A groove measuring device

Abstract

The present invention provides a bevel measurement device, which includes a fixing frame and a positioning ruler, a sector ruler and a main ruler arranged on the fixing frame. The fixing frame is provided with a groove for placing a thick plate to be measured. During the measurement process, by adjusting the positions of the positioning ruler, the sector ruler and the main ruler, the bevel length L, the plate thickness difference t0, and the bevel angle α of the thick plate can be obtained. The bevel measurement device of the present invention has the characteristics of integration, and can complete the measurement of the bevel length L, the plate thickness difference t0, and the bevel angle α simultaneously without the aid of auxiliary tools, solving the problems of many tools, long time consumption, difficult operation, large measurement error, etc. existing in the prior art; moreover, the bevel measurement device provided by the present invention can be directly used for measurement and reading, and the measured data does not need to be subjected to complex conversion, and the data can be obtained immediately after measurement. In addition, the bevel measurement device provided by the present invention has a simple structure, is easy to adjust, has strong versatility, is convenient to operate, and can be effectively operated in a narrow space.

Description

Technical Field

[0001] The invention relates to the field of measurement, and in particular to a groove measuring device. Background Art

[0002] Due to the strength requirements of ship structures and the need to control construction costs, there are a certain number of cases where steel plates of different thicknesses are butt-jointed in the hull structure. According to the specifications of different classification societies, when butt-welding steel plates of different thicknesses, in addition to the conventional butt groove, in order to reduce local strength mutations and stress concentration, the edge of the thick plate that is higher than the thin plate needs to be beveled to make a uniform transition. The resulting plate structure shape is called "transition bevel". Figure 1a As shown, when the plate thickness difference t0 is greater than or equal to 4 mm, the thick plate 7 needs to be beveled, and the bevel length is not less than 4 times the plate thickness difference t0. The schematic diagram of the thick plate 7 and the thin plate 8 after the butt treatment is as shown in Figure 1b shown.

[0003] During the construction process, there are cases where the transition bevel side and the groove side of the thick plate are on the same side. Usually, to ensure the convenience of cutting, the cutting workers first cut the transition bevel according to the designed bevel length, and then cut the butt groove according to the designed angle. Figure 1b As shown in the figure, L represents the bevel length, t0 represents the thickness difference between the thick plate and the thin plate, α represents the groove angle, and the three values ​​are variables. After the cutting is completed, according to the inspection requirements, it is necessary to verify whether the three values ​​of L, t0, and α are consistent with the design values. However, in the actual operation process, the three values ​​need to be obtained separately with the help of multiple measuring tools. For example, the bevel length L and the groove angle α cannot be directly obtained by a single measuring tool. The thickness difference t0 needs to identify the spatial point position and locate it first, and then obtain it through the measuring tool. Therefore, the acquisition of the above three values ​​requires the help of auxiliary tools, and there are problems such as many tools, long time consumption, difficult operation, and large measurement errors. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, the present invention proposes a groove measuring device, including a fixed frame and a positioning ruler, a sector ruler and a main ruler arranged on the fixed frame. The fixed frame has a groove for placing the thick plate to be measured. During the measurement process, the bevel length L, the plate thickness difference t0, and the groove angle α of the thick plate are obtained by adjusting the positions of the positioning ruler, the sector ruler and the main ruler. The groove measuring device of the present invention has the characteristics of integration, and can simultaneously complete the measurement of the bevel length L, the plate thickness difference t0, and the groove angle α without the aid of auxiliary tools, thereby solving the problems of many tools, long time consumption, difficult operation, and large measurement errors existing in the prior art; and the groove measuring device provided by the present invention can be directly used for measurement and reading, and the measured data does not need to be converted complicatedly, and the data can be obtained immediately after measurement. In addition, the groove measuring device provided by the present invention has a simple structure, is easy to adjust, has strong versatility, is easy to operate, and can be effectively operated in a small space.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a groove measuring device, comprising:

[0006] A fixing frame, wherein the two ends of the fixing frame in the length direction are respectively a measuring end and a vertical end, the measuring end is formed with a groove, the groove is an inward concave structure extending from the measuring end to the middle area of ​​the fixing frame, and the groove is used to place the thick plate to be measured;

[0007] The surface of the fixing frame is provided with a first slide groove, a first positioning groove and a second positioning groove, wherein the first slide groove is arranged close to the vertical end and extends from the lower edge of the fixing frame along a vertical direction perpendicular to the length direction, and a first sliding block is arranged in the first slide groove; the first positioning groove is arranged adjacent to the groove, the first positioning groove is a fan-shaped structure with a right central angle, and the lower edge of the first positioning groove is flush with the lower edge of the groove, and the side edge of the first positioning groove coincides with the side edge of the groove; the second positioning groove is arranged on the surface of the fixing frame above the groove, and the bottom edge of the second positioning groove coincides with the upper edge of the groove;

[0008] A positioning ruler, wherein the middle portion of the positioning ruler has a second slide groove extending along the length direction of the positioning ruler; the positioning ruler is sleeved on the first sliding block through the second slide groove, so that the length direction of the positioning ruler is parallel to the length direction of the fixing frame and can move in the length direction, and the first sliding block drives the positioning ruler to move in the first slide groove along the vertical direction;

[0009] A sector ruler, the center of which coincides with the center of the first positioning groove, and the sector ruler is rotatably disposed in the first positioning groove around the center of the sector ruler;

[0010] A main ruler is disposed in the second positioning groove in a manner that the main ruler is movable relative to the groove in the vertical direction.

[0011] Optionally, the side edge of the groove intersects perpendicularly with the lower edge of the groove at a first intersection, and the side edge of the groove intersects perpendicularly with the upper edge of the groove at a second intersection.

[0012] Optionally, the center of the first positioning groove is located at the first intersection.

[0013] Optionally, the second positioning groove is a rectangular structure.

[0014] Optionally, a third slide groove is provided in the sector ruler, and the third slide groove is an arc-shaped structure. A second sliding block is fixed in the first positioning groove, and the third slide groove cooperates with the second sliding block to enable the sector ruler to rotate around the first intersection.

[0015] Optionally, a fourth sliding groove extending along the vertical direction is provided in the main ruler, a third sliding block is fixed in the second positioning groove, and the fourth sliding groove cooperates with the third sliding block to move the main ruler along the vertical direction.

[0016] Optionally, a first length scale is provided on the side edge of the groove, and a zero point of the first length scale is located at the second intersection.

[0017] Optionally, the positioning ruler has a pointer at one end close to the first positioning groove, for indicating the first length scale.

[0018] Optionally, the sector ruler has a first right-angled side, a second right-angled side and an arc side, the arc side has an angle scale, and the first right-angled side indicates 0°, the second right-angled side indicates 90°, and when the sector ruler is in an initial position, the first right-angled side coincides with the side edge of the groove.

[0019] Optionally, a second length scale is provided on the first right-angled side, and a zero point of the second length scale is located at the center of the sector ruler.

[0020] Optionally, a third length scale is provided on the bottom edge of the main ruler, and a zero point of the third length scale is located on a side where the main ruler coincides with a side edge of the groove.

[0021] Optionally, the fixing frame has a lightening hole, and the lightening hole is arranged at the vertical end.

[0022] Optionally, fasteners are provided on the first slider, the second slider and the third slider, wherein the fasteners provided on the first slider are adjusted to fix the positioning ruler, the fasteners provided on the second slider are adjusted to fix the sector ruler, and the fasteners provided on the third slider are adjusted to fix the main ruler.

[0023] The groove measuring device of the present invention has at least the following beneficial effects:

[0024] The groove measuring device provided by the present invention comprises a fixed frame, and a positioning ruler, a sector ruler and a main ruler arranged on the fixed frame. The fixed frame has a groove for placing the thick plate to be measured. During the measurement process, the bevel length L, the plate thickness difference t0, and the groove angle α of the thick plate are obtained by adjusting the positions of the positioning ruler, the sector ruler and the main ruler. The groove measuring device of the present invention has the characteristics of integration, and can simultaneously complete the measurement of the bevel length L, the plate thickness difference t0, and the groove angle α without the aid of auxiliary tools, thereby solving the problems of many tools, long time consumption, difficult operation, and large measurement errors existing in the prior art; and the groove measuring device provided by the present invention can be directly used for measurement and reading, and the measured data does not need to be converted complicatedly, and the data can be obtained immediately after measurement. In addition, the groove measuring device provided by the present invention has a simple structure, is easy to adjust, has strong versatility, is easy to operate, and can be effectively operated in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1a Shown is a schematic diagram of thick and thin plates before butt jointing.

[0026] Figure 1b It shows a schematic diagram of the thick plate and the thin plate after the butt joint process.

[0027] Figure 2 Shown is a schematic structural diagram of a groove measuring device provided in an embodiment.

[0028] Figure 3 Shown is a schematic diagram of the structure of a fixed frame in a groove measuring device.

[0029] Figure 4 Shown is a diagram showing the working principle of the groove measuring device provided in the embodiment.

[0030] Component number description

[0031] 1 Fixed frame 20 Second slide

[0032] 2 Positioning ruler 21 Pointer

[0033] 3 Sector ruler 120 First slide

[0034] 4 Main ruler 121 Fasteners

[0035] 5 Lightening hole 30 Third chute

[0036] 6 Handle 31 First right angle side

[0037] 7 Thick plate 32 Second right angle side

[0038] 8 Thin plate 33 arc edge

[0039] 11 groove 130 second slider

[0040] 111 Upper edge of the groove 300 Second length scale

[0041] 112 side edge of the groove 40 fourth slide groove

[0042] 113 lower edge of the groove 140 third slider

[0043] 100 First length scale 400 Third length scale

[0044] 101 First intersection point 71 Upper side of thick plate

[0045] 102 Second intersection 72 Transition oblique side of thick plate

[0046] 12 First chute 73 Bevel side of thick plate

[0047] 13 First positioning groove 74 Lower side of thick plate

[0048] 14 Second positioning slot DETAILED DESCRIPTION

[0049] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0050] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Although the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation, the form, quantity, positional relationship and proportion of each component in actual implementation can be changed at will under the premise of realizing the technical solution of this party, and the component layout form may also be more complicated.

[0051] Example

[0052] This embodiment provides a groove measuring device, such as Figure 2As shown, it includes a fixing frame 1, a positioning ruler 2, a sector ruler 3 and a main ruler 4.

[0053] like Figure 3 As shown, in the length direction of the fixing frame 1 (i.e. Figure 3 The two ends of the measuring end and the vertical end are respectively, for example, the left side is the vertical end and the right side is the measuring end. The measuring end is formed with a groove 11, which is an inward concave structure extending from the measuring end to the middle area of ​​the fixing frame, and is used to place the thick plate to be measured. The side edge 112 of the groove 11 and the lower edge 113 of the groove intersect vertically at the first intersection 101, and the side edge 112 of the groove and the upper edge 111 of the groove intersect vertically at the second intersection 102. The side edge 112 of the groove has a first length scale 100, and the zero point of the first length scale 100 is located at the second intersection 102.

[0054] like Figure 3 As shown, a first sliding groove 12 , a first positioning groove 13 and a second positioning groove 14 are provided on the surface of the fixing frame 1 .

[0055] As an example, the first slide slot 12 is disposed near the vertical end of the fixing frame and extends in the vertical direction (ie Figure 3 The first slide groove 12 is provided with a first slider 120, and the first slider 120 can move in the vertical direction in the first slide groove 12. Since the positioning ruler 2 can be sleeved on the first slider 120, and the first slider 120 can drive the positioning ruler 2 to move in the vertical direction in the first slide groove 12, in other optional embodiments, the number of the first slide grooves 12 can be set to be multiple, for example, two first slide grooves 12 are arranged in parallel, and the number of the first sliders 120 is the same as the number of the first slide grooves 12, that is, the positioning ruler 2 is sleeved on the two first sliders 120 at the same time, so that the stability of the sliding can be improved.

[0056] As an example, the first positioning groove 13 is arranged adjacent to the groove 11, and the first positioning groove 13 is a fan-shaped structure with a central angle of right angles, and the lower edge of the first positioning groove 13 is flush with the lower edge 113 of the groove, and the side edge of the first positioning groove 13 coincides with the side edge 112 of the groove.

[0057] As an example, the second positioning groove 14 is disposed on the surface of the fixing frame 1 above the groove 11 , and the bottom edge of the second positioning groove 14 coincides with the upper edge 111 of the groove. In this embodiment, the second positioning groove 14 is a rectangular structure.

[0058] like Figure 3As shown, the vertical end of the fixing frame 1 is also provided with a lightening hole 5 for reducing the weight of the measuring device. A handle 6 is formed near the edge of the fixing frame 1 near the lightening hole 5 for improving operability during use. As an example, except for the first intersection 101 and the second intersection 102, the adjacent ends of the edge of the fixing frame 1 are all processed with arc transition to avoid sharp structures and extend the life of the device.

[0059] Reference Figure 2 As shown, the middle part of the positioning ruler 2 has a longitudinal direction (i.e. Figure 2 As an example, the positioning ruler 2 is sleeved on the first slider 120 through the second slide groove 20, so that the length direction of the positioning ruler 2 is parallel to the length direction of the fixing frame 1, and the positioning ruler 2 can be in the length direction (i.e. Figure 2 In addition, the first slider 120 can also drive the positioning ruler 2 to move in the first slide groove 12 along the vertical direction. As an example, the first slider 120 is also provided with a fastener 121, and the tightness between the positioning ruler 2 and the first slide groove 12 can be adjusted by adjusting the fastener 121. In this embodiment, the fastener 121 includes a bolt and a nut.

[0060] like Figure 2 As shown, the positioning ruler 2 has a pointer 21 at one end close to the first positioning groove 13 . When the positioning ruler 2 moves along the first slide groove 12 to be on the same horizontal plane as the groove 11 , the pointer 21 can accurately indicate the first length scale 100 .

[0061] Reference Figure 2 and Figure 3 As shown, a sector ruler 3 is installed in the first positioning groove 13, and the center of the sector ruler 3 coincides with the center of the first positioning groove 13, and both are located at the first intersection 101. As an example, the sector ruler 3 is arranged in the first positioning groove 13 in a rotatable manner around the first intersection 101. A third slide groove 30 is arranged in the sector ruler 3, and the third slide groove 30 is an arc-shaped structure. A second slider 130 is fixed in the first positioning groove 13, and the third slide groove 30 cooperates with the second slider 130 to enable the sector ruler 3 to rotate around the first intersection 101. As an example, a fastener 121 is also arranged on the second slider 130, and the tightness between the sector ruler 3 and the first positioning groove 13 can be adjusted by adjusting the fastener 121. In this embodiment, the fastener 121 includes a bolt and a nut.

[0062] like Figure 2As shown, the sector ruler 3 has a first right-angled side 31, a second right-angled side 32 and an arc side 33. The arc side 33 has an angle scale, and the angle scale indicates 0° at the intersection of the arc side 33 and the first right-angled side 31, and indicates 90° at the intersection of the arc side 33 and the second right-angled side 32. When the sector ruler 3 is in the initial position, the first right-angled side 31 coincides with the side edge 112 of the groove. The first right-angled side 31 has a second length scale 300, and the zero point of the second length scale 300 is located at the center of the sector ruler 3, that is, at the first intersection 101.

[0063] Reference Figure 2 and Figure 3 As shown, the main ruler 4 is in the vertical direction (i.e. Figure 2 The main ruler 4 is provided with a fourth slide groove 40 extending in the vertical direction, and a third slider 140 is fixed in the second positioning groove 14. The fourth slide groove 40 cooperates with the third slider 140 to enable the main ruler 4 to move in the vertical direction. As an example, a fastener 121 is also provided on the third slider 140, and the tightness between the main ruler 4 and the second positioning groove 14 can be adjusted by adjusting the fastener 121. In this embodiment, the fastener 121 includes a bolt and a nut.

[0064] like Figure 2 As shown, a third length scale 400 is provided on the bottom edge of the main ruler 4, and the zero point of the third length scale 400 is located at the side of the main ruler 4 that coincides with the side edge 112 of the groove.

[0065] In other optional embodiments, in order to avoid interference between the sector ruler 3 and the main ruler 4 during use, the first positioning groove 13 and the second positioning groove 14 may be respectively arranged on the front and back sides of the fixing frame 1 .

[0066] The working principle of the groove measuring device provided in this embodiment is as follows:

[0067] Reference Figure 1b As shown, the thick plate 7 includes an upper side 71, a transition oblique side 72, a groove side 73 and a lower side 74 of the thick plate 7. Figure 4 As shown, firstly, the thick plate 7 to be measured is placed in the groove 11 of the groove measuring device, so that the lower side 74 of the thick plate 7 contacts the lower edge 113 of the groove, and the intersection of the groove side 73 and the lower side 74 of the thick plate is located at the first intersection 101, thereby completing the positioning of the measuring device.

[0068] Then, if Figure 4As shown, the main ruler 4 is moved in the vertical direction until the bottom edge of the main ruler 4 contacts the upper side 71 of the thick plate 7; the sector ruler 3 is rotated around the first intersection 101 until the first right-angled side 31 of the sector ruler 3 contacts the groove side 73 of the thick plate 7; the positioning ruler 2 is moved in the vertical and horizontal directions so that the pointer 21 of the positioning ruler 2 is aligned with the intersection of the groove side 73 of the thick plate and the transition oblique side 72, thereby completing the adjustment of the measuring device.

[0069] Finally, read the scale value of the intersection of the upper side 71 of the thick plate and the transition oblique side 72 on the third length scale 400 to obtain the bevel length L of the thick plate 7; read the angle scale value at the intersection of the arc edge 33 of the sector ruler and the side end face 112 of the groove to obtain the groove angle α of the thick plate; read the value t1 of the first length scale 100 indicated by the pointer 21 of the positioning ruler, read the value t2 of the first length scale 100 indicated by the bottom edge of the main ruler 4, and subtract the two to obtain the plate thickness difference t0. As an example, during the reading process, the fasteners 121 on the first slider 120, the second slider 130, and the third slider 140 can be locked respectively to fix the positions of the positioning ruler 2, the sector ruler 3, and the main ruler 4, remove the thick plate 7 to be measured, and then read. In an optional embodiment, the parameter value of the thick plate obtained by actual measurement can also be compared with its theoretical value to verify the accuracy of the groove opening of the thick plate.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A groove measuring device, characterized in that: include: A fixing frame, wherein the two ends of the fixing frame in the length direction are respectively a measuring end and a vertical end, the measuring end is formed with a groove, the groove is an inward concave structure extending from the measuring end to the middle area of ​​the fixing frame, and the groove is used to place the thick plate to be measured; The surface of the fixing frame is provided with a first slide groove, a first positioning groove and a second positioning groove, wherein the first slide groove is arranged close to the vertical end and extends from the lower edge of the fixing frame along a vertical direction perpendicular to the length direction, and a first sliding block is arranged in the first slide groove; the first positioning groove is arranged adjacent to the groove, the first positioning groove is a fan-shaped structure with a right central angle, and the lower edge of the first positioning groove is flush with the lower edge of the groove, and the side edge of the first positioning groove coincides with the side edge of the groove; the second positioning groove is arranged on the surface of the fixing frame above the groove, and the bottom edge of the second positioning groove coincides with the upper edge of the groove; A positioning ruler, wherein the middle portion of the positioning ruler has a second slide groove extending along the length direction of the positioning ruler; the positioning ruler is sleeved on the first sliding block through the second slide groove, so that the length direction of the positioning ruler is parallel to the length direction of the fixing frame and can move in the length direction, and the first sliding block drives the positioning ruler to move in the first slide groove along the vertical direction; A sector ruler, the center of which coincides with the center of the first positioning groove, and the sector ruler is rotatably disposed in the first positioning groove around the center of the sector ruler; A main ruler is disposed in the second positioning groove in a manner that the main ruler is movable relative to the groove in the vertical direction.

2. The groove measuring device according to claim 1, characterized in that: The side edge of the groove intersects perpendicularly with the lower edge of the groove at a first intersection, and the side edge of the groove intersects perpendicularly with the upper edge of the groove at a second intersection.

3. The groove measuring device according to claim 2, characterized in that: The center of the first positioning groove is located at the first intersection.

4. The groove measuring device according to claim 1, characterized in that: The second positioning groove is a rectangular structure.

5. The groove measuring device according to claim 2, characterized in that: The sector ruler is provided with a third slide groove, which is an arc-shaped structure. A second sliding block is fixed in the first positioning groove. The third slide groove cooperates with the second sliding block to enable the sector ruler to rotate around the first intersection.

6. The groove measuring device according to claim 5, characterized in that: The main ruler is provided with a fourth slide groove extending along the vertical direction, the second positioning groove is fixed with a third sliding block, and the fourth slide groove cooperates with the third sliding block to move the main ruler along the vertical direction.

7. The groove measuring device according to claim 2, characterized in that: A first length scale is provided on the side edge of the groove, and a zero point of the first length scale is located at the second intersection.

8. The groove measuring device according to claim 7, characterized in that: The positioning ruler has a pointer at one end close to the first positioning groove, for indicating the first length scale.

9. The groove measuring device according to claim 1, characterized in that: The fan-shaped ruler has a first right-angled side, a second right-angled side and an arc side, the arc side has an angle scale, and the first right-angled side indicates 0°, the second right-angled side indicates 90°, and when the fan-shaped ruler is in an initial position, the first right-angled side coincides with the side edge of the groove.

10. The groove measuring device according to claim 9, characterized in that: The first right-angled side has a second length scale, and the zero point of the second length scale is located at the center of the sector ruler.

11. The groove measuring device according to claim 1, characterized in that: A third length scale is provided on the bottom edge of the main ruler, and a zero point of the third length scale is located at a side where the main ruler coincides with a side edge of the groove.

12. The groove measuring device according to claim 1, characterized in that: The fixing frame is provided with a lightening hole, and the lightening hole is arranged at the vertical end.

13. The groove measuring device according to claim 6, characterized in that: The first slider, the second slider and the third slider are all provided with fasteners, wherein the fasteners provided on the first slider are adjusted to fix the positioning ruler, the fasteners provided on the second slider are adjusted to fix the sector ruler, and the fasteners provided on the third slider are adjusted to fix the main ruler.

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