Extra long hole with flower key pull groove

The traditional method is to useInserting machine, pulling machine, wire cutting machine toolHowever, for cylinder diameters exceeding 90mm and lengths exceeding1500mThe above-mentioned internal hole spline processing is difficult to carry out on the aforementioned machine tools and does not meet the quality requirements. At present, the processing of ultra long internal spline groove is sent toElectrolytic machine toolThe processing of long inner hole keyways in military enterprises has a delivery time of up to six months or even eight months, and the cost is high, which affects the company's costs and operations. A type specially manufactured by our companyNCK100~2800Single blade type ultra long inner hole groove CNC latheworkable1500~2800mmFlat key grooves and spline grooves in the inner holes of long metal and non-metal cylinders.

The size of the cylinder is:φoutside159mm、φInside 218mm, Long2400mm, spline groove,6Equal distribution of slots. The material is45Steel No

The keyway size is 25x2400mm, groove depth 10mm

Processing accuracy: groove size tolerance0.02mmRequirement, roughnessRa2.0Fully qualified through plug gauge inspection.

Processing time: Excluding the time for designing and manufacturing fixtures and jigs, the machining time on the machine is6x8One working hour.

Effect diagram of internal spline processing plug gauge diagram plug gauge inspection passed diagram