CN207942284U - A kind of dust-collecting type is double acting to make flat-grinding machine - Google Patents

Abstract

Make flat-grinding machine the utility model discloses a kind of dust-collecting type is double acting, including flat-grinding machine main body, an outer cover is provided in flat-grinding machine main body, the lower section of outer cover is rotatably provided with the turntable for installing abrading article, turntable is driven by a driving device and can be rotated relative to outer cover, a cavity is surrounded between turntable and outer cover, and the air suction opening up and down being connected with cavity is provided on turntable, the sweep-up pipe being connected with cavity is additionally provided in flat-grinding machine main body.The dust absorption generated during polishing operation can be avoided dust from flying and pollute environment, be conducive to the health of operating personnel by external air extractor by sweep-up pipe.

Description

A dust-suction double-action flat grinder

technical field

The utility model relates to the technical field of grinding equipment, in particular to a dust-absorbing double-action flat grinder.

Background technique

A flat grinder is a device used to smooth the surface of an object. In industrial production activities, it is inevitable to use a flat grinder for products that need to ensure surface finish or flatness. The use of the flat grinder will inevitably cause dust to fly everywhere, which will not only endanger the health of the operator, but also pollute the environment.

Utility model content

In view of this, the purpose of the utility model is to provide a dust suction type double-action flat grinder capable of removing dust generated during grinding operations.

The technical scheme that the utility model adopts for solving its technical problem is:

A vacuum-type double-action flat grinder, comprising a main body of the flat grinder, an outer cover is arranged on the main body of the flat grinder, and a turntable for installing grinding parts is rotatably arranged below the outer cover, and the turntable is composed of Driven by a driving device, it can rotate relative to the outer cover. A cavity is formed between the turntable and the outer cover. The turntable is provided with a dust suction hole that communicates with the cavity up and down. The flat The main body of the mill is also provided with a dust suction pipe communicating with the cavity.

Preferably, the turntable is roughly disc-shaped, an eccentric shaft is connected to the output end of the drive device, and the drive device drives the turntable to rotate eccentrically through the eccentric shaft.

Preferably, the diameter of the turntable is 4 inches to 7 inches, and the eccentricity of the turntable is 1.25 mm to 8 mm.

Preferably, a sealing ring for closing the gap between the turntable and the outer cover is provided at the lower edge of the outer cover.

Preferably, the driving device is an air motor, and the switch of the air motor is a normally open switch.

Preferably, a rod-shaped handle is provided on the main body of the flat grinder, and a handle is also provided on the main body of the flat grinder, and the handle, the handle, and the rotating shaft of the turntable are perpendicular to each other.

Preferably, the driving device is an air motor, and the handle is a segment of the air motor.

The beneficial effects of the utility model are: before using the utility model to grind workpieces, firstly connect the dust suction pipe with the external air extraction device, and then start the air extraction device. The generated dust will enter the cavity through the suction hole upwards under the suction of the suction device, and finally be sucked away by the suction pipe, so as to avoid the dust flying and pollute the environment, which is beneficial to the health of the operators.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is an exploded view of the utility model;

Fig. 2 is one of structural representations of the utility model;

Fig. 3 is the second structural representation of the utility model;

Fig. 4 is a sectional view of the eccentric shaft in the utility model;

Fig. 5 is a schematic diagram of the rotation route of the points on the turntable.

Detailed ways

Referring to Fig. 1 to Fig. 5, a dust-absorbing double-action flat grinder includes a flat grinder main body 1, a cover 2 is arranged on the flat grinder main body 1, and a rotatable bottom of the cover 2 is provided for installing grinding parts. The turntable 3 is driven by a driving device and can rotate relative to the cover 2. A cavity is formed between the turntable 3 and the cover 2. The turntable 3 is provided with a dust suction hole 31 that communicates with the cavity up and down. , The main body 1 of the flat grinder is also provided with a suction pipe 4 communicating with the cavity. The outer cover is an upwardly protruding shell. Before using the utility model to grind workpieces, connect the dust suction pipe 4 with the external air extraction device, and then start the air extraction device. During the grinding operation, the grinding parts are installed on the bottom of the turntable 3. The dust produced by grinding the workpiece will enter into the cavity upwards through the suction hole 31 under the suction of the air extraction device, and will be sucked away by the suction pipe 4 at last, so as to avoid the dust flying and pollute the environment, which is beneficial to the health of the operator. The air extractor mentioned above can be a centrally integrated large air extractor, or a small air extractor such as a vacuum cleaner.

In this embodiment, the turntable 3 is roughly disc-shaped, and an eccentric shaft 8 is connected to the output end of the drive device, and the drive device drives the turntable 3 to rotate eccentrically through the eccentric shaft 8 . 5, the eccentric shaft 8 is provided with a mounting shaft 81 and a mounting hole 82, the axes of the mounting shaft 81 and the mounting hole 82 are parallel to each other and not collinear, and the turntable 3 is coaxially installed in the mounting hole 82. The end is coaxial with the installation shaft 81. In industrial applications, the distance between the axis of the installation shaft 81 and the axis of the installation hole 82 should be between 1.5 mm to 8 mm (ie the eccentric size of the turntable 3 ), and the diameter of the commonly used turntable 3 is 4 inches to 7 inches. Generally speaking, the eccentric size of the turntable 3 is positively correlated with the diameter of the turntable 3. For example, for a turntable 3 with a diameter of 4 inches, the eccentric size can be 1.5 mm to 2.5 mm, and for a turntable 3 with a diameter of 7 inches, the eccentric size can be It is 4.5mm～8mm, and the specific eccentric size should be adjusted according to the shape of the eccentric shaft 8 and the counterweight.

The grinding piece can be consumables such as sandpaper, grinding wheel, etc. In this embodiment, the grinding piece is sandpaper that can be fixedly installed on the bottom surface of the turntable 3 . The back side of the sandpaper is generally a wool fabric, and an attachment structure similar to Velcro can be set on the bottom surface of the turntable 3, and the sandpaper is fixed on the bottom surface of the turntable 3 by these attachment structures. During the grinding operation, the turntable 3 rotates eccentrically relative to the main body 1 of the flat grinder, and the movement route of the points on the turntable 3 is similar to the curve described in Figure 5. All the points on the lower surface of the sandpaper can be fully used to polish the workpiece, and the workpiece can be ground. The surface of the workpiece is polished more smoothly, which reduces the speed of friction and heat generation of the workpiece.

In order to further improve the dust removal effect, a sealing ring 5 for closing the gap between the turntable 3 and the outer cover 2 is provided at the lower edge of the outer cover 2 . The sealing ring 5 can close the gap between the rotating disk 3 and the outer cover 2 to ensure the suction force, and the dust in the cavity can be diffused outwards. In addition, the rotating disk 3 can be compressed by the sealing ring 5. When the utility model is shut down, the sealing ring 5 The frictional force between the rotating disk 3 and the rotating disk 3 can stop the rotation quickly, and the safety is good.

In order to be convenient to hold, the main body 1 of the flat grinder is provided with a rod-shaped hand-held part 62 , and the main body 1 of the flat grinder is also provided with a handle 7 . When using the utility model, the operator can hold the handle 62 with one hand and the handle 7 with the other, and the operation with both hands is conducive to grasping the balance. In addition, the rotating shafts of the handle 62 , the handle 7 and the turntable 3 are perpendicular to each other, so it is easier to grasp the balance and save labor when grinding with sandpaper installed on the lower end surface of the turntable 3 .

In this embodiment, the driving device is an air motor 6 , and the handle 62 is a section of the air motor 6 . The switch of the air motor 6 is a normally open switch 61 . When using the utility model to polish workpieces, the normally open switch 61 needs to be pressed all the time. Once the operator lets go, the air motor 6 will stop rotating immediately, which is safe.

The above are only the preferred implementation modes of the utility model, as long as the technical solutions to achieve the purpose of the utility model by basically the same means all fall within the protection scope of the utility model.

Claims (7)

1. A dust-absorbing double-action flat grinder, comprising a flat grinder main body (1), is characterized in that an outer cover (2) is arranged on the flat grinder main body (1), and the outer cover (2) The lower part is rotatably provided with a turntable (3) for installing grinding parts. The turntable (3) is driven by a driving device and can rotate relative to the outer cover (2). The turntable (3) and the outer cover (2) ) to form a cavity, the turntable (3) is provided with a dust suction hole (31) that communicates with the cavity up and down, and the main body (1) of the flat grinder (1) is also provided with a The dust suction pipe (4) connected with the cavity. 2. A dust-absorbing double-action flat grinder according to claim 1, characterized in that the turntable (3) is roughly disc-shaped, and an eccentric shaft (8) is connected to the output end of the drive device , the drive device drives the turntable (3) to rotate eccentrically through the eccentric shaft (8). 3. A dust-absorbing double-action flat grinder according to claim 2, characterized in that the diameter of the turntable (3) is 4 inches to 7 inches, and the eccentric size of the turntable (3) is 1.25 inches. mm ~ 8mm. 4. A dust-absorbing double-action flat grinder according to claim 1, characterized in that, the lower edge of the outer cover (2) is provided with a seal for sealing between the turntable (3) and the outer cover (2). gap seal (5). 5. A dust-absorbing double-action flat grinder according to claim 1, wherein the driving device is an air motor (6), and the switch of the air motor (6) is a normally open switch ( 61). 6. A dust-absorbing double-action flat grinder according to claim 1, characterized in that, the main body (1) of the flat grinder is provided with a rod-shaped handle (62), and the flat grinder The main body (1) is also provided with a handle (7), and the rotating shafts of the handle (62), the handle (7) and the turntable (3) are vertical in pairs. 7. A dust-absorbing double-action flat grinder according to claim 6, characterized in that, the driving device is an air motor (6), and the handle (62) is the air motor (6) ) on a paragraph.