A barrel mouth misalignment measuring device and method

Abstract

The application provides a cylinder mouth misalignment measuring device and method. The cylinder mouth misalignment measuring device comprises a roller, a radial track, a radial trolley, a measuring emission mechanism, an axial track, an axial trolley, a measuring receiving mechanism and a control console. The radial trolley at the end of the cylinder drives the radial movement of the measuring emission mechanism, and the laser thereon is used to establish a first reference. The axial trolley at the side of the cylinder drives the axial movement of the measuring receiving mechanism along the cylinder, and the target mirror thereon cooperates with the laser to establish a second reference. The laser collimation and the photoelectric target mirror sensing are combined to replace manual visual measurement and caliper measurement. The control console calculates the mouth misalignment amount according to the difference between the two references and the theoretical value of the cylinder. The device is suitable for different specifications of cylinders through modular tracks and adjustable mechanisms, and realizes high-precision, automatic and continuous measurement of the mouth misalignment amount of the cylinder through the combination of non-contact laser measurement and mechanical contact, thereby effectively improving the detection efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to cylinders in the field of pressure vessels, and in particular to a device and method for measuring misalignment of cylinder openings. Background Technology

[0002] Misalignment refers to the displacement or unevenness caused by deformation and welding deviations at the welded joint. Misalignment amount is the dimensional deviation of the weld edge from its designed position due to deformation and deviations during the welding process; it is used to measure the degree of misalignment at the welded joint. Excessive misalignment may lead to welding defects. The misalignment amount at butt welds refers to the distance by which the steel plates on both sides of the butt weld are alternately offset in the thickness direction.

[0003] The allowable value of misalignment of the butt joint circumferential seam of pressure vessel shell-head and the circumferential seam between sections is affected by the welding standard, material type and stress requirements. GB150.4 stipulates that the misalignment of the inner wall of single-sided welding is ≤2mm, and the misalignment of gas-electric vertical welding is ≤10% of the base material thickness and ≤3mm.

[0004] Experiments show that when the misalignment exceeds 0.15 mm, the tensile strength of the weld decreases by 12%-18%; when it exceeds 0.30 mm, the distortion of the molten pool shape intensifies.

[0005] Measurement of misalignment at the cylinder joint: There is usually a special weld inspection ruler, similar to a micrometer, which is placed flat on the weld joint of the cylinder and the difference is read to determine the misalignment.

[0006] The hazards of misalignment: Misaligned cylinders may experience localized stress concentration during use. If the flange on the misaligned side is under load, cracks or even fractures can easily occur at the misalignment point. Controlling the misalignment of the joint is crucial for ensuring weld quality.

[0007] In the manufacturing process of pressure vessels, the misalignment of the shell joint is an important quality control indicator. According to relevant standards, the misalignment of the shell joint should meet the following requirements:

[0008] 1. For longitudinal welds, the misalignment should not exceed 10% of the wall thickness and should not exceed 3 mm. This means that in actual operation, it is necessary to strictly control the alignment accuracy of the steel plates on both sides of the weld to ensure that the misalignment does not exceed the specified range.

[0009] 2. For butt welds of equal thickness, when the wall thickness is greater than 10 mm, the misalignment should not exceed 10% of the wall thickness plus 1 mm, and should not exceed 6 mm. This provision takes into account the influence of wall thickness on the tolerance for misalignment, ensuring good welding quality under different wall thickness conditions.

[0010] However, in the process of implementing the inventive technical solution in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0011] In the traditional cylinder manufacturing process, the detection of misalignment at the joints relies on manual measurement using rulers and templates at multiple points on the inner and outer walls of the cylinder, which has obvious drawbacks.

[0012] 1) Measurement accuracy is greatly affected by personnel skills and experience, resulting in poor consistency;

[0013] 2) Inefficient, especially for long cylindrical sections, requiring multiple climbs and positioning;

[0014] 3) It cannot achieve continuous measurement and real-time data recording and analysis;

[0015] 4) Working at heights or inside cylinders poses safety hazards.

[0016] This method is inefficient, lacks the required accuracy, and is easily affected by the subjective factors of the operator. It requires manual generation of inspection reports. With the increasing demands for product quality in the manufacturing industry, the market urgently needs a method that can quickly and accurately detect misalignment at the cylinder joint, perform precise measurement and scribing to ensure the alignment accuracy of the steel plates, and adjust welding parameters in a timely manner during the welding process to reduce welding deformation and misalignment. Summary of the Invention

[0017] To overcome the shortcomings of existing technologies and address the problem of low accuracy in measuring misalignment at the cylinder joint, which leads to decreased welding quality, increased stress concentration, and consequently reduced cylinder performance, this application provides a cylinder joint misalignment measurement device and method. This method, through a cylinder joint misalignment measurement device, is adaptable to cylinders of different diameters and lengths, achieving automated, continuous, and high-precision measurement of misalignment. It also processes, displays, and stores the measurement data in real time, effectively improving detection efficiency and accuracy, and solving the technical problem of cylinder joint misalignment measurement.

[0018] The solution adopted by the embodiments of this application to solve the technical problem is:

[0019] A device for measuring misalignment of cylinder openings includes a roller, a radial rail, a radial trolley, a measuring launching mechanism, an axial rail, an axial trolley, a measuring receiving mechanism, and a control console.

[0020] The idler rollers are symmetrically arranged at the bottom of the cylinder;

[0021] The radial track is located at the end of the cylinder and is perpendicular to the cylinder's centerline;

[0022] The radial trolley sits on the radial track and slides radially along the cylinder; it has a first linear module, on which a first slider is provided;

[0023] The measuring and transmitting mechanism is connected to the first slider and moves up and down with it. A laser is installed in the measuring and transmitting mechanism to emit a laser light source and confirm the horizontal quadrant point of the diameter at the opening side of the cylinder.

[0024] The axial track is located on the side of the cylinder and is parallel to the cylinder's centerline;

[0025] An axial trolley sits on an axial track and slides along the cylinder axis; it has a second linear module with a second slider on it; a connecting seat is connected to the second slider, and a third linear module is connected to the connecting seat. The third linear module rises and falls with the second slider, and a third slider is on the third linear module.

[0026] The measuring receiving mechanism is connected to the third slider and moves with the third slider; a telescopic block is provided at the front end of the measuring receiving mechanism to contact the opening side of the cylinder, and a target mirror is provided on the side of the telescopic block.

[0027] The control console is located beside the radial track and is equipped with a data acquisition and processing unit and a display and control system. It receives the status signal of the laser and the spot position signal of the target mirror, calculates the misalignment in real time, and displays it on the screen in the form of numbers and charts. The data is saved and exported. At the same time, when the misalignment exceeds the standard value, an alarm is displayed.

[0028] To further address the technical problems to be solved in the embodiments of this application, the embodiments of this application provide a method for measuring misalignment of cylinder openings, which includes the following steps:

[0029] Step 1. Arrangement: Lay radial and axial rails next to the cylinder, and assemble radial and axial trolleys respectively, ensuring their parallelism and flatness;

[0030] Step 2. Leveling: Adjust the cylinder to be level with both the radial and axial tracks using the rollers, and keep the cylinder opening at the horizontal quadrant point of the cylinder, that is, level with the center of the cylinder.

[0031] Step 3. Establish measurement benchmarks:

[0032] First reference: Move the radial trolley on the radial track, turn on the laser, and adjust the laser beam of the laser to be on the same horizontal plane as the center of the cylinder and the opening of the cylinder through the first linear module; then move the measuring emission mechanism to the non-opening side of the cylinder, and attach the target ruler to the non-opening side of the cylinder, adjust the height and angle of the laser so that the laser beam is attached to the outer wall of the cylinder, and record this position as the reference reference for the horizontal diameter of the outer wall of the cylinder, thus determining the first reference;

[0033] Second reference: Measure the diameter of the cylinder, and use the outer wall diameter of the cylinder as a reference to determine the detection reference value; move the measuring and transmitting mechanism towards the center of the cylinder to the opening side of the cylinder, with the telescopic block fitting against the outer wall of the opening side of the cylinder, adjust the laser beam of the laser so that its spot coincides with the center of the target mirror, and record this position as the measurement reference on the opening side of the cylinder to determine the second reference;

[0034] Step 4. Parameter setting: Referring to the value of the second reference point and the standard fixed value, and based on the theoretical value of the outer wall diameter of the cylinder, determine the limit misalignment amount as the alarm parameter value. If the measured value exceeds this range, the control panel will issue an alarm prompt.

[0035] Step 5. Scanning Measurement:

[0036] Adjust the measuring receiving mechanism to ensure that the telescopic block is horizontal with the opening line on the opening side of the cylinder, and measure the misalignment of the upper and lower opening lines respectively;

[0037] Mark the opening line of the cylinder at intervals as a reference for the measurement position; at each measurement point, move the measuring receiving mechanism to the measurement position and move the telescopic block to fit the opening line of the cylinder; move the measuring emitting mechanism so that the laser beam spot of the laser is coincident with the receiving point of the target mirror spot on the telescopic block, and record the position value at this time. The difference between this value and the value of the second reference point is the misalignment amount at this point; in this way, measure the misalignment amount at each opening line position.

[0038] Step 6. Data Processing and Output: Statistically determine the radial position of each measurement point, calculate the actual misalignment at that point, display the data in real time, generate a graph, store and export the inspection report.

[0039] Positive effects:

[0040] The technical solutions provided in this application embodiment have at least the following technical effects or advantages:

[0041] 1. High precision and high automation: Utilizing a combination of laser collimation and photoelectric target mirror sensing, it replaces manual visual inspection and caliper measurement, eliminating human error and ensuring high measurement accuracy. The trolley is motor-driven, enabling automated positioning and scanning, resulting in fast measurement speed.

[0042] 2. Strong adaptability: The adjustable design of the radial / axial rails, the height adjustment capability of the linear module, and the modular rail system enable this device to flexibly adapt to the measurement needs of cylinders with different diameters, lengths, and center heights.

[0043] 3. Data-driven management: The entire measurement process is digitally controlled by the console. Measurement data is automatically collected, calculated, and stored, and can generate visual reports for easy quality traceability and analysis.

[0044] 4. Safe and efficient: Measurement personnel do not need to enter the cylinder or perform tedious manual measurements at heights, which greatly reduces labor intensity and safety risks, making it particularly suitable for efficient batch testing of large and heavy cylinders.

[0045] 5. Comprehensive functions: It can not only measure the misalignment on one side, but also easily measure the misalignment on the upper and lower sides through method settings, and provides an out-of-tolerance alarm function, fully meeting the requirements of process quality monitoring.

[0046] It is suitable for use as a device and method for measuring misalignment of cylinder openings. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is the southeast isometric view of this embodiment;

[0049] Figure 2 This is the isometric drawing of the southwest region in this embodiment;

[0050] Figure 3 This is the front view of this embodiment;

[0051] Figure 4 This is a top view of this embodiment;

[0052] Figure 5 This is a side view of this embodiment;

[0053] Figure 6 Isometric drawing of the radial pulley southeast;

[0054] Figure 7 Isometric drawing of the radial pulley southwest;

[0055] Figure 8 Isometric drawing of the southeast side of the launch mechanism;

[0056] Figure 9 Isometric drawing of the southwest side of the launch mechanism;

[0057] Figure 10 To measure the front view of the launching mechanism;

[0058] Figure 11 A top view of the measuring launch mechanism;

[0059] Figure 12 To measure the side view of the launching mechanism;

[0060] Figure 13 This is an isometric view of section AA in this embodiment;

[0061] Figure 14 Isometric drawing of the southeast axial track;

[0062] Figure 15 Isometric drawing of the southwest axial track;

[0063] Figure 16 This is the main view of the axial track;

[0064] Figure 17 This is an isometric view of section BB in this embodiment;

[0065] Figure 18 Isometric drawing of the southeast side of the measuring receiving mechanism;

[0066] Figure 19 Isometric drawing of the northeastern region for measuring the receiving mechanism;

[0067] Figure 20 This is the front view of the measuring receiving mechanism;

[0068] Figure 21 Top view of the measuring receiving mechanism;

[0069] Figure 22 Side view of the measuring receiving mechanism;

[0070] Figure 23 This is an isometric view of the CC section in this embodiment;

[0071] Figure 24 Isometric drawing of the southeast side of the track regulator;

[0072] Figure 25 Isometric drawing of the southwest section of the track regulator;

[0073] Figure 26 Southeast front view of the track regulator;

[0074] Figure 27 Top view of the track adjuster;

[0075] Figure 28 This is an isometric view of the DD section in this embodiment;

[0076] Figure 29 This is an isometric view of the EE section in this embodiment.

[0077] In the picture:

[0078] 100. Idler roller;

[0079] 200. Radial rail; 210. Rail body; 220. Adjustable feet; 230. Casters;

[0080] 300. Radial trolley; 310. First base; 320. First drive motor; 330. First bracket; 340. First linear module; 341. First slider; 350. First pulley;

[0081] 400. Measuring and launching mechanism; 410. Fixing plate; 420. Hinge; 430. Launching base; 431. Adjusting plate; 432. Mounting base; 440. Laser; 450. Support plate; 460. Adjusting handwheel;

[0082] 500. Axial rail, 510. Rail adjuster, 511. Liner, 512. Connecting rail, 513. Adjusting base, 514. Magnetic base, 515. Adjusting bolt;

[0083] 600. Axial trolley; 610. Second base; 620. Second drive motor; 630. Second bracket; 640. Second linear module; 641. Second slider; 650. Connecting seat; 660. Third linear module; 661. Third slider; 670. Second pulley;

[0084] 700. Measuring receiving mechanism; 710. Fixture; 720. Pin; 730. Telescopic block; 740. Locking assembly; 750. Target mirror;

[0085] 800. Console;

[0086] 900. Cylinder body. Detailed Implementation

[0087] 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. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0088] This application provides a device and method for measuring misalignment of cylinder joints, which solves the problem that low measurement accuracy of misalignment of cylinder joints is prone to occur in the prior art, leading to decreased welding quality, increased stress concentration, and thus reduced cylinder performance. In this device, a measurement transmitting mechanism 400 and a measurement receiving mechanism 700 are used to measure the misalignment of cylinder joints.

[0089] According to the instruction manual Figure 1-29As shown, a cylinder misalignment measuring device includes a roller 100, a radial rail 200, a radial trolley 300, a measuring launching mechanism 400, an axial rail 500, an axial trolley 600, a measuring receiving mechanism 700, and a control console 800.

[0090] The idler rollers 100 are symmetrically arranged at the lower part of the cylinder 900 to support the cylinder 900 so that the openings on its opening sides are aligned.

[0091] The radial track 200 is located at the end of the cylinder 900 and is perpendicular to the axis of the cylinder 900;

[0092] The radial trolley 300 sits on the radial track 200 and slides radially along the cylinder 900; it has a first linear module 340, on which a first slider 341 is provided;

[0093] The measuring and emitting mechanism 400 is connected to the first slider 341 and moves up and down with it to adjust its height; a laser 440 is provided in the measuring and emitting mechanism 400 to emit a laser light source to confirm the diameter horizontal quadrant point at the opening side of the cylinder.

[0094] The axial track 500 is located on the side of the cylinder 900 and is parallel to the axis of the cylinder 900;

[0095] An axial trolley 600 sits on an axial track 500 and slides axially along the cylinder 900; it has a second linear module 640, on which a second slider 641 is provided; a connecting seat 650 is connected to the second slider 641, and a third linear module 660 is connected to the connecting seat 650. The third linear module 660 rises and falls with the second slider 641 to adjust its height; a third slider 661 is provided on the third linear module 660.

[0096] The measuring receiving mechanism 700 is connected to the third slider 661 and moves with the third slider 661 to make radial adjustments; a telescopic block 730 is provided at the front end of the measuring receiving mechanism 700 to contact the opening side of the cylinder, and a target mirror 750 is provided on the side of the telescopic block 730 to serve as a reflector to detect the misalignment of the cylinder mating surface.

[0097] The control console 800 is located beside the radial track 200 and is equipped with a data acquisition and processing unit and a display and control system. It receives the status signal of the laser 440 and the spot position signal of the target mirror 750, calculates the misalignment in real time, and displays it on the screen in the form of numbers and charts. The data is saved and exported. At the same time, when the misalignment exceeds the standard value, an alarm display is provided.

[0098] In this system, a target ruler is provided on the non-open side of the cylinder 900 to contact the outer wall of the cylinder. The laser beam emitted by the laser 440 is in contact with the horizontal quadrant point of the outer wall diameter of the cylinder 900, which serves as the first measurement reference. The measuring emission mechanism 400 is translated radially along the cylinder 900, and the telescopic block 730 of the measuring receiving mechanism 700 contacts the horizontal quadrant point of the outer wall diameter on the open side of the cylinder 900. When the laser beam spot of the laser 440 coincides with the spot receiving point of the target mirror 750 on the telescopic block 730, it serves as the second measurement reference.

[0099] In this embodiment, the first linear module 340, the second linear module 640, and the third linear module 660 are synchronous belt type linear slides, which realize linear motion through belt drive. The first linear module 340, the second linear module 640 are FBL80, and the third linear module 660 is FBL60.

[0100] As a standard technical option, see the appendix to the instruction manual. Figure 7 The radial track 200 includes a track body 210. Adjustable feet 220 are evenly distributed around the bottom of the track body 210 to adjust the height of the radial track 200 to adapt to cylinders 900 of different specifications. Casters 230 are also provided at the bottom of the track body 210 to facilitate the handling of the radial track 200.

[0101] To ensure the stability of the structure in this embodiment, please refer to the appendix to the specification. Figure 7 The radial trolley 300 includes a first base 310, a first drive motor 320, a first bracket 330, a first linear module 340, and a first pulley 350;

[0102] The first base 310 is a planar frame;

[0103] The first pulleys 350 are evenly distributed around the bottom of the first base 310 and slide along the radial track 200;

[0104] The first drive motor 320 is connected to the first pulley 350 and drives the first pulley 350 to rotate, thereby providing power for the radial movement of the radial trolley 300.

[0105] The first bracket 330 is mounted on the first base 310 to form a truss support structure;

[0106] The first linear module 340 is connected to the first bracket 330, so that it stands vertically on the first base 310. The height position of the first linear module 340 can be adjusted by screw connection to adapt to the needs of different cylinder 900 center heights. A first slider 341 is provided on the first linear module 340. When the first linear module 340 has input, the first slider 341 makes vertical reciprocating linear motion.

[0107] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0108] Since the first base 310 is screwed to the first linear module 340 via the first bracket 330, the first linear module 340 can adapt to different center heights of the cylinder 900.

[0109] To further ensure the stability of the structure in this embodiment, please refer to the appendix to the specification. Figure 8-13 The measuring and transmitting mechanism 400 includes a fixed plate 410, a hinge 420, a transmitter base 430, a laser 440, a support plate 450, and an adjusting handwheel 460.

[0110] Laser 440 is the measurement component;

[0111] The fixing plate 410 is a rectangular plate, and the first slider 341 is connected to one side;

[0112] The hinge 420 is located on the other side of the fixed plate 410, and one end of the hinge 420 is connected to the fixed plate 410.

[0113] The transmitter 430 is a modular structure, including an adjustment plate 431 and a mounting base 432; the adjustment plate 431 is a rectangular plate and is connected to the other end of the hinge 420; the mounting base 432 is fixed on the adjustment plate 431 and is used to assemble the laser 440.

[0114] The support plate 450 is a structural plate, fixed on the lower part of the hinge 420 on the fixed plate 410;

[0115] The adjusting handwheel 460 is connected to the support plate 450 by bolts, with the top of the bolts abutting against the lower surface of the adjusting plate 431;

[0116] The adjusting plate 431 and the fixed plate 410 are rotatably connected by a hinge 420, which is a spring hinge. The adjusting plate 431 is then extended outward. By rotating the adjusting handwheel 460, the adjusting plate 431 is lifted, thereby adjusting the beam angle of the laser emitted by the laser 440.

[0117] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0118] Since the laser 440 is assembled in the mounting base 432, and the mounting base 432 is fixed to the adjusting plate 431, and the adjusting plate 431 is rotatably connected by the hinge 420, the hinge 420 acts as a spring hinge. When the bolt of the adjusting handwheel 460 lifts the adjusting plate 431, tension can be generated, thereby maintaining the stability of the laser 440 and adjusting the installation angle of the laser 440.

[0119] As a standard technical option, see the appendix to the instruction manual. Figure 14The axial rail 500 is laid on the working platform and is composed of multiple sections connected in series to meet the axial length requirements of the cylinder 900; the axial rails 500 are connected and fixed by rail adjusters 510.

[0120] To optimize the structure of this embodiment, please refer to the appendix to the specification. Figure 15 and instruction manual Figure 24-29 The track adjuster 510 includes a liner 511, a connecting track 512, an adjusting base 513, a magnetic base 514, and an adjusting bolt 515;

[0121] Liner 511 is used to connect the axial rails 500 at both ends;

[0122] The connecting rail 512 is fitted onto the liner 511 to form a transition between the axial rails 500;

[0123] The adjusting base 513 is a frame structure and is connected to the side of the connecting rail 512 to support the connecting rail 512 and the liner 511.

[0124] The bottom of the magnetic base 514 rests on the working platform and is stored in the adjusting base 513 for fixing the track adjuster 510;

[0125] The adjusting bolt 515 is screwed onto the top of the adjusting base 513, and the bottom of the adjusting bolt 515 is pressed down on the top of the magnetic base 514. By rotating the adjusting bolt 515, the height of the connecting rail 512 is adjusted, thereby leveling the multi-segment axial rail 500 to adapt to the needs of cylinders 900 of different lengths.

[0126] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0127] Because a track adjuster 510 is provided between the axial tracks 500, and the track adjuster 510 is fastened to the working platform by a magnetic seat 514, and the height of the connecting track 512 is adjusted by adjusting bolts 515, the multiple axial tracks 500 can be leveled to form a straight extended slide rail.

[0128] To further optimize the structure of this embodiment, please refer to the appendix to the specification. Figure 14-17 The axial trolley 600 includes a second base 610, a second drive motor 620, a second bracket 630, a second linear module 640, a connecting seat 650, a third linear module 660, and a second pulley 670.

[0129] The second base 610 is a flat frame;

[0130] The second pulleys 670 are evenly distributed around the bottom of the second base 610 and slide along the axial track 500.

[0131] The second drive motor 620 is connected to the second pulley 670 and drives the second pulley 670 to rotate, thereby providing power for the axial movement of the axial trolley 600.

[0132] The second bracket 630 is mounted on the second base 610 to form a truss support structure;

[0133] The second linear module 640 is connected to the second bracket 630, so that it stands vertically on the second base 610. The height position of the second linear module 640 can be adjusted by screw connection to meet the needs of different cylinder 900 center heights. A second slider 641 is provided on the second linear module 640. When the second linear module 640 has input, the second slider 641 makes vertical reciprocating linear motion.

[0134] The connecting seat 650 is an L-shaped structural component, with the second slider 641 connected to one side;

[0135] The third linear module 660 is connected to the other side of the connecting seat 650, and is perpendicular to the second linear module 640 and moves up and down with it; a third slider 661 is provided on the third linear module 660, and when the third linear module 660 has input, the third slider 661 makes radial reciprocating linear motion.

[0136] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0137] Since the axial trolley 600 is equipped with a second linear module 640 and a third linear module 660, and the second linear module 640 and the third linear module 660 are connected by a connecting seat 650 to form an interlaced vertical structure, the third linear module 660 can adjust its height along with the second linear module 640 to meet the needs of different cylinder 900 center heights; at the same time, the third linear module 660 can perform radial reciprocating linear motion through the third slider 661 to measure the misalignment of the cylinder 900.

[0138] To further optimize the structure of this embodiment, please refer to the appendix to the specification. Figure 18-23 The measurement receiving mechanism 700 includes a fixed frame 710, a pin 720, a telescopic block 730, a locking assembly 740, and a target mirror 750.

[0139] The fixing frame 710 is a cantilever frame structure and is fixed on the third slider 661;

[0140] One end of the pin 720 is fixed in the fixing bracket 710, and a spring is fitted on the pin 720;

[0141] The telescopic block 730 is a block structure. The telescopic block 730 is assembled on the pin 720 and stored in the cantilever port of the fixing frame 710. The telescopic block 730 can extend out of the cantilever port to fit the opening side of the cylinder 900, so that the telescopic block 730 is elastically pressed against the outer wall of the cylinder 900 by the pin 720.

[0142] The locking assembly 740 is used to lock and fix the telescopic block 730 behind the spring of the compression pin 720, to prevent the telescopic block 730 from disengaging from the pin 720 and from retracting during measurement;

[0143] The target mirror 750 is located on the side of the telescopic block 730 facing the measurement and emission mechanism 400, and is used to cooperate with the laser 440 to measure the misalignment.

[0144] Preferably, there are two pins 720, which are connected to the telescopic block 730 in an alternating manner to improve the balance and stability of the telescopic block 730.

[0145] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0146] Since the front end of the fixed frame 710 is provided with a telescopic block 730 that contacts the opening side of the cylinder 900, and the side of the telescopic block 730 is provided with a target mirror 750, when the telescopic block 730 is in contact with the opening side of the cylinder 900, the target mirror 750 can cooperate with the laser 440 to measure the misalignment.

[0147] The working process of this embodiment:

[0148] A method for measuring misalignment of cylinder openings includes the following steps:

[0149] Step 1. Arrangement: Lay radial rails 200 and axial rails 500 next to the cylinder 900 respectively, and assemble radial trolleys 300 and axial trolleys 600 respectively to ensure the parallelism and flatness of the two.

[0150] Step 2. Leveling: Adjust the cylinder 900 to be level with the radial track 200 and the axial track 500 by using the roller 100, and keep the opening of the cylinder 900 at the horizontal quadrant point of the cylinder 900, that is, level with the center of the cylinder 900.

[0151] Step 3. Establish measurement benchmarks:

[0152] First reference: Move the radial trolley 300 on the radial track 200, turn on the laser 440, and adjust the laser beam of the laser 440 to be on the same horizontal plane as the center of the cylinder 900 and the opening of the cylinder 900 through the first linear module 340; then move the measuring emission mechanism 400 to the non-opening side of the cylinder 900, and attach the target ruler to the non-opening side of the cylinder 900. Adjust the height and angle of the laser 440 so that the laser beam is attached to the outer wall of the cylinder 900. Record this position as the reference reference for the horizontal diameter of the outer wall of the cylinder 900, and determine the first reference.

[0153] Second reference: Measure the diameter of the cylinder 900, and use the outer wall diameter of the cylinder 900 as a reference to determine the detection reference value; move the measuring and transmitting mechanism 400 towards the center of the cylinder 900 to the opening side of the cylinder 900, with the telescopic block 730 fitting against the outer wall of the opening side of the cylinder 900, and adjust the laser beam of the laser 440 so that its spot coincides with the center of the target mirror 750. Record this position as the measurement reference for the opening side of the cylinder 900, and determine the second reference;

[0154] Step 4. Parameter setting: Referring to the value of the second reference point and the standard fixed value, and based on the theoretical value of the outer wall diameter of the cylinder 900, determine the limit misalignment amount as the alarm parameter value. If the measured value exceeds this range, the control panel 800 will issue an alarm prompt.

[0155] Step 5. Scanning Measurement:

[0156] Adjust the measuring receiving mechanism 700 to ensure that the telescopic block 730 is horizontal with the opening line on the opening side of the cylinder 900, and measure the misalignment of the upper and lower opening lines respectively.

[0157] Referring to the technical requirements of cylinder 900, mark the opening line of cylinder 900 at intervals as a reference for measurement positions;

[0158] At each measurement point, the measuring receiving mechanism 700 is moved to the measurement position, and the telescopic block 730 is moved to fit against the opening line of the cylinder 900; the measuring transmitting mechanism 400 is moved so that the laser beam spot of the laser 440 coincides with the receiving point of the target mirror 750 on the telescopic block 730, and the position value at this time is recorded. The difference between this value and the value of the second reference point is the misalignment amount at this point; and so on, the misalignment amount at each opening line position is measured.

[0159] Step 6. Data Processing and Output: Statistically determine the radial position of each measurement point, calculate the actual misalignment at that point, display the data in real time, generate a graph, store and export the inspection report.

[0160] It is worth noting that all content not described in detail in the specification belongs to existing technology known to those skilled in the art, and the model parameters of the first drive motor 320, the second drive motor 620, the first linear module 340, the second linear module 640, the third linear module 660, and the laser 440 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figures because they belong to existing technology, and will not be described further here. The description of this invention is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0161] Finally, it should be noted that:

[0162] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for measuring misalignment of cylinder openings, characterized in that: It includes a roller (100), a radial track (200), a radial trolley (300), a measuring launching mechanism (400), an axial track (500), an axial trolley (600), a measuring receiving mechanism (700), and a control console (800). The idler rollers (100) are symmetrically arranged at the lower part of the cylinder (900); The radial track (200) is located at the end of the cylinder (900) and is perpendicular to the axis of the cylinder (900); The radial trolley (300) sits on the radial track (200) and slides radially along the cylinder (900); it has a first linear module (340) on which a first slider (341) is provided; The measuring emission mechanism (400) is connected to the first slider (341) and moves up and down with it. A laser (440) is provided in the measuring emission mechanism (400) to emit a laser light source and confirm the diameter horizontal quadrant point at the opening side of the cylinder. The measuring and transmitting mechanism (400) includes a fixed plate (410), a hinge (420), a transmitter base (430), a laser (440), a support plate (450), and an adjusting handwheel (460). The laser (440) is the measurement component; A first slider (341) is connected to one side of the fixed plate (410); The hinge (420) is located on the other side of the fixed plate (410), and one end of the hinge (420) is connected to the fixed plate (410); The launcher (430) includes an adjustment plate (431) and a mounting base (432); the adjustment plate (431) is connected to the other end of the hinge (420); the mounting base (432) is fixed on the adjustment plate (431) and is used to assemble the laser (440). The support plate (450) is fixed to the lower part of the hinge (420) on the fixed plate (410); The adjusting handwheel (460) is connected to the support plate (450) by bolts, with the top of the bolts abutting against the lower surface of the adjusting plate (431); The adjusting plate (431) and the fixed plate (410) are rotatably connected by a hinge (420), and the hinge (420) is a spring hinge. The adjusting plate (431) is then extended outward. By rotating the adjusting handwheel (460), the adjusting plate (431) is lifted, and the beam angle of the laser emitted by the laser (440) is adjusted. The axial track (500) is located on the side of the cylinder (900) and is parallel to the axis of the cylinder (900); An axial trolley (600) sits on an axial track (500) and slides axially along the cylinder (900); it has a second linear module (640) and a second slider (641) is provided on the second linear module (640); a connecting seat (650) is connected to the second slider (641), and a third linear module (660) is connected on the connecting seat (650). The third linear module (660) rises and falls with the second slider (641), and a third slider (661) is provided on the third linear module (660). The axial trolley (600) includes a second base (610), a second drive motor (620), a second bracket (630), a second linear module (640), a connecting seat (650), a third linear module (660), and a second pulley (670). The second base (610) is a planar frame; The second pulleys (670) are evenly distributed around the bottom of the second base (610) and slide along the axial track (500); The second drive motor (620) is connected to the second pulley (670) and drives the second pulley (670) to rotate, thereby providing power for the axial movement of the axial trolley (600); The second bracket (630) is mounted on the second base (610) to form a truss support structure; The second linear module (640) is connected to the second bracket (630) so that it stands vertically on the second base (610). The height of the second linear module (640) can be adjusted by screw connection to meet the needs of different cylinder (900) center heights. A second slider (641) is provided on the second linear module (640). When the second linear module (640) has input, the second slider (641) makes vertical reciprocating linear motion. The second slider (641) is connected to one side of the connecting seat (650); The third linear module (660) is connected to the other side of the connecting seat (650), and is perpendicular to the second linear module (640) and moves up and down with it; a third slider (661) is provided on the third linear module (660), and when the third linear module (660) has input, the third slider (661) makes radial reciprocating linear motion; The measuring receiving mechanism (700) is connected to the third slider (661) and moves along with the third slider (661); a telescopic block (730) is provided at the front end of the measuring receiving mechanism (700) to contact the opening side of the cylinder, and a target mirror (750) is provided on the side of the telescopic block (730). The measurement receiving mechanism (700) includes a fixed frame (710), a pin (720), a telescopic block (730), a locking assembly (740), and a target mirror (750). The fixing bracket (710) is fixed on the third slider (661); One end of the pin (720) is fixed in the fixed frame (710), and a spring is fitted on the pin (720); The telescopic block (730) is mounted on the pin (720) and stored in the cantilever port of the fixing frame (710). The telescopic block (730) can extend out of the cantilever port to fit the opening side of the cylinder (900), so that the telescopic block (730) is elastically pressed against the outer wall of the cylinder (900) by the pin (720). The locking assembly (740) is used to lock and fix the telescopic block (730) behind the spring of the compression pin (720) to prevent the telescopic block (730) from disengaging from the pin (720) and from retracting during measurement; The target mirror (750) is located on the side of the telescopic block (730) facing the measuring emission mechanism (400) and is used to cooperate with the laser (440) to measure the misalignment. The control console (800) is located next to the radial track (200) and is equipped with a data acquisition and processing unit and a display and control system. It receives the status signal of the laser (440) and the spot position signal of the target mirror (750), calculates the misalignment in real time, and displays it on the screen in the form of numbers and charts. The data is saved and exported. At the same time, when the misalignment exceeds the standard value, an alarm display is provided.

2. The cylinder misalignment measuring device according to claim 1, characterized in that: The radial track (200) includes a track body (210), with adjustable feet (220) evenly distributed around the bottom of the track body (210), and casters (230) also provided at the bottom of the track body (210).

3. The cylinder misalignment measuring device according to claim 1, characterized in that: The radial trolley (300) includes a first base (310), a first drive motor (320), a first bracket (330), a first linear module (340), and a first pulley (350). The first base (310) is a planar frame; The first pulleys (350) are evenly distributed around the bottom of the first base (310) and slide along the radial track (200); The first drive motor (320) is connected to the first pulley (350) and drives the first pulley (350) to rotate; The first bracket (330) is mounted on the first base (310) to form a truss support structure; The first linear module (340) is connected to the first bracket (330) so that it stands vertically on the first base (310) and the height position of the first linear module (340) is adjusted by screw connection; a first slider (341) is provided on the first linear module (340) and when the first linear module (340) has input, the first slider (341) makes vertical reciprocating linear motion.

4. The cylinder misalignment measuring device according to claim 1, characterized in that: The axial rails (500) are laid on the working platform and are composed of multiple sections connected in series to meet the axial length requirements of the cylinder (900); the axial rails (500) are connected and fixed by rail adjusters (510).

5. The cylinder misalignment measuring device according to claim 4, characterized in that: The track adjuster (510) includes a liner (511), a connecting track (512), an adjusting base (513), a magnetic base (514), and an adjusting bolt (515). The liner (511) is used to connect the axial rails (500) at both ends. The connecting rail (512) is fitted onto the liner (511) to form a transition between the axial rails (500); The adjusting base (513) is connected to the side of the connecting rail (512) to support the connecting rail (512) and the liner (511). The bottom of the magnetic base (514) rests on the working platform and is stored in the adjusting base (513) for fixing the track adjuster (510); The adjusting bolt (515) is screwed onto the top of the adjusting base (513), and the bottom of the adjusting bolt (515) is pressed down on the top of the magnetic base (514). By rotating the adjusting bolt (515), the height of the connecting rail (512) is adjusted, thereby leveling the multi-section axial rail (500) to adapt to the needs of cylinders (900) of different lengths.

6. The cylinder misalignment measuring device according to claim 1, characterized in that: There are two pins (720), which are interleaved with the telescopic block (730).

7. A method for measuring misalignment of cylinder openings, using the cylinder opening misalignment measuring device described in any one of claims 1-6. Its characteristics are: Includes the following steps: Step 1. Arrangement: Lay radial rails (200) and axial rails (500) next to the cylinder (900) respectively, and assemble radial trolleys (300) and axial trolleys (600) respectively to ensure the parallelism and flatness of the two; Step 2. Leveling: Adjust the cylinder (900) to be level with the radial track (200) and the axial track (500) by using the roller (100), and keep the opening of the cylinder (900) at the horizontal quadrant point of the cylinder (900), that is, keep it level with the center of the cylinder (900); Step 3. Establish measurement benchmarks: First reference: Move the radial trolley (300) on the radial track (200), turn on the laser (440), and adjust the laser beam of the laser (440) to be on the same horizontal plane as the center of the cylinder (900) and the opening of the cylinder (900) through the first linear module (340); then move the measuring emission mechanism (400) to the non-opening side of the cylinder (900), and attach the target ruler to the non-opening side of the cylinder (900), adjust the height and angle of the laser (440) so that the laser beam is attached to the outer wall of the cylinder (900), and record this position as the reference reference for the horizontal diameter of the outer wall of the cylinder (900), and determine the first reference; Second reference: Measure the diameter of the cylinder (900), and use the outer wall diameter of the cylinder (900) as a reference to determine the detection reference value; move the measuring emission mechanism (400) towards the center of the cylinder (900) to the opening side of the cylinder (900), and the telescopic block (730) fits against the outer wall of the opening side of the cylinder (900). Adjust the laser beam of the laser (440) so that its spot coincides with the center of the target mirror (750), and record this position as the measurement reference of the opening side of the cylinder (900) to determine the second reference; Step 4. Parameter setting: Referring to the value of the second reference point and the standard fixed value, and based on the theoretical value of the outer wall diameter of the cylinder (900), determine the limit misalignment amount as the alarm parameter value. If the measured value exceeds this range, the control console (800) will issue an alarm prompt. Step 5. Scanning Measurement: Adjust the measuring receiving mechanism (700) to ensure that the opening line of the telescopic block (730) and the opening side of the cylinder (900) are horizontal, and measure the misalignment of the upper and lower opening lines respectively; Mark the opening line of the cylinder (900) at intervals as a reference for the measurement position; at each measurement point, move the measurement receiving mechanism (700) to the measurement position, and move the telescopic block (730) to fit with the opening line of the cylinder (900); move the measurement emitting mechanism (400) so that the laser beam spot of the laser (440) coincides with the spot receiving point of the target mirror (750) on the telescopic block (730), and record the position value at this time. The difference between this value and the value of the second reference point is the misalignment amount at this point; and so on, measure the misalignment amount at each opening line position. Step 6. Data Processing and Output: Statistically determine the radial position of each measurement point, calculate the actual misalignment at that point, display the data in real time, generate a graph, store and export the inspection report.

Images