CN106269938A - A kind of processing method of cold-drawn piston rod - Google Patents
A kind of processing method of cold-drawn piston rod Download PDFInfo
- Publication number
- CN106269938A CN106269938A CN201610792983.6A CN201610792983A CN106269938A CN 106269938 A CN106269938 A CN 106269938A CN 201610792983 A CN201610792983 A CN 201610792983A CN 106269938 A CN106269938 A CN 106269938A
- Authority
- CN
- China
- Prior art keywords
- rod iron
- cold
- drawn
- mould
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/18—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of limited length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The processing method that the invention discloses a kind of cold-drawn piston rod, (1) first, it would be desirable to the rod iron front end car of pre-cold-drawn is little, in order to described rod iron front end can pass through mould；(2) rod iron little for front end car is lubricated, then by rod iron front end through the endoporus of described mould and outside extending to；(3) clamp described rod iron front end by the associated jaw portion of drawbench again, and outwards pull out from mould one end, by described mould sizing, be semi-finished product by described rod iron cold-drawn.(4) it is polished making piston rod finished product to described semi-finished product rod iron again.The diameter of described mould endoporus is equal to the diameter dimension of finished product piston rod, i.e. by described mould to rod iron crimp sizing, reaches the requirement of trimmed size.The present invention is by drawbench to rod iron crimp, and cold-drawn becomes the finished size of piston rod, improves product strength, does not the most waste material, has saved cost, and method is simple, reliable in quality.
Description
[technical field]
The present invention relates to piston rod rod iron processing technique field, particularly to the processing method of a kind of cold-drawn piston rod.
[background technology]
The conventional fabrication method of piston rod rod iron in the past is that hot rolled circular steel first passes through heat treatment quenching and tempering, lathe process enters again
Row polishing process is made, and costly, lathe process causes that Lathe quantity is big, waste of material big, no to this processing mode heat treatment
It is beneficial to energy-saving consumption-reducing.
[summary of the invention]
In view of this, for overcoming the deficiencies in the prior art, the present invention provides the processing method of a kind of cold-drawn piston rod, saves
Material, reduces processing charges and cost, improves the intensity of converted products.
For achieving the above object, technical scheme is as follows:
The processing method of a kind of cold-drawn piston rod, comprises the steps:
(1) first, it would be desirable to the rod iron front end car of pre-cold-drawn is little, in order to described rod iron front end can pass through mould；
(2) rod iron little for front end car is lubricated, then rod iron front end through the endoporus of described mould and is prolonged
Outside extending；
(3) clamp described rod iron front end by the associated jaw portion of drawbench again, and outwards pull out from mould one end, by described
Mould sizing, is semi-finished product by described rod iron cold-drawn.
(4) it is polished making piston rod finished product to described semi-finished product rod iron again.
The span access location length that described rod iron front end car is little is more than the length of described mould endoporus and drawbench jaw retaining part
Sum, in order to drawbench carries out cold-drawn work to rod iron.
This is because the size being sized larger than mould endoporus of pre-cold-drawn rod iron, the rod iron front end little when car passes
During mould endoporus, described rod iron front end some be in described mould endoporus, another part is to extend to adopt outside mould
Clamp by the associated jaw portion of drawbench, the little span access location length of described rod iron front end car more than both sums so that cold-drawn.
The diameter of described mould endoporus is equal to the diameter dimension of finished product piston rod, is i.e. extruded rod iron by described mould
Deformation sizing, reaches the requirement of trimmed size.
In above-mentioned steps (2), it is lubricated by the surface using lubricant to spread upon described rod iron, and described lubricant is
Saponification liquor, plays facilitation and makes its loss percentage reduce rod iron crimp.
The rod iron cold-drawn that the present invention will be greater than trimmed size by drawbench becomes close to finished size, then reaches through polishing
Finished size, cold-drawn carries out crimp, improves product strength, has reached the purpose of replacement quenched increase intensity, cold-drawn simultaneously
Processing, by mould sizing, precision is high, and this processing mode wastes material hardly.Rod iron, in drawing process, passes through mould
Tool crimp sizing, extrusion process improves the mechanical performance of rod iron to meet the mechanical property needed for piston rod.
The invention has the beneficial effects as follows, method is simple, it is safe and reliable to operate, and has saved material, reduce processing charges and
Cost, improves the intensity of converted products.
[accompanying drawing explanation]
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the application structure schematic diagram of the present invention.
In figure, 1, mould, 2, jaw, 3, rod iron, 4, drawbench.
[detailed description of the invention]
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Embodiment:
With reference to Fig. 1, the processing method of a kind of cold-drawn piston rod, its step includes:
(1) first, it would be desirable to the rod iron 3 front end car of pre-cold-drawn is little, in order to described rod iron 3 front end can pass through mould 1；
(2) rod iron 3 little for front end car is lubricated, then rod iron 3 front end is passed the endoporus of described mould 1 also
Outside extending to；
(3) clamp described rod iron front end by jaw 2 part of drawbench 4 again, and outwards pull out from mould 1 one end, pass through
Described mould 1 sizing, is semi-finished product by the cold-drawn of described rod iron 3.
(4) rod iron 3 to described semi-finished product is polished making piston rod finished product again.
The span access location length that described rod iron 3 front end car is little is more than jaw 2 retaining part of described mould 1 endoporus and drawbench 4
Length sum, in order to drawbench 4 carries out cold-drawn work to rod iron 3.
This is because the size being sized larger than mould 1 endoporus of pre-cold-drawn rod iron 3, when rod iron 3 front end that car is little
During through mould 1 endoporus, described rod iron 3 front end some be also located in the endoporus of mould 1, another part is to extend to mould
The 1 outer jaw 2 using drawbench 4 is clamped, the little span access location length of described rod iron 3 front end car more than both sums so that cold-drawn.
The diameter of mould 1 endoporus is equal to the diameter dimension of finished product piston rod, is i.e. extruded rod iron 3 by described mould 1
Deformation sizing, reaches the requirement of trimmed size.
In above-mentioned steps (2), it is lubricated by the surface using lubricant to spread upon described rod iron 3, described lubricant
For saponification liquor, facilitation is played in rod iron 3 crimp and makes its loss percentage reduce.
The rod iron cold-drawn that the present invention will be greater than trimmed size by drawbench becomes close to finished size, then reaches through polishing
Finished size, cold-drawn carries out crimp, improves product strength, has reached the purpose of replacement quenched increase intensity, cold-drawn simultaneously
Processing, by mould sizing, precision is high, and this processing mode wastes material hardly.Rod iron, in drawing process, passes through mould
Tool crimp sizing, extrusion process improves the mechanical performance of rod iron to meet the mechanical property needed for piston rod.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (4)
1. the processing method of a cold-drawn piston rod, it is characterised in that comprise the following steps:
(1) first, it would be desirable to the rod iron front end car of pre-cold-drawn is little, in order to described rod iron front end can pass through mould；
(2) rod iron little for front end car is lubricated, then rod iron front end through the endoporus of described mould and is extended to
Outward；
(3) clamp described rod iron front end by the associated jaw portion of drawbench again, and outwards pull out from mould one end, by described mould
Sizing, is semi-finished product by described rod iron cold-drawn.
(4) it is polished making piston rod finished product to described semi-finished product rod iron again.
The processing method of a kind of cold-drawn piston rod the most according to claim 1, it is characterised in that described rod iron front end car is little
Span access location length more than the length sum of described mould endoporus and drawbench jaw retaining part.
The processing method of a kind of cold-drawn piston rod the most according to claim 1, it is characterised in that described mould endoporus straight
Footpath is equal to the diameter dimension of finished product piston rod.
The processing method of a kind of cold-drawn piston rod the most according to claim 1, it is characterised in that in above-mentioned steps (2), adopt
It is lubricated by the surface with lubricator spreading upon described rod iron, and described lubricant is saponification liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792983.6A CN106269938A (en) | 2016-08-31 | 2016-08-31 | A kind of processing method of cold-drawn piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792983.6A CN106269938A (en) | 2016-08-31 | 2016-08-31 | A kind of processing method of cold-drawn piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106269938A true CN106269938A (en) | 2017-01-04 |
Family
ID=57674017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610792983.6A Pending CN106269938A (en) | 2016-08-31 | 2016-08-31 | A kind of processing method of cold-drawn piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545587A (en) * | 2020-05-14 | 2020-08-18 | 南京雄豹精密机械有限公司 | Machining method for lower die of bending machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05261412A (en) * | 1992-03-13 | 1993-10-12 | Nippon Steel Corp | Manufacture of mandrel bar |
| JPH0866715A (en) * | 1994-08-30 | 1996-03-12 | Sumitomo Metal Ind Ltd | Manufacture of wire-bar provided with highly smooth external surface |
| JPH08291372A (en) * | 1995-04-21 | 1996-11-05 | Nippon Steel Corp | Drawn parts having profiled cross section and its production |
| CN1140107A (en) * | 1996-04-18 | 1997-01-15 | 王春祥 | Microstress high-strength cold-drawn steel section and mfg. method thereof |
| CN101693259A (en) * | 2009-10-21 | 2010-04-14 | 衡阳康屹金属制品有限公司 | Production method and die of cold-drawing transmission shaft |
| CN105127220A (en) * | 2015-07-30 | 2015-12-09 | 攀钢集团江油长城特殊钢有限公司 | High-strength high-temperature alloy rod cold-drawing method |
-
2016
- 2016-08-31 CN CN201610792983.6A patent/CN106269938A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05261412A (en) * | 1992-03-13 | 1993-10-12 | Nippon Steel Corp | Manufacture of mandrel bar |
| JPH0866715A (en) * | 1994-08-30 | 1996-03-12 | Sumitomo Metal Ind Ltd | Manufacture of wire-bar provided with highly smooth external surface |
| JPH08291372A (en) * | 1995-04-21 | 1996-11-05 | Nippon Steel Corp | Drawn parts having profiled cross section and its production |
| CN1140107A (en) * | 1996-04-18 | 1997-01-15 | 王春祥 | Microstress high-strength cold-drawn steel section and mfg. method thereof |
| CN101693259A (en) * | 2009-10-21 | 2010-04-14 | 衡阳康屹金属制品有限公司 | Production method and die of cold-drawing transmission shaft |
| CN105127220A (en) * | 2015-07-30 | 2015-12-09 | 攀钢集团江油长城特殊钢有限公司 | High-strength high-temperature alloy rod cold-drawing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545587A (en) * | 2020-05-14 | 2020-08-18 | 南京雄豹精密机械有限公司 | Machining method for lower die of bending machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |