Importance of Repeat Positioning Accuracy for CNC Automatic Drilling Machines

　　In the operation and processing of CNC automatic drilling machine, repeat positioning accuracy plays a crucial role, which directly affects the processing quality, production efficiency, cost control and the overall performance of the equipment.

　　From the point of view of processing quality, repeat positioning accuracy is the key to ensure the consistency of parts. When the CNC automatic drilling machine for a batch of the same parts for drilling processing, if the repeat positioning accuracy is high, then the positional deviation of the corresponding holes in each part will be very small, and can strictly comply with the requirements of the design drawings. This is particularly important for those parts with assembly requirements, such as in mechanical assembly, multiple parts of the holes need to be accurately aligned in order to achieve a good fit, if the positional deviation of the holes is too large, it will lead to difficulties in assembly, or even can not be assembled, which seriously affects the quality and performance of the product. On the contrary, if the repetitive positioning accuracy is low, the position of the holes on the parts will have large fluctuations, which will not only reduce the product qualification rate, but also may lead to the subsequent process can not be carried out normally.

　　In terms of production efficiency, high repetitive positioning accuracy can reduce unnecessary adjustment and inspection time. When the repetitive positioning accuracy of the equipment is guaranteed, the operator only needs to carry out an accurate tool setting and parameter setting before mass production, and the subsequent machining process can be carried out stably without frequent downtime for adjustment. If the repeatability of positioning accuracy is poor, every few parts may be processed because the hole position deviation exceeds the standard and need to stop the machine to readjust, which will greatly reduce productivity and increase the production cycle. In addition, high repetitive positioning accuracy can also reduce scrap and rework, to avoid the waste of time and materials caused by unqualified parts, and further improve production efficiency.

　　Cost control is also closely related to repeat positioning accuracy. On the one hand, high repetitive positioning accuracy can improve product qualification rate, reduce scrap and rework material losses and labor costs. On the other hand, for some high-precision requirements of the parts, if the CNC automatic drilling machine is not enough repetitive positioning accuracy, you may need to use a higher level of equipment or additional machining processes to make up for it, which will undoubtedly increase the investment in equipment and processing costs. Moreover, product quality problems caused by low repetitive positioning accuracy may affect the reputation of the enterprise, which in turn affects the market share and causes indirect economic losses.

　　At the same time, repeat positioning accuracy is also one of the important indicators to measure the performance of CNC automatic drilling machine. It reflects the quality and stability of the equipment’s mechanical structure, control system, servo drive and many other aspects. A CNC automatic drilling machine with high repetitive positioning accuracy has higher manufacturing precision of its mechanical parts, smaller clearance of the transmission system, and more rapid and accurate response of the control system. This not only meets the demand for high-precision processing, but also improves the service life and reliability of the equipment and reduces the maintenance cost of the equipment.

　　In summary, the repetitive positioning accuracy for CNC automatic drilling machine is a key factor to ensure the processing quality, improve production efficiency, reduce production costs, improve equipment performance, and has an importance that can not be ignored in industrial production.