CN202742182U - Small-sized sanding machine - Google Patents

Abstract

The utility model relates to an electronic tool, aiming to solve the problems that the efficiency is low and the surfaces of parts are easy to damage when grinding the surfaces of the parts, and provides a small-sized sanding machine which is simple and easy in use. The small-sized sanding machine comprises a motor and a motor output shaft which are connected with each other; the external end of the motor output shaft is sleeved with a coaxial cylindrical rotary drum; a plurality of sandpaper blades are arranged along the side of the rotary drum; the sandpaper blades are arranged radially by taking the rotary drum as a center, and all of the sandpaper blades are parallel to the connecting line of the side of the rotary drum and a bus of the rotary drum; the front faces of the sandpaper blades face to the rotational direction of the motor output shaft. The small-sized sanding machine provided by the utility model can be used for replacing handwork to grind the surfaces of the parts, thus, the operational efficiency is improved, and the surfaces of the parts are hard to damage.

Description

small sandpaper grinder

technical field

The utility model relates to an electric tool, in particular to a small sandpaper grinding machine.

Background technique

In the testing and production process of automobiles, due to the requirements of certain processes, it is often necessary to remove the paint on the surface of parts. For example, when attaching strain gauges to the surface of the test vehicle body, the strain gauges should be directly attached to the metal of the body. , at this time, the paint at the corresponding position must be removed to obtain the test results. At present, in actual operation, manual grinding is often used, using sandpaper or a file, which is not only time-consuming and laborious, but also causes damage to the surface of parts if the operation is improper. In addition, some people consider using a grinder to grind the surface of the parts to remove the paint. For example, the utility model patent entitled "A Tool for Car Grounding Decontamination" published by the State Intellectual Property Office of China (Notice No.: CN201895000U, Announcement Date : 2011-07-13), the main content is: a car ground cleaning tool, which includes a pneumatic gun and a rotating gun head seat, and is also provided with a cleaning gun head. The cleaning gun head is adapted to the gun On the head seat, the cleaning gun head is a grinding wheel, and the grinding wheel is one of a resin grinding wheel or a ceramic grinding wheel. Since the surface of many parts is an irregular curved surface, it is difficult to grasp the depth of grinding with a grinding wheel, and it is also difficult to operate the concave part of the part, and improper operation will still damage the surface of the part.

Utility model content

The purpose of this utility model is to solve the problems of low efficiency and easy damage to the surface of the parts encountered in the grinding operation of the parts surface, and to provide a small and easy-to-use sandpaper grinding machine.

In order to achieve the above object, the utility model adopts the following scheme: a small sandpaper grinding machine, including a motor and a motor output shaft connected to each other, the outer end of the motor output shaft is sleeved with a coaxial cylindrical drum, A number of sandpaper blades are arranged along the side of the drum, the sandpaper blades are radially arranged with the drum as the center and all the sandpaper blades are parallel to the connecting line on the side of the drum and the generatrix of the drum, and the front of the sandpaper blades faces The direction of rotation of the output shaft of the motor. Align the front of the sandpaper blade with the part that needs to be polished, turn on the power of the motor, and the position can be polished under the drive of the drum, which greatly improves the efficiency compared with manual grinding. The sandpaper blade is perpendicular to the rotation direction of the drum , it is more convenient to operate, and because the sandpaper can be bent, it can adapt to the surface of parts with various curved surfaces, and it is not easy to cause damage to the surface of parts.

Preferably, the outer end of the output shaft of the motor and the drum are movable sockets. In this way, the drum can be directly replaced as required, which improves the convenience of use.

Preferably, the motor is installed in a casing, and the outer end of the output shaft of the motor protrudes outside the casing. The casing is not only more beautiful, but also protects the motor, and is also easy to hold during operation.

Preferably, a rechargeable battery is connected to the motor. In some places where it is inconvenient to use an AC power supply, a rechargeable battery can be used as power, which improves the scope of application of the utility model.

The beneficial effect of the utility model is that it can replace the manual grinding treatment on the surface of the parts, which improves the operation efficiency and is not easy to cause damage to the surface of the parts.

Description of drawings

Figure 1 is a schematic structural view of the utility model.

in:

1- motor, 2- motor output shaft, 3- drum, 4- sandpaper blade, 5- casing, 6-

rechargeable battery.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Figure 1, a small-sized sandpaper grinding machine includes a motor 1 and a motor output shaft 2 connected to each other, the motor 1 is installed in a casing 5 and is connected with a rechargeable battery 6, and the motor output shaft 2 extends out of the casing 5, the outer end of the motor output shaft 2 is movably socketed with a coaxial cylindrical drum 3, along the side of the drum 3 with the drum 3 as the center, 12 sandpaper blades 4 are radially arranged, and the sides of the sandpaper blades 4 The front side faces the direction of rotation of the output shaft 2 of the motor, and the connection line between the sandpaper blade 4 and the side of the drum 3 is parallel to the generatrix of the drum 3 .

Align the front of the sandpaper blade 4 with the part that needs to be polished on the surface of the component, turn on the power of the motor 1, and the output shaft 2 of the motor drives the rotating drum 3 to rotate, and then the rotating sandpaper blade 4 can be used to perform grinding work; generally, this utility model The new type uses alternating current as the power supply, and can also be powered by a rechargeable battery 6 alone according to the needs of the site; when the front of the sandpaper blade 4 is worn, the drum 3 can be removed and replaced with a drum 3 with a new sandpaper blade 4 installed. operate.

Claims (4)

1. small-sized sanding machine, comprise interconnective motor (1) and motor output shaft (2), it is characterized in that, the outer end of described motor output shaft (2) is socketed with a coaxial columniform rotary drum (3), side along described rotary drum (3) is provided with some sand paper blades (4), described sand paper blade (4) is radial arrangement centered by rotary drum (3) and all sand paper blades (4) are parallel with the bus of rotary drum (3) with the connecting line of rotary drum (3) side, described sand paper blade (4) just facing to the rotation direction of described motor output shaft (2).

2. small-sized sanding machine according to claim 1 is characterized in that, is pivot bush unit between the outer end of described motor output shaft (2) and the rotary drum (3).

3. small-sized sanding machine according to claim 1 is characterized in that, described motor (1) is installed in the casing (5), and the outer end of described motor output shaft (2) stretches out in outside the casing (5).

4. according to claim 1 and 2 or 3 described small-sized sanding machines, it is characterized in that, be connected with rechargeable battery (6) on the described motor (1).