introduction
The perimeter and diameter of the boiler head can be measured by laser measurement. The information required for the head can be displayed in detail. The laser measuring instrument is easy to use and accurate. It is the diameter of the head and the quality of the perimeter. Brought convenience.
1, working process
During operation, the system scans the angle data of the rotary encoder, and at the same time measures the current measurement data to the probe by sending commands. After receiving the measurement data fed back by the probe, the system stores the measurement data corresponding to the angle. The angle data collected by the system exceeds 180 degrees. At °, the system will add the two radius dimensions (ie two radius dimensions on a diametrical line) with an angle difference of 180° to the diameter dimension.
After the measurement is completed for one week, the system will adjust the probe downwards (the distance can be set in the system according to the information of the detected workpiece), and continue measuring after the movement is stopped. The distance from the probe to the head can be calculated according to the same angle. The angle of the edge of the head.
2, software function introduction
2.1, Interface display content: Real-time display of radius size, real-time display of radius size and diameter size after 180° rotation, display of average diameter size after calculation and perimeter length calculated by integral, multi-position measurement can calculate edge of tube sheet Tilting angle. There are two levels of interface. The first level is the employee operation interface. No password is required. Under this interface, the normal detection of workpieces and uploading of data can be completed. The uploaded data cannot be modified. The second level interface is management. The user interface requires password entry to complete the following functions: System time setting, including year, month, day, hour, minute, no adjustment interface can be set outside this interface; setting of rotation angle compensation value; height displacement accuracy Compensation value setting; Setting of forward and backward movement distance accuracy compensation value; System table format, content modification and calculation formula modification;
2.2, Parameter settings: Product specifications can be set, positive and negative tolerances, serial ports, motor adjustments, refresh frequency parameters, etc.
2.3, with out-of-pocket alarm function and data storage, can be exported in the form of a table.
2.4, Workpiece specification self-adaptive function: When switching the tube plate diameter specification, the horizontal distance from the probe to the tube plate and the height of the side head from the tube plate face are automatically adjusted according to the system workpiece information.
2.5, Height Measurement Position Adjustment Function: Automatically adjust the height position of the probe measurement
2.6, Detection report function: A test report can be generated for each measurement. The test report is stored in Excel table format and can be uploaded via LAN.
2.7, Collision protection with detection head, Can manually set the collision protection distance, When the detection head reaches the set distance from the obstacle, the detection arm will stop, and an alarm will pop up on the man-machine interface.
2.8, automatic elimination of invalid data, automatic elimination of interference values in data application calculations, and ultimately true and accurate detection results.
2.9, In order to improve the detection efficiency and detection accuracy, no absolute zero is set on the vertical stand. The system determines the rotation of the workpiece according to the pulse number of the encoder that is synchronized with the table rotating motor according to the ratio of the number of pulses defined in advance and the rotation angle. Angle, and record the value of the corresponding tube plate diameter under the required angle, but the circumvention of the angle of the talons must be taken into consideration when dividing the detection angles.
3, test data
The above figure is the automatic detection record, which can accurately reflect the detected information and accurately display the head data.
Conclusion
The laser measuring instrument can accurately detect the diameter and circumference of the sealing head, and can accurately display the radius, angle, inclination, average diameter, integral circumference, total height, etc. This brings great convenience to the detection of the head. The test report is stored in Excel table format and can be uploaded via LAN. The use of laser measuring instrument brings great convenience to the data detection of the head.
This article consists of Baoding Lanpeng Measurement & Control Technology Co., Ltd. write
