Waveguide antenna welding preheating device

Abstract

The utility model provides a waveguide antenna welding preheating device which comprises a fixed plate and a movable plate, the fixed plate is used for being fixedly installed on a rack, the movable plate is used for being connected with a driving unit installed on the rack, and the waveguide antenna welding preheating device is characterized in that the fixed plate is provided with a first positioning block used for being matched with a positioning area on the surface of a lower cover plate of a waveguide antenna; a second positioning block matched with a positioning area on the surface of an upper cover plate of the waveguide antenna is arranged on the movable plate; an adsorption unit is arranged on the second positioning block and is used for adsorbing the waveguide antenna cover plate before welding; heating units are arranged on the sides, close to the welding area, of the first positioning block and the second positioning block, and the heating units are used for preheating the welding parts of the upper cover plate and the lower cover plate of the waveguide antenna. According to the utility model, clamping, fixing and preheating are integrated in actual use, and the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waveguide processing equipment, in particular to a waveguide antenna welding preheating device. Background Art

[0002] Large waveguide antennas often have larger sizes due to their operating frequency, gain, and beam pointing requirements. This large size helps to better radiate and receive signals and improve the performance of the antenna. The working principle of waveguide antennas is to transmit and radiate high-frequency signals through waveguides, so their precision requirements are very high. Factors such as the size, shape, and surface quality of the waveguide will affect the performance of the antenna and need to be strictly controlled.

[0003] When soldering the waveguide antenna, the following steps need to be performed: Cleaning: First, the waveguide antenna and the welding area must be thoroughly cleaned to remove possible oil, dust and other debris. You can use alcohol cotton or a special cleaner to gently wipe the welding area to ensure that the surface is clean and free of stains. Check the antenna material: Check the materials of the waveguide antenna to ensure that they are not damaged, cracked or otherwise defective. If any problems are found, they should be repaired or replaced in a timely manner. Grinding and trimming: If there are problems such as unevenness, burrs or oxide layers in the welding area, you can use a grinding tool to grind and trim. This will help ensure that the solder can flow evenly and smoothly during welding and improve the quality of welding. Apply solder paste: Apply a thin layer of solder paste to the interface that needs to be soldered. Solder paste can help the solder adhere better to the antenna and welding points during welding, avoid uneven solder flow during welding, and affect the welding quality and antenna performance. Drying treatment: Make sure that the solder wire, soldering station and the antenna itself are dry. If there is moisture or other liquid residue, it may cause problems such as bubbles or cold soldering during welding. Preheating: Before welding, the waveguide antenna can be properly preheated. This helps to reduce thermal stress during welding.

[0004] The main purpose of welding preheating is to improve the weldability of the material. In the process of heating and maintaining a certain temperature, the temperature difference in the welding joint area can be reduced, the brittleness and hardness tendency of the heat-affected zone can be weakened, which is conducive to the overflow of hydrogen during the welding process, reducing the hydrogen content in the weld, preventing the occurrence of cold cracks, and improving the plasticity and toughness of the welding joint.

[0005] In the prior art, when preheating the cover plate of the waveguide antenna, the cover plate is generally placed in a preheating furnace for heating. However, it is inconvenient to transfer after heating, and a fixture needs to be used to fix it during welding to ensure the quality of the waveguide after welding. The welding of the waveguide antenna is completed by preheating, transferring the cover plate, clamping, and welding. The overall process has the technical problem of inconvenient movement, and the overall welding process has cumbersome steps. Utility Model Content

[0006] The purpose of the present utility model is to provide a waveguide antenna welding preheating device, which integrates clamping fixation and preheating in actual use and is more convenient to operate.

[0007] In order to solve the above technical problems, the technical solution adopted by the present utility model is:

[0008] A waveguide antenna welding preheating device includes a fixed plate and a moving plate. The fixed plate is used for fixed installation on a frame, and the moving plate is used for connection with a driving unit installed on the frame. A first positioning block for matching with the surface positioning area of the lower cover plate of the waveguide antenna is arranged on the fixed plate; a second positioning block for matching with the surface positioning area of the upper cover plate of the waveguide antenna is arranged on the moving plate;

[0009] An adsorption unit is arranged on the second positioning block, and the adsorption unit is used for adsorbing the waveguide antenna cover plate before welding;

[0010] Heating units are arranged on both the first positioning block and the second positioning block on the side close to the welding area, and the heating units are used for preheating the welding parts of the upper cover plate and the lower cover plate of the waveguide antenna.

[0011] Furthermore, the heating unit includes an electric heating block and a heat insulation sleeve. Installation grooves are arranged on both the first positioning block and the second positioning block, the heat insulation sleeve is fixedly arranged in the installation groove, and the electric heating block is installed in the heat insulation sleeve.

[0012] Wherein, a limiting platform is arranged on the fixed plate, and a positioning groove for matching with the connecting part of the end face of the lower cover plate is arranged on the limiting platform.

[0013] In actual use, a guiding surface is arranged on the limiting platform, and the guiding surface is connected to the positioning groove.

[0014] Furthermore, a connecting component is arranged at the upper end of the moving plate, and the connecting component is used for connection with the driving unit. The connecting component includes a connecting cylinder, a first spring and a connecting rod. The connecting cylinder is fixedly arranged on the moving plate, the connecting rod is slidably arranged in the connecting cylinder, a connecting flange is arranged at the upper end of the connecting rod, the first spring is sleeved on the connecting cylinder, the upper end of the first spring is connected to the connecting flange, and the lower end is connected to the connecting cylinder. The connecting flange is used for connection with the driving unit.

[0015] Wherein, the adsorption unit includes a negative pressure machine and a pipeline. A connecting hole and a negative pressure hole are arranged on the second positioning block, the negative pressure hole is communicated with the connecting hole, and the connecting hole is connected to the negative pressure machine through the pipeline.

[0016] Further, the adsorption unit further includes a movable block, a rubber pad and a second spring. The negative pressure hole is a stepped hole. The movable block is slidably and sealingly arranged in the negative pressure hole. The rubber pad is fixedly arranged on the movable block. A first negative pressure hole is arranged on the rubber pad and the movable block. The second spring is located in the negative pressure hole, with its upper end contacting the stepped surface of the negative pressure hole and its lower end connected to the movable block.

[0017] Further, the sliding seal connection between the movable block and the negative pressure hole is achieved through a sliding seal ring.

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

[0019] The utility model is mainly used to clamp and fix the cover plate during the welding of the waveguide antenna, and at the same time preheat the cover plate of the waveguide antenna to improve the welding effect. In actual use, the lower cover plate is placed on the first positioning block on the fixed plate, so that the first positioning block corresponds to the first positioning area on the lower cover plate to achieve the positioning of the lower cover plate. At the same time, the upper cover plate is brought into contact with the second positioning block to achieve the positioning of the upper cover plate. At this time, the adsorption unit fixes the upper cover plate, and under the action of the driving unit, the upper cover plate moves towards the lower cover plate and contacts. At this time, the heating unit is used to preheat the welding parts of the upper cover plate and the lower cover plate of the waveguide antenna to increase the temperature of the upper cover plate and the lower cover plate, and achieve rapid preheating of the upper cover plate and the lower cover plate under the action of the heating unit. Under the action of the driving unit, the upper cover plate and the lower cover plate are closely contacted, so as to facilitate the welding robot to weld at the position to be welded. After welding, the driving unit drives the upper cover plate to move upward, so that the overall formed waveguide antenna after welding moves upward, which is convenient to remove the welded waveguide antenna. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a schematic diagram of the overall structure of the waveguide antenna to be welded of the present utility model.

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

[0023] Figure 3 It is a schematic diagram of the use state of the present utility model.

[0024] Figure 4 It is a schematic diagram of the structure of the connection component of the present utility model.

[0025] Figure 5 For the present utility model Figure 4 is a partial enlarged schematic view of part A in it.

[0026] Reference numerals:

[0027] 101 fixed plate, 102 moving plate, 103 waveguide antenna, 104 lower cover plate, 105 positioning area, 106 first positioning block, 107 upper cover plate, 108 second positioning block, 109 adsorption unit, 110 heating unit, 111 electric heating block, 112 heat insulation sleeve, 113 installation groove, 114 limiting platform, 115 positioning groove, 116 guiding surface, 117 connecting component, 118 connecting cylinder, 119 first spring, 120 connecting rod, 121 connecting flange, 122 connecting hole, 123 negative pressure hole, 124 sliding sealing ring, 125 rubber pad, 126 first negative pressure hole, 127 movable block, 128 second spring, 129 guiding component. Specific embodiments

[0028] In the following, 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 the description are regarded as being essentially exemplary rather than restrictive.

[0029] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and 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, and therefore cannot be understood as a limitation to the embodiments of the present utility model.

[0030] 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, the 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, "a plurality" means two or more unless otherwise specifically defined.

[0031] In the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall 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 circumstances.

[0032] 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 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 therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0033] 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.

[0034] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0035] Refer to Figures 1 - 5 , this embodiment discloses a preheating and positioning device, specifically a waveguide antenna welding preheating device, including a fixing plate 101 and a moving plate 102. The fixing plate 101 is used for fixed installation on the frame, and the moving plate 102 is used for connection with a driving unit installed on the frame; in actual use, the driving unit can adopt a telescopic rod, such as a pneumatic telescopic rod or a hydraulic telescopic rod;

[0036] A first positioning block 106 for matching with the surface positioning area 105 of the lower cover plate 104 of the waveguide antenna 103 is arranged on the fixing plate 101; a second positioning block 108 for matching with the surface positioning area 105 of the upper cover plate 107 of the waveguide antenna 103 is arranged on the moving plate 102;

[0037] An adsorption unit 109 is arranged on the second positioning block 108, and the adsorption unit 109 is used to adsorb the cover plate of the waveguide antenna 103 before welding;

[0038] Heating units 110 are arranged on both the first positioning block 106 and the second positioning block 108 on the side close to the welding area. The heating units 110 are used to preheat the welding parts of the upper cover plate 107 and the lower cover plate 104 of the waveguide antenna 103.

[0039] The utility model is mainly used to clamp and fix the cover plate during the welding of the waveguide antenna 103, and at the same time preheat the cover plate of the waveguide antenna 103 to improve the welding effect; in actual use, the lower cover plate 104 is placed on the first positioning block 106 on the fixed plate 101, so that the first positioning block corresponds to the first positioning area 105 on the lower cover plate 104 to realize the positioning of the lower cover plate 104; at the same time, the upper cover plate 107 is contacted with the second positioning block 108 to realize the positioning of the upper cover plate 107. At this time, the adsorption unit 109 fixes the upper cover plate 107, and under the action of the driving unit, the upper cover plate 107 moves towards the lower cover plate 104 and contacts it; at this time, the heating unit 110 is used to preheat the welding parts of the upper cover plate 107 and the lower cover plate 104 of the waveguide antenna 103 to increase the temperature of the upper cover plate 107 and the lower cover plate 104, and realize the rapid preheating of the upper cover plate 107 and the lower cover plate 104 under the action of the heating unit; under the action of the driving unit, the upper cover plate 107 is in close contact with the lower cover plate 104, so that the welding robot can perform spot welding operations on the position to be welded. After spot welding is completed, the upper cover plate 107 and the lower cover plate 104 can be welded together. The driving unit drives the upper cover plate 107 to move upward, so that the whole waveguide antenna 103 formed after welding moves upward, which is convenient for removing the welded waveguide antenna 103.

[0040] The removed waveguide antenna 103 is put into a vacuum brazing furnace for vacuum brazing; in specific implementation, a welding filler needs to be arranged between the upper cover plate 107 and the lower cover plate 104 before welding; after positioning the cover plate 107 and the lower cover plate 104, spot welding is used to connect them to realize the fixation of the position. Preheating can reduce large deformation during welding; the waveguide antenna 103 after side welding enters the vacuum brazing furnace for vacuum brazing to obtain the final product. In this way, there will be no slipping during vacuum brazing, which greatly improves the welding quality.

[0041] Among them, the heating unit 110 includes an electric heating block 111 and a heat insulation sleeve 112. Installation grooves 113 are provided on both the first positioning block 106 and the second positioning block 108. The heat insulation sleeve 112 is fixedly arranged in the installation groove 113, and the electric heating block 111 is installed in the heat insulation sleeve 112. The provided heat insulation sleeve 112 can achieve the purpose of heat insulation and reduce the influence of heat on the adsorption unit 109.

[0042] As an option, in actual use, since the lower cover plate 104 and the upper cover plate 107 of the waveguide antenna 103 are both made of metal materials, the heating unit 110 can be heated by an electromagnetic heating coil to improve the heating speed, so that the lower cover plate 104 and the upper cover plate 107 of the waveguide antenna 103 generate heat by themselves, which can further reduce the influence on the adsorption unit 109.

[0043] Furthermore, a limiting platform 114 is provided on the fixing plate 101, and a positioning groove 115 matching the end connection part of the lower cover plate 104 is provided on the limiting platform 114. The provided positioning groove 115 can further position the lower cover plate 104.

[0044] Among them, a guiding surface 116 is provided on the limiting platform 114, and the guiding surface 116 is connected to the positioning groove 115; the provided guiding surface 116 can serve the purpose of guiding and facilitate the lower cover plate 104 to enter the positioning groove 115 more smoothly.

[0045] Among them, a connecting component 117 is provided at the upper end of the moving plate 102. The connecting component 117 is used to connect with the driving unit. The connecting component 117 includes a connecting cylinder 117, a first spring 119 and a connecting rod 120. The connecting cylinder 117 is fixedly arranged on the moving plate 102. The connecting rod 120 is slidably arranged in the connecting cylinder 117. A connecting flange 121 is provided at the upper end of the connecting rod 120. The first spring 119 is sleeved on the connecting cylinder 117. The upper end of the first spring 119 is connected to the connecting flange 121, and the lower end is connected to the connecting cylinder 117. The connecting flange 121 is used to connect with the driving unit.

[0046] The provided connecting cylinder 117, first spring 119 and connecting rod 120 can form a buffer contact to avoid hard contact when the upper cover plate 107 and the lower cover plate 104 are in direct contact, which may cause damage to the upper cover plate 107 or the lower cover plate 104.

[0047] Among them, the adsorption unit 109 includes a negative pressure machine and a pipeline. A connection hole 122 and a negative pressure hole 123 are provided on the second positioning block 108. The negative pressure hole 123 is communicated with the connection hole 122. The connection hole 122 is connected to the negative pressure machine through the pipeline.

[0048] When the second positioning block 108 contacts and matches the positioning area 105 on the upper cover plate 107, under the action of the negative pressure machine at this time, the upper cover plate 107 is in close contact with the second positioning block 108, and at the same time, the adsorption of the upper cover plate 107 is realized. This makes the upper cover plate 107 and the lower cover plate 104 more stable when approaching each other.

[0049] Among them, the adsorption unit 109 further includes a movable block 127, a rubber pad 125 and a second spring 128. The negative pressure hole 123 is a stepped hole. The movable block 127 is slidably and sealedly arranged in the negative pressure hole 123. The rubber pad 125 is fixedly arranged on the movable block 127. A first negative pressure hole 126 is arranged on the rubber pad 125 and the movable block 127. The second spring 128 is located in the negative pressure hole 123, with the upper end contacting the stepped surface of the negative pressure hole 123 and the lower end connected to the movable block 127.

[0050] This can enable the movable block 127 to move in the negative pressure hole 123, and can improve the adsorption force after the rubber pad 125 contacts the upper cover plate 107. At the same time, since the sliding block can move, the second positioning block 108 can better contact the surface positioning area 105 on the surface of the upper cover plate 107.

[0051] Furthermore, a sliding seal connection is realized between the movable block 127 and the negative pressure hole 123 through a sliding seal ring 124.

[0052] Furthermore, in actual use, the fixed plate 101 and the movable plate are connected through a guiding component 129. The guiding component includes a guide post and a guide hole arranged on the moving plate 102. The guide post is fixedly arranged on the fixed cover plate and is slidably matched with the guide hole; a support spring is sleeved on the guide post. The upper end of the support spring is connected to the moving plate 102, and the lower end is connected to the fixed plate 101. A limit nut is arranged at the upper end of the guide post.

[0053] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted to include the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. It should be noted that any modifications, equivalent replacements, 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 waveguide antenna welding preheating device, comprising a fixed plate and a moving plate. The fixed plate is used for fixedly installing on a frame, and the moving plate is used for connecting with a driving unit installed on the frame. It is characterized in that: A first positioning block for matching with the surface positioning area of the lower cover plate of the waveguide antenna is arranged on the fixed plate; a second positioning block for matching with the surface positioning area of the upper cover plate of the waveguide antenna is arranged on the moving plate; An adsorption unit is arranged on the second positioning block, and the adsorption unit is used for adsorbing the waveguide antenna cover plate before welding; Heating units are arranged on both the first positioning block and the second positioning block on the side close to the welding area. The heating units are used for preheating the welding parts of the upper cover plate and the lower cover plate of the waveguide antenna.

2. The waveguide antenna welding preheating device according to claim 1, characterized in that: The heating unit includes an electric heating block and a heat insulation sleeve. Installation grooves are arranged on both the first positioning block and the second positioning block. The heat insulation sleeve is fixedly arranged in the installation groove, and the electric heating block is installed in the heat insulation sleeve.

3. A waveguide antenna soldering preheating device according to claim 1, characterized in that: A limiting platform is arranged on the fixed plate, and a positioning groove for matching with the end connection part of the lower cover plate is arranged on the limiting platform.

4. A waveguide antenna soldering preheating device according to claim 3, characterized in that: A guiding surface is arranged on the limiting platform, and the guiding surface is connected to the positioning groove.

5. A waveguide antenna soldering preheating device according to claim 1, characterized in that: A connecting component is arranged at the upper end of the moving plate. The connecting component is used for connecting with the driving unit. The connecting component includes a connecting cylinder, a first spring and a connecting rod. The connecting cylinder is fixedly arranged on the moving plate. The connecting rod is slidably arranged in the connecting cylinder. A connecting flange is arranged at the upper end of the connecting rod. The first spring is sleeved on the connecting cylinder. The upper end of the first spring is connected to the connecting flange, and the lower end is connected to the connecting cylinder. The connecting flange is used for connecting with the driving unit.

6. A waveguide antenna soldering preheating device according to any one of claims 1-5, characterized in that: The adsorption unit includes a negative pressure machine and a pipeline. A connecting hole and a negative pressure hole are arranged on the second positioning block. The negative pressure hole is communicated with the connecting hole. The connecting hole is connected to the negative pressure machine through the pipeline.

7. A waveguide antenna soldering preheating device according to claim 6, characterized in that: The adsorption unit further includes a movable block, a rubber pad and a second spring. The negative pressure hole is a stepped hole. The movable block is slidably and sealingly arranged in the negative pressure hole. The rubber pad is fixedly arranged on the movable block. A first negative pressure hole is arranged on the rubber pad and the movable block. The second spring is located in the negative pressure hole, and the upper end contacts the stepped surface of the negative pressure hole, and the lower end is connected to the movable block.

8. The waveguide antenna soldering preheating device according to claim 7, wherein: The movable block and the negative pressure hole are slidably and sealingly connected through a sliding sealing ring.

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