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Servo drive system and servo drive method for numerically controlled tool rest

A servo drive, servo drive technology, applied in the direction of digital control, electrical program control, etc., can solve the problem of the servo drive being easy to lose or increase pulses, and achieve the effect of avoiding inaccurate positioning, saving costs, and reducing the amount of interfaces and programming.

Inactive Publication Date: 2012-08-01
SUZHOU INOVANCE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a CNC tool post servo drive system for the defect that the CNC upper computer sends external position commands in the form of pulses to control the servo driver to easily lose or increase pulses in the existing CNC tool post control framework. and method, the CNC upper computer sends the tool change command to the servo driver, the servo driver calculates the path, and directly controls the tool holder through the tool holder pop-up retracting mechanism

Method used

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  • Servo drive system and servo drive method for numerically controlled tool rest
  • Servo drive system and servo drive method for numerically controlled tool rest
  • Servo drive system and servo drive method for numerically controlled tool rest

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Embodiment Construction

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] see figure 1 , which is a block diagram of the first embodiment of the servo drive system of the CNC tool rest according to the present invention. like figure 1 As shown, the servo drive system of the CNC tool rest provided by this embodiment includes: a tool rest device 10 , a numerical control host computer 20 , a servo driver 30 , a tool rest ejection and retraction mechanism 40 and a servo motor 50 .

[0037] The tool holder device 10 of the present invention may be a tool holder used by various types of machine tools or machining centers. The tool holder device 10 includes a plurality of tool holders, and each tool holder is programmed with a tool number in sequence. The numerical control host computer 20 can send a tool change com...

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PUM

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Abstract

The invention relates to a servo drive system and a servo drive method for a numerically controlled tool rest. The system comprises a numerically controlled upper computer, a servo driver, a tool rest popup and withdrawal mechanism, a servo motor and a tool rest device. The numerically controlled upper computer sends out tool changing orders including a target position of an appointed tool rest. The servo driver receives the tool changing orders, calculates the rotation direction and distance of the tool rest according to the current position and the target position of the tool rest, controls the tool rest popup and withdrawal mechanism to pop up the tool rest and generate motor control signals to the servo motor so as to control the tool rest to rotate to the target position, and controls the tool rest popup and withdrawal mechanism to withdraw the tool rest. The servo driver of the servo drive system directly receives the tool changing orders to generate internal position orders instead of receiving the pulse-form orders generated by the numerically controlled upper computer, so that inaccuracy in positioning caused by loss of pulse orders can be avoided. Further, programming quantity of the numerically controlled upper computer is reduced, and a tool rest controller is omitted.

Description

technical field [0001] The invention relates to the field of numerical control machine tool control, and more particularly, to a servo drive system and method for a numerical control tool rest. Background technique [0002] The tool magazine of the CNC machining center and the tool holder (turret) of the CNC machine tool are very commonly used CNC subsystems, which are used to change the position of the tool holder and switch different tool holders to complete the technological processes such as turning, milling, and drilling. At present, the control structure of the CNC tool rest is mainly controlled by the combination of the numerical control host computer, the tool rest controller and the servo driver. The CNC upper computer calculates the path according to the tool change command and sends an external position command in the form of pulses to the tool holder controller, and the tool holder controller controls the servo driver to complete the tool holder positioning. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
Inventor 张英杰
Owner SUZHOU INOVANCE TECH CO LTD
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