150-diameter multi-layer die pipe bending machine

Abstract

The 150-diameter multi-layer die pipe bending machine comprises a supporting base, the top end of the supporting base is fixedly connected with a support, the top end of the support is provided with a feeding assembly, and the feeding assembly is used for pushing a straight pipe; the loading vertical plate is fixedly connected to one end of the support, a pipe bending assembly is arranged on the side, away from the support, of the loading vertical plate, and the pipe bending assembly is used for being matched with the feeding assembly to bend a straight pipe; and the detection plate is fixedly connected to the top end of the supporting base, and one side of the detection plate is fixedly connected with a supporting frame. Through structural cooperation of the feeding assembly and the pipe bending assembly, rapid adjustment can be carried out in the straight pipe bending process according to the pipe bending conditions, so that overall pipe bending machining is more continuous, the pipe bending machining efficiency is guaranteed, the transmission ratio in the pipe bending process can be adjusted according to torque changes in the pipe bending process, and the pipe bending efficiency is improved. And the overall operation efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe bending processing, and particularly relates to a 150-diameter multi-layer die bending machine. BACKGROUND

[0002] Pipe bending is a kind of pipe fitting which is bent into a certain angle or shape through plastic deformation, can adapt to complex spatial layout, reduce the joints and leakage points of the pipe system, and improve the reliability and efficiency of the system. With the increasing demand for flexibility and aesthetics of the pipe system in modern engineering, the application of pipe bending becomes more and more extensive. At present, the pipe bending is realized by means of a pipe bending machine. However, the machine head of the pipe bending machine in the traditional technology is fixed, and it is difficult to quickly adjust according to the bending conditions of the pipe in the application process, so that the pipe bending operation is not continuous, which greatly affects the processing efficiency of the pipe bending.

[0003] Therefore, the present application provides a 150-diameter multi-layer die bending machine to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a 150-diameter multi-layer die bending machine to solve the above problems.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme: a 150-diameter multi-layer die bending machine, comprising: A support base, the top end of the support base is fixedly connected with a support, the top end of the support is provided with a feeding assembly, and the feeding assembly is used for pushing a straight pipe; A loading vertical plate, the loading vertical plate is fixedly connected at one end of the support, and the loading vertical plate is provided with a pipe bending assembly on the side away from the support, and the pipe bending assembly is used for bending the straight pipe in cooperation with the feeding assembly; A detection plate, the detection plate is fixedly connected at the top end of the support base, one side of the detection plate is fixedly connected with a support frame, the top end of the support frame is fixedly connected with an industrial camera, and the top end of the detection plate is provided with a stability maintaining assembly, and the stability maintaining assembly is used for forming the outer diameter, ovality and scratch detection of the bent pipe in cooperation with the industrial camera.

[0006] Preferably, the feeding assembly comprises: A linear guide rail A, the linear guide rail A is fixedly connected at the top end of the support, a displacement frame A is slidably connected on the linear guide rail A, the top end of the displacement frame A is fixedly connected with a positioning frame, a transmission roller is rotatably connected on one side of the positioning frame, and a pneumatic chuck is assembled on the side away from the positioning frame of the transmission roller. Double speed reducer A, the double speed reducer A is fixedly connected on the side of the positioning frame far from the transmission roller, and the power output end of the double speed reducer A is fixedly connected with the transmission roller, the top end of one side of the double speed reducer A is fixedly connected with the transmission motor A, and the output end of the transmission motor A is fixedly connected with the power input end of the double speed reducer A; Transmission screw rod, the transmission screw rod is rotationally connected at the top end of the inner side of the support, and the middle part of the bottom end of the displacement frame A is also threadedly connected to the outer side of the transmission screw rod, the other end of the support is fixedly connected with a double speed reducer B, and the power output end of the double speed reducer B is fixedly connected with the transmission screw rod, the bottom of one side of the double speed reducer B is fixedly connected with a transmission motor B, and the output end of the transmission motor B is fixedly connected with the power input end of the double speed reducer B.

[0007] Preferably, the pipe bending assembly comprises: Limiting block A, the limiting block A is fixedly connected on the side of the loading vertical plate far from the support, the middle part of one side of the loading vertical plate is fixedly connected with a gas cylinder A; Longitudinal vertical plate, one side of the longitudinal vertical plate is fixedly connected with a straight line slide corresponding to the limiting block A, the straight line slide is also slidingly connected inside the corresponding limiting block A, and the output end of the gas cylinder A is fixedly connected with the longitudinal vertical plate, the other side of the longitudinal vertical plate is fixedly connected with a straight line guide rail B vertically, the middle part of the other side of the straight line guide rail B is fixedly connected with a gas cylinder B; Pushing frame, the pushing frame is slidingly connected on the straight line guide rail B, and the output end of the gas cylinder B is fixedly connected with the pushing frame, the top of the pushing frame is vertically rotationally connected with a main shaft, the outer side of the main shaft is fixedly connected with a plurality of pipe bending discs, and the outer side of each pipe bending disc is fixedly connected with a forming die A; Double speed reducer C, the double speed reducer C is fixedly connected at the bottom of one end of the pushing frame, and the power output end of the double speed reducer C is fixedly connected with the main shaft, the bottom of the double speed reducer C is fixedly connected with a transmission motor C, and the output end of the transmission motor C is also fixedly connected with the main shaft; Pipe bending frame, the pipe bending frame is fixedly connected on the main shaft, the inner side of the pipe bending frame is slidingly connected with a displacement seat, one end of the displacement seat close to the forming die A is fixedly connected with a forming die B corresponding to the forming die A, the side of the pipe bending frame far from the pushing frame is fixedly connected with an oil cylinder A, and the output end of the oil cylinder A is fixedly connected with the displacement seat; Limiting assembly, the limiting assembly is assembled on one side of the top of the pushing frame, for limiting when the straight pipe is bent.

[0008] Preferably, the limiting assembly comprises: A limiting frame is fixedly connected to one side of the top of the push frame. An adjusting plate is slidably connected to the inner side of the limiting frame. A hydraulic cylinder B is fixedly connected to the end of the limiting frame away from the push frame, and the output end of the hydraulic cylinder B is fixedly connected to the adjusting plate. A rodless cylinder is fixedly connected to the top of one side of the adjusting plate. The output end of the rodless cylinder is fixedly connected to a support frame, and one side of the support frame is fixedly connected to a guide frame adapted to the forming mold B.

[0009] Preferably, the stabilization component includes: Two support seats are fixedly connected to the two ends of the top of the detection plate, and an adjusting shaft is rotatably connected to the middle of the top of the support seat. A fixed clamping plate is fixedly connected to one side of the top of the adjusting shaft. An extension ear is fixedly connected to the other side of the top of the adjusting shaft. A displacement rod is slidably connected to the middle of the extension ear, and a movable clamping plate is fixedly connected to one end of the displacement rod near the fixed clamping plate. A displacement plate is slidably connected to the outside of the adjusting shaft. A linkage plate is rotatably connected between the displacement plate and the displacement shaft. A helical spring is fixedly connected between the top of the displacement plate and the adjusting shaft. A guide rod is vertically rotatably connected to the middle of one end of the displacement plate inside the adjusting shaft. An assembly rod is fixedly connected to one side of the guide rod. A central shaft is rotatably connected to the other side of the detection plate. A transmission motor D is fixedly connected to the top of one end of the detection plate, and the output end of the transmission motor D is also fixedly connected to the central shaft. Eccentric plates are fixedly connected to both ends of the central shaft. A guide slot is opened in the middle of the eccentric plate, and the two assembly rods are respectively movably connected inside the two guide slots.

[0010] Preferably, a storage rack is fixedly connected to one end of the top of the bracket, and two guide wheels are rotatably connected to the top of the storage rack.

[0011] Preferably, a mounting base is fixedly connected to the top of the bracket near the placement rack, and a resistance wire is fixedly connected to the top of the mounting base.

[0012] Preferably, a limiting strip is fixedly connected to the top of one side of the adjusting plate, a limiting slider is fixedly connected to one end of the support frame near the limiting strip, and the limiting slider is also slidably connected to the outside of the limiting strip.

[0013] Preferably, both the fixed clamping plate and the movable clamping plate are arc-shaped structures, and anti-slip pads are fixedly connected to the ends of the fixed clamping plate and the movable clamping plate that are close to each other.

[0014] Preferably, the end of the displacement rod away from the moving clamp and the top of the end of the displacement plate are both fixedly connected to mounting ears, and the linkage plate is connected between the two mounting ears through a rotating shaft.

[0015] Beneficial effects This invention provides a 150mm diameter multi-layer die pipe bending machine. Compared with the prior art, it has the following advantages: (1) The 150mm diameter multi-layer mold pipe bending machine, through the structural cooperation of the feeding component and the bending component, can quickly adjust according to the bending conditions of the pipe during the straight pipe bending process, making the overall pipe bending process more continuous, ensuring the bending efficiency, and can adjust the transmission ratio during pipe bending according to the torque change during pipe bending, effectively improving the overall operating efficiency.

[0016] (2) The 150mm diameter multi-layer mold pipe bending machine, through the structural cooperation of industrial camera and maintenance components, can provide data on the outer diameter, ovality and scratches of the bent pipe after the pipe is formed, so that personnel can judge whether the bent pipe meets the subsequent use requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a 150mm diameter multi-layer mold pipe bending machine according to this application.

[0018] Figure 2 yes Figure 1 The front view shown.

[0019] Figure 3 yes Figure 1 The diagram shows the structure of the feeding assembly.

[0020] Figure 4 yes Figure 1 The diagram shows the structure of the pipe bending assembly.

[0021] Figure 5 yes Figure 4 The diagram shows the separation structure of the limiting block A and the linear slider.

[0022] Figure 6 yes Figure 4 The diagram shows the assembly structure of the pipe bending frame.

[0023] Figure 7 yes Figure 4 The diagram shows the structure of the limiting component.

[0024] Figure 8 yes Figure 1 The diagram shows the structure of the stabilization component.

[0025] Figure 9 yes Figure 8 A magnified view of a portion at point A shown.

[0026] Figure 10 yes Figure 8 The diagram shows the assembly structure of the adjusting shaft.

[0027] Figure 11 yes Figure 10 The diagram shows the separation structure of the adjusting shaft and the displacement plate.

[0028] Figure 12 yes Figure 1 A partial structural diagram of the support shown.

[0029] In the diagram: 1. Support base; 2. Bracket; 3. Feeding assembly; 4. Loading upright; 5. Pipe bending assembly; 6. Detection plate; 7. Support frame; 8. Industrial camera; 9. Stabilization assembly; 10. Linear guide rail A; 11. Displacement frame A; 12. Positioning frame; 13. Drive roller; 14. Pneumatic chuck; 15. Dual-speed reducer A; 16. Drive motor A; 17. Drive screw; 18. Dual-speed reducer B; 19. Drive motor B; 20. Displacement sensor; 21. Limit block A; 22. Cylinder A; 23. Longitudinal upright; 24. Linear slide bar; 25. Linear guide rail B; 26. Cylinder B; 27. Push frame; 28. Main shaft; 29. ​​Pipe bending disc; 30. Forming mold A; 31. Dual-speed reducer C; 32. Drive motor C; 33. Pipe bending frame; 34. Displacement seat; 35. Forming mold B; 36. Hydraulic cylinder A; 37. Limiting frame; 38. Adjusting plate; 39. Hydraulic cylinder B; 40. Bearing frame; 41. Guide frame; 42. Rodless cylinder; 43. Support seat; 44. Adjusting shaft; 45. Fixed clamping plate; 46. Extension ear; 47. Displacement rod; 48. Moving clamping plate; 49. Displacement plate; 50. Linkage plate; 51. Helical spring; 52. Guide rod; 53. Assembly rod; 54. Central shaft; 55. Drive motor D; 56. Eccentric plate; 57. Guide slot; 58. Placement frame; 59. Guide wheel; 60. Mounting seat; 61. Resistance wire. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-12 A 150mm diameter multi-layer mold pipe bending machine, comprising: Support base 1, support base 2 is fixedly connected to the top of support base 1, support base 2 is provided with a feeding component 3 at the top of support base 2, feeding component 3 is used to push straight pipe; Please refer toFigure 1 In this embodiment, the support base 1 and the bracket 2 are formed by casting, which can effectively improve the overall strength. Please refer to Figure 12 In this embodiment, a aligning frame 58 is fixedly connected to one end of the top of the bracket 2. Two guide wheels 59 are rotatably connected to the top of the aligning frame 58. By assembling the guide wheels 59 with the aligning frame 58, the straight pipe can be assisted and supported during the straight pipe push to prevent the straight pipe from deviating. Please refer to Figure 12 In this embodiment, a mounting base 60 is fixedly connected to one end of the top of the bracket 2 near the placement frame 58. A resistance wire 61 is fixedly connected to the top of the mounting base 60. By setting the resistance wire 61, when the straight tube passes through the resistance wire 61, the heat generated by the operation of the resistance wire 61 will raise the surface temperature of the straight tube and reduce the deformation resistance. After repeated experiments, it was found that when the straight pipe was preheated to 200℃, the deformation resistance decreased by 30%. Loading plate 4 is fixedly connected to one end of bracket 2. A pipe bending assembly 5 is provided on the side of loading plate 4 away from bracket 2. The pipe bending assembly 5 is used to cooperate with feeding assembly 3 to bend straight pipes. The detection plate 6 is fixedly connected to the top of the support base 1. A support frame 7 is fixedly connected to one side of the detection plate 6. An industrial camera 8 is fixedly connected to the top of the support frame 7. A stabilization component 9 is provided at the top of the detection plate 6. The stabilization component 9 is used to cooperate with the industrial camera 8 to detect the outer diameter, ovality and scratches of the bent pipe.

[0032] In this embodiment, an image processing system is also included for use with the industrial camera 8 to process the images acquired by the industrial camera 8; The image processing system includes: The preprocessing module uses methods such as threshold segmentation and edge detection to separate the curved pipe from the background, and improves the image quality through methods such as contrast enhancement and sharpening. The outer diameter detection module is used to identify the contour of the bend using an edge detection algorithm. The outer diameter is calculated by measuring the minimum circumcircle or ellipse of the contour. The ellipticity detection module is used to fit the profile of the bent pipe using the least squares method to obtain an elliptical model and calculate the major and minor axes of the ellipse. The ellipticity can be represented by the ratio of the major axis to the minor axis. The scratch detection module uses image processing algorithms to identify abnormal lines or regions in an image, sets thresholds to distinguish scratches from other normal defects, and analyzes the length, width, depth and other characteristics of scratches to determine their severity. The data integration module is used to integrate test results and generate reports; In summary, image processing systems are mature existing technologies and will not be elaborated upon further here; Please refer to Figure 3 In this embodiment, the feeding assembly 3 includes: Linear guide rail A10 is fixedly connected to the top of bracket 2. A displacement frame A11 is slidably connected to linear guide rail A10. A positioning frame 12 is fixedly connected to the top of displacement frame A11. A transmission roller 13 is rotatably connected to one side of positioning frame 12. A pneumatic chuck 14 is mounted on the side of transmission roller 13 away from positioning frame 12. The pneumatic chuck 14 mainly includes: Shell: Made of high-strength material to withstand the forces generated during processing.

[0033] Fixture block: Located inside the housing, used to directly contact and fix the workpiece.

[0034] Piston: A component inside the housing that is driven by compressed air. The movement of the piston drives the opening and closing of the clamping blocks.

[0035] Cylinder: The space containing the piston, connected to the inside of the housing, used to house and guide the movement of the piston.

[0036] Air passage: A pipe connecting the air source and the cylinder, used to transport compressed air.

[0037] Solenoid valve: A switch that controls the flow of compressed air to the cylinder.

[0038] Sensors: Used to monitor the position and pressure of the clamping blocks to ensure that the workpiece is properly clamped; In summary, the pneumatic chuck 14 is a mature existing technology, and will not be elaborated further here; A dual-speed reducer A15 is fixedly connected to the side of the positioning frame 12 away from the transmission roller 13, and the power output end of the dual-speed reducer A15 is fixedly connected to the transmission roller 13. A transmission motor A16 is fixedly connected to the top of one side of the dual-speed reducer A15, and the output end of the transmission motor A16 is fixedly connected to the power input end of the dual-speed reducer A15. The transmission screw 17 is rotatably connected to the top of the inner side of the bracket 2, and the middle of the bottom end of the displacement frame A11 is also threaded to the outer side of the transmission screw 17. The other end of the bracket 2 is fixedly connected to a dual-speed reducer B18, and the power output end of the dual-speed reducer B18 is fixedly connected to the transmission screw 17. The bottom of one side of the dual-speed reducer B18 is fixedly connected to a transmission motor B19, and the output end of the transmission motor B19 is fixedly connected to the power input end of the dual-speed reducer B18. Please refer to Figures 4-6 In this embodiment, the pipe bending assembly 5 includes: Limiting block A21 is fixedly connected to the side of the loading plate 4 away from the bracket 2, and cylinder A22 is fixedly connected to the middle of one side of the loading plate 4. A longitudinal vertical plate 23 has a linear slide bar 24 corresponding to the limiting block A21 that is horizontally fixedly connected to one side of the longitudinal vertical plate 23. The linear slide bar 24 is also slidably connected inside the corresponding limiting block A21. The output end of the cylinder A22 is fixedly connected to the longitudinal vertical plate 23. A linear guide rail B25 is vertically fixedly connected to the other side of the longitudinal vertical plate 23. A cylinder B26 is fixedly connected to the middle of the other side of the linear guide rail B25. More specifically, displacement sensors 20 are fixedly connected to the middle of one side of the loading plate 4 and the top of the longitudinal plate 23. The displacement sensors 20 obtain the movement of the longitudinal plate 23 and the push frame 27, which can be converted into the bending angle and accuracy. The bending angle error is about 0.00382°, and thermal expansion can be compensated in a closed loop based on the data. Push frame 27 is slidably connected to linear guide rail B25, and the output end of cylinder B26 is fixedly connected to push frame 27. The top of push frame 27 is vertically rotatably connected to main shaft 28. Multiple bent tube discs 29 are fixedly connected to the outside of main shaft 28. A forming mold A30 is fixedly connected to the outside of each bent tube disc 29. A dual-speed reducer C31 is fixedly connected to the bottom of one end of the push frame 27, and the power output end of the dual-speed reducer C31 is fixedly connected to the main shaft 28. A drive motor C32 is fixedly connected to the bottom of the dual-speed reducer C31, and the output end of the drive motor C32 is also fixedly connected to the main shaft 28. More specifically, by setting up dual-speed reducers C31, A15, and B18, it is possible to transmit at slow speeds when there is high torque and at high speeds when there is low torque, thereby improving the operating efficiency of the equipment. The pipe bending frame 33 is fixedly connected to the main shaft 28. The inner side of the pipe bending frame 33 is slidably connected to the displacement seat 34. The end of the displacement seat 34 near the forming mold A30 is fixedly connected to the forming mold B35 corresponding to the forming mold A30. The side of the pipe bending frame 33 away from the push frame 27 is fixedly connected to the hydraulic cylinder A36, and the output end of the hydraulic cylinder A36 is fixedly connected to the displacement seat 34. A limiting component is mounted on one side of the top of the pusher 27 to limit the straight tube when it is bent. Please refer to Figure 7 In this embodiment, the limiting component includes: The limiting frame 37 is fixedly connected to one side of the top of the push frame 27. An adjusting plate 38 is slidably connected to the inner side of the limiting frame 37. A hydraulic cylinder B39 is fixedly connected to the end of the limiting frame 37 away from the push frame 27, and the output end of the hydraulic cylinder B39 is fixedly connected to the adjusting plate 38. The rodless cylinder 42 is fixedly connected to the top of one side of the adjusting plate 38. The output end of the rodless cylinder 42 is fixedly connected to the support frame 40, and one side of the support frame 40 is fixedly connected to the guide frame 41 adapted to the forming mold B35. Please refer to Figure 7 In this embodiment, a limiting strip is fixedly connected to the top of one side of the adjusting plate 38, and a limiting slider is fixedly connected to one end of the support frame 40 near the limiting strip. The limiting slider is also slidably connected to the outside of the limiting strip. By setting the limiting slider and the limiting strip, the displacement path of the support frame 40 can be effectively guided to avoid uncontrollable sliding of the support frame 40. The shape of the limiting strip can be I-shaped. Please refer to Figures 4-7 In this embodiment, arc-shaped grooves are provided at the ends of the forming molds A30 and B35 that are close to each other and in the middle of the guide frame 41. When the forming molds B35 and A30 are assembled, the straight tube can be restricted between the forming molds A30 and B35. When the main shaft 28 rotates, the straight tube is bent in accordance with the contour of the bending plate 29. Please refer to Figures 8-11 In this embodiment, the stabilization component 9 includes: Two support seats 43 are fixedly connected to the two ends of the top of the detection plate 6 respectively. An adjusting shaft 44 is rotatably connected to the middle of the top of the support seat 43. A fixed clamping plate 45 is fixedly connected to one side of the top of the adjusting shaft 44. Please refer to Figure 11 The adjusting shaft 44 has a hollow structure. By adjusting the structural characteristics of the adjusting shaft 44, the space inside the adjusting shaft 44 can be equipped with the guide rod 52. In this embodiment, the adjusting shaft 44 and the guide rod 52 are coaxially arranged. An extension ear 46 is fixedly connected to the other side of the top of the adjusting shaft 44. A displacement rod 47 is slidably connected to the middle of the extension ear 46. A movable clamping plate 48 is fixedly connected to one end of the displacement rod 47 near the fixed clamping plate 45. Please refer to Figure 11 In this embodiment, both the fixed clamping plate 45 and the movable clamping plate 48 are arc-shaped structures, and anti-slip pads are fixedly connected to the ends of the fixed clamping plate 45 and the movable clamping plate 48 that are close to each other. Through the shape characteristics of the fixed clamping plate 45 and the movable clamping plate 48, the fixed clamping plate 45 and the movable clamping plate 48 can have a greater contact with the surface of the bent pipe. At the same time, with the setting of the anti-slip pads, the friction between the fixed clamping plate 45 and the bent pipe and between the movable clamping plate 48 and the bent pipe after contact can be increased, thus preventing the bent pipe from loosening. The displacement plate 49 is slidably connected to the outside of the adjusting shaft 44. A linkage plate 50 is rotatably connected between the displacement plate 49 and the displacement rod 47. A helical spring 51 is fixedly connected between the top of the displacement plate 49 and the adjusting shaft 44. A guide rod 52 is vertically rotatably connected to the middle of one end of the displacement plate 49 inside the adjusting shaft 44. An assembly rod 53 is fixedly connected to one side of the guide rod 52. Please refer to Figure 11 In this embodiment, the top of the displacement rod 47 away from the moving clamp 48 and the top of the displacement plate 49 are both fixedly connected with mounting ears, and the linkage plate 50 is connected between the two mounting ears through a rotating shaft. By setting the mounting ears, the linkage plate 50 can be effectively assembled with the rotating shaft, ensuring the stability of the linkage plate 50 in linkage between the displacement plate 49 and the displacement rod 47. The central shaft 54 ​​is rotatably connected to the other side of the detection plate 6. A drive motor D55 is fixedly connected to the top of one end of the detection plate 6, and the output end of the drive motor D55 is also fixedly connected to the central shaft 54. An eccentric plate 56 is fixedly connected to both ends of the central shaft 54. A guide slot 57 is opened in the middle of the eccentric plate 56, and two assembly rods 53 are respectively movably connected inside the two guide slots 57. In summary, it also includes a CNC system to achieve linkage between various components during the pipe bending process, ensuring pipe bending accuracy and reducing the pipe thinning rate. In order to ensure reliable pipe bending accuracy, this invention can use absolute positioning, which is different from the adjustable tie rod used in the market. The purpose is to facilitate the replacement of pipe bending molds, save debugging time, and improve mechanical accuracy. The implementation principle of a 150mm diameter multi-layer molded pipe bending machine in this application embodiment is as follows: First, the straight pipe to be bent is positioned by the pneumatic chuck 14. Then, the drive motor B19 is started, and the power of the drive motor B19 is transmitted to the drive screw 17 by means of the dual-speed reducer B18. The drive screw 17 rotates under the support of the bracket 2. With the connection between the drive screw 17 and the displacement frame A11, the displacement frame A11 can drive the straight pipe to move towards the bending disc 29 under the guidance of the linear guide rail A10. As the straight pipe is continuously adjusted, it will pass through the resistance wire 61. The heat generated by the operation of the resistance wire 61 will raise the surface temperature of the straight pipe, thereby achieving preheating of the straight pipe before bending. The starting cylinder A22 pushes the longitudinal vertical plate 23 to move under the guidance of the limiting block A21, and the starting cylinder B26 drives the pushing frame 27 to adjust vertically until the height of the forming mold A30 corresponds to that of the straight tube. Then, the drive motor B19 is started to push the straight tube into the corresponding forming mold A30. At the same time, the hydraulic cylinder A36 is started to make the forming mold B35 approach the forming mold A30 under the guidance of the displacement seat 34 until the forming mold B35 and the forming mold A30 are in contact, so as to limit the straight tube between the forming mold B35 and the forming mold A30. Then, the hydraulic cylinder B39 is started to push the adjusting plate 38 to move, so that the bearing frame 40 contacts the straight tube and limits the straight tube. The drive motor C32 is started to transmit its power to the main shaft 28 via the dual-speed reducer C31. This causes the main shaft 28 to drive the bending disc 29 and the bending frame 33 to rotate synchronously. Since the straight pipe is confined between the forming mold A30 and the forming mold B35, when the straight pipe rotates with the main shaft 28, it can be bent under the action of the bending disc 29 and the guide frame 41. During the bending process, the rodless cylinder 42 is also started to drive the guide frame 41 to adjust via the support frame 40. Subsequently, cylinders A22 and B26 are started to bring the straight pipe to the bending disc 29 of the appropriate size, thereby controlling the bending range of the pipe. At the same time, the drive motor A16 can be started to transmit its power to the drive roller 13 via the dual-speed reducer A15. Since the straight pipe is positioned by the pneumatic chuck 14, it can be driven to rotate, thereby changing the bending direction of the straight pipe. After the tube is formed, the two ends of the tube are placed on the top of the two adjusting shafts 44. Then, the drive motor D55 is started to drive the central shaft 54 ​​to rotate. With the connection between the central shaft 54 ​​and the eccentric plate 56, the eccentric plate 56 can rotate accordingly. Since the assembly rod 53 is connected inside the guide slot 57, during the adjustment of the eccentric plate 56, the assembly rod 53 can be pushed to move vertically, changing the position of the displacement plate 49 outside the adjusting shaft 44. Since the linkage plate 50 is located between the displacement plate 49 and the displacement rod 47, when the displacement plate 49 is adjusted, the linkage plate 50 can push the displacement rod 47, causing the moving clamp 48 to move closer to the fixed clamp 45, thereby positioning the tube between the fixed clamp 45 and the moving clamp 48. Then, the image of the tube is captured by the industrial camera 8 and processed by the image processing system to obtain the outer diameter, ellipticity and scratch data of the tube. Furthermore, in conjunction with the connection between the adjusting shaft 44 and the support base 43, before the fixed clamping plate 45 and the moving clamping plate 48 are clamped, the adjusting shaft 44 can be rotated to change the orientation of the fixed clamping plate 45 and the moving clamping plate 48, so as to adapt to the ends of the bent pipe with different bending angles.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer die pipe bending machine with a diameter of 150 mm, characterized in that: include: A support base (1) is fixedly connected to a bracket (2) at the top end of the support base (1), and a feeding assembly (3) is provided at the top end of the bracket (2). The feeding assembly (3) is used to push the straight pipe. Loading plate (4), the loading plate (4) is fixedly connected to one end of the bracket (2), and a pipe bending assembly (5) is provided on the side of the loading plate (4) away from the bracket (2). The pipe bending assembly (5) is used to cooperate with the feeding assembly (3) to bend the straight pipe. The detection plate (6) is fixedly connected to the top of the support base (1). A support frame (7) is fixedly connected to one side of the detection plate (6). An industrial camera (8) is fixedly connected to the top of the support frame (7). A stabilization component (9) is provided at the top of the detection plate (6). The stabilization component (9) is used to cooperate with the industrial camera (8) to detect the outer diameter, ellipticity and scratches of the bent pipe.

2. The 150mm diameter multi-layer die pipe bending machine according to claim 1, characterized in that: The feeding assembly (3) includes: Linear guide rail A (10) is fixedly connected to the top of bracket (2). A displacement frame A (11) is slidably connected on the linear guide rail A (10). A positioning frame (12) is fixedly connected to the top of the displacement frame A (11). A transmission roller (13) is rotatably connected to one side of the positioning frame (12). A pneumatic chuck (14) is mounted on the side of the transmission roller (13) away from the positioning frame (12). A dual-speed reducer A (15) is fixedly connected to the side of the positioning frame (12) away from the transmission roller (13), and the power output end of the dual-speed reducer A (15) is fixedly connected to the transmission roller (13). A transmission motor A (16) is fixedly connected to the top of one side of the dual-speed reducer A (15), and the output end of the transmission motor A (16) is fixedly connected to the power input end of the dual-speed reducer A (15). The transmission screw (17) is rotatably connected to the top of the inner side of the bracket (2), and the middle part of the bottom end of the displacement frame A (11) is also threaded to the outer side of the transmission screw (17). The other end of the bracket (2) is fixedly connected to a dual-speed reducer B (18), and the power output end of the dual-speed reducer B (18) is fixedly connected to the transmission screw (17). The bottom of one side of the dual-speed reducer B (18) is fixedly connected to a transmission motor B (19), and the output end of the transmission motor B (19) is fixedly connected to the power input end of the dual-speed reducer B (18).

3. The 150mm diameter multi-layer die pipe bending machine according to claim 1, characterized in that: The pipe bending assembly (5) includes: Limiting block A (21), the limiting block A (21) is fixedly connected to the side of the loading plate (4) away from the bracket (2), and a cylinder A (22) is fixedly connected to the middle of the side of the loading plate (4). A longitudinal vertical plate (23) is provided. A linear slide bar (24) corresponding to a limiting block A (21) is fixedly connected to one side of the longitudinal vertical plate (23). The linear slide bar (24) is also slidably connected inside the corresponding limiting block A (21). The output end of the cylinder A (22) is fixedly connected to the longitudinal vertical plate (23). A linear guide rail B (25) is fixedly connected to the other side of the longitudinal vertical plate (23). A cylinder B (26) is fixedly connected to the middle of the other side of the linear guide rail B (25). A pusher frame (27) is slidably connected to a linear guide rail B (25), and the output end of the cylinder B (26) is fixedly connected to the pusher frame (27). A main shaft (28) is vertically rotatably connected to the top of the pusher frame (27). Multiple bent tube discs (29) are fixedly connected to the outside of the main shaft (28), and a forming mold A (30) is fixedly connected to the outside of each bent tube disc (29). A dual-speed reducer C (31) is fixedly connected to the bottom of one end of the push frame (27), and the power output end of the dual-speed reducer C (31) is fixedly connected to the main shaft (28). A transmission motor C (32) is fixedly connected to the bottom of the dual-speed reducer C (31), and the output end of the transmission motor C (32) is also fixedly connected to the main shaft (28). A pipe bending frame (33) is fixedly connected to the main shaft (28). A displacement seat (34) is slidably connected to the inner side of the pipe bending frame (33). A forming mold B (35) corresponding to the forming mold A (30) is fixedly connected to one end of the displacement seat (34) near the forming mold A (30). A hydraulic cylinder A (36) is fixedly connected to the side of the pipe bending frame (33) away from the push frame (27), and the output end of the hydraulic cylinder A (36) is fixedly connected to the displacement seat (34). A limiting component is mounted on one side of the top of the pusher (27) to form a limit when the straight tube is bent.

4. A 150mm diameter multi-layer die pipe bending machine according to claim 3, characterized in that: The limiting component includes: A limiting frame (37) is fixedly connected to one side of the top of the push frame (27). An adjusting plate (38) is slidably connected to the inner side of the limiting frame (37). A hydraulic cylinder B (39) is fixedly connected to one end of the limiting frame (37) away from the push frame (27), and the output end of the hydraulic cylinder B (39) is fixedly connected to the adjusting plate (38). A rodless cylinder (42) is fixedly connected to the top of one side of the adjusting plate (38). The output end of the rodless cylinder (42) is fixedly connected to a support frame (40), and one side of the support frame (40) is fixedly connected to a guide frame (41) adapted to the forming mold B (35).

5. A 150mm diameter multi-layer die pipe bending machine according to claim 4, characterized in that: The stabilization component (9) includes: Two support seats (43) are fixedly connected to the two ends of the top of the detection plate (6). An adjusting shaft (44) is rotatably connected to the middle of the top of the support seat (43). A fixed clamping plate (45) is fixedly connected to one side of the top of the adjusting shaft (44). An extension ear (46) is fixedly connected to the other side of the top of the adjusting shaft (44). A displacement rod (47) is slidably connected to the middle of the extension ear (46). A movable clamping plate (48) is fixedly connected to one end of the displacement rod (47) near the fixed clamping plate (45). A displacement plate (49) is slidably connected to the outside of the adjusting shaft (44). A linkage plate (50) is rotatably connected between the displacement plate (49) and the displacement rod (47). A helical spring (51) is fixedly connected between the top of the displacement plate (49) and the adjusting shaft (44). A guide rod (52) is vertically rotatably connected to the middle of one end of the displacement plate (49) inside the adjusting shaft (44). An assembly rod (53) is fixedly connected to one side of the guide rod (52). A central shaft (54) is rotatably connected to the other side of the detection plate (6). A transmission motor D (55) is fixedly connected to the top of one end of the detection plate (6), and the output end of the transmission motor D (55) is also fixedly connected to the central shaft (54). An eccentric plate (56) is fixedly connected to both ends of the central shaft (54). A guide slot (57) is provided in the middle of the eccentric plate (56), and two assembly rods (53) are movably connected inside the two guide slots (57).

6. A 150mm diameter multi-layer die pipe bending machine according to claim 1, characterized in that: One end of the top of the bracket (2) is fixedly connected to a placement frame (58), and the top of the placement frame (58) is rotatably connected to two guide wheels (59).

7. A 150mm diameter multi-layer die pipe bending machine according to claim 6, characterized in that: The bracket (2) has a mounting base (60) fixedly connected to one end of its top near the placement frame (58), and a resistance wire (61) is fixedly connected to the top of the mounting base (60).

8. A 150mm diameter multi-layer die pipe bending machine according to claim 5, characterized in that: A limiting strip is fixedly connected to the top of one side of the adjusting plate (38), and a limiting slider is fixedly connected to one end of the support frame (40) near the limiting strip, and the limiting slider is also slidably connected to the outside of the limiting strip.

9. A 150mm diameter multi-layer die pipe bending machine according to claim 5, characterized in that: Both the fixed clamping plate (45) and the movable clamping plate (48) are arc-shaped structures, and anti-slip pads are fixedly connected to the ends of the fixed clamping plate (45) and the movable clamping plate (48) that are close to each other.

10. A 150mm diameter multi-layer die pipe bending machine according to claim 5, characterized in that: The displacement rod (47) is fixedly connected to a mounting ear at one end away from the moving clamp (48) and at the top of one end of the displacement plate (49), and the linkage plate (50) is connected between the two mounting ears via a rotating shaft.

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