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Processing method of automobile engine front cover

A technology of automobile engine and processing method, which is applied in the field of processing the front end cover of automobile engine, can solve the problems of workpiece deformation, high cost, and high cost of injection molding technology, achieve small fine grinding allowance, stable grinding amount, and reduce subsequent processing costs Effect

Active Publication Date: 2016-03-30
湖北中航精机科技有限公司武汉中航精冲技术分公司
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AI Technical Summary

Problems solved by technology

[0002] The traditional processing method of the front end cover of the automobile engine is the powder metallurgy method (the process of mixing metal or non-metal powders, pressing them into shapes, and sintering them at a temperature lower than the melting point of the metals, and using atomic diffusion between the powders to bond them), Products processed by this method, although the injection molding technology has almost no restrictions on the complex shape of the formed parts, but due to the large amount of binder added, the workpiece will be deformed due to the influence of gravity during the heating process, so It is often necessary to add a more complex and expensive special degreasing process, making injection molding technology more expensive than conventional powder metallurgy technology

Method used

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  • Processing method of automobile engine front cover
  • Processing method of automobile engine front cover
  • Processing method of automobile engine front cover

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Embodiment Construction

[0037] Below in conjunction with specific embodiment, the present invention is further described:

[0038] Such as Figure 2-4 The processing method of the shown parts includes the following steps:

[0039] Firstly, the uncoiling and straightening machine is used to uncoil and straighten the raw material steel plate, and then the raw material steel plate is fine blanked to form a shaft hole in the center, and two blind holes are arranged next to the shaft hole, one is "L" shape, The other part is in the shape of a "table tennis racket", with a circular shape and five round holes evenly distributed in the circumferential direction. The structural diagram is as follows figure 1 As shown, in this step, when fine-blanking the shaft hole, a machining allowance of at least 2mm is reserved around the periphery, and the shape of the fine-blanking is a three-quarter circle with a notch, the side of the notch is a straight line, and the notch is facing the blind hole A machining allow...

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Abstract

This invention relates to an automotive engine front end cover processing method. The automotive engine front end cover processing method includes uncoiling and straightening, machining a part through fine blanking, wherein the center is provided with a shaft hole, a round blind hole is arranged beside the shaft hole, and a plurality of round holes are circumferentially and uniformly formed in the part; checking and sorting products without scratches; cleaning and ensuring no residual drops, no rust and fine blanking oil left; performing deburring; sorting products without scratches again; machining the blind hole in a final molding process; performing high-frequency quenching; performing shot blasting; performing surface coarse grinding on a paralleled surface grinding machine; chamfering the round holes which are circumferentially and uniformly formed in the part; tapping the round holes which are circumferentially and uniformly formed in the part; machining the shaft hole of the part to a final size; performing double-surface accurate grinding on a vertical double-sided grinder; performing deburring; performing degaussing; performing cleaning; performing packaging for storage. The automotive engine front end cover processing method can meet requirements of dimensional accuracy and location accuracy of products, enables the part machining process to achieve the most simple and optimized state, and reduces processing cost.

Description

technical field [0001] The invention relates to a processing method for an automobile engine front end cover. Background technique [0002] The traditional processing method of the front end cover of the automobile engine is the powder metallurgy method (the process of mixing metal or non-metal powders, pressing them into shapes, and sintering them at a temperature lower than the melting point of the metals, and using atomic diffusion between the powders to bond them), Products processed by this method, although the injection molding technology has almost no restrictions on the complex shape of the formed parts, but due to the large amount of binder added, the workpiece will be deformed due to the influence of gravity during the heating process, so It is often necessary to add a more complex and expensive special degreasing process, making injection molding technology more expensive than conventional powder metallurgy technology. Contents of the invention [0003] The tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 张贤武牛成香万方斌朱晓兢
Owner 湖北中航精机科技有限公司武汉中航精冲技术分公司
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