Machine tool control circuit
A control circuit, machine tool control technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of untimely protection, multi-system volume, slow response, etc., and achieve the effect of simple structure, small size and low noise
Active Publication Date: 2016-01-20
SHENZHEN MEGMEET DRIVE TECH +1
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Problems solved by technology
[0003] The traditional machine tool control circuit has the following disadvantages, such as: the machine tool control box is large and occupies too much system volume; the machine tool circuit wiring is complicated, requiring many wiring boards, and the possibility of misoperation is high; mechanical switches and contactors are noisy. , the response speed of the control contactor is slow, the protection time of the motor starter is long and the response is slow; the protection is not timely; the mechanical circuit breaker is easy to arc under the high current state, and the safety performance is not good
Method used
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Embodiment Construction
[0023] The structure of the machine tool control circuit embodiment of the present invention is as follows: Figure 1 to Figure 6 shown.
[0024] like figure 1 As shown, the machine tool control circuit in the embodiment of the present invention includes a power supply circuit and a control circuit. The power supply circuit provides three-phase power to the control circuit. The switching devices of the power supply circuit and the control circuit all use power electronic devices. The power supply circuit and the control circuit are respectively integrated into respective circuit boards.
[0025] The power circuit includes sequentially connected EMC interference circuits, phase sequence detection and circuit breakers. Its main function is anti-interference, judging the phase sequence of three-phase electricity, separating three-phase and single-phase electricity for multi-channel input, and protecting against excessive current exceeding the rated value of the circuit breaker....
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The invention discloses a control circuit of a machine tool. The control circuit comprises a power supply circuit and a control circuit, wherein the power supply circuit is used for providing a three-phase power supply to the control circuit, switching devices of the power supply circuit and the control circuit are power electronic devices, and the power supply circuit and the control circuit are integrated in a circuit board together or separately. Switching devices are power electronic devices, the power supply circuit and the control circuit are integrated in a circuit board together or separately, and the control circuit has the advantages of being simple in structure, low in noise, small in volume, quick in response, safe and reliable.
Description
[technical field] [0001] The invention relates to a machine tool circuit, in particular to a machine tool control circuit. [Background technique] [0002] The machine tool control circuit in the traditional machine tool industry includes many circuit breakers, contactors, motor starters, intermediate relays and other control components, which are used to realize the start and stop control of the internal motor of the machine tool, the forward and reverse switching control, and the control of the electrical part of the valve. ; Among them, the main purpose of the circuit breaker is to protect the input power supply under abnormal conditions, and the contactor controls the on-off of the three-phase power supply and the positive and negative switching motor control. The motor starter is used to start the motor and protect the motor under various abnormal conditions, and the intermediate relay is used as the control switch of the upper computer to control the valve components. ...
Claims
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IPC IPC(8): G05B19/18
Inventor 黄舜李晓雷郭生侯春明王志鑫赵巍
Owner SHENZHEN MEGMEET DRIVE TECH