Numerical control device

A technology of numerical control device and control part, which is applied in the direction of automatic control device, positioning device, feeding device, etc., can solve the problem of fatigue damage of components
CN104002189AActive Publication Date: 2014-08-27BROTHER KOGYO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BROTHER KOGYO KK
Publication Date
2014-08-27

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Abstract

The invention relates to a numerical control device capable of reducing noises generated in tool replacement motions and machine tool load generated in tool replacement motions; in a rising stroke of the tool replacing motion, the numerical control device can reduce a mobile speed of a main shaft head after the main shaft head rises in a maximum speed; when a plate cam body abuts against a cam driven piece, the mobile speed is lowered; the numerical control device switches the mobile speed of the main shaft head into the maximum speed; in a decreasing stroke, the numerical control device can reduce the mobile speed of the main shaft head after the main shaft head decreases in the highest speed, so when a tool keeping device is arranged on the main shaft, the mobile speed is lowered; the numerical control device then switch the mobile speed of the main shaft to the maximum speed; therefore, the numerical control device can shorten a tool replacing time, reduces noises generated in tool replacement motions and machine tool load generated in tool replacement motions.
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Description

technical field

[0001] The invention relates to a numerical control device. Background technique

[0002] The CNC device controls the movement of the machine tool. The machine tool includes a spindle head, a spindle, and an automatic tool changer (hereinafter referred to as ATC). The main shaft head is provided so as to be able to ascend and descend along a column erected on the base portion, and supports the main shaft so as to be rotatable. The spindle head has a tool holding mechanism inside it. The tool holding mechanism holds the tool attached to the spindle. An ATC with a tool library is disclosed in Japanese Patent Laid-Open Publication No. 206227 of 2012. The disk-shaped tool magazine is fixed on the frame provided on the column and arranged on the front side of the spindle head. The tool storehouse is provided with a plurality of holding arms on its periphery, and the tool storehouse can be rotated. The grip arm has a grip portion at its front end. The holdin...

Claims

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