What is the milling machine for?

Milling machine is a widely used machine tool, which can not only mill planes, grooves, gear teeth, threads and spline shafts, but also process more complex contours, with higher efficiency than planer. There are many kinds of milling machines, which are distinguished according to layout and application scope, mainly including lifting table milling machine, gantry milling machine, single-column milling machine and single-arm milling machine, instrument milling machine and tool milling machine. Let's know about the use and types of milling machines. 1. What does the milling machine do?

Milling machine mainly refers to a machine tool for milling various surfaces of workpieces with milling cutters. It is widely used. Except machining plane (horizontal plane and vertical plane), groove (keyway, T-groove, dovetail groove, etc. ), toothed parts (gears, splined shafts, sprockets), helicoids (threads, spiral grooves) and various curved surfaces, and can also be used for machining the surface and inner hole of a revolving body.

When the milling machine is working, the workpiece is mounted on the accessories such as the workbench or the indexing head, and the rotation motion of the milling cutter is the main motion, supplemented by the feeding motion of the workbench or the milling head, so that the workpiece can obtain the required machining surface. Because it is multi-tool intermittent cutting, the productivity of milling machine is higher than that of planer, and it is widely used in machinery manufacturing and repair departments.

Simply put, a milling machine is a machine tool that can mill, drill and bore a workpiece.

2. What are the types of milling machines?

In general, milling machines can be classified according to their layout, scope of application, machine tool structure and control mode. The following small series briefly introduces the common types of milling machines.

(A) according to the format and scope of application to distinguish.

1, lifting table milling machine: universal, horizontal and vertical, etc. , mainly used for processing small and medium-sized parts, the most widely used.

2. Gantry milling machine: including gantry milling and boring machine, gantry milling and planing machine and double-column milling machine, all of which are used to process large parts.

3. Single-column milling machine and single-arm milling machine: the horizontal milling head of the former can move along the column guide rail, and the workbench can feed longitudinally; The vertical milling head of the latter can move horizontally along the cantilever guide rail, and the cantilever can also adjust its height along the column guide rail. Both of them are used to process large parts.

4. Milling machine without lifting table: there are two kinds of rectangular table and circular table, which is a medium-sized milling machine between lifting table milling machine and gantry milling machine. Its vertical movement is completed by the lifting of the milling head on the column.

5. Instrument milling machine: a small lifting table milling machine for processing instruments and other small parts.

6. Tool milling machine: It is used for manufacturing molds and tools, equipped with various accessories such as vertical milling head, universal angle workbench and plug, and can also be used for drilling, boring and slotting.

7. Other milling machines: such as keyway milling machine, cam milling machine, crankshaft milling machine, roller journal milling machine, square ingot milling machine, etc. It is a special milling machine for machining corresponding workpieces.

(2) according to the structure of the milling machine to distinguish

1. Desktop milling machine: a small milling machine used for milling small parts such as instruments and meters.

2. Cantilever milling machine: the milling head is installed on the cantilever, and the bed is horizontally arranged. Generally, the cantilever can move vertically along the column guide rail on one side of the lathe bed, and the milling head moves along the cantilever guide rail.

3. Ram-type milling machine: a milling machine with the spindle mounted on the ram.

4. Gantry milling machine: the bed is horizontally arranged, and the columns and connecting beams on both sides of the bed form a gantry milling machine. The milling head is installed on the beam and column and can move along its guide rail. Usually, the beam can move vertically along the column guide rail, and the workbench can move longitudinally along the bed guide rail for processing large pieces.

5. Plane milling machine: a milling machine used for milling planes and forming curved surfaces.

6. Copying milling machine: a milling machine for copying workpieces. Generally used for machining workpieces with complex shapes.

7. Lifting table milling machine: milling machine with lifting table, which can move vertically along the guide rail of the bed. Usually, the workbench and saddle installed on the lifting platform can move vertically and horizontally respectively.

8. Rocker milling machine: Rocker milling machine can also be called turret milling machine, rocker milling machine and universal milling machine. Machine turret milling machine is a kind of light general metal cutting machine tool, which has both vertical and horizontal milling functions, and can mill planes, inclined planes, grooves and splines of medium and small parts.

9. Bed-type milling machine: a milling machine in which the workbench can not be lifted, but can move longitudinally and transversely along the guide rail of the bed base, and the milling head or column can move vertically.

10, special milling machine: for example, tool milling machine: the milling machine used for milling tool molds has high machining accuracy and complex machining shape.

(C) according to the control mode to distinguish

Milling machines can be divided into copying milling machines, program-controlled milling machines and CNC milling machines.

1, copying milling machine: refers to a semi-automatic machine tool that controls the motion trajectory of a tool or workpiece according to a template or template.

2. Program-controlled milling machine: Compared with ordinary machine tools, using simple industrial procedures to finish the workpiece milling machine can reduce manual intervention and improve production efficiency.

3. CNC milling machine: a milling machine that is completely controlled by computer digital programming. It only needs to draw three-dimensional graphics on the computer or carry out simple programming, and the milling machine will automatically complete the workpiece processing without manual intervention.