CN211250037U - Swing arm and helping hand manipulator thereof - Google Patents

Abstract

The utility model belongs to the technical field of the manipulator of helping hand, concretely relates to swing arm and manipulator of helping hand thereof. The swing arm comprises a mounting base, a main arm and a lifting assembly; the main arm is provided with a fulcrum for supporting the main arm to rotate, one side of the fulcrum is provided with a first power part for driving the main arm to lift, and the other side of the fulcrum is provided with the lifting assembly, so that when the main arm rotates around the fulcrum, the lifting assembly movably supports the rotating arm. The utility model discloses can reduce rocking of swing arm, promote swing arm stability in use, and then make helping hand manipulator stable in use.

Description

Swing arm and helping hand manipulator thereof

Technical Field

The utility model relates to a manipulator technical field, concretely relates to swing arm and helping hand manipulator thereof.

Background

The invention discloses a Chinese patent application with a gripper, which is published by the prior application number CN 208914150 UA, and the prior application is a power-assisted mechanical arm with a gripper, which comprises a fixed seat, wherein a rotating seat is rotatably arranged on the fixed seat, and the power-assisted mechanical arm is characterized in that: the top of the rotary seat is fixedly provided with an installation frame, the installation frame is hinged with a main arm and a secondary arm, the ends of the main arm and the secondary arm, which are far away from the installation frame, are hinged with a movable frame together, and the movable frame, the main arm, the secondary arm and the installation frame form a parallelogram structure; a lifting cylinder is hinged between the end part, deviating from the movable frame, of the main arm and the rotary seat, when the lifting cylinder stretches out and draws back, the lifting cylinder drives the main arm to rotate and changes the height of the movable frame, and a clamping assembly used for placing a heavy object is arranged on the movable frame. The main arm of the power-assisted mechanical arm can rotate in the vertical direction, the clamping assembly has a large movable range in the vertical direction, and a heavy object can be conveniently carried to a position with large gradient difference; the disc brake assembly is reasonable in structure, good in brake effect and high in reliability.

However, in the process of up-and-down swinging, the main arm of the power-assisted mechanical arm is lifted only through one cylinder, and when a heavy object is clamped, the driving force of the cylinder is large, so that the cylinder is overloaded, the work of the cylinder is not facilitated, and meanwhile, the main arm is stressed greatly to form shaking, so that the whole use stability of the mechanical arm is poor, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a swing arm and helping hand manipulator thereof to improve the stability in use of manipulator, reduce the atress environment of swing arm, the whole security that lifting machine tool hand used.

In order to solve the technical problem, the utility model provides a swing arm, which comprises a mounting seat, a main arm and a lifting component;

the main arm is provided with a fulcrum for supporting the main arm to rotate, one side of the fulcrum is provided with a first power part for driving the main arm to lift, and the other side of the fulcrum is provided with the lifting assembly, so that the lifting assembly is suitable for movably supporting the rotary arm when the main arm rotates around the fulcrum.

Further, the lifting assembly comprises a lifting frame, an auxiliary arm and a second power part for driving the lifting frame to lift;

the main arm is hinged with the lifting frame;

the auxiliary arm is arranged in parallel with the main arm and is hinged with the lifting frame.

Further, the auxiliary arm is hinged with the mounting seat;

the main arm is hinged with the mounting seat, and the hinged point is superposed with the fulcrum;

the hinge point of the auxiliary arm and the mounting seat is a hinge point I, the hinge point of the auxiliary arm and the lifting frame is a hinge point II, the hinge point of the main arm and the lifting frame is a hinge point III, and the hinge point I, the hinge point II, the hinge point III and the fulcrum are four end points of a parallelogram.

Further, the lifting frame comprises a first vertical plate and a second vertical plate which are arranged at intervals;

a first connecting shaft is arranged between the first vertical plate and the second vertical plate, and the first vertical plate, the second vertical plate and the first connecting shaft form an H-shaped structure;

a second connecting shaft positioned between the first vertical plate and the second vertical plate is arranged above the connecting shaft;

and the power part is rotationally connected with the second connecting shaft through a joint bearing.

In another aspect, the present invention further provides a power-assisted manipulator, which includes an arm mounted with any one of the above-mentioned swing arms.

The beneficial effects of the utility model are that, the utility model discloses a main arm is guaranteeing through the lifting unit that the main arm is playing good support around the fulcrum rotation process in the use, and then has promoted the job stabilization nature of main arm, ensures the overall stability of helping hand manipulator.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an assembled perspective view of a swing arm assembly and a clamp assembly.

Fig. 2 is a perspective view of the lift assembly.

Fig. 3 is a schematic view of an assembly structure of the swing arm assembly and the power-assisted manipulator.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Examples

As shown in fig. 1, the present embodiment 1 provides a swing arm, which includes a mount 1, a main arm 2, and a lifting assembly 30; the main arm 2 is provided with a fulcrum 4 for supporting the main arm 2 to rotate, one side of the fulcrum 4 is provided with a first power part 5 for driving the main arm 2 to lift, and the other side of the fulcrum 4 is provided with the lifting assembly 30, so that when the main arm 2 rotates around the fulcrum 4, the lifting assembly 30 movably supports the main arm 2.

Specifically, when the main arm 2 works, when the working end needs to rise, the first power part 5 drives the non-working end of the main arm 2 to be pressed downwards, the main arm 2 rotates around the fulcrum 2, the working end is lifted, meanwhile, the lifting assembly 30 rises, the main arm rising end is guaranteed to be supported through the lifting assembly 30 all the time in the rotating process, dynamic support is achieved, and the working stability of the main arm 2 is guaranteed.

In this embodiment, the pivot 4 is a hinge point, which facilitates the rotation of the main arm 2.

As an alternative embodiment of the lifting assembly.

As shown in fig. 2, the lifting assembly 30 includes a lifting frame 31, a sub-arm 32 and a second power member 33 for driving the lifting frame 31 to lift; the main arm 2 is hinged with the lifting frame 31; the secondary arm 32 is arranged parallel to the primary arm 2 and is hingedly connected to the lifting frame 31. Specifically, the main arm 2 and the auxiliary arm 32 are assembled into an integral structure through the lifting frame 3, the structure is compact, and the occupied space is small.

In this embodiment, the auxiliary arm 32 is hinged to the mounting base 1; the main arm 2 is hinged with the mounting base 1, and the hinged point is superposed with the fulcrum 4; the hinge point of the auxiliary arm 32 and the mounting seat 1 is a hinge point I, the hinge point of the auxiliary arm 32 and the lifting frame 31 is a hinge point II, the hinge point of the main arm 2 and the lifting frame 3 is a hinge point III, and the hinge point I, the hinge point II, the hinge point III and the fulcrum are four end points of a parallelogram. The main arm 2 and the auxiliary arm 32 are ensured not to be blocked in the process of rotating around the fulcrum 4.

As an alternative embodiment of the lifting frame

Referring to fig. 2, the lifting frame 31 includes a first riser 311 and a second riser 312 arranged at intervals; a first connecting shaft 6 is arranged between the first vertical plate 311 and the second vertical plate 312, the first vertical plate 311, the second vertical plate 312 and the first connecting shaft 6 form an H-shaped structure, and a lifting frame of the H-shaped structure has the advantages of good structural strength and difficult deformation, so that the main arm 2 and the auxiliary arm 32 are not interfered by other external forces in the movement process;

a second connecting shaft 7 positioned between the first vertical plate 311 and the second vertical plate 312 is arranged above the first connecting shaft 6; the second power member 33 is rotatably connected to the second connecting shaft 7 by a joint bearing. And the phenomenon of locking of each hinge point in the lifting process is ensured.

Example 2

See fig. 3, the utility model also provides a helping hand manipulator, including installing above-mentioned swing arm, promote the stability of helping hand manipulator's whole work.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. The utility model provides a swing arm, includes the mount pad, its characterized in that:

the lifting device also comprises a main arm and a lifting component;

the main arm is provided with a fulcrum for supporting the main arm to rotate, one side of the fulcrum is provided with a first power part for driving the main arm to lift, and the other side of the fulcrum is provided with the lifting assembly, so that when the main arm rotates around the fulcrum, the lifting assembly movably supports the rotating arm.

2. The swing arm according to claim 1, wherein:

the lifting assembly comprises a lifting frame, an auxiliary arm and a second power part for driving the lifting frame to lift;

the main arm is hinged with the lifting frame;

the auxiliary arm is arranged in parallel with the main arm and is hinged with the lifting frame.

3. The swing arm according to claim 2, wherein:

the auxiliary arm is hinged with the mounting seat;

the main arm is hinged with the mounting seat, and the hinged point is superposed with the fulcrum;

the hinge point of the auxiliary arm and the mounting seat is a hinge point I, the hinge point of the auxiliary arm and the lifting frame is a hinge point II, the hinge point of the main arm and the lifting frame is a hinge point III, and the hinge point I, the hinge point II, the hinge point III and the fulcrum are four end points of a parallelogram.

4. The swing arm according to claim 2, wherein:

the lifting frame comprises a first vertical plate and a second vertical plate which are arranged at intervals;

a first connecting shaft is arranged between the first vertical plate and the second vertical plate, and the first vertical plate, the second vertical plate and the first connecting shaft form an H-shaped structure;

a second connecting shaft positioned between the first vertical plate and the second vertical plate is arranged above the connecting shaft;

and the power part is rotationally connected with the second connecting shaft through a joint bearing.

5. A power-assisted manipulator, characterized in that a swing arm according to any one of claims 1 to 4 is mounted.

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