Method and straightening tool for straightening shaft
A straightening and tooling technology, applied in the field of parts straightening, which can solve the problems of scrap, shaft bending, economic loss, etc.
Inactive Publication Date: 2019-07-19
CHONGQING GEARBOX
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Problems solved by technology
[0002] The shaft will be bent if there is a little carelessness in the manufacturing process, especially for the slender shaft, taking the shaft with a length of 3m and a diameter of 400mm as an example, it is very easy to cause the shaft to bend during the heat treatment and quenching process, and the bending If the shaft cannot be accurately calibrated to a reasonable range under the premise of ensuring its performance, it can only be scrapped, which will cause large economic losses
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[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0052] Please refer to Figure 1 to Figure 5 , figure 1 It is a schematic flowchart of the first method for aligning shafts provided by the embodiment of the present invention; figure 2 It is a sche...
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The invention discloses a method for straightening a shaft. The method comprises the steps of obtaining the bending deformation amount of the to-be-straightened shaft, and obtaining the load requiredby straightening the to-be-straightened shaft according to the bending deformation amount; loading the load on the direction opposite to the bending direction of the to-be-straightened shaft; heatingthe to-be-straightened shaft, so that the to-be-straightened shaft is subjected to high-temperature creep deformation so as to achieve reverse bending deformation; and removing the load. According tothe method for straightening the shaft, based on the characteristic that the yield strength of the material under the high-temperature state is lower than the yield strength of the material under thenormal temperature state, the loading device is used for applying the load to the direction opposite to the bending direction of the to-be-straightened shaft, and the loading device and the to-be-straightened shaft are heated to achieve the purpose of mechanical straightening. By reasonably setting the load applied to the to-be-straightened shaft by the loading device, it is ensured that the to-be-straightened shaft is bent reversely at a high temperature, so that the performance of the to-be-straightened shaft is not damaged, the straightening precision is high, and the straightening range iswide. The invention further discloses a straightening tool which can be applied to the method for straightening the shaft.
Description
technical field [0001] The invention relates to the field of parts straightening, in particular to a method for straightening shafts. The present invention also relates to a straightening tool applied to the above-mentioned method of straightening shafts. Background technique [0002] The shaft will be bent if there is a little carelessness in the manufacturing process, especially for the slender shaft, taking the shaft with a length of 3m and a diameter of 400mm as an example, it is very easy to cause the shaft to bend during the heat treatment and quenching process, and the bending If the shaft cannot be accurately calibrated to a reasonable range under the premise of ensuring its performance, it can only be scrapped, which will cause greater economic losses. [0003] For this reason, how to accurately align the shaft has become an urgent problem to be solved by those skilled in the art. Contents of the invention [0004] The purpose of the present invention is to prov...
Claims
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IPC IPC(8): B21D3/10B21D37/16
CPCB21D3/10B21D37/16
Inventor 党军玲贺志付胡云权胡丽赵芸刘聪颖
Owner CHONGQING GEARBOX