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Method for quenching band spring by using standard jig

A technology of leaf spring and standard model, applied in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve the problems of shortened cycle, large workload, indescribable, accelerated and other problems

Inactive Publication Date: 2008-08-20
东风汽车底盘系统有限公司
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Problems solved by technology

[0002] At present, in the production process, the quenching of the leaf spring must use the template, and the production of the template is hand-made, generally divided into two types: equal cross-section and variable cross-section, and each kind of leaf spring products with equal cross-section. To correspond to a set of samples, more than 8,000 pieces of samples are required to cover all leaf spring products. model, that will bring enormous pressure to the enterprise

Method used

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  • Method for quenching band spring by using standard jig
  • Method for quenching band spring by using standard jig
  • Method for quenching band spring by using standard jig

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Embodiment Construction

[0008] The standard template of equal cross-section made by this method (unit is MM) can be made of 13×90 double-groove steel plates, and the covering thickness is 9-17 equal-section leaf springs. There are 16 kinds of standard lengths, and they are 1800 and 1700 , 1600, 1500, 1400, 1300, 1200, 1100, 1000, 900, 800, 700, 600, 500, 400, 300. The details are shown in Table 1 below:

[0009] Table I:

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[0018] As shown in Table 1, when making a standard model with a length of 1800, the products with a length of 1700<L≤1800 are classified into a large category, and the arc height is summarized, counted and analyzed, and the curvature (or arc height) of the standard model is covered In this summary, the arc height is 44≤H≤156, and the sample is made with a certain distance between the arc heights. Here, a standard sample is made with an arc height every 8mm. When making the standard samp...

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Abstract

The invention provides a method for using a standard sample plate to quench a leaf spring and aims at significantly reducing the quantity of the sample plates of the leaf spring and cost for quenching the leaf springs with constant sections and improving the production efficiency. The method of the invention is characterized in that the length and the height of arc of the leaf springs with constant sections are aggregated, calculated and analyzed and the leaf springs with constant sections are classified according a certain length and then a plurality of standard sample plates are made according to a certain curvature interval of each category; when in quenching, the leaf springs with constant sections and the curvature in the interval, the standard sample plate with the most similar radius of the curvature is served as a quenching sample plate to quenching the leaf spring. As a result, the standard sample plates accounting for 1 / 40 to 1 / 20 of the current more than 8000 kinds of leaf springs with constant sections can successfully realize the quenching so as to simplify the making, management and maintenance of the sample plates and shorten the production period at the same time.

Description

technical field [0001] The method relates to a method for quenching a leaf spring by using a standard template. Background technique [0002] At present, in the production process, the quenching of the leaf spring must use the template, and the production of the template is hand-made, generally divided into two types: equal cross-section and variable cross-section, and each type of leaf spring product with equal cross-section To correspond to a set of samples, more than 8,000 pieces of samples are required to cover all leaf spring products. Model, that will bring enormous pressure to the enterprise. Contents of the invention [0003] In order to greatly reduce the number of templates, improve production efficiency, and reduce the quenching cost of equal-section leaf springs, the present invention proposes a method for quenching leaf springs using standard templates. [0004] The technical idea of ​​the present invention is: by classifying the curvatures of the leaf sprin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/02
Inventor 刘祥军
Owner 东风汽车底盘系统有限公司
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