CN209831276U - a polishing tool - Google Patents

Abstract

A polishing tool, including a motor, a polishing disc is installed on the output shaft of the motor, and a final shaft is placed on the polishing disc. The final shaft is a solid body, and the final shaft is closely attached to the polishing disc by its own gravity. There is a certain gap between the sleeve and the sleeve. The sleeve is fixedly connected with the magnetic base through the clamping part. The magnetic base is adsorbed and fixed. The starting motor drives the polishing disc to rotate at high speed. The sleeve is placed flat on the polishing disc and the sample is bonded. At the bottom of the finale, and under the gravity of the finale, it contacts the sandpaper on the polishing disc horizontally, so as to achieve the purpose of polishing, which can reduce the labor intensity of the experimenter and ensure the polishing effect at the same time. It has good polishing effect and strong versatility. features.

Description

a polishing tool

technical field

The utility model relates to a polishing tool.

Background technique

In the process of experimental research, small batches of small workpieces with smooth surfaces are usually used. Generally, polishing tools are used to remove the concave and convex parts of the surface of the workpiece to obtain a smooth surface. Common polishing tools include sandpaper, files, etc. In this process, if the polishing operation is performed with a hand-held polishing tool, the efficiency is low and the polishing effect is poor. If a metallographic polishing machine is used for polishing, after the motor drives the polishing disc to start moving, it is necessary to apply pressure to the sample by hand to polish on the rotating polishing disc. This polishing method will increase human labor, and the hands may not be able to hold the sample flat, which will have a serious impact on polishing.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to propose a polishing tool, which can reduce the labor intensity of the experimenters, and at the same time ensure the polishing effect, and has the characteristics of good polishing effect and strong versatility.

In order to achieve the above object, the technical solution adopted by the utility model is:

A polishing tool, comprising a motor 2, a polishing disc 3 is installed on the output shaft of the motor 2, a final shaft 7 is placed on the polishing disc 3, the final shaft 7 is a solid body, and the final shaft 7 is closely attached to the polishing disc 3 by its own gravity , the finale shaft 7 is covered with a sleeve 6 , there is a certain gap between the finale shaft 7 and the sleeve 6 , the sleeve 6 is fixedly connected with the magnetic base 12 through a clamping part, and is fixed by the magnetic base 12 through adsorption.

The outer diameter of the final shaft 7 is 2-8mm smaller than the inner diameter of the sleeve 6 .

The top of the finale shaft 7 is screwed to the handle 1 .

The clamping part includes a connecting fork 8, the connecting fork 8 is connected to the sleeve 6 through an opening, and a switch piece 9 is installed on the opening to block it, and the threaded end of the first optical axis 11 is fixed on the connecting fork 8 through a nut 10 , the other end of the first optical axis 11 is fixedly connected to the rotary coupling 5 , the second optical axis 14 is fixed on the rotary coupling 5 , and the second optical axis 14 is fixed on the magnetic base 12 .

The rotary coupling 5 includes two couplings of the same structure, the two are connected by a short shaft 4, the short shaft 4 adopts a semi-closed connection mode, and the rotary coupling 5 is carried out by a semi-closed structure. fixed.

The utility model adopts a manual semi-automatic polishing tool, and uses external force to fix the sleeve. When polishing, the sample is fixed on the bottom of the finale, and pressure is applied by the gravity of the finale, which can not only free hands, prevent fatigue, and prevent Hands can cause damage or pollution, and can maintain the level of the sample, which can ensure the polishing effect; when the polishing disc rotates rapidly, the sample revolves, and when the finale rotates in the sleeve, the sample rotates on its own, thus passing the test The rotation and revolution of the sample can fully polish the sample to ensure the quality of polishing. If you simply use your hands to apply pressure, not only will you be tired in a short time, causing dirt on your hands that is difficult to clean, but it is also difficult to maintain the level of the sample with your hands. However, the practical polishing tool can not only effectively solve the above problems, but also can polish the sample more effectively through the polishing mode of rotation and revolution.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural schematic diagram of a rotary coupling.

Fig. 3 is a schematic diagram of the connection structure between the final shaft and the sleeve.

Fig. 4 is a schematic diagram of the connection structure between the sleeve and the clamping part.

Fig. 5 is a schematic diagram of the connection between the sleeve and the clamping part.

Fig. 6 is a structural schematic diagram of a clamping part.

Fig. 7 is a schematic structural diagram of the magnetic base.

Detailed ways

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

Referring to Fig. 1, a polishing tool includes a motor 2, a polishing disc 3 is installed on the output shaft of the motor 2, and a pressing shaft 7 is placed on the polishing disc 3, the pressing shaft 7 is a solid body, and the pressing shaft 7 is closely attached to the surface by its own gravity. On the polishing disc 3 , see FIG. 3 , the top of the finale shaft 7 is screwed to the handle 1 . The finale 7 is covered with a sleeve 6, and there is a certain gap between the finale 7 and the sleeve 6, and the outer diameter of the finale 7 is 2mm smaller than the inner diameter of the sleeve 6. When the sample is polished in contact with the sandpaper on the high-speed rotating polishing disc 3, a large amount of heat will be generated. At this time, water can be poured from the top of the final shaft 7, and the water will flow out from the opening below the sleeve 6, thereby achieving The purpose of cooling and cleaning metal dust.

The sleeve 6 is fixedly connected with the magnetic base 12 through the clamping part, and is fixed by the magnetic base 12 through adsorption. Referring to Fig. 4, Fig. 5 and Fig. 6, the clamping part includes a connection fork 8, the connection fork 8 is connected to the sleeve 6 through an opening shape, and a switch piece 9 is installed on the opening shape to block, so as to prevent the connection fork from The purpose of sleeve 6 movement. At the same time, the design of the switch piece 9 is light and flexible, reducing the tedious steps during disassembly and installation. The threaded end of the first optical shaft 11 is fixed on the connecting fork 8 through a nut 10 , and the other end of the first optical shaft 11 is fixedly connected to the rotary coupling 5 .

Referring to FIG. 2 , the rotary coupling 5 includes two couplings of the same structure, the two are connected by a short shaft 4 , and the short shaft 4 adopts a semi-closed connection method, which can realize 360° rotation. The rotary coupling 5 is also fixed by a semi-closed structure, which can move freely up and down.

Referring to Fig. 7, the second optical axis 14 is fixed on the rotary coupling 5, and the second optical axis 14 is fixed on the magnetic base 12. The magnetic base 12 is an existing device, which can be adsorbed and fixed, and the magnetic base 12 passes through it. The knob 13 on the top is used to control the strength of adsorption on the base, which can ensure the stability of the entire polishing tool.

The working principle of the utility model is:

After the polishing tool is installed, the motor 2 can be started to drive the polishing disc 3 to rotate at a high speed. At this time, the sleeve 6 is placed flat on the polishing disc 3, and the sample is bonded to the bottom of the final shaft 7 by 302 glue (the latter can be passed acetone to remove), and contact with the sandpaper on the polishing disc 3 horizontally under the gravity of the final shaft 7, so as to achieve the purpose of polishing.

Claims (5)

1. a polishing tool, it is characterized in that, comprises motor (2), and polishing disk (3) is installed on the output shaft of motor (2), places finale (7) on the polishing disk (3), described finale (7) ) is a solid body, the finale shaft (7) is tightly fitted on the polishing disc (3) by its own gravity, the finale shaft (7) is covered with a sleeve (6), and a certain space is left between the finale shaft (7) and the sleeve (6). gap, the sleeve (6) is fixedly connected with the magnetic seat (12) through the clamping part, and is fixed by the magnetic seat (12). 2. A polishing tool according to claim 1, characterized in that, the outer diameter of the final shaft (7) is 2-8mm smaller than the inner diameter of the sleeve (6). 3. A kind of polishing tool according to claim 1, characterized in that, the clamping part comprises a connecting fork (8), and the connecting fork (8) is connected to the sleeve (6) through an opening shape, and the opening shape is Install the switch piece (9) to block, the threaded end of the first optical axis (11) is fixed on the connecting fork (8) through the nut (10), and the other end of the first optical axis (11) is fixedly connected to the rotary coupling ( 5), the second optical axis (14) is fixed on the rotary coupling (5), and the second optical axis (14) is fixed on the magnetic seat (12). 4. A kind of polishing tool according to claim 3, it is characterized in that, described rotary coupling (5) comprises the coupling of two identical structures, both are connected by short shaft (4), and described short The shaft (4) adopts a semi-closed connection mode, and the rotary coupling (5) is fixed by a semi-closed structure. 5. A polishing tool according to claim 1, characterized in that, the top of the final shaft (7) is connected to the handle (1) through threads.