CN216542968U - Assembling jig - Google Patents

Abstract

The utility model provides an assembly jig which comprises a first assembly mechanism and a second assembly mechanism, wherein the first assembly mechanism comprises a first installation part and a limiting part, the first installation part is provided with a positioning part which can be detachably connected with a to-be-assembled part to position the to-be-assembled part, the limiting part is provided with a through hole and a plurality of limiting holes, the through hole can be penetrated by the to-be-assembled part or the positioning part, and each limiting hole can contain a first magnet and limit the first magnet; the second assembly devices comprise second assembly parts, the second assembly parts are provided with positioning grooves for accommodating the assembly parts, and the positioning grooves can enclose positioning spaces for accommodating the second magnets together with every two adjacent first magnets for accommodating the assembly parts and the accommodating parts in the positioning grooves. This assembly jig independently assembles first magnet and second magnet respectively through first assembly devices and second assembly devices, can realize the quick convenient equipment of halbach array magnet.

Description

Assembling jig

Technical Field

The utility model belongs to the technical field of magnet assembly, and particularly relates to an assembly jig for a magnet.

Background

The intravascular blood pump can be inserted into a blood vessel of a patient percutaneously and then is inserted into the heart of the patient along the blood vessel to serve as a left ventricular assist device or a right ventricular assist device. Accordingly, intravascular blood pumps are also known as intracardiac blood pumps.

The motor of the intravascular blood pump comprises a rotating shaft, a magnet and a stator, wherein the magnet is arranged on a flywheel of the rotating shaft in a Halbach array mode, and the stator can generate a rotating magnetic field which interacts with the magnet so as to enable the rotating shaft to rotate around the axis of the rotating shaft. Because one surface of adjacent magnets in the Halbach array magnet is mutually attracted and the other surface of the adjacent magnets is mutually repelled, the problem of inconvenient installation exists when the magnets are installed on a flywheel of a rotating shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an assembly jig, and aims to solve the technical problem that a Halbach array magnet in the prior art is inconvenient to assemble.

The utility model is realized in this way, an assembly jig is used for assembling halbach array magnets on a to-be-assembled piece, the halbach array magnets comprise a first magnet and a second magnet, the magnetizing direction of the second magnet is vertical or inclined relative to the magnetizing direction of the first magnet, and the assembly jig comprises:

the first assembling mechanism comprises a first assembling part and a limiting part, wherein the first assembling part is provided with a positioning part which can be detachably connected with the to-be-assembled part and can position the to-be-assembled part, the limiting part is provided with a through hole and a plurality of spaced limiting holes, the through hole can be used for the to-be-assembled part or the positioning part to penetrate through, and each limiting hole can contain at least one part of one first magnet and limit the first magnet;

the second assembling mechanism comprises a second assembling part, the second assembling part is provided with a positioning groove which can accommodate and install the first magnet and is used for treating the assembling part, and the groove wall of the positioning groove can be surrounded by the first magnet and the assembling part and two adjacent first magnets to form a positioning space which can accommodate at least part of the second magnet.

In one embodiment, a plurality of the limiting holes are arranged around the central axis of the through hole, and the limiting holes are in a circle; the first mounting piece is provided with a containing groove, the containing groove can contain a plurality of first magnets, and when the positioning part is connected with the to-be-assembled piece, the plurality of limiting holes are opposite to the containing groove, so that each first magnet can be partially positioned in the limiting holes, and partially contained in the containing groove.

In one embodiment, the accommodating groove has a plurality of spaced limiting portions, each of the limiting portions can correspond to one of the limiting holes, and each of the limiting portions can accommodate a part of one of the first magnets and can limit the position of the first magnet.

In one embodiment, the positioning portion can be at least partially accommodated in the butt joint component of the component to be assembled, the positioning portion is arranged in the accommodating groove and is located at the center of the accommodating groove, and the plurality of limiting portions are arranged around the positioning portion; the accommodating groove is also provided with an accommodating gap which is positioned between the positioning part and the limiting part and can accommodate the butt joint part of the part to be assembled, and the accommodating gap is communicated with the limiting parts; the limiting holes are communicated with the through holes.

In one embodiment, the sum of the depth of the accommodating groove and the depth of the limiting hole is smaller than the height of the first magnet, so that the first magnet can protrude out of one side of the limiting part, which is far away from the first mounting part, when being accommodated in the limiting hole and the accommodating groove;

and/or when the positioning part is connected with the part to be assembled, the part to be assembled can be limited to rotate relative to the positioning part.

In one embodiment, the first assembling mechanism further comprises a clamping piece, and the clamping piece can clamp the first magnet and the to-be-assembled piece together with the first assembling piece.

In one embodiment, the limiting member further has a limiting groove, the clamping member has a first limiting boss, and the first limiting boss can be partially received in the limiting groove to limit the limiting member from moving relative to the first mounting member in a direction perpendicular to the axis of the through hole.

In one embodiment, the clamping piece is provided with a clamping surface, the clamping surface can clamp the first magnet and the to-be-assembled piece together with the first installation piece, a first limiting boss is arranged on the clamping surface in a protruding mode, and one side, far away from the clamping surface, of the first limiting boss can abut against the first installation piece so as to prevent the clamping surface and the first installation piece from pressing the to-be-assembled piece and the first magnet.

In one embodiment, the groove bottom of the positioning groove is provided with a through hole penetrating through the second mounting piece.

In one embodiment, the second assembling mechanism further includes a pushing part, the pushing part can push the second magnet into the positioning space, the pushing part has a pushing surface, a second limiting boss is arranged on the pushing surface in a protruding manner, and the second limiting boss can abut against the second mounting part to prevent the pushing surface and the second mounting part from extruding the second magnet and the first magnet.

Compared with the prior art, the utility model has the technical effects that: this assembly is controlled the location portion of first installed part through first assembly devices can realize treating being connected and the location of assembly parts and first installed part, through the perforating hole and a plurality of spaced, be used for realizing spacing to first magnet to the spacing hole of first magnet that set up on the locating part to in order to assemble first magnet to treating the assembly parts through using first assembly devices, with the formation half-assembly spare. Then the locating slot on the second installed part is used for locating the half-assembled part, and a locating space for placing a second magnet is formed by the slot wall of the locating slot and the half-assembled part together, so that the second magnet is installed on the half-assembled part, and an assembled finished product is formed. This assembly jig independently assembles first magnet and second magnet respectively through first assembly devices and second assembly devices, can realize the quick convenient equipment of halbach array magnet, improves assembly efficiency.

Drawings

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

FIG. 1 is a schematic view of a flywheel;

FIG. 2 is a schematic view of the flywheel of FIG. 1 assembled with Halbach array magnets;

fig. 3 is a schematic structural diagram of an assembly fixture according to an embodiment of the present invention;

FIG. 4 is a partial schematic structural view of the first assembly mechanism shown in FIG. 3;

FIG. 5 is a partial exploded view of the first assembly mechanism shown in FIG. 4 during assembly of the first magnet;

FIG. 6 is a schematic diagram of the structure of a half assembly of an embodiment;

FIG. 7 is a cross-sectional view of the first assembly mechanism shown in FIG. 3;

FIG. 8 is a schematic view of the structure of the clamp shown in FIG. 3;

fig. 9 is a schematic structural view of the second assembling mechanism shown in fig. 3 when the second magnet is assembled;

FIG. 10 is a cross-sectional view of the second assembly mechanism shown in FIG. 3;

fig. 11 is a schematic structural view of the pushing member shown in fig. 3.

Description of reference numerals:

100. assembling a jig; 10. a first assembly mechanism; 11. a first mounting member; 111. a positioning part; 112. a limiting part; 113. a clearance is accommodated; 1101. a first mounting surface; 1102. a second positioning structure; 1103. a second positioning hole; 12. a limiting member; 121. a limiting hole; 122. a through hole; 123. a limiting groove; 13. a clamping member; 1301. a clamping surface; 1302. a first positioning hole; 131. a first limit boss; 132. a first positioning structure; 20. a second assembly mechanism; 21. a second mount; 211. positioning a groove; 212. inserting holes; 213. a fourth positioning structure; 2101. a second mounting surface; 2102. a fourth positioning hole; 22. a pushing member; 221. a second limit boss; 222. a third positioning structure; 2201. pushing the dough; 2202. a third positioning hole; 80. halbach array magnets; 81. a first magnet; 82. a second magnet; 801. an installation space; 90. a flywheel; 91. a connecting member; 92. a turntable; 911. perforating; 901. glue overflow holes; 921. a connecting surface; 200. a half-assembly; 300. and assembling a finished product.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 2, the present invention provides an assembly jig 100, wherein the assembly jig 100 can be used to mount halbach array magnets on an assembly to be assembled, in one embodiment, the assembly to be assembled is a flywheel, such as a flywheel of a motor rotor of a blood pump.

As shown in fig. 1, the flywheel 90 according to an embodiment includes a connecting member 91 and a rotating disc 92, the rotating disc 92 has a disc shape and has a connecting surface 921, the connecting member 91 has a tubular shape and is connected to the connecting surface 921, the connecting member 91 is located at the center of the rotating disc 92, and the connecting member 91 is a butt-joint component of the flywheel 90 fixedly connected to a rotating shaft of the motor.

Referring to fig. 2, the halbach array magnet 80 is mounted on the turntable 92 to form the assembled product 300, and specifically, the halbach array magnet 80 is mounted on the connection surface 921 of the turntable 92.

The halbach array magnet 80 includes a plurality of first magnets 81 and a plurality of second magnets 82, and the first magnets 81 and the second magnets 82 are alternately arranged and arranged around the connecting member 91 to form a ring structure as shown in the drawing. The first magnet 81 has a first magnetization direction (for example, the magnetization direction is the axial direction of the halbach array magnet 80), and the second magnet 82 has a second magnetization direction (for example, the magnetization direction is the circumferential direction of the halbach array magnet 80 or a direction inclined with respect to the axial direction), which is perpendicular to the first magnetization direction. In the halbach array magnet 80, the N-pole and S-pole of two adjacent first magnets 81 are opposite in the axial direction of the halbach array magnet 80, and the N-pole and S-pole of two adjacent second magnets 82 are opposite in the circumferential direction of the halbach array magnet 80. Therefore, in the process of assembling the halbach array magnet 80, if the second magnet 82 is assembled between two adjacent first magnets 81, the second magnet 82 is attracted to one surface of the first magnet 81 and repelled to the other surface of the first magnet 81, so that the second magnet 82 cannot be completely embedded between the two first magnets 81.

Referring to fig. 3, the assembly fixture 100 of the present embodiment includes a first assembly mechanism 10 and a second assembly mechanism 20. Wherein the first fitting mechanism 10 is used to fit the first magnet 81 to the flywheel 90, and the second fitting mechanism 20 is used to fit the second magnet 82 to the flywheel 90 to which the first magnet 81 has been fitted.

Referring to fig. 4 and 5, the first assembly mechanism 10 includes a first mounting member 11 and a limiting member 12.

The first attachment member 11 is provided with a positioning portion 111, and the positioning portion 111 is detachably connected to the flywheel 90 and positions the flywheel 90. The positioning portion 111 is specifically configured to interface with the connecting member 91 of the flywheel 90 to achieve positioning of the flywheel 90. When the positioning portion 111 is connected to the connection member 91 of the flywheel 90, the connection surface 921 of the rotating disk 92 of the flywheel 90 faces the positioning portion 111.

Specifically, the positioning portion 111 is substantially cylindrical, and the connecting member 91 can be slidably sleeved on the positioning portion 111 along the extending direction of the positioning portion 111. The connecting piece 91 of the flywheel 90 is provided with a through hole 911 adapted to the positioning portion 111 along a direction perpendicular to the connecting surface 921 of the rotating disc 92, the connecting piece 91 can be sleeved on the positioning portion 111 through the through hole 911, and at this time, the positioning portion 111 is wholly or partially accommodated in the through hole 911. The positioning portion 111 can restrict the wobbling of the flywheel 90 by interfering with the hole wall of the through hole 911.

In one embodiment, when the positioning portion 111 is connected to the connecting member 91 of the flywheel 90, the positioning portion 111 can limit the rotation of the flywheel 90 relative to the positioning portion 111. Specifically, one of the positioning portion 111 and the connecting member 91 is sleeved on the other, at least one of the positioning portion 111 and the connecting member 91 is provided with a limiting plane portion, for example, at least one of the inner surface of the connecting member 91 and the side wall of the positioning portion 111 is provided with a tangent plane, and the rotation of the flywheel 90 relative to the positioning portion 111 is limited by the tangent plane.

The stopper 12 has a through hole 122, and the connecting member 91 or the positioning portion 111 of the flywheel 90 can be inserted through the through hole 122 in the through hole 122, so that one of the connecting member 91 and the positioning portion 111 can be inserted through the through hole 122 and connected to the other. Specifically, in the illustrated embodiment, the connecting member 91 is inserted into the through hole 122 and connected to the positioning portion 111, and the limiting member 12 is located between the rotating disc 92 and the first mounting member 11.

The limiting member 12 is further provided with a plurality of spaced limiting holes 121, and each limiting hole 121 can accommodate at least a portion of one first magnet 81 and can limit the first magnet 81. The hole wall of the stopper hole 121 can restrict the movement of the first magnet 81 in the direction perpendicular to the magnetization direction of the first magnet 81. The shape and size of the limiting hole 121 are respectively matched with the shape and size of the first magnet 81.

For example, one of the modes of operation may be: the limiting member 12 is placed on the first mounting member 11, the through holes 122 of the limiting member 12 correspond to the positions of the positioning portions 111, one first magnet 81 is placed in each limiting hole 121, and then the connecting member 91 of the flywheel 90 passes through the through holes 122 and is sleeved on the positioning portions 111, so that the limiting member 12 and the first magnets 81 accommodated in the limiting holes 121 are positioned, one side of the rotating disc 92 of the flywheel 90, which is away from the connecting surface 921, is pressed until the plurality of first magnets 81 are clamped by the connecting surfaces 921 of the first mounting member 11 and the rotating disc 92 of the flywheel 90, so as to form the half-assembly member 200 shown in fig. 6, and an installation space 801 for accommodating the second magnet 82 is formed between every two adjacent first magnets 81 of the half-assembly member 200.

In order to connect the turntable 92 and the first magnet 81, an adhesive may be used. As an embodiment, before the connecting member 91 of the flywheel 90 is fitted on the positioning portion 111, glue is dispensed on the surface of the first magnet 81 contacting with the rotating disk 92, or glue is dispensed on the connecting surface 921 of the rotating disk 92, and then the connecting member 91 of the flywheel 90 is fitted on the positioning portion 111, and the side of the rotating disk 92 of the flywheel 90 away from the connecting surface 921 is pressed, so that the first magnet 81 is adhered to the connecting surface 921. Therefore, in one embodiment, the rotating disc 92 of the flywheel 90 is provided with a glue overflow hole 901, and the glue overflowing when the flywheel 90 and the first magnet 81 are squeezed can be received in the glue overflow hole 901, so as to prevent the glue from overflowing toward the edge of the flywheel 90 and causing the first magnet 81 and the limiting member 12 to be adhered. As another embodiment, after the plurality of first magnets 81 are clamped by the connecting surface 921 of the first mounting member 11 and the rotating disk 92 of the flywheel 90, glue may be dispensed between the first magnets 81 and the rotating disk 92 through the glue-spilling holes 901.

Since the limiting hole 121 is adapted to the first magnet 81, the hole wall of the limiting hole 121 is tightly attached to the side surface of the first magnet 81, so that the limiting member 12 covers the portion of the first mounting member 11 adjacent to the first magnet 81, when dispensing is performed on the first magnet 81, the limiting member 12 blocks the contact between the colloid and the first mounting member 11, thereby preventing the colloid from being spotted on the first mounting member 11 to contaminate the first mounting member 11, and simultaneously blocking the colloid from flowing along the side surface of the first magnet 81 toward the first mounting member 11, thereby preventing the adhesion between the first magnet 81 and the first mounting member 11 caused by the colloid flowing along the side surface of the first magnet 81 to the joint of the first magnet 81 and the first mounting member 11.

The position limiting member 12 can be made of a material with good anti-sticking property, such as polytetrafluoroethylene.

Referring to fig. 4 and 5 again, the plurality of limiting holes 121 are disposed around the central axis of the through hole 122, and the plurality of limiting holes 121 are co-circular. When the connector 91 of the flywheel 90 is inserted into the through hole 122, the first magnet 81 is disposed around the connector 91. The through hole 122 is located at a central position corresponding to an annular structure formed by surrounding the plurality of limiting holes 121, so that the connecting piece 91 of the flywheel 90 is also located at the central position of the annular structure formed by the plurality of first magnets 81, and accurate alignment of the flywheel 90 and the first magnets 81 is realized.

Referring to fig. 5, the first mounting member 11 is provided with a receiving groove, the receiving groove can receive the plurality of first magnets 81, and when the positioning portion 111 is connected to the connecting member 91 of the flywheel 90, the plurality of limiting holes 121 are all opposite to the receiving groove, so that each first magnet 81 can be partially located in the limiting hole 121, and partially received in the receiving groove. During the use, can place first magnet 81 earlier in the storage tank, the cell wall of storage tank can restrict first magnet 81 in the sub-scope to tentatively fix a position first magnet 81, spacing hole 121 of rethread locating part 12 carries out accurate location.

Specifically, the first mount 11 has a first mounting surface 1101, and the notch of the accommodation groove is located on the first mounting surface 1101. The stopper 12 can be provided on the first mounting surface 1101. When the limiting member 12 is placed on the first mounting surface 1101, the central axis of the through hole 122 of the limiting member 12 is perpendicular to the first mounting surface 1101, and the through hole 122 and the plurality of limiting holes 121 are located opposite to the accommodating groove.

Specifically, the accommodating groove has a plurality of spaced limiting portions 112, each limiting portion 112 can correspond to one limiting hole 121, and each limiting portion 112 can accommodate a part of one first magnet 81 and can limit the first magnet 81. Then, when the positioning portions 111 are connected to the connecting member 91, each of the position-limiting portions 112 is opposed to one of the position-limiting holes 121, and a part of each of the first magnets 81 is accommodated in the position-limiting portion 112 and a part is accommodated in the position-limiting hole 121. Specifically, each of the limiting portions 112 is adapted to the first magnet 81, and the plurality of limiting portions 112 can limit the position of each of the plurality of first magnets 81 to position the position of each of the plurality of first magnets 81. According to the design, the first magnet 81 can be limited by the limiting part 112 of the accommodating groove, during operation, the first magnets 81 can be placed in the limiting parts 112 respectively, then the limiting part 12 is installed on the first installation surface 1101 of the first installation part 11, the limiting holes 121 of the limiting part 12 correspond to the limiting parts 112 one by one, the limiting part 12 is sleeved on the first magnets 81, each limiting hole 121 corresponds to one first magnet 81, therefore, a positioning structure for positioning the limiting part 12 is not needed to be additionally arranged, and the limiting part 12 is directly positioned by the first magnets 81 installed in the limiting parts 112.

It is understood that, in other embodiments, the positioning of the limiting element 12 can also be achieved by directly mounting the limiting element 12 on the first mounting element 11 through a fastening element (e.g., a screw, etc.), a snap, an adhesive, a welding, etc., and thus, the first mounting element 11 may not have a receiving groove with the limiting portion 112.

Alternatively, in one embodiment, a positioning surface portion is disposed on a hole wall of the through hole 122, and the positioning surface portion can prevent the relative rotation between the connecting member 91 and the limiting member 12 when the connecting member 91 is inserted into the through hole 122, and at the same time, the connecting member 91 is prevented from rotating relative to the positioning portion 111 by setting a tangent plane between the connecting member 91 and the positioning portion 111, so that the positioning of the limiting member 12 can be achieved when the connecting member 91 is inserted into the through hole 122, and for the positioning manner, the first mounting member 11 may not be provided with an accommodating groove having the limiting portion 112.

In one embodiment, the positioning portion 111 is disposed in the receiving groove and located at the center of the receiving groove, and the plurality of limiting portions 112 are disposed around the positioning portion 111. When the connector 91 is connected to the positioning portion 111, the connector 91 is positioned at the center of the annular structure formed by the plurality of first magnets 81.

The accommodating groove is further provided with an accommodating gap 113 which is positioned between the positioning part 111 and the limiting part 112 and can accommodate the butt joint part (namely the connecting piece 91) of the flywheel 90, and the accommodating gap 113 is communicated with the limiting parts 112; accordingly, the plurality of stopper holes 121 on the stopper 12 are all communicated with the through hole 122. After the connecting piece 91 is inserted into the accommodating gap 113, the first magnet 81 can be abutted against the connecting piece 91, so that the first magnet 81 can be conveniently mounted, and the first magnets 81 can be limited from shaking towards the central axis of the annular structure formed by enclosing the first magnets 81.

Referring to fig. 4, in order to facilitate the assembly of the first magnet 81 to the flywheel 90, the sum of the depth of the accommodating groove and the depth of the position-limiting hole 121 is less than or equal to the height of the first magnet 81, so that when the first magnet 81 is disposed in the accommodating groove and the position-limiting hole 121, the first magnet 81 can protrude from or be flush with the side surface of the position-limiting member 12 away from the first mounting surface 1101 of the first mounting member 11, so as to facilitate the assembly of the first magnet 81 and the flywheel 90. The depth of the receiving groove is the depth of the receiving groove in the direction perpendicular to the first mounting surface 1101. The limiting member 12 is substantially a plate-shaped structure, and the depth of the limiting hole 121 is the thickness of the limiting member 12. The height of the first magnet 81 is the thickness of the first magnet 81 in its magnetizing direction. Preferably, the sum of the depth of the accommodating groove and the depth of the limiting hole 121 is smaller than the height of the first magnet 81, so that the first magnet 81 can protrude from the side surface of the limiting member 12 away from the first mounting member 11 when being accommodated in the limiting hole 121 and the accommodating groove.

In other embodiments, the accommodating groove is not a groove formed by recessing the first mounting surface 1101, but is a groove formed by a limiting structure protruding out of the first mounting surface 1101.

In other embodiments, the through hole 122 may be provided for the positioning portion 111 to pass through. At this time, the positioning portion 111 is a tubular structure, the connecting piece 91 of the flywheel 90 is a column, when the connecting piece 91 of the flywheel 90 is connected with the positioning portion 111, the connecting piece 91 is partially accommodated in the positioning portion 111, and at this time, the accommodating space does not need to be provided with the accommodating gap 113 between the positioning portion 111 and the limiting portion 112.

Referring to fig. 7, the first assembling mechanism 10 further includes a clamping member 13, the clamping member 13 and the first mounting member 11 can clamp the first magnet 81 and the flywheel 90 together, and the clamping member 13 and the first mounting member 11 can clamp the first magnet 81 and the flywheel 90 together, so that the first magnet 81 and the flywheel 90 can be kept in close contact in the bonding process, and the bonding strength between the first magnet 81 and the flywheel 90 is improved.

In order to reduce the uneven installation of the flywheel 90 and the first magnet 81 caused by uneven application of the adhesive, please refer to fig. 8, the clamping member 13 has a clamping surface 1301, and the clamping surface 1301 can abut against the side of the rotating disc 92 away from the first magnet 81, in other words, when the clamping member 13 and the first mounting member 11 clamp the first magnet 81 and the flywheel 90, the clamping surface 1301 abuts against the side of the rotating disc 92 away from the first magnet 81. In this way, after the flywheel 90 and the first magnet 81 are positioned, the clamping member 13 is pressed against the rotating disc 92 of the flywheel 90, and then the clamping member 13 is pressed, so that the clamping member 13 and the first mounting member 11 clamp the first magnet 81 and the flywheel 90 together, thereby realizing the tight connection between the flywheel 90 and the first magnet 81. Meanwhile, the clamping piece 13 facilitates uniform force application on the flywheel 90, so that the thicknesses of the glue used for bonding between the flywheel 90 and each first magnet 81 are consistent, and the flatness of the plurality of first magnets 81 installed on the flywheel 90 is improved.

Referring to fig. 5, 7 and 8 again, the limiting member 12 is provided with a limiting groove 123, the clamping member 13 is provided with a first limiting boss 131, and the first limiting boss 131 can be partially accommodated in the limiting groove 123 to limit the limiting member 12 to move relative to the first mounting member 11 in a direction perpendicular to the axis of the through hole 122, that is, to prevent the limiting member 12 from moving on the first mounting surface 1101. Specifically, the first limit projection 131 is provided on the clamping surface 1301. When the clamping member 13 and the first mounting member 11 clamp the flywheel 90 together, the clamping surface 1301 abuts against a side of the turntable 92 of the flywheel 90, which is away from the first magnet 81, and the first limiting boss 131 is partially accommodated in the limiting groove 123, so that the position of the limiting member 12 on the first mounting surface 1101 is fixed, and the limiting member 12 is prevented from driving the first magnet 81 to shift.

Specifically, there are two first limiting bosses 131, the two first limiting bosses 131 are spaced apart from each other, and the two limiting grooves 123 correspond to each other, so that when the clamping member 13 and the first mounting member 11 clamp the first magnet 81 and the flywheel 90 together, the limiting member 12 is located between the two first limiting bosses 131.

Optionally, one side of the first limiting boss 131, which is far away from the clamping surface 1301, can abut against the first mounting surface 1101 of the first mounting part 11, so as to prevent the clamping surface 1301 and the first mounting part 11 from pressing the flywheel 90 and the first magnet 81, and prevent the flywheel 90 from continuously pressing the first magnet 81 to damage the first magnet 81.

In this embodiment, when the clamping member 13 abuts against the flywheel 90, the flywheel 90 is located between the two first limiting bosses 131, and the two first limiting bosses 131 support two sides of the clamping member 13 respectively, so that when the first limiting bosses 131 abut against the first mounting surface 1101, the clamping surface 1301 is parallel to the first mounting surface 1101, thereby realizing stable abutment of the clamping member 13 against the flywheel 90.

It should be noted that the number and shape of the first limiting bosses 131 are not limited to this, for example, there may be one first limiting boss 131, and the first limiting boss may be a strip or a ring extending along the circumferential direction of the half assembly 200.

In other embodiments, the first limiting projection 131 may not abut against the first mounting member 11.

Referring to fig. 7 and 8, the clamping member 13 is further provided with a first positioning structure 132, the first mounting member 11 is further provided with a second positioning structure 1102 capable of being matched with the first positioning structure 132, one of the first positioning structure 132 and the second positioning structure 1102 is a sliding block, and the other one is a guide groove for the sliding block to be inserted. The cooperation of the first and second locating structures 132 and 1102 can facilitate the mounting of the clamp 13 to the first mount 11. In assembly, after the flywheel 90 is covered on the first magnet 81, the first positioning structure 132 is matched with the second positioning structure 1102, and the clamping piece 13 moves towards the first mounting surface 1101 until the clamping piece 13 and the first mounting piece 11 together clamp the first magnet 81 and the flywheel 90. The cooperation of the first positioning structure 132 and the second positioning structure 1102 guides the clamping member 13, and prevents the clamping member 13 from shaking or skewing during moving toward the first mounting member 11.

In the illustrated embodiment, the first positioning structure 132 is a sliding block protruding from the clamping surface 1301, the sliding block is defined as a first sliding block, the protruding direction of the first sliding block is perpendicular to the clamping surface 1301, the second positioning structure 1102 can be a guide groove adapted to the first sliding block, the guide groove is defined as a first guide groove, the first guide groove is used for the first sliding block to be inserted into, the central axis of the first guide groove is perpendicular to the first mounting surface, and the first guide groove can be a blind groove or a through first mounting part 11. When the clamping device is used, the first sliding block is inserted into the first guide groove and slides along the opening direction of the first guide groove, so that the clamping piece 13 is extruded towards the first mounting piece 11. In this embodiment, there are two first sliding blocks, the two first sliding blocks are respectively disposed on two sides of the clamping member 13, and there are two corresponding first guiding grooves, and the positions of the two first sliding blocks are opposite to each other. It should be noted that the specific structures of the first positioning structure 132 and the second positioning structure 1102 are not limited to this, and in other embodiments, the first positioning structure 132 may be a guide groove, and the second positioning structure 1102 may be a slider.

Optionally, referring to fig. 7 and 8, the clamping member 13 is further provided with a first positioning hole 1302, the first mounting member 11 is provided with a second positioning hole 1103, and a fastener can be installed in the first positioning hole 1302 and the second positioning hole 1103 during assembly, so that the clamping member 13 and the first mounting member 11 are assembled into a whole. The second positioning hole 1103 can be a blind hole, and at this time, the second positioning hole 1103 is a threaded hole.

Referring to fig. 9, the second mounting mechanism 20 includes a second mounting member 21.

The positioning groove 211 is formed in the second mounting member 21, the positioning groove 211 can accommodate the flywheel 90 with the first magnet 81 mounted thereon, i.e., the half-assembly member 200 is accommodated, the positioning groove 211 can be accommodated in the positioning groove 211 together with the flywheel 90, two adjacent first magnets 81 together enclose at least a part of a positioning space for accommodating the second magnet 82, i.e., the positioning groove 211 and the half-assembly member 200 overlap with each other to form a positioning space, i.e., two adjacent first magnets 81, a groove wall of the positioning groove 211, and the connecting surface 921 of the turntable 92 of the flywheel 90 together enclose a positioning space for accommodating one second magnet 82.

One of the operation modes can be as follows: the half-assembly part 200 assembled on the first assembly mechanism 10 is taken out, the half-assembly part 200 is placed in the positioning groove 211, the connecting surface 921 of the rotating disc 92 faces upward, at this time, the positioning groove 211, the flywheel 90 and the two adjacent first magnets 81 jointly enclose to form a positioning space, the second magnet 82 is placed on the positioning space, then the second magnet 82 is pushed towards the rotating disc 92 until the second magnet 82 is abutted to the connecting surface 921 of the rotating disc 92, at this time, the first magnets 81 and the second magnets 82 are alternately arranged to jointly form the Halbach array magnet 80, and the Halbach array magnet 80 and the flywheel 90 jointly form the assembled finished product 300.

This assembly jig 100 can realize treating being connected of assembly spare and first installed part 11 and fix a position through location portion 111 of first assembly devices 10, realizes spacing to first magnet 81 through the perforating hole 122 and the spacing hole 121 that is used for spacing first magnet 81 that set up on the locating part 12 and a plurality of intervals to be convenient for assemble first magnet 81 to treating on the assembly spare through using first assembly devices 10, in order to form half an assembly spare 200. Then, the positioning groove 211 on the second mounting member 21 is used to position the half-assembly 200, and a positioning space for placing the second magnet 82 is formed by the groove wall of the positioning groove 211 and the half-assembly 200, so as to mount the second magnet 82 on the half-assembly 200, thereby forming the assembled product 300. This assembly jig 100 independently assembles first magnet 81 and second magnet 82 respectively through first assembly devices 10 and second assembly devices 20, can realize the quick convenient equipment of halbach array magnet 80, improves assembly efficiency.

In order to realize the quick fixation of the first magnet 81 and the flywheel 90, the first assembling mechanism 10 provided with the first magnet 81 and the flywheel 90 can be placed into an oven for baking; in order to achieve a quick fixation of the second magnet 82, the second mounting mechanism 20 with the second magnet 82 and the half assembly 200 mounted thereon may also be placed in an oven for baking.

In the present embodiment, the first assembling mechanism 10 and the second assembling mechanism 20 are two independent mechanisms, so as to be convenient to hold and store. At the same time, the independent arrangement allows the two to operate without interfering with each other, for example, when the first assembly mechanism 10 is placed in the oven integrally with the half assembly 200, the second assembly mechanism 20 can continue to operate. Wherein, the relative both sides of at least one in first installed part 11, second installed part 21, holder 13 can all be seted up and hold the groove, form the waist, and the user can hold this waist during the use, avoids the landing.

In other embodiments, the first mounting member 11 and the second mounting member 21 may be connected and formed as an integral member to avoid loss.

In this embodiment, referring to fig. 9 and 10, second mounting member 21 has second mounting surface 2101, and detent 211 is located on a side of second mounting member 21 near second mounting surface 2101, i.e., the notch of detent 211 is located on second mounting surface 2101. In this embodiment, the positioning slot 211 can limit the half assembly 200, the depth of the positioning slot 211 is greater than the thickness of the rotating disc 92, when the rotating disc 92 is placed in the positioning slot 211, a part of the first magnet 81 is contained in the positioning slot 211, and a part of the first magnet protrudes out of the second installation surface 2101, so as to facilitate the installation of the second magnet 82.

Referring to fig. 10, in order to prevent the turntable 92 from being difficult to press into the positioning groove 211 due to the negative pressure between the turntable 92 and the bottom of the positioning groove 211 when the turntable 92 is placed in the positioning groove 211, and the bottom of the positioning groove 211 is not in good fit with the bottom of the positioning groove 211, the bottom of the positioning groove 211 is provided with a through hole 212 penetrating through the second mounting member 21, and the through hole 212 can make the air pressure in the positioning groove 211 consistent with the outside, so that the turntable 92 is fitted with the bottom of the positioning groove 211 after being placed in the positioning groove 211.

Meanwhile, the insertion hole 212 can also be used for inserting an auxiliary tool into the positioning groove 211 from the outside, if the flywheel 90 is clamped in the positioning groove 211 and cannot be taken out, the auxiliary tool can be inserted into the positioning groove 211 through the insertion hole 212, and the flywheel 90 is ejected out of the positioning groove 211 through the auxiliary tool.

Wherein the hole diameter of the through hole 212 is larger than the hole diameter of the through hole 911 of the connecting piece 91, so that the auxiliary tool can be pressed against the rotating disc 92. Optionally, a central axis of the through-hole 212 coincides with a central axis of the positioning groove 211, and an opening of the through-hole 212 away from the positioning groove 211 is flared so as to facilitate alignment of the auxiliary tool with the through-hole 212.

Further, the second assembling mechanism 20 further includes an abutting piece 22, and the abutting piece 22 can embed the second magnet 82 into the positioning space.

Referring to fig. 11, the abutting member 22 has an abutting surface 2201, the abutting surface 2201 of the abutting member 22 is provided with a second limiting protrusion 221, and the second limiting protrusion 221 can abut against the second mounting surface 2101 to prevent the abutting surface 2201 from moving toward the direction close to the second magnet 82, so as to prevent the abutting member 22 and the second mounting member 21 from extruding the second magnet 82. Then, when the pushing member 22 presses the second magnet 82, the second magnet 82 can be pushed toward the rotating disc 92 until the second limiting protrusion 221 is pushed against the second mounting surface 2101, at this time, the pushing surface 2201 simultaneously contacts the first magnet 81, and the pushing member 22 cannot continuously move toward the flywheel 90, so as to prevent the first magnet 81 and the second magnet 82 from being damaged due to excessive pressure applied by the pushing member 22.

In this embodiment, two second limiting bosses 221 are provided, the two second limiting bosses 221 are symmetrically disposed and spaced apart from each other, when the abutting part 22 abuts against the second magnet 82, the second magnet 82 is located between the two second limiting bosses 221, and the two second limiting bosses 221 respectively support two sides of the abutting part 22, so that when the second limiting bosses 221 abut against the second mounting surface 2101, the abutting surface 2201 is parallel to the second mounting surface 2101, thereby realizing stable abutting of the abutting part 22 against the flywheel 90.

It should be noted that the number and shape of the second limit projections 221 are not limited to this, for example, one second limit projection 221 may be provided, and may be a strip or a ring extending along the circumferential direction of the half assembly 200.

Referring to fig. 10 and 11, the pushing member 22 is provided with a third positioning structure 222, the second mounting member 21 is further provided with a fourth positioning structure 213 capable of being matched with the third positioning structure 222, one of the third positioning structure 222 and the fourth positioning structure 213 is a sliding block, and the other is a guide groove for the sliding block to be inserted. During assembly, after the second magnet 82 is placed in the positioning space, the third positioning structure 222 is matched with the fourth positioning structure 213, and the pushing member 22 moves towards the second mounting surface 2101 until the pushing member 22 and the second mounting member 21 clamp the second magnet 82 and the flywheel 90 together. The cooperation of the third positioning structure 222 and the fourth positioning structure 213 realizes the guiding and limiting of the abutting member 22.

In the illustrated embodiment, the third positioning structure 222 is a slider protruding from the pushing surface 2201, the slider is defined as a second slider, the protruding direction of the second slider is perpendicular to the pushing surface 2201, the fourth positioning structure 213 may be a guide groove adapted to the second slider, the guide groove is defined as a second guide groove, the central axis of the second guide groove is perpendicular to the second mounting surface 2101, and the second guide groove may be blind hole-shaped and may also pass through the second mounting element 21. When the pushing device is used, the second sliding block is inserted into the second guide groove and slides along the opening direction of the second guide groove, so that the pushing piece 22 is extruded towards the second mounting piece 21. In this embodiment, there are two second sliding blocks, the two second sliding blocks are respectively disposed on two sides of the second extrusion plate, and there are two corresponding second guiding grooves, which are opposite to the two second sliding blocks. It should be noted that the specific structures of the third positioning structure 222 and the fourth positioning structure 213 are not limited to this, and in other embodiments, the third positioning structure 222 may be a guide groove, and the fourth positioning structure 213 may be a slider.

Optionally, referring to fig. 10 and 11, the pushing member 22 is provided with a third positioning hole 2202, the second mounting member 21 is provided with a fourth positioning hole 2102, and a fastening member can be installed in the third positioning hole 2202 and the fourth positioning hole 2102 during assembly, so that the pushing member 22 and the second mounting member 21 are assembled into a whole. The fourth positioning hole 2102 may be a blind hole, and the fourth positioning hole 2102 may be a threaded hole.

The foregoing is considered as illustrative only of the preferred embodiments of the utility model, and is presented merely for purposes of illustration and description of the principles of the utility model and is not intended to limit the scope of the utility model in any way. Any modifications, equivalents and improvements made within the spirit and principles of the utility model and other embodiments of the utility model without the creative effort of those skilled in the art are included in the protection scope of the utility model based on the explanation here.

Claims (10)

1. The utility model provides an assembly tool for assemble halbach array magnet on waiting to assemble, halbach array magnet includes first magnet and second magnet, the direction of magnetizing of second magnet is relative the direction of magnetizing of first magnet is perpendicular or slope, its characterized in that, the assembly tool includes:

the first assembling mechanism comprises a first assembling part and a limiting part, wherein the first assembling part is provided with a positioning part which can be detachably connected with the to-be-assembled part and can position the to-be-assembled part, the limiting part is provided with a through hole and a plurality of spaced limiting holes, the through hole can be used for the to-be-assembled part or the positioning part to penetrate through, and each limiting hole can contain at least one part of one first magnet and limit the first magnet;

the second assembling mechanism comprises a second assembling part, the second assembling part is provided with a positioning groove which can accommodate and install the first magnet and is used for treating the assembling part, and the groove wall of the positioning groove can be surrounded by the first magnet and the assembling part and two adjacent first magnets to form a positioning space which can accommodate at least part of the second magnet.

2. The assembly jig according to claim 1, wherein a plurality of the stopper holes are provided around a central axis of the through hole, and the plurality of stopper holes are concentric; the first mounting piece is provided with a containing groove, the containing groove can contain a plurality of first magnets, and when the positioning part is connected with the to-be-assembled piece, the plurality of limiting holes are opposite to the containing groove, so that each first magnet can be partially positioned in the limiting holes, and partially contained in the containing groove.

3. The assembly fixture according to claim 2, wherein the receiving groove has a plurality of spaced limiting portions, each of the limiting portions is capable of corresponding to one of the limiting holes, and each of the limiting portions is capable of receiving a portion of one of the first magnets and limiting the first magnet.

4. The assembly jig according to claim 3, wherein the positioning portion is at least partially receivable in the abutting part of the member to be assembled, the positioning portion is disposed in the receiving groove and is located at a center of the receiving groove, and the plurality of limiting portions are disposed around the positioning portion; the accommodating groove is also provided with an accommodating gap which is positioned between the positioning part and the limiting part and can accommodate the butt joint part of the part to be assembled, and the accommodating gap is communicated with the limiting parts; the limiting holes are communicated with the through holes.

5. The assembly jig according to any one of claims 2 to 4, wherein the sum of the depth of the accommodating groove and the depth of the limiting hole is smaller than the height of the first magnet, so that the first magnet can protrude out of the side of the limiting member away from the first mounting member when being accommodated in the limiting hole and the accommodating groove;

and/or when the positioning part is connected with the part to be assembled, the part to be assembled can be limited to rotate relative to the positioning part.

6. The assembly jig according to claim 1, wherein the first assembly mechanism further comprises a holding member capable of holding the first magnet and the member to be assembled together with the first mounting member.

7. The assembly jig according to claim 6, wherein the limiting member further has a limiting groove, the holding member has a first limiting protrusion, and the first limiting protrusion can be partially received in the limiting groove to limit the movement of the limiting member relative to the first mounting member in a direction perpendicular to the axis of the through hole.

8. The assembly jig of claim 6, wherein the clamping member has a clamping surface, the clamping surface can clamp the first magnet and the to-be-assembled member together with the first mounting member, the clamping surface is provided with a first limiting boss in a protruding manner, and one side of the first limiting boss, which is far away from the clamping surface, can abut against the first mounting member so as to prevent the clamping surface and the first mounting member from pressing the to-be-assembled member and the first magnet.

9. The assembly jig of claim 1, wherein the bottom of the positioning groove is provided with a through hole penetrating through the second mounting member.

10. The assembly fixture according to claim 1, wherein the second assembly mechanism further includes a pushing member, the pushing member can push the second magnet into the positioning space, the pushing member has a pushing surface, a second limiting boss is protruded from the pushing surface, and the second limiting boss can abut against the second mounting member to prevent the pushing surface and the second mounting member from pressing the second magnet and the first magnet.

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