Steel pipe flaw detection device and flaw detection system

Abstract

The invention discloses a steel pipe flaw detection device and a flaw detection system. The steel pipe flaw detection device comprises a storage device, a conveying mechanism and a screening mechanism, the storage device is arranged at one end of the conveying device and used for stacking and pushing the steel pipes. The screening mechanism is connected with the conveying mechanism and comprises an ultrasonic detector, an electric push rod and a controller, and the electric push rod is connected with the conveying mechanism; the controller is used for receiving detection data of the ultrasonic detector and controlling the electric push rod to move, so that the electric push rod drives the conveying mechanism to incline to separate unqualified steel pipes; the controller controls the electric push rod, the servo motor and the ultrasonic detector, when the ultrasonic detector detects a damaged steel pipe and the tail end of the steel pipe passes through the ultrasonic detector, the ultrasonic detector feeds back to the controller, and the controller controls the servo motor to stop rotating and controls the electric push rod to retract at the same time, so that the supporting frame inclines; the whole process does not need manual participation, the detection efficiency is high, and the detection precision is high.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pipe manufacturing and processing, and specifically relates to a steel pipe flaw detection device and a flaw detection system. Background Art

[0002] After the steel pipe is processed, some batches may contain defective products due to different external processing factors. Therefore, the defective products need to be screened and separated. The detection device needs to be used to detect whether there are defects or unevenness in the steel pipe, and provide information such as the size, location, and quantity of the defects to sort out the defective products and improve the production and processing technology. In the existing detection methods, the defective products need to be manually sorted after the detection instrument detects the steel pipe, and the entire flaw detection process may require manual cooperation and participation, resulting in low detection efficiency and high detection costs. Summary of the invention

[0003] The object of the present invention is to provide a steel pipe flaw detection device and a flaw detection system, which connects a screening mechanism with a conveying mechanism, and uses a controller in the screening mechanism to control an electric push rod, a servo motor and an ultrasonic detector. When the ultrasonic detector detects a damaged steel pipe and the end of the steel pipe passes through the ultrasonic detector, the ultrasonic detector feeds back to the controller, and the controller controls the servo motor to stop rotating and controls the electric push rod to retract, so that the support frame is tilted, thereby allowing the damaged steel pipe to slide to one side of the support frame.

[0004] The present invention is achieved through the following technical solutions: A steel pipe flaw detection device comprises a storage device, a conveying mechanism and a screening mechanism; the storage device is arranged at one end of the conveying device, and the storage device is used to stack and push the steel pipes; the screening mechanism is connected to the conveying mechanism, and the screening mechanism comprises an ultrasonic detector, an electric push rod and a controller, the controller is respectively connected to the ultrasonic detector and the electric push rod, and the electric push rod is connected to the conveying mechanism; the controller is used to receive detection data from the ultrasonic detector and control the movement of the electric push rod, so that the electric push rod drives the conveying mechanism to tilt to separate unqualified steel pipes.

[0005] Furthermore, the conveying mechanism includes a fixed seat, a support frame and multiple conveying components, the fixed seat is fixedly connected to the ground, the support frame is arranged on the fixed seat and hinged to the fixed seat; the conveying components are arranged on the support frame and are arranged vertically relative to the side of the support frame.

[0006] Furthermore, a hinged portion is provided on the fixing seat, and the bottom of the supporting frame is rotatably connected to the hinged portion.

[0007] Furthermore, a limiting plate is arranged on the fixing seat at the side of the hinge part, the limiting plate is arranged perpendicular to the fixing seat, and the limiting plate abuts against the support frame to limit the support frame.

[0008] Furthermore, the transmission component includes a servo motor, a rotating shaft and a rotating head. The rotating shaft is rotatably connected to the servo motor through a gear set. The rotating shaft passes through a support frame and is connected to the rotating head. The rotating head abuts against the steel pipe and transmits the steel pipe.

[0009] Furthermore, the diameter of the rotating head at the side close to the support frame is larger than the diameter at the side away from the support frame, and a concave limiting surface is provided on the rotating head, and the steel pipe abuts against the limiting surface.

[0010] Furthermore, a bearing is arranged between the rotating shaft and the supporting frame.

[0011] A steel pipe flaw detection system comprises a storage module, a transmission module and a screening module, wherein the storage module is arranged at one end of the transmission module and is used for stacking and pushing steel pipes; the screening module is connected to the transmission module, and the screening module comprises a driving unit, a detection unit and a control unit, wherein the control unit is respectively connected to the detection unit and the driving unit, and the control unit is used for receiving detection data of the detection unit and controlling the inclination of the driving unit to separate unqualified steel pipes.

[0012] Furthermore, the transmission module includes a fixing unit, a supporting unit and a conveying unit, the supporting unit is connected to the fixing unit, and the conveying unit is arranged on the supporting unit; the driving unit is connected to the supporting unit.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) In the present invention, the screening mechanism is connected to the transmission mechanism, and the controller in the screening mechanism is used to control the electric push rod, the servo motor and the ultrasonic detector. When the ultrasonic detector detects a damaged steel pipe and the end of the steel pipe passes through the ultrasonic detector, the ultrasonic detector feeds back to the controller, and the controller controls the servo motor to stop rotating and controls the electric push rod to retract, so that the support frame tilts, thereby allowing the damaged steel pipe to slide to one side of the support frame. No human intervention is required throughout the process, and the detection efficiency and accuracy are high.

[0014] 2) In the present invention, a transmission assembly is arranged on the support frame, and the transmission assembly includes a servo motor, a rotating shaft and a rotating head. A recessed limiting surface is arranged on the rotating head, and the diameter of the side close to the support frame is larger than the diameter of the side away from the support frame. When the support frame is tilted, the steel pipe will slide down from the side of the rotating head. The inclination angle of the support frame is small, the return speed is fast, and the detection efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the top view of the steel pipe flaw detection device of the present invention.

[0017] Figure 2 It is a schematic diagram of the side structure of the steel pipe flaw detection device of the present invention.

[0018] Figure 3 It is a schematic diagram of the assembly structure of the fixing seat and the supporting frame in the steel pipe flaw detection device of the present invention.

[0019] Among them: 1-fixed seat, 11-limiting plate, 12-hinge part, 2-support frame, 3-electric push rod, 4-servo motor, 5-rotating shaft, 6-rotating head, 7-ultrasonic detector, 8-storage device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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, not all of the embodiments.

[0021] Embodiment 1: A steel pipe flaw detection device, such as Figure 1 , Figure 2 and Figure 3As shown, it includes a storage device 8, a conveying mechanism and a screening mechanism; the storage device 8 is arranged at one end of the conveying device, and the storage device 8 is used to stack and push the steel pipes. The processed steel pipes are regularly stacked in the storage device 8. The storage device 8 transports the steel pipes to the conveying device, and the conveying device can continue to add and transport the steel pipes until the detection is completed; the screening mechanism is connected to the conveying mechanism, and the screening mechanism includes an ultrasonic detector 7, an electric push rod 3 and a controller. The controller is respectively connected to the ultrasonic detector 7 and the electric push rod 3, and the electric push rod 3 is connected to the conveying mechanism; the ultrasonic detector 7 is arranged at the bottom of the conveying device and is located at one end of the storage device 8. When the steel pipe passes above the ultrasonic detector 7, the ultrasonic detector 7 detects the steel pipe, and the detection result will be sent to the controller. If there is a defect, when the end of the steel pipe passes through the ultrasonic detector, the controller sends a retraction command to the electric push rod 3, and the retraction of the electric push rod 3 drives the conveying mechanism to tilt, so that the steel pipe slides to the side of the conveying mechanism. If it is detected that the steel pipe has no defects, the steel pipe continues to move forward and is sent from the conveying mechanism. The end of the conveying mechanism slides down, thereby distinguishing defective steel pipes from high-quality steel pipes; the conveying mechanism includes a fixed seat 1, a support frame 2 and a plurality of conveying components, the fixed seat 1 is fixedly connected to the ground, the support frame 2 is arranged on the fixed seat 1 and is rotatably connected to the fixed seat 1, a plurality of conveying components are arranged at intervals on the support frame 2 and are arranged vertically relative to the side of the support frame 2, one end of the electric push rod 3 is connected to the ground, and the other end is connected to the support frame 2, and electric push rods 3 are arranged at both ends of the front and rear of the support frame 2, which has ensured that the support frame 2 is tilted and returned to the center smoothly as a whole; a hinge 12 is arranged on the fixed seat 1, and the bottom of the support frame 2 is rotatably connected to the hinge 12; a limit plate 11 is arranged on the side of the hinge 12 on the fixed seat 1, and the limit plate 11 is arranged on one side of the fixed seat 1, and the limit plate 11 is arranged vertically with the fixed seat 1, when the support frame 2 is kept vertical to the top of the fixed seat 1, the support frame 2 abuts against the limit plate 11, and at the same time, the bottom of the support frame 2 is arranged at an arc angle at the position of the limit plate 11 to avoid friction or collision with the limit plate 11 when it rotates.

[0022] Embodiment 2: On the basis of the above-mentioned embodiments, the present embodiment further defines a transmission component, which includes a servo motor 4, a rotating shaft 5 and a rotating head 6. The servo motor 4 is fixedly arranged on the side of the support frame 2. The rotating shaft 5 is rotatably connected to the servo motor 4 through a gear set. The rotating shaft 5 passes through the support frame 2 and is connected to the rotating head 6. A bearing is arranged between the rotating shaft 5 and the support frame 2 so that the rotating shaft 5 can rotate smoothly. The rotating head 6 abuts against the steel pipe and transmits the steel pipe. The multiple rotating heads 6 are on the same axis, and the diameter of the rotating head 6 on the side close to the support frame 2 is larger than the diameter on the side away from the support frame 2. A recessed limiting surface is arranged on the rotating head 6. The steel pipe is in contact with the limit surface, which is used to receive and transport the steel pipe. When the support frame 2 is tilted, the steel pipe will slide down from the side of the rotating head 6. The tilt angle of the support frame 2 is small, the return speed is fast, and the detection efficiency is high. At the same time, multiple servo motors 4 are connected to the controller. When the end of the steel pipe passes through the ultrasonic detector 7, if the data fed back by the ultrasonic detector 7 shows that the steel pipe has defects, the controller sends a stop command to the servo motor 4 to stop the steel pipe on the rotating head 6, and then sends a retraction command to the electric push rod 3. The electric push rod 3 retracts to tilt the support frame 2, and the defective steel pipe slides down from the side of the rotating head 6 to the side of the support frame 2. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0023] Embodiment 3: A steel pipe flaw detection system includes a storage module, a transmission module and a screening module. The storage module is arranged at one end of the transmission module, and the storage module is used to stack and push the steel pipes; the screening module is connected to the transmission module, and the screening module includes a driving unit, a detection unit and a control unit. The control unit is respectively connected to the detection unit and the driving unit, and the control unit is used to receive detection data of the detection unit and control the driving unit to tilt to separate unqualified steel pipes; the detection unit is arranged at the end of the storage module and is located below the transmission module, and the transmission module includes a fixing unit, a supporting unit and a conveying unit, and the supporting unit is connected to the fixing unit, and the driving unit is connected to the supporting unit. At the same time, The control unit is connected to the conveying unit; the conveying unit is arranged on the supporting unit, and the steel pipe is conveyed by the conveying unit so that it passes through the detection unit to detect whether the steel pipe has defects, and the control unit receives the detection data transmitted by the detection unit. If the data shows that the steel pipe has defects, when the end of the steel pipe passes through the detection unit, the control unit first sends a stop command to the conveying unit, at which time the steel pipe stays on the conveying unit, and then the control unit sends a motion command to the driving unit, and the driving unit pulls the supporting unit to tilt it, causing the steel pipe to slide off the supporting conveying unit. If the steel pipe has no defects, the steel pipe slides off from one end of the motion unit, thereby realizing automatic sorting of the steel pipe.

[0024] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A steel pipe flaw detection device, characterized in that: It includes a storage device, a conveying mechanism and a screening mechanism; the storage device is arranged at one end of the conveying device, and the storage device is used to stack and push steel pipes; the screening mechanism is connected to the conveying mechanism, and the screening mechanism includes an ultrasonic detector, an electric push rod and a controller, the controller is respectively connected to the ultrasonic detector and the electric push rod, and the electric push rod is connected to the conveying mechanism; the controller is used to receive detection data from the ultrasonic detector and control the movement of the electric push rod, so that the electric push rod drives the conveying mechanism to tilt to separate unqualified steel pipes.

2. The steel pipe flaw detection device according to claim 1, characterized in that: The conveying mechanism includes a fixed seat, a support frame and a plurality of conveying components. The fixed seat is fixedly connected to the ground, and the support frame is arranged on the fixed seat and hinged to the fixed seat; the conveying components are arranged on the support frame and are arranged vertically relative to the side of the support frame.

3. The steel pipe flaw detection device according to claim 2, characterized in that: The fixing seat is provided with a hinged portion, and the bottom of the support frame is rotatably connected to the hinged portion.

4. The steel pipe flaw detection device according to claim 3, characterized in that: A limiting plate is arranged on the fixing seat at the side of the hinge part, the limiting plate is arranged perpendicular to the fixing seat, and the limiting plate abuts against the supporting frame to limit the supporting frame.

5. The steel pipe flaw detection device according to claim 2, characterized in that: The transmission component includes a servo motor, a rotating shaft and a rotating head. The rotating shaft is rotatably connected to the servo motor through a gear set. The rotating shaft passes through a supporting frame and is connected to the rotating head. The rotating head abuts against the steel pipe and transmits the steel pipe.

6. The steel pipe flaw detection device according to claim 5, characterized in that: The diameter of the rotating head at the side close to the support frame is larger than the diameter at the side away from the support frame. A concave limiting surface is arranged on the rotating head, and the steel pipe abuts against the limiting surface.

7. The steel pipe flaw detection device according to claim 5, characterized in that: A bearing is arranged between the rotating shaft and the supporting frame.

8. A steel pipe flaw detection system, characterized in that: It includes a storage module, a conveying module and a screening module. The storage module is arranged at one end of the conveying module, and the storage module is used for stacking and pushing steel pipes; the screening module is connected to the conveying module, and the screening module includes a driving unit, a detection unit and a control unit. The control unit is respectively connected to the detection unit and the driving unit, and the control unit is used to receive the detection data of the detection unit and control the driving unit to tilt so as to separate unqualified steel pipes.

9. The steel pipe flaw detection system according to claim 8, characterized in that: The transmission module comprises a fixing unit, a supporting unit and a conveying unit, wherein the supporting unit is connected to the fixing unit, and the conveying unit is arranged on the supporting unit; and the driving unit is connected to the supporting unit.

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