and the end of the flip rod away from the guide plate end shell is rotatably connected to the fitting wheel.

[0007] Material toggling mechanism, its both ends are connected with the cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The swing arm end face has a hook portion. The guide block is pushed to move, and the guide block slides along the side of the side groove rail, and the guide block slides along the side groove rail through the guide wheel and drives the flip plate to move together, and the lifting support plate is lowered to make the adjustment seat connected to the side of the flip plate close to the stamping component below through the spot welding machine, and the welding gun head of the spot welding machine is at the joint of the two stamping components. The guide end shell connected to the spot welding machine is against the surface of the stamping workpiece, so that the flip rod in the guide end shell drives the fitting wheel under the action of the torsion spring to always fit the joint of the stamping component, so that the welding gun head of the spot welding machine is always tangent or parallel to the joint of the stamping component, and the flip angle of the flip rod is limited by the limit block on the inner side of the guide end shell. When there is a height difference between the spot welding machine and the surface of the stamping workpiece, the outer reset spring of the elastic rod connected to the pressure plate is contracted, so that the pressure plate pushes the spot welding machine close to the stamping component to make up for the height difference, guiding the welding gun head of the spot welding machine to slide along the side groove rail and dynamically adjust the welding gun angle of the spot welding machine so that it always fits the weld.

[0008] According to the above technical solution, the degreasing mechanism includes a liquid box, the inner wall of the liquid box is fixedly connected to a partition, the surface of the partition is slidably connected to a plug, the sides of the plug are respectively provided with a liquid outlet groove and a liquid inlet groove, the bottom end of the plug is hingedly connected to a flip connecting rod, the middle of the bottom surface of the liquid box is fixedly connected to an infusion tube, and the end of the infusion tube away from the liquid box is fixedly connected to a wiping block.

[0009] According to the above technical solution, the plug slides from the top surface of the partition through the bottom surface of the partition, the side cross-section of the liquid outlet groove and the liquid inlet groove is U-shaped, the liquid outlet groove and the liquid inlet groove are connected to each other, the plug slides through the bottom surface of the liquid agent box, the liquid agent box is fixedly connected to the side wall of the guide plate end shell, the flip connecting rod is hinged to the side of the flip rod away from the plug, and the wiping block is fixedly connected to the bottom surface of the guide plate end shell. When the fitting wheel fits the stamping component and moves along the arc surface of the stamping component, the flip rod pops out under the action of the torsion spring. The guide plate end shell plays a supporting role and keeps the spot welding machine gun head tangent to the arc surface of the stamping component. The deflection of the flip rod drives the connected flip connecting rod to pull the plug, so that the liquid outlet groove opened on the plug slides from the top of the partition to the bottom, so that the liquid for removing oil stains in the liquid agent box enters the liquid inlet groove from the partition, and then is discharged from the liquid inlet groove to the liquid outlet groove and discharged from the bottom of the partition. The infusion tube connected to the liquid agent box is input into the inside of the wiping block, so that the wiping block moves with the movement of the guide plate end shell and wipes the joints of the stamping component to automatically replenish the cleaning liquid.

[0010] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0011] According to the above technical solution, two vertical sliding rods are fixedly connected to the bottom surface of the lifting support plate, and a guide rod frame is slidably connected to the outer side of each vertical sliding rod. The guide rod frame is fixedly connected to the truss, and each of the pressure blocks and the solid wall slide seat is hingedly connected to a spring hinge block at one end away from the hinge block. A buffer spring is fixedly connected between the two spring hinge blocks, and the bottom end of the vertical sliding rod is fixedly connected to the bottom plate.

[0012] The cam is fixed to the left side of the base frame and is connected to the support frame by the spring, and the cam is fixed to the base frame by the spring. When the pressing block continues to move, the flip push plate applies a reverse force to the stamping component through the connected wall plate, and the hinge block connected to the flip push plate pushes the spring hinge block connected to the pressure block to pull the buffer spring.

[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects: The welding mechanism for automobile plate stamping parts is provided with a welding mechanism. The outer reset spring of the elastic rod connected to the pressure plate contracts, so that the pressure plate pushes the spot welder close to the stamping component to compensate for the height difference, guides the welding gun head of the spot welder to slide along the side groove rail, and dynamically adjusts the welding gun angle of the spot welder to always fit the weld seam, which can significantly improve the stability, quality and efficiency of the welding process. The dynamic adjustment of the welding gun angle can maintain a constant arc length and arc voltage to avoid arc breaking or spattering caused by sudden changes in the distance between the welding gun and the workpiece. The continuous adaptive adjustment of the welding gun can avoid pauses caused by segmented welding, solve the problem of continuous welding of multi-faceted arc structures, and improve production efficiency.

[0014] The welding mechanism for automobile plate stamping parts is provided with a degreasing mechanism, which enables the wiping block to move with the movement of the guide plate end shell and wipe the joints of the stamping components to automatically replenish the cleaning liquid. By wiping, pollutants are removed to avoid pollutants from easily causing defects such as pores, cracks or unfusion during high-temperature welding. Especially in the welding of materials that are sensitive to surface cleanliness, such as high-strength steel and aluminum alloy, incomplete degreasing will directly reduce the mechanical properties and corrosion resistance of the weld. Therefore, by cleaning and degreasing, the welding area is ensured to be always in the best surface condition, thereby avoiding welding defects caused by oil stains, rust or impurities.

[0015] The welding mechanism for automobile plate stamping parts is provided with a positioning mechanism to prevent the stamping components from being excessively compressed and deformed due to extrusion when they are fixed. The fixed angle slide has the same connection structure as the solid wall slide, and the positions of the structural connections are different, but the principle is the same as the above. The side pressure plate and the flip push plate connected to the fixed angle slide are used to push the wall plate to fit the corners of the stamping components, so that the gaps between the two stamping components are close to each other, thereby achieving alignment and rapid positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the integral mounting plate of the present invention; Figure 3 It is a structural schematic diagram of the welding mechanism of the present invention; Figure 4 This is a schematic diagram of the connection structure of the flip plate of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of A; Figure 6 It is a structural schematic diagram of the positioning mechanism of the present invention; Figure 7 Schematic diagram of the truss connection structure of the present invention.

[0017] In the figure: 1. Mounting plate; 2. Processing table; 3. Stamping member; 4. Drop groove; 5. Welding mechanism; 51. Lifting support plate; 52. Rotating wheel frame; 53. Chain belt; 54. Sprocket; 55. Chain link; 56. Turning plate; 57. Guide rail block; 58. Guide wheel; 59. Adjusting seat; 510. Spot welding machine; 511. Pressure plate; 512. Side groove rail; 513. Elastic rod; 514. Guide plate end shell; 515. Turning rod; 516. Laminating wheel; 6. Degreasing mechanism; 61. Turning link; 62. Plug block; 63, liquid outlet tank; 64, liquid inlet tank; 65, liquid agent box; 66, partition; 67, wiping block; 68, infusion tube; 7, positioning mechanism; 71, wall-fixing slide; 72, groove block; 73, pressure block; 74, angle-fixing slide; 75, hinge block; 76, flip push plate; 77, synchronous meshing; 78, side pressure plate; 79, wall-attached plate; 710, spring hinge block; 711, lifting push rod; 712, truss; 713, vertical slide rod; 714, guide rod frame; 715, bottom plate; 8, hydraulic cylinder. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 7 One embodiment of the present invention is: a welding mechanism for automobile plate stamping parts, comprising a mounting plate 1, the upper surface of the mounting plate 1 is fixedly connected to the upper surface of a processing table 2, a stamping component 3 is provided on the upper surface of the mounting plate 1, and a welding mechanism 5 is provided above the stamping component 3; The welding mechanism 5 includes two lifting support plates 51, the top of each lifting support plate 51 is fixedly connected to a rotating wheel frame 52, the top of each rotating wheel frame 52 is rotatably connected to a sprocket 54, a chain belt 53 is provided on the outside of the two sprockets 54, the lower half of the chain belt 53 is fixedly connected to a chain link 55, the inner side of the chain link 55 is rotatably connected to a flip plate 56, the middle parts of the front and rear sides of the flip plate 56 are rotatably connected to guide blocks 57, the guide blocks 57 are rotatably connected to the side of the flip plate 56 away from the two guide wheels 58, two side groove rails 512 are fixedly connected between the two lifting support plates 51, the side of the flip plate 56 is fixedly connected to an adjusting seat 59 by screws, the middle side of the adjusting seat 59 is slidably connected to a spot welder 510, the top of the spot welder 510 is fixedly connected to a pressure plate 511, and the four corners of the pressure plate 511 are fixedly connected to elastic rods 513.

[0020] A drop groove 4 is provided between the mounting plate 1 and the processing table 2, a degreasing mechanism 6 is provided inside the welding mechanism 5, positioning mechanisms 7 are provided on the left and right sides of the top surface of the processing table 2, a hydraulic cylinder 8 is installed on the bottom surface of the mounting plate 1, and the bottom end of the spot welding machine 510 is fixedly connected to the guide plate end shell 514, and the side wall of the guide plate end shell 514 is rotatably connected to the flip rod 515, and the end of the flip rod 515 away from the guide plate end shell 514 is rotatably connected to the fitting wheel 516.

[0021] The guide wheel 58 fits the side of the side groove rail 512, the side groove rail 512 is slidably connected to the guide rail block 57, the relative position of the adjusting seat 59 and the guide wheel 58 is adjusted by screws, a return spring is provided on the outside of the elastic rod 513, and the two ends of the return spring are fixedly connected to the pressure plate 511 and the adjusting seat 59 respectively, the elastic rod 513 is slidably connected to the adjusting seat 59, a torsion spring is provided between the flip rod 515 and the guide plate end shell 514, and the torsion spring is fixedly connected to the guide plate end shell 514 and the flip rod 515 respectively, a limit block is provided above the flip rod 515, and the limit block is fixedly connected to the side wall of the guide plate end shell 514 hydraulically The cylinder 8 drives the lifting support plate 51 to slide downward along the surface of the mounting plate 1 and drives the connected rotating wheel frame 52 to move downward. At this time, the side groove rail 512 connected between the two lifting support plates 51 moves downward together with the lifting support plates 51. The external motor rotates to drive the connected sprocket 54 to rotate the chain belt 53. During the movement of the chain belt 53, the chain link 55 is driven to move left or right. The movement of the chain link 55 pushes the guide rail block 57 to move. The guide rail block 57 slides along the side of the side groove rail 512, and the guide rail block 57 slides along the side of the side groove rail 512 through the guide wheel 58 and drives the flip plate 56 to move together, so that the lifting support plate 51 is lowered to flip The adjustment seat 59 connected to the side of the plate 56 is close to the stamping component 3 below through the spot welding machine 510. The welding gun head of the spot welding machine 510 is at the joint of the two stamping components 3. The guide plate end shell 514 connected to the spot welding machine 510 is against the surface of the stamping component 3, so that the flip rod 515 in the guide plate end shell 514 drives the fitting wheel 516 to always fit the joint of the stamping component 3 under the action of the torsion spring, so that the welding gun head of the spot welding machine 510 is always tangent or parallel to the joint of the stamping component 3. The flip angle of the flip rod 515 is limited by the inner limit block of the guide plate end shell 514. When the spot welding machine 510 is at a height of 1.5 meters away from the surface of the stamping component 3, the tip of ... When there is a drop, the external return spring of the elastic rod 513 connected to the pressure plate 511 contracts, so that the pressure plate 511 pushes the spot welder 510 close to the stamping component 3 to compensate for the height difference, guides the welding gun head of the spot welder 510 to slide along the side groove rail 512, and dynamically adjusts the welding gun angle of the spot welder 510 so that it always fits the weld seam, which can significantly improve the stability, quality and efficiency of the welding process. The dynamic adjustment of the welding gun angle can maintain a constant arc length and arc voltage to avoid arc breaking or spattering caused by sudden changes in the distance between the welding gun and the workpiece. The continuous adaptive adjustment of the welding gun can avoid pauses caused by segmented welding and improve production efficiency.

[0022] The degreasing mechanism 6 includes a liquid box 65, the inner wall of which is fixedly connected to a partition 66, the surface of which is slidably connected to a plug 62, the sides of which are respectively provided with a liquid outlet groove 63 and a liquid inlet groove 64, the bottom end of the plug 62 is hingedly connected to a flip connecting rod 61, and an infusion tube 68 is fixedly connected to the middle of the bottom surface of the liquid box 65, and a wiping block 67 is fixedly connected to the end of the infusion tube 68 away from the liquid box 65.

[0023] The plug 62 slides through the bottom surface of the partition 66 from the top surface of the partition 66, and the side cross-section of the liquid outlet groove 63 and the liquid inlet groove 64 is U-shaped. The liquid outlet groove 63 and the liquid inlet groove 64 are connected to each other, and the plug 62 slides through the bottom surface of the liquid agent box 65. The liquid agent box 65 is fixedly connected to the side wall of the guide plate end shell 514. The end of the flip connecting rod 61 away from the plug 62 is hinged to the side of the flip rod 515. The wiping block 67 is fixedly connected to the bottom surface of the guide plate end shell 514. The flip rod 515 pops out under the action of the torsion spring to support the guide plate end shell 514 and keep the gun head of the spot welding machine 510 tangent to the arc surface of the stamping component 3. The deflection of the flip rod 515 drives the connected flip connecting rod 61 to pull the plug 62, so that the liquid outlet groove 63 opened on the plug 62 slides down from the top of the partition 66, thereby allowing the liquid to The liquid for removing oil stains in the agent box 65 enters the liquid inlet tank 64 from the partition 66, and is then discharged from the liquid inlet tank 64 to the liquid outlet tank 63 and discharged from the bottom of the partition 66. The infusion tube 68 connected to the liquid agent box 65 is input into the inside of the wiping block 67, so that the wiping block 67 moves with the movement of the guide plate end shell 514 and adheres to the joints of the stamping component 3 to wipe and automatically replenish the cleaning liquid. By wiping away pollutants, it is avoided that pollutants are prone to produce defects such as pores, cracks or unfusion during high-temperature welding. Especially in the welding of materials that are sensitive to surface cleanliness, such as high-strength steel and aluminum alloy, incomplete degreasing will directly reduce the mechanical properties and corrosion resistance of the weld. Therefore, by cleaning and degreasing, it is ensured that the welding area is always in the best surface state, thereby avoiding welding defects caused by oil stains, rust or impurities.

[0024] The positioning mechanism 7 includes two wall-fixed slides 71 and two angle-fixed slides 74. The two wall-fixed slides 71 are arranged on the right side of the top surface of the mounting plate 1, and the two angle-fixed slides 74 are arranged on the left side of the top surface of the mounting plate 1. The outer side of the hydraulic cylinder 8 is fixedly connected to a truss 712. Both sides of the truss 712 are hingedly connected to a lifting push rod 711. The top surfaces of the wall-fixed slides 71 and the angle-fixed slides 74 are fixedly connected to a clamping block 72. The inner side of each clamping block 72 is slidably connected to a pressure block 73. The top surface of each pressure block 73 is The locking cam 76 is fixedly connected to the locking cam 76 by means of a hinged seat block 75, and the end of the hinged seat block 75 away from the pressure block 73 is hingedly connected to the flip push plate 76. The side of the flip push plate 76 is fixedly connected to an elastic arc piece, and the end of the elastic arc piece away from the flip push plate 76 is fixedly connected to a side pressure plate 78. The ends of the side pressure plate 78 and the flip push plate 76 close to each other are fixedly connected to synchronous meshing teeth 77, and the two synchronous meshing teeth 77 are meshed with each other. The ends of the side pressure plate 78 and the flip push plate 76 away from the synchronous meshing teeth 77 are hingedly connected to a wall plate 79.

[0025] Two vertical sliding rods 713 are fixedly connected to the bottom surface of the lifting support plate 51, and the outer side of each vertical sliding rod 713 is slidably connected to a guide rod frame 714, and the guide rod frame 714 is fixedly connected to the truss 712. Each pressure block 73 and the end of the solid wall slide 71 away from the hinge block 75 are hingedly connected to a spring hinge block 710, and a buffer spring is fixedly connected between the two spring hinge blocks 710. The bottom end of the vertical sliding rod 713 is fixedly connected to the bottom plate 715.

[0026] The end of the lifting push rod 711 on the right side away from the truss 712 is hinged to the solid wall slide 71, and the end of the lifting push rod 711 on the left side away from the truss 712 is hinged to the fixed angle slide 74. The hinge block 75 above the solid wall slide 71 is placed horizontally, and the hinge block 75 above the fixed angle slide 74 is placed vertically. Hinge blocks are provided on the left and right sides of the synchronous meshing gear 77, and the hinge blocks are rotatably connected to the two synchronous meshing gears 77. A tension spring is provided on the outside of the vertical slide rod 713, and the tension spring is fixedly connected to the guide rod frame 714 and the bottom plate 715 respectively. The truss 712 is driven downward by the hydraulic cylinder 8. At this time, the truss 712 drives the corresponding The guide rod frame 714 is connected, and the guide rod frame 714 pushes the tension spring, which pushes the connected bottom plate 715 to move. The bottom plate 715 drives the lifting support plate 51 to move downward, and the downward movement of the truss 712 will pull the lifting push rod 711, and the lifting push rod 711 drives the solid wall slide 71 or the fixed angle slide 74 connected at the other end to slide along the bottom surface of the mounting plate 1, and drives the clamping groove block 72 through the sliding of the solid wall slide 71. The pressure block 73 sliding inside the clamping groove block 72 approaches the side of the stamping component 3, and the pressure block 73 is connected to the flip push plate 76 through the hinge seat block 75, so that the flip push plate 76 contacts the side of the stamping component 3 through the hinged wall plate 79, and then The turning push plate 76 rotates at the connection with the turning push plate 76, and the turning push plate 76 is deflected around the hinge block 75 to push the wall plate 79 here to slide downward in contact with the stamping component 3. The side and back of the turning push plate 76 are parallel to the wall plate 79 here. In this process, the turning push plate 76 is deflected around the hinge block 75 rotation axis together with the side pressure plate 78 through the synchronous meshing teeth 77 and the side pressure plate 78, and the turning push plate 76 and the side pressure plate 78 pass through the elastic arc piece that fits, so that the side pressure plate 78 fits the top of the stamping component 3 through the connected wall plate 79, and the turning push plate 76 and the synchronous meshing teeth 77 connected on the side pressure plate 78 are deflected together to apply pressure to the side and top of the stamping component 3 at the same time. After the movement continues, the flip push plate 76 applies a reverse force to the stamping component 3 through the connected wall plate 79. The hinge block 75 connected to the flip push plate 76 pushes the spring hinge block 710 connected to the pressure block 73 to pull the buffer spring to prevent the stamping component 3 from being excessively compressed and deformed when fixed. The fixed angle slide 74 has the same connection structure as the upper part of the fixed wall slide 71. The structural connection is placed in a different position, but the principle is the same as above. The side pressure plate 78 connected to the fixed angle slide 74 and the flip push plate 76 push the wall plate 79 to fit the corners of the stamping component 3, so that the gaps of the two stamping components 3 are close to each other, realizing alignment and rapid positioning.

[0027] Working principle: When the hydraulic cylinder 8 is in the extended state, the hydraulic cylinder 8 drives the lifting support plate 51 to slide downward along the surface of the mounting plate 1 and drives the connected rotating wheel frame 52 to move downward. At this time, the side groove rail 512 connected between the two lifting support plates 51 moves downward together with the lifting support plates 51, and the external motor rotates to drive the connected sprocket 54 to rotate the chain belt 53. During the movement of the chain belt 53, the chain link 55 is driven to move left or right, and the movement of the chain link 55 pushes the guide rail block 57 to move. The guide rail block 57 slides along the side of the side groove rail 512, and the guide rail block 57 slides along the side groove rail 512 through the guide wheel 58 and drives the flip plate 56 to move together. The lifting support plate 51 is lowered to make the adjustment seat 59 connected to the side of the flip plate 56 close to the lower stamping component 3 through the spot welding machine 510. The welding gun head of the spot welding machine 510 is at the joint of the two stamping components 3. The guide plate end shell 514 connected to the spot welding machine 510 is against the surface of the stamping component 3, so that the flip plate 56 in the guide plate end shell 514 is pressed against the surface of the stamping component 3. The rod 515 drives the fitting wheel 516 to always fit the joint of the stamping component 3 under the action of the torsion spring, so that the welding gun head of the spot welding machine 510 always keeps tangent or parallel to the joint of the stamping component 3. The flip angle of the flip rod 515 is limited by the inner limit block of the guide plate end shell 514. When there is a height difference between the spot welding machine 510 and the surface of the stamping component 3, the outer reset spring of the elastic rod 513 connected to the pressure plate 511 contracts, so that the pressure plate 511 pushes the spot welding machine 510 close to the stamping component 3. The pressing member 3 is used to compensate for the height difference, guide the welding gun head of the spot welding machine 510 to slide along the side groove rail 512, and dynamically adjust the welding gun angle of the spot welding machine 510 so that it always fits the weld seam, which can significantly improve the stability, quality and efficiency of the welding process. The dynamic adjustment of the welding gun angle can maintain a constant arc length and arc voltage to avoid arc breaking or spatter caused by sudden changes in the distance between the welding gun and the workpiece. The continuous adaptive adjustment of the welding gun can avoid pauses caused by segmented welding, thereby improving production efficiency. When the fitting wheel 516 fits the stamping component 3 and moves along the arc surface of the stamping component 3, the flip rod 515 pops out under the action of the torsion spring to support the guide plate end shell 514, and keeps the gun head of the spot welding machine 510 tangent to the arc surface of the stamping component 3. The flip rod 515 deflects and drives the connected flip connecting rod 61 to pull the plug 62, so that the liquid outlet 63 opened on the plug 62 slides from the top of the partition 66 to the bottom, so that the liquid for removing oil stains in the liquid agent box 65 enters the liquid inlet 64 from the partition 66, and then is discharged from the liquid inlet 64 to the liquid outlet 63 and discharged to the bottom of the partition 66. The infusion tube 68 connected to the agent box 65 is input into the interior of the wiping block 67, so that the wiping block 67 moves with the movement of the guide plate end shell 514 and adheres to the joint of the stamping component 3 to wipe and automatically replenish the cleaning liquid. By wiping, contaminants are removed to avoid defects such as pores, cracks or lack of fusion caused by contaminants during high-temperature welding. Especially in the welding of materials such as high-strength steel and aluminum alloy that are sensitive to surface cleanliness, incomplete degreasing will directly reduce the mechanical properties and corrosion resistance of the weld. Therefore, by cleaning and degreasing, the welding area is always kept in the best surface condition, thereby avoiding welding defects caused by oil stains, rust or impurities; When the hydraulic cylinder 8 is in the extended state, the truss 712 is driven downward by the hydraulic cylinder 8. At this time, the truss 712 drives the connected guide rod frame 714, and the guide rod frame 714 pushes the tension spring. The tension spring is forced to push the connected bottom plate 715 to move, and the bottom plate 715 drives the lifting support plate 51 to move downward. The downward movement of the truss 712 will pull the lifting push rod 711, and the lifting push rod 711 drives the fixed wall slide 71 or the fixed angle slide 74 connected to the other end to slide along the bottom surface of the mounting plate 1. The cam 76 is connected to the hinge block 75, and the flip push plate 76 is connected to the hinge block 75, so that the flip push plate 76 can contact the side of the stamping component 3 through the hinged wall plate 79. Then the flip push plate 76 rotates at the connection with the flip push plate 76, and the flip push plate 76 is deflected around the hinge block 75 to push the wall plate 79 here to slide downward in accordance with the stamping component 3. The back of the flip push plate 76 is parallel to the wall plate 79 here. 76 deflects together with the side pressure plate 78 around the hinge block 75 axis through the synchronous meshing teeth 77, and allows the flip push plate 76 and the side pressure plate 78 to pass through the elastic arc piece that fits together, so that the side pressure plate 78 fits the top of the stamping component 3 through the connected wall plate 79, and allows the flip push plate 76 and the synchronous meshing teeth 77 connected on the side pressure plate 78 to deflect together to apply pressure to the side and top of the stamping component 3 at the same time. When the pressure block 73 continues to move, the flip push plate 76 applies a reverse force to the stamping component 3 through the connected wall plate 79, and the flip push plate 76 The connected hinge block 75 pushes the spring hinge block 710 connected to the pressure block 73 to pull the buffer spring to prevent the stamping component 3 from being over-pressed and deformed when fixed, and the fixed angle slide 74 has the same connection structure as the upper part of the solid wall slide 71. The position of the structural connection is different, but the principle is the same as the above content. The side pressure plate 78 and the flip push plate 76 connected to the fixed angle slide 74 push the wall plate 79 to fit the corners of the stamping component 3, so that the gaps of the two stamping components 3 are close to each other, realizing alignment and rapid positioning.

[0028] The present invention provides a welding mechanism for automotive sheet metal stampings. There are numerous methods and approaches for implementing this technical solution. The foregoing merely represents a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A welding mechanism for automobile plate stamping parts, comprising a mounting plate (1), characterized in that: The upper surface of the mounting plate (1) is fixedly connected to the upper surface of the processing table (2), and a stamping component (3) is provided, and a welding mechanism (5) is provided above the stamping component (3); The welding mechanism (5) comprises two lifting support plates (51), the top end of each lifting support plate (51) is fixedly connected to a rotating wheel frame (52), the top end of each rotating wheel frame (52) is rotatably connected to a sprocket (54), a chain belt (53) is provided on the outer side of the two sprockets (54), the lower half of the chain belt (53) is fixedly connected to a chain link (55), the inner side of the chain link (55) is rotatably connected to a flip plate (56), and the middle parts of the front and rear sides of the flip plate (56) are rotatably connected to guide rail blocks (57). The guide rail block (57) is rotatably connected to two guide wheels (58) on the side away from the flip plate (56), and two side groove rails (512) are fixedly connected between the two lifting support plates (51). The side of the flip plate (56) is fixedly connected to an adjustment seat (59) by screws, and the middle side of the adjustment seat (59) is slidably connected to a spot welder (510), and the top of the spot welder (510) is fixedly connected to a pressure plate (511), and the four corners of the pressure plate (511) are fixedly connected to elastic rods (513).

2. A welding mechanism for automobile plate stamping parts according to claim 1, characterized in that: A drop groove (4) is provided between the mounting plate (1) and the processing table (2); a degreasing mechanism (6) is provided inside the welding mechanism (5); positioning mechanisms (7) are provided on the left and right sides of the top surface of the processing table (2); a hydraulic cylinder (8) is installed on the bottom surface of the mounting plate (1); a guide plate end shell (514) is fixedly connected to the bottom end of the spot welding machine (510); a flip rod (515) is rotatably connected to the side wall of the guide plate end shell (514); and a fitting wheel (516) is rotatably connected to the end of the flip rod (515) away from the guide plate end shell (514).

3. A welding mechanism for automobile plate stamping parts according to claim 2, characterized in that: The guide wheel (58) fits the side of the side groove rail (512), the side groove rail (512) is slidably connected to the guide rail block (57), the relative positions of the adjustment seat (59) and the guide wheel (58) are adjusted by screws, a return spring is provided on the outer side of the elastic rod (513), and the two ends of the return spring are respectively fixedly connected to the pressure plate (511) and the adjustment seat (59), the elastic rod (513) is slidably connected to the adjustment seat (59), a torsion spring is provided between the flip rod (515) and the guide plate end shell (514), and the torsion spring is respectively fixedly connected to the guide plate end shell (514) and the flip rod (515), a limit block is provided above the flip rod (515), and the limit block is fixedly connected to the side wall of the guide plate end shell (514).

4. A welding mechanism for automobile plate stamping parts according to claim 3, characterized in that: The degreasing mechanism (6) comprises a liquid agent box (65), the inner wall of the liquid agent box (65) is fixedly connected to a partition (66), the surface of the partition (66) is slidably connected to a plug (62), the side surfaces of the plug (62) are respectively provided with a liquid outlet groove (63) and a liquid inlet groove (64), the bottom end of the plug (62) is hingedly connected to a flip connecting rod (61), the middle part of the bottom surface of the liquid agent box (65) is fixedly connected to an infusion tube (68), and the end of the infusion tube (68) away from the liquid agent box (65) is fixedly connected to a wiping block (67).

5. The welding mechanism for automobile plate stamping parts according to claim 4, characterized in that: The plug (62) slides from the top surface of the partition (66) through the bottom surface of the partition (66); the side cross-section of the liquid outlet groove (63) and the liquid inlet groove (64) is U-shaped; the liquid outlet groove (63) and the liquid inlet groove (64) are connected to each other; the plug (62) slides through the bottom surface of the liquid agent box (65); the liquid agent box (65) is fixedly connected to the side wall of the guide plate end shell (514); the end of the flip connecting rod (61) away from the plug (62) is hinged to the side of the flip rod (515); and the wiping block (67) is fixedly connected to the bottom surface of the guide plate end shell (514).

6. A welding mechanism for automobile plate stamping parts according to claim 5, characterized in that: The positioning mechanism (7) includes two wall-fixed slides (71) and two angle-fixed slides (74), the two wall-fixed slides (71) are arranged on the right side of the top surface of the mounting plate (1), and the two angle-fixed slides (74) are arranged on the left side of the top surface of the mounting plate (1). The outer side of the hydraulic cylinder (8) is fixedly connected to a truss (712), and both sides of the truss (712) are hingedly connected to a lifting push rod (711). The top surfaces of the wall-fixed slides (71) and the angle-fixed slides (74) are fixedly connected to a clamping block (72), and the inner side of each clamping block (72) is slidably connected to a pressure block (73), and each pressure block (73) is fixedly connected to the top surface of the hydraulic cylinder (8). 3) are fixedly connected to the top surface of the hinge block (75), the hinge block (75) is hingedly connected to the flip push plate (76) at one end away from the pressure block (73), the side of the flip push plate (76) is fixedly connected to an elastic arc piece, and the end of the elastic arc piece away from the flip push plate (76) is fixedly connected to a side pressure plate (78), the side pressure plate (78) and the flip push plate (76) are fixedly connected to the ends close to each other with synchronous meshing teeth (77), and the two synchronous meshing teeth (77) are meshed with each other, and the side pressure plate (78) and the flip push plate (76) are hingedly connected to a wall plate (79) at one end away from the synchronous meshing teeth (77).

7. A welding mechanism for automobile plate stamping parts according to claim 6, characterized in that: The bottom surface of the lifting support plate (51) is fixedly connected to two vertical sliding rods (713), and the outer side of each vertical sliding rod (713) is slidably connected to a guide rod frame (714), and the guide rod frame (714) is fixedly connected to the truss (712). Each pressure block (73) and the end of the wall-fixing slide (71) away from the hinge block (75) are hingedly connected to a spring hinge block (710), and a buffer spring is fixedly connected between the two spring hinge blocks (710). The bottom end of the vertical sliding rod (713) is fixedly connected to the bottom plate (715).

8. The welding mechanism for automobile plate stamping parts according to claim 7, characterized in that: One end of the lifting push rod (711) on the right side away from the truss (712) is hingedly connected to the wall-fixed slide (71), and one end of the lifting push rod (711) on the left side away from the truss (712) is hingedly connected to the angle-fixed slide (74). The hinge block (75) above the wall-fixed slide (71) is placed horizontally, and the hinge block (75) above the angle-fixed slide (74) is placed vertically. Hinge blocks are provided on the left and right sides of the synchronous gear (77), and the hinge blocks are rotatably connected to the two synchronous gears (77). A tension spring is provided on the outer side of the vertical slide rod (713), and the tension spring is fixedly connected to the guide rod frame (714) and the bottom plate (715) respectively.

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