A pipe bending device for pipes

Abstract

The present invention relates to the technical field of pipe bending equipment, and discloses a pipe bending equipment for pipes, including a cabinet and an operating platform, wherein the operating platform is fixedly connected to the top of the cabinet, and a track groove is provided on the top of the operating platform. Through the design of the pipe bending mechanism, the front and rear guide wheels can be controlled to move toward each other to clamp the pipe, and when the pipe fits the bending head, the bending head can be rotated to bend the pipe. When the pipe is bent, the inner ring plate can be controlled to rotate separately by controlling the rotation of the gear ring, thereby driving the pipe to rotate, and the pipe can be bent in different directions during rotation. In addition, since the mounting block is directly inserted into the mounting groove for installation and fixed by the limiting plate penetrating the plug plate, it can be conveniently loaded and unloaded to replace bending heads of different arc sizes, thereby achieving the purpose of bending the pipe at multiple angles and in multiple directions.

Description

Technical Field

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

[0002] In the process of processing pipes, the pipes are often bent according to the use requirements. When bending the pipes, special bending equipment is often needed to be used. The commonly used methods of pipe bending can be divided into winding, push bending, press bending and rolling bending according to the bending method. According to whether the bending is heated or not, it can be divided into cold bending and hot bending. According to whether there is filler during bending, it can be divided into cored bent pipe and coreless bent pipe.

[0003] A Chinese patent application with announcement number CN110480991B proposes a pipe bending device for building pipes, including a base, a limiting mechanism and a clamping mechanism. A T-slot is provided on the right side of the upper end of the base, and a movable block is installed on the upper end of the T-slot. A control box and a ceramic heating plate are installed on the movable block. The movable block can slide along the T-slot to adjust the front, back, left and right positions of the ceramic heating plate. A limiting mechanism is provided on the upper end of the base, an arc hole one is provided on the right side of the upper end of the base, an arc hole two is provided inside the arc hole one, and an arc hole three is provided inside the arc hole two. A clamping mechanism is installed on the arc hole two, and a wedge block is installed on the arc hole three. A turntable is installed on the right side of the lower end of the base, which can heat the pipe, facilitate the bending of the pipe, save trouble and effort, and the bending angle is consistent.

[0004] Although the above device improves the convenience of bending the pipe by heating the pipe during the pipe bending operation, the bending angle is relatively single during the entire bending process. When it comes to meeting the need to bend the pipe in multiple directions and at multiple angles, it cannot properly perform matching operations, and the corresponding operation is relatively limited. Therefore, a pipe bending device for pipes is proposed herein to solve the above problems. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a pipe bending device for pipes.

[0006] The present invention provides a pipe bending device for pipes adopting the following technical solution:

[0007] A pipe bending device for pipes, comprising a cabinet and an operating platform, wherein the operating platform is fixedly connected to the top of the cabinet, a track groove is provided on the top of the operating platform, a threaded adjustment rod is rotatably connected inside the track groove, a first motor is fixedly connected to a side wall of the operating platform, the first motor is fixedly connected to one end of the threaded adjustment rod through an output shaft, and a pipe bending mechanism is provided on the operating platform;

[0008] The bending mechanism comprises a mounting block, the top of the operating platform is provided with a mounting slot, the mounting block extends into the mounting slot and matches the mounting slot, the mounting block is rotatably connected with a connecting rod, the top of the connecting rod is fixedly connected with a pressing elbow, the outer side of the mounting block is fixedly connected with a positioning plate, the top of the operating platform is fixedly connected with a plug plate, the plug plate penetrates the positioning plate, the positioning plate is slidably connected with a limiting plate, the limiting plate penetrates the plug plate, the positioning plate is rotatably connected with a threaded control rod, the threaded control rod extends out of the positioning plate, the threaded control rod penetrates the limiting plate and is threadedly connected to the limiting plate, the track groove is slidably connected with a moving block, the threaded adjustment rod penetrates the moving block and is threadedly connected to the moving block, the top of the moving block is slidably connected with a frame plate, the frame plate is rotatably connected with a bidirectional threaded hollow rod, the bidirectional threaded hollow rod penetrates the frame plate, and both ends of the bidirectional threaded hollow rod are provided The cam is provided with a first outer ring plate, a second outer ring plate is provided on one side of the first outer ring plate, and a guide wheel is provided on one side of the second outer ring plate, and a guide wheel is provided on the inner side of the U-shaped plate, and the second outer ring plate is rotatably connected to the inner ring plate, and the U-shaped plate is fixedly connected to a connecting plate, and the connecting plate passes through the inner ring plate and is slidably connected to the inner ring plate, and the inner ring plate is fixedly connected to a gear ring. A first rotating rod is provided on the top of the frame plate, and the first rotating rod is fixedly connected to the outside of the first rotating rod, and the two first gears are respectively meshed with the two gear rings. An auxiliary plate is rotatably connected to the inner side of the first outer ring plate, and an inclined plate is provided between the auxiliary plate and the connecting plate, and the auxiliary plate and the connecting plate are movably connected to the inclined plate through a movable hinge seat, and the top of the second outer ring plate is fixedly connected to the first stabilizing plate, and one end of the first stabilizing plate is fixedly connected to the top of the frame plate, and the first rotating rod sequentially passes through the two first stabilizing plates, and the first rotating rod is rotatably connected to the first stabilizing plate.

[0009] By adopting the above technical scheme, when performing pipe bending operations, the pipe can be passed through the bidirectional threaded hollow rod, the inner ring plate, the auxiliary plate and the guide wheel in sequence, and the front and rear guide wheels can be controlled to move toward each other to clamp the bent pipe. When the pipe fits the bending head, the bending head can be rotated to bend the pipe. When performing pipe bending operations, the inner ring plate can be controlled to rotate separately by controlling the rotation of the gear ring, thereby driving the pipe to rotate and bend in different directions during rotation. In addition, since the mounting block is directly inserted into the mounting groove for installation and is fixed by the limiting plate passing through the plug plate, it can be conveniently loaded and unloaded to replace bending heads of different arc sizes, thereby achieving the purpose of bending the pipe at multiple angles and in multiple directions.

[0010] Preferably, a threaded block is provided on the outside of the bidirectional threaded hollow rod, the bidirectional threaded hollow rod passes through the threaded block and is connected to the threaded block by threads, both sides of the frame plate are fixedly connected to limit plates, the limit plates pass through the threaded block, one side of the threaded block is fixedly connected to an intermediate plate, the intermediate plate is fixedly connected to one side of the first outer ring plate, one side of the second outer ring plate is fixedly connected to a limit rod, the limit rod passes through the first outer ring plate, the inside of the moving block is fixedly connected to a first electric push rod, and the first electric push rod is fixedly connected to the frame plate.

[0011] By adopting the above technical solution, after the limiting plate passes through the threaded block, the threaded block can be prevented from rotating along with the bidirectional threaded hollow rod.

[0012] Preferably, a second rotating rod is rotatably connected between the two first stabilizing plates, a second motor is fixedly connected to the inner side of one of the first stabilizing plates, the second motor is fixedly connected to one end of the second rotating rod via an output shaft, and second gears are fixedly connected to the outside of the first rotating rod and the second rotating rod, and the two second gears are meshed with each other.

[0013] By adopting the above technical solution, the transmission is performed through the two second gears, so as to cause the first rotating rod to rotate.

[0014] Preferably, the outside of the bidirectional threaded hollow rod is fixedly connected to a third gear, the inner bottom of the frame plate is slidably connected to a movable plate, the top of the movable plate is fixedly connected to a rack, the rack is meshed with the third gear, an L-shaped plate is integrally formed on the rear side of the movable plate, the rear side of the frame plate is fixedly connected to a second electric push rod, and one end of the second electric push rod is fixedly connected to the inner side of the L-shaped plate.

[0015] By adopting the above technical solution, the second electric push rod can push and pull the L-shaped plate after working, thereby further prompting the movable plate to move.

[0016] Preferably, the top and bottom of the U-shaped plate are fixedly connected to friction rings, the inner side of the U-shaped plate is rotatably connected to a shaft rod, the shaft rod passes through the guide wheel and is fixedly connected to the guide wheel, the outside of the shaft rod is fixedly connected to a friction block, the friction block is arranged on the inner side of the friction ring and contacts the friction ring.

[0017] By adopting the above technical solution, there is friction between the friction ring and the friction block, thereby limiting the flexibility of the guide wheel when rotating, so that the guide wheel can rotate only when the pipe clamped by the guide wheel is bent and pulled.

[0018] Preferably, a control mechanism is provided on the operating platform, and the control mechanism includes a third motor, and the third motor is fixedly connected to the inside of the operating platform. A plug-in rod is rotatably connected to the inside of the operating platform, and the plug-in rod extends out of the operating platform. A rectangular rod is integrally formed on the plug-in rod, and a rectangular groove is provided at the bottom of the connecting rod. The rectangular rod extends into the rectangular groove and matches the rectangular groove. A bracket plate is fixedly connected to the outside of the plug-in rod, and an extension plate is slidably connected to the inside of the bracket plate.

[0019] By adopting the above technical solution, after the rectangular rod is inserted into the rectangular groove, the connecting rod can be driven to rotate.

[0020] Preferably, a fourth gear is fixedly connected to the outside of the plug-in rod, and the third motor is fixedly connected to a fifth gear via an output shaft, and the fourth gear is meshed with the fifth gear.

[0021] By adopting the above technical solution, the rotation of the fifth gear can drive the fourth gear to rotate.

[0022] Preferably, the extension plate extends out of the bracket plate, and a fixing block is fixedly connected to the extension plate, and the fixing block is arranged at the rear side of the bending head.

[0023] By adopting the above technical solution, the fixing block can squeeze and fix the pipe on the bending head.

[0024] Preferably, a cylinder is fixedly connected inside the bracket plate, and one end of the cylinder is fixedly connected to the extension plate.

[0025] By adopting the above technical solution, the cylinder can push the extension plate after working.

[0026] In summary, the present invention includes the following beneficial technical effects:

[0027] 1. A pipe bending device for pipes. Through the design of the pipe bending mechanism, the front and rear guide wheels can be controlled to move toward each other to clamp the bent pipe. When the pipe fits the bending head, the bending head can be rotated to bend the pipe. When the pipe is bent, the inner ring plate can be controlled to rotate separately by controlling the rotation of the gear ring, thereby driving the pipe to rotate, and it can be bent in different directions when rotating. In addition, since the mounting block is directly inserted into the mounting groove for installation and fixed by the limiting plate penetrating the plug plate, it can be conveniently loaded and unloaded to replace bending heads of different arc sizes, thereby achieving the purpose of bending the pipe at multiple angles and in multiple directions.

[0028] 2. A pipe bending device for pipes. Through the design of the control mechanism, the fixed block moves to squeeze the pipe tightly and fit it on the bending head. After the third motor works, it drives the fifth gear to rotate. At this time, the plug-in rod drives the rectangular rod to rotate, the rectangular rod drives the connecting rod to rotate, and the connecting rod drives the bending head to rotate. The part of the bending head that is on the arc surface will exert pressure on the pipe during the rotation process to achieve the bending purpose. While realizing the above functions, the structural design is simple, which is more conducive to cost control. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the moving block in the present invention;

[0031] Figure 3 for Figure 2 A in the enlarged view;

[0032] Figure 4 It is a rear view structural diagram of the moving block in the present invention;

[0033] Figure 5 This is a disassembled diagram of the friction ring and the friction block in the present invention;

[0034] Figure 6 It is a structural schematic diagram of the installation block in the present invention;

[0035] Figure 7 It is a top view of the structure of the mounting block in the present invention;

[0036] Figure 8 for Figure 7 The enlarged view of point B in the figure;

[0037] Fig. 9 It is a disassembled diagram of the installation block and the operating platform in the present invention.

[0038] Description of the accompanying drawings: 1, cabinet; 2, operating platform; 3, track groove; 4, threaded adjustment rod; 5, first motor; 6, bending mechanism; 61, mounting block; 62, mounting groove; 63, connecting rod; 64, bending head; 65, positioning plate; 66, plug plate; 67, limiting plate; 68, threaded control rod; 69, moving block; 691, frame plate; 692, bidirectional threaded hollow rod; 693, first outer ring plate; 694, second outer ring plate; 695, U-shaped plate; 696, guide wheel; 697, inner ring plate; 698, connecting plate; 699, first rotating rod; 681, first gear; 682, gear ring; 6 83. Auxiliary plate; 684. Inclined plate; 685. First stabilizing plate; 687. Threaded block; 688. Intermediate plate; 689. Limit rod; 671. First electric push rod; 672. Second rotating rod; 673. Second motor; 674. Second gear; 675. Third gear; 676. Moving plate; 677. Rack; 678. Second electric push rod; 679. Friction ring; 661. Friction block; 7. Control mechanism; 71. Third motor; 72. Connecting rod; 73. Rectangular rod; 74. Bracket plate; 75. Extension plate; 76. Fourth gear; 77. Fifth gear; 78. Fixed block; 79. Cylinder. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-9 The present invention is described in further detail.

[0040] The present invention discloses a pipe bending device for pipes. Figure 1-9 , a pipe bending device for pipes, comprising a cabinet 1 and an operating platform 2, the operating platform 2 is fixedly connected to the top of the cabinet 1, a track groove 3 is opened on the top of the operating platform 2, a threaded adjustment rod 4 is rotatably connected inside the track groove 3, a first motor 5 is fixedly connected to one side wall of the operating platform 2, the first motor 5 is fixedly connected to one end of the threaded adjustment rod 4 through an output shaft, and a pipe bending mechanism 6 is arranged on the operating platform 2;

[0041] The pipe bending mechanism 6 includes a mounting block 61, a mounting groove 62 is provided on the top of the operating platform 2, the mounting block 61 extends into the mounting groove 62 and matches the mounting groove 62, a connecting rod 63 is rotatably connected inside the mounting block 61, a pressing elbow 64 is fixedly connected to the top of the connecting rod 63, a positioning plate 65 is fixedly connected to the outside of the mounting block 61, a plug plate 66 is fixedly connected to the top of the operating platform 2, the plug plate 66 penetrates the positioning plate 65, a limiting plate 67 is slidably connected inside the positioning plate 65, the limiting plate 67 penetrates the plug plate 66, a threaded control rod 68 is rotatably connected inside the positioning plate 65, the threaded control rod 68 extends out of the positioning plate 65, the threaded control rod 68 penetrates the limiting plate 67 and is connected to the limiting plate 67 by threads, and a moving block 69 is slidably connected inside the track groove 3;

[0042] The threaded adjustment rod 4 penetrates the moving block 69 and is connected to the moving block 69 by threads. A frame plate 691 is slidably connected to the top of the moving block 69. A bidirectional threaded hollow rod 692 is rotatably connected inside the frame plate 691. The bidirectional threaded hollow rod 692 penetrates the frame plate 691. A first outer ring plate 693 is provided at both ends of the bidirectional threaded hollow rod 692. A second outer ring plate 694 is provided on one side of the first outer ring plate 693. Two U-shaped plates 695 are provided on one side of the second outer ring plate 694. A guide wheel 696 is provided on the inner side of the U-shaped plate 695. An inner ring plate 697 is rotatably connected to the inner side of the second outer ring plate 694.

[0043] A connecting plate 698 is fixedly connected to the U-shaped plate 695, and the connecting plate 698 penetrates the inner ring plate 697 and is slidably connected to the inner ring plate 697. A gear ring 682 is fixedly connected to the inner ring plate 697. A first rotating rod 699 is arranged on the top of the frame plate 691. Two first gears 681 are fixedly connected to the outside of the first rotating rod 699. The two first gears 681 are respectively meshed with the two gear rings 682. An auxiliary plate 683 is rotatably connected to the inside of the first outer ring plate 693. An inclined plate 684 is arranged between the auxiliary plate 683 and the connecting plate 698. The auxiliary plate 683 and the connecting plate 698 are both movably connected to the inclined plate 684 through a movable hinge seat. A first stabilizing plate 685 is fixedly connected to the top of the second outer ring plate 694, and one end of the first stabilizing plate 685 is fixedly connected to the top of the frame plate 691.

[0044] The first rotating rod 699 passes through the two first stabilizing plates 685 in sequence, and the first rotating rod 699 is rotatably connected to the first stabilizing plate 685. When performing the pipe bending operation, the pipe can be passed through the bidirectional threaded hollow rod 692, the inner ring plate 697, the auxiliary plate 683 and the guide wheel 696 in sequence, and the front and rear guide wheels 696 can be controlled to move towards each other to clamp the bent pipe. When the pipe fits the bending head 64, the bending head 64 rotates to bend the pipe. When performing the pipe bending operation, the inner ring plate 697 can be controlled to rotate separately by controlling the rotation of the gear ring 682, thereby driving the pipe to rotate, and it can be bent in different directions when rotating. In addition, since the mounting block 61 is directly inserted into the mounting groove 62 for installation and is fixed by the limiting plate 67 passing through the plug plate 66, it can be conveniently loaded and unloaded to replace the bending heads 64 with different arc sizes, thereby achieving the purpose of bending the pipe at multiple angles and in multiple directions.

[0045] A thread block 687 is arranged outside the bidirectional threaded hollow rod 692, and the bidirectional threaded hollow rod 692 penetrates the thread block 687 and is connected to the thread block 687 by threads. Limiting plates are fixedly connected to both sides of the frame plate 691, and the limiting plates penetrate the thread block 687. An intermediate plate 688 is fixedly connected to one side of the thread block 687, and the intermediate plate 688 is fixedly connected to one side of the first outer ring plate 693. A limiting rod 689 is fixedly connected to one side of the second outer ring plate 694, and the limiting rod 689 penetrates the first outer ring plate 693. A first electric push rod 671 is fixedly connected to the inside of the moving block 69, and the first electric push rod 671 is fixedly connected to the frame plate 691. After the limiting plate penetrates the thread block 687, the thread block 687 can be prevented from rotating with the bidirectional threaded hollow rod 692.

[0046] A second rotating rod 672 is rotatably connected between the two first stabilizing plates 685, a second motor 673 is fixedly connected to the inner side of one of the first stabilizing plates 685, and the second motor 673 is fixedly connected to one end of the second rotating rod 672 via an output shaft, and the first rotating rod 699 and the second rotating rod 672 are both fixedly connected to the outside with a second gear 674, and the two second gears 674 are meshed with each other, and the transmission is carried out through the two second gears 674, so that the first rotating rod 699 rotates, and the outer side of the bidirectional threaded hollow rod 692 The frame plate 691 is fixedly connected with a third gear 675, the inner bottom of the frame plate 691 is slidably connected with a moving plate 676, the top of the moving plate 676 is fixedly connected with a rack 677, the rack 677 is meshed with the third gear 675, the rear side of the moving plate 676 is integrally formed with an L-shaped plate, the rear side of the frame plate 691 is fixedly connected with a second electric push rod 678, one end of the second electric push rod 678 is fixedly connected with the inner side of the L-shaped plate, and the second electric push rod 678 can push and pull the L-shaped plate after working, so as to further promote the movement of the moving plate 676;

[0047] The top and bottom of the U-shaped plate 695 are fixedly connected to the friction ring 679, and the inner side of the U-shaped plate 695 is rotatably connected to the shaft rod, which passes through the guide wheel 696 and is fixedly connected to the guide wheel 696. The outer side of the shaft rod is fixedly connected to the friction block 661, which is arranged on the inner side of the friction ring 679 and contacts with the friction ring 679. There is friction between the friction ring 679 and the friction block 661, thereby limiting the flexibility of the guide wheel 696 when rotating, so that the guide wheel 696 can rotate only when the pipe clamped by the guide wheel 696 is bent and pulled.

[0048] The operating platform 2 is provided with a control mechanism 7, which includes a third motor 71, which is fixedly connected to the inside of the operating platform 2, and a plug-in rod 72 is rotatably connected to the inside of the operating platform 2, and the plug-in rod 72 extends out of the outside of the operating platform 2, and a rectangular rod 73 is integrally formed on the plug-in rod 72, and a rectangular groove is provided at the bottom of the connecting rod 63, and the rectangular rod 73 extends into the inside of the rectangular groove and matches the rectangular groove, and a bracket plate 74 is fixedly connected to the outside of the connecting rod 72, and an extension plate 75 is slidably connected to the inside of the bracket plate 74, and after the rectangular rod 73 is inserted into the rectangular groove, the connecting rod 63 can be driven to rotate;

[0049] The fourth gear 76 is fixedly connected to the outside of the plug-in rod 72, and the third motor 71 is fixedly connected to the fifth gear 77 through the output shaft. The fourth gear 76 is meshed with the fifth gear 77, and the rotation of the fifth gear 77 can drive the fourth gear 76 to rotate. The extension plate 75 extends out of the outside of the bracket plate 74, and a fixed block 78 is fixedly connected to the extension plate 75. The fixed block 78 is arranged on the rear side of the bending head 64, and the fixed block 78 can squeeze and fix the pipe on the bending head 64. The inside of the bracket plate 74 is fixedly connected to a cylinder 79, and one end of the cylinder 79 is fixedly connected to the extension plate 75. The cylinder 79 can push the extension plate 75 after working.

[0050] In the actual operation process, firstly, the device is connected to the power supply. When performing the pipe bending operation, the pipe can be passed through the bidirectional threaded hollow rod 692, the inner ring plate 697, the auxiliary plate 683 and the guide wheel 696 in sequence. Then the second electric push rod 678 works and pushes the L-shaped plate, the L-shaped plate drives the strip plate to move, the strip plate drives the rack 677 to move, and the rack 677 drives the third gear 675 to rotate after moving, and the third gear 675 drives the bidirectional threaded hollow rod 692 to rotate. After the bidirectional threaded hollow rod 692 rotates, it drives the two thread blocks 687 to move in opposite directions or The thread block 687 moves in opposite directions, and the middle plate 688 is driven to move after the movement of the thread block 687, and the middle plate 688 pushes the first outer ring plate 693, and the first outer ring plate 693 drives the auxiliary plate 683 to move. During the movement of the auxiliary plate 683, the inclined plate 684 is caused to swing, and the inclined plate 684 pushes and pulls the connecting plate 698, causing the connecting plate 698 to slide on the inner ring plate 697, and the connecting plate 698 drives the U-shaped plate 695 to move. It can be seen from the above connection relationship that the two adjacent guide wheels 696 can be controlled to clamp the pipe tightly;

[0051] After the above pipes are clamped, the first motor 5 works and drives the threaded adjustment rod 4 to rotate, the threaded adjustment rod 4 drives the moving block 69 to move, the moving block 69 drives the frame plate 691 to move, and the frame plate 691 drives the bidirectional threaded hollow rod 692 to move. It can be seen from the above steps that the clamped pipe can be transported in the direction of the bending head 64. When the part of the pipe to be bent fits the rear side of the bending head 64, the cylinder 79 works and pushes the extension plate 75, and the extension plate 75 drives the fixed block 78 to move until the pipe is tightly squeezed and fits on the bending head 64. After the third motor 71 works, it drives the fifth gear 77 to rotate, the fifth gear 77 drives the fourth gear 76 to rotate, and the fourth gear 76 drives the plug-in rod 72 to rotate, the plug-in rod 72 drives the rectangular rod 73 to rotate, the rectangular rod 73 drives the connecting rod 63 to rotate, and the connecting rod 63 drives the bending head 64 to rotate. At this time, the part on the arc surface of the bending head 64 will apply pressure to the pipe during the rotation process to achieve the bending purpose;

[0052] When bending the pipe, if it is necessary to bend the pipe in different directions, the second motor 673 works and drives the second rotating rod 672 to rotate, the second rotating rod 672 drives the external second gear 674 to rotate, the second gear 674 drives another second gear 674 to rotate, the second gear 674 drives the first rotating rod 699 to rotate, the first rotating rod 699 drives the external first gear 681 to rotate, the first gear 681 drives the gear ring 682 to rotate, the gear ring 682 drives the inner ring plate 697 to rotate, the inner ring plate 697 drives the connecting plate 698 to rotate, the connecting plate 698 drives the U-shaped plate 695 to rotate. It can be seen from the above steps that the pipe clamped by the guide wheel 696 can be rotated at this time, and the pipe can be bent in different directions after the bending head rotates accordingly;

[0053] Finally, if it is necessary to bend the pipe with different curvatures, the threaded operating rod 68 is directly rotated, and the threaded operating rod 68 drives the limiting plate 67 to move. After the limiting plate 67 moves to leave the plug plate 66, the mounting plate can be quickly removed from the mounting slot 62 and the mounting plate with bending heads of different sizes of curvature can be conveniently replaced. In this way, the pipe can be bent at different angles of curvature by adding bending heads of different sizes of curvature. At the same time, in order to cope with different sizes of bending heads that can fit well with the pipe, after replacing the bending head, the first electric push rod 671 can be controlled to work, and the first electric push rod 671 pushes and pulls the frame plate 691 back and forth. It can be seen from the above connection relationship that the clamped pipe can be moved back and forth at this time to fit the rear side of the bending head, thereby properly ensuring the stability during the bending work.

[0054] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe bending device for pipes, comprising a cabinet (1) and an operating platform (2), characterized in that: The operating platform (2) is fixedly connected to the top of the cabinet (1); a track groove (3) is provided on the top of the operating platform (2); a threaded adjustment rod (4) is rotatably connected inside the track groove (3); a first motor (5) is fixedly connected to a side wall of the operating platform (2); the first motor (5) is fixedly connected to one end of the threaded adjustment rod (4) via an output shaft; and a pipe bending mechanism (6) is provided on the operating platform (2); The pipe bending mechanism (6) comprises a mounting block (61), a mounting groove (62) is provided on the top of the operating platform (2), the mounting block (61) extends into the mounting groove (62) and matches the mounting groove (62), a connecting rod (63) is rotatably connected inside the mounting block (61), a pressing elbow (64) is fixedly connected to the top of the connecting rod (63), a positioning plate (65) is fixedly connected to the outside of the mounting block (61), a plug plate (66) is fixedly connected to the top of the operating platform (2), the plug plate (66) passes through the positioning plate (65), a limiting plate (67) is slidably connected inside the positioning plate (65), the limiting plate (67) passes through the plug plate (66), and the positioning plate (65) is rotatably connected inside. The track groove (3) is slidably connected to a moving block (69). The threaded adjustment rod (4) penetrates the moving block (69) and is connected to the moving block (69) by threads. The top of the moving block (69) is slidably connected to a frame plate (691). The frame plate (691) is rotatably connected to a bidirectional threaded hollow rod (692). The bidirectional threaded hollow rod (692) penetrates the frame plate (691). Both ends of the bidirectional threaded hollow rod (692) are provided with a first outer ring plate (693). A second outer ring plate (694) is provided on one side of the first outer ring plate (693), two U-shaped plates (695) are provided on one side of the second outer ring plate (694), a guide wheel (696) is provided on the inner side of the U-shaped plate (695), an inner ring plate (697) is rotatably connected to the inner side of the second outer ring plate (694), a connecting plate (698) is fixedly connected to the U-shaped plate (695), the connecting plate (698) passes through the inner ring plate (697) and is slidably connected to the inner ring plate (697), a gear ring (682) is fixedly connected to the inner ring plate (697), a first rotating rod (699) is provided on the top of the frame plate (691), and the first rotating rod (699) is fixedly connected to the outside of two first gears (682). 81), the two first gears (681) are respectively meshed with the two gear rings (682), the inner side of the first outer ring plate (693) is rotatably connected to an auxiliary plate (683), an inclined plate (684) is provided between the auxiliary plate (683) and the connecting plate (698), the auxiliary plate (683) and the connecting plate (698) are both movably connected to the inclined plate (684) through a movable hinge seat, the top of the second outer ring plate (694) is fixedly connected to a first stabilizing plate (685), one end of the first stabilizing plate (685) is fixedly connected to the top of the frame plate (691), the first rotating rod (699) sequentially penetrates the two first stabilizing plates (685), and the first rotating rod (699) is rotatably connected to the first stabilizing plate (685); The operating platform (2) is provided with a control mechanism (7), the control mechanism (7) comprising a third motor (71), the third motor (71) being fixedly connected to the inside of the operating platform (2), the operating platform (2) being rotatably connected to a plug rod (72) inside, the plug rod (72) extending out of the outside of the operating platform (2), the plug rod (72) being integrally formed with a rectangular rod (73), the bottom of the connecting rod (63) being provided with a rectangular groove, the rectangular rod (73) extending into the inside of the rectangular groove and matching the rectangular groove, the plug rod (72) being fixedly connected to a bracket plate (74) outside, the bracket plate (74) being slidably connected to an extension plate (75) inside, the plug rod (72) being fixedly connected to a fourth gear (76) outside, the third motor (71) being fixedly connected to a fifth gear (77) via an output shaft, the fourth gear (76) being meshed with the fifth gear (77); The extension plate (75) extends outward from the support plate (74); a fixing block (78) is fixedly connected to the extension plate (75); the fixing block (78) is arranged at the rear side of the bending head (64); a cylinder (79) is fixedly connected inside the support plate (74); one end of the cylinder (79) is fixedly connected to the extension plate (75).

2. A pipe bending device for pipes according to claim 1, characterized in that: A threaded block (687) is arranged outside the bidirectional threaded hollow rod (692), the bidirectional threaded hollow rod (692) passes through the threaded block (687) and is connected to the threaded block (687) by threads, both sides of the frame plate (691) are fixedly connected to limit plates, the limit plates pass through the threaded block (687), one side of the threaded block (687) is fixedly connected to an intermediate plate (688), the intermediate plate (688) is fixedly connected to one side of the first outer ring plate (693), one side of the second outer ring plate (694) is fixedly connected to a limit rod (689), the limit rod (689) passes through the first outer ring plate (693), and the moving block (69) is fixedly connected to a first electric push rod (671) inside, and the first electric push rod (671) is fixedly connected to the frame plate (691).

3. A pipe bending device for pipes according to claim 1, characterized in that: A second rotating rod (672) is rotatably connected between the two first stabilizing plates (685), a second motor (673) is fixedly connected to the inner side of one of the first stabilizing plates (685), the second motor (673) is fixedly connected to one end of the second rotating rod (672) via an output shaft, and a second gear (674) is fixedly connected to the outside of both the first rotating rod (699) and the second rotating rod (672), and the two second gears (674) are meshed with each other.

4. A pipe bending device for pipes according to claim 1, characterized in that: The outside of the bidirectional threaded hollow rod (692) is fixedly connected to a third gear (675); the bottom of the inner side of the frame plate (691) is slidably connected to a movable plate (676); the top of the movable plate (676) is fixedly connected to a rack (677); the rack (677) is meshed with the third gear (675); an L-shaped plate is integrally formed on the rear side of the movable plate (676); the rear side of the frame plate (691) is fixedly connected to a second electric push rod (678); one end of the second electric push rod (678) is fixedly connected to the inner side of the L-shaped plate.

5. The pipe bending device for pipes according to claim 1, characterized in that: The top and bottom of the U-shaped plate (695) are fixedly connected to a friction ring (679); the inner side of the U-shaped plate (695) is rotatably connected to a shaft rod, the shaft rod passes through a guide wheel (696) and is fixedly connected to the guide wheel (696); the outer side of the shaft rod is fixedly connected to a friction block (661); the friction block (661) is arranged on the inner side of the friction ring (679) and is in contact with the friction ring (679).

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