Laser measuring device based on pipe fitting production
By incorporating a nitrogen chamber design and mechanical structure into the laser measurement device, the problem of decreased measurement accuracy caused by dust interference has been solved, achieving high-precision, stable, and convenient pipe diameter measurement.
Patent Information
- Application Number
- CN202511865296.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-01-16
AI Technical Summary
Existing laser measuring devices are susceptible to dust interference in pipe production, leading to decreased measurement accuracy. Furthermore, traditional protective measures limit the range of motion of the measuring components and increase system complexity and maintenance costs.
The design employs a laser measurement component combined with a nitrogen chamber. The nitrogen-driven mechanical structure enables efficient clamping, fixing, and rotation adjustment of the pipe fittings. The flow of nitrogen gas drives the pipe fittings to rotate and perform measurements, ensuring high accuracy and stability.
It achieves high-precision and high-stability measurement of pipe diameter, avoids dust interference, improves measurement accuracy and convenience, and reduces the risk of oxidation and chemical corrosion.
Smart Images
Figure CN121346673A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of optical inspection technology, and specifically relates to a laser measurement device based on pipe fitting production. Background Technology
[0002] In the field of pipe fitting manufacturing, accurately measuring the physical dimensions of pipe fittings, such as cross-sectional diameter and length, is a key step in ensuring product quality. Traditional measurement methods mainly rely on contact measuring tools such as mechanical calipers and micrometers, or two-dimensional measurement based on image processing. Contact measurement is prone to scratching the surface of pipes, especially affecting precision or coated pipe fittings. Manual operation is inefficient and subject to subjective errors. With the development of the times, laser measurement is gradually replacing traditional measurement methods. However, in the existing laser measurement process for pipe diameter, the cylindrical curved surface of the pipe can easily cause unexpected reflection or scattering of the laser beam, which affects the accuracy of the sensor's received signal and thus reduces the accuracy of the cross-sectional diameter measurement. Furthermore, the environment in pipe fitting production workshops is usually quite harsh, with metal dust, cutting fluid mist, and other suspended particulate matter commonly present in the air. These floating dust particles seriously affect infrared / laser measurements that rely on clear and stable optical paths. Dust particles directly block or scatter the measurement laser beam, resulting in weakened signal strength at the receiving end, decreased signal-to-noise ratio, and even signal loss, which seriously affects the reliability and stability of the measurement. The suspended particles themselves may reflect or refract the laser, forming non-target reflection signals, interfering with the sensor's identification and positioning of the reflected light from the actual pipe fitting surface, and introducing significant measurement deviations. Meanwhile, dust accumulation on the surfaces of key optical components such as laser emitters, receiving lenses, reflectors, and refractive plates will reduce their light transmittance and change their optical properties, leading to a continuous deterioration in measurement accuracy over time. This necessitates frequent shutdowns for cleaning and maintenance, which affects production efficiency. While some existing technologies attempt to add protective covers or install localized air curtains to optical measurement equipment to deal with dust: While protective covers can provide some isolation, they severely limit the range of motion of the measuring components and the ease of loading and unloading of the fittings, making it difficult to meet the fast and flexible measurement needs of automated production lines. Simple air curtains often suffer from problems such as high air consumption, insufficient airflow stability and direction control, and poor sealing. They are difficult to provide a continuous, uniform, and effective dust barrier in complex, dusty, and open industrial sites, and they also increase the complexity, energy consumption, and maintenance costs of the system. Therefore, the present invention provides a laser measurement device based on pipe fitting production. Summary of the Invention
[0003] The purpose of this invention is to provide a laser measuring device based on pipe fitting production to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser measuring device based on pipe fitting production, comprising a base, a fixing plate on the top of the base, a fixing component for fixing pipe fittings inside the fixing plate, an adjusting component for rotating the fixing plate at the bottom of the fixing component, and a laser measuring component for measuring the cross-sectional diameter of the pipe fittings on the top of one side of the base.
[0005] In a preferred embodiment, the laser measurement assembly includes a connecting frame fixedly connected to the top of one side of the base. The top of the connecting frame is provided with an electric slide rail. A fitting component is slidably connected to the outside of the electric slide rail. A first sealing cylinder is fixedly connected to one side of the top of the connecting frame. A sealing piston is slidably connected inside the first sealing cylinder.
[0006] In a preferred embodiment, a laser measuring device is fixedly connected to the bottom of the sealing piston, and a refractive plate is provided at the bottom of the inner cavity of the first sealing cylinder directly below the laser measuring device, with flow holes on both sides of the refractive plate.
[0007] In a preferred embodiment, a first connecting rod is fixedly connected to the top of the sealing piston, the other end of the first connecting rod is fixedly connected to the top of the bonding component, the bottom of the laser measuring device coincides with the plane where the bottom of the bonding component is located, and the top of the refractive plate coincides with the plane where the top of the fixing plate is located.
[0008] In a preferred embodiment, a fixed limiting post is fixedly connected to the top of the fixed plate, and two V-shaped sliding grooves are opened on the top of the fixed plate. The two sliding grooves are symmetrically distributed on both sides of the fixed limiting post, and the fixing assembly includes two movable limiting posts that are slidably connected to the two sliding grooves.
[0009] In a preferred embodiment, a second sealing cylinder is fixedly connected to the bottom of the fixed plate at the symmetrical axis of the two sliding grooves. One end of the second sealing cylinder is provided with a connecting pipe, and a sealing piston is slidably connected inside the other end of the second sealing cylinder. A second connecting rod is fixedly connected to the outside of the sealing piston, and a movable sleeve is slidably connected to the outside of the second sealing cylinder. The top of the movable sleeve is fixedly connected to the other end of the second connecting rod.
[0010] In a preferred embodiment, each of the slide grooves is slidably connected to a sliding block, and the two sides of the movable sleeve are rotatably connected to a second connecting arm. The bottom of each sliding block is rotatably connected to a first connecting arm. Each first connecting arm is provided with a sliding frame at the end facing the second connecting arm, and the second connecting arm is provided with a guide frame at the end facing the first connecting arm. A guide post is fixedly connected inside the guide frame, and the sliding frame is slidably connected to the outside of the guide post. A spring sleeved on the outside of the guide post is fixedly connected between one end of the sliding frame and one end of the inner cavity of the guide frame.
[0011] In a preferred embodiment, the adjustment assembly includes a sealing sleeve fixedly connected to the top of the base, a rotating disk rotatably connected inside the sealing sleeve, a connecting frame fixedly connected to the top of the rotating disk, the top of the connecting frame fixedly connected to the bottom of the fixing plate, a plurality of force-bearing fan blades evenly distributed in a ring around the outside of the rotating disk, two inclined jet heads symmetrically arranged on both sides of the inner cavity of the sealing sleeve, and a force-bearing cavity on both sides of the force-bearing fan blades.
[0012] In a preferred embodiment, a tapered tube is fixedly connected to the bottom of the first sealing cylinder. Second connecting pipes are provided on both sides of the tapered tube. The two second connecting pipes are fixedly connected to two jet heads via conduits. A first connecting pipe is provided at the bottom of the tapered tube, and the first connecting pipe is fixedly connected to the connecting pipe of the second sealing cylinder via a conduit. A third connecting pipe is provided on the front of the tapered tube. An air pump is provided at the top of the base. One end of the third connecting pipe is fixedly connected to the output end of the air pump via a conduit. The input end of the air pump is fixedly connected to the inside of the sealing sleeve via a conduit. A valve is provided on the outside of each connecting pipe. The gas inside the pipe is nitrogen.
[0013] In a preferred embodiment, both ends of the fixing plate are provided with adsorption magnets, and the end of the connecting frame facing the fixing plate is provided with a fixing magnet.
[0014] Compared with the prior art, the beneficial effects of the present invention are: This laser measurement device based on pipe fitting production achieves high-precision and high-stability measurement of pipe diameter by setting up laser measurement components and cooperating with a nitrogen-filled chamber design. It avoids measurement errors caused by laser beam scattering, reflection or contaminant interference. At the same time, the nitrogen environment reduces the risk of oxidation or chemical corrosion, ensuring that the pipe fitting surface and the measurement optical path are always in a clean state, further improving the measurement accuracy. This laser measurement device based on pipe fitting production achieves efficient and non-destructive clamping and fixing of pipes during the measurement process by setting up a fixing component combined with a nitrogen gas transmission mechanism. The fixing component works in coordination with the nitrogen gas drive system through a mechanical structure. When nitrogen gas is pressed into the second sealing cylinder, the pressure generated drives the mechanical parts to move, enabling the fixing component to automatically adapt to and clamp pipes of different diameters, ensuring that the pipe fitting remains stable and without shaking during the measurement process. This laser measuring device based on pipe fitting production uses nitrogen flow to rotate the pipe fitting by adjusting the opening and closing of the adjustment components and valves, thereby enabling laser measurement of the diameter at both ends of the pipe fitting, which improves the convenience of the device. Attached Figure Description
[0015] Figure 1 This is a front view of the structure of the present invention; Figure 2 This is a cross-sectional view of the first sealing cylinder; Figure 3 This is a schematic diagram of the bottom of the fixing plate; Figure 4 This is a schematic diagram of the connecting arm assembly; Figure 5 A front view of the adjustment component; Figure 6 This is a side view of the structure of the present invention.
[0016] In the diagram: 1. Base; 101. Sealing sleeve; 102. Rotary disk; 103. Force-bearing fan blade; 104. Jet head; 2. Connecting frame; 201. Fixed magnet; 3. First sealing cylinder; 4. First connecting rod; 401. Sealing piston; 5. Electric slide rail; 6. Fixed plate; 601. Slide groove; 602. Adsorption magnet; 603. Sliding block; 604. First connecting arm; 6041. Sliding frame; 605. Second connecting arm; 6051. Guide frame; 6052. Guide post; 6053. Spring; 7. Fixed limit post; 8. Moving limit post; 9. Connecting frame; 10. Laser measuring instrument; 1001. Refraction plate; 11. Second sealing cylinder; 12. Second connecting rod; 13. Movable sleeve; 14. Air pump; 15. Conical tube; 1501. First connecting tube; 1502. Second connecting tube; 1503. Third connecting tube. Detailed Implementation
[0017] The present invention will be further described below with reference to embodiments.
[0018] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0019] Please see Figure 1-6 This invention provides a laser measuring device based on pipe fitting production, including a base 1, a fixing plate 6 on the top of the base 1, a fixing assembly for fixing pipe fittings inside the fixing plate 6, a fixing limiting post 7 fixedly connected to the top of the fixing plate 6, two V-shaped sliding grooves 601 symmetrically distributed on both sides of the fixing limiting post 7, the fixing assembly including two movable limiting posts 8 slidably connected to the two sliding grooves 601, a second sealing cylinder 11 fixedly connected to the bottom of the fixing plate 6 at the axis of symmetry of the two sliding grooves 601, one end of the second sealing cylinder 11 having a connecting pipe, and a sealing piston 401 slidably connected inside the other end of the second sealing cylinder 11, a second connecting rod 12 fixedly connected to the outside of the sealing piston 401, and a second connecting rod 12 slidably connected to the outside of the second sealing cylinder 11. A movable sleeve 13 is attached, the top of which is fixedly connected to the other end of the second connecting rod 12. A sliding block 603 is slidably connected inside each slide groove 601. A second connecting arm 605 is rotatably connected to both sides of the movable sleeve 13. A first connecting arm 604 is rotatably connected to the bottom of each sliding block 603. A sliding frame 6041 is provided on the end of each first connecting arm 604 facing the second connecting arm 605. A guide frame 6051 is provided on the end of the second connecting arm 605 facing the first connecting arm 604. A guide post 6052 is fixedly connected inside the guide frame 6051. The sliding frame 6041 is slidably connected to the outside of the guide post 6052. A spring 6053 sleeved on the outside of the guide post 6052 is fixedly connected between one end of the sliding frame 6041 and one end of the inner cavity of the guide frame 6051. When the sealing piston 401 moves down, the external valves of the second connecting pipes 1502 on both sides of the tapered tube 15 are closed, and the valve of the first connecting pipe 1501 at the bottom of the tapered tube 15 is opened, so that nitrogen gas is pressed into the interior of the second sealing cylinder 11, and the gas pressure drives the sealing piston 401 inside the second sealing cylinder 11 to move backward, and the sealing piston 401 drives the second connecting rod 12 and the movable sleeve 13 to move. When the movable sleeve 13 moves backward, the second connecting arms 605 on both sides swing backward around their connection points with the movable sleeve 13. Since the second connecting arm 605 is connected to the first connecting arm 604 through the guide frame 6051 and the sliding frame 6041, the swing of the second connecting arm 605 will drive the first connecting arm 604 to move synchronously. The sliding frame 6041 at the end of the first connecting arm 604 slides along the guide post 6052 into the inner cavity of the guide frame 6051, compressing the spring 6053. The compression of the spring 6053 provides a buffering effect to avoid mechanical impact and ensure uniform clamping force. The guide post 6052 restricts the sliding frame 6041. The direction of movement ensures that the relative movement of the first connecting arm 604 and the second connecting arm 605 is smooth, preventing deviation or jamming. The other end of the first connecting arm 604 is rotatably connected to the sliding block 603. The movement of the first connecting arm 604 pushes the sliding block 603 to slide along the slide groove 601. Since the two slide grooves 601 are symmetrically distributed in a figure-eight shape, when the sliding block 603 slides in the slide groove 601 towards the fixed limiting post 7, it drives the moving limiting post 8 to move inward synchronously, thereby clamping the pipe fitting. The design of the figure-eight slide groove 601 enables the moving limiting post 8 to automatically adjust the clamping position according to the pipe fitting diameter, adapting to pipe fittings of different specifications. Nitrogen gas enters the second sealing cylinder 11 through the first connecting pipe 1501, pushing the sealing piston 401 to move smoothly, avoiding the impact and vibration that may be caused by mechanical drive.
[0020] In this embodiment, a laser measuring assembly for measuring the diameter of a pipe section is provided on the top of one side of the base 1. The laser measuring assembly includes a connecting frame 2 fixedly connected to the top of one side of the base 1. An electric slide rail 5 is provided on the top of the connecting frame 2. A fitting component is slidably connected to the outside of the electric slide rail 5. A first sealing cylinder 3 is fixedly connected to one side of the top of the connecting frame 2. A sealing piston 401 is slidably connected inside the first sealing cylinder 3. A laser measuring device 10 is fixedly connected to the bottom of the sealing piston 401. A refractive plate 1001 is provided at the bottom of the inner cavity of the first sealing cylinder 3, directly below the laser measuring device 10. Flow holes are provided on both sides of the refractive plate 1001. A first connecting rod 4 is fixedly connected to the top of the sealing piston 401. The other end of the first connecting rod 4 is fixedly connected to the top of the fitting component. The bottom of the laser measuring device 10 coincides with the plane where the bottom of the fitting component is located. The top of the refractive plate 1001 coincides with the plane where the top of the fixed plate 6 is located. This ensures that the distance between the laser measuring device 10 and the refractive plate 1001 is the diameter of the pipe section being measured. The pipe is placed on top of the fixed plate 6, and then the electric slide rail 5 is activated. The electric slide rail 5 moves the fitting part down to fit the top of the pipe. During the downward movement of the fitting part, the connecting frame 2 moves the sealing piston 401 down, and the sealing piston 401 moves the laser measuring device 10 down. When the fitting part fits the top of the pipe, the distance between the laser measuring device 10 and the refractive plate 1001 is the same as the cross-sectional diameter of the pipe. Since the inside of the first sealing cylinder 3 is filled with nitrogen, the laser measuring device 10 will not be affected by dust during the distance measurement process, avoiding laser beam scattering or attenuation and ensuring measurement accuracy.
[0021] In this embodiment, the bottom of the fixing assembly is provided with an adjusting assembly that drives the fixing plate 6 to rotate. The adjusting assembly includes a sealing sleeve 101 fixedly connected to the top of the base 1. A rotating disk 102 is rotatably connected inside the sealing sleeve 101. A connecting frame 9 is fixedly connected to the top of the rotating disk 102. The top of the connecting frame 9 is fixedly connected to the bottom of the fixing plate 6. Multiple force-bearing fan blades 103 are equidistantly distributed in a ring around the outside of the rotating disk 102. Two inclined jet heads 104 are symmetrically arranged on both sides of the inner cavity of the sealing sleeve 101. Force-bearing cavities are provided on both sides of the force-bearing fan blades 103. A tapered tube 15 is fixedly connected to the bottom of the first sealing cylinder 3. A second connecting tube 1502 is provided on both sides of the tapered tube 15. The two second connecting tubes 1502... The connecting pipe 1502 is fixedly connected to the two jet heads 104 through the conduit. The bottom of the tapered pipe 15 is provided with a first connecting pipe 1501. The first connecting pipe 1501 is fixedly connected to the connecting pipe of the second sealing cylinder 11 through the conduit. The front of the tapered pipe 15 is provided with a third connecting pipe 1503. The top of the base 1 is provided with an air pump 14. One end of the third connecting pipe 1503 is fixedly connected to the output end of the air pump 14 through the conduit. The input end of the air pump 14 is fixedly connected to the inside of the sealing sleeve 101 through the conduit. Each connecting pipe is provided with a valve on the outside. The gas inside the pipe is nitrogen. Both ends of the fixing plate 6 are provided with adsorption magnets 602. The end of the connecting frame 2 facing the fixing plate 6 is provided with a fixing magnet 201. When it is necessary to measure the diameter of the other end of the pipe, open the external valve of the second connecting pipe 1502 on one side and close the valve of the first connecting pipe 1501. At this time, compressed gas is input from the second connecting pipe 1502 to a jet head 104. Only the valve of the second connecting pipe 1502 on one side is opened, so that nitrogen gas is ejected only from the corresponding jet head 104. The nozzle direction of the jet head 104 forms a certain angle with the force-receiving cavity of the force-receiving fan blade 103, ensuring that the nitrogen gas flow can efficiently drive the force-receiving fan blade 103. Force-receiving cavities are provided on both sides of the force-receiving fan blade 103. After the nitrogen gas flow enters the force-receiving cavity, its kinetic energy is converted into The tangential thrust on the rotating disk 102 causes it to rotate around the axis of the sealing sleeve 101. Since the valve of the second connecting pipe 1502 on the other side is closed, the corresponding jet head 104 has no airflow output. The rotating disk 102 is only subjected to thrust on one side, achieving unidirectional rotation. The rotating disk 102 is rigidly connected to the fixed plate 6 via the connecting frame 9. The rotation of the rotating disk 102 directly drives the fixed plate 6 to rotate synchronously. When the fixed plate 6 rotates, the fixed limiting post 7 and the movable limiting post 8 at its top drive the pipe to rotate synchronously, causing the other end of the pipe to rotate directly below the laser measuring assembly, facilitating diameter measurement. The rotation angle of the rotating disk 102 (typically 180°) can be precisely controlled by controlling the jetting time or nitrogen flow rate, ensuring that the other end of the tube is accurately aligned with the laser measuring component. The air pump 14 draws nitrogen from the inner cavity of the sealing sleeve 101, compresses it, and then inputs it into the conical tube 15 through the third connecting pipe 1503. It is then distributed to the jet head 104 or the second sealing cylinder 11 via the second connecting pipe 1502 or the first connecting pipe 1501, forming a closed loop. The inner cavity of the sealing sleeve 101 maintains a slight negative pressure through the suction action of the air pump 14, preventing external dust from entering and ensuring the stability of the nitrogen circulation. When the turntable 102 rotates, the nitrogen pressure in the inner cavity of the sealing sleeve 101 is kept constant by the adjustment of the air pump 14 to avoid affecting the rotation accuracy due to pressure fluctuations. After the measurement is completed, the valve of the second connecting pipe 1502 is closed and the valve of the first connecting pipe 1501 is opened. Nitrogen enters the second sealing cylinder 11, drives the sealing piston 401 to reset, and drives the moving limit post 8 to slide outward, releasing the pipe fitting. The adsorption magnets 602 at both ends of the fixed plate 6 and the fixed magnets 201 on the connecting frame 2 interact magnetically to help the fixed plate 6 reset to the initial position, ensuring the positional accuracy of the pipe fitting during rotation and measurement.
[0022] The working principle and usage process of this invention are as follows: First, the pipe is placed on top of the fixed plate 6. Then, the electric slide rail 5 is started. The electric slide rail 5 drives the fitting part to move down and fit with the top of the pipe. During the downward movement of the fitting part, the connecting frame 2 will drive the sealing piston 401 to move down. The sealing piston 401 drives the laser measuring device 10 to move down. When the fitting part is fitted with the top of the pipe, the distance between the laser measuring device 10 and the refractive plate 1001 is the same as the cross-sectional diameter of the pipe. Since the inside of the first sealing cylinder 3 is filled with nitrogen, the laser measuring device 10 will not be affected by dust during the distance measurement process, avoiding laser beam scattering or attenuation and ensuring the accuracy of the measurement. When the sealing piston 401 moves down, the external valves of the second connecting pipes 1502 on both sides of the tapered tube 15 are closed, and the valve of the first connecting pipe 1501 at the bottom of the tapered tube 15 is opened, so that nitrogen gas is pressed into the interior of the second sealing cylinder 11, and the gas pressure drives the sealing piston 401 inside the second sealing cylinder 11 to move backward, and the sealing piston 401 drives the second connecting rod 12 and the movable sleeve 13 to move. When the movable sleeve 13 moves backward, the second connecting arms 605 on both sides swing backward around their connection points with the movable sleeve 13. Since the second connecting arm 605 is connected to the first connecting arm 604 through the guide frame 6051 and the sliding frame 6041, the swing of the second connecting arm 605 will drive the first connecting arm 604 to move synchronously. The sliding frame 6041 at the end of the first connecting arm 604 slides along the guide post 6052 into the inner cavity of the guide frame 6051, compressing the spring 6053. The compression of the spring 6053 provides a buffering effect to avoid mechanical impact and ensure uniform clamping force. The guide post 6052 restricts the sliding frame 6041. The direction of movement ensures that the relative movement of the first connecting arm 604 and the second connecting arm 605 is smooth, preventing deviation or jamming. The other end of the first connecting arm 604 is rotatably connected to the sliding block 603. The movement of the first connecting arm 604 pushes the sliding block 603 to slide along the slide groove 601. Since the two slide grooves 601 are symmetrically distributed in a figure-eight shape, when the sliding block 603 slides in the slide groove 601 towards the fixed limiting post 7, it drives the moving limiting post 8 to move inward synchronously, thereby clamping the pipe fitting. The design of the figure-eight slide groove 601 enables the moving limiting post 8 to automatically adjust the clamping position according to the pipe fitting diameter, adapting to pipe fittings of different specifications. When it is necessary to measure the diameter of the other end of the pipe, open the external valve of the second connecting pipe 1502 on one side and close the valve of the first connecting pipe 1501. At this time, compressed gas is input from the second connecting pipe 1502 to a jet head 104. Only the valve of the second connecting pipe 1502 on one side is opened, so that nitrogen gas is ejected only from the corresponding jet head 104. The nozzle direction of the jet head 104 forms a certain angle with the force-receiving cavity of the force-receiving fan blade 103, ensuring that the nitrogen gas flow can efficiently drive the force-receiving fan blade 103. Force-receiving cavities are provided on both sides of the force-receiving fan blade 103. After the nitrogen gas flow enters the force-receiving cavity, its kinetic energy is converted into The tangential thrust on the rotating disk 102 causes it to rotate around the axis of the sealing sleeve 101. Since the valve of the second connecting pipe 1502 on the other side is closed, the corresponding jet head 104 has no airflow output. The rotating disk 102 is only subjected to thrust on one side, achieving unidirectional rotation. The rotating disk 102 is rigidly connected to the fixed plate 6 via the connecting frame 9. The rotation of the rotating disk 102 directly drives the fixed plate 6 to rotate synchronously. When the fixed plate 6 rotates, the fixed limiting post 7 and the movable limiting post 8 at its top drive the pipe to rotate synchronously, causing the other end of the pipe to rotate directly below the laser measuring assembly, facilitating diameter measurement. The rotation angle of the rotating disk 102 (typically 180°) can be precisely controlled by controlling the jetting time or nitrogen flow rate, ensuring that the other end of the tube is accurately aligned with the laser measuring component. The air pump 14 draws nitrogen from the inner cavity of the sealing sleeve 101, compresses it, and then inputs it into the conical tube 15 through the third connecting pipe 1503. It is then distributed to the jet head 104 or the second sealing cylinder 11 via the second connecting pipe 1502 or the first connecting pipe 1501, forming a closed loop. The inner cavity of the sealing sleeve 101 maintains a slight negative pressure through the suction action of the air pump 14, preventing external dust from entering and ensuring the stability of the nitrogen circulation. When the turntable 102 rotates, the nitrogen pressure in the inner cavity of the sealing sleeve 101 is kept constant by the adjustment of the air pump 14 to avoid affecting the rotation accuracy due to pressure fluctuations. After the measurement is completed, the valve of the second connecting pipe 1502 is closed and the valve of the first connecting pipe 1501 is opened. Nitrogen enters the second sealing cylinder 11, drives the sealing piston 401 to reset, and drives the moving limit post 8 to slide outward, releasing the pipe fitting. The adsorption magnets 602 at both ends of the fixed plate 6 and the fixed magnets 201 on the connecting frame 2 interact magnetically to help the fixed plate 6 reset to the initial position, ensuring the positional accuracy of the pipe fitting during rotation and measurement.
[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A laser measuring device based on the production of tubular elements, comprising a base (1), characterized in that: The top of the base (1) is provided with a fixed plate (6), the inside of the fixed plate (6) is provided with a fixed component for fixing the pipe, the bottom of the fixed component is provided with an adjusting component for driving the fixed plate (6) to rotate, and the top of one side of the base (1) is provided with a laser measuring component for measuring the sectional diameter of the pipe.
2. The laser measuring device based on pipe production according to claim 1, characterized in that: The laser measuring component comprises a connecting frame (2) fixedly connected to the top of one side of the base (1), the top of the connecting frame (2) is provided with an electric sliding rail (5), the outer part of the electric sliding rail (5) is slidably connected with a matching piece, one side of the top of the connecting frame (2) is fixedly connected with a first sealing cylinder (3), and the inside of the first sealing cylinder (3) is slidably connected with a sealing piston (401).
3. The laser measuring device based on pipe production according to claim 2, characterized in that: The bottom of the sealing piston (401) is fixedly connected with a laser measuring device (10), the bottom of the inside of the first sealing cylinder (3) is located directly below the laser measuring device (10) and is provided with a refracting plate (1001), and flow-through holes are formed in the two sides of the refracting plate (1001).
4. The laser measuring device based on pipe production according to claim 3, characterized in that: The top of the sealing piston (401) is fixedly connected with a first connecting rod (4), the other end of the first connecting rod (4) is fixedly connected with the top of the matching piece, the bottom of the laser measuring device (10) coincides with the plane where the bottom of the matching piece is located, and the top of the refracting plate (1001) coincides with the plane where the top of the fixed plate (6) is located.
5. The laser measuring device based on pipe production according to claim 4, characterized in that: The top of the fixed plate (6) is fixedly connected with a fixed limiting column (7), the top of the fixed plate (6) is provided with two sliding grooves (601) in an eight-shaped distribution, and the two sliding grooves (601) are symmetrically distributed on the two sides of the fixed limiting column (7).
6. The laser measuring device based on pipe production according to claim 5, characterized in that: The bottom of the fixed plate (6) is fixedly connected with a second sealing cylinder (11) at the symmetrical axis of the two sliding grooves (601), one end of the second sealing cylinder (11) is provided with a communication pipe, the other end of the second sealing cylinder (11) is slidably connected with a sealing piston (401) in the inside, the outward face of the sealing piston (401) is fixedly connected with a second connecting rod (12), the outside of the second sealing cylinder (11) is slidably connected with a movable sleeve (13), and the top of the movable sleeve (13) is fixedly connected with the other end of the second connecting rod (12).
7. The laser measuring device based on pipe production according to claim 6, characterized in that: The inner part of each chute (601) is slidably connected with a sliding block (603), the two sides of the movable sleeve (13) are rotatably connected with a second connecting arm (605), the bottom of each sliding block (603) is rotatably connected with a first connecting arm (604), one end of each first connecting arm (604) towards the second connecting arm (605) is provided with a sliding frame (6041), one end of the second connecting arm (605) towards the first connecting arm (604) is provided with a guide frame (6051), the inner part of the guide frame (6051) is fixedly connected with a guide column (6052), the sliding frame (6041) is slidably connected outside the guide column (6052), and the one end of the sliding frame (6041) and the one end of the inner cavity of the guide frame (6051) are fixedly connected with a spring (6053) sleeved outside the guide column (6052).
8. The laser measuring device based on pipe production according to claim 7, characterized in that: The adjusting assembly comprises a sealing sleeve (101) fixedly connected to the top of the base (1), a rotating disc (102) rotatably connected to the inner part of the sealing sleeve (101), a connecting frame (9) fixedly connected to the top of the rotating disc (102), and the top of the connecting frame (9) is fixedly connected with the bottom of the fixed plate (6), a plurality of stress fan blades (103) are arranged at equal intervals on the outer part of the rotating disc (102), and two inclined jet heads (104) are symmetrically arranged in the inner cavity of the sealing sleeve (101).
9. The laser measuring device based on pipe production according to claim 8, characterized in that: The bottom of the first sealing cylinder (3) is fixedly connected with a conical pipe (15), the two sides of the conical pipe (15) are provided with second connecting pipes (1502), the two second connecting pipes (1502) are fixedly communicated with the two jet heads (104) through conduits, the bottom of the conical pipe (15) is provided with a first connecting pipe (1501), the first connecting pipe (1501) is fixedly communicated with the communicating pipe of the second sealing cylinder (11) through a conduit, the front of the conical pipe (15) is provided with a third connecting pipe (1503), the top of the base (1) is provided with an air pump (14), one end of the third connecting pipe (1503) is fixedly communicated with the output end of the air pump (14) through a conduit, the input end of the air pump (14) is fixedly communicated with the inner part of the sealing sleeve (101) through a conduit, the outer part of each connecting pipe is provided with a valve, and the gas in the pipeline is nitrogen.
10. The laser measuring device based on pipe production according to claim 9, characterized in that: The two ends of the fixed plate (6) are provided with adsorbing magnets (602), and one end of the connecting frame (2) towards the fixed plate (6) is provided with a fixed magnet (201).