A CNC coiler machine tool can judge its machining accuracy from the positioning accuracy it can achieve. Therefore, the detection and compensation of the positioning precision of the CNC coiler machine tool is a necessary way to ensure the processing quality. The positioning precision of the CNC coiler machine tool refers to the position accuracy of the measured moving parts of the coiler machine tool under the control of the CNC system. It is an important difference between the CNC coiler machine tool and the ordinary coiler machine tool. Accuracy, together with the geometric precision of the coiler machine tool, has an important influence on the accuracy of the machine precision of the coiler machine, and especially has a decisive influence on the pitch error in the hole machining.
According to the precision of each axis of the CNC coiler machine tool, the automatic compensation of the pitch error and the backlash compensation function are used to reasonably select the distribution points for each axis, so that the CNC coiler machine tool achieves the best precision state and greatly improves the Detecting the efficiency of positioning precision of coiler machine.
Positioning accuracy is an important indicator of CNC coiler machine tools. In spite of the fact that the user can choose the best coiler machine with high accuracy and small error when the user purchases, the longer the equipment is put into use, the more equipment wears out and the positioning error of the coiler machine becomes larger and larger. This has a fatal effect on the processing and production of parts. The above method is used to accurately measure and compensate the backward deviation and positioning accuracy of each coordinate axis of the coiler machine tool, which can well reduce or eliminate the adverse influence of the reverse deviation on the precision of the coiler machine tool, and improve the coiling machine machine tool. The positioning accuracy ensures that the coiler machines are in the best possible state of precision, thus ensuring the quality of the parts.
Determination of Positioning Accuracy of Plate Rolling Machines <br> Currently, dual-frequency laser interferometers are used for machine tool detection and processing analysis. Using the principle of laser interferometry, the laser real-time wavelength is used as a measurement reference, so the test accuracy is improved and the applicable range is enhanced. The detection method is as follows:
· Install dual-frequency laser interferometer;
Install optical measuring devices in the direction of the machine coordinate axis that needs to be measured;
Adjust the laser head so that the measuring axis is collinear or parallel to the axis of movement of the machine tool, that is, the light path is pre-aligned and aligned;
· Input measurement parameters after laser warm-up;
·Move the machine to measure according to the specified measurement program;
Data processing and result output.
Bending Machine Positioning Accuracy Compensation <br> If the positioning error of the CNC Bending Machine is beyond the tolerance range, the Bending Machine Machine must be compensated for the error. The common method is to calculate the pitch error compensation table and manually input the CNC machine system of the coiling machine to eliminate the positioning error. Since the three or four axis compensation points of the CNC machine may have hundreds or thousands of points, the manual compensation needs to be costly. More time and error prone.
The computer is now connected with the CNC machine controller of the rolling machine through the RS232 interface. The automatic calibration software written in VB controls the laser interferometer to work synchronously with the CNC machine tool to realize the automatic detection of the positioning precision of the rolling machine CNC machine tool and the automatic pitch error. Compensation, its compensation method is as follows:
Back up the existing compensation parameters in the CNC control system;
The CNC machine program of the coiler machine for point-to-point positioning accuracy measurement is generated by the computer and transmitted to the CNC system;
Automatically measure the positioning error of each point;
A set of new compensation parameters are generated according to the specified compensation point and transmitted to the CNC system. The automatic pitch compensation is completed;
Repeat c. Perform accuracy verification.
According to the precision of each axis of the CNC coiler machine tool, the automatic compensation of the pitch error and the backlash compensation function are used to reasonably select the distribution points for each axis, so that the CNC coiler machine tool achieves the best precision state and greatly improves the Detecting the efficiency of positioning precision of coiler machine.
Positioning accuracy is an important indicator of CNC coiler machine tools. In spite of the fact that the user can choose the best coiler machine with high accuracy and small error when the user purchases, the longer the equipment is put into use, the more equipment wears out and the positioning error of the coiler machine becomes larger and larger. This has a fatal effect on the processing and production of parts. The above method is used to accurately measure and compensate the backward deviation and positioning accuracy of each coordinate axis of the coiler machine tool, which can well reduce or eliminate the adverse influence of the reverse deviation on the precision of the coiler machine tool, and improve the coiling machine machine tool. The positioning accuracy ensures that the coiler machines are in the best possible state of precision, thus ensuring the quality of the parts.
Determination of Positioning Accuracy of Plate Rolling Machines <br> Currently, dual-frequency laser interferometers are used for machine tool detection and processing analysis. Using the principle of laser interferometry, the laser real-time wavelength is used as a measurement reference, so the test accuracy is improved and the applicable range is enhanced. The detection method is as follows:
· Install dual-frequency laser interferometer;
Install optical measuring devices in the direction of the machine coordinate axis that needs to be measured;
Adjust the laser head so that the measuring axis is collinear or parallel to the axis of movement of the machine tool, that is, the light path is pre-aligned and aligned;
· Input measurement parameters after laser warm-up;
·Move the machine to measure according to the specified measurement program;
Data processing and result output.
Bending Machine Positioning Accuracy Compensation <br> If the positioning error of the CNC Bending Machine is beyond the tolerance range, the Bending Machine Machine must be compensated for the error. The common method is to calculate the pitch error compensation table and manually input the CNC machine system of the coiling machine to eliminate the positioning error. Since the three or four axis compensation points of the CNC machine may have hundreds or thousands of points, the manual compensation needs to be costly. More time and error prone.
The computer is now connected with the CNC machine controller of the rolling machine through the RS232 interface. The automatic calibration software written in VB controls the laser interferometer to work synchronously with the CNC machine tool to realize the automatic detection of the positioning precision of the rolling machine CNC machine tool and the automatic pitch error. Compensation, its compensation method is as follows:
Back up the existing compensation parameters in the CNC control system;
The CNC machine program of the coiler machine for point-to-point positioning accuracy measurement is generated by the computer and transmitted to the CNC system;
Automatically measure the positioning error of each point;
A set of new compensation parameters are generated according to the specified compensation point and transmitted to the CNC system. The automatic pitch compensation is completed;
Repeat c. Perform accuracy verification.
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