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Method and controller for controlling position, pressure measurement and safe control of sliding block of forging machine tool

A sliding block position, forging machine tool technology, applied in pressure measurement and safety control, method and controller, controller, sliding block position field of forging machine tools, can solve the problem of low fine-tuning accuracy, inability to strictly time correspondence, loss of machine tool control, etc. problems, to achieve the effect of streamlining the structure of the monitoring system, realizing product quality control, and expanding the scope of use

Active Publication Date: 2013-01-16
NANJING ESTUN AUTOMATION CO LTD
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] like figure 1 As shown, the pressure monitoring function of the traditional CNC machine tool is to connect the A / D module through the pressure sensor and the tonnage meter PTM (PressTonnage Monitor) to connect to the PLC, and then through the external host and touch screen, because the position measurement and the pressure measurement are not in the For the same unit, the corresponding relationship between the position of the slider and the pressure cannot be strictly time-corresponded, and the pressure is different at different positions. Therefore, this method can realize the function of monitoring the maximum pressure in a cam interval, and cannot realize the function of monitoring any position of the slider. pressure monitoring
Moreover, the high cost of adding A / D and touch screen system modules to PLC is not conducive to popularization
[0004] The traditional speed control of the main motor generally controls the main motor by manually adjusting the potentiometer on the panel. This speed regulation method has large errors, low fine-tuning accuracy, and inconvenient speed regulation.
[0005] The existing controller controls the clutch part with a single output, which does not consider the failure of the safety function caused by a single point of failure. If the cam output circuit fails during the operation of the machine tool, it may cause the machine tool to lose control and endanger personal safety.

Method used

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  • Method and controller for controlling position, pressure measurement and safe control of sliding block of forging machine tool
  • Method and controller for controlling position, pressure measurement and safe control of sliding block of forging machine tool
  • Method and controller for controlling position, pressure measurement and safe control of sliding block of forging machine tool

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Embodiment Construction

[0038]The control method of the present invention integrates the position detection of the slider and the pressure monitoring of the slider into one controller, collects the position of the slider and the pressure of the slider at the same time, and corresponds the position and pressure according to time to obtain a position-pressure curve. First By collecting the position and pressure data during normal processing many times, the obtained position-pressure curve is set as the standard curve, and the position and pressure are collected in real time during the subsequent processing, and compared with the standard curve, if it is within the set error range Within, it means that the produced workpiece is qualified, if it exceeds the error range, it means that the produced product is a waste product;

[0039] The method to avoid the failure of single output point is: adopt double-loop output, and adopt serial connection between the two loops, as shown in Figure 2(a); if one loop fa...

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Abstract

The invention discloses a method and a controller for controlling the position, the pressure measurement and the safe control of a sliding block of a forging machine tool. By the method, the position detection and the pressure monitoring of the sliding block are integrated into a whole; meanwhile, the position and the pressure of the sliding block can be acquired; the position corresponds to the pressure to obtain a position-pressure curve according to the time; the position-pressure curve obtained by multiply acquiring position and pressure data during normal processing is set to be a standard curve; the quality of products can be controlled and production personnel are prompted to find the reasons of faults by using the curve; the controller carries out double-circuit output on control output; double circuits are connected in series; and the controller transmits a control signal to a motor of a numerical control machine tool and automatically adjusts the motor speed according to preset value. The invention integrates the position monitoring of the sliding block and the pressure monitor of the machine tool into a controller and realizes multifunctional control by combining automatic speed regulation, alarm and the like; meanwhile, the invention realizes the quality control of products and the safe and accurate control of the machine tool.

Description

technical field [0001] The invention belongs to the technical field of numerical control and relates to a controller, in particular to a method for measuring the position and pressure of a slide block of a forging machine tool and a safety control method and a controller. Background technique [0002] The controller is the core control component of the CNC system, and its performance directly affects the usability, safety, reliability of the whole machine, as well as the operating rate and maintenance amount of the equipment. At the same time, more and more emphasis is placed on safety, reliability and efficiency in the control of machine tools, because it is not only related to production efficiency, but also related to the safety of life and property. Therefore, the security of the control system has been widely valued, and the CNC system with integrated security functions will become the main trend in future applications. [0003] Such as figure 1 As shown, the pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/406G05B19/4063
Inventor 宋华山赵建峰韦勇
Owner NANJING ESTUN AUTOMATION CO LTD
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