Machine tool and control method for machine tool

Patent metadata

Field	Value
Publication number	US-10773349-B2
Application number	US-201816133942-A
Country	US
Kind code	B2
Filing date	Sep 18, 2018
Priority date	Sep 25, 2017
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

A machine tool having a tool magazine for changing a tool attached to a spindle is equipped with an initial operation speed setting unit configured to set the operation speed of the tool magazine to an initial operation speed, an operation speed adjusting unit configured to be operated by the user to thereby adjust the operation speed of the tool magazine relative to the initial operation speed, an actuator configured to actuate the tool magazine, an operation speed acquisition unit configured to acquire the operation speed of the tool magazine after adjustment of the operation speed made by the operation speed adjusting unit, and an actuator control unit configured to control the actuator to actuate the tool magazine at the operation speed acquired by the operation speed acquisition unit.

First claim

What is claimed is:

1. A machine tool comprising a tool magazine configured to change a tool attached to a spindle, the machine tool further comprising:
a control device including:
an initial turning operation speed setter that is configured to set an initial turning operation speed of a turning operation of the tool magazine; and
an initial swinging operation speed setter configured to set an initial swinging operation speed of a swinging operation of the tool magazine with respect to the spindle;

a display device including:
a turning operation speed slider that is movable along a first bar of the display device such that a user can adjust a turning operation speed of the turning operation of the tool magazine relative to the initial turning operation speed; and
a swinging operation speed slider that is movable along a second bar of the display device such that the user can adjust a swinging operation speed of the swinging operation of the tool magazine relative to the initial swinging operation speed;

an actuator configured to actuate the tool magazine;
an actuator control configured to control the actuator to actuate the tool magazine at the turning operation speed of the turning operation,
wherein:
the control device is configured to acquire the turning operation speed of the turning operation of the tool magazine after adjustment of said turning operation speed of said turning operation;
the tool magazine is a turret provided with a plurality of grips, each of which is configured to hold the tool;
the turret is configured to perform the turning operation for indexing the tool and the swinging operation for attaching the tool to the spindle.

2. The machine tool according to claim 1 , wherein the display device is configured to display recommended turning operation speed information indicative of an adjusting position, the adjusting position corresponding to a recommended turning operation speed of the tool magazine recommended for a weight of the tool.

3. The machine tool according to claim 1 , wherein the control device is further configured to:
acquire a weight of the tool changed by the tool magazine; and
acquire a recommended turning operation speed of the tool magazine recommended for the acquired weight of the tool,
wherein the display device is further configured to display recommended turning operation speed information indicative of an adjusting position, the adjusting position corresponding to the acquired recommended turning operation speed.

4. The machine tool according to claim 3 , wherein the display device is further configured to, if the turning operation speed adjusted by the user is faster than the recommended turning operation speed, notify the user that the turning operation speed adjusted by the user is faster than the recommended turning operation speed.

5. The machine tool according to claim 1 , wherein the control device is further configured to:
acquire a load on the actuator; and
acquire a recommended turning operation speed of the tool magazine recommended for the acquired load on the actuator,
wherein the display device is further configured to display recommended turning operation speed information indicative of an adjusting position, the adjusting position corresponding to the acquired recommended turning operation speed.

6. The machine tool according to claim 1 , wherein the control device is further configured to:
acquire a weight of the tool changed by the tool magazine; and
acquire a recommended turning operation speed of the tool magazine recommended for the acquired weight of the tool,
wherein the initial turning operation speed setter is further configured to set the recommended turning operation speed as the initial turning operation speed.

7. The machine tool according to claim 1 , wherein the control device is further configured to:
acquire a load on the actuator; and
acquire a recommended turning operation speed of the tool magazine recommended for the acquired load on the actuator,
wherein the initial turning operation speed setter is further configured to set the recommended turning operation speed as the initial turning operation speed.

Assignees

• Fanuc Corp

Inventors

• Isobe Gaku

Classifications

• B23Q3/15706

  a single tool being inserted in a spindle directly from a storage device, i.e. without using transfer devices (B23Q3/15786 takes precedence) · CPC title

• G05B2219/50242

  Tool changer and revolver fixed on spindle · CPC title

• B23Q3/15534 Primary

  Magazines mounted on the spindle · CPC title

• Y10T483/1795

  Matrix indexes selected tool to transfer position · CPC title

• Y10T483/1755

  Plural tool holders pivotable about common axis · CPC title