US 4,062,151 AGranted

Billet grinding machine

AssigneeSunds Aktiebolag

InventorSven Ingemar Hjalmarson

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Abstract

A grinding machine for grinding workpieces, such as ingots and billets, is provided which, in combination, includes a movable table for supporting the workpiece, a base arranged adjacent to the movable table, and a pair of arms pivotally mounted on the base. A holder supports a grinding wheel, and the holder is pivotally connected to the pair of arms at a pivot so that the contact force of the grinding wheel with the workpiece is caused by the turning moment of the holder about the pivot. A hydraulic cylinder is connected to the holder for pivoting the holder and the grinding wheel about the pivot so that the contact force of the grinding wheel may be balanced and controlled. In addition, the hydraulic cylinder is supported on a movable carriage and is connected to the pivot so that the hydraulic cylinder is movable with the holder and the grinding wheel as the holder moves about the pivot.

Claims8

Dependent claims

A grinding machine for grinding a workpiece such as an ingot or a billet comprising:

a movable table for supporting said workpiece;
a base and a pair of substantially vertical arms pivotally mounted on said base;
a grinding wheel for grinding the surface of said workpiece;
a holder for said grinding wheel pivotally connected to said pair of arms at a pivot so that the contact force of the grinding wheel with the workpiece is caused by the turning moment of said holder about said pivot;
a substantially vertically-acting hydraulic cylinder connected to said holder for pivoting said holder and said grinding wheel about said pivot and for counterbalancing the weight of said holder and said grinding wheel to control the contact force of said grinding wheel;
and
means for movably supporting said hydraulic cylinder and being connected to said pivot so that said hydraulic cylinder is movable with said holder as said holder moves about said pivot while maintaining its substantially-vertical position.

4 more elements

Dependencies are inferred from the claim text.