CN216662898U

CN216662898U - Sintering mold for connector containing hollow lead

Info

Publication number: CN216662898U
Application number: CN202122873470.7U
Authority: CN
Inventors: 杨世亮
Original assignee: Shanghai Kefa Electronic Products Co ltd
Current assignee: Shanghai Kefa Electronic Products Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-03
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to a sintering mold for a connector containing a hollow lead, wherein the connector comprises a shell, the hollow lead inserted on the shell and glass arranged between the hollow lead and the shell, the top of the hollow lead is provided with a flared end, the mold comprises a lower mold, an upper mold arranged on the lower mold and a flat plate arranged at the bottom of the lower mold, the lower mold is provided with a connector placing cavity and a lower auxiliary lead through hole matched with an inner cavity of the hollow lead, and the upper mold is provided with a flared end avoiding cavity and an upper auxiliary lead hole corresponding to the lower auxiliary lead through hole. Compared with the prior art, the utility model utilizes the auxiliary leads positioned at the two ends to position the inner cavity of the hollow lead, and simultaneously sets the flaring end avoiding cavity for avoiding the flaring end, so that the concentricity is not related to the size of the flaring end, the concentricity and the product consistency of the product are further ensured, the product quality and the yield are improved, and the cost is saved.

Description

Sintering mold for connector containing hollow lead

Technical Field

The utility model belongs to the technical field of connector processing, and relates to a sintering mold for a connector containing a hollow lead.

Background

The connector is of various types, and generally includes a metal shell (outer conductor), a lead (inner conductor) inserted into the metal shell, and glass provided between the lead and the metal shell for sealing and insulating. In the conventional connector, when being processed, a lead, glass and a metal shell are respectively placed at respective corresponding positions on a mold and sintered at a high temperature. During sintering, the glass is melted and then solidified, and the lead and the metal shell are sealed.

One of the connector structures is shown in fig. 1 and 2, and the lead has a hollow structure and a flared top end. When the connector is processed, the length of the hollow lead 2 is generally utilized for positioning, but because the size of the flared end 4 at the top of the hollow lead 2 is not easy to control and has larger tolerance, only the bottom of the hollow lead 2 can be subjected to single-end positioning, and in addition, the length of the hollow lead 2 is shorter, the concentricity of a product finally sintered by the single-end positioning mode is poor and is about 0.25, and the requirement that the concentricity is less than 0.1 cannot be met far.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sintering mold for a connector containing a hollow lead, which can enable the concentricity of a product to reach below 0.05 and meet the requirement of high concentricity of the product.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a sintering mould for containing hollow lead connector, the connector include the shell, insert the hollow lead of establishing on the shell and set up the glass between hollow lead and shell, the top of hollow lead be equipped with the flaring end, the mould include the lower mould, set up last mould and the flat board of setting in the lower mould bottom on the lower mould, the lower mould on be equipped with the connector place the chamber and with the lower supplementary lead wire through-hole of the inner chamber looks adaptation of hollow lead, last mould on be equipped with the flaring end and dodge the chamber and with the corresponding supplementary lead wire hole of going up of supplementary lead wire through-hole down. The connector placement cavity is used for positioning the connector. The lower auxiliary lead through hole and the upper auxiliary lead hole are correspondingly arranged and used for placing an auxiliary lead. The flaring end avoiding cavity is used for avoiding the flaring end, so that the hollow lead is not in contact with the upper die, and the size of the flaring end does not influence the final concentricity of the product.

Further, the bottom end of the outer shell is flush with the bottom end of the hollow lead, and the flaring end is higher than the top end of the outer shell.

Further, the hollow lead is coaxially arranged with the shell.

Furthermore, the lower die is provided with a plurality of connector placing cavities and a plurality of lower auxiliary lead through holes, and the connector placing cavities are in one-to-one correspondence with the lower auxiliary lead through holes.

Further, the lower auxiliary lead through hole is located below the corresponding connector placing cavity, and the lower auxiliary lead through hole and the corresponding connector placing cavity are coaxially arranged.

Furthermore, the upper die is provided with a plurality of flaring end avoiding cavities and a plurality of upper auxiliary lead holes, and the plurality of upper auxiliary lead holes correspond to the flaring end avoiding cavities one to one.

Furthermore, the flaring end avoiding cavities correspond to the connector placing cavities one by one.

Through setting up the combination that the chamber was placed to a plurality of connectors, supplementary lead wire through-hole down, flaring end dodge the chamber and go up supplementary lead wire hole, can assemble and sintering a plurality of connectors simultaneously.

Further, this mould still includes the supplementary lead wire of detachably setting in lower mould and last mould, supplementary lead wire's bottom be located supplementary lead wire through-hole down, the top is located supplementary lead wire hole, the middle part is located the connector and places the chamber and flaring end dodges in the chamber. The auxiliary lead is positioned at two ends through the lower auxiliary lead through hole and the upper auxiliary lead hole, and the auxiliary lead is positioned in the inner cavity of the hollow lead, so that the hollow lead is accurately positioned, and the concentricity is guaranteed.

Furthermore, the outer diameter of the auxiliary lead is 0.02-0.04mm smaller than the inner diameter of the hollow lead, so that the auxiliary lead can be smoothly taken out after sintering, and the auxiliary lead and the hollow lead are made of the same material.

Further, the inner diameter of the flaring end avoiding cavity is larger than the outer diameter of the flaring end.

Preferably, the lower die, the upper die and the flat plate are all made of graphite.

Compared with the prior art, the auxiliary lead positioning hole matched with the inner cavity of the hollow lead is processed on the die and used for placing the auxiliary lead, the auxiliary lead penetrates through the inner hole of the hollow lead, the auxiliary lead positioned at two ends is used for positioning the inner cavity of the hollow lead, and the flaring end avoiding cavity is arranged for avoiding the flaring end, so that the concentricity is not related to the size of the flaring end, the concentricity and the product consistency are further ensured, the product quality and the finished product rate are improved, and the cost is saved.

Drawings

FIG. 1 is a front cross-sectional structural view of the connector;

FIG. 2 is a schematic top view of the connector;

FIG. 3 is a front cross-sectional structural view of a sintering die equipped with a connector;

FIG. 4 is a front sectional view of the lower mold;

FIG. 5 is a schematic top view of the lower mold;

FIG. 6 is a front sectional structural view of the upper die;

FIG. 7 is a bottom view of the upper mold;

the symbols in the figure illustrate:

the structure comprises a shell 1, a hollow lead 2, glass 3, a flared end 4, a lower die 5, an upper die 6, a flat plate 7, a connector placing cavity 8, an auxiliary lead through hole 9, a lower auxiliary lead through hole 10, a flared end avoiding cavity 11, an upper auxiliary lead hole 12 and an auxiliary lead.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example (b):

as shown in fig. 1 and 2, the connector includes a housing 1, a hollow lead 2 inserted into the housing 1, and a glass 3 disposed between the hollow lead 2 and the housing 1, and a flared end 4 is provided at a top of the hollow lead 2. The bottom end of the outer shell 1 is flush with the bottom end of the hollow lead 2, and the flared end 4 is higher than the top end of the outer shell 1. The hollow lead 2 is arranged coaxially with the housing 1.

Fig. 3 shows a sintering mold for a connector including a hollow lead wire, which includes a lower mold 5, an upper mold 6 disposed on the lower mold 5, and a flat plate 7 disposed at the bottom of the lower mold 5, as shown in fig. 4, the lower mold 5 is provided with a connector placing cavity 8 and a lower auxiliary lead wire through hole 9 adapted to an inner cavity of the hollow lead wire 2, as shown in fig. 6, the upper mold 6 is provided with a flared end avoiding cavity 10 and an upper auxiliary lead wire hole 11 corresponding to the lower auxiliary lead wire through hole 9.

As shown in fig. 5, the lower mold 5 is provided with a plurality of connector accommodating cavities 8 and a plurality of lower auxiliary lead through holes 9, and the plurality of connector accommodating cavities 8 correspond to the plurality of lower auxiliary lead through holes 9 one to one. The lower auxiliary lead through hole 9 is located below the corresponding connector placing cavity 8, and the lower auxiliary lead through hole 9 is coaxially provided with the corresponding connector placing cavity 8.

As shown in fig. 7, the upper die 6 is provided with a plurality of flared end avoiding cavities 10 and a plurality of upper auxiliary lead holes 11, and the plurality of upper auxiliary lead holes 11 correspond to the plurality of flared end avoiding cavities 10 one to one. The plurality of flared end avoiding cavities 10 correspond to the plurality of connector placing cavities 8 one to one.

The die further comprises an auxiliary lead 12 detachably arranged in the lower die 5 and the upper die 6, the bottom end of the auxiliary lead 12 is located in the lower auxiliary lead through hole 9, the top end of the auxiliary lead is located in the upper auxiliary lead hole 11, and the middle of the auxiliary lead is located in the connector placing cavity 8 and the flaring end avoiding cavity 10. The outer diameter of the auxiliary lead 12 is 0.02-0.04mm smaller than the inner diameter of the hollow lead 2. The inner diameter of the flared end relief cavity 10 is greater than the outer diameter of the flared end 4.

The application process is as follows:

1) firstly, inserting an auxiliary lead 12 into a lower auxiliary lead through hole 9 of a lower die 5, then loading glass 3 into a connector placing cavity 8, then loading a hollow lead 2 between the glass 3 and the auxiliary lead 12, and finally loading the hollow lead into a shell 1;

2) slightly covering the upper die 6 on the lower die 5, ensuring that positioning pins at four corners of the upper die 6 completely enter positioning holes at four corners of the lower die 5, and sintering after checking;

3) after sintering, the flat plate 7 is removed, all the auxiliary leads 12 are removed from the die (the upper die 6 cannot be directly removed to avoid deformation of the auxiliary leads 12 and influence on the quality of the product sintered next time), and then the upper die 6 is removed.

The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. The utility model provides a sintering mould for containing hollow lead connector, the connector include shell (1), insert hollow lead (2) of establishing on shell (1) and set up glass (3) between hollow lead (2) and shell (1), the top of hollow lead (2) be equipped with flaring end (4), a serial communication port, the mould include lower mould (5), set up last mould (6) on lower mould (5) and set up dull and stereotyped (7) in lower mould (5) bottom, lower mould (5) on be equipped with the connector place chamber (8) and with lower auxiliary lead through-hole (9) of the inner chamber looks adaptation of hollow lead (2), last mould (6) on be equipped with flaring end dodge chamber (10) and with lower auxiliary lead through-hole (9) corresponding last auxiliary lead hole (11).

2. Sintering tool for connectors containing hollow leads according to claim 1, characterised in that the bottom end of the envelope (1) is flush with the bottom end of the hollow lead (2) and that the flared end (4) is higher than the top end of the envelope (1).

3. Sintering tool for connectors containing hollow leads according to claim 1, characterised in that the hollow leads (2) are arranged coaxially to the housing (1).

4. The sintering mold for the connector with the hollow lead according to claim 1, wherein the lower mold (5) is provided with a plurality of connector placing cavities (8) and a plurality of lower auxiliary lead through holes (9), and the plurality of connector placing cavities (8) correspond to the plurality of lower auxiliary lead through holes (9) one by one.

5. The sintering die for a hollow-core lead-containing connector according to claim 4, wherein said lower auxiliary lead through hole (9) is located below the corresponding connector placing cavity (8), and said lower auxiliary lead through hole (9) is coaxially arranged with the corresponding connector placing cavity (8).

6. The sintering die for the hollow lead-containing connector is characterized in that a plurality of flaring-end avoiding cavities (10) and a plurality of upper auxiliary lead holes (11) are arranged on the upper die (6), and the plurality of upper auxiliary lead holes (11) correspond to the flaring-end avoiding cavities (10) in a one-to-one mode.

7. The sintering die for the connector with the hollow lead according to claim 6, wherein the plurality of flared end relief cavities (10) correspond to the plurality of connector placing cavities (8) one to one.

8. The sintering mold for the connector with the hollow lead according to claim 1, characterized in that the mold further comprises an auxiliary lead (12) detachably disposed in the lower mold (5) and the upper mold (6), wherein the auxiliary lead (12) has a bottom end located in the lower auxiliary lead through hole (9), a top end located in the upper auxiliary lead hole (11), and a middle portion located in the connector placing cavity (8) and the flared end avoiding cavity (10).

9. Sintering tool for connectors containing hollow leads according to claim 8, characterised in that the outer diameter of the auxiliary lead (12) is 0.02-0.04mm smaller than the inner diameter of the hollow lead (2).

10. The sintering tool for a hollow lead-containing connector according to claim 1, wherein the inner diameter of the flared end relief cavity (10) is larger than the outer diameter of the flared end (4).