When selecting machine, it is necessary to consider a main processing direction, take into account the processing requirements of other directions, make overall arrangements, comprehensively consider the technical requirements and capital investment, and reasonably select a certain type of machine tool to meet the most technological processing needs, and the smallest Expenses, the simplest and most convenient operation and maintenance are the principle.
(1) Determine the number of cutter shafts according to the required cross-sectional shape of the workpiece to be processed. The number of four-sided planer axes determines the processing capacity of the machine tool, and mainly determines the cross-sectional shape of the workpiece that the machine tool can process. Under normal circumstances, workpieces with regular cross-sectional shapes can be processed by four-axis four-sided planing to meet the requirements. One surface is the profile surface, and the other three surfaces are flat workpieces, which can be processed by a five-axis four-sided planer.
The processing of workpieces with complex cross-sectional shapes, such as birch grooves, birch heads and two planes, or line profiles for decoration, requires seven-axis or eight-axis four-sided planing.
(2) Select the processing capacity of the machine tool according to the possible processing batch. The processing capacity of the machine tool mainly depends on the feed speed of the machine tool, the speed of the tool shaft and the cutting power. Generally, when the feed speed is high, the cutting amount, that is, the width and thickness of the cutting should be small, and the rotation speed of the cutter shaft should be increased.
When the feed speed is low, the cutting amount can be appropriately increased, and the rotation speed of the cutter shaft can be reduced accordingly to meet the requirements of the motor power. But the speed should not be too low, it will affect the quality of the processed surface.
Within the allowable range of mechanical strength and rigidity, the higher the speed of the machine tool shaft, the better the quality of the machined surface.
(3) Determine the mutual position and feeding method between the machine tool axes according to the size specifications and accuracy requirements of the workpiece to be processed. The maximum width of the workpiece that can be processed by the four-sided planer is the main parameter of the machine tool. The section size, width and height (thickness) of the workpiece determine the limit range of adjustment between the upper and lower horizontal tool axes and the left and right vertical tool axes of the four-sided planer. , And the adjustment and positioning accuracy of the tool axis. In general, each tool axis of the machine tool should not be at the limit position of its adjustable range, and a certain margin should be left, otherwise it will affect the machining accuracy. Different feeding methods will affect the positioning and compaction of the parts during the machining of the machine tool, thereby affecting the machining accuracy of the workpiece. Normally, for thin and long workpieces with poor rigidity, the pressing force of the pressing rollers of the feeding mechanism should be small, and the pressing rollers should be correspondingly larger. For workpieces with good rigidity such as short square materials, the pressure of the pressing rollers of the feeding mechanism can be increased, and the pressing rollers can be reduced accordingly.
(4) Focus on one product, take into account the development of other products, and choose as much as possible the machine tool whose process range can be expanded to meet the needs of the future development of the enterprise.
Double Side Planer Machine