數(shù)控技術(shù)概述(參考版)
2025-01-03 01:54本頁面
【正文】 (2) nonmachine tool applications. It should be noted that the applications are not always identified by the name “ numerical control” , this term is used principally in the machine tool industry. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application The most mon applications of NC are in machine tool control, machining was the first application of NC . Machining is a manufacturing process in which the geometry of work is produced by removing excess material. By controlling the relative motion between a cutting tool and the workpiece, the desired geometry is created. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application The mon NC machine tools are listed in the following along with their typical features: NC lathe (數(shù)控車床 ) Turning requires twoaxis continuous path control, either to produce a straight cylindrical geometry or to create a profile. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application NC boring mill (數(shù)控鏜銑床 ) horizontal or vertical spindle. Boring is similar to turning, except that an internal cylinder is created instead of an external cylinder. The operation requires continuous path, twoaxis control.. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application NC drill press (數(shù)控鉆床 ) These machines use pointtopoint control of workhead and two axis control of the worktable. Some NC drill presses have turrets containing six or eight drill bits. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application NC milling machine (數(shù)控銑床 ) It requires continuous path control to perform straight cut or contouring operations. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application NC grinding machine (數(shù)控磨床 ) It is intended for finishing treatment of workparts. The grinding machine includes cylindrical, surface, internal, spindle,thread ,gearand toolgrinding machines. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application Machine center (加工中心 ) It is defined as multifunction NC machines with automatic tool changer and tool has the ability to perform drilling, turning, reaming, boring, milling, contouring, and threading operations on a single machine. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application Machine center (加工中心 ) Machining centers are classified as either vertical or horizontal. Vertical machining centers continue to be widely accepted and used, primarily for flat parts and where threeaxis machining is required on the surface of a single part such as the mold and the die. Horizontal machining centers are particularly used for the large,boxy, and heavy parts. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC Machine Tool Application Machine center (加工中心 ) . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC NonMachine Tool Application Punch presses for sheet metal hole punching (數(shù)控沖床 ) The twoaxis NC operation is similar to that of a drill press except that holes are produced by punching rather than by drilling. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC NonMachine Tool Application Presses for sheet metal bending (數(shù)控折彎機(jī) ) Instead of cutting sheet metal, these systems bend sheet metal according to programmed mands. . Chapter 1 INTRODUCTION TO NUMERICAL CONTROL Application of CNC NonMachine Tool Application Welding machine (數(shù)控焊接機(jī) ) Both sp
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