Manipulator jig

Abstract

The utility model discloses a manipulator jig which comprises a mechanical arm, a fixing disc is fixedly connected to the mechanical arm, a U-shaped frame is fixedly connected to the bottom of the fixing disc, two guide plates are arranged in the U-shaped frame and fixedly connected with the inner wall of the U-shaped frame, and two mounting plates are arranged between the two guide plates. Square grooves are formed in the two ends of one side of the mounting plate, two fixing plates are arranged in the two square grooves in the mounting plate, the same clamping jaw is fixedly connected to the bottoms of the two fixing plates, two positioning rods are arranged in the square grooves, holes matched with the square grooves are formed in the fixing plates, and two guide rods are fixedly connected to the two sides of the mounting plate; the two guide rods located on the same side are sleeved with the same square plate. According to the utility model, the clamping jaw can be quickly mounted and dismounted, the time and energy required for mounting and dismounting are remarkably shortened, the configuration of the clamping jaw can be quickly switched in multi-variety and small-batch production, and the production adaptability is improved.

Description

Technical Field

[0001] This utility model relates to the field of assembly fixture technology, and in particular to a robotic arm fixture. Background Technology

[0002] Robotic jigs are auxiliary devices used in automated production and processing. They typically consist of a robotic arm and various grippers, sensors, and control systems. They are used to grasp, transport, assemble, or process workpieces. Robotic jigs can automatically complete highly repetitive tasks on the production line, improving efficiency. Through a precise control system, they ensure the accurate execution of each process. Therefore, robotic jigs are widely used.

[0003] When producing a variety of small batches of workpieces, it is necessary to frequently change the grippers. However, in most existing robotic jigs, the grippers are fixed to the jig mounting base by bolts. Special tools are required for installation and disassembly, which increases the time for setup and adjustment. This leads to increased downtime of the production line when rapidly changing production tasks, thereby reducing overall efficiency. Therefore, it is necessary to design a robotic jig to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a robotic arm fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A robotic arm fixture includes a robotic arm with a fixed plate fixedly connected to it. A U-shaped frame is fixedly connected to the bottom of the fixed plate. Two guide plates are disposed within the U-shaped frame, and both guide plates are fixedly connected to the inner wall of the U-shaped frame. Two mounting plates are disposed between the two guide plates. Square grooves are formed at both ends of one side of each mounting plate. Two fixing plates are disposed within the two square grooves on the mounting plate. A common gripper is fixedly connected to the bottom of the two fixing plates. Two positioning rods are disposed within the square grooves, and the positioning rods are fixedly connected to the mounting plates. Holes matching the square grooves are formed on the fixing plates. Two guide rods are fixedly connected to both sides of the mounting plate. Two guide rods on the same side are fitted with the same square plate. The square plate is slidably connected to the guide rods. A return spring is fitted onto each guide rod and disposed between the mounting plate and the square plate. A fixing seat is fixedly connected to the side of the square plate away from the mounting plate, and a roller is rotatably connected to the fixing seat. Two insertion rods are fixedly connected to the side of the square plate away from the fixing seat. Each component has a slot adapted to the insertion rod. The roller is located on one side of the guide plate. Due to the use of a positioning rod and insertion rod to limit the position of the fixed plate for clamp installation, when the mounting plate is moved to bring the two clamps closer together, the insertion rod can move closer to the fixed plate until it is inserted into the slot on the fixed plate, thus limiting the position of the fixed plate and installing the clamps. Subsequently, the clamps can be moved further to adjust the position between the two clamps for gripping the workpiece. This effectively solves the problem mentioned in the background art of frequently changing clamps when producing multiple varieties of small batches of workpieces. However, in most existing robotic jigs, the clamps are fixed to the jig mounting base with bolts, requiring specialized tools for installation and disassembly, increasing setup and adjustment time. This leads to increased production line downtime and reduced overall efficiency when rapidly changing production tasks. This solution enables rapid installation and disassembly of clamps, significantly reducing the time and effort required for installation and disassembly. In multi-variety, small-batch production, it allows for rapid switching of clamp configurations, improving production adaptability.

[0007] Preferably, both grippers are fixedly connected with rubber anti-slip pads on their sides that are close to each other.

[0008] Preferably, one of the guide plates has a first magnet fixedly connected to both ends on one side. The first magnet and the guide plate are both provided with pins. The first magnet and the guide plate are both provided with holes that are compatible with the pins. The pins are fixedly connected to a second magnet. The second magnet and the first magnet are attracted to each other by opposite poles.

[0009] Preferably, a bidirectional lead screw is provided between the two guide plates, and both ends of the bidirectional lead screw are fitted with lead screw nuts. The lead screw nuts are threadedly connected to the bidirectional lead screw, and the two lead screw nuts are respectively fixedly connected to the two mounting plates.

[0010] Preferably, both ends of the bidirectional lead screw are fitted with sleeves, the bidirectional lead screw is rotatably connected to the sleeves, and the sleeves are fixedly connected to the inner wall of the U-shaped frame.

[0011] Preferably, a servo motor is fixedly connected to one side of the U-shaped frame, and a bidirectional lead screw is fixedly connected to the output end of the servo motor.

[0012] Preferably, the top inner wall of the U-shaped frame is fixedly connected to two slide rails, and each of the two slide rails is provided with two sliders. The sliders are slidably connected to the slide rails, and the sliders are fixedly connected to the top of the mounting plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] By employing a positioning rod and a insertion rod to limit the position of the fixed plate for gripper installation, the insertion rod moves closer to the fixed plate and inserts into the slot on the fixed plate when the mounting plate is moved to bring the two grippers closer together. This limits the position of the fixed plate and installs the grippers. The grippers can then be moved further to adjust their position for gripping the workpiece. This effectively solves the problem mentioned in the background technology of frequently changing grippers when producing multiple varieties of small batches of workpieces. In existing technologies, most grippers on robotic jigs are fixed to the jig mounting base with bolts, requiring specialized tools for installation and removal, increasing setup and adjustment time. This leads to increased production line downtime and reduced overall efficiency when rapidly changing production tasks. This new technology enables rapid installation and removal of grippers, significantly reducing the time and effort required for installation and removal. In multi-variety, small-batch production, it allows for quick switching of gripper configurations, improving production adaptability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a robotic arm fixture proposed in this utility model;

[0016] Figure 2 This is a partial bottom view of the structure of a robotic arm fixture proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the gripper structure of a robotic arm fixture proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the unfolded structure of the gripper of a robotic arm fixture proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the unfolded structure of the mounting plate of a robotic arm fixture proposed in this utility model;

[0020] Figure 6 This is a schematic diagram of the unfolded structure of the square plate of the robotic arm fixture proposed in this utility model.

[0021] In the diagram: 1. Robotic arm; 2. Fixed plate; 3. U-shaped frame; 4. Guide plate; 5. Mounting plate; 6. Square groove; 7. Fixed plate; 8. Gripper; 9. Positioning rod; 10. Guide rod; 11. Square plate; 12. Fixed base; 13. Roller; 14. Insert rod; 15. Return spring; 16. First magnet; 17. Pin; 18. Second magnet; 19. Sleeve; 20. Bidirectional lead screw; 21. Lead screw nut; 22. Servo motor; 23. Slider; 24. Slide rail. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6A robotic arm fixture includes a robotic arm 1, a fixed plate 2 fixedly connected to the robotic arm 1, a U-shaped frame 3 fixedly connected to the bottom of the fixed plate 2, two guide plates 4 disposed inside the U-shaped frame 3, both guide plates 4 being fixedly connected to the inner wall of the U-shaped frame 3, two mounting plates 5 disposed between the two guide plates 4, each mounting plate 5 having a square groove 6 at both ends of one side, two fixing plates 7 disposed within the two square grooves 6 on the mounting plate 5, a common gripper 8 fixedly connected to the bottom of the two fixing plates 7, and two positioning rods 9 disposed within the square grooves 6, the positioning rods 9 being fixedly connected to the mounting plates 5. The fixing plate 7 has holes that fit the square groove 6. Two guide rods 10 are fixedly connected to both sides of the mounting plate 5. The two guide rods 10 on the same side are fitted with the same square plate 11. The square plate 11 is slidably connected to the guide rods 10. The guide rods 10 are fitted with return springs 15, which are located between the mounting plate 5 and the square plate 11. A fixing seat 12 is fixedly connected to the side of the square plate 11 away from the mounting plate 5. A roller 13 is rotatably connected to the fixing seat 12. Two insertion rods 14 are fixedly connected to the side of the square plate 11 away from the fixing seat 12. Both the mounting plate 5 and the fixed plate 7 have slots adapted to the insertion rod 14. The roller 13 is located on one side of the guide plate 4. Due to the use of the positioning rod and the insertion rod to limit the fixed plate for installing the gripper, when the mounting plate is moved to bring the two grippers closer together, the insertion rod can move closer to the fixed plate until it is inserted into the slot on the fixed plate, thus limiting the position of the fixed plate and installing the gripper. Subsequently, the gripper can continue to move to adjust the position between the two grippers to clamp the workpiece. This effectively solves the problem mentioned in the background technology that grippers need to be frequently changed when producing multiple varieties and small batches of workpieces. However, in the prior art, most grippers on robot jigs are fixed to the jig mounting base by bolts. Special tools are required for installation and disassembly, which increases the time for setting and adjustment. This leads to increased downtime of the production line when rapidly changing production tasks, thereby reducing the overall efficiency. This technology enables the rapid installation and disassembly of grippers, significantly shortening the time and effort required for installation and disassembly. In multi-variety and small-batch production, the gripper configuration can be quickly switched, improving the technical effect of production adaptability.

[0024] In this invention, the two grippers 8 are fixedly connected with rubber anti-slip pads on the sides that are close to each other.

[0025] In this invention, one guide plate 4 has a first magnet 16 fixedly connected to both ends on one side. A pin 17 is inserted through both the first magnet 16 and the guide plate 4. Holes adapted to the pins 17 are opened on both the first magnet 16 and the guide plate 4. A second magnet 18 is fixedly connected to the pin 17. The second magnet 18 and the first magnet 16 are attracted by opposite poles, and the second magnet 18 and the first magnet 16 keep the pin 17 in a stable position. When the pin 17 is installed on the guide plate 4, the pin 17 can act as a limiter when the mounting plate 5 is between the two pins 17. When the two mounting plates 5 move away from each other, the mounting plate 5 will contact the pin 17, preventing the roller 13 from moving to the inclined plate of the guide plate 4 and causing the limiting effect on the fixing plate 7 to fail.

[0026] In this utility model, a bidirectional lead screw 20 is provided between the two guide plates 4. Both ends of the bidirectional lead screw 20 are fitted with lead screw nuts 21, which are threadedly connected to the bidirectional lead screw 20. The two lead screw nuts 21 are respectively fixedly connected to the two mounting plates 5.

[0027] In this utility model, both ends of the bidirectional lead screw 20 are fitted with sleeves 19, the bidirectional lead screw 20 is rotatably connected to the sleeves 19, and the sleeves 19 are fixedly connected to the inner wall of the U-shaped frame 3.

[0028] In this utility model, a servo motor 22 is fixedly connected to one side of the U-shaped frame 3, and a bidirectional lead screw 20 is fixedly connected to the output end of the servo motor 22.

[0029] In this utility model, two slide rails 24 are fixedly connected to the top inner wall of the U-shaped frame 3. Two sliders 23 are provided in each of the two slide rails 24. The sliders 23 are slidably connected to the slide rails 24 and fixedly connected to the top of the mounting plate 5. When the mounting plate 5 moves, it will drive the sliders 23 to move along the slide rails 24 to ensure the stability of the mounting plate 5 when it moves.

[0030] Working principle: When in use, start the servo motor 22. The output of the servo motor 22 will drive the bidirectional lead screw 20 to rotate. The bidirectional lead screw 20 will drive the lead screw nut 21 to move. The lead screw nut 21 will drive the mounting plate 5 to move, which will cause the gripper 8 to move. When the two grippers 8 are brought closer together, the workpiece can be clamped. The robotic arm 1 can then be operated to transport the workpiece. When installing the gripper 8, place the fixing plate 7 on the gripper 8 into the square groove 6, and place the fixing plate 7 on the positioning rod 9 for positioning. Move the pin 17 from the guide... Remove plate 4, then bring the two mounting plates 5 closer together. Mounting plates 5 will cause slider 23 to move along slide rail 24, which in turn will cause guide rod 10 to move. Guide rod 10 will then cause square plate 11 to move, which in turn will cause fixing seat 12 and insert rod 14 to move. Fixing seat 12 will then cause roller 13 to move along the side where the two guide plates 4 are close together. If roller 13 moves to the inclined plate of guide plate 4 and continues to move, square plate 11 will move a certain distance towards mounting plate 5. The square plate 11 compresses the return spring 15, causing it to contract. This allows the insert rod 14 to be inserted into the slots on the mounting plate 5 and the fixing plate 7, thus restricting the position of the fixing plate 7. The gripper 8 can then be installed. After the mounting plate 5 moves past the first magnet 16, the pin 17 passes through the guide plate 4, causing the second magnet 18 to attract the first magnet 16. When the two grippers 8 move away from each other, the mounting plate 5 is restricted by the pin 17, preventing the roller 13 from moving to the inclined plate of the guide plate 4, thus maintaining the position of the gripper. The limiting function of the fixed plate 7 is effective, preventing the gripper 8 from falling off. When it is necessary to remove the gripper 8 and replace it with a gripper of another specification, the pin 17 is removed to release the restriction, so that the two grippers 8 are far apart. If the roller 13 moves to the inclined plate of the guide plate 4 and continues to move, the retracted return spring 15 will extend, which will allow the square plate 11 to move away from the mounting plate 5. This will allow the insert rod 14 to be removed from the slots on the fixed plate 7 and the mounting plate 5, thereby releasing the limitation on the fixed plate 7 and allowing the fixed plate 7 to be removed from the square slot 6.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A robot jig comprising a robot arm (1), characterized in that, The mechanical arm (1) is fixedly connected with a fixed disc (2), the bottom of the fixed disc (2) is fixedly connected with a U-shaped frame (3), two guide plates (4) are arranged in the U-shaped frame (3), the two guide plates (4) are both fixedly connected with the inner wall of the U-shaped frame (3), two mounting plates (5) are arranged between the two guide plates (4), the one side of the mounting plate (5) is provided with a square groove (6) at both ends, two fixed plates (7) are arranged in the two square grooves (6) on the mounting plate (5), the bottom of the two fixed plates (7) is fixedly connected with the same clamp jaw (8), two positioning rods (9) are arranged in the square groove (6), the positioning rod (9) is fixedly connected with the mounting plate (5), the fixed plate (7) is provided with a hole matched with the square groove (6), the two sides of the mounting plate (5) are both fixedly connected with two guide rods (10), the two guide rods (10) on the same side are both sleeved with the same square plate (11), the square plate (11) is slidably connected with the guide rod (10), the guide rod (10) is sleeved with a reset spring (15), the reset spring (15) is arranged between the mounting plate (5) and the square plate (11), the square plate (11) is fixedly connected with a fixed seat (12) on the side away from the mounting plate (5), the fixed seat (12) is rotatably connected with a roller (13), the square plate (11) is fixedly connected with two inserting rods (14) on the side away from the fixed seat (12), the mounting plate (5) and the fixed plate (7) are both provided with an inserting groove matched with the inserting rod (14), and the roller (13) is arranged on the side of the guide plate (4).

2. The mechanical hand jig according to claim 1, wherein The two clamp jaws (8) are both fixedly connected with rubber antiskid pads on the side close to each other.

3. The mechanical hand jig according to claim 1, wherein The two sides of one of the guide plates (4) are both fixedly connected with first magnets (16) at both ends, the first magnet (16) and the guide plate (4) are both provided with a bolt (17) penetratingly arranged thereon, the first magnet (16) and the guide plate (4) are both provided with a hole matched with the bolt (17), the bolt (17) is fixedly connected with a second magnet (18), and the second magnet (18) and the first magnet (16) are attracted to each other.

4. The mechanical hand jig according to claim 3, wherein Two bidirectional lead screws (20) are arranged between the two guide plates (4), the two ends of the bidirectional lead screw (20) are both sleeved with a lead screw nut (21), the lead screw nut (21) is threadedly connected with the bidirectional lead screw (20), and the two lead screw nuts (21) are respectively fixedly connected with the two mounting plates (5).

5. The mechanical hand tool of claim 4, wherein, The two ends of the bidirectional lead screw (20) are both sleeved with a sleeve (19), the bidirectional lead screw (20) is rotatably connected with the sleeve (19), and the sleeve (19) is fixedly connected with the inner wall of the U-shaped frame (3).

6. The mechanical hand tool of claim 5, wherein, One side of the U-shaped frame (3) is fixedly connected with a servo motor (22), and the output end of the servo motor (22) is fixedly connected with the bidirectional lead screw (20).

7. The mechanical hand tool of claim 5 wherein, The top inner wall of the U-shaped frame (3) is fixedly connected with two slide rails (24), two slide blocks (23) are arranged in the two slide rails (24), the slide block (23) is slidably connected with the slide rail (24), and the top of the mounting plate (5) is fixedly connected with the slide block (23).

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