Sanding machine convenient to hold by hand

Abstract

The utility model discloses a sanding machine convenient to hold by hand, which comprises a grinding machine shell, a buffering and damping component is arranged on one side of the grinding machine shell, a handheld mounting component is arranged on one side of the buffering and damping component, and a sanding machine mounting component is arranged in the grinding machine shell. The polishing disc is buffered and damped through the buffering and damping assembly, the problems that in the prior art, due to long-time friction between the polishing disc and a workpiece, a polishing machine body vibrates, under long-time use, the hand of a user can ache, polishing of the workpiece is affected, and the workpiece is damaged during polishing are solved, and the workpiece polishing quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of sanding machines, in particular to a sanding machine that is easy to hold in hand. Background Art

[0002] Sanders, also known as grinding wheels, are commonly used to sharpen various knives and tools. They are also used for grinding, deburring, and cleaning ordinary small parts. They are mainly composed of a base, a grinding wheel, an electric motor or other power source, a bracket, a protective cover, and a water dispenser. They can be divided into handheld, vertical, suspended, and desktop types. Currently, handheld grinding wheels, also known as grinders, are used to grind workpieces. When the grinding disc rubs against the workpiece for a long time, it causes the grinding machine to vibrate. After long-term use, the user's hands will become sore, which affects the grinding of the workpiece and causes damage to the workpiece. Therefore, the structure of handheld grinding wheels needs to be improved. Utility Model Content

[0003] In view of the problems in the related art, the utility model provides a handheld sander to overcome the above technical problems existing in the existing related art.

[0004] To this end, the specific technical solutions adopted in this utility model are as follows:

[0005] A handheld sander comprises a grinding wheel machine housing, a buffer shock-absorbing component is provided on one side of the grinding wheel machine housing, a handheld mounting component is provided on one side of the buffer shock-absorbing component, and a sander mounting component is provided inside the grinding wheel machine housing;

[0006] In order to achieve the effect of buffering and shock absorption, the buffering and shock absorption assembly includes a buffering and shock absorption mounting frame, which is fixedly connected to the grinding wheel machine housing, a threaded groove is opened inside the buffering and shock absorption mounting frame, and the internal thread of the threaded groove is matched with a threaded rod, one end of the threaded rod is movably connected to a connecting friction plate through a movable bearing, a buffer damper is connected between the connecting friction plate and the buffering and shock absorption mounting frame, a damping mounting spring is provided on the outer periphery of the buffer damper, and both ends of the damping mounting spring are respectively connected to the buffering and shock absorption mounting frame and the connecting friction plate, a rotating friction ring is connected to the outer periphery of the threaded rod, and the rotating friction ring is in contact with the connecting friction plate.

[0007] Furthermore, a sliding limit groove is provided inside the buffer and shock-absorbing mounting frame, and a sliding rod is slidably fitted inside the sliding limit groove.

[0008] Furthermore, in order to achieve the function of handheld installation, the handheld installation assembly includes a handheld mounting frame, the handheld mounting frame is fixedly connected to the connecting friction plate, a handheld handle is provided on the periphery of the handheld mounting frame, and a fixing bolt is connected between the handheld mounting frame and the handheld handle.

[0009] Furthermore, a holding rubber sleeve is provided on the periphery of the hand-held handle, and the holding rubber sleeve is tightly connected to the hand-held handle.

[0010] Furthermore, in order to achieve the purpose of sanding machine installation, the sanding machine mounting assembly includes a mounting groove, which is located inside the grinding machine housing. A drive motor is installed inside the mounting groove, and the output end of the drive motor is connected to the sanding wheel. A heat dissipation groove is provided on one side of the grinding machine housing.

[0011] Furthermore, power supply batteries are symmetrically installed inside the grinding machine housing.

[0012] Furthermore, a control switch is installed on one side of the handheld handle, and the drive motor is electrically connected to the power supply battery through the control switch.

[0013] The beneficial effects of the utility model are:

[0014] (1) The present invention improves the existing technology. In actual use, the grinding disc is buffered and damped by a buffering and shock-absorbing component, thereby solving the problem in the existing technology that the grinding disc and the workpiece rub for a long time, causing the grinding body to vibrate. After long-term use, the user's hands will become sore, affecting the grinding of the workpiece and causing damage to the workpiece, thereby improving the grinding quality of the workpiece.

[0015] (2) In actual use, the installation slot is provided so as to facilitate the installation of the drive motor. The drive motor can drive the sanding wheel to rotate, and when the sanding wheel rotates, the workpiece can be polished. The power supply battery can supply power to the drive motor, the control switch can facilitate the control of the drive motor, and the heat dissipation slot can dissipate heat for the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the main structure of a handheld sander according to an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of a handheld sander according to an embodiment of the utility model.

[0019] Figure 3 This is a structural schematic diagram of a buffer and shock-absorbing assembly in a handheld sander according to an embodiment of the utility model;

[0020] Figure 4 The utility model is a structural schematic diagram of a sanding machine installation assembly in a handheld sanding machine according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Grinding wheel housing; 2. Buffer and shock-absorbing assembly; 201. Buffer and shock-absorbing mounting bracket; 202. Threaded groove; 203. Threaded rod; 204. Connecting friction plate; 205. Buffer damper; 206. Damping mounting spring; 207. Movable bearing; 208. Rotating friction ring; 3. Hand-held mounting assembly; 301. Hand-held mounting bracket; 302. Hand-held handle; 303. Fixing bolt; 4. Sanding machine mounting assembly; 401. Mounting groove; 402. Drive motor; 403. Sanding wheel; 404. Heat dissipation groove; 5. Sliding limit groove; 6. Sliding rod; 7. Holding rubber sleeve; 8. Power supply battery; 9. Control switch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] According to an embodiment of the present utility model, a hand-held sander is provided, including a grinding machine housing 1, a buffer shock-absorbing component 2 is provided on one side of the grinding machine housing 1, a hand-held mounting component 3 is provided on one side of the buffer shock-absorbing component 2, and a sander mounting component 4 is provided inside the grinding machine housing 1.

[0025] like Figure 1-4 As shown, according to the hand-held sanding machine of the embodiment of the present invention, the buffer shock-absorbing assembly 2 includes a buffer shock-absorbing mounting frame 201, which is fixedly connected to the grinding wheel machine housing 1, and a threaded groove 202 is provided inside the buffer shock-absorbing mounting frame 201. The internal thread of the threaded groove 202 is matched with a threaded rod 203, and one end of the threaded rod 203 is movably connected to a connecting friction plate 204 through a movable bearing 207. A buffer damper 205 is connected between the connecting friction plate 204 and the buffer shock-absorbing mounting frame 201, and a damping mounting spring 206 is provided on the outer periphery of the buffer damper 205. The two ends of the damping mounting spring 206 are respectively connected to the buffer shock-absorbing mounting frame 201 and the connecting friction plate 204, and a rotating friction ring 208 is connected to the outer periphery of the threaded rod 203. The rotating friction ring 208 contacts the connecting friction plate 204, and a sliding limit groove 5 is provided inside the buffer shock-absorbing mounting frame 201. The sliding limit groove 5 is slidably matched with a sliding rod 6.

[0026] Through the above technical solution, when the grinding wheel housing 1 vibrates, the vibration force is transmitted to the buffer shock-absorbing mounting frame 201. When the buffer shock-absorbing mounting frame 201 vibrates, the vibration can be buffered by the buffer damper 205 and the damping mounting spring 206. When the buffer shock-absorbing mounting frame 201 vibrates, the threaded rod 203 is driven by the threaded groove 202 to rotate in the connecting friction plate 204 through the movable bearing 207. When the threaded rod 203 rotates, it can drive the rotating friction ring 208 to rotate. When the rotating friction ring 208 rotates, it can rub against the connecting friction plate 204, further achieving the effect of buffering and shock absorption. By setting the sliding limit groove 5 and the sliding rod 6, the vibration force of the buffer shock-absorbing mounting frame 201 can be stably transmitted vertically.

[0027] like Figure 1-4 As shown, according to the embodiment of the present invention, the handheld sander is easy to hold, and the handheld mounting assembly 3 includes a handheld mounting frame 301, which is fixedly connected to the connecting friction plate 204, and a handheld handle 302 is provided on the periphery of the handheld mounting frame 301. A fixing bolt 303 is connected between the handheld mounting frame 301 and the handheld handle 302, and a holding rubber sleeve 7 is provided on the periphery of the handheld handle 302, which is tightly connected to the handheld handle 302.

[0028] According to the above technical solution, by providing the handheld mounting frame 301, the handheld handle 302 is fixedly connected to the handheld mounting frame 301 through the fixing bolt 303. After the user grasps the handheld handle 302, the sander can be picked up. By providing the gripping rubber sleeve 7, it is convenient to grip the handheld handle 302 tightly through the gripping rubber sleeve 7.

[0029] like Figure 1-4 As shown, according to the hand-held sander of the embodiment of the present invention, the sander mounting assembly 4 includes a mounting slot 401, the mounting slot 401 is located inside the grinding machine housing 1, a drive motor 402 is installed inside the mounting slot 401, the output end of the drive motor 402 is connected to the sanding wheel 403, a heat dissipation slot 404 is provided on one side of the grinding machine housing 1, a power supply battery 8 is symmetrically installed inside the grinding machine housing 1, a control switch 9 is installed on one side of the handheld handle 302, and the drive motor 402 is electrically connected to the power supply battery 8 through the control switch 9.

[0030] Through the above technical solution, by setting the installation groove 401, the purpose of facilitating the installation of the drive motor 402 is achieved. The drive motor 402 can drive the sanding wheel 403 to rotate, and when the sanding wheel 403 rotates, the workpiece can be polished, so that the power supply battery 8 can supply power to the drive motor 402, the control switch 9 can facilitate the control of the drive motor 402, and the heat dissipation groove 404 can dissipate heat for the drive motor 402.

[0031] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0032] In summary, with the help of the above technical solution of the present invention, when the grinding wheel housing 1 vibrates, the vibration force is transmitted to the buffer shock-absorbing mounting frame 201. When the buffer shock-absorbing mounting frame 201 vibrates, the vibration can be buffered by the buffer damper 205 and the damping mounting spring 206. When the buffer shock-absorbing mounting frame 201 vibrates, the threaded rod 203 is driven by the threaded groove 202 to rotate in the connecting friction plate 204 through the movable bearing 207. When the threaded rod 203 rotates, it can drive the rotating friction ring 208 to rotate. When the rotating friction ring 208 rotates, it can rub against the connecting friction plate 204, further achieving the effect of buffering and shock absorption. By providing the sliding limit groove 5 and the sliding rod 6, the vibration force of the buffer shock-absorbing mounting frame 201 can be stably transmitted vertically.

[0033] By providing a handheld mounting frame 301, a handheld handle 302 is fixedly connected to the handheld mounting frame 301 via a fixing bolt 303. After the user grasps the handheld handle 302, the sander can be picked up. By providing a gripping rubber sleeve 7, it is easy to grip the handheld handle 302 through the gripping rubber sleeve 7.

[0034] By providing the mounting groove 401, the purpose of facilitating the installation of the drive motor 402 is achieved. The drive motor 402 can drive the sanding wheel 403 to rotate, and when the sanding wheel 403 rotates, the workpiece can be polished. The power supply battery 8 can supply power to the drive motor 402, the control switch 9 can facilitate the control of the drive motor 402, and the heat dissipation groove 404 can dissipate heat for the drive motor 402.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A handheld sander, characterized in that: The invention comprises a grinding wheel machine housing (1), wherein a buffer shock absorbing assembly (2) is provided on one side of the grinding wheel machine housing (1), a handheld mounting assembly (3) is provided on one side of the buffer shock absorbing assembly (2), and a sanding machine mounting assembly (4) is provided inside the grinding wheel machine housing (1); The buffer and shock absorbing assembly (2) comprises a buffer and shock absorbing mounting frame (201), the buffer and shock absorbing mounting frame (201) being fixedly connected to the grinding wheel machine housing (1), a thread groove (202) being provided inside the buffer and shock absorbing mounting frame (201), a threaded rod (203) being threadedly matched inside the thread groove (202), one end of the threaded rod (203) being movably connected to a connecting friction plate (204) via a movable bearing (207), and the connecting friction plate (204) A buffer damper (205) is connected to the buffer shock absorbing mounting frame (201), a damping mounting spring (206) is provided on the periphery of the buffer damper (205), two ends of the damping mounting spring (206) are respectively connected to the buffer shock absorbing mounting frame (201) and the connecting friction plate (204), a rotating friction ring (208) is connected to the periphery of the threaded rod (203), and the rotating friction ring (208) is in contact with the connecting friction plate (204).

2. A handheld sander according to claim 1, characterized in that: A sliding limit groove (5) is provided inside the buffer and shock-absorbing mounting frame (201), and a sliding rod (6) is slidably fitted inside the sliding limit groove (5).

3. A handheld sander according to claim 2, characterized in that: The handheld mounting assembly (3) comprises a handheld mounting frame (301), the handheld mounting frame (301) is fixedly connected to the connecting friction plate (204), a handheld handle (302) is provided on the periphery of the handheld mounting frame (301), and a fixing bolt (303) is connected between the handheld mounting frame (301) and the handheld handle (302).

4. A handheld sander according to claim 3, characterized in that: A holding rubber sleeve (7) is provided on the periphery of the hand-held handle (302), and the holding rubber sleeve (7) is tightly connected to the hand-held handle (302).

5. The handheld sander according to claim 4, characterized in that: The sanding machine mounting assembly (4) comprises a mounting groove (401), the mounting groove (401) being located inside the grinding machine housing (1), a driving motor (402) being mounted inside the mounting groove (401), a sanding wheel (403) being connected to an output end of the driving motor (402), and a heat dissipation groove (404) being provided on one side of the grinding machine housing (1).

6. The handheld sander according to claim 5, characterized in that: Power supply batteries (8) are symmetrically installed inside the grinding wheel machine housing (1).

7. The handheld sander according to claim 6, characterized in that: A control switch (9) is installed on one side of the handheld handle (302), and the drive motor (402) is electrically connected to the power supply battery (8) through the control switch (9).

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