An end effector of an automatic sampling robot for negative electrode powder material

Abstract

The utility model discloses a kind of negative electrode powder material automatic sampling robot end effector, it is related to negative electrode material sampling technical field, including fixed frame, sampling tube is placed in the top of the fixed frame, gear is placed in the inside of the fixed frame, the front and back of the fixed frame are inlaid with bearing one. The negative electrode powder material automatic sampling robot end effector, in the process of using, can be rotated by the operation of servo motor one to drive gear, the position of sampling tube can be adjusted by gear, so the length of sampling tube can be adjusted under the cooperation of robot, so that different sampling depth is better collected, by being provided with servo motor two, the rotation of rotating shaft and spiral auger can be driven, so that the material in the position of pipe opening is better output upward by spiral auger after reaching sampling depth, and then guided by guide cover and discharge pipe and collected.

Description

Technical Field

[0001] This utility model relates to the field of negative electrode material sampling technology, specifically to an end effector for an automatic sampling robot for negative electrode powder materials. Background Technology

[0002] In the manufacturing process of new energy products such as lithium-ion batteries, the quality consistency of negative electrode powder materials (such as graphite, silicon-carbon composite materials, etc.) is crucial. During the production process, it is necessary to frequently and at multiple points sample the powder materials to test key indicators such as composition, particle size, and moisture content. Currently, traditional sampling methods mostly rely on manual operation. Operators use tools such as sampling tubes to take samples at different points in the silo or bin. However, manual sampling is slow and cannot meet the pace of modern high-speed production lines. Furthermore, the powder materials are prone to generating dust during the sampling process, which may be harmful to the health of operators if inhaled. Secondly, the depth, angle, and amount of manual sampling are difficult to control precisely, resulting in poor sample representativeness and affecting the accuracy of test results. Manual operation may introduce external contaminants or cause cross-contamination between different sampling points. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides an end effector for an automatic sampling robot for negative electrode powder materials, which has the advantages of good sampling and cleaning effects.

[0005] (II) Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an end effector for an automatic sampling robot for negative electrode powder materials, including a fixed frame, on which a sampling tube is placed.

[0007] The fixed frame contains a gear, and bearings are inlaid on both the front and back sides of the fixed frame. The outer surfaces of the front and rear fixed ends of the gear are fixedly connected to the inner rings of the two bearings, respectively. A servo motor is fixedly installed on the back of the fixed frame by bolts, and the output end of the servo motor is fixedly connected to the rear end of the gear. A through slot is provided on the top of the fixed frame.

[0008] The upper surface of the fixing frame is fixedly mounted with a top cover by bolts, and the top cover is fitted over the outside of the sampling tube. The bottom surface of the sampling tube has equally spaced toothed grooves, and the gears mesh with the toothed grooves. Guide grooves are provided on both the left and right sides of the sampling tube. Two guide strips are fixedly installed on the inner side wall of the top cover, and the guide strips extend into the interior of the guide grooves.

[0009] The left end of the sampling tube is fixedly mounted with a mounting base by bolts. A bearing 2 is embedded in the middle of the mounting base. A servo motor 2 is fixedly mounted on the left side of the mounting base by bolts. A rotating shaft is fixedly mounted on the output end of the servo motor 2. The end of the rotating shaft away from the servo motor 2 passes through the bearing 2 and extends into the interior of the sampling tube. The outer surface of the rotating shaft is fixedly connected to the inner ring of the bearing 2. A spiral auger is fixedly mounted on the outer surface of the rotating shaft inside the sampling tube.

[0010] Furthermore, a connector is fixedly installed on the front side of the mounting bracket.

[0011] By adopting the above technical solution, the connection is made with the end shaft of the robot arm through connectors and couplings.

[0012] Furthermore, a fixing sleeve is fixedly installed on the right side of the fixing frame, and an air duct is fixedly installed inside the fixing sleeve. Four blowers are fixedly connected to the inner arc surface of the air duct, and an air inlet pipe is fixedly connected to the top of the air duct. An air inlet pipe is fixedly connected to the left end of the sampling tube.

[0013] By adopting the above technical solution, it is possible to effectively connect with external air pump equipment and perform high-pressure cleaning on the exterior and interior of the sampling tube.

[0014] Furthermore, a discharge port is provided on the lower surface of the left end of the sampling tube, and a guide cover is fixedly installed inside the discharge port by bolts.

[0015] By adopting the above technical solution, the powder can be better guided during discharge, and the upper part of the sampling tube can be better maintained by opening the guide cover.

[0016] Furthermore, an electrically controlled valve is fixedly installed at the bottom of the material guide cover, and the bottom of the electrically controlled valve is fixedly connected to a discharge pipe.

[0017] By adopting the above technical solution, the opening and closing of the sampling path can be better controlled, closing it during sampling and opening it when the sampling is completed and the output is collected.

[0018] Furthermore, the input terminals of both servo motor one and servo motor two are electrically connected to the circuit board via a motor controller.

[0019] By adopting the above technical solution, the start-stop, running direction, running angle and running speed of servo motor one and servo motor two can be better controlled through the circuit board and controller.

[0020] (III) Beneficial Effects

[0021] Compared with existing technologies, the end effector of this automatic sampling robot for negative electrode powder materials has the following advantages:

[0022] Beneficial effects:

[0023] This invention features a servo motor that drives a gear to rotate during operation. The gear adjusts the position of the sampling tube, allowing for adjustable insertion length with the assistance of a robot. This enables better sampling at different depths. A second servo motor drives a rotating shaft and a spiral auger to rotate, ensuring that after reaching the sampling depth, the auger outputs material upwards from the tube opening. The material is then guided through a guide hood and discharge pipe for collection. After sampling, high-pressure gas is supplied via an external air pump and connected to inlet pipes one and two through a conduit. The high-pressure gas enters the duct and is blown out through four blowers, thus agitating the grooves at the bottom of the sampling tube. This prevents powdery materials adhering to the grooves after sampling from affecting sampling accuracy. The high-pressure gas also cleans the inner walls of the material guide hood and outlet pipe after sampling. Furthermore, after the electric control valve is closed, the high-pressure gas passes through the inside of the sampling tube and, in conjunction with the auger rotation, effectively cleans the interior, improving the sampling and cleaning efficiency of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the spiral auger structure of this utility model;

[0026] Figure 3 This is an exploded view of the internal structure of the fixing frame of this utility model;

[0027] Figure 4 This is an exploded view of the external structure of the sampling tube of this utility model;

[0028] Figure 5 This is a schematic diagram of the duct structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the top cover structure of this utility model.

[0030] In the diagram: 1-Fixed frame, 2-Connector, 3-Sampling tube, 4-Guide groove, 5-Top cover, 6-Fixed seat, 7-Servo motor II, 8-Electrically controlled valve, 9-Gear groove, 10-Rotating shaft, 11-Screw auger, 12-Gear, 13-Servo motor I, 14-Fixed sleeve, 15-Through groove, 16-Bearing I, 17-Bearing II, 18-Discharge pipe, 19-Guide cover, 20-Discharge port, 21-Air inlet pipe II, 22-Air duct, 23-Blower head, 24-Air inlet pipe I, 25-Guide strip. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This utility model provides a technical solution: an end effector for an automatic sampling robot for negative electrode powder materials, including a fixed frame 1, a sampling tube 3 placed on top of the fixed frame 1, the outer surface and inner wall of the sampling tube 3 being smoothed to reduce powder adhesion, a connector 2 being fixedly installed on the front of the fixed frame 1, and connected to the end shaft of the robot arm through the connector 2 and the coupling.

[0033] A fixing sleeve 14 is fixedly installed on the right side of the fixing frame 1. An air duct 22 is fixedly installed inside the fixing sleeve 14. Four blowers 23 are fixedly connected to the inner arc surface of the air duct 22. An air inlet pipe 24 is fixedly connected to the top of the air duct 22. An air inlet pipe 21 is fixedly connected to the left end of the sampling tube 3. This allows for effective connection to an external air pump device and high-pressure cleaning of the exterior and interior of the sampling tube 3.

[0034] Gear 12 is placed inside the fixed frame 1. Bearings 16 are inlaid on the front and back of the fixed frame 1. The outer surfaces of the front and rear fixed ends of the gear 12 are fixedly connected to the inner rings of the two bearings 16 respectively. A servo motor 13 is fixedly installed on the back of the fixed frame 1 by bolts. The output end of the servo motor 13 is fixedly connected to the rear end of the gear 12. A through slot 15 is opened on the top of the fixed frame 1.

[0035] A top cover 5 is fixedly installed on the upper surface of the mounting bracket 1 by bolts, and the top cover 5 is fitted over the outside of the sampling tube 3. The bottom surface of the sampling tube 3 has equally spaced toothed grooves 9, and the gear 12 meshes with the toothed grooves 9. Guide grooves 4 are provided on both the left and right sides of the sampling tube 3. Two guide strips 25 are fixedly installed on the inner side wall of the top cover 5, and the guide strips 25 extend into the interior of the guide grooves 4.

[0036] A mounting base 6 is fixed to the left end of the sampling tube 3 by bolts. A bearing 17 is embedded in the middle of the mounting base 6. A servo motor 7 is fixed to the left side of the mounting base 6 by bolts. The input ends of the servo motors 13 and 7 are electrically connected to the circuit board through the motor controller, so as to better control the start, stop, direction, angle and speed of the servo motors 13 and 7 through the circuit board and the controller. A rotating shaft 10 is fixedly installed at the output end of the servo motor 7. The end of the rotating shaft 10 away from the servo motor 7 passes through the bearing 17 and extends into the interior of the sampling tube 3. The outer surface of the rotating shaft 10 is fixedly connected to the inner ring of the bearing 17. A spiral auger 11 is fixedly installed on the outer surface of the rotating shaft 10 inside the sampling tube 3.

[0037] A discharge port 20 is provided on the lower surface of the left end of the sampling tube 3. A guide cover 19 is fixedly installed inside the discharge port 20 by bolts to better guide the powder during discharge and to better maintain the upper part of the sampling tube 3 by opening the guide cover 19. An electric control valve 8 is fixedly installed at the bottom of the guide cover 19. The bottom of the electric control valve 8 is fixedly connected to the discharge tube 18 to better control the opening and closing of the passage in conjunction with sampling. It is closed during sampling and opened when the sampling is completed and the output is collected.

[0038] Working Principle: In use, the sample tube 3 is connected to the end shaft of the robot arm via connector 2 and coupling. First, the robot adjusts the angle of the sampling tube 3. Once the sampling tube 3 reaches the sampling position, the circuit board controls servo motor 13 to rotate, driving gear 12 to rotate. This, in conjunction with the toothed groove 9 at the bottom of the sampling tube 3, adjusts the extension length of the sampling tube, inserting it into the hopper. After reaching the predetermined extension length, the circuit board controls servo motor 7 to rotate counterclockwise, driving shaft 10 and auger 11 to rotate. This transports the negative electrode powder at the opening of the sampling tube 3 to the upper part of the tube for collection. After collection, the robot adjusts the actuator position to the upper part of the waste bin, opening the electronic valve 8. Servo motor 7 is then restarted to rotate, transporting any powder that may be present at the top. The upper layer of powder entering the hopper is discharged through the outlet. Then, the electric control valve 8 is closed, and the discharge pipe of the device is adjusted to the top of the sampling box. The powder sample is continuously output by the rotation of the servo motor 7 to complete the collection of negative electrode powder. After the sampling is completed, the external air pump connects the high-pressure gas to the air inlet pipe 2 and air inlet pipe 1 through the conduit. The high-pressure gas enters the air duct and is blown out through the four blowers, thereby blowing the toothed groove at the bottom of the sampling tube. This avoids the powder material adhering in the groove after sampling, which affects the sampling accuracy. The high-pressure gas enters the sampling tube and can clean the guide cover and the inner wall of the discharge pipe after sampling. After the electric control valve is closed, the high-pressure gas passes through the inside of the sampling tube and, together with the auger rotation, can effectively clean the inside, improving the sampling and cleaning effect of the device.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An end effector for an automatic sampling robot for negative electrode powder materials, comprising a fixed frame (1), characterized in that: A sampling tube (3) is placed above the fixing frame (1); The fixed frame (1) contains a gear (12), and the front and back sides of the fixed frame (1) are inlaid with bearings (16). The outer surfaces of the front and rear fixed ends of the gear (12) are fixedly connected to the inner rings of the two bearings (16). The back side of the fixed frame (1) is fixedly installed with a servo motor (13) by bolts, and the output end of the servo motor (13) is fixedly connected to the rear end of the gear (12). The top of the fixed frame (1) has a through groove (15). The upper surface of the fixing frame (1) is fixedly installed with a top cover (5) by bolts, and the top cover (5) is sleeved on the outside of the sampling tube (3). The bottom surface of the sampling tube (3) is provided with equally spaced tooth grooves (9), and the gear (12) meshes with the tooth grooves (9). The left and right sides of the sampling tube (3) are provided with guide grooves (4). Two guide strips (25) are fixedly installed on the inner side wall of the top cover (5), and the guide strips (25) extend into the interior of the guide grooves (4). The left end of the sampling tube (3) is fixedly mounted with a fixing seat (6) by bolts. The middle part of the fixing seat (6) is inlaid with a bearing (17). The left side of the fixing seat (6) is fixedly mounted with a servo motor (7) by bolts. The output end of the servo motor (7) is fixedly mounted with a rotating shaft (10). The end of the rotating shaft (10) away from the servo motor (7) passes through the bearing (17) and extends into the interior of the sampling tube (3). The outer surface of the rotating shaft (10) is fixedly connected to the inner ring of the bearing (17). The outer surface of the rotating shaft (10) located inside the sampling tube (3) is fixedly mounted with a spiral auger (11).

2. The robot end effector for automatically sampling a negative electrode powder material according to claim 1, characterized by: The front of the fixing frame (1) is fixedly installed with a connector (2).

3. The robot end effector for automatically sampling a negative electrode powder material according to claim 1, characterized by: A fixing sleeve (14) is fixedly installed on the right side of the fixing frame (1). An air duct (22) is fixedly installed inside the fixing sleeve (14). Four blowers (23) are fixedly connected to the inner arc surface of the air duct (22). An air inlet pipe (24) is fixedly connected to the top of the air duct (22). An air inlet pipe (21) is fixedly connected to the left end of the sampling tube (3).

4. The robot end effector for automatically sampling a negative electrode powder material according to claim 1, characterized by: The sampling tube (3) has a discharge port (20) on its lower surface at the left end, and a guide cover (19) is fixedly installed inside the discharge port (20) by bolts.

5. The robot end effector for automatically sampling a negative electrode powder material according to claim 4, characterized by: An electric control valve (8) is fixedly installed at the bottom of the material guide cover (19), and the bottom of the electric control valve (8) is fixedly connected to the discharge pipe (18).

6. The robot end effector for automatically sampling a negative electrode powder material according to claim 1, wherein: The input terminals of both the first servo motor (13) and the second servo motor (7) are electrically connected to the circuit board via a motor controller.

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