阅读说明：本技术 多半径弯管机 (Multi-radius pipe bender ) 是由 华小辉 于 2019-09-27 设计创作，主要内容包括：本发明涉及一种多半径弯管机,具有安装于机架上的送料机构、辅弯、旋转盘和弯轮旋转切换装置；所述机架一侧上端安装有送料机构,另一侧下部安装有弯轮旋转切换装置；所述弯轮旋转切换装置的上方安装有转动安装在机架上的旋转盘；所述辅弯固定安装于送料机构的出料端,且正对旋转盘中心通孔位置设置。本发明适合具有不同折弯半径的弯管生产,在弯管生产过程中,根据折弯半径的不同,快速更换所需弯轮。(the invention relates to a multi-radius pipe bender, which is provided with a feeding mechanism, an auxiliary bending mechanism, a rotating disk and a bending wheel rotating and switching device, wherein the feeding mechanism, the auxiliary bending mechanism, the rotating disk and the bending wheel rotating and switching device are arranged on a rack; the upper end of one side of the rack is provided with a feeding mechanism, and the lower part of the other side of the rack is provided with a bending wheel rotating and switching device; a rotating disc rotatably mounted on the rack is mounted above the bent wheel rotating and switching device; the auxiliary bending is fixedly arranged at the discharge end of the feeding mechanism and is arranged right opposite to the central through hole of the rotating disc. The invention is suitable for the production of the bent pipes with different bending radiuses, and the required bending wheels are quickly replaced according to the different bending radiuses in the bent pipe production process.)

1. a multi-radius pipe bender is characterized in that: the device is provided with a feeding mechanism, an auxiliary bending mechanism, a rotating disc and a bending wheel rotating and switching device which are arranged on a rack; the upper end of one side of the rack is provided with a feeding mechanism, and the lower part of the other side of the rack is provided with a bending wheel rotating and switching device; a rotating disc rotatably mounted on the rack is mounted above the bent wheel rotating and switching device; the auxiliary bending is fixedly arranged at the discharge end of the feeding mechanism and is arranged right opposite to the central through hole of the rotating disc.

2. the multi-radius bender according to claim 1, wherein: the bending wheel rotation switching device is provided with a main shaft disc body, a main shaft, a planetary reducer, a servo motor and a clamping mechanism which are arranged on the bracket; the main shaft disc body is provided with a plurality of bending wheel stations; the upper end of the main shaft is connected with the main shaft disc body, and the lower end of the main shaft is sequentially connected with the planetary reducer and the servo motor; the clamping mechanism is correspondingly arranged below one of the bending wheel stations of the main shaft disc body; a main shaft bearing sleeve is sleeved on the main shaft; the axial section of the main shaft bearing sleeve is in an inverted T shape, and the lower end of the main shaft bearing sleeve is erected on the support.

3. The multi-radius bender according to claim 2, wherein: the clamping mechanism comprises a claw cylinder, a claw hand, a connecting handle and a connecting rod; the claw hand is connected in a notch of the circumferential surface of the claw barrel through a pin shaft; one end of the connecting rod is connected with the middle part of the inner side of the claw, and the other end of the connecting rod is connected with the upper end of the connecting handle; a claw linear guide rail is fixed on the bracket; a claw hand sliding block is arranged on the claw hand linear guide rail in a sliding manner; the lower end of the claw hand sliding block is connected with a piston rod of a claw hand lifting cylinder fixed on the bracket; the lower end of the connecting handle is connected with a piston rod end of a thin claw clamping cylinder fixed on a claw sliding block; and a lifting cylinder is arranged between the thin claw hand clamping cylinder and the claw hand lifting cylinder.

4. The multi-radius bender according to claim 2 or 3, wherein: the auxiliary bending device comprises a driving mechanism, an auxiliary bending main rotating shaft, an auxiliary bending mounting block and an auxiliary bending movable body lifting mechanism which are sequentially connected from top to bottom; the auxiliary bending movable body lifting mechanism comprises an auxiliary bending sliding sleeve, an auxiliary bending cylinder and an auxiliary bending movable body; the auxiliary bending sliding sleeve is fixed in the auxiliary bending mounting block, and an auxiliary bending inserting body is arranged in the auxiliary bending sliding sleeve in a sliding manner; the auxiliary bending cylinders are provided with two auxiliary bending cylinders and are respectively fixed on two sides of the auxiliary bending sliding sleeve, a piston rod of one auxiliary bending cylinder is connected with the auxiliary bending insertion body through a first auxiliary bending connecting rod, and the other auxiliary bending cylinder is connected with the auxiliary bending movable body through a second auxiliary bending connecting rod; the lower end of the auxiliary bending insertion body is an inclined plane and is in sliding connection with the inclined plane at the upper end of the auxiliary bending movable body.

5. The auxiliary bending device for the pipe bending machine according to claim 1, wherein: the lower end face of the auxiliary bent inserting body is provided with an inverted T-shaped or dovetail-shaped bulge; and the upper end surface of the auxiliary bending movable body is provided with a sliding groove matched with the bulge.

6. the multi-radius bender according to claim 2 or 3, wherein: the support comprises a supporting frame and a movable plate fixed on the supporting frame; the lower end of the movable plate is provided with a support sliding block; the support sliding block is arranged on a support guide rail arranged on the rack in a sliding mode.

7. the multi-radius bender according to claim 4, wherein: a bracket screw and a bracket screw supporting seat are arranged below the movable plate; the bracket screw rod supporting seat is respectively fixedly arranged on the movable plate and the rack; the support screw rod is connected with a support moving driving motor arranged on the rack.

8. The multi-radius bender according to claim 1, 2 or 3, wherein: the feeding mechanism comprises a feeding suspension and an upper machine head fixing frame for linking auxiliary bending; the feeding suspension is fixed with the rack, and one side of the feeding suspension is provided with a feeding clamp mechanism; the upper machine head fixing frame is in matched sliding connection with the feeding suspension through a vertical guide rail and a vertical guide groove; the auxiliary bending part is in sliding connection with the upper machine head fixing frame through the auxiliary bending sliding block and the auxiliary bending linear guide rail in a matched mode.

9. the multi-radius bender according to claim 8, wherein: the feeding clamp mechanism comprises a feeding adjusting screw rod, a clamp fixing plate, a guide plate, a fixed clamp and a movable clamp fixing plate; a screw rod and nut sleeve is fixed on the fixture fixing plate, guide plates are fixed on two sides of the lower end of the fixture fixing plate in a mirror image mode, and an oil cylinder fixing plate is connected between the two guide plates; the clamp comprises an oil cylinder fixing plate, a clamp connecting plate, a clamp oil cylinder, a clamp connecting plate, a movable clamping plate, a fixed clamping plate and a fixed clamping plate, wherein the oil cylinder fixing plate is arranged in parallel with the clamp fixing plate; the middle of the feeding adjusting screw rod penetrates through the screw rod nut sleeve, two ends of the feeding adjusting screw rod penetrate through the corresponding screw rod supporting seat, and one end of the feeding adjusting screw rod is connected with the driver; a row of notches for transversely passing through the pipe are formed in the clamping surfaces of the movable clamping plate and the fixed clamping plate from top to bottom; an extension guide frame is arranged below one end, close to the feeding suspension, of the upper machine head fixing frame; the extension guide frame is provided with a plurality of small holes for passing through the pipes.

10. A use method of a multi-radius pipe bender is characterized in that: the method is characterized in that a traditional single-bending-radius main wheel structure is converted into a multi-radius bending main wheel, and the method comprises the following specific steps:

s1 feeding: manually feeding the disc-shaped packaging tube;

s2 straightening: adopting conventional pipe straightening equipment to automatically straighten;

S3 feeding: the straightened pipe directly enters a feeding clamp mechanism, and the feeding is started by the feeding clamp mechanism;

s4 switching bend wheels: automatically switching the bending wheel with the required radius according to the set radius and the bending length, and adjusting the central position of the bending wheel and the central position of auxiliary bending;

S5 bending pipe: the auxiliary bending adopts an inclined slide block, the pressing position can be automatically adjusted, a certain pressing force is kept, and automatic bending is realized.

Technical Field

The invention relates to the technical field of mechanical manufacturing, in particular to a multi-radius pipe bender.

Background

the numerical control pipe bending machine is widely applied to the industrial fields of air conditioners (refrigeration and heating of refrigerators), automobiles, ships, aerospace and the like, the application of bent pipes in the fields of electric power construction, road and bridge construction, oil and gas transmission and the like is more and more extensive, straight (or disc-shaped) pipes are often required to be bent into circular arcs with certain radiuses so as to meet the use requirements, the pipe bending machine is divided into a left bending type pipe bending machine, a right bending type pipe bending machine and a left and right co-bending type pipe bending machine according to the difference of bending directions, the left and right co-bending type pipe bending machine is commonly used for the bending operation of complex pipelines, and the left and right co-.

the existing pipe bender generally uses a mould to make a pipe blank into a bent pipe in a matching way, and for forming the bent pipes with different bending diameters on the same pipe bender, the mould needs to be frequently replaced, and the operation is complicated; the manual pipe bending can realize multi-radius pipe bending, but the labor intensity of operators is high, the operation technical requirement is high, and the efficiency is low, so that a pipe bending machine with various bending radii is urgently needed.

disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a multi-radius pipe bender which realizes automatic die switching and is simple to operate.

The technical scheme for realizing the purpose of the invention is as follows: a multi-radius pipe bender is provided with a feeding mechanism, an auxiliary bending mechanism, a rotating disk and a bending wheel rotating and switching device, wherein the feeding mechanism, the auxiliary bending mechanism, the rotating disk and the bending wheel rotating and switching device are arranged on a rack; the upper end of one side of the rack is provided with a feeding mechanism, and the lower part of the other side of the rack is provided with a bending wheel rotating and switching device; a rotating disc rotatably mounted on the rack is mounted above the bent wheel rotating and switching device; the auxiliary bending is fixedly arranged at the discharge end of the feeding mechanism and is arranged right opposite to the central through hole of the rotating disc.

the bend wheel rotation switching device in the technical scheme is provided with a main shaft disc body, a main shaft, a planetary reducer, a servo motor and a clamping mechanism which are arranged on a support; the main shaft disc body is provided with a plurality of bending wheel stations; the upper end of the main shaft is connected with the main shaft disc body, and the lower end of the main shaft is sequentially connected with the planetary reducer and the servo motor; the clamping mechanism is correspondingly arranged below one of the bending wheel stations of the main shaft disc body; a main shaft bearing sleeve is sleeved on the main shaft; the axial section of the main shaft bearing sleeve is in an inverted T shape, and the lower end of the main shaft bearing sleeve is erected on the support.

according to the technical scheme, the clamping mechanism comprises a claw cylinder, a claw hand, a connecting handle and a connecting rod; the claw hand is connected in a notch of the circumferential surface of the claw barrel through a pin shaft; one end of the connecting rod is connected with the middle part of the inner side of the claw, and the other end of the connecting rod is connected with the upper end of the connecting handle; a claw linear guide rail is fixed on the bracket; a claw hand sliding block is arranged on the claw hand linear guide rail in a sliding manner; the lower end of the claw hand sliding block is connected with a piston rod of a claw hand lifting cylinder fixed on the bracket; the lower end of the connecting handle is connected with a piston rod end of a thin claw clamping cylinder fixed on a claw sliding block; and a lifting cylinder is arranged between the thin claw hand clamping cylinder and the claw hand lifting cylinder.

According to the technical scheme, the auxiliary bending device comprises a driving mechanism, an auxiliary bending main rotating shaft, an auxiliary bending mounting block and an auxiliary bending movable body lifting mechanism which are sequentially connected from top to bottom; the auxiliary bending movable body lifting mechanism comprises an auxiliary bending sliding sleeve, an auxiliary bending cylinder and an auxiliary bending movable body; the auxiliary bending sliding sleeve is fixed in the auxiliary bending mounting block, and an auxiliary bending inserting body is arranged in the auxiliary bending sliding sleeve in a sliding manner; the auxiliary bending cylinders are provided with two auxiliary bending cylinders and are respectively fixed on two sides of the auxiliary bending sliding sleeve, a piston rod of one auxiliary bending cylinder is connected with the auxiliary bending insertion body through a first auxiliary bending connecting rod, and the other auxiliary bending cylinder is connected with the auxiliary bending movable body through a second auxiliary bending connecting rod; the lower end of the auxiliary bending insertion body is an inclined plane and is in sliding connection with the inclined plane at the upper end of the auxiliary bending movable body.

According to the technical scheme, the lower end face of the auxiliary bent inserting body is provided with an inverted T-shaped or dovetail-shaped bulge; and the upper end surface of the auxiliary bending movable body is provided with a sliding groove matched with the bulge.

The bracket in the technical scheme comprises a supporting frame and a movable plate fixed on the supporting frame; the lower end of the movable plate is provided with a support sliding block; the support sliding block is arranged on a support guide rail arranged on the rack in a sliding mode.

according to the technical scheme, a support screw and a support screw supporting seat are arranged below the movable plate; the bracket screw rod supporting seat is respectively fixedly arranged on the movable plate and the rack; the support screw rod is connected with a support moving driving motor arranged on the rack.

The feeding mechanism comprises a feeding suspension and an upper machine head fixing frame for linking auxiliary bending; the feeding suspension is fixed with the rack, and one side of the feeding suspension is provided with a feeding clamp mechanism; the upper machine head fixing frame is in matched sliding connection with the feeding suspension through a vertical guide rail and a vertical guide groove; the auxiliary bending part is in sliding connection with the upper machine head fixing frame through the auxiliary bending sliding block and the auxiliary bending linear guide rail in a matched mode.

The feeding clamp mechanism in the technical scheme comprises a feeding adjusting screw rod, a clamp fixing plate, a guide plate, a fixed clamp and a movable clamp fixing plate; a screw rod and nut sleeve is fixed on the fixture fixing plate, guide plates are fixed on two sides of the lower end of the fixture fixing plate in a mirror image mode, and an oil cylinder fixing plate is connected between the two guide plates; the clamp comprises an oil cylinder fixing plate, a clamp connecting plate, a clamp oil cylinder, a clamp connecting plate, a movable clamping plate, a fixed clamping plate and a fixed clamping plate, wherein the oil cylinder fixing plate is arranged in parallel with the clamp fixing plate; the middle of the feeding adjusting screw rod penetrates through the screw rod nut sleeve, two ends of the feeding adjusting screw rod penetrate through the corresponding screw rod supporting seat, and one end of the feeding adjusting screw rod is connected with the driver; a row of notches for transversely passing through the pipe are formed in the clamping surfaces of the movable clamping plate and the fixed clamping plate from top to bottom; an extension guide frame is arranged below one end, close to the feeding suspension, of the upper machine head fixing frame; the extension guide frame is provided with a plurality of small holes for passing through the pipes.

A method for using a multi-radius pipe bender converts a traditional single-bending-radius main wheel structure into a multi-radius bending main wheel, and comprises the following specific steps:

s1 feeding: manually feeding the disc-shaped packaging tube;

S2 straightening: adopting conventional pipe straightening equipment to automatically straighten;

S3 feeding: the straightened pipe directly enters a feeding clamp mechanism, and the feeding is started by the feeding clamp mechanism;

s4 switching bend wheels: automatically switching the bending wheel with the required radius according to the set radius and the bending length, and adjusting the central position of the bending wheel and the central position of auxiliary bending;

S5 bending pipe: the auxiliary bending adopts an inclined slide block, the pressing position can be automatically adjusted, a certain pressing force is kept, and automatic bending is realized.

After the technical scheme is adopted, the invention has the following positive effects:

(1) The automatic pipe bending machine is suitable for the production of bent pipes with different bending radiuses, and can quickly and automatically replace required bending wheels according to the different bending radiuses in the bent pipe production process, and the purpose of simultaneously bending one or more pipes can be realized at one time;

(2) The main shaft disc body can be provided with the bending wheels with various radiuses required by bent pipe production, the grooved wheels are automatically replaced according to a set bending program, the automation degree is high, and the production efficiency of the multi-radius bent pipe is improved;

(3) the invention has reliable structure and simple principle, and reduces the manufacturing cost of the multi-radius pipe bender;

(4) the bracket can be matched with the bracket guide rail through the bracket sliding block to realize the horizontal movement of the bracket;

(5) The invention changes the traditional single-bending-radius main wheel structure into the multi-radius bending main wheel, can realize automatic replacement according to the technological requirements of products, can complete the molding requirements of multi-radius products at one time, and has simple operation; the disc-shaped packaging pipe is manually fed and converted into equipment for automatic straightening, the straightened pipe directly enters the clamp, and the feeding and bending are started by the feeding clamp; automatically switching a bending main wheel according to the set radius and the bending length, and adjusting the central position of the main wheel and the auxiliary bending central position; the auxiliary bending adopts an inclined slide block, the pressing position can be automatically adjusted, a certain pressing force is kept, and automatic bending is realized.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic perspective view of a portion of the present invention;

FIG. 4 is a schematic structural diagram of a bending wheel rotation switching device according to the present invention;

FIG. 5 is a schematic perspective view of a first direction of the apparatus for switching the rotation of a bending wheel according to the present invention;

FIG. 6 is a schematic perspective view of a second direction of the apparatus for switching the rotation of a bending wheel according to the present invention;

FIG. 7 is a schematic perspective view of the clamping mechanism of the present invention;

FIG. 8 is a schematic perspective view of another embodiment of the clamping mechanism of the present invention;

FIG. 9 is a schematic perspective view of an auxiliary bend of the present invention;

FIG. 10 is a perspective cross-sectional view of the secondary bend of the present invention;

FIG. 11 is a schematic view of the relationship between an auxiliary bend insertion body and an auxiliary bend movable body in the auxiliary bend according to the present invention;

FIG. 12 is an enlarged schematic view of the feed clip of the present invention;

Fig. 13 is a schematic perspective view of a third direction of the bending wheel rotation switching device of the present invention.

Detailed Description

referring to fig. 1 to 13, the present invention has a feeding mechanism 22 mounted on a frame 21, an auxiliary bend 23, a rotating disc 24 and a bend wheel rotation switching device; the upper end of one side of the frame 21 is provided with a feeding mechanism 22, and the lower part of the other side is provided with a bending wheel rotating and switching device; a rotating disk 24 rotatably mounted on the frame 21 is mounted above the bending wheel rotating and switching device; the auxiliary bend 23 is fixedly arranged at the discharge end of the feeding mechanism 22 and is arranged opposite to the central through hole of the rotating disc 24.

The bend wheel rotation switching device is provided with a main shaft disc body 2, a main shaft 3, a planetary reducer 4, a servo motor 5 and a clamping mechanism which are arranged on a bracket 1; the main shaft disc body 2 is provided with a plurality of bending wheel stations; the upper end of the main shaft 3 is connected with the main shaft disc body 2, and the lower end of the main shaft is sequentially connected with the planetary reducer 4 and the servo motor 5; the three-jaw clamping mechanism is correspondingly arranged below one of the bending wheel stations of the main shaft disc body 2.

the clamping mechanism comprises a claw cylinder 6, a claw 7, a connecting handle 8 and a connecting rod 9; the claw 7 is connected in the notch of the circumferential surface of the claw cylinder 6 through a pin shaft; one end of a connecting rod 9 is connected with the middle part of the inner side of the claw 7, and the other end is connected with the upper end of the connecting handle 8; a claw linear guide rail 10 is fixed on the bracket 1; a claw hand sliding block 11 is arranged on the claw hand linear guide rail 10 in a sliding manner; the lower end of the claw hand sliding block 11 is connected with a piston rod of a claw hand lifting cylinder 12 fixed on the bracket 1; the lower end of the connecting handle 8 is connected with the piston rod end of a thin claw clamping cylinder 13 fixed on a claw slide block 11; and a lifting cylinder 47 is arranged between the thin claw clamping cylinder 13 and the claw lifting cylinder 12.

The auxiliary bend 23 comprises a driving mechanism, an auxiliary bend main rotating shaft 101, an auxiliary bend mounting block 102 and an auxiliary bend movable body lifting mechanism which are sequentially connected from top to bottom; the auxiliary bending movable body lifting mechanism comprises an auxiliary bending sliding sleeve 103, an auxiliary bending cylinder 104 and an auxiliary bending movable body 105; the auxiliary bending sliding sleeve 103 is fixed in the auxiliary bending mounting block 102, and an auxiliary bending insertion body 106 is arranged in the auxiliary bending sliding sleeve 103 in a sliding manner; the two auxiliary bending cylinders 104 are respectively fixed on two sides of the auxiliary bending sliding sleeve 103, a piston rod of one auxiliary bending cylinder 104 is connected with the auxiliary bending insertion body 106 through a first auxiliary bending connecting rod 111, and the other auxiliary bending cylinder 104 is connected with the auxiliary bending movable body 105 through a second auxiliary bending connecting rod 112; the lower end of the auxiliary bending insertion body 106 is an inclined surface and is connected with the inclined surface at the upper end of the auxiliary bending movable body 105 in a sliding manner. The driving mechanism comprises an auxiliary bending motor 107 and an auxiliary bending speed reducer 108 connected with the auxiliary bending motor 107.

The lower end surface of the auxiliary bent inserting body 106 is provided with an inverted T-shaped or dovetail-shaped bulge 109; the upper end surface of the auxiliary bending movable body 105 is provided with a sliding groove 110 matched with the protrusion 109.

The rotary table gear 25 is fixedly mounted below the rotary table 24, the rotary table 24 can realize that the bent and formed pipe rotates along with the rotary table 24, so that the bent part is prevented from deforming in the long-distance bending process, and the later shaping time is shortened. .

The support 1 comprises a support frame 14 and a movable plate 15 fixed on the support frame 14; the lower end of the movable plate 15 is provided with a bracket sliding block 16; the bracket slide block 16 is slidably disposed on a bracket guide rail 17 mounted on the frame. A bracket screw 18 and a bracket screw supporting seat 19 are arranged below the movable plate; the bracket screw rod supporting seat 19 is respectively installed and fixed on the movable plate 15 and the frame; the carriage screw 18 is connected to a carriage movement drive motor mounted on the frame.

A main shaft bearing sleeve 20 is sleeved on the main shaft 3; the axial section of the main shaft bearing sleeve 20 is in an inverted T shape, and the lower end of the main shaft bearing sleeve 20 is erected on the bracket 1.

the feeding mechanism 22 comprises a feeding suspension 26 and an upper machine head fixing frame 27 for linking the auxiliary bend 23; the feeding suspension 26 is fixed with the frame 1, and one side of the feeding suspension 26 is provided with a feeding clamp mechanism; the upper machine head fixing frame 27 is in sliding connection with the feeding suspension 26 through the vertical guide rail 28 and the vertical guide groove 29 in a matching manner; the auxiliary bend 23 is in sliding connection with the upper head fixing frame 27 through the auxiliary bend sliding block 30 and the auxiliary bend linear guide rail 31.

The feeding clamp mechanism comprises a feeding adjusting screw rod 32, a clamp fixing plate 33, a guide plate 37, a fixed clamp 35 and a movable clamp fixing plate 36; a screw rod nut sleeve 34 is fixed on the clamp fixing plate 33, guide plates 37 are fixed on two sides of the lower end of the clamp fixing plate 33 in a mirror image mode, and an oil cylinder fixing plate 38 is connected between the two guide plates 37; the oil cylinder fixing plate 38 and the clamp fixing plate 33 are arranged in parallel, the outer side of the oil cylinder fixing plate 38 is fixedly connected with a clamp oil cylinder 39, the inner side of the oil cylinder fixing plate 38 is connected with a movable clamping plate 41 through a clamp connecting plate 40, and a fixed clamping plate 42 matched with the movable clamping plate 41 is fixed on one side of the clamp fixing plate 33 corresponding to the oil cylinder fixing plate 38; the middle of the feeding adjusting screw 32 penetrates through the screw nut sleeve 34, two ends of the feeding adjusting screw penetrate through the corresponding screw support seat 43, and one end of the feeding adjusting screw is connected with the driver; a row of notches 44 for transversely passing the pipes are formed in the clamping surfaces of the movable clamping plate 41 and the fixed clamping plate 42 from top to bottom; an extension guide frame 45 is arranged below one end of the upper head fixing frame 27 close to the feeding suspension 26; the extending guide frame 45 is provided with a plurality of small holes 46 for passing through the pipes.

And a clamping groove is formed in the clamping position of the lower end of the bending wheel arranged on each bending wheel station, so that the clamping mechanism can conveniently clamp the bending wheel.

a method for using a multi-radius pipe bender converts a traditional single-bending-radius main wheel structure into a multi-radius bending main wheel, and comprises the following specific steps:

S1 feeding: manually feeding the disc-shaped packaging tube;

S2 straightening: adopting conventional pipe straightening equipment to automatically straighten;

s3 feeding: the straightened pipe directly enters a feeding clamp mechanism, and the feeding is started by the feeding clamp mechanism; the method specifically comprises the following steps: one end of the straightened pipe extends into the guide plate 37, the clamp oil cylinder 39 acts to clamp, so that the clamping surfaces of the movable clamping plate 41 and the fixed clamping plate 42 clamp the pipe, and then the feeding adjusting screw rod 32 is driven by the driver to realize that the clamp fixing plate 33 horizontally moves along the side direction of the feeding suspension 26; after the clamp is moved to a position close to the upper machine head fixing frame 27, the clamp oil cylinder 39 is released to reset, and the clamp fixing plate 33 returns to a position far away from the upper machine head fixing frame 27 to reciprocate circularly;

s4 switching bend wheels: automatically switching the bending wheel with the required radius according to the set radius and the bending length, and adjusting the central position of the bending wheel and the central position of the auxiliary bend 23; the method specifically comprises the following steps: after a claw lifting cylinder 12 in the clamping mechanism ascends and contacts with a bent wheel on a bent wheel station, a thin claw clamping cylinder 13 acts to tighten a claw 7 to realize bent wheel clamping action, and then the claw lifting cylinder ascends again to eject the clamped bent wheel for standby; the adjustment of the central position of the bending wheel can be realized through the matching of the bracket sliding block 16 and the bracket guide rail 17 and a corresponding driving motor; the adjustment of the central position of the auxiliary bend 23 can be realized by the cooperation of the auxiliary bend slider 30 and the auxiliary bend linear guide 31, and the corresponding driving motor. .

s5 bending pipe: the auxiliary bending adopts an inclined slide block, the pressing position can be automatically adjusted, a certain pressing force is kept, and automatic bending is realized. The method specifically comprises the following steps: under the action of one auxiliary bending cylinder 104, the auxiliary bending plug 106 can move up and down, and under the action of the other auxiliary bending cylinder 104, the auxiliary bending movable body 105 can slide along the sliding groove 110 on the inclined surface to realize the movement in the horizontal direction, so that the pressing position can be automatically adjusted, a certain pressing force is kept, and the auxiliary bending movable body 105 can clamp the bent pipe all the time no matter how large the bending radius is.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.