Tool compensating device for the computerized numerically controlled machine tool
AssigneeMarposs Societa' Per Azioni
InventorMario D'Antonio
Life of this patent
Estimating the term…
Abstract
An apparatus for sensing a position of a cutting tool in a computer numerical controlled machine tool is provided including an arm supporting and moving a sensor that cooperates with the cutting tool. Also provided is a housing including a gear assembly and a driving motor for moving the arm, and a stopper for defining an operating position of the arm. The driving motor supplies rotation force to the gear assembly so as to pivot the arm against the stopper and then apply force to an elastic member. When the driving motor is stopped, the elastic member applies a force, through the gear assembly, urging the arm against the stopper in the operating position.
Claims20
A tool compensating apparatus for a computer numerically controlled machine tool, the apparatus comprising:
- a first sensor for sensing a position of a cutting tool in the computer numerically controlled machine tool;
- an arm for moving the first sensor to a predetermined position for sensing the position of the cutting tool;
- a gear assembly for pivoting the arm in a range of predetermined angles, the gear assembly being engaged with the arm;
- a driving motor for supplying the gear assembly with a driving force;
- and
- a housing for accommodating the gear assembly, a stopper and the driving motor.
An arm assembly for a tool compensating apparatus for a machine tool, the arm assembly being adapted to support and move a sensor to a predetermined position for sensing a position of a cutting tool, the arm assembly comprising:
- an arm;
- a gear assembly for pivoting the arm in a range of predetermined angles;
- a driving motor for supplying the gear assembly with a driving force;
- and
- a stopper for restraining rotation of the arm and defining the predetermined position of said first sensor,
- wherein the gear assembly comprises an elastic member adapted to apply a force urging said arm towards said stopper.
A tool compensating apparatus for a machine tool, the apparatus comprising:
- a first sensor for sensing a position of a cutting tool in the machine tool;
- an arm for moving the first sensor to a predetermined position for sensing the position of the cutting tool;
- a gear assembly with a worm wheel coupled to the arm for pivoting the arm in a range of predetermined angles;
- a driving motor for supplying the gear assembly with a driving force;
- and
- a stopper for restraining the rotation of the worm wheel in order to limit a pivoting angle of the arm and define said predetermined position of the first sensor,
- wherein the gear assembly includes an elastic member, the driving force of the driving motor being applied to the elastic member when the rotation of the worm wheel is restrained by the stopper, the elastic member being adapted to apply a force urging said arm towards said stopper after the operation of the driving motor is stopped.
Dependencies are inferred from the claim text.