Control system for a cam follower and tool

Claim 2

A control system for a cam follower and tool, comprising: a cam having a predetermined shape, means, connected to the cam, for rotating and supporting the cam, a cam follower for contacting said cam along said predetermined shape, a driven section connected to said cam follower, means, connected to the driven section, for driving said driven section, a guide means supporting said driven section, a detector means, operatively connected to the cam follower, for detecting the force of contact between said cam and said cam follower, a control circuit means, connected to the detector means, for arithmetically comparing the force of contact detected by said detector means with a preset value, and a load compensator means, connected to said cam follower, for loading said cam follower with a predetermined force in accordance with a signal from said control circuit means, whereby said force of contact becomes substantially equal to said preset value.

Claim 3

A control system for a lathe, including an end cam having a predetermined shape and being fixed to a main spindle of the lathe, motor means for rotating the main spindle and the end cam thereon, a cam follower following the shape of the end cam, a driven section connected to said cam follower, and a tool means for cutting a tape guide surface and lead, said cutting tool being fixed to said driven section, said control system being characterized by: a detector means, operatively connected to the cam follower, for detecting the force of contact between said end cam and said cam follower, a control circuit means, connected to the detector means, for arithmetically comparing the force of contact detected by said detector means with a preset force, and a load compensator means, connected to the cam follower, for loading said driven section with a predetermined force in accordance with a signal from said control circuit means, whereby said contact force becomes substantially equal to said preset force.

Claim 4

A control system for a lathe, including an end cam having a predetermined shape and being fixed to a main spindle of the lathe, motor means for rotating the main spindle and the end cam thereon, a cam follower following the shape of the end cam, a driven section connected to said cam follower, and a tool means for cutting a tape guide surface and lead, said cutting tool being fixed to said driven section, said control system being characterized by: a detector means, operatively connected to the cam follower, for detecting the force of contact between said end cam and said cam follower, a control circuit means, connected to the detector means, for arithmetically comparing the force of contact detected by said detector means with a preset force, and a load compensator means, connected to the cam follower, for loading said driven section with a predetermined force in accordance with a signal from said control circuit means, whereby said contact force becomes substantially equal to said preset force.

Claim 5

The control system as set forth in claim 2, wherein: said load compensator means includes a plunger connected to said driven section, and a solenoid electromagnet disposed around said plunger and adapted to reciprocate the plunger by magnetic force.

Claim 6

A control system for a cam follower and tool comprising: a cam having a predetermined shape, means, connected to the cam, for rotating and supporting the cam, a cam follower for contacting said cam along said predetermined shape, a driven section connected to said cam follower, means, connected to the driven section, for driving said driven section, a guide means for supporting said driven section, a spring means, installed between said driven section and said guide means, for urging said cam follower against said cam, and a load compensator means, connected to said cam follower, for loading said cam follower with a force P found by the following equation: P=mx+kx-f.sub.0 where P is a force loaded on the cam follower; m is a mass of the cam follower; x is an acceleration of the cam follower, which acceleration is produced by the predetermined shape of the cam at any given moment as the cam follower follows the cam; k is a spring constant; x is a position of the cam follower at any given moment; and f 0 is a preset force with which the cam follower contacts the cam.

Claim 7

A control system for a cam follower and tool comprising: a cam having a predetermined shape, means, connected to the cam, for rotating and supporting the cam, a cam follower for contacting said cam along said predetermined shape, a driven section connected to said cam follower, means, connected to the driven section, for driving said driven section, a guide means for supporting said driven section, a spring means, installed between said driven section and said guide means, for urging said cam follower against said cam, and a load compensator means, connected to said cam follower, for loading said cam follower with a force P found by the following equation: P=mx+kx-f.sub.0 where P is a force loaded on the cam follower; m is a mass of the cam follower; x is an acceleration of the cam follower, which acceleration is produced by the predetermined shape of the cam at any given moment as the cam follower follows the cam; k is a spring constant; x is a position of the cam follower at any given moment; and f 0 is a preset force with which the cam follower contacts the cam.

Claim 8

A control system for a lathe, including an end cam having a predetermined shape and fixed to a main spindle of the lathe, means for rotating the main spindle and the end cam, a cam follower following the shape of the end cam, a driven section connected to said cam follower, and a tool means for cutting a tape guide surface and lead, said cutting tool means being fixed to said driven section, said control system being characterized in that: a load compensator means for loading said cam follower with a force P determined by the following equation is installed at a rear end of said cam follower: p=mx+kx-f.sub.0 wherein P is a load on the cam follower; m is a mass of the cam follower; x is an acceleration of the cam follower; k is a spring constant of a spring means, installed adjacent to said driven section, for urging the cam follower against the end cam; x is a position of the cam follower at any given moment; and f 0 is a preset force of contact between the end cam and the cam follower.

Claim 9

A control system for a lathe, including an end cam having a predetermined shape and fixed to a main spindle of the lathe, means for rotating the main spindle and the end cam, a cam follower following the shape of the end cam, a driven section connected to said cam follower, and a tool means for cutting a tape guide surface and lead, said cutting tool means being fixed to said driven section, said control system being characterized in that: a load compensator means for loading said cam follower with a force P determined by the following equation is installed at a rear end of said cam follower: p=mx+kx-f.sub.0 wherein P is a load on the cam follower; m is a mass of the cam follower; x is an acceleration of the cam follower; k is a spring constant of a spring means, installed adjacent to said driven section, for urging the cam follower against the end cam; x is a position of the cam follower at any given moment; and f 0 is a preset force of contact between the end cam and the cam follower.