During the threading process, it is often worn by the fille knife. If the trapezoidal thread must also be treated on both sides.
The principle of treatment of wires in the CNC towers
There is a big difference between the sons of the CNC cart and the ordinary tower cart. Thread processing process This transmission chain cannot be disconnected, otherwise it will be completed.
The CNC turbine sends a pulse signal to the CNC system via the coder installed on the main axis. The thread. (Zero signal), and the driving movement is carried out. , the car screw is always on the same spiral line, so there will be no fixing phenomenon.
Stage of the threaded knife on the knife
1) The first car is installed with a knife
During the installation of a fuel knife for the first time, the tip of the knife in wire and the part are not the same as the high phenomenon. The central center must be adjusted. When the knife is installed, the tip of the knife is subject, which is easy to produce a threaded dental angle error and the shape of the tooth is twisted. The threaded knife spans too long and a shock knife will be generated during treatment, affecting the roughness of the surface of the screw.
2) coarse car knife
In the process of processing high precision wires and trapezoidal threads, two coarse stools with threaded knife must be separated.
3) Repair of parts
Due to the secondary loading part, the repair of the part to the knife changed the spiral line and the unique signal of the encoder, and the fascination will be generated when the treatment is repaired again.
How to solve the problem
1) The tip of the threaded knife must be maintained as high as the room rotation center. If the knife is used to use the CNC, due to the high precision of the knife post, it is generally necessary to put the knife lever on the side of the knife support.
2) The roller treatment knife is defined as a basic point for adjusting the knife.
3) In the treatment of the wire, if a knife is worn or collapsed, the knife is necessary to be re-brade.
4) If you repair the unpacking part, determine the starting point of the treatment point to repair and treat. Thread parameters), value Z is the distance value of the distance from the whole wire thread guide from the starting point of the net.
The goal is to record the signal position, remove the test stick and the threaded part which must be cut or repaired on the clip. The car knife on the line carved by car. Groove, note the Z corresponding to the absolute coordinates and finally calculate the starting point of the Z car knife, according to the results of the calculation according to the results of the calculation the starting point of the mod modification program to the coordinates. The formula is z ′ = z + (n + 2) t, n is the number of routing grooves of the groove of the wire where the current tool is located at the starting point of the wire, t is the wire distance.
Example: Leave the current Z value is -10, n is 2, t is 3, then
Z ′ = Z + （N + 2） T = 2
The new starting point Z is 2.
Turning the wire, installing a knife and knife is very important, in particular the secondary return (repair). Position and position of the pin during treatment.
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