Automatic pipe bending machine

Abstract

The present invention discloses an automatic pipe bending machine, comprising a frame, a rotating hydraulic cylinder is arranged on the frame, a mold is arranged on the rotating hydraulic cylinder, a first positioning groove is arranged on the side of the mold, a support frame is arranged on the rotating hydraulic cylinder, a first cylinder is arranged on the support frame, a first push block is arranged on the push rod of the first cylinder, a second positioning groove corresponding to the first positioning groove is arranged on the side of the first push block, a second cylinder is arranged on the frame, a second push block is arranged on the push rod of the second cylinder, a third positioning groove corresponding to the first positioning groove is arranged on the side of the second push block, a connecting rod is arranged on the frame, a third cylinder is arranged on the support frame, a push plate is arranged on the push rod of the third cylinder, and the push plate is used to push the product into the first positioning groove. The automatic pipe bending machine of the present invention has a simple and compact structure, a high degree of automation, high production efficiency, and saves labor costs.

Description

Technical Field

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

[0002] At present, the existing pipe bending machines mainly use a combination of manual and equipment single-action steps to complete single and double bending forming. Its disadvantages are: it can only rely on manual insertion and unloading of materials, manual application of stretching oil, and repetition and production frequency will lead to slow response, which is very likely to cause safety hazards; the existing pipe bending machines include hydraulic power motors, clamping molds, round hole sliding shaping beads, bead connecting rods, plane rotating 0°-100° adjustable hydraulic swing arms, and double-position start buttons. When bending the pipe, lift the beads and connecting rods with your left hand above the interference shielding position of the mold. Use the brush in your right hand to pick up the stretching oil and apply it 360° to the beads and connecting rods. Then use your right hand to change to a stainless steel straight pipe. Use your naked eyes to identify the direction of the weld inside the pipe. With the weld facing the inner bend center line of the formed pipe within a range of plus or minus 10°-45°, insert the stainless steel straight pipe into the beads connecting rod to the distance limit mark line. Press the start switch with both hands at the same time, and the mold clamp hydraulic swing arm rotates. During the rotation of the mold swing arm, hold the straight pipe part exposed from the mold with your right hand, wait for the hydraulic swing arm to stop rotating one way, and the mold is withdrawn to complete the single bend forming. Take out the single-bend finished product with your right hand, press the start switch with both hands at the same time, and the mold clamp hydraulic swing arm rotates and retracts to the starting state. Turn the single-bend finished product around and insert the unformed straight pipe section into the beads connecting rod to the limit position of the mold groove. If it is not inserted in place manually, it needs to be knocked into place with an auxiliary gravity block. Press the start switch with both hands at the same time, the hydraulic swing arm of the mold clamp rotates, and the mold withdraws to complete the double bending. When the hydraulic swing arm stops rotating in one direction, press the start switch with both hands again, the hydraulic swing arm of the mold clamp rotates, withdraws and returns to the starting state, and the double bending product is taken out with the right hand. The existing pipe bending machine has a low degree of automation, low production efficiency, and high labor costs. Summary of the invention

[0003] The object of the present invention is to provide an automatic pipe bending machine with high production efficiency.

[0004] In order to achieve the above-mentioned objectives, the technical solution of the present invention provides an automatic pipe bending machine, including a frame, a rotating hydraulic cylinder is provided on the frame, a mold is provided on the rotating hydraulic cylinder, a first positioning groove is provided on the side of the mold, a support frame is provided on the rotating hydraulic cylinder, a first cylinder is provided on the support frame, a first push block is provided on the push rod of the first cylinder, a second positioning groove corresponding to the first positioning groove is provided on the side of the first push block, a second cylinder is provided on the frame, a second push block is provided on the push rod of the second cylinder, a third positioning groove corresponding to the first positioning groove is provided on the side of the second push block, a connecting rod is provided on the frame, the connecting rod is used to position the product, a third cylinder is provided on the support frame, a push plate is provided on the push rod of the third cylinder, and the push plate is used to push the product into the first positioning groove.

[0005] As an improved solution, a bead is provided at one end of the connecting rod close to the mold, and the connecting rod is connected to the product through the bead for positioning.

[0006] As an improved solution, the pipe bending machine also includes an oil brushing device, which includes a vertical fourth cylinder and a horizontal fifth cylinder arranged on the frame, the push rod of the fourth cylinder is provided with a clamping portion, and the clamping portion is used to clamp the connecting rod, the frame is provided with a guide rail parallel to the fifth cylinder, the guide rail is provided with a slider, the slider is provided with a first fixed seat, the first fixed seat is connected to the push rod of the fifth cylinder, the first fixed seat is provided with an oil brushing machine, and the oil brushing port of the oil brushing machine is evenly provided with brushes.

[0007] As an improved solution, the pipe bending machine also includes a robot arm, which is used to pick up and place products.

[0008] As an improved solution, the manipulator includes a base, a first motor is provided on the base, a first connecting rod is provided at the upper end of the base, a second motor is provided at the upper end of the first connecting rod, a second connecting rod is provided on the rotating shaft of the second motor, the upper end of the second connecting rod is connected to the rotating shaft of the third motor, a third connecting rod is provided on the third motor, a fourth motor is provided on the third connecting rod, a fourth connecting rod is provided on the rotating shaft of the fourth motor, a fifth motor is provided on the fourth connecting rod, a support is provided on the rotating shaft of the fifth motor, and a first finger cylinder and a second finger cylinder are provided on the support.

[0009] As an improved solution, the pipe bending machine also includes a flipping device, which includes a rotating cylinder arranged on the frame, a second fixed seat is arranged on the rotating axis of the rotating cylinder, and a fourth positioning groove for placing the product is arranged on the second fixed seat.

[0010] As an improved solution, a first motor is arranged below the second fixing seat, and a limiting block is arranged on the rotating shaft of the first motor, and the limiting block is used to position the product.

[0011] As an improved solution, the pipe bending machine also includes a loading device, which includes a storage bin arranged on the frame, a sixth cylinder is arranged below the storage bin, an L-shaped push plate is arranged on the push rod of the sixth cylinder, a lower bin is arranged on the frame, a discharge port is arranged below the lower bin, and a limiting plate is arranged at the discharge port.

[0012] As an improved solution, a visual inspection camera is provided on the frame, a seventh cylinder is provided below the frame, a support plate is provided on the push rod of the seventh cylinder, two bearings are provided at both ends of the support plate, a second motor is provided on the frame, a roller is provided on the rotating shaft of the second motor, and the roller is used to drive the product to rotate.

[0013] As an improved solution, a visual inspection camera and a visual inspection display are provided on the frame, and the visual inspection camera is used to detect the position of the welding mark on the inner wall of the straight tube product.

[0014] In summary, the use of the technical solution of the present invention has the following beneficial effects: the automatic pipe bending machine of the present invention has a simple and compact structure, does not require manual participation, has a high degree of automation, high production efficiency, saves labor costs, reduces manual labor intensity, and avoids safety hazards. The pipe bending machine automatically applies stretching oil to the connecting rod and beads through an oil brushing device, the feeding device automatically discharges materials, the visual inspection camera accurately identifies the weld position on the surface of the product, the second motor drives the product to rotate through the roller and accurately stops the weld on the surface of the product at the required position, and the robot automatically clamps the product instead of manual labor and puts it on the mold for pipe bending, thereby achieving the purpose of industrial automated production and increasing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention provides a structural schematic diagram of an automatic pipe bending machine;

[0016] Figure 2 It is a structural schematic diagram of the oil brushing device provided by the present invention from a first viewing angle;

[0017] Figure 3 The present invention provides Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a structural schematic diagram of the oil brushing device provided by the present invention from a second viewing angle;

[0019] Figure 5 The present invention provides Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 6 It is a structural schematic diagram of the product provided by the present invention;

[0021] Figure 7 It is a structural schematic diagram of the oil brushing device provided by the present invention from a third viewing angle;

[0022] Figure 8 The present invention provides Figure 7 A partial enlarged view of point C in the middle;

[0023] Fig. 9 It is a structural schematic diagram of a manipulator provided by the present invention;

[0024] Fig.10 It is a structural schematic diagram of a feeding device provided by the present invention from a first viewing angle;

[0025] Fig.11 It is a structural schematic diagram of a feeding device provided by the present invention from a second viewing angle;

[0026] Fig.12 It is a partial enlarged view of the feeding device provided by the present invention;

[0027] Explanation of the accompanying drawings: 1-frame, 2-oil brushing device, 3-manipulator, 4-feeding device, 5-mold, 6-connecting rod, 8-visualized visual inspection display, 9-fourth cylinder, 10-clamping part, 11-second fixed seat, 12-rotating cylinder, 13-product, 14-first motor, 15-third cylinder, 16-push plate, 17-first cylinder, 18-first push block, 19-second cylinder, 20-second push block, 21-fifth cylinder, 22-oil brushing machine, 23-fourth positioning groove, 24-limiting block, 25-first positioning groove, 26-rotating hydraulic cylinder, 27-second positioning groove, 28-first fixed seat, 29- Guide rail, 30-beads, 31-third positioning slot, 32-second finger cylinder, 33-first finger cylinder, 34-fifth motor, 35-fourth connecting rod, 36-third connecting rod, 37-fourth motor, 38-second connecting rod, 39-first connecting rod, 40-base, 41-first motor, 42-second motor, 43-third motor, 44-storage bin, 45-product, 46-sixth cylinder, 47-bracket, 48-L-type push plate, 49-visual inspection camera, 50-unloading bin, 51-bearing, 52-limiting plate, 53-seventh cylinder, 54-support plate, 55-roller, 56-second motor, 57-support frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0029] In the present invention, for a clearer description, the following explanation is made: the terms "lower end", "upper end", "vertical", "horizontal", "side", "above", "below" and the like in the text indicating directions or positional relationships are directions or positional relationships set based on the drawings, and are only for the convenience of clearly describing the present invention, and do not indicate or imply that the structures or components referred to must have a specific direction or be constructed in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", and "seventh" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0030] See also Figures 1 to 8 The present embodiment provides an automatic pipe bending machine, including a frame 1, a rotating hydraulic cylinder 26 is provided on the frame 1, a mold 5 is provided on the rotating hydraulic cylinder 26, a first positioning groove 25 is provided on the side of the mold 5, a support frame 57 is provided on the rotating hydraulic cylinder 26, a first cylinder 17 is provided on the support frame 57, a first push block 18 is provided on the push rod of the first cylinder 17, a second positioning groove 27 corresponding to the first positioning groove 25 is provided on the side of the first push block 18, a second cylinder 19 is provided on the frame 1, a second push block 20 is provided on the push rod of the second cylinder 19, a third positioning groove 31 corresponding to the first positioning groove 25 is provided on the side of the second push block 20, a connecting rod 6 is provided on the frame 1, the connecting rod 6 is used to position the product 13, a third cylinder 15 is provided on the support frame 57, a push plate 16 is provided on the push rod of the third cylinder 15, and the push plate 16 is used to push the product 13 into the first positioning groove 25. After the product 13 is placed on the support frame 57, the third cylinder 15 drives the push plate 16 to push the product 13 into the first positioning groove 25, and docks the product 13 with the connecting rod 6. Then the first cylinder 17 drives the first push block 18 to close the mold with the mold 5 to clamp the product 13. The second cylinder 19 drives the second push block 20 to close the mold with the mold 5 to clamp the product 13 and the connecting rod 6. Finally, the second push block 20 remains stationary, and the rotating hydraulic cylinder 26 drives the mold 5 and the first push block 18 to rotate 90 degrees, thereby bending the product 13 into a tube.

[0031] In this embodiment, see Figures 7 and 8A bead 30 is provided at one end of the connecting rod 6 close to the mold 5, and the connecting rod 6 is connected to the product 13 through the bead 30 for positioning. The pipe bending machine also includes an oil brushing device 2, which includes a vertical fourth cylinder 9 and a horizontal fifth cylinder 21 arranged on the frame 1, and a clamping part 10 is provided on the push rod of the fourth cylinder 9, and the clamping part 10 is used to clamp the connecting rod 6. A guide rail 29 parallel to the fifth cylinder 21 is provided on the frame 1, and a slider is provided on the guide rail 29. A first fixed seat 28 is provided on the slider, and the first fixed seat 28 is connected to the push rod of the fifth cylinder 21. An oil brushing machine 22 is provided on the first fixed seat 28, and the oil brushing port of the oil brushing machine 22 is evenly provided with brushes. Specifically, the fourth cylinder 9 drives the connecting rod 6 and the bead 30 to rise through the clamping part 10, and the oil brushing port of the oil brushing machine 22 starts to rotate and brush oil from the end of the connecting rod 6 with the bead 30, and the fifth cylinder 21 drives the oil brushing machine 22 to slide on the guide rail 29, thereby brushing stretching oil on the outer surfaces of the connecting rod 6 and the bead 30 in turn.

[0032] See also Figure 1 , Fig. 9 The pipe bending machine of this embodiment also includes a manipulator 3, which is used to pick up and place the product 13. The manipulator 3 includes a base 40, on which a first motor 41 is arranged, a first connecting rod 39 is arranged at the upper end of the base 40, a second motor 42 is arranged at the upper end of the first connecting rod 39, a second connecting rod 38 is arranged on the rotating shaft of the second motor 42, and the upper end of the second connecting rod 38 is connected to the rotating shaft of the third motor 43, a third connecting rod 36 is arranged on the third motor 43, a fourth motor 37 is arranged on the third connecting rod 36, a fourth connecting rod 35 is arranged on the rotating shaft of the fourth motor 37, a fifth motor 34 is arranged on the fourth connecting rod 35, a support is arranged on the rotating shaft of the fifth motor 34, and a first finger cylinder 33 and a second finger cylinder 32 are arranged on the support. The first finger cylinder 33 of the manipulator 3 clamps the product 13 from the feeding device 4 and places it on the support frame 57 for pipe bending, as shown in FIG. Figure 6 As shown, after both ends of the product 13 have been bent into tubes, the second finger cylinder 32 of the manipulator 3 clamps the ends of the product 13 for cutting. Since both ends of the product 13 have been bent into tubes, it is not easy for the first finger cylinder 33 to clamp, so a smaller second finger cylinder 32 is used so that the clamping part of the second finger cylinder 32 can be inserted into the tube of the product 13 to clamp the product 13 for cutting.

[0033] See also Figures 2 to 5 , Figures 7 and 8The pipe bending machine of this embodiment further includes a flipping device, which includes a rotating cylinder 12 disposed on the frame 1, a second fixing seat 11 disposed on the rotating shaft of the rotating cylinder 12, and a fourth positioning groove 23 for placing the product 13 disposed on the second fixing seat 11. A first motor 14 is disposed below the second fixing seat 11, and a limit block 24 is disposed on the rotating shaft of the first motor 14, and the limit block 24 is used to position the product 13. Specifically, when one end of the product 13 has been bent into a tube and the other end of the product 13 needs to be bent into a tube, the manipulator 3 removes the product 13 from the mold 4 and places it in the fourth positioning groove 23 of the second fixed seat 11. The first motor 14 drives the limit block 24 to rotate and clamp the product 13 to prevent the product 13 from falling during the rotation. The rotating cylinder 12 drives the product 13 to rotate 180 degrees, and turns the product 13 over to bend the other end. After the product 13 is turned over, the manipulator 3 clamps the product 13 again and places it on the mold 5, thereby bending the other end of the product 13.

[0034] See also Figures 10 to 12 The pipe bending machine of this embodiment also includes a loading device 4, which includes a storage bin 44 arranged on the frame 1, a sixth cylinder 46 is arranged below the storage bin 44, an L-shaped push plate 48 is arranged on the push rod of the sixth cylinder 46, a bracket 47 is arranged on the frame 1, the L-shaped push plate 48 is located on the bracket 47, a lower bin 50 is arranged on the frame 1, a discharge port is arranged below the lower bin 50, and a limiting plate 52 is arranged at the discharge port, the sixth cylinder 46 drives the L-shaped push plate 48 to push the straight pipe product 13 on the storage bin 44 onto the lower bin 50. Specifically, the frame 1 is provided with a visual inspection camera 49 for detecting the position of the welding mark on the inner wall of the straight tube product 13. The visual inspection camera 49 adopts a high-resolution camera and multiple sets of adjustable-distance lenses to prevent the influence of interfering light sources. A seventh cylinder 53 is provided below the frame 1, and a support plate 54 is provided on the push rod of the seventh cylinder 53. Two bearings 51 are provided at both ends of the support plate 54. A second motor 56 is provided on the frame 1, and a roller 55 is provided on the rotating shaft of the second motor 56. The roller 55 is used to drive the product 13 to rotate. A visual visual inspection display 8 is provided on the frame 1. The straight tube product 13 is discharged from the discharge port of the discharge bin 50, and the limit plate 52 can effectively prevent the straight tube product 13 from rolling out. Finally, the straight tube product 13 rolls between the two bearings 51, and then the seventh cylinder 53 pushes the support plate 54 to rise, so that the surface of the straight tube product 13 is in close contact with the surface of the roller 55 of the second motor 56, and the visual inspection camera 49 accurately identifies the position of the weld on the surface of the straight tube product 13, and then the second motor 56 drives the straight tube product 13 to rotate through the roller 55 to accurately stop the weld on the surface of the product 13 at the required position, so that the robot 3 can clamp the straight tube product 13 for bending.

[0035] In summary, the use of the technical solution of the present invention has the following beneficial effects: the automatic pipe bending machine of the present invention has a simple and compact structure, does not require manual participation, has a high degree of automation, has high production efficiency, saves labor costs, reduces manual labor intensity, and avoids safety hazards. The pipe bending machine automatically applies stretching oil to the connecting rod 6 and the beads 30 through the oil brushing device 2, the feeding device 4 automatically discharges and unloads materials, the visual inspection camera 49 accurately identifies the weld position on the surface of the product 13, the second motor 56 drives the product 13 to rotate through the roller 55 and accurately stops the weld on the surface of the product 13 at the required position, and the manipulator 3 automatically clamps the product 13 instead of manual labor and puts it on the mold 5 for pipe bending, thereby achieving the purpose of industrial automated production and increasing production.

[0036] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An automatic pipe bending machine, comprising a frame, characterized in that: The frame is provided with a rotating hydraulic cylinder, a mold is provided on the rotating hydraulic cylinder, a first positioning groove is provided on the side of the mold, a supporting frame is provided on the rotating hydraulic cylinder, a first cylinder is provided on the supporting frame, a first push block is provided on the push rod of the first cylinder, a second positioning groove corresponding to the first positioning groove is provided on the side of the first push block, a second cylinder is provided on the frame, a second push block is provided on the push rod of the second cylinder, a third positioning groove corresponding to the first positioning groove is provided on the side of the second push block, a connecting rod is provided on the frame, the connecting rod is used to position the product, a third cylinder is provided on the supporting frame, a push plate is provided on the push rod of the third cylinder, and the push plate is used to push the product into the first positioning groove; The connecting rod is provided with a bead at one end close to the mold, and the connecting rod is connected to the product through the bead for positioning; The pipe bending machine also includes an oil brushing device, which includes a vertical fourth cylinder and a horizontal fifth cylinder arranged on the frame, a clamping portion is arranged on the push rod of the fourth cylinder, and the clamping portion is used to clamp the connecting rod, a guide rail parallel to the fifth cylinder is arranged on the frame, a slider is arranged on the guide rail, a first fixed seat is arranged on the slider, the first fixed seat is connected to the push rod of the fifth cylinder, an oil brushing machine is arranged on the first fixed seat, and the oil brushing port of the oil brushing machine is evenly provided with brushes.

2. The automatic pipe bending machine according to claim 1, characterized in that: The pipe bending machine also includes a manipulator, which is used to pick up and place products.

3. The automatic pipe bending machine according to claim 2, characterized in that: The manipulator includes a base, a first motor is arranged on the base, a first connecting rod is arranged on the upper end of the base, a second motor is arranged on the upper end of the first connecting rod, a second connecting rod is arranged on the rotating shaft of the second motor, the upper end of the second connecting rod is connected to the rotating shaft of the third motor, a third connecting rod is arranged on the third motor, a fourth motor is arranged on the third connecting rod, a fourth connecting rod is arranged on the rotating shaft of the fourth motor, a fifth motor is arranged on the fourth connecting rod, a support is arranged on the rotating shaft of the fifth motor, and a first finger cylinder and a second finger cylinder are arranged on the support.

4. The automatic pipe bending machine according to claim 3, characterized in that: The pipe bending machine also includes a flipping device, which includes a rotating cylinder arranged on the frame, a second fixing seat is arranged on the rotating shaft of the rotating cylinder, and a fourth positioning groove for placing the product is arranged on the second fixing seat.

5. The automatic pipe bending machine according to claim 4, characterized in that: A first motor is disposed below the second fixing seat, and a limiting block is disposed on the rotating shaft of the first motor, wherein the limiting block is used for positioning the product.

6. The automatic pipe bending machine according to claim 5, characterized in that: The pipe bending machine also includes a feeding device, which includes a storage bin arranged on the frame, a sixth cylinder is arranged below the storage bin, an L-shaped push plate is arranged on the push rod of the sixth cylinder, a lower bin is arranged on the frame, a discharge port is arranged below the lower bin, and a limiting plate is arranged at the discharge port.

7. An automatic pipe bending machine according to claim 6, characterized in that: A visual inspection camera is arranged on the frame, a seventh cylinder is arranged below the frame, a support plate is arranged on the push rod of the seventh cylinder, two bearings are arranged at both ends of the support plate, a second motor is arranged on the frame, a roller is arranged on the rotating shaft of the second motor, and the roller is used to drive the product to rotate.

8. The automatic pipe bending machine according to claim 7, characterized in that: The frame is provided with a visual inspection camera and a visual inspection display, and the visual inspection camera is used to detect the position of the welding mark on the inner wall of the straight tube product.

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