CN102847764B - Bending processing device for metal tube - Google Patents
Bending processing device for metal tube Download PDFInfo
- Publication number
- CN102847764B CN102847764B CN201110261534.6A CN201110261534A CN102847764B CN 102847764 B CN102847764 B CN 102847764B CN 201110261534 A CN201110261534 A CN 201110261534A CN 102847764 B CN102847764 B CN 102847764B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- metal tube
- clamp arm
- chain
- fulcrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- 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, particularly relate to and prevent pipe thickness from reducing and carry out the technology of the bending machining of metal tube simultaneously.
Background technology
Now, metal tube, or to be widely used as the frame structure material etc. of the building such as roof of bridge, sports ground as the pipe for fluids such as transfer oil, gas and various liquid in the industrial plants such as complete set of equipments, factory and power plant.These metal tubes are owing to using the standardized pipe (straight tube or the shape tube such as elbow, bend pipe) manufacturing regulation shape in advance, on the other hand, due to according to construction object the pipe of linearity carried out the pipe after bending machining (hereinafter referred to as " bend pipe ") can with various curvature and pipe shape corresponding neatly, be thus also widely used.
On the other hand, when manufacturing bend pipe, with regard to only using carry out as raw-material straight tube simple bending with regard to, the outer circumferential side wall thickness of bent tube section is thinning, does not likely meet the intensity required by this pipe.So, there will be a known by applying compression stress, while carry out the technology (so-called bending compression) processing to prevent this pipe thickness from reducing to tube axial direction while bending.
Fig. 5 is the figure of the bender schematically representing this bending compression, this device shown in this figure has: the heater coil 12 heating a part for the metal tube 11 as processing object in the form of a ring, towards the propulsion plant (propulsion cylinder) 18 that metal tube advances to tube axial direction B by heater coil 12, hold metal tube 11 and the clamp arm 13 that can rotate centered by fulcrum 14.Utilize clamp arm (following, sometimes referred to as " arm ") 13 while hold the forward portion of the heating part of to be carried out the metal tube 11 heated by heater coil 12, while this gripping point is rotated centered by fulcrum 14 along with advancing of the metal tube 11 advanced by propulsion plant 18, thus bending moment is applied to metal tube 11.
In addition, meanwhile, by being applied to clamp arm 13 by the rightabout power of direction of propulsion B and reverberation matrix method G with metal tube 11 and applying compression stress to metal tube 11.Therefore, be provided with the drive unit (hydraulic cylinder 41 that compress) different from propulsion plant 18, utilize such as steel wire that hydraulic cylinder 41 is connected to the leading section of clamp arm 13.In addition, in Figure 5, label 16 represents can at the movable base of tube axial direction movement, and label 17 represents the rear portion clip being placed on rear portion on this movable base 16, holding metal tube 11.
In addition, as the technical scheme be associated with this bending compression, there is Japanese Unexamined Patent Publication 2009-12062 publication.
, in existing bending compression, as drive unit metal tube being applied to compression stress, usually use hydraulic cylinder in the same manner as the drive unit advanced.
But, the occasion of hydraulic cylinder is used at the drive unit as compression, even if metal tube bends in 90 ° by the hydraulic cylinder advanced, also the stroke of general curved half mass runoff is only needed, in contrast, compression hydraulic cylinder then needs to follow the stroke that the metal tube bending to arc-shaped is equivalent to so grow along the distance of the circumference of bent tube section.Especially, because angle of bend and the larger then the trip of bending radius longer, therefore forming the occasion of processing unit (plant), compression hydraulic cylinder can not use general (because of but cheapness) hydraulic cylinder, the hydraulic cylinder that specially-made Long travel must be used special is quite a few so far.Therefore, the manufacture that there is processing unit (plant) needs the long time (delivery date is long) and the problem that increases of manufacturing cost.
In addition, in the device shown in above-mentioned Fig. 5, as shown in Figure 6 along with the carrying out of bending machining, because the steel wire and clamp arm 13 angulation that connect the hydraulic cylinder 41 and clamp arm 13 compressed change, the output (the tensile force G produced by this cylinder) of the hydraulic cylinder 41 thus compressed is with actual non-constant to the relation of the compression stress that metal tube 11 applies.Therefore, in order to make the compression stress to metal tube 11 applies necessarily just need the output of the hydraulic cylinder 41 changing compression along with the carrying out of bending machining, the control of the hydraulic cylinder 41 of compression has to become complicated.
On the other hand, in order to avoid complex situations as above, also can consider that the position near the fulcrum 14 of clamp arm 13 applies reverberation matrix method.
Such as, as shown in Figure 7, as long as the pinion 42 rotated together with clamp arm 13 is fixed in the fulcrum portion of clamp arm 13, also apply, with the rightabout revolving force G of direction of rotation of clamp arm 13, just to produce compression stress to metal tube 11 by hydraulic cylinder 41 by means of the tooth bar 43 engaged with this pinion 42.In addition, as shown in Figure 8, also can the sprocket wheel 44 rotated together with clamp arm 13 be arranged in the fulcrum portion of clamp arm 13, apply the rightabout revolving force G with the direction of rotation of clamp arm 13 by means of chain 45 by hydraulic cylinder 41 in the same manner as the method for above-mentioned Fig. 7.
But, in the device shown in these Fig. 7 and Fig. 8, with the Measures compare that can apply above-mentioned Fig. 5 of reverberation matrix method to the front end of clamp arm, can see, this structure is disadvantageous for needing the situation of large compression stress, such as, in order to meet the requirement of strict wall thickness reduction rate close to zero, the hydraulic cylinder 41 existed as compression must use the difficulty of the hydraulic cylinder with very large output.
Summary of the invention
Therefore, the object of the invention is to not allow compression control complicated, can with little output and compact drive source applies this point of large compression stress effectively to metal tube.
Realize goal of the invention to solve the problem, the bender of metal tube of the present invention has: the heater heating a part for the metal tube as bending machining object in the form of a ring; Towards the propulsion plant that above-mentioned metal tube advances to tube axial direction by this heater; Guiding device, this guiding device comprises can hold above-mentioned metal tube and the clamp arm rotated centered by fulcrum, this clamp arm is utilized to hold by the forward portion of the heating part of the metal tube of above-mentioned heating devices heat, and along with above-mentioned propulsion plant, above-mentioned metal tube is advanced to tube axial direction and this gripping point is rotated centered by above-mentioned fulcrum, thus bending moment is applied to above-mentioned metal tube; Compression set, this compression set is by with above-mentioned fulcrum, for fulcrum, to above-mentioned clamp arm applying reverberation matrix method, to above-mentioned metal tube compressive press forces, this reverberation matrix method is used for be retracted by the clamp arm that above-mentioned metal tube rotates to tube axial direction propelling along with above-mentioned propulsion plant; Above-mentioned compression set comprises: that be connected to above-mentioned clamp arm, to observe the gripping point position in the outer part than above-mentioned metal tube from above-mentioned fulcrum side connecting elements; And by means of the motor of this connecting elements to the above-mentioned reverberation matrix method of above-mentioned outer fix effect of above-mentioned clamp arm.
In bender of the present invention, while the part utilizing above-mentioned heater heating metal pipe in the form of a ring, advance this metal tube, meanwhile, made by the guiding of guiding device the metal tube that have passed heater with bowing.
Specifically, when being " front " with the direction of propulsion of metal tube (in the description in this application, towards the direction of propulsion of metal tube using front as " front ", using rear as " afterwards "), held the forward portion of heating part by clamp arm.This clamp arm is arranged to rotate centered by fulcrum, and is advanced to tube axial direction by above-mentioned metal tube along with above-mentioned propulsion plant and rotate.In addition, above-mentioned grip portion rotates centered by this fulcrum along with the rotation of this clamp arm, and applies bending moment to the above-mentioned heating part of metal tube, thereby, it is possible to make metal tube plastic deformation and the mode that forms circular arc bends metal tube continuously.In addition, as long as the rear portion of metal tube is held by the rear portion clip be such as arranged on the movable base that can advance towards above-mentioned heater, and above-mentioned propulsion plant advances metal tube by means of this movable base to heater.
On the other hand, by applying above-mentioned bending moment and applying compression stress to tube axial direction, thus the wall thickness of pipe periphery thinning (reduction of wall thickness) is prevented.This compression stress by with above-mentioned fulcrum for above-mentioned metal tube will to advance and reverberation matrix method that the clamp arm that rotates retracts is applied on clamp arm to tube axial direction along with above-mentioned propulsion plant by fulcrum, in other words, by producing the rightabout power of rotation direction of clamp arm applying and clamp arm.
This compression set comprises the connecting elements be connected with clamp arm, and by this connecting elements to the motor of the above-mentioned reverberation matrix method of clamp arm effect.In the present invention, use motor by not using hydraulic cylinder as the drive unit applying compression stress like this, thus the route problem (needing the hydraulic cylinder of Long travel) of above-mentioned hydraulic cylinder can be eliminated.In addition, above-mentioned connecting elements be connected to above-mentioned clamp arm, observe than the gripping point position in the outer part of metal tube from fulcrum side.This is because, can be that compression stress (with little reverberation matrix method by large compression stress) is applied on metal tube metal tube by fulcrum effectively like this with fulcrum.
In addition, preferably, above-mentioned connecting elements is done chaining, the bender of the above-mentioned metal tube convolution track also had along clamp arm be arc-shaped guide the chain guide of this chain.
In addition, as above-mentioned " motor ", typically hydraulic motor is used.But motor of the present invention is not limited to hydraulic motor, 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), the first sprocket wheel engaged with above-mentioned chain is configured with in an end side of the convolution track of the leading section of clamp arm, the second sprocket wheel engaged with above-mentioned chain is configured with in the side, the other end 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 the first sprocket wheel and second sprocket wheels, above-mentioned clamp arm is connected to the side in the two sections of chain parts extended in parallel to each other between above-mentioned first sprocket wheel and the second sprocket wheel, above-mentioned first sprocket wheel or above-mentioned second sprocket wheel connect said motor, thus, can said motor be utilized and by above-mentioned chain part, above-mentioned reverberation matrix method be applied to above-mentioned clamp arm.
In addition, another scheme of the present invention is, one end of above-mentioned chain is fixed on an end side of the convolution track of the leading section of above-mentioned clamp arm, and the other end of above-mentioned chain is fixed on the side, the other end of the convolution track of the leading section of above-mentioned clamp arm, have in the leading section of above-mentioned clamp arm and engage and the sprocket wheel rotated along with the convolution of above-mentioned clamp arm with this chain, in the leading section of above-mentioned clamp arm, there is said motor, thus can apply to overcome to this sprocket wheel the revolving force that above-mentioned sprocket wheel rotates along with the rotation of above-mentioned clamp arm, thus, above-mentioned reverberation matrix method can be applied to above-mentioned clamp arm.
Further, preferred structure of the present invention is, 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 of said motor and sprocket wheel, as long as regulate (increasing) this gear ratio just can apply large compression stress with the motor of little power output to metal tube.
In addition, the size (external diameter, internal diameter, wall thickness dimension) as the metal tube of processing object in the present invention is not particularly limited.In addition, about the material of metal tube, although the pipe (such as steel pipe, stainless steel tube, special steel pipe etc.) that the material based on iron forms by the present invention is typically as processing object, also can by based on the pipe of metal material in addition or using other metal alloy pipe that is material as processing object.
Effect of the present invention is, according to the bender of metal tube of the present invention, can realize not allowing compression control complicated, just can with little output and compact drive source applies large compression stress effectively to metal tube.
Other object of the present invention, feature and advantage will clearly by the explanation of the following embodiments of the present invention described with reference to the accompanying drawings.In addition, in each figure, identical label represents same or equivalent part.
Accompanying drawing explanation
Fig. 1 is the top view of the bender of the metal tube schematically representing the first embodiment of the present invention.
Fig. 2 is the top view schematically representing the state in utilizing the bender of above-mentioned first embodiment to process.
Fig. 3 is the top view of the bender of the metal tube schematically representing the second embodiment of the present invention.
Fig. 4 is the top view schematically representing the state in utilizing the bender of above-mentioned second embodiment to process.
Fig. 5 is the top view of the bender schematically representing the first comparative example of the present invention.
Fig. 6 is the figure of the action of the bender representing above-mentioned first comparative example.
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 of the bender schematically representing the 3rd comparative example of the present invention.
Detailed description of the invention
First embodiment
As depicted in figs. 1 and 2, the bender of the metal tube of the first embodiment of the present invention has: the heater coil 12 heating the metal tube 11 as processing object in the form of a ring, there is the clamping section 15 clamp arm 13 that can be supported on heater coil 12 front adjacent position centered by fulcrum 14 rotationally that hold metal tube 11, the clamping section (rear portion clip) 17 with the rear portion holding metal tube 11 also can at the movable base 16 of the length direction of metal tube 11 (left and right directions of Fig. 1) movement, and by propulsion cylinder (propulsion plant) 18 that this movable base 16 advances to clamp arm 13 (heater coil 12).
Movable base 16 can by such as forming to the chassis with wheel that clamp arm 13 is advanced along with the propelling of metal tube 11.In addition, in this case, although the propulsion cylinder 18 giving propulsive force to metal tube 11 can make be arranged on this device main body frame (not shown) on to advance movable base 16, but also can be mounted on movable base 16, in this case, this propulsion cylinder 18 coordinates with movable base 16 and aforementioned body framework and movable base 16 is advanced, thus move movable base 16 to clamp arm 13 side, thus, the metal tube 11 held by rear portion clip 17 is forwards advanced towards heater coil 12.In addition, represent the direct of travel of movable base 16 in the drawings with arrow A, and represent the direction of propulsion of the metal tube 11 accompanied with it with arrow B.
In addition, this processing unit (plant) has as the compression set for giving compression stress to metal tube 11: hydraulic motor 21, in the form of a ring around the roller chain (connecting elements) 24 hanging over the revolving force that produces between two sprocket wheels and using hydraulic motor 21 and to pass to as reverberation matrix method F clamp arm 13, and ground supports the chain guide 25,26 of roller chain 24 (below sometimes referred to as " chain ") in arc-shaped.
As mentioned above, clamp arm 13 rotates along with the propelling of metal tube 11 centered by fulcrum 14, therefore the leading section of clamp arm 13 rotates according to the track of arc-shaped centered by fulcrum 14, but the above-mentioned sprocket wheel of back-up roller subchain 24 is made up of the first sprocket wheel 22 and the second sprocket wheel 23, this first sprocket wheel 22 is configured in an end side (clamp arm 13 is in and not yet rotates and the neighbouring position of the arm leading section of the state roughly orthogonal with metal tube 11 (processing shown in Fig. 1 start before original state)) of the convolution track of the arc-shaped of the leading section of this arm, second sprocket wheel 23 is configured in the side, the other end (the neighbouring position of the arm leading section of the state that clamp arm 13 complete (being about 110 ° in this example embodiment) have rotated) of the convolution track of the arc-shaped of this arm leading section.
Chain guide 25, 26 are made up of two pieces of guide plates, it is the flat shape that central angle is the circular arc of such as about 110 ° accordingly that these two pieces of guide plates have with the slewing area of clamp arm 13, these two pieces of guide plates are formed as overlooking for arc-shaped in the mode of the convolution track along said arm leading section and extend abreast, the guide plate (being called " inner side guide plate ") of inner side can support pendant moiety in the roller chain 24 hung between the first sprocket wheel 22 and the second sprocket wheel 23 in the form of a ring in arc-shaped with advancing, in addition, the guide plate (being called " outside guide plate ") being configured in outside is in arc-shaped and can support the outside chain part of this roller chain 24 with advancing.In addition, these guide plates are positioned at than this clamp arm 13 on the lower in the mode of the rotation not interfering clamp arm 13, and support (setting) on the ground.
In addition, the side (interior pendant moiety) in the two sections of chain parts extended in parallel to each other between above-mentioned first sprocket wheel 22 and the second sprocket wheel 23 connects the leading section that (fixing) clamp arm 13.In addition, in Fig. 1 and Fig. 2, this stationary state is represented with bullet (label 27).Therefore, as shown in Figure 2, when the propelling by metal tube 11 makes clamp arm 13 rotate, roller chain 24 abuts with above-mentioned each guide plate and advances between two sprocket wheels.
In addition, along with advancing of this roller chain 24, the driven rotation of the second sprocket wheel 23.On the other hand, first sprocket wheel 22 is connected with hydraulic motor 21, thus can be applied on the first sprocket wheel 22 by the reciprocal revolving force E of rotation of this hydraulic motor 21 by the first sprocket wheel 22 relative to the rotation C (D that advances of roller chain) along with clamp arm 13.Therefore, by the driving of hydraulic motor 21, reverberation matrix method F can be applied by interior pendant moiety to clamp arm 13.
In addition, above-mentioned interior pendant moiety, owing to being connected to the arm leading section in the outer part, ratio clamping section 15 observed from fulcrum 14 side, can be thus that fulcrum (obtains with little reverberation matrix method) to apply compression stress to metal tube 11 effectively large with fulcrum 14.In addition, by arranging gear (not shown) and this gear ratio is set larger between hydraulic motor 21 and the first sprocket wheel 22, thus the such as required wall thickness reduction rate of picture close to zero occasion also can be corresponding with needing the occasion of large compression stress.
In addition, in the device that above-mentioned Japanese Unexamined Patent Publication 2009-12062 publication is recorded, owing to having carried compression cylinder on movable base, compression cylinder moves together with movable base, thus, when controlling compression stress (reverberation matrix method), need to consider the movement of movable base (compression cylinder) and both rotations of clamp arm simultaneously.Relative to this, in present embodiment (the second embodiment described below is also identical), as long as consider the rotation of clamp arm, owing to (movement of movable base) being driven to carry out separately the control of compression stress (reverberation matrix method) dividually with propelling, thus also there is the advantage that compression control can be made to simplify.
Second embodiment
, with reference to the bender that Fig. 3 illustrates the metal tube of the second embodiment of the present invention, identical label is put on for the structure identical with the device of above-mentioned first embodiment and the repetitive description thereof will be omitted below, only carry out describing centered by difference.
As shown in Figure 3, the bender of the second embodiment of the present invention is same with the device of above-mentioned first embodiment, give compression stress by applying reverberation matrix method F by hydraulic motor 21 pairs of clamp arms 13 to metal tube 11, but carried hydraulic motor 21 in the leading section of clamp arm 13 and be connected to the drive sprocket 22 of compressible drive of hydraulic motor 21.
More particularly, hydraulic motor 21 is installed and multiple sprocket wheels of engaging with roller chain 34 in the leading section of clamp arm 13.Roller chain 34 in the same manner as above-mentioned first embodiment by being supported on chain guide 35 in the mode describing circular arc along the convolution track of arm leading section, thus between the end side being stretched in the convolution track of arm leading section and side, the other end, but from the form of a ring around to hang between two sprocket wheels and above-mentioned first embodiment of advancing along with the rotation of clamp arm 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 side, the other end of the convolution track of arm leading section.In addition, like this, in the present embodiment, not be the state of in the form of a ring around extension due to roller chain 34, as long as thus chain guide 35 has the guide plate that has the flat shape of the arc-shaped of the convolution track along arm leading section.
In addition, the above-mentioned sprocket wheel being mounted in arm leading section comprises: the drive sprocket 22 be connected with the driving shaft of hydraulic motor 21, and is separately positioned on two driven sprockets 31,32 of the front and back of drive sprocket 22 in the mode that roller chain 34 carries out crawling between this sprocket wheel.Driven sprocket 31,32 engages with roller chain 34 and freely (rotation along with clamp arm 13 advance and freely) rotates, but be configured in than the position of drive sprocket 22 by fulcrum 14, thus, by driven sprocket 31,32, roller chain 34 is near to fulcrum layback in the front and back of drive sprocket 22, roller chain 34 can be made reliably to engage with drive sprocket 22.
As shown in Figure 4, the drive sprocket 22 engaged with roller chain 34, driven sprocket 31,32 rotate along with the rotation of clamp arm 13, now, just the hydraulic motor 21 be connected with drive sprocket 22 can be driven, thus apply the rightabout revolving force of rotation (overcoming the revolving force of the rotation of the drive sprocket 22 along with the rotation of the clamp arm 13) E with this drive sprocket 22, thus, reverberation matrix method F is applied with to clamp arm 13, compression stress can be given to metal tube 11.
Like this, processing unit (plant) according to the embodiment of the present invention, utilizes hydraulic motor 21 pairs of clamp arms 13 to be applied with reverberation matrix method F, thus can in bending machining, give compression stress to metal tube 11 and suppress the wall thickness of metal tube 11 to reduce.In addition, the practitioner of this area is very clear, and the present invention is not limited to these embodiments, can carry out various change in the scope of protection of the invention.
Claims (5)
1. a bender for metal tube, has:
Heat the heater of a part for the metal tube as bending machining object in the form of a ring;
Towards the propulsion plant that above-mentioned metal tube advances to tube axial direction by this heater;
Guiding device, this guiding device comprises can hold above-mentioned metal tube and the clamp arm rotated centered by fulcrum, this clamp arm is utilized to hold by the forward portion of the heating part of the metal tube of above-mentioned heating devices heat, and along with above-mentioned propulsion plant, above-mentioned metal tube is advanced to tube axial direction and this gripping point is rotated centered by above-mentioned fulcrum, thus bending moment is applied to above-mentioned metal tube; And
Compression set, this compression set by with above-mentioned fulcrum for fulcrum applies reverberation matrix method to above-mentioned clamp arm and to above-mentioned metal tube compressive press forces, the clamp arm that this reverberation matrix method is used for rotating being advanced to tube axial direction by above-mentioned metal tube along with above-mentioned propulsion plant retracts
The feature of the bender of this metal tube is,
Above-mentioned compression set comprises:
That be connected to above-mentioned clamp arm, to observe the gripping point position in the outer part than above-mentioned metal tube from above-mentioned fulcrum side connecting elements; And
By means of the motor of this connecting elements to the above-mentioned reverberation matrix method of above-mentioned outer fix effect of above-mentioned clamp arm,
Above-mentioned connecting elements is chain,
The bender of the above-mentioned metal tube convolution track also had along above-mentioned clamp arm be arc-shaped guide the chain guide of above-mentioned chain,
The first sprocket wheel engaged with above-mentioned chain is configured with in an end side of the convolution track of the leading section of above-mentioned clamp arm,
The second sprocket wheel engaged with above-mentioned chain is configured with in the side, the other end of the convolution track of the leading section of above-mentioned clamp arm,
Above-mentioned chain in the form of a ring around hanging between these the first sprocket wheel and second sprocket wheels,
Above-mentioned clamp arm is connected to the side in the two sections of chain parts extended in parallel to each other between above-mentioned first sprocket wheel and the second sprocket wheel,
Above-mentioned first sprocket wheel or above-mentioned second sprocket wheel connect said motor,
Thus, can said motor be utilized and by above-mentioned chain part, above-mentioned reverberation matrix method be applied to above-mentioned clamp arm.
2. the bender of metal tube according to claim 1, is characterized in that,
Said motor is hydraulic motor.
3. a bender for metal tube, has:
Heat the heater of a part for the metal tube as bending machining object in the form of a ring;
Towards the propulsion plant that above-mentioned metal tube advances to tube axial direction by this heater;
Guiding device, this guiding device comprises can hold above-mentioned metal tube and the clamp arm rotated centered by fulcrum, this clamp arm is utilized to hold by the forward portion of the heating part of the metal tube of above-mentioned heating devices heat, and along with above-mentioned propulsion plant, above-mentioned metal tube is advanced to tube axial direction and this gripping point is rotated centered by above-mentioned fulcrum, thus bending moment is applied to above-mentioned metal tube; And
Compression set, this compression set by with above-mentioned fulcrum for fulcrum applies reverberation matrix method to above-mentioned clamp arm and to above-mentioned metal tube compressive press forces, the clamp arm that this reverberation matrix method is used for rotating being advanced to tube axial direction by above-mentioned metal tube along with above-mentioned propulsion plant retracts
The feature of the bender of this metal tube is,
Above-mentioned compression set comprises:
That be connected to above-mentioned clamp arm, to observe the gripping point position in the outer part than above-mentioned metal tube from above-mentioned fulcrum side connecting elements; And
By means of the motor of this connecting elements to the above-mentioned reverberation matrix method of above-mentioned outer fix effect of above-mentioned clamp arm,
Above-mentioned connecting elements is chain,
The bender of the above-mentioned metal tube convolution track also had along above-mentioned clamp arm be arc-shaped guide the chain guide of above-mentioned chain,
One end of above-mentioned chain is fixed on an end side of the convolution track of the leading section of above-mentioned clamp arm, and,
The other end of above-mentioned chain is fixed on the side, the other end of the convolution track of the leading section of above-mentioned clamp arm,
Have in the leading section of above-mentioned clamp arm and engage and the sprocket wheel rotated along with the rotation of above-mentioned clamp arm with this chain,
In the leading section of above-mentioned clamp arm, there is said motor, thus can apply to overcome to this sprocket wheel the revolving force that above-mentioned sprocket wheel rotates along with the rotation of above-mentioned clamp arm,
Thus, above-mentioned reverberation matrix method can be applied to above-mentioned clamp arm.
4. the bender of metal tube according to claim 3, is characterized in that,
Said motor is hydraulic motor.
5., according to the bender of the metal tube of Claims 1 to 4 described in any one, it is characterized in that,
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 |
|---|---|---|---|
| JP2011142883A JP5784387B2 (en) | 2011-06-28 | 2011-06-28 | Metal pipe bending machine |
| JP2011-142883 | 2011-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102847764A CN102847764A (en) | 2013-01-02 |
| CN102847764B true CN102847764B (en) | 2015-03-25 |
Family
ID=47394969
Family Applications (1)
| 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) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6389697B2 (en) * | 2014-08-21 | 2018-09-12 | 第一高周波工業株式会社 | Bending metal pipe manufacturing method, metal pipe bending apparatus and coil |
| CN106077188A (en) * | 2016-07-05 | 2016-11-09 | 太原锅炉集团有限公司 | A kind of membrane wall pipe allows pipe stretch bending method |
| CN107597916B (en) * | 2017-09-06 | 2019-12-03 | 渤海重工管道有限公司 | The low thinned bend pipe processing method of small-bend radius wall thickness and medium-frequency pipe bender |
| CN107626853B (en) * | 2017-09-19 | 2019-03-08 | 营口金辰机械股份有限公司 | Solar battery component junction box terminal bending device and the bending system for using the bending device |
| 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 |
| 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 |
| CN109807206B (en) * | 2019-02-28 | 2020-07-03 | 宁波嘉鹏机械设备制造有限公司 | Pipe bending machine |
| CN110976577B (en) * | 2019-12-19 | 2021-08-24 | 济南兰鑫汽车零部件有限公司 | Pipe bending device for machining |
| CN111496032A (en) * | 2020-05-22 | 2020-08-07 | 杭涛 | Pipe bending forming equipment and bending process |
| CN111842577B (en) * | 2020-07-28 | 2024-07-05 | 江苏耀坤液压股份有限公司 | Clamping assembly in pipeline of hydraulic oil pipe bending machine |
| CN112775229B (en) * | 2020-11-25 | 2022-12-20 | 江苏众信绿色管业科技有限公司 | Metal pipe bending machine |
| CN113290091B (en) * | 2021-05-19 | 2022-11-22 | 安徽戴家工艺有限公司 | Rattan chair steel pipe fossil fragments automatic processing former |
| CN113894546A (en) * | 2021-09-30 | 2022-01-07 | 大连富地重工机械制造有限公司 | Clamping plate type forming machine |
| 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 |
| CN114682663B (en) * | 2022-04-06 | 2023-08-25 | 江苏耀坤液压股份有限公司 | Bending assembly with curvature of bending part cavity of hydraulic oil pipe close to theoretical circle |
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1474848A (en) * | 1975-05-30 | 1977-05-25 | Tsnii Tekhnol Mashinostr | Pipe bending machines |
| CN2348948Y (en) * | 1998-07-07 | 1999-11-17 | 史春生 | Reciprocative rotation type bender for B type pipe |
| CN1868629A (en) * | 2005-05-26 | 2006-11-29 | 杰富意钢铁株式会社 | Tube bend processing device and tube bend processing method |
| CN1872441A (en) * | 2005-05-30 | 2006-12-06 | 第一高周波工业株式会社 | Heat bending processing method and device of metal tube |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149861A (en) * | 1975-06-11 | 1976-12-23 | Tsnii Tefunorojii Mashinosutor | Machine for bending pipes |
| JPS54128970A (en) * | 1978-03-31 | 1979-10-05 | Daiichi Koshuha Kogyo Kk | Method and apparatus for bending metal strip materials |
| JPS548154A (en) * | 1977-06-22 | 1979-01-22 | Daiichi Koshuha Kogyo Kk | Method and apparatus for compression bending of metal band material |
| JPS58927B2 (en) * | 1978-02-24 | 1983-01-08 | 第一高周波工業株式会社 | Bending method for austenitic stainless steel pipe |
| JPS61143712U (en) * | 1985-02-22 | 1986-09-05 | ||
| JP2000153311A (en) * | 1998-11-19 | 2000-06-06 | Dai Ichi High Frequency Co Ltd | Method for compressively bending metal bar and device therefor |
| JP2005144514A (en) * | 2003-11-18 | 2005-06-09 | Takashi Sango | Apparatus for bending shape steel |
| JP2009012062A (en) * | 2007-07-06 | 2009-01-22 | Dai Ichi High Frequency Co Ltd | Bending device of metallic tube and method of manufacturing metallic tube with bent part |
| JP4726884B2 (en) * | 2007-11-29 | 2011-07-20 | 徹 佐藤 | Steel pipe bending apparatus and steel pipe bending method |
-
2011
- 2011-06-28 JP JP2011142883A patent/JP5784387B2/en active Active
- 2011-08-29 KR KR1020110086311A patent/KR101795665B1/en active IP Right Grant
- 2011-08-30 CN CN201110261534.6A patent/CN102847764B/en active Active
-
2017
- 2017-09-06 KR KR1020170114074A patent/KR20170105462A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1474848A (en) * | 1975-05-30 | 1977-05-25 | Tsnii Tekhnol Mashinostr | Pipe bending machines |
| CN2348948Y (en) * | 1998-07-07 | 1999-11-17 | 史春生 | Reciprocative rotation type bender for B type pipe |
| CN1868629A (en) * | 2005-05-26 | 2006-11-29 | 杰富意钢铁株式会社 | Tube bend processing device and tube bend processing method |
| CN1872441A (en) * | 2005-05-30 | 2006-12-06 | 第一高周波工业株式会社 | Heat bending processing method and device of metal tube |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130002235A (en) | 2013-01-07 |
| CN102847764A (en) | 2013-01-02 |
| KR101795665B1 (en) | 2017-11-08 |
| KR20170105462A (en) | 2017-09-19 |
| JP5784387B2 (en) | 2015-09-24 |
| JP2013010109A (en) | 2013-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102847764B (en) | Bending processing device for metal tube | |
| CN101687241B (en) | Metallic pipe bending apparatus, and method for manufacturing a metallic pipe having a bent portion | |
| CN105880317A (en) | Full-automatic steel pipe straightener | |
| CN203459483U (en) | Tube bending machine | |
| JP2009012062A5 (en) | ||
| CN205732379U (en) | Full-automatic steel pipe straightener | |
| CN205851613U (en) | A kind of can the straight plate of bending and the device of steel pipe | |
| CN203635699U (en) | Spatial pipe bending machine for fire heating of steel pipes | |
| CN205763129U (en) | The bending and molding device of full-automatic body bending and molding equipment | |
| CN104841738A (en) | Pipe bending machine | |
| CN104259341B (en) | A kind of directed straightening severing for steel bar meter bends multiple purpose aeroplane | |
| CN104384269A (en) | Simple pipe bending machine | |
| CN204135226U (en) | A kind of palm for steel bar meter closes directed straightening severing and bends multiple purpose aeroplane | |
| CN207624541U (en) | A kind of twisted sector of inductance coil winding machine | |
| CN111054795A (en) | High-precision portable manual pipe bender | |
| CN205184522U (en) | A fixture for bent pipe circumferential weld burnishing machine | |
| CN208131737U (en) | A kind of Full-automatic tube bending machine | |
| TWI309182B (en) | Pipe turning device for a pipe bending machine (2) | |
| CN109986387A (en) | A kind of clamping device | |
| US20050210946A1 (en) | Bending machine and tube support and drive device thereof | |
| CN207386226U (en) | A kind of seamless steel pipe rotating mechanism | |
| CN210676498U (en) | Bending device is used in steel pipe production | |
| CN208772309U (en) | A kind of steel lining stainless steel internal thread tube piece combined-machining equipment | |
| CN211888534U (en) | Exhaust pipe bending machine | |
| CN204545234U (en) | For the incorgruous material toggling structure of stirrup bender |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |