CN219404332U

CN219404332U - Mechanical arm

Info

Publication number: CN219404332U
Application number: CN202223372252.6U
Authority: CN
Inventors: 张圣尧; 袁海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-07-25
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm which comprises an active driving arm, wherein a hydraulic valve is fixedly connected to the inside of the active driving arm, hydraulic rods are fixedly connected to the two ends of the hydraulic valve, a power driving rod is movably connected to the inside of the hydraulic rods, one end of the power driving rod is sleeved with an active telescopic rod, the surface of the active telescopic rod is clamped with a fixed pipe orifice, connecting rod guard arms are arranged on the two sides of the fixed pipe orifice in parallel, a resistor is fixedly connected to the inside of the connecting rod guard arms, the improved mechanical arm reduces kinetic energy impact caused by changing movement, the swing amplitude of the mechanical arm is controlled, friction among parts is reduced through a buffer device, the vibration amplitude is reduced, the contact area is enlarged, rough texture materials are utilized, the grabbing friction force is increased, and meanwhile, the anti-skid convex plates form a front-narrow and rear-wide shape by utilizing the length difference of the rotating rods, so that the possibility of grabbing objects is effectively avoided.

Description

Mechanical arm

Technical Field

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm.

Background

The mechanical arm refers to a complex system with high precision, multiple inputs and multiple outputs, high nonlinearity and strong coupling. Because of the unique operation flexibility, the mechanical arm is widely applied to the fields of industrial assembly, safety, explosion prevention and the like, meanwhile, due to the convenience and regularity of the mechanical arm, the mechanical arm can replace manpower when in repeated work or gravity work, but because the internal structure of the mechanical arm is complex, when the mechanical arm is started to carry goods, the equipment is damaged due to impact force caused by power start and friction force generated when the mechanical arm is carried and turned.

The manipulator is an automatic operation device which can simulate some action functions of a human hand and an arm and is used for grabbing and carrying objects or operating tools according to a fixed program, and is characterized in that various expected operations can be completed through programming, and the manipulator has the advantages of the human hand and the manipulator in terms of structure and performance.

The mechanical arm uses the clamping jaw to clamp the object, but the existing clamping jaw generally cannot clamp the object along the horizontal direction, the contact area between the clamping jaw and the object is small, the object clamping is not firm, and the object easily slides from the clamping jaw.

The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the damping structure of the mechanical arm structure consists of specified products, so that the selectivity and the universality are not rich; 2. the mechanical arm uses the clamping jaw to clamp the object, but the existing clamping jaw generally cannot clamp the object along the horizontal direction, the contact area between the clamping jaw and the object is small, the object clamping is not firm, and the object easily slides from the clamping jaw.

Disclosure of Invention

The utility model aims to provide a mechanical arm so as to solve the problems that the damping structure provided in the background art is not rich in selectivity and universality and the clamping area is small. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a robotic arm, includes the initiative arm that drives, the inside fixedly connected with hydraulic valve of initiative arm that drives, the both ends fixedly connected with hydraulic pressure pole of hydraulic pressure valve, the inside swing joint of hydraulic pressure pole has the power drive pole, the one end of power drive pole has cup jointed the initiative telescopic link, the surface joint of initiative telescopic link has fixed mouth of pipe, fixed mouth of pipe's both sides parallel arrangement has the connecting rod arm protector, the inside fixedly connected with resistance ware of connecting rod arm protector, the one end spiro union of resistance ware has the rotation connecting rod, the surface swing joint of rotation connecting rod has the steering column, the one end swing joint of steering column has driven arm, the inside fixedly connected with elastic material protection film of driven arm, the inside fixedly connected with buffer, the one end fixedly connected with damping rod of buffer, the surface joint of damping rod has the movable rod, the outside fixedly connected with driven telescopic link of movable rod, the one end fixedly connected with motor box, the one end fixedly connected with push rod of motor box, the one end fixedly connected with tooth bar, the one end swing joint has the bull stick, the first end of tooth bar has the dog, the first end of tooth bar has the swing joint, the first end of tooth bar has the first end, the dog, the first end of tooth is connected with.

Further preferably, the outer surface of the fixed pipe orifice is in threaded connection with the driven driving arm.

Further preferably, the rotating link is located coaxially between the gear in the steering lever and the link arm gear.

Further preferably, the surface of the rotating shaft of the resistor is designed with a resistance spring structure.

Further preferably, the damping device is designed internally as a force-releasing spring.

Further preferably, the inner side of the anti-slip convex plate is provided with a staggered rubber grain convex structure.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the swing amplitude of the mechanical arm is controlled by reducing kinetic energy impact caused by changing movement, the friction between parts is reduced by the buffer device, the vibration amplitude is reduced, the shake of the mechanical arm caused by inertia and other reasons is reduced by increasing resistance, meanwhile, the product shake caused by large power output is reduced due to resistance, and the movement is more stable.

According to the utility model, the contact area is enlarged, the grabbing friction force is increased by utilizing the rough texture materials, and meanwhile, the anti-skid convex plate is formed into a form with narrow front and wide rear by utilizing the length difference of the rotating rod, so that the possibility of falling off of the grabbed objects is effectively avoided.

Drawings

FIG. 1 is a schematic diagram of the front internal structure of the present utility model;

FIG. 2 is a schematic side view of the internal structure of the present utility model;

FIG. 3 is a schematic elevational view of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1 at a.

In the figure: 1. an active arm; 2. a hydraulic valve; 3. a hydraulic rod; 4. a power driving rod; 5. an active telescopic rod; 6. fixing the pipe orifice; 7. a connecting rod arm guard; 8. a resistor; 9. rotating the connecting rod; 10. a steering lever; 11. a driven drive arm; 12. an elastic material protective film; 13. a buffer device; 14. a vibration damping rod; 15. a movable rod; 16. a driven telescopic rod; 17. a motor box; 18. a push rod; 19. a toothed bar; 20. a clamping gear; 21. a protective frame; 22. a first rotating lever; 23. a second rotating rod; 24. an anti-slip convex plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the mechanical arm comprises a driving arm 1, wherein the inside of the driving arm 1 is fixedly connected with a hydraulic valve 2, two ends of the hydraulic valve 2 are fixedly connected with a hydraulic rod 3, the inside of the hydraulic rod 3 is movably connected with a power driving rod 4, one end of the power driving rod 4 is sleeved with a driving telescopic rod 5, the surface of the driving telescopic rod 5 is clamped with a fixed pipe orifice 6, two sides of the fixed pipe orifice 6 are parallelly provided with connecting rod guard arms 7, the inside of the connecting rod guard arms 7 is fixedly connected with a resistor 8, one end of the resistor 8 is in threaded connection with a rotary connecting rod 9, the outer surface of the rotary connecting rod 9 is movably connected with a steering rod 10, one end of the steering rod 10 is movably connected with a driven driving arm 11, the inside of the driven driving arm 11 is fixedly connected with an elastic material guard film 12, the inside fixedly connected with buffer 13 of elastic material protection film 12, the one end fixedly connected with shock attenuation pole 14 of buffer 13, the surface joint of shock attenuation pole 14 has movable rod 15, the surface fixedly connected with driven telescopic link 16 of movable rod 15, the one end fixedly connected with motor box 17 of driven telescopic link 16, the one end fixedly connected with push rod 18 of motor box 17, the one end fixedly connected with toothed bar 19 of push rod 18, the side meshing of toothed bar 19 has latch wheel 20, the one end rotation of latch wheel 20 is connected with protection frame 21, the both ends rotation of protection frame 21 are connected with first bull stick 22, the one end swing joint of first bull stick 22 has second bull stick 23, the one end fixedly connected with antiskid flange 24 of second bull stick 23.

In this embodiment, as shown in fig. 1, the outer surface of the fixed nozzle 6 is screwed to the driven arm 11, and it should be noted that the fixed nozzle 6 can be prevented from loosening by screw fixation.

In this embodiment, as shown in fig. 1 and 2, the rotating connecting rod 9 is located coaxially between the gear in the steering rod 10 and the gear in the connecting rod arm guard 7, and it should be noted that the mechanical movement of the mechanical arm can be ensured by rotating the connecting rod 9, and the resistor 8 can be driven in the arm guard.

In this embodiment, as shown in fig. 1 and 2, the surface of the rotating shaft of the resistor 8 is designed with a resistance spring structure, and it should be noted that by increasing resistance, the shake of the mechanical arm caused by inertia and other reasons is reduced, meanwhile, due to resistance, the product shake caused by large power output is reduced, and the movement is smoother.

In this embodiment, as shown in fig. 1, the buffer device 13 is designed as a force-releasing spring, and it should be noted that, by adopting a spring structure, the friction of parts caused by the shake of the driven driving arm 11 can be reduced, and the use loss caused by the shake can be reduced.

In this embodiment, as shown in fig. 1 and 2, the inner side of the anti-slip convex plate 24 is designed with a staggered rubber pattern protrusion structure, and it should be noted that the friction-resistant material on the surface of the anti-slip convex plate 24 effectively improves the gripping force for grabbing the article and reduces the possibility of falling off.

The application method and the advantages of the utility model are as follows: when the mechanical arm is used, the working process is as follows:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, firstly, an article to be carried is selected, the mechanical arm rotates to a corresponding direction, the hydraulic valve 2 in the driving arm 1 operates, power is transmitted to the power driving rod 4 through the hydraulic rod 3, the driving telescopic rod 5 drives the mechanical arm to move forward through the fixed pipe orifice 6, the rotating connecting rod 9 assists the driven arm 11 to rotate to the upper part of the article, the resistor 8 in the connecting rod arm 7 also starts to rotate in the rotating process, the steering rod 10 connected through a gear starts to rotate, the driven telescopic rod 16 in the driven arm 11 forwards, the elastic material protective film 12 drives the movable rod 15 to be linked with the steering rod 10, the vibration reduction rods 14 on two sides of the movable rod 15 move in the buffer device 13, when the driven telescopic rod 16 pushes the anti-slip convex plate 24 to a target position, the motor in the motor box 17 pushes the push rod 18 forwards, the toothed rod 19 drives the clamping gear 20 to rotate, the first rotating rod 22 and the second rotating rod 23 at two ends of the protective frame 21 simultaneously rotate to two sides under the driving of the gear force, and after the article is grabbed, the push rod 18 backwards moves to enable the anti-slip convex plate 24 to grab the article.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A mechanical arm, comprising an active driving arm (1), characterized in that: the inside fixedly connected with hydraulic valve (2) of initiative arm (1), the both ends fixedly connected with hydraulic pressure pole (3) of hydraulic pressure valve (2), the inside swing joint of hydraulic pressure pole (3) has power driving lever (4), the inside fixedly connected with flexible pole (5) of initiative arm (4), the surface joint of initiative arm (5) has fixed mouth of pipe (6), the both sides parallel arrangement of fixed mouth of pipe (6) has connecting rod arm (7), the inside fixedly connected with resistor (8) of connecting rod arm (7), the one end spiro union of resistor (8) has rotation connecting rod (9), the surface swing joint of rotation connecting rod (9) has steering column (10), the one end swing joint of steering column (10) has driven arm (11), the inside fixedly connected with elastic material protection film (12) of driven arm (11), the inside fixedly connected with buffer unit (13) of elastic material protection film (12), the one end fixedly connected with motor (14) of buffer unit (13), the one end spiro union of damping rod (14) has flexible box (16) of driven rod (16), one end fixedly connected with push rod (18) of motor box (17), one end fixedly connected with ratch (19) of push rod (18), the side meshing of ratch (19) has card gear (20), the one end rotation of card gear (20) is connected with protects frame (21), the both ends rotation of protecting frame (21) are connected with first bull stick (22), one end swing joint of first bull stick (22) has second bull stick (23), one end fixedly connected with antiskid flange (24) of second bull stick (23).

2. A robotic arm as claimed in claim 1, wherein: the outer surface of the fixed pipe orifice (6) is in threaded connection with the driven driving arm (11).

3. A robotic arm as claimed in claim 1, wherein: the rotating connecting rod (9) is positioned between a gear in the steering rod (10) and a gear of the connecting rod arm protector (7) coaxially.

4. A robotic arm as claimed in claim 1, wherein: a resistance spring structure is designed on the surface of a rotating shaft of the resistor (8).

5. A robotic arm as claimed in claim 1, wherein: the damping device (13) is internally designed as a force-releasing spring.

6. A robotic arm as claimed in claim 1, wherein: the inner side of the anti-skid convex plate (24) is provided with a staggered rubber grain convex structure.