Precise part feeding and discharging manipulator

Abstract

The utility model discloses a precision part feeding and discharging manipulator which comprises two connecting arms and a linear motor, the two connecting arms are located at the bottom of the linear motor, clamping assemblies are installed at the bottoms of the two connecting arms, and each clamping assembly comprises an installation frame fixedly connected with one end of the bottom of the corresponding connecting arm. A mounting seat is rotatably connected into the mounting frame, a plurality of limiting grooves distributed at equal intervals are formed in the outer wall of the top of the mounting seat, clamping plates are slidably inserted into the limiting grooves, clamping grooves of different sizes are formed in the clamping plates, and hinged supports are fixedly connected to the outer walls of the two ends of the mounting frame. By arranging the clamping assembly, the clamping plate of the corresponding model can be adjusted according to needs, a large amount of time does not need to be consumed for replacement, operation is convenient enough, the practicability of the device can be improved, and the disassembly and assembly process is simple.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically to a precision parts loading and unloading robotic arm. Background Technology

[0002] Robotic arms have been widely used in various fields such as machinery manufacturing, electronics, metallurgy, and light industry, becoming an indispensable and important piece of equipment in modern industrial production. With continuous technological advancements, the functions and performance of robotic arms are also constantly improving.

[0003] A search revealed a utility model patent with Chinese patent publication number CN214922654U, which discloses an automatic loading and unloading robot for short shaft parts. The robot includes a housing, a rotary motor fixedly connected to the inner bottom wall of the housing, a connecting rod fixedly connected to the output end of the rotary motor via a reducer, a rotating rod fixedly connected to the top end of the connecting rod, a fixed bearing fixedly embedded in the upper surface of the housing, and an annular groove formed on the upper surface of the housing.

[0004] The above-mentioned device uses two clamping plates to hold the parts. Since the shape of its inner groove is fixed, it can only hold parts of one size. If other types of parts need to be processed, the clamping plates need to be replaced. The replacement process is time-consuming and inconvenient, and there is room for improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a precision parts loading and unloading robot to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision parts loading and unloading robot, comprising two connecting arms and a linear motor. The two connecting arms are located at the bottom of the linear motor, and a clamping assembly is installed at the bottom of each of the two connecting arms. The clamping assembly includes a mounting frame fixedly connected to one end of the bottom of the connecting arm, and a mounting seat rotatably connected inside the mounting frame. The top outer wall of the mounting seat has several equally spaced limiting grooves, and a clamping plate is slidably inserted into each of the limiting grooves. The clamping plates have slots of different sizes.

[0007] As a further preferred embodiment of this technical solution, a hinge seat is fixedly connected to the outer walls of both ends of the mounting frame, and the two hinge seats are rotatably connected to the same worm gear. A worm wheel is coaxially fixed to the rotating shaft of the mounting seat, the worm gear meshes with the worm wheel, and a drive handle adapted to it is provided at one end of the worm gear.

[0008] As a further preferred embodiment of this technical solution, each of the limiting grooves is threaded with two inclined bolts, and the bottom ends of the two bolts are in contact with the same clamping plate.

[0009] The clamps can be adjusted to the corresponding model as needed, eliminating the need for time-consuming replacements. The operation is convenient and improves the practicality of the device. The disassembly and assembly process is also relatively simple. By driving the worm gear to rotate through the handle, the worm gear drives the worm wheel to rotate through meshing. The mounting base is driven by the worm wheel to rotate synchronously until the two corresponding clamps are close to each other. If the clamp needs to be replaced, twist off the bolt. The top of the clamp is no longer restricted. Push the clamp upward to remove it for replacement. Then twist the bolt into the mounting base. The bolt will tightly press the clamp to ensure that the clamp will not move.

[0010] As a further preferred embodiment of this technical solution, the linear motor actuator is fixedly mounted with a vertically arranged electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a horizontally arranged installation chamber, a guide rod is fixedly connected to the top outer wall of the installation chamber, and an extension block is provided on the outside of the electric telescopic rod, with the guide rod slidably inserted into the extension block.

[0011] As a further preferred embodiment of this technical solution, a transmission assembly is installed inside the installation chamber. The transmission assembly includes two limiting rods fixedly connected inside the installation chamber, and two connecting arms slidably sleeved outside the two limiting rods. A horizontally arranged bidirectional lead screw is rotatably connected inside the installation chamber, and the two connecting arms are respectively threaded onto the threads at both ends of the bidirectional lead screw. A motor is fixedly installed on one side of the outer wall of the installation chamber, and the output end of the motor is coaxially fixed with one end of the bidirectional lead screw.

[0012] As a further preferred embodiment of this technical solution, a positioning rod is slidably inserted into the top of the mounting frame, and several positioning grooves corresponding to the positions of the clamping plates are formed on the outer wall of the top of the worm gear. A spring is sleeved on the outside of the positioning rod, and the two ends of the spring are fixedly connected to the end of the positioning rod and the mounting frame, respectively.

[0013] As a further preferred embodiment of this technical solution, several corner brackets are fixedly connected to the top and bottom outer walls of the linear motor.

[0014] As a further preferred embodiment of this technical solution, the mounting frame is inclined.

[0015] This utility model provides a precision parts loading and unloading robot, which has the following advantages:

[0016] This invention, by setting up a clamping assembly, allows for adjustment of the corresponding model of clamping plate as needed, eliminating the need for time-consuming replacements. The operation is convenient and improves the practicality of the device. The assembly and disassembly process is also relatively simple. By driving the worm gear to rotate through the handle, the worm gear drives the worm wheel to rotate, and the mounting base is synchronously rotated by the worm wheel until the two corresponding clamping plates are close together. To replace a clamping plate, simply twist off the bolt, removing the top of the clamping plate. Push the clamping plate upwards to remove it for replacement. Then, twist the bolt back into the mounting base; the bolt will tightly press the clamping plate, ensuring it does not move. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged structural schematic diagram of the clamping component of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0021] In the diagram: 1. Connecting arm; 2. Mounting chamber; 3. Linear motor; 4. Angle bracket; 5. Clamping assembly; 6. Transmission assembly; 7. Electric telescopic rod; 501. Mounting base; 502. Limiting groove; 503. Clamping plate; 504. Bolt; 505. Worm gear; 506. Hinge seat; 507. Worm; 508. Positioning rod; 509. Spring; 510. Positioning groove; 511. Mounting frame; 601. Two-way lead screw; 602. Limiting rod; 603. Electric motor. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figure 2 and Figure 3 As shown in this embodiment, a precision parts loading and unloading robot includes two connecting arms 1 and a linear motor 3. The two connecting arms 1 are located at the bottom of the linear motor 3. Each connecting arm 1 has a clamping assembly 5 installed at its bottom. The clamping assembly 5 includes a mounting frame 511 fixedly connected to one end of the bottom of the connecting arm 1. A mounting base 501 is rotatably connected inside the mounting frame 511. The top outer wall of the mounting base 501 has several equally spaced limiting grooves 502. Each of the several limiting grooves 502 is slidably inserted with a clamping plate 503, and the several clamping plates 503 have slots of different sizes.

[0024] A hinge seat 506 is fixedly connected to the outer walls of both ends of the mounting frame 511. The two hinge seats 506 are rotatably connected to the same worm gear 507. A worm wheel 505 is coaxially fixed to the rotating shaft of the mounting base 501. The worm gear 507 meshes with the worm wheel 505, and a drive handle adapted to it is provided at one end of the worm gear 507.

[0025] Each of the limiting grooves 502 has two inclined bolts 504 threadedly connected inside, and the bottom end of each of the two bolts 504 is in contact with the same clamping plate 503.

[0026] If the workpiece size is adjusted, the worm 507 is rotated by the handle. The worm 507 drives the worm wheel 505 to rotate through meshing. The mounting base 501 is driven by the worm wheel 505 to rotate synchronously until the two corresponding clamping plates 503 are close to each other. If the clamping plate 503 needs to be replaced, twist to remove the bolt 504. The top of the clamping plate 503 is no longer restricted. Push the clamping plate 503 upward to remove it for replacement. Then twist the bolt 504 into the mounting base 501. The bolt 504 can then tightly squeeze the clamping plate 503 to ensure that the clamping plate 503 will not move.

[0027] like Figure 1 As shown, the linear motor 3 has a vertically mounted electric telescopic rod 7 fixedly installed on its mover. The output end of the electric telescopic rod 7 is fixedly connected to a horizontally mounted installation chamber 2. A guide rod is fixedly connected to the top outer wall of the installation chamber 2. An extension block is provided on the outside of the electric telescopic rod 7, and the guide rod is slidably inserted into the extension block to prevent the installation chamber 2 from rotating during use.

[0028] The electric telescopic rod 7 is activated to drive the mounting chamber 2 downward, and then the two clamping assemblies 5 move to the outside of the new workpiece.

[0029] like Figure 1 As shown, a transmission assembly 6 is installed inside the installation chamber 2. The transmission assembly 6 includes two limiting rods 602 fixedly connected inside the installation chamber 2. Two connecting arms 1 are slidably sleeved on the outside of the two limiting rods 602. A horizontally arranged bidirectional lead screw 601 is rotatably connected inside the installation chamber 2. The two connecting arms 1 are respectively threaded onto the threads at both ends of the bidirectional lead screw 601. A motor 603 is fixedly installed on one side of the outer wall of the installation chamber 2. The output end of the motor 603 is coaxially fixed with one end of the bidirectional lead screw 601.

[0030] Start the motor 603 on one side of the installation chamber 2. The motor 603 drives the bidirectional lead screw 601 to start rotating. The connecting arm 1, which is restricted by the limit rod 602, can only move horizontally. The bidirectional lead screw 601 can drive the two connecting arms 1 to move closer to each other, and the clamping plate 503 can also clamp the workpiece.

[0031] like Figure 2 and Figure 4 As shown, a positioning rod 508 is slidably inserted into the top of the mounting frame 511. The outer wall of the top of the worm gear 505 has several positioning grooves 510 corresponding to the position of the clamping plate 503. A spring 509 is sleeved on the outside of the positioning rod 508. The two ends of the spring 509 are fixedly connected to the end of the positioning rod 508 and the mounting frame 511, respectively.

[0032] When the worm gear 505 rotates, the positioning groove 510 lifts the positioning rod 508, and the spring 509 is also stretched. When the clamping plate 503 reaches the desired position, the spring 509 drives the positioning rod 508 into a positioning groove 510. The accuracy of the adjustment can be judged by the sound.

[0033] like Figure 1 As shown, several corner brackets 4 are fixedly connected to the top and bottom outer walls of the linear motor 3, which can be used to connect the linear motor 3 to external devices.

[0034] like Figure 1 and Figure 2 As shown, the mounting frame 511 is set at an angle, which can prevent the small clamping plate 503 from being obstructed by the large clamping plate 503 during use.

[0035] This utility model provides a precision parts loading and unloading robot, the specific working principle of which is as follows:

[0036] When the device is in operation, the electric telescopic rod 7 is activated to drive the mounting chamber 2 downwards. Then, the two clamping assemblies 5 move to the outside of the new workpiece. The motor 603 on one side of the mounting chamber 2 is activated, driving the bidirectional lead screw 601 to rotate. The connecting arm 1, restricted by the limiting rod 602, can only move horizontally. The bidirectional lead screw 601 can drive the two connecting arms 1 closer together, and the clamping plate 503 can also clamp the workpiece. Then, the linear motor 3 is controlled to drive the electric telescopic rod 7 to move horizontally, moving the workpiece to the processing position. After processing, the finished product is clamped again, and then unloaded, thus completing one process. If the workpiece size needs adjustment, the worm gear 507 is rotated by the handle. The worm gear 507 drives the workpiece through meshing. As the worm gear 505 rotates, the mounting base 501 is driven to rotate synchronously until the two corresponding clamping plates 503 approach each other. When the worm gear 505 rotates, the positioning groove 510 lifts the positioning rod 508, and the spring 509 is also stretched. When the clamping plate 503 reaches the desired position, the spring 509 drives the positioning rod 508 into a positioning groove 510. The accuracy of the adjustment can be judged by the sound. If the clamping plate 503 needs to be replaced, twist the bolt 504 to remove it. The top of the clamping plate 503 is no longer restricted. Push the clamping plate 503 upward to remove it for replacement. Then twist the bolt 504 into the mounting base 501. The bolt 504 can tightly squeeze the clamping plate 503 to ensure that the clamping plate 503 will not move.

[0037] 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. A precision part feeding and unloading manipulator comprising two connecting arms (1) and a linear motor (3), characterized in that: Two connecting arms (1) are located at the bottom of the linear motor (3), and a clamping assembly (5) is mounted at the bottom of each of the two connecting arms (1). The clamping assembly (5) comprises an installation frame (511) fixedly connected to one end of the bottom of the connecting arm (1), and an installation seat (501) rotatably connected to the inside of the installation frame (511). A plurality of limiting grooves (502) are formed in the top outer wall of the installation seat (501) at equal distances, and a plurality of clamping plates (503) are slidably inserted into the limiting grooves (502). The clamping plates (503) are provided with clamping grooves of different sizes.

2. The precise part feeding and unloading robot of claim 1, wherein: A hinge base (506) is fixedly connected to the outer wall of each end of the installation frame (511), and the same worm (507) is rotatably connected to the two hinge bases (506). A worm wheel (505) is coaxially fixed to the rotating shaft of the installation seat (501), and the worm (507) is engaged with the worm wheel (505). The one end of the worm (507) is provided with a driving handle matched therewith.

3. The precise part feeding and unloading robot of claim 1, wherein: The inside of each of the limiting grooves (502) is threadedly connected with two obliquely arranged bolts (504), and the bottom end of each of the two bolts (504) is in contact with the same clamping plate (503).

4. The precise part feeding and unloading robot of claim 1, wherein: The mover of the linear motor (3) is fixedly mounted with a vertically arranged electric telescopic rod (7), and the output end of the electric telescopic rod (7) is fixedly connected with a horizontally arranged installation chamber (2). The top outer wall of the installation chamber (2) is fixedly connected with a guide rod. The outside of the electric telescopic rod (7) is provided with an extension block, and the guide rod is slidably inserted into the extension block.

5. The precise part feeding and unloading robot of claim 4, wherein: A transmission assembly (6) is installed in the installation chamber (2). The transmission assembly (6) comprises two limiting rods (602) fixedly connected to the inside of the installation chamber (2). The two connecting arms (1) are slidably sleeved on the outside of the two limiting rods (602). A horizontally arranged bidirectional screw rod (601) is rotatably connected to the inside of the installation chamber (2). The two connecting arms (1) are respectively threadedly sleeved on the threaded ends of the bidirectional screw rod (601). An electric motor (603) is fixedly mounted on one side of the installation chamber (2). The output end of the electric motor (603) is coaxially fixed to one end of the bidirectional screw rod (601).

6. The precise part feeding and unloading robot of claim 2, wherein: A positioning rod (508) is slidably inserted into the top of the installation frame (511). A plurality of positioning grooves (510) corresponding to the positions of the clamping plates (503) are formed in the top outer wall of the worm wheel (505). A spring (509) is sleeved on the outside of the positioning rod (508). The two ends of the spring (509) are respectively fixedly connected with the end of the positioning rod (508) and the installation frame (511).

7. The precise part feeding and unloading robot of claim 1, wherein: A plurality of corner codes (4) are fixedly connected to the top and bottom outer walls of the linear motor (3).

8. The precise part feeding and unloading robot of claim 1, wherein: The installation frame (511) is obliquely arranged.

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