Turbination processing method of compressor

Abstract

The invention relates to a scroll processing method of compressor. It includes the following steps: casting forming : the scroll is formed by compression casting type to make the scroll have a disc, each the both side of the disc has a seating body and a scroll piece. Processing base level: each of the outer edge surface of the disc and the surface connected to the seating body is processed to vertical base level and horizontal base level, as well as the outer edge surface of the seating body is processed. Pulling down work piece and fixing position: the seating body is clamped by tool and pulled down to make the horizontal base level hug closely to stable tool platform to fix the position, the scroll piece is convex out of the stable tool. Centre gripping: the clamp device is clamped to the vertical base level to make the scroll be fixed with steady centre gripping. Processing: after the scroll is fixed with steady centre gripping, the scroll can be processed by processing implement to make sure that each of the processing surfaces can be parallel to the vertical base level or horizontal base level. The invention can ensure each of the processing surfaces is parallel to the vertical base level or horizontal base level, realize the improvement of the effect of the processing precision, improve the intensity of the scroll.

Description

technical field [0001] The invention relates to a scroll processing method of a compressor. Background technique [0002] The scroll processing method of existing compressor is to adopt the scroll of casting molding, as Figure 5 As shown, the scroll 8 has a disc 81, and the two sides of the disc 81 have a base 82 and a scroll piece 83 respectively, and a datum surface 811 is processed on the outer edge of the disc 81, and The side of the disc 81 adjacent to the base 82 and the base 82 are processed, and then the reference surface 811 is clamped by a clamp 9 to expose the scroll piece 83 so that the scroll piece can be processed by a processing tool. [0003] However, limited by the thickness of the disk 81, the contact area between the reference surface 811 and the clamp 9 is small, which will lead to unstable clamping, and the phenomenon that the disk 81 is deflected during the process of processing the scroll piece 83, Furthermore, the problem of deflection of the proces...

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Problems solved by technology

[0003] However, limited by the thickness of the disk 81, the contact area between the reference surface 811 and the clamp 9 is small, which will lead to unstable clamping, and the phenomenon that the disk 81 is deflected during the process of processing the scroll piece 83, And then cause the problem of deflection of the scroll sheet 83 after processing

Since the precision of the parallelism and perpendicularity of the scroll piece 83 needs to be controlled within 8um, as long as the disc 81 is deflected, the processed scroll piece 83 will easily produce a deflection greater than the error amount, and become Defective products, so it is necessary to improve

[0004] Furthermore, if there are pores in the casted scroll, it is easy to produce defective products after processing. Therefore, the casting of the scroll has generally used the pressure casting method at present, but the inventors found that the current pressure casting method still has Pores exist, so it is still necessary to improve

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