Intelligent grabbing device for automobile part feeding

Abstract

The utility model relates to the technical field of automobile part welding, and discloses an automobile part feeding intelligent grabbing device which comprises a six-axis robot, a positive and negative lead screw is rotationally connected between the opposite outer surfaces of the left side and the right side of a U-shaped base, and a motor is fixedly installed on the outer surface of the right side of the U-shaped base; second electric push rods are fixedly installed on the outer surface of the inverted-L-shaped plate and the outer surface of the transverse plate correspondingly, the side, penetrating through the side plate, of a rotating shaft is fixedly sleeved with a gear, and the output end of a third electric push rod is fixedly connected with a rack. A motor drives a positive and negative lead screw to enable a clamping seat to clamp an automobile part, a rotating rod is made to rotate in cooperation with a third electric push rod, a rack and a gear, and then the top and the bottom of the automobile part are supported in cooperation with a second electric push rod and a supporting plate; and the situation that the automobile parts fall off from the bottom end due to the dead weight of the automobile parts in the welding process is avoided, and the grabbing stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts welding technology, specifically to an intelligent gripping device for loading automotive parts. Background Technology

[0002] Automotive parts refer to the various units that make up a car as a whole and products that serve the car. There are many types of automotive parts, and in the production process of automotive parts, nuts are usually welded onto the parts to form standard parts.

[0003] In the prior art, during projection welding, the parts are clamped by a gripping device and then placed into the projection welding machine by a robotic arm. However, the existing gripping device usually consists of two rectangular clamps that move relative to each other to clamp the automotive parts. At this time, the bottom of the automotive parts is usually hollow and not under stress. When the automotive parts are heavy, they may slip off the bottom due to gravity. Therefore, an intelligent gripping device for loading automotive parts is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an intelligent gripping device for loading automotive parts, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent gripping device for loading automotive parts, comprising a six-axis robot, a U-shaped base fixedly connected to the output end of the six-axis robot, a positive and negative lead screw rotatably connected between the opposite outer surfaces of the left and right sides of the U-shaped base, a motor fixedly installed on the right outer surface of the U-shaped base, the output end of the motor fixedly connected to the positive and negative lead screw, two threaded plates threadedly connected to the outer surface of the positive and negative lead screw, side plates fixedly connected to the outer surfaces of the two threaded plates, a receiving groove provided on the bottom outer surface of each of the two side plates, a rotating shaft rotatably connected inside the receiving groove, a rotating rod fixedly sleeved on the outer surface of the rotating shaft, a horizontal plate fixedly connected to the outer surface of the rotating rod, an inverted L-shaped plate fixedly connected to the top outer surface of the side plate, a second electric push rod fixedly installed on the outer surface of the inverted L-shaped plate and the outer surface of the horizontal plate, and a support plate fixedly connected to the output end of the second electric push rod;

[0006] A gear is fixedly sleeved on one side of the rotating shaft that passes through the side plate. A third electric push rod is fixedly installed on the outer surfaces of the two opposite side plates. A rack is fixedly connected to the output end of the third electric push rod, and the rack is movably meshed with the outer surface of the gear.

[0007] Furthermore, a fixing plate is rotatably sleeved at the middle of the outer surface of the positive and negative lead screws. A first electric push rod is fixedly installed on the front outer surface of the fixing plate. A connecting plate is fixedly connected to the output end of the first electric push rod. Clamping seats are provided on the front side of the connecting plate and on the opposite side of the two side plates. Cylinders are installed on the outer surface of the clamping seats near the corresponding connecting plate and side plate. An arc-shaped clamping plate is fixedly connected to the output end of the cylinder.

[0008] Furthermore, two springs are fixedly connected to the outer surfaces of the two side plates and the connecting plate, and the other ends of the two springs are fixedly connected to the clamping seat. A positioning plate is fixedly connected to the outer surface of the clamping seat on the side closest to the spring. A pressure sensor is fixedly installed on the outer surface of the connecting plate and the side plates, and the pressure sensor is electrically connected to an external controller.

[0009] Furthermore, the outer surface of the clamping seat is provided with a through groove, the size of which is larger than the size of the arc-shaped clamping plate.

[0010] Furthermore, movable rods are movably inserted into the outer surfaces of both side plates, one end of each movable rod is fixedly connected to a clamping seat, and a spring is sleeved on the outer surface of the movable rod.

[0011] Furthermore, two sliding rods are fixedly connected to the opposite outer surfaces of the left and right sides of the U-shaped seat, and two threaded plates are movably sleeved on the outer surfaces of the two sliding rods, while the fixing plate is fixedly sleeved on the outer surfaces of the two sliding rods.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This intelligent gripping device for loading automotive parts uses a motor to drive the forward and reverse lead screws to rotate, which in turn drives the threaded plate to clamp the automotive parts. In conjunction with the third electric push rod, rack and pinion, the rotating rod rotates to a state parallel and perpendicular to the side plate. Then, in conjunction with the second electric push rod and support plate, the top and bottom of the automotive parts are supported, preventing the automotive parts from falling off the bottom due to their own weight during the welding process, thus improving the stability during gripping.

[0014] 2. This intelligent gripping device for loading automotive parts uses a cylinder to move an arc-shaped clamping plate, causing the arc-shaped clamping plate to extend out of the clamping seat. During clamping, the arc-shaped clamping plate clamps the cylindrical part, and the first electric push rod drives the arc-shaped clamping plate on the other side to clamp the other end of the cylindrical part. This multi-faceted clamping of the cylindrical part improves the stability of gripping the cylindrical part.

[0015] 3. This intelligent gripping device for loading automotive parts contacts a pressure sensor via a positioning plate, causing the pressure sensor to sense a set value. In conjunction with the controller, the first electric push rod and the motor stop working, thereby controlling the clamping force of the automotive parts. This prevents damage to the automotive parts due to excessive clamping force or detachment due to insufficient clamping force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the side plate and related structures of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping base and related structures of this utility model;

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Six-axis robot; 2. U-shaped base; 3. Forward and reverse lead screws; 4. Motor; 5. Threaded plate; 6. Fixing plate; 7. Side plate; 8. First electric push rod; 9. Connecting plate; 10. Clamping seat; 11. Cylinder; 12. Arc-shaped clamping plate; 13. Spring; 14. Pressure sensor; 15. Positioning plate; 16. Rotating shaft; 17. Rotating rod; 18. Horizontal plate; 19. Inverted L-shaped plate; 20. Second electric push rod; 21. Support plate; 22. Third electric push rod; 23. Rack; 24. Gear. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Please refer to the following: Figures 1-4This utility model provides a technical solution: an intelligent gripping device for loading automotive parts, comprising a six-axis robot 1, a U-shaped base 2 fixedly connected to the output end of the six-axis robot 1, a positive and negative lead screw 3 rotatably connected between the opposite outer surfaces of the left and right sides of the U-shaped base 2, a motor 4 fixedly installed on the right outer surface of the U-shaped base 2, the output end of the motor 4 fixedly connected to the positive and negative lead screw 3, two threaded plates 5 threadedly connected to the outer surface of the positive and negative lead screw 3, side plates 7 fixedly connected to the outer surface of the two threaded plates 5, receiving grooves formed on the bottom outer surface of the two side plates 7, a rotating shaft 16 rotatably connected inside the receiving grooves, a rotating rod 17 fixedly sleeved on the outer surface of the rotating shaft 16, a horizontal plate 18 fixedly connected to the outer surface of the rotating rod 17, an inverted L-shaped plate 19 fixedly connected to the top outer surface of the side plate 7, a second electric push rod 20 fixedly installed on the outer surface of the inverted L-shaped plate 19 and the outer surface of the horizontal plate 18, a support plate 21 fixedly connected to the output end of the second electric push rod 20, and the rotating shaft 16 penetrating one side of the side plate 7. A gear 24 is fixedly mounted on the sleeve. A third electric push rod 22 is fixedly installed on the outer surfaces of both opposite side plates 7. A rack 23 is fixedly connected to the output end of the third electric push rod 22. The rack 23 meshes movably with the outer surface of the gear 24. Specifically, the motor 4 drives the positive and negative lead screws 3 to rotate. The rotation of the positive and negative lead screws 3 causes the two threaded plates 5 to move until the two clamping seats 10 clamp the automotive parts. After clamping, the third electric push rod 22 operates, driving the rack 23 to move. The rack 23 drives the gear 24 to rotate, causing the rotating shaft 16 to drive the rotating rod 17 to rotate until the rotating rod 17 is parallel and perpendicular to the side plates 7. Then, the second electric push rod 20 operates, driving the support plate 21 to contact the top and bottom of the automotive parts, providing support to the top and bottom of the automotive parts. This prevents the automotive parts from falling off the bottom due to their own weight during welding, improving the stability during gripping.

[0024] In this embodiment, a fixing plate 6 is rotatably sleeved at the middle of the outer surface of the positive and negative lead screw 3. A first electric push rod 8 is fixedly installed on the front outer surface of the fixing plate 6. A connecting plate 9 is fixedly connected to the output end of the first electric push rod 8. A clamping seat 10 is provided on the front side of the connecting plate 9 and on the opposite side of the two side plates 7. A cylinder 11 is installed on the outer surface of the clamping seat 10 near the corresponding connecting plate 9 and side plate 7. An arc-shaped clamping plate 12 is fixedly connected to the output end of the cylinder 11. Specifically, when it is necessary to clamp a cylindrical part, the cylinder 11 is activated, and the cylinder 11 drives the arc-shaped clamping plate 12 to move, so that the arc-shaped clamping plate 12 extends out of the clamping seat 10. During clamping, the part is clamped by the arc-shaped clamping plate 12, and the other end of the cylindrical part is clamped by the arc-shaped clamping plate 12 on the other side driven by the first electric push rod 8. The cylindrical part is clamped from multiple sides, which improves the stability when gripping the cylindrical part.

[0025] In this embodiment, two springs 13 are fixedly connected to the outer surfaces of the two side plates 7 and the connecting plate 9. The other ends of the two springs 13 are fixedly connected to the clamping seat 10. A positioning plate 15 is fixedly connected to the outer surface of the clamping seat 10 near the springs 13. A pressure sensor 14 is fixedly installed on the outer surfaces of the connecting plate 9 and the side plates 7. The pressure sensor 14 is electrically connected to an external controller. Specifically, the controller is electrically connected to the motor 4 and the first electric push rod 8. When the clamping seat 10 contacts the automotive parts, the springs 13 are compressed as the clamping seat 10 clamps until the pressure sensor 14 contacts the positioning plate 15. When the pressure sensor 14 senses the set value (the set value of the pressure sensor 14 is adjusted according to the pressure borne by different automotive parts), the pressure sensor 14 sends a signal to the controller. The controller receives the signal and causes the motor 4 and the first electric push rod 8 to stop working, thereby controlling the clamping force of the automotive parts and avoiding damage to the automotive parts due to excessive clamping force or detachment due to insufficient clamping force.

[0026] In this embodiment, a through groove is provided on the outer surface of the clamping seat 10. The size of the through groove is larger than the size of the arc-shaped clamping plate 12. Specifically, the through groove provides a channel for the movement of the arc-shaped clamping plate 12, so that the arc-shaped clamping plate 12 extends out of the clamping seat 10.

[0027] In this embodiment, movable rods are movably inserted into the outer surfaces of both side plates 7. One end of the movable rod is fixedly connected to the clamping seat 10. The spring 13 is sleeved on the outer surface of the movable rod. Specifically, when the clamping seat 10 clamps the automotive parts, the movable rod moves as the clamping seat 10 clamps, causing the spring 13 to deform. The movable rod limits the clamping seat 10, allowing the clamping seat 10 to move stably in a straight line. The movable rod also limits the spring 13, preventing the spring 13 from tilting.

[0028] In this embodiment, two slide rods are fixedly connected to the opposite outer surfaces of the left and right sides of the U-shaped seat 2. Two threaded plates 5 are movably sleeved on the outer surfaces of the two slide rods, and a fixing plate 6 is fixedly sleeved on the outer surfaces of the two slide rods. Specifically, when the motor 4 drives the forward and reverse screws 3 to rotate, it causes the threaded plates 5 to slide on the outer surfaces of the slide rods. The fixing plate 6 is fixedly connected to the slide rods to prevent the fixing plate 6 from sliding on the slide rods.

[0029] Working Principle: In use, this utility model uses a six-axis robot 1 to move the U-shaped seat 2 to the corresponding position of the automotive parts. When it is necessary to grip the automotive parts, the motor 4 drives the positive and negative lead screws 3 to rotate. The rotation of the positive and negative lead screws 3 drives the two threaded plates 5 to move until the two clamping seats 10 clamp the automotive parts. After clamping, the third electric push rod 22 works, which drives the rack 23 to move. The rack 23 drives the gear 24 to rotate, causing the rotating shaft 16 to drive the rotating rod 17 to rotate. The rotating rod 17 is rotated to a state parallel and perpendicular to the side plate 7. Then the second electric push rod 20 works, which drives the support plate 21 to contact the top and bottom of the automotive parts, supporting the top and bottom of the automotive parts and preventing the automotive parts from falling off the bottom due to their own weight during the welding process, thus improving the stability during gripping.

[0030] When it is necessary to clamp cylindrical parts, the cylinder 11 is activated, and the cylinder 11 drives the arc-shaped clamping plate 12 to move, so that the arc-shaped clamping plate 12 extends out of the clamping seat 10. During clamping, the part is clamped by the arc-shaped clamping plate 12, and the other end of the cylindrical part is clamped by the first electric push rod 8. The cylindrical part is clamped from multiple sides, which improves the stability when gripping the cylindrical part.

[0031] During clamping, when the clamping seat 10 contacts the automotive parts, the spring 13 is compressed as the clamping seat 10 clamps, until the pressure sensor 14 contacts the positioning plate 15. When the pressure sensor 14 senses the set value (the set value of the pressure sensor 14 is adjusted according to the pressure borne by different automotive parts), the pressure sensor 14 sends a signal to the controller. The controller receives the signal and causes the motor 4 and the first electric push rod 8 to stop working, thereby controlling the clamping force of the automotive parts and avoiding damage to the automotive parts due to excessive clamping force or detachment due to insufficient clamping force.

[0032] The six-axis robot 1 and the controller are existing structures, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field, and we will only use it without modifying it. Therefore, the control method and circuit connection will not be described in detail.

[0033] 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 intelligent gripping device for loading automotive parts, comprising a six-axis robot (1), characterized in that: The output end of the six-axis robot (1) is fixedly connected to a U-shaped base (2). A positive and negative lead screw (3) is rotatably connected between the opposite outer surfaces of the left and right sides of the U-shaped base (2). A motor (4) is fixedly installed on the right outer surface of the U-shaped base (2). The output end of the motor (4) is fixedly connected to the positive and negative lead screw (3). Two threaded plates (5) are threadedly connected to the outer surface of the positive and negative lead screw (3). Side plates (7) are fixedly connected to the outer surfaces of the two threaded plates (5). The bottom outer surfaces of the two side plates (7) are... Each side is provided with a receiving groove, and a rotating shaft (16) is rotatably connected inside the receiving groove. A rotating rod (17) is fixedly sleeved on the outer surface of the rotating shaft (16). A horizontal plate (18) is fixedly connected to the outer surface of the rotating rod (17). An inverted L-shaped plate (19) is fixedly connected to the top outer surface of the side plate (7). A second electric push rod (20) is fixedly installed on the outer surface of the inverted L-shaped plate (19) and the outer surface of the horizontal plate (18). A support plate (21) is fixedly connected to the output end of the second electric push rod (20). The rotating shaft (16) passes through one side of the side plate (7) and a gear (24) is fixedly sleeved thereon. A third electric push rod (22) is fixedly installed on the outer surfaces of the two side plates (7) facing away from each other. A rack (23) is fixedly connected to the output end of the third electric push rod (22). The rack (23) is movably meshed with the outer surface of the gear (24).

2. The intelligent gripping device for loading automotive parts according to claim 1, characterized in that: A fixing plate (6) is rotatably sleeved at the middle of the outer surface of the positive and negative lead screw (3). A first electric push rod (8) is fixedly installed on the front outer surface of the fixing plate (6). A connecting plate (9) is fixedly connected to the output end of the first electric push rod (8). A clamping seat (10) is provided on the front side of the connecting plate (9) and on the opposite side of the two side plates (7). A cylinder (11) is installed on the outer surface of the clamping seat (10) close to the corresponding connecting plate (9) and side plate (7). An arc-shaped clamping plate (12) is fixedly connected to the output end of the cylinder (11).

3. The intelligent gripping device for loading automotive parts according to claim 2, characterized in that: Two springs (13) are fixedly connected to the outer surfaces of the two side plates (7) and the connecting plate (9). The other ends of the two springs (13) are fixedly connected to the clamping seat (10). A positioning plate (15) is fixedly connected to the outer surface of the clamping seat (10) on the side near the springs (13). A pressure sensor (14) is fixedly installed on the outer surfaces of the connecting plate (9) and the side plates (7). The pressure sensor (14) is electrically connected to an external controller.

4. The intelligent gripping device for loading automotive parts according to claim 2, characterized in that: The outer surface of the clamping seat (10) is provided with a through groove, the size of which is larger than the size of the arc-shaped clamp (12).

5. The intelligent gripping device for loading automotive parts according to claim 3, characterized in that: Movable rods are movably inserted into the outer surfaces of both side plates (7), one end of the movable rod is fixedly connected to the clamping seat (10), and the spring (13) is sleeved on the outer surface of the movable rod.

6. The intelligent gripping device for loading automotive parts according to claim 2, characterized in that: Two sliding rods are fixedly connected to the opposite outer surfaces of the U-shaped seat (2) on the left and right sides. Two threaded plates (5) are movably sleeved on the outer surfaces of the two sliding rods. The fixing plate (6) is fixedly sleeved on the outer surfaces of the two sliding rods.

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