CN102343376A - Strongly- lubricant floating plug and manufacturing method thereof - Google Patents
Strongly- lubricant floating plug and manufacturing method thereof Download PDFInfo
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- CN102343376A CN102343376A CN2011102281576A CN201110228157A CN102343376A CN 102343376 A CN102343376 A CN 102343376A CN 2011102281576 A CN2011102281576 A CN 2011102281576A CN 201110228157 A CN201110228157 A CN 201110228157A CN 102343376 A CN102343376 A CN 102343376A
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- shoe cream
- cream room
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- lubricant
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Abstract
The invention discloses a strongly- lubricant floating plug and a manufacturing method thereof, and the strongly- lubricant floating plug comprises a plug with an oil storage chamber, and a connecting rod; the plug comprises a working body and a lubricating body; the oil storage chamber is disposed inside the lubricating body; one end of the working body is provided with a step head which is in interference fit to the chamber wall of the oil storage chamber. During manufacturing, the interference fit between the working body and the lubricating body is realized by a principle of expansion on heating and contraction on cooling; the process is easy to realize, and the processing cost is low.
Description
Technical field
The present invention relates to a kind of lubrication floating core head and preparation method thereof, belong to stress metal die for processing design and manufacturing technology field.
Background technology
The inner core that moves about mainly is to be used for drawing copper pipe, steel pipe; It generally all with pipe drawing-die (claiming external mold, stretching die again) supporting use; Floating core head is unfixing in pipe fitting, and the reaction force through with the frictional force of tube wall and pipe fitting distortion the time reaches a poised state, the inner core so title moves about.As shown in Figure 1, traditional floating core head mainly is made up of two parts, comprises core print 02 and connecting rod 01; Core print 02 cooperates formation tubing deformed area with the pipe drawing-die; Connecting rod 02 is used for cylinder lever connecting rod, in the tube-drawing process, utilizes pull bar that core print is sent into the tubing deformed area; Main working region concentrates on the first half of core print, and for satisfying hardness and wearability requirement, thereby its material adopts YG8 or T8A usually, and whole cost is higher.The patent No. of being applied for before the applicant is " 201020208865.4 "; It is total that the patent that name is called " a kind of novel strong lubrication floating core head assembly " discloses the floating core head that has lubricating cavity; Solved the technical problem of existing floating core head lubricant effect difference; But the core print of floating core head part still is an overall structure; Be initial stage processing or later stage to repair all inconveniences, and cost is too high.
Summary of the invention
Problem to be solved by this invention just provides a kind of strong lubrication floating core head and preparation method thereof, and the strong lubrication floating core head greasy property is good, and cost of manufacture is low, processing, easy to maintenance.
For solving the problems of the technologies described above; The present invention adopts following technical scheme: a kind of strong lubrication floating core head; Comprise the core print and the connecting rod that have shoe cream room; It is characterized in that: said core print is made up of working body and lubricant body; Said shoe cream room is arranged in the lubricant body, and said working body one end is provided with the step head with shoe cream room chamber wall interference fit.
Further, the magnitude of interference between said step head and the shoe cream room chamber wall is 2～5 ‰ of a step head diameter.
Further, the length of said step head built-in length shoe cream room is 4～6mm.
Further, the roughness Ra behind the said working body surfacing is 0.20 μ m～0.80 μ m.
Further, said working body is processed by YG6 or YG6X carbide alloy.Have good hardness and wearability.
Further, said lubricant body is processed by 45 steel, reduces cost.
The invention allows for the preparation method of above-mentioned strong lubrication floating core head, it is characterized in that comprising the steps:
1) grinding working body, and process the step head at working body one end;
2) Vehicle Processing lubricant body, and car goes out shoe cream room in lubricant body;
3) Vehicle Processing connecting rod, and with in its shoe cream room of packing into;
4) the chamber wall of heating shoe cream room one end, and the step head of working body one end inserted the fire end of shoe cream room, the step head interference with working body after the fire end shrinkage of shoe cream room connects as one.
Beneficial effect of the present invention:
1, core print is divided into working body and lubricant body two parts, working body mainly bears the tube-drawing active force, can adopt hardness, wearabilities such as YG6 or YG6X carbide alloy preferably material process; Lubricant body mainly provides lubricating oil, the frictional force during with the reduction tube-drawing, and employing 45 steel is cheaply processed; This two parts interference fit connects, and has not only kept the good service behaviour of original strong lubrication floating core head, and easy to process, cost of manufacture is low;
When 2, making, adopt principle of expanding with heat and contracting with cold to realize the interference fit of working body and lubricant body, technology is easy to realize that processing cost is low.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explanation:
Fig. 1 is the structural representation of traditional floating core head;
Fig. 2 is a structural representation of the present invention.
The specific embodiment
With reference to Fig. 2; A kind of strong lubrication floating core head improves structure, comprises the core print and the connecting rod 1 that have shoe cream room 21, and said core print is made up of working body 3 and lubricant body 2; Said shoe cream room 21 is arranged in the lubricant body 2, and said working body 3 one ends are provided with the step head 31 with shoe cream room 21 chamber wall interference fit.The mode that realizes interference fit can be to adopt special tool(s) that step head 31 is compressed into shoe cream room 21; Or the characteristic of utilizing rising-heat contracting-cold makes step head 31 and shoe cream room 21 the two close-fitting; The magnitude of interference between step head 31 and the shoe cream room 21 chamber walls is 2～5 ‰ of step head 31 diameters; The length of step head 31 built-in length shoe cream rooms 21 is 4～6mm; Though step head 31 length lengthening can improve bonding strength; But the corresponding raising of cost; The too short stability that then can reduce interference fit of step head 31 length; Select for use the long step head 31 of 4～6mm can satisfy the interference fit requirement, can control processing cost again.Because of working body 3 mainly bears the tube-drawing active force, need to adopt hardness, wearability material grindings preferably such as YG6 or YG6X carbide alloy to process; Lubricant body 2 mainly provides lubricating oil, and the frictional force during with the reduction tube-drawing adopts 45 steel Vehicle Processings cheaply to form.
During making, at first the grinding working body 3, and process step head 31 at working body 3 one ends; Next Vehicle Processing lubricant body 2, and car goes out shoe cream room 21 in lubricant body 2; The Vehicle Processing connecting rod 1 again, and with in its shoe cream room 21 of packing into; At last with the chamber wall of 500 ℃～750 ℃ temperature heating shoe cream room 21 1 ends, and the fire end that the step head 31 of working body 3 one ends is inserted shoe cream rooms 21, step head 31 interference with working body 3 after the fire end shrinkage of shoe cream room 21 connect as one.Roughness Ra behind working body 3 surfacings should remain on 0.20 μ m～0.80 μ m.
Claims (7)
1. strong lubrication floating core head; Comprise the core print and the connecting rod (1) that have shoe cream room (21); It is characterized in that: said core print is made up of working body (3) and lubricant body (2); Said shoe cream room (21) is arranged in the lubricant body (2), and said working body (3) one ends are provided with the step head (31) with shoe cream room (21) chamber wall interference fit.
2. a kind of strong lubrication floating core head according to claim 1 is characterized in that: the magnitude of interference between said step head (31) and shoe cream room (21) the chamber wall is 2～5 ‰ of step head (a 31) diameter.
3. a kind of strong lubrication floating core head according to claim 1 and 2 is characterized in that: the length of said step head (31) built-in length shoe cream room (21) is 4～6mm.
4. a kind of strong lubrication floating core head according to claim 1 is characterized in that: the roughness Ra behind said working body (3) surfacing is 0.20 μ m～0.80 μ m.
5. a kind of strong lubrication floating core head according to claim 1 is characterized in that: said working body (3) is processed by YG6 or YG6X carbide alloy.
6. according to claim 1 or 5 described a kind of strong lubrication floating core heads, it is characterized in that: said lubricant body (2) is processed by 45 steel.
7. the preparation method of a strong lubrication floating core head is characterized in that comprising the steps:
1) grinding working body (3), and process step head (31) at working body (3) one ends;
2) Vehicle Processing lubricant body (2), and car goes out shoe cream room (21) in lubricant body (2);
3) Vehicle Processing connecting rod (1), and with in its shoe cream room of packing into (21);
4) the chamber wall of heating shoe cream room (21) one ends, and the step head (31) of working body (3) one ends inserted the fire end of shoe cream room (21), step head (31) interference with working body (3) after the fire end shrinkage of shoe cream room (21) connects as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228157.6A CN102343376B (en) | 2011-08-10 | 2011-08-10 | A kind of manufacture method of strong lubrication floating core head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110228157.6A CN102343376B (en) | 2011-08-10 | 2011-08-10 | A kind of manufacture method of strong lubrication floating core head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102343376A true CN102343376A (en) | 2012-02-08 |
| CN102343376B CN102343376B (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110228157.6A Active CN102343376B (en) | 2011-08-10 | 2011-08-10 | A kind of manufacture method of strong lubrication floating core head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760921A (en) * | 2020-07-09 | 2020-10-13 | 无锡隆达金属材料有限公司 | Accurate positioning device and method for wall thickness of copper-nickel alloy pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2359339A (en) * | 1943-12-24 | 1944-10-03 | Bridgeport Brass Co | Floating type mandrel for tube drawing |
| CN1947877A (en) * | 2006-11-03 | 2007-04-18 | 西北有色金属研究院 | Super thin wall type titanium tube mfg. method |
| CN101817026A (en) * | 2010-04-01 | 2010-09-01 | 浙江伦宝金属管业有限公司 | Core rod for drawing pipe |
| CN201735619U (en) * | 2010-05-31 | 2011-02-09 | 浙江海亮股份有限公司 | Novel excellent-lubricating moving core assembly |
| CN202238979U (en) * | 2011-08-10 | 2012-05-30 | 浙江海亮股份有限公司 | Improved structure of highly-lubricating floating core |
-
2011
- 2011-08-10 CN CN201110228157.6A patent/CN102343376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2359339A (en) * | 1943-12-24 | 1944-10-03 | Bridgeport Brass Co | Floating type mandrel for tube drawing |
| CN1947877A (en) * | 2006-11-03 | 2007-04-18 | 西北有色金属研究院 | Super thin wall type titanium tube mfg. method |
| CN101817026A (en) * | 2010-04-01 | 2010-09-01 | 浙江伦宝金属管业有限公司 | Core rod for drawing pipe |
| CN201735619U (en) * | 2010-05-31 | 2011-02-09 | 浙江海亮股份有限公司 | Novel excellent-lubricating moving core assembly |
| CN202238979U (en) * | 2011-08-10 | 2012-05-30 | 浙江海亮股份有限公司 | Improved structure of highly-lubricating floating core |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111760921A (en) * | 2020-07-09 | 2020-10-13 | 无锡隆达金属材料有限公司 | Accurate positioning device and method for wall thickness of copper-nickel alloy pipe |
| CN111760921B (en) * | 2020-07-09 | 2022-03-15 | 江苏隆达超合金股份有限公司 | Accurate positioning device and method for wall thickness of copper-nickel alloy pipe |
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| Publication number | Publication date |
|---|---|
| CN102343376B (en) | 2016-08-03 |
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