CNC Knowledge: Movement of the knife method of the machine tool treatment center

1. Z at the sword of the treatment center

There are generally the following three methods of Z Xiang knife at the treatment center:

1) knife method on the machine. The specific operating steps are as follows.

(1) Compare the length of the tool, find the longest knife as a reference knife, perform Z to the knife and use the appearance value (C) at present as a value Z of the coordinate system of the room, currently H03 = 0.

(2) In turn put knives T01 and T02 on the main axis and determine the value of A and B as a length compensation value by determining the value of A and B. (this method does not directly measure compensation for compensation The tool, but is different from the knife determination method in order.)

(3) Fill the compensation value with determined length (the longest knife length is reduced) in the set page. When G43 is adopted, length compensation is negative. This knife method method has great efficiency and precision and less investment, but the disadvantage of writing documents has a certain impact on production organizations.

2) The specific operating steps of the knife method on the machine two are as follows:

(1) In direction XY, find a positive parameter and enter the bias value of the XY element in the G54 and define the zero element.

(2) The T1 used for treatment is replaced by the main axis, and the block is used to find the positive Z direction.

(3) Put T2 on the main axis, find positive with the block, read Z2 and fill H2 after deducting the height of the block.

(4) Push in turn, search all the tools with blocks and fill the height of the ZI to fill the height of the block.

(5) During programming, use the following methods to compensate: T1; T2; G91 G30 Z0;

3) The pre-adjustment of the external tool of the knife + the knife on the machine is to use the pre-tonne instrument, then be in the time of the tool, then in the presence of the tool , then in time, then in the presence of the tool, then in the compensation value of each tool, then in the compensation value of the tool, then at the time of the tool, then in the compensation value of The tool, then in the compensation value of the tool, then in the compensation value of the tool, then at the same time, it is in the compensation value of each tool. This knife method is high and effective, which is practical for the organization of writing and production of craft documents, but has a significant investment.
2. Enter the data from the knife

(1) The coupling data obtained by the above operation, that is to say the original point of the programming coordinate system in value X, Y and Z in the machine coordinate system , and enter it in the G54 ～ G59 in a manual way. The operating steps are as follows:

① Press the key[Offset du menu].

② Press the cursor to go to the coordinate system of the part G54 ~ G59.

③ Press the key[x]To enter the coordinate value x.

④ Press the key[d’entrée].

⑤ Press the key[Y]And enter the value of the Y coordinates.

⑥ Press the key[d’entrée].

⑦ Press the key[Z]Enter the Coordinate Value Z.

⑧ Press the key[d’entrée].

(2) The tool’s compensation value generally uses the MDI method (manual data input) to enter the tool-tool before the program debug. The general operating steps are as follows:

① Press the key[Offset du menu].

② Press the compensation number cursor.

③ Enter the compensation value.

④ Press the key[d’entrée].

3. The test cutting method is simple for the knife and the cutting method, but it will leave traces on the room. His knife method is the same as mechanical research with borders.

4. The lever effect percentage of the blade lever percentage has a high precision of the knife, but this operating method is more embarrassing and the efficiency is low. The knife method is: use a magnetic surveillance seat to suck the lever effect percentage on the main axis of the machining center, so that the head is close to the hole wall (or the cylindrical surface) . One week, the volume of the pointer of the pointer is authorized to associate the knife. from X and Y in the mechanical coordinate system at this time to G54.

5. In direction Z, the knife considers that the knife craftsmanship, and the upper surface of the part is generally used as the original point of the z direction of the work system of the room. When the upper surface of the room is relatively rough, it cannot be used as a pair of conjunction bases in time. In the direction Z machine, there are several methods such as the steering pair of the knife, the knife knife and the knife knife.

6. The steering measuring instrument Z associating the Z directioner knife has a high precision of the knife. Part processing.

1) During the treatment center of the machining center, Z is mobilized at the sword processing center, which is similar to the problem of long compensation for the CNC milling knife.

(1) Instead of swords used for treatment;

(2) Sports tools at the front of the part, use Z to measure the distance between the measurement of the part and the tool, and record the reading of the number of the current machine (mechanical) Z coordinate system;

(3) Deduce the Z value at present (like 50.03 mm) at the time of steel (such as 50.03 mm), then fill the measured value in the OffsettetSet -> coordinate coordinate system-> G54;

(4) Run G90 G54G0 X0 Y0 Z100;