Magnet clamp

Abstract

The utility model discloses a magnet fixture in the field of fixtures, which comprises a base, a groove for accommodating a magnet is arranged on the base, a plurality of notch parts communicated with the outer side of the base are arranged on the inner wall of the groove, a plurality of extension parts aligned with the notch parts are arranged on the outer side of the base, and guide posts and guide sleeves are mounted on the extension parts. The top of the guide column is inserted into the bottom of the guide sleeve, so that the guide sleeve moves up and down in the length direction of the guide column and rotates by taking the guide column as a fixed shaft, the outer side of the guide sleeve is connected with a locking block which extends towards one end of the groove through the corresponding notch part and is used for pressing the magnet, and the guide sleeve is provided with a locking piece which is locked and fixed with the guide column; a center hole communicated with the bottom of the base is formed in the middle of the groove, an annular groove coaxial with the center hole is formed in the bottom of the base, the annular groove is provided with a plurality of hole sites communicated with the groove, iron blocks matched with the hole sites in size are installed in the hole sites, and one end of each iron block is used for being fixed to a magnet in the groove in a magnetic attraction mode. And the magnet fixing and machining stability of the clamp can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, concretely is a magnet clamp. BACKGROUND

[0002] In industrial production and scientific research experiment, magnet as an important functional material is widely used in motor, sensor, loudspeaker, magnetic levitation system and numerous fields. Precise processing of magnet, especially hole processing, is one of the key steps to realize its function design. However, in the processing of magnet, due to its inherent magnetic properties, magnet is prone to move or deflect in the processing, which not only increases the difficulty of processing, but also may lead to the decline of processing precision, affecting the performance and quality of the final product.

[0003] Traditional magnet clamp design mostly adopts simple clamping mechanism, such as directly fixing magnet by bolt or pressing plate. Although this kind of clamp can limit the movement of magnet to a certain extent, due to lack of flexibility and adaptability, it is often difficult to meet the clamping needs of magnet with different thickness, and in the processing, due to uneven or excessive clamping force distribution, magnet may be damaged, affecting its magnetic properties. SUMMARY

[0004] In order to overcome the shortcomings of prior art, the utility model provides a magnet clamp, which can effectively solve the technical problem of poor stability of the clamp used in magnet hole processing.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A magnet clamp, comprising a base, a recess for accommodating a magnet is formed in the base, and a plurality of notched portions are formed in the inner wall of the recess and communicated with the outside of the base, a plurality of extension portions are arranged on the outside of the base and aligned with the notched portions, the extension portions correspond to the notched portions one by one, a guide column and a guide sleeve are installed on the extension portions, the top of the guide column is inserted into the bottom of the guide sleeve, the guide sleeve moves up and down along the length direction of the guide column and rotates around the guide column as the fixed shaft, a locking block is connected to the outside of the guide sleeve and extends to one end of the recess through the corresponding notched portion to press the magnet, and a locking piece is installed on the guide sleeve and fixed with the guide column.

[0007] A central hole is formed in the middle of the recess and communicated with the bottom of the base, an annular groove is formed in the bottom of the base and coaxially arranged with the central hole, a plurality of hole positions are formed in the annular groove and communicated with the recess, a plurality of iron blocks are installed in the hole positions and matched in size, one end of the iron block is used for magnetic attraction with the magnet in the recess, and the other end of the iron block protrudes to one end of the annular groove.

[0008] Further, the groove and the locking block are adhered with anti-skid layers, and the anti-skid layers are arranged at the bottom of the groove and one side of the locking block pressing the magnet.

[0009] Further, the notch portions are equidistantly spaced, and the width of the notch portion is not less than the width of the locking block.

[0010] Further, the top of the guide sleeve is provided with an insertion hole for inserting the locking piece, and the top of the guide column is provided with a screw hole for locking the locking piece.

[0011] Further, the hole positions are distributed on the periphery of the central hole, and the opening of the hole position close to one end of the annular groove is larger than that of the other end.

[0012] Further, the outer side of the base is provided with a plurality of air holes communicated with the grooves.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The clamp provided by the utility model can make the locking block move up and down to lock the magnet, can satisfy the use of magnets with different thicknesses, and can further strengthen the stability of the magnet in the groove by additionally arranging the iron block magnetically attracted to the bottom of the base, avoid the movement during the hole machining, and good stability can help to improve the efficiency of the magnet hole machining. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic diagram of the embodiment of the utility model;

[0016] Figure 2 It is a whole structure schematic diagram of the embodiment of the utility model after the locking piece and the iron block are disassembled;

[0017] Figure 3 It is a base and guide base connection schematic diagram of the embodiment of the utility model;

[0018] Figure 4 It is a base bottom structure schematic diagram of the embodiment of the utility model after the iron block is installed;

[0019] Figure 5 It is a base bottom structure schematic diagram of the embodiment of the utility model;

[0020] Figure 6 It is a guide sleeve connection locking block structure schematic diagram of the embodiment of the utility model;

[0021] Mark in the drawing:

[0022] 1-base, 2-guide column, 3-guide sleeve, 4-locking block, 5-locking piece, 6-iron block, 7-anti-skid layer;

[0023] 101 - groove, 102 - notch portion, 103 - extension, 104 - center hole, 105 - annular groove, 106 - hole site, 107 - air hole;

[0024] 201 - screw hole;

[0025] 301 - jack. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] As Figures 1-6 shown, the utility model provides a magnet clamp, mainly used for clamping and fixing circular magnet, convenient for hole processing in the middle of magnet, prevent magnetic block loose. In use, the clamp can cooperate with the equipment operation of detachable clamping and fixing, convenient clamp to take out and replace magnet and fast fixing. It needs to be further explained that the material of the clamp does not produce magnetism with the magnet.

[0028] The structure of the clamp mainly includes base 1, is set up with a recess 101 for containing magnet on base 1, the shape and size of recess 101 can be customized according to actual needs to adapt to different size and shape of magnet. The inner wall of recess 101 is provided with a plurality of notch portions 102 communicated with the outside of base 1, these notch portions 102 are mainly used to allow locking block 4 to pass through and compress the magnet. The notch portion 102 is equidistantly distributed, which helps to improve the balance after fixing. In addition, when the thickness of the magnet contained in the recess 4 is less than the depth of the recess 4, in order not to affect the compression of the locking block 4, the width of the notch portion 102 is not less than the width of the locking block 4, so as to ensure that the locking block 4 can smoothly pass through the notch portion 102 and compress the magnet.

[0029] The outside of base 1 is provided with a plurality of extensions 103 aligned with the notch portion 102, the extension 103 corresponds to the notch portion 102 one by one, the extension 103 is installed with guide column 2 and guide sleeve 3, the top of guide column 2 is inserted into the bottom of guide sleeve 3, so that guide sleeve 3 moves up and down along the length direction of guide column 2 and rotates around guide column 2 as the fixed shaft, through the above structure, the locking block 4 can adjust the position and angle according to the need, so as to better compress the magnet.

[0030] The outer side of the guide sleeve 3 is connected with a locking block 4 extending to one end of the groove 101 through a corresponding gap part 102 for pressing the magnet, and the locking block 4 is used for pressing the magnet. In order to ensure that the locking block 4 can be firmly fixed at the required position, the guide sleeve 3 is provided with a locking piece 5 locked with the guide column 2, and when the locking piece 5 is locked with the guide column 2, it needs to pass through the guide sleeve 3. However, the locking piece 5 can be locked and fixed with the guide column 2 by threaded connection. In order to facilitate the quick locking of the locking piece 5, the top of the guide sleeve 3 is provided with a insertion hole 301 for inserting the locking piece 5, and the top of the guide column 2 is provided with a screw hole 201 for locking with the locking piece 5.

[0031] A center hole 104 is formed in the middle of the groove 101 and is communicated with the bottom of the base 1, and the center hole 104 is used for magnet hole processing. In order to complete the magnet hole processing operation, the center hole 104 must be larger than the size of the hole processed during magnet processing, otherwise it will affect the movement of the hole processing equipment.

[0032] An annular groove 105 coaxially arranged with the center hole 104 is formed in the bottom of the base 1, and the annular groove 105 is provided with a plurality of hole positions 106 communicated with the groove 101, and a size-matched iron block 6 is arranged in the hole position 106. One end of the iron block 6 is used for magnetic attraction fixing with the magnet in the groove 101, and the other end of the iron block 6 protrudes towards one end of the annular groove 105. Through the magnetic attraction between the iron block 6 and the magnet, the magnet is more stable in the clamp and is not easy to slide or fall off. The hole positions 106 are distributed around the center hole 104, and the opening of the hole position 106 near one end of the annular groove 105 is larger than that of the other end. Through the above structure, the installation and disassembly of the iron block 6 are facilitated.

[0033] In addition, in order to further improve the stability after clamping and protect the surface of the magnet from being damaged, an anti-skid layer 7 is adhered to the groove 101 and the locking block 4. The anti-skid layer 7 is arranged at the bottom of the groove 101 and on the side of the locking block 4 pressing the magnet.

[0034] A plurality of air holes 107 communicated with the groove 101 are formed in the outer side of the base 1, and the air holes 107 can reduce the pressure in the groove 4, which is helpful for disassembling the magnet.

[0035] Compared with the traditional technology, the clamp provided by the technical scheme can make the locking block 4 move up and down to lock the magnet, can meet the use of magnets with different thicknesses, can further strengthen the stability of the magnet in the groove 4 by additionally arranging the iron block 6 magnetically attracted and fixed with the magnet at the bottom of the base 1, can avoid movement during hole processing, has good stability, and is helpful for improving the efficiency of magnet hole processing.

[0036] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, no reference signs in the claims being regarded as limiting the claims concerned.

Claims

1. A magnetic clamp, comprising a base, characterized in that: The base has a groove for accommodating the magnet, and the inner wall of the groove has several notches that communicate with the outside of the base. The outside of the base has several extensions that are aligned with the notches. Each extension corresponds to a notch. A guide post and a guide sleeve are installed on the extension. The top of the guide post is inserted into the bottom of the guide sleeve, so that the guide sleeve moves up and down along the length of the guide post and rotates about the guide post as a fixed axis. A locking block that extends through the corresponding notch to one end of the groove is connected to the outside of the guide sleeve for pressing the magnet. A locking element that is locked and fixed to the guide post is installed on the guide sleeve. The groove has a central hole that communicates with the bottom of the base. The bottom of the base has an annular groove that is coaxial with the central hole. The annular groove has several holes that communicate with the groove. A matching iron block is installed in each hole. One end of the iron block is used to magnetically fix it to a magnet in the groove, and the other end of the iron block protrudes towards one end of the annular groove.

2. A magnet clamp according to claim 1, characterized in that: Both the groove and the locking block are coated with an anti-slip layer, which is located at the bottom of the groove and on the side of the locking block that presses against the magnet.

3. A magnet clamp according to claim 1, characterized in that: The notches are evenly spaced, and the width of the notches is not less than the width of the locking blocks.

4. A magnet clamp according to claim 1, characterized in that: The top of the guide sleeve has an insertion hole for inserting the locking element, and the top of the guide post has a screw hole for locking with the locking element.

5. A magnet clamp according to claim 1, characterized in that: The holes are distributed around the central hole, and the opening of the hole near one end of the annular groove is larger than that at the other end.

6. A magnet clamp according to any one of claims 1-5, characterized in that: The outer side of the base has several air holes that communicate with the groove.

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