CN211429510U

CN211429510U - Press-in assembly device for sound film of earphone

Info

Publication number: CN211429510U
Application number: CN202020537411.5U
Authority: CN
Inventors: 卢相荣; 辛川
Original assignee: Chongqing Xialang Technology Co ltd
Current assignee: Chongqing Xialang Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-09-04
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a press-in assembly device of an earphone sound film, which comprises a base and a press-mounting mechanism arranged above the base through a stand column, wherein the press-mounting mechanism comprises a first telescopic device vertically arranged on the stand column, a feeding jig is arranged on the telescopic end of the first telescopic device, the feeding jig comprises a feeding jig body, a feeding hole vertically communicated with the feeding jig body is arranged on the feeding jig body, and the inner diameter of the feeding hole is consistent with the diameter of the earphone sound film; the bottom of the feeding hole is provided with a baffle ring which is coaxially arranged; a pressing block is also arranged in the feeding hole, and an annular pressing ring is formed at the edge of the bottom surface of the pressing block; the jig fixing seat is also provided with a second telescopic device which is arranged corresponding to the feeding hole, and the telescopic end of the second telescopic device is arranged opposite to the feeding hole downwards along the axial direction of the feeding hole. The utility model has the advantages of operation convenient to use can be fast harmless ground pressure dress sound membrane, is favorable to improving assembly efficiency and qualification rate.

Description

Press-in assembly device for sound film of earphone

Technical Field

The utility model relates to an earphone loudspeaker's assembly technical field, very much relate to an earphone sound membrane's assembly quality of impressing.

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.

As described in chinese patent application publication No. CN110708628A, the assembly method requires that the voice diaphragm 2 is clamped and fixed on a voice diaphragm fixture before the voice diaphragm 2 and the voice coil 1 are coaxially and correspondingly bonded, and the voice diaphragm 2 and the voice coil 1 are turned and fastened on the voice coil fixture on which the voice coil 1 is placed, so that the voice diaphragm 2 and the voice coil 1 are coaxially bonded, and since the middle of the voice diaphragm 2 is a diaphragm which is easily damaged, how to quickly clamp the voice diaphragm 2 on the voice diaphragm fixture becomes a problem to be solved.

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 an operation convenient to use, can be fast harmless pressure equipment sound membrane, be favorable to improving the assembly efficiency and the assembly quality of impressing of earphone sound membrane.

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

the press-in assembling device for the earphone sound film is characterized by comprising a base and a press-mounting mechanism arranged above the base through a stand column, wherein the press-mounting mechanism comprises a first telescopic device vertically arranged on the stand column, a jig fixing seat is arranged at the telescopic end of the first telescopic device, a feeding jig is vertically detachably arranged on the jig fixing seat, the feeding jig comprises a feeding jig body, a feeding hole vertically arranged in a penetrating manner is formed in the feeding jig body, the inner diameter of the feeding hole is consistent with the 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 is provided with a baffle ring which is coaxially arranged, the inner diameter of the baffle ring is smaller than that of the feeding hole, and the baffle ring can be in detachable interference fit with a copper ring on an earphone sound film; a pressing block capable of moving axially is further arranged in the feeding hole, the diameter of the pressing block is consistent with the inner diameter of the feeding hole, a yielding cavity for containing 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 on 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 is also provided with a second telescopic device which is arranged corresponding to the feeding hole, and the telescopic end of the second telescopic device is arranged opposite to the feeding hole downwards along the axial direction of the feeding hole; the size of the telescopic end of the second telescopic device is smaller than the diameter of the feeding hole, and the telescopic length is larger than the length of the feeding hole.

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.

Furthermore, a jig seat is further arranged on the base, and a positioning groove matched with the appearance of the sound film jig is formed in the jig seat, so that the sound film jig placed in the positioning groove is opposite to the feeding jig arranged on the jig fixing seat in a matched mode.

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.

Furthermore, the bottom of the feeding jig body 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.

Furthermore, the number of the positioning columns or the positioning grooves is two, 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.

Furthermore, the bottom of the feeding jig body is also inserted with a protruding ejector pin, and a return spring is arranged between the bottom of the ejector pin and the feeding jig body, so that the ejector pin 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.

Furthermore, the baffle ring comprises a plurality of arc-shaped baffle sheets which are uniformly distributed along the circumferential direction of the feeding hole.

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.

Furthermore, the baffle ring is made of copper.

Furthermore, the pressing block is provided with a vent hole which is arranged in a penetrating way along 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.

Furthermore, an observation groove is formed in one outward side of the feeding jig body, is communicated with the feeding hole and extends to the lower end of the feeding hole along the axial direction of the feeding hole; the width of the observation groove is smaller than the diameter of the feeding hole.

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.

Furthermore, a plurality of feeding holes are arranged at equal intervals along the length direction of the feeding jig body; the first telescopic device and the second telescopic device are both vertically arranged cylinders; the jig fixing seat comprises a bottom plate vertically installed on the telescopic end of the first telescopic device, a support block is formed at the lower end of the bottom plate in an outward protruding mode, the width of the bottom plate is consistent with that of the feeding jig, two sides in the width direction are provided with outwards extending pull rods, the end portions of the two pull rods oppositely extend to form pressing seats, threaded holes are formed in the pressing seats in a penetrating mode in the direction perpendicular to the bottom plate, and locking screw rods are installed on the pressing seats; 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.

To sum up, the utility model has the advantages of operation convenient to use can be fast harmless ground pressure dress sound membrane, is favorable to improving assembly efficiency and 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.

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.

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.

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.

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.

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

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.

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.

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.

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

1. The press-in assembling device for the earphone sound film is characterized by comprising a base (601) and a press-mounting mechanism which is installed above the base (601) through a stand column, wherein the press-mounting mechanism comprises a first telescopic device (602) which is vertically installed on the stand column, a jig fixing seat (603) is installed on the telescopic end of the first telescopic device (602), a feeding jig (5) is vertically and detachably installed on the jig fixing seat (603), the feeding jig (5) comprises a feeding jig body (501), a feeding hole (502) which is vertically arranged in a penetrating mode is formed in the feeding jig body (501), the inner diameter of the feeding hole (502) is consistent with the diameter of the earphone sound film, and the feeding hole can be in clearance fit with a copper ring of the earphone sound film; the bottom of the feeding hole (502) is provided with a baffle ring (503) which is coaxially arranged, the inner diameter of the baffle ring (503) is smaller than that of the feeding hole (502), and the baffle 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 containing 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 on 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 also provided with a second telescopic device (604) which is arranged corresponding to the feeding hole (502), and the 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 larger than the length of the feeding hole (502).

2. The press-in assembling device for the sound film of the earphone according to claim 1, wherein the base (601) is further provided with a jig base (605), the jig base (605) is provided with a positioning groove matching with the shape of the sound film jig, so that the sound film jig placed in the positioning groove is opposite to the feeding jig (5) installed on the jig fixing base (603) in a matching manner.

3. The press-in assembling device for the sound film of the earphone according to claim 2, wherein 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.

4. The press-in assembling device for a sound film of an earphone as claimed in claim 3, wherein there are two positioning posts or positioning grooves, and the two positioning posts or positioning grooves have different cross-sectional shapes.

5. The press-in assembling device for the sound film of the earphone according to claim 3, wherein a protruding 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 pin (506) and the feeding jig body (501), so that the pin (506) can be completely retracted under the action of external force.

6. The press-in assembling device for the sound film of the earphone according to claim 1, wherein the baffle ring (503) comprises a plurality of circular arc-shaped baffle plates uniformly distributed along the circumferential direction of the feeding hole (502).

7. Press-in mounting device for a sound membrane of a headphone according to claim 1, characterised in that the stop ring (503) is made of copper.

8. The press-fit assembly device for a sound membrane of an earphone as claimed in claim 1, wherein the pressing piece (504) has a vent hole formed therethrough in the axial direction.

9. The press-in assembling device for the sound film of the earphone according to claim 1, wherein the outward side of the feeding jig body (501) is provided with an observation groove (505), 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).

10. The press-in assembling device for the sound film of the earphone according to claim 1, wherein a plurality of the feeding holes (502) are arranged at equal intervals along the length direction of the feeding jig body (501); the first telescopic device (602) and the second telescopic device (604) are both vertically arranged cylinders; the jig fixing seat (603) comprises a bottom plate vertically installed on the telescopic end of the first telescopic device (602), a support block is formed at the lower end of the bottom plate in an outwards protruding mode, the width of the bottom plate is consistent with that of the feeding jig (5), outwards extending pull rods are further arranged on two sides in the width direction, pressing seats are formed by oppositely extending end portions of the two pull rods, threaded holes are formed in the pressing seats in a penetrating mode in the direction perpendicular to the bottom plate, and locking screws are installed on the pressing seats; 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.