CN101890617A - Method for manufacturing precision pins by drawing seamless steel tubes - Google Patents
Method for manufacturing precision pins by drawing seamless steel tubes Download PDFInfo
- Publication number
- CN101890617A CN101890617A CN 201010195801 CN201010195801A CN101890617A CN 101890617 A CN101890617 A CN 101890617A CN 201010195801 CN201010195801 CN 201010195801 CN 201010195801 A CN201010195801 A CN 201010195801A CN 101890617 A CN101890617 A CN 101890617A
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- seamless steel
- pin
- steel tubes
- pins
- precision pins
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- Pistons, Piston Rings, And Cylinders (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a method for manufacturing precision pins by drawing seamless steel tubes. The method comprises the following steps: selecting seamless steel tubes; drawing and molding the seamless steel tubes; machining the semi-finished pins; polishing the excircle of the pin; performing vibration-polishing on the pins to remove the burrs from the pins and increase the finish of the pins; and cleaning the pins and soaking the pins in anti-rust oil. The invention has the advantages of simple technological procedures, low raw material cost and high production efficiency.
Description
Technical field
The present invention relates to a kind of machining process, relate in particular to a kind of method of utilizing drawing seamless steel tubes to make precision pins.
Background technology
The hollow pin workpiece of a kind of precision of machining,, require the machining accuracy height, its interior diameter precision ± 0.05mm, overall diameter precision ± 0.03mm.Traditional processing method is to be processed finished product or cut into required material section by solid bar, obtains required part by cold heading technique.This kind pin manufacture craft, cost of raw material height, the processing technology complexity, difficulty is big, and production efficiency is low.Be not suitable for producing in enormous quantities.
Thereby prior art awaits to improve and improve.
Summary of the invention
The object of the present invention is to provide a kind of cost of material low, processing technology is simple, precision height, the precision pins preparation method that production efficiency is high.。
Technical scheme of the present invention comprises:
A kind of method of utilizing drawing seamless steel tubes to make precision pins wherein, may further comprise the steps:
S1, choose the suitable class model seamless steel pipe as the processing raw material;
S2, with selected seamless steel pipe drawing moulding, the steel pipe interior diameter is identical with the pin interior diameter after the drawing;
S3, utilize feed formula machined into to become the semi-finished product pin, satisfy pin length, end face requirement;
S4, utilize centerless grinder to grind the pin cylindrical, satisfy pin outside dimension precision;
S5, utilization shake ray machine shake light are removed pin burr burr and are increased surface smoothness;
S6, immersion in liquid preventives oil.
The described method of utilizing drawing seamless steel tubes to make precision pins, wherein: described step S3 comprises following content:
A, front end face processing;
Rounded corner in B, the front end;
C, the outer rounded corner of front end;
Rounded corner in D, the back hook-type;
E, face of cylinder chamfering;
F, cut-out.
The described method of utilizing drawing seamless steel tubes to make precision pins, wherein: also comprise between described step S4 and the S5: clean pin with 5%C3011 solution.
The described method of utilizing drawing seamless steel tubes to make precision pins, wherein: also comprise step between described step S5 and the S6: clean drying.
The technique effect that the present invention produces is: adopt drawing seamless steel tubes to replace solid bar processing, the cost of raw material is low, has reduced bucket processing technology in the pin, has alleviated difficulty of processing, and technological process is simple, and production efficiency increases substantially.
Description of drawings
Fig. 1 makes the method process chart of precision pins for the present invention utilizes drawing seamless steel tubes;
Fig. 2 processes semi-finished product pin process chart for the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, illustrate that technological process of the present invention is as follows:
As shown in Figure 1, the present invention utilizes the method technological process of drawing seamless steel tubes making precision pins to be:
One, the seamless steel pipe of choosing the suitable class model is as the processing raw material, and the key element of choosing is pipe diameter, external diameter, material quality, hardness, draftability etc.
Two, with selected seamless steel pipe drawing moulding, the steel pipe interior diameter after the drawing is identical with the pin interior diameter;
Three, utilize feed formula machined into to become the semi-finished product pin, satisfy pin length, end face requirement;
This processing content comprises: rounded corner, face of cylinder chamfering, cut-out in rounded corner, the outer rounded corner of front end, the back hook-type in front end face processing, the front end.Cut off the back and become semi-finished product, outward appearance is similar to finished product.As shown in Figure 2.
Four, utilize centerless grinder to grind the pin cylindrical, satisfy pin outside dimension precision after the grinding.
Workpiece after the grinding enters subsequent processing after 5%C3011 solution cleans.
Five, utilize shake ray machine shake light, remove pin burr burr, and increase surface smoothness.This enters subsequent processing after cleaning dries.
Six, immersion in liquid preventives oil.
Finish to this manufacturing procedure, through being up to the standards precision pins workpiece packing warehouse-in.
In sum, the present invention adopts drawing seamless steel tubes to replace solid bar processing, and the cost of raw material is low, has reduced the pin processing technology for inner hole, has alleviated difficulty of processing, and technological process is simple, and the production efficiency height has been realized purpose of the present invention.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (4)
1. a method of utilizing drawing seamless steel tubes to make precision pins is characterized in that, may further comprise the steps:
S1, choose the suitable class model seamless steel pipe as the processing raw material;
S2, with selected seamless steel pipe drawing moulding, the steel pipe interior diameter is identical with the pin interior diameter after the drawing;
S3, utilize feed formula machined into to become the semi-finished product pin, satisfy pin length, end face requirement;
S4, utilize centerless grinder to grind the pin cylindrical, satisfy pin outside dimension precision;
S5, utilization shake ray machine shake light are removed pin burr burr and are increased surface smoothness;
S6, immersion in liquid preventives oil.
2. the method for utilizing drawing seamless steel tubes to make precision pins according to claim 1, it is characterized in that: described step S3 comprises following content:
A, front end face processing;
Rounded corner in B, the front end;
C, the outer rounded corner of front end;
Rounded corner in D, the back hook-type;
E, face of cylinder chamfering;
F, cut-out.
3. the method for utilizing drawing seamless steel tubes to make precision pins according to claim 1 is characterized in that: also comprise between described step S4 and the S5: clean pin with 5%C3011 solution.
4. the method for utilizing drawing seamless steel tubes to make precision pins according to claim 1 is characterized in that: also comprise step between described step S5 and the S6: clean drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010195801XA CN101890617B (en) | 2010-06-08 | 2010-06-08 | Method for manufacturing precision pins by drawing seamless steel tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010195801XA CN101890617B (en) | 2010-06-08 | 2010-06-08 | Method for manufacturing precision pins by drawing seamless steel tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101890617A true CN101890617A (en) | 2010-11-24 |
| CN101890617B CN101890617B (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010195801XA Expired - Fee Related CN101890617B (en) | 2010-06-08 | 2010-06-08 | Method for manufacturing precision pins by drawing seamless steel tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101890617B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581344A (en) * | 2011-01-18 | 2012-07-18 | 宝山钢铁股份有限公司 | Mould for processing small-lot straight-segment pins and processing method of small-lot straight-segment pins |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3743688A1 (en) * | 1986-12-25 | 1988-07-07 | Shinjo Seisakusho Yk | Method for producing an expanding part for driving in an expandable anchoring bolt |
| CN1068054A (en) * | 1991-06-28 | 1993-01-20 | 大连制钉厂 | Produce the process of cement nail and nailing with mild steel |
| JPH10328776A (en) * | 1997-05-30 | 1998-12-15 | Natl House Ind Co Ltd | Production of connected nail |
| US6234913B1 (en) * | 1999-05-31 | 2001-05-22 | Hilti Akteingesellschaft | Method of manufacturing of fastening elements |
| CN1425514A (en) * | 2001-12-14 | 2003-06-25 | 蒋大胜 | Cold upset stainless steel self-plugging rivet and producing method |
-
2010
- 2010-06-08 CN CN201010195801XA patent/CN101890617B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3743688A1 (en) * | 1986-12-25 | 1988-07-07 | Shinjo Seisakusho Yk | Method for producing an expanding part for driving in an expandable anchoring bolt |
| CN1068054A (en) * | 1991-06-28 | 1993-01-20 | 大连制钉厂 | Produce the process of cement nail and nailing with mild steel |
| JPH10328776A (en) * | 1997-05-30 | 1998-12-15 | Natl House Ind Co Ltd | Production of connected nail |
| US6234913B1 (en) * | 1999-05-31 | 2001-05-22 | Hilti Akteingesellschaft | Method of manufacturing of fastening elements |
| CN1425514A (en) * | 2001-12-14 | 2003-06-25 | 蒋大胜 | Cold upset stainless steel self-plugging rivet and producing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581344A (en) * | 2011-01-18 | 2012-07-18 | 宝山钢铁股份有限公司 | Mould for processing small-lot straight-segment pins and processing method of small-lot straight-segment pins |
| CN102581344B (en) * | 2011-01-18 | 2014-12-10 | 宝山钢铁股份有限公司 | Mould for processing small-lot straight-segment pins and processing method of small-lot straight-segment pins |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101890617B (en) | 2012-07-18 |
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Granted publication date: 20120718 |
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