Laser marking machine in the history of the three processes

Laser marking equipment, is the core of Apple's mobile laser marking control system, therefore, HC9E the course of development is the subject of laser marking control system SR85E development process. From 1995 to 2003, a short period of eight years, the control system in the exhibition area of laser marking the company experienced a large-format on the age, the times to switch transistor and the galvanometer mirror the times, the control mode has also completed the resistance to the upper and lower direct control from software position control to the real-time processing, time-multiplexing the evolution of a series of capacitors, and now, semiconductor lasers, fiber lasers, and even the appearance of UV laser-search and development for process control of optical ERP raised new challenges.
         1. Large Format Times
         The so-called large-format, the beginning is the Beijing plotter laser marking machine laser control part codes used directly on the laser equipment will be removed drawing pen, laser marking in (0,0) of point X-axis, Y-axis point and the original location of the drawing pen 45 °, respectively, returned to install mirrors, retractable doors in the original location of the bottom of the drawing pen equipped with small focusing lens shutter doors, to turn light path and to make beam focusing. The direct use of graphics software engine room fitting out print command can be driven optical path of the running, this way the most obvious ups offer great advantage is that format, and can basically satisfy the precision of an uninterruptible power supply relatively low marking requirements, does not require a dedicated mountain Special ups marking software; However, there is marking in this way is slow, the control precision is low, T-arm mechanical wear big, reliability is poor, some disadvantages such as size. Thus, after initial attempts, the drawing ceremony, large-format laser marking system, marking gradually withdraw from the market, but now applied the same type of large-format devices are basically copying long ago, such control process, with the servo motor drive high-speed large-format systems, as the three-dimensional dynamic focusing galvanometer scanning system, the gradual improvement of large-format system will gradually disappear from the field of laser marking.
         2. Switch to mirror the times
         As seen a series of large-format system, shortcomings in high-speed galvanometer technology has not been widely available in China's case, some control engineers, developed by the stepper motor-driven rotating mirror scanning system, its working principle is from the to export the laser cavity through the beam expander, after a 90 ° to install two stepper motor-driven mirror reflection of gold from the F-theta focusing lens after the output of the role of the market to handle objects, the gold mirror plane rotation so that the work of on the laser point at X, Y axis movement, two mirror-coordinated action to make laser can work plane to complete a straight line and a variety of curve movement. This control process in terms of speed or positioning accuracy for both far exceeding the large-format, and therefore to a large extent to meet the tool industry for laser control requirements, while popular in the international market with galvanometer scanning system, there are more obvious the gap, but strictly speaking this design idea of the emergence and gradual improvement of laser application represents a milestone in China is China is fully capable of its own design and production of laser application equipment, a typical sign. Until the galvanometer in China, the rise of large-scale applications, this control method was gradually withdraw from the stage of China's laser applications