An automobile part processing device

CN122683245APending Publication Date: 2026-09-04JILIN DAHUA MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202611128582.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-28
Publication Date
2026-09-04

AI Technical Summary

Technical Problem

部分设备虽然能够实现工件的旋转,但其旋转控制的灵活性有限,难以在焊接过程中根据实际需要实时调整旋转速度与角度,影响了环形焊缝的连续性和一致性

Benefits of technology

1.本方案中,第二楔形板固定连接于随输送带同步移动的矩形杆上,通过其倾斜面与固定设置于机架的第一楔形板倾斜面之间的滑动挤压配合,将输送带的水平直线输送力转化为驱动矩形杆沿弧形槽向内侧摆动的径向抵紧力。该设计无需额外配置独立的驱动气缸、液压缸或电动推杆来完成工件端面的对接抵紧动作,一方面大幅简化了设备的整体机械结构与控制逻辑,降低了制造成本与故障率;另一方面避免了增设独立动力源所带来的额外能源消耗与控制时序冲突,在实现精准对接的同时,达到了节能降耗与结构精简的双重技术效果;

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Abstract

The present application relates to the technical field of automobile parts processing, and specifically relates to an automobile parts processing device, which comprises a rack, a welding head for arc welding between two automobile parts, the welding head being connected to the rack through an adjusting mechanism, and a feeding mechanism for feeding the two automobile parts to be arc welded, the feeding mechanism comprising two conveying belts connected to the bottom of the rack through a conveying mechanism, and a plurality of L-shaped plates, each two of the L-shaped plates being installed on the side walls of the two conveying belts in a facing manner, and the L-shaped plates being connected to the side walls of the conveying belts through precise guide hinged assemblies. The present application adopts continuous circulation conveying of the conveying belts, and can complete finished product unloading, automatic feeding and clamping alignment of new workpieces without stopping the equipment, thereby avoiding the need for stopping the equipment to wait for manual material taking and clamping after welding of the traditional equipment is completed, avoiding long-term idle standby of the welding head, and improving the utilization rate of the whole equipment and the production capacity of batch production.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and more specifically to an automotive parts processing equipment. Background Technology

[0002] In the automobile manufacturing process, welding is an important means of connecting metal workpieces. For cylindrical automobile parts (such as drive shafts, shock absorber cylinders, exhaust pipe sections, and other connecting parts), the butt welding of circumferential seams is one of the key processes in automobile parts processing.

[0003] A search revealed that Chinese patent CN213380018U discloses a clamping device for welding automotive parts, including a conveyor belt and a welding torch. A first motor drives a first screw to move the clamping device vertically, a second motor drives a second screw to move it horizontally, and a third motor drives a rotating shaft to rotate the part. Chinese patent CN107717289A discloses an automotive parts welding equipment that uses a clamping movement device and a clamping force control device to clamp and position the workpiece. Furthermore, Chinese patent CN202610238850.8 discloses an automotive parts processing and welding device, including a welding box and a reciprocating conveyor belt driven by a sprocket.

[0004] However, the aforementioned existing technologies still have the following shortcomings: Firstly, for butt welding of cylindrical workpieces, the tight fit between the end faces of the two workpieces is a crucial prerequisite for ensuring welding quality. Gaps between the butt surfaces will lead to serious defects such as incomplete welds, lack of fusion, and porosity. While existing equipment can clamp and fix individual workpieces using clamping devices, the tight fit between two workpieces often relies on manual adjustment or the addition of independent drive devices (such as independent cylinders, hydraulic cylinders, or electric actuators). This method of clamping, dependent on an independent power source, not only increases the overall complexity and manufacturing cost of the equipment but also introduces additional energy consumption. Furthermore, the timing coordination between the independent drive unit and the control system is difficult, and asynchronous actions can easily affect the docking accuracy and production cycle.

[0005] Secondly, during the process of pressing the end faces of two workpieces together, if a rigid pushing method is used, the workpiece end faces are easily deformed, chipped at the edges, or scratched when the pushing force continues to be applied after the end faces of the two workpieces have made contact due to excessive instantaneous extrusion pressure. This is especially true for thin-walled pipes or precision transmission shafts, where the risk of damage from this rigid pressing is particularly prominent, directly affecting the product's processing yield and performance.

[0006] Third, the circumferential weld of cylindrical workpieces requires continuous rotation of the workpiece during the welding process to achieve continuous welding in the entire circumference. In existing equipment, the workpiece rotation drive mechanism and the welding head's welding action are often independent of each other, lacking precise timing coordination. Although some equipment can achieve workpiece rotation, its rotation control flexibility is limited, making it difficult to adjust the rotation speed and angle in real time according to actual needs during the welding process, affecting the continuity and consistency of the circumferential weld.

[0007] To address this, we designed an automotive parts processing equipment. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automotive parts processing equipment.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: An automotive parts processing equipment, comprising: frame; A welding head for arc welding between two automotive parts, the frame being connected to the welding head via an adjustment mechanism; A feeding mechanism for feeding two automotive parts to be arc welded, the feeding mechanism comprising: Two conveyor belts are connected to the bottom of the frame via a conveying mechanism; Multiple L-shaped plates are installed opposite each other on two conveyor belt sidewalls, and the L-shaped plates are connected to the conveyor belt sidewalls by a precision guide hinge assembly. An arc-shaped groove is formed at the upper end of the L-shaped plate; A rectangular rod, the sidewall of which is slidably connected to the inner wall of an arc-shaped groove; The rotating shaft has its sidewall rotatably connected to the sidewall of the rectangular rod located in the arc-shaped groove. A clamping mechanism for clamping automotive parts, the clamping mechanism being rotatably connected to the side wall of the rotating shaft away from the rectangular rod; A clamping mechanism for abutting and fitting two automotive parts together, the clamping mechanism comprising: Two Z-shaped plates are fixedly connected to the bottom of the frame, and the two Z-shaped plates are respectively located on the outside of the two conveyor belts; Two first wedge plates are respectively fixedly connected to the side walls of two Z-shaped plates that are close to each other; Two second wedge plates, the sidewalls of which are respectively connected to the sidewalls of two opposite rectangular rods via elastic mechanisms.

[0010] Preferably, the conveying mechanism includes four L-shaped brackets fixedly connected to the side wall of the frame, with conveying rollers rotatably mounted on the side walls of two adjacent L-shaped brackets, the outer side walls of the two conveying rollers being in contact with the inner side walls of the two conveyor belts, and a first motor for driving one of the conveying rollers to rotate being fixedly connected to the side wall of one of the L-shaped brackets.

[0011] Preferably, the clamping mechanism includes a movable cylinder rotatably connected to the side wall of the rotating shaft away from the rectangular rod, the side wall of the movable cylinder being clearance-fitted with the inner wall of the arc-shaped groove, a bolt being threaded through the top of the movable cylinder, and an arc-shaped clamping plate being rotatably connected to the side wall of the movable cylinder located on the bolt.

[0012] Preferably, the elastic mechanism includes a fixed plate fixedly connected to the end of the rectangular rod away from the pivot, the sidewall of the fixed plate being elastically connected to the sidewall of its corresponding L-shaped plate via multiple springs, and the sidewall of the fixed plate away from the spring being fixedly connected to the sidewall of its corresponding second wedge-shaped plate.

[0013] Preferably, an opening slot is provided at the bottom of the arc-shaped groove near the inner wall of the frame, and the opening slot is located near the rectangular rod. The rotating shaft is fixedly connected to the side wall of the opening slot with a first gear.

[0014] Preferably, two electric slide rails are fixedly connected to the bottom of the frame, and folded plates are slidably connected to the side walls of the two electric slide rails via sliders. A second motor is fixedly connected to the side wall of the folded plate, and a second gear is fixedly connected to the side wall of the movable shaft of the second motor.

[0015] Preferably, a vertical rod is rotatably connected through the bottom of the frame, and multiple brush bristles are fixedly connected to the side wall of the vertical rod between the two conveyor belts. A third motor for driving the vertical rod to rotate is fixedly connected to the lower end of the frame, and a dust suction hood is installed at the top of the frame, with the dust suction hood close to the welding head and multiple brush bristles.

[0016] Preferably, a controller is fixedly installed at the top of the frame.

[0017] Preferably, the adjustment mechanism includes a fixed frame fixedly connected to the bottom of the machine frame, a first electric push rod fixedly connected to the upper end of the fixed frame, a first adjustment plate fixedly connected to the output end of the first electric push rod, a second electric push rod fixedly connected to the lower end of the first adjustment plate via a support plate, a second adjustment plate fixedly connected to the output end of the second electric push rod, an angle adjustment plate rotatably mounted on the side wall of the second adjustment plate, and the welding head snapped onto the angle adjustment plate.

[0018] Preferably, the side wall of the fixing frame is equipped with two first guide rails, and the side walls of the two first guide rails are slidably connected to the side wall of the first adjusting plate. The lower end of the first adjusting plate is equipped with two second guide rails, and the side walls of the two second guide rails are slidably connected to the side wall of the second adjusting plate.

[0019] The present invention has the following beneficial effects: 1. In this design, the second wedge plate is fixedly connected to a rectangular rod that moves synchronously with the conveyor belt. Through the sliding and pressing engagement between its inclined surface and the inclined surface of the first wedge plate fixed to the frame, the horizontal linear conveying force of the conveyor belt is converted into a radial clamping force that drives the rectangular rod to swing inward along the arc-shaped groove. This design eliminates the need for separate drive cylinders, hydraulic cylinders, or electric push rods to complete the workpiece end face mating action. On the one hand, it significantly simplifies the overall mechanical structure and control logic of the equipment, reducing manufacturing costs and failure rates; on the other hand, it avoids the additional energy consumption and control timing conflicts caused by adding an independent power source. While achieving precise mating, it achieves the dual technical effects of energy saving, consumption reduction, and structural simplification. 2. By incorporating a fixed plate and springs, a flexible, adaptive clamping system is constructed, effectively overcoming the technical defects of rigid clamping that can easily lead to workpiece deformation or damage. During the inclined plane extrusion process, multiple springs are gradually compressed and store elastic potential energy. When the end faces of two cylindrical workpieces come into contact, the elastic restoring force of the springs achieves flexible soft contact and a gapless, tight fit. This elastic buffering mechanism effectively absorbs excess extrusion force caused by minor speed fluctuations during conveyor belt movement, dimensional tolerances of the workpiece itself, or installation position deviations. It avoids deformation of the cylindrical workpiece end faces, edge chipping, or surface scratches caused by rigid, forceful pushing. It is particularly suitable for butt welding of thin-walled pipes or precision transmission shafts, improving butt welding accuracy and product yield.

[0020] 3. The controller coordinates the conveying cycle of the first motor, the brush cleaning action driven by the third motor, the passive clamping process of the wedge plate clamping mechanism, the meshing timing of the second and first gears controlled by the electric slide rail, the workpiece rotation angle driven by the second motor, and the precise spatial positioning of the welding head by the first and second electric push rods and the arc-shaped electric slide rail of the adjustment mechanism. Throughout the process, the workpiece automatically completes end-face cleaning and gapless docking during its transport to the welding station. Furthermore, during welding, the workpiece's uniform rotation can be controlled in real-time as needed, enabling continuous high-quality welding of the circumferential weld seam in a single operation without manual intervention. This highly integrated, time-sequential collaborative control mode organically integrates multiple independent processing steps into the same equipment, reducing the transfer and clamping auxiliary time between steps and effectively ensuring consistent welding quality and processing efficiency in mass production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an automotive parts processing equipment proposed in this invention; Figure 2 This is a vertical cross-sectional view of an automotive parts processing equipment proposed in this invention. Figure 3 for Figure 2 Enlarged schematic diagram of part A of the structure; Figure 4 This is a schematic diagram of the structure of two L-shaped plates in an automotive parts processing equipment proposed in this invention; Figure 5 for Figure 4 Enlarged schematic diagram of section B of the structure; Figure 6 This is a right-side perspective three-dimensional structural diagram of an automotive parts processing equipment proposed in this invention; Figure 7 This is a bottom-view three-dimensional structural diagram of an automotive parts processing equipment proposed in this invention; Figure 8 This is a schematic diagram of the adjustment mechanism in an automotive parts processing equipment proposed in this invention.

[0022] In the diagram: 1. Frame; 2. Welding head; 3. L-shaped bracket; 4. Conveyor roller; 5. Controller; 6. Conveyor belt; 7. First motor; 8. L-shaped plate; 9. Arc groove; 10. Rectangular rod; 11. Rotating shaft; 12. Moving cylinder; 13. Bolt; 14. Arc-shaped clamp; 15. Fixing plate; 16. Spring; 17. Z-shaped plate; 18. First wedge plate; 19. Second wedge plate; 20. Opening groove; 21. First gear; 22. Electric slide rail; 23. Folding plate; 24. Second motor; 25. Second gear; 26. Vertical rod; 27. Brush bristles; 28. Third motor; 29. ​​Dust hood; 30. Fixing frame; 31. First electric push rod; 32. First adjusting plate; 33. Second electric push rod; 34. Second adjusting plate; 35. Angle adjusting plate. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Reference Figures 1-8 An automotive parts processing equipment, comprising: Rack 1; Welding head 2 is used for arc welding between two automotive parts. In this solution, the automotive parts to be processed are cylindrical workpieces (such as drive shafts, shock absorber cylinders, exhaust pipe sections, etc.). The frame 1 is connected to the welding head 2 through an adjustment mechanism. The adjustment mechanism is used to achieve precise micro-adjustment of the welding head 2 in multiple dimensions, both vertically and horizontally, to ensure that the welding trajectory is accurately aligned with the welding position of the cylindrical workpiece.

[0025] The adjustment mechanism includes a fixed frame 30 fixedly connected to the bottom of the frame 1. A first electric push rod 31 is fixedly connected to the upper end of the fixed frame 30. A first adjustment plate 32 is fixedly connected to the output end of the first electric push rod 31. A second electric push rod 33 is fixedly connected to the lower end of the first adjustment plate 32 through a support plate. A second adjustment plate 34 is fixedly connected to the output end of the second electric push rod 33. An angle adjustment plate 35 is rotatably installed on the side wall of the second adjustment plate 34. The welding head 2 is snapped onto the angle adjustment plate 35.

[0026] Furthermore, the angle adjustment plate 35 is driven by an arc-shaped electric slide rail, which is existing technology.

[0027] The side wall of the fixed frame 30 is equipped with two first guide rails, and the side walls of the two first guide rails are slidably connected to the side wall of the first adjusting plate 32. The lower end of the first adjusting plate 32 is equipped with two second guide rails, and the side walls of the two second guide rails are slidably connected to the side wall of the second adjusting plate 34.

[0028] The top of the frame 1 is fixedly installed with a controller 5. The controller 5 is a PLC programmable logic controller, which is used to coordinate and control the start, stop, speed, stroke and timing of all electric components in the equipment to realize fully automated processing control.

[0029] During operation, the controller 5 controls the extension and retraction of the first electric push rod 31 and the second electric push rod 33 respectively, driving the first adjusting plate 32 to move up and down along the first guide rail and the second adjusting plate 34 to move horizontally along the second guide rail, thereby driving the welding head 2 to adjust its position in both vertical and horizontal directions, so that the welding head 2 accurately reaches the welding position of the cylindrical workpiece. At the same time, the angle adjusting plate 35 can be used to adjust the tilt angle of the welding head 2 relative to the axis of the workpiece.

[0030] The feeding mechanism is used to feed two automotive parts to be arc welded. The feeding mechanism includes: Two conveyor belts 6 are connected to the bottom of the frame 1 via a conveying mechanism; The conveying mechanism includes four L-shaped brackets 3 fixedly connected to the side wall of the frame 1. Conveying rollers 4 are rotatably installed on the side walls of two adjacent L-shaped brackets 3. The outer side walls of the two conveying rollers 4 are in contact with the inner side walls of the two conveyor belts 6. A first motor 7 that drives one of the conveying rollers 4 to rotate is fixedly connected to the side wall of one of the L-shaped brackets 3. Furthermore, the first motor 7 is electrically connected to the controller 5, which controls the start, stop and speed, and precisely adjusts the conveying speed of the conveyor belt 6.

[0031] It should be noted that the two conveyor belts 6 are synchronous belts, with teeth on their inner surfaces and teeth on the outer surfaces of the conveyor rollers 4 that mesh with these teeth, so as to achieve forced synchronization of the two conveyor belts 6 and avoid misalignment of the cylindrical workpieces.

[0032] Multiple L-shaped plates 8 are installed opposite each other on the side walls of two conveyor belts 6. The L-shaped plates 8 are connected to the side walls of the conveyor belts 6 through a precision guide hinge assembly. It should be noted that the precision guide hinge assembly includes a hinge support fixed to the side wall of the conveyor belt 6, a hinge shaft located at the lower part of the L-shaped plate 8, and a rigid straight guide rail fixed to the inner wall of the frame 1 and extending continuously along the length of the conveyor belt 6. A guide block that slides with the rigid straight guide rail is fixed at the bottom of the L-shaped plate 8. The precision guide hinge assembly is not shown in the figure and is existing technology.

[0033] Arc-shaped groove 9 is formed on the upper end of L-shaped plate 8; The rectangular rod 10 has its sidewalls slidably connected to the inner wall of the arc-shaped groove 9. The sidewall of the rotating shaft 11 is rotatably connected to the sidewall of the rectangular rod 10 located in the arc groove 9, so that the rotating shaft 11 can slide synchronously with the rectangular rod 10, and can also rotate independently. A clamping mechanism for clamping automotive parts is rotatably connected to the side wall of the rotating shaft 11 away from the rectangular rod 10. The clamping mechanism includes a movable cylinder 12 rotatably connected to the side wall of the rotating shaft 11 away from the rectangular rod 10. The side wall of the movable cylinder 12 is clearance-fitted with the inner wall of the arc groove 9. A bolt 13 is threaded through the top of the movable cylinder 12. An arc clamping plate 14 is rotatably connected to the side wall of the movable cylinder 12.

[0034] Furthermore, multiple balls (not shown in the figure) are embedded circumferentially on the outer wall of the movable cylinder 12. The balls roll in contact with the inner wall of the arc groove 9, reducing friction when the movable cylinder 12 rotates and ensuring smooth rotation.

[0035] In use, the operator places the cylindrical workpiece to be welded into the moving cylinder 12, and then tightens the bolt 13. The bolt 13 moves downward, causing the arc-shaped clamping plate 14 to move downward, clamping and fixing the cylindrical workpiece inside the moving cylinder 12. Since the moving cylinder 12 is rotatably connected to the rotating shaft 11, when the rotating shaft 11 rotates, the moving cylinder 12 rotates accordingly, thereby causing the clamped cylindrical workpiece to rotate.

[0036] A clamping mechanism is used to abut and fit two automotive parts together, eliminating gaps between cylindrical workpieces, preventing welding defects such as incomplete welds and gaps, and ensuring fitting accuracy. The clamping mechanism includes: Two Z-shaped plates 17 are fixedly connected to the bottom of the frame 1, and the two Z-shaped plates 17 are located on the outside of the two conveyor belts 6 respectively; Two first wedge plates 18 are respectively fixedly connected to the side walls of two Z-shaped plates 17 that are close to each other; Two second wedge plates 19, the sidewalls of the two second wedge plates 19 are respectively connected to the sidewalls of two opposite rectangular rods 10 through an elastic mechanism. Furthermore, the inclined surface of the second wedge plate 19 is in contact with the inclined surface of the first wedge plate 18 during the movement.

[0037] The elastic mechanism includes a fixed plate 15 fixedly connected to the end of the rectangular rod 10 away from the pivot 11. The side wall of the fixed plate 15 is elastically connected to the side wall of its corresponding L-shaped plate 8 through multiple springs 16. The side wall of the fixed plate 15 away from the springs 16 is fixedly connected to the side wall of its corresponding second wedge plate 19.

[0038] During the feeding and conveying process, the rectangular rod 10 moves synchronously with the conveyor belt 6, driving the second wedge plate 19 to move towards the first wedge plate 18. Through the inclined pressing and cooperation of the second wedge plate 19 and the first wedge plate 18, the rectangular rod 10 is driven to swing inward along the arc groove 9, thereby driving the cylindrical workpieces held by the two sets of clamping mechanisms to move closer to each other and fit together. At the same time, through the elastic buffering effect of the spring 16, the rigid pressing is prevented from causing the cylindrical workpiece to be squeezed and deformed, realizing flexible adaptive pressing and fitting, ensuring that the mating surfaces of the two cylindrical workpieces fit together without gaps, improving the welding quality. At the same time, under the inclined pressing of the second wedge plate 19 and the first wedge plate 18, multiple springs 16 are compressed, providing power for the subsequent reset after the second wedge plate 19 and the first wedge plate 18 separate.

[0039] An opening slot 20 is provided at the bottom of the arc-shaped groove 9 near the inner wall of the frame 1. The opening slot 20 is located near the rectangular rod 10. A first gear 21 is fixedly connected to the side wall of the rotating shaft 11 located inside the opening slot 20. The lower end of the first gear 21 is located outside the opening slot 20 (e.g., Figure 3 (As shown).

[0040] Two electric slide rails 22 are fixedly connected to the bottom of the frame 1. The side walls of the two electric slide rails 22 are slidably connected to a folding plate 23 via a slider. A second motor 24 is fixedly connected to the side wall of the folding plate 23. A second gear 25 is fixedly connected to the side wall of the movable shaft of the second motor 24.

[0041] When the cylindrical workpiece is conveyed to the welding head 2 and the two cylindrical workpieces are in contact with each other, the first gear 21 and the second gear 25 are aligned. Then, the two electric slide rails 22 are adjusted to drive the folding plate 23 to slide, so that the second gear 25 meshes with the first gear 21. Then, the second motor 24 is started, and the first gear 21 and the second gear 25 drive the rotating shaft 11 to rotate, which drives the cylindrical workpiece held by the clamping mechanism to rotate as a whole and adjust the angle, so that the cylindrical workpiece is fully welded.

[0042] It should be noted that after the two cylindrical workpieces are welded, when the two second wedge plates 19 separate from the two first wedge plates 18 respectively, the connection degree of the two cylindrical workpieces after welding is much greater than the elastic force of the multiple springs 16, and will not cause the two cylindrical workpieces to separate after welding.

[0043] Furthermore, after the two cylindrical workpieces are welded, the two movable cylinders 12, bolts 13, and arc-shaped clamping plates 14 rotate to the top (initial state), which facilitates the subsequent forward and reverse rotation of bolts 13 and the disassembly and assembly of cylindrical workpieces. At the same time, after the second gear 25 separates from the first gear 21, the movement accuracy of the L-shaped plate 8 is ensured, so that when the first gear 21 moves with the L-shaped plate 8 to be directly opposite the second gear 25, the second gear 25 can still mesh with the first gear 21 when it moves.

[0044] A vertical rod 26 is rotatably connected through the bottom of the frame 1. Multiple brush bristles 27 are fixedly connected to the side wall of the vertical rod 26 between the two conveyor belts 6. A third motor 28 that drives the vertical rod 26 to rotate is fixedly connected to the lower end of the frame 1. A dust suction hood 29 is installed at the top of the frame 1. The dust suction hood 29 is close to the welding head 2 and the multiple brush bristles 27. Furthermore, the dust suction hood 29 is connected to a negative pressure dust suction device (not shown in the figure) through a pipe.

[0045] When this equipment is working, the operator first places two cylindrical workpieces to be welded into the two moving cylinders 12 facing each other on the two conveyor belts 6 respectively. The bolts 13 are tightened to clamp and fix the cylindrical workpieces through the arc-shaped clamping plates 14. Then the controller 5 starts the first motor 7, drives the conveyor roller 4 to rotate, and drives the two conveyor belts 6 to move synchronously. The two conveyor belts 6 drive the two L-shaped plates 8 hinged to their side walls to be conveyed forward. Before the two clamped cylindrical workpieces are conveyed forward to the welding station, the two cylindrical workpieces move away from each other. When the two cylindrical workpieces move past multiple brush bristles 27, the third motor 28 is driven to rotate, which drives multiple brush bristles 27 to rotate through the vertical rod 26, cleaning the surfaces of the two cylindrical workpieces to be bonded, and avoiding the presence of impurities that may affect the welding quality. During the conveying process, the rectangular rod 10 moves synchronously with the conveyor belt 6, driving the second wedge plate 19 fixed on its side wall to move toward the first wedge plate 18. When the inclined surface of the second wedge plate 19 contacts the inclined surface of the first wedge plate 18, as the conveying continues, under the action of the inclined surface extrusion, the second wedge plate 19 is pushed inward, driving the rectangular rod 10 to move inward along the arc groove 9 (i.e., toward the middle of the two conveyor belts 6). The inward movement of the rectangular rod 10 drives the rotating shaft 11 and the moving cylinder 12 to move inward synchronously, thereby bringing the two cylindrical workpieces clamped in the moving cylinder 12 closer to each other. When the end faces of the two cylindrical workpieces contact each other, under the continuous extrusion of the first wedge plate 18 and the second wedge plate 19, the two cylindrical workpieces are tightly fitted together, eliminating the butt joint gap. At this time, the two cylindrical workpieces after being fitted together are located below the welding head 2. Then the controller 5 controls the first motor 7 to pause, and the conveyor belt 6 stops moving. When the two cylindrical workpieces are transported to the welding head 2 and are in contact with each other, the first gear 21 and the second gear 25 are facing each other. Then, the controller 5 controls the two electric slide rails 22 to start, driving the slider to move the folding plate 23, so that the second gear 25 moves toward the first gear 21 until the second gear 25 meshes with the first gear 21. Then, the controller 5 starts the second motor 24, which drives the second gear 25 to rotate. Through the first gear 21 and the second gear 25, the rotating shaft 11 is rotated, which drives the moving cylinder 12 and the clamped cylindrical workpiece to rotate as a whole, thereby adjusting the welding angle of the cylindrical workpiece, so that the welding head 2 can perform all-round welding on the cylindrical workpiece, ensuring the comprehensiveness and integrity of the welding. After the angle of the cylindrical workpiece is adjusted, the controller 5 controls the first electric push rod 31, the second electric push rod 33 and the arc-shaped electric slide rail of the adjustment mechanism to adjust the welding head 2 to the welding position of the cylindrical workpiece. Then the controller 5 controls the welding head 2 to start and perform arc welding on the joint of the two cylindrical workpieces. During the welding process, the second motor 24 can be started again as needed to drive the cylindrical workpiece to rotate slowly and realize the continuous welding of the annular weld. At this time, the external negative pressure dust collection device sucks in and discharges the welding fumes and dust particles swept up by the brush 27 through the dust collection hood 29, keeping the inside of the frame 1 clean and preventing dust from affecting the welding quality and normal operation of the equipment. After welding is completed, controller 5 restarts the first motor 7, and conveyor belt 6 continues to move forward. At this time, the second wedge plate 19 continues to move forward with the rectangular rod 10, gradually disengaging from the first wedge plate 18. During the disengagement process, the previously compressed spring 16 returns to its original position and extends, pushing the fixed plate 15 and the rectangular rod 10 to swing outward and reset, causing the two clamped cylindrical workpieces to separate from each other. Conveyor belt 6 continues to transport the welded cylindrical workpieces forward to the outside of the frame 1, where the operator removes the cylindrical workpieces. Then, conveyor belt 6 continues to circulate, transporting the next set of cylindrical workpieces to be welded to the welding station, realizing continuous automated processing.

[0046] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automotive parts processing equipment, characterized in that, include: Rack (1); Welding head (2), which is used for arc welding between two automotive parts, is connected to the frame (1) via an adjustment mechanism; A feeding mechanism for feeding two automotive parts to be arc welded, the feeding mechanism comprising: Two conveyor belts (6) are connected to the bottom of the frame (1) via a conveying mechanism; Multiple L-shaped plates (8), with every two L-shaped plates (8) mounted opposite each other on the sidewalls of two conveyor belts (6), the L-shaped plates (8) being connected to the sidewalls of the conveyor belts (6) via precision guide hinge assemblies; An arc-shaped groove (9) is formed on the upper end of an L-shaped plate (8); A rectangular rod (10) has its sidewalls slidably connected to the inner wall of an arc-shaped groove (9); The side wall of the rotating shaft (11) is rotatably connected to the side wall of the rectangular rod (10) located in the arc groove (9); A clamping mechanism for clamping automotive parts, the clamping mechanism being rotatably connected to the side wall of the rotating shaft (11) away from the rectangular rod (10); A clamping mechanism for abutting and fitting two automotive parts together, the clamping mechanism comprising: Two Z-shaped plates (17) are fixedly connected to the bottom of the frame (1), and the two Z-shaped plates (17) are located on the outside of the two conveyor belts (6); Two first wedge plates (18) are fixedly connected to the side walls of two Z-shaped plates (17) that are close to each other; Two second wedge plates (19) are connected to the side walls of two opposite rectangular rods (10) via elastic mechanisms.

2. The automotive parts processing equipment according to claim 1, characterized in that, The conveying mechanism includes four L-shaped brackets (3) fixedly connected to the side wall of the frame (1). Conveying rollers (4) are rotatably installed on the side walls of two adjacent L-shaped brackets (3). The outer side walls of the two conveying rollers (4) are in contact with the inner side walls of the two conveyor belts (6). A first motor (7) that drives one of the conveying rollers (4) to rotate is fixedly connected to the side wall of one of the L-shaped brackets (3).

3. The automotive parts processing equipment according to claim 2, characterized in that, The clamping mechanism includes a movable cylinder (12) rotatably connected to the side wall of the rotating shaft (11) away from the rectangular rod (10). The side wall of the movable cylinder (12) is clearance-fitted with the inner wall of the arc groove (9). A bolt (13) is threaded through the top of the movable cylinder (12). An arc-shaped clamping plate (14) is rotatably connected to the side wall of the bolt (13) inside the movable cylinder (12).

4. The automotive parts processing equipment according to claim 1, characterized in that, The elastic mechanism includes a fixed plate (15) fixedly connected to one end of the rectangular rod (10) away from the pivot (11). The side wall of the fixed plate (15) is elastically connected to the side wall of its corresponding L-shaped plate (8) by a plurality of springs (16). The side wall of the fixed plate (15) away from the springs (16) is fixedly connected to the side wall of its corresponding second wedge plate (19).

5. The automotive parts processing equipment according to claim 1, characterized in that, An opening groove (20) is provided at the bottom of the arc groove (9) near the inner wall of the frame (1). The opening groove (20) is located near the rectangular rod (10). The rotating shaft (11) is fixedly connected to the side wall of the opening groove (20) with a first gear (21).

6. The automotive parts processing equipment according to claim 5, characterized in that, Two electric slide rails (22) are fixedly connected to the bottom of the frame (1). The side walls of the two electric slide rails (22) are slidably connected to a folding plate (23) via a slider. A second motor (24) is fixedly connected to the side wall of the folding plate (23). A second gear (25) is fixedly connected to the side wall of the movable shaft of the second motor (24).

7. The automotive parts processing equipment according to claim 1, characterized in that, A vertical rod (26) is rotatably connected through the bottom of the frame (1). The vertical rod (26) is fixedly connected to a number of brush bristles (27) on the side wall between the two conveyor belts (6). A third motor (28) for driving the vertical rod (26) to rotate is fixedly connected to the lower end of the frame (1). A dust suction hood (29) is installed on the top of the frame (1). The dust suction hood (29) is close to the welding head (2) and the number of brush bristles (27).

8. The automotive parts processing equipment according to claim 1, characterized in that, A controller (5) is fixedly installed on the top of the frame (1).

9. The automotive parts processing equipment according to claim 1, characterized in that, The adjustment mechanism includes a fixed frame (30) fixedly connected to the bottom of the frame (1). A first electric push rod (31) is fixedly connected to the upper end of the fixed frame (30). A first adjustment plate (32) is fixedly connected to the output end of the first electric push rod (31). A second electric push rod (33) is fixedly connected to the lower end of the first adjustment plate (32) through a support plate. A second adjustment plate (34) is fixedly connected to the output end of the second electric push rod (33). An angle adjustment plate (35) is rotatably installed on the side wall of the second adjustment plate (34). The welding head (2) is snapped onto the angle adjustment plate (35).

10. An automotive parts processing equipment according to claim 9, characterized in that, The side wall of the fixed frame (30) is equipped with two first guide rails, and the side walls of the two first guide rails are slidably connected to the side wall of the first adjusting plate (32). The lower end of the first adjusting plate (32) is equipped with two second guide rails, and the side walls of the two second guide rails are slidably connected to the side wall of the second adjusting plate (34).

Citation Information

Patent Citations

  • Automobile part welding device

    CN107717289A

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    CN121972890A

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    CN213380018U