KR100421742B1 - A rotation plate having embossed surface in steel core the diamond cutting wheel - Google Patents

Abstract

According to the present invention, a wave portion having a convex shape formed in a convex shape on the front and rear surfaces of the rotor from the outer periphery of the rotor is formed at equal intervals, and a planar portion having a plurality of holes perforated between the wave and the wave is respectively formed. It is provided and alternately formed, and a plurality of equal intervals are formed along the outer circumference of the rotating body in order to protect the outer surface of the wave portion inserts a diamond tip for forming a protective diamond tip corresponding to the concave-convex groove is formed into a disc shape Appropriately spaced around the outer circumferential surface of the rotating body sintered diamond tip and attached to the inner and central portion of the rotating body to form a wave shape in the radial interval from the direction of the central axis to form a local rigidity, To increase the overall rigidity, and to increase the rigidity In order to prevent the stiffness concentration from occurring, a flat portion is placed between the wave portion and the wave portion to enable efficient dispersion of the rigidity, and the wave portion is placed on the surface of the rotating body so as not to be damaged by friction with the workpiece during the cutting process. At the same time, a number of diamond tips for protecting the wave portion are attached and grooves are formed inside the attachment portion to effectively release heat generated during cutting, and a plurality of holes are drilled in the wave portion and the flat portion to prevent air flow. The present invention relates to an industrial diamond cutting wheel having a rotatable flexible convex surface for increasing the cooling effect by the same.

Description

A rotating plate having embossed surface in steel core the diamond cutting wheel

The present invention, such as a sawing machine, grinding wheel machine, or core drilling machine in order to process, such as cutting, grinding and drilling of stone, such as marble, concrete, rock, and other difficult materials such as metal, ceramic, etc. In particular, the present invention relates to a diamond cutting wheel for use in mounting to a cutting tool. The diamond cutting wheel is particularly well spaced around an outer circumferential surface of a rotating body, which has a disk shape, and is sintered and attached to a diamond tip. The wave parts are arranged radially in a radial direction from the direction of the central axis, thereby providing local stiffness to increase the overall rigidity, and planar between the wave-shaped wave parts and the wave parts so that stiffness concentration does not occur when the stiffness is increased. Part to enable rigid dispersion, and the wave part may rub against the workpiece during the cutting process. In order to prevent damage by attaching a number of diamond tips for protecting the wave portion on the surface of the rotating body, at the same time to form a groove inside the attachment portion to effectively release the heat generated during the cutting process, the wave portion and the plane An industrial diamond cutting wheel having a rotating flexible concave surface for drilling a plurality of holes in a portion to increase a cooling effect by air flow.

In general, diamond has high hardness and thermal conductivity, so it shows excellent performance as cutting tools and wear-resistant tools, and is used for various purposes. Especially, non-ferrous metals such as Al-Si alloys and CUs, which are difficult to machine, and composite materials And semi-sintered bodies such as graphite, polymer composite materials, and ceramics. In the processing of such hardened materials and various stone and metal materials described above, many diamonds having the highest hardness value are used. Its use is also essential.

By using diamond properties, diamond powder is coated on the surface of the tool for grinding, cutting, etc. of stones, hard materials, and metals, or it is in the range of about 0.2 to several hundred μm through vacuum coating method. A diamond tip is used by coating diamond-bonded particles on the surface to be bonded of a tool such that the roughness Ra value is in the range of approximately 0.1 to 100 µm.

In order to form the diamond tip as described above, a sintered diamond tool is formed by using a vapor deposition method on a base material or by depositing a diamond film on a base material processed into a certain shape to have a complete diamond structure. In view of the above abrasion resistance and the reduction of manufacturing cost, the research is being conducted in various angles. Also, various vapor deposition methods such as chemical vapor deposition (CVD) are coated. As such, the details regarding the manufacture of the diamond tip are excluded from the scope of the present patent, and thus detailed description thereof will be omitted.

Meanwhile, a plurality of diamond tips manufactured by other known methods are arranged on the outer circumferential side of the rotating body made of steel sheet or cemented carbide, and then sintered and attached at high temperature and high pressure to form concave grooves between adjacent diamond tips. In the cross section, the corrugated portion, which is concave-convex when viewed in cross section, is connected to the groove in the middle of the rotating body and is formed radially. Such concave portions are connected to the grooves, which in turn increase the rigidity of the rotating body and induce the flow of air to dissipate heat generated during cutting or cutting residues such as chips to the outside. At the same time, when the cutting wheels are used in a state where a plurality of cutting wheels are overlapped, heat is generated and the discharge path of the chip is possible.

However, such a cutting wheel extends and extends from the middle of the rotor to the groove of the circumference gradually. If the damage is caused by scratches or some external force on the outer end of the pleat during cutting, When the cutting wheel rotates at a high speed due to an unbalanced weight distribution of the cutting wheel, severe shaking may occur or it may be difficult to perform precise cutting work. (Cited in Patent No. 247439)

In addition, the cutting wheel is manufactured through a heat treatment and a cooling process, etc. At this time, the cutting wheel, that is, the rotating body itself is irregularly deformed due to external factors or physical properties, or stiffness is distributed in a certain area. It has been pointed out that a significant problem that greatly impairs the safety of the operator due to rupture, breakage or the resulting debris when performing cutting operations such as cutting and polishing using a cutting wheel.

Therefore, in order to solve such a problem, as shown in FIG. 8, a corrugated portion 22 radially connected to the central shaft hole 11 and the diamond tip 12 intermediate portion of the diamond tip cutting wheel 10 is formed therebetween. Patent No. 247439, cited above, which is previously registered with the Korean Intellectual Property Office, which includes a straightening portion 26 having no wrinkles and a plurality of reinforcing tips 24 extending radially inward from the diamond tip 12. Is disclosed.

However, in this case, when attaching the protective diamond tip, that is, the reinforcement tip to the pleats, as shown in Figure 9 formed by inserting a plurality of grooves (110) in the appropriate place on the outer peripheral surface of the rotating body 10 by attaching by sintering method Therefore, it can be expected to improve the durability of the rotating body and a certain effect of the steel component cloth, but the rotational force generated from the inside of the rotating body and the stress generated therefrom during the machining operation by high-speed rotation, such as cutting, polishing using a cutting wheel such as The distribution of stiffness and the stiffness distributed in a certain part during rotation and wear and tear caused by cutting and frictional force of the part of the protective diamond tip that is subjected to heavy force of the rotating body by the frictional force are inconsistent phenomenon. The problem that compromised safety could not be completely solved.

That is, the grooves of the rotating body are formed obliquely and formed with a flat surface in a straight line so that the protective diamond tip inserted and sintered into the grooves is often separated by a long time or excessive distribution force of the cutting wheel. It became.

Therefore, the present invention has been made to solve the above problems, alternatingly formed wave portion and the planar portion to enable the diffusion distribution of the stiffness generated by the machining operation during diamond cutting wheel, and the workpiece chip generated during cutting In order to prevent undesired discharge and breakage of the wave part, the protective diamond tip, which is formed in the same width as the diamond tip, is inserted into the uneven groove which is drilled in the direction of the center from the outer circumferential surface of the rotating body, It is completely prevented from being separated by concentrated stress, distributed stress, and stiffness, so that it can be used until the diamond tip of the cutting wheel is completely exhausted, and the air flow is induced by a plurality of holes perforated in the flat part. To maximize the heat release effect and the cooling effect Rock and, to improve the reliability of the product according to the durability and safety, extending the useful life of the work it is an object.

1 is a front view showing the configuration of a diamond cutting wheel of the present invention,

Figure 2 is a front view showing the configuration before the rotation of the diamond cutting wheel of the present invention,

3 is a partial longitudinal sectional view of the diamond cutting wheel,

4 is a perspective view showing the concave-convex groove of the protective diamond tip and the rotating body,

5 a, b are views showing another embodiment of the present invention,

6 and 7 is another embodiment of the present invention

8 is a front view showing the configuration of a conventional diamond cutting wheel,

FIG. 9 is a front view illustrating a rotating body before processing of the conventional diamond cutting wheel of FIG. 8.

-Brief description of the major symbols in the drawings-

100; Diamond cutting wheel 110; Diamond tip 111; Protective Diamond Tips

112; Uneven portion 120; Rotating body 122; Through

123; Plane portion 124; Uneven groove 130; Central axis

140; slot

The present invention for achieving the above object,

In the diamond cutting wheel 100 is sintered attached to the diamond tips 110 arranged in a plurality of equal intervals arranged on the outer peripheral surface of the rotating body 120 made of steel,

Wave portions 121, which are convexly convex in the front and rear surfaces of the rotor 120 from the outer periphery of the rotor 120 to the inside, are formed to have an evenly spaced alternating arrangement, and the wave unit 121 and the wave unit 121 are formed. A plurality of through-holes 122 are provided between the planar portion 123 to be drilled and alternately formed, respectively,

Protective diamond tip is formed with a concave-convex portion 112 corresponding to the concave-convex groove 124 to protect the outer surface of the wave portion 121 to the concave-convex groove 124 is formed in a plurality of equal intervals along the outer peripheral surface of the rotor 120 It is characterized by the configuration that the 111 is inserted and sintered.

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

1 is a front view showing the configuration of the diamond cutting wheel of the present invention, Figure 2 is a front view showing the configuration of the rotating body of the diamond cutting wheel of the present invention, Figure 3 is a partial longitudinal cross-sectional view of the diamond cutting wheel, 4 is a perspective view showing the uneven groove of the protective diamond tip and the rotating body, Figure 5 a, b is a view showing another embodiment of the present invention, Figure 6, 7 is another embodiment of the present invention. .

As shown in the accompanying drawings, the present invention uses a cutting wheel, that is, a diamond cutting wheel 100 for sintering and attaching the diamond tip 110 to be applied to cutting, polishing, etc. of various stone materials, hard materials, or metal materials. It is to ensure the stiffness that can be generated when performing various machining operations such as cutting and polishing, and to ensure uniform distribution and diffusion, thereby prolonging service life, safety, etc., as shown in FIG. A concave-convex groove 124 is formed at a predetermined length from the outer circumferential side of the rotating body 120 to be the wheel 100 toward the inner central shaft hole 130.

The uneven groove 124 is for sintering the protective diamond tip 111 to be described later, the uneven groove 124 is formed to the outer surface of the protective diamond tip 111 corresponding to the irregular shape repeatedly formed to the inner peripheral surface The concave-convex portion 112 to be inserted is sintered in a state in which it is firmly fixed and fixed, thereby being able to be fixed to the rotating body 120.

Thus secured diamond tip 110 is a diamond cutting wheel 100 is rotated at a high speed by the mutual binding force between the uneven portion 112 and the uneven groove 124 to perform cutting, grinding work and the like from impact or stiffness from the outside Even if it is concentrated, it can withstand the external force sufficiently to prevent the protective diamond tip 111 from easily falling out of the rotating body 120, and significantly reduce the risk of injury to the worker's body due to the departure. In addition, a safe working environment can be achieved

In addition, the width of the diamond tip 111 for protection to be the same as the width of the diamond tip 110 sintered to the outer peripheral surface of the rotating body 120, the surface of the workpiece and the surface of the rotating body 120 during the machining operation with the workpiece It is desirable to make it possible to eliminate the friction and abrasion of the direct contact.

On the other hand, as shown in Figure 5a the rotating body 120 to be smooth as described above, as shown in FIG. However, from the outer circumferential surface may be formed without being arc-like short-circuit toward the central axis hole 130, or may be formed short-circuit as shown in FIG.

In addition, by spacing the gap between the wave portion 121 and the wave portion 121 so that the flat portion 123 is formed, a plurality of through holes 122 are drilled on the flat portion 123, generated during the cutting operation The high heat of the rotating body 120 is diverted by the flow of outside air induced through the through-hole 122 to enable natural cooling by the outside air and at the same time, to facilitate the smooth discharge of the chips generated from the cutting body. do.

The stiffness generated during the cutting process by repetition and alternating the wave portion 121 and the flat portion 123 on the rotating body of the diamond cutting wheel 100, the torsional stress caused by the rotation moment, deformation due to high heat It prevents the occurrence of stress on any part, that is, locally, and distributes the stress, stiffness, and force uniformly on the flat part 123, so that vibration, torsion, and noise during cutting due to high-speed rotation are possible. Therefore, it is possible to completely prevent the side wear with the workpiece and the resulting incomplete machining.

Unlike in the above embodiment, as shown in Figure 5b, the wave portion 121 and the planar portion 123 is formed alternately arranged only on the outer peripheral surface side of the rotating body 120 and the central portion of the central shaft hole 130 Sintering the diamond tip 111 for protection between the wave portion 121, but the radially curved from the outer peripheral surface of the rotating body 120 to the central axis hole 130, the rotating body 120 is formed in advance along the circumferential surface Inserted into the uneven groove 124 of the) and to be sintered, and only a flat portion 123 is formed between the outer end of the wave portion 121 and the diamond tip 110, and at the same time the high portion of the flat portion 123 In order to facilitate the discharge and discharge of the chip generated from the workpiece, a plurality of through holes 122 may be drilled, and only a flat portion may be formed between the rear end of the wave portion 121 and the central shaft hole 130. When cutting at high speed It is generated so that a uniform distribution can be achieved, such as stress, rigidity.

At this time, as in the above-described embodiment, the diamond of the rotating body 120 can be prevented from rubbing and abrasion because both surfaces of the rotating body 120 are directly contacted with the cutting object by the protective diamond tip 111. It is desirable to equal the tip 110 width.

6 is a view showing another embodiment of the present invention, in this case, a plurality of diamond tips 110 are sintered at equal intervals in the circumferential surface of the rotating body 120 and at the same time the rear end of the diamond tips 110 The wave portion 121 and the protective diamond tip 111 extending a predetermined length from the side to the center axis hole 130 in a straight line, and a plurality of through-holes 122 are formed in between the plane portion 123 After the short-circuit after a certain length of extension, the wave portion 121 and the protective diamond tip 111 is arranged to form a straight line with the central axis hole 130 along the circumferential surface of the rotating body 120.

Meanwhile, FIG. 7 is another embodiment in which the configuration of the present invention is applied to the diamond cutting wheel 100 having the slot 140. The slot 140 and the slot 140 are formed at equal intervals on the circumferential surface of the rotating body 120. The front and rear surfaces of the rotating body 120 of the diamond cutting wheel 100 by sintering and attaching the diamond tip 110, so that the wave portion 121 as described above is curved in the central axis hole 130 and Sintering and attaching the protective diamond tip 111 between the portion 121 and the wave portion 121, so that the flat portion 123 is made therebetween, each of its rear end, that is, the protective diamond tip 111 and the wave portion ( While the wave portion 121 and the flat portion 123 are alternately formed in the state spaced apart at the rear end side of the rear end 121 again, the protective diamond tips 111 are arranged at equal intervals at the proper position, and the flat portion 123 is disposed. To make a plurality of through holes 122 As due to the high speed it can be made uniform distribution of rigidity during the rotation of diamond cutting wheel 100 and to enable easy discharge of the cooling and the cutting chip by the heat of high temperature.

Therefore, when the diamond cutting wheel of various embodiments according to the present invention is mounted and used in an apparatus such as a cutting tool, chips of the workpiece generated in the process of cutting and grinding the workpiece and smoothly flow out to the outside. In addition, the air is guided through a plurality of through holes and flows out to the diamond cutting wheel to release the high heat generated during the cutting process to increase the cooling effect, and at the same time the stress and stiffness generated during the cutting process are uniformly distributed in the rotating body. The vibration, crack, noise, etc. can be completely prevented, and the durability, wear resistance, and strength of the diamond cutting wheel can be improved.

In addition, the outer peripheral surface of the protective diamond tip of the diamond cutting wheel is formed by the uneven portion, and inserted and sintered into the uneven groove of the rotating body to protect the rotating plate during cutting of the workpiece, and the protective diamond tip is dislodged during the high speed cutting. By prolonging the service life of the protective diamond tip significantly, and preventing accidents occurring from the protective diamond tip detached during operation, the safe working environment can be expected to achieve the effect.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention may be applied to those skilled in the art without departing from the spirit of the present invention. Of course, various changes and modifications are possible.

Claims (4)

In the diamond cutting wheel 100 is sintered attached to the diamond tips 110 arranged in a plurality of equal intervals arranged on the outer peripheral surface of the rotating body 120 made of steel, Wave portions 121, which are convexly convex in the front and rear surfaces of the rotor 120 from the outer periphery of the rotor 120 to the inside, are formed to have an evenly spaced alternating arrangement, and the wave unit 121 and the wave unit 121 are formed. A plurality of through-holes 122 are provided between the planar portion 123 to be drilled and alternately formed, respectively, Protective diamond tip is formed with a concave-convex portion 112 corresponding to the concave-convex groove 124 to protect the outer surface of the wave portion 121 to the concave-convex groove 124 is formed in a plurality of equal intervals along the outer peripheral surface of the rotor 120 An industrial diamond cutting wheel having a rotating body having a convex-concave surface, characterized by inserting and inserting 111. The method of claim 1, The wave portion 121 and the flat portion 123 is extended radially from the shortest outer circumferential surface of the rotating body 120 toward the central axis hole 130, the protective diamond tip 111 is the shortest of the rotating body 120 Industrial diamond cutting wheel having a rotating body of the concave-convex surface comprising an elongated radially arranged and evenly spaced from the outer peripheral surface toward the central axis hole (130). The method of claim 2, Industrial diamond having a rotating body of the concave-convex surface including the wave portion 121 and the protective diamond tip 111 is formed short-circuited. The method according to claim 1 and 3, The wave portion 121 and the protective diamond tip 111 is an industrial diamond having a rotating body of the convex-convex surface comprising a straight line formed from the outer peripheral surface of the rotating body 120 toward the central axis hole (130).