Manual de electroerosionadora

Valores de desgaste de electrodos Figura 6. Figura 8. Diagrama de flujo de home en X, Y, Z. Mecanismo longitudinal. Mecanismo transversal. Figura Tabla 4. Electrodo de grafito 7 mm Tabla 3.

Helmi A. Therefore, only positive numbers can be input. In other words, when the vertical depth is at Z, Z axis ascends to Z1. Then, X axis moves 15mm, and Y axis moves 20mm.

After that, the tool proceeds the machining for 2nd hole. The moving path is as following figure shown.

N1N5 End positionX60 Y X code stands for the no. Y code stands for the no. In other words, If the vertical depth is at Z Then, X axis moves 15mm, and the tool begins to machine the 2nd hole.

After the tool machines 6 holes on X axis, the tool moves 20mm to Y axis, and continue to machine the 2nd row. The tool proceeds the machining in this order. The tool moving path is as the following figure shown N1N End position X0 Y ActionMake a round Matrix multiple hole machining.

N code stands for the no. Therefore only positive numbers can be input. HR is the radius of round matrix. The tool moves 20mm to X axis, and begins to machine hole N1 till the tool is at Z The tool moving path is as the following figure shown.

N1N8 End position X ActionTrim the plane round, or round the angle. Horizontal Radius HR : 0. The tool moves to X axis to proceed the machining till the tool is at the maximum radius 0. Then, every counterclockwise turn of 30, the tool machines the circumference once. Residue removing P. Only positive integrals can be input. Firstly, the tool moves to X axis to work till the tool is at the maximum radius 0.

The start angle of work begins from 0. Every reverse turn of 30, the tool machines the circumference once till the circle turns It is one cycle. Work path. ActionTrim the edge, or round the angle of the column vector.

Vertical DepthVD: When the input unit is mm, the input parameter The tool works at 0till the tool is at the maximum radius 0. The tool works on the circumference at each reverse turn of 30till the tool is at the maximum radius 0. The tool stops at The work ends.

ActionTrim the edge, or round the angle of the plane square vector. The horizontal increment angle is built in. The range is 45only. Firstly the tool works at 0till the tool reaches the radius 0.

Then, in counterclockwise direction, the tool works at The program will automatically figure out the linear cutting distance of 45 till the tool reaches ActionTrim the edge or round the angle of the square column vector.

Firstly, the tool works at 0 till the tool is at the maximum radius 0. Then, the tool works at every reverse turn of 30till the tool is at the maximum radius and the depth -2mm. The program will automatically figure out the linear cutting distance of The tool will stop at ActionTrim the edge or round the angle. Firstly, the tool works at 45till the tool is at the maximum radius 0. The depth VD stands for the tool in clockwise direction working at 65after the tool cuts 1mm on Y axis.

Then, the tool is at the maximum radius and 1mm depth. At last the tool is at Thus the work ends. Work path Residue removing P. ActionTrim the edge or round the angle of Z-Y semi-circle. Firstly the tool works at 45 till the tool is at the maximum radius 0. This depth VD stands for the tool in clockwise direction working at 65after the tool cuts -1mm on X axis till the tool is at the maximum radius. Mode B : Refer you to the description of Residue Removing. This directive will be performed by relative increment.

At the beginning the tool works directly to reach VD : -2mm on Z axis. Then, the tool moves at constant speed, and begins to sway along the circumference till the tool is at the maximum radius HR0. After that, the work is ended.

At the beginning the tool will work on Z axis to VD : -2mm. Then, the tool moves at constant speed, and begins to sway till the tool is at the maximum radius HR0. The smallest input is 0. At the beginning the tool, from the start point as the center, gradually sways outward to the work depthVD-2mm and the radius HR 0. Then, the work is ended.

At the beginning the tool, from the start point as the center, gradually sways outward till the tool is at the work depthVD -2mm and the radius HR HR0. Display only on S. TF stands for the OFF time for the directive. The unit is Minute. Then, Filter metal powder is switched on for 5 minutes. After 60 minutes, the motor is switched on again.

Such steps repeat till the program ends. The users may adjust the time for TF and TN depending on the work status.

Display only for S. Enter a number according to the cue in the prompt column. Then, find the origin. During the motion, if the workpiece program is error, or the operator is neglectful which results in tool contact, the system will automatically detect it, and stop the motion, and send ERROR message. When the program is edited, the work path shouldnt have a short Note circuit.

Work example:. Z axis works. Find the datum plane for the workpiece. Find edge for Z axis. N POS. When the program is edited, the work path shouldnt have a short circuit. Work example: After rough machining, make fine machining in the interior of the hole. Work example: If the mold plate is X20 Y30 Z20 , move the tool to the center of the mold plate approximate value.

Set 0 for XYZ coordinate. Work example: If the current coordinate value is XYZ SETUP in the program directive row, the work coordinate will perform the action.

Please enter a number according to the cue in the prompt column. For setting P value, refer you to Saving Coordinate in Chapter 9. Manual Mode. Work example: If the current machine coordinate is - mx Move the die block machine Head to the position mx Record this coordinate as P2. It is for users reading convenience, and wont affect the machine action.

T parameter stands for the number of hold second. L loop stands for the number of execution made by the subprogram. F subprogram stands for the file name of the subprogram. The file name of the subprogram consists of only figures. No stands for the tool number.

Reset tool: 0 When the program performs B code, the count-down function is activated at the same time. When the time is over, the program will perform next direction. When P code is performed, the count-down function will be activated when the machining depth reaches the set depth.

B code and P code cannot be performed at the same time. If they are performed at the same time, only P code is valid. The turning angle is at the absolute position. If sign is entered, the axis turns counterclockwise.

Directive of C axis 1. U stands for a rotating angle of cutting. For performing this directive, it is necessary to add CW constant rotation or CCW constant rotation so that C axis can rotate. It has nothing to do with C axis rotating speed. If C axis works with X axis or Y axis, the system will make a side spiral positioning rack position.

If C axis and Z axis work together, the system will make a spiral positioning. You can select only one parameter from the 3 parameters X, Y and Z. If you enter 2 or more parameters, only the 1st parameter is valid. IZ is the depth unit of Z axis, a negative absolute value. This function with a correct pitch diameter can be used for machining a spiral object or threads.

Please see the following figures. During the work, if you pressF3manual, the tool will return to the start point along the original path, but do not press F3manual again before the 1st manual action is completed. If you use NG spiral positioning, the motion direction must be reverse to the direction of spiral cutting.

The error input, if any, will result in damage to the workpiece and the electrode. Spiral positioning is in reverse direction. During the process of cutting, C axis will make clockwise constant rotation according to the set speed. Thus, the workpiece can be discharged more even. If the function of C axis rotation speed is added, the rotation is subject to the set speed.

If the function of C axis rotation speed is not added, the rotation speed is subject to the default value of rpm. After this function is performed, the position of C axis will become a random number. It is necessary to find the origin of C axis. During the cutting process, C axis will make counterclockwise constant rotation according to the set speed. Thus, the workpiece can be machined and discharged more even. If the function of C axis rotation speed is added, the rotation will be subject to the set speed.

If the function of C axis rotation is not added, the rotation will be subject to the default value of rpm. It is necessary to find the origin of C axis again. Directive format:. IX stands for a selection of axial direction. If NG spiral positioning is used, the motion should be reverse to the spiral cutting.

Error input, if any, will result in damage to the workpiece and the electrode. Dw stands for the diameter of the pitch circle of the gear. IY stands for a selection of axial direction. This function with C axis CW rotation will produce 4 situations as following figure shown.

If NG spiral positioning is used, the motion should be in reverse direction to the spiral cutting. Dw stands for the diameter of pitch circle of the gear. After entering the functions, the upper corner of the system screen will display file, and save a new file.

The following figure shows the screens of download a file and save a new file. If there is no such file name in the file column, it means that a new file is loaded or saved. File pathShow the current file path of the file name. If there is no such a file, a new file will be created at that path.

FileShow the existed files. PressDelto delete the selected file. At this moment the system will show a visual window on the screen to ask you if you want to delete this file as shown below. PressCto copy the selected file.

At this moment the system will show a visual window on the screen to ask you to input a new file name as shown below MenuShow the current menu. DiskShow the current disk. If this function is activated, the system will show WORK on the screen. This function is used to start the work program. At this moment RUN Directive will appear on the upper right hand corner of the screen. The tool path area will show a corresponding icon according to the block of the currently performed program. At this moment HOLD will appear on the upper right hand corner of the screen.

PressY to reset the work. PressNto proceed the work. Please see the following figure. Press Yto reset the work. When this function is activated, the system will switch off the discharge power.

The tool at discharge point will return to the start coordinate point of the current program block according to the tool retraction method of the program block. Under manual mode, the wire control box can be used to move the tool. PressN to return to the discharge status.

At this moment the tool will move in a straight line to the manual referential point at a fast speed. Then, the tool will retract to the discharge point along the tool retraction path. For example: The current coordinate unit is mm. The start coordinate of the work program block is0,0,0When the manual function is activated, the tool will return to 0,0,0 along the tool retraction path.

Use the wire control box to move the tool to 3,3,5. The tool will move in straight line to the manual referential point 0,0,0 , and then return to the discharge point along the tool retraction path. After that the system continues to run the workpiece program.

Short circuit is not tested on tool retraction to avoid 2 discharge, so the system cannot make a judgment according to the program path or the tool shape. Under this situation, there is no collision protection for the tool and the workpiece. However, there is a short circuit test when the tool is moved by wire control box. Under discharge status and before returning to the tool retraction point, the operator must note if a short circuit collision danger exists when the tool at current position moves in straight line to the manual referential point.

Avoid short circuit which may terminate the running of the workpiece program. Unequal energy discharge is used on special work or final work. According to our experience, unequal energy discharge is used for small current work less than 10A. For rough work under unequal energy discharge mode, the consuming ratio of the electrode will be higher than it under equal energy discharge. Then, OFF Time appears.

The cycle of each T repeats these steps. Then, OFF time appears. Just pressF8 to save the current work condition to the code set. F10ResetJust pressF10to return to the previous page. After entering this mode, the screen will be as follows:. The display value is the actual value. PgUp,PgDn: Switch the screen to previous page or next page.

Home,End: The curser jumps to the first line of the first page and the first line of the last page. ESC: Upgrade and save the data. Then, leave the code mode. The meaning of each work parameter: Pulse width ON.

T : The unit of the time of discharge pulse is microsecond S. The current varies depending on the specifications of the electric control box. WORK: It is the discharge time of periodical residue removal jump. The unit is second. The unit of jump distance is mm. V : It is the sensitivity of the servo.

Its value is in form of percentage. The bigger the value, the stronger the servo sensitivity. POLAR: 1. T It is unnecessary to make adjustment. HV2: There are 2 stages of arc high voltage.

The unit is microsecond S. The time of current ON will be delayed so that the servo has a tool retraction action. It is to protect the electrode and the workpiece from being damaged. AI This chapter introduces the artificial intelligence mode. This mode automatically helps the users to select the most suitable parameter group codes for the work depending on the electrode, the workpiece, machining depth and rough degree and other conditions.

These group codes are from rough machining to final work. It saves the setting time of work parameter for the users. After entering the artificial intelligence mode, the screen is shown below -. They are copper iron, copper tungsten steel, copper aluminum, copper copper, graphite copper, graphite iron, graphite tungsten steel, graphite aluminum, etc 2.

It includes 10 grades. The bigger the figure, the rougher the surface. If the start position is 0, the absolute coordinate will automatically edit the program. MODE: Press this button to switch the filed. ENTER: input button to confirm the setting 7. ESC: Leave the artificial intelligence mode.

The rest subfunctions can be operated and changed. Enter the system, the screen is shown below -. When this value is too big, the system will send a warning message. The users can view the parameter setting, but only the authorized users with passwords can change the parameters. Operation: PressF1parameter to enter the subfunction.

Before entering, it is necessary to input a password as shown below Save before exit. Before the password is entered, the alarm column will show No Change. Then, the system enters the parameter screen as following figure shown. Operation: PressF2Time Setting to enter the subfunction as following screen shown. ESC :Press this button to leave the parameter setting and save the file. This function is for servicemens reference only. The users just need to know the existence of this function.

Operation: PressF4message to enter the subfunction as following screen shown. Emergency Stop Button is 1. Please pull up E. Switch on the temperature control switch of the PC board. Hi voltage invalid! The work is completed Press any button to restart the motor Sleep ON!

Press any button to clear this message. If it is unable to clear, please restart the machine. Press any button to perform the program again. If the liquid level detection button is OFF, the system can continue to perform the program. The user may change depending on his usual work habit for work convenience.

ESC : Press this button to leave the parameter setting and save the file. The default value isEDM The user may save the work. Then enter a file name for this parameter item. Chinese Chinese charactersEnglish English words. Relative work coordinate Absolute referential coordinate. In AI system, select the 1st stage of discharge current 12A.

Note: This setting is valid only under normal shutting down. Under abnormal shutting down, the coordinate saved last time will appear if the machine is restarted. CNC silicon powder stir system: work condition under manual mode mobile phone discharge parameter Group code.

Its structure is as shown. Press it again to switch off the function. Press it again to switch off this function. When this function is switched on, the work indicating lamp on the oil tank will light as following figure shown. You have following options. Switch off: Enter the system screen. Set a polarity for mirror work: The bigger the setting value, the bigger the current. Therefore, the setting value should vary depending on the area of the electrode.

In this example, the setting value is 8. After test, this value can obtain the optimum effect. When the depth is deeper than 30mm, the residue removing height P. It will affect all the work time. During the work, try to allow the liquid surface over the surface of the workpiece surface, then pour oil in counterclockwise direction so that the work liquid can produce whirlpool to obtain a better discharge effect. Adjust the parameters for mirror fine machining mirror function as below 1 Adjust the parameters in work screen as follows -.

Adjust the parameter of mirror fine machining in Polarity field. Pressorto adjust the parameter value. Mirror machining without dust stir 1Hints during mirror machining 1 Use 2 electrodes. Adjust the parameter of mirror machining in the polarity field. Es un proceso que industrialmente se denomina de superacabado. Como ejemplo se puede observar el mecanizado del cubo presentado en la Figura 10 en el que cada cara corresponde al perfil de una letra. En la Figura 10 se ilustran algunos ejemplos de las aplicaciones descritas.

En la imagen de la derecha se puede observar:. Un perfil prototipo de aluminio. En este sentido hay que citar:. Abajo: agujero de salida de fluido en un eyector de los utilizados en conte con fluido abrasivo. En la Figura 11 se presentan dos ejemplos. En la parte inferior se representa un eyector de mm en el que se ha realizado el agujero de salida de fluido con un electrodo de cobre de 0,8 mm en 6 minutos. Rierge, S.

Eydo Technology, S.