CN215697078U

CN215697078U - Roll bending machine with movable wheel shaft capable of being automatically lifted and positioned axially

Info

Publication number: CN215697078U
Application number: CN202121789609.3U
Authority: CN
Inventors: 张青站
Original assignee: Shandong Saipu Cnc Equipment Co ltd
Current assignee: Shandong Saipu Cnc Equipment Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-01
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a roll bending machine with a movable wheel shaft capable of being automatically lifted and positioned in the axial direction, which comprises a roll bending machine shell, wherein a transmission mechanism is arranged on the inner side of the roll bending machine shell, and the left end of the top of the roll bending machine shell is fixedly connected with a second mounting frame. By adopting the structure, the transmission mechanism is arranged, the transmission assembly in the transmission mechanism can drive the first rotating shaft to rotate at the inner side of the first bearing, the first rotating shaft can drive the second rotating shaft to rotate through the meshing assembly, the two second rotating shafts are respectively provided with the driven gears and are meshed and connected with the driving gear on the first rotating shaft, so that the two second rotating shafts can rotate at opposite and same speed under the driving of the first rotating shaft, the second rotating shafts can respectively drive the fixed wheel shaft bodies to rotate through the toothed chain assemblies, the two fixed wheel shaft bodies can rotate at opposite and same speed, and only one transmission motor is used for driving, so that the cost is saved, and errors can not occur.

Description

Roll bending machine with movable wheel shaft capable of being automatically lifted and positioned axially

Technical Field

The utility model belongs to the field of roll bending machines, and particularly relates to a roll bending machine with a movable wheel shaft capable of being automatically lifted and positioned in the axial direction.

Background

The roll bending machine is a metal section cold bending device, and is a bending mechanical device commonly used for aluminum alloy sections. Such as angle steel, channel steel, I-shaped steel, metal square tubes, metal round tubes and various metal special-shaped profiles. Workable shapes are circular, arcuate, elliptical, parabolic, etc. The cold bending forming machine can be divided into a vertical type and a horizontal type, is simple and convenient to operate, has low cost, and is suitable for cold bending forming of medium and small section bars.

The roll bending machine in the prior art is inconvenient for adjusting the position of the movable wheel shaft, so that a metal section cannot be cold-bent into a required shape, two fixed wheel shafts need to be driven to rotate in the prior art, two motors are inconvenient for achieving synchronization, and faults can occur.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems mentioned in the background technology, the utility model aims to provide a roll bending machine with a movable wheel shaft capable of being automatically lifted and positioned in the axial direction, so as to solve the problems that the movable wheel shaft is inconvenient to adjust and two fixed wheel shafts are not synchronous.

The technical purpose of the utility model is realized by the following technical scheme:

a roll bending machine with a movable wheel shaft capable of being automatically lifted and positioned axially comprises a roll bending machine shell, wherein a transmission mechanism is arranged on the inner side of the roll bending machine shell, a second mounting frame is fixedly connected to the left end of the top of the roll bending machine shell, supporting blocks are fixedly connected to the two sides of the second mounting frame, the second mounting frame is fixedly connected to the right end of the top of the roll bending machine shell, a movable assembly is slidably connected to the inner side of the second mounting frame, a supporting plate is fixedly connected to the upper end of the inner right side of the roll bending machine shell, an electric telescopic rod is fixedly mounted at the top of the supporting plate and fixedly connected with the movable assembly, a movable wheel shaft body is arranged on the inner side of the movable assembly, a sliding plate is slidably connected to the inner side of the second mounting frame, a driving motor is fixedly mounted on the left side of the sliding plate and is in transmission connection with the movable wheel shaft body, the rolling wheel device comprises a rolling wheel machine shell and is characterized in that a first mounting frame is fixedly connected to the right end of the top of the rolling wheel machine shell, supporting structures are fixedly connected to the two sides of the first mounting frame, a fixed wheel shaft body is arranged on the inner side of each supporting structure, a transmission mechanism is in transmission connection with the fixed wheel shaft body, a first roll bending wheel is fixedly connected to the surface of the right end of a movable wheel shaft body, and a second roll bending wheel is fixedly connected to the surface of the right end of the fixed wheel shaft body.

By adopting the technical scheme, through arranging the transmission mechanism, the transmission assembly in the transmission mechanism can drive the first rotating shaft to rotate on the inner side of the first bearing, the first rotating shaft can drive the second rotating shaft to rotate through the meshing assembly, both the second rotating shafts are provided with the driven gears and are meshed and connected with the driving gear on the first rotating shaft, so that the two second rotating shafts can rotate at opposite and same speed under the driving of the first rotating shaft, the second rotating shafts can respectively drive the fixed wheel shaft bodies to rotate through the toothed chain assembly, so that the two fixed wheel shaft bodies can rotate at opposite and same speed, and only one transmission motor is used for driving, the cost is saved, no error occurs, through arranging the electric telescopic rod, the electric telescopic rod can drive the movable assembly to move on the inner side of the first mounting frame, so that the height position of the movable wheel shaft body can be adjusted, the movable wheel shaft body can drive the sliding plate to slide on the inner side of the second mounting frame, so that the driving motor arranged on the left side of the sliding plate can drive the movable wheel shaft body to rotate in normal operation, and the normal operation of the movable wheel shaft body cannot be influenced while the height of the movable wheel shaft body is adjusted.

Further, as a preferred technical scheme, the transmission mechanism comprises a transmission assembly, the bottom of the inner side of the roll bending machine shell is provided with the transmission assembly, the two ends of the inner side of the roll bending machine shell are respectively and fixedly provided with a first bearing and a second bearing, a first rotating shaft is rotatably connected between the first bearings and is in transmission connection with the first rotating shaft, a meshing assembly is arranged on the surface of the first rotating shaft, a second bearing is arranged right above the first bearings and is rotatably connected between the second bearings, the first rotating shaft is in transmission connection with the second rotating shaft through the meshing assembly, a toothed chain assembly is arranged on the surface of the second rotating shaft, and the second rotating shaft is in transmission connection with the fixed wheel shaft body through the toothed chain assembly.

Through adopting above-mentioned technical scheme, through setting up drive mechanism, drive assembly among the drive mechanism can drive first pivot and rotate at the inboard of first bearing, first pivot can drive the rotation of second pivot through the meshing subassembly, thereby make two second pivots can carry out opposite and with fast rotation under the drive of first pivot, the second pivot can drive the fixed wheel axle body respectively through the chain gear subassembly and rotate, thereby can realize that two fixed wheel axle bodies carry out opposite and with fast rotation.

Further, as a preferred technical scheme, the transmission assembly comprises a transmission motor, an output end of the transmission motor is fixedly connected with a transmission shaft, a belt is sleeved on the surface of the transmission shaft, a transmission disc is fixedly connected to the surface of the first bearing, and the transmission shaft is in transmission connection with the transmission disc through the belt.

Through adopting above-mentioned technical scheme, through setting up transmission assembly, transmission motor cooperation transmission shaft and belt among the transmission assembly can drive the driving disc and rotate to can drive first pivot and rotate.

Further, as preferred technical scheme, the meshing subassembly includes driving gear and driven gear, the fixed surface of first pivot is connected with the driving gear, the fixed surface of second pivot is connected with driven gear, the driving gear is connected with driven gear meshing.

Through adopting above-mentioned technical scheme, through setting up the meshing subassembly, first pivot can drive the driving gear and rotate, and the driving gear is connected with driven gear meshing to can make and rotate with driven gear fixed connection's second pivot.

Further, as a preferred technical scheme, a group of second rotating shafts are arranged at the upper end of the inner side of the roll bending machine shell, and driven gears are fixedly connected to the surfaces of the second rotating shafts.

Through adopting above-mentioned technical scheme, through setting up two second pivots, the surface of two second pivots all sets up driven gear to can carry out the rotation with fast in the drive of a driving gear.

Further, as a preferred technical scheme, the gear chain assembly comprises a first gear, a first gear is fixedly connected to the surface of the second rotating shaft, a second gear is fixedly connected to the surface of the fixed axle body, a chain is arranged on the outer sides of the first gear and the second gear, and the first gear and the second gear are both in meshed connection with the chain.

Through adopting above-mentioned technical scheme, through setting up the chain-toothed subassembly, first gear rotates under the drive of second pivot, and the cooperation chain can drive and rotate with second gear fixedly connected with fixed wheel axle body.

Further, as a preferred technical scheme, the supporting structure comprises a fixed block, a round hole is formed in the inner side of the fixed block, and the fixed wheel shaft body is rotatably connected to the inner side of the round hole.

Through adopting above-mentioned technical scheme, through setting up bearing structure, can play the effect of support to fixed wheel axle body.

Further, as preferred technical scheme, the movable assembly includes the movable block, the both sides of movable block all are provided with the fixed plate, the surface of fixed plate is provided with set screw, the fixed plate passes through set screw fixed mounting in the side of movable block.

Through adopting above-mentioned technical scheme, through setting up movable assembly, can cooperate electronic telescopic link to adjust the height of moving-axle body, through setting up the fixed plate, can play the effect of direction to the movable block.

Further, as preferred technical scheme, the mounting hole has all been seted up to the side of movable block and fixed plate, the movable wheel axle body rotates to be connected in the inboard of mounting hole.

Through adopting above-mentioned technical scheme, through setting up the mounting hole, the moving axle body of being convenient for rotates.

Further, as a preferred technical scheme, a second opening is formed in the middle of the top of the roll bending machine shell, and a first opening is formed in the right end of the top of the roll bending machine shell.

Through adopting above-mentioned technical scheme, through setting up first opening, the electric telescopic handle of being convenient for is connected with movable subassembly, through setting up the second opening, and the chain of being convenient for is connected with the meshing of second gear.

In summary, the utility model mainly has the following beneficial effects:

firstly, through the arrangement of the transmission mechanism, a transmission assembly in the transmission mechanism can drive a first rotating shaft to rotate on the inner side of a first bearing, the first rotating shaft can drive a second rotating shaft to rotate through an engagement assembly, both the two second rotating shafts are provided with driven gears and are in engagement connection with driving gears on the first rotating shaft, so that the two second rotating shafts can rotate at opposite and same speed under the driving of the first rotating shaft, the second rotating shafts can respectively drive fixed wheel shaft bodies to rotate through a toothed chain assembly, so that the two fixed wheel shaft bodies can rotate at opposite and same speed, and only one transmission motor is used for driving, the cost is saved, and errors cannot occur;

the second, through setting up electric telescopic handle, electric telescopic handle is flexible can drive the movable part and remove in the inboard of first mounting bracket to can adjust the high position of movable shaft body, the movable shaft body can drive the sliding plate and slide in the inboard of second mounting bracket, thereby make the driving motor that the sliding plate left side set up can drive the movable shaft body and rotate by normal operating, when highly adjusting the movable shaft body, still can not influence the normal operating of movable shaft body.

Drawings

FIG. 1 is a perspective view of the present invention;

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

figure 3 is a side view of the movable assembly of the present invention.

Reference numerals: 1. a roll bending machine housing, 2, a transmission mechanism, 21, a transmission component, 211, a transmission motor, 212, a transmission shaft, 213, a belt, 214, a transmission disc, 22, a first rotating shaft, 23, a second rotating shaft, 24, an engagement component, 241, a driving gear, 242, a driven gear, 25, a first bearing, 26, a second bearing, 27, a toothed chain component, 271, a first gear, 272, a chain, 273, a second gear, 3, a support plate, 4, an electric telescopic rod, 5, a first mounting frame, 6, a movable component, 61, a movable block, 62, a fixed plate, 63, a positioning screw, 64, a mounting hole, 7, a fixed wheel shaft body, 8, a support block, 9, a support structure, 91, a fixed block, 92, a round hole, 10, a second mounting frame, 11, a movable wheel shaft body, 12, a first roll bending wheel, 13, a second roll bending wheel, 14, a first opening, 15, a second opening, 16, a sliding plate, 17. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the bending roll machine with the movable wheel shaft capable of axially and automatically lifting and positioning according to the embodiment includes a bending roll machine housing 1, a transmission mechanism 2 is disposed inside the bending roll machine housing 1, a second mounting frame 10 is fixedly connected to the left end of the top of the bending roll machine housing 1, supporting blocks 8 are fixedly connected to both sides of the second mounting frame 10, the second mounting frame 10 is fixedly connected to the right end of the top of the bending roll machine housing 1, a movable assembly 6 is slidably connected to the inside of the second mounting frame 10, a supporting plate 3 is fixedly connected to the upper end of the right side inside of the bending roll machine housing 1, an electric telescopic rod 4 is fixedly mounted on the top of the supporting plate 3, the electric telescopic rod 4 is fixedly connected to the movable assembly 6, a movable wheel shaft body 11 is disposed inside the movable assembly 6, a sliding plate 16 is slidably connected to the inside of the second mounting frame 10, and a driving motor 17 is fixedly mounted on the left side of the sliding plate 16, the driving motor 17 is in transmission connection with the rotating axle body 11, the right end of the top of the roller housing 1 is fixedly connected with a first mounting frame 5, both sides of the first mounting frame 5 are fixedly connected with supporting structures 9, the inner side of the supporting structure 9 is provided with a fixed axle body 7, the transmission mechanism 2 is in transmission connection with the fixed axle body 7, the right end surface of the rotating axle body 11 is fixedly connected with a first bending roller 12, the right end surface of the fixed axle body 7 is fixedly connected with a second bending roller 13, through the arrangement of the transmission mechanism 2, the transmission assembly 21 in the transmission mechanism 2 can drive the first rotating shaft 22 to rotate on the inner side of the first bearing 25, the first rotating shaft 22 can drive the second rotating shafts 23 to rotate through the meshing assembly 24, the two second rotating shafts 23 are both provided with driven gears 242 and are in meshing connection with the driving gear 241 on the first rotating shaft 22, so that the two second rotating shafts 23 can rotate at opposite and same speed under the drive of the first rotating shaft 22, second pivot 23 can drive fixed shaft body 7 respectively through toothed chain subassembly 27 and rotate, thereby can realize that two fixed shaft bodies 7 carry out opposite and with fast rotation, and only by the drive of a driving motor 211, the cost is saved, and can not appear the error, through setting up electric telescopic handle 4, electric telescopic handle 4 stretches out and draws back can drive movable subassembly 6 and remove in the inboard of first mounting bracket 5, thereby can adjust the high position of movable shaft body 11, movable shaft body 11 can drive sliding plate 16 and slide in the inboard of second mounting bracket 10, thereby make driving motor 17 that sliding plate 16 left side set up can drive movable shaft body 11 and rotate by normal operating, when highly adjusting movable shaft body 11, still can not influence the normal operating of movable shaft body 11.

Example 2

Referring to fig. 2, on the basis of embodiment 1, in order to achieve the purpose of driving the fixed axle body 7 to rotate, the present embodiment has an innovative design on the transmission mechanism 2, specifically, the transmission mechanism 2 includes a transmission assembly 21, the transmission assembly 21 is disposed at the bottom of the inner side of the roll bending machine housing 1, first bearings 25 are fixedly mounted at both ends of the inner side of the roll bending machine housing 1, a first axle 22 is rotatably connected between the two first bearings 25, the transmission assembly 21 is in transmission connection with the first axle 22, an engaging assembly 24 is disposed on the surface of the first axle 22, a second bearing 26 is disposed directly above the first bearing 25, a second axle 23 is rotatably connected between the two second bearings 26, the first axle 22 is in transmission connection with the second axle 23 through the engaging assembly 24, a toothed chain assembly 27 is disposed on the surface of the second axle 23, the second axle 23 is in transmission connection with the fixed axle body 7 through the toothed chain assembly 27, through setting up drive mechanism 2, drive assembly 21 among drive mechanism 2 can drive first pivot 22 and rotate at the inboard of first bearing 25, first pivot 22 can drive second pivot 23 through meshing subassembly 24 and rotate, thereby make two second pivots 23 can carry out opposite and with fast rotation under the drive of first pivot 22, second pivot 23 can drive fixed wheel axle body 7 respectively through toothed chain subassembly 27 and rotate, thereby can realize that two fixed wheel axle bodies 7 carry out opposite and with fast rotation.

Referring to fig. 2, in order to reach the purpose of driving the rotation of the first rotating shaft 22, the transmission assembly 21 of the embodiment includes a transmission motor 211, an output end of the transmission motor 211 is fixedly connected with a transmission shaft 212, a belt 213 is sleeved on the surface of the transmission shaft 212, a transmission disc 214 is fixedly connected to the surface of the first bearing 25, the transmission shaft 212 is in transmission connection with the transmission disc 214 through the belt 213, through setting the transmission assembly 21, the transmission motor 211 in the transmission assembly 21 cooperates with the transmission shaft 212 and the belt 213 to drive the transmission disc 214 to rotate, thereby driving the first rotating shaft 22 to rotate.

Referring to fig. 2, in order to achieve the purpose of driving the second rotating shaft 23 to rotate, the engaging assembly 24 of the present embodiment includes a driving gear 241 and a driven gear 242, the driving gear 241 is fixedly connected to the surface of the first rotating shaft 22, the driven gear 242 is fixedly connected to the surface of the second rotating shaft 23, the driving gear 241 is engaged with the driven gear 242, by providing the engaging assembly 24, the first rotating shaft 22 can drive the driving gear 241 to rotate, and the driving gear 241 is engaged with the driven gear 242, so that the second rotating shaft 23 fixedly connected to the driven gear 242 can rotate.

Referring to fig. 2, in order to achieve the purpose that the two second rotating shafts 23 rotate at the same speed, a set of second rotating shafts 23 is disposed at the upper end of the inner side of the roll bending machine housing 1 according to the embodiment, driven gears 242 are fixedly connected to the surfaces of the second rotating shafts 23, and by disposing the two second rotating shafts 23, the driven gears 242 are disposed on the surfaces of the two second rotating shafts 23, so that the two second rotating shafts 23 can rotate at the same speed under the driving of one driving gear 241.

Referring to fig. 2, in order to achieve the purpose of driving the fixed axle body 7 to rotate, the gear chain assembly 27 of the present embodiment includes a first gear 271, a first gear 271 is fixedly connected to the surface of the second rotating shaft 23, a second gear 273 is fixedly connected to the surface of the fixed axle body 7, a chain 272 is disposed on the outer sides of the first gear 271 and the second gear 273, the first gear 271 and the second gear 273 are both meshed with the chain 272, by providing the gear chain assembly 27, the first gear 271 is driven by the second rotating shaft 23 to rotate, and the fixed axle body 7 is fixedly connected to the second gear 273 and can be driven by the matching chain 272 to rotate.

Example 3

Referring to fig. 2, on the basis of embodiment 2, in order to achieve the purpose of facilitating operation, the roll bending machine housing 1 of the present embodiment is innovatively designed, specifically, a second opening 15 is formed in the middle of the top of the roll bending machine housing 1, a first opening 14 is formed at the right end of the top of the roll bending machine housing 1, by providing the first opening 14, the electric telescopic rod 4 is conveniently connected with the movable assembly 6, and by providing the second opening 15, the chain 272 is conveniently meshed with the second gear 273.

Referring to fig. 2, in order to achieve the purpose of supporting the fixed axle body 7, the supporting structure 9 of this embodiment includes a fixed block 91, a circular hole 92 is formed in the inner side of the fixed block 91, the fixed axle body 7 is rotatably connected to the inner side of the circular hole 92, and the supporting structure 9 is arranged to support the fixed axle body 7.

Referring to fig. 1-3, in order to achieve the purpose of movably adjusting the height of the movable wheel axle body 11, the movable assembly 6 of the present embodiment includes a movable block 61, two sides of the movable block 61 are both provided with a fixed plate 62, a surface of the fixed plate 62 is provided with a set screw 63, the fixed plate 62 is fixedly mounted on a side surface of the movable block 61 through the set screw 63, by setting the movable assembly 6, the movable assembly can cooperate with the electric telescopic rod 4 to adjust the height of the movable wheel axle body 11, and by setting the fixed plate 62, the movable block 61 can be guided.

Referring to fig. 3, in order to achieve the purpose of not affecting the rotation of the movable axle body 11, the side surfaces of the movable block 61 and the fixed plate 62 are both provided with mounting holes 64, the movable axle body 11 is rotatably connected to the inner side of the mounting holes 64, and the movable axle body 11 is convenient to rotate by arranging the mounting holes 64.

The use principle and the advantages are as follows: by arranging the transmission mechanism 2, the transmission assembly 21 in the transmission mechanism 2 can drive the first rotating shaft 22 to rotate at the inner side of the first bearing 25, the first rotating shaft 22 can drive the second rotating shafts 23 to rotate through the meshing assembly 24, both the second rotating shafts 23 are provided with the driven gears 242 and are meshed with the driving gears 241 on the first rotating shaft 22, so that the two second rotating shafts 23 can rotate at opposite and same speed under the driving of the first rotating shaft 22, the second rotating shafts 23 can respectively drive the fixed wheel shaft bodies 7 to rotate through the toothed chain assemblies 27, so that the two fixed wheel shaft bodies 7 can rotate at opposite and same speed, and only one transmission motor 211 is used for driving, the cost is saved, no error occurs, by arranging the electric telescopic rod 4, the electric telescopic rod 4 can drive the movable assembly 6 to move at the inner side of the first telescopic rod mounting rack 5, thereby can adjust the high position of movable axle body 11, movable axle body 11 can drive sliding plate 16 and slide in the inboard of second mounting bracket 10 to make the driving motor 17 that sliding plate 16 left side set up can rotate by normal operating drive movable axle body 11, when highly adjusting movable axle body 11, still can not influence the normal operating of movable axle body 11.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a but moving axle axial automatic rising location's bending roll which characterized in that: the bending machine comprises a roll bending machine shell (1), a transmission mechanism (2) is arranged on the inner side of the roll bending machine shell (1), a second mounting frame (10) is fixedly connected to the left end of the top of the roll bending machine shell (1), supporting blocks (8) are fixedly connected to the two sides of the second mounting frame (10), the second mounting frame (10) is fixedly connected to the right end of the top of the roll bending machine shell (1), a movable assembly (6) is slidably connected to the inner side of the second mounting frame (10), a supporting plate (3) is fixedly connected to the upper end of the inner right side of the roll bending machine shell (1), an electric telescopic rod (4) is fixedly mounted at the top of the supporting plate (3), the electric telescopic rod (4) is fixedly connected with the movable assembly (6), a movable wheel shaft body (11) is arranged on the inner side of the movable assembly (6), and a sliding plate (16) is slidably connected to the inner side of the second mounting frame (10), the left side fixed mounting of sliding plate (16) has driving motor (17), driving motor (17) and moving axle body (11) transmission are connected, the first mounting bracket (5) of top right-hand member fixedly connected with of roll bending machine shell (1), the equal fixedly connected with bearing structure (9) in both sides of first mounting bracket (5), the inboard of bearing structure (9) is provided with fixed wheel axle body (7), drive mechanism (2) and fixed wheel axle body (7) transmission are connected, the right-hand member fixed surface of moving axle body (11) is connected with first round bend wheel (12), the right-hand member fixed surface of fixed wheel axle body (7) is connected with second round bend wheel (13).

2. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction according to claim 1, is characterized in that: the transmission mechanism (2) comprises a transmission component (21), the transmission component (21) is arranged at the bottom of the inner side of the roll bending machine shell (1), first bearings (25) are fixedly arranged at two ends of the inner side of the roll bending machine shell (1), a first rotating shaft (22) is rotatably connected between the two first bearings (25), the transmission component (21) is in transmission connection with the first rotating shaft (22), the surface of the first rotating shaft (22) is provided with an engaging component (24), a second bearing (26) is arranged right above the first bearing (25), a second rotating shaft (23) is rotatably connected between the two second bearings (26), the first rotating shaft (22) is in transmission connection with the second rotating shaft (23) through an engaging component (24), the surface of the second rotating shaft (23) is provided with a toothed chain component (27), and the second rotating shaft (23) is in transmission connection with the fixed wheel shaft body (7) through the toothed chain component (27).

3. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction as claimed in claim 2, wherein: the transmission assembly (21) comprises a transmission motor (211), an output end of the transmission motor (211) is fixedly connected with a transmission shaft (212), a belt (213) is sleeved on the surface of the transmission shaft (212), a transmission disc (214) is fixedly connected with the surface of the first bearing (25), and the transmission shaft (212) is in transmission connection with the transmission disc (214) through the belt (213).

4. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction as claimed in claim 2, wherein: the meshing assembly (24) comprises a driving gear (241) and a driven gear (242), the driving gear (241) is fixedly connected to the surface of the first rotating shaft (22), the driven gear (242) is fixedly connected to the surface of the second rotating shaft (23), and the driving gear (241) is meshed with the driven gear (242).

5. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction as claimed in claim 4, wherein: the inner upper end of the roll bending machine shell (1) is provided with a group of second rotating shafts (23), and the surfaces of the second rotating shafts (23) are fixedly connected with driven gears (242).

6. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction as claimed in claim 2, wherein: the gear chain assembly (27) comprises a first gear (271), the surface of the second rotating shaft (23) is fixedly connected with the first gear (271), the surface of the fixed axle body (7) is fixedly connected with a second gear (273), chains (272) are arranged on the outer sides of the first gear (271) and the second gear (273), and the first gear (271) and the second gear (273) are meshed with the chains (272).

7. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction according to claim 1, is characterized in that: the supporting structure (9) comprises a fixing block (91), a round hole (92) is formed in the inner side of the fixing block (91), and the fixed wheel shaft body (7) is rotatably connected to the inner side of the round hole (92).

8. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction according to claim 1, is characterized in that: the movable assembly (6) comprises a movable block (61), fixing plates (62) are arranged on two sides of the movable block (61), positioning screws (63) are arranged on the surfaces of the fixing plates (62), and the fixing plates (62) are fixedly installed on the side faces of the movable block (61) through the positioning screws (63).

9. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction according to claim 8, wherein: mounting holes (64) are formed in the side faces of the movable block (61) and the fixed plate (62), and the movable wheel shaft body (11) is rotatably connected to the inner side of the mounting holes (64).

10. The roll bending machine with the movable wheel shaft capable of being automatically lifted and positioned in the axial direction according to claim 1, is characterized in that: the middle of the top of the roll bending machine shell (1) is provided with a second opening (15), and the right end of the top of the roll bending machine shell (1) is provided with a first opening (14).