A laser measuring device for measuring the bending angle of a bent part

Abstract

The application discloses a kind of bending piece bending angle laser measuring device, it is related to laser measuring technical field, including detection table, drive mechanism, movable rod, receiver, laser head, control panel, bent pipe material, the top of the detection table is through being provided with sliding slot one, and the inner wall of sliding slot one is connected with mounting seat with sliding fit.Therein, when the bending piece is measured by laser, the fixed bead is matched by the spiral groove, the rotating handle drives the adjusting disc to move, and the four fixed strips are protruded from the telescopic groove by the connecting rod and the diffusion groove, so that the pipe material is fixed from the inside, the continuous scanning and the accuracy of laser are ensured, after measuring one side, the telescopic rod is matched with the supporting rod and the rack and the limiting plate, the pipe material is lifted and rotated to turn over the surface, the double-side data acquisition is completed by single clamping, and the efficiency and data reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of laser measurement technology, specifically to a laser measuring device for the bending angle of a bent component. Background Technology

[0002] Bending parts are workpieces made by bending metal or non-metal pipes, plates, etc. into specific angles or shapes through machining. They are widely used in automobile manufacturing (such as exhaust pipes and chassis structures), rail transportation (such as brake pipes and carriage frames), aerospace (such as hydraulic pipelines) and construction machinery. The accuracy of the bending angle of bending parts directly determines the assembly precision and performance stability of the workpiece. Traditional manual inspection relies on vernier calipers and angle gauges, which is inefficient and prone to missed inspections. At present, laser measurement technology has become a research hotspot due to its non-contact and high-precision characteristics.

[0003] For example, Chinese patent "CN118533104A" discloses a bending angle measuring device for train pipe fittings. This angle measuring device can move the laser head and laser measuring head forward through the movable plate to detect the bending surface of the pipe and can prevent the convex and concave parts of the bending surface of the pipe from affecting the bending angle measurement.

[0004] However, existing bending angle measuring devices still have the following problems in actual implementation:

[0005] Because external clamping is typically used to clamp and inspect bent pipes, it directly covers a localized area of ​​the pipe surface. If the incident path of the laser beam overlaps with the clamping component, the obscured area cannot receive the laser signal, thus affecting the accuracy of the laser measurement. Furthermore, in a single laser measurement, only one side of the bent pipe can be inspected, making it impossible to verify the measurement by calculating symmetrical feature points on both sides. Since data from one side cannot be used for comparison, misjudgments are easily made due to local deformation or measurement errors. If the other side needs to be inspected, manual flipping or readjustment of the clamping position is required, significantly reducing the efficiency of laser measurement. Summary of the Invention

[0006] The purpose of this invention is to provide a laser measuring device for the bending angle of bent parts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides a laser measuring device for bending angle of bent parts, including a detection platform, a drive mechanism, a movable rod, a receiver, a laser head, a control panel, and a bent pipe. The top of the detection platform is provided with a through groove, and the inner wall of the groove is slidably connected to a mounting base.

[0008] The mounting base is equipped with an internal clamping anti-obstruction component to ensure stable fixation of the bent pipe from the inside during laser measurement, thereby ensuring that the laser can scan the outer surface of the bent area of ​​the pipe without interference.

[0009] The mounting base is equipped with flipping synchronization components on both outer walls to automatically perform the side-changing measurement operation of the bent pipe during laser measurement, which facilitates the comparison and verification of data from both sides.

[0010] Preferably, the inner clamping anti-shake component includes a sleeve, and the outer wall of the sleeve is rotatably connected to the interior of the mounting base. One end of the sleeve is internally threaded with a threaded rod, and the end of the threaded rod away from the mounting base is fixedly connected to a handle. The end of the threaded rod away from the handle is rotatably connected to a shaft, and the end of the shaft away from the threaded rod is fixedly connected to an adjusting disc. The outer wall of the adjusting disc slides against the inner wall of the sleeve. The inner wall of the sleeve has a spiral groove, and the outer wall of the adjusting disc is fixedly connected to a fixing bead corresponding to the spiral groove, and the outer wall of the fixing bead slides against the inner wall of the spiral groove.

[0011] Preferably, the inner wall of the sleeve at the end away from the threaded rod is provided with an expansion groove at equal intervals, and the inner wall of the expansion groove is slidably connected to a fixing strip. The ends of the four fixing strips facing the mounting base are all fixedly connected to a connecting rod. The inside of the adjusting plate is provided with a diffusion groove at equal intervals corresponding to the connecting rod, and the outer wall of the connecting rod is slidably connected to the inner wall of the diffusion groove.

[0012] Preferably, the flipping synchronization component includes a first shaft column, with the two near ends of the first shaft columns fixedly connected to the outer walls of both sides of the mounting base, and the two far ends of the first shaft columns rotatably connected to a mounting frame. The top of the mounting frame has an inner groove, and the inner wall of the inner groove is slidably connected to a telescopic rod. An anti-detachment block is fixedly connected to the end of the telescopic rod facing the first shaft column, and the outer wall of the anti-detachment block slides against the inner wall of the inner groove. A second shaft column is fixedly connected to the outer wall of the end of the telescopic rod away from the first shaft column, and a driving groove is opened on one side of the outer wall of the movable rod corresponding to the second shaft column. The outer wall of the movable rod slides against the inner wall of the driving groove.

[0013] Preferably, a fixing plate is fixedly connected to the bottom of the testing platform, and a support rod is fixedly connected to the inside of the fixing plate corresponding to the telescopic rod. A groove is formed on one outer wall of the telescopic rod, and a spring is fixedly connected to the inner wall of the groove. A locking block is fixedly connected to the other end of the spring, and the outer wall of the locking block slides against the inner wall of the groove. One outer wall of the locking block is inclined to the support rod. A torsion spring is fitted to the outer wall of the shaft column. The two torsion springs are fixedly connected to the outer walls of the mounting base on both sides at their closest points, and the two torsion springs are fixedly connected to the outer walls of the two mounting frames on their closest points at their furthest points.

[0014] Preferably, the outer wall of the mounting base away from the bent pipe has a groove three, and the inner wall of the groove three is slidably connected to a slide rod. The bottom of the slide rod is fixedly connected to a spring two, and the bottom of the spring two is fixedly connected to the inner wall of the groove three. The end of the slide rod away from the bent pipe is fixedly connected to a toothed rod. The outer wall of the sleeve is fixedly connected to a gear corresponding to the toothed rod, and one side of the gear meshes with one side wall of the toothed rod. The top of the testing platform has a through groove two, and the outer wall of the toothed rod slides against the inner wall of the groove two. The bottom of the toothed rod is fixedly connected to a limit plate. The outer wall of the mounting base facing the bent pipe has a temporary friction-increasing component.

[0015] Preferably, the temporary friction-enhancing component includes support blocks, with two support blocks symmetrically fixedly connected at their adjacent ends to the outer wall of the sleeve. A sliding cylinder is slidably connected inside the support block, and a pressing block is fixedly connected to the end of the sliding cylinder facing the bent pipe. The outer wall of the pressing block away from the sliding cylinder is inclined, and the adjacent side wall of the two pressing blocks slides against the outer wall of the sleeve. A slot is provided at the end of the two sliding cylinders away from the pressing block, and a spring is fixedly connected to the inner wall of the slot. A top post is fixedly connected to the other end of the spring, and the outer wall of the top post slides against the inner wall of the slot.

[0016] Preferably, the mounting base has a semi-circular ring symmetrically fixedly connected to the top column on the outer wall of the side facing the bent pipe, and the upper and lower ends of the semi-circular ring are provided with inclined grooves corresponding to the top column.

[0017] Preferably, the two drive mechanisms are symmetrically installed on the upper surfaces of both sides of the detection platform, the two movable rods are respectively installed in the two drive mechanisms, a plurality of receivers are installed on one side of one of the movable rods, a plurality of laser heads are installed on one side of the other movable rod, the control panel is installed on the outer wall of one side of one of the movable rods, and the top of the detection platform is symmetrically provided with limit grooves corresponding to the movable rods.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When measuring the bent pipe, the drive mechanism synchronously moves two movable rods from one end of the bent pipe to the other. At this time, the receiver and laser head are activated by the control panel. When the laser beam comes into contact with the bending surface of one side of the bent pipe, the data of the contact point between the laser beam and the bending surface is transmitted to the display screen of the control panel for display. As the movement of the laser head and receiver is completed, all contact points of the bending surface of the bent pipe are measured and displayed on the terminal, thus completing the measurement of the bending angle of the pipe.

[0020] 2. When performing laser measurement on bent parts, the spiral groove and the fixed bead work together to drive the adjustment plate to rotate when the handle is rotated. At the same time, the connecting rod and the diffusion groove work together to drive the four fixing bars to protrude from the telescopic groove, so as to achieve stable fixation from the inside of the bent pipe. This ensures that the laser can scan the outer surface of the bending area of ​​the pipe without interference, ensures complete acquisition required for angle calculation, realizes continuous detection of laser measurement, and helps to ensure the accuracy of laser measurement.

[0021] 3. When performing laser measurement on bent parts, after measuring one side of the bent pipe, the telescopic rod and support rod work together to lift the bent pipe. Then, through the cooperation of the toothed rod and the limiting plate, the bent pipe is lifted and rotated 180 degrees after being lifted to a certain height, realizing the flipping operation. This allows for convenient laser measurement of the other side of the bent pipe during the return movement. Double-sided data acquisition can be completed in a single clamping, avoiding the time loss of repeated positioning. The double-sided data can be directly compared and verified, identifying possible local differences in single-sided detection, thereby improving the efficiency and reliability of laser measurement.

[0022] 4. When performing laser measurement on bent parts, in order to avoid relative displacement between the tube and the fixing strip caused by inertial force during rotation, the connection strength between the bent tube and the sleeve is temporarily increased by the cooperation of two semi-circular rings and the top column during rotation, so as to ensure the accuracy of 180-degree rotation and thus ensure the accuracy of detection of the double-sided symmetrical features of the bent tube. In addition, extra clamping pressure is released during the non-rotation stage, and only the basic fixing force of internal clamping is retained to prevent the bent tube from plastic deformation due to excessive clamping. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a side view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram illustrating the movement relationship between the bent pipe and the sleeve of the present invention.

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 This is a schematic diagram illustrating the kinematic relationship between the movable rod and the telescopic rod of the present invention.

[0028] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A;

[0029] Figure 7 This is a schematic diagram showing the installation relationship between the mounting base and the gear of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the temporary friction-enhancing component of the present invention.

[0031] In the diagram: 1. Testing table; 2. Slide 1; 3. Mounting base; 7. Drive mechanism; 8. Movable rod; 9. Receiver; 10. Laser head; 11. Control panel; 12. Limiting groove; 13. Driving groove; 14. Slide 2; 15. Bending pipe; 4. Inner clamp anti-obstruction component; 401. Sleeve; 402. Threaded rod; 403. Handle; 404. Shaft; 405. Adjusting disc; 406. Spiral groove; 407. Fixing bead; 408. Telescopic groove; 409. Fixing strip; 410. Connecting rod; 411. Diffusion groove; 5. Tilting synchronization component; 501. Shaft 1; 5 02. Mounting frame; 503. Inner groove; 504. Telescopic rod; 505. Anti-detachment block; 506. Shaft column two; 507. Fixing plate; 508. Support rod; 509. Groove; 510. Spring one; 511. Locking block; 512. Torsion spring; 513. Slide groove three; 514. Slide rod; 515. Spring two; 516. Gear rack; 517. Gear; 518. Limiting plate; 6. Temporary friction-enhancing component; 601. Support block; 602. Slide cylinder; 603. Pressing block; 604. Locking groove; 605. Spring three; 606. Top column; 607. Semi-arc ring; 608. Inclined groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1, please refer to Figures 1-8 The present invention provides a laser measuring device for bending angle of bent parts, including a detection platform 1, a drive mechanism 7, a movable rod 8, a receiver 9, a laser head 10, a control panel 11, and a bent pipe 15. The top of the detection platform 1 is provided with a sliding groove 2, and the inner wall of the sliding groove 2 is slidably connected to a mounting base 3.

[0034] The mounting base 3 has an internal clamping anti-shading component 4.

[0035] Furthermore, the inner clamping anti-shake component 4 includes a sleeve 401, and the outer wall of the sleeve 401 is rotatably connected to the interior of the mounting base 3. One end of the sleeve 401 is internally threaded with a threaded rod 402, and the end of the threaded rod 402 away from the mounting base 3 is fixedly connected with a handle 403. The end of the threaded rod 402 away from the handle 403 is rotatably connected with a shaft 404, and the end of the shaft 404 away from the threaded rod 402 is fixedly connected with an adjusting disc 405. The outer wall of the adjusting disc 405 slides against the inner wall of the sleeve 401. The inner wall of the sleeve 401 is provided with a spiral groove 406, and the outer wall of the adjusting disc 405 is fixedly connected with a fixing bead 407 corresponding to the spiral groove 406. The outer wall of the fixing bead 407 slides against the inner wall of the spiral groove 406.

[0036] More specifically, in this embodiment, when using this device to measure the fixed bent pipe 15, the two movable rods 8 are first supported and restricted by the limiting groove 12, so that when the two drive mechanisms 7 are running, they can be synchronously driven to move the two movable rods 8 from one end of the bent pipe 15 to the other end. At this time, the receiver 9 and the laser head 10 are started by the control panel 10. When the beam of light irradiated by the laser head 10 comes into contact with one side of the bending surface of the bent pipe 15, the data of the contact point between the beam of light irradiated by the laser head 10 and the bending surface of the bent pipe 15 is transmitted to the display screen of the control panel 10 for display. As the movement of the laser head 10 and the receiver 9 is completed, all the contact points of the bending surface of the bent pipe 15 are measured and displayed on the terminal, so as to complete the measurement of the bending angle of the pipe.

[0037] Next, when installing the bent pipe 15, first, the bent pipe 15 is put into the outside of the sleeve 401. Then, a threaded rod 402 is connected to one end of the sleeve 401 by an internal thread. A handle 403 is fixedly connected to the end of the threaded rod 402 away from the mounting base 3. A shaft 404 is rotatably connected to the end of the threaded rod 402 away from the handle 403. An adjusting plate 405 is fixedly connected to the end of the shaft 404 away from the threaded rod 402. Thus, the threaded rod 402 can be moved by rotating the handle 403, and the adjusting plate 405 can be moved by rotating the shaft 404.

[0038] Next, a spiral groove 406 is formed on the inner wall of the sleeve 401. A fixing bead 407 is fixedly connected to the outer wall of the adjusting disc 405 corresponding to the spiral groove 406, and the outer wall of the fixing bead 407 slides against the inner wall of the spiral groove 406. Thus, the adjusting disc 405 can rotate slightly during movement through the cooperation of the spiral groove 406 and the fixing bead 407. Then, a telescopic groove 408 is formed at equal intervals through the inner wall of the end of the sleeve 401 away from the threaded rod 402, and a fixing strip 409 is slidably connected to the inner wall of the telescopic groove 408. A connecting rod 410 is fixedly connected to the end of each of the four fixing strips 409 facing the mounting base 3. The internal connecting rod 410 of the 05 is provided with a diffusion groove 411 that is equidistantly provided. The outer wall of the connecting rod 410 slides against the inner wall of the diffusion groove 411. When the adjusting plate 405 rotates slightly, the fixing strip 409 is restricted by the telescopic groove 408. With the cooperation of the connecting rod 410 and the diffusion groove 411, the four fixing strips 409 can continuously extend outward from the telescopic groove 408 to achieve stable fixation from the inside of the bent pipe 15. This ensures that the laser can scan the outer surface of the bending area of ​​the pipe without interference, ensures complete acquisition required for angle calculation, realizes continuous detection of laser measurement, and helps to ensure the accuracy of laser measurement.

[0039] In Example 2, based on the above examples, the outer walls on both sides of the mounting base 3 are provided with flipping synchronization components 5.

[0040] Furthermore, the flipping synchronization component 5 includes a first shaft column 501. The two ends of the first shaft columns 501 that are close to each other are fixedly connected to the outer walls of the two sides of the mounting base 3. The two ends of the first shaft columns 501 that are far apart are rotatably connected to the mounting frame 502. The top of the mounting frame 502 is provided with an inner groove 503. The inner wall of the inner groove 503 is slidably connected to a telescopic rod 504. The end of the telescopic rod 504 facing the first shaft column 501 is fixedly connected to an anti-detachment block 505. The outer wall of the anti-detachment block 505 slides against the inner wall of the inner groove 503. The outer wall of the end of the telescopic rod 504 that is far away from the first shaft column 501 is fixedly connected to a second shaft column 506. The outer wall of one side of the movable rod 8 is provided with a driving groove 13 corresponding to the second shaft column 506. The outer wall of the movable rod 8 slides against the inner wall of the driving groove 13.

[0041] More specifically, in this embodiment, to achieve rapid and convenient double-sided laser measurement of the bent pipe 15, during the initial measurement of one side of the bent pipe 15, a mounting frame 502 is rotatably connected to the ends of two shafts 501 that are far apart. The top of the mounting frame 502 has an inner groove 503, and a telescopic rod 504 is slidably connected to the inner wall of the inner groove 503. An anti-detachment block 505 is fixedly connected to the end of the telescopic rod 504 facing the shaft 501. The outer wall of the anti-detachment block 505 is flush with the inner groove 503. The inner walls slide in contact with each other. The outer wall of the end of the telescopic rod 504 away from the first shaft 501 is fixedly connected to the second shaft 506. The outer wall of one side of the movable rod 8 is provided with a drive groove 13 corresponding to the second shaft 506, and the outer wall of the movable rod 8 slides in contact with the inner wall of the drive groove 13. Thus, during the initial measurement, when the two movable rods 8 move, the engagement of the drive groove 13 with the second shaft 506 can cause the mounting frame 502 to rotate around the first shaft 501 and pull the telescopic rod 504 out of the mounting frame 502.

[0042] When the measurement is completed, the two movable rods 8 will continue to move a certain distance. At this time, a fixed plate 507 is fixedly connected to the bottom of the testing platform 1, and a support rod 508 is fixedly connected to the telescopic rod 504 inside the fixed plate 507. A groove 509 is opened on one side of the outer wall of the telescopic rod 504, and a spring 510 is fixedly connected to the inner wall of the groove 509. A locking block 511 is fixedly connected to the other end of the spring 510, and the outer wall of the locking block 511 slides against the inner wall of the groove 509. One side of the outer wall of the locking block 511 is inclined to the support rod 508. Thus, when the measurement is completed, the outer wall of the telescopic rod 504 will contact the support rod 508. At the same time, due to the setting of the anti-detachment block 505, the extension distance of the telescopic rod 504 reaches its maximum. During the distance moved after the measurement is completed, the telescopic rod 504 will drive the mounting base 3 to rise due to the pressure restriction of the support rod 508.

[0043] Then, when the measurement is completed and the remaining distance has been moved, the locking block 511 and the spring 510 cooperate to press the locking block 511 into the groove 509 through the contact between the inclined surface and the support rod 508 before the movement is completed. When the movement is completed, the locking block 511 can be ejected from the groove 509 again by the spring 510 and cooperate with the support rod 508 to limit and maintain the current height of the mounting base 3.

[0044] Then, during the ascent of the mounting base 3, a sliding groove 513 is formed on the outer wall of the mounting base 3 away from the bent pipe 15. A sliding rod 514 is slidably connected to the inner wall of the sliding groove 513. A spring 515 is fixedly connected to the bottom of the sliding rod 514, and the bottom of the spring 515 is fixedly connected to the inner wall of the sliding groove 513. A toothed rod 516 is fixedly connected to the end of the sliding rod 514 away from the bent pipe 15. A gear 517 is fixedly connected to the outer wall of the sleeve 401 corresponding to the toothed rod 516, and one side of the gear 517 is adjacent to one side wall of the toothed rod 516. The meshing and matching are achieved by a sliding groove 14 extending through the top of the testing platform 1, with the outer wall of the rack 516 sliding against the inner wall of the sliding groove 14. The bottom of the rack 516 is fixedly connected to a limiting plate 518, so that the rack 516 can be driven to rise synchronously during the rising process. When it rises to a certain height, that is, when the top of the limiting plate 518 is blocked by the bottom of the testing platform 1, the rack 516 can no longer rise. Thus, through the cooperation of the gear 517 and the rack 516, the sleeve 401 can rotate at a fixed angle, that is, rotate 180 degrees.

[0045] After being raised to a certain height, the bent pipe 15 is then lifted and rotated 180 degrees to achieve the flipping operation, avoiding premature flipping and jamming. This allows for convenient laser measurement of the other side of the bent pipe 15 when the movable rod 8 returns to its original position. Double-sided data acquisition can be completed in a single clamping, avoiding the time loss of repeated positioning. The double-sided data can be directly compared and verified to identify possible local differences in single-sided detection, thereby improving the efficiency and reliability of laser measurement.

[0046] Next, when the bent pipe 15 is first installed, the rotation of the rack 516 and gear 517 is restricted by the elastic force of the spring 515 and the slide bar 514, so as to prevent the sleeve 401 from rotating freely when the handle 403 is rotated, thus preventing the fixing operation from being achieved.

[0047] Next, after the two movable rods 8 have been reset, the bent pipe 15 after measurement is removed, and then the two locking blocks 511 are manually pressed back into the groove 509. At this time, the mounting base 3 descends under the action of gravity. At the same time, a torsion spring 512 is attached to the outer wall of the first shaft 501. The two torsion springs 512 are fixedly connected to the outer walls of the two sides of the mounting base 3 at their close ends, and fixedly connected to the outer walls of the two mounting frames 502 at their far ends. Thus, the elastic force of the torsion springs 512 can drive the two mounting frames 502 back to the vertical state, so that the two telescopic rods 504 slide back into the inner groove 503. Under the elastic force of the torsion springs 512, the second shaft 506 can be flush with the driving groove 13.

[0048] In Example 3, based on the above examples, a temporary friction-increasing component 6 is provided on the outer wall of the mounting base 3 facing the bent pipe 15.

[0049] Furthermore, the temporary friction-enhancing component 6 includes a support block 601. The two support blocks 601 are symmetrically fixedly connected to the outer wall of the sleeve 401 at their close ends. A slide cylinder 602 is slidably connected inside the support block 601. A pressing block 603 is fixedly connected to the end of the slide cylinder 602 facing the bent pipe 15. The outer wall of the pressing block 603 away from the slide cylinder 602 is inclined. The side wall of the two pressing blocks 603 close to each other slides against the outer wall of the sleeve 401. A slot 604 is provided at the end of the two slide cylinders 602 away from the pressing block 603. A spring 605 is fixedly connected to the inner wall of the slot 604. A top post 606 is fixedly connected to the other end of the spring 605. The outer wall of the top post 606 slides against the inner wall of the slot 604.

[0050] More specifically, in the embodiment, when the bent pipe 15 is first installed, that is, when the bent pipe 15 is put into the outside of the sleeve 401, the end of the bent pipe 15 should be in contact with the inclined surface of the pressing block 603, and the end of the top column 606 should be properly attached to the surface of the mounting base 3.

[0051] Then, during the subsequent rotation, the two support blocks 601 are symmetrically fixed to the outer wall of the sleeve 401 at their close ends. The two sliding cylinders 602 are provided with a slot 604 at their ends away from the pressing block 603. A spring 605 is fixedly connected to the inner wall of the slot 604. A top post 606 is fixedly connected to the other end of the spring 605. A semi-circular ring 607 is symmetrically fixedly connected to the top post 606 on the outer wall of the mounting base 3 facing the bent pipe 15. The upper and lower end faces of the semi-circular ring 607 are provided with inclined grooves 608 corresponding to the top post 606.

[0052] Therefore, when the sleeve 401 drives the bent pipe 15 to rotate, in order to avoid the relative displacement between the pipe and the fixing strip 409 caused by the inertial force during the rotation process, which would prevent accurate rotation of 180 degrees and cause errors in the comparison data, the support block 601 drives the two top columns 606 to rotate circumferentially. Thus, through the setting of the inclined groove 608, the spring 605 is squeezed during the entire rotation process. This allows the slide cylinder 602 to drive the two pressing blocks 603 to squeeze and fit the inner wall of the bent pipe 15, temporarily increasing the connection strength between the bent pipe 15 and the sleeve 401, ensuring the accuracy of the 180-degree rotation, and thus ensuring the accuracy of the double-sided symmetrical feature detection of the bent pipe 15. In addition, during the non-rotation stage, the additional clamping pressure is released, retaining only the basic fixing force of the internal clamping, preventing the bent pipe 15 from plastic deformation due to excessive clamping.

[0053] Working principle: First, the bent pipe 15 is inserted into the outside of the sleeve 401, and the end of the bent pipe 15 should be in contact with the inclined surface of the pressing block 603, and the end of the top column 606 should be properly attached to the surface of the mounting base 3. Then, by rotating the handle 403, the threaded rod 402 is moved, which in turn can drive the adjusting plate 405 to move through the shaft 404. At this time, through the cooperation of the spiral groove 406 and the fixing bead 407, the adjusting plate 405 rotates slightly during the movement. At this time, through the restriction of the fixing strip 409 by the telescopic groove 408, under the cooperation of the connecting rod 410 and the diffusion groove 411, the four fixing strips 409 can continuously diffuse outward from the telescopic groove 408 to achieve stable fixation from the inside of the bent pipe 15.

[0054] Then, during the initial measurement, as the two movable rods 8 move, the engagement of the drive groove 13 with the second shaft 506 causes the mounting frame 502 to rotate around the first shaft 501 and pull the telescopic rod 504 out of the mounting frame 502. When the measurement is completed, the two movable rods 8 will continue to move a certain distance. Since the outer wall of the telescopic rod 504 will contact the support rod 508 at this time, and with the anti-detachment block 505, the pulling distance of the telescopic rod 504 will also reach its maximum. During the distance moved after the measurement is completed, the telescopic rod 504 will drive the mounting base 3 to rise due to the pressure restriction of the support rod 508.

[0055] When the measurement is completed and the remaining distance is moved, before the movement is completed, the locking block 511 can be pressed into the groove 509 by the contact between the inclined plane and the support rod 508. After the movement is completed, the locking block 511 can be ejected from the groove 509 again by the spring 510 and cooperate with the support rod 508 to limit and maintain the current height of the mounting base 3. Then, during the rising process of the mounting base 3, the rack 516 can be driven to rise synchronously. When it rises to a certain height, that is, when the top of the limiting plate 518 is blocked by the bottom of the detection table 1, the rack 516 can no longer rise. Thus, through the cooperation of the gear 517 and the rack 516, the sleeve 401 can rotate at a fixed angle, that is, rotate 180 degrees.

[0056] Then, during the subsequent rotation process, when the sleeve 401 drives the bent pipe 15 to rotate, in order to avoid the relative displacement between the pipe and the fixing strip 409 caused by the inertial force during the rotation process, which would prevent accurate rotation of 180 degrees and cause errors in the comparison data, the support block 601 drives the two top columns 606 to rotate circumferentially. Thus, through the setting of the inclined groove 608, the spring 605 is squeezed during the entire rotation process. This allows the slide cylinder 602 to drive the two pressing blocks 603 to squeeze and fit the inner wall of the bent pipe 15, temporarily increasing the connection strength between the bent pipe 15 and the sleeve 401, ensuring the accuracy of the 180-degree flip, and thus ensuring the accuracy of the double-sided symmetrical feature detection of the bent pipe 15. In addition, during the non-rotation stage, the additional clamping pressure is released, retaining only the basic fixing force of the internal clamping, to prevent the bent pipe 15 from plastic deformation due to excessive clamping.

[0057] 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 and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser measuring device for the bending angle of a bent component, comprising a detection platform (1), a drive mechanism (7), a movable rod (8), a receiver (9), a laser head (10), a control panel (11), and a bent pipe (15), characterized in that: The top of the testing platform (1) is provided with a sliding groove (2), and the inner wall of the sliding groove (2) is slidably connected to the mounting base (3). The mounting base (3) is provided with an internal clamping anti-obstruction component (4) to fix it from the inside of the bent pipe (15) during laser measurement, so as to ensure that the laser scans the outer surface of the bent area of ​​the pipe without interference. The mounting base (3) is provided with flipping synchronization components (5) on both outer walls to automatically realize the face-changing measurement operation of the bent pipe (15) and perform double-sided data comparison and verification. The flipping synchronization component (5) includes a shaft column (501). The two shaft columns (501) are fixedly connected at their close ends to the outer walls of the mounting base (3) on both sides. The two shaft columns (501) are rotatably connected at their far ends to a mounting frame (502). The top of the mounting frame (502) is provided with an inner groove (503). A telescopic rod (504) is slidably connected to the inner wall of the inner groove (503). The telescopic rod (504) faces the shaft column (501). One end of the telescopic rod (504) is fixedly connected to an anti-detachment block (505), the outer wall of the anti-detachment block (505) slides against the inner wall of the inner groove (503), the outer wall of the telescopic rod (504) away from the first shaft (501) is fixedly connected to a second shaft (506), the outer wall of one side of the movable rod (8) is provided with a drive groove (13) corresponding to the second shaft (506), and the outer wall of the movable rod (8) slides against the inner wall of the drive groove (13); The two drive mechanisms (7) are symmetrically installed on the upper surfaces of both sides of the detection table (1), and the two movable rods (8) are respectively installed in the two drive mechanisms (7); The bottom of the testing platform (1) is fixedly connected to a fixing plate (507), and the inside of the fixing plate (507) is fixedly connected to a support rod (508) corresponding to the telescopic rod (504). A groove (509) is provided on one side of the outer wall of the telescopic rod (504), and a spring (510) is fixedly connected to the inner wall of the groove (509). A locking block (511) is fixedly connected to the other end of the spring (510), and the outer wall of the locking block (511) slides against the inner wall of the groove (509). One side of the outer wall of the locking block (511) is inclined to the support rod (508). A torsion spring (512) is attached to the outer wall of the shaft column (501). The two torsion springs (512) are fixedly connected to the outer walls of the mounting base (3) at their closest points, and the two torsion springs (512) are fixedly connected to the outer walls of the two mounting frames (502) at their furthest points.

2. The laser measuring device for bending angle of a bent part according to claim 1, characterized in that, Several receivers (9) are installed on one side of one of the movable rods (8), several laser heads (10) are installed on one side of another movable rod (8), the control panel (11) is installed on the outer wall of one side of one of the movable rods (8), and the top of the detection platform (1) is symmetrically provided with limit grooves (12) corresponding to the movable rods (8).

3. A laser measuring device for the bending angle of a bent part according to claim 1 or 2, characterized in that, The inner clamping anti-shake component (4) includes a sleeve (401), and the outer wall of the sleeve (401) is rotatably connected to the interior of the mounting base (3). One end of the sleeve (401) is internally threaded with a threaded rod (402), and the end of the threaded rod (402) away from the mounting base (3) is fixedly connected with a handle (403). The end of the threaded rod (402) away from the handle (403) is rotatably connected with a shaft (404), and the end of the shaft (404) away from the threaded rod (402) is fixedly connected with an adjusting disc (405). The outer wall of the adjusting disc (405) is in contact with and slides against the inner wall of the sleeve (401). The inner wall of the sleeve (401) is provided with a spiral groove (406), and the outer wall of the adjusting disc (405) is fixedly connected with a fixing bead (407) corresponding to the spiral groove (406), and the outer wall of the fixing bead (407) is in contact with and slides against the inner wall of the spiral groove (406).

4. The laser measuring device for bending angle of a bent part according to claim 3, characterized in that, The sleeve (401) has an expansion groove (408) that is equidistantly opened on the inner wall of the end away from the threaded rod (402), and the inner wall of the expansion groove (408) is slidably connected to a fixing strip (409). The four fixing strips (409) are all fixedly connected to a connecting rod (410) at the end facing the mounting base (3). The inside of the adjusting plate (405) is provided with a diffusion groove (411) that is equidistantly opened on the connecting rod (410), and the outer wall of the connecting rod (410) is slidably connected to the inner wall of the diffusion groove (411).

5. The laser measuring device for bending angle of a bent part according to claim 4, characterized in that, The mounting base (3) has a sliding groove (513) on the outer wall away from the bent pipe (15), and a sliding rod (514) is slidably connected to the inner wall of the sliding groove (513). A spring (515) is fixedly connected to the bottom of the sliding rod (514), and the bottom of the spring (515) is fixedly connected to the inner wall of the sliding groove (513). A toothed rod (516) is fixedly connected to the end of the sliding rod (514) away from the bent pipe (15). A gear (517) is fixedly connected to the outer wall of the sleeve (401) corresponding to the toothed rod (516), and one side of the gear (517) meshes with one side wall of the toothed rod (516). The top of the testing table (1) has a sliding groove (14) through it, and the outer wall of the toothed rod (516) slides against the inner wall of the sliding groove (14). A limit plate (518) is fixedly connected to the bottom of the toothed rod (516).

6. The laser measuring device for bending angle of a bent part according to claim 5, characterized in that, A temporary friction-enhancing component (6) is provided on the outer wall of the mounting base (3) facing the bent pipe (15); the temporary friction-enhancing component (6) includes a support block (601), and the two support blocks (601) are symmetrically fixedly connected at their close ends to the outer wall of the sleeve (401). A slide cylinder (602) is slidably connected inside the support block (601), and a pressing block (603) is fixedly connected at the end of the slide cylinder (602) facing the bent pipe (15). The pressing block (603) is away from the slide cylinder. One side of the outer wall of (602) is inclined. The side wall of the two pressing blocks (603) that are close to each other slides against the outer wall of the sleeve (401). The two sliding cylinders (602) have a slot (604) at one end away from the pressing block (603). A spring three (605) is fixedly connected to the inner wall of the slot (604). A top column (606) is fixedly connected to the other end of the spring three (605). The outer wall of the top column (606) slides against the inner wall of the slot (604).

7. The laser measuring device for bending angle of a bent part according to claim 6, characterized in that, The mounting base (3) is symmetrically fixedly connected to the top column (606) on the outer wall of the side facing the bent pipe (15) with a semi-circular ring (607), and the upper and lower ends of the semi-circular ring (607) are provided with inclined grooves (608) corresponding to the top column (606).

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