Steering structure of mechanical arm

Abstract

The utility model relates to the technical field of mechanical arms, in particular to a steering structure of a mechanical arm, which comprises a fixing frame, a rotating shaft is inserted into the inner wall of the fixing frame, the outer surface of the rotating shaft is fixedly connected with a mounting sleeve, the rotating shaft penetrates through the front surface of the fixing frame and is provided with a worm gear, the lower surface of the worm gear is meshed with a worm, and the worm gear is fixedly connected with the mounting sleeve. A motor body is arranged on the right side surface of the worm; and the connecting frame is mounted on the left side surface of the mounting sleeve, and a telescopic rod is arranged on the left side surface of the connecting frame. By starting an electric push rod, the electric push rod can drive a top block to descend, so that the top block can drive an extrusion block to move downwards, the extrusion block can press a sponge cushion in a through frame, lubricating oil absorbed in the sponge cushion can leak into the mounting box body through a leakage net, and the lubricating oil can fall on the outer surfaces of a worm wheel and a worm; and lubricating oil can be integrally added conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a steering structure of a mechanical arm. Background Art

[0002] With the continuous development of the current industry and machinery manufacturing industry, the use of CNC machine tools has gradually occupied a dominant position. The robotic arms of CNC machine tools are mainly used for automatic loading, unloading, clamping and placing the finished workpieces in the silo. It is an automated equipment that reduces the labor intensity and labor costs of manual production, increases corporate profits, avoids the occurrence of work-related accidents, and the robotic arms can work continuously, which improves the processing efficiency of CNC machine tools.

[0003] In this regard, China applied for patent number: CN210678775U, which discloses a flexibly steerable mechanical arm, including a base and a mechanical operating claw, a control box is provided above the base, the control box and the base are connected by a first electric telescopic rod, fixed plates are symmetrically provided on both sides of the top of the control box, a first through hole is provided on the fixed plate, the two first through holes are connected by a first rotating shaft, a first bearing is provided at the connection between the first rotating shaft and the first through hole, a connecting block located between the two fixed plates is sleeved on the outside of the first rotating shaft, a second electric telescopic rod is provided on one side of the connecting block, a mechanical operating claw is provided at one end of the second electric telescopic rod, and driven wheels are symmetrically provided at both ends of the first rotating shaft on the side away from the two fixed plates. The utility model is a flexibly steerable mechanical arm, the design is simple to operate, the manufacturing cost is low, the use range of the mechanical arm is expanded, the limitations of actual use are reduced, the movement of the mechanical arm is more flexible and changeable, and the work efficiency is improved.

[0004] However, in actual use, due to the design of the control box, the belt can only drive the driven wheel to rotate upward. When the driven wheel rotates downward, it will be restricted by the control box. At the same time, when the turbine and worm rotate frequently without lubrication, the rotation will be insensitive, so it is necessary to lift up the turbine and worm for lubrication. Therefore, it has become an urgent problem to be solved for us to perfect and improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a steering structure of a robotic arm to solve the problem raised in the above background technology that due to the design of the control box, the belt can only drive the driven wheel to rotate upward, and when the driven wheel rotates downward, it will be restricted by the control box, and at the same time, when the turbine and the worm rotate frequently without lubrication, the rotation will be insensitive, so it is necessary to lift up the turbine and the worm for lubrication.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steering structure of a mechanical arm, comprising a fixed frame, a rotating shaft is inserted and installed on the inner wall of the fixed frame, a mounting sleeve is fixedly connected to the outer surface of the rotating shaft, a worm wheel is arranged on the front surface of the rotating shaft passing through the fixed frame, a worm is meshedly connected to the lower surface of the worm wheel, and a motor body is arranged on the right side surface of the worm;

[0007] A connecting frame is installed on the left side surface of the mounting sleeve, a telescopic rod is provided on the left side surface of the connecting frame, a mechanical operating claw body is provided on the left side surface of the telescopic rod, a mounting box is provided on the front surface of the fixing frame, a through frame is inserted and installed on the top surface of the mounting box, and a sponge pad and a leakage net are provided on the inner wall of the through frame in sequence from top to bottom.

[0008] Preferably, an electric push rod is fixedly connected to the top surface of the installation box, and a top block is fixedly connected to the top surface of the electric push rod.

[0009] Preferably, a front surface of the top block is fixedly connected with an extrusion block, and the extrusion block is installed above the through frame, and the through frame and the sponge pad are located horizontally with each other.

[0010] Preferably, an output shaft is fixedly connected to the lower surface of the fixing frame, and a second motor is disposed at one end of the output shaft away from the fixing frame.

[0011] Preferably, a mounting bracket is provided on the outer surface of the second motor, a cylinder body is fixedly connected to the lower surface of the mounting bracket, and a bottom plate is fixedly connected to one end of the cylinder body away from the mounting bracket.

[0012] Preferably, the motor body is mounted on the right side surface of the mounting box, and the output end of the motor body passes through the right side surface of the mounting box and is connected to the worm.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The steering structure of the mechanical arm includes a fixed frame, a rotating shaft, a mounting sleeve, a worm gear, a worm, a motor body, a connecting frame, a telescopic rod, a mechanical operating claw body, a mounting box, a through frame, a leakage net, a sponge pad, an extrusion block and a top block. When in use, the motor body is first started, and the worm gear can be driven to rotate by the motor body. Due to the meshing between the worm gear and the worm gear, the worm gear can drive the rotating shaft to rotate, thereby driving the mounting sleeve and the connecting frame to rotate. Then, the telescopic rod can be used to extend and retract, and at the same time, the mechanical operating claw body can grab an object. Subsequently, the design of the fixed frame can drive the rotating shaft to turn up and down as a whole, and the overall steering effect is good. The worm is driven to rotate by the forward and reverse rotation of the motor body, so that the fixed frame will not limit the rotation of the rotating shaft, and then the worm and worm wheel will be installed inside the installation box, and lubricating oil will be put into the inside of the frame, and the lubricating oil will be absorbed by the sponge pad. When it is necessary to add lubricating oil to the worm wheel and worm inside the installation box, the electric push rod is started, and the electric push rod will drive the top block to descend, so that the top block will drive the extrusion block downward, so that the extrusion block will press the sponge pad inside the frame, so that the lubricating oil absorbed inside the sponge pad will leak into the inside of the installation box through the net, so that the lubricating oil will fall on the outer surface of the worm wheel and worm, and it is convenient to add lubricating oil as a whole, which reflects the practicality of the design.

[0015] The steering structure of the robotic arm is provided with an output shaft, a second motor, a mounting frame, a cylinder body and a base plate. When in use, the cylinder body is supported by the base plate, and the height of the mounting frame can be adjusted through the cylinder body, so that the height of the fixed frame can be adjusted. Then, a second motor is installed inside the mounting frame. By starting the second motor, the second motor drives the output shaft and the fixed frame to steer the angle. Therefore, the steering effect of the overall robotic arm is better, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the disassembly of the fixing frame and the installation box structure of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the structure of the rotating shaft and the mechanical operating claw body of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the installation box and the through-frame structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the disassembly of the through frame and the extrusion block structure of the utility model.

[0021] In the figure: 1. fixing frame; 2. rotating shaft; 3. mounting sleeve; 4. worm gear; 5. worm; 6. motor body; 7. connecting frame; 8. telescopic rod; 9. mechanical operation claw body; 10. mounting box; 11. through frame; 12. leakage net; 13. sponge pad; 14. extrusion block; 15. top block; 16. electric push rod; 17. output shaft; 18. second motor; 19. mounting frame; 20. cylinder body; 21. bottom plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , an embodiment provided by the utility model:

[0024] A steering structure of a robotic arm. The worm gear 4, worm 5, motor body 6, mechanical operating claw body 9, sponge pad 13, electric push rod 16, second motor 18 and cylinder body 20 used in the present application are all products that can be directly purchased on the market. Their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here. It includes a fixed frame 1, a rotating shaft 2 is inserted and installed on the inner wall of the fixed frame 1, a mounting sleeve 3 is fixedly connected to the outer surface of the rotating shaft 2, a worm gear 4 is arranged on the front surface of the rotating shaft 2 that passes through the fixed frame 1, a worm 5 is meshingly connected to the lower surface of the worm gear 4, a motor body 6 is arranged on the right side surface of the worm 5, an output shaft 17 is fixedly connected to the lower surface of the fixed frame 1, and a second electric The outer surface of the second motor 18 is provided with a mounting frame 19, and the lower surface of the mounting frame 19 is fixedly connected with a cylinder body 20, and one end of the cylinder body 20 away from the mounting frame 19 is fixedly connected with a bottom plate 21, and the motor body 6 is installed on the right side surface of the mounting box 10, and the output end of the motor body 6 passes through the right side surface of the mounting box 10 and is connected with the worm 5, and the cylinder body 20 is supported by the bottom plate 21, and the height of the mounting frame 19 can be adjusted by the cylinder body 20, so that the height of the fixing frame 1 can be adjusted, and then the second motor 18 is installed inside the mounting frame 19, and by starting the second motor 18, the second motor 18 drives the output shaft 17 and the fixing frame 1 to turn the angle, so the steering effect of the overall robot arm is better;

[0025] A connecting frame 7 is installed on the left side surface of the installation sleeve 3. A telescopic rod 8 is provided on the left side surface of the connecting frame 7. A mechanical operating claw body 9 is provided on the left side surface of the telescopic rod 8. A mounting box 10 is provided on the front surface of the fixing frame 1. A through frame 11 is inserted and installed on the top surface of the mounting box 10. A sponge pad 13 and a leakage net 12 are provided on the inner wall of the through frame 11 from top to bottom. An electric push rod 16 is fixedly connected to the top surface of the mounting box 10. A top block 15 is fixedly connected to the top surface of the electric push rod 16. An extrusion block 14 is fixedly connected to the front surface of the top block 15. The extrusion block 14 is installed above the through frame 11. The positions of the through frame 11 and the sponge pad 13 are mutually horizontal. By starting the motor body 6, the worm 5 can be driven to rotate through the motor body 6. Due to the meshing between the worm 5 and the worm wheel 4, the worm wheel 4 will drive the rotating shaft 2 to rotate, thereby driving the mounting sleeve 3 and the connecting frame 7 to rotate, and then the telescopic rod 8 can be used to extend and retract. At the same time The claw body 9 can be used to grab an object by mechanically operating the claw body 9, and then the design of the fixed frame 1 can drive the rotating shaft 2 to turn up and down as a whole, and the overall turning effect is good. The worm 5 is driven to rotate by the forward and reverse rotation of the motor body 6, so that the fixed frame 1 will not limit the rotation of the rotating shaft 2. Then the worm 5 and the worm wheel 4 will be installed inside the installation box 10, and the lubricating oil will be added to the inside of the frame 11. The lubricating oil will be absorbed by the sponge pad 13. When it is necessary to add lubricating oil to the worm wheel 4 and the worm 5 inside the installation box 10, the electric push rod 16 is started, and the electric push rod 16 will drive the top block 15 to descend, so that the top block 15 will drive the extrusion block 14 downward, so that the extrusion block 14 will press the sponge pad 13 inside the frame 11, so that the lubricating oil absorbed inside the sponge pad 13 will leak into the inside of the installation box 10 through the leakage net 12, so that the lubricating oil will fall on the outer surface of the worm wheel 4 and the worm 5, and it is convenient to add lubricating oil as a whole.

[0026] Working principle: When the staff uses the device, first connect the device to an external power supply to provide power support for the device, and start the motor body 6. The motor body 6 can drive the worm 5 to rotate. Due to the meshing between the worm 5 and the worm wheel 4, the worm wheel 4 will drive the rotating shaft 2 to rotate, thereby driving the installation sleeve 3 and the connecting frame 7 to rotate, and then the telescopic rod 8 can be extended and retracted. At the same time, the object can be grabbed by the mechanical operation claw body 9. Subsequently, the design of the fixed frame 1 can drive the rotating shaft 2 to turn up and down as a whole, and the overall steering effect is good. The worm 5 is driven to rotate by the forward and reverse rotation of the motor body 6, so that the fixed frame 1 will not limit the rotation of the rotating shaft 2. Then the worm 5 and the worm wheel 4 will be installed inside the installation box 10, and lubricating oil is put into the inside of the through frame 11. The lubricating oil will be absorbed by the sponge pad 13. When the installation box 1 needs to be repaired, 0, when adding lubricating oil to the worm wheel 4 and the worm 5 inside, the electric push rod 16 is started, and the electric push rod 16 will drive the top block 15 to descend, so that the top block 15 will drive the extrusion block 14 downward, so that the extrusion block 14 will press the sponge pad 13 inside the through frame 11, so that the lubricating oil absorbed inside the sponge pad 13 will leak into the inside of the installation box 10 through the leakage net 12, so that the lubricating oil will fall on the outer surface of the worm wheel 4 and the worm 5. It is convenient to add lubricating oil as a whole. The cylinder body 20 is supported by the bottom plate 21. The height of the mounting frame 19 can be adjusted by the cylinder body 20, so that the height of the fixing frame 1 can be adjusted. Subsequently, the second motor 18 is installed inside the mounting frame 19. By starting the second motor 18, the second motor 18 drives the output shaft 17 and the fixing frame 1 to turn the angle, so the steering effect of the overall mechanical arm is better. The above is all the working principles of the utility model.

[0027] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A steering structure of a robot arm, comprising a fixed frame (1), wherein a rotating shaft (2) is inserted and installed on the inner wall of the fixed frame (1), characterized in that: The outer surface of the rotating shaft (2) is fixedly connected with a mounting sleeve (3); the front surface of the rotating shaft (2) penetrating the fixed frame (1) is provided with a worm gear (4); the lower surface of the worm gear (4) is meshingly connected with a worm (5); and the right side surface of the worm (5) is provided with a motor body (6); A connecting frame (7), the connecting frame (7) being mounted on the left side surface of the mounting sleeve (3), a telescopic rod (8) being provided on the left side surface of the connecting frame (7), a mechanical operating claw body (9) being provided on the left side surface of the telescopic rod (8), a mounting box (10) being provided on the front surface of the fixing frame (1), a through frame (11) being inserted and mounted on the top surface of the mounting box (10), and a sponge pad (13) and a leakage net (12) being provided on the inner wall of the through frame (11) in sequence from top to bottom.

2. The steering structure of a robot arm according to claim 1, characterized in that: An electric push rod (16) is fixedly connected to the top surface of the installation box (10), and a top block (15) is fixedly connected to the top surface of the electric push rod (16).

3. The steering structure of a robot arm according to claim 2, characterized in that: The front surface of the top block (15) is fixedly connected to an extrusion block (14), and the extrusion block (14) is installed above the through frame (11), and the through frame (11) and the sponge pad (13) are located horizontally with each other.

4. The steering structure of a robot arm according to claim 1, characterized in that: An output shaft (17) is fixedly connected to the lower surface of the fixing frame (1), and a second motor (18) is provided at one end of the output shaft (17) away from the fixing frame (1).

5. The steering structure of a robot arm according to claim 4, characterized in that: The outer surface of the second motor (18) is provided with a mounting frame (19), the lower surface of the mounting frame (19) is fixedly connected to a cylinder body (20), and one end of the cylinder body (20) away from the mounting frame (19) is fixedly connected to a bottom plate (21).

6. The steering structure of a robot arm according to claim 1, characterized in that: The motor body (6) is mounted on the right side surface of the mounting box (10), and the output end of the motor body (6) passes through the right side surface of the mounting box (10) and is connected to the worm (5).

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