High Precision EDM Drill Machine
They are generally used as supporting equipment for electric discharge wire cutting machines, for threading holes in electric discharge wire cutting, chemical fiber spray heads, group holes in sieve plates, engine blades, heat dissipation holes in cylinder bodies, air path holes, etc.
- Product Introduction
High precision edm drill machine
In recent years, High precision edm drill machine have developed rapidly and are widely used in precision mold processing. They are generally used as supporting equipment for electric discharge wire cutting machines, for threading holes in electric discharge wire cutting, chemical fiber spray heads, group holes in sieve plates, engine blades, heat dissipation holes in cylinder bodies, air path holes, etc. They are suitable for processing fine and ultra deep holes in various metals and superhard conductive materials. While high precision edm drill machine are widely used, it is also important to pay attention to maintenance and upkeep. What should be noted when using them?
(1) The crankshaft inside the high precision edm drill machine water pump is under very high pressure, so the lubricating oil needs to be replaced immediately after a period of operation. If not replaced in time, it will cause serious consequences. Because the water pump is a very important component in a small hole machine, if there is a problem with this component, it will affect the use of the entire machine tool.
(2) The rotary head of the high precision edm drill machine works under high pressure, and its sealing components need to be replaced regularly. If it is replaced in case of water leakage, it is possible that water has already penetrated the bearings, resulting in even greater losses.
(3) After each use of the high precision edm drill machine, the water and workpiece residue on the workbench should be cleaned up It is also necessary to regularly clean the dust inside the electrical box, which is beneficial for the heat dissipation effect of electrical components. If the dust on the printed circuit board is not removed, it will easily absorb moisture and corrosive substances from the air over time, corroding the small conductive copper skin and causing machine malfunctions.
(4) The mechanical part of the high precision edm drill machine (mainly the constantly moving parts) needs to be lubricated with lubricating oil or guide rail oil as required.
Product Introduction of High Precision Electric Spark Drilling Machine
一, Overview and Core Definition
High precision electric discharge drilling machine is a special processing equipment specifically used for machining small, large depth to diameter, high-precision holes on conductive materials. It overcomes the bottleneck of traditional mechanical drill bits being prone to breakage, wear, and difficult to machine on hard and tough materials when processing micro holes.
Core principle: Based on the principle of electrical discharge corrosion. Using a hollow tubular electrode (usually a copper or galvanized tube) with high-pressure deionized water (or emulsion) inside, pulse spark discharge is generated between the electrode and the workpiece, gradually eroding the metal and forming the desired hole.
二, Unique working methods and core components
Its working method is significantly different from traditional EDM or mechanical drilling:
1. Tubular electrode:
The electrode is a hollow metal tube, with a standard diameter range typically between 0.1mm and 3.0mm.
The electrode undergoes continuous rotational motion and servo feed along the axial direction during the machining process. Rotation ensures the roundness of the machining and the uniformity of the side clearance; Servo feed ensures continuous discharge.
2. High pressure internal flushing system:
This is the key. High pressure working fluid (usually at a pressure of 5-15kgf/cm ² or higher) is ejected at high speed from the central hole of the tube electrode.
Function:
Cooling: Cooling the discharge area.
Chip removal: Forcefully removing the erosion products (metal particles) from the extremely small machining gap is a necessary condition for achieving deep hole machining.
Maintaining discharge: High voltage liquid flow helps to break down the discharge channel and ensure stable machining.
Guidance device:
A high-precision mechanical component located at the lower end of the spindle, very close to the workpiece. It is used to support and guide the electrode when it extends for a long time (during deep hole machining), preventing it from bending and vibrating due to high-pressure flushing and its own slender shape. This is the core component that ensures the straightness and accuracy of the hole.
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