This equipment is a six-axis EDM punching machine, which can efficiently complete the small hole forming in complex positions, such as the oblique hole processing on the flame tube, guard ring, aeroengine blades, and guide vanes.

1. The basic structure of the equipment: copper tube is used as the electrode, guided by the guide, and a high-efficiency pulse power supply is applied between the electrode and the workpiece. During processing, the spindle drives the electrode to servo feed under the control of the servo system, and pulse high-frequency discharge is generated between the electrode and the workpiece to erode the workpiece in a controlled manner. During processing, high-pressure water-quality working fluid is ejected from the inner hole of the electrode, and forced chip removal and cooling are implemented in the processing area to ensure smooth processing.

2. Operation mode of the equipment: There are six coordinate axes on the machine tool, X, Y, Z, and W axes are four linear coordinate axes, and A and B axes are two rotating coordinate axes. Under the control of the CNC system, they move in a coordinated manner to perform EDM perforation processing. The rotatable swinging worktable is placed in the working area. The rotation around the Y axis is defined as the A axis, and the rotation around the Z axis is defined as the B axis. In this way, through the combination of A-axis and B-axis, the workpiece fixed on the worktable can be processed by the rotating spindle for EDM perforation on the other five surfaces except the bottom surface. The minimum division value of A-axis and B-axis is 0.001 degree, so the workpiece can be subdivided into any angle to process inclined holes.

3. Technical requirements
3.1 The guide rails and lead screws of the equipment adopt centralized lubrication to ensure the long-term and stable use of the machine tool. The guide rails and lead screws of the electromechanical components are fully protected, and the control system and pulse power supply are fully enclosed in the electric cabinet, the air intake is filtered, and there are complete dust prevention measures.
3.2 The drive system of the linear motion axis and CNC rotary axis of the equipment adopts AC servo drive system, and the X, Y, and Z axes realize full closed-loop positioning control. The rotary axes A and B also select high-precision rotary encoders to ensure high-precision rotary positioning.
3.3 The power supply of the equipment adopts digital AC pulse power supply, and the pulse parameters and processing current are controlled and output by the computer, and can be conveniently and freely set. It is equipped with short-circuit current protection, adaptive control and other functions. ((AC) nanosecond pulse power supply has no oxide layer and no micro cracks on the surface processed)
3.4 Automatic electrode repair function. Electrode trimming can be set arbitrarily after or during each hole processing. The machine tool can complete the processing of small holes on typical workpieces. Three typical workpiece drawings are provided by the buyer separately.
3.5 24-bit automatic electrode replacement system. Automatic replacement of 24 copper tubes. Copper tubes can be replaced cyclically. Equipped with ATC pneumatic spindle, electrodes can be replaced quickly. 8 guide automatic replacement systems can automatically replace 8 guide systems of different specifications at one time.
3.6 The equipment is equipped with a high-performance industrial computer with an LCD touch screen and USB and Ethernet interfaces, which is compatible with UG, AutoCAD and other software.
3.7 The equipment has single-hole processing time monitoring, recording, and single-hole timeout setting. Record all information and discharge processing parameters during hole processing, hole coordinates, electrode feed depth, each hole processing time, and discharge parameters. Each hole processing data can be saved for a long time and called and viewed at any time. Record the machining depth curve during EDM. The operator can intuitively know the penetration status of the hole based on the depth curve without using a through gauge to measure one by one. This function provides a basis for improving product quality.
3.8 The equipment has a power-off memory function and an electrode exhaustion signal function. And the remaining length of the electrode tube is monitored in real time. When the electrode is exhausted, the Z axis automatically retracts to the user-set electrode replacement position without additional operation.
3.9 The equipment has fault alarm and self-diagnosis functions.
3.10 The equipment is equipped with corresponding guides to ensure that the inclined holes on the blades and the holes that interfere with the edge plate can be processed.
3.11 The equipment is equipped with a network transmission interface and a USB interface to realize information transmission and storage. Single hole processing time monitoring function. A communication interface is reserved for easy communication with the MES system.
3.12 It has a processing parameter database, and the software has a built-in processing process parameter library. According to different materials and copper tube diameters, processing parameters can be directly selected from the process parameter library. Different processing parameter combinations can be selected for processing each hole according to process needs.
3.13 The equipment has the function of precision hole depth processing control. The depth of the processed hole is accurately controlled, and the depth error is less than 2%.
3.14 Under the condition of ensuring that the accuracy does not decrease, the maximum processing hole depth is 200mm.
3.15 Automatic support device for electrode copper tube. (Prevent the copper tube from bending and shaking).
3.16 Universal G/M code programming control, unlimited workpiece program capacity.
3.17 The wastewater generated by machine tool processing flows back to the machine tool sewage tank, and is softened by filters and ion exchange resins and reused; tap water or industrial pure water can be used directly for processing.
3.18 It can realize multi-axis linkage EDM feeding, processing special-shaped holes, EDM milling slots, EDM milling surfaces, expanding holes and boring holes, etc.