| 摘要 |
A semi-automatic programmed cam controlled fluid actuated mechanism which holds, sequencially positions and pressure feeds various portions of rough workpieces such as, foundry castings, and forgings into a multi-pointed cutting tool of a machine tool for snagging gates, risers, sprues and other unwanted material therefrom. The mechanism is adapted to be fixed adjacent the cutting tool of a machine and can move the workpiece in a number of different directions about a plurality of axes to perform the necessary operations in any desired preselected programmed sequence. Workholders designed for each specific casting can be interchangeably mounted on the work support. Control means comprising programmable stepping switches, with numerous contacts and easily adjustable cams actuating fixed limit switches are provided to actuate various fluid directional valves, fluid motors, and movable components in the proper sequence and directions to produce the desired motions.
|
