A welding fixture for an automobile water pump housing

Abstract

The utility model provides a kind of welding with car water pump shell fixture, belong to automobile parts manufacturing technical field.It solves the problem that traditional fixture is often unstable due to fixture positioning, uneven stress, prone to shell welding deformation, weld quality fluctuation, affect water pump sealing performance and service life.The welding with car water pump shell fixture, including fixture base, positioning assembly for accurate positioning of workpiece is provided on fixture base, side pin positioning plate, upper pressure block assembly and lower pressure block assembly are sequentially annularly arranged at the periphery of positioning assembly, side pin positioning plate, upper pressure block assembly and lower pressure block assembly are fixed on fixture base by bolt, positioning unit for fixing welding piece is provided on upper pressure block assembly.The utility model has the advantages of accurate positioning and efficient clamping.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing technology, and specifically relates to a welding fixture for automotive water pump housings. Background Technology

[0002] Inside the cylinder block of a car engine, there are multiple water channels for cooling water circulation. These channels are connected to the radiator (commonly known as the water tank) located at the front of the car via water pipes, forming a large water circulation system. At the upper outlet of the engine, there is a water pump that is driven by a fan belt to pump hot water out of the engine block water channels and pump cold water in. Its basic structure consists of parts such as a water pump housing, connecting plate or pulley, pump shaft and bearing or shaft-connected bearing, water pump impeller, and water seal device.

[0003] In the automotive parts manufacturing industry, the water pump housing is a core component of the engine cooling system. During the continuous welding process of the automotive water pump housing, traditional fixtures often suffer from unstable positioning and uneven force, which can easily lead to housing welding deformation, weld quality fluctuations, and affect the water pump's sealing performance and service life. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a welding fixture for automotive water pump housings.

[0005] The objective of this utility model can be achieved through the following technical solution: A welding fixture for an automotive water pump housing, comprising a fixture base, characterized in that a positioning component for precise positioning of the workpiece is provided on the fixture base, and a side pin positioning plate, an upper pressure block assembly, and a lower pressure block assembly are sequentially arranged around the positioning component, the side pin positioning plate, the upper pressure block assembly, and the lower pressure block assembly are fixed to the fixture base by bolts, and the upper pressure block assembly has a positioning unit for fixing the welded part.

[0006] In the above-mentioned welding automobile water pump housing fixture, the positioning component includes a central positioning block and a plurality of columns arranged circumferentially around the central positioning block, and a central shaft for positioning is provided on the central positioning block.

[0007] In the aforementioned welding fixture for an automotive water pump housing, a positioning pin is provided on the top of the side pin positioning plate.

[0008] In the above-mentioned welding car water pump housing fixture, the upper pressure block assembly includes an upper pressure base, an upper pressure block rotating frame, and an upper pressure strip. The upper pressure block rotating frame has a groove at its end, and the upper pressure strip is fixedly installed in the groove by a pin. The upper pressure strip is provided with a handle on its side. By rotating the upper pressure strip with the handle, a clamping mouth for fixing the welded part is provided at the top of the upper pressure strip.

[0009] In the above-mentioned welding fixture for automotive water pump housings, the positioning unit includes a support plate and a positioning pin. The positioning pin passes through the support plate and extends outward. The front end of the positioning pin has a U-shaped groove for clamping the welded part.

[0010] In the aforementioned welding automotive water pump housing fixture, the lower pressure block assembly includes a lower pressure frame and a lower pressure cover. The lower pressure frame has an opening slot, and a guide rail is provided in the opening slot. The guide rail is fixed between the lower pressure frame and the lower pressure cover, and a linear bearing sleeve is fitted on the guide rail. The linear bearing sleeve is provided with a lower pressure bar for fixing the extruded weldment. The linear bearing sleeve is moved by a driving device.

[0011] In the above-mentioned welding automotive water pump housing fixture, the upper pressure block assembly and the positioning unit are integrally formed structures.

[0012] Compared with existing technologies, this welding fixture for automotive water pump housings integrates precise positioning, efficient clamping, and multiple functions, which not only significantly improves the quality and efficiency of welding automotive water pump housings, but also has the advantages of robust structure, convenient operation, and good adaptability, making it highly practical and worth promoting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the welding automotive water pump housing fixture.

[0014] Figure 2 This is a schematic diagram of the fixture for welding automotive water pump housings.

[0015] Figure 3 This is a rear view of the welding fixture for an automotive water pump housing.

[0016] In the diagram, 1. Fixture base; 2. Positioning assembly; 3. Side pin positioning plate; 4. Upper pressure block assembly; 5. Lower pressure block assembly; 6. Positioning unit; 7. Center positioning block; 8. Column; 9. Center shaft; 10. Positioning pin; 11. Upper pressure base; 12. Upper pressure block pivot bracket; 13. Upper pressure strip; 14. Pin shaft; 15. Handle; 16. Grip; 17. Support plate; 18. Positioning pin; 19. U-shaped groove; 20. Lower pressure frame; 21. Lower pressure cover; 22. Guide rail; 23. Linear bearing sleeve; 24. Lower pressure strip; 25. Drive device. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the welding car water pump housing fixture includes a fixture base 1, on which a positioning component 2 for precise positioning of the workpiece is provided. A side pin positioning plate 3, an upper pressure block assembly 4, and a lower pressure block assembly 5 are arranged in sequence around the positioning component 2. The side pin positioning plate 3, the upper pressure block assembly 4, and the lower pressure block assembly 5 are fixed to the fixture base 1 by bolts. The upper pressure block assembly 4 has a positioning unit 6 for fixing the welded parts.

[0019] To elaborate further, the positioning component 2 includes a central positioning block 7 and several columns 8 arranged circumferentially around the central positioning block 7. The central positioning block 7 is provided with a central shaft 9 that plays a positioning role. When installing the workpiece, the central hole of the water pump housing is fitted onto the central shaft 9, while the edge or specific part of the housing is radially and circumferentially limited by multiple columns 8, thereby achieving rapid and accurate positioning of the workpiece.

[0020] To elaborate further, the top of the side pin positioning plate 3 is provided with a positioning pin 10, which is used to assist in positioning a specific side of the workpiece to prevent it from moving in the horizontal plane.

[0021] To elaborate further, the upper pressure block assembly 4 includes an upper pressure base 11, an upper pressure block pivot bracket 12, and an upper pressure strip 13. The upper pressure block pivot bracket 12 has a groove at its end, and the upper pressure strip 13 is fixedly installed in the groove by a pin 14. The upper pressure strip 13 is rotatably installed in the groove by the pin 14, so that the upper pressure strip 13 can be raised or lowered within a certain angle range around the pin 14. A handle 15 is provided on the side of the upper pressure strip 13, and the upper pressure strip 13 can be rotated by the handle 15. The handle 15 is designed to facilitate the user to apply force. A clamp 16 for fixing the welded part is provided at the top of the upper pressure strip 13. The shape of the clamp 16 matches the welded part being pressed to ensure that the pressing force is effective and does not damage the workpiece.

[0022] To elaborate further, the positioning unit 6 includes a support plate 17 and a positioning pin 18. The positioning pin 18 passes through the support plate 17 and extends outward. The front end of the positioning pin 18 has a U-shaped groove 19 for clamping the welded part. When the welded part is placed in the predetermined position, the positioning pin 18 is pushed, and the U-shaped groove 19 at its front end can accurately lock and clamp the welded part, keeping it fixed during the welding process.

[0023] To elaborate further, the lower pressure block assembly 5 includes a lower pressure frame 20 and a lower pressure cover 21. The lower pressure cover 21 is installed to protect the lower pressure frame 20 and the opening slot. The lower pressure frame 20 has an opening slot, and a guide rail 22 is installed in the opening slot. The guide rail 22 is fixed between the lower pressure frame 20 and the lower pressure cover 21, and a linear bearing sleeve 23 is fitted on the guide rail 22. The linear bearing sleeve 23 can slide smoothly and linearly along the guide rail 22, and a lower pressure bar 24 for fixing the extruded welded part is provided on the linear bearing sleeve 23. The linear bearing sleeve 23 is moved by a drive device 25. The drive device 25 pushes the linear bearing sleeve 23 and the lower pressure bar 24 on it to move along the guide rail 22, thereby performing precise linear extrusion and fixing of specific parts of the workpiece. This linear guide rail 22 structure ensures the smoothness and accuracy of the pressing action and avoids positioning errors caused by shaking.

[0024] To elaborate further, the upper pressure block assembly 4 and the positioning unit 6 are integrally molded structures, which improves strength and positioning accuracy.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0026] Although this document frequently uses terms such as clamp base 1, positioning assembly 2, side pin positioning plate 3, upper pressure block assembly 4, lower pressure block assembly 5, positioning unit 6, center positioning block 7, column 8, center shaft 9, positioning pin 10, upper pressure base 11, upper pressure block rotating bracket 12, upper pressure strip 13, pin shaft 14, handle 15, clamp 16, bracket plate 17, positioning pin 18, U-shaped groove 19, lower pressure frame 20, lower pressure cover 21, guide rail 22, linear bearing sleeve 23, lower pressure strip 24, and drive device 25, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A fixture for welding an automobile water pump housing, comprising a fixture base (1), characterized in that, The fixture base (1) is provided with a positioning component (2) for precise positioning of the workpiece. A side pin positioning plate (3), an upper pressure block assembly (4) and a lower pressure block assembly (5) are arranged in sequence around the positioning component (2). The side pin positioning plate (3), the upper pressure block assembly (4) and the lower pressure block assembly (5) are fixed to the fixture base (1) by bolts. The upper pressure block assembly (4) has a positioning unit (6) for fixing the welded parts.

2. The welding fixture for an automotive water pump housing according to claim 1, characterized in that, The positioning component (2) includes a central positioning block (7) and several columns (8) arranged around the central positioning block (7). The central positioning block (7) is provided with a central axis (9) that plays a positioning role.

3. A welding fixture for an automotive water pump housing according to claim 1, characterized in that, The side pin positioning plate (3) is provided with a positioning pin (10) on its top.

4. A welding fixture for an automotive water pump housing according to claim 1, characterized in that, The upper pressure block assembly (4) includes an upper pressure base (11), an upper pressure block rotating frame (12), and an upper pressure strip (13). The upper pressure block rotating frame (12) has a groove at its end. The upper pressure strip (13) is fixedly installed in the groove by a pin (14). The upper pressure strip (13) has a handle (15) on its side. The upper pressure strip (13) is rotated by the handle (15). A clamp (16) for fixing the welded parts is provided on the top of the upper pressure strip (13).

5. A welding fixture for an automotive water pump housing according to claim 1, characterized in that, The positioning unit (6) includes a support plate (17) and a positioning pin (18). The positioning pin (18) passes through the support plate (17) and extends outward. The front end of the positioning pin (18) has a U-shaped groove (19) for clamping the welded part.

6. A welding fixture for an automotive water pump housing according to claim 1, characterized in that, The pressing block assembly (5) includes a pressing frame (20) and a pressing cover (21). The pressing frame (20) has an opening slot, and a guide rail (22) is provided in the opening slot. The guide rail (22) is fixed between the pressing frame (20) and the pressing cover (21). A linear bearing sleeve (23) is sleeved on the guide rail (22), and a pressing strip (24) for fixing the extruded welded part is provided on the linear bearing sleeve (23). The linear bearing sleeve (23) is moved by a driving device (25).

7. A welding fixture for an automotive water pump housing according to claim 1, characterized in that, The upper pressure block assembly (4) and the positioning unit (6) are integrally formed structures.

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