Special fixture for air conditioner compressor blade milling machine notch processing
By connecting the top plate to the machine tool operating table, and combining wear-resistant pads and lubricating coatings, the problems of machine tool wear and complex replacement caused by traditional fixtures are solved, and efficient and precise machining of air conditioning compressor blade slots is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XIGONG COMPRESSOR FITTINGS
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional fixture designs result in severe wear on machine tool tables, and replacement and adjustment are complex, affecting processing efficiency and accuracy.
The design adopts a top plate that connects to the machine tool operating table. It is connected to the top plate through reciprocating friction fit, combined with wear-resistant pads and lubricating coating to reduce friction loss, and the workpiece stability is ensured by extrusion blocks and elastic elements.
It effectively reduces wear on the machine tool table, improves processing efficiency and accuracy, extends the service life of the machine tool, and ensures the stability of the workpiece during processing.
Smart Images

Figure CN224274173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, specifically a new type of fixture for milling grooves in air conditioning compressor blades, which is particularly suitable for scenarios where fixtures need to be changed frequently and high machining accuracy is required. Background Technology
[0002] In the machining of air conditioner compressor blades, the machining accuracy of the grooves directly affects the blade's performance and service life. Traditional fixture designs are usually directly fixed to the machine tool's operating table, which leads to table wear over time, affecting the machine tool's accuracy and lifespan. Furthermore, replacing and adjusting traditional fixtures is complex, impacting machining efficiency. Therefore, there is an urgent need for a new type of fixture that can reduce machine tool table wear and facilitate replacement and adjustment. Summary of the Invention
[0003] The purpose of this utility model is to provide a special fixture for milling grooves in air conditioning compressor blades. This fixture has a simple structure and is easy to operate. It can effectively reduce the wear of the machine tool table, extend the service life of the machine tool, and improve processing efficiency and accuracy. It has high practical value.
[0004] To achieve the above objectives, the technical solution of this utility model is: a special fixture for milling grooves of air conditioning compressor blades, comprising a first mandrel base plate, a second mandrel base plate, and an extrusion block. The first mandrel base plate is connected to the machine tool operating table via a fixing component; the second mandrel base plate is detachably connected to the first mandrel base plate via a reciprocating friction fit; the extrusion block is disposed on the second mandrel base plate for fixing the workpiece.
[0005] Furthermore, the reciprocating friction fit is as follows: a dovetail groove is provided on the top plate one; a dovetail protrusion matching the dovetail groove is provided at the bottom of the top plate two, so that quick installation and disassembly can be achieved by sliding.
[0006] Furthermore, the extrusion block includes a fixing part and a clamping part. The fixing part is connected to the top plate and bottom plate by bolts. The clamping part is provided with a V-groove to adapt to blade workpieces of different sizes.
[0007] Furthermore, the clamping part is provided with an elastic element to buffer vibrations during the processing.
[0008] Furthermore, a wear-resistant pad made of polytetrafluoroethylene is provided between the top plate and the machine tool operating table to reduce frictional wear.
[0009] Furthermore, the connecting surfaces of the first and second top plate are coated with a lubricating coating made of molybdenum disulfide to reduce sliding resistance.
[0010] The beneficial effects of this utility model are:
[0011] 1. Reduce machine tool wear: The connection between the top plate 1 and the machine tool table avoids direct wear of the fixture on the machine tool table, thus extending the service life of the machine tool.
[0012] 2. Convenient replacement: The design of the top plate 1 and the top plate 2 makes it easier to replace and adjust the fixture, thus improving processing efficiency.
[0013] 3. Improved machining accuracy: The stable fixation of the extrusion block ensures the stability of the workpiece during the machining process and improves the machining accuracy of the groove. Attached Figure Description
[0014] Figure 1 This is the main view of a special fixture structure used for milling grooves in air conditioning compressor blades;
[0015] Figure 2 yes Figure 1 Top view. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] like Figure 1 As shown in Figure 2, the special fixture for milling grooves in air conditioning compressor blades according to this utility model consists of three parts: a first mandrel base plate 1, a second mandrel base plate 2, and a pressing block 3. The first mandrel base plate 1 is directly connected to the machine tool operating table. The second mandrel base plate 2 is connected to the first mandrel base plate 1 via a reciprocating friction fit. The pressing block 3 is used to fix the workpiece, ensuring its stability during processing and avoiding machining errors caused by vibration or displacement. This design allows for easy replacement of the first mandrel base plate 1 and the second mandrel base plate 2, avoiding direct wear on the machine tool table and extending the machine tool's service life.
[0018] Preferably, the top plate 1 is directly mounted on the machine tool operating table by bolts or other fasteners to ensure the stability of the fixture.
[0019] Preferably, the mandrel base plate 2 is connected to the mandrel base plate 1 via a reciprocating friction fit. This design allows the mandrel base plate 2 to be easily replaced or adjusted to meet the processing requirements of different workpieces.
[0020] Preferably, the top base plate 1 is provided with a dovetail groove; the bottom of the top base plate 2 is provided with a dovetail protrusion that matches the dovetail groove, so that quick installation and disassembly can be achieved by sliding.
[0021] Preferably, the extrusion block 3 includes a fixing part and a clamping part. The fixing part is connected to the top plate 2 by bolts. The clamping part is provided with a V-groove to accommodate blade workpieces of different sizes.
[0022] Preferably, the clamping part is provided with an elastic element to buffer vibrations during the processing.
[0023] Preferably, a wear-resistant pad made of polytetrafluoroethylene is provided between the top plate 1 and the machine tool operating table to reduce frictional wear.
[0024] Preferably, the connecting surfaces of the top plate 1 and the top plate 2 are coated with a lubricating coating made of molybdenum disulfide to reduce sliding resistance.
[0025] The novel fixture provided by this utility model has a simple structure and is easy to operate. It can effectively reduce the wear of the machine tool table, extend the service life of the machine tool, and improve processing efficiency and accuracy, thus having high practical value.
Claims
1. A special fixture for milling grooves in air conditioning compressor blades, characterized in that, It includes a first mandrel base plate, a second mandrel base plate, and an extrusion block. The first mandrel base plate is connected to the machine tool operating table via a fastener. The second mandrel base plate is detachably connected to the first mandrel base plate via a reciprocating friction fit. The extrusion block is set on the second mandrel base plate and is used to fix the workpiece.
2. The special fixture for milling grooves in air conditioning compressor blades according to claim 1, characterized in that, The reciprocating friction fit is as follows: a dovetail groove is provided on the top plate 1; a dovetail protrusion matching the dovetail groove is provided at the bottom of the top plate 2, and quick installation and disassembly are achieved by sliding.
3. The special fixture for milling grooves in air conditioning compressor blades according to claim 1, characterized in that, The extrusion block includes a fixing part and a clamping part. The fixing part is connected to the top plate by bolts. The clamping part is provided with a V-groove to accommodate blade workpieces of different sizes.
4. The special fixture for milling grooves in air conditioning compressor blades according to claim 3, characterized in that, The clamping part is provided with an elastic element to buffer vibrations during the processing.
5. The special fixture for milling grooves in air conditioning compressor blades according to claim 1, characterized in that, A wear-resistant pad made of polytetrafluoroethylene is provided between the top plate and the machine tool operating table to reduce frictional wear.
6. The special fixture for milling grooves in air conditioning compressor blades according to claim 1, characterized in that, The connecting surfaces of the top plate one and the top plate two are coated with a lubricating coating made of molybdenum disulfide to reduce sliding resistance.