CNC plane drilling machine for chemical industry hole processing subverted the traditional processing mode, is now chemical flange, heat exchanger, tubesheet and other processing of the main CNC drilling machine. Before using the traditional hole processing method, first fitter scribed positioning, and then fixed the well positioned Tubesheet in the vise. On, with the radial drilling machine drilling, for large diameter even to go through two procedures of drilling, reaming. Compared with the traditional hole processing method, the advantages of using the NC plane drilling machine are as follows: < br style = "list style type: none;" / > (1) the manual marking step is omitted in the NC plane drilling machine. The traditional positioning method of hole processing is mainly that the technical workers mark the designated position according to the requirements of the drawing, and punch the positioning hole with hand electric drill or magnetic drill, which has large error and low efficiency. In order to drill holes on the NC plane drilling machine, it is only necessary to input the required parameters such as the position and number of holes into the computer, or input the correct CAD design drawing, and use the photoelectric edge finder device to find three points on the workpiece at random, which can realize the automatic continuous processing of large aperture of drilling power head. The operation is very convenient, the accuracy is high and stable. (2) the advantages of NC plane drilling machine in machining large hole diameter. The traditional large diameter hole processing needs to go through the following steps: marking, positioning, drilling and reaming. The CNC plane drilling machine for large diameter hole processing features is fully automatic CNC positioning, large diameter hole one-time processing molding, no need for secondary reaming. (3) in terms of machining accuracy, there are many uncertainties in the processing of artificial holes, such as large errors, which are difficult to assemble. If the errors are too large, the workpieces will be scrapped and bring losses to enterprises. While the plane drilling machine processing method, using CNC positioning, precision processing, hole positioning accuracy can reach + 0.08mm, which can meet the processing requirements. (4) in terms of processing efficiency. Artificial hole machining is not only low precision, low efficiency, but also tedious processing procedures. The drilling efficiency can be increased by 5-10 times by using the fully automatic CNC machining mode of gantry mobile CNC plane drilling machine, which can greatly reduce the labor intensity of workers, improve the labor environment, and improve the quality and accuracy of products. (5) in terms of efficiency, traditional hole processing requires one worker to draw lines, one worker to drill holes, one worker to punch and locate, one worker to load and unload, and one worker to drill holes. The CNC plane drilling machine only needs one technician and one loader. Save two labor costs. The traditional processing method takes about 3.0 hours to process a tubesheet, while the CNC plane drilling machine only takes 0.5 hours, which improves the efficiency by about 6 times. So it can be seen that the processing method of NC plane drill can not only save the cost, but also improve the production efficiency and bring economic benefits to the enterprise owners.