Coating workshop anti-explosion RGV for transporting materials

Abstract

The invention belongs to the technical field of rail-mounted automatic guided vehicles, and discloses a coating workshop anti-explosion RGV trolley for transporting materials, which comprises an RGV trolley body, a mounting plate is fixedly mounted on the RGV trolley body, and the coating workshop anti-explosion RGV trolley further comprises a side guide assembly. Multi-angle limiting protection is conducted on materials in a coating workshop through cooperation of the side guide assembly, the side clamping assembly and the blocking assembly, the side clamping assembly can be tightly attached to the arc-shaped surfaces of coating barrels of different specifications through the rotatable clamping plate and the ratchet and pawl mechanism, and multi-angle limiting of side clamping and front / rear blocking is formed through cooperation of the blocking assembly; the side guide assemblies synchronously achieve stable guide limiting in the left-right direction, all-directional protection is jointly formed by the side guide assemblies, the side guide assemblies, the side guide assemblies and the side guide assemblies, the problem that a cylindrical coating barrel is prone to longitudinally toppling over due to centrifugal force or sudden stop is accurately solved, stable transfer of non-barrel-shaped materials is achieved, and the device is suitable for coating barrels of various specifications; and the actual requirement of mixed transportation of multi-specification materials in a coating workshop is met without manually replacing the clamp.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rail-guided automatic guided vehicles, and particularly relates to a coating workshop explosion-proof RGV trolley for transporting materials. BACKGROUND

[0002] With the upgrading of the automobile manufacturing industry towards automation and intelligence, the coating workshop, as a core process section of automobile (especially bus) production, undertakes key operations such as vehicle body surface pretreatment, spraying, drying, etc., and the safety, stability and efficiency of material transfer directly affect the production rhythm and product quality of the whole vehicle. The types of materials transferred in the coating workshop are complex and diverse, including not only cylindrical paint buckets (such as 18L small buckets and 200L large buckets) containing solvent-based paint and diluent, but also bus body parts and non-bucket flat materials such as tool trays. At the same time, due to the volatilization of flammable components such as toluene and xylene in solvent-based paint, the workshop environment is long-term explosive mixture, which puts strict requirements on the explosion-proof performance of the transfer equipment.

[0003] RGV (Rail Guided Vehicle) has gradually replaced manual forklifts and become the mainstream equipment for material transfer in the coating workshop due to its advantages of fixed path, strong carrying capacity and high running precision. However, the RGV trolley in the prior art still has many technical defects to be solved when adapting to the special needs of the coating workshop. One of the core transfer materials in the existing coating workshop is the cylindrical paint bucket, and the arc surface of the paint bucket makes it difficult for the existing RGV to form stable positioning. The RGV with flat conveying or fixed side design can only limit the lateral sliding of the paint bucket and cannot resist the inertial impact during transfer. The paint bucket is prone to longitudinal tilting due to centrifugal force or inertia, resulting in solvent leakage, which not only causes material waste but also aggravates the safety hazards in the workshop. Even though some RGVs claim to have multi-material adaptation capability, the clamping mechanism for cylindrical paint buckets cannot adapt to the arc surface of the paint bucket, and the clamping mechanism for cylindrical paint buckets is prone to local pressure concentration when clamping flat materials, resulting in deformation of the workpiece or damage to the auxiliary material box. SUMMARY

[0004] To solve the problems raised in the background art, the present application provides a coating workshop explosion-proof RGV trolley for transporting materials, which comprises an RGV trolley body, an installation plate fixedly installed on the RGV trolley body, and a side guide assembly arranged on both sides of the installation plate for guiding the material to quickly slide out of the designated area and prevent the material from moving out from the left / right side; The side guide assembly comprises a roller wheel movably connected to the installation plate, two side installation guide frames are installed on the installation plate, a fixed rod is connected inside each of the two side installation guide frames, and the fixed rod is movably connected inside the installation plate. The side clamping assembly is arranged on the mounting plate and used for limiting the paint bucket to prevent it from moving out; The blocking assembly is arranged on the mounting plate and used for blocking the paint bucket to prevent it from moving out from the front or back. The blocking assembly includes a blocking frame, both sides of the blocking frame are connected with round-square rods, the round-square rods are movably connected on the mounting plate, a speed reducer motor is connected on the round-square rods, the speed reducer motor is fixedly installed on the mounting plate, and a side limiting piece is installed on the blocking frame and used for tightly abutting and limiting other transported materials.

[0005] Preferably, the side clamping assembly includes a receiving groove, the receiving groove is arranged on the mounting plate, a clamping plate is rotatably connected in the receiving groove through a support plate, a drive motor is fixedly installed in the receiving groove of the clamping plate, the drive motor is connected with the clamping plate, both sides of the clamping plate are connected with ratchets, a limiting plate is connected in the receiving groove, a pawl is rotatably connected in the limiting plate, the pawl is clamped with the ratchet, an abutting spring piece is connected on the pawl, the abutting spring piece is connected with the inner wall of the receiving groove, and the pawl is controlled to be clamped with the ratchet through a control member.

[0006] Preferably, the control member includes a connecting block, the connecting block is connected on the pawl, and a control rod is slidably connected in the limiting plate and connected with the connecting block.

[0007] Preferably, the side limiting piece includes a hidden groove, the hidden groove is arranged on the blocking frame, a fixed plate is connected in the hidden groove, an electric push rod is fixedly installed on the fixed plate, the electric push rod is connected with a pushing plate at the telescopic end of the electric push rod, a center rod is connected in the hidden groove, a rotating plate is movably connected on the center rod, the pushing plate is movably connected with the pushing plate, a stabilizing rod is connected in the hidden groove, a driving plate is sleeved on the stabilizing rod, and the driving plate is movably connected with the rotating plate.

[0008] Preferably, a friction pad is connected on the pushing plate, and a clamping pad is connected on the driving plate.

[0009] Preferably, a linkage adjusting assembly is slidably connected on the round-square rod, the linkage adjusting assembly includes a sliding bevel gear, the sliding bevel gear is slidably connected on the round-square rod, a fixed bevel gear is connected on the fixed rod, and the sliding bevel gear is slidably adjusted on the round-square rod through an elastic fixed pushing member.

[0010] Preferably, the elastic fixed pushing member includes an adjusting sleeve, the adjusting sleeve is threadedly connected on the round-square rod, the adjusting sleeve is in contact with the sliding bevel gear, a fixed ring is connected on the round-square rod, a pushing spring piece is connected on the fixed ring, and the pushing spring piece is in contact with the sliding bevel gear.

[0011] Preferably, the round square rod is connected with a blocking ring, and the blocking ring is in contact with the sliding bevel gear.

[0012] Preferably, the side installation guide frame is movably connected with a side guide roller, and the blocking frame is movably connected with a region guide roller.

[0013] Preferably, the push plate and the push plate are both fixedly installed with a pressure sensor.

[0014] Compared with the prior art, the present application has the following advantages: The present application cooperates the side guide assembly, the side clamping assembly and the blocking assembly to protect the materials in the painting workshop from multi-angle limiting, wherein the side clamping assembly can tightly fit the arc surface of different specifications of paint buckets through the rotatable clamping plate and the ratchet pawl mechanism, and cooperates with the blocking assembly to form multi-angle limiting of side clamping and front / rear blocking, and the side guide assembly synchronously realizes stable guiding and limiting in the left and right directions, and the three together constitute omnidirectional protection, which not only accurately solves the problem that the cylindrical paint bucket is easily longitudinally tilted due to centrifugal force or sudden stop, but also realizes stable transfer of non-barrel-shaped materials, and adapts to various specifications of paint buckets, and does not need manual replacement of clamps to adapt to the actual needs of mixed transfer of various specifications of materials in the painting workshop.

[0015] Further, the side guide assembly and the blocking assembly form four-edge blocking in the left and right and front and rear directions, and cooperate with the diagonal clamping design of the side clamping assembly to jointly constitute omnidirectional limiting, and no matter what kind of material is being transferred, whether it is barrel-shaped, planar or other irregular shape, it can be fully limited in four dimensions, effectively avoiding the risk of falling from the side or the front and rear end during the transfer process, especially in the turning and sudden stop scenes, and the side limiting piece on the blocking assembly has double adaptation capability, which can accurately abut against the vertically placed barrel-shaped material to further strengthen the longitudinal anti-tilting stability, and can also abut against the planar material and the special-shaped workpiece through the unfolding action, so that the mixed transfer of various types of materials can be realized without replacing the special clamps, and the mixed transfer needs of paint barrels, workpiece trays and auxiliary material boxes in the painting workshop are adapted, and the production rhythm is significantly improved. The side guide assembly and the blocking assembly can be flexibly adjusted in the unfolding angle through linkage adjustment, which breaks through the limitation of fixed angle of the existing RGV guide and blocking structure, and can be adapted to irregular materials, such as protruding tooling, irregular contour spraying parts or multi-specification mixed materials, such as the combination of L small barrels and L large barrels, and the half-unfolded state of non-ninety degrees can be adapted to the irregular contour of the material through the inclination angle, avoiding the jamming or limiting failure of the fixed right-angle structure to irregular materials, ensuring that all kinds of materials can be stably limited during mixed transfer, and at the same time, the side guide assembly and the blocking assembly extend outwardly in the half-unfolded state, which can temporarily expand the material placing area to meet the needs of temporary transfer of multiple batches of small batches of materials in the workshop, reduce the number of round trips for single transfer, and further improve the transfer efficiency.

[0016] Further, the linkage adjusting assembly adopts manual operation design, relies on the cooperation of the sliding bevel gear, the fixed bevel gear, the adjusting sleeve and the push spring, realizes the accuracy of adjustment and the convenience of operation: by rotating the adjusting sleeve on the round square rod, the sliding bevel gear can be pushed to slide along the round square rod and be fixed in meshing state with the fixed bevel gear, and the elastic push spring on the fixed ring is used to realize elastic pushing to move out of the meshing state, thereby controlling the meshing state of the sliding bevel gear and the fixed bevel gear, which can not only separately expand one blocking frame, but also synchronously expand one blocking frame and the side installation guide frame on the corresponding side, adapts to different unloading direction requirements, and when the material is unloaded, the overall position of the RGV vehicle body does not need to be adjusted, and only by manually adjusting, the corresponding side limiting structure can be opened, which adapts to the rapid production change requirement of the coating workshop with multiple stations and multiple unloading directions, and is especially suitable for the flexible transfer scene of small batch and multiple batches. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the present application; Figure 2 is an exploded perspective view of the mounting plate and the side clamping assembly of the present application; Figure 3 is a perspective view of the side limiting part of the present application; Figure 4 is a front view of the side limiting part of the present application; Figure 5 is a perspective view of the card and the mounting plate of the present application; Figure 6 is a perspective view of the side clamping assembly of the present application; Figure 7 is a perspective view of the ratchet of the present application; Figure 8 is a perspective view of the linkage adjusting assembly of the present application; Figure 9This is a three-dimensional exploded view of the linkage adjustment component of the present invention. In the figure: 1. RGV vehicle body; 2. Mounting plate; 3. Side guide assembly; 31. Roller; 32. Side mounting guide frame; 33. Fixing rod; 4. Side clamping assembly; 41. Storage slot; 42. Clamping plate; 43. Drive motor; 44. Ratchet; 45. Limiting plate; 46. Pawl; 47. Clamping spring; 48. Control component; 481. Connecting block; 482. Control rod; 5. Blocking assembly; 51. Blocking frame; 52. Round / square rod; 53. Gear motor; 54. Side limiting component; 55. 1. Concealed slot; 542. Fixed plate; 543. Electric push rod; 544. Push plate; 545. Center rod; 546. Rotating plate; 547. Stabilizing rod; 548. Actuating plate; 6. Friction pad; 7. Clamping pad; 8. Linkage adjustment assembly; 81. Sliding bevel gear; 82. Fixed bevel gear; 83. Elastic fixed pusher; 831. Adjusting sleeve; 832. Fixed ring; 833. Push spring; 9. Retaining ring; 10. Side guide roller; 11. Area guide roller; 12. Pressure sensor. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 4 As shown, the present invention provides an explosion-proof RGV trolley for transporting materials in a painting workshop, including an RGV body 1, an mounting plate 2 fixedly installed on the RGV body 1, and further including... Side guide assembly 3 is disposed on both sides of mounting plate 2 to guide the material, allowing it to slide quickly out of the designated area and preventing the material from moving out from the left / right side; The side guide assembly 3 includes a roller 31, which is movably connected to the mounting plate 2. Two side mounting guide frames 32 are mounted on the mounting plate 2. A fixing rod 33 is connected inside each of the two side mounting guide frames 32, and the fixing rod 33 is movably connected inside the mounting plate 2. Side clamp assembly 4 is mounted on mounting plate 2 and is used to limit the paint bucket to prevent it from moving out. Blocking component 5, which is mounted on mounting plate 2, is used to block the paint bucket from being moved out from the front / back. The blocking assembly 5 comprises a blocking frame 51, and a round-square rod 52 is connected to the two sides of the blocking frame 51 and movably connected to the mounting plate 2; a speed reducer motor 53 is connected to the round-square rod 52 and fixedly installed on the mounting plate 2; and a side limiting piece 54 is installed on the blocking frame 51 and used for abutting and limiting other transported materials; Specifically, the RGV vehicle body 1 not only provides a stable mounting base and bearing support for the mounting plate 2, the side guide assembly 3, the side clamping assembly 4 and the blocking assembly 5, but also integrates multiple core functional systems suitable for the dangerous environment of the coating workshop and the automation production demand, to ensure the safety, efficiency and maintainability of the transfer process. The explosion-proof system of the whole vehicle: the battery box, the control box and each driving motor 43 of the RGV vehicle body 1, including the speed reducer motor 53 of the blocking assembly 5 and the driving motor 43 of the side clamping assembly 4, are all subjected to professional explosion-proof treatment, and an explosion-proof structure design and an explosion-proof sealing process are adopted, so as to completely meet the use requirements of the explosive mixture environment of the coating workshop and avoid the safety risks caused by electrical sparks and mechanical friction sparks from the source. The automatic navigation system: through the sensors such as laser radar and camera carried by the RGV vehicle body 1, the road profile and the surrounding obstacles are automatically sensed, the track path and the station position are accurately recognized, the autonomous navigation and accurate parking of the RGV vehicle body 1 are realized, and the automatic pick-up and drop-off of materials can be completed without manual intervention. The transfer accuracy is improved through the cooperative action of each limiting assembly. The dispatching control system: according to the production plan of the workshop and the real-time running state of the RGV vehicle body 1 such as the load condition and the remaining power, the running path, speed and operation sequence of the trolley can be dynamically dispatched to avoid multi-car conflicts, optimize the logistics rhythm and ensure the accurate matching of the transfer and production plan of multiple types of materials such as paint buckets, workpieces and auxiliary materials. The anti-collision warning system: with the help of radar and infrared sensors, the distance and speed difference between the RGV vehicle body 1 and the surrounding equipment, personnel and workpieces are detected in real time. When a collision risk is detected, a speed reduction or emergency stop instruction is automatically triggered, and each limiting assembly is locked to prevent materials from falling, leaking or equipment from being damaged due to collision. The fault diagnosis system: the battery voltage, motor speed, component operation parameters and explosion-proof sealing state of the RGV vehicle body 1 are monitored in real time. If abnormalities such as motor failure, sensor malfunction or sealing failure are found, an audible and visual alarm is immediately issued and the fault cause is accurately diagnosed to facilitate the staff to quickly troubleshoot and avoid production interruption caused by expanding faults. The maintenance system: according to the running time, operation frequency and fault diagnosis results of the RGV vehicle body 1, regular maintenance reminders such as motor lubrication, explosion-proof sealing inspection and battery maintenance are generated to guide the staff to carry out targeted maintenance, prolong the service life of the equipment and reduce the failure rate. Data management system: automatically record the operation data of RGV car body 1 such as transfer times, driving mileage, station stop record, fault information and maintenance record, provide detailed data support for workshop production management, logistics optimization and equipment maintenance, and help to realize the continuous improvement of production process.

[0020] As shown in Figures 5 to 7 The side clamping assembly 4 includes a receiving groove 41, which is provided on the mounting plate 2. The receiving groove 41 is rotatably connected with a clamping plate 42 through a support plate. The inside of the receiving groove 41 is fixedly provided with a driving motor 43 connected with the clamping plate 42. The two sides of the clamping plate 42 are connected with a ratchet wheel 44. The inside of the receiving groove 41 is connected with a limiting plate 45. The inside of the limiting plate 45 is rotatably connected with a ratchet pawl 46 engaged with the ratchet wheel 44. The ratchet pawl 46 is connected with a pressing spring 47 connected with the inner wall of the receiving groove 41. The ratchet pawl 46 is controlled to be engaged with the ratchet wheel 44 through a control member 48.

[0021] Specifically, the side clamping assembly 4 is driven by the double driving limiting structure of the driving motor 43 and the ratchet wheel 44 and the ratchet pawl 46 mechanical lock, which realizes the precise clamping of the barrel-shaped material, ensures the stability and safety of the transfer in the coating workshop. After the driving motor 43 drives the clamping plate 42 to rotate and clamp the paint barrel, the pressing spring 47 will push the ratchet pawl 46 to tightly engage with the ratchet wheel 44, forming a one-way mechanical lock structure. Even if the driving motor 43 is powered off or encounters sudden stop, collision or other sudden situations during transfer, the ratchet pawl 46 can also lock the ratchet wheel 44 tightly to prevent the clamping plate 42 from rotating in the opposite direction and causing the material to loosen. The outer surface of the clamping plate 42 is a roughness contact surface, which can increase the friction when contacting with the material and is not easy to fall off. When not in use, the clamping plate 42 can be rotated and stored in the receiving groove 41 under the driving of the driving motor 43, keeping flush with the surface of the mounting plate 2. It will not interfere with the linkage adjustment of the side guide assembly 3 and the blocking assembly 5, nor will it occupy the material placing space of the mounting plate 2, ensuring that non-barrel-shaped materials such as large workpiece trays can be placed smoothly, and improving the space utilization of the mounting plate 2. When the control member 48 drives the ratchet pawl 46 to separate from the ratchet wheel 44, the pressing spring 47 will be compressed synchronously. The ratchet pawl 46 rotates in the limiting plate 45 and separates from the tooth groove of the ratchet wheel 44. With the reverse rotation of the driving motor 43, the material can be quickly loosened, without affecting the unloading efficiency.

[0022] As shown in Figures 5 to 7 The control member 48 includes a connecting block 481 connected to the ratchet pawl 46. The inside of the limiting plate 45 is slidably connected with a control rod 482 connected with the connecting block 481.

[0023] Specifically, the control rod 482 is rigidly connected with the connecting block 481 and the pawl 46 in an integrated manner, so that the linear sliding of the control rod 482 can be directly and losslessly converted into the unlocking rotation of the pawl 46, and the unlocking stroke is strictly limited by the length of the sliding groove preset by the limiting plate 45, which can not only avoid damage to the tooth tip of the pawl 46 or the tooth groove of the ratchet wheel 44 caused by excessive operation, but also ensure that the pawl 46 is completely separated from the tooth groove of the ratchet wheel 44 without being stuck.

[0024] As shown in Figures 2 to 4 The side limiting part 54 includes a hidden groove 541 formed on the blocking frame 51, a fixed plate 542 connected in the hidden groove 541, an electric push rod 543 fixedly installed on the fixed plate 542, a push plate 544 connected to the telescopic end of the electric push rod 543, a center rod 545 connected in the hidden groove 541, a rotating plate 546 movably connected to the center rod 545, the push rod movably connected to the push plate 544, a stabilizing rod 547 connected in the hidden groove 541, and a driving plate 548 sleeved on the stabilizing rod 547, the driving plate 548 movably connected to the rotating plate 546.

[0025] Specifically, when the electric push rod 543 is telescoped, the driving plate 548 is driven to swing around the stabilizing rod 547 to tightly abut against the material through the hinged linkage of the push plate 544 and the rotating plate 546, compared with the design of directly abutting against the material by a single push rod, the driving plate 548 can compensate the angle according to the surface profile of the material, such as a plane, a slightly convex, or an arc-shaped edge, to ensure that the contact area with the material is maximized, which can not only avoid damage to the material caused by local pressure concentration, but also improve the clamping stability, especially suitable for the transfer demand of special-shaped workpieces; when unloading, the electric push rod 543 is reversely contracted to drive each component to reset along the original transmission path, the driving plate 548 returns to the initial position under the action of its own gravity and the limiting action of the stabilizing rod 547, and each component is completely stored in the hidden groove 541, so that the opening of the hidden groove 541 is flush with the surface of the blocking frame 51, which can avoid interfering with the width adjustment of the side guiding assembly 3 or the rotation and expansion of the blocking frame 51, and ensure the smoothness of the linkage of the whole machine structure; the electric push rod 543 adopts an explosion-proof stepping design, and the stroke adjustment accuracy can reach 1mm, which can realize the step control of the clamping force in combination with the force arm optimization of the rotating plate 546.

[0026] As shown in Figures 3 to 4 The push plate 544 is connected with a friction pad 6, and the driving plate 548 is connected with a clamping pad 7.

[0027] Specifically, the friction pad 6 and the clamping pad 7 are made of explosion-proof and flame-retardant fluororubber material, which can resist the corrosion of toluene, xylene and other paint solvents, and can also withstand the high temperature environment below 80 DEG C in the painting workshop, avoiding problems such as aging, cracking and adhesion after long-term use. The surface of the friction pad 6 and the clamping pad 7 is provided with a composite structure of diamond-shaped anti-skid lines and micro-convex particles, which can produce elastic deformation when clamping or inertial impact, avoiding material damage caused by hard contact.

[0028] As shown in Figures 8 to 9 The linkage adjusting assembly 8 is slidably connected to the round square rod 52, the linkage adjusting assembly 8 comprises a sliding bevel gear 81, the sliding bevel gear 81 is slidably connected to the round square rod 52, a fixed rod 33 is connected with a fixed bevel gear 82, and the sliding bevel gear 81 is slidably adjusted on the round square rod 52 through an elastic fixed pusher 83.

[0029] Specifically, the round square rod 52 adopts an integrated forging structure of square section and circular section, wherein the square section is in clearance fit with the inner hole of the sliding bevel gear 81, which not only limits the circumferential rotation of the sliding bevel gear 81 to ensure that it can only slide axially, but also avoids tooth surface wear caused by radial offset when the sliding bevel gear 81 is engaged through square guide, and the circular section is in rotary fit with the mounting plate 2 to reduce the friction resistance when the blocking frame 51 rotates, so that the linkage adjustment of the side guide assembly 3 and the blocking assembly 5 is more smooth. When the sliding bevel gear 81 and the fixed bevel gear 82 are completely engaged, the rotation of the round square rod 52 driven by the speed reducer 53 can synchronously drive the rotation of the fixed rod 33, realizing the linkage expansion of the side mounting guide frame 32 and the blocking frame 51, when the sliding bevel gear 81 and the fixed bevel gear 82 are separated, only the round square rod 52 rotates alone, which can control the expansion of the blocking frame 51 alone. The grading state of complete engagement and partial engagement, combined with the fine adjustment of the elastic fixed pusher 83, can accurately adapt to different scenes such as opening only the blocking frame 51 for one-side discharging, and fully opening the side mounting guide frame 32 and the blocking frame 51 for double-side mixing.

[0030] As shown in Figures 8 to 9 The elastic fixed pusher 83 comprises an adjusting sleeve 831, the adjusting sleeve 831 is threadedly connected to the round square rod 52, the adjusting sleeve 831 is in contact with the sliding bevel gear 81, the round square rod 52 is connected with a fixed ring 832, the fixed ring 832 is connected with a push spring 833, and the push spring 833 is in contact with the sliding bevel gear 81.

[0031] Specific, elastic fixed pusher 83 by screw rotation adjusting sleeve 831 to the sliding bevel gear 81 against the fixed bevel gear 82 to resist the meshing and push spring 833 elastic push sliding bevel gear 81 combination structure, forming a rigid positioning and elastic reset dual function, the sliding bevel gear 81 in the position controllable, in the disengagement state, adjusting sleeve 831 reverse rotation to move away from the sliding bevel gear 81 direction, sliding bevel gear 81 can be pushed by the push spring 833 and fixed bevel gear 82 disengagement, engagement state controllable.

[0032] As shown in Figures 8 to 9 , the round square rod 52 is connected with the blocking ring 9, the blocking ring 9 and the sliding bevel gear 81 contact.

[0033] Specific, blocking ring 9 is set on the round square rod 52 for blocking the sliding bevel gear 81, so that the sliding bevel gear 81 under the push of the adjusting sleeve 831 is stable and fixed bevel gear 82 intermeshing without displacement after sliding to the designated area on the round square rod 52.

[0034] As shown in Figures 1 to 4 , the side installation guide frame 32 is movably connected with the side guide roller 10, and the blocking frame 51 is movably connected with the area guide roller 11.

[0035] Specific, side guide roller 10 and area guide roller 11 and with the roller 31 on the mounting plate 2 form a quick guide discharge assembly, when the material is discharged, the roller 31 on the mounting plate 2 provides longitudinal conveying power, the side guide roller 10 forms a guide channel on both sides, converts the sliding friction of the material into rolling friction, and speeds up the discharge efficiency, the area guide roller 11 also plays an auxiliary discharge effect on the front and back surfaces, and assists the material to be unloaded from the mounting plate 2.

[0036] As shown in Figure 4 , the push plate 544 and the push plate 544 are fixedly installed with the pressure sensor 12.

[0037] Specifically, the pressure sensor 12 is embedded in the core contact area of the push plate 544 and the push plate 548 respectively, which can simultaneously collect the main pressing force of the push plate 544 and the adaptive pressing force of the push plate 548, accurately identify the local pressure concentration point, and control the electric push rod 543 through the controller to adjust the stroke and the angle of the rotating plate 546, so that the pressure is evenly distributed, the damage caused by the local excessive stress of the material is avoided, the sensor is pre-set with multiple pressure thresholds, and the electric push rod 543 forms a closed loop control, for the 18L small paint bucket, the low pressure threshold is triggered to avoid deformation of the barrel, for the 200L large paint bucket, the medium pressure threshold is triggered to ensure stable clamping, for the fragile workpiece or plastic auxiliary material box, the ultra-low pressure threshold is triggered, and the friction pad 6 and the clamping pad 7 are matched to realize flexible clamping, and when it is detected that the pressure exceeds the preset threshold 120%, the electric push rod 543 is automatically controlled to retract reversely, and the over-clamping risk is avoided in real time.

[0038] The working process of the technical scheme provided by the application is as follows: In use, when the RGV vehicle body 1 is positioned to the material to be loaded by the laser radar and the camera, the driving wheel drives the RGV vehicle body 1 to stop at the loading station, and the mounting plate 2 remains in a horizontal state. If the material is a paint bucket, the driving motor 43 in the receiving groove 41 is started, the output shaft drives the clamping plate 42 to rotate on the supporting plate, the rotation angle is adaptively adjusted according to the barrel diameter, the ratchet wheels 44 on both sides of the clamping plate 42 rotate synchronously with the clamping plate 42, the pawls 46 in the limiting plate 45 are clamped into the tooth grooves of the ratchet wheels 44 under the pushing force of the elastic sheet 47, and one-way locking is formed, until the rough surface of the clamping plate 42 is fixed to the barrel body. If the material is a workpiece tray or an auxiliary material box, the electric push rod 543 on the blocking frame 51 is elongated, the push plate 544 slides along the hidden groove 541, the rotating plate 546 is driven to rotate around the center rod 545 through the hinged shaft, the other end of the rotating plate 546 drives the push plate 548 to swing around the stabilizing rod 547, so that the push plate 548 and the push plate 544 form an included angle to adapt to the material corner, the friction pad 6 and the clamping pad 7 are attached to the surface of the material, and the pressure sensor 12 feedbacks the pressure value in real time to ensure that the pressing is not damaged; then the reduction motor 53 drives the round square rod 52 to rotate, drives the blocking frame 51 and the side mounting guide frame 32 to rotate to the center of the mounting plate 2, until the area guide roller 11 and the side guide roller 10 are attached to the front end of the material, and multi-directional limiting is completed; When transporting, the RGV car body 1 drives along the planned path under the guidance of the dispatching control system. When encountering conditions such as turning and sudden stopping, the card plate 42 has a reverse rotation tendency under the reaction force of the barrel body. The tooth surface of the ratchet wheel 44 extrudes the pawl 46, and the elastic sheet 47 is further compressed. The pawl 46 and the ratchet wheel 44 are more tightly clamped, and the loosening of the card plate 42 is prevented. The pressure sensor 12 detects a sudden increase in pressure and immediately sends a signal to the controller. The electric push rod 543 is retracted, and the partial pressure is released through the push plate 544, the rotating plate 546, and the adjustment plate 548. If the transported workpiece has a protrusion, the operator rotates the adjusting sleeve 831 on the round square rod 52. The adjusting sleeve 831 pushes the sliding bevel gear 81 along the square section of the round square rod 52 and partially engages with the fixed bevel gear 82 on the fixed rod 33. The reduction motor 53 drives the round square rod 52 to rotate, which drives the fixed rod 33 to rotate through bevel gear transmission, so that the side-mounted guide frame 32 and the blocking frame 51 are synchronously expanded / contracted. The side guide roller 10 and the area guide roller 11 are inclined and fit the protruding part of the material during expansion. The effective placement area of the installation plate 2 is expanded during expansion. When arriving at the unloading station, the anti-collision warning system confirms safety, and the RGV car body 1 is parked. According to the unloading direction, the operator reversely rotates the adjusting sleeve 831 of the corresponding side round square rod 52. The adjusting sleeve 831 moves away from the sliding bevel gear 81, and the sliding bevel gear 81 slides along the round square rod 52 under the elastic force of the push spring 833 and separates from the fixed bevel gear 82. The reduction motor 53 drives the round square rod 52 to rotate alone, which drives the blocking frame 51 and the side-mounted guide frame 32 to rotate and open until the blocking frame 51 and the side-mounted guide frame 32 fall into contact with the installation plate 2. Then the operator pushes the control lever 482, which slides along the sliding groove of the limiting plate 45. The connecting block 481 drives the pawl 46 to rotate around the limiting plate 45, and the pawl 46 separates from the ratchet wheel 44. The drive motor 43 is reversed, which drives the card plate 42 to retract into the storage slot 41 and aligns with the installation plate 2. The electric push rod 543 of the side limiting part 54 is retracted, the push plate 544 is reset, and the rotating plate 546 and the adjustment plate 548 are sequentially returned to the hidden groove 541. Then, the unloading of the material can be assisted by the roller 31, the side guide roller 10, and the area guide roller 11. During the whole process, the battery box, the control box, and the explosion-proof structure of each motor isolate sparks, and the fault diagnosis system monitors the motor speed and sensor data in real time. When an abnormality occurs, it immediately triggers an audible and visual alarm and locks the limiting assembly. The data management system records the clamping pressure, expansion angle, and other data of each transportation, which provides a basis for maintaining the system and ensures the continuous and stable operation of the equipment.

[0039] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0040] While the embodiments of the application have been shown and described herein, it is understood that various modifications, substitutions, changes, and variations can be made in the embodiments without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A painting plant explosion-proof RGV trolley for transporting materials, comprising an RGV trolley body (1), characterized in that, The RGV car body (1) is fixedly installed with a mounting plate (2), further comprising A side guiding assembly (3) is arranged on both sides of the mounting plate (2) and used for guiding the materials to quickly slide out of the designated area and preventing the materials from moving out from the left / right side; The side guiding assembly (3) comprises a roller (31) movably connected to the mounting plate (2), two side mounting guiding frames (32) mounted on the mounting plate (2), and a fixed rod (33) connected to the inside of each of the two side mounting guiding frames (32) and movably connected to the inside of the mounting plate (2). A side clamping assembly (4) is arranged on the mounting plate (2) and used for limiting the paint bucket to prevent it from moving out. A blocking assembly (5) is arranged on the mounting plate (2) and used for blocking the paint bucket to prevent it from moving out from the front / back side. The blocking assembly (5) comprises a blocking frame (51), a round square rod (52) connected to both sides of the blocking frame (51) and movably connected to the mounting plate (2), a speed reducer motor (53) connected to the round square rod (52), the speed reducer motor (53) fixedly installed with the mounting plate (2), and a side limiting piece (54) mounted on the blocking frame (51) and used for tightly limiting other transported materials.

2. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 1, characterized in that: The side clamping assembly (4) comprises a receiving groove (41) formed in the mounting plate (2), a clamping plate (42) rotatably connected to the receiving groove (41) through a support plate, a drive motor (43) fixedly installed in the inside of the receiving groove (41) of the clamping plate (42), the drive motor (43) connected to the clamping plate (42), a ratchet wheel (44) connected to both sides of the clamping plate (42), a limiting plate (45) connected to the inside of the receiving groove (41), a pawl (46) rotatably connected to the inside of the limiting plate (45) and engaged with the ratchet wheel (44), a tightly abutting spring piece (47) connected to the pawl (46), the tightly abutting spring piece (47) connected to the inner wall of the receiving groove (41), and the pawl (46) controlled to be engaged with the ratchet wheel (44) through a control member (48).

3. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 2, characterized in that: The control member (48) comprises a connecting block (481) connected to the pawl (46), and a control rod (482) slidably connected to the inside of the limiting plate (45) and connected to the connecting block (481).

4. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 1, characterized in that: The side limiting piece (54) includes a hidden groove (541) which is opened on the blocking frame (51), the fixed plate (542) is connected in the hidden groove (541), the electric push rod (543) is fixedly installed on the fixed plate (542), the electric push rod (543), the push plate (544) is connected to the telescopic end of the electric push rod (543), the center rod (545) is connected in the hidden groove (541), the rotating plate (546) is movably connected on the center rod (545), the push rod and the push plate (544) are movably connected, the stabilizing rod (547) is connected in the hidden groove (541), the stirring plate (548) is sleeved on the stabilizing rod (547), and the stirring plate (548) and the rotating plate (546) are movably connected.

5. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 4, characterized in that: The push plate (544) is connected with a friction pad (6), and the stirring plate (548) is connected with a clamping pad (7).

6. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 1, characterized in that: The round-square rod (52) is slidably connected with a linkage adjusting assembly (8), the linkage adjusting assembly (8) includes a sliding bevel gear (81), the sliding bevel gear (81) is slidably connected on the round-square rod (52), the fixed rod (33) is connected with a fixed bevel gear (82), and the sliding bevel gear (81) is slidably adjusted on the round-square rod (52) through the elastic fixed pusher (83).

7. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 6, characterized in that: The elastic fixed pusher (83) includes an adjusting sleeve (831), the adjusting sleeve (831) is threadedly connected on the round-square rod (52), the adjusting sleeve (831) is in contact with the sliding bevel gear (81), the round-square rod (52) is connected with a fixed ring (832), the fixed ring (832) is connected with a push spring (833), and the push spring (833) is in contact with the sliding bevel gear (81).

8. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 6, characterized in that: The round-square rod (52) is connected with a blocking ring (9), and the blocking ring (9) is in contact with the sliding bevel gear (81).

9. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 1, characterized in that: The side installation guide frame (32) is movably connected with a side guide roller (10), and the blocking frame (51) is movably connected with a region guide roller (11).

10. The explosion-proof RGV trolley for transporting materials in a painting plant according to claim 3, characterized in that: The stirring plate (548) and the push plate (544) are both fixedly installed with a pressure sensor (12).

Images