首先必须满足如加工范围、工作精度、生产率和经济性等等各种要求；其次确保

First of all, it must meet various requirements such as processing range, working accuracy, productivity and economy; secondly, ensure the relative position and relative movement of the workpiece and tool required by the established process. Under economic and reasonable conditions, try to use a shorter transmission chain to simplify the mechanism and improve the transmission accuracy and transmission efficiency; then ensure that the engraving machine has the stiffness, vibration resistance, thermal deformation and thermal deformation suitable for the required processing accuracy Noise level; then it should be easy to observe the processing process, easy to operate, adjust and maintain, easy to transport, load and unload the workpiece and clean up, pay attention to protection, ensure safety; and finally, ensure that the structure is simple, reasonable and reliable, and easy to process and assemble.

First, requirements such as machining range, work accuracy, productivity and economy must be met, and second, ensure the relative position and relative movement of the workpieces and tools required by the established process method. Under economic and reasonable conditions, as far as possible to use a shorter transmission chain, in order to simplify the mechanism, improve transmission accuracy and transmission efficiency, and then ensure that the engraving machine has the required processing accuracy of the stiffness, vibration resistance, thermal deformation and noise level, and then it should be convenient to observe the processing process, easy to operate, adjust and repair, easy to transport, loading and unloading workpieces and cleaning, pay attention to protection, ensure safety, and finally, ensure that the structure is simple, reasonable and reliable, easy to process and assemble.

First of all, it must meet various requirements such as machining range, working accuracy, productivity and economy; second, it must ensure the relative position and relative movement of workpiece and cutter required by the established process method. Under the economic and reasonable conditions, try to use a shorter transmission chain to simplify the mechanism and improve the transmission accuracy and efficiency; then make sure that the engraving machine has the rigidity, vibration resistance, thermal deformation and noise level suitable for the required processing accuracy; then it should be easy to observe the processing process, easy to operate, adjust and maintain, easy to transport, load and unload workpieces and clean up, note Finally, ensure the structure is simple, reasonable and reliable, easy to process and assemble.<br>