CN215965682U

CN215965682U - Synchronous bending device

Info

Publication number: CN215965682U
Application number: CN202120698961.XU
Authority: CN
Inventors: 王小美; 李健; 冒爱琴; 孙书刚; 朱金金
Original assignee: Nantong Institute of Technology
Current assignee: Nantong Institute of Technology
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-03-08
Anticipated expiration: 2031-03-29

Abstract

The application discloses a synchronous bending device, which is used for bending round steel and comprises an operation table, a driving assembly and a bending assembly; the operating platform is provided with an operating platform surface, the operating platform surface is provided with a bending component and a bending groove, and the operating platform is also provided with a driving component; the bending assembly comprises a pressing assembly and two bending blocks, and the bending blocks are arranged in the bending grooves; the driving assembly comprises an operating device, a power device and a power transmission assembly, the operating device drives the power device to transmit power through the power transmission assembly, so that the pressing assembly compresses the round steel, and the bending block moves in the bending groove to bend the round steel. The application provides a synchronous bending device can bend the both ends of round steel in step with the both arms rings of processing growth annular shape, easy operation, and production efficiency is high, and processingquality is stable.

Description

Synchronous bending device

Technical Field

The application relates to the technical field of deformation processing, in particular to a synchronous bending device.

Background

In the oil drilling industry, the hoisting ring is used as a middle transition device for connecting a top drive and wellhead equipment, so that the bearing load is large, and the strength requirement is high. Double-arm lifting rings are widely used in minor repair operation, and at present, most of the lifting rings bend high-strength round steel to be processed into long circular shapes. However, in the method, one side needs to be bent first, then the other side is manually switched to be bent, a worker needs to operate the manual valve, and the direction of the round steel to be bent needs to be changed for several times, so that the straight round steel can be processed into the long circular double-arm hanging ring, the operation is complicated, the production efficiency is low, and the last butt joint is different in length frequently, so that the later butt joint welding is difficult, the welding quality is not high, and the strength of the hanging ring is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a synchronous bending device, both ends that can bend the round steel in step are with the both arms rings of processing growth ring shape, easy operation, and production efficiency is high, and processingquality is stable.

In order to solve the technical problem, the technical scheme adopted by the application is as follows: a synchronous bending device is used for bending round steel and comprises an operation table, a driving assembly and a bending assembly; the operating platform is provided with an operating platform surface, the operating platform surface is provided with a bending component and a bending groove, and the operating platform is also provided with a driving component; the bending assembly comprises a pressing assembly and two bending blocks, and the bending blocks are arranged in the bending grooves; the driving assembly comprises an operating device, a power device and a power transmission assembly, the operating device drives the power device to transmit power through the power transmission assembly, so that the pressing assembly compresses the round steel, and the bending block moves in the bending groove to bend the round steel.

The bending groove comprises two arc grooves which are symmetrically arranged, the arc grooves comprise arc sections and outward-expanding sections which extend along the arc sections, the outward-expanding sections are located at the initial positions of the bending blocks for bending the round steel, and the diameters of the outward-expanding sections are slightly larger than those of the arc sections.

The power device comprises a hydraulic power source, a pressing hydraulic cylinder and a swinging hydraulic cylinder, wherein the hydraulic power source provides power, the pressing hydraulic cylinder drives the pressing assembly, and the swinging hydraulic cylinder drives the bending block.

Wherein, above-mentioned compress tightly the subassembly and include compact heap and atress piece, above-mentioned compact heap and above-mentioned pneumatic cylinder fixed connection that compresses tightly, set up the clearance between above-mentioned compact heap and the above-mentioned atress piece and be used for placing above-mentioned round steel.

The power transmission assembly comprises a power transmission pipeline and a gear set, the operating device is connected with the pressing hydraulic cylinder and the swinging hydraulic cylinder through the power transmission pipeline, and the swinging hydraulic cylinder drives the bending block through the gear set.

The power transmission assembly further comprises a main valve, and the operating device is sequentially connected with the main valve and the pressing hydraulic cylinder through the power transmission pipeline.

The power transmission assembly further comprises a sequence valve, and the operating device is sequentially connected with the sequence valve and the swing hydraulic cylinder through the power transmission pipeline.

Wherein, the power transmission pipeline is also connected with the main valve and the sequence valve.

And a telescopic connecting rod is arranged between the gear set and the bending block.

Wherein, the bending block is provided with an arc surface matched with the round steel.

The beneficial effect of this application is: this application is through setting up two pieces of bending, and the both ends that can bend the round steel in step need not to bend the round steel both sides respectively in traditional processing mode with the both arms rings of processing growth annular shape, easy operation, and production efficiency is high, and processingquality is stable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

fig. 1 is a schematic perspective view of a synchronous bending apparatus 1000 according to the present application;

FIG. 2 is a top view of a console 1100 of the present application;

fig. 3 is a schematic cross-sectional view of a synchronous bending apparatus 1000 of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.

Referring to fig. 1 to 3, the synchronous bending device 1000 of the present application is used for bending a round steel 100 into a double-arm hanging ring in the shape of an oblong ring. The synchronous bending apparatus 1000 includes an operation table 1100, a driving unit, and a bending unit, the operation table 1100 has an operation table 1101, the operation table 1101 is provided with the bending unit and a bending groove 1110, the other surface opposite to the operation table 1101 is an operation table back surface 1102, and the operation table 1100 is further provided with the driving unit. The bending assembly includes a compression assembly 1310 and two bending blocks 1301, the bending blocks 1301 being disposed in bending slots 1110.

The driving assembly comprises an operating device 1210, a power device and a power transmission assembly, wherein the operating device 1210 drives the power device to transmit power through the power transmission assembly, so that the pressing assembly 1310 presses the round steel 100, and the bending block 1301 moves in the bending groove 1110 to bend the round steel 100.

Specifically, the operation panel 1100 is made of a metal material, the main body is a plate, the plate has two opposite planes, namely an operation table top 1101 and an operation table back 1102, a support 1103 is further arranged at the lower end of the plate, and the support 1103 enables the operation panel 1100 to be stably arranged on the ground, so that the round steel 100 can be conveniently bent. In this embodiment, the console 1100 is substantially rectangular, and four brackets 1103 are disposed at four vertices of the rectangle and fixed to the console back 1102, so that the console 1100 is stably placed. In other embodiments, the operation panel can also be set up to other shapes, and the support can also be other quantity, for example three, five, or more, as long as the operation panel can satisfy round steel bending requirement and stably place. In addition, the console can also be made of other hard materials, which are not described in detail herein.

The operation table 1101 is provided with a bent groove 1110, and the bent groove 1110 is a through groove. The bending groove 1110 comprises two arc-shaped grooves which are symmetrically arranged, each bending block 1301 is arranged in each arc-shaped groove, the two bending blocks 1301 can work synchronously, and the two ends of the round steel 100 are bent simultaneously, so that the round steel 100 finally forms the long circular ring-shaped double-arm hanging ring. The double-arm hanging ring is in the shape of a long circular ring, both ends of the double-arm hanging ring are semi-circular arcs, the middle section of the double-arm hanging ring is a straight line, two sections of arc-shaped grooves of the bending groove 1110 respectively correspond to the semi-circular arcs at both ends of the double-arm hanging ring, and the two bending blocks 1301 can simultaneously extrude both ends of the round steel 100 to be processed into the double-arm hanging ring when moving in the bending groove 1110. Each arc-shaped groove comprises an arc-shaped section 1111 and an outward-expanding section 1112 extending along the arc-shaped section 1111, the outward-expanding section 1112 is located at the initial position of the bending block 1301 for bending the round steel 100, the diameter of the outward-expanding section 1112 is slightly larger than that of the arc-shaped section 1111, and the outward-expanding section 1112 is smoothly connected with the arc-shaped section 1111.

The double-arm hanging ring can be conveniently taken out after the bending operation is finished by arranging the external expanding section 1112, specifically, after the two bending blocks 1301 extrude the round steel 100 to be bent, the two bending blocks 1301 return to the initial positions in the bending grooves 1110, and because the external expanding section 1112 is arranged at the initial positions, when the bending blocks 1301 return and finally are located in the external expanding section 1112, the diameter of the external expanding section 1112 is slightly larger than that of the arc section 1111, so that a gap can be reserved between the bending blocks 1301 and the double-arm hanging ring formed by bending, the bending blocks 1301 cannot be clamped to the double-arm hanging ring, the double-arm hanging ring can be quickly and conveniently taken out, and compared with the prior art that the double-arm hanging ring can be taken out only by disassembling the corresponding fixed locking devices, the double-arm hanging ring is convenient to operate, the working efficiency is greatly improved, and the complexity of manual operation is reduced.

In other embodiments, the bending groove may be only provided with one segment that is communicated with the bending groove, and in this case, only one bending block may be provided in the bending groove, but two bending blocks may also be provided.

The power plant includes a hydraulic power source that provides power such that hold-down cylinder 1221 drives hold-down assembly 1310, and swing cylinder 1222 drives bending block 1301, hold-down cylinder 1221, and swing cylinder 1222. The pressing hydraulic cylinder 1221 is arranged on the operation table 1101 and is close to the starting position side of the round steel 100 bent by the bending block 1301. In other embodiments, the power device may take other forms, such as a pneumatic power source, a pneumatic cylinder, an electric cylinder, etc., as long as it can provide working power.

The pressing assembly 1310 comprises a pressing block 1311 and a force bearing block 1312, the pressing block 1311 is fixedly connected with a pressing hydraulic cylinder 1221, and a gap is formed between the pressing block 1311 and the force bearing block 1312 and used for placing the round steel 100. Specifically, the force bearing block 1312 is fixedly arranged on the operation table 1101 and located inside the bending groove 1110, and two sections of arc-shaped grooves of the bending groove 1110 are symmetrically arranged on two sides of the force bearing block 1312. The stress block 1312 is in an oblong shape, the size of the stress block is consistent with the inner shape of the double-arm hanging ring in the shape of the oblong ring to be machined and formed, and a stress arc surface matched with the outer surface of the round steel 100 is arranged on the side surface of the stress block 1312, which is in contact with the round steel 100 in the circumferential direction, so that the round steel 100 can be clamped in the stress arc surface, is not easy to slide and convenient to fix, and is uniformly stressed in the bending process. The force bearing block 1312 is made of a metal material, has a height larger than the diameter of the round steel 100, and is arranged on the operation table 1101.

The pressing block 1311 is specifically connected with a piston rod of the pressing hydraulic cylinder 1221, a sliding device is arranged between the pressing block 1311 and the operation table 1101, and when the pressing hydraulic cylinder 1221 moves, the pressing block 1311 can move forward or backward along with the piston rod. The sliding device may specifically be a roller, a combination of a sliding rail and a slider, a sliding groove, or the like, or the contact surface between the pressing block 1311 and the operation table 1101 is smooth enough, as long as it is ensured that the pressing block 1311 can smoothly reciprocate, which is not limited herein. The pressing block 1311 is close to the starting position side of the round bar 100 bent by the bending block 1301. In this embodiment, the reciprocating stroke of the pressing block 1311 coincides with the perpendicular bisector of the connecting line of the two flared sections 1112 of the bending groove 1110, that is, the pressing block 1311 presses the round steel 100 at the middle position of the round steel 100 under the driving of the pressing hydraulic cylinder 1221, so that the round steel 100 is uniformly stressed. In other embodiments, the positions of the pressing block and the pressing hydraulic cylinder are not limited to this, and may be set at other positions between the two outward-expanding sections as long as the round steel can be pressed.

The side setting that compact heap 1311 and round steel 100 contacted compresses tightly the arc surface with round steel 100 surface assorted makes round steel 100 can the block in compressing tightly the arc surface, and is difficult for sliding, is convenient for fix, and the atress is even at the in-process of bending. That is, the round steel 100 can be tightly embraced by the driving of the pressing hydraulic cylinder 1221 through the matching of the stress arc surface on the stress block 1312 and the pressing arc surface on the pressing block 1311, so that the round steel 100 is fixed and convenient to process.

When the compaction hydraulic cylinder 1221 does not drive the piston rod, the gap between the compaction block 1311 and the stress block 1312 is larger than the diameter of the round steel 100, so that the round steel 100 can be conveniently placed in and the lifting ring can be conveniently taken out after being bent. When the compaction hydraulic cylinder 1221 drives the piston rod, the compaction block 1311 moves forward to compact the round bar 100 and fix it. After the bending is completed, when the pressing hydraulic cylinder 1221 drives the piston rod reversely, the pressing block 1311 moves backwards to loosen the round steel 100. In other embodiments, the pressing assembly is not limited to the pressing block and the force-bearing block in this embodiment, and may also be a mechanical structure in other forms, such as a claw, as long as the round steel can be pressed to be fixed.

A bending block 1301 is disposed in the bending slot 1110, the bending block 1301 having a bending axis 1302 for movement in the bending slot 1110. The bending block 1301 is provided with a circular arc surface 1303 matched with the surface of the round steel 100. Specifically, the side that bending block 1301 and round steel 100 contacted sets up the arc surface 1303 with round steel 100 surface assorted for round steel 100 can block between arc surface 1303 and the arc surface that compresses tightly at the in-process of bending, ensures that round steel 100 bends and targets in place, and machine-formed both arms rings satisfy the quality requirement. The bending block 1301 and the bending shaft 1302 may be integrally formed, or may be fixedly connected after being separately formed, for example, by screwing, snapping, welding, or the like, which is not limited herein.

The power transmission assembly comprises a power transmission pipeline 1240 and a gear set 1250, an operating device 1210 is connected with a pressing hydraulic cylinder 1221 and a swinging hydraulic cylinder 1222 through the power transmission pipeline 1240, and the swinging hydraulic cylinder 1222 drives a bending block 1301 through the gear set 1250.

Specifically, in this embodiment, the operating device 1210 is a manual valve, the operating device 1210 is connected to a hydraulic power source, the hydraulic power source inputs power, an operator operates the manual valve to control power input so as to operate the synchronous bending device 1000 to work, the manual valve is operated in a forward direction to perform bending processing, and the manual valve is operated in a reverse direction so as to return the power device to an original starting position, that is, the formed double-arm hanging ring can be taken out, so that time is saved, and efficiency is improved. Power transmission conduit 1240 is a hydraulic line that provides hydraulic fluid flow to transmit power to drive compression assembly 1310 and bending block 1301. In this application, power transmission pipeline 1240 includes the oil feed transmission pipeline, and transmission power bends and processes during forward operation manual valve, still includes oil return transmission pipeline 1243, and transmission power carries out return stroke work during reverse operation manual valve.

The oil inlet transmission pipeline comprises a first oil inlet transmission pipeline 1241 and a second oil inlet transmission pipeline 1242, the first oil inlet transmission pipeline 1241 is connected with the operating device 1210 and the pressing hydraulic cylinder 1221, and the second oil inlet transmission pipeline 1242 is connected with the operating device 1210 and the swing hydraulic cylinder 1222.

In this embodiment, the power transmission assembly further includes a main valve 1231, and the operation device 1210 is connected to the main valve 1231 and the pressing cylinder 1221 in turn through a power transmission line 1240. Specifically, the first oil inlet delivery pipe 1241 is connected to the operation device 1210, the main valve 1231, and the pressing hydraulic cylinder 1221, and when the operation device 1210 is operated, power is transmitted to the main valve 1231 to operate the pressing hydraulic cylinder 1221, so that the pressing block 1311 is driven to press the round steel 100.

In this embodiment, the power transmission assembly further includes a sequence valve 1232, and the operation device 1210 is connected to the sequence valve 1232 and the swing cylinder 1222 in sequence via a power transmission line 1240. A power transmission line 1240 is connected between the main valve 1231 and the sequence valve 1232. Specifically, the second oil inlet transmission pipeline 1242 is sequentially connected to the sequence valve 1232 and the swing hydraulic cylinder 1222, and the second oil inlet transmission pipeline 1242 is further connected between the main valve 1231 and the sequence valve 1232, when the hold-down hydraulic cylinder 1221 reaches the extreme position, the oil pressure in the system rises, and the sequence valve 1232 is smoothly opened after the pressure of the main valve 1231 connected to the system rises. Through the setting of sequence valve 1232, can make synchronous bending device 1000 work in order, compress tightly round steel 100 earlier, bend round steel 100 again. Specifically, when the operating device 1210 is operated, power is transmitted to the main valve 1231 and then to the pressing cylinder 1221 to start the operation, the pressing block 1311 is driven to press the round bar 100, the system pressure rises when the system reaches the pressing position, the sequence valve 1232 is opened, power is transmitted to the swing cylinder 1222 to start the operation, and the swing cylinder 1222 drives the two bending blocks 1301 to start the synchronous bending operation.

The return oil delivery pipe 1243 is connected to the operation device 1210, the main valve 1231, and the hold-down hydraulic cylinder 1221 in this order, and is connected to the sequence valve 1232 and the swing hydraulic cylinder 1222 in this order from the main valve 1231, and transmits power to perform return operation when the manual valve is operated in the reverse direction, and the hold-down block 1311 is released and the two bending blocks 1301 are driven to return to the expanded sections 1112 of the bending grooves 1110 in synchronization.

In this embodiment, the operation device 1210 and the main valve 1231 are provided on the operation table 1100 and located on the side of the operation table 1100, and the sequence valve 1232 and the swing hydraulic cylinder 1222 are provided on the support 1103. In other embodiments, the device can be arranged on the operation table top or the back of the operation table so as to be convenient for assembly and operation.

In other embodiments, main valve and sequence valve also can not be set, and operating means can set up to including two manual valves, and first manual valve compresses tightly the pneumatic cylinder through first oil feed transmission pipeline lug connection, and the second manual valve compresses tightly the pneumatic cylinder through second oil feed transmission pipeline lug connection, and the during operation operates first manual valve earlier and makes to compress tightly the piece and compress tightly the round steel of pneumatic cylinder drive, operates the second manual valve again and makes two pieces of bending of swing pneumatic cylinder drive. The oil return transmission pipeline is divided into two paths, one path is connected with the first manual valve and the compaction hydraulic cylinder, the other path is connected with the second manual valve and the swing hydraulic cylinder, the first manual valve and the second manual valve are operated reversely, the compaction block is loosened, the two bending blocks are driven to synchronously return to the outer expanding section of the bending groove, then the double-arm hanging ring is taken down, the first manual valve and the second manual valve can be operated reversely at the same time, and can also be operated sequentially, and the limitation is not required.

A gear set 1250 is disposed between the swing cylinder 1222 and the bending block 1301. Gear set 1250 includes a drive wheel 1251 and a driven wheel 1252 that are intermeshed. The swing hydraulic cylinder 1222 is connected with a driving wheel 1251 for inputting power to drive a driven wheel 1252 to work, and the driven wheel 1252 drives the bending block 1301 to work. In this embodiment, four driven wheels 1252 are linearly arranged below the back 1102 of the operating table after being meshed with each other, and the arrangement straight lines of the four driven wheels 1252 coincide with the connection line of the circle centers of the two semicircular arcs at the two ends of the hanging ring. The four driven wheels 1252 are connected to the console rear surface 1102 by fixed shafts 1253, respectively, and the two driven wheels 1252 at both ends are connected to the bending shafts 1302 of the two bending blocks 1301, respectively. The power of the swing hydraulic cylinder 1222 is transmitted to the bending block 1301 through the gear set 1250, so that the bending and returning are realized. In other embodiments, the number of the driven wheels is not limited to four, but may be two or six or other even numbers, and the number of the driven wheels is set to be an even number, so that the synchronous bending and returning work of the two bending blocks can be realized.

A telescopic link is arranged between the gear set 1250 and the bending block 1301. Specifically, two driven wheels 1252 at both ends are connected to the bending shafts 1302 of the two bending blocks 1301 via telescopic links 1254, respectively. The retractable connecting rod 1254 is of a movable structure, and is matched with the structure of the outward-expanding section 1112 on the bending groove 1110, so that the bending block 1301 can avoid the bent and formed double-arm hanging ring at the end of the return stroke, and a certain gap is left, and the formed double-arm hanging ring can be conveniently taken out.

Specifically, the driving wheel 1251 is connected to a piston rod of the swing hydraulic cylinder 1222, and the swing hydraulic cylinder 1222 drives the driving wheel 1251 to rotate when operating. Four through holes are provided in the force receiving block 1312, one ends of the four fixing shafts 1253 are threaded and respectively passed through the four through holes from the console rear surface 1102, and four nuts are respectively screwed on the threads from the console top 1101 so that the four fixing shafts 1253 are fixed to the console 1100. The other ends of the four fixed shafts 1253 are movably connected to the four driven wheels 1252, specifically, the other ends of the four fixed shafts 1253 are also provided with threads, and after passing through gear through holes at the centers of the four driven wheels 1252, the threads are screwed by four nuts, and the four driven wheels 1252 can smoothly rotate around the fixed shafts 1253, and the four driven wheels 1252 are located at the same horizontal height and are engaged with each other to transmit power.

Fixed shafts 1253 connected to two driven wheels 1252 at both ends are connected to telescopic links 1254 respectively below the console back 1102, and the telescopic links 1254 are connected to the bending shafts 1302 of the bending blocks 1301. Specifically, the retractable connecting rod 1254 is horizontally sleeved on the fixing shaft 1253 and can rotate around the fixing shaft 1253, the retractable connecting rod 1254 extends outward to form a lever arm, a pin slot is formed in the lever arm, a pin shaft is slidably arranged in the pin slot, and the pin shaft is connected with the bending shaft 1302. Because the pin shaft can slide in the pin groove, the telescopic connecting rod 1254 is of a movable structure, when the bending block 1301 needs to enter the outward expanding section 1112 at the end of the return stroke, the bending block 1301 can smoothly slide into the outward expanding section 1112 from the arc section 1111, so that the formed double-arm hanging ring is avoided, and the hanging ring is convenient to take down.

The working process of the synchronous bending device 1000 of the present application is specifically described below:

s1: placing the round steel 100 on the operation table 1101 in the gap between the pressing block 1311 and the force-bearing block 1312;

s2: the operation device 1210 is operated, the power device starts to work, the pressing assembly 1310 is driven to press the round steel 100, and the bending block 1301 moves in the bending groove 1110 to bend the round steel 100 to form a double-arm hanging ring.

Specifically, the operation device 1210 is operated, power is transmitted to a main valve 1231 through a first oil inlet transmission pipeline 1241 and then transmitted to a compaction hydraulic cylinder 1221, the compaction hydraulic cylinder 1221 starts to work, a compaction block 1311 is driven forwards to compact the round steel 100, the system pressure rises after the round steel reaches a compaction position, the power is transmitted to a sequence valve 1232 through a second oil inlet transmission pipeline 1242, the sequence valve 1232 is opened, a swing hydraulic cylinder 1222 starts to work, the swing hydraulic cylinder 1222 moves forwards to drive a driving wheel 1251 to rotate, so that four driven wheels 1252 are driven to rotate, wherein the two driven wheels 1252 at two ends drive two bending blocks 1301 to synchronously move in a bending groove 1110, and the round steel 100 is bent along the shape of the bending groove 1110 to process a long-ring-shaped double-arm hoisting ring.

S3: the operator 1210 is operated in reverse, the hold down assembly 1310 is released and the bending block 1301 returns to the starting position for bending the round bar 100.

Specifically, the reverse operation device 1210 transmits power through the return oil transmission pipeline 1243, the pressing hydraulic cylinder 1221 moves backwards and returns to drive the pressing block 1311 to loosen, the swing hydraulic cylinder 1222 moves reversely to drive the driving wheel 1251 to rotate reversely, so as to drive the four driven wheels 1252 to rotate reversely, wherein the two driven wheels 1252 at the two ends drive the two bending blocks 1301 to return synchronously and reversely, and finally return to the outward expanding section 1112 of the bending groove 1110, so that a gap is reserved between the bending blocks 1301 and the two-arm lifting ring formed by bending.

S4: and taking down the hanging ring.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A synchronous bending device is used for bending round steel and is characterized by comprising an operation table, a driving assembly and a bending assembly;

the operating platform is provided with an operating platform surface, the bending assembly and the bending groove are arranged on the operating platform surface, and the driving assembly is also arranged on the operating platform;

the bending assembly comprises a pressing assembly and two bending blocks, and the bending blocks are arranged in the bending grooves;

the driving assembly comprises an operating device, a power device and a power transmission assembly, the operating device drives the power device to transmit power through the power transmission assembly, so that the pressing assembly presses the round steel tightly, and the bending block moves in the bending groove to bend the round steel;

the bending groove comprises two arc grooves which are symmetrically arranged, each arc groove comprises an arc section and an outer expanding section extending along the arc section, the outer expanding section is located at the initial position of the round steel, the bending block is bent, and the diameter of the outer expanding section is slightly larger than that of the arc section.

2. The synchronous bending device according to claim 1, wherein the power device comprises a hydraulic power source, a hold-down hydraulic cylinder and a swing hydraulic cylinder, the hydraulic power source provides power, the hold-down hydraulic cylinder drives the hold-down assembly, and the swing hydraulic cylinder drives the bending block.

3. The synchronous bending device according to claim 2, wherein the pressing assembly comprises a pressing block and a force bearing block, the pressing block is fixedly connected with the pressing hydraulic cylinder, and a gap is formed between the pressing block and the force bearing block and used for placing the round steel.

4. The synchronous bending device according to claim 2, wherein the power transmission assembly comprises a power transmission pipeline and a gear set, the operating device is connected with the pressing hydraulic cylinder and the swinging hydraulic cylinder through the power transmission pipeline, and the swinging hydraulic cylinder drives the bending block through the gear set.

5. The synchronous bending device according to claim 4, wherein the power transmission assembly further comprises a main valve, and the operation device is sequentially connected with the main valve and the compaction hydraulic cylinder through the power transmission pipeline.

6. The synchronous bending device according to claim 5, wherein the power transmission assembly further comprises a sequence valve, and the operation device is connected with the sequence valve and the swing hydraulic cylinder in sequence through the power transmission pipeline.

7. The synchronous bender device according to claim 6, wherein the power transmission pipeline further connects the main valve and the sequence valve.

8. The synchronous bending device according to claim 4, wherein a telescopic link is provided between the gear set and the bending block.

9. The synchronous bending device according to claim 1, wherein the bending block is provided with a circular arc surface matched with the round steel.