A flatness inspection tool

Abstract

This utility model relates to the field of inspection fixture technology and discloses a flatness inspection fixture, including: a carrier plate, pressure strip bodies, and a gap detection channel. The carrier plate has a working surface that forms an angle with the horizontal plane to create an inclined sliding plane; at least two pressure strip bodies are arranged parallel to each other along the inclined direction of the carrier plate on the inclined sliding plane; the gap detection channel is formed between the bottom of the pressure strip body and the inclined sliding plane of the carrier plate, extending along the inclined direction of the carrier plate and parallel to the parallel arrangement direction of the pressure strip bodies, and is used to determine the degree of flatness compliance of the workpiece to be inspected by whether it passes smoothly through the gap detection channel.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, specifically a flatness inspection tool. Background Technology

[0002] Flatness inspection typically relies on high-precision instruments such as laser interferometers, coordinate measuring machines, or optical flatness testing equipment. While these methods offer high measurement accuracy, they suffer from drawbacks including high equipment costs, complex operation, and long inspection cycles. Furthermore, they often require specialized technicians for operation and data analysis, making rapid on-site inspection difficult. Additionally, due to their low efficiency, actual production often employs sampling inspection, which cannot guarantee full inspection of all products and carries the risk of missed quality checks.

[0003] Therefore, a flatness inspection tool is urgently needed to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a flatness inspection tool to solve the problem of high cost of product flatness inspection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: 1. A flatness inspection tool, comprising:

[0006] The carrier plate has an angle between its working surface and the horizontal plane to form an inclined sliding plane;

[0007] At least two pressure strip bodies are arranged in parallel along the inclined direction of the carrier plate on the inclined sliding plane of the carrier plate;

[0008] A gap detection channel is formed between the bottom of the pressure strip body and the inclined sliding plane of the carrier plate, extends along the inclined direction of the carrier plate and is parallel to the parallel arrangement direction of the pressure strip body, and is used to determine the degree of flatness qualification of the workpiece to be inspected by whether it passes smoothly.

[0009] As a preferred embodiment of a flatness inspection tool, the gap detection channel includes a support datum, a constraint datum, and a channel height. The support datum is formed by the inclined sliding plane of the carrier plate, the constraint datum is formed by the bottom of the pressure strip body, the support datum is parallel to the constraint datum, and the channel height is the vertical distance between the support datum and the constraint datum.

[0010] As a preferred embodiment of a flatness inspection tool, the gap detection channel further includes side boundaries and channel width. The side boundaries are the inner surfaces of the oppositely arranged pressure strip bodies, with the two inner surfaces parallel to each other. The channel width is the parallel distance between the side boundaries of the two pressure strip bodies.

[0011] As a preferred embodiment of a flatness inspection tool, it further includes a detachable component connected between the pressure strip body and the carrier plate, the detachable component being used to adjust the spacing between the two pressure strip bodies.

[0012] As a preferred embodiment of a flatness inspection tool, the detachable component includes a first mounting hole, a first mating hole, and a first fastener. The first mounting hole is located at both ends of the carrier plate, the first mating hole is located on the surface of the pressure strip body, the size and position of the first mounting hole and the first mating hole are adapted to each other, and the first fastener passes between the first mounting hole and the first mating hole.

[0013] As a preferred embodiment of a flatness inspection tool, it further includes a horizontal base installed at the bottom of the carrier plate, wherein the inclined sliding plane of the carrier plate forms an angle with the horizontal plane of the horizontal base.

[0014] As a preferred embodiment of a flatness inspection tool, the horizontal base and the carrier plate are connected by a connecting plate, which supports the carrier plate.

[0015] As a preferred embodiment of a flatness inspection tool, the connecting plate and the carrier plate are connected by a connecting assembly, which is used to replace the carrier plate.

[0016] As a preferred embodiment of a flatness inspection tool, the connecting assembly includes a second mounting hole, a second mating hole, and a second fastener. The second mounting hole is located in the middle of the carrier plate, and the second mating hole is located at the upper end of the connecting plate. The size and position of the second mounting hole and the second mating hole are adapted to each other, and the second fastener passes between the second mounting hole and the second mating hole.

[0017] As a preferred embodiment of a flatness inspection tool, one end of the pressure strip body that is assembled with the carrier plate has a protruding connecting end, and the protruding connecting end forms a gap with the carrier plate, the gap being a gap detection channel.

[0018] The beneficial effects of this utility model are as follows: by setting the carrier plate as an inclined sliding plane, the workpiece to be inspected is directionally slid by gravity, without the need for additional power drive, which simplifies the inspection fixture structure and reduces energy consumption; at least two pressure strip bodies are arranged in parallel along the inclined direction, forming a gap detection channel extending along the inclined direction between their bottom and the carrier plate, and the flatness qualification can be intuitively judged by whether the workpiece can pass through the channel smoothly. The detection method is simple and efficient, and it is convenient for operators to quickly identify unqualified workpieces. Attached Figure Description

[0019] Figure 1A schematic diagram of the overall structure of a flatness inspection tool provided by this utility model;

[0020] Figure 2 A schematic diagram of the overall structure of a flatness inspection fixture for inspecting workpieces provided by this utility model;

[0021] Figure 3 A schematic diagram of the overall structure of a flatness inspection fixture for detecting the passage of a workpiece provided by this utility model;

[0022] Figure 4 A cross-sectional view of the carrier plate in a flatness inspection fixture provided by this utility model;

[0023] Figure 5 for Figure 4 A partially enlarged schematic diagram of the flatness gauge.

[0024] The following are the labeling elements in the figure:

[0025] 1. Horizontal base; 2. Connecting plate; 3. Carrier plate; 4. Inclined sliding plane; 5. Pressure strip body;

[0026] 6. Gap detection channel;

[0027] 601. Protruding connecting end; 602. Support datum; 603. Constraint datum; 604. Channel height; 605. Side boundary; 606. Channel width;

[0028] 7. Detachable components;

[0029] 701. First mounting hole; 702. First mating hole; 703. First fastener;

[0030] 8. Connecting components;

[0031] 801. Second mounting hole; 802. Second mating hole; 803. Second fastener;

[0032] 9. Inspect the workpiece. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0038] In one embodiment of this utility model, such as Figure 1-5 As shown, a flatness inspection tool is provided, including: a carrier plate 3, pressure strip bodies 5, and a gap detection channel 6. The carrier plate 3 has a working surface that forms an angle with the horizontal plane to create an inclined sliding plane 4; at least two pressure strip bodies 5 are arranged parallel to each other along the inclined direction of the carrier plate 3 on the inclined sliding plane 4; the gap detection channel 6 is formed between the bottom of the pressure strip body 5 and the inclined sliding plane 4 of the carrier plate 3, extends along the inclined direction of the carrier plate 3 and is parallel to the parallel arrangement direction of the pressure strip bodies 5, and is used to determine the degree of flatness compliance of the workpiece 9 to be inspected by whether it passes smoothly through the channel.

[0039] The flatness inspection tool provided by this utility model sets the carrier plate 3 as an inclined sliding plane 4, and uses gravity to achieve the directional sliding of the workpiece 9 to be inspected, without the need for additional power drive, which simplifies the structure of the inspection tool and reduces energy consumption; at least two pressure strip bodies 5 are arranged in parallel along the inclined direction, and a gap detection channel 6 extending along the inclined direction is formed between their bottom and the carrier plate 3. The flatness qualification degree can be intuitively judged by whether the workpiece can pass through the channel smoothly. The detection method is simple and efficient, and it is convenient for operators to quickly identify unqualified workpieces.

[0040] Preferably, the pressure strip body 5 has a protruding connecting end 601 at one end of the mounting plate 3, forming a boss structure. The protruding connecting end 601 and the mounting plate 3 form a gap, which is a gap detection channel 6. The gap is used for the workpiece to pass through. If the workpiece can slide out along the gap, the workpiece is a qualified product. If the workpiece cannot slide out, the workpiece is a defective product.

[0041] Furthermore, the gap detection channel 6 includes a support datum 602, a constraint datum 603, and a channel height 604. The support datum 602 is formed by the inclined sliding plane 4 of the carrier plate 3, and the constraint datum 603 is formed by the bottom of the pressure strip body 5. The support datum 602 and the constraint datum 603 are parallel, and the channel height 604 is the vertical distance between the support datum 602 and the constraint datum 603. The parallel relationship between the support datum 602 and the constraint datum 603 ensures the consistency of the channel height 604 in the extension direction, avoiding detection errors caused by uneven channel height 604, and effectively improving the accuracy of flatness detection.

[0042] In this embodiment, the channel height 604 is 1.4 ± 0.02. If the flatness of the product is greater than 0.2, it cannot pass through the channel height 604.

[0043] Preferably, the gap detection channel 6 further includes a side boundary 605 and a channel width 606. The side boundary 605 is the inner surface of the oppositely arranged pressure strip bodies 5, with the two inner surfaces parallel to each other. The channel width 606 is the parallel distance between the side boundaries 605 of the two pressure strip bodies 5. Preferably, this design gives the gap detection channel 6 a clear limiting structure in both the height and width directions, further improving the consistency and accuracy of the detection.

[0044] Furthermore, the flatness inspection tool also includes a detachable component 7 connected between the pressure strip body 5 and the carrier plate 3. The detachable component 7 is used to adjust the distance between the two pressure strip bodies 5.

[0045] Specifically, the detachable component 7 includes a first mounting hole 701, a first mating hole 702, and a first fastener 703 (such as a screw). The first mounting hole 701 is opened at both ends of the carrier plate 3, and the first mating hole 702 is opened on the surface of the pressure strip body 5. The hole size and position of the first mounting hole 701 and the first mating hole 702 are adapted to each other. The first fastener 703 passes between the first mounting hole 701 and the first mating hole 702.

[0046] To meet the testing requirements of workpieces of different specifications, the relative positions of the pressure strip bodies 5 can be adjusted by unscrewing the first fastener 703, and then the pressure strip bodies 5 can be fixed on the carrier plate 3 using the first fastener 703.

[0047] The flatness inspection fixture also includes a horizontal base 1, which is installed at the bottom of the carrier plate 3. The inclined sliding plane 4 of the carrier plate 3 forms an angle with the horizontal plane of the horizontal base 1. The angle can be fixed according to the actual situation to ensure that the workpiece can slide smoothly out of the gap detection channel 6 due to gravity.

[0048] In this flatness inspection tool, the horizontal base 1 and the carrier plate 3 are connected by a connecting plate 2, which is used to support the carrier plate 3.

[0049] In this embodiment, the connecting plate 2 can be a hollow structure, which ensures the structural stability of the connecting plate 2 while reducing the mass of the inspection tool and saving the material cost of manufacturing the inspection tool.

[0050] This flatness inspection tool has a connecting plate 2 and a carrier plate 3 connected by a connecting component 8, which is used to replace the carrier plate 3.

[0051] The flatness inspection tool has a connecting component 8 including a second mounting hole 801, a second mating hole 802, and a second fastener 803. The second mounting hole 801 is located in the middle of the carrier plate 3, and the second mating hole 802 is located at the upper end of the connecting plate 2. The hole size and position of the second mounting hole 801 and the second mating hole 802 are adapted to each other. The second fastener 803 passes between the second mounting hole 801 and the second mating hole 802.

[0052] When it is necessary to rotate the carrier plate 3, the second fastener 803 can be removed, the carrier plate 3 can be rotated to a specific angle, the second mounting hole 801 can be engaged with the second mating hole 802, and then the second fastener 803 can be used to tighten it.

[0053] The flatness inspection tool provided by this utility model is used as follows: the workpiece is placed at the gap detection channel 6, and the plane 4 is slidably conveyed by the carrier plate 3, so that the workpiece automatically slides down into the gap detection channel 6 under the action of gravity. During this process, if the workpiece can pass smoothly through the detection channel formed between the bottom of the pressure strip body 5 and the carrier plate 3, it indicates that its flatness meets the requirements; otherwise, if the workpiece gets stuck or cannot pass through during the process, it is determined that the flatness of the workpiece is unqualified.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A flatness gauge, characterized by, include: The carrier plate has an angle between its working surface and the horizontal plane to form an inclined sliding plane; At least two pressure strip bodies are arranged in parallel along the inclined direction of the carrier plate on the inclined sliding plane of the carrier plate; A gap detection channel is formed between the bottom of the pressure strip body and the inclined sliding plane of the carrier plate, extends along the inclined direction of the carrier plate and is parallel to the parallel arrangement direction of the pressure strip body, and is used to determine the degree of flatness qualification of the workpiece to be inspected by whether it passes smoothly.

2. A flatness gauge according to claim 1, wherein The gap detection channel includes a support reference, a constraint reference, and a channel height. The support reference is formed by the inclined sliding plane of the carrier plate, the constraint reference is formed by the bottom of the pressure strip body, the support reference is parallel to the constraint reference, and the channel height is the vertical distance between the support reference and the constraint reference.

3. A flatness gauge according to claim 2, wherein, The gap detection channel also includes side boundaries and channel width. The side boundaries are the inner surfaces of the oppositely arranged pressure strip bodies, with the two inner surfaces parallel to each other. The channel width is the parallel distance between the side boundaries of the two pressure strip bodies.

4. A flatness gauge according to any one of claims 1 to 3, wherein It also includes a detachable component connected between the pressure strip body and the carrier plate, the detachable component being used to adjust the spacing between the two pressure strip bodies.

5. A flatness gauge according to claim 4, wherein, The detachable component includes a first mounting hole, a first mating hole, and a first fastener. The first mounting hole is located at both ends of the carrier plate, and the first mating hole is located on the surface of the pressure strip body. The size and position of the first mounting hole and the first mating hole are adapted to each other, and the first fastener passes between the first mounting hole and the first mating hole.

6. A flatness gauge according to any one of claims 1 to 3, wherein It also includes a horizontal base, which is installed at the bottom of the carrier plate, and the inclined sliding plane of the carrier plate forms an angle with the horizontal plane of the horizontal base.

7. A flatness gauge according to claim 6, wherein The horizontal base and the carrier plate are connected by a connecting plate, which supports the carrier plate.

8. A flatness gauge according to claim 7, wherein, The connecting plate and the carrier plate are connected by a connecting assembly, which is used to replace the carrier plate.

9. A flatness gauge according to claim 8, wherein, The connecting component includes a second mounting hole, a second mating hole, and a second fastener. The second mounting hole is located in the middle of the carrier plate, and the second mating hole is located at the upper end of the connecting plate. The size and position of the second mounting hole and the second mating hole are adapted to each other. The second fastener passes between the second mounting hole and the second mating hole.

10. A flatness gauge according to any one of claims 1-3 or 5 or 7-9, wherein, The pressure strip body is provided with a protruding connecting end at one end of the carrier plate, and the protruding connecting end forms a gap with the carrier plate, the gap being a gap detection channel.

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