KR102276986B1 - Grinder holder that polishing pad can be attached or detached by one-action - Google Patents

Abstract

The present invention relates to a grinder holder capable of attaching and detaching a polishing pad with one touch, the grinder holder being fixed to the rotation shaft of the grinder and capable of being mounted or detached from a mounting hole of the polishing pad, wherein the grinder holder can be coupled to the rotation shaft of the grinder in the center A coupling hole is formed, and a guide path having a shape that is opened toward the outside is formed on both sides, a through hole is formed on an upper surface of the upper side of the guide path, and a pair of facing semicircular rotation around the coupling hole of the lower surface is formed. The body in which the guide jaw is formed; a locking means that slides along the guide path, has an upper locking jaw that protrudes upward through the through hole on one side, and has a lower pressing jaw that extends downwardly on the other side; a compression spring provided between the locking means and the coupling hole to elastically support the locking means; a safety piece made of a disk shape, the insertion hole into which the rotation guide jaw is inserted is formed in the center to be rotatable, fixed protrusions protruding to the lower pressing jaw are formed on both sides of the safety piece, and a rotation tag is formed to protrude from one side; and a cover plate covering the lower part of the main body to prevent the locking means from being released by engaging the lower pressing jaw on the fixing protrusion, and after rotating the safety piece by holding the rotation tag, the locking means It is characterized in that the upper locking jaw can be released from the mounting hole by pressing .

Description

Grinder holder that polishing pad can be attached or detached by one-action}

The present invention relates to a grinder holder, and more particularly, to a grinder holder capable of attaching and detaching a polishing pad with one touch having a structure in which a polishing pad or a cutter can be mounted or detached from the grinder with one operation by being mounted on the grinder. will be.

In general, a grinder generates rotational power by means of a motor or air pressure, and transmits the generated rotational force to a rotational shaft formed on one side of the grinder, and an abrasive tool such as an abrasive disk or a polishing pad or a circular cutter is coupled to the rotational shaft to clean the surface of the workpiece. Used for cutting or cutting.

The grinder can be divided into a fixed grinder that puts a large number of workpieces in a fixed position and grinds them in a fixed state, and a portable grinder that moves to various places and can carry and move to process small and small workpieces.

Recently, a convenient portable grinder is widely used, but the portable grinder wears out the abrasive tool if used for a certain period of time, so it should be replaced. And it is often replaced with abrasive tools of different sizes or types.

In relation to such a hand grinder, the technology shown in the Korean Utility Model Publication No. 0356304 is such that the head on which the abrasive plate is mounted is inserted into the rotation shaft of the grinder and fixed or separated by a fastening member such as a fixing nut, This is inconvenient to have to repeat the process of tightening or loosening the fixing nut using a separate tool such as a spanner. The continuity of work was difficult, and it was a factor that lowered work efficiency.

In addition, in consideration of the above points, in Registered Utility Model No. 0373648 or No. 0376952, a sleeve that moves in the axial direction is mounted on the circumference of the coupler, and the abrasive tool is removed and mounted in a one-touch method by making the locking ball retract A structure is disclosed for making it possible.

However, in the case of this conventional method, since the locking ball has a structure that protrudes from the groove formed at the end of the abrasive tool, vibration occurs in the high-speed rotating abrasive tool during grinding operation.

In addition, there is no problem in grinding on a generally flat surface during grinder operation, but vibrations are transmitted to the spring on a curved surface or at a corner with a curve, causing the abrasive tool to vibrate, resulting in a decrease in work efficiency.

In addition, since it is a structure that maintains adhesion with the coupler depending on the three protrusions formed on the circumference of the abrasive tool, power transmission is not performed properly when a certain amount of force is performed, as well as binding force due to friction or fine vibration. It has the drawback of causing great psychological anxiety in the worker.

In order to solve this problem, there is a Republic of Korea Patent Registration No. 10-2037521 (2019.10.22.) "a grinder holder capable of attaching and detaching a polishing pad with one touch" applied and registered by the present applicant.

Although the above patent solves most of the problems of the prior art, since the actual abrasive tool rotates at high speed, there is a risk that the mounted abrasive tool may come off in case of an emergency, but there is no safety device to prevent this in advance.

Republic of Korea Registered Utility Model 20-0356304(2004.7.6) "Abrasive Head for Grinder" Republic of Korea Registered Utility Model 20-0373648 (October, 2005) "Abrasive holder detachable structure of hand grinder" Republic of Korea Patent No. 10-1783563 (2017.9.25) "Abrasive disc with fixing part for one-touch holder" Republic of Korea Patent Registration 10-1900082 (2018.9.12) "Grinder with easy disk replacement" Republic of Korea Patent Registration 10-1892966 (Aug. 23, 2018) "Abrasive tool mounting unit"

Accordingly, the present invention is to solve the above-mentioned problems, and an object of the present invention is to be a safety means that can easily replace the abrasive disk with one-touch operation and completely prevent the abrasive pad rotating at high speed from being separated in advance. It is to provide a holder of a grinder capable of attaching and detaching the polishing pad with one-touch provided.

According to the present invention for achieving the above object, a grinder holder capable of attaching and detaching a polishing pad with one touch is a grinder holder that is fixed to a rotation shaft of a grinder and can be mounted or detached from a mounting hole of a polishing pad, A coupling hole capable of being coupled to the rotating shaft is formed, and a guide path having a shape that is opened toward the outside is formed on both sides, a through hole is formed in the upper upper surface of the guide path, and a pair is formed around the coupling hole of the lower surface. The body in which the opposite semicircular rotation guide jaw is formed; a locking means that slides along the guide path, has an upper locking jaw that protrudes upward through the through hole on one side, and has a lower pressing jaw that extends downwardly on the other side; a compression spring provided between the locking means and the coupling hole to elastically support the locking means; a safety piece made of a disk shape, the insertion hole into which the rotation guide jaw is inserted is formed in the center to be rotatable, fixed protrusions protruding to the lower pressing jaw are formed on both sides of the safety piece, and a rotation tag is formed to protrude from one side; and a cover plate covering the lower part of the main body to prevent the locking means from being released by engaging the lower pressing jaw on the fixing protrusion, and after rotating the safety piece by holding the rotation tag, the locking means By pressing , the upper locking jaw may be unlocked from the mounting hole.

Here, edge grooves are further formed on both sides of the insertion hole, and on the inside of the rotation guide jaw, it has a semicircular shape, one end is inserted between the rotation guide jaws, and the other end is extended and introduced into the edge groove, the safety piece A torsion spring for elastically supporting rotation may be further provided.

And the locking means, the body portion sliding along the guide passage in a state accommodated in the guide passage, is formed on one side of the body portion is exposed to the outside of the guide passage, the upper pressing jaw extending upward and extending downwards A pressing part consisting of a lower pressing jaw that becomes a locking part formed vertically on the other side of the body part, protruding upward through the through hole, an upper locking jaw is formed at the upper end to the outside, and a lower locking jaw is formed at the lower end. can be done

In this case, between the inner surface of the through-hole and the body portion, fixing grooves into which both ends of the compression spring can be inserted and fixed may be formed, respectively.

In addition, a mounting protrusion that can be inserted into the mounting hole of the polishing pad may be further formed on the upper surface of the main body.

The present invention configured as described above has the following effects.

First, it is possible to attach and detach the polishing pad with one touch. That is, when the polishing pad is mounted, it can be attached by one operation of pressing the polishing pad, and when the polishing pad is detached, it can be detached by one operation of pressing the pressing part, so it is very convenient to replace it.

Second, since the safety piece is mounted, there is no risk of detachment even if the mounted polishing pad rotates at high speed, so safety is greatly improved.

1 is a perspective view showing the appearance of a general polishing pad;
2 is a perspective view illustrating a holder of a grinder capable of attaching and detaching a polishing pad with one touch according to an embodiment of the present invention;
3 is an exploded perspective view of the present invention shown in FIG.
4 is a cross-sectional view AA of the present invention shown in FIG.
5 is a perspective view showing the internal structure of the main body of the present invention shown in FIG.
Figure 6 is a bottom plan view showing a state in which the safety piece of the present invention is mounted;
Figure 7 is an operating state diagram of the safety piece of the present invention

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

For reference, the description with reference to the drawings is for easier understanding of the present invention, and the scope of the present invention is not limited thereto. And in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

1 is a perspective view showing an external appearance of a general polishing pad, FIG. 2 is a perspective view showing a holder of a grinder capable of attaching and detaching a polishing pad with one touch according to an embodiment of the present invention, and FIG. 3 is the present invention shown in FIG. is an exploded perspective view, and FIG. 4 is a cross-sectional view taken along AA of the present invention shown in FIG.

The present invention relates to a grinder holder capable of attaching and detaching a polishing pad with one touch, which has a structure in which the polishing pad can be mounted or detached by one operation while being mounted on the rotating shaft of the grinder.

For reference, in the present invention, the abrasive pad refers to an abrasive tool mounted on a grinder holder for grinding, cutting or cutting a workpiece, and is a term encompassing abrasive disks, cutting pads, cutting blades, circular saws, etc. .

The present invention may largely include a main body 100, a locking means 200, a compression spring 300, a safety piece 400 and a cover plate 600, and a torsion spring ( 500) may be further included.

First, the main body will be described with reference to FIG. 5 . 5 is a perspective view showing the internal structure of the main body of the present invention shown in FIG.

The body 100 forms a circular plate shape having a constant thickness as a whole.

And in the center of the main body 100 is formed a coupling hole 110 that can be coupled to the rotary shaft (not shown) of the grinder. The coupling hole 110 may be fastened in such a way that a female thread is formed on the inner circumferential surface and is screwed to the rotation shaft of the grinder.

In addition, a guide path 120 is formed in an outward direction from the coupling hole 110 of the main body 100 .

The guide path 120 has a predetermined width and is open outwardly. The guide path 120 may be arranged to face a pair from both sides around the coupling hole 110 .

Meanwhile, a through hole 130 is formed in the upper surface of the main body 100 .

The through-hole 130 is formed at an upper side of each guide path 120 to communicate with the guide path 120 . The through hole 130 is provided for the locking part 230 of the locking means 200 to be described later to pass therethrough.

The front and rear width of the through hole 130 is formed to be longer than the width of the locking part 230, so that a clearance is provided for the locking part 230 to move forward and backward (radial direction of the body).

And step 140 is formed on both sides of the lower surface of the through hole 130 . The step 140 may be guided by the body portion 210 of the locking means 200 seated therein, and holds the body portion 210 not to be separated upward.

In addition, on the outer periphery of the coupling hole 110 , in other words, on the inner circumferential surface of the through hole 130 , a fixing groove 160 into which one end of the compression spring 300 to be described later can be inserted is formed. The fixing groove 160 is formed to face the guide path 120 .

In addition, a rotation guide projection 180 is formed in the center of the lower surface of the main body 100 . The rotation guide jaw 180 is configured to support the installation of the torsion spring 500 to be described later.

Specifically, the rotation guiding jaw 180 forms a semi-circular shape and a pair is disposed to face each other around the coupling hole 110 . That is, the rotation guide jaw 180 is formed to surround the coupling hole 110 .

At this time, a stopper 181 that is spaced apart from the inside of any one of the rotation guide jaws 180 and prevents the torsion spring 500 from being separated may be formed.

In addition, a socket 190 may be formed on the lower surface of the main body 100 so that a cover plate 600 to be described later can be fitted. Alternatively, the cover plate 600 may be closed in an interference fit manner by forming a fitting jaw along the edge of the lower surface of the main body 100 .

Additionally, between the guide path 120 on the lower surface of the main body 100, a limit groove for limiting rotation within a predetermined angle in a state in which the rotation tag 440 of the safety piece 400, which will be described later, is retracted. 150) is preferably formed.

Next, the locking means will be described.

The locking means 200 is accommodated in the guide furnace 120 and moves forward and backward, and corresponds to a configuration for mounting or dismounting by unlocking the polishing pad 10 by locking the polishing pad 10, the body portion 210, press It is configured to include a portion 220, a locking portion 230, and may have a cross-section of approximately 'B' as shown in FIGS. 2 and 3 .

The body portion 210 may have a substantially rectangular block shape, and is accommodated in the guide path 120 to slide.

The body portion 210 is supported by the cover plate 600 and does not deviate downward, and the left and right sides are guided by the left and right sides of the guide path 120 , and both ends are the stepped 140 of the main body 100 . ), it becomes stuck and slides stably without departing upward.

And a fixing groove 211 into which one end of the compression spring 300 can be inserted is formed in the front of the body portion 210 . The fixing groove 211 of the body part 210 faces the fixing groove 160 of the body 100 and should be disposed on the same axis.

A pressing portion 220 is formed on one side of the body portion 210 .

The pressing part 220 corresponds to a configuration that an operator can press with a finger, is formed at the rear end of the body part 210 , and is exposed and formed to protrude to the outside of the guide furnace 120 .

The pressing part 220 may include an upper pressing jaw 221 extending upward of the body part 210 and a lower pressing jaw 222 extending downward of the body part 210 .

Accordingly, the pressing part 220 is caught without being drawn into the guide furnace 120 .

A locking part 230 is vertically formed on the other side of the body part 210 .

The locking part 230 passes through the through hole 130 and protrudes upward.

And the upper end of the locking part 230 is formed with an upper locking jaw 231 may be formed in a 'L' shape.

The upper locking jaw 231 is formed toward the outside, that is, toward the pressing part 220 , and the width of the upper locking jaw 231 is formed shorter than the width of the mounting hole 11 of the polishing pad 10 . The upper locking jaw 231 should be able to pass through the mounting hole 11 of the polishing pad 10 .

An inclined surface 232 is formed on one side of the upper locking jaw 231 .

When the locking part 230 passes through the mounting hole 11, the inner circumferential surface of the mounting hole 11 presses the inclined surface 232 and the locking part 230 moves backward while the upper part of the inclined surface 232 is The locking jaw 231 is easily caught in the mounting hole 11 .

Next, the compression spring 300 is provided between the body portion 210 of the locking means 200 and the inner circumferential surface of the through hole 130 of the body 100 to elastically support the locking means 200 .

The compression spring 300 may use a coil spring, and both ends of the compression spring 300 are inserted into the fixing groove 160 of the main body 100 and the fixing groove 211 of the body 210, respectively. It is installed in a state where it does not swing left and right.

Since the compression spring 300 is pushing the body part 210 in a compressed state, the body part 210 retreats to the outermost part of the guide road 120 , but the locking part is inserted into the through hole 130 . (230) is caught and stops without further retreating.

When the pressing part 220 is pressed in this state, the body part 210 moves forward toward the coupling hole 110 , and the locking part 230 may also move adjacently toward the coupling hole 110 .

In the present invention, it is preferable that the mounting protrusion 170 is formed so as to protrude from the upper surface of the main body 100 .

The mounting protrusion 170 may be inserted into the mounting hole 11 of the polishing pad 10 together with the locking means 200 , and is polished corresponding to the number of the mounting protrusions 170 and the locking means 200 . A mounting hole 11 is formed in the pad 10 .

As shown, since a pair of locking means 200 are disposed to face each other, the mounting protrusion 170 may also be disposed to face each other.

And correspondingly, four mounting holes 11 of the polishing pad 10 are formed.

The locking means 200 is to lock the polishing pad 10 to the holder so as not to be separated, and the mounting protrusion 170 prevents shaking or rotational vibration of the polishing pad 10, and the polishing pad ( 10) plays a role in holding firmly.

Next, the safety piece 400 will be described with reference to FIG. 6 together. Figure 6 is a bottom plan view showing a state in which the safety piece of the present invention is mounted.

The safety piece 400 is a safety device for preventing the risk of being unlocked by the locking means 200 moving forward when the polishing pad 10 is rotated at a high speed while the polishing pad 10 is mounted.

That is, the safety piece 400 is installed in the main body 100 and is a means for fixing the locking means 200 not to advance, and has a circular disk shape as shown.

A circular insertion hole 410 is formed in the center of the safety piece 400 , and the rotation guide jaw 180 is inserted and accommodated in the insertion hole 410 . That is, the inner diameter of the insertion hole 410 is formed to be longer than the outer diameter formed by the rotation guide projection (180).

In addition, edge grooves 420 are further formed on both sides of the insertion hole 410 . The edge groove 420 may be formed outside from the insertion hole 410 so that a pair of them faces each other.

In addition, fixing protrusions 430 are formed on both sides of the edge of the safety piece 400 . The length of the fixing protrusion 430 extends to the lower pressing jaw 222 . Therefore, when the fixing protrusion 430 is positioned on the lower pressing jaw 222, the locking means 200 is forcibly blocked from advancing because the lower pressing jaw 222 is caught by the fixing projection 430. do.

Meanwhile, a rotation tag 440 is further formed on one side of the safety piece 400 .

The rotation tag 440 may also have a protruding shape, may be positioned between the fixing protrusions 430 , and a pair may be formed to face each other.

The rotation tag 440 is a means for rotating the safety piece 400 while holding the operator's hand, and it is preferable that the rotation tag 440 is long enough to be introduced into the limit groove 150 and exposed to the outside.

In this case, the rotation tag 440 is limited to rotate only within the limit groove 150 .

Next, the torsion spring 500 will be described.

The torsion spring 500 is configured to elastically support the safety piece 400 in the rotational direction.

The torsion spring 500 may have a semicircular wire shape as shown in FIGS. 3 and 7, and may have a shape in which both ends of the first bent part 510 and the second bent part 520 are formed. have.

At this time, the torsion spring 500 is seated on the inside of any one of the rotation guide jaws 180, and is supported. Preferably, it is installed so as to be sandwiched between the stopper 181 and the rotation guide jaw 180 so as to be stably provided.

Here, the first bent part 510 of the torsion spring 500 is inserted and caught in the gap between the rotation guide jaws 180 , and the second bent part 520 is greater than the first bent part 510 . It is formed to be relatively longer and is installed to be drawn into the edge groove 420 .

Accordingly, when the safety piece 400 rotates, the first bent part 510 is caught and supported by the rotation guide jaw 180 , and the second bent part 520 is caught by the edge groove 420 . The safety piece 400 is elastically supported in the rotational direction to be returned to the original position.

That is, the safety piece 400 may be rotated in one direction and then returned to its original position by the torsion spring 500 .

Next, the cover plate 600 is configured to cover and close the lower portion of the main body 100 .

The cover plate 600 may have a circular plate shape.

And a fitting protrusion 610 that can be fitted into the socket 190 formed in the main body 100 is formed on the cover plate or the entire cover plate 600 is placed on a fitting protrusion (not shown) formed on the main body 100 . It can be closed by means of an interference fit.

Accordingly, the cover plate 600 closes the lower portion of the main body 100 and slides while maintaining the locking means 200 accommodated in the guide path 120 , and the safety piece is fixed therein.

Hereinafter, an operation process of the present invention will be described with reference to FIGS. 6 and 7 together. 7 is a diagram of the operating state of the safety piece of the present invention.

First, a process of mounting the polishing pad 10 will be described.

The operator positions the mounting holes 11 of the polishing pad 10 to correspond to the upper locking jaws 231 and the mounting protrusions 170, respectively, and presses the polishing pad 10 .

However, before pressing, as shown in FIG. 7 , when the rotation tag 440 of the safety piece 400 is rotated in one direction using a finger, the safety piece 400 is rotated, and the safety piece 400 is rotated. The fixing protrusion 430 positioned on the lower pressing jaw 222 rotates by the rotation of the lower pressing jaw 222, thereby being separated from the lower pressing jaw 222.

When the polishing pad 10 is pressed in this state, the mounting hole 11 pushes the inclined surface of the upper locking jaw 231, thereby compressing the compression spring 300 while the locking part 230 advances. do.

And when the mounting hole 11 enters the lower side of the upper locking jaw 231, the compression spring 300 expands and the locking part 230 moves backward again. As a result, since the upper locking jaw 231 is caught in the mounting hole 11, the polishing pad 10 is fixed to the holder.

In this state, holding the rotation tag 440 and rotating the safety piece 400 in the opposite direction, the fixing protrusion 430 is positioned on the lower pressing jaw 222 to block the advance of the locking means 200 . That is, even when the polishing pad 10 rotates at a high speed, it is prevented from being separated from the holder.

If the torsion spring 500 is present, the safety piece 400 is elastically supported by the torsion spring 500, and thus the operator tries to return to the original position. By pressing the polishing pad 10 to advance the locking means 200, it can be mounted on the holder.

And when the rotation tag 440 is released, the safety piece ( ) is automatically reversely rotated by elasticity so that the fixing protrusion 430 is positioned on the pressing jaw.

Next, a case in which the polishing pad is detached will be described.

The process of detaching the polishing pad 10 is also shown in FIG. 7 , with the operator holding the rotation tag 440 with a finger and turning the safety piece 400 with the pressing part 220 of the locking means 200 . When is pressed, the body part 210 moves forward while sliding, and thus the upper locking jaw 231 moves, so that the upper locking jaw 231 hung on the mounting hole 11 is detached and detached.

If the torsion spring 500 is present, the polishing pad 10 can be detached by pressing the pressing unit 220 while the operator holds the rotation tag 440 .

When the rotation tag 440 is released after detachment, as shown in FIG. 6 , the safety piece 400 returns to its original position while rotating in the other direction by the restoring force of the torsion spring 500 .

That is, in the present invention, when the polishing pad 10 is mounted, the polishing pad 10 is mounted by pressing the polishing pad 10 once, and detachment is possible by pressing the pressing unit 220 once during removal, so it can be detached with one touch. It has a structure in which the polishing pad 10 is detachable.

In addition, since the safety piece 400 is provided, it is possible to completely prevent the risk of the polishing pad 10 being separated from the holder, which may occur when the polishing pad 10 is rotated at a high speed.

Although a representative embodiment of the present invention has been described above with reference to the drawings, those skilled in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above content. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims as well as the claims and equivalents.

10: polishing pad 11: mounting hole
100: body 110: coupling hole
120: guide 130: through hole
140: step 150: limit home
160: fixing groove 170: mounting projection
180: rotation guide jaw 181: stopper
190: socket
200: locking means
210: body 211: fixing groove
220: pressing part 221: upper pressing jaw
222: lower pressing jaw 230: locking part
231: upper locking jaw 232: inclined surface
300: compression spring
400: safety
410: insertion hole 420: edge groove
430: fixing projection 440: rotation tag
500: torsion spring
510: first bent part 520: second bent part
600: cover plate 610: fitting projection

Claims (5)

In the grinder holder which is fixed to the rotation shaft of the grinder and can be mounted or detached from the mounting hole of the polishing pad,
A coupling hole capable of being coupled to the rotation shaft of the grinder is formed in the center, and a guide path having a shape that is opened toward the outside is formed on both sides, a through hole is formed in an upper upper surface of the guide path, and a coupling hole in the lower surface A body in which a pair of semicircular rotation guide jaws facing each other are formed around;
a locking means that slides along the guide path, has an upper locking jaw that protrudes upward through the through hole on one side and is hooked, and has a lower pressing jaw that extends downwardly on the other side;
a compression spring provided between the locking means and the coupling hole to elastically support the locking means;
a safety piece made of a disk shape, the insertion hole into which the rotation guide jaw is inserted is formed in the center to be rotatable, fixed protrusions protruding to the lower pressing jaw are formed on both sides, and a rotation tag is formed to protrude from one side; and
A cover plate covering the lower part of the main body; consists of including,
The lower pressing jaw is caught on the fixing protrusion to prevent the locking means from being released, and when the locking means is pressed after holding the rotation tag and rotating the safety piece, the locking of the upper locking jaw from the mounting hole can be released. A grinder holder that can attach and detach the polishing pad with one touch. The method of claim 1,
Edge grooves are further formed on both sides of the insertion hole,
Inside the rotation guide jaw,
One-touch mounting and detachment of the polishing pad, characterized in that the torsion spring is formed in a semi-circular shape, one end is inserted between the rotation guide jaws, and the other end is extended and introduced into the edge groove to elastically support the rotation of the safety piece. Grinder holder available. 3. The method of claim 2,
The locking means,
Consists of a body portion sliding along the guide passage in a state accommodated in the guide passage, an upper pressing jaw formed on one side of the body portion and exposed to the outside of the guide, extending upward and a lower pressing jaw extending downward One-touch, characterized in that it comprises a pressing portion formed vertically on the other side of the body portion, protruding upward through the through hole, an upper locking jaw formed at the upper end to the outside, and a locking portion having a lower locking jaw formed at the lower end. A grinder holder that can attach and detach the polishing pad. 4. The method of claim 3,
A grinder holder capable of attaching and detaching a polishing pad with one touch, wherein fixing grooves into which both ends of the compression spring can be inserted and fixed are formed between the inner surface of the through hole and the body, respectively. The method of claim 1,
A grinder holder capable of attaching and detaching the polishing pad with one touch, characterized in that the upper surface of the main body further includes a mounting protrusion that can be inserted into the mounting hole of the polishing pad.

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