Gear cutting – milling – or planing – Milling – With regulation of operation by templet – card – or other...
Patent
1982-02-25
1984-05-08
Bilinsky, Z. R.
Gear cutting, milling, or planing
Milling
With regulation of operation by templet, card, or other...
408 3, 408235, 409237, B23B 4726, B23C 102
Patent
active
044471785
ABSTRACT:
A horizontal drilling and milling machine comprises a vertically movable headstock and a spindle sleeve mounted for horizontal run-out from the headstock. Typically, an outer end of the spindle sleeve undergoes a vertical deflection relative to the headstock during run-out, which deflection is an exponential function of the extent of the run-out. A correcting means is connected to the headstock to move the latter as the run-out proceeds, to effect a vertical correction displacement of the forward end of the spindle sleeve, which displacement is the same exponential function of the extent of the run-out as that of the vertical deflection relative to the headstock. Correction is achieved by comparing a signal indicative of the extent of the run-out, with a predetermined exponential function for the particular spindle sleeve and tool, and generating a suitable correction signal in response thereto. A memory and computer device is employed to make the necessary comparison. The memory and computer device transmit a signal to a motor, which motor is arranged to displace a reversing roll around which a cable is extended. The ends of the cable are connected between the headstock and counterweight. Radial movement of the reversing roll causes the headstock to be inclined in a vertical plane. A motion transmitting mechanism between the motor and the reversing roll enables precise movements to be made even by a motor rotating at high rpm.
REFERENCES:
patent: 3827333 (1974-08-01), Hurd
patent: 3853423 (1974-12-01), Quack
patent: 3988965 (1976-11-01), Cayen et al.
patent: 4149882 (1979-04-01), Lehmkuhl
patent: 4178834 (1979-12-01), Holmstrom
Bilinsky Z. R.
Scharmann GmbH & Co.
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