CN102847764A - Bending processing device for metal tube - Google Patents
Bending processing device for metal tube Download PDFInfo
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- CN102847764A CN102847764A CN2011102615346A CN201110261534A CN102847764A CN 102847764 A CN102847764 A CN 102847764A CN 2011102615346 A CN2011102615346 A CN 2011102615346A CN 201110261534 A CN201110261534 A CN 201110261534A CN 102847764 A CN102847764 A CN 102847764A
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- metal tube
- clamp arm
- chain
- bender
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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
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
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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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/162—Heating equipment
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides a bending processing device for a metal tube. The present invention aims at effectively exerting a large compressing force to a metal tube with a small output and a compact driving source without complicating compression control. The bending processing device for the metal tube comprises: a heating device used for heating the metal tube in a ring shape; a pushing device used for pushing the metal tube towards the heating device; an arm used for holding the metal tube and capable of rotating around a fulcrum shaft; and a compressing device used for exerting a compressing force to the metal tube by exerting a return force to the arm taking the fulcrum shaft as a fulcrum, wherein the return force is used for pulling back the arm rotating along with the metal tube pushed by the pushing device, the compressing device comprises a chain which is connected on the arm and arranged at a position at an outer side of a holding point of the metal tube observing from the fulcrum shaft, a hydraulic motor used for exerting the return force to an outer side position of the arm by means of the chain, and a chain guide rail used for guiding the chain in a circular arc shape along a round rail of the arm.
Description
Technical field
The present invention relates to the bender of metal tube, relate in particular to the technology that prevents that pipe thickness from reducing and carry out simultaneously the bending machining of metal tube.
Background technology
Now, metal tube as for delivery of the pipe of the fluids such as oil, gas and various liquid in the industrial plants such as complete set of equipments, factory and power plant, perhaps be widely used as the frame structure material of the buildings such as roof of bridge, sports ground etc.These metal tubes are because the pipe that manufactures in advance the regulation shape (straight tube or the shape tubes such as elbow, bend pipe) of Application standard, on the other hand, because the pipe (hereinafter referred to as " bend pipe ") that the pipe of linearity is carried out after the bending machining according to the construction object can be corresponding neatly with various curvature and pipe shape, thereby also be widely used.
On the other hand, when making bend pipe, just only will carry out with regard to the simple bending as raw-material straight tube, the outer circumferential side wall thickness attenuation of bent tube section might not satisfied this and manage desired intensity.So known have by on one side applying compression stress to tube axial direction in bending, Yi Bian process the technology (so-called bending compression) that prevents that this pipe thickness from reducing.
Fig. 5 is the figure that schematically represents the bender of this bending compression, this device shown in this figure has: heat in the form of a ring the heater coil 12 as the part of the metal tube 11 of processing object, with the propulsion plant (propulsion cylinder) 18 of metal tube to tube axial direction B propelling, control the clamp arm 13 that metal tube 11 also can rotate towards heater coil 12 centered by fulcrum 14.Utilize clamp arm (below, sometimes referred to as " arm ") 13 the place ahead parts of controlling the heating part of the metal tube 11 that is heated by heater coil 12 on one side, on one side along with the advancing of metal tube 11 that is advanced by propulsion plant 18 rotated this gripping point centered by fulcrum 14, thereby metal tube 11 is applied bending moment.
In addition, meanwhile, by will being that backhaul power G imposes on clamp arm 13 and metal tube 11 is applied compression stress to the rightabout power of direction of propulsion B with metal tube 11.Therefore, be provided with the drive unit different from propulsion plant 18 (hydraulic cylinder 41 of compression usefulness), utilize steel wire for example hydraulic cylinder 41 to be connected to the leading section of clamp arm 13.In addition, in Fig. 5, the movable base that label 16 expression can be moved at tube axial direction, label 17 expressions are placed on the rear portion clip at rear portion on this movable base 16, that control metal tube 11.
In addition, as the technical scheme that is associated with this bending compression, TOHKEMY 2009-12062 communique is arranged.
, in existing bending compression, as the drive unit that metal tube is applied compression stress, usually similarly use hydraulic cylinder with the drive unit that advances usefulness.
Yet, use the occasion of hydraulic cylinder at the drive unit as compression usefulness, even advance the hydraulic cylinder of usefulness that metal tube is bent to 90 °, the stroke that also only needs general curved half mass runoff, with respect to this, compression then needs to follow with hydraulic cylinder and bends to circular-arc metal tube and be equivalent to along the so long stroke of the distance of the circumference of bent tube section.Especially, because the larger then the trip of angle of bend and bending radius is longer, therefore in the occasion that consists of processing unit (plant), compression can not be used general (thereby being cheap) hydraulic cylinder with hydraulic cylinder, must use the hydraulic cylinder of specially-made long stroke special use quite a few so far.Therefore, the problem that exists time (delivery date is long) that the manufacturing of processing unit (plant) need to grow and manufacturing cost to increase.
In addition, in above-mentioned device shown in Figure 5, as shown in Figure 6 along with the carrying out of bending machining, change with clamp arm 13 angulations owing to connecting the hydraulic cylinder 41 of compression usefulness and the steel wire of clamp arm 13, thereby the relation of the output of the hydraulic cylinder 41 of compression usefulness (the tensile force G that is produced by this cylinder) and reality compression stress that metal tube 11 is applied is non-constant.Therefore, necessarily just need to change along with the carrying out of bending machining the output of hydraulic cylinder 41 of compression usefulness in order to make the compression stress that metal tube 11 is applied, the control of the hydraulic cylinder 41 of the compression usefulness complicated of having to.
On the other hand, for fear of aforesaid complex situations, can consider that also near the position the fulcrum 14 of clamp arm 13 applies backhaul power.
For example, as shown in Figure 7, as long as will be fixed on the pinion 42 of clamp arm 13 rotations on the axial region of clamp arm 13, by means of applying and the rightabout revolving force G of the direction of rotation of clamp arm 13 with the tooth bar 43 of these pinion 42 engagements and by hydraulic cylinder 41, just can produce compression stress to metal tube 11.In addition, as shown in Figure 8, also the sprocket wheel 44 with clamp arm 13 rotations can be installed on the axial region of clamp arm 13, similarly apply and the rightabout revolving force G of the direction of rotation of clamp arm 13 by means of chain 45 and by the method for hydraulic cylinder 41 with above-mentioned Fig. 7.
Yet, in these Fig. 7 and device shown in Figure 8, compare with the method for the above-mentioned Fig. 5 that can apply to the front end of clamp arm backhaul power, can see, this structure is disadvantageous for the situation of the large compression stress of needs, for example, in order to satisfy the requirement close to zero strict wall thickness reduction rate, there is the difficulty that to use the hydraulic cylinder with very large output as the hydraulic cylinder 41 of compression usefulness.
Summary of the invention
Therefore, the object of the invention is to not allow compression control complicated, can effectively apply this point of large compression stress to metal tube with little output and compact drive source.
Realize goal of the invention in order to address the above problem, the bender of metal tube of the present invention has: heat in the form of a ring the heater as the part of the metal tube of bending machining object; The propulsion plant that above-mentioned metal tube is advanced to tube axial direction towards this heater; Guiding device, this guiding device comprises the clamp arm that can control above-mentioned metal tube and rotate centered by fulcrum, utilize this clamp arm to control the place ahead part of the heating part of the metal tube that is heated by above-mentioned heater, and along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant this gripping point is rotated centered by above-mentioned fulcrum, thereby above-mentioned metal tube is applied bending moment; Compression set, this compression set is by applying backhaul power to above-mentioned metal tube effect compression stress take above-mentioned fulcrum as fulcrum to above-mentioned clamp arm, and the clamp arm that this backhaul power is used for rotating along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant retracts; Above-mentioned compression set comprises: be connected to above-mentioned clamp arm, observe than the gripping point of the above-mentioned metal tube connecting elements of position in the outer part from above-mentioned fulcrum side; And by means of the motor of this connecting elements to the above-mentioned backhaul power of above-mentioned outer fix effect of above-mentioned clamp arm.
In bender of the present invention, utilizing above-mentioned heater to advance this metal tube in the part of heating metal pipe in the form of a ring, simultaneously, the guiding by guiding device makes the metal tube that has passed through heater with bowing.
Specifically, take the direction of propulsion of metal tube in the situation in " the place ahead " (in the explanation in the application, towards the direction of propulsion of metal tube with the place ahead as " front ", with the rear as " afterwards "), the place ahead part of being controlled the heating part by clamp arm.This clamp arm is arranged to and can be rotated centered by fulcrum, and rotates along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant.In addition, above-mentioned grip portion is rotated centered by this fulcrum along with the rotation of this clamp arm, and the above-mentioned heating part of metal tube is applied bending moment, thus, and can be so that continuously plastic deformation and the mode that forms circular arc is carried out bending to metal tube of metal tube.In addition, the rear portion of metal tube is as long as can control by the rear portion clip on the movable base that above-mentioned heater is advanced by for example being arranged on, and above-mentioned propulsion plant advances metal tube to get final product by means of this movable base to heater.
On the other hand, by applying above-mentioned bending moment and apply compression stress to tube axial direction, thereby prevented the wall thickness attenuation (reducing of wall thickness) of pipe periphery.This compression stress is applied on the clamp arm by the backhaul power that the clamp arm that rotates along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant as naming a person for a particular job take above-mentioned fulcrum retracts, in other words, produce by the power that clamp arm is applied with the direction of rotation direction of clamp arm.
This compression set comprises the connecting elements that is connected with clamp arm, and by the motor of this connecting elements to the above-mentioned backhaul power of clamp arm effect.In the present invention, the drive unit that applies like this compression stress by conduct does not use hydraulic cylinder to use motor, thereby can eliminate the route problem (hydraulic cylinder that needs long stroke) of above-mentioned hydraulic cylinder.In addition, above-mentioned connecting elements be connected to above-mentioned clamp arm, observe gripping point position in the outer part than metal tube from the fulcrum side.This is because like this can be take fulcrum as fulcrum metal tube be applied to compression stress (with little backhaul power with large compression stress) on the metal tube effectively.
In addition, as preferred version, above-mentioned connecting elements is done chaining, the bender of above-mentioned metal tube also has along the convolution track of clamp arm and is the chain guide that guides this chain circular-arcly.
In addition, as above-mentioned " motor ", typically use hydraulic motor.But motor of the present invention is not limited to hydraulic motor, and the present invention does not also get rid of example if produce other drive unit of the such rotary power of electro-motor.
A scheme of the present invention is, in above-mentioned processing unit (plant), dispose the first sprocket wheel with above-mentioned chain engagement in an end side of the convolution track of the leading section of clamp arm, dispose the second sprocket wheel with above-mentioned chain engagement in the other end side of the convolution track of the leading section of above-mentioned clamp arm, above-mentioned chain is in the form of a ring around hanging between these first sprocket wheels and the second sprocket wheel, above-mentioned clamp arm is connected between above-mentioned the first sprocket wheel and the second sprocket wheel the side in two sections chain parts that extend in parallel to each other, connect said motor at above-mentioned the first sprocket wheel or above-mentioned the second sprocket wheel, thus, can utilize said motor and above-mentioned clamp arm is applied above-mentioned backhaul power by above-mentioned chain part.
In addition, another scheme of the present invention is, one end of above-mentioned chain is fixed on the end side of convolution track of the leading section of above-mentioned clamp arm, and the other end of above-mentioned chain is fixed on the other end side of convolution track of the leading section of above-mentioned clamp arm, leading section at above-mentioned clamp arm has the sprocket wheel that meshes and rotate along with the convolution of above-mentioned clamp arm with this chain, leading section at above-mentioned clamp arm has said motor, thereby can to this sprocket wheel apply overcome that above-mentioned sprocket wheel rotates along with the rotation of above-mentioned clamp arm revolving force, thus, can apply above-mentioned backhaul power to above-mentioned clamp arm.
Have, preferred structure of the present invention is again, above-mentioned fulcrum extends along vertical direction, and above-mentioned clamp arm flatly rotates along with the propelling of above-mentioned metal tube and guides this metal tube.In addition, also gear suitably can be contained between the output shaft and sprocket wheel of said motor, if regulate (increasings) this gear ratio just the motor of the enough little power outputs of energy metal tube is applied large compression stress.
In addition, be not particularly limited for the size (external diameter, internal diameter, wall thickness dimension) as the metal tube of processing object among the present invention.In addition, material about metal tube, although the pipe (such as steel pipe, stainless steel tube, special steel pipe etc.) that the present invention consists of the material take iron as main body typically is as processing object, also can be with the pipe take in addition metal material as main body or the pipe take other metal alloy as material as processing object.
Effect of the present invention is, according to the bender of metal tube of the present invention, can realize not making compression control complicated, just can effectively apply large compression stress to metal tube with little output and compact drive source.
Other purpose of the present invention, feature and advantage are by the explanation of the following embodiments of the present invention of narration will be clearer with reference to the accompanying drawings.In addition, among each figure, identical label represents identical or suitable part.
Description of drawings
Fig. 1 is the top view of bender that schematically represents the metal tube of the first embodiment of the present invention.
Fig. 2 is the top view that schematically represents to utilize the bender of above-mentioned the first embodiment state in processing.
Fig. 3 is the top view of bender that schematically represents the metal tube of the second embodiment of the present invention.
Fig. 4 is the top view that schematically represents to utilize the bender of above-mentioned the second embodiment state in processing.
Fig. 5 is the top view that schematically represents the bender of the first comparative example of the present invention.
Fig. 6 is the figure of action of the bender of above-mentioned the first comparative example of expression.
Fig. 7 schematically represents the top view of the bender of the second comparative example of the present invention.
Fig. 8 is the top view that schematically represents the bender of the 3rd comparative example of the present invention.
The specific embodiment
The first embodiment
As depicted in figs. 1 and 2, the bender of the metal tube of the first embodiment of the present invention has: heat in the form of a ring the heater coil 12 as the metal tube 11 of processing object, have the clamping section 15 of controlling metal tube 11 and centered by fulcrum 14, can be supported on rotationally near the clamp arm 13 of position heater coil 12 the place aheads, have the clamping section (rear portion clip) 17 at the rear portion of controlling metal tube 11 and the movable base 16 that can move at the length direction (left and right directions of Fig. 1) of metal tube 11, and with the propulsion cylinder (propulsion plant) 18 of this movable base 16 to clamp arm 13 (heater coil 12) propelling.
In addition, this processing unit (plant) is as having for the compression set of metal tube 11 being given compression stress: hydraulic motor 21, pass to the roller chain (connecting elements) 24 of clamp arm 13 as backhaul power F around the revolving force that hangs between two sprocket wheels 22,23 and hydraulic motor 21 is produced in the form of a ring, and be the chain guide 25,26 that supports roller chain 24 (following sometimes referred to as " chain ") circular-arcly.
As mentioned above, clamp arm 13 is along with the propelling of metal tube 11 is rotated centered by fulcrum 14, therefore the leading section of clamp arm 13 rotates according to circular-arc track centered by fulcrum 14, but the above-mentioned sprocket wheel 22 of support chain 24,23 are made of the first sprocket wheel 22 and the second sprocket wheel 23, this first sprocket wheel 22 is configured in the end side (clamp arm 13 be in not yet rotation and with near metal tube 11 position of the arm leading section of the state of quadrature (original state before processing shown in Figure 1 begins) roughly) of circular-arc convolution track of the leading section of this arm, and the second sprocket wheel 23 is configured near the other end side (the arm leading section of the state that clamp arm 13 complete (being about 110 ° in this example) has rotated position) of the circular-arc convolution track of this arm leading section.
In addition, the side (interior pendant moiety) in two sections chain parts that extend in parallel to each other between above-mentioned the first and second sprocket wheels 22,23 connects the leading section that (fixing) clamp arm 13.In addition, in Fig. 1 and Fig. 2, represent this stationary state with bullet (label 27).Therefore, as shown in Figure 2, when the propelling by metal tube 11 was rotated clamp arm 13, chain 24 and above-mentioned each guide plate 25,26 butts were also advanced between two sprocket wheels 22,23.
In addition, along with advancing of this chain 24, the 23 driven rotations of the second sprocket wheel.On the other hand, be connected with hydraulic motor 21 at the first sprocket wheel 22, thereby can will be applied on the first sprocket wheel 22 with respect to the reciprocal revolving force E of rotation of the first sprocket wheel 22 of the rotation C that is accompanied by clamp arm 13 (D that advances of chain) by this hydraulic motor 21.Therefore, by the driving of hydraulic motor 21, can apply backhaul power F to clamp arm 13 by interior pendant moiety.
In addition, above-mentioned interior pendant moiety is owing to being connected to the ratio clamping section 15 arm leading section in the outer part of observing from fulcrum 14 sides, thereby can take fulcrum 14 as fulcrum effectively (obtain with little backhaul power) metal tube 11 is applied compression stress large.In addition, by gear (not shown) and set this gear ratio larger is set between hydraulic motor 21 and the first sprocket wheel 22, thereby for example desired wall thickness reduction rate also can be corresponding with the occasion of the large compression stress of needs close to zero occasion at picture.
In addition, in the device of above-mentioned TOHKEMY 2009-12062 communique record, owing to having carried the compression cylinder at movable base, compression is mobile with movable base with cylinder, thereby to compression stress (backhaul power) when controlling, need to consider simultaneously the movement of movable base (compression cylinder) and clamp arm rotation the two.With respect to this, in present embodiment (the second embodiment described below is also identical), as long as consider the rotation of clamp arm, since can with advance to drive (movement of movable base) and carry out separately dividually the control of compression stress (backhaul power), thereby also have advantages of compression control is simplified.
The second embodiment
Below, the bender of the metal tube of the second embodiment of the present invention is described with reference to Fig. 3, put on identical label and the repetitive description thereof will be omitted for the structure identical with the device of above-mentioned the first embodiment, only centered by difference, narrate.
As shown in Figure 3, the device of the bender of the second embodiment of the present invention and above-mentioned the first embodiment is same, by applying backhaul power F and give compression stress to metal tube 11 by 21 pairs of clamp arms 13 of hydraulic motor, but carried the sprocket wheel 22 that hydraulic motor 21 and the compressible drive that has been connected hydraulic motor 21 are used at the leading section of clamp arm 13.
More particularly, the leading section of clamp arm 13 be equipped with hydraulic motor 21 and with a plurality of sprocket wheels 22,31,32 of roller chain 34 engagements.Roller chain 34 and above-mentioned the first embodiment are similarly by being supported on the chain guide 35 in the mode of describing circular arc along the convolution track of arm leading section, thereby be stretched between the end side and the other end side of convolution track of arm leading section, but from the form of a ring around hanging between two sprocket wheels and being accompanied by the rotation of clamp arm and above-mentioned first embodiment of advancing is different, one end is fixed on an end side of the convolution track of arm leading section, and the other end is fixed on the other end side of the convolution track of arm leading section.In addition, like this, in the present embodiment, be not to be one state in the form of a ring around extension owing to chain 34, as long as thereby chain guide 35 have one and have along the guide plate of the circular-arc flat shape of the convolution track of arm leading section.
In addition, the above-mentioned sprocket wheel that carries at the arm leading section comprises: the drive sprocket 22 that is connected with the driving shaft of hydraulic motor 21, and two driven sprockets 31,32 that are separately positioned on the front and back of drive sprocket 22 between this sprocket wheel in the mode that chain 34 crawls.Driven sprocket 31,32 and chain 34 engagement and freely (along with the rotation of clamp arm 13 advance and freely) rotation, but be configured in than the position of drive sprocket 22 by fulcrum 14, thus, by driven sprocket 31,32 chain 34 is near to the fulcrum layback, chain 34 and drive sprocket 22 are meshed reliably in the front and back of drive sprocket 22.
As shown in Figure 4, rotate along with the rotation of clamp arm 13 with the sprocket wheel 22,31,32 of chain 34 engagements, at this moment, just can drive the hydraulic motor 21 that is connected with drive sprocket 22, thereby apply and the reciprocal revolving force of the rotating photo of this sprocket wheel 22 (overcoming the revolving force of rotation of the sprocket wheel 22 of the rotation that is accompanied by clamp arm 13) E, thus, clamp arm 13 is applied backhaul power F, can give compression stress to metal tube 11.
Like this, processing unit (plant) according to the embodiment of the present invention utilizes 21 pairs of clamp arms 13 of hydraulic motor to apply backhaul power F, thereby can be in bending machining gives compression stress to metal tube 11 and the wall thickness that suppresses metal tube 11 reduces.In addition, the practitioner of this area is very clear, and the present invention is not limited to these embodiments, can carry out various changes in the scope of protection of the invention.
Claims (9)
1. the bender of a metal tube has:
Heat in the form of a ring the heater as the part of the metal tube of bending machining object;
The propulsion plant that above-mentioned metal tube is advanced to tube axial direction towards this heater;
Guiding device, this guiding device comprises the clamp arm that can control above-mentioned metal tube and rotate centered by fulcrum, utilize this clamp arm to control the place ahead part of the heating part of the metal tube that is heated by above-mentioned heater, and along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant this gripping point is rotated centered by above-mentioned fulcrum, thereby above-mentioned metal tube is applied bending moment; And
Compression set, this compression set is by applying backhaul power to above-mentioned metal tube effect compression stress take above-mentioned fulcrum as fulcrum to above-mentioned clamp arm, and the clamp arm that this backhaul power is used for rotating along with the propelling of the metal tube that is undertaken by above-mentioned propulsion plant retracts,
The bender of this metal tube is characterised in that,
Above-mentioned compression set comprises:
Be connected to above-mentioned clamp arm, observe than the gripping point of the above-mentioned metal tube connecting elements of position in the outer part from above-mentioned fulcrum side; And
By means of the motor of this connecting elements to the above-mentioned backhaul power of above-mentioned outer fix effect of above-mentioned clamp arm.
2. the bender of metal tube according to claim 1 is characterized in that,
Above-mentioned connecting elements is chain,
The bender of above-mentioned metal tube also has along the convolution track of above-mentioned clamp arm and is the chain guide that guides above-mentioned chain circular-arcly.
3. the bender of metal tube according to claim 2 is characterized in that,
Dispose the first sprocket wheel with above-mentioned chain engagement in an end side of the convolution track of the leading section of above-mentioned clamp arm,
Dispose the second sprocket wheel with above-mentioned chain engagement in the other end side of the convolution track of the leading section of above-mentioned clamp arm,
Above-mentioned chain is in the form of a ring around hanging between these first sprocket wheels and the second sprocket wheel,
Above-mentioned clamp arm is connected between above-mentioned the first sprocket wheel and the second sprocket wheel the side in two sections chain parts that extend in parallel to each other,
Connect said motor at above-mentioned the first sprocket wheel or above-mentioned the second sprocket wheel,
Thus, can utilize said motor and above-mentioned clamp arm is applied above-mentioned backhaul power by above-mentioned chain part.
4. the bender of metal tube according to claim 2 is characterized in that,
One end of above-mentioned chain is fixed on the end side of convolution track of the leading section of above-mentioned clamp arm, and
The other end of above-mentioned chain is fixed on the other end side of convolution track of the leading section of above-mentioned clamp arm,
Leading section at above-mentioned clamp arm has the sprocket wheel that meshes and rotate along with the rotation of above-mentioned clamp arm with this chain,
Leading section at above-mentioned clamp arm has said motor, thus can to this sprocket wheel apply overcome that above-mentioned sprocket wheel rotates along with the rotation of above-mentioned clamp arm revolving force,
Thus, can apply above-mentioned backhaul power to above-mentioned clamp arm.
5. the bender of metal tube according to claim 1 is characterized in that,
Said motor is hydraulic motor.
6. the bender of metal tube according to claim 2 is characterized in that,
Said motor is hydraulic motor.
7. the bender of metal tube according to claim 3 is characterized in that,
Said motor is hydraulic motor.
8. the bender of metal tube according to claim 4 is characterized in that,
Said motor is hydraulic motor.
9. the bender of any one described metal tube is characterized in that according to claim 1～8,
Above-mentioned fulcrum extends along vertical direction,
Above-mentioned clamp arm flatly rotates along with the propelling of above-mentioned metal tube and guides above-mentioned metal tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-142883 | 2011-06-28 | ||
| JP2011142883A JP5784387B2 (en) | 2011-06-28 | 2011-06-28 | Metal pipe bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102847764A true CN102847764A (en) | 2013-01-02 |
| CN102847764B CN102847764B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110261534.6A Active CN102847764B (en) | 2011-06-28 | 2011-08-30 | Bending processing device for metal tube |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5784387B2 (en) |
| KR (2) | KR101795665B1 (en) |
| CN (1) | CN102847764B (en) |
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| CN108526260B (en) * | 2018-03-30 | 2019-06-07 | 宁波海蔓汽车科技有限公司 | A kind of metal winding pipe production equipment |
| CN108526260A (en) * | 2018-03-30 | 2018-09-14 | 宁波海蔓汽车科技有限公司 | A kind of metal winding pipe production equipment |
| CN108856391A (en) * | 2018-07-18 | 2018-11-23 | 重庆祥越管道配件制造有限公司 | Pipeline bends shaping equipment |
| CN109622687B (en) * | 2018-12-29 | 2020-05-12 | 重庆鑫劲宏景机械有限公司 | Pipe fitting forming method for motorcycle frame |
| CN109622687A (en) * | 2018-12-29 | 2019-04-16 | 重庆鑫劲宏景机械有限公司 | Method for forming pipe fitting for frame of motorcycle |
| CN109807206A (en) * | 2019-02-28 | 2019-05-28 | 宁波嘉鹏机械设备制造有限公司 | A kind of bending machine |
| CN110976577A (en) * | 2019-12-19 | 2020-04-10 | 马书文 | Pipe bending device for machining |
| CN111496032A (en) * | 2020-05-22 | 2020-08-07 | 杭涛 | Pipe bending forming equipment and bending process |
| CN113290091A (en) * | 2021-05-19 | 2021-08-24 | 安徽戴家工艺有限公司 | Rattan chair steel pipe fossil fragments automatic processing former |
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| CN114160629A (en) * | 2021-10-26 | 2022-03-11 | 中铁十六局集团第五工程有限公司 | Bent pipe preparation equipment |
| CN114749556A (en) * | 2022-05-17 | 2022-07-15 | 杭州萧山江海实业有限公司 | Almag roll forming frame section bar forming device |
| CN114749556B (en) * | 2022-05-17 | 2024-01-30 | 杭州萧山江海实业有限公司 | Aluminum-magnesium-zinc roll forming frame profile forming device |
| CN117299891A (en) * | 2023-11-24 | 2023-12-29 | 河北鹏鑫管道装备集团有限公司 | Special-shaped bent pipe machining device and machining method thereof |
| CN117299891B (en) * | 2023-11-24 | 2024-02-06 | 河北鹏鑫管道装备集团有限公司 | Special-shaped bent pipe machining device and machining method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170105462A (en) | 2017-09-19 |
| JP5784387B2 (en) | 2015-09-24 |
| KR101795665B1 (en) | 2017-11-08 |
| CN102847764B (en) | 2015-03-25 |
| JP2013010109A (en) | 2013-01-17 |
| KR20130002235A (en) | 2013-01-07 |
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