How to Accurately Master Professional Skills in Hydraulic System of Gantry Milling Machine

In recent years, with the precision requirements of the machine parts, the hydraulic system of the portal milling machine has replaced the ordinary portal milling machine. What is the essential difference between the CNC and the ordinary in the portal milling machine? The hydraulic system of the portal milling machine is developed on the basis of ordinary milling machines. The processing technology of the two are basically the same and the structure is somewhat similar. The hydraulic system of the portal milling machine is an automatic processing machine controlled by a program, so its structure is also very similar to that of an ordinary milling machine. Big difference.

The hydraulic system of the portal milling machine is mainly composed of three major parts, namely, the portal frame, the bed worktable and the electrical control system. Among them, the portal frame is composed of a column and a top beam, and there are beams in the middle, and the beam can be along the two column guides. For lifting movements, there are 1 or 2 milling heads with vertical spindles on the cross beam, which can be moved laterally along the crosshead rails. A milling head with a horizontal spindle can also be mounted on the two columns, respectively, which can be moved up and down along the column guides. These milling heads can process several surfaces at the same time. Each milling head has a separate motor (up to 150 kilowatts in power), a speed change mechanism, an operating mechanism, and a spindle component.

Compared with the planer, although the appearance of the two machine tools is similar, there is still a certain gap between the two. The main reason is that the beams and columns are not equipped with a planer tool holder but a milling cutter holder with a spindle box, and the gantry The reciprocating motion of the longitudinal table of the hydraulic system of the milling machine is not the main movement but the feed movement, and the rotary motion of the milling cutter is the main movement.

In the application of the hydraulic system of the gantry milling machine, assembling the gantry milling machine is a very important link. As an operator, learning how to assemble the gantry milling machine hydraulic system is a skill that must be mastered, including:

1. Users should have knowledge of basic electrical principles, principles and applications of commonly used factory electrical appliances.

2. It is also necessary to understand the installation, installation, use and maintenance of indoor lines, overhead lines and cable lines, common conductor types, selection and connection methods.

3, to understand the type of AC induction motor, use and operation control, maintenance, installation and maintenance.

4, commonly used power distribution equipment and control of low-voltage electrical equipment, safe operation of the power distribution station.

5, the assembly of the gantry milling machine hydraulic system should also understand the relevant transistor polarity and parameter testing, transistor circuit applications.

6, the user requirements should also understand the electrical circuit diagram commonly used electrical measuring instruments, tools and protective equipment use and maintenance.