Automatic pipe bending machine

Abstract

The invention relates to an automatic pipe bending machine which comprises a workbench, a pipe bending roller is rotationally arranged on the workbench, an abutting assembly is arranged beside the pipe bending roller and comprises an abutting block and an abutting air cylinder, and the abutting block is driven by the abutting air cylinder to slide in the direction close to or away from the pipe bending roller. The pipe fitting is clamped between the pipe bending roller and the abutting block, an adjusting block is arranged on the workbench, the abutting block and the abutting air cylinder are both arranged on the adjusting block, the adjusting block rotates around the pipe bending roller in the circumferential direction, and a driving assembly used for driving the adjusting block to rotate is arranged on the top face of the workbench. According to the technical scheme, the position of the abutting block can be conveniently adjusted, so that the bending angle of the bent pipe is changed according to needs.

Description

Technical Field

[0001] The invention relates to the field of pipe bending machines, in particular to an automatic pipe bending machine. Background Art

[0002] Pipe bending machines are commonly used machines in engineering installation processes to bend straight metal pipes into metal bent pipes suitable for installation applications.

[0003] In the related technology, the pipe bending machine includes a workbench, on which a bending roller, a clamping block and a limiting roller are arranged. The bending roller is rotatably arranged, and the clamping block clamps the pipe against the bending roller, and the clamping block rotates synchronously with the bending roller with the rotation axis of the bending roller as the center. The limiting rollers are located on both sides of the radial direction of the unbending part of the pipe, and limit the unbending part of the pipe so that the unbending part of the pipe does not rotate with the rotation of the bending roller.

[0004] When the staff bends the pipe, they first pass the pipe through the middle of the limiting roller and extend it out of the gap between the bending roller and the clamping block. The clamping block clamps the pipe and the bending roller, and then drives the bending roller to rotate to bend the pipe.

[0005] With respect to the above-mentioned related technologies, the inventor believes that the bending angle of the pipe fitting by the pipe bending machine is relatively single, and it is difficult to adjust the bending angle of the pipe fitting. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides an automatic pipe bending machine.

[0007] The present application provides an automatic pipe bending machine adopting the following technical solution: An automated pipe bending machine comprises a workbench, on which a pipe bending roller is rotatably arranged, a clamping assembly is arranged next to the pipe bending roller, the clamping assembly comprises a clamping block and a clamping cylinder, the clamping block slides toward or away from the pipe bending roller under the drive of the clamping cylinder, the pipe fitting is clamped between the pipe bending roller and the clamping block, an adjusting block is arranged on the workbench, the clamping block and the clamping cylinder are both arranged on the adjusting block, the adjusting block rotates around the circumference of the pipe bending roller, and a driving assembly for driving the adjusting block to rotate is arranged on the top surface of the workbench.

[0008] Preferably, a rotating motor is arranged under the workbench, and the rotating motor is fixed to the workbench through a mounting frame. The output shaft of the rotating motor rotates out of the workbench and is coaxially connected with a connecting shaft. A bearing is arranged on the connecting shaft, and the rotating part of the bearing is fixed to the connecting shaft. The fixed part of the bearing is fixed to the workbench and is coaxially connected to the pipe bending roller.

[0009] Preferably, the drive assembly includes a drive motor, a driving gear, a synchronous shaft, a driven gear, a synchronous belt, a drive gear, and a drive ring gear. The drive motor is fixed on a workbench, the driving gear is coaxially connected to the output shaft of the drive motor, the synchronous shaft is rotatably set on the workbench, the driven gear is coaxially connected to the synchronous shaft, the synchronous belt is simultaneously sleeved on the driving gear and the driven gear, the synchronous belt is simultaneously meshed with the driving gear and the driven gear, the driving gear is coaxially connected to the synchronous shaft, the drive ring gear is fixedly connected to the adjusting block, the tooth surface of the drive ring gear is located on the outer peripheral wall, and the drive gear is meshed with the outer peripheral wall of the drive ring gear.

[0010] Preferably, a limiting ring plate is arranged on the top surface of the workbench, and a limiting ring groove for the limiting ring plate to penetrate into is opened on the bottom surface of the driving gear ring, and the limiting ring plate and the limiting ring groove cooperate with each other and are both in a dovetail shape.

[0011] Preferably, a guide ring plate is arranged on the top surface of the workbench, and a guide ring groove for the guide ring plate to penetrate is opened on the bottom surface of the adjustment block.

[0012] Preferably, a guide block is arranged on the bottom surface of the pressing block, and a guide groove for the guide block to slide is provided on the top surface of the adjusting block, and the extension direction of the guide groove is arranged along the radial direction of the pipe bending roller.

[0013] Preferably, the guide block cooperates with the guide groove and both are dovetail-shaped.

[0014] Preferably, a first arc accommodating groove is provided on the outer peripheral wall of the tube bending roller, a second arc accommodating groove is provided on the side wall of the clamping block close to the pipe fitting, and the pipe fitting is located in the first arc accommodating groove and the second arc accommodating groove.

[0015] Preferably, a guide assembly is provided on the side of the clamping block away from the unbent portion of the pipe fitting, and the guide assembly includes two upper and lower guide plates arranged opposite to each other, the two guide plates are fixedly connected to the side wall of the clamping block, the two guide plates are symmetrically located on both sides of the pipe fitting in the radial direction, and the sides of the guide plates close to each other are curved and matched with the curvature of the outer wall of the pipe fitting.

[0016] Preferably, a mounting plate and a limiting assembly for limiting the unbent portion of the pipe are also vertically provided on the workbench; The limiting assembly includes a plurality of limiting rollers, which are rotatably connected to the mounting plate. The plurality of limiting rollers are located on both radial sides and the bottom of the unbent portion of the pipe. The axes of the limiting rollers located on both radial sides of the pipe are vertically arranged, and the axes of the limiting rollers located at the bottom of the pipe are horizontally arranged and perpendicular to the axis of the pipe. The peripheral side walls of the pipe are simultaneously in contact with the plurality of limiting rollers.

[0017] In summary, this application includes the following beneficial technical effects: 1. The driving motor drives the gear ring to rotate, driving the adjustment plate to rotate around the pipe bending roller to the appropriate position and then stop. Then the piston rod of the clamping cylinder extends to push the clamping block to slide to fit the outer wall of the pipe bending roller. Then the motor is turned to control the rotation of the pipe bending roller, driving the pipe fitting to move forward, so that the pipe fitting moves between the pipe bending roller and the clamping block and bends at a corresponding angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an automated pipe bending machine in an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the structure below the workbench in the embodiment of the present application.

[0020] Figure 3 It is a structural schematic diagram used to display the limit assembly in the embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the structure of the limiting ring plate used to illustrate the embodiment of the present application.

[0022] Figure 5 It is used to show in the embodiments of this application Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Explanation of the reference numerals: 1. workbench; 11. limiting ring plate; 12. guide ring plate; 2. bending roller; 21. arc accommodating groove one; 3. clamping assembly; 31. clamping block; 311. guide block; 312. arc accommodating groove two; 32. clamping cylinder; 4. adjusting block; 41. guide groove; 42. guide ring groove; 5. guide plate; 6. rotating motor; 61. connecting shaft; 62. bearing; 7. driving assembly; 71. driving motor; 72. driving gear; 73. synchronous shaft; 74. driven gear; 75. synchronous belt; 76. driving gear; 77. driving gear ring; 771. limiting ring groove; 8. limiting roller; 81. mounting plate; 9. pipe fitting. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-5 This application is described in further detail.

[0025] The embodiment of the present application discloses an automatic pipe bending machine.

[0026] Reference Figure 1-5The automatic pipe bending machine includes a workbench 1, on which a pipe bending roller 2 is rotatably arranged, and a clamping assembly 3 is arranged next to the pipe bending roller 2. The clamping assembly 3 includes a clamping block 31 and a clamping cylinder 32. The clamping block 31 slides toward or away from the pipe bending roller 2 under the drive of the clamping cylinder 32. The pipe fitting 9 is clamped between the pipe bending roller 2 and the clamping block 31. An adjusting block 4 is arranged on the workbench 1. The clamping block 31 and the clamping cylinder 32 are both arranged on the adjusting block 4. The clamping cylinder 32 is fixed on the adjusting block 4, and the piston rod of the clamping cylinder 32 is fixedly connected to the clamping block 31.

[0027] A guide block 311 is provided on the bottom surface of the clamping block 31, and a guide groove 41 for the guide block 311 to slide is provided on the top surface of the adjusting block 4. The extension direction of the guide groove 41 is arranged along the radial direction of the bending roller 2, thereby providing guidance for the movement of the clamping block 31. The guide block 311 cooperates with the guide groove 41 and both are dovetail-shaped, so that the clamping block 31 is not easy to separate from the adjusting block 4.

[0028] An arc accommodating groove 21 is provided on the outer peripheral wall of the tube bending roller 2, and an arc accommodating groove 212 is provided on the side wall of the clamping block 31 close to the tube 9. The tube 9 is located in the arc accommodating groove 21 and the arc accommodating groove 212, so that the tube 9 is not easily displaced up and down greatly to affect the tube bending effect of the tube 9.

[0029] A guide assembly is provided on the side of the clamping block 31 away from the unbent portion of the pipe fitting 9, and the guide assembly includes two upper and lower guide plates 5 which are arranged opposite to each other. The two guide plates 5 are fixedly connected to the side walls of the clamping block 31, and the two guide plates 5 are symmetrically located on both sides of the radial direction of the pipe fitting 9. The sides of the guide plates 5 which are close to each other are curved and matched with the curvature of the outer wall of the pipe fitting 9, so as to guide and limit the bent portion of the pipe fitting 9, further reducing the up and down displacement of the pipe fitting 9 and affecting the bending effect of the pipe fitting 9.

[0030] A rotating motor 6 is arranged below the workbench 1, and the rotating motor 6 is fixed to the workbench 1 through a mounting frame. The output shaft of the rotating motor 6 rotates out of the workbench 1 and is coaxially connected to a connecting shaft 61. A bearing 62 is arranged on the connecting shaft 61. The rotating part of the bearing 62 is fixed to the connecting shaft 61, and the fixed part of the bearing 62 is fixed to the workbench 1 and is coaxially connected to the pipe bending roller 2.

[0031] The adjusting block 4 rotates around the circumference of the bending roller 2, and a driving assembly 7 for driving the adjusting block 4 to rotate is provided on the top surface of the workbench 1. The driving assembly 7 includes a driving motor 71, a driving gear 72, a synchronous shaft 73, a driven gear 74, a synchronous toothed belt 75, a driving gear 76, and a driving ring gear 77. The driving motor 71 is fixed on the workbench 1, the driving gear 72 is coaxially connected to the output shaft of the driving motor 71, the synchronous shaft 73 is rotatably arranged on the workbench 1, the driven gear 74 is coaxially connected to the synchronous shaft 73, the synchronous toothed belt 75 is simultaneously sleeved on the driving gear 72 and the driven gear 74, the synchronous toothed belt 75 is simultaneously meshed with the driving gear 72 and the driven gear 74, the driving gear 76 is coaxially connected to the synchronous shaft 73, the driving ring gear 77 is fixedly connected to the adjusting block 4, the tooth surface of the driving ring gear 77 is located on the outer peripheral wall, and the driving gear 76 is meshed with the outer peripheral wall of the driving ring gear 77.

[0032] A limiting ring plate 11 is arranged on the top surface of the workbench 1, and a limiting ring groove 771 is opened on the bottom surface of the driving gear ring 77 for the limiting ring plate 11 to penetrate into. The limiting ring plate 11 and the limiting ring groove 771 cooperate with each other and are both in a dovetail shape to prevent the driving gear ring 77 from detaching from the workbench 1.

[0033] A guide ring plate 12 is arranged on the top surface of the workbench 1 , and a guide ring groove 42 for the guide ring plate 12 to penetrate into is opened on the bottom surface of the adjustment block 4 , thereby providing guidance for the movement of the adjustment block 4 .

[0034] The workbench 1 is also vertically provided with a mounting plate 81 and a limiting assembly for limiting the unbent portion of the pipe 9. The limiting assembly includes a plurality of limiting rollers 8, which are rotatably connected to the mounting plate 81. The plurality of limiting rollers 8 are located at both radial sides and the bottom of the unbent portion of the pipe 9. The axes of the limiting rollers 8 located at both radial sides of the pipe 9 are vertically arranged, and the axes of the limiting rollers 8 located at the bottom of the pipe 9 are horizontally arranged and perpendicular to the axis of the pipe 9. The peripheral side walls of the pipe 9 are simultaneously in contact with the plurality of limiting rollers 8.

[0035] When the unbent portion of the pipe 9 is bent by the pipe bending roller 2, a plurality of limiting rollers 8 limit and support the unbent portion of the pipe 9 in multiple directions, thereby improving the stability of the unbent portion of the pipe 9 during movement.

[0036] The implementation principle of an automated pipe bending machine in the embodiment of the present application is: The driving motor 71 drives the gear ring 77 to rotate, driving the adjustment plate to rotate around the pipe bending roller 2 to a suitable position and then stop, then the piston rod of the clamping cylinder 32 is extended to push the clamping block 31 to slide to fit the outer wall of the pipe bending roller 2, and then the motor 6 is turned to control the rotation of the pipe bending roller 2, driving the pipe fitting 9 to move forward, so that the pipe fitting 9 moves between the pipe bending roller 2 and the clamping block 31 and bends at a corresponding angle.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic pipe bending machine, characterized in that: The invention comprises a workbench (1), on which a pipe bending roller (2) is rotatably arranged, a pressing assembly (3) is arranged next to the pipe bending roller (2), the pressing assembly (3) comprises a pressing block (31) and a pressing cylinder (32), the pressing block (31) slides in a direction approaching or moving away from the pipe bending roller (2) under the drive of the pressing cylinder (32), a pipe fitting (9) is clamped between the pipe bending roller (2) and the pressing block (31), an adjusting block (4) is arranged on the workbench (1), the pressing block (31) and the pressing cylinder (32) are both arranged on the adjusting block (4), the adjusting block (4) rotates around the circumference of the pipe bending roller (2), and a driving assembly (7) for driving the adjusting block (4) to rotate is arranged on the top surface of the workbench (1).

2. The automatic pipe bending machine according to claim 1, characterized in that: A rotating motor (6) is arranged below the workbench (1), and the rotating motor (6) is fixed to the workbench (1) via a mounting frame. The output shaft of the rotating motor (6) rotates out of the workbench (1) and is coaxially connected to a connecting shaft (61). A bearing (62) is arranged on the connecting shaft (61), and the rotating part of the bearing (62) is fixed to the connecting shaft (61), and the fixed part of the bearing (62) is fixed to the workbench (1) and is coaxially connected to the pipe bending roller (2).

3. The automatic pipe bending machine according to claim 1, characterized in that: The driving assembly (7) comprises a driving motor (71), a driving gear (72), a synchronous shaft (73), a driven gear (74), a synchronous toothed belt (75), a driving gear (76), and a driving ring gear (77); the driving motor (71) is fixed on the workbench (1); the driving gear (72) is coaxially connected to the output shaft of the driving motor (71); the synchronous shaft (73) is rotatably arranged on the workbench (1); and the driven gear (74) is coaxially connected to the synchronous shaft ( The synchronous toothed belt (75) is simultaneously sleeved on the driving gear (72) and the driven gear (74), and the synchronous toothed belt (75) is simultaneously meshed with the driving gear (72) and the driven gear (74), the driving gear (76) is coaxially connected to the synchronous shaft (73), the driving gear ring (77) is fixedly connected to the adjusting block (4), the tooth surface of the driving gear ring (77) is located on the outer peripheral wall, and the driving gear (76) is meshed with the outer peripheral wall of the driving gear ring (77).

4. The automatic pipe bending machine according to claim 3, characterized in that: A limiting ring plate (11) is arranged on the top surface of the workbench (1), and a limiting ring groove (771) is provided on the bottom surface of the driving gear ring (77) for the limiting ring plate (11) to penetrate into. The limiting ring plate (11) and the limiting ring groove (771) cooperate with each other and are both in a dovetail shape.

5. The automatic pipe bending machine according to claim 1, characterized in that: A guide ring plate (12) is arranged on the top surface of the workbench (1), and a guide ring groove (42) for the guide ring plate (12) to penetrate is opened on the bottom surface of the adjustment block (4).

6. The automatic pipe bending machine according to claim 1, characterized in that: A guide block (311) is arranged on the bottom surface of the pressing block (31), and a guide groove (41) for the guide block (311) to slide is provided on the top surface of the adjusting block (4), and the extension direction of the guide groove (41) is arranged along the radial direction of the pipe bending roller (2).

7. The automatic pipe bending machine according to claim 6, characterized in that: The guide block (311) matches the guide groove (41) and both are dovetail-shaped.

8. The automatic pipe bending machine according to claim 1, characterized in that: The outer peripheral wall of the tube bending roller (2) is provided with an arc accommodating groove (21), the side wall of the abutting block (31) close to the tube (9) is provided with an arc accommodating groove (312), and the tube (9) is located in the arc accommodating groove (21) and the arc accommodating groove (312).

9. The automatic pipe bending machine according to claim 1, characterized in that: A guide assembly is provided on the side of the abutting block (31) away from the unbent portion of the pipe (9), and the guide assembly comprises two upper and lower guide plates (5) arranged opposite to each other, the two guide plates (5) being fixedly connected to the side wall of the abutting block (31), the two guide plates (5) being symmetrically located on both sides of the pipe (9) in the radial direction, and the sides of the guide plates (5) close to each other being in the form of an arc surface and adapted to the curvature of the outer peripheral wall of the pipe (9).

10. The automatic pipe bending machine according to claim 1, characterized in that: The workbench (1) is also vertically provided with a mounting plate (81) and a limiting component for limiting the unbent portion of the pipe (9); The limiting assembly comprises a plurality of limiting rollers (8), the limiting rollers (8) being rotatably connected to the mounting plate (81), the plurality of limiting rollers (8) being located on both radial sides and the bottom of the unbent portion of the pipe (9), the axes of the limiting rollers (8) located on both radial sides of the pipe (9) being arranged vertically, the axes of the limiting rollers (8) located at the bottom of the pipe (9) being arranged horizontally and perpendicular to the axes of the pipe (9), and the peripheral side walls of the pipe (9) being simultaneously in contact with the plurality of limiting rollers (8).

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