Servo pipe bending device and using method thereof

Abstract

The invention discloses a servo pipe bending device and a using method thereof, and belongs to the technical field of pipe bending devices.The servo pipe bending device comprises a pipeline bending mechanism, a bending auxiliary mechanism is arranged on the pipeline bending mechanism, the pipeline bending mechanism comprises a base, and a driving assembly is arranged on the base; the rotating disc is driven by the driving assembly to rotate, the active bending assembly walks to the radian b of the special-shaped disc to generate extrusion, the pipeline can be smoothly attached, the positioning purpose is achieved, then the active bending assembly walks to the radian c to achieve extrusion pushing, the pipeline is automatically bent through the active bending assembly, and after bending, conveying is continued, the active bending assembly is reset; according to the mode, by converting the position of the active bending assembly, continuous feeding operation can be carried out, in the rotating process of the rotating disc, different procedures of positioning, bending and pipeline dismounting can be completed in sequence, automatic switching of multiple stations is achieved, the machining efficiency is improved, the material taking area is far away from the bending area, and potential safety hazards can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe bending devices, and in particular to a servo pipe bending device and a use method thereof. Background Art

[0002] In the field of pipe processing, pipe bending technology is widely used in industries such as aerospace, petrochemicals, and automobile manufacturing (such as engine pipes and hydraulic system pipes). Its processing accuracy directly affects the system's sealing, fluid resistance, and structural strength. Currently, mainstream pipe bending equipment includes manual pipe bending machines, hydraulic pipe bending machines, and CNC servo pipe bending machines. However, existing technologies still have the following core pain points when facing mass production of pipes:

[0003] Traditional pipe bending machines are mostly single-station designs, requiring the completion of a single cycle of "loading-positioning-bending-unloading" before the next batch of production can begin. Manual loading and unloading accounts for 30%-40% of the time, resulting in insufficient automation and difficulty meeting the needs of modern assembly line production. Furthermore, the bending area of ​​traditional equipment is close to the operating station (usually ≤0.5m), requiring manual labor to participate in loading, positioning, and mold adjustment at close range. This poses safety risks such as pipe splashing and mold pinching during bending.

[0004] Moreover, when high-strength metal tubes (such as stainless steel and aluminum alloy) are bent at room temperature, the inner side of the tube is prone to wrinkling due to pressure and the outer side is prone to cracking due to stretching, resulting in a high defect rate. Traditional processes rely on auxiliary measures such as filling with sand and adding core rods to prevent collapse, but there are problems such as uneven filling and cumbersome cleaning. Post-bending sealing detection mostly uses offline water pressure testing or manual visual inspection, and real-time feedback results cannot be obtained during the production process. If leakage is found, the entire batch needs to be reworked, resulting in a high waste rate. In addition, offline testing requires additional equipment and workstations, which increases workshop space and logistics costs.

[0005] In response to the above problems, the present invention document proposes a servo pipe bending device and a method for using the same. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems that most traditional pipe bending machines are single-station designs, manual loading and unloading accounts for 30%-40% of the time, the degree of automation is insufficient, and it is difficult to match the production needs of modern assembly lines. In addition, the bending area of ​​the traditional equipment is close to the operating station, and there are safety hazards such as pipe splashing and mold pinching during bending; and the traditional process relies on auxiliary measures such as filling sand and adding core rods to prevent collapse, but there are problems such as uneven filling and cumbersome cleaning. The sealing test after bending cannot provide real-time feedback results during the production process, and offline testing requires additional equipment and stations, which increases the workshop space and logistics costs. A servo pipe bending device and its use method are proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A servo pipe bending device comprises a pipe bending mechanism, wherein the pipe bending mechanism is provided with a bending auxiliary mechanism;

[0009] The pipe bending mechanism includes a base, a driving assembly is provided on the base, a turntable is connected above the driving assembly, a plurality of groups of limiting folding wheels are fixedly installed on the turntable, each group of limiting folding wheels has two limiting folding wheels, and the two limiting folding wheels position the pipe, and a plurality of active bending assemblies are provided on the turntable, the active bending assemblies are in contact with the special-shaped disk, and two gear rods are fixedly connected below the special-shaped disk;

[0010] The bending auxiliary mechanism includes a hot air component, the regulating tube of the hot air component is fixedly installed in the middle of the turntable, and a plurality of connecting components are connected to the turntable. The third gear switch of the connecting component is engaged with two gear rods to control the opening and closing of the connecting component. The connecting component is used to connect the pipeline, and an alarm component is provided on the connecting component.

[0011] Preferably, an axle seat is fixedly connected to the base, the top of the axle seat is fixedly connected to the special-shaped disk, and a controller is provided above the axle seat.

[0012] Preferably, the hot air assembly includes a hot air device, which is fixedly mounted on the base. One end of the hot air device is connected to a fixed pipe, which is fixedly mounted on the base. The top of the fixed pipe is connected to an adjusting pipe, and the adjusting pipe is rotatably mounted on the shaft seat and the fixed pipe through two bearings.

[0013] Preferably, the special-shaped disc is provided with three portions a, b and c with different radians, and a, b and c are designed with smooth transitions.

[0014] Preferably, the driving assembly includes a fixed seat, which is fixedly connected to the base, and a motor is fixedly installed on the fixed seat. The output shaft of the motor is fixedly connected to a first gear, one side of the first gear is meshed with a second gear, and the second gear is fixedly installed on a turntable, and an auxiliary wheel is fixedly connected to the bottom of the turntable.

[0015] Preferably, a plurality of ropes are fixedly connected above the turntable, one end of the ropes is fixedly connected to a sealing cover, and the sealing cover seals the other end of the pipeline.

[0016] Preferably, the connecting assembly includes a delivery pipe, one end of the delivery pipe is connected to the regulating pipe, the other end of the regulating pipe is connected to the end cover, a valve is provided on the delivery pipe, one end of the valve is fixedly connected to the third gear, and the part of the delivery pipe extending from the special-shaped disk is a hose.

[0017] Preferably, the active bending assembly includes a hole sleeve, which is fixedly connected to the turntable, and a sliding rod is slidably connected in the hole sleeve. The two ends of the sliding rod are respectively fixedly connected to a roller and a bending wheel, and the roller runs on the special-shaped disk. A first spring is fixedly connected between the roller and the hole sleeve.

[0018] Preferably, the alarm assembly includes a sealing cylinder, one end of which is connected to the end cover, a sealing plug is provided inside the sealing cylinder, and a second spring is fixedly connected between the bottom of the sealing plug and the bottom wall of the sealing cylinder;

[0019] An adjusting sleeve is fixedly mounted on the sealing cylinder, an adjusting rod is arranged in the adjusting sleeve, and the adjusting rod is fixed on the adjusting sleeve by bolts, and an alarm and a switch are fixedly mounted on both ends of the adjusting rod respectively.

[0020] A method for using a servo pipe bending device comprises the following steps:

[0021] S1. When performing pipe bending operations, the pipe is limited on the limiting folding wheel, and the sealing cover and the end cover are respectively connected to the two ends of the pipe. After the connection, the motor drives the first gear to rotate, the first gear and the second gear are transmitted, and the second gear drives the turntable to rotate, so that the active bending component rotates. When the roller is transferred to the arc b of the special-shaped disk, the arc surface squeezes the roller to move, the roller drives the first spring, and the roller drives the slide rod to move, and the slide rod drives the bending wheel to fit on the pipe for limiting;

[0022] S2. When the connecting assembly follows the movement of the turntable, the third gear and the gear rod are driven, which opens the valve. Then, hot air is transported through the hot air device, and the hot air is transported through the fixed pipe, the regulating pipe, and the delivery pipe, and enters the elbow for heating. The air flow also enters the sealing cylinder and drives the second spring to deform through the sealing plug. Then, a certain amount of hot air is filled into the pipe, and the hot air device is turned off.

[0023] S3. When the roller moves to the arc c of the special-shaped disk, the roller continues to apply pressure to drive the slide rod to move, so that the bending wheel applies force to the pipe to perform the bending operation. When the pipe is bent, air leakage occurs, and the second spring drives the sealing plug to reset upward. The sealing plug contacts the switch, and the alarm sounds, thereby detecting the air tightness of the pipeline;

[0024] S4. After bending, the pipe continues to rotate. When the roller moves from the arc c of the special-shaped disk to the arc a of the special-shaped disk, the first spring drives the slide rod and the bending wheel to reset. At the same time, the third gear engages with the other gear rod to close the valve. Then, the sealing cover and the end cover are removed, and the pipe is removed. The pipe bending operation is repeated in this way.

[0025] Compared with the prior art, the present invention provides a servo pipe bending device and a method of using the same, which have the following beneficial effects:

[0026] 1. The servo pipe bending device and its use method drive the turntable to rotate through the driving component, so that the active bending component moves to the arc b of the special-shaped disk to produce extrusion, which can smoothly fit the pipe to achieve the purpose of positioning, and then moves to the arc c to achieve extrusion and advancement, so that the active bending component automatically bends the pipe. After bending, it continues to convey and resets the active bending component to facilitate the removal of the pipe. This method can perform continuous loading operations by changing the position of the active bending component. During the rotation of the turntable, different processes of positioning, bending and removing the pipe can be completed in sequence, achieving automatic switching of multiple stations, improving processing efficiency, and the material taking area is far away from the bending area, which can reduce safety hazards.

[0027] 2. The servo pipe bending device and its use method, after the pipe is discharged, connect the sealing cover and the end cover to the two ends of the pipe to ensure that the two ends of the pipe are well sealed, creating a closed working environment for subsequent processes. Then, when the connecting component rotates with the special-shaped disk, the third gear and the gear rod are driven to open the valve. At this time, the hot air component can pass the hot air into the pipe. As the hot air continues to be poured in, the pipe is gradually filled with hot air. These hot gases are like invisible "inner support brackets", which effectively support the inside of the pipe and prevent unnecessary deformation of the pipe in subsequent operations. At the same time, the hot air also plays another important role. It reduces the yield strength of the pipe material, making the pipe easier to form in subsequent bending operations, greatly improving the convenience and quality of the bending operation. Secondly, the alarm component can detect the airtightness of the pipe bending process in real time, so that defective products can be quickly identified and batch rework can be avoided.

[0028] 3. The servo pipe bending device and its use method drive the turntable to rotate through the driving component, and the turntable drives the active bending component to move to the arc b on the special-shaped disk, so that the active bending component fits the pipe for positioning. Subsequently, the connecting component and the gear rod are driven to keep the connecting component unobstructed. At this time, the hot air component can transport hot air through the connecting component to fill the pipe for support and heat processing. Subsequently, the active bending component moves to the arc c and squeezes and pushes again, so that the pipe bending operation can be performed. During the bending process and after bending, the conveying continues, so that the alarm component detects the air tightness of the pipe in real time. This process can achieve the purpose of pipe positioning, heat processing, bending, air tightness detection and removal. Each link is closely connected and completed in one go, and the entire processing process is not only easy to operate, but also effectively improves the efficiency of the entire processing flow. Secondly, the overall structure is simple and clear, which greatly reduces the complexity and maintenance cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional view of a servo pipe bending device proposed by the present invention;

[0030] Figure 2A three-dimensional view of the connection between the base and the drive assembly of a servo pipe bending device proposed by the present invention;

[0031] Figure 3 A three-dimensional view of a cross section of a hot air component of a servo tube bending device proposed by the present invention;

[0032] Figure 4 A three-dimensional view of the connection between a turntable and an active bending assembly of a servo tube bending device proposed by the present invention;

[0033] Figure 5 A three-dimensional view of a special-shaped disk of a servo tube bending device proposed by the present invention;

[0034] Figure 6 A three-dimensional view of a cross section of a turntable of a servo tube bending device proposed by the present invention;

[0035] Figure 7 A three-dimensional view of a connecting assembly of a servo pipe bending device proposed by the present invention;

[0036] Figure 8 For the present invention Figure 7 A magnified view of point A;

[0037] Figure 9 A three-dimensional view of an active bending component of a servo tube bending device proposed by the present invention;

[0038] Figure 10 For the present invention Figure 9 Magnified view of point B;

[0039] Figure 11 This is a three-dimensional view of the cross-sectional connection between the end cover and the sealing cylinder of a servo pipe bending device proposed by the present invention.

[0040] In the figure: 100, pipe bending mechanism; 101, base; 102, drive assembly; 1021, fixed seat; 1022, first gear; 1023, second gear; 1024, motor; 103, turntable; 104, controller; 105, shaft seat; 106, special-shaped disk; 107, limit folding wheel; 108, active bending assembly; 1081, roller; 1082, first spring; 1083, slide rod; 1084, hole sleeve; 1085, bending wheel; 109, gear rod; 110, auxiliary wheel; 11 1. Rope; 112. Sealing cover; 200. Bending auxiliary mechanism; 201. Hot air assembly; 2011. Hot air equipment; 2012. Fixed pipe; 2013. Adjusting pipe; 202. Connecting assembly; 2021. Delivery pipe; 2022. Third gear; 2023. Valve; 2024. End cover; 203. Alarm assembly; 2031. Sealing cylinder; 2032. Second spring; 2033. Sealing plug; 2034. Adjusting sleeve; 2035. Alarm; 2036. Switch; 2037. Adjusting rod. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0043] Example 1: Reference Figure 1-Figure 7 and Figure 9 A servo pipe bending device includes a pipe bending mechanism 100, and a bending auxiliary mechanism 200 is provided on the pipe bending mechanism 100;

[0044] The pipe bending mechanism 100 includes a base 101, a shaft seat 105 is fixedly connected to the base 101, the top of the shaft seat 105 is fixedly connected to the special-shaped disc 106, and the special-shaped disc 106 is connected through the shaft seat 105, so that the special-shaped disc 106 can be fixed so that the special-shaped disc 106 can smoothly correspond to the roller 1081. A controller 104 is provided above the shaft seat 105, and a driving assembly 102 is provided on the base 101. The driving assembly 102 includes a fixed seat 1021, and the fixed seat 1021 is fixedly connected to the base 101. A motor 1024 is fixedly installed on the fixed seat 1021. The motor 1024 can be fixed by the fixed seat 1021 to ensure the stability of the motor 1024, so that the motor 1024 can smoothly drive the first gear 1022 and the second gear 1022. The gear 1023 is driven to realize power transmission and drive the turntable 103 to rotate, thereby driving the pipeline to perform continuous bending operations. The output shaft of the motor 1024 is fixedly connected to the first gear 1022, and one side of the first gear 1022 is meshed with the second gear 1023. The second gear 1023 is fixedly installed on the turntable 103. The lower part of the turntable 103 is fixedly connected to the auxiliary wheel 110. The auxiliary wheel 110 can support the turntable 103 to maintain the stability of the turntable 103, and the auxiliary wheel 110 rolls on the base 101 to keep the turntable 103 moving smoothly. The turntable 103 is connected to the top of the driving component 102, and multiple groups of limit folding wheels 107 are fixedly installed on the turntable 103. The pipeline can be pre-limited and supported, so as to facilitate the subsequent bending operation. There are two limit folding wheels 107 in each group. The two limit folding wheels 107 position the pipeline, and a plurality of active bending components 108 are provided on the turntable 103. The active bending component 108 includes a hole sleeve 1084, which can guide the slide bar 1083 through the hole sleeve 1084, so that the slide bar 1083 slides smoothly, thereby allowing the bending wheel 1085 to move smoothly. The hole sleeve 1084 is fixedly connected to the turntable 103, and the slide bar 1083 is slidably connected in the hole sleeve 1084. The two ends of the slide bar 1083 are respectively fixedly connected to the roller 1081 and the bending wheel 1085. The roller 1081 moves to the arc b of the special-shaped disk 106, generating extrusion and propulsion, so that the roller 1081 The sliding rod 1083 drives the bending wheel 1085 to fit the pipe. When the roller 1081 moves to the arc c and continues to advance, the bending wheel 1085 applies force to the pipe, so that the pipe can be bent. The roller 1081 moves on the special-shaped disk 106. A first spring 1082 is fixedly connected between the roller 1081 and the hole sleeve 1084. The sliding rod 1083 is reset by the first spring 1082, so that the sliding rod 1083 drives the bending wheel 1085 to separate from the pipe. At this time, it is convenient for the pipe to be taken out. The active bending component 108 is in contact with the special-shaped disk 106. The special-shaped disk 106 is provided with three different arcs a, b and c, and a, b and c are designed with a smooth transition. Two gear rods 109 are fixedly connected to the bottom of the special-shaped disk 106.

[0045] The bending auxiliary mechanism 200 includes a hot air component 201, the regulating tube 2013 of the hot air component 201 is fixedly installed in the middle of the turntable 103, and a plurality of connecting components 202 are connected to the turntable 103. The third gear 2022 of the connecting component 202 switches to engage with the two gear rods 109 to control the opening and closing of the connecting component 202. The connecting component 202 is used to connect the pipeline, and an alarm component 203 is provided on the connecting component 202.

[0046] In this embodiment, the first gear 1022 and the second gear 1023 are driven by the motor 1024, the second gear 1023 drives the turntable 103 to rotate, the turntable 103 drives the active bending component 108 to rotate, so that the roller 1081 moves to the arc b of the special-shaped disk 106 to produce extrusion, the roller 1081 drives the slide bar 1083 and the bending wheel 1085 to move, the bending wheel 1085 can smoothly fit the pipe to achieve the purpose of positioning, and then moves to the arc c to achieve extrusion and advancement, so that the bending wheel 1085 can press the pipe. Automatic bending is performed, and after bending, the conveying is continued so that the active bending component 108 moves to the arc a of the special-shaped disk 106, so that the first spring 1082 drives the bending wheel 1085 to reset, thereby facilitating the removal of the pipe. This method can perform continuous loading operations by converting the position of the active bending component 108. During the rotation of the turntable 103, different processes of positioning, bending and removing the pipe can be completed in sequence, achieving automatic switching of multiple stations, improving processing efficiency, and the material taking area is far away from the bending area, which can reduce safety hazards.

[0047] Example 2: Reference Figure 3 and Figure 7-11 , a servo pipe bending device, including a hot air component 201, the hot air component 201 includes a hot air device 2011, the hot air device 2011 is fixedly installed on the base 101, one end of the hot air device 2011 is connected to a fixed pipe 2012, the fixed pipe 2012 is fixedly installed on the base 101, the upper part of the fixed pipe 2012 is connected with the regulating pipe 2013, and the fixed pipe 2012 and the regulating pipe 2013 are connected through the fixed pipe 2012, so that the hot air can be transported, so that the hot air can smoothly enter the transport pipe 2021, and the regulating pipe 2013 can be rotated through the bearing, so that the turntable 103 can rotate smoothly, and secondly, a pressure sensor can be installed on the fixed pipe 2012 to detect the internal hot air pressure in real time. When the appropriate value is reached, the hot air device 2011 can be stopped. The regulating pipe 2013 is rotatably mounted on the shaft seat 105 and the fixed pipe 2012 through two bearings respectively;

[0048] The connecting assembly 202 includes a delivery pipe 2021, which can guide the hot gas to enter the pipeline smoothly, thereby facilitating the support and heating of the pipeline, thereby reducing the problem of pipeline deformation and facilitating the bending operation of the pipeline. One end of the delivery pipe 2021 is connected to the regulating pipe 2013, and the other end of the regulating pipe 2013 is connected to the end cover 2024. The end cover 2024 can be connected to the pipeline, so that the hot gas can enter the pipeline smoothly. A valve 2023 is provided on the delivery pipe 2021, and one end of the valve 2023 is fixedly connected to the third gear 2022. The third gear 2022 is driven by the gear rod 109, so that the third gear 2022 drives the valve 2023 to open the delivery pipe 20 21, which is convenient for hot gas transportation, and after the third gear 2022 is driven by another gear rod 109, the delivery pipe 2021 can be closed to prevent hot gas from entering, and the part of the delivery pipe 2021 extending from the special-shaped disk 106 is a hose. The delivery pipe 2021 is partially designed as a hose, so that the hose is retractable, thereby facilitating the operation of the end cover 2024. A plurality of ropes 111 are fixedly connected to the top of the turntable 103, and one end of the rope 111 is fixedly connected to a sealing cover 112. The sealing cover 112 is connected by the rope 111, thereby preventing the sealing cover 112 from being easily lost, and the sealing cover 112 can be connected to the other end of the pipeline, thereby maintaining the sealing of the pipeline, and the sealing cover 112 seals the other end of the pipeline;

[0049] The alarm component 203 includes a sealing cylinder 2031, one end of which is connected to the end cover 2024. A sealing plug 2033 is provided inside the sealing cylinder 2031. A second spring 2032 is fixedly connected between the bottom of the sealing plug 2033 and the bottom wall of the sealing cylinder 2031. When a gas leak occurs, the second spring 2032 drives the sealing plug 2033 to reset upward, so that the sealing plug 2033 contacts the switch 2036. At this time, the switch 2036 controls the alarm 2035 to perform a real-time alarm operation, which is convenient for detection. To ensure the air tightness of the pipeline, an adjusting sleeve 2034 is fixedly installed on the sealing cylinder 2031, and an adjusting rod 2037 is provided in the adjusting sleeve 2034. The adjusting rod 2037 slides in the adjusting sleeve 2034 to adjust the position of the switch 2036. After adjustment, the adjusting rod 2037 can be fixed by bolts to keep the position of the switch 2036 fixed. The adjusting rod 2037 is fixed to the adjusting sleeve 2034 by bolts, and an alarm 2035 and a switch 2036 are fixedly installed at both ends of the adjusting rod 2037.

[0050] In this embodiment, after the material is discharged from the pipeline, the sealing cover 112 and the end cover 2024 are connected to the two ends of the pipeline to ensure that the two ends of the pipeline are well sealed, creating a closed working environment for subsequent processes. Then, when the connecting component 202 rotates with the special-shaped disk 106, the third gear 2022 and the gear rod 109 are driven, and the third gear 2022 opens the valve 2023. At this time, the hot air component 201 can pass the hot air into the pipeline. As the hot air continues to be poured in, the pipeline is gradually filled with hot air. These hot gases are like invisible "inner support brackets" that effectively support the inside of the pipeline. The hot air also plays another important role in reducing the yield strength of the pipeline material, making the pipeline easier to form in subsequent bending operations, greatly improving the convenience and quality of the bending operation. Secondly, when the pipeline leaks, the second spring 2032 drives the sealing plug 2033 to reset upward, so that the sealing plug 2033 contacts the switch 2036, and the alarm 2035 sounds an alarm, thereby detecting the airtightness of the pipeline bending process in real time, so that defective products can be quickly identified and batch rework can be avoided.

[0051] Example 3: Reference Figure 2-Figure 4 and Figure 7 A servo pipe bending device includes a pipe bending mechanism 100, which includes a base 101. A driving assembly 102 is provided on the base 101. A turntable 103 is connected above the driving assembly 102. A plurality of groups of limiting folding wheels 107 are fixedly installed on the turntable 103. Each group of limiting folding wheels 107 has two limiting folding wheels 107. The two limiting folding wheels 107 position the pipe, and a plurality of active bending assemblies 108 are provided on the turntable 103. The active bending assemblies 108 are in contact with a special-shaped disk 106. Two gear rods 109 are fixedly connected to the bottom of the special-shaped disk 106.

[0052] The bending auxiliary mechanism 200 includes a hot air component 201, the regulating tube 2013 of the hot air component 201 is fixedly installed in the middle of the turntable 103, and a plurality of connecting components 202 are connected to the turntable 103. The third gear 2022 of the connecting component 202 switches to engage with the two gear rods 109 to control the opening and closing of the connecting component 202. The connecting component 202 is used to connect the pipeline, and an alarm component 203 is provided on the connecting component 202.

[0053] In this embodiment: the turntable 103 is driven to rotate by the driving component 102, and the turntable 103 drives the active bending component 108 to move to the arc b on the special-shaped disk 106, so that the active bending component 108 fits the pipeline for positioning, and then the connecting component 202 is transmitted with the gear rod 109 to keep the connecting component 202 unobstructed. At this time, the hot air component 201 can transport hot air through the connecting component 202 to fill the pipeline for support and heat treatment, and then the active bending component 108 moves to the arc c and squeezes and pushes again, so that the pipeline bending operation can be carried out, and the conveying continues during and after the bending, so that the alarm component 203 detects the air tightness of the pipeline in real time. This process can achieve the purpose of pipeline positioning, heat treatment, bending, air tightness detection and removal. Each link is closely connected and completed in one go, and the entire processing process is not only easy to operate, but also effectively improves the efficiency of the entire processing flow. Secondly, the overall structure is simple and clear, which greatly reduces the complexity and maintenance cost of the equipment.

[0054] A method for using a servo pipe bending device comprises the following steps:

[0055] S1. When performing pipe bending operation, the pipe is limited on the limiting folding wheel 107, and the sealing cover 112 and the end cover 2024 are respectively connected to the two ends of the pipe. After the connection, the first gear 1022 is driven to rotate by the motor 1024, and the first gear 1022 and the second gear 1023 are transmitted. The second gear 1023 drives the turntable 103 to rotate, so that the active bending component 108 rotates. When the roller 1081 is transferred to the arc b of the special-shaped disk 106, the arc surface squeezes the roller 1081 to move, and the roller 1081 drives the first spring 1082, and the roller 1081 drives the slide bar 1083 to move, and the slide bar 1083 drives the bending wheel 1085 to fit on the pipe for limiting;

[0056] S2. When the connecting assembly 202 moves along with the rotating disk 103, the third gear 2022 and the gear rod 109 are driven to open the valve 2023. Then, the hot air is delivered by the hot air device 2011. The hot air is delivered through the fixed pipe 2012, the regulating pipe 2013 and the delivery pipe 2021, and enters the elbow for heating. The airflow also enters the sealing cylinder 2031 and drives the second spring 2032 to deform through the sealing plug 2033. Then, a certain amount of hot air is filled into the pipe, and the hot air device 2011 is closed.

[0057] S3. When the roller 1081 moves to the arc c of the special-shaped disk 106, the roller 1081 continues to apply pressure to drive the slide rod 1083 to move, so that the bending wheel 1085 applies force to the pipe to bend it. When the pipe is bent, air leakage occurs, so that the second spring 2032 drives the sealing plug 2033 to return upward. The sealing plug 2033 contacts the switch 2036, and the alarm 2035 sounds an alarm, thereby detecting the air tightness of the pipe;

[0058] S4. After bending, the pipe continues to rotate. When the roller 1081 moves from the arc c of the special-shaped disk 106 to the arc a of the special-shaped disk 106, the first spring 1082 drives the slide rod 1083 and the bending wheel 1085 to reset. At the same time, the third gear 2022 engages with the other gear rod 109 to close the valve 2023. Then, the sealing cover 112 and the end cover 2024 are removed, and the pipe is removed. The pipe bending operation is repeated in this way.

[0059] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A servo pipe bending device, comprising a pipe bending mechanism (100), characterized in that: The pipe bending mechanism (100) is provided with a bending auxiliary mechanism (200); The pipe bending mechanism (100) comprises a base (101), a driving assembly (102) is provided on the base (101), a turntable (103) is connected above the driving assembly (102), a plurality of groups of position-limiting folding wheels (107) are fixedly mounted on the turntable (103), each group of position-limiting folding wheels (107) has two position-limiting folding wheels (107), and the two position-limiting folding wheels (107) position the pipe, and a plurality of active bending assemblies (108) are provided on the turntable (103), the active bending assemblies (108) are in contact with the special-shaped disc (106), and two gear rods (109) are fixedly connected below the special-shaped disc (106); The bending auxiliary mechanism (200) comprises a hot air component (201), an adjusting tube (2013) of the hot air component (201) is fixedly mounted on the middle of a turntable (103), and a plurality of connecting components (202) are connected to the turntable (103), a third gear (2022) of the connecting component (202) is switched to engage with two gear rods (109) to control the opening and closing of the connecting component (202), the connecting component (202) is used to connect a pipeline, and an alarm component (203) is provided on the connecting component (202).

2. A servo pipe bending device according to claim 1, characterized in that: A shaft seat (105) is fixedly connected to the base (101), the top of the shaft seat (105) is fixedly connected to the special-shaped disk (106), and a controller (104) is arranged above the shaft seat (105).

3. A servo pipe bending device according to claim 2, characterized in that: The hot air assembly (201) comprises a hot air device (2011), the hot air device (2011) is fixedly mounted on a base (101), one end of the hot air device (2011) is connected to a fixed pipe (2012), the fixed pipe (2012) is fixedly mounted on the base (101), the upper portion of the fixed pipe (2012) is connected to an adjustment pipe (2013), and the adjustment pipe (2013) is rotatably mounted on a shaft seat (105) and the fixed pipe (2012) via two bearings.

4. A servo pipe bending device according to claim 3, characterized in that: The special-shaped disc (106) is provided with three portions a, b and c with different radians, and a, b and c are designed with smooth transitions.

5. A servo pipe bending device according to claim 4, characterized in that: The driving assembly (102) comprises a fixing seat (1021), the fixing seat (1021) being fixedly connected to the base (101), a motor (1024) being fixedly mounted on the fixing seat (1021), an output shaft of the motor (1024) being fixedly connected to a first gear (1022), one side of the first gear (1022) being meshedly connected to a second gear (1023), the second gear (1023) being fixedly mounted on a turntable (103), and an auxiliary wheel (110) being fixedly connected below the turntable (103).

6. A servo pipe bending device according to claim 5, characterized in that: A plurality of ropes (111) are fixedly connected above the rotating disk (103), one end of the ropes (111) is fixedly connected to a sealing cover (112), and the sealing cover (112) seals the other end of the pipeline.

7. A servo pipe bending device according to claim 6, characterized in that: The connecting assembly (202) comprises a delivery pipe (2021), one end of the delivery pipe (2021) is connected to the regulating pipe (2013), the other end of the regulating pipe (2013) is connected to an end cap (2024), a valve (2023) is provided on the delivery pipe (2021), one end of the valve (2023) is fixedly connected to a third gear (2022), and a portion of the delivery pipe (2021) extending from the special-shaped disc (106) is a hose.

8. The servo pipe bending device according to claim 7, characterized in that: The active bending assembly (108) includes a hole sleeve (1084), the hole sleeve (1084) is fixedly connected to the rotating disk (103), a sliding rod (1083) is slidably connected in the hole sleeve (1084), and the two ends of the sliding rod (1083) are respectively fixedly connected to a roller (1081) and a bending wheel (1085), the roller (1081) travels on the special-shaped disk (106), and a first spring (1082) is fixedly connected between the roller (1081) and the hole sleeve (1084).

9. The servo pipe bending device according to claim 8, characterized in that: The alarm assembly (203) comprises a sealing cylinder (2031), one end of which is in communication with the end cover (2024); a sealing plug (2033) is provided inside the sealing cylinder (2031); a second spring (2032) is fixedly connected between the bottom of the sealing plug (2033) and the bottom wall of the sealing cylinder (2031); An adjusting sleeve (2034) is fixedly mounted on the sealing cylinder (2031), an adjusting rod (2037) is provided inside the adjusting sleeve (2034), the adjusting rod (2037) is fixed to the adjusting sleeve (2034) by bolts, and an alarm (2035) and a switch (2036) are fixedly mounted at both ends of the adjusting rod (2037), respectively.

10. The method for using the servo pipe bending device according to claim 9, characterized in that: The following steps are involved: S1. When performing a pipe bending operation, the pipe is limited on the limiting folding wheel (107), and the sealing cover (112) and the end cover (2024) are respectively connected to the two ends of the pipe. After the connection, the first gear (1022) is driven to rotate by the motor (1024), the first gear (1022) and the second gear (1023) are driven, and the second gear (1023) drives the rotating disk (103) to rotate, so that the active bending component (108) rotates. When the roller (1081) is transferred to the arc b of the special-shaped disk (106), the arc surface squeezes the roller (1081) to move, the roller (1081) drives the first spring (1082), and the roller (1081) drives the slide bar (1083) to move, and the slide bar (1083) drives the bending wheel (1085) to fit on the pipe for limiting; S2. When the connecting assembly (202) moves along with the rotating disk (103), the third gear (2022) and the gear rod (109) are driven, the valve (2023) is opened, and then the hot air is transported through the hot air device (2011), and the hot air is transported through the fixed pipe (2012), the regulating pipe (2013) and the transport pipe (2021), and enters the bent pipe for heating. The air flow also enters the sealing cylinder (2031) and drives the second spring (2032) to deform through the sealing plug (2033). Then, a certain amount of hot air is filled into the pipe, and the hot air device (2011) is closed. S3. When the roller (1081) moves to the arc c of the special-shaped disc (106), the roller (1081) continues to apply pressure to drive the slide bar (1083) to move, causing the bending wheel (1085) to apply force to the pipe to perform a bending operation. When the pipe is bent, air leakage occurs, causing the second spring (2032) to drive the sealing plug (2033) to reset upward, and the sealing plug (2033) contacts the switch (2036), causing the alarm (2035) to sound an alarm, thereby detecting the air tightness of the pipe; S4. After bending, the pipe is allowed to continue rotating. When the roller (1081) moves from the arc c of the special-shaped disc (106) to the arc a of the special-shaped disc (106), the first spring (1082) drives the slide bar (1083) and the bending wheel (1085) to reset. At the same time, the third gear (2022) engages with the other gear bar (109) to close the valve (2023). Then, the sealing cover (112) and the end cover (2024) are removed, and the pipe is removed. The pipe bending operation is repeated in this way.

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