CN212044116U

CN212044116U - Grinding disc provided with one-touch type fixing part for clamp

Info

Publication number: CN212044116U
Application number: CN201922373020.4U
Authority: CN
Inventors: 李长熙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-12-25
Publication date: 2020-12-01
Anticipated expiration: 2029-12-25

Abstract

The utility model provides a produce rotary power and use in the mill that carries out cutting process's grinding machine to the processing article through motor or atmospheric pressure, more specifically relates to a install the mill of a touch fixed part for anchor clamps, the mill includes: a grinding section that contacts the work; the fixing part is formed by injection molding, improves the bonding force with the grinding part and is assembled and disassembled on the grinding machine in a touch mode.

Description

Grinding disc provided with one-touch type fixing part for clamp

Technical Field

The utility model relates to a produce rotary power and use in the mill that carries out cutting process's grinding machine to the processing article through motor or atmospheric pressure, more specifically relates to a install mill of a touch fixed part for anchor clamps, the mill includes: a grinding section that contacts the work; the fixing part is formed by injection molding, improves the bonding force with the grinding part and is assembled and disassembled on the grinding machine in a touch mode.

Background

Generally, a grinding machine generates rotational power by a motor or air pressure as shown in fig. 1, and transmits the generated power to a rotating shaft 2 formed on one side of the grinding machine 1, and an abrasive material 6 such as a grinding disc or a grinding wheel is joined to the rotating shaft 2, and is used for cutting or slicing the surface of a machine product.

In the case of a conventional grinding table, as shown in fig. 2, a through hole 6a is formed in the center of the abrasive grains 6, and injection molded objects made of plastic, i.e., an upper fixed disk 4 and a lower fixed disk 5, are inserted into upper and lower portions of the through hole 6a and fixed to the abrasive grains 6, thereby manufacturing a grinding table 8.

To briefly explain the manufacturing process of the conventional grinding pan 8, in a state where the protruding portion of the lower fixed pan 5 is lifted up and set, the adhesive 7 is applied to the cross section of the lower fixed pan 5, the adhesive 7 is also applied to the lower surface around the through hole 6a of the abrasive 6, and the lower fixed pan 5 and the abrasive 6 are bonded and fixed, and then the adhesive 7 is applied to the upper surface around the through hole 6a of the abrasive 6, and the adhesive is applied to the cross section and the inner circumferential surface of the upper fixed pan 4, and the upper fixed pan 4 and the lower fixed pan 5 are bonded and fixed by the adhesive 7, thereby manufacturing the grinding pan.

In this conventional grinding table, the upper fixed disk 4 and the lower fixed disk 5 are fixed by the adhesive 7, which causes a problem of an increase in manufacturing cost due to a complicated manufacturing process and a complicated manufacturing process, and also causes a high possibility of defective products when the adhesive force of the adhesive is reduced.

In particular, in the case of a bonding operation in a high moisture state, the adhesive force of the adhesive 7 is reduced due to the high moisture, the possibility of defective products is high, the adhesive force is gradually reduced over time, and the service life is reduced, and in a serious case, the abrasive 6 is separated from the upper and lower fixed disks 4 and 5 during use, and the abrasive 6 rotating at a high speed is likely to cause a safety accident.

In particular, in order to prevent the occurrence of such a safety accident, the upper and lower fixed disks 4 and 5 may be fixed to each other by a coupling member such as a bolt, thereby complicating the manufacturing process and increasing the manufacturing cost.

Further, there is another problem that the manufacturing environment of the work site is poor due to the use of the adhesive.

As a prior art relating to this abrasive disk, a grinding machine assembly developed in patent publication No. 10-2011-0023596.

In said publication, a grinder assembly is developed, comprising: a grinding machine having a white panel coupled to a rotation shaft to rotate; and a grinding disc coupled to one surface of the white panel, wherein a key-shaped coupling hole is formed in the grinding disc so that a protrusion protruding from one surface of the white panel is coupled to the protrusion of the white panel, and a through hole is formed in a center portion of the grinding disc, and a fixing portion of the grinding disc is inserted into the through hole and fixed, thereby changing a shape of the grinding disc during a grinding operation or reducing a strength of the grinding disc.

As another prior art, a method of manufacturing a grinding table is developed in Japanese laid-open patent publication No. 11-320423.

In the publication, a manufacturing method of a grinding disc is developed in which, when an abrasive is placed inside a mold composed of an upper shape and a lower shape and the mold is fitted, when the abrasive enters a groove portion formed in the mold, and an injection material is put in a cavity of the mold through a gate, and a main portion is formed, a shape of the grinding disc is changed by the mold, strength is lowered, and particularly, a portion having a relatively thin thickness is generated due to the change of the shape of the abrasive, resulting in a reduction in durability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

The utility model aims at providing an install mill of a touch fixed part for anchor clamps, this mill of installing a touch fixed part for anchor clamps includes: a grinding section that contacts the work; the fixing part is formed by injection molding, so that the binding force with the grinding part is improved, and the fixing part is assembled and disassembled on the grinding machine in a touch mode.

Another object of the present invention is to provide a grinding disc having a one-touch type jig fixing portion, the fixing portion having a diameter larger than that of a hole formed in a grinding portion, three fixing protrusions formed on one side of the fixing portion, a locking protrusion formed on one side of the fixing protrusion, and the fixing portion being fixedly coupled to a grinding machine.

Further, another object is to provide a grinding table to which a one-touch jig fixing portion is attached, in which a stepped portion thinner than the thickness of the grinding portion is formed in the center portion of the grinding portion, and the fixing portion is formed in a size of the stepped portion, thereby improving fixing force to the fixing portion of the grinding portion.

Means for solving the problems

The utility model discloses an install mill of a touch fixed part for anchor clamps relates to one kind and produces rotary power through motor or atmospheric pressure to carry out the mill of the grinding machine that cutting process and use to the processing article, mill 10 includes: a polishing unit 11 that performs polishing by directly contacting a workpiece; and a fixing portion 15 to be attached to and detached from the one-touch jig 3 fixed to the grinding machine 1, wherein the fixing portion 15 is formed by injection molding so as to surround a portion of the upper surface and the lower surface of the polishing portion 11 at the center thereof, and after the polishing portion 11 is mounted in a mold, the mold is coupled around the center portion so as to have a certain space, and an injection material is injected into the space and cured, whereby the fixing portion 15 is formed by the injection material, and the air holes existing in the polishing portion 11 are penetrated to improve the coupling force between the polishing portion 11 and the fixing portion 15.

Effect of the utility model

The utility model discloses an install mill of a touch fixed part for anchor clamps has following effect, include: a grinding section that contacts the work; the fixed part, form in the center of grinding portion for with grinding machine 1 loading and unloading, the fixed part forms through injection moulding and improves the cohesion with grinding portion to through a touch mode at the grinding machine loading and unloading, the fixed part is greater than the diameter that forms in the hole of grinding portion, is formed with three fixed arch in one side of fixed part fixed arch one side is formed with the locking arch, the fixed part has and carries out the apparent effect of loading and unloading at a touch anchor clamps that fixed combination in the grinding machine, and, be formed with the ladder portion that is thinner than the thickness of grinding portion in the central part of grinding portion, press the size of ladder portion forms the fixed part, and has the apparent effect of improvement to the stationary force of the fixed part of grinding portion.

Drawings

FIG. 1 is a view showing a conventional grinding machine;

FIG. 2 is a separating structure diagram of a conventional grinding table;

FIG. 3 is a view showing an exemplary configuration of the present invention;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a manufacturing process diagram of the present invention;

fig. 8 is a diagram illustrating another embodiment of the present invention;

fig. 9 and 10 are usage diagrams of the present invention;

FIG. 11 is a diagram of another embodiment of a grinding pan of the present invention;

FIG. 12 is a plan view of FIG. 11;

fig. 13 to 15 are views showing still another embodiment of the present invention.

Description of the reference numerals

1. Grinding machine 2. rotating shaft

3. One-touch clamp

3a. insert projection 3b. insert projection

3c outer peripheral portion 3d inner peripheral portion

4. Upper fixed disk 5, lower fixed disk

6. Abrasive 6a through hole

7. Adhesive 8. grinding disc

9. Combination bolt 10. grinding disc

11. A grinding part 12, a through hole

13. Step 14. cutting groove

15. Fixed part 16, fixed projection

17. Locking projection 18. turning wheel

19. Door 20. concave groove

21. Fixing groove 22, combining groove

UM. Upper die BM lower die

Preferred embodiments of the invention

Detailed Description

The utility model relates to a produce rotary power through motor or atmospheric pressure, and use in the mill that carries out cutting process's grinding machine to the processing article, more specifically for installing the mill of a touch anchor clamps with fixed part, the mill includes: a grinding section that contacts the work; the fixing part is formed in the center of the grinding part and used for being assembled and disassembled with the grinding machine, the fixing part is formed through injection molding, the binding force of the fixing part and the grinding part is improved, and the fixing part can be assembled and disassembled on the grinding machine in a touch mode.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 3 is a view showing an exemplary configuration of the present invention, fig. 4 is a plan view of fig. 3, fig. 5 is a bottom view of fig. 3, fig. 6 is a sectional view of a portion a-a of fig. 5, and fig. 7 is a manufacturing process diagram of the present invention, in which the grinding disc having the one-touch type fixing portion for the jig of the present invention relates to a grinding disc of a grinding machine for generating a rotational power by a motor or an air pressure and for cutting a work, and the grinding disc 10 includes: a polishing unit 11 that directly contacts a workpiece to perform polishing; and a fixing part 15 to be attached to and detached from the one-touch type jig 3 fixed to the grinding machine 1, wherein the fixing part 15 is formed by injection molding so as to surround a portion of the upper surface and the lower surface of the polishing part 11 at the center thereof, and after the polishing part 11 is mounted in a mold, the mold is coupled around the center thereof so as to have a certain space, and an injection material is injected into the space and cured, thereby forming the fixing part 15 by the injection material and simultaneously penetrating the air holes existing in the polishing part 11, thereby improving the coupling force between the polishing part 11 and the fixing part 15.

First, the grinding machine 1 used in the present invention is used for a grinding machine that generates rotational power of the rotating shaft 2 by a motor housed in the grinding machine or generates rotational power by air pressure, a manual grinding machine that performs grinding by gripping with a hand or a general grinding machine that is placed on a floor, and is used when grinding, cutting, or cutting the surface of a work.

The polishing part 11 is manufactured by using an alumina abrasive or a silicon carbide abrasive as an abrasive such as a grinding wheel that performs polishing by directly contacting a workpiece, classifying the abrasive into a granulated abrasive and a fine-particle abrasive according to the abrasive grain size, and compressing particles of ordinary-sized particles.

A through hole 12 penetrating the polishing portion 11 is formed in the center of the polishing portion 11, and the through hole 12 is manufactured by a press die or the like in the manufacturing step of the polishing portion 11, and preferably, the center of the through hole 12 coincides with the rotation center axis of the polishing portion 11.

The through-hole 12 is detachably attached to the grinding machine 1 to form a fixing portion 15, and the fixing portion 15 is formed by injection molding so as to surround a part of the upper surface and the lower surface at the center of the grinding portion, as shown in fig. 6 and 7.

That is, the fixing portion 15 is formed by placing the polishing portion 11 in an insert type injection mold, activating an Upper Mold (UM) to engage with a lower mold (BM), injecting a chemical injection material through a gate 19 formed in the upper mold, and cooling, so that the injection material is used for forming the fixing portion 15 and also enters a plurality of gaps formed in the polishing portion 11, and the polishing portion 11 and the fixing portion 15 are completely adhered to each other to increase the bonding force.

Preferably, the grinding part 11 of the present invention is formed with a plurality of air holes, and the size of the air holes is 0.1 to 2.0 mm.

That is, if the size of the air hole is less than 0.1mm, the injection material is hard to penetrate deeply into the back side of the air hole, that is, it is hard to penetrate deeply, whereas if it exceeds 2.0mm, the strength of the grinding part 11 itself is lowered due to the size of the air hole, and the strength of the grinding table is lowered due to the volume reduction of the injection material during cooling.

The pore size defined herein means the average pore size, and naturally, pores different from the values studied are present to some extent.

The polishing portion 11 is placed in a mold, and a molding material is injected, and after the fixing portion 15 is manufactured, the fixing portion is placed at normal temperature or high temperature, thereby reducing a part of moisture contained in the fixing portion 15.

That is, in the case of the injection molding material which is the material of the fixing portion 15, the strength of the fixing portion 15 is lowered due to a certain moisture content. Therefore, when a certain time passes at normal temperature or high temperature, moisture contained in the fixing portion 15 is evaporated, and thus the volume of the fixing portion 15 is reduced, and the bonding force between the fixing portion 15 and the polishing portion 11 is further increased.

The fixing portion 15 is larger than the diameter of the hole formed in the grinding portion 11, three fixing protrusions 16 are formed on one side of the fixing portion 15, locking protrusions 17 are formed on one side of the fixing protrusions 16, and the fixing portion 15 is attached to and detached from the one-touch jig 3 fixedly coupled to the grinding machine 1.

Two or more coupling holes 22 are formed at equal intervals on one side of the fixing part 15, and the insertion protrusions 3b of the one-touch type jig 3 are inserted into the coupling holes 22, thereby preventing the grinding disc from rotating arbitrarily when grinding work is performed by the grinding disc.

That is, the fixing portion 15 of the present invention is not a general ring-shaped fixing plate, and is formed with three fixing protrusions 16, thereby being coupled to the one-touch jig 3 as shown in fig. 9 in a one-touch manner, and thus the one-touch jig 3 is fixedly coupled to the grinding machine 1 by the coupling bolt 9.

To explain the coupling method more specifically, in a state where the coupling groove 22 of the fixing portion 15 is inserted into the insertion projection 3b of the one touch jig 3, the insertion projection 3a portion of the one touch jig 3 is inserted into the groove formed in the fixing portion 15, and when the grinding disc 10 is rotated at a certain angle in a clockwise direction or a counterclockwise direction around the rotation center axis, the fixing projection 16 formed in the fixing portion 15 and the insertion projection 3a portion formed in the one touch jig 3 are engaged with each other, whereby the grinding disc 10 is completely fixed to the one touch jig 3 fixedly coupled to the grinding machine 1 as shown in fig. 10.

At this time, the insertion boss 3a and the outer peripheral portion 3c of the one-touch jig 3 rotate, but the inner peripheral portion 3d in which the insertion boss 3b is formed does not rotate, and a force pushing the inner peripheral portion 3d upward is applied by a spring formed between the outer peripheral portion 3c and the inner peripheral portion 3d, thereby maintaining the state in which the insertion boss 3b rotates.

Also, the thickness of the fixing protrusion 16 is thicker as the fulcrum of the completion of the coupling of the insertion protrusion 3a, that is, the starting point of the fixing protrusion 16, is more toward the locking protrusion 17 side from the starting point of the insertion protrusion 3a of the one-touch type jig 3, and the force of the insertion protrusion 3a rotating to push the fixing protrusion 16 to each other is increased, thereby increasing the fixing force of the grinding disc.

Further, a locking protrusion 17 is formed at one side of the fixing protrusion 16 to restrict the grinding table 10 from being rotated any more, and prevent the fixing portion 15 from being separated from the one touch jig 13 at any time when the work is performed, and when the grinding table 10 is replaced, the fixing protrusion 16 of the fixing portion 15 is rotated in a direction opposite to the coupling direction, and the coupling between the fixing protrusion 16 of the fixing portion 15 and the insertion protrusion 3a of the one touch jig 3 is released, thereby separating the grinding table 10 from the one touch jig 3.

As shown in fig. 8, the polishing section 11 of the present invention has a stepped portion 13 formed in the center portion and thinner than the outer corners of the polishing section 11, and a fixing portion 15 is formed in accordance with the size of the stepped portion 13.

That is, the thickness of the polishing portion 11 is not necessarily the entire thickness, but a step portion 13 having a relatively thin thickness is formed so as to have a constant radius at the center portion of the polishing portion 11, a fixing portion 15 is formed to be as large as the step portion 13, and the contact area between the polishing portion 11 and the fixing portion 15 is increased, whereby the fixing force is increased, and the polishing area of the polishing portion 11 is prevented from being reduced to some extent by the fixing portion 15. The circumferential surface of the fixing portion 15 is in close contact with the cross section of the polishing portion 11, so that the fixing force is increased to increase the contact area, and the height of the fixing portion 15, i.e., the distance between the outermost cross section of the fixing portion 15 and the polishing portion 11 is relatively reduced, thereby solving the problem of the interference of the polishing work by the fixing portion 15.

Fig. 11 is another example of the grinding disc of the present invention, and fig. 12 is a plan view of fig. 11, the fixing part 15 is constituted so that a runner 18 and a gate 19, which are generated during the injection molding of the fixing part 15, are formed, and the runner 18 and the gate 19 are combined with and separated from a one-touch jig 3 fixedly combined to the grinding machine 1.

That is, when the polishing portion 11 is set in an injection mold and the fixing portion 15 is injection-molded in an insert manner, in order to injection-mold the fixing portion 15, fuel is sufficiently injected into the runner 18 and the gate 19, which are passages through which the fuel passes, and is cooled in this state, whereby the shapes of the runner 18 and the gate 19 are favorably retained inside the fixing portion 15.

The wheel 18 and the door 19 are manufactured in a state that the inside of the fixing portion 15 is left as it is, and then, are separated when the grinding disc 10 is inserted into the one-touch jig 3 for use by a user, whereby it is proved that the product left by the wheel 18 and the door 19 is a new product that has not been used at one time at the fixing portion 15 of the grinding disc 10.

The rotating wheel 18 and the door 19 are easily separated when combined with the one-touch type jig 3, and for this reason, the shape of the door 19 is preferably narrower than the cross section of the rotating wheel 18, and when the cross section of the rotating wheel 18 is proportional to 10, more preferably, the cross section of the door 19 is 2 to 5.

That is, in the case where the sectional area of the gate 19 is less than 2 in comparison with the sectional area 10 of the runner, the sectional area of the gate 19 is very small, the inflow of the injection molding material is not rapidly secured, a large amount of time is consumed in the injection molding process, and there is a possibility that an arbitrary breakage occurs when the product is stored, and in the case where the sectional area of the gate 19 exceeds 5, the gate is not well separated when being coupled with the one-touch jig 3, and thus, it is preferable to maintain the above ratio.

Fig. 13 is a view showing another embodiment of the present invention, in which one or more cutting grooves 14 are formed in the polishing portion 11, and the cutting grooves 14 are formed in a state in which a portion of the fixing portion 15 enters during the injection molding process, thereby improving the coupling force between the polishing portion 11 and the fixing portion 15.

That is, the cut groove 14 is formed in a state of penetrating a part of the polishing part 11, and thus, when the fixing part 15 is injection-molded in an insertion manner, the injection molding material is injected into the cut groove 14 to form the fixing part 15, whereby the coupling force between the polishing part 11 and the fixing part 15 is further improved, and in this case, when the work piece is processed by the grinding disc 10, the polishing part 11 and the fixing part 15 are not arbitrarily separated.

The cutting groove 14 is formed in a T shape as shown in the drawing.

That is, the cutting grooves 14 are not formed in a shape that is simply spread in a straight line in the angular direction from the center of the grinding disc 10, but are formed in a "T" shape, and the upper portion of the "T" shape increases a force against the cutting load in the circumferential direction of the grinding disc 10, that is, the rotational direction, in order to more stably support the processing load applied to the grinding disc 10 when the processing object is cut.

The embodiment shown is such that the cutting flutes 14 are formed on the outside of the fixing portion 15, but they are shown from the outside, but the cutting flutes 14 are formed below the fixing portion 15 and can also be produced in a form not shown from the outside.

Fig. 14 and 15 are views illustrating another embodiment of the present invention, in which a recess groove 20 is formed in the through hole 12 of the polishing portion 11 by recessing at a predetermined depth instead of the cutting groove, or more than one fixing groove 21 is formed around the through hole 12.

That is, the concave groove 20 and the fixing groove 21 are also injection-molded in the insertion shape of the fixing portion 15 like the cutting groove 14, thereby increasing the fixing force, thereby increasing the force against the cutting load to the work piece, and the abrasive portion 11 is not separated from the fixing portion 15 in use, thereby increasing the stability.

Industrial applicability

The utility model discloses an install mill of a touch fixed part for anchor clamps includes: a grinding section that contacts the work; the fixed part forms in the center of grinding portion in order to be used for with the grinding machine loading and unloading, the fixed part forms through injection moulding and improves the cohesion with grinding portion, has the effect through one touch mode and at the grinding machine loading and unloading, the fixed part forms the diameter that is greater than the hole that forms in grinding portion, is formed with three fixed arch in one side of fixed part be formed with the locking arch in fixed protruding one side, the fixed part has can be in the apparent effect of the one touch anchor clamps loading and unloading of fixed combination in the grinding machine, simultaneously, has in the central part of grinding portion forms the ladder portion with the mode of being thinner than the thickness of grinding portion, and according to the size formation fixed part of ladder portion improves the apparent effect to the stationary force of the fixed part of grinding portion.

Claims

1. A grinding disc provided with a fixed part for a one-touch clamp, which relates to a grinding disc of a grinding machine for generating rotary power through a motor or air pressure and cutting a processed article,

the grinding disc (10) comprises:

a polishing unit (11) that performs polishing by directly contacting a workpiece;

a fixing part (15) for mounting and dismounting with a one-touch type clamp (3) fixed on the grinding machine (1),

the fixing part (15) is formed by surrounding a part of the upper and lower surfaces from the center of the polishing part (11) by injection molding,

the injection molding is performed by mounting the polishing part (11) in a mold, then bonding the mold around the center part so as to form a certain space, injecting an injection material into the space, and curing the injection material, thereby forming the fixing part (15) with the injection material, and simultaneously, penetrating the pores existing in the polishing part (11) to improve the bonding force between the polishing part (11) and the fixing part (15),

the fixing part (15) is formed by placing the polishing part (11) in an insert type injection mold, starting the upper mold to engage with the lower mold, injecting a dosage-like injection molding material through a gate (19) formed in the upper mold, and cooling the injection molding material, whereby the injection molding material is used for forming the fixing part (15) and simultaneously enters a plurality of gaps formed in the polishing part (11), the polishing part (11) and the fixing part (15) are completely adhered to each other to improve the bonding force,

the fixing part (15) is larger than the diameter of the through hole (12) formed on the grinding part (11), three fixing bulges (16) are formed on one side of the fixing part (15), a locking bulge (17) is formed on one side of the fixing bulges (16), the fixing part (15) is assembled and disassembled on a one-touch clamp (3) fixedly combined on the grinding machine (1),

the thickness of the fixing projection (16) is thicker as the starting point of the first insertion projection (3a) to which the one-touch jig (3) is coupled is closer to the locking projection (17) side at the fulcrum of completing the coupling of the first insertion projection (3a), that is, the starting point of the fixing projection (16).

2. The grinding disc mounted with the fixing part for one-touch jig according to claim 1,

more than two combining holes (22) are formed at one side of the fixing part (15) at equal intervals, and the second inserting protrusion (3b) of the one-touch clamp (3) is inserted into the combining holes (22), so that the grinding disc is prevented from rotating randomly when grinding operation through the grinding disc is carried out.

3. The grinding disc mounted with the fixing part for one-touch jig according to claim 1,

a plurality of air holes are formed in the grinding part (11), and the size of the air holes is 0.1-2.0 mm.