Magnetic clamp

Abstract

The utility model discloses a magnetic clamp, and relates to a clamp used in the field of industrial machining. The utility model aims to provide the magnetic clamp which is simple in structure, long in service life and convenient to maintain. The magnetic clamp comprises a first clamping arm and a second clamping arm, the head of the first clamping arm and the head of the second clamping arm are respectively and correspondingly provided with an arc-shaped notch, the middle of the first clamping arm and the middle of the second clamping arm are respectively and correspondingly provided with a first installation groove and a rotating tooth, and a magnet is installed in the first installation groove. The opposite magnetic poles of the magnets in the first mounting grooves in the two sides are opposite, the rotating teeth are located below the first mounting grooves, second mounting grooves are formed in the tail of the first clamping arm and the tail of the second clamping arm respectively, magnets are mounted in the second mounting grooves, and the opposite magnetic poles of the magnets in the second mounting grooves in the two sides are opposite.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a magnetic clamp. Background Art

[0002] A fixture is a device used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for construction or testing. It is commonly found in the field of industrial processing and has a variety of structures and styles.

[0003] The fixture is usually composed of positioning elements, clamping devices, indexing devices, connecting elements and clamp bodies, and has a relatively complex structure. The fixture generally has two actions when working: clamping and releasing, which involves the resetting of the fixture. Existing fixtures usually use metal and spring structures to solve the resetting problem, which requires more regular replacement of springs and other accessories, resulting in a shorter service life of the fixture. In addition, metal structure fixtures also need to be regularly lubricated or rust-proofed, which makes the fixture itself difficult to clean and has high maintenance costs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a magnetic clamp which has a simple structure, a long service life and is easy to maintain.

[0005] The utility model magnetic gripper comprises a first clamping arm and a second clamping arm, the heads of the first clamping arm and the second clamping arm are respectively processed with arc-shaped notches, the middle parts of the first clamping arm and the second clamping arm are respectively provided with first mounting grooves and rotating teeth, a magnet is installed in the first mounting groove, the opposite magnetic poles of the magnets in the first mounting grooves on both sides are opposite, the rotating teeth are located below the first mounting groove, the tails of the first clamping arm and the second clamping arm are respectively provided with second mounting grooves, a magnet is installed in the second mounting groove, the opposite magnetic poles of the magnets in the second mounting grooves on both sides are opposite.

[0006] The utility model discloses a magnetic clamp, wherein the tails of the first clamping arm and the second clamping arm are bent toward the same side, and the bending angle of the first clamping arm is greater than that of the second clamping arm.

[0007] The utility model provides a magnetic gripper, wherein the first mounting groove is located on a side close to the middle of the first clamping arm and the second clamping arm.

[0008] The utility model provides a magnetic gripper, wherein a first mounting hole is arranged below the first mounting slot, and the first mounting hole and the first mounting slot are located at the same height.

[0009] The utility model provides a magnetic gripper, wherein the second mounting groove is located at a side where the tails of the first clamping arm and the second clamping arm are close to each other.

[0010] The utility model discloses a magnetic gripper, wherein the tail of the second clamping arm is processed with a second mounting hole, and the second mounting hole is located below the second mounting groove.

[0011] The utility model discloses a magnetic clamp, wherein the first clamping arm and the second clamping arm are made of plastic.

[0012] The difference between the magnetic gripper of the utility model and the prior art is that the magnetic gripper of the utility model adopts a combination of plastic and magnets, and magnets are installed at different positions in the first clamping arm and the second clamping arm, and the arc-shaped notch is opened and reset by magnetic force, without the need for additional elastic elements. The magnetic gripper of the utility model has the characteristics of wear resistance and self-lubrication, does not require additional lubrication and replacement of accessories, is simple to maintain in the later stage, and has a long service life.

[0013] The magnetic gripper of the present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the magnetic gripper of the utility model;

[0015] Figure 2 This is a front view of the magnetic gripper of the utility model;

[0016] The markings in the figure are as follows: 1-first clamping arm; 2-arc-shaped notch; 3-first mounting groove; 4-second clamping arm; 5-first mounting hole; 6-second mounting groove; 7-second mounting hole. DETAILED DESCRIPTION

[0017] The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0018] Example

[0019] like Figure 1 and Figure 2 As shown, the magnetic gripper of the utility model comprises a first clamping arm 1 and a second clamping arm 4, and the first clamping arm 1 and the second clamping arm 4 are made of plastic. The first clamping arm 1 and the second clamping arm 4 are connected by magnetic force.

[0020] The heads of the first clamping arm 1 and the second clamping arm 4 are respectively processed with arc-shaped notches 2, and the notches on both sides form an opening for clamping a workpiece.

[0021] The first clamping arm 1 and the second clamping arm 4 are respectively provided with a first mounting groove 3, a first mounting hole 5 and a rotating tooth in the middle thereof. The first mounting grooves 3 on both sides are located on the side close to the middle of the first clamping arm 1 and the second clamping arm 4, and magnets are installed in the first mounting grooves 3, and the opposite magnetic poles of the magnets on both sides are opposite. When the first clamping arm 1 and the second clamping arm 4 are in a state of clamping a workpiece, the arc-shaped notch 2 is closed, the head and the middle of the first clamping arm 1 are in contact, and the magnets in the first mounting grooves 3 on both sides are attracted to each other.

[0022] The first mounting hole 5 is located below the first mounting groove 3 and on a side away from the middle of the first clamping arm 1 and the second clamping arm 4 . The first mounting hole 5 is used for mounting an external connecting member.

[0023] The rotating teeth are located below the first mounting groove 3 and at the same height as the first mounting hole 5. The rotating teeth on the first clamping arm 1 and the second clamping arm 4 are meshed with each other. When the first mounting holes 5 on both sides are connected to the outside, the first clamping arm 1 and the second clamping arm 4 can rotate relative to each other around the meshing position of the rotating teeth under the action of external force.

[0024] The tails of the first clamping arm 1 and the second clamping arm 4 are bent to the same side, and the bending angle of the first clamping arm 1 is greater than that of the second clamping arm 4, so that a space is reserved at the tails of the first clamping arm 1 and the second clamping arm 4 to facilitate the relative rotation of the first clamping arm 1 and the second clamping arm 4.

[0025] The tail of the first clamping arm 1 and the second clamping arm 4 are respectively provided with a second mounting groove 6, and the second mounting groove 6 is located on the side close to the tail of the first clamping arm 1 and the second clamping arm 4. A magnet is installed in the second mounting groove 6, and the opposite magnetic poles of the magnets on both sides are opposite. When the first clamping arm 1 and the second clamping arm 4 are in a state of not clamping a workpiece, the arc-shaped notch 2 is opened, and the first clamping arm 1 and the second clamping arm 4 rotate relative to each other. At this time, the magnets in the two first mounting grooves 3 move away from each other, and the magnets in the two second mounting grooves 6 attract each other, so that the tails of the first clamping arm 1 and the second clamping arm 4 are in contact.

[0026] The tail of the second clamping arm 4 is processed with a second mounting hole 7, which is located below the second mounting slot 6 and is used to mount an external connector. The first mounting hole 5 is a plain hole, and the second mounting hole 7 is a threaded hole.

[0027] When the magnetic gripper of the utility model needs to clamp a workpiece, the first clamping arm 1 is rotated, the heads and middle parts of the first clamping arm 1 and the second clamping arm 4 are separated, the arc-shaped notch 2 is opened, the tails of the first clamping arm 1 and the second clamping arm 4 are in contact, the magnets in the second mounting groove 6 are attracted, and the workpiece can be placed in the arc-shaped notch 2. When the arc-shaped notch 2 needs to be closed, the heads and middle parts of the first clamping arm 1 and the second clamping arm 4 are close, the magnets in the first mounting groove 3 are attracted, and the tails of the first clamping arm 1 and the second clamping arm 4 are separated.

[0028] The utility model magnetic gripper adopts a combination of plastic and magnets, and uses magnetic force to open and reset the arc-shaped notch by installing magnets at different positions in the first clamping arm and the second clamping arm, without the need for additional elastic elements. The utility model magnetic gripper has the characteristics of wear resistance and self-lubrication, does not require additional lubrication and replacement of accessories, is simple to maintain in the later stage, and has a long service life.

[0029] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A magnetic gripper, characterized in that: It includes a first clamping arm and a second clamping arm, the heads of the first clamping arm and the second clamping arm are respectively processed with arc-shaped notches, the middle parts of the first clamping arm and the second clamping arm are respectively provided with first mounting grooves and rotating teeth, a magnet is installed in the first mounting groove, the opposite magnetic poles of the magnets in the first mounting grooves on both sides are opposite, the rotating teeth are located below the first mounting groove, the tails of the first clamping arm and the second clamping arm are respectively provided with second mounting grooves, a magnet is installed in the second mounting groove, the opposite magnetic poles of the magnets in the second mounting grooves on both sides are opposite.

2. The magnetic gripper according to claim 1, characterized in that: The tails of the first clamping arm and the second clamping arm are bent toward the same side, and the bending angle of the first clamping arm is greater than that of the second clamping arm.

3. The magnetic gripper according to claim 1, characterized in that: The first mounting groove is located on one side close to the middle of the first clamping arm and the second clamping arm.

4. The magnetic gripper according to claim 1, characterized in that: A first mounting hole is provided below the first mounting slot, and the first mounting hole and the first mounting slot are located at the same height.

5. The magnetic gripper according to claim 1, characterized in that: The second mounting groove is located on a side where the tails of the first clamping arm and the second clamping arm are close to each other.

6. The magnetic gripper according to claim 1, characterized in that: A second mounting hole is processed at the tail of the second clamping arm, and the second mounting hole is located below the second mounting groove.

7. The magnetic gripper according to claim 1, characterized in that: The first clamping arm and the second clamping arm are made of plastic.

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