[Noble Platinum] CNC Lathe Knife Operation Prone Problems

- Jun 11, 2018 -

Noble Platinum Chi-made: CNC lathe before processing, to be on the knife operation, to ensure the accuracy and accuracy of product processing. In the timing of production, the CNC lathe on the knife operation mainly cutting knife and knife outside the knife on the knife two methods, the following to FANUC economic CNC lathe as an example to illustrate its operation.

1, cut the knife on the test

Trial cutting knife is mainly used in the establishment of processing coordinate system. After the workpiece is installed on the lathe, in order to process the required workpiece, the origin of the program should be set as the origin of machining and the machining coordinate system should be established to determine the relative position of the tool and the workpiece so that the tool moves according to the programmed path and the final machining The required parts.

Test the knife on the steps are:

(1) Select the manual operation mode of the machine;

(2) start the spindle, test the workpiece cylindrical, keep the X direction does not move;

(3) stop spindle, measuring the workpiece diameter value;

(4) Select MDI operation mode of the machine;

(5) Press the “offsetsitting” button;

(6) Press the “Coordinate System” soft key at the bottom of the screen;

(7) Move the cursor to “G54”;

(8) Enter X and the measured diameter;

(9) Press the “Measure” softkey at the bottom of the screen;

(10) Start the spindle, try cutting the workpiece end face, keep the Z direction does not move;

(11) Stop the spindle and repeat steps (4) – (9) above, change the X and the measured value in step (8) to Zo.

2, outside the knife tool on the knife

Outside the knife on the knife on the knife will generally be fixed on the lathe micro-tool on the lathe, used to establish the compensation value between the tools. However, due to the different tool sizes, the coordinates of the tool point in the machine will be different. If you do not set a compensation value between tools, it is impossible to process the same program the same size, use the same tool to run the same program to achieve the same size, you must establish the compensation between the tools.

Outside the knife on the tool knife on the steps are:

(1) First move the reference knife so that its knife point is aligned with the crosshairs of the microscope.

(2) Clear the relative position of the reference knife at this point. The specific operation is to select the relative position display. Press X and press the “Origin” soft key at the bottom of the screen.

(3) The tool offset value is cleared. The specific operation is to press “offset sitting” button, press “correction” soft key at the bottom of the screen, select “shape”, input Xo on the tool offset number corresponding to the basic tool , Zo;

(4) Select the manual operation mode of the machine tool, remove the tool holder and change the tool;

(5) Align the knife point with the reticle center of the microscope;

(6) Select MDI operation mode of the machine;

(7) Set the tool offset value by pressing “offset sitting” button, press the “CORRECTION” soft key at the bottom of the screen, select “shape” and input X, Z on the corresponding tool offset number;

(8) Remove the tool holder, execute the automatic tool change command.


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