The processing valve body of our factory is shown in Figure 1. The valve body needs to be machined with φ14mm two inclined holes at both ends. The angles of the inclined holes at both ends are different, one end is 30° and the other end is 15°. In the past, in the vertical milling, the rotary vertical milling head spindle machining was performed according to the requirement of the inclination of the part, so that the operation was troublesome and the machining efficiency was low. To this end, we designed the drill jig shown in Figure 2.
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