Rubber sealing ring measuring tool and rubber sealing ring measuring method

Abstract

The invention relates to a rubber sealing ring measuring tool and a rubber sealing ring measuring method. The rubber sealing ring measuring tool comprises an inner diameter rod and an outer diameter rod, wherein the inner diameter rod is a cone frustum; the top diameter of the inner diameter rod is smaller than the bottom diameter of the inner diameter rod; the outer diameter rod is a cylinder; the inner diameter rod is used for measuring the inner diameter of the sealing ring; and the outer diameter rod is used for measuring the outer diameter and parallelism of the sealing ring. According to the rubber sealing ring measuring tool disclosed by the invention, due to the inner diameter rod of the cone frustum structure and the outer diameter rod of the cylindrical structure, the measuring method of the rubber sealing ring can be optimized, and the measuring accuracy can be confirmed, so that the product quality is guaranteed.

Description

technical field [0001] The invention belongs to the field of caliper sealing rings of disc brakes, and specifically refers to a rubber sealing ring measuring tool used in the manufacturing process of caliper sealing rings of disc brakes and a measuring method thereof. Background technique [0002] The caliper of the disc brake uses a rubber sealing ring to realize the sealing function. The rubber sealing ring is matched with the three dimensions of the caliper piston and the caliper body to realize the sealing function. It is a key component of the disc brake. high expectation. [0003] Such as figure 1 with figure 2 As shown, the existing rubber sealing ring 2 is installed in the caliper groove 3, and realizes the sealing function by matching the dimensions of the three parts of the caliper piston 1 and the caliper groove 3. Rubber performance requirements are very high. Therefore, it is necessary to test the actual size of the rubber sealing ring 2 to confirm whether ...

AI Technical Summary

Problems solved by technology

[0004] Use traditional tools to measure the size of the rubber sealing ring 2 (such as inner and outer diameters, etc.). Since the rubber sealing ring is small in size and made of rubber, if you apply a little force, the rubber sealing ring will be deformed by force and cannot be accurately measured.

[0005] like image 3 As shown, using a projector to measure the size of the rubber sealing ring 2 (such as inner and outer diameters, etc.) can ensure the accuracy of the measurement, but still cannot guarantee the accuracy of the measurement results

[0006] The projector projects the rubber sealing ring 2, takes points on the image, and calculates the inner and outer diameters of the rubber sealing ring 2 according to the coordinates of the selected points; in actual testing, the rubber sealing ring 2 is placed on the projector In fact, there is no guarantee that it must be a circle (the shape may change when it is placed under a little force). In most cases, the rubber sealing ring is an ellipse when it is placed, and the result calculated by the projector will be larger than the actual value. Many, even with repeated measurements using a projector, the numerical deviation is also large

[0007] Due to the material and structure of the rubber sealing ring, the existing detection methods cannot accurately measure the relevant dimensions of the rubber sealing ring, and cannot guarantee the design status

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