CN212598112U - Bending device and pipe bending machine - Google Patents

Abstract

The application provides a bending device and a pipe bending machine, and belongs to the field of machining equipment. The bending device comprises a base and a die clamping mechanism, a circular die is arranged on the base, the die clamping mechanism comprises a swing arm seat, a die clamping piece and a driving mechanism, the die clamping piece and the driving mechanism are arranged on the swing arm seat, the swing arm seat is rotatably connected to the base, the die clamping piece is movably arranged along the direction close to or far away from the circular die, the driving mechanism comprises a driving cylinder and a force increasing mechanism, and a piston rod of the driving cylinder is in driving connection with the die clamping piece through the force increasing mechanism so as to drive the die clamping piece to move. The application provides a bending device and bending machine, through setting up the reinforcement mechanism, and the piston rod that drives actuating cylinder passes through the reinforcement mechanism and presss from both sides the module drive with the drive and be connected and press from both sides the module removal, the output of cylinder can be increased to the reinforcement mechanism for it is great to press from both sides the clamping-force of mould mechanism to tubular product, improves the return bend precision of bending device when bending to the great tubular product of footpath or pipe wall.

Description

Bending device and pipe bending machine

Technical Field

The application belongs to the technical field of processing equipment and relates to a bending device and a pipe bending machine.

Background

The pipe bender is used as a pipe bending device and has wide application in various industries. The pipe bending machine is provided with a bending device which is used for bending the pipe. The existing bending device generally comprises a circular die and a die clamping mechanism, wherein a bending guide groove is formed in the circular die, the die clamping mechanism comprises a driving mechanism and a die clamping piece, an accommodating groove is concavely formed in the side surface of the die clamping piece, and the accommodating groove and the guide groove are oppositely arranged to form a pipe channel through which a pipe can pass. The driving mechanism drives the clamp module to move back and forth in the direction close to or far away from the round die so as to clamp and release the pipe. When the driving mechanism drives the die clamping component to move along the direction close to the circular die, the die clamping mechanism can clamp the pipe in the pipe channel, and then the pipe is driven to be bent along the guide groove through the integral rotation of the die clamping mechanism so as to realize the bending treatment of the pipe.

In the existing mold clamping mechanism, a driving mechanism is generally an air cylinder, and the air cylinder directly drives a mold clamping component to move through a piston rod. Based on consideration of factors such as cost and gravity, the air cylinder in the die clamping mechanism is generally a small air cylinder, and the output force of a piston rod of the air cylinder is limited, so that the clamping force of the die clamping mechanism is limited, and the problem that the bending precision is reduced when the bending device bends a pipe with a larger pipe diameter or pipe wall is easily caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the technical problem, the application provides a bending device and a pipe bending machine, through setting up the force amplification mechanism, and the piston rod that drives actuating cylinder passes through the force amplification mechanism and presss from both sides the mould piece drive connection and move in order to drive the clamp module piece, the output power that the force amplification mechanism can increase the cylinder for the clamping force of clamp module mechanism to tubular product is great, improves the return bend precision of bending device when bending to the tubular product that pipe diameter or pipe wall are great.

(II) technical scheme

First aspect, the application provides a bending device, including base and clamp mould mechanism, be equipped with the circle mould on the base, clamp mould mechanism includes the swing arm seat and installs clamp module and actuating mechanism on the swing arm seat, the swing arm seat rotates to be connected in the base, the clamp module is along being close to or keeping away from the movably setting of direction of circle mould, actuating mechanism is including driving actuating cylinder and force amplification mechanism, the piston rod that drives actuating cylinder passes through force amplification mechanism and presss from both sides the module drive and be connected in order to drive the clamp module and remove.

Further, press from both sides the mould piece and include the connecting seat and set up the grip block on the connecting seat, the reinforcement mechanism includes first connecting rod, the second connecting rod, third connecting rod and fourth connecting rod, the one end of first connecting rod is rotated through first pivot and is connected in the connecting seat and the other end rotates through the second pivot and connect in the swing arm seat, the one end of second connecting rod is rotated and is connected in the one end of third connecting rod in first pivot and the other end rotates through the third pivot, the one end that the third pivot was kept away from to the third connecting rod rotates through the fourth pivot and connects in the one end of fourth connecting rod, the one end that the fourth pivot was kept away from to the fourth connecting rod rotates through the fifth pivot and connects in the connecting seat, the fourth pivot rotates with the swing arm seat to be connected, the fifth pivot is located one side that the circle mould was kept away from to first pivot, it rotates to connect.

Furthermore, the third rotating shaft is located between the second rotating shaft and the fourth rotating shaft.

Further, the clamping block is detachably and fixedly connected to the connecting seat.

Furthermore, the connecting seat comprises a sliding seat and a die clamping seat arranged on the sliding seat, and the clamping block is movably arranged on the die clamping seat along the direction close to or far away from the round die.

Further, the swing arm seat includes fixed connection's first curb plate and second curb plate, and the interval sets up in order being formed with between first curb plate and the second curb plate and holds the chamber, and force amplifier is arranged in holding the chamber and the second pivot all rotates with the fourth pivot and installs on first curb plate and second curb plate.

Further, force amplification mechanism all is equipped with the antifriction plate respectively with between first curb plate and the second curb plate, fixed connection between antifriction plate and the first curb plate or the second curb plate that correspond.

Furthermore, the swing arm seat is rotatably connected to the base through a sixth rotating shaft, the bending device further comprises a driving motor, the driving motor is installed on the base, and an output shaft of the driving motor is in transmission connection with the sixth rotating shaft to drive the sixth rotating shaft to rotate.

Furthermore, an output shaft of the driving motor is in transmission connection with the sixth rotating shaft through a transmission gear assembly.

In a second aspect, the application further provides a pipe bending machine including the bending apparatus.

(III) advantageous effects

According to the technical scheme, the method has the following beneficial effects:

the application provides a bending device and bending machine, through setting up the reinforcement mechanism, and the piston rod that drives actuating cylinder passes through the reinforcement mechanism and presss from both sides the module drive with the drive and be connected and press from both sides the module removal, the output of cylinder can be increased to the reinforcement mechanism for it is great to press from both sides the clamping-force of mould mechanism to tubular product, improves the return bend precision of bending device when bending to the great tubular product of footpath or pipe wall.

Drawings

FIG. 1 is a schematic front view of a bending apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic side view of the structure of a clamping device according to an embodiment of the present application;

FIG. 3 is a schematic top view of a clamping device according to an embodiment of the present application;

FIG. 4 is a perspective view of the clamping device according to the embodiment of the present application;

FIG. 5 is a partial schematic structural view of a clamping device according to an embodiment of the present application;

FIG. 6 is a side view of the structure of FIG. 5;

fig. 7 is a perspective view of the structure shown in fig. 5.

Reference numerals:

100. a base; 110. a die backing seat; 120. a round die holder; 130. a circular mold; 131. a guide groove; 140. a sixth rotating shaft; 150. a drive motor; 200. a mold clamping mechanism; 210. a swing arm seat; 211. a first side plate; 212. a second side plate; 213. an accommodating chamber; 220. a clip module; 221. a sliding seat; 222. a die clamping seat; 223. a clamping block; 224. accommodating grooves; 225. a T-shaped groove; 226. a T-shaped slider; 230. a driving cylinder; 241. a first link; 242. a second link; 243. a third link; 244. a fourth link; 245. a first rotating shaft; 246. a second rotating shaft; 247. a third rotating shaft; 248. a fourth rotating shaft; 249. a fifth rotating shaft; 250. a cylinder joint; 300. wear plates.

Detailed Description

The application provides bending device and bending machine, through setting up the boosting mechanism, and the piston rod that drives actuating cylinder 230 passes through the boosting mechanism and presss from both sides the module 220 drive connection and move in order to drive clamp module 220, the output power of cylinder can be increased to the boosting mechanism for the clamping force of clamp module 200 to tubular product is great, improves the return bend precision of bending device when bending the great tubular product of pipe diameter or pipe wall.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.

As shown in fig. 1 to 7, it should be understood that the bending apparatus includes a base 100, a circular mold 130 and a mold copying mechanism are provided on the base 100, a mold clamping mechanism 200 includes a swing arm base 210, and a mold clamping member 220 and a driving mechanism are mounted on the swing arm base 210, and the mold clamping mechanism 200 is rotatably connected to the base 100 through the swing arm base 210, so that the mold clamping mechanism 200 can rotate relative to the mold copying mechanism. The profiling mechanism is provided with a profiling seat 110 and a profiling installed on the profiling seat 110, and the profiling can be used for being abutted and matched with the pipe so as to facilitate bending of the pipe.

In an exemplary embodiment of the present disclosure, a bending apparatus is provided, and the following describes each component of the present embodiment in detail:

in this embodiment of the present application:

with reference to fig. 1 to 7, an embodiment of the present application provides a bending apparatus, which includes a base 100 and a die clamping mechanism 200, a circular die 130 is disposed on the base 100, the die clamping mechanism 200 includes a swing arm base 210, and a die clamping module 220 and a driving mechanism that are mounted on the swing arm base 210, the swing arm base 210 is rotatably connected to the base 100, the die clamping module 220 is movably disposed in a direction approaching to or departing from the circular die 130, the driving mechanism includes a driving cylinder 230 and a force increasing mechanism, and a piston rod of the driving cylinder 230 is drivingly connected to the die clamping module 220 through the force increasing mechanism to drive the die clamping module 220 to move.

In the present embodiment, the mold clamping mechanism 200 is rotatably connected to the base 100 through the swing arm base 210, and since the mold clamping member 220 and the driving mechanism are both disposed on the swing arm base 210, both the mold clamping member 220 and the driving mechanism can rotate relative to the base 100. The rotation direction of the mold clamping mechanism 200 relative to the base 100 is shown by arrow a in fig. 3. The base 100 is provided with a circular die holder 120, the circular die holder 120 is provided with a circular die 130, the circular die 130 is provided with a guide groove 131, and the clamping die 220 is provided with an accommodating groove 224. When the pipe needs to be clamped, the accommodating groove 224 on the clamping module 220 is butted with the guide groove 131 to form a clamping channel for clamping the pipe, the pipe is clamped in the clamping channel, and the pipe can be bent by rotating the swing arm seat 210.

The piston rod of the driving cylinder 230 is in driving connection with the clamping module 220 through a force increasing mechanism to drive the clamping module 220 to move in a direction close to or far away from the circular die 130, so that the clamping or releasing of the pipe is realized. Because the piston rod of the driving cylinder 230 is in driving connection with the clamping module 220 through the force-increasing mechanism, the force-increasing mechanism can increase the output force of the cylinder, so that the clamping force of the clamping module 200 on the pipe is larger, and the pipe bending precision of the bending device when the pipe with larger diameter or pipe wall is bent is improved.

In some embodiments of the present application, the clamping module 220 includes a connecting seat and a clamping block 223 disposed on the connecting seat, the force-increasing mechanism includes a first connecting rod 241, a second connecting rod 242, a third connecting rod 243 and a fourth connecting rod 244, one end of the first connecting rod 241 is rotatably connected to the connecting seat through a first rotating shaft 245 and the other end is rotatably connected to the swing arm seat 210 through a second rotating shaft 246, one end of the second connecting rod 242 is rotatably connected to the first rotating shaft 245 and the other end is rotatably connected to one end of the third connecting rod 243 through a third rotating shaft 247, one end of the third connecting rod 243 far from the third rotating shaft 247 is rotatably connected to one end of the fourth connecting rod 244 through a fourth rotating shaft 248, one end of the fourth connecting rod 244 far from the fourth rotating shaft 248 is rotatably connected to the connecting seat through a fifth rotating shaft 249, the fourth rotating shaft 248 is rotatably connected to the swing arm seat 210, the fifth rotating shaft is located on a side, the driving cylinder 230 is rotatably connected to the swing arm base 210 and the piston rod is rotatably connected to the third rotating shaft 247.

In this embodiment, two ends of the first link 241 are respectively rotatably connected to the connecting seat and the swing arm seat 210 through the first rotating shaft 245 and the second rotating shaft 246, two ends of the fourth link 244 are respectively rotatably connected to the connecting seat and the swing arm seat 210 through the fourth rotating shaft 248 and the fifth rotating shaft 249, and the connecting seat is movably disposed relative to the swing arm seat 210, so that a parallelogram-shaped four-link mechanism is formed among the connecting seat, the swing arm seat 210, the first link 241 and the fourth link 244. One end of the second connecting rod 242 is rotatably connected to the first rotating shaft 245, and the other end of the second connecting rod 242 is rotatably connected to one end of the third connecting rod 243 through the third rotating shaft 247, one end of the third connecting rod 243 far away from the third rotating shaft 247 is rotatably connected to one end of the fourth connecting rod 244 through the fourth rotating shaft 248, the driving cylinder 230 is rotatably connected to the swing arm base 210, and the piston rod is rotatably connected to the third rotating shaft 247, the first connecting rod 241, the second connecting rod 242 and the clamping module 220 in the four-bar linkage mechanism are synchronously rotated through the telescopic movement of the piston rod, and thus the piston rod drives the clamping module 220 to move in the direction close to or far away from the circular. The fifth rotating shaft 249 is located on a side of the first rotating shaft 245 away from the circular mold 130, the second connecting rod 242 and the third connecting rod 243 are located between the first connecting rod 241 and the fourth connecting rod 244, and the third rotating shaft 247 is located between the second rotating shaft 246 and the fourth rotating shaft 248. In the present embodiment, by providing the force increasing mechanism as described above, the output force of the cylinder can be increased, and the clamping force output by the clamping mechanism 200 can be several times the output force of the driving cylinder 230.

The driving cylinder 230 and the third rotating shaft 247 are rotatably connected by, for example: the third rotating shaft 247 is rotatably connected with a cylinder joint 250, and a piston rod of the driving cylinder 230 is fixedly connected with the cylinder joint 250.

In some embodiments of the present application, the clamping block 223 is detachably fixedly connected to the connection socket. With this arrangement, the gripper block 223 can be replaced. The detachable fixed connection means is, for example, but not limited to, a bolt connection or the like.

In some embodiments of the present application, the connecting seat includes a sliding seat 221 and a clamping seat 222 disposed on the sliding seat 221, and the clamping block 223 is movably disposed on the clamping seat 222 along a direction close to or away from the circular mold 130. So set up, can be convenient for adjust the interval between grip block 223 and the circle mould 130 to make die clamping mechanism 200 can carry out the centre gripping to the tubular product of different pipe diameters.

The clamping block 223 is detachably and fixedly connected to the clamping base 222. The sliding base 221 is slidable relative to the swing arm base 210 in a direction toward or away from the circular mold 130, that is, the clip module 220 is movably disposed in a direction toward or away from the circular mold 130 by the sliding base 221.

The embodiment in which the clamping block 223 is movably disposed on the clamping seat 222 along a direction close to or away from the circular mold 130 is, for example: the sliding seat 221 is provided with a T-shaped groove 225, a T-shaped sliding block 226 is slidably connected in the T-shaped groove 225, the T-shaped sliding block 226 is fixedly connected with the die holder 222 through a bolt, and the width of the die holder 222 is greater than the width of the notch of the T-shaped groove 225. Because the T-shaped slider 226 is fixedly connected with the die holder 222 through the bolt, when the bolt rotates in the unscrewing direction, the clamping force of the T-shaped slider 226 and the die holder 222 on the sliding seat 221 is gradually reduced and disappears, and at this time, the die holder 222 can move relative to the sliding seat 221; when the bolt rotates in the tightening direction, the clamping force of the T-shaped slider 226 and the die holder 222 on the sliding seat 221 gradually increases, so that the T-shaped slider 226 and the die holder 222 tightly clamp the sliding seat 221.

In some embodiments of the present application, the swing arm base 210 includes a first side plate 211 and a second side plate 212 fixedly connected, the first side plate 211 and the second side plate 212 are spaced apart to form an accommodating cavity 213, the force increasing mechanism is located in the accommodating cavity 213, and the second rotating shaft 246 and the fourth rotating shaft 248 are both rotatably mounted on the first side plate 211 and the second side plate 212.

In the present embodiment, the force increasing mechanism and the sliding seat 221 are both located in the accommodating cavity 213, and the second rotating shaft 246 and the fourth rotating shaft 248 in the force increasing mechanism are both rotatably mounted on the first side plate 211 and the second side plate 212, and the driving motor 150 is rotatably connected to the first side plate 211 and the second side plate 212. It should be appreciated that when the clamp module 220 is moved in a direction away from the circular die 130, the fourth link 244 and portions of the connecting seat may protrude out of the receiving cavity.

In some embodiments of the present application, wear plates 300 are disposed between the force increasing mechanism and the first side plate 211 and the second side plate 212, respectively, and the wear plates 300 are fixedly connected to the corresponding first side plate 211 or the second side plate 212. By arranging the wear plate 300, friction between the force increasing mechanism and the first side plate 211 and the second side plate 212 during movement can be avoided, and the service life of the swing arm seat 210 can be prolonged.

In some embodiments of the present application, the swing arm base 210 is rotatably connected to the base 100 through the sixth rotating shaft 140, the bending apparatus further includes a driving motor 150, the driving motor 150 is mounted on the base 100, and an output shaft of the driving motor 150 is in transmission connection with the sixth rotating shaft 140 to drive the sixth rotating shaft 140 to rotate.

In the embodiment, the circular mold base 120 is fixedly sleeved on the end of the sixth rotating shaft 140, so that the circular mold 130 and the circular mold base 120 can rotate synchronously with the sixth rotating shaft 140. The driving motor 150 is installed on the base 100, and an output shaft of the driving motor 150 is in transmission connection with the sixth rotating shaft 140 to drive the sixth rotating shaft 140 to rotate, so that the mold clamping mechanism 200 rotates relative to the base 100.

Wherein, the output shaft of the driving motor 150 is in transmission connection with the sixth rotating shaft 140 through a transmission gear assembly. The transmission gear assembly comprises a first gear, a second gear and a third gear, the first gear is fixedly mounted on the sixth rotating shaft 140, the third gear is fixedly mounted on an output shaft of the driving motor 150, and the first gear and the third gear are in transmission connection through the second gear, so that the driving motor 150 drives the sixth rotating shaft 140 to rotate.

The application also provides a pipe bending machine which comprises the bending device in the embodiment.

Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, one skilled in the art should clearly recognize the present application.

It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the specific structures, shapes, or configurations shown in the examples.

It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as those referring to "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the attached drawings and are not intended to limit the scope of the present application. In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

The above embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above embodiments are only for illustrative purposes and are not to be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a bending device, its characterized in that includes base and die clamping mechanism, be equipped with the circle mould on the base, die clamping mechanism includes the swing arm seat and install in clamp module and actuating mechanism on the swing arm seat, the swing arm seat rotate connect in the base, it is along being close to or keeping away from to press from both sides the module the movably setting of direction of circle mould, actuating mechanism is including driving actuating cylinder and force amplification mechanism, the piston rod that drives actuating cylinder passes through force amplification mechanism with die clamping member drive connection is in order to drive the die clamping member removes.

2. The bending device according to claim 1, wherein the clamping module comprises a connecting seat and a clamping block disposed on the connecting seat, the force-increasing mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, one end of the first connecting rod is rotatably connected to the connecting seat through a first rotating shaft, the other end of the first connecting rod is rotatably connected to the swing arm seat through a second rotating shaft, one end of the second connecting rod is rotatably connected to the first rotating shaft, the other end of the second connecting rod is rotatably connected to one end of the third connecting rod through a third rotating shaft, one end of the third connecting rod, which is far away from the third rotating shaft, is rotatably connected to one end of the fourth connecting rod through a fourth rotating shaft, one end of the fourth connecting rod, which is far away from the fourth rotating shaft, is rotatably connected to the connecting seat through a fifth rotating shaft, and the fourth rotating shaft is rotatably connected, the fifth rotating shaft is located on one side, far away from the circular die, of the first rotating shaft, the driving air cylinder is rotatably connected to the swing arm seat, and the piston rod is rotatably connected with the third rotating shaft.

3. The bending device according to claim 2, wherein the third rotation axis is located between the second rotation axis and the fourth rotation axis.

4. The bending device according to claim 2, wherein the clamping block is detachably fixedly connected to the connecting base.

5. The bending device according to claim 2, wherein the connecting base includes a sliding base and a clamping base disposed on the sliding base, and the clamping block is movably disposed on the clamping base in a direction toward or away from the circular die.

6. The bending device according to claim 2, wherein the swing arm base comprises a first side plate and a second side plate which are fixedly connected, an accommodating cavity is formed between the first side plate and the second side plate at an interval, the force increasing mechanism is located in the accommodating cavity, and the second rotating shaft and the fourth rotating shaft are rotatably mounted on the first side plate and the second side plate.

7. The bending device according to claim 6, wherein wear plates are respectively arranged between the force increasing mechanism and the first side plate and between the force increasing mechanism and the second side plate, and the wear plates are fixedly connected with the corresponding first side plate or the corresponding second side plate.

8. The bending device according to claim 1, wherein the swing arm base is rotatably connected to the base through a sixth rotating shaft, the bending device further comprises a driving motor, the driving motor is mounted on the base, and an output shaft of the driving motor is in transmission connection with the sixth rotating shaft to drive the sixth rotating shaft to rotate.

9. The bending device according to claim 8, wherein an output shaft of the driving motor is in transmission connection with the sixth rotating shaft through a transmission gear assembly.

10. A bender, characterized by comprising a bending apparatus according to any of claims 1-9.

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