CN106975706A - A kind of electric hydaulic cold bending machine - Google Patents
A kind of electric hydaulic cold bending machine Download PDFInfo
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- CN106975706A CN106975706A CN201710114701.1A CN201710114701A CN106975706A CN 106975706 A CN106975706 A CN 106975706A CN 201710114701 A CN201710114701 A CN 201710114701A CN 106975706 A CN106975706 A CN 106975706A
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- pipe
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- wheel
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of electric hydaulic cold bending machine, belong to steel pipe manufacture field.The electric hydaulic cold bending machine includes underframe, the pipe pressing device being arranged on underframe and two groups of rolling pipe devices, and two groups of rolling pipe devices are symmetrically positioned in the both sides below pipe pressing device.Underframe two ends are symmetrically arranged with two groups of trustship devices, and every group of trustship device is located at the outside of one group of rolling pipe device respectively.Trustship device includes：Trustship bearing, is arranged on the top surface of underframe, and two trustship bearings are located at the outside of two rolling pipe supports respectively, and with rolling pipe support in same perpendicular；Trustship arm, one end is rotatably connected with trustship bearing；Trustship axle, is rotatably arranged in the other end of trustship arm；Trustship wheel, is sleeved on the two ends of trustship axle；Trustship electrohydraulic cylinder, connection end is rotatably arranged on the top surface of underframe, and drive end is connected with trustship arm.The electric hydaulic cold bending machine can make steel pipe held stationary to be bending during bending and to bend effect good, easy to use.
Description
Technical field
The present invention relates to steel pipe manufacture field, more particularly to a kind of electric hydaulic cold bending machine.
Background technology
Pipeline is generally arranged between different implements, for conveying gas, liquid or fluid with solid particle
Deng material.Because the putting position of equipment is different, it is necessary to be changed according to the environment of operation field to the trend of pipeline, that is, exist
It is attached between straight line steel pipe (i.e. rectilinear duct) using bended pipe, to meet the requirement of material landline.Due to not
With in operating environment, crooked radian, bending radius of bended pipe etc. are differed, if according to actual needs, please be special
Manufacturer makes, not only expensive, and the production cycle is long, it is impossible to meet the use demand of operation field in time.Therefore,
It can be very necessary by the angle pipe equipment of straight line steel tube bending into bended pipe to provide a kind of.
Prior art provides a kind of vertical pipe bender, and the vertical pipe bender includes being provided with pressure pipe dress on underframe, underframe
Put and be symmetrically positioned in the both sides below pipe pressing device with two groups of rolling pipe devices, two groups of rolling pipe devices.Pipe pressing device includes：Framework, if
Put on underframe；Pressure pipe electrohydraulic cylinder, is arranged on frame roof；Travelling carriage, is connected with the drive end of pressure pipe electrohydraulic cylinder,
To be moved up and down along framework；Pressure pipe axle, is rotatably arranged in framework；Pressure pipe wheel, is fixedly set on pressure pipe axle, pressure pipe wheel
Wheel face on be provided with groove for accommodating steel pipe.Rolling pipe device includes：Pipe support is rolled, is arranged on underframe；Roller shaft, can
It is rotatably arranged on rolling pipe support；Pipe wheel is rolled, is fixedly set on roller shaft, is also equipped with being used to hold on the wheel face for rolling pipe wheel
Receive the groove of steel pipe.In use, steel pipe is passed through into framework, and ride on the rolling pipe wheel of two groups of rolling pipe devices, it is electronic by pressure pipe
Driven by Hydraulic Cylinder pressure pipe axle is moved downward along the incline of framework, pressure pipe wheel is applied pressure to the pushing point of steel pipe to be bending, will
Straight line steel pipe is pressed into bended pipe.Adjust position of the straight line steel pipe relative to pressure pipe wheel, you can complete the different positions of straight line steel pipe
That puts bends.
Inventor has found that prior art at least has following technical problem：
The vertical pipe bender provided using prior art, when length of steel pipe to be bending is larger, steel pipe to be bending is only pushed
Point is supported by the rolling pipe support near it, and the two ends of steel pipe to be bending are not supported then, in vacant state, are caused to be bending
Steel pipe is difficult to keep stable on rolling pipe support, and influence steel pipe to be bending bends effect.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is to protect steel pipe during bending there is provided one kind
Keep steady fixed and bend the good electric hydaulic cold bending machine of effect, concrete technical scheme is as follows：
The embodiments of the invention provide a kind of electric hydaulic cold bending machine, including underframe, the pressure that is arranged on the underframe
Pipe device and two groups of rolling pipe devices, roll the both sides that pipe device is symmetrically positioned in below the pipe pressing device described in two groups.
The electric hydaulic cold bending machine also includes：It is symmetricly set on two groups of trustship devices at the underframe two ends, every group
The trustship device is located at the outside that pipe device is rolled described in one group respectively.The trustship device includes：Trustship bearing, is arranged on institute
State on the top surface of underframe.Trustship arm, one end is rotatably connected with the trustship bearing；Trustship axle, is rotatably arranged in described
The other end of trustship arm.Trustship wheel, is fixedly set on the trustship axle, and is provided with the wheel face of the trustship wheel for holding
Receive the groove of steel pipe.Trustship electrohydraulic cylinder, connection end is rotatably arranged on the top surface of the underframe, drive end with it is described
Trustship arm is connected.
Specifically, preferably, the pipe pressing device includes：On framework, the top surface for being arranged on the underframe.Pressure pipe is electronic
Hydraulic cylinder, is arranged on the top of the framework.Travelling carriage, in the framework, and a horizontal mounting arm of the travelling carriage
The outside of the framework is stretched out, the top of the travelling carriage is connected with the drive end of the pressure pipe electrohydraulic cylinder, to pass through institute
Stating pressure pipe electrohydraulic cylinder drives the travelling carriage to be moved up and down along the framework.Pressure pipe axle, outside the framework, and with
The end face of the horizontal mounting arm is rotatably connected.Pressure pipe wheel, is fixedly set on the pressure pipe axle, on the wheel face of the pressure pipe wheel
It is provided with the groove for accommodating the steel pipe.
Specifically, preferably, the electric hydaulic cold bending machine also includes the first pivoting support, the first revolution branch
The inner ring held is fixedly set in the end of the horizontal mounting arm, and one end of the pressure pipe axle is provided with the first connecting groove, described
The outer ring of first floating bearing is inlaid in first connecting groove.
Specifically, preferably, the rolling pipe device includes：Roll on pipe support, the top surface for being arranged on the underframe, and can
Slided along the length direction of the underframe.Roller shaft, is rotatably arranged on the rolling pipe support.Roll pipe wheel, fixed suit
On the roller shaft, the groove for accommodating the steel pipe is also equipped with the wheel face of the rolling pipe wheel.
Specifically, preferably, being provided with linear ramp on the underframe, the bottom of the rolling pipe support is along its length
Strip groove is provided with, connection through hole is provided with the linear ramp, the relative side wall of the strip groove for accommodating.Institute
State and be provided with strip through-hole along its length on the side wall of linear ramp, by the second fixed pin shaft also cross the connection through hole
With the strip through-hole, the rolling pipe support is set to be moved in the range of the strip through-hole along the length direction of the linear ramp
It is dynamic.
Specifically, preferably, the electric hydaulic cold bending machine also includes the second pivoting support, the second revolution branch
The inner ring held is sleeved on the end of the roller shaft；The second connecting groove is provided with the side wall of the rolling pipe support, described the
The outer ring of two-revolution supporting is inlaid in second connecting groove.
Specifically, preferably, the electric hydaulic cold bending machine also includes hydraulic motor, the driving of the hydraulic motor
Axle is connected with the roller shaft.
Specifically, preferably, the electric hydaulic cold bending machine also includes rolling pipe electrohydraulic cylinder, the top of the underframe
Hold-down support is provided with face, the connection end of the rolling pipe electrohydraulic cylinder is connected with the hold-down support, drive end with it is described
Roll pipe support connection.
Specifically, preferably, the two ends of the trustship axle are respectively arranged with rolling bearing, each rolling bearing is embedding
In bearing block, two bearing blocks are separately positioned on the both sides of the trustship arm top surface.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
Electric hydaulic cold bending machine provided in an embodiment of the present invention, branch is provided by two groups of rolling pipe devices for steel pipe to be bending
Support, applies pressure to the predetermined pushing point of steel pipe to be bending by pipe pressing device, realizes bending for steel pipe to be bending.By the bottom of at
Trustship device is set up on frame, before steel tube bending to be bending, provides and more fully supports for two end.And due to be curved
Steel pipe processed is provided with multiple predetermined pushing points on along its length, when first predetermined point that pushes of steel pipe to be bending is filled by pressure pipe
Put after press-bending, its two ends is necessarily tilted therewith, cause the two ends of steel pipe to be bending to depart from trustship device and lose support.Now lead to
Cross trustship electrohydraulic cylinder driving trustship arm to move upwards, the two ends for making trustship wheel and trustship axle tilt with steel pipe to be bending again
Contact and provide support for it, be that steel pipe to be bending provides safeguard in next predetermined bending for pushing point.It can be seen that, the present invention is implemented
The electric hydaulic cold bending machine that example is provided, steel pipe held stationary to be bending can be made during bending and bends that effect is good, make
With convenient, suitable for large-scale promotion application.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the front view of electric hydaulic cold bending machine provided in an embodiment of the present invention；
Fig. 2 is the left view of electric hydaulic cold bending machine provided in an embodiment of the present invention；
Fig. 3 is the top view of electric hydaulic cold bending machine provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of trustship arm movement locus provided in an embodiment of the present invention.
Reference is represented respectively：
1 underframe,
101 linear ramps,
1011 strip through-holes,
2 pipe pressing devices,
201 frameworks,
202 pressure pipe electrohydraulic cylinders,
203 travelling carriages,
204 pressure pipe axles,
205 pressure pipe wheels,
206 Convenient tables,
207 connection bearing pins,
208 first connecting keys,
209 first end caps,
3 rolling pipe devices,
301 rolling pipe supports,
3011 strip grooves,
302 roller shafts,
303 rolling pipe wheels,
304 second fixed pin shafts,
305 hydraulic motors,
306 rolling pipe electrohydraulic cylinders,
307 hold-down supports,
308 fastening bolts,
309 split pins,
3010 second connecting keys,
3012 second end caps,
4 trustship devices,
401 trustship bearings,
402 trustship arms,
403 trustship axles,
404 trustship wheels,
405 trustship electrohydraulic cylinders,
406 bearing blocks,
407 hydraulic cylinders bearings,
5 steel pipes.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention will be made into one below
It is described in detail on step ground.
The embodiments of the invention provide a kind of electric hydaulic cold bending machine, as shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, the electricity
Hydrodynamic pressure cold bending machine includes underframe 1, the pipe pressing device 2 being arranged on underframe 1 and two groups of rolling pipe devices 3, two groups of rolling pipe devices 3
It is symmetrically positioned in the both sides of the lower section of pipe pressing device 2.The electric hydaulic cold bending machine also includes：It is symmetricly set on the two of the two ends of underframe 1
Group trustship device 4, every group of trustship device 4 is located at the outside of one group of rolling pipe device 3 respectively.
Specifically, trustship device 4 includes：On trustship bearing 401, the top surface for being arranged on underframe 1；Trustship arm 402, one end with
Trustship bearing 401 is rotatably connected；Trustship axle 403, is rotatably arranged in the other end of trustship arm 402；Trustship wheel 404, Gu
Surely it is sleeved on trustship axle 403, and the groove for accommodating steel pipe 5 is provided with the wheel face of trustship wheel 404；Trustship electric hydaulic
Cylinder 405, connection end is rotatably arranged on the top surface of underframe 1, and drive end is connected with trustship arm 402.
It should be noted that pipe pressing device 2 is with rolling pipe device 3 in same perpendicular, and two groups of rolling pipe devices 3 are distinguished
Both sides positioned at the lower section of pipe pressing device 2, to provide firm by two groups of rolling pipe devices 3 for the both sides that steel pipe 5 to be bending pushes point
Support.Pipe pressing device 2 and rolling pipe device 3 described in the embodiment of the present invention is common for this area, reference can be made to background skill
Structure described in art, specifically, pipe pressing device includes：Framework 201, is arranged on underframe 1；Pressure pipe electrohydraulic cylinder 202, if
Put at the top of framework 201；Travelling carriage 203, is connected with the drive end of pressure pipe electrohydraulic cylinder 202, to be transported along framework about 201
It is dynamic；Pressure pipe axle 204, is rotatably arranged in framework 201；Pressure pipe wheel 205, is fixedly set on pressure pipe axle 204, pressure pipe wheel
The groove for accommodating steel pipe 5 is provided with 205 wheel face.Rolling pipe device 3 includes：Pipe support 301 is rolled, is arranged on underframe 1；
Roller shaft 302, is rotatably arranged on rolling pipe support 301；Pipe wheel 303 is rolled, is fixedly set on roller shaft 302, pipe wheel is rolled
The groove for accommodating steel pipe 5 is also equipped with 303 wheel face.When carrying out bend pipe operation, the following side of steel pipe is located at rolling and managed
On wheel 303 and trustship wheel 404, and upper lateral part is located in the groove of pressure pipe wheel 205, and above-mentioned three kinds of wheels can be in corresponding wheel shaft
Lower rotation is driven, so as to reduce sliding friction of the steel pipe in advance or retrogressing with three kinds of wheels, is easy to the front and rear of steel pipe position
Adjustment.
The operation principle of electric hydaulic cold bending machine provided in an embodiment of the present invention is as follows：
Mark several to push point on steel pipe 5 to be bending, steel pipe 5 to be bending is then ridden over into two groups of rolling pipe devices 3
On the trustship wheel 404 for rolling pipe wheel 303 and two groups of trustship devices 4, pressure pipe wheel 205 is set to be directed at first pushing of steel pipe 5 to be bending
Point, drives pressure pipe axle 204 to be moved downward along framework 201, makes pressure pipe wheel 205 to steel to be bending by pressure pipe electrohydraulic cylinder 202
First of pipe 5 pushes point and bent.After first, which pushes point, is bent, the two ends certainty of steel pipe 5 is tilted therewith, is caused
The two ends of steel pipe 5 lose the support of trustship wheel 404, trustship electrohydraulic cylinder 405 is driven trustship arm 402, with trustship arm
402 be round dot with the tie point of trustship bearing 401, and arcuate movement is done in perpendicular using the length of trustship arm 402 as radius,
So that the trustship wheel 404 and trustship axle 403 of the end of trustship arm 402 connect again close to steel pipe 5 to be bending with steel pipe 5 to be bending
Closely and support is provided for it, then adjust the position of steel pipe 5 to be bending, the second pushing point is aligned with pressure pipe wheel 205, start pressure
The driving pressure pipe of pipe electrohydraulic cylinder 202 wheel 205 pushes point to the second of steel pipe 5 to be bending and applies pressure.By that analogy, to be curved
Other pushing points on steel pipe 5 processed are suppressed, and the position of adjustment trustship wheel 404 in time, are that the two ends of steel pipe 5 to be bending are carried
For stable support, it is ensured that steel pipe 5 bends being smoothed out for process.From pipe pressing device 2 and rolling pipe device after the completion of the compacting of steel pipe 5
Take out 3 side, you can subsequently used.
Electric hydaulic cold bending machine provided in an embodiment of the present invention, is that steel pipe 5 to be bending is provided by two groups of rolling pipe devices 3
Support, applies pressure to the predetermined pushing point of steel pipe 5 to be bending by pipe pressing device 2, realizes bending for steel pipe 5 to be bending.It is logical
Cross and trustship device 4 is set up on underframe 1, before steel pipe 5 to be bending is bent, provide and more fully support for two end.
And because steel pipe 5 to be bending is provided with multiple predetermined pushing points on along its length, pipe pressing device 2 need to it is multiple push point by
One is pushed, and after first predetermined pushing point of steel pipe 5 to be bending is bent, its two ends is necessarily tilted therewith, causes to treat
The two ends for bending steel pipe 5 depart from trustship device 4 and lose support.Trustship arm 402 is now driven by trustship electrohydraulic cylinder 405
Upwards motion, make trustship wheel 404 and trustship axle 403 again with steel pipe 5 to be bending tilt two end in contact and provide support for it,
Provided safeguard for steel pipe 5 to be bending in next predetermined bending for pushing point.It can be seen that, electric hydaulic provided in an embodiment of the present invention is cold
Bending machine, can make the held stationary of steel pipe 5 to be bending during bending and to bend effect good, easy to use, suitable for scale
Popularization and application.
As shown in Figure 2, the pressure pipe wheel 205 in pipe pressing device 2 is used to apply pressure to steel pipe 5 to be bending, and framework 201 is
Pressure pipe wheel 205 provides space and support.In order that framework 201 keeps firm, four are provided with the top surface of underframe 1 admittedly
Determine leg 206, four inclines of framework 201 are inserted in four Convenient tables 206 respectively, with the first fixed pin shaft also cross Convenient table
206 and framework 201, so that the two is fixed.The bottom of Convenient table 206 is provided with a circle engaging lug, will be connected by fixing bolt
Ear is fixedly connected with the top surface of underframe 1, is easily installed and is dismantled.Meanwhile, Convenient table 206 has certain height, framework 201
It can be kept upright and steadily after incline insertion.In order to further improve stability of the framework 201 on underframe 1, framework 201
Incline should have certain width and thickness, so that the combination of incline and Convenient table 206 is more firm, it is to avoid framework 201 occurs
The problems such as tilting, bend.
Pressure pipe wheel 205 is sleeved on pressure pipe axle 204, and pressure pipe axle 204 is rotatably connected with pressure pipe electrohydraulic cylinder 202, with
The up and down motion of pressure pipe axle 204 is driven by pressure pipe electrohydraulic cylinder 202, and then adjusts pressure pipe wheel 205 to steel pipe 5 to be bending
Push and discharge.The bottom of pressure pipe electrohydraulic cylinder 202 is set with and is fixed with adpting flange, the top of adpting flange and framework 201
Portion is fixedly connected, so that the outer framework of pressure pipe electrohydraulic cylinder 202 is fixed on the top of framework 201, while pressure pipe electric hydaulic
The drive end of cylinder 202 longitudinally through the top of framework 201 space, and can the lengthwise movement in above-mentioned space, be easy to pressure pipe electronic
Hydraulic cylinder 202 smoothly drives pressure pipe axle 204 and pressure pipe wheel 205 to move up and down, it is ensured that the smooth press-bending of steel pipe 5 to be bending.
Electrohydraulic pipe bender also includes the travelling carriage 203 being arranged in framework 201, and travelling carriage 203 includes pressing cross
Four horizontal mounting arms of distribution, specially one long-armed and three galianconism, long-armed and galianconism is respectively protruding into four sides of framework 201
Face, framework 201 provides end slipway equivalent to for the long-armed and galianconism of cross travelling carriage 203, is easy to cross travelling carriage
203 up and down motion.The horizontal mounting arm stretched out outside framework 201 is as long-armed, and pressure pipe axle 204 is rotatably arranged in long-armed
On end face, because the length of long-armed stretching framework 201 side is larger, so pressure pipe axle 204 is arranged on into energy on long-armed end face
It is enough to avoid the obstruction that pressure pipe axle 204 moves up and down to cross travelling carriage 203 as far as possible.The top of cross travelling carriage 203 and pressure
The drive end of pipe electrohydraulic cylinder 202 is connected by bearing pin, in order to drive cross to slide by pressure pipe electrohydraulic cylinder 202
Incline of the frame 203 along framework 201 is moved up and down.
In embodiments of the present invention, after using cross travelling carriage 203, pressure pipe axle 204 and it is sleeved on pressure pipe axle 204
Pressure pipe wheel 205 is by positioned at the outside of framework 201.If using other connection frameworks, such as hollow square framework will just
Cube framework is placed in framework 201, using connection bearing pin 207 also cross framework 201 and the side wall of square framework, and is made just
The top of cube framework is connected with the drive end of pressure pipe electrohydraulic cylinder 202, and pressure pipe axle 204 is rotatably mounted around into connecting pin
On axle 207, you can on the basis of ensureing that pressure pipe axle 204 is freely rotated, driven by the drive end of pressure pipe electrohydraulic cylinder 202
Pressure pipe axle 204 moves up and down, and is easy to the adjustment of pressure pipe axle 204 and the position of pressure pipe wheel 205.But now pressure pipe wheel 205 and pressure pipe axle
204 are respectively positioned on the inside of framework 201, and steel pipe 5 to be bending also must be positioned at the inside of framework 201, therefore, steel to be bending when bending
The diameter of pipe 5 will be limited by the width of framework 201 so that framework 201 is poor to the conformability of different-diameter steel pipe 5.
And use after cross travelling carriage 203, positioned at the outside of framework 201 when steel pipe 5 to be bending is bent, with more fully bending sky
Between, do not influenceed by the width of framework 201.In addition, the groove that a circle is used to accommodate steel pipe 5 is provided with the periphery of pressure pipe wheel 205,
By processing the groove of different-diameter on different pressure pipe wheels 205, when suppressing the steel pipe 5 of different-diameter, different pressures are changed
Pipe wheel 205 can meet the requirement that bends of different-diameter steel pipe 5, and easy to use, applicability is stronger.
In order to realize pressure pipe axle 204 and cross travelling carriage 203 it is long-armed between be rotatably connected, electric hydaulic clod wash
Pipe machine also includes the first pivoting support, and the first pivoting support is part commonly used in the art, and it includes inner ring, outer ring, Yi Jishe
The rolling element between inner ring and outer ring is put, can be relatively rotated between inner ring and outer ring.Inner ring is sleeved on long-armed outer end,
One end of pressure pipe axle 204 is provided with the first connecting groove, and outer ring is inlaid in the first connecting groove.By the first pivoting support,
Connected long-armed with pressure pipe axle 204, equivalent to pressure pipe axle 204 to be sleeved on to long-armed end, enable pressure pipe axle 204 around
Long-armed to rotate, i.e., when length direction of the steel pipe 5 to be bending along underframe 1 is moved, pressure pipe axle 204 and pressure pipe wheel 205 can turn therewith
It is dynamic, the sliding friction between pressure pipe wheel 205 and steel pipe to be bending 5 is reduced, is easy to steel pipe 5 to be bending to push the adjustment of point position.
The external stability of pressure pipe axle 204 is set with pressure pipe wheel 205, by setting pressable on the side wall of pressure pipe axle 204
The first connecting key 208, and keyway is set on the side wall of pressure pipe wheel 205, pressure pipe axle 204 is relatively fixed with pressure pipe wheel 205,
By the rotation of the rotation control pressure pipe wheel 205 of pressure pipe axle 204, to make the groove and steel pipe 5 to be bending on the periphery of pressure pipe wheel 205
All the time it is in close contact, is easy to steel pipe 5 to be bending being bent into suitable radian.In order to which pressure pipe wheel 205 further is fixed on into pressure
On pipe axle 204, the outer end of pressure pipe axle 204 is additionally provided with the first end cap 209, is fixed the first end cap 209 by fixing bolt
In the outer end of pressure pipe axle 204, it is to avoid pressure pipe wheel 205 is slipped from the outer end of pressure pipe axle 204.Meanwhile, the first end cap 209 and pressure
Being detachably connected between the outer end of pipe axle 204, is easy to the replacing of pressure pipe wheel 205.When the diameter of steel pipe 5 to be bending is different,
By changing the pressure pipe wheel 205 with different-diameter groove, you can electric hydaulic cold bending machine is applied to different-diameter steel pipe 5
Bend.
Because the rolling pipe support 301 on the top surface of underframe 1 can provide support for steel pipe 5 to be bending, therefore, for the ease of branch
The adjustment of support point position, rolling pipe support 301 should be able to along its length be slided relative to underframe 1, so that rolling pipe support 301
Correct position with rolling pipe wheel 303 in steel pipe 5 to be bending provides stable support.Specifically, it is provided with linear ramp on underframe 1
101, the bottom of rolling pipe support 301 is provided with strip groove 3011 along its length, for accommodating linear ramp 101, rolls pipe branch
Seat 301 is equivalent to sliding block, and rolling pipe support 301 is formed by the strip groove 3011 of its bottom with linear ramp 101 slidably to be connected
Connect, in order to roll adjustment of the pipe support 301 relative to the Support Position of steel pipe 5 to be bending.But the Support Position of steel pipe 5 to be bending is usual
Only need to adjust in less scope, so rolling pipe support 301 also only needs to adjust in less scope.In order to incite somebody to action
The adjustment limitation for rolling pipe support 301 within the specific limits, connection through hole is provided with the relative side wall of strip groove 3011, and straight
Strip through-hole 1011 is provided with along its length on the relative side wall of line slideway 101, by the second fixed pin shaft 304 also cross even
Hole and strip through-hole 1011 are connected, so as to roll the length along linear ramp 101 in the range of strip through-hole 1011 of pipe support 301
Move in direction.In order to prevent horizontally disposed second fixed pin shaft 304 from being slid from strip through-hole 1011 or connection through hole, second
Be additionally provided with split pin 309 on fixed pin shaft 304, split pin 309 longitudinally through the afterbody of the second fixed pin shaft 304 pin hole,
So that the second fixed pin shaft 304 can in strip through-hole 1011 smooth sliding.When rolling pipe support 301 is adjusted to suitable position
Postpone, strip groove 3011 is fixed on the side wall of linear ramp 101 by fastening bolt 308, so that rolling pipe support 301 exists
Bend and keep stable during steel pipe 5, make steel pipe 5 to be bending to bend radian more accurate.
The adjustment of the position in the strip through-hole 1011 of linear ramp 101 of pipe support 301 is rolled, can be by adjusting reality manually
It is existing, a rolling pipe electrohydraulic cylinder 306 can also be set in the top of linear ramp 101, driven by rolling pipe electrohydraulic cylinder 306
Motion of the dynamic rolling pipe support 301 along the length direction of linear ramp 101, is easy to roll the adjustment of the position of pipe support 301.Specifically, directly
Hold-down support 307 is provided with the top surface of line slideway 101, the connection end of rolling pipe electrohydraulic cylinder 306 connects with hold-down support 307
Connect, drive end is connected with rolling pipe support 301, by rolling 306 pairs of rolling pipe supports 301 of pipe electrohydraulic cylinder relative to steel pipe to be bending
5 strong point is adjusted, and requirement is bent with adapt to different-diameter steel pipe 5.
In order to realize being rotatably connected between roller shaft 302 and the rolling side wall of pipe support 301, electric hydaulic cold bending machine is also
Including the second pivoting support.The structure of second pivoting support is consistent with the first pivoting support, also including inner ring, outer ring and rolling
Body.Wherein, inner ring is sleeved on the end of roller shaft 302, and the second connecting groove, second are provided with the side wall for rolling pipe support 301
The outer ring of pivoting support is inlaid in the second connecting groove, to realize roller shaft 302 in rolling pipe support by the second pivoting support
Freely rotating on 301 side walls.When the pushing point of steel pipe 5 to be bending produces bending due to the pressure of pressure pipe wheel 205, push
The steel pipe to be bending 5 of point both sides can be tilted therewith, the contact position of rolling pipe wheel 303 and steel pipe 5 to be bending on roller shaft 302
It can change, the rotation of roller shaft 302 helps to reduce the friction between rolling pipe wheel 303 and steel pipe to be bending 5, makes to be bending
Steel pipe 5 to bend process more smooth and accurate.
The external stability of roller shaft 302 is set with rolling pipe wheel 303, by setting pressable on the side wall of roller shaft 302
The second connecting key 3010, and rolling pipe wheel 303 side wall on keyway is set, make roller shaft 302 with roll pipe wheel 303 it is relatively solid
It is fixed, with by the rotation of the rotation control rolling pipe wheel 303 of roller shaft 302, make the groove on the periphery of rolling pipe wheel 303 all the time with it is to be curved
Steel pipe 5 processed is in close contact, and is that steel pipe 5 to be bending provides stable support.In order to which rolling pipe wheel 303 further is fixed on into roller shaft
On 302, the outer end of roller shaft 302 is also equipped with the second end cap 3012, is fixed on the second end cap 3012 by fixing bolt
The outer end of roller shaft 302, it is to avoid rolling pipe wheel 303 is slipped from the outer end of roller shaft 302.Roll the groove and pressure on pipe wheel 303
Groove on pipe wheel 205 is in the same size, and when pressure pipe wheel 205 applies pressure to steel pipe 5 to be bending, rolling pipe wheel 303 can be to treat
The both sides offer support that steel pipe 5 pushes point is provided.When needing to bend the steel pipe 5 of different-diameter, there is different-diameter by changing
The rolling pipe wheel 303 of groove, you can make electric hydaulic cold bending machine be applied to bending for different-diameter steel pipe 5.
For the ease of the adjustment of steel pipe 5 to be bending position on rolling pipe wheel 303, electric hydaulic cold bending machine also includes hydraulic pressure
Motor 305, the drive shaft of hydraulic motor 305 is stretched into the interconnecting hole of roller shaft 302, and is connected by way of connecting key,
To drive roller shaft 302 and rolling pipe wheel 303 to rotate by hydraulic motor 305, so that drive steel pipe 5 to be bending to advance or retreat,
It is easy to the feeding of steel pipe 5 to be bending, pressure pipe wheel 205 is suppressed multiple points that push one by one.
The length of steel pipe 5 to be bending is generally large, and rolls pipe support 301 due to needing in the bent buckled position of steel pipe 5 to be bending
Both sides provide support for steel pipe 5, therefore also relatively near apart from the distance of the bent buckled position of steel pipe 5 to be bending, this causes apart to be curved
The two ends of the bent buckled position of steel pipe 5 processed farther out are in vacant state, lack necessary support, are unfavorable for bending for steel pipe 5 to be bending
Process.Therefore, in order to give the offer of two ends of steel pipe 5 to be bending necessary support, the electric hydaulic cold bending in the present invention
Machine also includes two groups of trustship devices 4 for being located at the two ends of underframe 1 respectively.Every group of trustship device 4 includes：Trustship bearing 401, is arranged on
On the top surface of underframe 1, two trustship bearings 401 are located at the outside of two rolling pipe supports 301 respectively, and exist with rolling pipe support 301
In same perpendicular；Trustship arm 402, one end is connected with trustship bearing 401；Trustship axle 403, is rotatably arranged in trustship arm
402 other end；Trustship wheel 404, is fixedly set on trustship axle 403, is provided with the wheel face of trustship wheel 404 for accommodating steel
The groove of pipe 5；Trustship electrohydraulic cylinder 405, fixing end is arranged on the top surface of underframe 1, and drive end is connected with trustship arm 402.
Wherein, as shown in Figure 3, the length of trustship axle 403 is slightly larger than the diameter of steel pipe 5 to be bending, and trustship wheel 404 is fixedly set in support
Pipe axle 403, or the trustship wheel 404 of two truncated cone-shapeds can also be selected, the larger bottom surface of the truncated cone-shaped is close to trustship axle 403
End, now roller shaft 302 and two one open grooves of formation of rolling pipe wheels 303, can be used for accommodating steel pipe to be bending
5, and arc outer wall of the gradient just with steel pipe 5 to be bending of the side of trustship wheel 404 be engaged, so as to avoid steel to be bending
Pipe 5 prevents steel pipe 5 to be bending from trustship wheel 404 and rolling pipe wheel 303 relative to the lateral movement of trustship wheel 404 and rolling pipe wheel 303
Side tumble, and provide more firm support for steel pipe 5 to be bending.As shown in Figure 4, it is additionally provided with hydraulic cylinder on underframe 1
Bearing 407, the connection end of trustship electrohydraulic cylinder 405 is rotatably connected by bearing pin and the side wall of hydraulic cylinders bearing 407, works as support
When the drive end driving trustship arm 402 and trustship axle 403 of pipe electrohydraulic cylinder 405 and the motion of trustship wheel 404, by trustship arm
The limitation of 402 length, trustship axle 403 and trustship wheel 404 by using the tie point of trustship arm 402 and trustship bearing 401 as round dot, with
The length of trustship arm 402 is that radius does arcuate movement in perpendicular, during in order to be tilted at the two ends of steel pipe 5 to be bending,
Follow the end of steel pipe 5 to be bending to move upwards, provide support for its two ends during the bending of steel pipe 5 to be bending, make to treat
The held stationary of steel pipe 5 is bent, is easy to improve the precision that steel pipe 5 to be bending is bent.
In order to realize rotatable setting of the trustship axle 403 in the end of trustship arm 402, the two ends of trustship axle 403 are set respectively
There is rolling bearing, each rolling bearing is inlaid in bearing block 406, two bearing blocks 406 are separately positioned on the top surface of trustship arm 402
Both sides.So that trustship axle 403 rotates in bearing block 406, trustship wheel 404 is set to follow the rotation of steel pipe 5 to be bending and turn
It is dynamic, reduce the frictional force between trustship wheel 404 and the side wall of steel pipe to be bending 5, it is ensured that the two ends of steel pipe 5 to be bending are in different height
When trustship 404 support to steel pipe 5 to be bending of wheel.
Presently preferred embodiments of the present invention is the foregoing is only, the protection domain being not intended to limit the invention is all in this hair
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in protection scope of the present invention
Within.
Claims (9)
1. a kind of electric hydaulic cold bending machine, including underframe (1), the pipe pressing device (2) that is arranged on the underframe (1) and two groups
Pipe device (3) is rolled, the both sides that pipe device (3) is symmetrically positioned in below the pipe pressing device (2) are rolled described in two groups；
Characterized in that, the electric hydaulic cold bending machine also includes：It is symmetricly set on two groups of trustships at the underframe (1) two ends
Device (4), trustship device (4) described in every group is located at the outside of rolling pipe device (3) described in one group respectively；
The trustship device (4) includes：
On trustship bearing (401), the top surface for being arranged on the underframe (1)；
Trustship arm (402), one end is rotatably connected with the trustship bearing (401)；
Trustship axle (403), is rotatably arranged in the other end of the trustship arm (402)；
Trustship wheel (404), is fixedly set on the trustship axle (403), and be provided with use on the wheel face of the trustship wheel (404)
In the groove for accommodating steel pipe (5)；
Trustship electrohydraulic cylinder (405), connection end is rotatably arranged on the top surface of the underframe (1), drive end with it is described
Trustship arm (402) is connected.
2. electric hydaulic cold bending machine according to claim 1, it is characterised in that the pipe pressing device (2) includes：Framework
(201) on the top surface for, being arranged on the underframe (1)；
Pressure pipe electrohydraulic cylinder (202), is arranged on the top of the framework (201)；
Travelling carriage (203), in the framework (201), and a horizontal mounting arm of the travelling carriage (203) stretches out the frame
The outside of frame (201), the top of the travelling carriage (203) is connected with the drive end of the pressure pipe electrohydraulic cylinder (202), with logical
Crossing the pressure pipe electrohydraulic cylinder (202) drives the travelling carriage (203) to be moved up and down along the framework (201)；
Pressure pipe axle (204), it is outside positioned at the framework (201), and be rotatably connected with the end face of the horizontal mounting arm；
Pressure pipe wheel (205), is fixedly set on the pressure pipe axle (204), and being provided with the wheel face of the pressure pipe wheel (205) is used for
Accommodate the groove of the steel pipe (5).
3. electric hydaulic cold bending machine according to claim 2, it is characterised in that the electric hydaulic cold bending machine is also wrapped
The first pivoting support is included, the inner ring of first pivoting support is fixedly set in the end of the horizontal mounting arm, the pressure pipe axle
(204) one end is provided with the first connecting groove, and the outer ring of first floating bearing is inlaid in first connecting groove.
4. electric hydaulic cold bending machine according to claim 3, it is characterised in that the rolling pipe device (3) includes：Rolling pipe
On bearing (301), the top surface for being arranged on the underframe (1), and it can be slided along the length direction of the underframe (1)；
Roller shaft (302), is rotatably arranged on the rolling pipe support (301)；
Pipe wheel (303) is rolled, is fixedly set on the roller shaft (302), is also equipped with using on the wheel face of the rolling pipe wheel (303)
In the groove for accommodating the steel pipe (5).
5. electric hydaulic cold bending machine according to claim 4, it is characterised in that be provided with straight line on the underframe (1)
Slideway (101), the bottom of the rolling pipe support (301) is provided with strip groove (3011) along its length, described for accommodating
Connection through hole is provided with linear ramp (101), the relative side wall of the strip groove (3011)；
Strip through-hole (1011) is provided with along its length on the side wall of the linear ramp (101), by the second fixed pin shaft
(304) also cross the connection through hole and the strip through-hole (1011), make the rolling pipe support (301) logical in the bar shaped
Moved in the range of hole (1011) along the length direction of the linear ramp (101).
6. electric hydaulic cold bending machine according to claim 4, it is characterised in that the electric hydaulic cold bending machine is also wrapped
The second pivoting support is included, the inner ring of second pivoting support is sleeved on the end of the roller shaft (302)；The rolling pipe support
(301) the second connecting groove is provided with side wall, the outer ring of second pivoting support is inlaid in second connecting groove
It is interior.
7. electric hydaulic cold bending machine according to claim 4, it is characterised in that the electric hydaulic cold bending machine is also wrapped
Hydraulic motor (305) is included, the drive shaft of the hydraulic motor (305) is connected with the roller shaft (302).
8. electric hydaulic cold bending machine according to claim 4, it is characterised in that the electric hydaulic cold bending machine is also wrapped
Include and hold-down support (307) is provided with rolling pipe electrohydraulic cylinder (306), the top surface of the underframe (1), the rolling pipe electric hydaulic
The connection end of cylinder (306) is connected with the hold-down support (307), and drive end is connected with the rolling pipe support (301).
9. electric hydaulic cold bending machine according to claim 1, it is characterised in that the two ends of the trustship axle (403) point
Rolling bearing is not provided with, each rolling bearing is inlaid in bearing block (406), two bearing blocks (406) are respectively
It is arranged on the both sides of trustship arm (402) top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114701.1A CN106975706A (en) | 2017-02-28 | 2017-02-28 | A kind of electric hydaulic cold bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114701.1A CN106975706A (en) | 2017-02-28 | 2017-02-28 | A kind of electric hydaulic cold bending machine |
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| CN106975706A true CN106975706A (en) | 2017-07-25 |
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| CN201710114701.1A Pending CN106975706A (en) | 2017-02-28 | 2017-02-28 | A kind of electric hydaulic cold bending machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511412A (en) * | 2017-09-02 | 2017-12-26 | 安徽海拓志永智能装备股份有限公司 | Work pieces process bending forcing press |
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Application publication date: 20170725 |