Cooling pump air cylinder welding tool

Abstract

The utility model is suitable for the field of cold pump welding, and provides a cold pump air cylinder welding tool which comprises a bottom plate, an upper plate, side plates and a mandrel. The upper plate is arranged above the bottom plate and is parallel to the bottom plate, and the two ends of the side plate are connected with the bottom plate and the upper plate respectively; the mandrel is connected to the bottom plate, the mandrel is cylindrical, an annular groove and a vertical groove are formed in the outer surface of the mandrel, and the vertical groove intersects with the annular groove. The annular grooves are evenly distributed in the axial direction of the mandrel, and the depth and the width of each annular groove are the same. The utility model solves the problem of vacuum phenomenon after welding caused by the lack of clearance design of the traditional cold pump cylinder welding tool.

Description

Technical Field

[0001] This utility model belongs to the field of cold pump welding technology, and in particular relates to a welding fixture for a cold pump cylinder. Background Technology

[0002] In the manufacturing process of cold pump cylinders, welding is one of the key steps to ensure their structural strength and sealing performance. Traditional welding fixtures for cold pump cylinders often lack design optimization for specific welding requirements, especially in terms of clamping. Traditional fixtures typically use simple planes or shapes to fix the parts to be welded. While this method can basically meet the positioning requirements, it exposes a series of problems in actual operation.

[0003] A major drawback is that, due to the lack of a specially designed vacuum-avoiding structure, a vacuum phenomenon easily occurs when disassembling the tooling after welding. This means that a localized vacuum environment is created between the workpiece and the tooling due to thermal expansion and contraction and close contact during welding, making disassembly difficult. This phenomenon not only increases the time cost of disassembly but may also damage the surface of the cold pump cylinder, affecting the quality of the final product.

[0004] In order to solve the above-mentioned technical problems, this utility model designs a welding fixture for a cold pump cylinder. Utility Model Content

[0005] This utility model provides a welding fixture for cold pump cylinders, aiming to solve the problem of vacuum phenomenon after welding caused by the lack of air-proof design in traditional cold pump cylinder welding fixtures. The technical solution is as follows:

[0006] A welding fixture for a cold pump cylinder includes a base plate, an upper plate, a side plate, and a mandrel; the upper plate is disposed above the base plate and parallel to the base plate, and the two ends of the side plate are respectively connected to the base plate and the upper plate; the mandrel is connected to the base plate, the mandrel is cylindrical, and an annular groove and a vertical groove are formed on the outer surface of the mandrel, the vertical groove intersecting the annular groove.

[0007] Based on the above technical solution, the annular grooves are evenly distributed along the axial direction of the mandrel, and each annular groove has the same depth and width.

[0008] Preferably, the vertical groove extends along the radial direction of the mandrel and extends through the entire length or part of the length of the mandrel.

[0009] Based on the above technical solution, a side plate mounting groove is opened on the base plate, the side plate is bolted to the side plate mounting groove, and an irregular hole is opened in the base plate.

[0010] Preferably, a shaped groove is formed at the bottom of the mandrel, and the shaped groove communicates with a shaped hole.

[0011] Beneficial effects

[0012] Compared with existing technologies, the beneficial effects of this utility model are: 1. Improved disassembly efficiency and product quality: By setting annular and vertical grooves on the mandrel, a specialized anti-vacuum structure is provided, effectively avoiding disassembly difficulties caused by local vacuum after welding. This not only reduces disassembly time costs but also avoids potential damage to the surface of the cold pump cylinder, thereby improving the quality of the final product. 2. Enhanced adaptability and flexibility: The side plate adopts a sliding rod and a support block sliding connection, and the position is locked by a mechanical locking device, allowing the tooling to quickly adapt to cold pump cylinders of different specifications and sizes. This design greatly enhances the versatility and flexibility of the tooling, making it suitable for scenarios requiring frequent workpiece changes or diversified production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0014] Figure 1 : A schematic diagram of the structure of the cylinder after installation of this utility model;

[0015] Figure 2 : A schematic diagram of the structure of this utility model;

[0016] Figure 3 : A schematic diagram of the structure of the mandrel described in this utility model;

[0017] Figure 4 : A schematic diagram of the irregular groove described in this utility model;

[0018] Figure 5 : A schematic diagram of the structure of the base plate described in this utility model;

[0019] Figure 6 Schematic diagram of the cold pump cylinder;

[0020] Figure 7 : A schematic diagram of the structure of the side plate described in this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and examples:

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0025] like Figure 2 As shown, a welding fixture for a cold pump cylinder includes a base plate 1, an upper plate 2, a side plate 3, and a mandrel 5; the upper plate 2 is disposed above the base plate 1 and parallel to the base plate 1; the two ends of the side plate 3 are respectively connected to the base plate 1 and the upper plate 2;

[0026] The base plate 1 and the upper plate 2 are set parallel to each other and are connected to the base plate 1 and the upper plate 2 respectively through the two ends of the side plates 3, forming a stable frame structure. This design improves the rigidity and stability of the entire welding fixture, helps to maintain the precise position of the workpiece during welding, and reduces errors caused by fixture deformation or vibration.

[0027] like Figure 3 and Figure 4 As shown, the mandrel 5 is connected to the base plate 1. The mandrel 5 is cylindrical. The outer surface of the mandrel 5 has an annular groove 51 and a vertical groove 52, which intersect.

[0028] The annular groove 51 and the vertical groove 52 are designed to provide clearance space. During welding, especially when welding inside enclosed structures, without proper clearance design, the workpiece may be difficult to remove from the fixture after welding due to the formation of a local vacuum. By setting these grooves, this situation can be effectively avoided, ensuring that the welded product can be easily disassembled and preventing disassembly difficulties or damage to the workpiece caused by the vacuum phenomenon.

[0029] The annular grooves 51 are evenly distributed along the axial direction of the mandrel 5, and each annular groove 51 has the same depth and width. Regardless of the length of the cold pump cylinder, a suitable positioning point or clearance area can be found. This not only helps to fix cylinders of different lengths but also ensures consistent support and stability during welding.

[0030] The vertical groove 52 extends radially along the mandrel 5 and penetrates the entire length or part of the length of the mandrel 5. For cylinders with complex shapes or requiring a specific angle for fixing, the vertical groove provides additional adjustment space.

[0031] like Figure 5 As shown, a side plate mounting groove 12 is formed on the base plate 1, and the side plate 3 is bolted to the side plate mounting groove 12. A shaped hole 14 is formed in the base plate 1. A shaped groove 53 is formed at the bottom of the mandrel 5, and the shaped groove 53 communicates with the shaped hole 14. The shaped hole 14 and the shaped groove 53 work together to provide an effective clearance area, preventing the problem of the workpiece being difficult to remove from the tooling due to the formation of a vacuum after welding. This not only improves disassembly efficiency but also avoids potential damage to the workpiece surface. The shaped hole 14 and the shaped groove 53 can also be used for other functions, such as as a channel for cooling medium or as a mounting point for automated components such as sensors.

[0032] A reinforcing plate mounting groove 11 is formed on the base plate 1, and a reinforcing plate 4 is screwed into the mounting groove 11. The use of the reinforcing plate 4 can significantly enhance the structural strength of the tooling, especially for applications that bear large loads or require high-precision positioning. This helps to reduce deformation caused by vibration or external forces during welding, ensuring the stability and durability of the tooling.

[0033] like Figure 6 The diagram shows the structure of the cold pump cylinder. The cylinder top cover 61 is fixed on the cylinder section 62, and the cylinder section 62 and the cylinder base plate 63 need to be welded together.

[0034] like Figure 1As shown, select a stable and sturdy workbench and place the base plate 1 horizontally on it. The side plates 3 are pre-installed on the base plate 1. The base plate 1 provides a stable foundation for subsequent components, helping to ensure the accuracy and stability of the entire welding process. At this point, the upper plate 2 separates from the base plate 1.

[0035] The cylinder base plate 63 is passed through the mandrel and fixed to the base plate 1 with bolts, ensuring that the cylinder base plate 63 and the mandrel 5 are concentric. This is to ensure that the cylinder base plate 63 can be accurately positioned in the predetermined position, laying a good foundation for subsequent assembly and welding steps. Next, the cylinder top cover 61 is connected to the upper plate 2 with bolts. Then, one section 62 of the cold pump cylinder is fitted onto the mandrel 5. Finally, the upper plate 2 and the side plate 3 are connected, so that the cylinder section 62 is clamped between the cylinder top cover 61 and the cylinder base plate 63. The concentricity and perpendicularity of each component are checked again. After confirming that everything is correct, welding can proceed.

[0036] To improve the ease of operation, applicability and versatility of the tooling, especially when dealing with cylinders of different specifications or frequently changing workpieces, side plate 3 is set as a retractable plate.

[0037] Specifically, such as Figure 7 As shown, the side plate 3 includes a support block 31, a sliding rod 32, and a mounting block 33. The upper plate 2 is bolted to the mounting block 33, and the mounting block 33 is fixed to the top of the sliding rod 32. The sliding rod 32 is slidably connected to the support block 31, and a mechanical locking device is provided on the sliding rod 32.

[0038] The sliding rod 32 is provided with a positioning hole, and the mechanical locking device is a screw. The screw cooperates with the positioning hole to limit the position of the sliding rod 32. The upper plate 2 is fixedly connected to the mounting block 33.

[0039] When using, place the base plate 1 on a stable workbench and ensure it is level. Pass the cylinder base plate 63 through the spindle 5 and fix it to the base plate 1 with bolts, ensuring that the cylinder base plate 63 and the spindle 5 are concentric.

[0040] Based on the length of the cold pump cylinder, loosen the mechanical locking device, i.e., loosen the screw, so that the sliding rod 32 can slide freely within the support block 31.

[0041] The cylinder top cover 61 is bolted to the upper plate 2. One section 62 of the cylinder is fitted onto the mandrel 5, and the position of the sliding rod 32 is adjusted to accommodate the length of the cylinder to be welded. This ensures that one section 62 of the cylinder is positioned on the cylinder base plate 63.

[0042] Locate the appropriate positioning hole for the sliding rod 32 and insert the mechanical locking device screw into the corresponding positioning hole. Tighten the screw to fix the position of the sliding rod 32, ensuring that it will not move or shift during welding. After confirming that all components are correctly installed and securely locked, and checking that the concentricity and perpendicularity of each part are correct, welding can begin.

[0043] With a simple adjustment mechanism, it can quickly adapt to cold pump cylinders of different specifications. The design allows the side plate 3 to be adjusted according to the specific size of the workpiece to be welded, so that the same tooling can be used for a variety of products of different specifications, thus improving the utilization rate of the equipment.

[0044] The base plate 1, top plate 2, side plates 3, and reinforcing plate 4 are all made of high-strength materials to withstand the high-temperature environment and mechanical stress during welding. The mandrel 5 is made of high-strength alloy steel, which not only effectively copes with the high-temperature environment and mechanical stress during welding but also extends the service life of the tooling, improving production efficiency and product quality. Furthermore, by appropriately selecting suitable material types and processing techniques based on specific usage conditions and requirements, the performance of the tooling can be further optimized.

[0045] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A cold pump cylinder welding fixture, characterized by: It includes a base plate (1), an upper plate (2), a side plate (3) and a mandrel (5); the upper plate (2) is located above the base plate (1) and is parallel to the base plate (1); the two ends of the side plate (3) are respectively connected to the base plate (1) and the upper plate (2); the mandrel (5) is connected to the base plate (1); the mandrel (5) is cylindrical; the outer surface of the mandrel (5) has an annular groove (51) and a vertical groove (52); the vertical groove (52) intersects with the annular groove (51).

2. A cold pump cylinder welding fixture according to claim 1, characterized in that: The annular grooves (51) are evenly distributed along the axial direction of the mandrel (5), and each annular groove (51) has the same depth and width.

3. A cold-pump cylinder welding fixture according to claim 1, characterized in that: The vertical groove (52) extends along the radial direction of the mandrel (5) and penetrates the entire length or part of the length of the mandrel (5).

4. A cold pump cylinder welding fixture as defined in claim 1, wherein: The base plate (1) has a side plate mounting groove (12), the side plate (3) is bolted to the side plate mounting groove (12), and the base plate (1) has an irregular hole (14).

5. A cold-pump cylinder welding fixture according to claim 3, wherein: The bottom of the mandrel (5) has a groove (53) and the groove (53) is connected to the hole (14).

6. A cold-pump cylinder welding fixture according to claim 1, wherein: A reinforcing plate mounting groove (11) is provided on the base plate (1), and a reinforcing plate (4) is connected to the reinforcing plate mounting groove (11) by screws.

7. A cold-pump cylinder welding fixture according to claim 1, characterized in that: The side plate (3) includes a support block (31), a sliding rod (32) and a mounting block (33). The mounting block (33) is bolted to the upper plate (2). The mounting block (33) is fixed to the top of the sliding rod (32). The sliding rod (32) is slidably connected to the support block (31). A mechanical locking device is provided on the sliding rod (32).

8. A cold-pump cylinder welding fixture according to claim 7, characterized in that: The sliding rod (32) is provided with a positioning hole, and the mechanical locking device is a screw. The screw cooperates with the positioning hole to limit the position of the sliding rod (32).

9. A welding fixture for a cold pump cylinder according to claim 6, characterized in that: The base plate (1), top plate (2), side plate (3) and reinforcing plate (4) are all made of high-strength materials to adapt to the high-temperature environment and mechanical stress during the welding process.

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