A polishing mechanism for a numerical control sander
Patent Information
- Application Number
- CN202611189810.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-06
- Publication Date
- 2026-09-15
AI Technical Summary
[0003]但是现有的活动座大多为丝杠滑台，丝杠滑台进行直线运动，带动打磨部件做直线移动，灵活度不高，无法进行转动调节，带动打磨部件进行转动，导致打磨部件的打磨角度和位置有限，只能进行直线部分的打磨，存在一定的打磨盲区，无法适应曲面较多的工件，如门把手
本申请使用时，启动第一电机，第一电机带动打磨部件运行，随后通过控制系统控制第一直线移动结构和第二电机运行，第一直线移动结构带动打磨部件做直线运动，改变打磨部件在直线上的位置，使打磨部件进行直线部分的打磨，第二电机则带动打磨部件转动，改变打磨部件的角度，使打磨部件可进行曲面部分的打磨，有效提高整体灵活性，扩大打磨部件的打磨范围，即可实现直线打磨，又可实现曲线打磨，适用于不同种工件。
Smart Images
Figure CN122746887A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of grinding machine technology, specifically relating to a grinding mechanism for a CNC sander. Background Technology
[0002] A CNC sander is an automated device whose control system drives grinding components (sand belt, grinding wheel, etc.) to grind and polish workpieces. In existing technology, a CNC sander basically includes a control system, a clamping mechanism, and a grinding mechanism. The clamping mechanism holds the workpiece, while the control system controls the operation of the grinding mechanism and clamping components to grind and polish the workpiece, removing burrs, edges, etc. The grinding mechanism mainly includes a motor, grinding components, and a movable base. The motor and grinding components are mounted on the movable base, which drives the motor and grinding components to move. The motor is connected to the grinding components, driving their operation.
[0003] However, most existing movable seats are lead screw slides. The lead screw slides move linearly, driving the grinding components to move linearly. They are not very flexible and cannot be rotated for adjustment. This results in limited grinding angles and positions of the grinding components, which can only grind straight lines. There are certain grinding blind spots, and they cannot adapt to workpieces with many curved surfaces, such as door handles.
[0004] Therefore, it is necessary to design a grinding mechanism for CNC sanders to improve overall flexibility and expand the grinding range of grinding components. Summary of the Invention
[0005] This invention provides a grinding mechanism for a CNC sander 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 grinding mechanism for a CNC sander includes: a grinding assembly; the grinding assembly includes a first motor and a grinding component; the first motor is connected to the grinding component and drives the grinding component to move; a rotation adjustment assembly for rotating the grinding assembly; the rotation adjustment assembly includes a first plate, a second motor, and a support base; the support base is rotatably connected to the surface of the first plate; the second motor is disposed on the first plate; the output end of the second motor is mechanically connected to the support base and drives the support base to rotate; the grinding assembly is disposed on the support base; a linear adjustment assembly for linearly moving the rotation adjustment assembly; the linear adjustment assembly includes a first linear movement structure; the movable end of the first linear movement structure is connected to the first plate; and a control system; the control system is electrically connected to the grinding assembly, the second motor, and the linear adjustment assembly.
[0007] As a further improvement to the technical solution, the support base includes a second plate, a third plate, and a fourth plate; the surface of the second plate is rotatably 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; and the grinding assembly is disposed on the fourth plate.
[0008] As a further improvement to the technical solution, the support base also includes a third motor and a fifth plate; the third plate is connected to the fourth plate via the third motor and the fifth plate; the surface of the third plate is perpendicular to the surface of the fourth plate; a through slot is formed on the surface of the fourth plate; one end of the third plate away from the second plate extends into the slot; the third motor is disposed on the surface of the third plate and located within the slot; the length direction of the third motor is consistent with the length direction of the fourth plate; the output end of the third motor is mechanically connected to the surface of the fifth plate, driving the fifth plate to rotate; the surface of the fifth plate is parallel to the surface of the third plate; the surface of the fifth plate away from the third motor is connected to the fourth plate; the control system is electrically connected to the third motor.
[0009] As a further improvement to the technical solution, the surface of the second plate is perpendicular to the surface of the fourth plate.
[0010] As a further improvement to the technical solution, the support base also includes a sixth plate; the fifth plate is connected to the fourth plate through the sixth plate; the surface of the fifth plate away from the third motor is connected to one end of the sixth plate; the side of the sixth plate is connected to the fourth plate.
[0011] As a further improvement to the technical solution, the grinding component includes a driving pulley, a driven pulley, and a sanding belt; the output end of the first motor is mechanically connected to the driving pulley; the driven pulley is rotatably mounted on the support base; the length direction of the center lines of the driving pulley and the driven pulley is consistent with the height direction of the support base; 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.
[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 grinding component also includes a connecting plate; the driven pulley is detachably connected to the support base through the connecting plate; the driven pulley is rotatably mounted on the connecting plate; and the connecting plate is detachably connected to the support base.
[0015] As a further improvement to the technical solution, the grinding assembly also includes a movable plate and a second linear movement structure; the first motor is slidably mounted on the support base via the movable plate; one end of the movable plate is connected to the first motor, and the other end of the movable plate is slidably connected to the support base; the second linear movement structure is mounted on the support base; the moving direction of the movable plate and the movable end of the second linear movement structure is consistent with the length direction of the support base; the second linear movement structure is connected to the movable plate, driving the movable plate to slide; the control system is electrically connected to the second linear movement structure.
[0016] As a further improvement to the technical solution, the first plate is vertically distributed; the surface of the first plate is connected to the movable end of the first linear moving structure.
[0017] As a further improvement to the technical solution, the linear adjustment component also includes a third linear movement structure; the movable end of the third linear movement structure is connected to the fixed part of the first linear movement structure, driving the first linear movement structure to move; the movement direction of the movable end of the third linear movement structure is perpendicular to the movement direction of the movable end of the first linear movement structure.
[0018] As a further improvement to the technical solution, the linear adjustment component also includes a fourth linear moving structure; the movable end of the fourth linear moving structure is connected to the fixed part of the third linear moving structure, driving the third linear moving structure to move; the moving directions of the movable ends of the first linear moving structure, the third linear moving structure, and the fourth linear moving structure are perpendicular to each other.
[0019] As a further improvement to the technical solution, the linear adjustment assembly also includes a base; the fixed part of the fourth linear movement structure is disposed on the base.
[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: When this application is used, the first motor is started, which drives the grinding component to run. Then, the control system controls the operation of the first linear movement structure and the second motor. The first linear movement structure drives the grinding component to make linear motion, changing the position of the grinding component on the straight line, so that the grinding component can perform grinding on the straight part. The second motor drives the grinding component to rotate, changing the angle of the grinding component, so that the grinding component can perform grinding on the curved part, effectively improving the overall flexibility and expanding the grinding range of the grinding component. It can realize both linear grinding and curved grinding, and is suitable for different types of workpieces. Attached Figure Description
[0021] 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.
[0022] Figure 1 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 1 ; Figure 2 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 2 ; Figure 3 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 3 ; Figure 4 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 4 ; Figure 5 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 5 ; Figure 6 A schematic diagram of the grinding mechanism for a CNC sander provided by the present invention. Figure 6 ; Reference numerals: 1-Grinding assembly, 11-First motor, 12-Grinding component, 121-Driving pulley, 122-Driven pulley, 1221-Small driven pulley, 1222-Large driven pulley, 123-Sand belt, 124-Connecting plate, 13-Modible plate, 14-Second linear movement structure, 2-Rotation adjustment assembly, 21-First plate, 22-Second motor, 23-Support base, 231-Second plate, 232-Third plate, 233-Fourth plate, 234-Third motor, 235-Fifth plate, 236-Sixth plate, 3-Linear adjustment assembly, 31-First linear movement structure, 32-Third linear movement structure, 33-Fourth linear movement structure, 34-Base. Detailed Implementation
[0023] 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.
[0024] 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.
[0025] 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.
[0026] Example 1: like Figures 1 to 6 As shown, a grinding mechanism for a CNC sander includes: a grinding assembly 1, a rotation adjustment assembly 2, a linear adjustment assembly 3, and a control system; the grinding assembly 1 is mounted on the rotation adjustment assembly 2, driving the grinding assembly 1 to rotate; the grinding assembly 1 includes a first motor 11 and a grinding component 12; the first motor 11 is connected to the grinding assembly 12, driving the grinding component 12 to move; the rotation adjustment assembly 2 includes a first plate 21, a second motor 22, and a support base 23; the support base 23 is rotatably connected to the surface of the first plate 21; the grinding assembly 1 is mounted on the support base 23; the second motor 22 is mounted on the first plate 21; the output end of the second motor 22 is mechanically driven by the support base 23, and the second motor 22 drives the support base 23 to rotate, thereby driving the grinding component 12; optionally, the second motor 22... The harmonic reducer is connected to the support base 23 to improve the rotation accuracy of the support base 23; the rotation adjustment component 2 is set on the linear adjustment component 3, and the linear adjustment component 3 drives the rotation adjustment component 2 to move linearly, thereby adjusting the position of the grinding part 12; the linear adjustment component 3 includes a first linear movement structure 31; the movable end of the first linear movement structure 31 is connected to the first plate 21. Optionally, the first linear movement structure 31 can be a cylinder, a lead screw slide, etc. Preferably, the first linear movement structure 31 is a lead screw slide, which has high adjustment accuracy, fast response speed, and strong load-bearing capacity; the control system is electrically connected to the first motor 11, the second motor 22, and the first linear movement structure 31. Optionally, the control system is the control system of a CNC sander, and the first motor 11 and the second motor 22 are both servo motors. In addition, it should be noted that the connection method between the control system and the first motor, the second motor, and the first linear movement structure is a conventional connection. The specific models of the control system, the first motor, the second motor, and the first linear movement structure are not improvements of this application and will not be described in detail here.
[0027] Work style: During grinding, the first motor 11 is started, which drives the grinding component 12 to run. Then, the control system controls the first linear movement structure 31 and the second motor 22 to run. The first linear movement structure 31 drives the grinding component 12 to make linear movements, changing the position of the grinding component 12 on the straight line, so that the grinding component 12 can grind the straight part. The second motor 22 drives the grinding component 12 to rotate, changing the angle of the grinding component 12, so that the grinding component 12 can grind the curved part, effectively improving the overall flexibility and expanding the grinding range of the grinding component 12. It can realize both linear grinding and curved grinding, and is suitable for different types of workpieces.
[0028] like Figures 2 to 6 As shown, preferably, the linear adjustment assembly 3 further includes a third linear movement structure 32; the movable end of the third linear movement structure 32 is connected to the fixed part of the first linear movement structure 31, driving the first linear movement structure 31 to move; the movement direction of the movable end of the third linear movement structure 32 is perpendicular to the movement direction of the movable end of the first linear movement structure 31, and the third linear movement structure 32 drives the first linear movement structure 31 to move in another direction, thereby driving the grinding component 12 to move, further expanding the movement range and grinding range of the grinding component 12, and improving the overall flexibility; the third linear movement structure 32 can be a cylinder, a lead screw slide, etc., preferably, the third linear movement structure 32 is a lead screw slide, which has high adjustment accuracy, fast response speed, and strong load-bearing capacity; the second linear movement structure 32 is connected to the control system circuit, and the control system controls the operation of the second linear movement structure 32.
[0029] like Figures 2 to 6As shown, preferably, the linear adjustment assembly 3 further includes a fourth linear movement structure 33; the movable end of the fourth linear movement structure 33 is connected to the fixed part of the third linear movement structure 32, driving the third linear movement structure 32 to move. The fourth linear movement structure 33 can be a cylinder, a lead screw slide, etc. Preferably, the fourth linear movement structure 33 is a lead screw slide, which has high adjustment accuracy, fast response speed, and strong load-bearing capacity; the fourth linear movement structure 33 is connected to the control system circuit; the movement directions of the movable ends of the first linear movement structure 31, the third linear movement structure 32, and the fourth linear movement structure 33 are mutually perpendicular, that is, the movable ends of the first linear movement structure 31, the third linear movement structure 32, and the fourth linear movement structure 33 constitute three-dimensional movement along the horizontal axis, the vertical axis, and the center axis. Linear movement structure 31, third linear movement structure 32, and fourth linear movement structure 33 drive the grinding component 12 to move, further improving overall flexibility and expanding the movement range and grinding range of the grinding component 12. In this embodiment, the first linear movement structure 31 is vertically distributed, and its movable end moves in the vertical direction. The fixed part of the first linear movement structure 31 is connected to the top surface of the movable end of the third linear movement structure 32, and the fixed part of the third linear movement structure 32 moves to the top surface of the movable end of the third linear movement structure 33. In addition, it should be noted that the connection method between the control system and the third and fourth linear movement structures is a conventional connection. The specific models of the third and fourth linear movement structures are not improvements of this application and will not be described in detail here.
[0030] like Figures 2 to 6 As shown, preferably, the first plate 21 is vertically distributed; the plate surface of the first plate 21 is connected to the movable end side of the first linear moving structure 31, so that the second motor 22 drives the support base 23 to rotate in the vertical direction.
[0031] like Figures 2 to 6 As shown, preferably, the linear adjustment assembly 3 also includes a base 34; the fixed part of the fourth linear movement structure 33 is disposed on the base 34, the base 34 supports the fourth linear movement structure 33, and at the same time increases the overall height.
[0032] Example 2: like Figures 2 to 6 Compared with Embodiment 1, the difference lies in that a structural form of the support base 23 is given; the support base 23 includes a second plate 231, a third plate 232 and a fourth plate 233; the plate surface of the second plate 231 is rotatably connected to the plate surface of the first plate 21, and the other plate surface of the second plate 231 is connected to one end of the third plate 232, that is, the plate surface of the second plate 231 is parallel to the plate surface of the first plate 21; the end of the third plate 232 away from the second plate 231 is connected to the fourth plate 233; the grinding assembly 1 is set on the fourth plate 233, and the overall structure is simple.
[0033] like Figures 2 to 6 As shown, preferably, the support base 23 further includes a third motor 234 and a fifth plate 235; the surface of the third plate 232 is perpendicular to the surface of the fourth plate 233; the third plate 232 is connected to the fourth plate 233 through the third motor 234 and the fifth plate 235; a through slot is provided on the surface of the fourth plate 233 to accommodate the third motor 234 and the fifth plate 235; one end of the third plate 232 away from the second plate 231 extends into the slot, optionally, the end of the third plate 232 connected to the second plate 231 is higher than the end of the third plate 232 extending into the slot; the third motor 234 is disposed on the surface of the third plate 232 and located within the slot; the length direction of the third motor 234 is perpendicular to the length direction of the fourth plate 233. The length direction is consistent; the output end of the third motor 234 is mechanically connected to the surface of the fifth plate 235, driving the fifth plate 235 to rotate. Optionally, the third motor 234 is connected to the fifth plate 235 through a harmonic reducer. The third motor 234 is a servo motor to improve the rotation accuracy of the fifth plate 235. The surface of the fifth plate 235 is parallel to the surface of the third plate 232. The surface of the second plate 231 is perpendicular to the surface of the fourth plate 233. The surface of the fifth plate 235 away from the third motor 234 is connected to the fourth plate 233. The fourth plate 233 rotates with the fifth plate 235, thereby driving the grinding component 12 to rotate in the horizontal direction, further improving flexibility. The control system is electrically connected to the third motor 234. In addition, it should be noted that the connection method between the third motor and the control system and the fifth plate 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.
[0034] Work style: In use, the rotation of the grinding component 12 in the vertical and horizontal directions is adjusted by the second motor 22 and the third motor 234 respectively. The second motor 22 drives the second plate 231 to rotate, and the third plate 232, the fourth plate 233 and the fifth plate 235 rotate together, thereby driving the grinding component 12 to rotate in the vertical direction. The third motor 234 drives the fifth plate 235 to rotate, and the fourth plate 233 rotates with the fifth plate 235, thereby driving the grinding component 12 to rotate in the horizontal direction. The overall flexibility is high, effectively reducing the grinding of curved parts, and it is suitable for a variety of different workpieces.
[0035] like Figure 4 and Figure 6As shown, preferably, the support base 23 further includes a sixth plate 236; the fifth plate 235 is connected to the fourth plate 233 through the sixth plate 236; the surface of the fifth plate 235 away from the third motor 234 is connected to one end of the sixth plate 236; the side of the sixth plate 236 is connected to the fourth plate 233, and the sixth plate 236 drives the fourth plate 233 to rotate; the sixth plate 236 and the fourth plate 233 can be connected by bolts, which facilitates the installation of the fifth plate 234 and the third motor 234.
[0036] Example 3: like Figures 2 to 6 As shown, compared with Embodiment 2, the difference lies in that a structural form of the grinding component 12 is provided; the grinding component 12 includes a driving pulley 121, a driven pulley 122, and an abrasive belt 123; the output end of the first motor 11 is mechanically connected to the driving pulley 121, or optionally, the output end of the first motor 11 is directly connected to the driving pulley 121; the driven pulley 122 is rotatably mounted on the support base 23; the length direction of the center line of the driving pulley 121 and the driven pulley 122 is consistent with the height direction of the support base 23; the abrasive belt 123 is connected to the driving pulley 121 and the driven pulley 122, and the driving pulley 121 and the driven pulley 122 keep the abrasive belt 123 taut; the first motor 11 drives the driving pulley 121 to rotate, and the driven pulley 122 rotates with the driving pulley 121, causing the abrasive belt 123 to move at high speed, and the abrasive belt 123 contacts the outer surface of the workpiece to grind the workpiece.
[0037] like Figures 2 to 4 As shown, preferably, the driven pulley 122 includes a small driven pulley 1221; the number of small driven pulleys 1221 is at least two; there is a gap between the small driven pulleys 1221 to improve the diversity of the polishing process, so that the abrasive belt 123 can better polish the curved surface, mainly for workpieces with large curved surfaces.
[0038] like Figure 5 and Figure 6 As shown, preferably, the driven pulley 122 can be a large driven pulley 1222; the number of large driven pulleys 1222 is one, so that the abrasive belt 123 can better polish the straight part, mainly for workpieces with large straight areas. The small driven pulley 1221 and the large driven pulley 1222 can be switched according to the specific workpiece being processed.
[0039] like Figure 2 , Figure 3 and Figure 5As shown, preferably, the grinding component 12 further includes a connecting plate 124; the driven pulley 122 is detachably connected to the support base 23 via the connecting plate 124; the driven pulley 122 is rotatably mounted on the connecting plate 124; the connecting plate 124 and the support base 23 are detachably connected by bolts to facilitate the replacement of the large driven pulley 1222 and the small driven pulley 1221.
[0040] like Figure 2 , Figure 3 and Figure 5 As shown, preferably, the grinding assembly 1 further includes a movable plate 13 and a second linear movement structure 14; a first motor 11 is slidably mounted on a fourth plate 233 via the movable plate 13; one end of the movable plate 13 is connected to the first motor 11, and the other end of the movable plate 13 is slidably connected to the fourth plate 233; the second linear movement structure 14 is mounted on the fourth plate 233, and the second linear movement structure 233 can be an electric push rod, a cylinder, a hydraulic rod, etc. Preferably, the fourth linear movement structure 14 is a cylinder, which has a fast response speed; the moving direction of the movable end of the movable plate 13 and the second linear movement structure 14 is consistent with the length direction of the fourth plate 233; the second linear movement structure 14 is connected to the movable plate 13, driving the movable plate 13 to slide; the control system is electrically connected to the second linear movement structure 14; the fourth linear movement structure 14 is connected to the movable plate 13, and the fourth linear movement structure 14 drives the movable plate 13 to move, the first motor 11 moves with the movable plate 13, and adjusts the position of the drive pulley 121 to facilitate the installation of the sanding belt 123.
[0041] 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 polishing mechanism for a numerically controlled sander, characterized by, include: Grinding assembly (1); the grinding assembly (1) includes a first motor (11) and a grinding component (12); the first motor (11) is connected to the grinding component (12) and drives the grinding component (12) to move; A rotation adjustment assembly (2) that drives the grinding assembly (1) to rotate; the rotation adjustment assembly (2) includes a first plate (21), a second motor (22) and a support base (23); the support base (23) is rotatably connected to the surface of the first plate (21); the second motor (22) is disposed on the first plate (21); the output end of the second motor (22) is mechanically connected to the support base (23) to drive the support base (23) to rotate; the grinding assembly (1) is disposed on the support base (23); A linear adjustment component (3) that drives the rotation adjustment component (2) to move linearly; the linear adjustment component (3) includes a first linear movement structure (31); the movable end of the first linear movement structure (31) is connected to the first plate (21); Control system; the control system is electrically connected to the grinding assembly (1), the second motor (22), and the linear adjustment assembly (3).
2. The polishing mechanism for a numerically controlled sander according to claim 1, wherein The support base (23) includes a second plate (231), a third plate (232), and a fourth plate (233); the surface of the second plate (231) is rotatably connected to the surface of the first plate (21), and the other surface of the second plate (231) is connected to one end of the third plate (232); the end of the third plate (232) away from the second plate (231) is connected to the fourth plate (233); the polishing assembly (1) is disposed on the fourth plate (233).
3. The grinding mechanism for a CNC sander according to claim 2, characterized in that, The support base (23) further includes a third motor (234) and a fifth plate (235); the third plate (232) is connected to the fourth plate (233) through the third motor (234) and the fifth plate (235); the plate surface of the third plate (232) is perpendicular to the plate surface of the fourth plate (233); a through slot is provided on the plate surface of the fourth plate (233); one end of the third plate (232) away from the second plate (231) extends into the slot; the third motor (234) is disposed on the third plate (232). The third motor (234) is located on the plate surface of the fourth plate (233) and is located in the slot. The length direction of the third motor (234) is consistent with the length direction of the fourth plate (233). The output end of the third motor (234) is mechanically connected to the plate surface of the fifth plate (235) to drive the fifth plate (235) to rotate. The plate surface of the fifth plate (235) is parallel to the plate surface of the third plate (232). The plate surface of the fifth plate (235) away from the third motor (234) is connected to the fourth plate (233). The control system is electrically connected to the third motor (234).
4. The grinding mechanism for a CNC sander according to claim 3, characterized in that, The support base (23) also includes a sixth plate (236); the fifth plate (235) is connected to the fourth plate (233) through the sixth plate (236); the surface of the fifth plate (235) away from the third motor (234) is connected to one end of the sixth plate (236); the side of the sixth plate (236) is connected to the fourth plate (233).
5. The grinding mechanism for a CNC sander according to claim 1, characterized in that, The grinding component (12) includes a drive pulley (121), a driven pulley (122), and a sanding belt (123); the output end of the first motor (11) is mechanically connected to the drive pulley (121); the driven pulley (122) is rotatably mounted on the support base (23); the length direction of the center line of the drive pulley (121) and the driven pulley (122) is consistent with the height direction of the support base (23); the sanding belt (123) is connected to the drive pulley (121) and the driven pulley (122), and the drive pulley (121) and the driven pulley (122) keep the sanding belt (123) taut.
6. The grinding mechanism for a CNC sander according to claim 5, characterized in that, The grinding component (12) also includes a connecting plate (124); the driven pulley (122) is detachably connected to the support base (23) through the connecting plate (124); the driven pulley (122) is rotatably mounted on the connecting plate (124); the connecting plate (124) is detachably connected to the support base (23).
7. The grinding mechanism for a CNC sander according to claim 5, characterized in that, The grinding assembly (1) further includes a movable plate (13) and a second linear movement structure (14); the first motor (11) is slidably mounted on the support base (23) via the movable plate (13); one end of the movable plate (13) is connected to the first motor (11), and the other end of the movable plate (13) is slidably connected to the support base (23); the second linear movement structure (14) is mounted on the support base (23); the moving direction of the movable end of the movable plate (13) and the second linear movement structure (14) is consistent with the length direction of the support base (23); the second linear movement structure (14) is connected to the movable plate (13) and drives the movable plate (13) to slide; the control system is electrically connected to the second linear movement structure (14).
8. The grinding mechanism for a CNC sander according to claim 1, characterized in that, The first plate (21) is vertically distributed; the plate surface of the first plate (21) is connected to the movable end of the first linear moving structure (31).
9. The grinding mechanism for a CNC sander according to any one of claims 1-8, characterized in that, The linear adjustment component (3) further includes a third linear movement structure (32); the movable end of the third linear movement structure (32) is connected to the fixed part of the first linear movement structure (31) to drive the first linear movement structure (31) to move; the movement direction of the movable end of the third linear movement structure (32) is perpendicular to the movement direction of the movable end of the first linear movement structure (31).
10. The grinding mechanism for a CNC sander according to claim 9, characterized in that, The linear adjustment component (3) further includes a fourth linear movement structure (33); the movable end of the fourth linear movement structure (33) is connected to the fixed part of the third linear movement structure (32), driving the third linear movement structure (32) to move; the movement directions of the movable ends of the first linear movement structure (31), the third linear movement structure (32), and the fourth linear movement structure (33) are perpendicular to each other.