Method of working scroll member of scroll compressor

Details Method of working scroll member of scroll compressor Method of working scroll member of scroll compressor

1993-06-16

1994-05-24

Bertsch, Richard A.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

279123, F01C 102

Patent

active

053143175

ABSTRACT:
Disclosed is a method of working a semi-finished scroll member for a scroll compressor which has a circular end plate having a first end face and a second end face with a spiral wrap extending therefrom. Before the second end face and the wrap are machined, the outer peripheral surface of the end plate is formed therein with a circumferencial groove to provide jaw finger engaging surfaces spaced from the first and second end faces of the end plate. Then, radial grooves are formed in the outer periphery of the end plate such that each groove extends between and is open in one of the jaw finger engaging surfaces and in the first end face of the end plate. Thereafter, the semi-finished scroll member is positioned relative to a machine tool such that the first axial end face of the end plate is placed adjacent a back-up member of the machine tool. Then, jaw fingers of the machine tool are moved into engagement with the jaw finger engaging surfaces of the semi-finished scroll member, respectively, and are further moved axially of the machine tool toward the back-up member until the first axial end face of the end plate is urged against the back-up plate, whereby the semi-finished scroll member is firmly fixed to the machine tool and ready for machining of the second axial end face of the end plate and of the spiral wrap thereon.

REFERENCES:
patent: 4838562 (1989-06-01), Akashi
patent: 5103558 (1992-04-01), Herrick et al.

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