人気ブログランキング | 話題のタグを見る

Classification of CNC lathes

Classification of CNC lathes

CNC lathes can be divided into two categories: horizontal and vertical. There are two types of horizontal lathes: horizontal guide rails and inclined guide rails. Higher-grade CNC sleeper cars generally use inclined guide rails. According to the number of tool rests, it can be divided into single-tool rest CNC lathes and double-tool rest CNC lathes. The former is two-coordinate control, and the latter is 4-coordinate control. Most of the double-tool rest cars use inclined guide rails.

Like ordinary lathes, CNC lathes are also used to machine the rotating surface of parts. Generally, it can automatically complete the processing of outer cylindrical surface, conical surface, spherical surface and thread, and can also process some complex rotating surfaces, such as hyperboloids. The workpiece installation methods of lathes and ordinary lathes are basically the same. In order to improve processing efficiency, CNC lathes mostly use hydraulic, pneumatic and electric chucks.

The shape of the CNC lathe is similar to that of the ordinary lathe, that is, it is composed of a bed, a spindle box, a tool Tungsten Steel Inserts holder, a feed system, a pressure system, and a cooling and lubrication system. The feed system of CNC lathe is qualitatively different from that of ordinary lathes. Traditional ordinary lathes have feed boxes and exchange gear racks, while CNC lathes directly use servo motors to drive slides and tool rests through ball screws to achieve feed movement. The structure of the feeding system is greatly simplified.

There are various types of CNC lathes with different specifications, which can be classified as follows.

Classification by position of lathe spindle

(1) Vertical CNC lathe The vertical CNC lathe is referred to as the CNC vertical lathe for short. The main shaft of the lathe is perpendicular to the horizontal plane, and a circular worktable with a large diameter is used to clamp the workpiece. This type Cutting Tool Inserts of machine tool is mainly used to process large and complex parts with large radial dimensions and relatively small axial dimensions.

(2) Horizontal CNC lathes Horizontal CNC lathes are further divided into CNC horizontal rail horizontal lathes and CNC inclined rail horizontal lathes. Its inclined guide rail structure makes the lathe more rigid and easy to remove chips.

Classification by basic types of machined parts

(1) Chuck-type CNC lathe This type of lathe has no tailstock and is suitable for turning disc (including short shaft) parts. Most of the clamping methods are electric or hydraulic control, and most of the chuck structures have adjustable jaws or non-quenched jaws (ie soft jaws).

(2) Top CNC lathes These types of lathes are equipped with ordinary tailstocks or CNC tailstocks, which are suitable for turning longer parts and disc parts with not too large diameters.

Sort by the number of tool holders

(1) Single-turret CNC lathes CNC lathes are generally equipped with various forms of single-turrets, such as four-station horizontal indexing tool rests or multi-station turret automatic indexing tool rests.

(2) Double turret CNC lathe The double turret configuration of this type of lathe is distributed in parallel or perpendicular to each other.

Sort by function

(1) Economical CNC lathes are simple CNC lathes formed by transforming the feed system of ordinary lathes with stepper motors and single-chip microcomputers. It is suitable for turning of rotary parts with low requirements.

(2) Ordinary CNC lathes are specially designed in structure according to the requirements of turning processing and are equipped with general CNC system. The CNC system has strong functions, high degree of automation and machining accuracy, and is suitable for turning of general rotary parts. . This CNC lathe can control two coordinate axes at the same time, namely the x-axis and the z-axis.

(3) On the basis of the ordinary CNC lathe, the turning machining center adds the c-axis and the power head. The more advanced CNC lathe has a tool magazine, which can control the three coordinate axes of x, z and c. The linkage control axis can be ( x, z), (x, c) or (z, c). Due to the addition of the c-axis and the milling power head, the processing function of this CNC lathe is greatly enhanced. In addition to general turning, radial and axial milling, surface milling, holes with a centerline not at the center of the part's rotation center, and radial holes can be performed. drilling and other processing,

Other classification methods

According to the different control methods and other indicators of the CNC system, CNC lathes can be divided into many types, such as linear control CNC lathes, two-spindle control CNC lathes, etc.; according to special or special process performance, they can be divided into thread CNC lathes, piston CNC lathes, crankshaft CNC lathes, etc. and so on.

The tungsten carbide stock Blog: https://leonarddei.exblog.jp/
by adriantrum | 2023-07-26 11:20


<< Onsrud's Hy... How to choose t... >>