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Figure 1.43 Approximation error
CNC machining error â–³ number is caused by programming error â–³, machine error â–³ machine, positioning error â–³ set, knife error â–³ knife and other errors formed. That is: â–³ number plus = f (â–³ â–³ + + machine + â–³ set + â–³ knife)among them:
(1) The programming error △ consists of approximation error δ and rounding error. The approximation error δ is generated during the process of approximating a non-circular curve with a straight segment or an arc segment, as shown in Figure 1.43. The rounding error is an error generated by rounding off the coordinate values ​​to integer pulse equivalent values ​​during data processing. Pulse equivalent refers to the displacement of the corresponding axis for each unit pulse. Ordinary precision CNC machine tools, the general pulse equivalent value is 0.01mm; more accurate CNC machine tool pulse equivalent value is 0.005mm or 0.001mm.
(2) The machine tool error â–³ machine is caused by the numerical control system error, feed system error and other reasons.
(3) Positioning error â–³ is determined when the workpiece is positioned on the fixture and the fixture is positioned on the machine.
(4) Tool setting error The tool is generated when the relative position between the tool and the workpiece is determined.
Our firm introduced whole set of good-sized numerical control hydraulic folding equipment(1280/16000) as well as equipped with a series of good-sized professional equipments of armor plate-flatted machine, lengthways cut machine, numerical control cut machine, auto-closed up machine, auto-arc-weld machine, hydraulic redressing straight machine, etc. The firm produces all sorts of conical, pyramidal, cylindrical steel poles with production range of dia 50mm-2250mm, thickness 1mm-25mm, once taking shape 16000mm long, and large-scale steel components. The firm also is equipped with a multicolor-spayed pipelining. At the meantime, for better service to the clients, our firm founded a branch com. The Yixing Jinlei Lighting Installation Com, which offers clients a succession of service from design to manufacture and fixing.
We have supplied 2400ton 132kV and 220kV transmission line steel pole to WAPDA. Pakistan on 2008 and have supplied 1200ton 138kV transmission line steel pole to Davao light, Philippines on 2009.
Street Lighting Pole, Solar Power, Solar Lighting Pole
Jiangsu Xinjinlei Steel Industry Co., Ltd. , https://www.steelpolejl.com