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Pay attention to these aspects when checking the accuracy of CNC gantry milling

2021-03-22 10:05:03
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1. Pay attention to the following aspects when using the assessed and checked machine bed accuracy:


2. CNC gantry milling machine manufacturers use measuring instruments that have been assessed up to the standard, such as: level, stainless steel wire, and flat ruler.


3. In the whole process of inspection and adjustment, when moving the detection rod and the flat ruler, make sure that the middle part of all the system software does not change to reduce the data error.


4. Pay attention to the proper placement of each cushion block, especially the bottom edge of the cushion block must be ground flat, and it is forbidden to have left and right skew, otherwise it will cause accuracy change and destruction.


5. Install the column and the connecting beam, you can install the column and the connecting beam after the rough adjustment of the bed, and install the measuring instruments of the column grid such as: level, stainless steel wire, flat ruler.


6. In the whole process of inspection and adjustment, when moving the detection rod and the flat ruler, make sure that the middle part of all the system software does not change to reduce the data error.


7. Pay attention to the proper placement of each cushion block, especially the bottom edge of the cushion block must be ground flat, and it is forbidden to have left and right skew, otherwise it will cause accuracy change and destruction.


8. Install the column and the connecting beam, and install the column and the connecting beam after the rough adjustment of the bed, and install the column

龙门铣床

The way of subgrade screws and pads is the same as the bed. CNC gantry milling machine manufacturers make the guide rails up, down, left, and right to be vertical with the geometrical figure plan formed by the guide rails, and the front guide rail surfaces of the two columns should be in the same plan view. Use a frame level to check that the plan view of the column guide rail should not exceed 0.05/1000, and then grouting the concrete together with the bed, and smoothing the surface, placing the adjustment horn, and then fine-tuning the column after it has solidified. After the bed is fine-tuned, set the column Tighten the connecting screw with the bed symmetrically, and use the coloring method to check whether the nut is symmetrical with the cone hole of the column bed. In addition, adjust the shim, install the connecting beam, and check the installation accuracy of the column, and check the unevenness of the column and the bed rail plan view. The method is as follows: check the rod ("v"-shaped rail) on the rail in the middle of the bed and Flat ruler (flat guide rail), the level on the top, and then use the frame level to check the middle of the upper and lower columns. The difference is calculated as the analytical geometric difference between the bed and the column level, and its value cannot exceed 0.03/1000 (the guide rail surface of the column). Only leaning forward), the front guide rail surfaces of the two columns should be coplanar, and the difference should not exceed 0.02/1000. Subsequently, a flat ruler is placed across the inspection rod and the flat ruler in the middle of the bed, and the level on it inspects the side rail surfaces of the two columns. The inspection method and the marked value are the same as the front rail surface of the column.

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