Bending machine with adjustable bending angle

Abstract

The utility model belongs to the technical field of bending machines, and particularly relates to a bending-angle-adjustable bending machine which comprises a working table plate, supporting legs are arranged at the four corners of the lower side of the working table plate, a high-speed-ratio speed reducer is arranged on one side of the upper side face of the working table plate, and a motor is arranged at the input end of the high-speed-ratio speed reducer. A bending adjusting mechanism is arranged at the output end of the high-speed-ratio speed reducer and comprises a shaft rod, a blocking disc, a first bending wheel, a stop block and a first nut. When the bending angle needs to be adjusted, the motor is started, the output end of the motor is decelerated through the high-speed-ratio speed reducer and then drives the shaft rod to rotate slowly, the shaft rod drives the first bending wheel to rotate slowly, the first bending wheel drives the stopping block to rotate, and when the stopping block rotates to the needed angle, the angle of the first bending wheel can be changed at any time according to needs when a bent pipe is machined. And therefore, the bending angle of the same pipe fitting can be quickly adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending machines, and particularly relates to a bending machine with adjustable bending angle. Background Art

[0002] When processing bent pipe fittings, corresponding bending equipment is required. The pipe fittings are squeezed into the bending wheel, and then the pipe fittings are extruded in the bending direction by the pressing wheel. The pipe fittings will be bent along the bending wheel. However, currently, the bending wheel is generally fixedly arranged, and the angle is not convenient to adjust at any time. When performing bending processing on the same pipe fitting at different angles, it is rather troublesome to adjust the angle of the bending wheel. Summary of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to provide a bending machine with adjustable bending angle, which solves the problems that the current bending wheel is generally fixedly arranged, the angle is not convenient to adjust at any time, and it is rather troublesome to adjust the angle of the bending wheel when performing bending processing on the same pipe fitting at different angles.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a bending machine with adjustable bending angle, including a workbench plate. Four corners of the lower side of the workbench plate are respectively provided with legs. One side of the upper surface of the workbench plate is provided with a high-speed ratio reducer. The input end of the high-speed ratio reducer is provided with a motor, and the output end of the high-speed ratio reducer is provided with a bending adjustment mechanism. The bending adjustment mechanism includes a shaft rod, a retaining disc, a first bending wheel, a stop block and a first nut. The shaft rod is connected with the output end of the high-speed ratio reducer. A retaining disc is fixedly arranged on the side of the shaft rod close to the high-speed ratio reducer. A first bending wheel is arranged on the shaft rod on the side of the retaining disc away from the high-speed ratio reducer. A first nut is threadedly arranged on the shaft rod on the side of the first bending wheel away from the retaining disc. A stop block is arranged on the side surface of the first bending wheel, and the stop block is flush with the tangent direction of the outer side surface of the first bending wheel. A rotating head is rotatably arranged at one end of the shaft rod away from the high-speed ratio reducer. A pressing wheel mechanism is arranged on the side surface of the rotating head. The pressing wheel mechanism includes a bolt. The bolt penetrates through the rotating head and rotatably arranges a connecting column. A side rod is arranged on the side of the connecting column close to the high-speed ratio reducer. A pressing wheel is sleeved on the outer side of the side rod. Second nuts are threadedly arranged on both sides of the side rod with respect to the pressing wheel. A handle rod is arranged at one end of the connecting column away from the bolt.

[0005] The beneficial effect of the utility model is: when it is necessary to adjust the bending angle, start the motor. The output end of the motor drives the shaft rod to rotate slowly after being decelerated by the high-speed ratio reducer. The shaft rod drives the first bending wheel to rotate slowly, and the first bending wheel drives the stop block to rotate. Just stop when it rotates to the required angle. It is possible to change the angle of the first bending wheel at any time according to the need when processing and bending pipe fittings, so as to facilitate quickly adjusting the bending angle of the same pipe fitting.

[0006] For facilitating different bending moments for pipe fittings;

[0007] As a further improvement of the above technical solution: between the retaining disc and the first nut, in addition to the first bending wheel, a second bending wheel and a third bending wheel are provided, and stop blocks are provided on the sides of the second bending wheel and the third bending wheel.

[0008] The beneficial effect of this improvement is: facilitating different bending moments for pipe fittings.

[0009] For structurally supporting the shaft rod;

[0010] As a further improvement of the above technical solution: spacer rings are provided between the first bending wheel, the second bending wheel and the third bending wheel, the spacer rings are sleeved on the outside of the shaft rod, and support rods are provided between the lower sides of the spacer rings and the workbench plate.

[0011] The beneficial effect of this improvement is: facilitating the structural support of the shaft rod when bending the pipe fitting upward, and preventing the shaft rod from being bent under force.

[0012] For keeping the first bending wheel, the second bending wheel and the third bending wheel stable relative to the shaft rod;

[0013] As a further improvement of the above technical solution: friction teeth are provided on the contact surfaces of the joints between the first bending wheel, the second bending wheel and the third bending wheel and the shaft rod, and the inner diameter of the spacer ring is greater than the outer circumference of the friction teeth of the shaft rod.

[0014] The beneficial effect of this improvement is: for keeping the first bending wheel, the second bending wheel and the third bending wheel stable relative to the shaft rod, preventing rotation and angle change during bending, and the inner diameter of the spacer ring being greater than the outer circumference of the friction teeth of the shaft rod does not affect the extraction of the shaft rod from the inside of the spacer ring.

[0015] For ensuring that the pipe fitting can pass above the pressing wheel;

[0016] As a further improvement of the above technical solution: a notch is provided on the workbench plate directly below the pressing wheel mechanism.

[0017] The beneficial effect of this improvement is: for turning the bolt and the handle rod to the lowest position to ensure that the pipe fitting can pass above the pressing wheel.

[0018] For supporting the pipe fitting during bending;

[0019] As a further improvement of the above technical solution: a support plate is provided on the workbench plate on the side away from the pressing wheel mechanism of the bending adjustment mechanism, and electric hydraulic telescopic rods are symmetrically provided on the lower side of the workbench plate, and the output ends of the electric hydraulic telescopic rods penetrate through the workbench plate and are fixedly connected to the support plate.

[0020] The beneficial effects of this improvement are as follows: The electric hydraulic telescopic rod is set to push the supporting plate to the height corresponding to the bending of the first bending wheel, the second bending wheel, and the third bending wheel, for supporting the pipe fittings during bending.

[0021] In order to fix the device to the ground;

[0022] As a further improvement of the above technical solution: Fixed plates are provided at the lower ends of the legs.

[0023] The beneficial effects of this improvement are as follows: The device is fixed to the ground through the fixed plates to maintain the stability of the device during bending.

[0024] In order to facilitate the determination of the adjusted angle value;

[0025] As a further improvement of the above technical solution: Angle scale grooves are evenly provided on the outer side of the retaining disc, a benchmark is provided on the side of the high reduction ratio speed reducer, and the benchmark is directly opposite to the upper center of the retaining disc.

[0026] The beneficial effects of this improvement are as follows: It is convenient to determine the adjusted angle value.

[0027] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the present utility model Figure 1 ;

[0029] Figure 2 It is a schematic structural diagram of the present utility model Figure 2 ;

[0030] Figure 3 It is a schematic structural diagram of the bending adjustment mechanism in the present utility model;

[0031] Figure 4 It is a schematic structural diagram of the pressure wheel mechanism in the present utility model;

[0032] In the figure: 1, workbench plate; 2, legs; 3, high reduction ratio speed reducer; 4, motor; 5, shaft rod; 6, retaining disc; 7, first bending wheel; 8, second bending wheel; 9, third bending wheel; 10, stop block; 11, first nut; 12, rotating head; 13, bolt; 14, connecting column; 15, side rod; 16, pressure wheel; 17, second nut; 18, handle rod; 19, notch; 20, supporting plate; 21, electric hydraulic telescopic rod; 22, fixed plate; 23, spacer ring; 24, support rod; 25, benchmark. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0034] As Figure 1 — Figure 4As shown: A bending angle adjustable bending machine, including a workbench plate 1, with legs 2 provided at the four corners on the lower side of the workbench plate 1. On one side of the upper surface of the workbench plate 1, there is a high-speed ratio reducer 3. An electric motor 4 is provided at the input end of the high-speed ratio reducer 3, and a bending adjustment mechanism is provided at the output end of the high-speed ratio reducer 3. The bending adjustment mechanism includes a shaft rod 5, a retaining disc 6, a first bending wheel 7, a stop block 10, and a first nut 11. The shaft rod 5 is connected to the output end of the high-speed ratio reducer 3. A retaining disc 6 is fixedly provided on the side of the shaft rod 5 close to the high-speed ratio reducer 3. A first bending wheel 7 is provided on the shaft rod 5 on the side of the retaining disc 6 away from the high-speed ratio reducer 3. A first nut 11 is threadedly provided on the shaft rod 5 on the side of the first bending wheel 7 away from the retaining disc 6. A stop block 10 is provided on the side surface of the first bending wheel 7, and the stop block 10 is flush with the tangent direction of the outer side surface of the first bending wheel 7. A rotating head 12 is rotatably provided at one end of the shaft rod 5 away from the high-speed ratio reducer 3, and a pressing wheel mechanism is provided on the side surface of the rotating head 12. The pressing wheel mechanism includes a bolt 13, a connecting column 14 is rotatably provided through the rotating head 12 by the bolt 13. A side rod 15 is provided on the side of the connecting column 14 close to the high-speed ratio reducer 3. A pressing wheel 16 is sleeved on the outer side of the side rod 15. Second nuts 17 are threadedly provided on both sides of the side rod 15 with respect to the pressing wheel 16. A handle rod 18 is provided at one end of the connecting column 14 away from the bolt 13. When it is necessary to adjust the bending angle, start the electric motor 4,The output end of the motor 4 drives the shaft rod 5 to rotate slowly after being decelerated by the high-speed ratio reducer 3. The shaft rod 5 drives the first bending wheel 7 to rotate slowly, and the first bending wheel 7 drives the stop block 10 to rotate. It can be stopped when it rotates to the required angle. When processing bent pipe fittings, the angle of the first bending wheel 7 can be changed at any time according to needs, so as to facilitate the quick adjustment of the bending angle of the same pipe fitting. Between the retaining disc 6 and the first nut 11, there are also a second bending wheel 8 and a third bending wheel 9 in addition to the first bending wheel 7. Stop blocks 10 are arranged on the sides of the second bending wheel 8 and the third bending wheel 9, which is convenient for performing different bending moments on the pipe fittings. Separation rings 23 are arranged between the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9. The separation rings 23 are sleeved on the outside of the shaft rod 5. Between the lower side of the separation rings 23 and the workbench plate 1, support rods 24 are arranged, which is convenient for structurally supporting the shaft rod 5 when bending the pipe fitting upward to avoid the shaft rod 5 being bent under force. At the contact surfaces of the insertions of the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9 with the shaft rod 5, friction teeth are arranged. The inner diameter of the separation ring 23 is larger than the outer circumference of the friction teeth of the shaft rod 5, which is used to keep the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9 stable relative to the shaft rod 5 and avoid rotation and angle change during bending. The inner diameter of the separation ring 23 is larger than the outer circumference of the friction teeth of the shaft rod 5, which does not affect the extraction of the shaft rod 5 from the inside of the separation ring 23. A notch 19 is opened in the workbench plate 1 directly below the pressing wheel mechanism, which is used to make the bolt 13 and the handle rod 18 turn to the lowest position to ensure that the pipe fitting can pass through the upper side of the pressing wheel 16. A support plate 20 is arranged on the side of the workbench plate 1 away from the pressing wheel mechanism of the bending adjustment mechanism. Symmetrically arranged electric hydraulic telescopic rods 21 are arranged on the lower side of the workbench plate 1. The output ends of the electric hydraulic telescopic rods 21 penetrate the workbench plate 1 and are fixedly connected with the support plate 20. The electric hydraulic telescopic rods 21 are set to push up the support plate 20 to the height corresponding to the bending of the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9, which is used to support the pipe fitting during bending. Fixed pieces 22 are arranged at the lower ends of the legs 2, and the device is fixed to the ground through the fixed pieces 22 to maintain the stability of the device during bending. Angle scale grooves are evenly arranged on the outside of the retaining disc 6. A marking rod 25 is arranged on the side of the high-speed ratio reducer 3. The marking rod 25 is directly opposite to the center of the upper side of the retaining disc 6, which is convenient for clarifying the adjusted value of the angle.,

[0035] The working principle and usage process of the present utility model:

[0036] During use, turn the second nut 17 to align the pressing wheel 16 with the first bending wheel 7. Insert the pipe fitting from below the first bending wheel 7, with the end of the pipe fitting extending above the pressing wheel 16. Pull the handle rod 18 upward. The handle rod 18 drives the bolt 13 through the connecting column 14, and the bolt 13 drives the rotating head 12 to rotate. The side rod 15 drives the pressing wheel 16 to rotate upward synchronously. The pressing wheel 16 squeezes the pipe fitting upward, and the pipe fitting bends along the outer circumference of the first bending wheel 7 and stops when it directly adheres to the stop block 10. When the bending angle needs to be adjusted, start the motor 4. The output end of the motor 4 drives the shaft rod 5 to rotate slowly after being decelerated by the high-speed ratio reducer 3. The shaft rod 5 drives the first bending wheel 7 to rotate slowly, and the first bending wheel 7 drives the stop block 10 to rotate. Stop when it reaches the required angle. It is possible to change the angle of the first bending wheel 7 at any time according to needs during the processing of bent pipe fittings, so as to facilitate the rapid adjustment of the bending angle of the same pipe fitting. In addition, during use, in addition to the first bending wheel 7, a second bending wheel 8 and a third bending wheel 9 are provided between the retaining disc 6 and the first nut 11. Stop blocks 10 are provided on the sides of the second bending wheel 8 and the third bending wheel 9. The provision of the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9 facilitates different bending moments for the pipe fitting. In addition, during use, separation rings 23 are provided between the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9. The separation rings 23 are sleeved on the outside of the shaft rod 5. Support rods 24 are provided between the lower side of the separation rings 23 and the workbench plate 1, which facilitates the structural support of the shaft rod 5 when bending the pipe fitting upward and prevents the shaft rod 5 from being bent under force. In addition, during use, friction teeth are provided on the contact surfaces of the insertion joints of the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9 with the shaft rod 5 to keep the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9 stable relative to the shaft rod 5 and prevent rotation and angle change during bending. The inner diameter of the separation ring 23 is larger than the outer circumference of the friction teeth of the shaft rod 5, which does not affect the extraction of the shaft rod 5 from the inside of the separation ring 23. In addition, during use, a notch 19 is provided directly below the pressing wheel mechanism on the workbench plate 1 to allow the bolt 13 and the handle rod 18 to rotate to the lowest position to ensure that the pipe fitting can pass above the pressing wheel 16. In addition, during use, a support plate 20 is provided on one side of the workbench plate 1 away from the pressing wheel mechanism for the bending adjustment mechanism. Electric hydraulic telescopic rods 21 are symmetrically provided on the lower side of the workbench plate 1. The output ends of the electric hydraulic telescopic rods 21 penetrate the workbench plate 1 and are fixedly connected to the support plate 20. The electric hydraulic telescopic rods 21 are set to push the support plate 20 up to the corresponding height when bending the first bending wheel 7, the second bending wheel 8 and the third bending wheel 9, which is used to support the pipe fitting during bending. In addition, fixing pieces 22 are provided at the lower ends of the legs 2, and the device is fixed to the ground through the fixing pieces 22 to maintain the stability of the device during bending. In addition, during use, angle scale grooves are evenly provided on the outside of the retaining disc 6, and a marking rod 25 is provided on the side of the high-speed ratio reducer 3. The marking rod 25 is directly opposite the upper center of the retaining disc 6, which is convenient for clarifying the adjusted value of the angle.

[0037] It should be noted that in this text, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] Specific examples are used in this text to illustrate the principles and implementation manners of the present invention. The description of the above examples is only for helping to understand the method of the present invention and its core idea. The above is only the preferred implementation manner of the present invention. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, modifications or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A bending angle adjustable bending machine, characterized in that: The invention comprises a workbench (1), wherein the four corners of the lower side of the workbench (1) are all provided with supporting legs (2), a high-speed ratio reducer (3) is provided on one side of the upper side of the workbench (1), a motor (4) is provided at the input end of the high-speed ratio reducer (3), a bending adjustment mechanism is provided at the output end of the high-speed ratio reducer (3), the bending adjustment mechanism comprises a shaft (5), a baffle (6), a bending wheel (7), a stop block (10) and a nut (11), the shaft (5) is connected to the output end of the high-speed ratio reducer (3), a baffle (6) is fixedly provided on the side of the shaft (5) close to the high-speed ratio reducer (3), a bending wheel (7) is provided on the side of the shaft (5) away from the baffle (6) and away from the high-speed ratio reducer (3), and a threaded connection is formed on the side of the shaft (5) away from the baffle (6) and away from the bending wheel (7) A nut (11) is provided, a stop block (10) is provided on the side of the bending wheel (7), and the stop block (10) is flush with the tangent direction of the outer side surface of the bending wheel (7). A rotating head (12) is rotatably provided at one end of the shaft rod (5) away from the high-speed ratio reducer (3), and a pressure wheel mechanism is provided on the side of the rotating head (12), and the pressure wheel mechanism includes a bolt (13), and the bolt (13) passes through the rotating head (12) and is rotatably provided with a connecting column (14), and a side rod (15) is provided on the side of the connecting column (14) close to the high-speed ratio reducer (3), and a pressure wheel (16) is sleeved on the outer side of the side rod (15), and nuts (17) are threadedly provided on both sides of the pressure wheel (16) of the side rod (15), and a handle rod (18) is provided at one end of the connecting column (14) away from the bolt (13).

2. The bending angle adjustable bending machine according to claim 1, characterized in that: In addition to the bending wheel one (7), a bending wheel two (8) and a bending wheel three (9) are arranged between the baffle plate (6) and the nut one (11), and the sides of the bending wheel two (8) and the bending wheel three (9) are both provided with a stop block (10).

3. The bending angle adjustable bending machine according to claim 1, characterized in that: A separation ring (23) is provided between the bending wheel one (7), the bending wheel two (8) and the bending wheel three (9); the separation ring (23) is sleeved on the outer side of the shaft rod (5); and a support rod (24) is provided between the lower side of the separation ring (23) and the workbench (1).

4. The bending angle adjustable bending machine according to claim 3, characterized in that: The contact surfaces of the bending wheel 1 (7), the bending wheel 2 (8) and the bending wheel 3 (9) at the insertion points with the shaft (5) are all provided with friction teeth, and the inner diameter of the separation ring (23) is larger than the outer circumference of the friction teeth of the shaft (5).

5. The bending angle adjustable bending machine according to claim 1, characterized in that: The workbench (1) is provided with a notch (19) at the lower side of the pressing wheel mechanism.

6. The bending angle adjustable bending machine according to claim 1, characterized in that: The workbench (1) is provided with a support plate (20) on the side of the bending adjustment mechanism away from the pressure wheel mechanism, and the lower side of the workbench (1) is symmetrically provided with an electric hydraulic telescopic rod (21), and the output end of the electric hydraulic telescopic rod (21) passes through the workbench (1) and is fixedly connected to the support plate (20).

7. The bending angle adjustable bending machine according to claim 1, characterized in that: The lower ends of the supporting legs (2) are each provided with a fixing plate (22).

8. The bending angle adjustable bending machine according to claim 1, characterized in that: The outer side of the baffle (6) is evenly provided with angle scale grooves, and the side of the high-speed ratio reducer (3) is provided with a reference rod (25), and the reference rod (25) is directly opposite to the upper center of the baffle (6).

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