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Automatic Wood Lathe Reduce The Length And Complexity Of Off-line Testing
Jun 16, 2017

Modern Automatic Wood Lathe are equipped with testing and calibration technology, but also to provide this technology, so that the workshop can ensure the accuracy of woodworking machine and normal operation. More and more factories and large workshops have their own laser interferometers and electronic equipment, and small factories can use a variety of channels, the use of commercial way to a competitive price through the lease to obtain equipment and testing services。

In fact, it is now possible to provide telescopic club detectors for any workshop, for quick detection of Automatic Wood Lathe, as long as 15 minutes to complete the inspection task to maintain the machining accuracy of Automatic Wood Lathe. The geometric accuracy of the woodworking machine, the roundness and the stickiness / slip error, the mismatch of the servo gain, the vibration, the backlash, the repeatability and the mismatch of the ruler can be accurately evaluated by the club detection. Some of the club software can provide a specific error diagnosis according to ISO230-4 and ASMEB5.54 and B5.57 standards, and then provide a common English list, according to the overall impact of the accuracy of woodworking machine, the list of the source of various errors The This allows the woodworking machine maintenance personnel to deal directly with the problem area

The stage of the club test to keep up with the development trend of woodworking machine tools. Preventive maintenance facilitates prior planning of Automatic Wood Lathe before deviating from process capability. Industry generally tends to correct Automatic Wood Lathe as needed, rather than in time. There is no reason to take a good machine for production to carry out the correction for maintenance. When it is found that there is something unusual, or to let the detection of the club and the production of parts to determine. The test period can continue to produce.

Today, the standard woodworking machine can achieve the accuracy and repeatability has been close to the past only CMM coordinate measuring machine to achieve the level. This feature allows the woodworking machine itself to automatically detect the workpiece with a probe during critical processing stages. Once the woodworking machine has installed the measuring instrument, the measuring probe becomes the operator's CNC meter. The test program can be programmed as part of the machining process and automatically run at various points, detect the size and location, and provide the necessary compensation. This eliminates the need for operators to use the dial gauge and plug gauge for measurement, and eliminate the human factors caused by the control system of fixtures, parts and woodworking tool bias caused by the error. On-board inspection has become a part of the process, which is an improved process tool, in the shortest production time, the first time to create qualified parts.

Can be used to automatically determine the location of the parts, and then establish a working coordinate system, machine detection can reduce the set time, improve the efficiency of the spindle, reduce the cost of fixtures and eliminate non-production processing time. In the complex parts processing, the original need 45min time debugging fixture, the application of the test device is only 45s and all by the CNC automatic operation to complete. At the start of the casting or forging, the detection device determines the shape of the workpiece, avoids wasting time due to empty cutting, and helps determine the optimum cut angle for woodworking. The control in the process is to use the detection device to monitor the characteristics, dimensions and location of the woodworking machine during the cutting process, while verifying the precise dimensional relationship between the various characteristics of each process to avoid problems. The probe can be programmed and the actual machining results at each stage are detected by program, and then the woodworking tool is automatically compensated, especially after roughing or semi-finishing.

The reference test is to compare the part characteristics with a size pattern or a reference surface of a known position and size, which enables the CNC to determine the positioning gap and then generate an offset to compensate for this gap. Prior to critical processing, the CNC will be able to check its own position for the known dimensions of the template by testing the mimetic template and then program the offset. If the size plate is mounted on a woodworking machine and exposed to the same environmental conditions, the reference test can be used to monitor and compensate for the coefficient of thermal expansion. The result is a closed-loop process that will not be affected by the operator.

Each woodworking machine has many small errors inherent in its movement and in its structure, so there is always a slight gap between the programming position of the CNC and the true position of the tool tip, After the laser compensation to adjust to quite consistent after. Programmable man-made pattern testing is a good way to further compensate for the rest of the woodworking machine. It provides feedback on process control, making positioning accuracy close to the specification of woodworking machine repeatability. This closed-circuit control allows the machining center to achieve the machining accuracy of boring and milling machines and other precision Automatic Wood Lathe.

Many probe detection operations are done by using the memory-resident macro instruction program. The updating of the working coordinates, the change of the geometric shape of the woodworking tool, and the measurement of the parts, etc., are automatically determined by the CNC after the successful completion of the probe detection period. This eliminates the serious errors caused by incorrect message links or erroneous calculations. For the inspection of parts after machining, the length and complexity of the off-line test can be reduced by probe detection, and in some cases it can even be eliminated. It is very difficult and expensive to move because of the large and expensive workpieces, so the machine inspection is particularly advantageous for large and expensive workpieces.

Here you can also use two methods to complete the reference test, that is, the use of woodworking machine correlation detection method, the measured data on the machine with the previous CMM measuring machine data comparison; or imitation model detection method, the machine data and known Size of the traceability of the imitation model for comparison. In doing this comparison, the CNC can determine whether the woodworking machine has actually reached the specified machining tolerances. Based on these results, it is advisable to take the right approach to the workpieces that remain on the woodworking machine.