A bending device for fitness steel pipe processing

Abstract

The present invention discloses a bending device for fitness steel pipe processing, belonging to the technical field of bending equipment. The bending device for fitness steel pipe processing includes a main frame. At the top of the front end of the main frame, a pipe pushing mechanism is fixedly installed. At the top of the main frame, a feeding limiting mechanism is fixedly installed for pushing the steel pipe to be processed. A rotation adjustment mechanism is also rotatably connected to the main frame, and a bending and shaping mechanism is slidably installed at the front end of the rotation adjustment mechanism. An automatic adjustment mechanism is installed on the bending and shaping mechanism, and a rotation bending mechanism is installed on the automatic adjustment mechanism for bending and shaping the steel pipe. A main controller is fixedly installed on one side of the top of the main frame. By designing an adjustable bending and shaping mechanism, an automatic adjustment mechanism and a rotation bending mechanism, the present invention can complete the bending processing of steel pipes of different specifications without frequently replacing the bending module, which not only improves the work efficiency but also ensures the processing accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of bending equipment, and particularly relates to a bending device 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, and is widely used in industries such as construction, manufacturing, fitness equipment, furniture, and automobiles. Currently, the most widely used steel pipe bending equipment in the market is the numerically controlled pipe bender (CNC pipe bender). This equipment uses a numerical control system for operation and can achieve high-precision bending. The numerical control bender can set parameters such as angle, radius, and bending length according to needs, is suitable for complex bending tasks, has a high level of automation, is suitable for mass production, and can ensure the consistency and accuracy of bending.

[0003] Steel pipes are an important part of fitness equipment, which bear the work of main support and as an execution component. With the increasing richness of fitness equipment types, there have emerged many fitness equipment with special structural designs in the market. Due to their relatively special design structures, the steel pipe structures as their main parts also need to be bent and processed correspondingly according to their design schemes. Currently, there are various types of steel pipe bending equipment in the market, but the structural designs of most existing steel pipe bending equipment are relatively simple. Although they can complete bending processing at different angles using numerical control programs, usually a set of bending equipment can only process steel pipes of one specification. If steel pipes of different specifications need to be processed, generally the entire set of bending modules needs to be replaced. Therefore, in the actual processing process, to a certain extent, it affects the overall production and processing efficiency of the equipment. In addition, frequent disassembly and replacement of the bending modules will also affect the bending accuracy of the steel pipes to a certain extent. Summary of the Invention

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

[0005] The technical solution adopted to solve the above technical problem is: A bending device for processing fitness steel pipes, including a main frame. At the front top of the main frame, a pipe pushing mechanism is fixedly installed, and at the top of the main frame, a feeding limiting mechanism is fixedly installed for pushing the steel pipe to be processed.

[0006] A rotation adjustment mechanism is also rotatably connected to the main frame, and a bending and shaping mechanism is slidably installed at the front end of the rotation adjustment mechanism.

[0007] An automatic adjustment mechanism is installed on the bending and shaping mechanism, and a rotation bending mechanism is installed on the automatic adjustment mechanism for bending and shaping the steel pipe.

[0008] On one side of the top of the main frame, a main controller is fixedly installed. As the integrated control unit of the equipment, the main controller can programmatically manage and control the execution actions of each actuator through numerical control programming to ensure the processing accuracy of the fitness steel pipe during the processing process and also realize the automation of the equipment.

[0009] Furthermore, the pipe pushing mechanism includes a pushing frame fixedly installed on the top of the main frame. A ball screw is rotatably connected inside the pushing frame. A first servo motor for driving the ball screw to rotate is installed at the rear end of the pushing frame. 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 formed at the top of the pushing frame, and a through rectangular hole is formed at the bottom of the positioning groove. A pushing block is fixedly installed at the front end of the pushing seat.

[0010] Through the above technical solution, the pipe pushing mechanism is mainly used to automatically push the steel pipe to be processed during the processing process. After the steel pipe to be processed is placed in the positioning groove, the first servo motor will start working according to the set program. The output shaft of the first servo motor will drive the ball screw to rotate synchronously, and then can drive the pushing seat to move in a fixed direction, and then can use the pushing block on the pushing seat to push the steel pipe towards the bending and shaping mechanism.

[0011] Furthermore, the feeding limiting mechanism includes a guiding seat fixedly installed on the main frame, and a limiting tube is threadedly connected to the center of the front end of the guiding seat.

[0012] Through the above technical solution, the feeding limiting mechanism is mainly used for limiting during the movement of the steel pipe. During the pushing process, one end of the steel pipe will pass through the guiding seat and the limiting tube, and the other end of the limiting tube extends to a position close to the rotation adjustment mechanism, so as to play a role in limiting and auxiliary positioning for 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 limiting tube is threadedly connected to the front end of the guiding seat. When processing steel pipes of different specifications, the limiting tube matching the corresponding specification can be replaced to ensure the stability and reliability of the steel pipe during the processing process.

[0013] Furthermore, the rotation adjustment mechanism includes a rotating seat rotatably connected between the main frame and the feeding limiting mechanism. A rotating frame is fixedly connected to the front end of the rotating seat. A sliding guide rail is fixedly connected to the bottom of the front end of the rotating frame. A synchronous gear is fixedly installed on the outer wall of the rotating seat. A driving motor is fixedly installed at the front end of the bottom of the main frame, and a first driving gear meshing with the synchronous gear is fixedly installed at the output end of the driving motor.

[0014] Through the above technical solution, the rotation adjustment mechanism is used to drive the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously. Thus, when the steel pipe remains stationary, the steel pipe can be bent at different angles and directions by rotating each bending actuator to meet the bending processing requirements of the steel pipe in multiple directions and at multiple angles. During actual operation, 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 meshing between gears. Since the synchronous gear is fixedly installed on the rotating seat, the rotating seat, the rotating frame, the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism can be driven 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.

[0015] Further, the bending and shaping mechanism includes a moving slide seat slidably installed at the front end of the rotation adjustment mechanism. A fixed seat is fixedly installed on the top of the moving slide seat. A lifting seat is sleeved outside the fixed seat. A lifting cylinder is installed between the fixed seat and the lifting seat. The top of the outer wall of the lifting seat is rotatably connected to a rotary bearing. The center of the top of the lifting seat is fixedly connected to a rectangular positioning column. A plurality of shaping wheel discs are sleeved on the rectangular positioning column. The center of the top of the rectangular positioning column is fixedly connected to a threaded column. A fixing nut for fixing a plurality of shaping wheel discs is threadedly connected to the outer wall of the threaded column. A rotary gear ring is fixedly installed on the outer ring of the rotary bearing. A connecting arm is fixedly connected to one side of the rotary gear ring. A second servo motor is also installed on the lifting seat. The output end of the second servo motor is fixedly installed with a second driving gear meshing with the rotary gear ring.

[0016] Through the above technical solution, as the shaping mechanism for the bending radius, a plurality of shaping wheel discs are sleeved on the rectangular positioning column of the bending and shaping mechanism, and the size design of each shaping wheel disc is different, so as to adapt to the bending and shaping of steel pipe materials of different specifications. In addition, since a plurality of shaping wheel discs are designed to be vertically stacked, a lifting cylinder is designed between the fixed seat and the lifting seat, so that the position height of the shaping wheel disc can be adjusted by the lifting cylinder, so that the corresponding shaping wheel disc can be quickly adjusted in place. Further, the moving slide seat can be slidably adjusted on the sliding guide rail, and then the position of the whole mechanism in the horizontal direction can be adjusted according to the bending radius of the shaping wheel disc.

[0017] Further, the connecting arm is integrally designed in an L-shaped structure.

[0018] Through the above technical solution, it is thus possible to more conveniently install the automatic adjustment mechanism and the rotary bending mechanism on the connecting arm. And during the bending process, the second servo motor drives the second driving gear to rotate, and the second driving gear drives the rotary gear ring and the connecting arm to rotate through the meshing between gears, so as to drive the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously, and thus cooperate with the corresponding shaping wheel disc to complete the bending of the steel pipe.

[0019] Further, the automatic adjustment mechanism includes a horizontal sliding seat slidably connected to the connecting arm. A horizontal limiting post 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 sliding seat to move horizontally. A vertical adjustment cylinder is also installed on the inner surface of the top of the horizontal sliding seat.

[0020] Through the above technical solution, the automatic adjustment mechanism is mainly used to adjust the position of the rotary bending mechanism in the horizontal and vertical directions. During the feeding process of the steel pipe, the horizontal adjustment cylinder will drive the entire horizontal sliding seat away from the shaping wheel disc. When the feeding is completed, the horizontal adjustment cylinder will drive the horizontal sliding seat to reset. At this time, the corresponding bending wheel disc on the rotary bending mechanism will cooperate with the corresponding shaping wheel disc to complete the clamping of the side wall of the steel pipe. Further, when processing steel pipes of different specifications, after the position of the shaping wheel disc is adjusted, at this time, the vertical adjustment cylinder is required to adjust the height of the entire rotary bending mechanism so that the height of the bending wheel disc can be consistent with the height of the corresponding shaping wheel disc.

[0021] Further, a first through hole corresponding to the horizontal limiting post is formed in the vertical section of the horizontal sliding seat, and a second through hole is formed in one side of the top of the horizontal sliding seat.

[0022] Through the above technical solution, the first through hole cooperates with the horizontal limiting post, and the second through hole cooperates with the vertical limiting post, so as to further ensure the stability of the automatic adjustment mechanism during the adjustment process, and at the same time can also bear and disperse the lateral shear force borne by the piston rod of the vertical adjustment cylinder during the bending process.

[0023] Further, the rotary bending mechanism includes a fixed frame fixed to the top of the piston rod of the vertical adjustment cylinder. A rotary frame is rotatably connected inside the fixed frame. A plurality of positioning plates are fixedly connected to the periphery of the rotary frame. A plurality of bending discs are also rotatably connected to the rotary frame. The plurality of bending discs are respectively located between the plurality of positioning plates. A third servo motor for driving the rotary 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 inside the positioning hole. The positioning socket can be inserted outside the corresponding positioning plate. A magnetic attraction column is provided at the other end of the positioning socket. An electromagnet is installed on the other side of the positioning hole. A return spring is installed between the magnetic attraction column and the electromagnet.

[0024] Through the above technical solution, the processing positions of the plurality of bending discs on the rotary frame can be automatically adjusted by the third servo motor. The specification sizes of the plurality of bending discs are in one-to-one correspondence with the specification sizes of the plurality of shaping discs. When it is necessary to adjust the positions of the plurality of bending discs, the power supply of the electromagnet can be turned on. At this time, a magnetic attraction force will be generated at the end of the electromagnet, so that the positioning socket can be driven to move towards the electromagnet by the magnetic attraction force, and the whole positioning socket can be contracted into the positioning hole. At this time, the position of the bending disc can be adjusted by the third servo motor. After the position adjustment of the bending disc is completed, the power supply of the electromagnet is disconnected. At this time, under the elastic reaction force of the return spring, one end slot of the positioning socket will be inserted into the corresponding positioning plate on the rotary frame, so as to complete the locking and fixing of the whole rotary frame by using the positioning socket. During the subsequent bending process, the connecting arm drives the rotary bending mechanism to rotate at a set angle. At this time, the bending disc can cooperate with the corresponding shaping disc to complete the bending processing of the steel pipe.

[0025] Further, one side of the bottom of the fixed frame is fixedly connected with a vertical limit column, and the bottom end of the vertical limit column penetrates through the second through hole.

[0026] The beneficial effects of the present invention are as follows: (1) By designing an adjustable bending and shaping mechanism, an automatic adjustment mechanism and a rotary bending mechanism, the present invention can complete the bending processing of steel pipes of different specifications without frequently replacing the bending module, which not only improves the work efficiency, but also ensures the processing accuracy; (2) By designing an automatic adjustment mechanism and a rotary bending mechanism, the present invention can adjust the distance between the bending disc and the shaping disc according to the bending radius requirement of the steel pipe. According to the distance and angle adjustment, the bending processing of different radii can be completed; (3) By designing a rotary adjustment mechanism, the present invention can drive the bending and shaping mechanism, the automatic adjustment mechanism and the rotary bending mechanism to rotate synchronously during work, so that the steel pipe can be bent at different angles and directions by rotating each bending execution mechanism while the steel pipe remains stationary, so as to meet the bending processing requirements of the steel pipe in multiple directions and at multiple angles. Description of the Drawings

[0027] Figure 1 is the structural diagram of the first perspective of the present invention;

[0028] Figure 2 is the structural diagram of the second perspective of the present invention;

[0029] Figure 3 is the structural diagram of the third perspective of the present invention;

[0030] Figure 4 is the front view of the present invention;

[0031] Figure 5 is the right view of the present invention;

[0032] Figure 6 is the schematic installation structure diagram of the feeding limit mechanism of the present invention;

[0033] Figure 7 is the front view of the rotation adjustment mechanism of the present invention;

[0034] Figure 8 is Figure 7 the sectional view taken along the line A-A in

[0035] Figure 9 is the schematic structural diagram of the first perspective of the pipe pushing mechanism of the present invention;

[0036] Figure 10 is the schematic structural diagram of the second perspective of the pipe pushing mechanism of the present invention;

[0037] Figure 11 is the schematic structural diagram of the first perspective of the bending and shaping mechanism of the present invention;

[0038] Figure 12 is the schematic structural diagram of the second perspective of the bending and shaping mechanism of the present invention;

[0039] Figure 13 is the sectional view of the bending and shaping mechanism of the present invention;

[0040] Figure 14 is the schematic structural diagram of the automatic adjustment mechanism and the rotary bending mechanism of the present invention;

[0041] Figure 15 is Figure 14 the sectional view taken along the line B-B in

[0042] Figure 16 is the state diagram of the large-radius bending of steel pipe.

[0043] Reference 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 limiting mechanism; 301, guiding seat; 302, limiting pipe; 4, rotating and adjusting 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; 507, shaping wheel disc; 508, threaded column; 509, fixed nut; 510, rotating gear ring; 511, connecting arm; 512, second servo motor; 513, second driving gear; 6, automatic adjusting mechanism; 601, horizontal slide; 602, horizontal limiting column; 603, horizontal adjusting cylinder; 604, vertical adjusting cylinder; 7, rotating and bending mechanism; 701, fixed frame; 702, rotating frame; 703, positioning plate; 704, bending wheel disc; 705, third servo motor; 706, positioning hole; 707, positioning socket; 708, magnetic attraction column; 709, electromagnet; 710, return spring; 711, vertical limiting column; 8, main controller; 9, steel pipe. Detailed implementation manners

[0044] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to 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 used to limit the present invention.

[0045] As Figures 1-16As shown in the figure, a bending device for fitness steel pipe processing in this embodiment includes a main frame 1. At the top of the front end of the main frame 1, a pipe pushing mechanism 2 is fixedly installed. The pipe pushing mechanism 2 includes a pushing frame 201 fixedly installed on the top of the main frame 1. Inside the pushing frame 201, a ball screw 202 is rotatably connected. At the rear end of the pushing frame 201, a first servo motor 203 for driving the ball screw 202 to rotate is installed. A pushing seat 204 is installed on the ball screw 202. Inside the pushing seat 204, a ball nut seat matching the ball screw 202 is provided. A positioning groove 205 is opened at the top of the pushing frame 201. A through rectangular hole 206 is opened at the bottom of the positioning groove 205. A pushing block 207 is fixedly installed at the front end of the pushing seat 204. The pipe pushing mechanism 2 is mainly used to automatically push the steel pipe 9 to be processed during the processing. After the steel pipe 9 to be processed is placed in the positioning groove 205, the first servo motor 203 will start working according to the set program. The output shaft of the first servo motor 203 will drive the ball screw 202 to rotate synchronously, and then the pushing seat 204 can be driven to move in a specific direction. Then, the pushing block 207 on the pushing seat 204 can be used to push the steel pipe 9 towards the bending and shaping mechanism 5.

[0046] Regarding the feeding limit mechanism 3, refer to Figures 1-10 , a feeding limit mechanism 3 is fixedly installed on the top of the main frame 1 for pushing the steel pipe 9 to be processed; the feeding limit mechanism 3 includes a guiding seat 301 fixedly installed on the main frame 1. A limit pipe 302 is threadedly connected to the center of the front end of the guiding seat 301. The feeding limit mechanism 3 is mainly used for limiting during the movement of the steel pipe 9. During the pushing process, one end of the steel pipe 9 will pass through the guiding seat 301 and the limit pipe 302, and the other end of the limit pipe 302 extends to a position close to the rotation adjustment mechanism 4, so as to play a role in limiting and assisting positioning for the remaining part of the steel pipe 9 during the bending process, to prevent the steel pipe from deforming at the starting part of the bending. In addition, the limit pipe 302 is threadedly connected to the front end of the guiding seat 301. When processing steel pipes 9 of different specifications, the limit pipe 302 matching the specification can be replaced to ensure the stability and reliability of the steel pipe 9 during the processing.

[0047] Regarding the rotation adjustment mechanism 4, refer to Figures 1-8, a rotary adjustment mechanism 4 is also rotatably connected to the main frame 1. The rotary adjustment mechanism 4 includes a rotary seat 401 rotatably connected between the main frame 1 and the feeding limit mechanism 3. The front end of the rotary seat 401 is fixedly connected with a rotary frame 402. The bottom of the front end of the rotary frame 402 is fixedly connected with a sliding guide rail 403. A synchronous gear 404 is fixedly installed on the outer wall of the rotary seat 401. The front end of the bottom of the main frame 1 is fixedly installed with a driving motor 405. The output end of the driving motor 405 is fixedly installed with a first driving gear 406 meshing with the synchronous gear 404. The rotary adjustment mechanism 4 is used to drive the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotary bending mechanism 7 to rotate synchronously. Thus, when the steel pipe 9 remains stationary, the steel pipe can be bent at different angles and in different directions by rotating each bending actuator, so as to meet the bending processing requirements of the steel pipe in multiple directions and at multiple angles. During actual work, the output end of the driving motor 405 drives the first driving gear 406 to rotate, and then drives the synchronous gear 404 to rotate synchronously through the meshing between gears. Since the synchronous gear 404 is fixedly installed on the rotary seat 401, the rotary seat 401, the rotary frame 402, the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotary bending mechanism 7 can be driven to rotate synchronously. Further, a sliding guide rail 403 is also provided at the bottom of the front end of the rotary 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.

[0048] Regarding the bending and shaping mechanism 5, refer to Figures 1-15, a bending and shaping mechanism 5 is slidably installed at the front end of the rotation adjustment mechanism 4; the bending and shaping mechanism 5 includes a moving slide base 501 slidably installed at the front end of the rotation adjustment mechanism 4, a fixed base 502 is fixedly installed on the top of the moving slide base 501, a lifting seat 503 is sleeved outside the fixed base 502, a lifting cylinder 504 is installed between the fixed base 502 and the lifting seat 503, a rotary 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, a plurality of shaping wheel discs 507 are sleeved on the rectangular positioning column 506, 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 shaping wheel discs 507 is threadedly connected to the outer wall of the threaded column 508. A rotary gear ring 510 is fixedly installed on the outer ring of the rotary bearing 505, a connecting arm 511 is fixedly connected to one side of the rotary gear ring 510, a second servo motor 512 is further installed on the lifting seat 503, and a second driving gear 513 meshing with the rotary gear ring 510 is fixedly installed at the output end of the second servo motor 512. As a shaping mechanism for the bending radius, a plurality of shaping wheel discs 507 are sleeved on the rectangular positioning column 506 of the bending and shaping mechanism 5, and the size design of each shaping wheel disc 507 is different, so as to adapt to the bending and shaping of steel pipe materials 9 of different specifications. In addition, since a plurality of shaping wheel discs 507 adopt a vertical stacking design, a lifting cylinder 504 is designed between the fixed base 502 and the lifting seat 503, so that the position height of the shaping wheel discs 507 can be adjusted by the lifting cylinder 504, so as to quickly adjust the corresponding shaping wheel discs 507 in place. Further, the moving slide base 501 can be slidably adjusted on the sliding guide rail 403, and then the position of the whole mechanism in the horizontal direction can be adjusted according to the bending radius of the shaping wheel discs 507.

[0049] In this embodiment, further, the connecting arm 511 is integrally designed in an L-shaped structure, 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 driving gear 513 to rotate, and the second driving gear 513 drives the rotary gear ring 510 and the connecting arm 511 to rotate through the meshing between gears, and then the automatic adjustment mechanism 6 and the rotary bending mechanism 7 can be driven to rotate synchronously, so as to cooperate with the corresponding shaping wheel discs 507 to complete the bending of the steel pipe material 9.

[0050] Regarding the automatic adjustment mechanism 6, refer to Figure 14, an automatic adjustment mechanism 6 is installed on the bending and shaping mechanism 5. The automatic adjustment mechanism 6 includes a horizontal sliding seat 601 slidably connected to the connecting arm 511. A horizontal limiting 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 sliding seat 601 to move horizontally. A vertical adjustment cylinder 604 is further installed on the inner surface of the top of the horizontal sliding seat 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 entire horizontal sliding seat 601 away from the shaping wheel disc 507. When the feeding is completed, the horizontal adjustment cylinder 603 will drive the horizontal sliding seat 601 to reset. At this time, the corresponding bending wheel disc 704 on the rotary bending mechanism 7 will cooperate with the corresponding shaping wheel disc 507 to complete the clamping of the side wall of the steel pipe 9.

[0051] Furthermore, in this embodiment, when processing steel pipes 9 of different specifications, after the position of the shaping wheel disc 507 is adjusted, at this time, the vertical adjustment cylinder 604 is required to adjust the height of the entire rotary bending mechanism 7 so that the height of the bending wheel disc 704 can be kept consistent with the height of the corresponding shaping wheel disc 507.

[0052] Furthermore, in this embodiment, a first through hole corresponding to the horizontal limiting column 602 is provided on the vertical section of the horizontal sliding seat 601, and a second through hole is provided on one side of the top of the horizontal sliding seat 601. The first through hole cooperates with the horizontal limiting column 602, and the second through hole cooperates with the vertical limiting column 711, which can further ensure the stability of the automatic adjustment mechanism 6 during the adjustment process, and can also bear and disperse the lateral shear force borne by the piston rod of the vertical adjustment cylinder 604 during the bending process.

[0053] Regarding the rotary bending mechanism 7, refer to Figures 14-15, an automatic adjustment mechanism 6 is installed with a rotary bending mechanism 7 for bending and shaping a 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. Inside the fixed frame 701, a rotary frame 702 is rotatably connected. A plurality of positioning plates 703 are fixedly connected to the peripheral side of the rotary frame 702. A plurality of bending discs 704 are also rotatably connected to the rotary frame 702. The plurality of bending discs 704 are respectively located between the plurality of positioning plates 703. A third servo motor 705 for driving the rotary frame 702 to rotate is installed on the top of the fixed frame 701. A positioning hole 706 is opened at the center of one side of the fixed frame 701. A positioning socket 707 is slidably installed inside the positioning hole 706. The positioning socket 707 can be inserted outside the corresponding positioning plate 703. A magnetic attraction 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. A return spring 710 is installed between the magnetic attraction column 708 and the electromagnet 709. The processing positions of the plurality of bending discs 704 on the rotary frame 702 can be automatically adjusted by the third servo motor 705. The specification sizes of the plurality of bending discs 704 are in one-to-one correspondence with the specification sizes of the plurality of shaping discs 507. When it is necessary to adjust the positions of the plurality of bending discs 704, the power supply of the electromagnet 709 can be turned on. At this time, a magnetic attraction force will be generated at the end of the electromagnet 709, so that the positioning socket 707 can be driven to move towards the electromagnet 709 by the magnetic attraction force, and the whole positioning socket 707 can be contracted into the positioning hole 706. At this time, the positions of the bending discs 704 can be adjusted by the third servo motor 705. After the positions of the bending discs 704 are adjusted, the power supply of the electromagnet 709 is disconnected. At this time, under the elastic reaction force of the return spring 710, one end slot of the positioning socket 707 will be inserted into the corresponding positioning plate 703 on the rotary frame 702, so as to complete the locking and fixing of the whole rotary frame 702 by using the positioning socket 707. During the subsequent bending process, the rotary bending mechanism 7 is driven by the connecting arm 511 to rotate at a set angle. At this time, the bending discs 704 can cooperate with the corresponding shaping discs 507 to complete the bending process of the steel pipe 9.

[0054] In a further embodiment of the present example, a vertical limit post 711 is fixedly connected to one side of the bottom of the fixed frame 701, and the bottom end of the vertical limit post 711 penetrates through the second through hole.

[0055] In a further embodiment of the present example, as Figure 16As shown, the automatic adjustment mechanism 6, in cooperation with the rotary bending mechanism 7, can also complete the bending process of large-radius steel pipe 9. During specific operations, the distance between the bending wheel disc 704 and the shaping wheel disc 507 can be adjusted according to the bending radius requirement of the steel pipe 9. Moreover, the angle of the entire rotary bending mechanism 7 in the feeding direction of the steel pipe 9 needs to be further adjusted. Based on the distance and angle adjustments, and by continuously pushing the steel pipe 9 through the pipe pushing mechanism 2, the bending process with different radii can be completed.

[0056] Furthermore, in this embodiment, a main controller 8 is fixedly installed on one side of the top of the main frame 1. As the integrated control unit of the equipment, the main controller 8 can manage and control the execution actions of each actuator in a programmed manner through numerical control programming to ensure the processing accuracy of the fitness steel pipe during the processing process and also realize the automation of the equipment.

[0057] The working principle of this embodiment is as follows. During operation, after the parameters of the equipment and the actuators are adjusted, the steel pipe 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. The output shaft of the first servo motor 203 will drive the ball screw 202 to rotate synchronously, and then the push block 207 on the push seat 204 can be used to push the steel pipe 9 towards the bending and shaping mechanism 5.

[0058] After the feeding is completed, the horizontal adjustment cylinder 603 will drive the bending wheel disc 704 to move towards the shaping wheel disc 507 to complete 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 gears, and then can drive the automatic adjustment mechanism 6 and the rotary bending mechanism 7 to rotate synchronously, so as to cooperate with the corresponding shaping wheel disc 507 to complete the bending of the steel pipe 9.

[0059] A rotary adjustment mechanism 4 is also rotatably connected to the main frame 1. The rotary adjustment mechanism 4 can drive the bending and shaping mechanism 5, the automatic adjustment mechanism 6 and the rotary bending mechanism 7 to rotate synchronously, so that when the steel pipe 9 remains stationary, the steel pipe can be bent at different angles and directions by rotating each bending actuator to meet the bending processing requirements of the steel pipe in multiple directions and at multiple angles.

[0060] The above 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 fitness steel pipe processing, comprising a main frame (1), characterized in that: At the top of the front end of the main frame (1), a pipe pushing mechanism (2) is fixedly installed. At the top of the main frame (1), a feeding limiting mechanism (3) is fixedly installed for pushing the steel pipe (9) to be processed. A rotation adjustment mechanism (4) is also rotatably connected to the main frame (1). The rotation adjustment mechanism (4) includes a rotating seat (401) rotatably connected between the main frame (1) and the feeding limiting mechanism (3). The front end of the rotating seat (401) is fixedly connected to a rotating frame (402). The bottom of the front end of the rotating frame (402) is fixedly connected to a sliding guide rail (403). A synchronous gear (404) is fixedly installed on the outer wall of the rotating seat (401). At the front end of the bottom of the main frame (1), a driving motor (405) is fixedly installed. The output end of the driving motor (405) is fixedly installed with a first driving gear (406) meshing with the synchronous gear (404). A bending and shaping mechanism (5) is slidably installed at the front end of the rotation adjustment mechanism (4). The bending and shaping mechanism (5) includes a moving slide base (501) slidably installed at the front end of the rotation adjustment mechanism (4). A fixed seat (502) is fixedly installed on the top of the moving slide base (501). A lifting seat (503) is sleeved outside 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). The center of the top of the lifting seat (503) is fixedly connected to a rectangular positioning column (506). A plurality of shaping wheel discs (507) are sleeved on the rectangular positioning column (506). The center of the top of the rectangular positioning column (506) is fixedly connected to a threaded column (508). 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). A second servo motor (512) is also installed on the lifting seat (503). The output end of the second servo motor (512) is fixedly installed with a second driving gear (513) meshing with the rotating gear ring (510). An automatic adjustment mechanism (6) is installed on the bending and shaping mechanism (5). The automatic adjustment mechanism (6) includes a horizontal slide base (601) slidably connected to the connecting arm (511). A horizontal limiting 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 base (601) to move horizontally. A vertical adjustment cylinder (604) is also installed on the inner surface of the top of the horizontal slide base (601). A rotary bending mechanism (7) is installed on the automatic adjustment mechanism (6) 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). A rotary frame (702) is rotatably connected inside the fixed frame (701). A plurality of positioning plates (703) are fixedly connected to the peripheral side of the rotary frame (702). A plurality of bending discs (704) are also rotatably connected to the rotary frame (702). The plurality of bending discs (704) are respectively located between the plurality of positioning plates (703). A third servo motor (705) for driving the rotary frame (702) to rotate is installed on the top of the fixed frame (701). A positioning hole (706) is opened at the center of one side of the fixed frame (701). A positioning socket (707) is slidably installed inside the positioning hole (706). The positioning socket (707) can be inserted outside the corresponding positioning plate (703). A magnetic attraction 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). A return spring (710) is installed between the magnetic attraction column (708) and the electromagnet (709). A main controller (8) is fixedly installed on one side of the top of the main frame (1).

2. The bending device for processing fitness steel pipes according to claim 1, characterized in that, The pipe pushing mechanism (2) includes a pushing frame (201) fixedly installed 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 installed at the rear end of the pushing frame (201). A pushing seat (204) is installed on the ball screw (202). A ball nut seat matching the ball screw (202) is provided inside the pushing seat (204). A positioning groove (205) is opened at the top of the pushing frame (201). A through rectangular hole (206) is opened at the bottom of the positioning groove (205). A pushing block (207) is fixedly installed at the front end of the pushing seat (204).

3. The bending device for fitness steel pipe processing according to claim 1, characterized in that, The feeding limiting mechanism (3) includes a guiding seat (301) fixedly installed on the main frame (1). A limiting tube (302) is rotatably connected to the front end of the guiding seat (301) by threads.

4. The bending device for fitness steel pipe processing according to claim 1, wherein, The connecting arm (511) is designed in an overall L-shaped structure.

5. The bending device for fitness steel pipe processing according to claim 1, characterized in that, A first through hole corresponding to the horizontal limiting column (602) is opened on the vertical section of the horizontal sliding seat (601), and a second through hole is opened on one side of the top of the horizontal sliding seat (601).

6. The bending device for fitness steel pipe processing according to claim 1, characterized in that, A vertical limiting column (711) is fixedly connected to one side of the bottom of the fixed frame (701), and the bottom end of the vertical limiting column (711) penetrates through the second through hole.

Images