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A device and method for accurately controlling the inner diameter of a titanium alloy barrel-cone composite component

A composite component and precise control technology, which is applied in the field of precise shape correction control device for thin-walled cylinder-cone components, and precise control device for inner diameter size of titanium alloy cylinder-cone composite components, which can solve the deviation of coaxiality, roundness and shape accuracy, Reduce the geometric accuracy of the workpiece, uneven stress distribution and other problems, to achieve the effect of realizing the inner diameter size, eliminating residual internal stress, and achieving precise control

Active Publication Date: 2017-04-26
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the deviation of coaxiality, roundness and shape precision caused by the inconsistent thermal shrinkage of various parts after the hot spinning of titanium alloy thin-walled components, thereby reducing the geometric precision of the workpiece, even when used as a bearing There will be problems of uneven stress distribution and lowering of its service strength when force components, and then provide a device and method for accurately controlling the inner diameter of titanium alloy barrel-cone composite components

Method used

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  • A device and method for accurately controlling the inner diameter of a titanium alloy barrel-cone composite component
  • A device and method for accurately controlling the inner diameter of a titanium alloy barrel-cone composite component
  • A device and method for accurately controlling the inner diameter of a titanium alloy barrel-cone composite component

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 1-Figure 5 Explain, a kind of device for controlling the inner diameter of a titanium alloy cylinder-cone composite component of the present embodiment, which includes a booster rod 1, a conical mold 3, a cylinder 4, a booster ring 6, a pressure plate 7 and a nut 8;

[0018] One end of the booster rod 1 is a blocking end, the other end of the booster rod 1 is a threaded end, and the booster rod 1 is sequentially fitted with a tapered mold 3, a cylinder 4, a booster ring 6 and pressure plate 7;

[0019] The conical die 3 includes an integrated cone section 3-1 and a straight section 3-2, the straight section 3-2 is arranged on the small end of the cone section 3-1, and one end of the cylinder 4 is sleeved on the straight section 3-2. 2, the other end of the cylinder 4 abuts against the inner wall of the booster ring 6, the pressure plate 7 leans against the booster ring 6, the nut 8 is screwed on the threaded end of the ...

specific Embodiment approach 2

[0021] Specific implementation mode two: combination image 3 and Figure 5 Note that the outer diameter of the cylinder 4 in this embodiment is smaller than or equal to the inner diameter of the straight cylinder 5 - 2 of the cylindrical-cone composite member 5 . Such setting facilitates the diameter expansion of the straight cylinder 5-2 of the cylindrical-cone composite member 5 step by step. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Specific implementation mode three: combination image 3 and Figure 5 Note that the device in this embodiment further includes a gasket 2 , which is arranged on the blocking end of the reinforcing rod 1 and leans against the cone section 3 - 1 of the cone mold 3 . In this way, the gasket 2 is set on the booster rod 1 and leans against the large end of the conical mold 3. After tightening the nut 8 to apply the pre-tightening force, it is beneficial for the inner surface of the cone 5-1 of the cylinder-cone composite member 5 to be in contact with the The outer surface of the cone section 3-1 of the cone die 3 is fully bonded.

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Abstract

The invention relates to an accurate shape correction control device and method for a thin-wall barrel conical part, in particular to an accurate control device and method for the inner diameter size of a titanium alloy barrel cone composite component. The problems that as the thermal contraction of all parts is not consistent after hot spinning forming of the titanium alloy thin-wall component is finished, deviation of the coaxiality, roundness and shape accuracy is caused, the geometric accuracy of a workpiece is lowered, the stress distribution is not uniform when the titanium alloy thin-wall component serves as a force bearing component, and the use intensity is lowered are solved. The accurate control device comprises a thrust augmentation rod, a conical mould, a cylinder, a thrust augmentation ring, a thrust augmentation plate and a nut, wherein the thrust augmentation rod is sequentially sleeved with the conical mould, the cylinder, the thrust augmentation ring and the thrust augmentation plate from a stop end to a threaded end, one end of the cylinder is arranged on a straight barrel section in a sleeving mode, the other end of the cylinder is tightly attached to the inner wall of the thrust augmentation ring, the thrust augmentation plate abuts against the thrust augmentation ring, and the nut is screwed to the threaded end of the thrust augmentation rod. The accurate control device and method are used for accurate control over the inner diameter size of the titanium alloy barrel cone composite component.

Description

technical field [0001] The invention relates to a device and method for precise correction and control of a thin-walled cylindrical conical part, in particular to a device and method for precise control of the inner diameter of a titanium alloy cylindrical cone composite component, and belongs to the technical field of precision thermoforming of difficult-to-deform material cylindrical parts. Background technique [0002] In the process of hot spinning of titanium alloy thin-walled components, due to the low thermal conductivity of titanium alloy, it is easy to produce temperature unevenness, resulting in coaxiality, inconsistency, and The deviation of roundness and shape accuracy will reduce the geometric accuracy of the workpiece, and even when it is used as a load-bearing component, the stress distribution will be uneven and its use strength will be reduced. Therefore, the control of the dimensional accuracy of the spinning formed structural parts is an important referenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/14
CPCB21D3/14
Inventor 徐文臣赵小凯单德彬陈宇马浩杨川
Owner HARBIN INST OF TECH
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