A material delivery device for a paint dripping apparatus

Abstract

This utility model discloses a material conveying device for a drip painting equipment, comprising: a buffer platform, a clamping and conveying mechanism, and a material transfer mechanism. The buffer platform has at least one loading buffer station and at least one unloading buffer station. The clamping and conveying mechanism includes a robotic arm and a robotic arm gripper assembly installed at the end of the robotic arm. The robotic arm gripper assembly is adapted to clamp workpieces and place them at the loading buffer station or to remove workpieces from the unloading buffer station. The material transfer mechanism has multiple drip painting loading stations spaced apart along its length. The material transfer mechanism is equipped with a material transfer clamping assembly, which is adapted to drive the material transfer clamping assembly to transfer workpieces between the drip painting loading stations and the loading buffer stations of the buffer platform, or between the drip painting loading stations and the unloading buffer stations of the buffer platform. This utility model can realize material transfer and buffering and production supply for multiple drip painting equipment, improving production efficiency and the utilization rate of drip painting equipment.

Description

Technical Field

[0001] This utility model relates to a material conveying device for a paint dripping equipment. Background Technology

[0002] Currently, stator varnishing is a crucial insulation process in motor manufacturing. Varnishing equipment requires a supporting material conveying system to improve production efficiency and product quality consistency.

[0003] After searching the existing technology, Chinese patent CN217590559U was found to disclose an internally supported stator handling robot and an automatic loading and unloading system for a paint-dispensing device. This patent uses an internally supported clamp to hold the stator from inside, and a camera for orientation recognition to achieve material handling between the stator receiving trolley area, the stator unloading position, and the stator retrieving position after paint dispensing. However, the existing technology has the following shortcomings: using a single handling robot to handle material transfer between all stations makes it difficult to meet the needs of multiple paint-dispensing stations operating simultaneously, thus limiting the improvement of production efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a material conveying device for paint dripping equipment. It can realize material transfer and buffering and production material supply for multiple paint dripping equipment, thereby improving production efficiency and utilization rate of paint dripping equipment.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a material conveying device for a paint dripping equipment, comprising:

[0006] A buffer station, wherein the buffer station is provided with at least one loading buffer station and at least one unloading buffer station;

[0007] A clamping and conveying mechanism, comprising a robotic arm and a robotic arm gripper assembly mounted at the end of the robotic arm, the robotic arm gripper assembly being adapted to clamp a workpiece and place it on the loading buffer station or to remove a workpiece from the unloading buffer station;

[0008] A material transfer mechanism is provided, wherein a plurality of paint-feeding stations are spaced apart along its length, and the material transfer mechanism is provided with a material transfer clamping assembly. The material transfer mechanism is adapted to drive the material transfer clamping assembly to transfer the workpiece between the paint-feeding stations and the loading and unloading buffer stations of the buffer platform or between the paint-feeding stations and the unloading buffer stations of the buffer platform.

[0009] Furthermore, in order to accommodate workpieces of different sizes and specifications, the buffer platform includes a support platform and at least two positioning fixtures, with a pair of positioning fixtures corresponding to the loading buffer station and the unloading buffer station, respectively.

[0010] The positioning fixture includes:

[0011] Two guide blocks are arranged opposite each other on the support platform. Each of the two guide blocks has an inwardly inclined guide slope on its inner side and a guide groove is formed on the guide slope.

[0012] A pair of positioning blocks, wherein the positioning blocks are detachably and slidably fitted in the corresponding guide grooves, and the two positioning blocks are arranged opposite to each other and form a workpiece receiving space therebetween;

[0013] The loading buffer station is located between the first pair of positioning blocks, and the unloading buffer station is located between the second pair of positioning blocks.

[0014] Furthermore, in order to ensure that the position of the thinner workpiece is fixed during the process, the buffer platform also includes at least one auxiliary clamping mechanism. The auxiliary clamping mechanism is disposed above the positioning fixture. The auxiliary clamping mechanism includes a telescopic drive source mounted on the support platform and a clamping block connected to the telescopic end of the telescopic drive source. The telescopic drive source is adapted to drive the clamping block to extend downward and clamp the workpiece placed in the positioning fixture.

[0015] Furthermore, the buffer station also includes at least one detection sensor, which is disposed on one side of the loading buffer station and / or one side of the unloading buffer station, and the detection sensor is adapted to detect the presence or absence of the workpiece.

[0016] Furthermore, the material transfer mechanism includes:

[0017] A horizontal moving assembly is provided with at least one guide rail extending along the arrangement direction of the paint dispensing station and a sliding seat mounted on the guide rail. The horizontal moving assembly is adapted to drive the sliding seat to move linearly along the guide rail.

[0018] A feeding mechanism, comprising at least one feeding guide rail mounted on the sliding seat and a feeding slider mounted on the feeding guide rail, the feeding mechanism being adapted to drive the feeding slider to move in a horizontal direction perpendicular to the moving direction of the horizontal moving component;

[0019] A lifting mechanism, comprising at least one vertically arranged lifting guide rail mounted on the feed slider, a lifting slide mounted on the lifting guide rail, and a lifting driver, wherein the lifting driver is adapted to drive the lifting slide to move up and down in the vertical direction;

[0020] A connecting rod is fixedly installed on the lifting slide.

[0021] The material transfer clamping assembly is located at the end of the connecting rod.

[0022] Furthermore, the horizontal moving assembly also includes a rack arranged along the extension direction of the guide rail, a horizontal drive source mounted on the sliding seat, and a drive gear that is pulsatorically connected to the horizontal drive source;

[0023] The horizontal drive source is adapted to drive the sliding seat to move along the guide rail by meshing the drive gear with the rack.

[0024] Furthermore, the feeding mechanism also includes a lead screw rotatably mounted on the sliding seat, a nut fixed on the feed slider and threadedly engaged with the lead screw, and a feed drive source mounted on the sliding seat and drivenly connected to the lead screw;

[0025] The feed drive source is adapted to drive the lead screw to rotate, thereby causing the feed slider to move along the feed guide rail.

[0026] Furthermore, the material transfer clamping assembly includes:

[0027] An outward-expanding clamping cylinder is provided with at least two relatively movable clamping fingers. The outward-expanding clamping cylinder is adapted to drive the clamping fingers to expand outward to clamp the workpiece from the inside of the workpiece.

[0028] Furthermore, the clamping and transporting mechanism also includes:

[0029] A barcode reader, mounted on the robotic arm, is adapted to identify identification codes on a workpiece.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects:

[0031] During operation, the robotic arm of the clamping and transporting mechanism first grabs the workpiece to be processed from the external conveyor line. After the robotic arm's gripper assembly holds the workpiece, it moves it to the loading buffer station on the buffer platform and places it there. When there is a workpiece at the loading buffer station, the material transfer clamping assembly of the material transfer mechanism moves above the loading buffer station, lowers via the lifting mechanism, and clamps the workpiece. It then sequentially transfers the workpiece to each paint-spraying loading station for paint-spraying operations. After the paint-spraying process is completed at the paint-spraying loading station, the material transfer mechanism removes the workpiece from the station and transfers it to the unloading buffer station on the buffer platform. At this point, the robotic arm of the clamping and transporting mechanism moves to the unloading buffer station, where the gripper assembly clamps the paint-sprayed workpiece and transports it to the next process or the finished product conveyor line. During this process, while the material transfer mechanism is transferring workpieces between the paint dripping stations, the clamping and handling mechanism can simultaneously perform new workpiece loading or finished product unloading operations. When the clamping and handling mechanism is performing workpiece handling, the material transfer mechanism continues to transfer other workpieces between the paint dripping stations. The actions of the clamping and handling mechanism and the material transfer mechanism are independent of each other and performed synchronously, achieving continuous operation through the buffering effect of the buffer platform.

[0032] The buffer station includes a support platform and a pair of positioning fixtures. The positioning fixtures form a workpiece receiving space through the guide slopes and guide grooves of two guide blocks and a pair of detachable positioning blocks, ensuring adaptability when changing workpieces of different specifications. The auxiliary clamping mechanism drives the clamping blocks downward to clamp the workpiece through a telescopic drive source, preventing thinner workpieces from shifting or tipping over during placement. The detection sensors are set on one side of the loading buffer station and the unloading buffer station to monitor the presence or absence of workpieces in real time.

[0033] In summary, this utility model, by setting up independent buffer platforms, clamping and handling mechanisms, and material transfer mechanisms, forms a material conveying system with clear division of labor and collaborative operation, solving the problems of low workpiece handling efficiency and long waiting time in paint dripping equipment, and realizing continuous and efficient material conveying operations. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the material conveying device for a paint dripping equipment according to this utility model. Figure 1 ;

[0035] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0036] Figure 3 This is a three-dimensional structural diagram of the material conveying device for a paint dripping equipment according to this utility model. Figure 2 ;

[0037] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0038] Figure 5 for Figure 3 A magnified view of part C in the middle;

[0039] Figure 6 This is a three-dimensional structural diagram of the material conveying device for a paint dripping equipment according to this utility model. Figure 3 :

[0040] Figure 7 for Figure 6 A magnified view of part D in the middle;

[0041] Figure 8 This is a front view of the material conveying device for a paint dripping equipment according to this utility model. Detailed Implementation

[0042] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0043] like Figure 1-8 As shown, a material conveying device for a paint dripping equipment includes:

[0044] The buffer station has one loading buffer station and one unloading buffer station.

[0045] The clamping and handling mechanism includes a robotic arm 21 and a robotic arm gripper assembly 22 installed at the end of the robotic arm 21. The robotic arm gripper assembly 22 is adapted to clamp the workpiece and place it in the loading buffer station or to remove the workpiece from the unloading buffer station.

[0046] The material transfer mechanism has six paint feeding stations spaced apart along its length. The material transfer mechanism is equipped with a material transfer clamping component 32. The material transfer mechanism is adapted to drive the material transfer clamping component 32 to transfer the workpiece between the paint feeding station and the loading buffer station of the buffer table or between the paint feeding station and the unloading buffer station of the buffer table.

[0047] In this embodiment, as Figure 1As shown, the robotic arm 21 of the clamping and transporting mechanism first grabs the workpiece to be processed from the external conveyor line. After the robotic arm gripper assembly 22 clamps the workpiece, the robotic arm 21 transports the workpiece to the loading buffer station of the buffer platform and places it there. When there is a workpiece at the loading buffer station, the material transfer clamping assembly 32 of the material transfer mechanism moves to above the loading buffer station, lowers through the lifting mechanism, and clamps the workpiece. Then, it is sequentially transferred to each paint-spraying loading station for paint-spraying operations. After the paint-spraying loading station completes the paint-spraying process, the material transfer mechanism removes the workpiece from the paint-spraying loading station and transfers it to the unloading buffer station of the buffer platform. At this time, the robotic arm 21 of the clamping and transporting mechanism moves to the unloading buffer station, and the robotic arm gripper assembly 22 clamps the workpiece that has completed paint-spraying and transports it to the next process or the finished product conveyor line. During this process, while the material transfer mechanism is transferring workpieces between the paint dripping stations, the clamping and handling mechanism can simultaneously perform new workpiece loading or finished product unloading operations. When the clamping and handling mechanism is performing workpiece handling, the material transfer mechanism continues to transfer other workpieces between the paint dripping stations. The actions of the clamping and handling mechanism and the material transfer mechanism are independent of each other and performed synchronously, achieving continuous operation through the buffering effect of the buffer platform.

[0048] Specifically, such as Figure 2 As shown, the buffer station includes a support platform 13 and a pair of positioning clamps 14, which correspond to the loading buffer station and the unloading buffer station, respectively.

[0049] Positioning fixture 14 includes:

[0050] Two guide blocks 142 are arranged opposite each other on the support platform 13. Each of the two guide blocks 142 has an inwardly inclined guide slope 143 on its inner side, and a guide groove 144 is provided on the guide slope 143.

[0051] A pair of positioning blocks 145, which are detachably and slidably fitted in corresponding guide grooves 144, are arranged opposite to each other and form a workpiece receiving space therebetween.

[0052] The loading buffer station is located between the first pair of positioning blocks 145, and the unloading buffer station is located between the second pair of positioning blocks 145.

[0053] Specifically, such as Figure 2 As shown, the buffer platform also includes two auxiliary clamping mechanisms 15. The auxiliary clamping mechanisms 15 are arranged above the positioning fixture 14. The auxiliary clamping mechanism 15 includes a telescopic drive source 151 mounted on the support platform 13 and a clamping block 152 connected to the telescopic end of the telescopic drive source 151. The telescopic drive source 151 is adapted to drive the clamping block 152 to extend downward and clamp the workpiece placed in the positioning fixture 14.

[0054] Specifically, such as Figure 2 As shown, the buffer station also includes two detection sensors 16, which are set on one side of the loading buffer station and one side of the unloading buffer station. The detection sensors 16 are suitable for detecting the presence or absence of workpieces.

[0055] In this embodiment, as Figure 2 As shown, the guide slope 143 formed on the inner side of the guide block 142 is inclined at a certain angle to the vertical direction. The positioning block 145 is embedded in the guide groove 144 through the protrusion on its back side. When the workpiece is placed, the inner sides of the two positioning blocks 145 contact the outer wall of the workpiece. The inclination angle of the guide slope 143 causes the positioning blocks 145 to generate an inward component force under the action of gravity, thereby forming a radial positioning constraint on the workpiece. In some embodiments, the number of positioning fixtures 14 is not limited to one pair, and multiple pairs can be set according to the number of buffer stations required.

[0056] In this embodiment, the telescopic drive source 151 of the auxiliary clamping mechanism 15 is a cylinder, and the piston rod end of the cylinder is fixedly connected to the clamping block 152. When the workpiece is positioned by the positioning block 145, the piston rod of the cylinder extends, driving the clamping block 152 to move downward until it contacts the top of the workpiece and applies pressure, thus fixing the workpiece in conjunction with the radial positioning of the positioning block 145. In some embodiments, the telescopic drive source 151 may also be a hydraulic cylinder or an electric push rod. The auxiliary clamping mechanism 15 also includes a pressure regulating valve, which is set on the air inlet pipe of the cylinder, and controls the clamping force of the clamping block 152 on the workpiece by adjusting the air pressure entering the cylinder.

[0057] This embodiment also includes a controller. The detection sensor 16 is a photoelectric sensor in this embodiment, mounted on the support platform 13 via a sensor bracket. When a workpiece is placed in the buffer station, the detection beam of the photoelectric sensor is blocked by the workpiece, and a detection signal is output to the controller. In this embodiment, the controller is a PLC controller, electrically connected to the detection sensor 16 and the telescopic drive source 151. The PLC controller receives the detection signal from the detection sensor 16. When a workpiece is detected in the loading buffer station, it controls the corresponding telescopic drive source 151 to activate the clamping block 152 to clamp the workpiece; or when no workpiece is detected in the unloading buffer station, it sends a signal allowing the material transfer mechanism to move the finished paint-spraying workpiece to the unloading buffer station. In some embodiments, the detection sensor 16 may also be a proximity sensor or a laser sensor.

[0058] Specifically, such as Figure 1 , Figure 4 and Figure 7 As shown, the material transfer mechanism includes:

[0059] The horizontal moving assembly is provided with two guide rails 331 extending along the direction of the paint feeding station and a sliding seat 332 mounted on the guide rails 331. The horizontal moving assembly is adapted to drive the sliding seat 332 to move linearly along the guide rails 331.

[0060] The feeding mechanism includes two feed guide rails 341 mounted on the slide seat 332 and a feed slider 342 mounted on the feed guide rails 341. The feeding mechanism is adapted to drive the feed slider 342 to move in a horizontal direction perpendicular to the moving direction of the horizontal moving component.

[0061] The lifting mechanism includes two vertically arranged lifting guide rails 353 mounted on the feed slider 342, a lifting slide 352 mounted on the lifting guide rails 353, and a lifting driver 351. The lifting driver 351 is adapted to drive the lifting slide 352 to move up and down in the vertical direction.

[0062] Connecting rod 36 is fixedly installed on lifting slide 352;

[0063] The material transfer clamping assembly 32 is located at the end of the connecting rod 36.

[0064] Specifically, such as Figure 3 and Figure 8 As shown, the horizontal moving assembly also includes a rack 333 arranged along the extending direction of the guide rail 331, a horizontal drive source 335 mounted on the sliding seat 332, and a drive gear 334 that is connected to the horizontal drive source 335 in a transmission manner.

[0065] The horizontal drive source 335 is adapted to drive the sliding seat 332 to move along the guide rail 331 by meshing with the rack 333 via the drive gear 334.

[0066] Specifically, such as Figure 8 As shown, the feeding mechanism also includes a lead screw 343 rotatably mounted on the sliding seat 332, a nut 344 fixed on the feed slider 342 and threadedly engaged with the lead screw 343, and a feed drive source 345 mounted on the sliding seat 332 and drivenly connected to the lead screw 343.

[0067] The feed drive source 345 is adapted to drive the lead screw 343 to rotate, thereby causing the feed slider 342 to move along the feed guide rail 341.

[0068] In this embodiment, as Figure 1 , Figure 3 , Figure 4 and Figure 8As shown, in this embodiment, the guide rail 331 of the horizontal moving component consists of two parallel linear guide rails. The sliding seat 332 slides along the guide rail 331 via a slider. In this embodiment, the horizontal drive source 335 is a servo motor, which is fixed to the sliding seat 332 via a motor mount. The drive gear 334 is mounted on the output shaft of the servo motor and meshes with the rack 333. When the servo motor rotates, the drive gear 334 rolls along the rack 333, driving the sliding seat 332 and its feeding mechanism, lifting mechanism, and material transfer clamping assembly 32 to move horizontally linearly along the guide rail 331, thus achieving movement and positioning between each paint-feeding station. In some embodiments, the horizontal drive source 335 may also be a stepper motor or an AC motor with a reducer.

[0069] In this embodiment, the feed guide rails 341 of the feeding mechanism are two parallel linear guide rails. The feed guide rails 341 are fixed to the upper surface of the sliding seat 332 by a guide rail mounting plate, and the extension direction of the feed guide rails 341 is perpendicular to the extension direction of the guide rails 332. The lead screw 343 is rotatably supported on the sliding seat 332 by a bearing seat, and the nut 344 is a ball screw nut, which is fixed to the bottom of the feed slider 342. In this embodiment, the feed drive source 345 is a servo motor, which is connected to the lead screw 343 by a coupling. When the servo motor rotates, the rotational motion is converted into linear motion of the feed slider 342 along the feed guide rails 341 through the threaded transmission between the lead screw 343 and the nut 344, realizing the forward and backward movement of the material transfer clamping assembly 32 in a direction perpendicular to the arrangement direction of the paint dripping station. In some embodiments, the feed drive source 345 may also be a stepper motor.

[0070] In this embodiment, the lifting guide rails 353 of the lifting mechanism are two vertically installed linear guide rails, which are fixed to the feed slider 342 by a guide rail mounting bracket. The lifting slide 352 slides in conjunction with the lifting guide rails 353 via a slider, and the connecting rod 36 is fixedly connected to the front end face of the lifting slide 352 by bolts. In this embodiment, the lifting driver 351 is a cylinder, and the piston rod of the cylinder is connected to the lifting slide 352. When the piston rod of the cylinder extends or retracts, it directly drives the lifting slide 352 to move up and down along the lifting guide rails 353, thereby realizing the lifting action of the material transfer clamping assembly 32. In some embodiments, the lifting driver 351 may also be a hydraulic cylinder or an electric push rod.

[0071] Specifically, such as Figure 1 As shown, the material transfer clamping assembly 32 includes:

[0072] An outward-expanding clamping cylinder is equipped with three relatively movable clamping fingers. The outward-expanding clamping cylinder is suitable for driving the clamping fingers to expand outward to clamp the workpiece from the inside.

[0073] In this embodiment, as Figure 1 and Figure 7 As shown, the externally expanding clamping cylinder of the material transfer clamping assembly 32 in this embodiment is an internally supporting cylinder. The cylinder body of the internally supporting cylinder is fixedly connected to the end of the connecting rod 36 via a mounting flange. The externally expanding clamping cylinder has three clamping fingers. When the cylinder piston extends, the clamping fingers expand outward through a linkage mechanism. The workpiece is annular, and the clamping fingers are inserted into the inner hole of the workpiece. Through the outward expansion action, the outer side of the clamping fingers contacts the inner wall of the workpiece and applies radial pressure, thereby clamping and fixing the workpiece from the inside. The material transfer clamping assembly 32 also includes a pressure regulating valve, which is set on the air inlet pipe of the externally expanding clamping cylinder. The expansion force of the clamping fingers is controlled by adjusting the air pressure entering the cylinder. In some embodiments, the number of clamping fingers is not limited to three; two or three pairs of clamping fingers can be provided depending on the workpiece structure.

[0074] The outward-expanding clamping cylinder is also equipped with a position-holding solenoid valve, which is located in the air path of the cylinder. This solenoid valve is a center-sealed type. When the equipment is operating normally, the position-holding solenoid valve is energized and open, ensuring unobstructed airflow. When the equipment is powered off or undergoes an emergency shutdown, the solenoid valve automatically switches to a closed state, simultaneously sealing both the air inlet and outlet of the outward-expanding clamping cylinder. This maintains constant pressure within the cylinder, keeping the clamping fingers in their current clamping position and preventing the workpiece from falling due to loss of clamping force. The material transfer clamping assembly 32 also includes a laser rangefinder sensor. This sensor is mounted on the side of the outward-expanding clamping cylinder, and its measuring beam is directed towards the workpiece placement position to detect the workpiece's positional deviation relative to the clamping fingers. The detection signal is transmitted to the PLC controller, which then controls the servo motor of the material transfer mechanism to perform position compensation adjustments based on the positional deviation signal.

[0075] Specifically, such as Figure 1 and Figure 5 As shown, the clamping and conveying mechanism also includes:

[0076] The barcode reader 23 is mounted on the robotic arm 21 and is suitable for identifying the identification code on the workpiece.

[0077] In this embodiment, as Figure 1 and Figure 5As shown, the robotic arm 21 of the clamping and handling mechanism is a six-axis industrial robot in this embodiment. The barcode reader 23 is a QR code scanner, which is fixed to the end segment of the robotic arm 21 via a reader mounting bracket. The scanning window of the barcode reader 23 faces the clamping space of the robotic arm gripper assembly 22. When the robotic arm 21 moves the robotic arm gripper assembly 22 close to the workpiece, the barcode reader 23 scans and identifies the QR code markings on the workpiece surface to obtain the workpiece's product model, batch number, and process information. In some embodiments, the barcode reader 23 can also be a barcode scanner or an RFID reader, with the corresponding identification code being a barcode or RFID tag.

[0078] The clamping and handling mechanism also includes a tension / compression pressure sensor 221, which is located at the connection between the end flange of the robotic arm 21 and the robotic arm gripper assembly 22. When the robotic arm gripper assembly 22 clamps the workpiece and lowers it, the reaction force generated by the bottom of the workpiece contacting the placement position is transmitted to the tension / compression pressure sensor 221 through the robotic arm gripper assembly 22. The tension / compression pressure sensor 221 transmits the detected pressure value signal to the PLC controller. The PLC controller has a preset pressure threshold range. When the detected pressure value is within the normal range, it indicates that the workpiece is in place; when the pressure value exceeds the threshold range, the PLC controller determines that the workpiece placement position is abnormal, immediately controls the robotic arm 21 to stop its descent and issues an alarm signal, awaiting operator intervention.

[0079] In this embodiment, the robotic arm gripper assembly 22 is an internally supporting gripper cylinder, which is connected to a tension / compression pressure sensor 221 via a connecting flange. The internally supporting gripper cylinder is equipped with a pressure regulating valve installed on the cylinder's air inlet pipe, controlling the gripper's clamping force by adjusting the air pressure. The internally supporting gripper cylinder also features a position-holding solenoid valve, a center-sealed type, located in the cylinder's air path. When the equipment is powered off or undergoes an emergency shutdown, the position-holding solenoid valve automatically closes the air path, maintaining the gripper's current clamping state and preventing the workpiece from falling. In some embodiments, the robotic arm 21 can also be a four-axis or five-axis robot, and the robotic arm gripper assembly 22 can be an externally clamping pneumatic gripper or an electric gripper.

[0080] During operation, the robotic arm 21 first clamps the workpiece to be processed from the external conveyor line and identifies the workpiece information through the code reader 23. Then, the workpiece is placed in the loading buffer station of the buffer platform. After the detection sensor 16 detects the workpiece, the telescopic drive source 151 of the auxiliary clamping mechanism 15 actuates to clamp the workpiece. The material transfer mechanism moves the material transfer clamping component 32 to the loading buffer station. After the outward-expanding clamping cylinder of the material transfer clamping component 32 clamps the workpiece, it is sequentially transferred to each paint-feeding loading station for paint-feeding operation. After the paint-feeding is completed, the material transfer mechanism transfers the workpiece to the unloading buffer station. The robotic arm 21 then takes out the paint-feeding completed workpiece from the unloading buffer station and transports it to the next process. In some embodiments, the buffer platform can be equipped with multiple loading buffer stations and unloading buffer stations to realize continuous operation of multiple workpieces. The number of paint-feeding loading stations of the material transfer mechanism can also be adjusted and configured according to the paint-feeding process requirements.

[0081] The robotic arm 21 is specifically a FANUC 6-axis robot with a load capacity of 120Kg and an arm span diameter of 3100mm;

[0082] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A material delivery device for a paint dripping apparatus, characterized in that, include: A buffer station, wherein the buffer station is provided with at least one loading buffer station and at least one unloading buffer station; The clamping and handling mechanism includes a robotic arm (21) and a robotic arm gripper assembly (22) installed at the end of the robotic arm (21). The robotic arm gripper assembly (22) is adapted to clamp a workpiece and place it on the loading buffer station or to remove the workpiece from the unloading buffer station. The material transfer mechanism is provided with multiple paint feeding stations spaced apart along its length. The material transfer mechanism is provided with a material transfer clamping assembly (32). The material transfer mechanism is adapted to drive the material transfer clamping assembly (32) to transfer the workpiece between the paint feeding station and the loading buffer station of the buffer platform or between the paint feeding station and the unloading buffer station of the buffer platform.

2. The material conveying device for a paint dripping equipment according to claim 1, characterized in that: The buffer station includes a support platform (13) and at least two positioning fixtures (14), and the pair of positioning fixtures (14) correspond to the loading buffer station and the unloading buffer station respectively; The positioning fixture (14) includes: Two guide blocks (142) are arranged opposite each other on the support platform (13). Each of the two guide blocks (142) has an inwardly inclined guide slope (143) on its inner side and a guide groove (144) is provided on the guide slope (143). A pair of positioning blocks (145) are detachably and slidably fitted in the corresponding guide grooves (144). The two positioning blocks (145) are arranged opposite to each other and form a workpiece receiving space therebetween. The loading buffer station is located between the first pair of positioning blocks (145), and the unloading buffer station is located between the second pair of positioning blocks (145).

3. The material conveying device for a paint dripping equipment according to claim 2, characterized in that: The buffer platform also includes at least one auxiliary clamping mechanism (15), which is disposed above the positioning fixture (14). The auxiliary clamping mechanism (15) includes a telescopic drive source (151) mounted on the support platform (13) and a clamping block (152) connected to the telescopic end of the telescopic drive source (151). The telescopic drive source (151) is adapted to drive the clamping block (152) to extend downward and clamp the workpiece placed in the positioning fixture (14).

4. The material conveying device for a paint dripping equipment according to claim 1, characterized in that: The buffer station also includes at least one detection sensor (16), which is disposed on one side of the loading buffer station and / or one side of the unloading buffer station, and is adapted to detect the presence or absence of the workpiece.

5. The material conveying device for a paint dripping equipment according to claim 1, characterized in that: The material transfer mechanism includes: A horizontal moving assembly is provided with at least one guide rail (331) extending along the arrangement direction of the paint feeding station and a sliding seat (332) mounted on the guide rail (331). The horizontal moving assembly is adapted to drive the sliding seat (332) to move linearly along the guide rail (331). The feeding mechanism includes at least one feed guide rail (341) mounted on the slide seat (332) and a feed slider (342) mounted on the feed guide rail (341), the feeding mechanism being adapted to drive the feed slider (342) to move in a horizontal direction perpendicular to the moving direction of the horizontal moving component; The lifting mechanism includes at least one vertically arranged lifting guide rail (353) mounted on the feed slider (342), a lifting slide (352) mounted on the lifting guide rail (353), and a lifting driver (351), the lifting driver (351) being adapted to drive the lifting slide (352) to move up and down in the vertical direction; A connecting rod (36) is fixedly installed on the lifting slide (352); The material transfer clamping assembly (32) is located at the end of the connecting rod (36).

6. The material conveying device for a paint dripping equipment according to claim 5, characterized in that: The horizontal moving assembly also includes a rack (333) arranged along the extension direction of the guide rail (331), a horizontal drive source (335) mounted on the sliding seat (332), and a drive gear (334) that is pulsatorically connected to the horizontal drive source (335). The horizontal drive source (335) is adapted to drive the sliding seat (332) to move along the guide rail (331) by meshing with the rack (333) through the drive gear (334).

7. The material conveying device for a paint dripping equipment according to claim 5, characterized in that: The feeding mechanism also includes a lead screw (343) rotatably mounted on the sliding seat (332), a nut (344) fixed on the feed slider (342) and threadedly engaged with the lead screw (343), and a feed drive source (345) mounted on the sliding seat (332) and drivenly connected to the lead screw (343). The feed drive source (345) is adapted to drive the lead screw (343) to rotate, thereby causing the feed slider (342) to move along the feed guide rail (341).

8. The material conveying device for a paint dripping equipment according to claim 5, characterized in that: The material transfer clamping assembly (32) includes: An outward-expanding clamping cylinder is provided with at least two relatively movable clamping fingers. The outward-expanding clamping cylinder is adapted to drive the clamping fingers to expand outward to clamp the workpiece from the inside of the workpiece.

9. The material conveying device for a paint dripping equipment according to claim 1, characterized in that: The clamping and transporting mechanism further includes: a reader (23) mounted on the robot arm (21), the reader (23) being adapted to recognize an identification code on the workpiece.

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