Inverter is the application of frequency conversion technology and microelectronics technology, by changing the motor working way of power frequency to control the power of ac motor control device. Inverter is a kind of electric energy control device, it is the use of power semiconductor devices the on-off function of the power frequency power conversion to another frequency, can realize the ac asynchronous motor soft start, frequency control of motor speed, improve the operation accuracy, change power factor, over-current, over-voltage, overload protection, etc. With the continually improvement of the industrial automation level, inverter used in the field of tapping machine is becoming more and more widely.
Inverter can play three roles in tapping machine. High performance, now basically all inverters are required to vector control methods, and appears to a small amount of different levels of control structure and algorithm; Easy to grasp, the user demand for the inverter gradually translates into the locale device, and add setup tool on software, through the user operation simplifies the debugging process; Functional modularity and intelligent demand are also gradually rise.
In tapping machine use inverter, also played the two protection functions. When found the abnormal state, take correction action automatically, such as over current stall prevent, the regeneration overvoltage stall prevention; when found abnormal, blockade power semiconductor devices control signal, make the machine automatically stop. Such as current cut off, regeneration voltage is cut off, semiconductor cooling fan overheating and instantaneous power cut protection, etc.
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The principle of precision tapping head shaft head
Power head also calls the dynamic cutter holder, is installed on the power tool turret, is driven by servo motor. This kind of cutter holder normally used in car milling compound machine, there are a few can be used in the driving force of knife tower on the machining center.
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Affect machinery machining precision factor
Product quality is good or bad depends on the machining precision, and there are many factors that can affect the machining precision of machine, the following is produced during machining error factor.
1, cutter manufacture error
Different kinds of cutter caused errors have different influence on machining precision. General cutter’s machining precision has not directly i...
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Multi-axis drilling machine common failures and troubleshooting methods
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Li: there is no deflation in China problem, it is not easy to 7% growth this year
On the afternoon of March 31, 2015, the state council premier li keqiang at the great hall of the people with an interview with the financial times editor-in-chief barber and questions for China have de...
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As the needs of large-scale industrial production and the rapid development of science and technology, using special equipment synthesis of modern high-speed lines and multifunctional and efficient combination machine tools, in many industries has become guarantee the accuracy of product, reduce the production cost, improve labor productivity, and one of the key measures of enterprise competitiveness.
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