Special tooling for quick cutting of speakers

Abstract

The invention discloses a special tool for quick cutting of a horn, comprising a chassis jig, a rotating mechanism and a cutting tool, wherein the middle part of the rotating mechanism is rotatably fixed on the chassis jig through a rotating shaft, and there are two cutting tools, which are respectively arranged at two ends of the rotating mechanism, and the cutting tools are driven to rotate by the rotating mechanism to achieve cutting of the profile; the chassis jig is in a disc shape, one end of the rotating shaft is arranged at the center of the chassis jig, and the other end of the rotating shaft is arranged with a thread; the rotating mechanism comprises a rotating arm and a thrust ball bearing, the center of gravity of the rotating arm is arranged with a through hole sleeved on the rotating shaft, and a clamping nut is arranged on the rotating shaft; the invention arranges a rotating mechanism on the chassis jig, and arranges a cutting tool on the rotating mechanism, and the cutting tool is driven by the rotating mechanism to cut the profile placed on the chassis jig, thereby changing the hole opening method of the through hole, improving the hole opening quality, and reducing working noise.

Description

Technical field:

[0002] The invention relates to the field of mechanical processing, in particular to a special tool for quick cutting of a horn. Background technology:

[0004] A speaker is a transducer device that converts electrical signals into sound signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest component in the audio equipment, but it is also the most important component for the sound effect. There are many types of speakers, and the prices vary greatly. Audio electrical energy vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects and resonates (resonates) with the surrounding air to produce sound.

[0005] A metal cover (commonly known as a horn) is generally installed on the outside of the speaker. In the actual production process, there is only a small hole at the bottom of the metal cover. When the speaker needs to be installed at the bottom of the metal cover, a hole needs to be drilled in the metal cover. The existing practice is to place the metal cover on a stamping die for punching. However, due to wear or displacement of the die, burrs often appear at the punching site, and manual trimming is required, which increases the labor intensity of the personnel. At the same time, the punching operation generates noise, causing certain noise pollution. Summary of the invention:

[0007] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art, by arranging a rotating mechanism on the chassis jig and arranging a cutting tool on the rotating mechanism, the cutting tool is driven by the rotating mechanism to cut the profile placed on the chassis jig, the opening method of the through hole is changed, the opening quality is improved, and the working noise is reduced to form a special tool for quick cutting of the horn.

[0008] The technical solution of the present invention is: a special tool for quick cutting of a horn, comprising a chassis jig, a rotating mechanism and a cutting tool, wherein the middle part of the rotating mechanism is rotatably fixed on the chassis jig through a rotating shaft, and the number of the cutting tools is two, which are respectively arranged at the two ends of the rotating mechanism, and the cutting tools are driven to rotate by the rotating mechanism to achieve cutting of the profile;

[0009] The chassis mold is in the shape of a disk, one end of the rotating shaft is arranged at the center of the chassis mold, and the other end of the rotating shaft is provided with a thread;

[0010] The rotating mechanism includes a rotating arm and a thrust ball bearing. The center of gravity of the rotating arm is provided with a through hole sleeved on the rotating shaft. The rotating shaft is sleeved with a thrust ball bearing embedded in the rotating arm through an annular countersunk hole, and an annular countersunk hole is provided at the through hole. A clamping nut is provided on the rotating shaft.

[0011] Furthermore, the cutting tool is a combined rolling tool, which is symmetrically arranged on the rotating arm with the rotating shaft as the center.

[0012] Furthermore, the cutting tool is screwed onto the rotating arm through a screw hole.

[0013] Furthermore, the chassis jig is provided with an annular groove corresponding to the rotation trajectory of the cutting tool, and the chassis jig is connected to the bottom plate via a bracket.

[0014] Furthermore, rotating handles are provided at both ends of the rotating arm, and a pressing gasket is sleeved on the rotating shaft between the clamping nut and the thrust ball bearing.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention arranges a rotating mechanism on the chassis jig and arranges a cutting tool on the rotating mechanism. The rotating mechanism drives the cutting tool to cut the profile placed on the chassis jig, thereby changing the opening method of the through hole, improving the opening quality, and reducing working noise.

[0017] 2. The rotating arm of the present invention is mounted on a rotating shaft arranged at the center of the chassis mold, and the cutting knives are symmetrically arranged on the rotating arm with the rotating shaft as the center. When the rotating arm rotates around the rotating shaft, the two cutting knives move in a circular trajectory to perform rotary cutting on the profile.

[0018] 3. The other end of the rotating shaft of the present invention is provided with a thread, and the rotating arm, the thrust ball bearing and the clamping gasket are sequentially sleeved on the rotating shaft, and the clamping operation is performed by the clamping nut. By twisting the clamping nut on the threaded end of the rotating shaft, a downward pressure is generated to enable the cutting knife to cut the plate. Rotating handles and thrust bearings are provided at both ends of the rotating arm to facilitate the rotation of the rotating arm.

[0019] 4. The chassis jig of the present invention is provided with an annular groove corresponding to the rotation trajectory of the cutting tool. When the cutting tool rotates, it can extend into the annular groove and cooperate with the annular groove to achieve cutting of the profile. The chassis jig is connected to the bottom plate through a bracket so that the chassis jig is at a certain height from the ground, which is convenient for the profile to be put on the chassis jig. Description of the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a special tooling for quick cutting of speakers. Specific implementation method:

[0023] Example: See Figure 1 , In the figure, 1- rotating shaft, 2- chassis jig, 3- cutting tool, 4- rotating arm, 5- thrust ball bearing, 6- clamping nut, 7- annular groove, 8- bracket, 9- bottom plate, 10- rotating handle, 11- clamping gasket, A- profile.

[0024] A special tooling for quick cutting of a horn comprises a chassis jig, a rotating mechanism and a cutting tool, the middle part of the rotating mechanism is fixed on the chassis jig by rotating a shaft, there are two cutting tools, which are respectively arranged at the two ends of the rotating mechanism, and the cutting tools are driven to rotate by the rotating mechanism to achieve cutting of the profile; the chassis jig is in the shape of a disc, one end of the rotating shaft is arranged at the center of the chassis jig, and the other end of the rotating shaft is provided with a thread; the rotating mechanism comprises a rotating arm and a thrust ball bearing, the center of gravity of the rotating arm is provided with a through hole sleeved on the rotating shaft, the rotating shaft is sleeved with a thrust ball bearing embedded in the rotating arm through an annular countersunk hole, and an annular countersunk hole is provided at the through hole, and a clamping nut is provided on the rotating shaft; by arranging a rotating mechanism on the chassis jig and arranging a cutting tool on the rotating mechanism, the cutting tool is driven by the rotating mechanism to cut the profile placed on the chassis jig, the opening method of the through hole is changed, the opening quality is improved, and the working noise is reduced.

[0025] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0026] The middle part of the rotating mechanism is rotatably fixed on the chassis jig 2 through the rotating shaft 1. There are two cutting tools 3, which are respectively arranged at the two ends of the rotating mechanism. The cutting tools 3 are driven to rotate by the rotating mechanism to achieve cutting of the profile A.

[0027] The chassis jig 2 is in the shape of a disk, one end of the rotating shaft 1 is arranged at the center of the chassis jig 2, and the other end of the rotating shaft 1 is provided with a thread;

[0028] The rotating mechanism includes a rotating arm 4 and a thrust ball bearing 5. The center of gravity of the rotating arm 4 is provided with a through hole sleeved on the rotating shaft 1. The rotating shaft 1 is sleeved with a thrust ball bearing 5 embedded in the rotating arm 4 through an annular countersunk hole, and an annular countersunk hole is provided at the through hole. A clamping nut 6 is provided on the rotating shaft 1.

[0029] The cutting tool 3 is a combined rolling tool, which is symmetrically arranged on the rotating arm 4 with the rotating shaft 1 as the center. The cutting tool 3 is screwed on the rotating arm 4 through a screw hole.

[0030] The chassis jig 2 is provided with an annular groove 7 corresponding to the rotation trajectory of the cutting tool 3 , and the chassis jig 2 is connected to the bottom plate 9 via a bracket 8 .

[0031] Rotating handles 10 are provided at both ends of the rotating arm 4 , and a pressing gasket 11 is sleeved on the rotating shaft 1 between the pressing nut 6 and the thrust ball bearing 5 .

[0032] When in use, the profile A (metal cover) is sleeved on the chassis mold 2, the rotating shaft 1 passes through the small hole at the bottom of the profile A, the rotating arm 4, the thrust ball bearing 5 and the clamping gasket 11 are sleeved on the rotating shaft 1 in sequence, and the clamping operation is performed through the clamping nut 6, the rotating arm 4 is rotated by rotating the handle 10, and the cutting tool 3 is driven to rotate around the rotating shaft 1, and the clamping nut 6 is gradually tightened during the rotation of the cutting tool 3, so that the rotating arm 4 and the cutting tool 3 move downward along the rotating shaft 1, a downward pressure is generated, and the cutting tool 3 is cut while moving downward. When the cutting tool 3 rotates, it can extend into the annular groove 7 and cooperate with the annular groove 7 to realize the hole opening operation on the profile A. After the hole opening is completed, the clamping nut 6 is screwed to remove the clamping gasket 11, the thrust ball bearing 5 and the rotating arm 4 from the rotating shaft 1 in sequence, and the waste generated after cutting is removed from the rotating shaft 1, and the profile A with the hole opened is removed to complete a working cycle.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A special tool for quick cutting of a horn, comprising a chassis jig, a rotating mechanism and a cutting tool, characterized in that : The middle part of the rotating mechanism is rotatably fixed on the chassis jig through a rotating shaft, and there are two cutting tools, which are respectively arranged at the two ends of the rotating mechanism. The cutting tools are driven to rotate by the rotating mechanism to achieve cutting of the profile; The chassis mold is in the shape of a disk, one end of the rotating shaft is arranged at the center of the chassis mold, and the other end of the rotating shaft is provided with a thread; The rotating mechanism comprises a rotating arm and a thrust ball bearing, the center of gravity of the rotating arm is provided with a through hole sleeved on the rotating shaft, the rotating shaft is sleeved with a thrust ball bearing embedded in the rotating arm through an annular countersunk hole, and an annular countersunk hole is provided at the through hole, and a clamping nut is provided on the rotating shaft; The cutting tool is a combined rolling tool, which is symmetrically arranged on the rotating arm with the rotating shaft as the center; The chassis jig is provided with an annular groove corresponding to the rotation track of the cutting tool, and the chassis jig is connected to the bottom plate through a bracket.

2. The special tool for quick cutting of a horn according to claim 1 is characterized in that :The cutting tool is screwed to the rotating arm through a screw hole.

3. The special tool for quick cutting of a loudspeaker according to claim 1 is characterized by: Rotating handles are arranged at both ends of the rotating arm, and a pressing gasket is sleeved on the rotating shaft between the clamping nut and the thrust ball bearing.

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