The Study Of Grinding Carriage Of New Internal Grinder

Internal grinder is a kind of Metal-cutting machine tools, mainly used for grinding the inner surface of cylindrical and conical. And the M250A is the largest machining ability in the current domestic existing series of grinder, its processing capacity:the maximum grinding diameter isφ500mm, the maximum depth is 450mm. Taian Libo Mechantronic Technology Co.LTD., in order to content the production process, needs a large internal grinder, the maximum processing capacity should be:the maximum grinding diameter isφ850mm, the maximum depth is 500mm. The processing capacity of M250A can not meet the requirements. In the economic, practical, cost-effective principles of consideration, and get through the market research, so decide to develop a high-performance internal grinder. This internal grinder not only meets the needs of the company's production and processing, but also fill up the gaps in internal grinder series, and have played a certain reference for the study of larger machine tools in the future.In the design process, reference to the traditional methods and experience which design of internal grinder, and on the basis of economy and practicaliyt, in order to achieve the high-performance, high-automation, etc., this project adopt some new technologies in the design. The internal grinder adopt he horizontal bed, the headstock only driven workpiece to do rotary movement, the workbench drives the grinding carriage to realize the vertical reciprocating motion, the grinding carriage achieves horizontal reciprocating on the workbench. The guide rail of grinding carriage is the dovetail rolling guide, reduce the integral height of the grinding carriage, enhance the stability of the grinding carriage; adopt the Double-speed motor as power source for the grinding carriage, so as to, it will be more convenient and Speedily on the installation and debugging, while using the different grinding wheel to grind different workpiece, so improve the production efficiency of Internal grinder; The Belt transmission of the principal axis of grinding carriage adopts unloading structure, the power causeed by belt drive can transmit into the grinding carriage's box, Increase the stiffness and ratation accuracy of the principal axis; We design the Turbulent Hybrid Bearing with a new pin feedback restrictor for the principal axis of grinding carriage, greatly improving the stiffness and ratation accuracy of the bearing, and ensure the quality of the product processing; In order to improve the production efficiency and ensure the quality of the product, the Grinding Wheel use the CBN as abrasive; Meanwhile Cooling System adopt the method of compulsory cooling, to enhance cooling quality, and prolong the service life of the grinding wheel, and improve the workpiece machining quality.