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我厂产品660×2770车床上的长螺丝杠,其规格φ65×4390公厘,螺距为12.7公厘,技术条件按规定为:(1)单个螺距的最大允差0.01公厘;长1000公厘的累積允差0.08公厘。(2)外径最大擺动量0.06公厘/1000 公厘;外径的椭圆度0.11公厘。(3)節圆的椭圆度0.01公厘。(4)齿形半角误差-0°25′。(5)光洁度为▽▽▽_7。由于厂内设备的限制,这样长的丝杠是无法加工,过去一直委托兄弟厂外包加工来解决,因
The long screws on the 660 × 2770 lathe of our factory have the specifications of φ65 × 4390 mm and the pitch of 12.7 mm. The technical conditions are as follows: (1) The maximum allowable tolerance of a single pitch is 0.01 mm; the length is 1000 mm The cumulative allowance 0.08 mm. (2) The maximum swing of the outer diameter of 0.06 mm / 1000 mm; Outer diameter of 0.11 mm. (3) The ovality of pitch circle is 0.01 mm. (4) tooth half-angle error -0 ° 25 ’. (5) Finish is ▽▽▽ _7. Due to the limitations of the plant equipment, such a long screw is unable to process, in the past has been commissioned by the Brother plant outsourcing processing to solve