Digital reading type flatness measuring device

Abstract

The utility model discloses a numerical reading type planeness measuring device, which comprises an aluminum magnesium leveling ruler, a graduated scale and standard blocks, the aluminum magnesium leveling ruler is horizontally placed, the standard blocks are arranged at the bottoms of the two ends of the aluminum magnesium leveling ruler, the graduated scale is provided with long round holes, at least two bolts penetrate through the long round holes to vertically fix the graduated scale on the aluminum magnesium leveling ruler between the two standard blocks, and the bolts are connected with the graduated scale. Scales are arranged on the two sides of a zero graduation line on the graduation ruler, and when the bottom of the graduation ruler and the bottom of the standard block are located on the same horizontal plane, the zero graduation line of the graduation ruler is flush with the upper plane of the aluminum-magnesium leveling ruler. The graduated scale can move up and down on the aluminum-magnesium leveling ruler under the guidance of the oblong hole and the bolt, so that the position of the graduated scale on the aluminum-magnesium leveling ruler can be adjusted when the lower part of the graduated scale encounters uneven planes such as a recess and a bulge, and the graduations on the graduated scale are matched with the aluminum-magnesium leveling ruler to read numerical values such as the recess and the bulge; the use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a digital reading type flatness measuring device. Background Art

[0002] In the process of measuring the flatness of profiles, the existing operation is basically carried out visually or using leveling equipment such as a level meter. After determining the uneven position, other equipment is used to measure the depression and bulge values. This operation method is cumbersome and requires multiple steps to obtain the depression and bulge values. Utility Model Content

[0003] The technical problem to be solved by the utility model is that it is inconvenient to obtain the numerical values ​​of the depression and bulge on the profile plane in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a technical solution: a digital reading type flatness measuring device, comprising an aluminum-magnesium flat ruler, a scale and a standard block, characterized in that: the aluminum-magnesium flat ruler is placed horizontally, and the standard blocks are arranged at the bottom of both ends thereof, the scale is provided with an oblong hole, and bolts pass through the oblong hole to vertically fix the scale on the aluminum-magnesium flat ruler between the two standard blocks, the bolts are at least two, so that the scale can slide up and down along the oblong hole, scales are arranged on both sides of the zero scale line on the scale, and when the bottom of the scale and the bottom of the standard block are in the same horizontal plane, the zero scale line of the scale is aligned with the upper plane of the aluminum-magnesium flat ruler.

[0005] Furthermore, the overall flatness of the upper and lower parts of the aluminum-magnesium ruler is ≤0.02mm.

[0006] Furthermore, the bottom of the scale is a triangular structure with the top angle facing downward.

[0007] Furthermore, there are at least two scales.

[0008] The beneficial effects of the utility model are:

[0009] The present application achieves the coordination between an aluminum-magnesium ruler, a scale and a standard block. The standard block is used to raise the aluminum-magnesium ruler. The scale can move up and down on the aluminum-magnesium ruler under the guidance of oblong holes and bolts. Thus, when the lower part of the scale encounters an uneven surface such as a depression or bulge, the position of the scale on the aluminum-magnesium ruler can be adjusted. Then, the scale on the scale cooperates with the aluminum-magnesium ruler to read the values ​​of the depression, bulge and the like. The application is convenient and quick to use.

[0010] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only three of the drawings in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic diagram of the structure of this application.

[0013] Figure 2 It is a structural diagram when the bottom of the scale and the bottom of the standard block are at the same horizontal plane.

[0014] Figure 3 for Figure 2 A partial enlarged view of the zero mark of the middle scale aligned with the upper plane of the aluminum-magnesium flat ruler.

[0015] In the figure, 1-aluminum-magnesium ruler, 2-scale ruler, 3-standard block, 4-oblong hole, 5-bolt, 6-scale. DETAILED DESCRIPTION

[0016] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0017] In the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0018] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information. Embodiment 1

[0019] like Figure 1-3As shown, a digital reading type flatness measuring device comprises an aluminum-magnesium ruler 1, a scale 2 and a standard block 3. The aluminum-magnesium ruler 1 is placed horizontally (the overall flatness of the upper and lower parts of the aluminum-magnesium ruler 1 is ≤0.02 mm to ensure the accuracy of the measuring tool), and standard blocks 3 are arranged at the bottom of both ends thereof. The scale 2 is provided with oblong holes 4, and bolts 5 pass through the oblong holes 4 to vertically fix the scale 2 on the aluminum-magnesium ruler 1 between the two standard blocks 3. There are at least two bolts 5, so that the scale 2 can slide up and down along the oblong holes 4. Scales 6 are arranged on both sides of the zero scale line on the scale 2. When the bottom of the scale 2 and the bottom of the standard block 3 are in the same horizontal plane, the zero scale line of the scale 2 is aligned with the upper plane of the aluminum-magnesium ruler 1.

[0020] Since the standard block 3 has a certain thickness, when the aluminum-magnesium ruler 1 is placed on the profile plane through the standard block 3, when the bottom of the scale 2 and the bottom of the standard block 3 are in the same horizontal plane, the zero scale line of the scale 2 is aligned with the upper plane of the aluminum-magnesium ruler 1. Since the scale 2 can move up and down, when the scale 2 encounters a groove or a bulge, the scale 2 follower moves up and down to achieve the misalignment of the zero scale line of the scale 2 and the upper plane of the aluminum-magnesium ruler 1, so that the values ​​of the depression and bulge can be quickly obtained.

[0021] Among them, the bottom of the scale 2 is a triangular structure with the top angle facing downward; the top angle reduces the contact area between the scale 2 and the profile plane. When encountering smaller depressions and bulges, especially depressions, the top angle can still extend into the depression to achieve the lowering of the scale 2, complete the flatness measurement, and improve the measurement accuracy and scope of use. Embodiment 2

[0022] like Figure 1 As shown, this embodiment is obtained by further describing the number of technical features such as the scale 2 on the basis of the first embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the first embodiment is that: the scale 2 is at least two.

[0023] In this embodiment, there are at least two scales 2, which are arranged side by side on the aluminum-magnesium long ruler in the same connection manner, thereby expanding the detection area at one time and improving work efficiency.

[0024] The process of using the overall technical solution formed by the above embodiments is as follows: the aluminum-magnesium long ruler is placed on the plane to be tested of the profile through the standard block 3, the bolt 5 is loosened, and the scale 2 naturally drops under the action of gravity so that the top angle contacts the plane to be tested. When encountering a depression or bulge, the scale 2 will automatically move up or down, so that the zero scale line of the scale 2 is misaligned with the upper plane of the aluminum-magnesium flat ruler 1. The value of the depression and bulge can be quickly obtained through the value of the misaligned scale 6, and the value of the misaligned scale 6 is equal to the value of the depression and bulge.

[0025] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A digital reading flatness measuring device, comprising an aluminum-magnesium flat ruler, a scale and a standard block, characterized in that: The aluminum-magnesium ruler is placed horizontally, and the standard blocks are arranged at the bottom of both ends thereof. The scale is provided with oblong holes, and bolts pass through the oblong holes to vertically fix the scale on the aluminum-magnesium ruler between the two standard blocks. There are at least two bolts, so that the scale can slide up and down along the oblong holes. Graduations are arranged on both sides of the zero scale line on the scale. When the bottom of the scale and the bottom of the standard block are in the same horizontal plane, the zero scale line of the scale is aligned with the upper plane of the aluminum-magnesium ruler.

2. A digital reading flatness measuring device according to claim 1, characterized in that: The overall flatness of the upper and lower parts of the aluminum-magnesium ruler is ≤0.02mm.

3. A digital reading type flatness measuring device according to claim 2, characterized in that: The bottom of the scale is a triangular structure with the top angle facing downward.

4. A digital reading type flatness measuring device according to claim 3, characterized in that: There are at least two scales.

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