A novel dimensional measuring device for automobile manufacturing inspection

By designing a measuring device that combines a telescopic rod and a rotating sleeve, the problem of difficult measurement inside car doors was solved, enabling efficient measurement of irregularly shaped parts, adapting to different measurement needs, and improving measurement efficiency.

CN224435289UActive Publication Date: 2026-06-30HUBEI CHUANGSHENG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI CHUANGSHENG TECHNOLOGY CO LTD
Filing Date
2025-09-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In current automotive manufacturing testing, it is difficult to measure the interior of irregularly shaped car doors, as conventional measuring equipment cannot penetrate them deeply, leading to inconvenience in measurement.

Method used

A measuring device was designed, comprising a telescopic rod, an infrared ranging probe, a rotating shaft, a rotating sleeve, a scale, and a pointer. By extending the telescopic rod and cooperating with the rotating sleeve, the infrared ranging probe can perform in-depth measurements. A spring and ball bearing structure is used to adapt to different measurement needs.

Benefits of technology

It enables convenient measurement of the interior of car door sheet metal, solves the problem that conventional measuring equipment cannot reach deep into the interior, adapts to different measurement needs, and improves measurement efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a novel dimensional measuring device for automobile manufacturing inspection, relating to the field of measuring equipment technology. It includes a telescopic rod with an infrared ranging probe at one end and a rotating shaft at the other end. A rotating sleeve is mounted on the outside of the rotating shaft, and a scale and pointer are also mounted on the outside of the rotating shaft. The telescopic rod can be extended, allowing the telescopic rod carrying the infrared ranging probe to be inserted into the sheet metal of a car door. The infrared ranging probe can measure distances inside the sheet metal. When rotation is needed to change the measurement angle, the rotating sleeve can be pulled, causing the infrared ranging probe to rotate. Simultaneously, the pointer can be visually observed. The scale rotates synchronously with the infrared ranging probe, thus controlling the rotation angle. This makes measuring the distance of gaps inside the car door sheet metal more convenient, solving the problem of difficult deep measurements with conventional measuring equipment.
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Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, specifically a new type of dimensional measuring device for automobile manufacturing inspection. Background Technology

[0002] In automotive manufacturing inspection, dimensional measuring devices play a crucial role. They can detect parameters such as the length and diameter of components like engine blocks and body stampings in real time, ensuring they are consistent with the tolerances in the design drawings. They can also perform pre-inspections on key components such as doors and dashboard brackets before assembly. Through online measurement systems, they can scan key dimensions such as the wheelbase and track width of the entire vehicle in real time, and record dimensional data to analyze the root causes of production errors and provide a basis for quality traceability.

[0003] In current automotive parts measurement, most methods involve visual inspection using measuring rulers or high-precision electronic measuring equipment. However, some vehicle parts have irregular shapes, such as the interior of car doors. When measuring the interior, it is more difficult to use conventional measuring instruments because the gaps reserved for wiring in the door sheet metal are small, making it difficult for conventional measuring equipment to measure deeply. Utility Model Content

[0004] The purpose of this invention is to provide a novel dimensional measuring device for automobile manufacturing inspection, in order to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel dimensional measuring device for automobile manufacturing inspection, comprising a telescopic rod, one end of which is rotatably connected to an infrared ranging probe, the other end of which is provided with a rotating shaft, a rotating sleeve is provided outside the rotating shaft, and a scale and pointer are provided outside the rotating shaft.

[0006] Preferably, a support plate is fixedly installed at one end of the rotating shaft, and a threaded groove is provided on the outer surface of the rotating shaft. The rotating shaft is threadedly connected to the inner wall of the rotating sleeve through the threaded groove.

[0007] Preferably, a force-bearing platform is rotatably connected to the outer surface of the rotating sleeve, the pointer is fixedly installed on the outer surface of the force-bearing platform, and the dial is fixedly installed on the outer surface of the rotating sleeve.

[0008] Preferably, a spring is sleeved on the outer surface of the rotating shaft, one end of the spring is fixedly installed to the outer surface of the rotating sleeve, and the other end of the spring is fixedly installed on the outer surface of the support plate.

[0009] Preferably, a telescopic sleeve is slidably connected to the outer surface of the telescopic rod, and one end of the telescopic sleeve is fixedly installed to one end of the rotating shaft.

[0010] Preferably, the telescopic rod has a sliding groove inside, and two sliding balls are slidably connected to the inner wall of the sliding groove. A second spring is provided inside the sliding groove, and both ends of the second spring are fixedly installed on the outer surface of the sliding balls. The telescopic sleeve has a groove on the inner side wall of the sliding balls, and the outer surface of the sliding balls and the outer surface of the groove are interlocked.

[0011] Preferably, the infrared ranging probe is fixedly mounted with a sliding rod, and a sliding sleeve is slidably connected to the outer surface of the sliding rod, with one end of the sliding sleeve being fixedly mounted to the outer surface of the rotating sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application utilizes the cooperation between a telescopic rod, an infrared ranging probe, a rotating shaft, a rotating sleeve, a dial, and a pointer. During use, the telescopic rod can be extended, and then the telescopic rod carrying the infrared ranging probe can be inserted into the car door sheet metal. The infrared ranging probe can measure the distance inside the sheet metal. When it is necessary to rotate to change the measurement angle, the rotating sleeve can be pulled, causing the infrared ranging probe to rotate. Simultaneously, the pointer can be visually observed. When the infrared ranging probe rotates, the dial rotates synchronously, thus controlling the rotation angle. This makes measuring the distance of gaps inside the car door sheet metal more convenient and solves the problem of difficult deep measurements with conventional measuring equipment.

[0014] 2. This application utilizes the cooperation between spring 2, the sliding ball, the telescopic rod, and the sliding groove. Spring 2 can always push the sliding ball, which can be inserted into the groove, thus fixing the telescopic rod inside the telescopic sleeve. When the telescopic rod is squeezed, the sliding ball will be pressed into the telescopic rod due to the thrust, thereby changing the overall length of the equipment and making it suitable for different measurement needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a novel dimensional measuring device for automobile manufacturing inspection according to this utility model;

[0016] Figure 2 This is a top view schematic diagram of the overall structure of a novel dimensional measuring device for automobile manufacturing inspection according to this utility model;

[0017] Figure 3 This is a schematic diagram of a spring-reset structure for a novel dimensional measuring device used in automobile manufacturing inspection according to this utility model;

[0018] Figure 4 This is a schematic diagram of the internal exploded structure of the telescopic sleeve of a novel dimensional measuring device for automobile manufacturing inspection according to this utility model;

[0019] Figure 5This is a schematic diagram of the internal structure of a chute in a novel dimensional measuring device for automobile manufacturing inspection according to this utility model.

[0020] The following are the labels in the diagram: 1. Telescopic rod; 2. Probe; 3. Rotating shaft; 4. Rotating sleeve; 5. Dial; 6. Pointer; 7. Support plate; 8. Force platform; 9. Spring 1; 10. Telescopic sleeve; 11. Slide groove; 12. Sliding ball; 13. Spring 2; 14. Slide rod; 15. Sliding sleeve. Detailed Implementation

[0021] 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.

[0022] Example: Figures 1-5 As shown, this utility model provides a novel dimensional measuring device for automobile manufacturing inspection. It includes a telescopic rod 1, with an infrared ranging probe 2 mounted at one end and a rotating shaft 3 rotatably connected to the other end. A rotating sleeve 4 is mounted on the outside of the rotating shaft 3, and a scale 5 and a pointer 6 are also mounted on the outside of the rotating shaft 3. In use, the telescopic rod 1 can be extended, and then the telescopic rod 1 carrying the infrared ranging probe 2 can be inserted into the car door sheet metal. The infrared ranging probe 2 can measure the distance inside the sheet metal. When it is necessary to rotate to change the measurement angle, the rotating sleeve 4 can be pulled, causing the infrared ranging probe 2 to rotate. Simultaneously, the pointer 6 can be visually observed. When the infrared ranging probe 2 rotates, the scale 5 rotates synchronously, thus controlling the rotation angle. This makes measuring the distance of the gap inside the car door sheet metal more convenient and solves the problem that conventional measuring equipment is difficult to use for deep measurements.

[0023] A support plate 7 is fixedly installed at one end of the rotating shaft 3. The outer surface of the rotating shaft 3 is provided with a threaded groove. The rotating shaft 3 is threadedly connected to the inner wall of the rotating sleeve 4 through the threaded groove. When in use, the support plate 7 can be pressed against the palm of the hand. When the rotating sleeve 4 is pulled with two fingers, the rotating sleeve 4 will move closer to the support plate 7 while rotating along the threaded groove.

[0024] The outer surface of the rotating sleeve 4 is rotatably connected to a force-bearing platform 8. The pointer 6 is fixedly installed on the outer surface of the force-bearing platform 8, and the dial 5 is fixedly installed on the outer surface of the rotating sleeve 4. Two finger sleeves are also installed on the outer surface of the force-bearing platform 8. Therefore, when pulling the rotating sleeve 4, the index and middle fingers can be passed through the finger sleeves to pull the force-bearing platform 8, so that the force-bearing platform 8 can drive the rotating sleeve 4 to move and rotate.

[0025] A spring 9 is fitted onto the outer surface of the rotating shaft 3. One end of the spring 9 is fixedly installed on the outer surface of the rotating sleeve 4, and the other end of the spring 9 is fixedly installed on the outer surface of the support plate 7. The spring 9 can always push the rotating sleeve 4. Therefore, when the hand stops pushing or even releases force, the spring 9 can push the rotating sleeve 4 back to its original position.

[0026] The telescopic rod 1 has a telescopic sleeve 10 slidably connected to its outer surface. One end of the telescopic sleeve 10 is fixedly installed with one end of the rotating shaft 3. Since the rotating shaft 3 is stationary, the telescopic rod 1 and the telescopic sleeve 10 will not be driven when the rotating sleeve 4 rotates. The telescopic rod 1 and the telescopic sleeve 10 can extend their length.

[0027] The telescopic rod 1 has a groove 11 inside, and two ball bearings 12 are slidably connected to the inner wall of the groove 11. A spring 13 is installed inside the groove 11, and both ends of the spring 13 are fixedly installed on the outer surface of the ball bearings 12. The telescopic sleeve 10 has a groove on the inner side wall of the ball bearings 12. The outer surface of the ball bearings 12 and the outer surface of the groove are interlocked. The spring 13 can always push the ball bearings 12, and the ball bearings 12 can be inserted into the groove, so that the telescopic rod 1 is fixed inside the telescopic sleeve 10. When the telescopic rod 1 is squeezed, the ball bearings 12 will be pressed into the telescopic rod 1 due to the thrust, thereby changing the overall length of the equipment and adapting it to different measurement needs.

[0028] The infrared ranging probe 2 is fixedly mounted with a sliding rod 14, and a sliding sleeve 15 is slidably connected to the outer surface of the sliding rod 14. One end of the sliding sleeve 15 is fixedly mounted to the outer surface of the rotating sleeve 4. When the rotating sleeve 4 rotates, the infrared ranging probe 2 can be driven to rotate through the sliding sleeve 15 and the sliding rod 14. At the same time, since the sliding rod 14 slides inside the sliding sleeve 15, the extension between the telescopic rod 1 and the telescopic sleeve 10 will not affect the transmission between the infrared ranging probe 2 and the rotating sleeve 4.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel dimensional measuring device for automobile manufacturing inspection, comprising a telescopic rod (1), characterized in that: One end of the telescopic rod (1) is rotatably connected to an infrared ranging probe (2), and the other end of the telescopic rod (1) is provided with a rotating shaft (3). A rotating sleeve (4) is provided on the outside of the rotating shaft (3), and a scale (5) and a pointer (6) are provided on the outside of the rotating shaft (3).

2. The novel dimensional measuring device for automobile manufacturing inspection according to claim 1, characterized in that: One end of the rotating shaft (3) is fixedly installed with a support plate (7), and the outer surface of the rotating shaft (3) is provided with a threaded groove. The rotating shaft (3) is threadedly connected to the inner wall of the rotating sleeve (4) through the threaded groove.

3. A novel dimensional measuring device for automobile manufacturing inspection according to claim 1, characterized in that: The outer surface of the rotating sleeve (4) is rotatably connected to a force-bearing platform (8). The pointer (6) is fixedly installed on the outer surface of the force-bearing platform (8), and the dial (5) is fixedly installed on the outer surface of the rotating sleeve (4).

4. A novel dimensional measuring device for automobile manufacturing inspection according to claim 2, characterized in that: A spring (9) is sleeved on the outer surface of the rotating shaft (3). One end of the spring (9) is fixedly installed on the outer surface of the rotating sleeve (4), and the other end of the spring (9) is fixedly installed on the outer surface of the support plate (7).

5. A novel dimensional measuring device for automobile manufacturing inspection according to claim 1, characterized in that: The telescopic rod (1) has a telescopic sleeve (10) slidably connected to its outer surface, and one end of the telescopic sleeve (10) is fixedly installed to one end of the rotating shaft (3).

6. A novel dimensional measuring device for automobile manufacturing inspection according to claim 5, characterized in that: The telescopic rod (1) has a sliding groove (11) inside. Two sliding balls (12) are slidably connected to the inner wall of the sliding groove (11). A second spring (13) is provided inside the sliding groove (11). Both ends of the second spring (13) are fixedly installed on the outer surface of the sliding ball (12). The telescopic sleeve (10) has a groove on the inner side wall of the sliding ball (12). The outer surface of the sliding ball (12) and the outer surface of the groove are interlocked.

7. A novel dimensional measuring device for automobile manufacturing inspection according to claim 1, characterized in that: The infrared ranging probe (2) is fixedly mounted with a slide rod (14), and a sliding sleeve (15) is slidably connected to the outer surface of the slide rod (14). One end of the sliding sleeve (15) is fixedly mounted to the outer surface of the rotating sleeve (4).