An automobile glass edge precision polishing device
By adjusting the frame and negative pressure suction cup assembly in multiple dimensions and limiting the transmission linkage, the problem of poor adaptability of existing devices has been solved, enabling precise grinding of the edges of automotive glass, improving grinding accuracy and device stability, and reducing operation difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TAIWAN GLASS YUEDA AUTO GLASS CO LTD
- Filing Date
- 2026-06-17
- Publication Date
- 2026-08-04
AI Technical Summary
Existing automotive glass edge polishing devices are difficult to adapt to glass with different shapes and edge curvatures. Positioning and adjustment are cumbersome, and uneven polishing and burrs on the edges are easy to occur. In addition, the polishing disc is prone to shaking and scratching the glass, and the device has poor stability.
Employing a frame and negative pressure suction cup assembly, the glass edge is precisely aligned with the grinding disc through multi-dimensional adjustment of the first and second slides, combined with an electric push rod and a return spring; the transmission linkage and limit plate restrict offset, and the torsion spring achieves automatic angle reset; the negative pressure adsorption and debris collection system ensures the integrity of the glass surface.
It improves grinding precision and flatness, reduces operational difficulty, extends equipment life, ensures no damage to the glass surface, and enhances operational stability and safety.
Smart Images
Figure CN122500591A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of glass processing technology, specifically to a precision grinding device for the edges of automotive glass. Background Technology
[0002] As a key component of the car body, the edge processing precision of automotive glass directly affects assembly sealing, aesthetics, and driving safety. This is especially true for curved and irregularly shaped automotive glass, which have even stricter requirements for the accuracy and adaptability of edge grinding. Currently, automotive glass edge grinding devices on the market still have many shortcomings: traditional grinding equipment mostly adopts a fixed positioning structure, which is difficult to adapt to automotive glass of different sizes and edge shapes. Positioning and adjustment are cumbersome and can easily lead to misalignment between the glass edge and the grinding disc, resulting in uneven grinding, burrs on the edges, and other problems that affect product quality. During the grinding process, the grinding disc is prone to shaking and displacement, and lacks an effective buffer and reset structure, which can easily cause rigid collisions with the glass edge, resulting in scratches or even breakage of the glass surface. At the same time, the components wear out quickly, the device has poor operational stability, and increases the cost of use.
[0003] However, existing precision grinding devices for automotive glass edges still have some problems in use: An existing automotive glass polishing device, such as the one described in Chinese patent application number CN202511374479.X, includes a base, a three-axis control mechanism, and a drive motor. The three-axis control mechanism is located on the outside of the base and is used to control the precise movement of the drive motor in three-dimensional space. An adsorption support mechanism for adsorbing and supporting automotive glass is provided above the base. A square rod is driven and connected to the drive end of the drive motor, and a polishing disc is provided on the outside of the square rod. Several polishing discs are arranged at equal intervals on the outside of the polishing disc, and an arc-shaped polishing groove is formed on one side of the polishing disc.
[0004] Existing glass edge grinding devices can only grind the glass edge according to a preset path, making it difficult to adapt to the grinding of glass edges with different shapes and edge curvatures.
[0005] To address the aforementioned issues, an innovative design was developed based on the existing precision grinding device for automotive glass edges. Summary of the Invention
[0006] The purpose of this invention is to provide a precision grinding device for automotive glass edges, in order to solve the problem mentioned in the background art that existing glass edge grinding devices cannot grind glass edges of different shapes.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a precision grinding device for automotive glass edges, comprising a frame and a negative pressure suction cup assembly: The frame is fixed to a bracket at the rear end, and a negative pressure suction cup assembly is installed at the front end of the bracket. A collection frame is fixed to the upper end of the frame. A first rotating rod is rotatably connected to the middle of the collection frame. A transmission sleeve is connected to the upper end of the first rotating rod. A telescopic sleeve is connected inside the transmission sleeve. A telescopic rod is connected to the end of the telescopic sleeve. A first motor is connected to the lower end of the telescopic rod. A grinding disc is connected to the upper shaft end of the first motor. The lower end of the collection frame is connected to the guide bucket, and a limiting box is set inside the guide bucket. The limiting box is fixed to the inner wall of the frame. The bottom of the limiting box is connected to a second motor, and an impeller is set inside the limiting box. The shaft end of the second motor is connected to the impeller.
[0008] Preferably, the front end of the bracket is connected to a first slide, the front end of the first slide is connected to a second slide, the front end of the second slide is fixed to a transmission frame, and the lower end of the transmission frame is connected to a negative pressure suction cup assembly.
[0009] By adopting the above technical solution, the cooperation of the first and second slides can realize multi-dimensional adjustment of the negative pressure suction cup assembly in the horizontal direction, thereby driving the car glass to move flexibly and accurately adjust the relative position of the glass edge and the grinding disc, effectively improving the grinding positioning accuracy, adapting to the grinding needs of car glass of different sizes and edge shapes, and at the same time, the adjustment process is convenient and smooth, reducing the difficulty of operation.
[0010] Preferably, an electric push rod is fixed inside the transmission sleeve, the telescopic end of the electric push rod is connected to the telescopic sleeve, the telescopic sleeve is slidably connected to the transmission sleeve, and a return spring is provided inside the telescopic sleeve, with both ends of the return spring connected to the inner wall of the telescopic sleeve and the telescopic rod, respectively.
[0011] Using the above technical solution, the electric push rod can precisely drive the telescopic sleeve to slide along the transmission sleeve, realizing the controllable adjustment of the position of the grinding disc from the edge of the glass, meeting the grinding needs of the edges of automotive glass of different sizes; the return spring can buffer and reset the telescopic rod, avoiding rigid collision between the grinding disc and the edge of the glass and damage to the glass surface, while compensating for displacement during the grinding process, ensuring that it can adapt to the curved edge of the automotive glass, ensuring uniform grinding force, and improving the flatness of the ground surface.
[0012] Preferably, the two ends of the telescopic rod are rotatably connected to the transmission connecting rod, and the upper end of the transmission connecting rod is rotatably connected to the limiting plate, the limiting plate having an "I" shaped cross-section.
[0013] By adopting the above technical solution, the cooperation between the transmission link and the limiting plate can limit and guide the movement trajectory of the telescopic rod, preventing the telescopic rod from deviating or shaking during the grinding process, ensuring that the grinding plate always fits the preset grinding path on the edge of the glass, and improving the grinding accuracy; the "I"-shaped limiting plate design can enable the limiting plate to move smoothly on the edge of the car glass, maintaining the stability of the rotational movement of the grinding structure.
[0014] Preferably, a torsion spring is sleeved outside the connecting shaft between the transmission link and the telescopic rod, and the torsion spring, the transmission link, and the telescopic rod form a rotational reset structure.
[0015] Using the above technical solution, the torsion spring can drive the transmission link and the telescopic rod to achieve rotational reset. When the grinding disc shifts due to the change in the curvature of the glass edge, the reset force of the torsion spring can push the transmission link to reset, thereby driving the telescopic rod to adjust the angle, so that the grinding disc always fits tightly against the curved surface of the glass edge, which is suitable for grinding curved and irregular glass edges, while reducing the frequency of manual adjustment and improving grinding efficiency and consistency.
[0016] Preferably, the upper end of the first rotating rod is rotatably connected to a bracket, the bracket has an "X" shape design, and rubber pads are connected to the upper corners of the bracket.
[0017] By adopting the above technical solution, the "X"-shaped bracket can provide stable support for the transmission sleeve, distribute the force on the transmission sleeve, prevent the transmission sleeve from shaking during the rotation of the first rotating rod, and ensure the stability of the grinding disc operation; the rubber pads at the corners of the bracket can effectively buffer the contact impact force between the bracket and the transmission sleeve, reduce component wear, extend the service life of the device, and at the same time avoid abnormal noise caused by rigid contact.
[0018] Preferably, the lower end of the limiting box has an air outlet, which is located on the outer edge of the impeller and below the guide bucket. The middle outer wall of the limiting box has an air inlet.
[0019] Using the above technical solution, the second motor drives the impeller to rotate, which creates a negative pressure inside the limit box. Glass shards generated during the grinding process are sucked in through the air inlet and then collected through the guide bucket, achieving rapid collection of shards and preventing them from scattering and contaminating the device, scratching the glass surface, or endangering the health of operators. The air outlet is located on the outer edge of the impeller and below the guide bucket, which can form a stable airflow circulation, improve the efficiency of shard suction, and at the same time prevent shards from clogging the internal channels of the limit box.
[0020] Preferably, a filter screen is provided inside the air inlet, and the air inlet is located inside the guide bucket.
[0021] By adopting the above technical solution, the filter screen inside the air inlet can filter the glass shards that are sucked in, preventing fine shards from entering the limit box and coming into contact with the impeller and the second motor, avoiding wear and jamming of components, ensuring the normal operation of the motor and impeller, and extending the service life of the device.
[0022] Preferably, a partition is provided at the upper end of the limiting box, the partition seals the upper part of the limiting box, the shaft end of the second motor passes through the partition, the shaft end of the second motor is connected to the driving gear, the side of the partition is rotatably connected to the first gear, the first gear meshes with the driving gear, the upper end of the first gear is fixed to the second gear, the lower end of the first rotating rod is connected to the driven gear, and the lower end of the driven gear meshes with the second gear.
[0023] By adopting the above technical solution, through the meshing transmission of the driving gear, the first gear, the second gear and the driven gear, a single second motor can simultaneously drive the impeller and the first rotating rod to rotate, realizing the synchronous operation of debris collection and grinding disc rotation. This simplifies the device's transmission structure, reduces the number of driving components such as motors, and lowers the device's manufacturing cost and energy consumption. The sealing design of the partition plate on the upper part of the limit box can prevent sucked-in debris from entering the gear transmission mechanism, avoiding gear wear and jamming, ensuring transmission stability, and improving the sealing of debris collection to reduce debris leakage.
[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: This automotive glass edge precision grinding device can flexibly adjust the position of the negative pressure suction cup assembly and the automotive glass through multi-dimensional adjustment of the first and second slides, facilitating rapid loading and unloading of automotive glass. The electric push rod drives the telescopic sleeve to adjust the position of the grinding disc, the return spring compensates for grinding displacement and adapts to the curved edge of the glass, the transmission link and the limiting plate limit the offset of the telescopic rod, and the torsion spring realizes automatic angle reset. The multi-structure cooperation can not only adapt to the grinding needs of automotive glass of different sizes and edge shapes, but also ensure that the grinding disc always fits the edge of the automotive glass, ensuring uniform grinding force, improving the flatness and precision of glass edge grinding, and reducing the difficulty of manual adjustment.
[0025] 1. The "X"-shaped bracket provides stable support for the transmission sleeve, distributing the force and preventing swaying. The rubber pads buffer the contact impact, reducing component wear and abnormal noise. The gear meshing transmission structure uses a single second motor to synchronously drive the impeller and the first rotating rod, simplifying the transmission structure, reducing the number of drive components, and lowering manufacturing costs and energy consumption. The partition sealing design prevents debris from entering the gear mechanism, avoiding component jamming and wear. Torsion springs, return springs, and other reset structures reduce rigid collisions of components, comprehensively ensuring the long-term stable operation of the device and extending its overall service life. 2. The second motor drives the impeller to create negative pressure in the limit box, drawing in debris through the air inlet and collecting it through the guide bucket. The air outlet creates a stable airflow circulation to improve collection efficiency and prevent debris from scattering and contaminating the device, scratching the glass, or endangering the health of operators. The filter screen inside the air inlet can filter out fine debris, preventing it from entering the limit box and damaging the motor and impeller. This ensures the normal operation of core components and facilitates later filter maintenance, taking into account operational safety, device protection, and ease of maintenance. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the structure of the first and second slides of the present invention; Figure 4 This is a schematic diagram of the collection frame and bracket structure of the present invention; Figure 5 This is a schematic diagram of the limiting box and guide bucket structure of the present invention; Figure 6 This is a schematic diagram of the limiting box and air outlet structure of the present invention; Figure 7 This is a schematic diagram of the second motor and impeller structure of the present invention; Figure 8 This is a schematic diagram of the transmission sleeve and bracket structure of the present invention; Figure 9 This is a schematic diagram of the transmission sleeve and electric push rod structure of the present invention; Figure 10 This is a schematic diagram of the first motor and grinding disc structure of the present invention.
[0027] In the diagram: 1. Frame; 2. Support; 3. First slide; 4. Second slide; 5. Transmission frame; 6. Negative pressure suction cup assembly; 7. Collection frame; 8. First rotating rod; 9. Transmission sleeve; 10. Telescopic sleeve; 11. Telescopic rod; 12. First motor; 13. Grinding disc; 14. Electric push rod; 15. Return spring; 16. Transmission connecting rod; 17. Limiting plate; 18. Torsion spring; 19. Bracket; 20. Limiting box; 21. Guide bucket; 22. Second motor; 23. Impeller; 24. Air outlet; 25. Air inlet; 26. Driving gear; 27. First gear; 28. Second gear; 29. Driven gear. Detailed Implementation
[0028] 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.
[0029] Please see Figure 1-10This invention provides a technical solution: a precision grinding device for the edge of automotive glass, comprising a frame 1 and a negative pressure suction cup assembly 6. A bracket 2 is fixed to the rear end of the frame 1, and the negative pressure suction cup assembly 6 is installed at the front end of the bracket 2. A first slide 3 is connected to the front end of the bracket 2, and a second slide 4 is connected to the front end of the first slide 3. A transmission frame 5 is fixed to the front end of the second slide 4, and the lower end of the transmission frame 5 is connected to the negative pressure suction cup assembly 6. The bracket 2 adopts an integrated welded structure and is fixedly connected to the frame 1. The connection points are reinforced to prevent loosening or shaking during operation. The front end of the bracket 2 is used to install the negative pressure suction cup assembly 6. The first slide 3 is first fixedly connected to the front end of the bracket 2. The first slide 3 adopts a linear slide structure, enabling smooth sliding along the horizontal longitudinal direction. The front end of the first slide 3 is further connected to the second slide 4, which is arranged perpendicularly to the first slide 3, enabling sliding along the horizontal transverse direction. Through the cooperation of the first slide 3 and the second slide 4, a multi-dimensional adjustment mechanism in the horizontal direction is formed. A transmission frame 5 is fixed to the front end of the second slide 4. The transmission frame 5 adopts an L-shaped structure design, and its lower end is fixedly connected to the negative pressure suction cup assembly 6. The function of the transmission frame 5 is to accurately transmit the adjustment displacement of the second slide 4 to the negative pressure suction cup assembly 6, and at the same time, to provide stable support for the negative pressure suction cup assembly 6, preventing the negative pressure suction cup assembly 6 from tilting or shaking when carrying the automotive glass. The negative pressure suction cup assembly 6 preferably adopts a multi-group vacuum suction cup array arrangement, which can be flexibly adapted according to the size of the automotive glass. It firmly fixes the automotive glass through the principle of negative pressure adsorption. The adsorption process is stable and damage-free, which can not only ensure that the glass does not shift during the polishing process, but also avoid defects such as indentations and scratches on the glass surface.
[0030] When loading automotive glass, the glass to be polished is first placed on the negative pressure suction cup assembly 6. Alternatively, a loading conveyor belt and a unloading conveyor belt can be set on both sides of the equipment as needed. The negative pressure adsorption system is activated to generate a stable negative pressure in the negative pressure suction cup assembly 6, which firmly adsorbs and fixes the automotive glass, ensuring that the glass surface is flat and without looseness. Then, according to the size, edge shape and polishing requirements of the automotive glass, the sliding displacement of the first slide 3 and the second slide 4 is adjusted to precisely adjust the automotive glass to the center position inside the collection frame 7.
[0031] A collection frame 7 is fixed at the upper end of the frame 1. A first rotating rod 8 is rotatably connected to the middle of the collection frame 7. A transmission sleeve 9 is connected to the upper end of the first rotating rod 8. A telescopic sleeve 10 is connected inside the transmission sleeve 9. A telescopic rod 11 is connected to the end of the telescopic sleeve 10. A first motor 12 is connected to the lower end of the telescopic rod 11. A grinding disc 13 is connected to the upper shaft end of the first motor 12. An electric push rod 14 is fixed inside the transmission sleeve 9. The telescopic end of the electric push rod 14 is connected to the telescopic sleeve 10. The telescopic sleeve 10 is slidably connected to the transmission sleeve 9. A return spring 15 is set inside the telescopic sleeve 10. The two ends of the return spring 15 are connected to the inner wall of the telescopic sleeve 10 and the telescopic rod 11, respectively. A first rotating rod 8 is rotatably connected to the middle of the collection frame 7. The first rotating rod 8 is made of high-strength alloy steel. Its lower end penetrates the middle wall of the collection frame 7 and connects to the subsequent transmission mechanism. Its upper end extends to the top of the collection frame 7 for mounting grinding-related components. A sealed bearing is provided at the connection between the first rotating rod 8 and the collection frame 7. This ensures that the first rotating rod 8 can rotate flexibly and smoothly, prevents debris inside the collection frame 7 from leaking through the connection gap, and reduces frictional wear during rotation, extending the service life of the components. A transmission sleeve 9 is fixedly connected to the upper end of the first rotating rod 8. The transmission sleeve 9 is a hollow tubular structure, and its interior is connected to the upper end of the first rotating rod 8. The transmission sleeve 9 and the first rotating rod 8 are fixed by a key connection, ensuring that the rotation of the first rotating rod 8 can synchronously drive the rotation of the transmission sleeve 9, thereby driving the rotation of the subsequent grinding components to realize the grinding operation of the glass edge. The transmission sleeve 9 is internally connected to a telescopic sleeve 10, which can slide along the inner wall of the transmission sleeve 9. The outer wall of the telescopic sleeve 10 is tightly fitted with the inner wall of the transmission sleeve 9 to avoid shaking or excessive gaps. An electric push rod 14 is fixedly installed inside the transmission sleeve 9. The fixed end of the electric push rod 14 is fixedly connected to the top of the inner wall of the transmission sleeve 9, and the telescopic end extends downward and is fixedly connected to the top of the telescopic sleeve 10. The electric push rod 14 can precisely control the telescopic displacement, thereby driving the telescopic sleeve 10 to slide along the inner wall of the transmission sleeve 9 to achieve the position adjustment of the grinding disc 13. The telescopic sleeve 10 is slidably connected to a telescopic rod 11 at its end. The telescopic rod 11 can slide back and forth along the inner wall of the telescopic sleeve 10. A return spring 15 is also provided inside the telescopic sleeve 10. The two ends of the return spring 15 are fixedly connected to the end of the inner wall of the telescopic sleeve 10 and the top of the telescopic rod 11, respectively. When the return spring 15 is in its natural state, it can push the telescopic rod 11 to extend outward, so that the grinding disc 13 can fit tightly against the edge of the car glass. When the edge of the glass changes its curvature or has a slight protrusion during the grinding process, the telescopic rod 11 can compress the return spring 15 and retract inward, which plays a buffering role and avoids rigid collision between the grinding disc 13 and the edge of the glass. At the same time, the elastic force of the return spring 15 can always push the grinding disc 13 to fit against the edge of the glass, ensuring the uniformity of the grinding. After the car glass is adjusted to the preset polishing position via the first slide 3 and the second slide 4, the electric push rod 14 is retracted, causing the polishing disc 13 to contact the edge of the glass. Then, the first motor 12 is started, driving the polishing disc 13 to rotate at high speed. At the same time, the first rotating rod 8 drives the transmission sleeve 9 and the entire polishing assembly to rotate, so that the polishing disc 13 moves at a uniform speed along the edge of the car glass, achieving all-round polishing. During the polishing process, the return spring 15 always pushes the telescopic rod 11, so that the polishing disc 13 fits tightly against the edge of the glass, adapting to the curvature changes of the glass edge, and avoiding problems such as incomplete polishing or missed polishing.
[0032] The telescopic rod 11 is rotatably connected to the transmission connecting rod 16 at both ends. The upper end of the transmission connecting rod 16 is rotatably connected to the limiting plate 17, which has an "I"-shaped cross-section. A torsion spring 18 is sleeved on the outside of the connecting shaft between the transmission connecting rod 16 and the telescopic rod 11. The torsion spring 18, the transmission connecting rod 16, and the telescopic rod 11 form a rotational reset structure. The upper end of the first rotating rod 8 is rotatably connected to the bracket 19, which has an "X"-shaped design. Rubber pads are connected to the upper ends of the corners of the bracket 19. The "X"-shaped structure of the bracket 19 can maximize the dispersion of the force on the transmission sleeve 9, providing stable support for the transmission sleeve 9 and preventing the car glass from shaking or tilting during polishing, thus improving polishing accuracy. Rubber pads are connected to the upper ends of the four corners of the bracket 19. The rubber pads are made of flexible and wear-resistant rubber, which can effectively buffer the contact impact between the bracket 19 and the transmission sleeve 9, reduce frictional wear, extend the service life of the components, and avoid abnormal noise caused by rigid contact, thus improving the quietness of the device operation. A rotating bearing is provided at the connection between the bracket 19 and the first rotating rod 8 to ensure that the bracket 19 remains in a fixed supporting state when the first rotating rod 8 rotates, cooperating with the negative pressure suction cup assembly 6 to maintain the stability of the automotive glass. The torsion spring 18 drives the transmission linkage 16 to rotate, causing the limiting plate 17 to contact the edge of the glass. The I-shaped limiting plate 17 can keep the relative height between the grinding disc 13 and the glass unchanged, improving the grinding accuracy and grinding quality.
[0033] The lower end of the collection frame 7 is connected to the guide bucket 21. A limiting box 20 is installed inside the guide bucket 21, and the limiting box 20 is fixed to the inner wall of the frame 1. A second motor 22 is connected to the bottom of the limiting box 20, and an impeller 23 is installed inside the limiting box 20. The shaft end of the second motor 22 is connected to the impeller 23. An air outlet 24 is opened at the lower end of the limiting box 20, located on the outer edge of the impeller 23 and below the guide bucket 21. An air inlet 25 is opened on the outer wall of the middle part of the limiting box 20. A filter screen is installed inside the air inlet 25, which is located inside the guide bucket 21. A guide hopper 21 is fixedly connected to the lower end of the collection frame 7. The guide hopper 21 and the collection frame 7 adopt an integral welded structure, and the partition array between the guide hopper 21 and the collection frame 7 has through holes to ensure that the glass fragments collected in the collection frame 7 can fall smoothly into the guide hopper 21. The guide hopper 21 adopts a funnel-shaped structure that is wider at the top and narrower at the bottom. The material is the same as that of the collection frame 7, and it has good wear resistance and sealing performance. Its function is to gather and guide the fragments collected by the collection frame 7, so as to facilitate subsequent centralized collection and processing.
[0034] A limiting box 20 is fixedly installed inside the guide bucket 21. The limiting box 20 adopts a sealed box structure, and its outer wall is fixedly connected to the inner wall of the frame 1 by bolts. The connection is firm and can effectively withstand the vibration during the operation of the device, preventing loosening or displacement. A second motor 22 is fixedly connected to the bottom of the limiting box 20. The second motor 22 is a waterproof and dustproof motor, which is suitable for the working environment during the debris collection process, preventing glass fragments and dust from entering the motor and ensuring the normal operation of the motor. An impeller 23 is installed inside the limiting box 20. The impeller 23 is made of high-strength plastic material, which is lightweight and wear-resistant. The output shaft of the second motor 22 passes through the bottom wall of the limiting box 20 and is fixedly connected to the impeller 23, ensuring that the second motor 22 can synchronously drive the impeller 23 to rotate at high speed after starting. During the polishing process, glass shards fall into the collection frame 7. The second motor 22 drives the impeller 23 to rotate at high speed, creating a negative pressure inside the limit box 20. The shards are sucked into the guide bucket 21 through the air inlet 25. The filter screen filters the shards, and the filtered airflow is discharged through the air outlet 24. The shards remain on the surface of the filter screen and inside the guide bucket 21, achieving efficient collection of shards.
[0035] A partition is installed at the upper end of the limiting box 20, sealing the upper part of the limiting box 20. The shaft end of the second motor 22 passes through the partition and is connected to the driving gear 26. The side of the partition is rotatably connected to the first gear 27, which meshes with the driving gear 26. The upper end of the first gear 27 is fixed to the second gear 28. The lower end of the first rotating rod 8 is connected to the driven gear 29, which meshes with the second gear 28. The output shaft end of the second motor 22 passes through the partition and extends above it. A sealing ring is installed at the penetration point to ensure that the shaft end of the second motor 22 can rotate flexibly and to further enhance the sealing effect of the partition, preventing debris and airflow leakage. The driving gear 26 is fixedly connected to the shaft end of the second motor 22 above the partition. The driving gear 26 is made of high-strength gear steel, and the tooth surface is hardened, resulting in high wear resistance and high transmission accuracy. The side of the partition is rotatably connected to a first gear 27 via a rotating bearing. The first gear 27 meshes with the driving gear 26, and the size of the first gear 27 is adapted to the driving gear 26 to ensure smooth transmission without jamming. The upper end of the first gear 27 is fixedly connected to a second gear 28. The second gear 28 and the first gear 27 adopt an integrated structure design and rotate synchronously. The tooth profile of the second gear 28 is adapted to the driven gear 29 at the lower end of the first rotating rod 8, which can facilitate the device to collect glass fragments while simultaneously driving the rotation of the grinding structure.
[0036] The contents not described in detail in this specification are prior art known to those skilled in the art. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A precision grinding device for automotive glass edges, comprising a frame (1) and a negative pressure suction cup assembly (6), characterized in that: The frame (1) is fixed to the rear end of the bracket (2), and the bracket (2) is installed with a negative pressure suction cup assembly (6). The frame (1) is fixed to the upper end of the collection frame (7). The middle part of the collection frame (7) is rotatably connected to the first rotating rod (8). The upper end of the first rotating rod (8) is connected to the transmission sleeve (9). The transmission sleeve (9) is connected to the telescopic sleeve (10). The end of the telescopic sleeve (10) is connected to the telescopic rod (11). The lower end of the telescopic rod (11) is connected to the first motor (12). The upper shaft end of the first motor (12) is connected to the grinding disc (13). The lower end of the collection box (7) is connected to the guide bucket (21), and the guide bucket (21) is equipped with a limiting box (20). The limiting box (20) is fixed to the inner wall of the frame (1). The bottom of the limiting box (20) is connected to the second motor (22), and the limiting box (20) is equipped with an impeller (23). The shaft end of the second motor (22) is connected to the impeller (23).
2. The precision grinding device for automotive glass edges according to claim 1, characterized in that: The front end of the bracket (2) is connected to the first slide (3), the front end of the first slide (3) is connected to the second slide (4), the front end of the second slide (4) is fixed to the transmission frame (5), and the lower end of the transmission frame (5) is connected to the negative pressure suction cup assembly (6).
3. The precision grinding device for automotive glass edges according to claim 1, characterized in that: An electric push rod (14) is fixed inside the transmission sleeve (9). The telescopic end of the electric push rod (14) is connected to the telescopic sleeve (10). The telescopic sleeve (10) is slidably connected to the transmission sleeve (9). A reset spring (15) is provided inside the telescopic sleeve (10). The two ends of the reset spring (15) are connected to the inner wall of the telescopic sleeve (10) and the telescopic rod (11) respectively.
4. The precision grinding device for automotive glass edges according to claim 1, characterized in that: The telescopic rod (11) is rotatably connected to the transmission link (16) at both ends, and the upper end of the transmission link (16) is rotatably connected to the limiting plate (17). The limiting plate (17) has an "I" shaped cross section.
5. The precision grinding device for automotive glass edges according to claim 4, characterized in that: A torsion spring (18) is sleeved on the outside of the connecting shaft between the transmission link (16) and the telescopic rod (11). The torsion spring (18), the transmission link (16), and the telescopic rod (11) form a rotational reset structure.
6. The precision grinding device for automotive glass edges according to claim 1, characterized in that: The upper end of the first rotating rod (8) is rotatably connected to the bracket (19), which is an "X" shaped design. Rubber pads are connected to the upper corners of the bracket (19).
7. The precision grinding device for automotive glass edges according to claim 1, characterized in that: The lower end of the limiting box (20) has an air outlet (24), which is located on the outer edge of the impeller (23). The air outlet (24) is located below the guide bucket (21), and the middle outer wall of the limiting box (20) has an air inlet (25).
8. The precision grinding device for automotive glass edges according to claim 7, characterized in that: The air inlet (25) is provided with a filter screen inside, and the air inlet (25) is located inside the guide bucket (21).
9. The precision grinding device for automotive glass edges according to claim 1, characterized in that: The upper end of the limiting box (20) is provided with a partition plate, which seals the upper part of the limiting box (20). The shaft end of the second motor (22) passes through the partition plate, and the shaft end of the second motor (22) is connected to the driving gear (26). The side of the partition plate is rotatably connected to the first gear (27), which meshes with the driving gear (26). The upper end of the first gear (27) is fixed with the second gear (28), and the lower end of the first rotating rod (8) is connected to the driven gear (29). The lower end of the driven gear (29) meshes with the second gear (28).