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The vane air compressor was first applied in refrigeration equipment, including car air conditioning, aircraft air conditioning, turbochargers, and large cabinet air conditioners. The working principle is to output air at standard atmospheric pressure through energy conversion to meet the needs of air compressors. The working parts of the vane compressor mainly consist of a vane dynamic disk and a vane static disk, as shown in the figure below, which cooperate to compress the air.

Turbo Impeller(Left) and Turbo Stator(Right)

  The vortex compressor mainly relies on the periodic rotation of the dynamic disk and the static disk to achieve the compression of air during operation, as it is an air compression part, and precise cooperation between the two is required to achieve the normal operation of the compressor. This also puts forward extremely high requirements for the manufacturing accuracy of the dynamic/static disk. For example: in order to ensure the efficient and stable operation of the parts, the perpendicularity of the vortex curve is required to be ≤0.008, the roughness of the bottom surface and side surface is required to be ≤Rz6.3, the parallelism between the top surface and the bottom surface is ≤0.015, and the flatness of the bottom surface is ≤0.01.

  Such high demands naturally require high-quality cutters to ensure. With continuous R&D investment, Puk Precision has successively developed a complete solution for features such as profile, seal groove, bearing mounting hole, and pin hole. Including:

1. Profile

Processing difficulties:

• side and base are machined at the same time;
• Perpendicularity less than 0.008mm;
• Rz6.3 surface roughness;
• No ripple, long life

1. 使用sharper cutting edge forms;
2. In terms of tool structure, the overall rigidity is guaranteed and the verticality is matched;
3. The bottom edge of the blade is designed to meet the requirements of roughness;

     

2. Sealing groove

Solution:

1. Single-blade design adopted;
2. Rear knife face grinding to ensure sufficient clearance gap;
3. Unique rear angle design to ensure sufficient support during the milling process.

Three, Bearing mounting hole

  The center of the back of the rotating disk is a bearing hole, which is used to install the bearing and support the rotation of the rotating disk. The hole diameter tolerance is higher, usually ±0.01mm; Puk可根據(jù)不同的加工工藝, provide solutions for turning or boring, and when using boring solutions, the tool diameter tolerance can be controlled at 0.002mm, thus providing extremely high life.