Bending device for body-building steel pipe machining

Abstract

The invention discloses a bending device for bodybuilding steel pipe machining, and belongs to the technical field of bending equipment.The bending device for bodybuilding steel pipe machining comprises a main machine frame, a pipe pushing mechanism is fixedly installed at the top of the front end of the main machine frame, and a feeding limiting mechanism is fixedly installed at the top of the main machine frame; the pushing device is used for pushing to-be-machined steel pipes; the main rack is further rotationally connected with a rotary adjusting mechanism, and a bending and shaping mechanism is installed at the front end of the rotary adjusting mechanism in a sliding mode. An automatic adjusting mechanism is installed on the bending and shaping mechanism, and a rotary bending mechanism is installed on the automatic adjusting mechanism and used for bending and shaping the steel pipe. And a main controller is fixedly mounted on one side of the top of the main rack. By designing the adjustable bending and shaping mechanism, the automatic adjusting mechanism and the rotary bending mechanism, bending machining of steel pipes of different specifications can be completed, bending modules do not need to be frequently replaced, the working efficiency is improved, and meanwhile the machining precision is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of bending equipment, and in particular relates to a bending device used for processing fitness steel pipes. Background Art

[0002] Steel pipe bending equipment is a mechanical device used to bend metal steel pipes into specific shapes or angles to meet the design requirements of fitness equipment. It is widely used in construction, manufacturing, fitness equipment, furniture, automobiles and other industries. At present, the most widely used steel pipe bending equipment on the market is CNC pipe bending machine (CNC pipe bending machine). This equipment is operated by a CNC system and can achieve high-precision bending. CNC bending machines can set parameters such as angle, radius and bending length as needed. They are suitable for complex bending tasks, have a high level of automation, are suitable for mass production, and can ensure the consistency and accuracy of bending.

[0003] Steel pipe is an important component of fitness equipment. It bears the work of main support and execution component. With the increasing variety of fitness equipment types, many fitness equipment with special structural design have appeared on the market. Due to its relatively special design structure, the steel pipe structure as its main part also needs to be bent according to its design scheme. There are many types of steel pipe bending equipment on the market, but most of the existing steel pipe bending equipment has a relatively simple structural design. Although it can use CNC programs to complete bending processing at different angles, usually a set of bending equipment can only process steel pipes of one specification. If steel pipes of different specifications need to be processed, it is generally necessary to replace the entire set of bending modules. Therefore, in the actual processing process, the overall production and processing efficiency of the equipment is affected to a certain extent. In addition, frequent disassembly and replacement of bending modules will also affect the bending accuracy of the steel pipe to a certain extent. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a bending device for processing fitness steel pipes.

[0005] The technical solution adopted to solve the above technical problems is: a bending device for fitness steel pipe processing, comprising a main frame, a pipe pushing mechanism is fixedly installed on the front top of the main frame, and a feed limiting mechanism is fixedly installed on the top of the main frame for pushing the steel pipe to be processed; The main frame is also rotatably connected with a rotation adjustment mechanism, and a bending and shaping mechanism is slidably installed at the front end of the rotation adjustment mechanism; The bending and shaping mechanism is equipped with an automatic adjustment mechanism, and the automatic adjustment mechanism is equipped with a rotary bending mechanism for bending and shaping steel pipes; A main controller is fixedly installed on one side of the top of the main frame. The main controller serves as an integrated control unit of the equipment. It can perform programmed management and control of the execution actions of each actuator through numerical control programming to ensure the processing accuracy of the fitness steel pipe during the processing, while also realizing the automation of the equipment.

[0006] Furthermore, the pipe pushing mechanism includes a pushing rack fixedly installed on the top of the main frame, the pushing rack is rotatably connected to the inside of the pushing rack, a first servo motor for driving the ball screw to rotate is installed at the rear end of the pushing rack, a pushing seat is installed on the ball screw, a ball nut seat matching the ball screw is provided inside the pushing seat, a positioning groove is provided on the top of the pushing rack, a through rectangular hole is provided at the bottom of the positioning groove, and a pushing block is fixedly installed at the front end of the pushing seat.

[0007] Through the above technical scheme, the pipe pushing mechanism is mainly used to automatically push the steel pipe to be processed during the processing. When the steel pipe to be processed is placed in the positioning groove, the first servo motor will start working according to the set program, and the output shaft of the first servo motor will drive the ball screw to rotate synchronously, thereby driving the pushing seat to perform directional movement, and then the pushing block on the pushing seat can be used to push the steel pipe to move toward the bending and forming mechanism.

[0008] Furthermore, the feed limiting mechanism includes a guide seat fixedly mounted on the main frame, and the front end center of the guide seat is threadedly connected to a limiting tube.

[0009] Through the above technical scheme, the feed limit mechanism is mainly used for limiting the movement of steel pipes. During the pushing process, one end of the steel pipe will pass through the guide seat and the limit tube, and the other end of the limit tube extends to a position close to the rotation adjustment mechanism, thereby limiting and assisting the positioning of the remaining part of the steel pipe during the bending process to prevent the steel pipe from deforming at the starting part of the bending. In addition, the limit tube is threadedly connected to the front end of the guide seat. When processing steel pipes of different specifications, the limit tube that matches the specifications can be replaced to ensure the stability and reliability of the steel pipe during the processing.

[0010] Furthermore, the rotation adjustment mechanism includes a rotating seat rotatably connected between the main frame and the feed limit mechanism, the front end of the rotating seat is fixedly connected to the rotating frame, the bottom front end of the rotating frame is fixedly connected to a sliding guide rail, the outer wall of the rotating seat is fixedly installed with a synchronous gear, the front end of the bottom of the main frame is fixedly installed with a driving motor, and the output end of the driving motor is fixedly installed with a first driving gear meshing with the synchronous gear.

[0011] Through the above technical scheme, the rotary adjustment mechanism is used to drive the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously, so that the steel pipe can be bent at different angles and directions by rotating each bending actuator while the steel pipe remains stationary, so as to meet the multi-directional and multi-angle bending processing requirements of the steel pipe. During actual work, the output end of the driving motor drives the first driving gear to rotate, and then drives the synchronous gear to rotate synchronously through the engagement between the gears. Since the synchronous gear is fixedly installed on the rotating seat, it can drive the rotating seat, the rotating frame, the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously; further, a sliding guide rail is also provided at the bottom of the front end of the rotating frame, so that the bending and shaping mechanism can be slidably adjusted on the sliding guide rail and can be fixed by bolts.

[0012] Furthermore, the bending and forming mechanism includes a movable slide slidably installed at the front end of the rotation adjustment mechanism, a fixed seat is fixedly installed on the top of the movable slide, a lifting seat is sleeved on the outer side of the fixed seat, a lifting cylinder is installed between the fixed seat and the lifting seat, a rotating bearing is rotatably connected to the top of the outer wall of the lifting seat, a rectangular positioning column is fixedly connected to the top center of the lifting seat, a plurality of shaping wheel disks are sleeved on the rectangular positioning column, a threaded column is fixedly connected to the top center of the rectangular positioning column, a fixing nut for fixing a plurality of shaping wheel disks is threadedly connected to the outer wall of the threaded column, a rotating gear ring is fixedly installed on the outer ring of the rotating bearing, a connecting arm is fixedly connected to one side of the rotating gear ring, and a second servo motor is also installed on the lifting seat, and a second driving gear meshing with the rotating gear ring is fixedly installed on the output end of the second servo motor.

[0013] Through the above technical scheme, the bending and shaping mechanism serves as a shaping mechanism for the bending radius, and a plurality of shaping wheels are sleeved on its rectangular positioning column. The size design of each shaping wheel is different, so that it can adapt to the bending and shaping of steel pipes of different specifications. In addition, since the plurality of shaping wheels are designed to be stacked vertically, a lifting cylinder is designed between the fixed seat and the lifting seat, so that the position height of the shaping wheel can be adjusted by the lifting cylinder, so that the corresponding shaping wheel can be quickly adjusted into place. Furthermore, the movable slide can be slidably adjusted on the sliding guide rail, and then the position of the entire mechanism in the horizontal direction can be adjusted according to the bending radius of the shaping wheel.

[0014] Furthermore, the connecting arm is designed as an L-shaped structure as a whole.

[0015] Through the above technical solution, the automatic adjustment mechanism and the rotary bending mechanism can be installed on the connecting arm more conveniently, and during the bending process, the second servo motor drives the second driving gear to rotate, and the second driving gear drives the rotating gear ring and the connecting arm to rotate through the engagement between the gears, thereby driving the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously, so that the corresponding shaping wheel can be cooperated to complete the bending of the steel pipe.

[0016] Furthermore, the automatic adjustment mechanism includes a horizontal slide slidably connected to the connecting arm, a horizontal limit column is fixedly connected to the vertical section of the connecting arm, a horizontal adjustment cylinder is also fixedly installed on the connecting arm, the horizontal adjustment cylinder is used to drive the horizontal slide to move horizontally, and a vertical adjustment cylinder is also installed on the top inner surface of the horizontal slide.

[0017] Through the above technical scheme, the automatic adjustment mechanism is mainly used to adjust the horizontal and vertical positions of the rotary bending mechanism. During the feeding process of steel pipes, the horizontal adjustment cylinder will drive the horizontal slide as a whole away from the shaping wheel. When the feeding is completed, the horizontal adjustment cylinder will drive the horizontal slide to reset. At this time, the corresponding bending wheel on the rotary bending mechanism will cooperate with the corresponding shaping wheel to complete the clamping of the side wall of the steel pipe; further, when processing steel pipes of different specifications, after the position adjustment of the shaping wheel is completed, the vertical adjustment cylinder needs to adjust the height of the entire rotary bending mechanism so that the height of the bending wheel can be consistent with the height of the corresponding shaping wheel.

[0018] Furthermore, a first through hole corresponding to the horizontal limit column is opened on the vertical section of the horizontal slide, and a second through hole is opened on one side of the top of the horizontal slide.

[0019] Through the above technical scheme, the first through hole cooperates with the horizontal limit column, and the second through hole cooperates with the vertical limit column, so as to further ensure the stability of the automatic adjustment mechanism during the adjustment process, and at the same time, it can also bear and disperse the lateral shear force borne by the piston rod of the vertical adjustment cylinder during the bending process.

[0020] Furthermore, the rotary bending mechanism includes a fixed frame fixed to the top of the piston rod of the vertical adjustment cylinder, the fixed frame is rotatably connected to a rotating frame inside, a plurality of positioning plates are fixedly connected to the circumferential side of the rotating frame, and a plurality of bending wheel disks are also rotatably connected to the rotating frame, and the plurality of bending wheel disks are respectively located between the plurality of positioning plates, a third servo motor for driving the rotating frame to rotate is installed on the top of the fixed frame, a positioning hole is opened at the center of one side of the fixed frame, a positioning socket is slidably installed on the inner side of the positioning hole, the positioning socket can be plugged into the outer side of the corresponding positioning plate, a magnetic column is provided at the other end of the positioning socket, an electromagnet is installed on the other side of the positioning hole, and a reset spring is installed between the magnetic column and the electromagnet.

[0021] Through the above technical scheme, the processing positions of multiple bending wheels on the rotating frame can be automatically adjusted by the third servo motor, and the specifications and sizes of the multiple bending wheels are matched one by one with the specifications and sizes of the multiple shaping wheels. When the positions of the multiple bending wheels need to be adjusted, the power supply of the electromagnet can be turned on. At this time, the end of the electromagnet will generate a magnetic attraction, so that the magnetic attraction can be used to drive the positioning socket to move toward the electromagnet, so that the positioning socket is retracted into the positioning hole as a whole. At this time, the position of the bending wheel can be adjusted by the third servo motor. After the position adjustment of the bending wheel is completed, the power supply of the electromagnet is disconnected. At this time, under the elastic reverse thrust of the reset spring, the slot at one end of the positioning socket will be inserted into the corresponding positioning plate in the rotating frame, so that the positioning socket is used to complete the locking and fixation of the entire rotating frame. In the subsequent bending process, the connecting arm drives the rotating bending mechanism to rotate at a set angle. At this time, the bending wheel can cooperate with the corresponding shaping wheel to complete the bending processing of the steel pipe.

[0022] Furthermore, a vertical limiting column is fixedly connected to one side of the bottom of the fixing frame, and the bottom end of the vertical limiting column passes through the second through hole.

[0023] The beneficial effects of the present invention are as follows: (1) The present invention can complete the bending processing of steel pipes of different specifications by designing an adjustable bending and shaping mechanism, an automatic adjustment mechanism and a rotary bending mechanism, without the need to frequently replace the bending module, which not only improves the work efficiency but also ensures the processing accuracy; (2) The present invention can adjust the distance between the bending wheel and the shaping wheel according to the bending radius requirements of the steel pipe by designing an automatic adjustment mechanism and a rotary bending mechanism, and can complete the bending processing of different radii by adjusting the distance and angle; (3) The present invention can drive the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously during operation by designing a rotary adjustment mechanism, so that the steel pipe can be bent at different angles and directions by rotating each bending actuator while the steel pipe remains stationary, so as to meet the multi-directional and multi-angle bending processing requirements of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a first perspective structural diagram of the present invention; Figure 2 It is a second viewing angle structural diagram of the present invention; Figure 3 It is a third perspective structural diagram of the present invention; Figure 4 It is a front view of the present invention; Figure 5 It is a right side view of the present invention; Figure 6 It is a schematic diagram of the installation structure of the feed limiting mechanism of the present invention; Figure 7 is a front view of the rotary adjustment mechanism of the present invention; Figure 8 yes Figure 7 Middle AA section view; Fig. 9 This is a schematic diagram of the structure of the pipe pushing mechanism of the present invention from a first perspective; Fig.10 It is a structural schematic diagram of the pipe pushing mechanism of the present invention from a second viewing angle; Fig.11 It is a schematic structural diagram of the bending and shaping mechanism of the present invention from a first viewing angle; Fig.12 It is a schematic structural diagram of the bending and shaping mechanism of the present invention from a second viewing angle; Fig.13 is a cross-sectional view of the bending and shaping mechanism of the present invention; Fig.14 It is a structural schematic diagram of the automatic adjustment mechanism and the rotary bending mechanism of the present invention; Fig.15 yes Fig.14 Middle BB section view; Fig.16 This is a diagram of the large radius bending state of the steel pipe.

[0025] Figure numerals: 1, main frame; 2, pipe pushing mechanism; 201, pushing frame; 202, ball screw; 203, first servo motor; 204, pushing seat; 205, positioning groove; 206, rectangular hole; 207, pushing block; 3, feeding limit mechanism; 301, guide seat; 302, limit tube; 4, rotation adjustment mechanism; 401, rotating seat; 402, rotating frame; 403, sliding guide rail; 404, synchronous gear; 405, driving motor; 406, first driving gear; 5, bending and shaping mechanism; 501, moving slide; 502, fixed seat; 503, lifting seat; 504, lifting cylinder; 505, rotating bearing; 506, rectangular positioning column; 5 07. Shaped wheel; 508. Threaded column; 509. Fixed nut; 510. Rotating gear ring; 511. Connecting arm; 512. Second servo motor; 513. Second driving gear; 6. Automatic adjustment mechanism; 601. Horizontal slide; 602. Horizontal limit column; 603. Horizontal adjustment cylinder; 604. Vertical adjustment cylinder; 7. Rotary bending mechanism; 701. Fixed frame; 702. Rotating frame; 703. Positioning plate; 704. Bending wheel; 705. Third servo motor; 706. Positioning hole; 707. Positioning socket; 708. Magnetic column; 709. Electromagnet; 710. Reset spring; 711. Vertical limit column; 8. Main controller; 9. Steel pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1-Figure 16As shown, a bending device for fitness steel pipe processing in this embodiment includes a main frame 1, a pipe pushing mechanism 2 is fixedly installed on the front top of the main frame 1, and the pipe pushing mechanism 2 includes a pushing frame 201 fixedly installed on the top of the main frame 1, and the pushing frame 201 is internally rotatably connected with a ball screw 202, and the rear end of the pushing frame 201 is installed with a first servo motor 203 for driving the ball screw 202 to rotate, and a pushing seat 204 is installed on the ball screw 202, and a ball nut seat matching the ball screw 202 is arranged inside the pushing seat 204, and a positioning groove 203 is opened on the top of the pushing frame 201. 05, a rectangular hole 206 is provided at the bottom of the positioning groove 205, and a pushing block 207 is fixedly installed at the front end of the pushing seat 204. The pipe pushing mechanism 2 is mainly used for automatically pushing the steel pipe 9 to be processed during the processing. When the steel pipe 9 to be processed is placed in the positioning groove 205, the first servo motor 203 starts to work according to the set program, and the output shaft of the first servo motor 203 drives the ball screw 202 to rotate synchronously, thereby driving the pushing seat 204 to perform directional movement, and then the pushing block 207 on the pushing seat 204 can be used to push the steel pipe 9 to move toward the bending and forming mechanism 5.

[0028] For feed limit mechanism 3, refer to Figure 1-Figure 10 A feed limiting mechanism 3 is fixedly installed on the top of the main frame 1 for pushing the steel pipe 9 to be processed; the feed limiting mechanism 3 includes a guide seat 301 fixedly installed on the main frame 1, and the front end center of the guide seat 301 is threadedly connected with a limiting tube 302. The feed limiting mechanism 3 is mainly used for limiting the movement of the steel pipe 9. During the pushing process, one end of the steel pipe 9 will pass through the guide seat 301 and the limiting tube 302, and the other end of the limiting tube 302 extends to a position close to the rotation adjustment mechanism 4, so that the remaining part of the steel pipe 9 can be limited and auxiliary positioning functions can be played during the bending process to prevent the steel pipe from deforming at the starting part of the bending. In addition, the limiting tube 302 is threadedly connected to the front end of the guide seat 301. When processing steel pipes 9 of different specifications, the limiting tube 302 matching the specifications can be replaced to ensure the stability and reliability of the steel pipe 9 during the processing.

[0029] Regarding the rotation adjustment mechanism 4, refer to Figure 1-Figure 8The main frame 1 is also rotatably connected with a rotation adjustment mechanism 4, which includes a rotating seat 401 rotatably connected between the main frame 1 and the feed limit mechanism 3, the front end of the rotating seat 401 is fixedly connected with a rotating frame 402, the bottom of the front end of the rotating frame 402 is fixedly connected with a sliding guide rail 403, the outer wall of the rotating seat 401 is fixedly installed with a synchronous gear 404, the front end of the bottom of the main frame 1 is fixedly installed with a driving motor 405, and the output end of the driving motor 405 is fixedly installed with a first driving gear 406 meshing with the synchronous gear 404, and the rotation adjustment mechanism 4 is used to drive the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotating bending mechanism 7 to rotate synchronously, so that the steel pipe 9 can be kept stationary by rotating. Each bending actuator is used to bend the steel pipe at different angles and directions to meet the multi-directional and multi-angle bending processing requirements of the steel pipe. During actual operation, the output end of the drive motor 405 drives the first drive gear 406 to rotate, and then drives the synchronous gear 404 to rotate synchronously through the engagement between the gears. Since the synchronous gear 404 is fixedly installed on the rotating seat 401, it can drive the rotating seat 401, the rotating frame 402, the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotating bending mechanism 7 to rotate synchronously; further, a sliding guide rail 403 is also provided at the bottom of the front end of the rotating frame 402, so that the bending and shaping mechanism 5 can be slidably adjusted on the sliding guide rail 403 and can be fixed by bolts.

[0030] For bending and shaping mechanism 5, refer to Figure 1-Figure 15, a bending and shaping mechanism 5 is slidably installed at the front end of the rotating adjustment mechanism 4; the bending and shaping mechanism 5 includes a moving slide 501 slidably installed at the front end of the rotating adjustment mechanism 4, a fixed seat 502 is fixedly installed on the top of the moving slide 501, a lifting seat 503 is sleeved on the outer side of the fixed seat 502, a lifting cylinder 504 is installed between the fixed seat 502 and the lifting seat 503, a rotating bearing 505 is rotatably connected to the top of the outer wall of the lifting seat 503, a rectangular positioning column 506 is fixedly connected to the top center of the lifting seat 503, a plurality of shaping wheel discs 507 are sleeved on the rectangular positioning column 506, a threaded column 508 is fixedly connected to the top center of the rectangular positioning column 506, and a fixing nut 509 for fixing a plurality of shaping wheel discs 507 is threadedly connected to the outer wall of the threaded column 508, a rotating gear ring 510 is fixedly installed on the outer ring of the rotating bearing 505, a connecting arm 511 is fixedly connected to one side of the rotating gear ring 510, and a rotating bearing 505 is fixedly connected to the lifting seat 503. A second servo motor 512 is also installed, and a second driving gear 513 meshing with the rotating gear ring 510 is fixedly installed at the output end of the second servo motor 512. The bending and shaping mechanism 5 serves as a shaping mechanism for the bending radius. A plurality of shaping wheels 507 are sleeved on its rectangular positioning column 506. The size design of each shaping wheel 507 is different, so that it can adapt to the bending and shaping of steel pipes 9 of different specifications. In addition, since the plurality of shaping wheels 507 are designed to be stacked vertically, a lifting cylinder 504 is designed between the fixed seat 502 and the lifting seat 503, so that the position height of the shaping wheel 507 can be adjusted by the lifting cylinder 504, so that the corresponding shaping wheel 507 can be quickly adjusted into place. Furthermore, the movable slide 501 can be slidably adjusted on the sliding guide rail 403, and then the position of the entire mechanism in the horizontal direction can be adjusted according to the bending radius of the shaping wheel 507.

[0031] Furthermore, in this embodiment, the connecting arm 511 is designed as an L-shaped structure as a whole, so that the automatic adjustment mechanism 6 and the rotary bending mechanism 7 can be more conveniently installed on the connecting arm 511, and during the bending process, the second servo motor 512 drives the second drive gear 513 to rotate, and the second drive gear 513 drives the rotating ring gear 510 and the connecting arm 511 to rotate through the engagement between the gears, thereby driving the automatic adjustment mechanism 6 and the rotary bending mechanism 7 to rotate synchronously, so that the corresponding shaping wheel 507 can be cooperated to complete the bending of the steel pipe 9.

[0032] Regarding the automatic adjustment mechanism 6, refer to Fig.14, an automatic adjustment mechanism 6 is installed on the bending and shaping mechanism 5, and the automatic adjustment mechanism 6 includes a horizontal slide 601 slidably connected to the connecting arm 511, and a horizontal limit column 602 is fixedly connected to the vertical section of the connecting arm 511. A horizontal adjustment cylinder 603 is also fixedly installed on the connecting arm 511. The horizontal adjustment cylinder 603 is used to drive the horizontal slide 601 to move horizontally. A vertical adjustment cylinder 604 is also installed on the top inner surface of the horizontal slide 601. The automatic adjustment mechanism 6 is mainly used to adjust the position of the rotary bending mechanism 7 in the horizontal and vertical directions. During the feeding process of the steel pipe 9, the horizontal adjustment cylinder 603 will drive the horizontal slide 601 to move away from the shaping wheel 507 as a whole. When the feeding is completed, the horizontal adjustment cylinder 603 will drive the horizontal slide 601 to reset. At this time, the corresponding bending wheel 704 on the rotary bending mechanism 7 will cooperate with the corresponding shaping wheel 507 to complete the clamping of the side wall of the steel pipe 9.

[0033] Furthermore, in this embodiment, when processing steel pipes 9 of different specifications, after the position adjustment of the shaping wheel 507 is completed, the height of the entire rotary bending mechanism 7 needs to be adjusted by the vertical adjustment cylinder 604 so that the height of the bending wheel 704 can be consistent with the height of the corresponding shaping wheel 507.

[0034] Furthermore, in this embodiment, a first through hole corresponding to the horizontal limit column 602 is opened on the vertical section of the horizontal slide 601, and a second through hole is opened on one side of the top of the horizontal slide 601. The first through hole cooperates with the horizontal limit column 602, and the second through hole cooperates with the vertical limit column 711, thereby further ensuring the stability of the automatic adjustment mechanism 6 during the adjustment process, and at the same time, it can also bear and disperse the lateral shear force borne by the piston rod of the vertical adjustment cylinder 604 during the bending process.

[0035] Regarding the rotary bending mechanism 7, refer to Figure 14-15, a rotary bending mechanism 7 is installed on the automatic adjustment mechanism 6, which is used for bending and shaping the steel pipe 9; the rotary bending mechanism 7 includes a fixed frame 701 fixed to the top of the piston rod of the vertical adjustment cylinder 604, the interior of the fixed frame 701 is rotatably connected to a rotating frame 702, and a plurality of positioning plates 703 are fixedly connected to the peripheral side of the rotating frame 702, and a plurality of bending wheel discs 704 are also rotatably connected to the rotating frame 702, and the plurality of bending wheel discs 704 are respectively located between the plurality of positioning plates 703, and a driving mechanism for driving the rotating frame 7 is installed on the top of the fixed frame 701. 02 is rotated by a third servo motor 705, a positioning hole 706 is provided at the center of one side of the fixed frame 701, a positioning socket 707 is slidably installed on the inner side of the positioning hole 706, and the positioning socket 707 can be plugged into the outer side of the corresponding positioning plate 703, a magnetic column 708 is provided at the other end of the positioning socket 707, an electromagnet 709 is installed on the other side of the positioning hole 706, and a return spring 710 is installed between the magnetic column 708 and the electromagnet 709. The processing positions of the multiple bending wheels 704 on the rotating frame 702 can be adjusted by the third servo motor 705. The servo motor 705 is automatically adjusted, and the specifications and sizes of the multiple bending wheels 704 are matched one by one with the specifications and sizes of the multiple shaping wheels 507. When the positions of the multiple bending wheels 704 need to be adjusted, the power supply of the electromagnet 709 can be turned on. At this time, the end of the electromagnet 709 will generate a magnetic attraction, so that the magnetic attraction can be used to drive the positioning socket 707 to move toward the electromagnet 709, so that the positioning socket 707 is contracted as a whole into the positioning hole 706. At this time, the position of the bending wheel 704 can be adjusted by the third servo motor 705. After the position adjustment of the bending wheel 704 is completed, the power supply of the electromagnet 709 is disconnected. At this time, under the elastic reverse thrust of the reset spring 710, the slot at one end of the positioning socket 707 will be inserted into the corresponding positioning plate 703 in the rotating frame 702, so that the positioning socket 707 is used to complete the locking and fixation of the entire rotating frame 702. In the subsequent bending process, the connecting arm 511 drives the rotating bending mechanism 7 to rotate at a set angle. At this time, the bending wheel 704 can cooperate with the corresponding shaping wheel 507 to complete the bending processing of the steel pipe 9.

[0036] In this embodiment, a vertical limiting column 711 is fixedly connected to one side of the bottom of the fixing frame 701, and the bottom end of the vertical limiting column 711 passes through the second through hole.

[0037] This embodiment further, as Fig.16As shown, the automatic adjustment mechanism 6 can also complete the bending processing of large-radius steel pipes and tubes 9 by cooperating with the rotary bending mechanism 7. During specific operation, the distance between the bending wheel 704 and the shaping wheel 507 can be adjusted according to the bending radius requirement of the steel pipe and tube 9, and it is necessary to further adjust the angle between the entire rotary bending mechanism 7 and the steel pipe and tube 9 in the feeding direction. According to the distance and angle adjustment, the steel pipe and tube 9 is continuously pushed by the tube pushing mechanism 2 to complete the bending processing of different radii.

[0038] Furthermore, in this embodiment, a main controller 8 is fixedly installed on one side of the top of the main frame 1. The main controller 8 serves as an integrated control unit of the equipment. It can perform programmed management and control of the execution actions of each actuator through numerical control programming to ensure the processing accuracy of the fitness steel pipe during the processing, while also realizing the automation of the equipment.

[0039] The working principle of this embodiment is as follows. When the parameters of the equipment and the actuator are adjusted, the steel pipe material 9 to be processed can be placed in the positioning groove 205. At this time, the first servo motor 203 will start working according to the set program, and the output shaft of the first servo motor 203 will drive the ball screw 202 to rotate synchronously, and then the pushing block 207 on the pushing seat 204 can be used to push the steel pipe material 9 to move toward the bending and shaping mechanism 5; When the feeding is completed, the horizontal adjustment cylinder 603 will drive the bending wheel 704 to move toward the shaping wheel 507, thereby completing the clamping of the side wall of the steel pipe 9. At this time, according to the set bending angle, the second servo motor 512 drives the second driving gear 513 to rotate, and the second driving gear 513 drives the rotating gear ring 510 and the connecting arm 511 to rotate through the meshing between the gears, thereby driving the automatic adjustment mechanism 6 and the rotating bending mechanism 7 to rotate synchronously, so as to cooperate with the corresponding shaping wheel 507 to complete the bending of the steel pipe 9; The main frame 1 is also rotatably connected to a rotary adjustment mechanism 4, which can drive the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotary bending mechanism 7 to rotate synchronously, so that the steel pipe 9 can be kept stationary and the steel pipe can be bent at different angles and directions by rotating each bending actuator to meet the multi-directional and multi-angle bending processing requirements of the steel pipe.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A bending device for processing fitness steel pipes, comprising a main frame (1), characterized in that: A pipe pushing mechanism (2) is fixedly mounted on the top of the front end of the main frame (1), and a feed limiting mechanism (3) is fixedly mounted on the top of the main frame (1) for pushing the steel pipe (9) to be processed; The main frame (1) is also rotatably connected to a rotation adjustment mechanism (4), and a bending and shaping mechanism (5) is slidably mounted on the front end of the rotation adjustment mechanism (4); The bending and shaping mechanism (5) is equipped with an automatic adjustment mechanism (6), and the automatic adjustment mechanism (6) is equipped with a rotary bending mechanism (7) for bending and shaping the steel pipe (9); A main controller (8) is fixedly mounted on one side of the top of the main frame (1).

2. The bending device for fitness steel pipe processing according to claim 1 is characterized in that: The pipe pushing mechanism (2) comprises a pushing frame (201) fixedly mounted on the top of the main frame (1); a ball screw (202) is rotatably connected inside the pushing frame (201); a first servo motor (203) for driving the ball screw (202) to rotate is mounted at the rear end of the pushing frame (201); a pushing seat (204) is mounted on the ball screw (202); a ball nut seat matching the ball screw (202) is disposed inside the pushing seat (204); a positioning groove (205) is disposed at the top of the pushing frame (201); a through rectangular hole (206) is disposed at the bottom of the positioning groove (205); and a pushing block (207) is fixedly mounted at the front end of the pushing seat (204).

3. The bending device for fitness steel pipe processing according to claim 1 is characterized in that: The feed limiting mechanism (3) comprises a guide seat (301) fixedly mounted on the main frame (1), and a front end of the guide seat (301) is threadedly rotatably connected to a limiting tube (302).

4. The bending device for fitness steel pipe processing according to claim 1 is characterized in that: The rotary adjustment mechanism (4) comprises a rotary seat (401) rotatably connected between the main frame (1) and the feed limit mechanism (3); the front end of the rotary seat (401) is fixedly connected to a rotary frame (402); the bottom of the front end of the rotary frame (402) is fixedly connected to a sliding guide rail (403); a synchronous gear (404) is fixedly mounted on the outer wall of the rotary seat (401); a driving motor (405) is fixedly mounted on the front end of the bottom of the main frame (1); and a first driving gear (406) meshing with the synchronous gear (404) is fixedly mounted on the output end of the driving motor (405).

5. The bending device for fitness steel pipe processing according to claim 1 is characterized in that: The bending and shaping mechanism (5) comprises a movable slide (501) slidably mounted on the front end of the rotating adjustment mechanism (4); a fixed seat (502) is fixedly mounted on the top of the movable slide (501); a lifting seat (503) is sleeved on the outer side of the fixed seat (502); a lifting cylinder (504) is installed between the fixed seat (502) and the lifting seat (503); a rotating bearing (505) is rotatably connected to the top of the outer wall of the lifting seat (503); a rectangular positioning column (506) is fixedly connected to the center of the top of the lifting seat (503); and a plurality of shaping wheels (506) are sleeved on the rectangular positioning column (506). 07), a threaded column (508) is fixedly connected to the center of the top of the rectangular positioning column (506), and a fixing nut (509) for fixing a plurality of fixed wheel discs (507) is threadedly connected to the outer wall of the threaded column (508), a rotating ring gear (510) is fixedly installed on the outer ring of the rotating bearing (505), and a connecting arm (511) is fixedly connected to one side of the rotating ring gear (510), and a second servo motor (512) is also installed on the lifting seat (503), and a second driving gear (513) meshing with the rotating ring gear (510) is fixedly installed on the output end of the second servo motor (512).

6. The bending device for fitness steel pipe processing according to claim 5, characterized in that: The connecting arm (511) is designed as an L-shaped structure as a whole.

7. The bending device for fitness steel pipe processing according to claim 5 is characterized in that: The automatic adjustment mechanism (6) comprises a horizontal slide (601) slidably connected to a connecting arm (511); a horizontal limit column (602) is fixedly connected to a vertical section of the connecting arm (511); a horizontal adjustment cylinder (603) is also fixedly mounted on the connecting arm (511); the horizontal adjustment cylinder (603) is used to drive the horizontal slide (601) to move horizontally; and a vertical adjustment cylinder (604) is also mounted on the top inner surface of the horizontal slide (601).

8. The bending device for fitness steel pipe processing according to claim 7 is characterized in that: A first through hole corresponding to the horizontal limit column (602) is provided on the vertical section of the horizontal slide seat (601), and a second through hole is provided on one side of the top of the horizontal slide seat (601).

9. The bending device for fitness steel pipe processing according to claim 8, characterized in that: The rotary bending mechanism (7) comprises a fixed frame (701) fixed to the top of the piston rod of the vertical adjustment cylinder (604); the interior of the fixed frame (701) is rotatably connected to a rotary frame (702); a plurality of positioning plates (703) are fixedly connected to the peripheral side of the rotary frame (702); a plurality of bending wheel discs (704) are also rotatably connected to the rotary frame (702); the plurality of bending wheel discs (704) are respectively located between the plurality of positioning plates (703); a device for driving the rotary frame (702) to rotate is installed on the top of the fixed frame (701). A third servo motor (705) is provided for rotating in parallel, a positioning hole (706) is provided at the center of one side of the fixing frame (701), a positioning socket (707) is slidably installed on the inner side of the positioning hole (706), the positioning socket (707) can be plugged into the outer side of the corresponding positioning plate (703), a magnetic column (708) is provided at the other end of the positioning socket (707), an electromagnet (709) is installed on the other side of the positioning hole (706), and a return spring (710) is installed between the magnetic column (708) and the electromagnet (709).

10. The bending device for fitness steel pipe processing according to claim 9, characterized in that: A vertical limiting column (711) is fixedly connected to one side of the bottom of the fixing frame (701), and the bottom end of the vertical limiting column (711) passes through the second through hole.

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