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The installation of CNC gantry milling must be carried out after the concrete is completely dry

2021-03-22 10:03:45
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Installation foundation: The working accuracy of CNC gantry milling is closely related to the structural rigidity of the installation foundation. The foundation construction is poor and deformed after being loaded, which will seriously damage the accuracy of the machine tool. The preparation of the installation foundation must take into account the soil conditions, temperature changes, and groundwater. As a result, the construction and installation of the foundation should be carried out according to the foundation plan. Use concrete with a number of 100 to 150, and leave the holes for installing foundation screws. The depth of excavation is determined by the bearing capacity of the soil, and the minimum depth is specified in the foundation plan. The surface of the foundation should be flat, and the installation of CNC gantry milling must be carried out after the concrete is completely dry.


1. The installation and adjustment of the shim and the foundation nails are carried out when the bed and the column are installed respectively. The CNC gantry milling machine manufacturer should first place the adjustment shim on the appropriate position on the surface of the foundation, so that the height of the shim should be consistent, and Each shim has a height adjustment margin. Note that the shim should not be placed at the position of the foundation screws specified by the foundation, but at a certain place between the foundation screws. The CNC gantry milling should be placed in the foundation hole first, after the bed and the column are placed on the foundation Then pass it through the corresponding foundation screw hole and screw on the nut.

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2. Install the bed, put the bed on the horn, the CNC gantry milling machine manufacturer checks that the contact is good, and make rough adjustments. Use a test stick, a flat ruler, and a level to roughly adjust the bed to make it level. It is not allowed in the middle of the bed. More than 0.04/1000 (longitudinal and horizontal), after the rough adjustment is completed, concrete with number 200 or higher can be poured into the square hole of the foundation.


The surface must be smoothed. After it is dry and solid, place the adjustment shim according to the position shown in the foundation plan, and then you can begin to fine-tune the bed. The adjustment of the CNC gantry milling is generally carried out in the following order: Take the middle installation level as the reference, and start from the middle. Adjust the two guide rails in the vertical plane and the twist of the two guide rails at the same time, and then adjust the "v"-shaped guide rail in the horizontal plane. Because the accuracy of the three items affect each other, it usually takes several iterations to meet the requirements. In addition to fine-tuning the bed, you can first adjust the unevenness of any one of the guide rails in the vertical plane, and then adjust the twist of the two guide rails based on the guide rail, and then review the unevenness of the other guide rail in the vertical plane. Then adjust the non-straightness of the "V"-shaped guide rail in the horizontal plane. When the required conditions are met, both the nut of the adjustment pad and the nut of the foundation nail must be tightened.


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