Multi-station cold bending numerical control pipe bending machine
By designing a multi-station cold bending CNC pipe bending machine, the problems of poor flexibility of traditional pipe bending machines and excessive deformation of pipes are solved, efficient bending and deformation detection are achieved, and the quality of pipe bending is improved.
Patent Information
- Application Number
- CN202510447003.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-05-13
AI Technical Summary
Traditional pipe bending machines have poor flexibility, and the formed pipes are prone to excessive deformation, making it difficult to detect the deformation of the outer wall.
A multi-station cold bending CNC pipe bending machine is designed, adopting a modular design, including feeding devices, bending devices, finishing devices, etc. By adjusting the feeding angle, bending angle and clamping force, flexible bending and deformation detection of the pipe is achieved.
It improves the flexibility and adaptability of the pipe bending machine, reduces excessive deformation of the pipe, and can detect the deformation of the outer wall of the pipe in real time to ensure the quality of the pipe bending.
Smart Images
Figure CN119972887A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pipe processing, in particular to a multi-station cold-bending CNC pipe bender. Background Art
[0002] Pipe bending machines are roughly divided into CNC pipe bending machines, hydraulic pipe bending machines, etc., which are used in pipeline laying and repair in power construction, highway and railway construction, bridges, ships, etc.; Traditional pipe bending machines can only bend pipes of specific sizes at fixed angles due to their fixed structure. The internal structure of the equipment is fixed, resulting in poor versatility and adaptability of the equipment. At the same time, the outer wall of the pipe formed by sliding extrusion is easily overloaded and deformed, which cannot be directly detected by the naked eye. Summary of the invention
[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a multi-station cold-bending CNC pipe bender, which solves the problem that traditional pipe bender has poor flexibility and the formed pipe is prone to excessive deformation.
[0004] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-station cold bending CNC pipe bending machine, comprising a fixed plate, the front side of the fixed plate is rotatably connected to a feeding device, a bending device is arranged on the left side of the feeding device, the fixed plate is fixed to the outside, then, the metal pipe to be bent is inserted into the inside of the feeding device from the right side of the fixed plate, the feeding device clamps the pipe, and the pipe is transported to the inside of the bending device by adjusting the feeding angle of the pipe, a finishing device is arranged on the left side of the bending device, the bending device comprises a top adjusting device, a bottom adjusting device is arranged at the bottom of the top adjusting device, the pipe then enters the inside of the bending device, under the extrusion of the top adjusting device and the bottom adjusting device, the feeding device pushes the pipe to bend while moving forward, and the bent pipe then enters the inside of the finishing device; The feeding device includes a rotating plate, a connecting spring is slidably connected in the wall of the rotating plate, the right end of the connecting spring is fixedly connected to a sliding block, the outer surface of the sliding block is rotatably connected to a push rod, and the right end of the push rod is rotatably connected to a driving wheel. The position of the sliding block and the angle of the push rod are controlled by adjusting the length of the connecting spring, thereby controlling the clamping force of the driving wheel. The rotation of the rotating plate can adjust the entry angle of the pipe feeding, and a supporting plate is provided on the right side of the driving wheel. The inner surface of the supporting plate is threadedly connected to an adjusting rod, and the top of the adjusting rod is rotatably connected to a clamping plate. Before the driving wheel feeds into the equipment, the adjusting rod is rotated, and under the action of the thread of the supporting plate, the adjusting rod adjusts the height of the clamping plate. In this process, the outer surface of the ball is rollingly connected to the outer surface of the pipe, and the upper surface of the clamping plate is rotatably connected to the ball.
[0005] Preferably, the outer surface of the slider is slidably connected to the inner surface of the rotating plate. After the external shaping is completed inside the sorting device, it is discharged from the left side of the fixed plate to the outside of the equipment. The pipe bending is completed. A modular design is adopted to facilitate disassembly and assembly. The outer surface of the driving wheel is slidably connected to the inner surface of the rotating plate. The outer surface of the support plate is fixedly connected to the front of the rotating plate. The feeding of pipes of different diameters can be adapted by adjusting the distance between the driving wheel and the clamping plate. The clamping plate prevents the pipe from shaking when driven by the driving wheel. The back side of the rotating plate is rotatably connected to the outer surface of the fixed plate.
[0006] Preferably, the bottom adjusting device comprises a card plate, the upper surface of the card plate is fixedly connected with a compression spring, and the left and right sides of the compression spring are provided with limiting devices. Before the equipment is used, the position of the limiting device is controlled according to the required bending angle, and the upper surface of the limiting device is movably connected with the bottom plate. When the limiting device slides upward along the inner surface of the card plate, the compression spring stretches, the bending curvature of the bottom plate increases, and the bending angle of the pipe increases. Conversely, the bending angle of the pipe decreases. The inner surface of the bottom plate is rotatably connected with a roller, and the lower surface of the bottom plate is fixedly connected to the top end of the compression spring. The bottom adjusting device is affected by the bending angle of the top adjusting device, and the two cooperate with each other to clamp the pipe together. The outer surface of the limiting device is slidably connected to the inner surface of the card plate. During the bending process, the roller rotates to convert the sliding friction into rolling friction, thereby reducing the resistance to bending and feeding. The back side of the card plate is fixedly connected to the front side of the fixed plate, and the outer surface of the fixed plate is fixedly connected to the outer surfaces at both ends of the bottom plate.
[0007] Preferably, the limiting device includes a plug plate, the outer surface of the plug plate is slidably connected to the inner surface of the card plate, the inner surface of the plug plate is threadedly connected to a rotating rod, a telescopic device is arranged on the outside of the rotating rod, the outer surface of the plug plate slides along the inner surface of the card plate, the position of the telescopic device is controlled by rotating the rotating rod, and the outer surface of the telescopic device is movably connected to the inner surface of the plug plate.
[0008] Preferably, the telescopic device includes a conical block, the inner surface of the conical block is fixedly connected to the outer surface of the rotating rod, a bent rod is provided on the outside of the conical block, and both ends of the bent rod are fixedly connected to connecting plates. Since the top of the bent rod is fixedly connected to the outer surface of the left bottom of the connecting plate at its top, and the bottom end of the bent rod is fixedly connected to the outer surface of the right top of the connecting plate at the bottom of the air, under the influence of the rotating rod, the conical block moves up and down, and the outer surface of the connecting plate is rotatably connected with a claw, and the outer surface of the claw is slidably connected to the inner surface of the plug plate. When the outer surface of the conical block contacts and squeezes the outer surface of the connecting plate, the connecting plate rotates, and under the push of the bent rod, the connecting plate at the other end of the bent rod also rotates, and the claw is extended at the same time, the plug plate is stuck, and the inner surface of the plug plate is slidably connected to the connecting plate and the outer surface of the bent rod.
[0009] Preferably, the top adjusting device includes a telescopic rod, which presses the pressure plate downward, and the pressure plate drives the top plate to slide, thereby controlling the distance between the top plate and the bottom plate, the bottom end of the telescopic rod is fixedly connected to the pressure plate, the upper surface of the pressure plate is rotatably connected to a nut, the inner surface of the nut is slidably connected to a pin, the inner surface of the nut is threadedly connected to a screw, the bottom end of the screw is fixedly connected to a spring plate, the pin is pulled out, the nut is rotated, the screw moves up and down, the spring plate is bent by the push-pull action of the bottom end of the screw, and under the push-pull action of the spring plate, the top plate bends at a certain angle, and the outer surface of the spring plate is movably connected to the top plate.
[0010] Preferably, the outer surface of the telescopic rod is slidably connected to the inner surface of the fixed plate, the outer surface of the fixed plate is slidably connected to the outer surface of the pressure plate, the inner surface of the pressure plate is slidably connected to the outer surface of the screw, the lower surface of the pressure plate is rotatably connected to the upper surface of the top plate, the outer surface of the roller contacts the pipe, and then the pin is inserted, the bending angle of the top plate is fixed, and the bottom plate can make corresponding adjustments according to the bending of the top plate to adapt to the bending requirements of different angles, the lower surface of the spring is fixedly connected to the upper surface of the top plate, and the inner surface of the top plate is rotatably connected to the outer surface of the roller.
[0011] Preferably, the sorting device includes a liquid inlet pipe, the top end of the liquid inlet pipe is fixedly connected to a hydraulic cylinder, a through hole is opened in the wall of the hydraulic cylinder, the liquid inlet pipe injects hydraulic oil into the interior of the hydraulic cylinder, the hydraulic oil enters the interior of the connecting pipe through the through hole, and under the action of the hydraulic thrust inside the connecting pipe, the pressure blocks are close to each other, the pipe is clamped, and the inner surface of the through hole is fixedly connected to the connecting pipe. By observing whether there is a gap between the outer surface of the pipe and the contact surface of the pressure block, it is judged whether the outer wall of the pipe is squeezed and deformed, and the pipe with a large deformation is directly discarded, and the inner surface of the top end of the connecting pipe is slidably connected to the pressure block.
[0012] Preferably, the outer surface of the hydraulic cylinder is rotatably connected to the inner surface of the fixed plate. After the inspection is completed, the hydraulic cylinder rotates, the pipe is pulled out, and then the pressure block is released. The hydraulic cylinder rotates in the opposite direction, the pressure block is clamped again, and inspections of other areas are performed. The connecting pipes are arranged in a ring along the outer surface of the hydraulic cylinder, and the connecting pipes can be installed at different through holes according to the bending angle and length of the pipe.
[0013] (III) Beneficial effects The present invention provides a multi-station cold bending CNC pipe bender. It has the following beneficial effects: (I) This multi-station cold bending CNC pipe bending machine is provided with a fixed plate. When the equipment is in use, the fixed plate is fixed to the outside world. Subsequently, the metal pipe to be bent is inserted into the inside of the feeding device from the right side of the fixed plate. The feeding device clamps the pipe and transports the pipe to the inside of the bending device by adjusting the feeding angle of the pipe. The pipe then enters the inside of the bending device. Under the extrusion of the top adjusting device and the bottom adjusting device, the feeding device pushes the pipe to bend while moving forward. The bent pipe then enters the inside of the finishing device. After the external shaping is completed in the finishing device, it is discharged from the left side of the fixed plate to the outside of the equipment. The pipe bending is completed. The modular design is adopted for easy disassembly and assembly, which solves the problem of inconvenient disassembly and assembly of traditional pipe bending machines.
[0014] (ii) The multi-station cold-bending CNC pipe bending machine is provided with a feeding device. When the equipment is in use, the position of the slider and the angle of the push rod are controlled by adjusting the length of the connecting spring, thereby controlling the clamping force of the driving wheel. The rotation of the turn plate can adjust the entry angle of the pipe feeding. Before the driving wheel feeds into the equipment, the adjusting rod is rotated. Under the action of the thread of the supporting plate, the adjusting rod adjusts the height of the clamping plate. During this process, the outer surface of the ball is rollingly connected with the outer surface of the pipe. The feeding of pipes of different diameters can be adapted by adjusting the distance between the driving wheel and the clamping plate. The clamping plate prevents the pipe from shaking under the drive of the driving wheel, thereby solving the problem of poor flexibility and adaptability of traditional pipe bending machines.
[0015] (III) The multi-station cold-bending CNC pipe bender is provided with a bottom adjustment device. Before the equipment is used, the position of the limit device is controlled according to the required bending angle. When the limit device slides upward along the inner surface of the clamping plate, the compression spring is extended, the bending curvature of the bottom plate increases, and the bending angle of the pipe increases. Conversely, the bending angle of the pipe decreases. The bottom adjustment device is affected by the bending angle of the top adjustment device. The two cooperate with each other to clamp the pipe together. During the bending process, the roller rotates to convert the sliding friction into rolling friction, thereby reducing the resistance to bending and feeding, thereby solving the problem of large bending resistance and poor flexibility of traditional pipe bender.
[0016] (IV) The multi-station cold-bending CNC pipe bending machine is provided with a limit device. When the equipment is in use, the outer surface of the plug plate slides along the inner surface of the clamping plate, and the position of the telescopic device is controlled by rotating the rotating rod. Since the top of the bending rod is fixedly connected to the outer surface of the left bottom of the connecting plate at its top, and the bottom of the bending rod is fixedly connected to the outer surface of the right top of the connecting plate at the bottom of the air, the conical block moves up and down under the influence of the rotating rod. When the outer surface of the conical block contacts and squeezes the outer surface of the connecting plate, the connecting plate rotates. Under the push of the bending rod, the connecting plate at the other end of the bending rod also rotates, and the claws extend at the same time, and the plug plate is stuck, which solves the problem of structural fixation of traditional pipe bending machines.
[0017] (V) This multi-station cold-bending CNC pipe bending machine is equipped with a top adjustment device. When the equipment is in use, the telescopic rod presses the pressure plate downward, and the pressure plate drives the top plate to slide, thereby controlling the distance between the top plate and the bottom plate. The pin is pulled out, the nut is turned, and the screw moves up and down. The spring is bent by the push-pull action of the bottom end of the screw. Under the push-pull action of the spring, the top plate is bent at a certain angle, the outer surface of the roller contacts the pipe, and then the pin is inserted. The bending angle of the top plate is fixed, and the bottom plate can make corresponding adjustments according to the bending of the top plate, so as to adapt to the bending needs of pipes at different angles, solving the problem of fixed bending angles of traditional pipe bending machines.
[0018] (VI) The multi-station cold bending CNC pipe bending machine is provided with a finishing device. When the equipment is used, the liquid inlet pipe injects hydraulic oil into the interior of the hydraulic cylinder. The hydraulic oil enters the interior of the connecting pipe through the through hole. Under the action of the hydraulic thrust inside the connecting pipe, the pressing blocks are close to each other and the pipe is clamped. By observing whether there is a gap between the outer surface of the pipe and the contact surface of the pressing block, it is determined whether the outer wall of the pipe is squeezed and deformed. The pipe with a large deformation is directly rejected. After the inspection is completed, the hydraulic cylinder rotates, the pipe is pulled out, and then the pressing block is released. The hydraulic cylinder rotates in the opposite direction, the pressing block is clamped again, and inspections are carried out on other areas. The connecting pipe can be installed at different through holes according to the bending angle and length of the pipe, which solves the problem that the bending part of the traditional pipe bending machine is prone to excessive deformation and cannot be detected. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the bending device of the present invention; Figure 3 It is a schematic structural diagram of the feeding device of the present invention; Figure 4 It is a structural schematic diagram of the bottom adjustment device of the present invention; Figure 5 It is a schematic structural diagram of the limiting device of the present invention; Figure 6 It is a structural schematic diagram of the telescopic device of the present invention; Figure 7 It is a schematic structural diagram of the top adjustment device of the present invention; Figure 8 It is a schematic diagram of the structure of the tidying device of the present invention.
[0020] In the figure: 1, fixed plate; 2, feeding device; 3, bending device; 4, sorting device; 5, top adjustment device; 6, bottom adjustment device; 10, rotating plate; 11, connecting spring; 12, slider; 13, push rod; 14, driving wheel; 15, supporting plate; 16, adjusting rod; 17, clamping plate; 18, ball; 20, clamping plate; 21, compression spring; 22, limiting device; 23, bottom plate; 24, roller; 25, plug plate; 26, rotating rod; 27, telescopic device; 30, conical block; 31, bending rod; 32, connecting plate; 33, claw; 40, telescopic rod; 41, pressing plate; 42, nut; 43, latch; 44, screw; 45, spring piece; 46, top plate; 50, liquid inlet pipe; 51, hydraulic cylinder; 52, through hole; 53, connecting pipe; 54, pressing block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] See also Figure 1-8 The present invention provides a technical solution: a multi-station cold bending CNC pipe bending machine, comprising a fixed plate 1, a feeding device 2 is rotatably connected to the front of the fixed plate 1, a bending device 3 is arranged on the left side of the feeding device 2, the fixed plate 1 is fixed to the outside, then, the metal pipe to be bent is inserted into the inside of the feeding device 2 from the right side of the fixed plate 1, the feeding device 2 clamps the pipe, and the pipe is transported to the inside of the bending device 3 by adjusting the feeding angle of the pipe, a finishing device 4 is arranged on the left side of the bending device 3, the bending device 3 comprises a top adjusting device 5, and a bottom adjusting device 6 is arranged at the bottom of the top adjusting device 5, the pipe then enters the inside of the bending device 3, under the extrusion of the top adjusting device 5 and the bottom adjusting device 6, the feeding device 2 pushes the pipe to bend while moving forward, and the bent pipe then enters the inside of the finishing device 4; The feeding device 2 includes a rotating plate 10, in the wall of which a connecting spring 11 is slidably connected, and a slider 12 is fixedly connected to the right end of the connecting spring 11. The outer surface of the slider 12 is rotatably connected to a push rod 13, and the right end of the push rod 13 is rotatably connected to a driving wheel 14. The position of the slider 12 and the angle of the push rod 13 are controlled by adjusting the length of the connecting spring 11, thereby controlling the clamping force of the driving wheel 14. The rotating plate 10 can adjust the entry angle of the pipe feeding by rotating. A supporting plate 15 is provided on the right side of the driving wheel 14. An adjusting rod 16 is threadedly connected to the inner surface of the supporting plate 15, and a clamping plate 17 is rotatably connected to the top of the adjusting rod 16. Before the driving wheel 14 feeds into the interior of the equipment, the adjusting rod 16 is rotated. Under the action of the thread of the supporting plate 15, the adjusting rod 16 adjusts the height of the clamping plate 17. In this process, the outer surface of the ball 18 is rollingly connected to the outer surface of the pipe, and the upper surface of the clamping plate 17 is rotatably connected to the ball 18.
[0023] The outer surface of the slider 12 is slidably connected to the inner surface of the rotating plate 10. After the external shaping is completed inside the sorting device 4, it is discharged from the left side of the fixed plate 1 to the outside of the equipment. The pipe bending is completed. The modular design is adopted for easy disassembly and assembly. The outer surface of the driving wheel 14 is slidably connected to the inner surface of the rotating plate 10. The outer surface of the support plate 15 is fixedly connected to the front of the rotating plate 10. The feeding of pipes of different diameters can be adapted by adjusting the distance between the driving wheel 14 and the splint 17. The splint 17 prevents the pipe from shaking under the drive of the driving wheel 14. The back of the rotating plate 10 is rotatably connected to the outer surface of the fixed plate 1.
[0024] The bottom adjustment device 6 includes a card plate 20, and a compression spring 21 is fixedly connected to the upper surface of the card plate 20. Limiting devices 22 are arranged on the left and right sides of the compression spring 21. Before the device is used, the position of the limiting device 22 is controlled according to the required bending angle. The upper surface of the limiting device 22 is movably connected to the bottom plate 23. When the limiting device 22 slides upward along the inner surface of the card plate 20, the compression spring 21 is extended, the bending curvature of the bottom plate 23 is increased, and the bending angle of the pipe is increased. On the contrary, the bending angle of the pipe is reduced, and the inner surface of the bottom plate 23 is The surface is rotatably connected with a roller 24, the lower surface of the bottom plate 23 is fixedly connected to the top of the compression spring 21, the bottom adjusting device 6 is affected by the bending angle of the top adjusting device 5, and the two cooperate with each other to clamp the pipe together, the outer surface of the limit device 22 is slidably connected to the inner surface of the clamping plate 20, and the back of the clamping plate 20 is fixedly connected to the front of the fixed plate 1. During the bending process, the roller 24 rotates to convert the sliding friction into rolling friction, thereby reducing the resistance to bending and feeding, and the outer surface of the fixed plate 1 is fixedly connected to the outer surfaces at both ends of the bottom plate 23.
[0025] The limiting device 22 includes an insert plate 25, the outer surface of the insert plate 25 is slidably connected to the inner surface of the card plate 20, the inner surface of the insert plate 25 is threadedly connected to a rotating rod 26, and a telescopic device 27 is arranged outside the rotating rod 26. The outer surface of the insert plate 25 slides along the inner surface of the card plate 20, and the position of the telescopic device 27 is controlled by rotating the rotating rod 26. The outer surface of the telescopic device 27 is movably connected to the inner surface of the insert plate 25.
[0026] The extension device 27 includes a conical block 30, the inner surface of the conical block 30 is fixedly connected to the outer surface of the rotating rod 26, and a bent rod 31 is arranged on the outside of the conical block 30, and the two ends of the bent rod 31 are fixedly connected to a connecting plate 32. Since the top of the bent rod 31 is fixedly connected to the outer surface of the bottom left side of the connecting plate 32 at its top, and the bottom end of the bent rod 31 is fixedly connected to the outer surface of the top right side of the connecting plate 32 at the bottom of the air, under the influence of the rotating rod 26, the conical block 30 moves up and down, and the outer surface of the connecting plate 32 is rotatably connected with a claw 33, and the outer surface of the claw 33 is slidably connected to the inner surface of the plug plate 25. When the outer surface of the conical block 30 contacts and squeezes the outer surface of the connecting plate 32, the connecting plate 32 rotates, and under the push of the bent rod 31, the connecting plate 32 at the other end of the bent rod 31 also rotates, and the claw 33 extends out at the same time, the plug plate 25 is stuck, and the inner surface of the plug plate 25 is slidably connected to the outer surfaces of the connecting plate 32 and the bent rod 31.
[0027] The top adjustment device 5 includes a telescopic rod 40, which presses the pressure plate 41 downward, and the pressure plate 41 drives the top plate 46 to slide, thereby controlling the distance between the top plate 46 and the bottom plate 23. The bottom end of the telescopic rod 40 is fixedly connected to the pressure plate 41, and the upper surface of the pressure plate 41 is rotatably connected to the nut 42, and the inner surface of the nut 42 is slidably connected to the pin 43, and the inner surface of the nut 42 is threadedly connected to the screw 44, and the bottom end of the screw 44 is fixedly connected to the spring piece 45. The pin 43 is pulled out, the nut 42 is rotated, and the screw 44 moves up and down. The spring piece 45 is bent by the push-pull action of the bottom end of the screw 44. Under the push-pull action of the spring piece 45, the top plate 46 bends at a certain angle, and the outer surface of the spring piece 45 is movably connected to the top plate 46.
[0028] The outer surface of the telescopic rod 40 is slidably connected to the inner surface of the fixed plate 1, the outer surface of the fixed plate 1 is slidably connected to the outer surface of the pressing plate 41, the inner surface of the pressing plate 41 is slidably connected to the outer surface of the screw 44, the lower surface of the pressing plate 41 is rotatably connected to the upper surface of the top plate 46, the outer surface of the roller 24 contacts the pipe, and then the pin 43 is inserted, the bending angle of the top plate 46 is fixed, and the bottom plate 23 can make corresponding adjustments according to the bending of the top plate 46 to adapt to the bending requirements of different angles, the lower surface of the spring 45 is fixedly connected to the upper surface of the top plate 46, and the inner surface of the top plate 46 is rotatably connected to the outer surface of the roller 24.
[0029] The sorting device 4 includes a liquid inlet pipe 50, the top end of which is fixedly connected to a hydraulic cylinder 51, a through hole 52 is provided in the wall of the hydraulic cylinder 51, the liquid inlet pipe 50 injects hydraulic oil into the interior of the hydraulic cylinder 51, the hydraulic oil enters the interior of the connecting pipe 53 through the through hole 52, under the action of the hydraulic thrust inside the connecting pipe 53, the pressing blocks 54 are close to each other, the pipe is clamped, the inner surface of the through hole 52 is fixedly connected to the connecting pipe 53, and whether the outer wall of the pipe is squeezed and deformed is determined by observing whether there is a gap between the outer surface of the pipe and the contact surface of the pressing block 54, and the pipe with a large deformation is directly discarded, and the inner surface of the top end of the connecting pipe 53 is slidably connected to the pressing block 54.
[0030] The outer surface of the hydraulic cylinder 51 is rotatably connected to the inner surface of the fixed plate 1. After the inspection is completed, the hydraulic cylinder 51 rotates, the pipe is pulled out, and then the pressure block 54 is released. The hydraulic cylinder 51 rotates in the opposite direction, and the pressure block 54 is clamped again to carry out inspections in other areas. The connecting pipes 53 are arranged in a ring along the outer surface of the hydraulic cylinder 51.
[0031] When in use, the fixed plate 1 is fixed to the outside world, and then the metal pipe to be bent is inserted into the feeding device 2 from the right side of the fixed plate 1. The feeding device 2 clamps the pipe and transports the pipe to the inside of the bending device 3 by adjusting the feeding angle of the pipe. The pipe then enters the inside of the bending device 3. Under the extrusion of the top adjusting device 5 and the bottom adjusting device 6, the feeding device 2 pushes the pipe to bend while moving forward. The bent pipe then enters the inside of the sorting device 4. After the external shaping is completed inside the sorting device 4, it is discharged from the left side of the fixed plate 1 to the outside of the equipment. The pipe bending is completed. It adopts a modular design, which is easy to disassemble and assemble.
[0032] The position of the slider 12 and the angle of the push rod 13 are controlled by adjusting the length of the connecting spring 11, thereby controlling the clamping force of the driving wheel 14. The rotation of the turn plate 10 can adjust the entry angle of the pipe feeding. Before the driving wheel 14 feeds into the equipment, the adjusting rod 16 is rotated. Under the action of the thread of the supporting plate 15, the adjusting rod 16 adjusts the height of the clamping plate 17. During this process, the outer surface of the ball 18 is rollingly connected with the outer surface of the pipe. The distance between the driving wheel 14 and the clamping plate 17 is adjusted to adapt to the feeding of pipes of different diameters. The clamping plate 17 prevents the pipe from shaking under the drive of the driving wheel 14.
[0033] Before the equipment is used, the position of the limit device 22 is controlled according to the required bending angle. When the limit device 22 slides upward along the inner surface of the clamping plate 20, the compression spring 21 is extended, the bending curvature of the bottom plate 23 increases, and the bending angle of the pipe increases. Conversely, the bending angle of the pipe decreases. The bottom adjusting device 6 is affected by the bending angle of the top adjusting device 5. The two cooperate with each other to clamp the pipe together. During the bending process, the roller 24 rotates to convert the sliding friction into rolling friction, thereby reducing the resistance to bending and feeding.
[0034] The outer surface of the plug plate 25 slides along the inner surface of the card plate 20, and the position of the telescopic device 27 is controlled by rotating the rotating rod 26. Since the top of the bent rod 31 is fixedly connected to the outer surface of the left bottom of the connecting plate 32 at its top, and the bottom end of the bent rod 31 is fixedly connected to the outer surface of the right top of the connecting plate 32 at the bottom of the air, under the influence of the rotating rod 26, the conical block 30 moves up and down. When the outer surface of the conical block 30 contacts and squeezes the outer surface of the connecting plate 32, the connecting plate 32 rotates. Under the push of the bent rod 31, the connecting plate 32 at the other end of the bent rod 31 also rotates, and the claw 33 extends at the same time, and the plug plate 25 is stuck.
[0035] The telescopic rod 40 presses the pressure plate 41 downward, and the pressure plate 41 drives the top plate 46 to slide, thereby controlling the distance between the top plate 46 and the bottom plate 23, pulling out the pin 43, rotating the nut 42, and the screw 44 moves up and down. The spring piece 45 is bent by the push-pull action of the bottom end of the screw 44. Under the push-pull action of the spring piece 45, the top plate 46 is bent at a certain angle, and the outer surface of the roller 24 contacts the pipe. Then the pin 43 is inserted, and the bending angle of the top plate 46 is fixed. The bottom plate 23 can make corresponding adjustments according to the bending of the top plate 46 to meet the needs of bending pipes at different angles.
[0036] The liquid inlet pipe 50 injects hydraulic oil into the interior of the hydraulic cylinder 51, and the hydraulic oil enters the interior of the connecting pipe 53 through the through hole 52. Under the action of the hydraulic thrust inside the connecting pipe 53, the pressing blocks 54 are moved closer to each other, and the pipe is clamped. By observing whether there is a gap between the outer surface of the pipe and the contact surface of the pressing block 54, it is determined whether the outer wall of the pipe is squeezed and deformed. The pipe with a large deformation is directly rejected. After the inspection is completed, the hydraulic cylinder 51 rotates, the pipe is pulled out, and then the pressing block 54 is released, the hydraulic cylinder 51 rotates in the opposite direction, and the pressing block 54 is clamped again to carry out inspections in other areas. The connecting pipe 53 can be installed at different through holes 52 according to the bending angle and length of the pipe.
[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-station cold bending CNC pipe bender, comprising a fixed plate (1), characterized in that: The front side of the fixed plate (1) is rotatably connected to a feeding device (2); a bending device (3) is provided on the left side of the feeding device (2); a tidying device (4) is provided on the left side of the bending device (3); the bending device (3) comprises a top adjusting device (5); a bottom adjusting device (6) is provided at the bottom of the top adjusting device (5); The feeding device (2) comprises a rotating plate (10), a connecting spring (11) is slidably connected in the wall of the rotating plate (10), the right end of the connecting spring (11) is fixedly connected to a slider (12), the outer surface of the slider (12) is rotatably connected to a push rod (13), the right end of the push rod (13) is rotatably connected to a driving wheel (14), a support plate (15) is arranged on the right side of the driving wheel (14), the inner surface of the support plate (15) is threadedly connected to an adjusting rod (16), the top end of the adjusting rod (16) is rotatably connected to a clamping plate (17), and the upper surface of the clamping plate (17) is rotatably connected to a ball bearing (18).
2. A multi-station cold bending CNC pipe bender according to claim 1, characterized in that: The outer surface of the slider (12) is slidably connected to the inner surface of the rotating plate (10), the outer surface of the driving wheel (14) is slidably connected to the inner surface of the rotating plate (10), the outer surface of the support plate (15) is fixedly connected to the front surface of the rotating plate (10), and the back surface of the rotating plate (10) is rotatably connected to the outer surface of the fixed plate (1).
3. A multi-station cold bending CNC pipe bender according to claim 1, characterized in that: The bottom adjustment device (6) comprises a card plate (20), the upper surface of the card plate (20) is fixedly connected to a compression spring (21), and limit devices (22) are arranged on the left and right sides of the compression spring (21), the upper surface of the limit device (22) is movably connected to a bottom plate (23), the inner surface of the bottom plate (23) is rotatably connected to a roller (24), the lower surface of the bottom plate (23) is fixedly connected to the top end of the compression spring (21), the outer surface of the limit device (22) is slidably connected to the inner surface of the card plate (20), the back surface of the card plate (20) is fixedly connected to the front surface of the fixed plate (1), and the outer surface of the fixed plate (1) is fixedly connected to the outer surfaces of both ends of the bottom plate (23).
4. A multi-station cold bending CNC pipe bender according to claim 3, characterized in that: The limiting device (22) comprises a plug plate (25), the outer surface of the plug plate (25) being slidably connected to the inner surface of the clamping plate (20), the inner surface of the plug plate (25) being threadedly connected to a rotating rod (26), the outer portion of the rotating rod (26) being provided with a telescopic device (27), the outer surface of the telescopic device (27) being movably connected to the inner surface of the plug plate (25).
5. A multi-station cold bending CNC pipe bender according to claim 4, characterized in that: The telescopic device (27) comprises a conical block (30), the inner surface of the conical block (30) being fixedly connected to the outer surface of the rotating rod (26), a bent rod (31) being arranged outside the conical block (30), both ends of the bent rod (31) being fixedly connected to connecting plates (32), the outer surface of the connecting plate (32) being rotatably connected to a claw (33), the outer surface of the claw (33) being slidably connected to the inner surface of the plug plate (25), and the inner surface of the plug plate (25) being slidably connected to the outer surfaces of the connecting plate (32) and the bent rod (31).
6. The multi-station cold bending CNC pipe bender according to claim 1, characterized in that: The top adjustment device (5) comprises a telescopic rod (40), the bottom end of the telescopic rod (40) is fixedly connected to a pressure plate (41), the upper surface of the pressure plate (41) is rotatably connected to a nut (42), the inner surface of the nut (42) is slidably connected to a latch (43), the inner surface of the nut (42) is threadedly connected to a screw rod (44), the bottom end of the screw rod (44) is fixedly connected to a spring plate (45), and the outer surface of the spring plate (45) is movably connected to a top plate (46).
7. A multi-station cold bending CNC pipe bender according to claim 6, characterized in that: The outer surface of the telescopic rod (40) is slidably connected to the inner surface of the fixed plate (1), the outer surface of the fixed plate (1) is slidably connected to the outer surface of the pressing plate (41), the inner surface of the pressing plate (41) is slidably connected to the outer surface of the screw rod (44), the lower surface of the pressing plate (41) is rotationally connected to the upper surface of the top plate (46), the lower surface of the spring sheet (45) is fixedly connected to the upper surface of the top plate (46), and the inner surface of the top plate (46) is rotationally connected to the outer surface of the roller (24).
8. The multi-station cold bending CNC pipe bender according to claim 1, characterized in that: The arranging device (4) comprises a liquid inlet pipe (50), the top end of which is fixedly connected to a hydraulic cylinder (51), a through hole (52) is provided in the wall of the hydraulic cylinder (51), a connecting pipe (53) is fixedly connected to the inner surface of the through hole (52), and a pressure block (54) is slidably connected to the inner surface of the top end of the connecting pipe (53).
9. A multi-station cold bending CNC pipe bender according to claim 8, characterized in that: The outer surface of the hydraulic cylinder (51) is rotatably connected to the inner surface of the fixed plate (1), and the connecting pipes (53) are arranged in a ring along the outer surface of the hydraulic cylinder (51).