CN211429509U - Earphone sound membrane assembly tool - Google Patents

Abstract

The utility model discloses an earphone sound membrane assembly jig, including tool body and the activity tool of range upon range of setting from top to bottom, be provided with the circular card hole that supplies the earphone sound membrane to put into on the tool body vertically through, the internal diameter in circular card hole and the diameter phase-match of earphone sound membrane; the movable jig is provided with a core column matched with the circular clamping hole, and the diameter of the core column is matched with the inner diameter of the circular clamping hole; the middle part of the end face of the core column is concavely provided with a containing cavity for containing a diaphragm of the sound film of the earphone, so that the edge of the containing cavity forms an annular supporting ring, and the inner diameter of the supporting ring is consistent with that of a copper ring on the sound film of the earphone; the height of the core column is larger than the length of the circular clamping hole, so that when the movable jig is attached to the jig body, the end part of the core column can penetrate out of the circular clamping hole. The utility model has the advantages of structural design is ingenious, operation convenient to use can avoid the damage of sound membrane, is favorable to improving assembly qualification rate.

Description

Earphone sound membrane assembly tool

Technical Field

The utility model relates to an earphone loudspeaker assembly technical field, very much relate to an earphone sound membrane assembly tool.

Background

The earphone is used for converting received electric signals through the loudspeaker unit to generate sound, the earphone loudspeaker mainly comprises a sound film, a voice coil (namely a copper coil) and a sound film support, the sound film support comprises an iron basin which is integrally disc-shaped, the middle part of the iron basin is sunken downwards and is provided with a magnet, and the back of the sunken part is provided with a circuit board; during assembly, as shown in fig. 1, the voice diaphragm 2 and the voice coil 1 are coaxially and correspondingly bonded to obtain a coil-diaphragm assembly, and meanwhile, a lead of the voice coil 1 is led to a copper ring 21 along a diaphragm 22 of the voice diaphragm 2 to be bonded and led out; then the side of the voice coil 1 of the ring-membrane assembly is buckled towards the side of the magnet on the sound membrane bracket, and then the copper ring 21 of the sound membrane on the ring-membrane assembly is arranged on the iron basin of the sound membrane bracket; as shown in fig. 2, the wire of the voice coil is led out from the notch of the iron basin and is welded on the circuit board of the earphone bracket, so that the initial assembly of the earphone speaker can be completed. The concrete assembling method is as described in the Chinese invention patent with the publication number of CN110708628A, the sound film fixture with the ring film assembly is covered on the support fixture with the sound film support, the copper ring 21 of the sound film on the ring film assembly is adhered and fixed on the sound film support by applying glue on the iron basin of the sound film support, the copper ring 21 is fixed by the glue, and during assembling, the copper ring 21 of the sound film on the ring film assembly is only adhered to the surface of the iron disc of the sound film support.

However, in the conventional diaphragm support, as shown in fig. 3, the rim of the iron basin extends axially to form a side wall, the diameter of the side wall is consistent with the diameter of the copper ring 21 on the diaphragm, and during assembly, the copper ring 21 of the diaphragm on the ring diaphragm assembly needs to be pushed into the bottom of the side wall and attached to the iron basin. The sound film is the most important part for the speaker unit to sound, and once the diaphragm is slightly deformed in the assembling process, the sound quality of the earphone is greatly influenced, so that the problem to be solved is solved if the sound film is safely and reliably assembled to the bottom of the side wall of the support.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a structural design ingenious, operation convenient to use can avoid the damage of sound membrane, is favorable to improving the earphone sound membrane assembly tool of assembly qualification rate.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the jig is characterized by comprising a jig body and a movable jig which are vertically stacked, wherein a circular clamping hole for placing an earphone sound film is vertically arranged on the jig body in a penetrating manner, and the inner diameter of the circular clamping hole is matched with the diameter of the earphone sound film, so that the earphone sound film can be coaxially clamped into the circular clamping hole; the movable jig is provided with a core column matched with the circular clamping hole, and the diameter of the core column is matched with the inner diameter of the circular clamping hole, so that the core column can coaxially move along the circular clamping hole; the middle part of the end face of the core column is concavely provided with a containing cavity for containing a diaphragm of the sound film of the earphone, so that the edge of the containing cavity forms an annular supporting ring, and the inner diameter of the supporting ring is consistent with that of a copper ring on the sound film of the earphone; the height of the core column is greater than the length of the circular clamping hole, so that when the movable jig is attached to the jig body, the end part of the core column can penetrate out of the circular clamping hole; a compressible reset mechanism is further arranged between the movable jig and the jig body, so that the movable jig and the jig body are in a spaced state, and the end part of the core column is positioned in the circular clamping hole in a shrinkage mode.

Because the terminal surface of stem has the chamber that holds the diaphragm, and the support ring is unanimous with the size of the last copper ring of earphone sound membrane, and the diameter in diameter and the circular card hole of stem all is unanimous with the diameter of earphone sound membrane, all is unanimous with the copper ring diameter of earphone sound membrane promptly for when the stem is pushed the earphone sound membrane along the axial, only the support ring contacts with the copper ring of earphone sound membrane, thereby can avoid the stem to cause the damage to the diaphragm of earphone sound membrane. During operation, the movable jig is pushed out only by covering the sound film support coaxially through the jig on the circular clamping hole, so that the end part of the core column penetrates out of the circular clamping hole. The structure has ingenious design and convenient operation and use.

Furthermore, still have a plurality of edges on the tool body the hole of stepping down that the circumference equipartition of circular card hole set up, the hole of stepping down follows the axial through setting in circular card hole, the hole of stepping down with the wheel base in circular card hole is less than the sum of the radius of the two.

Because the wheel base of the hole of stepping down and the circular card hole is smaller than the sum of the radius of the hole of stepping down and the radius of the circular card hole, namely the edge of the hole of stepping down and the edge of the circular card hole are crossed, the hole wall of the circular card hole is provided with uniformly distributed notches, therefore, in the process of clamping the earphone sound film into the circular card hole, when a copper ring of the earphone sound film is clamped and extruded by the side wall of the circular card hole, the notches on the circular card hole can be slightly deformed, and the earphone sound film can be clamped into the circular card hole more easily.

Furthermore, one side of the jig body, which is far away from the movable jig, is provided with a recess-formed abdicating groove, and the abdicating groove is communicated with the abdicating hole on the jig body, which is close to the outer side, and extends to the outer side of the jig body; the support ring of stem has on with hold the breach that the chamber intercommunication set up, the breach is located be close to the outside on the tool body the hole position department of stepping down.

Because earphone voice coil loudspeaker voice coil assembly back, the wire of earphone voice coil loudspeaker voice coil needs to be fixed on the copper ring of earphone voice coil loudspeaker voice coil through glue, sets up the breach on the support ring, and the wire of the earphone voice coil loudspeaker voice coil of being convenient for passes through and beats gluey fixed.

Furthermore, the shape of the accommodating cavity is matched with the shape of the membrane of the sound film of the earphone, so that the sound film of the earphone can be placed on the accommodating cavity in a fitting manner.

Because the earphone sound membrane can be placed on holding the chamber with laminating for when earphone sound membrane and earphone voice coil loudspeaker voice coil lock assemble, hold the diaphragm that the chamber can support the earphone sound membrane, avoid the earphone voice coil loudspeaker voice coil to extrude the diaphragm of earphone sound membrane and cause the deformation, thereby improve the qualification rate of assembly.

Furthermore, the middle part of the core column is provided with an air hole which is arranged along the axial direction in a through mode.

Therefore, when the core column pushes the earphone sound film, the phenomenon that air pressure formed between the earphone sound film and the accommodating cavity causes the diaphragm of the earphone sound film to deform can be avoided, and the qualification rate of assembly is guaranteed.

Furthermore, the reset mechanism comprises a plurality of first magnets arranged along the edge of the jig body and a plurality of second magnets arranged along the edge of the movable jig, wherein the second magnets correspond to the first magnets one to one, and the magnetic poles of the second magnets and the first magnets which correspond to each other are oppositely arranged in a repelling manner.

Like this, through the magnetic pole repulsion between first magnet and the second magnet, can make tool body and activity tool be in the state of mutual spaced, can also make activity tool under the exogenic action, can laminate with the tool body, make the stem wear out circular card hole, and when losing external force, the repulsion between first magnet and the second magnet can make tool body and activity tool resume the spaced state.

Furthermore, a limiting block is further installed on the jig body, and the movable jig can be arranged between the limiting block and the jig body along the axial movement of the core column.

Furthermore, one side of the jig body facing the movable jig is provided with a limiting cavity with the same shape as the movable jig, the depth of the limiting cavity is greater than the thickness of the movable jig, and the movable jig is positioned in the limiting cavity; the limiting block is installed on the jig body through a bolt and covers the area where the limiting cavity is located.

Like this, will move about the tool restriction in spacing intracavity through the stopper, during the concrete implementation, have on tool body and the activity tool with the recess that the stopper corresponds the setting makes the surface of stopper and activity tool is less than the surface of tool body, or with the surface of tool body flushes.

Furthermore, the jig body or/and the movable jig are/is provided with vent holes which are vertically arranged in a penetrating way.

Furthermore, the jig body and the movable jig are both strip-shaped, and a plurality of circular clamping holes are uniformly distributed along the length direction of the jig body; the two ends of the jig body in the length direction are respectively provided with a positioning groove or a positioning column, and the cross sections of the two positioning grooves or the two positioning columns are different in shape.

To sum up, the utility model has the advantages of structural design is ingenious, operation convenient to use can avoid the damage of sound membrane, is favorable to improving assembly qualification rate.

Drawings

Fig. 1 is a schematic structural diagram of a sound membrane of an earphone.

Fig. 2 is a schematic view of an assembly structure of the earphone holder and the sound film of the earphone.

Fig. 3 is a schematic view of an earphone holder having a sidewall.

Fig. 4 is a schematic structural diagram of a sound membrane of the earphone.

Fig. 5 is a schematic diagram of the exploded structure of fig. 4.

Fig. 6 is a schematic bottom view of fig. 4.

Fig. 7 is a schematic structural view of the upside-down loading jig.

Fig. 8 is a schematic structural view of the press-fit device.

Detailed Description

The present invention will be described in further detail with reference to examples.

In the specific implementation: as shown in figure 3, the edge of the iron basin of the sound membrane bracket extends axially to form a side wall, the diameter of the side wall is consistent with that of the copper ring 21 on the sound membrane, and during assembly, the copper ring 21 of the sound membrane on the ring membrane assembly needs to be pushed into the bottom of the side wall and attached to the iron basin.

Therefore, the present embodiment provides an earphone sound film assembling jig, as shown in fig. 4 to 6, which includes a jig body 401 and a movable jig 402 that are stacked up and down, wherein a circular clamping hole 403 for placing an earphone sound film is vertically through-arranged on the jig body 401, and the inner diameter of the circular clamping hole 403 is matched with the diameter of the earphone sound film, so that the earphone sound film can be coaxially clamped into the circular clamping hole 403; the movable fixture 402 is provided with a core column 404 which is matched with the circular clamping hole 403, and the diameter of the core column 404 is matched with the inner diameter of the circular clamping hole 403, so that the core column 404 can coaxially move along the circular clamping hole 403; the middle part of the end face of the core column 404 is concavely provided with a containing cavity for containing a diaphragm of the sound film of the earphone, so that the edge of the containing cavity forms an annular supporting ring, and the inner diameter of the supporting ring is consistent with the inner diameter of a copper ring on the sound film of the earphone; the height of the core column 404 is greater than the length of the circular clamping hole 403, so that when the movable jig 402 is attached to the jig body 401, the end of the core column 404 can penetrate through the circular clamping hole 403; a compressible reset mechanism is further disposed between the movable jig 402 and the jig body 401, so that the movable jig 402 and the jig body 401 are in a spaced state, and the end of the stem 404 is shrunk and located in the circular clamping hole 403.

Because the terminal surface of stem has the chamber that holds the diaphragm, and the support ring is unanimous with the size of the last copper ring of earphone sound membrane, and the diameter in diameter and the circular card hole of stem all is unanimous with the diameter of earphone sound membrane, all is unanimous with the copper ring diameter of earphone sound membrane promptly for when the stem is pushed the earphone sound membrane along the axial, only the support ring contacts with the copper ring of earphone sound membrane, thereby can avoid the stem to cause the damage to the diaphragm of earphone sound membrane. During operation, the movable jig is pushed out only by covering the sound film support coaxially through the jig on the circular clamping hole, so that the end part of the core column penetrates out of the circular clamping hole. The structure has ingenious design and convenient operation and use.

During implementation, still have 3 on the tool body 401 and follow the hole 405 of stepping down that circular calorie of circumference equipartition of hole 403 set up, the hole 405 of stepping down follows the axial through setting of circular calorie of hole 403, the hole 405 of stepping down with the wheel base of circular calorie of hole 403 is less than the sum of the radius of the two. Because the wheel base of the hole of stepping down and the circular card hole is smaller than the sum of the radius of the hole of stepping down and the radius of the circular card hole, namely the edge of the hole of stepping down and the edge of the circular card hole are crossed, the hole wall of the circular card hole is provided with uniformly distributed notches, therefore, in the process of clamping the earphone sound film into the circular card hole, when a copper ring of the earphone sound film is clamped and extruded by the side wall of the circular card hole, the notches on the circular card hole can be slightly deformed, and the earphone sound film can be clamped into the circular card hole more easily.

In implementation, one side of the jig body 401, which is away from the movable jig 402, is provided with a recessed abdicating groove 406, and the abdicating groove 406 is communicated with the abdicating hole 405 on the jig body 401, which is close to the outer side, and extends to the outer side of the jig body 401; the support ring of stem 404 is provided with a notch communicated with the accommodating cavity, and the notch is located on the jig body 401 and close to the outside and is located at the position of the abdicating hole 405. In this embodiment, the notch is formed by passing through the arc-shaped groove axially formed in the stem and the support ring.

Because earphone voice coil loudspeaker voice coil assembly back, the wire of earphone voice coil loudspeaker voice coil needs to be fixed on the copper ring of earphone voice coil loudspeaker voice coil through glue, sets up the breach on the support ring, and the wire of the earphone voice coil loudspeaker voice coil of being convenient for passes through and beats gluey fixed.

When the earphone sound film accommodating device is implemented, the shape of the accommodating cavity is matched with the shape of the diaphragm of the earphone sound film, so that the earphone sound film can be placed on the accommodating cavity in a fitting mode.

Because the earphone sound membrane can be placed on holding the chamber with laminating for when earphone sound membrane and earphone voice coil loudspeaker voice coil lock assemble, hold the diaphragm that the chamber can support the earphone sound membrane, avoid the earphone voice coil loudspeaker voice coil to extrude the diaphragm of earphone sound membrane and cause the deformation, thereby improve the qualification rate of assembly.

In practice, the stem 404 has a vent 407 axially extending through the middle thereof.

Therefore, when the core column pushes the earphone sound film, the phenomenon that air pressure formed between the earphone sound film and the accommodating cavity causes the diaphragm of the earphone sound film to deform can be avoided, and the qualification rate of assembly is guaranteed.

In implementation, the resetting mechanism includes a plurality of first magnets 408 arranged along the edge of the jig body 401, and a plurality of second magnets 409 arranged along the edge of the movable jig 402, wherein the second magnets 409 correspond to the first magnets 408 one by one, and the magnetic poles of the second magnets 409 and the first magnets 408 corresponding to each other are arranged oppositely in a repelling manner.

Like this, through the magnetic pole repulsion between first magnet and the second magnet, can make tool body and activity tool be in the state of mutual spaced, can also make activity tool under the exogenic action, can laminate with the tool body, make the stem wear out circular card hole, and when losing external force, the repulsion between first magnet and the second magnet can make tool body and activity tool resume the spaced state.

When the jig is implemented, the jig body 401 is further provided with a limiting block 410, and the movable jig 402 is axially movably arranged between the limiting block 410 and the jig body 401 along the core column 404.

In implementation, one side of the jig body 401, which faces the movable jig 402, is provided with a limiting cavity with a shape consistent with that of the movable jig 402, the depth of the limiting cavity is greater than the thickness of the movable jig 402, and the movable jig 402 is located in the limiting cavity; the limiting block 410 is mounted on the jig body 401 through bolts and covers the area where the limiting cavity is located.

Therefore, the movable jig is limited in the limiting cavity through the limiting block, and in specific implementation, the jig body 401 and the movable jig 402 are provided with grooves corresponding to the limiting block 410, so that the outer surfaces of the limiting block 410 and the movable jig 402 are lower than the outer surface of the jig body 401 or flush with the outer surface of the jig body 401.

When the jig is implemented, the jig body 401 or/and the movable jig 402 are provided with vent holes which are vertically arranged in a penetrating manner.

In this embodiment, the jig body 401 and the movable jig 402 are both strip-shaped, and 6 circular locking holes 403 are uniformly distributed along the length direction of the jig body 401; two ends of the jig body 401 in the length direction are respectively provided with a positioning groove or a positioning column, and the cross-sectional shapes of the two positioning grooves or the two positioning columns are different.

In addition, the present embodiment further provides a press-in assembly device for an earphone sound film for installing an earphone sound film into a sound film fixture, as shown in fig. 7 and 8, the press-in assembly device includes a base 601 and a press-fitting mechanism installed above the base 601 through a stand column, the press-fitting mechanism includes a first telescopic device 602 vertically installed on the stand column, a fixture fixing seat 603 is installed on a telescopic end of the first telescopic device 602, a feeding fixture 5 is vertically detachably installed on the fixture fixing seat 603, the feeding fixture 5 includes a feeding fixture body 501, a feeding hole 502 vertically penetrating through the feeding fixture body 501 is provided, an inner diameter of the feeding hole 502 is consistent with a diameter of the earphone sound film, and a clearance fit can be formed between the feeding hole and a copper ring of the earphone sound film; the bottom of the feeding hole 502 is provided with a blocking ring 503 which is coaxially arranged, the inner diameter of the blocking ring 503 is smaller than that of the feeding hole 502, and the blocking ring can be in detachable interference fit with a copper ring on a sound film of the earphone; a pressing block 504 capable of moving axially is further arranged in the feeding hole 502, the diameter of the pressing block 504 is consistent with the inner diameter of the feeding hole 502, a yielding cavity for accommodating a diaphragm on the sound film of the earphone is formed in the middle of the bottom surface in a concave mode, an annular pressing ring is formed at the edge of the yielding cavity, and the inner diameter of the pressing ring is larger than or equal to the inner diameter of a copper ring on the sound film of the earphone; the jig fixing seat 603 is further provided with a second telescopic device 604 corresponding to the feeding hole 502, and a telescopic end of the second telescopic device 604 is arranged opposite to the feeding hole 502 downwards along the axial direction of the feeding hole 502; the size of the telescopic end of the second telescopic device 604 is smaller than the diameter of the feeding hole 502, and the telescopic length is greater than the length of the feeding hole 502.

Adopt above-mentioned structure, just can will treat the earphone sound membrane range upon range of the material loading downthehole of putting into material loading tool body of assembly, owing to keep off and form interference fit between the copper ring on ring and the earphone sound membrane for the earphone sound membrane stops in the material loading is downthehole under the effect that keeps off the ring, but again with axial displacement's briquetting press on the earphone sound membrane in the material loading, the clamping ring on the briquetting is used in the copper ring of earphone sound membrane, avoids causing the damage to the diaphragm on the earphone sound membrane. Then the loading jig loaded with the earphone sound film is installed on the jig fixing seat. During assembly, the sound film jig for clamping the sound film of the earphone is placed on the base, the hole for clamping the sound film of the earphone is coaxially aligned with the feeding hole in the feeding jig, the telescopic end of the first telescopic device is utilized to drive the jig fixing seat to be integrally pressed downwards, the bottom of the jig body is contacted with the sound film jig, then the telescopic end of the second telescopic device is utilized to stretch out, the pressing block is pressed on the pressing block, the pressing block is contacted with the copper ring of the sound film of the earphone through the pressing ring, pressure is applied to the copper ring of the sound film of the earphone, due to the fact that the blocking ring can be in interference fit with the copper ring of the sound film of the earphone in a detachable mode, the sound film located at the bottommost can be extruded into the blocking ring under the action of pressure, and is finally extruded into the clamping hole in the sound film jig through the blocking ring, and feeding of the sound film of. In the whole operation process, the diaphragm on the sound film of the earphone can not be influenced by external force, so that the damage of the diaphragm can be avoided, and the assembly efficiency of the sound film of the earphone can be improved.

During implementation, the base 601 is further provided with a jig seat 605, and the jig seat 605 is provided with a positioning groove matched with the sound film jig in shape, so that the sound film jig placed in the positioning groove is opposite to the feeding jig 5 installed on the jig fixing seat 603 in a matching manner.

Like this, through the positioning groove on the tool seat, can confirm the position of sound membrane tool fast, the pressure equipment of the earphone sound membrane of being convenient for improves pressure equipment efficiency.

In implementation, the bottom of the feeding jig body 501 is provided with a positioning column or a positioning groove which is matched with the sound film jig.

Like this, the cooperation of reference column or constant head tank on the material loading tool body and constant head tank or reference column on the sound membrane tool can guarantee that the cooperation precision of the two is higher when the pressure equipment to can improve the qualification rate of pressure equipment.

When the positioning device is implemented, two positioning columns or two positioning grooves are arranged, and the cross-sectional shapes of the two positioning columns or the two positioning grooves are different.

Therefore, the placement direction of the sound film jig can be prevented from being reversed, so that the mistake can be prevented, and the assembly quality can be ensured.

During implementation, a protruding top pin 506 is further inserted into the bottom of the feeding jig body 501, and a return spring is arranged between the bottom of the top pin 506 and the feeding jig body 501, so that the top pin 506 can be completely retracted under the action of external force.

Due to the fact that the matching precision of the positioning columns or the positioning pins is high, the sound film jig and the feeding jig can not be separated after press mounting. By adopting the structure, when the sound film jig for clamping the sound film of the earphone is matched with the feeding jig body for press mounting, the ejector pin retracts under the action of the sound film jig, and after the press mounting is finished, the ejector pin outwards ejects the sound film jig under the action of the reset spring, so that the sound film jig is separated from the feeding jig body, and the assembling efficiency is improved.

In implementation, the baffle ring 503 includes a plurality of arc-shaped baffles uniformly distributed along the circumferential direction of the feeding hole 502.

Like this, keep off the ring through what a plurality of arc separation blades constitute and have a plurality of breachs in circumference to can reduce the area of contact when earphone sound membrane passes and keep off the ring, reduce the extrusion resistance of earphone sound membrane, the earphone sound membrane of being convenient for more conveniently presses and crosses keeping off the ring, further avoids earphone sound membrane deformation damage when the pressure equipment, improves pressure equipment efficiency.

In practice, the baffle ring 503 is made of copper.

In practice, the pressing block 504 has a vent hole (not shown) formed therethrough in the axial direction.

Therefore, air between the cavity and the sound film of the earphone can be communicated with the atmosphere, the phenomenon that the diaphragm of the sound film of the earphone deforms due to the fact that air is retained and compressed is avoided, and the qualified rate of assembly is guaranteed.

In implementation, an observation groove 505 is formed on the outward side of the feeding jig body 501, the observation groove 505 is communicated with the feeding hole 502, and extends to the lower end of the feeding hole 502 along the axial direction of the feeding hole 502; the width of the observation groove 505 is smaller than the diameter of the feeding hole 502.

Because the width of observation groove is less than the diameter in material loading hole, just can guarantee that earphone sound membrane coaxial all the time places in the material loading hole, and the observation groove extends to the lower extreme in material loading hole in addition, just can see the surplus of placing of the earphone sound membrane in the material loading hole through the observation groove, and the operator of being convenient for in time supplyes the earphone sound membrane.

In implementation, 6 feeding holes 502 are equidistantly arranged along the length direction of the feeding jig body 501; the first telescopic device 602 and the second telescopic device 604 are vertically arranged cylinders; the jig fixing seat 603 includes a bottom plate vertically installed on the telescopic end of the first telescopic device 602, it should be noted that the upright column and the bottom plate are not directly and fixedly connected, but the bottom plate is installed on the telescopic end of the first telescopic device 602 and is fixedly installed with the upright column through the first telescopic device 602, and the connection between the upright column and the bottom plate in fig. 8 is an illusion caused by the influence of the view angle. The lower end of the bottom plate is outwards protruded to form a support block, the width of the bottom plate is consistent with that of the feeding jig 5, two sides in the width direction are also provided with outwards extending pull rods, the end parts of the two pull rods oppositely extend to form a pressing seat, and the pressing seat is provided with a threaded hole which is arranged in a penetrating manner in the direction vertical to the bottom plate and is provided with a locking screw rod; the locking screw rod is towards the one end of base has the clamp plate of perpendicular setting, the clamp plate rotationally installs locking screw rod is last, locking screw rod's the other end fixed mounting has the rotation handle.

Like this, place the material loading tool on the tray, rotate two locking screw rods again, make the clamp plate on the locking screw rod compress tightly the material loading tool, just can fix the material loading tool on the tool fixing base, easy dismounting. Set up a plurality of material loading holes and can press fitting earphone sound membrane simultaneously on a plurality of holes that clamp on the sound membrane tool to improve assembly efficiency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The earphone sound film assembling jig is characterized by comprising a jig body (401) and a movable jig (402) which are vertically stacked, wherein a circular clamping hole (403) for placing an earphone sound film is vertically and penetratingly arranged on the jig body (401), and the inner diameter of the circular clamping hole (403) is matched with the diameter of the earphone sound film, so that the earphone sound film can be coaxially clamped into the circular clamping hole (403); the movable jig (402) is provided with a core column (404) which is matched with the circular clamping hole (403), and the diameter of the core column (404) is matched with the inner diameter of the circular clamping hole (403), so that the core column (404) can coaxially move along the circular clamping hole (403); the middle part of the end face of the core column (404) is sunken to form an accommodating cavity for accommodating a diaphragm of the sound film of the earphone, so that the edge of the accommodating cavity forms an annular supporting ring, and the inner diameter of the supporting ring is larger than or equal to that of a copper ring on the sound film of the earphone; the height of the core column (404) is greater than the length of the circular clamping hole (403), so that when the movable jig (402) is attached to the jig body (401), the end part of the core column (404) can penetrate out of the circular clamping hole (403); a compressible reset mechanism is further arranged between the movable jig (402) and the jig body (401), so that the movable jig (402) and the jig body (401) are in a spaced state, and the end part of the core column (404) is retractably located in the circular clamping hole (403).

2. The earphone sound film assembling jig according to claim 1, characterized in that the jig body (401) further has a plurality of abdicating holes (405) uniformly distributed along the circumference of the circular clamping hole (403), the abdicating holes (405) are arranged along the axial direction of the circular clamping hole (403) in a penetrating manner, and the axial distance between the abdicating holes (405) and the circular clamping hole (403) is smaller than the sum of the radii of the abdicating holes and the circular clamping hole.

3. The earphone sound film assembling jig according to claim 2, characterized in that one side of the jig body (401) facing away from the movable jig (402) is provided with a recessed abdicating groove (406), the abdicating groove (406) is communicated with the abdicating hole (405) on the jig body (401) near the outer side and extends to the outer side of the jig body (401); have on the support ring of stem (404) and hold the breach that the chamber intercommunication set up, the breach is located be close to the outside on tool body (401) abdication hole (405) position department.

4. The tool for assembling the sound film of the earphone as claimed in claim 1, wherein the shape of the accommodating cavity matches with the shape of the diaphragm of the sound film of the earphone, so that the sound film of the earphone can be placed on the accommodating cavity in a fitting manner.

5. The earphone sound film assembling jig according to claim 1, wherein the stem (404) has a vent hole (407) formed at a middle portion thereof so as to extend therethrough in an axial direction.

6. The earphone sound film assembling jig according to claim 1, wherein the resetting mechanism comprises a plurality of first magnets (408) arranged along the edge of the jig body (401) and a plurality of second magnets (409) arranged along the edge of the movable jig (402), the second magnets (409) and the first magnets (408) are in one-to-one correspondence, and the magnetic poles of the second magnets (409) and the first magnets (408) which are in mutual correspondence are oppositely arranged in a repulsive manner.

7. The earphone sound film assembling jig according to claim 1, wherein a limiting block (410) is further mounted on the jig body (401), and the movable jig (402) is axially movably arranged between the limiting block (410) and the jig body (401) along the stem (404).

8. The earphone sound film assembling jig according to claim 7, characterized in that one side of the jig body (401) facing the movable jig (402) is provided with a limiting cavity having a shape consistent with that of the movable jig (402), the depth of the limiting cavity is greater than the thickness of the movable jig (402), and the movable jig (402) is located in the limiting cavity; the limiting block (410) is mounted on the jig body (401) through bolts and covers the area where the limiting cavity is located.

9. The earphone sound film assembling jig according to claim 8, characterized in that the jig body (401) or/and the movable jig (402) has a vent hole vertically penetrating therethrough.

10. The earphone sound film assembly jig according to claim 1, wherein the jig body (401) and the movable jig (402) are both strip-shaped, and a plurality of circular clamping holes (403) are uniformly distributed along the length direction of the jig body (401); two ends of the jig body (401) in the length direction are respectively provided with a positioning groove or a positioning column, and the cross-sectional shapes of the two positioning grooves or the two positioning columns are different.

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