Hole-turning device for part with two parallel holes

Abstract

The invention relates to a hole-turning device for a part with two parallel holes. A jig plate is arranged on a flange plate of a lathe through an inner hole of the jig plate and fixed by an inner hexagon screw; a part mandrel is arranged on the jig plate; a counterweight mandrel is arranged in a corresponding hole of the jig plate, the axial lines of the part mandrel and the counterweight mandrel are in symmetrical positions of the jig plate rotation center; a counterweight member is arranged on the counterweight mandrel; a bracket is fixed on the counterweight member; a stud is arranged in a screw hole of the bracket and locked by using a nut; the part is arranged on the part mandrel through the inner holes of front and rear ends of the group of machined holes and by using a locating sleeve, a large retaining pad and a countersunk head screw; and the outer circles of middle sections of the other group of holes of the part are pressed on the bracket by using the stud, another nut anda pressure plate. By adopting the hole-turning device for the part with two parallel holes, one of two groups of mutually parallel holes in the part can be easily and quickly machined; moreover, the jig has the advantages of simple structure and convenience for manufacturing.

Description

technical field [0001] The invention relates to a fixture for mechanical parts, in particular to a device for turning two parallel holes. Background technique [0002] There are two groups of parallel holes on the parts of some mechanical products. For example, there are two groups of slow roller shafts and bridge shafts on the slow roller moving shell seat of the LM24-2C rice huller, which is widely used in rice processing equipment. hole. The processing of these two groups of holes is generally carried out on a lathe, especially the group of holes for installing the bridge shaft. The small holes at both ends and the large holes in the middle must be completed on a lathe, and the universal fixture of the lathe cannot be used. Contents of the invention [0003] The invention provides a device for turning a part with two parallel holes, which can process a group of holes with two groups of parallel holes on the part. [0004] The technical solution adopted by the present ...

AI Technical Summary

Problems solved by technology

The processing of these two groups of holes is generally carried out on a lathe, especially the group of holes where the bridge shaft is installed. There are small holes at both ends and large holes in the middle, which must be completed on a lathe, and the universal fixture of the lathe cannot be used.

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