Production method of guide arm
A production method and guide arm technology, applied in the field of guide arms for tractors, can solve the problems of uneven gap between one spring and two leaf springs, unguaranteed product quality, and unstable curved shape, so as to ensure product quality, Good fit and stable curvature
Active Publication Date: 2018-05-01
富奥辽宁汽车弹簧有限公司
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Problems solved by technology
The guide arm processed by the existing production method is prone to flanging of the ear, which cannot be assembled on the vehicle, resulting in waste; in addition, the guide arm also has a poor roundness of the shape of the ear of the spring and low precision of the ear of the second spring. The curved shape is unstable. Drill holes for the first leaf spring and the second leaf spring, and then perform heat treatment. This will cause problems such as uneven gap between the first leaf spring and the second leaf spring, so that the product quality cannot be guaranteed and affect the use.
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[0025] A kind of production method of guiding arm is characterized in that: comprise the following steps:
[0026] 1. Cutting: process the blank with a sawing machine;
[0027] 2. Rolling: Replace the gearbox of the existing rolling mill with a hydraulic motor, and roll the blank for 7-8 passes, rolling the cross-sectional shape of the workpiece into a drum shape, while ensuring that the side bending of the reed is within a given tolerance;
[0028] 3. Ear rolling: Send the rolled workpiece (one spring and two springs) into the rolling earphone, and roll the ear of one spring. After rolling the ear, use the ear cleaning tool to repair the shape of the spring to ensure the roundness of the ear hole. The degree and ear shape; when the two-leaf spring is rolled, the edge is trimmed first, and because the length of the trimmed edge is long, the second trimming process is used; The height limit block is set on the tooling of the rolling ear to ensure the size and shape of the ear ...
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The invention relates to a production method of a guide arm for a tractor and aims to solve the problem that the quality of the guide arm produced according to the existing method cannot be ensured. The production method comprises the following steps: discharging, rolling, feeding a rolled workpiece into a coiling machine; coiling a first leaf spring; after coiling, adopting an ear swilling tool to shape the first leaf spring; carrying out side cutting on a second leaf spring before coiling; adopting a bending die to bend the root parts of the first leaf spring and the second leaf spring whilecoiling; in addition, carrying out lateral bending correction on the coiled part of the second leaf spring; pressing lateral bending: heating the workpiece in a walking-beam furnace, then, forming the workpiece on a curving machine, and carrying out tempering technology after quenching; shot blasting: drilling the second leaf spring, matching the first leaf spring with the second leaf spring, drilling a central hole in the first leaf spring, and utilizing the small central hole of the second leaf spring for automatic positioning and guiding during drilling; spraying paint, carrying out sleevepressing, and assembling; and carrying out assembly detection and paint spraying. The production method has the advantage that the processed product is high in quality.
Description
Technical field: [0001] The invention relates to a production method of a guide arm for a tractor. Background technique: [0002] The guide arm for the tractor is composed of one leaf spring and two leaf springs. The guide arm processed by the existing production method is prone to flanging of the ear, which cannot be assembled on the vehicle, resulting in waste; in addition, the guide arm also has a poor roundness of the shape of the ear of the spring and low precision of the ear of the second spring. The curved shape is unstable, and the first leaf spring and the second leaf spring are drilled first, and then heat treated, which will cause problems such as uneven gap between the first leaf spring and the second leaf spring, so that the product quality cannot be guaranteed and affect the use. Invention content: [0003] The technical problem to be solved by the present invention is to provide a production method of the guide arm which can ensure that the product does not...
Claims
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IPC IPC(8): B23P15/00
Inventor 白江郭云生景秀坤夏月周梅
Owner 富奥辽宁汽车弹簧有限公司