2 results about "Parts tooth" patented technology

The application discloses a large internal ratchet wheel machining method, which comprises the following steps: S1, rotating a machine tool B shaft; S2, tooling a ball cutter (4) installed on the machine tool B shaft accessory with any two points on a large tooth surface of a tooling slot and any one point on a small tooth surface respectively to obtain coordinate values of each tooling point in a cutter tip coordinate system; S3, according to the intersection of a tooth root virtual circle under the cutter tip coordinate system and the connecting line of the two tooling points on the large tooth surface, the intersection point constitutes the coordinate values of a tooth root vertex in the cutter tip coordinate system, and the coordinate values of the tooth root vertex in the cutter tip coordinate system and the offset of the cutter tip coordinate system relative to a part coordinate system are obtained according to a trigonometric function relationship; and S4, the offset is used for compensating the cutter tip position deviation generated by the rotation of the machine tool B shaft. The technical effect of the application is that qualified large internal ratchet wheels are machined by compensating the cutter tip position deviation and the part tooth slot phase deviation, qualified large internal ratchet wheels are machined on a machine tool by using a common ball cutter, and production cost is saved.

The utility model discloses an embedded part tooth profile bush processing device, including split type's upper die holder (1) and lower die holder (2), and the middle part detachable connection of lower die holder (2) has first fixed mould core (3) and second fixed mould core (4), and first fixed mould core (3) and second fixed mould core (4) between present top and bottom distribution and mutually adhere to, and the one side of first fixed mould core (3) or second fixed mould core (4) forms first air groove (5), and the outside of first air groove (5) is equipped with the air room (6) of being located first fixed mould core (3) or second fixed mould core (4) installation gap place, and the outside of air room (6) is equipped with the second air groove (7) of being located first fixed mould core (3) one side side wall, and first air groove (5), air room (6) and second air groove (7) between sequentially communicate. The utility model can realize the timely discharge to the air in forming cavity.