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Flexible vibration damping mandrel for processing thin-walled pipe parts and clamping method thereof

A technology for thin-walled tubes and parts, applied in the field of flexible vibration-absorbing mandrels and clamping, can solve problems such as cumbersome operations, polluting the environment, and large length-to-diameter ratios, and achieve increased rigidity and damping, simple and easy operation, and elimination of machining The effect of vibration

Inactive Publication Date: 2019-10-01
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing of thin-walled pipe parts is not easy. Due to the characteristics of poor rigidity, weak strength, and large aspect ratio, it is very easy to vibrate the tool during processing, and it is difficult to guarantee dimensional accuracy and surface quality.
At present, the commonly used processing techniques include wax filling and sand filling, etc. Such processing techniques have disadvantages such as cumbersome operation and environmental pollution, and cannot meet the production needs of batch parts

Method used

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  • Flexible vibration damping mandrel for processing thin-walled pipe parts and clamping method thereof
  • Flexible vibration damping mandrel for processing thin-walled pipe parts and clamping method thereof
  • Flexible vibration damping mandrel for processing thin-walled pipe parts and clamping method thereof

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Experimental program
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Effect test

Embodiment

[0037] Thin-walled pipe parts have 5 small openings and large inside. The inner diameter of the "big inside" is Φ113.7mm and the length is 665mm. A group of 125 O-rings 103×5.3-G-N-GB / T 3452.1-2005 using GB / T3452 standard. The middle section of the mandrel body 1 has a straight outer circle of Φ103mm, the end surface of the second end has a GB / T4459.5-A10 / 21.2 center hole, and the outer circle of the second end has an M80 external thread. The O-ring lock nut and the mandrel body 1 are screwed together with an M80 thread and have an M105 external thread. The lock nut of the parts and the O-ring lock nut are screwed together with M105 thread. Both the outer circle of the first end of the mandrel body 1 and the two nuts adopt an outer hexagonal structure for clamping and tightening.

[0038] Put 125 O-rings into the thin-walled tubular parts 5 first, then insert the mandrel body 1 into the inner hole of the O-ring group, compress the O-ring axially with the O-ring lock nut, and...

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Abstract

The invention discloses a flexible vibration damping mandrel for processing thin-walled pipe parts and a clamping method thereof. The flexible vibration damping mandrel comprise a mandrel body, wherein the mandrel body comprises a first end part, a middle section and a second end part; the middle section and the second end part are both cylindrical, and the diameter of the second end part is smaller than that of the middle section; the first end part is truncated-cone-shaped, and the diameter of one end, facing the middle section, of the first end part is smaller than that of the other end ofthe first end part; the diameter of one end, facing the middle section, of the first end part is equal to that of the middle section; and when the mandrel body is matched and clamped with the thin-walled pipe parts, a plurality of sealing rings are arranged between the middle section of the mandrel body and the thin-walled pipe parts, a sealing ring locking device used for jacking the sealing rings is arranged on the second end part, and the outer side of the sealing ring locking device is arranged on a part locking device used for jacking the thin-walled pipe parts. According to the flexiblevibration damping mandrel, the adaptability to the internal structure and the size of the parts in small batch production and the high efficiency of the clamping in mass production are considered.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a flexible damping mandrel and a clamping method for processing thin-walled pipe parts. Background technique [0002] Because of the characteristics of light weight, material saving, and compact structure, thin-walled pipe parts have been increasingly widely used in various industrial sectors. However, the processing of thin-walled pipe parts is not easy. Due to the characteristics of poor rigidity, weak strength, and large aspect ratio, it is very easy to vibrate the tool during processing, and it is difficult to guarantee dimensional accuracy and surface quality. At present, the commonly used processing techniques include wax pouring and sand filling, etc. These processing techniques have disadvantages such as cumbersome operation and environmental pollution, and cannot meet the production needs of batch parts. Contents of the invention [0003] The object of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12B23Q3/00
CPCB23Q3/00B23Q3/12
Inventor 王雷雷刘丽娟周泽建牛昱昊葛守兴李晓霞刘星王素娟
Owner AECC AVIATION POWER CO LTD
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