US 2010/0062692 A1 · HONING METHOD AND HONING MACHINE

Abstract

A honing processing technology for making uniform the load applied to honing grindstones by cooperating the reciprocal motion of the honing grindstones with the feeding and expanding motion at high precision by a specified relation. Servo motors are used as drive sources respectively for spindle reciprocal drive part and grindstone depth cutting part, and these two servo motors are mutually cooperated, and the feeding and expanding motion of the honing grindstones is controlled to be synchronized and tuned with the ascending and descending (reciprocal) motion of the honing tool so that the processing load applied to the honing grindstones may be averaged. Hence, without modifying the basis existing mechanical elements, the load applied to the honing grindstones may be averaged, and the honing process may be stabilized in precision and enhanced in precision.

Claims14

Dependent claims

A honing method of honing the inner circumference of a work by moving a honing tool having a honing grindstone reciprocally in the axial direction of the inner circumference of the work, rotating about the axial line, and feeding and expanding the honing grindstone at a specific depth of cut by mechanical driving means,

wherein a spindle reciprocal driving servo motor and a depth setting driving servo motor are used respectively as a spindle reciprocal driving source for moving a rotational spindle having the honing tool reciprocally in the axial direction of the inner circumference of the work, and a depth cutting driving source for feeding and expanding the honing grindstone, and
the motions of the two servo motors are mutually cooperated, so that the feeding and expanding motion of the honing grindstone is controlled to be synchronized and tuned with the reciprocal motion of the honing tool in order that the processing load applied to the honing grindstone may be made uniform.

A honing machine for moving a honing tool having a honing grindstone reciprocally in the axial direction of the inner circumference of a work, rotating about the axial line, and honing the inner circumference of the work by the honing grindstone, comprising:

a rotational spindle supported to be movable reciprocally in the axial direction of the inner circumference of the work, and to be rotatable about the axial line,
spindle rotating means for rotating and driving the rotational spindle about the axial line,
spindle reciprocating means for moving the rotational spindle reciprocally in the axial direction of the inner circumference,
a honing tool mounted on the leading end of the rotational spindle, being provided with an expandable and contractable honing grindstone having a wheel surface along the inner circumference,
grindstone depth cutting means for feeding and expanding the honing grindstone of the honing tool with a specified depth of cut, and
control means for controlling automatically by mutually cooperating with the spindle rotating means, spindle reciprocating means, and grindstone depth cutting means,
wherein drive sources of the spindle reciprocating means and the grindstone depth cutting means are realized respectively by a spindle reciprocal driving servo motor and a depth setting servo motor, and
the control means mutually cooperates the motions of these two servo motors, so that the feeding and expanding motion of the honing grindstone is controlled to be synchronized and tuned with the reciprocal motion of the honing tool in order that the processing load applied to the honing grindstone may be made uniform.

5 more elements

Dependencies are inferred from the claim text.

Honing method and honing machine

Life of this patent

Honing method and honing machine

Life of this patent

Abstract

Claims14