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Automobile leaf spring short process processing technology

A processing technology, a technology for automotive sheets, applied in vehicle parts, transportation and packaging, etc., can solve the problems of wasting hot-rolled spring flat steel waste heat, unable to form an automated production line, and high transport costs, saving energy, reducing transport costs, and reducing The effect of production costs

Active Publication Date: 2022-03-15
河南凯银机械设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional above-mentioned processing technology can only form a single-station automated production, and cannot form an automated production line. The labor cost is high, the production efficiency is low, the transfer cost between each station is high, and the heating times are many, wasting the hot-rolled spring flat steel. waste heat

Method used

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  • Automobile leaf spring short process processing technology
  • Automobile leaf spring short process processing technology
  • Automobile leaf spring short process processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0104] Embodiment 2: the variable cross-section straight-through monolithic rolling mill that is applied to the variable cross-section monolithic rolling process of automobile leaf spring in embodiment 1 is provided with a pre-heating furnace, and the spring flat steel is cut off (the 6m spring flat steel broken is 800mm After multiple single sheets), each single sheet is heated as a whole (the existing process is to heat both ends of the single sheet separately and single-head multi-pass rolling). After heating, it first enters the vertical roller mill, such as Figure 10 As shown, the vertical rollers on the left and right sides of the vertical roller mill adopt the servo hydraulic system at the same time, automatically control the reduction of the dynamic vertical roller, press the spring flat steel into a shuttle shape, and then enter the flat roller mill, and the upper roller of the flat roller mill adopts servo hydraulic pressure System, automatic control, the upper rolle...

Embodiment 3

[0119] Example 3: Considering the combination of the steel rolling production line and the self-developed "straight-through multi-plate variable-section rolling mill", using the waste heat of hot-rolled spring flat steel to develop a new short-process energy-saving automobile leaf spring process, such as figure 1 Medium 2.

[0120] The processing process of the variable cross-section leaf spring (the end is not processed) is: purchase steel billet→cut material→heat→rolling (spring flat steel)→rolling (variable cross-section product)-online cutting punching (the mold has a cutting head , corner cutting knife) → secondary heating → quenching → tempering → shot blasting → assembly → electrophoretic coating → packaging and storage.

[0121] Specifically, the production process of variable-section leaf springs (ends not processed) includes the following steps.

[0122] Cutting: According to the product process, the blanking length of the billet is calculated, and the billet is cut...

Embodiment 4

[0133] Embodiment 4: This embodiment is applied to the variable cross-section multi-sheet (continuous sheet) rolling process of Embodiment 3. According to the product process, the servo hydraulic cylinder 5 is used to drive the upper roll 7, and the distance between the upper roll 7 and the lower roll 8 is adjusted. For the roll gap, set the motor 1 speed in the computer, and the length and thickness of each segment of the variable-section leaf spring. Start the rolling mill, the motor 1 is connected to the combined reducer 3 through the coupling 2, the low-speed shaft end of the combined reducer 3 drives the upper roll 7 and the lower roll 8 to rotate through the universal coupling 4, and the spring flat steel is sent into the rolling mill. The upper roll 7 is continuously moved by the servo hydraulic cylinder 5, and then the width is trimmed by the ordinary vertical roll mill, and finally the variable-section leaf spring is rolled.

[0134] For details, see Figure 5 with ...

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Abstract

The invention discloses a short-process processing technology for an automobile leaf spring. After the automobile leaf spring is cut off, heated, and punched online, it is sent to a self-developed rolling mill through a roller table to form a variable-section single-piece or variable-section multi-piece spring flat steel , or after being sent to a hot rolling arc machine, the spring flat steel of equal section is rolled into an arc shape, and then falls into the quenching pool for quenching and other treatments. The present invention has a short technological process, adopts assembly line production before shot peening, reduces the transportation cost and labor cost between each station, accelerates the production speed, and improves the production efficiency. The variable-section straight-through single-piece rolling mill directly rolls multiple variable-section leaf springs, which reduces the number of heating times, saves natural gas energy, increases production capacity several times, and reduces production costs.

Description

technical field [0001] The invention belongs to the technical field of processing technology for automobile leaf springs, and in particular relates to a short-process processing technology for automobile leaf springs. Background technique [0002] The traditional variable cross-section automotive leaf spring processing process (no processing at the end) is: the company purchases spring flat steel (about 6m per section), cuts the material into single pieces at room temperature, and then punches / punches each single piece according to the product process. drilling. For each single piece, the workpiece is heated to 950°C at one end, rolled on a variable-section rolling mill (1-8 passes), then heated at the other end, and then rolled in the same way. Before quenching, the model worker will make the sample manually according to the product process, and then adjust the quenching machine according to the sample. After the spring flat steel is heated to 960-980°C, put it into the qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/50
Inventor 刘振安赵胜杰徐志祥郭长奎
Owner 河南凯银机械设备科技有限公司