Multi-angle numerical control sanding and polishing machine

Abstract

The application discloses a multi-angle numerical control sanding and polishing machine and belongs to the technical field of numerical control sanding and polishing machines. The application comprises a rotating disc, a clamping assembly arranged at the top edge of the rotating disc, the clamping assemblies being distributed in parallel along the circumferential direction of the center line of the rotating disc, the clamping assemblies rotating with the rotating disc, a sanding assembly, the sanding assemblies being distributed in correspondence with the clamping assemblies, the sanding assembly comprising a first linear moving mechanism, a second linear moving mechanism, a third linear moving mechanism, a supporting seat and a sanding structure, the second linear moving mechanism being arranged on the top surface of the movable end of the first linear moving mechanism, the third linear moving mechanism being arranged on the top surface of the movable end of the second linear moving mechanism, the supporting seat being connected with the movable end of the third linear moving mechanism, the sanding structure being arranged on the supporting seat, a control system, and the control system being electrically connected with the rotating disc, the clamping assembly and the sanding assembly. The application can perform multi-angle and multi-pass polishing processes on workpieces and improve the overall polishing speed of the workpieces.

Description

Technical Field

[0001] This invention belongs to the technical field of CNC sanding and polishing machines, and specifically relates to a multi-angle CNC sanding and polishing machine. Background Technology

[0002] A CNC sanding and polishing machine is an automated device whose control system drives sanding components (sand belts, grinding wheels, etc.) to grind and polish workpieces. In existing technology, a CNC sanding and polishing machine basically includes a control system, a clamping assembly, and a sanding assembly. The clamping assembly holds the workpiece, while the control system controls the operation of the sanding assembly and the clamping assembly to grind and polish the workpiece, removing burrs, edges, and other imperfections.

[0003] However, most existing CNC sanding and polishing machines are not fully functional. While some can perform multiple polishing processes (such as rough polishing, semi-finish polishing, and finish polishing), their sanding components lack flexibility, and the sanding angles are relatively fixed, limiting them to sanding only straight-line workpieces. Other CNC sanding and polishing machines, although possessing highly flexible sanding components capable of multi-angle polishing, can only perform one polishing process at a time, requiring manual switching to the next process. For example, patent CN111941220A discloses a CNC automatic pipe bending sanding machine. This machine's sanding turntable travels along the arc trajectory of the pipe's length direction to polish it, ensuring polishing quality and consistency. However, it is suitable for workpieces requiring a single polishing process but not for workpieces requiring multiple polishing processes, such as door handles.

[0004] Therefore, it is necessary to design a multi-angle CNC sanding and polishing machine to perform multiple polishing processes on the workpiece. Summary of the Invention

[0005] This invention provides a multi-angle CNC sanding and polishing machine to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-angle CNC sanding and polishing machine includes: a turntable; clamping components disposed on the edge of the top surface of the turntable; the clamping components are distributed in parallel at intervals along the circumferential direction of the turntable's center line; the clamping components rotate with the turntable; a sanding component; the sanding components are distributed corresponding to the clamping components; the sanding component includes a first linear moving mechanism, a second linear moving mechanism, a third linear moving mechanism, a support base, and a sanding structure; the second linear moving mechanism is disposed on the top surface of the movable end of the first linear moving mechanism; the third linear moving mechanism is disposed on the top surface of the movable end of the second linear moving mechanism; the movement directions of the first linear moving mechanism, the second linear moving mechanism, and the third linear moving mechanism are mutually perpendicular, wherein the third linear moving mechanism is vertically distributed; the support base is connected to the movable end of the third linear moving mechanism; the sanding structure is disposed on the support base; and a control system; the control system is electrically connected to the turntable, the clamping components, and the sanding component.

[0007] As a further improvement to the technical solution, the support includes a first plate and a support; the surface of the first plate is connected to the side of the movable end of the third linear moving mechanism; the support is connected to the side of the first plate away from the third linear moving mechanism; and the sanding structure is disposed on the support.

[0008] As a further improvement to the technical solution, the support is rotatably connected to the first plate; the sanding component of the support also includes a first motor; the first motor is disposed on the first plate; the output end of the first motor is mechanically connected to the support to drive the support to rotate; the control system is electrically connected to the first motor.

[0009] As a further improvement to the technical solution, the support includes a second plate, a third plate, and a fourth plate; the surface of the second plate is connected to the surface of the first plate, and the other surface of the second plate is connected to one end of the third plate; the end of the third plate away from the second plate is connected to the fourth plate; the sanding structure is located on the fourth plate.

[0010] As a further improvement to the technical solution, the support also includes a fifth plate and a second motor; the third plate is connected to the fourth plate via the fifth plate and the second motor; a through slot is formed in the middle of the fourth plate; one end of the third plate away from the second plate extends into the slot; the surface of the third plate is perpendicular to the surface of the fourth plate; the second motor is disposed on the surface of the third plate and located within the slot; the length direction of the second motor is consistent with the length direction of the fourth plate; the output end of the second motor is mechanically connected to the surface of the fifth plate; the fifth plate is located within the slot; the surface of the fifth plate away from the second motor is connected to the fourth plate; the control system is electrically connected to the second motor.

[0011] As a further improvement to the technical solution, the sanding structure includes a third motor, a sanding belt, a driving pulley, and a driven pulley; the third motor is mounted on the support, and its output end is mechanically connected to the driving pulley; the driven pulley is rotatably mounted on the support; the length direction of the center lines of the driving pulley and the driven pulley is consistent with the height direction of the support; the sanding belt is connected to the driving pulley and the driven pulley, and the driving pulley and the driven pulley keep the sanding belt taut; the control system is electrically connected to the third motor.

[0012] As a further improvement to the technical solution, the driven pulley includes a small driven pulley; the number of the small driven pulleys is at least two; and there is a gap between the small driven pulleys.

[0013] As a further improvement to the technical solution, the driven pulley includes a large driven pulley; the number of the large driven pulley is one.

[0014] As a further improvement to the technical solution, the sanding structure also includes a movable plate and a fourth linear movement mechanism; the third motor is slidably mounted on the support via the movable plate; one end of the movable plate is connected to the third motor, and the other end of the movable plate is slidably connected to the support; the fourth linear movement mechanism is mounted on the support; the moving direction of the movable plate and the movable end of the fourth linear movement mechanism is consistent with the length direction of the support; the fourth linear movement mechanism is connected to the movable plate; and the control system is electrically connected to the fourth linear movement mechanism.

[0015] As a further improvement to the technical solution, the clamping assembly includes a base, a first rod, a second rod, and a fifth linear movement mechanism; one end of the first rod is horizontally connected to the top of the base, and the other end of the first rod has a partition groove to form a clamping end; the first rod has a sliding groove along its length; one end of the second rod extends into the sliding groove and is slidably connected to the first rod; the sliding groove communicates with the partition groove; the fifth linear movement mechanism is disposed on the base, and the movable end of the fifth linear movement mechanism is connected to the end of the second rod away from the first rod, driving the second rod to move; the length directions of the first rod, the second rod, and the fifth linear movement mechanism are consistent; when the second rod penetrates into the clamping end of the first rod, it opens the clamping end; the control system is electrically connected to the fifth linear movement mechanism.

[0016] As a further improvement to the technical solution, the cross-section of the slide is circular; the first rod is rotatably connected to the base; the fifth linear movement mechanism is a rotary telescopic cylinder; the clamping assembly also includes a fourth motor; the fourth motor is mounted on the base; the output end of the fourth motor is mechanically connected to the first rod, driving the first rod to rotate; the control system is electrically connected to the fourth motor.

[0017] As a further improvement to the technical solution, the base is rotatably connected to the turntable; the clamping assembly also includes a fifth motor; the fifth motor is disposed on the turntable; the output end of the fifth motor is mechanically connected to the base to drive the base to rotate; the control system is electrically connected to the fifth motor.

[0018] As a further improvement to the technical solution, the turntable includes a bracket, a disc, and a sixth motor; the top of the bracket is movably connected to the disc, and the bracket supports the disc; the brackets are distributed in parallel at intervals along the circumference of the disc's center line; the output end of the sixth motor is mechanically connected to the center of the disc, driving the disc to rotate; the sixth motor is located below the disc; and the control system is electrically connected to the sixth motor.

[0019] As a further improvement to the technical solution, the turntable also includes a pulley; the bracket supports the turntable via the pulley; the pulley is rotatably mounted on the top of the bracket; and the wheel surface of the pulley contacts the turntable.

[0020] As a further improvement to the technical solution, the pulleys are horizontally distributed; the axis of the pulleys is oriented towards the center line of the disk.

[0021] As a further improvement to the technical solution, the disk has a through mounting opening on its surface; the mounting opening is fitted with a cover plate.

[0022] As a further improvement to the technical solution, the turntable also includes a baffle; the baffle is located directly below the disc; the baffle surrounds the bracket and the sixth motor.

[0023] As a further improvement to the technical solution, the turntable also includes a rotating shaft; the sixth motor is connected to the disc via the rotating shaft; one end of the rotating shaft is mechanically connected to the sixth motor, and the other end of the rotating shaft is connected to the center of the disc; the rotating shaft is vertically distributed.

[0024] As a further improvement to the technical solution, the turntable also includes a connecting plate; the rotating shaft is connected to the disk through the connecting plate; one end of the connecting plate is connected to the rotating shaft, and the other end of the connecting plate is connected to the disk; the connecting plates are distributed in parallel at intervals along the circumferential direction of the rotating shaft axis.

[0025] As a further improvement to the technical solution, the disk has a concave structure with high edges and a low center.

[0026] As a further improvement to the technical solution, the turntable also includes a cover plate; the cover plate is disposed at the center of the top surface of the turntable.

[0027] As a further improvement to the technical solution, the first linear motion mechanism, the second linear motion mechanism, and the third linear motion mechanism are all lead screw slides.

[0028] As a further improvement to the technical solution, the sanding assembly also includes a dust cover; the dust cover is disposed on the first linear moving mechanism, the second linear moving mechanism, and the third linear moving mechanism; the dust cover covers the lead screws of the first linear moving mechanism, the second linear moving mechanism, and the third linear moving mechanism.

[0029] As a further improvement to the technical solution, the dust cover is made of flexible material and deforms with the movable ends of the first linear moving mechanism, the second linear moving mechanism, and the third linear moving mechanism.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: This application enables multi-angle, multi-pass polishing of workpieces, eliminating workpiece switching and transfer steps, thereby improving the overall polishing speed of the workpiece. In use, the workpiece is placed on the clamping assembly, which stabilizes the workpiece. Then, the control system starts the turntable and sanding assembly. The turntable drives the clamping assembly to rotate, moving the workpiece sequentially in front of the sanding assembly. The sanding assembly adjusts the polishing position and angle of the workpiece through the first linear movement mechanism, the second linear movement mechanism, the third linear movement mechanism, and the sanding structure. The polishing positions and angles of multiple sanding assemblies are different, thus performing multi-pass polishing of the workpiece, eliminating workpiece switching and transfer steps. At the same time, workpieces to be polished or already polished can be continuously added or removed, realizing uninterrupted processing of multiple workpieces and improving the polishing speed and efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of a multi-angle CNC sanding and polishing machine provided by the present invention. Figure 1 ; Figure 2 A schematic diagram of the structure of a multi-angle CNC sanding and polishing machine provided by the present invention. Figure 2 ; Figure 3 A schematic diagram of the structure of a multi-angle CNC sanding and polishing machine provided by the present invention. Figure 3 ; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 1 Top view; Figure 6 for Figure 5 Sectional view at point BB; Figure 7 Schematic diagram of the sanding component provided by the present invention Figure 1 ; Figure 8 Schematic diagram of the sanding component provided by the present invention Figure 2 ; Figure 9 Schematic diagram of the clamping assembly provided by the present invention Figure 1 ; Figure 10 for Figure 9 The front view; Figure 11 for Figure 10 Sectional view at CC; Figure 12 Schematic diagram of the clamping assembly provided by the present invention Figure 2 ; Figure 13 Schematic diagram of the clamping assembly provided by the present invention Figure 3 ; Reference numerals: 1-Turntable, 11-Bracket, 12-Disc, 13-Sixth Motor, 14-Pulley, 15-Baffle, 16-Shaft, 17-Connecting Plate, 18-Cover Plate, 2-Clamping Assembly, 21-Base, 22-First Rod, 23-Second Rod, 24-Fifth Linear Movement Mechanism, 25-Fourth Motor, 26-Fifth Motor, 3-Sanding Assembly, 31-First Linear Movement Mechanism, 32-Second Linear Movement Mechanism 33-Third linear movement mechanism, 34-Support seat, 341-First plate, 342-Support, 3421-Second plate, 3422-Third plate, 3423-Fourth plate, 3424-Fifth plate, 3425-Second motor, 35-Sanding structure, 351-Third motor, 352-Sanding belt, 353-Driving pulley, 354-Driven pulley, 3541-Small driven pulley, 3542-Large driven pulley, 355-Moving plate, 356-Fourth linear movement mechanism, 36-First motor, 37-Dust cover, 4-Workpiece. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0034] The terms "first," "second," and similar words used in this invention application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication 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.

[0036] Example 1: like Figures 1 to 6As shown, a multi-angle CNC sanding and polishing machine includes: a turntable 1, a clamping assembly 2, a sanding assembly 3, and a control system; the clamping assembly 2 is used to clamp the workpiece 4, and the clamping assembly 2 is disposed on the top edge of the turntable 1, rotating with the turntable 1; the clamping assemblies 2 are distributed in parallel at equal intervals along the circumferential direction of the center line of the turntable 1; the sanding assembly 3 is distributed correspondingly to the clamping assemblies 2, optionally, the number of clamping assemblies 2 is more than the number of sanding assemblies 3, the two extra sets of clamping assemblies 2 are adjacent, and are used for loading and unloading the workpiece 4 respectively; the sanding assembly 3... The system includes a first linear motion mechanism 31, a second linear motion mechanism 32, a support base 34, and a sanding structure 35. The second linear motion mechanism 32 is disposed on the top surface of the movable end of the first linear motion mechanism 31. The third linear motion mechanism 33 is disposed on the top surface of the movable end of the second linear motion mechanism 32. The movement directions of the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33 are mutually perpendicular, wherein the third linear motion mechanism 33 is vertically distributed, that is, the third linear motion mechanism 33 moves vertically along the height direction, while the first linear motion mechanism 31 and the second linear motion mechanism 32 move horizontally. Optionally, the movable end of the first linear motion mechanism 31 moves linearly toward the center line of the turntable 1, causing the second linear motion mechanism 32 to move closer to or away from the center line of the turntable 1. The first linear motion mechanism 31 is distributed in parallel and at intervals along the circumference of the center line of the turntable 1. The first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33 can be cylinders, lead screws, slides, etc. Preferably, the first linear motion mechanism 31, the second linear motion mechanism 32, the third linear motion mechanism 33, etc. Both the linear motion mechanism 32 and the third linear motion mechanism 33 are lead screw slides, which have strong load-bearing capacity, fast response speed, and high precision. The support base 34 is connected to the movable end of the third linear motion mechanism 33 and moves up and down with the third linear motion mechanism 33. The sanding structure 35 is set on the support base 34, close to the clamping assembly 2, which is located between the center line of the sanding structure 35 and the turntable 1. The control system is electrically connected to the turntable 1, the clamping assembly 2, and the sanding assembly 3, and controls the operation of the turntable 1, the clamping assembly 2, and the sanding assembly 3. In addition, it should be noted that the connection method between the control system and the turntable, the clamping assembly, and the sanding assembly is a conventional connection. The specific models of the first, second, and third linear motion mechanisms are not improvements of this application and will not be described here.

[0037] Work style: In use, the workpiece 4 is placed on the clamping assembly 2, which secures the workpiece 4. Then, the control system starts the turntable 1 and the sanding assembly 3. The turntable 1 drives the clamping assembly 3 to rotate, moving the workpiece 4 sequentially in front of the sanding assembly 3. The sanding assembly 3 adjusts the polishing position and angle of the workpiece 4 through the first linear movement mechanism 31, the second linear movement mechanism 32, the third linear movement mechanism 33, and the sanding structure 35. The polishing positions and angles of the multiple sanding assemblies 3 are different, thus performing multiple polishing processes on the workpiece 4. This eliminates the need for steps such as workpiece 4 switching and transfer. At the same time, workpieces to be polished or already polished can be continuously added or removed, enabling uninterrupted processing of multiple workpieces 4 and improving the polishing speed and efficiency of the workpiece 4.

[0038] like Figures 2 to 4 , Figure 7 and Figure 8 As shown, preferably, the sanding assembly 3 further includes a dust cover 37; the dust cover 37 is disposed on the first linear moving mechanism 31, the second linear moving mechanism 32, and the third linear moving mechanism 33; the dust cover 37 covers the lead screws of the first linear moving mechanism 31, the second linear moving mechanism 32, and the third linear moving mechanism 33 to protect the lead screws of the first linear moving mechanism 31, the second linear moving mechanism 32, and the third linear moving mechanism 33, and to prevent impurities, debris, and particles from interfering with the operation of the lead screws during the polishing process; preferably, the dust cover 37 is made of a flexible material, such as rubber cloth, canvas, or three-proof cloth, which can deform and extend, and move with the first linear moving mechanism 31, the second linear moving mechanism 32, and the third linear moving mechanism 33. The movable ends of the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33 are deformed; the two ends of the movable ends of the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33 are respectively connected to one end of the dust cover 37, and the other end of the dust cover 37 is connected to the fixed base of the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33. That is, when the dust cover 37 is connected to the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33, one end of the dust cover 37 is fixed, and the other end of the dust cover 37 moves with the movable ends of the first linear motion mechanism 31, the second linear motion mechanism 32, and the third linear motion mechanism 33.

[0039] Example 2: like Figures 2 to 8 As shown, compared with Embodiment 1, the difference is that a structural form of the support base 34 is given; the support base 34 includes a first plate 341 and a support 342; the plate surface of the first plate 341 is connected to the side of the movable end of the third linear moving mechanism 33; the support 342 is connected to the side of the first plate 341 away from the third linear moving mechanism 33; the sanding structure 35 is set on the support 342; the overall structure is simple.

[0040] like Figures 2 to 8As shown, preferably, the support 342 is rotatably connected to the first plate 341; the sanding assembly 3 of the support 342 also includes a first motor 36; the first motor 36 is mounted on the first plate 341, and the first motor 36 is a servo motor; the output end of the first motor 36 is mechanically connected to the support 342, driving the support 342 to rotate. Optionally, the output end of the first motor 36 is connected to the support 342 through a harmonic reducer to improve the rotation accuracy of the support 342; the control system is electrically connected to the first motor 36; the control system controls the operation of the first motor 36, driving the support 342 to rotate, thereby adjusting the rotation angle of the sanding structure 35 in the vertical direction, improving the flexibility of the sanding structure 35, and expanding the polishing range of the sanding structure 35. It should also be noted that the connection method between the first motor and the control system and the first plate is a conventional connection, and the specific model of the first motor is not an improvement point of this application, and will not be elaborated here.

[0041] like Figures 3 to 8 As shown, preferably, the support 342 includes a second plate 3421, a third plate 3422, and a fourth plate 3423; the surface of the second plate 3421 is connected to the surface of the first plate 341 to facilitate the rotation of the sanding structure 35 in the vertical direction, and the other surface of the second plate 3421 is connected to one end of the third plate 3422; the end of the third plate 3422 away from the second plate 3421 is connected to the fourth plate 3423, and the third plate 3422 supports the fourth plate 3423; the sanding structure 35 is located on the fourth plate 3423, and the surface of the first plate 341 is perpendicular to the surface of the fourth plate 3423.

[0042] like Figures 3 to 8As shown, preferably, the support 342 further includes a fifth plate 3424 and a second motor 3425; the third plate 3422 is connected to the fourth plate 3423 via the fifth plate 3424 and the second motor 3425; a through slot is provided on the middle surface of the fourth plate 3423 to accommodate the fifth plate 3424 and the second motor 3425; one end of the third plate 3422 away from the second plate 3421 extends into the slot, and the end of the third plate 3422 connected to the second plate 3421 is higher than the end of the third plate 3422 extending into the slot; the surface of the third plate 3422 is perpendicular to the surface of the fourth plate 3423; the second motor 3425 is disposed on the surface of the third plate 3422 and located within the slot, and the second motor 3425 is also a servo motor; the length direction of the second motor 3425 is perpendicular to the fifth plate 3423. The length of the four plates 3423 is consistent. The output end of the second motor 3425 is mechanically connected to the surface of the fifth plate 3424. Optionally, the second motor 3425 is connected to the fifth plate 3424 via a harmonic reducer to improve the rotation accuracy of the fifth plate 3424. The fifth plate 3424 is located within the slot, and its surface is parallel to the surface of the third plate 3422. The surface of the fifth plate 3424 furthest from the second motor 3425 is connected to the fourth plate 3423. The fourth plate 3423 rotates with the fifth plate 3424, allowing it to rotate horizontally. This adjusts the horizontal rotation angle of the sanding structure 35, improving its flexibility and expanding its polishing range. The control system is electrically connected to the second motor 3425. It should be noted that the connection between the second motor, the control system, and the fifth plate is a conventional connection. The specific model of the second motor is not an improvement in this application and will not be elaborated upon here.

[0043] Example 3: like Figures 2 to 4As shown, compared with Embodiment 2, the difference lies in that a structural form of the sanding structure 35 is given; the sanding structure 35 includes a third motor 351, a sanding belt 352, a driving pulley 353, and a driven pulley 354; the third motor 351 is disposed on the support 342, and the output end of the third motor 351 is mechanically connected to the driving pulley 353. Optionally, the output end of the third motor 351 is directly connected to the driving pulley 353. The third motor 351 is located on the end of the fourth plate 3524 away from the second plate 3521, and the third motor 351 is a servo motor; the driven pulley 354 is rotatably disposed on the support 342, and the driven pulley 354 is located on the end of the fourth plate 3524 close to the second plate 3521; the length direction of the center line of the driving pulley 353 and the driven pulley 354 is perpendicular to the height direction of the support 342. The abrasive belt 352 is connected to the driving pulley 353 and the driven pulley 354. The driving pulley 353 and the driven pulley 354 keep the abrasive belt 352 taut. When the driving pulley 353 rotates, it drives the driven pulley 354 to rotate. The control system is electrically connected to the third motor 351. The third motor 351 drives the driving pulley 353 to rotate, and the driven pulley 354 rotates with the driving pulley 353, causing the abrasive belt 352 to move at high speed. The abrasive belt 352 contacts the outer surface of the workpiece 4 to polish the workpiece 4 and remove burrs. The first linear movement mechanism 31, the second linear movement mechanism 32, the third linear movement mechanism 33, the first motor 36, and the second motor 3425 change the position of the abrasive belt 352 from different directions, thereby achieving polishing of the workpiece 4 from multiple angles, suitable for multi-pass polishing processes. In addition, it should be noted that the connection method between the third motor and the controller and the driving pulley is a conventional connection. The specific model of the third motor is not an improvement point of this application and will not be described here.

[0044] like Figure 4 , Figure 5 and Figure 7 As shown, preferably, the driven pulley 354 can be a small driven pulley 3541; the number of small driven pulleys 3541 is at least two; there is a gap between the small driven pulleys 3541 to improve the diversity of the polishing process, so that the abrasive belt 352 can better polish the curved surface of the workpiece 4.

[0045] like Figure 4 , Figure 5 and Figure 8As shown, preferably, the driven pulley 354 can be a large driven pulley 3542; there is one large driven pulley 3542, so that the sanding belt 352 polishes the straight part of the workpiece 4; the sanding belt 352 is connected to one of the small driven pulley 3541 and the large driven pulley 3542, and the small driven pulley 3541 and the large driven pulley 3542 are set according to the specific sanding process. The sanding process is increased by the small driven pulley 3541 and the large driven pulley 3542 to adapt to the polishing of the workpiece 4.

[0046] like Figure 7 and Figure 8 As shown, preferably, the sanding structure 35 further includes a movable plate 355 and a fourth linear movement mechanism 356; a third motor 351 is slidably mounted on a support 342 via the movable plate 355, one end of the movable plate 355 is connected to the third motor 351, the length direction of the third motor 351 is perpendicular to the surface of the movable plate 355, and the other end of the movable plate 355 is slidably connected to the support 342, that is, a guide rail is provided on the top surface of the end of the fourth plate 3423 away from the second plate 3421 along its length direction, and the movable plate 355 is slidably connected to the fourth plate 3423 via the guide rail; the fourth linear movement mechanism 356 is mounted on the support 342, and the fourth linear movement mechanism 356 is slidably mounted on the support 342. The moving mechanism 356 is located on the fourth plate 3423. The fourth linear moving mechanism 356 can be an electric push rod, a cylinder, a hydraulic rod, etc. Preferably, the fourth linear moving mechanism 356 is a cylinder, which has a fast response speed. The moving direction of the movable plate 355 and the movable end of the fourth linear moving mechanism 356 is consistent with the length direction of the support 342. The fourth linear moving mechanism 356 is connected to the movable plate 355, and the fourth linear moving mechanism 356 drives the movable plate 355 to move. The third motor 351 moves with the movable plate 355 to adjust the position of the drive pulley 353 to facilitate the installation of the sanding belt 352. The control system is electrically connected to the fourth linear moving mechanism 356. In addition, it should be noted that the connection method between the fourth linear moving mechanism and the control system is a conventional connection. The specific model of the fourth linear moving mechanism is not an improvement point of this application and will not be described in detail here.

[0047] Example 4: like Figures 2 to 13As shown, compared with Embodiment 1, the difference lies in that a structural form of the clamping assembly 2 is given; the clamping assembly 2 includes a base 21, a first rod 22, a second rod 23, and a fifth linear movement mechanism 24; one end of the first rod 22 is horizontally connected to the top of the base 21, and the other end of the first rod 22 has a dividing groove, dividing that end of the first rod 22 into multiple parts, which can be spread apart to form a clamping end; the first rod 22 has a sliding groove along its length; one end of the second rod 23 extends into the sliding groove and is slidably connected to the first rod 22, and the second rod 23 moves along the sliding groove; the sliding groove communicates with the dividing groove; the fifth linear movement mechanism 24 is disposed on the base 21, and the movable end of the fifth linear movement mechanism 24 is connected to the second rod 23. The end of the first rod 22 away from the first rod 22 is connected to drive the second rod 23 to move; the length directions of the first rod 22, the second rod 23, and the fifth linear movement mechanism 24 are consistent; the width of the end of the second rod 23 away from the fifth linear movement mechanism 24 is slightly larger than the width of the groove, so that the second rod 23 can open the end of the first rod 22 away from the fifth linear movement mechanism 24, expanding the interval of the partition groove. Optionally, the end of the second rod 23 away from the fifth linear movement mechanism 24 has a tapered structure that is larger at the front and smaller at the back; the control system is electrically connected to the fifth linear movement mechanism 24; in this embodiment, the workpiece 4 is a door handle, and the clamping end of the first rod 22 corresponds to the hollow part of the door handle, which has a square structure, and at the same time facilitates the positioning of the door handle and the prevention of the door handle. In addition, it should be noted that the connection method between the control system and the fifth linear movement mechanism 24 is a conventional connection.

[0048] Work style: During loading, the hollow part of the workpiece is hung on the clamping end of the first rod 22. The fifth linear movement mechanism 24 drives the second rod 23 to move forward. The second rod 23 penetrates into the clamping end of the first rod 22, increasing the spacing of the dividing grooves on the first rod 22. The clamping end is opened, and the clamping end of the first rod 22 presses against the hollow part of the door handle, restricting the hollow part of the door handle and stabilizing the door handle. This achieves stable clamping of door handles and similar workpieces. During unloading, the fifth linear movement mechanism 24 drives the second rod 23 to retract backward. The end of the second rod 23 moves away from the door handle workpiece, and the corresponding spacing of the dividing grooves decreases. The hollow part of the door handle is no longer restricted and can be easily removed. The overall structure is simple, the design is efficient, and it facilitates the loading and unloading of door handles.

[0049] like Figures 9 to 13Preferably, the cross-section of the slide is circular; the first rod 22 is rotatably connected to the base 21; the fifth linear movement mechanism 24 is a rotary telescopic cylinder, the piston rod of which can extend and retract and rotate; the clamping assembly 2 also includes a fourth motor 25; the fourth motor 25 is mounted on the base 21 and is a servo motor; the output end of the fourth motor 25 is mechanically connected to the first rod 22, driving the first rod 22 to rotate; optionally, the output end of the fourth motor 25 is belt-driven connected to the first rod 22; the control system is electrically connected to the fourth motor 25; the fourth motor 25 drives the first rod 22 to rotate, the second rod 23 opens the clamping end of the first rod 22 and also rotates with the first rod 22; the movable end of the fifth linear movement mechanism 24, i.e., the piston rod of the rotary telescopic cylinder, is connected to the first rod 22 and rotates with the second rod 23; the rotation of the first rod 22 drives the door handle to rotate, adjusting the position of the door handle, thereby changing the polishing position to adapt to different polishing processes. Additionally, it should be noted that the piston rod of the rotary telescopic cylinder can both extend and rotate, which is prior art, disclosed in patent literature, and also sold on the market, such as the Puguo SDA cylinder. This is not the first disclosure in this application. The specific model of the rotary telescopic cylinder is not an improvement point of this application, and will not be described in detail here.

[0050] like Figure 6 , Figures 9 to 13 As shown, preferably, the base 21 is rotatably connected to the turntable 1; the clamping assembly 2 also includes a fifth motor 26; the fifth motor 26 is mounted on the turntable 1, and the fifth motor 26 is a servo motor; the output end of the fifth motor 26 is mechanically connected to the base 21 to drive the base 21 to rotate. Optionally, the fifth motor 26 is connected to the base 21 through a harmonic reducer to improve rotation accuracy; the control system is electrically connected to the fifth motor 26; the fifth motor 26 drives the base 21 to rotate, thereby driving the workpiece 4 to rotate, changing and adjusting the position of the door handle, thereby changing the polishing position, adapting to different polishing processes, and providing high flexibility.

[0051] Example 5: like Figures 1 to 6As shown, compared with Embodiment 1, the difference lies in the structural form of the turntable 1 provided; the turntable 1 includes a support 11, a disc 12, and a sixth motor 13; the top of the support 11 is movably connected to the disc 12, and the support 11 supports the disc 12; the supports 11 are distributed parallel and equally spaced along the circumferential direction of the center line of the disc 12, and the supports 11 are located at the edge of the disc 12; the output end of the sixth motor 13 is mechanically connected to the center of the disc 12, driving the disc 12 to rotate; the sixth motor 13 is connected to the center of the turntable 12 through a reducer; the sixth motor 13 is located below the disc 12 to reduce the load on the disc 12, and at the same time, the sixth motor 13 can provide partial support for the center of the disc 12; the control system is electrically connected to the sixth motor 13; the sixth motor 13 drives the disc 12 to rotate, realizing the change of position of the clamping component 2, which facilitates the polishing of multiple workpieces 4. In addition, it should be noted that the connection method between the sixth motor and the control system is a conventional connection, and the specific model of the sixth motor is not an improvement point of this application, and will not be described in detail here.

[0052] like Figure 6 As shown, preferably, the turntable 1 further includes a pulley 14; the bracket 11 supports the disc 12 via the pulley 14; the pulley 14 is rotatably mounted on the top of the bracket 11; the wheel surface of the pulley 14 contacts the disc 12, preferably, the pulley 14 is horizontally distributed; the axis of the pulley 14 is oriented toward the center line of the disc 12 to facilitate the rotation of the disc 12; the disc 12 is supported by the pulley 14 to facilitate the rotation of the disc 12.

[0053] like Figure 2 , Figure 3 and Figure 5 As shown, the plate surface of the disc 12 has a through mounting opening; the mounting opening is fitted with a cover plate, and the mounting opening facilitates the installation of components such as the pulley 14.

[0054] like Figure 2 and Figure 3 As shown, the turntable 1 also includes a baffle 15; the baffle 15 is located directly below the disc 12; the baffle 15 surrounds the bracket 11 and the sixth motor 13, so as to cover the sixth motor 13, the bracket 11 and other components.

[0055] like Figure 6 As shown, preferably, the turntable 1 further includes a rotating shaft 16; the sixth motor 13 is connected to the disk 12 through the rotating shaft 16; one end of the rotating shaft 16 is mechanically connected to the sixth motor 13, and the other end of the rotating shaft 16 is connected to the center of the disk 12; the rotating shaft 16 is vertically distributed; the sixth motor 13 drives the rotating shaft 16 to rotate, and the rotating shaft 16 then drives the disk 12 to rotate.

[0056] like Figure 6As shown, preferably, the turntable 1 further includes a connecting plate 17; the rotating shaft 16 is connected to the disc 12 through the connecting plate 17; one end of the connecting plate 17 is connected to the rotating shaft 16, and the other end of the connecting plate 17 is connected to the disc 12. Optionally, the connecting plate 17 and the disc 12 are detachably connected by bolts and nuts to facilitate installation and subsequent maintenance and repair; the connecting plates 17 are distributed in parallel and at equal intervals along the circumferential direction of the axis of the rotating shaft 16 to increase the number of connection points and better drive the disc 12 to rotate.

[0057] like Figure 6 As shown, preferably, the disk 12 has a concave structure with high edges and low center to improve the support capacity of the disk 12 and prevent deformation.

[0058] like Figure 2 , Figure 3 and Figure 6 As shown, preferably, the turntable 1 further includes a cover plate 18; the cover plate 18 is disposed at the center of the top surface of the disc 12, and the cover plate 18 covers the rotating shaft 16 and the connecting plate 17, protecting the rotating shaft 16 and the connecting plate.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-angle numerical control sander-polisher, characterized by comprising: include: Turntable (1); A clamping assembly (2) is disposed on the edge of the top surface of the turntable (1); the clamping assemblies (2) are distributed in parallel at intervals along the circumferential direction of the center line of the turntable (1); the clamping assemblies (2) rotate with the turntable (1); Sanding assembly (3); the sanding assembly (3) is distributed corresponding to the clamping assembly (2); the sanding assembly (3) includes a first linear moving mechanism (31), a second linear moving mechanism (32), a third linear moving mechanism (33), a support base (34), and a sanding structure (35); the second linear moving mechanism (32) is disposed on the top surface of the movable end of the first linear moving mechanism (31); the third linear moving mechanism (33) is disposed on the top surface of the movable end of the second linear moving mechanism (32); the movement directions of the first linear moving mechanism (31), the second linear moving mechanism (32), and the third linear moving mechanism (33) are perpendicular to each other, wherein the third linear moving mechanism (33) is vertically distributed; the support base (34) is connected to the movable end of the third linear moving mechanism (33); the sanding structure (35) is disposed on the support base (34); Control system; the control system is electrically connected to the turntable (1), the clamping assembly (2), and the sanding assembly (3).

2. The multi-angle CNC sander / polisher of claim 1, wherein, The support base (34) includes a first plate (341) and a support (342); the plate surface of the first plate (341) is connected to the side of the movable end of the third linear moving mechanism (33); the support (342) is connected to the side of the first plate (341) away from the third linear moving mechanism (33); the sanding structure (35) is disposed on the support (342).

3. The multi-angle CNC sander / polisher of claim 2, wherein, The support (342) is rotatably connected to the first plate (341); the sanding component (3) of the support (342) also includes a first motor (36); the first motor (36) is disposed on the first plate (341); the output end of the first motor (36) is mechanically connected to the support (342) to drive the support (342) to rotate; the control system is electrically connected to the first motor (36).

4. The multi-angle CNC sander / polisher of claim 2, wherein, The support (342) includes a second plate (3421), a third plate (3422), and a fourth plate (3423); the surface of the second plate (3421) is connected to the surface of the first plate (341), and the other surface of the second plate (3421) is connected to one end of the third plate (3422); the end of the third plate (3422) away from the second plate (3421) is connected to the fourth plate (3423); the sanding structure (35) is located on the fourth plate (3423).

5. The multi-angle CNC sanding and polishing machine according to claim 4, characterized in that, The support (342) further includes a fifth plate (3424) and a second motor (3425); the third plate (3422) is connected to the fourth plate (3423) through the fifth plate (3424) and the second motor (3425); a through slot is provided on the middle plate surface of the fourth plate (3423); one end of the third plate (3422) away from the second plate (3421) extends into the slot; the plate surface of the third plate (3422) is perpendicular to the plate surface of the fourth plate (3423); the second motor (3425) 425) is disposed on the surface of the third plate (3422) and located in the slot; the length direction of the second motor (3425) is consistent with the length direction of the fourth plate (3423); the output end of the second motor (3425) is mechanically connected to the surface of the fifth plate (3424); the fifth plate (3424) is located in the slot; the surface of the fifth plate (3424) away from the second motor (3425) is connected to the fourth plate (3423); the control system is electrically connected to the second motor (3425).

6. The multi-angle CNC sanding and polishing machine according to claim 2, characterized in that, The sanding structure (35) includes a third motor (351), a sanding belt (352), a driving pulley (353), and a driven pulley (354); the third motor (351) is mounted on the support (342), and the output end of the third motor (351) is mechanically connected to the driving pulley (353); the driven pulley (354) is rotatably mounted on the support (342); the length direction of the center line of the driving pulley (353) and the driven pulley (354) is consistent with the height direction of the support (342); the sanding belt (352) is connected to the driving pulley (353) and the driven pulley (354), and the driving pulley (353) and the driven pulley (354) keep the sanding belt (352) taut; the control system is electrically connected to the third motor (351).

7. The multi-angle CNC sanding and polishing machine according to claim 6, characterized in that, The sanding structure (35) further includes a movable plate (355) and a fourth linear movement mechanism (356); the third motor (351) is slidably mounted on the support (342) via the movable plate (355); one end of the movable plate (355) is connected to the third motor (351), and the other end of the movable plate (355) is slidably connected to the support (342); the fourth linear movement mechanism (356) is mounted on the support (342); the moving direction of the movable ends of the movable plate (355) and the fourth linear movement mechanism (356) is consistent with the length direction of the support (342); the fourth linear movement mechanism (356) is connected to the movable plate (355); the control system is electrically connected to the fourth linear movement mechanism (356).

8. The multi-angle CNC sanding and polishing machine according to claim 1, characterized in that, The clamping assembly (2) includes a base (21), a first rod (22), a second rod (23), and a fifth linear movement mechanism (24); one end of the first rod (22) is horizontally connected to the top of the base (21), and the other end of the first rod (22) has a partition groove to form a clamping end; the first rod (22) has a sliding groove along its length; one end of the second rod (23) extends into the sliding groove and is slidably connected to the first rod (22); the sliding groove communicates with the partition groove; the fifth linear movement mechanism (24) The mechanism (24) is mounted on the base (21). The movable end of the fifth linear movement mechanism (24) is connected to the end of the second rod (23) away from the first rod (22), thereby driving the second rod (23) to move. The length directions of the first rod (22), the second rod (23), and the fifth linear movement mechanism (24) are consistent. When the second rod (23) penetrates into the clamping end of the first rod (22), it opens the clamping end. The control system is electrically connected to the fifth linear movement mechanism (24).

9. The multi-angle CNC sanding and polishing machine according to claim 8, characterized in that, The cross-section of the slide is circular; the first rod (22) is rotatably connected to the base (21); the fifth linear movement mechanism (24) is a rotary telescopic cylinder; the clamping assembly (2) also includes a fourth motor (25); the fourth motor (25) is mounted on the base (21); the output end of the fourth motor (25) is mechanically connected to the first rod (22) to drive the first rod (22) to rotate; the control system is electrically connected to the fourth motor (25).

10. The multi-angle CNC sanding and polishing machine according to claim 1, characterized in that, The turntable (1) includes a bracket (11), a disc (12), and a sixth motor (13); the top of the bracket (11) is movably connected to the disc (12), and the bracket (11) supports the disc (12); the brackets (11) are distributed in parallel at intervals along the circumferential direction of the center line of the disc (12); the output end of the sixth motor (13) is mechanically connected to the center of the disc (12) to drive the disc (12) to rotate; the sixth motor (13) is located below the disc (12); the control system is electrically connected to the sixth motor (13).

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