Rapid coaxiality detection device

Abstract

The utility model discloses a rapid coaxiality detection device. The rapid coaxiality detection device comprises a flash tester or an imaging instrument and a V-shaped block. The V-shaped block is placed on a workbench of the flash tester or the imager, and a shaft part to be tested is horizontally and vertically placed on the V-shaped block in two times and is located in an optical lens range of the flash tester or the imager; the flash tester or the imager captures the axis position difference between the reference axis of the to-be-tested shaft part and the measured axis of the to-be-tested shaft part from a horizontal angle and a vertical angle by using an optical method, and calculates the maximum difference value of the values measured at different angles, thereby obtaining the coaxiality value. The utility model has the beneficial effects that: 1, the device is simple, reliable and low in cost; 2, the detection efficiency is high; and 3, the device is suitable for 100 inspection of products with strict customer requirements, and zero defect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coaxiality testing technology for batch testing of shaft parts, and particularly to a rapid coaxiality testing device. Background Technology

[0002] Currently, there are two main methods for testing the coaxiality of industrial products: coordinate measuring machine (CMM) and the design of dedicated testing fixtures. For enterprises, the former involves a large investment, long testing time, and requires specialized personnel to transport the product to a precision testing laboratory, resulting in low efficiency. On the other hand, dedicated fixtures require experienced designers and are highly specific; a single fixture can only test a particular product, lacking versatility. Given that factories produce thousands of different products, designing dedicated fixtures for all of them is impractical. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rapid coaxiality detection device for shaft parts that reduces labor intensity, improves work efficiency, and ensures accurate detection, thereby addressing the shortcomings of existing technologies.

[0004] To achieve the aforementioned objectives, this utility model provides a rapid coaxiality testing device, comprising: a flash meter or imager and a V-block; the V-block is placed on the worktable of the flash meter or imager, and the shaft-like part to be tested is placed on the V-block twice, horizontally and vertically, within the optical lens range of the flash meter or imager; the flash meter or imager uses optical methods to capture the difference in the center position between the reference axis of the shaft-like part to be tested and the axis being tested from two angles, horizontally and vertically, respectively, and calculates the maximum difference between the values ​​measured at different angles, thereby obtaining the coaxiality value.

[0005] The utility model features are as follows: 1. It adopts general-purpose instruments and auxiliary tools with wide adaptability; 2. It uses optical methods for high measurement efficiency. Usually, it takes less than half an hour to inspect a part using a coordinate measuring machine, while this method only takes 10 seconds, which is only 1 / 180 of the time required by the coordinate measuring machine.

[0006] Due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. Simple, reliable, and low cost; 2. High testing efficiency; 3. Suitable for conducting 100% inspection of products with strict customer requirements, achieving zero defects. Attached Figure Description

[0007] Figure 1 This is a schematic diagram illustrating the principle of a rapid coaxiality detection method according to this utility model.

[0008] Figure 2 This is a schematic diagram of the shaft-type part to be tested being placed horizontally on a V-block.

[0009] Figure 3This is a schematic diagram of the shaft-type part to be tested being placed vertically on a V-block according to the present invention. Detailed Implementation

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this does not limit the utility model to the scope of the embodiments described.

[0011] The standard for coaxiality refers to the amount of change between the measured axis and the reference axis, such as... Figure 1 The maximum difference between the central axis of the measured column and the reference column in the circumferential method is shown.

[0012] Flash meters or image meters are generally not used to detect coaxiality values; they can only be used to detect parameters such as diameter, length, and angle.

[0013] The method used in this invention employs a flash meter or imager to capture the difference in the center position of the reference axis and the measured axis from two angles, horizontal and vertical, respectively, using optical methods. The maximum difference between the values ​​measured at different angles is calculated to obtain the coaxiality value. The value measured by this method is found to be indistinguishable from the three coordinate system, and the CGK value obtained by the measurement system analysis meets the national standard.

[0014] See Figure 2 and Figure 3 This utility model discloses a rapid coaxiality detection device, comprising: a flash meter or imager 3 and a V-block 2; the V-block 2 is placed on the worktable 3a of the flash meter or imager 3, and the shaft part 1 to be tested is placed on the V-block 2 in two stages, horizontally and vertically, and is located within the optical lens range of the flash meter or imager 3; the flash meter or imager 3 uses optical methods to capture the difference in the center position of the reference axis of the shaft part 1 to be tested and the axis to be tested from two angles, horizontally and vertically, respectively, and calculates the maximum difference of the values ​​measured at different angles, thereby obtaining the coaxiality value.

[0015] The specific steps are as follows:

[0016] Step 1: Place the V-block 2 on the worktable 3a of the flash meter or image meter 3;

[0017] Step 2: The shaft part to be tested, part 1, is placed horizontally on the V-block 2 and within the range of the optical lens 3b of the flash tester or image instrument 3;

[0018] Step 3: The flash detector or imager 3 uses optical methods to capture the center position of the reference axis of the horizontally placed shaft part 1 to be tested and the axis to be tested of the shaft part 1 from a horizontal angle.

[0019] Step 4: The shaft part to be tested, part 1, is placed vertically on the V-block 2 and within the range of the optical lens 3b of the flash tester or image instrument 3.

[0020] Step 5: The flash detector or imager 3 uses optical methods to capture the position of the reference axis of the vertically placed shaft part 1 and the axis of the shaft being tested from a vertical angle.

[0021] Step Six: Based on the difference between the axis position of the horizontally placed reference axis of the shaft part 1 to be tested and the axis position of the tested shaft part 1 captured by the flash meter or imager 3 from a horizontal angle in Step Three and the axis position of the vertically placed reference axis of the shaft part 1 to be tested and the axis position of the tested shaft part 1 captured by the flash meter or imager 3 from a vertical angle in Step Five, calculate the maximum difference between the values ​​measured at different angles, and thus obtain the coaxiality value.

Claims

1. A rapid coaxiality detection device, characterized in that, include: A flash meter or image sensor and a V-block; the V-block is placed on the worktable of the flash meter or image sensor, and the shaft part to be tested is placed on the V-block twice, horizontally and vertically, within the optical lens range of the flash meter or image sensor; the flash meter or image sensor uses optical methods to capture the difference in the center position of the reference axis and the axis being tested of the shaft part from two angles, horizontally and vertically, respectively, and calculates the maximum difference of the values ​​measured at different angles, thereby obtaining the coaxiality value.

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