Machining fixture to produce accurate bottom thickness - has stops ensuring accurate machining of cylindrical workpiece without intermediate inspection measurements

摘要

The fixture is used for machining of a hollow cylindrical workpiece with inner bottom and outside end face. The rough machined workpiece is held in a chuck and its blind bore has a ground inner bottom. This bottom is brought against a stop and it is machined to ensure a closely toleranced distance between the inner bottom and outside end face. The machining is carried out automatically and without intermediate inspection measurements of the distance to be machined. The inside dia, of the stop (6) is greter than the outside dia. of the workpiece (2). The axial stop (3) is spring loaded and clamped against the workpiece (2) held in the clamping chuck (1). Another stop (7) is arranged in front of the clamping chuck and the stop (6) of the holding mandrel (5) is moved against this second stop.