Double-layer ceramic packaging shell heat sealing clamp

Abstract

The utility model relates to a double-layer ceramic packaging shell fusion sealing clamp which comprises a clamp upper pressing block, a middle pressing block and a clamp lower pressing block, and a clamp fastening screw penetrates through the clamp upper pressing block and the middle pressing block from top to bottom and then is in threaded connection with the clamp lower pressing block. Gaps between the upper clamp pressing block and the middle pressing block and between the lower clamp pressing block and the middle pressing block are used for fixing the double-layer ceramic packaging shell, and the upper clamp pressing block and the lower clamp pressing block are connected in an inserted mode. The clamp upper pressing block, the middle pressing block and the clamp lower pressing block are connected in an inserted mode and then connected and fixed through the clamp fastening screws, two sets of products can be clamped at a time, then the whole clamp is put into a fusion sealing furnace in the future, fusion sealing is conducted on the products, the two sets of products are subjected to fusion sealing at a time, the machining efficiency is improved, the production operation difficulty is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical clamps, in particular to a double-layer ceramic packaging shell sealing clamp. Background Art

[0002] In the field of ceramic packaging, the production operation of using gold-tin alloy solder (105n80Sn20) to form a closed space between the ceramic tube shell and the cover plate is the last production link in the chip packaging production process. This operation requires melting the gold-tin alloy solder in a high-temperature nitrogen environment to achieve the interconnection between the cover plate and the ceramic tube shell, and to ensure that the encapsulated ceramic tube shell can meet the inspection standards of GJB548B.

[0003] Since most of the CLCC series products use the melting sealing process, the production process needs to be manually clamped with high-temperature resistant clips to clamp the cover, gold-tin alloy solder and tube shell and put into a high-temperature nitrogen environment. This process is cumbersome and troublesome, and requires manual alignment of the cover, gold-tin alloy solder and tube shell to ensure the product appearance. When placing these production materials, manual operation can easily cause deviations in the fit between the cover and the tube shell, resulting in solder overflow and tilted cover sealing. Utility Model Content

[0004] The utility model provides a double-layer ceramic package shell sealing fixture, which ensures the matching and alignment degree of the produced products within a certain tolerance range by positioning the accuracy of the fixture, further reduces the difficulty of production operation and improves product quality.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-layer ceramic packaging shell sealing fixture, including a fixture upper pressure block, a middle pressure block, and a fixture lower pressure block. The fixture fastening screw passes through the fixture upper pressure block and the middle pressure block from top to bottom and is threadedly connected with the fixture lower pressure block. The gaps between the fixture upper pressure block and the middle pressure block, and between the fixture lower pressure block and the middle pressure block fix the double-layer ceramic packaging shell, and the fixture upper pressure block and the fixture lower pressure block are plugged into each other.

[0006] Preferably, a screw hole is vertically provided on the clamp upper pressing block for passing a screw through the clamp to tighten the screw, and the screw hole is a stepped hole.

[0007] Preferably, the upper pressing block of the clamp is a cubic structure, and the four corners of the upper pressing block and the middle pressing block of the clamp are arranged as planes in the vertical direction and are provided with sliding grooves.

[0008] Preferably, guide posts are provided at the upper ends of the four corners of the clamp lower pressing block, and the guide posts are plugged into the sliding grooves.

[0009] Preferably, the end faces of the upper pressing block and the middle pressing block of the clamp have the same shape.

[0010] Preferably, the end faces of the upper and lower clamp blocks in contact with the middle clamp block are provided with rectangular grooves, and the upper and lower end faces of the middle clamp block in contact with the upper and lower clamp blocks are provided with raised rectangular protrusions, and the rectangular grooves and the rectangular protrusions are plugged into each other.

[0011] Preferably, a product positioning groove is provided at the end surface of the middle pressing block in contact with the upper pressing block of the clamp and at the center of the end surface of the lower pressing block of the clamp in contact with the middle pressing block.

[0012] Preferably, the clamp upper pressing block is provided with through waist-shaped grooves parallel to the sliding grooves, and the waist-shaped grooves are in two groups, and the waist-shaped grooves correspond to the positions of the product positioning grooves.

[0013] Preferably, the threaded section of the clamp fastening screw is sleeved with a clamp fastening spring, the clamp fastening screw is an external hexagonal cylindrical head screw, one end of the clamp fastening spring abuts against the end surface of the external hexagonal cylindrical head of the clamp fastening screw, and the other end of the clamp fastening spring abuts against the step surface of the screw hole.

[0014] Beneficial effects of the utility model:

[0015] The fixture of the utility model clamps two groups of products and seals two groups of products at one time, which improves the processing efficiency, reduces the difficulty of production operation, and improves the product quality. The fixture is square in shape and is placed in a fixed position in the sealing furnace, so the sealing point is fixed each time, and the product is not easy to tilt, which is convenient for sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the clamp upper pressing block of a double-layer ceramic package shell sealing clamp of the utility model;

[0017] Figure 2 It is a side view of a clamp lower pressing block of a double-layer ceramic package shell sealing clamp of the utility model;

[0018] Figure 3 This is a structural diagram of a middle pressing block of a double-layer ceramic package shell sealing fixture of the utility model;

[0019] Figure 4 A three-dimensional diagram of a double-layer ceramic package shell sealing fixture of the utility model;

[0020] Figure 5 The utility model is a cross-sectional structural diagram of a double-layer ceramic packaging shell sealing fixture.

[0021] In the figure: the upper pressure block 1 of the clamp, the screw hole 101, the plane 102, the sliding groove 103, the waist groove 104, the rectangular protrusion 501, the clamp fastening screw 2, the clamp fastening spring 3, the middle pressure block 5, the rectangular groove 105, the lower pressure block 6 of the clamp, the guide column 601, and the product positioning groove 7. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. For the purpose of clarity, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the illustration, some conventional structures and components will be depicted in a simple schematic manner in the illustration.

[0023] like Figure 1-5 As shown, a double-layer ceramic package shell sealing fixture of the utility model includes a fixture upper pressing block 1, a fixture fastening screw 2, a middle pressing block 5, and a fixture lower pressing block 6. The fixture fastening screw 2 passes through the fixture upper pressing block 1 and the middle pressing block 5 from top to bottom and is threadedly connected with the fixture lower pressing block 6. The gaps between the fixture upper pressing block 1 and the middle pressing block 5, and between the fixture lower pressing block 6 and the middle pressing block 5 fix the double-layer ceramic package shell. The fixture upper pressing block 1 and the fixture lower pressing block 6 are plugged into each other. All materials of the fixture are SUS304. After the fixture upper pressing block 1, the middle pressing block 5, and the fixture lower pressing block 6 are assembled, a cubic structure is formed.

[0024] Furthermore, a screw hole 101 is vertically provided on the clamp upper pressing block 1 for passing the clamp fastening screw 2 , and the screw hole 101 is a stepped hole.

[0025] Furthermore, the upper clamp block 1 is a cubic structure, and the four corners of the upper clamp block 1 and the middle clamp block 5 are vertically arranged as planes 102 and are all provided with sliding grooves 103 .

[0026] Furthermore, guide posts 601 are provided at the upper ends of the four corners of the clamp pressing block 6 , and the guide posts 601 are plugged into the sliding grooves 103 .

[0027] Furthermore, the end surface shapes of the upper pressing block 1 and the middle pressing block 5 of the fixture are the same.

[0028] Furthermore, the end surfaces of the clamp upper pressure block 1, the clamp lower pressure block 6 and the middle pressure block 5 that are in contact are all provided with rectangular grooves 105, and the upper and lower end surfaces of the middle pressure block 5 that are in contact with the clamp upper pressure block 1 and the clamp lower pressure block 6 are all provided with raised rectangular protrusions 501, and the rectangular grooves 105 and the rectangular protrusions 501 are plugged into each other.

[0029] Furthermore, the end surface of the middle pressing block 5 in contact with the upper pressing block 1 of the clamp and the end surface center of the lower pressing block 6 of the clamp in contact with the middle pressing block 5 are both provided with product positioning grooves 7. The product positioning grooves 7 correspond to the shape of the product and limit the position of the product.

[0030] Furthermore, the clamp upper pressing block 1 is provided with through waist-shaped grooves 104 which are parallel to the sliding grooves 103. The waist-shaped grooves 104 are in two groups, and the waist-shaped grooves 104 correspond to the positions of the product positioning grooves 7. The waist-shaped grooves 104 are used for observing the product.

[0031] Furthermore, the threaded section of the clamp fastening screw 2 is sleeved with a clamp fastening spring 3, the clamp fastening screw 2 is an external hexagonal cylindrical head screw, one end of the clamp fastening spring 3 abuts against the external hexagonal cylindrical head end surface of the clamp fastening screw 2, and the other end of the clamp fastening spring 3 abuts against the step surface of the screw hole 101.

[0032] Embodiment: When in use, the product is stuck in the positioning groove 7, and then the upper pressure block 1, the middle pressure block 5, and the lower pressure block 6 of the clamp are plugged and connected, and then connected and fixed with the clamp fastening screws 2. Two groups of products can be clamped at one time, and then the whole will be put into the sealing furnace in the future to seal the products. Two groups of products can be sealed at one time, which improves the processing efficiency, reduces the difficulty of production operation, and improves product quality.

[0033] The above description is only a specific implementation of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the scope of the claims of the utility model.

Claims

1. A double-layer ceramic package shell sealing fixture, characterized in that: The invention comprises an upper clamp block (1), a clamp fastening screw (2), a middle clamp block (5), and a lower clamp block (6); the clamp fastening screw (2) passes through the upper clamp block (1) and the middle clamp block (5) from top to bottom and is then threadedly connected to the lower clamp block (6); the gaps between the upper clamp block (1) and the middle clamp block (5), and between the lower clamp block (6) and the middle clamp block (5) fix the double-layer ceramic packaging shell; the upper clamp block (1) and the lower clamp block (6) are plugged into each other.

2. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The clamp upper pressing block (1) is provided with a screw hole (101) in the vertical direction for passing a clamp fastening screw (2), and the screw hole (101) is a stepped hole.

3. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The clamp upper pressing block (1) is a cubic structure. The four corners of the clamp upper pressing block (1) and the middle pressing block (5) are arranged in vertical directions as planes (102) and are provided with sliding grooves (103).

4. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The upper ends of the four corners of the clamp lower pressing block (6) are provided with guide pillars (601), and the guide pillars (601) and the sliding grooves (103) are plugged into each other.

5. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The end surface shapes of the upper pressing block (1) and the middle pressing block (5) of the clamp are the same.

6. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The end surfaces of the clamp upper pressing block (1), the clamp lower pressing block (6) and the middle pressing block (5) in contact are both provided with rectangular grooves (105); the upper and lower end surfaces of the middle pressing block (5) in contact with the clamp upper pressing block (1) and the clamp lower pressing block (6) are both provided with raised rectangular protrusions (501); the rectangular grooves (105) and the rectangular protrusions (501) are plugged into each other.

7. A double-layer ceramic package shell sealing fixture according to claim 1, characterized in that: The end surface of the middle pressing block (5) in contact with the upper pressing block (1) of the clamp and the center of the end surface of the lower pressing block (6) of the clamp in contact with the middle pressing block (5) are both provided with a product positioning groove (7).

8. A double-layer ceramic package shell sealing fixture according to claim 7, characterized in that: The clamp upper pressing block (1) is provided with a through waist-shaped groove (104) parallel to the sliding groove (103), and the waist-shaped groove (104) is divided into two groups, and the waist-shaped groove (104) corresponds to the position of the product positioning groove (7).

9. A double-layer ceramic package shell sealing fixture according to claim 2, characterized in that: The clamp fastening screw (2) is a hexagonal cylindrical head screw, and the threaded section of the clamp fastening screw (2) is sleeved with a clamp fastening spring (3), one end of the clamp fastening spring (3) abuts against the end surface of the hexagonal cylindrical head of the clamp fastening screw (2), and the other end of the clamp fastening spring (3) abuts against the stepped surface of the screw hole (101).

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