The difference between machine tools and lathes

The difference is that the level and classification of the two are different.

Machine tool is the general name of metal cutting equipment, which is divided into lathe, milling machine, planer and drilling machine. Lathe is a turning equipment and a kind of machine tool.

1, machine tools refer to machine manufacturing machines, also known as machine tools or machine tools, which are customarily called machine tools and are generally divided into metal cutting machines, forging machines and woodworking machines.

2. Lathe is a machine tool that mainly turns rotating workpieces with turning tools. On the lathe, you can also use drills, reamers, taps, dies and knurling tools for corresponding processing.

3. Lathe is mainly used to process workpieces with revolving surfaces such as shafts, disks and sleeves, and it is the most widely used machine tool in machinery manufacturing and repair shops.

A, machine tools:

Machine tool (English name: machine tool) refers to the machine that makes machines, also known as working mother machine or machine tool, and is customarily called machine tool. Generally divided into metal cutting machine, forging press and woodworking machine.

There are many processing methods of mechanical parts in modern mechanical manufacturing: besides cutting, there are casting, forging, welding, stamping, extrusion and so on. However, parts with high precision and fine surface roughness generally need to be finally machined by cutting on a machine tool. Machine tools play an important role in the modernization of national economy.

The quality of the machine tool itself directly affects the quality of the machine. There are many ways to measure the quality of a machine tool, but the main requirements are good manufacturability, high serialization, generalization and standardization, simple structure, light weight, reliable work and high productivity.

Second, the lathe:

Type:

1, ordinary lathe

It has a wide range of machining objects, a wide range of spindle speed and feed adjustment, and can process internal and external surfaces, end faces and internal and external threads of workpieces. This kind of lathe is mainly operated by workers, which has low production efficiency and is suitable for single-piece and small-batch production and repair workshops. ?

2, turret and rotary lathe

It has turret tool rest or turret tool rest that can hold multiple tools. Workers can use different tools to complete various processes in one clamping, which is suitable for mass production.

3, automatic lathe

According to certain procedures, the multi-process machining of small and medium-sized workpieces can be automatically completed, and a batch of the same workpieces can be repeatedly processed, which is suitable for mass production.

4, multi-tool semi-automatic lathe

There are uniaxial, multi-axial, horizontal and vertical. The layout of single-axis horizontal lathe is similar to that of ordinary lathe, but two groups of tool holders are installed at the front and back of the spindle or up and down, respectively, to process disc, ring and shaft workpieces, and its productivity is 3 ~ 5 times higher than that of ordinary lathe.

5, copying lathe

It can imitate the shape and size of a template or sample and automatically complete the machining cycle of the workpiece (see copying machine tool). It is suitable for small batch and batch production of workpieces with complex shapes, and the productivity is 10 ~ 15 times higher than that of ordinary lathes. There are many types, such as multi-tool rest, multi-axis, chuck type and vertical type.

6, saddle lathe

Saddle lathe is recessed at the left end of spindle box, which can accommodate large-diameter parts. The lathe is shaped like a saddle, so it is called a saddle lathe.

Saddle lathe is suitable for machining parts with large radial dimension and small axial dimension, turning excircle, inner hole, end face, groove and metric, imperial, modular and radial threads of workpieces, and also for drilling, boring and reaming, especially for single-piece and batch production enterprises.

Saddle lathe can process larger diameter workpiece in saddle groove. Hardening and fine grinding of machine tool guide rail, convenient and reliable operation. Lathe has the characteristics of high power, high speed, strong rigidity, high precision and low noise.

Reference link: Baidu Encyclopedia: Lathe

Baidu Encyclopedia: Machine Tool