CN113542996B

CN113542996B - Tool jig for micro loudspeaker and assembling process thereof

Info

Publication number: CN113542996B
Application number: CN202110710516.5A
Authority: CN
Inventors: 顾泰军; 许泽孝; 路豪
Original assignee: Xiamen Kingrise Electronic Co ltd
Current assignee: Xiamen Kingrise Electronic Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2023-03-24
Anticipated expiration: 2041-06-25
Also published as: CN113542996A

Abstract

The utility model provides an equipment tool and equipment technology of miniature loudspeaker, relates to the miniature loudspeaker field, including the support module that is used for fixing a position the frock to support and voice coil loudspeaker voice coil, be used for fixing a position the protecgulum module of frock and be used for assisting the wire-wound positioning jig of lead wire of voice coil loudspeaker voice coil to protecgulum and diaphragm. The assembling process of miniature loudspeaker includes setting the support into the support module; mounting the voice coil into the support module; positioning the lead wire of the voice coil by using a positioning jig; spot welding is carried out on the voice coil lead, and waste wires are pulled out; the front cover is arranged in the front cover module, and then the diaphragm is arranged in the front cover; gluing the edge of the front cover and the center of the membrane; the bracket module is buckled with the front cover module, the bracket module is ejected out after drying, and the product is attached to the front cover module; and (5) loading the magnetic circuit into a product, and attaching a dustproof net to finish processing. The process is simplified, the assembly efficiency is improved, the tool jig does not need to be frequently replaced, and the assembly precision among the parts of the loudspeaker is guaranteed.

Description

Tool jig for micro loudspeaker and assembling process thereof

Technical Field

The invention relates to the field of miniature loudspeakers, in particular to a tool jig for a miniature loudspeaker and an assembling process of the tool jig.

Background

The existing earphone horn can be roughly divided into an in-ear earphone horn and a half-in-ear earphone horn, wherein the horn size of the in-ear earphone horn is far smaller than the size of the half-in-ear earphone horn, and the in-ear earphone horn is small in size, so that the assembly precision requirement between parts is higher, the assembly precision between the parts can be influenced by the change of the tool module at each time, and further the consistency is poor, so that the in-ear earphone horn assembly has higher assembly requirements for the half-in-ear earphone horn.

Conventional horn machining processes typically include the following steps: firstly, placing a diaphragm in a diaphragm tool fixture, then adhering a voice coil to the diaphragm to fix the diaphragm and the voice coil, and then ejecting to obtain a diaphragm voice coil assembly; placing the bracket into a bracket tooling fixture, then placing a magnet into the U cup, then placing the combined U cup into the U cup tooling fixture, then pressing the bracket tooling fixture and the U cup tooling fixture together, and ejecting to obtain a bracket component; and then, pressing the diaphragm voice coil assembly and the support assembly, and finally adding a front cover to complete the assembly of the whole loudspeaker. At each above-mentioned process, the combination all needs different tool at every turn, and the processing step is loaded down with trivial details, leads to machining efficiency low, and needs frequently to change the frock module in assembling process, and easy product assembly error influences the assembly precision between each part.

Disclosure of Invention

Aiming at the problems, the invention provides a tool jig for a micro-speaker and an assembly process thereof. The specific technical scheme is as follows:

an assembly jig for a micro loudspeaker comprises a support module, a front cover module and a positioning jig, wherein the support module is used for positioning a fixture for a support and a voice coil, the front cover module is used for positioning a fixture for a front cover and a diaphragm, the positioning jig is used for assisting in wire winding of the voice coil, the support module and the front cover module can be mutually buckled and used for assembling the micro loudspeaker, the support module is a first tooling plate, a plurality of support tooling grooves which are uniformly distributed at intervals are formed in the first tooling plate, a voice coil which protrudes out of the bottom surface of each support tooling groove is arranged in the middle of each support tooling groove, a jack is formed in the middle of each voice coil positioning ring, a first extrusion hole is formed in the bottom surface of each support tooling groove, the first extrusion hole penetrates through the whole first tooling plate, and positioning round holes are further formed in two ends of the first tooling plate respectively; one side of the support module is also provided with a wire clamping structure for clamping a lead wire of the voice coil so as to clamp and position the lead wire of the voice coil; the front cover module is a second tooling plate, a plurality of front cover tooling grooves corresponding to the plurality of support tooling grooves in position and number are formed in the second tooling plate, a diaphragm supporting column is arranged in each front cover tooling groove, the top of each diaphragm supporting column is inwards sunken to form a sunken part, and the sunken shape of each sunken part is matched with the shape of the middle part of a diaphragm to be assembled; a second extrusion hole is formed in the bottom of each front cover tooling groove, the second extrusion holes penetrate through the whole second tooling plate, positioning semicircular bulges are respectively arranged at two ends of the second tooling plate, and the positioning semicircular bulges are matched with the positioning round holes to realize positioning and buckling of the support module and the front cover module; the positioning jig comprises a positioning part and an inserting part, wherein the positioning part is used for being matched with the voice coil positioning ring to limit the movement of a voice coil, and the inserting part is used for being inserted into the inserting hole, and the inserting part can be inserted into the inserting hole and detachably connected with the support module.

Furthermore, the positioning jig comprises a T-shaped positioning main body, and a pair of protruding structures are formed by extending downwards at the center of the bottom of the T-shaped structure of the positioning main body to form the inserting part for being inserted into the inserting hole; the both sides downwardly extending of the bottom of the T-shaped structure of location main part forms the arc extending structure of two symmetrical arrangements and forms spacing portion, the inside wall of spacing portion with the lateral wall cooperation of voice coil loudspeaker voice coil holding ring is used for the frock location of voice coil loudspeaker voice coil.

Furthermore, the wire clamping structure is a plurality of wire clamping columns arranged on one side of the support module, every two adjacent wire clamping columns are used for clamping voice coil lead wires, each support tooling groove corresponds to two sets of wire clamping columns respectively, and a preset distance exists between the two sets of wire clamping columns.

Further, the protecgulum module is in first magnetite is seted up respectively to the bellied both sides of location semicircle and is placed the hole, the support module is in the hole is placed to the second magnetite has been seted up respectively to the both sides of location round hole, first magnetite place the hole with the second magnetite is placed downthehole the magnetite of having placed, makes through the attraction effect of magnetite the protecgulum module with the inseparable lock of support module.

Further, the line clamping columns are sleeved with silica gel sleeves to reduce adjacent two gaps between the line clamping columns so as to improve the clamping effect of the lead wires of the voice coils.

In addition, the invention also provides an assembly process of the miniature loudspeaker, which adopts the tool jig and comprises the following specific assembly steps:

s1, installing a support into a support module, and then installing a voice coil into the support module;

s2, positioning the lead of the voice coil by using a positioning jig;

s3, performing spot welding on the voice coil lead and pulling out the waste wire;

s4, the front cover is arranged in the front cover module, and then the diaphragm is arranged in the front cover;

s5, gluing the edge of the front cover and the center of the diaphragm;

s6, buckling the bracket module with the front cover module, ejecting the bracket module after drying, and attaching the product to the front cover module;

s7, the magnetic circuit is placed into a product, and a dustproof net is attached to finish machining.

Further, S1 packs the support into the support module, packs the voice coil loudspeaker voice coil into the support module again and includes: s11, placing the bracket into a bracket tooling groove of the bracket module; and S12, sleeving the voice coil on the voice coil positioning ring of the support module.

Further, S2 utilizes positioning jig to include with the lead wire location of voice coil loudspeaker voice coil: s21, inserting the inserting part of the positioning jig into the jack of the voice coil positioning ring for positioning, and enabling the limiting part of the positioning jig to be matched with the voice coil positioning ring for positioning the voice coil; and S22, drawing the lead of the voice coil to the outer side of the bracket module around the positioning jig, and enabling the lead of the voice coil to be tightly attached to the welding point of the bracket.

Further, S4, the step of installing the front cover into the front cover module and then installing the diaphragm into the front cover comprises the following steps: s41, the front cover is arranged in a front cover tooling groove of the front cover module; s42, a membrane is arranged in the front cover tool groove, and the middle part of the membrane is attached to a membrane supporting column of the front cover module.

Further, S7, loading the magnetic circuit into a product, attaching a dustproof net, and finishing processing comprises S71, loading a magnet into the U-shaped cup to form the magnetic circuit; s72, the magnetic circuit is arranged inside the product; and S73, attaching a dust screen to complete processing.

The invention has the beneficial effects that:

the invention provides a tool jig for a micro-speaker and an assembly process thereof, which mainly have the following beneficial effects:

1) The support module has set up the frock and the location that support frock groove and voice coil loudspeaker voice coil locating ring are used for support and voice coil loudspeaker voice coil, and the protecgulum module has then set up protecgulum frock groove and diaphragm support column and has been used for the frock and the location of protecgulum and diaphragm, and the structure level is clear, can pinpoint the position of each part, and then the assembly precision when ensureing the equipment.

2) Is beneficial to the assembly of the micro-speaker. Compared with the traditional tooling fixture, the tooling fixture provided by the invention is convenient for welding a welding point and a voice coil lead, and the voice coil and the support are placed on the support module together, so that the voice coil lead can be wound on the welding point to be welded by matching with the positioning fixture.

3) In the tooling jig for the micro-speaker provided by the invention, the tooling jig for assembling is mainly the bracket module and the front cover module, so that the original assembling process is correspondingly changed, and the tooling jig does not need to be frequently changed in the whole assembling process. The support module is used for installing support and voice coil loudspeaker voice coil, and the protecgulum module is used for installing protecgulum and diaphragm, recycles both locks and assembles, carries out the equipment of magnet and U cup at last, simplifies more in the process, has improved the efficiency of equipment. In addition, because the tool jig does not need to be frequently replaced, the assembly precision among all parts of the loudspeaker is more ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is an exploded view of a three-dimensional structure of a micro-horn;

FIG. 2 is a schematic diagram of a three-dimensional structure of a tooling fixture for a micro-speaker according to the present invention;

FIG. 3 is a schematic view of a positioning fixture;

FIG. 4 is a schematic three-dimensional view of a rack when placed in a rack module;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic diagram of a three-dimensional structure of a voice coil when the voice coil is placed in a cradle module;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a schematic three-dimensional view of the voice coil lead wire being inserted into the positioning fixture and being wound;

FIG. 9 is an enlarged partial view of FIG. 8;

FIG. 10 is a schematic three-dimensional view of the front cover when the front cover is placed in the front cover module;

FIG. 11 is an enlarged partial view of FIG. 10;

FIG. 12 is a schematic three-dimensional view of the diaphragm when placed in the front cover module;

fig. 13 is a partially enlarged view of fig. 12.

A-a front cover; b-a membrane; a C-voice coil; d-a scaffold; E-U cup; f-magnet; o-welding points;

10-a rack module; 101-a bracket tooling groove; 102-a voice coil positioning ring; 1021-a jack; 103-positioning round holes; 104-a first extrusion orifice; 105-wire clamping columns;

20-a front cover module; 201-front cover tooling slot; 202-membrane support posts; 203-positioning semicircular bulges; 204-a second extrusion orifice; 30-positioning a jig; 301-a limiting part; 302-insertion section.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; 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 according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Hereinafter, an assembly fixture for a micro-speaker according to the present invention will be described in more detail with reference to an embodiment and the accompanying drawings.

The existing earphone speaker also requires to be convenient for the welding process of the voice coil lead and the welding point as far as possible due to the characteristics of the speaker structure, the existing conventional speaker processing technology is relatively complicated, and the voice coil and the diaphragm are fixed together firstly, so that the welding of the voice coil lead and the welding point is not convenient.

Referring to fig. 1 and 2, in an embodiment, an assembly fixture for a micro-speaker is provided, including a support module 10 for positioning a support D and a voice coil C, a front cover module 20 for positioning a front cover a and a diaphragm B, and a positioning fixture 30 for assisting a lead wire of the voice coil C, where the support module 10 and the front cover module 20 can be mutually fastened to assemble the micro-speaker.

As shown in fig. 4 to 13, the bracket module 10 is a first tooling plate, the first tooling plate is provided with a plurality of bracket tooling grooves 101 distributed at uniform intervals, in this embodiment, the micro-speakers to be assembled are circular, and thus the bracket tooling grooves 101 are also of corresponding circular structures to adapt to the bracket D.

As shown in fig. 11, a voice coil positioning ring 102 protruding out of the bottom surface of each holder tooling groove 101 is disposed in the middle of each holder tooling groove 101, the outer diameter of the voice coil positioning ring 102 is matched with the inner diameter of a voice coil C to be machined, and the voice coil C can be accurately sleeved on the voice coil positioning ring 102 for machining.

In this embodiment, referring to fig. 5 and 9, a plug hole 1021 is further formed in the middle of the voice coil positioning ring 102, the positioning fixture 30 includes a limiting portion 301 for cooperating with the voice coil positioning ring 102 to limit the movement of the voice coil C, and an insertion portion 302 for being inserted into the plug hole 1021, and the insertion portion 301 can be inserted into the plug hole 1021 to be detachably connected with the rack module 10.

Referring to fig. 1 and 3, in the present embodiment, based on the position of the positioning fixture 30 during use, the positioning fixture 30 includes a T-shaped positioning body, and a pair of protruding structure forming insertion portions 302 are formed at the center of the bottom of the T-shaped structure of the positioning body and extend downward for being inserted into the insertion holes 1021. The two sides of the bottom of the T-shaped structure of the positioning main body extend downwards to form two symmetrically arranged arc-shaped extending structures to form a limiting part 301, and the inner side wall of the limiting part 301 is matched with the outer side wall of the voice coil positioning ring 102 to be used for positioning the voice coil C.

Further, as shown in fig. 2 and 4, a side surface of one side of the rack module 10 is wavy, the rack module 10 is provided with a plurality of wire clamping posts 105 on an end surface close to the side, each two adjacent wire clamping posts 105 are a group for clamping a voice coil lead, each rack tooling groove 101 corresponds to two groups of wire clamping posts 105, and a preset distance exists between the two groups of wire clamping posts 105, so that the lead drawn from the voice coil C can be clamped and positioned, thereby facilitating spot welding and improving the position accuracy during welding. Preferably, the wire clamping posts 105 are sleeved with a silicone sleeve (referring to fig. 2 and 4, fig. 2 is not sleeved with a silicone sleeve, and fig. 4 is sleeved with a silicone sleeve) to reduce a gap between two adjacent wire clamping posts 105 so as to improve a clamping effect on the lead wire of the voice coil C.

With continued reference to fig. 4 to 13, in this embodiment, the front cover module 20 is a second tooling plate, the second tooling plate is provided with a plurality of front cover tooling grooves 201 corresponding to the positions and the number of the plurality of support tooling grooves 101, a diaphragm supporting column 202 is arranged in each front cover tooling groove 201, the top of the diaphragm supporting column 202 is recessed inwards to form a recessed portion, and the recessed shape of the recessed portion is adapted to the shape of the middle portion of the diaphragm B to be assembled.

In addition, for realizing accurate cooperation of support module 10 and protecgulum module 20, still be provided with location round hole 103 respectively at the both ends of first frock board, be provided with location semicircle arch 203 respectively at the both ends of second frock board, location semicircle arch 203 cooperates location round hole 103 in order to realize support module 10 and protecgulum module 20's location and lock.

Furtherly, for the inseparable degree when strengthening the effect of lock and improving both locks, protecgulum module 20 has seted up first magnetite respectively in the protruding 203's in location semicircle both sides and has placed the hole (not mark), and support module 10 has seted up the second magnetite respectively in the both sides of location round hole 103 and has placed the hole (not mark), and first magnetite is placed the hole and is placed downthehole the magnetite of having placed with the second magnetite, makes protecgulum module 20 and the inseparable lock of support module 10 through the attraction effect of magnetite.

In this embodiment, a first extrusion hole 104 is formed in the bottom surface of each support tooling groove 101, the first extrusion hole 104 penetrates through the whole first tooling plate, a second extrusion hole 204 is formed in the bottom of each front cover tooling groove 201, and the second extrusion hole 204 penetrates through the whole second tooling plate. By providing the first extrusion hole 104 and the second extrusion hole 204, after the two modules are fastened and assembled, the assembled product can be ejected out through the ejector pin of the ejector plate (not shown), and then the magnetic circuit is assembled, thereby completing the whole assembly process.

In this embodiment, the holder module 10 is provided with the holder tooling groove 101 and the voice coil positioning ring 102 for tooling and positioning the holder and the voice coil, and the front cover module 20 is provided with the front cover tooling groove 201 and the diaphragm support column 202 for tooling and positioning the front cover and the diaphragm, so that the structure is well-arranged, the positions of the parts can be accurately positioned, and the assembly precision during assembly is further ensured.

Adopt the frock tool that this embodiment provided to be favorable to the equipment of miniature loudspeaker. Compared with the traditional tooling fixture, the tooling fixture provided by the invention is convenient for welding a welding point and a voice coil lead, and the voice coil and the support are placed on the support module together, so that the voice coil lead can be wound on the welding point to be welded by matching with the positioning fixture.

In addition, as shown in fig. 4 to 13, the invention further provides an assembly process of the micro-speaker, which adopts the tool fixture, and the assembly process comprises the following specific steps:

s1, installing a support D into a support module 10, and then installing a voice coil C into the support module 10;

s2, positioning the lead wire of the voice coil C by using the positioning jig 30;

s3, performing spot welding on the lead of the voice coil C and pulling out a waste wire;

s4, the front cover A is arranged in the front cover module 20, and then the diaphragm B is arranged in the front cover A; after the front cover a is put into the front cover module 20, glue can be applied to the central area of the front cover for standby application, which can be determined according to specific situations;

s5, gluing the edge of the front cover A and the center of the diaphragm B;

s6, buckling the support module 10 with the front cover module 20, ejecting the support module 10 after the glue is dried, and attaching the product to the front cover module 20;

Further, S1 packs into support module 10 with support D, packs into support module 10 with voice coil loudspeaker voice coil C again and includes: s11, placing the bracket D into a bracket tooling groove 101 of the bracket module 10; s12, the voice coil C is sleeved on the positioning ring 102 of the support module 10.

Further, the step S2 of positioning the lead wire of the voice coil C by using the positioning jig 30 includes: s21, inserting the inserting part 302 of the positioning jig 30 into the inserting hole 1021 of the voice coil positioning ring 102 for positioning, so that the limiting part 301 of the positioning jig 30 is matched with the voice coil positioning ring 102 to position the voice coil C; and S22, drawing the lead of the voice coil C to the outer side of the support module 10 around the main body part of the positioning jig 30, and enabling the lead of the voice coil C to be tightly attached to the welding point of the support D. In the method, one end of the lead wire of the voice coil is pulled out and clamped by the wire clamping column 105, and the radian of the lead wire is limited by the arc outer side wall of the limiting part 301 of the positioning jig 30, so that the positioning effect is achieved.

Further, the step S4 of mounting the front cover a into the front cover module 20 and mounting the membrane B into the front cover a includes: s41, the front cover A is arranged in a front cover tooling groove 201 of the front cover module 20; and S42, installing the diaphragm B into the front cover A installed in the front cover tooling groove 201, and enabling the middle part of the diaphragm B to be attached to the concave part of the diaphragm supporting column 202 of the front cover module 20, wherein the outer periphery of the concave part is matched with the position and the diameter of the voice coil positioning ring so as to glue, and the positions where the diaphragm B and the voice coil C are adhered are ensured to be consistent.

Further, S7, the magnetic circuit is arranged in a product, a dustproof net is attached, the processing is completed, S71, and the magnet F is arranged in the U cup E to form the magnetic circuit; s72, installing the magnetic circuit into the product; and S73, attaching a dustproof net to complete the processing.

Due to the fact that the tool jig is adopted, the main modules are the support module and the front cover module, the original assembling process is changed correspondingly, and the tool jig does not need to be changed frequently in the whole assembling process. The support module is used for installing support and voice coil loudspeaker voice coil, and the protecgulum module is used for installing protecgulum and diaphragm, recycles both locks and assembles, carries out the equipment of magnet and U cup at last, simplifies more in the process, has improved the efficiency of equipment. In addition, because the tool jig does not need to be frequently replaced, the assembly precision among all parts of the loudspeaker is more ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an equipment tool of miniature loudspeaker, its characterized in that, including the support module that is used for fixing a position the frock to support and voice coil loudspeaker voice coil, be used for fixing a position the protecgulum module of frock and be used for assisting the wire-wound positioning jig of lead wire of voice coil loudspeaker voice coil to protecgulum and diaphragm, the support module with the protecgulum module can lock each other and be used for assembling miniature loudspeaker, and wherein

The support module is a first tool plate, a plurality of support tool grooves are uniformly distributed at intervals on the first tool plate, a voice coil positioning ring protruding out of the bottom surface of each support tool groove is arranged in the middle of each support tool groove, a jack is arranged in the middle of each voice coil positioning ring, a first extrusion hole is arranged on the bottom surface of each support tool groove, the first extrusion holes penetrate through the whole first tool plate, and positioning round holes are respectively arranged at two ends of the first tool plate; one side of the support module is also provided with a wire clamping structure for clamping a lead wire of the voice coil so as to clamp and position the lead wire of the voice coil;

the front cover module is a second tooling plate, a plurality of front cover tooling grooves corresponding to the plurality of support tooling grooves in position and number are formed in the second tooling plate, a diaphragm supporting column is arranged in each front cover tooling groove, the top of each diaphragm supporting column is inwards sunken to form a sunken part, and the sunken shape of each sunken part is matched with the shape of the middle part of a diaphragm to be assembled; a second extrusion hole is formed in the bottom of each front cover tooling groove, the second extrusion holes penetrate through the whole second tooling plate, positioning semicircular bulges are respectively arranged at two ends of the second tooling plate, and the positioning semicircular bulges are matched with the positioning circular holes to realize positioning and buckling of the support module and the front cover module;

the positioning jig comprises a positioning part and an inserting part, wherein the positioning part is used for being matched with the voice coil positioning ring to limit the movement of a voice coil, and the inserting part is used for being inserted into the inserting hole, and the inserting part can be inserted into the inserting hole and detachably connected with the support module.

2. The assembly jig for the micro-speaker as claimed in claim 1, wherein the positioning jig comprises a positioning body having a T-shape, and a pair of protruding structures are formed by extending downward from the center of the bottom of the T-shaped structure of the positioning body to form the insertion portion for inserting into the insertion hole; the two sides of the bottom of the T-shaped structure of the positioning main body extend downwards to form two symmetrically arranged arc-shaped extending structures to form the limiting portion, and the inner side wall of the limiting portion is matched with the outer side wall of the voice coil positioning ring to be used for positioning the voice coil.

3. The assembly jig of claim 1, wherein the wire-clamping structure is a plurality of wire-clamping posts disposed on one side of the support module, each two adjacent wire-clamping posts are a group for clamping a voice coil lead, each support tooling groove corresponds to two groups of wire-clamping posts, and a predetermined distance exists between the two groups of wire-clamping posts.

4. The assembly jig for the micro-speaker as claimed in claim 1, wherein the front cover module has first magnet placing holes respectively formed at both sides of the protrusion of the positioning semi-circle, the bracket module has second magnet placing holes respectively formed at both sides of the positioning round hole, magnets are placed in the first magnet placing holes and the second magnet placing holes, and the front cover module and the bracket module are tightly fastened by attraction of the magnets.

5. The assembly jig of claim 3, wherein the wire-clamping posts are sleeved with a silicone sleeve to reduce a gap between two adjacent wire-clamping posts so as to improve a clamping effect on the lead of the voice coil.