CN101905254A - Blanking method of sector plate blanks - Google Patents
Blanking method of sector plate blanks Download PDFInfo
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- CN101905254A CN101905254A CN 201010228103 CN201010228103A CN101905254A CN 101905254 A CN101905254 A CN 101905254A CN 201010228103 CN201010228103 CN 201010228103 CN 201010228103 A CN201010228103 A CN 201010228103A CN 101905254 A CN101905254 A CN 101905254A
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- circular cylinder
- section bar
- hollow circular
- cylinder section
- sector plate
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Abstract
The invention provides a blanking method of sector plate blanks. The outer profile dimensions of the cross section of the sector plate are as follows: the outer arc radius is r; the outer arc angle is theta more than 90 degrees; and the maximum radial thickness is t. The method is characterized by firstly manufacturing hollow cylindrical section with exradius R being more than or equal to the value shown in the specification, wherein r is the outer arc radius of the cross section of the sector plate and alpha is equal to (theta-90 degrees)/2, and the wall thickness of the hollow cylindrical section is more than or equal to the maximum radial thickness t of the cross section of the sector plate; and then cutting the hollow cylindrical section along the axial direction of the section to divide the circumference of the section into four equal parts. The invention provides the method characterized by cutting four sector plate blanks with arc angles being more than 90 degrees on the same hollow cylindrical section, without interference, thus saving the raw materials, improving the production efficiency and lowering the production cost.
Description
Technical field
The invention belongs to the mechanical processing technique technical field, relate to the processing technology of fanning strip (also claiming " the secter pat ") blank of being with steel uncoiler or power reel to use in the metallurgical machinery, relate in particular to a kind of blanking method of sector plate blanks.This blanking method can be realized being split into four arc chord angles greater than 90 ° sector plate blanks by a hollow circular cylinder section bar.
Background technology
Along with the fast development of national metallurgy industry, band steel production shared ratio in the iron and steel total amount is increasing.Band steel production equipment comprises cold rolling of strip steel, hot strip rolling, band steel cold-tandem rolling, hot strip rolling, belt steel flating, pickling, zinc-plated, zinc-plated, rewinding, crosscut, rip cutting or the like band steel production and finishing unit.Power reel occupies very important position to material loading board device as the output strip line indispensability---band steel uncoiler and blanking plate equipment---in unit equipment.And one of vitals is exactly a mandrel in uncoiler and the coiling machine.Be assembled with four fanning strips on the general mandrel, mandrel is very high to the fanning strip installation requirement, and four fanning strips that not only require to assemble have same proper circle, and require mandrel harmomegathus synchronous.This just requires us to begin from blank will strict control of quality, will minimize cost in addition.
The fanning strip front view of Fig. 1 for installing on uncoiler or the coiling machine mandrel, Fig. 2 is the H-H cutaway view of Fig. 1.As can be seen, fanning strip is actually the structural member that a kind of cross section is a circular arc from Fig. 1 and Fig. 2, and the outer profile size of fanning strip cross section generally is: outer arc radius is r; The cylindrical arc angle is θ, and θ is greater than 90 °; Radially maximum ga(u)ge is t.
At present, common sector plate blanks blanking as shown in Figure 3, is on a hollow circular cylinder section bar 1, goes out three blocks of fanning strip 2 blanks by the cutting subdivision.It is r that the exradius R of hollow circular cylinder section bar equals the fanning strip outer arc radius, and the wall thickness of hollow circular cylinder section bar equals the radially maximum ga(u)ge t of fanning strip.Although this blanking method simple possible, the maximum deficiency that exists is exactly a waste material, and adding up this method blank utilization rate according to routine is 67%, produces no advantage in batches.In addition, owing to need four fanning strip assemblings to constitute same proper circle on the mandrel, and going out three sector plate blanks, hollow circular cylinder section bar on subdivision also is unfavorable for controlling quality, if on identical hollow circular cylinder section bar 1, subdivision goes out four blocks of fanning strip 2 blanks, because the cylindrical arc angle θ of every block of fanning strip 2 blanks the phenomenon that interferes with each other shown in Figure 4 then can occur all greater than 90 °, be that the both ends of each fanning strip 2 blank intersect mutually and produce interference part 3, can't finish blanking.
In sum, how can accomplish not only to save material but also do not interfere, and finally can be on same hollow circular cylinder section bar subdivision to go out four sector plate blanks are problems that the present invention need solve.
Summary of the invention
The invention provides a kind of blanking method of sector plate blanks, be intended to seek on same hollow circular cylinder section bar subdivision and go out four arc chord angles greater than 90 ° sector plate blanks, and don't the method that interferes, to save material, enhance productivity, reduce production costs.
For achieving the above object, the technical solution used in the present invention is: a kind of blanking method of sector plate blanks, suppose that the outer profile size of fanning strip cross section requires as follows:
I. outer arc radius is r;
Ii. the cylindrical arc angle is θ, and θ is greater than 90 °;
Iii. radially maximum ga(u)ge is t;
The first step is made the hollow circular cylinder section bar, the exradius R of this hollow circular cylinder section bar more than or equal to
Value, r is the outer arc radius of fanning strip cross section in the formula, α equals the value of (θ-90 °) ÷ 2, α is greater than zero degree; The wall thickness of hollow circular cylinder section bar is more than or equal to the radially maximum ga(u)ge t of fanning strip cross section;
Second step along axially cutting of hollow circular cylinder section bar, was divided into quarter with the circumference of hollow circular cylinder section bar, constituted by a hollow circular cylinder section bar with this to be split into four arc chord angles greater than 90 ° sector plate blanks.
1. in the such scheme, the exradius R of described hollow circular cylinder section bar equals
Value with circumferential allowance and cylindrical circular arc allowance sum, the wall thickness of hollow circular cylinder section bar equals the allowance sum of the radially maximum ga(u)ge t and the radial thickness of fanning strip cross section.Described circumferential allowance refers to the allowance at the two ends on the sector plate blanks length direction.Wherein all allowance all require to reserve according to processing technology.In the blanking process, the hollow circular cylinder section bar under this size can improve utilization ratio of raw materials greatly, reduces the waste of raw material, and utilization ratio of raw materials reached and was 81% to the maximum this moment.
2. in the such scheme, the cross section of described fanning strip is meant as shown in Figure 1, perpendicular to cross section axial among the figure.
Because the technique scheme utilization, the present invention compared with prior art has following advantage and effect:
1, the employing of the inventive method, guaranteed that on same hollow circular cylinder section bar subdivision goes out four arc chord angles greater than 90 ° sector plate blanks, and don't interfere, guaranteed that promptly the fanning strip cylindrical of these four fanning strips constitutes same proper circle, thereby improved the machining accuracy of fanning strip.
2, the employing of the inventive method has improved the operating efficiency of fanning strip processing greatly, makes the utilization rate of former material base can bring up to 81% simultaneously, greatly reduces production cost.
Description of drawings
The fanning strip front view of accompanying drawing 1 for installing on uncoiler or the coiling machine mandrel;
Accompanying drawing 2 is that the H-H of Fig. 1 is to cutaway view;
Accompanying drawing 3 is the schematic cross-section of three fanning strips of while blanking on the material base of existing blanking method Central Plains;
Accompanying drawing 4 is the schematic cross-section of four fanning strips of while blanking on the material base of existing blanking method Central Plains;
Accompanying drawing 5 is the inventive method schematic cross-section;
Accompanying drawing 6 is a best mode schematic cross-section in the inventive method.
In the above accompanying drawing: 1, hollow circular cylinder section bar; 2, fanning strip; 3, interference part.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment:
As shown in Figure 5, a kind of blanking method of sector plate blanks, suppose that the outer profile size of fanning strip 2 cross sections requires as follows: the i. outer arc radius is r; Ii. the cylindrical arc angle is θ, and θ is greater than 90 °; Iii. radially maximum ga(u)ge is t.
The step of its blanking method is:
The first step is made hollow circular cylinder section bar 1, the exradius R of this hollow circular cylinder section bar 1 more than or equal to
Value, r is the outer arc radius of fanning strip 2 cross sections in the formula, α equals the value of (θ-90 °) ÷ 2, α is greater than zero degree; The wall thickness of hollow circular cylinder section bar 1 is more than or equal to the radially maximum ga(u)ge t of fanning strip 2 cross sections;
Second step along axially cutting of hollow circular cylinder section bar 1, was divided into quarter with the circumference of hollow circular cylinder section bar 1, constituted by a hollow circular cylinder section bar 1 with this to be split into four arc chord angles greater than 90 ° fanning strip 2 blanks.
As shown in Figure 6, the exradius R of described hollow circular cylinder section bar 1 equals
Value with circumferential allowance and cylindrical circular arc allowance sum, the wall thickness of hollow circular cylinder section bar 1 equals the allowance sum of the radially maximum ga(u)ge t and the radial thickness of fanning strip 2 cross sections.Described circumferential allowance refers to the allowance at the two ends on the sector plate blanks length direction.Wherein all allowance all require to reserve according to processing technology.
As shown in Figure 6, the β that supposes=45 °, then the exradius R of hollow circular cylinder section bar 1 is:
In the blanking process, select the hollow circular cylinder section bar 1 of this size and reserve allowance by the processing technology requirement simultaneously, then can improve utilization ratio of raw materials greatly, reduce the waste of raw material, add up according to routine, this method utilization ratio of raw materials this moment reaches and is 81% to the maximum, greatly reduces production cost.
The employing of the inventive method, guaranteed that on same hollow circular cylinder section bar subdivision goes out four arc chord angles greater than 90 ° sector plate blanks, and don't interfere, the fanning strip cylindrical that has promptly guaranteed these four fanning strips constitutes same proper circle, thereby improved the machining accuracy of fanning strip, improved production efficiency simultaneously.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the blanking method of a sector plate blanks, suppose that the outer profile size of fanning strip (2) cross section requires as follows:
I. outer arc radius is r;
Ii. the cylindrical arc angle is θ, and θ is greater than 90 °;
Iii. radially maximum ga(u)ge is t;
It is characterized in that:
The first step is made the hollow circular cylinder section bar, the exradius R of this hollow circular cylinder section bar (1) more than or equal to
Value, r is the outer arc radius of fanning strip (2) cross section in the formula, α equals the value of (θ-90 °) ÷ 2, α is greater than zero degree; The wall thickness of hollow circular cylinder section bar (1) is more than or equal to the radially maximum ga(u)ge t of fanning strip (2) cross section;
Second step along axially cutting of hollow circular cylinder section bar (1), was divided into quarter with the circumference of hollow circular cylinder section bar (1), constituted by a hollow circular cylinder section bar (1) with this to be split into four arc chord angles greater than 90 ° fanning strip (2) blank.
2. the blanking method of sector plate blanks according to claim 1, it is characterized in that: the exradius R of described hollow circular cylinder section bar (1) equals
Value with circumferential allowance and cylindrical circular arc allowance sum, the wall thickness of hollow circular cylinder section bar (1) equals the radially maximum ga(u)ge t of fanning strip (2) cross section and the allowance sum of radial thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102281035A CN101905254B (en) | 2010-07-16 | 2010-07-16 | Blanking method of sector plate blanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102281035A CN101905254B (en) | 2010-07-16 | 2010-07-16 | Blanking method of sector plate blanks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101905254A true CN101905254A (en) | 2010-12-08 |
| CN101905254B CN101905254B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102281035A Expired - Fee Related CN101905254B (en) | 2010-07-16 | 2010-07-16 | Blanking method of sector plate blanks |
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| Country | Link |
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| CN (1) | CN101905254B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397967A (en) * | 2011-11-15 | 2012-04-04 | 中冶陕压重工设备有限公司 | Forging preparation method for a sector plate |
| CN112974930A (en) * | 2021-02-23 | 2021-06-18 | 宋志龙 | Cutting system and working method of blank plate of fan-shaped PCB |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076667A (en) * | 1993-01-17 | 1993-09-29 | 武汉钢铁(集团)公司 | The power reel reel |
| WO2004108316A1 (en) * | 2003-06-09 | 2004-12-16 | S.I.M.A.C. S.P.A. | Improved coil transfer winding plant for rolled-stock |
| CN101507987A (en) * | 2009-03-20 | 2009-08-19 | 武汉钢铁(集团)公司 | Method for increasing mandrel process precision of tension reel |
| EP2188075A1 (en) * | 2007-08-03 | 2010-05-26 | Danieli & C. Officine Meccaniche SpA | Tube coiling/decoiling machine and relative process |
-
2010
- 2010-07-16 CN CN2010102281035A patent/CN101905254B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076667A (en) * | 1993-01-17 | 1993-09-29 | 武汉钢铁(集团)公司 | The power reel reel |
| WO2004108316A1 (en) * | 2003-06-09 | 2004-12-16 | S.I.M.A.C. S.P.A. | Improved coil transfer winding plant for rolled-stock |
| EP2188075A1 (en) * | 2007-08-03 | 2010-05-26 | Danieli & C. Officine Meccaniche SpA | Tube coiling/decoiling machine and relative process |
| CN101507987A (en) * | 2009-03-20 | 2009-08-19 | 武汉钢铁(集团)公司 | Method for increasing mandrel process precision of tension reel |
Non-Patent Citations (2)
| Title |
|---|
| 《机械》 20081125 田宏霞等 卷取机中扇形板加工工艺的改进 , 第11期 2 * |
| 《江苏冶金》 20071215 樊邦人 开卷取机扇形板功能及关键工艺分析 , 第06期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397967A (en) * | 2011-11-15 | 2012-04-04 | 中冶陕压重工设备有限公司 | Forging preparation method for a sector plate |
| CN112974930A (en) * | 2021-02-23 | 2021-06-18 | 宋志龙 | Cutting system and working method of blank plate of fan-shaped PCB |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101905254B (en) | 2012-06-27 |
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Granted publication date: 20120627 Termination date: 20160716 |