A rubber sheet material overall thickness rapid detection tool

Abstract

This utility model discloses a rapid thickness detection fixture for all parts of a rubber sheet raw material. It includes a support platform comprising two staggered platforms: an upper platform for placing the sheet and a lower platform for testing. An elongated opening connects the two platforms. The placing platform holds the rubber sheet to be tested (applicable thickness 0.5mm to 3.0mm, extendable to some medium-thick sheets). The testing platform holds a height gauge. Both platforms have ground and leveled surfaces to provide a stable reference. In use, the rubber sheet can be bent through the elongated opening at one end and measured using the height gauge, enabling rapid thickness detection at any point on the entire sheet. This fixture significantly increases the measurement coverage area, improves the acceptance rate of rubber sheets, and reduces equipment investment and production scrap costs. It is suitable for incoming inspection and on-site inspection by manufacturers, demonstrating strong applicability.

Description

Technical Field

[0001] This utility model relates to a tooling for rapid detection of the thickness of all parts of rubber sheet raw materials. Background Technology

[0002] In the field of aerospace product manufacturing, various non-metallic rubber sheets are widely used, such as sponge rubber sheets, vacuum rubber sheets, ordinary rubber sheets, and aerospace rubber products. The commonly used specifications and thickness ranges from about 0.5mm to 5.0mm. Among them, thin sheets of 3mm and below (classified by thickness, 0.5mm to 3mm are thin sheets, 3mm to 10mm are medium sheets, and more than 10mm are thick sheets) are used most frequently.

[0003] The most common size for rubber sheet raw materials is 1000mm × 1000mm, but different sizes can also be customized as needed. During the processing of parts using these sheet-like raw materials, the problem of localized thickness deviations often arises, meaning significant differences in thickness between different parts of the sheet. The uniformity of rubber sheet thickness is difficult to control during production, and some areas may be too thin or too thick.

[0004] When inspecting rubber sheets upon arrival at the factory, vernier calipers or micrometers are typically used to measure the thickness near the edges of the sheets. However, due to the limited length of the measuring tool's caliper, only a certain range around the perimeter of the sheet can be used for testing. Furthermore, the entire sheet cannot be damaged during the incoming inspection, so the thickness in the middle and most areas cannot be measured, resulting in a significant blind spot.

[0005] In the subsequent process of processing parts using sheet metal, as the sheet metal is cut and punched, the thickness of more locations can be directly measured with conventional measuring tools. At this time, the problem of local deviations in the raw materials is exposed, resulting in the scrapping of some parts and large areas of sheet metal. There are even situations where the same batch of rubber sheets needs to be selected for use, which increases the production and manufacturing costs.

[0006] To measure the thickness of all parts of the rubber sheet without damaging the sheet, laser thickness gauges or ultrasonic thickness gauges can be used. However, these types of equipment are expensive, and compared with the low unit price of the raw material rubber sheet, the overall investment is uneconomical. At the same time, the operation and maintenance of the equipment are relatively complicated.

[0007] There has always been a lack of simple, low-cost, and widely applicable testing fixtures for quickly and effectively measuring the thickness of all parts of a thin rubber sheet when using conventional measuring tools. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a tooling for rapid thickness detection of all locations on rubber sheet raw materials. This tooling can achieve rapid thickness detection of rubber sheet raw materials at any location without damaging the sheet, improving the comprehensiveness and accuracy of incoming inspection and on-site testing, and reducing production costs.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: A tooling for rapid thickness detection of all parts of rubber sheet raw material includes a support platform, which is welded from square tubes and sheet metal. The support platform includes two platforms, which are staggered and the height difference between the two platforms is 2-3 mm. The upper platform of the two platforms is a placement platform for placing the rubber sheet to be tested, and the lower platform is a testing platform for placing a testing gauge, which is a height gauge. The measuring claw of the height gauge must be able to effectively cross the arched part of the rubber sheet after bending. A long strip opening with a width of 10-15mm is provided between the placement platform and the testing platform. The long strip opening is suitable for testing the entire thickness of rubber sheet raw materials with a thickness of 0.5mm-3.0mm. The long strip opening allows the rubber sheet to be tested to pass freely after bending at one end, and the length of the long strip opening extends to the edge of the support platform. The upper surfaces of both the placement platform and the detection platform are ground and leveled planes to provide a stable planar reference when performing thickness measurements.

[0010] This utility model has the following advantages: 1. Significantly increased measurement area: Taking a rubber sheet with a size of approximately 1m×1m as an example, traditional methods using vernier calipers or micrometers can only take points for testing within a certain range around the sheet, resulting in a limited actual measurement area. With the tooling of this utility model, the rubber sheet can be bent to send any part to the height gauge measuring jaws, enabling the detection of the thickness of the entire sheet. The measurement coverage area is significantly increased compared to traditional methods.

[0011] 2. Improve product acceptance pass rate: By conducting thickness testing on the entire surface of the rubber sheet raw material, local thickness deviations can be detected in a timely manner during the incoming inspection process, preventing defects from being exposed during parts processing. This significantly improves the acceptance pass rate of rubber sheet materials and reduces parts rework and scrap caused by raw material problems.

[0012] 3. Reduced production and manufacturing costs: On the one hand, this utility model is made of ordinary steel through welding, which results in a simple structure and low manufacturing cost, eliminating the need to purchase expensive laser thickness gauges or ultrasonic thickness gauges; on the other hand, by reducing the scrap of rubber sheet raw materials and processed parts, the overall cost of the production and manufacturing process is reduced.

[0013] 4. Wide range of applications: This utility model is applicable to both thin rubber sheet raw materials (0.5mm to 3mm) and some medium-thick plates (3mm to 6mm) for thickness testing. It can be used for both incoming inspection and on-site quality inspection by rubber sheet raw material manufacturers, and has a wide range of application prospects. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a tooling for rapid detection of the thickness of all parts of a rubber sheet raw material.

[0015] Figure 2 This is a schematic diagram of a combined structure for a rapid thickness detection tooling for all parts of a rubber sheet raw material.

[0016] In the diagram: 1-Support platform, 2-Placement platform, 3-Detection platform, 4-Detection measuring instrument. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Example: A rapid thickness detection fixture for all parts of rubber sheet raw material includes a support platform. The support platform is welded from square tubing and sheet metal. The support platform includes two platforms arranged in a staggered manner, and can also be a single integral support platform (e.g., Figure 1 As shown), it can also be a modular support platform (such as...). Figure 2 As shown, the size and structure can be adjusted according to actual needs without any special restrictions; Among them, the upper platform is a placement platform for placing the rubber sheet to be tested, and the lower platform is a testing platform for placing the testing gauge. A long strip opening is provided between the placement platform and the testing platform. The long strip opening allows the rubber sheet to be bent downwards and pass freely through, and the length of the long strip opening extends to the edge of the support platform. The upper surfaces of both the placement platform and the testing platform are ground and leveled to provide a stable planar reference when performing thickness measurements.

[0020] The height difference between the placement platform and the testing platform is 2-3 mm, so that when the rubber sheet to be tested is not placed, the height gauge measuring claw descends to the testing platform and the reading is positive, which can be used as the measurement reference difference.

[0021] The width of the long strip opening on the platform is 10-15mm. This width is sufficient to allow one end of the rubber sheet to be bent and pass through the long strip opening and hang down naturally.

[0022] The measuring tool is a height gauge. The height gauge used with the tooling has measuring jaws that can effectively cross the arched part of the rubber sheet to be measured after bending. During measurement, the undeformed part of the rubber sheet to be measured is tested to avoid deformation interfering with the test results.

[0023] The tooling is suitable for inspecting rubber sheets with a thickness range of 0.5mm to 3.0mm (in the aerospace product manufacturing field). It is not only suitable for thin sheets with a thickness of 0.5mm to 3mm, but also for medium sheets with a thickness of 3mm to 10mm.

[0024] This utility model fixture is used in conjunction with a height gauge, and the specific steps are as follows: S1: Fixture and height gauge in place: Place the inspection fixture on the workbench and ensure that the fixture is stable and reliable; place the height gauge on the inspection platform and make the height gauge base completely fit the upper surface of the inspection platform.

[0025] S2: Measurement and recording of the height difference between the plane reference: Lower the height gauge measuring claw to the platform, make the measuring claw contact with the upper surface of the platform and stabilize it, and then read the height gauge reading. This reading reflects the height difference between the platform and the detection platform. Record this height difference value as the reference value for subsequent measurements.

[0026] S3: Rubber Sheet Placement and Positioning: Place the rubber sheet to be tested on the platform, ensuring one end of the sheet hangs naturally through the elongated opening, with the surface of the sheet flat on the platform. Move the rubber sheet back and forth to bring any desired measurement location within the reach of the height gauge's measuring claw. For the left and right sides of the rubber sheet, the measurement position can be changed by moving the height gauge base left and right on the first support plane.

[0027] S4: Thickness Detection: At the selected measurement location, slowly lower the measuring claw of the height gauge until it crosses the elongated opening and the arched part of the rubber sheet to be measured, and contacts the upper surface of the corresponding position of the rubber sheet (for example, for a height gauge with specifications of 0-500mm, the measuring claw length can reach 100mm, which can cross the arched part of a 1m×1m rubber sheet). When in contact, it relies only on the weight of the measuring claw or a slight force, without causing significant compression deformation of the rubber sheet. Read the height gauge reading at this time; the difference between this reading and the aforementioned plane reference height is the thickness of the rubber sheet at that position.

[0028] Precautions: Before each test or when there is a significant change in the environment, the height difference between the placement platform and the testing platform should be remeasured to ensure measurement accuracy; during the measurement process, the pressure when the measuring claw contacts the rubber plate should be properly controlled to reduce the influence of the elastic deformation of the rubber material on the reading.

[0029] As can be seen from the above embodiments, the testing fixture of this utility model, in conjunction with a height gauge, can measure the thickness of the entire sheet without damaging the rubber sheet. It is convenient to operate, highly efficient, and the measurement results are intuitive and reliable, meeting the requirements for large-area thickness uniformity testing of rubber sheet raw materials.

[0030] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A rubber sheet material overall thickness rapid detection tool, characterized in that: It includes a support platform, which is welded together from square tubes and plates. The support platform includes two platforms, which are arranged in a staggered manner. Among them, the upper platform of the two platforms is a placement platform for placing the rubber sheet to be tested, and the lower platform of the two platforms is a testing platform for placing the testing gauge. A long strip opening is provided between the placement platform and the testing platform. The long strip opening allows the rubber sheet to be bent at one end and pass freely downwards, and the length of the long strip opening extends to the edge of the support platform. The upper surfaces of both the placement platform and the detection platform are ground and leveled planes to provide a stable planar reference when performing thickness measurements.

2. The rubber sheet material overall thickness rapid detection tool according to claim 1, characterized in that: The height difference between the placement platform and the detection platform is 2-3 mm.

3. The rubber sheet material overall thickness rapid detection tool according to claim 1, characterized in that: The width of the elongated opening on the storage platform is 10-15 mm.

4. The rubber sheet material overall thickness rapid detection tool according to claim 1, characterized in that: The measuring instrument is a height gauge.

5. The rubber sheet material overall thickness rapid detection tool according to claim 4, characterized in that: The height gauge used with the tooling must have measuring claws that can effectively cross the arched portion of the rubber sheet being measured after bending.

6. The rubber sheet material overall thickness rapid detection tool according to claim 1, characterized in that: The fixture is suitable for inspecting rubber sheets with a thickness range of 0.5mm to 3.0mm.

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