Robot automatic thickness measurement detection tooling
By designing a robotic automatic thickness measurement fixture, which combines a thickness probe and a contact sensor, the problem of inaccurate manual thickness measurement was solved, enabling automated inspection of large-area sprayed surfaces and improving the accuracy and efficiency of thickness measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI HONGDU AVIATION IND GRP
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
AI Technical Summary
Manual thickness measurement suffers from inaccurate point selection and unstable measurement force, affecting the overall thickness measurement time and accuracy of spraying, making it difficult to meet the automated inspection needs of large-area sprayed surfaces.
An automated thickness measurement fixture for robots was designed, including a thickness measuring probe, a contact sensor, a sensor positioning frame, a thickness measuring probe mounting sleeve, a joint bearing, a scissor telescopic structure, a detection cylinder, and a positioning cylinder. The joint bearing drives the scissor telescopic structure to move, controlling the contact between the measurement fixture and the surface to be measured. The contact sensor provides feedback to adjust the position of the thickness measuring probe, thereby achieving automated measurement.
It enables automated inspection of large-area sprayed surfaces, saving manpower and improving thickness measurement accuracy and efficiency.
Smart Images
Figure CN224552357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aircraft structure inspection technology, and in particular to a robotic automatic thickness measurement tooling. Background Technology
[0002] Metallic or non-metallic surfaces are typically coated with paint to create a protective layer, hence the term "spray painting." Paint thickness is a crucial indicator of paint quality, making paint film thickness measurement an essential step. With the increasing automation and intelligence of spray painting, more and more robots and robotic arms are being used in production, laying the foundation for automated thickness measurement by robots. Manual thickness measurement of large-area sprayed surfaces requires selecting numerous measurement points, and suffers from limitations such as inconsistent point selection accuracy and unstable measurement force, affecting the overall time and accuracy of thickness measurement. Utility Model Content
[0003] The technical problem solved by this utility model is to provide an automatic thickness measurement and inspection fixture for robots, so as to solve the problems existing in the above-mentioned background technology.
[0004] The technical problem solved by this utility model is achieved by the following technical solution:
[0005] An automated thickness measurement fixture for robots includes a thickness probe, a contact sensor, a sensor positioning frame, a thickness probe mounting sleeve, a joint bearing, a scissor-type telescopic structure, a detection cylinder, a positioning cylinder, and a mounting frame. The scissor-type telescopic structure is mounted on one side of the mounting frame, and a joint bearing for sliding connection with the scissor-type telescopic structure is mounted on the other side of the mounting frame. The joint bearing is connected to both the detection cylinder and the positioning cylinder. The sensor positioning frame is mounted below the scissor-type telescopic structure. One end of the thickness probe mounting sleeve is mounted on the scissor-type telescopic structure, and the other end is embedded within the sensor positioning frame. The thickness probe is mounted on the thickness probe mounting sleeve and extends beyond the sensor positioning frame. A contact sensor is mounted on the sensor positioning frame.
[0006] In this invention, multiple contact sensors are installed on the sensor positioning frame.
[0007] In this invention, the upper part of the thickness probe mounting sleeve is a columnar structure, and the lower part is an arc-shaped structure with telescopic function, so that the sensor positioning frame has good contact with the detection surface.
[0008] In this utility model, the spherical bearing includes a slider, a spherical bearing body, and a spherical plate. One end of the slider is connected to a scissor telescopic structure, the other end of the slider is connected to the spherical bearing body, and the spherical bearing body is connected to the spherical plate.
[0009] In this utility model, a scissor telescopic structure includes a scissor fork, a slide plate, and a slide rail. The scissor fork is mounted on the slide plate, and a slide rail is provided on one side of the slide plate for moving a slider on a joint bearing, thereby controlling the distance between the detection fixture and the thickness measuring surface. A through hole is provided in the middle of the slide plate for limiting the installation position of the thickness measuring probe mounting sleeve.
[0010] Beneficial effects: This utility model is suitable for large-area spray coating inspection, and can also perform automated inspection based on inspection points, effectively saving human resources and meeting usage requirements. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.
[0012] Figure 2 This is a schematic diagram of the thickness probe mounting sleeve structure in a preferred embodiment of the present invention.
[0013] Figure 3 This is a schematic diagram of the scissor-type telescopic structure in a preferred embodiment of the present invention.
[0014] Figure 4 This is a schematic diagram of the installation of the joint bearing, the detection cylinder, and the positioning cylinder in a preferred embodiment of the present invention. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0016] See Figures 1-4 An automated thickness measurement fixture for robots includes a thickness probe 1, a contact sensor 2, a sensor positioning frame 3, a thickness probe mounting sleeve 4, a joint bearing 5, a scissor-type telescopic structure 6, a detection cylinder 7, a positioning cylinder 8, and a mounting frame 9. The scissor-type telescopic structure 6 is mounted on one side of the mounting frame 9, and the joint bearing 5, which is slidably connected to the scissor-type telescopic structure 6, is mounted on the other side of the mounting frame 9. The joint bearing 5 is connected to the detection cylinder 7 and the positioning cylinder 8, respectively. The sensor positioning frame 3 is installed below the scissor-type telescopic structure 6. One end of the thickness probe mounting sleeve 4 is mounted on the scissor-type telescopic structure 6, and the other end of the thickness probe mounting sleeve 4 is embedded in the sensor positioning frame 3. The thickness probe 1 is mounted on the thickness probe mounting sleeve 4 and extends out of the sensor positioning frame 3. The contact sensor 2 is mounted on the sensor positioning frame 3.
[0017] In this embodiment, multiple contact sensors 2 are installed on the sensor positioning frame 3.
[0018] In this embodiment, the upper part of the thickness probe mounting sleeve 4 is a columnar structure, and the lower part is an arc-shaped structure with telescopic function, so that the sensor positioning frame 3 has good contact with the detection surface.
[0019] In this embodiment, the spherical bearing 5 includes a slider 51, a spherical bearing body 52, and a joint plate 53. One end of the slider 51 is connected to the scissor telescopic structure 6, the other end of the slider 51 is connected to the spherical bearing body 52, and the spherical bearing body 52 is connected to the joint plate 53.
[0020] In this embodiment, the scissor telescopic structure 6 includes a scissor fork 61, a slide plate 62, and a slide rail 63. The scissor fork 61 is mounted on the slide plate 62. A slide rail 63 is provided on one side of the slide plate 62 for the movement of the slider 51 on the spherical bearing 5, thereby controlling the distance between the detection fixture and the thickness measuring surface. A through hole is provided in the middle of the slide plate 62 for limiting the installation position of the thickness measuring probe mounting sleeve 4.
[0021] In this embodiment, during use, the mounting bracket 9 is installed on the robot arm, and the robot moves and positions itself to the detection position. The joint bearing 5 is controlled by the detection cylinder 7 and the positioning cylinder 8. The joint bearing 5 drives the scissor telescopic structure 6 to move, thereby controlling the distance between the detection fixture and the thickness measurement surface. The detection probe is installed into the through hole through the thickness measurement probe mounting sleeve 4. The detection fixture contacts the detection surface, and the joint bearing 5 is adjusted according to the contact force fed back by the contact sensor 2. The thickness measurement probe 1 is used to test the paint film thickness, thereby completing the thickness measurement test.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A robotic automatic thickness measurement fixture, comprising a thickness probe, a contact sensor, a sensor positioning frame, a thickness probe mounting sleeve, a joint bearing, a scissor-type telescopic structure, a detection cylinder, a positioning cylinder, and a mounting frame, characterized in that, A scissor-type telescopic structure is installed on one side of the mounting frame, and a joint bearing for sliding connection with the scissor-type telescopic structure is installed on the other side of the mounting frame. The joint bearing is connected to the detection cylinder and the positioning cylinder respectively. A sensor positioning frame is installed below the scissor-type telescopic structure. One end of the thickness measuring probe mounting sleeve is installed on the scissor-type telescopic structure, and the other end of the thickness measuring probe mounting sleeve is embedded in the sensor positioning frame. The thickness measuring probe is installed on the thickness measuring probe mounting sleeve and extends out of the sensor positioning frame. A contact sensor is installed on the sensor positioning frame.
2. The robotic automatic thickness measurement fixture according to claim 1, characterized in that, The sensor positioning frame is equipped with multiple contact sensors.
3. The robotic automatic thickness measurement fixture according to claim 1, characterized in that, The upper part of the thickness probe mounting sleeve is a columnar structure, and the lower part is an arc-shaped structure with telescopic function.
4. The robotic automatic thickness measurement fixture according to claim 1, characterized in that, The spherical bearing includes a slider, a spherical bearing body, and a joint plate. One end of the slider is connected to a scissor-type telescopic structure, the other end of the slider is connected to the spherical bearing body, and the spherical bearing body is connected to the joint plate.
5. The robotic automatic thickness measurement fixture according to claim 1, characterized in that, The scissor telescopic structure includes a scissor fork, a slide plate, and a slide rail. The scissor fork is mounted on the slide plate, and a slide rail is provided on one side of the slide plate for the movement of a slider on a joint bearing. A through hole is provided in the middle of the slide plate for limiting the installation position of the thickness probe mounting sleeve.