US 7,874,893 B2 · Honing method and honing control device

Abstract

A honing method and honing control device suitable for the honing having a large processing area is provided. The honing control device includes a grinder and an expansion member for disposition in a processing hole of a workpiece. The amount of an expanding movement when the grinder contacts the inner surface of a gauge hole via the expansion member is stored as a target expansion amount by inserting a honing head into the gauge hole having the same size as a target processing diameter of a master gauge. Then, a honing of an inner surface of the processing hole is performed by inserting the honing head within a processing hole of a workpiece moving the grinder towards an outer side of a diametrical direction by the expansion member installed within the honing head to rotate the honing head. The honing is completed when the amount of the expanding movement of the grinder reaches a target expansion amount established by the master gauge.

Claims15

Dependent claims

A method of honing a workpiece having a hole to be processed by inserting a honing head with a grinder at an outer periphery thereof into the hole and moving the grinder towards an outer side of a diametrical direction of the honing head with an expansion member installed within the honing head to press an inner surface of the hole, the method comprising:

storing an amount of an expanding movement as a target expansion amount determined when the honing head is inserted into a gauge hole of a master gauge having a same size as a target processing diameter and the grinder contacts an inner surface of the gauge hole with the expansion member;
honing an inner surface of the hole by inserting the honing head into the hole, moving the grinder towards the outer side of the diametrical direction with the expansion member installed within the honing head, and rotating the honing head;
and
completing the honing when a value obtained by subtracting an amount of an advancement of the grinder based on a distortion of the workpiece generated by a processing reaction force of the grinder against the hole from the amount of the expanding movement of the grinder reaches the target expansion amount established using the master gauge.

1 more element

A honing control device for performing a honing process wherein a honing head with a grinder at an outer periphery thereof is inserted into a hole of a workpiece and the grinder moves towards an outer side of a diametrical direction of the honing head with an expansion member installed within the honing head to press an inner surface of the hole, the device comprising:

means for detecting a processing reaction force of the grinder against the hole, the means installed on the honing head;
means for storing an amount of an expanding movement as a target expansion amount when the honing head is inserted into a gauge hole of a master gauge having a same size as a target processing diameter and the grinder contacts an inner surface of the gauge hole with the expansion member;
and
control means for determining a completion of the honing when a value obtained by subtracting an amount of advancement of the grinder based on a distortion along a radial direction of the workpiece generated by the processing reaction force from the amount of the expanding movement of the grinder reaches the target expansion amount established using the master gauge in the honing process wherein the honing head is inserted within the hole of the workpiece.

1 more element

Dependencies are inferred from the claim text.

Honing method and honing control device

Life of this patent

Honing method and honing control device

Life of this patent

Abstract

Claims15