WO2022047856A1

WO2022047856A1 - Voice coil manufacturing system and voice coil manufacturing method

Info

Publication number: WO2022047856A1
Application number: PCT/CN2020/117442
Authority: WO
Inventors: 吴崇灯; 陈俊; 张国建; 黄博
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声光电科技(常州)有限公司
Priority date: 2020-09-02
Filing date: 2020-09-24
Publication date: 2022-03-10
Also published as: CN112040376A; CN112040376B

Abstract

Disclosed are a voice coil manufacturing system and a voice coil manufacturing method. The voice coil manufacturing method comprises the following steps: winding metal wires into coils; then sleeving the coil on a positioning column one by one; and if the number of coils on the positioning column reaches a preset number, heating the preset number of coils, so that the preset number of coils are bonded and fixed to form a voice coil. The voice coil manufacturing system and the voice coil manufacturing method can change a serial winding and heating bonding process into a parallel process, can shorten a production cycle, and facilitate improving the production efficiency of voice coils.

Description

Voice coil manufacturing system and voice coil manufacturing method

technical field

The invention relates to the technical field of voice coils, in particular to a voice coil manufacturing system and a voice coil manufacturing method.

Background technique

A loudspeaker is a transducer device that converts an electrical signal into an acoustic signal. The voice coil is forced to move in a magnetic field in an electrified state, thereby driving the diaphragm to vibrate and generate sound.

At present, when making a voice coil with at least two coils, a winding machine is used to wind the coil. After the first coil is wound, the second coil is wound above or below the first coil; The pre-set number of coils are wound on the winding machine, and then each coil is bonded and fixed at one time. The winding process and the heating and bonding process are both completed on the winding machine, and there are serial processes, which increases the production rhythm of the voice coil, which is not conducive to improving the production efficiency of the voice coil.

beneficial effect

Based on this, it is necessary to provide a voice coil manufacturing system and a voice coil manufacturing method, which can change the serial winding and heating and bonding processes into parallel processes, which can shorten the production cycle and improve the production efficiency of the voice coil.

Its technical solutions are as follows:

In one aspect, the present invention provides a method for making a voice coil, comprising the following steps:

winding metal wires into coils;

Then put the coils one by one into the positioning column;

When the number of coils on the positioning post reaches a preset number, the preset number of coils is heated, so that the preset number of coils are bonded and fixed to form a voice coil.

When the above voice coil manufacturing method is used, a positioning column is used to receive the wound coil, and a preset number of coils are heated on the positioning column, and the preset number of coils are bonded and fixed to form a voice coil. In this process, the winding process and the heating process are carried out separately, and different numbers of winding machines and heating devices can be matched according to the time required to complete the two processes. In this way, the serial winding and heating and bonding processes are changed to parallel. The process can shorten the production cycle, which is beneficial to improve the production efficiency of the voice coil.

The technical solution is further described below:

In one embodiment, the metal wire is wound into a coil by a winding machine, and after the coil on the winding machine is taken out, the winding machine continues to wind the next coil.

In one embodiment, when the number of coils on the positioning column reaches a preset number, the method further includes: pressing the preset number of coils, and then heating the preset number of coils;

Or after heating the preset number of coils, the method further includes: pressing the preset number of coils, so that the preset number of coils are bonded and fixed to form a voice coil.

In another aspect, the present invention also provides a voice coil manufacturing system, including a winding machine, a heating device, a transfer device and a control device, the winding machine is used for winding the coil, the heating device includes a positioning column, and a heating device for heating the coil. The heating unit, the transfer device is used to transfer the coil on the winding machine to the positioning column, and the control device is connected in communication with the winding machine, the heating unit and the transfer device to execute the above voice coil manufacturing method.

When the above voice coil manufacturing system is used, the metal wire is wound into a coil by a winding machine, and then the coil wound on the winding machine is inserted into the positioning column through the transfer device; when the number of coils on the positioning column reaches a preset number When the heating unit is used to heat a preset number of coils, the preset number of coils are bonded and fixed to form a voice coil. In this process, the winding process and the heating process are carried out separately, and different numbers of winding machines and heating devices can be matched according to the time required to complete the two processes. In this way, the serial winding and heating and bonding processes are changed to parallel. The process can shorten the production cycle, which is beneficial to improve the production efficiency of the voice coil.

The technical solution is further described below:

In one embodiment, the positioning column is provided with a flow channel and a plurality of first air outlet holes spaced along the outer side of the positioning column, and the first air outlet holes are communicated with the flow channel; the heating device includes a support seat, and the support seat is provided with a convex body The convex body is arranged below the first air outlet to form a support part for supporting the coil; the heating unit is provided with a hot air outlet end, and the hot air outlet end communicates with the flow channel.

In one embodiment, the heating device further includes a first driver communicatively connected to the control device, the first driver is provided with a telescopic end, the telescopic end is fixedly connected with the support base, and the support base can move relative to the positioning column.

In one embodiment, the transfer device includes a compression sleeve, the compression sleeve is detachably inserted into the positioning column, and when the compression sleeve is inserted into the positioning column, the compression sleeve and the support portion form a compression structure.

In one embodiment, the heating device further includes a base, a pressing member and a limiting member, the base is provided with a protruding positioning column, the pressing member is movably or detachably arranged above the base, and cooperates with the base to form a fit A positioning column is inserted in the matching cavity, and the side wall of the matching cavity cooperates with the positioning column to form an annular accommodating groove. There is a first pressing body which cooperates with the positioning column to form a pressing structure; the heating unit is provided with a heating cavity.

In one embodiment, there are at least two limiting members, and the first pressing bodies of two adjacent limiting members cooperate with the positioning posts in two mutually perpendicular directions.

In one embodiment, the transfer device includes a multi-axis robot, the multi-axis robot is communicatively connected with the control device, and is used for driving the movement of the pressing member and the limiter and for transferring the base to the heating chamber.

Description of drawings

1 is a schematic structural diagram of a voice coil manufacturing system in an embodiment;

FIG. 2 is a schematic front view of the voice coil manufacturing system shown in FIG. 1;

3 is a schematic structural diagram of a heating device in an embodiment;

4 is a schematic front view of the heating device shown in FIG. 3;

Fig. 5 is the sectional schematic diagram of A-A in Fig. 4;

6 is a schematic top view of the heating device shown in FIG. 3;

Fig. 7 is the sectional schematic diagram of B-B shown in Fig. 6;

8 is a schematic structural diagram of an auxiliary unit in an embodiment;

9 is a schematic side view of the auxiliary unit shown in FIG. 8;

Fig. 10 is the C-C sectional schematic diagram shown in Fig. 9;

FIG. 11 is a schematic top view of the auxiliary unit shown in FIG. 8;

Fig. 12 is the D-D cross-sectional enlarged schematic diagram shown in Fig. 11;

FIG. 13 is a schematic exploded view of the structure of the auxiliary unit shown in FIG. 8 .

Description of reference numbers:

10, winding machine; 20, heating device; 30, transfer device; 32, voice coil pick and place manipulator; 100, positioning column; 110, flow channel; 120, first air outlet; 200, heating unit; 210, hot air end; 220, air duct; 300, coil; 400, support seat; 410, convex body; 412, sliding hole; 420, support part; 500, first driver; 510, telescopic end; 600, installation unit; 610, Slide rail; 700, base; 710, matching cavity; 712, accommodating groove; 720, slot; 730, second vent hole; 800, pressing member; 810, second pressing body; 820, first vent hole; 900 910, the first pressing body; 920, the driving body; 930, the third vent hole.

Brief description of the drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Embodiments of the present invention

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and do not limit the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a method for manufacturing a voice coil is provided, comprising the following steps:

winding metal wires into coils;

Then put the coils one by one into the positioning column;

On the basis of the above embodiment, in one embodiment, the metal wire is wound into a coil by a winding machine, and after the coil on the winding machine is taken out, the winding machine continues to wind the next coil. In this way, the winding machine can be fully used to wind the coil, and it can work in parallel with the heating device to improve the production efficiency of the voice coil as much as possible.

Based on any of the above embodiments, in an embodiment, when the number of coils on the positioning column reaches a preset number, the method further includes: pressing the preset number of coils, and then heating the preset number of coils. In this way, the pre-set number of coils can be fitted more closely through the pressing force, and then heated and bonded to form a voice coil, so that the spacing between the coils of different batches of voice coils is consistent, which is beneficial to ensure that different batches of voice coils have the same spacing. The consistency of the quality of the voice coil.

Based on the above method, an oven can be used to heat the coils, and a pressing force is used to maintain the distance between the coils during the heating process.

Or in one embodiment, after heating the preset number of coils, the method further includes: pressing the preset number of coils, so that the preset number of coils are bonded and fixed to form a voice coil. In this way, it is also possible to heat first, and then use the pressing force to make the preset number of coils fit more closely, and then cool and bond them to form a voice coil, so that the spacing between the coils of different batches of voice coils is consistent. , which is conducive to ensuring the consistency of the quality of different batches of voice coils.

Based on the above method, ventilation and heating can be used to heat the coils. After heating, the pressing force is used to ensure that the distance between the coils is within the error range during the bonding process, which is beneficial to improve the consistency of quality in the repeated production process of the voice coil. sex.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , in one embodiment, a voice coil manufacturing system is also provided, including a winding machine 10 , a heating device 20 , a transfer device 30 and a control device. The winding machine 10 is used for For winding the coil 300, the heating device 20 includes a positioning column 100 and a heating unit 200 for heating the coil 300. The transfer device 30 is used for transferring the coil 300 on the winding machine 10 to the positioning column 100. The control device and the winding The machine 10, the heating unit 200, and the transfer device 30 are connected in communication, and are used for executing the above-mentioned voice coil manufacturing method.

When the above voice coil manufacturing system is used, the wire winding machine 10 is used to wind the metal wire into the coil 300, and then the coil 300 wound on the winding machine 10 is inserted into the positioning post 100 through the transfer device 30; When the number of coils 300 on the upper reaches a preset number, the heating unit 200 is used to heat the preset number of coils 300, so that the preset number of coils 300 are bonded and fixed to form a voice coil. In this process, the winding process and the heating process are carried out separately, and different numbers of winding machines 10 and heating devices 20 can be matched according to the time required to complete the two processes. In this way, the serial winding and heating and bonding processes can be changed. For parallel processes, the production cycle can be shortened, which is beneficial to improve the production efficiency of the voice coil.

It should be noted that the "winding machine 10" can be implemented by any existing equipment that can meet the requirements.

It should be noted that the "heating unit 200" includes, but is not limited to, an oven, a heating air duct, a heating air duct, and the like.

It should be noted that the "transfer device 30" includes, but is not limited to, a multi-axis robot, a plurality of conveying mechanisms + a clamping mechanism, a three-dimensional motion mechanism + a clamping mechanism, and the like. The moving range of the “transfer device 30 ” can be set according to the position between the aforementioned winding machine 10 and the heating device 20 .

Specifically in this embodiment, the clamping structure is a voice coil pick-and-place manipulator 32 , and the voice coil grabbing manipulator can be implemented by any existing technology that meets the usage requirements.

It should be noted that the communication control means between the control device and each actuator (eg, the winding machine 10 , the heating unit 200 , and the transfer device 30 ) belong to the prior art, and will not be repeated here. The "communication connection" can be realized by using a wired communication technology or a wireless communication technology, which belongs to the prior art and will not be repeated here. Furthermore, the communication connection between the above-mentioned devices may be a direct communication connection. It can also be an indirect communication connection.

The control device can be a programmable controller, a motion control card, a computer and other control elements.

On the basis of any of the above embodiments, as shown in FIGS. 3 to 5 , in one embodiment, the positioning column 100 is provided with a flow channel 110 and a plurality of first air outlet holes 120 spaced along the outer side of the positioning column 100 . The first air outlet 120 is communicated with the flow channel 110 ; the heating device 20 includes a support seat 400 , the support seat 400 is provided with a convex body 410 , and the convex body 410 is arranged below the first air outlet hole 120 for forming a support portion for supporting the coil 300 420 ; the heating unit 200 is provided with a hot air outlet end 210 , and the hot air outlet end 210 communicates with the flow channel 110 .

When the above-mentioned heating device 20 is in use, the hot air generated by the heating unit 200 directly acts on the positioning column 100 through the flow channel 110 , which can fully utilize thermal energy to heat the positioning column 100 , reduce heat loss and improve heat utilization. Specifically, when the double coil 300 needs to be glued and fixed, the first coil 300 is inserted into the positioning column 100 and supported by the support portion 420 , and then the second coil 300 is inserted into the positioning column 100 Then, the heating gas is introduced into the positioning column 100 through the flow channel 110, and flows out through the first air outlet 120. During this process, the positioning column 100, the first coil 300 and the second coil 300 can be heated; The first coil 300 and the second coil 300 are tightly connected, so that the first coil 300 and the second coil 300 are glued and fixed to form a voice coil. In this process, the use of the heating device 20 can reduce heat loss and improve the heat utilization rate; at the same time, it is understandable that the hot air is passed into the flow channel 110 of the positioning column 100, so that the positioning column 100 can be heated evenly, so there is no need to rotate the positioning column 100, The heating structure can be simplified, which is beneficial to cost reduction.

The heating unit 200 can be implemented by any existing equipment that meets the requirements of the apparatus of the present invention.

The hot air outlet end 210 may communicate with the flow channel 110 directly or indirectly. Specifically in this embodiment, the hot air outlet end 210 communicates with the flow channel 110 through the air guide pipe 220 .

It should be noted that the specific shape of the "circle shape" includes, but is not limited to, a circle, an ellipse, a polygon, and the like. That is, the specific shape of the positioning column 100 includes, but is not limited to, a cylinder, an elliptical column, a polygonal column and the like.

On the basis of any of the above embodiments, as shown in FIG. 4 and FIG. 5 , in one embodiment, all the first air outlet holes 120 are evenly spaced along the same circle. In this way, the uniform arrangement of the first air outlet holes 120 enables the gas flowing out of the flow channel 110 into the first air outlet hole 120 to flow evenly in the flow channel 110 , which is beneficial to the positioning post 100 and the coil 300 on the positioning post 100 Heat evenly.

On the basis of any of the above embodiments, in one embodiment, the positioning post 100 further includes at least one group of second air outlets (not shown) spaced along the length direction of the positioning post 100 , and the second air outlets in the same group There are a plurality of them and are arranged along the same circular interval, and the second air outlet holes communicate with the flow channel 110 . In this way, at least two groups of air outlets can be provided in the length direction of the positioning column 100 as required, so that the air outlets can be flexibly designed to obtain the desired heating effect.

On the basis of any of the above embodiments, as shown in FIG. 3 to FIG. 5 and FIG. 7 , in one embodiment, the heating device 20 further includes a first driver 500 communicatively connected to the control device, and the first driver 500 is provided with a telescopic The telescopic end 510 is fixedly connected with the support base 400 , and the support base 400 can move relative to the positioning column 100 . In this way, the control device is used to control the first driver 500 , so that the first driver 500 can drive the support base 400 to move relative to the positioning column 100 , so that the position of the support portion 420 can be adjusted, and then the support portion 420 can be adjusted according to different thicknesses of the coil 300 . s position. At the same time, after the voice coil is manufactured, the first driver 500 can be used to drive the support portion 420 to move, and the voice coil can be pushed out of the positioning post 100 .

It should be noted that the "first drive 500" includes, but is not limited to, telescopic rods, telescopic plates, telescopic rods, pneumatic rods, hydraulic rods, linear motors, and other power equipment that directly provides telescopic power, and also includes the use of rack and pinion mechanisms + motors , screw nut mechanism + motor and other devices that indirectly provide telescopic power to realize the reciprocating movement of the support base 400 .

On the basis of any of the above embodiments, as shown in FIG. 5 and FIG. 7 , in one embodiment, the protruding body 410 is provided with a sliding hole 412 , and the sliding hole 412 is slidably matched with the positioning post 100 , so that the support base 400 can be relatively The positioning post 100 moves. In this way, the protruding body 410 is sleeved on the positioning column 100 through the sliding hole 412, and is slidably connected with the positioning column 100, thereby realizing the sliding connection between the support base 400 and the heating element.

On the basis of any of the above embodiments, as shown in FIG. 3 to FIG. 5 , in one embodiment, the heating device 20 further includes an installation unit 600 , the support base 400 is slidably connected to the installation unit 600 , and the first driver 500 is installed in the On the installation unit 600, the heating element is fixed on the installation unit 600, so that the positioning column 100 is protruded. In this way, the mounting unit 600 can be used to integrate the support base 400 with the heating element, and the mounting unit 600 can be slidably connected with the support base 400 , so that the movement of the support base 400 is more stable, so that the moving direction of the center line of the convex body 410 is the same as The centerlines of the positioning posts 100 are coincident, which is beneficial to ensure that the structure of the coil 300 is not damaged.

Further, as shown in FIGS. 4 and 7 , in one embodiment, the installation unit 600 includes at least two sliding rails 610 arranged at intervals, and the at least two sliding rails 610 are slidably connected to the support base 400 . In this way, using at least two sliding rails 610 to be slidably connected to the support base 400 is beneficial to further ensure that the moving direction of the center line of the convex body 410 coincides with the center line of the positioning column 100, so that the convex body 410 pushes out the finished voice coil During the process, the structure of the coil 300 will not be damaged.

It should be noted that the "installation unit 600" may be any installation structure that can realize the installation of the above-mentioned components, such as a mounting bracket, a mounting seat, and a mounting shell.

On the basis of the above embodiments, in one embodiment, the transfer device 30 includes a pressing sleeve, the pressing sleeve is detachably inserted into the positioning post 100 , and when the pressing sleeve is inserted into the positioning post 100 , the pressing sleeve and the supporting portion 420 Form a compacted structure. In this way, the positioning post 100 is inserted through the pressing sleeve, and forms a pressing structure for pressing the first coil 300 and the second coil 300 together with the support portion 420 . After the voice coil is formed, the compression sleeve can be removed from the positioning post 100 . The manufactured voice coil can be ejected from the positioning post 100 in combination with the aforementioned movable convex body 410 .

As shown in FIGS. 8 to 10 , in another embodiment of the heating device 20 , the heating device 20 further includes a base 700 , a pressing member 800 and a limiting member 900 . The base 700 is provided with a protruding positioning column 100 for pressing The firmware 800 is movably or detachably disposed above the base 700 and cooperates with the base 700 to form a matching cavity 710 . The positioning column 100 is inserted in the matching cavity 710 , and the side wall of the matching cavity 710 cooperates with the positioning column 100 to form a matching cavity 710 . In the annular accommodating groove 712, the limiting member 900 is movably or detachably disposed between the pressing member 800 and the base 700, and the limiting member 900 is provided with a first pressing body 910 which cooperates with the positioning post 100 to form a pressing structure. ; The heating unit 200 is provided with a heating chamber.

When the above-mentioned heating device 20 is used, the prepared coils 300 are set into the positioning column 100 one by one according to the preset number of coils 300, and then the fastener 800 is used to cooperate with the base 700, so that the preset number of coils 300 is arranged in the receiving slot. In step 712 , the first pressing body 910 of the limiting member 900 and the positioning column 100 are finally used to form a pressing structure against the limiting coil 300 , and then a predetermined number of coils 300 are positioned and fixed on the auxiliary unit reliably. Then, a preset number of coils 300 are put into the heating cavity in the heating unit 200 together with the auxiliary unit for heating, so that the preset number of coils 300 are glued and fixed to obtain a voice coil. The heating device 20 utilizes the auxiliary unit, and can heat the coil 300 with reliable positioning, so that the coil 300 in the auxiliary unit can be bonded and fixed into a voice coil; there is no need to use the winding machine 10 to bond and fix the coil 300, The coil 300 can be made by fully utilizing the winding machine 10 .

It should be noted that "the pressing member 800 is movably or detachably arranged above the base 700" includes that the "pressing member 800" can be slidably or rotatably arranged above the "base 700" in a movable manner, so that the matching cavity is 710 can be opened so that the coil 300 can be sleeved on the positioning post 100; and then slide or rotate, so that the coil 300 is set in the matching cavity 710; also includes the "pressing member 800" which can be directly removed from the top of the base 700 , so that the matching cavity 710120 can be opened, so that the coil 300 can be set on the positioning post 100 ;

The above-mentioned specific implementation of the sliding, rotating or detachable "pressing member 800" and "base 700" may adopt any prior art that meets the requirements for realizing the connection of the two components, and will not be repeated here.

In addition, when the pressing member 800 needs to provide pressure, a heavy object, a compression elastic member, a magnetic thrust, etc. can be applied on the pressing member 800 .

Equivalently, "the limiter 900 is movably or detachably disposed between the pressing member 800 and the base 700" includes the "limiting member 900" being slidably, rotatably and other movable means disposed between the "pressing member 800 and the base 700" between”, so that the first pressing body 910 is away from the positioning post 100 to open the pressing structure, so that the coil 300 can be sleeved on the positioning post 100; and then the first pressing body 910 is close to the positioning post 100 to form the pressing structure ; It also includes that the "limiting member 900" can be directly disassembled from the top of the base 700, so that the pressing structure can be opened, so that the coil 300 can be set on the positioning column 100; then the "limiting member 900" is installed back, so that the first pressing body 910 is close to the positioning post 100 to form a pressing structure.

In addition, when the limiter 900 needs to provide movement, a linear motor, a hydraulic cylinder, a pneumatic cylinder, a servo motor + a rack and pinion mechanism, a nut screw mechanism, etc. can be used.

It should be noted that the specific implementation method of "the pressing member 800 cooperates with the base 700 to form the matching cavity 710" includes: the base 700 is provided with a first groove, and then the base 700 is matched with the pressing member 800, so that the first groove forms a matching cavity 710; alternatively, the pressing member 800 is provided with a first groove, and then the base 700 is matched with the pressing member 800, so that the first groove forms a matching cavity 710; alternatively, both the base 700 and the pressing member 800 are provided with a first groove , and then the base 700 is matched with the pressing member 800 , so that the two first grooves correspond to form a fitting cavity 710 .

On the basis of the other embodiment of the heating device 20 described above, as shown in FIG. 9 to FIG. 12 , in one embodiment, the pressing member 800 is further provided with a second pressing body 810 , and the second pressing body 810 is arranged in the accommodating body 810 . The upper part of the groove 712 cooperates with the bottom wall of the receiving groove 712 to form a second pressing structure. In this way, after a preset number of coils 300 (greater than or equal to two coils 300 ) are sleeved on the positioning post 100 , the fastener 800 is placed above the base 700 , and the preset number of coils 300 is placed in the accommodating slot 712 At the same time, the second pressing body 810 cooperates with the bottom wall of the accommodating slot 712 to form a second pressing structure to press the preset number of coils 300, so that the coils 300 are closely attached, and it is convenient for the preset number of coils 300 bonding and pressing is a reliable voice coil, which is conducive to ensuring the quality of the voice coil.

On the basis of any of the other embodiments of the heating device 20 described above, as shown in FIG. 9 to FIG. 12 , in one embodiment, a slot 720 is provided between the base 700 and the pressing member 800 , and the slot 720 and the accommodating slot are 712 communicates with each other, and the slot 720 is inserted and matched with the first pressing body 910 . In this way, using the slot 720 and the first abutting body 910 to insert and cooperate, the limiting member 900 can be detachably disposed between the base 700 and the pressing member 800 , which is easy to implement and easy to disassemble.

It should be noted that the specific implementation of "the slot 720 is provided between the base 700 and the pressing member 800" includes: the base 700 is provided with a second groove, and then the base 700 is matched with the pressing member 800, so that the second groove is formed slot 720; alternatively, the pressing member 800 is provided with a second groove, and then the base 700 is matched with the pressing member 800 so that the second groove forms the slot 720; alternatively, both the base 700 and the pressing member 800 are provided with a second groove Then, the base 700 is matched with the pressing member 800 so that the two second grooves correspond to form a fitting cavity 710 .

On the basis of any of the other embodiments of the heating device 20 described above, as shown in FIG. 8 , FIG. 11 and FIG. 13 , in one embodiment, there are at least two limiting members 900 , and two adjacent limiting members The first pressing body 910 of the 900 cooperates with the positioning post 100 in two mutually perpendicular directions. In this way, the coil 300 can be limited in the X direction and the Y direction by using the two limiting members 900 , and the coil 300 can be compressed in the Z direction by the pressing member 800 . In this way, the preset number of coils 300 can be glued and fixed in the process , there will be no offset between the coils 300, which is conducive to ensuring the quality of the voice coil and improving the yield of the voice coil manufacturing.

Optionally, as shown in FIG. 13 , in one embodiment, the base 700 or/and the fastener 800 is provided with a first vent hole 820 that communicates with the matching cavity 710 . In this way, the first vent hole 820 can be provided on the base 700 or the pressing member 800 or the base 700 and the pressing member 800, which is conducive to the rapid heating inside the auxiliary unit when the auxiliary unit is heated, and the fixing speed of the voice coil is accelerated, which is conducive to improving the Productivity of Voice Coil Manufacturing.

Or in one embodiment, the base 700 or/and the pressing member 800 is provided with a second ventilation hole 730 . In this way, the second vent hole 730 can be provided on the base 700 or the pressing member 800 or the base 700 and the pressing member 800, which is conducive to the rapid heating of the interior of the auxiliary unit when the auxiliary unit is heated, and the fixing speed of the voice coil is accelerated, which is conducive to improving the performance of the auxiliary unit. Productivity of Voice Coil Manufacturing.

In one embodiment, the base 700 and the pressing member 800 are provided with a first ventilation hole 820 communicating with the mating cavity 710 ; and the base 700 or/and the pressing member 800 are provided with a second ventilation hole 730 . In this way, by providing the first vent hole 820 on the base 700 or the pressing member 800 or the base 700 and the pressing member 800, and by providing the second vent hole 730 on the base 700 or the pressing member 800 or the base 700 and the pressing member 800, When the auxiliary unit is heated, the conduction of heat is further accelerated, so that the inside of the auxiliary unit is heated up rapidly, the fixing speed of the voice coil is accelerated, and the production efficiency of the voice coil manufacturing is improved.

Of course, in other embodiments, as shown in FIG. 13 , a third ventilation hole 930 may also be provided in the limiting member 900 ; or on the basis of the aforementioned “first through hole” or/and “second through hole” On the top, the limiting member 900 is provided with a third ventilation hole 930 . In this way, the third ventilation can also be used to increase the heating speed inside the radiation unit, speed up the fixing speed of the voice coil, and help improve the production efficiency of the voice coil manufacturing.

On the basis of any of the other embodiments of the heating device 20 described above, as shown in FIG. 10 and FIG. 12 , in one embodiment, the positioning column 100 is slidably disposed on the base 700 . In this way, after the voice coil is manufactured, the voice coil can be pushed out by moving the positioning post 100 .

On the basis of any of the other embodiments of the heating device 20 described above, in one embodiment, a positioning structure (not shown) is provided between the base 700 and the pressing member 800 . In this way, the base 700 and the pressing member 800 can be quickly aligned by using the positioning structure, so that the coil 300 can be easily placed in the matching cavity 710 .

The positioning structure can be realized by using the positioning column 100 to cooperate with the positioning hole.

On the basis of any of the other embodiments of the heating device 20 described above, in one embodiment, the transfer device 30 includes a multi-axis robot (not shown), and the multi-axis robot is communicatively connected to the control device for driving the pressing member 800 and the control device. The limiter 900 moves and the multi-axis robot for transferring the base 700 to the heating chamber. In this way, the multi-axis robot is used to realize the movement of the first abutting body 910, so that the first abutting body 910 and the positioning column 100 are pressed against each other or cancel the pressing force; at the same time, the base 700 can be transferred to the heating unit 200 by using the multi-axis robot Heating is carried out to further improve the automation degree of the present invention.

It should be noted that, in the above method or device, the coil is obtained by winding a metal wire coated with glue, so the bonding between the coils may not be glued, and the voice coil can be fixed by direct heating.

It should be noted that the "protruding body" can be a "part of the support seat", that is, the "protruding body" and the "other parts of the support seat" are integrally formed; it can also be separated from the "other parts of the support seat". The separate components, the "protrusions", can be manufactured independently and then combined with "the rest of the support base" as a whole.

Equivalently, "a certain body" and "a certain part" can be a part of the corresponding "component", that is, "a certain body", "a certain part" and the "other part of the component" are integrally formed; Part" is an independent component that can be separated, that is, "a body" and "a part" can be manufactured independently, and then combined with "other parts of the component" to form a whole. The expression of the above-mentioned "some body" and "a certain part" in the present invention is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the present invention, as long as the above features are included and the functions are the same, it should be understood as Equivalent technical solutions of the present invention.

It should be noted that the "positioning column" can be one of the parts of the "heating device" module, that is, it can be assembled modularly with "other components of the heating device"; it can also be relatively independent from the "other components of the heating device". , can be separated, that is, it can be modularly assembled with "other components of the heating device" in the present invention.

Equivalently, the components included in the "unit", "component", "mechanism" and "device" of the present invention can also be combined flexibly, that is, modular production can be carried out according to actual needs, so as to facilitate modular assembly. The division of the above-mentioned components in the present invention is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the present invention, as long as the above-mentioned components are included and have the same function, it should be understood as an equivalent technical solution of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed on", "disposed on", "fixed on" or "mounted on" another element, it can be directly on the other element or an intervening element may also be present . When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered to be a "fixed transmission connection" to another element, the two can be fixed in a detachable connection, or can be fixed in a non-detachable connection, as long as power transmission can be achieved, such as socket connection, snap connection. , integral molding fixing, welding, etc., can be realized in the prior art, and will not be redundant here. When a component and another component are perpendicular or approximately perpendicular to each other, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features It is considered to be the range described in this specification.

The above examples only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A method for making a voice coil, comprising the steps of:

winding metal wires into coils;

Then put the coils one by one into the positioning column;

When the number of coils on the positioning post reaches a preset number, the preset number of coils is heated, so that the preset number of coils are bonded and fixed to form a voice coil.
The method for manufacturing a voice coil according to claim 1, wherein the metal wire is wound into a coil by a winding machine, and after the coil on the winding machine is taken out, the winding machine proceeds to the next coil of winding.
The voice coil manufacturing method according to claim 1 or 2, wherein when the number of coils on the positioning post reaches a preset number, the method further comprises: compressing the preset number of coils, and then performing the operation on the preset number of coils. heating;

Or after heating the preset number of coils, the method further includes: pressing the preset number of coils, so that the preset number of coils are bonded and fixed to form a voice coil.
A voice coil manufacturing system, comprising:

a winding machine for winding coils;

a heating device, the heating device includes a positioning column, and a heating unit for heating the coil;

a transfer device for transferring the coils on the winding machine into positioning posts; and

A control device, the control device is connected in communication with the winding machine, the heating unit and the transfer device, and is used for executing the voice coil manufacturing method according to any one of claims 1 to 3.
The voice coil manufacturing system according to claim 4, wherein the positioning column is provided with a flow channel and a plurality of first air outlet holes spaced along the outer side of the positioning column, the first air outlet holes and the flow The heating device includes a support seat, the support seat is provided with a convex body, and the convex body is arranged below the first air outlet to form a support part for supporting the coil; the heating unit A hot air outlet end is provided, and the hot air outlet end communicates with the flow channel.
The voice coil manufacturing system according to claim 5, wherein the heating device further comprises a first driver connected in communication with the control device, the first driver is provided with a telescopic end, and the telescopic end is connected to the control device. The support base is fixedly connected, and the support base can move relative to the positioning column.
The voice coil manufacturing system according to claim 5 or 6, wherein the transfer device comprises a compression sleeve, the compression sleeve is detachably inserted into the positioning post, and the compression sleeve is inserted into the When positioned in the column, the pressing sleeve and the supporting portion form a pressing structure.
The voice coil manufacturing system according to claim 4, wherein the heating device further comprises a base, a pressing member and a limiting member, the base is provided with a protruding positioning column, and the pressing member is movable or It is detachably arranged above the base, and cooperates with the base to form a matching cavity, the positioning column is inserted in the matching cavity, and the side wall of the matching cavity cooperates with the positioning column to form a matching cavity. An annular accommodating groove, the limiting member is movably or detachably arranged between the pressing member and the base, and the limiting member is provided with a first member that cooperates with the positioning column to form a pressing structure a pressing body; the heating unit is provided with a heating cavity.
The voice coil manufacturing system according to claim 8, wherein there are at least two limiting members, and the first pressing bodies of two adjacent limiting members are in two mutually perpendicular directions with each other. The positioning posts are matched.
The voice coil manufacturing system according to claim 8 or 9, wherein the transfer device comprises a multi-axis robot, and the multi-axis robot is communicatively connected to the control device for driving the compression member and the control device. Limit movement and a multi-axis robot for transferring the base to the heating chamber.