Milling machine parts processing customization
Milling machine refers to the machine tool which mainly uses milling cutter to process various surfaces on the workpiece. Generally, the milling cutter is mainly rotating, and the movement of the workpiece (and) milling cutter is feed motion. It can process plane, groove, surface, gear and so on.
Milling machine is a machine tool which uses milling cutter to milling workpiece. Besides milling plane, groove, tooth, thread and spline shaft, milling machine can also process more complex profile, and has higher efficiency than planer, and is widely used in mechanical manufacturing and repair department.
Types of milling machines
1. according to its structure:
( 1) Table milling machine: a small milling machine for milling instruments, instruments and other small parts.
( 2) Cantilever milling machine: a milling machine with a milling head mounted on a cantilever, and the bed is arranged horizontally. The cantilever can usually move vertically along the column guide rail on one side of the bed, and the milling head moves along the cantilever guide rail.
( 3) Pillow type milling machine: the milling machine with the main shaft installed on the ram, the bed body is arranged horizontally, the ram can move horizontally along the guide rail of the saddle, and the saddle can move vertically along the column guide rail.
( 4) Gantry milling machine: the bed is arranged horizontally, and the columns and connecting beams on both sides constitute the milling machine of the gantry. The milling head is installed on the beam and column, and can be moved along its guide rail. Generally, the beam can move vertically along the column guide rail, and the workbench can move along the guide rail of the bed. Used for large parts processing.
( 5) Plane milling machine: used for milling plane and forming surface milling machine, the bed is arranged horizontally, usually the workbench moves along the guide rail of the bed in longitudinal direction, and the main shaft can move axially. It has simple structure and high production efficiency.
( 6) Profiling milling machine: a milling machine for profiling the workpiece. It is generally used for processing complex shape workpiece.
( 7) Table milling machine: a milling machine with a lifting table which can move vertically along the guide rail of the bed. The working table and saddle usually installed on the lifting table can be moved longitudinally and horizontally.
( 8) Rocker milling machine: the rocker arm is installed on the top of the bed, and the milling head is installed at one end of the rocker arm. The rocker arm can rotate and move in the horizontal plane. The milling head can rotate the milling machine with a certain angle on the end face of the rocker arm.
( 9) Bed milling machine: the table can not be raised and down, and it can move vertically along the guide rail of the bed, and the milling head or column can be used as the milling machine with vertical movement.
The process of custom processing of parts has extremely strict requirements. A slight carelessness in processing will cause the error of the workpiece to exceed the tolerance range, requiring reprocessing, or announcing that the blank is scrapped, which increases the cost of production. Therefore, what are the requirements for parts processing can help us improve production efficiency. The first is the size requirements, and the processing must be carried out in strict accordance with the shape and position tolerance requirements of the drawings. Although the size of the parts processed by the enterprise will not be exactly the same as the size of the drawing, the actual size is within the tolerance of the theoretical size, and it is a qualified product and is a part that can be used.
Customized processing of parts often involves surface treatment and heat treatment processes, and surface treatment should be placed after mechanical processing. And in the machining process, the thickness of the thin layer after surface treatment should be considered. Heat treatment is for the cutting performance of the metal, so it needs to be performed before machining.
Customized processing of parts and components is followed by equipment requirements. Rough and fine processing should be carried out with equipment of different performance. Since the rough machining process is to cut most parts of the blank, a large amount of internal stress will be generated in the workpiece when the feed rate is large and the cutting is large, and the finishing process cannot be performed at this time. When the workpiece is finished after time, it should work on a relatively large machine tool, so that the workpiece can achieve high precision.