US 6,681,655 B2 · Grinding attachment and saw-blade grinding machine with an HF spindle

Abstract

A grinding machine, preferably for sharpening circular saw-blades, has a machine frame that supports a device for supporting the saw blade, for fixedly clamping the blade, and for advancing the saw-blade tooth-by-tooth. The grinding attachment has two independent operating spindles or, which are preferably oriented perpendicular to one another, and support separate drives. The grinding attachment is mounted to pivot and be adjusted in three spatial directions. In a selected pivoting position, one of these spatial directions (Z direction) is oriented radially with respect to the saw blade. In this position, the axis of rotation of one spindle is oriented in the circumferential direction, and the axis of rotation of the other spindle is oriented in the radial direction. A grinding attachment of this type permits the hollow-grinding of tooth faces with grinding pencils that have a small diameter. A separate, high-speed motor serves to drive the grinding pencil.

Claims22

Dependent claims

A grinding attachment for a grinding machine, comprising:

a bearing support;
a first shaft mounted on the bearing support for rotation about a first axis, with the first shaft being drive-connected to a driving device, and having at least one grinding wheel mounted on one end thereof;
a second shaft mounted on the same bearing support of the grinding attachment for rotation about a second axis, with the second shaft being drive-connected to the driving device for operation at a higher rpm than that of the first shaft and having at least one grinding tool mounted on one end thereof;
and the second shaft is disposed in a region between the ends of the first shaft.

1 more element

A saw-blade grinding machine comprising:

a grinding attachment including a bearing support, a first shaft mounted on the bearing support for rotation about a first axis, with the first shaft being drive-connected to a driving device, and having at least one grinding wheel mounted on one end thereof, a second shaft mounted on the bearing support of the grinding attachment for rotation about a second axis, with the second shaft being drive-connected to the driving device for operation at a higher rpm than that of the first shaft and having at least one grinding tool mounted on one end thereof, and with the second shaft being disposed in a region between the ends of the first shaft;
a machine stand that is designed to be set up on a mounting surface;
a saw-blade carrier that is mounted on a surface of the machine stand for rotation about an axis transverse to surface of the machine stand, and has a mandrel for receiving and orienting a saw blade in a defined orientation of the saw blade and a securing element to secure the saw blade on the mandrel of the carrier;
an advancing device that is mounted on the surface of the machine stand and advances a saw-blade mounted on the carrier tooth-by-tooth into a machining position;
a holding device that is mounted on the surface of the machine stand and supports and fixedly holds the saw blade when a desired tooth is in the machining position;
a positioning device that is mounted on the surface of the machine stand for movement in at least two linear adjusting directions and on which the grinding attachment is mounted;
and
a control device that controls the positioning device the advancing device, the holding device, and the driving device.

5 more elements

Dependencies are inferred from the claim text.

Grinding attachment and saw-blade grinding machine with an HF spindle

Life of this patent

Grinding attachment and saw-blade grinding machine with an HF spindle

Life of this patent

Abstract

Claims22