Pipe fitting bending device
By designing a pipe bending device and precisely controlling the bending angle and heat treatment, the problem of loosening caused by inaccurate angles of pipes in sofa frame production was solved, improving the fit and stability of pipes with other components and reducing the risk of breakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, the bending angle of tubing cannot be precisely controlled during the production of sofa frames, leading to problems of loosening and instability during assembly.
A pipe bending device was designed, comprising components such as a worktable, iron plate, fixed shaft, lever plate, positioning pressure roller and grinding disc. By precisely controlling the bending angle and heat treatment, the fit between the pipe and other components is improved, and the bending force is reduced to avoid cracking.
It improves the stability and reliability of pipe assembly, avoids loosening and misalignment caused by angular deviation, ensures the fit between pipe and mold, and reduces the risk of pipe breakage during bending.
Smart Images
Figure CN224087655U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pipe bending technical field, specifically a pipe bending device. BACKGROUND
[0002] The frame of the sofa is the key part of supporting the whole sofa, which is usually composed of metal pipes, and the pipe bending device can be used to bend the linear metal pipes into various shapes according to the design requirements, such as the armrest frame, backrest frame and base frame of the sofa.
[0003] During the production of the pipe of the sofa frame, the pipe needs to be bent to different degrees, and the accurate bending angle is the key to ensure the stability of the frame. If the bending angle cannot be controlled, the assembly of the pipe during assembly will be loose, which will cause the sofa frame to be unstable. Therefore, a pipe bending device is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the utility model provides a pipe bending device.
[0005] The utility model discloses a pipe bending device, which comprises a workbench, an iron plate is fixedly connected to the side wall of the workbench, a fixed shaft is fixedly connected to the side wall of the iron plate, a plane bearing is arranged on the side wall of the fixed shaft, a force arm plate is arranged on the top of the plane bearing, the force arm plate is rotatably connected to the side wall of the fixed shaft, a ball bearing is arranged on the side wall of the force arm plate, a guide disc is arranged on the side wall of the force arm plate, the guide disc is connected to the fixed shaft in a sleeved manner, a positioning pressure roller is arranged on the side wall of the force arm plate, a pressure roller shaft is rotatably connected to the inner side wall of the force arm plate, the positioning pressure roller and the pressure roller shaft are in sliding connection, an extended arm pipe is fixedly connected to the side wall of the force arm plate, a track plate is slidably connected to the side wall of the iron plate, and an adjusting pressure roller is fixedly connected to the side wall of the track plate.
[0006] Preferably, a plurality of positioning blocks are fixedly connected to the side wall of the workbench, first motors are symmetrically arranged on the side wall of the positioning blocks, conveying wheels are arranged at the output end of the first motors, fixed plate frames are symmetrically arranged on the side wall of the workbench, wrapping blocks are fixedly connected to the end of the fixed plate frames, and grinding pieces are fixedly connected to the side wall of the wrapping blocks.
[0007] Preferably, a power sliding groove is formed in the side wall of the workbench, a second motor is fixedly connected to the side wall of the power sliding groove, a threaded rod is arranged at the output end of the second motor, a power sliding block is slidably connected to the surface of the threaded rod, the inner side wall of the power sliding groove is slidably connected to the power sliding block, a power plate is fixedly connected to the end of the power sliding block, and the extended arm pipe is slidably connected to the side wall of the power plate.
[0008] Preferably, the iron plate side wall is fixedly connected with a limiting frame; the inner side wall of the iron plate is rotationally connected with a positioning bolt assembly; and the inner side wall of the limiting frame is rotationally connected with a bolt rod.
[0009] Preferably, the workbench side wall is provided with a guide groove; the side wall of the guide groove is slidably connected with a guide block; the side wall of the guide block is fixedly connected with a rubber sleeve; and the rubber sleeve is wrapped on the pipe fitting.
[0010] Preferably, the middle part of the bolt rod is sleevedly connected with a spring; and the spring is fixedly connected with the limiting frame.
[0011] The utility model discloses beneficial effect:
[0012] The utility model provides a pipe fitting bending device, through setting up force arm board and adjusting pressure wheel, through improving control bending angle, can promote pipe fitting perfect fit with other components when assembling, avoid the problem such as slack, misplacement caused by angle deviation, improve the stability and reliability of product whole.
[0013] The utility model provides a pipe fitting bending device, through setting up conveying wheel and polishing piece, through polishing and heating treatment to pipe fitting before bending, through polishing, pipe fitting surface can be more even, thereby guarantee the adhesion of pipe fitting and mould when bending, can reduce pipe fitting hardness through heating, reduce the bending force required, and reduce the possibility of crack or rupture of pipe fitting due to excessive stress. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model.
[0015] In the drawings:
[0016] Figure 1 It is the perspective view of the utility model;
[0017] Figure 2 It is the perspective view of the plane bearing in the utility model;
[0018] Figure 3 It is the perspective view of the polishing piece in the utility model.
[0019] Legend:
[0020] 1, workbench; 11, iron plate; 12, fixed shaft; 13, plane bearing; 14, force arm plate; 15, ball bearing; 16, guide disc; 17, positioning pressure wheel; 18, pressure wheel shaft; 19, lengthened arm pipe; 101, track plate; 102, adjusting pressure wheel; 2, positioning block; 21, first motor; 22, conveying wheel; 23, fixed plate frame; 24, wrapping block; 25, polishing piece; 3, power sliding groove; 31, second motor; 32, threaded rod; 33, power sliding block; 34, power plate; 4, limiting frame; 41, positioning bolt assembly; 42, bolt rod; 5, guide groove; 51, guide block; 52, rubber sleeve; 6, spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0022] Specific embodiments are given below.
[0023] Please refer to Figure 1 , Figure 2The utility model provides a kind of pipe bending device, including workbench 1;Its characterized in that: the iron plate 11 is fixedly connected in the side wall of workbench 1;The fixed shaft 12 is fixedly connected in the side wall of iron plate 11;The plane bearing 13 is arranged in the side wall of fixed shaft 12;The force arm plate 14 is arranged in the top of plane bearing 13;The force arm plate 14 is rotatably connected in the side wall of fixed shaft 12;The ball bearing 15 is arranged in the side wall of force arm plate 14;The guide disc 16 is arranged in the side wall of force arm plate 14;The guide disc 16 is connected on fixed shaft 12 in sleeve;The positioning pressure wheel 17 is arranged in the side wall of force arm plate 14;The pressure wheel shaft 18 is rotatably connected in the inner side wall of force arm plate 14;The positioning pressure wheel 17 and pressure wheel shaft 18 are slidingly connected;The lengthened arm pipe 19 is fixedly connected in the side wall of force arm plate 14;The track plate 101 is slidingly connected in the side wall of iron plate 11;The adjusting pressure wheel 102 is fixedly connected in the side wall of track plate 101;When working, staff slides into the gap between guide disc 16 and positioning pressure wheel 17, and is attached with guide disc 16 and positioning pressure wheel 17, when the one end of pipe is slid into more than adjusting pressure wheel 102, the placing work to pipe is completed, and pipe is attached with adjusting pressure wheel 102 simultaneously, then, staff rotates to one side by controlling lengthened arm pipe 19, and then force arm plate 14 can be driven to rotate in the same direction, and pipe is bent by positioning pressure wheel 17 in the attachment of positioning pressure wheel 17 and guide disc 16, at this time, adjusting pressure wheel 102 can limit the one side of pipe, so that the one side of pipe keeps straight, staff controls the rotation angle of lengthened arm pipe 19, and then the rotation angle of force arm plate 14 can be controlled, and then the bending degree of pipe can be controlled, the stability of pipe bending when force arm plate 14 rotates can be enhanced by plane bearing 13 and ball bearing 15, so as to improve the control degree of staff to bending operation, pipe is bent according to requirement, the design can improve pipe to perfectly fit with other components when assembling by improving the control bending angle, avoid loose, misplacement and other problems caused by angle deviation, improve the stability and reliability of product as a whole.
[0024] Further, as Figure 1 、 Figure 3As shown, the side wall of the workbench 1 is fixed with a plurality of positioning blocks 2; the side wall of the positioning block 2 is symmetrically provided with a first motor 21; the output end of the first motor 21 is provided with a conveying wheel 22; the side wall of the workbench 1 is symmetrically provided with a fixed plate frame 23; the end of the fixed plate frame 23 is fixedly connected with a wrapping block 24; the side wall of the wrapping block 24 is fixedly connected with a grinding piece 25; during work, the first motor 21 is started to drive the conveying wheel 22 to rotate, then the pipe can be placed in the middle of the two conveying wheels 22, and the conveying wheel 22 can convey the pipe, during the conveying process of the pipe, the pipe wrapped by the two wrapping blocks 24 can be polished by the grinding piece 25, and the impurities on the surface of the pipe can be removed by polishing, so that the surface of the pipe is clean, which provides a good basis for subsequent bending operation, and through a length of polishing, the polished pipe is in a heated state, since the pipe material has high hardness and relatively poor plasticity and toughness at room temperature, heating can reduce the hardness of the material and improve its plasticity and toughness, so that the pipe is more likely to deform plastically during bending, and the design can make the surface of the pipe more flat through polishing before bending the pipe, so as to ensure the adhesion of the pipe and the mold during bending, and the hardness of the pipe can be reduced through heating, the bending force required can be reduced, and the possibility of cracks or breakage of the pipe due to excessive stress can be reduced.
[0025] Further, as shown in Figure 1 The side wall of the workbench 1 is provided with a power sliding groove 3; the side wall of the power sliding groove 3 is fixedly connected with a second motor 31; the output end of the second motor 31 is provided with a threaded rod 32; the surface of the threaded rod 32 is slidably connected with a power sliding block 33; the inner side wall of the power sliding groove 3 is slidably connected with a power sliding block 33; the end of the power sliding block 33 is fixedly connected with a power plate 34; the side wall of the power plate 34 is slidably connected with an extension arm pipe 19; during work, when the worker controls the extension arm pipe 19 to drive the power arm plate 14 to rotate to bend the pipe, the second motor 31 is started to drive the threaded rod 32 to rotate, and then the power sliding block 33 can be driven to slide in the power sliding groove 3 to the bending direction, at this time, the worker can press the power plate 34 with his hand to improve the force when the power sliding block 33 drives the power plate 34 to slide, so as to improve the convenience of the worker when rotating the extension arm pipe 19, and the design can improve the force of the worker when bending by adding the power pushing device of the extension arm pipe, so as to improve the controllability of the worker when the bending resistance is high.
[0026] Further, as shown in Figure 2As shown, the iron plate 11 side wall is fixedly connected with a limiting frame 4; the inner side wall of the iron plate 11 is rotationally connected with a positioning bolt assembly 41; the inner side wall of the limiting frame 4 is rotationally connected with a bolt rod 42; in working, the limiting frame 4 can limit the track plate 101 to slide in the horizontal direction only; when the position of the track plate 101 is determined, the track plate 101 can be fixed by tightening the positioning bolt assembly 41, and the bolt rod 42 is rotated to top the track plate 101 to provide a blocking force to one side of the track plate 101, thereby reducing the movement of the track plate 101. The design can fix the track plate by limiting the track plate, facilitate the position adjustment of the track plate 101, and further make the adjusting pressure wheel 102 in different positions to facilitate the bending of pipes of different widths, thereby improving the versatility.
[0027] Further, as shown in Figure 1 As shown, the side wall of the workbench 1 is provided with a guide groove 5; the side wall of the guide groove 5 is slidably connected with a guide block 51; the side wall of the guide block 51 is fixedly connected with a rubber sleeve 52; the rubber sleeve 52 is wrapped around the pipe; in working, when the worker bends the pipe, the hand can press on the rubber sleeve 52, and with the bending of the pipe, one side of the pipe will be bent in the direction of the track of the guide groove 5, and at this time, the guide block 51 can be driven by the rubber sleeve 52 to slide in the track of the guide groove 5, thereby controlling one side of the pipe. The design can control one side of the pipe by wrapping and fixing one side of the pipe through the bending direction consistent guide groove, facilitate the worker to control one side of the pipe according to the bending of the pipe, and can adjust the pipe at any time, thereby improving the controllability of the pipe bending.
[0028] Further, as shown in Figure 2 As shown, the middle part of the bolt rod 42 is connected with a spring 6; the spring 6 is fixedly connected with the limiting frame 4; in working, when the bolt rod 42 is rotated to top and fix the track plate 101, the spring 6 is compressed, and the rebound force of the spring 6 can enhance the top effect of the track plate 101. The design can enhance the force effect of the bolt rod on the track plate, thereby improving the stability of the track plate and reducing the movement of the track plate.
[0029] Working principle: the worker slides the pipe through the gap between the guide disc 16 and the positioning pressure roller 17, and fits it with the guide disc 16 and the positioning pressure roller 17. When the end of the pipe is slid into the gap beyond the adjusting pressure roller 102, the placement of the pipe is completed, and the pipe is fitted with the adjusting pressure roller 102. Then, the worker rotates the lengthened arm pipe 19 to one side, which drives the force arm plate 14 to rotate in the same direction. With the rotation of the force arm plate 14, the positioning pressure roller 17 can bend the pipe at the fitting position of the positioning pressure roller 17 and the guide disc 16. At this time, the adjusting pressure roller 102 can limit one side of the pipe to keep it straight. The worker controls the rotation angle of the lengthened arm pipe 19 to control the rotation angle of the force arm plate 14, and then controls the bending degree of the pipe. The plain bearing 13 and the ball bearing 15 can enhance the stability of the pipe bending when the force arm plate 14 rotates, thereby improving the control degree of the worker on the bending operation, facilitating the bending of the pipe according to the demand. The first motor 21 is started to drive the conveying wheel 22 to rotate, and then the pipe can be placed between the two conveying wheels 22. The pipe can be conveyed by the conveying wheel 22. In the process of conveying the pipe, the pipe wrapped by the wrapping block 24 on both sides will be polished by the polishing piece 25. The polishing process can remove impurities on the surface of the pipe to make the surface of the pipe clean, providing a good foundation for subsequent bending operation. A length of polishing can make the polished pipe in a heated state. Since the pipe material has high hardness and relatively poor plasticity and toughness at room temperature, heating can reduce the hardness of the material and improve its plasticity and toughness, making the pipe more likely to deform plastically during bending. In the process of the worker rotating the lengthened arm pipe 19 to drive the force arm plate 14 to bend the pipe, the second motor 31 is started to drive the threaded rod 32 to rotate, which in turn drives the power sliding block 33 to slide in the power sliding groove 3 in the bending direction. At this time, the worker presses the power plate 34 with his hand to improve the force when the power sliding block 33 drives the power plate 34 to slide, thereby improving the convenience of the worker in operating the lengthened arm pipe 19. The limiting frame 4 can limit the track plate 101 to slide only in the horizontal direction. When the position of the track plate 101 is determined, the positioning bolt assembly 41 is tightened to fix the track plate 101, and the bolt rod 42 is rotated to top the track plate 101 to provide a blocking force to one side of the track plate 101, reducing the movement of the track plate 101. When the worker bends the pipe, he can press the rubber sleeve 52 with his hand. With the bending of the pipe, one side of the pipe will be bent in the direction of the track of the guide groove 5. At this time, the guide block 51 can be driven by the rubber sleeve 52 to slide in the track of the guide groove 5, thereby controlling one side of the pipe.When the rail plate 101 is fixed by rotating the bolt rod 42, the spring 6 is compressed, and the rebound force of the spring 6 can enhance the effect of the rail plate 101.
[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A pipe bending device, comprising a workbench (1); characterized in that: The workbench (1) has an iron plate (11) fixedly connected to its side wall; a fixed shaft (12) is fixedly connected to the side wall of the iron plate (11); a plane bearing (13) is provided on the side wall of the fixed shaft (12); a lever plate (14) is provided on the top of the plane bearing (13); the lever plate (14) is rotatably connected to the side wall of the fixed shaft (12); a ball bearing (15) is provided on the side wall of the lever plate (14); a guide plate (16) is provided on the side wall of the lever plate (14); the guide plate... (16) Fitted onto the fixed shaft (12); the side wall of the lever arm plate (14) is provided with a positioning pressure roller (17); the inner side wall of the lever arm plate (14) is rotatably connected with a pressure roller shaft (18); the positioning pressure roller (17) and the pressure roller shaft (18) are slidably connected; the side wall of the lever arm plate (14) is fixedly connected with an extension arm tube (19); the side wall of the iron plate (11) is slidably connected with a track plate (101); the side wall of the track plate (101) is fixedly connected with an adjusting pressure roller (102).
2. The pipe bending device as described in claim 1, characterized in that: The workbench (1) has multiple sets of positioning blocks (2) fixedly connected to its side wall; the positioning blocks (2) have a first motor (21) symmetrically arranged on their side walls; the output end of the first motor (21) is provided with a conveyor wheel (22); the workbench (1) has a fixed plate frame (23) symmetrically arranged on its side wall; the fixed plate frame (23) has a wrapping block (24) fixedly connected to its end; the wrapping block (24) has a grinding disc (25) fixedly connected to its side wall.
3. The pipe bending device as described in claim 1, characterized in that: The workbench (1) has a power slide groove (3) on its side wall; a second motor (31) is fixedly connected to the side wall of the power slide groove (3); a threaded rod (32) is provided at the output end of the second motor (31); a power slider (33) is slidably connected to the surface of the threaded rod (32); a power slider (33) is slidably connected to the inner side wall of the power slide groove (3); a power plate (34) is fixedly connected to the end of the power slider (33); an extension arm tube (19) is slidably connected to the side wall of the power plate (34).
4. The pipe bending device as described in claim 1, characterized in that: A limiting frame (4) is fixedly connected to the side wall of the iron plate (11); a positioning bolt assembly (41) is rotatably connected to the inner side wall of the iron plate (11); and a bolt rod (42) is rotatably connected to the inner side wall of the limiting frame (4).
5. A pipe bending device as described in claim 1, characterized in that: The workbench (1) has a guide groove (5) on its side wall; a guide block (51) is slidably connected to the side wall of the guide groove (5); a rubber sleeve (52) is fixed to the side wall of the guide block (51); the rubber sleeve (52) is wrapped around the pipe.
6. A pipe bending device as described in claim 4, characterized in that: A spring (6) is fitted into the middle of the bolt rod (42); the spring (6) is fixedly connected to the limiting frame (4).