Automatic deburring device and method for aviation soft aluminum workpiece

Abstract

The invention discloses an automatic deburring device for aviation soft aluminum workpieces and a method thereof.The automatic deburring device comprises a machining cabin, a brush assembly, a moving assembly, a clamping assembly, a lifting assembly and a control center arranged on the outer side of the machining cabin, the brush assembly is installed on the moving assembly, and the clamping assembly is installed on the lifting assembly; the lifting assembly is installed at the bottom in the machining cabin, the moving assemblies are installed at the positions, on the two sides of the lifting assembly, of the bottom of the machining cabin and located above the lifting assembly, a first collecting unit is further arranged at the top in the machining cabin, and the brush assembly, the moving assemblies, the clamping assembly, the lifting assembly and the first collecting unit are in signal connection with the control center. Through the full-automatic deburring system integrating image recognition, multi-axis linkage, flexible clamping and automatic cleaning, the intelligent degree of the deburring process is improved, the problems of surface scratching, material softening and thin wall deformation caused by traditional rigid tool machining are solved, and burr residues are avoided by adopting a sisal hemp brush to be matched with a moving assembly.

Description

Technical Field

[0001] This invention relates to an automatic deburring device and method for aerospace soft aluminum workpieces, belonging to the field of deburring technology. Background Technology

[0002] Deburring is an indispensable post-processing step in the machining industry. Burrs are tiny, sharp protrusions or filamentous residues formed at the machined edges during material removal processes such as grinding, drilling, milling, turning, and engraving, due to plastic deformation, material tearing, or extension of the workpiece. The presence of these burrs not only results in rough workpiece edges and affects aesthetics, but also significantly reduces assembly accuracy and efficiency, easily accumulates static electricity and contaminants, and becomes stress concentration points, severely impacting the workpiece's performance, reliability, and fatigue life. In high-precision fields such as aerospace, the requirements for the cleanliness, surface integrity, and dimensional stability of precision parts are extremely stringent; even the smallest burr is unacceptable.

[0003] Precision aerospace parts are often manufactured using soft aluminum alloys. These materials have excellent specific strength and machinability, but they are inherently soft with low yield strength, making them highly susceptible to plastic deformation under mechanical stress and heat. Furthermore, soft aluminum is not heat-resistant and is prone to softening, microstructural changes, and surface oxidation at higher temperatures, thus compromising its inherent mechanical properties and dimensional accuracy.

[0004] Currently, common deburring methods in the industry mainly include thermal methods, chemical methods, and mechanical methods. For precision aerospace soft aluminum parts, thermal methods generate instantaneous high temperatures, and chemical methods are prone to introducing chemical contamination or altering the surface properties of the material, both of which have limitations in application. Therefore, mechanical methods, especially those using automated equipment for targeted removal, remain the mainstream choice. However, they still face technical challenges: when a high-speed rotating rigid tool comes into contact with the soft aluminum workpiece, it generates significant cutting forces and frictional heat. This localized high temperature can easily cause the surface of the soft aluminum workpiece to soften and microscopically melt, damaging the surface integrity of the material. At the same time, the rigid contact of the rigid tool can easily cause scratches, indentations, or irreversible deformation of thin-walled structures on the soft aluminum surface.

[0005] Furthermore, the shape, size, and location of burrs vary randomly due to tool wear and machining paths. Fixed motion trajectory programs cannot intelligently adapt to these changes. For tiny or soft burrs, incomplete removal is easy; while for cases with slight positioning deviations or larger burrs, the tool may not only remove the burrs but also damage the geometric contour of the workpiece, severely affecting dimensional accuracy and even leading to part scrap. Summary of the Invention

[0006] Purpose of the invention: To address the shortcomings of existing technologies, this invention provides an automatic deburring device and method for aerospace soft aluminum workpieces. This invention achieves fully automatic and precise deburring of aerospace soft aluminum workpieces by integrating a processing chamber, a brush assembly, a moving assembly, a clamping assembly, a lifting assembly, and a control center.

[0007] Technical Solution: An automatic deburring device for aerospace soft aluminum workpieces includes a processing chamber, a brush assembly, a moving assembly, a clamping assembly, a lifting assembly disposed in the processing chamber, and a control center disposed outside the processing chamber. The brush assembly is mounted on the moving assembly, the clamping assembly is mounted on the lifting assembly, the lifting assembly is mounted at the bottom of the processing chamber, and the moving assembly is mounted on both sides of the bottom of the processing chamber above the lifting assembly. A first acquisition unit is also provided at the top of the processing chamber. The brush assembly, moving assembly, clamping assembly, lifting assembly, and first acquisition unit are respectively connected to the control center via signals.

[0008] This invention achieves fully automatic and precise deburring of aerospace soft aluminum workpieces by integrating a processing chamber, brush assembly, moving assembly, clamping assembly, lifting assembly and control center. It solves the technical problems of traditional rigid tool deburring, which easily leads to surface scratches, thermal softening and thin-wall deformation of soft aluminum workpieces, and the inability of fixed trajectory programs to adapt to random burr morphologies.

[0009] In a preferred embodiment, to optimize burr removal and avoid surface damage, the brush assembly includes a mounting plate, a first motor, a protective shell, a drive unit disposed within the protective shell, and a brush mounted on the drive unit. One side of the mounting plate is detachably connected to a moving component, and the other side is detachably connected to the first motor. The protective shell is detachably connected to the mounting plate. The first motor is drive-connected to the drive unit, and the connection point is disposed within the protective shell. The first motor is signal-connected to a control center. The axis of the brush is inclined relative to the workpiece surface.

[0010] By tilting the axis of the sisal brush relative to the workpiece surface, burrs are efficiently removed by "scraping" rather than "pressing down," while the flexibility of the sisal material prevents scratches on the soft aluminum surface.

[0011] In a preferred embodiment, to simulate manual reciprocating brushing motions and prevent burrs from tangling, the drive unit includes a guide block, a telescopic rod, a driving gear and a driven gear that mesh with each other. The driving gear is connected to a first motor, and the driven gear is provided with an eccentric column. The telescopic rod has a sliding groove in its vertical direction, and the eccentric column is slidably connected to the sliding groove. The distance from the center of the sliding groove to the groove wall along the vertical direction of the telescopic rod is greater than the distance from the eccentric column to the center of the driven gear. The guide block is provided on the side wall of the protective shell, and one end of the telescopic rod passes through both the guide block and the side wall of the protective shell and connects to the brush.

[0012] The rotational motion is converted into the precise reciprocating linear motion of the telescopic rod by the cooperation of the eccentric column and the sliding groove in the drive unit, realizing the high-frequency micro-amplitude reciprocating motion of the brush, effectively removing burrs and avoiding fiber entanglement.

[0013] In a preferred embodiment, to ensure the cleanliness and stability of the brush during continuous operation, a cleaning box is also included, which is located inside the processing chamber. The cleaning box is equipped with a second acquisition unit and an air purging assembly that are respectively connected to the control center. The air purging assembly is located on two opposite side walls of the cleaning box, and the air purging assembly includes a nozzle and a fan installed inside the nozzle.

[0014] By using multiple sets of air blowing components installed in the cleaning box, the brush bristles are blown in a directional and powerful manner to thoroughly remove embedded aluminum shavings and prevent residual burrs from causing secondary scratches to subsequent workpieces.

[0015] In a preferred embodiment, for deep cleaning of tangled burrs, the cleaning box further includes a combing assembly connected to the control center. The combing assembly includes a first electric telescopic cylinder, a first lead screw module, a first slider, and a steel needle comb mounted on the first electric telescopic cylinder. The first electric telescopic cylinder is connected to the first lead screw module via the first slider. The first electric telescopic cylinder and the first lead screw module are connected to the control center. The steel needle comb is arranged perpendicular to the axis of the brush.

[0016] By setting the steel needle comb perpendicular to the brush axis, and with the precise control of the electric telescopic cylinder and the first lead screw module, the steel needles can penetrate deep into the root of the bristles to comb them axially, effectively removing the mechanical entanglement of stubborn burrs.

[0017] In a preferred embodiment, to achieve precise tracking of burrs on complex curved surfaces, the moving component includes a second lead screw module, a third lead screw module, a fourth lead screw module perpendicular to the second lead screw module, a fifth lead screw module arranged vertically, and mounting seats respectively installed on the bottom of the processing chambers on both sides of the lifting component. The second and third lead screw modules are respectively installed parallel to each other on the mounting seats on both sides. The fourth lead screw module has second sliders at both ends of its side wall, and the fourth lead screw module is slidably connected to the second and third lead screw modules through the second sliders. The fifth lead screw module has a third slider on one side, and the fifth lead screw module is slidably connected to the fourth lead screw module through the third slider. The fifth lead screw module has a fourth slider on the other side, and the brush assembly is slidably connected to the fifth lead screw module through the fourth slider.

[0018] Through a multi-axis linkage lead screw module system, the brush assembly can be precisely positioned with multiple degrees of freedom in space, ensuring that the brush head can completely cover all burr distribution areas along the preset trajectory.

[0019] In a preferred embodiment, to protect the workpiece surface while ensuring reliable clamping, the clamping assembly is provided in at least two sets, respectively located on both sides of the workpiece. The clamping assembly includes a second electric telescopic cylinder connected to the control center, a flexible mandrel installed at the output end of the second electric telescopic cylinder, and a pressure sensor installed inside the flexible mandrel. The pressure sensor is connected to the control center.

[0020] By employing a flexible mandrel clamping device with a pressure sensor, a constant and controllable clamping force output is achieved, ensuring clamping stability while avoiding indentation deformation on the surface of soft aluminum workpieces.

[0021] In a preferred embodiment, to ensure the stability and precision of the processing, the lifting assembly includes a fixed base, a scissor-type bracket, a lifting platform, a second motor mounted on the fixed base, a worm gear module, and a fifth slider. The upper end of the scissor-type bracket is hinged to the lifting platform, one side of the lower end is hinged to the fixed base, and the other side is hinged to the fifth slider. The fifth slider is connected to the worm gear module via a worm drive, and the second motor and the worm gear module are mutually connected via a drive mechanism.

[0022] The scissor-type lifting mechanism, driven by a worm gear, enables the worktable to be lifted and lowered smoothly and vertically, eliminating the impact and vibration of traditional cylinder lifting and ensuring the precise execution of the brush processing trajectory.

[0023] In a preferred embodiment, to enhance the system's flexibility in handling special burrs, a hand-cranked pulse generator is also included, which is signal-connected to the moving component.

[0024] By adding a hand-cranked pulse generator, the manual fine-tuning positioning function is realized, enabling operators to precisely repair residual burrs that the vision system fails to identify.

[0025] A method for implementing an automated deburring device for aerospace-grade soft aluminum workpieces includes the following steps: Step 1: Place the workpiece on the lifting assembly. The clamping assembly is controlled by the control center to clamp the workpiece. The pressure sensor transmits pressure signals to the control center in real time. The control center adjusts the extension and retraction of the second electric telescopic cylinder according to the pressure value. Step 2: After clamping, the lifting assembly is controlled by the control center to lift the workpiece to the processing position. Once the workpiece is in the processing position, the first acquisition unit acquires images of burrs on the workpiece and sends them to the control center. The control center then plans the movement trajectory of the brush based on the acquired data. Step 3: After the control center plans the motion trajectory, the operator determines whether the motion trajectory covers all the burrs. If so, the operation is started by confirming the start through the control center. The control center controls the moving component to drive the brush component to move back and forth in a straight line from the initial point of the motion trajectory to remove the burrs. The operation is repeated at least twice along the motion trajectory. If not, the motion trajectory is manually rewritten by the control center and then executed. After the initial burr removal is completed, the first acquisition unit acquires burr images again and sends them to the control center. If there are still burrs that have not been removed, the operator controls the hand-cranked pulse generator to drive the moving component to the location of the remaining burrs for individual removal. Step 4: After the burrs are removed, the moving component drives the brush component into the cleaning box. The second acquisition unit collects the brush position image and sends it to the control center. The control center adjusts the brush position to the designated cleaning area through the moving component. Step 5: The control center starts the air blowing component to initially blow the brush for 5 minutes. Then, the combing component is started to control the steel needle comb to cut vertically into the root of the brush and move outward along the brush axis. After moving outside the brush, it returns to the root of the brush and combs in a cycle at least five times. Step 6: After the cycle is complete, reset the steel needle comb, restart the air blowing assembly to blow the brush, and after 5 minutes, turn off the air blowing assembly, move the assembly to move the brush assembly out of the cleaning box and reset it.

[0026] Beneficial effects: This invention improves the intelligence and efficiency of the deburring process by constructing a fully automated deburring system that integrates image recognition, multi-axis linkage, flexible clamping, and automatic cleaning. It also improves the problems of surface scratches, material softening, and thin-wall deformation caused by traditional rigid tool processing. At the same time, the use of sisal brushes in conjunction with moving components effectively avoids burr residue and fiber entanglement. The integrated steel needle combing and air blowing components ensure continuous and stable tool operation. Combined with force-controlled clamping and manual pulse fine-tuning functions, it achieves precise, flexible, and adaptive processing of aerospace soft aluminum workpieces, which can meet the stringent requirements of the aerospace field for the surface integrity, cleanliness, and dimensional stability of precision parts. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the brush assembly of the present invention; Figure 3 This is a structural diagram of the drive unit of the present invention; Figure 4 This is a diagram of the internal structure of the cleaning box of the present invention; Figure 5 This is a structural diagram of the mobile component of the present invention; Figure 6 This is a structural diagram of the clamping assembly of the present invention; Figure 7 This is a structural diagram of the lifting assembly of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] like Figure 1 As shown, an automatic deburring device for aerospace soft aluminum workpieces includes a processing chamber 1, a brush assembly 2, a moving assembly 3, a clamping assembly 4, a lifting assembly 5 disposed in the processing chamber 1, and a control center 6 disposed outside the processing chamber 1. The brush assembly 2 is mounted on the moving assembly 3, the clamping assembly 4 is mounted on the lifting assembly 5, the lifting assembly 5 is mounted at the bottom of the processing chamber 1, the moving assembly 3 is mounted on both sides of the bottom of the processing chamber 1 above the lifting assembly 5, and a first acquisition unit 7 is also provided at the top of the processing chamber 1. The brush assembly 2, the moving assembly 3, the clamping assembly 4, the lifting assembly 5, and the first acquisition unit 7 are respectively connected to the control center 6 via signals.

[0033] By integrating the processing chamber 1, brush assembly 2, moving assembly 3, clamping assembly 4, lifting assembly 5 and control center 6, fully automatic and precise deburring of aerospace soft aluminum workpieces is achieved. This solves the technical problems of traditional rigid tool deburring, which easily leads to surface scratches, thermal softening and thin-wall deformation of soft aluminum workpieces, as well as the inability of fixed trajectory programs to adapt to random burr morphologies.

[0034] like Figure 2As shown, in order to optimize the burr removal effect and avoid surface damage, the brush assembly 2 includes a mounting plate 21, a first motor 22, a protective shell 23, a drive unit 24 disposed within the protective shell 23, and a brush 25 mounted on the drive unit 24. One side of the mounting plate 21 is detachably connected to the moving assembly 3, and the other side is detachably connected to the first motor 22. The protective shell 23 is detachably connected to the mounting plate 21. The first motor 22 is drive-connected to the drive unit 24, and its connection point is disposed within the protective shell 23. The first motor 22 is signal-connected to the control center 6. The axis of the brush 25 is inclined relative to the workpiece surface.

[0035] By tilting the axis of the sisal brush 25 relative to the workpiece surface, burrs are efficiently removed by "scraping" rather than "pressing down," while the flexibility of the sisal material prevents scratches on the soft aluminum surface. In this embodiment, the brush 25 is made of sisal.

[0036] like Figure 3 As shown, in order to simulate the reciprocating brushing action of a human and prevent burrs from getting tangled, the drive unit 24 includes a guide block 241, a telescopic rod 242, a driving gear 243 and a driven gear 244 that mesh with each other. The driving gear 243 is connected to the first motor 22. An eccentric column 2441 is provided on the driven gear 244. A sliding groove 2421 is provided in the vertical direction of the telescopic rod 242. The eccentric column 2441 is slidably connected to the sliding groove 2421. The distance from the center of the sliding groove 2421 to the groove wall in the vertical direction of the telescopic rod 242 is greater than the distance from the eccentric column 2441 to the center of the driven gear 244. The guide block 241 is provided on the side wall of the protective shell 23. One end of the telescopic rod 242 passes through the guide block 241 and the side wall of the protective shell 23 and is connected to the brush 25.

[0037] The rotational motion is converted into the precise reciprocating linear motion of the telescopic rod 242 by the cooperation of the eccentric column 2441 and the sliding groove 2421 in the drive unit 24, so as to realize the high-frequency micro-amplitude reciprocating motion of the brush 25, effectively removing burrs and avoiding fiber entanglement.

[0038] like Figure 4 As shown, in order to ensure the cleanliness and stability of the brush 25 during continuous operation, a cleaning box 8 is also included in the processing chamber 1. The cleaning box 8 is equipped with a second acquisition unit 81 and an air blowing assembly 82 that are respectively connected to the control center 6. The air blowing assembly 82 is respectively installed on two opposite side walls of the cleaning box 8. The air blowing assembly 82 includes a nozzle 821 and a fan 822 installed in the nozzle 821.

[0039] By using multiple sets of air blowing components 82 installed in the cleaning box 8, the brush bristles are blown in a directional and powerful manner to thoroughly remove embedded aluminum shavings and prevent residual burrs from causing secondary scratches to subsequent workpieces.

[0040] To deeply clean tangled burrs, the cleaning box 8 also includes a combing assembly 83 connected to the control center 6. The combing assembly 83 includes a first electric telescopic cylinder 831, a first lead screw module 832, a first slider 833, and a steel needle comb 834 mounted on the first electric telescopic cylinder 831. The first electric telescopic cylinder 831 is connected to the first lead screw module 832 through the first slider 833. The first electric telescopic cylinder 831 and the first lead screw module 832 are connected to the control center 6. The steel needle comb 834 is arranged perpendicular to the axis of the brush 25.

[0041] By setting the steel needle comb 834 perpendicular to the brush 25 axis, and with the precise control of the electric telescopic cylinder and the first lead screw module 832, the steel needles can penetrate deep into the root of the bristles to comb axially, effectively removing the mechanical entanglement of stubborn burrs.

[0042] like Figure 5 As shown, in order to achieve accurate tracking of burrs on complex curved surfaces, the moving component 3 includes a second lead screw module 31, a third lead screw module 32, a fourth lead screw module 33 arranged perpendicular to the second lead screw module 31, a fifth lead screw module 34 arranged in the vertical direction, and mounting seats 35 respectively installed on the bottom of the processing chamber 1 on both sides of the lifting component 5. The second lead screw module 31 and the third lead screw module 32 are respectively installed parallel to each other on the mounting seats 35 on both sides. The fourth lead screw module 33 has a second slider 331 at both ends of its side wall. The fourth lead screw module 33 is slidably connected to the second lead screw module 31 and the third lead screw module 32 through the second slider 331. The fifth lead screw module 34 has a third slider 341 on one side. The fifth lead screw module 34 is slidably connected to the fourth lead screw module 33 through the third slider 341. The fifth lead screw module 34 has a fourth slider 342 on the other side. The brush component 2 is slidably connected to the fifth lead screw module 34 through the fourth slider 342.

[0043] Through the multi-axis linkage lead screw module system, the brush component 2 can be precisely positioned with multiple degrees of freedom in the space, ensuring that the brush head can completely cover all burr distribution areas along the preset trajectory.

[0044] like Figure 6As shown, in order to protect the workpiece surface while reliably clamping, the clamping assembly 4 is provided with at least two sets and is respectively provided on both sides of the workpiece. The clamping assembly 4 includes a second electric telescopic cylinder 41 that is signal-connected to the control center 6, a flexible mandrel 42 installed at the output end of the second electric telescopic cylinder 41, and a pressure sensor 43 installed in the flexible mandrel 42. The pressure sensor 43 is signal-connected to the control center 6.

[0045] By employing a flexible mandrel 42 clamping device with a pressure sensor 43, a constant and controllable clamping force output is achieved, ensuring clamping stability while avoiding indentation deformation on the surface of the soft aluminum workpiece. In this embodiment, the flexible mandrel 42 is made of rubber.

[0046] like Figure 7 As shown, to ensure the stability and precision of the processing, the lifting assembly 5 includes a fixed base 51, a scissor-type bracket 52, a lifting platform 53, a second motor 54 mounted on the fixed base 51, a worm gear module 55, and a fifth slider 56. The upper end of the scissor-type bracket 52 is hinged to the lifting platform 53, one side of the lower end is hinged to the fixed base 51, and the other side is hinged to the fifth slider 56. The fifth slider 56 is connected to the worm gear module 55 via worm drive. The second motor 54 and the worm gear module 55 are mutually connected via drive.

[0047] The scissor-type lifting mechanism driven by worm gears enables the worktable to be lifted and lowered smoothly and vertically, eliminating the impact and vibration of traditional cylinder lifting and ensuring the precise execution of the brush 25 processing trajectory.

[0048] To enhance the system's flexibility in handling special burrs, a hand-cranked pulse generator 9 is also included, which is signal-connected to the moving component 3.

[0049] By adding a hand-cranked pulse generator 9, a manual fine-tuning positioning function is realized, enabling operators to precisely repair residual burrs that the vision system fails to identify.

[0050] A method for implementing an automated deburring device for aerospace-grade soft aluminum workpieces includes the following steps: Step 1: Place the workpiece on the lifting assembly 5, and control the clamping assembly 4 to clamp the workpiece through the control center 6. The pressure sensor 43 transmits pressure signals to the control center 6 in real time, and the control center 6 adjusts the extension and retraction of the second electric telescopic cylinder 41 according to the pressure value. Step 2: After clamping is completed, the lifting assembly 5 is raised to the processing position by the control center 6. After arriving at the processing position, the first acquisition unit 7 acquires the burr image on the workpiece and sends it to the control center 6. The control center 6 plans the movement trajectory of the brush 25 according to the acquired data. Step 3: After the control center 6 plans the motion trajectory, the operator determines whether the motion trajectory covers all the burrs. If so, the operation is confirmed by the control center 6. The control center 6 controls the moving component 3 to drive the brush component 2 to move back and forth in a straight line from the initial point of the motion trajectory to remove the burrs. The operation is repeated at least twice along the motion trajectory. If not, the motion trajectory is manually rewritten by the control center 6 and then executed. After the initial cleaning of burrs is completed, the first acquisition unit 7 acquires burr images again and sends them to the control center 6. If there are still burrs that have not been removed, the operator drives the moving component 3 to the location of the remaining burrs by controlling the hand-cranked pulse generator 9 to remove them individually. Step 4: After the burrs are cleaned, the moving component 3 drives the brush component 2 into the cleaning box 8. The second acquisition unit 81 acquires the position image of the brush 25 and sends it to the control center 6. The control center 6 adjusts the position of the brush 25 to the designated cleaning area through the moving component 3. Step 5: Control center 6 controls air blowing component 82 to start initial blowing of brush 25 for 5 minutes. Then start combing component 83 to control steel needle comb 834 to cut vertically into the root of brush 25 and move outward along the axis of brush 25. After moving outside brush 25, return to the root of brush 25 for cyclic combing. Repeat at least five times. Step 6: After the cycle is complete, the steel needle comb 834 is reset. The air blowing assembly 82 is started again to blow the brush 25. After 5 minutes, the air blowing assembly 82 is turned off, and the moving assembly 3 moves the brush assembly 2 out of the cleaning box 8 and then resets.

[0051] In this embodiment, the first lead screw module 832, the second lead screw module 31, the third lead screw module 32, the fourth lead screw module 33, and the fifth lead screw module 34 have the same structure, each including a slide table, a lead screw, and a drive motor. The drive motor is connected to the lead screw through a transmission. The lead screw is set inside the slide table, and its slider is installed on the slide table and is also connected to the lead screw inside it through a transmission.

[0052] In this embodiment, the control center 6 includes an industrial display and a CNC panel, which is divided into a number area, a letter area, an emergency stop button, a function area, and a fine-tuning area.

[0053] In this embodiment, the processing chamber 1 is equipped with red / yellow / green indicator lights. When the chamber door is opened to place or retrieve a workpiece, the yellow indicator light is constantly on; when the device is operating normally, the green indicator light is constantly on; when the device malfunctions, the red indicator light flashes.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic deburring device for aerospace soft aluminum workpieces, characterized in that: The system includes a processing chamber (1), a brush assembly (2), a moving assembly (3), a clamping assembly (4), a lifting assembly (5) disposed in the processing chamber (1), and a control center (6) disposed outside the processing chamber (1). The brush assembly (2) is mounted on the moving assembly (3), the clamping assembly (4) is mounted on the lifting assembly (5), the lifting assembly (5) is mounted at the bottom inside the processing chamber (1), the moving assembly (3) is mounted at the bottom of the processing chamber (1) on both sides of the lifting assembly (5) and located above the lifting assembly (5), and a first acquisition unit (7) is also provided at the top inside the processing chamber (1). The brush assembly (2), the moving assembly (3), the clamping assembly (4), the lifting assembly (5), and the first acquisition unit (7) are respectively connected to the control center (6) via signals.

2. The automatic deburring device for aerospace soft aluminum workpieces according to claim 1, characterized in that: The brush assembly (2) includes a mounting plate (21), a first motor (22), a protective shell (23), a drive unit (24) disposed in the protective shell (23), and a brush (25) mounted on the drive unit (24). One side of the mounting plate (21) is detachably connected to the moving assembly (3), and the other side is detachably connected to the first motor (22). The protective shell (23) is detachably connected to the mounting plate (21). The first motor (22) is connected to the drive unit (24) in a transmission manner, and the connection point is disposed in the protective shell (23). The first motor (22) is connected to the control center (6) in a signal manner. The axis of the brush (25) is inclined relative to the surface of the workpiece.

3. The automatic deburring device for aerospace soft aluminum workpieces according to claim 2, characterized in that: The drive unit (24) includes a guide block (241), a telescopic rod (242), a drive gear (243) and a driven gear (244) that mesh with each other. The drive gear (243) is connected to the first motor (22) for transmission. An eccentric column (2441) is provided on the driven gear (244). A sliding groove (2421) is provided in the vertical direction of the telescopic rod (242). The eccentric column (2441) is slidably connected to the sliding groove (2421). The distance from the center of the sliding groove (2421) to the groove wall in the vertical direction of the telescopic rod (242) is greater than the distance from the eccentric column (2441) to the center of the driven gear (244). The guide block (241) is provided on the side wall of the protective shell (23). One end of the telescopic rod (242) passes through the guide block (241) and the side wall of the protective shell (23) and is connected to the brush (25).

4. The automatic deburring device for aerospace soft aluminum workpieces according to claim 2, characterized in that: It also includes a cleaning box (8) installed in the processing chamber (1). The cleaning box (8) is equipped with a second acquisition unit (81) and an air purging assembly (82) that are respectively connected to the control center (6). The air purging assembly (82) is installed on two opposite side walls of the cleaning box (8). The air purging assembly (82) includes a nozzle (821) and a fan (822) installed in the nozzle (821).

5. The automatic deburring device for aerospace soft aluminum workpieces according to claim 4, characterized in that: The cleaning box (8) also includes a combing assembly (83) connected to the control center (6) via signal. The combing assembly (83) includes a first electric telescopic cylinder (831), a first lead screw module (832), a first slider (833), and a steel needle comb (834) mounted on the first electric telescopic cylinder (831). The first electric telescopic cylinder (831) is connected to the first lead screw module (832) via the first slider (833). The first electric telescopic cylinder (831) and the first lead screw module (832) are connected to the control center (6) via signal. The steel needle comb (834) is arranged perpendicular to the axis of the brush (25).

6. The automatic deburring device for aerospace soft aluminum workpieces according to claim 1, characterized in that: The moving component (3) includes a second lead screw module (31), a third lead screw module (32), a fourth lead screw module (33) arranged perpendicular to the second lead screw module (31), a fifth lead screw module (34) arranged in the vertical direction, and mounting seats (35) respectively installed on the bottom of the processing chamber (1) on both sides of the lifting component (5). The second lead screw module (31) and the third lead screw module (32) are respectively installed parallel to each other on the mounting seats (35) on both sides. The fourth lead screw module (33) has second sliders (331) at both ends of its side wall. The fourth lead screw module (33) is slidably connected to the second lead screw module (31) and the third lead screw module (32) through the second slider (331). The fifth lead screw module (34) has a third slider (341) on one side and is slidably connected to the fourth lead screw module (33) through the third slider (341). The fifth lead screw module (34) has a fourth slider (342) on the other side. The brush assembly (2) is slidably connected to the fifth lead screw module (34) through the fourth slider (342).

7. The automatic deburring device for aerospace soft aluminum workpieces according to claim 1, characterized in that: The clamping assembly (4) is provided in at least two sets and is respectively provided on both sides of the workpiece. The clamping assembly (4) includes a second electric telescopic cylinder (41) connected to the control center (6), a flexible mandrel (42) installed at the output end of the second electric telescopic cylinder (41), and a pressure sensor (43) installed in the flexible mandrel (42). The pressure sensor (43) is connected to the control center (6).

8. The automatic deburring device for aerospace soft aluminum workpieces according to claim 1, characterized in that: The lifting assembly (5) includes a fixed base (51), a scissor bracket (52), a lifting platform (53), a second motor (54) mounted on the fixed base (51), a worm gear module (55), and a fifth slider (56). The upper end of the scissor bracket (52) is hinged to the lifting platform (53), one side of the lower end is hinged to the fixed base (51), and the other side is hinged to the fifth slider (56). The fifth slider (56) is connected to the worm gear module (55) via worm drive. The second motor (54) and the worm gear module (55) are connected to each other via mutual drive.

9. The automatic deburring device for aerospace soft aluminum workpieces according to claim 1, characterized in that: It also includes a hand-cranked pulse generator (9), which is signal-connected to the moving component (3).

10. A method for implementing the automatic deburring device for aerospace soft aluminum workpieces according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Place the workpiece on the lifting assembly (5), and control the clamping assembly (4) to clamp the workpiece through the control center (6). The pressure sensor (43) transmits the pressure signal to the control center (6) in real time. The control center (6) adjusts the extension and retraction of the second electric telescopic cylinder (41) according to the pressure value. Step 2: After clamping is completed, the lifting assembly (5) is raised to the processing position by the control center (6). After arriving at the processing position, the first acquisition unit (7) acquires the burr image on the workpiece and sends it to the control center (6). The control center (6) plans the movement trajectory of the brush (25) according to the acquired data. Step 3: After the control center (6) plans the motion trajectory, the operator determines whether the motion trajectory covers all the burrs. If so, the operator confirms the start through the control center (6). The control center (6) controls the moving component (3) to drive the brush component (2) to move back and forth in a straight line from the initial point of the motion trajectory to remove the burrs. The motion trajectory is executed at least twice. If not, the operator manually rewrites the motion trajectory through the control center (6) and then executes it again. After the initial cleaning of burrs is completed, the first acquisition unit (7) acquires burr images again and sends them to the control center (6). If there are burrs that have not been removed, the operator drives the moving component (3) to the location of the remaining burrs by controlling the hand-cranked pulse generator (9) to remove them separately. Step 4: After the burrs are cleaned, the moving component (3) drives the brush component (2) into the cleaning box (8). The second acquisition unit (81) acquires the position image of the brush (25) and sends it to the control center (6). The control center (6) adjusts the position of the brush (25) to the designated cleaning area through the moving component (3). Step 5: The control center (6) controls the air blowing assembly (82) to start the initial blowing of the brush (25) for 5 minutes. Then, the combing assembly (83) is started to control the steel needle comb (834) to cut vertically into the root of the brush (25) and move outward along the axis of the brush (25). After moving outside the brush (25), it returns to the root of the brush (25) and combs in a cycle for at least five times. Step 6: After the cycle is completed, the steel needle comb (834) is reset, and the air blowing assembly (82) is started again to blow the brush (25). After 5 minutes, the air blowing assembly (82) is turned off, and the moving assembly (3) moves the brush assembly (2) out of the cleaning box (8) and then resets.

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