CNC Lathe Self-Centering Chuck Clamping Technique This is a method of clamping the workpiece position directly on the CNC lathe using a dial indicator, a scribing disc, or a visual inspection. In addition, there is also a technique of finding the centering clamp by scribing. This clamping technique is to draw the center line, symmetry line and processing line of each surface to be machined on the blank according to the part drawing, and then install the workpiece on the CNC lathe. , and determine the clamping position of the workpiece to be corrected according to the line on the CNC lathe.
This method of clamping workpieces on CNC lathes has low productivity, low precision, and high technical requirements for workers. In single-piece small batch production, it is generally used to process complex and bulky parts, or the blank size tolerance of the processed parts is large and cannot be directly clamped.
The fixture for clamping the workpiece on the CNC lathe is specially designed according to the requirements of the processing technology. Positioning elements on the fixture enable the workpiece to quickly occupy the correct position relative to the machine and tool. The positioning accuracy of the workpiece can be guaranteed without correction, and the fixture productivity is high. The positioning accuracy is high, but special fixtures need to be designed and manufactured, which are widely used in batch and mass production.
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