CN104148504A - Burr-free stamping method - Google Patents
Burr-free stamping method Download PDFInfo
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- CN104148504A CN104148504A CN201410407810.9A CN201410407810A CN104148504A CN 104148504 A CN104148504 A CN 104148504A CN 201410407810 A CN201410407810 A CN 201410407810A CN 104148504 A CN104148504 A CN 104148504A
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- area
- punching press
- drift
- fillet
- module
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Abstract
The invention provides a burr-free stamping method. A second area (the position of a product) of a material belt is extruded by a puncher pin of a stamping die, the second area is made to move downwards, the corner of the bottom of the second area bears pulling force to form a first circular bead, then the push-out portion of the stamping die is driven to move upwards, the push-out portion pushes out the second sunk area upwards, and the upper surface of the second area bears the pulling force of a first area (waste materials) of the material belt to form a second circular bead. The first circular bead and the second circular bead are formed through flowing of metal, the edge of a product can be effectively prevented from burrs, and especially when the requirement for the size precision of the product is high, market needs can be greatly met.
Description
Technical field
The present invention relates to a kind of Sheet Metal Forming Technology, relate in particular to a kind of method without burr punching press (negative clearance punching press, half-dozen drift does not enter die, and then with the mold insert of clapping, product is clapped in feed back band).
Background technology
The decompressor using in the market, mainly comprise on one module and module once, on upper module, be provided with drift and guide needle etc., during use, material strip is placed on lower module, then drive described drift to move downward, adopt the mode of blanking to go out a through hole or blanking material strip, the through hole that mode of this blanking forms and outline edge have one side to there will be a lot of limit thorns (burr), cause product bad, for above-mentioned situation, also having producer that the one side with limit thorn is clapped to C angle processes, adopt compression by limit thorn (burr) extruding, can this extruding certainly will will cause the inwall of through hole to form projection, be difficult to reach the requirement of high precision, especially when the size of the product that relate to hour, above dimensional requirement, be difficult to especially eligible, this way is difficult to make accurate product, be difficult to meet the demand in market.
Summary of the invention
The object of the invention is to overcome the defect of prior art, a kind of automation, the high-accuracy method without burr punching press are provided.
The present invention is achieved in that a kind of method without burr punching press, and it comprises:
(1) provide a diel, it has on one module and module once, on described upper module, is provided with drift and the mold insert of clapping, and is provided with the end, top, clap mold insert and die on described lower module;
(2) provide a material strip, on material strip, can be divided into first area and second area, material strip is placed on described lower module actively, make the lower surface of first area be connected to the end, top, and the end, top exceeds lower module upper surface 0.01～0.02mm;
(3) when upper module moves downward, drift also moves downward, drift extruding second area, the material of second area is moved downward, second area enters in die, the corner of second area base material will be subject to pulling force and form the first fillet, continue to drive drift to move downward, until the upper surface of second area is higher than the lower surface of described first area, the thickness of material strip 10%～40% time, the drift of upper module is return;
(4) when diel moves downward, the mold insert of clapping on lower module upwards ejects sagging second area material higher than first area, make the upper surface of second area higher than the upper surface 0.01～0.02mm of first area, the upper surface of second area is subject to first area pulling force while moving upward forms the second fillet, and product is still fixed in material strip.
Further, described first area and described second area have a virtual edge of a knife to exist.
Further, the distance that described second area declines is less than the thickness of material strip.
Further, described drift is greater than die size in the projection of vertical direction.
Further, after described the second fillet forms, there is a strip gap in the side of described second area and the side of described first area.
Further, after step (4), described second area comprises a main part, and the side of main part has a protuberance, the surface, mountain of described protuberance and the upper surface flush of described main part.
Further, the periphery of described protuberance has one second fillet, and described the second fillet to downward-extension, and intersects at the side of described protuberance from the upper surface of described protuberance.
Further, bottom surface downward-extension one base plate of described main part, the outward flange of described base plate is connected by the first fillet with the outward flange of described main part.
The invention provides a kind of method without burr punching press, drift extruding second area, described second area is moved downward, described second area enters in described die, the corner of described second area bottom will be subject to pulling force to form one first fillet, continue to drive drift to move downward, until the upper surface of second area higher than the lower surface of described first area the thickness of material strip 10%～40% time, patrix drift is return, drive lower station on the described lower module mold insert of clapping that sagging second area is upwards ejected higher than first area, make the upper surface of second area higher than the upper surface 0.01～0.02mm of first area, the upper surface of second area is subject to first area pulling force while moving upward forms the second fillet, mobile formation one first fillet and the second fillet by metal, particularly when the precision size degree of product is had relatively high expectations, can imitate again and prevent that burr from appearring in the edge of product, can greatly meet the demand in market.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic diagram of the sheet material that Fig. 1 provides for the embodiment of the present invention;
Schematic diagram after the plate stamping that Fig. 2 provides for the embodiment of the present invention;
The partial schematic diagram of Fig. 2 that Fig. 3 provides for the embodiment of the present invention;
Schematic diagram after the second area that Fig. 4 provides for the embodiment of the present invention is pushed up back;
The second area that Fig. 5 provides for the embodiment of the present invention is through the schematic diagram of punching press aftershaping;
The partial enlarged drawing of Fig. 5 that Fig. 6 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As Fig. 1 to Fig. 6, the embodiment of the present invention provides a kind of method without burr punching press, and it comprises the following steps.
The first step, one diel is provided, it has on one module and module once, on described upper module, is provided with drift, is provided with the end, top, clap mold insert and die on described lower module, described drift is that nonferrous materials is made, can move up and down and move with mould, at the bottom of described top, be tabular, described in the mold insert of clapping be also tabular, described ejection part also can move up and down, and described die is in order to hold the sheet material after punching press is sunk.
Second step, provide a material strip 1(sheet material), the sheet material (material strip) of take is below example, described sheet material 1 is metal and other hard plate material, on described sheet material, be provided with first area 11 and with a second area 12 of described first area 11 adjacency, described first area and described second area have a virtual edge of a knife to exist, described first area 11 and described second area 12 are arranged alternately, sheet material is active on described lower module, and complete, work continuously, at the bottom of making the lower surface of first area 11 be connected to described top, and the end, top, is higher than lower module, pushing up the end exceeds lower module upper surface 0.01～0.02mm, at the bottom of described top, be directly connected on described second area 12, prevent the stressed and bulk deformation of second area 12.
The 3rd step, drive described drift to move downward, drift extruding second area 12, the upper surface sizableness of the lower surface of drift and second area 12, described second area 12 is moved downward, the a part of material of described second area 12 enters in described die, 60%～90% of the thickness that the distance that described second area 12 declines is material strip.The corner of described second area 12 bottoms is by stressed formation one first fillet 124, the first fillet 124 sets to the concave, be smooth circular-arc, continue to drive drift to move downward, until the upper surface of second area 12 higher than the lower surface of described first area 11 when the thickness 10%～40% of material strip, and the upper surface of second area 12 is lower than the upper surface of described first area 11, and now first area 11 and second area 12 also link together, and upper module drift is return.
The 4th step, drive described material strip to move downward, the described mold insert of clapping upwards ejects sagging second area 12, make the upper surface of described second area 12 higher than the upper surface of described first area 11, the stretching that the upper surface of described second area 12 is subject to first area 11 will form one second fillet 125, the second fillets 125 and set to the concave, be smooth circular-arc, in diel uphill process, on material strip, move and exit the mold insert of clapping, product is still fixed in material strip, and then can obtain sheet material 1.
Further, described drift overlaps with the described die centre of form in the projection of the vertical direction centre of form that falls, being convenient to drift depresses second area 12, simultaneously also for the part second area 12 that guarantees to push up is connected to top at the end at the end, after described the second fillet 125 forms, there is a strip gap (producing large and small face) in the side of first area 11 described in the side of described second area 12.
After the 4th step, the product that described second area 12 forms after punching press, described second area 12 comprises a main part 121(facet), the side of main part 121 has the large face of a protuberance 122(), the upper surface flush of the upper surface of described protuberance 122 and described main part 121, the periphery of described protuberance 122 has one second fillet 125, described the second fillet 125 from the upper surface of described protuberance 122 to downward-extension, and intersect at the side of described protuberance 122, bottom surface downward-extension one base plate 123 of described main part 121, the outward flange of the outward flange of described base plate 123 and described main part 121 is connected by the first fillet 124, mobile formation one first fillet 124 and the second fillet 125 by metal, particularly when the precision size degree of product is had relatively high expectations, can effectively prevent that burr from appearring in the edge of product, certainly, sheet material in the present invention is mainly used on automatic punching machine and (also can uses on one-shot), be convenient to large-scale batch production, also be convenient to the control of size.With respect to design in the past, saved operation, also reduced the technique of subsequent treatment, without again adopting other treatment process, directly punching press just can be produced carrot-free product, has greatly met the demand of producing, particularly during the product of high precision, its effect is more notable.
In another the design, also upper module and lower module can be changed over up and down, carry out punching press processing, the direction of its motion is also just in time reverse, but its principle is identical, in this just not burdensome narration, its result also can obtain identical product, within also should belonging to scope of the present invention.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. without a method for burr punching press, it is characterized in that, comprising:
(1) provide a diel, it has on one module and module once, on described upper module, is provided with drift and the mold insert of clapping, and is provided with the end, top, clap mold insert and die on described lower module;
(2) provide a material strip, on material strip, can be divided into first area and second area, material strip is placed on described lower module actively, make the lower surface of first area be connected to the end, top, and the end, top exceeds lower module upper surface 0.01～0.02mm;
(3) when upper module moves downward, drift also moves downward, drift extruding second area, the material of second area is moved downward, second area enters in die, the corner of second area base material will be subject to pulling force and form the first fillet, continue to drive drift to move downward, until the upper surface of second area is higher than the lower surface of described first area, the thickness of material strip 10%～40% time, the drift of upper module is return;
(4) when diel moves downward, the mold insert of clapping on lower module upwards ejects sagging second area material higher than first area, make the upper surface of second area higher than the upper surface 0.01～0.02mm of first area, the upper surface of second area is subject to first area pulling force while moving upward forms the second fillet, and product is still fixed in material strip.
2. a kind of method without burr punching press as claimed in claim 1, is characterized in that: described first area and described second area have a virtual edge of a knife to exist.
3. a kind of method without burr punching press as claimed in claim 1, is characterized in that: the distance that described second area declines is less than the thickness of material strip.
4. a kind of method without burr punching press as claimed in claim 1, is characterized in that: described drift is greater than die size in the projection of vertical direction.
5. a kind of method without burr punching press as claimed in claim 1, is characterized in that: after described the second fillet forms, the side of described second area and the side of described first area exist a strip gap.
6. a kind of method without burr punching press as claimed in claim 1, is characterized in that: after step (4), described second area comprises a main part, and the side of main part has a protuberance surface of described protuberance and the upper surface flush of described main part.
7. a kind of method without burr punching press as claimed in claim 5, is characterized in that: the periphery of described protuberance has one second fillet, and described the second fillet to downward-extension, and intersects at the side of described protuberance from the upper surface of described protuberance.
8. a kind of method without burr punching press as claimed in claim 6, is characterized in that: bottom surface downward-extension one base plate of described main part, the outward flange of described base plate is connected by the first fillet with the outward flange of described main part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407810.9A CN104148504B (en) | 2014-08-19 | 2014-08-19 | A kind of method of impulse- free robustness punching press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407810.9A CN104148504B (en) | 2014-08-19 | 2014-08-19 | A kind of method of impulse- free robustness punching press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104148504A true CN104148504A (en) | 2014-11-19 |
| CN104148504B CN104148504B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410407810.9A Expired - Fee Related CN104148504B (en) | 2014-08-19 | 2014-08-19 | A kind of method of impulse- free robustness punching press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104148504B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077271A (en) * | 2016-07-20 | 2016-11-09 | 成都瑞垚电子有限公司 | A kind of Sheet Metal Forming Technology of the adapter processing hard stainless steel |
| CN107405672A (en) * | 2015-03-06 | 2017-11-28 | Ｊｘ金属株式会社 | Punch press process method, the manufacture method of punch forming part and punch forming part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201149U (en) * | 1985-04-01 | 1986-08-06 | 李建华 | Combined opposite punching-shearing die for punching burr-free hole |
| JP2004174542A (en) * | 2002-11-26 | 2004-06-24 | Fukae Kosakusho:Kk | Method for press-working metallic plate material |
| CN200984602Y (en) * | 2006-08-28 | 2007-12-05 | 无锡相川铁龙电子有限公司 | Blanking die of the ultrathin element of the notebook-type computer card reader |
| CN101107086A (en) * | 2005-01-25 | 2008-01-16 | 爱信艾达株式会社 | Pressing mechine, pressing method, and punched article |
| CN103212620A (en) * | 2012-05-18 | 2013-07-24 | 孙昌清 | Burr-free blanking method and blanking system |
-
2014
- 2014-08-19 CN CN201410407810.9A patent/CN104148504B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201149U (en) * | 1985-04-01 | 1986-08-06 | 李建华 | Combined opposite punching-shearing die for punching burr-free hole |
| JP2004174542A (en) * | 2002-11-26 | 2004-06-24 | Fukae Kosakusho:Kk | Method for press-working metallic plate material |
| CN101107086A (en) * | 2005-01-25 | 2008-01-16 | 爱信艾达株式会社 | Pressing mechine, pressing method, and punched article |
| CN200984602Y (en) * | 2006-08-28 | 2007-12-05 | 无锡相川铁龙电子有限公司 | Blanking die of the ultrathin element of the notebook-type computer card reader |
| CN103212620A (en) * | 2012-05-18 | 2013-07-24 | 孙昌清 | Burr-free blanking method and blanking system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405672A (en) * | 2015-03-06 | 2017-11-28 | Ｊｘ金属株式会社 | Punch press process method, the manufacture method of punch forming part and punch forming part |
| CN107405672B (en) * | 2015-03-06 | 2019-07-12 | Ｊｘ金属株式会社 | Punch press process method, the manufacturing method of punch forming part and punch forming part |
| CN106077271A (en) * | 2016-07-20 | 2016-11-09 | 成都瑞垚电子有限公司 | A kind of Sheet Metal Forming Technology of the adapter processing hard stainless steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104148504B (en) | 2016-06-29 |
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