Pipe bending machine and method of forming

Abstract

The application discloses a pipe bending forming machine and a forming method thereof, and relates to the technical field of pipe processing. The pipe bending forming machine comprises a rack, a first sliding rail arranged at the lower part of the rack, a first processing mechanism connected with the first sliding rail, a first sliding plate and a third sliding plate of the first processing mechanism, a transfer assembly connected with the first sliding plate, and a detection assembly connected with the third sliding plate. A fourth sliding rail is arranged at the upper part of the rack, the extension direction of the fourth sliding rail is parallel to the first sliding rail, and a clamping assembly is connected with the fourth sliding rail. A bend assembly is connected with the side of the rack. The pipe bending forming machine realizes the whole-process treatment from surface cleaning, welding scar detection, lubrication to accurate bending, avoids the occurrence of stress concentration, size precision loss of control and abnormal wear of the mold caused by the welding scar existing on the outside of the pipe to be bent, and significantly improves the forming quality and the service life of the mold.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and in particular to a pipe bending forming machine and its forming method. Background Technology

[0002] Pipe processing is very common and essential in the machinery field. Existing pipe bending processes (such as copper tees) often involve a series of steps including secondary lead filling, stamping, lead removal, lead washing, sawing, polishing, flaring, shaping, and pickling. This pipe bending process is not only complex, but almost all operations are performed manually, resulting in high labor costs, low production efficiency, and high overall production costs.

[0003] A pipe bending forming machine is disclosed in invention patent publication number CN104117559A. By setting a first fixing member with a first worktable and a second worktable, the workpiece is fixed on the first worktable. A fixing groove on the second worktable adjusts and fixes the position of the workpiece before bending, so that the branch pipe of the workpiece is positioned opposite the forming part. During the pipe bending process, the first fixing member secures the branch pipe of the workpiece. Driven by a first driving member, the forming part rotates along a hinge axis, and a pin on the forming part bends the branch pipe, achieving fully automatic pipe bending. This invention utilizes the toughness of metal pipes and uses a pin bending method to bend branch pipes located on the same plane into bends located on different planes at different angles. The processing technology is convenient and the production efficiency is high.

[0004] However, in actual pipe bending operations, if weld scars are present on the exterior of the pipe to be bent, it can easily lead to stress concentration, loss of dimensional accuracy, and abnormal wear of the mold, directly affecting the forming quality and equipment lifespan. Therefore, there is an urgent need to develop a pipe bending machine that can easily identify weld scars and bend only pipes without weld scars. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe bending forming machine and its forming method to address the aforementioned problems. This machine can identify weld scars on the surface of the pipe to be bent and remove the pipe with weld scars from the equipment, thereby avoiding stress concentration, loss of dimensional accuracy, and abnormal wear of the mold caused by weld scars on the outside of the pipe to be bent.

[0006] The technical solution adopted in this invention is as follows: a pipe bending forming machine includes a frame, a first slide rail is provided at the lower part of the frame, the first slide rail is connected to a first processing mechanism, the first processing mechanism includes a first sliding plate and a third sliding plate, the first sliding plate is connected to a transfer component, and the third sliding plate is connected to a detection component; a fourth slide rail is provided at the upper part of the frame, the extension direction of the fourth slide rail is parallel to the first slide rail, and the fourth slide rail is connected to a clamping component; an elbow component is connected to the side of the frame.

[0007] Furthermore, the first processing mechanism also includes a fifth slide rail disposed on the first sliding plate, the extension direction of the fifth slide rail being perpendicular to the first slide rail; the fifth slide rail is connected to a second sliding plate, the second sliding plate is provided with a first motor, the output end of the first motor being connected to the transfer component; a lifting platform is connected to the third sliding plate, the lifting platform being connected to the detection component.

[0008] Furthermore, the transfer assembly includes a first rotating shaft connected to the output end of the first motor, a connecting frame connected to the top of the first rotating shaft, a first lifting frame provided at both ends of the connecting frame, an arc-shaped plate for clamping the pipe to be bent provided on the first lifting frame, and a brush head provided inside the arc-shaped plate; a first push rod is provided at both ends of the first lifting frame, and the first push rod can close the arc-shaped plate when it is extended.

[0009] Furthermore, the detection component includes a first slide groove disposed at the bottom of the lifting platform, the first slide groove being parallel to the first slide rail; at least one slider is connected to the first slide groove, a second lifting frame is connected above the slider, and a camera is connected above the second lifting frame.

[0010] Furthermore, the second lifting frame is also connected to a second push rod; at least one side of the lifting platform is connected to an inclined plate, the inclined plate being parallel to the first sliding groove; a second sliding groove is provided inside the inclined plate, a third push rod is provided in the second sliding groove, the extension direction of the third push rod is the inclination direction of the inclined plate, the telescopic end of the third push rod is connected to a sliding member, the sliding member is also connected to a lamp tube, the lamp tube being used to provide auxiliary lighting for the camera.

[0011] Furthermore, the platform is provided with a mounting bracket at one end of the fourth slide rail, the mounting bracket is provided with a second slide rail, the extension direction of the second slide rail is parallel to the platform surface; the second slide rail is connected to a movable box, the movable box is provided with a third slide rail, the third slide rail is parallel to the second slide rail, and the third slide rail is connected to a second processing mechanism.

[0012] Furthermore, the second processing mechanism includes a fourth sliding plate connected to the third slide rail, and a third lifting frame is provided above the fourth sliding plate; two corner plates are provided above the third lifting frame in a direction perpendicular to the third slide rail, and each corner plate is connected to a second motor, the output end of each of the second motors is connected to a fourth push rod; each of the fourth push rods is connected to a first horizontal plate, one of the first horizontal plates is connected to a mold through a first adjusting rod, and the two ends of the other first horizontal plate are respectively connected to a contact component and a lubrication component through a second adjusting rod.

[0013] Furthermore, the second adjusting rod is connected to the contact assembly via a fixing clip. The contact assembly includes a first fixing ring, and a first outer sleeve is provided on both sides of the first fixing ring.

[0014] Furthermore, the first horizontal plate is connected to the lubrication assembly by a fixing clip; the lubrication assembly includes a second fixing ring, and a second outer sleeve is provided on both sides of the second fixing ring; a through groove is provided at the bottom of the second fixing ring, and a receiving box is connected to the through groove; a connecting pipe is provided outside the second fixing ring, and at least one annular pipe is provided inside the fixing ring, the connecting pipe and the annular pipe are connected through a branch pipe, and the annular pipe is connected to multiple spray pipes.

[0015] A forming method of the pipe bending forming machine as described above includes the following steps:

[0016] S1. Before using the equipment, adjust the clamping components to clamp the pipe to be bent; then turn on the first processing mechanism to perform surface treatment and weld scar detection on the pipe to be bent.

[0017] S2. If there are weld scars on the surface of the pipe to be bent, the transfer assembly will transfer the pipe to be bent out of the equipment.

[0018] S3. If there are no weld scars on the surface of the pipe to be bent, the clamping assembly will transport the pipe to be bent to the second processing mechanism, and the lubrication assembly will lubricate the pipe to be bent.

[0019] S4. After lubrication, the clamping assembly, contact assembly, and mold, together with the elbow assembly, perform bending on the pipe to be bent.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. The pipe bending forming machine and forming method provided by the present invention, through integrated design, realizes the whole process from surface cleaning, weld scar detection, lubrication to precise bending. The whole set of equipment significantly improves the automation level of production, processing accuracy and product qualification rate, and reduces mold wear, with significant comprehensive benefits.

[0022] 2. The pipe bending forming machine and its forming method provided by this invention, by setting up a detection component, can detect whether there are weld scars on the outside of the pipe to be bent, avoiding stress concentration, loss of dimensional accuracy, and abnormal wear of the mold caused by weld scars on the outside of the pipe to be bent. Based on the detection results, the bending operation can be continued or the pipe to be bent can be removed from the equipment to prevent the pipe to be bent with weld scars from contacting the elbow assembly, thereby protecting the mold.

[0023] 3. The pipe bending forming machine and its forming method provided by this invention, by setting up a transfer component, can use the brush head inside the arc plate to clean the outer surface of the pipe to be bent before weld scar detection, thereby removing most of the impurities, reducing the impact of impurities on weld scar detection, and reducing the wear of impurities on the mold. Simultaneously, for pipes to be bent with weld scars, the transfer component can remove them from under the clamping component to avoid affecting subsequent processes.

[0024] 4. The pipe bending forming machine and forming method provided by the present invention, by setting a lubrication component, can perform a circumferential and uniform lubricating oil spraying treatment on the pipe to be bent, which can reduce the friction between the pipe and the mold, prevent tearing and reduce bending force.

[0025] 5. The present invention provides a pipe bending forming machine and forming method, which sets a contact component between the mold and the lubrication component. The first outer jacket and the first fixing ring in the contact component, which are made of waterproof material, isolate the lubricant in a large amount to avoid the mold from contacting the lubricant and causing the clamping section to slip. Attached Figure Description

[0026] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a flowchart of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure from another perspective of the present invention;

[0030] Figure 4 This is a schematic diagram of the first processing mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the transfer component structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the detection component structure of the present invention;

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A;

[0034] Figure 8 This is a schematic diagram of the structure of the second processing mechanism of the present invention;

[0035] Figure 9 This is a schematic diagram of the contact component structure of the present invention;

[0036] Figure 10 This is a schematic diagram of the lubrication assembly structure of the present invention;

[0037] In the diagram, the markings are: 1-stand; 2-first slide rail; 3-first processing mechanism; 301-first sliding plate; 302-fifth slide rail; 303-second sliding plate; 304-first motor; 305-transfer assembly; 3051-first rotating shaft; 3052-connecting frame; 3053-first lifting frame; 3054-first push rod; 3055-arc plate; 306-third sliding plate; 307-lifting platform; 308-detection assembly; 3081-first slide groove; 3082-slider; 3083-second lifting frame; 3084-camera; 3085-second push rod; 3086-second slide groove; 3087-third push rod; 3088-sliding component; 3089-lamp tube; 309-tilting plate; 4-mounting frame; 5-second 6-Slide rail; 7-Moving box; 8-Third slide rail; 9-Second processing mechanism; 10-Fourth sliding plate; 11-Third lifting frame; 12-Angle plate; 13-Second motor; 14-Fourth push rod; 15-Contact assembly; 16-Second horizontal plate; 17-Second adjusting rod; 18-Fixing clamp; 19-First fixing ring; 20-First outer sleeve; 20-Lubrication assembly; 20-Second fixing ring; 21-Connecting pipe; 22-Annular pipe; 23-Spray pipe; 24-Spray nozzle; 25-Second outer sleeve; 26-Receiving box; 27-Through groove; 28-First horizontal plate; 29-First adjusting rod; 20-Mold; 20-Fourth slide rail; 21-Clamping assembly; 22-Elbow assembly. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings.

[0039] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0040] Any feature disclosed in this specification, unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is merely one example of a series of equivalent or similar features.

[0041] A pipe bending forming machine, such as Figure 1-10As shown, the system includes a platform 1, which is the most basic support structure, divided into an upper and a lower section. The upper section is used to transfer pipe fittings without weld spatters to be bent, while the lower section provides a channel for transferring pipe fittings with weld spatters. A first slide rail 2 is provided at the lower part of the platform 1, facilitating the movement of the transfer component 305 and the detection component 308. The first slide rail 2 is connected to a first processing mechanism 3, which can detect weld spatters on pipe fittings, clean the outer surface of pipe fittings, and transfer pipe fittings with weld spatters. The first processing mechanism 3 includes a first sliding plate 301 and a third sliding plate 306. A power system is provided inside the first sliding plate 301 and the third sliding plate 306 to facilitate the movement of the transfer component 305 and the detection component 308 along the first slide rail 2 and to provide support for the movement of the transfer component 305 in the direction perpendicular to the first slide rail 2. The first sliding plate 301 is connected to a transfer component 305, which is used to clean the outer surface of the pipe and transfer pipes with weld spatters out of the equipment. The third sliding plate 306 is connected to a detection component 308, which is equipped with a camera 3084 to detect whether there are weld spatters on the surface of the pipe. A fourth slide rail 9 is provided on the upper part of the frame 1. The extension direction of the fourth slide rail 9 is parallel to the first slide rail 2. The fourth slide rail 9 facilitates the transfer of the pipe. A clamping component 10 is connected to the fourth slide rail 9. The clamping component 10 includes a pneumatic gripper, which clamps the pipe to be bent. An elbow component 11 is connected to the side of the frame 1. The elbow component 11 consists of a servo motor and an angle control wheel. The angle control wheel is used to adjust the bending angle of the object. The servo motor drives the angle control wheel to bend the pipe. The clamping assembly 10 and the elbow assembly 11 are existing structures, and their functions in this application are consistent with those in the prior art. Their specific structures and functions will not be described in detail in this specification.

[0042] The core of this invention lies in setting up a first processing mechanism 3 to detect whether there are weld scars on the exterior of the pipe to be bent. During the pipe bending process, the presence of weld scars on the exterior of the pipe to be bent can lead to stress concentration, loss of dimensional accuracy, and abnormal wear of the mold 810. The first processing mechanism 3 can pre-treat the outer surface of the pipe to be bent, and then detect weld scars on it. Based on the detection results, it can choose to continue the bending process or remove the pipe to be bent from the equipment, thereby screening the pipe to be bent and preventing pipes with weld scars from contacting the elbow assembly 11, thus protecting the mold 810.

[0043] In one alternative implementation, the first processing mechanism 3 further includes a fifth slide rail 302 disposed on the first sliding plate 301. The extension direction of the fifth slide rail 302 is perpendicular to the first slide rail 2. The fifth slide rail 302 is connected to a second sliding plate 303. The fifth slide rail 302 and the second sliding plate 303 together constitute a lateral fine-tuning mechanism, which facilitates the movement of the transfer component 305 in a direction perpendicular to the first slide rail 2, thereby facilitating the clamping of the pipe by the transfer component 305. Furthermore, the second sliding plate 303 is driven by a hydraulic cylinder. A first motor 304 is disposed on the second sliding plate 303. The output end of the first motor 304 is connected to the transfer component 305, and the first motor 304 drives the movement of the transfer component 305. A lifting platform 307 is connected to the third sliding plate 306. The lifting platform 307 is connected to the detection component 308. The lifting platform 307 is used to drive the detection component 308 to adjust its height to ensure that the camera 3084 is in the optimal detection position.

[0044] In one alternative embodiment, the transfer assembly 305 includes a first rotating shaft 3051 connected to the output end of the first motor 304. A connecting frame 3052 is connected to the top of the first rotating shaft 3051, and the connecting frame 3052 serves as a mounting base for a first lifting frame 3053. Both ends of the connecting frame 3052 are provided with first lifting frames 3053, which are used to control the lifting movement of the transfer assembly 305. An arc-shaped plate 3055 for clamping the pipe to be bent is provided on the first lifting frame 3053. A brush head is provided inside the arc-shaped plate 3055. The arc-shaped plate 3055 not only acts as a clamping claw to transfer pipes with weld scars out of the equipment, but the brush head installed inside can also act as a cleaning tool to clean the outer surface of the pipe, removing most of the impurities from the outside of the pipe to be bent, reducing the impact of impurities on the detection assembly 308, and reducing wear on the mold 810. The first lifting frame 3053 is provided with a first push rod 3054 at both ends. When the first push rod 3054 is extended, it can close the arc plate 3055. The first push rod 3054 drives the arc plate 3055 to perform horizontal opening and closing movements, thereby realizing the clamping and release of the pipe to be bent.

[0045] In one alternative implementation, the detection component 308 includes a first slide groove 3081 disposed at the bottom of the lifting platform 307. The first slide groove 3081 is parallel to the first slide rail 2. The first slide groove 3081 provides direction for the movement of the camera 3084, ensuring that the camera 3084 can be positioned at the optimal observation position. At least one slider 3082 is connected to the first slide groove 3081. The slider 3082 provides basic support for the movement of the camera 3084 in the first slide groove 3081. A second lifting frame 3083 is connected above the slider 3082. The second lifting frame 3083 is used to independently control the height of the camera 3084. The camera 3084 is connected above the second lifting frame 3083 and is used to acquire real-time images of the surface of the pipe to be bent and transmit the images to the operator for manual judgment of the presence and approximate location of weld spatter.

[0046] In one alternative implementation, the second lifting frame 3083 is further connected to a second push rod 3085. A marker pen can be mounted on the top of the second push rod 3085. The second push rod 3085 drives the marker pen to move up and down. When the operator finds weld spatter on the pipe fitting, the worker can activate the corresponding second push rod 3085, causing the marker pen to move upward to contact the pipe fitting to be bent, marking the approximate location of the weld spatter for subsequent processing. At least one side of the lifting platform 307 is connected to an inclined plate 309, which is parallel to the first slide groove 3081. The inclined plate 309 supports and fixes the entire light source adjustment mechanism at a specific angle. The inclined plate 309 has a second groove 3086 inside, which provides an installation and movement track for the third push rod 3087 and the sliding member 3088. The third push rod 3087 is installed within the second groove 3086, extending in the same direction as the inclination of the inclined plate 309. The third push rod 3087 drives the sliding member 3088 to move within the second groove 3086. The telescopic end of the third push rod 3087 is connected to the sliding member 3088, which is also connected to a lamp tube 3089. The lamp tube 3089 provides auxiliary lighting for the camera 3084. Under the illumination of the lamp tube 3089, workers can view the monitoring screen and determine whether there are weld scars on the pipe to be bent based on surface morphology differences. If the light band is continuous and uniform without abnormal shadows, there are no weld scars on the outside of the pipe to be bent; if a light-dark boundary line appears at the edge or a shadow area exists, there are weld scars on the outside of the pipe to be bent.

[0047] In one alternative embodiment, the platform 1 is provided with a mounting bracket 4 at one end of the fourth slide rail 9. The mounting bracket 4 is provided with a second slide rail 5, the extension direction of which is parallel to the platform surface of the platform 1. The mounting bracket 4 is fixed to the platform 1 as a support structure. The second slide rail 5 facilitates the lateral movement of the movable box 6, facilitating the feeding of the pipe fitting into the second processing mechanism 8 and the elbow assembly 11. The second slide rail 5 is connected to the movable box 6, which has an internal power system to provide power for lateral movement. The movable box 6 also serves as the mounting base for the third slide rail 7 and the elbow assembly 11. The third slide rail 7 is provided on the movable box 6, parallel to the second slide rail 5. The third slide rail 7 is mounted on the movable box 6 to support the second processing mechanism 8, enabling it to move independently in a direction perpendicular to the pipe fitting. The third slide rail 7 is connected to the second processing mechanism 8, which lubricates the pipe fitting before bending and also provides a bending forming mold 810, while also isolating the lubricant and protecting the clamping section.

[0048] In one alternative embodiment, the second processing mechanism 8 includes a fourth sliding plate 801 connected to the third slide rail 7. The fourth sliding plate 801 has a power system installed inside to facilitate the lateral movement of the second processing mechanism 8. A third lifting frame 802 is provided above the fourth sliding plate 801 to adjust the height of the second processing mechanism 8 and ensure its alignment with the pipe fitting. Two corner plates 803 are provided above the third lifting frame 802 in a direction perpendicular to the third slide rail 7. The corner plates 803 serve as mounting platforms to support the motors. Each corner plate 803 is connected to a second motor 804. The output end of each second motor 804 is connected to a fourth push rod 805. The second motor 804 acts as a driving mechanism to extend the fourth push rod 805 to a specific position, and the fourth push rod 805 acts as an actuating mechanism. Each of the fourth push rods 805 is connected to a first horizontal plate 808, which provides a mounting base. One of the first horizontal plates 808 is connected to a mold 810 via a first adjusting rod 809. The mold 810 directly contacts the profile of the pipe fitting and, driven by the corresponding fourth push rod 805, presses the pipe fitting together with the elbow assembly 11 to complete the bending deformation. The other first horizontal plate 808 has a contact assembly 806 and a lubrication assembly 807 connected to its two ends via a second adjusting rod 8062. The lubrication assembly 807 is responsible for uniformly spraying lubricant onto the outer surface of the pipe fitting to reduce friction between the pipe fitting and the mold 810, prevent scratches, and reduce bending force. The contact assembly 806 is used to prevent the lubricant from flowing to and contaminating the mold 810, ensuring a stable clamping without slippage.

[0049] In one alternative embodiment, the second adjusting rod 8062 is connected to the contact assembly 806 via a fixing clip 8063. The contact assembly 806 includes a first fixing ring 8064, and first outer sleeves 8065 are provided on both sides of the first fixing ring 8064. The contact assembly 806 is disposed between the mold 810 and the lubrication assembly 807. The two first outer sleeves 8065, which are made of waterproof material, and the first fixing ring 8064 in the contact assembly 806 provide a large amount of isolation for the lubricant, preventing the mold 810 from contacting the lubricant and causing the clamping section to slip.

[0050] In one alternative embodiment, the first horizontal plate 808 is connected to the lubrication assembly 807 via a fixing clip 8063. The lubrication assembly 807 includes a second fixing ring 8071, which provides a space for the spraying of lubricating oil. Second outer sleeves 8075 are provided on both sides of the second fixing ring 8071 to reduce lubricant leakage to the outside. A through groove 8077 is formed at the bottom of the second fixing ring 8071, and a receiving box 8076 is connected to the through groove 8077. The through groove 8077 and the receiving box 8076 are designed to collect excess lubricant, preventing contamination, and the receiving box 8076 can be manually disassembled and cleaned periodically by workers. The second fixing ring 8071 is externally provided with a connecting pipe 8072, which is connected to an external material box. Lubricating oil is pumped into the connecting pipe 8072 by the pump body. The fixing ring is internally provided with at least one annular pipe 8073, and the connecting pipe 8072 is connected to the annular pipe 8073 via a branch pipe. The annular pipe 8073 is connected to multiple spray nozzles 8074. The annular pipe 8073 and the multiple spray nozzles 8074 can perform a full rotation of lubricating oil spraying on the pipe to be bent, promoting a more even distribution of lubricating oil on the exterior of the pipe to be bent.

[0051] A forming method of the pipe bending forming machine as described above includes the following steps:

[0052] S1. Before using the equipment, adjust the clamping assembly 10 to clamp the pipe to be bent; then turn on the first processing mechanism 3 to perform surface treatment and weld scar detection on the pipe to be bent.

[0053] S2. If there are weld scars on the surface of the pipe to be bent, the transfer component 305 will transfer the pipe to be bent out of the equipment.

[0054] S3. If there are no weld scars on the surface of the pipe to be bent, the clamping assembly 10 transports the pipe to be bent to the second processing mechanism 8, and the lubrication assembly 807 lubricates the pipe to be bent.

[0055] S4. After lubrication, the clamping assembly 10, the contact assembly 806 and the mold 810 work together with the elbow assembly 11 to bend the pipe fitting.

[0056] The present invention provides a pipe bending forming machine and its forming method, the working process of which is as follows: Before using the equipment, the clamping assembly 10 is adjusted to clamp the pipe to be bent. Then, the power system in the first sliding plate 301 and the third sliding plate 306 is turned on, and the relative positions between the first sliding plate 301 and the third sliding plate 306 and the clamping assembly 10 are adjusted. One of the first lifting frames 3053 is turned on. The first lifting frame 3053 drives the first push rod 3054, the arc plate 3055 and the brush head to move upward. At this time, the two arc plates 3055 are on both sides of the pipe to be bent. The two first push rods 3054 are turned on. The two first push rods 3054 drive the two arc plates 3055 to move towards the pipe to be bent until the brush head of the arc plate 3055 contacts the pipe to be bent. At this time, the two arc plates 3055 are at the end of the pipe to be bent away from the clamping assembly 10.

[0057] As the clamping assembly 10 moves the pipe to be bent toward the second processing mechanism 8, the brush head inside the arc plate 3055 rubs against the outside of the pipe to be bent, promoting the removal of impurities from the pipe. Then, the detection assembly 308 performs weld scar detection on the pipe to be bent after the friction treatment.

[0058] During weld spatter detection, the height and lateral position of the second lifting frame 3083 can be adjusted to facilitate the detection of weld spatter locations on the pipe to be bent. The lamps 3089 on both sides can be turned on to illuminate the pipe to be bent from the side. The position of the sliding component 3088 can be adjusted to regulate the distance between the lamps 3089 and the pipe to be bent. Workers can monitor the screen and determine the presence of weld spatter based on surface morphology differences. If the light band is continuous and uniform without abnormal shadows, there are no weld spatters on the outside of the pipe to be bent; if a light-dark boundary line appears at the edge or a shadow area exists, weld spatters are present on the outside of the pipe to be bent. According to processing requirements, workers can activate the corresponding second push rod 3085, which moves a marker pen upwards to contact the pipe to be bent, marking the approximate location of the weld spatter for subsequent processing.

[0059] After the inspection, the arc plate 3055 is in contact with the pneumatic gripper. If there are weld scars on the outer surface of the pipe to be bent, adjust the clamping assembly 10 to the initial position, adjust the first sliding plate 301 to the middle position of the pipe to be bent, adjust the stroke of the other first lifting frame 3053 and the other first push rod 3054, use the two sets of arc plates 3055 to clamp the pipe to be bent, open the pneumatic gripper of the clamping assembly 10 to separate the pneumatic gripper of the clamping assembly 10 from the pipe to be bent, adjust the position of the first sliding plate 301 to move the pipe to be bent away from the pneumatic gripper, then adjust the position of the two first lifting frames 3053 to the initial state, the two first lifting frames 3053 drive the two arc plates 3055 and the pipe to be bent to move downward until the pipe to be bent is below the clamping assembly 10, then adjust the position of the first sliding plate 301 to transport the pipe to be bent out of the stand 1.

[0060] If there are no weld scars on the outer surface of the pipe to be bent, adjust the first push rod 3054 and the first lifting frame 3053 to their initial positions, release the pipe to be bent from the arc plate 3055, and let the clamping assembly 10 move the pipe to be bent into the second processing mechanism 8. The lubrication assembly 807 lubricates the pipe to be bent. After lubrication, the clamping assembly 10, the contact assembly 806, and the mold 810 work together with the elbow assembly 11 to bend the pipe.

[0061] The clamping assembly 10 guides the pipe to be bent through the first outer sleeve 8065, the first fixing ring 8064, and another first outer sleeve 8065 in sequence. During this process, the pipe to be bent comes into contact with both first outer sleeves 8065. Subsequently, the pipe to be bent passes through the second outer sleeve 8075, the second fixing ring 8071, and another second outer sleeve 8075. During this process, the pipe to be bent does not come into contact with the two second outer sleeves 8075. During lubrication, the lubricant in the connecting pipe 8072 enters the branch pipe, then flows from the branch pipe to the two annular pipes 8073, and is then sprayed onto the pipe to be bent by nozzles outside the two annular pipes 8073, performing a complete lubrication cycle on the pipe to be bent.

[0062] Subsequently, the pipe to be bent moves into the elbow assembly 11, and the fourth push rod 805 corresponding to the mold 810 is activated. The fourth push rod 805 drives the first horizontal plate 808, the first adjusting rod 809 and the mold 810 to contact the pipe to be bent, and cooperate with the elbow assembly 11 to complete the pipe bending and forming work.

[0063] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0064] 1. The pipe bending forming machine and forming method provided by the present invention, through integrated design, realizes the whole process from surface cleaning, weld scar detection, lubrication to precise bending. The whole set of equipment significantly improves the automation level of production, processing accuracy and product qualification rate, and reduces mold 810 wear, with significant comprehensive benefits.

[0065] 2. The pipe bending forming machine and its forming method provided by the present invention, by setting a detection component 308, can detect whether there are weld scars on the outside of the pipe to be bent, so as to avoid stress concentration, loss of dimensional accuracy, and abnormal wear of the mold 810 caused by weld scars on the outside of the pipe to be bent. According to the detection results, the bending work can be continued or the pipe to be bent can be removed from the equipment to prevent the pipe to be bent with weld scars from contacting the elbow assembly 11, thereby protecting the mold 810.

[0066] 3. The pipe bending forming machine and its forming method provided by the present invention, by setting up a transfer component 305, can use the brush head inside the arc plate 3055 to clean the outer surface of the pipe to be bent before weld scar detection, thereby removing most of the impurities, reducing the impact of impurities on weld scar detection, and reducing the wear of impurities on the mold. At the same time, for pipes to be bent with weld scars, the transfer component 305 can remove them from under the clamping component 10 to avoid affecting subsequent processes.

[0067] 4. The pipe bending forming machine and forming method provided by the present invention, by setting a lubrication component 807, can perform a circumferential and uniform lubricating oil spraying treatment on the pipe to be bent, which can reduce the friction between the pipe and the mold 810, prevent tearing and reduce bending force.

[0068] 5. The present invention provides a pipe bending forming machine and forming method, by setting a contact component 806 between the mold 810 and the lubrication component 807, the first outer jacket 8065 and the first fixing ring 8064 in the contact component 806, which are made of waterproof material, isolate the lubricant in a large amount, so as to prevent the mold 810 from contacting the lubricant and causing the clamping section to slip.

[0069] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A pipe bending forming machine, characterized in that: The system includes a platform (1), a first slide rail (2) at the bottom of the platform (1), a first processing mechanism (3) connected to the first slide rail (2), the first processing mechanism (3) including a first sliding plate (301) and a third sliding plate (306), the first sliding plate (301) connected to a transfer component (305), and the third sliding plate (306) connected to a detection component (308); a fourth slide rail (9) at the top of the platform (1), the extension direction of the fourth slide rail (9) being parallel to the first slide rail (2), and a clamping component (10) connected to the fourth slide rail (9); and an elbow component (11) connected to the side of the platform (1). The platform (1) has a mounting bracket (4) at one end of the fourth slide rail (9), the mounting bracket (4) has a second slide rail (5), the extension direction of the second slide rail (5) is parallel to the table surface of the platform (1); the second slide rail (5) is connected to a movable box (6), the movable box (6) has a third slide rail (7), the third slide rail (7) is parallel to the second slide rail (5), and the third slide rail (7) is connected to a second processing mechanism (8); The second processing mechanism (8) includes a fourth sliding plate (801) connected to the third slide rail (7), and a third lifting frame (802) is provided above the fourth sliding plate (801); two corner plates (803) are provided above the third lifting frame (802) in a direction perpendicular to the third slide rail (7), and each corner plate (803) is connected to a second motor (804), and the output end of each of the second motors (804) is connected to a fourth push rod (805); each of the fourth push rods (805) is connected to a first horizontal plate (808), one of the first horizontal plates (808) is connected to a mold (810) through a first adjusting rod (809), and the two ends of the other first horizontal plate (808) are respectively connected to a contact component (806) and a lubrication component (807) through a second adjusting rod (8062); The second adjusting rod (8062) is connected to the contact assembly (806) via a fixing clip (8063). The contact assembly (806) includes a first fixing ring (8064), and a first outer sleeve (8065) ​​is provided on both sides of the first fixing ring (8064). The first horizontal plate (808) is connected to the lubrication assembly (807) by a fixing clip (8063); the lubrication assembly (807) includes a second fixing ring (8071), and a second outer sleeve (8075) is provided on both sides of the second fixing ring (8071); a through groove (8077) is provided at the bottom of the second fixing ring (8071), and a receiving box (8076) is connected to the through groove (8077); a connecting pipe (8072) is provided outside the second fixing ring (8071), and at least one annular pipe (8073) is provided inside the fixing ring, the connecting pipe (8072) and the annular pipe (8073) are connected by a branch pipe, and the annular pipe (8073) is connected to multiple nozzles (8074).

2. The pipe bending forming machine as described in claim 1, characterized in that: The first processing mechanism (3) further includes a fifth slide rail (302) disposed on the first sliding plate (301), the extension direction of the fifth slide rail (302) being perpendicular to the first slide rail (2); the fifth slide rail (302) is connected to a second sliding plate (303), the second sliding plate (303) is provided with a first motor (304), the output end of the first motor (304) is connected to the transfer component (305); the third sliding plate (306) is connected to a lifting platform (307), the lifting platform (307) is connected to the detection component (308).

3. The pipe bending forming machine as described in claim 2, characterized in that: The transfer assembly (305) includes a first rotating shaft (3051) connected to the output end of the first motor (304). A connecting frame (3052) is connected to the top of the first rotating shaft (3051). A first lifting frame (3053) is provided at both ends of the connecting frame (3052). An arc-shaped plate (3055) for clamping the pipe to be bent is provided on the first lifting frame (3053). A brush head is provided inside the arc-shaped plate (3055). A first push rod (3054) is provided at both ends of the first lifting frame (3053). When the first push rod (3054) is extended, it can close the arc-shaped plate (3055).

4. The pipe bending forming machine as described in claim 2, characterized in that: The detection component (308) includes a first slide groove (3081) disposed at the bottom of the lifting platform (307), the first slide groove (3081) being parallel to the first slide rail (2); the first slide groove (3081) is connected to at least one slider (3082), a second lifting frame (3083) is connected above the slider (3082), and a camera (3084) is connected above the second lifting frame (3083).

5. The pipe bending forming machine as described in claim 4, characterized in that: The second lifting frame (3083) is also connected to a second push rod (3085); at least one side of the lifting platform (307) is connected to an inclined plate (309), the inclined plate (309) is parallel to the first slide groove (3081); a second slide groove (3086) is opened inside the inclined plate (309), a third push rod (3087) is provided in the second slide groove (3086), the extension direction of the third push rod (3087) is the inclination direction of the inclined plate (309), the telescopic end of the third push rod (3087) is connected to a sliding member (3088), the sliding member (3088) is also connected to a lamp tube (3089), the lamp tube (3089) is used to provide auxiliary lighting for the camera (3084).

6. A forming method of a pipe bending forming machine as described in any one of claims 1-5, characterized in that: Includes the following steps: S1. Before using the equipment, adjust the clamping assembly (10) to clamp the pipe to be bent; then turn on the first processing mechanism (3) to perform surface treatment and weld scar detection on the pipe to be bent. S2. If there are weld scars on the surface of the pipe to be bent, the transfer assembly (305) will transfer the pipe to be bent out of the equipment. S3. If there are no weld scars on the surface of the pipe to be bent, the clamping assembly (10) transports the pipe to be bent to the second processing mechanism (8), and the lubrication assembly (807) lubricates the pipe to be bent. S4. After lubrication, the clamping assembly (10), contact assembly (806) and mold (810) work together with the elbow assembly (11) to bend the pipe fitting.

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