CN210677262U - Accurate positioning die for metal tube shell of component - Google Patents

Abstract

The utility model discloses an accurate positioning mould for a component metal tube shell, which comprises an outer limiting mould, an inner limiting mould and an integral limiting mould; the metal tube shell is positioned at the top of the outer limiting mould, and the inner limiting mould is positioned in the metal tube shell and is contacted with the side wall of the metal tube shell close to the outer limiting mould; the outer limiting die and the inner limiting die are connected with the insulator through a lead wire penetrating through a packaging hole in the metal tube shell to form a sintered assembly body; be equipped with whole standing groove on the whole spacing mould, all placed the sintering assembly body in every whole standing groove, and the outer spacing mould of every sintering assembly body keeps away from the lateral wall of metal tube and contacts with the bottom of whole standing groove. The side wall of the outer limiting mould close to the metal tube shell is provided with a plurality of insulator outer positioning grooves, and one end of each insulator outer positioning groove far away from the metal tube shell is provided with an outer limiting mould brazing filler metal placing groove and a lead positioning groove. The problem that the extension length and the concentricity of the lead of the metal tube shell of the existing component are easy to be out of tolerance is solved.

Description

Accurate positioning die for metal tube shell of component

Technical Field

The utility model belongs to the metal package field relates to an accurate positioning die of components and parts metal tube.

Background

The metal tube shell of the component is an important means for protecting the components of the electronic equipment, can protect the interior of the component from being damaged under the conditions of impact, corrosive environment and the like, and simultaneously ensures that the component can normally transmit signals. At present, no matter in the aerospace field or the aviation field, the requirement for weight reduction is provided for aircraft equipment, and electronic equipment and components have the development trends of integration, miniaturization and light weight, so that higher requirements are provided for component metal tube shells. In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art: traditional components and parts metal tube need be through high temperature process in the preparation process, and lead wire and insulator can take place to remove at the in-process with metal casing complex, lead to components and parts metal tube's critical dimension and design size to have great error, in can packing into the tube in order to guarantee components and parts, often can have the design allowance to components and parts metal tube, this weight gain that has just led to components and parts metal tube. And a complete aircraft needs thousands of components, and the superposition of the weight gain of each component metal tube shell can have important influence on the quality of the aircraft, so that the preparation of the component metal tube shell with accurate size has very important significance on the weight reduction of the aircraft.

Disclosure of Invention

An object of the utility model is to provide an accurate positioning die of components and parts metal tube to solve the easy out-of-tolerance problem of the components and parts metal tube lead wire of present preparation length and concentricity, and the components and parts metal tube volume of traditional mould sintering sets up the design allowance for the assembly of guaranteeing components and parts, thereby subtracts heavy problem that causes adverse effect to components and parts metal tube.

The utility model adopts the technical proposal that the accurate positioning mould of the metal tube shell of the component comprises an outer limiting mould, an inner limiting mould and an integral limiting mould; the metal tube shell is positioned at the top of the outer limiting mould and is contacted with the outer limiting mould, and the inner limiting mould is positioned in the metal tube shell and is contacted with the side wall of the metal tube shell close to the outer limiting mould; the outer limiting die and the inner limiting die are connected with the insulator through a lead wire penetrating through a packaging hole in the metal tube shell to form a sintered assembly body; the whole limiting die is provided with at least one whole placing groove, a sintering assembly body is placed in each whole placing groove, and the side wall of each sintering assembly body, which is far away from the metal tube shell, is in contact with the bottom of the whole placing groove.

Further, the width of the entire placement groove = (1 + coefficient of expansion of metal material of metal case) × the thickness of the metal case.

Furthermore, the shapes of the outer limiting mould, the inner limiting mould and the integral limiting groove on the integral limiting mould are consistent with the shape of the metal pipe shell.

Further, be equipped with the outer constant head tank of a plurality of insulators on the lateral wall that outer spacing mould is close to metal tube, the one end that metal tube was kept away from to every outer constant head tank of insulator is equipped with outer spacing mould brazing filler metal standing groove and lead wire constant head tank, the outer constant head tank of insulator, outer spacing mould brazing filler metal standing groove and lead wire constant head tank connect gradually to the lateral wall that is close to metal tube along outer spacing mould runs through outer spacing mould perpendicularly to rather than relative lateral wall extending direction, and the outer constant head tank of insulator, the aperture of outer spacing mould brazing filler metal standing groove and lead wire constant head tank reduces in proper order.

Furthermore, a plurality of inner limiting mould brazing filler metal placing grooves are formed in the side wall, close to the outer limiting mould, of the inner limiting mould, one end, far away from the outer limiting mould, of each inner limiting mould brazing filler metal placing groove is provided with an insulator inner positioning groove communicated with the inner limiting mould brazing filler metal placing groove, and the aperture of each inner limiting mould brazing filler metal placing groove is larger than that of each insulator inner positioning groove.

Further, the quantity of the lead, the insulator, the brazing filler metal placing groove of the outer limiting mold, the outer positioning groove of the insulator, the lead positioning groove, the brazing filler metal placing groove of the inner limiting mold and the positioning groove in the insulator are equal, and the seven parts are connected in a one-to-one correspondence manner.

Furthermore, brazing filler metal for brazing the leads and the insulators is placed in the brazing filler metal placing grooves of the outer limiting die, each lead sequentially passes through the corresponding lead positioning groove, the brazing filler metal placing groove of the outer limiting die and the outer positioning groove of the insulator and then penetrates through the outer limiting die, and the outer side of each insulator penetrates through one end of the corresponding lead penetrating through the outer limiting die and is placed in the outer positioning groove of the insulator; the brazing filler metal used for brazing the insulators and the metal tube shell is placed in each inner limiting die brazing filler metal containing groove, the inner side of each insulator and the lead wires corresponding to the insulator enter the metal tube shell through the sealing holes of the metal tube shell, and the inner limiting die brazing filler metal containing grooves corresponding to the insulators are placed in the corresponding inner insulator positioning grooves to form a sintering assembly body.

Furthermore, in each sintering assembly body, any one insulator inner positioning groove vertically corresponds to the corresponding inner limiting mold brazing filler metal placing groove, the corresponding insulator outer positioning groove, the corresponding outer limiting mold brazing filler metal placing groove and the corresponding lead positioning groove.

Further, be equipped with the drawing of patterns that a plurality of are parallel to each other and vertical setting on the lateral wall that interior spacing mould is close to outer spacing mould and lead to the groove, every drawing of patterns leads to the groove and extends to its opposite side from one side that interior spacing mould is close to the lateral wall of outer spacing mould, runs through the lateral wall that interior spacing mould is close to outer spacing mould, and two edges and corners department that interior spacing mould is close to outer spacing mould is equipped with the drawing of patterns chamfer.

Furthermore, the solder placing groove of the inner limiting mold and the positioning groove in the insulator are both positioned in the depth range of the demolding through groove in the inner limiting mold.

The beneficial effects of the utility model are that, utilize the gravity of interior spacing mould ingeniously, stretch out length and the interior length of stretching out of lead wire to the interior of insulator and carry out accurate control, utilize outer spacing mould control lead wire and insulator and metal casing's relative position, utilize the relative position of the outer length of stretching out of whole spacing mould control lead wire and metal casing and inside and outside spacing mould, make components and parts metal tube can one shot forming at the in-process of sintering, guarantee components and parts metal tube lead wire's concentricity, the easy out-of-tolerance problem of the components and parts metal tube lead wire that has effectively solved present preparation stretch out length and concentricity. And the position limit of the insulator and the shell is not strictly limited by using a fixed die, so that the cracking of the metal tube shell or the cracking of the insulator caused by the forced limit in the sintering process is avoided, the design size of the metal tube shell of the component is more accurately controlled, the size of the sintered finished product is well controlled, the placement of the component can be ensured, the design allowance is not needed, the weight reduction of the metal tube shell of the component is facilitated, and the problem that the weight reduction of the metal tube shell of the component sintered by the traditional die is adversely affected by the design allowance for ensuring the assembly of the component is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an outer limit mold structure according to an embodiment of the present invention.

Fig. 2 is a sectional view of the outer limit mold according to the embodiment of the present invention.

Fig. 3 is a schematic plan view of an inner limiting mold structure according to an embodiment of the present invention.

Fig. 4 is a schematic front view of an inner limiting mold structure according to an embodiment of the present invention.

Fig. 5 is a B-B sectional view of the inner limiting mold according to the embodiment of the present invention.

Fig. 6 is a schematic structural view of an integral limiting mold according to an embodiment of the present invention.

Fig. 7 is the overall structure schematic diagram of the outer limiting mold according to the embodiment of the present invention.

Fig. 8 is an overall schematic view of an inner limiting module according to an embodiment of the present invention.

Fig. 9 is an assembly diagram of the outer limit module and the inner limit module according to the embodiment of the present invention.

Fig. 10 is an assembly diagram of the precision positioning die for the metal tube shell of the component according to the embodiment of the present invention.

In the drawing, 1, an outer limiting die brazing filler metal placing groove, 2, an insulator outer positioning groove, 3, a lead positioning groove, 4, an inner limiting die brazing filler metal placing groove, 5, an insulator inner positioning groove, 6, a demolding through groove, 7, a demolding chamfer and 8, an integral placing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment provides an accurate positioning die of components and parts metal tube, including outer spacing mould, interior spacing mould and whole spacing mould, the metal tube is located outer spacing mould top and contacts with outer spacing mould, and interior spacing mould is located the metal tube and contacts near the lateral wall of outer spacing mould with the metal tube, and outer spacing mould and interior spacing mould form the sintering assembly body through the lead wire and the insulator connection that run through the metal tube, as shown in fig. 9. The integral limiting mold is of a cuboid structure, at least one integral placing groove 8 is formed in the integral limiting mold, the width of the integral placing groove 8 is = (1 + expansion coefficient of metal material of the metal tube shell) × the thickness of the metal tube shell, as shown in fig. 6, a sintering assembly body is placed in each integral placing groove 8, and the side wall, far away from the metal tube shell, of the outer limiting mold of each sintering assembly body is in contact with the bottom of the integral placing groove 8, as shown in fig. 10.

As shown in fig. 1 and 7, a cross-sectional view of the outer limiting mold from a to a is shown in fig. 2, a plurality of insulator outer positioning grooves 2 are arranged on the side wall of the outer limiting mold close to the metal tube shell, an outer limiting mold solder placement groove 1 and a lead positioning groove 3 are arranged at one end of each insulator outer positioning groove 2 far away from the metal tube shell, the insulator outer positioning grooves 2, the outer limiting mold solder placement grooves 1 and the lead positioning grooves 3 are sequentially connected, and vertically penetrate through the outer limiting mold along the side wall of the outer limiting mold close to the metal tube shell in the extending direction of the side wall opposite to the side wall, and the diameters of the insulator outer positioning grooves 2, the outer limiting mold solder placement grooves 1 and the lead.

The lateral wall that interior spacing mould is close to outer spacing mould is equipped with the logical groove 6 of a plurality of drawing of patterns that are parallel to each other and vertical setting on the lateral wall, and every drawing of patterns leads to the groove 6 and extends to its opposite side from the lateral wall side that interior spacing mould is close to outer spacing mould, runs through the lateral wall that interior spacing mould is close to outer spacing mould, and two edges and corners department that interior spacing mould is close to outer spacing mould are equipped with drawing of patterns chamfer 7 to spacing chamfer and drawing of patterns in the installation, as shown in 3~4 and figure 8. As shown in fig. 5, a B-B cross-sectional view of the inner limiting mold is shown, a plurality of inner limiting mold solder placing grooves 4 are arranged on the side wall of the inner limiting mold close to the outer limiting mold, one end of each inner limiting mold solder placing groove 4 far away from the outer limiting mold, namely the end of each inner limiting mold solder placing groove 4 located inside the inner limiting mold, is provided with an insulator inner positioning groove 5 communicated with the inner limiting mold, the aperture of each inner limiting mold solder placing groove 4 is larger than that of each insulator inner positioning groove 5, and the inner limiting mold solder placing grooves 4 and the insulator inner positioning grooves 5 are both located in the depth range of the demolding through groove 6 in the inner limiting mold.

Outer spacing mould, the shape of interior spacing mould and whole standing groove 8 is corresponding with metal tube's shape, the lead wire, the insulator, outer spacing mould brazing filler metal standing groove 1, outer constant head tank 2 of insulator, lead wire constant head tank 3, interior spacing mould brazing filler metal standing groove 4, the quantity homogeneous phase of constant head tank 5 equals in the insulator, in every sintering assembly body, constant head tank 5 and the interior spacing mould brazing filler metal standing groove 4 rather than corresponding in arbitrary one insulator, outer constant head tank 2 of insulator, outer spacing mould brazing filler metal standing groove 1 and the vertical correspondence from top to bottom of lead wire constant head tank 3, in order to guarantee metal tube lead wire's concentricity.

All place the brazing filler metal that is used for brazing lead wire and insulator in outer spacing mould brazing filler metal standing groove 1, every lead wire is in proper order through the lead wire constant head tank 3, outer spacing mould brazing filler metal standing groove 1 and the outer constant head tank 2 of insulator that correspond rather than running through outer spacing mould, and the one end that runs through outer spacing mould rather than the lead wire that corresponds is passed in the outside of every insulator and is placed in outer constant head tank 2 of insulator. The brazing filler metal used for brazing the insulators and the metal tube shell is placed in each inner limiting die brazing filler metal placing groove 4, the inner side of each insulator and the lead wires corresponding to the insulator enter the metal tube shell through the sealing holes of the metal tube shell, and the inner limiting die brazing filler metal placing grooves 4 corresponding to the insulators are placed in the corresponding inner insulator positioning grooves 5 to form a sintering assembly body. And placing the assembled sintering assembly body in the integral placing groove 8 of the integral limiting die, and completing the brazing of all leads and the insulators corresponding to the leads under the action of the corresponding brazing filler metal through sintering, and the brazing of the metal tube shell and all the insulators. The outer side of the insulator refers to the end of the insulator positioned outside the metal tube shell, and the inner side of the insulator refers to the end of the insulator positioned inside the metal tube shell.

The insulator is in a boss shape, the insulator is in a cylindrical shape, the diameters of the insulator outer positioning groove 2 and the insulator inner positioning groove 5 are designed according to the inner diameter and the outer diameter of the insulator, if the insulator is in a cylindrical shape, the diameters of the insulator outer positioning groove 2 and the insulator inner positioning groove 5 are equal, and if the insulator is in a boss shape, the diameters of the insulator outer positioning groove 2 and the insulator inner positioning groove 5 are determined according to the outer diameter of the boss.

The logical groove 6 of drawing of patterns reduces the spacing to the lead wire on the one hand, lets the degree of freedom of lead wire some greatly, and on the other hand makes interior spacing mould not very tight to the lead wire clamp, and it is easier when the drawing of patterns is toward drawing outward, and drawing of patterns chamfer 7 generally is for the better and metal casing of mould matches, and if interior spacing mould also makes the unable installation of right angle.

The gravity of the inner limiting mould is skillfully utilized to accurately control the inner extending length of the insulator and the inner extending length of the lead (the outer end of the lead is attached to the bottom of the integral placing groove 8, the inner positioning groove 5 of the insulator is pressed on the inner end of the lead by utilizing the gravity), the outer limiting mould mainly controls the lead and the relative position of the insulator and the metal shell, the integral limiting mould can control the outer extending length of the lead and the relative position of the metal shell and the inner and outer limiting moulds, so that the metal tube shell can be molded at one time in the sintering process, a fixed mould is not forced to strictly limit the positions of the insulator and the shell, the shell fracture or the insulator fracture caused by forced limiting in the sintering process is avoided, the design size of the metal tube shell is more accurately controlled, the size of a sintered finished product is well controlled, the placement of components can be ensured, and design allowance is not needed, is beneficial to the weight reduction of the metal tube shell.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. The accurate positioning die for the metal tube shell of the component is characterized by comprising an outer limiting die, an inner limiting die and an integral limiting die; the metal tube shell is positioned at the top of the outer limiting mould and is contacted with the outer limiting mould, and the inner limiting mould is positioned in the metal tube shell and is contacted with the side wall of the metal tube shell close to the outer limiting mould; the outer limiting die and the inner limiting die are connected with the insulator through a lead wire penetrating through a packaging hole in the metal tube shell to form a sintered assembly body; at least one integral placing groove (8) is formed in the integral limiting mold, the sintering assembly body is placed in each integral placing groove (8), and the side wall, far away from the metal tube shell, of the outer limiting mold of each sintering assembly body is in contact with the bottom of the integral placing groove (8).

2. The mold for accurately positioning a component metal package according to claim 1, wherein the width of the entire placement groove (8) = (1 + coefficient of expansion of metal material of metal package) × the thickness of metal package.

3. The mold for accurately positioning the metal tube shell of the component as claimed in claim 1, wherein the shape of the integral placing groove (8) on the outer limiting mold, the inner limiting mold and the integral limiting mold is consistent with the shape of the metal tube shell.

4. The precision positioning mold for the metal tube shells of components and parts according to claim 1, wherein a plurality of insulator outer positioning grooves (2) are formed in the side wall of the outer limiting mold close to the metal tube shell, an outer limiting mold solder placing groove (1) and a lead positioning groove (3) are formed in one end, away from the metal tube shell, of each insulator outer positioning groove (2), the outer limiting mold solder placing groove (1) and the lead positioning groove (3) are sequentially connected, the outer limiting mold solder placing groove (1) and the lead positioning groove (3) vertically penetrate through the outer limiting mold along the side wall of the outer limiting mold close to the metal tube shell towards the extending direction of the side wall opposite to the side wall, and the diameters of the insulator outer positioning groove (2), the outer limiting mold solder placing groove (1) and the lead positioning groove.

5. The precision positioning mold for metal tube shells of components and parts as claimed in claim 4, wherein a plurality of inner limiting mold solder placing grooves (4) are formed in the side wall of the inner limiting mold close to the outer limiting mold, an insulator inner positioning groove (5) communicated with each inner limiting mold solder placing groove is formed in one end of each inner limiting mold solder placing groove (4) far away from the outer limiting mold, and the aperture of each inner limiting mold solder placing groove (4) is larger than that of each insulator inner positioning groove (5).

6. The precision positioning mold for metal tube shells of components and parts according to claim 5, wherein the lead wires, the insulators, the solder placement grooves (1) of the outer limiting mold, the outer positioning grooves (2) of the insulators, the lead wire positioning grooves (3), the solder placement grooves (4) of the inner limiting mold and the solder placement grooves (5) of the inner limiting mold are equal in number and are connected in a one-to-one correspondence manner.

7. The precision positioning die for metal tube shells of components and parts according to claim 6, wherein the solder for soldering the leads and the insulators is placed in the solder placement groove (1) of the outer limit die, each lead sequentially passes through the lead positioning groove (3), the solder placement groove (1) of the outer limit die and the outer positioning groove (2) of the insulator corresponding to the lead and then penetrates through the outer limit die, and the outer side of each insulator penetrates through one end of the outer limit die and is placed in the outer positioning groove (2) of the insulator corresponding to the lead; the brazing filler metal used for brazing the insulators and the metal tube shell is placed in each inner limiting mold brazing filler metal placing groove (4), the inner side of each insulator and the lead wires corresponding to the insulator enter the metal tube shell through the sealing holes of the metal tube shell, and the inner side of each insulator and the lead wires corresponding to the insulator are placed in the corresponding insulator inner positioning grooves (5) after the inner limiting mold brazing filler metal placing grooves (4) corresponding to the insulator, so that a sintering assembly body is formed.

8. The precision positioning mold for metal tube shells of components and parts according to claim 6 or 7, wherein in each sintered assembly body, any one of the insulator inner positioning groove (5) and the corresponding inner limiting mold solder placement groove (4), insulator outer positioning groove (2), outer limiting mold solder placement groove (1) and lead positioning groove (3) vertically correspond to each other.

9. The mold for accurately positioning the metal tube shell of the component as recited in claim 5, wherein the sidewall of the inner limiting mold near the outer limiting mold is provided with a plurality of parallel and vertically arranged demolding through grooves (6), each demolding through groove (6) extends from one side of the sidewall of the inner limiting mold near the outer limiting mold to the other side thereof, penetrates through the sidewall of the inner limiting mold near the outer limiting mold, and demolding chamfers (7) are arranged at two corners of the inner limiting mold near the outer limiting mold.

10. The precision positioning mold for metal tube shells of components and parts as claimed in claim 9, wherein the solder placement groove (4) and the positioning groove (5) in the insulator of the inner limiting mold are both located in the depth range of the demolding through groove (6) in the inner limiting mold.

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