Assembly tooling for earphone shells and assembly method for earphone shells

Abstract

The present invention discloses an assembly tooling for a headphone shell and an assembly method for a headphone shell. The assembly tooling for the headphone shell includes a base body, a fixing fixture, a pressing mechanism and an adjusting mechanism provided on the base body. The fixing fixture is used to fix the bottom shell, and the face shell is pre-fixed above the bottom shell. The pressing mechanism is disposed above the fixing fixture in a liftable manner, and the pressing mechanism is used to fix and press the face shell. The adjusting mechanism moves the face shell and the fixing fixture in sequence to align the face shell and the bottom shell. The technical solution of the present invention aims to improve the assembly efficiency and assembly accuracy of the headphone shell.

Description

Technical Field

[0001] The present invention relates to the technical field of headphone assembly equipment, and particularly to an assembly tool for a headphone shell and an assembly method for a headphone shell. Background Art

[0002] The headphone housing includes a bottom shell and a face shell. During assembly, the bottom shell and the face shell need to be aligned and then pressed tightly to achieve the assembly and fixation of the two. The outer shells of TWS headphones have various shapes and small volumes, which increases the difficulty of assembling the headphone shells. During the alignment process of the bottom shell and the face shell, a step difference is likely to occur, resulting in a non-smooth transition at the joint between the two, which not only affects the feel but also accumulates dirt such as dust during the use of the headphones, affecting the user experience.

[0003] In the existing solutions, both the face shell and the bottom shell are manually adjusted for the step difference by operators during assembly. This method not only has low adjustment efficiency but also unreliable adjustment effects, affecting the assembly efficiency and assembly accuracy of the headphone shells. Summary of the Invention

[0004] The main purpose of the present invention is to provide an assembly tool for a headphone shell, aiming to improve the assembly efficiency and assembly accuracy of the headphone shell.

[0005] To achieve the above object, the assembly tool for a headphone shell proposed by the present invention includes:

[0006] A base body;

[0007] A fixing fixture, arranged on the base body, and the fixing fixture is used to fix the bottom shell, and the face shell is pre-fixed above the bottom shell;

[0008] A pressing mechanism, which is arranged above the fixing fixture in a liftable manner, and the pressing mechanism is used to fix and press the face shell; and

[0009] An adjusting mechanism, arranged on the base body, and the adjusting mechanism moves the face shell and the fixing fixture in sequence to align the face shell and the bottom shell.

[0010] In an embodiment of the present invention, the assembly tool for a headphone shell further includes a detection mechanism. The adjusting mechanism includes a first adjusting component and a second adjusting component both arranged on the base body, and the second adjusting component is connected to the fixing fixture;

[0011] The first adjusting component drives the face shell to move to preliminarily align the face shell and the bottom shell. The detection mechanism is used to detect the step difference value on the side of the headphone shell after preliminary alignment. The second adjusting component drives the fixing fixture to move to drive the bottom shell to move relative to the face shell to further align the face shell and the bottom shell.

[0012] In an embodiment of the present invention, the first adjusting component includes:

[0013] A first driving structure, arranged on the base body; and

[0014] At least one pair of adjusting arms, the two adjusting arms are connected to opposite sides of the first driving structure, and an abutting portion is provided at one end of the adjusting arm away from the first driving structure;

[0015] The first driving structure drives the two adjusting arms to approach each other to move the front shell, so that the front shell and the bottom shell are initially aligned.

[0016] In an embodiment of the present invention, the first adjusting assembly includes two pairs of adjusting arms, and the four adjusting arms are evenly arranged along the first driving structure.

[0017] In an embodiment of the present invention, the adjusting arm includes:

[0018] A fixed section, one end of the fixed section is connected to the first driving structure, and the other end extends in a direction away from the first driving structure; and

[0019] An adjusting section, the adjusting section is connected to one end of the fixed section away from the first driving structure and is arranged at an angle with the fixed section. An abutting portion is provided at one end of the adjusting section away from the fixed section, and the abutting portion is adapted to at least part of the front shell.

[0020] In an embodiment of the present invention, the first driving structure includes:

[0021] A rotating shaft, the rotating shaft is rotatably connected to the seat body; and

[0022] A linear module, the linear module is connected to the rotating shaft, and each adjusting arm is drivingly connected to the linear module.

[0023] In an embodiment of the present invention, the detection mechanism includes:

[0024] At least one image acquisition unit, the central axis of the image acquisition unit is located on the plane at the connection of the front shell and the bottom shell, and the image acquisition unit respectively acquires the segment difference between the sides of the front shell and the bottom shell after initial alignment;

[0025] The second adjusting assembly includes at least one translation mechanism, the translation mechanism is arranged on the seat body and is connected to the fixed fixture, and the translation mechanism drives the bottom shell to move in a direction perpendicular to the central axis of the image acquisition unit through the fixed fixture.

[0026] In an embodiment of the present invention, the detection mechanism includes two image acquisition units, and the central axes of the two image acquisition units are perpendicular to each other;

[0027] The second adjusting assembly includes two translation mechanisms, and the moving directions of the two translation mechanisms are perpendicular to each other.

[0028] In an embodiment of the present invention, the pressing mechanism includes:

[0029] A lifting assembly, the lifting assembly is arranged on the seat body; and

[0030] The pressing component is connected to the lifting component, and the surface of the pressing component facing the fixed fixture is used to abut against the front shell.

[0031] The present invention also provides an assembling method for an earphone shell, including the following steps:

[0032] Fix the bottom shell on the fixed fixture;

[0033] Pre-fix the front shell on the bottom shell;

[0034] The adjusting mechanism moves relative to the seat body, sequentially moves the front shell and the fixed fixture, so that the front shell is aligned with the seat body.

[0035] In an embodiment of the present invention, in the step of the adjusting mechanism moving relative to the seat body, sequentially moving the front shell and the fixed fixture to align the front shell with the bottom shell, it includes:

[0036] Drive the first adjusting component to move relative to the seat body, so that the front shell and the bottom shell are initially aligned;

[0037] Detect the segment difference on the side of the earphone shell after initial alignment;

[0038] When the segment difference is greater than the threshold value, drive the pressing mechanism to descend to fix the front shell, and then drive the second adjusting component to drive the fixed fixture to move relative to the seat body, so that the bottom shell and the front shell are aligned;

[0039] Detect the segment difference on the side of the earphone shell again after alignment. When the segment difference is greater than the threshold value, repeatedly drive the second adjusting component to drive the fixed fixture to move relative to the seat body until the segment differences on both sides of the earphone shell are the same;

[0040] Drive the pressing mechanism to firmly press the front shell and the bottom shell together.

[0041] In the technical solution of the present invention, the assembling tooling for the earphone shell includes a seat body, a fixed fixture, a pressing mechanism and an adjusting mechanism. When assembling the earphone shell using this assembling tooling for the earphone shell, first fix the bottom shell on the fixed fixture to fix the bottom shell, and then place the front shell on the bottom shell to pre-fix the front shell. Then the adjusting mechanism first moves the front shell to make the front shell and the bottom shell initially aligned, and then the adjusting mechanism drives the fixed fixture to move, so that the bottom shell moves relative to the front shell to achieve further alignment of the bottom shell and the front shell. In the technical solution of the present invention, the relative positions of the front shell and the bottom shell are sequentially adjusted using the adjusting mechanism. Compared with the manual adjustment method in the existing solution, it can effectively improve the adjustment efficiency and adjustment accuracy, and improve the assembly efficiency and assembly accuracy of the earphone shell. Description of the Drawings

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0043] Figure 1 Schematic diagram of the structure of an assembly tooling for the earphone housing of the present invention in one embodiment;

[0044] Figure 2 For Figure 1 Schematic diagram of the structure of the first adjustment component in

[0045] Figure 3 Schematic diagram of the preliminary alignment during the assembly process of the earphone housing of the present invention;

[0046] Figure 4 Schematic diagram of the re - alignment after detection during the assembly process of the earphone housing of the present invention;

[0047] Figure 5 Schematic diagram of the detection of the detection mechanism in the assembly tooling for the earphone housing of the present invention;

[0048] Figure 6 Schematic diagram of the structure of an embodiment of the assembly method for the earphone housing of the present invention;

[0049] Figure 7 Schematic diagram of the structure of another embodiment of the assembly method for the earphone housing of the present invention.

[0050] Explanation of the reference numerals in the drawings:

[0051] Label Name Label Name 100 Assembly tooling for earphone housing 50 First adjustment component 1 Bottom shell 51 First driving structure 2 Face shell 511 Rotating shaft 10 Base body 513 Linear module 20 Fixing fixture 53 Adjusting arm 30 Pressing mechanism 531 Fixing section 31 Lifting component 533 Adjusting section 33 Pressing part 535 Abutting part 40 Image acquisition unit 60 Second adjustment component 61 Translation mechanism

[0052] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. Detailed implementation manners

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0055] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In addition, in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0057] The present invention provides an assembly tooling 100 for a headphone shell.

[0058] Referring to Figures 1 to 5 , in an embodiment of the present invention, the assembly tooling 100 for a headphone shell includes a base body 10, a fixing fixture 20, a pressing mechanism 30, and an adjusting mechanism (not marked in the figure), all of which are provided on the base body 10. The fixing fixture 20 is used to fix the bottom shell 1, and the face shell 2 is pre-fixed above the bottom shell 1; the pressing mechanism 30 is disposed above the fixing fixture 20 in a liftable manner, and the pressing mechanism 30 is used to fix and press the face shell 2; the adjusting mechanism is disposed on the base body 10, and the adjusting mechanism moves the face shell 2 and the fixing fixture 20 in sequence to align the face shell 2 and the bottom shell 1.

[0059] The base body 10 provides an installation carrier for the fixing fixture 20, the pressing mechanism 30, and the adjusting mechanism. The shape of the base body 10 is generally square. Of course, the shape of the base body 10 can also be other shapes, which are not limited herein.

[0060] In the technical solution of the present invention, the assembly tooling 100 for the earphone housing includes a base body 10, a fixing fixture 20, a pressing mechanism 30 and an adjusting mechanism. When assembling the earphone housing using the assembly tooling 100 for the earphone housing, first fix the bottom shell 1 on the fixing fixture 20 to fix the bottom shell 1, and then place the face shell 2 on the bottom shell 1 to pre-fix the face shell 2. Then the adjusting mechanism first moves the face shell 2 to initially align the face shell 2 and the bottom shell 1, and then the adjusting mechanism drives the fixing fixture 20 to move so that the bottom shell 1 moves relative to the face shell 2 to further align the bottom shell 1 and the face shell 2. In the technical solution of the present invention, the relative positions of the face shell 2 and the bottom shell 1 are adjusted in sequence using the adjusting mechanism. Compared with the manual adjustment method in the existing solution, in the technical solution of the present invention, the adjusting mechanism adjusts the positions of the face shell 2 and the bottom shell 1 separately in sequence, which can effectively improve the adjustment efficiency and adjustment accuracy, and improve the assembly efficiency and assembly accuracy of the earphone housing.

[0061] The fixing fixture 20 is provided with a fixing groove for accommodating the bottom shell 1. The shape of the fixing groove is adapted to the bottom shell 1. When the bottom shell 1 is fixed to the fixing fixture 20, its position will not move relative to the fixing fixture 20. When the face shell 2 is placed on the bottom shell 1, the bottom shell 1 supports and pre-fixes the face shell 2. At this time, the position gap between the face shell 2 and the bottom shell 1 is still relatively large. The pressing mechanism 30 can fix the face shell 2 during the alignment process of the face shell 2 and the bottom shell 1, so that the position of the face shell 2 will not move relative to the base body 10 when adjusting the position of the bottom shell 1. The pressing mechanism 30 is also used to press and fix the two after the bottom shell 1 and the face shell 2 are aligned to complete the assembly of the earphone housing.

[0062] Refer to Figures 1 to 5 , in an embodiment of the present invention, the assembly tooling 100 for the earphone housing further includes a detection mechanism. The adjusting mechanism includes a first adjusting component 50 and a second adjusting component 60 both provided on the base body 10, and the second adjusting component 60 is connected to the fixing fixture 20;

[0063] The first adjusting component 50 drives the face shell 2 to move to initially align the face shell 2 and the bottom shell 1. The detection mechanism is used to detect the segment difference of the earphone housing after the initial alignment. The second adjusting component 60 drives the fixing fixture 20 to move to drive the bottom shell 1 to move relative to the face shell 2 to further align the face shell 2 and the bottom shell 1.

[0064] In an embodiment of the present invention, the detection mechanism uses the image acquisition unit 40 as the detection unit, that is, the CCD image acquisition unit 40. The CCD image acquisition unit 40 takes pictures of the earphone housing to detect the segment difference on the side of the earphone housing after preliminary alignment. The shooting center of the CCD image acquisition unit 40 is the central axis of the CCD image acquisition unit 40, which is on the same plane as the connection between the bottom shell 1 and the surface shell 2 after preliminary alignment. At this time, the image acquisition unit 40 can take pictures of the side of the earphone housing to obtain the segment difference between the bottom shell 1 and the surface shell 2 after preliminary alignment, providing an accurate data basis for the direction and movement amount of the second adjustment component 60. In a possible embodiment, the central axis of the image acquisition unit 40 extends to the center of the earphone. At this time, one image acquisition unit 40 can simultaneously take pictures of the opposite side edges of the earphone housing, which can reduce the number of image acquisition units 40 and lower the cost. In another possible embodiment, the central axis of the image acquisition unit 40 extends to the side edge of the earphone. At this time, one image acquisition unit 40 can only take pictures of one side edge of the earphone housing. In this way, the directly collected segment difference can be compared with the threshold value to reduce the amount of data calculation and improve the efficiency.

[0065] By using the detection mechanism to replace the naked-eye observation of the operator, the detection accuracy is improved, providing a guarantee for improving the position accuracy of adjusting the bottom shell 1.

[0066] In this embodiment, by setting the adjustment mechanism as the first adjustment component 50 and the second adjustment component 60, the driving sources for adjusting the position of the surface shell 2 and the bottom shell 1 are separated, avoiding mutual influence between the two driving sources and affecting the adjustment accuracy.

[0067] Please refer to Figure 1 and Figure 2 , in an embodiment of the present invention, the first adjustment component 50 includes:

[0068] The first driving structure 51, which is arranged on the seat body 10; and

[0069] At least a pair of adjustment arms 53, two adjustment arms 53 are connected to the opposite sides of the first driving structure 51, and the end of the adjustment arm 53 far from the first driving structure 51 is provided with an abutting portion 535;

[0070] The first driving structure 51 drives the two adjustment arms 53 to approach each other to move the surface shell 2, so that the surface shell 2 is preliminarily aligned with the bottom shell 1.

[0071] In an embodiment of the present invention, the first driving structure 51 includes a linear module 513. The linear module 513 is used to drive the adjusting arm 53 to perform linear motion, so as to realize the approaching or separating motion of the adjusting arms 53. Among them, the linear module 513 can be a gear-rack structure, a slide rail-slider, a lead screw structure or a cylinder structure, etc. It can be understood that one linear module 513 can drive one adjusting arm 53 to move; in a possible embodiment, one linear module 513 can also drive two adjusting arms 53 to approach or separate simultaneously, so as to simplify the structure and save costs.

[0072] In one embodiment, the number of adjusting arms 53 can be two pairs, that is, there are four adjusting arms 53. The four adjusting arms 53 are evenly arranged at intervals along the circumferential direction of the first driving structure 51. The four adjusting arms 53 are linked simultaneously, which can make the adjusting arms 53 move the front shell 2 from four different directions at the same time, and can avoid the situation of offset caused by uneven force during the movement of the front shell 2, so as to improve the stability during the adjustment of the front shell 2.

[0073] In a possible embodiment, the number of adjusting arms 53 can also be three. When the number of adjusting arms 53 is three, the three adjusting arms 53 are arranged around the first driving structure 51. The three adjusting arms 53 can also move the front shell 2 in three different directions at the same time, avoiding the situation of offset caused by uneven force during the movement of the front shell 2, so as to improve the stability during the adjustment of the front shell 2. When the number of adjusting arms 53 is three, it can be a multi-claw cylinder.

[0074] In an embodiment of the present invention, the first driving structure 51 can be reasonably set according to the number of adjusting arms 53.

[0075] It can be understood that in addition to driving the adjusting arm 53 to perform linear motion relative to the seat body 10, the first driving structure 51 can also drive the adjusting arm 53 to perform rotational motion relative to the seat body 10. At this time, the first driving structure 51 further includes a rotating shaft 511. The rotating shaft 511 can drive the linear module 513 to rotate relative to the seat body 10 to make way for the detection mechanism to take pictures. In this way, the image acquisition unit 40 can take pictures of the position contacted by the adjusting arm 53 to improve the accuracy of image acquisition. It should be noted that the rotation angle of the rotating shaft 511 can be 20°, 30°, 40°, or 45°, etc., as long as the respective adjusting arms 53 after rotation do not block the photographing angle of the image acquisition unit 40. The rotation angle of the adjusting arm 53 is limited here.

[0076] Furthermore, the driving source of the rotating shaft 511 can be a cylinder or a motor, etc., as long as it can drive each adjusting arm 53 to move simultaneously to make way for the image acquisition unit 40 to take pictures. The driving source of the rotating shaft 511 is not limited here.

[0077] Please continue to refer to Figure 1 and Figure 2 In an embodiment of the present invention, the adjusting arm 53 includes:

[0078] A fixed section 531, one end of which is connected to the first driving structure 51, and the other end extends in a direction away from the first driving structure 51; and

[0079] An adjusting section 533, the adjusting section 533 is connected to one end of the fixed section 531 away from the driving structure and is arranged at an angle with the fixed section 531. An abutting portion 535 is provided at one end of the adjusting section 533 away from the fixed section 531, and the abutting portion 535 is adapted to at least part of the surface shell 2.

[0080] In the technical solution of an embodiment of the invention, the end of the fixed section 531 is in transmission connection with the first driving structure 51 to ensure that the first driving structure 51 can drive the adjusting arm 53 to move. The fixed section 531 and the adjusting section 533 can be an integral structure to improve the structural strength of the adjusting arm 53; setting the adjusting arm 53 as an integral structure can also reduce the number of parts of the adjusting arm 53 and reduce the assembly workload of the adjusting arm 53. The adjusting arm 53 can be made of metal to improve the structural strength of the adjusting arm 53; the adjusting arm 53 can also be made of plastic to reduce the material cost. The angle between the fixed section 531 and the adjusting section 533 can be a right angle; for example, if the fixed section 531 extends in the vertical direction, the adjusting section 533 extends in the horizontal direction. In this way, the adjusting arm 53 is generally L-shaped to ensure that the abutting portion 535 can abut against the surface shell 2 to adjust the position of the surface shell 2.

[0081] In an embodiment of the present invention, the shape of the abutting portion 535 is an arc groove recessed on the surface of the adjusting section 533. The contour of the arc groove is designed to be similar to the outer contour of the earphone shell. When the adjusting arms 53 move closer to each other, the abutting portion 535 can abut against the bottom shell 1 in addition to abutting against the surface shell 2. During the abutting process, the position of the bottom shell 1 does not move, and only the surface shell 2 moves relative to the bottom shell 1 to preliminarily align the surface shell 2 and the bottom shell 1.

[0082] Further, please refer to Figure 5 In an embodiment of the present invention, the detection mechanism includes:

[0083] At least one image acquisition unit 40, the central axis of the image acquisition unit 40 is located on the plane at the connection of the surface shell 2 and the bottom shell 1, and the image acquisition unit 40 respectively acquires the segment differences on the opposite sides of the surface shell 2 and the bottom shell 1 after preliminary alignment;

[0084] The second adjustment component 60 includes at least one translation mechanism 61. The translation mechanism 61 is disposed on the base 10 and is connected to the fixing fixture 20. The translation mechanism 61 drives the bottom shell 1 to move in a direction perpendicular to the central axis of the image acquisition unit 40 through the fixing fixture 20.

[0085] In the technical solution of an embodiment of the present invention, the detection mechanism is used to detect the segment difference between the headphone shells after preliminary processing. Among them, there are various detection methods. For example, it can be through visual detection, or through a ranging sensor, or through a position sensor, etc. Corresponding detection unit components should be set in the detection mechanism for different detection methods, as long as the segment difference between the headphone shells after preliminary processing can be detected. The detection method of the detection mechanism is not limited here.

[0086] Hereinafter, this solution will be introduced in detail taking the visual method of the detection mechanism as an example:

[0087] In an embodiment of the invention, the image acquisition unit 40 is a CCD image acquisition unit 40. The image acquisition unit 40 takes pictures of the headphone shells to detect the segment difference between the opposite sides of the headphone shells after preliminary alignment. Among them, the shooting center of the image acquisition unit 40 is the central axis of the image acquisition unit 40, which is in the same plane as the connection between the bottom shell 1 and the face shell 2 after preliminary alignment. In this way, the accuracy of the acquired image of the image acquisition unit 40 can be improved. It can be understood that the central axis of the image acquisition unit 40 passes through the center of the bottom shell 1. At this time, the image acquisition unit 40 can acquire the opposite sides of the headphone shell, so as to obtain a relatively high segment difference between the edge of the face shell 2 and the edge of the bottom shell 1, providing an accurate data basis for the moving direction and moving amount of the second adjustment component 60. In the technical solution of this embodiment, by using the image acquisition unit 40 to replace the naked-eye observation of the operator, the accuracy of segment difference detection is improved, providing a guarantee for improving the position accuracy of adjusting the bottom shell 1.

[0088] It should be noted that the adjustment direction of the second adjustment component 60 is perpendicular to the central axis of the image acquisition unit 40. In this way, according to the detected segment difference between the sides of the headphone shell, the second adjustment component 60 directly drives the fixing fixture 20 to translate by half of the segment difference along the connection line between the two sides.

[0089] For example, referring to Figure 4, according to the acquired image, it is determined that the segment difference on the left side of the earphone shell is 0, and the segment difference on the right side of the earphone shell is 0.6 mm. At this time, the second adjustment component 60 directly drives the fixed fixture 20 to drive the bottom shell 1 to translate 0.3 mm to the left side. At this time, the segment differences between each position of the face shell 2 and the bottom shell 1 are the same, realizing the alignment of the face shell 2 and the bottom shell 1. By setting the moving direction of the second adjustment component 60 to be perpendicular to the central axis of the image acquisition unit 40, the adjustment steps of the second adjustment component 60 are simplified, and the convenience of adjustment is improved.

[0090] It can be understood that there can be only one image acquisition unit 40. When there is only one image acquisition unit 40, only the segment differences on the relative two sides of the earphone shell can be detected. When there are multiple image acquisition units 40, the segment differences at multiple positions in the circumferential direction of the earphone shell can be detected. For example, when two image acquisition units 40 are set at the same time, the central axes of the two image acquisition units 40 are perpendicular to each other. In this way, the two image acquisition units 40 can simultaneously detect the segment differences at four positions in the circumferential direction of the earphone shell; correspondingly, the second adjustment component 60 also includes two translation mechanisms 61, and the moving directions of the two translation mechanisms 61 are perpendicular to each other. In this way, the two translation mechanisms 61 can adjust the segment values in four directions in the circumferential direction of the earphone shell to ensure the overall segment difference adjustment effect of the earphone shell.

[0091] Refer to Figure 1 , in an embodiment of the present invention, the pressing mechanism 30 includes:

[0092] A lifting component 31, the lifting component 31 is arranged on the seat body 10; and

[0093] A pressing member 33, the pressing member 33 is connected to the lifting component 31, and the surface of the pressing member 33 facing the fixed fixture 20 is used to abut against the face shell 2.

[0094] In an embodiment of the present invention, the lifting component 31 can be a cylinder or a lead screw, etc. The lifting component 31 serves as the driving source of the pressing mechanism 30 to drive the pressing member 33 to move up and down relative to the fixed fixture 20, as long as it can drive the pressing member 33 to move up or down relative to the fixed fixture 20. The structure and type of the lifting component 31 are not limited here. The shape of the pressing member 33 can be square. When the pressing member 33 is driven to abut against the face shell 2 and fix the face shell 2, at this time, the pressure applied by the pressing member 33 to the face shell 2 only restricts the face shell 2 from moving with the bottom shell 1 during the movement of the bottom shell 1 driven by the fixed fixture 20, so as to ensure that the second adjustment component 60 only adjusts the position of the bottom shell 1.

[0095] The pressing member 33 can also be configured to be shaped like the front shell 2. When the pressing member 33 is driven to abut against the front shell 2 and fix the front shell 2, at this time, the pressing member 33 is also provided with negative pressure adsorption holes. At this time, the method of using negative pressure adsorption fixation can be used to replace the method of applying pressure to the front shell 2 to fix the front shell 2.

[0096] After the position adjustment of the bottom shell 1 is completed, the lifting assembly 31 drives the pressing member 33 to apply a greater pressure to the face cover to fix the face cover and the bottom shell 1 to complete the assembly of the earphone shell.

[0097] Please refer to Figure 6 , the invention also provides an assembly method of an earphone shell, including the following steps:

[0098] S10: Fix the bottom shell 1 on the fixing fixture 20;

[0099] S20: Pre-fix the front shell 2 on the bottom shell 1;

[0100] S30: The adjusting mechanism moves relative to the base body 10, sequentially moves the front shell 2 and the fixing fixture 20, so that the front shell 2 is aligned with the base body 10.

[0101] In an embodiment of the present invention, in step S10, when the bottom shell 1 is fixed on the fixing fixture 20, the bottom shell 1 can be placed in the fixing groove on the fixing fixture 20 by a manipulator or manually. The shape of the fixing groove is adapted to the bottom shell 1. When the bottom shell 1 is fixed to the fixing fixture 20, the position of the bottom shell 1 will not move relative to the fixing fixture 20.

[0102] In step S20, the front shell 2 can be placed above the bottom shell 1 manually or by a manipulator. The bottom shell 1 supports and pre-fixes the front shell 2. At this time, the position gap between the front shell 2 and the bottom shell 1 is still relatively large.

[0103] In step S30, by controlling the adjusting mechanism to move relative to the base body 10, the adjusting mechanism sequentially moves the front shell 2 and the fixing fixture 20, so that the front shell 2 is aligned with the base body 10. Among them, the adjusting mechanism includes a first adjusting component 50 and a second adjusting component 60 that are independently arranged. By setting the adjusting mechanism as the first adjusting component 50 and the second adjusting component 60, the driving sources for adjusting the position of the front shell 2 and the bottom shell 1 are separated, avoiding mutual influence between the two driving sources and affecting the adjustment accuracy.

[0104] In step 30, it also includes step S31. In step S31, first drive the first adjusting component 50 to move relative to the base body 10, so that the front shell 2 and the bottom shell 1 are initially aligned. At this time, the adjusting arm 53 abuts against the front shell 2 to make the position of the front shell 2 move and make it initially aligned with the bottom shell 1.

[0105] Further, please refer to Figure 7 In step S32, the segment difference on the side of the earphone shell after preliminary alignment is detected by a detection mechanism. In this step, the detection mechanism is the image acquisition unit 40, and the number of image acquisition units 40 can be one or multiple. When two image acquisition units 40 are used, the central axes of the two image acquisition units 40 are perpendicularly arranged to ensure the detection of multiple positions in the circumferential direction of the earphone shell and improve the detection accuracy. It provides a basis for the adjustment of the second adjustment component 60 in the subsequent steps.

[0106] In step S33: when the segment difference is greater than the threshold value, the pressing mechanism 30 is driven to descend to fix the front shell 2, and then the second adjustment component 60 is driven to drive the fixing fixture 20 to move relative to the base body 10 so that the bottom shell 1 and the front shell 2 are aligned.

[0107] Further, in step S32, the threshold value can be a preset value or can be obtained by calculation after measurement, and the threshold value is not limited here.

[0108] The optimal alignment between the bottom shell 1 and the front shell 2 is that the edges of the bottom shell 1 and the front shell 2 are both aligned, that is, the edge dimensions at the connection of the bottom shell 1 and the front shell 2 are the same. However, due to the existence of tolerances in the processing and forming of the bottom shell 1 and the front shell 2, when the edge dimensions at the connection of the bottom shell 1 and the front shell 2 are different due to processing tolerances, at this time, the alignment between the bottom shell 1 and the front shell 2 means that the segment differences at each position at the connection of the bottom shell 1 and the front shell 2 are the same, which can also be regarded as the alignment of the bottom shell 1 and the front shell 2. For example, Figure 4 In [example], however, due to the tolerance in the processing and forming of the bottom shell 1 and the front shell 2, the outer diameter of the front shell 2 is 0.6 mm smaller than the outer diameter of the bottom shell 1. At this time, when the center of the front shell 2 is aligned with the center of the bottom shell 1, the segment difference at each position in the circumferential direction is 0.3 mm, which is also regarded as the alignment of the bottom shell 1 and the front shell 2.

[0109] According to the image obtained by photographing and collecting, the segment difference is obtained. Among them, when determining the segment difference, one of the front shell 2 and the bottom shell 1 is used as a reference. For example, please refer to Figure 4 the left schematic diagram in [example]. According to the collected image, with the bottom shell 1 as a reference, in the left side of the earphone shell, the outer contours of the front shell 2 and the bottom shell 1 are already aligned, and the segment difference D1 is equal to 0; in the right side of the earphone shell, the outer contour of the front shell 2 is reduced by 0.6 mm inward compared with the outer contour of the bottom shell 1. At this time, the segment difference D2 on the right side of the earphone shell is equal to 0.6 mm. At this time, the maximum segment difference of the earphone shell is 0.6 mm. At this time, the second adjustment component 60 directly drives the fixing fixture 20 to drive the bottom shell 1 to translate 0.3 mm to the left side. Please refer to Figure 4 the left schematic diagram in [example]. After moving the fixing fixture 20, the segment differences D1 and D2 on both sides of the earphone shell are made equal, realizing the alignment of the front shell 2 and the bottom shell 1.

[0110] Understandably, in step S33, when the driving pressing mechanism 30 descends to fix the front shell 2 and the pressing member 33 is driven to abut against the front shell 2 and fix the front shell 2, at this time, the pressure applied by the pressing member 33 to the front shell 2 only restricts the front shell 2 from moving with the bottom shell 1 during the process of the fixing fixture 20 driving the bottom shell 1 to move, so as to ensure that the second adjusting assembly 60 only adjusts the position of the bottom shell 1. After the position adjustment of the bottom shell 1 is completed and the alignment of the earphone shell is achieved, the lifting assembly 31 drives the pressing member 33 to apply a greater pressure to the face cover to fix the face cover and the bottom shell 1, so as to complete the assembly of the earphone shell.

[0111] In step S34, the segment difference on the side of the earphone shell after alignment is detected again. When the segment difference is greater than the threshold value, the second adjusting assembly is repeatedly driven to drive the fixing fixture to move relative to the seat body until the segment differences on both sides of the earphone shell are the same. Understandably, the step of the detection mechanism detecting the segment difference on the side of the aligned earphone shell can be performed multiple times, and the range of the segment difference is judged after each detection result. When the segment differences on both sides of the earphone shell are the same, the second adjusting assembly stops the adjustment step. When the detected segment difference is greater than the threshold value, the step of repeatedly driving the second adjusting assembly 60 to drive the fixing fixture 20 to move relative to the seat body 10 is performed until the segment differences on both sides of the earphone shell are the same, so as to ensure the alignment accuracy of the earphone shell.

[0112] After ensuring the alignment of the earphone shell, step S35 is executed. In step S35, the pressure applied by the pressing mechanism to the front shell is greater than that in step S33. In this way, the face cover and the bottom shell 1 can be firmly pressed together to achieve their fixation, thus completing the assembly of the earphone shell.

[0113] The above is only the preferred embodiment of the present invention, and does not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An assembly tool for a headphone shell, characterized in that, Comprising: A seat body; A fixing jig, provided on the seat body, the fixing jig being used for fixing the bottom shell, and the front shell being pre-fixed above the bottom shell; A pressing mechanism, the pressing mechanism being vertically movably provided above the fixing jig, the pressing mechanism being used for fixing and pressing the front shell; And An adjusting mechanism, the adjusting mechanism being provided on the seat body, the adjusting mechanism sequentially moving the front shell and the fixing jig to align the front shell and the bottom shell; The assembly tooling for the earphone shell further includes a detection mechanism, the adjusting mechanism includes a first adjusting component and a second adjusting component both provided on the seat body, and the second adjusting component is connected to the fixing jig; The first adjusting component drives the front shell to move to preliminarily align the front shell and the bottom shell, the detection mechanism is used for detecting the segment difference on the side of the earphone shell after preliminary alignment, and the second adjusting component drives the fixing jig to move to drive the bottom shell to move relative to the front shell to further align the front shell and the bottom shell.

2. The assembly tooling for the earphone housing according to claim 1, characterized in that, The first adjusting component includes: A first driving structure, provided on the seat body; and At least a pair of adjusting arms, the two adjusting arms being connected to opposite sides of the first driving structure, and an abutting portion being provided at one end of the adjusting arm away from the first driving structure; The first driving structure drives the two adjusting arms to approach each other to move the front shell to preliminarily align the front shell and the bottom shell.

3. The assembling tooling for the earphone shell according to claim 2, characterized in that, The first adjusting component includes two pairs of adjusting arms, and the four adjusting arms are evenly arranged along the first driving structure.

4. The assembly tooling for the earphone housing according to claim 2, characterized in that, The adjusting arm includes: A fixed section, one end of the fixed section being connected to the first driving structure, and the other end extending in a direction away from the first driving structure; and An adjusting section, the adjusting section being connected to one end of the fixed section away from the first driving structure and being arranged at an angle with the fixed section, an abutting portion being provided at one end of the adjusting section away from the fixed section, and the abutting portion being adapted to at least part of the front shell.

5. The assembly tooling for the earphone housing according to claim 2, characterized in that, The first driving structure includes: A rotating shaft, the rotating shaft being rotatably connected to the seat body; and A linear module, the linear module being connected to the rotating shaft, and each adjusting arm being drivingly connected to the linear module.

6. The assembly tooling for the earphone housing according to any one of claims 1 to 5, characterized in that, The detection mechanism includes: At least one image acquisition unit, the central axis of the image acquisition unit being located on the plane where the front shell and the bottom shell are connected, and the image acquisition unit respectively acquiring the segment difference on the side of the front shell and the bottom shell after preliminary alignment; The second adjusting component includes at least one translation mechanism, the translation mechanism being provided on the seat body and connected to the fixing jig, and the translation mechanism drives the bottom shell to move in a direction perpendicular to the central axis of the image acquisition unit through the fixing jig.

7. The assembly tooling for the earphone housing according to claim 6, characterized in that, The detection mechanism includes two image acquisition units, and the central axes of the two image acquisition units are perpendicular to each other; The second adjusting component includes two translation mechanisms, and the moving directions of the two translation mechanisms are perpendicular to each other.

8. The assembly tooling for the earphone housing according to claim 6, characterized in that, The pressing mechanism includes: A lifting component, the lifting component being provided on the seat body; and The pressing member is connected to the lifting assembly, and the surface of the pressing member facing the fixed fixture is used to abut against the front shell.

9. A method for assembling a headphone shell, wherein the method for assembling the headphone shell adopts the assembly tooling for the headphone shell according to any one of claims 1 to 8, and is characterized in that The assembling method of the earphone shell includes the following steps: Fix the bottom shell on the fixed fixture; Pre-fix the front shell on the bottom shell; The adjusting mechanism moves relative to the seat body, and sequentially moves the front shell and the fixed fixture to align the front shell with the seat body; In the step where the adjusting mechanism moves relative to the seat body and sequentially moves the front shell and the fixed fixture to align the front shell with the bottom shell, it includes: Drive the first adjusting component to move relative to the seat body so that the front shell and the bottom shell are initially aligned; Detect the segment difference on the side of the earphone shell after initial alignment; When the segment difference is greater than the threshold value, drive the pressing mechanism to descend to fix the front shell, and then drive the second adjusting component to drive the fixed fixture to move relative to the seat body so that the bottom shell and the front shell are aligned.

10. The assembling method of the earphone shell according to claim 9, characterized in that In the step where the adjusting mechanism moves relative to the seat body and sequentially moves the front shell and the fixed fixture to align the front shell with the bottom shell, it further includes: Detect the segment difference on the side of the earphone shell again after alignment. When the segment difference is greater than the threshold value, repeatedly drive the second adjusting component to drive the fixed fixture to move relative to the seat body until the segment differences on both sides of the earphone shell are the same; Drive the pressing mechanism to firmly press the front shell and the bottom shell together.

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