High processing accuracy
CNC machine tools are machined in digital form. At present, the pulse equivalent of CNC machine tools generally reaches 0.001, and the backlash of the feed drive chain and the screw pitch error can be compensated by the numerical control device. Therefore, the CNC machine tool can achieve high machining accuracy. For medium and small CNC machine tools, the positioning accuracy is generally 0.03, and the repeat positioning accuracy is 0.01.
Strong adaptability to processed objects
When changing machining parts on CNC machine tools, it is only necessary to re-program the program, and the new program Guo can realize the processing of new parts, which provides great for single-piece, small-volume production and trial production of new products. convenient. For precision and complex parts that are difficult or impossible to machine with ordinary manual machines, CNC machines can also perform automatic machining.
High degree of automation, low labor intensity
The machining of the parts is done automatically according to the pre-programmed procedure. The operator does not need complicated repetitive manual operations except for placing the punching belt or operating the keyboard, loading and unloading the workpiece, intermediate inspection of key processes and observing the machine operation. . CNC machine tools generally have better safety protection, automatic chip removal, automatic cooling and automatic lubrication devices, and the operator's working conditions are greatly improved.
high productivity
The range of spindle speed and feed rate of CNC machine tools is large, so the most advantageous cutting amount can be selected for each process of CNC machine tools. CNC machine tools have a good structural rigidity, allowing for powerful cutting with large cutting volumes, improved cutting efficiency and reduced maneuver time. Because the moving motion of the moving parts of the CNC machine tool is fast, the clamping time and auxiliary time of the workpiece are less than that of the general machine tool.
Easy to change machined parts
When the machine is replaced by the machine, it is almost unnecessary to re-adjust the machine. This saves time for component installation and adjustment. The machining quality of CNC machine tools is stable. Generally, only the first part inspection and the sampling of key dimensions between processes are performed, thus saving the downtime inspection time. When machining is performed on a machining center, one machine tool realizes continuous processing of multiple processes, and the improvement of production efficiency is more obvious.
Good economic benefit
1 Using CNC machine tool processing, it can save the line working time, reduce the adjustment, processing and inspection time, and save the direct production cost; 2 processing parts generally do not need to make special fixtures, saving the cost of process equipment. 3 CNC machining accuracy is stable, reducing the scrap rate, and further reducing the production cost. 4 can achieve a multi-purpose machine, saving plant area and saving investment in construction.
Editor in charge: Zhao Hongli
Elevator fixtures
Elevator fixtures are the set of buttons, floor indicators, hall lanterns and other things for elevators.
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