A bottom cover spring disc welding device
By integrating welding modules, two-jaw positioning, and clamping rotation mechanisms, the problem of dispersion in spring disc welding and end bracket welding is solved, achieving integrated welding with precise positioning, stable clamping, and synchronous rotation, thus improving welding quality and efficiency.
Patent Information
- Application Number
- CN202611479718.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-22
- Publication Date
- 2026-11-06
AI Technical Summary
In the existing technology, the welding processes of spring disc and end bracket are scattered, resulting in low production efficiency. Furthermore, the spring disc lacks effective positioning support, the outer cylinder has insufficient rotational stability, the welding start position is not fixed, and it is difficult to control the overlap of the circumferential weld.
Design a bottom cover spring plate welding equipment that integrates a welding module mechanism, a two-jaw positioning mechanism, and a clamping and rotating mechanism on the same base. Through the cooperation of two-jaw cylinders and three-jaw cylinders, the accurate positioning of the spring plate and the stable clamping and synchronous rotation of the outer cylinder are achieved. Combined with a robotic arm, the end bracket is welded.
This technology enables the integrated operation of precise positioning, stable clamping, and synchronous rotation of the spring disc welding process, improving welding quality and efficiency. It also solves the problems of insufficient rotational stability of the outer cylinder and inconsistent starting position, ensuring consistent welding quality of the circumferential weld.
Smart Images
Figure CN123039700A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of shock absorber processing, and more specifically, to a bottom cover spring disc welding device. Background Technology
[0002] In the manufacturing process of automotive shock absorbers, a spring disc needs to be welded to the middle of the outer cylinder, and a bracket for connecting to the vehicle body needs to be welded to the end of the outer cylinder. Currently, these two welding processes usually need to be completed step by step on different specialized equipment. The workpiece needs to be transferred and clamped multiple times between different equipment. The decentralized process leads to a longer production cycle and a large equipment footprint, making it difficult to meet the needs of large-scale production.
[0003] The existing spring disc welding equipment still has the following specific technical defects: after the spring disc is sleeved on the outer cylinder, it lacks effective positioning support, making it difficult to accurately fix it in the predetermined welding position on the outer cylinder. During welding, the spring disc is prone to displacement or tilting. When the outer cylinder is circumferentially welded under rotational drive, its upper end lacks an independent auxiliary positioning mechanism, resulting in insufficient rotational stability of the outer cylinder's overhanging part. At the same time, the starting position of the outer cylinder's rotation lacks constraints, the arc starting point is not fixed for each welding, and the overlap of the circumferential weld is difficult to control within the ideal range.
[0004] In summary, there is an urgent need in this field for an integrated device that can simultaneously complete the welding of spring discs and end brackets on a single machine. Summary of the Invention
[0005] The purpose of this invention is to provide a bottom cover spring disc welding equipment, which solves the technical problems in the prior art that there is no integrated equipment that can simultaneously complete the welding of the spring disc and the welding of the end bracket on one machine, resulting in scattered processes, low efficiency, and the accumulation of positioning errors caused by multiple clamping. At the same time, it solves the problems of lack of effective positioning support, insufficient rotational stability of the outer cylinder, and difficulty in adjusting the welding gun angle during the spring disc welding process.
[0006] To achieve the above objectives, the present invention provides a bottom cover spring plate welding device, which includes a welding module mechanism, a two-jaw positioning mechanism, and a clamping and rotating mechanism respectively disposed on a base. The welding module mechanism includes a linear module assembly and a first welding torch disposed at the output end of the linear module assembly; The two-claw positioning mechanism includes a first housing, a telescopic cylinder and a positioning cylinder respectively disposed in the first housing, a two-claw cylinder connected to the output end of the telescopic cylinder, and a positioning block connected to the output end of the positioning cylinder; the inner wall of the claw head of the two-claw cylinder is rotatably provided with a positioning wheel. The clamping and rotating mechanism includes a second housing, a rotating drive assembly disposed within the second housing, a three-jaw cylinder connected to the output end of the rotating drive assembly, and a mold base rotatably disposed at the end of the second housing. The three-jaw cylinder is connected to the mold base via a connecting rod.
[0007] Preferably, the linear module assembly includes a vertical linear module fixed on the base and a horizontal linear module connected to the output end of the vertical linear module; The output end of the horizontal linear module is connected to a mounting bracket, and the first welding torch is mounted on the mounting bracket.
[0008] Preferably, a chassis is connected to the mounting bracket, a rotating disk is rotatably provided on the surface of the chassis, a screw is fixed on the chassis, an arc-shaped groove is formed on the surface of the rotating disk, the screw passes through the arc-shaped groove and is tightened with a locking nut, and the first welding torch is locked on the surface of the rotating disk by a clamping fixture.
[0009] Preferably, the first housing is further provided with an adjusting linear module, and the output end of the adjusting linear module is fixed with a slide block; the telescopic cylinder and the positioning cylinder are both disposed on the slide block.
[0010] Preferably, the inner walls of the two claws of the two-claw cylinder are formed with grooves, and two positioning wheels are spaced apart in the grooves, with the positioning wheels extending at least partially out of the grooves.
[0011] Preferably, a slide rail is fixed on the slide block, a slider is provided on the slide rail, and the two-claw cylinder is fixed on the slider.
[0012] Preferably, the rotary drive assembly includes a servo motor, an electric slip ring, and a pneumatic slip ring connected in sequence. The output end of the servo motor is connected to the rotor of the electric slip ring, the rotor of the electric slip ring is connected to the rotor of the pneumatic slip ring, and the output end of the pneumatic slip ring is connected to the three-jaw cylinder.
[0013] Preferably, a sliding seat is slidably disposed inside the second housing, and the rotary drive assembly is disposed on the sliding seat; a lifting electric cylinder is fixed on the second housing, and the output end of the lifting electric cylinder is connected to the sliding seat.
[0014] Preferably, a linear slide rail is fixed inside the second housing, and a slider that cooperates with the linear slide rail is provided on the sliding seat.
[0015] Preferably, a robotic arm is also provided on the base, and the output end of the robotic arm is connected to a second welding torch.
[0016] This invention provides a bottom cover spring disc welding device. During operation, the outer cylinder of the shock absorber passes through the mold base and is inserted into the second housing. A three-jaw cylinder clamps the outer cylinder from the inside, ensuring concentricity and stability of the clamping. The spring disc is sleeved on the outer cylinder and directly engaged with the mold base, achieving accurate positioning and support of the spring disc and preventing it from shifting or tilting during welding. A rotary drive assembly drives the three-jaw cylinder to rotate, which in turn drives the mold base and the spring disc engaged thereon to rotate synchronously via a connecting rod, achieving integrated synchronous rotation of the outer cylinder and the spring disc. Simultaneously, in the two-jaw positioning mechanism, a telescopic cylinder drives the two-jaw cylinder to move to both sides of the outer cylinder, and the two-jaw cylinder clamps, causing the positioning wheel on the inner wall of the jaws to contact the outer cylinder, allowing the outer cylinder to rotate freely around its own axis while being clamped and positioned. Initially, the positioning block is in the extended state. When placing the outer cylinder, the bracket connecting lug at the end of the outer cylinder engages with the positioning block to ensure the starting position of rotation. After the positioning block resets, the outer cylinder can begin to rotate and weld. During welding, the linear module assembly moves the first welding torch to the welding position between the spring plate and the outer cylinder, coordinating with the synchronous rotation of the outer cylinder and the spring plate to complete the continuous circular welding. Furthermore, by further installing a robotic arm and a second welding torch on the base, the second welding torch can be used to simultaneously weld the support at the end of the outer cylinder.
[0017] This invention integrates the welding module mechanism, the two-jaw positioning mechanism, and the clamping and rotating mechanism onto the same base, achieving a unified operation of precise positioning, stable clamping, and synchronous rotation welding of the spring disc on the outer cylinder, effectively improving the quality and efficiency of spring disc welding. Simultaneously, the two-jaw positioning mechanism solves the problems of insufficient stability of the outer cylinder's overhanging portion during rotation, lack of constraint on the rotation starting position, and inconsistent arc starting point, further ensuring the consistency of welding quality for the circumferential weld.
[0018] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a result diagram of the bottom cover spring disc welding equipment provided by the present invention; Figure 2 This is a structural diagram of the welding module mechanism in the bottom cover spring disc welding equipment provided by the present invention; Figure 3 This is a side view of the welding module mechanism in the bottom cover spring disc welding equipment provided by the present invention; Figure 4 This is a structural diagram of the two-claw positioning mechanism in the bottom cover spring disc welding equipment provided by the present invention; Figure 5 This is a structural diagram of the clamping and rotating mechanism in the bottom cover spring disc welding equipment provided by the present invention.
[0020] Explanation of reference numerals in the attached figures 1-Base; 2-Welding module mechanism; 21-Vertical linear module; 22-Horizontal linear module; 23-Mounting frame; 24-Chassis; 25-Screw; 26-First welding torch; 27-Clamping fixture; 28-Rotating disc; 3-Two-jaw positioning mechanism; 31-First housing; 32-Adjusting linear module; 33-Slide seat; 34-Slide rail; 35-Telescopic cylinder; 36-Positioning cylinder; 37-Positioning block; 38-Two-jaw cylinder; 310-Positioning wheel; 4-Clamping rotation mechanism; 41-Second housing; 42-Lifting electric cylinder; 43-Slide seat; 44-Servo motor; 45-Electric slip ring; 46-Pneumatic slip ring; 47-Three-jaw cylinder; 48-Linear slide rail; 49-Contouring mold base; 410-Connecting rod; 5-Mechanical arm; 6-Second welding torch. Detailed Implementation
[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0022] like Figure 1-5As shown: This invention provides a bottom cover spring disc welding device, which includes a welding module mechanism 2, a two-jaw positioning mechanism 3, and a clamping rotation mechanism 4, all respectively mounted on a base 1. The welding module mechanism 2 includes a linear module assembly and a first welding torch 26 disposed at the output end of the linear module assembly. The two-jaw positioning mechanism 3 includes a first housing 31, a telescopic cylinder 35 and a positioning cylinder 36 respectively disposed within the first housing 31, a two-jaw cylinder 38 connected to the output end of the telescopic cylinder 35, and a positioning block 37 connected to the output end of the positioning cylinder 36. A positioning wheel 310 is rotatably disposed on the inner wall of the jaw of the two-jaw cylinder 38. The clamping rotation mechanism 4 includes a second housing 41, a rotation drive assembly disposed within the second housing 41, a three-jaw cylinder 47 connected to the output end of the rotation drive assembly, and a contour mold base 49 rotatably disposed at the end of the second housing 41. The three-jaw cylinder 47 is connected to the contour mold base 49 via a connecting rod 410. During operation, the outer cylinder of the shock absorber passes through the mold base and is inserted into the second housing. The three-jaw cylinder clamps the outer cylinder from the inside, ensuring concentricity and stability of the clamping. The spring disc is sleeved on the outer cylinder and directly engaged with the mold base, achieving accurate positioning and support of the spring disc and preventing it from shifting or tilting during welding. The rotary drive assembly drives the three-jaw cylinder to rotate, which in turn drives the mold base and the spring disc engaged with it to rotate synchronously through the connecting rod, achieving integrated synchronous rotation of the outer cylinder and the spring disc. Meanwhile, in the two-jaw positioning mechanism, the telescopic cylinder drives the two-jaw cylinder to move to both sides of the outer cylinder. The two-jaw cylinder clamps, causing the positioning wheel on the inner wall of the jaw to contact the outer cylinder, allowing the outer cylinder to rotate freely around its own axis while being clamped and positioned. Initially, the positioning block is in the extended state. When placing the outer cylinder, the bracket connecting lug at the end of the outer cylinder engages with the positioning block to ensure the starting position of rotation. After the positioning block resets, the outer cylinder can begin to rotate and weld. The bracket here is a cylindrical structure with two connecting lugs spaced apart on its side. The bracket is pre-pressed onto the end of the outer cylinder using a press-fit process before welding. During welding, the linear module assembly moves the first welding torch to the welding position between the spring plate and the outer cylinder, coordinating with the synchronous rotation of the outer cylinder and the spring plate to complete the continuous circular welding. In addition, by further setting a robotic arm and a second welding torch on the base, the second welding torch can be used to simultaneously weld the bracket at the end of the outer cylinder. This invention integrates the welding module mechanism, the two-jaw positioning mechanism, and the clamping and rotating mechanism onto the same base, achieving a unified operation of precise positioning, stable clamping, and synchronous rotation welding of the spring disc on the outer cylinder, effectively improving the quality and efficiency of spring disc welding. Simultaneously, the two-jaw positioning mechanism solves the problems of insufficient stability of the outer cylinder's overhanging portion during rotation, lack of constraint on the rotation starting position, and inconsistent arc starting point, further ensuring the consistency of welding quality for the circumferential weld.
[0023] In a preferred embodiment of the present invention, the linear module assembly includes a vertical linear module 21 fixed on a base 1 and a horizontal linear module 22 connected to the output end of the vertical linear module 21; the output end of the horizontal linear module 22 is connected to a mounting bracket 23, and the first welding torch 26 is mounted on the mounting bracket 23. Through the dual-axis linkage of the vertical and horizontal linear modules, the first welding torch can move flexibly in the vertical and horizontal directions, accurately reaching welding points at different heights and horizontal positions, thus meeting the positioning requirements of the spring disc welding position on the outer cylinder of shock absorbers of different specifications.
[0024] In a preferred embodiment of the present invention, a base 24 is connected to the mounting bracket 23, and a rotating disk 28 is rotatably mounted on the surface of the base 24. A screw 25 is fixed on the base 24, and an arc-shaped groove is formed on the surface of the rotating disk 28. The screw 25 passes through the arc-shaped groove and is engaged with a locking nut. The first welding torch 26 is locked to the surface of the rotating disk 28 by a clamping fixture 27. The first welding torch can flexibly adjust its angle with the rotating disk to adapt to the welding angle requirements of different types of spring disks, effectively avoiding interference between the welding torch and the workpiece or fixture when approaching the welding point. By using the screw to pass through the arc-shaped groove and engage with the locking nut for locking, rapid fixation after angle adjustment is achieved, ensuring the stability of the welding torch angle during the welding process.
[0025] In a preferred embodiment of the present invention, an adjusting linear module 32 is further provided on the first housing 31, and a slide block 33 is fixed to the output end of the adjusting linear module 32; the telescopic cylinder 35 and the positioning cylinder 36 are both disposed on the slide block 33. This structure can drive the slide block to move according to different outer cylinder specifications to adjust the positions of the positioning cylinder 36 and the two-jaw cylinder 38, thereby improving the adaptability of the equipment to different types of workpieces.
[0026] In a preferred embodiment of the present invention, the inner walls of the two claws of the two-claw cylinder 38 are each formed with a groove, and two positioning wheels 310 are spaced apart within the groove, with each positioning wheel 310 extending at least partially out of the groove. By providing two positioning wheels on each inner wall of the two claws, a four-point contact support structure is formed, increasing the number of contact points between the claws and the outer cylinder, making the force on the outer cylinder more uniform during rotation, and further improving the support stability and rotational coaxiality of the upper end of the outer cylinder.
[0027] In a preferred embodiment of the present invention, in order to limit the displacement of the two-claw cylinder 38, a slide rail 34 is fixed on the slide block 33, a slider is provided on the slide rail 34, and the two-claw cylinder 38 is fixed on the slider.
[0028] In a preferred embodiment of the present invention, the rotary drive assembly includes a servo motor 44, an electric slip ring 45, and a pneumatic slip ring 46 connected in sequence. The output end of the servo motor 44 is connected to the rotor of the electric slip ring 45, the rotor of the electric slip ring 45 is connected to the rotor of the pneumatic slip ring 46, and the output end of the pneumatic slip ring 46 is connected to the three-jaw cylinder 47. By coaxially and sequentially connecting the servo motor, electric slip ring, and pneumatic slip ring, the servo motor precisely controls the rotation angle and speed; the electric slip ring stably transmits electrical signals to the rotating end during rotation, ensuring uninterrupted power supply and control signals; the pneumatic slip ring stably transmits compressed air to the rotating end during rotation, continuously supplying air to the three-jaw cylinder, ensuring that the three-jaw cylinder maintains a stable clamping force during continuous rotation, while preventing air pipe twisting and entanglement. The three components work together to achieve integrated continuous operation of clamping, rotation, and welding.
[0029] In a preferred embodiment of the present invention, a sliding seat 43 is slidably disposed within the second housing 41, and the rotary drive assembly is disposed on the sliding seat 43; a lifting electric cylinder 42 is fixed on the second housing 41, and the output end of the lifting electric cylinder 42 is connected to the sliding seat 43. The lifting electric cylinder 42 can adjust the position of the entire rotary drive assembly, and according to different welding requirements, change the relative position of the spring plate on the mold base and the outer cylinder to adapt to the welding requirements of shock absorber outer cylinders of different specifications.
[0030] In a preferred embodiment of the present invention, in order to limit the displacement of the sliding seat 43, a linear slide rail 48 is fixed inside the second housing 41, and a slider that cooperates with the linear slide rail 48 is provided on the sliding seat 43.
[0031] In a preferred embodiment of the present invention, a robotic arm 5 is further provided on the base 1, and a second welding torch 6 is connected to the output end of the robotic arm 5. By further providing a robotic arm and a second welding torch on the base, the second welding torch can be used to simultaneously weld the support at the end of the outer cylinder.
[0032] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.
[0034] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.
Claims
1. A bottom cover spring disc welding device, characterized in that, The bottom cover spring plate welding equipment includes a welding module mechanism (2), a two-jaw positioning mechanism (3), and a clamping and rotating mechanism (4) respectively set on the base (1); The welding module mechanism (2) includes a linear module assembly and a first welding torch (26) disposed at the output end of the linear module assembly. The two-claw positioning mechanism (3) includes a first housing (31), a telescopic cylinder (35) and a positioning cylinder (36) respectively disposed in the first housing (31), a two-claw cylinder (38) connected to the output end of the telescopic cylinder (35), and a positioning block (37) connected to the output end of the positioning cylinder (36); the inner wall of the claw head of the two-claw cylinder (38) is rotatably provided with a positioning wheel (310); The clamping and rotating mechanism (4) includes a second housing (41), a rotating drive assembly disposed in the second housing (41), a three-jaw cylinder (47) connected to the output end of the rotating drive assembly, and a mold base (49) rotatably disposed at the end of the second housing (41). The three-jaw cylinder (47) is connected to the mold base (49) via a connecting rod (410).
2. The bottom cover spring disc welding equipment according to claim 1, characterized in that, The linear module assembly includes a vertical linear module (21) fixed on the base (1) and a horizontal linear module (22) connected to the output end of the vertical linear module (21). The output end of the horizontal linear module (22) is connected to a mounting bracket (23), and the first welding torch (26) is mounted on the mounting bracket (23).
3. The bottom cover spring disc welding equipment according to claim 2, characterized in that, The mounting bracket (23) is connected to a chassis (24), and a rotating disk (28) is rotatably mounted on the surface of the chassis (24). A screw (25) is fixed on the chassis (24), and an arc-shaped groove is formed on the surface of the rotating disk (28). The screw (25) passes through the arc-shaped groove and is tightened with a locking nut. The first welding torch (26) is locked to the surface of the rotating disk (28) by a clamping fixture (27).
4. The bottom cover spring disc welding equipment according to claim 1, characterized in that, The first housing (31) is also provided with an adjustment linear module (32), and the output end of the adjustment linear module (32) is fixed with a slide (33); the telescopic cylinder (35) and the positioning cylinder (36) are both provided on the slide (33).
5. The bottom cover spring disc welding equipment according to claim 4, characterized in that, The inner walls of the two claws of the two-claw cylinder (38) are formed with grooves, and two positioning wheels (310) are arranged at intervals in the grooves. The positioning wheels (310) extend at least partially out of the grooves.
6. The bottom cover spring disc welding equipment according to claim 4, characterized in that, A slide rail (34) is fixed on the slide block (33), and a slider is provided on the slide rail (34). The two-claw cylinder (38) is fixed on the slider.
7. The bottom cover spring disc welding equipment according to claim 1, characterized in that, The rotary drive assembly includes a servo motor (44), an electric slip ring (45), and a pneumatic slip ring (46) connected in sequence. The output end of the servo motor (44) is connected to the rotor of the electric slip ring (45), the rotor of the electric slip ring (45) is connected to the rotor of the pneumatic slip ring (46), and the output end of the pneumatic slip ring (46) is connected to the three-jaw cylinder (47).
8. The bottom cover spring disc welding equipment according to claim 7, characterized in that, A sliding seat (43) is slidably disposed inside the second housing (41), and the rotary drive assembly is disposed on the sliding seat (43); a lifting electric cylinder (42) is fixed on the second housing (41), and the output end of the lifting electric cylinder (42) is connected to the sliding seat (43).
9. The bottom cover spring disc welding equipment according to claim 8, characterized in that, The second housing (41) is fixed with a linear slide rail (48), and the sliding seat (43) is provided with a slider that cooperates with the linear slide rail (48).
10. The bottom cover spring disc welding equipment according to claim 1, characterized in that, A robotic arm (5) is also provided on the base (1), and the output end of the robotic arm (5) is connected to a second welding torch (6).