The two-spindle machining machine is capable of machining two parts at the same time, which greatly reduces the auxiliary time and is therefore popular with users. Recently, machine tool manufacturers have developed many high-speed machine tools, but more importantly, they should focus on improving the overall performance of the machine, that is, improving the productivity of the machine. Machine tool builders focus their research on four areas: further increasing machine feed rates; reducing tool change times; multi-function rotary tables and high-speed spindles.
In terms of increasing the feed rate of machine tools, many machine tool builders have recently developed high-speed ball screws and linear motors, which not only increase the feed rate of the machine, but also increase the acceleration/deceleration. At present, the highest acceleration/deceleration rate can reach 1g (they believe that the acceleration/deceleration rate of more than 1g has little effect on the improvement of production efficiency and greatly increases the production cost. It is rarely used except for processing large aircraft parts. 1g acceleration/deceleration machine).
In terms of reducing the tool change time, in addition to the development of a random automatic tool changer, a multi-function clamp capable of clamping a large number of workpieces was developed, and a machining method for reducing axial movement was adopted. The two-spindle structure used has two uses: one is to machine two workpieces at the same time; the other is to use two spindles to clamp a large workpiece. The latter can also achieve tool change during workpiece machining, which can greatly save auxiliary time and improve production efficiency.
In the development of the multi-function rotary table including the tray, we have focused on the development of components such as lightweight bearings to solve the contradiction between rigidity and precision. At the same time, it must have good flexibility and high indexing and the speed of loading and unloading the workpiece to reduce the auxiliary time and improve the production efficiency. (Finish)
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