Welding positioning tool for waveguide heat dissipation composite board

Abstract

The utility model provides a waveguide heat dissipation composite board welding positioning tool which comprises a supporting plate used for being installed on a rack, a supporting seat arranged on the supporting plate, a blocking frame arranged on the outer side of the supporting seat in a sliding and sleeving mode and a driving unit connected with the blocking frame, and the driving unit is used for driving the blocking frame to move. A positioning area is formed by the blocking frame and the top of the supporting seat, a receding groove communicated with the positioning area is formed in the blocking frame, a plurality of positioning columns are arranged on the supporting seat, and the positions of the positioning columns correspond to positioning holes formed in the composite board; a pressing unit installed on the rack is further arranged above the supporting base and used for pressing the composite plate on the supporting plate. The pressing unit comprises an upper mounting plate, a first telescopic rod arranged on the upper mounting plate and a pressing plate provided with a guide cylinder, the movable end of the first telescopic rod is slidably mounted in the guide cylinder, and the first telescopic rod is sleeved with a spring. According to the utility model, rapid positioning and splicing of the composite board can be realized, so that the welding quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a welding positioning tooling for a waveguide heat dissipation composite plate. Background Technique

[0002] The waveguide antenna is formed by a cavity, a solder pad and a cover plate through vacuum brazing (hereinafter referred to as welding). The technical requirements for vacuum brazing welding are: firm welding, clean surface, no oxidation and yellowing on the surface, and no excess materials and oxidation and yellowing in the waveguide cavity.

[0003] The existing waveguide heat dissipation composite plates generally consist of multiple layers of structures. By setting cavities on the composite plates, then filling cooling materials inside the composite cavities, and then placing the composite plates on the positioning tooling for positioning, so that the two composite plates can be aligned for welding, and solder with a thickness of 0.03 mm is placed in the middle of the composite plates and welded.

[0004] When welding the heat dissipation composite plates, it is necessary to align the two composite plates to ensure the welding effect. In aluminum alloy vacuum brazing, the function of the tooling is to fix the brazing assembly and the filler metal together, form an appropriate gap at the connection of the components, the filler metal melts and is capillary adsorbed in the gap to form a brazing seam, and keep the relative positions of the components unchanged during the brazing process to ensure its dimensional tolerance. The brazing tooling involves the entire process of fixing, assembling, furnace charging, brazing, and furnace discharging of the brazing parts. Whether the fixture is reasonable and practical directly affects the brazing quality.

[0005] The invention patent with the publication number of CN112958866B discloses a method for vacuum brazing a large-size outer ring welding assembly, including assembly and energy storage spot welding: after installing the honeycomb on the outer ring base body, first perform pre-positioning and then perform strengthening positioning; during pre-positioning, energy storage spot welding is performed in a symmetric positioning and sub-positioning manner; during strengthening positioning, energy storage spot welding is performed in a layered positioning and staggered positioning manner. Through pre-positioning and strengthening positioning, it is ensured that the honeycomb assembly is firmly and reliably positioned, meeting the subsequent vacuum brazing gap requirements and not damaging the honeycomb; at the same time, the vacuum brazing process parameters are optimized, the holding time at a stable temperature of 950 °C is extended to 40 - 50 min, the influence of the large-size effect of the outer ring base body is reduced, the temperature gradient is decreased, and the temperatures of its various parts are made uniform; the vacuum brazing temperature is increased to 1045 °C, and the brazing holding time is extended to 10 - 20 min, ensuring the honeycomb brazing quality while avoiding the dissolution of the base material and the blockage of the honeycomb holes.

[0006] When aligning the composite plates in the prior art, alignment errors are likely to occur, resulting in a decline in welding quality, and there is a lack of a positioning tooling for the waveguide heat dissipation composite plates before welding. Utility Model Content

[0007] The purpose of the present utility model is to provide a welding positioning tooling for a waveguide heat dissipation composite plate, which can achieve the rapid positioning and splicing of the composite plate to ensure the welding quality.

[0008] To solve the above technical problems, the technical solution adopted by the present utility model is as follows:

[0009] A welding positioning tooling for a waveguide heat dissipation composite plate includes a support plate for installation on a frame. The present utility model further includes a support seat arranged on the support plate, a stop frame slidably sleeved outside the support seat, and a driving unit connected to the stop frame. The driving unit is used to drive the stop frame to move;

[0010] Wherein, a positioning area is formed between the stop frame and the top of the support seat. A relief groove communicating with the positioning area is arranged on the stop frame, and a plurality of positioning posts are arranged on the support seat. The positions of the positioning posts correspond to the positioning holes arranged on the composite plate;

[0011] A pressing unit installed on the frame is further arranged above the support seat. The pressing unit is used to press the composite plate onto the support plate.

[0012] Wherein, support posts are arranged on the support plate, and the support seat is connected to the support plate through the support posts.

[0013] Furthermore, an extension part is arranged on the stop frame, a guide post is fixedly arranged on the extension part, and a guide hole is arranged on the support plate. The guide post passes through the guide hole.

[0014] Preferably, a guiding inclined surface is arranged on the side of the stop frame facing the positioning area.

[0015] Furthermore, a hard rubber protective pad is arranged on the guiding inclined surface.

[0016] Wherein, the driving unit includes a telescopic rod. The telescopic rod is installed on the support plate, and the movable end of the telescopic rod is fixedly connected to the stop frame; the telescopic rod is an electric, pneumatic or hydraulic telescopic rod.

[0017] For further optimization, the pressing unit includes an upper mounting plate, a first telescopic rod arranged on the upper mounting plate, and a pressing plate provided with a guide cylinder. The movable end of the first telescopic rod is slidably installed in the guide cylinder. A spring is sleeved on the first telescopic rod. The lower end of the spring is fixedly connected to the guide cylinder, and the upper end is fixedly connected to the side wall of the movable end of the first telescopic rod.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] The utility model is mainly used to realize the positioning of composite plates. In actual use, a positioning area is formed between the support base and the retaining frame, and this positioning area matches the composite plate. After placing the composite plate in the positioning area, the positioning posts on the support base will pass through the positioning holes on the composite plate to realize the positioning of the composite plate. After stacking two composite plates together, at this time, the pressing unit presses the composite plates tightly on the support base. Then, the driving unit drives the retaining frame to descend, exposing the sides of the composite plates for welding. After welding is completed, the pressing unit rises, and the welded composite plates can be removed. The utility model can realize the rapid positioning and splicing of composite plates to ensure the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0022] Figure 2 It is a schematic diagram of the internal structure of the present utility model.

[0023] Figure 3 It is a schematic diagram of the state of the composite plate of the present utility model located in the positioning area.

[0024] Reference numerals:

[0025] 101 support plate, 102 support base, 103 retaining frame, 104 driving unit, 105 positioning area, 106 relief groove, 107 positioning post, 108 pressing unit, 109 support column, 110 extension part, 111 guide post, 112 guide hole, 113 linear bearing, 114 guiding inclined surface, 115 mounting plate, 116 first telescopic rod, 117 guide cylinder, 118 pressing plate, 119 spring, 120 first positioning hole, 121 composite plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.

[0027] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0029] In the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0030] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0033] Refer to Figures 1 - 3 , this embodiment discloses a positioning tooling structure, specifically a welding positioning tooling for a waveguide heat dissipation composite plate, which is used to realize the positioning during the welding of the waveguide heat dissipation composite plate 121; the tooling includes a support plate 101 for installation on a frame, and this embodiment further includes a support seat 102 arranged on the support plate 101, a retaining frame 103 slidably sleeved outside the support seat 102, and a driving unit 104 connected to the retaining frame 103, and the driving unit 104 is used to drive the retaining frame 103 to move;

[0034] Wherein, the retaining frame 103 and the top of the support seat 102 form a positioning area 105, a relief groove 106 communicating with the positioning area 105 is arranged on the retaining frame 103, and a plurality of positioning posts 107 are arranged on the support seat 102, and the positions of the positioning posts 107 correspond to the positioning holes arranged on the composite plate 121;

[0035] A pressing unit 108 installed on the frame is further arranged above the support seat 102, and the pressing unit 108 is used to press the composite plate 121 onto the support plate 101.

[0036] In the accompanying drawings of this application, the frame is not drawn.

[0037] The present utility model is mainly used to realize the positioning of the composite plate 121. In actual use, a positioning area 105 is formed between the support seat 102 and the retaining frame 103, and this positioning area 105 matches the composite plate 121. After the composite plate 121 is placed and positioned inside the area, at this time, the positioning posts 107 on the support seat 102 will pass through the positioning holes on the composite plate 121 to realize the positioning of the composite plate 121; after two composite plates 121 are stacked together, at this time, the pressing unit 108 presses the composite plate 121 tightly onto the support seat 102. At this time, the driving unit 104 drives the retaining frame 103 to descend, exposing the side surface of the composite plate 121 for welding the composite plate 121. After welding is completed, the pressing unit 108 rises, and the welded composite plate 121 can be taken off. The present utility model can realize the rapid positioning and splicing of the composite plate 121 to ensure the welding quality.

[0038] The present utility model is mainly used to realize the welding of the sides of two composite plates 121. Specifically, spot welding can be adopted to realize the spot welding positioning of the composite plates, which is convenient for subsequent brazing treatment; in actual use, a solder is arranged between the two composite plates 121, and the side-welded composite plates 121 are put into a vacuum brazing furnace for brazing, so that the solder melts to realize the overall welding of the composite plates 121. Spot welding can effectively position the composite plates 121 and the solder, improving the quality of the welded products.

[0039] Among them, a support column 109 is provided on the support plate 101, and the support seat 102 is connected to the support plate 101 through the support column 109.

[0040] Furthermore, an extension part 110 is provided on the retaining frame 103, a guide post 111 is fixedly provided on the extension part 110, a guide hole 112 is provided on the support plate 101, and the guide post 111 passes through the guide hole 112. The arranged guide hole 112 and guide post 111 can make the retaining frame 103 move more stably.

[0041] Furthermore, a linear bearing 113 or a bushing is arranged between the guide post 111 and the guide hole 112.

[0042] Furthermore, in actual use, a guiding inclined surface 114 is provided on the side of the retaining frame 103 facing the positioning area 105. Through the arranged guiding inclined surface 114, the guiding of the composite board 121 can be realized, so that the composite board 121 can enter the positioning area 105 more accurately.

[0043] Furthermore, in some preferred implementation cases, a hard rubber protective pad is provided on the guiding inclined surface 114. So as to realize the protection of the composite board 121 and avoid damage to the composite board 121 after contacting the retaining frame 103.

[0044] Among them, the driving unit 104 includes a telescopic rod, the telescopic rod is installed on the support plate 101, and the movable end of the telescopic rod is fixedly connected to the retaining frame 103; the telescopic rod is an electric, pneumatic or hydraulic telescopic rod.

[0045] Furthermore, the pressing unit 108 includes an upper mounting plate 115, a first telescopic rod 116 provided on the upper mounting plate 115, and a pressing plate 118 provided with a guide cylinder 117. The movable end of the first telescopic rod 116 is slidably installed in the guide cylinder 117. A spring 119 is sleeved on the first telescopic rod 116. The lower end of the spring 119 is fixedly connected to the guide cylinder 117, and the upper end is fixedly connected to the side wall of the movable end of the first telescopic rod 116.

[0046] In this way, during the pressing process, after the pressing plate 118 contacts the composite board 121, at this time, since the guide cylinder 117 is slidably connected to the movable end of the first telescopic rod 116, during the continuous elongation of the first telescopic rod 116, the spring 119 will be compressed, avoiding the direct contact between the first telescopic rod 116 and the composite board 121. The compression amount of the spring 119 is controlled by the elongation amount of the movable end of the first telescopic rod 116, thereby realizing the adjustment of the pressing force; at the same time, the protection of the first telescopic rod 116 can also be realized.

[0047] In actual use, a first positioning hole 120 is provided on the pressing plate 118.

[0048] Furthermore, in some preferred implementation cases, a limiting protrusion is provided on the inner wall of the baffle frame 103, and a clearance groove 106 is provided on the support seat 102. After welding is completed, when the driving unit 104 drives the baffle frame 103 to move upward, the limiting protrusion contacts the composite plate 121, and the welded composite plate 121 is lifted upward from the support seat 102, thereby achieving the purpose of quick disengagement.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding positioning tooling for a waveguide heat dissipation composite plate, comprising a support plate for mounting on a frame, characterized in that: It further includes a support base arranged on the support plate, a retaining frame slidably sleeved outside the support base, and a driving unit connected to the retaining frame, the driving unit being used to drive the retaining frame to move; Wherein, the retaining frame and the top of the support base form a positioning area, a relief groove communicating with the positioning area is arranged on the retaining frame, and a plurality of positioning posts are arranged on the support base, and the positions of the positioning posts correspond to the positioning holes arranged on the composite board; Above the support base, a pressing unit installed on the frame is further arranged, and the pressing unit is used to press the composite board onto the support plate.

2. The welding positioning tooling for a waveguide heat dissipation composite plate according to claim 1, wherein: Support posts are arranged on the support plate, and the support base is connected to the support plate through the support posts.

3. A welding positioning tooling for a waveguide heat dissipation composite plate according to claim 1, characterized in that: An extension part is arranged on the retaining frame, a guide post is fixedly arranged on the extension part, and a guide hole is arranged on the support plate, and the guide post passes through the guide hole.

4. A welding positioning tooling for a waveguide heat dissipation composite plate according to claim 1, characterized in that: A guiding inclined surface is arranged on one side of the retaining frame facing the positioning area.

5. The welding positioning tooling for a waveguide heat dissipation composite plate according to claim 4, characterized in that: A hard rubber protective pad is arranged on the guiding inclined surface.

6. A welding positioning tooling for a waveguide heat dissipation composite plate according to any one of claims 1-5, characterized in that: The driving unit includes a telescopic rod, the telescopic rod is installed on the support plate, and the movable end of the telescopic rod is fixedly connected to the retaining frame; the telescopic rod is an electric, pneumatic or hydraulic telescopic rod.

7. A welding positioning tooling for a waveguide heat dissipation composite plate according to any one of claims 1-5, characterized in that: The pressing unit includes an upper mounting plate, a first telescopic rod arranged on the upper mounting plate, and a pressing plate provided with a guide cylinder. The movable end of the first telescopic rod is slidably installed in the guide cylinder. A spring is sleeved on the first telescopic rod, the lower end of the spring is fixedly connected to the guide cylinder, and the upper end is fixedly connected to the side wall of the movable end of the first telescopic rod.

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