Sintering tool of wiring board glass sintering assembly

Abstract

The sintering tool of the wiring board glass sintering assembly is suitable for initial fixation of a glass sintering product, the glass sintering product comprises a glass cake, a wide-body contact pin and a shell, the glass sintering product comprises a fixing cylinder, an upper graphite die, a fixing plate, a first graphite lower die and a second graphite lower die, first holes are formed in the glass cake at intervals, and the wide-body contact pin is inserted into the first holes. The first graphite lower die and the second graphite lower die are of hollow semi-cylindrical structures, and the sintering efficiency of glass products is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sintering glass assemblies of wiring boards, and in particular relates to a sintering tool for the sintering glass assemblies of wiring boards. Background Art

[0002] There is a high demand for glass sintered products in aviation components. These products offer high sealing, excellent electrical properties, and environmental resistance, making them suitable for a wide range of harsh operating scenarios. Currently, these glass sintered products lack effective pin solder cup fixation, making pin assembly and positioning difficult. After sintering, the glass cake can become uneven, leaking, and the pins can shift, resulting in low yield rates during the sintering process and severely hindering the research and development of these products. Summary of the Invention

[0003] In view of this, the present invention provides a sintering tool for a wiring board glass sintering assembly to solve the technical problem of low sintering efficiency of existing glass sintering products.

[0004] A sintering tool for a terminal board glass sintering assembly is suitable for the initial fixation of a glass sintering product. The glass sintering product includes a glass cake, a wide-body pin and a shell, and includes a fixing cylinder, an upper graphite mold, a fixing plate, a first graphite lower mold and a second graphite lower mold. The glass cake is provided with first holes at intervals. The first graphite lower mold and the second graphite lower mold are both hollow semi-cylindrical structures. The inner annular surface of the bottom end of the fixed cylinder is provided with a step boss, which is used to support the first graphite lower mold and the second graphite lower mold; The outer ring surface of the bottom end of the first graphite lower mold is provided with a first ring ear and the top end is provided with a first cover plate, and the first cover plate is provided with a notched first tooth-shaped meshing structure. The outer ring surface of the bottom end of the second graphite lower mold is provided with a second ring ear and the top end is provided with a second cover plate, and the second cover plate is provided with a raised second tooth-shaped meshing structure. When the first tooth-shaped meshing structure and the second tooth-shaped meshing structure are butted or spliced ​​together, a plurality of cylindrical holes can be formed, and the cylindrical holes can be used to fasten the cylindrical neck of the wide-body pin; A mounting hole is provided in the central area of ​​the housing, and the mounting hole is used for mounting the glass cake; The upper graphite mold is provided with a second hole at a position corresponding to the first hole, and the fixing plate is placed above the upper graphite mold and provided with a rectangular hole at a position corresponding to the second hole, the rectangular hole being used for the lug at one end of the wide-body pin to pass through, so as to fix one end of the wide-body pin; After the lug at one end of the wide-body pin is inserted into the rectangular hole, the shell is placed on the bottom surface of the first graphite lower mold and contacts the first graphite lower mold and the second graphite lower mold are matched and the cylindrical neck of the wide-body pin is tightened.

[0005] Beneficial effects of the present invention: After the lug at one end of the wide-body pin is inserted into the rectangular hole, the shell is placed on the bottom surface of the first graphite lower mold and contacts it, and the first and second graphite lower molds are matched and the cylindrical neck of the wide-body pin is tightened. This structure solves the problem of difficult assembly and positioning of the pin and the lower graphite mold. A fixed sleeve limiter is added to the upper graphite mold to ensure that the upper graphite mold does not deflect during the sintering process, so that the glass cake is evenly stressed, flat and leak-proof. Since the pin will rotate unknownly with the molten flow of the glass during the sintering process, causing the pin weld back to deflect, a fixed plate is designed to weld the cup angle. The degree of fixation is fixed; since the diameter of the weld backs at both ends of the sintering pins is large and the diameter of the pin positioning position is small, it is impossible to directly insert it into the lower graphite mold for positioning, so a combination of the first lower graphite mold and the second lower graphite mold is designed and manufactured and fixed by a fixing sleeve, so that the pin can be installed into the lower graphite for positioning; since the upper stone will undergo unknown displacement along with the molten flow of the glass during the sintering process, resulting in higher pressure on one side and insufficient pressure on the other side, resulting in glass cake deviation and leakage, the upper graphite mold is provided with a fixing cylinder for limiting the position, so that the glass cake is flat and leak-free during the sintering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0007] Figure 1 It is a structural schematic diagram of the first graphite lower mold and the second graphite lower mold after being assembled together; Figure 2 is a schematic diagram of a fixed cylinder of the present invention; Figure 3 Schematic diagram of the first graphite lower mold of the present invention; Figure 4 Schematic diagram of the second graphite lower mold of the present invention; Figure 5 It is a schematic diagram of the overall structure of the present invention, wherein, 1. Fixed cylinder; 2. Upper graphite mold; 3. Fixed plate; 4. First graphite lower mold; 5. Second graphite lower mold; 6. First ring ear; 7. Second ring ear; 8. First tooth-shaped meshing structure; 9. Second tooth-shaped meshing structure; 10. First cover plate; 11. Second cover plate; 12. First hole; 13. Second hole; 13. Mounting hole; 14. Cylindrical neck; 15. Glass cake; 16. Wide-body pin; 17. Housing; 18. Rectangular hole. DETAILED DESCRIPTION

[0008] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0009] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0010] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0011] like Figures 1 to 5 The sintering tooling of the terminal board glass sintering assembly shown is suitable for the initial fixation of the glass sintering product. The glass sintering product includes a glass cake 15, a wide-body pin 16 and a shell 17, including a fixing cylinder 1, an upper graphite mold 2, a fixing plate 3, a first graphite lower mold 4 and a second graphite lower mold 5. The glass cake 15 is provided with first holes 12 at intervals. The first graphite lower mold 4 and the second graphite lower mold 5 are both hollow semi-cylindrical structures. The inner annular surface of the bottom end of the fixed cylinder 1 is provided with a stepped boss, which is used to support the first graphite lower mold 4 and the second graphite lower mold 5. The limiting function of the fixed cylinder 1 ensures the uniformity of the pressure of the upper graphite mold 2 on the glass cake 15, so that the surface of the glass cake 15 is flat and leak-free after sintering, thereby improving the qualified rate of the sintered assembly; The outer ring surface of the bottom end of the first graphite lower mold 4 is provided with a first ring ear 6 and the top end is provided with a first cover plate 10. The first cover plate 10 is provided with a notched first tooth-shaped meshing structure 8. The outer ring surface of the bottom end of the second graphite lower mold 5 is provided with a second ring ear 7 and the top end is provided with a second cover plate 11. The second cover plate 11 is provided with a raised second tooth-shaped meshing structure 9. When the first tooth-shaped meshing structure 8 and the second tooth-shaped meshing structure 9 are connected or matched, multiple cylindrical holes can be formed. The cylindrical holes can fasten the cylindrical neck 14 of the wide-body pin 16. The central area of ​​the housing 17 is provided with a mounting hole 13 for mounting the glass cake 15; The upper graphite mold 2 is provided with a second hole 13 at a position corresponding to the first hole 12. The fixing plate 3 is positioned above the upper graphite mold 2 and is provided with a rectangular hole 18 at a position corresponding to the second hole 13. The rectangular hole 18 is used to pass the lug at one end of the wide-body pin 16 to fix one end of the wide-body pin 16. The fixing plate 3 effectively fixes the solder cup angle of the pin with a solder cup, solving the problem of pin deflection after sintering and improving the accuracy of the pin angle. At the same time, it solves the problem of pins with wide solder cup diameters and small diameters at the sealing position being unable to be fixed and sintered. This design realizes the feature that the glass sintered assembly of the terminal board can be sintered, ensures the manufacturability of this type of sintered assembly, makes the pin assembly process simple and convenient, and improves production efficiency. Generally, the wide-body pin 16 can be first installed in the upper graphite mold 2, with one end passing through the rectangular hole 18 and then tightened. Then, the first graphite lower mold 4 and the second graphite lower mold 5 are assembled. That is, after the lug at one end of the wide-body pin 16 is inserted into the rectangular hole 18, the shell 17 is placed on the bottom surface of the first graphite lower mold 4 and contacts it. The first graphite lower mold 4 and the second graphite lower mold 5 are assembled and the cylindrical neck 14 of the wide-body pin 16 is tightened.

[0012] Preferably, the centers of the first holes 12 are all on the same arc to ensure the concentricity of the wide-body pin 16. Preferably, the centers of the cylindrical holes formed by the second tooth-shaped meshing structure 9 and the first tooth-shaped meshing structure 8 are all on the same arc or arc surface to ensure the overall concentricity and ensure that the wide-body pin 16 does not deflect during the sintering process.

[0013] After the first graphite lower mold 4 and the second graphite lower mold 5 are joined together, the outer ring size formed by the first ring ear 6 and the second ring ear 7 is adapted to the inner ring size of the fixed cylinder 1, and in conjunction with the setting of the shell 17, the glass cake 15 can be preferentially prevented from tilting and deviating. During the sintering process, the glass cake 151 is limited in the circumferential direction by the shell 17 and the first graphite lower mold 4, the second graphite lower mold 5 and the upper graphite mold 2 in the vertical direction, so that no deviation occurs, that is, it is tightened during sintering to prevent the glass cake 15 from separating during the sintering process; on the other hand, the upper graphite mold 2 is limited to prevent it from deviating during the sintering process.

[0014] Furthermore, the fixing plate 3 is arranged in a semicircular structure and a weight-reducing hole is provided in the central area, and the mounting hole 13 is matched with the glass cake 15 in a gap manner.

[0015] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A sintering tool for a glass sintered assembly of a terminal board, suitable for the initial fixation of a glass sintered product, wherein the glass sintered product comprises a glass cake, a wide-body pin and a housing, and is characterized in that: It includes a fixed cylinder, an upper graphite mold, a fixed plate, a first graphite lower mold and a second graphite lower mold. The glass cake is provided with first holes at intervals. The first graphite lower mold and the second graphite lower mold are both hollow semi-cylindrical structures. The inner annular surface of the bottom end of the fixed cylinder is provided with a step boss, which is used to support the first graphite lower mold and the second graphite lower mold; The outer ring surface of the bottom end of the first graphite lower mold is provided with a first ring ear and the top end is provided with a first cover plate, and the first cover plate is provided with a notched first tooth-shaped meshing structure. The outer ring surface of the bottom end of the second graphite lower mold is provided with a second ring ear and the top end is provided with a second cover plate, and the second cover plate is provided with a raised second tooth-shaped meshing structure. When the first tooth-shaped meshing structure and the second tooth-shaped meshing structure are butted or spliced ​​together, a plurality of cylindrical holes can be formed, and the cylindrical holes can be used to fasten the cylindrical neck of the wide-body pin; A mounting hole is provided in the central area of ​​the housing, and the mounting hole is used for mounting the glass cake; The upper graphite mold is provided with a second hole at a position corresponding to the first hole, and the fixing plate is placed above the upper graphite mold and provided with a rectangular hole at a position corresponding to the second hole, the rectangular hole being used for the lug at one end of the wide-body pin to pass through, so as to fix one end of the wide-body pin; After the lug at one end of the wide-body pin is inserted into the rectangular hole, the shell is placed on the bottom surface of the first graphite lower mold and contacts the first graphite lower mold and the second graphite lower mold are matched and the cylindrical neck of the wide-body pin is tightened.

2. The sintering tool according to claim 1, characterized in that: The centers of the first holes are all on the same arc.

3. The sintering tool according to claim 1, characterized in that: After the first graphite lower die and the second graphite lower die are joined together, the size of the outer ring formed by the first ring ear and the second ring ear is adapted to the size of the inner ring of the fixed cylinder.

4. The sintering tool according to claim 1, characterized in that: The fixing plate is arranged in a semicircular structure and a weight-reducing hole is arranged in the central area.

5. The sintering tool according to claim 1, characterized in that: The mounting holes are matched with the gaps in the glass cakes.

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