Description
SMEKD84 models CNC roll grinder for hot rolling production line is characterized by high efficiency, high precision, powerful function, high automation, safe and reliable operation, and timely remote data transmission. It adopts a large number of advanced SIEMENS 840Dsl control technology and mechanical transmission technology, and its comprehensive performance reaches the world’s advanced level. It is capable of meeting the needs of hot rolling lines in the iron and steel industry for the grinding of work rolls, back up rolls, pinch rolls,etc. with or without chocks. The comprehensive use of advanced numerical control technology and software has simplified the mechanical structure of the grinding machine and reduced the number of mechanical transmission links, thus improving reliability and flexibility while significantly reducing maintenance.
The grinding machine adopts the SIEMENS SINUMERIK 840Dsl distributed computer numerical control system, equipped with self-developed professional automaton control software for roller grinding machines and a user-friendly graphical operation interface for roll grinding machines. It has unique dynamic simulation functions for the grinding and measurement processes of roll grinding machines. Each CNC axis of the grinding machine is equipped with SIEMENS fully digital controlled AC servo motors, and the grinding wheel and headstock are equipped with high-performance AC spindle motors imported from SIEMENS. Due to the advantages of high accuracy, maintenance free, and strong environmental adaptability of AC servo motors and AC spindle motors, grinding machines can work reliably for a long time under harsh workshop environmental conditions. The roll measurement system adopts a new type of linear grating produced by HEIDENHAIN in Germany, ensuring the accuracy of roll measurement and position control of the CNC system of the grinding machine
Functions and Features
- CNC automatic closed-loop control of grinding
- Automatic compensation of grinding wheel wear
- Eddy current flaw detection
- Grinding function of work roll with chocks
- Short-stroke grinding(adaptive grinding)
- Roll curve compensation grinding
- Automatic measuring system
- Grinding function of backup rolls with chocks
- Automatic roll matching function
- Fault alarm and automatic diagnosis, fault report and record function
- Automatic and fast approaching of grinding wheel
- Roll soft landing function
- Grinding roll workshop management system
- Automatic roll center adjustment function
- Grinding roll with chocks and bearings
Grinding of rolling mills F1-F7 and R2 working rolls with chock:
The grinding of the work roll with chocks of the rolling mill is carried out by supporting the roll shoulder on a dedicated steady rest. The chock at the end of the headstock is directly supported and fixed by hydraulic support; The chock at the end of the tailstock adopts a circular arc gear structure, and the bottom is supported by hydraulic support blocks after flipping 90°; The flat centers of the head and tail stock extend to fix the axial positions of the rolling roll. The tailstock end is designed with a two-layer structure that can adjust the parallel busbar on the roll side. After the above installation steps are completed,you can enter the automatic grinding program.
Grinding of mill backup rolls with choks:
This function refers to the use of special tools, independent oil supply and return systems, and other special components to meet the direct grinding of F1-F7 backup rolls, R2 backup rolls, R1 work rolls, etc. with bearing seats. The installation axis of the rolls is calibrated through U1 axis and tightened by manual oil cylinder.
