Warm extrusion forming method and mould for high-performance low-cost abnormal-shaped three-fork universal joint
A forming die, low-cost technology, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machines, etc. The effect of reducing the turning defect rate and facilitating accurate positioning
Active Publication Date: 2018-12-25
浙江奇恩特汽车零部件有限公司
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Problems solved by technology
[0003] The present invention provides a high-performance and low-cost heterosexual three-prong universal joint temperature extrusion forming method and mold, which mainly solves the problem that the existing three-prong universal joint forming method has many production processes and a long processing process. Technical problems such as low product precision, poor mechanical properties, and short service life of the product
Method used
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Embodiment
[0038] Embodiment: The high-performance and low-cost heterosexual trident universal joint warm extrusion forming method of this example, the steps are:
[0039] a. After the material is sawed by the sawing machine, the surface of the bar is peeled to remove the scale and surface groove cracks on the surface of the material, and the 20CrMnTiH blank is produced according to the shape, size, and plasticity characteristics of the material;
[0040] b. The surface of the 20CrMnTiH blank is treated with fine sand shot blasting until the surface of the blank after shot blasting is in a fine honeycomb shape; fine sand shot blasting is carried out in a fine sand shot blasting machine, such as figure 1 , figure 2 , The fine sand shot blasting machine includes a cylinder body 1, the cylinder body is connected to the drive motor 2 through a transmission mechanism, a shot blasting conveyor belt 3 is arranged in the cylinder body, and a plurality of shot blasting main rods 4 are connected ...
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The invention relates to a processing method for abnormal-shaped three-fork universal joints, in particular to a warm extrusion forming method and mould for a high-performance low-cost abnormal-shapedthree-fork universal joint. The processing method mainly solves the technical problems of more production working procedures, long machining technological process, low product accuracy, poor mechanical property, short product service life and the like of a three-fork universal joint forming method in the prior art. The method comprises the following steps that: adopting fine sand shot blasting processing on the surface of a blank until the surface of the blank subjected to shot blasting is slightly cellular; then, heating in an intermediate frequency heating furnace, putting in a mould, and carrying out primary warm extrusion forming; then, carrying out abrasive machining and lathing machining, during lathing, taking small planes on three bulbs of a precision forging blank element as benchmark positioning surfaces, and guaranteeing the size consistency of the same batch of products; and finally, carrying out spline broaching, thermal processing and abrasive machining to finally obtaina high-performance low-cost abnormal-shaped three-fork universal joint finished product.
Description
technical field [0001] The invention relates to a processing method for a special-shaped trident universal joint, in particular to a high-performance and low-cost heterosexual trident universal joint warm extrusion forming method and a mold. Background technique [0002] With the rapid development of the automobile industry, automobiles are rapidly popularized throughout the country, with the number reaching 90 million today. At the same time, the auto parts industry is also in a stage of rapid development. Driven by the development of modern science and technology, assembly automation is gradually developing into the mainstream of assembly in the world today, gradually replacing manual assembly. Chinese patent discloses a three-ballway constant velocity universal joint cylindrical shell finishing method and its finishing punch (public number: CN103722066B), the three-ballway constant velocity universal joint cylindrical shell includes a cylindrical shell shell and the han...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23P15/00B24C3/02B24C9/00B21J5/02B21J13/02
CPCB21J5/002B21J5/02B21J13/02B23P15/00B24C3/02B24C9/00
Inventor 郑国兴周群玉彭映红徐俊丽鲁哲贤
Owner 浙江奇恩特汽车零部件有限公司