What measures should Dongguan CNC Precision Processing Factory take during high-speed machining

During high-speed cutting at Dongguan CNC Precision Machining Plant, in order to maintain a basic constant feed rate per tooth of the cutting tool, the feed rate must also be significantly increased as the spindle speed increases. At present, the feed speed of high-speed cutting has reached as high as 50m/min to 120m/min. To achieve and accurately control such high feed speed, new requirements have been put forward for machine tool guides, ball screws, servo systems, workbench structures, etc.

Moreover, due to the generally short linear motion stroke on machine tools, high-speed machining machines must achieve higher feed acceleration and deceleration in order to be meaningful. In order to meet the requirements of high-speed feed motion, the following instructions are mainly used on high-speed machining machines:

1. Adopting a new type of linear rolling guide, the contact area between the ball bearing and the steel guide in the linear rolling guide is very small, and its friction coefficient is only about 1/20 of that of the slot guide. Moreover, after using the linear rolling guide, the "crawling" phenomenon can be greatly reduced.

2. The high-speed feed mechanism adopts small pitch, large size, and high-quality ball screws, or thick pitch, multi head ball screws, with the aim of obtaining high feed speed and feed acceleration and deceleration without reducing accuracy.

3. The high-speed feed servo system has developed into digitization, intelligence, and software. High speed cutting machine tools have begun to be adopted

Fully digital AC servo motor and control technology.

4. In order to minimize the weight of the workbench without losing stiffness, high-speed feed mechanisms usually use carbon fiber reinforced composite materials.

5. In order to improve the feed speed, more advanced and high-speed linear motors have been launched. The linear motor eliminates problems such as clearance and elastic deformation in the mechanical transmission system, reduces transmission friction, and has almost no reverse clearance.

The linear motor of Dongguan CNC Precision Processing Factory has high acceleration and deceleration characteristics, with an acceleration of up to 2g, which is 10-20 times that of traditional driving devices, and a feed speed of 4-5 times that of traditional ones. It is driven by a linear motor, which has obvious advantages such as large thrust per unit area, easy occurrence of high-speed motion, and no need for maintenance of the mechanical structure.