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A servo control method for thread milling machine

A thread milling machine and servo control technology, applied in the field of servo control, can solve problems such as low torque at low speed, inability to adjust speed, tool damage, etc., to reduce torque fluctuations, ensure high torque output, and reduce tool damage.

Active Publication Date: 2016-09-28
SHANGHAI INVT INDUSTRY TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the thread milling machine is working, it usually needs a larger motor to drive the C-axis. If an asynchronous motor is used to drive, this operation mode often brings the following problems: the energy generated by the large motor to drive the C-axis The power consumption is relatively high; the torque fluctuation of the large motor to drive the C-axis is large, making it difficult to guarantee the accuracy; the large motor to drive the C-axis makes the low-speed torque small and the speed cannot be adjusted, which makes the speed stability low and causes screw threads. The start of the milling machine is not smooth; the torque of the traditional motor driving the C-axis cannot be controlled, which will cause frequent damage to the tool

Method used

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  • A servo control method for thread milling machine
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Embodiment Construction

[0029] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, a servo control device for a thread milling machine in this embodiment is connected with the C-axis of the thread milling machine, and the C-axis is the running axis of the thread milling machine. The connection method can be a known mechanical connection method. The servo control The device includes: a synchronous servo motor connected to the C-axis of the thread milling machine to drive the C-axis to run; a servo controller connected to the synchronous servo motor and the upper computer respectively, and the connection method can be a known electrical connection method , used to control the operation of the above-mentioned synchronous servo motor in a vector control mode. The upper computer can be a known control device such as a computer. The servo controller is connected to the upper computer. By detectin...

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Abstract

The invention discloses a servo control device for a thread milling machine. The servo control device is connected with a shaft C of the thread milling machine, and is characterized by comprising a synchronous servo motor, a servo controller and a motor angle sensor; the synchronous servo motor is connected with the shaft C of the thread milling machine and is used for driving the shaft C to run; the servo controller is connected with the synchronous servo motor, and the synchronous servo motor runs under the control of the servo controller in a vector control mode; the motor angle sensor is connected with the servo controller and the synchronous servo motor respectively and is used for detecting running angels of the synchronous servo motor, converting angle data into corresponding signals and transmitting the corresponding signals to the servo controller. The invention further provides a servo control method for the thread milling machine. The servo control device and the servo control method have the advantages of low energy consumption, high running precision, stable speeds and controllable torque.

Description

technical field [0001] The invention relates to a servo control technology, in particular to a servo control method for a thread milling machine. Background technique [0002] A thread milling machine is a processing machine tool used for milling threads and is an important equipment in thread processing. When the thread milling machine is working, it usually needs a larger motor to drive the C-axis. If an asynchronous motor is used to drive, this operation mode often brings the following problems: the energy generated by the large motor to drive the C-axis The power consumption is relatively high; the torque fluctuation of the large motor to drive the C-axis is large, making it difficult to guarantee the accuracy; the large motor to drive the C-axis makes the low-speed torque small and the speed cannot be adjusted, which makes the speed stability low and causes screw threads. The start of the milling machine is not smooth; the torque of the traditional motor driving the C-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/12
CPCB23Q15/12
Inventor 甄力宋敬育
Owner SHANGHAI INVT INDUSTRY TECHNOLOGY CO LTD
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