Since the composition analysis of floating laser cutting head

Since the floating part of the laser cutting head are: nozzle, automatic focusing lens and the focusing servo system. 1) Nozzle: the nozzle and nozzle size, in the form of selection has much effect on the cutting quality. The company through in-depth research and trial and error, to obtain a series of data, according to the customer's demand of specific cutting nozzle. 2) Focusing lens: the use of the energy of laser cutting, laser cutting machine must be shot of the original laser beam through the lens focus, to form the high energy density of light. According to the theory of gaussian optical focus in high power density. The longer the focal length lens, focus spot, the greater the power density is lower, but the depth of focus ( Depth of focus is to point to focus on both sides of the diameter change for 5% of the two spot spacing, also known as effective in cutting cutting range), , large permissibility of operation. 5 inch lens range greater than 3 inches lens. That is why the telephoto lens suitable for thick plate cutting, and the spacing of tracking system stability requirement is low, but it requires the laser output power & lt; / B> High. Conversely, short focal lens only suitable for the following 3 mm sheet cutting, short distance between stability of coke on the tracking system has the strict request, but it demands for the output power of the laser can be greatly reduced. 3) Auto-focus servo system: laser cutting machine autofocus system is general by focusing on the cutting head and the system automatically. Cutting head including light focused, water cooling, blowing and mechanical adjustment parts. Raise system is a closed-loop control system, by the position signal, signal processing, transformation, logic control, and motor driver of four parts. This system using capacitive sensor tracking system, also called non-contact tracking system, has the advantage of fast response and control precision. We all know that laser cutting machine cutting out products compared with traditional cutting, its smooth and fine degrees are much better