现在市面上流行的小型雕刻机工作台主要有两种。第一种如图1所示工作台只作Y方向的移动，而刀具作X方向和Z方向的移动。第二种则如图2所示工作台作X,Y方向的移动，而刀具只作Z方向的移动。

　　结构1的优点是制作容易，结构稳定。但由于工件随工作台移动，所以不能加工太重的工件，而且雕刻机尺寸不能太大。结构2虽然制作也较容易，然而稳定性要比结构1差很多。由于本次设计对机械部件结构的要求就是要小而轻便，加工工件的质量也是比较轻，因此选用结构1。

　　在该结构中，机械本体部分是雕刻机的骨架，有底座、立柱、工作台、机头和主轴组件等部分。在保证整个系统的机械刚性的前提下，为了简化设计的结构，减轻整机重量，缩短产品的设计和制造的周期，其主体框架采用铝合金制造，防护件用塑料件制造，用标准的紧固件和定位销连接。-Now the market popular small engraving machine mainly has two kinds. First, as shown in Figure 1work station only Y directional movement, and the tool for X direction and the Z direction of mobile. The second is as shown in Figure 2work station for X, Y directional movement, and the cutting tool is only Z directional movement.Structure 1has the advantages of easy fabrication, structure stability. But as a result of the workpiece with the motion of the working table, so not too heavy workpiece processing, and engraving machine size too large. Structure 2although the production is easy, but the stability of structure 1is much worse than. Due to the design of mechanical parts requirement is to be small and lightweight, machining quality is also quite light, therefore the selection of structure 1.In this structure, the mechanical part is the engraving machine frame, a base, a column, table, machine head and the spindle components such as part of. To ensure the whole system of the mechanica