CN209970389U - Electronic polisher of hand-held type - Google Patents

Abstract

The utility model discloses that the utility model provides a hand-held electric sander, which comprises a power controller and a sanding body connected with the power controller, the power controller supplies power to the sanding body, and the sanding body is provided with Multiple grinding heads. Different grinding work heads are equipped with different types of grinding wheels or small grinding wheel heads, which avoids frequent disassembly and replacement of grinding wheels or small grinding wheel heads, reduces labor intensity and greatly improves work efficiency.

Description

A hand-held electric grinder

technical field

The utility model relates to the technical field of grinding machines, in particular to a hand-held electric grinding machine.

Background technique

In recent years, with the development of my country's chemical industry, electric power and other fields, the processing industry is growing, processing tools are becoming more and more diverse, and people's applications and requirements for processing tools are also increasing. Among them, grinding and polishing is an indispensable part of the processing steps, and people's requirements for the high quality and aesthetics of the processed surface, the grinding and polishing tools are naturally emerging one after another. For example, today's country attaches great importance to the safety of industrial production and equipment use. Among them, metallographic analysis is widely used in the inspection of various metal equipment due to its unique macro and micro characterization of materials and convenient on-site operation. As we all know, samples need to be prepared before metallographic analysis. On-site metallographic inspection needs to be directly polished and corroded on the equipment to be inspected. Finally, the structure is observed with a metallographic microscope. During grinding, different grinding wheel heads should be replaced according to different surface roughness requirements. The grinding machine can only use one type of grinding wheel at a time, which is cumbersome to disassemble and replace, which reduces efficiency, is not convenient to use, and has low safety.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the present utility model provides a hand-held electric grinder, which has a plurality of grinding work heads and does not require frequent replacement of the grinding wheel heads.

The technical scheme adopted by the utility model to solve its technical problems is:

A hand-held electric sander includes a power controller and a sanding body connected with the power controller, the power controller supplies power to the sanding body, and the sanding body is provided with a plurality of sanding working heads.

As an improvement of the above technical solution, the grinding head includes a casing, a drive motor, a transmission rod and a clamping portion sequentially arranged in the casing from top to bottom, and a circular hole is provided in the middle of the clamping portion.

As an improvement of the above technical solution, different types of grinding wheel discs or small grinding wheel heads can be installed on the grinding work head.

As an improvement of the above technical solution, a sub-control switch is further provided on the casing, and the sub-control switch is respectively connected with the driving motor and the power supply controller.

As an improvement of the above technical solution, the power supply controller includes a battery, a general control switch and a speed regulating knob connected to the battery in sequence.

As an improvement of the above technical solution, the included angle between the output end of the grinding head and the grinding body is 90° to 150°.

As an improvement of the above technical solution, the included angle between the output end of the grinding head and the grinding body is 120°.

As an improvement of the above technical solution, the surface of the grinding body is provided with several grooves.

The beneficial effects of the present utility model are:

The hand-held electric grinder of the utility model has a plurality of grinding heads, and different types of grinding wheel pieces or small grinding wheel heads are installed on different grinding work heads, so as to avoid frequent disassembly and replacement of the grinding wheel pieces or small grinding wheel heads, and reduce the cost of Labor intensity, greatly improving work efficiency.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, wherein:

Fig. 1 is the structural representation of the preferred embodiment of the present utility model;

FIG. 2 is a schematic structural diagram of a grinding head according to a preferred embodiment of the present invention.

Among them, power controller-1, grinding body-2, grinding head-3, main control switch-11, speed control knob-12, drive motor-31, transmission rod-32, clamping part-33, sub-control switch -34, groove -21.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 1 and 2, a hand-held electric sander of the present invention includes a power supply controller 1 and a grinding body 2 connected to the power supply controller 1, and the power supply controller 1 supplies power to the grinding body 2, The grinding body 2 is provided with a plurality of grinding heads 3 . Different grinding work heads 3 are equipped with different types of grinding wheel discs or small grinding wheel heads, which avoids frequent disassembly and replacement of grinding wheel discs or small grinding wheel heads, reduces labor intensity and greatly improves work efficiency.

Specifically, the power supply controller 1 includes a battery, a master control switch 11 and a speed control knob 12 that are sequentially connected to the battery. By setting the battery, it can be charged and used, and is easy to carry; the master control switch 11 can control all grinding heads The power supply of 3 is on and off; the speed control knob 12 is connected to the potentiometer, and the resistance of the potentiometer is controlled by rotating the speed control knob 12 to control the rotation speed of the grinding head 3.

Further, the included angle between the output end of the grinding head 3 and the grinding body 2 is 120°, which is beneficial for grinding some narrow spaces or areas with limited angles, which is more convenient to use and has a more perfect grinding effect. The grinding head 3 includes a casing and a drive motor 31, a transmission rod 32 and a clamping portion 33 sequentially arranged in the casing from top to bottom. The output shaft of the drive motor 31 is connected to the transmission rod 32, and the transmission rod 32 is connected to the clamping part 33, the middle of the clamping part 33 is provided with a circular hole, the casing is also provided with a sub-control switch 34, one end of the sub-control switch 34 is connected to the drive motor 31, and the other end is connected to the power supply The controller 1 is connected, and the sub-control switch 34 can control the start and stop of the driving motor 31 of the grinding head 3. When the grinding head 3 is working, the driving motor 31 rotates to drive the transmission rod 32 to rotate, and the transmission rod 32 drives the clamping part 33. Rotate, insert the grinding wheel piece or the small grinding wheel head into the circular hole in the middle of each clamping part 33, so that the grinding wheel piece or the small grinding wheel head rotates.

Further, the surface of the grinding body 2 is provided with a number of grooves 21, the grooves 21 are longitudinal strip grooves or arc grooves, and the grooves are evenly arranged on the surface of the grinding body 2, which can improve the grinding body. 2 friction for easy grip.

The specific use method of the hand-held electric sander of the present utility model includes:

The first step is to select different types of grinding wheel pieces or small grinding wheel heads and insert them into the clamping parts 33 of each grinding head 3 to fix;

In the second step, plug in the power supply or directly use the battery to supply power, turn on the main control switch 11, turn on the sub-control switch 34 corresponding to the grinding head 3, fine-tune the speed control knob 12, control the rotation speed, and output a DC regulated power supply, Through the force transmission of the transmission rod 32 and the clamping part 33, the grinding wheel piece or the small grinding wheel head is driven to perform a high-speed rotating mechanical motion, and then the grinding and polishing can be started;

The third step is to adjust the speed control knob 12 at any time according to the needs of the rotation speed during the grinding and polishing process;

The fourth step, if you need to replace the grinding work head 3, first turn off the sub-control switch 34 corresponding to the working head, then turn on the sub-control switch 34 of the required grinding work head 3, align the work object, and continue grinding. polishing operation.

The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the above-mentioned embodiments, as long as it achieves the technical effect of the present utility model by any same or similar means, it shall belong to the protection of the present utility model. scope.

Claims (8)

1. A hand-held electric sander, characterized in that: comprising a power supply controller (1) and a grinding body (2) connected with the power supply controller (1), and the power supply controller (1) is a grinding body (2) Power supply, and the grinding body (2) is provided with a plurality of grinding heads (3). 2 . The hand-held electric grinder according to claim 1 , wherein different types of grinding wheel pieces or small grinding wheel heads are installed on the grinding work head ( 3 ). 3 . 3. A hand-held electric sander according to claim 1, characterized in that: the grinding head (3) comprises a casing and a drive motor (31) and a transmission rod sequentially arranged in the casing from top to bottom (32) and the clamping part (33), the output shaft of the driving motor (31) is connected with the transmission rod (32), the transmission rod (32) is connected with the clamping part (33), the clamping part (33) is provided with a circular hole in the middle. 4. A hand-held electric sander according to claim 3, characterized in that: a sub-control switch (34) is further provided on the casing, and one end of the sub-control switch (34) is connected to the drive motor (31) , and the other end is connected to the power controller (1). 5. A hand-held electric sander according to claim 1, characterized in that: the power controller (1) comprises a battery, a master control switch (11) and a speed control knob (11) connected in turn with the battery. 12). 6 . The hand-held electric sander according to claim 1 , wherein the included angle between the output end of the grinding head ( 3 ) and the grinding body ( 2 ) is 90° to 150°. 7 . 7 . The hand-held electric sander according to claim 6 , wherein the angle between the output end of the grinding head ( 3 ) and the grinding body ( 2 ) is 120°. 8 . 8 . The hand-held electric sander according to claim 1 , wherein a plurality of grooves ( 21 ) are provided on the surface of the sanding body ( 2 ). 9 .

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