Test fixture for directional microphone
By designing a directional microphone test fixture with a card block and an inclined card slot, the problem of long multi-angle testing time in the prior art is solved, and the angle switching speed and test efficiency are improved.
Patent Information
- Application Number
- CN202421229585.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the prior art, the multi-angle curve performance test of directional microphones requires frequent angle adjustment, resulting in long test time and low efficiency.
A test fixture including a bracket and a fixed base is designed. There is a card block at the bottom of the bracket, a card slot with an inclination angle of 135° on the top of the bracket, and a bracket slot and a test component at the top of the bracket. Through the coordination of the card block and the card slot, a test can be quickly switched to different angles.
The angle switching speed is improved, the test time of a single product is shortened, the production line testing speed is significantly improved, and the directional microphone is quickly removed through structures such as lifting rings.
Smart Images
Figure CN222582598U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of directional microphone testing tooling, and more specifically to a testing fixture for a directional microphone. Background Art
[0002] After the directional microphone is assembled, it is necessary to conduct curve performance tests at multiple angles. When operating, production line personnel need a reasonable test fixture to facilitate multi-angle testing operations.
[0003] The current testing method is to use a turntable to switch different angles. When rotating and switching, the turntable needs to rotate continuously, which is slow, and sometimes it needs to be called back repeatedly when the angle is turned, which takes more time. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a test fixture for a directional microphone to solve the problems existing in the above-mentioned background technology.
[0005] The utility model provides the following technical solution: a test fixture for a directional microphone, comprising a bracket and a fixed base, the bottom end of the bracket is integrally formed with a card block, the top of the fixed base is provided with a card slot 1 and a card slot 2, and the card slot 1 is communicated with the card slot 2, the inclination angle of the card slot 1 and the card slot 2 is 135°, the top of the bracket is provided with a support groove for supporting and fixing the directional microphone, and a test component is provided on one side of the bracket.
[0006] As a further solution of the utility model, the test assembly includes two sliding shafts, which are inserted into one side of the bracket, one end of the sliding shaft is fixedly connected to a limiting block, a spring sleeved on the outside of the sliding shaft is fixedly connected between the limiting block and the bracket, the other end of the two sliding shafts is provided with a probe fixing plate, and the top of the probe fixing plate is provided with a plurality of test probes for testing the directional microphone.
[0007] As a further solution of the utility model, a threaded hole is provided at the bottom end of the fixed base.
[0008] As a further solution of the utility model, it also includes an embedding groove 1, which is opened on the inner wall of the supporting groove. A top plate is provided in the embedding groove 1, and two top rods are fixedly connected to the bottom end of the top plate, and the bottom ends of the top rods pass through the bracket.
[0009] As a further solution of the utility model, a lifting ring is fixedly connected between the bottom ends of the two push rods.
[0010] As a further solution of the utility model, two embedding grooves 2 are provided on the bottom inner walls of the card slots 1 and 2 provided on the fixed base, and magnetic blocks are fixedly connected in the two embedding grooves 2.
[0011] As a further solution of the utility model, the highest points of the two magnetic blocks are lower than the bottom inner walls of the first and second card slots.
[0012] Technical effects and advantages of the utility model:
[0013] 1. The utility model facilitates the testing operation of production line personnel through the improved test fixture. The tester only needs to put the fixture into the base in a certain direction to switch the angle test without repeatedly adjusting the angle.
[0014] 2. The improved test fixture of the utility model has a faster angle switching speed, shortens the test time of a single product, and significantly improves the test speed of the production line.
[0015] 3. The utility model drives the top rod and the top plate to move upward through the lifting ring and props up the directional microphone in the supporting groove, so that the tester can quickly take out the directional microphone. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the front three-dimensional structure of Example 1 of the utility model.
[0017] Figure 2 This is a schematic diagram of the three-dimensional exploded structure of Example 1 of the utility model.
[0018] Figure 3 This is a schematic diagram of the internal structure of the fixed base of Example 1 of the utility model.
[0019] Figure 4 This is a schematic diagram of the bottom structure of the fixed base of Example 1 of the utility model.
[0020] Figure 5 This is a schematic diagram of the front three-dimensional structure of Example 2 of the utility model.
[0021] Figure 6 It is a partial enlarged structural schematic diagram of Example 2 of the utility model.
[0022] Figure 7 This is a schematic diagram of the internal structure of the fixed base of Example 2 of the utility model.
[0023] The accompanying drawings are marked as follows: 1. limit block; 2. spring; 3. bracket; 4. fixed base; 5. support groove; 6. test probe; 7. sliding shaft; 8. probe fixing plate; 9. clamping block; 10. clamping slot 1; 11. clamping slot 2; 12. threaded hole; 13. push rod; 14. embedded slot 1; 15. top plate; 16. pull ring; 17. magnetic block; 18. embedded slot 2. DETAILED DESCRIPTION
[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0025] Example 1
[0026] Reference Figure 1-Figure 4 The utility model provides a test fixture for a directional microphone, comprising a bracket 3 and a fixed base 4, wherein a card block 9 is integrally formed at the bottom end of the bracket 3, a card slot 10 and a card slot 2 11 are provided at the top of the fixed base 4, and the card slot 10 is connected to the card slot 2 11, and the inclination angle of the card slot 10 and the card slot 2 11 is 135°, a support groove 5 for supporting and fixing the directional microphone is provided at the top of the bracket 3, and a test assembly is provided on one side of the bracket 3, so that the directional microphone to be tested can be tested by placing the directional microphone Place it in the support groove 5, then insert the card block 9 into the card slot 2 11 opened in the fixed base 4, and then test it through the test component. When the curve test is performed, the three angles of 0°, 135°, and 180° will be tested. Therefore, you only need to pull out the card block 9, rotate it, and then insert it into the card slot 1 10 with an inclination angle of 135°, or directly rotate it 180° and then reinsert it into the card slot 2 11, so as to realize the curve test of the three angles of 0°, 135°, and 180°. It is simple and convenient to use.
[0027] In the utility model, the test assembly includes two sliding shafts 7, the sliding shafts 7 are inserted on one side of the bracket 3, one end of the sliding shaft 7 is fixed with a limit block 1 by bolts, a spring 2 which is sleeved on the outside of the sliding shaft 7 is fixed between the limit block 1 and the bracket 3 by bolts, the other ends of the two sliding shafts 7 are provided with a probe fixing plate 8, and the top of the probe fixing plate 8 is provided with a plurality of test probes 6 for testing the directional microphone, so that the test operation is performed through the cooperation of the spring 2, the sliding shaft 7 and the test probes 6 arranged on the probe fixing plate 8.
[0028] In the present invention, a threaded hole 12 is provided at the bottom end of the fixed base 4, so as to facilitate fixing the fixed base 4 to the workbench.
[0029] The working principle of the utility model is as follows: when in use, the directional microphone to be tested is placed in the supporting groove 5, and then the card block 9 is inserted into the card slot 2 11 provided in the fixed base 4, and then the test is performed through the test assembly. When the curve test is performed, the three angles of 0°, 135° and 180° will be tested. Therefore, it is only necessary to pull out the card block 9, rotate it and insert it into the card slot 1 10 with an inclination angle of 135°, or directly rotate it 180° and then reinsert it into the card slot 2 11, so as to realize the curve test of the three angles of 0°, 135° and 180°. The use is simple and convenient.
[0030] Example 2
[0031] Reference Figure 5-Figure 7 The utility model provides a test fixture for a directional microphone, which also includes an embedding groove 14, which is opened on the inner wall of the supporting groove 5. A top plate 15 is arranged in the embedding groove 14, and two top rods 13 are fixed to the bottom end of the top plate 15 by bolts, and the bottom ends of the top rods 13 pass through the bracket 3, and a lifting ring 16 is fixed between the bottom ends of the two top rods 13 by bolts. After the test is completed, by pushing the lifting ring 16, the lifting ring 16 drives the top rod 13 and the top plate 15 to move upward and prop up the directional microphone in the supporting groove 5, so as to facilitate the tester to quickly take out the directional microphone.
[0032] In the utility model, two embedded grooves 18 are provided on the bottom inner walls of the slots 10 and 11 of the fixed base 4, and magnetic blocks 17 are fixed in the two embedded grooves 18 by bolts. The highest points of the two magnetic blocks 17 are lower than the bottom inner walls of the slots 10 and 11, so that the block 9 is magnetically fixed by the magnetic blocks 17, which effectively improves the stability of the bracket 3 during installation.
[0033] The working principle of the utility model is as follows: when in use, the clamping block 9 can be magnetically fixed by the magnetic block 17, which effectively improves the stability of the bracket 3 during installation. After the detection is completed, by pushing the lifting ring 16, the lifting ring 16 drives the top rod 13 and the top plate 15 to move upward and support the directional microphone in the supporting groove 5, so as to facilitate the tester to quickly take out the directional microphone.
[0034] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;
[0035] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
Claims
1. A test fixture for a directional microphone, comprising a bracket (3) and a fixed base (4), characterized in that: The bottom end of the bracket (3) is integrally formed with a card block (9); the top of the fixed base (4) is provided with a card slot 1 (10) and a card slot 2 (11); the card slot 1 (10) is connected to the card slot 2 (11); the card slot 1 (10) and the card slot 2 (11) are inclined at an angle of 135°; the top end of the bracket (3) is provided with a support groove (5) for supporting and fixing the directional microphone; and a test assembly is provided on one side of the bracket (3).
2. The test fixture for a directional microphone according to claim 1, characterized in that: The test assembly comprises two sliding shafts (7), the sliding shafts (7) are inserted into one side of a bracket (3), one end of the sliding shaft (7) is fixedly connected to a limit block (1), a spring (2) sleeved on the outside of the sliding shaft (7) is fixedly connected between the limit block (1) and the bracket (3), and the other ends of the two sliding shafts (7) are provided with a probe fixing plate (8), and the top of the probe fixing plate (8) is provided with a plurality of test probes (6) for testing the directional microphone.
3. The test fixture for a directional microphone according to claim 1, characterized in that: A threaded hole (12) is provided at the bottom end of the fixed base (4).
4. The test fixture for a directional microphone according to claim 1, characterized in that: It also includes an embedding groove (14) which is opened on the inner wall of the support groove (5). A top plate (15) is arranged in the embedding groove (14). The bottom end of the top plate (15) is fixedly connected to two top rods (13), and the bottom ends of the top rods (13) pass through the bracket (3).
5. The test fixture for a directional microphone according to claim 4, characterized in that: A lifting ring (16) is fixedly connected between the bottom ends of the two top rods (13).
6. The test fixture for a directional microphone according to claim 4, characterized in that: The bottom inner walls of the first card slot (10) and the second card slot (11) provided on the fixed base (4) are provided with two second embedding slots (18), and magnetic blocks (17) are fixedly connected in the two second embedding slots (18).
7. The test fixture for a directional microphone according to claim 6, characterized in that: The highest points of the two magnetic blocks (17) are both lower than the bottom inner walls of the first card slot (10) and the second card slot (11).