A rapid high-precision piston size and glossiness detection device

By integrating a laser profilometer, rangefinder, electric gripper, and industrial camera into an automated inspection system, the problem of low efficiency in manual piston inspection has been solved, enabling rapid and high-precision dimensional and gloss inspection, thereby improving production efficiency and quality control.

CN224500943UActive Publication Date: 2026-07-14ANHUI LANKE INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI LANKE INTELLIGENT TECH CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the current piston production process, the reliance on manual inspection results in low inspection efficiency, making it difficult to meet the requirements for rapid and high-precision dimensional and gloss inspection, thus affecting production efficiency and quality control.

Method used

The system employs a laser profilometer and laser rangefinder combined with a material inspection platform, along with an electric gripper and an industrial line scan camera. A PLC control system enables synchronous rotation and scanning detection of the piston, while an integrated light source and computing server provide real-time analysis.

Benefits of technology

It enables rapid and high-precision detection of pistons, improves detection efficiency and accuracy, has a wide range of applications, reduces equipment replacement time, and enhances the portability of the detection process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high-precision piston size and glossiness detection device of quick, it is related to part detection field, including the material detection table for bearing piston material and the cover plate being located in material detection table top, along with the rotation of material detection table, piston material rotates synchronously.The periphery of the material detection table is provided with a laser profilometer, and a laser range finder that can move synchronously with the cover plate is provided above the material detection table.When the piston material is located on the material detection table to receive detection operation, the cover plate is lowered, and the top end of the piston material is abutted, and the laser range finder is moved into the inside of the piston material.The utility model can comprehensively and quickly implement detection operation on piston material, improve the efficiency and accuracy of detection work.And in the process of implementing detection operation, different sizes of pistons in the specified range can be implemented detection operation, the scope of application is wide, the time required for replacing detection instrument is reduced, and the portability of detection operation is improved.
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Description

Technical Field

[0001] This utility model relates to the field of parts inspection, and in particular to a rapid and high-precision piston size and gloss inspection device. Background Technology

[0002] Pistons are commonly used metal components in the automotive industry. If improper manufacturing techniques result in pistons that do not meet specified dimensions or have surface defects, they will not fit precisely when assembled with other parts during automobile production, leading to product scrap and impacting production schedules. Therefore, during piston production, dimensional and defect inspections are necessary to determine if the pistons meet production standards, facilitating statistical analysis and management within the production system.

[0003] Existing methods for inspecting piston parts mostly rely on manual operation. Manual inspection is time-consuming, and changing inspection equipment is necessary for different types of inspections, impacting the inspection schedule and resulting in low efficiency. Therefore, relying on manual inspection can negatively affect production efficiency, hinder stable piston quality control, and increase the time cost of inspection operations. Utility Model Content

[0004] To address the aforementioned issues, this application provides a rapid and high-precision device for detecting piston dimensions and gloss.

[0005] To achieve the above objectives, this application provides the following technical solution: a rapid and high-precision piston size and gloss detection device, comprising a material detection stage for carrying piston material and a cover plate disposed above the material detection stage, wherein the piston material rotates synchronously as the material detection stage rotates;

[0006] A laser profilometer is provided on the outer periphery of the material detection platform, and a laser rangefinder that can move synchronously with the cover plate is provided above the material detection platform. When the piston material is located on the material detection platform to receive the detection operation, the cover plate is lowered and abuts against the top of the piston material. The laser rangefinder moves into the inner side of the piston material. With the synchronous rotation of the material detection platform and the piston material, the laser rangefinder and the laser profilometer perform scanning operations on the inner and outer sides of the piston material.

[0007] Furthermore, the inner side of the material detection platform is provided with three electric grippers that are equidistantly distributed along a circular trajectory. When the piston material is placed above the material detection platform, all three electric grippers abut against the inner wall of the piston material.

[0008] Furthermore, the material detection platform is equipped with a frame, and the laser profilometer is fixedly installed on the frame. The frame is fixedly equipped with a light source and an industrial line scan camera. The light source and the industrial line scan camera are both located on the outer periphery of the material detection platform. When the material detection platform and the piston material rotate synchronously, the light source is turned on, and the industrial line scan camera performs a scanning operation on the outer surface of the piston material.

[0009] Furthermore, a rotary motor is provided below the frame, and the output end of the rotary motor is connected to the material detection platform.

[0010] Furthermore, a sliding arm is fixedly installed on the laser rangefinder. The sliding arm passes through the cover plate, and a first linear module that can drive it to move up and down is installed on the sliding arm. The first linear module is fixedly installed on the frame. When the laser rangefinder and the sliding arm move up and down along the distribution direction of the first linear module, the laser rangefinder moves away from or closer to the piston material.

[0011] Furthermore, sliders are fixedly installed at both ends of the cover plate, and a second linear module that can drive the slider to move up and down is installed on the slider. The second linear module is fixedly installed on the frame. When the cover plate and slider move up and down along the distribution direction of the second linear module, the cover plate moves away from or closer to the piston material.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] This invention enables comprehensive and rapid testing of piston materials, improving the efficiency and accuracy of the testing process. Furthermore, it can test pistons of different sizes within a specified range, offering wide applicability, reducing the time required to change testing instruments, and enhancing the portability of the testing operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the frame after disassembly.

[0017] Figure 3 This is a schematic diagram of the second-view structure of the frame after partial disassembly.

[0018] Figure 4 This is a schematic diagram of the piston material after it has been cut open.

[0019] Figure 5 This is a schematic diagram showing the positions of the material detection platform, piston, and cover plate of this utility model.

[0020] Figure 6 This utility model Figure 5 Enlarged structural diagram of section A.

[0021] In the diagram: 1. Material inspection station; 2. Electric gripper; 3. Laser profilometer; 4. Light source; 5. Industrial line scan camera; 6. Laser rangefinder; 61. Sliding arm; 62. First linear module; 7. Cover plate; 71. Slider; 72. Second linear module; 8. Rotary motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Reference Figure 1-4 The device, illustrating a rapid and high-precision piston size and gloss detection method, includes a material detection platform 1 for supporting piston material and a cover plate 7 disposed above the material detection platform 1. In practical use, before performing the detection operation on the piston material, it must be placed above the material detection platform 1. During the detection operation, the piston material rotates synchronously with the rotation of the material detection platform 1.

[0024] Specifically, a laser profilometer 3 is provided around the outer periphery of the material detection platform 1, and a laser rangefinder 6, which can move synchronously with the cover plate 7, is provided above the material detection platform 1. In this utility model, the operation of the material detection platform 1, the cover plate 7, the laser profilometer 3, and the laser rangefinder 6 are all controlled by a PLC control system. When the piston material is located on the material detection platform 1 for detection, the controller can be operated to drive the cover plate 7 to descend and abut against the top of the piston material. At the same time, the laser rangefinder 6 moves into the inner side of the piston material. When the material detection platform 1 receives the operation signal from the controller and starts to rotate, the laser rangefinder 6 and the laser profilometer 3 also receive the rotation signal from the material detection platform 1 and start. With the synchronous rotation of the material detection platform 1 and the piston material, the laser rangefinder 6 and the laser profilometer 3 perform scanning operations on the inner and outer sides of the piston material.

[0025] The laser profilometer 3 transmits 3D contour images in real time during scanning for defect detection, while the laser rangefinder 6 transmits its distance from the piston's inner wall in real time for dimensional inspection. After the material inspection stage 1 and the piston material have rotated one revolution, the computing server receives the data and begins analysis, providing measurement results for the piston thread and inner / outer wall diameters. This allows for comprehensive and rapid inspection of the piston material, improving efficiency and accuracy. Furthermore, it can inspect pistons of different sizes within a specified range, offering wide applicability, reducing the time required to change inspection equipment, and enhancing the portability of the inspection operation.

[0026] like Figure 5 , Figure 6 As shown, the inner side of the material detection platform 1 is equipped with three electrically driven grippers 2 equidistantly distributed along a circular trajectory. These grippers 2 are also controlled by a PLC control system. When the piston material is placed above the material detection platform 1, the three electrically driven grippers 2 receive commands from the controller and move, all abutting against the inner wall of the piston material. The electrically driven grippers 2 effectively fix the piston material, allowing it to move synchronously with the material detection platform 1.

[0027] Example 2: Based on Example 1, such as Figure 3-5 As shown, a frame is mounted on the material inspection station 1, and a laser profilometer 3 is fixedly installed on the frame. A light source 4 and an industrial line scan camera 5 are also fixedly installed on the frame, both located on the outer periphery of the material inspection station 1. Both the light source 4 and the industrial line scan camera 5 are controlled by a PLC control system. After the laser rangefinder 6 and the laser profilometer 3 complete their scanning and inspection of the piston material, the light source 4 receives a control signal from the controller and starts rotating. The material inspection station 1 receives the controller's control signal and resumes rotating with the piston material. During rotation, the industrial line scan camera 5 receives the rotation signal from the material inspection station 1 and starts scanning the outer surface of the piston material, producing an image of the piston. A computing server analyzes the image in real time, reads the QR code product information on the piston and stores it in the database, and provides the gloss and defect detection results of the piston surface.

[0028] After the piston and material have rotated twice on the material detection platform 1, the upper cover 7 and the laser rangefinder 6 receive a control signal from the controller and return to their initial positions. The three electric grippers 2 inside the material detection platform 1 also receive a control signal to move and reset, releasing the piston. Subsequently, the detection indicator lights on the frame illuminate to show the detection results: green for qualified products and red for unqualified products. The products are then manually sorted according to the detection indicator lights.

[0029] like Figure 3As shown, a rotary motor 8 is installed below the frame, and the output end of the rotary motor 8 is connected to the material detection table 1. The rotary motor 8 provides power for the rotation of the material detection table 1.

[0030] like Figure 3 , Figure 4 As shown, a sliding arm 61 is fixedly installed on the laser rangefinder 6, penetrating the cover plate 7. Each sliding arm 61 is equipped with a first linear module 62 that drives its vertical movement. The first linear module 62 is fixedly installed on the frame and controlled by a PLC control system. Before and after the detection operation, when the laser rangefinder 6 and the sliding arm 61 move vertically along the distribution direction of the first linear module 62, the laser rangefinder 6 moves away from or closer to the piston material, thereby achieving the purpose of controlling the laser rangefinder 6 to smoothly probe into and remove from the piston material.

[0031] like Figure 3 , Figure 4 As shown, sliders 71 are fixedly installed at both ends of the cover plate 7. Each slider 71 is equipped with a second linear module 72 that drives its vertical movement. The second linear module 72 is fixedly installed on the frame and is controlled by a PLC control system. Before and after the detection operation, when the cover plate 7 and sliders 71 move up and down along the distribution direction of the second linear module 72, the cover plate 7 moves away from or closer to the piston material, thereby achieving the purpose of controlling the cover plate 7 to smoothly dock and separate from the piston material.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid and high-precision piston size and gloss detection device, characterized in that: Includes a material detection platform (1) for carrying piston material and a cover plate (7) located above the material detection platform (1). As the material detection platform (1) rotates, the piston material rotates synchronously. The material detection platform (1) is equipped with a laser profilometer (3) on its outer periphery, and a laser rangefinder (6) that can move synchronously with the cover plate (7) is provided above the material detection platform (1). When the piston material is on the material detection platform (1) and undergoes detection, the cover plate (7) descends and abuts against the top of the piston material. The laser rangefinder (6) moves into the inner side of the piston material. As the material detection platform (1) and the piston material rotate synchronously, the laser rangefinder (6) and the laser profilometer (3) perform scanning operations on the inner and outer sides of the piston material.

2. The rapid and high-precision piston size and gloss detection device according to claim 1, characterized in that: The material detection platform (1) has three electric claws (2) that are equidistantly distributed along a circular trajectory on its inner side. When the piston material is placed above the material detection platform (1), the three electric claws (2) all abut against the inner wall of the piston material.

3. The rapid and high-precision piston size and gloss detection device according to claim 1, characterized in that: The material detection platform (1) is equipped with a frame, and the laser profilometer (3) is fixedly installed on the frame. The frame is fixedly equipped with a light source (4) and an industrial line scan camera (5). The light source (4) and the industrial line scan camera (5) are both located on the outer periphery of the material detection platform (1). When the material detection platform (1) and the piston material rotate synchronously, the light source (4) is turned on, and the industrial line scan camera (5) performs a scanning operation on the outer surface of the piston material.

4. The rapid and high-precision piston size and gloss detection device according to claim 1, characterized in that: A rotary motor (8) is provided below the frame, and the output end of the rotary motor (8) is connected to the material detection station (1).

5. The rapid and high-precision piston size and gloss detection device according to claim 1, characterized in that: The laser rangefinder (6) is fixedly mounted with a sliding arm (61), which passes through the cover plate (7). Each sliding arm (61) is equipped with a first linear module (62) that can drive it to move up and down. The first linear module (62) is fixedly mounted on the frame. When the laser rangefinder (6) and the sliding arm (61) move up and down along the distribution direction of the first linear module (62), the laser rangefinder (6) moves away from or closer to the piston material.

6. The rapid and high-precision piston size and gloss detection device according to claim 1, characterized in that: Both ends of the cover plate (7) are fixedly installed with sliders (71), and each slider (71) is equipped with a second linear module (72) that can drive it to move up and down. The second linear module (72) is fixedly installed on the frame. When the cover plate (7) and slider (71) move up and down along the distribution direction of the second linear module (72), the cover plate (7) moves away from or closer to the piston material.