Erowa EDM electrode holder

How adjust sinker EDM electrode

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How adjust EROWA sinker EDM electrode workholding tool

  • 1. CNC machine EDM machine alignment tool
  •      figure 1.1. CNC aligment tool
  •   As shown in Figure1. 2,  It is a CNC  lathe  gauge that used to correct the workpiece based on cnc machine. There are three points in the figure: A, B, and C. The A and B are used to correct the level of the EDM  fixture holder to prevent the workpiece from jumping when it is rotated. The C is used to correct the centering of the holder. After the workpiece is mounted on the EDM machine fixture holder, the center of the workpiece can be in line with the center of the lathe shaft.
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  •             figure1. 2
  • 2.  wire cut EDM  Alignment tool
  •        
  •          figure 2.1
  • As shown in Figure 2.2, it is a wire cutting correction gauge. Used to calibrate the center and horizontal condition of the fixture holder during wire cutting. A, B, and C are used to correct the level of the fixture. D (ie, a small round hole) is used to correct whether the fixture seat is centered.
  • For more information,  kindly connect HPEDM company: www.cncedmtool.com, we specializes in  CNC machine tool , EDM  parts, wire EDM  machine tool, most of  which  can be compatible with Erowa ITS system chuck ,  system 3R  tooling system.  export to international market for  many years.
  •  Repeatabitly: 0.002mm,  competitive price, saving 70% cost for you. hotline: info@cncedmtool.com, skype: summer@cncedmtool.com
EROWA chuck

How operate sinker EDM electrode

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  1. Installation and usage of EDM copper electrode holder

1.1：The installation of EDM Electrode :

①The EDM electrode holder should be cleaned and assembled the centering plate , the clamp head and the electrode. Then, after setting the torque bar to 80 lbs, tighten the 4 foot screws.

②After cleaning the platform, place the  EDM electrode on the platform and check if the 4 feet are close to the platform surface.

Test  the 4 foot screws if it is the same horizontal.

The electrode has been inspected, and the 4 feet are placed on the rubber sleeve (Fig. 6) before being sent to the next processing department.

1.2：the usage of CNC group﹑ EDM group:

① test electrode holder :

After receiving the electrode holder, the operator should take off the rubber sleeve of the foot and check whether the four screws are twisted tightly.

②Mounting spigot: After checking the EDM electrode holder , the spigot can be locked.

Clean the bonding surface between the chucking spigot and the centering plate

Align the position of the centering plate with the spigot and check that the position of the spigot  matches the position of the tube on the centering plate.

Lock the spigot tightly

③mount on the chuck:

  • Use a rod to tighten the chucking spigot on chuck and check that the four feet of the clamp head are close to the plane of the chuck. After the electrode holder is installed, it can be processed.
  • ④Check if the processed electrode is centered and level:A.Remove the electrode holder from the machine and place it on the chuck  of the marble table carefully。B.After installation, check the center and level of the electrode with the calibration meter on the marble table.。
  • When the electrode holder needs to be rotated during the inspection, the electrode holder must be raised so that the four feet can be rotated , so as to prevent the four feet from hitting the chucks’ jaw。
  • After the inspection is completed, the 4 feet of the electrode holder are put on the rubber sleeve before being sent to the next processing department.
  • 1.3：EDM group﹑Wire EDM group:①After the polished electrode is sent to the EDM/wire EDM group, the operator cleans the electrode first, then removes the rubber sleeve and checks whether the screw is tight by hand.②After inspection, the electrode holder can be mounted on the  chuck of the machine for EDM die sinking.
  • 1.3：EDM group﹑Wire EDM group:①After the polished electrode is sent to the EDM/wire EDM group, the operator cleans the electrode first, then removes the rubber sleeve and checks whether the screw is tight by hand.②After inspection, the electrode holder can be mounted on the  chuck of the machine for EDM die sinking.。
EROWA EDM electrode holder

How to fix sinker EDM electrode

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How to fix HPEDM EROWA sinker EDM machine electrode

A good EROWA  EDM electrode holder combination, not only to use advanced machine production, but also skilled workers to assemble. Once the assembly is not good, it will seriously affect the positioning accuracy function of the product, which will lead to a decline in the yield. Therefore, the installation of the EROWA electrode holder assembly is notoriously “troublesome” and requires a lot. But it is also the “trouble” EROWA fixture positioning accuracy is so high!

Firstly, the electrode holder assembly is composed of several parts: a centering plate and an electrode holder. The centering plate  includes an M5 screw, a hexagonal nail, an inside piece, and a outside piece.

  • 1. Before installation, the assembler first checks the above parts. The contents of the inspection include whether the parts are damaged or not. The error of each hex nail is not within the required range and the parts are clean and flawless.
  • Check that the parts are correct before starting the installation. The first step of the installation is alignment. Firstly, the outside plate has the HPEDM logo and the direction of the  HPEDM logo marked on the electrode holder; the centering plate has a blistering base, smooth and engraved  was be on outside
  • Install the hex nail. First install the M5 screws. Note that the M5 screws and the hexagonal nails are installed in the same direction. Install the mounted M5 screws on the electrode holder.
  • It is not enough to manually install the M5 screw on the electrode holder. Also use the special torque wrench to adjust the position to 5kg (5N).

The M5 screw receives the proximity positioning surface, and then tightens it with a wrench until the wrench vibrates (ie, 5N locking force).

  1. Finally,  Adjust the electrode holder . Place the assembly on a flat table and check

that the four hex nails are flat. If unevenness occurs, adjust the balance with a normal wrench and then test on the test instrument. The precision is required to be ±0.002 mm.

For more information, please pay attention to HPEDM company www.cncedmtool.com, we specializes in  CNC EDM wire EDM  tool , most of which  can be compatible with Erowa ITS system chuck ,  system 3R  EDM and  WEDM tooling system.

HPEDM erowa chuck for EDM die sinking

How to operate CNC EDM tool

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How to operate and learn CNC EDM fixture tool system for mould making

HPEDM’s precision fixture system is divided into three major systems: CNC positioning system, EDM positioning system, zero point positioning system.

HPEDM has divided precision fixtures into three categories. Which make it easier for users to quickly find their  requirements.

Kindly check the  The  following  several  systems.

The EDM positioning system has a large similarity with the CNC positioning system, but the application of machining centers is not the same.

EDM positioning system: As the name implies, it is the precision fixture commonly used in EDM processing. It is generally worthy of a precision fixture system for spindles;

CNC positioning system is a precision fixture system for CNC machining center worktables. Both of these systems consist of similar parts. The constituent elements include the following aspects:

  1. Chuck. The chuck is the most basic part of all positioning systems. Without a chuck, the system cannot operate. If you want to use the EDM positioning system, you must have a round or square head chuck for the spindle; a CNC machining center must have a single or multiple table chuck. The difference between the chucks of these two systems is that the location used is not the same.

 

2, electrode holder: It is a tool that holds the electrode or workpiece directly. Choosing the right chuck and holding the  electrode will help improve the yield of product processing.

 

  1. The positioning plate is the main source of the accuracy obtained by the entire system. The line contact between the positioning plate and the positioning ridge of the chuck leads to flexible deformation and provides positioning accuracy of ±0.002 mm.

4, system accessories. This includes parts or replacements that maybe used in the positioning system. Such as pull nails, pull ring, anti-chip aluminum plug, valve switch and so on.

 

5, measure tool. Whether it is EDM or CNC machining, the chuck needs to be scored during the first processing. The presence of the detection element is to make the sub-inspection easier and more convenient.

6 wire cut EDM machine system. Wire cutting is one of the EDM processes and is unique to the EDM positioning system. Use wire cutting fixtures to make WEDM easier to process and more precise.

The above part constitutes the EDM positioning system and the CNC positioning system. The system seems to be more complicated, but it is also the system make it is possible to achieve rapid change-over and provide high-precision production.

The zero point positioning system can keep the workpiece from one station to another station, from one process to another, or from one machine tool to another. The zero point always remains unchanged. In this way, the auxiliary time for re-aligning the zero point can be saved, the continuity of the work can be guaranteed, and the work efficiency can be improved.

HPEDM fixture system is subdivided so as to promote the rapid positioning of fixtures and give customers a new choice. Hopefully, you will not only know about the fixture system  but also how to understand  and operate the precision fixture system.

We specialize in all kinds of CNC EDM tool . air chuck , manual chuck , self centering vise , EDM brass electrode holder,  EDM pneumatic chuck , wire cut vise, wire cut clamping beam.

Most of our products can compatible with EROWA , 3R tooling system.

Repeatability: 0.002mm.   Good price to help you save  much cost and time.

Web:  www.cncedmtool.com

EROWA graphite Eletrcial discharge machining

Advantage of EDM Graphite electrode

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Advantages of  Graphite electrode processing

 

Graphite electrodes are used for mold making and are processed by EDM  die sinking .

The increasing complexity of die geometries and the diversification of product applications have led to higher and higher demands on the accuracy of spark discharge. Graphite electrodes have the advantages of easier processing, higher discharge machining efficiency, and lower graphite loss. Therefore, EROWA fixtures are the most suitable, and some spark machine customers have abandoned copper electrodes and switched to graphite electrodes. In addition, some special-shaped electrodes cannot be made of copper, but graphite is easier to form, and the copper electrodes are heavier and are not suitable for processing large electrodes. These factors have caused partial spark machine customers to use graphite electrodes.

For the processing of the mold electrode, accuracy is the primary condition, graphite electrode processing is more complex, it is recommended to use flexible positioning fixture, HPEDM professional manufacturing flexible positioning fixture, repeatability  is 0.002mm. Products can be compatible with EROWA, 3R fixture system perfectly.

Mr Alan: info@cncedmtool.com

Miss summer: summer@cncedmtool.com

www.cncedmtool.com

HPEDM sinker EDM tool system

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How the HPEDM sinker EDM workholding tooling system  bring you benefit

The concept of the HPEDM  workhoding tool system is to establish a uniform workpiece electrode reference system on all machine tools so that each workpiece or electrode can be reloaded in one minute on each machine tool. Swedish erowa fixtures achieve micron-level positioning accuracy.

1, high efficiency: make full use of existing equipment, change the auxiliary hours of work for the actual work hours, productivity increase of 2-8 times;

2, high flexibility: to achieve flexible production, production of more varieties of small batches of products, delivery time is reduced by half;

3, high precision: the workpiece accuracy is improved to the highest machining accuracy of the machine tool;

4,High quality: Produce higher quality products and increase product added value;

5, the same positioning accuracy of the workpiece, you can control the tighter processing allowance, reduce the actual processing time;

6, can expand the scope of application of machine tools, such as 3-axis machining center can be 5-axis sided processing;

7, simple operation, simplify the training, reduce labor intensity, work more chic;

8, adaptability: without modification, can be applied to any brand of machine tools;

9, product updates more quickly, easier and more economical; improve the utilization of human resources;

10, less investment, great harvest, quick effect.

  1. Low energy consumption: Achieve  an environmentalfriendly factory.

The road to traditional crafts has been difficult to move forward. More than 80,000 companies worldwide have achieved huge economic benefits through the establishment of the Swedish erowa system.

High Precision CNC EDM Tooling system specialize in all kinds of CNC EDM workholding tool system . air chuck , manual chuck , self centering vise , EDM brass electrode holder,  EDM pneumatic chuck  wire cut vise, wire cut clamping beam.

Most of our products can compatible with EROWA , 3R tooling system.

We assure  that  the products has the same accuracy (Repeatability:0.002mm), but competitive price.

Web:  www.cncedmtool.com

 

EROWA 148 pallet for robot system

How maintain CNC EDM tool

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How to Maintain CNC EDM workholding toolgrinding EROWA chuck system

HP CNC EDM tool system Most workholding tool systems are made of hard and corrosion-resistant steel. When using on-line cutting machines, in order to maintain the corrosion resistance of the products.

Please do as the following needs:

  1. Due to the conduction of the current, ensure a stable contact between guide rail and

workpiece

  1. It’s necessary that has Solid contact with the machine table ; this will be ensured by suitable cable connections
  2. Pat attention to the conductivity of water. Incorrect conduction performance will not only affect the processing performance of your wire-cutting machine, but will also destroy the corrosion resistance of the fixture. Please confirm that the conduction value is between 5mS and 20mS. The pH of the dielectric should not be lower than PH 5.5, ideally up to PH7

 

  1. In order to maintain the working performance and corrosion resistance of CNC EDM  fixtures, it is necessary to remove the discharge residue on the components of the fixture once a week.
  2. If the fixture is used for multi-shift machining, the cleaning and maintenance work of the fixture shall be performed on the wire gap of the wire cutting machine.

Please clean, dry and maintain the fixture before storage so that there will be no problem when it use

 

For more information, please pay attention to  High Precision CNC EDM Tooling system.

We specialize in all kinds of CNC EDM tool . air chuck , manual chuck , self centering vise , EDM brass electrode holder,  EDM pneumatic chuck, wire cut vise, wire cut clamping beam.

Most of our products can compatible with EROWA , 3R tooling system.

We assure  that  the products has the same accuracy, but competitive price.

Web:  www.cncedmtool.com

What is Repeatability and application

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  1. What  is  Repeatability  

   Repeatability refers to the degree of consistency in obtaining continuous results on the same CNC machine tool using the same program and the same code to process a batch of parts.

Test erowa EDM Copper electrode

  1. The advantage of High Repeatability

 

What the advantage of Repeatability  0.002mm.

 

It will help you Save time, material, labor, equipment investment costs, save money, Improve production efficiency

 

Save time: Even experienced veterans need to spend at least 20 minutes or longer to reposition the workpiece. The experience of the master is longer. Using HPEDM fixture system with repeatable positioning accuracy of 0.002mm requires only two or three minutes to repeat the positioning of the workpiece, and the positioning accuracy is within 0.002mm.

 

 

Save Material: When machining, I believe you will often encounter such a situation. Due to the inaccurate processing accuracy, the mold becomes a defective product, which not only wastes time but also wastes material. Using our fixture system with repetitive positioning accuracy of up to 0.002mm can greatly reduce your material loss in this area.

Save manpower: HPEDM clamping system can fully help your company achieve automated production. This will not only reduce the pressure of labor costs caused by the daily increase in labor costs, but also ensure that the automated production can achieve standardized production and management convenience for the company.

 

Save equipment costs: HPEDM clamping system can be designed to hold multiple workpieces at the same time, which will greatly increase your production efficiency, which can save your company’s additional investment in equipment costs due to the heavy production load.

 

Improve production efficiency: In fact, using HPEDM workholding system can not only help your company improve production efficiency, but also improve the precision of your production, thus providing a reliable quality guarantee for the accuracy of your workpiece.

Our advantage lies in its reliable quality and ready acceptance of customer inspections. Also, we have the competitive price.  At present, we can only achieve the accuracy of positioning 0.002mm at home. Compared with other well-known foreign brands, we obviously have the advantage of price, and the quality is not inferior to other well-known foreign brands.

For more information, please pay attention to HPEDM company www.cncedmtool.com, we specializes in  CNC EDM tool which  can be compatible with Erowa ITS system chuck ,  system 3R  EDM and  WEDM tooling system.