Device and method for measuring flatness of ship bulkhead plate

Abstract

The invention discloses a device for measuring the flatness of a ship bulkhead panel, the device comprises a fixing module, a support module and measuring modules, the fixing module is connected with the support module, the support module rotates around the fixing module, and a plurality of measuring modules are installed on the support module; the fixing module comprises a magnetic attraction base and a connecting column, the middle of the magnetic attraction base is connected with the connecting column, the support module comprises a rotating shaft and connecting rods, the connecting column is sleeved with the rotating shaft, the rotating shaft rotates around the connecting column, the connecting rods are symmetrically arranged on the side face of the rotating shaft, and the measuring module comprises a measuring rod. The connecting rod is provided with a plurality of measuring rods. Through the arrangement of the fixing module and the support module, the function of measuring the flatness of multiple positions of the bulkhead plate at the same time is achieved, the flatness value can be accurately obtained and recorded at the corresponding position of the bulkhead plate, and the flatness correction efficiency is improved through follow-up flatness hot work correction.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and in particular relates to a device and method for measuring the flatness of a ship bulkhead plate. Background Art

[0002] During the shipbuilding process, during the construction of bulkhead steel plates, especially thin plates, a large area of ​​bulkhead plates will be deformed before and after installation due to many factors during the operation process, such as welding of the bulkhead body, welding of outfitting parts, drilling and welding of penetration parts, and hoisting of bulkhead plates. The deformation of the bulkhead will affect the quality of the cabin dressing and the aesthetics of the construction. Therefore, after the construction of the hull structure is completed, the flatness of the bulkhead plates will be measured and pyrotechnically corrected until it meets the acceptance standards. Generally, pyrotechnic correction construction workers rely on on-site visual inspection and construction experience to adjust the flatness, which has poor accuracy and low flatness correction efficiency. Summary of the Invention

[0003] The object of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide a device and method for measuring the flatness of a ship bulkhead plate. The device and method of the present invention realize the function of simultaneously measuring the flatness of multiple locations of a bulkhead plate through the arrangement of a fixing module and a bracket module, and can accurately obtain the flatness value and record it at the corresponding position of the bulkhead plate, and combine it with the subsequent pyrotechnic correction of the flatness, thereby improving the efficiency of the flatness correction.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] A device for measuring the flatness of ship bulkhead plates, the device comprising a fixing module, a bracket module and a measuring module, the fixing module being connected to the bracket module, the bracket module rotating around the fixing module, and a plurality of measuring modules being mounted on the bracket module; the fixing module comprising a magnetic base and a connecting column, the middle portion of the magnetic base being connected to the connecting column, the bracket module comprising a rotating shaft and a connecting rod, the rotating shaft being sleeved on the connecting column, the rotating shaft rotating around the connecting column, connecting rods being symmetrically arranged on the sides of the rotating shaft, the measuring module comprising a measuring rod, and a plurality of measuring rods being mounted on the connecting rod.

[0006] Furthermore, the magnetic base is truncated cone-shaped as a whole, the side angle of the magnetic base is 30 degrees, the lower end of the connecting column is vertically connected to the upper end of the magnetic base, and the side surface of the upper end of the connecting column is provided with a thread;

[0007] Furthermore, a through hole is provided in the middle of the rotating shaft, an inclination is provided at the bottom of the rotating shaft, the inclination angle of the bottom of the rotating shaft is 30°, the upper part of the rotating shaft is horizontally arranged, and a connecting rod is symmetrically provided on the upper end of the side of the rotating shaft. When the rotating shaft is sleeved on the connecting column, the inclination angle of the bottom of the rotating shaft is connected to the inclination angle of the side of the magnetic base, and the connecting rod is vertically connected to the side of the rotating shaft.

[0008] Furthermore, the length of the connecting rod is 2000 mm, and four measuring holes are evenly arranged on the connecting rod, and measuring rods are installed in the measuring holes respectively, and the inner diameter of the measuring holes is 40 mm; the upper and lower ends of the measuring holes are respectively provided with pressure covers, one end of the pressure cover is connected and fixed to the end face of the measuring hole, and the other end of the pressure cover extends into the measuring hole.

[0009] Furthermore, the measuring rod is cross-shaped as a whole, the diameter of the measuring rod is 30 mm, a retaining ring is provided on the side of the measuring rod, a scale line is provided on the side of the measuring rod above the retaining ring, the width of the retaining ring is 5 mm, the retaining ring on the measuring rod is connected to the pressure cover at the lower end of the measuring hole, and a spring is provided between the retaining ring and the pressure cover at the upper end of the measuring hole.

[0010] A method for measuring the flatness of a ship bulkhead plate, the method specifically comprising the following steps:

[0011] S1. Prepare a device for measuring the flatness of a ship bulkhead plate, the device comprising a fixing module, a bracket module, and a measuring module, the fixing module being connected to the bracket module, the bracket module rotating around the fixing module, and a plurality of measuring modules being mounted on the bracket module; the fixing module comprising a magnetic base and a connecting column, the middle portion of the magnetic base being connected to the connecting column; the bracket module comprising a rotating shaft and a connecting rod, the rotating shaft being sleeved on the connecting column, the rotating shaft rotating around the connecting column, the connecting rods being symmetrically arranged on the sides of the rotating shaft; the measuring module comprising a measuring rod, on which a plurality of measuring rods are mounted;

[0012] S2, install the fixing module on the bulkhead plate where the flatness is measured, and connect and fix it to the bulkhead plate through the magnetic base;

[0013] S3, install the measuring rod into the measuring hole on the connecting rod, install the bracket module on the connecting column, sleeve the rotating shaft on the connecting column, and screw the nut into the upper end of the connecting column so that the rotating shaft can rotate on the connecting column;

[0014] S4, the bottom of the measuring rod is connected to the bulkhead plate. Depending on the flatness of different locations on the bulkhead plate, the scale value on the upper end of the measuring rod changes. The scale value on each measuring rod on the connecting rod at this time is recorded, which is the deformation value of the measuring position on the bulkhead plate.

[0015] S5, rotate the connecting rod so that the angle between the connecting rod and the original connecting rod is 45° or 90°, and re-record the scale value on each measuring rod on the connecting rod at this time, that is, the deformation value at the measuring position on the bulkhead plate;

[0016] S6. Repeat S4 and S5 to complete the flatness measurement of all areas of the bulkhead plate.

[0017] Based on the above technical solution, the present invention patented a device and method for measuring the flatness of ship bulkhead plates, which has achieved the following technical advantages through practical application:

[0018] 1. The present invention provides a method for measuring the flatness of a ship bulkhead plate. The method realizes the function of simultaneously measuring the flatness of multiple locations of the bulkhead plate through the arrangement of a fixing module and a bracket module. The method can accurately obtain the flatness value and record it in the corresponding position of the bulkhead plate. The method can be combined with the subsequent pyrotechnic correction of the flatness, thereby improving the correction efficiency of the flatness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a top view of a device for measuring the flatness of a ship bulkhead plate in use.

[0020] Figure 2 The present invention is a side view of a device for measuring the flatness of a ship bulkhead plate in use.

[0021] Figure 3 The present invention is a front view of a measuring device used for measuring the flatness of a ship bulkhead plate.

[0022] Figure 4 This is a device for measuring the flatness of ship bulkhead plates in the present invention. Figure 3 AA schematic diagram.

[0023] Figure 5 The present invention is a structural diagram of a measuring rod in a device for measuring the flatness of a ship bulkhead plate. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0025] like Figure 1-5 As shown, a device for measuring the flatness of ship bulkhead plates includes a fixing module, a bracket module and a measuring module, wherein the fixing module is connected to the bracket module, the bracket module rotates around the fixing module, and multiple measuring modules are installed on the bracket module; the fixing module includes a magnetic base 21 and a connecting column 22, the middle part of the magnetic base 21 is connected to the connecting column 22, the bracket module includes a rotating shaft 31 and a connecting rod 32, the rotating shaft 31 is sleeved on the connecting column 22, the rotating shaft 31 rotates around the connecting column 22, and the connecting rods 32 are symmetrically arranged on the side of the rotating shaft 31, the measuring module includes a measuring rod 4, and multiple measuring rods 4 are installed on the connecting rod 32.

[0026] The deformation degree of the bulkhead plate 1 in a certain area can be measured, and the specific data of the unevenness can be detected, so as to achieve the goal of single-person measurement and single-person recording.

[0027] The magnetic base 21 is truncated cone-shaped as a whole, and the side angle of the magnetic base 21 is 30 degrees. The lower end of the connecting column 22 is vertically connected to the upper end of the magnetic base 21, and the upper end side of the connecting column 22 is provided with a thread;

[0028] A through hole is provided in the middle of the rotating shaft 31, and an inclination is provided at the bottom of the rotating shaft 31. The inclination angle of the bottom of the rotating shaft 31 is 30°. The upper part of the rotating shaft 31 is horizontally arranged, and a connecting rod 32 is symmetrically provided on the upper end of the side of the rotating shaft 31. When the rotating shaft 31 is sleeved on the connecting column 22, the inclination angle of the bottom of the rotating shaft 31 is connected to the inclination angle of the side of the magnetic base 21, and the connecting rod 32 is vertically connected to the side of the rotating shaft 31.

[0029] The length of the connecting rod 32 is 2000 mm, and four measuring holes are evenly arranged on the connecting rod 32. Measuring rods 4 are respectively installed in the measuring holes, and the inner diameter of the measuring holes is 40 mm; the upper and lower ends of the measuring holes are respectively provided with pressure covers 51, one end of the pressure cover 51 is connected and fixed to the end face of the measuring hole, and the other end of the pressure cover 51 extends into the measuring hole.

[0030] The measuring rod 4 is cross-shaped as a whole, and the diameter of the measuring rod 4 is 30 mm. A snap ring 41 is provided on the side of the measuring rod 4. A scale line is provided on the side of the measuring rod 4 above the snap ring 41. The width of the snap ring 41 is 5 mm. The snap ring 41 on the measuring rod 4 is connected to the pressure cover 51 at the lower end of the measuring hole, and a spring 52 is provided between the snap ring and the pressure cover 51 at the upper end of the measuring hole.

[0031] Since there are many weld deformation areas of the bulkhead plate 1 on the ship, especially the light surrounding wall plate area of ​​the cabin with relatively thin plate thickness, the bulkhead plate 1 is often uneven due to welding, drilling, hoisting and other reasons, and a large area of ​​pyrotechnic correction is required. Before pyrotechnic correction, it is best to fully measure the area that needs pyrotechnic correction, mark the points after measurement and write the data on the bulkhead, so that on-site construction workers can intuitively understand the degree of convexity of the bulkhead plate 1 and grasp the data that needs pyrotechnic correction. Therefore, the device and method of the present invention can clearly know where to collect and where to release for pyrotechnic correction, greatly improving pyrotechnic efficiency and reducing unnecessary rework.

[0032] A method for measuring the flatness of a ship bulkhead plate, the method specifically comprising the following steps:

[0033] S1. Prepare a device for measuring the flatness of a ship bulkhead plate, the device comprising a fixing module, a bracket module, and a measuring module. The fixing module is connected to the bracket module, the bracket module rotates around the fixing module, and multiple measuring modules are mounted on the bracket module. The fixing module comprises a magnetic base 21 and a connecting post 22, the middle portion of the magnetic base 21 is connected to the connecting post 22, the bracket module comprises a rotating shaft 31 and a connecting rod 32, the rotating shaft 31 is sleeved on the connecting post 22, the rotating shaft 31 rotates around the connecting post 22, and the connecting rods 32 are symmetrically arranged on the sides of the rotating shaft 31. The measuring module comprises a measuring rod 4, and multiple measuring rods 4 are mounted on the connecting rod 32.

[0034] S2, installing a fixing module on the bulkhead plate 1 to be measured for flatness, and connecting and fixing it to the bulkhead plate 1 via a magnetic base 21;

[0035] S3, install the measuring rod 4 into the measuring hole on the connecting rod 32, install the bracket module on the connecting column 22, put the rotating shaft 31 on the connecting column 22, and screw the nut on the upper end of the connecting column 22 so that the rotating shaft 31 can rotate on the connecting column 22;

[0036] S4: The bottom of the measuring rod 4 is connected to the bulkhead plate 1. The scale value on the upper end of the measuring rod 4 changes according to the flatness of different positions of the bulkhead plate 1. The scale value on each measuring rod 4 on the connecting rod 32 at this time is recorded, which is the deformation value of the measuring position on the bulkhead plate 1.

[0037] S5, rotating the connecting rod 32 so that the angle between the connecting rod 32 and the original connecting rod 32 is 45° or 90°, and re-recording the scale value on each measuring rod 4 on the connecting rod 32 at this time, i.e., the deformation value at the measuring position on the bulkhead plate 1;

[0038] S6: Repeat S4 and S5 to complete the flatness measurement of all areas of bulkhead plate 1.

[0039] By setting up the fixing module and the bracket module, the function of measuring the flatness of multiple locations of the bulkhead plate 1 at the same time is realized, and the flatness value can be accurately obtained and recorded at the corresponding position of the bulkhead plate 1, and combined with the subsequent pyrotechnic correction of the flatness, the efficiency of the flatness correction is improved.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solutions of the present invention. They should all be included in the scope of the technical solutions for which protection is sought in the present invention.

Claims

1. A device for measuring the flatness of ship bulkhead plates, characterized in that: The device includes a fixing module, a bracket module and a measuring module. The fixing module is connected to the bracket module, and the bracket module rotates around the fixing module. Multiple measuring modules are installed on the bracket module; the fixing module includes a magnetic base and a connecting column, the middle part of the magnetic base is connected to the connecting column, the bracket module includes a rotating shaft and a connecting rod, the rotating shaft is sleeved on the connecting column, the rotating shaft rotates around the connecting column, and connecting rods are symmetrically arranged on the side of the rotating shaft. The measuring module includes a measuring rod, and multiple measuring rods are installed on the connecting rod.

2. The device for measuring the flatness of a ship bulkhead plate according to claim 1, characterized in that: The magnetic base is truncated cone-shaped as a whole, and the side inclination angle of the magnetic base is 30°. The lower end of the connecting column is vertically connected to the upper end of the magnetic base, and the side surface of the upper end of the connecting column is provided with a thread.

3. The device for measuring the flatness of a ship bulkhead plate according to claim 2, characterized in that: A through hole is provided in the middle of the rotating shaft, and an inclination is provided at the bottom of the rotating shaft. The inclination angle of the bottom of the rotating shaft is 30°. The upper part of the rotating shaft is horizontally arranged, and a connecting rod is symmetrically provided on the upper end of the side of the rotating shaft. When the rotating shaft is sleeved on the connecting column, the inclination angle of the bottom of the rotating shaft is connected to the inclination angle of the side of the magnetic base, and the connecting rod is vertically connected to the side of the rotating shaft.

4. The device for measuring the flatness of a ship bulkhead plate according to claim 3, characterized in that: The length of the connecting rod is 2000mm, and four measuring holes are evenly arranged on the connecting rod. Measuring rods are installed in the measuring holes respectively, and the inner diameter of the measuring holes is 40mm; the upper and lower ends of the measuring holes are respectively provided with pressure covers, one end of the pressure cover is connected and fixed to the end face of the measuring hole, and the other end of the pressure cover extends into the measuring hole.

5. The device for measuring the flatness of a ship bulkhead plate according to claim 4, characterized in that: The measuring rod is cross-shaped as a whole, with a diameter of 30 mm. A snap ring is provided on the side of the measuring rod, and a scale line is provided on the side of the measuring rod above the snap ring. The width of the snap ring is 5 mm. The snap ring on the measuring rod is connected to the pressure cover at the lower end of the measuring hole, and a spring is provided between the snap ring and the pressure cover at the upper end of the measuring hole.

6. A method for measuring the flatness of ship bulkhead plates, characterized in that: The method specifically comprises the following steps: S1. Prepare a device for measuring the flatness of a ship bulkhead plate, the device comprising a fixing module, a bracket module, and a measuring module, the fixing module being connected to the bracket module, the bracket module rotating around the fixing module, and a plurality of measuring modules being mounted on the bracket module; the fixing module comprising a magnetic base and a connecting column, the middle portion of the magnetic base being connected to the connecting column; the bracket module comprising a rotating shaft and a connecting rod, the rotating shaft being sleeved on the connecting column, the rotating shaft rotating around the connecting column, the connecting rods being symmetrically arranged on the sides of the rotating shaft; the measuring module comprising a measuring rod, on which a plurality of measuring rods are mounted; S2, install the fixing module on the bulkhead plate where the flatness is measured, and connect and fix it to the bulkhead plate through the magnetic base; S3, install the measuring rod into the measuring hole on the connecting rod, install the bracket module on the connecting column, sleeve the rotating shaft on the connecting column, and screw the nut into the upper end of the connecting column so that the rotating shaft can rotate on the connecting column; S4, the bottom of the measuring rod is connected to the bulkhead plate. Depending on the flatness of different locations on the bulkhead plate, the scale value on the upper end of the measuring rod changes. The scale value on each measuring rod on the connecting rod at this time is recorded, which is the deformation value of the measuring position on the bulkhead plate. S5, rotate the connecting rod so that the angle between the connecting rod and the original connecting rod is 45° or 90°, and re-record the scale value on each measuring rod on the connecting rod at this time, that is, the deformation value at the measuring position on the bulkhead plate; S6. Repeat S4 and S5 to complete the flatness measurement of all areas of the bulkhead plate.

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