1. 1 four-jaw clamping square, aligning according to the shape, roughing and finishing the φ25H8 inner hole, each excircle, sealing groove (excircle 3.4 wide ring groove) and end face to the finished product;
1.2 turn, turn with a soft claw, turn φ40 cylindrical flat end face, turn φ3 1 inner hole and end face to the finished product;
Equipment: CD6 140
2. Milling: positioning the inner hole, installing the limiting clip, and press milling the square finished product;
3. Underline:
Draw the inner hole R 1.5 groove, the processing line of each hole, the detection line and the bottom hole of each thread;
4. Milling:
Milling the finished product of R 1.5 groove;
5. Drilling:
Drilling holes and threaded bottom holes, and tapping finished products;
6. Fixture: deburring and cleaning.
7. Blue therapy.
Store it.