Automatic surface wiping device for special-shaped parts

Abstract

The application discloses a special-shaped part surface automatic wiping device, which comprises a workbench, a moving mechanism, a wiping mechanism and a rotary clamping mechanism installed on the workbench, the moving mechanism comprises vertical and horizontal moving assemblies, and vertical and horizontal movements of the wiping mechanism are realized; the wiping mechanism comprises cloth roll driving, tensioning and flexible profiling assemblies, the part surface is wiped through dust-free cloth, and the flexible profiling assembly ensures that the dust-free cloth is profiled and attached to the outer surface of the part; the rotary clamping mechanism comprises clamping and rotating assemblies, the clamping assembly clamps the part through a high-precision collet, and the rotating assembly drives the part to rotate. The device can realize automatic wiping of the special-shaped part surface, improve wiping efficiency and quality, and has strong adaptability.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to an automatic wiping device for the surface of irregularly shaped parts. Background Technology

[0002] In modern industrial production systems, the application of irregularly shaped parts is constantly expanding, from complex titanium alloy structural components in the aerospace field and irregularly shaped engine parts in the automotive industry to miniature irregularly 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, and their surface cleanliness directly affects product performance and service life. However, current surface cleaning processes still face many technical challenges that urgently need to be addressed.

[0003] Traditional wiping methods are primarily manual, resulting in significant shortcomings in efficiency and quality. Manual wiping relies on the operator's experience and physical strength, leading to low cleaning efficiency and difficulty in ensuring consistent cleaning results. Even within the same batch of parts, variations in wiping pressure and dwell time can cause fluctuations in surface residue, resulting in large deviations. Prolonged operation can further degrade cleaning quality due to operator fatigue, and may even lead to secondary contamination of the parts' surface by sweat and grease from the hands. More seriously, using hard wiping materials during manual operation can easily scratch thin walls and sharp corners of irregularly shaped parts, causing damage that can even render the parts unusable.

[0004] Meanwhile, the negative impact of residual impurities on subsequent processes far exceeds expectations. Contaminants such as cutting fluid residue, metal shavings, and dust adhering to the surface of parts can lead to accelerated wear on mating surfaces during assembly, increased equipment noise, and shortened service life. In the coating process, particulate impurities can cause defects such as coating bubbles and peeling, resulting in high rework rates and significantly extended production cycles. For irregularly shaped parts involving sealing performance, such as irregularly shaped valve blocks in hydraulic systems, residual oil on the surface can accelerate the aging of seals, leading to leakage risks.

[0005] The technological limitations of existing automated wiping devices further highlight the industry's predicament. Regarding blind spots in cleaning, the rigid wiping arms of traditional devices cannot reach deep holes or internal corners of irregularly shaped parts, while the flexible wiping heads are prone to deviation due to a lack of precise guidance. In terms of compatibility, existing equipment is mostly customized for specific parts models. When switching to parts with significantly different diameters or shapes, the robotic arm trajectory needs to be readjusted and the wiping components replaced, resulting in lengthy replacement times.

[0006] In conclusion, with the increasing demands for surface quality of irregularly shaped parts in the high-end manufacturing sector, developing a surface wiping device that can balance adaptability to complex structures, compatibility with multiple models, and high cleaning efficiency has become the key to breaking through production bottlenecks and ensuring product quality. Summary of the Invention

[0007] This invention addresses the problems of slow wiping efficiency, low cleanliness, and poor compatibility of irregularly shaped parts by providing an automatic wiping device for irregularly shaped parts with high wiping efficiency, high cleanliness, and high compatibility.

[0008] This invention provides the following technical solution: an automatic wiping device for the surface of irregularly shaped parts, comprising a worktable, a wiping mechanism, and a rotating clamping mechanism mounted on the worktable. The moving mechanism includes 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 reciprocating movement of the wiping mechanism. The wiping mechanism includes a cloth roll driving component, a tensioning component, and a flexible contouring component. The cloth roll driving component includes an unwinding wheel, a winding wheel, a winding motor, a connecting wheel, and a cleanroom cloth roll. The cleanroom cloth roll is mounted on the unwinding wheel, and the cleanroom cloth of the cleanroom cloth roll is wound onto the winding wheel via the connecting wheel. The winding motor drives the winding wheel to rotate for winding. The tensioning component is used to tension the cleanroom cloth. The cleanroom cloth between the unwinding wheel and the winding wheel is the wiping work area. The flexible contouring component is located directly above the cleanroom cloth in the wiping work area. The flexible contouring component is used to press the cleanroom cloth in the wiping work area onto the outer surface of the part and perform contouring fitting. The rotating clamping mechanism includes a clamping component and a rotating component. The clamping component includes several high-precision collets for clamping the part. The high-precision collets are arranged along the length of the cleanroom cloth and are located directly below the cleanroom cloth in the wiping work area. The rotating component is used to drive the high-precision collets 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 fabric roll driving component, and the tensioning component are all fixed on the horizontal fixed plate. 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 contouring component, and the first connecting wheel is located to the left of the second connecting wheel. The tensioning component includes a tensioning wheel, which is located between the first connecting wheel and the second connecting wheel. The cleanroom cloth roll passes sequentially through the unwinding wheel, the first connecting wheel, the tensioning wheel, the second connecting wheel, the third connecting wheel, and the take-up wheel.

[0011] In some embodiments, the tensioning assembly includes a tensioning elastic element and a connecting plate. A tensioning wheel is disposed above the connecting wheel. A horizontal fixed plate has an arcuate groove for the tensioning wheel to slide. The connecting plate is installed on the rear side of the horizontal fixed plate. A connecting rod is fixed at the central shaft of the tensioning wheel. The connecting rod is fixedly connected to one end of the connecting plate through the arcuate groove. The other end of the connecting plate is hinged to the back 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 the tensioning elastic element.

[0012] In some embodiments, the fabric roll drive assembly includes an unwinding motor that drives an unwinding wheel to unwind the fabric. A height sensor is provided on the connecting rod. A take-up motor drives a take-up wheel to take up the fabric. The unwinding wheel acts as a driven wheel to unwind the fabric. Under the tension of the cleanroom cloth, the tension wheel slides to the lowest point of the arc groove. The height sensor senses the height position of the lowest point, causing the take-up motor to stop running and starting the unwinding motor to drive the unwinding wheel to unwind the fabric. When the tension 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 running.

[0013] In some embodiments, the vertical fixing plate is provided with mounting holes for mounting a flexible contouring component. The flexible contouring component includes a pressure head, a pressure rod seat, an outer spring, a mounting base, and a limiting block. The pressure head is fixed to the lower end of the pressure rod seat by bolts. The lower end face of the pressure head is provided with a contouring groove that matches the shape of the outer surface of the part. The mounting base is fixed directly below the mounting hole. The center hole of the mounting base is coaxial with the mounting hole. The pressure rod seat is sequentially inserted into the center of the mounting hole and the center of the mounting base. The pressure rod seat can slide vertically up and down. The upper end of the pressure rod seat is fixedly connected to a limiting block, which is located above the mounting hole. A retaining ring protrudes outward from the outer side wall of the lower end of the pressure rod seat. An outer spring is sleeved on the pressure rod seat. The two ends of the outer spring abut against the lower end face of the mounting base and the upper end face of the retaining ring, respectively.

[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 on the upper end face of the pressure rod seat. The blind hole includes a first inner hole. A profiling needle is placed inside the first inner hole. The needle part of the profiling needle is consistent with the shape of the hole on the upper wall of the part. A through hole is provided at the lower end of the first inner hole for the needle part of the profiling needle to pass through. A locking screw is threaded to the upper end of the first inner hole. An inner spring is provided between the locking screw and the profiling needle. The two ends of the inner spring abut against the lower end face of the locking screw and the upper end face of the profiling needle, respectively.

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

[0016] In some embodiments, the rotary clamping mechanism includes a release assembly, which includes a mounting frame, a telescopic cylinder, a release slide, a release slider, and a support base. The mounting cavity of the mounting frame accommodates a tooling base plate. Release sliders are symmetrically fixed on the left and right sides of the tooling base plate. The release slide is installed on the inner wall of the accommodating cavity of the mounting frame. The release slide and the release slider are configured to cooperate with each other. The telescopic cylinder is fixed on the mounting frame and is located directly above the release slider. The piston rod of the telescopic cylinder is fixedly connected to the release slider. The piston rod of the telescopic cylinder pushes the release slide to move vertically up and down. The support base is located at the bottom of the mounting cavity of the mounting frame and is located directly below the tooling base plate to support 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 the output gear of the rotary motor, and the output gear of the rotary motor simultaneously meshes with the adjacent transmission gears.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] 1. All-round fit to irregular structures, no cleaning dead corners; The flexible contouring component fits the outer surface of the part through the contouring groove of the pressure head, and with the elastic pressure of the outer spring, it ensures close contact with irregular curved surfaces; The contouring needle design specifically solves the cleaning problems of small holes, dents and other details. The shape of the contouring needle matches the shape of the hole and dent, and the inner spring provides gentle micro-pressure, so that the needle can accurately probe and fit the inner wall, achieving full-dimensional coverage from the outer surface to the fine structure.

[0020] 2. The cleanliness and tension of the lint-free cloth are stable, ensuring cleaning quality; the cloth roll drive component enables automatic unwinding or rewinding of the lint-free cloth, and the used dirty cloth is recycled in real time to avoid secondary pollution; the tensioning component dynamically adjusts the cloth tension through the linkage of tensioning wheel, arc groove and sensor to ensure stable wiping pressure and strong consistency of cleaning effect.

[0021] Third, simultaneous operation of multiple parts significantly improves efficiency; the rotary clamping mechanism uses multiple high-precision collets to clamp parts in parallel, and achieves synchronous rotation of the high-precision collets through gear transmission, enabling simultaneous cleaning of batches of parts and greatly improving industrial production efficiency.

[0022] IV. Modular design enhances versatility and adapts to diverse needs; the pressure head is detachably connected to the pressure rod seat via bolts, and the contour needle can be replaced by removing the locking screw, which can quickly adapt to the outer surface of parts of different shapes and small holes and recessed structures, flexibly meeting the cleaning needs of diverse irregular parts.

[0023] V. Full-process automation reduces reliance on manual labor; integrates horizontal or vertical movement, roll start / stop, tension adjustment, parts rotation and cleaning, and the cooperation between the detachment component and the moving mechanism to achieve automated control of parts picking and placing, etc. No manual intervention is required throughout the process, reducing operational errors, improving production stability, and adapting to the integration of automated production lines. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0027] Figure 3 This is a schematic diagram of the structure of the horizontal moving component of the present invention;

[0028] Figure 4 This is a schematic diagram of the vertical movement component of the present invention;

[0029] Figure 5 This is a schematic diagram of the tensioning assembly of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the flexible contouring component of the present invention;

[0031] Figure 7 This is a cross-sectional view of the flexible contouring component of the present invention.

[0032] Figure 8 This is a schematic diagram of the rotating clamping mechanism of the present invention;

[0033] Figure 9 This is a schematic diagram of the vertical fixing plate of the present invention.

[0034] In the diagram: 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 drive assembly; 311. Unwinding wheel; 312. Rewinding wheel; 313. Rewinding motor; 314. First connecting wheel; 315. Second connecting wheel; 316. Third connecting wheel; 317. Cleanroom cloth roll; 318. Unwinding motor; 319. Height sensor; 32. Tensioning assembly; 321. Tensioning wheel; 322. Tensioning elastic element; 323. Connecting plate; 324. Connecting rod; 325. Reset protrusion; 33. Flexible contouring assembly; 331 3311. Press head; 332. Contouring groove; 333. Press rod seat; 3321. Retaining ring; 3322. First inner hole; 3323. Through hole; 3324. Second inner hole; 333. Outer spring; 334. Mounting base; 335. Limiting block; 336. Contouring pin; 337. Locking screw; 338. Inner spring; 4. Rotary clamping mechanism; 41. Clamping assembly; 411. High-precision collet; 42. Rotary assembly Components; 421, fixed base; 422, tooling base plate; 4221, receiving cavity; 423, rotating rod; 424, rotary motor; 4241, output gear; 425, bearing; 426, connecting gear; 427, transmission gear; 43, disengagement assembly; 431, mounting bracket; 4311, mounting cavity; 432, telescopic cylinder; 433, disengagement slide; 434, disengagement slider; 435, support base. Detailed Implementation

[0035] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0036] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one 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 aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0038] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0040] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0041] Please see Figure 1-2As shown in this embodiment: an automatic wiping device for the surface of irregularly shaped parts includes a worktable 1. The worktable 1 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 vertical up-and-down movement of the wiping mechanism 3, and the horizontal moving component 21 is used for the horizontal back-and-forth reciprocating movement of the wiping mechanism 3. The wiping mechanism 3 includes a cloth roll driving component 31, a tensioning component 32, and a flexible contouring component 33. The cloth roll driving component 31 includes an unwinding wheel 311, a winding wheel 312, a winding motor 313, a connecting wheel, and a cleanroom cloth roll 317. The cleanroom cloth roll 317 is mounted on the unwinding wheel 311, and the cleanroom cloth of the cleanroom cloth roll 317 is wound up by the connecting wheel and then wound up by the winding wheel. On 312, the take-up motor 313 drives the take-up wheel 312 to rotate for take-up. The tensioning component 32 is used to tension the cleanroom cloth. The cleanroom cloth between the unwind wheel 311 and the take-up wheel 312 is the wiping work area. The flexible contouring component 33 is located directly above the cleanroom cloth in the wiping work area. The flexible contouring component 33 is used to press the cleanroom cloth in the wiping work area onto the outer surface of the part and perform contouring fitting. The rotating clamping mechanism 4 includes a clamping component 41 and a rotating component 42. The clamping component 41 includes several high-precision collets 411 for clamping the part. The several high-precision collets 411 are arranged along the length direction of the cleanroom cloth and are located directly below the cleanroom cloth in the wiping work area. The rotating component 42 is used to drive the several high-precision collets 411 to rotate.

[0042] In some embodiments, such as Figures 3-4As shown, the horizontal moving assembly 21 includes a horizontal drive motor 211, a horizontal slide 212, and a horizontal fixed plate 213. The horizontal drive motor 211 drives the horizontal fixed plate 213 to move on the horizontal slide 212. The vertical moving assembly 22 includes a vertical drive motor 221, a vertical slide 222, and a vertical fixed plate 223. The vertical drive motor 221 drives the vertical fixed plate 223 to move vertically on the vertical slide 222. The vertical moving assembly 22, the fabric roll driving assembly 31, and the tensioning assembly 32 are all fixed on the horizontal fixed plate 213. The flexible contouring assembly 33 is fixed on the vertical fixed plate 223. It should be noted that the horizontal moving assembly 21 and the vertical moving assembly 22 adopt a separate drive structure. The horizontal drive motor 211 independently controls the horizontal movement of the horizontal fixed plate 213, and the vertical drive motor 221 independently drives the vertical movement of the vertical fixed plate 223. The precise linkage control of the wiping mechanism 3 in the horizontal and vertical directions significantly improves the alignment accuracy between the wiping work area and the surface of the part. Simultaneously, the vertical movement component 22, the cloth roll drive component 31, and the tensioning component 32 are integrated and fixed to the horizontal fixed plate 213, while the flexible contouring component 33 is separately fixed to the vertical fixed plate 223. This ensures the coordination of the movement of each component and simplifies the overall structural layout through modular integration, reducing the space occupied by the equipment. Furthermore, the guiding effect of the horizontal slide 212 and the vertical slide 222 effectively reduces vibration and offset during movement, ensuring that the lint-free cloth maintains a stable tension and adhesion pressure throughout the wiping process, thereby improving the uniformity and consistency of wiping the surface of irregularly shaped parts. This structural design also facilitates flexible adjustment of the horizontal and vertical movement parameters according to the wiping requirements of irregularly shaped parts of different specifications, enhancing the adaptability and practical value of the equipment.

[0043] 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 lead 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 lead screw transmission.

[0044] In some embodiments, such as Figures 1-2As shown, the connecting wheels include a first connecting wheel 314, a second connecting wheel 315, and a third connecting wheel 316, all three 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 contouring component 33, and the first connecting wheel 314 is located to the left of the second connecting wheel 315. The tensioning component 32 includes a tensioning wheel 321, located between the first connecting wheel 314 and the second connecting wheel 315. The cleanroom wipe roll 317 passes sequentially 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 take-up wheel 312. It should be noted that the three connecting wheels are arranged on the same horizontal plane to ensure that the cleanroom wipe remains horizontal during transport, avoiding damage caused by uneven movement. 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 contouring component 33, which can make the wiping work area of ​​the cleanroom cloth form a stable horizontal support section. When the flexible contouring component 33 is pressed down, the support section can be evenly stressed and closely fit the surface of the part, effectively improving the consistency of wiping contact; the first connecting wheel 314 and the tensioning wheel 321 are positioned to the left of the second connecting wheel 315, so that the cleanroom cloth passes through the tensioning wheel 321 to adjust the tension before entering the wiping area. This can not only compensate for the tension fluctuation of the cleanroom cloth in real time during the winding and unwinding process through the tensioning wheel 321, but also avoid the problem of poor contact caused by the looseness of the cleanroom cloth during wiping by using the pre-tensioning effect of this path.

[0045] In some embodiments, such as Figure 5As shown, the tensioning assembly 32 includes a tensioning elastic element 322 and a connecting plate 323. A tensioning wheel 321 is positioned above the connecting wheel. A horizontal fixed plate 213 has an arc-shaped groove 2131 for sliding the tensioning wheel 321. The connecting plate 323 is installed on the rear side of the horizontal fixed plate 213. A connecting rod 324 is fixed at the central axis of the tensioning wheel 321. The connecting rod 324 is fixedly connected to one end of the connecting plate 323 via the arc-shaped groove 2131. The other end of the connecting plate 323 is hinged to the back of the horizontal fixed plate 213. A reset protrusion 325 is installed on the horizontal fixed plate 213, located above the tensioning wheel 321. The reset protrusion 325 and the connecting rod 324 are connected by the tensioning elastic element 322. It should be noted that the tensioning assembly 32 provides an arc-shaped sliding trajectory for the tensioning wheel 321 through the arc-shaped groove 2131, which, in conjunction with the hinge structure of the connecting plate 323 and the tensioning elastic element... The elastic tension of 322 forms an adaptive tension adjustment mechanism. When the length of the cleanroom cloth changes due to unwinding and rewinding, the tension wheel 321 can slide flexibly along the arc groove 2131. The tension fluctuation is automatically compensated by the extension and retraction of the tension elastic element 322, ensuring that the cleanroom cloth always maintains a stable tension. This avoids poor adhesion during wiping due to excessive looseness or damage to the cleanroom cloth due to excessive tightness. The hinge design between the connecting plate 323 and the horizontal fixed plate 213 converts the sliding of the tension wheel 321 into rotation around the hinge point, reducing rigid friction between components, reducing mechanical loss, and improving the smoothness of tension adjustment. This design does not require complex electronic control adjustment. Dynamic tension balance can be achieved through mechanical structure alone. This simplifies the control logic and provides continuous and uniform tension to the cleanroom cloth during wiping, ensuring its close adhesion to the surface of the part, thereby improving the stability of the wiping effect on the surface of irregularly shaped parts.

[0046] In some embodiments, such as Figures 1-5As shown, the fabric roll drive assembly 31 includes an unwinding motor 318, which drives the unwinding wheel 311 to unwind the fabric. A height sensor 319 is mounted on the connecting rod 324. A take-up motor 313 drives the take-up wheel 312 to take up the fabric. The unwinding wheel 311 acts as a driven wheel for unwinding. Under the tension of the cleanroom cloth, the tension wheel 321 slides to the lowest point of the arc groove 2131. The height sensor 319 senses the height position, causing the take-up motor 313 to stop and the unwinding motor 318 to start driving the unwinding wheel 311 to unwind the fabric. The unwinding continues until the tension wheel 321 slides to the highest point of the arc groove 2131. The height sensor 319 senses the height position and the unwinding motor 318 stops. When the 18th cycle stops, it should be noted that this structure uses a height sensor 319 to monitor the position of the tension roller 321 within the arc-shaped groove 2131 in real time, achieving intelligent linkage control between the unwinding motor 318 and the take-up motor 313: when the tension roller 321 slides to the lowest point of the arc-shaped groove 2131 due to increased tension from the cleanroom cloth, the height sensor 319 triggers the take-up motor 313 to stop and the unwinding motor 318 to start unwinding, preventing the cleanroom cloth from breaking due to excessive tension; when the tension roller 321 slides to the highest point of the arc-shaped groove 2131 as the unwinding loosens, the sensor controls the unwinding motor 318 to stop, ensuring that the cleanroom cloth always maintains appropriate tension. This automatic adjustment mechanism requires no manual intervention, ensuring stable adhesion between the cleanroom cloth and the surface of the parts, and preventing damage to the cloth roll due to abnormal tension. This significantly improves the stability and continuity of the wiping process. At the same time, the unwinding wheel 311, as the driven wheel, works with the winding wheel 312 to actively wind up the cloth. Combined with the active feeding of the unwinding motor 318, the conveying rhythm of the cleanroom cloth is precisely matched with the wiping requirements, further improving the automation level and operational reliability of the equipment.

[0047] In some embodiments, such as Figures 6-9As shown, the vertical fixing plate 223 is provided with mounting holes 2231 for mounting the flexible contouring component 33. The flexible contouring component 33 includes a pressure head 331, a pressure rod seat 332, an outer spring 333, a mounting base 334, and a limiting block 335. The pressure head 331 is fixed to the lower end of the pressure rod seat 332 by bolts. The lower end face of the pressure head 331 is provided with a contouring groove 3311 that matches the shape of the outer surface of the part. The mounting base 334 is fixed directly below the mounting hole 2231, and the center hole of the mounting base 334 is perpendicular to the mounting hole 2231. The pressure rod seat 332 is coaxially arranged and sequentially inserted into the center of the mounting hole 2231 and the mounting base 334. The pressure rod seat 332 can slide vertically up and down. A limit block 335 is fixedly connected to the upper end of the pressure rod seat 332, located above the mounting hole 2231. A retaining ring 3321 protrudes outward from the lower outer wall surface of the pressure rod seat 332. An outer spring 333 is sleeved on the pressure rod seat 332, with both ends of the outer spring 333 abutting against the lower end face of the mounting base 334 and the upper end face of the retaining ring 3321, respectively. It should be noted that... Clearly, the contour groove 3311 on the lower end face of the pressure head 331 perfectly matches the shape of the outer surface of the part. Combined with the vertical sliding characteristics of the pressure rod seat 332, it can adaptively adjust the contact posture according to the surface contour of the part. The outer spring 333 applies continuous elastic pressure to the pressure rod seat 332 through the retaining ring 3321, which not only ensures the tight fit between the lint-free cloth and the surface of the part, but also buffers the pressure through spring deformation when there are slight dimensional deviations in the part, avoiding scratches on the surface of the part. The pressure head 331 is detachably connected by bolts, which facilitates quick replacement of the appropriate pressure head 331 for different shaped parts, significantly improving the versatility of the equipment. The coaxial setting of the mounting base 334 and the mounting hole 2231 ensures the perpendicularity of the pressure rod seat 332 during the sliding process, reduces the offset error during the wiping process, and further ensures the uniformity of wiping. This structure takes into account the dual advantages of rigid positioning and flexible buffering, effectively solving the problem of wiping blind spots caused by the irregular shape of the surface of the part, while reducing the stringent requirements for the clamping accuracy of the part, and improving the operational stability and applicability of the equipment.

[0048] In some embodiments, such as Figures 6-7As shown, a blind hole is provided at the central axis of the pressure rod seat 332. The opening of the blind hole is located on the upper end face of the pressure rod seat 332. The blind hole includes a first inner hole 3322, in which a contour pin 336 is placed. The shape of the pin 336 matches the shape of the hole on the upper wall of the part. The lower end of the first inner hole 3322 has a through hole 3323 for the pin 336 to pass through. A locking screw 337 is threaded to the upper end of the first inner hole 3322. An inner spring 338 is provided between the locking screw 337 and the contour pin 336. The two ends of the inner spring 338 abut against the lower end face of the locking screw 337 and the upper end face of the contour pin 336, respectively. It should be noted that by adapting the shape of the contour pin 336 to the hole on the upper wall of the part, it can accurately fit the inner wall of the hole and the surrounding area of ​​the hole, solving the problem of uneven wiping around the hole structure of irregularly shaped parts. This system achieves simultaneous, all-around cleaning of the outer surface and hole structure of the parts. The elastic support of the inner spring 338 gives the profiling pin 336 a certain buffering and adjustment capability, which can automatically adjust the extension and retraction amount according to the depth of the hole or slight size differences, avoiding rigid contact that could scratch or deform the hole wall of the part. At the same time, it ensures that the profiling pin 336 and the inner wall of the hole always maintain appropriate contact pressure, improving the wiping effect. In addition, the threaded connection design of the locking screw 337 facilitates quick replacement of profiling pins 336 of different specifications. Combined with the outer spring 333 to achieve the outer surface profiling function, it forms a dual adaptation structure in which the profiling pin 336 fits in the outer profiling groove 3311, greatly enhancing the equipment's adaptability to complex and irregularly shaped parts. This modular design also simplifies the maintenance process, reduces the debugging cost for different parts, and further enhances the practical value and operational flexibility of the equipment.

[0049] It should be noted that the blind hole includes a second inner hole 3324, which is located above the first inner hole 3322, and the inner diameter of the second inner hole 3324 is larger than that of the first inner hole 3322.

[0050] In some embodiments, such as Figure 8As shown, the rotating assembly 42 includes a fixed base 421, a tooling base plate 422, a rotating rod 423, a rotary motor 424, a bearing 425, a connecting gear 426, and a transmission gear 427. A high-precision collet 411 is fixed to the fixed base 421. The connecting gear 426 and the transmission gear 427 are housed within the accommodating cavity 4221 of the tooling base plate 422. The fixed base 421 is positioned above the tooling base plate 422. The two ends of the rotating rod 423 are connected to the fixed base 421 and the transmission gear 427, respectively. The rotating rod 423 is connected to the tooling base plate 422 via the bearing 425. The transmission gear 427, the rotating rod 423, and the fixed base 421 are coaxially arranged. Adjacent transmission gears 427 are meshed and driven by the connecting gear 426. The rotary motor 424 is located below the tooling base plate 422. In this design, the output gear 4241 of the rotary motor 424 meshes with the transmission gear 427. It should be noted that adjacent transmission gears 427 mesh with the connecting gear 426. This, combined with the design of the rotary motor 424's output gear 4241 directly driving the transmission gear 427, forms a stable transmission chain. This ensures that multiple high-precision collets 411 rotate synchronously, avoiding uneven wiping of parts due to speed differences. This is especially suitable for batch wiping of irregularly shaped parts in the same batch. The transmission gear 427, the rotating rod 423, and the fixed base 421 are coaxially arranged. Combined with the support of the bearing 425 for the rotating rod 423, the concentricity of the rotation process is greatly improved, effectively reducing the radial runout of the parts during rotation, ensuring the adhesion stability between the outer surface of the parts and the lint-free cloth, and thus improving the wiping accuracy.

[0051] In some embodiments, such as Figure 8As shown, the rotating clamping mechanism 4 includes a release assembly 43, which includes a mounting frame 431, a telescopic cylinder 432, a release slide 433, a release slider 434, and a support base 435. The mounting cavity 4311 of the mounting frame 431 accommodates a tooling base plate 422. Release sliders 434 are symmetrically fixed on the left and right sides of the tooling base plate 422. The release slide 433 is installed on the inner wall of the accommodating cavity 4221 of the mounting frame 431, and the release slide 433 cooperates with the release slider 434. The telescopic cylinder 432 is fixed on the mounting frame 431, located directly above the release slider 434. The piston rod of the telescopic cylinder 432 is fixedly connected to the release slider 434, and the piston rod of the telescopic cylinder 432 pushes the release slide 433 to move vertically up and down. The support base 435 is located at the bottom of the mounting cavity 4311 of the mounting frame 431, and is located on the tooling base plate 422. The bottom part supports the tooling base plate 422. It should be noted that the release component 43 drives the release slider 434 to move vertically along the release slide 433 via the telescopic cylinder 432, realizing the automated lifting and lowering of the tooling base plate 422 without manual handling and adjustment, which greatly improves the convenience and efficiency of parts loading and unloading. The precise cooperation between the release slide 433 and the release slider 434 provides stable guidance for the lifting and lowering of the tooling base plate 422, effectively avoiding deviation or shaking during the movement, ensuring the accuracy of the high-precision collet 411 and the position of the parts, and reducing wiping errors caused by positioning deviations. When it is necessary to pick up or put down parts, the telescopic cylinder 432 pushes the tooling base plate 422 down to the support seat 435, forming a space that is easy to operate, realizing the quick switching between working state and loading and unloading state. This structural design not only ensures the stability of the equipment during wiping, but also simplifies the parts loading and unloading process and reduces the intensity of manual operation.

[0052] In some embodiments, such 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 rotary motor 424. The output gear 4241 of the rotary motor 424 simultaneously meshes with the adjacent transmission gears 427. It should be noted that the transmission method of the output gear 4241 of the rotary motor 424 simultaneously meshing with the adjacent transmission gears 427 can ensure that the motor power is evenly transmitted to the transmission mechanisms on both sides, effectively avoiding 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 collets 411. This symmetrical structure can reduce the transmission error caused by gear meshing clearance, ensure that all clamped irregular parts maintain a consistent rotation speed, ensure that the wiping force and frequency of each part surface are uniform and consistent, 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 the installation space of the workbench 1, and facilitates the integrated design and maintenance of the equipment.

[0053] Workflow:

[0054] S1. Part clamping: The disengagement component 43 of the rotating clamping mechanism 4 causes the tooling base plate 422 to be supported by the support seat 435, and the irregular part is placed in several high-precision collets 411, which clamp and fix the part.

[0055] S2, Wiping Preparation Stage: The cloth roll drive assembly 31 operates, and the unwinding motor 318 drives the unwinding wheel 311 to release the cleanroom cloth. The cleanroom cloth passes sequentially through the first connecting wheel 314, the tensioning wheel 321, the second connecting wheel 315, and the third connecting wheel 316. The winding motor 313 drives the winding wheel 312 to prepare for winding. In the tensioning assembly 32, the tensioning wheel 321 tensions the cleanroom cloth under the action of the tensioning elastic element 322. If the tensioning wheel 321 slides to the lowest point of the arc groove 2131, the height sensor 319 senses this and stops the winding motor 313, and the unwinding motor 318 starts unwinding until the tensioning wheel 321 slides to the lowest point of the arc groove 2131. 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, moving the wiping mechanism 3 as a whole until the wiping working area of ​​the lint-free cloth is aligned with the position of the clamped part below; the vertical drive motor 221 drives the vertical fixed plate 223 to move vertically on the vertical slide 222, causing the flexible contouring component 33 to move down, so that the contouring groove 3311 on the lower end face of the pressure head 331 presses the lint-free cloth in the wiping working area onto 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.

[0056] S3. Initial wiping stage: The rotary motor 424 of the rotating assembly 42 starts, and its output gear 4241 drives the transmission gear 427 to rotate. Adjacent transmission gears 427 mesh with the connecting gear 426, causing the rotating rod 423 to drive the fixed base 421 and the high-precision collet 411 to rotate, thereby driving the parts to rotate continuously and achieve self-cleaning. After the lint-free cloth has been working for a period of time, the rotary motor 424 stops running, and the piston rod of the telescopic cylinder 432 of the disengagement assembly 43 pushes the disengagement slider 434, causing the tooling base plate 422 to move down, and the parts are disengaged from the lint-free cloth. When the cleanroom cloth comes into contact with the cleanroom cloth, the cloth roll drive assembly 31 continues to work, the take-up motor 313 drives the take-up wheel 312 to rotate and take in the used cleanroom cloth, and the unwind wheel 311, as the driven wheel, releases the new cleanroom cloth accordingly. The tension assembly 32 always keeps the cleanroom cloth in a taut state. After the replacement is completed, the piston rod of the telescopic cylinder 432 drives the part to move upward to contact the cleanroom cloth, and through the flexible contouring assembly 33, relying on the elastic action of the outer spring 333 and the inner spring 338, the pressure head 331 conforms to the outer surface of the part, and the surface is wiped by the relative movement of the part's rotation and the cleanroom cloth.

[0057] S4, Wiping End Stage: 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, the cloth roll drive component 31 continues to work, the winding motor 313 drives the winding wheel 312 to rotate and wind up the used cleanroom cloth, and the unwinding wheel 311, as the driven wheel, releases the new cleanroom cloth for the next wiping; at the same time, in the release component 43 of the rotating clamping mechanism 4, the piston rod of the telescopic cylinder 432 pushes the release slider 434, so that the tooling base plate 422 moves down along the release slide 433 to the support seat 435, and the high-precision collet 411 releases the part, making it easy to remove the part.

[0058] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0059] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic wiping device for the surface of irregularly shaped parts, comprising a worktable (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) includes a vertical moving component (22) and a horizontal moving component (21). The wiping mechanism (3) includes a cloth roll driving component (31) and a tensioning component (32). The tensioning component (32) includes a tensioning wheel (321). The cloth roll driving component (31) includes an unwinding wheel (311), a winding wheel (312), a winding motor (313), and a connecting wheel. The horizontal moving component (21) includes a horizontal fixing plate (213). The tensioning assembly (32) includes a tensioning elastic element (322) and a connecting plate (323). The tensioning wheel (321) is located above the connecting wheel. The horizontal fixing plate (213) has an arc-shaped groove (2131) for sliding of the tensioning wheel (321). 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). One end of the connecting plate (323) is fixedly connected to the arc groove (2131), 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). The reset protrusion (325) is located above the tensioning wheel (321). The reset protrusion (325) and the connecting rod (324) are connected by the tensioning elastic element (322). The fabric 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). The take-up motor (313) drives the take-up wheel (312) to take up. The unwinding wheel (311) acts as a driven wheel for unwinding. The tension wheel (321) slides to the lowest point of the arc groove (2131) under the tension of the cleanroom cloth. The height sensor (319) senses the height position of the lowest point, causing the take-up motor (313) to stop running and start the unwinding motor (318) to drive the unwinding wheel (311) to unwind. When the tension 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.

2. The automatic wiping device for the surface of irregularly shaped parts according to claim 1, characterized in that: The vertical moving component (22) is used for the vertical up-and-down movement of the wiping mechanism (3), and the horizontal moving component (21) is used for the horizontal back-and-forth reciprocating movement of the wiping mechanism (3); the wiping mechanism (3) includes a flexible contouring component (33), and the cloth roll driving component (31) includes a cleanroom cloth roll (317), the cleanroom cloth roll (317) is mounted on the unwinding wheel (311), and the cleanroom cloth of the cleanroom cloth roll (317) is wound up by the connecting wheel. On the winding reel (312), the winding motor (313) drives the winding reel (312) to rotate for winding. The tensioning component (32) is used to tension the cleanroom cloth. The cleanroom cloth between the unwinding reel (311) and the winding reel (312) is the wiping working area. The flexible contouring component (33) is located directly above the cleanroom cloth in the wiping working area. The flexible contouring component (33) is used to press the cleanroom cloth in the wiping working area onto the outer surface of the part and perform contouring fitting.

3. The automatic wiping device for the surface of irregularly shaped parts according to claim 2, characterized in that: The rotating clamping mechanism (4) includes a clamping assembly (41) and a rotating assembly (42). The clamping assembly (41) includes a plurality of high-precision collets (411) for clamping parts. The plurality of high-precision collets (411) are arranged along the length of the cleanroom cloth and are located directly below the cleanroom cloth in the wiping work area. The rotating assembly (42) is used to drive the plurality of high-precision collets (411) to rotate.

4. The automatic wiping device for the surface of irregularly shaped parts according to claim 3, characterized in that: The horizontal moving component (21) includes a horizontal drive motor (211) and a horizontal slide (212). The horizontal drive motor (211) drives the horizontal fixed plate (213) to move on the horizontal slide (212). The vertical moving component (22) includes a vertical drive motor (221), a vertical slide (222), and a vertical fixed plate (223). The vertical drive motor (221) drives the vertical fixed plate (223) to move vertically on the vertical slide (222). The vertical moving component (22), the fabric roll driving component (31), and the tensioning component (32) are all fixed on the horizontal fixed plate (213). The flexible contouring component (33) is fixed on the vertical fixed plate (223).

5. The automatic wiping device for the surface of irregularly shaped parts according to claim 4, 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 contouring component (33). The first connecting wheel (314) is located to the left of the second connecting wheel (315). 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 sequentially 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 take-up wheel (312).

6. The automatic wiping device for the surface of irregularly shaped parts according to claim 4, characterized in that: The vertical fixing plate (223) is provided with mounting holes (2231) for mounting the flexible contouring component (33). The flexible contouring component (33) includes a pressure head (331), a pressure rod seat (332), an outer spring (333), a mounting base (334), and a limiting block (335). The pressure head (331) is fixed to the lower end of the pressure rod seat (332) by bolts. The lower end face of the pressure head (331) is provided with a contouring groove that matches the shape of the outer surface of the part. (3311) The mounting base (334) is fixed directly below the mounting hole (2231). The center hole of the mounting base (334) is coaxial with the mounting hole (2231). The pressure rod seat (332) is inserted into the center of the mounting hole (2231) and the mounting base (334) in sequence. The pressure rod seat (332) can slide vertically up and down. A limit block is fixedly connected to the upper end of the pressure rod seat (332). (335) The limiting block (335) is located above the mounting hole (2231). A retaining ring (3321) protrudes outward from the lower outer side wall of the pressure rod seat (332). An outer spring (333) is sleeved on the pressure rod seat (332). The two ends of the outer spring (333) abut against the lower end face of the mounting seat (334) and the upper end face of the retaining ring (3321), respectively.

7. The automatic wiping device for the surface of irregularly 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 on the upper end face of the pressure rod seat (332). The blind hole includes a first inner hole (3322). A profiling needle (336) is placed inside the first inner hole (3322). The needle part of the profiling needle (336) is consistent with the shape of the hole on the upper wall of the part. A through hole (3323) is provided at the lower end of the first inner hole (3322) for the needle part of the profiling needle (336) to pass through. A locking screw (337) is threadedly connected to the upper end of the first inner hole (3322). The locking screw (337) and the profiling needle (336) are connected to each other. An inner spring (338) is provided between the two ends of the inner spring (338), which abut against the lower end face of the locking screw (337) and the upper end face of the contour pin (336), respectively.

8. The automatic wiping device for the surface of irregularly shaped parts according to claim 3, characterized in that: The rotating assembly (42) includes a fixed base (421), a tooling base plate (422), a rotating rod (423), a rotary motor (424), a bearing (425), a connecting gear (426), and a transmission gear (427). The high-precision collet (411) is fixed on the fixed base (421). The accommodating cavity (4221) of the tooling base plate (422) is provided with the connecting gear (426) and the transmission gear (427). The fixed base (421) is located above the tooling base plate (422). The two ends of the rotating rod (423) are respectively connected to the fixed base (421). The fixed seat (421) and the transmission gear (427) are connected. 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. Adjacent transmission gears (427) are meshed and driven by the connecting gear (426). The rotary motor (424) is located below the tooling base plate (422). The output gear (4241) of the rotary motor (424) is meshed and connected with the transmission gear (427).

9. An automatic wiping device for the surface of irregularly shaped parts according to claim 8, characterized in that: The rotating clamping mechanism (4) includes a release assembly (43), which includes a mounting bracket (431), a telescopic cylinder (432), a release slide (433), a release slider (434), and a support base (435). The mounting cavity (4311) of the mounting bracket (431) accommodates the tooling base plate (422). The tooling base plate (422) is symmetrically fixed with the release slider (434) on the left and right sides respectively. The release slide (433) is installed on the inner wall of the accommodating cavity (4221) of the mounting frame (431). The release slide (433) is configured to cooperate with the release slider (434). The telescopic cylinder (432) is fixed on the mounting frame (431). The telescopic cylinder (432) is located directly above the release slider (434). The piston rod of the telescopic cylinder (432) is fixedly connected to the release slider (434). The piston rod of the telescopic cylinder (432) pushes the release slide (433) to move vertically up and down. The support seat (435) is located at the bottom of the mounting cavity (4311) of the mounting frame (431) and is located directly below the tooling base plate (422) to support the tooling base plate (422).

10. An automatic wiping device for the surface of irregularly shaped parts according to claim 8, characterized in that: A plurality of the transmission gears (427) and a plurality of the connecting gears (426) are symmetrically arranged on both sides of the output gear (4241) of the rotary motor (424), and the output gear (4241) of the rotary motor (424) simultaneously meshes with the adjacent transmission gears (427).

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