Self-adaptive compression-resistant clamp based on sensor feedback

By integrating sensors and control units into an adaptive pressure-resistant fixture, the problem of existing equipment being unable to automatically adjust the clamping force is solved, enabling efficient and accurate pressure resistance testing and ensuring the reliability of test results and the safety of the equipment.

CN224152174UActive Publication Date: 2026-04-21SHANGHAI BANGZHONG NEW MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BANGZHONG NEW MATERIAL
Filing Date
2025-03-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing compressive strength testing equipment lacks flexibility and cannot automatically adjust the clamping force according to different material properties, resulting in inaccurate test results and complicated operation. It is particularly unsuitable for testing precision materials, and can easily damage materials or cause data distortion.

Method used

Design an adaptive anti-compression clamp based on sensor feedback, integrating a pressure sensor and a control unit. By detecting and calculating in real time, the clamping force is dynamically adjusted to ensure a constant clamping force, thereby improving testing accuracy and efficiency.

Benefits of technology

It achieves intelligent clamping force adjustment, which improves the accuracy and efficiency of testing, reduces human error, extends the service life of equipment, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sensor feedback-based self-adaptive compression-resistant clamp in the technical field of compression-resistant test equipment, which comprises a rectangular frame, a gear is rotatably connected to the middle of the inner side of a groove, one side of a first rack and one side of a second rack are slidably arranged in the groove, and the other side of the first rack and the other side of the second rack are slidably arranged in the groove. The first rack and the second rack are connected to the two sides of the gear in a meshed mode correspondingly, the two ends of the sliding rail are slidably connected with a lower sliding plate and an upper sliding plate correspondingly, a lower clamping plate is rotatably connected to the upper end of the first fixing shaft, and a containing groove is fixedly formed in the middle of the surface of the lower clamping plate. One end of the bottom of the second fixing shaft is rotatably connected with an upper clamping plate, a more intelligent compression resistance test solution is provided, and an advanced sensor and a control system are integrated, so that dynamic adjustment of clamping force is realized, high efficiency and accuracy of a test process are ensured, errors caused by manual adjustment are reduced, and the test efficiency is improved. And meanwhile, the service life of equipment is prolonged, and the safety performance is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of pressure resistance testing equipment, specifically relating to an adaptive pressure resistance fixture based on sensor feedback. Background Technology

[0002] With the increasing automation of industry, the requirements for compression testing are also becoming more stringent. Traditional compression testing devices mostly use fixed clamping forces, which cannot be automatically adjusted according to the characteristics of different materials. This not only limits the accuracy of test results but also increases the difficulty of experimental operation. In recent years, with the development of sensing technology and microprocessor technology, intelligent compression testing equipment has gradually become a research hotspot. These devices, by integrating sensors and controllers, can adjust parameters in real time during the testing process, improving testing efficiency and accuracy.

[0003] Currently, there are two main types of compression testing equipment on the market. One type is manually adjustable compression clamps, where operators need to manually adjust the clamping force based on experience. While this method is lower in cost, it is significantly affected by human factors, making it difficult to guarantee the consistency and accuracy of test results. The other type is semi-automatic adjustable compression clamps. These clamps are typically equipped with simple sensors and motors, allowing them to adjust the clamping force according to a preset program. However, they lack flexible adaptive adjustment capabilities, requiring multiple trials to achieve the ideal testing conditions for materials with different properties. The advantages of both types are relatively low cost and ease of operation, but their disadvantages are significant, especially their poor applicability to precision material testing, which can easily cause material damage or distorted test data.

[0004] The main drawback of existing technologies is their lack of flexibility, making it impossible to quickly adjust to different test objects. Especially when dealing with new or unknown materials, it is often necessary to conduct a large number of experiments to determine the optimal test conditions. This is not only time-consuming and labor-intensive, but may also damage samples and equipment due to improper operation, seriously affecting test efficiency and reliability. To address this, we propose an adaptive pressure-resistant fixture based on sensor feedback. Utility Model Content

[0005] The purpose of this invention is to provide an adaptive anti-compression clamp based on sensor feedback to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adaptive pressure-resistant clamp based on sensor feedback, comprising a rectangular frame, a groove on the surface of the rectangular frame, a gear on the inner side of the groove, a sliding groove, a first rack, and a second rack on both sides of the inner side of the groove, slide rails installed at both ends of the rectangular frame, a lower slide plate and an upper slide plate at both ends of the slide rails, a first fixing plate on one side of the lower slide plate, a first fixing shaft installed above the first fixing plate, a lower clamping plate above the first fixing shaft, a placement groove on the surface of the lower clamping plate, first pressure sensors on both sides of the surface of the lower clamping plate, a second fixing plate on one side of the upper slide plate, a second fixing shaft at the bottom of the second fixing plate, an upper clamping plate at the bottom of the second fixing shaft, a second pressure sensor on the surface of the upper clamping plate, a control unit installed at the top of the rectangular frame, a scale installed on one side of the rectangular frame, and a motor installed on the back of the rectangular frame.

[0007] Preferably, a gear is rotatably connected to the inner center of the groove, and one side of the first rack and the second rack are slidably disposed inside the groove, and the first rack and the second rack are respectively meshed and connected to the two sides of the gear. The two ends of the slide rail are respectively slidably connected to a lower slide plate and an upper slide plate.

[0008] Preferably, a lower clamping plate is rotatably connected to the upper end of the first fixed shaft.

[0009] Preferably, a placement groove is fixedly formed in the middle of the surface of the lower clamping plate.

[0010] Preferably, an upper clamping plate is rotatably connected to one bottom end of the second fixed shaft.

[0011] Preferably, the output end of the motor is fixedly connected to one side of the gear, and the motor is electrically connected to the control unit.

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

[0013] By providing a more intelligent compression testing solution, and integrating advanced sensors and control systems, dynamic adjustment of clamping force is achieved, ensuring the efficiency and accuracy of the testing process, reducing errors caused by manual adjustment, extending equipment lifespan, and improving safety performance. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the present invention;

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3This is a schematic diagram of the top structure of this utility model.

[0017] In the diagram: 1. Rectangular frame; 2. Groove; 3. Gear; 4. Slide groove; 5. First rack; 6. Second rack; 7. Slide rail; 8. Lower slide plate; 9. First fixing plate; 10. First fixing shaft; 11. Lower clamping plate; 12. Placement slot; 13. First pressure sensor; 14. Upper slide plate; 15. Second fixing plate; 16. Second fixing shaft; 17. Upper clamping plate; 18. Second pressure sensor; 19. Control unit; 20. Ruler; 21. Motor. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: an adaptive anti-compression fixture based on sensor feedback, including a rectangular frame 1. The surface of the rectangular frame 1 has a groove 2, and a gear 3 is provided inside the groove 2. The inner sides of the groove 2 have sliding grooves 4, a first rack 5, and a second rack 6. Slide rails 7 are installed at both ends of the rectangular frame 1. Lower slide plates 8 and upper slide plates 14 are provided at both ends of the slide rails 7. A first fixing plate 9 is provided on one side of the lower slide plate 8. A first fixing shaft 10 is installed above the first fixing plate 9. The rectangular frame 1 is provided with a lower clamping plate 11, the surface of which is provided with a placement groove 12. The two sides of the surface of the lower clamping plate 11 are provided with first pressure sensors 13. The upper slide plate 14 is provided with a second fixing plate 15 on one side. The bottom of the second fixing plate 15 is provided with a second fixing shaft 16. The bottom of the second fixing shaft 16 is provided with an upper clamping plate 17. The surface of the upper clamping plate 17 is provided with a second pressure sensor 18. The top of the rectangular frame 1 is equipped with a control unit 19. The side of the rectangular frame 1 is equipped with a scale 20. The back of the rectangular frame 1 is equipped with a motor 21.

[0020] Specifically, a gear 3 is rotatably connected to the inner center of the groove 2. One side of the first rack 5 and the second rack 6 are slidably disposed inside the groove 2, and the first rack 5 and the second rack 6 are respectively meshed and connected to the two sides of the gear 3. The two ends of the slide rail 7 are respectively slidably connected to the lower slide plate 8 and the upper slide plate 14. The upper end of the first fixed shaft 10 is rotatably connected to the lower clamping plate 11. The lower clamping plate 11 has a placement groove 12 fixedly opened in the middle of its surface. The bottom end of the second fixed shaft 16 is rotatably connected to the upper clamping plate 17. The output end of the motor 21 is fixedly connected to one side of the gear 3. The motor 21 is electrically connected to the control unit 19.

[0021] In this embodiment, during specific use, the test material is placed on the placement groove 12. The first pressure sensor 13 and the second pressure sensor 18 operate to detect the initial contact pressure. After receiving the signal from the first pressure sensor 13, the control unit 19 calculates the required clamping force and drives the gear 3 to rotate via the motor 21. The rotation of the gear 3 drives the first rack 5 and the second rack 6 on both sides to move. The movement of the first rack 5 and the second rack 6 drives the upper clamping plate 17 and the lower clamping plate 11 to move towards each other, thereby moving the upper clamping plate 17 and the lower clamping plate 11 up and down to achieve stable clamping of the material. Throughout the test, the system continuously collects pressure data and compares it with the predetermined value, making corresponding adjustments as necessary to maintain a constant clamping force until the test is completed. The range and accuracy between the upper clamping plate 17 and the lower clamping plate 11 can be adjusted using the set scale 20.

[0022] The first pressure sensor 13 and the second pressure sensor 18 are selected with high sensitivity and stability to ensure accurate measurement of minute changes; the motor 21 is a DC servo motor 21 because its speed is stable and controllable; the gear 3 is made of high-strength alloy steel to enhance durability and transmission efficiency.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sensor feedback based adaptive compression jig comprising a rectangular frame (1) characterized by: The rectangular frame (1) has a groove (2) on its surface. A gear (3) is provided on the inner side of the groove (2). A slide groove (4), a first rack (5), and a second rack (6) are provided on both sides of the inner side of the groove (2). A slide rail (7) is installed at both ends of the rectangular frame (1). A lower slide plate (8) and an upper slide plate (14) are provided at both ends of the slide rail (7). A first fixing plate (9) is provided on one side of the lower slide plate (8). A first fixing shaft (10) is installed above the first fixing plate (9). A lower clamping plate (11) is provided above the first fixing shaft (10). The surface of the lower clamping plate (11) is... The surface is provided with a placement groove (12), the lower clamping plate (11) is provided with a first pressure sensor (13) on both sides of the surface, the upper sliding plate (14) is provided with a second fixing plate (15) on one side, the second fixing plate (15) is provided with a second fixing shaft (16) at the bottom, the second fixing shaft (16) is provided with an upper clamping plate (17) at the bottom, the upper clamping plate (17) is provided with a second pressure sensor (18) on the surface, the top of the rectangular frame (1) is provided with a control unit (19), the side of the rectangular frame (1) is provided with a scale (20), and the back of the rectangular frame (1) is provided with a motor (21).

2. The self-adapting compression fixture based on sensor feedback according to claim 1, wherein: A gear (3) is rotatably connected to the inner center of the groove (2). One side of the first rack (5) and the second rack (6) are slidably disposed inside the groove (2), and the first rack (5) and the second rack (6) are respectively meshed and connected to the two sides of the gear (3). The two ends of the slide rail (7) are respectively slidably connected to the lower slide plate (8) and the upper slide plate (14).

3. The self-adapting compression fixture based on sensor feedback according to claim 1, wherein: The upper end of the first fixed shaft (10) is rotatably connected to a lower clamping plate (11).

4. The self-adapting compression fixture based on sensor feedback according to claim 1, wherein: A placement groove (12) is fixedly opened in the middle of the surface of the lower clamping plate (11).

5. The self-adapting compression fixture based on sensor feedback according to claim 1, wherein: The bottom end of the second fixed shaft (16) is rotatably connected to an upper clamping plate (17).

6. The self-adapting compression fixture based on sensor feedback according to claim 1, wherein: The output end of the motor (21) is fixedly connected to one side of the gear (3), and the motor (21) is electrically connected to the control unit (19).