Automatic wiping device for surfaces of special-shaped parts

Abstract

The invention discloses a special-shaped part surface automatic wiping device which comprises a workbench, a moving mechanism, a wiping mechanism and a rotary clamping mechanism are installed on the workbench, the moving mechanism comprises a vertical moving assembly and a horizontal moving assembly, and vertical and horizontal movement of the wiping mechanism is achieved; the wiping mechanism comprises a cloth roll driving assembly, a tensioning assembly and a flexible profiling assembly, the surface of the part is wiped through dust-free cloth, and the flexible profiling assembly ensures that the dust-free cloth is attached to the outer surface of the part in a profiling mode; the rotary clamping mechanism comprises a clamping assembly and a rotating assembly, a high-precision collet of the clamping assembly clamps a part, and the rotating assembly drives the part to rotate. According to the device, the surfaces of the special-shaped parts can be automatically wiped, the wiping efficiency and quality are improved, and the adaptability is high.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning devices, in particular to an automatic wiping device for surfaces of special-shaped parts. Background Art

[0002] In modern industrial production systems, the application range of special-shaped parts is constantly expanding, from complex titanium alloy structures in the aerospace field, special-shaped engine parts in the automotive industry, to micro-shaped components in precision instruments. These parts are often designed with special structures such as deep holes, curved surfaces, corners, and grooves due to functional requirements. Their surface cleanliness is directly related to product performance and service life. However, current surface cleaning processes still face many technical pain points that need to be addressed.

[0003] Traditional wiping methods are dominated by manual labor, which has significant efficiency and quality shortcomings. Manual wiping relies on the operator's experience and physical strength. Not only is the cleaning efficiency low, but it is also difficult to ensure the consistency of the cleaning effect. Parts from the same batch may experience fluctuations in surface residue due to uneven wiping force and different dwell times, resulting in large deviations. Operator fatigue during long hours of operation will lead to a further decline in cleaning quality, and may even cause secondary contamination of the part surface due to sweat and grease from the hands. Even more seriously, if hard wiping materials are used during manual operation, it is very easy to cause scratches on the thin walls and sharp corners of special-shaped parts. Such damage can even directly lead to the scrapping of parts.

[0004] At the same time, the negative impact of residual impurities on subsequent processes far exceeds expectations. Residual cutting fluid film, metal debris, dust, and other contaminants adhering to part surfaces can cause increased wear on mating surfaces during assembly, increasing equipment operating noise and shortening service life. During the coating process, particulate impurities can cause defects such as bubbling and peeling, leading to high rework rates and significantly extended production cycles. For special-shaped parts requiring sealing performance, such as the irregularly shaped valve blocks in hydraulic systems, residual oil on the surface can accelerate seal aging and create leakage risks.

[0005] The technical limitations of existing automated wiping devices further highlight the industry's predicament. When it comes to cleaning blind spots, the rigid wiping arms of traditional devices are unable to reach deep holes and inner corners on unusually shaped parts, while the flexible wiping heads are prone to misalignment due to a lack of precise guidance. Furthermore, existing equipment is often customized for specific part models. Switching to parts with significantly different diameters or shapes requires recalibrating the robotic arm trajectory and replacing the wiping components, which takes a long time.

[0006] In summary, with the continuous improvement of the surface quality requirements for special-shaped parts in the high-end manufacturing field, the development of a surface wiping device that can take into account the adaptability of complex structures, multi-model compatibility and cleaning efficiency has become the key to breaking through production bottlenecks and ensuring product quality. Summary of the Invention

[0007] Aiming at the problems of slow wiping efficiency, low cleanliness and poor compatibility of special-shaped parts, the present invention provides an automatic wiping device for the surface of special-shaped parts with high wiping efficiency, high cleanliness and high compatibility.

[0008] The present invention provides the following technical solutions: an automatic wiping device for the surface of special-shaped parts, comprising a workbench, the workbench is equipped with a moving mechanism, a wiping mechanism and a rotating clamping mechanism, the moving mechanism comprises a vertical moving component and a horizontal moving component, the vertical moving component is used for the vertical up and down movement of the wiping mechanism, and the horizontal moving component is used for the horizontal back and forth movement of the wiping mechanism; the wiping mechanism comprises a cloth roll driving component, a tensioning component and a flexible profiling component, the cloth roll driving component comprises a unwinding wheel, a winding wheel, a winding motor, a connecting wheel and a dust-free cloth roll, the dust-free cloth roll is mounted on the unwinding wheel, and the dust-free cloth of the dust-free cloth roll is wound onto the winding wheel through the connecting wheel The winding motor drives the winding wheel to rotate for winding, and the tensioning assembly is used to tension the dust-free cloth. The dust-free cloth between the unwinding wheel and the winding wheel is the wiping working area. The flexible profiling assembly is arranged directly above the dust-free cloth in the wiping working area. The flexible profiling assembly is used to press the dust-free cloth in the wiping working area onto the outer surface of the part and perform profiling and fitting; the rotary clamping mechanism includes a clamping assembly and a rotating assembly. The clamping assembly includes several high-precision barrel clamps for clamping parts. Several high-precision barrel clamps are arranged along the length direction of the dust-free cloth, and the high-precision barrel clamps are located directly below the dust-free cloth in the wiping working area. The rotating assembly is used to drive several high-precision barrel clamps to rotate.

[0009] In some embodiments, the horizontal moving component includes a horizontal drive motor, a horizontal slide and a horizontal fixed plate. The horizontal drive motor drives the horizontal fixed plate to move on the horizontal slide. The vertical moving component includes a vertical drive motor, a vertical slide and a vertical fixed plate. The vertical drive motor drives the vertical fixed plate to move vertically on the vertical slide. The vertical moving component, the cloth roll drive component and the tensioning component are all fixed on the horizontal fixed plate, and the flexible contouring component is fixed on the vertical fixed plate.

[0010] In some embodiments, the connecting wheel includes a first connecting wheel, a second connecting wheel and a third connecting wheel, and the three connecting wheels are located on the same horizontal plane. The second connecting wheel and the third connecting wheel are symmetrically arranged on the left and right sides of the flexible contoured component. The first connecting wheel is arranged on the left side of the second connecting wheel. The tensioning assembly includes a tensioning wheel, which is located between the first connecting wheel and the second connecting wheel. The dust-free cloth roll passes through the unwinding wheel, the first connecting wheel, the tensioning wheel, the second connecting wheel, the third connecting wheel and the winding wheel in sequence.

[0011] In some embodiments, the tensioning assembly includes a tensioning elastic member and a connecting plate. The tensioning wheel is arranged above the connecting wheel. The horizontal fixed plate is provided with an arc groove for the sliding of the tensioning wheel. The connecting plate is installed on the rear side of the horizontal fixed plate. A connecting rod is fixed at the center axis of the tensioning wheel. The connecting rod is fixedly connected to one end of the connecting plate through the arc groove. The other end of the connecting plate is hinged to the back side of the horizontal fixed plate. A reset protrusion is installed on the horizontal fixed plate. The reset protrusion is located above the tensioning wheel. The reset protrusion and the connecting rod are connected by a tensioning elastic member.

[0012] In some embodiments, the cloth roll drive assembly includes an unwinding motor, which drives the unwinding wheel to unwind. A height sensor is provided on the connecting rod. The winding motor drives the winding wheel to rewind. The unwinding wheel acts as a driven wheel to unwind. The tensioning wheel slides to the lowest point of the arc groove under the tension of the dust-free cloth. The height sensor senses the height position of the lowest point, stops the winding motor, and starts the unwinding motor to drive the unwinding wheel to unwind. When the tensioning wheel slides to the highest point of the arc groove, the height sensor senses the height position of the highest point, and the unwinding motor stops.

[0013] In some embodiments, the vertical fixing plate is provided with a mounting hole for installing a flexible profiling component, the flexible profiling component includes a pressure head, a pressure rod seat, an external spring, a mounting seat and a limit block. The pressure head is fixed to the lower end of the pressure rod seat by a bolt, and the lower end surface of the pressure head is provided with a profiling groove consistent with the shape of the outer surface of the part. The mounting seat is fixed directly below the mounting hole, and the center hole of the mounting seat is coaxially arranged with the mounting hole. The pressure rod seat is inserted into the center of the mounting hole and the mounting seat in turn, and the pressure rod seat can slide vertically up and down, and the upper end of the pressure rod seat is fixedly connected to the limit block, and the limit block is arranged above the mounting hole. A retaining ring is protruding outward from the outer wall surface of the lower end of the pressure rod seat, and an external spring is sleeved on the pressure rod seat. The two ends of the external spring are respectively against the lower end surface of the mounting seat and the upper end surface of the retaining ring.

[0014] In some embodiments, a blind hole is provided at the central axis of the pressure rod seat, the opening of the blind hole is located at the upper end face of the pressure rod seat, the blind hole includes a first inner hole, a profiling needle is placed in the first inner hole, the needle portion of the profiling needle is consistent in shape with the hole on the upper wall of the part, the lower end of the first inner hole is provided with a through hole for the needle portion of the profiling needle to pass through, the upper end of the first inner hole is threadedly connected with a locking screw, an inner spring is provided between the locking screw and the profiling needle, and the two ends of the inner spring are respectively against the lower end face of the locking screw and the upper end face of the profiling needle.

[0015] In some embodiments, the rotating assembly includes a fixed seat, a tooling base plate, a rotating rod, a rotating motor, a bearing, a connecting gear and a transmission gear. The high-precision collet is fixed on the fixed seat. The connecting gear and the transmission gear are provided in the accommodating cavity of the tooling base plate. The fixed seat is arranged above the tooling base plate. The two ends of the rotating rod are respectively connected to the fixed seat and the transmission gear. The rotating rod is connected to the tooling base plate through a bearing. The transmission gear, the rotating rod and the fixed seat are coaxially arranged. Adjacent transmission gears are meshed and transmitted through the connecting gear. The rotating motor is arranged below the tooling base plate. The output gear of the rotating motor is meshed and connected with the transmission gear.

[0016] In some embodiments, the rotary clamping mechanism includes a disengagement component, which includes a mounting frame, a telescopic cylinder, a disengagement slide, a disengagement slider and a support seat. The mounting cavity of the mounting frame accommodates the tooling base plate, and the disengagement sliders are symmetrically fixed on the left and right sides of the tooling base plate. The disengagement slide is installed on the inner wall of the accommodating cavity of the mounting frame, and the disengagement slide is arranged in coordination with the disengagement slider. The telescopic cylinder is fixed on the mounting frame, and the telescopic cylinder is located directly above the disengagement slider. The piston rod of the telescopic cylinder is fixedly connected to the disengagement slider, and the piston rod of the telescopic cylinder pushes the disengagement slide to move vertically up and down. The support seat is arranged at the bottom of the mounting cavity of the mounting frame, and the support seat is located directly below the tooling base plate for supporting the tooling base plate.

[0017] In some embodiments, a plurality of transmission gears and a plurality of connecting gears are symmetrically arranged on both sides of an output gear of the rotary motor, and the output gear of the rotary motor is engaged with adjacent transmission gears simultaneously.

[0018] Compared with the prior art, the advantages of the present invention are: 1. It can fully fit the special-shaped structure without any blind spots. The flexible profiling component fits the outer surface of the part through the profiling groove of the pressure head, and cooperates with the elastic pressure of the external spring to ensure close contact with the special-shaped curved surface. The profiling needle design specifically solves the cleaning problems of small holes, depressions and other details. The needle of the profiling needle matches the shape of the hole and depression, and the internal spring provides soft micro-pressure, so that the needle can accurately penetrate and fit the inner wall, achieving full-dimensional coverage from the outer surface to the fine structure.

[0019] 2. The cleanliness and tension of the dust-free cloth are stable to ensure cleaning quality; the cloth roll drive component realizes automatic unwinding or rewinding of the dust-free cloth, and the used dirty cloth is recycled in real time to avoid secondary contamination; the tensioning component dynamically adjusts the cloth surface tension through the linkage of the tensioning wheel, arc groove and sensor to ensure stable wiping pressure and consistent cleaning effect.

[0020] 3. Synchronous operation of multiple parts significantly improves efficiency; the rotary clamping mechanism adopts multiple high-precision collets to clamp parts in parallel, and the high-precision collets are rotated synchronously through gear transmission, so that batches of parts can be cleaned at the same time, greatly improving industrial production efficiency.

[0021] 4. Modular design enhances versatility and adapts to diverse needs; the pressure head is detachably connected to the pressure rod seat by bolts, and the profiling needle can be replaced by removing the locking screws. It can quickly adapt to the outer surfaces of parts of different shapes and small holes and recessed structures, and flexibly respond to the cleaning needs of various special-shaped parts.

[0022] 5. Full process automation reduces manual dependence; integrated horizontal or vertical movement, cloth roll start and stop, tension adjustment, part rotation cleaning, and separation components work together with the mobile mechanism to achieve automated control of part placement and retrieval. No manual intervention is required throughout the process, reducing operational errors, improving production stability, and adapting to automated production line integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of another angle of the present invention; Figure 3 It is a structural schematic diagram of the horizontal moving assembly of the present invention; Figure 4 It is a structural schematic diagram of the vertical moving assembly of the present invention; Figure 5 It is a structural schematic diagram of the tensioning assembly of the present invention; Figure 6 It is a structural schematic diagram of the flexible contouring component of the present invention; Figure 7 is a schematic cross-sectional view of the flexible contouring component of the present invention; Figure 8 It is a structural schematic diagram of the rotary clamping mechanism of the present invention; Figure 9 It is a structural schematic diagram of the vertical fixing plate of the present invention.

[0025] In the figure: 1. workbench; 2. moving mechanism; 21. horizontal moving assembly; 211. horizontal drive motor; 212. horizontal slide; 213. horizontal fixed plate; 2131. arc groove; 22. vertical moving assembly; 221. vertical drive motor; 222. vertical slide; 223. vertical fixed plate; 2231. mounting hole; 3. wiping mechanism; 31. cloth roll driving assembly; 311. unwinding wheel; 312. rewinding wheel; 313. rewinding motor; 314. first connecting wheel; 315. second connecting wheel; 316. third connecting wheel; 317. dust-free cloth roll; 318. unwinding motor; 319. height sensor; 32. tensioning assembly; 321. tensioning wheel; 322. tensioning elastic member; 323. connecting plate; 324. connecting rod; 325. reset bump; 33. flexible profiling assembly; 331 , pressure head; 3311, profiling groove; 332, pressure rod seat; 3321, retaining ring; 3322, first inner hole; 3323, through hole; 3324, second inner hole; 333, outer spring; 334, mounting seat; 335, limit block; 336, profiling needle; 337, locking screw; 338, inner spring; 4, rotating clamping mechanism; 41, clamping assembly; 411, high-precision collet clamp; 42, rotating assembly Parts; 421, fixed seat; 422, tooling base; 4221, accommodating cavity; 423, rotating rod; 424, rotating motor; 4241, output gear; 425, bearing; 426, connecting gear; 427, transmission gear; 43, disengagement component; 431, mounting bracket; 4311, mounting cavity; 432, telescopic cylinder; 433, disengagement slide; 434, disengagement slider; 435, support seat. DETAILED DESCRIPTION

[0026] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0028] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0030] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0031] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0032] See also Figure 1-2In this embodiment, an automatic wiping device for the surface of special-shaped parts includes a workbench 1, which is equipped with a moving mechanism 2, a wiping mechanism 3 and a rotating clamping mechanism 4. The moving mechanism 2 includes a vertical moving component 22 and a horizontal moving component 21. The vertical moving component 22 is used for the wiping mechanism 3 to move vertically up and down, and the horizontal moving component 21 is used for the wiping mechanism 3 to move back and forth horizontally; the wiping mechanism 3 includes a cloth roll driving component 31, a tensioning component 32 and a flexible profiling component 33. The cloth roll driving component 31 includes a unwinding wheel 311, a winding wheel 312, a winding motor 313, a connecting wheel and a dust-free cloth roll 317. The dust-free cloth roll 317 is installed on the unwinding wheel 311, and the dust-free cloth of the dust-free cloth roll 317 is wound on the winding wheel through the connecting wheel. On 312, the winding motor 313 drives the winding wheel 312 to rotate for winding, the tensioning component 32 is used to tension the dust-free cloth, the dust-free cloth between the unwinding wheel 311 and the winding wheel 312 is the wiping working area, and the flexible profiling component 33 is arranged directly above the dust-free cloth in the wiping working area. The flexible profiling component 33 is used to press the dust-free cloth in the wiping working area onto the outer surface of the part and perform profiling; the rotating clamping mechanism 4 includes a clamping component 41 and a rotating component 42. The clamping component 41 includes several high-precision barrel clamps 411 for clamping parts. Several high-precision barrel clamps 411 are arranged along the length direction of the dust-free cloth, and the high-precision barrel clamps 411 are located directly below the dust-free cloth in the wiping working area. The rotating component 42 is used to drive several high-precision barrel clamps 411 to rotate.

[0033] In some embodiments, as Figure 3-Figure 4As shown, the horizontal moving component 21 includes a horizontal driving motor 211, a horizontal slide 212 and a horizontal fixed plate 213. The horizontal driving motor 211 drives the horizontal fixed plate 213 to move on the horizontal slide 212. The vertical moving component 22 includes a vertical driving motor 221, a vertical slide 222 and a vertical fixed plate 223. The vertical driving motor 221 drives the vertical fixed plate 223 to move vertically on the vertical slide 222. The vertical moving component 22, the cloth roll driving component 31 and the tensioning component 32 are all fixed on the horizontal fixed plate 213, and the flexible profiling component 33 is fixed on the vertical fixed plate 223. It should be noted that the horizontal moving component 21 and the vertical moving component 22 adopt a split drive structure. The horizontal driving motor 211 independently controls the horizontal movement of the horizontal fixed plate 213, and the vertical driving motor 221 independently drives the vertical movement of the vertical fixed plate 223, which can be realized. The precise linkage control of the wiping mechanism 3 in the horizontal and vertical directions greatly improves the alignment accuracy between the wiping working area and the part surface; at the same time, the vertical moving component 22, the cloth roll driving component 31 and the tensioning component 32 are integrated and fixed on the horizontal fixed plate 213, and the flexible profiling component 33 is separately fixed on the vertical fixed plate 223, which not only ensures the coordination of the movement of each component, but also simplifies the overall structural layout through modular integration, reducing the space occupied by the equipment; in addition, the guiding effect of the horizontal slide 212 and the vertical slide 222 can effectively reduce the vibration and deviation during the movement, ensuring that the dust-free cloth always maintains a stable tension state and fitting pressure during the wiping process, thereby improving the uniformity and consistency of wiping the surface of special-shaped parts; this structural design also facilitates the flexible adjustment of the horizontal and vertical movement parameters according to the wiping requirements of special-shaped parts of different specifications, thereby enhancing the adaptability and practical value of the equipment.

[0034] It should be noted that the horizontal moving component 21 drives the horizontal fixed plate 213 to move through the horizontal drive motor 211 and the internal screw transmission, and the vertical moving component 22 drives the vertical fixed plate 223 to move through the vertical drive motor 221 and the internal screw transmission.

[0035] In some embodiments, as Figure 1-Figure 2As shown, the connecting wheels include a first connecting wheel 314, a second connecting wheel 315 and a third connecting wheel 316, and the three connecting wheels are located on the same horizontal plane. The second connecting wheel 315 and the third connecting wheel 316 are symmetrically arranged on the left and right sides of the flexible profiling component 33. The first connecting wheel 314 is arranged on the left side of the second connecting wheel 315. The tensioning component 32 includes a tensioning wheel 321, and the tensioning wheel 321 is located between the first connecting wheel 314 and the second connecting wheel 315. The dust-free cloth roll 317 passes through the unwinding wheel 311, the first connecting wheel 314, the tensioning wheel 321, the second connecting wheel 315, the third connecting wheel 316 and the reeling wheel 312 in sequence. It should be noted that the three connecting wheels are arranged in the same horizontal plane, which can ensure that the dust-free cloth maintains a horizontal running state during the transmission process to avoid The wrinkles or offsets caused by the height difference provide a basic guarantee for the flatness of the subsequent wiping work area; the second connecting wheel 315 and the third connecting wheel 316 are symmetrically distributed on both sides of the flexible contoured component 33, so that the wiping work area of ​​the dust-free cloth can form a stable horizontal support section. When the flexible contoured component 33 is pressed down, the support section can be evenly stressed and tightly fit the surface of the part, effectively improving the consistency of the wiping contact; the position of the first connecting wheel 314 and the tensioning wheel 321 is set on the left side of the second connecting wheel 315, so that the dust-free cloth passes through the tensioning wheel 321 to adjust the tension before entering the wiping area. The tension fluctuations of the dust-free cloth during the winding and unwinding process can be compensated in real time through the tensioning wheel 321, and the pre-tensioning effect of this section of the path can be used to avoid the problem of false contact caused by the loose dust-free cloth during wiping.

[0036] In some embodiments, as Figure 5When the cam 321 is in the unlock state, the locking cam 324 is locked and the locking cam 325 is locked, so the cam 321 is locked. The elastic tension of 322 forms an adaptive tension adjustment mechanism; when the dust-free cloth changes in length due to unwinding and rewinding, the tensioning wheel 321 can slide flexibly along the arc groove 2131, and automatically compensate for the tension fluctuation by stretching the elastic member 322, ensuring that the dust-free cloth always maintains a stable tension, avoiding poor fit during wiping due to excessive looseness or damage to the dust-free cloth due to excessive tightness; the hinged design of the connecting plate 323 and the horizontal fixed plate 213 converts the sliding of the tensioning wheel 321 into rotation around the hinge point, reducing the rigid friction between components, reducing mechanical loss, and improving the smoothness of the tension adjustment; this design does not require complex electronic control adjustment, and dynamic tension balance can be achieved only through mechanical structure, which not only simplifies the control logic, but also provides continuous and uniform tension for the dust-free cloth during the wiping process, ensuring its close fit with the surface of the part, thereby improving the stability of the wiping effect on the surface of special-shaped parts.

[0037] In some embodiments, as Figure 1-Figure 5As shown, the cloth roll drive assembly 31 includes an unwinding motor 318, which drives the unwinding wheel 311 to unwind, a height sensor 319 is provided on the connecting rod 324, and the winding motor 313 drives the winding wheel 312 to rewind, and the unwinding wheel 311 is used as a driven wheel to unwind, and the tensioning wheel 321 slides to the lowest point of the arc groove 2131 under the tension of the dust-free cloth, and the height sensor 319 senses the height position, so that the winding motor 313 stops running and starts the unwinding motor 318 to drive the unwinding wheel 311 to unwind, until the tensioning wheel 321 slides to the highest point of the arc groove 2131, the height sensor 319 senses the height position, and the unwinding motor 313 stops running and starts the unwinding motor 318 to drive the unwinding wheel 311 to unwind, until the tensioning wheel 321 slides to the highest point of the arc groove 2131, the height sensor 319 senses the height position, and the unwinding motor 3 18 stops running. It should be noted that this structure monitors the position of the tensioning wheel 321 in the arc groove 2131 in real time through the height sensor 319, and realizes the intelligent linkage control of the unwinding motor 318 and the rewinding motor 313: when the tensioning wheel 321 slides to the lowest point of the arc groove 2131 due to the increase of the dust-free cloth tension, the height sensor 319 triggers the rewinding motor 313 to stop and the unwinding motor 318 to start unwinding, so as to avoid the dust-free cloth from breaking due to excessive tension; when the tensioning wheel 321 slides to the highest point of the arc groove 2131 as the unwinding relaxes, the sensor controls the unwinding motor 318 to stop, so as to ensure that the dust-free cloth always maintains an appropriate tension. This automatic adjustment mechanism does not require human intervention, which not only ensures the stable fit of the dust-free cloth and the surface of the part, but also avoids damage to the cloth roll due to abnormal tension, significantly improving the stability and continuity of the wiping process. At the same time, the unwinding wheel 311 acts as a driven wheel and cooperates with the rewinding wheel 312 to actively rewind, combined with the active feeding of the unwinding motor 318, so that the conveying rhythm of the dust-free cloth is accurately matched with the wiping requirements, further improving the degree of automation and operational reliability of the equipment.

[0038] In some embodiments, as Figure 6-Figure 9As shown, the vertical fixing plate 223 is provided with a mounting hole 2231 for mounting the flexible profiling component 33, and the flexible profiling component 33 includes a pressure head 331, a pressure rod seat 332, an outer spring 333, a mounting seat 334 and a limit block 335. The pressure head 331 is fixed to the lower end of the pressure rod seat 332 by a bolt. The lower end surface of the pressure head 331 is provided with a profiling groove 3311 consistent with the shape of the outer surface of the part. The mounting seat 334 is fixed just below the mounting hole 2231, and the center hole of the mounting seat 334 is aligned with the mounting hole 2231. The cam 332 is provided with a screw bolt 333 on the top of the cam 334 so that the cam 333 can be screwed in. The cam 333 is provided with a screw bolt 333 on the top of the cam 334 so that the cam 333 can be screwed in. The cam 332 is pressed against the top of the workpiece 331 and the cam 333 is pressed against the workpiece 331 so that the workpiece 333 is in a state of contact with the workpiece 331. The cam 332 is pressed against the workpiece 331 and the cam 333 is pressed against the workpiece 331.

[0039] In some embodiments, as Figure 6-Figure 7The cam 338 is a hole that is fixed on the cam 339 of the embodiment of the invention, and the cam 339 is a hole that is fixed on the cam 339 of the invention. , achieving synchronous and all-round cleaning of the part's outer surface and hole structure, the elastic support of the inner spring 338 enables the profiling needle 336 to have a certain buffer adjustment ability, and can automatically adjust the extension and contraction amount according to the depth of the hole or the slight size difference, to avoid scratches or deformation of the part hole wall caused by rigid contact, and at the same time ensure that the profiling needle 336 and the inner wall of the hole always maintain appropriate fitting pressure, thereby improving the wiping effect. In addition, the threaded connection design of the locking screw 337 facilitates the rapid replacement of profiling needles 336 of different specifications, and cooperates with the outer surface profiling function realized by the outer spring 333 to form a dual adaptation structure in which the outer profiling groove 3311 cooperates with the profiling needle 336, which greatly enhances the adaptability of the equipment to complex and special-shaped parts; this modular design also simplifies the maintenance process, reduces the debugging cost for different parts, and further improves the practical value and operational flexibility of the equipment.

[0040] It should be noted that the blind hole includes a second inner hole 3324 , which is located above the first inner hole 3322 , and an inner diameter of the second inner hole 3324 is larger than that of the first inner hole 3322 .

[0041] In some embodiments, as Figure 8As shown, the rotating assembly 42 includes a fixed seat 421, a tooling base 422, a rotating rod 423, a rotating motor 424, a bearing 425, a connecting gear 426 and a transmission gear 427. The high-precision collet 411 is fixed on the fixed seat 421. A connecting gear 426 and a transmission gear 427 are provided in the accommodating cavity 4221 of the tooling base 422. The fixed seat 421 is arranged above the tooling base 422. The two ends of the rotating rod 423 are respectively connected to the fixed seat 421 and the transmission gear 427. The rotating rod 423 is connected to the tooling base 422 through a bearing 425. The transmission gear 427, the rotating rod 423 and the fixed seat 421 are coaxially arranged. Adjacent transmission gears 427 are engaged and transmitted through the connecting gear 426. The rotating motor 424 is arranged under the tooling base 422. On the one hand, the output gear 4241 of the rotating motor 424 is meshed with the transmission gear 427. It should be noted that the adjacent transmission gears 427 are meshed through the connecting gear 426, and the output gear 4241 of the rotating motor 424 directly drives the transmission gear 427 to form a stable transmission chain, ensuring that multiple high-precision collet chucks 411 rotate synchronously, avoiding the problem of uneven wiping of parts due to speed differences, and is particularly suitable for batch wiping operations of special-shaped parts of the same batch; the transmission gear 427, the rotating rod 423 and the fixed seat 421 are coaxially arranged, combined with the supporting role of the bearing 425 on the rotating rod 423, which greatly improves the concentricity of the rotation process, effectively reduces the radial runout of the part during rotation, ensures the stability of the fit between the outer surface of the part and the dust-free cloth, and thus improves the wiping accuracy.

[0042] In some embodiments, as Figure 8As shown, the rotating clamping mechanism 4 includes a disengagement component 43, which includes a mounting frame 431, a telescopic cylinder 432, a disengagement slide 433, a disengagement slider 434 and a support seat 435. The mounting cavity 4311 of the mounting frame 431 accommodates the tooling base plate 422, and the disengagement sliders 434 are symmetrically fixed on the left and right sides of the tooling base plate 422. The disengagement slider 433 is installed on the inner wall of the accommodating cavity 4221 of the mounting frame 431, and the disengagement slider 433 is coordinated with the disengagement slider 434. The telescopic cylinder 432 is fixed on the mounting frame 431, and the telescopic cylinder 432 is located directly above the disengagement slider 434. The piston rod of the telescopic cylinder 432 is fixedly connected to the disengagement slider 434. The piston rod of the telescopic cylinder 432 pushes the disengagement slide 433 to move vertically up and down. The support seat 435 is arranged at the bottom of the mounting cavity 4311 of the mounting frame 431, and the support seat 435 is located at the bottom of the tooling base plate 422. The lower part is used to support the tooling base plate 422. It should be noted that the disengagement component 43 drives the disengagement slide 434 to move vertically along the disengagement slide 433 through the telescopic cylinder 432, thereby realizing the automatic lifting and lowering of the tooling base plate 422 without the need for manual handling and adjustment, which greatly improves the convenience and efficiency of parts loading and unloading. The precise coordination between the disengagement slide 433 and the disengagement slide 434 provides a stable guide for the lifting and lowering of the tooling base plate 422, effectively avoiding offset or shaking during movement, ensuring the accuracy of the high-precision collet 411 and the part position, and reducing the wiping error caused by positioning deviation; and when it is necessary to pick and place parts, the telescopic cylinder 432 pushes the tooling base plate 422 down to the support seat 435, forming a space that is convenient for operation, realizing rapid switching between working state and loading and unloading state. This structural design not only ensures the stability of the equipment during the wiping process, but also simplifies the parts loading and unloading process and reduces the intensity of manual operation.

[0043] In some embodiments, as Figure 8 As shown, several transmission gears 427 and several connecting gears 426 are symmetrically arranged on both sides of the output gear 4241 of the rotating motor 424, and the output gear 4241 of the rotating motor 424 simultaneously meshes with adjacent transmission gears 427. It should be noted that the transmission mode in which the output gear 4241 of the rotating motor 424 simultaneously meshes with adjacent transmission gears 427 can evenly transmit the motor power to the transmission mechanisms on both sides, effectively avoiding the transmission deviation caused by excessive force on one side, and significantly improving the synchronization and stability of the rotation of multiple sets of high-precision collet clamps 411; this symmetrical structure can reduce the transmission error caused by the gear meshing gap, ensure that all clamped special-shaped parts maintain a consistent rotation speed, ensure that the wiping force and frequency of the surface of each part are uniform, and improve the consistency of batch wiping; at the same time, the design of a single motor driving multiple sets of gear transmission simplifies the number of power sources, reduces equipment energy consumption and failure rate, and the symmetrical layout makes the overall transmission structure more compact, saves installation space of the workbench 1, and facilitates the integrated design and maintenance of the equipment.

[0044] Workflow: S1. Parts clamping: The disengaging assembly 43 of the rotating clamping mechanism 4 makes the tooling base 422 supported by the support base 435, and the special-shaped parts are placed in a plurality of high-precision collets 411, which clamp and fix the parts.

[0045] S2, wiping preparation stage: the cloth roll driving assembly 31 operates, the unwinding motor 318 drives the unwinding wheel 311 to release the dust-free cloth, and the dust-free cloth passes through the first connecting wheel 314, the tensioning wheel 321, the second connecting wheel 315 and the third connecting wheel 316 in sequence, and the winding motor 313 drives the winding wheel 312 to prepare for winding. In the tensioning assembly 32, the tensioning wheel 321 tensions the dust-free cloth under the action of the tensioning elastic member 322. If the tensioning wheel 321 slides to the lowest point of the arc groove 2131, the height sensor 319 stops the winding motor 313 after sensing, and the unwinding motor 318 starts unwinding until the tensioning wheel 321 slides to At the highest point of the arc groove 2131, the unwinding motor 318 stops; the horizontal drive motor 211 of the moving mechanism 2 drives the horizontal fixed plate 213 to move on the horizontal slide 212, and moves the wiping mechanism 3 as a whole to a position where the wiping working area of ​​the dust-free cloth is aligned with the clamped part below; the vertical drive motor 221 drives the vertical fixed plate 223 to move vertically on the vertical slide 222, driving the flexible profiling component 33 to move downward, so that the profiling groove 3311 on the lower end face of the pressure head 331 presses the dust-free cloth in the wiping working area against the outer surface of the part. After the position adjustment is completed, the horizontal moving component 21 and the vertical moving component 22 stop running.

[0046] S3, start wiping stage: the rotating motor 424 of the rotating component 42 is started, and its output gear 4241 drives the transmission gear 427 to rotate, and the adjacent transmission gears 427 are engaged and transmitted through the connecting gear 426, so that the rotating rod 423 drives the fixed seat 421 and the high-precision collet chuck 411 to rotate, and then drives the parts to rotate continuously to achieve self-cleaning of the parts; when the dust-free cloth has worked for a period of time, the rotating motor 424 stops running, and the piston rod of the telescopic cylinder 432 of the disengagement component 43 pushes the disengagement slider 434 to move the tooling base 422 downward, and the parts are disengaged from the dust-free cloth. The cloth roll driving assembly 31 continues to work, the winding motor 313 drives the winding wheel 312 to rotate and rewind the used dust-free cloth, and the unwinding wheel 311 acts as a driven wheel to release the new dust-free cloth accordingly. The tensioning assembly 32 always keeps the dust-free cloth in a tensioned state. After the replacement is completed, the piston rod of the telescopic cylinder 432 drives the part to move up and contact the dust-free cloth, and through the flexible profiling assembly 33, the outer spring 333 and the inner spring 338 are used to make the pressure head 331 conform to the outer surface of the part, and the surface is wiped by utilizing the relative movement between the rotation of the part and the dust-free cloth.

[0047] S4, end stage of wiping: the rotating component 42 stops working, and the high-precision collet 411 stops driving the part to rotate; the vertical drive motor 221 of the moving mechanism 2 drives the vertical fixed plate 223 to move upward, so that the pressure head 331 of the flexible contouring component 33 leaves the surface of the part; the horizontal drive motor 211 drives the horizontal fixed plate 213 to move, driving the wiping mechanism 3 to reset as a whole, and the cloth roll driving component 31 continues to work, and the winding motor 313 drives the winding wheel 312 to rotate and wind up the used dust-free cloth, and the unwinding wheel 311 acts as a driven wheel to release the new dust-free cloth accordingly for the next wiping; at the same time, in the disengagement component 43 of the rotating clamping mechanism 4, the piston rod of the telescopic cylinder 432 pushes the disengagement slider 434, so that the tooling base plate 422 moves down along the disengagement slide 433 to the support seat 435, and the high-precision collet 411 releases the part, making it easy to remove the part.

[0048] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0049] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An automatic wiping device for the surface of a special-shaped part, comprising a workbench (1), characterized in that: The workbench (1) is equipped with a moving mechanism (2), a wiping mechanism (3) and a rotating clamping mechanism (4). The moving mechanism (2) comprises a vertical moving component (22) and a horizontal moving component (21), wherein the vertical moving component (22) is used for the wiping mechanism (3) to move vertically up and down, and the horizontal moving component (21) is used for the wiping mechanism (3) to move horizontally back and forth; The wiping mechanism (3) comprises a cloth roll driving assembly (31), a tensioning assembly (32) and a flexible profiling assembly (33); the cloth roll driving assembly (31) comprises a unwinding wheel (311), a rewinding wheel (312), a rewinding motor (313), a connecting wheel and a dust-free cloth roll (317); the dust-free cloth roll (317) is mounted on the unwinding wheel (311); the dust-free cloth of the dust-free cloth roll (317) is rewound onto the rewinding wheel (317) through the connecting wheel. 12), the winding motor (313) drives the winding wheel (312) to rotate for winding, the tensioning assembly (32) is used to tension the dust-free cloth, the dust-free cloth between the unwinding wheel (311) and the winding wheel (312) is the wiping working area, the flexible profiling assembly (33) is arranged just above the dust-free cloth wiping the working area, and the flexible profiling assembly (33) is used to press the dust-free cloth wiping the working area onto the outer surface of the part and perform profiling; The rotary clamping mechanism (4) comprises a clamping assembly (41) and a rotating assembly (42), wherein the clamping assembly (41) comprises a plurality of high-precision barrel clamps (411) for clamping parts, wherein the plurality of high-precision barrel clamps (411) are arranged along the length direction of the dust-free cloth, and the plurality of high-precision barrel clamps (411) are located directly below the dust-free cloth wiping the working area, and the rotating assembly (42) is used to drive the plurality of high-precision barrel clamps (411) to rotate.

2. The automatic wiping device for surfaces of special-shaped parts according to claim 1, characterized in that: The horizontal moving assembly (21) comprises a horizontal driving motor (211), a horizontal slide (212) and a horizontal fixed plate (213); the horizontal driving motor (211) drives the horizontal fixed plate (213) to move on the horizontal slide (212); the vertical moving assembly (22) comprises a vertical driving motor (221), a vertical slide (222) and a vertical fixed plate (223); the vertical driving motor (221) drives the vertical fixed plate (223) to move vertically on the vertical slide (222); the vertical moving assembly (22), the cloth roll driving assembly (31) and the tensioning assembly (32) are all fixed on the horizontal fixed plate (213); and the flexible profiling assembly (33) is fixed on the vertical fixed plate (223).

3. The automatic wiping device for the surface of special-shaped parts according to claim 2, characterized in that: The connecting wheels include a first connecting wheel (314), a second connecting wheel (315) and a third connecting wheel (316), and the three connecting wheels are located on the same horizontal plane. The second connecting wheel (315) and the third connecting wheel (316) are symmetrically arranged on the left and right sides of the flexible contour component (33). The first connecting wheel (314) is arranged on the left side of the second connecting wheel (315). The tensioning component (32) includes a tensioning wheel (321), and the tensioning wheel (321) is located between the first connecting wheel (314) and the second connecting wheel (315). The dust-free cloth roll (317) passes through the unwinding wheel (311), the first connecting wheel (314), the tensioning wheel (321), the second connecting wheel (315), the third connecting wheel (316) and the rewinding wheel (312) in sequence.

4. The automatic wiping device for the surface of special-shaped parts according to claim 3, characterized in that: The tensioning assembly (32) includes a tensioning elastic member (322) and a connecting plate (323). The tensioning wheel (321) is arranged above the connecting wheel. The horizontal fixing plate (213) is provided with an arc groove (2131) for the tensioning wheel (321) to slide. The connecting plate (323) is installed on the rear side of the horizontal fixing plate (213). A connecting rod (324) is fixed at the central axis of the tensioning wheel (321). The connecting rod (324) The arc-shaped groove (2131) is fixedly connected to one end of the connecting plate (323), and the other end of the connecting plate (323) is hinged to the back of the horizontal fixing plate (213). A reset protrusion (325) is installed on the horizontal fixing plate (213), and the reset protrusion (325) is located above the tensioning wheel (321). The reset protrusion (325) and the connecting rod (324) are connected via the tensioning elastic member (322).

5. The automatic wiping device for the surface of special-shaped parts according to claim 4, characterized in that: The cloth roll drive assembly (31) comprises an unwinding motor (318), the unwinding motor (318) drives the unwinding wheel (311) to unwind, a height sensor (319) is provided on the connecting rod (324), the rewinding motor (313) drives the rewinding wheel (312) to rewind, the unwinding wheel (311) acts as a driven wheel to unwind, the tensioning wheel (321) slides to the lowest point of the arc groove (2131) under the pulling force of the dust-free cloth, the height sensor (319) senses the height position of the lowest point, stops the rewinding motor (313), and starts the unwinding motor (318) to drive the unwinding wheel (311) to unwind, until the tensioning wheel (321) slides to the highest point of the arc groove (2131), the height sensor (319) senses the height position of the highest point, and the unwinding motor (318) stops running.

6. The automatic wiping device for the surface of special-shaped parts according to claim 2, characterized in that: The vertical fixing plate (223) is provided with a mounting hole (2231) for mounting the flexible profiling component (33). The flexible profiling component (33) includes a pressure head (331), a pressure rod seat (332), an external spring (333), a mounting seat (334) and a limit block (335). The pressure head (331) is fixed to the lower end of the pressure rod seat (332) by bolts. The lower end surface of the pressure head (331) is provided with a profiling groove (3311) that is consistent with the shape of the outer surface of the part. The mounting seat (334) is fixed directly below the mounting hole (2231). The center hole of the mounting seat (334) is aligned with the mounting hole (2231). The pressure rod seat (332) is coaxially arranged, and is inserted into the center of the mounting hole (2231) and the mounting seat (334) in sequence, and the pressure rod seat (332) can slide vertically up and down, and the upper end of the pressure rod seat (332) is not fixedly connected to the limiting block (335), and the limiting block (335) is arranged above the mounting hole (2231). The outer wall surface of the lower end of the pressure rod seat (332) protrudes outward with a retaining ring (3321), and the pressure rod seat (332) is sleeved with an outer spring (333), and the two ends of the outer spring (333) are respectively against the lower end surface of the mounting seat (334) and the upper end surface of the retaining ring (3321).

7. The automatic wiping device for the surface of special-shaped parts according to claim 6, characterized in that: A blind hole is provided at the central axis of the pressure rod seat (332), the opening of the blind hole is located at the upper end surface of the pressure rod seat (332), the blind hole includes a first inner hole (3322), a profiling needle (336) is placed in the first inner hole (3322), the needle portion of the profiling needle (336) is consistent with the shape of the hole on the upper wall of the part, the lower end of the first inner hole (3322) is provided with a through hole (3323) for the needle portion of the profiling needle (336) to pass through, the upper end of the first inner hole (3322) is threadedly connected with a locking screw (337), an inner spring (338) is provided between the locking screw (337) and the profiling needle (336), and the two ends of the inner spring (338) are respectively against the lower end surface of the locking screw (337) and the upper end surface of the profiling needle (336).

8. The automatic wiping device for surfaces of special-shaped parts according to claim 1, characterized in that: The rotating assembly (42) includes a fixed seat (421), a tooling base plate (422), a rotating rod (423), a rotating motor (424), a bearing (425), a connecting gear (426) and a transmission gear (427). The high-precision collet (411) is fixed on the fixed seat (421). The connecting gear (426) and the transmission gear (427) are provided in the accommodating cavity (4221) of the tooling base plate (422). The fixed seat (421) is provided above the tooling base plate (422). The two ends of the rotating rod (423) are respectively connected to the fixed seat (421). The fixed seat (421) and the transmission gear (427), the rotating rod (423) is connected to the tooling base plate (422) through the bearing (425), the transmission gear (427), the rotating rod (423) and the fixed seat (421) are coaxially arranged, and adjacent transmission gears (427) are meshed and transmitted through the connecting gear (426). The rotating motor (424) is arranged below the tooling base plate (422), and the output gear (4241) of the rotating motor (424) is meshed and connected with the transmission gear (427).

9. The automatic wiping device for the surface of special-shaped parts according to claim 8, characterized in that: The rotary clamping mechanism (4) includes a disengagement component (43), the disengagement component (43) includes a mounting frame (431), a telescopic cylinder (432), a disengagement slide (433), a disengagement slider (434) and a support seat (435), the mounting cavity (4311) of the mounting frame (431) accommodates the tooling base plate (422), the disengagement slider (434) is symmetrically fixed on the left and right sides of the tooling base plate (422), the disengagement slider (433) is installed on the inner wall surface of the accommodating cavity (4221) of the mounting frame (431), and the disengagement slider (433) and the disengagement slider (434) are symmetrically fixed on the left and right sides of the tooling base plate (422). 434) is arranged in cooperation with the mounting frame (431), the telescopic cylinder (432) is fixed on the mounting frame (431), the telescopic cylinder (432) is located directly above the disengagement slider (434), the piston rod of the telescopic cylinder (432) is fixedly connected to the disengagement slider (434), the piston rod of the telescopic cylinder (432) pushes the disengagement slider (433) to move vertically up and down, the support seat (435) is provided at the bottom of the mounting cavity (4311) of the mounting frame (431), and the support seat (435) is located directly below the tooling base plate (422) for supporting the tooling base plate (422).

10. The automatic wiping device for the surface of special-shaped parts according to claim 8, characterized in that: The plurality of transmission gears (427) and the plurality of connecting gears (426) are symmetrically arranged on both sides of the output gear (4241) of the rotating motor (424), and the output gear (4241) of the rotating motor (424) is simultaneously engaged with the adjacent transmission gears (427).

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