Internal thread grinding machine SK7620A

ball screwCNC3-axis

The machine is mainly used for grinding nuts for automobile steering screws and ball-screws in massive production 【NC system configuration】 1、FANUC 0iMC or SIEMENS 828D, controlling 3 NC axes 2、Programmable axes are designated as followers Axis X Cross-feed of wheelhead full close-looped Axis Z Table longitudinal traverse full close-looped Axis C Rotation of work spindle full close-looped 【Working accuracy】 Thread accuracy achievable Limit lead deviation 0.005mm Accumulative error at a length of50mm 0.009mm 【Technical characteristics】 1、Wheel dressing is conducted by a formed diamond roller 2、a newly-developed workhead structure doubles work spindle speed, thus increasing greatly machine productivity 3、Special-built soft program makes the machine have automatic grinding cycle, wheel dressing and self-compensation for wheel dressing amount 4、Wheel spindle employs a high speed E-spindle 5、Users can choose grinding modes between one-way or two-way auto-grinding cycle 6、Online device for pre-cut thread alignment can be an optional configuration to users 7、Efficient centrifugal oil mist exhauster is available