Measuring instrument for detecting position size of small device based on telecentric design
Through the combined installation of telecentric lenses and light sources and image recognition algorithms, the problems of insufficient depth of field and distortion in small devices are solved, and high-precision position and size measurements are achieved.
Patent Information
- Application Number
- CN202422496598.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In the prior art, ordinary lenses have shallow depth of field when detecting small devices, resulting in some areas of complex-shaped devices not being in focus, affecting the clarity and accuracy of the measurement results, and ordinary lenses may introduce distortions.
Using a combination of a telecentric lens and a telecentric light source, the telecentric light source and telecentric lens are firmly installed on the base through fixing bolts, adjusting the angle and direction to capture light, ensuring imaging quality, and performing accurate measurements with image recognition algorithms.
It realizes the constant magnification rate throughout the field of view, improves the accuracy of position and size measurement of small devices, reduces the impact of distortion, and ensures the clarity and reliability of measurement results.
Smart Images
Figure CN223154207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a measuring instrument for detecting the position and size of small devices based on telecentric design, belonging to the field of precision manufacturing technology. Background Art
[0002] In the field of precision manufacturing, it is very important to accurately measure the position and size of small devices. These devices often have complex geometric structures and tiny sizes, so high-precision detection tools are required to ensure product quality. The depth of field of ordinary lenses is relatively shallow, especially at high magnification. This may cause some areas to be out of focus when detecting devices with complex shapes or height variations, thus affecting the clarity and accuracy of measurement results. Ordinary lenses may introduce different degrees of distortion, especially in the edge area, and this distortion will affect the accuracy of measurement results. Different from ordinary lenses, telecentric lenses are a special type of optical lens that can maintain a constant magnification throughout the field of view. Combining with image recognition algorithms is very suitable for accurately measuring the position and size of small devices. In addition, the parallel light of the telecentric light source can accurately detect the edge area. Summary of the Utility Model
[0003] The main purpose of the utility model is to provide a measuring instrument for detecting the position and size of small devices based on telecentric design.
[0004] The purpose of the utility model can be achieved by adopting the following technical solutions:
[0005] A measuring instrument for detecting the position and size of small devices based on telecentric design includes a base for limiting positions;
[0006] One end of the base is installed with a telecentric light source fixing buckle, and the other end of the base is installed with a telecentric lens and a telecentric lens fixing buckle. A telecentric light source is fixedly installed inside the telecentric light source fixing buckle. Fixing bolts are respectively installed on both sides of the telecentric light source fixing buckle, and the telecentric lens is placed inside the telecentric lens fixing buckle and fixedly connected.
[0007] Preferably, the fixing bolts penetrate through the telecentric light source fixing buckle to fixedly install the telecentric light source on the base, and the telecentric light source is inserted into the telecentric light source fixing buckle.
[0008] Preferably, the center point is engraved in the middle of the base.
[0009] Preferably, the telecentric light source and the telecentric lens are placed in parallel.
[0010] Preferably, the telecentric lens fixing buckle and the telecentric light source fixing buckle are of a split structure.
[0011] Preferably, the telecentric light source and the telecentric lens are used in combination.
[0012] Advantageous technical effects of the present utility model:
[0013] A measuring instrument for detecting the position and size of small devices based on telecentric design provided by the present utility model installs a telecentric lens in a telecentric lens fixing buckle to ensure that the lens is firmly fixed. Adjust the angle and direction of the lens so that it can capture the light from the light source. After installation, connect the power supply and control signal, turn on the light source and observe the imaging effect of the lens. If necessary, finely adjust the positions of the light source and the lens until the best imaging quality is achieved. Finally, reinforce all components with fixing bolts to ensure the stability and reliability of the entire system. Description of the drawings
[0014] Figure 1 It is an exploded perspective view of the overall structure of a device according to a preferred embodiment of a measuring instrument for detecting the position and size of small devices based on telecentric design of the present utility model;
[0015] Figure 2 It is an enlarged view of the structure at position A according to a preferred embodiment of a measuring instrument for detecting the position and size of small devices based on telecentric design of the present utility model;
[0016] Figure 3 It is a side cross-sectional view of the first telescopic rod according to a preferred embodiment of a measuring instrument for detecting the position and size of small devices based on telecentric design of the present utility model.
[0017] In the figure: 1, telecentric light source; 2, telecentric light source fixing buckle; 3, base; 4, telecentric lens; 5, telecentric lens fixing buckle; 6, fixing bolt. Detailed implementation manners
[0018] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with the embodiments and the drawings, but the implementation manners of the present utility model are not limited thereto.
[0019] As Figure 1 - Figure 3 shown, a measuring instrument for detecting the position and size of small devices based on telecentric design provided in this embodiment includes a base 3 for limiting positions;
[0020] One end of the base 3 is installed with a telecentric light source fixing buckle 2, the other end of the base 3 is installed with a telecentric lens 4 and a telecentric lens fixing buckle 5. A telecentric light source 1 is fixedly installed in the telecentric light source fixing buckle 2. Fixing bolts 6 are respectively installed on both sides of the telecentric light source fixing buckle 2. The telecentric lens 4 is placed in the telecentric lens fixing buckle 5 and fixedly connected.
[0021] The fixing bolt 6 firmly mounts the telecentric light source fixing buckle 2 onto the base 3, and the telecentric light source 1 is inserted into the telecentric light source fixing buckle 2.
[0022] The center point is engraved in the middle of the base 3.
[0023] The telecentric light source 1 and the telecentric lens 4 are placed in parallel.
[0024] The telecentric lens fixing buckle 5 and the telecentric light source fixing buckle 2 are of a split structure.
[0025] The telecentric light source 1 and the telecentric lens 4 are used in cooperation.
[0026] As Figure 1 - Figure 3 shown, the working process of a measuring instrument for detecting the position and size of small devices based on telecentric design provided in this embodiment is as follows: Place the base 3 on the workbench to ensure it is stably placed on a flat surface. Use the fixing bolt 6 to firmly mount the telecentric light source fixing buckle 2 onto the base 3, ensuring that the position of the buckle can conveniently access the power supply and control signals. Insert the telecentric light source 1 into the telecentric light source fixing buckle 2 to ensure that the light source is firmly fixed; Adjust the angle and direction of the light source so that the emitted light can irradiate the expected target area. Use the fixing bolt 6 to firmly mount the telecentric lens 4 and the telecentric lens fixing buckle 5 onto the base 3, ensuring that the position of the buckle enables the telecentric lens to receive the light from the light source. Insert the telecentric lens 4 into the telecentric lens fixing buckle 5 to ensure that the lens is firmly fixed. Adjust the angle and direction of the lens so that it can capture the light from the light source. After the installation is completed, connect the power supply and control signals, turn on the light source and observe the imaging effect of the lens. If necessary, finely adjust the positions of the light source and the lens until the best imaging quality is achieved. Finally, use the fixing bolt 6 to reinforce all components again to ensure the stability and reliability of the entire system.
[0027] Embodiment
[0028] As Figure 1 - Figure 3As shown, a telecentric light source fixing buckle 2 is installed on one side of the base 3. A telecentric light source 1 is fixedly installed inside the telecentric light source fixing buckle 2. Fixing bolts 6 are respectively installed on both sides of the telecentric light source fixing buckle 2. A telecentric lens fixing buckle 5 is installed on the other side of the base 3. A telecentric lens 4 is installed inside the telecentric lens fixing buckle 5. Place the base 3 on the workbench to ensure it is stably placed on a flat surface. Use the fixing bolts 6 to firmly install the telecentric light source fixing buckle 2 onto the base 3, ensuring that the position of the buckle can facilitate access to power and control signals. Insert the telecentric light source 1 into the telecentric light source fixing buckle 2 to ensure that the light source is firmly fixed. Adjust the angle and direction of the light source so that the emitted light can irradiate the expected target area. Use the fixing bolts 6 to firmly install the telecentric lens 4 and the telecentric lens fixing buckle 5 onto the base 3, ensuring that the position of the buckle can enable the telecentric lens to receive light from the light source. Insert the telecentric lens 4 into the telecentric lens fixing buckle 5 to ensure that the lens is firmly fixed. Adjust the angle and direction of the lens so that it can capture the light from the light source. After completion of the installation, connect the power supply and control signals, turn on the light source and observe the imaging effect of the lens. If necessary, finely adjust the positions of the light source and the lens until the best imaging quality is achieved. Finally, use the fixing bolts 6 to reinforce all components again to ensure the stability and reliability of the entire system.
[0029] As described above, the above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.
Claims
1. A measuring instrument for detecting the position and size of small devices based on telecentric design, including a base (3) for limiting positions; It is characterized in that: One end of the base (3) is equipped with a telecentric light source fixing buckle (2), and the other end of the base (3) is equipped with a telecentric lens (4) and a telecentric lens fixing buckle (5). A telecentric light source (1) is fixedly installed inside the telecentric light source fixing buckle (2). Fixing bolts (6) are installed on both sides of the telecentric light source fixing buckle (2), and the telecentric lens (4) is placed inside the telecentric lens fixing buckle (5) and fixedly connected.
2. The measuring instrument for detecting the position and size of small devices based on telecentric design according to claim 1, wherein: The fixing bolts (6) firmly install the telecentric light source fixing buckle (2) onto the base (3), and the telecentric light source (1) is inserted into the telecentric light source fixing buckle (2).
3. A measuring instrument for detecting the position and size of small devices based on telecentric design according to claim 2, characterized in that: A center point is engraved in the middle of the base (3).
4. The measuring instrument for detecting the position and dimension of small devices based on telecentric design according to claim 3, characterized in that: The telecentric light source (1) and the telecentric lens (4) are placed parallel to each other.
5. The measuring instrument for detecting the position and size of small devices based on telecentric design according to claim 4, characterized in that: The telecentric lens fixing buckle (5) and the telecentric light source fixing buckle (2) are of a split structure.
6. The measuring instrument for detecting the position and size of small devices based on telecentric design according to claim 5, characterized in that: The telecentric light source (1) and the telecentric lens (4) are used in cooperation.