Copper clad ceramic substrate double-sided sintering jig

Abstract

The utility model discloses a copper clad ceramic substrate double -sided sintering fixture, including jig bottom plate, the upper surface of jig bottom plate is equipped with the adjustable bearing seat of uniform distribution, still includes combination mechanism, combination mechanism: it includes connecting seat, slot, slot, support seat, sliding mouth, limit block and limit component, the upper surface of jig bottom plate is equipped with the connecting seat of uniform distribution, the upper surface of connecting seat all is equipped with the slot, the left and right two walls of slot all are equipped with the slot, the lower surface of jig bottom plate is equipped with the support seat corresponding with connecting seat one to one, the inside of support seat all is equipped with the sliding mouth, this copper clad ceramic substrate double -sided sintering fixture, through combination mechanism, two after loading sintering fixture stack combination together, then in the whole put into sintering furnace and carry out sintering work, avoided because sintering fixture dumping influence sintering work and led to the situation of the pass rate of finished product to decline to occur.

Description

Technical Field

[0001] This utility model relates to the field of copper-clad ceramic substrate processing technology, specifically a double-sided sintering fixture for copper-clad ceramic substrates. Background Technology

[0002] Copper-clad ceramic substrates combine the high insulation, high thermal conductivity and high temperature resistance of ceramics with the high electrical conductivity and machinability of copper, making them a key basic material in electronic devices. During the processing of copper-clad ceramic substrates, copper is usually clad on both sides of the ceramic substrate through a sintering process. A double-sided sintering fixture for copper-clad ceramic substrates is required during the sintering process.

[0003] In existing sintering fixtures, workers typically place ceramic substrates coated with copper paste or with copper foil on the sintering fixture, and then place the ceramic substrates on the sintering fixture into the sintering furnace for sintering.

[0004] Existing sintering fixtures have the following problems: In order to improve the production efficiency of copper-clad ceramic substrates, sintering fixtures usually need to be stacked together and placed in the sintering furnace for sintering. Simply stacking them together may cause the upper sintering fixture to tip over, thus affecting the sintering process and reducing the yield of finished products. Therefore, we propose a double-sided sintering fixture for copper-clad ceramic substrates. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a double-sided sintering fixture for copper-clad ceramic substrates. The fixture stacks and combines two sintering fixtures after loading through a combination mechanism, and then puts the whole fixture into the sintering furnace for sintering. This avoids the situation where the yield of finished products decreases due to the sintering fixture tipping over and affecting the sintering process. It can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-sided sintering fixture for copper-clad ceramic substrates, comprising a fixture base plate, wherein the upper surface of the fixture base plate is provided with evenly distributed adjustable support seats, and further comprising an assembly mechanism;

[0007] The assembly mechanism includes connecting seats, slots, slots, support seats, sliding openings, limiting blocks, and limiting components. The upper surface of the fixture base plate is provided with evenly distributed connecting seats, each with a slot on its upper surface and slots on both the left and right sides of the slot. The lower surface of the fixture base plate is provided with support seats corresponding to the connecting seats. Each support seat has a sliding opening inside, and each sliding opening has two adjustable limiting blocks on the left and right sides via a limiting component. The assembly mechanism stacks two sintering fixtures after loading together, and then places the whole assembly into the sintering furnace for sintering. This avoids the situation where the yield of the finished product decreases due to the sintering fixture tipping over and affecting the sintering process.

[0008] Furthermore, the limiting assembly includes a limiting rod, a push plate, and a spring. The inside of the slide is provided with a limiting rod, and the left and right sides of the outer surface of the limiting rod are slidably connected with push plates. The side of the push plate away from the center of the slide is fixedly connected to the side of the limiting block on the same side that is close to the center of the slide. The outer surface of the limiting rod is movably fitted with a spring, and the spring is located between two adjacent push plates to facilitate the sliding limitation of the limiting block.

[0009] Furthermore, the limiting component also includes a limiting groove and a limiting protrusion. The bottom wall of the sliding opening is provided with a limiting groove, and the lower end of the push plate is slidably connected to the inside of the limiting groove in the same sliding opening through the limiting protrusion, so as to facilitate the sliding and limiting of the limiting block.

[0010] Furthermore, the combined mechanism also includes a release component, which includes a sliding column, a contact plate, and a second pressure plate. The interior of each slot is slidably connected to a sliding column. A contact plate is provided on the side of the sliding column near the center of the slot, and a second pressure plate is provided on the side of the sliding column away from the center of the slot, so as to facilitate contacting the fixed relationship between the two sintering fixtures.

[0011] Furthermore, the upper surface of the fixture base plate is provided with sliding grooves on both the front and rear sides. A bidirectional lead screw is rotatably connected inside the sliding groove. A slider is threaded to both the left and right sides of the outer surface of the bidirectional lead screw. The upper surface of the slider is fixedly connected to the lower surface of the adjacent bearing seat. The upper surface of the bearing seat is stepped. A turntable is provided at the left end of the bidirectional lead screw to facilitate the support of ceramic substrates of different sizes.

[0012] Furthermore, the front and rear walls of the slide groove are provided with rib grooves, and the front and rear sides of the slider are provided with ribs. The ribs are slidably connected to the interior of the adjacent rib grooves, which facilitates the sliding and limiting of the slider.

[0013] Furthermore, the upper surface of the fixture base plate is provided with limiting frames on both the front and rear sides, and a first pressure plate is slidably connected between the two limiting frames. The upper surface of the first pressure plate is provided with a handle to facilitate the fixing of the ceramic substrate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This double-sided sintering fixture for copper-clad ceramic substrates has the following advantages:

[0015] After the ceramic substrate is fixed, the support base of another fixture base plate can be aligned with the slot on the connecting seat of the lower fixture base plate. The upper fixture base plate is moved downward, and the support base is inserted into the corresponding slot. As the support base moves downward, the inner wall of the slot presses the limiting block until the limiting block is aligned with the slot on the same side. The spring uses its rebound force to insert the limiting blocks on both sides into the slot, stacking the two fixture base plates together. Then, the above operation is repeated to fix the ceramic substrate before sintering. This avoids the situation where the yield of the finished product decreases due to the sintering fixture tilting and affecting the sintering process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of section B of this utility model;

[0020] Figure 5 This is an enlarged structural schematic diagram of point C of this utility model.

[0021] In the diagram: 1 Fixture base plate, 2 First pressure plate, 3 Combined mechanism, 31 Connecting seat, 32 Groove, 33 Slot, 34 Support seat, 35 Slide, 36 Limiting block, 37 Limiting component, 371 Limiting rod, 372 Push plate, 373 Spring, 374 Limiting groove, 375 Limiting protrusion, 38 Release component, 381 Sliding column, 382 Contact plate, 383 Second pressure plate, 4 Slide groove, 5 Bidirectional lead screw, 6 Slider, 7 Bearing seat, 8 Rib groove, 9 Rib, 10 Turntable, 11 Limiting frame, 12 Handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This embodiment provides a technical solution: a double-sided sintering fixture for copper-clad ceramic substrates, including a fixture base plate 1. The upper surface of the fixture base plate 1 is provided with evenly distributed adjustable support seats 7. It also includes a combination mechanism 3. The upper surface of the fixture base plate 1 has sliding grooves 4 on both the front and rear sides. The sliding grooves 4 are rotatably connected to bidirectional lead screws 5. The outer surfaces of the bidirectional lead screws 5 are threaded with sliders 6 on both the left and right sides. (The exposed part of the outer surface of the bidirectional lead screw 5 is fitted with a corrugated tube. The ends of the corrugated tubes are fixedly connected to the side of the sliders 6 and the side wall of the sliding grooves 4, respectively. The corrugated tubes are reserved with sufficient length. When the sliders 6 move towards each other, the middle corrugated tube contracts and the corrugated tubes on both sides extend, so that the corrugated tubes always wrap around and shield the bidirectional lead screw 5 during operation, avoiding dust from affecting the threaded transmission of the bidirectional lead screw 5 and the sliders 6.) The upper surface of the sliders 6 is fixedly connected to the lower surface of the adjacent support seats 7. The upper surface of the support seats 7 is stepped. The left end of the bidirectional lead screw 5 is provided with a turntable 10. The front and rear walls of the slide 4 are provided with rib grooves 8, and the front and rear sides of the slider 6 are provided with ribs 9. The ribs 9 are slidably connected to the interior of the adjacent rib grooves 8. The upper surface of the fixture base plate 1 is provided with limiting frames 11 on the front and rear sides. A first pressure plate 2 is slidably connected between the two limiting frames 11. The upper surface of the first pressure plate 2 is provided with a handle 12. The operator rotates the turntable 10 to drive the bidirectional screw 5 to rotate. Under the restriction of the rib grooves 8 and ribs 9, the rotation of the bidirectional screw 5 drives the sliders 6 connected by threads on both sides to move towards each other, thereby adjusting the distance between the two adjacent bearing seats 7 in the lateral direction until it meets the size of the ceramic substrate. Then, the ceramic substrate to be sintered is placed according to the size of the corresponding bearing seat 7. When placing, the first pressure plate 2 can be moved upward along the limiting frame 11 by the handle 12 to adjust the position of the first pressure plate 2. After moving, the first pressure plate 2 is released. Under the gravity of the first pressure plate 2, the first pressure plate 2 is reset downward and fixed to the copper foil surface.

[0024] Combination Mechanism 3: It includes a connecting seat 31, a slot 32, a slot 33, a support seat 34, a sliding opening 35, a limiting block 36, and a limiting component 37 (the length and width of the support seat 34 are both smaller than the length and width of the inner wall of the slot 32). The upper surface of the fixture base plate 1 is provided with evenly distributed connecting seats 31, and each connecting seat 31 has a slot 32 on its upper surface. The left and right walls of the slot 32 have slots 33. The lower surface of the fixture base plate 1 is provided with support seats 34 corresponding to the connecting seats 31. Each support seat 34 has a sliding opening 35 inside. Inside each sliding opening 35, there are two adjustable limiting blocks 36 on the left and right sides through a limiting component 37 (the lower end of the limiting block 36 on the side away from the center of the sliding opening 35 is inclined). The limiting component 37 includes a limiting block 36 on the left and right sides. The sliding opening 35 is equipped with a limiting rod 371, a push plate 372, and a spring 373. The limiting rod 371 is slidably connected to the left and right sides of its outer surface. The side of the push plate 372 furthest from the center of the sliding opening 35 is fixedly connected to the side of the limiting block 36 closest to the center of the sliding opening 35. A spring 373 is movably sleeved on the outer surface of the limiting rod 371, with each spring 373 located between two adjacent push plates 372. The limiting assembly 37 also includes a limiting groove 374 and a limiting protrusion 375. The bottom wall of the sliding opening 35 has a limiting groove 374. The lower ends of the push plates 372 are slidably connected to the inside of the limiting groove 374 within the same sliding opening 35 via the limiting protrusion 375. The assembly mechanism 3 also includes a release assembly 38 for releasing... Component 38 includes a sliding column 381, a contact plate 382, ​​and a second pressure plate 383. The sliding column 381 is slidably connected inside the slot 33. A contact plate 382 is provided on the side of the sliding column 381 closest to the center of the slot 33, and a second pressure plate 383 is provided on the side of the sliding column 381 furthest from the center of the slot 33. After fixing, another fixture base plate 1 can be stacked with it via a connecting seat 31 and a support seat 34. The support seat 34 of the upper fixture base plate 1 is aligned with the slot 32 on the connecting seat 31 of the lower fixture base plate 1. Then, the upper fixture base plate 1 is moved downwards until the support seat 34 is inserted into the corresponding slot 32. Because the lower end of the limiting block 36 on the side furthest from the center of the sliding opening 35 is inclined, the slot 32 is inserted into the lower part of the support seat 34 as it moves downwards. The inner wall of the opening 32 presses against the limiting block 36. Under the action of the limiting groove 374 and the limiting protrusion 375, the two limiting blocks 36 on the same support base 34 drive the push plate 372 to move towards each other along the limiting rod 381 while compressing the spring 373 until the limiting block 36 is aligned with the slot 33 on the same side. The spring 373, through its rebound force, causes the limiting blocks 36 on both sides to insert into the slot 33, stacking the two fixture base plates 1 together. Then, the above operation is repeated to fix the ceramic substrate and perform sintering. When it is necessary to separate the two fixture base plates 1, the two second pressure plates 383 on the same connecting base 31 are pressed. The second pressure plates 383 drive the two contact plates 382 to move towards each other through the sliding column 381, thereby pushing the limiting block 36 out of the slot 33.Once the fixing relationship between the two fixture base plates 1 is established, the two fixture base plates 1 can be separated.

[0025] The working principle of the double-sided sintering fixture for copper-clad ceramic substrates provided by this utility model is as follows: The operator rotates the turntable 10 to drive the bidirectional lead screw 5 to rotate. Under the restriction of the rib groove 8 and the rib 9, the rotation of the bidirectional lead screw 5 drives the sliders 6 connected by threads on both sides to move towards each other, thereby adjusting the distance between the two horizontally adjacent bearing seats 7 until it meets the size of the ceramic substrate. Then, the ceramic substrate to be sintered is placed on the corresponding bearing seat 7 according to the size. During placement, the position of the first pressure plate 2 can be adjusted by moving the first pressure plate 2 upward along the limit frame 11 through the handle 12. After moving, the first pressure plate 2 is released, and under the action of gravity, the first pressure plate 2 is reset downward and fixed to the surface of the copper foil. After fixing, another fixture base plate 1 can be stacked with it through the connecting seat 31 and the support seat 34. The support seat 34 of the upper fixture base plate 1 is aligned with the slot 32 on the connecting seat 31 of the lower fixture base plate 1. Then, the upper fixture base plate 1 is moved downward. As the support base 34 is inserted into the corresponding slot 32, the lower end of the limiting block 36 on the side furthest from the center of the sliding opening 35 is inclined. Therefore, as the support base 34 moves downward, the inner wall of the slot 32 presses against the limiting block 36. Under the action of the limiting groove 374 and the limiting protrusion 375, the two limiting blocks 36 on the same support base 34 drive the push plate 372 to move towards each other along the limiting rod 381, while compressing the spring 373, until the limiting blocks 36 are aligned with the slots 33 on the same side. The spring 373 then uses its rebound force to keep both sides aligned. The limiting block 36 is inserted into the slot 33, and the two fixture base plates 1 are stacked together. Then, the above operation is repeated to fix the ceramic substrate and then sintering is performed. When it is necessary to separate the two fixture base plates 1, the two second pressure plates 383 on the same connecting seat 31 are pressed. The second pressure plates 383 drive the two contact plates 382 to move towards each other through the sliding column 381, thereby pushing the limiting block 36 out of the slot 33, contacting the fixed relationship between the two fixture base plates 1, and then the two fixture base plates 1 can be separated.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-sided sintering fixture for copper-clad ceramic substrates, comprising a fixture base plate (1), wherein the upper surface of the fixture base plate (1) is provided with uniformly distributed adjustable support seats (7), characterized in that: It also includes combination mechanisms (3); The combined mechanism (3) includes a connecting seat (31), a slot (32), a slot (33), a support seat (34), a sliding opening (35), a limiting block (36), and a limiting component (37). The upper surface of the fixture base plate (1) is provided with evenly distributed connecting seats (31). The upper surface of each connecting seat (31) is provided with a slot (32). The left and right walls of each slot (32) are provided with slots (33). The lower surface of the fixture base plate (1) is provided with a support seat (34) corresponding to each connecting seat (31). The inside of each support seat (34) is provided with a sliding opening (35). Inside each sliding opening (35), there are two adjustable limiting blocks (36) on the left and right sides through a limiting component (37).

2. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 1, characterized in that: The limiting component (37) includes a limiting rod (371), a push plate (372) and a spring (373). The inside of the slide (35) is provided with a limiting rod (371). The left and right sides of the outer surface of the limiting rod (371) are slidably connected with push plates (372). The side of the push plate (372) away from the center of the slide (35) is fixedly connected to the side of the limiting block (36) on the same side that is close to the center of the slide (35). The outer surface of the limiting rod (371) is movably sleeved with a spring (373). The spring (373) is located between two adjacent push plates (372).

3. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 2, characterized in that: The limiting component (37) also includes a limiting groove (374) and a limiting protrusion (375). The bottom wall of the sliding opening (35) is provided with a limiting groove (374). The lower end of the push plate (372) is slidably connected to the inside of the limiting groove (374) in the same sliding opening (35) through the limiting protrusion (375).

4. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 1, characterized in that: The combined mechanism (3) further includes a release component (38), which includes a slide column (381), a contact plate (382), and a second pressure plate (383). The slide column (381) is slidably connected inside the slot (33). The slide column (381) is provided with a contact plate (382) on the side of the slide column (381) close to the center of the slot (33), and the slide column (381) is provided with a second pressure plate (383) on the side of the slide column (381) away from the center of the slot (33).

5. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 1, characterized in that: The upper surface of the fixture base plate (1) is provided with sliding grooves (4) on both the front and rear sides. The interior of each sliding groove (4) is rotatably connected with a two-way lead screw (5). The outer surface of the two-way lead screw (5) is threaded with sliders (6) on both the left and right sides. The upper surface of each slider (6) is fixedly connected to the lower surface of the adjacent bearing seat (7). The upper surface of each bearing seat (7) is stepped. The left end of each two-way lead screw (5) is provided with a turntable (10).

6. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 5, characterized in that: The front and rear walls of the slide groove (4) are provided with rib grooves (8), and the front and rear sides of the slider (6) are provided with ribs (9), and the ribs (9) are slidably connected to the interior of the adjacent rib grooves (8).

7. The double-sided sintering fixture for copper-clad ceramic substrates according to claim 1, characterized in that: The fixture base plate (1) has a limiting frame (11) on both the front and rear sides of its upper surface. A first pressure plate (2) is slidably connected between the two limiting frames (11). A handle (12) is provided on the upper surface of the first pressure plate (2).

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