Precise assembly jig for earphone sounding unit

Abstract

The utility model relates to an earphone sounding unit precision assembly jig, which comprises a bottom plate unit and a jig unit, the jig unit is arranged on the bottom plate unit, the jig unit comprises a jig assembly, and the jig assembly comprises a jig base, a reference seat and a jig plate. On the basis of the requirement for automatic assembly of the earphone sound production unit, the automatic assembly machine integrates the functions of product positioning, adsorption, clamping, assembly and the like, and is compact in mechanism design, diversified in function, high in assembly efficiency and high in assembly precision.

Description

Technical Field

[0001] The utility model relates to the technical field related to the automation industry, in particular to a precision assembly jig for a headphone sound generating unit. Background Art

[0002] In the existing automation industry, the assembly jigs for headphone sound generating units vary greatly in design according to different product types and processes, and their functional requirements are also different. Most of the differences lie in the product process and the product positioning form, and most of them are special jigs, which can only be used on specific equipment in actual applications, and their applications are relatively limited. In actual applications, most assembly jigs need to meet multiple functions, such as positioning, clamping, adsorption, clamping, etc. Moreover, due to their high non-standard and special nature, they need to be independently researched and designed, and cannot be borrowed and applied. In this way, the design and production cycle is lengthened, the cost is increased, and the stability and service life of the mechanism are uncertain, making it difficult to be widely used in subsequent applications.

[0003] In view of the above defects, the designer actively conducts research and innovation in order to create a precision assembly jig for a headphone sound generating unit, making it more valuable in the industry. Summary of the Utility Model

[0004] To solve any of the above technical problems, the purpose of the utility model is to provide a precision assembly jig for a headphone sound generating unit.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A precision assembly jig for a headphone sound generating unit includes a bottom plate unit and a jig unit. The jig unit is installed on the bottom plate unit. The jig unit includes a jig assembly. The jig assembly includes a jig base, a reference base, and a jig plate.

[0007] The reference base is installed at the front end on the jig base. A jig plate is installed in the middle of the reference base. Clamping plate adjusting components are arranged on both the left and right sides of the jig plate. The clamping plate adjusting component includes a clamping plate, a clamping plate connecting rod, and an unlocking rod. The clamping plate connecting rod is installed in a first channel on the reference base along the left-right direction. The unlocking rod is installed in a second channel on the reference base along the front-back direction. The first side of the clamping plate connecting rod extends to the jig plate and is provided with a clamping plate. The second side of the clamping plate connecting rod is in contact with a clamping plate connecting rod baffle installed on the reference base through a spring. The first side of the unlocking rod is hooked to the clamping plate connecting rod. The second side of the unlocking rod is provided with an unlocking rod handle. The unlocking rod handle is in contact with the rear side of the reference base through a spring.

[0008] The fixture unit further includes a sliding seat assembly, which includes a sliding seat and a push rod. A sliding groove distributed in the front-rear direction is formed in the fixture base at the rear end of the reference base. The sliding seat is installed in the sliding groove along the front-rear direction. The left and right sides of the front end of the sliding seat are respectively in contact with the front-end reference base through springs. A push block is arranged at the rear side of the sliding seat. The rear end of the push rod is installed on the push block through a push rod baffle. The front end of the push rod moves along the front-rear direction in a third channel formed in the sliding seat. Clamping blocks are arranged on the left and right sides of the front end of the third channel on the sliding seat.

[0009] As a further improvement of the present utility model, the bottom plate unit sequentially includes a bottom plate and an adjustment plate from bottom to top. The fixture base is installed on the adjustment plate. A first adjustment bolt installed on a first adjustment seat is arranged on the left side of the bottom plate. The first adjustment bolt is threadedly connected to the right-side bottom plate. A second adjustment bolt installed on a second adjustment seat is arranged at the front end of the adjustment plate. The second adjustment bolt is threadedly connected to the rear-end adjustment plate.

[0010] As a further improvement of the present utility model, positioning pins are installed on both the left and right sides of the adjustment plate. The orientation holes on the fixture base are adapted to the positioning pins below, and then the fixture base and the adjustment plate below are locked together through quick-lock nuts and quick-lock covers.

[0011] As a further improvement of the present utility model, a vacuum joint is installed at the front end of the reference base.

[0012] As a further improvement of the present utility model, a reference cover plate is arranged above the clamping plate adjusting assembly, and the reference cover plate covers the reference base.

[0013] As a further improvement of the present utility model, the push block is connected to the front-end sliding seat through a plurality of guide shafts.

[0014] As a further improvement of the present utility model, the push block is in contact with the front-end sliding seat through a spring.

[0015] By means of the above solution, the present utility model has at least the following advantages:

[0016] Based on the automated assembly requirements of the earphone sound generating unit, the present utility model integrates functions such as product positioning, adsorption, clamping, and assembly. The mechanism design is compact, with diverse functions, high assembly efficiency, and high assembly accuracy.

[0017] The present utility model can achieve rapid switching to meet the requirements of different products, and can be widely applied to the automated assembly equipment of the earphone sound generating unit, providing more choices for the automated needs of the industry.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and be able to implement it according to the content of the description, the following will describe in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of a precision assembly jig for a headphone sound generating unit of the present utility model;

[0021] Figure 2 is Figure 1 a top view of

[0022] Figure 3 is Figure 1 an internal structural diagram of

[0023] Figure 4 is Figure 1 a schematic structural diagram of the jig assembly in

[0024] Figure 5 is Figure 1 a schematic structural diagram of the slide seat assembly in

[0025] Among them, the meanings of the reference numerals in the drawings are as follows.

[0026] Base plate 1, adjustment plate 2, jig base 3, jig assembly 4, slide seat assembly 5, first adjustment bolt 6, first adjustment seat 7, second adjustment bolt 8, second adjustment seat 9, quick lock nut 10, positioning pin 11, quick lock cover plate 12, reference seat 13, jig plate 14, vacuum joint 15, reference cover plate 16, clamping plate 17, clamping plate link 18, clamping plate link baffle 19, unlocking rod 20, unlocking rod handle 21, slide seat 22, push block 23, push rod 24, push rod baffle 25, guide shaft 26, clamping block 27. Detailed Description of the Preferred Embodiments

[0027] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0028] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0029] As Figures 1 to 5 shown, a precision assembly jig for a headphone sound generating unit includes a bottom plate unit and a jig unit. The jig unit is installed on the bottom plate unit. The jig unit includes a jig assembly 4, and the jig assembly 4 includes a jig base 3, a reference base 13, and a jig plate 14.

[0030] 1. The bottom plate unit sequentially includes a bottom plate 1 and an adjustment plate 2 from bottom to top. The jig base 3 is installed on the adjustment plate 2. A first adjustment bolt 6 installed on a first adjustment seat 7 is provided on the left side of the bottom plate 1, and the first adjustment bolt 6 is threadedly connected to the right-side bottom plate 1. A second adjustment bolt 8 installed on a second adjustment seat 9 is provided at the front end of the adjustment plate 2, and the second adjustment bolt 8 is threadedly connected to the rear-end adjustment plate 2.

[0031] Positioning pins 11 are installed on both the left and right sides of the adjustment plate 2. The orientation holes on the jig base 3 are adapted to the positioning pins 11 below, and then the jig base 3 and the adjustment plate 2 below are locked together by a quick-lock nut 10 and a quick-lock cover plate 12.

[0032] The first adjustment bolt 6 is connected to the first adjustment seat 7 and then threadedly connected to the bottom plate 1. The second adjustment bolt 8 is connected to the second adjustment seat 9, and then the second adjustment seat 9 is fixed to the bottom plate 1 by an inner hexagon bolt. After that, the second adjustment bolt 8 is threadedly connected to the adjustment plate 2, and finally the adjustment plate 2 is connected to the bottom plate 1 by an inner hexagon bolt. The above bottom plate unit is used for the alignment adjustment of the jig and an external mechanism.

[0033] 2. The reference base 13 is installed at the front end on the fixture base 3. A fixture plate 14 is installed in the middle of the reference base 13, and a vacuum joint 15 is installed at the front end of the reference base 13. Clamping plate adjusting components are arranged on both the left and right sides of the fixture plate 14. Above the clamping plate adjusting components, there is a reference cover plate 16 which covers the reference base 13. The clamping plate adjusting component includes a clamping plate 17, a clamping plate connecting rod 18, and an unlocking rod 20. The clamping plate connecting rod 18 is installed in the first channel on the reference base 13 along the left-right direction, and the unlocking rod 20 is installed in the second channel on the reference base 13 along the front-back direction. The first side of the clamping plate connecting rod 18 extends to the fixture plate 14 and is provided with the clamping plate 17. The second side of the clamping plate connecting rod 18 contacts the clamping plate connecting rod baffle 19 installed on the reference base 13 through a spring. The first side of the unlocking rod 20 is hooked to the clamping plate connecting rod 18, and the second side of the unlocking rod 20 is provided with an unlocking rod handle 21, and the unlocking rod handle 21 contacts the rear side of the reference base 13 through a spring.

[0034] 3. The fixture unit further includes a slide base assembly 5. The slide base assembly 5 includes a slide base 22 and a push rod 24. A chute distributed along the front-back direction is opened on the fixture base 3 at the rear end of the reference base 13. The slide base 22 is installed in the chute along the front-back direction. The left and right sides at the front end of the slide base 22 respectively contact the front-end reference base 13 through springs. A push block 23 is arranged at the rear side of the slide base 22. The rear end of the push rod 24 is installed on the push block 23 through a push rod baffle 25. The front end of the push rod 24 moves along the front-back direction in the third channel opened on the slide base 22. Clamping blocks 27 are arranged on both the left and right sides at the front end of the third channel on the slide base 22.

[0035] Among them, the push block 23 is connected to the front-end slide base 22 through a plurality of guide shafts 26. The push block 23 contacts the front-end slide base 22 through a spring.

[0036] Two positioning pins 11 are placed into the corresponding positioning holes of the adjustment plate, and then fixed from the back using socket head cap screws. The fixture base 3 is connected to the lower adjustment plate 2 through the two positioning pins 11. The slide base 22 is placed into the chute of the fixture base 3. The quick-lock cover plate 12 is connected to the fixture base 3 through socket head cap screws, and then the quick-lock nut 10 is threadedly connected to the positioning pin 11 to fix the fixture base 3 and the adjustment plate 2. A slide base limit baffle for limiting the slide base 22 is installed on the fixture base 3 at the rear end of the slide base 22. Springs are placed into the spring holes on the left and right sides at the front end of the slide base 22. The guide shafts 26 are connected to the push block 23, and then the guide shafts 26 are connected to the slide base 22. The push rod 24 is connected to the push block 23 through the push rod baffle 25, and a slide base cover plate is covered on the slide base 22 above the push rod 24. Springs are placed into the spring holes on one side at the rear end of the slide base 22. The reference base 13 is connected to the fixture base 3, the fixture plate 14 is connected to the reference base 13, and the two clamping plates 17 on the left and right are respectively placed into the chutes of the reference base 13.

[0037] The spring is placed into the spring holes on the left and right sides at the rear end of the reference base 13. The two unlocking levers 20 on the left and right are respectively placed into the second channels of the reference base 13 and are connected to the clamping plate linkages 18 on the left and right. Then, the spring holes of the clamping plate linkages 18 are placed with springs. After that, the clamping plate link baffle 19 is connected to the reference base 13. Then, the reference cover plate 16 and the reference base 13 are connected by an internal hexagonal nut. Finally, the vacuum joint 15 is connected to the reference base 13.

[0038] The working principle of the present utility model:

[0039] When the sound generating unit part - the vibration motor is placed into the fixture slot of the fixture plate 14, the vacuum is turned on to suck the product. Then, the external device retracts. The two clamping plates 17 on the left and right, under the action of the internal springs, clamp and fix the product. At this time, the external telescopic mechanism on the other side (i.e., the slide base assembly 5) compresses the slide base 22 to tightly adhere to the reference base 13. Then, the compressed slide base 22 and the push block 23 push the sound generating unit part - the yellow piece into the vibration motor installation position for fixation. The slide base 22 and the push block 23 retract, and the parts are assembled. The assembly accuracy can reach ±0.005 mm.

[0040] Based on the requirement for the automated assembly of the headphone sound generating unit, it integrates functions such as product positioning, adsorption, clamping, and assembly. The mechanism design is compact, with diverse functions, high assembly efficiency, and high assembly accuracy. It can achieve rapid switching to meet the requirements of different products and can be widely applied in the automated assembly equipment for headphone sound generating units, providing more choices for the automated needs of the industry.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A precision assembly jig for an earphone sound unit, comprising a base unit and a jig unit, wherein the jig unit is mounted on the base unit, the jig unit comprises a jig assembly (4), and the jig assembly (4) comprises a jig base (3), a reference seat (13) and a jig plate (14); characterized in that: The reference seat (13) is mounted on the front end of the fixture base (3); a fixture plate (14) is mounted in the middle of the reference seat (13); a clamping plate adjustment assembly is arranged on both the left and right sides of the fixture plate (14); the clamping plate adjustment assembly comprises a clamping plate (17), a clamping plate connecting rod (18) and an unlocking rod (20); the clamping plate connecting rod (18) is mounted in the first channel of the reference seat (13) along the left-right direction; the unlocking rod (20) is mounted on the reference seat (13) along the front-back direction. In the second channel on the fixture plate (14), the first side of the clamping plate connecting rod (18) extends to the fixture plate (14) and is provided with a clamping plate (17), the second side of the clamping plate connecting rod (18) is in contact with a clamping plate connecting rod baffle (19) installed on the reference seat (13) through a spring, the first side of the unlocking rod (20) is hooked with the clamping plate connecting rod (18), the second side of the unlocking rod (20) is provided with an unlocking rod handle (21), and the unlocking rod handle (21) is in contact with the rear side of the reference seat (13) through a spring; The jig unit also includes a slide assembly (5), the slide assembly (5) including a slide (22) and a push rod (24), a slide groove distributed along the front-to-back direction is opened on the jig base (3) at the rear end of the reference seat (13), the slide (22) is installed in the slide groove along the front-to-back direction, the left and right sides of the front end of the slide (22) are respectively in contact with the front end reference seat (13) through springs, a push block (23) is arranged on the rear side of the slide (22), the rear end of the push rod (24) is installed on the push block (23) through a push rod baffle (25), the front end of the push rod (24) moves along the front-to-back direction in a third channel opened on the slide (22), and clamping blocks (27) are arranged on the slide (22) on the left and right sides of the front end of the third channel.

2. The headphone sound unit precision assembly jig according to claim 1, characterized in that: The base plate unit comprises, from bottom to top, a base plate (1) and an adjustment plate (2), the fixture base (3) being mounted on the adjustment plate (2), a first adjustment bolt (6) mounted on a first adjustment seat (7) being arranged on the left side of the base plate (1), the first adjustment bolt (6) being threadedly connected to the base plate (1) on the right side, a second adjustment bolt (8) being mounted on a second adjustment seat (9) being arranged at the front end of the adjustment plate (2), the second adjustment bolt (8) being threadedly connected to the adjustment plate (2) at the rear end.

3. The headphone sound unit precision assembly jig according to claim 2, characterized in that: Positioning pins (11) are installed on both the left and right sides of the adjustment plate (2); the directional holes on the fixture base (3) are matched with the positioning pins (11) below, and the fixture base (3) and the adjustment plate (2) below are locked together by a quick-lock nut (10) and a quick-lock cover plate (12).

4. The headphone sound unit precision assembly jig according to claim 1, characterized in that: A vacuum connector (15) is installed at the front end of the reference seat (13).

5. The headphone sound unit precision assembly jig according to claim 1, characterized in that: A reference cover plate (16) is arranged above the clamp plate adjustment assembly, and the reference cover plate (16) covers the reference seat (13).

6. The headphone sound unit precision assembly jig according to claim 1, characterized in that: The push block (23) is connected to the front end slide seat (22) via a plurality of guide shafts (26).

7. The headphone sound unit precision assembly jig according to claim 1, characterized in that: The push block (23) contacts the slide seat (22) at the front end via a spring.

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