A liquid crystal glass thickness detection device
Patent Information
- Application Number
- CN202522391240.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-11
AI Technical Summary
Existing LCD glass thickness testing equipment has a limited testing range, inconvenient probe position adjustment, and insufficient testing accuracy, making it difficult to meet the testing needs of glass substrates of different sizes and thicknesses.
A dual-drive component system is adopted. The first drive component drives the slider and column to move along the X direction, and the second drive component drives the slider to move along the Y direction. Combined with the nut and connecting rod, the position of the measuring probe is adjusted to achieve full coverage and precise alignment of the measuring probe in the XY plane.
It significantly improves the detection range and accuracy, adapts to the detection of glass substrates of different sizes and thicknesses, enhances the flexibility and accuracy of detection, reduces the substrate defect rate, and improves the operational flexibility and detection efficiency of the equipment.
Smart Images

Figure CN224933463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal glass manufacturing technology, and in particular to a liquid crystal glass thickness detection device. Background Technology
[0002] In the production of LCD glass, the thickness of the glass substrate is a crucial quality indicator that is highly valued. Thickness testing enables real-time monitoring of substrate thickness variations, ensuring that each substrate meets preset standards. High-precision instrument measurements allow for the timely detection and handling of thickness anomalies, significantly improving product yield. Uneven substrate thickness can lead to errors in subsequent processing, directly impacting the stability of display performance. Therefore, based on manufacturing requirements, thickness sampling inspection of glass substrates is necessary. The collected data is analyzed and processed, and the results are fed back to upstream processes to assist in identifying the causes of thickness defects. If necessary, processes can be adjusted based on the test results, thereby reducing substrate defect rates, improving glass quality, and increasing equipment efficiency.
[0003] In the existing technology, liquid crystal glass thickness detection equipment often suffers from problems such as limited detection range, inconvenient adjustment of the measuring probe position, and insufficient detection accuracy, making it difficult to meet the flexible detection needs of glass substrates of different sizes and thicknesses. Therefore, this utility model provides a liquid crystal glass thickness detection equipment with reasonable structure, flexible adjustment, and high detection accuracy to solve the above problems. Utility Model Content
[0004] To address the technical problems existing in the background art, this utility model proposes a liquid crystal glass thickness detection device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A liquid crystal glass thickness detection device, comprising a base, characterized in that it further comprises: Two first guide rails are fixedly installed on the base in a parallel and symmetrical manner; Two sets of first drive components are set up one-to-one with two first guide rails; Two first sliders, each first slider is connected to a corresponding set of first driving components and can slide along the corresponding first guide rail under the drive of the first driving components; Two columns are vertically fixedly installed on their respective first sliders; The second guide rail is horizontally fixed between the two columns, and the extension direction of the second guide rail is perpendicular to the extension direction of the first guide rail. The second drive assembly is mounted on the column; The second slider is connected to the second drive assembly and can slide along the second guide rail under the drive of the second drive assembly. The measuring probe is fixedly mounted on the second slider and oriented towards the base.
[0006] Furthermore, each of the first drive components includes a first motor and a first lead screw; the first motor is fixedly mounted on the base; the first lead screw is rotatably mounted on the base and coaxially connected to the output end of the corresponding first motor, and the first lead screw is parallel to the horizontal plane and arranged along the extension direction of the first guide rail.
[0007] Furthermore, the second drive assembly includes a second motor and a second lead screw; the second motor is fixedly mounted on one of the columns; the second lead screw is rotatably mounted between the two columns and coaxially connected to the output end of the second motor, the second lead screw is parallel to the horizontal plane and its axis is perpendicular to the axis of the first lead screw.
[0008] Furthermore, the first slider has a first threaded hole that engages with the first lead screw thread and a first through hole that slides with the first guide rail.
[0009] Furthermore, the second slider has a second threaded hole that mates with the second lead screw thread and a second through hole that slidably mates with the second guide rail.
[0010] Furthermore, a horizontally mounted mounting plate is fixedly connected to the side of the second slider facing the base; the mounting plate has a mounting groove; the top of the measuring probe has a vertically upward connecting rod, which passes through the mounting groove in sequence, and two nuts are provided on the rod body passing through the mounting groove, which are located on the upper and lower sides of the mounting plate respectively; by rotating the nuts, the vertical distance between the measuring probe and the base can be adjusted.
[0011] Furthermore, the mounting groove is an elongated groove, and the connecting rod can move along the length of the elongated groove to adjust the horizontal position of the measuring probe.
[0012] Compared with the prior art, the beneficial effects of this utility model are: Compared with the prior art, this utility model drives the first slider to move along the first guide rail through the first driving component, thereby moving the column and the second guide rail along the X direction. At the same time, the second slider is driven to move along the second guide rail (Y direction) through the second driving component, so as to achieve full coverage of the measuring probe in the XY plane, greatly improve the detection range, and adapt to the detection needs of glass substrates of different sizes. The measuring probe is set towards the base, which can accurately align with the glass substrate to be tested and ensure the validity of the detection data. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the liquid crystal glass thickness detection device proposed in this utility model; Figure 2 This utility model Figure 1Enlarged structural diagram at point A; In the figure: 1-base, 2-first drive assembly, 21-first motor, 22-first lead screw, 3-first slider, 31-column, 4-second drive assembly, 41-second motor, 42-second lead screw, 5-second slider, 6-first guide rail, 7-second guide rail, 8-mounting plate, 81-mounting groove, 9-connecting rod, 10-measuring probe. Detailed Implementation
[0014] 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.
[0015] like Figures 1-2 As shown, this embodiment provides a liquid crystal glass thickness detection device, including a base 1, characterized in that it further includes: Two first guide rails 6 are fixedly installed on the base 1 in a parallel and symmetrical manner; Two sets of first drive components 2 are set one-to-one with two first guide rails 6; Two first sliders 3, each first slider 3 is connected to a corresponding set of first driving components 2, and can slide along the corresponding first guide rail 6 under the drive of the first driving components 2; Two columns 31 are vertically fixedly installed on the corresponding first slider 3; The second guide rail 7 is horizontally fixed between the two columns 31, and the extension direction of the second guide rail 7 is perpendicular to the extension direction of the first guide rail 6. The second drive component 4 is installed on the column 31; The second slider 5 is connected to the second drive assembly 4 and can slide along the second guide rail 7 under the drive of the second drive assembly 4. The measuring probe 10 is fixedly mounted on the second slider 5 and is positioned facing the base 1.
[0016] like Figure 1 As shown, in this embodiment, the first drive assembly 2 includes a first motor 21 and a first lead screw 22; the first motor 21 is fixedly mounted on the base 1; the first lead screw 22 is rotatably mounted on the base 1 and coaxially connected to the output end of the corresponding first motor 21, and the first lead screw 22 is parallel to the horizontal plane and is arranged along the extension direction of the first guide rail 6.
[0017] Correspondingly, the first slider 3 has a first threaded hole that is threaded to engage with the first lead screw 22 and a first through hole that is slidably engaged with the first guide rail 6.
[0018] During operation, the first motor 21 drives the first lead screw 22 to rotate. Since the first slider 3 is threadedly engaged with the first lead screw 22 through the first threaded hole and slidably engaged with the first guide rail 6 through the first through hole, the rotational motion of the first lead screw 22 is converted into the linear motion of the first slider 3 along the first guide rail 6. The two first sliders 3 move synchronously, driving the column 31 and the second guide rail 7 installed between the columns 31 to move along the direction of the first guide rail 6, thereby realizing the position adjustment of the measuring probe 10 in the direction of the first guide rail 6 (denoted as the X direction).
[0019] By using the transmission method of the first motor 21 driving the first lead screw 22, and in conjunction with the guiding effect of the first guide rail 6 on the first slider 3, the measuring probe 10 can achieve high-precision and stable movement in the X direction, avoid deviation during the sliding process, and improve the accuracy of the detection position. At the same time, the threaded transmission has self-locking properties, which can ensure the stability of the position of the measuring probe 10 during the detection process, further guaranteeing the detection accuracy.
[0020] like Figure 1 As shown, in this embodiment, the second drive assembly 4 includes a second motor 41 and a second lead screw 42; the second motor 41 is fixedly mounted on one of the columns 31; the second lead screw 42 is rotatably mounted between the two columns 31 and coaxially connected to the output end of the second motor 41, and the second lead screw 42 is parallel to the horizontal plane and its axial direction is perpendicular to the axial direction of the first lead screw 22.
[0021] Correspondingly, the second slider 5 has a second threaded hole that engages with the second lead screw 42 and a second through hole that engages with the second guide rail 7.
[0022] During operation, the second motor 41 drives the second lead screw 42 to rotate. The second slider 5 is threadedly engaged with the second lead screw 42 through the second threaded hole and slidably engaged with the second guide rail 7 through the second through hole. The rotational motion of the second lead screw 42 is converted into the linear motion of the second slider 5 along the second guide rail 7 (denoted as the Y direction), thereby driving the measuring probe 10 to move in the Y direction.
[0023] Through the cooperation of the second motor 41 and the second lead screw 42, combined with the guidance of the second guide rail 7, the measuring probe 10 can move with high precision in the Y direction. The Y direction is perpendicular to the X direction, which allows the measuring probe 10 to cover any position in the XY plane, greatly improving the detection range. The high precision characteristics of the lead screw drive ensure the position control accuracy of the measuring probe 10 in the Y direction, meeting the comprehensive detection needs of glass substrates of different sizes.
[0024] like Figures 1-2As shown, in this embodiment, the second slider 5 is fixedly connected to a horizontally arranged mounting plate 8 on the side facing the base 1; the mounting plate 8 has a mounting groove 81; the top of the measuring probe 10 is provided with a vertically upward connecting rod 9, which passes through the mounting groove 81 in sequence, and two nuts are provided on the rod body passing through the mounting groove 81, which are located on the upper and lower sides of the mounting plate 8 respectively; by rotating the nuts, the vertical distance between the measuring probe 10 and the base 1 can be adjusted.
[0025] During operation, loosening the two nuts allows the connecting rod 9 to move up and down, adjusting the vertical distance between the measuring probe 10 and the base 1 (i.e., the glass substrate to be tested). After adjustment, tightening the two nuts secures the connecting rod 9 by clamping it with the mounting plate 8, thus locking the height of the measuring probe 10.
[0026] The vertical height of the measuring probe 10 can be flexibly adjusted by the cooperation of the nut and the connecting rod 9 to adapt to the detection requirements of glass substrates of different thicknesses (such as maintaining the optimal detection distance between the measuring probe 10 and the surface for glass substrates of different thicknesses), thus improving the versatility of the equipment. At the same time, the double nut clamping structure can ensure the stability of the position after the height adjustment, avoid height deviation caused by vibration during the detection process, and ensure detection accuracy.
[0027] like Figure 2 As shown, in this embodiment, the mounting groove 81 is a long strip groove, and the connecting rod 9 can move along the length of the long strip groove to adjust the horizontal position of the measuring probe 10.
[0028] During operation, after loosening the nut, the connecting rod 9 can slide along the length of the elongated mounting groove 81 to achieve horizontal fine adjustment of the measuring probe 10 in this direction (which can be consistent with the X or Y direction, or other auxiliary directions). After adjustment, tighten the nut to fix it.
[0029] The elongated mounting slot 81 provides the measuring probe 10 with additional horizontal fine-tuning freedom, which can compensate for the small positioning errors of the drive components in the X and Y directions, or adapt to the precise alignment requirements of specific detection points on the glass substrate, further improving the accuracy of the detection position; the fine-tuning operation is simple and does not require the participation of the drive motor, thus improving the operational flexibility of the equipment.
[0030] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0032] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.
Claims
1. A liquid crystal glass thickness detection device, comprising a base (1), characterized in that, Also includes: Two first guide rails (6) are fixedly installed on the base (1) in parallel and symmetrically; Two sets of first drive components (2) are set one-to-one with two first guide rails (6); Two first sliders (3), each first slider (3) is connected to a corresponding set of first driving components (2) and can slide along the corresponding first guide rail (6) under the drive of the first driving components (2); Two columns (31) are vertically fixed on the corresponding first slider (3); The second guide rail (7) is horizontally fixed between the two columns (31), and the extension direction of the second guide rail (7) is perpendicular to the extension direction of the first guide rail (6). The second drive assembly (4) is installed on the column (31); The second slider (5) is connected to the second drive assembly (4) and can slide along the second guide rail (7) under the drive of the second drive assembly (4); The measuring probe (10) is fixedly mounted on the second slider (5) and positioned facing the base (1).
2. The liquid crystal glass thickness detection device according to claim 1, characterized in that, Each of the first drive components (2) includes a first motor (21) and a first lead screw (22); the first motor (21) is fixedly mounted on the base (1); the first lead screw (22) is rotatably mounted on the base (1) and coaxially connected to the output end of the corresponding first motor (21); the first lead screw (22) is parallel to the horizontal plane and is set along the extension direction of the first guide rail (6).
3. The liquid crystal glass thickness detection device according to claim 1, characterized in that, The second drive assembly (4) includes a second motor (41) and a second lead screw (42); the second motor (41) is fixedly mounted on one of the columns (31); the second lead screw (42) is rotatably mounted between the two columns (31) and coaxially connected to the output end of the second motor (41), the second lead screw (42) is parallel to the horizontal plane and its axis is perpendicular to the axis of the first lead screw (22).
4. The liquid crystal glass thickness detection device according to claim 2, characterized in that, The first slider (3) has a first threaded hole that is threaded to the first lead screw (22) and a first through hole that is slidably engaged with the first guide rail (6).
5. The liquid crystal glass thickness detection device according to claim 3, characterized in that, The second slider (5) has a second threaded hole that is threaded to the second lead screw (42) and a second through hole that is slidably engaged with the second guide rail (7).
6. The liquid crystal glass thickness detection device according to claim 1, characterized in that, The second slider (5) is fixedly connected to a horizontally arranged mounting plate (8) on the side facing the base (1); the mounting plate (8) has a mounting groove (81); the top of the measuring probe (10) is provided with a vertically upward connecting rod (9), the connecting rod (9) passes through the mounting groove (81) in sequence, and two nuts are provided on the rod body that passes through the mounting groove (81), the two nuts are located on the upper and lower sides of the mounting plate (8); by rotating the nuts, the vertical distance between the measuring probe (10) and the base (1) can be adjusted.
7. The liquid crystal glass thickness detection device according to claim 6, characterized in that, The mounting groove (81) is a long strip groove, and the connecting rod (9) can move along the length of the long strip groove to adjust the horizontal position of the measuring probe (10).
