Sanding machine
By introducing first and second vibration damping mechanisms into the sander, the vibration energy is absorbed by the relative motion of the connecting bodies and the buffer structure, which solves the problem of strong vibration of the grinding disc and achieves better vibration damping effect and grinding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG BURLEY TOOLS
- Filing Date
- 2026-03-05
- Publication Date
- 2026-04-14
AI Technical Summary
In existing sanders, the grinding disc is directly and rigidly connected to the drive mechanism, resulting in strong vibration and poor vibration reduction.
The first and second vibration damping mechanisms are respectively connected between the drive mechanism and the first connecting body, and between the second connecting body and the housing. The vibration is reduced by the relative movement of the first and second connecting bodies, and the vibration energy is absorbed during the movement. Combined with the buffering effect of the first and second vibration damping mechanisms, the vibration damping effect is improved.
It effectively reduces the vibration intensity of the grinding disc, improves the vibration reduction effect, enhances the stability and grinding quality of the grinding process, extends the service life of the force transmission parts, and improves operating efficiency.
Smart Images
Figure CN121848264A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of tools, specifically relating to a sanding machine. Background Technology
[0002] In related technologies, sanders directly connect the grinding disc base to the machine housing through a vibration damping structure, and the grinding disc base is connected to an eccentric structure. In this way, under the driving action of the eccentric structure, the grinding disc base and the grinding disc installed thereon can move in multiple directions in the plane to facilitate the grinding of the workpiece.
[0003] However, the above method results in a direct rigid connection between the eccentric structure and the grinding disc, which easily generates strong vibrations. These vibrations cannot be fully absorbed by the vibration damping structure connected between the grinding disc and the machine housing, thus failing to achieve a good vibration damping effect. Summary of the Invention
[0004] The purpose of this application is to provide a sanding machine that can solve problems such as strong vibration of the grinding disc and poor vibration reduction effect.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows: This application provides a sanding machine, including: a housing, a drive mechanism, a first vibration damping mechanism, a second vibration damping mechanism, a first connecting body, a second connecting body, and a grinding disc; The drive mechanism is located inside the housing, and the drive end of the drive mechanism is connected to the first connecting body to drive the first connecting body to move in a plane. The first connector is connected to the second connector, and the two can move relative to each other; The grinding disc is connected to the second connecting body; The first vibration damping mechanism is connected between the first connecting body and the housing; The second vibration damping mechanism is connected between the second connecting body and the housing.
[0006] In this embodiment, the drive mechanism and the grinding disc are connected via a first connector and a second connector, so that the power of the drive mechanism is transmitted to the grinding disc to cause the grinding disc to move. Furthermore, the first damping mechanism can support the first connector and dampen vibrations between the first connector and the housing; the second damping mechanism can support the second connector and dampen vibrations between the second connector and the housing. Based on the above configuration, this embodiment does not directly and rigidly connect the drive mechanism to the second connector on which the grinding disc is mounted. Instead, a first connector is added between the drive mechanism and the second connector, and the first and second connectors can move relative to each other. This makes the connection between the drive mechanism and the second connector no longer rigid, thus effectively reducing the vibration borne by the second connector through the relative movement between the first and second connectors, which helps to reduce the vibration intensity. Furthermore, with the combined action of the first and second damping mechanisms, the vibration energy generated during the power and motion transmission process can be absorbed more fully, thereby further improving the damping effect. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the overall structure of the sander disclosed in the embodiments of this application; Figure 2 This is a schematic cross-sectional view of the sander disclosed in the embodiments of this application; Figure 3 This is a partial cross-sectional schematic diagram of the sander disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the sander disclosed in the embodiments of this application; Figure 5 This is a partial schematic diagram of the casing disclosed in an embodiment of this application; Figure 6 This is a schematic diagram of the first vibration damping mechanism, the second vibration damping mechanism, the first connecting body, the second connecting body, the grinding disc, and other structures disclosed in the embodiments of this application; Figure 7 This is a first-view view of the first connector disclosed in the embodiments of this application; Figure 8 This is a second perspective view of the first connector disclosed in the embodiments of this application; Figure 9 This is a schematic diagram of the structures such as the second connecting body, grinding disc, and second vibration damping mechanism disclosed in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the second connector disclosed in an embodiment of this application.
[0008] Explanation of reference numerals in the attached figures: 10-Casing; 11-First groove; 12-Second groove; 20-Drive mechanism; 21-Drive motor; 22-Eccentric wheel; 30 - First vibration damping mechanism; 31 - First fixing block; 32 - Second fixing block; 33 - First connecting column; 40 - Second vibration damping mechanism; 41 - Third fixing block; 42 - Fourth fixing block; 43 - Second connecting column; 50 - First connecting body; 51 - Guide groove; 52 - First mounting groove; 53 - Third mounting groove; 54 - Transmission groove; 60 - Second connector; 61 - Guide protrusion; 62 - Second mounting groove; 70 - Grinding disc; 80-Washer; 91 - First fastener; 92 - Second fastener; 93 - Third fastener; 94 - Fourth fastener. Detailed Implementation
[0009] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0010] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0011] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.
[0012] refer to Figures 1 to 10 This application discloses a sander for polishing objects. The disclosed sander includes a housing 10, a drive mechanism 20, a first vibration damping mechanism 30, a second vibration damping mechanism 40, a first connecting body 50, a second connecting body 60, and a grinding disc 70.
[0013] The housing 10 is a basic component, providing a support and mounting base for components such as the drive mechanism 20, the first vibration damping mechanism 30, the second vibration damping mechanism 40, the first connecting body 50, the second connecting body 60, and the grinding disc 70. The drive mechanism 20, the first vibration damping mechanism 30, and the second vibration damping mechanism 40 can all be housed within the housing 10. The housing 10 provides space for these components and also offers some protection against adverse effects from the external environment.
[0014] Optionally, the housing 10 may have an opening, and the second connector 60 may be located at the opening of the housing 10.
[0015] The drive mechanism 20 is a power component with a drive end connected to the first connecting body 50 to drive the first connecting body 50 to move in a plane.
[0016] Optionally, the drive end can perform rotational or translational motion, and the specific motion form can be selected according to actual needs. When the drive end performs rotational motion, it can be converted into planar motion through other components to drive the first connecting body 50 to move in the plane. In this case, the rotation axis of the drive end can be perpendicular to the plane. When the drive end performs translational motion, it can directly drive the first connecting body 50 to move in the plane. In this case, the direction of motion of the drive end can be parallel to the plane.
[0017] The first vibration damping mechanism 30 is connected between the first connecting body 50 and the housing 10. The first vibration damping mechanism 30 supports the first connecting body 50 and also acts as a buffer and vibration damping mechanism between the first connecting body 50 and the housing 10. This reduces vibration energy during the movement of the first connecting body 50 and reduces the vibration energy directly transmitted to the housing 10, thereby alleviating the problem of hand vibration during the use of the sander.
[0018] Optionally, the first damping mechanism 30 may include a flexible or elastic element, which can both support the first connecting body 50 and allow the first connecting body 50 to follow the movement of the drive end without interfering with the movement of the first connecting body 50 in the plane; and, during the movement of the first connecting body 50, the flexible or elastic element can deform to absorb part of the vibration energy.
[0019] The first connecting body 50 and the second connecting body 60 are connected and can move relative to each other. It should be noted that when the drive mechanism 20 drives the first connecting body 50 to move in a plane, the first connecting body 50 and the second connecting body 60 can have a relative floating amount. When the movement range of the first connecting body 50 is within a preset movement range, the first connecting body 50 can move independently; conversely, when the movement range of the first connecting body 50 exceeds the preset movement range, the first connecting body 50 can drive the second connecting body 60 to move together. The specific connection method between the first connecting body 50 and the second connecting body 60 will be described in detail below.
[0020] The second vibration damping mechanism 40 is connected between the second connecting body 60 and the housing 10. The second connecting body 60 is supported by the second vibration damping mechanism 40. It can also buffer and dampen the vibration between the second connecting body 60 and the housing 10, thereby reducing the vibration energy during the movement of the second connecting body 60 and reducing the vibration energy directly transmitted to the housing 10. This can alleviate the problem of hand vibration during the use of the sander.
[0021] Optionally, the second vibration damping mechanism 40 may include a flexible or elastic element, which can both support the second connecting body 60 and allow the second connecting body 60 to move when driven by the first connecting body 50 without interfering with the movement of the second connecting body 60; and during the movement of the second connecting body 60, the flexible or elastic element can deform and absorb some of the vibration energy.
[0022] The grinding disc 70 is connected to the second connecting body 60 so that the grinding disc 70 can be driven to move through the second connecting body 60, thereby grinding the object through the movement of the grinding disc 70.
[0023] In this embodiment, the drive mechanism 20 and the grinding disk 70 are connected by a first connector 50 and a second connector 60, so that the power output by the drive mechanism 20 is transmitted to the grinding disk 70 through the first connector 50 and the second connector 60, thereby causing the grinding disk 70 to move; furthermore, the first vibration damping mechanism 30 can bear the first connector 50 and play a vibration damping role between the first connector 50 and the housing 10, and the second vibration damping mechanism 40 can bear the second connector 60 and play a vibration damping role between the second connector 60 and the housing 10.
[0024] Based on the above configuration, this embodiment does not directly and rigidly connect the drive mechanism 20 to the second connecting body 60 on which the grinding disc 70 is mounted. Instead, a first connecting body 50 is added between the drive mechanism 20 and the second connecting body 60, and the first connecting body 50 and the second connecting body 60 can move relative to each other. This makes the drive mechanism 20 and the second connecting body 60 no longer rigidly connected. Thus, the relative movement between the first connecting body 50 and the second connecting body 60 can effectively reduce the vibration borne by the second connecting body 60, thereby helping to reduce the vibration intensity. Furthermore, with the combined action of the first damping mechanism 30 and the second damping mechanism 40, the vibration energy generated during the power and motion transmission process can be absorbed more fully, thereby further improving the damping effect.
[0025] In some embodiments, the first connecting body 50 can be movable in a plane along a first direction to drive the second connecting body 60 to move in the first direction, and the second connecting body 60 drives the grinding disc 70 to move to grind the object. Alternatively, the first connecting body 50 can also be movable in a plane along a second direction, so that the first connecting body 50 and the second connecting body 60 can move relative to each other in the second direction to prevent motion interference between the first connecting body 50 and the second connecting body 60.
[0026] The first direction and the second direction can be intersected. Optionally, the first direction and the second direction can be perpendicular to each other. Of course, in other embodiments, the angle between the first direction and the second direction can be other than 90°, which can be set according to the actual motion requirements.
[0027] It should be noted that, under the driving action of the driving end of the driving mechanism 20, the first connecting body 50 can move in the plane along both the first direction and the second direction. Only when the first connecting body 50 moves along the first direction (or has a component of movement in the first direction) can it drive the second connecting body 60 and the grinding disc 70 to move and achieve grinding of the object. When the first connecting body 50 moves along the second direction, it will not drive the second connecting body 60 and the grinding disc 70 to move along the second direction. Therefore, the sander in this embodiment mainly achieves the grinding effect on the object through the grinding disc 70 moving along the first direction. This can make the grinding pressure more uniform, which can be more beneficial to the grinding surface to a certain extent, resulting in better grinding effect. It can also reduce the wear of the force transmission part (i.e., the connection between the first connecting body 50 and the second connecting body 60), extend the service life of the force transmission part, and help improve operating efficiency.
[0028] In some embodiments, one of the first connector 50 and the second connector 60 may be provided with at least one guide groove 51, such as Figure 8As shown, each guide groove 51 extends along the second direction. Optionally, there may be one or more guide grooves 51. When there are multiple guide grooves 51, they may be distributed around the drive end.
[0029] For example, the guide groove 51 can be an elongated groove that extends along the second direction. Alternatively, the guide groove 51 can be a blind groove or a through groove, which can be set according to actual needs.
[0030] The other of the first connector 50 and the second connector 60 may be provided with at least one guide protrusion 61, such as Figure 9 As shown, each guide protrusion 61 is correspondingly provided in the guide groove 51, and each guide protrusion 61 is movable in the corresponding guide groove 51 along the second direction.
[0031] Optionally, the guide protrusion 61 can be a guide post, guide pin, or other component.
[0032] Based on the above configuration, when the first connector 50 moves in the first direction, the groove wall of the guide groove 51 and the outer wall of the guide protrusion 61 can press against each other, thereby driving the second connector 60 to move in the first direction along with the first connector 50, and the second connector 60 drives the grinding disc 70 to move in the first direction; when the first connector 50 moves in the second direction, the guide protrusion 61 moves in the guide groove 51 along the second direction. In this case, the groove wall of the guide groove 51 cannot press against the outer wall of the guide protrusion 61, thereby preventing the second connector 60 from moving in the second direction.
[0033] refer to Figure 4 and Figure 6 In some embodiments, the first vibration damping mechanism 30 may include a first fixing block 31, a second fixing block 32, and a first connecting post 33. The first fixing block 31 is connected to the inner wall of the housing 10, the second fixing block 32 is connected to the first connecting body 50, and the first connecting post 33 connects the first fixing block 31 and the second fixing block 32. Thus, the first fixing block 31, the second fixing block 32, and the first connecting post 33 can cooperate to support the first connecting body 50.
[0034] Furthermore, at least one of the first fixing block 31, the second fixing block 32, and the first connecting column 33 can be a deformable structure. In this way, when the driving mechanism 20 drives the first connecting body 50 to move in the plane, at least one of the first fixing block 31, the second fixing block 32, and the first connecting column 33 can deform to adapt to the movement of the first connecting body 50 in the plane, so as to prevent interference with the movement of the first connecting body 50.
[0035] Optionally, the first fixing block 31 can be an elastic block, such as a rubber block or a soft plastic block; the second fixing block 32 can be an elastic block, such as a rubber block or a soft plastic block; and the first connecting post 33 can be an elastic post, such as a rubber post or a soft plastic post.
[0036] Optionally, the first connecting post 33 can be fixedly connected to the first fixing block 31 and the second fixing block 32, such as by bonding, welding, riveting, etc., or it can be detachably connected, such as by screwing, plugging, snapping, etc. Of course, the first connecting post 33, the first fixing block 31 and the second fixing block 32 can also be an integral structure.
[0037] In some embodiments, the first fixing block 31 is detachably connected to the inner wall of the housing 10 to facilitate the installation and removal of the first fixing block 31.
[0038] Optionally, such as Figure 5 As shown, the inner wall of the housing 10 may be provided with a first groove 11, and at least a portion of the first fixing block 31 may be embedded in the first groove 11 so that the groove wall of the first groove 11 can play a limiting role around the first fixing block 31.
[0039] Alternatively, a third fastener 93 can be used to securely connect the first fixing block 31 to the inner wall of the housing 10, which ensures the installation stability of the first fixing block 31 and facilitates disassembly and assembly. Optionally, the third fastener 93 can be a fastening screw.
[0040] In some embodiments, the second fixing block 32 is detachably connected to the first connecting body 50 to facilitate the installation and removal of the second fixing block 32.
[0041] Optionally, refer to Figure 4 , Figure 6 and Figure 7 The first connector 50 may have a first mounting groove 52 on the side opposite to the second connector 60. At least a portion of the second fixing block 32 is embedded in the first mounting groove 52 so that the groove wall of the first mounting groove 52 can play a limiting role around the second fixing block 32.
[0042] Alternatively, a first fastener 91 can be used to securely connect the second fixing block 32 to the first connecting body 50, which ensures the installation stability of the second fixing block 32 and facilitates disassembly and assembly. Optionally, the first fastener 91 can be a fastening screw.
[0043] like Figure 7As shown, in some specific embodiments, the first connecting body 50 can be a rectangular plate, with first mounting grooves 52 at its four corners, and a second fixing block 32 can be embedded in each first mounting groove 52. The second fixing blocks 32 at two corners can be connected to the two ends of one of the first fixing blocks 31 via first connecting posts 33; the second fixing blocks 32 at the other two corners can be connected to the two ends of the other first fixing block 31 via first connecting posts 33. Of course, in other embodiments, one first fixing block 31 can correspond to one second fixing block 32.
[0044] refer to Figure 4 , Figure 6 and Figure 9 In some embodiments, the second vibration damping mechanism 40 may include a third fixing block 41, a fourth fixing block 42, and a second connecting column 43. The third fixing block 41 is connected to the inner wall of the housing 10, the fourth fixing block 42 is connected to the second connecting body 60, and the second connecting column 43 connects the third fixing block 41 and the fourth fixing block 42. Thus, the third fixing block 41, the fourth fixing block 42, and the second connecting column 43 can cooperate to support the second connecting body 60.
[0045] Furthermore, at least one of the third fixing block 41, the fourth fixing block 42, and the second connecting post 43 can be a deformable structure. In this way, when the first connecting body 50 drives the second connecting body 60, at least one of the third fixing block 41, the fourth fixing block 42, and the second connecting post 43 can deform to adapt to the movement of the second connecting body 60 and prevent interference with the movement of the second connecting body 60.
[0046] Optionally, the third fixing block 41 can be an elastic block, such as a rubber block or a soft plastic block; the fourth fixing block 42 can be an elastic block, such as a rubber block or a soft plastic block; and the second connecting column 43 can be an elastic column, such as a rubber column or a soft plastic column.
[0047] Optionally, the second connecting post 43 can be fixedly connected to the third fixing block 41 and the fourth fixing block 42, such as by bonding, welding, riveting, etc., or it can be detachably connected, such as by screwing, plugging, snapping, etc.; of course, the second connecting post 43, the third fixing block 41 and the fourth fixing block 42 can also be an integral structure.
[0048] In some embodiments, the third fixing block 41 is detachably connected to the inner wall of the housing 10 to facilitate the installation and removal of the third fixing block 41.
[0049] Optionally, the inner wall of the housing 10 may be provided with a second groove 12, and at least a portion of the third fixing block 41 may be embedded in the second groove 12 so that the groove wall of the second groove 12 can play a limiting role around the third fixing block 41.
[0050] Alternatively, a fourth fastener 94 can be used to securely connect the third fixing block 41 to the inner wall of the housing 10, which ensures the installation stability of the third fixing block 41 and facilitates disassembly and assembly. Optionally, the fourth fastener 94 can be a fastening screw.
[0051] In some embodiments, the fourth fixing block 42 is detachably connected to the second connector 60 to facilitate the installation and removal of the fourth fixing block 42.
[0052] Optionally, the second connector 60 may have a second mounting groove 62 on the side facing the first connector 50, and at least a portion of the fourth fixing block 42 is embedded in the second mounting groove 62 so as to limit the fourth fixing block 42 around it by means of the groove wall of the second mounting groove 62.
[0053] Alternatively, a second fastener 92 can be used to securely connect the fourth fixing block 42 to the second connecting body 60, which ensures the installation stability of the fourth fixing block 42 and facilitates disassembly and assembly. Optionally, the second fastener 92 can be a fastening screw.
[0054] refer to Figure 4 , Figure 6 , Figure 9 and Figure 10 In some more specific embodiments, the second connecting body 60 can be a rectangular plate, with a second mounting groove 62 at each of its four corners, and a fourth fixing block 42 can be embedded in each second mounting groove 62. The fourth fixing block 42 at each corner can be connected to a third fixing block 41 through a second connecting post 43.
[0055] In some embodiments, the cross-section of the second connecting post 43 can be elongated, and the elongated cross-section extends along the second direction, wherein the first direction and the second direction are intersected, such as being perpendicular to each other.
[0056] Based on the above configuration, the length dimension of the cross section of the second connecting post 43 in the second direction can be increased, thereby increasing the load-bearing capacity of the second connecting post 43 in the second direction. This, in turn, increases the resistance to the second connecting body 60 and the grinding disc 70 in the second direction, making it less likely for the second connecting body 60 to move in the second direction and mainly moving in the first direction. To a certain extent, this can make the grinding more concentrated, which is more beneficial to the grinding surface and makes the grinding effect better.
[0057] Considering the large amount of powder and dust generated during the polishing process, to prevent powder and dust from entering the connection between the first connector 50 and the second connector 60, a third mounting groove 53 can be provided on the side of one of the first connector 50 and the second connector 60 facing the other. A washer 80 is provided in this third mounting groove 53, and the washer 80 is fitted onto the outside of the guide protrusion 61, sealingly connecting the first connector 50 and the second connector 60. Figure 8 and Figure 9 As shown.
[0058] Based on the above configuration, under the sealing effect of the gasket 80, powder and dust cannot enter between the guide protrusion 61 and the guide groove 51, thereby alleviating the problem of powder and dust accumulating at the guide protrusion 61 and the guide groove 51 and hindering the relative movement of the first connector 50 and the second connector 60; in addition, the gasket 80 can also play a certain buffering role between the first connector 50 and the second connector 60 to prevent the first connector 50 and the second connector 60 from colliding.
[0059] refer to Figure 4 , Figure 6 and Figure 7 In some embodiments, the drive mechanism 20 may include a drive motor 21 and an eccentric wheel 22 as the drive end, wherein the shaft of the drive motor 21 is connected to the eccentric wheel 22 for transmission, so as to drive the eccentric wheel 22 to generate eccentric rotation.
[0060] Correspondingly, the side of the first connecting body 50 away from the second connecting body 60 may be provided with a transmission groove 54, and the eccentric wheel 22 is embedded in the transmission groove 54. In this way, when the drive motor 21 drives the eccentric wheel 22 to rotate, the wheel surface of the eccentric wheel 22 can be pressed against the groove wall of the transmission groove 54, thereby driving the first connecting body 50 to move in the plane through the transmission groove 54.
[0061] Optionally, there may be a certain gap between the groove wall of the transmission groove 54 and the wheel surface of the eccentric wheel 22, so that the eccentric wheel 22 can float in the transmission groove 54 during rotation, thereby allowing relative movement between the eccentric wheel 22 and the first connecting body 50 to prevent motion interference.
[0062] It should be noted that the implementation of the drive mechanism 20 driving the first connecting body 50 to move in the plane can also refer to other related technologies, as long as it can be achieved, and the specific transmission method is not limited.
[0063] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A sanding machine, characterized in that, include: The machine housing (10), drive mechanism (20), first vibration damping mechanism (30), second vibration damping mechanism (40), first connecting body (50), second connecting body (60) and grinding disc (70); The drive mechanism (20) is located inside the housing (10), and the drive end of the drive mechanism (20) is connected to the first connecting body (50) to drive the first connecting body (50) to move in the plane; The first connector (50) is connected to the second connector (60), and the two can move relative to each other; The grinding disc (70) is connected to the second connecting body (60); The first vibration damping mechanism (30) is connected between the first connecting body (50) and the housing (10); The second vibration damping mechanism (40) is connected between the second connecting body (60) and the housing (10).
2. The sander according to claim 1, characterized in that, The first connector (50) is movable in the plane along a first direction to drive the second connector (60) to move along the first direction; The first connector (50) is movable in the plane along the second direction, so that the first connector (50) and the second connector (60) can move relative to each other in the second direction; The first direction and the second direction are intersected.
3. The sander according to claim 2, characterized in that, One of the first connector (50) and the second connector (60) is provided with at least one guide groove (51), each of the guide grooves (51) extending along the second direction; The other of the first connector (50) and the second connector (60) is provided with at least one guide protrusion (61), each guide protrusion (61) is provided in the guide groove (51) in a one-to-one correspondence, and each guide protrusion (61) is movable in the corresponding guide groove (51) along the second direction.
4. The sander according to claim 1, characterized in that, The first vibration damping mechanism (30) includes a first fixing block (31), a second fixing block (32), and a first connecting column (33); The first fixing block (31) is connected to the inner wall of the housing (10), the second fixing block (32) is connected to the first connecting body (50), and the first connecting post (33) is connected between the first fixing block (31) and the second fixing block (32); At least one of the first fixing block (31), the second fixing block (32) and the first connecting column (33) is a deformable structure.
5. The sander according to claim 4, characterized in that, The first connector (50) has a first mounting groove (52) on the side opposite to the second connector (60); At least a portion of the second fixing block (32) is embedded in the first mounting groove (52), and the second fixing block (32) is fastened to the first connector (50) by the first fastener (91).
6. The sander according to claim 1, characterized in that, The second vibration damping mechanism (40) includes a third fixing block (41), a fourth fixing block (42), and a second connecting column (43); The third fixing block (41) is connected to the inner wall of the housing (10), the fourth fixing block (42) is connected to the second connecting body (60), and the second connecting column (43) is connected between the third fixing block (41) and the fourth fixing block (42). At least one of the third fixing block (41), the fourth fixing block (42), and the second connecting column (43) is a deformable structure.
7. The sander according to claim 6, characterized in that, The cross-section of the second connecting column (43) is elongated, and the elongated cross-section extends along the second direction.
8. The sander according to claim 6, characterized in that, The second connector (60) has a second mounting groove (62) on the side facing the first connector (50); At least a portion of the fourth fixing block (42) is embedded in the second mounting groove (62), and the fourth fixing block (42) is fastened to the second connector (60) by the second fastener (92).
9. The sander according to claim 3, characterized in that, One of the first connector (50) and the second connector (60) has a third mounting groove (53) on its side facing the other. A washer (80) is provided in the third mounting groove (53). The washer (80) is sleeved on the outside of the guide protrusion (61) and is sealed between the first connector (50) and the second connector (60).
10. The sander according to claim 1, characterized in that, The first connector (50) has a transmission groove (54) on the side opposite to the second connector (60); The drive mechanism (20) includes a drive motor (21) and an eccentric wheel (22) as the drive end. The shaft of the drive motor (21) is connected to the eccentric wheel (22) for transmission. The eccentric wheel (22) is embedded in the transmission groove (54).