CN112846498B

CN112846498B - Seal welding tool

Info

Publication number: CN112846498B
Application number: CN202011464569.5A
Authority: CN
Inventors: 陈宇; 刘宇杰; 吕志军; 李占国
Original assignee: Beijing Institute of Radio Measurement
Current assignee: Beijing Institute of Radio Measurement
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-08-30
Anticipated expiration: 2040-12-14
Also published as: CN112846498A

Abstract

The embodiment of the invention provides a seal welding tool, which comprises a reference part in a U-shaped structure; the two fixing pieces are respectively combined and fixed on the upper side surface and the lower side surface of the reference piece and are in a U-shaped structure; the fixing piece comprises a main body corresponding to the reference piece and a limiting edge extending inwards from the inner side edge of the main body of the fixing piece; the tool further comprises a reference block formed on the reference piece; the datum block is positioned in an area defined between the inner side wall of the datum part and the limiting edges on the two fixing parts; and a spacing distance is arranged between the edge surfaces of the upper and lower side surfaces of the reference block and the corresponding limiting edge surface. The problem of TR subassembly because of welding deformation and overall dimension change, lead to assembly difficulty and radiating effect poor is solved.

Description

Seal welding tool

Technical Field

The invention relates to the technical field of tool design. And more particularly, to a seal welding tool.

Background

The C-shaped opening TR assembly is a small size, highly integrated receiver-transmitter module having a C-shaped opening with the top and bottom surfaces being heat dissipating surfaces for conducting heat in conjunction with the cold plate, so that to ensure good heat dissipation efficiency, the C-shaped opening heat dissipating surfaces are required to maintain a good flatness and to be closely engaged with the cold plate. And the radio frequency connector and the positioning pin of the TR component are positioned on one side of the C-shaped opening, and the size change of the C-shaped opening can cause the axis of the positioning pin to deviate from the axis of the positioning hole, so that the assembly is difficult or even impossible. However, can produce high temperature at TR subassembly packaging process, the inhomogeneous C type opening that leads to TR subassembly structural strength weakest of uneven temperature produces thermal stress, makes the open-ended size grow of C type after the sealing and welding is accomplished, and the locating pin central line deviates from the locating hole, and the radiating surface forms the arc in addition and swells even, causes TR subassembly assembly difficulty and radiating effect poor.

Disclosure of Invention

Aiming at the problems, the invention provides a sealing and welding tool which solves the problems of difficult assembly and poor heat dissipation effect of a TR component due to welding deformation and change of the overall dimension.

In order to realize the purpose, the invention adopts the following technical scheme:

the invention provides a seal welding tool, which comprises: the utility model provides a seal welding frock which characterized in that includes:

a reference member in a U-shaped structure; and

two fixing pieces which are respectively combined and fixed on the upper and lower side surfaces of the reference piece and are in a U-shaped structure;

the fixing piece comprises a main body corresponding to the reference piece and a limiting edge extending inwards from the inner side edge of the main body of the fixing piece;

the tool further comprises a reference block formed on the reference piece; the datum block is positioned in an area defined between the inner side wall of the datum part and the limiting edges on the two fixing parts;

and a spacing distance is arranged between the edge surfaces of the upper and lower side surfaces of the reference block and the corresponding limiting edge surface.

In addition, it is preferable that a side wall surface of the reference block is fixedly combined with an inner wall surface of the corresponding reference member, and upper and lower side surfaces of the reference block are flat surfaces.

Furthermore, it is preferable that the thickness of the reference block is smaller than the thickness of the reference member.

In addition, preferably, the thickness of the reference block is equal to the thickness of the reference member, and a height difference is formed between the surface of the limiting edge corresponding to the reference block and the surface of the main body corresponding to the reference member, and the height difference constitutes the separation distance.

Preferably, the reference member includes a guide portion formed by a tip end of the two opposite side portions of the reference member.

Further, it is preferable that the two fixing members are fixed to upper and lower side surfaces of the reference member by bolt coupling, respectively.

In addition, preferably, the reference member includes screw holes corresponding to the bolts, and the screw holes are uniformly arranged on the upper and lower side surfaces of the reference member.

In addition, preferably, an operating distance for welding operation is reserved between the inner side edge of the limiting edge and the welding area of the upper side surface and the lower side surface of the product.

The seal welding tool has the beneficial effects that:

according to the invention, the fixing piece and the reference block are arranged on the reference piece, the TR component is matched with the sealing and welding tool, and the plane warping of the TR component caused by laser sealing and welding can be effectively reduced by utilizing the limiting action of the limiting edge and the reference block, the deformation of the TR component during laser sealing and welding is reduced, the high-precision form and position tolerance is kept, the size of the C-shaped opening and the thickness of the TR component are ensured to accord with the assembly standard, meanwhile, the heat dissipation surface of the C-shaped opening is smooth, and the problems of difficult assembly and poor heat dissipation effect caused by welding deformation and appearance size change of the TR component are well solved.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is an assembly view of the present invention.

FIG. 2 is a schematic view of the present invention with the TR assembly not installed.

FIG. 3 is a schematic view of the present invention installed into a TR assembly.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The problem of TR subassembly because of welding deformation and overall dimension change, lead to the assembly difficulty and the radiating effect is poor is solved. The invention provides a sealing tool, which is shown in a combined mode in figures 1 to 3, and specifically comprises:

a reference member 3 in a U-shaped configuration; and

two fixing pieces 4 which are respectively combined and fixed on the upper and lower side surfaces of the reference piece 3 and are in a U-shaped structure;

the fixing part 4 comprises a main body corresponding to the reference part 3 and a limiting edge 5 extending inwards from the inner side edge of the main body of the fixing part 4;

the tool further comprises a reference block 6 formed on the reference piece 3; the reference block 6 is positioned in the area defined between the inner side wall of the reference part 3 and the upper limiting edges 5 of the two fixing parts 4;

and a spacing distance is included between the edge surfaces of the upper and lower side surfaces of the reference block 6 and the corresponding surface of the limiting edge 5.

Along with the improvement of TR subassembly frequency channel, the subassembly unit interval is littleer and more for the thickness size of C type opening type TR subassembly is also littleer and more, and this makes structural strength very easily produce deformation after laser seal welding just very weak C type mouth originally, and this has produced very big difficulty to the assembly, and interchangeability is poor between the module, has seriously influenced the production progress, and TR subassembly deformation makes the subassembly have hidden danger such as various stress, heat dissipation. The sealing tool 1 provided by the invention can effectively reduce plane warpage caused by laser sealing, reduce the deformation of the C-shaped opening TR component 2 during laser sealing, keep high-precision form and position tolerance, ensure the coaxiality of the positioning pin and the guide hole of the C-shaped opening TR component 2, ensure that the size of the C-shaped opening and the thickness of the TR component 2 meet the assembly standard, facilitate the assembly of the TR component 2, prevent the TR component 2 from being incapable of being assembled, simultaneously ensure that the radiating surface of the C-shaped opening is smooth, effectively ensure the radiating effect of the radiating surface, and well solve the problems of difficult assembly and poor radiating effect of the TR component 2 caused by welding deformation and change of the appearance size.

In one embodiment, the side wall surface of the reference block 6 is fixedly combined with the inner wall surface of the corresponding reference member 3, and the upper and lower side surfaces of the reference block 6 are flat surfaces. Reference block 6 is located the U type structure of benchmark piece 3, and benchmark block 6 is surrounded by benchmark piece 3 promptly, and be in between the spacing limit 5 of two mountings 4 by the inside border of the inside of mounting 4 main part inwards extension and combine to fix on benchmark piece 3, benchmark block 6 is used for restricting C type open-ended minimum size, and guarantee C type opening central symmetry from top to bottom, the upper and lower wall of benchmark block 6 need mutually support with the C type opening of TR subassembly 2, its upper and lower wall can be better realization and the cooperation of the C type opening of TR subassembly 2 for the smooth surface, specifically, the thickness dimension of benchmark block 6 is less than 0.05mm than the opening size of the C type opening of TR subassembly 2 on the vertical direction. Its advantage lies in, reference block 6 thickness dimension slightly is less than C type opening 0.05mm, can be convenient for pack into TR subassembly 2's C type opening with this seal welding frock 1's reference block 6 in, still is favorable to applying the pretightning force to TR subassembly 2's C type opening simultaneously, prevents effectively that C type open-ended size is too big. The open heat dissipation surface of the TR element 2 can be brought into full contact engagement with the reference block 6 by applying a pre-tensioning force.

In one embodiment, when the thickness of the reference block 6 is smaller than the thickness of the reference member 3, so that a height difference is formed between the top wall surface and the bottom wall surface of the reference block 6 and the two side surfaces of the reference member 3, i.e. the top surface and the bottom surface, respectively, and the height difference constitutes the above-mentioned spacing distance, the region of the opening of the sealing tool 1 for accommodating the TR assembly 2 is the region between the spacing distances. Through the area between the spacing distances, the C-shaped opening of the TR component 2 can enter the area and be positioned in the spacing distance, and the sealing and welding tool 1 is matched.

In another embodiment, when the thickness of the reference block 6 is smaller than the thickness of the reference piece 3, a height difference is formed between the top wall surface and the bottom wall surface of the reference block 6 and the two side surfaces of the reference piece 3, that is, the top surface and the bottom surface, respectively, and a height difference is formed between the surface of the limiting edge 5 corresponding to the reference block 6 and the surface of the main body corresponding to the reference piece 3, that is, the height differences on the same side are superposed to form the above-mentioned separation distance, and through the region between the separation distances, the C-shaped opening of the TR component 2 enters the region, and the fitting with the sealing and welding tool 1 is completed.

In addition, in one embodiment, when the thickness of the reference block 6 is equal to the thickness of the reference member 3, a height difference is formed between the surface of the limit edge 5 corresponding to the reference block 6 and the surface of the main body corresponding to the reference member 3, and the height difference constitutes the separation distance. Through the area between the spacing distances, the C-shaped opening of the TR element 2 can enter the area within the spacing distance described above, enabling it to cooperate with the sealing tool 1 of the present invention.

In order to quickly complete the assembly of the TR assembly 2 and the sealing tool 1, the reference member 3 includes a guide portion 7 formed by the head ends of two opposite side portions of the reference member 3. Its advantage lies in, be convenient for TR subassembly 2 the C type opening with seal welding frock 1's installation cooperation, the opening can along the guide part 7 insert with seal welding frock 1 installation cooperation, to with the fixed effect of direction is played to TR subassembly 2 that seal welding frock 1 assembled makes the assembly more convenient fast simultaneously.

As will be understood by those skilled in the art, the top wall surface of the reference block 6 is correspondingly engaged with the upper surface for heat dissipation in the C-shaped opening of the TR module 2, and the bottom wall surface of the reference block 6 is correspondingly engaged with the lower surface in the C-shaped opening of the TR module 2. Through the cooperation between C type opening and the seal welding frock 1, can guarantee when accomplishing the seal welding, the cooling surface is level and smooth, and locating pin and locating hole axiality reduce open-ended deflection. The reference block 6 can limit the minimum size of the opening while the limit edge 5 can limit the maximum size of the opening. The tool is of an upper, middle and lower three-layer structure and comprises a reference block 6, a reference part 3 and fixing parts 4 on the upper side and the lower side of the reference part 3.

In one embodiment, two of the fixing members 4 are fixedly coupled to upper and lower side surfaces of the reference member 3 by bolts 8, respectively. The screwing bolt 8 can press-fit the heat dissipation surface of the opening of the TR component 2 with the reference block 6 through the limiting edge 5 to limit the minimum size of the opening and ensure central symmetry.

In one embodiment, the reference member 3 includes screw holes 9 corresponding to the bolts 8, and the screw holes 9 are uniformly arranged on the upper and lower side surfaces of the reference member 3. The densely arranged bolts 8 are beneficial to applying uniform pretightening force and effectively resist the thermal stress generated in the laser sealing welding process.

In one embodiment, an operating distance for welding operation is reserved between the inner side edge of the limiting edge 5 and the welding area of the upper surface and the lower surface of the product. Limiting edges 5 on fixing pieces 4 on the upper side and the lower side of a reference piece 3 are used for limiting the maximum size of the TR component 2 and a C-shaped opening of the TR component 2, the inner side edge of a further fixing piece 4 extends inwards by 0.5mm to form an operating distance for welding operation is reserved between the limiting edges 5 and welding areas on the surfaces of the upper side and the lower side of the TR component 2, the width has enough strength, meanwhile, a welding seam area can be avoided, and the welding operation is not influenced.

In addition, the size of the reference block 6 is slightly smaller than the C-shaped opening of the TR component 2 by 0.05mm, so that the TR component 2 is convenient to install, pretightening force is favorably exerted, and the C-shaped opening is prevented from being too large in size.

It should be noted that, the welding seam can not be sheltered from to 0.5 mm's spacing limit 5, can provide pretension limiting displacement simultaneously, need not dismantle the turning over of C type opening TR subassembly 2 at the completion welding frock 1 of one side, accomplish the another side and wait to seal between the apron 10 seal weld can, simple and convenient.

In a specific implementation process, referring to fig. 1-3, a sealing tool 1 is used by first loosening bolts 8 of the sealing tool 1 to remove fixing pieces 4 on two sides, inserting a reference block 6 on the sealing tool 1 into a C-shaped opening of a TR component 2, then fastening the fixing pieces 4 on the upper side wall surface and the lower side wall surface of the reference piece 3, screwing the bolts 8 to fix the fixing pieces 4, and pressing a heat dissipation surface of the TR component 2 by a limiting edge 5 without exceeding the limiting size of the reference block 6 and ensuring central symmetry. After the installation is accomplished, wait to seal welding apron 10 and can once accomplish the seal welding in the welding area on TR subassembly 2, the spacing limit 5 of seal welding frock 1 can not shelter from the welding seam, and can provide pretension limiting displacement. After one side of the TR component 2 is welded, the sealing and welding tool 1 does not need to be detached, the TR component 2 and the sealing and welding tool 1 provided by the invention are directly turned over, the sealing and welding of the cover plate 10 to be sealed and welded on the other side are finished, the TR component 2 finally subjected to sealing and welding can ensure the flatness of a radiating surface, the coaxiality of a positioning pin and the positioning hole and reduce the deformation of a C-shaped opening.

The seal welding tool can effectively reduce plane warping caused by laser seal welding, guarantees the positioning pin coaxiality and the guide hole coaxiality of the TR component, ensures that the size of the C-shaped opening and the thickness of the TR component accord with assembly standards, enables the TR component to have no interference in the assembly process, and improves production efficiency.

It should be understood that the above-described embodiments of the present invention are examples for clearly illustrating the invention, and are not to be construed as limiting the embodiments of the present invention, and it will be obvious to those skilled in the art that various changes and modifications can be made on the basis of the above description, and it is not intended to exhaust all embodiments, and obvious changes and modifications can be made on the basis of the technical solutions of the present invention.

Claims

1. The utility model provides a seal welding frock which characterized in that includes:

a reference member in a U-shaped structure; and

the tool further comprises a reference block formed on the reference part; the datum block is positioned in an area defined between the inner side wall of the datum part and the limiting edges on the two fixing parts;

the edge surfaces of the upper side surface and the lower side surface of the reference block and the corresponding limiting edge surfaces comprise a spacing distance;

the side wall surface of the reference block is fixedly combined with the inner wall surface of the corresponding reference piece, and the upper side surface and the lower side surface of the reference block are flat surfaces.

2. The seal welding tool of claim 1, wherein the thickness of the datum block is smaller than the thickness of the datum part.

3. The seal welding tool according to claim 1, wherein the thickness of the reference block is equal to that of the reference piece, and a height difference is formed between the surface of the limiting edge corresponding to the reference block and the surface of the main body corresponding to the reference piece, and the height difference constitutes the spacing distance.

4. The seal welding tool according to claim 1, wherein the datum part comprises a guide part formed by head ends of two opposite side parts of the datum part.

5. The seal welding tool according to claim 1, wherein the two fixing pieces are fixed on the upper side surface and the lower side surface of the reference piece respectively through bolt combination.

6. The seal welding tool according to claim 5, wherein the reference member comprises screw holes corresponding to the bolts, and the screw holes are uniformly distributed on the upper side surface and the lower side surface of the reference member.

7. The seal welding tool according to claim 1, wherein an operating distance for welding operation is reserved between the inner side edge of the limiting edge and the welding areas of the upper side surface and the lower side surface of the product.