Winding drum roundness online detection device based on three-dimensional laser scanning

Abstract

The utility model belongs to the technical field of roundness detection, and particularly relates to a winding drum roundness online detection device based on three-dimensional laser scanning, which comprises a detection platform, a laser scanning assembly, two first moving seats, a second moving seat, a third moving seat and a fourth moving seat. A laser scanning assembly; the double-shaft air cylinder is arranged at the top of the other first moving seat; the lifting plate is fixed to the top end of a piston rod of the double-shaft air cylinder; a second moving seat; a support assembly; the pressing mechanism is fixed to the bottom face of the lifting plate and used for pressing the winding drum downwards. A first power mechanism; a second power mechanism; according to the utility model, through the movable supporting assembly and the scanning assembly, the detection of winding drums with different lengths and diameters is realized, the blind area problem of the traditional device is solved, the three-dimensional laser scanning technology is combined with the servo motor to drive the winding drums to rotate, the full-circle data acquisition is ensured, and the detection accuracy and the detection efficiency are obviously improved.

Description

Online Roll Roundness Inspection Device Based on 3D Laser Scanning Technical Field

[0001] This utility model belongs to the field of roundness detection technology, specifically relating to an online roundness detection device for rolls based on three-dimensional laser scanning. Background Technology

[0002] An uncoiler is an industrial machine used to unwind and smoothly transport coiled strip materials (such as metal sheets, paper, films, fabrics, etc.) to subsequent processing equipment. It is widely used in production lines in industries such as metallurgy, papermaking, printing, packaging, and building materials.

[0003] The uncoiler drum is the core component of the uncoiler, responsible for fixing the roll material and ensuring its stable unfolding. It uses an expansion and contraction mechanism (such as a four-sided pyramid wedge type or a hydraulic expansion sleeve type) to tightly fix the inner hole of the roll material, ensuring that the roll material does not slip during rotation.

[0004] The core function of the uncoiler drum is to support and unwind the coiled material (such as metal sheets, steel strips, etc.). Its roundness directly affects the tension distribution when the coil is unwinding. If the roundness of the drum is insufficient (such as excessive ellipticity), the tension of the coil will fluctuate periodically due to changes in the contact radius during the rotation and unwinding process. This may cause wrinkles, uneven stretching, or even breakage on the surface of the coil, which will seriously affect the accuracy and quality of subsequent processing (such as stamping, rolling, coating, etc.). Therefore, it is necessary to regularly check the roundness of the uncoiler drum.

[0005] Three-dimensional laser scanning is a common roundness detection technology. For example, in the prior art, Chinese utility model patent with authorization announcement number CN222258167U discloses "a roundness detection device for aluminum alloy battery cell shells", which includes an operating table. The operating table is provided with a clamping assembly for clamping the aluminum alloy battery cell shell. The clamping assembly includes a clamping plate that can move in the horizontal direction of the operating table. The operating table is provided with a detection assembly for detecting the roundness of the aluminum alloy battery cell shell. The detection assembly includes a laser emitter body and a laser receiver body respectively disposed on both sides of the operating table.

[0006] While existing roundness detection devices, including those mentioned above, can meet general inspection needs, they require rotating the roll to change the detection point when performing roundness detection on rolls with larger diameters to ensure sufficient detection. This makes it difficult for existing detection devices to be applied to rolls with larger diameters, resulting in a large detection blind zone.

[0007] To address the aforementioned issues, this invention proposes an online roll roundness detection device based on three-dimensional laser scanning. Summary of the Invention

[0008] To address the aforementioned problems in the existing technology, this utility model provides an online roll roundness detection device based on three-dimensional laser scanning, which is convenient to use and has high detection accuracy.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an online roll roundness detection device based on three-dimensional laser scanning, comprising a detection platform and a laser scanning assembly, wherein a guide sliding hole is provided on the detection platform, and further comprising:

[0010] Two movable bases are respectively movably mounted on the top sides of the detection platform;

[0011] A laser scanning assembly, wherein the laser scanning assembly is disposed on top of one of the first movable seats;

[0012] A dual-axis cylinder, wherein the dual-axis cylinder is disposed on top of another of the first movable seats;

[0013] A lifting plate, which is fixed to the top of the piston rod of the dual-shaft cylinder;

[0014] The second movable seat is slidably installed in the guide sliding hole;

[0015] A support assembly is provided for supporting the drum and driving the drum to rotate. The support assembly is fixed on the top of both the detection platform and the second movable seat.

[0016] A pressing mechanism, fixed to the bottom surface of the lifting plate, is used to press down the drum;

[0017] A first power mechanism is used to drive the second movable seat to move horizontally.

[0018] The second power mechanism is used to drive the first moving seat to move horizontally.

[0019] As a preferred embodiment of this utility model, the laser scanning component includes:

[0020] An inverted L-shaped fixing bracket fixed to the top of the first movable seat;

[0021] The mounting plate is located directly below the horizontal part of the inverted L-shaped fixing bracket;

[0022] A laser scanner fixed to the bottom surface of the mounting plate;

[0023] A vertical cylinder is fixed to the top surface of the horizontal part of the inverted L-shaped fixing frame, and the piston rod of the vertical cylinder passes through the horizontal part of the inverted L-shaped fixing frame and is fixedly connected to the mounting plate.

[0024] As a preferred embodiment of this utility model, the supporting component includes:

[0025] The support block has a V-shaped support groove on its top, and two symmetrically distributed mounting slots No. 1 are provided in the V-shaped support groove;

[0026] A support roller is rotatably mounted in the first mounting slot;

[0027] A servo motor, fixed to the outer wall of the support block, is used to drive the support roller to rotate;

[0028] The first rubber sleeve is fitted onto the support roller.

[0029] As a preferred embodiment of this utility model, the clamping mechanism includes:

[0030] The clamping block has a V-shaped groove on its bottom surface, and two symmetrically distributed No. 2 mounting slots are provided in the V-shaped groove.

[0031] The clamping roller is rotatably mounted in the second mounting slot.

[0032] The second rubber sleeve is fitted onto the pressure roller.

[0033] As a preferred embodiment of this utility model, the first power mechanism includes:

[0034] A first threaded screw is rotatably installed in the guide slide hole, and the first threaded screw is connected to the second movable seat by thread engagement;

[0035] A first drive motor is fixed to one end of the detection platform and is used to drive the first threaded screw to rotate.

[0036] As a preferred embodiment of the present invention, the first power mechanism further includes:

[0037] Two guide rods are symmetrically fixed in the guide sliding holes and pass through the second movable seat.

[0038] As a preferred embodiment of this utility model, the second power mechanism includes:

[0039] Two fixing plates are fixed at intervals at both ends of the top surface of the detection platform;

[0040] The No. 2 threaded screw is rotatably mounted between the two fixed plates and threadedly connected to the No. 1 movable seat.

[0041] The second drive motor is fixed to the outer wall of the fixed plate and is used to drive the second threaded screw to rotate.

[0042] As a preferred embodiment of the present invention, the second power mechanism further includes:

[0043] Two sets of guide rails, which are fixed to the top surface of the detection platform;

[0044] The guide slider is fixed to the bottom surface of the first movable seat and slides in cooperation with the guide rail.

[0045] Compared with the prior art, the beneficial effects of this utility model are:

[0046] In this invention, movable support components and scanning components enable the detection of rolls of different lengths and diameters, solving the blind spot problem of traditional devices. The three-dimensional laser scanning technology combined with the servo motor driving the roll rotation ensures full-circumference data acquisition, significantly improving the accuracy and efficiency of the detection.

[0047] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0048] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0049] Figure 1 is a schematic diagram of the structure of this utility model;

[0050] Figure 2 is an enlarged schematic diagram of the laser scanning component in Figure 1 of this utility model;

[0051] Figure 3 is a schematic diagram of the isometric structure of the support component in this utility model;

[0052] Figure 4 is a schematic diagram of the isometric structure of the clamping mechanism in this utility model;

[0053] Figure 5 is an enlarged structural schematic diagram of the first power mechanism in Figure 1 of this utility model;

[0054] Figure 6 is an enlarged schematic diagram of the second power mechanism in Figure 1 of this utility model.

[0055] In the diagram: 1. Detection platform; 11. Guide slide hole; 2. First moving seat; 3. Laser scanning assembly; 31. Inverted L-shaped fixing frame; 32. Mounting plate; 33. Laser scanner; 34. Vertical cylinder; 4. Dual-axis cylinder; 5. Lifting plate; 6. Second moving seat; 7. Support assembly; 71. Support block; 711. V-shaped support groove; 712. First mounting groove; 72. Support roller; 73. Servo motor; 74. First rubber sleeve; 8. Pressing mechanism; 81. Pressing block; 811. V-shaped pressing groove; 812. Second mounting groove; 82. Pressing roller; 83. Second rubber sleeve; 9. First power mechanism; 91. First threaded screw; 92. First drive motor; 93. Guide rod; 10. Second power mechanism; 101. Fixing plate; 102. Second threaded screw; 103. Second drive motor; 104. Guide rail; 105. Guide slider. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0057] Please refer to Figures 1-6. This utility model provides the following technical solution: an online detection device for the roundness of a roll based on three-dimensional laser scanning, including a detection platform 1 and a laser scanning component 3. A guide sliding hole 11 is provided on the detection platform 1. The device further includes: two first moving seats 2, a laser scanning component 3, a dual-axis cylinder 4, a lifting plate 5, a second moving seat 6, a support component 7, a pressing mechanism 8, a first power mechanism 9, and a second power mechanism 10.

[0058] Further, as shown in Figure 1, in this embodiment, two No. 1 moving seats 2 are respectively movably arranged on the top sides of the detection platform 1. The laser scanning component 3 is arranged on the top of one of the No. 1 moving seats 2, the dual-axis cylinder 4 is arranged on the top of the other No. 1 moving seat 2, the lifting plate 5 is fixed to the top of the piston rod of the dual-axis cylinder 4, the No. 2 moving seat 6 is slidably installed in the guide sliding hole 11, the support component 7 is used to support the roll and drive the roll to rotate, and the support component 7 is fixed on the top of both the detection platform 1 and the No. 2 moving seat 6. The pressing mechanism 8 is fixed to the bottom surface of the lifting plate 5 and is used to press down the roll. The first power mechanism 9 is used to drive the No. 2 moving seat 6 to move horizontally, and the second power mechanism 10 is used to drive the No. 1 moving seat 2 to move horizontally. With the above scheme, when in use, depending on the length of the roll to be detected, the first power mechanism 9 is started to drive the No. 2 moving seat 6 to move horizontally, and the initial distance between the two sets of support components 7 is adjusted, which is suitable for rolls of different lengths.

[0059] The roll to be tested is placed on the support assembly 7. The roll is supported from both ends by two sets of support assemblies 7 to ensure that the roll is in a horizontal state.

[0060] Start the dual-axis cylinder 4 to retract the piston rod of the dual-axis cylinder 4, and use the piston rod of the dual-axis cylinder 4 to pull down the lifting plate 5, which in turn presses the drum through the pressing mechanism 8 to ensure the stability of the drum and prevent the drum from shaking or deviating.

[0061] Start the second power mechanism 10 to drive the first moving seat 2 to move horizontally, causing the laser scanning component 3 to move horizontally and move the laser scanning component 3 to the starting detection position. Then, turn on the laser scanning component 3 to scan the roll.

[0062] The support assembly 7 is not only used to support the drum, but also has the function of driving the drum to rotate. Activating the drive device of the support assembly 7 will cause the drum to start rotating at a constant speed.

[0063] During the rotation of the drum, the laser scanning component 3 starts to work. The laser scanning component 3 emits a laser beam to the circumference of the drum and receives the reflected laser signal. By analyzing the time difference, angle and other information of the reflected laser signal, the three-dimensional coordinate data of each point on the circumference of the drum can be obtained. Since the drum is constantly rotating, the laser scanning component 3 can continuously collect data of the entire circumference.

[0064] After the detection of the point is completed, the second power mechanism 10 is started to drive the first moving seat 2 to move horizontally, so that the laser scanning component 3 can move horizontally and move to other detection points for detection.

[0065] When the laser scanning assembly 3 moves to the lifting plate 5, in order to avoid the detection blind zone, the dual-axis cylinder 4 is first activated to raise the piston rod of the dual-axis cylinder 4, so that the clamping mechanism 8 moves away from the roll. Then, the second power mechanism 10 is activated to drive the first moving seat 2 to move horizontally, so that the clamping mechanism 8 moves to the part of the roll that has been scanned. Then, the dual-axis cylinder 4 is activated again to lower the piston rod of the dual-axis cylinder 4, and the clamping mechanism 8 is used to clamp the roll. Finally, the laser scanning assembly 3 continues to scan the circumferential surface of the roll.

[0066] After data acquisition and roundness calculation are completed, the laser scanning component 3 is turned off first. Then, the piston rod of the dual-axis cylinder 4 is controlled to rise, so that the clamping mechanism 8 leaves the drum. Then, the tested drum is removed from the support component 7.

[0067] This invention enables the detection of rolls of different lengths and diameters through a movable support component 7 and a laser scanning component 3, solving the blind spot problem of traditional devices. The three-dimensional laser scanning technology, combined with the servo motor 73 driving the roll to rotate, ensures full-circumference data acquisition, significantly improving the accuracy and efficiency of the detection.

[0068] Optionally, as shown in Figures 1 and 2, in this embodiment, the laser scanning assembly 3 includes: an inverted L-shaped fixing frame 31 fixed to the top of the first movable seat 2, a mounting plate 32 located directly below the horizontal part of the inverted L-shaped fixing frame 31, a laser scanner 33 fixed to the bottom surface of the mounting plate 32, and a vertical cylinder 34 fixed to the top surface of the horizontal part of the inverted L-shaped fixing frame 31. The piston rod of the vertical cylinder 34 passes through the horizontal part of the inverted L-shaped fixing frame 31 and is fixedly connected to the mounting plate 32. With the above solution, when in use, before the detection begins, the laser scanning assembly 3 is in the initial state, the piston rod of the vertical cylinder 34 is in the retracted state, and the mounting plate 32 together with the laser scanner 33 fixed to its bottom surface is in a relatively high position to avoid interference when placing the roll.

[0069] Once the roll to be inspected is placed on the support assembly 7 and its position is adjusted and fixed, the second power mechanism 10 is activated to move the laser scanner 33 to the inspection point. At this time, the vertical cylinder 34 is activated to bring the laser scanner 33 close to the roll for scanning.

[0070] After the entire inspection process is completed, the vertical cylinder 34 is activated to move the laser scanner 33 away from the roll, thus avoiding interference when the roll is removed.

[0071] Optionally, as shown in Figures 1 and 3, in this embodiment, the support assembly 7 includes: a support block 71, a support roller 72, a servo motor 73, and a first rubber sleeve 74. The top of the support block 71 is provided with a V-shaped support groove 711, and two symmetrically distributed first mounting grooves 712 are provided in the V-shaped support groove 711. The support roller 72 is rotatably installed in the first mounting groove 712. The servo motor 73 is fixed to the outer wall of the support block 71 and is used to drive the support roller 72 to rotate. The first rubber sleeve 74 is sleeved on the support roller 72. With the above scheme, when using it, before the detection starts, the roll to be detected is placed on the support block 71 of the support assembly 7. Since the top of the support block 71 is provided with a V-shaped support groove 711, the V-shaped structure can provide stable support for the roll, so that the roll can naturally fall on the two symmetrically distributed support rollers 72. Moreover, this V-shaped design can also automatically center the roll to a certain extent, ensuring that the axis of the roll coincides as much as possible with the relevant reference line of the laser scanner 33, creating conditions for accurate detection of roundness in the future.

[0072] The No. 1 rubber sleeve 74 has a large coefficient of friction. When the drum is placed on the support roller 72, the No. 1 rubber sleeve 74 can increase the friction between the drum and the support roller 72, effectively preventing slippage during the rotation of the drum, thereby ensuring that the data collected by the laser scanning component 3 continuously and accurately reflects the actual situation of the drum circumference.

[0073] During testing, the servo motor 73 is started, which drives the support roller 72 to rotate in the first mounting slot 712. Since the drum and the support roller 72 are in close contact and there is friction, the rotation of the support roller 72 will drive the drum to rotate accordingly.

[0074] Optionally, as shown in Figures 1 and 4, in this embodiment, the clamping mechanism 8 includes: a clamping block 81, a clamping roller 82, and a second rubber sleeve 83. The bottom surface of the clamping block 81 is provided with a V-shaped clamping groove 811, and two symmetrically distributed second mounting grooves 812 are provided in the V-shaped clamping groove 811. The clamping roller 82 is rotatably installed in the second mounting groove 812, and the second rubber sleeve 83 is sleeved on the clamping roller 82. With the above scheme, when using the device, before placing the roll to be tested on the support assembly 7, the clamping mechanism 8 is in an initial high position to avoid obstructing the operation of placing the roll. At this time, the piston rod of the dual-axis cylinder 4 is in the extended state, and the lifting plate 5 together with the clamping mechanism 8 fixed on its bottom surface is located above.

[0075] Once the roll is placed on the support assembly 7 and the laser scanning assembly 3 is adjusted to the appropriate detection position, the dual-axis cylinder 4 is activated, causing the piston rod of the dual-axis cylinder 4 to retract downwards, which in turn drives the lifting plate 5 to descend. As the lifting plate 5 descends, the pressing mechanism 8 also moves downwards.

[0076] When the clamping mechanism 8 descends to a certain extent, the clamping roller 82, which is installed in the second mounting groove 812, comes into contact with the surface of the drum. Since the clamping roller 82 is fitted with a second rubber sleeve 83, which has a large friction force, it comes into close contact with the surface of the drum, further increasing the friction between the clamping mechanism 8 and the drum, thereby firmly fixing the drum to the support assembly 7.

[0077] When the servo motor 73 of the support component 7 drives the drum to rotate, the clamping roller 82 is rotatably installed in the second mounting slot 812 and can passively rotate with the rotation of the drum. The clamping mechanism 8 can maintain the clamping force on the drum to prevent the drum from shaking, and will not generate too much resistance to the rotation of the drum, ensuring that the drum can rotate smoothly and at a uniform speed, so that the laser scanning component 3 can accurately collect the three-dimensional coordinate data of the circumferential surface of the drum.

[0078] Optionally, as shown in Figures 1 and 5, in this embodiment, the first power mechanism 9 includes: a first threaded screw 91 and a first drive motor 92. The first threaded screw 91 is rotatably installed in the guide sliding hole 11 and is connected to the second moving seat 6 by threaded engagement. The first drive motor 92 is fixed to one end of the detection platform 1 and is used to drive the first threaded screw 91 to rotate. With the above scheme, when it is necessary to adjust the position of the support component 7 to adapt to drums of different lengths, the first drive motor 92 is started to drive the first threaded screw 91 to rotate. Since the first threaded screw 91 is connected to the second moving seat 6 by threaded engagement, the rotation of the first threaded screw 91 will be converted into the horizontal movement of the second moving seat 6, causing the second moving seat 6 to move horizontally, and at the same time driving the support component 7 fixed on the top of the second moving seat 6 to move, adjusting the distance between the two sets of support components 7.

[0079] Preferably, as shown in Figures 1 and 5, in this embodiment, the first power mechanism 9 further includes two guide rods 93, which are symmetrically fixed in the guide sliding hole 11 and pass through the second movable seat 6. With the above solution, in use, the two guide rods 93 are used to support and guide the second movable seat 6, which further improves the stability of the second movable seat 6.

[0080] Optionally, as shown in Figures 1 and 6, in this embodiment, the second power mechanism 10 includes: two fixed plates 101, a second threaded screw 102, and a second drive motor 103. The two fixed plates 101 are fixed at intervals at both ends of the top surface of the detection platform 1. The second threaded screw 102 is rotatably installed between the two fixed plates 101 and threadedly connected to the first moving seat 2. The second drive motor 103 is fixed to the outer wall of the fixed plate 101 to drive the second threaded screw 102 to rotate. With the above scheme, when it is necessary to make the laser scanning component 3 or the pressing mechanism 8 horizontally displace, the corresponding second drive motor 103 is started to drive the second threaded screw 102 to rotate. Since the second threaded screw 102 is connected to the first moving seat 2 through threaded engagement, the rotation of the second threaded screw 102 will be converted into the horizontal movement of the first moving seat 2, so that the laser scanning component 3 or the pressing mechanism 8 is horizontally displaced.

[0081] Preferably, as shown in Figures 1 and 6, in this embodiment, the second power mechanism 10 further includes: two sets of guide rails 104 and guide sliders 105. The guide rails 104 are fixed to the top surface of the detection platform 1, and the guide sliders 105 are fixed to the bottom surface of the first moving seat 2 and slide in cooperation with the guide rails 104. With the above scheme, in use, the guide rails 104 and guide sliders 105 are used to support and guide the first moving seat 2, which further improves the stability of the first moving seat 2.

[0082] It should be noted that the laser scanner 33, vertical cylinder 34, dual-axis cylinder 4, servo motor 73, drive motor 92, and drive motor 103 are all commercially available conventional devices with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0083] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0084] Components not described in detail in this article are existing technologies.

[0085] The working principle and usage process of this utility model: When using the detection device of this utility model, for the length of the roll to be detected, first start the first drive motor 92 to drive the first threaded screw 91 to rotate, so that the second moving seat 6 moves horizontally and adjusts the initial distance between the two sets of support components 7. It is suitable for rolls of different lengths.

[0086] The roll to be tested is placed on the support assembly 7. The roll is supported from both ends by two sets of support assemblies 7 to ensure that the roll is in a horizontal state.

[0087] Start the dual-axis cylinder 4 to retract the piston rod of the dual-axis cylinder 4, and use the piston rod of the dual-axis cylinder 4 to pull down the lifting plate 5, which in turn presses the drum through the pressing mechanism 8 to ensure the stability of the drum and prevent the drum from shaking or deviating.

[0088] Start the second drive motor 103 to drive the second threaded screw 102 to rotate, drive the first moving seat 2 to move horizontally, and cause the laser scanning component 3 to move horizontally, so that the laser scanning component 3 moves to the starting detection position, and then turn on the laser scanning component 3 to scan the roll.

[0089] The servo motor 73 is started to drive the support roller 72 to rotate in the first mounting slot 712. Since the drum and the support roller 72 are in close contact and there is friction, the rotation of the support roller 72 will drive the drum to rotate accordingly.

[0090] During the rotation of the roll, the laser scanning component 3 starts to work. The laser scanner 33 emits a laser beam toward the circumference of the roll and receives the reflected laser signal. By analyzing the time difference, angle and other information of the reflected laser signal, the three-dimensional coordinate data of each point on the circumference of the roll can be obtained. Since the roll is rotating continuously, the laser scanning component 3 can continuously collect data of the entire circumference.

[0091] After the detection of the point is completed, the second power mechanism 10 is started to drive the first moving seat 2 to move horizontally, so that the laser scanning component 3 moves horizontally and moves the laser scanning component 3 to other detection points for detection;

[0092] When the laser scanner 33 moves to the lifting plate 5, in order to avoid the detection blind zone, the dual-axis cylinder 4 is first activated to raise the piston rod of the dual-axis cylinder 4 and move the clamping mechanism 8 away from the roll. Then, the second power mechanism 10 is activated to drive the first moving seat 2 to move horizontally, so that the clamping mechanism 8 moves to the part of the roll that has been scanned. Then, the dual-axis cylinder 4 is activated again to lower the piston rod of the dual-axis cylinder 4 and use the clamping mechanism 8 to clamp the roll. Finally, the laser scanning assembly 3 continues to scan the circumferential surface of the roll.

[0093] After data acquisition and roundness calculation are completed, the laser scanning component 3 is turned off first, and then the piston rod of the dual-axis cylinder 4 is controlled to rise, so that the clamping mechanism 8 leaves the drum. Then the tested drum is removed from the support component 7.

[0094] This invention enables the detection of rolls of different lengths and diameters through a movable support component 7 and a laser scanning component 3, solving the blind spot problem of traditional devices. The three-dimensional laser scanning technology, combined with the servo motor 73 driving the roll to rotate, ensures full-circumference data acquisition, significantly improving the accuracy and efficiency of the detection.

[0095] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An online roll roundness detection device based on three-dimensional laser scanning, comprising a detection platform (1) and a laser scanning assembly (3), wherein a guide sliding hole (11) is provided on the detection platform (1), characterized in that, Further includes: Two movable seats (2) are respectively movably disposed on the top sides of the detection platform (1); a laser scanning assembly (3) is disposed on the top of one of the movable seats (2); a dual-axis cylinder (4) is disposed on the top of the other movable seat (2); a lifting plate (5) is fixed to the top of the piston rod of the dual-axis cylinder (4); and a second movable seat (6) is slidably installed in the guide hole (11). Inside; support assembly (7), the support assembly (7) is used to support the drum and drive the drum to rotate, and the support assembly (7) is fixed on the top of the detection platform (1) and the second moving seat (6); pressing mechanism (8), the pressing mechanism (8) is fixed on the bottom surface of the lifting plate (5) and is used to press down the drum; first power mechanism (9), the first power mechanism (9) is used to drive the second moving seat (6) to move horizontally; second power mechanism (10), the second power mechanism (10) is used to drive the first moving seat (2) to move horizontally.

2. The online roll roundness detection device based on three-dimensional laser scanning according to claim 1, characterized in that: The laser scanning assembly (3) includes: an inverted L-shaped fixing frame (31) fixed to the top of the first movable seat (2); a mounting plate (32) located directly below the horizontal part of the inverted L-shaped fixing frame (31); a laser scanner (33) fixed to the bottom surface of the mounting plate (32); and a vertical cylinder (34) fixed to the top surface of the horizontal part of the inverted L-shaped fixing frame (31), wherein the piston rod of the vertical cylinder (34) passes through the horizontal part of the inverted L-shaped fixing frame (31) and is fixedly connected to the mounting plate (32).

3. The online roll roundness detection device based on three-dimensional laser scanning according to claim 1, characterized in that: The support assembly (7) includes: a support block (71) with a V-shaped support groove (711) on its top and two symmetrically distributed mounting slots (712) in the V-shaped support groove (711); a support roller (72) which is rotatably mounted in the mounting slot (712); a servo motor (73) which is fixed to the outer wall of the support block (71) and is used to drive the support roller (72) to rotate; and a rubber sleeve (74) which is fitted on the support roller (72).

4. The online roll roundness detection device based on three-dimensional laser scanning according to claim 1, characterized in that: The clamping mechanism (8) includes: a clamping block (81) with a V-shaped groove (811) on its bottom surface and two symmetrically distributed second mounting grooves (812) in the V-shaped groove (811); a clamping roller (82) which is rotatably installed in the second mounting groove (812); and a second rubber sleeve (83) which is sleeved on the clamping roller (82).

5. The online roll roundness detection device based on three-dimensional laser scanning according to claim 1, characterized in that: The first power mechanism (9) includes: a first threaded screw (91), which is rotatably installed in the guide slide hole (11) and connected to the second moving seat (6) by thread engagement; and a first drive motor (92), which is fixed to one end of the detection platform (1) and is used to drive the first threaded screw (91) to rotate.

6. The online roll roundness detection device based on three-dimensional laser scanning according to claim 5, characterized in that: The first power mechanism (9) further includes two guide rods (93), which are symmetrically fixed in the guide sliding hole (11) and pass through the second movable seat (6).

7. The online roll roundness detection device based on three-dimensional laser scanning according to claim 1, characterized in that: The second power mechanism (10) includes: two fixed plates (101), which are fixed at intervals at both ends of the top surface of the detection platform (1); a second threaded screw (102), which is rotatably installed between the two fixed plates (101) and threadedly connected to the first movable seat (2); and a second drive motor (103), which is fixed to the outer wall of the fixed plate (101) for driving the second threaded screw (102) to rotate.

8. The online roll roundness detection device based on three-dimensional laser scanning according to claim 7, characterized in that: The second power mechanism (10) further includes: two sets of guide rails (104), the guide rails (104) being fixed to the top surface of the detection platform (1); and a guide slider (105), the guide slider (105) being fixed to the bottom surface of the first moving seat (2) and slidingly engaging with the guide rails (104).

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