A sintering mold for a core-post bending connector and its application method
Patent Information
- Application Number
- CN202111249614.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2041-10-26
AI Technical Summary
In the existing glass-sealed RF connector manufacturing process, the core-bending connector is sintered first and then bent, which easily leads to glass cracking, resulting in a large number of defective products, low pass rate, large material and resource consumption, large amount of manual labor, and high production cost.
A sintering mold for a core-pillar bending connector was designed, including a main mold, a secondary mold, and a connector mechanism. By sintering and sealing the outer conductor and the pre-bent inner conductor with the glass blank, the glass cracking caused by sintering before bending is avoided. The method of bending before sintering is adopted.
It reduces the risk of glass cracking, increases the yield rate, reduces material and resource waste, lowers production costs, and improves corporate efficiency.
Smart Images
Figure CN114204379B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of radio frequency devices, and more particularly to a sintering mold for a core-pillar bending connector and its method of use. Background Technology
[0002] Glass-sealed RF connectors are used in aerospace and military component systems with high sealing requirements. As RF components develop towards miniaturization, multi-functionality, and high frequency, RF connectors are required to have smaller size, lower standing wave ratio and loss, while ensuring excellent hermetic and insulation performance.
[0003] The existing processing technology for glass-sealed RF connectors generally involves sintering the core posts before bending them. This processing method is prone to glass cracking, resulting in a large number of defective products, a low pass rate, significant material and resource consumption, a large amount of manual labor, and high production costs.
[0004] Therefore, it is necessary to provide a sintering mold for a core-post bending connector and its usage method to solve the above-mentioned technical problems. Summary of the Invention
[0005] This invention provides a sintering mold for a core-post bending connector and its usage method, which solves the problems in the glass-sealed RF connector production process, where the core-post bending connector is usually sintered first and then bent. This processing method is prone to glass cracking, resulting in a large number of defective products, low pass rate, large material and resource consumption, large amount of manual labor, and high production cost.
[0006] To solve the above technical problems, the present invention provides a sintering mold for a core-pillar bending connector, comprising a main template, a secondary template, and a connector mechanism. The main template is provided with multiple mold base mechanisms, each mold base mechanism including a square groove, a circular groove, a boss, a pin hole, and a side groove. The square groove is formed on the surface of the main template, the circular groove is formed inside the main template and located at the bottom of the square groove, the boss is formed at the bottom of the inner cavity of the circular groove, the pin hole is formed on the upper surface of the boss, and the side groove is formed on the surface of the main template and located on one side of the square groove.
[0007] The surface of the sub-template is provided with multiple sub-template through holes;
[0008] The connector mechanism includes an outer conductor, an inner conductor, and an insulator. The outer conductor includes an upper square conductor portion and a bottom cylindrical conductor portion. An outer conductor through-hole is formed in the middle of the outer conductor, and an insulator is disposed inside the outer conductor through-hole. The inner conductor includes a bent end and a plug end. The plug end penetrates the insulator and extends to the bottom of the insulator. The bent end extends along the surface of the square conductor portion to the outside of the outer conductor. Multiple pins are fixedly connected to the front side of the square conductor portion.
[0009] Preferably, the size of the square groove is adapted to the size of the square conductor portion, the inner diameter of the circular groove is adapted to the outer diameter of the cylindrical conductor portion, and the total depth of the square groove and the circular groove is adapted to the total height of the outer conductor.
[0010] Preferably, the size of the side groove is adapted to the size of the portion of the inner conductor whose bent end extends to the outside of the outer conductor.
[0011] Preferably, the outer diameter of the boss is adapted to the diameter of the outer conductor through hole, so that the cylindrical conductor portion can be fitted onto the outside of the boss.
[0012] Preferably, the dimensions of the sub-template are adapted to the dimensions of the square groove.
[0013] Preferably, the depth of the pin hole is adapted to the length of the insertion end of the inner conductor extending to the bottom of the insulator, and the inner diameter of the pin hole is adapted to the diameter of the inner conductor.
[0014] Preferably, the inner diameter of the sub-mold through hole on the surface of the sub-mold is adapted to the outer diameter of the pin, and the number and arrangement are the same.
[0015] Preferably, the surface of the square conductor portion has a groove for the inner conductor to extend out.
[0016] A method for using a sintering mold for a core-post bending connector includes the following steps:
[0017] S1: The cylindrical conductor portion of the outer conductor is placed into the mold base mechanism with the cylindrical conductor portion facing outwards, and the square conductor portion is placed in the circular groove.
[0018] S2: The glass blank, which serves as an insulator, is inserted into the through hole of the outer conductor, with the bottom of the glass blank contacting the top of the boss;
[0019] S3: Insert the inner conductor's plug end through the glass blank into the pin hole, with the bent end of the inner conductor located in the side groove;
[0020] S4: Install the sub-template onto the square conductor portion, and insert the pins into the through holes of the sub-template;
[0021] S5: Place the mold in the sintering furnace and complete the glass sealing according to the process specifications.
[0022] Compared with related technologies, the sintering mold and its usage method for the core-post bending connector provided by the present invention have the following beneficial effects:
[0023] This invention provides a sintering mold for a core-pillar bending connector and its usage method. First, the outer conductor is installed into the mold base mechanism. Then, a glass blank, acting as an insulator, is placed into the through-hole of the outer conductor. Next, a pre-bent inner conductor is inserted through a through-hole on the glass blank, with the insertion end inserted into the pin hole and the bent end extending into the side groove. After installing the sub-mold onto the surface of the outer conductor, the entire mold is placed in a sintering furnace for sintering and sealing. By using the pre-bent inner conductor to sinter and seal with the glass blank and outer conductor (acting as insulators), bending before sintering is achieved. This reduces the risk of glass cracking associated with the traditional sintering-then-core-bending method, lowers the proportion of defective products, significantly improves the sintering yield, reduces material and resource waste, lowers production costs, and increases enterprise efficiency. Attached Figure Description
[0024] Figure 1 A schematic diagram of the main template of the sintering mold for the core-pillar bending connector provided by the present invention;
[0025] Figure 2 for Figure 1 A cross-sectional view of the main template shown.
[0026] Figure 3 A schematic diagram of the sub-template of the sintering mold for the core-pillar bending connector provided by the present invention;
[0027] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the sub-template shown;
[0028] Figure 5 A schematic diagram of the connector mechanism of the sintering mold for the core-post bending connector provided by the present invention;
[0029] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the connector mechanism.
[0030] The following are the labels in the diagram: 1. Main template, 2. Square groove, 3. Circular groove, 4. Boss, 5. Pin hole, 6. Side groove, 7. Sub-template, 8. Sub-template through hole, 9. Square conductor part, 10. Cylindrical conductor part, 11. Outer conductor through hole, 12. Insulator, 13. Pin, 14. Groove, 15. Inner conductor. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0032] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of the main template of the sintering mold for the core-pillar bending connector provided by the present invention; Figure 2 for Figure 1 A cross-sectional view of the main template shown. Figure 3 A schematic diagram of the sub-template of the sintering mold for the core-pillar bending connector provided by the present invention; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the sub-template shown; Figure 5 A schematic diagram of the connector mechanism of the sintering mold for the core-post bending connector provided by the present invention; Figure 6 for Figure 5 The diagram shows a cross-sectional view of the connector mechanism.
[0033] A sintering mold for a core-pillar bending connector includes a main template 1, a secondary template 7, and a connector mechanism. The main template 1 is provided with multiple mold base mechanisms, each including a square groove 2, a circular groove 3, a boss 4, a pin hole 5, and a side groove 6. The square groove 2 is formed on the surface of the main template 1, and the circular groove 3 is formed inside the main template 1 and located at the bottom of the square groove 2. The circular groove 3 is the inscribed circle of the square groove 2, and the top of the circular groove 3 is connected to the top of the square groove 2.
[0034] The boss 4 is located at the bottom of the inner cavity of the circular groove 3. The pin hole 5 is formed on the upper surface of the boss 4 and is a countersunk pin hole. The side groove 6 is formed on the surface of the main template 1 and is located on one side of the square groove 2. The rear end of the side groove 6 is connected to the square groove 2.
[0035] Multiple mold base mechanisms are evenly spaced on the main mold plate 1, allowing for the processing of multiple workpieces at once.
[0036] The surface of the sub-template 7 is provided with a plurality of sub-template through holes 8;
[0037] The connector mechanism includes an outer conductor, an inner conductor 15, and an insulator 12. The outer conductor includes an upper square conductor portion 9 and a bottom cylindrical conductor portion 10. An outer conductor through hole 11 is provided in the middle of the outer conductor. An insulator 12 is disposed inside the outer conductor through hole 11. The inner conductor 15 includes a bent end and a plug end. The plug end passes through the insulator 12 and extends to the bottom of the insulator 12. The bent end extends along the surface of the square conductor portion 9 to the outside of the outer conductor. A plurality of pins 13 are fixedly connected to the front side of the square conductor portion 9.
[0038] The outer conductor is a metal conductor, and the inner conductor 15 is a pre-bent metal pin, which is a bent cylinder. The metal pin is bent first and then sintered and sealed with the insulator 12 to prevent the glass from breaking due to sintering before bending.
[0039] The insulator 12 is a glass blank, which is sintered with the inner conductor 15 and the outer conductor to achieve glass sealing.
[0040] The dimensions of the square groove 2 are adapted to the dimensions of the square conductor portion 9, the inner diameter of the circular groove 3 is adapted to the outer diameter of the cylindrical conductor portion 10, and the positive tolerance of the adaptation is 0.02 to 0.05 mm. The total depth of the square groove 2 and the circular groove 3 is adapted to the total height of the outer conductor, and the negative tolerance of the adaptation is 0.03 to 0.05 mm.
[0041] The dimensions of the side groove 6 are adapted to the dimensions of the portion of the inner conductor 15 extending from the bent end to the outside of the outer conductor, with a positive tolerance of 0.02 to 0.05 mm. The depth of the side groove 6 is adapted to the diameter of the bent end of the inner conductor 15, with a negative tolerance of 0.03 to 0.05 mm.
[0042] The outer diameter of the boss 4 is adapted to the diameter of the outer conductor through hole 11, so that the cylindrical conductor part 10 can be fitted onto the outside of the boss 4. When the assembly is completed, the cylindrical conductor part 10 is fitted onto the outside of the boss 4 through the outer conductor through hole 11. The glass blank used to form the insulator 12 is located on the boss 4. A through hole is provided at the center of the glass blank. The insertion end of the inner conductor 15 is inserted into the pin hole 5 through the through hole.
[0043] The dimensions of the sub-template 7 are adapted to the dimensions of the square groove 2, with a positive tolerance of 0.05 to 0.1 mm, which can completely cover the surface of the square conductor portion 9.
[0044] The depth of the pin hole 5 is adapted to the length of the insertion end of the inner conductor 15 extending to the bottom of the insulator 12, with a positive tolerance of 0.01 to 0.02 mm. The inner diameter of the pin hole 5 is adapted to the diameter of the inner conductor 15, with a positive tolerance of 0.01 to 0.015 mm.
[0045] The inner diameter of the sub-mold through hole 8 on the surface of the sub-mold 7 is adapted to the outer diameter of the pin 13, with a positive tolerance of 0.03 to 0.05 mm, and the number and arrangement are the same.
[0046] The number of through holes 8 and pins 13 in the sub-mold is four each.
[0047] The surface of the square conductor portion 9 is provided with a groove 14 for the inner conductor 15 to extend out. After sintering, the surface of the bent end of the inner conductor 15 must not protrude from the surface of the square conductor portion 9.
[0048] A method for using a sintering mold for a core-post bending connector includes the following steps:
[0049] S1: The cylindrical conductor portion 10 of the outer conductor is placed into the mold base mechanism with the cylindrical conductor portion 10 facing the direction of the mold base mechanism. The cylindrical conductor portion 10 is located in the circular groove 3, and the square conductor portion 9 is located in the square groove 2.
[0050] S2: The glass blank, which serves as the insulator 12, is inserted into the outer conductor through hole 11, with the bottom of the glass blank contacting the top of the boss 4.
[0051] S3: Insert the plug end of the inner conductor 15 through the glass blank into the pin hole 5, and the bent end of the inner conductor 15 is located in the side groove 6; wherein, the inner conductor 15 is a pre-bent metal pin, which is bent before sintering to prevent the glass from breaking due to sintering before bending.
[0052] S4: Install the sub-template 7 onto the square conductor portion 9, and insert the pin 13 into the sub-template through hole 8;
[0053] S5: Place the mold in the sintering furnace and complete the glass sealing according to the process specifications.
[0054] Compared with related technologies, the sintering mold for a core-post bending connector and its usage method provided by the present invention have the following beneficial effects:
[0055] First, the outer conductor is installed into the mold base mechanism. Then, the glass blank, which serves as the insulator 12, is placed into the through hole 11 of the outer conductor. Next, the pre-bent inner conductor 15 is inserted through the through hole on the glass blank, with the insertion end inserted into the pin hole 5 and the bent end extending into the side groove 6. After the sub-template 7 is installed on the surface of the outer conductor, the entire mold is placed into the sintering furnace for sintering and sealing. By using the pre-bent inner conductor 15 to sinter and seal with the glass blank and outer conductor, the bending and sintering process is achieved. This reduces the risk of glass cracking caused by the traditional sintering and core bending process, reduces the proportion of defective products, greatly improves the sintering yield, reduces the waste of materials and resources, reduces production costs, and improves the efficiency of the enterprise.
[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A sintering mold for a core-pillar bending connector, comprising a main template (1), a secondary template (7), and a connector mechanism, characterized in that: The main template (1) is provided with multiple mold base mechanisms, the mold base mechanism including a square groove (2), a circular groove (3), a boss (4), a pin hole (5) and a side groove (6). The square groove (2) is opened on the surface of the main template (1), the circular groove (3) is opened inside the main template (1) and located at the bottom of the square groove (2), the boss (4) is set at the bottom of the inner cavity of the circular groove (3), the pin hole (5) is opened on the upper surface of the boss (4), and the side groove (6) is opened on the surface of the main template (1) and located on one side of the square groove (2). The surface of the sub-template (7) is provided with multiple sub-template through holes (8); The connector mechanism includes an outer conductor, an inner conductor (15), and an insulator (12). The outer conductor includes a square conductor portion (9) at the top and a cylindrical conductor portion (10) at the bottom. An outer conductor through hole (11) is provided in the middle of the outer conductor. An insulator (12) is provided inside the outer conductor through hole (11). The inner conductor (15) includes a bent end and a plug end. The plug end passes through the insulator (12) and extends to the bottom of the insulator (12). The bent end extends along the surface of the square conductor portion (9) to the outside of the outer conductor. Multiple pins (13) are fixedly connected to the front of the square conductor portion (9). The dimensions of the square groove (2) are adapted to the dimensions of the square conductor portion (9), the inner diameter of the circular groove (3) is adapted to the outer diameter of the cylindrical conductor portion (10), and the total depth of the square groove (2) and the circular groove (3) is adapted to the total height of the outer conductor; the dimensions of the side groove (6) are adapted to the dimensions of the portion of the inner conductor (15) extending to the outside of the outer conductor; the outer diameter of the boss (4) is adapted to the diameter of the through hole (11) of the outer conductor, so that the cylindrical conductor portion (10) can be fitted onto the outside of the boss (4); the dimensions of the sub-template (7) are adapted to the dimensions of the square groove. (2) The dimensions are compatible; the depth of the pin hole (5) is compatible with the length of the insertion end of the inner conductor (15) extending to the bottom of the insulator (12); the inner diameter of the pin hole (5) is compatible with the diameter of the inner conductor (15); the inner diameter of the sub-mold through hole (8) on the surface of the sub-template (7) is compatible with the outer diameter of the pin (13), and the number and arrangement are the same; the surface of the square conductor part (9) is provided with a groove (14) for the inner conductor (15) to extend out; after sintering, the surface of the bent end of the inner conductor (15) is required not to protrude from the surface of the square conductor part (9).
2. The method of using the sintering mold for a core-post bending connector as described in claim 1, characterized in that, Includes the following steps: S1: The cylindrical conductor portion (10) of the outer conductor is placed into the mold base mechanism with the cylindrical conductor portion (10) facing outwards. The cylindrical conductor portion (10) is located in the circular groove (3), and the square conductor portion (9) is located in the square groove (2). S2: The glass blank, which serves as an insulator (12), is inserted into the outer conductor through hole (11), with the bottom of the glass blank contacting the top of the boss (4); S3: Insert the plug end of the inner conductor (15) through the glass blank into the plug hole (5), and the bent end of the inner conductor (15) is located in the side groove (6); S4: Install the sub-template (7) onto the square conductor part (9), and insert the pin (13) into the sub-template through hole (8); S5: Place the mold in the sintering furnace and complete the glass sintering and sealing according to the process specifications.