High-precision welding tool for triangular unit block framework of partitioned metal truss cover

Abstract

The invention discloses a partitioned metal truss cover triangular unit block framework high-precision welding tool which comprises an operation platform and a positioning assembly arranged on the operation platform and used in cooperation with a triangular unit block. The positioning assembly comprises three node positioning supporting columns, three rod piece positioning supporting columns, three U-shaped rod piece supporting plates and three corner supporting plates, and the three U-shaped rod piece supporting plates and the three node positioning supporting columns are distributed in a triangular shape. According to the high-precision welding tool for the triangular unit block framework of the partitioned metal truss cover, the three U-shaped rod piece supporting plates are used for positioning the three rod pieces, under the cooperation of the three corner supporting plates and the three rod piece positioning supporting columns, the three rod pieces are positioned, meanwhile, the three node positioning supporting columns are used for limiting the ends of the three node columns, and the welding efficiency is improved. Stable and reliable positioning is provided for welding between the rod piece and the joint column, and effective support is provided for high-precision welding of the triangular unit block.

Description

Technical Field

[0001] The invention relates to the technical field of antenna covers, and in particular to a high-precision welding tool for a triangular unit block skeleton of a segmented metal truss cover. Background Art

[0002] The segmented metal truss cover is widely used in large ground radar equipment due to its excellent structural and electrical properties. It is usually assembled from a number of irregularly shaped spatial triangular unit blocks. In the segmented metal truss cover, the shape accuracy of the triangular unit block itself is the key factor in the installation of the radome, affecting the assembly efficiency and installation accuracy of the radome. In order to ensure the structural strength, as shown in the attached Figure 2 As shown, the triangular unit block skeleton is usually welded by three rods and three node columns. The welding surfaces between the rods and the node columns are usually located on different spatial planes, which brings considerable difficulty to the precision control during skeleton welding.

[0003] Conventional welding methods and welding tools cannot perform high-precision spatial positioning of rods and node columns. In addition, due to the wide variety of triangular unit blocks that make up the antenna cover, the high-precision welding of the triangular unit blocks is troubled. Therefore, a high-precision welding tool for the triangular unit block skeleton of a segmented metal truss cover is proposed to stably position the triangular unit blocks and provide reliable support for the high-precision welding of the triangular unit blocks. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a high-precision welding tool for the triangular unit block skeleton of a segmented metal truss cover, which solves the problem that conventional welding methods and welding tooling are unable to perform high-precision spatial positioning of rods and node columns, and that the high-precision welding of the triangular unit blocks is troubled by the wide variety of triangular unit blocks that make up the antenna cover.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-precision welding tool for a triangular unit block skeleton of a divided metal truss cover, comprising an operating platform, and a positioning component arranged on the operating platform for use with the triangular unit block, the positioning component comprising three node positioning support columns, three rod positioning support columns, three U-shaped rod support plates and three corner support plates, the three U-shaped rod support plates and the three node positioning support columns are all distributed in a triangle, and two adjacent U-shaped rod support plates are rotatably connected by a corner support plate, the three node positioning support columns are used in conjunction with the triangular unit block, the rod positioning support column is arranged at the midpoint of the line connecting the axes of two adjacent node positioning support columns, and is used in conjunction with the U-shaped rod support plate, the three node positioning support columns and the three rod positioning support columns are all fixedly mounted on the top of the operating platform, and the U-shaped rod support plate is used in conjunction with the triangular unit block.

[0006] The present invention is further configured as follows: the triangular unit block includes three node columns and three rods, the surface of the rods is provided with a plurality of assembly holes, the three rods are distributed in a triangular shape, and the top of the node column is provided with two welding grooves used in conjunction with one end of the rod; The rod is fixed to the U-shaped rod support plate by bolts and nuts, and the bolts and nuts are used in conjunction with the assembly holes.

[0007] The present invention is further configured as follows: a long groove is provided on the surface of the U-shaped rod support plate for use in conjunction with the bolts in the bolts and nuts, and two sets of fastening components are also provided inside the U-shaped rod support plate for use in conjunction with the heads of the bolts in the bolts and nuts.

[0008] The present invention is further configured as follows: the fastening assembly includes two fixing plates, the opposite sides of the two fixing plates are penetrated by and threadedly installed with screw rods, the opposite ends of the two screw rods are fixedly installed with knobs, and the opposite ends of the two screw rods are rotatably installed with slide plates through bearings.

[0009] The present invention is further configured as follows: the slide plate is slidably installed inside the U-shaped rod support plate, the two fixing plates are fixedly installed inside the U-shaped rod support plate, and the opposite sides of the two slide plates are used in conjunction with the heads of the bolts in the bolts and nuts.

[0010] The present invention is further configured as follows: an angle groove for use in conjunction with the node column is provided on the top of the node positioning support column, and the node positioning support column is fixedly connected to the operating platform by bolts.

[0011] The present invention is further configured as follows: a placement groove for cooperating with the rod and the U-shaped rod support plate is provided on the top of the rod positioning support column, and the rod positioning support column is fixedly connected to the operating platform by bolts.

[0012] The present invention is further configured as follows: the tops of the node positioning support column and the rod positioning support column are each provided with two positioning holes, positioning pins are inserted into the positioning holes, and the top of the operating platform is provided with a blind hole used in conjunction with the positioning pins.

[0013] The present invention provides a high-precision welding tool for a triangular unit block frame of a block metal truss cover. It has the following beneficial effects: (1) The present invention positions the three rods by means of three U-shaped rod support plates. With the cooperation of three corner support plates and three rod positioning support columns, the three rods are positioned. Meanwhile, three node positioning support columns are used to limit the ends of the three node columns, thereby providing stable and reliable positioning for the welding between the rods and the node columns, and providing effective support for realizing high-precision welding of the triangular unit blocks.

[0014] (2) The present invention provides a guarantee for the stability of the connection between different triangular unit blocks and U-shaped rod support plates through the arrangement of bolts, nuts and fastening components, and at the same time provides a convenient guarantee for the high-precision welding of triangular unit blocks in the segmented metal truss cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a structural schematic diagram of a triangular unit block of the present invention; Figure 3 A top view of the positioning assembly structure of the present invention; Figure 4 It is a schematic diagram of the connection between the node column, the rod, the node positioning support column, the rod positioning support column, the U-shaped rod support plate and the bolt and nut structure of the present invention; Figure 5 It is a schematic diagram of the structure of the operating platform, blind holes, node columns and node positioning support columns of the present invention; Figure 6 It is a schematic diagram of the connection between the U-shaped rod support plate and the fastening assembly structure of the present invention; Figure 7 It is a schematic diagram of the connection between the bolt, nut and slide plate structure of the present invention.

[0016] In the figure: 1. Operating platform; 101. Blind hole; 2. triangular unit block; 201. node column; 202. rod; 203. assembly hole; 204. welding groove; 3. Positioning assembly; 301. Node positioning support column; 302. Rod positioning support column; 303. U-shaped rod support plate; 304. Corner support plate; 305. Bolts and nuts; 306. Long slot; 307. Corner slot; 308. Placement slot; 309. Positioning hole; 3010. Positioning pin; 4. Fastening assembly; 401. Fixing plate; 402. Screw rod; 403. Knob; 404. Slide plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1-7 The embodiment of the present invention provides the following technical solutions: a high-precision welding tool for a triangular unit block skeleton of a divided metal truss cover, comprising an operating platform 1, and a positioning component 3 arranged on the operating platform 1 and used in conjunction with a triangular unit block 2, as shown in the attached Figure 2As shown, the triangular unit block 2 includes three node columns 201 and three rods 202. The surface of the rod 202 is provided with a plurality of assembly holes 203. The three rods 202 are distributed in a triangle. The top of the node column 201 is provided with two welding grooves 204 for use with one end of the rod 202.

[0019] As a preferred solution, in order to achieve high-precision positioning of the triangular unit block 2 so as to facilitate welding and fixing of the rod 202 and the node column 201, the positioning assembly 3 includes three node positioning support columns 301, three rod positioning support columns 302, three U-shaped rod support plates 303 and three corner support plates 304. The three U-shaped rod support plates 303 and the three node positioning support columns 301 are all distributed in a triangular shape, and two adjacent U-shaped rod support plates 303 are rotatably connected by a corner support plate 304. The top of the node positioning support column 301 is provided with an angle groove 307 for use with the node column 201. The node positioning support column 301 is fixedly connected to the operating platform 1 by bolts, and the top of the node positioning support column 301 is provided with two positioning holes 309, a locating pin 3010 is inserted into the interior of the locating hole 309, a blind hole 101 for use with the locating pin 3010 is provided on the top of the operating platform 1, the rod locating support column 302 is arranged at the midpoint of the axis line connecting two adjacent node locating support columns 301, and a placement groove 308 for use with the rod 202 and the U-shaped rod support plate 303 is provided on the top of the rod locating support column 302. The rod locating support column 302 is fixedly connected to the operating platform 1 by bolts, the three node locating support columns 301 and the three rod locating support columns 302 are all fixedly installed on the top of the operating platform 1, and the rod 202 is fixed to the U-shaped rod support plate 303 by bolts and nuts 305, and the bolts and nuts 305 are used in conjunction with the assembly holes 203.

[0020] To further illustrate, the U-shaped rod support plate 303 is designed with channel steel, the length of which does not exceed the length of the rod 202, and the installation interface is consistent with the interface of the rod 202. The U-shaped rod support plate 303 and the corner support plate 304 can be uniformly designed and reused for different types of triangular unit blocks 2.

[0021] As a preferred solution, in order to ensure the adaptive positioning of the U-shaped rod support plate 303 to the rod 202 , a long groove 306 is provided on the surface of the U-shaped rod support plate 303 for use with the bolts in the bolts and nuts 305 .

[0022] As a preferred solution, in order to ensure the stability of the connection between the U-shaped rod support plate 303 and the rod 202, two sets of fastening components 4 are also provided inside the U-shaped rod support plate 303 for use with the heads of the bolts in the bolts and nuts 305. The fastening components 4 include two fixing plates 401, and the two fixing plates 401 are fixedly installed inside the U-shaped rod support plate 303. The opposite sides of the two fixing plates 401 are penetrated and threadedly installed with screw rods 402, and the opposite ends of the two screw rods 402 are fixedly installed with knobs 403. The opposite ends of the two screw rods 402 are rotatably installed with slide plates 404 through bearings. The slide plates 404 are slidably installed inside the U-shaped rod support plate 303, and the opposite sides of the two slide plates 404 are used in cooperation with the heads of the bolts in the bolts and nuts 305.

[0023] Build the model before use. The specific steps include: S1 determines the placement positions of the node positioning support column 301 and the rod positioning support column 302 by using the positions of the node columns 201 and the rods 202 in the three-dimensional model of the triangular unit block 2. The node positioning support column 301 is placed at the positions of the three node columns 201, and the rod positioning support column 302 is placed at the middle position of the three rods 202; S2. Two positioning holes 309 and a first fixing hole are designed on the three node positioning support columns 301, and two second fixing holes are designed on the three rod positioning support columns 302, wherein both the first fixing hole and the second fixing hole are used for bolts to pass through, so as to achieve high-precision positioning with the operating platform 1; S3. In the three-dimensional design software, assemble the triangular unit block 2 with the three node positioning support columns 301 and the three rod positioning support columns 302. The three node positioning support columns 301 and the three rod positioning support columns 302 are replaced by cylindrical models. The assembly position is placed according to the requirements of S1. When assembling the triangular unit block 2, ensure that the upper surface is parallel to the upper surface of the cylindrical model and is higher by a certain distance.

[0024] S4. Use Boolean operation to cut off the part of the cylindrical model that interferes with the triangular unit block 2. The resulting spatial wedge-shaped gap can be used for welding positioning of the rod 202 and the node column 201 in the triangular unit block 2. The cylindrical model after cutting is the three-dimensional model of the positioning support column tooling required for welding the triangular unit block 2. S5. For other types of triangular unit blocks in the segmented metal truss cover, the corresponding high-precision positioning support column welding tooling can repeat steps S1-S4.

[0025] When in use, the three node columns 201 are respectively placed in the corner grooves 307 of the three node positioning support columns 301, and then the bolts in the bolts and nuts 305 are passed through the long grooves 306 from the inside of the U-shaped rod support plate 303, and after passing through the assembly hole 203, the nuts are put on and a preliminary connection is performed, wherein the bolts are placed between the two slides 404, and the rod 202 and the U-shaped rod support plate 303 are placed in the placement grooves 308. During the process, the position of the rod 202 is adjusted so that its two ends are respectively in contact with a welding groove 204 of the two node columns 201, and the knob 403 is turned to drive the screw rod 4 02 is rotated to push the slide plate 404 to move. After the slide plate 404 contacts one side of the bolt in the bolt and nut 305, turn the other knob 403, and the knob 403 drives the screw rod 402 to rotate, which can push the other slide plate 404 to move. After the slide plate 404 contacts the other side of the bolt in the bolt and nut 305, the bolt in the bolt and nut 305 is positioned, and then the nut in the bolt and nut 305 is tightened to complete the fixation of the U-shaped rod support plate 303 and the rod 202. At this time, the rod 202 and the node column 201 remain in a stable state, providing a guarantee for the high-precision welding of the two.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision welding tool for a triangular unit block frame of a divided metal truss cover, comprising an operating platform (1), and a positioning component (3) arranged on the operating platform (1) and used in conjunction with the triangular unit block (2), characterized in that: The positioning assembly (3) comprises three node positioning support columns (301), three rod positioning support columns (302), three U-shaped rod support plates (303) and three corner support plates (304); the three U-shaped rod support plates (303) and the three node positioning support columns (301) are all distributed in a triangular shape, and two adjacent U-shaped rod support plates (303) are rotatably connected via a corner support plate (304); the three node positioning support columns (301) are used in conjunction with the triangular unit block (2); the rod positioning support column (302) is arranged at the midpoint of a line connecting the axes of two adjacent node positioning support columns (301) and is used in conjunction with the U-shaped rod support plate (303); the three node positioning support columns (301) and the three rod positioning support columns (302) are all fixedly mounted on the top of the operating platform (1), and the U-shaped rod support plate (303) is used in conjunction with the triangular unit block (2).

2. According to claim 1, a high-precision welding tool for a triangular unit block frame of a block metal truss cover, characterized in that: The triangular unit block (2) comprises three node columns (201) and three rods (202); a plurality of assembly holes (203) are provided on the surface of the rods (202); the three rods (202) are distributed in a triangular shape; and two welding grooves (204) are provided on the top of the node column (201) for use with one end of the rods (202); The rod (202) is fixed to the U-shaped rod support plate (303) via bolts and nuts (305), and the bolts and nuts (305) are used in conjunction with the assembly holes (203).

3. According to claim 2, a high-precision welding tool for a triangular unit block frame of a segmented metal truss cover is characterized by: The surface of the U-shaped rod support plate (303) is provided with a long groove (306) for use in conjunction with the bolts in the bolt nuts (305), and the interior of the U-shaped rod support plate (303) is also provided with two sets of fastening components (4) for use in conjunction with the heads of the bolts in the bolt nuts (305).

4. According to claim 3, a high-precision welding tool for a triangular unit block frame of a segmented metal truss cover is characterized by: The fastening assembly (4) comprises two fixing plates (401), a screw rod (402) passing through and threadedly mounted on opposite sides of the two fixing plates (401), a knob (403) fixedly mounted on opposite ends of the two screw rods (402), and a slide plate (404) rotatably mounted on opposite ends of the two screw rods (402) via a bearing.

5. According to claim 4, a high-precision welding tool for a triangular unit block frame of a segmented metal truss cover is characterized by: The slide plate (404) is slidably mounted inside the U-shaped rod support plate (303), the two fixing plates (401) are fixedly mounted inside the U-shaped rod support plate (303), and opposite sides of the two slide plates (404) are used in conjunction with the heads of the bolts in the bolt nuts (305).

6. The high-precision welding tool for the triangular unit block frame of a block metal truss cover according to claim 2 is characterized by: An angle groove (307) for use with the node column (201) is provided at the top of the node positioning support column (301), and the node positioning support column (301) is fixedly connected to the operating platform (1) via bolts.

7. The high-precision welding tool for the triangular unit block frame of the block metal truss cover according to claim 6 is characterized by: A placement groove (308) for use with the rod (202) and the U-shaped rod support plate (303) is provided at the top of the rod positioning support column (302), and the rod positioning support column (302) is fixedly connected to the operating platform (1) via bolts.

8. The high-precision welding tool for the triangular unit block frame of a block metal truss cover according to claim 7 is characterized by: The top of the node positioning support column (301) is provided with two positioning holes (309), positioning pins (3010) are inserted into the interior of the positioning holes (309), and the top of the operating platform (1) is provided with a blind hole (101) for use with the positioning pins (3010).

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