CN104683893B - Novel corrugated loudspeaker and processing technology thereof - Google Patents
Novel corrugated loudspeaker and processing technology thereof Download PDFInfo
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- CN104683893B CN104683893B CN201510091497.7A CN201510091497A CN104683893B CN 104683893 B CN104683893 B CN 104683893B CN 201510091497 A CN201510091497 A CN 201510091497A CN 104683893 B CN104683893 B CN 104683893B
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- 238000005516 engineering process Methods 0.000 title abstract description 6
- 238000003754 machining Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000007514 turning Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000009750 centrifugal casting Methods 0.000 description 2
- 238000005323 electroforming Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
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Abstract
A novel corrugated horn and a processing technology thereof. Relates to the field of horn structures. The novel corrugated horn has the advantages of exquisite structure, convenience in machining, high electrical performance and high precision, and can finish machining through low-cost machining (namely turning of a numerical control lathe). The loudspeaker comprises a loudspeaker body and a plurality of mounting rings, wherein a sound producing hole is formed in the center of the loudspeaker body, a flange ring is fixedly connected to the outer wall of one end of the loudspeaker body, and a plurality of containing grooves which are distributed in a stepped manner are formed in the end face of the other end of the loudspeaker body; the mounting rings are in one-to-one correspondence with the accommodating grooves and are detachably connected, and gaps are reserved between adjacent mounting rings; the front end of the sound producing hole is conical, and the inner walls of the mounting rings and the front end of the sound producing hole are distributed on the same conical surface. Has higher structural strength and higher electrical performance.
Description
Technical Field
The invention relates to the field of horn structures, in particular to a conical corrugated horn and an improvement of a processing technology thereof.
Background
The conical corrugated horn is formed by arranging corrugated grooves in the conical horn of the optical wall, wherein the types of the corrugated grooves can be divided into common grooves, C-shaped grooves, T-shaped grooves, V-shaped grooves and double grooves, the manufacturing difficulty and the processing cost of the conical corrugated horn are increased to different degrees after the conical corrugated horn is embedded into the corrugated grooves, but the conical corrugated horn is very low in side lobe level and cross polarization level relative to the optical wall horn, and has the characteristics of wider frequency band, stronger anti-interference capability, lower voltage standing wave, higher beam efficiency and the like.
The processing technology of the conical corrugated horn can be generally divided into integral machining, electroforming, integral core forming, centrifugal casting and the like; wherein the processing cost of the whole mechanical processing is the lowest, but can only be used for processing common grooves and double grooves; the electroforming and centrifugal casting can process various corrugated grooves, but the surface precision of the processed corrugated grooves is poor, and the electric performance is seriously scrapped.
Disclosure of Invention
Aiming at the problems, the invention provides the novel corrugated horn which has the advantages of exquisite structure, convenient processing, high electrical performance and high precision and can finish the processing through low-cost mechanical processing (namely turning processing of a numerical control lathe) and the processing technology thereof.
The technical scheme of the invention is as follows: the loudspeaker comprises a loudspeaker body and a plurality of mounting rings, wherein a sound producing hole is formed in the center of the loudspeaker body, a flange ring is fixedly connected to the outer wall of one end of the loudspeaker body, and a plurality of containing grooves which are distributed in a stepped manner are formed in the end face of the other end of the loudspeaker body;
the mounting rings are in one-to-one correspondence with the accommodating grooves and are detachably connected, and gaps are reserved between adjacent mounting rings;
the front end of the sound producing hole is conical, and the inner walls of the mounting rings and the front end of the sound producing hole are distributed on the same conical surface.
The mounting ring is attached to the inner wall of the accommodating groove and attached to the bottom of the accommodating groove, and the mounting ring is in interference fit with the inner wall of the accommodating groove.
The inner wall of the accommodating groove is provided with at least one convex rib arranged along the axial direction of the horn body, and the outer wall of the mounting ring is provided with a groove matched with the convex rib.
The mounting ring is provided with a mounting ring outer wall, a mounting ring inner wall and a mounting ring rear end surface, the mounting ring outer wall is in a conical surface shape with a small front and a large rear, the mounting ring inner wall is divided into a mounting ring inner conical surface I and a mounting ring inner conical surface II from front to rear, the mounting ring inner conical surface I and the mounting ring inner conical surface II are both in a conical surface shape and perpendicular, and the mounting ring inner conical surface II is in a step surface shape with a small front and a large rear;
the rear end of the outer wall of the mounting ring is also provided with a mounting ring connecting surface matched with the inner wall of the accommodating groove, and the rear end surface of the mounting ring is attached to the bottom of the accommodating groove;
the mounting ring is characterized in that an external thread is arranged on the connecting surface of the mounting ring, an internal thread is arranged on the inner wall of the accommodating groove, and the external thread is matched with the internal thread.
A rotation stopping gasket is arranged between the rear end face of the mounting ring and the bottom of the accommodating groove, and the inner diameter of the rotation stopping gasket is larger than the diameter of the inner edge of the rear end face of the mounting ring.
The processing is carried out according to the following steps:
1) Processing the loudspeaker body: firstly, finishing the opening of a sound producing hole on a loudspeaker body, then finishing the conical surface-shaped processing of the front end of the sound producing hole through reaming, and finally finishing the opening of a plurality of accommodating grooves step by step from front to back;
2) Machining a mounting ring: finishing the inner wall and the outer wall of the mounting ring one by one;
3) And (3) matching and installing: installing a plurality of mounting rings into the accommodating groove one by one from back to front; and (5) finishing.
The invention aims to solve the problem that machining of corrugated horns such as C-shaped grooves and T-shaped grooves cannot be finished by low-cost machining, and the machining of each mounting ring and each horn body is finished independently by the machining, and then combined installation is carried out; the invention has higher structural strength and higher electrical performance on the whole, and has the characteristics of low processing cost, high surface precision (realized by high-precision processing of a numerical control lathe) and low rejection rate.
Drawings
Figure 1 is a cross-sectional view of a first embodiment of the invention,
FIG. 2 is a cross-sectional view of a mounting ring according to a first embodiment of the invention;
figure 3 is a cross-sectional view of a second embodiment of the invention,
figure 4 is a cross-sectional view of a horn body in accordance with one embodiment of the present invention,
FIG. 5 is a cross-sectional view of a mounting ring according to a first embodiment of the invention;
in the figure, 1 is a loudspeaker body, 10 is a sound producing hole, 11 is a flange ring, 12 is a containing groove, 2 is a mounting ring, 21 is a mounting ring outer wall, 22 is a mounting ring inner wall, 221 is a mounting ring inner conical surface I, 222 is a mounting ring inner conical surface II, 23 is a mounting ring connecting surface, and 24 is a mounting ring rear end surface.
Detailed Description
The invention is shown in figures 1-5, and comprises a loudspeaker body 1 and a plurality of mounting rings 2, wherein a sound producing hole 10 is formed in the center of the loudspeaker body 1, a flange ring 11 is fixedly connected to the outer wall of one end of the loudspeaker body 1, and a plurality of containing grooves 12 distributed in a stepped manner are formed in the end face of the other end of the loudspeaker body 1; the mounting rings 2 are in one-to-one correspondence with the accommodating grooves 12 and are detachably connected;
the mounting rings 2 are in one-to-one correspondence with the accommodating grooves 12 and are detachably connected, and gaps are reserved between adjacent mounting rings 2;
the front end of the sound producing hole 10 is conical, and the inner walls of the mounting rings 2 and the front end of the sound producing hole 10 are distributed on the same conical surface. What should be explained here is: the end of the loudspeaker body far away from the flange ring is a sound producing end, namely the front end, and the end facing the flange ring is the rear end.
Like this, form a ripple groove (can adjust the structure, the size of collar according to the structure and the size of ripple groove designed in advance) between adjacent collar and adjacent accommodation groove to make this case when high electric property, can directly carry out high-efficient, convenient processing respectively to loudspeaker body and collar through machining when processing, and combine afterwards, thereby very big reduction manufacturing cost, and reduced the rejection rate.
The present invention provides the following two embodiments for the detachable connection described above:
embodiment one, as shown in fig. 1-2: the mounting ring 2 is attached to the inner wall of the accommodating groove 12 and attached to the bottom of the accommodating groove 12, and the mounting ring 2 is in interference fit with the inner wall of the accommodating groove 12. The installation can be followed the back and is beaten into the collar step by step forward during the installation to effectively promote the wholeness of ripple loudspeaker and the joint strength between collar and the loudspeaker body.
The inner wall of the accommodating groove 12 is provided with at least one convex edge arranged along the axial direction of the horn body 1, and the outer wall of the mounting ring 2 is provided with a groove matched with the convex edge. Therefore, the positioning of the mounting ring is more convenient and accurate.
Embodiment two, as shown in FIGS. 3-5: the mounting ring 2 is provided with a mounting ring outer wall 21, a mounting ring inner wall 22 and a mounting ring rear end surface 24, the mounting ring outer wall 21 is in a shape of a front small conical surface and a rear large conical surface, the mounting ring inner wall 22 is divided into a mounting ring inner conical surface I221 and a mounting ring inner conical surface II 222 from front to rear, the mounting ring inner conical surface I221 and the mounting ring inner conical surface II 222 are in a shape of conical surfaces and are vertical, and the mounting ring inner conical surface II 222 is in a shape of a front small step surface and a rear large step surface;
the rear end of the outer wall 21 of the mounting ring is also provided with a mounting ring connecting surface 23 which is matched with the inner wall of the accommodating groove 12, and the rear end surface 24 of the mounting ring is attached to the bottom of the accommodating groove 12; therefore, a plurality of C-shaped grooves can be formed at the front end of the horn body, so that the horn has high electric performance equivalent to that of a corrugated horn with the C-shaped grooves;
the mounting ring connecting surface 23 is provided with external threads, the inner wall of the accommodating groove 12 is provided with internal threads, and the external threads are matched with the internal threads. Thereby make the connection between collar and the loudspeaker body more firm, and then brought very big guarantee to the holistic electrical property of scheme.
A rotation stopping gasket is arranged between the rear end face 24 of the mounting ring and the bottom of the accommodating groove, and the inner diameter of the rotation stopping gasket is larger than the diameter of the inner edge of the rear end face of the mounting ring. Therefore, on the premise that the integral electrical performance of the scheme is not affected, the problems of loosening, slipping and the like caused by vibration of the L-shaped ring are effectively avoided through the rotation-stopping gasket.
The processing is carried out according to the following steps:
1) Processing the loudspeaker body: firstly, finishing the opening of the sounding hole 10 on the loudspeaker body 1, then finishing the conical surface-shaped processing of the front end of the sounding hole 10 through reaming, and finally finishing the opening of a plurality of accommodating grooves 12 step by step from front to back;
2) Machining a mounting ring: finishing the inner wall and the outer wall of the mounting ring 2 one by one;
3) And (3) matching and installing: mounting a plurality of mounting rings 2 into the accommodating groove 12 one by one from the back to the front; and (5) finishing.
The mounting ring and the loudspeaker body are separately processed, and the processing modes of the mounting ring and the loudspeaker body are very simple and convenient in the field, so that the steps 1) and 2) can be realized by adopting the traditional mechanical processing, and the invention has the characteristics of extremely low processing cost, extremely high processing precision and extremely low rejection rate. In actual production, the external dimensions of the stepped accommodating groove and the mounting rings can be adjusted according to the dimension requirements of the corrugated grooves, so that the corrugated grooves with various shapes and dimensions can be formed by combining the mounting rings, and the problem that the C-shaped groove and the T-shaped groove cannot be finished by machining is finally solved.
Claims (3)
1. The utility model provides a novel ripple loudspeaker, includes loudspeaker body and a plurality of collar, the center of loudspeaker body
A sounding hole is formed, a flange ring is fixedly connected to the outer wall of one end of the horn body, and a plurality of containing grooves which are distributed in a stepped manner are formed in the end face of the other end of the horn body;
the mounting rings are in one-to-one correspondence with the accommodating grooves and are detachably connected, and gaps are reserved between adjacent mounting rings;
the front ends of the sound producing holes are conical, and the inner walls of the mounting rings and the front ends of the sound producing holes are distributed on the same cone
On the surface; it is characterized in that the method comprises the steps of,
the mounting ring is provided with a mounting ring outer wall, a mounting ring inner wall and a mounting ring rear end surface, the mounting ring outer wall is in a conical surface shape with a small front and a large rear, the mounting ring inner wall is divided into a mounting ring inner conical surface I and a mounting ring inner conical surface II from front to rear, the mounting ring inner conical surface I and the mounting ring inner conical surface II are both in a conical surface shape and perpendicular, and the mounting ring inner conical surface II is in a step surface shape with a small front and a large rear;
the rear end of the outer wall of the mounting ring is also provided with a mounting ring connecting surface matched with the inner wall of the accommodating groove, and the rear end surface of the mounting ring is attached to the bottom of the accommodating groove; forming a plurality of C-shaped grooves at the front end of the horn body;
an external thread is arranged on the connecting surface of the mounting ring, an internal thread is arranged on the inner wall of the accommodating groove, and the external thread is matched with the internal thread;
the mounting ring is attached to the inner wall of the accommodating groove and attached to the bottom of the accommodating groove, and the mounting ring is in interference fit with the inner wall of the accommodating groove.
2. The novel corrugated horn according to claim 1, wherein a rotation stopping gasket is arranged between the rear end face of the mounting ring and the bottom of the accommodating groove, and the inner diameter of the rotation stopping gasket is larger than the diameter of the inner edge of the rear end face of the mounting ring.
3. A method of manufacturing a novel corrugated horn as claimed in claim 1, wherein the steps of:
1) Processing the loudspeaker body: firstly, finishing the opening of a sound producing hole on a loudspeaker body, then finishing the conical surface-shaped processing of the front end of the sound producing hole through reaming, and finally finishing the opening of a plurality of accommodating grooves step by step from front to back;
2) Machining a mounting ring: finishing the inner wall and the outer wall of the mounting ring one by one;
3) And (3) matching and installing: installing a plurality of mounting rings into the accommodating groove one by one from back to front; and (5) finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091497.7A CN104683893B (en) | 2015-02-28 | 2015-02-28 | Novel corrugated loudspeaker and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091497.7A CN104683893B (en) | 2015-02-28 | 2015-02-28 | Novel corrugated loudspeaker and processing technology thereof |
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| Publication Number | Publication Date |
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| CN104683893A CN104683893A (en) | 2015-06-03 |
| CN104683893B true CN104683893B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510091497.7A Active CN104683893B (en) | 2015-02-28 | 2015-02-28 | Novel corrugated loudspeaker and processing technology thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971929B (en) * | 2023-03-17 | 2023-06-30 | 西安瑞霖电子科技股份有限公司 | Feed horn and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089209U (en) * | 1991-04-19 | 1991-11-20 | 机械电子工业部石家庄第五十四研究所 | Wide band high performance corrugated horn |
| CN202678522U (en) * | 2012-07-11 | 2013-01-16 | 北京无线电计量测试研究所 | Novel low-frequency conical-corrugation lens horn antenna |
| CN204377085U (en) * | 2015-02-28 | 2015-06-03 | 扬州雷华测控设备有限公司 | New type corrugated loudspeaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6982679B2 (en) * | 2003-10-27 | 2006-01-03 | Harris Corporation | Coaxial horn antenna system |
-
2015
- 2015-02-28 CN CN201510091497.7A patent/CN104683893B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089209U (en) * | 1991-04-19 | 1991-11-20 | 机械电子工业部石家庄第五十四研究所 | Wide band high performance corrugated horn |
| CN202678522U (en) * | 2012-07-11 | 2013-01-16 | 北京无线电计量测试研究所 | Novel low-frequency conical-corrugation lens horn antenna |
| CN204377085U (en) * | 2015-02-28 | 2015-06-03 | 扬州雷华测控设备有限公司 | New type corrugated loudspeaker |
Non-Patent Citations (2)
| Title |
|---|
| 波纹喇叭结构设计;张恒;;无线电通信技术(05);第57-34, 28页 * |
| 适合高频波波纹喇叭的制造工艺;马金仓;;电子工艺技术(02);全文 * |
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| CN104683893A (en) | 2015-06-03 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Wanjun Inventor after: Chen Jun Inventor after: Huang Wei Inventor before: Chen Jun Inventor before: Zhang Wanjun Inventor before: Huang Wei |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240223 Address after: No. 3 Chaolong Road, Shatou Town, Guangling District, Yangzhou City, Jiangsu Province, 225000 Applicant after: Yangzhou Ruichen Precision Machinery Co.,Ltd. Country or region after: China Address before: No. 133 Wenchang Middle Road, Qujiang Street, Guangling District, Yangzhou City, Jiangsu Province, 225000 Applicant before: YANGZHOU LEIHUA MEASUREMENT AND CONTROL EQUIPMENT CO.,LTD. Country or region before: China |
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