Headset metal component heat treatment jig

Abstract

The utility model discloses an earphone metal component heat treatment jig which comprises a flat heat treatment substrate, a metal component placement groove formed in the heat treatment substrate in an up-down penetrating mode, and a metal component supporting plate connected to the lower side of the heat treatment substrate and matched with the metal component placement groove. The shape of the metal component placement groove is matched with that of an earphone metal component to be subjected to heat treatment, and the metal component supporting plate is used for supporting the two ends, protruding out of the surface of the heat treatment substrate, of the earphone metal component after the earphone metal component is placed in the metal component placement groove. The heat treatment jig is designed according to the processing requirements of the earphone metal component, so that the stable arrangement and shape maintenance of the earphone metal component in the heat treatment process are ensured, and the processing and shaping effect of the earphone metal component in the heat treatment process is improved.

Description

Technical Field

[0001] The utility model relates to a heat treatment jig, in particular to a heat treatment jig for earphone metal components, which is mainly used in the heat treatment processing technology of metal elastic connecting structural parts of ear clip type earphones. Background Art

[0002] Ear clip earphones are a new type of Bluetooth earphones that have emerged in recent years. The earphones are designed as a clip-on structure, which can be clamped on the auricle when used and are not easy to fall off. Compared with the additional ear-hanging structure of traditional ear-hook earphones, they are smaller in size and more convenient to store and carry; compared with traditional in-ear earphones that use the ear hole to squeeze and fix, their clamping method is more stable and is difficult to fall off even when the user makes a large movement.

[0003] The clamping structure of ear clip headphones generally consists of two end parts and a middle connecting part. The two end parts have built-in electronic components that realize the basic functions of the headphones, and at the same time form a clamping effect inside and outside the auricle to ensure the stability of wearing. The middle connecting part connects the two end parts into one, has a certain degree of elasticity, is convenient for wearing and removing, and maintains the clamping degree of the two end parts on the auricle when worn.

[0004] The middle connector of the existing middle-ear clip-on earphone is generally made of plastic and is integrally injection molded with the shell of the two end parts, and the plastic material itself is used to achieve clamping. The main disadvantage is that it is not durable and easy to be damaged. Once the elasticity of the middle connector is reduced or broken, the earphone cannot be used. Some middle connectors are also added with metal bent parts in the middle of the plastic middle connector to increase the service life. This method increases the difficulty of earphone processing and assembly. At the same time, the plastic shell part at the end of the metal bent part is also easy to be damaged due to the lack of local structural support.

[0005] The inventor provides a solution for making an intermediate connector of an ear clip-on earphone using metal material. The metal material is a memory alloy, which has special properties such as shape memory effect and superelasticity. The intermediate connector made of the earphone not only ensures sufficient elasticity but also greatly improves the service life of the earphone product. Figure 1 The figure shows the shape of the intermediate connector made of metal material. The curved part in the middle can maintain the overall shape of the earphone and provide appropriate clamping force by combining the material properties. The connecting parts designed at both ends can be effectively combined with the shells of the components at both ends to ensure the stability of the connection. In the processing technology of this type of intermediate connector, a heat treatment process is required to shape the product. In order to maintain the curved shape of the product during the heat treatment process, the utility model designs a heat treatment fixture. Utility Model Content

[0006] The utility model provides a heat treatment jig for an earphone metal component, which is used for maintaining the bent shape of the earphone metal component in a heat treatment process, so as to facilitate shaping of the earphone metal component after the heat treatment.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A heat treatment jig for earphone metal components comprises a flat heat treatment substrate, a metal component placement groove which runs through the heat treatment substrate from top to bottom, a metal component support plate which is connected to the lower side of the heat treatment substrate and matches the metal component placement groove, and positioning connection holes which are arranged at the corners of the heat treatment substrate, wherein the shape of the metal component placement groove matches the shape of the earphone metal component to be heat treated, and the metal component support plate is used to support the earphone metal component after it is placed in the metal component placement groove so that both ends protrude from the surface of the heat treatment substrate.

[0009] Specifically, the metal component placement groove includes an arc-shaped middle placement groove, and a large end placement groove and a small end placement groove respectively located at two ends of the middle placement groove.

[0010] Furthermore, the metal component placement grooves are regularly arranged in multiple groups on the heat treatment substrate.

[0011] Specifically, a group of metal component placement grooves is configured as two, wherein the large end placement groove of one metal component placement groove is close to the small end placement groove of another metal component placement groove.

[0012] Specifically, the metal component support plate includes a supporting substrate, a connecting protrusion arranged on the supporting substrate, and a first groove and a second groove opened on the supporting substrate, wherein the connecting protrusion is used to connect the heat treatment substrate, the first groove corresponds to the position of the large end placement groove, and the second groove corresponds to the position of the small end placement groove.

[0013] Specifically, a group of metal component placement grooves corresponds to two metal component support plates.

[0014] Furthermore, the utility model also provides a heat treatment jig for earphone metal components, comprising a plurality of heat treatment substrates stacked and spaced apart by a support assembly, wherein the heat treatment substrate is provided with a metal component placement groove in the form of a vertical penetration, and a metal component support plate matching the metal component placement groove thereon is connected to the lower side of the heat treatment substrate, and positioning connection holes for connecting the support assembly are provided at the corners of the heat treatment substrate, wherein the shape of the metal component placement groove matches the shape of the earphone metal component to be heat treated, and the metal component support plate is used to support the earphone metal component after being placed in the metal component placement groove so that the two ends protrude from the surface of the heat treatment substrate.

[0015] Specifically, the support assembly includes a support rod and a support sleeve. The support rod passes through the positioning connection holes at the same position on all the heat treatment substrates, and the support sleeve is sleeved on the support rod and located between adjacent heat treatment substrates.

[0016] Specifically, the outer diameter of the supporting sleeve is larger than the hole diameter of the positioning connection hole.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) The utility model designs the heat treatment jig according to the processing requirements of the metal components of the earphone, ensures the stable placement and shape retention of the metal components of the earphone during the heat treatment process, improves the effect of the heat treatment process on its processing and shaping, and provides reliable support for the use of the metal components in the ear clip type earphone, thereby increasing the service life of the ear clip type earphone and maintaining a suitable clamping force, and enhancing the user experience. The utility model has a simple and ingenious design, can be heat treated in large quantities, is easy to use, and has high efficiency, and is suitable for use in the processing of metal components of earphones.

[0019] (2) The utility model specifically designs a metal component placement groove that matches the shape of the earphone metal component, so that the earphone metal component can continue to maintain its curved shape after placement, which helps to finalize the shape after heat treatment. At the same time, a metal component support plate with a first groove and a second groove is used to match and support the protruding parts at both ends, so that the earphone metal component can be stably placed in the metal component placement groove without falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the appearance structure of the earphone metal component serving as an intermediate connecting piece.

[0021] Figure 2 This is a schematic diagram of the overall structure of Example 1 of the present utility model.

[0022] Figure 3 This is a schematic diagram of the local structure of Example 1 of the present utility model.

[0023] Figure 4 This is a schematic structural diagram of the metal component support plate in Example 1 of the present utility model.

[0024] Figure 5 This is a schematic diagram of the overall structure of Example 2 of the present utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the support assembly in Example 2 of the present utility model.

[0026] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0027] 1-heat treatment substrate, 2-metal component placement groove, 3-metal component support plate, 4-positioning connection hole, 5-earphone metal component; 11-middle placement groove, 12-large end placement groove, 13-small end placement groove, 14-support substrate, 15-connecting protrusion, 16-first groove, 17-second groove, 20-support assembly, 21-support rod, 22-support sleeve, 23-support base. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The implementation methods of the present invention include but are not limited to the following embodiments.

[0029] Example 1

[0030] like Figures 2 to 4 As shown, the headphone metal component heat treatment jig includes a flat heat treatment substrate 1, a metal component placement groove 2 which runs through the heat treatment substrate from top to bottom, a metal component support plate 3 which is connected to the lower side of the heat treatment substrate and matches the metal component placement groove, and a positioning connection hole 4 which is arranged at the corner of the heat treatment substrate, wherein the shape of the metal component placement groove matches the shape of the headphone metal component 5 to be heat treated, the headphone metal component is the middle connector of the ear clip type headphone, and the metal component support plate is used to support the headphone metal component after it is placed in the metal component placement groove so that both ends protrude from the surface of the heat treatment substrate.

[0031] Specifically, the metal component placement groove includes an arc-shaped middle placement groove 11, and a large end placement groove 12 and a small end placement groove 13 respectively located at the two ends of the middle placement groove. The middle connector of the ear clip earphone has a claw-shaped small end and a ring-shaped large end. The shapes of the small end placement groove and the large end placement groove match the shapes of the two ends of the middle connector to facilitate accurate alignment and placement.

[0032] In order to improve the efficiency of the heat treatment process and save energy, the metal component placement grooves can be configured into multiple groups on the heat treatment substrate. In order to facilitate the layout of the plate and save space, these metal component placement grooves are arranged in a regular arrangement, such as a horizontal and vertical array arrangement. Specifically, a group of metal component placement grooves is configured as two, so as to make the corresponding parts of a pair of headphones. On its layout plate, the large end placement groove of one metal component placement groove is close to the small end placement groove of another metal component placement groove, thereby saving the layout space and allowing as many groups of metal component placement grooves as possible to be formed on the substrate of the same size. After the metal component placement grooves are arranged in multiple groups, a group of metal component placement grooves corresponds to two metal component support plates, so as to support the two ends of the headphone metal components in one group respectively.

[0033] Specifically, the metal component support plate includes a support base plate 14, a connection protrusion 15 disposed on the support base plate, and a first groove 16 and a second groove 17 opened on the support base plate, wherein the connection protrusion is used to connect the heat treatment base plate, the first groove corresponds to the position of the large end placement groove, and the second groove corresponds to the position of the small end placement groove. When the metal component placement grooves are arranged in a group, the first groove and the second groove opened on the same metal component support plate can be adjacent to each other, thereby forming a large groove with steps, which can facilitate the processing of the jig.

[0034] The positioning and connecting holes provided at the corners of the heat treatment substrate are configured in multiples according to the positioning and connecting requirements, for example, one hole is configured at each of the four corners, so as to facilitate the connection between the external support frame and the heat treatment substrate, thereby improving the efficiency of the heat treatment process.

[0035] When the heat treatment jig is in use, the metal components formed in the previous bending process are mainly placed manually one by one in the metal component placement groove to keep them fixed. The metal component placement groove as a whole maintains the shape of the metal component, and the metal component support plates support the protruding parts at both ends of the metal component to prevent the metal component from falling. Then the heat treatment substrate is placed in a heating furnace as a whole for heat treatment and shaping. After being taken out and cooled, the semi-finished product of the metal component can be obtained, and then it enters the subsequent polishing and other processes for further processing.

[0036] Example 2

[0037] like Figure 5 to Figure 6 As shown, the utility model provides a heat treatment fixture for earphone metal components, including a plurality of heat treatment substrates 1 stacked and spaced apart by a support assembly 20, the heat treatment substrate is provided with a metal component placement groove 2 in a vertically penetrating form, the lower side of the heat treatment substrate is connected to a metal component support plate 3 matching the metal component placement groove thereon, and the corners of the heat treatment substrate are provided with positioning connection holes 4 for connecting the support assembly, wherein the heat treatment substrate 1, the metal component placement groove 2, the metal component support plate 3 and the positioning connection holes 4 can all be configured in the manner of Example 1. By stacking and spacing a plurality of heat treatment substrates, more positions for metal component placement grooves are provided, so that more metal components can be processed during a single heat treatment process, greatly improving production efficiency.

[0038] Specifically, the support assembly 20 includes a support rod 21 and a support sleeve 22. The support rod passes through the positioning connection holes at the same position on all heat treatment substrates, and the support sleeve is placed on the support rod and located between adjacent heat treatment substrates. One support rod corresponds to multiple support sleeves, so that there is a support sleeve between each pair of adjacent heat treatment substrates. The outer diameter of the support sleeve is larger than the aperture of the positioning connection hole, so as to maintain the interval between adjacent heat treatment substrates, so that the heat treatment substrates are stacked more stably. For the convenience of installation and placement, a support base 23 can also be set at the bottom of each support rod.

[0039] The basic process of using the ear heat treatment fixture is the same as that of the embodiment, except that the metal components are arranged in the metal component placement groove of the heat treatment substrate starting from the bottom layer, and after each layer is arranged, the next layer of heat treatment substrate is placed through the support assembly until all heat treatment substrates are placed or the metal components to be processed are placed.

[0040] The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any changes that adopt the design principles of the present utility model and are made through non-creative labor on this basis should fall within the protection scope of the present utility model.

Claims

1. A heat treatment jig for earphone metal components, characterized in that: The invention comprises a flat heat treatment substrate (1), a metal component placement groove (2) extending vertically through the heat treatment substrate (1), a metal component support plate (3) connected to the lower side of the heat treatment substrate (1) and matching the metal component placement groove (2), and a positioning connection hole (4) arranged at the corner of the heat treatment substrate (1), wherein the shape of the metal component placement groove (2) matches the shape of the earphone metal component to be heat treated, and the metal component support plate (3) is used to support the earphone metal component after it is placed in the metal component placement groove (2) so that the two ends protrude from the surface of the heat treatment substrate (1).

2. The heat treatment jig for earphone metal components according to claim 1, characterized in that: The metal component placement groove (2) comprises an arc-shaped middle placement groove (11), and a large end placement groove (12) and a small end placement groove (13) respectively located at two ends of the middle placement groove (11).

3. The heat treatment jig for earphone metal components according to claim 2, characterized in that: The metal component placement grooves (2) are regularly arranged in multiple groups on the heat treatment substrate (1).

4. The heat treatment jig for earphone metal components according to claim 3, characterized in that: A group of metal component placement grooves (2) is configured as two, wherein a large end placement groove (12) of one metal component placement groove (2) is close to a small end placement groove (13) of another metal component placement groove (2).

5. The heat treatment jig for earphone metal components according to claim 4, characterized in that: The metal component support plate (3) comprises a support substrate (14), a connecting protrusion (15) arranged on the support substrate (14), and a first groove (16) and a second groove (17) opened on the support substrate (14), wherein the connecting protrusion (15) is used to connect the heat treatment substrate (1), the first groove (16) corresponds to the position of the large end placement groove (12), and the second groove (17) corresponds to the position of the small end placement groove (13).

6. The heat treatment jig for earphone metal components according to claim 5, characterized in that: A group of metal component placement grooves (2) corresponds to two metal component support plates (3).

7. A heat treatment jig for earphone metal components, characterized in that: The invention comprises a plurality of heat treatment substrates (1) which are stacked and spaced apart by a support assembly (20); a metal component placement groove (2) is provided on the heat treatment substrate (1) in a vertically penetrating manner; a metal component support plate (3) which matches the metal component placement groove (2) on the heat treatment substrate (1) is connected to the lower side of the heat treatment substrate (1); positioning connection holes (4) for connecting to the support assembly (20) are provided at the corners of the heat treatment substrate (1); the shape of the metal component placement groove (2) matches the shape of the earphone metal component to be heat treated; the metal component support plate (3) is used to support the earphone metal component after it is placed in the metal component placement groove (2) so that the two ends protrude from the surface of the heat treatment substrate (1).

8. The heat treatment jig for earphone metal components according to claim 7, characterized in that: The support assembly (20) comprises a support rod (21) and a support sleeve (22); the support rod (21) penetrates and connects positioning connection holes (4) at the same position on all heat treatment substrates (1); and the support sleeve (22) is sleeved on the support rod (21) and located between adjacent heat treatment substrates (1).

9. The heat treatment jig for earphone metal components according to claim 8, characterized in that: The outer diameter of the supporting sleeve (22) is larger than the diameter of the positioning connection hole (4).

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