Working principle

High speed small hole drilling machine adopt electrode to drill hole according electrical discharge theory. Is to use the fine metal copper tube (called electrode tube) which moves vertically up and down continuously as an electrode,cooperate with high pressure water plush to perform pulse spark discharge on the workpiece to remove the metal and form it. The electrode is a hollow copper rod, and the working fluid (water or drilling fluid) passes through the fine hole in the middle of the hole of the copper rod, which plays the role of cooling and chip removal. As the liquid has to pass through the small hole of copper tube during processing, the processing micropore may block the copper tube, so the electromagnetic pneumatic booster pump is used for the small hole less than 0.3mm, and the copper tube electrode is not easily blocked during processing, so more precise holes can be processed! Use liquid booster water pump with diameter larger than 0.3mm .

Application

High speed small hole drilling EDM machine is used for drilling fine holes and ultra-deep holes φ 0.2mm-3.0mm in many kinds of metals (such as stainless, quenched stells, carbide, coper, aluminum and other conductive materials) as well as super-hard conductors(such as hardalloysteel),the depth-diameter ration can reach to 300:1.Due to affordable cost and good performance, widely used to wire cutting initial holes,、and chemical fiber spinneret, spinneret hole of spinneret plate, filter plate, group holes of sieve plate、engine blade、heat dissipation hole of cylinder、the hydraulic、oil way of air operated valve、stomata. It can also erode the drill bit or taps broken in the working piece without destroy the original hole or screw.

Mechanical Features

Ø The classic integrated design is adopted, which has beautiful shape, novel structure, superior performance and modern industrial flavor.

Ø The operation console cantilever-mounted, and its position and orientation can be adjusted at will, making the operation more convenient and quick.

Ø The X,Y,Z three-axis moving parts of the machine tool adopt precision linear guideway and ball screw.

Ø X, Y and Z axes adopt servo system and servo motor, which has high speed and accurate positioning.

Ø The workbench moves fast, which shortens the moving time between holes and improves the processing efficiency.

Ø The structural parts are manufactured from high quality cast iron.

Ø The rotary head is of straight gear transmission.

Ø The specialty plunger pump, thread gap filter

Ø The marble working table, semi-submerged work tank.

Ø Equipped with stainless steel workpiece installation fixture

Ø Equipped with centralized lubrication system.

Controller characteristics

Ø Can drill deep hole with diameters 0.3 ~ 3mm (the depth-diameter ratio is 300:1）.

Ø The speed of drilling hole is 10mm-100mm depth per minute (it is different for different material)

Ø Can drill small holes on the various conductive materials, even semiconductor material, especially stainless steel, chilled steel, copper, aluminium and hard alloy etc.

Ø Can drill on oblique and curved surface directly.

Ø Can easily erode the drill and screw tap etc which is broken in the workpiece and not destroy the screw thread of the holes.

Ø The working water can be normal water or saponification fluid and no pollution is brought.

Ø Convenient system operation, easy to use.

Ø Hand remote control box operation.

CNC System software operation function:

Ø Control system with CYANG independent intellectual property, control system build in IC of control module with drawing software. Auto transfer between drawing and points machining.

Ø AutoCAD.dxf, G code can be read and changing to points machining.  

Ø AUTOCAD software can be used for programming.

Ø Can real time monitor the drilling condition and adjust the HF power to improve the drilling efficiency.

Ø Intelligent database based on a large number of testing for different machining requirement and can be upgraded for free.

Ø Operation and input: touch screen, keyboard and mouse.

Ø Absolute coordinate and relative coordinates facility for positioning and machining.

Ø Function of drawing coordination conversion, zoom, rotation, tracing and displaying.

Ø Auto Short circuit manage function.

Ø Memory function, Auto stop once finishing, stop point setting functions.

Ø Auto edge finding, centering, coordinate setting, original finding, transfer between absolute coordinate and relative coordinate.

Ø Process path program, interpolation function.

Ø Menu technology, Auto program function.

Ø G code and other files management, Internet date transfer, flash disc reading.

Ø Auto-repair the electrodes.

Ø Gap servo follow function.

Ø Auto clear Z axis, depth setting function.

Ø Function shift manual or CNC mode machining.