Method for manufacturing frame of combined bicycle

A bicycle and combined technology, applied in the direction of bicycle frame, bicycle accessories, transportation and packaging, can solve the problems of affecting the beauty of the frame, joint marks, and high defect rate, and achieve a good overall sense of flow and increase the degree of fit. , the effect of reducing weight

Active Publication Date: 2011-08-31
GUANGZHOU LEONIS MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

d) Carbon fiber frame, which is light and can absorb the impact of the ground, and the material has a fast kickback force, is an ideal bicycle frame material. The grade of carbon fiber, the higher the tonnage, the higher the elasticity, and the price is also expensive, but there are The factors of low production capacity and high defective rate are troubled
The frames made of carbon steel, chrome-molybdenum steel, aluminum alloy, and titanium alloy mentioned above all need traditional welding process, and there will be seams at the joints, which will affect the beauty of the frame, and the frame is relatively heavy

Method used

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  • Method for manufacturing frame of combined bicycle
  • Method for manufacturing frame of combined bicycle
  • Method for manufacturing frame of combined bicycle

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Experimental program
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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0037] Such as figure 1 Shown, a kind of preparation method of combined bicycle frame comprises the following steps:

[0038] (1) Manufacture frame accessories, the frame accessories include frame pipes and joints, the frame pipes include aluminum alloy upper tube 4, seat stay 6, chain stay 7, down tube 5, middle tube 8 ;Such as Figures 2 to 4 As shown, the joint is a magnesium alloy joint integrally formed by die-casting, including a head pipe joint 1, a middle pipe joint 2, and a bottom bracket joint 3; The lower pipe connecting pipe section 12, the first upper pipe connecting pipe section 11 and the first lower pipe connecting pipe section 12 are provided with steps 9; the middle pipe joint 2 is extended with a second upper pipe connecting pipe section 21, The connecting pipe section 22 of the first middle pipe and the connecting pipe section ...

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Abstract

The invention provides a method for manufacturing a frame of a bicycle. The method comprises the following steps of: (1) manufacturing frame fittings, wherein the frame fittings comprise frame pipes and joints, the frame pipes comprise an upper pipe, a back upper fork, a back lower fork, a lower pipe and a middle pipe which are all made of aluminum alloy, and the joints comprise a head pipe joint, a middle pipe joint and a five-way joint which are all made of magnesium alloy; (2) processing surfaces of the frame fittings; (3) molding the frame pipes and the joints by gluing; (4) grinding and polishing the frame; and (5) performing baking finish on the surface of the frame. The whole frame utilizes the gluing molding technology so that the frame has beautiful appearance, better streamline form, and higher size precision; furthermore, the deformation and stress concentration caused by welding in the traditional manufacturing method are eliminated.

Description

technical field [0001] The invention relates to a bicycle, in particular to a method for preparing a bicycle frame. The frame is assembled by gluing. Background technique [0002] The processing technology of the existing bicycle frame generally includes the following types: a) carbon steel and chrome-molybdenum steel frame, the traditional bicycle frame is mainly made of carbon steel and chrome-molybdenum steel, and its processing technology mainly uses tube Forming by blanking processing + welding forming + correction. b) Aluminum frame. Aluminum alloy frame is the mainstream material developed in recent years. Its processing technology mainly adopts tube blanking processing + welding forming + post-processing and shaping after heat treatment. c) Titanium frame. Titanium alloy is currently mainly used in high-end frames. Its processing technology mainly adopts tube blanking processing + vacuum welding forming + post-processing shaping. d) Carbon fiber frame, which is lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K19/00B62K19/22
Inventor 黄可俭
Owner GUANGZHOU LEONIS MACHINERY
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