Wire cutting taper problem, how to cut the taper and program wire cutting?

When you set the taper and cut it, if you want to straighten the position, then you have to cut a knife without a taper, so that the straight position is on it.

It's two knives, get it?

The datum is 70 + the thickness of the workpiece is 30 and the cutter edge is 8 centimeters, which is equal to how much is entered.

Generally 30 40

The high workpiece should be left with a knife edge of 8 10 centimeters.

A cone of 1 degree will do.

The bigger the cone, the better.

However, the cone is too large to top the spout.

According to the normal machining method, you need to put the TD (the distance from the table to the limit of the Z-axis).TL (table to lower head).TU (table to upper guide head).

TP (table to main process surface).tn (table to side surface, generally zero) these values can be calculated to process the slope, provided that the oblique ** will be used. The first three are lost in the machine, and the last two are lost in the program.

The datum plane seems to be the distance from the center of the lower guide wheel to the worktable, and the thickness of the workpiece is the thickness of the workpiece minus the uplift. It's been a long time since I've turned on that machine, I can't remember exactly, you can try it and see if it's right.

First of all, ask whether your knife edge is left in the big head or the small head, the big head +5, the small head -5, of course, the thickness of the workpiece is still 15, you try it, if not, ask me again

Taper and upper and lower heterosexual processing.

There are two processing methods for taper cutting: equal cone processing and upper and lower shaped surface processing.

1. Equal cone cutting.

Equal cone processing refers to the workpiece with the same shape and different dimensions up and down, and the inclination angle of the molybdenum wire remains unchanged during the processing process. When cutting, it is necessary to carry out height, angle, a surface figure, and define self-oblique operations;

The following parameters (unit: um) are required for cone machining

h1 = vertical distance between the center of the upper and lower guide wheels.

h2 = thickness of the workpiece.

h3 = the vertical distance from the center of the lower guide wheel to the bottom surface of the workpiece.

h4 = guide wheel radius =

h5 = 0 The minimum half-warp of the arc when the same arc is processed (enter 0).

Height input. 1) Define the reference surface in the height program.

gx (showing a positive number) indicates that the above workpiece faces are programming surfaces.

GY (shows a negative number) indicates that the following workpiece faces are programmable faces.

2) Height input.

Standby Upper Gear Set Altitude GX GY H1 Height H2 Height H3 Height H4 Height Standby.

2.Angular input.

1) Symbol definition (defined in gx and gy) in angular programs

When the processing pattern is small at the top and large at the bottom, it is [positive cone] processing;

When the processing pattern is large and small, it is [inverted cone] processing.

In the case of reverse secant plus positive cone, and when forward secant plus inverted cone, a > 0 is used. When a > 0 is denoted by gx.

In the case of reverse cleavage plus inverted cone, and when ceant plus positive cone, a < 0 is used. When a < 0 is denoted by gy.

2) Angle input: a = angle (in degrees, in decimal system).

1) When the angle has a decimal place: the upper gear sets the angle gx gy a (integer) angle a (decimal) angle on standby.

2) When the angle is an integer: the upper gear sets the angle gx gy a (integer) angle angle on standby.

4.Define self-slash: Add an [l] to the end of the first segment of the program to make it a leader.

The fifth parameter, that is, the minimum radius of the arc of the same garden arc processing, can only be entered in the workpiece that needs to be controlled by the equal garden arc in taper processing, and the number can not be entered in other cases, and only a "0" can be entered.

The so-called equal arc processing method refers to the process of making equal cone processing, there is a section of the upper and lower workpiece surfaces of the arc is of equal arc length, which is a simple variable cone processing method, which is generally only used in small transition arcs.

The parameter value of h5 controls all small garden arcs with a radius less than or equal to this value to be automatically processed as equal garden arcs.

The setting method of wire cutting taper parameters is as follows:

1. Enter the processing page and press F3 to enter the parameter page, select the taper and press Enter. Go to the taper settings page and select the desired taper.

2. Input parameters, measure the thickness of the workpiece, the height of the foundation surface (the distance from the center of the lower guide wheel to the bottom surface of the workpiece), the distance between the wire frame (the distance between the center of the upper guide wheel and the center of the lower guide wheel), the radius of the guide wheel, and the taper mode (there is a carriage mode and a swing mode, which can be selected according to the model).

The cutting taper requires the principle of four basic parameters to be entered:

1. Wire cutting at the cutting taper. We definitely need to know the workpiece we want to cut first, the angle given by the drawing, that is, the taper angle we want.

2. There is also the distance between the upper and lower guide wheels. It is worth noting that this data does not actually refer to the distance between the upper and lower guide wheels, but refers to the height of the triangle with the bottom of the electrode wire swinging into the hypotenuse and the lower guide wheel, so when measuring, the molybdenum wire must be corrected vertically, otherwise there will be a deviation in the value, and if the eye mask is installed, this distance will also become the distance between the upper and lower eye masks.

3. The height of the workpiece. When the taper is regenerated, this data is used to allow the system to calculate the size of the upper surface after the taper is generated.

4. The distance from the lower guide wheel to the plane, this data is calculated to calculate the height of the triangle with the hypotenuse of the electrode wire and the bottom of the workpiece. <>

The moving metal wire is used as the tool electrode, and a pulse current is passed between the wire and the workpiece, and the workpiece is cut and processed by the corrosive effect of pulse discharge.

According to the change law of taper processing size and taper, the zsd value can be used to correct the taper, and the zid value can be used to correct the program surface size. Before cutting the taper part, a punch (small at the top and large at the bottom) is cut and the actual taper value is measured with the program surface size. According to this, the ZSD and ZID parameters of the machine tool are corrected.

Note: The calculation process for the correction parameters is divided into 2 stepsYou should choose to correct the ZSD value first, and then correct the ZID value. When correcting the ZID value, it will affect the change of the height parameter and thus affect the taper, and the correction value must be attached to the ZSD so that the height parameter does not change so that the taper will not change.

The cutting method of wire cutting taper needs to be selected according to the specific working situation and needs. When carrying out the wire cutting taper, it is necessary to select the appropriate wire cutting parameters according to the requirements of the cone flutter and the material characteristics of the hole sensitive, and carry out reasonable programming and adjustment.

For the cutting method of wire cutting taper, it can be introduced and analyzed in detail from the following aspects. First of all, the cutting method of the wire cutting taper is related to the material properties of the workpiece. For materials with higher hardness, higher wire cutting power and better cooling system are required to ensure cutting quality and processing efficiency.

In addition, the plating or coating on the surface of the material needs to be treated accordingly to avoid damage to the cutting electrode and reduce the processing quality.

Secondly, the cutting method of wire cutting taper also needs to consider the size and shape of the taper. When selecting wire EDM cutting parameters, it is necessary to consider the height and inclination angle of the processing taper to ensure the cutting quality and processing efficiency. When writing the machining program, it is necessary to pay special attention to factors such as the direction of cutting and cutting speed to avoid deviations or poor local processing quality.

In addition, the cutting method of wire cutting taper also needs to consider the selection and preparation of cutting electrodes. When selecting the cutting electrode, it is necessary to select according to the shape and requirements of the workpiece, and prepare it according to the specific processing task to ensure the cutting accuracy and processing efficiency. In the preparation process of the cutting electrode, special attention needs to be paid to the surface quality and shape accuracy of the cutting electrode to avoid errors or quality problems during the processing process.

In short, the cutting method of wire cutting taper needs to be selected and written according to the specific processing tasks and requirements, and at the same time, it is necessary to pay attention to factors such as material characteristics, taper size and shape, so as to ensure cutting quality and processing efficiency. <>