A device and method for drilling a through-weld hole at the end of a ship profile

Abstract

The present invention discloses a device and method for drilling through-weld holes at the end of a ship profile. The drilling device includes a clamping portion, an orienting portion, and a contour line through-hole. The clamping portion includes a horizontal clamping portion and a vertical clamping portion. The horizontal clamping portion includes a base, a movable plate, a horizontal plate, and a first spring. The first spring is connected to the movable plate. The orienting portion includes a first cylinder, a third cylinder, a first limit block, a second limit block, and a third limit block. The first limit block and the third limit block each have a circular hole perpendicular to the surface at their centers. The first cylinder and the third cylinder pass through the circular holes of the first limit block and the third limit block, respectively. The vertical clamping portion includes a second spring and mutually perpendicular longitudinal and transverse walls. The transverse wall is provided with a contour line through-hole. The present invention has a simple structure and is easy to use, and solves the problem of damaging the local structure during segmented construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and in particular relates to a device and a method for drilling through-welding holes at the end of a ship profile. Background Art

[0002] The current mainstream hull construction process is mainly divided into several stages: small assembly, medium assembly, large assembly, and final assembly. The entire ship is broken down into large ring segments (the ring segment is the final assembly), and the ring segments are assembled from individual large assemblies, which are in turn assembled from small assemblies. The small assemblies are assembled using flat materials cut from steel plates. Therefore, the process of ship construction is always inevitable. At each construction stage, through-holes are left at the bottom ends of the structures to facilitate welding when they are assembled.

[0003] However, during the block-by-block construction of ships, due to the demand for precision, structural ends are often trimmed at various stages. This results in the through-weld holes, which were originally automatically cut during the initial steel plate cutting process, being intentionally cut out in subsequent construction. Often, these holes are overlooked because they are small, forcing subsequent construction processes to open the ends to facilitate the next step. In the process of opening holes, there is a lack of appropriate marking and inspection tools, and cutting torches are used to cut holes arbitrarily, damaging local structures. Summary of the Invention

[0004] To address the challenges of the prior art, the present invention provides a device for drilling through-weld holes on the ends of ship profiles. This device can perform hole marking and dimensional inspection, resolving the difficulty of drilling through-weld holes on the ends of profiles during the medium, large, and final assembly stages. Furthermore, the present invention provides a method for drilling through-weld holes on the ends of ship profiles.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The first aspect of the present invention provides a device for drilling a through-weld hole at the end of a ship profile, comprising a left-side clamping mechanism, a right-side clamping mechanism and a limiting mechanism. The left-side clamping mechanism and the right-side clamping mechanism have the same structure and are symmetrically arranged, comprising a longitudinal wall, a transverse wall, a base, a movable plate and a horizontal plate. The side of the left-side clamping mechanism and the right-side clamping mechanism close to each other is defined as the inner side, and the opposite direction is defined as the outer side. The transverse wall is arranged on the inner side of the longitudinal wall along the height direction of the longitudinal wall, and the transverse wall is perpendicular to the longitudinal wall. The horizontal plate is arranged on the outer side of the longitudinal wall and is vertically connected to the longitudinal wall. At the bottom end, the base is arranged at the lower part of the horizontal plate and is parallel to the horizontal plate, the movable plate is arranged in the space between the base and the horizontal plate, the movable plate and the base are connected by the first spring, the left clamping mechanism and the right clamping mechanism are connected by a limit machine, a steel clamping groove is formed between the longitudinal wall of the left clamping mechanism and the longitudinal wall of the right clamping mechanism, a bottom plate clamping groove is formed between the horizontal plates of the left clamping mechanism and the right clamping mechanism and the movable plate, and a contour line through hole is opened on the longitudinal wall at the connection between the longitudinal wall and the horizontal plate.

[0007] As a preferred technical solution, the distance between the movable plate and the horizontal plate when the first spring is in a natural state is smaller than the thickness of the bottom plate.

[0008] As a preferred technical solution, the widths of the longitudinal wall, the horizontal plate, the movable plate, and the base are equal.

[0009] As a preferred technical solution, the horizontal plate of the left clamping mechanism is connected to the base through a left sheet, and the horizontal plate of the right clamping mechanism is connected to the base through a right sheet.

[0010] As a preferred technical solution, the limiting mechanism includes a first limiting block, a second limiting block, and a third limiting block. The first limiting block is installed on the side of the longitudinal wall, and the second limiting block and the third limiting block are installed on the left plate and the right plate. Circular holes are opened on the first limiting block and the third limiting block. The first cylinder is installed in the circular hole of the first limiting block, and the third cylinder is installed in the circular hole of the third limiting block. The two second limiting blocks are connected by a second spring.

[0011] As a preferred technical solution, the length of the second spring in a natural state is less than the thickness of the steel section.

[0012] As a preferred technical solution, the first cylinder is welded to the first limit block on the left clamping mechanism, and the third cylinder is welded to the third limit block on the left clamping mechanism.

[0013] As a preferred technical solution, the end of the first cylinder is flush with the outer side of the first limiting block, and the third cylinder is flush with the outer side of the third limiting block.

[0014] As a preferred technical solution, an arc-shaped hole is opened at the position where the horizontal plate is connected to the contour line hole.

[0015] A second aspect of the present invention provides a method for drilling a through-weld hole at the end of a ship profile, using the above-mentioned device for drilling a through-weld hole at the end of a ship profile, characterized in that the method comprises the following steps:

[0016] Step 1: After the tire frame is placed on the bottom plate, install the steel;

[0017] Step 2: Insert the bottom plate into the bottom plate clamping groove at the junction of the steel section and clamp the bottom plate;

[0018] Step 3: Insert the web of the steel into the steel clamping groove to clamp the steel;

[0019] Step 4: Use a stone pencil to draw the cutting line of the hole along the hole outline on the vertical wall;

[0020] Step 5: Take out the hole-cutting device and use the cutting torch to cut a hole along the contour line of one side of the steel web;

[0021] Step 6. After cutting, use the outline drawn on the other side of the web of the steel section to check whether the hole size meets the standard.

[0022] Compared with the prior art, the present invention has the following technical effects: the present invention has a simple structure and is easy to use. It is used for marking the through-weld holes at the ends of profiles, solving the problem of arbitrarily cutting holes at the ends of profiles and damaging the local structure due to the lack of suitable tools during segmented construction. It can also be used as an inspection tool to detect whether the shape and size of the through-weld holes meet the specifications and standards. Based on actual operational needs, the device innovatively uses spring deformation as a source of clamping force, replacing the conventional solution of using a clamp to provide clamping force, making it quick and convenient to use in practice, with excellent results. At the same time, thanks to the design of the spring, the tooling can adapt to steel within a certain thickness range, greatly improving its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0024] Figure 1This is a diagram showing the use of the device for opening a through-welding hole at the end of a ship profile according to the present invention.

[0025] Figure 2 It is a structural schematic diagram of the device for opening through-welding holes at the end of a ship profile according to the present invention.

[0026] Figure 3 It is a side view of the device for opening a through-welding hole at the end of a ship profile according to the present invention.

[0027] Figure 4 It is a front view of the device for opening a through-welding hole at the end of a ship profile according to the present invention.

[0028] Among them, the specific description of the figure marks is as follows: steel section 1, bottom plate 2, left sheet 11, right sheet 12, first cylinder 13, second spring 14, third cylinder 15, first limit block 21, second limit block 22, third limit block 23, base 31, movable plate 32, horizontal plate 33, first spring 34, longitudinal wall 35, transverse wall 36, contour line through hole 37. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0030] This embodiment provides a device for drilling a through-weld hole at the end of a ship profile, including a left-side clamping mechanism, a right-side clamping mechanism and a limiting mechanism. The left-side clamping mechanism and the right-side clamping mechanism have the same structure and are symmetrically arranged, including a longitudinal wall 35, a transverse wall 36, a base 31, a movable plate 32, and a horizontal plate 33. The side of the left-side clamping mechanism and the right-side clamping mechanism close to each other is defined as the inner side, and the opposite direction is defined as the outer side. The transverse wall 36 is arranged on the inner side of the longitudinal wall 35 along the height direction of the longitudinal wall 35, and the transverse wall 36 is perpendicular to the longitudinal wall 35. The horizontal plate 33 is arranged on the outer side of the longitudinal wall 35 and is vertically connected to the bottom end of the longitudinal wall 35. The base 31 is arranged at the lower part of the horizontal plate 33 and is parallel to the horizontal plate 33. The movable plate 32 is arranged in the space between the base 31 and the horizontal plate 33. The widths of the longitudinal wall 35, the horizontal plate 33, the movable plate 32, and the base 31 are equal. The horizontal plate 33 of the left clamping mechanism is connected to the base 31 via the left plate 11 , and the horizontal plate 33 of the right clamping mechanism is connected to the base 31 via the right plate 12 .

[0031] The movable plate 32 is connected to the base 31 via a first spring 34, and the left clamping mechanism is connected to the right clamping mechanism via a position limiter. A steel clamping groove is formed between the longitudinal wall 35 of the left clamping mechanism and the longitudinal wall 35 of the right clamping mechanism, and a bottom plate clamping groove is formed between the horizontal plates 33 of the left and right clamping mechanisms and the movable plate 32. When the first spring 34 is in a natural state, the distance between the movable plate 32 and the horizontal plate 33 is less than the thickness of the bottom plate 2. When the movable plate 32 and the horizontal plate 33 move toward each other, the first spring 34 is subjected to the downward pressure of the movable plate 32, forming a reaction force, so that the horizontal plate 33 and the movable plate 32 can form a horizontal clamping effect. This fully utilizes the characteristics of the spring and can be quickly applied to plates within a certain thickness range.

[0032] The limiting mechanism includes a first limiting block 21, a second limiting block 22, and a third limiting block 23. The first limiting block 21 is installed on the side of the longitudinal wall 35. The second limiting block 22 and the third limiting block 23 are installed on the left and right plates 11 and 12. The first limiting block 21 and the third limiting block 23 are each provided with a circular hole. The first cylinder 13 is installed in the circular hole of the first limiting block 21, and the third cylinder 15 is installed in the circular hole of the third limiting block 23. The two second limiting blocks 22 are connected by a second spring 14. The length of the second spring 14 in its natural state is less than the thickness of the web of the section steel 1, which can be used for webs of section steel 1 of different thicknesses. The first cylinder 13 is welded to the first limiting block 21 on the left clamping mechanism, and the third cylinder 15 is welded to the third limiting block 23 on the left clamping mechanism. The end of the first cylinder 13 is flush with the outer side of the first limiting block 21, and the third cylinder 15 is flush with the outer side of the third limiting block 23. One end of the fixed cylinder allows the first and third limit blocks 21 and 23 on the right sheet 12 to move in a fixed direction along the cylindrical direction. At the same time, due to the provision of two parallel cylinders, rotation is restricted, ensuring that the right sheet 12 can only translate along the cylindrical direction.

[0033] A contour line through hole 37 is opened on the longitudinal wall 35 at the connection between the longitudinal wall 35 and the horizontal plate 33, and an arc-shaped hole is opened at the position where the horizontal plate 33 is connected to the contour line hole, ensuring that the arc end of the contour line through hole 37 on the longitudinal wall 35 will not be blocked by the horizontal plate 33, and a complete contour line can be drawn on the web of the end of the steel section 1.

[0034] This embodiment also provides a method for drilling a through-weld hole at the end of a ship profile, comprising the following steps:

[0035] Step 1: After the base plate 2 is placed on the frame, install the steel 1;

[0036] Step 2: Insert the bottom plate 2 into the bottom plate clamping groove at the junction of the steel section 1 and the bottom plate 2, and clamp the bottom plate 2;

[0037] Step 3: Insert the web of the steel section 1 into the steel section clamping groove to clamp the steel section 1;

[0038] Step 4: Use a stone pencil to draw the cutting line of the hole 37 along the hole outline on the vertical wall 35;

[0039] Step 5: Take out the hole-cutting device and use a cutting torch to cut a hole along the contour line of one side of the web of section steel 1;

[0040] Step 6: After cutting, use the outline drawn on the other side of the web of the steel section 1 to check whether the hole size meets the standard.

[0041] Although the above embodiments have been described in detail for the present invention, it should be understood by those skilled in the art that modifications or improvements can be made based on the contents disclosed in the present invention without departing from the spirit and scope of the present invention, and that these modifications and improvements are within the spirit and scope of the present invention.

Claims

1. A device for drilling through-welding holes at the end of a ship profile, characterized in that: The invention comprises a left clamping mechanism, a right clamping mechanism and a limiting mechanism. The left clamping mechanism and the right clamping mechanism have the same structure and are symmetrically arranged, including a longitudinal wall, a transverse wall, a base, a movable plate and a horizontal plate. The left clamping mechanism and the right clamping mechanism are defined as the inner side and the opposite side as the outer side. The transverse wall is arranged on the inner side of the longitudinal wall along the height direction of the longitudinal wall. The transverse wall is perpendicular to the longitudinal wall. The horizontal plate is arranged on the outer side of the longitudinal wall and is vertically connected to the bottom end of the longitudinal wall. The base is arranged on the water wall. The lower part of the flat plate is parallel to the horizontal plate, the movable plate is arranged in the space between the base and the horizontal plate, the movable plate is connected to the base by a first spring, the left clamping mechanism and the right clamping mechanism are connected by a limiting mechanism, a steel clamping groove is formed between the longitudinal wall of the left clamping mechanism and the longitudinal wall of the right clamping mechanism, a bottom plate clamping groove is formed between the horizontal plates of the left clamping mechanism and the right clamping mechanism and the movable plate, and a contour line through hole is opened on the longitudinal wall at the connection between the longitudinal wall and the horizontal plate; The horizontal plate of the left clamping mechanism is connected to the base via a left plate, and the horizontal plate of the right clamping mechanism is connected to the base via a right plate; The limiting mechanism includes a first limiting block, a second limiting block, and a third limiting block. The first limiting block is installed on the side of the longitudinal wall. The second limiting block and the third limiting block are installed on the left plate and the right plate. Circular holes are opened on the first limiting block and the third limiting block. A first cylinder is installed in the circular hole of the first limiting block. A third cylinder is installed in the circular hole of the third limiting block. The two second limiting blocks are connected by a second spring.

2. A device for drilling through-welding holes at the end of a ship profile according to claim 1, characterized in that: When the first spring is in a natural state, the distance between the movable plate and the horizontal plate is smaller than the thickness of the bottom plate.

3. A device for drilling through-welding holes at the end of a ship profile according to claim 1, characterized in that: The widths of the longitudinal wall, the horizontal plate, the movable plate and the base are equal.

4. A device for drilling through-welding holes at the end of a ship profile as claimed in claim 1, characterized in that: The length of the second spring in a natural state is less than the thickness of the web of the section steel.

5. The device for drilling a through-weld hole at the end of a ship profile according to claim 1, characterized in that: The first cylinder is welded to the first limiting block on the left clamping mechanism, and the third cylinder is welded to the third limiting block on the left clamping mechanism.

6. A device for drilling through-welding holes at the end of a ship profile as claimed in claim 5, characterized in that: The end of the first cylinder is flush with the outer side of the first limiting block, and the end of the third cylinder is flush with the outer side of the third limiting block.

7. A device for drilling through-welding holes at the end of a ship profile according to claim 1, characterized in that: A circular arc-shaped hole is provided at a position where the horizontal plate is connected to the contour line through hole.

8. A method for drilling a through-weld hole at the end of a ship profile, using the device for drilling a through-weld hole at the end of a ship profile according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: After the tire frame is placed on the bottom plate, install the steel; Step 2: Insert the bottom plate into the bottom plate clamping groove at the junction of the steel section and clamp the bottom plate; Step 3: Insert the web of the steel into the steel clamping groove to clamp the steel; Step 4: Use a stone pencil to draw the cutting line of the hole along the hole outline on the vertical wall; Step 5: Take out the hole-cutting device and use the cutting torch to cut a hole along the contour line of one side of the steel web; Step 6. After cutting, use the outline drawn on the other side of the web of the steel section to check whether the hole size meets the standard.

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