CN1179373A - Method for processing small precise flat parts - Google Patents
Method for processing small precise flat parts Download PDFInfo
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- CN1179373A CN1179373A CN 97106102 CN97106102A CN1179373A CN 1179373 A CN1179373 A CN 1179373A CN 97106102 CN97106102 CN 97106102 CN 97106102 A CN97106102 A CN 97106102A CN 1179373 A CN1179373 A CN 1179373A
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- processing method
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- polishing
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A method for manufacturing small precise plate parts includes such technological steps as direct cold rolling of raw material to reach its technical specifications about thickness and allowable tolerance, blanking, shaping machining, heat treatment, cleaning and polishing, and features high size precision, low surficial roughness, improved metallurgical structure on surface of workpiece, very high productivity and low cost.
Description
The present invention relates to a kind of processing method of metal machine components.
Often run into the flat parts of some sizes and little (for example boundary dimensions is not more than 40mm) in the frame for movement, and that its gauge tolerance requires is very accurate, surface roughness requires very strict, especially hardness requires very high or material is very special (for example stainless steel), it is reported that common processing method is both at home and abroad:
A, the raw material sheet material stamping-out that will leave 0.10-0.50mm allowance are shaped;
B, carry out other molding equipment tool processing (for example boring aperture etc.);
C, heat treatment reach the hardness requirement;
D, deburring;
E, surface grinding machine carry out double-side grinding to dimensional tolerance.
Because accessory size is little, thin thickness, poor rigidity, the common plane grinder chuck is inhaled incessantly, and must put a small-sized fine groove sucker on the lathe sucker in addition could process, and stays the mill amount very big, and cutting depth and feed are very little during grinding, otherwise easily go out waste product, even accidents happened, cause working (machining) efficiency extremely low, production cost is high, also wasted many energy, material and abrasive material, not doing a good job to cause that also piece surface hardness descends or flexural deformation, and this is a consistent difficult problem of generally acknowledging in the machining.
Task of the present invention provides a kind of processing method of small precise flat machine components, can improve working (machining) efficiency significantly, reduces consuming and cost significantly, and improves the surface quality of part effectively.
In order to finish above-mentioned task, the inventor has done a large amount of tests, and following process is adopted in decision:
A, with gauge, precision and the surface roughness of raw material direct cold rolling to drawing regulation;
The shape and size that b, stamping-out are stipulated to drawing;
C, carry out the other molding equipment tool processing that blank operation can't finish (for example bore can't stamping-out aperture etc.);
D, protectiveness are heat-treated to required hardness;
E, cleaning polishing are to finished product.
Test shows, conscientiously adjust the roll slit of finishing mill, after the sheet metal of roughing is cold-rolled to thin plate again, its gauge precision reaches 0.005mm with interior not difficult, to roll for mill the part thickness dimensional accuracy is guaranteed, and the size basically identical, surface roughness can reach in the Ra0.16, the two sides parallelism error approaches zero, especially can improve the metallographic structure of piece surface effectively, improves the part durability.During the mould stamping-out, not only can obtain size, shape accurately, key elements such as breach, aperture also can once be gone out, and the key element that can't go out is replenished machining more really.Heat treatment belongs to electric furnace GPF (General Protection False technology, can't destroy the finish rolling quality of part.And last cleaning polishing operation can be removed the surperficial dirt that burr on the part and heat treatment cause effectively, and this operation can be finished by hand, but the most handy cylinder finishes, and once can process several ten thousand.Maximum tens of past grinding part, grind more than half an hour, cancelled the plain grinding operation now, only with the foundation of stamping-out as production efficiencies calculated, can rush to ten thousand in one hour, work efficiency improves thousands of times, a large amount of energy, raw material and abrasive material have also been saved, in addition, for some special materials that is difficult to grinding, adopt this technology also just to be readily solved.
The inventor is with a kind of embodiment that is processed as that cuts accurate edge bearing sheet on the crystal multi-cutting machine bed that silicon chip uses.
This workpiece material is the T10 steel, the limit exterior feature is of a size of 12 * 22mm or two kinds of square shape sheet shapes of 12 * 25mm, and gauge t is by 0.45mm to 10mm plurality of specifications (based on less than 1mm person), and the dimensional tolerance of t is ± 0.005mm, surface roughness requires Ra0.4, hardness HRc58-62.It is reported that adopt at present both at home and abroad this paper to start the way processing of double-side grinding behind the stamping-out of introduction, efficient is extremely low always, the percent defective height so processing cost is always high, is used processing method of the present invention instead now:
A, the T10 steel plate (band) of outsourcing is reserved the finish rolling surplus, drop into the finishing mill direct cold rolling to thickness t ± 0.005 size, surface roughness can reach Ra0.16 with interior minute surface degree;
B, on punch press, become the wide shape and size in 12 * 22mm or 12 * 25mm limit, connect key element such as aperture for thin part and all can once go out with the mould stamping-out;
C, bigger for gauge is difficult for the aperture of punching out, changes on the drilling machine and processes;
D, RCW guipure resistance furnace, GPF (General Protection False processing quenching hot in nature and tempering HRc58-62;
E, cylinder clean polishing and are machined to finished product.
Owing to adopted the approaching outsourcing T10 steel plate of gauge to make raw material, saved roughing and half finish rolling operation, can further reduce manufacturing cost.In the cylinder manufacturing procedure, can also further improve, comprise:
A, earlier the part input is polished machine (in the cylinder a kind of) and remove its surperficial dirt and burr;
B, put into cylinder, add debris material (for example paper scrap, broken the end of a thread, wood chip etc.) and make medium and roll, the cleaning agent that part is infected with in polishing machine is wiped;
Add onal leather bits in c, the cylinder and do the medium rolling, piece surface is polished.
The flat parts gauge unanimity that processes like this, reach the tolerance of drawing regulation fully, in the surface roughness Ra 0.16, hardness is also qualified, surface quality is significantly improved during than grinding, especially working (machining) efficiency can improve thousands of times, and production cost significantly reduces, and the energy, raw material and abrasive material etc. consume significantly and reduce.
Claims (4)
1, a kind of processing method of small precise flat parts is characterized in that:
A, with gauge, precision and the surface roughness of raw material direct cold rolling to drawing regulation;
The shape and size that b, stamping-out are stipulated to drawing;
C, carry out the other molding equipment tool processing that blank operation can't finish;
D, protectiveness are heat-treated to required hardness;
E, cleaning polishing are to finished product.
2, processing method according to claim 1 is characterized in that said cold rolling preceding raw material are meant outsourcing cold-rolled steel sheet (band).
3, processing method according to claim 1 and 2 is characterized in that said cleaning polishing operation adopts the cylinder processing method to finish.
4, processing method according to claim 3 is characterized in that comprising in the cylinder manufacturing procedure:
A, elder generation polish machine with the part input and remove its surperficial dirt and burr;
B, put into cylinder, add the debris material and make medium and roll, the cleaning agent that part is infected with in polishing machine is wiped;
Add the leather chip in c, the cylinder and do the medium rolling, piece surface is polished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106102A CN1057484C (en) | 1997-09-17 | 1997-09-17 | Method for processing small precise flat parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97106102A CN1057484C (en) | 1997-09-17 | 1997-09-17 | Method for processing small precise flat parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1179373A true CN1179373A (en) | 1998-04-22 |
| CN1057484C CN1057484C (en) | 2000-10-18 |
Family
ID=5168375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97106102A Expired - Fee Related CN1057484C (en) | 1997-09-17 | 1997-09-17 | Method for processing small precise flat parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057484C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294576A (en) * | 2011-08-25 | 2011-12-28 | 张家港市力达机电有限公司 | Production process of fully-automatic flat knitting machine inserting sheet |
| CN102310315A (en) * | 2011-08-02 | 2012-01-11 | 东阳市金艺科技有限公司 | Flat machine cam processing technology |
| CN102501032A (en) * | 2011-12-02 | 2012-06-20 | 安徽华东光电技术研究所 | Manufacturing process of positioning elastic sheet of traveling wave tube electron gun system |
| CN102554586A (en) * | 2010-12-17 | 2012-07-11 | 上海无线电设备研究所 | Double-sided precision machining method for large-plane thin-walled parts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426580A (en) * | 1977-08-01 | 1979-02-28 | Sumitomo Bakelite Co Ltd | Method of machining surrounding of metal lining-laminated plate |
-
1997
- 1997-09-17 CN CN97106102A patent/CN1057484C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554586A (en) * | 2010-12-17 | 2012-07-11 | 上海无线电设备研究所 | Double-sided precision machining method for large-plane thin-walled parts |
| CN102554586B (en) * | 2010-12-17 | 2016-08-10 | 上海无线电设备研究所 | A kind of big two-sided precision machining method of flat thin wall pieces |
| CN102310315A (en) * | 2011-08-02 | 2012-01-11 | 东阳市金艺科技有限公司 | Flat machine cam processing technology |
| CN102310315B (en) * | 2011-08-02 | 2013-02-06 | 东阳市金艺科技有限公司 | Flat machine triangle processing technology |
| CN102294576A (en) * | 2011-08-25 | 2011-12-28 | 张家港市力达机电有限公司 | Production process of fully-automatic flat knitting machine inserting sheet |
| CN102294576B (en) * | 2011-08-25 | 2013-01-16 | 张家港市力达机电有限公司 | Production process of fully-automatic flat knitting machine inserting sheet |
| CN102501032A (en) * | 2011-12-02 | 2012-06-20 | 安徽华东光电技术研究所 | Manufacturing process of positioning elastic sheet of traveling wave tube electron gun system |
| CN102501032B (en) * | 2011-12-02 | 2014-01-08 | 安徽华东光电技术研究所 | Manufacturing process of positioning elastic sheet of traveling wave tube electron gun system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1057484C (en) | 2000-10-18 |
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Former decision: Restoration of patent right |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20001018 Termination date: 20110917 |