Measuring device for surface precision of reflector antenna

Abstract

The invention belongs to the field of antenna processing, and particularly relates to a reflector antenna surface precision measuring device which comprises a workbench and a laser scanning head. A first electric push rod is fixedly connected to the side face of the workbench, a top cover is fixedly connected to the output end of the first electric push rod, a bottom bin is fixedly connected to the position, corresponding to the top cover, of the bottom of the workbench, a negative pressure pipe is fixedly connected to the center of the bottom of the bottom bin, and a plurality of extraction openings are formed in the top end of the negative pressure pipe. A first electric push rod is controlled to drive a top cover to move downwards, the top cover covers the top of a bottom bin to form a relatively sealed space, then a draught fan is started, the air inlet end of the draught fan is connected with an air filter, and the draught fan sucks dust from the bottom of the antenna through a negative pressure pipe so as to suck the dust in the antenna, so that the antenna can be conveniently cleaned; therefore, errors caused by metal chippings and dust generated by processing adhered to the surface can be avoided, and a laser scanning head can conveniently acquire data of the reflecting surface of the antenna.

Description

Technical Field

[0001] The invention relates to the field of antenna processing, in particular to a device for measuring the surface accuracy of a reflector antenna. Background Art

[0002] In the current existing technology, after the reflector antenna is processed, the staff needs to measure the reflective surface of the reflector antenna. They need to ensure the smoothness of the antenna reflective surface to ensure the quality of the antenna. The commonly used methods include: scanning the reflector surface by laser to generate high-density point cloud data, and combining numerical fitting algorithms (such as QR decomposition) to calculate the error.

[0003] However, during use, some dust and debris generated during processing will remain on the reflecting surface of the reflector antenna. These dust and debris adhere to the reflecting surface, thereby affecting the accuracy of laser scanning. Therefore, a device for measuring the surface accuracy of the reflector antenna is proposed to address the above problem. Summary of the Invention

[0004] In order to remedy the deficiencies of the prior art and solve at least one of the technical problems raised in the background art, the present invention provides a device for measuring the surface accuracy of a reflector antenna.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a device for measuring the surface accuracy of a reflective surface antenna described in the present invention comprises a workbench and a laser scanning head; a first electric push rod is fixedly connected to the side of the workbench, an output end of the first electric push rod is fixedly connected to a top cover, a bottom bin is fixedly connected to the corresponding position of the bottom of the workbench and the top cover, a negative pressure tube is fixedly connected to the bottom center position of the bottom of the bottom bin, a plurality of exhaust ports are opened at the top of the negative pressure tube, an exhaust pipe is fixedly connected to the bottom end of the negative pressure tube, an air filter is installed at the end of the exhaust pipe, a fan is installed on the side of the air filter, and the laser head is fixedly connected to the bottom of the workbench. The optical scanning head is located on the inner wall of the top cover. When in use, the negative pressure tube corresponds to the position of the receiver installed at the bottom of the antenna. The negative pressure tube passes through and then controls the first electric push rod to drive the top cover to move down. The top cover is covered on the top of the bottom bin, forming a relatively sealed space. The fan is then started and the air inlet end of the fan is connected to the air filter. It extracts and sucks air from the bottom of the antenna through the negative pressure tube to absorb the dust inside the antenna, which can be easily cleaned. It can also eliminate errors caused by metal debris and dust produced by processing on its surface, making it convenient for the laser scanning head to obtain data on the antenna reflecting surface.

[0006] Preferably, the top of the top cover is fixed with a motor, the output end of the motor is fixed with a rotating shaft, the rotating shaft is rotatably connected to the top of the top cover, the bottom of the rotating shaft is installed with an annular seat, the bottom of the annular seat is fixed with a bracket, the bottom of the bracket is fixed with a scraper. When in use, the top of the top cover is installed with a motor, the output end of the motor is fixed with a rotating shaft, the bottom of the rotating shaft is installed with an annular seat and multiple scrapers for rotation. The scraper is located inside the antenna, so it can scrape off dust on the reflecting surface of the antenna. The scraped dust is sucked into the negative pressure pipe below, which is convenient for cleaning.

[0007] Preferably, a second electric push rod is fixed to the top of the top cover, and a connecting ring is fixed to the output end of the second electric push rod. The connecting ring is sleeved on the annular seat and is rotatably connected to it. The annular seat is sleeved on the rotating shaft, and the annular seat and the rotating shaft are slidingly connected. When in use, the top of the top cover is fixed with a second electric push rod, and the second electric push rod drives the connecting ring and the annular seat to move up and down, thereby driving the scraper to move down, so that the scraper moves down into the interior of the antenna. During scanning, the second electric push rod drives the scraper to move up and pull it out, thereby reducing the impact on the laser scanning data.

[0008] Preferably, a protrusion is provided on the surface of the rotating shaft, and a groove is provided on the inner side wall of the annular seat at a position corresponding to the protrusion, and the protrusion is inserted into the groove and slidably connected thereto.

[0009] Preferably, a plurality of vacuum suction cups are fixedly connected to the bottom of the bottom bin, a vacuum tube is fixedly connected to the end of the vacuum suction cup, a vacuum pump is installed at the bottom of the workbench, and the vacuum tube and the vacuum pump are connected. When in use, a vacuum pump is installed at the bottom of the workbench, and the air outlet end of the vacuum pump is connected to the vacuum suction cup through the vacuum tube. The vacuum pump draws air to form a negative pressure in the vacuum pump, thereby extracting and fixing the antenna, thereby reducing the shaking of the antenna.

[0010] Preferably, a support arm is fixed to the top of the annular seat, and the support arm is located above the bottom bin. A plurality of nozzles are fixed to the support arm, and an air pipe is fixed between the nozzle and the fan, and the air pipe passes through the side wall of the top cover and is fixed thereto. When in use, a support arm is fixed to the top of the annular seat, and a plurality of nozzles are fixed to the support arm. An air pipe is installed between the nozzle and the air outlet end of the fan, and the air pipe transports air to the nozzle, and the compressed air is blown toward the antenna reflecting surface below, so as to facilitate the cleaning of the antenna.

[0011] Preferably, the number of the vacuum suction cups is three, and the three vacuum suction cups are distributed in a ring shape at the bottom of the bottom bin.

[0012] Preferably, a rubber sealing ring is fixed to the bottom of the top cover.

[0013] The present invention is beneficial in that:

[0014] 1. The present invention is provided with a first electric push rod, a top cover, a bottom bin, a negative pressure pipe, an exhaust pipe, an air filter and a fan. When in use, the negative pressure pipe corresponds to the position where the receiver is installed at the bottom of the antenna. The negative pressure pipe passes through, and then the first electric push rod is controlled to drive the top cover to move downward. The top cover covers the top of the bottom bin, forming a relatively sealed space. Thereafter, the fan is started, and the air inlet end of the fan is connected to the air filter. The air extracted by the fan is sucked in from the bottom of the antenna through the negative pressure pipe, thereby absorbing dust inside the antenna, thereby facilitating its cleaning. Furthermore, errors caused by metal debris and dust generated by processing adhering to its surface can be eliminated, making it convenient for the laser scanning head to obtain data on the antenna reflective surface.

[0015] 2. The present invention is equipped with a motor, a rotating shaft, an annular seat and a scraper. When in use, the motor is installed on the top of the top cover, the output end of the motor is fixedly connected to the rotating shaft, and the bottom of the rotating shaft is installed with an annular seat and multiple scrapers for rotation. The scraper is located inside the antenna, so it can scrape off the dust on the reflecting surface of the antenna. The scraped dust is absorbed by the negative pressure pipe below, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 Schematic diagram of the first electric push rod structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the top cover of the present invention;

[0020] Figure 4 It is a schematic diagram of the rotating shaft structure of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the bottom bin of the present invention.

[0022] In the figure: 11. workbench; 12. top cover; 13. first electric push rod; 14. bottom bin; 15. negative pressure pipe; 16. exhaust pipe; 17. air filter; 18. fan; 19. laser scanning head; 21. motor; 22. rotating shaft; 23. bracket; 24. scraper; 31. second electric push rod; 32. connecting ring; 41. protrusion; 42. groove; 51. vacuum pump; 52. vacuum tube; 53. vacuum suction cup; 61. support arm; 62. nozzle; 63. air supply pipe; 7. rubber sealing ring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Specific examples are given below.

[0025] See also Figure 1-5 As shown, a device for measuring the surface accuracy of a reflector antenna includes a workbench 11 and a laser scanning head 19; a first electric push rod 13 is fixedly connected to the side of the workbench 11, an output end of the first electric push rod 13 is fixedly connected to a top cover 12, a bottom bin 14 is fixedly connected to the bottom of the workbench 11 and the corresponding position of the top cover 12, a negative pressure tube 15 is fixedly connected to the bottom center position of the bottom of the bottom bin 14, a plurality of exhaust ports are opened at the top of the negative pressure tube 15, an exhaust pipe 16 is fixedly connected to the bottom end of the negative pressure tube 15, an air filter 17 is installed at the end of the exhaust pipe 16, a fan 18 is installed on the side of the air filter 17, and the laser scanning head 19 is located on the inner side wall of the top cover 12;

[0026] During use, the negative pressure tube 15 corresponds to the position where the receiver is installed at the bottom of the antenna. The negative pressure tube 15 passes through, and then controls the first electric push rod 13 to drive the top cover 12 to move down. The top cover 12 covers the top of the bottom bin 14, forming a relatively sealed space. Then the fan 18 is started, and the air inlet end of the fan 18 is connected to the air filter 17. It extracts and sucks air from the bottom of the antenna through the negative pressure tube 15 to absorb the dust inside the antenna, so that it can be easily cleaned, and then the error caused by the metal debris and dust generated by the processing adhering to its surface can be eliminated, so that the laser scanning head 19 can obtain the data of the antenna reflecting surface.

[0027] Further, such as Figure 1-5As shown, a motor 21 is fixedly connected to the top of the top cover 12, and a rotating shaft 22 is fixedly connected to the output end of the motor 21. The rotating shaft 22 is rotatably connected to the top of the top cover 12. An annular seat is installed at the bottom of the rotating shaft 22. A bracket 23 is fixedly connected to the bottom of the annular seat. A scraper 24 is fixedly connected to the bottom of the bracket 23.

[0028] When in use, a motor 21 is installed on the top of the top cover 12, and a rotating shaft 22 is fixedly connected to the output end of the motor 21. An annular seat and multiple scrapers 24 are installed at the bottom of the rotating shaft 22 for rotation. The scrapers 24 are located inside the antenna, so as to scrape off the dust on the reflecting surface of the antenna. The scraped dust is absorbed by the negative pressure pipe 15 below, which is convenient for cleaning.

[0029] Further, such as Figure 1-5 As shown, a second electric push rod 31 is fixed to the top of the top cover 12, and a connecting ring 32 is fixed to the output end of the second electric push rod 31. The connecting ring 32 is sleeved on the annular seat and rotatably connected thereto. The annular seat is sleeved on the rotating shaft 22, and the annular seat and the rotating shaft 22 are slidably connected. A protrusion 41 is provided on the surface of the rotating shaft 22, and a groove 42 is provided on the inner side wall of the annular seat at a position corresponding to the protrusion 41. The protrusion 41 is inserted into the groove 42 and slidably connected thereto.

[0030] When in use, a second electric push rod 31 is fixed to the top of the top cover 12, and the second electric push rod 31 drives the connecting ring 32 and the annular seat to move up and down, thereby driving the scraper 24 to move down, so that the scraper 24 moves down and enters the interior of the antenna. During scanning, the second electric push rod 31 drives the scraper 24 to move up and pull it out, thereby reducing the impact on the laser scanning data. A protrusion 41 is provided on the surface of the rotating shaft 22, and a groove 42 is provided on the annular seat corresponding to the protrusion 41. The groove 42 cooperates with the protrusion 41 to guide the annular seat and improve stability.

[0031] Further, such as Figure 1-5 As shown, a plurality of vacuum cups 53 are fixedly connected to the bottom of the bottom bin 14, and a vacuum tube 52 is fixedly connected to the end of the vacuum cup 53. A vacuum pump 51 is installed at the bottom of the workbench 11, and the vacuum tube 52 is connected to the vacuum pump 51.

[0032] During use, a vacuum pump 51 is installed at the bottom of the workbench 11. The air outlet of the vacuum pump 51 is connected to a vacuum suction cup 53 through a vacuum tube 52. The vacuum pump 51 draws air into the vacuum pump 51 to form a negative pressure, thereby extracting and fixing the antenna, thereby reducing the shaking of the antenna.

[0033] Further, such as Figure 1-5As shown, a support arm 61 is fixedly connected to the top of the annular seat, and the support arm 61 is located above the bottom bin 14. A plurality of nozzles 62 are fixedly connected to the support arm 61. An air supply pipe 63 is fixedly connected between the nozzle 62 and the blower 18. The air supply pipe 63 passes through the side wall of the top cover 12 and is fixed thereto; three vacuum suction cups 53 are provided, and the three vacuum suction cups 53 are distributed in a ring shape at the bottom of the bottom bin 14; a rubber sealing ring 7 is fixedly connected to the bottom of the top cover 12;

[0034] When in use, a support arm 61 is fixed to the top of the annular seat, and a plurality of nozzles 62 are fixed to the support arm 61. An air supply pipe 63 is installed between the nozzle 62 and the air outlet end of the fan 18. The air supply pipe 63 supplies air to the nozzle 62, and the compressed air is blown toward the antenna reflecting surface below, so as to facilitate the cleaning of the antenna. The rubber sealing ring 7 is fixed to the bottom of the top cover 12, and the rubber sealing ring 7 can improve the sealing effect between the top cover 12 and the workbench 11.

[0035] Working principle: when in use, the negative pressure tube 15 corresponds to the position of the receiver installed at the bottom of the antenna, the negative pressure tube 15 passes through, and then controls the first electric push rod 13 to drive the top cover 12 to move down, and the top cover 12 covers the top of the bottom bin 14, which forms a relatively sealed space, and then starts the fan 18. The air inlet end of the fan 18 is connected to the air filter 17, which extracts and sucks air from the bottom of the antenna through the negative pressure tube 15, so as to absorb the dust inside the antenna, so that it can be easily cleaned, and then the error caused by the metal debris and dust generated by processing on its surface can be eliminated, so that the laser scanning head 19 can obtain the data of the antenna reflection surface; when in use, a motor 21 is installed on the top of the top cover 12, and the output end of the motor 21 is fixedly connected to the rotating shaft 22. The bottom of the rotating shaft 22 is equipped with an annular seat and a plurality of scrapers 24 for rotation. The scraper 24 is located inside the antenna, so as to scrape off the dust on the antenna reflection surface. The scraped dust is sucked by the negative pressure tube 15 below, which is convenient for cleaning;

[0036] When in use, a second electric push rod 31 is fixed to the top of the top cover 12, and the second electric push rod 31 drives the connecting ring 32 and the annular seat to move up and down, thereby driving the scraper 24 to move down, so that the scraper 24 moves down and enters the antenna. During scanning, the second electric push rod 31 drives the scraper 24 to move up and out, thereby reducing the impact on the laser scanning data. A protrusion 41 is provided on the surface of the rotating shaft 22, and a groove 42 is provided on the annular seat corresponding to the protrusion 41. The groove 42 cooperates with the protrusion 41 to guide the annular seat and improve stability. When in use, a vacuum pump 51 is installed at the bottom of the workbench 11, and the air outlet end of the vacuum pump 51 is connected to the vacuum suction cup 53 through the vacuum tube 52. The vacuum pump 51 draws negative pressure into the vacuum pump 51 to extract and fix the antenna, thereby reducing the shaking of the antenna.

[0037] When in use, a support arm 61 is fixed to the top of the annular seat, and a plurality of nozzles 62 are fixed to the support arm 61. An air supply pipe 63 is installed between the nozzle 62 and the air outlet end of the fan 18. The air supply pipe 63 supplies air to the nozzle 62, and the compressed air is blown toward the antenna reflecting surface below, so as to facilitate the cleaning of the antenna. The rubber sealing ring 7 is fixed to the bottom of the top cover 12, and the rubber sealing ring 7 can improve the sealing effect between the top cover 12 and the workbench 11.

[0038] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A device for measuring the surface accuracy of a reflector antenna, comprising a workbench (11) and a laser scanning head (19); characterized in that: A first electric push rod (13) is fixedly connected to the side of the workbench (11), and an output end of the first electric push rod (13) is fixedly connected to a top cover (12). A bottom bin (14) is fixedly connected to the corresponding position of the bottom of the workbench (11) and the top cover (12). A negative pressure pipe (15) is fixedly connected to the bottom center position of the bottom bin (14). A plurality of air exhaust ports are opened at the top of the negative pressure pipe (15). An air exhaust pipe (16) is fixedly connected to the bottom end of the negative pressure pipe (15). An air filter (17) is installed at the end of the air exhaust pipe (16). A fan (18) is installed on the side of the air filter (17). The laser scanning head (19) is located on the inner wall of the top cover (12).

2. The device for measuring the surface accuracy of a reflector antenna according to claim 1, wherein: The top of the top cover (12) is fixedly connected to a motor (21), the output end of the motor (21) is fixedly connected to a rotating shaft (22), the rotating shaft (22) is rotatably connected to the top of the top cover (12), the bottom of the rotating shaft (22) is installed with an annular seat, the bottom of the annular seat is fixedly connected to a bracket (23), and the bottom of the bracket (23) is fixedly connected to a scraper (24).

3. The device for measuring the surface accuracy of a reflector antenna according to claim 2, wherein: A second electric push rod (31) is fixedly connected to the top of the top cover (12), and a connecting ring (32) is fixedly connected to the output end of the second electric push rod (31). The connecting ring (32) is sleeved on the annular seat and rotatably connected thereto. The annular seat is sleeved on the rotating shaft (22), and the annular seat and the rotating shaft (22) are slidably connected.

4. The device for measuring the surface accuracy of a reflector antenna according to claim 3, wherein: A protrusion (41) is provided on the surface of the rotating shaft (22), and a groove (42) is provided on the inner side wall of the annular seat at a position corresponding to the protrusion (41). The protrusion (41) is inserted into the groove (42) and is slidably connected thereto.

5. The device for measuring the surface accuracy of a reflector antenna according to claim 4, characterized in that: A plurality of vacuum suction cups (53) are fixedly connected to the bottom of the bottom bin (14), and a vacuum tube (52) is fixedly connected to the end of the vacuum suction cup (53). A vacuum pump (51) is installed at the bottom of the workbench (11), and the vacuum tube (52) and the vacuum pump (51) are connected.

6. The device for measuring the surface accuracy of a reflector antenna according to claim 5, characterized in that: A support arm (61) is fixedly connected to the top of the annular seat. The support arm (61) is located above the bottom bin (14). A plurality of nozzles (62) are fixedly connected to the support arm (61). An air supply pipe (63) is fixedly connected between the nozzles (62) and the fan (18). The air supply pipe (63) passes through the side wall of the top cover (12) and is fixed thereto.

7. The device for measuring the surface accuracy of a reflector antenna according to claim 6, characterized in that: The number of the vacuum suction cups (53) is three, and the three vacuum suction cups (53) are distributed in a ring shape at the bottom of the bottom bin (14).

8. The device for measuring the surface accuracy of a reflector antenna according to claim 7, wherein: A rubber sealing ring (7) is fixed to the bottom of the top cover (12).

Images