A handling and assembly apparatus for a cab front glass

Abstract

The present application relates to the technical field of multi-functional carrier, and discloses a carrying and assembling equipment for cab front glass, which comprises an AGV frame, a vehicle box and a multi-posture linkage mechanism arranged on the AGV frame and used for switching the state of the front windshield glass between a horizontal state and a vertical state, a suction cup and a suction pump further included on the multi-posture linkage mechanism, the suction cup being fixed on the middle cylinder through a supporting assembly, the supporting assembly comprising a horizontal-state protection assembly, the horizontal-state protection assembly comprising a horizontal-state fixing seat and a horizontal-state sliding seat, one end of the horizontal-state sliding seat being slidably arranged in the horizontal-state fixing seat and the other end being fixedly connected with the suction cup in side surface, the horizontal-state fixing seat being fixedly installed on a front mechanism, and the inner cavity of the front mechanism being in communication with the inner cavity of the middle cylinder. The communication state between the main cavity in the middle cylinder and the auxiliary cavity in the suction cup is switched through the sliding cooperation between the horizontal-state fixing seat and the horizontal-state sliding seat, so that the front windshield glass is prevented from falling off due to the sealing leakage in the middle cylinder.

Description

Technical Field

[0001] This invention relates to the field of multi-functional transport vehicle technology, specifically to a transport and assembly device for the front windshield of a driver's cab. Background Technology

[0002] In the final assembly and after-sales maintenance of automobiles, the handling and assembly of the windshield is one of the key processes. As a large, heavy, and easily damaged irregularly shaped component, the safety of its transport and the accuracy of its installation directly affect production efficiency and assembly quality. Currently, the industry mainly uses two types of operation modes: one is the traditional method relying on manual labor with simple tools, and the other is a semi-automated method using specialized machinery, but both have significant technical shortcomings. The efficiency of handling and installation is low: Existing equipment generally suffers from limited functionality. Tools such as manual suction cups and glass suction holders are only suitable for short-distance handling. Although they can grip glass through vacuum suction, they lack posture adjustment capabilities. During transportation, the glass must be placed horizontally to avoid collisions, but during installation, it must be switched to a vertical or tilted position. This process requires multiple manual transfers or tool changes, which not only increases labor intensity but also makes it easier for the glass edges to be damaged due to operational errors. Even when using industrial-grade tools such as electric suction cups, forklifts and other equipment are still needed for assistance in handling. There is a significant gap in the coordination between the two types of equipment, especially in high-intensity operation scenarios such as commercial vehicle assembly lines, where the efficiency bottleneck is particularly prominent.

[0003] Vacuum adsorption systems pose safety hazards: The core of suction cup handling equipment relies on vacuum sealing performance, but existing technologies generally lack effective leakage prevention mechanisms. On one hand, the air path between the pump and the suction cup is often normally open. If the seal leaks due to aging, installation misalignment, or pressure fluctuations, it will directly lead to a sharp drop in adsorption force, increasing the risk of glass detachment. On the other hand, during transportation, glass is affected by road bumps or vibrations, causing slight displacement between the suction cup and the glass surface, further increasing the probability of seal failure. If some glass lifting devices rely solely on a single suction cup without secondary protection mechanisms, a malfunction in the air path could cause glass breakage, resulting in economic losses for production. Installation positioning accuracy is difficult to control: The assembly quality of the windshield requires extremely high precision in vehicle dimensions, especially in the commercial vehicle sector. Misalignment between the front bulkhead welded assembly and the roof can easily lead to deviations in the mounting hole positions, necessitating millimeter-level fine-tuning of the glass position. Existing equipment cannot balance adsorption stability and adjustment flexibility: While rigidly connected suction cup components ensure firm adsorption, they cannot achieve fine-tuning during installation; adjustable structures often sacrifice sealing reliability, and the adjustment process requires repeated release and repositioning, not only extending operation time but also potentially damaging the sealant coating on the glass surface due to repeated operations. In some scenarios, even using a rubber mallet to tap and assist installation further increases the risk of glass breakage.

[0004] High reliance on manual labor and poor quality stability: Even in highly automated production lines, windshield installation still requires manual intervention for positioning. Due to the lack of integrated posture adjustment and precise positioning mechanisms, operators need to manually straighten and align the glass during hoisting. Individual differences in manual operation can easily lead to fluctuations in assembly quality—problems such as hole alignment deviations and uneven sealant application occur frequently, affecting the waterproof performance of the cab and potentially causing production delays due to rework.

[0005] To address the aforementioned shortcomings, the industry urgently needs a device capable of integrating "handling, posture switching, and installation" into a single operation. Its core requirements include: stepless switching capability between horizontal and vertical postures to achieve seamless integration of transportation and installation; establishing a switchable air circuit sealing mechanism to prevent leakage risks during non-operational states; and providing a positioning adjustment structure that combines stability and flexibility to meet the fine-tuning requirements during installation. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a handling and assembly device for a driver's cab windshield. It features stepless switching between horizontal and vertical orientations, enabling seamless integration of transportation and installation. It establishes a switchable air circuit sealing mechanism to prevent leakage risks during non-operational states. Furthermore, it provides a positioning adjustment structure that combines stability and flexibility, meeting the needs of fine-tuning during installation. This invention solves the problems of low efficiency in handling and installation integration, lack of effective leakage protection mechanisms in vacuum adsorption systems leading to safety hazards, difficulty in controlling installation positioning accuracy and the inability to balance adsorption stability and adjustment flexibility, and high reliance on manual labor resulting in poor assembly quality stability in current driver's cab windshield handling and assembly technologies.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A handling and assembly device for a windshield of a driver's cab includes a frame, on which a cargo box and a multi-position linkage mechanism are mounted. The multi-position linkage mechanism includes a horizontal rotation mechanism, a lifting mechanism, a longitudinal rotation mechanism, and a longitudinal sliding mechanism for switching the windshield between a horizontal and a vertical position. The multi-position linkage mechanism also includes a suction cup for adsorbing the windshield and an air pump for providing suction. The suction cup is fixed to a central cylinder by a support assembly. The inner cavity of the central cylinder is connected to the air pump's intake port via a flexible hose. The component includes a horizontal protective assembly, which comprises a horizontal fixed base and a horizontal sliding base. One end of the horizontal sliding base slides within the horizontal fixed base, and the other end is fixedly connected to a suction cup. The horizontal fixed base is fixedly mounted on a front mechanism, and the inner cavity of the front mechanism communicates with the inner cavity of the middle cylinder. When the windshield is in a vertical position, when the horizontal sliding base slides to its lowest position, the inner cavity of the horizontal sliding base separates from the inner cavity of the middle cylinder. When the horizontal sliding base is raised, the inner cavity of the horizontal sliding base communicates with the inner cavity of the middle cylinder.

[0008] Preferably, the surface of the horizontal fixed base mounted on the front mechanism is provided with an outer window, and the front mechanism is provided with a main air hole corresponding to the position of the outer window. The surface of the horizontal sliding base that fits against the outer window is provided with an inner window. One end of the horizontal sliding base inside the horizontal fixed base is connected to the interior of the horizontal fixed base, and the other end of the horizontal sliding base outside the horizontal fixed base is connected to the suction cup. When the horizontal sliding base slides to the bottom of the horizontal fixed base, it covers the main air hole, thereby separating the inner cavity of the horizontal sliding base from the inner cavity of the front mechanism. When the horizontal sliding base slides upward, the inner cavity of the front mechanism is connected to the inner cavity of the horizontal sliding base through the main air hole, the outer window, and the inner window.

[0009] Preferably, a one-way vent is provided on the front mechanism at the position corresponding to the outer window. A one-way valve is provided inside the one-way vent. The one-way valve includes a plug that is slidably disposed in the one-way vent. The plug is connected to a valve spring. A side channel is provided on the inner wall of the one-way vent. When the air pressure in the inner cavity of the front mechanism is the same as the air pressure in the horizontal sliding seat, the plug slides to the middle position in the one-way vent. At this time, the one-way vent is separated into the inner and outer parts. When the air pressure in the inner cavity of the front mechanism is lower than the horizontal... When the air pressure inside the horizontal sliding seat is lower than that inside the horizontal sliding seat, the plug slides inward to a position near the front mechanism within the one-way vent. At this time, the inner cavity of the front mechanism is connected to the inner cavity of the horizontal sliding seat through the side channel for evacuation. When the air pressure inside the front mechanism is higher than that inside the horizontal sliding seat, the plug slides outward to a position near the horizontal sliding seat within the one-way vent. At this time, the plug protrudes outward, and the bottom of the plug rests against the bottom edge of the inner window to prevent the horizontal sliding seat from rising when the front mechanism leaks air.

[0010] Preferably, the support assembly further includes a vertical protection assembly, which includes a vertical fixed seat and a vertical sliding seat. One end of the vertical sliding seat slides within the vertical fixed seat, and the other end is fixedly connected to the horizontal fixed seat. The vertical fixed seat is fixedly installed on the middle cylinder. When the windshield is horizontal, when the vertical sliding seat slides to the bottom, the cavity inside the vertical sliding seat separates from the cavity inside the middle cylinder. When the vertical sliding seat is raised, the cavity inside the vertical sliding seat connects with the cavity inside the middle cylinder.

[0011] Preferably, the vehicle body is equipped with a counterweight and a control box. The control box is electrically connected to the controllers of the horizontal rotation mechanism and the lifting mechanism in the multi-posture linkage mechanism, and is used to coordinate the control of the actions of each mechanism.

[0012] Preferably, the multi-posture linkage mechanism includes a rotating seat fixed on the vehicle frame, a rotating platform rotatably connected to the rotating seat, a lifting seat and an air pump mounted on the rotating platform, a lifting platform slidably connected to the lifting seat, a middle cylinder slidably installed inside the lifting platform, and a locking mechanism provided on the lifting platform. The locking mechanism is used to fix the middle cylinder on the lifting platform. When the locking mechanism is unlocked, the middle cylinder can slide and rotate freely on the lifting platform.

[0013] Preferably, the locking mechanism includes a push rod, which is threadedly connected to the lifting platform. The end of the push rod abuts against a groove on the middle cylinder. The middle cylinder is fixed by sliding the push rod inward, and the locking of the middle cylinder is released by sliding the push rod outward.

[0014] Preferably, the vehicle body is also equipped with an air tank, the air outlet of the air pump is connected to the air tank, the top of the air tank is equipped with an air jet nozzle, and an electromagnetic valve is installed in the air jet nozzle for spraying air onto the surface of the windshield to remove dust before assembly.

[0015] Preferably, the bottom of the horizontal and vertical fixed seats is provided with elastic pads to buffer the horizontal and vertical sliding seats respectively.

[0016] Preferably, the frame is an AGV (Automated Guided Vehicle) with autonomous movement capabilities, and its load-bearing capacity is adapted to the total weight of the windshield and the multi-posture linkage mechanism.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides a handling and assembly device for a driver's cab windshield, which has the following advantages: 1. The handling and assembly equipment for the windshield of the cab is equipped with a horizontal rotation mechanism, a lifting mechanism, a longitudinal rotation mechanism and a longitudinal sliding mechanism on the multi-position linkage mechanism. The multi-position linkage mechanism can switch between horizontal and vertical states. In the horizontal state, the windshield is placed horizontally on the frame, which is convenient for transporting the windshield. In the vertical state, the windshield is tilted or vertically inserted between the cab and the fork arm, which is convenient for assembling the windshield onto the cab.

[0018] 2. The handling and assembly equipment for the windshield of the cab uses a horizontal protective assembly to connect the suction cup and the middle cylinder. First, by using the sliding fit between the horizontal fixed seat and the horizontal sliding seat, the communication state between the main cavity in the middle cylinder and the secondary cavity in the suction cup is switched. When the horizontal sliding seat slides to the bottom of the horizontal fixed seat, it covers the communication channel between the suction cup and the middle cylinder. When the windshield is not lifted by external force, it prevents the seal in the middle cylinder from leaking and causing the windshield to fall off. When lifted by external force, the suction cup and the middle cylinder are connected, so that the suction cup can detach from the windshield when the middle cylinder is deflated. Second, by using the sliding fit between the horizontal fixed seat and the horizontal sliding seat, the fine position of the windshield can be manually adjusted, which is convenient for the installation of the windshield.

[0019] 3. The handling and assembly equipment for the cab's front windshield, by setting up a one-way vent and a one-way valve inside the vent, firstly, by utilizing the sliding of the plug inside the one-way valve, it can slide to different positions according to the pressure difference. When there is air leakage in the middle cylinder, it can lock the sliding of the horizontal sliding seat and the horizontal fixed seat, preventing the auxiliary air chamber in the horizontal protective component from communicating with the already leaking auxiliary air chamber in the middle cylinder, thereby playing a role in preventing falls. Secondly, when evacuating the middle cylinder, the one-way valve can be used to directly evacuate the auxiliary air chamber in the horizontal protective component, that is, the horizontal protective component can be evacuated without raising the horizontal sliding seat.

[0020] 4. The handling and assembly equipment for the windshield of the cab is equipped with a vertical protective component. The structure of the vertical protective component is similar to that of the horizontal protective component, except that the sliding direction of the vertical sliding seat is perpendicular to that of the horizontal sliding seat. First, the cavity of the vertical protective component is used as a transfer air chamber, adding a layer of protection between the main air chamber of the middle cylinder and the auxiliary air chamber of the horizontal protective component. Second, the sliding of the vertical and horizontal sliding seats, along with the sliding in two vertical directions, makes the installation of the windshield more versatile.

[0021] 5. The handling and assembly equipment for the front windshield of the cab includes an air tank installed inside the vehicle body. The air tank not only serves as an additional counterweight but also collects gas extracted from the middle cylinder by the air pump, which is then used to clean the glass stored on the vehicle frame. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention in a horizontal state, used for transporting the windshield.

[0023] Figure 2 This is a schematic diagram of the structure of the present invention when assembling glass on a forklift.

[0024] Figure 3 This is a schematic diagram of the structure of the present invention in a vertical position, used for assembling the windshield.

[0025] Figure 4 This is a schematic diagram of the structure of the middle cylinder, support assembly and suction cup of the present invention during the assembly of the windshield.

[0026] Figure 5 For the present invention Figure 4 A front view of the assembled components.

[0027] Figure 6 For the present invention Figure 5 Cross-sectional view of AA.

[0028] Figure 7 For the present invention Figure 5 Cross-sectional view of BB in the middle.

[0029] Figure 8 This is an exploded view of the middle cylinder, support assembly, and suction cup of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the cylinder in this invention.

[0031] Figure 10 This is a schematic diagram of the vertical fixing base of the present invention.

[0032] Figure 11 This is a schematic diagram of the vertical sliding seat of the present invention.

[0033] Figure 12 This is a partial cross-sectional view of the one-way air valve of the present invention.

[0034] In the diagram: 1. Frame; 11. Cargo box; 12. Counterweight; 13. Control box; 2. Multi-posture linkage mechanism; 21. Rotary seat; 22. Rotary table; 23. Lifting seat; 24. Lifting table; 25. Air pump; 26. Middle cylinder; 27. Support assembly; 28. Suction cup; 3. Windshield; 41. Cab; 42. Fork arm; 5. Horizontal protective assembly; 51. Horizontal fixed seat; 52. Horizontal sliding seat; 6. Vertical protective assembly; 61. Vertical fixed seat; 62. Vertical sliding seat; 81. Main air vent; 82. One-way air vent; 83. One-way air valve; 831. Plug; 832. Side passage; 833. Air valve spring; 91. Outer window; 92. Inner window; 93. Elastic pad. Detailed Implementation

[0035] 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.

[0036] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Example 1: This embodiment provides a handling and assembly device for the front windshield of a driver's cab, which has the following technical features.

[0040] Please see Figure 1-12 A handling and assembly device for a windshield 3 in a driver's cab includes a frame 1, a cargo box 11 and a multi-posture linkage mechanism 2 on the frame 1, and a horizontal rotation mechanism, a lifting mechanism, a longitudinal rotation mechanism and a longitudinal sliding mechanism on the multi-posture linkage mechanism 2, which are used to switch the state of the windshield 3 between a horizontal state and a vertical state. The multi-posture linkage mechanism 2 also includes a suction cup 28 for adsorbing the windshield 3 and an air pump 25 for providing suction. The suction cup 28 is fixed to the middle cylinder 26 by a support assembly 27. The inner cavity of the middle cylinder 26 is connected to the air intake port of the air pump 25 through a hose. The support assembly 27 includes a horizontal protective assembly 5. The horizontal protective assembly 5 includes a horizontal fixed seat 51 and a horizontal sliding seat 52. One end of the horizontal sliding seat 52 slides in the horizontal fixed seat 51, and the other end is fixedly connected to the suction cup 28. The horizontal fixed seat 51 is fixedly installed on the front mechanism. The inner cavity of the front mechanism is connected to the inner cavity of the middle cylinder 26. When the windshield 3 is in a vertical position, when the horizontal sliding seat 52 slides to the bottom, the inner cavity of the horizontal sliding seat 52 separates from the inner cavity of the middle cylinder 26. When the horizontal sliding seat 52 is raised, the inner cavity of the horizontal sliding seat 52 connects with the inner cavity of the middle cylinder 26.

[0041] It should be noted that when the front mechanism does not have a vertical protective component 6 in the multi-posture linkage mechanism 2, it refers to the middle cylinder 26 or the support structure fixed to the middle cylinder 26; when the front mechanism has a vertical protective component 6 in the multi-posture linkage mechanism 2, it refers to the vertical sliding seat 62.

[0042] It should be noted that the horizontal state means that the windshield 3 is parallel to the horizontal plane, and the frame 1 is used to transport the windshield 3. The vertical state means that the windshield 3 is perpendicular to or inclined to the horizontal plane, and the frame 1 is used to assemble the windshield 3.

[0043] It should be noted that the horizontal rotation mechanism has a horizontal plane for rotating the windshield 3 in the horizontal direction; the lifting mechanism has a vertical direction for lifting and lowering, which is perpendicular to the plane of rotation of the horizontal rotation mechanism, and is used to lift and lower the windshield 3 in the vertical direction; the vertical rotation mechanism has a plane of rotation perpendicular to the plane of rotation of the horizontal rotation mechanism, and is used to rotate the windshield 3 in the vertical direction; the vertical sliding mechanism has a horizontal or vertical direction for sliding, which is used to push the windshield 3 to slide in the vertical direction.

[0044] Specifically, the aforementioned horizontal plane refers to the horizontal plane of the frame 1.

[0045] In an optional embodiment, the surface of the horizontal fixed base 51 mounted on the front mechanism is provided with an outer window 91, and the front mechanism is provided with a main air hole 81 corresponding to the position of the outer window 91. The surface of the horizontal sliding base 52 that is in contact with the outer window 91 is provided with an inner window 92. One end of the horizontal sliding base 52 inside the horizontal fixed base 51 is in communication with the interior of the horizontal fixed base 51, and the other end of the horizontal sliding base 52 outside the horizontal fixed base 51 is in communication with the suction cup 28. When the horizontal sliding seat 52 slides to the bottom of the horizontal fixed seat 51, the horizontal sliding seat 52 covers the main air hole 81, thereby separating the inner cavity of the horizontal sliding seat 52 from the inner cavity of the front mechanism; when the horizontal sliding seat 52 slides upward, the inner cavity of the front mechanism communicates with the inner cavity of the horizontal sliding seat 52 through the main air hole 81, the outer window 91 and the inner window 92.

[0046] In an optional embodiment, a one-way air hole 82 is also provided on the front mechanism at the position corresponding to the outer window 91. A one-way air valve 83 is provided in the one-way air hole 82. The one-way air valve 83 includes a plug 831 that is slidably disposed in the one-way air hole 82. The plug 831 is connected to an air valve spring 833. A side channel 832 is provided on the inner wall of the one-way air hole 82. When the air pressure inside the front mechanism is the same as the air pressure inside the horizontal sliding seat 52, the plug 831 slides to the middle position inside the one-way vent 82. At this time, the one-way vent 82 is separated inside and outside. When the air pressure inside the front mechanism is lower than the air pressure inside the horizontal sliding seat 52, the plug 831 slides inward to the position inside the one-way vent 82 near the front mechanism. At this time, the inner cavity of the front mechanism is connected to the inner cavity of the horizontal sliding seat 52 through the side channel 832 for evacuation. When the air pressure inside the front mechanism is higher than the air pressure inside the horizontal sliding seat 52, the plug 831 slides outward to the position inside the one-way vent 82 near the horizontal sliding seat 52. At this time, the plug 831 protrudes outward, and the bottom of the plug 831 rests on the bottom edge of the inner window 92 to prevent the horizontal sliding seat 52 from rising when the front mechanism leaks air.

[0047] Furthermore, a pressure sensor is installed inside the one-way air valve 83. The pressure sensor is connected to the air valve spring 833 and is used to detect the air pressure difference between the inner cavity of the middle cylinder 26 and the inner cavity of the vertical protective component 6, and between the inner cavity of the vertical protective component 6 and the inner cavity of the horizontal protective component 5.

[0048] In an optional embodiment, the support assembly 27 further includes a vertical protection assembly 6, which includes a vertical fixed seat 61 and a vertical sliding seat 62. One end of the vertical sliding seat 62 slides within the vertical fixed seat 61, and the other end is fixedly connected to the horizontal fixed seat 51. The vertical fixed seat 61 is fixedly installed on the middle cylinder 26. When the windshield 3 is horizontal, when the vertical sliding seat 62 slides to the bottom, the inner cavity of the vertical sliding seat 62 separates from the inner cavity of the middle cylinder 26. When the vertical sliding seat 62 is raised, the inner cavity of the vertical sliding seat 62 connects with the inner cavity of the middle cylinder 26.

[0049] It should be noted that the front mechanism mentioned in the horizontal protection component 5 refers to the vertical sliding seat 62.

[0050] It should be noted that the structure of the vertical protective component 6 is similar to that of the horizontal protective component 5, the only difference being that the sliding direction of the horizontal sliding seat 52 is perpendicular to the sliding direction of the vertical sliding seat 62.

[0051] In an optional embodiment, a counterweight 12 and a control box 13 are provided inside the vehicle body 11. The control box 13 is electrically connected to the controllers of the horizontal rotation mechanism and the lifting mechanism in the multi-posture linkage mechanism 2, and is used to coordinate the control of the actions of each mechanism.

[0052] In an optional embodiment, the multi-posture linkage mechanism 2 includes a rotating seat 21 fixed on the frame 1, a rotating platform 22 rotatably connected to the rotating seat 21, a lifting seat 23 and an air pump 25 mounted on the rotating platform 22, a lifting platform 24 vertically connected to the lifting seat 23, a middle cylinder 26 slidably installed inside the lifting platform 24, and a locking mechanism provided on the lifting platform 24 for fixing the middle cylinder 26 on the lifting platform 24. When the locking mechanism is unlocked, the middle cylinder 26 can slide and rotate freely on the lifting platform 24.

[0053] It should be noted that the horizontal rotation mechanism consists of a rotating seat 21 and a rotating platform 22, the lifting mechanism consists of a lifting seat 23 and a lifting platform 24, and the longitudinal rotation mechanism and the longitudinal sliding mechanism are jointly composed of a lifting platform 24 and a middle cylinder 26.

[0054] Furthermore, a motor is installed inside the rotating base 21, and a gear is fixed on the rotating shaft of the motor. A gear that meshes with the gear on the rotating shaft is installed on the rotating table 22, and the rotating base 21 is driven to rotate by the motor.

[0055] Furthermore, the lifting seat 23 is a hydraulic cylinder, which pushes the lifting platform 24 up and down through a hydraulic rod.

[0056] In an optional embodiment, the locking mechanism includes a push rod that is threadedly connected to the lifting platform 24. The end of the push rod abuts against a groove in the middle cylinder 26. The middle cylinder 26 is fixed by sliding the push rod inward, and the locking of the middle cylinder 26 is released by sliding the push rod outward.

[0057] Furthermore, the locking mechanism includes at least two push rods, each of which is vertically connected to the side wall of the lifting platform 24 by a thread, with its end corresponding to the annular groove on the outer circumference of the middle cylinder 26; by screwing in the push rod so that its end is embedded in the annular groove, the middle cylinder 26 is slidably and rotatedly locked; by unscrewing the push rod, the lock is released.

[0058] In an optional embodiment, an air tank is also provided inside the vehicle body 11, and the air outlet of the air pump 25 is connected to the air tank. An air jet is provided on the top of the air tank, and a solenoid valve is provided inside the air jet for spraying air onto the surface of the windshield 3 to remove dust before assembly.

[0059] In an optional embodiment, the bottom of the horizontal fixed seat 51 and the vertical fixed seat 61 are provided with elastic pads 93 for buffering the horizontal sliding seat 52 and the vertical sliding seat 62, respectively.

[0060] In an optional embodiment, the frame 1 is an AGV trolley with autonomous movement function, whose load-bearing capacity is adapted to the total weight of the windshield 3 and the multi-posture linkage mechanism 2.

[0061] Further, an "electric push rod + rotary motor" is added to the middle cylinder 26: an electric push rod (controlling longitudinal sliding) is installed between the lifting platform 24 and the middle cylinder 26, and a rotary motor (controlling longitudinal rotation) is installed on the outside of the middle cylinder 26 and electrically connected to the control box 13. This replaces manual pushing and realizes a fully automatic coordinated action of "horizontal rotation-lifting-longitudinal sliding-longitudinal rotation", improving assembly accuracy (error can be controlled within ±1mm) and efficiency.

[0062] Further optimizations were made to the pressure sensor warning logic: when the pressure sensor detects that the air pressure is lower than the set threshold (e.g., -0.07MPa), in addition to triggering an alarm, the control box 13 automatically starts the "backup air pump" (a newly added backup device) to maintain stable negative pressure; if the air pressure continues to drop to the safety threshold (e.g., -0.05MPa), the "mechanical locking mechanism" (an electromagnetic lock is set between the horizontal sliding seat 52 and the fixed seat 51) is automatically activated to forcibly fix the sliding seat, providing double protection for glass safety.

[0063] Furthermore, the middle cylinder 26 is equipped with an exhaust valve, which is a solenoid valve and electrically connected to the controller.

[0064] In summary, the handling and assembly equipment for the windshield of the cab can switch between horizontal and vertical states by setting up a horizontal rotation mechanism, a lifting mechanism, a longitudinal rotation mechanism and a longitudinal sliding mechanism on the multi-position linkage mechanism 2. In the horizontal state, the windshield 3 is placed horizontally on the frame 1, which is convenient for transporting the windshield 3. In the vertical state, the windshield 3 is tilted or vertically inserted between the cab 41 and the fork arm 42, which is convenient for assembling the windshield 3 onto the cab 41.

[0065] The handling and assembly equipment for the windshield of the cab uses a horizontal protective component 5 to connect the suction cup 28 and the middle cylinder 26. First, by using the sliding fit between the horizontal fixed seat 51 and the horizontal sliding seat 52, the communication state between the main cavity in the middle cylinder 26 and the secondary cavity in the suction cup 28 is switched. When the horizontal sliding seat 52 slides to the bottom of the horizontal fixed seat 51, it covers the communication channel between the suction cup 28 and the middle cylinder 26. When the windshield 3 is not lifted by external force, it prevents the seal in the middle cylinder 26 from leaking and causing the windshield 3 to fall off. When it is lifted by external force, the suction cup 28 is connected to the middle cylinder 26, so that when the middle cylinder 26 is deflated, the suction cup 28 can be detached from the windshield 3. Second, by using the sliding fit between the horizontal fixed seat 51 and the horizontal sliding seat 52, the fine position of the windshield 3 can be manually adjusted, which is convenient for the installation of the windshield 3.

[0066] The handling and assembly equipment for the cab windshield, by setting a one-way vent 82 and a one-way valve 83 inside the one-way vent 82, firstly, by sliding the plug 831 inside the one-way valve 83, it can slide to different positions according to the pressure difference. When there is air leakage in the middle cylinder 26, it can lock the sliding of the horizontal sliding seat 52 and the horizontal fixed seat 51, preventing the auxiliary air chamber in the horizontal protective component 5 from communicating with the already leaking auxiliary air chamber in the middle cylinder 26, thereby playing a role in preventing falls. Secondly, when evacuating the middle cylinder 26, the one-way valve 83 can be used to directly evacuate the auxiliary air chamber in the horizontal protective component 5, that is, the horizontal protective component 5 can be evacuated without raising the horizontal sliding seat 52.

[0067] The handling and assembly equipment for the windshield of the cab incorporates a vertical protective component 6. The structure of the vertical protective component 6 is similar to that of the horizontal protective component 5, except that the sliding direction of the vertical sliding seat 62 is perpendicular to that of the horizontal sliding seat 52. First, the cavity of the vertical protective component 6 is used as a transfer air chamber, adding a layer of protection between the main air chamber of the middle cylinder 26 and the auxiliary air chamber of the horizontal protective component 5. Second, the sliding of the vertical sliding seat 62 and the horizontal sliding seat 52, along with the sliding in two vertical directions, makes the installation of the windshield 3 more versatile.

[0068] The handling and assembly equipment for the cab front glass uses an air tank installed inside the vehicle body 11. The air tank not only serves as an additional counterweight mechanism, but also collects the gas extracted from the middle cylinder 26 by the air pump 25, and uses this gas to clean the glass stored on the frame 1.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0070] 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 handling and assembly device for a driver's cab front glass, comprising a chassis (1), characterized in that, The vehicle frame (1) is provided with a vehicle box (11) and a multi-posture linkage mechanism (2). The multi-posture linkage mechanism (2) is provided with a horizontal rotation mechanism, a lifting mechanism, a longitudinal rotation mechanism and a longitudinal sliding mechanism, which are used to switch the state of the windshield (3) between a horizontal state and a vertical state. The multi-posture linkage mechanism (2) also includes a suction cup (28) for adsorbing the windshield (3) and a vacuum pump (25) for providing suction. The suction cup (28) is fixed on the middle cylinder (26) by a support assembly (27). The inner cavity of the middle cylinder (26) is connected to the air intake of the vacuum pump (25) through a hose. The support assembly (27) includes a horizontal protective assembly (5), which includes a horizontal fixed seat (51) and a horizontal sliding seat (52). One end of the horizontal sliding seat (52) slides inside the horizontal fixed seat (51), and the other end is fixedly connected to the suction cup (28). The horizontal fixed seat (51) is fixedly installed on the front mechanism, and the inner cavity of the front mechanism is connected to the inner cavity of the middle cylinder (26). When the windshield (3) is in a vertical state, when the horizontal sliding seat (52) slides to the bottom, the cavity inside the horizontal sliding seat (52) is separated from the cavity inside the middle cylinder (26). When the horizontal sliding seat (52) is raised, the cavity inside the horizontal sliding seat (52) is connected to the cavity inside the middle cylinder (26). The horizontal fixed base (51) has an outer window (91) on the surface mounted on the front mechanism. The front mechanism has a main air hole (81) at the position corresponding to the outer window (91). The horizontal sliding base (52) has an inner window (92) on the surface that fits against the outer window (91). The end of the horizontal sliding base (52) inside the horizontal fixed base (51) is connected to the interior of the horizontal fixed base (51). The end of the horizontal sliding base (52) outside the horizontal fixed base (51) is connected to the suction cup (28). When the horizontal sliding seat (52) slides to the bottom of the horizontal fixed seat (51), the horizontal sliding seat (52) covers the main air hole (81), thereby separating the inner cavity of the horizontal sliding seat (52) from the inner cavity of the front mechanism; when the horizontal sliding seat (52) slides upward, the inner cavity of the front mechanism communicates with the inner cavity of the horizontal sliding seat (52) through the main air hole (81), the outer window (91) and the inner window (92); The front mechanism is also provided with a one-way air hole (82) at the position corresponding to the outer window (91). A one-way air valve (83) is provided in the one-way air hole (82). The one-way air valve (83) includes a plug (831) that is slidably disposed in the one-way air hole (82). The plug (831) is connected to an air valve spring (833). A side channel (832) is provided on the inner wall of the one-way air hole (82). When the air pressure inside the front mechanism is the same as the air pressure inside the horizontal sliding seat (52), the plug (831) slides to the middle position inside the one-way air hole (82), at which time the one-way air hole (82) is separated inside and outside. When the air pressure inside the front mechanism is lower than the air pressure inside the horizontal sliding seat (52), the plug (831) slides inward to the position inside the one-way air hole (82) close to the front mechanism. At this time, the inner cavity of the front mechanism is connected to the side channel (832) by the air pressure inside the horizontal sliding seat (52). The inner cavity of the horizontal sliding seat (52) is connected for evacuation. When the air pressure in the inner cavity of the front mechanism is higher than the air pressure in the horizontal sliding seat (52), the plug (831) slides outward to a position close to the horizontal sliding seat (52) in the one-way air hole (82). At this time, the plug (831) protrudes outward, and the bottom of the plug (831) rests on the bottom edge of the inner window (92) to prevent the horizontal sliding seat (52) from rising when the front mechanism leaks air. The support assembly (27) also includes a vertical protection assembly (6), which includes a vertical fixed seat (61) and a vertical sliding seat (62). One end of the vertical sliding seat (62) slides in the vertical fixed seat (61), and the other end is fixedly connected to the horizontal fixed seat (51). The vertical fixed seat (61) is fixedly installed on the middle cylinder (26). When the windshield (3) is horizontal, when the vertical sliding seat (62) slides to the bottom, the cavity inside the vertical sliding seat (62) is separated from the cavity inside the middle cylinder (26). When the vertical sliding seat (62) is raised, the cavity inside the vertical sliding seat (62) is connected to the cavity inside the middle cylinder (26).

2. The handling and assembly equipment for the front windshield of a driver's cab according to claim 1, characterized in that, The carriage (11) is equipped with a counterweight (12) and a control box (13). The control box (13) is electrically connected to the controllers of the horizontal rotation mechanism and the lifting mechanism in the multi-posture linkage mechanism (2) for coordinated control of the actions of each mechanism.

3. The handling and assembly equipment for the front windshield of a driver's cab according to claim 1, characterized in that, The multi-posture linkage mechanism (2) includes a rotating seat (21) fixed on the frame (1), a rotating platform (22) is rotatably connected to the rotating seat (21), a lifting seat (23) and an air pump (25) are installed on the rotating platform (22), a lifting platform (24) is lifted and lowered on the lifting seat (23), a middle cylinder (26) is slidably installed in the lifting platform (24), and a locking mechanism is provided on the lifting platform (24). The locking mechanism is used to fix the middle cylinder (26) on the lifting platform (24). When the locking mechanism is unlocked, the middle cylinder (26) can slide and rotate freely on the lifting platform (24).

4. The handling and assembly equipment for the front windshield of a driver's cab according to claim 3, characterized in that, The locking mechanism includes a top rod, which is threadedly connected to the lifting platform (24). The end of the top rod is abutted in a groove on the middle cylinder (26). The middle cylinder (26) is fixed by sliding the top rod inward, and the locking of the middle cylinder (26) is released by sliding the top rod outward.

5. The handling and assembly equipment for the front windshield of a driver's cab according to claim 1, characterized in that, The vehicle body (11) is also equipped with an air tank. The air outlet of the air pump (25) is connected to the air tank. The top of the air tank is equipped with an air jet port, and an electromagnetic valve is installed in the air jet port for spraying air onto the surface of the windshield (3) to remove dust before assembly.

6. The handling and assembly equipment for the front windshield of a driver's cab according to claim 1, characterized in that, The bottom of the horizontal fixed seat (51) and the vertical fixed seat (61) are provided with elastic pads (93) to buffer the horizontal sliding seat (52) and the vertical sliding seat (62) respectively.

7. The handling and assembly equipment for the front windshield of a driver's cab according to claim 1, characterized in that, The frame (1) is an AGV with autonomous movement function, and its load-bearing capacity is adapted to the total weight of the windshield (3) and the multi-posture linkage mechanism (2).

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