CN210586551U

CN210586551U - Multifunctional roll bending machine

Info

Publication number: CN210586551U
Application number: CN201921276883.3U
Authority: CN
Inventors: 黄光明
Original assignee: Jiangyin Hongye Mechanical Co ltd
Current assignee: Jiangyin Hongye Mechanical Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-22
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a multi-functional bending roll machine, be in including the frame with setting up respectively take turns mechanism, pinch roller mechanism in the frame and control the tight part in top, take turns mechanism includes and is in by main motor drive rotatory main shaft and setting epaxial action wheel, pinch roller mechanism sets up including compressing tightly with the lift seat compress tightly with the last guide pulley shaft of lift seat and connect compress tightly with the epaxial guide pulley that compresses tightly of guide pulley, just the guide pulley that compresses tightly is located the upside position of action wheel, control the tight part in top including setting up respectively the tight part in left top and the right top of the action wheel left and right sides tight part, just left side top tight part and right top tight part include respectively that the lift box sets up with rotating the tight wheel in top on the lift box. The utility model discloses a can use triaxial to roll curved and four-axis to roll curved two kinds of roll curved modes on a roll bender to can carry out the roll of spiral return bend and bend, and roll curved precision height.

Description

Multifunctional roll bending machine

Technical Field

The utility model relates to a roll bender technical field, concretely relates to multi-functional roll bender.

Background

The existing roll bending machine for bending the pipe has two structural types, namely a three-axis roll bending machine and a four-axis roll bending machine. The three-axis roll bending machine is controlled by three rollers, the radius after roll bending is adjusted by changing the clamping distance of the rollers, the steering of the rollers is changed, forward and reverse rotation can be realized, and a 360-degree circular pipe can be processed; the four-axis bending roll machine is controlled by four rollers, the rollers are clamped up and down, the supporting rollers and the bending radius adjusting rollers are respectively arranged on two sides of the four-axis bending roll machine, a fed pipe is clamped by the upper and lower rollers, the position of the bending radius adjusting rollers is changed, and different bending radii of the pipe are achieved.

The problems of the roll bending machine are that:

the first and third-axis bending roll can realize positive and negative movement during bending, but both ends of the pipe are inclined at the same time, which is not beneficial to feeding the pipe.

Secondly, when the four-axis bending roll machine rolls and bends a pipe, one section of the pipe is kept horizontal, the other section of the pipe is inclined, the pipe is convenient to feed, but the pipe can only run in one direction, and the pipe cannot be rolled and bent in a forward and reverse rotation mode.

Thirdly, the existing three-axis bending roll and four-axis bending roll have larger deviation of the radius of the circular arc of the bent pipe.

Fourth, the conventional three-axis bending roll and four-axis bending roll cannot bend a spiral bent pipe (the bent pipe has a shape similar to a coil spring, and such a spiral bent pipe is often used as a heat exchange pipe used as a heat exchange component).

SUMMERY OF THE UTILITY MODEL

The utility model aims at:

(1) the method is characterized in that two roll bending modes of three-axis roll bending and four-axis roll bending are simultaneously realized on one roll bending machine;

(2) the left and right roll bending directions can be selected at will when the four shafts roll bending;

(3) the roll bending precision is improved;

(4) the bending of the spiral bent pipe can be carried out, and the high-precision roll bending radius and the high-precision roll bending pitch of the spiral bent pipe are realized.

The utility model discloses specific technical scheme as follows:

the utility model provides a multi-functional roll bending machine, includes the frame and sets up respectively tight part in initiative wheel mechanism, pinch roller mechanism and the left and right sides in the frame, initiative wheel mechanism includes by the rotatory main shaft of main motor drive and sets up epaxial action wheel, pinch roller mechanism is in including compressing tightly with the lift seat with rotate the setting compress tightly with on the lift seat leading wheel axle and connect the epaxial pressure guide pulley of leading wheel, just the pressure guide pulley is located the upside position of action wheel, the tight part in the left and right sides top including setting up respectively the tight part in the left side and the right side of action wheel left side top, just the tight part in the left side top and right side top includes the lift box respectively and rotates the setting and be in the tight wheel in the top on the lift box.

In the multifunctional roll bending machine, the pressing guide wheel and the driving wheel are arranged up and down, the left side and the right side of the driving wheel are respectively provided with the jacking wheel, and a user can randomly select three working modes, namely three-axis roll bending, left-side feeding four-axis roll bending and right-side feeding four-axis roll bending. The specific operation mode is as follows:

a. and (3) three-axis roll bending: the pipe body is fed between the pressing guide wheel and the driving wheel, the pressing guide wheel presses downwards, the pressing wheels on the left pressing part and the right pressing part lift upwards, the driving wheel rotates clockwise or anticlockwise under the driving of the main motor, and the required bending radius of the pipe body is obtained by adjusting the upward lifting distance of the pressing wheels on the left side and the right side.

b. Roll bending of left side pay-off four-axis: the pipe body is fed from the left side to a position between the compaction guide wheel and the driving wheel, the compaction guide wheel compacts downwards, the left compaction wheel stops at a zero position, the right compaction wheel jacks upwards, the driving wheel rotates clockwise under the driving of the main motor, the required bending radius of the pipe body is obtained by adjusting the upward jacking distance of the right compaction wheel, and the driving wheel is prohibited from rotating anticlockwise.

c. And (3) rolling and bending four shafts for feeding on the right side: the pipe body is fed from the right side to a position between the compaction guide wheel and the driving wheel, the compaction guide wheel compacts downwards, the right side compaction wheel stops at a zero position, the left side compaction wheel jacks upwards, the driving wheel rotates anticlockwise under the driving of the main motor, the required bending radius of the pipe body is obtained by adjusting the distance of the left side compaction wheel jacking upwards, and the driving wheel is forbidden to rotate clockwise.

In the utility model, the main motor drives the main shaft to rotate through the main speed reducer, and the lifting seat for compressing realizes lifting through the rotary compression screw rod connected with the lifting seat for compressing; the tight part in left side top and the tight part in right top still include jacking motor, speed reducer and jacking screw rod for the jacking respectively, jacking motor connects the speed reducer for the jacking, jacking screw rod is connected to the speed reducer for the jacking, jacking screw rod connects the lift box body drives the lift box body realizes going up and down.

Preferably, the left and right tightening members further comprise a displacement sensor arranged on the frame and used for detecting the lifting height of the lifting box body.

As a further improvement, the utility model relates to a multi-functional roll bender still includes pitch initial tune and radius adjustment part concurrently, pitch initial tune and radius adjustment part is including setting up be located respectively in the frame the left side pitch initial tune of the action wheel left and right sides and radius adjustment part and right side pitch initial tune and radius adjustment part concurrently, left side pitch initial tune and radius adjustment part is including rotating the setting and is in the pitch initial tune gyro wheel of action wheel upper left side, right side pitch initial tune and radius adjustment part is including rotating the setting and is in the pitch initial tune gyro wheel of action wheel upper right side, just the pitch initial tune gyro wheel is flexible around telescopic machanism realizes through initial tune front and back telescopic machanism respectively to realize through radial telescopic machanism respectively the pitch initial tune gyro wheel is drawn close and is kept away from towards the bending radius central direction of return bend.

Above-mentioned through setting up pitch and radius adjustment part just, the body leans on in the guide slot of pitch initial adjustment gyro wheel during the roll bending, has controlled the crooked circular arc radius of roll bending through radial telescopic machanism on the one hand, and on the other hand telescopic machanism has also controlled the pitch of roll bending around through the initial adjustment to can roll bending out spiral return bend.

Preferably, telescopic machanism is in including adjusting the base, moving along the fore-and-aft direction around the preliminary adjustment horizontal telescopic shaft on the adjustment base, the front end of horizontal telescopic shaft is provided with pitch preliminary adjustment gyro wheel, horizontal telescopic shaft is flexible around realizing through front and back adjusting screw.

Preferably, the radial telescopic mechanism comprises an oblique sliding chute arranged on the frame, the adjusting base movably arranged in the oblique sliding chute is realized by connecting a radial adjusting screw of the adjusting base to the oblique sliding of the oblique sliding chute, and the oblique sliding direction of the adjusting base is obliquely arranged towards the center direction of the bending radius of the bent pipe; the lifting direction of the lifting box body is obliquely arranged towards the center direction of the bending radius of the bent pipe.

As a further improvement, the utility model relates to a multi-functional bending roll still includes pitch fine adjustment part, pitch fine adjustment part is including setting up oscilaltion part in the frame, connection flexible part, setting are in around the fine adjustment on the oscilaltion part flexible part front end's pitch fine adjustment gyro wheel around the fine adjustment, pitch fine adjustment gyro wheel is located one side top of pitch primary adjustment and radius adjustment part.

During operation, the screw pitch is preset through the screw pitch primary adjustment roller, the screw pitch error is detected by firstly bending the roller, the screw pitch is finely adjusted by utilizing the screw pitch fine adjustment roller, the front position and the rear position of the screw pitch primary adjustment roller are adjusted again, and the screw pitch primary adjustment roller and the screw pitch fine adjustment roller are ensured to be positioned on the same spiral line. After the fine adjustment, the bent thread pitch has higher precision.

Above-mentioned owing to set up pitch fine tuning part, and pitch fine tuning gyro wheel is located pitch primary adjusting holds one side top of radius adjustment part concurrently, for pitch primary tuning gyro wheel in the pitch primary adjusting holds the radius adjustment part concurrently, its distance apart from the roll extrusion position (compress tightly the position between guide pulley and the action wheel promptly) is far away to can control the pitch error of roll bending more accurately, and roll bending goes out the spiral return bend of higher pitch precision.

In the utility model, the up-down lifting component comprises a lifting motor, a lifting speed reducer, a lifting screw rod and a vertically arranged guide girder, the front and rear telescopic components of the fine adjustment are arranged on the guide girder in a sliding way, the lifting motor is connected with the lifting speed reducer, the lifting speed reducer is connected with the lifting screw rod, and the lifting screw rod is connected with the front and rear telescopic components of the fine adjustment and drives the front and rear telescopic components of the fine adjustment to move up and down along the guide girder; the fine adjustment front and rear telescopic part comprises a cantilever beam arranged in the front and rear direction, a roller seat arranged on the cantilever beam in a sliding manner, an upper fine adjustment roller and a lower fine adjustment roller which are arranged on the roller seat according to the upper and lower positions, and a fine adjustment screw rod connected with the roller seat, wherein the roller seat realizes the front and rear movement through a fine adjustment speed reducer connected with the fine adjustment screw rod and a fine adjustment motor connected with the fine adjustment speed reducer.

During roll bending, the upper fine adjustment roller or the lower fine adjustment roller is reasonably selected as the fine adjustment roller according to the size of the radius of a circular arc during roll bending, the upper fine adjustment roller can be selected to lean against the inner side of the circular arc pipe body of the bent pipe under the condition of large circular arc radius, and the lower fine adjustment roller can be selected to lean against the outer side of the circular arc pipe body of the bent pipe under the condition of small circular arc radius.

Preferably, limit position switches are arranged at two ends of the up-down lifting component and the front-back fine adjustment telescopic component.

The utility model discloses a multi-functional bending roll machine still includes control system.

Preferably, the control system adopts a PLC control system.

In order to facilitate the operation, the utility model discloses a be provided with supplementary work platform in multi-functional roll bending machine's the frame.

A roll bending method of a multifunctional roll bending machine comprises a three-axis roll bending method and a four-axis roll bending method, wherein the four-axis roll bending method comprises a left-side feeding four-axis roll bending method and a right-side feeding four-axis roll bending method;

the three-axis roll bending method comprises the following steps: feeding the pipe body between a compaction guide wheel and a driving wheel, compacting the pipe body downwards by the compaction guide wheel, jacking wheels on a left jacking part and a right jacking part upwards to jack up, rotating the driving wheel clockwise or anticlockwise under the driving of a main motor, and obtaining the required bending radius of the pipe body by adjusting the distance of the jacking wheels on the left side and the right side upwards;

the left-side feeding four-axis roll bending method comprises the following steps: feeding the pipe body from the left side to a position between a compaction guide wheel and a driving wheel, enabling the compaction guide wheel to compact downwards, enabling a left compaction wheel to stop at a zero position, enabling a right compaction wheel to jack upwards, enabling the driving wheel to rotate clockwise under the driving of a main motor, obtaining the required bending radius of the pipe body by adjusting the upward jacking distance of the right compaction wheel, and prohibiting the driving wheel from rotating anticlockwise;

the right-side feeding four-axis roll bending method comprises the following steps: the pipe body is fed from the right side to a position between the compaction guide wheel and the driving wheel, the compaction guide wheel compacts downwards, the right side compaction wheel stops at a zero position, the left side compaction wheel jacks upwards, the driving wheel rotates anticlockwise under the driving of the main motor, the required bending radius of the pipe body is obtained by adjusting the distance of the left side compaction wheel jacking upwards, and the driving wheel is forbidden to rotate clockwise.

Preferably, in the four-axis roll bending method, the pitch and the bending radius of the spiral bent pipe are initially adjusted by adjusting the front-back position of a pitch initial adjustment roller in a pitch initial adjustment and radius adjustment part and the radial position of the pitch initial adjustment roller relative to the center of the bending radius of the pipe body before bending, a pitch error is detected after trial bending for one turn, the pitch is finely adjusted by adjusting the front-back position of a pitch fine adjustment roller in a pitch fine adjustment part and the radial position of the pitch initial adjustment roller relative to the center of the bending radius of the pipe body, the front-back position of the pitch initial adjustment roller in the pitch initial adjustment and radius adjustment part and the radial position of the pitch initial adjustment roller relative to the center of the bending radius of the pipe body are reset after fine adjustment, and then formal.

The utility model has the advantages that:

first, the utility model discloses a multi-functional bending roll machine adopts the guide pulley and the action wheel that compress tightly of arranging from top to bottom, and a tight wheel in top is respectively arranged to the left and right sides of action wheel, and the user can select triaxial roll bending or left side pay-off four-axis roll bending, right side pay-off four-axis roll bending totally three kinds of working methods wantonly.

Second, the utility model discloses a multi-functional bending roll machine through setting up pitch primary adjustment and radius adjustment part, the body leans on in the guide slot of pitch primary adjustment gyro wheel during the roll bending, has controlled the crooked circular arc radius of roll bending through radial telescopic machanism on the one hand, and on the other hand telescopic machanism has also controlled the pitch of roll bending around through the primary adjustment to can roll bending out spiral return bend.

Third, the utility model discloses a multi-functional bending roll machine, owing to set up pitch fine tuning part, and pitch fine tuning gyro wheel is located one side top of pitch just transfer and radius adjustment part, for pitch just transfer and the pitch in the radius adjustment part just, its distance apart from the roll extrusion position (compress tightly the position between guide pulley and the action wheel promptly) is far away to can control the pitch error of roll bending more accurately, and roll bending goes out the spiral return bend of higher pitch precision.

Drawings

Fig. 1 is a schematic structural view of a multifunctional roll bending machine of the present invention;

FIG. 2 is a schematic structural view of the left and right urging members;

FIG. 3 is a schematic structural diagram of a radial telescopic mechanism;

FIG. 4 is a schematic view of the structure of the primary adjustment front and rear telescoping mechanism;

fig. 5 is a schematic view of the structure of the telescopic member before and after fine adjustment.

In the figure: 1. a frame, 2, a driving wheel mechanism, 3, a pinch wheel mechanism, 4, a main shaft, 5, a driving wheel, 6, a lifting seat for compaction, 7, a guide wheel shaft, 8, a pinch guide wheel, 9, a left jacking component, 10, a right jacking component, 11, a lifting box body, 12, a jacking wheel, 13, a rotary compaction screw rod, 14, a left pitch initial adjustment and radius adjustment component, 15, a right pitch initial adjustment and radius adjustment component, 16, a pitch initial adjustment roller, 17, a horizontal telescopic shaft, 18, a pipe body, 19, a pitch fine adjustment component, 20, an up-and-down lifting component, 21, a fine adjustment front-and-back telescopic component, 22, a pitch fine adjustment roller, 23, a lifting motor, 24, a lifting speed reducer, 25, a lifting screw rod, 26, a guide girder, 27, a cantilever beam, 28, a roller seat, 29, an upper fine adjustment roller, 30, a lower fine adjustment roller, 31, a fine adjustment screw rod, 32, and a main motor, 33. a main speed reducer;

in the figure: 34. jacking motor 35, jacking speed reducer 36, jacking screw rod 37, preliminary adjustment front and back stretching mechanism 38, adjusting base 39, radial stretching mechanism 40, oblique sliding chute 41, radial adjusting screw rod 42, bending radius center 43, fine adjustment speed reducer 44, fine adjustment motor 45 and front and back adjusting screw rod.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1:

as shown in figures 1 to 5, the embodiment of the multifunctional roll bending machine of the utility model comprises a frame 1, a driving wheel mechanism 2, a pinch roller mechanism 3 and a left and a right tightening part which are respectively arranged on the frame 1, the drive wheel mechanism 2 includes a main shaft 4 driven to rotate by a main motor 32 and a drive wheel 5 provided on the main shaft 4, the pinch roller mechanism 3 comprises a lifting seat 6 for compressing, a guide roller shaft 7 rotationally arranged on the lifting seat 6 for compressing, and a pinch guide roller 8 connected on the guide roller shaft 7, the pressing guide wheel 8 is positioned at the upper side part of the driving wheel 5, the left and right jacking parts comprise a left jacking part 9 and a right jacking part 10 which are respectively arranged at the left and right sides of the driving wheel 5, and the left tightening part 9 and the right tightening part 10 respectively comprise a lifting box body 11 and a tightening wheel 12 which is rotatably arranged on the lifting box body 11.

In the multifunctional roll bending machine, the pressing guide wheel 8 and the driving wheel 5 are arranged up and down, the left side and the right side of the driving wheel 5 are respectively provided with the jacking wheel 12, and a user can randomly select three working modes, namely three-axis roll bending, left-side feeding four-axis roll bending and right-side feeding four-axis roll bending. The specific operation mode is as follows:

a. and (3) three-axis roll bending: the pipe body 18 is fed between the pressing guide wheel 8 and the driving wheel 5, the pressing guide wheel 8 presses downwards, the pressing wheels 12 on the left pressing part 9 and the right pressing part 10 jack upwards, the driving wheel 5 rotates clockwise or anticlockwise under the driving of the main motor 32, and the required bending radius of the pipe body is obtained by adjusting the upward jacking distance of the pressing wheels 12 on the left side and the right side.

b. Roll bending of left side pay-off four-axis: the pipe body 18 is fed from the left side to a position between the compaction guide wheel 8 and the driving wheel 5, the compaction guide wheel 8 compresses downwards, the left compaction wheel 12 stops at a zero position, the right compaction wheel 12 jacks upwards, the driving wheel 5 rotates clockwise under the driving of the main motor 32, the required pipe body bending radius is obtained by adjusting the distance of the right compaction wheel 12 jacking upwards, and the driving wheel 5 is prohibited from rotating anticlockwise.

c. And (3) rolling and bending four shafts for feeding on the right side: the pipe body 18 is fed from the right side to a position between the compaction guide wheel 8 and the driving wheel 5, the compaction guide wheel 8 compresses downwards, the right compaction wheel 12 stops at a zero position, the left compaction wheel 12 jacks upwards, the driving wheel 5 rotates anticlockwise under the driving of the main motor 32, the required pipe body bending radius is obtained by adjusting the distance of the left compaction wheel 12 jacking upwards, and the driving wheel 5 is prohibited from rotating clockwise.

In this embodiment, the main motor 32 drives the main shaft 4 to rotate through a main speed reducer 33, and the lifting seat 6 for pressing is lifted through a rotary pressing screw 13 connected to the lifting seat 6 for pressing; the left jacking component 9 and the right jacking component 10 further respectively comprise a jacking motor 34, a speed reducer 35 for jacking and a jacking screw 36, the jacking motor 34 is connected with the speed reducer 35 for jacking, the speed reducer 35 for jacking is connected with the jacking screw 36, the jacking screw 36 is connected with the lifting box body 11 and drives the lifting box body 11 to realize lifting.

Preferably, the left and right tightening members further include a displacement sensor disposed on the frame 1 for detecting a height of the lifting box 11.

As a further improvement, the multifunctional roll bending machine of the embodiment also comprises a pitch primary adjusting and radius adjusting component, the pitch primary adjustment and radius adjustment component comprises a left pitch primary adjustment and radius adjustment component 14 and a right pitch primary adjustment and radius adjustment component 15 which are respectively arranged on the left side and the right side of the driving wheel 5 on the rack, the left-side pitch primary adjustment and radius adjustment part 14 comprises a pitch primary adjustment roller 16 rotatably arranged on the upper left of the driving wheel 5, the right-side pitch primary adjustment and radius adjustment part 15 comprises a pitch primary adjustment roller 16 rotatably arranged on the upper right of the driving wheel 5, and the pitch primary adjusting roller 16 respectively realizes front and back extension through a primary adjusting front and back extension mechanism 37, and the pitch primary adjusting roller 16 respectively approaches and departs towards the bending radius center 42 of the elbow pipe through a radial telescopic mechanism 39.

Above-mentioned through setting up pitch and radius adjustment part for the time, body 18 leans on in the guide slot of pitch primary control gyro wheel 16 during the roll bending, has controlled the crooked circular arc radius of roll bending through radial telescopic machanism 39 on the one hand, and on the other hand has also controlled the pitch of roll bending through telescopic machanism 37 around the primary control to can roll bending out spiral return bend.

Preferably, telescopic machanism 37 is in including adjusting base 38, along the fore-and-aft direction removal setting horizontal telescopic shaft 17 on the adjusting base 38, the front end of horizontal telescopic shaft 17 is provided with pitch preliminary adjustment gyro wheel 16, horizontal telescopic shaft 17 is flexible around realizing through front and back adjusting screw 45.

Preferably, the radial expansion mechanism 39 includes an oblique sliding slot 40 disposed on the frame 1, and the adjusting base 38 movably disposed in the oblique sliding slot 40, the adjusting base 38 realizes oblique sliding on the oblique sliding slot 40 through a radial adjusting screw 41 connected to the adjusting base 38, and the oblique sliding direction of the adjusting base 38 is inclined toward the bending radius center 42 of the elbow; the elevating direction of the elevating box body 11 is inclined toward the bending radius center 42 of the bent pipe.

As a further improvement, this embodiment multifunctional roll bending machine still includes pitch fine tuning part 19, pitch fine tuning part 19 is including setting up oscilaltion part 20 on the frame 1, connect flexible part 21 around the fine tuning on the oscilaltion part 20, set up and be in the pitch fine tuning gyro wheel 22 of flexible part 21 front end around the fine tuning, pitch fine tuning gyro wheel 22 is located pitch primary adjustment holds one side top of radius adjustment part concurrently.

During operation, the screw pitch is preset through the screw pitch primary adjusting roller 16, the screw pitch is firstly bent for one turn, the screw pitch error is detected, the screw pitch is finely adjusted through the screw pitch fine adjusting roller 22, the front position and the rear position of the screw pitch primary adjusting roller 16 are adjusted, and the screw pitch primary adjusting roller 16 and the screw pitch fine adjusting roller 22 are ensured to be positioned on the same spiral line. After the fine adjustment, the bent thread pitch has higher precision.

As the pitch fine adjustment component 19 is arranged and the pitch fine adjustment roller 22 is positioned above one side of the pitch primary adjustment and radius adjustment component, compared with the pitch primary adjustment roller 16 in the pitch primary adjustment and radius adjustment component, the distance from the rolling part (namely the part between the pressing guide wheel 8 and the driving wheel 5) is far, so that the pitch error of roll bending can be controlled more accurately, and the spiral bent pipe with higher pitch precision can be roll-bent.

In this embodiment, the up-down lifting member 20 includes a lifting motor 23, a lifting reducer 24, a lifting screw 25, and a guide girder 26 vertically installed, the fine adjustment front-rear telescopic member 21 is slidably installed on the guide girder 26, the lifting motor 23 is connected to the lifting reducer 24, the lifting reducer 24 is connected to the lifting screw 25, and the lifting screw 25 is connected to the fine adjustment front-rear telescopic member 21 and drives the fine adjustment front-rear telescopic member 21 to move up and down along the guide girder 26; the fine adjustment front and rear telescopic part 21 comprises a cantilever beam 27 arranged in the front and rear direction, a roller seat 28 arranged on the cantilever beam 27 in a sliding manner, an upper fine adjustment roller 29 and a lower fine adjustment roller 30 which are arranged on the roller seat 28 according to the upper and lower positions, and a fine adjustment screw rod 31 connected with the roller seat 28, wherein the roller seat 28 moves back and forth through a fine adjustment speed reducer 43 connected with the fine adjustment screw rod 31 and a fine adjustment motor 44 connected with the fine adjustment speed reducer 43.

During roll bending, the upper fine adjustment roller 29 or the lower fine adjustment roller 30 is reasonably selected as a fine adjustment roller according to the size of the radius of a circular arc during roll bending, the upper fine adjustment roller 29 can be selected to lean against the inner side of the circular arc pipe body of the bent pipe under the condition of large circular arc radius, and the lower fine adjustment roller 30 can be selected to lean against the outer side of the circular arc pipe body of the bent pipe under the condition of small circular arc radius.

Preferably, limit position switches are disposed at both ends of the up-down lifting member 20 and the fine adjustment front-rear telescopic member 21.

The multifunctional roll bending machine of the embodiment further comprises a control system.

Preferably, the control system adopts a PLC control system.

Example 2:

a roll bending method using the multifunctional roll bending machine of embodiment 1 includes a three-axis roll bending method and a four-axis roll bending method, and the four-axis roll bending method includes a left-side feeding four-axis roll bending method and a right-side feeding four-axis roll bending method;

the three-axis roll bending method comprises the following steps: feeding the pipe body 18 to a position between a compaction guide wheel 8 and a driving wheel 5, compacting the compaction guide wheel 8 downwards, jacking up the jacking wheels 12 on a left jacking part 9 and a right jacking part 10, rotating the driving wheel 5 clockwise or anticlockwise under the driving of a main motor 32, and obtaining the required bending radius of the pipe body by adjusting the distance of jacking up the jacking wheels 12 on the left side and the right side;

the left-side feeding four-axis roll bending method comprises the following steps: feeding the pipe body 18 from the left side to a position between the compaction guide wheel 8 and the driving wheel 5, enabling the compaction guide wheel 8 to compact downwards, enabling the left compaction wheel 12 to stop at a zero position, enabling the right compaction wheel 12 to jack upwards, enabling the driving wheel 5 to rotate clockwise under the driving of the main motor 32, obtaining the required bending radius of the pipe body by adjusting the upward jacking distance of the right compaction wheel 12, and prohibiting the driving wheel 5 from rotating anticlockwise;

the right-side feeding four-axis roll bending method comprises the following steps: the pipe body 18 is fed from the right side to a position between the compaction guide wheel 8 and the driving wheel 5, the compaction guide wheel 8 compresses downwards, the right compaction wheel 12 stops at a zero position, the left compaction wheel 12 jacks upwards, the driving wheel 5 rotates anticlockwise under the driving of the main motor 32, the required pipe body bending radius is obtained by adjusting the distance of the left compaction wheel 12 jacking upwards, and the driving wheel 5 is prohibited from rotating clockwise.

Preferably, in the four-axis roll bending method, the pitch and the bending radius of the helical bend pipe are initially adjusted by adjusting the front-rear position of the pitch initial adjustment roller 16 in the pitch initial adjustment and radius adjustment unit and the radial position with respect to the pipe bending radius center 42 before bending, respectively, a pitch error is detected after one trial bending, the pitch is finely adjusted by adjusting the front-rear position of the pitch fine adjustment roller 22 in the pitch fine adjustment unit 19 and the radial position with respect to the pipe bending radius center 42, and the front-rear position of the pitch initial adjustment roller 16 in the pitch initial adjustment and radius adjustment unit and the radial position with respect to the pipe bending radius center 42 are newly set after fine adjustment of the pitch, and then the full bending of the helical bend pipe is performed after adjustment.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a multifunctional roll bending machine, its characterized in that includes the frame and sets up respectively driving wheel mechanism, pinch roller mechanism in the frame about with tight part, driving wheel mechanism includes by the rotatory main shaft of main motor drive and sets up main epaxial action wheel, pinch roller mechanism is in including compressing tightly with the lifting saddle with rotate the setting compress tightly with last guide pulley shaft of lifting saddle and connect in the epaxial pressure guide pulley of guide pulley, just the pressure guide pulley is located the upside position of action wheel, about, push up tight part including setting up respectively the tight part in left side and the tight part in right side in top of action wheel left side, just left side push up tight part and right side push up tight part and include respectively the lift box and rotate the tight wheel in top on the lift box.

2. The multi-functional roll bending machine according to claim 1, wherein the main motor drives the main shaft to rotate through a main speed reducer, and the lifting seat for pressing is lifted and lowered through a rotary pressing screw rod connected with the lifting seat for pressing; the tight part in left side top and the tight part in right top still include jacking motor, speed reducer and jacking screw rod for the jacking respectively, jacking motor connects the speed reducer for the jacking, jacking screw rod is connected to the speed reducer for the jacking, jacking screw rod connects the lift box body drives the lift box body realizes going up and down.

3. The multi-functional roll bending machine according to claim 1, wherein said left and right urging members further comprise a displacement sensor provided on the frame for detecting the elevation height of said elevating box.

4. The multifunctional roll bending machine according to claim 2, further comprising a pitch primary adjustment and radius adjustment component, wherein the pitch primary adjustment and radius adjustment component comprises a left pitch primary adjustment and radius adjustment component and a right pitch primary adjustment and radius adjustment component which are arranged on the rack and located on the left and right sides of the driving wheel respectively, the left pitch primary adjustment and radius adjustment component comprises a pitch primary adjustment roller rotatably arranged on the left upper side of the driving wheel, the right pitch primary adjustment and radius adjustment component comprises a pitch primary adjustment roller rotatably arranged on the right upper side of the driving wheel, the pitch primary adjustment roller is respectively retractable forwards and backwards through a primary adjustment front-rear retractable mechanism, and is respectively retracted and far away from the pitch primary adjustment roller towards the center direction of the bending radius of the bent pipe through a radial retractable mechanism.

5. The multi-functional roll bending machine according to claim 4, wherein the primary front and rear adjusting telescopic mechanism comprises an adjusting base and a horizontal telescopic shaft movably arranged on the adjusting base in the front and rear directions, the front end of the horizontal telescopic shaft is provided with the pitch primary adjusting roller, and the horizontal telescopic shaft is adjusted by the front and rear adjusting screw rod to achieve front and rear extension.

6. The multi-functional roll bending machine according to claim 5, wherein the radial expansion mechanism comprises an oblique sliding chute disposed on the frame, the adjusting base disposed in the oblique sliding chute is moved, the adjusting base is slidably moved in the oblique sliding chute by a radial adjusting screw connected to the adjusting base, and the oblique sliding direction of the adjusting base is inclined toward the center of the bending radius of the bending pipe; the lifting direction of the lifting box body is obliquely arranged towards the center direction of the bending radius of the bent pipe.

7. The multi-functional bending roll of claim 4, further comprising a pitch fine adjustment member, wherein the pitch fine adjustment member comprises an up-down lifting member disposed on the frame, a front-back fine adjustment telescopic member connected to the up-down lifting member, and a pitch fine adjustment roller disposed at a front end of the front-back fine adjustment telescopic member, and the pitch fine adjustment roller is disposed above one side of the pitch primary and radius adjustment member.

8. The multi-functional roll bending machine according to claim 7, wherein the up-down lifting component comprises a lifting motor, a lifting reducer, a lifting screw rod and a vertically arranged guide girder, the fine adjustment front-back telescopic component is slidably arranged on the guide girder, the lifting motor is connected with the lifting reducer, the lifting reducer is connected with the lifting screw rod, and the lifting screw rod is connected with the fine adjustment front-back telescopic component and drives the fine adjustment front-back telescopic component to move up and down along the guide girder; the fine adjustment front and rear telescopic part comprises a cantilever beam arranged in the front and rear direction, a roller seat arranged on the cantilever beam in a sliding manner, an upper fine adjustment roller and a lower fine adjustment roller which are arranged on the roller seat according to the upper and lower positions, and a fine adjustment screw rod connected with the roller seat, wherein the roller seat realizes the front and rear movement through a fine adjustment speed reducer connected with the fine adjustment screw rod and a fine adjustment motor connected with the fine adjustment speed reducer.