CN106925963A - A kind of processing method of compression piston - Google Patents
A kind of processing method of compression piston Download PDFInfo
- Publication number
- CN106925963A CN106925963A CN201710118441.5A CN201710118441A CN106925963A CN 106925963 A CN106925963 A CN 106925963A CN 201710118441 A CN201710118441 A CN 201710118441A CN 106925963 A CN106925963 A CN 106925963A
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- China
- Prior art keywords
- plug
- fixed part
- piston cavity
- plug fixed
- 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 present invention relates to a kind of processing method of compression piston, the method is comprised the following steps：Plug fixed part is set in the outside of compression piston opening, technique chuck is set in the outside of compression piston blind hole, V-groove is opened up in the junction periphery of plug fixed part and piston cavity；The endoporus of plug fixed part and piston cavity is machined to design requirement, semifinishing plug fixed part and piston cavity it is cylindrical；On the basis of the endoporus of plug fixed part, with processing plug；Plug is bonded in the endoporus of plug fixed part；Open up a centre bore respectively on plug and technique chuck；On the basis of two centre bores, positioning processing plug fixed part and piston cavity it is cylindrical to design requirement；Using low-speed WEDM processing removal technique chuck, plug and plug fixed part are removed along the center line processing of V-groove.The present invention can improve the machining accuracy of compression piston, it is to avoid compression piston is cylindrical to deform in process.
Description
Technical field
The present invention relates to compression piston processing technique field, and in particular to a kind of processing method of compression piston.
Background technology
Compression piston is blind hollow part, and its wall thickness is 1-1.5mm, and cylindrical deviation from cylindrical form requirement is micron order, and is pressed
Two holes for assembling compression piston pin are designed with contracting piston.At present, in the process of compression piston, compression piston
Blind hole end technique chuck is set, and be machined with centre bore in technical clamp end surface, use mandrel in the opposite side of compression piston
With endoporus tight fit.It is cylindrical to design requirement using peripheral milling finishing with compression piston two ends centre bore as positioning datum, then
Mandrel is taken out, technique chuck is then prescinded by the method for silk thread cutting of being careful.But the mandrel of close-fitting is matched somebody with somebody for interference in the method
Close, it has side force to compression piston endoporus, and the wall thickness of compression piston is relatively thin, its is cylindrical to be easily deformed, and cylindrical
Processing meets design requirement when taking out mandrel, the disappearance of power that mandrel is produced to compression piston endoporus, compression piston it is cylindrical with interior
Hole is again deformed, and off-gage phenomenon occurs.
The content of the invention
It is an object of the invention to provide a kind of processing method of compression piston, the method can solve the problem that and deposit in the prior art
Deficiency, improve the machining accuracy of compression piston, it is to avoid compression piston is cylindrical to deform in process, and with behaviour
The features such as making convenient, high in machining efficiency.
To achieve the above object, present invention employs following technical scheme：
A kind of processing method of compression piston, the compression piston includes piston cavity, is opened in the opening of piston cavity one end
And it is arranged on the blind hole of the piston cavity other end；The processing method of the compression piston is comprised the following steps：
（1）Set and the integrally formed plug fixed part of piston cavity in the outside of compression piston opening, in compression piston blind hole
Outside set with the integrally formed technique chuck of piston cavity, opened up with the junction periphery of piston cavity in plug fixed part
V-groove；The plug fixed part is the hollow cylinder being coaxially disposed with piston cavity, and plug fixed part internal-and external diameter respectively with
The internal-and external diameter of piston cavity is equal；
（2）The endoporus of plug fixed part and piston cavity is machined to design requirement, with plug fixed part and piston cavity
On the basis of hole, semifinishing plug fixed part and piston cavity it is cylindrical, it is ensured that plug fixed part and piston cavity it is cylindrical with
The female coaxial of plug fixed part and piston cavity；
（3）On the basis of the endoporus of plug fixed part, with processing plug；
（4）Plug is bonded in the endoporus of plug fixed part using structure glue；
（5）By plug fixed part and piston cavity it is cylindrical on the basis of, open up a center respectively on plug and technique chuck
Hole；
（6）On the basis of two centre bores, positioning processing plug fixed part and piston cavity it is cylindrical to design requirement；
（7）Using low-speed WEDM processing removal technique chuck, plug and plug is gone to fix along the center line processing of V-groove
Portion.
Further, the optimum angle of the V-groove is 60 ~ 90 degree, is 1 ~ 1.5mm along the width of piston cavity axial direction.V
Type groove is effectively reduced line and prescinds the stress deformation produced during except plug fixed part.
Further, the plug is made of steel or copper material.Preferably, the plug uses 45# steel.Plug
The cylindrical inner circle gap with plug fixed part coordinate, and gap between cylindrical and plug fixed part the inner circle of plug is
0.02~0.05mm.The periphery of the plug offers the annular groove for interstitital texture glue.The structure glue is produced for 3M companies
DP490 structure glues.
Further, the annular groove is 0.5 ~ 1.5mm along the width of piston cavity axial direction.For interstitital texture glue, should
Width can suitably be adjusted according to the length of plug.
From above technical scheme, the present invention can solve the problem that the deficiencies in the prior art, improve compression piston
Machining accuracy, it is to avoid compression piston is cylindrical to deform in process, and with the spy such as easy to operate, processing efficiency is high
Point.
Brief description of the drawings
Fig. 1 is processing structural representation of the invention.
Wherein：
1st, piston cavity, 2, plug fixed part, 3, technique chuck, 4, plug, 5, V-groove, 6, annular groove, 7, centre bore.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
A kind of processing method of compression piston as shown in Figure 1, the compression piston includes piston cavity 1, is opened in plunger shaft
The opening of the one end of body 1 and it is arranged on the blind hole of the other end of piston cavity 1；The processing method of the compression piston includes following step
Suddenly：
（1）Set and the integrally formed plug fixed part 2 of piston cavity 1 in the outside of compression piston opening, it is blind in compression piston
The outside in hole is set and the integrally formed technique chuck 3 of piston cavity 1, outside the junction of plug fixed part 2 and piston cavity 1
Zhou Kaishe V-grooves 5；The plug fixed part 2 is the hollow cylinder being coaxially disposed with piston cavity 1, and plug fixed part 2 is interior
Internal-and external diameter of the external diameter respectively with piston cavity 1 is equal.
（2）The endoporus of plug fixed part 2 and piston cavity 1 is machined to design requirement, with plug fixed part 2 and plunger shaft
On the basis of the endoporus of body 1, semifinishing plug fixed part 2 and piston cavity 1 it is cylindrical, it is ensured that plug fixed part 2 and plunger shaft
The cylindrical and plug fixed part 2 and the female coaxial of piston cavity 1 of body 1.
（3）On the basis of the endoporus of plug fixed part 2, with processing plug 4.
（4）Plug 4 is bonded in the endoporus of plug fixed part 2 using structure glue.
（5）By plug fixed part 2 and piston cavity 1 it is cylindrical on the basis of, opened up respectively on plug 4 and technique chuck 3
One centre bore 7.
（6）On the basis of two centre bores 7, the cylindrical extremely design of positioning processing plug fixed part 2 and piston cavity 1 will
Ask.
（7）Using low-speed WEDM processing removal technique chuck 3, remove plug 4 along the center line processing of V-groove 5 and block up
Head fixed part 2.
Further, the optimum angle of the V-groove 5 be 60 ~ 90 degree, along the axial direction of piston cavity 1 width be 1 ~
1.5mm, V-groove is effectively reduced line and prescinds the stress deformation produced during except plug fixed part.
Further, the plug 4 is made of steel or copper material.Preferably, the plug 4 uses 45# steel.It is stifled
The inner circle gap of first 4 cylindrical and plug fixed part 2 coordinates, and between cylindrical and plug fixed part 2 the inner circle of plug 4 most
Good gap is 0.02 ~ 0.05mm, and the gap is used for interstitital texture glue.The periphery of the plug 4 is offered for interstitital texture glue
Annular groove 6.The structure glue is the DP490 structure glues of 3M companies production.
Further, the annular groove 6 is 0.5 ~ 1.5mm along the width of the axial direction of piston cavity 1, and the annular groove is used to fill
Structure glue, the width can suitably be adjusted according to the length of plug.
Design principle of the invention is：
First, the present invention sets plug fixed part in the outside of compression piston opening, for connecting plug；In compression piston blind hole
Outside set technique chuck, for machining center hole；V-type is opened up in the junction periphery of plug fixed part and piston cavity
Groove, V-groove prescinds the stress deformation produced during except plug fixed part for reducing line.Secondly, the present invention is first by plug fixed part
And the endoporus of piston cavity is machined to design requirement, then on the basis of endoporus semifinishing plug fixed part and piston cavity it is outer
Circle, makes cylindrical and female coaxial, to ensure the uniformity of piston wall thickness.Again, the present invention is with the endoporus of plug fixed part as base
Standard, with processing plug, plug and piston fixed part endoporus are that gap coordinates, it is to avoid plug is deformed to piston, and uses
Be bonded in plug in plug fixed part endoporus by structure glue, piston is connected with plug, and on the basis of outside piston,
On plug and technique chuck centre bore is opened up, on the basis of two centre bores, positioning processing plug fixed part and piston cavity
It is cylindrical to design requirement, so as to avoid because of the deformation that process equipment clamping piston is produced.Furthermore, the present invention is using silk thread of being careful
Cutting processing removes technique chuck, and plug and plug fixed part are removed along the center line processing of V-groove, satisfactory so as to obtain
Compression piston.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (4)
1. a kind of processing method of compression piston, it is characterised in that：The compression piston includes piston cavity, is opened in plunger shaft
The opening of body one end and it is arranged on the blind hole of the piston cavity other end；The processing method of the compression piston is comprised the following steps：
（1）Set and the integrally formed plug fixed part of piston cavity in the outside of compression piston opening, in compression piston blind hole
Outside set with the integrally formed technique chuck of piston cavity, opened up with the junction periphery of piston cavity in plug fixed part
V-groove；The plug fixed part is the hollow cylinder being coaxially disposed with piston cavity, and plug fixed part internal-and external diameter respectively with
The internal-and external diameter of piston cavity is equal；
（2）The endoporus of plug fixed part and piston cavity is machined to design requirement, with plug fixed part and piston cavity
On the basis of hole, semifinishing plug fixed part and piston cavity it is cylindrical, it is ensured that plug fixed part and piston cavity it is cylindrical with
The female coaxial of plug fixed part and piston cavity；
（3）On the basis of the endoporus of plug fixed part, with processing plug；
（4）Plug is bonded in the endoporus of plug fixed part using structure glue；
（5）By plug fixed part and piston cavity it is cylindrical on the basis of, open up a center respectively on plug and technique chuck
Hole；
（6）On the basis of two centre bores, positioning processing plug fixed part and piston cavity it is cylindrical to design requirement；
（7）Using low-speed WEDM processing removal technique chuck, plug and plug is gone to fix along the center line processing of V-groove
Portion.
2. the processing method of a kind of compression piston according to claim 1, it is characterised in that：The angle of the V-groove is
60 ~ 90 degree, be 1 ~ 1.5mm along the width of piston cavity axial direction.
3. the processing method of a kind of compression piston according to claim 1, it is characterised in that：The plug using steel or
Copper material is made；The inner circle gap of the cylindrical and plug fixed part of plug coordinates, and the cylindrical and plug fixed part of plug
Gap between inner circle is 0.02 ~ 0.05mm；The periphery of the plug offers the annular groove for interstitital texture glue.
4. the processing method of a kind of compression piston according to claim 3, it is characterised in that：The annular groove is along plunger shaft
The width of body axial direction is 0.5 ~ 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118441.5A CN106925963B (en) | 2017-03-01 | 2017-03-01 | A kind of processing method of compression piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710118441.5A CN106925963B (en) | 2017-03-01 | 2017-03-01 | A kind of processing method of compression piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106925963A true CN106925963A (en) | 2017-07-07 |
| CN106925963B CN106925963B (en) | 2018-08-10 |
Family
ID=59423563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710118441.5A Active CN106925963B (en) | 2017-03-01 | 2017-03-01 | A kind of processing method of compression piston |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598502A (en) * | 2017-09-19 | 2018-01-19 | 中国电子科技集团公司第十六研究所 | A kind of processing method of piston |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107552A (en) * | 1986-10-31 | 1988-05-11 | 克罗斯公司 | The apparatus and method of finishing pistons and so on |
| JPH0569240A (en) * | 1991-09-10 | 1993-03-23 | Hino Motors Ltd | Method of forming hollow wear-resisting ring for diesel engine piston |
| CN2592333Y (en) * | 2002-12-12 | 2003-12-17 | 薛玉田 | Clamp for piston outer diameter working machine |
| CN201211617Y (en) * | 2008-05-19 | 2009-03-25 | 安徽祝成动力机械有限公司 | Multi-purpose fixture clamper for piston oil hole processing |
| CN205096550U (en) * | 2015-10-09 | 2016-03-23 | 江苏兄弟活塞有限公司 | Rough turn processing frock of ring carrier formula piston excircle |
-
2017
- 2017-03-01 CN CN201710118441.5A patent/CN106925963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107552A (en) * | 1986-10-31 | 1988-05-11 | 克罗斯公司 | The apparatus and method of finishing pistons and so on |
| JPH0569240A (en) * | 1991-09-10 | 1993-03-23 | Hino Motors Ltd | Method of forming hollow wear-resisting ring for diesel engine piston |
| CN2592333Y (en) * | 2002-12-12 | 2003-12-17 | 薛玉田 | Clamp for piston outer diameter working machine |
| CN201211617Y (en) * | 2008-05-19 | 2009-03-25 | 安徽祝成动力机械有限公司 | Multi-purpose fixture clamper for piston oil hole processing |
| CN205096550U (en) * | 2015-10-09 | 2016-03-23 | 江苏兄弟活塞有限公司 | Rough turn processing frock of ring carrier formula piston excircle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598502A (en) * | 2017-09-19 | 2018-01-19 | 中国电子科技集团公司第十六研究所 | A kind of processing method of piston |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106925963B (en) | 2018-08-10 |
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Address after: 230088 658 Wangjiang West Road, Hefei high tech Zone, Anhui Patentee after: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE Address before: No. 439, Suixi Road, Luyang District, Hefei City, Anhui Province, 230043 Patentee before: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE |