Detection method of positional accuracy between machine parts
The detection method of the verticality of the column guide to the surface of the worktable, such as vertical lathes, boring machines, gantry planers, radial drilling machines, etc., all have column guides. When assembling, it is necessary to ensure that the verticality of the column guides and the worktable is within the tolerance range. The inspection method of this type of column assembly is basically the same, and the frame level method is the most convenient for inspection. Measure the verticality of the column of the rocker drilling machine to the working table of the base, first rotate the rocker arm to the longitudinal plane of the machine tool, so that the rocker arm and the spindle box are located in the middle of the column and the rocker arm, respectively, and clamp the column, rocker arm and spindle box. , On the base work surface, place a ruler with a length of not less than 1m respectively, place the level on the ruler, and then press the level. ', 6' direction is close to the column. The maximum algebraic difference between the level on the ruler and the level on the column is the squareness error in both directions.
Test method for perpendicularity between parts
The verticality between machine parts is usually 90. Check with the square (or square) method of pulling the table. Measure the perpendicularity of the front surface of the planer to the moving direction of the ram, and fix a 900 square on the front surface to make 90. The inspection surface of the square ruler is parallel to the moving direction of the precision pillow, and the dial indicator is fixed on the ram, so that the probe touches the inspection surface of the 900-square ruler, and the ram is moved. The maximum change in the dial indicator reading is the verticality error. Measurements should be carried out as shown in Figure 3-17a and b respectively, and the errors in both directions should be within the specified range.
