CN113441906A - Processing technology of automobile generator shell - Google Patents
Processing technology of automobile generator shell Download PDFInfo
- Publication number
- CN113441906A CN113441906A CN202010219182.7A CN202010219182A CN113441906A CN 113441906 A CN113441906 A CN 113441906A CN 202010219182 A CN202010219182 A CN 202010219182A CN 113441906 A CN113441906 A CN 113441906A
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- hole
- gauge
- shaft sleeve
- checking
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- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000010079 rubber tapping Methods 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 12
- 230000008014 freezing Effects 0.000 claims abstract description 8
- 238000007710 freezing Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 206010066054 Dysmorphism Diseases 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a processing technology of an automobile generator shell, which comprises the following steps: 1) casting an aluminum blank; 2) and on the machining center, milling: bottom surface A, bottom surface B, bottom surface C, bottom surface D bore: boring a bottom hole of the threaded hole A and a bottom hole of the threaded hole C: a through hole A and a through hole B; 3) and on the machining center, milling: top surface A, top surface B, waist type hole, dysmorphism hole, the bottom outlet of boring screw hole B, boring through-hole C, the hinge: a through hole A; 4) and on the machining center, milling: the end face and the rectangular hole in the center of the end face; 5) tapping a threaded hole A and a threaded hole C on a tapping machine; 6) after face replacement, tapping the threaded hole B; 7) on an assembly workbench, putting the shaft sleeve into a refrigerator, setting the freezing temperature to be-40 ℃ to-50 ℃, and freezing; then the shaft sleeve is arranged in the through hole A; 8) and checking and warehousing according to a product drawing. The invention increases the maintainability of the product by the cold-mounting shaft sleeve process.
Description
Technical Field
The invention belongs to the technical field of automobile part machining, and particularly relates to a machining process of an automobile generator shell.
Background
The automobile electrical system comprises starting, power generation, illumination, instruments and the like, and the automobile power generation system is the only system for generating and providing power for the whole automobile in the automobile electrical system. The automobile generator is the main power source of the automobile, and the function of the automobile generator is to supply power to all electric equipment (except a starter) and charge a storage battery when an engine runs normally (above idle speed). The automobile generator can be divided into a direct current generator and an alternating current generator, the alternating current generator is superior to the direct current generator in many aspects, the direct current generator is eliminated, and at present, all automobiles adopt the alternating current generator which works together with a storage battery in the automobile to play a role in generating electricity. The alternator is generally composed of a rotor, a stator, a pulley, a fan, a rectifier, front and rear cover terminals, and brush assemblies, etc., and the three-phase stator windings of the alternator are distributed in stator core slots according to a certain rule. The magnetic circuit of the alternating current generator starts from the N pole of the rotor, penetrates through a small air gap between the rotor and the stator, enters the stator core, finally returns to the S pole through the air gap, and forms a magnetic loop through the magnetic yoke. The generator of modern automobile usually has rectification circuit directly on the rectification disk, and the rectification circuit is combined with the winding of three-phase generator. When the ignition switch of the automobile is turned on, current flows through the field winding of the alternator, and magnetic flux is generated in the rotor core. When the rotor rotates, the magnetic field rotates along with the rotor, the stator winding cuts the magnetic induction lines, and each phase of winding can generate alternating current which changes according to a sine rule. Because the movement speed of each phase winding relative to the magnetic field is the same, and the structure is the same, the sinusoidal alternating current electromotive forces generated in the three-phase windings are equal in magnitude, the same in frequency and different in phase by 120 degrees. The alternating current generator consists of a generator shell and a front end cover, and a rectifying plate, a rotor, a stator and an electric brush assembly are arranged in the generator shell.
The automobile generator is simple to manufacture, low in manufacturing cost and reliable in operation, and is widely applied to the fields of new energy, automobile industry and the like. With the development of industrial technology in China, the application range of the automobile generator is wider and wider, and the requirement is higher and higher. The volume miniaturization of the automobile generator and the improvement of the requirements on output power and output performance enable vibration and noise to be important indexes for judging the quality of the motor. In the running process, the electromagnetic noise of the automobile generator is high, and becomes an important factor for restricting the development of the automobile generator. The motor structure is damaged, the service life of the motor is shortened, and great threat is caused to the reliable operation of the motor.
The automobile generator shell is one of important parts of an automobile generator, and the dimensional tolerance precision and the form and position tolerance precision of the automobile generator shell have great influence on interchangeability, assembly performance and service life. The shell of the automobile generator produced by the existing processing method is easy to damage and break, and particularly, the shell of the automobile generator cannot be replaced after the connecting shaft is damaged, so that the problem to be solved urgently in the industry is solved.
How to design a processing technology of an automobile generator shell and how to improve a processing method to avoid the easy damage and fracture of the automobile generator shell becomes a problem to be solved urgently.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a processing technique for an automobile generator housing, which is used to solve the problem that the automobile generator housing produced by the processing method of the prior art is easy to be damaged and broken, and especially cannot be replaced after the connecting shaft is damaged.
In order to achieve the purpose, the invention provides a processing technology of an automobile generator shell, which comprises the following steps:
1) casting an aluminum blank;
2) on the machining center, the rotating speed of a main shaft is selected to be 1000 revolutions per minute, a special fixture is used for clamping a generator shell, and the milling is carried out: bottom surface A, bottom surface B, bottom surface C, bottom surface D bore: boring a bottom hole of the threaded hole A and a bottom hole of the threaded hole C: processing the through holes A and B to the drawing requirements in various sizes, and checking by using a vernier caliper, a flat-plate feeler gauge, an inner diameter gauge and a go-no-go gauge;
3) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: top surface A, top surface B, waist type hole, dysmorphism hole, the bottom outlet of boring screw hole B, boring through-hole C, the hinge: processing the through hole A to the drawing requirements in each size, and checking by using a vernier caliper, a depth gauge and a go-no go gauge;
4) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: processing the rectangular holes in the end face and the center of the end face to meet the requirements of a drawing, and inspecting by using a vernier caliper and a flat plug gauge;
5) tapping a threaded hole A and a threaded hole C on a tapping machine, processing each size to the requirement of a drawing, and checking by using a thread go-no-go gauge;
6) after the surface is changed on a tapping machine, tapping a threaded hole B, machining the size of the threaded hole B to the requirement of a drawing, and checking by using a thread go-no-go gauge;
7) and cold mounting of the shaft sleeve: on an assembly workbench, the shaft sleeve is placed in a refrigerator, the freezing temperature is set to be-40 ℃ to-50 ℃, and freezing is carried out; then the shaft sleeve is arranged in the through hole A;
8) and checking and warehousing according to a product drawing.
In an embodiment of the present invention, in the step 7), the sleeve (16) is an MC nylon sleeve.
In an embodiment of the present invention, in the step 7), the sleeve (16) is a copper alloy sleeve.
As mentioned above, the processing technology of the automobile generator shell is convenient to process and reasonable in technology, the maintainability of the product is improved through the cold-mounted shaft sleeve technology, the product quality and the production efficiency are improved, the maintenance cost is reduced, and the processing technology has good economic benefits and social benefits when being popularized and applied.
Drawings
FIG. 1 is a three-dimensional view of a product of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
In the figure: 1. a bottom surface A; 2. a bottom surface B; 3. a bottom surface C; 4. a bottom surface D; 5. a through hole A; 6. a shaft sleeve; 7. a top surface A; 8. a threaded hole A; 9. a threaded hole B; 10. a through hole B; 11. a top surface B; 12. an end face; 13. a threaded hole C; 14. a kidney-shaped hole; 15. a through hole C; 16. a special-shaped hole.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 3, a processing technology of an automobile generator shell comprises the following steps:
1) casting an aluminum blank;
2) on the machining center, the rotating speed of a main shaft is selected to be 1000 revolutions per minute, a special fixture is used for clamping a generator shell, and the milling is carried out: bottom a1, bottom B2, bottom C3, bottom D4, drilled: bottom holes of the threaded hole A8 and the threaded hole C13, and boring: processing the through hole A5 and the through hole B10 to the requirements of the drawing, and checking by using a vernier caliper, a flat feeler gauge, an inner diameter gauge and a go-no-go gauge;
3) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: top surface A7, top surface B11, kidney-shaped hole 14, dysmorphism hole 16, the bottom hole of boring screw hole B9, boring through-hole C15, the hinge: processing the through hole A5 to meet the drawing requirements in various sizes, and checking by using a vernier caliper, a depth gauge and a go-no go gauge;
4) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: processing the sizes of rectangular holes in the centers of the end surfaces 12 and 12 to the requirements of a drawing, and checking by using a vernier caliper and a flat plug gauge;
5) tapping a threaded hole A8 and a threaded hole C13 on a tapping machine, processing the threaded holes to the requirements of a drawing in various dimensions, and checking the threaded holes by using a thread go-no-go gauge;
6) after the surface is changed on a tapping machine, tapping a threaded hole B9, machining the size to the requirement of a drawing, and checking by using a thread go-no-go gauge;
7) and cold mounting of the shaft sleeve: on an assembly workbench, the shaft sleeve 16 is placed in a refrigerator, the freezing temperature is set to be-40 ℃ to-50 ℃, and freezing is carried out; then the bushing 16 is installed in the through hole a 5;
8) checking and warehousing according to a product drawing;
in the step 7), the shaft sleeve (16) adopts an MC nylon shaft sleeve;
in the step 7), the shaft sleeve (16) is made of copper alloy.
In conclusion, the processing technology for the automobile generator shell provided by the invention is convenient to process and reasonable in technology, the maintainability of the product is improved through the cold-mounted shaft sleeve technology, the product quality and the production efficiency are improved, and the maintenance cost is reduced. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (3)
1. A processing technology of an automobile generator shell is characterized in that: the method comprises the following steps:
1) casting an aluminum blank;
2) on the machining center, the rotating speed of a main shaft is selected to be 1000 revolutions per minute, a special fixture is used for clamping a generator shell, and the milling is carried out: bottom surface A (1), bottom surface B (2), bottom surface C (3), bottom surface D (4), bore: bottom holes of the threaded holes A (8) and bottom holes of the threaded holes C (13) are bored: processing the through holes A (5) and B (10) to the drawing requirements in various sizes, and checking by using a vernier caliper, a flat feeler gauge, an inner diameter gauge and a go-no go gauge;
3) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: top surface A (7), top surface B (11), waist type hole (14), dysmorphism hole (16), the bottom outlet of boring screw hole B (9), boring through-hole C (15), the hinge: processing the through holes A (5) to the drawing requirements in various sizes, and checking by using a vernier caliper, a depth gauge and a go-no go gauge;
4) on the machining center, the rotating speed of a main shaft is selected to be 1500 revolutions per minute, the shell of the generator is clamped by a special clamp, and the milling is carried out: processing the sizes of the rectangular holes in the centers of the end surfaces (12) and the end surfaces (12) to the requirements of a drawing, and checking by using a vernier caliper and a flat plug gauge;
5) tapping a threaded hole A (8) and a threaded hole C (13) on a tapping machine, processing each size to the requirement of a drawing, and checking by using a thread go-no-go gauge;
6) after the surface is changed on a tapping machine, tapping a threaded hole B (9), machining the size to the requirement of a drawing, and checking by using a thread go-no-go gauge;
7) and cold mounting of the shaft sleeve: on an assembly workbench, the shaft sleeve (16) is placed in a refrigerator, the freezing temperature is set to be-40 ℃ to-50 ℃, and freezing is carried out; then the shaft sleeve (16) is arranged in the through hole A (5);
8) and checking and warehousing according to a product drawing.
2. The processing technology of the automobile generator shell as claimed in claim 1, wherein the processing technology comprises the following steps: in the step 7), the shaft sleeve (16) is an MC nylon shaft sleeve.
3. The processing technology of the automobile generator shell as claimed in claim 1, wherein the processing technology comprises the following steps: in the step 7), the shaft sleeve (16) is made of copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219182.7A CN113441906A (en) | 2020-03-25 | 2020-03-25 | Processing technology of automobile generator shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219182.7A CN113441906A (en) | 2020-03-25 | 2020-03-25 | Processing technology of automobile generator shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113441906A true CN113441906A (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010219182.7A Pending CN113441906A (en) | 2020-03-25 | 2020-03-25 | Processing technology of automobile generator shell |
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| Country | Link |
|---|---|
| CN (1) | CN113441906A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090103646A (en) * | 2008-03-27 | 2009-10-01 | 김기환 | The oil presser attached Die-casting Assembling Method for the vehicle's gear Box. |
| CN102990286A (en) * | 2011-09-16 | 2013-03-27 | 鞠小平 | Method for processing final drive housing assembly for brake |
| CN103990939A (en) * | 2014-04-16 | 2014-08-20 | 靖江市顺达模具厂 | Method for machining automobile transmission front body |
| CN104439958A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Automobile cylinder cover machining method |
-
2020
- 2020-03-25 CN CN202010219182.7A patent/CN113441906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090103646A (en) * | 2008-03-27 | 2009-10-01 | 김기환 | The oil presser attached Die-casting Assembling Method for the vehicle's gear Box. |
| CN102990286A (en) * | 2011-09-16 | 2013-03-27 | 鞠小平 | Method for processing final drive housing assembly for brake |
| CN103990939A (en) * | 2014-04-16 | 2014-08-20 | 靖江市顺达模具厂 | Method for machining automobile transmission front body |
| CN104439958A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Automobile cylinder cover machining method |
Non-Patent Citations (1)
| Title |
|---|
| 江苏省建筑安全与设备管理协会: "《江苏省建筑安装工程施工技术操作规程 合订本 下》", 30 September 2007, 中国城市出版社 * |
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Application publication date: 20210928 |
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| RJ01 | Rejection of invention patent application after publication |