Flatness and straightness field detection device suitable for large-plane workpiece

Abstract

The utility model relates to an on-site flatness and straightness detection device suitable for a large-plane workpiece, which comprises a base, a reference module and a detection part, a horizontal material placing surface is formed on the upper surface of the base, the reference module is arranged on the material placing surface, the detection part is provided with a detection end part, a first reference surface is formed on one side of the reference module, and a second reference surface is formed on the upper surface of the reference module; a workpiece is placed on the material placing surface and abuts against the first reference surface, and the workpiece can horizontally move step by step along the first reference surface; the detection part is installed on the second reference surface, and the detection end portion is in downward contact with the upper surface of the workpiece and can linearly move in a reciprocating mode in the horizontal direction. On one hand, based on the cooperation of the material placing surface, the first reference surface and the second reference surface, the workpiece and the detection end part are accurately positioned, the straightness and flatness of the workpiece are measured during the horizontal movement of the workpiece and the detection end part, the operation is convenient, and the detection precision is high; and on the other hand, the structure is simple, assembly and implementation are convenient, and the field detection requirement is flexibly met.

Description

Technical Field

[0001] This utility model belongs to the field of testing devices, specifically relating to an on-site testing device for the flatness and straightness of large flat workpieces. Background Technology

[0002] Photovoltaic product carriers, due to their large area and long reinforcing strips, need to maintain flatness and straightness after repeated use at high temperatures. Therefore, during processing and repeated baking experiments, it is necessary to repeatedly measure and accurately record data.

[0003] However, in actual measurement, flatness and straightness measurement generally require the use of coordinate measuring machines (CMMs). The CMMs used in this method are not real-time measuring instruments (mainly used in laboratories), which are not convenient for on-site measurement and are only suitable for verification. Therefore, it is urgent to design a detection device suitable for on-site measurement of the flatness and straightness of large flat workpieces. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a brand-new on-site testing device for the flatness and straightness of large flat workpieces.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A device for on-site testing of flatness and straightness of large flat workpieces includes a base with a horizontal placement surface formed from its upper surface, a reference module disposed on the placement surface, and a testing component with a testing end. The reference module forms a first reference surface from one side and a second reference surface from its upper surface. The workpiece is placed on the placement surface and abuts against the first reference surface, and the workpiece can move horizontally along the first reference surface step by step. The testing component is mounted on the second reference surface, and its testing end contacts the upper surface of the workpiece downwards and is configured to reciprocate linearly along the horizontal direction. In the orthographic projection on the horizontal plane, the movement direction of the testing end intersects the movement direction of the workpiece. It should be noted that when the workpiece is placed on the placement surface and abuts against the first reference surface, the straightness of the upper surface of the workpiece is measured through the linear movement of the testing end; as the workpiece moves step by step, the flatness / straightness of the upper surface of the workpiece is measured through the step-by-step reciprocating linear movement of the testing end.

[0007] Preferably, in the orthographic projection on the horizontal plane, the movement direction of the detection end is set perpendicular to the movement direction of the workpiece.

[0008] Preferably, the reference module includes a first block and a second block arranged side by side at intervals, wherein the inner surface of the first block and / or the second block forms a first reference surface. When the workpiece is placed on the placement surface, the workpiece abuts against the first reference surface from one side or opposite sides. Both the first block and the second block are cuboid in shape. Here, the arrangement of the first and second blocks at intervals facilitates the positioning and movement guidance of the workpiece, and the operation is simple and convenient.

[0009] Preferably, the upper surfaces of the first and second blocks are flush and form a second reference plane, and the detection end reciprocates between the first and second blocks. This further improves the motion accuracy of the detection end and ensures the accuracy of the detection results.

[0010] Specifically, the detection component includes guide rails fixedly connected at both ends to the tops of the first and second blocks, a slider slidably connected to the guide rails, and a detector fixedly connected to the slider and having a detection end. In other words, the base, guide rails, first and second blocks form a material placement channel. The workpiece is placed in the material placement channel and moves horizontally along a direction perpendicular to the length of the guide rails. The detection end extends downward into the material placement channel and measures the flatness / straightness of the workpiece's upper surface. This design is simple and easy to install and implement.

[0011] Furthermore, the center lines of the guide rail, the first block, and the second block are set parallel or coincident. This facilitates precise control of the movement direction of the detection end.

[0012] Preferably, the detector uses a dial indicator or a micrometer. The choice between a dial indicator and a micrometer depends on the product's accuracy requirements, offering great flexibility.

[0013] Preferably, the detection component further includes a lateral detector slidably connected to the guide rail for detecting the straightness of the workpiece's side surface. Here, when it is necessary to detect the straightness of the workpiece's side surface, the lateral detector can be used flexibly to achieve multi-functional detection.

[0014] Specifically, a third reference surface adjacent to the first reference surface is formed on one side of the first block and / or the second block. During detection, the workpiece rests against the third reference surface, and the detection end of the lateral detector contacts the side of the workpiece horizontally and moves back and forth along the guide rail.

[0015] In addition, the base is a granite platform or a machine tool platform. Both granite platforms and machine tool platforms used here are common on-site work platforms, readily available, and meet the testing needs anytime, anywhere on-site.

[0016] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] Existing technologies for flatness and straightness measurement generally require the use of coordinate measuring machines (CMMs). However, the CMMs used in this method are not real-time measuring instruments (mainly used in laboratories), making them inconvenient for on-site measurement and only suitable for verification. This application, however, proposes an overall structural design for an on-site flatness and straightness testing device suitable for large flat workpieces, cleverly addressing the shortcomings and defects of existing technologies. With this testing device, the workpiece is placed on the base's placement surface, with one side abutting against the first reference surface to position it. Then, the testing end, formed by a testing component mounted on the second reference surface, contacts the upper surface of the workpiece. The straightness of the upper surface is measured during the horizontal linear movement of the testing end. Simultaneously, as the workpiece gradually moves horizontally along the first reference surface, with the direction of movement intersecting the orthographic projection of the testing end's movement direction on the horizontal plane, the gradual horizontal linear movement of the testing end achieves the measurement of the flatness / straightness of the upper surface of the workpiece. Therefore, compared with the prior art, this utility model, on the one hand, accurately positions the workpiece and the detection end based on the cooperation of the material placement surface, the first reference surface and the second reference surface, and realizes the measurement of the straightness and flatness of the workpiece during the horizontal movement of the workpiece and the detection end, which is convenient to operate and has high detection accuracy; on the other hand, it has a simple structure, is easy to assemble and implement, and flexibly meets the needs of on-site testing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the on-site testing device for the flatness and straightness of large flat workpieces according to this utility model;

[0019] Figure 2 This is a front view schematic diagram of the on-site testing device for flatness and straightness of large flat workpieces according to this utility model;

[0020] Figure 3 for Figure 2 A top-down view;

[0021] Wherein: 1. Base; m0, Material placement surface;

[0022] 2. Reference module; 21. First block; 22. Second block; m1. First reference plane; m2. Second reference plane; m3. Third reference plane;

[0023] 3. Detection component; 30. Guide rail; 31. Slider; 32. Detector; d. Detection end; 33. Lateral detector; t. Material feeding channel. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0029] like Figures 1 to 3 As shown, the flatness and straightness field testing device for large flat workpieces involved in this embodiment includes a base 1, a reference module 2, and a testing component 3.

[0030] Specifically, the base 1 forms a horizontal material placement surface m0 from its upper surface, and the workpiece G is placed flat on the material placement surface m0; the reference module 2 is set on the material placement surface m0, and the reference module 2 forms a first reference surface m1 from one side and a second reference surface m2 from its upper surface. The workpiece G placed on the material placement surface m0 abuts against the first reference surface m1 and can move horizontally along the first reference surface m1 step by step; the detection component 3 is installed on the second reference surface m2 and has a detection end d, and the detection end d contacts the upper surface of the workpiece G downward and can be set to reciprocate linearly along the horizontal direction. In the orthographic projection on the horizontal plane, the movement direction of the detection end d intersects with the movement direction of the workpiece G.

[0031] It should be noted that when the workpiece G is placed on the material placement surface m0 and abuts against the first reference surface m1, the straightness of the upper surface of the workpiece G is measured by the linear motion of the detection end d; as the workpiece G moves gradually, the flatness / straightness of the upper surface of the workpiece G is measured by the gradual reciprocating linear motion of the detection end d.

[0032] In this example, base 1 can be a granite platform or machine tool platform available on-site. Both granite platforms and machine tool platforms are common on-site work platforms, readily available, and can meet the on-site testing needs anytime, anywhere.

[0033] In this example, the reference module 2 includes a first block 21 and a second block 22 arranged side-by-side and spaced apart. The inner surfaces of the first block 21 and / or the second block 22 form a first reference surface m1. When the workpiece G is placed on the placement surface m0, the workpiece G abuts against the first reference surface m1 from one side or opposite sides. The upper surfaces of the first block 21 and the second block 22 are flush and form a second reference surface m2. The detection end d reciprocates between the first block 21 and the second block 22, and in the orthographic projection on the horizontal plane, the movement direction of the detection end d is perpendicular to the movement direction of the workpiece G. Both the first block 21 and the second block 22 are cuboid in shape. Here, the arrangement of the first and second blocks spaced apart facilitates the positioning and movement guidance of the workpiece, and the operation is simple and convenient.

[0034] In some specific embodiments, the distance between the first block 21 and the second block 22 is greater than the length of the workpiece G, and the workpiece G abuts against any one of the first reference surfaces m1 of the first block 21 and the second block 22 from one side.

[0035] In this example, the detection component 3 includes a guide rail 30 with both ends fixedly connected to the top of the first block 21 and the second block 22, a slider 31 slidably connected to the guide rail 30, and a detector 32 fixedly connected to the slider 31 and having a detection end d. That is, the base 1, the guide rail 30, the first block 21 and the second block 22 form a material placement channel t. The workpiece G is placed in the material placement channel t and moves horizontally along the length direction perpendicular to the guide rail 30. The detection end d extends downward into the material placement channel t and measures the flatness / straightness of the upper surface of the workpiece G.

[0036] In some specific embodiments, the center lines of the guide rail 30, the first block 21, and the second block 22 are set parallel or coincident; the guide rail 30 adopts a linear guide rail specifically for on-site machine tools; depending on the accuracy requirements of the product, the detector 32 can be flexibly selected as a dial indicator or a dial gauge.

[0037] To further facilitate implementation, the detection component 3 also includes a lateral detector 33 that is slidably connected to the guide rail 30 and used to detect the straightness of the side of the workpiece G. Here, when it is necessary to detect the straightness of the workpiece side, the lateral detector can be used flexibly to achieve multi-functional detection.

[0038] Specifically, a third reference surface m3 adjacent to the first reference surface m1 is formed on one side of the first block 21 and / or the second block 22. During detection, the workpiece G abuts against the third reference surface m3 on one or both sides, and the detection end of the lateral detector 33 makes horizontal contact with the side of the workpiece G and moves back and forth linearly along the guide rail 30. The lateral detector 33 is a dial indicator or a micrometer indicator, and the connection method between the lateral detector 33 and the guide rail 30 is the same as that of the detector 32.

[0039] In summary, by adopting this detection device, the workpiece is placed on the material placement surface of the base, with one side abutting against the first reference surface to position the workpiece. Then, the detection end formed by the detection component mounted on the second reference surface contacts the upper surface of the workpiece, and the straightness of the upper surface of the workpiece is measured during the horizontal linear movement of the detection end. Simultaneously, as the workpiece gradually moves horizontally along the first reference surface, and the projection of the movement direction of the detection end onto the horizontal plane intersects with the movement direction of the detection end, the gradual horizontal linear movement of the detection end achieves the measurement of the flatness / straightness of the upper surface of the workpiece. Therefore, compared with the prior art, this invention, on the one hand, accurately positions the workpiece and the detection end based on the cooperation of the material placement surface, the first reference surface, and the second reference surface, and achieves the measurement of the straightness and flatness of the workpiece during the horizontal movement of the workpiece and the detection end, making operation convenient and detection accuracy high; on the other hand, it has a simple structure, is easy to assemble and implement, and flexibly meets on-site detection needs.

[0040] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A device for on-site testing of flatness and straightness of large flat workpieces, characterized in that, It includes a base with a horizontal material placement surface formed from its upper surface, a reference module disposed on the material placement surface, and a detection component with a detection end. The reference module forms a first reference surface from one side and a second reference surface from its upper surface. The workpiece is placed on the material placement surface and abuts against the first reference surface, and the workpiece can move horizontally step by step along the first reference surface. The detection component is mounted on the second reference surface, and the detection end contacts the upper surface of the workpiece downward and is configured to reciprocate linearly along the horizontal direction. In the orthographic projection on the horizontal plane, the movement direction of the detection end intersects the movement direction of the workpiece.

2. The on-site testing device for flatness and straightness of large flat workpieces according to claim 1, characterized in that, In the orthographic projection on the horizontal plane, the movement direction of the detection end is set perpendicular to the movement direction of the workpiece.

3. The on-site testing device for flatness and straightness of large flat workpieces according to claim 1, characterized in that, The reference module includes a first block and a second block arranged side by side at intervals, wherein the inner side of the first block and / or the second block forms the first reference surface. When the workpiece is placed on the placement surface, the workpiece abuts against the first reference surface from one side or opposite sides.

4. The on-site testing device for flatness and straightness of large flat workpieces according to claim 3, characterized in that, The upper surfaces of the first block and the second block are flush and form the second reference surface, and the detection end reciprocates between the first block and the second block.

5. The on-site testing device for flatness and straightness of large flat workpieces according to claim 4, characterized in that, The detection component includes a guide rail fixedly connected to the top of the first block and the second block at both ends, a slider slidably connected to the guide rail, and a detector fixedly connected to the slider and having the detection end. The base, guide rail, first block and second block form a material placement channel. The workpiece is placed in the material placement channel and moves horizontally along the length direction perpendicular to the guide rail. The detection end extends downward into the material placement channel.

6. The on-site testing device for flatness and straightness of large flat workpieces according to claim 5, characterized in that, The centerline of the guide rail, the centerline of the first block, and the centerline of the second block are arranged parallel or coincident.

7. The on-site testing device for flatness and straightness of large flat workpieces according to claim 5, characterized in that, The detector uses a dial indicator or a percentage indicator.

8. The on-site testing device for flatness and straightness of large flat workpieces according to claim 5, characterized in that, The detection component also includes a lateral detector that is slidably connected to the guide rail and used to detect the straightness of the workpiece side.

9. The on-site testing device for flatness and straightness of large flat workpieces according to claim 8, characterized in that, A third reference surface adjacent to the first reference surface is also formed on one side of the first block and / or the second block. During detection, the workpiece abuts against the third reference surface, and the detection end of the lateral detector contacts the side of the workpiece horizontally and moves back and forth along the guide rail.

10. The on-site testing device for flatness and straightness of large flat workpieces according to claim 1, characterized in that, The base is a granite platform or a machine tool platform.

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