CN209956917U

CN209956917U - Mechanical grabbing structure

Info

Publication number: CN209956917U
Application number: CN201920403477.2U
Authority: CN
Inventors: 陈春强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-01-17
Anticipated expiration: 2029-03-27

Abstract

The utility model discloses a mechanical grabbing structure, the utility model relates to the field of packaging machinery, in particular to a mechanical grabbing structure, which comprises two symmetrical clamping arms, wherein the lower end of each clamping arm is provided with a clamping part, the upper end of each clamping arm is respectively provided with a first electromagnet, the magnetic poles of the two first electromagnets are arranged oppositely, a bottom plate is further attached and arranged at the rear part of each clamping arm, a rotating shaft is further arranged on each clamping arm, each rotating shaft is fixed on the bottom plate, an acting force for blocking the closing of the clamping arm is further arranged between the bottom plate and the clamping arm, and the grabbing power is provided for the mechanical grabbing structure by utilizing the principle of like-polarity repulsion and opposite-polarity attraction of the electromagnets, so that; and the clamping arm has an acting force for preventing the clamping arm from being closed, and the acting force can ensure the resetting of the clamping arm after the clamping arm is closed.

Description

Mechanical grabbing structure

Technical Field

The utility model relates to the field of packaging machinery, especially, relate to machinery snatchs structure.

Background

In the process of automatic packaging, the grabbing of objects is necessarily involved, and in the prior art, a hand type mechanical claw is generally adopted for bottle-shaped objects, and the hand type mechanical claw has enough stability. However, most of the existing hand type mechanical claws are driven by cylinders and the like, the structure is complex, the price is high, and certain simple application scenes are not free from being used in large and small sizes.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a machinery snatchs the structure optimizes machinery and snatchs the structure, and the machinery of having made a simple and easy version snatchs the structure, great complexity that has alleviateed the structure, the cost is also reduced, and each part is replaced easily, the maintenance of being convenient for.

The utility model adopts the technical proposal that: the utility model provides a machinery snatchs structure, includes the arm lock of two symmetries, and each arm lock lower extreme sets up to press from both sides and gets portion, and the upper end of each arm lock is equipped with a first electro-magnet respectively, and the magnetic pole of two first electro-magnets sets up relatively, and the rear of arm lock is still attached to be provided with the bottom plate, still is provided with the axis of rotation on each arm lock, and each axis of rotation is fixed in the bottom plate, still there is the closed effort of hindrance arm lock between.

As a further improvement, the cover is equipped with the torsional spring in each axis of rotation, and the one end of torsional spring is fixed in the surface of the arm lock that corresponds, and the other end is fixed with the stand that can make the torsional spring be in resilient state, the stand sets up outside the scope of sweeping at the arm lock.

As a further improvement, the utility model is provided with a rotary hole in each arm lock, be provided with ball bearing in the rotatory sky, ball bearing's inner circle is fixed in the axis of rotation that corresponds, and ball bearing's outer lane is fixed in and rotates the hole.

As a further improvement of the utility model, the arm lock top still is provided with the casing, the upper portion of arm lock and bottom plate is wrapped up by the casing, still be provided with the connecting portion that are used for the connecting cable wire on the casing.

As a further improvement, the utility model also comprises a cross rod, a metal sliding sleeve is connected in the horizontal direction of the cross rod in a sliding manner, and two ends of the cross rod are respectively provided with a second electromagnet.

As a further improvement, the metal sliding sleeve lower extreme is provided with step motor, step motor's output winding has the cable wire, the free end and the connecting portion of cable wire are fixed.

As a further improvement of the utility model, the system also comprises a computer, the computer is connected with the first electromagnet, the second electromagnet and the stepping motor signal. .

The utility model has the advantages that: the principle of homopolar repulsion and opposite attraction of the electromagnet is utilized to provide grabbing power for the mechanical grabbing structure, so that the electric power grabbing device is economical and environment-friendly and can be used for multiple times; and the clamping arm has an acting force for preventing the clamping arm from being closed, and the acting force can ensure the resetting of the clamping arm after the clamping arm is closed.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic view of the connection of the clamp arm to the base plate;

fig. 2 is a schematic structural diagram of the present invention.

Wherein, 1-clamping arm, 2-clamping part, 3-first electromagnet, 4-bottom plate, 5-rotating shaft, 6-torsion spring, 7-upright post, 8-clamping block, 9-shell, 10-cross bar, 11-metal sliding sleeve, 12-stepping motor, 13-steel cable, 14-second electromagnet.

Detailed Description

As shown in fig. 1 and 2, a mechanical grabbing structure includes two symmetrical clamping arms 1, preferably, the clamping arms 1 are arranged at a distance, a clamping part 2 is arranged at the lower end of each clamping arm 1, a first electromagnet 3 is arranged at the upper end of each clamping arm 1, and the magnetic poles of the two first electromagnets 3 are arranged oppositely, i.e. a repulsive force can be generated between the two first electromagnets 3. Preferably, the first electromagnet 3 is connected with the clamping arm 1 through threads. The bottom plate 4 is attached to arm lock 1 still, is provided with axis of rotation 5 on the arm lock 1, and axis of rotation 5 is fixed in bottom plate 4, and arm lock 1 can use axis of rotation 5 to rotate as the centre of a circle, and when two arm lock 1 rotated, the mouth that opens of the portion 2 of pressing from both sides of 1 lower extreme of arm lock can grow or diminish. Of course, the gripping part 2 of the arm 1 needs to extend a part of the base plate 4 for gripping. In order to reduce the rotation of the clamping arm 1, the rotation process is more flexible, and a rotation hole is further formed in the contact position of the clamping arm 1 and the rotation shaft 5.

The bottom plate 4 is further provided with a stand column 7, and the stand column 7 is arranged outside the sweeping range when the clamping arm 1 rotates. The upright post 7 is positioned outside the sweeping range, so that the upright post 7 can be prevented from colliding with the clamping arm 1, and the opening formed by the clamping arm 1 is enlarged. The sweep range refers to the area swept over the base plate 4 when the clamp arm 1 is rotated. Still the cover is equipped with torsional spring 6 on axis of rotation 5, and torsional spring 6 is in the resilience state, and the foot of stretching of the one end of torsional spring 6 is fixed on stand 7, and the foot of stretching of the other end is fixed on the upper surface of arm lock 1. For the convenience of installation, the upper surface of arm lock 1 is provided with the fixture block 8 that the foot was stretched in the joint. The torsion spring 6 functions to provide a force that interacts with the repulsive force generated by the first electromagnet 3. In combination with the action of the torsion spring 6, the springback state here means that the extending legs at the two ends of the torsion spring 6 generate elastic forces which are away from each other, and the elastic forces are also the action of the elastic forces, so that the clamping arm 1 has elastic forces for increasing the opening. In order to make the clamping arm 1 more smooth in the rotating process, a ball bearing (not shown in the figure) is arranged in the rotating hole, specifically, an inner ring of the ball bearing is fixed on the rotating shaft 5, and an outer ring of the ball bearing is fixed on the rotating hole.

The first electromagnet 3 is electrically connected to a dc power source (not shown) such as a battery. A power switch is arranged between the direct current power supply and the first electromagnet 3.

A shell 9 is further arranged above the two clamping arms 1, the upper portions of the base plate 4 and the clamping arms 1 are wrapped and fixed by the shell 9, damage to personnel caused by falling off of parts in the using process is prevented, and a connecting portion of a steel cable 13 is further arranged above the shell 9.

The mechanical grabbing structure further comprises a cross rod 10, a metal sliding sleeve 11 is sleeved on the cross rod 10, the metal sliding sleeve 11 can slide left and right on the cross rod 10, two ends of the cross rod 10 are respectively provided with a second electromagnet 14, the preferred second electromagnet 14 selects a circular electromagnet, and the second electromagnet 14 is connected with a direct-current power supply. The second electromagnet 14 is fixedly sleeved at two ends of the cross rod 10. A stepping motor 12 is fixed below the metal sliding sleeve 11, a steel cable 13 is wound on an output end of the stepping motor 12, and a free end of the steel cable 13 is fixed at the connecting part.

The mechanical grabbing structure further comprises a computer (not shown in the figure), wherein the computer refers to equipment with logic operation capacity and storage capacity, and common expression forms of the computer, a single chip microcomputer and a PLC are provided. The computer is in signal connection with the first electromagnet 3, the second electromagnet 14 and the stepping motor 12.

In the use of the device, the user can use the device,

1. the computer adjusts the attraction force or the repulsion force generated by the second electromagnet 14, and adjusts the relative position of the metal sliding sleeve 11 on the cross bar 10, so that the clamping arm 1 is positioned above the bottle-shaped object.

2. The computer adjusts the rotation of the stepping motor 12 to extend the length of the steel cable 13, so that the clamping arm 1 contacts with the bottle-shaped object.

3. The computer starts the first electromagnet 3 to be electrified, and the clamping part 2 clamps the bottle-shaped object; the length of the wire rope 13 is shortened.

4. The computer adjusts the second electromagnet 14, and adjusts the relative position of the metal sliding sleeve 11 on the cross bar 10, and moves the clamping arm 1 to the target ground.

5. The computer adjusts the rotation of the stepping motor 12, extends the length of the steel cable 13, and powers off the first electromagnet 3, so that the bottle-shaped object falls off.

In the above steps, the computer adjusts the second electromagnet 14 to generate the attraction force or the repulsion force, which can be controlled by the magnitude and the direction of the direct current, and the change of the magnitude of the direct current belongs to the common electrical technology. After the bottle-shaped object falls off, the clamping arm 1 returns to the original position under the action of the torsion spring 6 to wait for the next instruction.

The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

Claims

1. The utility model provides a structure is snatched to machinery which characterized in that: including arm lock (1) of two symmetries, each arm lock (1) lower extreme sets up to press from both sides and gets portion (2), and the upper end of each arm lock (1) is equipped with one first electro-magnet (3) respectively, and the magnetic pole of two first electro-magnets (3) sets up relatively, and the rear of arm lock (1) is still attached to be provided with bottom plate (4), still is provided with axis of rotation (5) on each arm lock (1), and each axis of rotation (5) are fixed in bottom plate (4), still there is the closed effort of hindrance arm lock (1) between bottom plate (4) and arm lock (1).

2. The mechanical grasping configuration according to claim 1, wherein: each axis of rotation (5) is gone up the cover and is equipped with torsional spring (6), and the one end of torsional spring (6) is fixed in the surface of corresponding arm lock (1), and the other end is fixed with stand (7) that can make torsional spring (6) be in the resilience state, stand (7) set up outside the scope of arm lock (1) sweeping.

3. The mechanical grasping configuration according to claim 2, wherein: each clamping arm (1) is further provided with a rotating hole, a ball bearing is arranged in each rotating hole, the inner ring of each ball bearing is fixed to the corresponding rotating shaft (5), and the outer ring of each ball bearing is fixed to the corresponding rotating hole.

4. The mechanical grasping configuration according to claim 1, wherein: still be provided with casing (9) above arm lock (1), the upper portion of arm lock (1) and bottom plate (4) is wrapped up by casing (9), still be provided with the connecting portion that are used for connecting cable wire (13) on casing (9).

5. The mechanical grasping configuration according to claim 4, wherein: still include horizontal pole (10), it has metal sliding sleeve (11) to have slided in horizontal direction on horizontal pole (10), the both ends of horizontal pole (10) respectively are provided with a second electro-magnet (14).

6. The mechanical grasping configuration according to claim 5, wherein: the lower end of the metal sliding sleeve (11) is provided with a stepping motor (12), the output end of the stepping motor (12) is wound with a steel cable (13), and the free end of the steel cable (13) is fixed with the connecting part.

7. The mechanical grasping configuration according to claim 6, wherein: the device also comprises a computer, wherein the computer is in signal connection with the first electromagnet (3), the second electromagnet (14) and the stepping motor (12).