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Machining process for automobile engine oil pan punched hole

A technology of engine oil and processing technology, applied in the direction of oil pan, lubricating parts, etc., can solve the problems of easily damaged punch, poor corrosion resistance, deformation of oil pan, etc., to achieve simple operation method, good corrosion resistance, Not easy to discolor effect

Inactive Publication Date: 2017-11-03
芜湖艾蔓设备工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The processing of automobile engine oil pan often requires punching. Traditional punching methods mainly include stamping dies, ion cutting or gas cutting, and direct wire cutting. Due to the limitation of the head strength, the size of the punching hole should not be too small, otherwise the punching head will be easily damaged; while in the ion cutting or gas cutting process, the cutting process cannot be performed due to the limitation of the minimum perforation size when perforating; while for the direct use of wire The cutting method of punching the oil pan can easily lead to deformation of the oil pan. The deformation strength of the oil pan is small enough, and it will cause problems such as inaccurate size of the punching hole, and the overall shape does not meet the requirements. Traditional punching After hole processing and electroplating treatment, the surface finish of the oil pan and punched holes is poor, and it is easy to change color and poor corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In an embodiment of the present invention, a process for punching holes in an oil pan of an automobile engine comprises the following steps:

[0021] (1) Scribe and dot the parts on the oil pan that need to be punched, and then fix the oil pan; the hardness of the oil pan is HRC50.

[0022] (2) adopt milling machine to carry out rough machining drilling at the position of described scribing and dotting;

[0023] (3) On the basis of the rough machining in step (2), according to the requirements of the drawings, wire cutting is used for corrective machining, and the rough machined holes are further cut into punching holes of required shape and size;

[0024] (4) The surface of the punched hole processed in step (3) is polished and polished, and the edge of the punched hole is deburred; the surface roughness of the oil pan is Ra0.5.

[0025] (5) Perform electroplating treatment on the oil pan after polishing and deburring treatment, and the electroplating treatment includ...

Embodiment 2

[0027] In an embodiment of the present invention, a process for punching holes in an oil pan of an automobile engine comprises the following steps:

[0028] (1) Scribe and dot the parts on the oil pan that need to be punched, and then fix the oil pan; the hardness of the oil pan is HRC52.

[0029] (2) adopt milling machine to carry out rough machining drilling at the position of described scribing and dotting;

[0030] (3) On the basis of the rough machining in step (2), according to the requirements of the drawings, wire cutting is used for corrective machining, and the rough machined holes are further cut into punching holes of required shape and size;

[0031] (4) The surface of the punched hole processed in step (3) is polished and polished, and the edge of the punched hole is deburred; the surface roughness of the oil pan is Ra0.4.

[0032] (5) Perform electroplating treatment on the oil pan after polishing and deburring treatment, and the electroplating treatment includ...

Embodiment 3

[0034] In an embodiment of the present invention, a process for punching holes in an oil pan of an automobile engine comprises the following steps:

[0035] (1) Scribe and dot the parts of the oil pan that need to be punched, and then fix the oil pan; the hardness of the oil pan is HRC55.

[0036] (2) adopt milling machine to carry out rough machining drilling at the position of described scribing and dotting;

[0037] (3) On the basis of the rough machining in step (2), according to the requirements of the drawings, wire cutting is used for corrective machining, and the rough machined holes are further cut into punching holes of required shape and size;

[0038] (4) The surface of the punched hole processed in step (3) is polished and polished, and the edge of the punched hole is deburred; the surface roughness of the oil pan is Ra0.3.

[0039] (5) Perform electroplating treatment on the oil pan after polishing and deburring treatment, and the electroplating treatment includ...

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Abstract

The invention discloses a machining process for an automobile engine oil pan punched hole. The machining process comprises the first step of scribing, the second step of roughly machining a drilled hole, the third step of correcting machining through wire-electrode cutting, the fourth step of polishing, grinding and burr pressing and the fifth step of electroplating treatment. According to the machining process, a milling machine is adopted to carry out rough machining, then, further correcting machining is carried out on the roughly-machined shape and size precision through wire-electrode cutting, and finally the needed punched hole is obtained. The problem that when wire-electrode cutting is directly adopted to conduct machining, oil pan deformation is caused easily is avoided. The operation method is simple and rapid; the precision of the oil pan punched hole is further improved on the promise of not affecting the intensity of an oil pan; the oil pan which is subjected to electroplating treatment is bright and clean in surface electroplated layer, high in precision, not prone to color changing and good in corrosion resistance, and the quality of the automobile engine oil pan is improved.

Description

technical field [0001] The invention relates to a processing method for an oil pan of an automobile engine, in particular to a processing technology for punching holes of the oil pan of an automobile engine. Background technique [0002] The processing of automobile engine oil pan often requires punching. Traditional punching methods mainly include stamping dies, ion cutting or gas cutting, and direct wire cutting. Due to the limitation of the head strength, the size of the punching hole should not be too small, otherwise the punching head will be easily damaged; while in the ion cutting or gas cutting process, the cutting process cannot be performed due to the limitation of the minimum perforation size when perforating; while for the direct use of wire The cutting method of punching the oil pan can easily lead to deformation of the oil pan. The deformation strength of the oil pan is small enough, and it will cause problems such as inaccurate size of the punching hole, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00F01M11/0004
Inventor 裴玲玲
Owner 芜湖艾蔓设备工程有限公司