Outside the spherical bearing raceway of PLC application of superfinishing machine

PLC controller outside the spherical bearing raceway, the application of superfinishing machine now huang lotus fu-ping wang xiang-dong feng welcome to e hall exhibition hall 3 PLC PLC programmable controller, PLC programming cable. 。 。 Pick to: this paper proposes the use of PLC control outside the spherical bearing raceway superfinishing machine for realizing the function of automatic grinding ideas and methods, gives the control system scheme, software and hardware structure design idea, for industrial implementation of machine tool transformation has the high application and reference value. 1 introduction past deep groove inside and outside the sphere of fine grinding machine is controlled by relay, the control part of the huge volume, response time is long, and the reliability is not high, often appear fault, the function of the single grinding machine grinding workpiece, some grinding machine can only into the coarse grinding, grinding machine only fine grinding. To complete a finished product processing, first in the coarse grinding grinding machine for coarse grinding, and then send it to fine whet machine for fine grinding. Based on this kind of circumstance, we use the programmable controller to the control circuit for technological transformation, the two function of grinding machine on the implementation on a grinding machine, namely, coarse grinding, fine grinding finish at a time. Such not only can reduce the volume control part and enhance the system reliability, and improve the utilization rate of the system and reduce the cost and good results have been achieved in practical application, implement relevant to industry transformation of machine tool has the high application and reference value. 2 control system design according to the requirements of workpiece machining process control systems set up manual and automatic timing, coarse grinding, fine grinding, etc. 1. Manual/automatic conversion, when switch to manual mode, automatic doesn't work, the system according to different manual control button on the operation panel to complete each working procedure; Similar switch back to automatic state, press the start signal, PLC controller, according to the preliminary design meet the requirements of the process program is running. 2. Coarse grinding stages: oilstone pressure, spindle speed. Fine grinding stages: sharpening stone less pressure, spindle at high speed. 3. Choose dial 8421 BCD code data of coarse grinding fine grinding time control, processing time can choose according to the technological requirements of different grinding time, so no need to design a digital input and display circuit, effectively save the PLC input point, simplify the hardware circuit. 3 control system hardware design of control system USES the Japanese mitsubishi company production of F1 60 Mr Programmable controller, the hardware block diagram as shown in figure 1 by the hardware block diagram, the system can accomplish the following functions: ( 1) Low spindle high-speed automatic conversion. ( 2) Workpiece frame automatically. ( 3) High oil stone low-frequency oscillation automatic conversion. ( 4) Coarse grinding, fine grinding arbitrary choice. ( 5) Workpiece demagnetization filling. 4 software design software of the control system structure is designed according to control requirements, mainly divided into four modules: the module manually, coarse grinding single module, fine grinding single module, cycle start ( After the first coarse grinding fine grinding) Module, as a result of the course of the entire software structure diagram, here only gives the main program flow chart shown in figure 2 and cycle start flow chart shown in figure 3 ( Manual, coarse grinding flow chart of single cycle and fine grinding cycle from) 。 5 conclusion based on the spherical bearing outer race of superfinishing machine PLC controller control technology renovation, makes the much smaller control circuit and eliminated by the intermediate relay and time relay contact point contact bad cause system failure. Improve the production efficiency, reduces the labor intensity of workers, has obtained the remarkable economic benefits.
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