Special fixture for processing inclined conical nozzle steam passage and method thereof

[0018] Specific implementation mode one: as Figure 4 As shown, the special fixture for processing the steam channel of the inclined cone-hole nozzle in this embodiment includes a fixture bending plate 1, a central shaft 2, an indexing plate 3, a positioning mandrel 6, three surrounding pressure plates 7 and a central pressure plate 8. The fixture bending plate 1 and the indexing plate 3 are sequentially set on the central shaft 2, and the central axis 2 is fixed on the fixture bending plate 1 by bolts. The fixture bending plate 1 has a stepped through hole 1-1, and the indexing plate 3 There are twenty indexing through holes 3-1 along the circumferential direction, the center of the stepped through hole 1-1 and the center of the indexing through hole 3-1 are on the same circle, and the positioning mandrel 6 is inserted in the On the index plate 3, the central pressing plate 8 is fixed on one end of the central shaft 2, and the surrounding pressing plates 7 are fixed on the fi...

[0019] Specific implementation mode two: as Figure 4 As shown, the special fixture described in this embodiment further includes support ribs 10 , and the support ribs 10 are arranged in the corners 11 outside the clamp bending plate 1 . With such a design, the support rib 10 can improve the stability of the fixture bent plate 1 . Other components and connections are the same as those in the first embodiment.

[0020] Specific implementation mode three: as Figure 4 As shown, the special fixture in this embodiment further includes a thrust bearing 12 , and the thrust bearing 12 is sleeved on the central shaft 2 . Such a design can reduce friction and make the index plate 3 rotate more briskly. Other compositions and connections are the same as those in Embodiment 1 or 2.