Back side marking tool

Abstract

The present invention discloses a reverse scribing tool, including a first scribing plate, a second scribing plate and a vertical plate, wherein the second scribing plate is provided at the bottom of the first scribing plate, the top of the second scribing plate is fixedly connected with a vertical plate penetrating the first scribing plate, the rear end of the vertical plate is fixedly connected with a tooth block, a slide groove is provided inside the first scribing plate, a push-pull member is slidably connected inside the slide groove, and the front end of the push-pull member is fixedly connected with a tooth plate on one side close to the tooth block. In the present invention, firstly, a size-adjustable structure is adopted, and the size of the reverse scribing tool can be adjusted according to the actual thickness of the steel plate, which is convenient for adjusting and scribing of steel plates of different sizes, thereby improving the applicability of the reverse scribing tool, and secondly, a rotation angle visual structure is adopted, and the scribing angle between the reverse scribing tool and the steel plate can be intuitively displayed to the operator, which is convenient for the operator to adjust and use the scribing, and also improves the accuracy of the reverse scribing.

Description

Technical Field

[0001] The invention relates to the technical field of ship and ocean engineering tools, in particular to a reverse marking tool. Background Art

[0002] In shipbuilding, CNC cutting machines are used to cut steel plates and produce plate parts. CNC cutting machines can spray lines on the plates to mark the positions of other parts to be installed on the plates. However, CNC cutting machines can only spray lines on one side of the steel plate, and the assembly lines of other parts installed on the other side of the plate can only be manually marked on the back of the plate.

[0003] In actual production, a cutting machine is usually used to mark the reverse side of the steel plate on the front side, and then a line plate is used to manually mark the reverse side of the steel plate according to the position of the reverse side of the steel plate. The line plate is a wooden cuboid with a hollow middle part. It is shaped like a clip and can be "clamped" on the edge of the steel plate to reflect the situation of the reverse side of the steel plate. There are two problems with the line plate: 1. The thickness of the hollow middle part is the thickness of the corresponding steel plate. Therefore, different line plates need to be used for steel plates of different thicknesses. The thickness of the steel plates actually used in shipyards ranges from 6mm to 100mm, so a lot of corresponding line plates need to be prepared, and it is also troublesome to switch back and forth during use. 2. The line plate can only be drawn perpendicular to the thickness of the steel plate. When there are assembly parts on both sides of the plate, both need to be marked with assembly lines, and the distance between the assembly lines is close, if the assembly lines of the front parts and the assembly lines of the reverse parts are marked on the front of the steel plate at the same time, they will be indistinguishable. Because when the two lines are very close, the lines sprayed by the cutting machine will partially overlap and lose accuracy. Therefore, it is impossible to draw the assembly line of the reverse side parts in this case, and the reverse side lines can only be drawn manually based on the data marked by the design department. Summary of the invention

[0004] The purpose of the present invention is to propose a reverse surface marking tool in order to solve the problem that the conventional reverse surface marking tool is difficult to be applied to the marking of steel plates of any thickness and the marking tool has low operation precision.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The reverse side scribing tool comprises a first scribing plate, a second scribing plate and a vertical plate, wherein the second scribing plate is arranged at the bottom of the first scribing plate, the top of the second scribing plate is fixedly connected with the vertical plate which passes through the first scribing plate, the rear end of the vertical plate is fixedly connected with a tooth block, a sliding groove is provided inside the first scribing plate, a push-pull member is slidably connected inside the sliding groove, and a tooth plate is fixedly connected to the side of the front end of the push-pull member close to the tooth block.

[0007] As a further description of the above technical solution:

[0008] A detachable plastic pad is installed at the bottom of the first sliding plate and the top of the second sliding plate.

[0009] As a further description of the above technical solution:

[0010] A compression spring is installed at the rear end of the push-pull member and between the push-pull member and the slide slot.

[0011] As a further description of the above technical solution:

[0012] The front end of the vertical plate is rotatably connected to a rotating frame, and the top of the rotating frame is rotatably connected to an arc ruler.

[0013] As a further description of the above technical solution:

[0014] The rear end of the rotating frame is symmetrically and fixedly connected with two groups of supporting plates which are distributed in parallel.

[0015] As a further description of the above technical solution:

[0016] A vertically distributed pointer bar is fixedly connected to the front end of the first scratch plate, and the front end surface of the pointer bar fits with the rear end surface of the arc ruler.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In the present invention, a size-adjustable structure is adopted, a tooth block is provided on the vertical plate, and a slide groove, a push-pull member and an extrusion spring are provided on the first scratching plate. When the push-pull member is slid to the right in the slide groove, the tooth plate on the push-pull member will be separated from the tooth block on the vertical plate, and the vertical plate can be slid and adjusted in the vertical direction, so that the adjustment of the distance between the first scratching plate and the second scratching plate can be achieved. This structure can adjust the size of the reverse side marking tool according to the actual thickness of the steel plate, which is convenient for adjusting and marking steel plates of different sizes, thereby improving the applicability of the reverse side marking tool.

[0019] 2. In the present invention, a rotation angle visual structure is adopted, a rotating frame and an arc ruler are provided on the vertical rod, and a pointer bar is provided on the first scratching plate. When the second scratching plate and the rotating frame are in contact with and aligned with the back side of the steel plate, the contact and fixing process between the arc ruler and the steel plate is completed. When the first scratching plate is rotated to fit the front side of the steel plate, the angle between the front side marking line and the back side marking line can be obtained by comparing the pointer bar on the first scratching plate with the scale on the arc ruler. This structure can intuitively display the marking angle between the back side marking tool and the steel plate to the operator, which is convenient for the operator to adjust the marking and use, and also improves the accuracy of the back side marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of the reverse side scribing tool provided by the present invention;

[0021] Figure 2 It is a three-dimensional side sectional schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the operation of the reverse side scribing tool and the steel plate in the present invention;

[0023] Figure 4 It is a schematic diagram of a reverse scribing tool in the prior art.

[0024] Legend:

[0025] 1. First scratching plate; 101. Slide groove; 102. Pointer bar; 2. Second scratching plate; 201. Scribing groove; 3. Vertical plate; 301. Tooth block; 4. Push-pull member; 401. Tooth plate; 5. Extrusion spring; 6. Rotating frame; 7. Arc ruler. DETAILED DESCRIPTION

[0026] 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4 The present invention provides a technical solution: a reverse side scribing tool, comprising a first scribing plate 1, a second scribing plate 2 and a vertical plate 3, the second scribing plate 2 is arranged at the bottom of the first scribing plate 1, the top of the second scribing plate 2 is fixedly connected with the vertical plate 3 which penetrates the first scribing plate 1, the rear end of the vertical plate 3 is fixedly connected with a tooth block 301, a sliding groove 101 is opened inside the first scribing plate 1, a push-pull member 4 is slidably connected inside the sliding groove 101, and a tooth plate 401 is fixedly connected to the side of the front end of the push-pull member 4 close to the tooth block 301.

[0028] Specifically, Figure 1-3 As shown, a marking groove 201 is provided inside the second marking plate 2, and the lower end of the marking groove 201 is an open structure, and the rear end of the push-pull member 4 is located between the push-pull member 4 and the slide groove 101 and an extrusion spring 5 is installed. The setting of the marking groove 201 facilitates the placement and marking of the marking pen, thereby improving the accuracy and stability of the marking process on the reverse side, and the setting of the extrusion spring 5 facilitates the resetting process after the push-pull member 4 is released, thereby facilitating the automatic locking process of the position of the vertical plate 3.

[0029] Specifically, Figure 1-3As shown, the front end of the vertical plate 3 is rotatably connected to the rotating frame 6, the top of the rotating frame 6 is rotatably connected to the arc ruler 7, the front end of the first scratching plate 1 is fixedly connected to a vertically distributed pointer bar 102, and the front end surface of the pointer bar 102 and the rear end surface of the arc ruler 7 are in contact with each other. The setting of the rotating frame 6 facilitates the rotation adjustment of the arc ruler 7, and the setting of the pointer bar 102 facilitates the operator to read the scale on the arc ruler 7.

[0030] Working principle: When in use, according to the actual thickness of the steel plate, when the spacing between the first paddle plate 1 and the second paddle plate 2 needs to be adjusted, the user holds the first slider and slides the push-pull member 4 to the right in the slide groove 101. When the tooth plate 401 on the push-pull member 4 is disengaged from the tooth block 301 on the vertical plate 3, it contacts the locked state of the vertical plate 3, and the second paddle plate 2 can be slid and adjusted at the bottom of the first paddle plate 1 through the vertical plate 3. When the first paddle plate 1 and the second paddle plate 2 are adjusted to a suitable spacing, the push-pull member 4 can be released. Under the action of the extrusion spring 5, the push-pull member 4 will drive the tooth plate 401 to move closer to the vertical plate 3, thereby The adjusted position of the vertical plate 3 is locked. When it is necessary to mark the front and back sides of the steel plate, the rotating frame 6 and the second marking plate 2 are respectively contacted and fitted to the back side of the steel plate, and the first marking plate 1 is rotated on the vertical plate 3 and fitted to the front side of the steel plate. When the first marking plate 1 and the second marking plate 2 are in contact with the steel plate, the pointer bar 102 on the first marking plate 1 can be compared with the scale on the arc ruler 7 to know the angle between the two groups of marking positions. After the overall adjustment and measurement, the pen tip of the marking pen can be inserted into the marking groove 201 on the second marking plate 2, and the marking pen can be slid in the marking groove 201 to complete the convenient marking process on the back side of the steel plate.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reverse side scribing tool, comprising a first scribing plate (1), a second scribing plate (2) and a vertical plate (3), characterized in that: A second scratching plate (2) is arranged at the bottom of the first scratching plate (1), a vertical plate (3) penetrating the first scratching plate (1) is fixedly connected to the top of the second scratching plate (2), a tooth block (301) is fixedly connected to the rear end of the vertical plate (3), a sliding groove (101) is provided inside the first scratching plate (1), a push-pull member (4) is slidably connected inside the sliding groove (101), and a tooth plate (401) is fixedly connected to the front end of the push-pull member (4) on the side close to the tooth block (301); A marking groove (201) is provided inside the second scratching plate (2), and the lower end of the marking groove (201) is an open structure. The rear end of the push-pull member (4) is provided with a compression spring (5) between the push-pull member (4) and the slide groove (101). The front end of the vertical plate (3) is rotatably connected to a rotating frame (6), and the top of the rotating frame (6) is rotatably connected to an arc ruler (7). The front end of the first scratching plate (1) is fixedly connected to a vertically distributed pointer bar (102), and the front end surface of the pointer bar (102) and the rear end surface of the arc ruler (7) are in contact with each other.

Images