1 workpiece surface line

First, draw a horizontal line. Adjust the height of the line to the center of the dividing head high l25mm, in the outer circle of the workpiece.

Horizontal position draw horizontal line, then put the workpiece around L80 degrees, according to the same height in the both sides of repeat mark, if

The two time line does not coincide, then the line position is adjusted in the middle of the two lines, and the line is crossed again, and the line is crossed again. The line of the coincidence is the central line of the horizontal position.

Second, row key width line. According to the line of the level of the line position, the height of the cursor to adjust the height or lower the bond wide size of a

Half (this example is 3.7mm). According to the above method, the key width line is drawn on both sides of the horizontal position of the work piece.

2 adjust the position of the key side milling. After the line, turn the work piece 90. The key to wide, draw a line above the workpiece, as a tool for horizontal. Adjust the working table, so that the three side edge milling cutter side cutting plane left the key 1 key wide line 0.3 to 0.5mm, on the horizontal dial with chalk mark and lock the working table lateral.

According to the spline milling length, the milling cutter and the cutting distance, the automatic stop limit stop of the milling end point is adjusted.

When the key side is adjusted to the milling position, the circular cutting edge of the milling cutter is first to rub on the surface of the workpiece, and the working table is vertical to the rising H:

(0.4mm is the key side to deepen the amount)

3 test cut and symmetry detection. Test milling key side l and side 2.

Test milling key side 2, the working table lateral movement distance S:

S=L+B+2 (0.5 ~ 0.3) =16.2mm

In the form of 0.3 ~ 0.5mm, the side of the side of the side of the side of the side of the key is retained in the test milling. )

With the symmetry key pre lever indicator.

4 milling key side 1. According to the pre results, if the measured key side L 2 less than the bond side milling to 0.15mm, the workpiece by measuring position to the top level of pre milling position, and then adjust the table horizontal, the key to 1 side milling 0.15mm. Again measuring key width size, according to the process pattern of key width size and measured size difference between the half of the adjustment of the table horizontal, according to the fractional division, in turn milling key side l (6 surface).

5 milling key side 2. After 1 milling of the key side, adjust the working table to ensure that the key width dimension is up to (7.4 + 0.045) mm, according to the equal parts requirement, in turn milling key side 2 (6 sides).

6 milling groove bottom circular arc path.

(a) milling key side l

(b) milling key side 2

(c) milling groove bottom circular arc path

Figure 9 the first key groove bottom side milling spline steps

The (1) step, forming single pole installation. Single out the size as small as possible, in order to improve the cutting tool rigidity. Because of forming milling cutter blade circular pole used, therefore should pay attention to the installation precision of the single pole. Methods the installation accuracy of visual inspection of pole figure 10 (a) shows, by means of the parallel block as long as possible, if installed correctly, the pads shall be parallel to the axis with the knife.

The (2) step, horizontal knife. Adjust the working platform of visual makes two sharp angle and pole arc workpiece key blade top contact at the same time, as shown in Figure 10 (b), after the lock table horizontal knife.

(a) the installation accuracy of visual inspection (b) single pole horizontal visual setting position

Milling groove bottom single installation and setting position

The first (3) step is to adjust the workpiece rotation, and the workpiece is transferred from the position of the milling key side to the bottom position of the milling groove. Corner for.

The (4) step, try to cut the pre trail size. Table vertical knife at the bottom of the groove, try cutting out the circular arc surface, the workpiece rotates 180 DEG. According to the vertical position of the same milling, try cutting out the corresponding arc surface, using micrometer size pre trail.

The first (5) step, according to the measured size and the difference between the size of the working process to adjust the working table. When the size of the test cutting path conforming to the pattern, according to the equal requirements, in turn milling groove bottom circular arc surface, the smaller size reached (28.4 + 0.045) mm.