Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp

Abstract

The invention provides a technical method for constructing a reference surface of an assembled folio cartridge receiver and a special clamp. The special clamp comprises a base, pressing plates, adjustable supports, support screws and two sets of positioning components, wherein each positioning component comprises a front-end positioning block, a front-end hook-shaped pressing plate, a connection block, a rear-end positioning block and a rear-end hook-shaped pressing plate; and the two sets of positioning components are in centrosymmetry about a central axis of the base. The technical process comprises the following steps of: performing rough turning machining on an annular blank of the folio cartridge receiver, retaining flange edges, splitting the annular piece of the cartridge receiver,cutting off the flange edges on different sides, fixing two half cartridge receivers on the special clamp, and constructing the reference surface of the assembled folio cartridge receiver by adjusting the clamp. Compared with the conventional method, the technical method has the advantages that: the technical requirement of the whole machining flow is easy to realize; the whole machining flow canbe finished on the vertical lathe; the machining efficiency is high; and the reference surface of the folio cartridge receiver is machined during one-time clamping.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a process method and a special fixture for establishing a benchmark after the assembly of the opening case. Background technique [0002] Two types of wool are usually used for the open case, the overall ring and the semicircle (forged or cast). For the use of integral ring wool, no matter how accurate the rough machining is, the two halves of the casing will be deformed after cutting, and the joint surface (cut surface) must be processed to ensure the flatness of the joint surface; After the semicircular wool is processed to the necessary benchmarks, the joint surface must also be processed to ensure the flatness of the joint surface. Since the joint surface has been machined with a margin, and the machining amount of each half of the casing is inconsistent, when the joint surface is bored and the casing is assembled through the joint surface, there is no machinin...

AI Technical Summary

Problems solved by technology

[0003] The existing technological method for establishing the datum after the assembly of the open casing is: before the assembly, the two halves of the casing are respectively bored out of the reference plane on a horizontal boring machine, and the assembly tool is used for assembly to establish the processing after assembly. In this way, there will be errors caused by the secondary clamping to the benchmark of the parts, and its processing efficiency is low. It requires special tooling and a horizontal boring machine with a large enough specification, which limits the mass production of the open case. It is necessary to design a A New Benchmark Establishment Process

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