Reasons for Knife Crash in CNC Machining

As a high-precision machine tool, the CNC machine tool of the machining center is very necessary for collision avoidance. It requires the operator to develop the habit of being careful prudent, operate the machine tool in the correct way, reduce the occurrence of machine tool collisions. With the development of technology, advanced technologies such as tool damage detection, anti-collision detection of machine tools, adaptive processing of machine tools have been presented, which can better protect CNC machine tools.

1. Wrong programming

The process arrangement is wrong, the process undertaking relationship is considered carefully, the parameter setting is wrong.

(1) The coordinates are set to zero at the bottom, but in practice the top is zero

(2) After the program is written, the path of the program should be analyzed viewed;

(3) The safety height is too low, so that the tool cannot lift the workpiece completely;

2. The fault of the program order filler

(1) The clamping interval of the vise the projection interval of the workpiece is wrong;

(2) When the procedure list is changed, the criterion of replacing the old one with the old one should be adopted: destroy the old one.

(3) The procedure list should be as specific as possible;

(4) When the length of the protruding tool is unclear wrong, it will cause a collision;

3. When the length of the tool's extension is known the fault is wrong, it will cause a collision

(1) Tool measurement should use scientific methods, which can help you use more accurate instruments as much as possible;

(2) The length of the installed knife is 2-5mm longer than the practical depth.

4. The program transmission is wrong, the program number is called wrong the program is modified, but the old program is still used for processing. The on-site processor must check the specific data of the program before processing

5. Faulty knife selection

6. The blank exceeds expectations, the blank is too large does match the blank set by the program

7. The workpiece material itself has defects the hardness is too high

8. Clamping elements, block interference but considered in the program

9.Machine tool failure, sudden power failure, lightning caused knife strike, etc.