Simple drill jig for drilling antenna housing

Abstract

The simple drill jig comprises a drill jig body, clamping grooves used for clamping the side wall of the antenna housing are formed in the two ends of the drill jig body, and two positioning blocks are arranged on one side of the drill jig body in a sliding mode. The drill jig body is provided with positioning edges which are located on the adjacent sides of the two positioning blocks and can abut against the positioning blocks, and the two positioning blocks and the two positioning edges are symmetrically arranged relative to the center line of an inner cavity of the antenna housing. The utility model has the beneficial effects that a machine tool is not needed for punching, and the precision of a drilling hole site can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna cover manufacturing, in particular to a simple drilling jig used for drilling holes in the antenna cover. Background Art

[0002] The radome is a structural part used to protect the antenna system and prevent the antenna system from being damaged by natural or unnatural factors. It also needs to withstand aerodynamic loads and other loads. Radomes are mostly made of composite materials, shaped like thin-walled shells, with high strength and light weight. In order to better protect the radome, the mouth of the radome needs to be firmly fixed to the antenna base plate. Common fixing methods include: screw fixing, gluing, etc. If screw fixing is used, it involves the problem of drilling holes on the radome. As a thin-walled shell part, the radome has many inconveniences in drilling holes on the machine tool, especially for large-sized radomes. If the hole position error is too large, it will lead to the inability to install.

[0003] Currently, the antenna cover is often punched by shape positioning punching. Since the antenna cover is mainly made of composite materials, its shape manufacturing accuracy is not high, and the wall thickness error and mold flash will affect its shape size. Therefore, the use of shape positioning punching is likely to cause large hole position deviations, and even inconsistent deviations in each batch, resulting in difficulties in the final assembly.

[0004] Therefore, it is necessary to propose a simple drilling jig for drilling holes in the radome, which does not require a machine tool for drilling and can improve the accuracy of the drilling hole positions. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provides a simple drilling jig for drilling holes in a radome, which does not require a machine tool for drilling holes and can improve the accuracy of the drilling hole positions.

[0006] The purpose of the utility model is achieved through the following technical solutions: a simple drilling jig for drilling holes in an antenna cover, comprising a drilling jig body, wherein both ends of the drilling jig body are provided with slots for clamping the side walls of the antenna cover, two positioning blocks are slidably provided on one side of the drilling jig body, and a positioning edge is provided on the drilling jig body, which is located on one side adjacent to the two positioning blocks and can abut against the positioning blocks, and the two positioning blocks and the two positioning edges are symmetrically arranged relative to the center line of the inner cavity of the antenna cover.

[0007] A plurality of drill sleeves are evenly arranged on the drill template body.

[0008] The depth of the slot matches the size from the antenna cover hole to the edge of the mouth.

[0009] Both ends of the drilling template body are provided with guide slide grooves, and positioning blocks are slidably arranged on the guide slide grooves, and the positioning blocks are fixed to the guide slide grooves by screws.

[0010] A plurality of equal-thickness adjusting gaskets are detachably arranged between the positioning block and the positioning edge.

[0011] Before explaining the principle, two key factors must be explained: 1. The assembly of the radome mainly relies on the inner cavity to cover the antenna base plate, and the mouth is flush with the antenna base plate. Therefore, the main factor affecting the assembly effect is: whether the position of the radome mounting hole relative to its inner cavity is accurate; 2. The inner cavity of the radome is integrally formed by the mold core. The inner cavity is smooth and consistent, which is a good positioning reference.

[0012] So the principle is: 1. Use the positioning blocks symmetrically arranged at both ends of the drill jig to close to the side wall of the inner cavity of the antenna cover, and use the inner cavity to determine the left and right positions of the drill jig, so that the drilling position has an accurate correspondence with the inner cavity; 2. The guide groove and the positioning block are precisely matched to prevent the positioning block from swinging up and down; 3. The reference edge is used to ensure the symmetrical arrangement of the positioning blocks; 4. Equal-thickness adjustment gaskets are used to adjust the tightness of the positioning block and the inner cavity. Equal-thickness gaskets are installed on the left and right at the same time to ensure the original symmetry. The gaskets can be made of finished copper sheets with complete specifications and easy to purchase; 5. The drill sleeve is hardened to increase the service life of the drill jig.

[0013] Operation method: 1. Place the positioning block into the guide groove, close to the positioning edge, and tighten with screws; 2. Insert it into the side wall of the antenna cover through the slot, and try to install it with the inner cavity of the antenna cover to test the tightness of the left and right positioning blocks and the inner cavity of the antenna cover; 3. If there is shaking to the left and right, install gaskets of equal thickness between the left and right positioning blocks and the positioning edges at the same time until the drilling jig fits tightly in the inner cavity of the antenna; 5. After the positioning block is adjusted, you can use a hand drill to drill holes in batches without further adjustment.

[0014] The beneficial effects of the utility model are:

[0015] (1) The drilling hole position accuracy can be controlled within ±0.1mm.

[0016] (2) Ensure that the relative position of the drilling hole and the inner cavity is accurate and always complies with the assembly principle of the antenna cover.

[0017] (3) Even if the inner cavity sizes of different batches of antenna covers are different, they can still be centered by adjusting the positioning blocks.

[0018] (4) Simple and lightweight structure with low manufacturing cost.

[0019] (5) It is more convenient for large-sized antenna covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Explosion schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the utility model;

[0022] In the figure, 1. screw, 2. positioning block, 3. equal thickness adjustment gasket, 4. drilling jig body, 4-1. slot, 4-2. guide slot, 4-3. positioning edge, 5. drilling sleeve DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] It is to be noted that the concepts of directions “left”, “right”, “up”, “down”, “front”, “back”, “inside” and “outside” in the following schemes are all relative directions and will not be listed one by one here.

[0025] A simple drilling jig for drilling holes in the radome, reference Figure 1 and Figure 2 , including a drilling jig body 4. A plurality of drill sleeves 5 are evenly arranged on the rear side of the drilling jig body 4. Slots 4-1 are provided at both ends of the lower side of the drilling jig body 4. The depth of the slots 4-1 matches the size of the antenna cover hole to the edge of the mouth, and the slots 4-1 are used to clamp the side wall of the antenna cover.

[0026] The left and right ends of the front side of the drilling template body 4 are provided with guide grooves 4-2. A positioning block 2 matching its size is slidably arranged on the guide groove 4-2. A through hole is provided on the positioning block 2, and a screw hole is provided on the guide groove 4-2. The screw 1 is installed on the screw hole through the through hole, and the positioning block 2 is tightly pressed on the guide groove 4-2, so that it cannot slide.

[0027] A recessed portion is provided on the front side of the drill template body 4, which is located on one side of the guide groove 4-2. The recessed portion is connected to the guide groove 4-2. The inner wall of the recessed portion away from the guide groove 4-2 is a positioning edge 4-3. An equal thickness adjustment gasket 3 is detachably inserted between the guide groove 4-2 and the positioning edge 4-3 to fill the gap between the two.

[0028] The two positioning blocks 2 and the two positioning edges 4 - 3 are symmetrically arranged relative to the center line of the inner cavity of the antenna cover.

[0029] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above description or the technology or knowledge in the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A simple drilling jig for drilling holes in a radome, characterized in that: It includes a drilling jig body, both ends of which are provided with slots for clamping the side walls of the antenna cover, two positioning blocks are slidably provided on one side of the drilling jig body, and the drilling jig body is provided with a positioning edge located on one side adjacent to the two positioning blocks and abutting against the positioning blocks, and the two positioning blocks and the two positioning edges are symmetrically arranged relative to the center line of the inner cavity of the antenna cover.

2. A simple drilling jig for drilling holes in a radome according to claim 1, characterized in that: A plurality of drill sleeves are evenly arranged on the drill template body.

3. A simple drilling jig for drilling holes in a radome according to claim 1, characterized in that: The depth of the slot matches the size from the antenna cover hole to the edge of the mouth.

4. The simple drilling jig for drilling holes in a radome according to claim 1, characterized in that: Both ends of the drilling template body are provided with guide slide grooves, and positioning blocks are slidably arranged on the guide slide grooves. The positioning blocks are fixed to the guide slide grooves by screws.

5. The simple drilling jig for drilling holes in a radome according to claim 1, characterized in that: A plurality of equal-thickness adjusting gaskets are detachably arranged between the positioning block and the positioning edge.

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