Voltage acquisition control method and voltage acquisition control system for linear cutting equipment
阅读说明：本技术 一种线切割设备电压采集控制方法及电压采集控制系统 (Voltage acquisition control method and voltage acquisition control system for linear cutting equipment ) 是由 王松虎 王松海 于 2018-07-25 设计创作，主要内容包括：本发明公开了一种线切割设备电压采集控制方法,具体包括如下步骤：首先单片机内部信号采集模块对基于基准电压的放电端进行信号采集；接下来将采集回来的信号进行比对,并作出反馈：若采集回来的信号显示大于基准电压,则放电端的输出频率加快；若采集回来的信号显示小于基准电压,则放电端的输出频率减慢；本发明接着公开了一种线切割设备电压采集控制系统；本发明采用电压信号自动采集、反馈、自动调压的综合系统,可自动调节放电端的电压,使电压始终保持在基准电压上,此举不但提高了线切割加工的稳定性,而且大大提高了生产加工效率。(The invention discloses a voltage acquisition control method of linear cutting equipment, which specifically comprises the following steps: firstly, a signal acquisition module in the single chip microcomputer acquires a signal of a discharge end based on reference voltage; and then comparing the collected signals, and feeding back: if the collected signal shows that the signal is larger than the reference voltage, the output frequency of the discharge end is accelerated; if the collected signal shows that the signal is smaller than the reference voltage, the output frequency of the discharge end is reduced; the invention then discloses a voltage acquisition control system of the linear cutting equipment; the invention adopts a comprehensive system of automatic acquisition, feedback and automatic voltage regulation of voltage signals, and can automatically regulate the voltage of the discharge end, so that the voltage is always kept at the reference voltage, thereby not only improving the stability of linear cutting processing, but also greatly improving the production and processing efficiency.)
1. A voltage acquisition control method for linear cutting equipment specifically comprises the following steps:
(1) the single chip microcomputer internal signal acquisition module acquires signals of a discharge end based on reference voltage;
(2) comparing the collected signals, and feeding back: if the collected signal shows that the signal is larger than the reference voltage, the output frequency of the servo feeding is accelerated; if the collected signal shows that the signal is smaller than the reference voltage, the output frequency of the servo feed is slowed down.
2. The voltage acquisition control method for the linear cutting equipment as claimed in claim 1, wherein in the step (1), the signal acquisition time is calculated according to milliseconds, and the acquisition frequency is 1000 times per minute.
3. A voltage acquisition control system of linear cutting equipment comprises a control center consisting of a single chip microcomputer, a discharge end used for discharging a cutting end in the linear cutting equipment, and is characterized by further comprising a signal acquisition end, a signal feedback end, an automatic calculation end and a signal conversion end, wherein the signal acquisition end is respectively in control type electric connection with the control center and the discharge end; meanwhile, the signal conversion end and the control center form a control type electric connection; the servo feeding end is electrically connected with the discharging end and the control center respectively.
4. The voltage acquisition control system of a wire cutting device as claimed in claim 3, wherein the signal acquisition terminal comprises a signal acquisition module; the signal feedback end comprises a signal feedback module; the automatic calculation end comprises an automatic calculation module; the signal conversion end comprises a signal converter; the servo feeding end comprises a servo feeding adjusting module.
Technical Field
The invention relates to the technical field of linear cutting equipment, in particular to a voltage acquisition control method and a voltage acquisition control system of linear cutting equipment.
Background
A Wire electric Discharge machine (WEDM for short), belonging to the field of electric Machining, is characterized by that when the phenomenon and reason of corrosion damage of switch contact by spark Discharge are studied by former Soviet union, the instantaneous high temp. of electric spark can make local metal melt and oxidize and be corroded, so that it develops and invents the electric spark Machining method. The wire cutting machine was invented in the former soviet union in 1960, and China is the first country for industrial production. The principle of wire cutting is as follows: free positive ions and electrons accumulate in the field, quickly forming an ionized conductive channel. At this stage, a current is established between the plates. Resulting in numerous collisions between the particles, forming a plasma and rapidly rising to a high temperature of 8000 to 12000 c, momentarily melting some of the material on the surfaces of the two conductors, while a bubble is formed due to the evaporation of the electrodes and the dielectric liquid and its pressure rises regularly up to very high levels. The current is then interrupted and the temperature suddenly drops, causing the bubbles to implode, creating a motive force that throws the dissolved material out of the crater, and the corroded material recondenses into small spheres in the dielectric fluid and is drained away by the dielectric fluid. Then, the discharge phenomenon is uniform and consistent through monitoring and control of NC control and execution of a servo mechanism. In the above process, an index, namely, the stability of the discharge, is very important, because the discharge gap voltage is kept in an unstable state basically during the wire cutting process and is stabilized by means of manual adjustment, but the experience of workers is usually required, and therefore, the production process efficiency is greatly reduced.
Disclosure of Invention
The invention aims at the problems and provides a voltage acquisition control method and a voltage acquisition control system of linear cutting equipment.
In order to achieve the technical purpose, the invention adopts a voltage acquisition control method of linear cutting equipment, which specifically comprises the following steps:
(1) the single chip microcomputer internal signal acquisition module acquires signals of a discharge end based on reference voltage;
(2) comparing the collected signals, and feeding back: if the collected signal shows that the signal is larger than the reference voltage, the output frequency of the servo feeding is accelerated; if the collected signal shows that the signal is smaller than the reference voltage, the output frequency of the servo feed is slowed down.
Preferably, in step (1), the signal acquisition time is calculated in milliseconds, and the acquisition frequency is 1000 times per minute.
On the basis, the invention further discloses a voltage acquisition control system of the linear cutting equipment, which comprises a control center consisting of a single chip microcomputer, a discharge end used for discharging a cutting end in the linear cutting equipment, a signal acquisition end, a signal feedback end, an automatic calculation end and a signal conversion end, wherein the signal acquisition end is respectively in control type electric connection with the control center and the discharge end; meanwhile, the signal conversion end and the control center form a control type electric connection; the servo feeding end is electrically connected with the discharging end and the control center respectively.
Preferably, the signal acquisition end comprises a signal acquisition module; the signal feedback end comprises a signal feedback module; the automatic calculation end comprises an automatic calculation module; the signal conversion end comprises a signal converter; the adjustment end includes a servo feed adjustment module.
The invention adopts a comprehensive system of automatic acquisition, feedback and automatic adjustment of voltage signals, and can automatically adjust the voltage of the discharge gap, so that the voltage is always kept at the reference voltage, thereby not only improving the stability of linear cutting processing, but also greatly improving the production and processing efficiency.
Drawings
FIG. 1 is a cross-sectional structural view of the present invention;
1. a control center; 2. a discharge end; 3. a signal acquisition module; 4. a signal feedback module; 5. an automatic calculation module; 6. a signal converter; 7. and a servo feed adjusting module.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, a method for controlling voltage acquisition of a wire cutting apparatus specifically includes the following steps:
(1) the single chip microcomputer internal signal acquisition module acquires signals of the discharge end 2 based on the reference voltage; in actual operation, the acquisition module can be positioned inside the singlechip or externally arranged, and the acquisition module and the singlechip are always in control type electric connection;
(2) comparing the collected signals, and feeding back: if the collected signal shows that the signal is larger than the reference voltage, the output frequency of the servo feeding is accelerated; if the collected signal shows that the signal is smaller than the reference voltage, the output frequency of the servo feed is slowed down.
In the step (1), the signal acquisition time is calculated according to milliseconds, and the acquisition frequency is 1000 times per minute.
On the basis, the invention further discloses a voltage acquisition control system of the linear cutting equipment, which comprises a control center 1 consisting of a single chip microcomputer, a discharge end 2 used for discharging a cutting end in the linear cutting equipment, a signal acquisition end which is respectively electrically connected with the control center 1 and the discharge end 2 in a control mode, and a signal feedback end, an automatic calculation end and a signal conversion end.
In the system, a signal acquisition end is electrically connected with a signal feedback end, an automatic calculation end and a signal conversion end in a control type; meanwhile, the signal conversion end and the control center form a control type electric connection.
The invention also comprises a servo feeding end which is respectively electrically connected with the discharging end 2 and the control center 1.
In the present invention, the preferred signal acquisition end comprises a signal acquisition module 3; the preferred signal feedback end comprises a signal feedback module 4; the preferred automatic computation end comprises an
The system is specifically operated as follows: the signal acquisition module 3 acquires a signal of the discharge voltage of the discharge end 2 at a frequency of 1000 times per minute, and sends the acquired signal to the signal feedback module 4, the signal feedback module 4 sends the signal to the
In general, the invention adopts a comprehensive system of automatic acquisition, feedback and automatic adjustment of voltage signals, and can automatically adjust the gap voltage of the discharge end, so that the voltage is always kept at the reference voltage, thereby not only improving the stability of linear cutting processing, but also greatly improving the production and processing efficiency.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
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