Shangshan Precision Machinery: What is the repair and replacement method of the gantry machining center?


In the machining process of the gantry machining center, the loss of each part of the electrode is uneven. The purpose of electrode trimming is to restore the shape of the pretreatment electrode. The time interval between the two trimmings is determined by the wear state, so it is necessary to roughly predict the electrode wear state. After an electrode is used for processing for a period of time, the processing between the electrode and the workpiece is stopped, and the electrode is discharged and processed together with other standard electrodes, so that the electrode is completed after the loss.
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In the trimming-controlled machining center, the electrode to be trimmed becomes the workpiece. Therefore, it is necessary to appropriately change the machining parameters (processing or even polarity). Ball head electrode, reference graphite lathe electrode can use spherical concave anti-copy finishing machining discharge machining to achieve its shape. In the case of severe electrode wear, the electrode can be exchanged to a rod-shaped flat head electrode, which can be used for trimming and cutting some worn-out flat electrodes. Therefore, the standard library electrode used in machines and machining centers has an automatic tool change function.

In the actual processing process of the manufacturing enterprise of the gantry machining center, the cavity mold is processed by a rough, medium, and fine step-by-step processing method. The high-power, low-loss rough machining standard solves the contradiction of processing speed; while in the medium and fine machining, although the tool electrode loss is relatively large, in general, the medium and fine machining allowance only accounts for the total machining A small part, so the absolute loss of the tool electrode is very small, which can be compensated by machining size control, or ignored without affecting the accuracy requirements.

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