A glass thickness detector
By designing a fine-tuning mechanism and a clamping mechanism, the laser displacement sensor and the capacitive sensor are automatically adjusted, solving the problem that traditional detectors are difficult to adapt to the detection of glass of different shapes and angles, and improving detection accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA GUYAN BUILDING MATERIAL CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-16
AI Technical Summary
Existing glass thickness measuring instruments are difficult to adapt to the testing needs of glass with different shapes and placement angles, resulting in low testing accuracy and insufficient efficiency, making it difficult to meet the requirements of mass production.
The system employs a fine-tuning mechanism, including a U-shaped frame, sliding block, mounting base, and rotating base, to enable independent movement and angle adjustment of the laser displacement sensor and capacitive sensor in the X, Y, and Z axes. Combined with a clamping mechanism, it allows for rapid clamping and precise positioning of the glass.
It enables automated and rapid movement of the detection probe, improves detection accuracy and efficiency, adapts to the detection needs of complex surfaces, and expands the applicability of the detector.
Smart Images

Figure CN224365509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instruments, specifically to a glass thickness testing instrument. Background Technology
[0002] Glass, as an important industrial and building material, is widely used in building curtain walls, automobile manufacturing, electronic displays (such as mobile phone cover glass), photovoltaic energy, and home appliances. As downstream industries continuously increase their requirements for the precision, safety, and functionality of glass products, thickness uniformity has become one of the core indicators for measuring glass quality.
[0003] There are many existing technologies for glass thickness monitoring instruments, such as:
[0004] Chinese Patent (Application No.: CN202022319819.8) discloses a glass thickness detection device. A supporting foot is located beneath the base, and a vertical bracket is fixed to the upper side of the base. A crossbeam is mounted on the bracket, connected to the bracket via a first sliding connector. A detector is mounted on the crossbeam, and the detector is mounted on the crossbeam via a second sliding connector. A detection platform is located below the detector and rotatably positioned above the center of the base. The left end of the crossbeam is connected to a screw via a third connector. The screw is rotatably positioned vertically above the base, and a drive motor is connected below the screw. The drive motor is located inside the base on the left side. The bracket is located to the right of the screw and parallel to it. A limit switch is also installed on the crossbeam between the detector and the bracket. An electrical control box is located inside the base on the right side, and an operation panel is located above the right end of the base. This glass thickness detection device reduces the need for manual adjustment of the detector on the glass thickness detection platform, thus improving detection efficiency.
[0005] In the existing technology, the detection probe of the detector is usually installed in a relatively fixed position or has a limited range of movement, which makes it difficult to adapt to the detection needs of different shapes (such as curved glass), sizes and placement angles of glass at different positions, reducing the applicability of the detector. In addition, the traditional manual adjustment of the detection probe position results in low positioning accuracy and slow adjustment speed, which is not conducive to meeting the needs of mass production. Utility Model Content
[0006] This invention addresses the technical problems existing in the prior art by providing a glass thickness measuring instrument. It solves the problem that traditional measuring instruments are difficult to adapt to the testing needs of different shapes (such as curved glass), sizes, and placement angles of glass at different positions, thus reducing the applicability of the measuring instrument.
[0007] To achieve the above objectives, this utility model provides a glass thickness detector, including a gantry frame. The gantry frame contains a fine-tuning mechanism, wherein the fine-tuning mechanism includes a U-shaped frame. Sliding blocks are symmetrically slidably connected to the upper and lower ends of the U-shaped frame. Mounting seats are symmetrically arranged between two sliding blocks. A laser displacement sensor and a capacitance sensor are respectively arranged between the two mounting seats. The top of the laser displacement sensor is fixedly connected to the bottom of a rotating seat rotatably connected inside the upper mounting seat. The bottom of the capacitance sensor is fixedly connected to the top of a rotating seat rotatably connected inside the lower mounting seat. The fine-tuning mechanism simultaneously adjusts the X-axis, Y-axis, and Z-axis positions and angles of the laser displacement sensor and the capacitance sensor.
[0008] The beneficial effects of this utility model are:
[0009] 1. When the positions of the laser displacement sensor and the capacitance sensor need to be adjusted, the independent movement of the laser displacement sensor and the capacitance sensor in the X, Y, and Z axes can be achieved by moving the U-shaped frame, sliding block and mounting base in the fine-tuning mechanism. It can be automatically adjusted to the optimal detection position, realize the automated and rapid movement of the detection probe, and greatly improve the detection efficiency.
[0010] 2. For detection needs of different shapes (such as curved glass), when the angle of the laser displacement sensor and the capacitive sensor needs to be adjusted, the angle of the laser displacement sensor and the capacitive sensor can be adjusted by rotating the rotating seat in the fine-tuning mechanism to adapt to the detection needs of curved glass or inclined surfaces.
[0011] Based on the above technical solution, the present invention can be further improved as follows.
[0012] Preferably, a fixed frame is fixedly connected to the middle of the inner side of the gantry frame, clamping plates are symmetrically arranged inside the fixed frame, and sliding grooves are symmetrically arranged on the front and rear sides of the fixed frame. Connecting rods are symmetrically fixedly connected to both ends of the clamping plates, the connecting rods slide inside the sliding grooves, and fastening nuts are threaded to the outer side of the connecting rods.
[0013] The advantages of adopting the above-mentioned further solutions are that they enable rapid clamping and precise positioning of glass of different sizes, reduce human error, improve glass stability, and prevent displacement during the testing process.
[0014] Preferably, a first lead screw is threaded to the upper end of the U-shaped frame, one end of which is fixedly connected to the output end of the first motor. Second lead screws are symmetrically rotatably connected to the upper and lower ends of the U-shaped frame. The inner side of the sliding block is threaded to the outer side of the second lead screw. One end of the upper second lead screw is fixedly connected to the output end of the second motor. A transmission chain is driven to the outer ends of the two second lead screws. A cylinder is fixedly connected to one side of each of the two sliding blocks. The output end of the cylinder is connected to one side of the mounting base. One end of the rotating base is fixedly connected to the output end of the third motor.
[0015] The beneficial effects of adopting the above-mentioned further solution are that the overall structure enables the sensor to move automatically and quickly, which is conducive to the rapid detection needs of glass with different shapes (such as curved glass), sizes and placement angles at different positions, improving the applicability of the detector and greatly improving the detection efficiency of the detector.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] The fine-tuning mechanism enables independent movement and angular rotation of the laser displacement sensor and the capacitive sensor in the X, Y, and Z axes. It can automatically adjust to the optimal detection position, realize the automated and rapid movement of the detection probe, and greatly improve the detection efficiency. Furthermore, through the symmetrical mounting base and rotating base in the fine-tuning mechanism, the two sensors can maintain a precise relative position and adjust their angles independently, enabling collaborative detection of complex surfaces. Attached Figure Description
[0018] Figure 1 This is an isometric view of one side of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0020] Figure 3 This is a top view of the structure of this utility model;
[0021] Figure 4 This is a top view cross-sectional structural diagram of the present invention.
[0022] The meanings of the labels in the diagram are as follows:
[0023] 1. Portal frame;
[0024] 2. Fixed frame; 21. Clamping plate; 22. Slide groove; 23. Connecting rod; 24. Fastening nut;
[0025] 3. Fine-tuning mechanism; 31. U-shaped frame; 32. First lead screw; 33. First motor; 34. Sliding block; 35. Second lead screw; 36. Second motor; 37. Transmission chain; 38. Cylinder; 39. Mounting base; 310. Rotating base; 311. Third motor;
[0026] 4. Laser displacement sensor; 5. Capacitive sensor. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-4 As shown, this embodiment provides a glass thickness detector, including a gantry frame 1. Considering that traditional detectors are difficult to adapt to the detection needs of different shapes (such as curved glass), sizes, and placement angles of glass at different positions, thus reducing the applicability of the detector, a fine-tuning mechanism 3 is provided inside the gantry frame 1. The fine-tuning mechanism 3 includes a U-shaped frame 31, with sliding blocks 34 symmetrically slidably connected at the upper and lower ends inside the U-shaped frame 31. Mounting seats 39 are symmetrically arranged between the two sliding blocks 34. A laser displacement sensor 4 and a capacitance sensor 5 are respectively arranged between the two mounting seats 39. The top of the laser displacement sensor 4 is fixedly connected to the bottom of a rotating seat 310 rotatably connected inside the upper mounting seat 39, and the bottom of the capacitance sensor 5 is fixedly connected to the top of the rotating seat 310 rotatably connected inside the lower mounting seat 39. The fine-tuning mechanism 3 can simultaneously adjust the X-axis, Y-axis, and Z-axis positions and angles of the laser displacement sensor 4 and the capacitance sensor 5.
[0029] In summary, the improvement of this embodiment lies in:
[0030] The fine-tuning mechanism 3 enables independent movement and angular rotation of the laser displacement sensor 4 and the capacitive sensor 5 in the X, Y, and Z axes, automatically adjusting them to the optimal detection position, thus improving the accuracy and reliability of the detection. The laser displacement sensor 4 features high precision and non-contact operation, quickly acquiring accurate positional information of the upper surface of the glass. The capacitive sensor 5 exhibits good adaptability to detecting the lower surface of the glass, unaffected by factors such as surface roughness and color. The two sensors work collaboratively, and through a data fusion algorithm, the detection errors of a single sensor are eliminated, achieving high-precision measurement of the glass thickness.
[0031] Based on the above, other structures also need to be disclosed in detail, such as:
[0032] Considering that glass may shift or wobble during manual placement, affecting testing accuracy, a fixed frame 2 is fixedly connected to the middle of the portal frame 1. A clamping plate 21 is symmetrically arranged inside the fixed frame 2, and sliding grooves 22 are symmetrically arranged on both the front and rear sides of the fixed frame 2. Connecting rods 23 are symmetrically fixedly connected to both ends of the clamping plate 21. The connecting rods 23 slide within the sliding grooves 22, and a fastening nut 24 is threaded onto the outer side of the connecting rods 23. By sliding the connecting rods 23 within the sliding grooves 22, the distance between the two sliding grooves 22 is adjusted. Then, by rotating the fastening nut 24 to one side of the clamping plate 21, the position of the connecting rods 23 is locked, enabling rapid clamping and precise positioning of glass of different sizes, reducing human error, improving glass stability, and preventing displacement during testing.
[0033] Considering that the existing equipment requires frequent manual adjustment of the detection position, which is not conducive to the needs of mass production and detection, a first lead screw 32 is threadedly connected to the upper end of the U-shaped frame 31. One end of the first lead screw 32 is fixedly connected to the output end of the first motor 33. The first motor 33 drives the first lead screw 32 to rotate, and the internal thread of the U-shaped frame 31 meshes with the external thread of the first lead screw 32, thereby driving the U-shaped frame 31 to simultaneously adjust the position of the laser displacement sensor 4 and the capacitive sensor 5 in the X-axis direction.
[0034] The upper and lower ends of the U-shaped frame 31 are symmetrically connected to the second lead screw 35. The inner side of the sliding block 34 is threadedly connected to the outer side of the second lead screw 35. One end of the upper second lead screw 35 is fixedly connected to the output end of the second motor 36. The outer ends of the two second lead screws 35 are connected to the transmission chain 37. The second motor 36 drives one second lead screw 35 to rotate. The rotation of the second lead screw 35 drives the transmission chain 37 to drive the other second lead screw 35 to rotate. The inner threads of the two sliding blocks 34 mesh with the outer threads of the second lead screw 35, thereby driving the two sliding blocks 34 to simultaneously adjust the position of the laser displacement sensor 4 and the capacitive sensor 5 in the Y-axis direction.
[0035] Two sliding blocks 34 are fixedly connected to one side of a cylinder 38. The output end of the cylinder 38 is connected to one side of the mounting base 39. The cylinder 38 pushes the mounting base 39 up and down to adjust the Z-axis position of the laser displacement sensor 4 and the capacitive sensor 5.
[0036] One end of the rotating base 310 is fixedly connected to the output end of the third motor 311. The rotating base 310 is driven to rotate inside the mounting base 39 by the third motor 311, so as to adjust the tilt angle of the laser displacement sensor 4 and the capacitive sensor 5, and adapt to the detection needs of curved glass or inclined surfaces.
[0037] The overall structure enables automated and rapid movement of the sensor, which is beneficial for quickly detecting glass of different shapes (such as curved glass), sizes, and placement angles at different locations, thereby increasing the applicability of the detector and significantly improving its detection efficiency.
[0038] In summary, the working principle of this solution is as follows:
[0039] First, the glass is placed between two clamping plates 21. Then, the connecting rod 23 slides inside the slide groove 22. The distance between the two slide grooves 22 is adjusted to determine the position of the connecting rod 23. After that, the fastening nut 24 is turned to one side of the clamping plate 21 to tighten it, locking the position of the connecting rod 23. This achieves rapid clamping and precise positioning of glass of different sizes, reducing human error and improving glass stability, preventing displacement during the inspection process. Then, according to the inspection requirements of different positions, the first motor 33 drives the first lead screw 32 to rotate. The internal thread of the U-shaped frame 31 meshes with the external thread of the first lead screw 32, thereby driving the U-shaped frame 31 to simultaneously adjust the X-axis position of the laser displacement sensor 4 and the capacitive sensor 5. The second motor 36 drives a second... The rotation of lead screw 35 drives the transmission chain 37, which in turn drives another lead screw 35 to rotate. The internal threads of the two sliding blocks 34 mesh with the external threads of the second lead screw 35, thereby driving the two sliding blocks 34 to simultaneously adjust the Y-axis position of the laser displacement sensor 4 and the capacitance sensor 5. The cylinder 38 pushes the mounting base 39 up and down to adjust the Z-axis position of the laser displacement sensor 4 and the capacitance sensor 5. The third motor 311 drives the rotating seat 310 to rotate inside the mounting base 39 to adjust the tilt angle of the laser displacement sensor 4 and the capacitance sensor 5, adapting to the detection needs of curved glass or inclined surfaces, improving the applicability of the detector, and significantly improving the detection efficiency of the detector.
[0040] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A glass thickness measuring instrument, comprising a gantry frame (1), characterized in that: The portal frame (1) is equipped with a fine-tuning mechanism (3), wherein: the fine-tuning mechanism (3) includes a U-shaped frame (31), and sliding blocks (34) are symmetrically slidably connected at the upper and lower ends inside the U-shaped frame (31). Mounting seats (39) are symmetrically arranged between the two sliding blocks (34). A laser displacement sensor (4) and a capacitance sensor (5) are respectively arranged between the two mounting seats (39). The top of the laser displacement sensor (4) is fixedly connected to the bottom of the rotating seat (310) rotatably connected inside the upper mounting seat (39). The bottom of the capacitance sensor (5) is fixedly connected to the top of the rotating seat (310) rotatably connected inside the lower mounting seat (39). The fine-tuning mechanism (3) can simultaneously adjust the X-axis, Y-axis, and Z-axis positions and angles of the laser displacement sensor (4) and the capacitance sensor (5).
2. The glass thickness measuring instrument according to claim 1, characterized in that: The portal frame (1) is fixedly connected to a fixed frame (2) at the middle of its interior, and clamping plates (21) are symmetrically arranged inside the fixed frame (2).
3. The glass thickness measuring instrument according to claim 2, characterized in that: The fixed frame (2) has symmetrical sliding grooves (22) on the front and back sides inside. The clamping plate (21) has symmetrical connecting rods (23) fixedly connected at both ends. The connecting rods (23) slide inside the sliding grooves (22). The connecting rods (23) are threaded with fastening nuts (24) on the outside.
4. A glass thickness measuring instrument according to claim 1, characterized in that: The upper end of the U-shaped frame (31) is threaded with a first lead screw (32), and one end of the first lead screw (32) is fixedly connected to the output end of the first motor (33).
5. A glass thickness measuring instrument according to claim 1, characterized in that: The upper and lower ends of the U-shaped frame (31) are symmetrically connected to the second lead screw (35). The inner side of the sliding block (34) is threadedly connected to the outer side of the second lead screw (35). One end of the upper second lead screw (35) is fixedly connected to the output end of the second motor (36). The outer ends of the two second lead screws (35) are connected to a transmission chain (37).
6. A glass thickness measuring instrument according to claim 1, characterized in that: A cylinder (38) is fixedly connected to one side of each of the two sliding blocks (34), and the output end of the cylinder (38) is connected to one side of the mounting base (39).
7. A glass thickness measuring instrument according to claim 1, characterized in that: One end of the rotating seat (310) is fixedly connected to the output end of the third motor (311).