There are various forms of numerical control milling machines in Shenzhen Machinery Processing Plant. Although the composition of different types of numerical control milling machines is different, there are many similarities. The following is an example of XK5040A numerical control vertical lift table milling machine to introduce its composition. XI saw 040A numerical control vertical lift table milling machine is equipped with IV-3MA numerical control system, which is driven by full digital AC servo. The machine tool is composed of 6 main parts. That is, the bed part, the milling head part, the worktable part, the transverse feed part, the lift table part, the cooling and lubrication part. The internal layout of the bed is reasonable and has good rigidity. There are 4 adjusting bolts on the base, which is convenient for the machine tool to adjust horizontally.

① Cooling system. The cooling system of the machine tool is composed of a cooling pump, an outlet pipe, a return pipe, a switch, and a nozzle. The cooling pump is installed in the inner cavity of the machine tool base. The cooling pump drives the cutting fluid from the liquid storage pool in the base to the outlet pipe, and then ejects it through the nozzle to cool the cutting area.

② Lubrication system and method. The lubrication system is composed of manual lubricating oil pump, oil separator, throttle valve, YouTube, etc. The machine tool adopts periodic lubrication mode, and uses manual lubricating oil pump to lubricate the spindle sleeve, vertical and horizontal guide rails and three-way ball screw through the oil separator to improve the service life of the machine tool.

Due to the use of servo motors in numerical control machine tools and the application of digital technology implementation of direct control of the working sequence and movement displacement of the execution parts of the machine tool, the gearbox structure of the traditional machine tool has been cancelled or partially cancelled, so the mechanical structure is greatly simplified. Digital control also requires the mechanical system to have high transmission stiffness and no transmission gap to ensure the execution of control instructions and the realization of control quality. At the same time. Due to the continuous improvement of computer level and control ability, it has become possible to allow more functional components to perform various auxiliary features required at the same time on the same machine tool, so the mechanical structure of the numerical control machine tool has higher integrated functional requirements than the traditional machine tool.

From the perspective of the development of manufacturing technology, with the emergence of new materials and new processes, as well as the requirements of market competition for low cost, metal cutting is moving towards higher cutting speed and accuracy, higher production efficiency and more reliable systems. This requires the numerical control machine tool developed on the basis of traditional machine tools to have higher precision. The driving power is too much, the dynamic and static and thermal stiffness of the mechanical mechanism are better, and the work is more reliable. It can achieve long-term continuous operation and as little downtime as possible.