| 摘要 |
A method for machining a variable displacement compressor piston (21). The piston (21) is connected to a swash plate (19) by a pair of semi-spherical shoes (22). One end of the piston (21) has a slot (33) for receiving the swash plate (19). The slot (33) includes a pair of opposed walls (35A, 35B). Each wall (35A, 35B) has a concave spherical recess (37A, 37B) for supporting one of the shoes (22). When forming the recesses (37A, 37B), a tool (36) having an asymmetrical spherical cutter (36b) is placed between the slot walls (35A, 35B) in the piston (21). Then, the piston (21) is rotated about a machining axis (L3) that is perpendicular to the axis (L1) of the piston (21) and intersects the midpoint between the walls (35A, 35B). Then, the tool (36) is moved such that the center (C1) of the cutter (36b) is located on the rotation axis (L3) of the piston (21). This forms the recesses (37A, 37B) on the walls (35A, 35B) such that the recesses (37A, 37B) conform to a single sphere, the center of which is located on the axis (L1) of the piston (21). <IMAGE> |
