CN209831276U - Polishing tool - Google Patents

Abstract

The utility model provides a polishing tool, includes the motor, installs polishing dish on the output shaft of motor, places the last pressure axle of polishing dish, the pressure axle is the solid, and the pressure axle is closely laminated on polishing dish through self gravity, and the pressure axle overcoat has the sleeve, leaves certain clearance between pressure axle and the sleeve, and the sleeve passes through hold assembly and magnetism seat fixed connection, adsorbs fixedly through the magnetism seat, and the starter motor drives polishing dish high-speed rotation, and the sleeve is kept flat on polishing dish, and the sample bonds in the pressure axle bottom to under the action of gravity of pressure axle the horizontally with polish on the dish contact with abrasive paper, thereby reach the purpose of polishing, can reduce experimenter's intensity of labour, guarantee polishing effect simultaneously, have polishing effect good, the strong characteristics of commonality.

Description

Polishing tool

Technical Field

The utility model relates to a polishing tool.

Background

During experimental studies, small batches of small workpieces with smooth surfaces are usually used, and the smooth surfaces are generally obtained by removing the irregularities on the surfaces of the workpieces through a polishing tool. A typical polisher has sandpaper, rasp, or the like. If the polishing tool is held by hand to perform the polishing operation, the efficiency is low and the polishing effect is poor. If the metallographic polishing machine is used for polishing, after the motor drives the polishing disk to start moving, the sample needs to be polished on the rotating polishing disk by applying pressure to the sample by hand. This method of polishing increases the labor and does not necessarily hold the sample flat with both hands, which can have a serious impact on polishing.

Disclosure of Invention

In order to overcome the not enough of above-mentioned prior art, the utility model aims to provide a burnishing tool can reduce experimenter's intensity of labour, guarantees polishing effect simultaneously, has the characteristics that polishing effect is good, the commonality is strong.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides a polishing tool, includes motor 2, installs polishing dish 3 on motor 2's the output shaft, places last pressure axle 7 of polishing dish 3, pressure axle 7 is the solid, and pressure axle 7 closely laminates on polishing dish 3 through self gravity, and pressure axle 7 overcoat has sleeve 6, leaves certain clearance between pressure axle 7 and the sleeve 6, and sleeve 6 passes through clamping part and 12 fixed connections of magnetism seat, adsorbs fixedly through magnetism seat 12.

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

The top of the pressing shaft 7 is connected with the handle 1 through threads.

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

The rotary coupling 5 comprises two couplings with the same structure, the two couplings are connected through a short shaft 4, the short shaft 4 adopts a semi-closed connection mode, and the rotary coupling 5 is fixed through a semi-closed structure.

The utility model adopts a semi-automatic polishing tool replacing manual work, fixes the sleeve by external force, fixes the sample at the bottom of the pressure shaft during polishing, and applies pressure by the gravity of the pressure shaft, thereby not only liberating both hands and preventing fatigue and damage or pollution caused by both hands, but also keeping the level of the sample and ensuring the polishing effect; when the polishing disc rotates at a flying speed, the sample revolves, and when the pressure shaft rotates in the sleeve, the sample rotates, so that the sample can be fully polished through the rotation and revolution of the sample, and the polishing quality is ensured. If pressure is applied by hand alone, not only will fatigue in a short time, causing mess on the hand that is difficult to clean, but the hand will also be difficult to maintain the level of the sample. And this utility model burnishing tool not only can effectively solve above-mentioned problem, and the polishing mode through rotation and revolution moreover can carry out more effective polishing to the sample.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the rotary coupling.

Fig. 3 is a schematic view of a connection structure of the pressing shaft and the sleeve.

Fig. 4 is a schematic view of a connecting structure of the sleeve and the clamping member.

Fig. 5 is a schematic view of the connection of the sleeve to the clamping member.

Fig. 6 is a schematic structural view of the holding member.

Fig. 7 is a schematic structural view of a magnetic base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a polishing tool comprises a motor 2, a polishing disc 3 is mounted on an output shaft of the motor 2, a pressing shaft 7 is arranged on the polishing disc 3, the pressing shaft 7 is a solid body, the pressing shaft 7 is tightly attached to the polishing disc 3 through self gravity, referring to fig. 3, and the top of the pressing shaft 7 is connected with a handle 1 through threads. The sleeve 6 is sleeved outside the pressing shaft 7, a certain gap is reserved between the pressing shaft 7 and the sleeve 6, and the outer diameter of the pressing shaft 7 is 2mm smaller than the inner diameter of the sleeve 6. When a sample is in contact with abrasive paper on the polishing disc 3 rotating at a high speed for polishing, a large amount of heat is generated, water can be poured from the upper part of the pressing shaft 7 at the moment, and the water flows out from the opening part below the sleeve 6, so that the purposes of cooling and cleaning metal dust are achieved.

The sleeve 6 is fixedly connected with the magnetic base 12 through a clamping component and is adsorbed and fixed through the magnetic base 12. Referring to fig. 4, 5 and 6, the clamping member includes a yoke 8, the yoke 8 is connected to the sleeve 6 through an opening, and a switch plate 9 is installed on the opening for blocking, so as to achieve the purpose of preventing the sleeve 6 from moving by controlling the yoke. Meanwhile, the switch sheet 9 is light and flexible in design, and complicated steps in disassembly and assembly are reduced. The threaded end of the first optical axis 11 is fixed on the connecting fork 8 through a nut 10, and the other end of the first optical axis 11 is fixedly connected with the rotary coupling 5.

Referring to fig. 2, the rotary coupling 5 includes two couplings with the same structure, and the two couplings are connected through a short shaft 4, and the short shaft 4 adopts a semi-closed connection mode, so that 360-degree rotation can be realized. The rotary coupling 5 is fixed by a semi-closed structure, and can move up and down freely.

Referring to fig. 7, the second optical axis 14 is fixed on the rotary coupling 5, the second optical axis 14 is fixed on the magnetic base 12, the magnetic base 12 is an existing device and can be fixed in an adsorption manner, and the magnetic base 12 controls the force absorbed on the base through the knob 13 on the magnetic base, so that the stability of the whole polishing tool can be ensured.

The utility model discloses a theory of operation 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, the sleeve 6 is flatly placed on the polishing disc 3, the sample is adhered to the bottom of the pressing shaft 7 through the 302 glue (the sample can be taken out through acetone in the later period), and the sample is horizontally contacted with the abrasive paper on the polishing disc 3 under the action of the gravity of the pressing shaft 7, so that the polishing purpose is achieved.

Claims (5)

1. The utility model provides a polishing tool, its characterized in that, includes motor (2), installs polishing dish (3) on the output shaft of motor (2), places pressure axle (7) on polishing dish (3), pressure axle (7) are the solid, and pressure axle (7) are closely laminated on polishing dish (3) through self gravity, and pressure axle (7) overcoat has sleeve (6), leaves certain clearance between pressure axle (7) and sleeve (6), and sleeve (6) pass through hold-down member and magnetism seat (12) fixed connection, adsorb fixedly through magnetism seat (12).

2. A polishing tool according to claim 1, characterized in that the outer diameter of the pressure shaft (7) is 2-8mm smaller than the inner diameter of the sleeve (6).

3. A polishing tool according to claim 1, characterized in that the holding means comprises a yoke (8), the yoke (8) is connected to the sleeve (6) via an open shape, the open shape is closed by a switch plate (9), the threaded end of the first optical axis (11) is fixed to the yoke (8) via a nut (10), the other end of the first optical axis (11) is fixedly connected to the rotary coupling (5), the rotary coupling (5) is fixedly connected to a second optical axis (14), and the second optical axis (14) is fixed to the magnetic base (12).

4. A polishing tool according to claim 3, characterized in that the rotary joint (5) comprises two joints of the same construction, which are connected by a stub shaft (4), the stub shaft (4) being connected in a semi-closed manner, the rotary joint (5) being fixed by the semi-closed construction.

5. A polishing tool according to claim 1, characterized in that the top of the pressing shaft (7) is screwed to the handle (1).