A steel pipe laser detection equipment

Abstract

The present invention discloses a steel pipe laser detection device, comprising: a steel pipe positioning device, a laser emitting device and an optical path monitoring device. The steel pipe positioning device has a detection station. The optical path monitoring device and the laser emitting device are respectively arranged on the left and right sides of the detection station. The optical path monitoring device includes an imaging board. The laser emitting device includes a laser emitting unit and a detection drive mechanism. The laser emitting unit is arranged toward the imaging board. The detection drive mechanism is used to drive the laser emitting unit to move along a circular path. The circular path extends in the left and right directions. The steel pipe laser detection equipment of the present invention can directly determine whether there are foreign objects on the inner wall of the steel pipe that block the laser imaging through the imaging path of the laser moving along the inner wall of the steel pipe, thereby realizing the flatness detection of the inner wall of the steel pipe, and can be suitable for the inner wall detection of long-length steel pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe production equipment, and in particular to a steel pipe laser detection device. Background Art

[0002] Steel pipes are a common and frequently used metal product, finding increasing application in industry, agriculture, and various areas of daily life. During steel pipe production, finished steel pipes undergo quality inspections before being put into use. Conventional technology often relies on the naked eye to determine if foreign matter is present on the inner wall of a steel pipe. However, for shorter pipes, the naked eye is often required to inspect the interior of the pipe. However, for longer pipes, the limited field of view and poor lighting conditions make visual inspection impossible, and typically only the outer wall of the pipe is inspected for smoothness. Summary of the Invention

[0003] The object of the present invention is to provide a steel pipe laser detection device to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] A steel pipe laser detection device, comprising: a steel pipe positioning device, a laser emitting device and an optical path monitoring device;

[0006] The steel pipe positioning device has a detection station, and the optical path monitoring device and the laser emitting device are respectively arranged on the left and right sides of the detection station;

[0007] The optical path monitoring device includes an imaging board, and the laser emitting device includes a laser emitting unit and a detection drive mechanism. The laser emitting unit is arranged toward the imaging board, and the detection drive mechanism is used to drive the laser emitting unit to move along a circular path, and the circular path extends in the left and right directions.

[0008] The steel pipe laser detection equipment provided by the present invention has at least the following beneficial effects: the steel pipe to be detected is placed in the detection station and is detected by the laser emitting device and the optical path monitoring device on the left and right sides. The detection drive mechanism drives the laser emitting unit to move along a ring path, and the circular path of the laser can be drawn on the imaging board. When the laser is not blocked, the imaging path of the laser can be fully displayed; when the laser is blocked by foreign matter, the imaging path cannot be continuous. The steel pipe laser detection equipment of the present invention can directly determine whether there are foreign objects on the inner wall of the steel pipe that block the laser imaging through the imaging path of the laser moving along the inner wall of the steel pipe, thereby realizing the flatness detection of the inner wall of the steel pipe, and can be suitable for the inner wall detection of long-length steel pipes.

[0009] As a further improvement of the above technical solution, the steel pipe positioning device includes a steel pipe conveying frame and a material blocking mechanism. The upper end of the steel pipe conveying frame has a conveying surface that is inclined with the front higher and the rear lower. The material blocking mechanism has a material blocking part that can extend from the bottom to the upper side of the conveying surface.

[0010] As a further improvement of the above technical solution, the steel pipe positioning device also includes a trusteeship mechanism, which is arranged below the detection station. The trusteeship mechanism includes a bracket and a trusteeship driving component for driving the bracket to move up and down.

[0011] As a further improvement of the above technical solution, the laser emitting device includes a rotating component, the laser emitting unit is installed on the rotating component, and the detection drive mechanism is transmission-connected to the rotating component and causes the rotating component to rotate around a rotation axis extending left and right.

[0012] As a further improvement of the above technical solution, the detection drive mechanism includes a detection drive motor and a drive shaft, the drive shaft is coaxially fixedly connected to the rotating component, and the output shaft of the detection drive motor is transmission-connected to the drive shaft.

[0013] As a further improvement of the above technical solution, the laser emitting device further includes a variable diameter driving mechanism, which is used to drive the laser emitting unit to move relative to the display board along the radial direction of the driving shaft.

[0014] As a further improvement of the above technical solution, the laser emitting unit has a variable diameter adjustment column extending left and right, the variable diameter drive mechanism includes a variable diameter disk, the variable diameter disk is coaxially arranged with the drive shaft, the variable diameter disk has a variable diameter drive groove extending spirally around the axial direction, and the variable diameter adjustment column is slidably embedded in the variable diameter drive groove.

[0015] As a further improvement of the above technical solution, the variable diameter disk is coaxially rotatably sleeved on the drive shaft, an electromagnetic clutch is coaxially arranged between the drive shaft and the variable diameter disk, and the variable diameter drive mechanism includes a clamping member for clamping the edge of the variable diameter disk.

[0016] As a further improvement of the above technical solution, an encoder is coaxially arranged between the variable diameter disk and the rotating component.

[0017] As a further improvement of the above technical solution, the optical path monitoring device also includes a visual detection system arranged toward the display board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1This is a rear view of an embodiment of the steel pipe laser inspection device provided by the present invention;

[0020] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the steel pipe laser detection equipment provided by the present invention;

[0021] Figure 3 This is a side cross-sectional view of an embodiment of the steel pipe laser inspection device provided by the present invention;

[0022] Figure 4 This is a rear view of an embodiment of the laser emitting device provided by the present invention;

[0023] Figure 5 This is a side exploded schematic diagram of an embodiment of the laser emitting device provided by the present invention;

[0024] Figure 6 This is a three-dimensional exploded schematic diagram of an embodiment of the laser emitting device provided by the present invention.

[0025] In the figure: 100, steel pipe positioning device; 110, steel pipe conveying frame; 120, material blocking mechanism; 121, material blocking member; 122, material blocking driving member; 130, trusteeship mechanism; 131, bracket; 132, trusteeship driving member; 200, laser emitting device; 210, laser emitting unit; 211, variable diameter adjustment column; 220, right frame; 221, sliding seat; 222, sliding driving member; 230, rotating member; 231, laser fixing plate; 232, connecting plate; 233. Connecting column; 240. Detection drive mechanism; 241. Detection drive motor; 242. Drive shaft; 250. Variable diameter disk; 251. Variable diameter drive groove; 252. Avoidance groove; 260. Variable diameter drive mechanism; 261. Electromagnetic clutch; 262. Clamping member; 263. Encoder; 264. Connecting arm; 300. Optical path monitoring device; 310. Display board; 320. Left frame; 330. Visual detection system; 331. Light source; 332. CCD camera. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. 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. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, if there are words such as "several", it means one or more, and "more" means more than two. Greater than, less than, and exceed are understood as not including the number itself, and above, below, and within are understood as including the number itself.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 6 The steel pipe laser detection equipment of the present invention is implemented as follows:

[0031] A steel pipe laser detection device includes: a steel pipe positioning device 100, a laser emitting device 200 and an optical path monitoring device 300.

[0032] The steel pipe positioning device 100 has a detection station. The optical path monitoring device 300 and the laser emitting device 200 are respectively arranged on the left and right sides of the detection station.

[0033] The optical path monitoring device 300 includes an imaging board 310. The laser emitting device 200 includes a laser emitting unit 210 and a detection drive mechanism 240. The laser emitting unit 210 is disposed toward the imaging board 310. The detection drive mechanism 240 is configured to drive the laser emitting unit 210 to move along a circular path.

[0034] During actual use, the steel pipe to be inspected is placed at the inspection station and inspected by the laser emitting device 200 and the optical path monitoring device 300 on the left and right sides. The detection drive mechanism 240 drives the laser emitting unit 210 to move along a circular path, and the circular path of the laser can be drawn on the display board 310. When the laser is not blocked, the imaging path of the laser can be fully displayed; when the laser is blocked by foreign matter, the imaging path cannot be continuous. The steel pipe laser detection equipment of the present invention can directly determine whether there are foreign objects on the inner wall of the steel pipe that block the laser imaging through the imaging path of the laser moving along the inner wall of the steel pipe, thereby realizing the flatness detection of the inner wall of the steel pipe.

[0035] In this embodiment, the steel pipe positioning device 100 includes a steel pipe conveying frame 110 and a material blocking mechanism 120. The upper end of the steel pipe conveying frame 110 has a conveying surface that is inclined with the front higher and the rear lower. The material blocking mechanism 120 has a material blocking portion that can extend from the bottom to the upper side of the conveying surface.

[0036] Specifically, the material blocking mechanism 120 includes a material blocking member 121 and a material blocking driving member 122. The material blocking portion is disposed on the material blocking member 121. The material blocking member 121 is vertically slidably connected to the steel pipe conveyor frame 110. The material blocking driving member 122 includes a material blocking driving end that is transmission-connected to the material blocking member 121 and causes the material blocking member 121 to move vertically relative to the steel pipe conveyor frame 110.

[0037] Referring to the accompanying drawings, the material blocking member 121 is in the shape of a cylinder extending up and down. The material blocking driving member 122 can be a linear driving member such as a cylinder, an electric push rod, a hydraulic push rod or a screw nut driving assembly.

[0038] During actual use, the steel pipe to be inspected rolls backward on the conveying surface under the action of its own weight, and the material-blocking driving component 122 drives the material-blocking part of the material-blocking member 121 to extend upward to the upper side of the conveying surface, restricting the steel pipe to the front side of the material-blocking part, thereby facilitating inspection.

[0039] In this embodiment, to prevent the steel pipe from swaying, the number of the material blocking mechanisms 120 is multiple. The multiple material blocking mechanisms 120 are arranged in a left-right arrangement. At least two of the material blocking mechanisms 120 are respectively arranged on the left and right sides of the steel pipe conveying rack 110.

[0040] Furthermore, the steel pipe positioning device 100 also includes a custodial mechanism 130. The custodial mechanism 130 is located below the inspection station. The custodial mechanism 130 includes a bracket 131 and a custodial drive component 132. The custodial drive component 132 is used to drive the bracket 131 up and down. The custodial drive component 132 can be an upwardly facing linear drive component such as a cylinder, an electric push rod, a hydraulic push rod, or a screw-nut drive assembly.

[0041] After the material blocking mechanism 120 blocks the steel pipe at the inspection station, the hosting driving component 132 mobilizes the bracket 131 to push up, driving the steel pipe to rise, so that the steel pipe is flush with the laser emitting device 200 and the optical path monitoring device 300.

[0042] The upper end of the bracket 131 has a V-shaped bracket. When the bracket 131 is raised, the bracket can be locked onto the front and rear sides of the steel pipe, positioning the steel pipe in the center of the bracket. To ensure stable support of the steel pipe, in this embodiment, multiple bracketing mechanisms 130 are provided. Multiple bracketing mechanisms 130 are arranged in a horizontal direction. At least two bracketing mechanisms 130 are located on the left and right sides of the steel pipe conveyor frame 110.

[0043] The laser emitting device 200 includes a rotating member 230 having a rotation axis extending leftward and rightward. The laser emitting unit 210 is mounted on the rotating member 230. The detection drive mechanism 240 has a detection drive end that is in transmission connection with the rotating member 230 and causes the rotating member 230 to rotate.

[0044] In this embodiment, the detection drive mechanism 240 includes a detection drive motor 241 and a drive shaft 242. The drive shaft 242 is coaxially fixedly connected to the rotating member 230. The output shaft of the detection drive motor 241 is in transmission connection with the drive shaft 242.

[0045] With reference to the accompanying drawings, the detection drive motor 241 is arranged beside the drive shaft 242, and the output shaft of the detection drive motor 241 is parallel to the drive shaft 242. The output shaft of the detection drive motor 241 is synchronously connected to the drive shaft 242 via a timing belt assembly. In other embodiments, the output shaft of the detection drive motor 241 can be coaxially fixedly connected to the drive shaft 242. In other embodiments, other transmission methods such as chain drive, gear drive or worm gear drive can also be used between the output shaft of the detection drive motor 241 and the drive shaft 242.

[0046] In this embodiment, the laser irradiation device further includes a right frame 220 , a sliding seat 221 and a sliding driving member 222 .

[0047] The right frame 220 is arranged on the right side of the steel pipe conveying frame 110. The sliding seat 221 is slidably arranged on the right frame 220 along the left and right directions. The sliding drive component 222 is used to drive the sliding seat 221 to move left and right relative to the right frame 220. The rotating component 230 and the detection drive mechanism 240 are both installed on the sliding seat 221. Specifically, the sliding seat 221 is slidingly connected to the right frame 220 through sliding rails extending left and right, and the sliding drive component 222 can adopt a screw nut drive assembly arranged along the left and right. The drive shaft 242 is rotatably arranged at the upper end of the sliding seat 221. The rotating component 230 is arranged at the left end of the drive shaft 242.

[0048] To ensure effective laser imaging, the rotation speed of the laser emitting unit 210 should not be too fast. To avoid excessively long detection cycles, a plurality of laser emitting units 210 is preferred. Multiple laser emitting units 210 are evenly distributed around the circumference of the rotating member 230, significantly reducing the rotation angle of the rotating member 230 during detection and improving detection efficiency. In this embodiment, there are four laser emitting units 210, and they are evenly distributed.

[0049] To accommodate steel pipes of varying sizes, the laser emitting unit 210 is preferably adjustable along the radial direction of the drive shaft 242. In this embodiment, the laser emitting device 200 further includes a variable diameter drive mechanism 260 for driving the laser emitting unit 210 to move radially relative to the imaging board 310 along the drive shaft 242.

[0050] The variable diameter drive mechanism 260 includes a variable diameter disk 250. The variable diameter disk 250 is coaxially arranged with the drive shaft 242. The laser emitting unit 210 is connected to the rotating member 230 in a radial sliding manner and has a variable diameter adjustment column 211 extending left and right. The variable diameter disk 250 has a plurality of variable diameter driving grooves 251 extending spirally around the axial direction. The variable diameter adjustment columns 211 are slidably embedded in the variable diameter driving grooves 251 in a one-to-one correspondence. When the variable diameter disk 250 rotates relative to the rotating member 230, the variable diameter adjustment column 211 moves along the variable diameter driving grooves 251, thereby achieving radial adjustment to adapt to the detection of steel pipes with different inner diameters.

[0051] In this embodiment, the diameter-changing disk 250 is coaxially rotatably sleeved on the drive shaft 242. An electromagnetic clutch 261 is coaxially arranged between the drive shaft 242 and the diameter-changing disk 250. The diameter-changing drive mechanism 260 includes a clamping member 262 for clamping the edge of the diameter-changing disk 250.

[0052] The clamping member 262 is located below the variable diameter disk 250 and mounted on the sliding seat 221. The clamping member 262 includes a clamping cylinder and two clamping jaws. The two clamping jaws are located on the left and right sides of the lower edge of the variable diameter disk 250, and the clamping cylinder is used to drive the two clamping jaws toward each other or away from each other.

[0053] The electromagnetic clutch 261 is an automatically activated electrical device that uses the principle of electromagnetic induction to connect or disconnect two rotating components in a mechanical transmission system without stopping the active component's rotation. During normal testing, the clamping member 262 releases the variable diameter disk 250, and the electromagnetic clutch 261 securely connects the drive shaft 242 and the variable diameter disk 250, allowing the variable diameter disk 250 to rotate synchronously with the rotating member 230. During the variable diameter adjustment process of the laser emitting unit 210, the electromagnetic clutch 261 releases the variable diameter disk 250, allowing it to rotate with the drive shaft 242, and the clamping member 262 clamps the lower end of the variable diameter disk 250. At this point, the detection drive member drives the rotating member 230 to rotate, causing the laser emitting unit 210 to rotate relative to the variable diameter disk 250, thereby achieving variable diameter adjustment.

[0054] Referring to the accompanying drawings, the rotating component 230 includes: a laser fixing disk 231 and a connecting plate 232. The laser fixing disk 231 and the connecting plate 232 are arranged on the left and right. The laser emitting unit 210 and the drive shaft 242 are connected to the laser fixing disk 231 and the connecting plate 232, respectively. The diameter-changing disk 250 is arranged between the laser fixing disk 231 and the connecting plate 232. The diameter-changing disk 250 has a circumferentially extending avoidance groove 252, and a connecting column 233 is movably arranged in the avoidance groove 252. The left and right ends of the connecting column 233 are fixedly connected to the laser fixing disk 231 and the connecting plate 232, respectively.

[0055] An encoder 263 is disposed between the variable diameter disk 250 and the rotating member 230. In this embodiment, the encoder 263 is coaxially disposed between the laser fixed disk 231 and the variable diameter disk 250. The laser fixed disk 231 has a radially extending connecting arm 264. The encoder 263 comprises a code disk and a code ruler that are coaxially connected and rotatably coupled. The code disk and code ruler are fixedly connected to the connecting arm 264 and the variable diameter disk 250, respectively. The encoder 263 controls the relative rotation angle between the variable diameter disk 250 and the rotating member 230, thereby achieving precise radial adjustment of the laser emitting unit 210.

[0056] The optical path monitoring device 300 also includes a left frame 320 and a visual detection system 330. The left frame 320 is arranged on the left side of the steel pipe conveying frame 110. The imaging board 310 is arranged at the upper end of the left frame 320. The visual detection system 330 is arranged toward the imaging board 310. The visual detection system 330 includes a light source 331 and a CCD camera 332. In this embodiment, the CCD camera 332 is arranged on the left side of the imaging board 310. The imaging board 310 is made of a light-transmitting material. The material of the imaging board 310 can be acrylic, polyetheretherketone, high-strength organic glass, transparent polystyrene, etc. The imaging path of the laser emitting unit 210 can be monitored and recorded by the CCD camera 332, and the imaging type can be automatically determined by the control center to achieve automatic detection.

[0057] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steel pipe laser inspection device, characterized by: include: Steel pipe positioning device, laser emitting device and optical path monitoring device; The steel pipe positioning device has a detection station, and the optical path monitoring device and the laser emitting device are respectively arranged on the left and right sides of the detection station; The optical path monitoring device includes an imaging board, and the laser emitting device includes a laser emitting unit and a detection drive mechanism, wherein the laser emitting unit is arranged toward the imaging board, and the detection drive mechanism is used to drive the laser emitting unit to move along an annular path, and the annular path extends in a left-right direction; The laser emitting device includes a rotating member, the laser emitting unit is mounted on the rotating member, and the detection drive mechanism is in transmission connection with the rotating member and causes the rotating member to rotate around a rotation axis extending leftward and rightward; The detection drive mechanism includes a detection drive motor and a drive shaft, the drive shaft is coaxially fixedly connected to the rotating member, and the output shaft of the detection drive motor is in transmission connection with the drive shaft; The laser emitting device further includes a variable diameter driving mechanism, the variable diameter driving mechanism being used to drive the laser emitting unit to move relative to the imaging plate along the radial direction of the driving shaft; The laser emitting unit has a variable diameter adjustment column extending left and right, and the variable diameter drive mechanism includes a variable diameter disk, which is coaxially arranged with the drive shaft, and has a variable diameter drive groove extending spirally around the axial direction, and the variable diameter adjustment column is slidably embedded in the variable diameter drive groove; The diameter-changing disc is coaxially rotatably sleeved on the drive shaft, an electromagnetic clutch is coaxially arranged between the drive shaft and the diameter-changing disc, and the diameter-changing drive mechanism includes a clamping member for clamping the edge of the diameter-changing disc.

2. The steel pipe laser inspection equipment according to claim 1, characterized in that: The steel pipe positioning device includes a steel pipe conveying frame and a material blocking mechanism. The upper end of the steel pipe conveying frame has a conveying surface that is inclined with the front higher and the rear lower. The material blocking mechanism has a material blocking portion that can extend from the bottom to the upper side of the conveying surface.

3. The steel pipe laser inspection equipment according to claim 2, characterized in that: The steel pipe positioning device further includes a trusteeship mechanism, which is arranged below the detection station and includes a bracket and a trusteeship driving component for driving the bracket to move up and down.

4. The steel pipe laser inspection equipment according to claim 1, characterized in that: An encoder is coaxially arranged between the variable diameter disk and the rotating component.

5. The steel pipe laser inspection equipment according to claim 1, characterized in that: The optical path monitoring device further comprises a visual detection system arranged toward the imaging board.

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