The workpiece shown in Figure 1 is a trap valve body. We designed a universal drill fixture as shown in Figure 2 when machining the common flange connection hole, and solved the six-size valve body flange with diameters from Dg15 to Dg50. Processing problem of the connection hole. According to the valve body diameter specification, we have designed six special drill templates 4, positioning ring 2 and positioning shaft 8. The replacement of these special parts allows for the universal use of drill fixtures.
Rotary flange connection hole universal drilling fixture