Concave-convex surface polishing and wire drawing equipment

Abstract

The utility model belongs to the technical field of machining equipment, and provides concave-convex surface polishing and wire drawing equipment which comprises a grinding device and a mechanical arm, the grinding device comprises a grinding mechanism and a driving mechanism, and the driving mechanism is used for driving the grinding mechanism to do reciprocating translational motion; the grinding mechanism comprises an abrasive belt, a roller set, a first motor and a supporting plate, the roller set comprises a first roller and a second roller, and the first motor is used for driving the roller set to drive the abrasive belt to operate; the abrasive belt is provided with a first machining position located above the supporting plate and a second machining position located on the second roller. A rotating head is arranged at the operating end of the mechanical arm, a first clamping seat and a second clamping seat are arranged on the rotating head, a first mounting part is arranged on the first clamping seat, and a second mounting part is arranged on the second clamping seat; the rotating head can rotate forwards and backwards to drive the first mounting part to move to a first machining position or move the second mounting part to a second machining position. The problems that an existing workpiece with a concave-convex surface is difficult in wire drawing treatment and low in machining efficiency are solved.

Description

Technical Field

[0001] This application belongs to the field of mechanical processing equipment technology, and in particular relates to a polishing and wire drawing equipment for concave and convex surfaces. Background Technology

[0002] After machining, products, especially 3D printed products, require polishing due to their high surface roughness. Currently, automated polishing equipment is suitable for grinding flat products. For products with uneven surfaces, manual polishing is necessary, which is not only inefficient but also requires skilled operators to ensure consistent polishing pressure. For small parts, such as watch clasps, hand-polishing is even more challenging.

[0003] In addition, some products require wire drawing after polishing and grinding to create linear textures on the machined surface. Current technology involves simultaneously wire drawing both sides of the workpiece from both sides to create linear textures on both surfaces concurrently. However, as customer requirements increase, for workpieces with convex and concave surfaces, one side is convex and the other concave. Due to the uneven shape, the traditional method of simultaneous grinding with two wire drawing rollers cannot be used. Two independent wire drawing machines must be used: one for the concave side and the other for the convex side. Switching between these two machines is cumbersome, increases complexity, and reduces production efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a polishing and wire drawing device for uneven surfaces, so as to solve the technical problems of difficulty in wire drawing of workpieces with uneven surfaces and low processing efficiency in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a polishing and wire drawing device for uneven surfaces, comprising:

[0006] The grinding device includes a grinding mechanism and a driving mechanism. The driving mechanism is used to drive the grinding mechanism to perform reciprocating translational motion, so that the surface of the workpiece during grinding forms a linear texture.

[0007] The grinding mechanism includes a sanding belt, a roller assembly, a first motor, and a support plate. The sanding belt is mounted on the roller assembly. The first motor drives the roller assembly to rotate the sanding belt.

[0008] The roller assembly includes at least a first roller and a second roller. The support plate is disposed between the first roller and the second roller, and the abrasive belt portion located above the support plate is configured as a first processing position for processing the convex surface of the workpiece. The outer peripheral contour of the second roller matches the concave surface of the workpiece, and the abrasive belt portion on the second roller is configured as a second processing position for processing the concave surface of the workpiece.

[0009] A robotic arm has a rotating head at its operating end. The rotating head has a first clamping seat and a second clamping seat for mounting workpieces, respectively. The first clamping seat has a first mounting portion that exposes the convex surface of the workpiece, and the second clamping seat has a second mounting portion that exposes the concave surface of the workpiece. The rotating head can rotate in both directions to drive the first mounting portion to move to the first processing position, or to move the second mounting portion to the second processing position.

[0010] The beneficial effects of the concave-convex surface polishing and wire drawing equipment provided in this application are as follows: Compared with the prior art, the concave-convex surface polishing and wire drawing equipment of this application is redesigned for wire drawing processing of workpieces with both concave and convex surfaces. On the one hand, the grinding mechanism of the grinding device is provided with a first processing position for processing the convex surface of the workpiece and a second processing position for processing the concave surface of the workpiece, thereby integrating processing parts for processing both concave and convex surfaces on one device. On the other hand, the operating end of the robotic arm is improved by providing a rotating head. The rotating head is provided with a first clamping seat and a second clamping seat that can respectively mount the workpiece. The first mounting part on the first clamping seat exposes the convex surface of the workpiece, and the second mounting part on the second clamping seat exposes the concave surface of the workpiece. By using the forward or reverse rotation of the rotating head, the processing position of the workpiece can be quickly switched in a short distance. This helps to reduce the time and calibration operations of disassembling the workpiece after processing on one device and then mounting it on another device for further processing, effectively improving the ease of operation and yield rate, and thus improving production efficiency.

[0011] The structure of the grinding mechanism is improved. The grinding mechanism includes a support frame, which includes a base plate and a support plate erected on the base plate. The first motor is mounted on the support frame. The first roller and the second roller are both mounted on the support plate at the same height, making the sanding belt portion between the first roller and the second roller a flat surface. The support plate is located below the flat surface and supports it. Thus, the support plate forms a support surface at the bottom of the first processing position, providing a backing effect when the sanding belt grinds the convex surface of the workpiece, ensuring stable contact between the sanding belt surface and the convex surface of the workpiece, and improving the grinding and wire-drawing effect on the convex surface of the workpiece.

[0012] In one embodiment, the support further includes a lifting mechanism for adjusting the height of the pallet. The lifting mechanism includes a vertical plate and a connecting plate. The vertical plate is mounted on the base plate and has a driver and a slide rail. The pallet is connected to the slide rail on the vertical plate via the connecting plate. The output end of the driver is connected to the connecting plate and drives the connecting plate along the slide rail to move the pallet up and down. Thus, the height of the pallet can be adjusted using the lifting mechanism according to the wear of the sanding belt, ensuring that the surface of the sanding belt remains in close contact with the convex surface of the workpiece for continued grinding, effectively improving the utilization rate of the sanding belt.

[0013] In one embodiment, the first roller in the roller assembly is connected to the output end of the first motor, and the second roller is detachably mounted on the support plate. This allows for the replacement of second rollers with different inner diameters to accommodate workpieces of different specifications, ensuring that the outer circumferential profile of the second roller can be adapted to the concave curvature of workpieces of different specifications, effectively improving adaptability.

[0014] In one embodiment, the roller assembly further includes a first pressure roller and a second pressure roller disposed on the support plate. The first pressure roller is located below the second roller and is vertically offset from the second roller. The second pressure roller is disposed close to the first roller, and its height is between the second roller and the first pressure roller. At least a portion of the abrasive belt is wound around the first and second pressure rollers. On the one hand, allowing the second roller in the second processing position to protrude is beneficial for the robotic arm's operating end to be free from interference from other structures when switching to the second processing position on the grinding device, effectively improving the fit between the concave surface of the workpiece and the abrasive belt in the second processing position. On the other hand, having the first and second pressure rollers offset from each other on the same horizontal plane allows at least a portion of the abrasive belt to be wound around the offset first and second pressure rollers, effectively improving the pressing effect on the abrasive belt and thus improving the belt tension.

[0015] The drive mechanism is structurally improved, comprising a mounting bracket, a second motor, a rotating rod, and a connecting rod. The rotating rod has a connecting hole, and one end of the connecting rod is connected to this hole via a connecting shaft. The other end of the connecting rod is connected to the base plate of the bracket via a rotating shaft. The output shaft of the second motor is connected to the rotating rod, and the second motor drives the rotating rod to rotate unidirectionally, thereby causing the connecting rod to drive the bracket to reciprocate. Thus, unidirectional rotation of the second motor's output shaft can drive the rotating rod and connecting rod, thereby driving the entire grinding mechanism to reciprocate, effectively improving the continuity of the grinding mechanism's reciprocating motion.

[0016] In one embodiment, the grinding device is further provided with a pair of parallel rails, both of which extend parallel to the connecting rod in the same direction; the bracket is provided with connecting feet for mounting on the pair of parallel rails. Thus, by utilizing the guiding effect of the parallel rails, the grinding mechanism can translate along the length of the rails during its reciprocating motion, effectively improving the stability of the grinding mechanism during its reciprocating motion.

[0017] The structure of the robotic arm's operating end is improved. The rotating head is connected to the first clamping seat, which has a first clamp extending in a first direction. The first mounting part is located on the extended end of the first clamp. The second clamping seat is connected to one side of the first clamping seat, and has a second clamp extending in a second direction, perpendicular to the first and second directions. The second mounting part is located on the extended end of the second clamp. Thus, by utilizing the rotating head on the robotic arm's operating end to perform forward or reverse rotational motion, short-range switching of the workpiece between two processing positions on the grinding device can be quickly achieved, effectively saving workpiece clamping time and thus improving processing efficiency.

[0018] In one embodiment, the workpiece has a through hole; both the first and second clamps include at least one set of clamping blocks and an adjusting screw, with a gap between the clamping blocks. The set of clamping blocks is used to pass through the through hole of the workpiece and fix the workpiece from the inside with tension; the adjusting screw is used to tighten the gap so that the set of clamping blocks move closer together to remove the workpiece. Thus, by using a set of clamping blocks on the clamps to fix the workpiece from the inside, the clamping mechanism on the outer periphery of the workpiece is avoided, which helps to improve the fit between the machined surface of the workpiece and the abrasive belt, allowing the entire machined surface of the workpiece to be machined in place, thereby improving the workpiece yield.

[0019] The structure of the entire concave-convex surface polishing and wire drawing equipment is improved. The equipment further includes a water collection tank, with the grinding device housed within it. A robotic arm is positioned outside the water collection tank and is capable of transferring workpieces onto the grinding device. The water collection tank collects the water sprayed onto the processing position during the grinding device's operation, thus ensuring a clean and hygienic processing environment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1Schematic diagram of the three-dimensional structure of the workpiece Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the workpiece Figure 2 ;

[0023] Figure 3 A schematic diagram of the overall structure of the concave-convex surface polishing and wire drawing equipment provided in the embodiments of this application;

[0024] Figure 4 A schematic diagram of the structure of a workpiece in the first processing position of a grinding apparatus, provided in an embodiment of this application;

[0025] Figure 5 A top view of the grinding apparatus provided in an embodiment of this application;

[0026] Figure 6 A three-dimensional structural diagram of the grinding apparatus provided in the embodiments of this application. Figure 1 ;

[0027] Figure 7 A schematic diagram of the workpiece in the second processing position of the grinding apparatus provided in an embodiment of this application;

[0028] Figure 8 A three-dimensional structural diagram of the grinding apparatus provided in the embodiments of this application. Figure 2 ;

[0029] Figure 9 A three-dimensional structural diagram of the grinding apparatus provided in the embodiments of this application. Figure 3 ;

[0030] Figure 10 A three-dimensional structural diagram of the bracket on the grinding mechanism provided in the embodiments of this application;

[0031] Figure 11 Exploded view of the grinding apparatus provided in the embodiments of this application Figure 1 ;

[0032] Figure 12 A schematic diagram of the assembly structure of the tray and connecting plate provided in the embodiments of this application;

[0033] Figure 13 A front view of the grinding apparatus provided in an embodiment of this application;

[0034] Figure 14 A three-dimensional structural diagram of the grinding apparatus provided in the embodiments of this application. Figure 4 ;

[0035] Figure 15 Exploded view of the grinding apparatus provided in the embodiments of this application Figure 2 ;

[0036] Figure 16 This is a schematic diagram of the internal structure of the drive mechanism provided in an embodiment of this application;

[0037] Figure 17 A three-dimensional structural schematic diagram of the robotic arm operating end provided in an embodiment of this application;

[0038] Figure 18 This is an enlarged structural schematic diagram of the robotic arm operating end provided in an embodiment of this application.

[0039] The following are the labeling elements in the figure:

[0040] 100 - Workpiece; 101 - Convex surface; 102 - Concave surface;

[0041] 200-robotic arm;

[0042] 300-Grinding device;

[0043] 400-Water collection tank;

[0044] 1-Rotating head; 11-First clamping seat; 111-First mounting part; 12-Second clamping seat; 121-Second mounting part; 13-First clamp; 14-Second clamp; 15-Fastener; 16-Clamping block; 161-Gap; 17-Adjusting screw;

[0045] 2-Grinding mechanism; 21-Sand belt; 22-Roller assembly; 221-First roller; 222-Second roller; 223-First pressure roller; 224-Second pressure roller; 23-First motor; 24-Support plate; 25-First processing position; 26-Second processing position;

[0046] 3-Drive mechanism; 31-Mounting bracket; 32-Second motor; 321-Limit pin; 33-Rotating rod; 331-Connecting hole; 332-Fixing protrusion; 333-Through hole; 334-Fixing groove; 34-Connecting rod; 341-Connecting shaft; 35-Railway;

[0047] 4-Bracket; 41-Base plate; 42-Support plate; 43-Baffle; 44-Upright plate; 441-Slide rail; 45-Connecting plate; 451-Mounting slot; 46-Driver; 47-Connecting foot. Detailed Implementation

[0048] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0049] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0050] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0052] In related technologies, the common method for wire drawing of workpieces is to use wire drawing rollers. Wire drawing rollers have linear textures on them. The wire drawing rollers are used to grind the workpiece's machined surface, thereby forming linear textures on the workpiece's machined surface.

[0053] For workpieces with two sides, where both opposite machined surfaces require wire drawing, a set of symmetrically arranged wire drawing rollers can be installed on the equipment. The workpiece passes between these two rollers, and the simultaneous operation of the two rollers synchronously draws both sides of the workpiece, creating linear textures on both surfaces at the same time.

[0054] However, for workpieces with both sides being concave and convex, such as Figure 1 and Figure 2 As shown, workpiece 100 is an arc-shaped bent body with a convex surface 101 on one side and a concave surface 102 on the other. Both the concave surface 102 and the convex surface 101 on workpiece 100 require wire drawing. Because workpiece 100 has two surfaces, the aforementioned synchronous wire drawing roller method cannot be used for processing. Instead, a traditional method with two independent wire drawing devices must be used: one device handles the wire drawing of the concave surface 102, and the other handles the wire drawing of the convex surface 101. Workpiece 100 needs to be moved between the two processing devices, resulting in cumbersome operation, increased difficulty, and reduced production efficiency.

[0055] It is evident that current wire drawing equipment cannot meet the processing requirements for workpieces 100 with both concave and convex surfaces. Therefore, the applicant has painstakingly researched and designed a device for wire drawing of workpieces 100 with both concave and convex surfaces. Breaking away from the conventional thinking of industry professionals (which refers to a mechanism that can only be set up on one machine for processing one part of workpiece 100), this device creatively proposes a completely new concave-convex surface polishing and wire drawing device. This device has processing parts for wire drawing of the convex surface 101 and concave surface 102 on workpiece 100. A robotic arm automatically adjusts the position of the concave and convex surfaces of workpiece 100, thereby enabling the wire drawing of the concave and convex surfaces of workpiece 100 to be completed on a single machine. This effectively improves processing efficiency and solves the technical problems of difficulty and low processing efficiency in wire drawing of workpieces 100 with concave and convex surfaces in existing technologies. A detailed description follows.

[0056] Please refer to the following: Figure 3 and Figure 4 The uneven surface polishing and wire drawing equipment includes a robotic arm 200 and a grinding device 300.

[0057] The robotic arm 200 has a rotating head 1 at its operating end, and the rotating head 1 has a first clamping seat 11 and a second clamping seat 12 for mounting workpieces 100 respectively. The first clamping seat 11 has a first mounting portion 111 that exposes the convex surface 101 of the workpiece 100, and the second clamping seat 12 has a second mounting portion 121 that exposes the concave surface 102 of the workpiece 100. Thus, workpieces 100 can be mounted on the first clamping seat 11 and the second clamping seat 12 respectively, with the convex surface 101 of one workpiece 100 exposed on the first mounting portion 111 and the concave surface 102 of the other workpiece 100 exposed on the second mounting portion 121. The robotic arm 200 can receive control commands to drive the rotating head 1 to rotate forward or backward, thereby switching the processing positions of the first mounting portion 111 and the second mounting portion 121 on the grinding device 300.

[0058] For the structure of the grinding device 300, please refer to Figure 5 The grinding device 300 includes at least a grinding mechanism 2 and a driving mechanism 3. The driving mechanism 3 is used to drive the grinding mechanism 2 to perform reciprocating translational motion, so that linear textures can be formed on the surface (convex surface 101 and concave surface 102) of the workpiece 100 being ground on the grinding mechanism 2.

[0059] Please refer to the following: Figure 5 and Figure 6The grinding mechanism 2 includes a sanding belt 21, a roller assembly 22, a first motor 23, and a support plate 24. The roller assembly 22 includes at least a first roller 221 and a second roller 222, and the sanding belt 21 is mounted on the first roller 221 and the second roller 222. The first motor 23 drives the roller assembly 22 to rotate the entire sanding belt 21. In this embodiment, the first roller 221 is connected to the output end of the first motor 23, and the first motor 23 drives the first roller 221 to rotate the sanding belt 21 and the second roller 222.

[0060] Please refer to the following: Figure 4 , Figure 6 and Figure 7 The support plate 24 is disposed between the first roller 221 and the second roller 222, and the sanding belt portion located above the support plate 24 is configured as a first processing position 25 for processing the convex surface 101 of the workpiece 100. This can be understood as the support plate 24 supporting the sanding belt portion at the first processing position 25. When the robotic arm 200 moves the workpiece 100 to the first processing position 25, allowing the convex surface 101 of the workpiece 100 to press against the sanding belt portion at the first processing position 25, the other side of the sanding belt portion will abut against the support plate 24, thereby keeping the sanding belt 21 firmly attached to the convex surface 101 of the workpiece 100 for grinding.

[0061] The outer periphery of the second roller 222 mates with the concave surface 102 of the workpiece 100, and the abrasive belt portion on the second roller 222 is set as a second processing position 26 for processing the concave surface 102 of the workpiece 100. Thus, when the robotic arm 200 drives the workpiece 100 to move to the second processing position 26, the concave surface 102 of the workpiece 100 presses against the abrasive belt portion of the second processing position 26, allowing the abrasive belt portion on the second roller 222 to grind the concave surface 102 of the workpiece 100.

[0062] Compared with the prior art, the concave-convex surface polishing and wire drawing equipment provided in this application is redesigned for the wire drawing process of workpiece 100 with both concave and convex surfaces. On the one hand, the grinding mechanism 2 of the grinding device 300 is provided with a first processing position 25 for processing the convex surface 101 of the workpiece 100 and a second processing position 26 for processing the concave surface 102 of the workpiece 100, so that a processing part for processing both concave and convex surfaces is integrated on one device. On the other hand, the operating end of the robotic arm 200 is improved by setting a rotating head 1 on the operating end. The rotating head 1 is provided with a first clamping seat 11 and a second clamping seat 12 that can respectively mount the workpiece 100. The first mounting part 111 on the first clamping seat 11 exposes the convex surface 101 of the workpiece 100, and the second mounting part 121 on the second clamping seat 12 exposes the concave surface 102 of the workpiece 100. By rotating the rotating head 1 in the forward or reverse direction, the workpiece 100 on the two clamping seats can be quickly switched with the first processing position 25 and the second processing position 26 of the grinding device 300, thereby realizing short-range switching between two different processing positions.

[0063] In actual operation, after the concave and convex surfaces of a group (two) workpieces 100 are processed, the clamping positions of the two workpieces 100 can be exchanged to process the concave and convex surfaces on the other side of the group of workpieces 100, thereby realizing batch processing of workpieces 100 and effectively improving processing efficiency.

[0064] The concave-convex surface polishing and wire drawing equipment provided in this application embodiment integrates processing positions on the grinding device 300 for processing the concave surface 102 and convex surface 101 of the workpiece 100 respectively. Combined with the rotating head 1 on the operating end of the robotic arm 200, the processing position of the workpiece 100 can be quickly switched by rotating the rotating head 1 in the forward or reverse direction. This helps to reduce the time and calibration operations of disassembling the workpiece 100 after processing on one device and then installing it on another device for further processing, effectively improving the ease of operation and yield, and thus improving production efficiency.

[0065] Regarding the grinding mechanism 2 on the grinding device 300, please refer to one embodiment of this application. Figure 8 and Figure 9 The grinding mechanism 2 includes a bracket 4, which includes a base plate 41 and a support plate 42 erected on the base plate 41. The first motor 23 is mounted on the bracket 4.

[0066] In this embodiment, the base plate 41 preferably has a plurality of vertically arranged partitions 43 on the base plate 41, and the support plate 42 is arranged on the same side of each partition 43. The plurality of partitions 43 serve both to fix the support plate 42 vertically and to separate it, so that the first motor 23 can be separated from other components on the support plate 42 (such as the lifting mechanism described below) to avoid mutual interference.

[0067] like Figure 9 As shown, the first roller 221 and the second roller 222 of the roller assembly 22 are both mounted on the support plate 42, and the first roller 221 and the second roller 222 are both mounted at the same height, so that the sanding belt portion between the first roller 221 and the second roller 222 is a flat surface. The support plate 24 is located below this flat surface and is used to support the flat surface.

[0068] Thus, the support plate 24 forms a support surface at the bottom of the first processing position 25, so as to act as a backing when the sanding belt 21 grinds the convex surface 101 of the workpiece 100, so that the surface of the sanding belt 21 can make stable contact with the convex surface 101 of the workpiece 100, thereby improving the grinding and wire drawing effect of the convex surface 101 of the workpiece 100.

[0069] In practical applications, the sanding belt 21 is a consumable part. As the processing progresses, the surface working thickness or tension of the sanding belt 21 will gradually decrease, which will affect the grinding effect on the convex surface 101 of the workpiece 100. The sanding belt 21 needs to be replaced in time.

[0070] Therefore, in order to improve the utilization rate and saturation of the sanding belt 21, please refer to one embodiment of this application. Figure 10 , Figure 11 and Figure 12 The bracket 4 also includes a lifting mechanism for adjusting the height of the support plate 24. The lifting mechanism includes a vertical plate 44 and a connecting plate 45. The vertical plate 44 is erected on the base plate 41. The vertical plate 44 is provided with a driver 46 and a slide rail 441. The driver 46 can preferably be a linear cylinder or other driving device.

[0071] Correspondingly, the pallet 24 is installed and connected to the slide rail 441 on the upright plate 44 via the connecting plate 45. The output end of the driver 46 is connected to the connecting plate 45 and is used to drive the connecting plate 45 along the slide rail 441 to drive the pallet 24 to move up and down.

[0072] In this embodiment, as Figure 11 and Figure 12As shown, the end face of the upright plate 44 for connecting with the connecting plate 45 is provided with a slide rail 441; correspondingly, the back of the connecting plate 45 has a mounting groove 451, and is mounted on the slide rail 441 using the mounting groove 451. The support plate 24 is fixed on the connecting plate 45 and extends laterally below the sanding belt 21. The driver 46 is located on one side of the upright plate 44, and the output end of the driver 46 is connected to the connecting plate 45, driving the connecting plate 45 to move up and down along the length of the slide rail 441, thereby adjusting the height of the support plate 24.

[0073] Therefore, the height of the support plate 24 can be adjusted using the lifting mechanism according to the wear of the sanding belt 21. For example, after the sanding belt 21 begins to wear, the height of the support plate 24 can be gradually raised using the lifting mechanism. Since the robotic arm 200 drives the first clamping seat 11 to the first processing position 25 and locks it in place, by adjusting the height of the support plate 24, the surface of the sanding belt 21 can remain in close contact with the convex surface 101 of the workpiece 100 for continued grinding, effectively improving the utilization rate of the sanding belt 21.

[0074] In addition, the curvature of the concave surface 102 on the other side of the workpiece 100 varies with different specifications of workpiece 100, which makes it difficult for the outer periphery of the second roller 222 to adapt to the curvature shape of the concave surface 102 on different specifications of workpiece 100, thus affecting the grinding effect on the concave surface 102 of the workpiece 100.

[0075] Therefore, in one embodiment of this application, please refer to [the relevant documentation / reference]. Figure 9 and Figure 13 The second roller 222 is detachably mounted on the support plate 42. In this embodiment, the first roller 221 is fixedly connected to the output end of the first motor 23, and the second roller 222 is mounted on the support plate 42 via a roller shaft, and the second roller 222 is detachably mounted on the roller shaft.

[0076] In this way, the second roller 222 with different inner diameters can be replaced according to the workpiece 100 of different specifications, so that the outer circumferential contour of the second roller 222 can be adapted to the curvature of the concave surface 102 of the workpiece 100 of different specifications, effectively improving the adaptability and ensuring the grinding effect on the concave surface 102 of the workpiece 100.

[0077] In practical applications, the tension of the abrasive belt 21 is also particularly important; otherwise, the surface of the abrasive belt 21 cannot properly adhere to the machining surface of the workpiece 100, affecting the grinding effect on the machining surface of the workpiece 100. To further improve the tension of the abrasive belt 21, please refer to one embodiment of this application. Figure 13 The roller assembly 22 also includes a first pressure roller 223 and a second pressure roller 224 disposed on the support plate 42. The first pressure roller 223 is located below the second roller 222 and is staggered vertically from the second roller 222.

[0078] In this way, the second roller 222 on the second processing position 26 can be protruding, which is beneficial when the operating end of the robotic arm 200 switches to the second processing position 26 on the grinding device 300, the concave surface 102 of the workpiece 100 can easily fit on the second processing position 26, avoiding interference from other structures (such as the structure of the first pressure roller 223), and effectively improving the fit between the concave surface 102 of the workpiece 100 and the sanding belt 21 on the second processing position 26.

[0079] Among them, such as Figure 13 As shown, the second pressure roller 224 is positioned close to the first roller 221, and the height of the second pressure roller 224 is between the second roller 222 and the first pressure roller 223. At least a portion of the sand belt 21 is wrapped around the first pressure roller 223 and the second pressure roller 224.

[0080] In this way, the first pressure roller 223 and the second pressure roller 224 are staggered on the same horizontal plane, so that at least part of the sanding belt 21 can be wrapped around the staggered first pressure roller 223 and second pressure roller 224, effectively improving the pressing effect on the sanding belt 21, thereby improving the tension of the sanding belt 21 and ensuring the processing effect on the workpiece 100.

[0081] In the grinding device 300 provided in this application embodiment, the driving mechanism 3 is used to drive the entire grinding mechanism 2 to reciprocate during the operation of the grinding device 300, so that linear textures can be formed on the processing surface of the workpiece 100 being ground, and a wire drawing effect can be achieved.

[0082] Therefore, for the specific structure of the drive mechanism 3, please refer to one embodiment of this application. Figure 14 , Figure 15 and Figure 16 The drive mechanism 3 includes a mounting bracket 31, a second motor 32, a rotating rod 33, and a connecting rod 34. The rotating rod 33 is provided with a connecting hole 331.

[0083] One end of the connecting rod 34 has a protruding connecting shaft 341, and is connected to the connecting hole 331 of the rotating rod 33 through the connecting shaft 341. The other end of the connecting rod 34 is connected to the base plate 41 of the support 4 through a rotating shaft, so that the connecting rod 34 and the base plate 41 of the support 4 can make adaptive movements, which is beneficial to adapting to the swing amplitude of the connecting rod 34 driven by the rotating rod 33.

[0084] The output shaft of the second motor 32 is connected to the rotating rod 33. The second motor 32 is used to drive the rotating rod 33 to rotate and swing in one direction, so that the connecting rod 34 drives the bracket 4 to reciprocate and translate.

[0085] Preferably, the connecting hole 331 on the rotating rod 33 is an elongated hole so that the position of the connecting shaft 341 on the connecting rod 34 on the connecting hole 331 can be adjusted according to the usage, so as to adjust the reciprocating distance of the grinding device 300, thereby adjusting the range of wire drawing treatment and effectively adapting to different workpiece 100 sizes.

[0086] In this embodiment, as Figure 15 and Figure 16 As shown, a fixing protrusion 332 is provided on the end of the rotating rod 33 away from the connection with the connecting rod 34. The fixing protrusion 332 has a through hole 333, and the through hole 333 has a fixing groove 334. Correspondingly, the second motor 32 is mounted above the rotating rod 33 via a mounting bracket 31. A limiting pin 321 is installed on the output shaft of the second motor 32. The output shaft of the second motor 32 passes through the mounting bracket 31 and is inserted into the through hole 333 of the fixing protrusion 332, so that the limiting pin 321 is engaged with the fixing groove 334. When the output shaft of the second motor 32 rotates, it synchronously drives the entire rotating rod 33 to rotate and swing.

[0087] Compared to related technologies where the output shaft of the second motor 32 is switched between forward and reverse rotation to drive the grinding mechanism 2 in reciprocating motion, the forward and reverse rotation switching of the motor in related technologies causes the reciprocating motion to stop, affecting the continuity of processing operations. In this embodiment, the entire drive mechanism 3 is similar to the eccentric transmission mechanism that drives the wheels of a train. Unidirectional rotation of the output shaft of the second motor 32 can drive the rotating rod 33 and connecting rod 34 to move, thereby driving the entire grinding mechanism 2 in reciprocating translation. This effectively improves the continuity of the reciprocating motion of the grinding mechanism 2, saves space, and ensures the operational stability of the entire grinding device 300.

[0088] Preferably, such as Figure 15 As shown, the grinding device 300 is also provided with a pair of parallel rails 35, both of which extend parallel to the connecting rod 34 in the same direction. The bracket 4 is provided with connecting feet 47 for mounting on the pair of parallel rails 35.

[0089] In this embodiment, the pair of parallel tracks 35 are respectively arranged on both sides of the drive mechanism 3. The bottom of the base plate 41 of the bracket 4 is provided with connecting feet 47 at both ends. The bottom of the connecting feet 47 is provided with a fitting groove, and the connecting feet 47 are installed on the track 35 using the fitting groove.

[0090] In this way, by utilizing the guiding effect of the parallel track, the grinding mechanism 2 can be translated along the length of the track during the reciprocating motion, which effectively improves the stability of the grinding mechanism 2 during the reciprocating motion.

[0091] Regarding the operating end structure on the robotic arm 200, please refer to one embodiment of this application. Figure 17 and Figure 18 The rotating head 1 is connected to the first clamping seat 11. The first clamping seat 11 is provided with a first clamp 13 extending in the first direction F1. The first mounting part 111 is located on the extension end of the first clamp 13.

[0092] The second clamping seat 12 is connected to one side of the first clamping seat 11. The second clamping seat 12 is provided with a second clamp 14 extending in the second direction F2. The first direction F1 is perpendicular to the second direction F2. The second mounting part 121 is located on the extension end of the second clamp 14.

[0093] As an example, such as Figure 17 As shown, in a static state, the first clamp 13 on the first clamping base 11 is vertically arranged, and the bottom of the first clamp 13 is the first mounting part 111. The second clamp 14 on the second clamping base 12 is horizontally arranged, and the end of the second clamp 14 facing the first clamp 13 is the second mounting part 121.

[0094] In practice, please refer to the following: Figure 4 and Figure 17 In the initial state, the first mounting portion 111 on the first clamping seat 11 is positioned downwards so that when the first mounting portion 111 reaches the first processing position 25 on the grinding device 300, the convex surface 101 of the workpiece 100 is pressed against the abrasive belt 21 for grinding. Please refer to the following when switching processing positions: Figure 7 and Figure 17 After the rotating head 1 drives the first clamping seat 11 to rotate 180 degrees, the second clamping seat 12 on one side of the first clamping seat 11 is transferred to the other side. At this time, the second mounting part 121 on the second clamp 14 is aligned with the second processing position 26 on the grinding device 300, and the concave surface 102 on the workpiece 100 is pressed against the sanding belt part located on the second roller 222 for grinding.

[0095] In this way, by using the rotating head 1 on the operating end of the robotic arm 200 to rotate in the forward or reverse direction, the workpiece 100 can be quickly switched between two processing positions in the grinding device 300, effectively saving the clamping time of the workpiece 100 and thus improving processing efficiency.

[0096] Regarding the mounting structure of the clamp on the clamping base, please refer to one embodiment of this application. Figure 17 The first clamp 13 and the second clamp 14 are both provided with mounting holes (not shown in the figure), and the first clamping base 11 and the second clamping base 12 are both provided with screw holes (not shown in the figure) corresponding to the positions of the mounting holes, so that fasteners 15 such as screws can be inserted through the mounting holes and screw holes to fix the clamps on the clamping bases.

[0097] Therefore, without removing the workpiece 100 from the fixture, the position of the workpiece 100 can be quickly changed by directly disassembling and assembling the fixture, avoiding frequent clamping operations that could easily damage the workpiece 100 and improving the protection of the workpiece 100.

[0098] like Figure 1 and Figure 2 As shown, since workpiece 100 is a tiny product and is constructed from bent metal strips with perforations formed by the surrounding metal strips, it is difficult to fix it by setting a clamping structure on the outer periphery. The clamping structure on the outer periphery can easily interfere with the grinding of workpiece 100, resulting in some machined surfaces on workpiece 100 not being ground properly, affecting the processing effect and yield.

[0099] Therefore, the clamping structure on the fixture is improved. In one embodiment of this application, please refer to... Figure 18 The first clamp 13 and the second clamp 14 each include at least one set of clamping blocks 16 and adjusting screws 17. A gap 161 exists between the clamping blocks 16. The set of clamping blocks 16 is used to pass through the through-hole of the workpiece 100 and fix the workpiece 100 from the inside with tension. The adjusting screws 17 are used to tighten the gap 161 so that the set of clamping blocks 16 move closer together to remove the workpiece 100.

[0100] This can be understood as follows: the sum of the lengths of the set of clamping blocks 16 and the gap 161 is not less than the diameter of the through hole on the workpiece 100, so that the set of clamping blocks 16 can support the workpiece 100 in the through hole, thereby fixing the workpiece 100 from the inside. When the adjusting screw 17 is operated to bring the set of clamping blocks 16 closer together, the tension of the set of clamping blocks 16 on the workpiece 100 is released, making it easy to remove the workpiece 100 from the fixture.

[0101] In this way, a set of clamping blocks 16 on the fixture fixes the workpiece 100 from the inside, avoiding the need to set up a clamping mechanism on the outer periphery of the workpiece 100. This helps to improve the fit between the machining surface of the workpiece 100 and the abrasive belt 21, allowing the entire machining surface on the workpiece 100 to be machined in place, thereby improving the yield of the workpiece 100.

[0102] In the actual processing, a spraying device (not shown in the figure) is needed to spray water onto the processing position on the grinding device 300 in order to cool down the workpiece 100 during grinding and prevent the workpiece 100 from being easily deformed due to the high temperature generated during grinding, which would affect the processing quality.

[0103] Therefore, in one embodiment of this application, please refer to Figure 3The uneven surface polishing and wire drawing equipment in this application embodiment also includes a water collection tank 400, and a grinding device 300 is disposed inside the water collection tank 400. A robotic arm 200 is disposed outside the water collection tank 400 and is capable of transferring the workpiece 100 onto the grinding device 300.

[0104] In this way, the water collection tank 400 collects the water sprayed on the processing position by the grinding device 300 during operation, effectively ensuring the cleanliness and hygiene of the processing environment.

[0105] Preferably, a water circulation system can also be installed in the water collection tank 400 and the spraying equipment to recycle the water, which is energy-saving and environmentally friendly.

[0106] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A concavo-convex surface polishing wire drawing apparatus characterized by comprising: The grinding device comprises a grinding mechanism and a driving mechanism for driving the grinding mechanism to make reciprocating translational motion, so that the surface of the workpiece in grinding forms linear texture. The grinding mechanism comprises a sand belt, a roller set, a first motor and a supporting plate, the sand belt is sleeved on the roller set, and the first motor is used to drive the roller set to drive the sand belt to rotate. The roller set comprises at least a first roller and a second roller, the supporting plate is arranged between the first roller and the second roller, and the part of the sand belt above the supporting plate is arranged as a first machining position for machining the convex surface of the workpiece; the outer contour of the second roller matches the concave surface of the workpiece, and the part of the sand belt on the second roller is arranged as a second machining position for machining the concave surface of the workpiece. The mechanical arm is provided with a rotating head on the operating end, the rotating head is provided with a first clamping seat and a second clamping seat for respectively mounting the workpiece, the first clamping seat is provided with a first mounting part for exposing the convex surface of the workpiece, and the second clamping seat is provided with a second mounting part for exposing the concave surface of the workpiece; the rotating head can be positively or negatively rotated to drive the first mounting part to move to the first machining position or to move the second mounting part to the second machining position. The grinding mechanism comprises a support, the support comprises a bottom plate and a supporting plate vertically arranged on the bottom plate, and the first motor is arranged on the support; the first roller and the second roller are arranged on the supporting plate and at the same height, so that the part of the sand belt between the first roller and the second roller is a flat surface, and the supporting plate is located below the flat surface and supports the flat surface.

2. The convexo-concave surface polishing wire drawing apparatus according to claim 1, characterized in that: The support further comprises a lifting mechanism for adjusting the height of the supporting plate, the lifting mechanism comprises a vertical plate and a connecting plate, the vertical plate is arranged on the bottom plate, the vertical plate is provided with a driver and a sliding rail, the supporting plate is connected with the sliding rail on the vertical plate through the connecting plate, the output end of the driver is connected with the connecting plate, and the driver drives the connecting plate to move along the sliding rail to drive the supporting plate to move up and down.

3. The convexo-concave polishing wire drawing apparatus according to claim 2, characterized in that: The first roller in the roller set is connected with the output end of the first motor, and the second roller is detachably arranged on the supporting plate.

4. The convexo-concave surface polishing wire drawing apparatus according to claim 2, wherein: The roller set further comprises a first pressure roller and a second pressure roller arranged on the supporting plate, the first pressure roller is located below the second roller and is arranged in a staggered manner with the second roller, the second pressure roller is arranged close to the first roller, and the arrangement height of the second pressure roller is located between the second roller and the first pressure roller, and at least part of the sand belt is wound on the first pressure roller and the second pressure roller.

5. The convexo-concave surface polishing wire drawing apparatus as claimed in claim 2, wherein: ​ 6. The convexo-concave surface polishing wire drawing apparatus as claimed in claim 2, wherein: The driving mechanism comprises a mounting frame, a second motor, a rotating rod and a connecting rod, the rotating rod is provided with a connecting hole, one end of the connecting rod is arranged in the connecting hole of the rotating rod through a connecting shaft, and the other end of the connecting rod is connected with the bottom plate of the support through a rotating shaft; the output shaft of the second motor is connected with the rotating rod, the second motor is used for driving the rotating rod to rotate in one direction, so that the connecting rod drives the support to reciprocatingly translate.

7. The convexo-concave polishing wire drawing apparatus according to claim 6, characterized in that: The grinding device is further provided with a pair of parallel rails, the pair of parallel rails are arranged in parallel with the connecting rod in the same direction; the support is provided with a connecting leg for being mounted on the pair of parallel rails.

8. The convexo-concave surface polishing wire drawing apparatus as claimed in claim 1, wherein: The rotating head is connected with the first clamping seat, the first clamping seat is provided with a first clamp extending in a first direction, and the first mounting portion is located on the extension end of the first clamp; The second clamping seat is connected to one side of the first clamping seat, the second clamping seat is provided with a second clamp extending in a second direction, the first direction is perpendicular to the second direction, and the second mounting portion is located on the extension end of the second clamp.

9. The convexo-concave polishing wire drawing apparatus according to claim 8, characterized in that: The workpiece is provided with a through hole; the first clamp and the second clamp each comprise at least one set of clamping blocks and adjusting screws, the clamping blocks have a gap therebetween, the set of clamping blocks are used for being inserted into the through hole of the workpiece and internally fixing the workpiece with tension, and the adjusting screws are used for tightening the gap to make the set of clamping blocks close to each other to take out the workpiece.

10. The convexo-concave polishing wire drawing apparatus according to any one of claims 1 to 9, characterized in that: The concave-convex surface polishing wire drawing equipment further comprises a water collecting tank, the grinding device is arranged in the water collecting tank, and the mechanical arm is arranged outside the water collecting tank and can transfer the workpiece to the grinding device.

Images