Polishing device and method for furniture metal plate

Abstract

The invention relates to the technical field of metal surface treatment, and discloses a polishing device and method.The polishing device for furniture metal plates comprises a rectangular coordinate robot and a polishing mechanism and further comprises a telescopic assembly, and the telescopic assembly comprises a second sliding block and a first sliding block; the wire drawing assembly is fixedly installed on the second sliding block. The driving assembly is fixedly installed on the second sliding block. The synchronous assembly is fixedly installed on the first sliding block. The wire drawing assembly drives a second sliding block to slide up and down along with fluctuation of the surface of a corrugated metal plate, the driving assembly is matched with the synchronizing assembly, a first sliding block is driven to move synchronously through transmission of a gear and a bevel gear, a first spring is stressed evenly all the time, and the pressure of a wire drawing roller acting on the plate is kept constant. Over-deep lines caused by excessive extrusion at wave crests and missed polishing caused by insufficient attachment at wave troughs are avoided, and it is ensured that wire drawing lines on the surface of the whole plate are uniform and coherent.

Description

Technical Field

[0001] This invention belongs to the field of metal surface treatment technology, and particularly relates to a polishing device and method for furniture metal sheets. Background Technology

[0002] Polishing furniture metal sheets is a key process to improve the appearance and durability of furniture. It includes various types such as brushing, mirror polishing, sandblasting, and passivation. Different polishing methods can create different surface effects to suit the design style and usage scenarios of various furniture. Among them, brushing polishing is one of the most commonly used polishing methods for furniture metal sheets because it can form uniform and delicate linear textures on the metal surface, which combines decoration and anti-slip properties.

[0003] In furniture production, in order to enrich the product's shape and decorative layers, in addition to traditional flat metal sheets, corrugated metal sheets with continuous peaks and troughs on the surface are increasingly widely used. Although the three-dimensional structure of this type of sheet can enhance the design of the furniture, it places strict requirements on the compatibility of brushing and polishing equipment.

[0004] Traditional wire drawing and polishing equipment is designed for flat metal sheets. The installation height of its wire drawing components is fixed or can only be manually adjusted within a small range. During processing, uniform wire drawing is achieved by statically adhering the wire drawing components to the flat surface. When applied to corrugated metal sheets, the significant undulations on the surface make traditional equipment completely unsuitable. Even if some equipment allows manual adjustment of the height of the wire drawing components, it cannot dynamically adjust in real time to follow the undulations, requiring frequent machine stops for calibration. This not only results in extremely low processing efficiency but also leads to messy and disjointed wire patterns, severely affecting processing quality. Summary of the Invention

[0005] The purpose of this invention is to provide a polishing device and method for metal sheets in furniture, which solves the technical problem that traditional wire drawing and polishing equipment in the prior art is only suitable for flat plates, with fixed or finely adjustable wire drawing height, and cannot be adapted to corrugated plates.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A polishing device for furniture metal sheets includes a Cartesian robot and a polishing mechanism mounted on the Cartesian robot. The Cartesian robot has a worktable for placing corrugated metal sheets. The polishing mechanism is movably mounted on the Cartesian robot along the worktable and includes: a telescopic component including a second slider and a first slider that can slide up and down; a wire-drawing component fixedly mounted on the second slider for sliding up and down with the surface undulations of the corrugated metal sheet during movement; a drive component fixedly mounted on the second slider; and a synchronization component fixedly mounted on the first slider. The drive component and the synchronization component cooperate to drive the first slider to slide up and down synchronously when the second slider slides up and down with the surface undulations of the corrugated metal sheet for wire drawing, thereby maintaining a constant pressure exerted by the wire-drawing component on the corrugated metal sheet.

[0007] According to some embodiments, the wire drawing assembly includes: a fixing cover, which is fixedly installed on the second slider; and a drive motor, which is fixedly installed inside the fixing cover, with a wire drawing roller fixedly installed on its power output shaft.

[0008] According to some embodiments, the telescopic component further includes: a first sliding frame, fixedly connected to the Cartesian coordinate robot; the synchronization component includes: a second screw, rotatably mounted on the first sliding frame, on which a first bevel gear is fixedly mounted; a fixed frame, fixedly mounted on the first sliding frame, on which a first rotating shaft is rotatably mounted; a second bevel gear, fixedly mounted on the first rotating shaft and meshing with the first bevel gear; and a first gear, fixedly mounted on the first rotating shaft.

[0009] According to some embodiments, the telescopic assembly further includes: a first sliding frame, fixedly mounted on the Cartesian robot and slidably connected to the first slider and the second slider; and a first spring, one end of which is fixedly connected to the first slider and the other end of which is fixedly connected to the second slider.

[0010] According to some embodiments, the telescopic assembly further includes two threaded plates, both of which are fixedly connected to the first slider by bolts, and the threaded plate closer to the second screw is threadedly connected to the second screw.

[0011] According to some embodiments, the telescopic assembly further includes: a slide rod, which is fixedly mounted on the first sliding frame and slidably connected to the threaded plate.

[0012] According to some embodiments, the drive assembly includes: a drive box on which a row of teeth is fixedly mounted; and a drive gear frame slidably mounted on the drive box.

[0013] According to some embodiments, the telescopic assembly further includes two first screws, both rotatably mounted on the second slider, and threadedly connected to the two drive boxes respectively.

[0014] According to some embodiments, the polishing mechanism further includes an adjustment assembly, which includes: an adjustment box, fixedly mounted on the drive box, with a pad fixedly mounted inside; a third slider, slidably mounted on the adjustment box, with a track groove on its surface; a second spring, one end fixedly connected to the third slider and the other end fixedly connected to the pad; a connecting rod, fixedly mounted on the third slider and slidably connected to the pad, and fixedly connected to the drive gear frame; a rotating plate, rotatably mounted on the pad, with a rotating column extending into the track groove rotatably mounted on it; and a second sliding frame, slidably connected to the adjustment box and fixedly connected to the connecting rod.

[0015] A polishing method for a polishing apparatus for furniture metal sheets includes the following steps: Step 1: Fix the metal sheet onto the worktable of the Cartesian coordinate robot; Step 2: Depending on the type of sheet material, adjust the meshing state of the drive box and the first gear by rotating the first screw: If it is a flat plate, bring the two drive boxes close to each other and engage with the first gear to lock the second slider; If it is a corrugated plate, it allows the drive box to engage or disengage from the first gear. Step 3: Start the Cartesian coordinate robot and drive motor to make the wire drawing roller fit against the surface of the sheet and move along the worktable; Step 4: When polishing the corrugated plate, the wire drawing roller moves the second slider along with the surface undulations. The drive component drives the synchronization component through meshing with the first gear, so that the first slider and the second slider slide synchronously. Step 5: Adjust the extension length of the drive gear frame by adjusting the adjustment component, change the displacement ratio of the first slider and the second slider, so that the drawing roller forms differential pressure at the crest and trough of the wave.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The wire drawing assembly of the present invention drives the second slider to slide up and down with the undulation of the corrugated metal plate surface. The driving assembly and the synchronization assembly cooperate with each other and drive the first slider to move synchronously through gear and bevel gear transmission, so that the first spring is always uniformly stressed, maintains the constant pressure of the wire drawing roller on the plate, avoids excessive compression at the crests causing the texture to be too deep, and insufficient adhesion at the troughs causing missed polishing, and ensures that the wire drawing texture on the entire plate surface is uniform and continuous.

[0017] 2. The present invention can adjust the meshing state of the drive box and the first gear by rotating the first screw. When the two drive boxes are close to each other, the wire drawing assembly is fixed, which is suitable for processing flat metal sheets. When the drive boxes are partially engaged, the wire drawing roller forms differentiated pressure at the crests and troughs, producing textures of different depths. When completely disengaged, the wire drawing roller can freely adjust the pressure with the undulations, enriching the wire drawing processing style and adapting to different process requirements.

[0018] 3. The adjustment component of the present invention drives the connecting rod to move by pushing the second sliding frame, which in turn drives the third slider to compress or release the second spring. At the same time, the track groove and the rotating column cooperate to limit the movement, control the extension length and engagement state of the drive gear frame, thereby changing the relative movement ratio of the first slider and the second slider, and adjusting the pressure intensity of the drawing roller on the corrugated metal plate. This can adapt to plates with different undulations and can also form a variety of drawing effects through pressure differentiation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the telescopic component and the wire drawing component in this invention; Figure 3 This is a schematic diagram of the internal structure of the first sliding frame in this invention; Figure 4 This is a schematic diagram of the assembly structure of the wire drawing component in this invention; Figure 5 This is a schematic diagram of the assembly structure of the fixed cover and the slide bar in this invention; Figure 6 In this invention Figure 5 Enlarged schematic diagram of part A; Figure 7 This is a schematic diagram of the assembly structure of the second slider and the driving component in this invention; Figure 8 This is a schematic diagram of the assembly structure of the drive box and the retaining teeth in this invention; Figure 9 In this invention Figure 8 Enlarged schematic diagram of part B; Figure 10 This is a schematic diagram of the internal structure of the adjustment box in this invention.

[0021] Reference numerals: 100, Cartesian coordinate robot; 200, Polishing mechanism; 210, Telescopic assembly; 211, First sliding frame; 212, First slider; 213, First spring; 214, Second slider; 215, First screw; 216, Threaded plate; 217, Slide bar; 220, Wire drawing assembly; 221, Fixing cover; 222, Drive motor; 223, Wire drawing roller; 230, Drive assembly; 231, Drive box; 232, Gear; 23 3. Drive gear frame; 240. Synchronization assembly; 241. Second screw; 242. First bevel gear; 243. First rotating shaft; 244. Second bevel gear; 245. First gear; 246. Fixed frame; 250. Adjustment assembly; 251. Adjustment box; 252. Second sliding frame; 253. Connecting rod; 254. Third slider; 255. Second spring; 256. Pad; 257. Rotating plate; 258. Track groove; 259. Rotating column. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0025] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example 1: As Figures 1 to 10 As shown, a polishing device for furniture metal sheets includes a Cartesian robot 100 and a polishing mechanism 200 mounted on the Cartesian robot 100. The Cartesian robot 100 has a worktable for placing corrugated metal sheets. The polishing mechanism 200 is movably mounted on the Cartesian robot 100 along the worktable and includes a telescopic component 210, a wire drawing component 220, a drive component 230, a synchronization component 240, and an adjustment component 250. The telescopic component 210 is provided with a second slider 214 and a first slider 212 that can slide up and down. The wire drawing assembly 220 is fixedly mounted on the second slider 214. The wire drawing assembly 220 is used to slide up and down with the surface undulation of the corrugated metal plate during movement. The drive assembly 230 is fixedly mounted on the second slider 214. The synchronization assembly 240 is fixedly mounted on the first slider 212. The drive assembly 230 and the synchronization assembly 240 cooperate with each other to drive the first slider 212 to slide up and down synchronously when the second slider 214 slides up and down with the surface undulation of the corrugated metal plate for wire drawing, so as to keep the pressure of the wire drawing assembly 220 acting on the corrugated metal plate constant.

[0029] It should be noted that, firstly, the corrugated metal sheet to be processed is placed on the worktable of the Cartesian coordinate robot 100 to complete the positioning and fixation of the corrugated metal sheet; then, the Cartesian coordinate robot 100 is controlled to drive the polishing mechanism 200 mounted on it to move along the worktable, while the wire drawing component 220 in the polishing mechanism 200 is made to fit against the surface of the corrugated metal sheet; during the wire drawing operation of the polishing mechanism 200 moving along the corrugated metal sheet with the Cartesian coordinate robot 100, the wire drawing component 220 will slide up and down synchronously with the surface undulations of the corrugated metal sheet, and drive the second slider fixedly connected to it. 214 slides up and down; at this time, the drive component 230 fixedly installed on the second slider 214 and the synchronization component 240 fixedly installed on the first slider 212 cooperate with each other to generate a transmission effect when the second slider 214 slides up and down, driving the first slider 212 to slide up and down synchronously with the second slider 214 along the telescopic component 210, thereby maintaining the constant pressure of the wire drawing component 220 on the surface of the corrugated metal plate. The constant pressure can keep the wire drawing component 220 and the surface of the corrugated metal plate in stable contact, ensuring that the wire drawing trajectory is uniform and the wire drawing force is consistent, and avoiding the disorder of the wire drawing pattern caused by pressure changes.

[0030] like Figure 4 As shown, the wire drawing assembly 220 includes a fixed cover 221, a drive motor 222, and a wire drawing roller 223; the fixed cover 221 is fixedly installed on the second slider 214; the drive motor 222 is fixedly installed inside the fixed cover 221, and the wire drawing roller 223 is fixedly installed on the power output shaft of the drive motor 222.

[0031] It should be noted that when the Cartesian coordinate robot 100 moves the polishing mechanism 200 above the corrugated metal plate and makes the wire drawing roller 223 abut against the surface of the corrugated metal plate, the drive motor 222 is used to drive the wire drawing roller 223 to rotate, and the wire drawing operation is performed on the surface of the corrugated metal plate through the wire drawing roller 223; during the wire drawing operation, the wire drawing roller 223 floats up and down with the surface of the corrugated metal plate, and drives the second slider 214 to move up and down synchronously through the fixed cover 221.

[0032] like Figure 5 and Figure 6 As shown, the synchronization component 240 includes a second screw 241, a first bevel gear 242, a first rotating shaft 243, a second bevel gear 244, a first gear 245, and a fixed frame 246. The second screw 241 is rotatably mounted on the first sliding frame 211, and the first bevel gear 242 is fixedly mounted on the second screw 241. The fixed frame 246 is fixedly mounted on the first sliding frame 211, and the first rotating shaft 243 is rotatably mounted on the fixed frame 246. The second bevel gear 244 is fixedly mounted on the first rotating shaft 243, and the second bevel gear 244 meshes with the first bevel gear 242. The first gear 245 is fixedly mounted on the first rotating shaft 243.

[0033] It should be noted that when the wire drawing roller 223 moves along the trajectory of the corrugated metal plate, it will drive the second slider 214 to move up and down continuously. The second slider 214 drives the drive assembly 230 to move. The drive assembly 230 drives the first gear 245 to rotate. The first gear 245 drives the first rotating shaft 243 to rotate. The first rotating shaft 243 drives the second bevel gear 244 to rotate. The second bevel gear 244 drives the first bevel gear 242 to rotate. The first bevel gear 242 drives the second screw 241 to rotate. The second screw 241 is used to cooperate with the drive assembly 230 to realize the synchronous up and down sliding of the first slider 212 and the second slider 214.

[0034] like Figure 2 and Figure 3As shown, the telescopic assembly 210 includes a first sliding frame 211, a first slider 212, a first spring 213, a second slider 214, a first screw 215, a threaded plate 216, and a slide bar 217. The first sliding frame 211 is fixedly mounted on the Cartesian coordinate robot 100, and the first sliding frame 211 is slidably connected to the first slider 212 and the second slider 214. One end of the first spring 213 is fixedly connected to the first slider 212, and the other end of the first spring 213 is fixedly connected to the second slider 214. Both threaded plates 216 are fixedly connected to the first slider 212 by bolts, wherein the threaded plate 216 near the second screw 241 is threadedly connected to the second screw 241.

[0035] It should be noted that when the wire drawing roller 223 moves along the trajectory of the corrugated metal plate, it can drive the second screw 241 to rotate. The rotation of the second screw 241 can drive the threaded plate 216 connected to it to move, thereby driving the first slider 212 to move. When the second slider 214 floats up and down with the corrugated metal plate, the first spring 213 can drive the first slider 212 and the second slider 214 to float synchronously. The threaded engagement between the second screw 241 and the threaded plate 216 can constrain and drive the movement of the first slider 212, ensuring that the first slider 212 and the second slider 214 move synchronously and have consistent displacement, so that the first spring 213 is always under uniform force. This ensures that the pressure exerted by the wire drawing roller 223 on the corrugated metal plate remains constant. Furthermore, by adjusting the connection position between the threaded plate 216 and the first slider 212, the closer the threaded plate 216 is to the top of the first slider 212, the smaller the distance between the first slider 212 and the second slider 214, thus increasing the compression of the first spring 213. Consequently, when the second slider 214 needs to be pushed upward by the corrugated metal plate, the pressure exerted by the first spring 213 on the corrugated metal plate through the wire drawing roller 223 is greater, resulting in a different wire drawing effect. The greater the pressure, the deeper the wire drawing; the lower the pressure, the shallower the wire drawing.

[0036] like Figure 5 As shown, the slide rod 217 is fixedly installed on the first sliding frame 211, and the slide rod 217 is slidably connected to the threaded plate 216.

[0037] It should be noted that the slide bar 217 guides and limits the threaded plate 216, and the threaded plate 216 slides along the slide bar 217 to ensure that the first slider 212 and the second slider 214 move smoothly and without deviation when sliding up and down relative to the first sliding frame 211.

[0038] like Figure 8 As shown, the drive assembly 230 includes a drive box 231, a toothed tooth 232, and a drive gear frame 233; a row of toothed teeth 232 is fixedly installed on the drive box 231; the drive gear frame 233 is slidably installed on the drive box 231.

[0039] It should be noted that when the second slider 214 moves up and down, it will drive the locking teeth 232 and the drive gear 233 to move. Since the locking teeth 232 and the drive gear 233 mesh with the first gear 245, they can drive the first rotating shaft 243 to rotate in both directions, thereby causing the first slider 212 and the second slider 214 to move up and down synchronously.

[0040] like Figure 7 As shown, both first screws 215 are rotatably mounted on the second slider 214, and the two first screws 215 are threadedly connected to the two drive boxes 231 respectively.

[0041] It should be noted that by rotating the two first screws 215, the drive boxes 231 threadedly connected to the two first screws 215 are brought closer to each other. In this way, the two locking teeth 232 and the drive gear 233 will mesh with the first gear 245. As a result, the second slider 214 will be unable to move up and down and will be fixed in its original position. Thus, the second slider 214 can perform surface brushing on the flat metal plate.

[0042] Furthermore, by rotating the two first screws 215, one drive box 231 can be positioned closer to the first gear 245 and the other further away. When the second slider 214 moves upward, it will cause the retaining teeth 232 and the drive gear frame 233 to move upward, thereby driving the first gear 245 to rotate. When the retaining teeth 232 and the drive gear frame 233 drive the first gear 245 to rotate clockwise, they will simultaneously drive the second screw 241 to rotate clockwise. This causes the first slider 212 and the second slider 214 to move upward synchronously, thus ensuring that the pressure of the drawing roller 223 on the corrugated metal plate remains constant, guaranteeing a uniform drawing trajectory and consistent drawing force. Conversely, when the retaining teeth 232 and the drive gear frame 233 drive the first gear 245... When rotated counterclockwise, the second screw 241 is simultaneously driven to rotate counterclockwise, causing the first slider 212 and the second slider 214 to move closer to each other as the corrugated metal plate protrudes and return to their original positions as the corrugated metal plate reclines. This allows the wire drawing roller 223 to receive greater pressure at the crests of the corrugated plate, forming deeper and coarser wire drawing lines; while the pressure decreases at the troughs, forming shallower and finer lines. This differentiated processing method, which matches the undulating contours of the metal sheet, can enhance the three-dimensional visual effect of the metal sheet surface. In particular, regardless of whether the first gear 245 rotates clockwise or counterclockwise, the wire drawing effect at each crest of the corrugated metal sheet can remain consistent, and the wire drawing effect at each trough can also remain consistent, avoiding a messy wire drawing effect.

[0043] Furthermore, by rotating the two first screws 215, the two drive components 230 can be prevented from contacting the first gear 245. In this way, the second slider 214 will drive the wire drawing roller 223 to move up and down according to the undulating structure of the corrugated metal plate. This causes the wire drawing roller 223 to generate different clamping forces at different height positions of the corrugated metal plate, thereby forming wire drawing textures of different depths and thicknesses on the surface of the corrugated metal plate. This enriches the wire drawing processing styles, meets various appearance wire drawing process requirements, and can also change the overall wire drawing effect according to the height of the undulating structure of the corrugated metal plate.

[0044] like Figure 9 and Figure 10 As shown, the adjustment assembly 250 includes an adjustment box 251, a second sliding frame 252, a connecting rod 253, a third slider 254, a second spring 255, a pad 256, a rotating plate 257, a track groove 258, and a rotating column 259. The adjustment box 251 is fixedly mounted on the drive box 231, and the pad 256 is fixedly mounted inside the adjustment box 251. The third slider 254 is slidably mounted on the adjustment box 251, and a track groove 258 is formed on the surface of the third slider 254. One end of the second spring 255 is connected to the third slider 256. 4. Fixed connection: the other end of the second spring 255 is fixedly connected to the pad 256; the connecting rod 253 is fixedly installed on the third slider 254, the connecting rod 253 is slidably connected to the pad 256, and the connecting rod 253 is fixedly connected to the drive gear 233; the rotating plate 257 is rotatably installed on the pad 256, and a rotating column 259 extending into the track groove 258 is rotatably installed on the rotating plate 257; the second sliding frame 252 is slidably connected to the adjustment box 251, and the second sliding frame 252 is fixedly connected to the connecting rod 253.

[0045] It should be noted that by pushing the second sliding frame 252, the second sliding frame 252 drives the connecting rod 253 to move, the connecting rod 253 drives the third slider 254 to move, the third slider 254 drives the second spring 255 to extend and retract, the connecting rod 253 slides along the pad 256 and drives the drive gear 233 to move; when the third slider 254 moves, it drives the track groove 258 to move, the track groove 258 drives the rotating column 259 to rotate, the rotating column 259 limits the third slider 254, thereby controlling the state of the drive gear 233. When the drive gear 233 partially moves out of the drive box 231 and is aligned with the retaining tooth 232, the drive box 231 will drive the first gear 245 to rotate together with the drive gear 233, so that the second slider 214 and the first slider 212 can move synchronously. When the drive gear 233 is completely inside the drive box 231, only the retaining tooth 232 drives. The first gear 245 rotates, causing the second slider 214 to move upwards. The first slider 212 can only move half a distance synchronously. This adjusts the pressure of the drawing roller 223 on the undulating structure of the corrugated metal plate, resulting in a change in the drawing effect. Different drawing effects can be obtained. The above describes the situation where the second slider 214 moves upwards and the second screw 241 rotates clockwise, causing the first slider 212 to move upwards. However, when the drive assembly 230 is adjusted, the second slider 214 moves upwards, and the second screw 241 rotates counterclockwise, causing the first slider 212 to move downwards by half a distance. This changes the pressure of the drive gear 233 on the undulating structure of the corrugated metal plate, further altering the drawing effect. Different undulating structures of different corrugated metal plates will produce different drawing effects, allowing for different drawing effects to be directly adapted to the corrugated metal plate itself.

[0046] The working principle of this embodiment: The metal sheet to be processed is fixed on the worktable of the Cartesian coordinate robot 100, and the polishing mechanism 200 is adjusted according to the type of sheet: If it is a flat metal plate, rotate the first screw 215 to drive the two drive boxes 231 to move closer to each other, so that the locking teeth 232 on the drive box 231 and the drive gear 233 both mesh with the first gear 245, locking the second slider 214 and ensuring that the height of the wire drawing assembly 220 is fixed.

[0047] If it is a corrugated metal plate, rotating the first screw 215 causes the drive box 231 to partially engage or completely disengage from the first gear 245, adapting to subsequent dynamic pressure adjustment requirements; the extension length of the drive gear 233 can be adjusted by adjusting the component 250: pushing the second sliding frame 252 drives the connecting rod 253 and the third slider 254 to move, compressing or releasing the second spring 255; the track groove 258 cooperates with the rotating column 259 to limit the movement, control the engagement state of the drive gear 233, and change the displacement ratio of the first slider 212 and the second slider 214.

[0048] The Cartesian coordinate robot 100 is started to drive the polishing mechanism 200 to move along the worktable, and the drive motor 222 of the wire drawing component 220 is started simultaneously, driving the wire drawing roller 223 to rotate and apply wire drawing to the surface of the board.

[0049] When processing the corrugated board, the wire drawing roller 223 moves the second slider 214 up and down with the surface undulation, and the drive assembly 230 moves synchronously: the cleat 232 meshes with the drive gear frame 233 to engage the first gear 245, driving the first rotating shaft 243 and the second bevel gear 244 to rotate; the second bevel gear 244 meshes with the first bevel gear 242, driving the second screw 241 to rotate; the second screw 241 is threadedly engaged with the threaded plate 216, driving the first slider 212 and the second slider 214 to slide up and down synchronously; the first spring 213 is always evenly stressed, maintaining the constant pressure of the wire drawing roller 223 on the board, ensuring that the wire drawing pattern is uniform and continuous.

[0050] In the partially engaged state, the drawing roller 223 increases the pressure at the crest and decreases the pressure at the trough, forming differentiated patterns; when completely disengaged, the drawing roller 223 can freely adjust the pressure with the fluctuations, enriching the processing patterns.

[0051] Example 2: As Figures 1 to 10 As shown, while all other parts are the same as in Example 1, the difference between this example and Example 1 is that: A polishing method for a polishing apparatus for furniture metal sheets includes the following steps: Step 1, workpiece positioning: Fix the metal sheet to be processed on the worktable of the Cartesian coordinate robot 100. The metal sheet is a flat metal sheet or a corrugated metal sheet. Step 2, Initial Adjustment: Depending on the type of metal sheet, adjust the meshing state of the drive box 231 and the first gear 245 by rotating the first screw 215. When the metal plate is flat, bring the two drive boxes 231 close to each other, so that the locking teeth 232 and the drive gear 233 both mesh with the first gear 245, and lock the second slider 214. When the metal sheet is a corrugated plate, the two drive boxes 231 are in a partially engaged or completely disengaged state with the first gear 245. Step 3: Start polishing: Control the Cartesian coordinate robot 100 to drive the polishing mechanism 200 to move along the worktable, and at the same time start the drive motor 222 to drive the wire drawing roller 223 to rotate, so that the wire drawing roller 223 is in contact with the surface of the metal sheet. Step 4, Dynamic Pressure Adjustment: During the movement of the polishing mechanism 200, when the metal sheet is a corrugated sheet, the wire drawing roller 223 moves up and down with the undulation of the sheet surface, causing the second slider 214 to slide up and down; the drive component 230 fixed on the second slider 214 moves accordingly, and drives the synchronization component 240 to move through meshing with the first gear 245. The synchronization component 240 drives the first slider 212 and the second slider 214 to slide synchronously, so that the first spring 213 connecting the first slider 212 and the second slider 214 is kept in a uniform force state, thereby maintaining the constant pressure of the wire drawing roller 223 on the sheet surface; Step 5, Effect Adjustment: According to the desired wire drawing effect, adjust the extension length of the drive gear 233 by adjusting the adjustment component 250, change the effective meshing stroke of the drive component 230 and the first gear 245, and then adjust the displacement ratio of the first slider 212 and the second slider 214, so that the wire drawing roller 223 generates differentiated pressure at the peaks and troughs of the board surface, forming a wire drawing texture that matches the undulating contour of the board.

[0052] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A polishing device for furniture metal sheets, comprising a Cartesian coordinate robot and a polishing mechanism mounted on the Cartesian coordinate robot, characterized in that, The Cartesian robot has a worktable for placing corrugated metal sheets; the polishing mechanism is movably mounted on the Cartesian robot along the worktable and includes: A telescopic component, comprising a second slider and a first slider that can slide up and down; The wire drawing assembly is fixedly mounted on the second slider and is used to slide up and down with the surface undulations of the corrugated metal sheet during movement; The drive component is fixedly mounted on the second slider; The synchronization component is fixedly mounted on the first slider; The driving component and the synchronization component cooperate with each other to drive the first slider to slide up and down synchronously when the second slider slides up and down with the surface of the corrugated metal plate to draw wire, so as to keep the pressure of the wire drawing component on the corrugated metal plate constant.

2. The polishing device for furniture metal sheets according to claim 1, characterized in that, The wire drawing assembly includes: The fixing cover is fixedly installed on the second slider; The drive motor is fixedly installed inside the fixed cover, and a wire drawing roller is fixedly installed on its power output shaft.

3. The polishing device for furniture metal sheets according to claim 1, characterized in that, The telescopic component also includes: The first sliding frame is fixedly connected to the Cartesian coordinate robot; The synchronization component includes: The second screw is rotatably mounted on the first sliding frame, and a first bevel gear is fixedly mounted on it; A fixed frame is fixedly installed on the first sliding frame, and a first rotating shaft is rotatably mounted on it; The second bevel gear is fixedly mounted on the first rotating shaft and meshes with the first bevel gear; The first gear is fixedly mounted on the first rotating shaft.

4. A polishing device for furniture metal sheets according to claim 1, characterized in that, The telescopic component also includes: The first sliding frame is fixedly installed on the Cartesian coordinate robot and is slidably connected to the first slider and the second slider. The first spring has one end fixedly connected to the first slider and the other end fixedly connected to the second slider.

5. A polishing device for furniture metal sheets according to claim 3, characterized in that, The telescopic component also includes: Both threaded plates are fixedly connected to the first slider by bolts, and the threaded plate closer to the second screw is threadedly connected to the second screw.

6. A polishing device for furniture metal sheets according to claim 5, characterized in that, The telescopic component also includes: The slide bar is fixedly installed on the first sliding frame and slidably connected to the threaded plate.

7. A polishing device for furniture metal sheets according to claim 1, characterized in that, The driving component includes: The driver box has a row of retaining teeth fixedly installed on it; The drive gear frame is slidably mounted on the drive box.

8. A polishing device for furniture metal sheets according to claim 7, characterized in that, The telescopic component also includes: Both first screws are rotatably mounted on the second slider and are threadedly connected to the two drive boxes respectively.

9. A polishing device for furniture metal sheets according to claim 7, characterized in that, The polishing mechanism further includes an adjustment component, the adjustment component comprising: An adjustment box is fixedly installed on the drive box, and a pad is fixedly installed inside it. The third slider is slidably mounted on the adjustment box, and a track groove is formed on its surface; The second spring has one end fixedly connected to the third slider and the other end fixedly connected to the pad. The connecting rod is fixedly installed on the third slider and slidably connected to the pad block, and fixedly connected to the drive gear frame; A rotating plate is rotatably mounted on the pad, and a rotating column extending into the track groove is rotatably mounted on it; The second sliding frame is slidably connected to the adjustment box and fixedly connected to the connecting rod.

10. A polishing method for a polishing apparatus for furniture metal sheets according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Fix the metal sheet onto the worktable of the Cartesian coordinate robot; Step 2: Depending on the type of sheet material, adjust the meshing state of the drive box and the first gear by rotating the first screw: If it is a flat plate, bring the two drive boxes close to each other and engage with the first gear to lock the second slider; If it is a corrugated plate, it allows the drive box to engage or disengage from the first gear. Step 3: Start the Cartesian coordinate robot and drive motor to make the wire drawing roller fit against the surface of the sheet and move along the worktable; Step 4: When polishing the corrugated plate, the wire drawing roller moves the second slider along with the surface undulations. The drive component drives the synchronization component through meshing with the first gear, so that the first slider and the second slider slide synchronously. Step 5: Adjust the extension length of the drive gear frame by adjusting the adjustment component, change the displacement ratio of the first slider and the second slider, so that the drawing roller forms differential pressure at the crest and trough of the wave.

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