Headstock assembly for a chucker and bar machine
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United States of America Patent
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May 16, 1989
Grant Date -
N/A
app pub date -
Nov 10, 1987
filing date -
Nov 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention pertains to a head stock assembly for a chucker and bar machine which includes a special bearing system comprising three forward bearings and two rearward bearings for providing five point contacts to the spindle for maintaining stiffness and rigidity and improved accuracy in machining. It also includes cooling fin means for dissipating the heat about the bearings which would normally build up in a headstock after long periods of operation. The heat dissipation reduces growth of the headstock and therefore improves accuracy. In addition, the headstock assembly has mounted directly thereon a spindle encoder, a brake disc, a collet closer mechanism, a balancing disc, as well as a low pressure means for preventing cutting fluids and dust and dirt from entering into the bearing mechanism.
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