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After the workpiece is once clamped on the machining center, the digital control system can control the machine tool to automatically select and replace the tool according to different processing procedures, automatically change the machine tool spindle speed, feed speed, and the movement track of the tool relative to the workpiece and other auxiliary functions. Complete the processing of multiple processes on multiple surfaces of the workpiece. And there are multiple tool changing or tool selection functions, so that the production efficiency is greatly improved.
Due to the concentration of processes and automatic tool change in the machining center, the time for clamping, measuring and machine tool adjustment of the workpiece is reduced, so that the cutting time of the machine tool reaches about 80% of the machine tool start-up time (only 15% to 20% for ordinary machine tools); At the same time, it also reduces the workpiece turnover, handling and storage time between processes, shortens the production cycle, and has obvious economic effects. Machining centers are suitable for small and medium-sized batch production with complex parts shapes, high precision requirements, and frequent product replacement.
Compared with the vertical machining center, the horizontal machining center has a complex structure, a large footprint, and a higher price. Moreover, the horizontal machining center is inconvenient to observe during machining, and it is inconvenient to clamp and measure parts, but it is inconvenient to remove chips during machining, easy and good for processing.
CNC Horizontal machining center is divided into fixed column type and mobile column type according to whether the column moves.
(1) The worktable moves in a cross direction, the worktable moves in the X and Z directions, and the headstock moves in the Y direction. The headstock has two types of hanging and side hanging on the column. It is suitable for multi-process processing such as boring and milling of medium-sized and complex parts.
(2) The spindle box moves in cross direction, the spindle box moves in X and Z directions, and the table moves in Y direction. It is suitable for multi-process processing such as boring and milling of small and medium-sized parts.
(3) The spindle box is hung on the side and the column, and the spindle box moves in the Y and Z directions. This layout is similar to the planer type horizontal boring machine, and the worktable moves in the X direction. It is suitable for multi-process processing such as boring and milling of medium-sized parts.
(1) Planer type, the bed is T-shaped, the worktable moves in the X direction on the front bed, and the column moves in the Z direction on the back bed. The spindle box has two types of hanging and side hanging on the column for Y-direction movement. It is suitable for multi-process processing such as boring and milling of medium and large parts, especially long parts.
(2) Column cross motion type, the column moves in Z and U (parallel to the X direction), the headstock moves in the Y direction on the column, and the worktable moves in the X direction on the front bed. It is suitable for multi-process processing such as boring and milling of medium-sized and complex parts.
(3) For the spindle ram feed type, the spindle box moves in the Y direction on the column, and the spindle ram moves in the Z direction. The column moves in the X direction. The table is fixed or equipped with a rotary table. It can be equipped with multiple worktables, which is suitable for processing small and medium-sized multiple parts, and the time of workpiece loading and unloading and cutting can be overlapped.
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