The overall structure of the CNC lathe is the same as that of the ordinary lathe. It also has the basic components such as the bed, spindle, tool rest, carriage, and tailstock, but the CNC operation panel and display monitor are the unique components of the CNC machine tool. Generally, it includes the following four parts: machine tool body, control part, driving device, and auxiliary device.

The basic structure of CNC lathe

1. Machine tool body

The main body of the machine tool is the mechanical part of the CNC lathe, which usually includes the headstock, bed saddle and tool rest, tailstock, feed mechanism, bed, etc.

2. Control part

(CNC device) the control part is the control core of the CNC lathe, which generally includes a special computer, LCD, control panel, strong current control system, etc.

3. Drive unit

The driving device is the driving part of the actuator of the CNC lathe, including the spindle motor, feed servo motor, etc.

4. Auxiliary devices

Auxiliary devices refer to some supporting components on the CNC lathe, including tool setting instruments, lubrication, hydraulic and pneumatic devices, cooling systems, and chip removal devices.

Purchasing skills of CNC lathe

1. Preliminary preparation

Determine the process requirements of typical parts and the batch of processed workpieces. The function of the proposed CNC lathe is to make preliminary preparations. The prerequisite for rational selection of CNC lathe meets the process requirements of typical parts.

The process requirements of typical parts are mainly the structural dimensions, machining range, and accuracy requirements of parts. The control accuracy of the CNC lathe is selected according to the accuracy requirements, that is, the dimensional accuracy, positioning accuracy, and surface roughness of the workpiece. Reliability is the guarantee to improve product quality and production efficiency. The reliability of CNC machine tools means that when the machine tool performs its functions under specified conditions, it can run stably for a long time without failure. That is, the mean time between failures is long. Even if there is a failure, it can be recovered in a short time and put into use again. Select machine tools with reasonable structure, excellent manufacturing, and mass production. Generally, the more users, the higher the reliability of the CNC system.

2. Selection of machine tool accessories and cutting tools

Machine tool accessories, spare parts, their supply capacity, and cutting tools are very important for CNC lathes and turning centers that have been put into production. When selecting a machine tool, it is necessary to carefully consider the compatibility of tools and accessories.

3. Pay attention to the identity of the control system

Manufacturers generally choose the products of the same manufacturer and at least choose the control system of the same manufacturer, which brings great convenience to the maintenance work. In teaching units, because students need to be knowledgeable, it is a wise choice to choose different systems and equip them with various simulation software.

4. Select according to the performance-price ratio

Make sure that the function and accuracy are not idle and wasted, and do not choose functions that are irrelevant to your own needs.

5. Protection of machine tools

When necessary, the machine tool can be equipped with fully enclosed or semi-enclosed protective devices and automatic chip removal devices. When selecting CNC lathes and turning centers, the above principles should be comprehensively considered.

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