How to select a good CNC gantry machining center quickly and correctly


1. Before the selection of the processing object of Nantong surface grinder

First of all, it is necessary to define the object to be processed. Generally speaking, it is suitable for machining many parts in one process. For the workpiece with complicated positioning, such as the multi hole machining with the requirement of positioning hole distance accuracy, it is very convenient to implement by using the high positioning accuracy of the machine tool. Repetitive production type workpiece is suitable for processing single piece small batch production. Small batch refers to 1-100 pieces, the quantity of each batch is not much, but it needs repeated production.


How to select a good CNC gantry machining center quickly and correctly


In addition, even if the shape and size of the workpiece are different, but they are similar, it is easy to realize GT process. With the help of automatic programming technology, complex shaped parts such as molds and aviation parts can be processed on the machining center. The box and plate parts are processed on the horizontal machining center by rotary table, such as spindle box, pump body, valve body, internal combustion engine cylinder body, etc. If even the top surface needs to be processed in one clamping, the pentahedron machining center can be selected. Vertical machining center is suitable for processing box cover, cylinder head, plane cam, etc. Gantry machining center is used to process large box and plate parts, such as diesel locomotive cylinder, machining center column, bed, printing wallboard machine, etc.

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2. According to the size of the workpiece, the size of the worktable and the stroke of three linear coordinate systems are determined. The size of the worktable should ensure that the workpiece can be clamped on it smoothly, and the machining size must be within each coordinate stroke. In addition, the limitation of tool change space and each coordinate interference area should be considered.

3. The accuracy of the selected machining center is classified into ordinary type and precision type, and the main accuracy items are shown in the following table: the main accuracy items of the machining center are ordinary type (mm) precision type (mm) linear positioning accuracy ± 0.01/whole course ± 0.005/whole course repeated positioning accuracy ± 0.006 ± 0.002.


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