Wide application of CNC horizontal lathes，Application of crankshaft belt polishing machine，Crankshaft rounded corner rolling machine

   Wide application of CNC horizontal lathes
DANOBAT NA750 crankshaft thrust face finish turning machine is equipped with an automatic inspection device. After the part is clamped, the measuring head automatically detects the width of the thrust face, determines its centerline, takes it as the machining reference and automatically compensates for it according to the machining of the previous crankshaft, thus realizing the finish turning of the two sides of the thrust face with the centerline as the machining reference and with equal allowances, and then the width of the thrust face is automatically detected after the completion of the turning. After turning, the width of the thrust face is automatically detected, and the processing of the small end and groove is completed at the same time. After the turning is completed, the turning tool is returned and the roller head is extended, and the two end surfaces of the thrust face are rolled at the same time. When rolling, the rolling surface has good lubrication.NA500 type fine turning flange end face and groove machine tool is equipped with automatic detection device, after the parts are clamped, the probe automatically detects the distance from the thrust surface to the flange end face.The positioning accuracy of X-axis is 0.022mm, the repeatability of the positioning accuracy is 0.006mm, the positioning accuracy of Z-axis is 0.008mm, the repeatability of the positioning accuracy is 0.004mm.
   Application of crankshaft belt polishing machine
GRINDMASTER crankshaft belt polishing machine is used to polish the oil seal neck, main shaft neck and connecting rod neck of the crankshaft. When polishing, the workpiece is firstly sprayed and cleaned, and then polished by using abrasive belts to wrap the parts. There are two rotating directions when polishing, and the final polishing direction is the same as the normal running direction of the engine (from the flywheel side); after polishing, the work is carried out for drying and degreasing, and the equipment needs to be equipped with its own polishing liquid treatment system.
   Crankshaft rounded corner rolling machine
Regarding HEGENSCHEIDT MFD7895 crankshaft rolling machine, the control system adopts Siemens PLC S7-300, the machine is installed with 9 rolling units, which are used to roll and straighten the crankshaft, the maximum rolling pressure is 30kN; pulse rolling of the connecting rod journals reduces the deformation of the workpiece; through the integration of pressure sensors and position sensors and rolling depth sensors in rolling units, the detection and monitoring of rolling pressure is realized; after rolling, the main journal runout is automatically detected and straightened by rolling; equipped with broken knife detection device; electronic measuring probe detects all main journals of the crankshaft radially. The pressure and position sensors integrated in the rolling unit and the rolling depth sensor enable the detection and monitoring of the rolling pressure; the main journal runout is automatically detected after rolling and straightened by rolling; a broken tool detection device is equipped; the radial runout of all main journals of the crankshaft is measured by electronic measuring probes; and the highest point of the connecting rod necks is detected by a laser head to identify the variety of the part.