Voice coil framework positioning device

Abstract

The utility model provides a voice coil framework positioning device, which comprises a main shaft, a spring guide rod, a voice gauge pressure head, a framework positioning guide sleeve, a positioning ring sleeve and a main body cover, and is characterized in that the voice gauge pressure head is sleeved on the spring guide rod and can slide relative to the spring guide rod; the skeleton positioning guide sleeve is sleeved on the sound gauge pressure head and can slide relative to the sound gauge pressure head, the skeleton positioning guide sleeve is provided with an installation placing groove, the positioning ring is sleeved on the installation placing groove, the positioning ring sleeve is connected with the installation placing groove through a driving spring, and the driving spring is connected with the skeleton positioning guide sleeve. The positioning ring sleeve is provided with a penetrating hole and a positioning step, the main body cover is provided with an inserting hole, the sound gauge pressing head sequentially penetrates through the penetrating hole and the inserting hole, the framework positioning guide sleeve is provided with a limiting step, and after the sound gauge pressing head is sleeved with the inner diameter of a voice coil jig, the sound gauge pressing head is inserted into the inner diameter of the voice coil jig. And the spring guide rod is in contact with the limiting step of the framework positioning guide sleeve.

Description

Technical Field

[0001] The utility model relates to a voice coil frame positioning device. Background Art

[0002] The voice coil is an important part of the vibration system of the electric speaker, and it can also be said to be the heart of the speaker. The performance of the voice coil will affect the sound pressure frequency characteristics, sound pressure level, impedance curve, distortion, transient characteristics, speaker parameters, sound quality, etc. of the speaker, especially the winding quality of the voice coil is related to the speaker's withstand power and life. In the batch winding production process of the automated machine multi-axis winding machine (axis-driven), the positioning of the skeleton with the sheet-shaped rounded notch that has not been sealed with paper when the main shaft moves forward will affect the quality of the voice coil winding, resulting in poor quality and waste of labor and raw material costs. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a voice coil skeleton positioning device, which is implemented through the following scheme.

[0004] A voice coil skeleton positioning device comprises a main shaft, a spring guide rod, a gauge pressure head, a skeleton positioning guide sleeve, a positioning ring sleeve and a main body cover, wherein the gauge pressure head is sleeved on the spring guide rod and can slide relative to the spring guide rod, the skeleton positioning guide sleeve is sleeved on the gauge pressure head and can slide relative to the gauge pressure head, the skeleton positioning guide sleeve is provided with an installation placement groove, the positioning ring sleeve is placed in the installation placement groove, the positioning ring sleeve and the installation placement groove are connected by a driving spring, the positioning ring sleeve 5 is provided with a through hole and a positioning step, the main body cover is provided with a plug-in hole, the gauge pressure head passes through the through hole setting and the plug-in hole in turn, the skeleton positioning guide sleeve is provided with a limiting step, and after the gauge pressure head is sleeved into the inner diameter of a voice coil fixture, the spring guide rod touches the limiting step of the skeleton positioning guide sleeve.

[0005] Furthermore, the positioning ring sleeve is provided with a guiding inclined surface, and the guiding inclined surface is used to guide the end surface of the voice coil skeleton to enter the positioning step.

[0006] Furthermore, a guiding arc surface is provided at the end of the pitch gauge pressure head.

[0007] The beneficial effect of the utility model is that compared with the prior art, the utility model adds corresponding structures of the frame positioning guide sleeve and the positioning ring sleeve to realize the alignment of the voice coil frame before winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is an exploded view of the voice coil skeleton positioning device of the utility model;

[0009] Figure 2 This is a cross-sectional view of the voice coil skeleton positioning device of the utility model;

[0010] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0011] Figure 4 This is a schematic diagram of the structure of the voice coil skeleton of the utility model before positioning;

[0012] Figure 5 It is a schematic diagram of the structure of the voice coil frame of the utility model after positioning. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the embodiments. The embodiments described are only a part of the present invention. These embodiments are only used to explain the present invention and do not constitute any limitation to the scope of the present invention.

[0014] like Figures 1 to 3 As shown, the utility model provides a voice coil skeleton positioning device, including a main shaft 1, a spring guide rod 2, a tone gauge pressure head 3, a skeleton positioning guide sleeve 4, a positioning ring sleeve 5 and a main body cover 6, the tone gauge pressure head 2 is sleeved on the spring guide rod 2 and can slide relative to the spring guide rod 2, the skeleton positioning guide sleeve 4 is sleeved on the tone gauge pressure head 3 and can slide relative to the tone gauge pressure head 3, the skeleton positioning guide sleeve 4 is provided with an installation placement groove 41, the positioning ring sleeve 5 is placed in the installation placement groove 41, the positioning ring sleeve 5 and the installation placement groove 41 are connected through a driving spring 7, the positioning ring sleeve 5 is provided with a through hole 51 and a positioning step 52, the main body cover 6 is provided with a plug-in hole 61, the tone gauge pressure head 3 passes through the through hole and the plug-in hole in sequence, the skeleton positioning guide sleeve 4 is provided with a limiting step 42, after the tone gauge pressure head 2 is sleeved into the inner diameter of the voice coil fixture, the spring guide rod 2 touches the limiting step 42 of the skeleton positioning guide sleeve 4.

[0015] When the voice coil skeleton positioning device of the present invention is used, the voice coil skeleton 8 is first pre-rolled on the voice coil fixture 9 (at this time, the voice coil opening is misaligned, see Figure 4 ), install the voice coil fixture into the plug hole, then, the main shaft moves to push the sound gauge pressure head 2 into the inner diameter of the voice coil fixture. Since the sound gauge pressure head 2 stops moving, the main shaft can continue to push the spring guide rod 2 to move and contact the limit step of the skeleton positioning guide sleeve 4, thereby pushing the skeleton positioning guide sleeve 4 to move, and the skeleton positioning guide sleeve 4 drives the positioning ring sleeve 5 to move through the driving spring. When the end of the voice coil skeleton contacts the positioning step, the voice coil skeleton can be adjusted and aligned (see details). Figure 5 ). Compared with the prior art, the utility model adds corresponding structures of the frame positioning guide sleeve 4 and the positioning ring sleeve 5 to realize the alignment of the voice coil frame before winding.

[0016] As a further solution of the utility model: the positioning ring sleeve 5 is provided with a guiding slope 53, and the guiding slope 53 is used to guide the end face of the voice coil frame 6 to enter the positioning step 52. The guiding slope 53 is provided here so that the end face of the voice coil frame 6 can smoothly enter the positioning step 52.

[0017] As a further solution of the present invention: a guide arc surface 31 is provided at the end of the tone gauge pressure head 3, and the guide arc surface 31 can guide the tone gauge pressure head 3 to enter the voice coil fixture more smoothly.

[0018] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A voice coil skeleton positioning device, characterized in that it includes a main shaft, a spring guide rod, a gauge pressure head, a skeleton positioning guide sleeve, a positioning ring sleeve and a main body cover, the gauge pressure head is sleeved on the spring guide rod and can slide relative to the spring guide rod, the skeleton positioning guide sleeve is sleeved on the gauge pressure head and can slide relative to the gauge pressure head, the skeleton positioning guide sleeve is provided with an installation groove, the positioning ring sleeve is placed in the installation groove, the positioning ring sleeve and the installation groove are connected by a driving spring, the positioning ring sleeve is provided with a through hole and a positioning step, the main body cover is provided with a plug-in hole, the gauge pressure head passes through the through hole setting and the plug-in hole in turn, the skeleton positioning guide sleeve is provided with a limited step, after the gauge pressure head is sleeved into the inner diameter of the voice coil fixture, the spring guide rod touches the limited step of the skeleton positioning guide sleeve.

2. A voice coil skeleton positioning device according to claim 1, characterized in that: The positioning ring sleeve is provided with a guiding inclined surface, and the guiding inclined surface is used to guide the end surface of the voice coil skeleton to enter the positioning step.

3. A voice coil skeleton positioning device according to claim 1, characterized in that: The end of the sound gauge pressure head is provided with a guiding arc surface.

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