NC helical broaching machine improved in broach driving
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United States of America Patent
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N/A
Issued Date -
Jun 26, 2003
app pub date -
Dec 23, 2002
filing date -
Dec 26, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A broaching machine is of a work-moving type in which a broach is rotatively driven while a work held on a ram is pushed up against the broach to perform broaching of the work. The broach is driven at the front end shank and the rear end shank in synchronism with each other under the control of an NC controller. The work and the ram are adapted to be moved vertically (in a Y-axis direction). This construction frees the broach from any torsion and improves a machining accuracy.
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