1. The main mechanical structure of a machine tool is composed of frame ,column , slider ,worktable ,main cylinder, back carrier and other parts. Through finite element analysis and optimization design by three-dimensional software, the structural strength and rigidity of each main component can be fully ensured
2. Internal stress of welded parts can be eliminated by tempering and vibration aging
3.Self-lubricating material is used on machine tool guide way so that there is no need for frequent lubrication and maintenance
4.The transmission structure of machine tool adopts upper dynamic bending design to ensure low noise and stable working conditions. Bottom dead center can suspend and hold pressure to ensure accuracy of work pieces.
5.The movement and location of the left and right cylinder are controlled by axis Y1 and Y2,closed loop control system consists of electro-hydraulic servo valve, grating ruler cnc system . Each axis can work in programming mode, and the slider has high positioning accuracy when pressing to workpiece. The grating ruler is connected with the worktable to eliminate the effect from column deformation on the slider position .
6. The compensation of worktable deflection is controlled by the V-axis of NC system. Automatic hydraulic deflection compensation system consists of a set of hydraulic cylinders which located under the worktable. The CNC system can control the relative displacement of cylinder according to the load value at work, forming a cluster of ideal compensation curve in addition ,a wedge-style compensation mechanism is built on the Slider, so the wear loss caused by long-time working of the upper and lower mold can be compensated
7. The back carrier is controlled by x-axis of NC system, driven by servo motor and ball screw, and transferred by linear guide way.