Diaphragm type energy accumulator laser welding device
By introducing a Z-shaped motion platform and positioning structure into the diaphragm accumulator laser welding device, the problems of accumulator displacement and falling during the welding process were solved, achieving stable clamping and precise welding, and improving welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKE OUKE HYDRAULIC (TAIZHOU) CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-08
AI Technical Summary
The existing diaphragm accumulator welding device has poor clamping effect, which makes the accumulator easy to shift or fall off during the welding process, affecting the welding quality.
The system employs a Z-shaped motion platform and an accumulator positioning structure, including positioning plates and adjustable arc-shaped clamps around the chuck. Combined with the three-dimensional motion platform, it enables precise movement along the X, Y, and Z axes, ensuring stable clamping and accurate welding of the accumulator.
This improves the stability and precision of laser welding of accumulators, avoids accumulator displacement and drop during welding, and enhances welding results.
Smart Images

Figure CN224209276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage processing technology, specifically to a laser welding device for diaphragm energy storage. Background Technology
[0002] A diaphragm accumulator is an energy storage device in a hydraulic and pneumatic system. It mainly consists of two shells welded together and sealed. It uses a high-energy-density laser beam as a heat source to locally heat the material, achieving rapid melting and connection of the material. The two hemispherical shells are connected together by welding to form a sealed container.
[0003] The prior art, disclosed in patent publication number CN222037324U, presents the following technical solution: a diaphragm accumulator welding device, comprising a welding table and a fixing frame; a fixing frame is provided on one side of the top of the welding table, a moving component is provided on the top of the fixing frame, a cylinder is provided at the bottom of the moving component, and a welding gun is provided on one side of the cylinder; a clamping structure is provided on the top of the welding table, and a heat dissipation structure is provided at the front end of the clamping structure, which can clamp the accumulator during welding and move as it is moved around the outside of the screw, thereby clamping accumulators of different sizes.
[0004] The chuck structure of the above technical solution is simple, and the clamping effect on the accumulator is average. In addition, the fixed plate can only provide squeezing force on the other half of the accumulator. Due to its own weight, the accumulator is easy to shift or fall off. The positioning and clamping effect is average, which affects the subsequent laser welding. Utility Model Content
[0005] The purpose of this invention is to provide a laser welding device for diaphragm accumulators to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a diaphragm accumulator laser welding device, including a worktable, on which a Z-shaped motion platform is mounted, and accumulator positioning structures are mounted at both ends of the Z-shaped motion platform, one end being fixed and the other end being movable.
[0007] The accumulator positioning structure includes chucks, with support plates distributed circumferentially on one side of the two chucks facing each other. Each support plate has a positioning plate on its inner side. The length of the lower support plate and positioning plate along the axis is greater than the length of the other three support plates and positioning plates along the axis. The upper support plate and the outer sides of the front and rear support plates are all fixedly connected to L-shaped plates. Each L-shaped plate is threaded with a screw. The output end of the screw is movably connected to an arc-shaped clamping plate. Each arc-shaped clamping plate has an anti-slip pad on its inner side.
[0008] In the above technical solution, positioning plates are set around the chuck, and the lower positioning plate is longer to support and position the accumulator. Adjustable arc-shaped clamps are set on the top and sides to further clamp and fix the accumulator, ensuring the stability of the accumulator in the chuck.
[0009] As a further preferred embodiment of this technical solution, a bracket is installed on the rear side of the workbench, an XY-type motion platform is installed on the upper end of the bracket, and a laser welding unit is installed on the front end of the XY-type motion platform.
[0010] In the above technical solution, a three-dimensional motion platform is set up to achieve precise movement along the X, Y, and Z axes, thereby improving the effect of laser welding of the accumulator.
[0011] As a further preferred embodiment of this technical solution, an accumulator is clamped and installed on the inner side of the positioning structure at both ends, and the bottom side of the accumulator is supported on the positioning plate below.
[0012] As a further preferred embodiment of this technical solution, mounting slots are provided at both the front and rear ends of one side of the Z-shaped motion platform. A threaded rod is provided in the mounting slot on the front side, and a guide rod is fixedly connected in the mounting slot on the rear side. A motor is installed at one end of the outer side of the threaded rod, and movable blocks are sleeved on the outer walls of both the threaded rod and the guide rod.
[0013] As a further preferred embodiment of this technical solution, the Z-shaped motion platform has sliding grooves on both the front and rear sides of the middle section, and sliding blocks are slidably connected in each sliding groove. A vertical plate is fixedly connected to the upper end of each sliding block, and connecting plates are fixedly connected to the outer walls of the front and rear sides of each vertical plate. The bottom side of the connecting plate is connected to the movable block.
[0014] In the above technical solution, a movable accumulator positioning structure is set on one side of the Z-shaped motion platform, which can close the two semi-circular accumulators together during welding, making it convenient to perform laser welding on the connection point later.
[0015] As a further preferred embodiment of this technical solution, the rotating shaft above the upright plate is connected to one of the chucks.
[0016] As a further preferred embodiment of this technical solution, a motor is installed at another chuck shaft for rotating the accumulator.
[0017] This utility model provides a laser welding device for diaphragm accumulators, which has the following beneficial effects:
[0018] (1) This utility model provides positioning plates around the chuck, with the lower positioning plate being longer, which can support and position the accumulator. Adjustable arc-shaped clamps are provided on the top and sides to further clamp and fix the accumulator, ensuring the stability of the accumulator in the chuck and preventing it from falling or shifting during the welding process, thus affecting the welding effect.
[0019] (2) This utility model achieves precise movement of the X, Y and Z axes by setting up a three-dimensional motion platform, which improves the effect of laser welding of the accumulator. In addition, a movable accumulator positioning structure is set on one side of the Z-shaped motion platform, which can close the two semi-circular accumulators together during welding, making it convenient to perform laser welding on the connection point later. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the accumulator positioning structure adjustment of this utility model;
[0022] Figure 3 This is a schematic diagram of the energy storage positioning structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the Z-shaped motion platform of this utility model;
[0024] In the diagram: 1. Workbench; 2. Support frame; 3. XY type motion platform; 4. Laser welding unit; 5. Z type motion platform; 51. Mounting slot; 52. Sliding slot; 53. Threaded rod; 54. Sliding block; 55. Vertical plate; 56. Connecting plate; 57. Guide rod; 6. Accumulator positioning structure; 61. Chuck; 62. Support plate; 63. Positioning plate; 64. L-shaped plate; 65. Screw; 66. Arc-shaped clamp; 67. Anti-slip pad; 7. Accumulator. Detailed Implementation
[0025] 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.
[0026] This utility model provides a technical solution: such as Figure 1 As shown, in this embodiment, the diaphragm accumulator laser welding device includes a worktable 1, on which a Z-shaped motion platform 5 is installed. Accumulator positioning structures 6 are installed at both ends of the Z-shaped motion platform 5, one end being fixed and the other end being movable. A bracket 2 is installed on the rear side of the worktable 1, and an XY-shaped motion platform 3 is installed on the upper end of the bracket 2. By setting up a three-dimensional motion platform, precise movement along the X, Y, and Z axes is achieved, improving the laser welding effect of the accumulator. A laser welding unit 4 is installed at the front end of the XY-shaped motion platform 3.
[0027] like Figure 2 and Figure 4 As shown, mounting slots 51 are provided at both the front and rear ends of one side of the Z-shaped motion platform 5. A threaded rod 53 is provided in the front mounting slot 51, and a guide rod 57 is fixedly connected in the rear mounting slot 51. A motor is installed at one end of the outer side of the threaded rod 53. Movable blocks are sleeved on the outer walls of both the threaded rod 53 and the guide rod 57. Sliding slots 52 are provided on both the front and rear sides of the middle of the Z-shaped motion platform 5. Sliding blocks 54 are slidably connected in the sliding slots 52. A vertical plate 55 is fixedly connected to the upper end of the sliding block 54. A connecting plate 56 is fixedly connected to the outer walls of both the front and rear sides of the vertical plate 55. The bottom side of the connecting plate 56 is connected to the movable block. The rotating shaft above the vertical plate 55 is connected to a chuck 61. A movable accumulator positioning structure 6 is provided on one side of the Z-shaped motion platform 3, which can close the two semi-circular accumulators together during welding, facilitating subsequent laser welding of the connection.
[0028] like Figure 2 and Figure 3 As shown, the accumulator positioning structure 6 includes a chuck 61, which is a prior art technology and consists of three parts: a chuck body, movable jaws, and a jaw drive mechanism. A motor is installed at the shaft of another chuck 61 for rotating the accumulator. The motor model is YBX3. Support plates 62 are distributed circumferentially on the opposite side of the two chucks 61. Positioning plates 63 are provided on the inner side of each support plate 62. The axial length of the lower support plate 62 and positioning plate 63 is greater than the axial length of the other three support plates 62 and positioning plates 63. L-shaped plates are fixedly connected to the outer sides of the upper support plate 62 and the front and rear support plates 62. 64. Each L-shaped plate 64 is threaded with a screw 65. The output end of the screw 65 is movably connected to an arc-shaped clamping plate 66. The inner side of each arc-shaped clamping plate 66 is provided with anti-slip rubber pads 67. The inner side of each end of the accumulator positioning structure 6 clamps and installs an accumulator 7. The bottom side of the accumulator 7 is supported on the lower positioning plate 63. By setting positioning plates 63 around the chuck 61, and the lower positioning plate 63 being longer, the accumulator can be supported and positioned. The adjustable arc-shaped clamping plates 66 on the top and sides can further clamp and fix the accumulator, ensuring the stability of the accumulator in the chuck 61 and preventing it from falling or shifting during the welding process, which would affect the welding effect.
[0029] This utility model provides a diaphragm-type accumulator laser welding device. The specific working principle is as follows: Half of the accumulator is placed inside the chuck 61. The accumulator is positioned by the surrounding positioning plates 63, which, being longer, support the accumulator. Then, the screws 65 on the top and front / rear sides are rotated, causing the arc-shaped clamping plates 66 to move outwards until the accumulator is clamped. Anti-slip pads 67 further enhance the clamping and fixing effect, preventing the accumulator from falling or shifting out of the chuck 61. Next, the motor at one end of the threaded rod 53 is started, driving the threaded rod 53 to rotate, causing the movable blocks on the threaded rod 53 and guide rod 57 to move. Simultaneously, the sliding block 54 slides within the sliding groove 52 until the two accumulators are connected together. During welding, the X, Y, and Z axes are adjusted by the control module, enabling the laser welding unit 4 to perform laser welding on the accumulator connection. During welding, a flipping motor can be activated to flip the accumulator until welding is complete.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A diaphragm accumulator laser welding device, comprising a worktable (1), characterized in that: The workbench (1) is equipped with a Z-shaped motion platform (5), and both ends of the Z-shaped motion platform (5) are equipped with accumulator positioning structures (6), one end of which is fixed and the other end is movable. The accumulator positioning structure (6) includes a chuck (61). Support plates (62) are distributed circumferentially on one side of the two chucks (61). Positioning plates (63) are provided on the inner side of each support plate (62). The length of the axis of the lower support plate (62) and positioning plate (63) is greater than the length of the axis of the other three support plates (62) and positioning plates (63). L-shaped plates (64) are fixedly connected to the outer sides of the upper support plate (62) and the support plates (62) on the front and rear sides. Screws (65) are threaded onto each L-shaped plate (64). Arc-shaped clamps (66) are movably connected to the output end of each screw (65). Anti-slip pads (67) are provided on the inner side of each arc-shaped clamp (66).
2. The laser welding device for diaphragm accumulators according to claim 1, characterized in that: A bracket (2) is installed on the rear side of the workbench (1), an XY type motion platform (3) is installed on the upper end of the bracket (2), and a laser welding unit (4) is installed on the front end of the XY type motion platform (3).
3. The laser welding device for diaphragm accumulators according to claim 1, characterized in that: Energy accumulators (7) are clamped and installed on the inner side of the energy accumulator positioning structure (6) at both ends, and the bottom side of the energy accumulators (7) is supported on the lower positioning plate (63).
4. The laser welding device for diaphragm accumulators according to claim 1, characterized in that: The Z-shaped motion platform (5) has mounting slots (51) at both the front and rear ends on one side. A threaded rod (53) is provided in the mounting slot (51) on the front side, and a guide rod (57) is fixedly connected in the mounting slot (51) on the rear side. A motor is installed at one end of the threaded rod (53), and movable blocks are sleeved on the outer walls of both the threaded rod (53) and the guide rod (57).
5. The laser welding device for diaphragm accumulators according to claim 1, characterized in that: The Z-shaped motion platform (5) has sliding grooves (52) on both the front and rear sides in the middle. Sliding blocks (54) are slidably connected in the sliding grooves (52). A vertical plate (55) is fixedly connected to the upper end of the sliding block (54). A connecting plate (56) is fixedly connected to the outer wall of the front and rear sides of the vertical plate (55). The bottom side of the connecting plate (56) is connected to the movable block.
6. The laser welding apparatus for diaphragm accumulators according to claim 5, characterized in that: The pivot above the upright plate (55) is connected to a chuck (61).
7. The laser welding device for diaphragm accumulators according to claim 1, characterized in that: Another chuck (61) has a motor mounted on its shaft for flipping the accumulator.
Citation Information
Patent Citations
Diaphragm type energy accumulator welding device
CN222037324U