An assembling jig and an assembling device for a microphone

Abstract

The application discloses an assembling jig and an assembling device of a microphone, and relates to the technical field of microphone production. The assembling jig comprises a bottom plate, a film ring assembly and a cover plate. The bottom plate is used for fixing a polar plate of the microphone. The film ring assembly can fix and tension a diaphragm, and make the diaphragm be located above the polar plate. The cover plate is used for fixing a film pressing ring of the microphone. When the cover plate is buckled on the bottom plate, the film pressing ring presses the diaphragm on the polar plate. The assembling jig of the microphone can keep the tension of the diaphragm in each direction unchanged, guarantee the acoustic performance of the microphone, and ensure the consistency of product performance in batch production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of microphone production, and in particular to an assembling jig and assembling device for a microphone. BACKGROUND

[0002] A microphone is a common sound receiving device, which functions to convert a sound signal into an electric signal. The most important components of a microphone are a diaphragm and a plate. During sound reception, sound causes the diaphragm to vibrate, changes the distance between the diaphragm and the plate, and changes the capacitance between the diaphragm and the plate, thereby converting a sound signal into an electric signal.

[0003] The diaphragm is a plastic film that is taut and has a fixed tension. The diaphragm is taut and clamped between the plate and a membrane pressing ring, and is fixed by screwing. However, during installation of the screw, screw locking actions in different directions change the tension of the diaphragm, affect the acoustic performance, and cannot effectively guarantee the consistency of product performance during mass production.

[0004] In view of the above problems, it is necessary to develop an assembling jig and assembling device for a microphone to solve the above problems. SUMMARY

[0005] The present application aims to provide an assembling jig and assembling device for a microphone, which can keep the tension of the diaphragm in each direction unchanged, guarantee the acoustic performance of the microphone, and guarantee the consistency of product performance during mass production.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] An assembling jig for a microphone comprises:

[0008] a bottom plate for fixing a plate of the microphone;

[0009] a membrane ring assembly capable of fixing and tensioning a diaphragm and locating the diaphragm above the plate;

[0010] a cover plate for fixing a membrane pressing ring of the microphone, wherein when the cover plate is buckled to the bottom plate, the membrane pressing ring presses the diaphragm against the plate.

[0011] In some embodiments, the membrane ring assembly comprises a first fixing ring and a second fixing ring, the first fixing ring and the second fixing ring are fixedly connected by a first locking screw, and the diaphragm is located between the first fixing ring and the second fixing ring.

[0012] In some embodiments, the carrier ring assembly further comprises a support ring, the outer periphery of the support ring is threadedly connected with the first fixing ring or the second fixing ring, and the support ring abuts against the diaphragm.

[0013] In some embodiments, the cover plate is provided with a fixing groove, the cover plate is provided with an elastic member, the pressing ring is arranged in the fixing groove, and one end of the elastic member extends out of the side wall of the fixing groove and abuts against the pressing ring.

[0014] In some embodiments, the pressing ring and the polar plate are fixedly connected through a second locking screw, the cover plate is provided with a first through hole, and when the cover plate is buckled on the bottom plate, the second locking screw passes through the first through hole, penetrates through the pressing ring and is threadedly connected with the polar plate.

[0015] In some embodiments, the bottom plate is provided with a first positioning pin, the polar plate is provided with a first positioning hole, the first positioning pin is inserted into the first positioning hole, the cover plate is provided with a second positioning pin, and the pressing ring is provided with a second positioning hole, the second positioning pin is inserted into the second positioning hole.

[0016] In some embodiments, the assembly jig further comprises a third locking screw, and when the cover plate is buckled on the bottom plate, the third locking screw penetrates through the cover plate and is threadedly connected with the bottom plate.

[0017] In some embodiments, the assembly jig further comprises a cushion block, the cushion block is arranged on the bottom plate, and when the pressing ring presses the diaphragm against the polar plate, the cover plate abuts against the cushion block.

[0018] In some embodiments, the cover plate is provided with a mounting hole, and the terminal and the gasket of the microphone can be mounted on the diaphragm through the mounting hole.

[0019] An assembly device of a microphone comprises the assembly jig of the microphone, and further comprises:

[0020] A fixing table configured to fix the assembly jig;

[0021] A pressing member arranged on the fixing table in a vertical direction, and capable of pressing the cover plate and providing a sustained pressure.

[0022] The present application has the following beneficial effects:

[0023] The present application provides an assembly jig and an assembly device of a microphone. In the assembly jig, the bottom plate is used for bearing and fixing the polar plate, the carrier ring assembly is used for fixing and tensioning the diaphragm, and then the diaphragm is placed on the polar plate, at least part of the diaphragm is arranged in a spaced manner with the polar plate, and when the cover plate is buckled on the bottom plate, the pressing ring presses the diaphragm against the polar plate.

[0024] Since the cover plate and the bottom plate clamp the diaphragm ring and the plate together, and the diaphragm ring assembly is tensioned, the tension of the diaphragm in each direction can be kept unchanged when the diaphragm ring and the plate are fixed, the acoustic performance of the microphone is ensured, and the consistency of the product performance in batch production is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is an exploded view of the conversion module of the microphone provided by the application;

[0026] Figure 2 is a structural schematic view of the structure of the cover plate provided by the application;

[0027] Figure 3 is an exploded view of the conversion module and the assembly jig provided by the application;

[0028] Figure 4 is a structural schematic view of the cover plate provided by the application;

[0029] Figure 5 is a structural schematic view of the assembly device provided by the application.

[0030] In the drawings:

[0031] 101, plate; 1011, plate body; 1012, grommet; 1013, first positioning hole; 102, diaphragm ring; 1021, second positioning hole; 103, gasket;

[0032] 1, assembly jig; 2, fixing table; 3, pressing piece; 4, driving piece;

[0033] 11, bottom plate; 12, diaphragm ring assembly; 13, cover plate; 14, third locking screw; 15, cushion block;

[0034] 111, first positioning pin; 112, fourth positioning pin; 113, third positioning pin; 121, first fixing ring; 122, second fixing ring; 123, support ring; 124, first locking screw; 131, fixing groove; 132, elastic piece; 133, first through hole; 134, second positioning pin; 135, mounting hole; 136, avoiding hole; 137, third positioning hole; 138, mounting groove; 139, pressing block;

[0035] 1221, ring body; 1222, protruding ring; 1223, fourth positioning hole. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0038] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0039] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] A microphone is a common sound receiving device; its function is to convert sound signals into electrical signals. For example... Figure 1As shown, the microphone includes a conversion module, which includes a plate 101, a diaphragm and a ring 102, the diaphragm is tensioned and clamped between the plate 101 and the ring 102, and the diaphragm is spaced apart from the plate 101, and the plate 101 and the ring 102 are usually fixed by screwing. When sound is transmitted to the microphone, the diaphragm vibrates, changes the distance between the diaphragm and the plate 101, and changes the capacitance between the diaphragm and the plate 101, thereby converting the sound signal into an electrical signal.

[0042] During the installation of the screw, the screw locking action in different directions changes the tension of the diaphragm, which affects the acoustic performance, and the consistency of the performance of the products in batch production cannot be effectively guaranteed.

[0043] It should be noted that the diaphragm is in a tensioned state when it is fixed by the ring 102 and the plate 101. In order to have a gap between the diaphragm and the plate 101, the plate 101 includes a plate body 1011 and a boss protruding along the outer periphery of the plate body 1011, the ring 102 is fixedly connected with the boss, and the diaphragm is located between the boss and the ring 102. At this time, the diaphragm is spaced apart from the middle position of the plate body 1011, so that the diaphragm can change the capacitance between the diaphragm and the plate body 1011 by vibration.

[0044] In some embodiments, the plate 101 includes a plate body 1011 and a gasket 1012, the gasket 1012 is arranged on the plate body 1011, the diaphragm is arranged on the gasket 1012, and the ring 102 is pressed on the gasket 1012. The fixing screw is screwed with the plate body 1011 after passing through the ring 102 and the gasket 1012. In design, the gasket 1012 with a suitable thickness can be selected as needed.

[0045] In this embodiment, the plate 101 including the plate body 1011 and the gasket 1012 is taken as an example for description.

[0046] The embodiment provides an assembling jig 1 of a microphone, as shown in Figure 2 and Figure 3 The assembling jig 1 includes a bottom plate 11, a diaphragm ring assembly 12 and a cover plate 13. The bottom plate 11 is used for fixing the plate 101 of the microphone, the diaphragm ring assembly 12 can fix and tension the diaphragm, and the diaphragm is located above the plate 101, and the cover plate 13 is used for fixing the ring 102 of the microphone. When the cover plate 13 is buckled on the bottom plate 11, the ring 102 presses the diaphragm on the plate 101.

[0047] In the assembling jig 1, the bottom plate 11 is used for bearing and fixing the plate 101, the diaphragm ring assembly 12 can fix the diaphragm and keep a certain tension of the diaphragm, and when the diaphragm ring assembly 12 places the diaphragm on the plate 101 and buckles the cover plate 13 on the bottom plate 11, the ring 102 presses the diaphragm on the plate 101.

[0048] Because the cover plate 13 and the bottom plate 11 jointly clamp the diaphragm ring 102 and the plate 101, the diaphragm between the diaphragm ring 102 and the plate 101 is clamped and fixed, so when the diaphragm ring 102 and the plate 101 are fixed by screws, the tension of the diaphragm in each direction will not change, thereby ensuring the acoustic performance of the microphone and ensuring the consistency of product performance in batch production.

[0049] As shown in Figure 3 and Figure 4 , the cover plate 13 is provided with a mounting groove 138, and a resilient pressing block 139 is arranged in the mounting groove 138. When the cover plate 13 is buckled on the bottom plate 11, the pressing block 139 elastically presses the diaphragm ring assembly 12. The pressing block 139 can fix the diaphragm ring assembly 12 and prevent the diaphragm ring assembly 12 from moving to cause the relative position of the diaphragm and the plate 101 to deviate, thereby improving the accuracy of assembly.

[0050] As shown in Figure 3 , the assembly jig 1 further comprises a third locking screw 14, which passes through the cover plate 13 and is threadedly connected with the bottom plate 11 when the cover plate 13 is buckled on the bottom plate 11. The third locking screw 14 can fix the cover plate 13 and the bottom plate 11, so that the diaphragm between the diaphragm ring 102 and the plate 101 is clamped and fixed, and the fixing pressure remains unchanged.

[0051] As shown in Figure 2 and Figure 3 , the diaphragm ring assembly 12 comprises a first fixing ring 121 and a second fixing ring 122, and the first fixing ring 121 and the second fixing ring 122 are fixedly connected by a first locking screw 124. The diaphragm is located between the first fixing ring 121 and the second fixing ring 122. The first locking screw 124 can fix the diaphragm between the first fixing ring 121 and the second fixing ring 122, so that the diaphragm maintains a stable tension. After the diaphragm ring with the fixed diaphragm is sleeved on the outer periphery of the plate 101, the diaphragm is spaced above the plate 101.

[0052] As shown in Figure 3 , the second fixing ring 122 comprises a ring body 1221 and a convex ring 1222, and the convex ring 1222 is concentrically arranged with the ring body 1221 and fixedly connected. The first fixing ring 121 is sleeved outside the convex ring 1222 and is arranged in a gap with the convex ring 1222. When the first fixing ring 121 and the second fixing ring 122 are fixedly connected, the diaphragm between the first fixing ring 121 and the second fixing ring 122 is located between the first fixing ring 121 and the ring body 1221 and between the first fixing ring 121 and the convex ring 1222. Because the diaphragm is bent, the stability of the diaphragm can be ensured, and the diaphragm will not shrink, thereby maintaining the tension unchanged.

[0053] Further, when the diaphragm supporting ring assembly 12 is arranged on the bottom plate 11, the highest point of the convex ring 1222 is level with the upper surface of the gasket ring 1012 of the pole plate 101. The diaphragm is finally tensioned by the convex ring 1222, that is, the height of the diaphragm is the highest point of the convex ring 1222. Since the highest point of the convex ring 1222 is level with the upper surface of the gasket ring 1012 of the pole plate 101, when the diaphragm supporting ring assembly 12 and the pole plate 101 are fixed on the bottom plate 11, the diaphragm is lapped on the gasket ring 1012, so that the tension of the diaphragm remains unchanged when the diaphragm is fixed by the diaphragm pressing ring 102.

[0054] In some embodiments, the diaphragm supporting ring assembly 12 further comprises a supporting ring 123, the outer periphery of the supporting ring 123 is threadedly connected with the first fixing ring 121 or the second fixing ring 122, and the supporting ring 123 abuts against the diaphragm. The supporting ring 123 can support the diaphragm. After the diaphragm is fixed by the first fixing ring 121 and the second fixing ring 122, rotating the supporting ring 123 can make the supporting ring 123 ascend and descend between the first fixing ring 121 and the second fixing ring 122, so as to change the tension of the diaphragm. When the tension of the diaphragm reaches a fixed value, stop rotating the supporting ring 123, and the tension of the diaphragm can be fixed, which is convenient for installation.

[0055] In the embodiment, the supporting ring 123 is threadedly connected with the second fixing ring 122.

[0056] Preferably, the bottom plate 11 protrudes with a fourth positioning pin 112, the second fixing ring 122 is provided with a fourth positioning hole 1223, and the fourth positioning pin 112 is inserted into the fourth positioning hole 1223. The fourth positioning pin 112 can position the second fixing ring 122, so as to position the diaphragm supporting ring assembly 12, and ensure that, after the diaphragm supporting ring assembly 12 is sleeved on the outer periphery of the pole plate 101, the relative position between the diaphragm supporting ring assembly 12 and the pole plate 101, so as to prevent the diaphragm from deviating.

[0057] As shown in Figs. 1 and 2, the cover plate 13 is provided with an avoiding hole 136, and the screw cap of the first locking screw 124 protrudes from the first fixing ring 121 and enters the avoiding hole 136. Figure 3 Figure 4 The avoiding hole 136 can avoid the screw cap of the first locking screw 124, so as to avoid interference between the screw cap of the first locking screw 124 and the cover plate 13, and ensure that the cover plate 13 can be smoothly buckled on the bottom plate 11. It should be noted that the avoiding hole 136 can also be in the form of a blind hole to form an avoiding groove.

[0058] As shown in Figs. 1 and 2, the cover plate 13 is provided with an avoiding hole 136, and the screw cap of the first locking screw 124 protrudes from the first fixing ring 121 and enters the avoiding hole 136. Figure 4 ​As shown, the cover plate 13 is provided with a fixing groove 131, and the cover plate 13 is provided with an elastic element 132. The pressing film ring 102 is arranged in the fixing groove 131, and one end of the elastic element 132 extends out of the side wall of the fixing groove 131 and abuts against the pressing film ring 102. The fixing groove 131 can position the pressing film ring 102, and ensure the accuracy of the position between the pressing film ring 102 and the polar plate 101. The elastic element 132 can fix the pressing film ring 102 in the fixing groove 131, and make the pressing film ring 102 smoothly separate from the fixing groove 131 when the pressing film ring 102 is fixed to the polar plate 101.

[0059] Specifically, the elastic element 132 is an elastic probe.

[0060] As shown in Figure 3 and Figure 4 The pressing film ring 102 is fixedly connected with the polar plate 101 through a second locking screw, the cover plate 13 is provided with a first through hole 133, and when the cover plate 13 is buckled to the bottom plate 11, the second locking screw passes through the first through hole 133 and then passes through the pressing film ring 102 and is threadedly connected with the polar plate 101. When the pressing film ring 102 is pressed on the polar plate 101 by the cover plate 13, the cover plate 13 will block the pressing film ring 102 and the polar plate 101, and it is difficult to fix the pressing film ring 102 and the polar plate 101 by the second locking screw. The first through hole 133 can avoid the second locking screw, so as to fix the pressing film ring 102 and the polar plate 101 by the second locking screw.

[0061] Preferably, the bottom plate 11 is provided with a first positioning pin 111, the polar plate 101 is provided with a first positioning hole 1013, the first positioning pin 111 is inserted into the first positioning hole 1013, the cover plate 13 is provided with a second positioning pin 134, and the pressing film ring 102 is provided with a second positioning hole 1021, and the second positioning pin 134 is inserted into the second positioning hole 1021.

[0062] The first positioning pin 111 can position the polar plate 101, so as to fix the relative position between the polar plate 101 and the bottom plate 11. The second positioning pin 134 can position the pressing film ring 102, so as to fix the relative position between the pressing film ring 102 and the cover plate 13. When the cover plate 13 is buckled to the bottom plate 11, the pressing film ring 102 is opposite to the polar plate 101, so as to ensure that the second locking screw can fix the pressing film ring 102 and the polar plate 101.

[0063] Further, the bottom plate 11 is provided with a third positioning pin 113, the cover plate 13 is provided with a third positioning hole 137, and when the cover plate 13 is buckled to the bottom plate 11, the third positioning pin 113 is inserted into the third positioning hole 137. The third positioning pin 113 can fix the relative position between the bottom plate 11 and the cover plate 13, so as to further improve the accuracy of the relative position between the pressing film ring 102 and the polar plate 101.

[0064] It should be noted that in order to improve the positioning accuracy, the first positioning pin 111, the second positioning pin 134, the third positioning pin 113 and the fourth positioning pin 112 are all provided with two.

[0065] As shown in Figure 2 and Figure 3 The assembly jig 1 further comprises a pad 15 arranged on the bottom plate 11, and the cover plate 13 abuts against the pad 15 when the diaphragm pressing ring 102 presses the diaphragm against the plate 101. The pad 15 can support the cover plate 13 and prevent the diaphragm pressing ring 102 from being damaged due to excessive pressure of the cover plate 13.

[0066] In some embodiments, the pad 15 is made of polyurethane, which has a certain elasticity and can buffer the downward pressure of the cover plate 13, so that the pressure between the diaphragm pressing ring 102 and the plate 101 gradually increases, preventing the diaphragm from being damaged due to instantaneous increase in pressure.

[0067] It can be understood that the diaphragm needs to be installed with terminals to form a capacitor with the plate 101, and a gasket 103 needs to be arranged between the terminals and the diaphragm. In order to facilitate the installation of the terminals and the gasket 103 on the diaphragm, the cover plate 13 is provided with a mounting hole 135, and the terminals and the gasket 103 of the microphone can be installed on the diaphragm through the mounting hole 135.

[0068] The embodiment also provides an assembly device for the microphone, as shown in Figure 5 The assembly device comprises the assembly jig 1 described above, and further comprises a fixing table 2 and a downward pressing piece 3. The fixing table 2 is configured to fix the assembly jig 1, and the downward pressing piece 3 is arranged on the fixing table 2 in a vertical direction and can press the cover plate 13 and provide a constant pressure.

[0069] After the assembly jig 1 is fixed on the fixing table 2, the downward pressing piece 3 can be lowered and press the cover plate 13, thereby continuously providing a pressure for fixing the diaphragm between the diaphragm pressing ring 102 and the plate 101, and the pressure value remains constant, which can not only fix the diaphragm but also prevent the diaphragm from being damaged.

[0070] The operation process of the assembly device is as follows:

[0071] The plate 101 is placed on the bottom plate 11 of the assembly jig 1, and the first positioning pin 111 is inserted into the first positioning hole 1013;

[0072] The diaphragm is placed between the first fixing ring 121 and the second fixing ring 122 and buckled with the first fixing ring 121 and the second fixing ring 122, and the diaphragm is kept at a predetermined tension;

[0073] After the support ring 123 is placed into the second fixing ring 122, the membrane carrier ring assembly 12 is placed on the bottom plate 11, and the fourth positioning pin 112 is inserted into the fourth positioning hole 1223 of the second fixing ring 122 for positioning. At this time, the membrane carrier ring assembly 12 is sleeved outside the polar plate 101, and the diaphragm is located above the polar plate 101 and is spaced apart from the polar plate 101;

[0074] The membrane pressing ring 102 is placed into the fixing groove 131 of the cover plate 13, and the second positioning pin 134 is inserted into the second positioning hole 1021. At the same time, the elastic member 132 abuts against the side wall of the membrane pressing ring 102 to fix the membrane pressing ring 102;

[0075] The cover plate 13 is buckled on the bottom plate 11, and the third positioning pin 113 is inserted into the third positioning hole 137;

[0076] The assembly jig 1 is placed on the fixing table 2, and the lower pressing member 3 is moved downward to press against the cover plate 13. The lower pressing member 3 provides a preset pressure to the assembly jig 1;

[0077] The third locking screw 14 is used to fix the cover plate 13 and the bottom plate 11 together, and the pressure between the cover plate 13 and the bottom plate 11 is kept unchanged;

[0078] The lower pressing member 3 is lifted upward, the assembly jig 1 is taken out, and the second locking screw is used to fix the membrane pressing ring 102 and the polar plate 101 through the first through hole 133. The terminal is mounted on the diaphragm through the mounting hole 135;

[0079] The third locking screw 14 is loosened, and the cover plate 13 is removed. The diaphragm is cut along the outer periphery of the membrane pressing ring 102 to form a conversion module;

[0080] The membrane carrier ring assembly 12 is taken down;

[0081] The conversion module is taken down.

[0082] Specifically, the assembly device further comprises a driving member 4 arranged on the fixing table 2. The driving member 4 is configured to drive the lower pressing member 3 to move in the vertical direction. In this embodiment, the driving member 4 is a pneumatic cylinder, and the piston rod of the pneumatic cylinder is fixedly connected with the lower pressing member 3.

[0083] The above is only a preferred embodiment of the present application. Those skilled in the art can make changes in specific embodiments and application ranges according to the idea of the present application. The content of this specification should not be understood as a limitation of the present application.

Claims

1. An assembling jig (1) for a microphone, characterized by comprising: The application relates to a microphone fixing device, which comprises the following parts: a bottom plate (11) for fixing a polar plate (101) of a microphone, wherein the polar plate (101) comprises a plate body (1011) and a grommet (1012) arranged on the plate body (1011); a diaphragm carrier ring assembly (12) capable of fixing and tensioning a diaphragm and making the diaphragm be located above the grommet (1012) of the polar plate (101); a cover plate (13) for fixing a film pressing ring (102) of the microphone, wherein when the cover plate (13) is buckled on the bottom plate (11), the film pressing ring (102) presses the diaphragm on the grommet (1012) of the polar plate (101); the diaphragm carrier ring assembly (12) comprises a first fixing ring (121) and a second fixing ring (122), the first fixing ring (121) and the second fixing ring (122) are fixedly connected through a first locking screw (124), and the diaphragm is located between the first fixing ring (121) and the second fixing ring (122); the second fixing ring (122) comprises a ring body (1221) and a convex ring (1222), the convex ring (1222) and the ring body (1221) are concentrically arranged and fixedly connected, the first fixing ring (121) is arranged outside the convex ring (1222) and is arranged in a gap mode with the convex ring (1222); when the diaphragm carrier ring assembly (12) is arranged on the bottom plate (11), the highest point of the convex ring (1222) is in the same height as the upper surface of the grommet (1012) of the polar plate (101), and the diaphragm can be tensioned by the convex ring (1222); the diaphragm carrier ring assembly (12) further comprises a supporting ring (123), the outer periphery of the supporting ring (123) is screw-connected with the inner wall of the first fixing ring (121) or the second fixing ring (122), and the supporting ring (123) abuts against the diaphragm.

2. The assembly jig (1) for a microphone according to claim 1, characterized by, the cover plate (13) is provided with a fixing groove (131), the cover plate (13) is provided with an elastic element (132) inside, the film pressing ring (102) is arranged in the fixing groove (131), and one end of the elastic element (132) extends out of the side wall of the fixing groove (131) and abuts against the film pressing ring (102).

3. The assembly jig (1) for a microphone according to claim 1, characterized by, the film pressing ring (102) and the polar plate (101) are fixedly connected through a second locking screw, the cover plate (13) is provided with a first through hole (133), and when the cover plate (13) is buckled on the bottom plate (11), the second locking screw passes through the first through hole (133), passes through the film pressing ring (102) and is screw-connected with the polar plate (101).

4. The assembly jig (1) for a microphone according to claim 1, characterized by, The bottom plate (11) is provided with a first positioning pin (111), the polar plate (101) is provided with a first positioning hole (1013), the first positioning pin (111) is inserted into the first positioning hole (1013), the cover plate (13) is provided with a second positioning pin (134), the diaphragm ring (102) is provided with a second positioning hole (1021), and the second positioning pin (134) is inserted into the second positioning hole (1021).

5. The assembly jig (1) for a microphone according to claim 1, characterized by, The assembly jig (1) further comprises a third locking screw (14), when the cover plate (13) is buckled to the bottom plate (11), the third locking screw (14) passes through the cover plate (13) and is threadedly connected with the bottom plate (11).

6. The assembly jig (1) for a microphone according to claim 1, characterized by The assembly jig (1) further comprises a cushion block (15), the cushion block (15) is arranged on the bottom plate (11), when the diaphragm ring (102) presses the diaphragm to the polar plate (101), the cover plate (13) abuts against the cushion block (15).

7. The assembly jig (1) for a microphone according to claim 1, characterized by, The cover plate (13) is provided with a mounting hole (135), the terminal of the microphone and the gasket (103) can be mounted on the diaphragm through the mounting hole (135).

8. An apparatus for assembling a microphone, characterized by The assembly jig (1) comprising the microphone as claimed in any one of claims 1-7 further comprises: A fixing table (2) configured to fix the assembly jig (1); A down presser (3) vertically slidingly arranged on the fixing table (2), the down presser (3) is capable of pressing the cover plate (13) and providing a sustained pressure.

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