Inner surface polishing tool for horn antenna

Abstract

The utility model relates to an inner surface polishing tool for a horn antenna, which comprises a base placed on the ground or a bearing table, a continuous feeding assembly and a lifting supporting mechanism are supported on the base in a partitioned manner, and the lifting supporting mechanism suspends an adjustable magnetic pole assembly above the continuous feeding assembly in a liftable manner; a plurality of rotatable limiting assemblies capable of limiting and placing horn antennas are annularly installed in a machining rotating face limited by the continuous feeding assembly at intervals, and the rotatable limiting assemblies can be matched with the descending adjustable magnetic pole assemblies to limit and clamp the horn antennas in a constructed containing cavity. Therefore, the horn antenna can rotate around a shaft relative to the magnetic pole unit of the adjustable magnetic pole assembly along with the rotatable limiting assembly. The horn antenna inner surface polishing device can conduct continuous inner surface polishing treatment on a large number of horn antennas, improves machining efficiency and yield, and reduces machining time and cost.

Description

Technical Field

[0001] The utility model relates to the technical field of horn antenna surface polishing equipment, in particular to an inner surface polishing tooling for horn antennas. Background Technique

[0002] A horn antenna is an aperture antenna that can obtain high gain and is widely used in various radar antennas. The horn antenna can be used as a feed for a reflector antenna or a lens antenna, a radiation unit of an array antenna, or an independent antenna on a microwave relay station or a satellite. It has the advantages of high gain, low voltage standing wave ratio, wide operating frequency band, large power capacity, light weight, and easy manufacturing, and has been widely used. For horn antennas with more complex structures, commonly used processing methods include electroforming, pure machining, welding of machined parts, 3D printing, etc. The electroforming method for processing high-frequency components has the disadvantages of high processing cost and long processing cycle. The pure machining method is restricted by processing conditions and has a relatively high processing cost. Therefore, the commonly used processing method is to weld and form after machining parts. The horn antenna has structural characteristics such as thin walls, irregular inner surfaces, complex structures, through cavities, weak structural strength, and large differences in sizes between the large and small ends.

[0003] Due to the existence of unconventional structural contours such as irregular shapes, curved surfaces, and variable diameters inside the horn antenna, it is impossible to effectively and highly precisely polish its inner wall surface using conventional mechanical grinding and polishing methods or manual grinding methods, resulting in the roughness of the inner wall surface not meeting the requirement that the inner surface roughness of the horn antenna needs to reach below Ra1.6μm. When performing magnetic abrasive finishing on the inner surface of the horn antenna, a certain amount of non-magnetic abrasive is usually placed in the horn antenna in advance, and then a permanent magnet is set outside the horn antenna to provide magnetic attraction to the non-magnetic abrasive particles in the non-magnetic abrasive. The non-magnetic abrasive particles are affected by the magnetic field force provided by the permanent magnet and are regularly arranged along the magnetic field line direction to form a "magnetic brush" with a certain flexibility, and a certain pressure is generated on the workpiece surface. The movement of the magnetic poles of the permanent magnet drives the "magnetic brush" to produce a rubbing effect on the surface of the horn antenna, thereby realizing the finishing of the surface of the horn antenna. However, the existing horn antenna grinding equipment can only clamp and limit a single horn antenna workpiece. Usually, after the inner surface polishing treatment of a single horn antenna is completed, it is necessary to stop the machine for workpiece disassembly and replacement, which greatly reduces the processing efficiency, increases the processing time cost, and cannot perform continuous polishing processing in the face of the polishing requirements of a large number of horn antenna workpieces, and cannot meet the growing production supply demand. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide an internal surface polishing tooling for horn antennas, which can continuously polish the internal surfaces of a large number of horn antennas, improve the processing efficiency and output, and reduce the processing time cost. It solves the problem that the existing internal surface polishing equipment for horn antennas can only clamp and limit a single horn antenna, cannot continuously feed the horn antenna workpiece during the polishing process, needs to stop the machine to disassemble and replace the workpiece after a single polishing process, prolongs the processing interval time, greatly increases the processing time cost, reduces the comprehensive polishing processing efficiency, and cannot meet the growing output supply demand.

[0005] The technical solution adopted by the present utility model is as follows: An internal surface polishing tooling for horn antennas, including a base placed on the ground or a bearing platform, on which a continuous feeding component and a lifting support mechanism are supported in a partitioned manner. Among them, the lifting support mechanism suspends an adjustable magnetic pole component above the continuous feeding component in a liftable manner; a plurality of rotatable limiting components capable of limiting and placing horn antennas are circumferentially and spacedly installed inside the processing rotation plane defined by the continuous feeding component. The rotatable limiting component can cooperate with the descending adjustable magnetic pole component to clamp and limit the horn antenna in the accommodation chamber it constructs, so that the horn antenna can follow the rotatable limiting component and rotate around its axis relative to the magnetic pole unit of the adjustable magnetic pole component.

[0006] According to a preferred embodiment, the continuous feeding component includes a lifting support column supported on the base, a main shaft rotation driving unit installed at the upper axial end of the lifting support column, and a turntable supported by the main shaft rotation driving unit and capable of rotating around its axis under the drive of the main shaft rotation driving unit. Among them, a plurality of working grooves are circumferentially and spacedly arranged on the upper surface of the turntable.

[0007] According to a preferred embodiment, the rotatable limiting component is installed in the working groove in the same distribution as the working groove.

[0008] According to a preferred embodiment, the rotatable limiting component includes a magnetic conductive housing, a bearing base, a first rotary bearing, a discharge pipe, and a transverse partition. Among them, the magnetic conductive housing is installed on the bearing base, so that the magnetic conductive housing and the bearing base cooperate with each other to define a chamber space for supporting and accommodating the horn antenna; the bearing base is rotatably installed on the inner bottom surface of the working groove through the first rotary bearing; the discharge pipe coaxial with the bearing base penetrates the inner bottom surface of the working groove and is arranged in the disc body of the turntable, and a transverse partition capable of truncating the lumen of the discharge pipe is also horizontally movably arranged in the disc body of the turntable.

[0009] According to a preferred embodiment, an embedding ring groove capable of matching the contour of the small end of the horn antenna is formed on the top surface of the bearing base, and a discharge through hole communicating with the discharge pipe is formed in the central plane defined by the embedding ring groove.

[0010] According to a preferred embodiment, a transmission external gear ring is further sleeved on the outer side wall of the bearing base, and the transmission external gear ring is in transmission connection with a rotary drive motor installed on the inner bottom surface of the working groove through a transmission gear meshing with it, so as to drive the bearing base to perform directional rotation.

[0011] According to a preferred embodiment, a receiving transverse groove for receiving the transverse partition plate and communicating with the lumen of the discharge pipe is formed in the disc body of the turntable, and one side of the receiving transverse groove far away from the discharge pipe penetrates through the side wall of the turntable.

[0012] According to a preferred embodiment, the adjustable magnetic pole assembly further includes a mounting top plate, a lifting mechanism, a connecting platform, a rotating bearing ring, an upper baffle plate and a limiting platform. Among them, the mounting top plate is installed on the lifting support mechanism, the connecting platform is arranged on the lower surface of the mounting top plate, and a plurality of the lifting mechanisms are also circumferentially and spacedly arranged on the mounting top plate; the connecting platform is coaxially and rotatably connected with the upper baffle plate through the rotating bearing ring; the limiting platform is also arranged on the lower surface of the upper baffle plate.

[0013] According to a preferred embodiment, the lifting mechanism includes a rotating screw rod and a guiding slide rod which are parallel to each other, and the rotating screw rod is in transmission connection with a lifting drive motor embedded in the mounting top plate.

[0014] According to a preferred embodiment, a threaded sleeve connected with the rotating screw rod is sleeved on the rotating screw rod, and the threaded sleeve is connected with a sliding piece slidably sleeved on the guiding slide rod, and the magnetic pole unit is installed on the sliding piece.

[0015] The beneficial effects of the present utility model are:

[0016] The continuous feeding component provided in this application can periodically drive a number of horn antennas and rotatable limit components arranged at circumferential intervals on its upper surface to deflect according to requirements, so as to intermittently drive different horn antennas to move to the polishing processing station at time intervals, enabling the adjustable magnetic pole component to magnetically attract the magnetic abrasive grains in different horn antennas and continuously complete the inner surface polishing of multiple horn antennas. The deflection intermittent period is matched with the polishing processing period of a single horn antenna, so that rotation occurs after the processing of a single horn antenna is completed, quickly completing the transfer and replacement of the horn antenna, realizing the continuous polishing of a number of horn antennas, thereby reducing the additional time consumed for shutdown disassembly and assembly, realizing the uninterrupted continuous polishing, greatly improving the efficiency of batch processing, shortening the processing intermittent time, reducing the comprehensive time cost, and meeting the requirements of high-efficiency continuous processing and batch output. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a preferred inner surface polishing tool for a horn antenna proposed by the present utility model;

[0018] Figure 2 It is a partially enlarged structural diagram of part A of a preferred inner surface polishing tool for a horn antenna proposed by the present utility model;

[0019] Figure 3 It is a partial side view of the lifting mechanism of a preferred inner surface polishing tool for a horn antenna proposed by the present utility model;

[0020] Figure 4 It is a bottom view of the adjustable magnetic pole component of a preferred inner surface polishing tool for a horn antenna proposed by the present utility model;

[0021] Figure 5 It is a partially enlarged structural diagram of part B of a preferred inner surface polishing tool for a horn antenna proposed by the present utility model.

[0022] List of Reference Numerals

[0023] 1: Base; 2: Continuous feeding component; 3: Horn antenna; 4: Rotatable limiting component; 5: Lifting support mechanism; 6: Adjustable magnetic pole component; 7: Magnetic abrasive collection pool; 21: Lifting support column; 22: Main shaft rotation drive unit; 23: Turntable; 41: Magnetic conductive housing; 42: Carrying base; 43: First rotary bearing; 44: Discharge pipe; 45: Transverse partition; 51: First lifting rod; 52: Connecting flat plate; 53: Second lifting rod; 54: Load balancing weight; 61: Magnetic pole unit; 62: Installation top plate; 63: Lifting mechanism; 64: Connecting platform; 65: Rotating bearing ring; 66: Upper baffle; 67: Limiting platform; 231: Working groove; 232: Accommodating transverse groove; 233: First magnetic block; 421: Embedded ring groove; 422: Discharge through hole; 423: Transmission external gear ring; 424: Transmission tooth; 425: Rotation drive motor; 451: Second magnetic block; 631: Rotating screw; 632: Guide slide rod; 633: Lifting drive motor; 634: Threaded sleeve; 635: Slide piece. Detailed implementation mode

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] The following will refer to the drawings and describe in detail the technical solutions provided by the present invention through embodiment modes. It should be noted here that the descriptions of these embodiment modes are used to help understand the present invention, but do not constitute a limitation to the present invention. In some examples, since some embodiment modes belong to the prior art or conventional technology, they are not described or are not described in detail.

[0026] In addition, the technical features recorded herein, or the steps in all the methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequences of the methods related to the embodiments provided herein can also be changed. Any sequence in the drawings and embodiments is only used for illustrative purposes and does not imply a requirement to follow a certain sequence, unless it is clearly stated that a certain sequence is required.

[0027] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" and "coupling" mentioned in this application, under reasonable circumstances (without self-contradiction), both include direct and indirect connection (coupling).

[0028] The following is a detailed description in conjunction with the accompanying drawings.

[0029] Embodiment 1

[0030] The present application provides an inner surface polishing tooling for a horn antenna, which includes a base 1, a continuous feeding component 2, a horn antenna 3, a rotatable limiting component 4, a lifting support mechanism 5, an adjustable magnetic pole component 6, and a magnetic abrasive collecting pool 7.

[0031] According to Figures 1-5 A specific implementation manner shown, the base 1 is placed on the ground or a carrier table. The continuous feeding component 2 and the lifting support mechanism 5 are supported in zones on the base 1. A plurality of rotatable limiting components 4 capable of limiting and placing the horn antenna 3 are circumferentially and spacedly installed in the inner ring of the processing rotation surface defined by the continuous feeding component 2. The lifting support mechanism 5 suspends the adjustable magnetic pole component 6 above the continuous feeding component 2 in a liftable manner. The rotatable limiting component 4 can cooperate with the descending adjustable magnetic pole component 6 to limit and clamp the horn antenna 3 in the accommodating chamber formed by it, so that the horn antenna 3 can rotate around its axis relative to the magnetic pole unit 61 of the adjustable magnetic pole component 6 following the rotatable limiting component 4. Thus, the magnetic abrasives stored in the inner cavity of the horn antenna 3 can complete the grinding movement along a spiral path in the manner of adhering to the inner wall surface of the horn antenna 3 under the action of the directional lifting of the magnetic pole unit 61 and the rotational movement of the horn antenna 3 itself, so as to perform grinding processes such as rubbing and cutting on the entire inner surface of the horn antenna 3, complete the micro-removal of the surface material of the inner metal layer of the horn antenna 3, and thus solve the surface quality problems such as micro-cracks, pits, and protrusions existing on the difficult-to-process inner surface. A magnetic abrasive collecting pool 7 is also provided on the base 1 and is arranged in alignment with the lifting support mechanism 5. The continuous feeding component 2 provided in the present application can periodically drive a plurality of horn antennas 3 and rotatable limiting components 4 circumferentially and spacedly placed on its upper surface to perform deflection movements according to requirements, thereby intermittently driving different horn antennas 3 to move to the polishing processing station at time intervals, realizing the magnetic traction of the magnetic abrasives in different horn antennas 3 by the adjustable magnetic pole component 6 and continuously completing the inner surface polishing processing of a plurality of horn antennas 3. The deflection intermittent period is matched with the polishing processing period of a single horn antenna 3, so as to rotate and quickly complete the transfer and replacement of the horn antenna 3 after the processing of a single horn antenna 3 is completed, so as to realize the continuous polishing processing of a plurality of horn antennas 3, thereby reducing the extra time consumed by shutdown disassembly and installation, realizing the uninterruptedness of continuous polishing processing, greatly improving the efficiency of batch processing, shortening the processing intermittent time, reducing the comprehensive time cost, and meeting the requirements of high-efficiency continuous processing and batch output.

[0032] Preferably, the continuous feeding component 2 includes a lifting support column 21 supported on the base 1, a main shaft rotation driving unit 22 installed at the axial upper end of the lifting support column 21, and a turntable 23 supported by the main shaft rotation driving unit 22 and capable of rotating around its axis under the drive of the main shaft rotation driving unit 22. Preferably, a plurality of working grooves 231 are circumferentially and spaced apart on the upper surface of the turntable 23. Preferably, a receiving transverse groove 232 for receiving the transverse partition 45 and communicating with the lumen of the discharge pipe 44 is formed in the disc body of the turntable 23. Specifically, one side of the receiving transverse groove 232 away from the discharge pipe 44 penetrates through the side wall of the turntable 23, so that one end of the transverse partition 45 extends to the outside of the disc body of the turntable 23, facilitating the controlled lateral movement of the transverse partition 45 to block or conduct the lumen of the discharge pipe 44. Preferably, the receiving transverse groove 232 includes a first plate cavity for receiving the plate body of the transverse partition 45 and a second lumen for receiving the through rod of the transverse partition 45. Further preferably, a first magnetic block 233 is provided at the front end of the groove cavity of the receiving transverse groove 232 communicating with the lumen of the discharge pipe 44, and a second magnetic block 451 is also embedded at the insertion front end of the transverse partition 45, so as to define the horizontal insertion state of the transverse partition 45 blocking the lumen of the discharge pipe 44 through the magnetic connection between the first magnetic block 233 and the second magnetic block 451, ensuring the stability of the working position of the transverse partition 45. The lifting support column 21 provided in this application can change the working height of the turntable 23. The main shaft rotation driving unit 22 provided in this application uses a deflection motor, so that it can periodically drive the turntable 23 to perform deflection movement according to requirements, thereby intermittently driving different horn antennas 3 placed in the turntable 23 to move to the polishing processing station at time intervals, and realizing the magnetic traction of the magnetic abrasive grains in different horn antennas 3 by the adjustable magnetic pole assembly 6 to continuously complete the internal surface polishing processing of multiple horn antennas 3. The deflection intermittent period is matched with the polishing processing period of a single horn antenna 3, so as to rotate and quickly complete the transfer and replacement of the horn antenna 3 after the processing of a single horn antenna 3 is completed, so as to realize the continuous polishing processing of several horn antennas 3.

[0033] Preferably, the rotatable limiting component 4 is installed in the working groove 231 in the same distribution as the working groove 231, so that the rotatable limiting component 4 and the working groove 231 cooperate to define an annular cavity for accommodating the magnetic pole unit 61 of the adjustable magnetic pole component 6. Preferably, the rotatable limiting component 4 includes a magnetic conductive housing 41, a bearing base 42, a first rotary bearing 43, a discharge pipe 44 and a transverse partition 45. Preferably, the magnetic conductive housing 41 is installed on the bearing base 42, so that the magnetic conductive housing 41 and the bearing base 42 cooperate with each other to define a chamber space for supporting and accommodating the horn antenna 3. Preferably, the bearing base 42 is rotatably installed on the inner bottom surface of the working groove 231 through the first rotary bearing 43. Preferably, the discharge pipe 44 coaxial with the bearing base 42 penetrates through the inner bottom surface of the working groove 231 and is arranged on the disc body of the turntable 23. Further preferably, a transverse partition 45 capable of cutting off the lumen of the discharge pipe 44 is also horizontally movably arranged in the disc body of the turntable 23. The magnetic conductive housing 41 provided in the present application can shape and wrap the horn antenna 3 in a thin-walled state without blocking the magnetic field generated between the magnetic poles, so that the magnetic field generated by the magnetic poles can effectively act on the magnetic abrasive grains in the horn antenna 3 and drive the magnetic abrasive grains to move synchronously therewith. While the magnetic conductive housing 41 can maintain the morphological stability of the horn antenna 3 during rotation, it can prevent the magnetic abrasive grains from being excessively squeezed under the action of magnetic force, resulting in deformation of the horn antenna 3, so as to ensure that the horn antenna 3 does not deform during the polishing process and obtain high-quality polishing. The bearing base 42 provided in the present application can drive the horn antenna 3 to rotate around the axis, so that the magnetic abrasive grains in the horn antenna 3 can be effectively attached to the inner wall surface of the horn antenna 3 under the action of centrifugal force. In addition, the rotation of the horn antenna 3 following the bearing base 42 makes the magnetic pole unit 61 moving vertically up and down move in a spiral manner relative to the horn antenna 3, so that the magnetic abrasive grains following the movement of the magnetic pole unit 61 can effectively traverse the entire inner wall surface of the horn antenna 3 in a spiral movement manner, thereby realizing effective and sufficient polishing processing of the entire inner wall surface of the horn antenna 3. The discharge pipe 44 provided in the present application can discharge the magnetic abrasive grains in cooperation with the discharge pipe 44 after the magnetic abrasive grain polishing treatment, so as to facilitate the disassembly and assembly of the horn antenna 3.

[0034] Preferably, an embedding ring groove 421 that can match the contour of the small end of the horn antenna 3 is formed on the top surface of the bearing base 42. Further preferably, a discharge through hole 422 communicating with the discharge pipe 44 is formed in the central plane defined by the embedding ring groove 421. Preferably, the diameter of the discharge pipe 44 is larger than the aperture of the discharge through hole 422, so that the magnetic abrasive grains can more accurately flow into the discharge pipe 44 from the discharge through hole 422 for effective external discharge. Further preferably, the upper end of the discharge pipe 44 extends axially above the disk body of the turntable 23, so as to be effectively docked with the discharge through hole 422, fill the connection gap between the turntable 23 and the bearing base 42, and the discharge pipe 44 is placed directly below the discharge through hole 422 in a manner of micro-gap and without abutting contact, so as to effectively receive and accommodate the magnetic abrasive grains, avoid leakage of the magnetic abrasive grains from the gap, and ensure that the discharge through hole 422 can rotate relative to the discharge pipe 44. Preferably, a transmission external gear ring 423 is also sleeved on the outer side wall of the bearing base 42. Preferably, the transmission external gear ring 423 is in transmission connection with a rotary drive motor 425 installed on the inner bottom surface of the working groove 231 through a transmission tooth 424 meshing with it to drive the bearing base 42 to rotate directionally. Preferably, a plurality of rotary drive motors 425 driving the same transmission external gear ring 423 are simultaneously arranged in a partitioned manner on the outer side of the bearing base 42 to improve the rotation speed and stability in a manner of jointly driving by multiple power units.

[0035] Preferably, the lifting support mechanism 5 includes a first lifting rod 51, a connecting flat plate 52, a second lifting rod 53 and a load balancing block 54. Preferably, the first lifting rod 51 is supported on the base 1 and is located on one side of the turntable 23. Preferably, a connecting flat plate 52 is arranged at the upper end of the first lifting rod 51 in the axial direction. Preferably, the second lifting rods 53 are spaced and supported on the plate surface of the connecting flat plate 52 above the turntable 23, and the lower end of the second lifting rod 53 away from the connecting flat plate 52 is connected to the adjustable magnetic pole assembly 6. Further preferably, a load balancing block 54 is also arranged on one side of the connecting flat plate 52 away from the second lifting rod 53. The first lifting rod 51 and the second lifting rod 53 provided in this application can cooperate with each other to adjust the suspension height of the adjustable magnetic pole assembly 6, so that the adjustable magnetic pole assembly 6 can cooperate with the rotatable limit assembly 4 according to requirements to define the processing station of the horn antenna 3, and at the same time can construct a variable regional magnetic field outside the rotatable limit assembly 4, so as to effectively drive the magnetic abrasive grains in the horn antenna 3 to move in a spiral line and effectively polish the inner wall of the horn antenna 3. The connecting flat plate 52 provided in this application can be provided with the second lifting rod 53 and the load balancing block 54 on both sides respectively to ensure the balance of the rod body of the first lifting rod 51 and avoid tipping due to unbalanced support force.

[0036] Preferably, the adjustable magnetic pole assembly 6 further includes a magnetic pole unit 61, a mounting top plate 62, a lifting mechanism 63, a connecting platform 64, a rotating bearing ring 65, an upper baffle 66, and a limiting platform 67. Preferably, the mounting top plate 62 is mounted on the lifting support mechanism 5. Preferably, a connecting platform 64 is provided on the lower surface of the mounting top plate 62, and a plurality of lifting mechanisms 63 are also circumferentially and spacedly arranged on the mounting top plate 62. Preferably, the connecting platform 64 is coaxially and rotatably connected to the upper baffle 66 through the rotating bearing ring 65. Preferably, a limiting platform 67 is further provided on the lower surface of the upper baffle 66. Preferably, the limiting platform 67 is embedded in the magnetic conductive housing 41 in a manner that it can fit with the opening contour of the magnetic conductive housing 41, so as to cooperate with the magnetic conductive housing 41 to define the rotation station of the horn antenna 3. The magnetic pole unit 61 provided in this application can perform a vertical translation under the drive of the lifting mechanism 63 to adjust its working height, so that it can perform a helical movement relative to the rotatable limiting component 4 that rotates, thereby ensuring that the magnetic abrasive grains driven by the magnetic field it constructs can traverse the entire surface of the horn antenna 3. The limiting platform 67 provided in this application can be embedded in the magnetic conductive housing 41 and effectively abut against the upper end surface of the horn antenna 3 in the axial direction, so as to cooperate to maintain the stability of the horn antenna 3 in the magnetic conductive housing 41. The upper baffle 66 provided in this application is adjustably covered on the upper end of the magnetic conductive housing 41, so as to effectively block the upper end opening of the magnetic conductive housing 41 in cooperation with the limiting platform 67, to prevent the magnetic abrasive grains from flying out of the inside of the horn antenna 3 when the magnetic conductive housing 41 rotates. The rotating bearing ring 65 provided in this application enables the upper baffle 66 and the limiting platform 67 to rotate relative to the connecting platform 64 according to the magnetic conductive housing 41, so as to achieve the effectiveness of the block while ensuring that the magnetic pole unit 61 connected to the lifting mechanism 63 surrounding the connecting platform 64 only needs to perform a lifting movement to achieve a helical movement relative to the magnetic conductive housing 41.

[0037] Preferably, the lifting mechanism 63 includes a rotating screw 631 and a guiding slide bar 632 that are parallel to each other. Preferably, the rotating screw 631 is in transmission connection with a lifting drive motor 633 embedded in the mounting top plate 62. Preferably, a threaded sleeve 634 connected thereto is sleeved on the rotating screw 631. Further preferably, the threaded sleeve 634 is connected to a sliding piece 635 slidably sleeved on the guiding slide bar 632. Preferably, a magnetic pole unit 61 is installed on the sliding piece 635. Thus, when the rotating screw 631 rotates, the threaded sleeve 634 can vertically lift under the guiding and limiting of the sliding piece 635, and then drive the sliding piece 635 and the magnetic pole unit 61 to vertically lift synchronously, so that the magnetic abrasive grains are tractioned by two adjacent magnetic pole units 61 with different magnetic poles to lift synchronously. Preferably, among the multiple magnetic pole units 61 distributed in the same way as the lifting mechanism 63, two adjacent magnetic pole units 61 have different magnetic poles, so that a magnetic field with an arc passing through the inner cavity of the horn antenna 3 is formed between two adjacent magnetic pole units 61, so that while driving the magnetic abrasive grains to effectively adhere to the inner wall of the horn antenna 3, they can also move synchronously with the magnetic pole unit 61. Further preferably, the multiple magnetic pole units 61 perform exactly the same lifting movement. When the lifting drive motor 633 provided in the present application drives the rotating screw 631 to rotate, the threaded sleeve 634 can only vertically lift under the drive of the rotating screw 631 due to the guiding and limiting of the sliding piece 635 and the guiding slide bar 632, thereby driving the magnetic pole unit 61 on the sliding piece 635 to lift controllably. The lifting drive motor 633 adopted in the present application is a reciprocating forward and reverse motor, so as to realize the reciprocating lifting movement of the magnetic pole unit 61.

[0038] The working principle of the present application is as follows:

[0039] When performing polishing, first place the horn antenna 3 into the magnetic conductive housing 41, such that the small section of the horn antenna 3 is snap-fitted into the fitting ring groove 421. Then, pour a certain amount of magnetic abrasive grains into the inner cavity of the horn antenna 3. Start the spindle rotation drive unit 22 to rotate the turntable 23, such that the magnetic conductive housing 41 is positioned directly below the adjustable magnetic pole assembly 6. Control the lowering of the lifting support mechanism 5 to snap the limiting platform 67 into the magnetic conductive housing 41, thereby cooperatively abutting and limiting the relative position of the horn antenna 3 in the magnetic conductive housing 41 with the limiting platform 67, the magnetic conductive housing 41, and the bearing base 42. At the same time, the upper baffle 66 that can rotate synchronously with the magnetic conductive housing 41 covers and presses on the upper port surface of the magnetic conductive housing 41, and multiple groups of magnetic pole units 61 arranged at circumferential intervals and the lifting mechanism 63 are inserted into the annular cavity defined by the rotatable limiting assembly 4 and the working groove 231 in cooperation, thereby positioning the liftable working position of the magnetic pole unit 61 outside the magnetic conductive housing 41, such that a magnetic field is formed between two adjacent magnetic pole units 61, and thereby controlling the magnetic abrasive grains to abut against the inner wall surface of the horn antenna 3 under the action of the magnetic field force. Secondly, synchronously start the rotation drive motor 425 to drive the bearing base 42, the magnetic conductive housing 41, and the horn antenna 3 to rotate, such that the magnetic pole unit 61 that undergoes continuous lifting movement during this process completes a relative movement along a helical path with respect to the rotating horn antenna 3, and further drives the magnetic abrasive grains to move along a helix synchronously to effectively traverse the entire inner wall surface and complete effective polishing. After the polishing is completed, the rotation drive motor 425 stops working. The adjustable magnetic pole assembly 6 rises under the traction of the lifting support mechanism 5 and moves out of the annular cavity defined by the rotatable limiting assembly 4 and the working groove 231 in cooperation. The spindle rotation drive unit 22 deflects again to drive the next magnetic conductive housing 41 and the horn antenna 3 to be polished placed therein to move to directly below the adjustable magnetic pole assembly 6, and then repeat the above process steps again to complete the processing of the horn antenna 3, thereby realizing continuous processing of a plurality of horn antennas 3 through the intermittent deflection of the turntable 23, reducing the additional time consumed for shutdown disassembly and assembly, realizing the uninterruptedness of continuous polishing, greatly improving the efficiency of batch processing, and reducing the comprehensive time cost.

[0040] The present utility model is not limited to the above optional embodiments. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they all fall within the protection scope of the present utility model. Those skilled in the art should understand that the description and drawings of the present utility model are illustrative and do not constitute a limitation on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional manner and should not be understood as being necessarily provided. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A horn antenna inner surface polishing tool, comprising a base (1) placed on the ground or a supporting platform, characterized in that: A continuous feeding assembly (2) and a lifting support mechanism (5) are supported in sections on the base (1), wherein the lifting support mechanism (5) suspends an adjustable magnetic pole assembly (6) above the continuous feeding assembly (2) in a liftable manner; A plurality of rotatable limiting components (4) capable of limiting the placement of the horn antenna (3) are installed at intervals in the annular direction within the processing rotating surface defined by the continuous feeding component (2). The rotatable limiting component (4) can cooperate with the descending adjustable magnetic pole component (6) to limit and clamp the horn antenna (3) in the accommodating chamber constructed thereby, so that the horn antenna (3) can follow the rotatable limiting component (4) to rotate around the axis relative to the magnetic pole unit (61) of the adjustable magnetic pole component (6).

2. The inner surface polishing tool for the horn antenna according to claim 1, characterized in that: The continuous feeding assembly (2) comprises a lifting support column (21) supported on the base (1), a main shaft rotation drive unit (22) installed at the axial upper end of the lifting support column (21), and a turntable (23) supported by the main shaft rotation drive unit (22) and capable of rotating around its axis under the drive of the main shaft rotation drive unit (22), wherein: A plurality of working grooves (231) are provided in an annular manner at intervals on the upper surface of the rotating disk (23).

3. The inner surface polishing tool for the horn antenna according to claim 2, characterized in that: The rotatable limiting assembly (4) is installed in the working groove (231) in the same distribution as the working groove (231).

4. The inner surface polishing tool for the horn antenna according to claim 3, characterized in that: The rotatable limiting assembly (4) comprises a magnetically conductive housing (41), a bearing base (42), a first rotating bearing (43), a discharge pipe (44) and a transverse partition (45), wherein: The magnetic conductive shell (41) is mounted on the bearing base (42), so that the magnetic conductive shell (41) and the bearing base (42) cooperate with each other to define a chamber space that supports and accommodates the horn antenna (3); The bearing base (42) is rotatably mounted on the inner bottom surface of the working groove (231) via the first rotary bearing (43); The discharge pipe (44) coaxially arranged with the supporting base (42) passes through the inner bottom surface of the working groove (231) and is arranged on the disk body of the turntable (23), and the transverse partition (45) capable of cutting off the tube cavity of the discharge pipe (44) is also arranged in a transversely movable manner in the disk body of the turntable (23).

5. The inner surface polishing tool for the horn antenna according to claim 4, characterized in that: An embedded annular groove (421) that can match the small end profile of the horn antenna (3) is provided on the top surface of the supporting base (42), and a discharge through hole (422) that is connected to the discharge pipe (44) is provided in the center plane defined by the embedded annular groove (421).

6. The inner surface polishing tool for the horn antenna according to claim 5, characterized in that: A transmission outer gear ring (423) is sleeved on the outer side wall of the bearing base (42). The transmission outer gear ring (423) is connected to a rotation drive motor (425) installed on the inner bottom surface of the working groove (231) through the transmission teeth (424) meshing therewith, so as to drive the bearing base (42) to rotate in a directional manner.

7. The inner surface polishing tool for the horn antenna according to claim 6, characterized in that: A accommodating transverse groove (232) for accommodating the transverse partition (45) and communicating with the tube cavity of the discharge pipe (44) is provided on the body of the turntable (23), and the accommodating transverse groove (232) penetrates the side wall of the turntable (23) on the side away from the discharge pipe (44).

8. The inner surface polishing tool for the horn antenna according to claim 7, characterized in that: The adjustable magnetic pole assembly (6) further comprises a mounting top plate (62), a lifting mechanism (63), a connecting platform (64), a rotating bearing ring (65), an upper baffle (66) and a limiting platform (67), wherein: The mounting top plate (62) is mounted on the lifting support mechanism (5), the connecting platform (64) is arranged on the lower surface of the mounting top plate (62), and a plurality of lifting mechanisms (63) are arranged annularly and spaced apart on the mounting top plate (62); The connecting platform (64) is rotatably coaxially connected to the upper baffle (66) via the rotating bearing ring (65); The lower surface of the upper baffle plate (66) is also provided with the limiting platform (67).

9. The inner surface polishing tool for the horn antenna according to claim 8, characterized in that: The lifting mechanism (63) comprises a rotating screw (631) and a guide slide bar (632) which are parallel to each other. The rotating screw rod (631) is in driving connection with a lifting drive motor (633) embedded in the mounting top plate (62).

10. The inner surface polishing tool for the horn antenna according to claim 9, characterized in that: A threaded sleeve (634) connected to the rotating screw (631) is sleeved thereon, and the threaded sleeve (634) is connected to a sliding plate (635) slidably sleeved on the guide sliding rod (632), and the magnetic pole unit (61) is mounted on the sliding plate (635).

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