Center support mechanism and machined fixtures for the engine case

Abstract

The invention discloses a central part support mechanism and a machined fixing device for an engine casing, relates to the technical field of machining, and includes a sleeve and a pillar, the pillar is movably socketed in the sleeve, and the top of the pillar is used for Support the central part of the engine casing, the sleeve and the pillar are also connected by a spring, and also include a support assembly, the support adjustment assembly includes a slope block, which has a first support slope, and an adjustment rod, which is connected to the The sleeve is screwed, and the rotation of the adjustment rod drives the inclined plane block so that the first supporting inclined plane and the second supporting inclined plane on the pillar are wedge-shaped to achieve support. The present invention can support the central part of the engine casing Adaptive support has good adaptability, which is beneficial to prevent the thinner part of the central part of the engine casing from being prone to concave deformation during machining, and at the same time effectively avoid the existing high-frequency vibration during machining. The thread support mechanism is easy to loosen.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a central part support mechanism and a machining fixing device for an engine casing. Background technique [0002] Machining refers to the process of changing the shape or performance of the workpiece through a mechanical device. Some engine casing machines often need to be machined through a machining center. The shell is supported. [0003] In order to avoid the vibration of the engine casing due to the milling force and prevent the parts from being deformed during processing, the existing Chinese patent announcement number is: CN209304117U. The patent includes a bolt at one end of the spacer; the bracket is an L-shaped structure in cross section, and the two sides of the L-shaped structure of the bracket are perpendicular to each other; one side is horizontal and the other is vertical; There is a through slot, the bolt of the spacer can be inserted into the thr...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that for large-sized engine casings, the supporting devices, positioning devices and clamping devices in the prior art are all concentrated on the edges or openings of the engine casing, but for part of the engine casing In terms of size, the central part is relatively thin, and it is the stress-bearing part of planing and grinding. When the edge part is fixed and clamped, the thinner part of the center is prone to concave deformation during machining.

In view of this problem, there is also a solution in the prior art to set up a threaded support mechanism for support, but the threaded support mechanism is easy to loosen during high-frequency vibration during machining

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