Surface coating polishing device for curved-surface thin-wall antenna window cover plate

Abstract

The invention relates to a curved-surface thin-wall antenna window cover plate surface coating polishing device which is characterized by comprising a polishing execution assembly (1), an operation control box (2), a dust collection system (3), a sealed observation window (4), a profile rack (5) and a control electric cabinet box (6). The polishing execution assembly (1), the operation control box (2), the dust collection system (3) and the control electric cabinet box (6) are all installed in the profile rack (5). A sealed observation window (4) is arranged on the upper part of the profile rack (5), and the working space is isolated from the outside by the sealed observation window (4); an operator realizes man-machine interaction through the operation control box (2) embedded in the sealed observation window; compared with the prior art, the device has very good effects, for example, the working efficiency is improved, the product grinding quality is improved, the product damage is reduced, and the safety of workers in the production process is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field related to polishing and grinding, and particularly relates to a surface coating grinding device for a curved thin-walled antenna window cover plate. Background Art

[0002] For the purpose of communication transmission, antenna windows are usually opened on the surface of an aircraft, and a curved thin-walled antenna window cover plate is installed on the antenna window. The antenna window cover plate is used to ensure good aerodynamic shape of the aircraft while enabling radio wave transmission. A protective coating generally needs to be covered on the surface of the antenna window cover plate. During the construction process of the protective coating, polishing and grinding are required to ensure that the protective coating meets the design requirements. Since there is no suitable automatic grinding and polishing equipment at present, manual grinding can only be used, resulting in many problems:

[0003] 1. When the area of the coating to be ground is large or the number of products is large, manual grinding is slow and inefficient.

[0004] 2. Manual grinding cannot ensure uniform feeding of the ground coating and completely depends on the grinding experience of the operator.

[0005] 3. Since the surface of the ground antenna window cover plate is not entirely coated, and wave-transparent ceramics are embedded in some local areas, manual grinding is very likely to cause deep scratches in some local areas of the ceramic surface.

[0006] 4. During the manual grinding process, it is very easy to grind out of tolerance, and the coating thickness needs to be repaired multiple times. Compared with the integrally formed coating, there is a risk of decreased bonding performance in the area of the post-applied coating. Summary of the Invention

[0007] The purpose of the present invention is to solve the above problems and designs a surface coating grinding device for a curved thin-walled antenna window cover plate.

[0008] A surface coating grinding device for a curved thin-walled antenna window cover plate, characterized by comprising: a grinding execution component 1, an operation control box 2, a dust suction system 3, a sealed observation window 4, a profile frame 5, and a control electrical cabinet 6; the grinding execution component 1, the operation control box 2, the dust suction system 3, and the control electrical cabinet 6 are all installed in the profile frame 5; a sealed observation window 4 is provided on the upper part of the profile frame 5, and the working space is isolated from the outside by the sealed observation window 4; the operator realizes human-computer interaction through the operation control box 2 embedded in the sealed observation window; the grinding execution component 1 is inside the upper part of the profile frame 5, and the dust suction system 3 is installed in the profile frame 5 below the grinding execution component 1; the dust generated during the working process is collected through the dust collection pipeline of the dust suction system 3; all control instructions input to the operation control box 2 are processed by the control electrical cabinet 6 and then control the grinding execution component 1 to perform grinding work;

[0009] The grinding execution component 1 includes a sand belt drive motor 201, a spindle drive motor 202, a plum blossom coupling 203, an antenna window cover plate 204, a dust collection hood 205, a mounting base plate 206, a dust collection pipe 207, a spindle support frame 208, a bearing pressing block 209, a sand belt rotating component 210, a feed drive motor 211, and a roller component 30. Among them, a spindle support frame 208 is installed on the front side of the mounting base plate 206 to support the roller component 30. The rear end of the roller component 30 is connected to the spindle drive motor 202 through a plum blossom coupling 203. The bearing pressing block 209 is installed on the two side spindle support frames 208 to fixedly support the roller component 30. The mounting base plate 206 is also provided with a feed drive motor 211 and a sand belt drive motor 201, and a sand belt rotating component 210 is arranged above the feed drive motor 211.

[0010] The roller component 30 includes a spindle bearing 301, a planetary reducer 302, a rotating cylinder 303, a fixed threaded hole 304, and a clearance window 305. Among them, the planetary reducer 302 is connected to the spindle bearing 301, and the rotating cylinder 303 is sleeved on the front end of the spindle bearing 301. The rotating cylinder 303 has a fixed threaded hole 304 and a clearance window 305 for fixing the antenna window cover plate 204. An integrated hood 205 is installed below the rotating cylinder 303 to collect the dust generated during the grinding process and enter the dust suction system 3 through the dust collection pipe 207. The antenna window cover plate 204 is installed on the rotating cylinder 303.

[0011] After the spindle drive motor 202 is connected to the planetary reducer 302 and decelerated, the rotational power is transmitted to the rotating cylinder 303 through the plum blossom coupling 203.

[0012] The sand belt rotation and feed component 210 includes a dust collection box 401, a tensioning wheel bracket 402, a torsion spring 403, a sand belt drive wheel 404, a linear module 405, a tensioning wheel 406, a guide wheel 407, a grinding support wheel 408, a sliding plate 409, a vibrating plate 410, and a seamless sand belt 501. The linear module 405 is installed on the rear side of the mounting base plate 206. The sliding plate 409 above the linear module 405 is driven to move back and forth by the linear module 405 to realize the feed of the sand belt rotation and feed component 210. The grinding support wheel 408 at the front end of the seamless sand belt 501 provides support during the sand belt grinding process. The guide wheel 407 at the upper end of the seamless sand belt 501 can correct the left and right positions of the sand belt. The sand belt drive wheel 404 at the rear end of the seamless sand belt 501 is connected to the sand belt drive motor 201 to provide power for the rotation of the sand belt. During the grinding process, the sand belt will be attached with grinding debris. When the grinding debris passes below the vibrating plate 410, the vibrating plate 410 in direct contact with the seamless sand belt 501 vibrates at a high frequency to shake off the grinding debris from the seamless sand belt 501 and fall into the dust collection box 401, so that the seamless sand belt 501 maintains good grinding and polishing ability.

[0013] In the sand belt rotation and feeding assembly 210, the tensioning wheel 406 is fixed to the tensioning bracket 402, and the torsion spring 403 provides a clockwise tensioning force to the tensioning bracket 402 and the tensioning wheel 406, thereby realizing the automatic tensioning of the seamless sand belt 501. When it is necessary to replace the new seamless sand belt 501, press down the quick-release wrench 502 to make the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless sand belt 501 can be easily removed from the left side. After loading the new seamless sand belt 501 in place, release the quick-release wrench 502, and the newly loaded seamless sand belt 501 will be automatically tensioned immediately.

[0014] Furthermore, the grinding device further includes a detachable rolling cylinder structure: After loosening and removing the fixing bolts and pins of the bearing pressing block 9, and removing the set screw on the rotating shaft side of the rolling cylinder 303 of the plum coupling 203, the original rolling cylinder 303 can be removed from the main shaft support frame 208. Select a suitable single-row rotating cylinder 601 or double-row rolling cylinder 602, remove the two main shaft bearings 301 from the original rolling cylinder 303 and install them on the new rolling cylinder. Then place the new rolling cylinder on the main shaft support frame 208 in the original direction, install and tighten the set screw on the rotating shaft side of the rolling cylinder 303 of the plum coupling 203, and install the bearing pressing block 9 and the corresponding fixing bolts and pins back to their original positions to complete the replacement of the rolling cylinder 303.

[0015] Still further, the disassembly method of the seamless sand belt 501: When it is necessary to replace the new seamless sand belt 501, press down the quick-release wrench 502 to make the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless sand belt 501 can be easily removed from the left side. After loading the new seamless sand belt 501 in place, release the quick-release wrench 502. The tensioning wheel 406 fixed to the tensioning bracket 402, under the push of the clockwise torsional force of the torsion spring 403, the seamless sand belt 501 can be automatically tensioned, thus completing the replacement of the seamless sand belt 501. The replaced sandpaper is a silicon carbide 400# annular sand belt, and the recommended sand belt mesh number range is 120 - 600#.

[0016] Still further, the described grinding parameter setting method: In this embodiment, the rolling cylinder rotates continuously counterclockwise at a speed of 30 r / min, and the recommended setting range is 20 - 120 r / min; the seamless sand belt rotates continuously counterclockwise at a speed of 2 r / min, and the recommended setting range is 1 - 10 r / min; the working feed rate is 0.06 mm / min, and the recommended setting range is 0.04 - 0.24 mm / min, and the idle stroke feed rate is 5 mm / s, and the recommended setting range is 2 - 12 mm / s.

[0017] Furthermore, through the method for removing grinding debris attached to the seamless abrasive belt: when the grinding debris passes under the vibrating plate, the vibrating plate in direct contact with the seamless abrasive belt vibrates at a high frequency, shaking off the grinding debris from the seamless abrasive belt and into the dust collection box, enabling the seamless abrasive belt to maintain good grinding and polishing capabilities.

[0018] Furthermore, the grinding working mode is as follows: first, the rotating cylinder rotates continuously clockwise, and the seamless abrasive belt 501 rotates continuously counterclockwise; then, the abrasive belt rotating assembly advances at an idle stroke feed rate of 5 mm / s forward. When there is still 0.1 mm left from the antenna window cover plate, the abrasive belt rotating assembly advances at a working feed rate of 0.06 mm / min forward.

[0019] Furthermore, the rotating cylinder 303 is a single-row rotating cylinder 601 or a double-row rotating cylinder 602, and different styles of antenna window cover plates 204 are installed accordingly.

[0020] Beneficial effects

[0021] The present invention has very good effects compared with the existing technology, such as improving work efficiency, improving the quality of product grinding, reducing product damage, and ensuring the safety of workers during the production process. Description of the drawings

[0022] Figure 1 is a schematic diagram of the structural composition of the present invention;

[0023] Figure 2 is a schematic diagram of the composition of the grinding execution component of the present invention;

[0024] Figure 3 is a schematic diagram of the rotating cylinder assembly 30 of the present invention;

[0025] Figure 4 is a schematic diagram of the composition of the abrasive belt rotation and feed component of the present invention;

[0026] Figure 5 is a schematic diagram of the abrasive belt replacement of the present invention;

[0027] Figure 6 is a schematic diagram of the rotating cylinder type of the present invention;

[0028] (a) Schematic diagram of the structure of the single-row rotating cylinder 601 of the present invention;

[0029] (b) Schematic diagram of the structure of the double-row rotating cylinder 602 of the present invention.

[0030] Among them, 1 is the grinding execution component, 2 is the operation control box, 3 is the dust collection system, 4 is the sealed observation window, 5 is the profile frame, 6 is the control electric cabinet box, 30 is the roller assembly, 201 is the sand belt drive motor, 202 is the main shaft drive motor, 203 is the plum coupling, 204 is the antenna window cover plate, 205 is the dust collection hood, 206 is the mounting base plate, 207 is the dust collection pipe, 208 is the main shaft support frame, 209 is the bearing pressing block, 210 is the sand belt rotating assembly, 211 is the feed drive motor, 301 is the main shaft bearing, 302 is the planetary reducer, 303 is the rotating roller, 304 is the fixed threaded hole, 305 is the clearance window, 401 is the dust collection box, 402 is the tensioning wheel bracket, 403 is the torsion spring, 404 is the sand belt drive wheel, 405 is the linear module, 406 is the tensioning wheel, 407 is the guide wheel, 408 is the grinding support wheel, 409 is the sliding plate, 410 is the vibration plate, 501 is the seamless sand belt, 502 is the quick-release wrench, 601 is the single-row rotating roller, 602 is the double-row rotating roller; Detailed implementation method

[0031] A surface coating grinding device for a curved thin-walled antenna window cover plate, comprising:

[0032] The grinding execution component 1, the operation control box 2, the dust collection system 3, the sealed observation window 4, the profile frame 5, and the control electric cabinet box 6;

[0033] The grinding execution component 1 is installed inside the profile frame 5, and the working space is isolated from the outside by the sealed observation window 4. The operator realizes human-machine interaction through the operation control box 2 embedded in the sealed observation window. The dust collection system 3 is installed below the grinding execution component, and collects the dust generated during the working process through the dust collection pipeline. All control instructions are processed by the control electric cabinet box and then control the grinding execution component to perform the grinding work; The operator only needs to replace the rotating roller and the seamless sand belt according to needs, install the antenna window cover plate on the grinding station, set the grinding parameters, and then the device of the present invention will automatically complete the coating grinding work of 1 to 20 antenna window cover plates. After the grinding is completed, take the antenna window cover plate off the station, and the grinding and polishing process is completed.

[0034] The grinding execution component is the main functional execution mechanism. The front side of the mounting base plate 206 is equipped with a main shaft support frame 208 for supporting the rotating roller 303; the bearing pressing block 209 is installed on both sides of the main shaft support frame 208 for fixing and supporting the rotating roller 303; the rotating roller 303 has fixed threaded holes 304 and clearance windows 305 for fixing the antenna window cover plate 204; an integrated hood 205 is installed below the rotating roller 303, which can collect the dust generated during the grinding process and enter the dust collection system through the dust collection pipe 207; As Figure 3 shown in the rotating roller drive assembly realizes the rotation of the rotating roller; As Figure 4The shown abrasive belt rotation and feeding assembly realizes the rotation and feeding of the abrasive belt.

[0035] In the driving and constitution of the rotating cylinder, the rotating cylinder 303 is supported and fixed to the main body through the main shaft bearing 301. After the main shaft driving motor 202 is connected to the planetary reducer 302 for speed reduction, the rotational power is transmitted to the rotating cylinder 303 through the plum coupling 203; the rotating cylinder can be replaced with a single-row rotating cylinder 601 or a double-row rotating cylinder 602 for installing antenna window cover plates 204 of different styles.

[0036] In the abrasive belt rotation and feeding assembly, the linear module 405 is installed at the rear side of the mounting base plate 206. The sliding plate above the linear module 405 can be driven by the linear module to move back and forth to realize the feeding of the abrasive belt assembly; the grinding support wheel 408 at the front end of the seamless abrasive belt 501 provides support during the abrasive belt grinding process; the guide wheel 407 at the upper end of the seamless abrasive belt 501 can correct the left and right positions of the abrasive belt; the abrasive belt driving wheel 404 at the rear end of the seamless abrasive belt 501 is connected to the abrasive belt driving motor 201 to provide power for the rotation of the abrasive belt; during the grinding process, grinding debris will adhere to the abrasive belt. When the grinding debris passes under the vibration plate 410, the vibration plate 410 in direct contact with the seamless abrasive belt 501 vibrates at a high frequency to shake off the grinding debris from the seamless abrasive belt 501 and fall into the dust collection box 401, so that the seamless abrasive belt 501 maintains good grinding and polishing ability.

[0037] In the abrasive belt rotation and feeding assembly, the tensioning wheel 406 is fixed to the tensioning bracket 402, and the torsion spring 403 provides a clockwise tensioning force to the tensioning bracket 402 and the tensioning wheel 406, thereby realizing the automatic tensioning of the seamless abrasive belt 501; as Figure 5 shown, when it is necessary to replace the new seamless abrasive belt 501, press down the quick-release wrench 502 to make the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless abrasive belt 501 can be easily removed from the left side. After loading the new seamless abrasive belt 501 in place, release the quick-release wrench 502, and the newly loaded seamless abrasive belt 501 will be automatically tensioned immediately.

[0038] A surface coating grinding device for a curved thin-walled antenna window cover plate, characterized by comprising:

[0039] Abrasive execution assembly 1, operation control box 2, dust collection system 3, sealed observation window 4, profile frame 5, control electric cabinet 6;

[0040] The polishing execution component 1 is installed inside the profile rack 5, and the working space is isolated from the outside world by the sealed observation window 4. The operator realizes human-machine interaction through the operation control box 2 embedded in the sealed observation window. The dust suction system 3 is installed below the polishing execution component and collects the dust generated during the working process through the dust collection pipeline. All control instructions are processed by the control electric cabinet box and then control the polishing execution component to perform the polishing work. The operator only needs to replace the rotating drum and the seamless abrasive belt as needed, install the antenna window cover plate on the polishing station, and set the polishing parameters. Then, the device of the present invention will automatically complete the coating polishing work of 1 to 20 antenna window cover plates. After the polishing is completed, the antenna window cover plate is removed from the station, and the polishing process is completed.

[0041] The polishing execution component is the main functional execution mechanism. A spindle support frame 208 is installed on the front side of the mounting base plate 206 to support the rotating drum 303. Bearing pressing blocks 209 are installed on the two spindle support frames 208 to fixedly support the rotating drum 303. The rotating drum 303 has fixed threaded holes 304 and clearance windows 305 for fixing the antenna window cover plate 204. An integrated cover 205 is installed below the rotating drum 303 to collect the dust generated during the polishing process and enter the dust suction system through the dust collection pipe 207. As Figure 3 shown by the rotating drum drive component, the rotation of the rotating drum is realized; as Figure 4 shown by the abrasive belt rotation and feeding component, the rotation and feeding of the abrasive belt are realized.

[0042] In the driving and composition of the rotating drum, the rotating drum 303 is supported and fixed to the main body through the spindle bearing 301. After the spindle drive motor 202 is connected to the planetary reducer 302 for speed reduction, the rotational power is transmitted to the rotating drum 303 through the plum coupling 203. The rotating drum can be replaced with a single-row rotating drum 601 or a double-row rotating drum 602 for installing different styles of antenna window cover plates 204.

[0043] In the abrasive belt rotation and feeding component, the linear module 405 is installed on the rear side of the mounting base plate 206. The sliding plate above the linear module 405 can be driven to move forward and backward by the linear module to realize the feeding of the abrasive belt component. The polishing support wheel 408 at the front end of the seamless abrasive belt 501 provides support during the abrasive belt polishing process. The guide wheel 407 at the upper end of the seamless abrasive belt 501 can correct the left and right positions of the abrasive belt. The abrasive belt drive wheel 404 at the rear end of the seamless abrasive belt 501 is connected to the abrasive belt drive motor 201 to provide power for the rotation of the abrasive belt. During the polishing process, the abrasive belt will adhere to polishing debris. When the polishing debris passes below the vibrating plate 410, the vibrating plate 410 in direct contact with the seamless abrasive belt 501 vibrates at a high frequency to shake off the polishing debris from the seamless abrasive belt 501 and fall into the dust collection box 401, so that the seamless abrasive belt 501 maintains good polishing ability.

[0044] In the sand belt rotation and feeding assembly, the tensioning wheel 406 is fixed to the tensioning bracket 402, and the torsion spring 403 provides a clockwise tensioning force to the tensioning bracket 402 and the tensioning wheel 406, thereby realizing the automatic tensioning of the seamless sand belt 501; as Figure 5 shown, when it is necessary to replace the new seamless sand belt 501, press down the quick-release wrench 502 to make the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless sand belt 501 can be easily removed from the left side. After loading the new seamless sand belt 501 in place, release the quick-release wrench 502, and the newly loaded seamless sand belt 501 will be automatically tensioned immediately.

[0045] The grinding device further includes a detachable rolling cylinder structure: After loosening and removing the fixing bolts and pins of the bearing pressing block 9, remove the set screw on the rotating shaft side of the rolling cylinder 303 of the plum coupling 203, and then the original rolling cylinder 303 can be removed from the main shaft support frame 208. Select a suitable single-row rotary cylinder 601 or double-row rolling cylinder 602, remove the two main shaft bearings 301 from the original rolling cylinder 303 and install them on the new rolling cylinder. Then place the new rolling cylinder on the main shaft support frame 208 in the original direction, install and tighten the set screw on the rotating shaft side of the rolling cylinder 303 of the plum coupling 203, and install the bearing pressing block 9 and the corresponding fixing bolts and pins back to their original positions to complete the replacement of the rolling cylinder 303.

[0046] The disassembly method of the seamless sand belt: When it is necessary to replace the new seamless sand belt 501, press down the quick-release wrench 502 to make the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless sand belt 501 can be easily removed from the left side. After loading the new seamless sand belt 501 in place, release the quick-release wrench 502. The tensioning wheel 406 fixed to the tensioning bracket 402, under the push of the clockwise torsion force of the torsion spring 403, the seamless sand belt 501 can be automatically tensioned, thus completing the replacement of the seamless sand belt 501; the replaced sandpaper is a silicon carbide 400# ring-shaped sand belt, and the recommended sand belt mesh number range is 120 - 600#.

[0047] The described grinding parameter setting method: In this embodiment, the rolling cylinder rotates continuously counterclockwise at a speed of 30 r / min, and the recommended setting range is 20 - 120 r / min; the seamless sand belt rotates continuously counterclockwise at a speed of 2 r / min, and the recommended setting range is 1 - 10 r / min; the working feed rate is 0.06 mm / min, and the recommended setting range is 0.04 - 0.24 mm / min, and the idle stroke feed rate is 5 mm / s, and the recommended setting range is 2 - 12 mm / s.

[0048] Method for removing grinding debris attached to the seamless abrasive belt: When the grinding debris passes under the vibrating plate, the vibrating plate in direct contact with the seamless abrasive belt vibrates at a high frequency, vibrating the grinding debris off the seamless abrasive belt and into the dust collection box, so that the seamless abrasive belt maintains good grinding and polishing ability.

[0049] The grinding working mode is as follows: First, the rotating drum rotates continuously clockwise, and the seamless abrasive belt rotates continuously counterclockwise; then the abrasive belt rotating assembly feeds forward at an empty stroke rate of 5 mm / s. When there is still 0.1 mm left from the antenna window cover plate, the abrasive belt rotating assembly feeds forward at a working feed rate of 0.06 mm / min.

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Generally, the components of the embodiments of the present invention described in the accompanying drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the protection scope of the present invention, but only represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0052] To make the purpose, technical solutions and advantages of the embodiments of the present invention more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments in the embodiments of the present invention.

[0053] The grinding device includes: as Figure 1 shown, the grinding execution component 1 installed in the profile frame 5 is integrally separated from the outside by the sealed observation window 4. During work, the dust suction system 3 installed below the grinding execution component will be activated, collect the dust generated during the work process through the dust collection pipe 7, and ensure that the working space is always in a negative pressure state to effectively prevent the dust from leaking out; all operation instructions of the operator are realized through the operation control box 2 embedded in the sealed observation window for human-machine interaction, and the control instructions are processed by the control electric cabinet 6 and then control the grinding execution component 1 to perform the grinding work.

[0054] The working method and principle of the present invention for a surface coating grinding device for a curved thin-walled antenna window cover plate are as follows:

[0055] Before polishing, make adaptive adjustments according to the size of the antenna window cover plate 204 to be polished and polished: Loosen and remove the fixing bolts and pins of the bearing pressure block 9, remove the top screw of the rotating shaft on one side of the rotating cylinder 303 of the jaw coupling 203, and then remove the original rotating cylinder 303 from the main shaft support frame 208. Select a suitable single-row rotating cylinder 601 or double-row rotating cylinder 602, remove the two main shaft bearings 301 from the original rotating cylinder 303, install them on the new rotating cylinder, and then place the new rotating cylinder on the main shaft support frame 208 in the original direction. Install and tighten the top screw of the rotating shaft on one side of the rotating cylinder 303 of the jaw coupling 203, and install the bearing pressure block 9 and the corresponding fixing bolts and pins back to their original positions to complete the replacement of the rotating cylinder 303; As Figure 5 shown, when it is necessary to replace the new seamless abrasive belt 501, press down the quick-release wrench 502 so that the tensioning bracket 402 and the tensioning wheel 406 rotate counterclockwise against the tensioning force of the torsion spring 403. After losing the tensioning force, the old seamless abrasive belt 501 can be easily removed from the left side, and the new seamless abrasive belt 501 can be loaded in place. Then, release the quick-release wrench 502. The tensioning wheel 406 fixed on the tensioning bracket 402 can automatically tighten the seamless abrasive belt 501 under the pushing force of the clockwise torsion force of the torsion spring 403, thereby completing the replacement of the seamless abrasive belt 501; The replaced sandpaper is a silicon carbide 400# ring-shaped abrasive belt, and the recommended abrasive belt mesh number range is 120-600#.

[0056] Next, it is necessary to install the antenna window cover plate 204 to be polished: The operator opens the sealed observation window 4 on the side close to the rotating cylinder 303, fixes the antenna window cover plate 204 to be polished on the rotating cylinder 303 through the fixed threaded hole 304, and controls the rotating cylinder 303 to rotate 1 / 5-1 / 8 of a circle on the operation control box 2 and install a new antenna window cover plate 204 to be polished (the specific rotation angle can be adaptively modified according to the installation quantity of the antenna window cover plate 204) until all the fixed threaded holes 304 of one full circle of the rotating cylinder 303 are fixed with the polished antenna window cover plate 204, and then close the sealed observation window 4 on the side close to the rotating cylinder 303.

[0057] The operator sets the polishing parameters on the operation control box 2: In this embodiment, the rotating cylinder rotates continuously counterclockwise at a speed of 30 r / min, and the recommended setting range is 20-120 r / min; The seamless abrasive belt 501 rotates continuously counterclockwise at a speed of 2 r / min, and the recommended setting range is 1-10 r / min; The working feed rate is 0.06 mm / min, and the recommended setting range is 0.04-0.24 mm / min. The idle stroke feed rate is 5 mm / s, and the recommended setting range is 2-12 mm / s;

[0058] After setting the parameters in this example, click the start button, and the device starts to run:

[0059] 1) Device reset: Driven by the feed drive motor 211, the linear module 405 drives the abrasive belt rotating assembly 210 to move to the sensor origin through the sliding plate 409. The main shaft drive motor 202 drives the rotating drum 303 to rotate counterclockwise to the sensor origin.

[0060] 2) The rotating drum 303 starts to rotate continuously counterclockwise driven by the main shaft drive motor 202 at a speed of 30 r / min. The seamless abrasive belt 501 starts to rotate continuously counterclockwise driven by the abrasive belt drive motor 201 at a speed of 2 r / min. Driven by the feed drive motor 211, the abrasive belt rotating assembly 210 moves forward at an idle stroke feed rate of 5 mm / s. When there is still 0.1 mm left from the antenna window cover plate 204, the drive motor 211 drives the abrasive belt rotating assembly 210 to move forward at a working feed rate of 0.06 mm / min. The dust collection system 3 starts to work and continuously adsorbs the dust in the dust collection hood through the dust collection pipe 207.

[0061] 3) When the seamless abrasive belt 501 contacts the antenna window cover plate 204, under the support of the grinding support wheel 210, the antenna window cover plate 204 and the seamless abrasive belt 501 have a sliding friction. The seamless abrasive belt 501 will polish the antenna window cover plate 204. During the grinding process, the abrasive belt will adhere with grinding debris. When the grinding debris passes under the vibrating plate 410, the vibrating plate 410 in direct contact with the seamless abrasive belt 501 vibrates at a high frequency to shake off the grinding debris and the seamless abrasive belt 501, and the grinding debris falls into the dust collection box 401, so that the seamless abrasive belt 501 maintains good grinding and polishing ability.

[0062] 4) When the set grinding position is reached, the abrasive belt rotating assembly 210 returns to the sensor origin at a rate of 5 mm / s driven by the feed drive motor 211. The main shaft drive motor 202 drives the rotating drum 303 to rotate counterclockwise to the sensor origin, and the abrasive belt drive motor 201 stops working after 2 s.

[0063] 5) After the dust collection system 3 works for 1 min, the operator opens the sealed observation window 4 on the side close to the rotating drum 303 again, and removes the polished antenna window cover plate 204 in sequence, and the grinding and polishing process ends.

[0064] In this article, specific preferred embodiments are applied to expound the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. In addition to the circular curved surface of the above embodiments, the device of the present invention can also be replaced by changing the external shape type of the rolling cylinder according to the shape of the curved thin-walled antenna window cover plate, changing the grinding parameters, and performing reciprocating contour grinding. The grinding method is free and flexible, simple and efficient. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. To sum up, the content of this specification should not be construed as a limitation to the present invention. At the same time, any modifications, equivalent replacements, improvements, etc., made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0065] The present invention relates to a surface coating grinding device for a curved thin-walled antenna window cover plate, which includes a grinding execution component, an operation control box, a dust suction system, a sealed observation window, a profile frame, and a control electrical cabinet. The grinding execution component is installed in the profile frame, and the working space is isolated from the outside through the sealed observation window. The operator realizes human-computer interaction through the operation control box embedded in the sealed observation window. The dust suction system is installed below the grinding execution component and collects the dust generated during the working process through a dust collection pipeline. All control instructions are processed by the control electrical cabinet and then control the grinding execution component to perform the grinding work. The operator only needs to replace the rolling cylinder and the seamless abrasive belt as needed, install the antenna window cover plate on the grinding station, set the grinding parameters, and then the device of the present invention will automatically complete the coating grinding work of 1 to 20 antenna window cover plates. After the grinding is completed, the antenna window cover plate is taken off the station, and the grinding and polishing process is completed. The present invention can be replaced by changing the external shape type of the rolling cylinder according to the shape of the curved thin-walled antenna window cover plate, changing the grinding parameters, and performing reciprocating contour grinding. The grinding method is free and flexible, simple and efficient, effectively improving the grinding efficiency of the surface coating of the curved thin-walled antenna window cover plate and the consistency of the coating thickness. The device is convenient for production conversion adjustment, has good product compatibility with the workpieces to be ground, a wide application range, a simple operation process, and low requirements for the professional technical level of the operator, and is suitable for batch grinding and polishing of the surface coating of the curved thin-walled antenna window cover plate.

Claims

1. A surface coating grinding device for a curved thin-wall antenna window cover plate, characterized in that, Including: A grinding execution component (1), an operation control box (2), a dust suction system (3), a sealed observation window (4), a profile frame (5), and a control electric cabinet (6); the grinding execution component (1), the operation control box (2), the dust suction system (3), and the control electric cabinet (6) are all installed inside the profile frame (5); a sealed observation window (4) is provided on the upper part of the profile frame (5), and the working space is isolated from the outside by the sealed observation window (4); the operator realizes human-machine interaction through the operation control box (2) embedded in the sealed observation window; the grinding execution component (1) is inside the upper part of the profile frame (5), and the dust suction system (3) is installed inside the profile frame (5) below the grinding execution component (1); the dust generated during the working process is collected through the dust collection pipeline of the dust suction system (3); all control instructions input to the operation control box (2) are processed by the control electric cabinet (6) and then control the grinding execution component (1) to perform grinding work. The grinding execution component (1) includes a sand belt drive motor (201), a main shaft drive motor (202), a plum coupling (203), an antenna window cover plate (204), a dust collection hood (205), a mounting base plate (206), a dust collection pipe (207), a main shaft support frame (208), a bearing pressing block (209), a sand belt rotating component (210), a feed drive motor (211), and a roller component (30); among them, a main shaft support frame (208) is installed on the front side of the mounting base plate (206) to support the roller component (30); the rear end of the roller component (30) is connected to the main shaft drive motor (202) through a plum coupling 203; the bearing pressing block (209) is installed on both sides of the main shaft support frame (208) to fixedly support the roller component (30); a feed drive motor (211) and a sand belt drive motor (201) are also provided on the mounting base plate (206), and a sand belt rotating component (210) is provided above the feed drive motor (211). The roller component (30) includes a main shaft bearing (301), a planetary reducer (302), a rotating roller (303), a fixed threaded hole (304), and a clearance window (305), where the planetary reducer (302) is connected to the main shaft bearing (301), the rotating roller (303) is sleeved on the front end of the main shaft bearing (301), and the rotating roller (303) has a fixed threaded hole (304) and a clearance window (305) for fixing the antenna window cover plate (204); an integrated hood (205) is installed below the rotating roller (303) to collect the dust generated during the grinding process and enter the dust suction system (3) through the dust collection pipe (207); the antenna window cover plate (204) is installed on the rotating roller (303). After the main shaft drive motor (202) is connected to the planetary reducer (302) for speed reduction, the rotational power is transmitted to the rotating roller (303) through the plum coupling (203). The abrasive belt rotation and feeding assembly (210) includes a dust collection box (401), a tensioning wheel bracket (402), a torsion spring (403), an abrasive belt driving wheel (404), a linear module (405), a tensioning wheel (406), a guiding wheel (407), a grinding support wheel (408), a sliding plate (409), a vibrating plate (410), and a seamless abrasive belt (501); the linear module (405) is installed at the rear side of the installation base plate (206), and the sliding plate (409) above the linear module (405) is driven to move back and forth by the linear module (405) to realize the feeding of the abrasive belt rotation and feeding assembly (210); the grinding support wheel (408) at the front end of the seamless abrasive belt (501) provides support during the abrasive belt grinding process; the guiding wheel (407) at the upper end of the seamless abrasive belt (501) can correct the left and right positions of the abrasive belt; the abrasive belt driving wheel (404) at the rear end of the seamless abrasive belt (501) is connected to the abrasive belt driving motor (201) to provide power for the rotation of the abrasive belt; during the grinding process, the abrasive belt will be attached with grinding debris. When the grinding debris passes under the vibrating plate (410), the vibrating plate (410) in direct contact with the seamless abrasive belt (501) vibrates at a high frequency to shake off the grinding debris from the seamless abrasive belt (501) and fall into the dust collection box (401), so that the seamless abrasive belt (501) maintains good grinding and polishing ability. In the abrasive belt rotation and feeding assembly (210), the tensioning wheel (406) is fixed on the tensioning bracket (402), and the torsion spring (403) provides a clockwise tensioning force to the tensioning bracket (402) and the tensioning wheel (406), so as to realize the automatic tensioning of the seamless abrasive belt (501); when it is necessary to replace the new seamless abrasive belt (501), press down the quick-release wrench (502) to make the tensioning bracket (402) and the tensioning wheel (406) rotate counterclockwise against the tensioning force of the torsion spring (403). After losing the tensioning force, the old seamless abrasive belt (501) can be easily removed from the left side, and after the new seamless abrasive belt (501) is loaded in place, release the quick-release wrench (502), and the newly loaded seamless abrasive belt (501) will be automatically tensioned immediately.

2. The surface coating grinding device for a curved thin-wall antenna window cover plate according to claim 1, wherein, The grinding device also includes a detachable rolling cylinder structure: after loosening and removing the fixing bolts and pins of the bearing pressing block (9), remove the set screw on the rotating shaft side of the rolling cylinder (303) of the jaw coupling (203), and then the original rolling cylinder (303) can be removed from the main shaft support frame (208). Select a suitable single-row rotating cylinder (601) or double-row rolling cylinder (602), remove the two main shaft bearings (301) from the original rolling cylinder (303) and install them on the new rolling cylinder. Then place the new rolling cylinder on the main shaft support frame (208) in the original direction, install and tighten the set screw on the rotating shaft side of the rolling cylinder (303) of the jaw coupling (203), and install the bearing pressing block (9) and the corresponding fixing bolts and pins back to their original positions to complete the replacement of the rolling cylinder (303).

3. The surface coating grinding device for a curved thin-walled antenna window cover plate according to claim 1, characterized in that Disassembly method of seamless abrasive belt (501): When a new seamless abrasive belt (501) needs to be replaced, press down the quick-release wrench (502) so that the tensioning bracket (402) and the tensioning wheel (406) rotate counterclockwise against the tensioning force of the torsion spring (403). After losing the tensioning force, the old seamless abrasive belt (501) can be easily removed from the left side. After loading the new seamless abrasive belt (501) in place, release the quick-release wrench (502). The tensioning wheel (406) fixed on the tensioning bracket (402), under the push of the clockwise torsional force of the torsion spring (403), the seamless abrasive belt (501) can be automatically tensioned, thus completing the replacement of the seamless abrasive belt (501); the replaced sandpaper is a silicon carbide 400# ring-shaped abrasive belt, and the recommended abrasive belt mesh number range is 120 - 600#.

4. A surface coating grinding device for a curved thin-walled antenna window cover plate according to claim 1, characterized in that, The described method for setting grinding parameters: In this embodiment, the rotating drum rotates continuously counterclockwise at a speed of 30 r / min, and the recommended setting range is 20 - 120 r / min; the seamless abrasive belt rotates continuously counterclockwise at a speed of 2 r / min, and the recommended setting range is 1 - 10 r / min; the working feed rate is 0.06 mm / min, and the recommended setting range is 0.04 - 0.24 mm / min, and the idle stroke feed rate is 5 mm / s, and the recommended setting range is 2 - 12 mm / s.

5. The surface coating grinding device for the curved thin-walled antenna window cover plate according to claim 1, characterized in that, The method for removing grinding debris attached to the seamless abrasive belt: When the grinding debris passes under the vibrating plate, the vibrating plate in direct contact with the seamless abrasive belt vibrates at a high frequency, shaking off the grinding debris from the seamless abrasive belt and falling into the dust collection box, so that the seamless abrasive belt maintains good grinding and polishing ability.

6. The surface coating grinding device for a curved thin-wall antenna window cover plate according to claim 1, characterized in that, The grinding working mode is: first, the rotating drum rotates continuously clockwise, and the seamless abrasive belt (501) rotates continuously counterclockwise; then the abrasive belt rotating assembly moves forward at a rate of 5 mm / s for the idle stroke. When there is still 0.1 mm left from the antenna window cover plate, the abrasive belt rotating assembly moves forward at a rate of 0.06 mm / min for the working feed.

7. The surface coating grinding device for a curved thin-walled antenna window cover plate according to claim 1, characterized in that, The described rotating drum (303) is a single-row rotating drum (601) or a double-row rotating drum (602), and different styles of antenna window cover plates (204) are installed accordingly.

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