CN101132869A - Method for bending metal material, bending machine, bending-equipment line, and bent product thereof - Google Patents

Method for bending metal material, bending machine, bending-equipment line, and bent product thereof Download PDF

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Publication number
CN101132869A
CN101132869A CNA2006800069674A CN200680006967A CN101132869A CN 101132869 A CN101132869 A CN 101132869A CN A2006800069674 A CNA2006800069674 A CN A2006800069674A CN 200680006967 A CN200680006967 A CN 200680006967A CN 101132869 A CN101132869 A CN 101132869A
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China
Prior art keywords
metal material
mentioned
bender
bending
movable roller
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CNA2006800069674A
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Chinese (zh)
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CN101132869B (en
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富泽淳
菊池文彦
桑山真二郎
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Nippon Steel Corp
Nippon Steel Pipe Co Ltd
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Sumitomo Metal Industries Ltd
Sumitomo Pipe and Tube Co Ltd
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Publication of CN101132869A publication Critical patent/CN101132869A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12292—Workpiece with longitudinal passageway or stopweld material [e.g., for tubular stock, etc.]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A method of push-through bending processing for a metal material, comprising, while sequentially or continuously extruding a material to be processed from the upstream side, carrying out bending processing thereof on the downstream side, wherein the metal material is clamped by means of mobile roller dies and under controlling of the position and/or moving speed of the mobile roller dies, heated at a temperature range permitting local plastic deformation and permitting quench hardening by means of heating means and cooling means disposed on the periphery of the metal material, followed by application of a bending moment and quenching. Further, there are provided a relevant bending processing apparatus and bending processing equipment line. Even in the event of processing to achieve continuous bending involving two-dimensionally different bending directions, or continuous bending involving three-dimensionally different bending directions, of the metal material, and even in the event of requirement of bending processing for a metal material with greater strength, a metal material with high shape fixability and uniform hardness distribution can be obtained efficiently at low cost. Accordingly, wide application thereof can be found as an increasingly sophisticated automobile part bending processing technology.

Description

The bend processing method of metal material, bender and bending machining equipment are listed as and use the bending machining product that they are made
Technical field
The present invention relates to a kind of bend processing method and bender and bending machining equipment row of metal material, relating to a kind of is that different continuous bend is (for example on 2 dimensions for bending direction even say so in further detail at metal material, the bending of S word) under the situation, or bending direction is under the situation of different continuous bend on 3 dimensions, can carry out expeditiously bending machining metal material bend processing method and can use the processing unit (plant) of this bend processing method and bending machining equipment row, use the bending machining product that they make in addition.
Background technology
In recent years, for worry, structure is required the light and high-intensity material of operating weight gradually with metal material to earth environment.For example, in automobile industry, the requirement of car body security is increased, more and more stricter to the requirement of the lightweight of automobile component and high strength, from improving fuel cost and improving the aspect of colliding security and consider, advancing the exploitation of automobile with parts.
In order to tackle such requirement, be extensive use of by the high-tensile steel that constitutes with diverse strength grade in the past, for example, hot strength is more than or equal to 780MPa even more than or equal to the high-intensity raw material of 900MPa.
On the other hand, in these raw-material high strengths, also can restudy the structure of automobile usefulness parts in the past.Thereupon, in order to be applied to diversified automobile parts, a kind of bending processing technology of metal material being carried out high accuracy processing of strong request exploitation.This metal material is made of shape, for example bending direction different curved shape on 2 dimensions even 3 dimensions of complexity.
In the past, in order to tackle the requirement of the such bending processing technology of exploitation, various process technologies had been proposed.For example, in Japanese kokai publication sho 50-59263 number and No. 2816000 these two communiques of Japan Patent, proposed a kind of one side metal tube etc. has been heat-treated, on one side it is carried out the method for bending machining.Specifically, be a kind of like this method: the processing front of metal tube etc. is clamped in rotates freely on the arm, utilize heater that it is heated on one side, the heating part is suitably moved, thereby make its flexural deformation, afterwards with machined materials such as this metal tube cooling (method that in Japanese kokai publication sho 50-59263 communique, proposes), also have, be a kind of above-mentioned heating part to be applied twisting resistance and bending force, the method (method that in No. 2816000 communique of Japan Patent, proposes) that when making its distortion that twists, also occurs bending and deformation.
But, the bend processing method that proposes in above-mentioned two communiques is the processing method that a kind of and so-called clamping bending machining distinguishes, owing to all need with rotating the processing leading section that arm freely clamps metal tube etc., the feed speed that therefore can't make metal tube in the processing etc. is at a high speed.And because every clamping that repeats once to be undertaken by arm all needs arm is returned, therefore the feed speed change significantly need carry out complicated control to heating and cooling speed, can't guarantee the quenching precision of stipulating.
Owing in clamping bending machining, produced the problems referred to above, therefore in TOHKEMY 2000-158048 communique, proposed a kind of based on the high-frequency heating bending machine that runs through bending machining, promptly a kind of can support the high-frequency heating bending machine of press-bending roller to the mode that 3 dimension directions move freely.Adopt the high-frequency heating bending machine of TOHKEMY 2000-158048 communique, the press-bending roller is striden across be bent the machining object machining object side that is bent round about and move, the press-bending roller is connected on this side it is carried out bending machining, therefore, even for example as the bending of S word bending direction under the situation of continuous bend different on 2 dimensions, also can not make the operation task that is bent machining object Rotate 180 degree.
But, high-frequency heating bending machine for TOHKEMY 2000-158048 communique, owing to there is not to clamp the mechanism that is bent the machining object two sides, the residual stress that cooling after the reason high-frequency heating produces and be easy to deform, therefore be difficult to guarantee the dimensional accuracy stipulated, restrict process velocity, and be difficult to improve the bending machining degree.
And, a kind of bender that runs through with such heating arrangements has been proposed: the press-bending roller that substitutes above-mentioned clamping bending machining and high-frequency heating bending machine in No. 3195083 communique of Japan Patent, the movable rotating mould that fixed die is set and can moves on 3 dimension directions is heated to hardware and the corresponding temperature of curvature of hardware being carried out bending machining by movable rotating mould by heating arrangements.
In the bender of No. 3195083 communique of Japan Patent, because fixed die and movable rotating mould are not the hardwares that rotatably keeps processed, therefore no matter be any in fixed die and the movable rotating mould, all produce burn on its surface easily.In addition, the bender of No. 3195083 communique of Japan Patent is supplied with cooling fluid in fixed die and movable rotating mould, avoided reducing and the reduction of the machining accuracy that thermal expansion causes by the intensity of two moulds, but do not attempt the hardware that is bent processing is carried out quenching heat treatment, and can't obtain high-intensity hardware by quenching.
As mentioned above, be accompanied by and restudy automobile,, require a kind of process technology of the metal material that constitutes by the complicated bend shape in order to be applied to diversified automobile parts with the structure of parts.On the other hand, if also consider the lightweight of metal material, preferably selected hot strength is the above metal material of 900MPa, the above metal material of more preferably selected 1300MPa level.In this case, be after metal pipe about 500～700MPa carries out bending machining as original material, to utilize heat treatment to improve its intensity, thereby obtain high-intensity metal material hot strength.
But, for the clamping bending machining that in Japanese kokai publication sho 50-59263 number and No. 2,816,000 two communiques of Japan Patent, proposes, because the change of the feed speed of metal pipe significantly, be difficult to cooling velocity is carried out complicated control, and can't guarantee to quench precision therefore can't prevent to produce uneven strain.Therefore, when curved shape produces deviation, in high-intensity metal material, also can produce the problem of delayed fracture, be not suitable as the automobile parts along with residual stress.
And, the bender that proposes in No. 3195083 communique of Japan Patent is based on running through bending machining, but be not to be intended to after low intensive metal pipe is carried out hot-working as original material, utilizing quenches improves intensity, and obtains high-intensity metal material.In addition,, produce burn on the surface of movable rotating mould easily, therefore require the thermal flexure processing unit (plant) is further improved along with metal material is heated.
Summary of the invention
The present invention promptly makes in view of the above problems, its purpose is to provide a kind of bend processing method of such metal material and can uses the bender and the bending machining equipment row of this processing method: even when metal material is carried out bending machining, require with the variation of the structure of parts along with automobile under the situation of complicated curved shape, even need carry out under the situation of bending machining high-intensity metal material, also can guarantee crooked precision, and operating efficiency is good.
In order to solve above-mentioned problem, metal material of the present invention run through bend processing method (push through bending processing), extrude the machined material that is keeping by supporting device one by one or continuously from upstream side on one side, carry out bending machining in the downstream of above-mentioned supporting device on one side, it is characterized in that, with the tight above-mentioned metal material of the mobile rollers die clamp that is located at above-mentioned supporting device downstream, in the position or translational speed of this movable roller die of control, use is configured in the input side of above-mentioned movable roller die, and be configured in the heating arrangements and the cooling body of above-mentioned metal material periphery, above-mentioned metallic material local is heated to the temperature province that can produce plastic deformation and can quench, and above-mentioned heating part applied moment of flexure, cool off this metal material then rapidly.
Promptly, when metal material is run through bending machining, clamp the downstream of metal material on one side and it is moved with constant speed, it is implemented heat treatment on one side, can guarantee the cooling velocity stipulated, can cool off equably and be bent finished metal material, although therefore can obtain the higher shape freezing of intensity also well, hardness even metal material.
For example, as concrete formation, utilize high frequency heating coil to be heated to A one by one continuously as the pipe of machined material 3Transformation temperature above and organize not can coarse temperature; and use movable roller die to make heated regional area plastic deformation; immediately the outer surface of pipe or surfaces externally and internally are sprayed cooling medium or other cooling fluid or gas or spraying based on water or oil afterwards, thereby can guarantee the cooling velocity that 100 ℃/sec is above.
In addition, the movable roller die that applies moment of flexure clamps metal material in movable roll shape mode, can suppress to result from the burn of die surface, therefore can carry out bending machining expeditiously.Equally, because supporting device is also rotatably keeping metal material, therefore can suppress to produce burn.
The bend processing method of the present invention's the 2nd embodiment, mobile rollers mould are useful on makes its shift mechanism that moves along the vertical direction, be used for making its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least a kind of the leaning device that tilts of direction to the left and right.Thus, even the curved shape complexity of metal material, for bending direction under the situation of continuous bend different on 2 dimensions (for example, S word bending), even be bending direction under the situation of continuous bend different on 3 dimensions, also can carry out bending machining expeditiously.
And in the bend processing method of the present invention's the 3rd embodiment, movable roller die can have and is used to make it along travel mechanism that fore-and-aft direction moves.Be used to make it along the travel mechanism that fore-and-aft direction moves by having,, also can guarantee best brachium L, therefore can avoid the maximization of processing unit (plant), thereby can guarantee the bending machining precision even under the less situation of the bending radius of metal material.
In addition, in the bend processing method of the present invention's the 4th embodiment, heating arrangements or cooling body can have be used for making its shift mechanism that moves along the vertical direction, be used to make its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least a kind of the leaning device that tilts of direction to the left and right.Can make the action of above-mentioned movable roller die and heating arrangements and cooling body synchronous,, and then can carry out high accuracy, uniform bending machining by their synchronization action.
And in the bend processing method of the present invention's the 5th embodiment, heating arrangements or cooling body can have and be used to make it along travel mechanism that fore-and-aft direction moves.By making heating arrangements travel mechanism such as have, can guarantee its with the basis of the synchronism of movable roller die on, can when the beginning bending machining, heat, and can improve installations, operation and operability when dismantling metal tube the metal tube front end.
In the bend processing method of the present invention's the 6th embodiment, movable roller die can also have and is used to make it at the week rotating mechanism of rotation upwards.Can be bending direction at curved shapes different on 2 dimensions or bending direction on the basis of curved shapes different on 3 dimensions at metal material, metal material is applied torsional deflection.
In the bend processing method of the present invention's the 7th embodiment, the pressurizing unit that is located at the metal material upstream side can have is controlling the mechanism that machined material upwards rotated in week.Even under the situation of the rotating mechanism that does not use above-mentioned movable roller die, can be bending direction at curved shapes different on 2 dimensions or bending direction on the basis of curved shapes different on 3 dimensions also at metal material, metal material is applied torsional deflection.
In the bend processing method of the present invention's the 8th embodiment, supporting device can also have and is used to make it at the week rotating mechanism of rotation upwards, can make its with rotation of extruding feed arrangement synchronously in upwards rotation of week.When making the metal material torsional deflection, do not make movable roller die in upwards rotation of week, and make supporting device synchronously the rearward end of metal material be reversed, thereby can apply high-precision torsional deflection it by the rotating mechanism of pressurizing unit.Certainly, even,, also can apply high-precision torsional deflection to it Yi Bian make supporting device synchronously the rearward end of metal material relatively be reversed by the rotating mechanism of pressurizing unit Yi Bian make movable roller die in upwards rotation of week.
In the bend processing method of the present invention's the 9th embodiment, movable roller die can also have the driving rotating mechanism of roller, this roller is applied to drive by drive motor etc. according to the amount of feeding of above-mentioned extruding feed arrangement to make its rotation.That is, when the unequipped driving rotating mechanism of movable roller die, the rotation of this roller is sometimes only driven by frictional resistance, and compression stress acts on the bending machining part, and all sides make the wall thickness of increase become big in crooked, or generation is buckled.Particularly, when machined material is thin-walled material, might cause bending machining difficulty or machining accuracy variation thus.
With respect to this, come the compression stress of abirritation if drive rotating mechanism in the bending machining part by equipment on movable roller die, and control the roller rotary speed of movable roller die according to the amount of feeding of extruding feed arrangement, make that this roller rotary speed and this amount of feeding are synchronous, then also can partly apply tensile stress to bending machining, enlarge the scope that to carry out bending machining, also can improve the machining accuracy of product.
In the bend processing method of the present invention's the 10th embodiment, can constitute movable roller die by 2 rollers, 3 rollers or 4 rollers, and in the bend processing method of the 11st embodiment, also the metal material that is carried out bending machining can be made closed cross-section material, open cross-sections material, profiled-cross-section material or the bar that constitutes by various cross sectional shapes.Can design the roll shape mode of movable roller die with the cross sectional shape of the metal material that becomes machined material accordingly.
In the bend processing method of the present invention's the 12nd embodiment, have preheating mechanism more than at least 1 at the upstream side of heating arrangements, for preheating mechanism, can carry out two sections heating or inhomogeneous heating to metal material.Using for the preheating means under the situation of multistage heating, can the dispersed metal material heating load, thereby can improve bending machining efficient.
On the other hand, metal material is carried out under the situation of inhomogeneous heating using for the preheating means, temperature according to the heating part of the bending direction control metal material of the metal material that produces by movable roller die for example makes the temperature of its crooked inner surface side be lower than the temperature of its crooked outer surface side.By constituting the heating part of metal material in this wise, the crackle that can prevent to result from the fold of crooked inner surface side and result from the curved exterior surface side.
In the bend processing method of the present invention's the 13rd embodiment, pack into the inner surface of metal material of axle is used as cooling body, can supply with cooling medium individually with the cooling body that is configured in the metal material periphery or with axle with axle.Particularly, be effective for the cooling velocity of guaranteeing thick-wall materials.
In the bend processing method of the present invention's the 14th embodiment, can make the cooling medium of being supplied with by cooling body is main component with water, and contains antirust agent.When sliding part is soaked by the cooling water of being supplied with by cooling body, in cooling water, do not contain under the situation of antirust agent and can get rusty, consider to have produced bad from the aspect of protecting machinery, therefore containing antirust agent in cooling water is being effective aspect the protection machinery.
And can make the cooling medium of being supplied with by cooling body is main component with water, and contains quenching medium.For example, as quenching medium is known a kind of material of sneaking into the organic polymer agent arranged.By sneaking into the quenching medium of normal concentration, can adjust cooling velocity, and guarantee stable quenching performance.
In the bend processing method of the present invention's the 15th embodiment, can be to movable roller die supply of lubricant or cooling fluid.When movable roller die has been supplied with lubricant,, also can reduce and burn by lubrication even be involved at movable roller die under the situation of oxide skin of the heating part that results from metal material.
In addition, when movable roller die has been supplied with cooling fluid, therefore the fluid cooling that can be cooled of movable roller die can prevent that the intensity of movable roller die from reducing, prevent the reduction of the machining accuracy that the thermal expansion by movable roller die causes, and prevent to produce burn on movable roller die surface.
And, in the bend processing method of the present invention's the 16th embodiment, be provided with the revolute robot in the joint that having more than at least 1 can rotate around the axis, can utilize above-mentioned revolute robot to carry out the action more than at least 1 in shift mechanism, leaning device and the travel mechanism of movable roller die and heating arrangements or cooling body.
By using the revolute robot, when metal tube is carried out bending machining, can movable roller die, heating arrangements and cooling body is needed, manipulation device carried out along the vertical direction or the shift motion of left and right directions, the tilting action that tilts of direction or left and right directions or be made as a succession of action based on control signal along the shift action that fore-and-aft direction moves up and down, can improve bending machining efficient, and realize the miniaturization of processing unit (plant).
In order to use the bend processing method that runs through of above-mentioned metal material, in bender of the present invention, have the supporting device that is used for rotatably keeping machined material and from upstream side one by one or continuously feeding move the pressurizing unit of above-mentioned machined material, with cooperate by the feeding mobile phase of above-mentioned pressurizing unit above-mentioned machined material, bending machining is carried out to it in downstream at above-mentioned supporting device, it is characterized in that having movable roller die, heating arrangements and cooling body; This movable roller die is located at the downstream of above-mentioned supporting device, clamps above-mentioned metal material, and controls this clamped position or/and translational speed; Above-mentioned heating arrangements is configured in the input side of above-mentioned movable roller die and is configured in the periphery of above-mentioned metal material, above-mentioned metallic material local is heated to the temperature province that can produce plastic deformation and can quench; Above-mentioned cooling body is configured in the input side of movable rotating mould and is configured in the periphery of above-mentioned metal material, and the above-mentioned metal material that the heating part has been applied in moment of flexure cools off rapidly.
In addition, bending machining equipment row of the present invention are characterised in that, in order to be used as the pipe high efficiency that machined material supplies with and to manufacture the bending machining product at an easy rate, dispose the bender of metal material given to this invention continuously at the outlet side of electric welded steel pipe manufacturing line, this electric welded steel pipe manufacturing line has uncoiler, builder, welding mechanism and post processing mechanism; This uncoiler is emitted banded steel plate continuously; The banded steel plate that this builder will be emitted is configured as the pipe of regulation cross sectional shape; The both side edges welding of the banded steel plate that this welding mechanism will dock and form continuous pipe; This post processing mechanism carries out the weld seam cutting, and carries out after annealing as required or it is carried out shaping.
In addition, bending machining equipment row of the present invention are characterised in that, in order to be used as the open cross-sections material high efficiency that machined material supplies with and to manufacture the bending machining product at an easy rate, dispose the bender of metal material given to this invention continuously at the outlet side of roll forming production line, this roll forming production line has uncoiler and builder; This uncoiler is emitted banded steel plate continuously; The banded steel plate that this builder will be emitted is configured as the regulation cross sectional shape.
In addition, bending machining product of the present invention is characterised in that, by the bend processing method of above-mentioned metal material or by the bender that uses above-mentioned metal material above-mentioned metal material is processed heat treatment, thereby the hot strength of bending machining product of the present invention is more than the 900MPa.
Adopt the bend processing method and the bender of metal material of the present invention, and bending machining equipment row, even requiring complicated curved shape, different continuous bend is (for example on 2 dimensions to process metal material and be bending direction, the bending of S word), or bending direction is under the situation of continuous bend different on 3 dimensions, even even need carry out under the situation of bending machining to high-intensity metal material, therefore metal material also can be cooled off equably, although can high efficiency and to obtain intensity height shape freezing at an easy rate also good, metal material with hardness distribution of regulation.
And, because movable roller die rotatably clamps metal material, therefore can suppress to result from the burn of die surface, and can guarantee the bending machining precision, and can carry out operating efficiency good run through bending machining.Thus, can be used as the automobile part bending processing technology of further High Level and extensive use.
Description of drawings
Fig. 1 is the figure of the unitary construction of the expression bender that is used to implement to run through bending machining of the present invention.
Fig. 2 is that expression can be as the figure of the cross sectional shape of the machined material of metal material of the present invention, (a) passage of the open cross-sections material made with roll forming etc. of expression, (b) passage of the profiled-cross-section material made with extrusion process of expression.
Fig. 3 is that expression can be as the figure of the formation example of the supporting guiding piece of supporting device of the present invention, and (a) cross-sectional configuration of expression supporting guiding piece and the rotating mechanism that had thereof (b) represents to support the exterior structure of guiding piece with stereogram.
Fig. 4 is the figure of device construction of the main processing part of explanation bender of the present invention.
Fig. 5 is the figure that the summary of expression heater that bender of the present invention adopted and cooling device constitutes example.
Fig. 6 is expression is encased in the structure of the axle in closed cross-section material (metal pipe material) inner surface in order to ensure the cooling velocity of thick-wall materials figure.
Fig. 7 is that movable roller die that explanation is used to bender of the present invention is adopted reaches the shift mechanism that left and right directions moves along the vertical direction and is used to make movable roller die at the week figure of the formation example of the rotating mechanism of rotation upwards.
Fig. 8 is that explanation is used to make movable roller die that bender of the present invention the adopts figure along the effect of the travel mechanism that fore-and-aft direction moves.
Fig. 9 is the figure of the shape example of the expression movable roller die that bender of the present invention adopted, (a) be the shape that movable roller die is made of 2 rollers when being illustrated in metal material and being closed cross-section materials such as pipe, (b) being the shape that movable roller die is made of 2 rollers when being illustrated in closed cross-section material that metal material is rectangular tube etc. or passage open cross-sections materials such as (openings), (c) is the shape that movable roller die is made of 4 rollers when being illustrated in metal material and being profiled-cross-section materials such as closed cross-section materials such as rectangular tube or passage.
Figure 10 is the figure that the effect when using preheating device that metal material is carried out inhomogeneous heating is described.
Figure 11 is that expression can be applicable to revolute robot's the unitary construction of bender of the present invention and the figure of configuration.
Figure 12 is that other of the expression revolute robot that is applied to bender of the present invention constitute the figure of examples.
Figure 13 is the figure of unitary construction that expression is used to make electric welded steel pipe (the electricalresistance welded steel pipe) manufacturing line of machined material.
Figure 14 is the figure of the unitary construction of the expression roll forming production line that is used to make machined material.
The specific embodiment
Embodiments of the present invention are divided into whole formation and the configuration example of supporting device, the formation that adds the Ministry of worker and heating, the formation example of cooling device, formation, preheating mechanism and the effect thereof of movable roller die, revolute robot's structure configuration and the feature of bending machining equipment row, describe with reference to the accompanying drawings.
1. the formation example of whole formation and supporting device
Fig. 1 is the figure that the expression integral body that is used to implement to run through the bender of bending machining of the present invention constitutes.Bending machining of the present invention is on one side to extrude the machined material that is supported mechanism 2 and rotatably keeping one by one or continuously, be metal material 1 from upstream side, in the downstream of supporting device 2 it carried out the run through bend processing method of bending machining on one side.
The cross sectional shape of metal material 1 shown in Figure 1 is circular (pipe), but is not limited thereto, and can use the machined material that is made of various cross sectional shapes.For example, except circle shown in Figure 1 (pipe), can use have rectangle, the closed cross-section material of trapezoidal or complicated shape, the profiled-cross-section material made from the open cross-sections material (passage) of manufacturings such as roll forming, with extrusion process (passage) or the bar (pole, square bar, special-shaped rod) that constitutes by various cross sectional shapes etc.
Fig. 2 is the figure of cross sectional shape that expression can be used as the machined material of metal material of the present invention, (a) passage of the open cross-sections material made with roll forming etc. of expression, (b) passage of the profiled-cross-section material made with extrusion process of expression.In bender of the present invention, need design the shape of movable roller die and supporting device according to the cross sectional shape of the metal material of using.
Device shown in Figure 1 constitutes, dispose two pairs of supporting devices 2 that are used for rotatably keeping metal material 1, and side disposes one by one or the pressurizing unit 3 of feeding moving metal material 1 continuously at its upstream, on the other hand, dispose in the downstream of two pairs of supporting devices 2 and be used to the movable roller die 4 that clamps metal material 1 and control this clamped position or translational speed.And, input side at movable roller die 4 disposes high frequency heating coil 5 and cooling device 6, high frequency heating coil 5 is configured in the periphery of metal material 1, and it is carried out local heat, and the metal material 1 that cooling device 6 is used for the heating part has been applied in moment of flexure cools off rapidly.
Owing in device shown in Figure 1, used the metal material of cross sectional shape for circular (pipe), therefore backing roll is used as supporting device 2, but is not limited thereto, can adopt the supporting guiding piece according to the cross sectional shape of employed metal material.In addition, as shown in Figure 1,, be not defined as by two pairs of backing rolls yet and constitute supporting device 2, can or constitute supporting device 2 to backing roll by 1 pair greater than two couples many even adopting under the situation of backing roll.
Fig. 3 is that expression can be as the figure of the formation example of the supporting guiding piece of supporting device of the present invention, and (a) cross-sectional configuration of expression supporting guiding piece and the rotating mechanism that had thereof (b) represents to support the exterior structure of guiding piece with stereogram.Supporting guiding piece 2 shown in Figure 3 is as machined material with four directions pipe 1, and with the mode that can make its rotation structure with its maintenance, but, therefore be provided with and prevent the mechanism of heating because it is provided with near heating arrangements (above-mentioned high frequency heating coil shown in Figure 1 5).As the mechanism that prevents to heat, can form by the nonmagnetic substance manufacturing, shown in Fig. 3 (b), this is prevented that the mechanism of heating is divided into 2 parts or more parts, the method that teflon insulants such as (registration marks) is installed at divided position is for preventing that heating from being effective.
Be provided with the rotating mechanism that is directly connected in supporting guiding piece 2 and constitutes by drive motor 10 and swing pinion 10a, as described later, supporting guiding piece 2 can synchronously rotate in a circumferential direction on the edge with the rotation of pressurizing unit, thereby can apply the higher distortion of precision when making metal material 1 torsional deflection.
In bender of the present invention, backing roll shown in Figure 1, and supporting guiding piece shown in Figure 3 all can be used as the supporting device of metal material 1, but in order to meet the following description, expression is used as metal material with pipe, and embodiment and effect thereof under the situation of employing backing roll.But in the present invention, self-evident, substituting pipe with other closed cross-section material, open cross-sections material, profiled-cross-section material or bar as under the situation of metal material, or alternative backing roll and adopting under the situation of supporting guiding piece also can obtain same effect.
2. the formation example that adds the formation of the Ministry of worker and heating, cooling device
Fig. 4 is the figure of device construction of the main processing part of explanation bender of the present invention.Dispose two pairs of backing rolls 2 that are used to keep metal material 1, and dispose movable roller die 4, dispose high frequency heating coil 5 and cooling device 6 at the input side of movable roller die 4 in its downstream.And preheating device 5a is located between two pairs of backing rolls 2, and the feedway 8 of lubricant is configured in the position of the movable roller die input side of next-door neighbour.
In device construction shown in Figure 4, clamp the metal material 1 that has passed through two pairs of backing rolls 2 with movable roller die 4, in this clamped position of control or translational speed, use is disposed at the high frequency heating coil 5 and the cooling device 6 of metal material 1 periphery, metal material 1 is carried out local heat and it is carried out bending machining, then it is cooled off rapidly.When carrying out this bending machining, the metal material 1 that has passed through backing roll 2 is heated by high frequency heating coil 5, thereby the yield point of bending machining portion of being carried out the metal material 1 of bending machining by movable roller die 4 is reduced, and deformation drag reduces, and therefore easily metal material 1 is carried out bending machining.
And,,, also can be suppressed at die surface and produce burn even for the metal material 1 after the heating because movable roller die 4 clamps metal material 1 in movable roll shape mode.And, because to movable roller die supply of lubricant,, also can reduce and burn by lubrication to die surface even therefore under the situation of the oxide skin that has been involved in the heating part that results from metal material 1.
In addition, among bender of the present invention, owing to can supply with cooling fluid to movable roller die 4, the fluid cooling so movable roller die 4 can be cooled, the intensity that therefore can prevent movable roller die reduces, prevent the reduction of the machining accuracy that the thermal expansion by movable roller die causes, and prevent to produce burn on movable roller die surface.
Fig. 5 is the figure that the summary of expression heater that bender of the present invention adopted and cooling device constitutes example.At the high frequency heating coil 5 of the periphery of the metal material that should form heating part configuration ring-type, and metallic material local is heated to the temperature that can produce plastic deformation.Then, after the effect that utilizes movable roller die has applied moment of flexure to the heating part, spray cooling mediums and quench by cooling device 6.Metal material before the high-frequency heating is kept by two pairs of backing rolls.In the present example, represent to make the incorporate example of heater and cooling device, certainly, also can be equipped with heater coil and cooling device respectively.
Adopt such method, metal material can be heated to A one by one continuously 3Transformation temperature above and organize not can coarse temperature, and use movable roller die to make local heating part plastic deformation, immediately it is sprayed cooling medium afterwards, thereby can guarantee the cooling velocity that 100 ℃/sec is above.
Therefore, the metal material that has been implemented bending machining can be guaranteed good shape freezing and stabilized quality.For example, even low intensive raw material metal is being carried out under the situation of bending machining it as original material, can improve intensity with quenching uniformly, thereby the acquisition hot strength is the above metal material of 900MPa and is equivalent to the above metal material of 1300MPa level.
When metal material is heavy wall, sometimes be difficult to guarantee the cooling velocity that 100 ℃/sec is above, when metal material was closed cross-section materials (metal pipe material) such as pipe, rectangular tube or laddertron, the inner surface of the closed cross-section material of axle can being packed into was used as cooling body.
Fig. 6 is expression is encased in the structure of the axle in the inner surface of closed cross-section material (metal pipe material) in order to ensure the cooling velocity of thick-wall materials figure.When the closed cross-section material is heavy wall, axle 6a its inner surface of packing into is used as cooling body, can synchronously supply with cooling medium with the cooling body 6 that is disposed at metal material 1 periphery, to guarantee cooling velocity.In this case, need only inner surface, preferably make axle 6a with nonmagnetic material or refractory substance with liquid or spraying cool metal material 1.
In bender of the present invention, preferably making the cooling medium of being supplied with by cooling body 6 is main component with water, and contains antirust agent.When the cooling water that is supplied at the sliding part of processing unit (plant) soaks, in cooling water, do not contain under the situation of antirust agent and can get rusty, and can become the critical defect of device, therefore in cooling water, contain method of rust from protect machinery aspect consider it is effective.
And preferably making the cooling medium of being supplied with by cooling body is main component with water, and contains quenching medium.For example, as quenching medium is known a kind of material of sneaking into the organic polymer agent arranged.By sneaking into the quenching medium of normal concentration, can adjust cooling velocity, and guarantee stable quenching performance.
3. the formation of movable roller die
Fig. 7 is that movable roller die that explanation is used to bender of the present invention is adopted reaches the shift mechanism that left and right directions moves along the vertical direction and is used to make it at week figure of the formation example of the rotating mechanism of rotation upwards.Metal material (pipe) 1 quilt as machined material is clamped by the movable roller die 4 that 4 rollers are constituted.The shift mechanism of Yi Donging is driven by drive motor 8 along the vertical direction, and the shift mechanism that moves along left and right directions is driven by drive motor 9.In addition, the rotating mechanism that moves is vertically driven by drive motor 10.
In Fig. 7, expression is used to make movable roller die 4 structure of the leaning device that tilts of direction and left and right directions up and down, but needn't limit especially for the structure of leaning device of the present invention, so long as habitual structure gets final product.
Fig. 8 is that explanation is used to make movable roller die that bender of the present invention the adopts figure along the effect of the travel mechanism that fore-and-aft direction moves.As shown in Figure 8, with brachium (processing length of metal material) when being made as L, the needed moment M of bending machining is by note (A) formula decision down.
M＝P×L＝P×Rsinθ...?(A)
Therefore, brachium L is big more, and the power P that acts on pinch roll (movable roller die) 4 is more little.That is, when with bending radius from minor diameter to the large diameter range of work when being object, under the situation that movable roller die 4 is moved along fore-and-aft direction, being used for bending radius is that the operating force P that the metal material 1 of minor diameter is processed is restricted by equipment.Therefore, cooperation is that processing that the metal material 1 of minor diameter carries out is when getting bigger brachium L to bending radius, be that large diameter metal material adds man-hour to bending radius, the shift mechanism of movable roller die and leaning device need bigger stroke, and processing unit (plant) maximizes.
On the other hand, consider the situation that stops precision and admissible error (working clearance) of processing unit (plant), when having shortened brachium L, the machining accuracy variation.Therefore, if movable roller die 4 is moved along fore-and-aft direction, then can select best brachium L, thereby can enlarge the range of work according to the bending radius of metal material 1.And, in this case, processing unit (plant) is maximized, just can guarantee machining accuracy fully.
Equally, in bender of the present invention, can have and also make thermatron and cooling device respectively individually or jointly along travel mechanism that fore-and-aft direction moves.Thus, on the basis of the synchronism that can guarantee this thermatron and cooling device and movable roller die, can when the beginning bending machining, heat, and can improve installation, operation and operability when dismantling metal tube the metal tube front end.
Fig. 9 is the figure of the shape example of the expression movable roller die that bender of the present invention adopted, (a) be the shape that movable roller die is made of 2 rollers when being illustrated in metal material and being closed cross-section materials such as pipe, (b) being the shape that movable roller die is made of 2 rollers when being illustrated in metal material and being open cross-sections materials such as closed cross-section materials such as rectangular tube or passage, (c) is the shape that movable roller die is made of 4 rollers when being illustrated in metal material and being profiled-cross-section materials such as closed cross-section materials such as rectangular tube or passage.
As shown in Figure 9, can design the roll shape mode of movable roller die 4, except constituting, can constitute movable roller die by 3 rollers by 2 rollers or 4 rollers according to the cross sectional shape of metal material 1.Usually, the cross sectional shape that carries out the metal material of bending machining can be made have circle, the closed cross-section shape of rectangle, trapezoidal or complicated shape, the open cross-sections shape of making by roll forming etc. or the profiled-cross-section shape of making by extrusion process, but shown in Fig. 9 (c), cross sectional shape at metal material 1 is essentially under the situation of rectangle, preferably constitutes movable roller die by 4 rollers.
As above-mentioned shown in Figure 7, in processing unit (plant) of the present invention,, can on movable roller die 4, be arranged on the rotating mechanism that upwards rotates in week for metal material is applied torsional deflection.Simultaneously, though do not represent in above-mentioned Fig. 1, pressurizing unit 3 can be provided with can control metal material 1 and make it in the week clamp mechanism 7 of rotation upwards, and has rotating mechanism.
Therefore, when metal material being applied torsional deflection, can adopt this dual mode: use the rotating mechanism of movable roller die to make the mode of the leading section torsional deflection of metal material with processing unit (plant) of the present invention; The rotating mechanism of use pressurizing unit makes the mode of the rearward end torsional deflection of metal material.Usually; can become small-sized device construction when adopt using the mode of rotating mechanism of pressurizing unit; to this; as above-mentioned shown in Figure 7; mode for the rotating mechanism that uses movable roller die; the possibility that has extensiveization of device construction, but no matter be which kind of method, can apply torsional deflection to metal material.
In bender of the present invention, also be provided with the rotating mechanism that upwards rotates in week, thereby can synchronously make metal material with the rotation of extruding feed arrangement in upwards rotation of week at supporting device (backing roll or supporting guiding piece).When the metal material torsional deflection, no matter employing use the rotating mechanism of movable roller die make metal material the leading section torsional deflection mode or use the rotating mechanism of pressurizing unit to make in the mode of rearward end torsional deflection of metal material any, can apply high-precision torsional deflection to metal material by the synchronous rotation of supporting device.
In bender of the present invention, also on movable roller die, equipped the driving rotating mechanism of roller, thereby can make its rotation by this roller of drivings such as drive motor according to the amount of feeding of above-mentioned extruding feed arrangement.Promptly, if abirritation is in the compression stress of bending machining part, and control the roller rotary speed of movable roller die according to the amount of feeding of extruding feed arrangement, make synchronous with it, then also can partly apply tensile stress to bending machining, enlarge the scope that to carry out bending machining, also can improve the machining accuracy of product.
4. preheating mechanism and effect thereof
In bender of the present invention, have preheating device at the upstream side of heater, in preheating device, can carry out two sections or the more heating or the inhomogeneous heating of multistage to metal material.Using for the preheating means under the situation of multistage heating, can the dispersed metal material heating load, thereby can improve bending machining efficient.
Figure 10 is the figure that the effect when using preheating device that metal material is carried out inhomogeneous heating is described.As preheating device, when using preheating metal material 1 to be carried out inhomogeneous heating with high frequency heating coil 5a, bending direction according to the metal material that determines by movable roller die, metal material 1 is setovered in high frequency heating coil 5a in preheating, the temperature of the heating part of control metal material 1 is so that the temperature of its crooked inner surface side is lower than the temperature of crooked outer surface side.
Specifically, in Figure 10, the A side that makes metal material 1 is near preheating high frequency heating coil 5a, and makes the hull-skin temperature of the A side that is equivalent to the crooked outer surface side be higher than the hull-skin temperature of the B side that is equivalent to the crooked inner surface side.By constituting the heating part of metal material 1 in this wise, the crackle that can prevent to result from the fold of curved inner surface side effectively and result from the curved exterior surface side.
In bender of the present invention, can be to movable roller die supply of lubricant.Thus, even be involved at movable roller die under the situation of oxide skin of the heating part that results from metal material, also can reduce scorch takes place by lubrication.
Equally, in bender of the present invention, can supply with cooling fluid to movable roller die.Near inside and the position that clamping metal material of movable roller die, cooling tubing is set, supply with cooling fluid to movable roller die, thereby cool off movable roller die by cooling fluid, the intensity that therefore can prevent movable roller die reduces, prevent the reduction of the machining accuracy that the thermal expansion by movable roller die causes, and prevent to produce burn on movable roller die surface.
5. revolute robot's structure configuration
Figure 11 is that expression can be applicable to revolute robot's the unitary construction of bender of the present invention and the figure of configuration.As shown in figure 11, can dispose the revolute robot 11 of movable roller die 4 usefulness in the downstream of bender.
The revolute robot 11 that movable roller die is used is configured to, and has 16,17,18,3 joints, 13,14,15 and 3 joints of 12,3 arms of stationary plane 16,17,18 of being fixed in the scope of operation and connects each arm 13,14,15, and can rotate around the axis.And movable roller die 4 is installed on revolute robot 11 the arm 15 of front end.
Figure 12 is that other of the expression revolute robot that is applied to bender of the present invention constitute the figure of examples.In above-mentioned bender shown in Figure 11, only dispose the revolute robot that movable roller die is used, but heater and cooling device usefulness revolute robot 11 can be set simultaneously in the lump.By the revolute robot is set in the lump, can further improve the efficient of bending machining.
In bender of the present invention, revolute robot more than 1, that have 3 joints that can rotate around the axis is set at least, thereby can be when metal material be carried out bending machining, with actions such as that shift mechanism, leaning device and travel mechanism on the movable roller die 4 carried out was flexible, rotation, translations, promptly add up to 6 kinds the action that manipulation device carried out to be made as a series of action based on control signal.Thus, the efficient of bending machining can be improved, and the processing unit (plant) miniaturization can be made.
6. bending machining equipment is listed as
As mentioned above, as the machined material that is provided for bender of the present invention, can use closed cross-section material or open cross-sections material with shapes such as circles.Mostly with the closed cross-section material of electric welded steel pipe as pipe, most simultaneously steel with roll forming were used as the open cross-sections material in the past.
Figure 13 is the figure of the unitary construction of the expression electric welded steel pipe manufacturing line that is used to make machined material.Electric welded steel pipe manufacturing line 19 is the devices that are used for banded steel plate 20 is made steel pipe.As the device construction of making for this reason, be provided with uncoiler 21, builder 22, welding mechanism 23, post processing mechanism 24 and shut-off mechanism 25 continuously; Uncoiler 21 is emitted banded steel plate 20 continuously from banded steel plate roller; Builder 22 has many roller forming machines, and this roller forming machine makes the banded steel plate 20 of emitting be configured as the pipe of regulation cross sectional shape; Welding mechanism 23 has heat sealing machine, and this heat sealing machine will form tubulose and the mutually both side edges welding of the banded steel plate of butt joint and form continuous pipe; Post processing mechanism 24 has weld seam topping machanism and after annealing device (post-annealing), further continuous pipe is made needed size; Shut-off mechanism 25 has the movable cutting-off machine that this pipe that is made into required size is cut to needed length.
Figure 14 is the figure of the unitary construction of the expression roll forming production line that is used to make machined material.Roll forming production line 26 is to be used to make banded steel plate 20 to be configured as the device of regulation shape.Therefore, constitute by uncoiler 21, builder 27 and shut-off mechanism 28; Uncoiler 21 is being reeled as the banded steel plate 20 of metal material, and emits this band shape steel plate 20; Builder 27 has the roller forming machine, and this roller forming machine makes the banded steel plate 20 of being emitted by this uncoiler 21 be configured as the regulation shape; Shut-off mechanism 28 has movable cutting-off machine, and this movable cutting-off machine will cut into the length dimension of regulation continuously by the banded steel plate 20 that this forming machine is configured as the regulation shape.
The metal material that the machined material that utilizes electric welded steel pipe manufacturing line 19 shown in Figure 13 or roll forming production line 26 shown in Figure 14 to produce is used as processing usefulness supplies to bender, but when each production line separates with device and is independent, because of the difference of the processing speed between production line and the device, the place that need guarantee to store machined material.In addition, owing to need between each production line and device, carry machined material, therefore the auxiliary haulage equipment and the mechanism of crane, truck etc. need be set.
In bender of the present invention, dispose continuously by outlet side at above-mentioned electric welded steel pipe manufacturing line 19 or roll forming production line 26, can make the equipment row miniaturization of confession to the integral body of machined material till the bender, and by setting operation condition suitably, can high efficiency and produce the good bending machining product of precision at an easy rate.
The industry utilizability
Adopt the bend processing method of metal material of the present invention and bender, And bending machining equipment row, even requiring complicated shape, process metal material For bending direction on 2 dimensions different continuous bend (for example, S word bending) or Bending direction is in the situation of continuous bend different on 3 dimensions, even even at need Carry out in the situation of bending machining high-intensity metal material, metal material also can Being cooled off equably, although therefore can high efficiency and obtain at an easy rate the high shape of intensity The shape property freezed also well, have a metal material that uniform hardness distributes.
And, because movable roller die rotatably clamps metal material, can Suppress to result from the burn of die surface, it is hereby ensured the bending machining precision, and And can carry out operating efficiency good run through bending machining. Thus, can be used as into The bending processing technology of the automobile component of one step High Level and using widely.

Claims (36)

  1. A metal material run through bend processing method, on one side extrude the machined material that keeping by supporting device one by one or continuously, carry out bending machining in the downstream of above-mentioned supporting device on one side from upstream side, it is characterized in that,
    With the tight above-mentioned metal material of the mobile rollers die clamp that is located at above-mentioned supporting device downstream, in the position or translational speed of this movable roller die of control, use is configured in the input side of above-mentioned movable roller die and is configured in the heating arrangements and the cooling body of above-mentioned metal material periphery, above-mentioned metallic material local is heated to the temperature province that can produce plastic deformation and can quench, and above-mentioned heating part applied moment of flexure, then above-mentioned metal material is cooled off rapidly.
  2. 2. the bend processing method of metal material according to claim 1, it is characterized in that, above-mentioned mobile rollers mould is useful on makes its shift mechanism that moves along the vertical direction, be used for making its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least a kind of the leaning device that tilts of direction to the left and right.
  3. 3. the bend processing method of metal material according to claim 2 is characterized in that, above-mentioned movable roller die also has and is used to make it along travel mechanism that fore-and-aft direction moves.
  4. 4. the bend processing method of metal material according to claim 2, it is characterized in that, above-mentioned heating arrangements or cooling body have be used for making its shift mechanism that moves along the vertical direction, be used to make its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least a kind of the leaning device that tilts of direction to the left and right.
  5. 5. the bend processing method of metal material according to claim 4 is characterized in that, above-mentioned heating arrangements or cooling body also have and be used to make it along travel mechanism that fore-and-aft direction moves.
  6. 6. according to the bend processing method of each described metal material in the claim 1～5, it is characterized in that above-mentioned movable roller die also has and is used to make it at the week rotating mechanism of rotation upwards.
  7. 7. according to the bend processing method of each described metal material in the claim 1～6, it is characterized in that the pressurizing unit that is located at above-mentioned metal material upstream side has the mechanism of controlling machined material and it upwards being rotated in week.
  8. 8. the bend processing method of metal material according to claim 7, it is characterized in that, above-mentioned supporting device has and is used to make it at week rotating mechanism of rotation upwards, and the rotation of this supporting device and above-mentioned extruding feed arrangement is synchronously upwards rotated in week.
  9. 9. according to the bend processing method of each described metal material in the claim 1～8, it is characterized in that above-mentioned mobile rollers mould has the driving mechanism of roller, according to the amount of feeding of above-mentioned extruding feed arrangement this roller is applied to drive and make its rotation.
  10. 10. according to the bend processing method of each described metal material in the claim 1～9, it is characterized in that above-mentioned movable roller die is made of 2 rollers, 3 rollers or 4 rollers.
  11. 11. bend processing method according to each described metal material in the claim 1～10, it is characterized in that, be carried out closed cross-section material, open cross-sections material, profiled-cross-section material or the bar of metal material for constituting of bending machining by various cross sectional shapes.
  12. 12. the bend processing method according to each described metal material in the claim 1～11 is characterized in that, has preheating mechanism more than at least 1 at the upstream side of above-mentioned heating arrangements, and metal material is carried out multistage heating or inhomogeneous heating.
  13. 13. the bend processing method according to each described metal material in the claim 1～12 is characterized in that, pack into the inner surface of metal material of axle is used as cooling body, and supplies with cooling medium.
  14. 14. the bend processing method according to each described metal material in the claim 1～13 is characterized in that, making the cooling medium of being supplied with by above-mentioned cooling body is main component with water, and contains antirust agent or quenching medium.
  15. 15. the bend processing method according to each described metal material in the claim 1～14 is characterized in that, to above-mentioned mobile rollers mould supply of lubricant or cooling fluid.
  16. 16. bend processing method according to each described metal material in the claim 1～15, it is characterized in that, be provided with the revolute robot in the joint that having more than at least 1 can rotate around the axis, can carry out the action more than at least 1 in shift mechanism, leaning device and the travel mechanism of above-mentioned movable roller die and heating arrangements or cooling body with above-mentioned revolute robot.
  17. 17. a metal material run through bender, comprise the supporting device that is used to keep machined material and from upstream side one by one or continuously feeding move the pressurizing unit of above-mentioned machined material, with cooperate by the feeding mobile phase of above-mentioned pressurizing unit above-mentioned machined material, bending machining is carried out to above-mentioned machined material in downstream at above-mentioned supporting device, it is characterized in that, comprising:
    Movable roller die is located at the downstream of above-mentioned supporting device, clamps above-mentioned metal material, and controls this clamped position or/and translational speed;
    Heating arrangements is configured in the input side of above-mentioned movable roller die and is configured in the periphery of above-mentioned metal material, above-mentioned metallic material local is heated to the temperature province that can produce plastic deformation and can quench;
    Cooling body is configured in the input side of above-mentioned movable roller die and is configured in the periphery of above-mentioned metal material, and the above-mentioned metal material that the heating part has been applied in moment of flexure cools off rapidly.
  18. 18. the bender of metal material according to claim 17, it is characterized in that, above-mentioned mobile rollers mould is useful on makes its shift mechanism that moves along the vertical direction, be used for making its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least 1 of the leaning device that tilts of direction to the left and right.
  19. 19. the bender of metal material according to claim 17 is characterized in that, above-mentioned movable roller die also has and is used to make it along travel mechanism that fore-and-aft direction moves.
  20. 20. the bender of metal material according to claim 17, it is characterized in that, above-mentioned heating arrangements or cooling body have be used for making its shift mechanism that moves along the vertical direction, be used to make its shift mechanism that moves along left and right directions, be used to make its up and down the leaning device that tilts of direction and being used to make its mechanism more than at least a kind of the leaning device that tilts of direction to the left and right.
  21. 21. the bender of metal material according to claim 20 is characterized in that, above-mentioned heating arrangements or cooling body also have and are used to make it along travel mechanism that fore-and-aft direction moves.
  22. 22. the bender according to each described metal material in the claim 17～21 is characterized in that, above-mentioned movable roller die also has and is used to make it at the week rotating mechanism of rotation upwards.
  23. 23. the bender according to each described metal material in the claim 17～22 is characterized in that, above-mentioned pressurizing unit has the mechanism of controlling machined material and it upwards being rotated in week.
  24. 24. the bender of metal material according to claim 23 is characterized in that, above-mentioned supporting device have be used to make itself and above-mentioned extruding feed arrangement rotation synchronously at the week rotating mechanism of rotation upwards.
  25. 25. the bender according to each described metal material in the claim 17～24 is characterized in that, above-mentioned mobile rollers mould has driving mechanism, and this driving mechanism applies to drive according to the amount of feeding pair roller of above-mentioned extruding feed arrangement and makes its rotation.
  26. 26. the bender according to each described metal material in the claim 17～25 is characterized in that, above-mentioned movable roller die is made of 2 rollers, 3 rollers or 4 rollers.
  27. 27. bender according to each described metal material in the claim 17～26, it is characterized in that, be carried out closed cross-section material, open cross-sections material, profiled-cross-section material or the bar of metal material for constituting of bending machining by various cross sectional shapes.
  28. 28. the bender according to each described metal material in the claim 17～27 is characterized in that, has the preheating mechanism that metal material is carried out multistage heating or inhomogeneous heating at the upstream side of above-mentioned heating arrangements.
  29. 29. the bender according to each described metal material in the claim 17～28 is characterized in that, the inner surface that axle is disposed at metal material is used as cooling body, and supplies with cooling medium.
  30. 30. the bender according to each described metal material in the claim 17～29 is characterized in that, making the cooling medium of being supplied with by above-mentioned cooling body is main component with water, and contains antirust agent or quenching medium.
  31. 31. the bender according to each the described metal material in the claim 17～30 is characterized in that, has the mechanism to above-mentioned mobile rollers mould supply of lubricant or cooling fluid.
  32. 32. bender according to each the described metal material in the claim 17～31, it is characterized in that, revolute robot with joint that having more than at least 1 can rotate around the axis, this revolute robot carry out the action more than at least 1 in shift mechanism, leaning device and the travel mechanism of above-mentioned movable roller die and heating arrangements or cooling body.
  33. 33. bending machining equipment row is characterized in that, dispose the bender of each described metal material in the claim 17～32 continuously at the outlet side of electric welded steel pipe manufacturing line, this electric welded steel pipe manufacturing line comprises:
    Uncoiler is emitted banded steel plate continuously;
    Builder is configured as the banded steel plate of emitting the pipe of regulation cross sectional shape;
    Welding mechanism carries out the both side edges of banded steel plate of butt joint welding and forms continuous pipe;
    Post processing mechanism carries out the weld seam cutting, and carries out after annealing as required or it is carried out shaping.
  34. 34. bending machining equipment row is characterized in that, dispose the bender of each described metal material in the claim 17～32 continuously at the outlet side of roll forming production line, this roll forming production line comprises:
    Uncoiler is emitted banded steel plate continuously;
    Builder is configured as the regulation cross sectional shape with the banded steel plate of emitting.
  35. 35. a bending machining product is characterized in that, requiring the bend processing method of each described metal material in 1～16 to process heat treatment hot strength afterwards by aforesaid right is more than the 900MPa.
  36. 36. a bending machining product is characterized in that, uses aforesaid right to require the bender of each described metal material in 17～34 to process heat treatment hot strength afterwards as more than the 900MPa.
CN2006800069674A 2005-03-03 2006-02-23 Method for bending metal material, bending machine, bending-equipment line, and bent product thereof Active CN101132869B (en)

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CN104174727A (en) * 2013-05-23 2014-12-03 江苏汇能锅炉有限公司（丹阳锅炉辅机厂有限公司） Novel conveying and bending device of pipe bender
CN104364026A (en) * 2012-04-13 2015-02-18 杰富意钢铁株式会社 Device and method for producing flangeless closed-cross-section-structure component having curved shape
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