Roll Grinder (MK84250/H)

Main Applications and Features

MK84250/H CNC roll grinder is mainly designed for grinding new rolls and renovating old rolls. It is capable of grinding the cylindrical surface of work rolls, support rolls, barrels, and roll necks. Tapered surface, various curve surface and chamfer can also be ground, and other large shaft-like and barrel-like parts as well.
The machine is laid out with the workpiece and wheelhead bed separate, having no influence of workpiece weight and motion on grinding accuracy. Machine operation position is at the wheelhead bed. CNC operation table is to the side of wheelhead, where the operation area is spacious and the operation table can be revolved, for the convenience of workpiece alignment and viewing the grinding condition.
Electric cabinet, hydraulic oil tank, coolant tank, and hydraulic oil tank control unit are behind the machine, and they are connected with the functional assemblies of the machine through cable carriers. The workpiece and wheelhead beds are made of cast iron with high strength and low stress. The coolant-return chute is located between both the beds.
The functional assemblies such as workhead, tailstock, steadies and softloaders are laid out on the workpiece bed. On the wheelhead bed are mounted wheelhead, base-plate, carriage driving unit, cambering unit, operation table, electric and hydraulic sets and coolant nozzles etc...
Workhead and tailstock are respectively located at the left and the right side of the workpiece bed. Tailstock can be moved towards the workhead in accordance with the workpiece length by the motor. Tailstock center quill can be advanced and retracted by the motor to facilitate the workpiece loading and positioning.
Wheel is situated at the left side of the wheelhead (close to workhead). The operation table is located to the left side of the wheelhead, and the wheel motor and hydraulic station are to the right side.
The wheelhead carriage uses V-flat hydro-static plastic-coated guide, and wheelhead uses linear guide. Both the guides have high wear-proof capacity, responsibility and accuracy permanence.
SIMENS 840D CNC system and PLC system act as control platform for the machine, controlling each servo motor drive, hydro-electro actions and their interlock.
"SGS grinding star" as a special software for CNC roll grinder is used along with Siemens 840D CNC system, to control each grinding cycle for grinding various roll surface, and to carry out data processing, etc...