Cabin top wall positioning point dotting device and cabin top wall dotting method

Abstract

The invention relates to the technical field of ship construction, in particular to a cabin top wall positioning point dotting device and a cabin top wall dotting method.The cabin top wall positioning point dotting device comprises a scale seat, a positioning rod and a dotting rod; the scale seat is provided with a scale arranged in the first direction, and the side, in the first direction, of the scale seat is used for being aligned with the midship line. The positioning rod is slidably connected to the scale seat in the first direction. The dotting rod is connected to the positioning rod in an up-down sliding mode, the top of the dotting rod is provided with a dotting part with the tip facing upwards, and when the dotting rod is used, one side, in the first direction, of the scale seat is aligned with a midship line; then the positioning rod is moved, the distance between the positioning rod and the midship line is adjusted to a set value, the position of the positioning rod in the width direction of the ship can be guaranteed, then the dotting rod is pushed upwards, the dotting part impacts the top wall of the cabin upwards, and an identification point is made at the lower end of the top wall of the cabin; the cabin top wall positioning point dotting device is high in dotting efficiency and precision.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly to a positioning point marking device for a cabin top wall and a method for marking the cabin top wall. Background Art

[0002] The cabin top wall is mostly arc-shaped. During the ship production and construction process, the equipment and the center of the opening installed on the cabin top wall need to have high precision. Therefore, before the equipment installation and before the opening, positioning points need to be marked on the cabin top wall. The position of the positioning points in the ship width direction needs to be determined by relying on the midship line on the cabin bottom wall; currently, the position of the positioning points in the ship width direction is mostly determined by manual measurement, and the efficiency and accuracy of the positioning point marking are both low. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that currently, the efficiency and accuracy of marking the positioning points on the cabin top wall are both low.

[0004] To solve the above technical problem, the purpose of the present invention is to provide a positioning point marking device for a cabin top wall, which is used to process positioning points on the cabin top wall and includes: a scale base, a positioning rod, and a marking rod;

[0005] The scale base has scale markings arranged in a first direction, and one side of the scale base in the first direction is used to align with the midship line;

[0006] The positioning rod is slidably connected to the scale base in the first direction;

[0007] The marking rod is slidably connected up and down to the positioning rod, and the top of the marking rod has a marking part with a pointed tip facing upward.

[0008] As a preferred solution, the positioning point marking device for the cabin top wall further includes a magnetic suction base, and the magnetic suction base is connected to the scale base and is used to connect to the cabin bottom wall.

[0009] As a preferred solution, the positioning rod is a tube body, and the lower part of the marking rod is slidably inserted up and down into the tube body.

[0010] As a preferred solution, the positioning point marking device for the cabin top wall further includes a locking mechanism, and the locking mechanism is used to fix the positioning rod to the tube body.

[0011] As a preferred solution, the positioning point marking device for the cabin top wall further includes a ring body, an operating rod, and a marking pen. The ring body is sleeved outside the marking rod and is located above the tube body; the ring body is configured to be able to rotate around the marking rod and be able to slide up and down relative to the marking rod;

[0012] The marking pen is connected to the ring body, and the marking end of the marking pen protrudes upward from the ring body;

[0013] The upper end of the operating rod is connected to the ring body, and the lower end of the operating rod has a holding portion.

[0014] As a preferred solution, the cabin top wall positioning point marking device further includes a connecting sleeve and an elastic member. The connecting sleeve is connected to the upper end of the ring body, and the connecting sleeve and the marking rod are arranged in parallel at intervals. The elastic member is arranged in the inner hole of the connecting sleeve. The lower end of the marking pen is slidably inserted into the inner hole. The upper end of the elastic member abuts against the lower end of the marking pen, and the lower end of the elastic member abuts against the upper end of the ring body.

[0015] As a preferred solution, the locking mechanism includes a locking screw. The locking screw is screwed to the tube wall of the tube body. By rotating the locking screw, the end of the locking screw can pass through the tube wall of the tube body and abut against the outer side of the marking rod.

[0016] A method for marking the cabin top wall. The method for marking the cabin top wall uses the above-mentioned cabin top wall positioning point marking device. The method for marking the cabin top wall includes the following steps:

[0017] Step S1: Align one side of the scale base in the first direction with the ship center line;

[0018] Step S2: Move the positioning rod to adjust the distance between the positioning rod and the ship center line to a set value;

[0019] Step S3: Push the marking rod upward so that the marking portion impacts the cabin top wall upward to make a marking point at the lower end of the cabin top wall.

[0020] As a preferred solution, after step S3, it further includes:

[0021] Step S4: Use the locking mechanism to fix the marking rod to the positioning seat;

[0022] Step S5: Push the operating rod upward so that the marking pen presses against the cabin top wall, and drive the ring body to rotate by using the operating rod, so that the marking pen draws an annular marking line outside the marking point.

[0023] As a preferred solution, before step S2 and after step S1, it further includes:

[0024] Step S11: Turn on the magnetic suction seat and fix the scale base on the cabin bottom wall;

[0025] After step S5, it further includes:

[0026] Step S6: Turn off the magnetic suction seat and remove the scale base.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The device for marking positioning points on the cabin top wall of the present invention includes a scale base, a positioning rod, and a marking rod; the scale base has a scale arranged in the first direction, and one side of the scale base in the first direction is used to align with the ship center line; the positioning rod is slidably connected to the scale base in the first direction; the marking rod is slidably connected to the positioning rod up and down, and the top of the marking rod has a marking portion with a pointed tip facing upward. When in use, first align one side of the scale base in the first direction with the ship center line; then move the positioning rod to adjust the distance between the positioning rod and the ship center line to a set value, so as to ensure the position of the positioning rod in the ship width direction. After that, push the marking rod upward to make the marking portion impact the cabin top wall upward, and mark points are made at the lower end of the cabin top wall. The device for marking positioning points on the cabin top wall of the present invention has high marking efficiency and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the device for marking positioning points on the cabin top wall of the present invention during use;

[0030] Figure 2 is Figure 1 a partial enlarged view at C in

[0031] Figure 3 is a schematic diagram of the setting manner of the connecting sleeve, the elastic member, and the marking pen;

[0032] Figure 4 is a schematic diagram of the structure of the device for marking positioning points on the cabin top wall of the present invention after removing the ring body;

[0033] Figure 5 is a top view of the scale base;

[0034] In the figure, 100, cabin top wall; 200, cabin bottom wall; 300, ship center line; 1, scale base; 11, scale mark; 12, center marking line; 21, positioning rod; 22, marking rod; 221, marking portion; 23, slider; 3, magnetic suction seat; 4, locking screw; 51, ring body; 52, operating rod; 53, marking pen; 54, connecting sleeve; 55, elastic member; 56, holding portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following will further describe in detail the specific embodiments of the present invention with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation on the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0037] As Figures 1 to 5 shown, the positioning point marking device for the cabin top wall 100 of the present invention is used to process positioning points on the cabin top wall 100. A preferred embodiment of the positioning point marking device for the cabin top wall 100 of the present invention includes: a scale base 1, a positioning rod 21, and a marking rod 22; the scale base 1 has a scale arranged along a first direction, and one side of the scale base 1 in the first direction is used to align with the ship center line 300; the positioning rod 21 is slidably connected to the scale base 1 along the first direction; the marking rod 22 is slidably connected to the positioning rod 21 up and down, and the top of the marking rod 22 has a marking portion 221 with a pointed tip facing upward; during use, first align one side of the scale base 1 in the first direction with the ship center line 300; then move the positioning rod 21 to adjust the distance between the positioning rod 21 and the ship center line 300 to a set value, so as to ensure the position of the positioning rod 21 in the ship width direction. After that, push the marking rod 22 upward to make the marking portion 221 impact the cabin top wall 100 upward, and mark points are made at the lower end of the cabin top wall 100. The positioning point marking device for the cabin top wall 100 of the present invention has high marking efficiency and high precision.

[0038] In this embodiment, the marking portion 221 is a conical tip, the scale base 1 is a rectangular column, the first direction is the length direction of the rectangular column, a T-shaped sliding groove is provided in the middle of the rectangular column, the lower end of the positioning rod 21 is connected with a T-shaped sliding block 23, and the T-shaped sliding block 23 is slidably arranged in the T-shaped sliding groove. Scale markings 11 are provided at positions on both sides of the T-shaped sliding groove at the upper end of the scale base 1. Setting the scale markings 11 on both sides of the T-shaped sliding groove facilitates the operators on both sides of the scale base 1 to observe the scale values corresponding to the T-shaped sliding block 23. In this embodiment, a threaded hole is provided at the upper end of the T-shaped sliding block 23, and a threaded section is provided at the lower end of the positioning rod 21, and the threaded section is assembled in the threaded hole.

[0039] Among them, to prevent the positioning rod 21 from sliding on the cabin bottom wall 200 during the dotting process, in this embodiment, the dotting device for the positioning points on the cabin top wall 100 further includes a magnetic suction seat 3. The magnetic suction seat 3 is connected to the scale seat 1, and the magnetic suction seat 3 is used to connect to the cabin bottom wall 200. Specifically, the magnetic suction seat 3 is an electric magnetic suction seat 3, and the magnetic suction seat 3 has a switch for making the magnetic suction seat 3 generate or lose magnetism. After the scale seat 1 is positioned on the cabin bottom wall 200, the switch is turned on, and the magnetic suction seat 3 fixes the scale seat 1 on the cabin bottom wall 200, preventing the scale seat 1 from moving on the cabin bottom wall 200 when the dotting rod 22 is pushed upward, and improving the dotting accuracy of the dotting device for the positioning points on the cabin top wall 100 in this embodiment. To ensure the firm connection of the scale seat 1 on the cabin bottom wall 200, in this embodiment, two magnetic suction seats 3 are provided, and the two magnetic suction seats 3 are arranged at intervals in the length direction of the scale seat 1.

[0040] In this embodiment, the positioning rod 21 is a tube body, and the lower part of the dotting rod 22 is slidably inserted up and down in the tube body. By setting the positioning rod 21 as a tube body, the dotting rod 22 can slide up and down in the tube body, making the overall structure of the positioning rod 21 and the dotting rod 22 compact and easy to process. In other embodiments of the present invention, guide rails arranged numerically can be provided on one side of the positioning rod 21, and vertical chutes can be provided on the dotting rod 22, and the guide rails are arranged in the chutes.

[0041] Furthermore, the dotting device for the positioning points on the cabin top wall 100 further includes a locking mechanism, and the locking mechanism is used to fix the positioning rod 21 to the tube body. Before moving the dotting device for the positioning points on the cabin top wall 100, fixing the dotting rod 22 by using the locking mechanism can avoid accidental injuries caused by the sliding of the dotting rod 22.

[0042] Among them, there are various ways to implement the locking mechanism. For example, a card slot is provided on the outer side of the dotting rod 22, and an elastic buckle is provided on the tube body. By inserting the elastic buckle into the card slot, the dotting rod 22 can be blocked from sliding up and down relative to the positioning rod 21. In this embodiment, the locking mechanism includes a locking screw 4, and the locking screw 4 is screwed to the tube wall of the tube body. By rotating the locking screw 4, the end of the locking screw 4 can pass through the tube wall of the tube body and abut against the outer side of the dotting rod 22. Specifically, a threaded hole is provided on the tube wall of the tube body, and the threaded hole extends along the radial direction of the tube body. The threaded hole penetrates the tube cavity of the tube body and the outside. By rotating the locking screw 4, the locking screw 4 can move along the radial direction of the tube body to fix the dotting rod 22. Using the locking screw 4 to fix the dotting rod 22 does not require a card slot to be provided on the dotting rod 22, and the extended length of the dotting rod 22 can be continuously adjusted without being restricted by the distance between the card slots.

[0043] In this embodiment, the positioning point marking device for the cabin top wall 100 further includes a ring body 51, an operating rod 52, and a marking pen 53. The ring body 51 is sleeved outside the marking rod 22 and is located above the tube body. The ring body 51 is configured to be rotatable around the marking rod 22 and slidable up and down relative to the marking rod 22. The marking pen 53 is connected to the ring body 51, and the marking end of the marking pen 53 protrudes upward from the ring body 51. The upper end of the operating rod 52 is connected to the ring body 51, and the lower end of the operating rod 52 has a holding portion 56. Specifically, the marking points made by the marking rod 22 on the cabin top wall 100 are relatively small. During installation, if the equipment to be installed covers the marking points, it is not convenient for the operator to observe whether the center of the equipment to be installed coincides with the marking points. Moreover, during the equipment installation process, it is difficult for the operator to quickly find the relatively small marking points, which affects the construction efficiency. In this embodiment, after the marking is completed, push the holding portion 56 of the operating rod 52 upward, so that the marking pen 53 presses against the cabin top wall 100, and then drive the ring body 51 to rotate by using the operating rod 52, so that the marking pen 53 draws a circular marking line outside the marking point. The circular marking line facilitates the operator to quickly find the marking point. Moreover, during the equipment installation process, if the mounting seat of the equipment covers the marking point, the distance between the mounting seat and the circular marking line can be observed through the circular marking to determine whether the mounting seat is located at the center of the circular marking line, so as to ensure the accuracy of the equipment installation position. Among them, the operating rod 52 is vertically arranged, and the operating rod 52 is parallel and spaced from the positioning rod 21. The holding portion 56 includes a handle connected to the lower end of the operating rod 52. The handle extends radially away from the fixed rod along the operating rod 52. The operator can hold the handle and push the operating rod 52 upward, and drive the operating rod 52 to rotate around the axis of the positioning rod 21. The operator can stand on the cabin bottom wall 200 and draw a circular marking line on the cabin top wall 100, which is convenient to operate.

[0044] In this embodiment, to adapt to the cabin top walls 100 of different heights, the operating rod 52 is a telescopic rod, and the length of the operating rod 52 can be adjusted according to the height position of the cabin top wall 100. Moreover, sliding the ring body 51 upward can make the ring body 51 disengage from the marking rod 22. When the circular marking line does not need to be drawn, the ring body 51 can be removed from the marking rod 22.

[0045] Further, in this embodiment, the positioning point marking device for the cabin top wall 100 further includes a connecting sleeve 54 and an elastic member 55. The connecting sleeve 54 is connected to the upper end of the ring body 51 and is arranged parallel and spaced from the marking rod 22. The elastic member 55 is disposed in the inner hole of the connecting sleeve 54. The lower end of the marking pen 53 is slidably inserted into the inner hole. The upper end of the elastic member 55 abuts against the lower end of the marking pen 53, and the lower end of the elastic member 55 abuts against the upper end of the ring body 51. When pushing the operating rod 52 upward, the upper end of the marking pen 53 abuts against the cabin top wall 100, and the lower end of the marking pen 53 compresses the elastic member 55, so that the marking pen 53 is in elastic contact with the cabin top wall 100, avoiding damaging the marking pen 53 due to excessive or too small a thrust. Moreover, the shape of the cabin top wall 100 is arc-shaped, and the setting of the elastic member 55 can also automatically adjust the length of the marking pen 53 extending out of the ring body 51, so that the marking pen 53 is always in contact with the cabin top wall 100, ensuring the continuity and non-interruption of the circular marking line.

[0046] In summary, the positioning point marking device for the cabin top wall 100 of the present invention includes a scale base 1, a positioning rod 21 and a marking rod 22; the scale base 1 has a scale arranged in the first direction, and one side of the scale base 1 in the first direction is used to align with the ship center line 300; the positioning rod 21 is slidably connected to the scale base 1 in the first direction; the marking rod 22 is slidably connected to the positioning rod 21 up and down, and the top of the marking rod 22 has a marking portion 221 with a tip facing upward. When in use, first align one side of the scale base 1 in the first direction with the ship center line 300; then move the positioning rod 21 to adjust the distance between the positioning rod 21 and the ship center line 300 to a set value, so as to ensure the position of the positioning rod 21 in the ship width direction. After that, push the marking rod 22 upward to make the marking portion 221 impact the cabin top wall 100 upward, and make a marking point at the lower end of the cabin top wall 100. The positioning point marking device for the cabin top wall 100 of the present invention has high marking efficiency and high precision.

[0047] An embodiment of a method for marking the cabin top wall 100 uses the above-mentioned positioning point marking device for the cabin top wall 100. The method for marking the cabin top wall 100 includes the following steps:

[0048] Step S1, align one side of the scale base 1 in the first direction with the ship center line 300;

[0049] Step S2, move the positioning rod 21 to adjust the distance between the positioning rod 21 and the ship center line 300 to a set value;

[0050] Step S3, push the marking rod 22 upward to make the marking portion 221 impact the cabin top wall 100 upward, and make a marking point at the lower end of the cabin top wall 100.

[0051] Among them, after step S3, it further includes:

[0052] Step S4: Fix the dotting rod 22 to the positioning seat by using the locking mechanism;

[0053] Step S5: Push the operating rod 52 upward so that the marking pen 53 presses against the top wall of the cabin 100. Drive the ring body 51 to rotate by using the operating rod 52, so that the marking pen 53 draws an annular marking line outside the marking point.

[0054] After Step S1 and before Step S2, it further includes:

[0055] Step S11: Turn on the magnetic suction seat 3 and fix the scale seat 1 on the bottom wall of the cabin 200;

[0056] After Step S5, it further includes:

[0057] Step S6: Turn off the magnetic suction seat 3 and remove the scale seat 1.

[0058] In this embodiment, the position of the marking point in the hull length direction is determined by the rib lines. The rib lines are located on the bottom wall of the cabin 200. A plurality of rib lines are arranged in parallel at intervals along the hull length direction. By moving the scale seat 1, the length direction of the scale seat 1 is parallel to the rib lines and the scale seat 1 coincides with a specific rib line, so as to realize the positioning of the scale seat 1 in the hull width direction. To facilitate the precise positioning of the scale seat 1, in this embodiment, a center marking line 12 is provided at the center of the width direction of the scale seat 1. Align the center marking line 12 with the rib line, and the position accuracy of the scale seat 1 in the hull length direction can be guaranteed.

[0059] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A device for marking positioning points on the top wall of a cabin, used for machining positioning points on the top wall of a cabin, characterized in that: include: Ruler seat, positioning rod and dotting rod; The ruler seat has scale marks arranged along a first direction, and one side of the ruler seat in the first direction is used to align with the midship line; The positioning rod is slidably connected to the scale seat along the first direction; The dotting rod is slidably connected to the positioning rod up and down, and the top of the dotting rod is provided with a dotting portion with a tip facing upward.

2. The device for marking positioning points on the top wall of a cabin according to claim 1, characterized in that: The device for marking positioning points on the cabin top wall also includes a magnetic seat, which is connected to the scale seat and is used to connect to the cabin bottom wall.

3. The device for marking positioning points on the cabin top wall according to claim 1, characterized in that: The positioning rod is a tube body, and the lower part of the dotting rod is inserted into the tube body in a manner of sliding up and down.

4. The device for marking positioning points on the top wall of a cabin according to claim 3, characterized in that: The cabin top wall positioning point marking device also includes a locking mechanism, and the locking mechanism is used to fix the positioning rod to the tube body.

5. The device for marking positioning points on the cabin top wall according to claim 4, characterized in that: The cabin top wall positioning point marking device also includes a ring body, an operating rod and a marking pen, wherein the ring body is sleeved on the outside of the marking rod and is located above the tube body; the ring body is configured to be able to rotate around the marking rod and slide up and down relative to the marking rod; The marking pen is connected to the ring body, and the marking end of the marking pen protrudes upward from the ring body; The upper end of the operating rod is connected to the ring body, and the lower end of the operating rod is provided with a gripping portion.

6. The device for marking positioning points on the cabin top wall according to claim 5, characterized in that: The cabin top wall positioning point dotting device also includes a connecting sleeve and an elastic member, the connecting sleeve is connected to the upper end of the ring body and the connecting sleeve is arranged parallel to the dotting rod and spaced apart, the elastic member is arranged in the inner hole of the connecting sleeve, the lower end of the marking pen is slidably inserted in the inner hole, the upper end of the elastic member abuts against the lower end of the marking pen, and the lower end of the elastic member abuts against the upper end of the ring body.

7. The device for marking positioning points on the cabin top wall according to claim 4, characterized in that: The locking mechanism comprises a locking screw, which is threadedly connected to the tube wall of the tube body. By rotating the locking screw, the end of the locking screw can pass through the tube wall of the tube body and abut against the outer side of the striking rod.

8. A method for dotting the top wall of a cabin, characterized in that: The cabin top wall spotting method uses the cabin top wall positioning point spotting device according to any one of claims 1 to 7, and the cabin top wall spotting method comprises the following steps: Step S1, aligning one side of the ruler seat in the first direction with the midship line; Step S2, moving the positioning rod so that the distance between the positioning rod and the midship line is adjusted to a set value; Step S3, push the dot-marking rod upwards, so that the dot-marking part impacts the cabin top wall upwards, and makes a marking point at the lower end of the cabin top wall.

9. The method for dotting the cabin top wall according to claim 8, characterized in that: After step S3, the following steps are also included: Step S4, fixing the dotting rod to the positioning seat by using a locking mechanism; Step S5, push the operating rod upward so that the marking pen is pressed against the top wall of the cabin, and use the operating rod to drive the ring body to rotate so that the marking pen draws a circular marking line outside the marking point.

10. The method for dotting the cabin top wall according to claim 9, characterized in that: After step S1 and before step S2, the method further includes: Step S11, open the magnetic seat and fix the ruler seat on the bottom wall of the cabin; After step S5, the method further includes: Step S6, closing the magnetic base and removing the scale base.

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