Spindle structure for gear shaping machine or the like

Details Spindle structure for gear shaping machine or the like Spindle structure for gear shaping machine or the like

1977-01-10

1978-11-14

Sipos, John

90 16R, 91 39, 92136, B23F 904

Patent

active

041250567

ABSTRACT:
A hydro-mechanically operated reciprocating spindle for a machine tool is disclosed in the environment of a vertical gear shaper. The spindle comprises a piston which is slidable in a cylinder and which carries a cutting tool at its bottom end. The spindle-piston has two faces of different area to which hydraulic fluid under pressure is directed, the larger area face being used to drive the spindle downwardly in the cutting stroke, and the smaller area face being used to drive the spindle upwardly in the return stroke. Further, the spindle-piston has an axial bore which receives a vertically reciprocable valve. The valve is reciprocated by linkages driven by a rotating shaft, and the arrangement is such as to drive the valve downwardly and thus to move the spindle downwardly at a controlled velocity and under a controlled hydraulic force, and then as the valve is moved upwardly the spindle is moved upwardly on the return stroke at preferably a higher velocity.

REFERENCES:
patent: 2217666 (1940-10-01), Miller
patent: 3587394 (1971-06-01), Hilbrands

Affiliated with

Also associated with

Rating

Spindle structure for gear shaping machine or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spindle structure for gear shaping machine or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spindle structure for gear shaping machine or the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1297502