CN212965039U - Test fixture for microwave circulator and isolator - Google Patents
Test fixture for microwave circulator and isolator Download PDFInfo
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- CN212965039U CN212965039U CN202021317786.7U CN202021317786U CN212965039U CN 212965039 U CN212965039 U CN 212965039U CN 202021317786 U CN202021317786 U CN 202021317786U CN 212965039 U CN212965039 U CN 212965039U
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Abstract
The utility model discloses a test fixture of microwave circulator, isolator, including test briquetting, base, quick anchor clamps and testboard are located on the base respectively and quick anchor clamps are located the testboard top, still include elastic buffer, and quick anchor clamps pass through elastic buffer and connect the test briquetting, are equipped with the portion of pressing that is used for pressing PIN needle on the test briquetting. The quick clamp is connected with the test pressing block through the elastic buffer device, so that the pressing part can better press the PIN needle, the conduction stability of the PIN needle and the test bench is further improved, and the reliability of the test result of the circulator/isolator is improved.
Description
Technical Field
The utility model relates to a radio frequency microwave ferrite device field especially relates to a test fixture of microwave circulator, isolator.
Background
A circulator and isolator for radio-frequency microwave band line is a microwave ferrite device with large market consumption at present, which is a microwave device designed by mainly utilizing the nonreciprocal characteristic presented by the action of vertically magnetized ferrite and microwave signals.
When testing the electrical performance of microwave band line circulator and isolator, it is general to press the circulator/isolator casing or the top of the circulator/isolator by the fast fixture connected with the press head, and directly contact the PCB and the test block, so as to achieve the purpose of electrical performance test. However, poor contact between the circulator/isolator PINs (i.e. PIN PINs) and the microstrip lines on the PCB often occurs in such tests, so that the reliability of the test result of the circulator/isolator is poor. In addition, when the staff assembles the surface-mounted circulator/isolator, a presser foot process (the vertexes of a plurality of PIN needles are positioned on the same plane) exists, and the presser foot process takes more staff and time, and the production efficiency of the circulator/isolator is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the test fixture for the microwave circulator and the isolator is provided for testing the reliability of the result.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a test fixture of microwave circulator, isolator, includes test briquetting, base, quick anchor clamps and testboard are located respectively on the base and quick anchor clamps are located the testboard top, still include elastic buffer, quick anchor clamps pass through elastic buffer connects the test briquetting, be equipped with the portion of pressing that is used for pressing PIN needle on the test briquetting.
Furthermore, the number of the pressing parts is multiple, and the bottom surfaces of the pressing parts in multiple numbers are coplanar and arranged parallel to the top surface of the test board.
Furthermore, two adjacent pressing parts are arranged at intervals to form an avoiding groove.
Furthermore, the middle area of the bottom surface of the test pressing block is provided with a collision part.
Furthermore, the elastic buffer device comprises an upper fixing block, a lower fixing block and an elastic assembly, the upper fixing block is located above the lower fixing block, and the elastic assembly is connected with the upper fixing block and the lower fixing block.
Furthermore, the elastic buffer device further comprises a connecting bolt connected with the test pressing block, a counter bore matched with the connecting bolt is formed in the upper fixing block, and a through hole for the connecting bolt to penetrate through is formed in the lower fixing block.
Further, the elastic component comprises a compression spring.
Furthermore, the elastic component further comprises a connecting column which is respectively in limit connection with the upper fixing block and the lower fixing block, the two ends of the connecting column are respectively provided with the pressure springs, one pressure spring respectively supports against the upper fixing block and the connecting column, and the other pressure spring respectively supports against the lower fixing block and the connecting column.
Further, still include positioner, positioner includes anchor clamps fixed plate and a plurality of support column, anchor clamps fixed plate slip cap is established on the support column, the output of rapid fixture is connected the anchor clamps fixed plate.
Furthermore, the top of support column is equipped with screw thread portion, be connected with stop nut on the screw thread portion, stop nut is located the top of anchor clamps fixed plate.
The beneficial effects of the utility model reside in that: the quick clamp is connected with the test pressing block through the elastic buffer device, so that the pressing part can better press the PIN needle, the conduction stability of the PIN needle and the test bench is further improved, and the reliability of the test result of the circulator/isolator is improved.
Drawings
Fig. 1 is a schematic structural diagram of a test fixture for a microwave circulator and an isolator according to a first embodiment of the present invention;
fig. 2 is an exploded view of a test fixture for a microwave circulator and an isolator according to a first embodiment of the present invention.
Description of reference numerals:
1. testing the pressing block; 11. a pressing part; 12. a contact part;
2. a base;
3. a rapid clamp;
4. a test bench; 41. a table body; 42. a PCB board; 43. a joint;
5. an elastic buffer device; 51. an upper fixed block; 511. a counter bore; 52. a lower fixed block; 521. perforating; 53. a connecting bolt; 54. a pressure spring; 55. connecting columns;
6. a positioning device; 61. fixing a clamp plate; 62. a support pillar; 63. a limit nut;
7. microwave circulators/isolators.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
In practical terms, the isolator has two ports, and the circulator has three ports, but when any one port of the circulator is connected with a load, the circulator becomes the isolator.
Referring to fig. 1 and 2, a test fixture for a microwave circulator and an isolator includes a test pressing block 1, a base 2, a rapid fixture 3, a test table 4, the rapid fixture 3 and the test table 4 are respectively disposed on the base 2, the rapid fixture 3 is disposed above the test table 4, the test fixture further includes an elastic buffer device 5, the rapid fixture 3 is connected to the test pressing block 1 through the elastic buffer device 5, and a pressing portion 11 for pressing a PIN is disposed on the test pressing block 1.
From the above description, the beneficial effects of the present invention are: the testing pressing block 1 is provided with the abutting part 11 for abutting against the PIN needle, so that the PIN needle of the microwave circulator and the isolator can be in good contact with the microstrip line on the testing table 4, the conduction stability of the PIN needle and the testing table 4 is improved, the reliability of the testing result of the circulator/isolator is improved, the rapid clamp 3 is connected with the testing pressing block 1 through the elastic buffer device 5, the PIN needle can be well abutted against the abutting part 11, the conduction stability of the PIN needle and the testing table 4 is further improved, and the reliability of the testing result of the circulator/isolator is improved.
Furthermore, the number of the pressing parts 11 is multiple, and the bottom surfaces of the pressing parts 11 in multiple numbers are coplanar and arranged parallel to the top surface of the test bench 4.
According to the description, staff do not need to perform a presser foot process when assembling the surface-mounted circulator/isolator, the presser foot process can be completed by the test fixture when testing the electrical performance of the circulator/isolator, the assembling process of the circulator/isolator is simplified, and the production efficiency and the yield of the circulator/isolator are improved.
Further, two adjacent pressing portions 11 are arranged at intervals to form an avoiding groove.
According to the above description, the peripheral wall of the circulator/isolator is provided with the notch corresponding to the position of the PIN, the pressing portions 11 are arranged corresponding to the notch, and the avoiding groove between two adjacent pressing portions 11 can avoid other areas of the peripheral wall of the circulator/isolator except the notch.
Furthermore, the middle area of the bottom surface of the test pressing block 1 is provided with a collision part 12.
As can be seen from the above description, the interference portion 12 is used to press against the top end of the peripheral wall of the stacked assembly or the circulator/isolator at the center of the circulator/isolator.
Further, the elastic buffer device 5 includes an upper fixed block 51, a lower fixed block 52 and an elastic component, the upper fixed block 51 is located above the lower fixed block 52, and the elastic component connects the upper fixed block 51 and the lower fixed block 52.
As can be seen from the above description, the elastic buffer device 5 has a simple structure, is easy to manufacture, and has good operation stability.
Further, the elastic buffer device 5 further comprises a connecting bolt 53 connected with the test press block 1, a counter bore 511 matched with the connecting bolt 53 is arranged on the upper fixing block 51, and a through hole 521 for the connecting bolt 53 to pass through is arranged on the lower fixing block 52.
As can be seen from the above description, the step surface of the counter bore 511 can limit the maximum downward stroke of the test pressing block 1, which is beneficial to ensuring the structural stability of the test fixture.
Further, the elastic member includes a compression spring 54.
Furthermore, the elastic component further comprises a connecting column 55 which is respectively connected with the upper fixing block 51 and the lower fixing block 52 in a limiting manner, two ends of the connecting column 55 are respectively provided with the compression springs 54, one compression spring 54 respectively supports against the upper fixing block 51 and the connecting column 55, and the other compression spring 54 respectively supports against the lower fixing block 52 and the connecting column 55.
As can be seen from the above description, the two ends of the connection column 55 are respectively connected to the upper and lower fixing blocks 52 in a limiting manner by screws (the screws are connected to the upper and lower fixing blocks 52 in a limiting manner but not in a screw connection), and the crimping force of the test fixture can be adjusted by adjusting the tightness of the compression springs 54, in short, the compression springs 54 with different lengths or the compression springs 54 with different elastic moduli can be replaced to adjust the crimping force of the test fixture.
Further, still include positioner 6, positioner 6 includes anchor clamps fixed plate 61 and a plurality of support column 62, anchor clamps fixed plate 61 slip cover is established on support column 62, the output of rapid fixture 3 is connected anchor clamps fixed plate 61.
As can be seen from the above description, the positioning device 6 can realize accurate positioning of the rapid clamp 3, and is favorable for ensuring the working stability of the test clamp.
Further, the top end of the supporting column 62 is provided with a threaded portion, the threaded portion is connected with a limiting nut 63, and the limiting nut 63 is located above the fixture fixing plate 61.
As can be seen from the above description, the tester can conveniently replace the rapid clamp 3, and choose to mount the appropriate rapid clamp 3 on the base 2, thereby implementing the electrical performance test of circulators and isolators with different heights.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the utility model provides a test fixture of microwave circulator, isolator for test microwave circulator/isolator 7's electrical property, it includes test briquetting 1, base 2, quick anchor clamps 3 and testboard 4 are located respectively on the base 2 and quick anchor clamps 3 are located testboard 4 top, still include elastic buffer 5, quick anchor clamps 3 pass through elastic buffer 5 connects test briquetting 1, be equipped with the portion of pressing 11 that is used for pressing the PIN needle on the test briquetting 1.
The testing table 4 in the prior art can be selected as the testing table 4, and includes a table body 41, a PCB 42 disposed on the top surface of the table body 41, and a connector 43 disposed on the side surface of the table body 41, where the PCB 42 is provided with a microstrip line electrically connected to the connector 43, and a contact for conducting with a PIN of a microwave circulator or an isolator, and the contact is electrically connected to the microstrip line.
The number of the pressing parts 11 is multiple, the bottom surfaces of the pressing parts 11 are coplanar and arranged parallel to the top surface of the test board 4, two adjacent pressing parts 11 are arranged at intervals to form an avoiding groove, and the middle area of the bottom surface of the test pressing block 1 is provided with a collision part 12. In this embodiment, the number of the pressing portions 11 is three, and the three pressing portions 11 form a ring. Preferably, the pressing part 11, the interference part 12 and the test pressing block 1 are of an integrated structure.
Specifically, the elastic buffer device 5 comprises an upper fixed block 51, a lower fixed block 52 and an elastic component, the upper fixed block 51 is located above the lower fixed block 52, the lower fixed block 52 presses against the test pressing block 1, and the elastic component is connected with the upper fixed block 51 and the lower fixed block 52. More specifically, the elastic buffer device 5 further includes a connecting bolt 53 connected to the test press block 1, the upper fixing block 51 is provided with a counter bore 511 matched with the connecting bolt 53, the lower fixing block 52 is provided with a through hole 521 for the connecting bolt 53 to pass through, and the connecting bolt 53 can be an M4 socket head cap screw. In this embodiment, the elastic component includes a compression spring 54 and a connection column 55 respectively connected to the upper fixed block 51 and the lower fixed block 52 in a limiting manner, the compression springs 54 are respectively disposed at two ends of the connection column 55, one of the compression springs 54 respectively abuts against the upper fixed block 51 and the connection column 55, and the other compression spring 54 respectively abuts against the lower fixed block 52 and the connection column 55. In order to ensure the operational stability of the spring-damper arrangement 5, the spring assembly is erected in a plurality, for example two, spaced apart.
Still including locating positioner 6 on base 2, positioner 6 includes anchor clamps fixed plate 61 and a plurality of support column 62, anchor clamps fixed plate 61 slides the cover and establishes on the support column 62, the point of support column 62 is fixed on base 2, the output of rapid fixture 3 is connected anchor clamps fixed plate 61, positioner 6 set up and to let test briquetting 1 counterpoint more accurately with microwave circulator, isolator. In detail, a threaded portion is arranged at the top end of the supporting column 62, a limiting nut 63 is connected to the threaded portion, and the limiting nut 63 is located above the fixture fixing plate 61. In more detail, the fixture fixing plate 61 seals the counter bore 511 of the upper fixing block 51, that is, the counter bore 511 is not visible outside the test fixture, so that foreign matters can be prevented from entering the counter bore 511, and the work stability of the test fixture can be ensured.
To sum up, the utility model provides an among the test fixture of microwave circulator, isolator, set up the portion of supporting that is used for supporting pressing the PIN needle on the test briquetting, make microwave circulator, the PIN needle of isolator can with the realization of the microstrip line on the testboard good contact, improve the stability that PIN needle and testboard switched on, thereby improve circulator/isolator test result's reliability, quick anchor clamps pass through elastic buffer and test briquetting is connected moreover, make the portion of supporting to press the PIN needle better, thereby further improve the stability that PIN needle and testboard switched on, improve circulator/isolator test result's reliability. The presser foot process can be completed by the test fixture when testing the electrical property of the circulator/isolator, thus simplifying the assembly process of the circulator/isolator and being beneficial to improving the production efficiency and the yield of the circulator/isolator.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a test fixture of microwave circulator, isolator, includes test briquetting, base, quick anchor clamps and testboard are located respectively on the base and quick anchor clamps are located the testboard top, its characterized in that: the rapid clamp is connected with the test pressing block through the elastic buffer device, and a pressing part used for pressing the PIN needle is arranged on the test pressing block.
2. The test fixture for microwave circulators and isolators according to claim 1, wherein: the number of the pressing parts is multiple, and the bottom surfaces of the pressing parts in multiple numbers are coplanar and arranged in parallel to the top surface of the test board.
3. The test fixture for microwave circulators and isolators according to claim 2, wherein: two adjacent abutting portions are arranged at intervals to form an avoiding groove.
4. The test fixture for microwave circulators and isolators according to claim 1, wherein: and the middle area of the bottom surface of the test pressing block is provided with a collision part.
5. The test fixture for microwave circulators and isolators according to claim 1, wherein: the elastic buffer device comprises an upper fixing block, a lower fixing block and an elastic assembly, the upper fixing block is located above the lower fixing block, and the elastic assembly is connected with the upper fixing block and the lower fixing block.
6. The test fixture for microwave circulators and isolators according to claim 5, wherein: the elastic buffer device further comprises a connecting bolt connected with the test pressing block, a counter bore matched with the connecting bolt is formed in the upper fixing block, and a through hole for the connecting bolt to penetrate through is formed in the lower fixing block.
7. The test fixture for microwave circulators and isolators according to claim 5, wherein: the elastic component comprises a pressure spring.
8. The test fixture for microwave circulators and isolators according to claim 7, wherein: the elastic component further comprises connecting columns which are respectively in limit connection with the upper fixing block and the lower fixing block, the two ends of each connecting column are respectively provided with the pressure springs, one pressure spring respectively supports against the upper fixing block and the connecting column, and the other pressure spring respectively supports against the lower fixing block and the connecting column.
9. The test fixture for microwave circulators and isolators according to claim 1, wherein: the fixture comprises a fixture fixing plate and a plurality of supporting columns, the fixture fixing plate is slidably sleeved on the supporting columns, and the output end of the rapid fixture is connected with the fixture fixing plate.
10. The test fixture for microwave circulators and isolators according to claim 9, wherein: the top of support column is equipped with screw thread portion, be connected with stop nut on the screw thread portion, stop nut is located the top of anchor clamps fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317786.7U CN212965039U (en) | 2020-07-07 | 2020-07-07 | Test fixture for microwave circulator and isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317786.7U CN212965039U (en) | 2020-07-07 | 2020-07-07 | Test fixture for microwave circulator and isolator |
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| Publication Number | Publication Date |
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| CN212965039U true CN212965039U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021317786.7U Active CN212965039U (en) | 2020-07-07 | 2020-07-07 | Test fixture for microwave circulator and isolator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484708A (en) * | 2021-09-08 | 2021-10-08 | 中国电子科技集团公司第九研究所 | High-efficiency voltage-withstanding testing device for circulator/isolator |
-
2020
- 2020-07-07 CN CN202021317786.7U patent/CN212965039U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484708A (en) * | 2021-09-08 | 2021-10-08 | 中国电子科技集团公司第九研究所 | High-efficiency voltage-withstanding testing device for circulator/isolator |
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