CN102672011A - Bending process method of metal plate, process tool for the method, bending processed product using the method and middle bending processed product - Google Patents

Bending process method of metal plate, process tool for the method, bending processed product using the method and middle bending processed product Download PDF

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Publication number
CN102672011A
CN102672011A CN2011104209046A CN201110420904A CN102672011A CN 102672011 A CN102672011 A CN 102672011A CN 2011104209046 A CN2011104209046 A CN 2011104209046A CN 201110420904 A CN201110420904 A CN 201110420904A CN 102672011 A CN102672011 A CN 102672011A
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China
Prior art keywords
mentioned
metallic plate
bending
groove
protuberance
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CN2011104209046A
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Chinese (zh)
Inventor
牧山高大
寺前俊哉
菅野笃
大原功
坂井满
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株式会社日立制作所
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Priority to JP2011-056686 priority Critical
Priority to JP2011056686A priority patent/JP2012192421A/en
Application filed by 株式会社日立制作所 filed Critical 株式会社日立制作所
Publication of CN102672011A publication Critical patent/CN102672011A/en

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Abstract

The invention provides a bending process method of a metal plate with high production efficiency and excellent design, a process tool for the method, a bending processed product using the method and a middle bending processed product in the halfway of the bending process. The bending process method of the metal plate comprises the following steps: a step A of forming a W groove (2), wherein the W groove comprises two concave parts (4,4) which are formed in parallel with each other on the inner side of a bending part of the metal plate (1), and a convex part (5) formed between the concave parts; a step B of forming a convex part (3), wherein the convex part is formed by two inflection points and a curve tangential with the surface of the metal plate on the opposite sides of the W groove separated by the metal plate; a step C of bending the metal plate along the W groove. The W groove and the convex parts are formed by plastic deformation using a tool and the production efficiency is high. Moreover, craze or fold is not generated on the outer side of the bending part to form a smooth surface with small radium, wherein the smooth surface projects from the plane shaped surface continuous with the surface and the design is improved.

Description

The bending machining method of metallic plate, the bending machining article and the bent intermediate processed goods that are used for the machining tool of this processing method and utilize this bending machining method to form
Technical field
The bending machining method of the metallic plate of the bending radius when the present invention relates to reduce that panel beating carried out bending machining, be used for the machining tool of this processing method and utilize the bending machining article that this bending machining method forms and be in this bending machining bent intermediate processed goods midway.
Background technology
In the past, for example the decoration of the metallic plate of three square frames of elevator and shutter door or various device used metal outer panel to consider design and was mostly to utilize bending machining manufacturing.At panel beating bending machining article, it is high more that the processed goods that bending radius is more little is be evaluated as design.With regard to the sheet metal that is bent processing, big if radius of curvature becomes, then since only curved outer occupy more surface, therefore can't give prominence to tabular surface.But with regard to the bending machining of metallic plate, general radius of curvature is more little, and curved outside crooked bigger and be easy to generate the processing of be full of cracks or fold produces and chap or instead the processed goods design of fold descends.
Technological as a setting in the art, the technology that the V groove that exists japanese kokai publication hei 11-33813 communique (patent documentation 1) to be put down in writing is processed.V groove processing method according to patent documentation 1 record; Make upper stages and bottom workbench relatively approaching; Cooperation clamping workpiece through the first pressing plate FP (smooth drift) and second pressing plate; Move bearing part through carrying mobile device along guiding parts, be installed in V groove cutting sword that the V groove cutting on the bearing part uses workpiece cut V groove.V groove processing as carrying out in advance when the bending machining of SPPC or corrosion resistant plate can easily form straight V groove.
In addition, as the background technology in present technique field, there is the bending method of the metallic plate of TOHKEMY 2003-25019 communique (patent documentation 2) record.Bending method according to the metallic plate of patent documentation 2 record; Surface at metallic plate forms otch along bending line; And form the outwards outstanding circular-arc protuberance that is accordingly at the back side of metallic plate with this otch, with otch as curved interior, with protuberance as curved outside; Through along bending line bending metallic plate, form bend.
The prior art document
Patent documentation 1: japanese kokai publication hei 11-33813 communique
Patent documentation 2: TOHKEMY 2003-25019 communique
In the V groove processing method of patent documentation 1 record, in the processing of cutting swarf, spend the time, production efficiency is low.That is, in this V groove processing mode, when forming groove, produce cutting swarf, need make non-cohesive on V groove cutting sword or the operation of collecting cutting swarf of the cutting swarf of generation.
In addition, in the bending method of the metallic plate that patent documentation 2 is put down in writing, can't carry out the bending of the excellent metallic plate of design.That is, in this metallic plate bending method, owing to produce the recess parallel with sweep in the bend outside, therefore the outward appearance in order to realize that design is excellent needs the correction operation of outer shape.
Therefore, the problem that exists following needs to solve through working hard in shape of and the bend outside inboard at the bend of metallic plate, does not produce be full of cracks or fold in the bend outside, realizes the outward appearance that design is excellent in the bend outside.
Summary of the invention
The object of the present invention is to provide the high and metallic plate that design is excellent of production efficiency the bending machining method, be used for the machining tool of this processing method and utilize the bending machining article that this bending machining method forms and be in this bending machining bent intermediate processed goods midway.
In order to solve above-mentioned problem; The bend processing method of metallic plate of the present invention is characterised in that; Has following operation: the operation A that forms the W groove; This W groove has: from the plate surface of a side of the crooked reservations of metallic plate towards the inboard of these bending reservations, two recesses that form parallel to each other in the both sides of bending preset lines and be formed at the protuberance between above-mentioned two recesses; Form the process B of protuberance; This protuberance forms at the opposite side and the above-mentioned W groove of the above-mentioned crooked reservations of above-mentioned metallic plate accordingly, is had flex point accordingly respectively and is constituted with the curve of the surperficial tangent of this opposite side of above-mentioned metallic plate by each side with above-mentioned bending preset lines; Operation C, the above-mentioned crooked reservations of the above-mentioned metallic plate of above-mentioned bending preset lines bending of the above-mentioned W groove in edge.
According to the bending machining method of this metallic plate, in operation C, with the crooked reservations of metallic plate with bending preset lines along the W groove; And when becoming the mode bending of crooked inboard with the W groove; Even bend outside curvature is little, can not produce be full of cracks or fold yet, can be smooth curved surface.
In addition, in the bending machining method of this metallic plate, above-mentioned operation A and above-mentioned process B are carried out as same operation; While is at a side's of crooked reservations plate face side processing W groove; Face side processing protuberance the opposing party of crooked reservations can shorten the operations time, in addition; In above-mentioned operation A and above-mentioned process B; Through the thickness of slab direction of above-mentioned metallic plate to above-mentioned metallic plate being pushed in the above-mentioned crooked reservations outside, prevent that metallic plate by mistake moves when the bending machining operation, can correctly carry out the shaping of W groove and protuberance.In addition, the bending of the above-mentioned metallic plate of above-mentioned operation C can utilize joggling machine or tube reducing bending to carry out.
A kind of instrument of the present invention that is used for the bending machining of above-mentioned metallic plate; It is characterized in that; The instrument that in above-mentioned operation A, forms above-mentioned W groove has and above-mentioned two recesses of above-mentioned W groove are provided with accordingly parallel to each other two protuberances and the recess that between these two protuberances, is provided with accordingly with the raised part of above-mentioned W groove, above-mentioned two protuberances and the above-mentioned recess that is located between above-mentioned two protuberances are made up of smooth curved surface.According to this groove forming tool, owing to be with the auxilliary shape of the profile phase of W groove and have protuberance and the recess that constitutes by smooth curved surface, therefore to a thruster indent forming tool of the fixed crooked portion in advance of metallic plate the time, form the W groove of regulation in this side.
A kind of instrument of the present invention that is used for the bending machining of above-mentioned metallic plate; It is characterized in that; The instrument that in above-mentioned process B, forms raised part at the opposite side of the above-mentioned crooked reservations of above-mentioned metallic plate has the recess of plane and the groove shape corresponding with the raised part of the opposite side of the above-mentioned crooked reservations that in above-mentioned process B, should be formed on above-mentioned metallic plate; The plane tangent that the recess of above-mentioned groove shape and the portion in the two edges of this groove extend, the recess of above-mentioned groove shape is made up of the smooth curved surface with two flex points corresponding with the above-mentioned flex point of the raised part of the opposite side of the above-mentioned crooked reservations that should be formed on above-mentioned metallic plate.According to this protuberance forming tool; Owing to possess the recess of the groove shape of assisting mutually with the protuberance of the opposite side of the crooked reservations that should be formed at metallic plate; Therefore to the opposite side pushing protuberance forming tool of the crooked reservations of metallic plate the time, form the protuberance of regulation at this opposite side.
In above-mentioned instrument, above-mentioned groove forming tool and raised part forming tool dispose across above-mentioned metallic plate, and above-mentioned groove forming tool and raised part forming tool can relatively move on the thickness of slab direction of above-mentioned metallic plate.Through groove forming tool and protuberance forming tool are relatively moved on the thickness of slab direction of metallic plate; Thruster groove forming tool in the crooked reservations of metallic plate; At another thruster protuberance forming tool; Can form the W groove of regulation simultaneously in this side, and form the protuberance of regulation at this opposite side.
The bending machining article of metallic plate of the present invention are characterised in that; Bend at metallic plate; Both sides at the central portion of bending line have the little recess of the above-mentioned central portion of thickness ratio; And the outer radius of above-mentioned bend is below the thickness of slab, and near the symbol of the rate of change of the circumferential tangent slope the above-mentioned bend is identical.Because the both sides at the central portion of bending line have the little recess of thickness ratio central portion, therefore, this recess absorbs the crooked of bend, can relax or eliminate flexural deformation to the influence outside the bend.Because the outer radius of bend is below the thickness of slab, so shared surperficial little in the bend outside, other tabular surfaces can be given prominence to.In addition, because near the symbol of the rate of change of the circumferential tangent slope the bend is identical, so tangent slope can not increase and decrease repeatedly.Therefore, the surface in the bend outside can form concavo-convex not repeatedly, smooth and simple curved surface.
The bent intermediate processed goods of metallic plate of the present invention is characterised in that; Crooked reservations at metallic plate are inboard; Form the W groove from a side of above-mentioned crooked reservations; This W groove has the bending preset lines as the protuberance of central authorities and two recesses that are provided with parallel to each other in the bending direction both sides of this protuberance, forms by the protuberance that has two flex points accordingly and constitute with the curve of above-mentioned metallic plate tangent with above-mentioned W groove at the opposition side of a side of the above-mentioned W groove of being formed with of above-mentioned metallic plate.According to the bent intermediate processed goods of this metallic plate, when the crooked reservations W groove of metallic plate is to the inside mode bending of center with the bending preset lines,, can not make the bend outside produce be full of cracks or fold even curvature is little yet, can form smooth curved surface.
In the elevator that possesses passenger car, door and three square frames, it is characterized in that, the bending machining article of metallic plate that utilizes the processing of above-mentioned bending machining method or above-mentioned metallic plate are used for any of above-mentioned passenger car, door, three square frames.According to this elevator, also can adjust smooth metal covering even the area of the curvature portion in the bend outside is little, therefore can improve its design.
Effect of the present invention is following.
According to as the bending machining method of metallic plate of the present invention, be used for the machining tool of this method and utilize bending machining article that this bending machining method forms, reach the bent intermediate processed goods; Can provide production efficiency high, and the excellent metallic plate bending machining article of design.
Problem, structure and effect beyond above-mentioned can be clearer and more definite according to the explanation of following embodiment.
Description of drawings
Fig. 1 is the flow chart of an example of manufacturing approach and its manufacturing process of the bending machining article of expression metallic plate of the present invention.
Fig. 2 be the expression metallic plate that formed metallic plate slot part and metallic plate protuberance the bent intermediate processed goods an example and make in the middle of the figure of an example of bending machining article of metallic plate of processed goods bending.
Fig. 3 is the key diagram of example of the effect of explanation metallic plate slot part and metallic plate protuberance.
Fig. 4 is the figure of an example of the expression groove forming tool that forms the metallic plate slot part.
Fig. 5 is the figure of an example of the expression protuberance forming tool that forms the metallic plate protuberance.
Fig. 6 be used metallic plate of the present invention bending machining elevator three square frames with the door example.
Fig. 7 is the example of car of elevator of having used the bending machining of metallic plate of the present invention.
Fig. 8 utilizes the tube reducing bending to be bent to form the example of the metallic plate of metallic plate slot part and metallic plate protuberance.
Among the figure: 1-metallic plate, 2-slot part (W groove), 3-protuberance, the recess of 4-slot part 2, the protuberance of 5-slot part 2, the recess of the slot part after the 6-bending; The protuberance of the slot part after the 7-bending, 8-thickness of slab, the 9-bend outside, 10-apex, 11-groove forming tool, 12-protuberance forming tool; 13-press tool, 14-groove are shaped and use protuberance, and the 15-groove is shaped and uses recess, 16-planar portions, 17-groove shape recess; 21-joggling machine drift, 22-joggling machine punch die, 23-punch radius, 31-three square frames, 32-door; The 33-car, 34-car side plate, the last pad of 41-, 42-underlay, 43-tube reducing crooked formed punch.
The specific embodiment
Below, use description of drawings metallic plate of the present invention the bending machining method, be used for the machining tool of this processing method and utilize bending machining article that this bending machining method forms and the embodiment of bent intermediate processed goods.
Embodiment one
Explain in the present embodiment the high and metallic plate that design is excellent of production efficiency the bending machining method, be used for the machining tool of this processing method and utilize bending machining article that this bending machining method forms and the embodiment of bent intermediate processed goods.
Fig. 1 is the figure of an example of bending machining method of manufacturing approach that representes the bending machining article of metallic plate of the present invention according to the order of manufacturing procedure.
In Fig. 1, (a) expression is placed on metallic plate 1 on the protuberance forming tool 12 in order to implement bending machining, and places press tool 13 from the top of metallic plate 1, and metallic plate 1 is clipped in the state between protuberance forming tool 12 and the press tool 13.On press tool 13, have the hole 13a that groove forming tool 11 can pass through fully, through this hole 13a insertion groove forming tool 11.
In Fig. 1; (b) expression is next at the direction pushing press tool 13 to protuberance forming tool 12; Metallic plate 1 is clipped under the state of 12,13 of these instruments; Through groove forming tool 11 is squeezed into etc. to the direction of protuberance forming tool 12 it is relatively moved, thereby on metallic plate 1, form the state of slot part 2 and protuberance 3 (Fig. 2).
In Fig. 1; (c) represent following state: next; Under the state that in (b), forms, promptly so that slot part 2 towards joggling machine drift 21 sides, make protuberance 3 dispose metallic plate 1 towards the mode of joggling machine punch die 22 sides; Under this state, making front end is that the joggling machine drift 21 of taper relatively moves downwards from the diagram top to the direction of the joggling machine punch die 22 that is formed with V word shape groove, makes metallic plate 1 bending.
In Fig. 1, for the manufacturing approach of proper metal plate bending machining article is described, put down in writing pusher 13, but also can not use.
Fig. 2 is the figure of the state of representing that in order the processing of metallic plate 1 is carried out; (a) be the cutaway view of example of the bent intermediate processed goods of the expression metallic plate 1 that formed slot part 2 and protuberance 3; (b) be that expression makes the bent intermediate processed goods shown in (a) crooked through utilizing the method shown in Fig. 1 (c), make the cutaway view of example of the bending machining article of metallic plate 1.
In Fig. 2, shown in (a), the profile of slot part 2 is characterised in that, by as the recess 4,4 of two recesses that form parallel to each other and be formed at recess 4, protuberance 5 between 4 constitutes.The convex surface of protuberance 5 connects at the concave surface of each recess 4,4 of its two side direction glossily, and the concave surface of recess 4,4 and the convex surface of protuberance 5 have the profile of symmetry with respect to the central authorities of protuberance 5.Protuberance 3 forms convex metallic plate 1 with a side opposition side that is formed with slot part 2 and with slot part 2 corresponding positions; Because its outline line has the summit and at the both sides of protuberance 3 and the face tangent of metallic plate 1 in central authorities, so is made up of the curve with two protuberance flex points.
In Fig. 2; If will be such crooked shown in (b) as the metallic plate 1 of the bent intermediate processed goods that has formed slot part 2 shown in (a) and protuberance 3; Then can obtain following bending machining article: have the little recess 6 of thickness ratio protuberance 7 in both sides, and the radius in the bend outside 9 is that the thickness of slab of metallic plate 1 is below 8 as the protuberance 7 of the central portion of bending line by metallic plate 1; And near the symbol of the rate of change of the tangent slope the bend outside 9 is identical.With regard near the surface the bend outside 9, because the symbol of the rate of change of its tangent slope is identical, therefore do not form concavo-convexly on the surface in the bend outside 9, can form smooth curved surface.
Fig. 3 is the figure of example of the effect of explanation slot part 2 and protuberance 3.In Fig. 3; Because in the occasion that makes the metallic plate that does not have slot part 2 and protuberance 31 bending shown in (a); Since the thickness of slab 8 of the radius in the bend outside 9 and punch radius of joggling machine drift 21 23 and metallic plate 1 with about equally, therefore can't make outside the bend thickness of slab that 9 radius becomes metallic plate 1 below 8.In Fig. 3, through the slot part (W groove) 2 of the W shape shown in (b) is set, can on the bend outside 9, produce and break, can make outside the bend thickness of slab that 9 radius becomes metallic plate 1 below 8.
V groove processing method with respect to above-mentioned patent documentation 1 record; Utilize plastic working to form method excellence on productivity of slot part 2; But then; In the occasion of slot part 2 being made V-shape, the amount of plastic deformation of the apex 10 in the bend outside 9 is many, on the bend outside 9, produces easily and breaks.Therefore, through slot part 2 is made the W word shape, the amount of plastic deformation that will be produced by the bending in the bend outside 9 is dispersed in crooked week upwards, can suppress breaking of bend outer point portion 10.
But, when the slot part 2 of W word shape only is set, among Fig. 3 shown in (c), the surface configuration in the bend outside 9 is the shapes with concavo-convex flattening, design is bad.This be because, the slot part after bending, through as the little recess 6 of the both sides configuration thickness ratio protuberance of the protuberance 7 of the central portion of bending line 7, in the bend outside 9, near the plastic deformation the little recess 6 of thickness of slab becomes greatly.Relative therewith; Present embodiment with reference to Fig. 2 as stated; In the bend outside 9; Since be provided with by have two protuberance flex points and with the protuberance 3 that the curve of metallic plate 1 tangent constitutes, therefore can on the bend outside 9, not produce and break, can access the metallic plate bending machining article of design excellence.
Fig. 4 is the example that forms the groove forming tool 11 of slot part 2.Groove forming tool 11 is made up of two protuberances 14,14 of the groove shaping usefulness that is provided with parallel to each other and the recess 15 that is located at 14,14 of protuberances.The shape that is used for the recess 15 that groove is shaped is shown in Fig. 4 (a); Can be the groove of acute angle shape from outside incision; But shown in (b), the cross section profile shape that also can constitute protuberance 14,14 that groove is shaped and recess 15 has the smooth continuous curve of two flex points.Like this, if to make profile be smooth continuous curve, on the viewpoint of the easy property of the intensity of groove forming tool 11 and manufacturing thereof, be favourable then.With regard to W groove 2, owing to be not cut, form by the plastic deformation that pushes generation of groove forming tool 11 but utilize, therefore can not produce cutting swarf from metallic plate 1.
Specifically; With respect to the power that produces on the direction of opening protuberance 14,14 that when groove forming tool 11 is pushed metallic plate 1, produces; Cross section profile shape through with protuberance 14,14 and recess 15 is made up of the smooth continuous curve with two flex points; Can relax the stress that on groove forming tool 11, produces and concentrate, improve the intensity and the fatigue life of groove forming tool 11.In addition,, enumerated machining and edm etc., acutangulated but be difficult to the incision front end of recess 15 done as the manufacturing approach of slot part forming tool 11.Through the shape of recess 15 is made the curve with suitable curvature, can shorten the manufacturing time of slot part forming tool 11.
Fig. 5 is the example that on metallic plate 1, forms the protuberance forming tool 12 of protuberance 3.Protuberance forming tool 12 has the planar portions 16,16 of portion's extension in the two edges of groove and the recess 17 of groove shape, recess 17 and planar portions 16,16 tangents for protuberance is shaped.With regard to the cross sectional shape of recess 17, preferably constitute by smooth continuous curve with two flex points.Promptly; Shown in (a); The cross section profile shape of the recess 17 of groove shape can be acute angle; Also can be shown in (b), the cross section profile shape of recess 17 is made up of the smooth continuous curve with two flex points, and the latter's constituted mode is favourable on the viewpoint of the easy property of the manufacturing of the intensity of protuberance forming tool 12, protuberance forming tool 12.
Specifically; The power that produces on the direction of opening recess 17 with respect to the occasion generation that gets into protuberance forming tool 12 at metallic plate 1; Cross sectional shape through recess 17 is made up of the smooth continuous curve with two flex points; Can relax the stress that on protuberance forming tool 12, produces and concentrate, improve the intensity and the fatigue life of protuberance forming tool 12.In addition; As the manufacturing approach of protuberance forming tool 12, enumerated machining and edm, acutangulate but be difficult to the incision front end of recess 17 done; Through the shape of recess 17 is made the curve with suitable curvature, can shorten the manufacturing time of protuberance forming tool 12.
Then, the processing conditions for the excellent bending machining article of the design that obtains metallic plate is described.To obtain the excellent metallic plate bending machining article of design in order on the bend outside 9, not producing with breaking, mainly to need adjust the relative amount of movement of shape, groove forming tool 11 and protuberance forming tool 12 of shape, the protuberance forming tool 12 of groove forming tool 11.The relative amount of movement of the shape of concrete groove forming tool 11, the shape of protuberance forming tool 12, groove forming tool 11 and protuberance forming tool 12 may not determine according to the material of metallic plate or thickness of slab, as the radius change in the bend outside 9 of target simply.This be because; The processing conditions parameter is many; The stress state that not only when the curved shape of slot part that depends on metallic plate 12 and protuberance 3, produces is complicated; Distortion (work hardening) when also depending on formation slot part 2 with protuberance 3 etc., 9 shape concerns that right and wrong are linear outside the shape of slot part 2 and protuberance 3 and the bend.Therefore, obtain processing conditions by error, but, can obtain processing conditions effectively through experimental analogic methods such as the limited factors method of use.On the other hand, with regard to the size shape of joggling machine drift 21 and joggling machine punch die 22, can utilize the crooked condition of existing phenomenon through adopting, leading section that can joggling machine drift 21 does not get into slot part 2 ground and is shaped.
Embodiment 2
In the present embodiment, the example to the metallic plate bending machining article of elevator describes.
Fig. 6 is three square frames 31 of elevator and the example of door 32.Three square frames 31 of elevator and door 32 are design parts, and the bending radius in bight is more little, and design is more excellent.Fig. 7 is the example of the car 33 of elevator.Likewise, car side plate 34 also is a design part, because the gap between the side plate of the little side of the bending radius in bight and adjacency is little, so looks the design excellence.The metallic plate of the metallic plate processed goods that production efficiency height and design are excellent for example is copper alloys such as aluminium alloys such as corrosion resistant plates such as steel plates such as SPCC, SPHC, SGCC, SGHC, SS400, SUS304, SUS430, A1050, A6063, C2700, C2801 etc.
Fig. 8 is the crooked example of metallic plate 1 that has utilized the tube reducing bending to make to have formed slot part 2 and protuberance 3.Shown in (a), make the metallic plate 1 that has formed slot part 2 and protuberance 3 for utilizing the state of going up pad 41 and underlay 42 clampings, shown in (b), move in addition through making tube reducing crooked formed punch 43, make metallic plate 1 bending.Do not utilize the overshooting of going up a pad 41 and a side of underlay 42 maintenances owing to the tube reducing bending does not exist, therefore help the tabular bending as the designing material of elevator.
In addition, the present invention is not defined in the above embodiments, comprises the various deformation example.For example, the foregoing description at length is illustrated the present invention in order to explain expressly easily, possesses illustrated whole structure but may not be defined in.In addition, can the part of the structure of certain embodiment be replaced with the structure of other embodiment, in addition, also can on the structure of certain embodiment, add the structure of other embodiment.In addition, also can carry out interpolation, deletion, the replacement of other structures to the part of the structure of each embodiment.

Claims (11)

1. the bend processing method of a metallic plate is characterized in that, has following operation:
Form the operation A of W groove; This W groove has: from the plate surface of a side of the crooked reservations of metallic plate towards the inboard of these bending reservations, two recesses that form parallel to each other in the both sides of bending preset lines and be formed at the protuberance between above-mentioned two recesses;
Form the process B of protuberance; This protuberance forms at the opposite side and the above-mentioned W groove of the above-mentioned crooked reservations of above-mentioned metallic plate accordingly, is had flex point accordingly respectively and is constituted with the curve of the surperficial tangent of this opposite side of above-mentioned metallic plate by each side with above-mentioned bending preset lines; And
Operation C, the above-mentioned crooked reservations of the above-mentioned metallic plate of above-mentioned bending preset lines bending of the above-mentioned W groove in edge.
2. the bending machining method of metallic plate according to claim 1 is characterized in that,
Carry out above-mentioned operation A and above-mentioned process B with same operation.
3. the bending machining method of metallic plate according to claim 2 is characterized in that,
In above-mentioned operation A and above-mentioned process B, the thickness of slab direction of above-mentioned metallic plate pushes above-mentioned metallic plate in above-mentioned crooked reservations lateral.
4. the bending machining method of metallic plate according to claim 1 is characterized in that,
In above-mentioned operation C, utilize the crooked above-mentioned metallic plate of joggling machine.
5. the bending machining method of metallic plate according to claim 1 is characterized in that,
In above-mentioned operation C, utilize the crooked above-mentioned metallic plate of tube reducing crooked.
6. a groove forming tool is the instrument that in the described above-mentioned operation A of claim 1, forms above-mentioned W groove, it is characterized in that,
The recess that has corresponding and two protuberances being provided with parallel to each other of above-mentioned two recesses with above-mentioned W groove and between these two protuberances, be provided with accordingly with the raised part of above-mentioned W groove, above-mentioned two protuberances and the above-mentioned recess that is located between above-mentioned two protuberances are made up of smooth curved surface.
7. protuberance forming tool is the instrument that in the described above-mentioned process B of claim 1, forms raised part at the opposite side of the above-mentioned crooked reservations of above-mentioned metallic plate, it is characterized in that,
Recess with plane and groove shape corresponding with the raised part of the opposite side of the above-mentioned crooked reservations that in above-mentioned process B, should be formed on above-mentioned metallic plate,
The recess of above-mentioned groove shape and the plane tangent that portion extends in the two edges of this groove,
The recess of above-mentioned groove shape is made up of the smooth curved surface with two flex points corresponding with the above-mentioned flex point of the raised part of the opposite side of the above-mentioned crooked reservations that should be formed on above-mentioned metallic plate.
8. a bending machining instrument is the instrument of the bending machining method of the described metallic plate of claim 1, it is characterized in that,
Described above-mentioned groove forming tool of claim 6 and the described raised part forming tool of claim 7 dispose across above-mentioned metallic plate,
Above-mentioned groove forming tool and raised part forming tool can relatively move on the thickness of slab direction of above-mentioned metallic plate.
9. the bending machining article of a metallic plate is characterized in that,
At the bend of metallic plate, have the little recess of the above-mentioned central portion of thickness ratio in the both sides of the central portion of bending line, and the outer radius of above-mentioned bend is below the thickness of slab, and near the symbol of the rate of change of the circumferential tangent slope the above-mentioned bend is identical.
10. the bent intermediate processed goods of a metallic plate is characterized in that,
Crooked reservations at metallic plate are inboard, form the W groove from a side of above-mentioned crooked reservations, and this W groove has the bending preset lines as the protuberance of central authorities and two recesses that are provided with parallel to each other in the bending direction both sides of this protuberance,
Form by the protuberance that has two flex points accordingly and constitute with above-mentioned W groove at the opposition side of a side of the above-mentioned W groove of being formed with of above-mentioned metallic plate with the curve of above-mentioned metallic plate tangent.
11. an elevator possesses passenger car, door and three square frames, it is characterized in that,
The bending machining article of metallic plate that utilizes each described bending machining method processing of claim 1~5 or the described metallic plate of claim 9 are used for any of above-mentioned passenger car, door, three square frames.
CN2011104209046A 2011-03-15 2011-12-15 Bending process method of metal plate, process tool for the method, bending processed product using the method and middle bending processed product CN102672011A (en)

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CN102933059A (en) * 2012-11-08 2013-02-13 昆山万禾精密电子有限公司 Monitor support and preparation method thereof
CN103418988A (en) * 2013-08-28 2013-12-04 温州市跃康激光科技有限公司 Machining molding method for three-dimensional panel part with hole-position structure at bending position
CN104815900A (en) * 2015-05-19 2015-08-05 上海华庄模具有限公司 Aluminum channel section part stamping bending forming technology
CN105492136A (en) * 2013-08-26 2016-04-13 杰富意钢铁株式会社 Method for manufacturing curved component having polygonal closed-cross-sectional structure and curved component having polygonal closed-cross-sectional structure and manufactured using said method
CN108025342A (en) * 2015-07-13 2018-05-11 日新制钢株式会社 The manufacture method of L font square tubes, the manufacture device of L font square tubes and L font square tubes
CN110130794A (en) * 2019-05-22 2019-08-16 方由权 Timber and production method
CN111071902A (en) * 2018-10-19 2020-04-28 株式会社日立制作所 Elevator car and car bottom assembling method

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Publication number Priority date Publication date Assignee Title
CN102933059A (en) * 2012-11-08 2013-02-13 昆山万禾精密电子有限公司 Monitor support and preparation method thereof
CN105492136A (en) * 2013-08-26 2016-04-13 杰富意钢铁株式会社 Method for manufacturing curved component having polygonal closed-cross-sectional structure and curved component having polygonal closed-cross-sectional structure and manufactured using said method
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CN105492136B (en) * 2013-08-26 2018-07-24 杰富意钢铁株式会社 The manufacturing method of polygon closed-section structural component with curved shape and the polygon closed-section structural component manufactured by this method
CN103418988A (en) * 2013-08-28 2013-12-04 温州市跃康激光科技有限公司 Machining molding method for three-dimensional panel part with hole-position structure at bending position
CN104815900A (en) * 2015-05-19 2015-08-05 上海华庄模具有限公司 Aluminum channel section part stamping bending forming technology
CN108025342A (en) * 2015-07-13 2018-05-11 日新制钢株式会社 The manufacture method of L font square tubes, the manufacture device of L font square tubes and L font square tubes
CN111071902A (en) * 2018-10-19 2020-04-28 株式会社日立制作所 Elevator car and car bottom assembling method
CN110130794A (en) * 2019-05-22 2019-08-16 方由权 Timber and production method

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