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External active axial-shift compensating method and device for rotary main-shaft cutter

An active compensation and cutting tool technology, applied in metal processing, etc., can solve the problem of doubling the difficulty of equipment cost system control, etc., and achieve the effects of reducing the complexity of the spindle structure and manufacturing difficulty, good cutting quality, and low cost

Inactive Publication Date: 2002-05-08
IND TECH RES INST
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Problems solved by technology

The disadvantage is that the workpiece needs to go through two cutting processes, and the cutting equipment needs to be equipped with two sets of air bearing spindle systems. The cost of equipment and the difficulty of system control are relatively doubled, and it is not a perfect solution.

Method used

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  • External active axial-shift compensating method and device for rotary main-shaft cutter
  • External active axial-shift compensating method and device for rotary main-shaft cutter
  • External active axial-shift compensating method and device for rotary main-shaft cutter

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Embodiment Construction

[0016] The external active compensation method and device for the axial deflection of the spindle tool of the present invention mainly utilizes the active deflection control technology and is applied to the outside of the spindle, and the sensor outside the spindle directly measures the axial deflection of the tool, and the obtained measurement data As a feedback signal, it is used to control the cutting point of the tool to maintain the predetermined axial positioning accuracy. Since the components of the active compensation device of the present invention are added outside the main shaft in the form of additional components, it is not necessary to change the original structure of the original main shaft structure. In addition to greatly reducing the structural complexity and manufacturing difficulty of the main shaft, it is more cost-effective. Relatively low advantage, and can achieve better cutting quality. The device, method, action mode, and achievable effects of the pre...

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Abstract

The external active compensator independent from the main shaft includes an extending frame between the base and a position near the cutter, a sensor in the end of the extending frame and corresponding to the cutter, several actuators between the main shaft and the base to drive the whole main shaft for small amount of axial displacement relatively to the base, and a control module. The control module accepts the axial shift displacement of the cutter from the sensor and controls the small amount of feeding for the actuators, so that the whole main shaft together with the cutter produces small amount of axial compensating displacement.

Description

field of invention [0001] The present invention relates to an external active compensation method and device for the axial deflection of the spindle tool, in particular to an air-floating spindle device, which directly measures the axial deflection of the tool as a feedback signal by means of a sensor. A method and device for controlling the cutting point of a tool at an appropriate axial positioning accuracy by an actuator device installed outside the air bearing spindle device to drive the spindle to compensate for displacement in the axial direction. Background technique [0002] When the traditional hard and brittle material cutting machine cuts hard and brittle material workpieces, such as wafers (Wafer), glass or ceramic materials (Ceramic), etc., it is easy to produce kerf cracks and damage to the back of the workpiece. Discuss the cause is that when the main shaft is cutting off, the cutting tool is caused by the axial deflection of the main shaft, the cumulative err...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D5/00B26D5/02
Inventor 王维汉黄荣宏陈昌铭陈来胜
Owner IND TECH RES INST
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