CN212706825U

CN212706825U - Pneumatic magnetic clamp

Info

Publication number: CN212706825U
Application number: CN202020511974.7U
Authority: CN
Inventors: 吴松; 刘超
Original assignee: Wuhan Wxyz Technologies Co ltd
Current assignee: Wuhan Wxyz Technologies Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-03-16
Anticipated expiration: 2030-04-09

Abstract

The utility model provides a pneumatic magnetic clamp, which comprises an air cylinder used for pushing a piston rod to slide along an inner chamber of an isolation sleeve, wherein the isolation sleeve is arranged on the outer wall of the bottom side of the air cylinder, and a permanent magnet block is arranged at the lower end of the piston rod through a screw; the permanent magnet block is driven to move in the inner cavity of the isolation sleeve through the up-and-down telescopic motion of the piston rod, and magnetic materials placed at the bottom of the isolation sleeve are sucked and released; the utility model discloses an upper and lower concertina movement of piston rod is realized with exhausting to the admitting air of cylinder gas port to installation permanent magnet piece on the piston rod, when telescopic movement about the piston rod, alright control permanent magnet piece apart from the distance between the magnetic material that the separation sleeve bottom was placed.

Description

Pneumatic magnetic clamp

Technical Field

The utility model relates to a robotechnology field, concretely relates to pneumatic magnetic clamp.

Background

In the grabbing of the magnetic object block, the electromagnet is powered to generate magnetic force to adsorb and grab the magnetic object block, which is commonly adopted at present; the magnitude of the magnetic force of the electromagnet is often related to the number of turns of the coil wound on the magnet and the magnitude of the current supplied to the coil. Therefore, the electromagnet can generate magnetic force when being electrified, the magnitude of the magnetic force is easily interfered by unstable factors such as voltage, current and the like, and the magnetic force of the electromagnet is unstable due to the influence of the current voltage on the magnetic force, so that the magnetic force of the electromagnet is more stable compared with the magnetic force of the permanent magnet block adopted by the utility model; simultaneously to because the electro-magnet needs frequently to get electric and acquire magnetic force, lose electromagnetic force and weaken, also cause the big its life reduction of consumption of electro-magnet like this, for this reason, the utility model discloses a permanent magnet piece then the life-span is longer, even damage it and change maintenance more convenient and fast.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned technique, provide a pneumatic magnetic clamp for solve traditional electro-magnet when adsorbing and snatch the magnetic material, magnetic force is unstable and life is poor, is not convenient for change the maintenance.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a pneumatic magnetic clamp comprises a cylinder for pushing a piston rod to slide along an inner cavity of an isolation sleeve, wherein the isolation sleeve is arranged on the outer wall of the bottom side of the cylinder, and a permanent magnet block is arranged at the lower end part of the piston rod through a screw; the permanent magnet block is driven to move in the inner cavity of the isolation sleeve through the up-and-down telescopic motion of the piston rod, and magnetic materials placed at the bottom of the isolation sleeve are attracted and released.

Further, the side wall of the cylinder is also provided with a cylinder air port, and the up-and-down telescopic motion of the piston rod is realized through the air intake and the air exhaust of the cylinder air port.

Further, the piston rod pushes the permanent magnet block to move to the lowest point along the inner cavity of the isolation sleeve, and a safety gap is kept between the permanent magnet block and the lower end face of the isolation sleeve.

Furthermore, the lower end of the piston rod realizes the grabbing of magnetic materials with different masses by replacing permanent magnet blocks with different magnetic forces.

Compared with the prior art, the utility model discloses following effect has: the utility model discloses an up-and-down motion of piston rod is realized with exhausting to the admitting air of cylinder gas port to utilize installation permanent magnet piece on the piston rod, when telescopic motion about the piston rod, alright control permanent magnet piece apart from the distance between the magnetic material that the separation sleeve bottom was placed, thereby control permanent magnet piece to the size of the magnetic force of magnetic material, the permanent magnet piece of being convenient for produces more stable magnetic force, adsorbs and snatchs the magnetic material.

The invention will be further explained with reference to the following figures and examples:

fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view showing a state in which a permanent magnet block is driven by extending a piston rod to adsorb magnetic materials;

fig. 3 is a schematic view of the piston rod retracting to drive the permanent magnet block to separate from the magnetic material.

The list of components represented by the various reference numbers in the figures is as follows: a-inner chamber, 1-cylinder, 2-isolation sleeve, 3-screw, 4-permanent magnet block, 5-magnetic material, 11-piston rod, 12-cylinder air port.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the above objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and preferred embodiments, it should be understood that the embodiments described in the present invention are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 to 3, the present invention provides a pneumatic magnetic clamp, which includes a cylinder 1 for pushing a piston rod 11 to slide along an inner chamber a of an isolation sleeve 2, the isolation sleeve 2 is installed on an outer wall of a bottom side of the cylinder 1, and a permanent magnet block 4 is detachably installed at a lower end of the piston rod 11 through a locking screw 3; wherein, through piston rod 11 upper and lower piston motion, drive permanent magnet piece 4 and remove at the interior cavity a of isolation sleeve 2, adsorb the magnetic material 5 of placing the bottom of isolation sleeve 2. And, can be different according to the operating mode, adsorb when snatching the magnetic material 5 of different quality, the operator only needs unscrew the permanent magnet piece 4 of the different magnetism of quick replacement with screw 3, produces the magnetic force of different magnetic force sizes in order to snatch the magnetic material 5 of different weight, compares in the magnetic force that the electro-magnet produced more lastingly stable, and life is also longer.

Based on the above technical solution, the utility model also provides an improved technical solution, wherein, the side wall of the cylinder 1 is further provided with a cylinder air port 12, and the up-and-down movement of the piston rod 11 is realized through the air intake and exhaust of the cylinder air port 12; when the piston rod 11 needs to move upwards to drive the permanent magnet block 4 to move upwards along the inner cavity of the isolation sleeve 2, air is continuously fed into the air cylinder 1 through the air cylinder air port 12, and thus the air cylinder 1 pushes the piston rod 11 to move upwards; similarly, when the cylinder 1 is exhausted outwardly through the cylinder port 12, the piston rod 11 will now move downwardly. When the piston rod 11 moves to the lower limit, the permanent magnet block 4 is closest to the magnetic material, the magnetic force is maximum, and the magnetic material is absorbed; when the piston rod 11 moves to the upper limit, the permanent magnet block 4 is farthest away from the magnetic material, and the magnetic force is smaller than the self gravity of the magnetic material, so that the magnetic material is placed.

Meanwhile, it is preferable in an embodiment of the present invention that, in order to ensure that the permanent magnet block 4 absorbs the magnetic material 5 due to various improper operations, the permanent magnet block 4 directly collides with the magnetic material 5 to reduce the service life of the permanent magnet block 4; in contrast, the piston rod 11 pushes the permanent magnet block 4 to move to the lowest point along the inner cavity a of the isolation sleeve 2, and a safety gap is kept between the permanent magnet block and the lower end face of the isolation sleeve 2; when the piston rod 11 moves downwards to the lowest point, the permanent magnet block 4 approaches the lower end face of the isolation sleeve 2, a certain safety gap is kept between the permanent magnet block 4 and the lower end face of the isolation sleeve 2, so that the permanent magnet block 4 can be prevented from being damaged, the magnetic material 5 placed at the bottom of the isolation sleeve 2 can be adsorbed, and the magnetic material 5 is tightly attached to the lower end face of the isolation sleeve 2 under the action of attraction.

The utility model discloses a working process:

when the cylinder 1 continuously exhausts through the cylinder air port 12, the piston rod 11 is pushed to move downwards, when the piston rod 11 moves to the lowest point, the permanent magnet block 4 is close to the lower end face of the isolation sleeve 2 and keeps a small safety gap with the lower end face of the isolation sleeve 2, the magnetic force is maximum, so that the magnetic material 5 can be attracted, and due to the attraction effect, the attracted magnetic material 5 is tightly attached to the lower end face of the isolation sleeve 2, so that the magnetic material 5 is attracted.

When the cylinder 1 continuously admits air through the cylinder gas port 12, and the pulling piston rod 11 goes upward, when the piston rod 11 moves to the highest point, the distance between the permanent magnet block 4 and the magnetic material 5 placed on the lower end surface of the isolation sleeve 2 is increased, the magnetic force of the permanent magnet block 4 to the magnetic material 5 is weakened, and when the magnetic force is smaller than the gravity of the magnetic material 5, the placing operation of the magnetic material 5 is realized.

The utility model provides a pneumatic magnetism anchor clamps, utilize the air inlet and the exhaust of cylinder gas port 12 to realize the up-and-down motion of piston rod 11, and utilize and install permanent magnet piece 4 on piston rod 11, when telescopic motion about piston rod 11, alright control permanent magnet piece 4 apart from the distance between the magnetic material 5 that 2 bottoms of separation sleeve placed, thereby control permanent magnet piece 4 to the size of magnetic force of magnetic material 5, so that permanent magnet piece 4 produces more stable magnetic force, adsorb and snatch magnetic material 5.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. A pneumatic magnetic clamp comprises a cylinder (1) for pushing a piston rod (11) to slide along an inner chamber (a) of an isolation sleeve (2), wherein the isolation sleeve (2) is installed on the outer wall of the bottom side of the cylinder (1), and is characterized in that a permanent magnet block (4) is installed at the lower end part of the piston rod (11) through a screw (3); the permanent magnet block (4) is driven to move in the inner chamber (a) of the isolation sleeve (2) through up-and-down telescopic motion of the piston rod (11), and magnetic materials (5) placed at the bottom of the isolation sleeve (2) are sucked and released.

2. The pneumatic magnetic clamp as claimed in claim 1, wherein a cylinder air port (12) is further formed in a side wall of the cylinder (1), and the up-and-down telescopic movement of the piston rod (11) is realized through air intake and exhaust of the cylinder air port (12).

3. A pneumatic magnetic clamp as claimed in claim 1, characterized in that said piston rod (11) pushes said permanent magnet block (4) to move to the lowest point along the inner chamber (a) of the insulating sleeve (2) and to maintain a safety clearance with the lower end surface of the insulating sleeve (2).

4. A pneumatic magnetic clamp as claimed in claim 3, characterized in that the gripping of magnetic material of different quality is achieved at the lower end of the piston rod (11) by replacing permanent magnet blocks (4) of different magnetic force.