Ship flat plate laser scanning measurement device and method

Abstract

The invention provides a ship flat plate laser scanning measurement device and method. Comprising the following steps: 1, initialization operation: sending an initialization instruction through a control system, and enabling a mobile platform to move in a direction far away from a host until the edge of the mobile platform completely leaves a detection area and reaches a preset initialization position; 2, part placement: placing the flat plate part on a mobile platform 8, and starting detection operation; 3, part detection: sending out a detection instruction through the control system, moving the mobile platform in a direction close to the host, starting to enter a detection area by the flat plate part on the mobile platform, performing data acquisition by the host, starting to sample by the laser probe arranged on the cantilever, and obtaining boundary dimension data of the flat plate part by the host; 4, digitalizing a detection result: after the flat plate part leaves the detection area, stopping moving the mobile platform, enabling the host to enter a standby mode, and storing size data collected by the host in a database; and taking down the flat plate part from the mobile platform, and detecting the flat plate part in the next round.

Description

Technical Field

[0001] The invention relates to flat plate measurement in the field of ships, and in particular to a ship flat plate laser scanning measurement device and method. Background Art

[0002] At present, large-scale digital parts measurement technology is widely used in the automotive and aerospace fields. Laser scanning measurement equipment or optical inspection equipment is mainly used to measure stamping parts and assembly parts. In the field of shipbuilding, the degree of digitalization of parts inspection is relatively low, and traditional inspection modes such as templates and rulers are still widely used.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application: There is a significant gap between traditional mode detection and digital measurement modes such as laser scanning measurement in terms of accuracy and speed. Laser scanning measurement technology is generally used for small-sized parts detection, while in the field of shipbuilding, the parts are large in scale, with the maximum size exceeding 10m, and the existing laser scanning measurement devices cannot meet the needs. In order to solve the limitations of existing technologies in the transportation and measurement of large flat parts, this patent is specially developed. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a ship flat panel laser scanning measurement device and method for the problems of low measurement accuracy, slow speed and low degree of digitization of ship flat panel. The method uses a ship flat panel laser scanning measurement device, a laser probe detects the surface of the part and transmits the data to the host, and the host generates a detection report to solve the technical problems of ship flat panel measurement.

[0005] The solution adopted by the embodiment of the present application to solve the technical problem is: A ship flat-plate laser scanning measurement device, comprising a detection platform, a detection device and a detection structure; The detection platform includes a mobile platform and a platform track. The platform track is laid on the working ground. The mobile platform is located on the platform track arranged in parallel. The flat parts are placed on the mobile platform, and the mobile platform achieves stable movement through the platform track. The detection structure includes pillars, beams and cantilevers. The pillars are located on the working ground and are symmetrically arranged on both sides of the platform track. A beam spanning the platform track is built on the top of the two pillars. A cantilever is arranged in the middle of the beam, and the cantilever extends downward to the mobile platform. The detection equipment includes a host and a laser probe. The host is set on the beam, and the laser probe is assembled at the lower end of the cantilever. The laser probe is used to detect the surface of the flat parts and transmit the data to the host, and then the host generates a detection report. Among them, the flat parts are placed on the mobile platform and move linearly through the platform track. The laser probe scans the shape of the flat parts, and the size data of the flat parts are obtained through the host.

[0006] In order to further solve the technical problem to be solved by the present invention, the present invention provides a ship flat-plate laser scanning measurement method, a ship flat-plate laser scanning measurement method, using a ship flat-plate laser scanning measurement device, comprising the following steps: The first step is to initialize the job: The control system issues an initialization command, at which point the host receives the command and starts, and the mobile platform moves away from the host until the edge of the mobile platform completely leaves the detection area and reaches a predetermined initialization position; Step 2: Parts placement: Place the flat plate parts on the mobile platform and check whether the flat plate parts are completely placed in the mobile platform. After they are completely and stably placed, start the inspection operation; Step 3: Parts inspection: The control system issues a detection command, the mobile platform moves toward the host, the flat plate parts on the mobile platform begin to enter the detection area, the host starts data collection, the laser probe placed on the cantilever starts sampling, and the host obtains the shape and size data of the flat plate parts; Step 4: Digitalization of test results: After the flat part leaves the inspection area, the mobile platform stops moving, the host enters standby mode, and the dimension data collected by the host is stored in the database; Remove the flat plate parts from the mobile platform and repeat the first step to carry out the next round of flat plate parts inspection.

[0007] Positive effects: The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: 1. The movable detection platform facilitates the loading and transportation of large flat parts, simplifies the structural complexity, and realizes large-scale measurement of ship flat parts.

[0008] 2. In terms of accuracy, the number of manual measurement points is at most dozens, while laser scanning measurement technology performs continuous sampling, and the data samples differ by several orders of magnitude. The probe accuracy is also higher than that of manual measurement, which improves the detection accuracy of large flat parts of ships.

[0009] 3. In terms of speed, traditional methods require manual movement to multiple measuring points, while laser scanning measurement technology only requires relative movement between the parts and the probe. The movement speed is faster than the workers' detection speed, achieving the goal of speeding up the detection of large flat parts on ships.

[0010] 4. Currently, measurement results are saved in paper files, but the reports generated by laser scanning measurement can be printed on paper or stored digitally, thus realizing the digitization of the inspection results of large flat parts of ships.

[0011] The invention is suitable for application as a ship flat-plate laser scanning measurement device and method. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of this embodiment; Figure 2 This is the front view of the present embodiment; Figure 3 It is a top view of this embodiment; Figure 4 It is a side view of this embodiment.

[0014] In the figure, 1. working ground, 2. pillars, 3. beams, 4. main machine, 5. cantilever, 6. laser probe, 7. flat parts, 8. mobile platform, 9. platform track. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill 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, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0016] As shown in the figure, a ship flat-bed laser scanning measurement device includes a detection platform, a detection device and a detection structure; The detection platform includes a mobile platform 8 and a platform track 9. The platform track 9 is laid on the working ground 1. The mobile platform 8 is located on the platform track 9 arranged in parallel. The flat part 7 is placed on the mobile platform 8. The mobile platform 8 realizes stable movement through the platform track 9. In this embodiment, the mobile platform 8 can measure the length range of the flat part 7 to be 0.01-11m, the width range of the flat part 7 to be 0.01-3.5m, the thickness range to be 0.001-0.2m, and the maximum load to be 40T; The detection structure includes a support column 2, a beam 3 and a cantilever 5; the support column 2 is located on the working ground 1 and is symmetrically arranged on both sides of the platform track 9. A beam 3 crossing the platform track 9 is built on the top of the two support columns 2, and a cantilever 5 is arranged in the middle of the beam 3. The cantilever 5 extends downward and points to the mobile platform 8; The detection device includes a host 4 and a laser probe 6. The host 4 is arranged on the crossbeam 3, and the laser probe is assembled on the lower end of the cantilever 5. The laser probe 6 is used to detect the surface of the flat part 7 and transmit the data to the host 4, and then the host 4 generates a detection report. The flat part 7 is placed on a moving platform 8 and moves linearly through a platform track 9. The laser probe 6 scans the shape of the flat part 7 and obtains the size data of the flat part 7 through the host 4.

[0017] A ship flat-plate laser scanning measurement method, using a ship flat-plate laser scanning measurement device, comprises the following steps: The first step is to initialize the job: The control system issues an initialization command, at which time the host 4 receives the command and starts, and the mobile platform 8 moves away from the host 4 until the edge of the mobile platform 8 completely leaves the detection area and reaches a predetermined initialization position; Step 2: Parts placement: Place the flat plate part 7 on the mobile platform 8, check whether the flat plate part 7 is completely placed in the mobile platform 8, and start the inspection after it is completely and stably placed; Step 3: Parts inspection: The control system issues a detection command, the mobile platform 8 moves toward the host 4, the flat plate part 7 on the mobile platform 8 begins to enter the detection area, the host 4 starts data collection, the laser probe 6 placed on the cantilever 5 starts sampling, and the host 4 obtains the shape and size data of the flat plate part 7; Step 4: Digitalization of test results: After the flat part 7 leaves the detection area, the mobile platform 8 stops moving, the host 4 enters the standby mode, and the dimension data collected by the host 4 is stored in the database; The flat plate part 7 is removed from the mobile platform 8 , and the first step is repeated to carry out the next round of inspection of the flat plate part 7 .

[0018] It is worth noting that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of the mobile platform 8, platform track 9, main unit 4 and laser probe 6 are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0019] Finally, it should be noted that the above is only 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ship flatbed laser scanning measurement device, characterized in that: Including testing platform, testing equipment and testing structure; The detection platform comprises a mobile platform (8) and a platform track (9), wherein the platform track (9) is laid on the working ground (1), the mobile platform (8) is located on the platform track (9) arranged in parallel, the flat plate part (7) is placed on the mobile platform (8), and the mobile platform (8) realizes stable movement through the platform track (9); The detection structure comprises a support (2), a beam (3) and a cantilever (5); the support (2) is located on the working ground (1) and is symmetrically arranged on both sides of the platform track (9); a beam (3) spanning the platform track (9) is built on the top of the two support columns (2); a cantilever (5) is arranged in the middle of the beam (3); the cantilever (5) extends downward and points to the mobile platform (8); The detection device comprises a host (4) and a laser probe (6); the host (4) is arranged on a crossbeam (3), and the laser probe is mounted on the lower end of a cantilever (5); the laser probe (6) is used to detect the surface of a flat part (7) and transmit data to the host (4), and the host (4) generates a detection report; The flat plate part (7) is placed on a moving platform (8) and moves linearly via a platform track (9). The laser probe (6) scans the shape of the flat plate part (7), and the size data of the flat plate part (7) is obtained via a host computer (4).

2. A ship flat-bed laser scanning measurement method, using the ship flat-bed laser scanning measurement device according to claim 1, Its characteristics are: The following steps are involved: The first step is to initialize the job: An initialization command is issued through the control system, at which time the host (4) receives the command and starts, and the mobile platform (8) moves in a direction away from the host (4) until the edge of the mobile platform (8) completely leaves the detection area and reaches a predetermined initialization position; Step 2: Parts placement: Placing the flat plate component (7) on the mobile platform (8), checking whether the flat plate component (7) is completely placed in the mobile platform (8), and starting the inspection operation after the flat plate component (7) is completely placed and stable; Step 3: Parts inspection: A detection command is issued by the control system, the mobile platform (8) moves toward the host (4), the flat plate part (7) on the mobile platform (8) begins to enter the detection area, the host (4) starts data collection, the laser probe (6) placed on the cantilever (5) begins sampling, and the host (4) obtains the shape and size data of the flat plate part (7); Step 4: Digitalization of test results: After the flat part (7) leaves the detection area, the mobile platform (8) stops moving, the host (4) enters a standby mode, and the dimension data collected by the host (4) is stored in a database; The flat plate part (7) is removed from the mobile platform (8), and the first step is repeated to carry out the next round of inspection of the flat plate part (7).

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