CN109317937A - A kind of improved aluminum piston processing method - Google Patents
A kind of improved aluminum piston processing method Download PDFInfo
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- CN109317937A CN109317937A CN201811342596.8A CN201811342596A CN109317937A CN 109317937 A CN109317937 A CN 109317937A CN 201811342596 A CN201811342596 A CN 201811342596A CN 109317937 A CN109317937 A CN 109317937A
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- Prior art keywords
- top surface
- smart car
- skirt
- axis
- piston
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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
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of improved aluminum piston processing methods.The processing method the following steps are included: (1) in the process of smart car skirt section, while smart car top surface positioning surface；(2) precision bored hole 8 is positioned using top surface positioning surface 27 and head outer circle 9, pin hole axis has determined with the skirt axis error of perpendicularity at this time；(3) last smart car top surface 7, that is, complete the processing of aluminum piston.Improvement processing method of the invention, it is the processing that same positioning datum clamped one time is completed by skirt section and top surface positioning surface, precision bored hole is with top surface positioning surface and head excircle orientation, so that Reference Transforming chain shortens (only related with smart car skirt section process and precision bored hole process) in process for pin hole and skirt section, be conducive to reduce pin hole axis and the skirt axis error of perpendicularity.
Description
Technical field
The present invention relates to mechanical processing technique field more particularly to a kind of improved aluminum piston processing technologys.
Background technique
Aluminum piston pin hole axis and the skirt axis error of perpendicularity be in aluminum piston machining one it is important
And uncontrollable location error, this error is overproof be the main reason for influencing aluminum piston machining accepted product percentage it
One.
In common aluminum piston mechanical processing technique, because there is multiple base in process in pin hole and skirt section
Quasi- conversion (benchmark is inconsistent) error, Reference Transforming chain are longer (with smart car skirt section process, smart car top surface process and precision bored hole
Process is related) so that aluminum piston pin hole axis and the skirt axis error of perpendicularity are difficult to control.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of improved aluminum piston processing methods.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that, a kind of improved aluminum piston processing side
Method, comprising the following steps:
(1) in the process of smart car skirt section, while smart car top surface positioning surface；
(2) precision bored hole 8 is positioned using top surface positioning surface 27 and head outer circle 9, pin hole axis and skirt axis are hung down at this time
Straight degree error has determined；
(3) last smart car top surface 7, that is, complete the processing of aluminum piston.
Preferably, after a positioning and clamping, completing the processing in skirt section 6 and adding for top surface positioning surface 27 in step (1)
Work, and top surface positioning surface 27 is the planar annular with piston skirt axis perpendicular.
As further preferred, piston skirt axis is piston axis of rotation.
Aluminum piston processing sequence of the invention are as follows: smart car skirt section → precision bored hole → smart car top surface.
The beneficial effects of the present invention are:
After improvement processing method of the invention, skirt section and top surface positioning surface are that same positioning datum clamped one time is completed
Processing, precision bored hole is with top surface positioning surface and head excircle orientation, so that pin hole and skirt section base in process
Quasi- conversion chains link shortens (only related with smart car skirt section process and precision bored hole process), is conducive to reduce pin hole axis and skirt axis
The error of perpendicularity.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the aluminum piston and its each section schematic diagram of the embodiment of the present invention.
Fig. 2 is the smart car head outer circle and smart car skirt section type face localization method of the prior art.
Fig. 3 is the common localization method in smart car top surface of the prior art.
Fig. 4 is the later aluminum piston top surface shape in smart car top surface of the prior art.
Fig. 5 is the right boring aluminum piston pin hole positioning schematic diagram of the prior art.
Fig. 6 is smart car skirt section and the top surface positioning surface schematic diagram of the embodiment of the present invention.
Fig. 7 is the embodiment of the present invention using top surface positioning surface as positioning datum right boring aluminum piston pin hole process schematic representation.
Fig. 1 is marked into Fig. 7: 1- seam allowance end face, 2- seam allowance inner chamfer, 3- seam allowance medial surface, 4- centre hole, the head 5-,
The skirt section 6-, the top surface 7-, 8- pin hole, the head 9- outer circle, 10- annular groove, 11- pin hole axis, 12- skirt axis, the top after 17- processing
Face, the top surface 27- positioning surface, F1- smart car top surface clamping force, F2- precision bored hole clamping force.
Specific embodiment
Fig. 1 is a kind of piston made of aluminium, is the part being integrally formed by head 5 and skirt section 6, piston middle part is along diameter
To a through-hole --- pin hole 8 is equipped with, annular groove 10 is circumferentially with along head outer circle 9.Its relative dimensions parameter is as follows: pin hole axis
The distance of 11 to piston blank top surface 7 is 62mm (top surface is undressed), behind smart car top surface, the distance of pin hole axis to piston-top surface
For 60 ± 0.03mm, the outside diameter of piston crown 5 is 90 ± 0.02mm of φ.
One, the processing method of currently used aluminum piston
In common aluminum piston mechanical processing technique, machining benchmark mainly has (see Fig. 1): seam allowance end face 1, in seam allowance
Chamfering 2, seam allowance medial surface 3, centre hole 4.
Aluminum piston pin hole axis 11 and 12 error of perpendicularity of skirt axis are that finishing section multiple working procedure positioning datum misses
The concentrated expression of difference, mismachining tolerance, in addition to the location error between 4 three of seam allowance end face 1, seam allowance inner chamfer 2 and centre hole
Outside, the process for influencing this error specifically includes that smart car skirt section 6 (being usually middle-convex and varying ellipse type face after the smart car of skirt section), smart car
Top surface 7, precision bored hole 8.
The processing sequence generallyd use are as follows: 7 → precision bored hole of smart car skirt section 6 → smart car top surface 8, referring to Fig. 1.
It in the manufacturing procedure in smart car skirt section 6, is positioned using seam allowance inner chamfer 2 and centre hole 4, centre hole 4 simultaneously clamps on
(holding out against) piston, such as Fig. 2, the skirt surface after smart car is usually middle-convex and varying ellipse type face；In the process of smart car top surface, use
Seam allowance end face 1 and seam allowance medial surface 3 position, and F1 is clamping force, such as Fig. 3, and the top surface 17 after processing is as shown in Figure 4；In right boring pin
In 8 process of hole, positioned using top surface 7 and head outer circle 9, F2 is clamping force, such as Fig. 5.
Piston pin hole axis 11 and the measuring basis of 12 error of perpendicularity of skirt axis are skirt axis 12, and skirt axis needs
The positioning datum to determine by skirt surface, and process skirt surface is seam allowance inner chamfer 2 and centre hole 4；On the other hand,
The processing of piston-top surface 7 is positioned with seam allowance end face 1 (without centre hole 4), inconsistent with the positioning datum in processing skirt section；Right boring
Pin hole process positioning datum is that the top surface 7 and head outer circle 9 after piston smart car (will first process before processing head outer circle and be located at
The annular groove 10 of head outer round surface), it is also inconsistent with the positioning datum in processing skirt section.Therefore, it is such as carried out according to usual way
There is multiple Reference Transforming (benchmark is inconsistent) error, Reference Transforming chain in process in turnery processing, pin hole and skirt section
It is longer (related with smart car skirt section process, smart car top surface process and precision bored hole process), so that piston pin hole axis 11 and skirt
Axis 12 error of perpendicularity in portion's is difficult to control.
Two, improved aluminum piston processing method
A kind of improved aluminum piston mechanical processing technique is as follows:
In smart car skirt section while 6 process, smart car top surface positioning surface 27 is increased, it may be assumed that after a positioning and clamping, complete skirt
The processing in portion 6 and the processing of top surface positioning surface 27.Top surface positioning surface 27 is and piston skirt axis 12 (i.e. piston axis of rotation)
Perpendicular planar annular, distance is 60.5 ± 0.03 between top surface positioning surface 27 and pin hole axis 11, in top surface positioning surface 27
Diameter is φ 60, referring to Fig. 6.Precision bored hole 8 is subsequently positioned using top surface positioning surface 27 and head outer circle 9, referring to Fig. 7.Hereafter
Smart car top surface 7 again, referring to Fig. 3.Relevant processing sequence are as follows: smart car skirt section 6 (positioning surface containing top surface 27) → precision bored hole 8 → essence
Roof face 7.
When processing aluminum piston using process above, pin hole axis 11 and 12 error of perpendicularity of skirt axis and smart car skirt
Portion 6 is related with 8 manufacturing procedure of precision bored hole, and unrelated with 7 process of smart car top surface, reduces error source, so that processed
Pin hole axis 11 is easier to ensure that with 12 error of perpendicularity of skirt axis in journey.
After this improved aluminum piston processing technology of the present embodiment, skirt section 6 and top surface positioning surface 27 are same
The processing that positioning datum clamped one time is completed, precision bored hole 8 are positioned with top surface positioning surface 27 and head outer circle 9, so that pin
Reference Transforming chain shortens (only related with smart car skirt section process and precision bored hole process) in process for hole and skirt section, favorably
In reduction pin hole axis and the skirt axis error of perpendicularity.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made modifications, equivalent substitutions and improvements etc., should be included in claim protection model of the invention
Within enclosing.
Claims (3)
1. a kind of improved aluminum piston processing method, comprising the following steps:
(1) in the process of smart car skirt section, while smart car top surface positioning surface；
(2) precision bored hole (8) are positioned using top surface positioning surface (27) and head outer circle (9), at this time pin hole axis and skirt axis
The error of perpendicularity has determined；
(3) last smart car top surface (7), that is, complete the processing of aluminum piston.
2. piston processing method according to claim 1, it is characterised in that: in step (1), after a positioning and clamping,
The processing of skirt section (6) and the processing of top surface positioning surface (27) are completed, and top surface positioning surface (27) is mutually hung down with piston skirt axis
Straight planar annular.
3. piston processing method according to claim 2, it is characterised in that: the piston skirt axis is piston revolution
Axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342596.8A CN109317937B (en) | 2018-11-12 | 2018-11-12 | Improved aluminum piston machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342596.8A CN109317937B (en) | 2018-11-12 | 2018-11-12 | Improved aluminum piston machining method |
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| Publication Number | Publication Date |
|---|---|
| CN109317937A true CN109317937A (en) | 2019-02-12 |
| CN109317937B CN109317937B (en) | 2020-07-10 |
Family
ID=65261501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811342596.8A Active CN109317937B (en) | 2018-11-12 | 2018-11-12 | Improved aluminum piston machining method |
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| CN2149262Y (en) * | 1993-03-26 | 1993-12-15 | 长江葛洲坝汽车改装厂 | Piston pressure casting machine |
| CN1380843A (en) * | 2000-06-09 | 2002-11-20 | 聪明伙伴创新集团有限公司 | Methods relating to constructing reciprocator assembly |
| US20030150112A1 (en) * | 2002-02-12 | 2003-08-14 | Upadhya Srinivasa K. | Piston machining |
| CN2659595Y (en) * | 2003-10-23 | 2004-12-01 | 山东滨州渤海活塞股份有限公司 | Upside down type casting mould for aluminium piston |
| CN201130194Y (en) * | 2007-09-21 | 2008-10-08 | 深圳市比克电池有限公司 | Steel needle mold and needle aculeus experimental machine with the same |
| CN102335812A (en) * | 2010-07-20 | 2012-02-01 | 台州市百达电器有限公司 | Manufacturing method for piston of reciprocating compressor |
| CN102672110A (en) * | 2012-06-12 | 2012-09-19 | 曲阜金皇活塞股份有限公司 | Mould for light-weight piston and manufacturing process of same |
| CN202597324U (en) * | 2012-05-22 | 2012-12-12 | 徐州压力机械有限公司 | Telescopic piston cylinder |
| JP2013024156A (en) * | 2011-07-22 | 2013-02-04 | Suzuki Motor Corp | Piston for internal combustion engine |
| US20160231148A1 (en) * | 2011-02-18 | 2016-08-11 | Parker-Hannifin Corporation | Floating optical sensor mount |
-
2018
- 2018-11-12 CN CN201811342596.8A patent/CN109317937B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070041A (en) * | 1991-08-29 | 1993-03-17 | 中国科学院长春光学精密机械研究所 | Method and device for comprehensively measuring position error of piston pin hole |
| CN2149262Y (en) * | 1993-03-26 | 1993-12-15 | 长江葛洲坝汽车改装厂 | Piston pressure casting machine |
| CN1380843A (en) * | 2000-06-09 | 2002-11-20 | 聪明伙伴创新集团有限公司 | Methods relating to constructing reciprocator assembly |
| US20030150112A1 (en) * | 2002-02-12 | 2003-08-14 | Upadhya Srinivasa K. | Piston machining |
| CN2659595Y (en) * | 2003-10-23 | 2004-12-01 | 山东滨州渤海活塞股份有限公司 | Upside down type casting mould for aluminium piston |
| CN201130194Y (en) * | 2007-09-21 | 2008-10-08 | 深圳市比克电池有限公司 | Steel needle mold and needle aculeus experimental machine with the same |
| CN102335812A (en) * | 2010-07-20 | 2012-02-01 | 台州市百达电器有限公司 | Manufacturing method for piston of reciprocating compressor |
| US20160231148A1 (en) * | 2011-02-18 | 2016-08-11 | Parker-Hannifin Corporation | Floating optical sensor mount |
| JP2013024156A (en) * | 2011-07-22 | 2013-02-04 | Suzuki Motor Corp | Piston for internal combustion engine |
| CN202597324U (en) * | 2012-05-22 | 2012-12-12 | 徐州压力机械有限公司 | Telescopic piston cylinder |
| CN102672110A (en) * | 2012-06-12 | 2012-09-19 | 曲阜金皇活塞股份有限公司 | Mould for light-weight piston and manufacturing process of same |
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| CN109317937B (en) | 2020-07-10 |
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Effective date of registration: 20210107 Address after: No.50, Meilin Avenue, Huangshan Economic Development Zone, Huangshan City, Anhui Province 235000 Patentee after: Huangshan Development Investment Group Co.,Ltd. Address before: 230001 No. 193, Tunxi Road, Hefei, Anhui Patentee before: Hefei University of Technology |
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