Fault early warning equipment for cutting processing based on TFT (Thin Film Transistor) glass substrate

Abstract

The invention discloses a fault early warning device for TFT glass substrate cutting processing, and relates to the technical field of TFT glass substrate cutting processing, the fault early warning device comprises a cutting device, a cutting head, a corrugated partition plate, a vacuum adsorption platform, a ball screw shaft and a transmission part, the cutting head, the corrugated partition plate and the vacuum adsorption platform are arranged on the cutting device, and the ball screw shaft and the transmission part are arranged in an inner cavity of the cutting device. Through the design of the inclined planes of the transverse moving block A and the transverse moving block B and the assistance of the disc, the abutting impact force can be effectively buffered, and the damage risk of parts is reduced; when the vacuum adsorption platform suddenly abuts against the pushing column of the fault early warning device due to stop delay, instantaneous impact force can be generated; due to the inclined plane design of the transverse moving block A and the transverse moving block B, rigid direct collision during abutting can be converted into inclined plane guiding type contact, and instantaneous impact can be converted into a smooth force transmission process; the synergistic effect of the two greatly weakens the direct effect of impact force on device parts, effectively reduces the problems of deformation of the pushing columns, abrasion of inclined planes of the transverse moving blocks, cracking of edges of the discs and the like, and reduces the risk of damage to the parts.

Description

Technical Field

[0001] This invention relates to the field of TFT glass substrate cutting and processing technology, specifically to a fault early warning device for TFT glass substrate cutting and processing. Background Technology

[0002] As a core component of display panel manufacturing, the positioning accuracy of TFT glass cutting equipment directly determines the processing yield of glass substrates. The core components of the equipment include a vacuum adsorption platform, an XY-axis drive module, a CCD vision positioning unit, a diamond scribing tool assembly, and an auxiliary support system. The XY-axis drive module plays a crucial role in driving the platform to achieve two-dimensional movement, requiring precise alignment with the cutting tool to ensure accurate cutting position. The core operating characteristics of this equipment are "high cycle time and high precision," meaning it completes high-frequency reciprocating movements and start-stop operations in a short period. This characteristic stems from the demands of mass production of display panels; that is, efficient processing requires rapid switching of platform postures. The ball screw in the XY-axis drive module, as a core transmission component, has its motion accuracy and stability being key factors determining the equipment's performance.

[0003] In existing technologies, the wear of ball screws is caused by a combination of factors. First, in terms of motion intensity, driven by the production cycle, the platform needs to start and stop frequently in the working area. This causes the balls and raceways to rub repeatedly in a fixed area, forming a "concentrated wear zone." Furthermore, the impact load at the moment of start and stop exacerbates the fatigue of the raceway metal, gradually producing micro-defects. Second, environmental factors: even in cleanrooms, a small amount of dust can still enter the raceway, creating a "grinding effect." At the same time, if low-volatile clean grease is not replenished in time or dries due to temperature changes, it will cause "dry friction," significantly accelerating wear. In addition, during the cutting of existing TFT glass, the platform fixes the glass substrate by vacuum adsorption. To ensure adsorption stability, the adsorption force in the glass edge area is usually higher than that in the center area. The aforementioned uneven adsorption force will be converted into an uneven load on the screw by the platform. The raceway on the side with greater force will wear more severely, destroying the pitch uniformity. Under the above circumstances and the influence of the weight of the device components (platform, balls); during the start-up and shutdown of the vacuum adsorption platform controlled by the control system, the inertia generated by the components cannot be eliminated instantly. In addition, the axial displacement of the transmission ball screw will increase due to wear caused by axial load, causing the platform to move additionally. Even if some equipment is equipped with compensation devices, it is difficult to completely offset the deviation when the wear intensifies, and a stopping delay will still occur. Stop delays can cause a chain reaction of problems in TFT glass cutting. On the one hand, the "impact-like" movement of the platform causes instantaneous fluctuations in the contact pressure between the diamond scribing tool and the glass. This not only leads to severe edge chipping (which cannot be repaired by polishing) but also creates hidden cracks inside. These cracks will propagate during subsequent high-temperature coating, causing the glass to shatter, contaminating the equipment, and resulting in prolonged downtime. On the other hand, platform overshoot caused by stop delays can cause the cutting line to deviate, and the fluctuation in force will result in serrated grooves. The deviated cutting line makes it impossible for the glass to align with the LCD module, resulting in "bright edge" defects. Serrated grooves can cause deviations in the direction of the crack, leading to air bubbles during subsequent bonding and significantly reducing bonding yield. At the same time, the scribing tool may break due to instantaneous impact, shortening its lifespan and reducing scribing quality, increasing consumable costs and downtime frequency. In summary, the current industry maintenance of XY axis drive modules mainly relies on reactive repairs or periodic maintenance. Reactive repairs are only discovered after a fault has caused downtime or batch defects, resulting in significant losses. Periodic maintenance is prone to over-maintenance (increasing costs) or under-maintenance (missing potential problems). The industry lacks a professional fault early warning system and relies on personnel experience to make judgments, which is difficult to meet the glass display panel industry's growing demand for high precision. There is an urgent need for dedicated fault early warning equipment to fill the technical gap.

[0004] Therefore, this invention proposes a fault early warning device for TFT glass substrate cutting and processing to solve the above problems. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose a fault early warning device for TFT glass substrate cutting and processing, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fault warning device for TFT glass substrate cutting and processing, comprising: a cutting device and a cutting head, a corrugated partition, a vacuum adsorption platform disposed thereon, a ball screw shaft and a transmission component inside the cutting device, and further comprising: a first component; The first component includes a fixed seat symmetrically fixedly connected to the inner wall of the cutting equipment, and a connecting groove is fixedly connected to the fixed seat. The connecting groove is provided with a transverse sliding groove, a vertical auxiliary groove and a guide auxiliary groove. A transverse sliding block A is slidably connected in the transverse sliding groove of the connecting groove. A pushing column is fixedly connected to the outer end face of the transverse sliding block A. A first spring is sleeved on the pushing column. The pushing column passes through the connecting groove laterally. One end of the first spring is fixedly connected to the inner wall of the connecting groove, and the other end is fixedly connected to the side wall of the transverse sliding block A. A guide groove is vertically formed in the connecting groove, and a disc is slidably connected in the guide groove through a shaft. A ring is fixedly connected to the outer ring surface of the disc, and the disc and the ring are located in the vertical auxiliary groove of the connecting groove. A transverse sliding block B is slidably connected in the transverse groove, and a main moving piece is fixedly connected to the end face of the transverse sliding block B away from the disk. The main moving plate is symmetrically fixedly connected with connecting rods, and a second spring is sleeved on the connecting rod. One end of the second spring is fixedly connected to the connecting groove, and the other end is fixedly connected to the main moving plate. The transverse block B is distributed as a whole in the cavity of the fixed seat and the connecting groove.

[0007] Preferably, the cutting head is fixedly connected to the cutting part mounting plate of the cutting equipment; the corrugated baffle is fixedly connected to the cutting equipment; the corrugated baffle consists of two sections, and the vacuum adsorption platform is fixedly connected between the two sections of the corrugated baffle. The ball screw shaft is fixedly connected to the inner wall of the cutting equipment, and the transmission component is fixedly connected to the bottom surface of the vacuum adsorption platform, and the transmission component is adapted to the ball screw shaft transmission.

[0008] As a preferred option, a second component is also included; The second component includes mounting slots symmetrically formed on the bottom surface of the vacuum adsorption platform, with a fitting inserted into the mounting slot, and an auxiliary sleeve fixedly connected to the protruding end of the fitting's bottom.

[0009] Preferably, a secondary movable plate is slidably connected to the inner cavity of the fixed base, and a strain gauge is fixedly connected to the side of the secondary movable plate close to the main movable plate. A third spring is fixedly connected to the side of the auxiliary moving plate away from the strain gauge, and the other end of the third spring is fixedly connected to the inner wall of the fixed base.

[0010] Preferably, an auxiliary tube is inserted and fixedly connected to the fixed base, and a conduction tube is fixedly connected to the end of the auxiliary moving piece away from the inner cavity of the fixed base; Feedback tubes are symmetrically fixedly connected to the cutting part mounting plate of the cutting equipment. A scale is provided on the outside of the feedback tubes and is fixedly connected to the cutting part mounting plate of the cutting equipment.

[0011] Preferably, the interior angle of the transverse block A near the disk is smaller than the interior angle of the transverse block B near the disk.

[0012] Preferably, the outer ring surface of the ring is a rough surface, which is used to cooperate with the inclined surface of the transverse block A.

[0013] Preferably, the mounting groove is corrugated.

[0014] Preferably, the inner diameter of the conductive tube is smaller than the inner diameter of the auxiliary tube.

[0015] Compared with the prior art, the present invention provides a fault early warning device for TFT glass substrate cutting and processing, which has the following beneficial effects: 1. The present invention, through the design of the angular difference between transverse block A and transverse block B, can bring the following advantages: Significantly amplifying the stopping delay force and improving strain gauge detection sensitivity: When the vacuum adsorption platform experiences a stopping delay due to ball screw wear, the platform's inertial impact force is indirectly transmitted to the transverse block A through the interlocking body and auxiliary sleeve, forming an initial input force F1. By designing that "the interior angle (a) of transverse block A near the disk is smaller than the interior angle (b) of transverse block B near the disk," the force can be amplified based on the mechanical relationship F2=F1*tan(b) / tan(a). When a is a smaller value and b is a larger value (e.g., a=30°, b=60°), the input force F1 can be amplified several times (3 times in this case), transforming the weak force, which was originally too small to be accurately captured by the strain gauge, into a clear and identifiable output force F2. This significantly improves the strain gauge's detection sensitivity to the stopping delay force, avoiding missed warnings due to weak force signals. Lowering the selection threshold for strain gauges reduces equipment costs and debugging complexity: Without a force amplification design, high-precision, high-sensitivity special strain gauges are required to detect the minute force during the stopping delay of the vacuum adsorption platform. These strain gauges are not only expensive to purchase but also have stringent requirements for the installation environment and signal processing circuits, increasing the overall equipment cost and debugging complexity. This design, however, amplifies the force through an angle difference. Even with a strain gauge of conventional precision, accurate detection can be achieved through the amplified force signal, reducing the performance requirements for strain gauges and lowering procurement costs. Furthermore, the installation and signal debugging processes for conventional strain gauges are more mature, simplifying the production assembly and subsequent debugging of fault warning equipment, improving equipment production efficiency, and reducing maintenance difficulty. Strengthening early warning capabilities for stop delay faults to prevent escalation of losses: Stop delay issues in vacuum adsorption platforms often manifest as weak force fluctuations in the early stages. Failure to capture these early signals in time can lead to continuous deterioration of the fault, ultimately causing serious consequences such as glass edge chipping and cutting misalignment. This design amplifies the minute force changes in the early stages of stop delay, enabling strain gauges to capture abnormal signals at the fault's nascent stage and transmit them to the early warning system via numerical feedback. Based on these clear abnormal signals, the early warning system can assess the wear level of the ball screw and the risk of stop delay in advance, issuing warnings before the fault causes substantial damage to glass cutting. This buys maintenance time for staff, preventing losses such as batch glass scrapping and equipment downtime due to escalating faults, and ensuring the continuity and yield stability of TFT glass cutting processing.

[0016] 2. The present invention, through the design of the inclined surfaces of transverse block A and transverse block B and the assistance of the disk, can bring the following advantages: Buffering impact force and reducing component damage risk: When the vacuum adsorption platform suddenly comes into contact with the push column of the fault warning device due to a stop delay, an instantaneous impact force is generated. This action can easily cause deformation, cracks, and other damage to the push column, transverse blocks, or disk. The inclined design of transverse blocks A and B can transform the "rigid head-on collision" during contact into an "inclined guide contact," allowing the impact force to be dispersed and transmitted along the inclined direction, avoiding stress concentration at a single contact point. Combined with the arc-shaped structure of the disk, it can further absorb the impact force through its own rolling, transforming the instantaneous impact into a smooth force transmission process. The synergistic effect of the two significantly reduces the direct impact force on the device components, effectively reducing problems such as push column deformation, transverse block inclined surface wear, and disk edge cracking, thus reducing the risk of component damage. The stable force transmission process ensures accurate early warning detection: If the impact force is too large upon contact and there is no buffer design, it will cause instantaneous displacement or vibration of the device components, which will not only damage the components, but also cause "spiking noise" in the force signal detected by the strain gauge, interfering with normal force value feedback and affecting the accuracy of fault early warning. The buffer design of the inclined surface of the transverse block and the disk can smooth the transmission rhythm of the impact force, avoid vibration or displacement of the components caused by instantaneous impact, and ensure that the force is stably transmitted to the strain gauge along the preset path. This makes the force value signal detected by the strain gauge more stable and accurate, effectively eliminating signal interference caused by impact vibration, ensuring the accuracy of the fault early warning device in detecting the stop delay force, and avoiding false or missed early warnings due to signal distortion.

[0017] 3. By employing a design where the inner diameter of the auxiliary tube is larger than that of the conduction tube, this invention offers the following advantages: Magnifying solution displacement and improving visual clarity: When the vacuum adsorption platform stops with a delay, indirectly causing the auxiliary moving plate to push the solution in the conduction tube, since the inner diameter of the auxiliary tube is larger than that of the conduction tube, according to the principle of fluid volume conservation (the decrease in volume of the solution in the conduction tube = the increase in volume of the solution in the auxiliary tube), the same volume of solution will produce a larger displacement in the auxiliary tube. This displacement magnification effect can transform the originally small solution movement into a significant change in the liquid level, allowing relevant personnel to clearly observe the solution displacement visually without the need for precision instruments, greatly improving the visual clarity of the warning signal. Lowering the observation threshold and adapting to multi-scenario operation and maintenance needs: In the actual operation and maintenance scenario of the TFT glass cutting workshop, staff need to monitor multiple devices simultaneously, making it difficult to conduct detailed observations of the warning devices of each device; the obvious liquid level changes brought about by the enlarged inner diameter design of the auxiliary tube lower the observation threshold, so that even illiterate children can know the warning status; and even non-staff members, such as inspection personnel conducting normal patrols in the workshop, can quickly capture the solution displacement in the auxiliary tube, adapting to the needs of parallel monitoring of multiple devices and rapid inspection in the workshop, and improving operation and maintenance efficiency; Expanding the application scenarios of early warning signals and adapting to intelligent upgrades: The amplified solution displacement is not only easier for manual observation, but also better suited to the needs of intelligent upgrades in the workshop. If photoelectric sensors (such as infrared liquid level sensors) need to be installed at the auxiliary pipes to achieve automatic early warning, the obvious liquid surface displacement allows the sensor to more easily capture the liquid level change signal, reducing the detection blind zone or response delay caused by the small displacement. At the same time, the amplified displacement signal is easier to convert into a more stable electrical signal and transmit it to the workshop's central control system, realizing centralized monitoring and data analysis of early warning information from multiple devices. This provides basic support for the intelligent and digital operation and maintenance of equipment, and further improves the management efficiency of the TFT glass cutting production line.

[0018] 4. The present invention, through the selection of the installation position of the interlocking auxiliary sleeve on the vacuum adsorption platform, can bring the following advantages: Expanding the scope of fault detection and enabling multi-dimensional anomaly investigation: Traditional designs that fix the pushing component to the ball screw transmission can only monitor the direct contact area between the transmission component and the ball screw, and can only report wear problems of the ball screw itself, and cannot cover anomalies in the connection link of the "transmission component-vacuum adsorption platform". This design uses a fitting to mount the auxiliary sleeve on the vacuum adsorption platform. When the equipment is running, the platform's motion directly reflects the operation of the entire "ball screw drive - transmission component transmission - platform connection" chain: if ball screw wear causes a delay in platform stopping, the auxiliary sleeve can detect the platform's inertial force; if the connection between the transmission component and the platform becomes loose (such as loose bolts or deformation of the connecting seat), it will cause relative displacement between the platform and the transmission component, which will also be converted into a detectable force or displacement signal through the auxiliary sleeve. The above-mentioned change in installation position enables the fault warning device to detect both ball screw wear and loose connections between the transmission component and the platform, achieving an upgrade from "single component monitoring" to "full transmission chain monitoring," expanding the scope of fault diagnosis, and avoiding subsequent equipment failures caused by undetected loose connections; Enhancing installation stability and ensuring long-term reliable operation of the early warning device: The area of ​​the vacuum adsorption platform is much larger than that of the ball screw transmission components, providing a more stable foundation for the auxiliary sleeve. The installation through the interlocking body and wave-shaped mounting groove disperses installation stress, avoiding "localized stress concentration" caused by an insufficiently small mounting surface, and reducing problems such as loosening and displacement of the auxiliary sleeve during high-frequency equipment operation. Simultaneously, the platform's high surface flatness ensures that the auxiliary sleeve remains perpendicular to the platform or at a preset angle after installation, preventing force transmission deviations caused by uneven mounting surfaces and ensuring the accuracy of the early warning device's detection signals. Compared to the small area of ​​installation on the transmission components, the stability of the platform installation significantly extends the service life of the early warning device and reduces early warning failures or detection errors caused by loose installation. Attached Figure Description

[0019] Figure 1 This is a diagram of the main body of the invention; Figure 2 This is a structural diagram of the present invention; Figure 3 The diagram shows the relevant structures of the feedback tube and scale of this invention. Figure 4 This is a side view of the cutting device after sectional cutting in this invention; Figure 5 This is a bottom-view perspective view of the cutting device in this invention after it has been cut. Figure 6 This is a three-dimensional schematic diagram of the main structure of the first component and the second component after the fixing seat and the connecting groove are cut apart in this invention; Figure 7 This is a side view of the main structure of the first and second components after the fixing base and connecting groove are cut apart in this invention; Figure 8 These are structural diagrams of the corrugated baffle, vacuum adsorption platform, transmission component, mounting groove, and interlocking body in this invention.

[0020] In the picture: 1. Cutting equipment; 2. Cutting head; 3. Corrugated baffle; 4. Vacuum adsorption platform; 5. Ball screw shaft; 6. Transmission components; First component: 701, fixed base; 702, connecting groove; 703, transverse block A; 704, pushing column; 705, first spring; 706, guide groove; 707, disc; 708, ring; 709, transverse block B; 710, main moving plate; 711, connecting rod; 712, second spring; Second component: 801, mounting slot; 802, fitting; 803, auxiliary sleeve; 804, secondary moving plate; 805, strain gauge; 806, third spring; 807, auxiliary tube; 808, conduction tube; 809, feedback tube; 810, scale. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Example Please refer to Figure 1 , Figures 3 to 7 As shown: To address the problems mentioned in the technical solutions, this application provides a fault warning device for TFT glass substrate cutting and processing, including: a cutting device 1 and a cutting head 2, a corrugated partition 3, a vacuum adsorption platform 4 disposed thereon, a ball screw shaft 5 and a transmission component 6 in the inner cavity of the cutting device 1, and also including: a first component; The first component includes a fixed seat 701 symmetrically fixedly connected to the inner wall of the cutting device 1. A connecting groove 702 is fixedly connected to the fixed seat 701. The connecting groove 702 has a transverse sliding groove, a vertical auxiliary groove, and a guide auxiliary groove. A transverse moving block A703 is slidably connected in the transverse sliding groove of the connecting groove 702. A pushing column 704 is fixedly connected to the outer end face of the transverse moving block A703. A first spring 705 is sleeved on the pushing column 704. The pushing column 704 extends transversely through the connecting groove 702. One end of the first spring 705 is fixedly connected to the inner wall of the connecting groove 702, and the other end is fixedly connected to the side wall of the transverse moving block A703. A guide groove 706 is vertically provided in the connecting groove 702. A disc 707 is slidably connected to a shaft within a guide groove 706. A ring 708 is fixedly connected to the outer ring surface of the disc 707. The disc 707 and the ring 708 are located within the vertical auxiliary groove of the connecting groove 702. A transverse sliding block B709 is slidably connected within a transverse sliding groove. A main moving plate 710 is fixedly connected to one end of the transverse sliding block B709 away from the disc 707. A connecting rod 711 is symmetrically fixedly connected to the main moving plate 710. A second spring 712 is sleeved on the connecting rod 711. One end of the second spring 712 is fixedly connected to the connecting groove 702, and the other end is fixedly connected to the main moving plate 710. The transverse sliding block B709 is distributed throughout the cavity of the fixed seat 701 and the connecting groove 702. The cutting head 2 is fixedly connected to the cutting part mounting plate of the cutting equipment 1; the corrugated baffle 3 is fixedly connected to the cutting equipment 1; the corrugated baffle 3 is composed of two sections, and the vacuum adsorption platform 4 is fixedly connected between the two sections of the corrugated baffle 3. The ball screw shaft 5 is fixedly connected to the inner wall of the cutting equipment 1, and the transmission component 6 is fixedly connected to the bottom surface of the vacuum adsorption platform 4, and the transmission component 6 is adapted to the ball screw shaft 5.

[0024] in: The corrugated baffle 3 is used to prevent glass shards generated during cutting from entering the inner cavity of the cutting equipment 1, thereby ensuring the stable operation of the components inside the cutting equipment 1.

[0025] The transmission component 6 consists of a nut and balls, which work in conjunction with the ball screw shaft 5 to move the vacuum adsorption platform 4 laterally.

[0026] The first component is used for transmitting force and lateral displacement.

[0027] The interior angle of the transverse block A703 near the disk 707 is smaller than the interior angle of the transverse block B709 near the disk 707.

[0028] The pusher column 704 and the auxiliary sleeve 803 are used together.

[0029] The guide groove 706 is used to provide guidance for the shaft of the disk 707.

[0030] The outer ring surface of ring 708 is a rough surface, which is used to cooperate with the inclined surface of transverse block A703.

[0031] The transverse block B709 has a groove on its inclined surface to provide movement space for the ring 708.

[0032] The connecting rod 711 is slidably adapted to the guide slot opened in the connecting groove 702.

[0033] A further embodiment: Please refer to Figure 2 , Figures 5 to 8 As shown: The second component includes mounting slots 801 symmetrically formed on the bottom surface of the vacuum adsorption platform 4. A fitting 802 is inserted into the mounting slot 801. An auxiliary sleeve 803 is fixedly connected to the protruding end of the fitting 802. A secondary moving plate 804 is slidably connected to the inner cavity of the fixed base 701. A strain gauge 805 is fixedly connected to the side of the secondary moving plate 804 near the main moving plate 710. A third spring 806 is fixedly connected to the side of the secondary moving plate 804 away from the strain gauge 805. The other end of the third spring 806 is fixedly connected to the inner wall of the fixed base 701. An auxiliary tube 807 is inserted and fixedly connected to the fixed base 701. A conduction tube 808 is fixedly connected to the end of the secondary moving plate 804 away from the inner cavity of the fixed base 701. Feedback tubes 809 are symmetrically fixedly connected to the cutting part mounting plate of the cutting device 1. A scale 810 is provided on the outside of the feedback tube 809 and is fixedly connected to the cutting part mounting plate of the cutting device 1.

[0034] in: The second component is used to provide feedback on force and lateral displacement.

[0035] The fitting 802 is adapted to the mounting groove 801; the mounting groove 801 is corrugated to ensure the stability of the fitting 802 during installation and the working stability of the fitting 802 pushing the push column 704 with the auxiliary sleeve 803.

[0036] The inner cavity of the fixed base 701 and the space to the right of the auxiliary moving piece 804 contain a colored feedback solution, which can be implemented as a red aqueous solution.

[0037] The strain gauge 805 is electrically connected to the main controller of the device and can be connected to the numerical display screen.

[0038] When there is no ball wear between the ball screw shaft 5 and the transmission component 6, no increase in the pitch of the ball screw shaft 5, no wear on the components, and the bolt connection between the transmission component 6 and the fixed seat 701 is in a normally tightened state; when the control system stops the transmission component 6, the transmission component 6 / fixed seat 701 will immediately stop moving without any subsequent movement. At this time, the force / feedback force on the strain gauge 805 is A. If it is in an abnormal state, that is, when the components between the ball screw shaft 5 and the transmission component 6 are worn, or when the fastening screws between the transmission component 6 and the fixed seat 701 are loose, when the control system stops the transmission component 6, the transmission component 6 / fixed seat 701 will not immediately stop displacement. At this time, the force / feedback force on the strain gauge 805 is B; B > A.

[0039] Auxiliary tube 807 and conduction tube 808 are connected; the inner diameter of conduction tube 808 is smaller than the inner diameter of auxiliary tube 807.

[0040] Feedback tube 809 is used in conjunction with scale 810; specifically, the height of the solution in feedback tube 809 can be used to indirectly determine whether there is wear on the ball screw shaft 5 and transmission component 6, which affects the change of transmission distance; and it can also provide feedback on whether the fixing bolts between transmission component 6 and fixed seat 701 are loose.

[0041] The working principle of all the content in the above embodiments is as follows: It should be noted that when the ball screw shaft 5 moves the vacuum adsorption platform 4 and the glass substrate on it on the cutting equipment 1 through the transmission component 6, the auxiliary moving plate 804 on the auxiliary sleeve 803 will also abut against the pushing column 704 on the connecting groove 702. However, at this time, the abutting force on the pushing column 704 is transmitted and the force acting on the strain gauge 805 is within a certain range, and the value of this range fluctuates little. However, when there is wear between the ball screw shaft 5 and the transmission component 6, resulting in "axial movement" or loosening between the transmission component 6 and the fixed seat 701, causing the vacuum adsorption platform 4 to experience "stop delay", the value of the above range will experience forced large fluctuations.

[0042] During use, if there is wear between the ball screw shaft 5 and the transmission component 6, resulting in "axial movement," or if there is loosening between the transmission component 6 and the fixed seat 701, causing a "stop delay" in the vacuum adsorption platform 4, the vacuum adsorption platform 4, which should have stopped moving immediately, will continue to move due to inertia. At this time, the impact force will act on the pushing column 704 through the auxiliary sleeve 803 on the fitting body 802. The pushing column 704, pushed by the impact force, will move to the right along with the transverse sliding block A703 in the transverse sliding groove of the connecting groove 702. (See attached diagram.) Figure 6 and appendix Figure 7As the transverse block A703 moves to the right, the disk 707, which is in contact with the transverse block A703 through the ring 708, will move upward along the guide groove 706 under the action of its own shaft. Furthermore, as the disc 707 moves upward, it passively moves laterally to the right by pushing the transverse block B709 along its inclined surface. At this time, the main moving plate 710, fixedly connected to the transverse block B709, pushes the auxiliary moving plate 804 on the right. During this pushing process, the strain gauge 805 located between the main moving plate 710 and the auxiliary moving plate 804 is subjected to pressure. The strain gauge 805 then displays this pressure numerically on the display screen via the main controller for the operator's understanding. If the operator observes that the value fed back by the strain gauge 805 exceeds the allowable value of the process, it indicates wear on the ball screw shaft 5 and the transmission component 6, or a loose connection between the transmission component 6 and the fixed seat 701. In this case, maintenance or replacement measures are required. Furthermore, as the auxiliary moving plate 804 is passively pushed by the main moving plate 710, the laterally moving auxiliary moving plate 804 will push the solution in the inner cavity of the fixed seat 701 on the right side. The pushed solution will then flow into the feedback pipe 809 through the auxiliary pipe 807 and the connected conduction pipe 808. During this process, the scale 810 can be used to observe the liquid level height, thereby indirectly determining whether the transmission of the ball screw shaft 5 and the transmission component 6 is normal, and whether the connection between the feedback transmission component 6 and the fixed seat 701 is loose. If the liquid level height in the feedback pipe 809 exceeds the height value allowed by the process, then maintenance and replacement of the device components are required.

[0043] Please refer to the above work process. Figures 1 to 8 .

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fault early warning device for cutting processing based on a TFT glass substrate, comprising: Cutting device (1) and its setting cutting head (2), corrugated partition (3), vacuum adsorption platform (4), and the ball screw shaft (5) in the cavity of cutting device (1), transmission part (6), characterized by further comprising: the first component; The first component includes a fixed seat (701) symmetrically fixedly connected to the inner cavity wall of the cutting device (1), a connecting groove body (702) fixedly connected to the fixed seat (701), a horizontal sliding groove, a vertical auxiliary groove and a guide auxiliary groove formed in the connecting groove body (702); a horizontal moving block A (703) is slidably connected in the horizontal sliding groove, a pushing column (704) is fixedly connected to the outer end face of the horizontal moving block A (703), a first spring (705) is sleeved on the pushing column (704), the pushing column (704) penetrates through the connecting groove body (702) horizontally, one end of the first spring (705) is fixedly connected to the inner wall of the connecting groove body (702), and the other end is fixedly connected with the side wall of the horizontal moving block A (703); A guide groove (706) is vertically formed in the connecting groove body (702), a disc (707) is slidably connected in the guide groove (706) through a shaft, and a ring (708) is fixedly connected to the outer ring surface of the disc (707); the disc (707) and the ring (708) are located in the vertical auxiliary groove of the connecting groove body (702); A horizontal moving block B (709) is slidably connected in the horizontal sliding groove, and a main moving piece (710) is fixedly connected to the end face of the horizontal moving block B (709) away from the disc (707); A connecting rod (711) is fixedly connected to the main moving piece (710), a second spring (712) is sleeved on the connecting rod (711), one end of the second spring (712) is fixedly connected to the connecting groove body (702), and the other end is fixedly connected to the main moving piece (710); the horizontal moving block B (709) is distributed in the inner cavity of the fixed seat (701) and the connecting groove body (702).

2. The fault early warning device for cutting processing of a TFT glass substrate according to claim 1, characterized in that: The cutting head (2) is fixedly connected to the cutting part mounting plate body of the cutting device (1); the corrugated partition (3) is fixedly connected to the cutting device (1); the corrugated partition (3) is composed of two sections, and the vacuum adsorption platform (4) is fixedly connected between the two sections of the corrugated partition (3); The ball screw shaft (5) is fixedly connected to the inner cavity wall of the cutting device (1), and the transmission part (6) is fixedly connected to the bottom surface of the vacuum adsorption platform (4), and the transmission part (6) is drivingly matched with the ball screw shaft (5). 3.The fault early warning device for cutting processing of a TFT glass substrate according to claim 2, characterized in that: Further comprising a second component; The second component includes a mounting groove (801) symmetrically formed in the bottom surface of the vacuum adsorption platform (4), and a fitting body (802) is inserted into the mounting groove (801); the fitting body (802) is fixedly connected with an auxiliary sleeve (803) at the protruding end of the bottom. 4.The fault early warning device for cutting processing of a TFT glass substrate according to claim 1, characterized in that: A vice moving piece (804) is slidably connected in the inner cavity of the fixed seat (701), and a strain piece (805) is fixedly connected to one side of the vice moving piece (804) close to the main moving piece (710); The third spring (806) is fixedly connected to one side of the auxiliary moving piece (804) away from the strain gauge (805), and the other end of the third spring (806) is fixedly connected to the inner cavity wall of the fixed seat (701). 5.The fault early warning device for cutting processing of a TFT glass substrate according to claim 4, characterized in that: The auxiliary pipe (807) is fixedly connected to the fixed seat (701) in a plug-in manner, and one end of the auxiliary moving piece (804) away from the inner cavity of the fixed seat (701) is fixedly connected with the conducting pipe (808). The feedback pipe (809) is fixedly connected to the cutting piece placement plate body of the cutting device (1) in a symmetrical manner, the outer side of the feedback pipe (809) is provided with a scale (810), and the scale (810) is fixedly connected to the cutting piece placement plate body of the cutting device (1). 6.The fault early warning device for cutting processing of a TFT glass substrate according to claim 1, characterized in that: The inner angle angle of the disc (707) close to the horizontal moving block A (703) is smaller than the inner angle angle of the disc (707) close to the horizontal moving block B (709). 7.The fault early warning device for cutting processing of a TFT glass substrate according to claim 1, characterized in that: The outer ring surface of the ring (708) is a rough surface, which is used in cooperation with the inclined surface of the horizontal moving block A (703). 8.The fault early warning device for cutting processing of a TFT glass substrate according to claim 3, characterized in that: The mounting groove (801) is in a corrugated shape. 9.The fault early warning device for cutting processing of a TFT glass substrate according to claim 5, characterized in that: The inner diameter of the conducting pipe (808) is smaller than the inner diameter of the auxiliary pipe (807).

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