Vertical broaching machine for internal broaching

Details Vertical broaching machine for internal broaching Vertical broaching machine for internal broaching

1978-09-11

1981-05-12

Bilinsky, Z. R.

Gear cutting, milling, or planing

Broaching

Cutter infeed means

407 13, 409286, 409287, B23D 3710, B23D 4104

Patent

active

042668948

ABSTRACT:
The machine of the invention comprises a base designed to accomodate a blank being machined, and a mandrel with a broach connected to a hydraulic drive imparting movement thereto. The mandrel is provided with a guide located between a broach-supporting end of the mandrel and its other, fixed end. The guide has a passage for the mandrel in the course of inside broaching in the blank. According to one of the embodiments of the invention, the guide is made as a traverse resting against uprights fixed on the base. The traverse has a guide passage for the broach-supporting mandrel and two holes arranged symmetrically with respect to the guide passage and serving as guides for the rods of hydraulic cylinders of the machine hydraulic drive. Each one of the hydraulic cylinders is located partly in the base and partly in the upright. The rods are interconnected above the traverse with a cross-piece supporting the mandrel with broach.

REFERENCES:
patent: 1875033 (1932-08-01), Lapointe
patent: 2055349 (1936-09-01), Harless
patent: 3799030 (1974-03-01), Schubert

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