A high-precision fully automatic pipe bending machine

Abstract

The present invention discloses a high-precision fully automatic pipe bending machine, which aims to provide a high-precision fully automatic pipe bending machine with high feeding efficiency, capable of straightening and protecting metal straight pipes, and with adjustable bending angle and controllable shape. The machine comprises a machine body, on which a feeding device, a bending device and a feeding device are sequentially arranged, and is characterized in that: the feeding device comprises a workbench, on which a horizontal feeding assembly, a vertical feeding assembly, a straightening assembly and a protective assembly are sequentially arranged, the horizontal feeding assembly comprises a horizontal supporting plate arranged on the workbench and a plurality of horizontal feeding wheels fixed on the horizontal supporting plate, the horizontal feeding wheels are cross-arranged, the vertical feeding assembly comprises a vertical supporting plate arranged on the workbench and a plurality of vertical feeding wheels fixed on the vertical supporting plate, the vertical feeding wheels are cross-arranged, and cleaning sticks are arranged on both the horizontal supporting plate and the vertical supporting plate.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending machines, and in particular to a high-precision full-automatic pipe bending machine. Background Art

[0002] The pipe bender is a commonly used machine in the engineering installation process. It is used to bend metal straight pipes into metal bent pipes suitable for installation applications. When the pipe bender is working, the two ends of the metal straight pipe are usually fixed first, and then the piston rod of the hydraulic cylinder extends and squeezes the middle part of the metal straight pipe to bend the metal straight pipe.

[0003] The feeding device of the existing high-precision full-automatic pipe bending machine has the following defects: 1. Feeding: Since the metal straight tube is subjected to large force during the bending process, and the traditional feeding device lacks corresponding protective measures, it is easy to cause other parts of the straight tube to be stressed and even deformed, affecting the service life; it is difficult to straighten other parts of the metal straight tube during the feeding and bending process, and the metal straight tube is easily affected by surface burrs during the feeding process, resulting in poor bending accuracy. 2. Bending: During the bending process of the metal straight tube, the bending angle is difficult to control, and the bending curvature is difficult to control, that is, the bending shape is fixed and single, and the metal straight tube is easily deformed due to stress during the bending process, affecting the service life of the bent tube; 3. Cutting and unloading: The unloading method is single and has low adaptability, the cutting angle is inconvenient to adjust, the unloading efficiency is low, the cutting edge replacement is cumbersome, and there are many inconveniences in operation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-precision fully automatic pipe bending machine which has high feeding efficiency, can straighten and protect metal straight pipes, and has adjustable bending angles and controllable shapes of metal straight pipes.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-precision fully automatic pipe bending machine comprises a machine body, on which a feeding device, a bending device and a feeding device are sequentially arranged, the feeding device comprises a workbench, on which a horizontal feeding assembly, a vertical feeding assembly, a straightening assembly and a protective assembly are sequentially arranged, the horizontal feeding assembly comprises a horizontal supporting plate arranged on the workbench and a plurality of horizontal feeding wheels fixed on the horizontal supporting plate, the horizontal feeding wheels are cross-arranged, the vertical feeding assembly comprises a vertical supporting plate arranged on the workbench and a plurality of vertical feeding wheels fixed on the vertical supporting plate, the vertical feeding wheels are cross-arranged, and cleaning sticks are arranged on both the horizontal supporting plate and the vertical supporting plate.

[0007] Preferably, the straightening assembly comprises a straightening plate and a plurality of straightening members and a lifting platform arranged on the straightening plate, and the straightening members comprise an upper straightening wheel linked to the lifting platform and a lower straightening wheel fixed on the straightening plate.

[0008] Preferably, the protection assembly includes an upper protection plate, a lower protection plate and a plurality of protection wheels arranged between the upper protection plate and the lower protection plate, and the protection wheels are concave and form protection grooves.

[0009] Preferably, the bending device includes a base plate, a bending assembly is arranged on the base plate, a square groove and an arc groove are opened on the base plate, the bending assembly includes an adjustment plate, an adjustment rod, a bending round head arranged on the adjustment plate and an adjustment block fixed on the arc groove, one end of the adjustment rod is fixed on the adjustment plate, and the other end passes through the adjustment block and is fixed, and the protective assembly is fixed on the square groove.

[0010] Preferably, a plurality of grooves are evenly arranged on the bending round head, and baffles are inserted into the grooves.

[0011] Preferably, the feeding device includes a frame, on which a feeding assembly and a driving assembly are provided, the feeding assembly includes a feeding group slidingly fitted on the frame and a first driving cylinder driving the feeding group to move horizontally, the feeding group includes a cutting body, a mechanical arm, a support frame and a second driving cylinder driving the support frame to move vertically, one end of the mechanical arm is fixed to the cutting body, and the other end is hinged to the support frame, the cutting body includes a cutting frame and a cutting edge fixed to the mechanical arm, and an insert is detachably connected between the cutting frame and the cutting edge.

[0012] Preferably, the driving assembly includes a support platform and a rocker arm that are slidably matched with the frame, and the end of the rocker arm is connected to a fixing piece, and the fixing piece is fixed to the bottom plate.

[0013] Preferably, a controller is provided on the machine body.

[0014] Beneficial effects of the present invention:

[0015] The horizontal feed component and the vertical feed component can be used to squeeze and remove the burrs on the surface of the metal straight tube during the feeding process. The burrs are squeezed by the horizontal and vertical feed wheels, and the cleaning stick can directly remove the burrs attached to the surface. The horizontal feed plus the vertical feed ensures the position of the metal straight tube and avoids deviation, which greatly improves the accuracy of the bent tube. The setting of the straightening component can straighten the metal straight tube during the feeding process to ensure the correct position of the bend, avoid bending errors, and further improve the accuracy of the bent tube. The setting of the protective component increases the contact fixing surface and reduces stress to avoid deformation caused by the large force on the metal straight tube during the bending process, thereby greatly improving the service life of the bent tube.

[0016] The bending device cooperates with the bending component on the arc groove, that is, the position of the bending round head can be changed by lifting the height of the adjusting rod to achieve the effect of adjustable bending angle, and the relative position of the bending round head can be changed by adjusting the relative position of the adjusting block in the arc groove to achieve the effect of adjustable bending angle. The two methods can evenly realize the adjustment of the bending head and have a wide adaptability. The metal straight tube is bent by the bending head, and the baffle plate inserted on the bending round head can change the bending direction of the straight tube. The shape of the bent metal straight tube can be changed by inserting baffle plates in different positions to realize the regulation of the bending shape, which greatly improves the adaptability.

[0017] Due to the coordinated design of the blanking component and the driving component, the cutting edge can implement blanking and cutting from multiple directions and angles, with diverse blanking methods, high blanking efficiency and wide adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a high-precision fully automatic pipe bending machine proposed by the present invention Figure 1 ;

[0019] Figure 2 A schematic diagram of the structure of a high-precision fully automatic pipe bending machine proposed by the present invention Figure 2 . DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-2A high-precision fully automatic pipe bending machine comprises a machine body 1, on which a feeding device 2, a bending device 3 and a feeding device 4 are sequentially arranged, the feeding device 2 comprises a workbench 21, on which a horizontal feeding assembly 22, a vertical feeding assembly 23, a straightening assembly 24 and a protective assembly 25 are sequentially arranged, the horizontal feeding assembly 22 comprises a horizontal supporting plate 221 arranged on the workbench 21 and a plurality of horizontal feeding wheels 222 fixed on the horizontal supporting plate 221, the horizontal feeding wheels 222 are cross-arranged, the vertical feeding assembly 23 comprises a plurality of horizontal feeding wheels 222 arranged on the workbench The vertical support plate 231 on 21 and a plurality of vertical feed wheels 232 fixed on the vertical support plate 231 are cross-arranged, and cleaning rods 26 are arranged on both the horizontal support plate 221 and the vertical support plate 231. When the metal straight tube passes through the horizontal feed assembly 22 and the vertical feed assembly 23, the horizontal feed wheel 222 and the vertical feed wheel 232 extrude and feed the metal straight tube. At the same time, the cleaning rod 26 is rotated and bent to remove burrs on the surface of the metal straight tube passing through the horizontal feed assembly 22 and the vertical feed assembly 23, thereby ensuring the accuracy of the bending tube.

[0022] The straightening assembly 24 includes a straightening plate 241 and a plurality of straightening members 242 and a lifting platform 243 arranged on the straightening plate 241. The straightening member 241 includes an upper straightening wheel 244 linked to the lifting platform 243 and a lower straightening wheel 245 fixed on the straightening plate 241. After the metal straight pipe passes through the horizontal feeding assembly 22 and the vertical feeding assembly 23, it enters the straightening assembly 24. By controlling the lifting platform 243 so that the upper straightening member 244 abuts against and squeezes the metal straight pipe, the metal straight pipe is located between the upper straightening wheel 244 and the lower straightening wheel 245 and runs and continues to feed, so as to ensure the position of the metal straight pipe, avoid deviation, and improve the accuracy of the bending pipe.

[0023] The protection component 25 includes an upper protection plate 251, a lower protection plate 252 and a plurality of protection wheels 253 arranged between the upper protection plate 251 and the lower protection plate 252. The protection wheel 253 is concave and has a protection groove 254. The metal straight pipe passes through the straightening component 24 and enters the protection component 25 to realize the bending work. The design of the protection groove 254 on the protection wheel 253 on the protection plate can greatly increase the contact fixing surface, reduce stress to avoid deformation of the metal straight pipe caused by the large force during the bending process, and greatly improve the service life of the bent pipe. The double protection design of the upper protection plate 251 and the lower protection plate 252 makes the bending process of the metal straight pipe very stable.

[0024] The bending device 3 includes a base plate 31, on which a bending assembly 32 is arranged. The base plate 31 is provided with a square groove 33 and an arc groove 34. The bending assembly 32 includes an adjustment plate 321, an adjustment rod 322, a bending round head 323 arranged on the adjustment plate 321 and an adjustment block 324 fixed on the arc groove 34. One end of the adjustment rod 322 is fixed on the adjustment plate 321, and the other end passes through the adjustment block 324 and is fixed. The protective assembly 25 is fixed on the square groove 33. The adjustment process of the bending assembly 32 can be achieved by loosening the adjustment rod 322 fixed on the adjustment block 324, and pulling up or pressing down the adjustment rod 322 can drive the adjustment plate 321 to deflect so that the position of the bending round head 323 moves to achieve the regulation of the bending angle, or the adjustment block 324 can be adjusted at different positions on the arc groove 34 to drive the adjustment plate 321 to deflect so that the position of the bending round head 323 moves to achieve the regulation of the bending angle. The dual regulation has a wide adaptability.

[0025] A plurality of grooves 325 are evenly arranged on the bending round head 323, and baffles 326 are inserted into the grooves 325. The metal straight tube is bent through the bending round head 323. Since the baffle inserted into the bending round head can change the bending direction of the straight tube, the angle is changed by inserting baffles 326 at different positions to change the shape of the bent metal straight tube to achieve regulation of the bending shape.

[0026] The unloading device 4 includes a frame 41, on which a unloading assembly 42 and a driving assembly 43 are arranged. The unloading assembly 42 includes a unloading group 421 slidably fitted on the frame 41 and a first driving cylinder 422 driving the unloading group 421 to move horizontally. The unloading group 421 includes a cutting body 4211, a mechanical arm 4212, a support frame 4213 and a second driving cylinder 4214 driving the support frame 4213 to move vertically. One end of the mechanical arm 4212 is fixedly connected to the cutting body 4211, and the other end is hinged on the support frame 4213. The cutting body 4211 includes a cutting body fixed on the mechanical arm 4212. The cutting frame 5 and the cutting edge 6 are detachably connected with an insert 7. The cutting body 4211 can be driven by the first driving cylinder 422 to move in the horizontal direction, and can be driven by the second driving cylinder 4212 to move in the vertical direction. The cutting angle can be adjusted by the linkage between the two driving cylinders to achieve multi-angle and multi-directional cutting with wide adaptability. Due to the structural design of the insert 7, the position of the cutting edge 6 on the cutting frame 5 after replacement can be directly ensured by the insert 7, so that the cutting edge 6 can be replaced on the cutting frame 5 very conveniently without considering the angle relationship and position relationship of the cutting edge 6.

[0027] The driving assembly 43 includes a support platform 431 and a rocker arm 432 that are slidably matched with the frame 41. The end of the rocker arm 432 is connected to a fixing part 433, and the fixing part 433 is fixed on the base plate 31. Since the fixing part 433 is fixed on the base plate 31, driving the rocker arm 432 can realize the overall sliding of the frame 41 on the support platform 431 to realize the displacement of the blanking assembly 42, further ensuring multi-angle cutting of the cutting body.

[0028] A controller 8 is provided on the machine body 1, and the controller 8 controls the operation of the pipe bending machine.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision fully automatic pipe bending machine, comprising a machine body, on which a feeding device, a bending device and a feeding device are sequentially arranged, characterized in that: The feeding device includes a workbench, on which a horizontal feeding assembly, a vertical feeding assembly, a straightening assembly and a guard assembly are sequentially arranged on the workbench, the horizontal feeding assembly includes a horizontal supporting plate arranged on the workbench and a plurality of horizontal feeding wheels fixed on the horizontal supporting plate, the horizontal feeding wheels are cross-arranged, the vertical feeding assembly includes a vertical supporting plate arranged on the workbench and a plurality of vertical feeding wheels fixed on the vertical supporting plate, the vertical feeding wheels are cross-arranged, and cleaning sticks are arranged on both the horizontal supporting plate and the vertical supporting plate, the straightening assembly includes a straightening plate and a plurality of straightening pieces and a lifting platform arranged on the straightening plate, the straightening piece includes an upper straightening wheel linked to the lifting platform and a lower straightening wheel fixed on the straightening plate, the guard assembly includes an upper guard plate, a lower guard plate and a plurality of guard wheels arranged between the upper guard plate and the lower guard plate, the guard wheel is concave and forms a guard The adjusting block is fixed on the adjusting plate, and the adjusting block is fixed on the adjusting plate, and the adjusting block is fixed on the adjusting plate. The adjusting block is fixed on the adjusting plate, and the adjusting block is fixed on the adjusting plate. The adjusting block is adjusted by loosening the fixing of the adjusting block on the adjusting plate, pulling up or pressing down the adjusting rod to drive the adjusting plate to deviate so as to move the position of the bending round head and thus realize the regulation of the bending angle, or by adjusting the different positions of the adjusting block on the arc-shaped groove to drive the adjusting plate to deviate so as to move the position of the bending round head and thus realize the regulation of the bending angle. The protecting block is fixed on the square groove, and a plurality of grooves are evenly arranged on the bending round head. The groove is plugged with a baffle. The angle is changed by plugging in baffles at different positions and the shape of the metal straight tube after bending is changed to realize the regulation of the bending shape.

2. A high-precision fully automatic pipe bending machine according to claim 1, characterized in that: The feeding device includes a frame, on which a feeding assembly and a driving assembly are arranged, the feeding assembly includes a feeding group slidingly fitted on the frame and a first driving cylinder driving the feeding group to move horizontally, the feeding group includes a cutting body, a mechanical arm, a support frame and a second driving cylinder driving the support frame to move vertically, one end of the mechanical arm is fixed to the cutting body, and the other end is hinged to the support frame, the cutting body includes a cutting frame and a cutting edge fixed to the mechanical arm, and an insert is detachably connected between the cutting frame and the cutting edge, and the position of the cutting edge on the cutting frame after replacement is ensured by the insert.

3. A high-precision fully automatic pipe bending machine according to claim 2, characterized in that: The driving assembly includes a support platform and a rocker arm that slide with the frame. The end of the rocker arm is connected to a fixing piece, and the fixing piece is fixed to the base plate. Since the fixing piece is fixed to the base plate, the driving rocker arm can realize the overall sliding of the frame on the support platform to realize the displacement of the unloading assembly.

4. A high-precision fully automatic pipe bending machine according to claim 1, characterized in that: A controller is arranged on the machine body.

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