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a cutting tool

A cutting tool and tool holder technology, which is applied to the cutting tools, shearing devices, manufacturing tools and other directions of shearing machine devices, can solve the problems of flattening of heat exchange tubes and low yield of heat exchangers, and improve the yield of finished products. , Improve production efficiency and ensure the effect of welding quality

Active Publication Date: 2016-01-13
GREE ELECTRIC APPLIANCES INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is necessary to trim the heat exchange tubes. At present, if ordinary scissors are used to cut the tubes, the gap between the heat exchange tubes will be too small to operate. The heat exchange tubes will be flattened to form stress concentration
Resulting in low heat exchanger yield

Method used

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Embodiment Construction

[0045] The inventor found that cutting the heat exchange tubes with ordinary scissors cannot be operated because the gap between the heat exchange tubes is too small, and because the wall thickness of the heat exchange tubes is only 0.3mm and the middle is suspended, the heat exchange tubes will be flattened during the cutting process Stress concentration is formed, resulting in low heat exchanger yield. How to improve the yield of heat exchangers has become a technical problem.

[0046] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solutions of the invention described in the claims.

[0047] The invention provides a cutting tool to achieve the purpose of improving the yield of heat exchangers.

[0048] li...

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Abstract

An embodiment of the invention discloses a cutting tool comprising a fixing sleeve, a tool rest and a transmission pin. The fixing sleeve is fixed on a drive device. The tool rest rotating relative to the fixing sleeve is disposed inside the fixed sleeve. A blade is disposed on the periphery of the tool rest. The transmission pin driven by the drive device to drive the tool rest to rotate is disposed at the rear end of the tool rest. Before use of the cutting tool, the fixing sleeve is fixed on the drive device and the transmission pin is connected to the output end of the drive device; the drive device rotates at high speed and drives the tool rest to rotate at high speed through the transmission pin; the blade on the tool rest is placed at the part, to be cut, of a heat exchange tube of a heat exchanger and contacts with the heat exchange tube; redundant part of the heat exchange tube is cut off by the blade operating at high speed. The cutting tool has the advantages that the problem of unequal length of heat exchange tubes in a large finned heat exchanger is solved; the heat exchange tubes are cut from inside, so that flattening the heat exchange tubes is avoided, subsequent operations are facilitated for staff and production efficiency is improved; meanwhile, welding quality is guaranteed so that the yield of heat exchangers is increased.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and more specifically relates to a cutting tool. Background technique [0002] Large finned heat exchangers usually use horizontal shrinkable expansion tubes in production. On the one hand, the stretching ratio of copper tubes in large-scale finned heat exchangers is not consistent; on the other hand, the tightness of fins in different regions of large-scale finned heat To jump, so that the length of the heat exchange tubes on the same heat exchanger is different. Therefore, it is necessary to trim the heat exchange tubes. At present, if ordinary scissors are used to cut the tubes, the gap between the heat exchange tubes will be too small to operate. The heat exchange tubes will be flattened to form stress concentrations. As a result, the yield of the heat exchanger is low. [0003] To sum up, how to improve the yield of the heat exchanger has become a technical problem to be solved ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D35/00
Inventor 王鹏张海啸舒益胜王令
Owner GREE ELECTRIC APPLIANCES INC
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