An automated pipe bending apparatus

Abstract

The application relates to the technical field of pipe bending equipment, and discloses an automatic pipe bending equipment, which comprises a rack, a controller and a processor fixedly arranged in the rack, a mounting rack fixedly arranged at the top of the rack, a forming die and an upper die capable of moving in the axial direction arranged on the rack, and a pipe bending assembly further arranged on the rack, wherein the pipe bending assembly comprises vertical pressing blocks and horizontal pressing blocks capable of moving in the axial direction, and an arc-shaped groove is arranged on the upper die. When the pipe body after being cut is conveyed to the top of the rack and the mounting rack, the central hydraulic cylinder is started in advance, the forming die is separated from the mounting rack, one side of the pipe body is tightly supported, the upper die is axially moved by starting the top hydraulic cylinder, the two ends of the upper die can tightly press and extrude the other side of the pipe body, the pipe body is bent and formed, automatic pipe bending is realized, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pipe bending equipment technology, specifically to an automated pipe bending device. Background Technology

[0002] Pipe fittings are core components in fields such as machinery manufacturing, construction, and fluid transportation. The bending efficiency of pipe fittings directly determines the subsequent production progress. Pipe bending equipment is the key equipment for achieving pipe bending and forming. Currently, the pipe bending equipment used in large-scale production scenarios is mostly based on manual positioning, manual operation bending, or simple semi-automatic bending as its core structure. It can only realize the basic bending function of pipe fittings, and has the following shortcomings in actual batch processing scenarios:

[0003] Firstly, most existing pipe bending equipment lacks accurate outer diameter recognition and adaptive clamping structure. After the pipe is loaded, the outer diameter needs to be measured manually and the position of the clamping parts needs to be adjusted manually, which not only increases the number of manual operation steps, but also easily leads to problems such as clamping deviation and uneven force.

[0004] Secondly, most pipe bending equipment does not have the function of real-time detection and dynamic adjustment of bending force. Some equipment uses fixed pressure for bending processing. When the outer diameter and material of the pipe change, the bending force cannot be adjusted synchronously, which can easily lead to over-bending or under-bending.

[0005] Third, the existing equipment has a low level of automation and intelligence, lacks complete detection and control components, and the length of the secondary bending needs to be judged and controlled manually. It cannot automatically identify the shape of the pipe after bending and adjust the processing parameters accordingly.

[0006] Fourth, the existing pipe bending equipment has poor adaptability and is not adaptable to the processing of pipe fittings of different specifications. Moreover, the secondary bending function is not perfect, and repeated loading and unloading and transfer are required to complete the secondary bending of both sides of the pipe fitting, which increases the operation process. Summary of the Invention

[0007] The purpose of this invention is to provide an automated pipe bending device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An automated pipe bending device includes a frame, in which a controller and a processor are fixedly installed, and a mounting bracket is fixedly installed at the top of the frame. The frame is provided with an axially movable forming die and an upper die. A pipe bending assembly is also provided on the frame, comprising an axially movable vertical pressure block and a horizontal pressure block. The pipe bending assembly also includes an arc-shaped groove formed on the upper die. The forming die, the vertical pressure block, and the horizontal pressure block together abut against and compress the pipe body, performing bending processing as required.

[0010] The pipe body is also equipped with a moving component, which includes multiple telescopic inductive switches. These telescopic inductive switches are linearly arrayed at equal intervals and fixedly installed inside a mounting frame. The moving component also includes a fixed frame, an asynchronous motor, a one-way screw, and a pressure sensor. The fixed frame is fixedly installed inside the side wall of the forming mold. An asynchronous motor is fixedly installed inside the fixed frame, and a one-way screw is fixedly installed at the output end of the asynchronous motor. The two ends of the one-way screw are rotatably installed inside the fixed frame via bearings. A moving frame is threaded onto the one-way screw and slidably installed on the fixed frame via bearings. The outer center wall of the moving frame is fixedly connected to the outer center wall of the pressure sensor. During the bending process of the pipe body, the pressure sensor is squeezed and pressed against it. During this process, the cross-section at the center of the pipe body always coincides with the central cross-section of the pressure sensor, thus adapting to pipe bodies of different outer diameters and obtaining more accurate pressure values.

[0011] An identification component is provided on the outside of the fixed frame. The identification component includes an infrared distance sensor and a first diffuse reflection photoelectric sensor. The transmitting end of the infrared distance sensor is fixedly installed on the fixed frame, and the receiving end of the infrared distance sensor is fixedly installed on the movable frame to obtain the displacement of the movable frame in real time. The pressure sensor is externally fixedly installed with a first diffuse reflection photoelectric sensor for automatically obtaining the current outer diameter of the pipe body.

[0012] In a further embodiment, a central hydraulic cylinder is fixedly installed on the lower surface of the top of the frame, and the piston end of the central hydraulic cylinder is fixedly connected to the center of the bottom of the forming mold. The forming mold passes through the mounting frame. A top hydraulic cylinder is fixedly installed on the upper surface of the top of the frame, and the piston end of the top hydraulic cylinder is fixedly connected to the center of the outer wall of the upper mold. The upper mold is slidably installed inside the mounting frame.

[0013] In a further embodiment, the pipe bending assembly further includes a first auxiliary hydraulic cylinder, a bottom hydraulic cylinder, a lower die, and a second auxiliary hydraulic cylinder. The first auxiliary hydraulic cylinder is fixedly installed on the inner wall of the upper die, and the piston end of the first auxiliary hydraulic cylinder is fixedly connected to the center of the outer wall of the vertical pressure block. The bottom hydraulic cylinder is fixedly installed on the upper surface of the top of the frame, and the lower die is fixedly installed on the piston end of the bottom hydraulic cylinder. The second auxiliary hydraulic cylinder is fixedly installed on the inner wall of the lower die, and the lower die is slidably installed inside the mounting frame. The piston end of the second auxiliary hydraulic cylinder is fixedly connected to the center of the outer wall of the horizontal pressure block.

[0014] In a further embodiment, two sets of the first auxiliary hydraulic cylinder, vertical pressure block, bottom hydraulic cylinder, lower mold, second auxiliary hydraulic cylinder, and horizontal pressure block are provided and mirror-arranged on both sides of the forming mold, thereby forming more shapes of the pipe body.

[0015] In a further embodiment, a cutting assembly is provided on the outside of the pipe fitting body. The cutting assembly includes a main hydraulic cylinder, a mounting block, and a multi-jaw centering hydraulic clamp. The piston end of the main hydraulic cylinder and the outer wall of one end of the mounting block are both fixedly mounted with multi-jaw centering hydraulic clamps. The two sets of multi-jaw centering hydraulic clamps clamp and fix the outside of the pipe fitting body.

[0016] In a further embodiment, the cutting assembly also includes a hydraulic cylinder, a push plate, a cutting motor, a saw blade, and a dust collection hood. The hydraulic cylinder is fixedly mounted on the top surface of the frame. One end of the push plate is fixedly mounted on the piston end of the hydraulic cylinder, and the other end of the push plate is fixedly mounted on the cutting motor. The output end of the cutting motor is fixedly mounted on the saw blade. The large input end of the dust collection hood is fixedly mounted on the side of the mounting block near the forming mold. The small output end of the dust collection hood is connected to the input end of the vacuuming equipment through a flexible hose to keep the work surface clean.

[0017] In a further embodiment, a conveying assembly is also provided on the outside of the pipe body. The conveying assembly includes a side frame, a feeding frame, feeding rollers, a first vertical hydraulic cylinder, and a second vertical hydraulic cylinder. The feeding frame is fixedly installed at the top of the side frame. Multiple sets of feeding rollers are rotatably installed on the feeding frame via bearing components. The multiple sets of feeding rollers jointly support and convey the pipe body. The first vertical hydraulic cylinder and the second vertical hydraulic cylinder are fixedly installed on the lower surface of the top of the frame. The piston end of the first vertical hydraulic cylinder is fixedly connected to the outer wall of the main hydraulic cylinder, and the piston end of the second vertical hydraulic cylinder is fixedly connected to the outer wall of the mounting block, so that the two sets of multi-jaw centering hydraulic chucks can better maintain coaxiality with pipe bodies of different outer diameters.

[0018] In a further embodiment, an acquisition component is provided at the top of the frame. The acquisition component includes a bidirectional linear module and a second diffuse reflection photoelectric sensor. The second diffuse reflection photoelectric sensor is fixedly installed on both sets of moving parts of the bidirectional linear module. The two second diffuse reflection photoelectric sensors are used to automatically acquire the length of both sides of the pipe body after the initial bending, thereby forming more shapes of the pipe body. The upper mold is provided with two sets of air jets at the arc groove. The output ends of the two sets of air jets face the forming mold, and the input ends of the two sets of air jets are connected to the output end of the air jetting equipment through a hose passing through the upper mold, so as to better feed the formed pipe body into the machine.

[0019] Compared with the prior art, the present invention provides an automated pipe bending device, which has the following advantages:

[0020] 1. In this automated pipe bending equipment, when the cut pipe body is transported to the top of the frame and mounting frame, the central hydraulic cylinder is activated in advance to move the forming die away from the mounting frame, thereby pressing and supporting one side of the pipe body. When the top hydraulic cylinder is activated, the upper die can move axially, so that the two ends of the upper die can press and squeeze the other side of the pipe body, thereby bending the pipe body into shape, thus realizing automated pipe bending and improving processing efficiency.

[0021] 2. Furthermore, to improve adaptability, this automated pipe bending equipment is equipped with a pipe bending assembly. When the first auxiliary hydraulic cylinder is activated, the vertical pressure block moves axially. This, combined with the arc-shaped groove, prevents the upper die from obstructing or interfering with the pipe body during bending. When the bottom hydraulic cylinder is activated, the lower die moves axially. When the second auxiliary hydraulic cylinder is activated, the horizontal pressure block moves axially. This allows the equipment to accommodate pipe bodies with larger outer diameters. For example, when the outer diameter of the pipe body increases, the vertical and horizontal pressure blocks move further away from the forming die. At the same time, the horizontal pressure block can perform a secondary bend on the pipe body, avoiding repeated loading and unloading operations and improving work efficiency.

[0022] 3. This automated pipe bending equipment, through the setting of the cutting component, activates the main hydraulic cylinder so that the corresponding multi-jaw centering hydraulic chuck can clamp the front end of the pipe body. According to the target length of the current batch of pipe bodies, after pulling forward the target distance, the multi-jaw centering hydraulic chuck on the mounting block further stabilizes and clamps the pipe body, thereby activating the secondary hydraulic cylinder, causing the push plate to drive the cutting motor to approach the pipe body. The saw blade moves axially synchronously and rotates at high speed to cut the pipe body at the target length point. With the help of the dust suction hood, it is easy to remove debris, thus conveniently obtaining the pipe body of the preset target length. After the pipe body of the current length is cut, with the continued operation of the main hydraulic cylinder, the distance between the two ends of the current pipe body and the center of the forming mold can be further controlled, thereby flexibly adjusting the length of the vertical section on both sides of the pipe body after subsequent bending and forming.

[0023] 4. This automated pipe bending equipment, by setting up a conveying component and cooperating with multiple sets of feeding rollers on the side frame and the feeding frame, can convey pipe bodies of more outer diameter sizes, allowing them to pass through the mounting block. When the first vertical hydraulic cylinder is activated, the main hydraulic cylinder can move axially. When the second vertical hydraulic cylinder is activated, the mounting block can move axially, so that the two sets of multi-jaw centering hydraulic chucks can keep coaxial with the pipe body of the current outer diameter, making subsequent clamping and fixing more stable.

[0024] 5. This automated pipe bending equipment, through the setting of a moving component, when the first vertical hydraulic cylinder is activated, the main hydraulic cylinder moves downward, activating the corresponding multi-jaw centering hydraulic chuck to finish fixing the end of the pipe body. Activating the main hydraulic cylinder causes the multi-jaw centering hydraulic chuck to move away from the forming mold and reset. The currently cut pipe body abuts against the mounting frame, triggering a telescopic inductive switch, which, in conjunction with the processor, activates the pressure sensor. When the asynchronous motor on the fixed frame is activated, the one-way lead screw rotates, causing the moving frame to drive the pressure sensor axially, ensuring that the cross-section of the center of the pipe body with different outer diameters always coincides with the center cross-section of the pressure sensor, thus adapting to pipe bodies with different outer diameters and obtaining more accurate pressure values. Subsequently, the top hydraulic cylinder is activated, causing the two sets of vertical pressure blocks to move downward, coordinating with the support of the forming mold to press and bend the pipe body. Thus, in conjunction with the processor and pressure sensor, the bending force applied by the top hydraulic cylinder can be obtained automatically in real time.

[0025] 6. This automated pipe bending equipment, through the setting of an identification component, can obtain the current position of the pressure sensor in real time with the infrared distance sensor, and automatically obtain the outer diameter of the current pipe body with the first diffuse reflection photoelectric sensor. This allows for real-time adjustment of the output hydraulic pressure of the top and bottom hydraulic cylinders based on the current outer diameter of the pipe body. The larger the outer diameter, the greater the hydraulic pressure. At the same time, it automatically adjusts the position of the vertical and horizontal pressure blocks. The larger the outer diameter, the further the vertical and horizontal pressure blocks are from the forming mold. After obtaining the outer diameter value, it is easy to adjust the two sets of multi-jaw centering hydraulic chucks to keep them coaxial with the pipe body of the current outer diameter. At the same time, based on the current outer diameter value, the asynchronous motor runs the corresponding stroke, so that the cross section of the current pipe body's center always coincides with the center cross section of the pressure sensor.

[0026] 7. This automated pipe bending equipment, through the setting of acquisition components, when the bidirectional linear module is activated, causes two sets of second diffuse reflection photoelectric sensors to move closer to each other. During the movement of a single second diffuse reflection photoelectric sensor, it will successively pass one side of the pipe body after the initial bend and intermittently acquire two identical values. This allows it to determine the relative position of the bottom end of one side of the pipe body to the forming mold. Based on whether the two ends of the current batch of pipe bodies need to be bent a second time, the second diffuse reflection photoelectric sensor on the corresponding side is energized. This allows it to control the start and stop of the bottom hydraulic cylinder based on whether the bottom of the corresponding side of the pipe body exceeds the bottom of the forming mold. If it does not exceed, it will not start. At the same time, it can control the axial movement distance of the lower mold based on the amount of excess on both sides, improving the level of automation and intelligence and enhancing the adaptability of the equipment.

[0027] 8. After the pipe body is bent and formed, the structure is reset. At the same time as the upper mold moves in the opposite direction, the air jetting equipment is activated. Through two sets of symmetrical air jets, airflow is blown onto the pipe body, so that it can better avoid deviation during feeding by utilizing the inclined structure at the top of the frame. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 For the present invention Figure 1 Enlarged structural diagram of region A in the middle;

[0030] Figure 3 For the present invention Figure 1 Enlarged structural diagram of region B in the middle;

[0031] Figure 4 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0032] Figure 5 For the present invention Figure 4 Enlarged structural diagram of region C in the middle;

[0033] Figure 6 For the present invention Figure 4 A magnified schematic diagram of the D region;

[0034] Figure 7 This is an exploded cross-sectional view of the frame and part of the structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the internal structure of the frame of the present invention;

[0036] Figure 9 For the present invention Figure 8 Enlarged structural diagram of region E in the middle;

[0037] Figure 10 This is a schematic cross-sectional view of the frame of the present invention;

[0038] Figure 11 For the present invention Figure 10 A magnified structural diagram of the middle F region;

[0039] Figure 12 This is a schematic cross-sectional view of the mounting bracket of the present invention;

[0040] Figure 13 This is a schematic diagram of the infrared distance sensor and part of its structure according to the present invention;

[0041] Figure 14 This is a schematic diagram illustrating the determination of the pipe body radius by the identification component of the present invention;

[0042] Figure 15This is a schematic diagram illustrating the determination of the center distance between pipe bodies of different outer diameters using the identification component of this invention.

[0043] Figure 16 This is a schematic diagram illustrating the calculation of the pressure sensor movement amount according to the present invention;

[0044] Figure 17 This is a schematic diagram of the main body structure of the b-shaped pipe fitting of the present invention;

[0045] Figure 18 For the present invention Figure 17 A magnified schematic diagram of the G region;

[0046] Figure 19 This is a schematic diagram of the main body structure of the pipe fitting of form a according to the present invention;

[0047] Figure 20 This is a schematic diagram of the body structure of the e-shaped pipe fitting of the present invention;

[0048] Figure 21 This is a schematic diagram of the body structure of the f-shaped pipe fitting of the present invention;

[0049] Figure 22 This is a schematic diagram of the demolded state of the pipe fitting body of the present invention;

[0050] Figure 23 This is a schematic diagram summarizing the various pipe fitting bodies of the present invention.

[0051] Explanation of icon numbers:

[0052] 1. Frame; 11. Mounting bracket; 12. Pipe body; 2. Central hydraulic cylinder; 3. Forming mold; 4. Top hydraulic cylinder; 5. Upper mold;

[0053] 6. Pipe bending assembly; 61. First auxiliary hydraulic cylinder; 62. Vertical pressure block; 63. Arc groove; 64. Bottom hydraulic cylinder; 65. Lower mold; 66. Second auxiliary hydraulic cylinder; 67. Horizontal pressure block;

[0054] 7. Cutting component; 71. Main hydraulic cylinder; 72. Mounting block; 73. Multi-jaw centering hydraulic chuck; 74. Slave hydraulic cylinder; 75. Push plate; 76. Cutting motor; 77. Saw blade; 78. Dust hood;

[0055] 8. Conveying assembly; 81. Side frame; 82. Feeding frame; 83. Feeding roller; 84. First vertical hydraulic cylinder; 85. Second vertical hydraulic cylinder;

[0056] 9. Moving component; 91. Telescopic inductive switch; 92. Fixture; 93. Asynchronous motor; 94. One-way lead screw; 95. Moving frame; 96. Pressure sensor;

[0057] 10. Identification component; 101. Infrared distance sensor; 102. First diffuse reflection photoelectric sensor;

[0058] 20. Acquisition component; 201. Bidirectional linear module; 202. Second diffuse reflection photoelectric sensor;

[0059] 30. Jet nozzle; 40. Controller; 50. Processor. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0062] Please see Figures 1-23 The present invention provides a technical solution:

[0063] An automated pipe bending device includes a frame 1, a controller 40 and a processor 50 fixedly installed inside the frame 1, a mounting bracket 11 fixedly installed at the top of the frame 1, and a forming mold 3 and an upper mold 5 that can move axially on the frame 1 for bending the pipe body 12.

[0064] Please see Figure 1 , Figure 4 and Figure 7 A central hydraulic cylinder 2 is fixedly installed on the lower surface of the top of the frame 1. The piston end of the central hydraulic cylinder 2 is fixedly connected to the bottom center of the forming mold 3. The forming mold 3 passes through the mounting frame 11. A top hydraulic cylinder 4 is fixedly installed on the upper surface of the top of the frame 1. The piston end of the top hydraulic cylinder 4 is fixedly connected to the center of the outer wall of the upper mold 5. The upper mold 5 is slidably installed inside the mounting frame 11. Example 1

[0065] Please see Figures 11-16 The pipe fitting body 12 is externally provided with a moving component 9, which includes three telescopic inductive switches 91 (such as...). Figure 11As shown), three telescopic inductive switches 91 are fixedly installed in a linear array with equal spacing inside the mounting bracket 11. This ensures that when a pipe body 12 with a larger outer diameter comes into contact with the mounting bracket 11, the corresponding telescopic inductive switch 91 can be triggered. The moving component 9 also includes a fixed bracket 92, an asynchronous motor 93, a one-way lead screw 94, a moving bracket 95, and a pressure sensor 96. The fixed bracket 92 is fixedly installed inside the side wall of the forming mold 3. The asynchronous motor 93 is fixedly installed inside the fixed bracket 92. The one-way lead screw 94 is fixedly installed at the output end of the asynchronous motor 93. The two ends of the lead screw 94 are rotatably mounted inside the fixed frame 92 via bearing components. A movable frame 95 is threaded onto the unidirectional lead screw 94. The movable frame 95 is slidably mounted on the fixed frame 92 via bearing components. The outer wall of the center of the movable frame 95 is fixedly connected to the outer wall of the center of the pressure sensor 96. During the bending process of the pipe body 12, it squeezes and abuts against the pressure sensor 96. During this process, the cross section at the center of the pipe body 12 always coincides with the central cross section of the pressure sensor 96, thereby adapting to pipe bodies 12 with different outer diameters and obtaining more accurate pressure values.

[0066] In use: After the equipment is powered on, the pipe body 12 is first transported to the top of the mounting frame 11. When the pipe body 12 naturally abuts against the outer wall of the mounting frame 11, the corresponding telescopic induction switch 91 is pressed and triggered. The switch sends a position signal to the processor 50. The processor 50 then starts the asynchronous motor 93, which drives the one-way lead screw 94 to move the moving frame 95 and the pressure sensor 96 axially, automatically aligning the center of the pressure sensor 96 with the cross section where the center of the pipe body is located. When bending, the pipe body 12 presses against the pressure sensor 96, and the bending force is collected in real time and fed back to the controller 40, realizing accurate pressure detection and adaptive positioning of pipe bodies 12 with different outer diameters, without the need for manual adjustment of the position of the pressure sensor 96.

[0067] Furthermore, an identification component 10 is provided on the outside of the fixed frame 92. The identification component 10 includes an infrared distance sensor 101 and a first diffuse reflection photoelectric sensor 102. The transmitting end of the infrared distance sensor 101 is fixedly installed on the fixed frame 92, and the receiving end of the infrared distance sensor 101 is fixedly installed on the movable frame 95 to obtain the displacement of the movable frame 95 in real time. The pressure sensor 96 is externally fixedly installed with the first diffuse reflection photoelectric sensor 102 for automatically obtaining the outer diameter of the current pipe body 12.

[0068] In use, after the pipe body 12 is loaded, the first diffuse reflection photoelectric sensor 102 scans the pipe from bottom to top, automatically calculates the outer diameter of the pipe body 12 by the change of reflection distance and uploads it to the processor 50; at the same time, the infrared distance sensor 101 monitors the displacement of the moving frame 95 in real time, providing closed-loop position feedback for the centering movement of the pressure sensor 96; the processor 50 automatically matches the bending parameters according to the outer diameter data, without the need for manual measurement of pipe diameter and manual setting of pressure, realizing adaptive identification of pipe diameter and precise centering control. Example 2

[0069] Please see Figure 1 , Figure 2 and Figures 8-10 Based on Embodiment 1, a conveying assembly 8 is further provided on the outside of the pipe body 12. The conveying assembly 8 includes a side frame 81, a feeding frame 82, feeding rollers 83, a first vertical hydraulic cylinder 84, and a second vertical hydraulic cylinder 85. The feeding frame 82 is fixedly installed at the top of the side frame 81, and six sets of feeding rollers 83 (e.g., ...) are rotatably mounted on the feeding frame 82 via bearing components. Figure 1 As shown, the feed rollers 83 are driven by a power unit (not shown in the figure). Six sets of feed rollers 83 together support and convey the pipe body 12. The first vertical hydraulic cylinder 84 and the second vertical hydraulic cylinder 85 are fixedly installed on the lower surface of the top of the frame 1. The piston end of the first vertical hydraulic cylinder 84 is fixedly connected to the outer wall of the main hydraulic cylinder 71, and the piston end of the second vertical hydraulic cylinder 85 is fixedly connected to the outer wall of the mounting block 72, so that the two sets of multi-jaw centering hydraulic chucks 73 can better maintain the coaxiality with the pipe body 12 with different outer diameters (for specific principles, please refer to the description of use in this embodiment).

[0070] Further, please refer to Figures 2-5 and Figure 9 , Figure 10 The pipe fitting body 12 is externally equipped with a cutting assembly 7, which includes a main hydraulic cylinder 71, a mounting block 72, and a multi-jaw centering hydraulic chuck 73. The piston end of the main hydraulic cylinder 71 and the outer wall of one end of the mounting block 72 are both fixedly mounted with the multi-jaw centering hydraulic chuck 73 (e.g., ...). Figure 2 and Figure 3 As shown, this embodiment is configured with three claws, and two sets of multi-claw centering hydraulic clamps 73 clamp and fix the outside of the pipe body 12.

[0071] Further, please refer to Figure 2 , Figure 4 , Figure 5 , Figure 8 and Figure 9 The cutting component 7 also includes a hydraulic cylinder 74, a push plate 75, a cutting motor 76, a saw blade 77, and a dust collection hood 78. The hydraulic cylinder 74 is fixedly installed on the top upper surface of the frame 1. One end of the push plate 75 is fixedly installed on the piston end of the hydraulic cylinder 74, and the other end of the push plate 75 is fixedly installed on the cutting motor 76. The output end of the cutting motor 76 is fixedly installed on the saw blade 77. The large end of the dust collection hood 78 is fixedly installed on the side of the mounting block 72 near the forming mold 3. The small end of the dust collection hood 78 is connected to the input end of the vacuuming equipment through a hose to keep the table surface clean.

[0072] Further, please refer to Figure 4 , Figure 5 and Figures 17-21The frame 1 is also equipped with a pipe bending assembly 6, which includes a vertical pressure block 62 and a horizontal pressure block 67 that can move axially. The pipe bending assembly 6 also includes an arc-shaped groove 63, which is formed on the upper die 5. The forming die 3, the vertical pressure block 62 and the horizontal pressure block 67 jointly abut against and compress the pipe body 12 to bend it as required. Furthermore, the pipe bending assembly 6 also includes a first auxiliary hydraulic cylinder 61, a bottom hydraulic cylinder 64, a lower die 65 and a second auxiliary hydraulic cylinder 66. The first auxiliary hydraulic cylinder 61 is fixedly installed on the inner wall of the upper die 5, and the piston end of the first auxiliary hydraulic cylinder 61 is fixedly connected to the vertical pressure block 62. At the center of the outer wall, a bottom hydraulic cylinder 64 is fixedly installed on the top surface of the frame 1. A lower mold 65 is fixedly installed on the piston end of the bottom hydraulic cylinder 64. A second auxiliary hydraulic cylinder 66 is fixedly installed on the inner wall of the lower mold 65. The lower mold 65 is slidably installed inside the mounting frame 11. The piston end of the second auxiliary hydraulic cylinder 66 is fixedly connected to the center of the outer wall of the horizontal pressure block 67. Furthermore, two sets of the first auxiliary hydraulic cylinder 61, vertical pressure block 62, bottom hydraulic cylinder 64, lower mold 65, second auxiliary hydraulic cylinder 66 and horizontal pressure block 67 are provided and mirrored on both sides of the forming mold 3, thereby forming more shapes of pipe body 12.

[0073] Furthermore, the two sides of the pipe body 12 are vertical sections, and the shape below them extending beyond the forming mold 3 is set as shape a (e.g., Figure 19 , Figure 23 (as shown)

[0074] The pipe body 12 has vertical sections on both sides, and the shape where the lower part of one side extends beyond the bottom of the forming mold 3 while the lower part of the other side does not extend beyond the bottom of the forming mold 3 is set as shape b (e.g., Figure 18 , Figure 23 (as shown)

[0075] The pipe body 12 has vertical sections on both sides, and its lower part does not extend below the forming mold 3. The shape is set as c (e.g., Figure 12 , Figure 23 (as shown)

[0076] One side of the pipe body 12 is a vertical section, and its lower part does not extend below the forming mold 3. The other side has completed a second bend, and its shape is set as d (e.g., Figure 23 (as shown)

[0077] The shape of the pipe body 12, where both sides have undergone secondary bends of equal length, is designated as shape e (e.g., ...). Figure 20 , Figure 22 , Figure 23 (as shown)

[0078] The shape of the pipe body 12 with two sides having undergone secondary bends of different lengths is designated as shape f (e.g., Figure 21 , Figure 23 (As shown).

[0079] In use, the feed roller 83 is activated to smoothly convey the pipe body 12 through the mounting block 72. The processor 50, based on the identified outer diameter of the pipe body 12, controls the first vertical hydraulic cylinder 84 and the second vertical hydraulic cylinder 85 to rise and fall, ensuring that the multi-jaw centering hydraulic chuck 73 is automatically coaxial with the pipe body 12. The two sets of multi-jaw centering hydraulic chucks 73 clamp the pipe body 12 sequentially. (Specifically: first, the outer diameter of the pipe body 12 is automatically detected by the identification component 10; the processor 50 calculates the axial height compensation amount and controls the first vertical hydraulic cylinder 84 and the second vertical hydraulic cylinder 85 to rise and fall, ensuring that the two sets of multi-jaw centering hydraulic chucks 73 at the end of the main hydraulic cylinder 71 and the end of the mounting block 72 are coaxial with the pipe body 12.) The clamping plate 73 always remains coaxial with the pipe body 12 of different outer diameters; coaxial clamping can ensure that the cutting cut is vertical, the force is uniform and there is no deformation. The main hydraulic cylinder 71 is pulled to the set length, and the hydraulic cylinder 74 pushes the saw blade 77 to complete the fixed-length cutting. The dust hood 78 simultaneously removes the debris. The top hydraulic cylinder 4 drives the upper mold 5 to move downward, and the first auxiliary hydraulic cylinder 61 adjusts the position of the vertical pressure block 62, which works with the arc groove 63 to complete the initial bending. The bottom hydraulic cylinder 64 and the second auxiliary hydraulic cylinder 66 drive the horizontal pressure block 67, which can perform double-sided secondary bending of the pipe body 12, and select to form multiple pipe shapes a / b / c / d / e / f at one time without repeated loading and unloading. Example 3

[0080] Please see Figures 17-21 and Figure 23 Based on embodiments 1 and 2, an acquisition component 20 is provided at the top of the frame 1. The acquisition component 20 includes a bidirectional linear module 201 and a second diffuse reflection photoelectric sensor 202. The second diffuse reflection photoelectric sensor 202 is fixedly installed on both sets of moving parts of the bidirectional linear module 201. (The bidirectional linear module 201 includes a bracket, an asynchronous motor, a bidirectional lead screw, a guide rail, and a threaded block, where the threaded block is a moving part.) Figure 6 (As shown in the diagram, but not specifically labeled, and the specific connection relationship will not be repeated here). Two second diffuse reflection photoelectric sensors 202 are used to automatically obtain the length of the two sides of the current pipe body 12 after the initial bend, so as to form more shapes of pipe body 12.

[0081] In use, after the initial bending of the pipe fitting is completed, the bidirectional linear module 201 drives two sets of second diffuse reflection photoelectric sensors 202 to move towards each other. The sensors scan the bent section of the pipe fitting and intermittently collect two identical values ​​to determine the position of the pipe fitting end. The processor 50 compares the detected value with the fixed value below the forming mold, automatically determines whether the pipe fitting exceeds the bottom of the forming mold and whether a secondary bending is required, and calculates the length of the secondary bending. Based on this, the control system automatically starts and stops the bottom hydraulic cylinder 64 and adjusts the stroke of the lower mold 65 to achieve fully automatic determination and execution of the secondary bending without the need for manual observation and operation. Example 4

[0082] Please see Figure 1 and Figure 22 Based on embodiments 1, 2 and 3, the top of the frame 1 is inclined, and the upper mold 5 is provided with two sets of air jets 30 at the arc groove 63. The output ends of the two sets of air jets 30 face the forming mold 3, and the input ends of the two sets of air jets 30 are connected to the output end of the air jet equipment through the hoses passing through the upper mold 5, so as to better feed the formed pipe body 12 into the machine.

[0083] During use, after the pipe has completed all bending processes, each hydraulic cylinder and module is reset in sequence. While the upper mold 5 is returning upward, the jetting equipment jets downward through two sets of jet nozzles 30 at the arc groove 63 of the upper mold. The airflow blows towards the formed pipe, and in conjunction with the inclined structure at the top of the frame, the pipe slides out smoothly without bumps or deviations. No manual removal is required throughout the process, avoiding pipe sticking to the mold and jamming, and improving the smoothness of material feeding.

[0084] Working principle: When the central hydraulic cylinder 2 is activated, its piston end extends upward, pushing the forming mold 3, which is fixedly connected to its top, to move upward until the forming mold 3 is in close contact with one side of the pipe body 12, providing stable support for the pipe body 12. Six sets of feed rollers 83 driven by the power unit rotate synchronously. The six sets of feed rollers 83 cooperate with each other to stably support the pipe body 12. At the same time, the friction force drives the pipe body 12 to be conveyed forward at a uniform speed until the front end of the pipe body 12 is conveyed above the mounting frame 11, ensuring that the pipe body 12 smoothly passes through the mounting block 72, which prepares for the subsequent clamping, cutting and bending processes. During the conveying process, the feed rollers 83 can be adapted to pipe bodies 12 with different outer diameters to ensure that the conveying process does not deviate or jam.

[0085] Before the multi-jaw centering hydraulic chuck 73 in the cutting component 7 clamps and fixes the pipe body 12, the first diffuse reflection photoelectric sensor 102 in the identification component 10 is activated first, entering the outer diameter detection mode. (The first diffuse reflection photoelectric sensor 102 is fixed outside the pressure sensor 96 and moves synchronously with the pressure sensor 96. The first diffuse reflection photoelectric sensor 102 first emits its own light, then illuminates the object, and then the reflected light is received. The distance of the object is determined by the change in light intensity / distance. The first diffuse reflection photoelectric sensor 102 scans the pipe at a uniform speed from bottom to top, and the measured outer diameter data is transmitted to the processor 50, thereby adjusting the position of the vertical pressure block 62 and the horizontal pressure block 67, adjusting the coaxiality of the multi-jaw centering hydraulic chuck 73, adjusting the centering position of the pressure sensor 96, and setting the bending hydraulic pressure.) During the process, the distance between it and the upper die 5 is first obtained. The distance W1 between the arc-shaped groove 63 and the top of the arc is measured. When the device first passes the bottom of the larger or smaller pipe body 12, a fixed bottom tangent point distance W4 is obtained. As the device continues to move upward, the detected value gradually decreases, reaches a minimum value, and then gradually increases. This minimum value is the minimum point distance between the first diffuse reflection photoelectric sensor 102 and the current pipe body 12. The processor 50 automatically calculates the outer diameter of the pipe body 12 based on the detected data. The specific calculation method is as follows: the minimum point distance W2 between the larger pipe body 12 and the minimum point distance W3 between the smaller pipe body 12. Thus, the outer diameter of the larger pipe body 12 is: 2×R2=2×(W4-W2); the outer diameter of the smaller pipe body 12 is: 2×R3=2×(W4-W3), thereby realizing the automatic and accurate acquisition of the outer diameter of the pipe body 12.

[0086] The first diffuse reflection photoelectric sensor 102 transmits the acquired outer diameter value of the pipe body 12 to the processor 50 in real time. After analyzing and calculating the value, the processor 50 sends control signals to the first vertical hydraulic cylinder 84 and the second vertical hydraulic cylinder 85 in the conveying assembly 8 to control the two hydraulic cylinders to operate synchronously. The piston end of the first vertical hydraulic cylinder 84 drives the main hydraulic cylinder 71 to move up and down axially, and the piston end of the second vertical hydraulic cylinder 85 drives the mounting block 72 to move up and down axially. By precisely adjusting the positions of the two, the two sets of multi-jaw centering hydraulic chucks 73 at the piston end of the main hydraulic cylinder 71 and one end of the mounting block 72 are kept coaxial with the pipe body 12 of the current outer diameter, so as to avoid problems such as offset and uneven force during subsequent clamping. The two sets of multi-jaw centering hydraulic chucks 73 are adjusted to be coaxial with the pipe body 12 of the current outer diameter. To keep the body 12 coaxial, it is necessary to obtain the displacement of the center of the larger and smaller pipe body 12. This displacement is the extension and retraction adjustment of the first vertical hydraulic cylinder 84 and the second vertical hydraulic cylinder 85. The specific steps are as follows: Let the center of the larger and smaller pipe body 12 be Y2 and Y3, respectively. When the first diffuse reflection photoelectric sensor 102 starts to move from bottom to top, the initial default position has a fixed value H1. When W3 is obtained, the so-called position value is H3. When W2 is obtained, the so-called position value is H2. Then the displacement ∆h of Y2 and Y3 is H2-H3. After the position is adjusted to the correct position, the multi-claw centering hydraulic chuck 73 is activated. The chuck retracts to firmly clamp and fix the pipe body 12, ensuring that the pipe body 12 does not move during subsequent cutting and bending.

[0087] After the pipe fitting body 12 is stably clamped and fixed, the cutting component 7 is officially started and enters the cutting process. The processor 50 sends a running signal to the main hydraulic cylinder 71 in advance according to the pre-set target length of the pipe fitting body 12 of the current batch. The piston end of the main hydraulic cylinder 71 extends, driving the multi-jaw centering hydraulic chuck 73 at its end to pull the pipe fitting body 12 forward at a uniform speed. Note that at this time, the other set of multi-jaw centering hydraulic chucks 73 has not yet clamped and fixed, until the pulling distance reaches the target length and then stops. Subsequently, the multi-jaw centering hydraulic chuck 73 on the mounting block 72 further retracts to stably center and clamp the pipe fitting body 12. After clamping is completed, the hydraulic cylinder 74 is started, and its piston end pushes the push plate 75 to move axially. The push plate 75 drives the cutting motor 76 fixed at its other end. Simultaneously approaching the pipe body 12, when the cutting motor 76 moves to the cutting point, the cutting motor 76 starts, driving the saw blade 77 fixed at its output end to rotate at high speed. At the same time, the saw blade 77 moves slowly along the axial direction to cut the target length point of the pipe body 12. During the cutting process, the dust collection hood 78 fixed on the side of the mounting block 72 near the forming mold 3 generates negative pressure through the dust collection device connected by the hose, which promptly sucks the metal debris generated during cutting into the dust collection hood 78, avoiding debris accumulation that affects equipment operation and processing accuracy. After the cutting is completed, the main hydraulic cylinder 71 continues to operate slightly, precisely adjusting the distance between the two ends of the cut pipe body 12 and the center of the forming mold 3, so that it meets the size requirements of subsequent bending and forming, and adapts to the processing needs of different bending angles and shapes.

[0088] After the cutting process is completed, the piston end of the first vertical hydraulic cylinder 84 resets, causing the current pipe body 12 to naturally abut against the mounting frame 11. The processor 50 sends a release signal to the multi-jaw centering hydraulic chuck 73, and the jaws of the multi-jaw centering hydraulic chuck 73 open, ending the clamping and fixing of the pipe body 12. Subsequently, the piston end of the main hydraulic cylinder 71 retracts, causing the multi-jaw centering hydraulic chuck 73 at its end to move away from the forming mold 3 axially until it returns to the initial reset position. Since three telescopic inductive switches 91 are fixed in a linear array at equal intervals inside the mounting frame 11, regardless of the outer diameter of the pipe body 12, the corresponding telescopic inductive switch 91 can be triggered. After the telescopic inductive switch 91 is triggered, it immediately sends a signal to the processor 50. After receiving the signal, the processor 50 activates the pressure sensor 96 in the moving component 9 to prepare for subsequent bending pressure detection.

[0089] The processor 50 retrieves the previously acquired outer diameter value of the pipe body 12 and, combined with preset calculation logic, sends a running signal to the asynchronous motor 93 in the moving component 9, controlling the asynchronous motor 93 to start. The output of the asynchronous motor 93 drives the one-way screw 94 to rotate at a constant speed. Since the one-way screw 94 is threadedly engaged with the moving frame 95, and the moving frame 95 is slidably mounted on the fixed frame 92 via bearing components, when the one-way screw 94 rotates, it drives the moving frame 95 to move axially along the fixed frame 92. The moving frame 95 synchronously drives the pressure sensor 96 fixed to its central outer wall to move as well. At the same time, the infrared distance sensor 101 in the identification component 10 works in real time. Its transmitting end is fixed on the fixed frame 92, and its receiving end is fixed on the moving frame 95, acquiring the displacement of the moving frame 95 in real time. (The transmitting end continuously emits infrared signals, and the receiving end receives reflected signals. The real-time distance between the transmitting end and the receiving end, i.e., the displacement of the moving frame 95, is calculated through the time of flight / phase difference. The real-time displacement data is transmitted to the processor 50.) The processor 50 uses fixed parameters combined with real-time displacement to accurately calculate the current height H0 of the pressure sensor 96, ensuring that H0 = pipe radius. Specifically, it ensures that the cross-section where the center of the pipe body 12 is located always coincides with the center cross-section of the pressure sensor 96, so that the position value of the pressure sensor 96 is H0 = R2 or H0 = R3. H0, H1, H2 and H3 are all obtained after automatic conversion by the infrared distance sensor 101. The specific steps are as follows: Taking H0 as an example, let the height of the fixed frame 92 be a fixed value H9, the distance between the top of the fixed frame 92 and the bottom of the transmitter of the infrared distance sensor 101 be a fixed value H8, the distance between the top of the receiver of the infrared distance sensor 101 and the center of the moving frame 95 be a fixed value H7, and the real-time displacement of the moving frame 95 measured by the infrared distance sensor 101 be H6. Then H0 = H9 - H8 - H7 - H6, thereby ensuring that the pressure value obtained by the pressure sensor 96 during the subsequent bending process is accurate and provides reliable data support for the adjustment of bending force.

[0090] After the pressure sensor 96 is adjusted and in a stable working state, the pipe bending assembly 6 is activated, entering the initial bending process. The top hydraulic cylinder 4 is activated, and its piston end extends downward, driving the upper die 5, which is fixedly connected to its bottom end, to move axially downward. At the same time, the first auxiliary hydraulic cylinder 61, fixed to the inner wall of the upper die 5, is activated, and its piston end drives the vertical pressure block 62 to move axially. The position of the vertical pressure block 62 is adjusted accordingly based on the previously obtained outer diameter value. The vertical pressure block 62, in conjunction with the arc-shaped groove 63 opened on the upper die 5, effectively avoids obstruction and interference when the upper die 5 bends the pipe body 12, ensuring that the pipe body 12 can be bent smoothly. During this process, the pipe body 12 is clamped and squeezed by the forming mold 3 and the vertical pressure block 62 to achieve the initial bending of the fitting. During the initial bending, the pressure sensor 96 detects the bending force on the pipe body 12 in real time (the pipe wall directly contacts and presses the pressure sensor 96, and the pressure sensor 96 converts the mechanical pressure into an electrical signal), and transmits the pressure data to the processor 50 in real time. The processor 50 adjusts the output hydraulic pressure of the top hydraulic cylinder 4 in real time according to the comparison between the pressure value and the preset standard value to ensure that the bending force is adapted to the outer diameter of the current pipe body 12 and avoids the problem of over-bending or under-bending.

[0091] After the initial bend, the bending assembly 6 pauses operation, and the acquisition assembly 20 starts, entering the secondary bend judgment process. The bidirectional linear module 201 starts, and its two sets of moving parts drive their respective fixed second diffuse reflection photoelectric sensors 202 to move closer to each other at a uniform speed. During the movement, each second diffuse reflection photoelectric sensor 202 (the specific working principle for acquiring values ​​at the underlying level is the same as the first diffuse reflection photoelectric sensor 102, i.e., it first emits its own light, then illuminates the object, and then the reflected light is received; the distance to the object is determined by the change in light intensity / distance, which will not be elaborated further) will successively pass one side of the pipe body 12 after the initial bend. When it passes axially through both ends of the arc-shaped sidewall of the pipe body 12 on that side, it will intermittently acquire two identical detection values, such as... Figure 18As shown, the shorter side has a value of L2, and the longer side has a value of L3. The processor 50 calls the preset distance L1 between the second diffuse reflection photoelectric sensor 202 and the bottom of the forming mold 3. By comparing the values ​​of L1 with L2 and L3, the relative position of the bottom end of one side of the pipe body 12 and the forming mold 3 is determined: when L1≤L2, it means that the side of the pipe body 12 does not extend below the forming mold 3, and no secondary bending is required. The secondary bending mechanism on the same side of the mounting bracket 11 is not activated. When L1>L2, it means that the side of the pipe body 12 extends below the forming mold 3, and a secondary bending is required. The processor 50 controls the bottom hydraulic cylinder 64 and the second auxiliary hydraulic cylinder on that side. When 66 is started, the piston end of the bottom hydraulic cylinder 64 drives the lower mold 65 to move axially, and the piston end of the second auxiliary hydraulic cylinder 66 drives the horizontal pressure block 67 to move axially. The position of the horizontal pressure block 67 is adjusted according to the outer diameter value obtained above, and the pipe body 12 is bent twice on this side. At the same time, the axial movement distance of the lower mold 65 is adjusted according to the difference between L1 and L2 to ensure that the length of the second bending meets the processing requirements. This adapts to the processing of pipes with different lengths of second bending, eliminating the need for repeated loading and unloading and transfer, thus improving work efficiency. It is worth noting that when the current batch of pipe body 12 does not require a second bending on one or both sides, the corresponding second diffuse reflection photoelectric sensor 202 will not be powered on.

[0092] Whether the pipe body 12 has only completed the initial bend or both the initial and secondary bends, the bending process is complete. At this point, the processor 50 sends a reset signal to each working component, and all components begin to reset synchronously: the piston end of the top hydraulic cylinder 4 retracts, causing the upper die 5 to move in the opposite direction along the axial direction and return to its initial position; the piston end of the center hydraulic cylinder 2 retracts, causing the forming die 3 to move downward and reset; the first auxiliary hydraulic cylinder 61, the bottom hydraulic cylinder 64, and the second auxiliary hydraulic cylinder 66 all retract, causing the vertical pressure block 62 and the lower die 65 to retract. The horizontal pressure block 67 returns to its initial position; the bidirectional linear module 201 drives the second diffuse reflection photoelectric sensor 202 to reset. While the upper mold 5 moves in the opposite direction, the processor 50 controls the jetting equipment to start. The airflow passes through the two sets of jetting nozzles 30 set at the arc groove 63 on the upper mold 5 and blows towards the formed pipe body 12. Under the thrust of the uniform airflow, the pipe body 12 uses the inclined structure at the top of the frame 1 to slide smoothly down the inclined surface, achieving non-deviation and non-collision unloading. Thus, the entire pipe bending process is completed.

[0093] Throughout the entire processing flow, the controller 40 serves as the core control component, controlling the central hydraulic cylinder 2, the top hydraulic cylinder 4, the first auxiliary hydraulic cylinder 61, the bottom hydraulic cylinder 64, the second auxiliary hydraulic cylinder 66, the main hydraulic cylinder 71, the multi-jaw centering hydraulic chuck 73, the slave hydraulic cylinder 74, the cutting motor 76, the dust extraction equipment, the first vertical hydraulic cylinder 84, the second vertical hydraulic cylinder 85, and the telescopic inductive switch 91 (specifically, when the cut pipe body 12 is naturally lowered by the first vertical hydraulic cylinder 84 and comes into contact with the outer wall of the mounting bracket 11, it directly presses the corresponding telescopic inductive switch 91, causing its contacts to close. The switch is pressed, and then a trigger signal is sent to the processor 50. After receiving the signal, the processor 50 activates the pressure sensor 96 and enters the bending pressure detection preparation state). The stepper motor 93, pressure sensor 96, infrared distance sensor 101, first diffuse reflection photoelectric sensor 102, bidirectional linear module 201, second diffuse reflection photoelectric sensor 202, and jet equipment are uniformly controlled to ensure that each component moves in an orderly manner according to a preset sequence. The processor 50 is responsible for receiving data transmitted by each sensor, including the outer diameter data of the first diffuse reflection photoelectric sensor 102, the displacement data of the infrared distance sensor 101, the pressure data of the pressure sensor 96, and the detection data of the second diffuse reflection photoelectric sensor 202. It performs rapid calculation and processing on this data and sends the processed control signal to the corresponding execution component to ensure that each step is executed accurately. This enables automated and intelligent pipe bending processing of pipe bodies 12 with different outer diameters, improving processing efficiency and processing accuracy.

[0094] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0095] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0096] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0097] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An automated pipe bending device, comprising a frame (1), wherein a controller (40) and a processor (50) are fixedly installed inside the frame (1), and a mounting bracket (11) is fixedly installed at the top of the frame (1), and a forming mold (3) and an upper mold (5) capable of axial movement are provided on the frame (1), characterized in that: The frame (1) is also provided with a pipe bending assembly (6), which includes a vertical pressure block (62) and a horizontal pressure block (67) that can move axially. The pipe bending assembly (6) also includes an arc groove (63), which is opened on the upper mold (5). The forming mold (3), the vertical pressure block (62) and the horizontal pressure block (67) jointly abut against the extruded pipe body (12) to bend it as required. The pipe fitting body (12) is also provided with a moving component (9) on its exterior. The moving component (9) includes multiple telescopic inductive switches (91). The multiple telescopic inductive switches (91) are fixedly installed in a linear array at equal intervals inside the mounting frame (11). The moving component (9) also includes a fixed frame (92), an asynchronous motor (93), a one-way lead screw (94), a moving frame (95), and a pressure sensor (96). The fixed frame (92) is fixedly installed inside the side wall of the forming mold (3). The asynchronous motor (93) is fixedly installed inside the fixed frame (92). The asynchronous motor (93) outputs... A one-way screw (94) is fixedly installed at the outlet end. Both ends of the one-way screw (94) are rotatably installed inside the fixed frame (92) through bearing components. A movable frame (95) is threaded onto the one-way screw (94). The movable frame (95) is slidably installed on the fixed frame (92) through bearing components. The outer wall of the center of the movable frame (95) is fixedly connected to the outer wall of the center of the pressure sensor (96). During the bending process of the pipe body (12), it squeezes and abuts against the pressure sensor (96). During this process, the cross section where the center of the pipe body (12) is located always coincides with the center cross section of the pressure sensor (96). An identification component (10) is provided on the outside of the fixed frame (92). The identification component (10) includes an infrared distance sensor (101) and a first diffuse reflection photoelectric sensor (102). The transmitting end of the infrared distance sensor (101) is fixedly installed on the fixed frame (92), and the receiving end of the infrared distance sensor (101) is fixedly installed on the moving frame (95) to obtain the displacement of the moving frame (95) in real time. The pressure sensor (96) is fixedly installed with a first diffuse reflection photoelectric sensor (102) on the outside, which is used to automatically obtain the outer diameter of the pipe body (12).

2. The automated pipe bending equipment according to claim 1, characterized in that: A central hydraulic cylinder (2) is fixedly installed on the lower surface of the top of the frame (1). The piston end of the central hydraulic cylinder (2) is fixedly connected to the bottom center of the forming mold (3). The forming mold (3) passes through the mounting frame (11). A top hydraulic cylinder (4) is fixedly installed on the upper surface of the top of the frame (1). The piston end of the top hydraulic cylinder (4) is fixedly connected to the center of the outer wall of the upper mold (5). The upper mold (5) is slidably installed inside the mounting frame (11).

3. The automated pipe bending equipment according to claim 1, characterized in that: The pipe bending assembly (6) also includes a first auxiliary hydraulic cylinder (61), a bottom hydraulic cylinder (64), a lower mold (65), and a second auxiliary hydraulic cylinder (66). The first auxiliary hydraulic cylinder (61) is fixedly installed on the inner wall of the upper mold (5). The piston end of the first auxiliary hydraulic cylinder (61) is fixedly connected to the center of the outer wall of the vertical pressure block (62). The bottom hydraulic cylinder (64) is fixedly installed on the upper surface of the top of the frame (1). The piston end of the bottom hydraulic cylinder (64) is fixedly installed on the lower mold (65). The inner wall of the lower mold (65) is fixedly installed on the second auxiliary hydraulic cylinder (66). The lower mold (65) is slidably installed inside the mounting frame (11). The piston end of the second auxiliary hydraulic cylinder (66) is fixedly connected to the center of the outer wall of the horizontal pressure block (67).

4. The automated pipe bending equipment according to claim 3, characterized in that: The first auxiliary hydraulic cylinder (61), vertical pressure block (62), bottom hydraulic cylinder (64), lower mold (65), second auxiliary hydraulic cylinder (66) and horizontal pressure block (67) are provided in two sets and are mirror images of each other on both sides of the forming mold (3).

5. The automated pipe bending equipment according to claim 1, characterized in that: The pipe body (12) is provided with a cutting assembly (7) on the outside. The cutting assembly (7) includes a main hydraulic cylinder (71), a mounting block (72) and a multi-jaw centering hydraulic chuck (73). The piston end of the main hydraulic cylinder (71) and the outer wall of one end of the mounting block (72) are both fixedly installed with multi-jaw centering hydraulic chucks (73). The two sets of multi-jaw centering hydraulic chucks (73) clamp and fix the outside of the pipe body (12).

6. The automated pipe bending equipment according to claim 5, characterized in that: The cutting assembly (7) also includes a hydraulic cylinder (74), a push plate (75), a cutting motor (76), a saw blade (77), and a dust collection hood (78). The hydraulic cylinder (74) is fixedly installed on the top surface of the frame (1). One end of the push plate (75) is fixedly installed on the piston end of the hydraulic cylinder (74). The other end of the push plate (75) is fixedly installed on the cutting motor (76). The output end of the cutting motor (76) is fixedly installed on the saw blade (77). The large end of the dust collection hood (78) is fixedly installed on the side of the mounting block (72) near the forming mold (3). The small end of the dust collection hood (78) is connected to the input end of the dust collection device through a hose.

7. The automated pipe bending equipment according to claim 6, characterized in that: The pipe body (12) is also provided with a conveying assembly (8). The conveying assembly (8) includes a side frame (81), a feeding frame (82), a feeding roller (83), a first vertical hydraulic cylinder (84), and a second vertical hydraulic cylinder (85). The feeding frame (82) is fixedly installed at the top of the side frame (81). Multiple sets of feeding rollers (83) are rotatably installed on the feeding frame (82) through bearing components. The multiple sets of feeding rollers (83) jointly support and convey the pipe body (12) for feeding. The first vertical hydraulic cylinder (84) and the second vertical hydraulic cylinder (85) are fixedly installed on the lower surface of the top of the frame (1). The piston end of the first vertical hydraulic cylinder (84) is fixedly connected to the outer wall of the main hydraulic cylinder (71), and the piston end of the second vertical hydraulic cylinder (85) is fixedly connected to the outer wall of the mounting block (72).

8. The automated pipe bending equipment according to claim 7, characterized in that: The top of the frame (1) is provided with an acquisition component (20), which includes a bidirectional linear module (201) and a second diffuse reflection photoelectric sensor (202). The two sets of moving parts of the bidirectional linear module (201) are fixedly installed with the second diffuse reflection photoelectric sensor (202). The two second diffuse reflection photoelectric sensors (202) are used to automatically acquire the length of the two sides of the pipe body (12) after the initial bending, so as to form more shapes of the pipe body (12).

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