Gear cutting – milling – or planing – Milling – Including means to infeed rotary cutter toward work
Patent
1985-03-22
1987-08-18
Weidenfeld, Gil
Gear cutting, milling, or planing
Milling
Including means to infeed rotary cutter toward work
409211, 409230, B23Q 112
Patent
active
046873910
ABSTRACT:
A milling machine head assembly has a milling machine head mounted on a movable carriage, for movement with the carriage and for angular movement relative to the carriage about a predetermined axis. A motor is mounted on the carriage for movement with the carriage but is maintained stationary during angular movement of the machine head. Drive power is transmitted from the motor to the machine head in any angular position of the machine head within said angular movement. For this purpose, a power transmission is twistable relative to said predetermined axis and extends along said predetermined axis through the carriage from the motor to the machine head in the form of a twistable endless belt. The power transmission may include two parallel shafts comprising a spindle shaft for operating a tool bit, and an auxiliary shaft adapted to be driven off the motor by a first belt via one end of the auxiliary shaft. A belt and pulley transmission interconnects another end of the auxiliary shaft with the spindle shaft. The auxiliary shaft is mounted for pivotal movement between the ends thereof about a pivot axis located between the first belt and the belt and pulley transmission and extending at right angles to the auxiliary shaft to permit selective slackening and tightening of the belt and pulley transmission.
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Webb Glenn L.
Weidenfeld Gil
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