CN103272949B - Machining method for female die with stepped holes - Google Patents
Machining method for female die with stepped holes Download PDFInfo
- Publication number
- CN103272949B CN103272949B CN201310234075.1A CN201310234075A CN103272949B CN 103272949 B CN103272949 B CN 103272949B CN 201310234075 A CN201310234075 A CN 201310234075A CN 103272949 B CN103272949 B CN 103272949B
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- China
- Prior art keywords
- grinding
- endoporus
- stepped
- stepped holes
- turning
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- 238000000034 method Methods 0.000 title abstract description 8
- 238000003754 machining Methods 0.000 title abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000003672 processing method Methods 0.000 claims description 9
- 239000003607 modifier Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005422 blasting Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention provides a machining method for a female die with stepped holes. The machining method includes blanking a forged piece; reserving 2-3mm of outer circle for rough turning, and reserving 1-2mm of length; quenching; blasting grit; performing rough turning; performing finish turning; performing heat treatment; performing bench work; grinding; and detecting. The machining method is adoptable to machining all female dies with the stepped holes; rivets processed by the female die with the stepped holes can meet the requirements of actual production completely, especially the accuracy requirements of the diameter of each stepped hole, the size of R1 of a stepped profile face and each stepped profile face; and the stepped holes are ground by two varieties of grinding rods, accordingly influence on small stepped holes during machining the stepped holes is avoided effectively on the premise of guaranteeing coaxiality, and the size of parts can be well guaranteed.
Description
Technical field
The present invention relates to a kind of processing method of stepped hole former, belong to technology of die manufacturing field.
Background technology
The rivet of various profile often can be run in technical field of aerospace; and the production of rivet is mainly formed by many aid co-productions such as former, formpiston, drifts; and directly affecting quality and the production efficiency of rivet due to the precision of above-mentioned aid, the production method therefore studying these aids is very necessary.
Stepped hole former is as the one in above-mentioned aid, and it can run into following difficult point in the fabrication process: (1) stepped hole former difference straight hole former in the past, not only requires higher in step place profile, and have R value and tolerance; (2) the stepped hole dimension precision requirement being positioned at profile both sides, step place is higher, and one is diameter d and the degree of depth e of large stepped hole
1be difficult to control; Two be the axiality of requirement two stepped hole within 0.025, end face and interior hole perpendicularity within 0.03, the depth of parallelism require within 0.02.
Summary of the invention
The object of this invention is to provide a kind of processing method of stepped hole former, various sizes and the tolerance of stepped hole former can be ensured.
Technical scheme of the present invention: a kind of processing method of stepped hole former, comprises following concrete steps:
(1) forging blanking;
(2) rough turn cylindrical stays 2-3mm, and length stays 1-2mm;
(3) modifier treatment;
(4) blast;
(5) rough turn processing: the allowance of 0.5-0.6mm is stayed at excircle of workpiece and two ends, first drill and ream endoporus d
1stay the amount of grinding of 0.01-0.04mm, then adopt with R
1blind hole reamer to drill and ream endoporus d, make endoporus d stay the amount of grinding of 0.01-0.04mm, R
1stay the amount of grinding of 0.01-0.04mm;
(6) finish turning processing: with endoporus centering turning, planar end surface, controls the perpendicularity of two stepped holes and the depth of parallelism within claimed range;
(7) heat treatment;
(8) pincers worker: lappingout endoporus and profile, to dimensional requirement, wherein first adopt common grinding rod to control endoporus d
1size, then adopt ladder grinding rod to control endoporus d, hole depth e
1and R
1size;
(9) plain grinding: grinder part two ends profile, makes the perpendicularity of the length l of workpiece and workpiece both ends of the surface meet the requirements;
(10) detect: whether qualifiedly detect stepped hole former with feeler gauge.
The processing method of described ladder grinding rod is: first make shaped profile turning cutter by projection grinder, then use shaped profile turning cutter car polishing cutter, then cuts out emery wheel, finally with the wheel grinding ladder grinding rod cut out with polishing cutter.The grinding rod processed by the method can be good at controlling stepped hole place R
1size.
Beneficial effect of the present invention: the present invention is applicable to the processing of all stepped hole formers, the needs of the complete realistic production of the rivet processed with this stepped hole former, the diameter of especially each stepped hole, the R at step profile place
1size and the required precision of each profile; The present invention's difference roughing first carried out to workpiece carry out hot worked method more in the past, but just modifier treatment was done before roughing, effectively can reduce the distortion of workpiece in process like this, workpiece uniform texture can be made; The present invention adopts two kinds of grinding rods to carry out the grinding of stepped hole, like this can impact when ensureing effectively avoid the stepped hole of processing under coaxial prerequisite on small stair hole, therefore can well ensure the size of part.
Accompanying drawing explanation
Fig. 1 is the structural representation of stepped hole former.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Fig. 3 is the structural representation of ladder grinding rod.
Fig. 4 is the structural representation of common grinding rod.
Fig. 5 is the structural representation of feeler gauge.
Detailed description of the invention
A kind of stepped hole former, as depicted in figs. 1 and 2, its processing method comprises following concrete steps:
(1) forging blanking;
(2) rough turn cylindrical stays 2mm, and length stays 2mm;
(3) modifier treatment;
(4) blast;
(5) rough turn processing: the allowance of 0.6mm is stayed at excircle of workpiece and two ends, first drill and ream endoporus d
1stay the amount of grinding of 0.04mm, then adopt with R
1blind hole reamer to drill and ream endoporus d, make endoporus d stay the amount of grinding of 0.04mm, R
1stay the amount of grinding of 0.04mm;
(6) finish turning processing: with endoporus centering turning, planar end surface, controls the perpendicularity of two stepped holes and the depth of parallelism within claimed range;
(7) heat treatment;
(8) pincers worker: lappingout endoporus and profile, to dimensional requirement, wherein first adopt common grinding rod to control endoporus d
1size, then adopt ladder grinding rod to control endoporus d, hole depth e
1and R
1size, as shown in Figure 3 and Figure 5;
(9) plain grinding: grinder part two ends profile, makes the perpendicularity of the length l of workpiece and workpiece both ends of the surface meet the requirements;
(10) detect: whether qualifiedly detect stepped hole former with feeler gauge, adopt during detection and carve hole depth e on ladder grinding rod
1higher limit and lower limit two mark lines, i.e. hole depth e
1be qualified time between two mark lines, workman can be facilitated like this to detect, as shown in Figure 5.
Claims (2)
1. the processing method of stepped hole former, is characterized in that comprising following concrete steps:
(1) forging blanking;
(2) rough turn cylindrical stays 2-3mm, and length stays 1-2mm;
(3) modifier treatment;
(4) blast;
(5) rough turn processing: the allowance of 0.5-0.6mm is stayed at excircle of workpiece and two ends, first drill and ream endoporus d
1stay the amount of grinding of 0.01-0.04mm, then adopt with R
1blind hole reamer to drill and ream endoporus d, make endoporus d stay the amount of grinding of 0.01-0.04mm, R
1stay the amount of grinding of 0.01-0.04mm;
(6) finish turning processing: with endoporus d
1or d centering turning, planar end surface, control the perpendicularity of two stepped holes and the depth of parallelism within claimed range;
(7) heat treatment;
(8) pincers worker: lappingout endoporus d
1, d and profile to dimensional requirement, wherein first adopt common grinding rod to control endoporus d
1size, then adopt ladder grinding rod to control endoporus d, hole depth e
1and R
1size;
(9) plain grinding: grinder part two ends profile, makes the perpendicularity of the length l of workpiece and workpiece both ends of the surface meet the requirements;
(10) detect: whether qualifiedly detect stepped hole former with feeler gauge.
2. the processing method of stepped hole former as claimed in claim 1, it is characterized in that the processing method of described ladder grinding rod is: first make shaped profile turning cutter by projection grinder, then use shaped profile turning cutter car polishing cutter, then cut out emery wheel, finally with the wheel grinding ladder grinding rod cut out with polishing cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234075.1A CN103272949B (en) | 2013-06-14 | 2013-06-14 | Machining method for female die with stepped holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234075.1A CN103272949B (en) | 2013-06-14 | 2013-06-14 | Machining method for female die with stepped holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103272949A CN103272949A (en) | 2013-09-04 |
| CN103272949B true CN103272949B (en) | 2015-01-21 |
Family
ID=49055627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310234075.1A Expired - Fee Related CN103272949B (en) | 2013-06-14 | 2013-06-14 | Machining method for female die with stepped holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103272949B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878290A (en) * | 2014-03-27 | 2014-06-25 | 昆山土山建设部件有限公司 | Step shaft machining method |
| CN105414889B (en) * | 2015-11-23 | 2018-04-03 | 沈阳黎明航空发动机(集团)有限责任公司 | The method that a kind of processing of rotor alloy disc component holes and rib degree exclude |
| CN110434570A (en) * | 2019-08-27 | 2019-11-12 | 四川科思精密模具有限公司 | A kind of processing method of hard mold centre hole |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287749A (en) * | 1979-11-15 | 1981-09-08 | Ford Motor Company | Tapered extrusion die and method of forming the same |
| US4580467A (en) * | 1985-04-29 | 1986-04-08 | Gus Stavropoulos | Method of making extrusion die for extruding gears |
| CN101992223A (en) * | 2010-11-12 | 2011-03-30 | 西南铝业（集团）有限责任公司 | Processing method of porous round bar die |
| CN102601597A (en) * | 2012-04-01 | 2012-07-25 | 株洲春华实业有限责任公司 | Machining process for railway riveting fastener molds |
| CN102909303A (en) * | 2011-08-04 | 2013-02-06 | 联钢精密科技(苏州)有限公司 | Screw mold one-point secondary punch case and machining process thereof |
-
2013
- 2013-06-14 CN CN201310234075.1A patent/CN103272949B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287749A (en) * | 1979-11-15 | 1981-09-08 | Ford Motor Company | Tapered extrusion die and method of forming the same |
| US4580467A (en) * | 1985-04-29 | 1986-04-08 | Gus Stavropoulos | Method of making extrusion die for extruding gears |
| CN101992223A (en) * | 2010-11-12 | 2011-03-30 | 西南铝业（集团）有限责任公司 | Processing method of porous round bar die |
| CN102909303A (en) * | 2011-08-04 | 2013-02-06 | 联钢精密科技(苏州)有限公司 | Screw mold one-point secondary punch case and machining process thereof |
| CN102601597A (en) * | 2012-04-01 | 2012-07-25 | 株洲春华实业有限责任公司 | Machining process for railway riveting fastener molds |
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|---|---|
| CN103272949A (en) | 2013-09-04 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |
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