CN211595953U

CN211595953U - Needle selector

Info

Publication number: CN211595953U
Application number: CN202020126321.7U
Authority: CN
Inventors: 周陈锋
Original assignee: Zhuji Kexun Electronic Technology Co ltd
Current assignee: Zhuji Kexun Electronic Technology Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-29
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a select needle equipment technical field, especially relate to a select needle ware. The needle selector comprises a shell, a magnetism isolating structure and a plurality of groups of electromagnetic coils; the magnetism isolating structure and the electromagnetic coils are fixedly connected with the shell, the magnetism isolating structure is provided with grooves used for containing the electromagnetic coils, and the grooves correspond to the electromagnetic coils one to one. The utility model provides a select the needle ware, can alleviate the problem of the magnetic field intercoupling that different solenoid produced to, not only be convenient for improve magnetic field intensity, still be convenient for keep the original magnetic field direction of solenoid, and then, make the tool bit accuracy higher.

Description

Needle selector

Technical Field

The utility model relates to a select needle equipment technical field, especially relate to a select needle ware.

Background

The needle selector is generally provided with a plurality of groups of electromagnetic coils, the electromagnetic coils can generate a magnetic field surrounding the needle selector when in work, and the magnetic fields generated by the different groups of electromagnetic coils are easy to generate magnetic field coupling, so that the magnetic field intensity of the electromagnetic coils is weakened, the original magnetic field direction of the electromagnetic coils is changed, a magnetic declination is formed, and the accuracy of a tool bit of the needle selector is low.

In summary, how to overcome the above-mentioned defects of the conventional needle selector is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a select needle ware to alleviate the lower technical problem of tool bit accuracy that selects needle ware among the prior art to exist.

The utility model provides a needle selector, which comprises a shell, a magnetic isolation structure and a plurality of groups of electromagnetic coils.

The magnetic isolation structure and the electromagnetic coils are fixedly connected with the shell, the magnetic isolation structure is provided with a plurality of grooves used for containing the electromagnetic coils, and the grooves are in one-to-one correspondence with the electromagnetic coils.

Preferably, as an implementation mode, the number of the magnetic shielding structures is two, and the two magnetic shielding structures correspond to the two rows of the electromagnetic coils respectively.

Preferably, as an implementation mode, the magnetic isolation structure is detachably connected with the shell.

Preferably, as an implementation mode, both ends of the magnetic isolation structure along the arrangement direction of the electromagnetic coils are connected with the housing;

and/or the magnetic isolation structure is fixed on the shell through a threaded connector.

Preferably, as an implementation manner, the magnetism isolating structure is a magnetism isolating sheet, and the magnetism isolating sheet is bent to and fro along the arrangement direction of the electromagnetic coils to form the groove.

Preferably, as an implementation mode, the magnetic isolation structure is a block structure, and the groove is formed in the block structure.

Preferably, as an implementation mode, the cross section of each groove is provided with a main body semicircular part and a transition part, the transition parts of two adjacent grooves are connected, the two adjacent transition parts enclose a semicircular structure, and the main body semicircular part is tangent to the transition parts.

Preferably, as an embodiment, a gap is formed between the magnetic shielding structure and the electromagnetic coil, and the gap is filled with a heat conductor.

Preferably, as an implementation mode, the heat conductor is heat-conducting silica gel.

Preferably, as an embodiment, the magnetic isolation structure is a powder metallurgy injection molding piece or a multi-channel stamping piece.

Compared with the prior art, the utility model has the advantages of:

the utility model provides a select needle ware, including casing, magnetism isolating structure and multiunit solenoid, wherein, magnetism isolating structure and casing fixed connection, magnetism isolating structure have a plurality of recesses that are used for holding solenoid, a plurality of recesses respectively with multiunit solenoid one-to-one.

During assembly, the magnetism isolating structure can be fixed on the shell, then the electromagnetic coils are placed in the grooves corresponding to the electromagnetic coils respectively, and finally the electromagnetic coils are fixed on the shell, so that the assembly process is very simple.

In the needle selector which is completely assembled, the groove wall of the groove on the magnetism isolating structure can isolate the electromagnetic coil in the groove from other electromagnetic coils; after the electromagnetic coil is electrified, the magnetic field generated by the electromagnetic coil can form a gathered magnetic field due to the existence of the magnetism isolating structure, and the problem of mutual coupling of the magnetic fields generated by different electromagnetic coils can be well relieved, so that the magnetic field intensity is conveniently improved, the original magnetic field direction of the electromagnetic coil is conveniently kept, and the accuracy of the tool bit can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the needle selector according to the embodiment of the present invention after assembling the housing and the magnetic shielding structure;

fig. 2 is a front view of the needle selector according to the embodiment of the present invention after the casing and the magnetic shielding structure are assembled;

FIG. 3 is a sectional view taken along line A-A in FIG. 2;

fig. 4 is a front view of a magnetism isolating structure in the needle selector according to the embodiment of the present invention.

Icon:

100-a housing; 200-a magnetic isolation structure; 300-threaded connections;

210-a groove; 220-plane flanging;

211-body semi-circular portion; 212-transition.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a perspective view of an assembly structure of a housing 100 and a magnetism isolating structure 200 in a needle selector according to an embodiment of the present invention, which can reflect a relative positional relationship and a connection relationship between the housing 100 and the magnetism isolating structure 200 in a three-dimensional manner.

Fig. 2 is a front view of an assembly structure of the casing 100 and the magnetism isolating structure 200 in the needle selector according to the embodiment of the present invention, which can reflect the relative positional relationship and the connection relationship between the casing 100 and the magnetism isolating structure 200 from a front view.

Fig. 3 is a sectional view of an assembly structure of the casing 100 and the magnetism isolating structure 200 in the needle selector according to the embodiment of the present invention, which can reflect the relative positional relationship and the connection relationship between the casing 100 and the magnetism isolating structure 200 and between the two magnetism isolating structures from the inside.

Fig. 4 is a front view of the magnetism isolating structure 200 in the needle selector according to the embodiment of the present invention, which can reflect the structural characteristics of the magnetism isolating structure 200 as a whole, especially the characteristics of the groove 210.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Referring to fig. 1 to 4, the needle selector provided in this embodiment includes a housing 100, a magnetism isolating structure 200, and a plurality of sets of electromagnetic coils, where the magnetism isolating structure 200 is fixedly connected to the housing 100, the magnetism isolating structure 200 has a plurality of grooves 210 for accommodating the electromagnetic coils, and the plurality of grooves 210 correspond to the electromagnetic coils one to one.

During assembly, the magnetic isolation structure 200 can be fixed on the shell 100, then the electromagnetic coils are respectively placed in the corresponding grooves 210, and finally the electromagnetic coils are fixed on the shell 100, so that the assembly process is very simple.

In the assembled needle selector, the groove wall of the groove 210 on the magnetism isolating structure 200 can isolate the electromagnetic coil in the groove from other electromagnetic coils; after the electromagnetic coil is electrified, the magnetic isolation structure 200 can enable the magnetic field generated by the electromagnetic coil to form a gathered magnetic field, and can well relieve the problem that the magnetic fields generated by different electromagnetic coils are mutually coupled, so that the magnetic field intensity is improved, the original magnetic field direction of the electromagnetic coil is kept, and the accuracy of the tool bit can be improved.

Specifically, referring to fig. 1 and 3, the two magnetism isolating structures 200 may be provided, and the two magnetism isolating structures 200 correspond to the two rows of electromagnetic coils, so that the two magnetism isolating structures 200 may be mounted on the casing 100 from two sides of the casing 100, and the mounting convenience is further improved.

It should be noted that the magnetic isolation structures 200 are not necessarily provided as two, and may also be provided as one, as long as two rows of grooves 210 are formed on the magnetic isolation structure 200, and the magnetic isolation structure 200 is provided as two in this embodiment, which is for convenience of installation and is not limited.

Further, the magnetic isolation structure 200 can be detachably connected to the housing 100.

It should be noted that, when the magnetic shielding structure 200 is damaged and needs to be replaced, the magnetic shielding structure 200 can be detached from the housing 100, and a new magnetic shielding structure 200 is replaced, and after the replacement, the needle selector can be restored to normal use, which is convenient for improving the practicability of the needle selector.

Preferably, both ends of the magnetism isolating structure 200 along the arrangement direction of the electromagnetic coil are connected to the housing 100, so that the connection position can be reduced on the basis of ensuring the connection stability, the connection time and the labor force can be further saved, and the disassembly time and the labor force can be saved when the magnetism isolating structure 200 needs to be disassembled.

Preferably, referring to fig. 1 to 3, the magnetic shielding structure 200 may be fixed to the housing 100 by a screw connector 300, so that the detachable connection is achieved and the connection firmness is improved.

Specifically, both ends of the magnetic shield structure 200 in the arrangement direction of the electromagnetic coils are connected to the case 100 by means of the screw connectors 300.

As an implementation manner, referring to fig. 1 to 4, the magnetism isolating structure 200 may be configured as a magnetism isolating sheet, and on this basis, the magnetism isolating sheet may be bent to and fro along the arrangement direction of the electromagnetic coil to form the groove 210, so that not only the material of the magnetism isolating structure 200 can be saved, but also the cost can be reduced; the weight of the magnetic isolation structure 200 can be reduced, and the stress at the joint of the magnetic isolation structure 200 and the shell 100 can be reduced conveniently, so that the probability of fracture of the joint of the magnetic isolation structure 200 and the shell 100 due to too large stress can be reduced, and the connection stability between the magnetic isolation structure 200 and the shell 100 can be improved conveniently.

As another possible implementation, the magnetic shielding structure 200 may be a block structure, and the groove 210 is formed on the block structure.

Preferably, referring to fig. 4, both ends of the magnetic shielding structure 200 may be provided as a planar flange structure.

It should be noted that the planar flange 220 of the magnetic isolation structure 200 can be pressed against the housing 100 and the corresponding planar portion thereof, so as to increase the contact area between the magnetic isolation structure 200 and the housing 100, and further, improve the connection stability between the two ends of the magnetic isolation structure 200 and the housing 100.

Specifically, referring to fig. 3, through holes may be formed at the positions of the planar flanges 220 at the two ends of the magnetic isolation structure 200, and threaded holes may be formed at positions on the casing 100 corresponding to the through holes on the magnetic isolation structure 200, so that the threaded connector 300 with external threads may be screwed into the threaded holes on the casing 100 after passing through the through holes on the magnetic isolation structure 200, and the connection is simple and convenient, and the firmness is high.

A bolt may be used as the threaded connector 300.

Specifically, referring to fig. 4, the cross section of each groove 210 has a main body semicircular part 211 and a transition part 212, wherein the transition parts 212 of two adjacent grooves 210 are connected with each other, and two adjacent transition parts 212 can enclose a semicircular structure, and the main body semicircular part 211 is tangent to the transition parts 212.

Because the solenoid is cylindrical, the body semicircular part 211 of the groove 210 is matched with the shape of the solenoid, and the semicircular transition part 212 is tangent to the body semicircular part 211, so that the groove 210 cannot interfere with the solenoid, and the solenoid can enter the groove 210 from the opening of the groove 210.

Further, a gap may be formed between the magnetic shield structure 200 and the electromagnetic coil, and a heat conductor may be filled in the gap.

It should be noted that, the gap between the magnetic isolation structure 200 and the electromagnetic coil is filled with a heat conductor, on one hand, the heat conductor can be used to enhance the stability of the electromagnetic coil; on the other hand, the heat conductor can rapidly dissipate heat generated after the electromagnetic coil is electrified, the problem that the electromagnetic coil is damaged due to too concentrated heat is relieved, and the service life of the electromagnetic coil can be prolonged.

In particular, a thermally conductive silicone gel may be used as the above-mentioned heat conductor.

It should be noted that the heat-conducting silica gel has good heat conductivity and insulation property, and is suitable for being filled between the magnetic isolation structure 200 and the electromagnetic coil; in addition, the surface of the heat-conducting silica gel is sticky, and can be fixed on the magnetic isolation structure 200 and the electromagnetic coil without other connecting structures, so that the magnetic isolation structure is very convenient.

Specifically, the magnetic isolation structure 200 can be integrally formed by adopting a powder metallurgy injection molding process or a multi-channel stamping process, so that the magnetic isolation structure is convenient to process, and the structural strength of the magnetic isolation structure 200 can be improved.

To sum up, the embodiment of the utility model discloses select the needle ware, should select the needle ware can overcome traditional a great deal of technical defect who selects the needle ware. The embodiment of the utility model provides a select the needle ware, can alleviate the problem of the magnetic field intercoupling that different solenoid produced to, not only be convenient for improve magnetic field intensity, still be convenient for keep the original magnetic field direction of solenoid, and then, make the tool bit accuracy higher.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Claims

1. The needle selector is characterized by comprising a shell (100), a magnetism isolating structure (200) and a plurality of groups of electromagnetic coils;

the magnetic isolation structure (200) and the electromagnetic coils are fixedly connected with the shell (100), the magnetic isolation structure (200) is provided with a plurality of grooves (210) used for accommodating the electromagnetic coils, and the grooves (210) are respectively in one-to-one correspondence with the electromagnetic coils.

2. The selector as claimed in claim 1, wherein there are two magnetic shielding structures (200), and two magnetic shielding structures (200) correspond to two rows of the electromagnetic coils, respectively.

3. Selector according to claim 2, characterized in that the magnetic shielding structure (200) is detachably connected to the housing (100).

4. The selector as claimed in claim 3, wherein both ends of the magnetism isolating structure (200) in the arrangement direction of the electromagnetic coils are connected to the housing (100);

and/or the magnetic isolation structure (200) is fixed on the shell (100) through a threaded connector (300).

5. The selector according to any one of claims 2 to 4, wherein the magnetism isolating structure (200) is a magnetism isolating sheet which is bent back and forth in the direction of arrangement of the electromagnetic coils to form the groove (210).

6. Selector according to one of claims 1 to 4, characterized in that the magnetic shielding structure (200) is a block-like structure, on which the groove (210) opens.

7. The selector as claimed in claim 2, wherein the cross section of the groove (210) has a main body semicircle part (211) and a transition part (212), the transition parts (212) of two adjacent grooves (210) are connected, and the two adjacent transition parts (212) enclose a semicircle structure, and the main body semicircle part (211) is tangent to the transition part (212).

8. Selector according to any one of claims 1 to 4, characterized in that a gap is present between the magnetic shielding structure (200) and the electromagnetic coil, said gap being filled with a heat conductor.

9. The selector of claim 8 wherein the heat conductor is thermally conductive silicone.

10. Selector according to any one of claims 1 to 4, characterized in that the magnetic shielding structure (200) is a powder metallurgy injection molding or a multi-channel stamping.