CN102441601A - Substitution process and substitution die for blanking process and blanking die for crescent- and U-shaped blanking parts of thick steel plate - Google Patents
Substitution process and substitution die for blanking process and blanking die for crescent- and U-shaped blanking parts of thick steel plate Download PDFInfo
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- CN102441601A CN102441601A CN2010105073373A CN201010507337A CN102441601A CN 102441601 A CN102441601 A CN 102441601A CN 2010105073373 A CN2010105073373 A CN 2010105073373A CN 201010507337 A CN201010507337 A CN 201010507337A CN 102441601 A CN102441601 A CN 102441601A
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Abstract
The invention discloses a substitution process and a substitution die for a blanking process and a die for crescent- and U-shaped blanking parts of a thick steel plate, which belong to the technical field of metal cold pressing in machinery manufacture industry. The technical points of a technical scheme for solving the above technical problem are as follows: shearing the steel plate into straight bar steel plates with the required lengths and widths by using a plate shearing machine and the length directions of the straight bar steel plates are parallel to the rolling direction in the production of the steel plate; overlapping tens of the straight bar steel plates in order; placing the straight bar steel plates into a bent concave die (2) of a bent mould in a manner that the widths of the straight bar steel plates are vertical to a horizontal plane; enabling a compact die (14) in a bent upper die to automatically clamp all the straight bar steel plates along the two side surfaces of the straight bar straight plates overlapped together; and enabling a bent convex die (6) to bend the clamped straight bar steel plates to obtain parts with the same geometrical shapes and sizes as the blanking parts in the blanking process. The process disclosed by the invention is used for producing the crescent- and U-shaped blanking parts of the thick steel plate with low consumption, low cost, high quality and high efficiency.
Description
Affiliated technical field
The alternative techniques and the mould of crescent U-shaped steel plate blanking part blanking process and blanking die belong to the metal cool-press technical field in the machine industry.
Background technology
The cold stamping blanking part of steel plate " crescent " and " U-shaped " class all has been widely used in all kinds of machineries of machine industry.Like the generator regulating arm on the 6102Q Diesel engine; It is exactly the steel plate blanking part of " crescent "; Its material thickness is 6mm, and material is 65Mn, the geometry that its profile such as accompanying drawing 1 are represented; Be meniscate cold stamping blanking part, the centre has the slotted hole of adjusting or to adopt machining to accomplish with punching technology.According to the cold stamping blanking process of the routine of passing through both at home and abroad now, the technology clout scrap (bridge) of two adjacent parts during discharge, for choosing of edge-lapped value, recommending data all is in the reference book both domestic and external: material thickness multiply by and is greater than or equal to 1 coefficient.Therefore very low for the stock utilization of the blanking part shown in accompanying drawing 1; Again particularly for steel plate blanking part; The service life of its blanking die is very low, facts have proved: for present embodiment, material is 65Mn; Thickness is about 1900 of the service life of its blanking die of part shown in accompanying drawing 1 of 6mm, and mould has just thoroughly been scrapped; The mould share the expenses of blanking part is very high; The stock utilization of product is very low; For similar " crescent " and " U-shaped " blanking part, owing to form the directionality of metallic fiber in the steel plate production operation of rolling, the mechanical property difference of the diverse location of same part overall mechanical strength big, part is poor.About stock utilization, the projected area of this part is 14672.4 square millimeters in the accompanying drawing 1, calculates according to the The layout of accompanying drawing 2, and stock utilization is about 50%, so the stock utilization of " crescent " type blanking part is very low.Its material use is then lower for " U-shaped " type cold stamping blanking part; Its stock utilization of the part that has is less than 30%; Mould share the expenses for this type cold stamping blanking part is very high; Particularly the mechanical strength otherness for " U-shaped " type cold stamping blanking part diverse location in same part is bigger.Part shown in the accompanying drawing 1 is the generator regulating arm on the 6102Q diesel engine for automobile, and material is that 65Mn, thickness are 6mm, is exactly crescent blanking part, and stock utilization is about 50% during with the blanking die blanking of blanking process, and about 1900 of die life has just been scrapped.And it is discontinuous and influence mechanical strength along crescent U-shaped steel plate blanking part metallic fiber.
Summary of the invention
In order to overcome the deficiency of background technology, the present invention provides " alternative techniques and the mould of crescent U-shaped steel plate blanking process and blanking die ".Can use following three conditional definitions for defining of steel plate: 1, the thick wide ratio of part is greater than 0.2, and promptly the ratio of the width of the material thickness of blanking part and blanking part is greater than 0.2; 2, relative bending radius is greater than 0.2, and promptly the ratio of the inboard radius of curvature of crescent U-shaped blanking part and lateral curvature radius is greater than 0.2; 3, the absolute thickness of blanking part material is greater than 3.5mm.
The technical essential of the technical scheme that solves the problems of the technologies described above is: the vertical bar material that steel plate is cut into needed length and width with plate shearing machine; And the length direction of vertical bar material is parallel, promptly parallel with the length direction of steel plate rolling with the metallic fiber direction of formation in the steel plate production.With tens of of vertical bar steel plates according to neat the overlaping of thickness direction; Place it in the die of bending mould; And the width that makes the vertical bar steel plate is the placement perpendicular to horizontal plane; The bending patrix clamps whole vertical bar steel plates integral body along two sides of the vertical bar steel plate that overlaps automatically, and the bending punch carries out bending to the vertical bar steel plate that clamps, and obtains the geometry identical with the blanking part of blanking process and the part of size.The purposes of this invented technology is to substitute crescent U-shaped steel plate blanking process and blanking die, the high efficiency production crescent of low consumption U-shaped steel plate blanking part.This invention meets the requirement of the Scientific Outlook on Development of good and fast development, helps energy-saving and emission-reduction, development low-carbon economy, builds a resource-conserving and environment-friendly society.
The process route of the technical scheme of technology of the present invention is:
1, the center line according to the blanking part calculates length of run;
2, according to the width of the length of run of blanking part and blanking part, the molded breadth that on plate shearing machine, is cut into vertical bar material, vertical bar material be the blanking part width, but according to diastrophic relative radius of curvature; Be the ratio size of crooked part inner radius and crooked part outer radius, add the blanking width of a correction value for confirming;
3 and the length direction of vertical bar material parallel, promptly parallel that is parallel with the metallic fiber direction that forms during steel plate is produced with the steel plate length direction under the supply of material state with the length direction of steel plate rolling;
4, tens of of vertical bar steel plates is the neat overlapping width that together, makes single-piece vertical bar steel plate is perpendicular to horizontal plane;
5, tens of neat overlapping steel plates are placed on bending in the bending mould of automatic clamping device.And obtain the geometry identical and the part of size with the blanking part of blanking process.
6, with shearing die the two ends of crescent part are cut into semicircle after the bending.
The step on 7 pairs of accompanying drawing 1 left sides is pressed shape with the pressure-shaped mould tool.Even produce this cold stamping part with blanking process and blanking die, this road production process also must be arranged.
The present invention's's " alternative techniques and mould of crescent U-shaped steel plate blanking process and blanking die " beneficial effect is:
1, the stock utilization of crescent blanking part improves more than 99% by about 50%, and the stock utilization of " U-shaped " type blanking part improves more than 99% by 35%;
2, improve die life, bring up to more than 100,000 by about 1900; Be the mould share the expenses of the single products blanking die that is reduced to blanking process share the expenses 1%, the share the expenses 99% of promptly practicing thrift mould;
3, the metallic fiber of the part of employing explained hereafter of the present invention can effectively improve the mechanical strength of part along the length direction continuous distributed of part.
Description of drawings
Accompanying drawing 1 is the part drawing of crescent blanking part 6102Q diesel generator regulating arm.
Accompanying drawing 2 is discharge The layout that crescent blanking part calculates stock utilization.
Accompanying drawing 3 is the The layout of cutting out the vertical bar material with alternative techniques with plate shearing machine.
Accompanying drawing 4 is that the alternative mould in the alternative techniques is the structure chart of bending mould.
The specific embodiment
In conjunction with accompanying drawing technology of the present invention " alternative techniques and the mould of crescent U-shaped steel plate blanking process and blanking die " is described in detail as follows:
The statement that the technical essential of the technical scheme that solves the problems of the technologies described above is summarized is: steel plate is cut into the vertical bar material of needed length and width with plate shearing machine, and rolling length direction is parallel in the length direction of vertical bar material and the steel plate production.With tens of neat overlaping of vertical bar steel plate; And the width that makes the vertical bar steel plate is in the die that is placed on the bending mould (2) perpendicular to horizontal plane; Pressure die in the bending patrix (14) clamps whole vertical bar steel plates integral body along two sides of the vertical bar steel plate that overlaps automatically; Bending punch (6) carries out bending to the vertical bar steel plate that clamps, and obtains the geometry identical with the blanking part of blanking process and the part of size.
Accompanying drawing 1 is a crescent blanking part drawing, and it is a 6102Q diesel generator regulating arm, and its material thickness is 6mm, and its material is 65Mn.The horizontal projected area of single-piece is 14672.4mm2., because this material is harder thicker again, when producing with traditional blanking process blanking die, die life is about 1900, mould has just thoroughly been scrapped.
Accompanying drawing 2 is discharge The layout that crescent blanking part calculates stock utilization.By the design data that Specialized Theory and reference book provide, the stock utilization that the discharge The layout of the blanking part of having done calculates is about 50%
Accompanying drawing 3 is the The layout of cutting out the vertical bar material with alternative techniques with plate shearing machine.Its length is according to center line along its length the length of run of blanking part at its width; Molded breadth be the blanking part width, but according to diastrophic relative radius of curvature; Be the ratio size of outer radius of inner radius and the crooked part of crooked part, add the blanking width of a correction value for confirming.And the length of vertical bar material is parallel with steel plate rolling direction in process of production, promptly with supply of material state under the steel plate length direction parallel; Guarantee the length direction of the metallic fiber that metal forms like this in the operation of rolling; Consistent with the length direction of vertical bar steel plate down; Help like this avoiding and overcome in bending technology because the relative radius of curvature of bending part when smaller, crackle appears in lateral surface.The definition of relative radius of curvature is: the ratio of the bending radius in the bending radius that the bending part is inboard and the bending part outside.
Accompanying drawing 4 is that the alternative mould in the alternative techniques is the structure chart of bending mould.With tens of of vertical bar steel plates according in neat height that overlaps of thickness direction that is the bending mould by the width (X) of the vertical bar steel plate (10) of bending; Must be greater than more than 2 times of width (H) of original blanking part, make the width of original blanking part become bending technology by the thickness of tens of the vertical bar steel plates (10) that overlap of bending.And satisfy following condition: B+2t＞X >=B+t; B is that the width of bending die (2), thickness, the X that t is part material are that tens of vertical bar steel plates are according to the neat developed width that overlaps of thickness direction in the formula; Rather than the theoretic throat of material multiply by the product of overlapping number of packages, but the actual thickness of accurately measuring material multiply by the product of overlapping number of packages.Bending is carried out in tens of neat overlaping of vertical bar steel plate, one time how are how many parts of bending confirmed? Be to select equipment tonnage according to the size of design-calculated bending power, and according to conditional relationship formula: B+2t＞X >=B+t; Through calculating the width dimensions B of definite how many parts of bending and definite bending die (2).The geometry and the radius of curvature in the outside of the working curved surface of the die in the bending mould (2) and the blanking part of radius of curvature and blanking process match; And two sides two spring reset holes are arranged, support back-moving spring (18) and two tapped blind holes that contain screw (17).The bending patrix clamps the vertical bar steel plate integral body that overlaps along two sides automatically; Bending punch (6) carries out bending to the vertical bar steel plate that clamps; Its structure is: two automatic clamping dies (14) are connected through screw (13) with bending punch (6) and are fixed as one; And be fixed on the lower plane of press ram through upper bolster (7) and die shank (8), the geometry and the radius of curvature of the inboard of the geometry of bending punch (6) working face and the blanking part of radius of curvature and blanking process match.Structure about automatic clamping die (14) is: two clamping dies (14) are two sides that are fixed on the width of bending punch (6); Constitute uncovered flute profile; Its lower end is low wide and up narrow trapezoidal; Its upper end is perpendicular to the flute profile parallel to each other again of horizontal plane, the pressure die (16) of two rectangles and two L shaped width adjustment plates (15) is drawn close from the trend center, and compress tens of overlapping vertical bar steel plates.About L shaped width adjustment plates (15), its structural feature is: with the thickness that changes width adjustment plates (15), regulate compensation pressure die (16) and compress after some the vertical bar steel plates, the gap between pressure die (16) and the automatic clamping die (14).Making clamping die (14) is that just to clamp be again to hold enough tightly to pressure die (16).The structure of pressure die (16) is: two spring reset holes are arranged, support back-moving spring (18), and match with the coordinate position and the aperture in spring reset hole in the bending die (2).
Vertical bar steel plate (10) in accompanying drawing 4 front views is by the state C of complete bending forming---some the overlapping profile status of vertical bar steel plate (10) in the C view.Die shoe (1) is fixed on the press bench.Upper bolster (7), die shank (8), length locating piece (5), length adjustment piece (4), width spacing fast (15) is the spacing regulating block of width (16).Bending patrix (6) and upper bolster (7) die shank (8) fasten as one with press ram, and bending patrix (6) is depressed vertical bar steel plate (10) and its and bending die (2) are and compresses character comprehensively and contact to die and make overlapping vertical bar steel plate (10) bending when press ram is descending; Thereby obtain and the on all four crescent U-shaped of cold stamping blanking process blanking part profile steel plate bending part.
Vertical view in the accompanying drawing 4 is the vertical view that removes behind the bending patrix.Die shoe (1) is fixed on the press bench; Dovetail mount is arranged at the bottom of bending die (2), is fastened in the dovetail groove of die shoe (1) with wedge (19), notes loading onto bending counterdie longitudinal register pin (20) this moment.Vertical bar steel plate length limiting plate (5) and spacing adjustable plate (4) are fixed on screw (3) on two sides of length direction of bending die (2).Spacing adjustable plate (15), pressure strip (16) and compression spring (18), be connected with screw (17) in two sides of width of bending die (2), and spacing adjustable plate (15) can be inwardly outside mobile along screw (17) with pressure strip (16).Side clamping die (14) is fixed on the left and right sides of the width of bending punch (6) with screw (13), and there is the inclined-plane of outside opened with certain angle the lower end of clamping die (14), forms the big down little uncovered flute profile that.So that when slide block down; To work earlier side pressure die (16) and spacing adjustable plate (15) inwardly promotes and clamps, and makes it to compress earlier from the side by the overlapping vertical bar steel plate (10) of bending afterwards, and clamping die (14) is along with the bending punch still continues descending; Bending punch (6) carries out bending to vertical bar steel plate (10); Accomplish after the bending work, after the pressure die of left and right sides face (14) rises with bending punch (6) and slide block backhaul, under the active force of compression spring (18); Lateral surface compressing mould (16) and spacing adjustable plate (15) outwards unclamp along the left and right sides, and make the workpiece discharging behind the bending.Dovetail mount is arranged at the top of bending punch (6), with wedge (11) bending punch (6) is fastened in the dovetail groove of upper bolster (7), notes loading onto the longitudinal register pin (12) of bending punch (6) this moment.Die shank (8) is fixed in the center hole of upper bolster (7) with screw (9), die shank (8) and upper bolster (7) is fixed on the lower plane of slide block of forcing press, and practical implementation so far finishes.
Claims (9)
1. the alternative techniques and the mould of crescent U-shaped steel plate blanking part blanking process and blanking die; The technical scheme that solves the problems of the technologies described above is characterized in that: the vertical bar material that steel plate is cut into needed length and width with plate shearing machine; And the length direction of vertical bar material is parallel with the rolling direction during steel plate is produced; With tens of neat overlaping of vertical bar steel plate; And the width that makes the vertical bar steel plate is in the die that is placed on the bending mould (2) perpendicular to horizontal plane; Clamping die in the bending patrix (14) clamps whole vertical bar steel plates integral body along two sides of the vertical bar steel plate that overlaps automatically, and bending punch (6) carries out bending to the vertical bar steel plate that clamps, and obtains the geometry identical with the blanking part of blanking process and the part of physical dimension.
2. the vertical bar material of needed length according to claim 1 and width is characterized in that: length is that molded breadth is the width of blanking part according to the center line length of run along its length of blanking part at its width.
3. vertical bar material according to claim 1 is characterized in that: the metallic fiber direction of the length of vertical bar material and steel plate is parallel, promptly with the steel plate production process in rolling direction parallel that is parallel with the steel plate length direction under the supply of material state.
4. according to claim 1 with tens of neat overlaping of vertical bar steel plate; It is characterized in that: tens of of vertical bar steel plates are according to the neat height that overlaps of thickness direction; Must be greater than more than 2 times of width of original blanking part, make that the width of original blanking part is transformed into that tens of of bending technology neatly overlap perpendicular to horizontal plane by the thickness of the vertical bar steel plate of bending.
5. the die (2) in the bending mould according to claim 1; It is characterized in that: the geometry and the radius of curvature in the outside of the working curved surface of the die in the bending mould (2) and the blanking part of radius of curvature and blanking process match; And two sides 4 spring reset holes are arranged, support back-moving spring (18) and 4 tapped blind holes that contain screw (17).
6. bending patrix according to claim 1 clamps the vertical bar steel plate integral body that overlaps along two sides of width adjustment plates (15) automatically; Bending punch (6) carries out bending to the vertical bar steel plate (10) that clamps; It is characterized in that: automatically clamping die (14) is connected through screw (13) with bending punch (6) and is fixed as one; And be fixed on the lower plane of press ram through upper bolster (7) and die shank (8), the geometry and the radius of curvature of the inboard of the geometry of the working face of bending punch (6) and the blanking part of radius of curvature and blanking process match.
7. automatic clamping die according to claim 6 (14); It is characterized in that: two clamping dies (14), with screw (13); Be fixed on two sides of the width of bending punch (6), constitute outwards open low wide and up narrow uncovered flute profile, its upper end is perpendicular to the flute profile parallel to each other again of horizontal plane; Pressure die (16) and two L shaped width adjustment plates (15) of two rectangles are drawn close from the trend center, and clamp overlapping vertical bar steel plate (10) from two sides.
8. L shaped width adjustment plates according to claim 7 (15); It is characterized in that: with the thickness that changes width adjustment plates (15), regulate compensation pressure die (16) and compress after some the vertical bar steel plates; Gap between pressure die (16) and the automatic clamping die (14); It is satisfied under the condition of B+2t＞X >=B+t, and adjustable plate (15) is regulated compensation to the gap between pressure die (16) and the automatic clamping die (14).
9. pressure die according to claim 8 (16) is characterized in that: 4 spring reset holes are arranged, support back-moving spring (18), and match with the coordinate position and the aperture in spring reset hole in the bending die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105073373A CN102441601A (en) | 2010-10-15 | 2010-10-15 | Substitution process and substitution die for blanking process and blanking die for crescent- and U-shaped blanking parts of thick steel plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105073373A CN102441601A (en) | 2010-10-15 | 2010-10-15 | Substitution process and substitution die for blanking process and blanking die for crescent- and U-shaped blanking parts of thick steel plate |
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| CN102441601A true CN102441601A (en) | 2012-05-09 |
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| CN2010105073373A Pending CN102441601A (en) | 2010-10-15 | 2010-10-15 | Substitution process and substitution die for blanking process and blanking die for crescent- and U-shaped blanking parts of thick steel plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352769A (en) * | 2015-09-29 | 2016-02-24 | 武汉钢铁(集团)公司 | Excellent trimming quality tensile specimen preparation device and use method |
| CN114346053A (en) * | 2021-12-31 | 2022-04-15 | 安徽江淮福臻车体装备有限公司 | Multi-vehicle engine cover blanking die sharing method and blanking die |
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| SU567527A1 (en) * | 1974-02-22 | 1977-08-05 | Ershov Vladislav | Work bending method |
| CN1041549A (en) * | 1988-10-05 | 1990-04-25 | 索莱克公司 | Make forming sheet-metal blank, particularly make the method and apparatus of CRT shadow mask and the cathode-ray tube shadow mask that obtains of method thus |
| US20040159696A1 (en) * | 2003-02-18 | 2004-08-19 | Innovative Technology Licensing, Llc | Thick-section metal forming via friction stir processing |
| CN2680372Y (en) * | 2004-02-26 | 2005-02-23 | 北新建材(集团)有限公司 | C-shape cut mould structure |
| CN101073872A (en) * | 2006-05-19 | 2007-11-21 | 山崎马扎克公司 | Metal mould for plate bending apparatus and its manufacture |
| CN101745571A (en) * | 2010-02-05 | 2010-06-23 | 浙江黄岩冲模厂 | One-time molding process of multiple fan-shaped plates |
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2010
- 2010-10-15 CN CN2010105073373A patent/CN102441601A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU567527A1 (en) * | 1974-02-22 | 1977-08-05 | Ershov Vladislav | Work bending method |
| CN1041549A (en) * | 1988-10-05 | 1990-04-25 | 索莱克公司 | Make forming sheet-metal blank, particularly make the method and apparatus of CRT shadow mask and the cathode-ray tube shadow mask that obtains of method thus |
| US20040159696A1 (en) * | 2003-02-18 | 2004-08-19 | Innovative Technology Licensing, Llc | Thick-section metal forming via friction stir processing |
| CN2680372Y (en) * | 2004-02-26 | 2005-02-23 | 北新建材(集团)有限公司 | C-shape cut mould structure |
| CN101073872A (en) * | 2006-05-19 | 2007-11-21 | 山崎马扎克公司 | Metal mould for plate bending apparatus and its manufacture |
| CN101745571A (en) * | 2010-02-05 | 2010-06-23 | 浙江黄岩冲模厂 | One-time molding process of multiple fan-shaped plates |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352769A (en) * | 2015-09-29 | 2016-02-24 | 武汉钢铁(集团)公司 | Excellent trimming quality tensile specimen preparation device and use method |
| CN105352769B (en) * | 2015-09-29 | 2018-08-07 | 武汉钢铁有限公司 | A kind of tensile sample preparation facilities that trimming quality is excellent and application method |
| CN114346053A (en) * | 2021-12-31 | 2022-04-15 | 安徽江淮福臻车体装备有限公司 | Multi-vehicle engine cover blanking die sharing method and blanking die |
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Application publication date: 20120509 |