A processing tool for a refrigeration equipment connecting pipe fitting

Abstract

The application relates to a processing tool for a refrigeration equipment connecting pipe fitting, which comprises a bottom plate, a positioning mechanism and a clamping mechanism. The tool can realize the processing of the front end wall and the front end hole of the pipe body of the connecting pipe fitting and the upper end face of the pipe seat only once during the clamping of the connecting pipe fitting, and the tool does not need to be clamped for multiple times, so that the increase of the processing precision error caused by the multiple clamping is avoided, and the realization of the product function is affected.

Description

Technical Field

[0001] This invention relates to the field of connecting pipe technology, and more specifically to a processing fixture for connecting pipes in refrigeration equipment. Background Technology

[0002] The connecting pipes of refrigeration equipment play a particularly important role in the refrigeration system, such as... Figure 1 As shown, the connecting pipe fitting 1 includes a pipe body 101 and a pipe seat 102. The connecting pipe fitting 1 not only serves as a connection, but also transmits and protects the refrigerant and balances the pressure of the indoor and outdoor units of the refrigeration system. Therefore, the functional and precision requirements of the connecting pipe fitting are very high. Since the front wall 104 and front hole 105 of the pipe body 101 and the upper end face 106 of the pipe seat 102 all need to be processed, the existing technology uses multiple clamping and processing, which causes processing accuracy errors. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a processing fixture for connecting pipes of refrigeration equipment to improve the processing accuracy of the pipes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A machining fixture for connecting pipe fittings of refrigeration equipment includes a base plate, a positioning mechanism, and a clamping mechanism;

[0006] The positioning mechanism includes a fixed positioning block, an adjustable positioning block, and a fixed base. The fixed positioning block and the fixed base are fixed to the bottom. The top of the fixed positioning block is provided with a first V-shaped groove that matches the outer wall of the connecting pipe. The adjustable positioning block is connected to the front end face of the fixed base, and the height of the adjustable positioning block is adjustable. The front end face of the adjustable positioning block is provided with an arc-shaped groove facing the first V-shaped groove. The arc-shaped groove matches the side shape of the pipe seat of the connecting pipe. The top of the arc-shaped groove has a support platform for supporting the top flange edge of the pipe seat of the connecting pipe.

[0007] The clamping mechanism includes a hydraulic cylinder, a clamping block, and a spring-loaded ball. The clamping block is located above the fixed positioning block. The front end of the clamping block is provided with a second V-groove that matches the outer wall of the connecting pipe. The hydraulic cylinder drives the clamping block to move downward, and the second V-groove of the clamping block cooperates with the first V-groove to clamp the pipe body of the connecting pipe. The spring-loaded ball is connected to the side of the clamping block facing the adjustable positioning block.

[0008] Furthermore, the front end face of the fixed base is provided with a guide groove arranged in the vertical direction, and the back of the adjustable positioning block is provided with a guide block that slides with the guide groove.

[0009] Furthermore, the adjustable positioning block is threaded with adjusting bolts on both sides, which are arranged vertically, and the bottoms of the two adjusting bolts abut against the bottom support plate of the fixed base.

[0010] Furthermore, a drive rod is fixed to the rear end of the clamping block. The middle part of the drive rod is rotatably connected to the rotating seat on the cylinder body of the hydraulic cylinder via a swing arm. The end of the piston rod of the hydraulic cylinder is hinged to the rear end of the drive rod.

[0011] By adopting the above technical solution, the present invention enables the processing of the connecting pipe fittings to be completed in a single clamping operation, which can process the front wall of the connecting pipe fitting, the front hole of the connecting pipe fitting, and the upper surface of the pipe seat without multiple clamping operations. This avoids the increase in processing accuracy error caused by multiple clamping operations, which would affect the realization of product functions. Attached Figure Description

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0013] Figure 1 This is a structural diagram of the connecting pipes for refrigeration equipment;

[0014] Figure 2 This is a schematic diagram of the processing tooling of the present invention;

[0015] Figure 3 A schematic diagram of the positioning mechanism;

[0016] Figure 4 This is a schematic diagram of the structure of the clamping and connecting pipe fitting of the present invention. Detailed Implementation

[0017] like Figure 1-4 As shown, the present invention provides a processing fixture for connecting pipes of refrigeration equipment, including a base plate 2, a positioning mechanism 4, and a clamping mechanism 3.

[0018] The positioning mechanism 4 includes a fixed positioning block 43, an adjustable positioning block 42, and a fixed seat 41. The fixed positioning block 43 and the fixed seat 41 are fixed to the bottom. The top of the fixed positioning block 43 is provided with a first V-shaped groove 431 that is adapted to the outer wall of the connecting pipe 1. The adjustable positioning block 42 is connected to the front end face of the fixed seat 41 and the height of the adjustable positioning block 42 is adjustable. The front end face of the adjustable positioning block 42 is provided with an arc-shaped groove facing the first V-shaped groove 431. The arc-shaped groove is adapted to the side shape of the pipe seat of the connecting pipe 1. The top of the arc-shaped groove has a support platform for supporting the top flange edge of the pipe seat of the connecting pipe 1.

[0019] The front end face of the fixed base 41 is provided with a guide groove arranged in a vertical direction, and the back of the adjustable positioning block 42 is provided with a guide block that slides with the guide groove. Adjusting bolts 44 arranged in a vertical direction are threaded to both sides of the adjustable positioning block 42, and the bottoms of the two adjusting bolts 44 abut against the bottom support plate of the fixed base 41. The height of the adjustable positioning block 42 can be adjusted by adjusting the position of the two adjusting bolts 44.

[0020] The clamping mechanism 3 includes a hydraulic cylinder 31, a clamping block 32, and a spring-loaded ball 33. The clamping block 32 is located above the fixed positioning block 43. The front end of the clamping block 32 is provided with a second V-groove 321 that is adapted to the outer wall of the connecting pipe 1. The hydraulic cylinder 31 drives the clamping block 32 to move downward. The second V-groove 321 of the clamping block 32 cooperates with the first V-groove 431 to clamp the pipe body of the connecting pipe 1. The spring-loaded ball 33 is connected to the side of the clamping block 32 facing the adjustable positioning block 42.

[0021] A drive rod is fixed to the rear end of the clamping block 32. The middle part of the drive rod is rotatably connected to a rotating seat on the cylinder body of the hydraulic cylinder 31 via a rocker arm. The end of the piston rod of the hydraulic cylinder 31 is hinged to the rear end of the drive rod. When the piston rod of the hydraulic cylinder 31 extends, it drives the clamping block 32 to rotate downwards and clamp. When the piston rod of the hydraulic cylinder 31 retracts, it drives the clamping block 32 to rotate upwards and release.

[0022] The working principle of this invention is as follows: The pipe body of the connecting pipe fitting 1 is placed on the first V-groove 431, while the pipe seat of the connecting pipe fitting 1 is inserted into the arc-shaped groove of the adjustable positioning block 42. The height of the adjustable positioning block 42 is adjusted so that the support platform at the top of the adjustable positioning block 42 abuts against the top flange edge of the pipe seat of the connecting pipe fitting 1. Then, the hydraulic cylinder 31 drives the clamping block 32 to press down, and the second V-groove 321 of the clamping block 32 cooperates with the first V-groove 431 to clamp the pipe body of the connecting pipe fitting 1. At the same time, the spring ball 33 presses the pipe seat of the connecting pipe fitting 1, thereby achieving the clamping and positioning of the connecting pipe fitting. After clamping is completed, the front wall of the pipe body, the front hole, and the upper surface of the pipe seat of the connecting pipe fitting 1 can be processed sequentially.

[0023] The specific embodiments of the present invention have been described above. However, those skilled in the art should understand that this is merely an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the present invention, but all such changes and modifications fall within the protection scope of the present invention.

Claims

1. A machining fixture for connecting pipe fittings in refrigeration equipment, characterized in that: Includes a base plate, a positioning mechanism, and a clamping mechanism; The positioning mechanism includes a fixed positioning block, an adjustable positioning block, and a fixed base. The fixed positioning block and the fixed base are fixed to the bottom. The top of the fixed positioning block is provided with a first V-shaped groove that matches the outer wall of the connecting pipe. The adjustable positioning block is connected to the front end face of the fixed base, and the height of the adjustable positioning block is adjustable. The front end face of the adjustable positioning block is provided with an arc-shaped groove facing the first V-shaped groove. The arc-shaped groove matches the side shape of the pipe seat of the connecting pipe. The top of the arc-shaped groove has a support platform for supporting the top flange edge of the pipe seat of the connecting pipe. The clamping mechanism includes a hydraulic cylinder, a clamping block, and a spring-loaded ball. The clamping block is located above the fixed positioning block. The front end of the clamping block is provided with a second V-groove that matches the outer wall of the connecting pipe. The hydraulic cylinder drives the clamping block to move downward. The second V-groove of the clamping block cooperates with the first V-groove to clamp the pipe body of the connecting pipe. The spring-loaded ball is connected to the side of the clamping block facing the adjustable positioning block.

2. The machining fixture for connecting pipe fittings of a refrigeration equipment according to claim 1, characterized in that: The front end face of the fixed base is provided with a guide groove arranged in the vertical direction, and the back of the adjustable positioning block is provided with a guide block that slides with the guide groove.

3. The machining fixture for connecting pipes in a refrigeration equipment according to claim 2, characterized in that: The adjustable positioning block has two sides threaded with adjusting bolts arranged in the vertical direction, and the bottoms of the two adjusting bolts abut against the bottom support plate of the fixed base.

4. The machining fixture for connecting pipe fittings of a refrigeration equipment according to claim 1, characterized in that: The rear end of the clamping block is fixed with a drive rod, the middle part of which is rotatably connected to the rotating seat on the cylinder body of the hydraulic cylinder via a swing arm, and the end of the piston rod of the hydraulic cylinder is hinged to the rear end of the drive rod.

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