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A tube expansion method and tooling for a piece-cluster segmented oil cooler

A technology of oil cooler and tube expansion method, applied in the field of oil cooler tube expansion, can solve the problems of irregular heat sink, lamination, affecting the heat exchange performance of oil cooler and product appearance quality, etc., and achieve good product appearance quality , High heat exchange performance, and the effect of solving the problem of expanding tube laminations

Active Publication Date: 2017-01-11
江苏通顺动力科技有限公司
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Problems solved by technology

[0002] At present, the existing push-expand tube technology is a process of unidirectional preloading of sheet clusters and unidirectional shrinkage of oil tubes, which is prone to irregular lamination defects of heat sinks, affecting the heat transfer performance and product appearance quality of oil coolers

Method used

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  • A tube expansion method and tooling for a piece-cluster segmented oil cooler
  • A tube expansion method and tooling for a piece-cluster segmented oil cooler

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Embodiment

[0022] In this embodiment, a tube expansion method for segmented oil coolers of sheet clusters is as follows: figure 1 , 2 As shown, the segmented fin cluster oil cooler includes an oil pipe and the first fin cluster and the second fin cluster distributed outside the oil pipe; the first fin cluster and the second fin cluster are along the length of the oil pipe The direction is set, and there is a gap between the two, and the oil pipe between the first fin cluster and the second fin cluster is radially positioned, and in the axial direction of the oil pipe of the cluster segmented oil cooler , one end adopts the guide mechanism to guide the oil pipe axially, and the other end uses the expansion rod to expand the oil pipe until the expansion operation of the entire oil pipe is completed.

[0023] The radial positioning method of the oil pipe between the first fin cluster and the second fin cluster adopts a spring floating support mechanism to position the oil pipe on the botto...

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Abstract

The invention relates to a method and a tool for tube expansion of a fin cluster sectional type oil cooler and belongs to the technical field of tube expansion of oil coolers. The method comprises the following steps: positioning an oil tube arranged between a first section of fin cluster and a second section of fin cluster in the radial direction, in the axial direction of the fin cluster sectional type oil cooler oil tube, axially guiding the oil tube through a guide mechanism at one end in the axial direction of the oil tube of the fin cluster segmented oil cooler and carrying out tube expansion operation on the oil tube through an expansion rod and an expansion head at the other end till the tube expansion operation of the whole oil tube is finished. The method and the tool for the tube expansion of the fin cluster segmented oil cooler have the benefits that the difficult problem of expanded tube lamination is solved, the oil cooler has high heat exchange performance and good product appearance quality, the mounting position and the mounting size at the middle section are ensured at the same time, and moreover, the simultaneous expanded joint of a plurality of workpieces is also realized, so that the production efficiency is improved.

Description

technical field [0001] The invention relates to a tube expansion tool and a method for a piece-cluster segmented oil cooler, and belongs to the technical field of oil cooler tube expansion. Background technique [0002] At present, the existing push-expand tube technology is a process of unidirectional pretensioning of sheet clusters and unidirectional contraction of oil tubes, which is prone to irregular lamination defects of heat sinks and affects the heat transfer performance and product appearance quality of the oil cooler. Contents of the invention [0003] The present invention aims at the deficiencies of the above problems, and proposes a tube expansion method for segmented oil coolers with clusters that do not produce irregular laminations, have high heat transfer performance and good product appearance quality. [0004] The technical solution proposed by the present invention to solve the above-mentioned technical problems is: a method for expanding tubes of a pie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D39/08
Inventor 吴海燕季锦华
Owner 江苏通顺动力科技有限公司
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