A laser measuring device for measuring a steel pipe
By designing a laser measuring device for steel pipe measurement, and utilizing a combination of sliding grooves, clamping and self-locking components, stable fixing and triaxial displacement of the steel pipe are achieved, solving the problems of low efficiency and insufficient accuracy of traditional measurement methods, and realizing efficient and accurate steel pipe length measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JINAO PRECISION MFG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-16
Smart Images
Figure CN224365507U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel pipe measurement technology, and in particular relates to a laser measuring device for measuring steel pipes. Background Technology
[0002] In the steel metallurgy and pipe manufacturing industries, steel pipes are a fundamental and essential product. Their final length is a crucial dimensional indicator that directly impacts product quality, delivery to specified lengths, subsequent processing, and inventory management.
[0003] Traditional methods for measuring the length of steel pipes (such as mechanical calipers and tape measures) are not only inefficient and labor-intensive, but more importantly, they are difficult to meet the demands of modern production processes that require online, real-time, and high precision. Furthermore, manual measurement is prone to introducing subjective errors.
[0004] Therefore, this utility model provides a laser measuring device for measuring steel pipes to solve the problems existing in the prior art. Utility Model Content
[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a laser measuring device for measuring steel pipes, comprising:
[0006] A measuring platform, on which a groove is formed along the length direction;
[0007] The fixing mechanism includes a fixed base plate, a self-locking component, and a clamping component. The fixed base plate is slidably connected to the slide groove, and the clamping component is fixedly connected to the fixed base plate. The clamping component is rotatably connected to the self-locking component.
[0008] The laser measurement mechanism includes an X-axis displacement component, a Y-axis displacement component, a Z-axis displacement component, and a laser measurement component. The X-axis displacement component is fixedly connected to the measurement platform and is located on one side of the measurement platform. The Z-axis displacement component is fixedly connected to the X-axis displacement component. The Y-axis displacement component is fixedly connected to the Z-axis displacement component. The Y-axis displacement component is fixedly connected to the laser measurement component, and the laser measurement component is located above the clamping component.
[0009] Furthermore, the clamping component includes a clamping plate, a rotating shaft, a rotating shaft seat, and a first connecting member. Four rotating shaft seats are provided, and each rotating shaft seat is fixedly connected to one of the four corners of the fixed base plate. A rotating shaft is rotatably connected between every two rotating shaft seats, and two rotating shafts are rotatably connected to the clamping plate. A plurality of first connecting members are provided, and the plurality of first connecting members are located on both sides of the clamping plate. One end of the first connecting member is fixedly connected to the clamping plate, and the other end of the first connecting member is rotatably connected to the rotating shaft.
[0010] Furthermore, the self-locking component includes a self-locking rod, a second connector, and a third connector. Each of the rotating shaft seats is provided with a second connector on the side away from the clamping plate, and one end of the second connector is fixedly connected to the rotating shaft, while the other end of the second connector is rotatably connected to the third connector. The self-locking rod is fixedly connected between the two third connectors along the length direction of the fixed base plate.
[0011] Furthermore, the clamping plate is also provided with an anti-slip pad, which is fixedly connected to the clamping plate.
[0012] Furthermore, the X-axis displacement component includes an X-axis displacement base plate, an X-axis drive slide rail, an X-axis auxiliary slide rail, an X-axis drive slider, an X-axis auxiliary slider, and an X-axis drive motor. The X-axis displacement base plate is fixedly connected to the measuring platform. The X-axis drive slide rail is fixedly connected to the X-axis displacement base plate. The X-axis drive motor is fixedly connected to one side of the X-axis drive slide rail. The X-axis drive slider is slidably connected to the X-axis drive slide rail. The X-axis drive motor is used to drive the X-axis drive slider to slide. The X-axis auxiliary slide rail is provided on one side of the X-axis drive slide rail and is fixedly connected to the X-axis displacement base plate. An X-axis auxiliary slider is slidably connected to the X-axis auxiliary slide rail. Both the X-axis auxiliary slider and the X-axis drive slider are fixedly connected to the Z-axis displacement component.
[0013] Furthermore, the Z-axis displacement component includes a Z-axis displacement base plate, a Z-axis drive slide rail, a Z-axis drive slider, and a Z-axis drive motor. The bottom surface of the Z-axis displacement base plate is fixedly connected to the X-axis auxiliary slider and the X-axis drive slider. The top surface of the Z-axis displacement base plate is fixedly connected to the Z-axis drive slide rail. The Z-axis drive motor is fixedly connected to one side of the Z-axis drive slide rail. The Z-axis drive slider is slidably connected to the Z-axis drive slide rail. The Z-axis drive motor is used to drive the Z-axis drive slider to slide. The Z-axis drive slider is fixedly connected to the Y-axis displacement component.
[0014] Furthermore, the Y-axis displacement component includes a Y-axis displacement base plate, a Y-axis drive motor, a Y-axis drive slide rail, and a Y-axis drive slider. The Y-axis displacement base plate is fixedly connected to the Z-axis drive slider. The Y-axis drive slide rail is fixedly connected to the Y-axis displacement base plate. The Y-axis drive motor is fixedly connected to one side of the Y-axis drive slide rail. The Y-axis drive slider is slidably connected to the Y-axis drive slide rail. The Y-axis drive slider is fixedly connected to the laser measurement component.
[0015] Furthermore, the laser measurement component includes a laser base plate and a laser measuring element. The laser base plate is fixedly connected to the Y-axis drive slider, and the laser measuring element is fixedly connected to the laser base plate.
[0016] Compared with existing technologies, the beneficial effects of this utility model patent are as follows: By creating a sliding groove along the length of the measuring platform and sliding it with the fixed base plate, a basic and adjustable frame is formed. This allows the fixing mechanism for the steel pipe to no longer be static, but to slide and position freely and continuously within the entire measuring range of the measuring platform according to the actual length of the steel pipe. This means that it can handle the measurement tasks of steel pipes of different specifications and lengths without changing any clamps or making complex mechanical adjustments, achieving "one machine for multiple uses" and expanding the application range of the equipment. The accuracy of the measurement is rooted in the stability and repeatability of the device. The clamping component is responsible for directly contacting and fixing the steel pipe, while its rotational connection with the self-locking component allows the clamping mechanism to adaptively adjust within a certain angle, which can accommodate the possible non-roundness or slight shape deviation of the steel pipe. By adjusting, the clamping force distribution is made more uniform, avoiding deformation or displacement of the steel pipe caused by forced clamping, thus providing a real and stable benchmark for measurement. More importantly, the self-locking component can quickly lock the angle and position after adjustment or clamping the steel pipe, eliminating the slight deformation caused by external force or vibration during the measurement process. Slight loosening or springback fixes the steel pipe in a preset posture, reducing measurement errors caused by workpiece movement. The three-axis displacement components (X, Y, and Z axes) of the laser measuring mechanism are the core of high-precision measurement, giving the laser measuring component the ability to perform precise and controllable movements in three-dimensional space. The X-axis displacement component, as the dominant direction, allows the laser head to scan or position over a wide range along the length of the steel pipe, enabling it to easily reach both ends of the pipe. The Z-axis displacement component controls the vertical height of the laser measuring component, allowing it to adapt to steel pipes of different diameters and always keeping the laser focus... The laser point is adjusted to the optimal measurement distance, and the cross-sectional profile can be scanned at the same time. The Y-axis displacement component provides fine-tuning capability in the direction perpendicular to the steel pipe axis. This is crucial for compensating for installation alignment errors and finding the optimal measurement point on the steel pipe end face (avoiding burrs or defects). The coordinated operation of the three axes allows the operator to guide the laser point to any specific position on the steel pipe end face, rather than passively accepting the random errors that may exist at a fixed measurement point. This ability to actively find the optimal measurement point improves the robustness and reliability of measurements on complex end faces (such as those with bevels or burrs). Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0018] Figure 1 A schematic diagram of the structure of a laser measuring device for measuring steel pipes provided in an embodiment of this utility model;
[0019] Figure 2 Side view of the fixing mechanism in a laser measuring device for measuring steel pipes provided in an embodiment of this utility model;
[0020] Figure 3 A side view of the laser measuring machine in a laser measuring device for measuring steel pipes provided in an embodiment of this utility model.
[0021] In the diagram: 1. Measuring platform; 110. Slide groove; 2. Fixing mechanism; 210. Fixing base plate; 220. Self-locking component; 2201. Self-locking rod; 2202. Second connecting piece; 2203. Third connecting piece; 230. Clamping component; 2301. Clamping plate; 2302. Rotating shaft; 2303. Rotating shaft seat; 2304. First connecting piece; 2305. Anti-slip pad; 3. Laser measuring mechanism; 310. X-axis displacement component; 3101. X-axis displacement base plate; 3102. X-axis drive slide rail; 3103. X-axis auxiliary slide rail 3104, X-axis drive slider; 3105, X-axis drive motor; 3106, X-axis auxiliary slider; 320, Y-axis displacement component; 3201, Y-axis displacement base plate; 3202, Y-axis drive motor; 3203, Y-axis drive slide rail; 3204, Y-axis drive slider; 330, Z-axis displacement component; 3301, Z-axis displacement base plate; 3302, Z-axis drive slide rail; 3303, Z-axis drive slider; 3304, Z-axis drive motor; 4, laser measuring component; 410, laser base plate; 420, laser measuring part. Detailed Implementation
[0022] 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.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] See Figures 1-3 As shown, this embodiment provides a laser measuring device for measuring steel pipes, including: a measuring platform 1, on which a groove 110 is provided along the length direction.
[0025] The fixing mechanism 2 includes a fixing base plate 210, a self-locking component 220 and a clamping component 230. The fixing base plate 210 is slidably connected to the slide groove 110. The clamping component 230 is fixedly connected to the fixing base plate 210 and is rotatably connected to the self-locking component 220.
[0026] The laser measuring mechanism 3 includes an X-axis displacement component 310, a Y-axis displacement component 320, a Z-axis displacement component 330, and a laser measuring component 4. The X-axis displacement component 310 is fixedly connected to the measuring platform 1 and is located on one side of the measuring platform 1. The Z-axis displacement component 330 is fixedly connected to the X-axis displacement component 310. The Y-axis displacement component 320 is fixedly connected to the Z-axis displacement component 330. The Y-axis displacement component 320 is fixedly connected to the laser measuring component 4, which is located above the clamping component 230.
[0027] Specifically, during actual measurement, the steel pipe is placed on the measuring platform 1, and the position of the fixed base plate 210 is adjusted according to the diameter and length of the steel pipe. Multiple fixing mechanisms 2 can be set to fix the steel pipe to the clamping component 230 for clamping. The self-locking component 220 can prevent the clamping component 230 from shifting. The self-locking component 220 can keep the clamping component 230 clamping the steel pipe at all times, preventing the steel pipe from rotating or affecting the measurement accuracy. Then, by controlling the laser measuring mechanism 3, the X-axis displacement component 310, Y-axis displacement component 320 and Z-axis displacement component 330 are used to scan both ends of the steel pipe to determine the length information of the steel pipe.
[0028] Understandably, by sliding the groove 110 along the length of the measuring platform 1 to the fixed base plate 210, a basic and adjustable frame is formed. This allows the fixing mechanism 2 for fixing the steel pipe to no longer be static, but to slide and position freely and continuously within the entire measuring range of the measuring platform 1 according to the actual length of the steel pipe. This means that it can handle the measurement tasks of steel pipes of different specifications and lengths without changing any clamps or making complex mechanical adjustments, achieving "one machine for multiple uses" and expanding the application range of the equipment. The accuracy of the measurement is rooted in the device. The clamping component 230 directly contacts and secures the steel pipe, while its rotational connection with the self-locking component 220 allows the clamping mechanism to adaptively adjust within a certain angle. This accommodates potential out-of-roundness or slight shape deviations in the steel pipe, and the adjustment makes the clamping force distribution more uniform, avoiding deformation or displacement of the steel pipe caused by forced clamping. This provides a true and stable benchmark for measurement. More importantly, the self-locking component 220 can quickly lock the angle and position after adjustment or clamping the steel pipe, eliminating minor loosening or return that may occur during measurement due to external forces or vibrations. The laser measuring mechanism 3 uses a spring to fix the steel pipe in a preset posture, reducing measurement errors caused by workpiece movement. The three-axis displacement components (X, Y, and Z axes) of the laser measuring mechanism 3 are the core of high-precision measurement, giving the laser measuring component 4 the ability to perform precise and controllable movements in three-dimensional space. The X-axis displacement component 310, as the dominant direction, allows the laser head to scan or position over a wide range along the length of the steel pipe, enabling it to easily reach both ends of the pipe. The Z-axis displacement component 330 controls the vertical height of the laser measuring component 4, allowing it to adapt to steel pipes of different diameters and always keeping the laser focus... The laser point is adjusted to the optimal measurement distance, and the cross-sectional profile can be scanned at the same time. The Y-axis displacement component 320 provides fine-tuning capability in the direction perpendicular to the steel pipe axis. This is crucial for compensating for installation alignment errors and finding the optimal measurement point on the steel pipe end face (avoiding burrs or defects). The coordinated operation of the three axes allows the operator to guide the laser point to any specific position on the steel pipe end face, rather than passively accepting the random errors that may exist at a fixed measurement point. This ability to actively find the optimal measurement point improves the robustness and reliability of measurements on complex end faces (such as those with bevels or burrs).
[0029] In some embodiments of this application, the clamping component 230 includes a clamping plate 2301, a rotating shaft 2302, a rotating shaft seat 2303, and a first connecting member 2304. Four rotating shaft seats 2303 are provided, and the rotating shaft seats 2303 are fixedly connected to the four corners of the fixed base plate 210 respectively. A rotating shaft 2302 is rotatably connected between every two rotating shaft seats 2303. The two rotating shafts 2302 are rotatably connected to the clamping plate 2301 respectively. A plurality of first connecting members 2304 are provided, and the plurality of first connecting members 2304 are located on both sides of the clamping plate 2301 respectively. One end of the first connecting member 2304 is fixedly connected to the clamping plate 2301, and the other end of the first connecting member 2304 is rotatably connected to the rotating shaft 2302.
[0030] In some embodiments of this application, the self-locking component 220 includes a self-locking rod 2201, a second connector 2202, and a third connector 2203. Each rotating shaft seat 2303 is provided with a second connector 2202 on the side away from the clamping plate 2301, and one end of the second connector 2202 is fixedly connected to the rotating shaft 2302, and the other end of the second connector 2202 is rotatably connected to the third connector 2203. The self-locking rod 2201 is fixedly connected between the two third connectors 2203 along the length direction of the fixed base plate 210.
[0031] In some embodiments of this application, the clamping plate 2301 is further provided with an anti-slip pad 2305, which is fixedly connected to the clamping plate 2301.
[0032] Specifically, the clamping plate 2301 is first opened, and then the steel pipe is placed on it. The clamping plate 2301 is then attached to the steel pipe. Since the two rotating shafts 2302 do not rotate in the same direction, but only rotate relative to each other, the self-locking rod 2201 can prevent the angle of the clamping plate 2301 from changing.
[0033] Understandably, the unique structure, where two independent rotating shafts 2302 drive the two clamping plates 2301 to rotate relative to each other, transforms the entire clamping mechanism from a rigid, fixed frame into a flexible, deformable "mechanical arm." When the operator places a steel pipe on it and closes the clamping plates 2301, the clamping plates 2301 automatically adjust their contact angle according to the actual outer contour of the steel pipe. This adaptive characteristic ensures that the clamping plates 2301 form maximum contact area with the steel pipe surface, rather than non-ideal point or line contact. The direct benefit is that the applied clamping force is evenly distributed over a large area of the steel pipe surface. This uniform load distribution reduces pressure on the steel pipe surface, avoiding localized deformation or surface indentations that may result from excessively concentrated clamping force, which is crucial for protecting the integrity of precision-machined or specially coated steel pipe surfaces. Simultaneously, the uniform clamping force provides a more stable grip, reducing the possibility of slight slippage of the steel pipe under stress. The self-locking component 220 is directly linked to the rotating shaft 2302 via the second connector 2202, transmitting the rotational motion of the rotating shaft 2302 to the third connector 2203. Finally, a robust self-locking rod 2201 connects the two rotating mechanisms into a single unit. The core function of this self-locking rod 2201 is constraint. It prevents any unexpected, relative reverse rotation of the two rotating shafts 2302 under external disturbances or internal forces on the workpiece. Once the self-locking rod 2201 is in place, the angle of the entire clamping mechanism is fixed, transforming it from a freely adjustable state into a robust, rigid frame. This frame firmly "wraps" and locks the steel pipe in its current position and orientation. This orientation-holding capability resists vibrations or minor external force interference that may occur during measurement, eliminating measurement reference errors introduced by deformation or springback of the clamping mechanism itself. It provides a relatively stable and reliable reference for laser measurement. The operator simply needs to open the clamping plate 2301, place the workpiece, close the clamping plate 2301, and activate the self-locking mechanism. Throughout the process, the fixture automatically adapts to the workpiece's shape, eliminating the need for tedious, experience-based manual adjustments or the application of significant locking force using tools. This intuitive "place-close-lock" operation reduces the operator's workload and technical barriers, making measurement preparation quick and easy, and overall improving measurement efficiency and workflow smoothness.
[0034] In some embodiments of this application, the X-axis displacement component 310 includes an X-axis displacement base plate 3101, an X-axis drive slide rail 3102, an X-axis auxiliary slide rail 3103, an X-axis drive slider 3104, an X-axis auxiliary slider 3106, and an X-axis drive motor 3105. The X-axis displacement base plate 3101 is fixedly connected to the measuring platform 1. The X-axis drive slide rail 3102 is fixedly connected to the X-axis displacement base plate 3101, and the X-axis drive motor 3105 is fixedly connected to one side of the X-axis drive slide rail 3102. An X-axis drive slider 3104 is slidably connected to the axis drive slide rail 3102. An X-axis drive motor 3105 is used to drive the X-axis drive slider 3104 to slide. An X-axis auxiliary slide rail 3103 is provided on one side of the X-axis drive slide rail 3102, and the X-axis auxiliary slide rail 3103 is fixedly connected to the X-axis displacement base plate 3101. An X-axis auxiliary slider is slidably connected to the X-axis auxiliary slide rail 3103. Both the X-axis auxiliary slider 3106 and the X-axis drive slider 3104 are fixedly connected to the Z-axis displacement component 330.
[0035] In some embodiments of this application, the Z-axis displacement component 330 includes a Z-axis displacement base plate 3301, a Z-axis drive slide rail 3302, a Z-axis drive slider 3303, and a Z-axis drive motor 3304. The bottom surface of the Z-axis displacement base plate 3301 is fixedly connected to the X-axis auxiliary slider 3106 and the X-axis drive slider 3104. The top surface of the Z-axis displacement base plate 3301 is fixedly connected to the Z-axis drive slide rail 3302. The Z-axis drive motor 3304 is fixedly connected to one side of the Z-axis drive slide rail 3302. The Z-axis drive slider 3303 is slidably connected to the Z-axis drive slide rail 3302. The Z-axis drive motor 3304 is used to drive the Z-axis drive slider 3303 to slide. The Z-axis drive slider 3303 is fixedly connected to the Y-axis displacement component 320.
[0036] In some embodiments of this application, the Y-axis displacement component 320 includes a Y-axis displacement base plate 3201, a Y-axis drive motor 3202, a Y-axis drive slide rail 3203, and a Y-axis drive slider 3204. The Y-axis displacement base plate 3201 is fixedly connected to the Z-axis drive slider 3303. The Y-axis drive slide rail 3203 is fixedly connected to the Y-axis displacement base plate 3201. The Y-axis drive motor 3202 is fixedly connected to one side of the Y-axis drive slide rail 3203. The Y-axis drive slider 3204 is slidably connected to the Y-axis drive slide rail 3203. The Y-axis drive slider 3204 is fixedly connected to the laser measurement component 4.
[0037] In some embodiments of this application, the laser measuring component 4 includes a laser base plate 410 and a laser measuring element 420. The laser base plate 410 is fixedly connected to the Y-axis drive slider 3204, and the laser measuring element 420 is fixedly connected to the laser base plate 410.
[0038] Understandably, the X-axis displacement component 310, as the dominant axis, provides the laser measuring head with the ability to scan and position over a wide range along the length of the steel pipe, enabling it to cover the entire potential length of the pipe without obstruction and easily reach the key measurement positions at both ends. The Z-axis displacement component 330 controls the vertical lifting and lowering of the measurement height, allowing the laser measuring component 420 to quickly and accurately adjust to the optimal focusing working distance according to the diameter of different steel pipes, ensuring that the quality of the laser spot and the intensity of the measurement signal are always at their best. The Y-axis displacement component 320 provides fine adjustment capabilities perpendicular to the steel pipe axis, allowing the operator to actively compensate for minor deviations that may occur during installation and alignment, or precisely guide the laser point to avoid local defects such as burrs and rust on the end face of the steel pipe, thereby finding the most representative ideal measurement point. The coordinated operation of the three axes achieves full-area coverage positioning of the measurement points, upgrading the traditional passive measurement of fixed points to an intelligent operation that actively seeks the best measurement point. Each axis employs a core drive unit consisting of a drive motor, drive rails, and drive sliders. This structure ensures direct and efficient power transmission while achieving smooth and wobbly linear motion. In the critical X-axis direction, an innovative "one main, one auxiliary" dual-rail design is adopted. The active drive rail provides power and bears the main driving torque, while the auxiliary rail works in parallel, sharing the load and resisting the overturning torque generated by the cantilever of the laser measuring component 4. This symmetrical double-support structure enhances overall rigidity, eliminates slight swaying or deformation that may occur with a single guide rail during long-stroke motion, and ensures that the laser measuring component 4 has extremely strong anti-disturbance capability after being positioned at any location. Its repeatability is fundamentally guaranteed, making it possible to achieve consistency in continuous and batch measurements. The various displacement components are stacked layer by layer, with clear and stable connection interfaces. The drive motor is directly fixed to one side of the drive slide rail in each axis, and directly drives the slider through a built-in lead screw or belt mechanism. This direct connection method shortens the power chain, reduces potential backlash, elastic deformation, and errors in intermediate transmission links, and improves transmission rigidity and response speed. From the fixing of the X-axis displacement base plate 3101 to the measuring platform 1, to the connection of the Z-axis displacement base plate 3301 to the X-axis slider, to the fixed connection of the Y-axis displacement base plate 3201 to the Z-axis slider, and finally the locking of the laser base plate 410 to the Y-axis slider, the entire force flow path is simple, clear, and closed. A top-down, exceptionally stable motion foundation is constructed, minimizing interference from external vibrations and stresses, allowing the laser measuring component 4 to remain stable and vibration-free during high-speed or low-speed movement, thus maintaining measurement accuracy even in dynamic conditions.
[0039] The laser measuring device for steel pipe measurement in the above embodiment forms a basic and adjustable frame by sliding a groove 110 along the length direction on the measuring platform 1 to a fixed base plate 210. This allows the fixing mechanism 2 for fixing the steel pipe to no longer be static, but to slide and position freely and continuously within the entire measuring range of the measuring platform 1 according to the actual length of the steel pipe. This means it can handle the measurement tasks of steel pipes of different specifications and lengths without changing any clamps or making complex mechanical adjustments, achieving "one machine for multiple uses" and expanding the application range of the equipment. The accuracy of the measurement is rooted in the stability and repeatability of the device. The clamping component 230 is responsible for directly contacting and fixing the steel pipe, while its rotational connection with the self-locking component 220 allows the clamping mechanism to adaptively adjust within a certain angle. This accommodates potential out-of-roundness or slight shape deviations of the steel pipe, and the adjustment makes the clamping force distribution more uniform, avoiding deformation or displacement of the steel pipe caused by forced clamping. This provides a true and stable benchmark for the measurement. More importantly, the self-locking component 220 can quickly lock the angle and position after adjustment or clamping the steel pipe, eliminating the possibility of deformation or displacement caused by external forces or vibrations during the measurement process. The slight loosening or springback of the laser measuring mechanism 3 fixes the steel pipe in a preset posture, reducing measurement errors caused by workpiece movement. The three-axis displacement components (X, Y, and Z axes) of the laser measuring mechanism 3 are the core of high-precision measurement, giving the laser measuring component 4 the ability to perform precise and controllable movements in three-dimensional space. The X-axis displacement component 310, as the dominant direction, allows the laser head to scan or position over a wide range along the length of the steel pipe, enabling it to easily reach both ends of the pipe. The Z-axis displacement component 330 controls the vertical height of the laser measuring component 4, allowing it to adapt to steel pipes of different diameters. The laser focus is adjusted to the optimal measurement distance, while the cross-sectional profile is scanned. The Y-axis displacement component 320 provides fine-tuning capability in the direction perpendicular to the steel pipe axis. This is crucial for compensating for installation alignment errors and finding the optimal measurement point on the steel pipe end face (avoiding burrs or defects). The coordinated operation of the three axes allows the operator to guide the laser point to any specific position on the steel pipe end face, rather than passively accepting the random errors that may exist at a fixed measurement point. This ability to actively find the optimal measurement point improves the robustness and reliability of measurements on complex end faces (such as those with bevels or burrs).
[0040] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A laser measuring device for measuring steel pipes, characterized in that, include: A measuring platform (1) has a groove (110) along its length. The fixing mechanism (2) includes a fixing base plate (210), a self-locking component (220) and a clamping component (230). The fixing base plate (210) is slidably connected to the slide groove (110). The clamping component (230) is fixedly connected to the fixing base plate (210). The clamping component (230) is rotatably connected to the self-locking component (220). The laser measurement mechanism (3) includes an X-axis displacement component (310), a Y-axis displacement component (320), a Z-axis displacement component (330), and a laser measurement component (4). The X-axis displacement component (310) is fixedly connected to the measurement platform (1) and is located on one side of the measurement platform (1). The Z-axis displacement component (330) is fixedly connected to the X-axis displacement component (310). The Y-axis displacement component (320) is fixedly connected to the Z-axis displacement component (330). The Y-axis displacement component (320) is fixedly connected to the laser measurement component (4). The laser measurement component (4) is located above the clamping component (230).
2. The laser measuring device for measuring steel pipes according to claim 1, characterized in that, The clamping component (230) includes a clamping plate (2301), a rotating shaft (2302), a rotating shaft seat (2303), and a first connecting member (2304). There are four rotating shaft seats (2303), which are fixedly connected to the four corners of the fixed base plate (210). The rotating shaft (2302) is rotatably connected between every two rotating shaft seats (2303). The two rotating shafts (2302) are rotatably connected to the clamping plate (2301). There are several first connecting members (2304), which are located on both sides of the clamping plate (2301). One end of the first connecting member (2304) is fixedly connected to the clamping plate (2301), and the other end of the first connecting member (2304) is rotatably connected to the rotating shaft (2302).
3. The laser measuring device for measuring steel pipes according to claim 2, characterized in that, The self-locking component (220) includes a self-locking rod (2201), a second connector (2202), and a third connector (2203). Each of the rotating shaft seats (2303) is provided with the second connector (2202) on the side away from the clamping plate (2301). One end of the second connector (2202) is fixedly connected to the rotating shaft (2302), and the other end of the second connector (2202) is rotatably connected to the third connector (2203). The self-locking rod (2201) is fixedly connected between the two third connectors (2203) along the length direction of the fixed base plate (210).
4. The laser measuring device for measuring steel pipes according to claim 3, characterized in that, The clamping plate (2301) is also provided with an anti-slip pad (2305), which is fixedly connected to the clamping plate (2301).
5. The laser measuring device for measuring steel pipes according to claim 1, characterized in that, The X-axis displacement component (310) includes an X-axis displacement base plate (3101), an X-axis drive slide rail (3102), an X-axis auxiliary slide rail (3103), an X-axis drive slider (3104), an X-axis auxiliary slider (3106), and an X-axis drive motor (3105). The X-axis displacement base plate (3101) is fixedly connected to the measuring platform (1). The X-axis drive slide rail (3102) is fixedly connected to the X-axis displacement base plate (3101). The X-axis drive motor (3105) is fixedly connected to one side of the X-axis drive slide rail (3102). 02) The X-axis drive slider (3104) is slidably connected to the upper part. The X-axis drive motor (3105) is used to drive the X-axis drive slider (3104) to slide. The X-axis auxiliary slide rail (3103) is provided on one side of the X-axis drive slide rail (3102). The X-axis auxiliary slide rail (3103) is fixedly connected to the X-axis displacement base plate (3101). The X-axis auxiliary slide rail (3103) is slidably connected to the X-axis auxiliary slide rail (3103). The X-axis auxiliary slider (3106) and the X-axis drive slider (3104) are both fixedly connected to the Z-axis displacement component (330).
6. The laser measuring device for measuring steel pipes according to claim 5, characterized in that, The Z-axis displacement component (330) includes a Z-axis displacement base plate (3301), a Z-axis drive slide rail (3302), a Z-axis drive slider (3303), and a Z-axis drive motor (3304). The bottom surface of the Z-axis displacement base plate (3301) is fixedly connected to the X-axis auxiliary slider (3106) and the X-axis drive slider (3104). The top surface of the Z-axis displacement base plate (3301) is fixedly connected to the Z-axis drive slide rail (3302). The Z-axis drive motor (3304) is fixedly connected to one side of the Z-axis drive slide rail (3302). The Z-axis drive slider (3303) is slidably connected to the Z-axis drive slide rail (3302). The Z-axis drive motor (3304) is used to drive the Z-axis drive slider (3303) to slide. The Z-axis drive slider (3303) is fixedly connected to the Y-axis displacement component (320).
7. The laser measuring device for measuring steel pipes according to claim 6, characterized in that, The Y-axis displacement component (320) includes a Y-axis displacement base plate (3201), a Y-axis drive motor (3202), a Y-axis drive slide rail (3203), and a Y-axis drive slider (3204). The Y-axis displacement base plate (3201) is fixedly connected to the Z-axis drive slider (3303). The Y-axis drive slide rail (3203) is fixedly connected to the Y-axis displacement base plate (3201). The Y-axis drive motor (3202) is fixedly connected to one side of the Y-axis drive slide rail (3203). The Y-axis drive slider (3204) is slidably connected to the Y-axis drive slide rail (3203). The Y-axis drive slider (3204) is fixedly connected to the laser measurement component (4).
8. The laser measuring device for measuring steel pipes according to claim 7, characterized in that, The laser measuring component (4) includes a laser base plate (410) and a laser measuring element (420). The laser base plate (410) is fixedly connected to the Y-axis drive slider (3204), and the laser measuring element (420) is fixedly connected to the laser base plate (410).