Structural composition of cnc lathe machine

Nov 01, 2022

In today's machining field, high precision cnc lathe has been widely used in various fields. The use of flat bed cnc lathe machine can avoid problems such as insufficient structural rigidity, poor shock resistance, and large frictional resistance of sliding surfaces. And it is of great help to improve turning efficiency and reduce costs.

There are many types of cnc lathe manufacture, but they are generally composed of three parts: the main body of the lathe, the numerical control device and the servo system.

The main body of the lathe machine

1. Spindle and headstock of mini lathe machine

The rotation accuracy of the spindle of cnc lathe has a great influence on the accuracy of the machined parts, and its power and rotation speed also have a certain influence on the processing efficiency. If the spindle box of the mini lathe machine is a mini cnc lathe with automatic speed regulation function, the transmission structure of the spindle box has been simplified. As for the retrofitted mini metal lathe with dual functions of manual operation and automatic control processing, basically the original headstock is still retained.

2. Rails of lathe machine mini

The guide rail of mini lathe metal provides a guarantee for the feeding movement. To a large extent, it will have a certain influence on the stiffness, precision and stability of the mini metal lathe machine during low-speed feed, which is also one of the important factors affecting the quality of parts processing. Except for some metal lathe minis that use traditional sliding rails, the cnc lathe machines produced by stereotypes have used plastic-coated rails more.

3. Mechanical transmission mechanism of metal lathe machine

In addition to the gear transmission and other mechanisms in part of the spindle box, the mini lathe milling machine has made some simplifications on the basis of the original ordinary lathe transmission chain. The hanging wheel box, feed box, slide box and most of its transmission mechanisms have been canceled, and only the longitudinal and transverse feed screw transmission mechanisms are retained, and a few lathes have not been added between the drive motor and the lead screw. ) can eliminate its backlash gear pair.

CNC device of cnc lathe metal

In the field of CNC machine tools, the CNC device is the core of the machine tool. It mainly accepts the CNC machining program sent by the input device from the internal memory, compiles it through the circuit or software of the CNC device, and outputs control information and instructions after the operation and processing. Each part of the machine tool works so that it can move in an orderly manner.

Servo system of CNC Mini Lathe

There are two aspects in the servo system: one is the servo unit, and the other is the driving device.

The servo unit is the link between the CNC and the lathe. It can amplify the weak signal in the CNC device to form the signal of the high-power drive device. Depending on the received command, the servo unit can be divided into pulse type and analog type.

Drive decoration is to program the mechanical movement of the CNC signal expanded by the servo unit, and drive the lathe through simple connection and removal of connecting parts, so that the worktable can accurately locate the relative movement of the trajectory, and finally process the required products according to the requirements.

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