An apparatus, method and application for the fabrication of an argon arc welding diaphragm accumulator
By designing an automated argon arc welding device, the problem of ensuring weld uniformity and consistency in manual welding has been solved, achieving an efficient and stable welding process and reducing labor costs and health risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEBEI JUNRAN HYDRAULIC EQUIP MFG CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-06-02
AI Technical Summary
In the existing technology, the welding of the diaphragm accumulator shell relies on manual operation, which makes it difficult to ensure the uniformity and consistency of the weld, resulting in defects such as porosity and incomplete penetration. This is inefficient and harmful to the health of operators.
Design a device for preparing an argon arc welding diaphragm accumulator. The device drives the argon arc welding torch to automatically rotate and weld along the annular weld seam through a rotating mechanism. Combined with an electric telescopic rod to adjust the position of the welding torch, the device achieves an automated welding process.
It improves welding quality, ensures uniform weld seams, reduces labor costs and labor intensity, and meets the needs of large-scale production.
Smart Images

Figure CN122125318A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welded diaphragm accumulator technology, and more particularly to an apparatus, method and application for preparing an argon arc welded diaphragm accumulator. Background Technology
[0002] Diaphragm accumulators are key energy storage components in hydraulic systems. They use an internal diaphragm to separate gas from liquid, enabling the storage and release of energy. These accumulators typically consist of two metal housings welded together, and the quality of the weld directly affects their sealing performance and service life.
[0003] Currently, in the production process of diaphragm accumulators, welding between the shells largely relies on manual operation. Workers need to manually align the two shells and use argon arc welding to weld the circumferential seam. However, manual welding has the following drawbacks: First, the welding process requires high stability of the welding torch, and manual operation makes it difficult to ensure the uniformity and consistency of the weld, easily resulting in defects such as porosity and incomplete penetration; second, manual welding is inefficient and cannot meet the needs of large-scale production; third, the arc light and fumes in the welding environment pose a certain threat to the health of operators.
[0004] Therefore, there is an urgent need for an automated device specifically designed for welding the casing of diaphragm accumulators, in order to improve welding quality and production efficiency, and reduce labor costs and labor intensity. Summary of the Invention
[0005] The purpose of this invention is to provide a device, method and application for preparing an argon arc welding diaphragm accumulator. By setting a rotating mechanism to drive the argon arc welding gun to automatically rotate and weld along the circumferential weld, only the initial assembly of the shell and diaphragm needs to be completed manually. The subsequent welding process is automatically controlled by the controller, making the operation simple.
[0006] To achieve the above objectives, the present invention provides a device for preparing an argon arc welding diaphragm accumulator, comprising a first shell, a second shell, a base, a fixed block, a movable block, a moving mechanism, an argon arc welding torch, and a rotating mechanism. The first shell is embedded in the fixed block, and the second shell is embedded in the movable block. The fixed block is fixed to the base by a support mechanism. The argon arc welding torch is connected to the rotating mechanism, and the movable block is disposed on the moving mechanism. The first shell and the second shell contain diaphragm bodies, and the joint of the first shell and the second shell is welded together by the argon arc welding torch.
[0007] Preferably, the rotating mechanism includes a motor, the output shaft of which is driven by a gear one, a bearing seat is fixed on the base, a hollow tube is rotatably connected inside the bearing seat, a gear two is fixedly connected to the outer wall of the hollow tube, the gear one and the gear two mesh and drive each other, a U-shaped frame is fixedly fixed to the outer wall of the hollow tube, and a ring is fixedly connected to the end of the U-shaped frame.
[0008] Preferably, the support mechanism includes a support column and a support block. One end of the support column is fixedly connected to the side wall of the fixed block, and the other end of the support column passes through the hollow tube and is fixed to the support block. The bottom of the support block is fixed to the base.
[0009] Preferably, an electric telescopic rod is fixedly connected to the inner wall of the ring, the movable end of the electric telescopic rod is fixed to the argon arc welding gun, and the welding end of the argon arc welding gun faces the center of the ring.
[0010] Preferably, the axis of the hollow tube, the axis of the support column, and the axis of the housing are all aligned with the center point of the ring.
[0011] Preferably, the argon arc welding gun is connected to a gas pipe and a welding wire, which are fixed at fixing point one and fixing point two on the U-shaped frame, respectively. The gas pipe is connected to a gas cylinder, and the welding wire is connected to a welding box.
[0012] Preferably, the moving mechanism includes a screw, guide rods, and a connecting frame. The bottom of the connecting frame is fixed to the base. The screw passes through the connecting frame and is threadedly connected to the connecting frame. One end of the screw is rotatably connected to the side wall of the moving block. One end of each of the two guide rods is fixed to the side wall of the moving block, and the other ends of both guide rods pass through the connecting frame. A knob is provided at the other end of the screw.
[0013] Preferably, both the fixed block and the movable block have through slots in the horizontal direction that match the housing one and housing two, so that the housing one and housing two can be embedded into the fixed block and the movable block. The right end of the first housing is provided with a protrusion, and the left end of the second housing is provided with a groove. A welding rod ring is fitted at the step position of the protrusion of the first housing. The first housing, the second housing, and the welding rod ring are assembled together by the protrusion and the groove. An air inlet is provided at one end of the housing, and a liquid outlet is provided at the other end of the housing.
[0014] A method for preparing an apparatus for an argon arc welding diaphragm accumulator includes the following steps: Step 1: Embed shell 1 and shell 2 into the through slots of the fixed block and the movable block respectively. Gradually move the movable block with the moving mechanism to bring it closer to the fixed block and embed the diaphragm body into shell 1 and shell 2. Then, continue to move the movable block to assemble shell 1 and shell 2 together. Step 2: The controller controls the extension of the electric telescopic rod, so that the argon arc welding torch is directed towards the assembly gap between shell 1 and shell 2; Step 3: The controller starts the motor, which drives gear one to rotate, gear one drives gear two to rotate, gear two drives the U-shaped frame and the ring to rotate, and the ring drives the argon arc welding gun to rotate, so that the welding rod ring can be welded at the assembly gap between shell one and shell two. Step 4: After the motor controls the argon arc welding torch to rotate one revolution, the argon arc welding torch stops working and the motor continues to rotate one revolution in the opposite direction to avoid the gas pipe and welding wire from getting tangled. Step 5: Reverse the moving block to remove the complete welded diaphragm accumulator between the fixed block and the moving block.
[0015] Application of a device for preparing an argon arc welding diaphragm accumulator in automated welding production.
[0016] The advantages and positive effects of the argon arc welding diaphragm accumulator preparation device, method, and application described in this invention are as follows: 1. By setting up a rotating mechanism to drive the argon arc welding torch to automatically rotate and weld along the circumferential weld, and cooperating with the electric telescopic rod to adjust the distance between the welding torch and the weld, the welding torch position is stable and accurate during the welding process, and the weld is uniform and consistent, avoiding defects such as uneven welding and porosity that are easy to occur in manual operation.
[0017] 2. The device has a reasonable structural design and is easy to operate. Only manual labor is required to complete the initial assembly of the shell and diaphragm. The subsequent welding process is completed automatically by the controller, which reduces the reliance on skilled welders and lowers labor costs.
[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the preparation device for an argon arc welding diaphragm accumulator according to the present invention; Figure 2 This is a schematic diagram of the overall structure of the diaphragm accumulator of the present invention; Figure 3 These are cross-sectional views of the first and second shells of the diaphragm accumulator of the present invention. Figure 4 for Figure 1 Top view; Figure 5 for Figure 1 Side view; Figure 6 This is a schematic diagram of the moving mechanism of the present invention.
[0020] Figure Labels 1. Shell 1; 101. Protrusion; 2. Shell 2; 201. Groove; 3. Air inlet; 4. Liquid inlet; 5. Base; 6. Fixing block; 7. Moving block; 8. Moving mechanism; 801. Screw; 802. Guide rod; 803. Knob; 804. Connecting frame; 9. Argon arc welding torch; 10. Rotating mechanism; 11. Motor; 12. Hollow tube; 13. Bearing housing; 14. Gear 1; 15. Gear 2; 16. U-shaped frame; 17. Ring; 18. Electric telescopic rod; 19. Welding rod ring; 20. Gas pipe; 21. Welding wire; 22. Fixing point one; 23. Fixing point two; 24. Support column; 25. Support block. Detailed Implementation
[0021] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0022] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.
[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0024] like Figures 1-6 As shown, a device for preparing an argon arc welding diaphragm accumulator includes a housing 1, a housing 2, a base 5, a fixing block 6, a moving block 7, a moving mechanism 8, an argon arc welding torch 9, and a rotating mechanism 10. The housing 1 is embedded in the fixing block 6, and the housing 2 is embedded in the moving block 7. The fixing block 6 is fixed to the base 5 by a support mechanism. The argon arc welding torch 9 is connected to the rotating mechanism 10. The moving block 7 is set on the moving mechanism 8. The diaphragm body is embedded in the housing 1 and the housing 2. The assembly of the housing 1 and the housing 2 is welded together by the argon arc welding torch 9.
[0025] The rotating mechanism 10 includes a motor 11, the output shaft of which is connected to a gear 14. A bearing seat 13 is also fixed on the base 5. A hollow tube 12 is rotatably connected inside the bearing seat 13. A gear 15 is fixedly connected to the outer wall of the hollow tube 12. Gear 14 and gear 15 mesh and drive each other. A U-shaped frame 16 is also fixed to the outer wall of the hollow tube 12. A ring 17 is fixedly connected to the end of the U-shaped frame 16.
[0026] The support mechanism includes a column 24 and a support block 25. One end of the column 24 is fixedly connected to the side wall of the fixed block 6, and the other end of the column 24 passes through the hollow tube 12 and is fixed to the support block 25. The bottom of the support block 25 is fixed to the base 5.
[0027] An electric telescopic rod 18 is fixedly connected to the inner wall of the ring 17. The movable end of the electric telescopic rod 18 is fixed to the argon arc welding gun 9, and the welding end of the argon arc welding gun 9 faces the center of the ring 17.
[0028] The axis of the hollow tube 12, the axis of the support 24, and the axis of the shell 1 are all on a straight line with the center point of the ring 17.
[0029] The argon arc welding gun 9 is connected to a gas pipe 20 and a welding wire 21. The gas pipe 20 and the welding wire 21 are fixed at fixing point 1 22 and fixing point 23 on the U-shaped frame 16, respectively. The gas pipe 20 is connected to a gas cylinder, and the welding wire 21 is connected to a welding box.
[0030] The moving mechanism 8 includes a screw 801, guide rods 802, and a connecting frame 804. The bottom of the connecting frame 804 is fixed to the base 5. The screw 801 passes through the connecting frame 804 and is threadedly connected to it. One end of the screw 801 is rotatably connected to the side wall of the moving block 7. One end of each of the two guide rods 802 is fixed to the side wall of the moving block 7, and the other ends of both guide rods 802 pass through the connecting frame 804. A knob 803 is provided at the other end of the screw 801.
[0031] Both the fixed block 6 and the movable block 7 have through slots in the horizontal direction that match the housing 1 and housing 2, so that the housing 1 and housing 2 can be embedded into the fixed block 6 and the movable block 7.
[0032] The right end of the housing 1 has a protrusion 101, and the left end of the housing 2 has a groove 201. A welding rod ring 19 is fitted at the step position of the protrusion 101 of the housing 1. The housing 1, the housing 2 and the welding rod ring 19 are assembled together by the protrusion 101 and the groove 201.
[0033] Specifically, the position of the welding rod ring 19 is matched with that of the argon arc welding gun 9.
[0034] The end of the first shell 1 is provided with an air inlet 3, and the end of the second shell 2 is provided with a liquid outlet 4. This is the existing structure of the first shell 1 and the second shell 2.
[0035] A method for preparing an apparatus for an argon arc welding diaphragm accumulator includes the following steps: Step 1: Insert housing 1 and housing 2 into the through slots of fixed block 6 and moving block 7 respectively. Move moving block 7 gradually through moving mechanism 8 so that it gets closer to fixed block 6 and inserts the diaphragm body into housing 1 and housing 2. Then, continue to move moving block 7 so that housing 1 and housing 2 are assembled together.
[0036] Step 2: The controller controls the extension of the electric telescopic rod 18, so that the argon arc welding gun 9 is directed toward the assembly gap between housing 1 and housing 2.
[0037] Step 3: The controller starts the motor 11, which drives the gear 14 to rotate. The gear 14 drives the gear 2 to rotate. The gear 2 to rotate the U-shaped frame 16 and the ring 17. The ring 17 drives the argon arc welding gun 9 to rotate, thereby enabling welding of the welding rod ring 19 at the assembly gap between the housing 1 and the housing 2.
[0038] Step 4: After the motor 11 controls the argon arc welding torch 9 to rotate one revolution, the argon arc welding torch 9 stops working and the motor 11 continues to rotate one revolution in the opposite direction to avoid the gas pipe 20 and the welding wire 21 from getting tangled.
[0039] Step 5: Move the moving block 7 in the reverse direction so that the complete welded diaphragm accumulator can be removed between the fixed block 6 and the moving block 7.
[0040] Application of a device for preparing an argon arc welding diaphragm accumulator in automated welding production.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. A fabrication apparatus for an argon arc welding diaphragm accumulator, characterized in that: The device includes a housing 1, a housing 2, a base, a fixing block, a moving block, a moving mechanism, an argon arc welding gun, and a rotating mechanism. The housing 1 is embedded in the fixing block, and the housing 2 is embedded in the moving block. The fixing block is fixed to the base by a support mechanism. The argon arc welding gun is connected to the rotating mechanism, and the moving block is set on the moving mechanism. The housing 1 and housing 2 contain a diaphragm body. The assembly joint of the housing 1 and housing 2 is welded together by the argon arc welding gun.
2. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 1, characterized in that: The rotating mechanism includes a motor, the output shaft of which is driven by a gear one. A bearing seat is also fixed on the base, and a hollow tube is rotatably connected inside the bearing seat. A gear two is fixedly connected to the outer wall of the hollow tube. Gear one and gear two mesh and drive each other. A U-shaped frame is also fixed to the outer wall of the hollow tube, and a ring is fixedly connected to the end of the U-shaped frame.
3. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 2, characterized in that: The support mechanism includes a support column and a support block. One end of the support column is fixedly connected to the side wall of the fixed block, and the other end of the support column passes through a hollow tube and is fixed to the support block. The bottom of the support block is fixed to the base.
4. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 3, characterized in that: An electric telescopic rod is fixedly connected to the inner wall of the ring. The movable end of the electric telescopic rod is fixed to the argon arc welding gun, and the welding end of the argon arc welding gun faces the center of the ring.
5. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 4, characterized in that: The axis of the hollow tube, the axis of the support column, and the axis of the shell are all aligned with the center point of the ring.
6. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 5, characterized in that: The argon arc welding gun is connected to a gas pipe and a welding wire. The gas pipe and welding wire are fixed at fixing point one and fixing point two on the U-shaped frame, respectively. The gas pipe is connected to a gas cylinder, and the welding wire is connected to a welding box.
7. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 1, characterized in that: The moving mechanism includes a screw, guide rods, and a connecting frame. The bottom of the connecting frame is fixed to the base. The screw passes through the connecting frame and is threadedly connected to the connecting frame. One end of the screw is rotatably connected to the side wall of the moving block. One end of each of the two guide rods is fixed to the side wall of the moving block, and the other ends of both guide rods pass through the connecting frame. A knob is provided at the other end of the screw.
8. The apparatus for preparing an argon arc welding diaphragm accumulator according to claim 7, characterized in that: Both the fixed block and the movable block have through slots in the horizontal direction that match the housing one and housing two, so that the housing one and housing two can be embedded into the fixed block and the movable block. The right end of the first housing is provided with a protrusion, and the left end of the second housing is provided with a groove. A welding rod ring is fitted at the step position of the protrusion of the first housing. The first housing, the second housing, and the welding rod ring are assembled together by the protrusion and the groove. An air inlet is provided at one end of the housing, and a liquid outlet is provided at the other end of the housing.
9. The method for preparing an argon arc welding diaphragm accumulator according to any one of claims 1-8, characterized in that: Includes the following steps, Step 1: Embed shell 1 and shell 2 into the through slots of the fixed block and the movable block respectively. Gradually move the movable block with the moving mechanism to bring it closer to the fixed block and embed the diaphragm body into shell 1 and shell 2. Then, continue to move the movable block to assemble shell 1 and shell 2 together. Step 2: The controller controls the extension of the electric telescopic rod, so that the argon arc welding torch is directed towards the assembly gap between shell 1 and shell 2; Step 3: The controller starts the motor, which drives gear one to rotate, gear one drives gear two to rotate, gear two drives the U-shaped frame and the ring to rotate, and the ring drives the argon arc welding gun to rotate, so that the welding rod ring can be welded at the assembly gap between shell one and shell two. Step 4: After the motor controls the argon arc welding torch to rotate one revolution, the argon arc welding torch stops working and the motor continues to rotate one revolution in the opposite direction to avoid the gas pipe and welding wire from getting tangled. Step 5: Reverse the moving block to remove the complete welded diaphragm accumulator between the fixed block and the moving block.
10. The application of the apparatus for preparing an argon arc welding diaphragm accumulator as described in claim 1 in automated welding production.