Antenna horn cavity fixing tool

Abstract

This utility model relates to a fixture for fixing an antenna horn cavity, including a worktable and a fixing mold. A fixing base is fixed on the worktable, and the top surface of the fixing base has a vertically downward extending insertion hole. Multiple fixing molds of different sizes are provided, and each fixing mold has a mounting seat fixed to its bottom. Each mounting seat has a mounting rod at its lower end that can be inserted into the insertion hole. A holding mechanism is provided inside the fixing base to detachably and securely hold the mounting rod in the insertion hole. This utility model, by providing mounting seats adapted to the fixing base at the bottom of different types of fixing molds, allows different fixing molds to share the same mounting structure, and each fixing mold is easy to disassemble and replace. It eliminates the need to install multiple fixing molds simultaneously on the worktable, reducing space occupation on the worktable and lowering costs.

Description

Technical Field

[0001] This utility model relates to the field of fixing fixture technology, and in particular to a fixing fixture for an antenna horn cavity. Background Technology

[0002] A horn antenna is a special type of antenna, typically used in high-frequency or microwave communication systems. It consists of a gradually expanding metal waveguide, shaped like a horn, hence its name. This design effectively guides electromagnetic waves from the high-density region inside the waveguide to the low-density region in free space, thus achieving efficient radiation.

[0003] During the manufacturing process of antenna horns, it is necessary to use fixtures to fix them in place to ensure stability during processing. Existing fixtures typically involve mounting a fixed mold on a workbench, clamping the antenna horn onto the fixed mold, and using the fixed mold to position and fix it within the antenna horn cavity.

[0004] Existing fixtures for fixing antenna horns are usually of a fixed model. One model of fixture can only be used to fix the antenna horn of the corresponding model. Different models of antenna horns can only be processed by adding multiple fixtures of different models to the worktable. The joint installation of multiple fixtures on the worktable not only increases the cost, but also occupies a lot of space on the worktable. Utility Model Content

[0005] The purpose of this invention is to provide a fixing fixture for an antenna horn cavity with a replaceable fixed mold, which effectively solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] An antenna horn cavity fixing fixture includes a worktable and a fixing mold. A fixing base is fixed on the worktable. The top surface of the fixing base is provided with a vertically downward extending insertion hole. Multiple fixing molds are provided, each with a different model and size. A mounting seat is fixed to the bottom of each fixing mold. The lower end of each mounting seat is provided with an insertion rod that can be matched and inserted into the insertion hole. A holding mechanism is provided inside the fixing base. The holding mechanism is used to detachably hold and fasten the insertion rod in the insertion hole.

[0008] Therefore, by setting a mounting base that matches the fixed base at the bottom of different models of fixed molds, different fixed molds can share the same installation structure. The insertion rod is inserted into the insertion hole, and the clamping mechanism clamps and locks the insertion rod in the insertion hole, thus realizing the installation of the fixed mold. By operating the clamping mechanism to release the clamping of the insertion rod, the insertion rod can be removed from the insertion hole, thus realizing the disassembly of the fixed mold. This facilitates the disassembly and replacement of fixed molds, eliminates the need to install multiple fixed molds on the worktable at the same time, reduces the space occupied on the worktable, and lowers the cost.

[0009] Furthermore, the holding mechanism includes an annular seat, a locking ball, a connecting rod, an inclined extrusion block, an extrusion head, and a drive mechanism. The fixed base has an annular cavity arranged around the insertion hole. Four through holes, each communicating with the insertion hole, are evenly distributed on the inner side wall of the annular cavity. A locking ball is slidably installed in each through hole. A connecting rod is fixed on each locking ball. An extrusion head is fixed to the end of each connecting rod. An annular seat is rotatably installed on the bottom wall of the annular cavity. Four inclined extrusion blocks are evenly distributed on the inner edge wall of the annular seat. Each inclined extrusion block and the extrusion head are in one-to-one contact and engagement. The drive mechanism is located in the annular cavity and extends to the outside of the fixed base for driving the annular seat to rotate and adjust. The outer wall of the insertion rod is provided with an annular arc groove for the locking ball to match and engage.

[0010] Furthermore, the drive mechanism includes a worm and a worm wheel. The worm is rotatably mounted in the annular cavity, with one end extending through to the outside of the fixed base and equipped with a torsion handle. The worm wheel is fixedly fitted on the outer wall of the annular seat and meshes with the worm.

[0011] Furthermore, a blocking component is fixed on the side of the extrusion head to prevent the ball from being over-feeded into the insertion hole, which would cause the ball, connecting rod, and extrusion head to fall out of the through hole. When the ball retracts into the annular cavity to the limit position, the extrusion head abuts against the inner edge wall of the annular seat.

[0012] Furthermore, a positioning rod extending vertically upward is provided on the bottom wall of the insertion hole, and a positioning hole is provided on the end face of the insertion rod for the positioning rod to be inserted.

[0013] Furthermore, positioning blocks are evenly distributed on the top of the fixed base, and positioning grooves are evenly distributed on the end face of the mounting base, so that the positioning blocks can be matched and mounted into the positioning grooves one by one.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] This invention provides a mounting base that fits the fixed base at the bottom of different types of fixed molds, allowing different fixed molds to share the same installation structure. The insert rod is inserted into the insertion hole, and a locking mechanism secures and locks the insert rod within the insertion hole, thus installing the fixed mold. By operating the locking mechanism to release the locking of the insert rod, the insert rod can be removed from the insertion hole, enabling the disassembly of the fixed mold. This facilitates the disassembly and replacement of fixed molds, eliminating the need to install multiple fixed molds simultaneously on the workbench, reducing space occupation on the workbench, and lowering costs.

[0016] This invention utilizes the unidirectional transmission effect of worm gear and worm wheel to achieve a self-locking effect on the ring seat. When not being adjusted, it can prevent the ring seat and extrusion head from rotating arbitrarily, thus avoiding loosening of the ball and ensuring the firmness of the fixed mold installation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed base structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the card holder structure in this utility model;

[0020] Figure 4 This is one of the partial structural cross-sectional schematic diagrams of this utility model;

[0021] Figure 5 This is the second schematic diagram of a partial structural cross-section of this utility model.

[0022] In the diagram: 1. Workbench; 2. Fixed base; 21. Insertion hole; 22. Positioning rod; 23. Positioning block; 3. Fixed mold; 4. Mounting seat; 41. Insertion rod; 411. Annular groove; 412. Positioning hole; 413. Positioning slot; 5. Holding mechanism; 501. Annular cavity; 502. Through hole; 51. Annular seat; 52. Ball clamp; 53. Connecting rod; 54. Inclined extrusion block; 55. Extrusion head; 6. Drive mechanism; 61. Worm gear; 62. Worm wheel; 63. Torque handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides an antenna horn cavity fixing fixture, including a workbench 1 and a fixing mold 3. A fixing base 2 is fixed on the workbench 1. The top surface of the fixing base 2 is provided with a vertically downward extending insertion hole 21. Multiple fixing molds 3 are provided, each with different models and sizes. Each fixing mold 3 has a locking seat 4 fixed at its bottom. Each locking seat 4 has an insertion rod 41 at its lower end that can be matched and inserted into the insertion hole 21. The fixing base 2 is provided with a holding mechanism 5, which is used to detachably and securely fasten the insertion rod 41 in the insertion hole 21.

[0025] By setting mounting bases 4 that are compatible with the fixed base 2 at the bottom of different models of fixed molds 3, different fixed molds 3 can share the same installation structure. Inserting the insertion rod 41 into the insertion hole 21, the clamping mechanism 5 clamps and locks the insertion rod 41 in the insertion hole 21 to realize the installation of the fixed mold 3. By operating the clamping mechanism 5 to release the clamping of the insertion rod 41, the insertion rod 41 can be removed from the insertion hole 21 to realize the disassembly of the fixed mold 3. This makes it convenient to disassemble and replace the fixed mold 3 without having to install multiple fixed molds 3 on the worktable 1 at the same time, reducing the space occupied on the worktable 1 and reducing cost investment.

[0026] Specifically, the holding mechanism 5 includes an annular seat 51, a ball 52, a connecting rod 53, an inclined extrusion block 54, an extrusion head 55, and a drive mechanism 6. The fixed base 2 has an annular cavity 501 arranged around the insertion hole 21. The inner side wall of the annular cavity 501 has four through holes 502 that are all through the insertion hole 21. A ball 52 is slidably installed in each through hole 502. A connecting rod 53 is fixed on each ball 52. An extrusion head 55 is fixed to the end of each connecting rod 53. The annular seat 51 is rotatably installed on the bottom wall of the annular cavity 501. Four inclined extrusion blocks 54 are evenly distributed on the inner edge wall of the annular seat 51. Each inclined extrusion block 54 and the extrusion head 55 are in one-to-one contact and cooperation. The drive mechanism 6 is located in the annular cavity 501 and extends to the outside of the fixed base 2. It is used to drive the annular seat 51 to rotate and adjust. The outer wall of the insertion rod 41 is provided with an annular arc groove 411 for the ball 52 to be matched and inserted.

[0027] The drive mechanism 6 includes a worm 61 and a worm wheel 62. The worm 61 is rotatably mounted in the annular cavity 501, and one end extends through to the outside of the fixed base 2 and is equipped with a torsion handle 63. The worm wheel 62 is fixedly fitted on the outer wall of the annular base 51 and meshes with the worm 61.

[0028] By pinching the torsion handle 63 and turning the worm gear 61 forward, the rotating worm gear 61 engages with and drives the worm wheel 62, which in turn drives the annular seat 51 to rotate. This, in turn, drives each inclined extrusion block 54 to rotate. The rotating inclined extrusion block 54, together with the extrusion head 55, pushes the retaining ball 52 to gradually feed into the insertion hole 21, and finally fits into the annular arc groove 411 on the side of the insertion rod 41, thus securing the insertion rod 41 and installing the fixed mold 3. When disassembling, simply turn the worm gear 61 in the opposite direction, causing the annular seat 51 to rotate in reverse, which in turn causes the inclined extrusion block 54 to gradually separate from the extrusion head 55, giving the retaining ball 52 the ability to retract. Pull the fixed mold 3 upward, and squeeze the retaining ball 52 back in the annular arc groove 411, so that the retaining ball 52 can be released from the annular arc groove 411, thus removing the retaining of the insertion rod 41 and disassembling the fixed mold 3.

[0029] By utilizing the unidirectional transmission effect of the worm gear 61 and worm wheel 62, the annular seat 51 can be self-locked. When not being adjusted, it can prevent the annular seat 51 and the extrusion head 55 from rotating randomly, which could cause the ball 52 to become loose, thus ensuring the firmness of the fixed mold 3 installation.

[0030] Specifically, a blocking element (not shown in the figure) is fixed on the side of the extrusion head 55 to prevent the ball 52 from being over-feeded into the insertion hole 21, which would cause the ball 52, connecting rod 53 and extrusion head 55 to fall out of the through hole 502. When the ball 52 retracts into the annular cavity 501 to the limit position, the extrusion head 55 abuts against the inner edge wall of the annular seat 51, which can prevent the ball 52, connecting rod 53 and extrusion head 55 from retracting excessively and falling out of the through hole 502.

[0031] Specifically, a vertically upward extending positioning rod 22 is provided on the inner bottom wall of the insertion hole 21, and a positioning hole 412 is provided on the end face of the insertion rod 41 for the positioning rod 22 to be inserted. The positioning rod 22 is inserted into the positioning hole 412 to achieve a positioning effect, ensuring that the insertion rod 41 can be centered in the insertion hole 21, thereby ensuring that the holding degree of the ball 52 is consistent when it is inserted into the annular groove 411.

[0032] Specifically, positioning blocks 23 are evenly distributed on the top of the fixed base 2, and positioning grooves 413 are evenly distributed on the end face of the mounting base 4. The positioning blocks 23 can be matched and mounted into the positioning grooves 413 one by one. By matching and mounting the positioning blocks 23 into the positioning grooves 413, the positioning effect is achieved, preventing the mounting base 4 and the fixed mold 3 from having the ability to rotate relative to the fixed base 2, thereby ensuring the stability of the antenna speaker.

[0033] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A fixture for fixing an antenna horn cavity, comprising a worktable (1) and a fixing mold (3), characterized in that: The workbench (1) is fixed with a fixed base (2), and the top surface of the fixed base (2) is provided with a vertically downward extending insertion hole (21); The fixed mold (3) is provided in multiple sizes and models. Each fixed mold (3) has a mounting base (4) fixed at its bottom. Each mounting base (4) has a mounting rod (41) at its lower end that can be matched and inserted into the mounting hole (21). The fixed base (2) is provided with a clamping mechanism (5), which is used to detachably clamp and fasten the insertion rod (41) in the insertion hole (21).

2. The antenna horn cavity fixing fixture according to claim 1, characterized in that: The clamping mechanism (5) includes an annular seat (51), a clamping ball (52), a connecting rod (53), an inclined extrusion block (54), an extrusion head (55), and a driving mechanism (6); The fixed base (2) has an annular cavity (501) arranged around the insertion hole (21), and four through holes (502) that are all connected to the insertion hole (21) are evenly distributed on the inner side wall of the annular cavity (501). Each of the through holes (502) is slidably installed with a ball (52), each of the balls (52) is fixed with a connecting rod (53), and each of the connecting rods (53) is fixed with a pressing head (55) at its end. The annular seat (51) is rotatably mounted on the bottom wall of the annular cavity (501). Four inclined extrusion blocks (54) are evenly distributed on the inner edge wall of the annular seat (51). Each inclined extrusion block (54) is in one-to-one contact with the extrusion head (55). The driving mechanism (6) is located inside the annular cavity (501) and extends to the outside of the fixed base (2) for driving the annular base (51) to rotate and adjust. The outer wall of the insert rod (41) is provided with an annular groove (411) for the locking ball (52) to be matched and locked in.

3. The antenna horn cavity fixing fixture according to claim 2, characterized in that: The drive mechanism (6) includes a worm (61) and a worm wheel (62); The worm gear (61) is rotatably mounted in the annular cavity (501), and one end extends through to the outside of the fixed base (2) and is equipped with a torsion handle (63). The worm gear (62) is fixedly mounted on the outer wall of the annular seat (51) and meshes with the worm (61).

4. The antenna horn cavity fixing fixture according to claim 2, characterized in that: The side of the extrusion head (55) is fixed with a blocking member to prevent the ball (52) from being over-feeded into the insertion hole (21), which would cause the ball (52), connecting rod (53) and extrusion head (55) to fall out of the through hole (502). When the ball (52) retracts into the annular cavity (501) to its limit position, the extrusion head (55) abuts against the inner edge wall of the annular seat (51).

5. The antenna horn cavity fixing fixture according to claim 1, characterized in that: The bottom wall of the insertion hole (21) is provided with a vertically upward extending positioning rod (22), and the end face of the insertion rod (41) is provided with a positioning hole (412) for the positioning rod (22) to be inserted.

6. The antenna horn cavity fixing fixture according to claim 1, characterized in that: The fixed base (2) has positioning blocks (23) evenly distributed on its top end, and the mounting base (4) has positioning grooves (413) evenly distributed on its end face. The positioning blocks (23) can be matched and mounted into the positioning grooves (413) one by one.

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