LTCC (Low Temperature Co-Fired Ceramic) material test fixture

Abstract

The utility model relates to the technical field of test fixtures, in particular to an LTCC (Low Temperature Co-Fired Ceramic) material test fixture, which comprises a base, the upper side of the base is fixedly connected with two U-shaped seats which are symmetrically arranged, the inner side surfaces of the two U-shaped seats are rotationally connected with double-end screw rods, the outer surfaces of the two double-end screw rods are in threaded connection with two threaded plates which are symmetrically arranged, and the two threaded plates are in threaded connection with the two U-shaped seats. According to the LTCC material clamping device, the two threaded plates move oppositely so that the LTCC material clamping device can adapt to LTCC materials with different widths, then the elastic sliding base can be flexibly moved and adjusted, the LTCC materials can be clamped into the four clamping bases provided with the second springs, and the LTCC materials can be clamped into the clamping bases provided with the second springs. In this way, LTCC materials of different sizes can be elastically positioned, the applicability of the testing clamp is improved, meanwhile, the supporting base provided with the third spring and the four elastic clamping bases are used for buffering the contact pressure of the testing needle plate on the LTCC materials, the LTCC materials are conveniently buffered and protected, and the safety of the LTCC materials during detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of testing fixtures, in particular to a LTCC material testing fixture. Background Art

[0002] The test fixture can accurately test the product to ensure that the product meets the design requirements and quality standards. By using the test fixture, the circuit connection of the LTCC material can be detected, and defects and problems in the product can be discovered in time to prevent unqualified products from entering the market, thereby improving product quality and reliability.

[0003] The prior art discloses patent application number "CN201520398545.2", which is an LTCC filter test fixture, including a test board which is a rectangular circuit board, with metal layers plated on both the upper and lower surfaces of the test board. The test board is electrically connected to the LTCC filter to be tested and is used to test the device performance of the LTCC filter to be tested. By using the test board and the straight-through calibration board to jointly test the LTCC filter, damage to the LTCC filter caused by welding is avoided, and the LTCC filter can be tested more accurately without damaging the device, meeting the requirements of component reliability screening and testing.

[0004] This test fixture can only prevent the LTCC filter from being damaged by welding. However, in actual use, since the test fixture can usually only position LTCC materials of the same size, when LTCC materials of different sizes need to be tested, the LTCC materials cannot be flexibly positioned, thereby affecting the applicability of the test fixture and making it inconvenient to use. Utility Model Content

[0005] The purpose of the present utility model is to provide a LTCC material testing fixture to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A LTCC material testing fixture includes a base, wherein the upper side of the base is fixedly connected to two symmetrically arranged U-shaped seats, the inner side surfaces of the two U-shaped seats are rotatably connected to double-ended screws, the outer surfaces of the two double-ended screws are threadedly connected to two symmetrically arranged threaded plates, the interiors of the four threaded plates are connected to cross bars, and the outer surfaces of the four cross bars are slidably connected to slide seats;

[0008] The upper sides of the four slides are slidably connected to a clamping seat, a second spring is connected between the clamping seat and the slide, the inside of the four clamping seats is clamped with the LTCC material body, the inside of the four clamping seats is connected to a sponge pad, the first spring is fixedly connected between the slide and the threaded plate, and the inner sides of the two U-shaped seats are connected to two parallel limit rods.

[0009] Preferably, a U-shaped fixing plate is fixedly installed in the middle of the upper side of the base, a bolt is threadedly connected to the lower side of the U-shaped fixing plate, the upper side of the bolt passes through the U-shaped fixing plate and extends to the upper side of the U-shaped fixing plate, a disc is fixed on the upper side of the bolt, a third spring is connected to the upper side of the disc in an array, and a support seat for supporting the LTCC material body is installed on the upper side of the third spring.

[0010] Preferably, a support plate is installed on the upper side of the base, and the front side of the support plate is fixedly connected to the test fixture body by screws. A mounting seat is fixedly provided on the lower side of the test fixture body, and two elastic clips are connected to the bottom end of the inside of the mounting seat. A card block is clamped on the lower side of the mounting seat, and two positioning pins for fixing the card block are slidably clamped on the front side of the mounting seat. The rear side of the positioning pins passes through the card block and extends to the rear side of the mounting seat, and a test needle plate is fixed on the lower side of the card block.

[0011] Preferably, the front side of the support plate is fixedly connected to a horizontal plate, two slide bars are installed between the horizontal plate and the base, the rear side of the test needle plate is connected to two slide plates, and the outer surfaces of the two slide bars are slidably connected to the inner parts of the slide plates.

[0012] Preferably, the front side of the double-headed screw rod passes through the U-shaped seat and extends to the front side of the U-shaped seat, the front sides of the two double-headed screw rods are installed with connecting hand wheels, the lower side of the clamping seat passes through the clamping seat and extends to the lower side of the clamping seat, and the outer surfaces of the two limit rods are slidably connected to the inside of the threaded plate.

[0013] Preferably, both ends of the card block are provided with card slots, the card slots are adapted to the elastic card buckles, and the inner side surfaces of the elastic card buckles are connected to the two ends of the card block through the card slots.

[0014] Beneficial effects of the utility model:

[0015] 1. This utility model accommodates LTCC materials of varying widths by moving two threaded plates toward each other. Subsequently, a resilient slide allows for flexible movement and adjustment, allowing the LTCC material to be snapped into place between four clamping seats equipped with a second spring. This allows for flexible positioning of LTCC materials of varying sizes, improving the applicability of the test fixture. Furthermore, the support seat equipped with a third spring and the four resilient clamping seats are used to cushion the contact pressure of the test needle plate on the LTCC material, thereby protecting the material and ensuring safety during LTCC material testing.

[0016] 2. The utility model can firmly position the card block by using two elastic clips and two positioning pins to clamp and fix the test needle plate, thereby facilitating the loading and unloading of test needle plates of different sizes to detect LTCC materials of different sizes. At the same time, pressing the test fixture body downward drives the test needle plate to move downward and contact the circuit on the LTCC material to detect the circuit connection status. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the middle disc, the third spring and the support seat;

[0020] Figure 3 This utility model Figure 2 Installation diagram of the middle clamp seat and the second spring;

[0021] Figure 4 This utility model Figure 1 Installation diagram of the middle slide bar and slide plate;

[0022] Figure 5 This utility model Figure 4 Installation diagram of the middle elastic buckle, positioning pin and card block;

[0023] The reference numerals in the figures are as follows:

[0024] 1. Base; 2. U-shaped seat; 3. Support plate; 4. Test fixture body; 5. Mounting seat; 6. Double-ended screw; 7. Threaded plate; 8. Cross bar; 9. Slide seat; 10. First spring; 11. Clamp seat; 12. Second spring; 13. LTCC material body; 14. Sponge pad; 15. Connecting handwheel; 16. Limit rod; 17. U-shaped fixing plate; 18. Bolt; 19. Disc; 20. Third spring; 21. Support seat; 22. Block; 23. Elastic buckle; 24. Test pin plate; 25. Positioning column; 26. Cross plate; 27. Slide bar; 28. Slide plate; 100. Card slot. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figures 1 to 5As shown, a LTCC material testing fixture includes a base 1, two symmetrically arranged U-shaped seats 2 are fixedly connected to the upper side of the base 1, the inner side surfaces of the two U-shaped seats 2 are rotatably connected to double-ended screws 6, the outer surfaces of the two double-ended screws 6 are threadedly connected to two symmetrically arranged threaded plates 7, the interiors of the four threaded plates 7 are connected to cross bars 8, and the outer surfaces of the four cross bars 8 are slidably connected to slide seats 9;

[0027] The upper sides of the four slides 9 are all slidably connected to a clamping seat 11, and a second spring 12 is connected between the clamping seat 11 and the slide 9. The interior of the four clamping seats 11 is clamped with the LTCC material body 13, and the interior of the four clamping seats 11 is connected with a sponge pad 14. The sponge pad 14 can be used to protect the bottom of the LTCC material to avoid clamping the LTCC material, which is easy to use. A first spring 10 is fixedly connected between the slide 9 and the threaded plate 7. Through the setting of the slide 9, the elastic force of the first spring 10 is used to allow the slide 9 to move on the cross bar 8, so that the clamping seat 11 can elastically clamp LTCC materials of different sizes, ensuring the flexibility of the test fixture. The inner sides of the two U-shaped seats 2 are connected to two parallel limit rods 16. Through the setting of the limit rods 16, the two limit rods 16 can limit the moving trajectory of the two threaded plates 7, so that the two threaded plates 7 can be smoothly moved and adjusted to clamp LTCC materials of different sizes, which is easy to use.

[0028] A U-shaped fixing plate 17 is fixedly installed in the middle of the upper side of the base 1, and a bolt 18 is threadedly connected to the lower side of the U-shaped fixing plate 17. The upper side of the bolt 18 passes through the U-shaped fixing plate 17 and extends to the upper side of the U-shaped fixing plate 17. A disc 19 is fixed on the upper side of the bolt 18, and a third spring 20 is connected to the upper side of the disc 19. A support seat 21 for supporting the LTCC material body 13 is installed on the upper side of the third spring 20. Through the setting of the bolt 18, rotating the bolt 18 drives the support seat 21 to move upward, so that the support seat 21 can be elastically supported under the LTCC material to prevent the test needle plate 24 from crushing the LTCC material.

[0029] A support plate 3 is installed on the upper side of the base 1, and the front side of the support plate 3 is fixedly connected to the test fixture body 4 by screws. A mounting seat 5 is fixed on the lower side of the test fixture body 4, and two elastic clips 23 are connected to the bottom end of the inside of the mounting seat 5. A card block 22 is clamped on the lower side of the mounting seat 5, and two positioning pins 25 for fixing the card block 22 are slidably clamped on the front side of the mounting seat 5. The rear side of the positioning pins 25 passes through the card block 22 and extends to the rear side of the mounting seat 5. A test pin board 24 is fixed on the lower side of the card block 22. The hole positions of the test pin boards 24 of the same size need to accurately correspond to the circuit patterns and component positions on the LTCC material to accurately test the functions of each part.

[0030] The front side of the support plate 3 is fixedly connected to a horizontal plate 26, and two sliding bars 27 are installed between the horizontal plate 26 and the base 1. The rear side of the test needle plate 24 is connected to two slide plates 28. The outer surfaces of the two slide bars 27 are slidably connected to the inner parts of the slide plates 28. Through the installation and use of the slide bars 27 and the slide plates 28, the two slide plates 28 can allow the test needle plate 24 to move up and down along the two slide bars 27, which is used to limit the moving direction of the guide test needle plate 24 and ensure the stability of the test needle plate 24 during detection.

[0031] The front side of the double-headed screw rod 6 passes through the U-shaped seat 2 and extends to the front side of the U-shaped seat 2. The front sides of the two double-headed screw rods 6 are installed with connecting hand wheels 15. The lower side of the clamping seat 11 passes through the clamping seat 11 and extends to the lower side of the clamping seat 11. The outer surfaces of the two limit rods 16 are slidably connected to the inside of the threaded plate 7.

[0032] Both ends of the clamping block 22 are provided with clamping slots 100 , which are adapted to the elastic clamping buckle 23 . The inner side surface of the elastic clamping buckle 23 is clamped with the two ends of the clamping block 22 through the clamping slots 100 .

[0033] The working principle of the LTCC material testing fixture provided by the utility model is as follows:

[0034] By simultaneously rotating the two connecting handwheels 15, the connecting handwheels 15 can drive the two double-ended screws 6 to rotate, so that the two threaded plates 7 on the two double-ended screws 6 can move toward each other. In this way, the four threaded plates 7 can adapt to LTCC material bodies 13 of different widths. Subsequently, the four slides 9 equipped with the first springs 10 are moved, so that the elastic slides 9 can be flexibly moved and adjusted so that the LTCC material body 13 can be clamped into the four clamping seats 11 equipped with the second springs 12. In this way, LTCC materials of different sizes can be elastically positioned, thereby flexibly fixing the LTCC material and improving the applicability of the test fixture. Then, the supporting seat 21 equipped with the third spring 20 and the four elastic clamping seats 11 are used to buffer the contact pressure of the test needle plate 24 on the LTCC material, so as to buffer and protect the LTCC material and ensure the safety of LTCC material testing.

[0035] By snapping the block 22 into the inside of the mounting seat 5, the block 22 can squeeze the two elastic clips 23 at the same time, and then the two elastic clips 23 can be embedded in the card slot 100 of the block 22 to snap into the test pin plate 24 at the positioning block 22, and then the two positioning pins 25 are snapped into the mounting seat 5 and the block 22 to re-position the test pin plate 24, so as to facilitate the loading and unloading of test pin plates 24 of different sizes to detect LTCC materials of different sizes. At the same time, the test fixture body 4 is pressed downward to drive the test pin plate 24 to move downward and contact the circuit on the LTCC material body 13 to detect the circuit connection status.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A LTCC material testing fixture, comprising a base (1), characterized in that: The upper side of the base (1) is fixedly connected to two symmetrically arranged U-shaped seats (2), the inner side surfaces of the two U-shaped seats (2) are rotatably connected to double-headed screw rods (6), the outer surfaces of the two double-headed screw rods (6) are threadedly connected to two symmetrically arranged threaded plates (7), the interiors of the four threaded plates (7) are connected to cross bars (8), and the outer surfaces of the four cross bars (8) are slidably connected to slide seats (9); The upper sides of the four slide seats (9) are all slidably connected to a clamp seat (11), a second spring (12) is connected between the clamp seat (11) and the slide seat (9), an LTCC material body (13) is clamped inside the four clamp seats (11), a sponge pad (14) is connected inside the four clamp seats (11), a first spring (10) is fixedly connected between the slide seat (9) and the threaded plate (7), and the inner side surfaces of the two U-shaped seats (2) are connected to two limit rods (16) arranged in parallel.

2. The LTCC material testing fixture according to claim 1, characterized in that: A U-shaped fixing plate (17) is fixedly installed in the middle of the upper side of the base (1), a bolt (18) is threadedly connected to the lower side of the U-shaped fixing plate (17), the upper side of the bolt (18) passes through the U-shaped fixing plate (17) and extends to the upper side of the U-shaped fixing plate (17), a disc (19) is fixedly provided on the upper side of the bolt (18), a third spring (20) is connected to the upper side of the disc (19), and a support seat (21) for supporting the LTCC material body (13) is installed on the upper side of the third spring (20).

3. The LTCC material testing fixture according to claim 1, characterized in that: A support plate (3) is installed on the upper side of the base (1), and the front side of the support plate (3) is fixedly connected to a test fixture body (4) by screws. A mounting seat (5) is fixedly provided on the lower side of the test fixture body (4), and two elastic clips (23) are connected to the bottom end of the mounting seat (5). A card block (22) is clamped on the lower side of the mounting seat (5), and two positioning pins (25) for fixing the card block (22) are slidably clamped on the front side of the mounting seat (5). The rear side of the positioning pins (25) passes through the card block (22) and extends to the rear side of the mounting seat (5), and a test needle plate (24) is fixed on the lower side of the card block (22).

4. The LTCC material testing fixture according to claim 3, characterized in that: The front side of the support plate (3) is fixedly connected with a transverse plate (26), two slide bars (27) are installed between the transverse plate (26) and the base (1), and the rear side of the test needle plate (24) is connected with two slide bars (28), and the outer surfaces of the two slide bars (27) are slidably connected with the inner sides of the slide bars (28).

5. The LTCC material testing fixture according to claim 1, characterized in that: The front side of the double-headed screw rod (6) passes through the U-shaped seat (2) and extends to the front side of the U-shaped seat (2), and the front sides of the two double-headed screw rods (6) are both installed with connecting hand wheels (15). The lower side of the clamping seat (11) passes through the clamping seat (11) and extends to the lower side of the clamping seat (11), and the outer surfaces of the two limiting rods (16) are slidably connected to the inside of the threaded plate (7).

6. The LTCC material testing fixture according to claim 3, characterized in that: Both ends of the clamping block (22) are provided with clamping slots (100), the clamping slots (100) are adapted to the elastic clamping buckle (23), and the inner side surface of the elastic clamping buckle (23) is clamped with the two ends of the clamping block (22) through the clamping slots (100).

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