WO2015065099A1 - 방진패드 및 이를 포함하는 원형톱, 금속판 절단 장치 - Google Patents

방진패드 및 이를 포함하는 원형톱, 금속판 절단 장치 Download PDF

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Publication number
WO2015065099A1
WO2015065099A1 PCT/KR2014/010357 KR2014010357W WO2015065099A1 WO 2015065099 A1 WO2015065099 A1 WO 2015065099A1 KR 2014010357 W KR2014010357 W KR 2014010357W WO 2015065099 A1 WO2015065099 A1 WO 2015065099A1
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WO
WIPO (PCT)
Prior art keywords
pad
saw blade
circular saw
vibration
magnet
Prior art date
Application number
PCT/KR2014/010357
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
문창호
최강혁
임승호
이성진
남용호
김원수
강정문
신건
김병진
이미현
박봉희
김철진
박은진
Original Assignee
주식회사 포스코
주식회사 신진에스엠
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020130132462A external-priority patent/KR101485708B1/ko
Priority claimed from KR1020130132463A external-priority patent/KR101485709B1/ko
Priority claimed from KR1020130135311A external-priority patent/KR101530779B1/ko
Application filed by 주식회사 포스코, 주식회사 신진에스엠 filed Critical 주식회사 포스코
Priority to CN201480060258.9A priority Critical patent/CN105813788B/zh
Priority to JP2016527238A priority patent/JP6283744B2/ja
Publication of WO2015065099A1 publication Critical patent/WO2015065099A1/ko
Priority to PH12016500787A priority patent/PH12016500787A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/02—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock mounted on a carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/005—Vibration-damping

Definitions

  • the present invention relates to an anti-vibration pad, a circular saw, and a metal plate cutting device, and more particularly, to reduce vibrations generated when cutting a metal plate, and to improve the quality of the metal plate cutting surface.
  • the present invention relates to a circular saw and a metal plate cutting device capable of preventing vibration, increasing the life of the circular saw, and improving the quality of the cutting surface.
  • Figure 1a shows a conventional circular saw blade
  • Figure 1b shows a mechanical cutting device using a conventional circular saw blade 10.
  • FIG. 2 is a figure which shows the porous shape applied to the conventional circular saw blade 10. As shown in FIG.
  • circular saws are mainly used for cutting rods or thin plates, so they are not susceptible to vibration, and thus no additional device is required to reduce vibration.
  • Korean Patent Publication No. 2009-0116256 name of the invention: circular saw blade contact guide and circular saw cutting device employing the same
  • Figure 1 a dustproof pad ( 20).
  • a plurality of holes 11 may be formed in the existing circular saw blade 10, and such a porous structure may effectively heat heat due to friction generated between the saw blade and the workpiece. To be released.
  • the plurality of holes 11 formed in the circular saw blade 10 provide a cause for the circular saw blade to be flexible, which in turn makes the circular saw vulnerable to vibration or inhibits the structural integrity of the circular saw. Acts as.
  • Cutting method using gas is also widely used in order to avoid the problem of mechanical cutting for the ultra-thick metal sheet material, but in the case of gas cutting, cutting snow generated by molten steel flowing from the cutting surface of the metal sheet is inevitably inevitable. Due to the nature of the melting method using a cutting nozzle, the cutting speed is slow, and the cutting surface is also uneven, which inevitably leads to a reduction of the cutting surface quality.
  • the present invention provides a plurality of pads for controlling the vibration of the saw blade portion, and specifically proposes to provide a structure for controlling the vibration by allocating a uniform elastic support force to the saw blade portion.
  • Still another object of the present invention is to provide a fastening member for fastening a plurality of pads to the pad fixing part, respectively.
  • Still another object of the present invention is to provide a structure capable of releasing heat generated by friction between the saw blade and the pad.
  • Still another object of the present invention is to provide a pad fixing part formed in a fan-shaped plate shape in which the area becomes wider toward the outer circumferential direction of the saw blade part.
  • Still another object of the present invention is to provide a pad having rounded corners.
  • the present invention is to propose a circular saw that can prevent the vibration generated from the structure of the circular saw, increase the life of the circular saw, and improve the quality of the cutting surface.
  • the anti-vibration pad according to the embodiment of the present invention includes a plurality of pads for controlling vibration by surface contact with one side of a saw blade portion for cutting a metal plate, and pads formed at a position adjacent to a center of the saw blade portion to fix the pads. And a fixing part.
  • the plurality of pads may include a fastening member for fastening the pad fixing portion, respectively.
  • the pad may include a plurality of elastic members for distributing a uniform elastic support force to the saw blade portion and a plurality of fixing grooves for fixing one side of the elastic member.
  • edge portion of the pad may be rounded.
  • the pad fixing portion may include a plurality of receiving grooves for receiving the elastic member of the pad.
  • the pad fixing portion is formed in the shape of a fan-shaped plate that becomes wider toward the outer circumferential direction from one point in contact with the center of the saw blade portion adjacent, the portion adjacent to the outer circumference is formed to be bent at right angles along the outer circumference Can be.
  • the receiving groove may be formed in a plurality of columns and rows in the circumferential direction and the radial direction of the dustproof pad.
  • the size of the receiving groove may be formed smaller than the size of the pad.
  • the fastening member may be fastened to one side of the through hole formed in the center of the pad, the other side of the fastening groove formed in the pad fixing portion.
  • a circular saw having a circular saw blade that rotates along a first plane, the circular saw blade in a state in which the circular saw blade in parallel with the circular saw blade at a first distance from the rotation axis in a first direction away from the rotation axis of the circular saw blade A suppressing first inner dustproof pad; And a first outer dustproof pad for suppressing vibration of the circular saw blade in a state in which the circular saw blade is placed in parallel with the circular saw blade at a second distance farther from the rotation axis in the first direction.
  • a saw is provided.
  • the first outer dustproof pad may be spaced apart from the first inner dustproof pad by a predetermined distance in the first direction.
  • the first inner dustproof pad may be installed closest to the inner circumference of the circular saw blade, and the first outer dustproof pad may be installed closest to the outer circumference of the circular saw blade.
  • the first inner dustproof pad and the first outer dustproof pad may increase in width in the first planar direction as they move away from the rotation axis.
  • the width of the first outer dustproof pad in the first planar direction may be equal to or greater than the width of the first inner dustproof pad in the first planar direction.
  • At least one of the first inner dustproof pad and the first outer dustproof pad may be formed in a trapezoidal shape bent along the circumference of the circular saw blade.
  • the circle formed by the bent surface of the first inner dustproof pad may be concentric with the circular saw blade.
  • the circle formed by the bent surface of the first outer dustproof pad may be concentric with the circular saw blade.
  • the size of the center angle of the fan shape formed by the bent surface of the first inner dustproof pad and the rotating shaft may correspond to the size of the center angle of the fan shape formed by the bent surface of the first outer dustproof pad and the rotating shaft.
  • the central angle may be 35 to 40 degrees.
  • a second outer dustproof pad for suppressing vibration of the circular saw blade in a state in which the circular saw blade is placed in parallel with the circular saw blade at the second distance in the second direction.
  • the first direction and the second direction may be opposite to each other.
  • the circular saw blade may be formed with a plurality of holes along the circumference of the circular saw blade.
  • the plurality of holes may be formed within the predetermined interval.
  • the size of the plurality of holes may have two or more types of sizes.
  • the pad includes: a first magnet attached to an opposite surface of the circular saw blade in the pad; And a second magnet spaced apart from the first magnet to generate a repulsive force corresponding to the first magnet to apply a clamping force to the pad.
  • the first and second magnets of the pad are formed in a ring shape
  • the pad is connected to the ring-shaped first and second magnets, and further comprises a guide member for guiding movement of the first and second magnets. It may include.
  • the pad may be fixed to the second magnet, and may further include an adjustment screw that rotates to move the second magnet to adjust a distance between the first and second magnets.
  • the pad fixing part may cover the pad, the first magnet, and the second magnet, and include a screw hole coupled to the adjusting screw.
  • the diameter of the inner circumference of the first magnet may be smaller than the diameter of the inner circumference of the second magnet, and the diameter of the outer circumference of the first magnet may be larger than the diameter of the outer circumference of the second magnet.
  • the guide member may include first and second guide rings perpendicular to a surface of the saw blade and fixed to inner and outer circumferential surfaces of the first magnet; And third and fourth guide rings perpendicular to the surface of the saw blade and fixed to the inner and outer circumferential surfaces of the second magnet.
  • the diameter of the first guide ring may be smaller than the diameter of the third guide ring, and the diameter of the second guide ring may be larger than the diameter of the fourth guide ring.
  • the pad may be a cutting oil supply unit for supplying cutting oil to reduce the friction between the anti-vibration pad and the circular saw blade.
  • the present invention is a support for which a metal plate is located on the upper surface; A frame part supported on the upper surface of the support part; And a cutting part movable along the frame part, the cutting part including a saw blade for rotating the shaft to be positioned above the metal plate to cut the metal plate, wherein the saw blade has a circular saw blade having a plurality of teeth, and the circular saw blade. It includes an anti-vibration pad to be attached, wherein the anti-vibration pad can provide a metal plate cutting device that is the above-described anti-vibration pad.
  • FIG. 1 is a view showing a conventional circular saw blade
  • b is a view showing a mechanical cutting device having a prevention pad on one side of the conventional circular saw blade.
  • Figure 2 is a diagram showing the disc distortion by asymmetrical fastening of the circular saw clamping portion.
  • Figure 3a is a state diagram showing a state in which the anti-vibration pad is mounted on the saw blade portion according to the present invention
  • Figure 3b is a front view of a state in which the prevention pad according to the present invention is mounted on the saw blade portion.
  • Figure 4 is an exploded perspective view of the dustproof pad of the present invention.
  • FIG. 7 is a view showing an operating state of the anti-vibration pad of the present invention.
  • FIG. 8 is a view showing the cutting speed compared to the gas cutting in the prior art when applied to the ultra-thick metal plate having a strength 400MPa, width 1200mm and thickness 200mm with a dustproof pad according to the present invention.
  • FIG. 9 is a view showing a front view of a circular saw according to another embodiment of the present invention.
  • FIG. 10 is a view showing in more detail the positional relationship of the components constituting the circular saw according to an embodiment of the present invention.
  • FIG. 11 is a view showing a perspective view of a circular saw according to an embodiment of the present invention.
  • FIG. 12 is a diagram illustrating vibration waves generated along the circumferential direction of the circular saw blade as vibration waves generated when the circular saw blade is rotated.
  • FIG. 13 is a diagram illustrating vibration waves generated along the radial direction of the circular saw blade as vibration waves generated when the circular saw blade is rotated.
  • 15 is a view showing in more detail the porous shape formed on the circular saw blade according to an embodiment of the present invention.
  • 16 is a view showing an increase in the natural frequency according to the application of the circular saw according to an embodiment of the present invention in comparison with the prior art.
  • 17 is a view showing the vibration amount compared to the prior art according to the application of the circular saw according to an embodiment of the present invention.
  • FIG. 18 is a perspective view of one embodiment of a metal plate cutting device according to the present invention.
  • FIG. 19 is a schematic cross-sectional view of the metal plate cutting device shown in FIG. 18.
  • 20 and 21 are schematic cross-sectional views for explaining the saw blade portion shown in FIG.
  • 22 is a graph for explaining the change in the clamping force according to the vibration amount of the circular saw blade.
  • FIG. 23 is a schematic cross-sectional view for explaining a saw blade portion of another embodiment of a metal plate cutting device according to the present invention.
  • FIG. 24 is a schematic plan view for describing the saw blade portion illustrated in FIG. 23.
  • FIG. 25 is an enlarged view of area A of FIG. 24.
  • 26 and 27 are schematic cross-sectional views for explaining the saw blade portion of another embodiment of a metal sheet cutting apparatus according to the present invention.
  • the present invention relates to a vibration reduction device of a circular saw to enable high-speed cutting in a mechanical cutter having a large diameter circular saw blade for cutting a very thick (for example, 100mm or more thick) metal sheet material.
  • a plurality of holes are disposed between the circular saw inner and the outer anti-vibration pads so that they can be applied simultaneously with the anti-vibration pads.
  • Figure 2 is a diagram showing the disc distortion by asymmetrical fastening of the circular saw clamping portion
  • Figures 3a, 3b is a state diagram showing a state in which the anti-vibration pad 100 according to the present invention is mounted on the saw blade (1)
  • 4 is 5 and 6 are partially exploded perspective views of the dustproof pad 100 of the present invention.
  • the anti-vibration pad 100 has a plurality of pads 10 and the saw blade portion for controlling the vibration by surface contact with one side of the saw blade portion 1 (
  • the pad fixing part 20 is formed at a position adjacent to the center of 1) to fix the plurality of pads 10.
  • the saw blade portion 1 is a member that directly cuts the metal plate, and is formed in a circular plate shape having a plurality of saw blades to cut the metal plate while rotating.
  • the saw blade portion 1 is illustrated in a circular plate shape, but the shape of the saw blade part 1 is not limited thereto, and may be changed to another shape such as an ellipse under the range in which the metal plate may be cut while rotating.
  • the pad 10 is formed in plural to reduce the noise generated due to friction with the saw blade portion 1 and to prevent scratching of the surface, the edge portion of the pad 10 Rounding 18 may be processed.
  • the corner portion 18 is processed as described above, incomplete contact generated by contact with the saw blade portion 1 can be prevented in advance, thereby preventing the occurrence of frictional heat and abrasion, and improving vibration reduction performance.
  • the phenomenon that only the localized portions of the pad 10 and the saw blade portion 1 are prevented from being worn can extend the service life of the pad 10 and the saw blade portion 1.
  • the pad 10 has a plurality of elastic members 12 for distributing uniform elastic support force to the saw blade portion 1 and a plurality of fixing grooves 14 for fixing one side of the elastic member 12 is formed Can be.
  • the elastic member 12 is formed of a coil spring to absorb the elastic energy to act as a dust.
  • the pad 10 in surface contact with the saw blade portion 1 is formed at each corner of the pad 10 so as to have a uniform elastic support force, and the vibration generated by the contact of the saw blade portion 1 It is reduced by the restoring force. It is also possible to reduce the vibration by using the reaction force of the magnet, not the coil spring, which will be described in detail later.
  • the fixing groove 14 is formed in a size and shape corresponding to one side of the elastic member 12 on one surface, in detail, at each corner of the pad 10. Accordingly, one side of the elastic member 12 may be fixed to the fixing groove 14 by interference fit.
  • the number of the fixing grooves 14 is preferably formed to correspond to the number of the elastic member 12.
  • the pad fixing portion 20 of the present invention is a fan-shaped plate shape that becomes wider in the outer circumferential direction at one point in contact with the center of the saw blade portion 1 adjacent to the center portion of the saw blade (1) And a portion adjacent to the outer circumference is bent at a right angle along the outer circumference.
  • the edge portion of the pad fixing portion 20 may be chamfered to prevent the specific portion of the pad fixing portion 20 from being worn.
  • the pad fixing portion 20 since the pad fixing portion 20 is formed in a fan-shaped plate shape, the area becomes wider toward the outer circumferential direction, so that the vibration wave proceeds in the circumferential direction when the metal plate is cut using the saw blade portion 1. Due to this, the inner side of the saw blade portion 1 can be prevented from being worn before other portions. In addition, it is possible to reduce the squeal noise due to the low point contact or frictional area.
  • one surface of the pad fixing part 20 includes a plurality of receiving grooves 22 accommodating the elastic member 12 in a plurality of columns and rows in the circumferential direction and the radial direction of the dustproof pad 100.
  • the receiving grooves 22 are formed in two rows and four columns, but are not limited thereto.
  • the receiving groove 22 may have a size smaller than that of the pad 10, and the number of the receiving grooves 22 may correspond to the number of the pads 10.
  • the receiving groove 22 is formed to be spaced apart at regular intervals to facilitate the release of frictional heat generated by friction with the pad 10 due to the movement of the saw blade portion 1 when cutting the metal plate.
  • the anti-vibration pad 100 of the present invention may include a fastening member 30 for fastening the plurality of pads 10 to the pad fixing part 20, respectively.
  • fastening member 30 is fastened to the through hole 16 formed in the center of the pad 10, the other side is fastened to the fastening groove 24 formed in the pad fixing portion 20, where, fastening
  • the member 30 is formed to be smaller than the circumference of the through hole 16 so as to penetrate the through hole 16, and is formed to correspond to the shape and size of the fastening groove so as to be fit into the fastening groove 42.
  • the bolting operation may be further performed for tight coupling with the fastening member 30.
  • FIG. 7 is a view showing an operating state of the anti-vibration pad of the present invention.
  • FIG. 8 is a view showing the cutting speed compared to the gas cutting in the prior art when applied to the ultra-thick metal plate having a strength 400MPa, width 1200mm and thickness 200mm with a dustproof pad according to the present invention.
  • the dustproof pad 100 according to the present invention will be described in more detail with reference to this.
  • the cutting speed is only about 150mm / min, but the dustproof pad 100 according to the present invention is provided If the saw blade is used, the cutting speed is about 350 mm / min, which is 2.3 times faster than the case of using the gas cutting.
  • the anti-vibration pad 100 of the present invention since the cutting speed of the saw blade portion can be increased, the work efficiency is improved.
  • FIG. 9 is a view showing a front view of a circular saw according to an embodiment of the present invention.
  • FIG. 10 is a view showing in more detail the positional relationship of the components constituting the circular saw according to an embodiment of the present invention.
  • Figure 11 shows a perspective view of a circular saw according to an embodiment of the present invention.
  • the circular saw 200 is a circular saw blade 210, a first inner dustproof pad 220a, a first outer side that rotates along a first plane
  • the dustproof pad 230a includes a second inner dustproof pad 220b and a second outer dustproof pad 230b.
  • the pad fixing parts 222a, 222b, 232a, and 232b may be further included to install the inner and outer dust pads 220a, 220b, 230a, and 230b.
  • the dustproof pads shown in FIGS. 3 to 7 may be applied to the inner dustproof pad and the outer dustproof pad.
  • the first and second inner dustproof pads 220a and 220b and the first and second outer dustproof pads 230a and 230b have a mutually symmetrical structure.
  • the first and second inner dustproof pads 220a and 220b are positioned on one side.
  • the inner dustproof pad 220a and the first outer dustproof pad 230a will be described below.
  • the first inner dustproof pad 220a is parallel to the circular saw blade 210 at a first distance d1 from the rotation axis in a first direction D1 away from the rotation axis of the circular saw blade 210. To suppress the vibration of the circular saw blade 210 in a laid state.
  • the first outer dustproof pad 230a is a circular saw blade in a state in which it is placed in parallel with the circular saw blade 210 at a second distance d2 from the rotation axis in a first direction D1 away from the rotation axis of the circular saw blade 210. The vibration of 210 is suppressed.
  • the first inner dustproof pad 220a is installed closest to the inner circumference of the circular saw blade 210, and the first outer dustproof pad 230a is the circular saw blade 210. It is installed closest to the outer periphery of, the first outer dustproof pad (230a) is installed spaced apart a predetermined interval (di) in the first direction (D1) from the first inner dustproof pad (220a).
  • the predetermined interval di between the first outer dustproof pad 220a and the first inner dustproof pad 230a is used as a space for forming a plurality of holes 212, as described below.
  • the first inner dustproof pad 220a and the first outer dustproof pad 230a are each formed in a trapezoidal shape bent along the circumference of the circular saw blade 210.
  • first inner dustproof pad 220a and the first outer dustproof pad 230a increase in width in the first plane direction as they move away from the rotational axis, and the first plane of the first outer dustproof pad 230a.
  • the width in the direction is greater than the width in the first planar direction of the first inner dustproof pad 220a, so that the first inner dustproof pad 220a and the first outer dustproof pad 230a are circular saw blades 210. It is placed in the virtual fan constituting the).
  • the first inner dustproof pad 220a is placed inside the virtual fan shape constituting the circular saw blade, and the first outer dustproof pad 230a is placed outside. At this time, it is preferable that the magnitude
  • the circle formed by the bent surface of the bent trapezoidal first inner dustproof pad 220a may be concentric with the circular saw blade 210, and the bent trapezoidal first outer pad 230a may be bent.
  • the surface may also be concentric with the circular saw blade 210, and as a result, the circle formed by the bent surface of the first inner dustproof pad and the circle formed by the bent surface of the first outer dustproof pad correspond to concentric circles.
  • the size of the central angle of the fan shape formed by the bent surface of the first inner dustproof pad and the rotating shaft corresponds to the size of the central angle of the fan shape formed by the bent surface of the first outer dustproof pad and the rotating shaft.
  • the second inner dustproof pad and the second outer dustproof pad positioned on the other side of the first inner dustproof pad and the first outer dustproof pad will be described below.
  • the second inner dustproof pad 220b is disposed in parallel with the circular saw blade 210 at the first distance d1 in the second direction D2 away from the rotation axis of the circular saw blade 210. Suppresses vibration.
  • the second outer dustproof pad 230b suppresses vibration of the circular saw blade 210 in a state in which the second outer dustproof pad 230b is disposed parallel to the circular saw blade 210 at the second distance d2 in the second direction D2.
  • the second inner and outer dustproof pads 220b and 230b form a symmetrical structure with the first inner and outer dustproof pads 220a and 230a, the first inner and outer dustproof pads 220a and the second inner side from the rotating shaft.
  • the distance at which the dustproof pad 220b is formed is the same as the first distance d1
  • the distance at which the first outer dustproof pad 230a and the second outer dustproof pad 230b are formed from the rotation axis is also the second distance d2.
  • the second direction D2 in which the second inner and outer dustproof pads 220b and 230b are formed is the first direction D1 in which the first inner and outer dustproof pads 220a and 230a are formed. It is preferred to be in the opposite direction to.
  • the first and second inner dustproof pads (220a, 220b) can suppress the vibration occurring along the radial direction of the circular saw blade
  • the first and second outer dustproof pads (230a, 230b) can suppress the vibration generated along the circumferential direction of the circular saw blade.
  • FIGS. 12 to 14 a mechanism in which vibration generated in a circular saw blade is suppressed through the inner dustproof pads 220a and 220b and the outer dustproof pads 230a and 230b according to an embodiment of the present invention. Look in detail.
  • FIG. 12 is a diagram illustrating vibration waves generated along the circumferential direction of the circular saw blade as vibration waves generated when the circular saw blade is rotated.
  • FIG. 13 is a diagram illustrating vibration waves generated along the radial direction of the circular saw blade as vibration waves generated when the circular saw blade is rotated.
  • FIG 14 is a figure which shows typically the relationship with the to-be-cut material 40 and another component when the circular saw blade 110 operates.
  • the periodic contact between the cutting material 140 and the circular saw blade 210 and the vibration of the rotating shaft system including the bearing 130 may cause the circular saw blade 210 to vibrate in the axial direction. Do it.
  • the inner dustproof pads 220a and 220b and the outer dustproof pads 230a and 230b are provided.
  • the inner dustproof pads 120a and 120b can simultaneously suppress vibration waves generated along the circumferential direction as shown in FIG. 12 and vibration waves generated along the radial direction as shown in FIG. 13. And outer side dust pads 130a and 130b are installed.
  • the anti-vibration pad When the anti-vibration pad is installed at such a cut line, the axial vibration cannot be reduced, so that the inner dustproof pads 120a and 120b and the outer dustproof pads 130a and 130b according to the embodiment of the present invention have a rotation axis of 35. It will be installed at an angle of ⁇ 40 °.
  • the cutting material 140 passes below the lower limit (L2), and the upper limit (L1) because the interference with other components constituting the circular saw occurs, the inner side
  • the anti-vibration pads 220a and 220b and the external antivibration pads 230a and 230b are preferably installed between the upper limit line L1 and the lower limit line L2.
  • the internal anti-vibration pads 220a and 220b and the external antivibration pads 230a and 230b according to an embodiment of the present invention are mutually different. It is installed spaced apart a predetermined interval (di).
  • the inner dustproof pad and the outer dustproof pad may be installed to avoid 2/5 to 4/5 of the distance between the inner diameter and the outer diameter of the circular saw blade.
  • the circular saw 200 since the circular saw 200 has a number of natural frequencies that increase the amount of vibration at its own specific frequency, it is necessary to set the rotational speed to avoid such a range of natural frequencies.
  • the arrangement of the dustproof pads 220a, 220b, 230a, and 230b may increase the natural frequency of the circular saw 200, surface deterioration or thermal deformation due to frictional heat between the saw blade 210 and the workpiece 140. It is likely to accompany.
  • the circular saw blade 210 according to an embodiment of the present invention, as shown in Figures 9 to 11, to form a porous shape, that is, a plurality of holes 212 to ensure heat dissipation performance.
  • FIG. 15 is a view showing in detail the porous shape formed on the circular saw blade according to an embodiment of the present invention, as shown in Figure 15, for the porous shape, the circular saw blade 210, a plurality of holes ( 212) can be formed, and holes having various diameters can be arranged to minimize the voids.
  • the cutting bur which protrudes finely by hole processing has a point contact with a circular saw and high frequency noise. Since it is generated, as shown in Figure 15, it may be a chamfer 114.
  • Figure 16 shows the increase in the natural frequency according to the application of the circular saw according to an embodiment of the present invention compared with the prior art.
  • the natural frequency increases with the installation of the anti-vibration pads 220a, 220b, 230a, and 230b, and even when the porous shape 212 is designed, the natural frequency does not drop significantly. have.
  • the first flexible strain natural frequency increases by about 17% with the installation of the anti-vibration pad, and even when designing the porous shape for heat generation, the natural frequency has only a change in the natural frequency of about 2%.
  • the maximum operating speed can be increased by about 15% from the antivibration pads 220a, 220b, 230a, 230b and the porous shape 212 design.
  • Figure 17 shows the vibration amount according to the application of the circular saw according to an embodiment of the present invention in comparison with the prior art, compared with the case where the dustproof pads 220a, 220b, 230a, 230b is not installed at the maximum operating speed
  • the vibration amount is about 70% reduced.
  • the cutting speed can be increased.
  • the debris of the soft material during the low-speed rotation can be pressed to the saw blade end to reduce the blade life and to remove the cause of the cut surface quality.
  • FIG. 18 is a perspective view of a metal plate cutting device according to an embodiment of the present invention
  • Figure 19 is a schematic cross-sectional view of the metal plate cutting device shown in FIG.
  • the metal plate cutting apparatus 300 may include a support 310, a frame 340, and a cut 360.
  • the rotary shaft 365 of the saw blade portion 361 of the cut portion 360 may be above the metal plate 400 placed on the upper surface of the base 310.
  • the support part 310 is a member supporting the metal plate 400 on an upper surface thereof, and is a portion that becomes a base of the metal plate cutting device 300.
  • the support part 310 may include a flat body part 311 and a support part 312 installed on the main body part 311 to support the metal plate 400 to the main body part 311.
  • the support part 312 is a member for preventing a friction flaw on the surface of the metal plate 400 during the movement of the metal plate 400, for example, may be implemented as a plurality of ball casters.
  • the ball caster is a ball 313 is freely rotatable in the housing 314.
  • the ball caster is provided with a spring between the ball 313 and the housing 314, even if the surface of the metal plate 400 is uneven, it is point contact with each point of the metal plate 400, The metal plate 400 may be stably supported.
  • the metal plate 400 may be loaded on the support portion 310 through the loading unit 320, for example, a hydraulic device may be used to drive the loading unit 320.
  • the loading unit 320 may perform a function of unloading the metal plate 400 from the metal plate cutting device 300 after the metal plate 400 is cut.
  • a discharge process of the metal plate 400 may be facilitated by providing a roller or the like on the exit side of the support portion 310 in which the metal plate 400 is discharged.
  • the support part 310 may be provided with a fixing part 330 for pressing the metal plate 400 in the direction of the support part 310 to fix the position of the metal plate 400.
  • the fixing part 330 may be lowered from the upper portion of the metal plate 400 to press the upper surface of the metal plate 400. Accordingly, the fixing part 330 may prevent the metal plate 400 from flowing during the cutting process.
  • the fixing part 330 may include a support 331, a hydraulic part 332, a clamping shaft 333, and a clamping plate 334.
  • the fixing part 330 extends the clamping shaft 333 by operating the hydraulic part 332 connected to the support 331, and thus the clamping plate 334 is formed on the upper surface of the metal plate 400. In contact with each other, the metal plate 400 is pressed. Therefore, the metal plate 400 may be fixed.
  • the frame part 340 is a member which is supported on the upper surface of the support part 310 in which the metal plate 400 is located to guide and support the movement of the cutting part 360.
  • the frame part 340 may be supported on an upper surface of the main body part 311 of the support part 310.
  • the frame portion 340 is bent from the first frame portion 341 and the first frame portion 341 connected to the support portion 310 extends in parallel with the upper surface of the support portion 310 It may include a second frame portion 342.
  • the first frame part 341 may be provided in a pair, and the second frame part 342 may connect a pair of first frame parts 341. Therefore, the frame part 340 may have a shape such as " ⁇ " as a whole.
  • the first frame part 341 supports the second frame part 342 to the support part 310, and the second frame part 342 is a rail or guide to which the cutting part 360 is moved.
  • the second frame portion 342 may include a screw portion 343 having a thread formed on the outer surface.
  • the first driving part 350 for rotating the screw part 343 may be installed adjacent to the second frame part 342.
  • the first driving unit 350 may be a rotating motor.
  • the cutting part 360 is a member that cuts the metal plate 400 while moving in parallel with the upper surface of the support part 310 along the frame part 340.
  • the cut portion 360 may move along the second frame portion 342. Therefore, the cut portion 360 may move corresponding to the portion to be cut of the metal plate 400. Therefore, the cutting part 360 may cut the metal plate 400 in a direction parallel to the second frame part 342.
  • the member for moving the cutting unit 360 may be the first driving unit 350.
  • the first driving part 350 may move the cutting part 360 screwed to the screw part 343 by rotating the screw part 343 of the second frame part 342.
  • the present invention is not limited thereto, and the first driving part 350 is implemented as a hydraulic cylinder to directly move the cutting part 360, and the second frame part 342 simply guides the cutting part 360. It is also possible to limit to roles.
  • the first driving unit 350 may drive a separate transfer rail, for example, a split transfer rail such as a conveyor belt, and in this case, the cutting unit 360 connected to the transfer rail may be moved.
  • a separate transfer rail for example, a split transfer rail such as a conveyor belt
  • the cutting unit 360 connected to the transfer rail may be moved.
  • the configuration in which the first driving unit 350 drives the transfer rail to move the cutting unit 360 may be useful when the length of the metal plate 400 is relatively long.
  • the cutting part 360 includes a saw blade portion 361 that directly cuts the metal plate 400, and a second drive portion 367 that rotates the saw blade portion 361, and the second drive portion 367 includes: Through the rotary shaft 365 coupled to the saw blade portion 361, it is possible to transmit a rotational force to the saw blade portion 361. Accordingly, the saw blade portion 361 may rotate to cut the metal plate 400.
  • the second driving unit 367 may be a rotating motor.
  • the saw blade portion 361 may include a circular saw blade 362 having a plurality of teeth 366, and a pad portion 363 attached to the circular saw blade 362.
  • the circular saw blade 362 may include a heat dissipation hole 364 capable of dissipating heat generated while cutting the metal plate 400. Therefore, the heat dissipation hole 364 may reduce the stress applied to the saw blade portion 361.
  • the pad part 363 may be attached to the saw blade portion 361 to prevent the saw blade portion 361 from flowing from side to side when the saw blade portion 361 cuts the metal plate 400. .
  • the cutting portion 360 is horizontally moved along the second frame portion 342, so that the saw blade portion 361 is rotated to cut the metal plate 400, the cut portion 360 is the long metal plate 400 can also be easily cut.
  • rotation shaft 365 of the saw blade portion 361 may be located above the metal plate 400, that is, outside the surface of the metal plate 400 opposite to the support part 310.
  • the saw blade portion 361 may be rotated clockwise or counterclockwise.
  • FIGS. 20 and 21 are schematic cross-sectional views for explaining the saw blade portion shown in Figure 19,
  • Figure 22 is a graph for explaining the change in the clamping force according to the vibration amount of the circular saw blade.
  • the saw blade portion 361 may include a circular saw blade 362 having a plurality of teeth 366, and a pad portion 363 attached to the circular saw blade 362.
  • the pad portion 363 is attached to the circular saw blade 362 so that when the circular saw blade 362 cuts the metal plate 400, the circular saw blade 362 is applied to the surface of the circular saw blade 362. Vibration in the vertical direction can be prevented.
  • the pad part 363 may guide movement of the anti-vibration pad 363a, the first and second magnets 363b and 363c and the second magnet 363c to apply a clamping force to the anti-vibration pad 363a. It may include a guide member 363d, an adjusting screw 363e for adjusting the distance between the first and second magnets 363b, 363c, and a cover case 363f for coupling with the adjusting screw 363e. .
  • the anti-vibration pad 363a may be installed to be in close contact with the surface of the circular saw blade 362 to suppress the vibration of the circular saw blade 362.
  • the first magnet 363b is attached to a surface parallel to the circular saw blade 362 of the anti-vibration pad 363a.
  • the first magnet 363b and the second magnet 363c are disposed to face the same polarity.
  • a repulsive force may be generated between the first magnet 363b and the second magnet 363c, and the repulsive force may be a clamping force applied to the anti-vibration pad 363a.
  • both the first magnet 363b and the second magnet 363c have a ring shape, and the center of the ring is coupled to the guide member 363d.
  • the guide member 363d may be a guide pin and is fixed to the anti-vibration pad 363a.
  • the guide member 363d may be perpendicular to the surface of the circular saw blade 362. Accordingly, the guide member 363d may guide the second magnet 363c to move in a direction perpendicular to the surface of the circular saw blade 362.
  • the adjusting screw 363e may be fixed to the second magnet 363c to adjust the distance between the first magnet 363b and the second magnet 363c.
  • the cover case 363f has a screw hole that can be engaged with the adjustment screw 363e. Accordingly, the adjusting screw 363e is engaged with the cover case 363f, but rotates to move the second magnet 363c so as to be disposed between the first magnet 363b and the second magnet 363c. You can adjust the distance.
  • the pad part 363 may further include a cutting oil supply line 363g for supplying cutting oil for suppressing friction between the anti-vibration pad 363a and the circular saw blade.
  • the cutting oil supply line 363g may be installed inside the anti-vibration pad 363a.
  • the saw blade portion 361 including the circular saw blade 362 and the pad portion 363 has the anti-vibration pad due to the repulsive force generated between the first magnet 363b and the second magnet 363c.
  • a clamping force can be applied to 363a.
  • the clamping force may be adjusted by adjusting a distance between the first magnet 363b and the second magnet 363c.
  • k is the Coulomb constant
  • m A and m B are the intensities of the two magnetic poles
  • r is the distance between the two magnets.
  • the clamping force increases rapidly as the distance between the first magnet 363b and the second magnet 363c decreases. That is, as shown in FIG. 4, when the adjusting magnet 363e is rotated to move the second magnet 363c in the direction of the first magnet 363b, the clamping force is increased.
  • the anti-vibration pad 363a is in close contact with the surface of the circular saw blade 362, and the anti-vibration pad 363a is in a direction perpendicular to the axis of rotation of the circular saw blade 362. It suppresses vibration.
  • the clamping force can be changed by the vibration of the circular saw blade 362.
  • the vibration amount of the circular saw blade 362 increases, the distance between the first magnet 363b and the second magnet 363c decreases. Therefore, as shown in FIG. 22, when the vibration amount of the circular saw blade 162 increases, the clamping force may increase. That is, it can be seen that the clamping force R2 generated in the saw blade portion 361 of the metal plate cutting device of the present invention is larger than the clamping force R1 required in the metal plate cutting device.
  • FIGS. 23 to 27 In Figs. 23 to 25, the same components as those shown in Figs. 18 to 22 are given the same reference numerals, and detailed description thereof will be omitted. In addition, in FIGS. 20 to 22, different points from those of FIGS. 18 to 22 will be described in order to avoid overlapping descriptions.
  • FIG. 23 is a schematic cross-sectional view for explaining a saw blade portion of a metal plate cutting device according to another embodiment of the present invention.
  • FIG. 24 is a schematic plan view for explaining the saw blade portion shown in FIG. 23, and
  • FIG. 25 is A of FIG. 24. An enlarged view of the area.
  • the saw blade portion 361 may include a circular saw blade 362 having a plurality of teeth 366, and a pad portion 363 attached to the circular saw blade 362.
  • the pad part 363 may guide movement of the anti-vibration pad 363a, the first and second magnets 363b and 363c and the second magnet 363c to apply a clamping force to the anti-vibration pad 363a.
  • Adjustment member 363e for adjusting the distance between the guide member 363d, the first and second magnets 363b and 363c, and third and fourth magnets 363i for preventing the flow of the anti-vibration pad 363a.
  • the anti-vibration pad cover 363h may cover the first magnet 363b and the second magnet 363c. Accordingly, the anti-vibration pad cover 363h may have foreign substances that may occur during the saw blade portion 361 rotating to cut the metal plate.
  • the anti-vibration pad 363a and the first and second magnets 363b and 363c. ) Can be contaminated.
  • the third magnet 363i is disposed on a side surface of the anti-vibration pad 363a, that is, a surface perpendicular to the circular saw blade 362, and the fourth magnet 363j includes the anti-vibration pad cover ( 363h) on the inner side.
  • the third and fourth magnets 363i and 363j have the same principle as the first and second magnets 363b and 363c to prevent the anti-vibration pad 363a from flowing on the surface of the circular saw blade 362. It can prevent.
  • 26 and 27 are schematic cross-sectional views for explaining the saw blade portion of the metal plate cutting apparatus according to another embodiment of the present invention.
  • the saw blade portion 361 may include a circular saw blade 362 having a plurality of teeth 366, and a pad portion 363 attached to the circular saw blade 362.
  • the pad part 363 may guide movement of the anti-vibration pad 363a, the first and second magnets 363b and 363c and the second magnet 363c to apply a clamping force to the anti-vibration pad 363a. It may include a guide member, an adjusting screw 363e for adjusting the distance between the first and second magnets 363b and 363c, and a cover case 363f for engaging with the adjusting screw 363e.
  • the diameter of the inner circumference of the first magnet 363b may be smaller than the diameter of the inner circumference of the second magnet 363c.
  • the diameter of the outer circumference of the first magnet 363b may be larger than the diameter of the outer circumference of the second magnet 363c.
  • the guide member is fixed to the inner and outer peripheral surfaces of the first and second guide rings 363k and 363l fixedly installed on the inner and outer circumferential surfaces of the first magnet 363b, and a third fixed to the inner and outer circumferential surfaces of the second magnet 363c.
  • fourth guide rings 363m and 363n The first to fourth guide rings 363k, 363l, 363m, and 363n may be perpendicular to the surface of the circular saw blade 362.
  • the diameter of the first guide ring 363k may be smaller than the diameter of the third guide ring 363m.
  • the diameter of the second guide ring 363l may be larger than the diameter of the fourth guide ring 363n. Accordingly, the second magnet 363c may move in the vertical direction of the circular saw blade 362 by the shape of the first to fourth guide rings 363k, 363l, 363m, and 363n.
  • the saw blade portion 361 may be the bending deformation of the circular saw blade 362 in the process of cutting the metal plate.
  • the repulsive force by the first and second magnets 363b and 363c may restore the circular saw blade 362 to its original state.
  • FIGS. 28 and 29 show that the pad portion 363 shown in FIGS. 20 to 22 is applied to the anti-vibration pads of FIGS. 3 and 4.
  • the magnets 363b and 363c are applied in different ways to FIGS. 28 and 29. The figure is shown.
  • the first and second magnets 363b and 363c of FIG. 22 are applied to the pad 10 (see FIG. 3A) of FIG. 3.
  • a plurality of pad parts 563 are disposed in the pad fixing part 560, and the pad parts 563 apply a clamping force to the anti-vibration pad 563a and the anti-vibration pad 563a.
  • Adjustment screw for adjusting the distance between the first and second magnets 563b and 563c, the guide member 563d for guiding the movement of the second magnets 563c, and the first and second magnets 563b and 563c. is disposed.
  • the anti-vibration pad includes a plurality of pad parts 563 and a pad fixing part 560 to which the pad part 563 is fixed.
  • the pad fixing part 560 is the FIGS. 9 to 14. It may have the same shape as the inner dustproof pad or the outer dustproof pad.
  • FIG. 29 illustrates another embodiment of FIG. 28, which is the same in that a plurality of pads 563 are disposed in the pad fixing part 560, but each pad is provided at each corner of the pad part 563. The difference is that the first and second magnets 563b and 563c and the guide member 563d are disposed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
PCT/KR2014/010357 2013-11-01 2014-10-31 방진패드 및 이를 포함하는 원형톱, 금속판 절단 장치 WO2015065099A1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201480060258.9A CN105813788B (zh) 2013-11-01 2014-10-31 抗振衬垫和包括该抗振衬垫的圆锯以及切割金属板的装置
JP2016527238A JP6283744B2 (ja) 2013-11-01 2014-10-31 防振パッド及びこれを含む丸鋸、金属板切断装置
PH12016500787A PH12016500787A1 (en) 2013-11-01 2016-04-27 Anti-vibration pad and circular saw comprising same, and apparatus for cutting metal plate

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR1020130132462A KR101485708B1 (ko) 2013-11-01 2013-11-01 금속판 절단장치
KR10-2013-0132463 2013-11-01
KR1020130132463A KR101485709B1 (ko) 2013-11-01 2013-11-01 원형톱
KR10-2013-0132462 2013-11-01
KR10-2013-0135311 2013-11-08
KR1020130135311A KR101530779B1 (ko) 2013-11-08 2013-11-08 방진패드

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WO2015065099A1 true WO2015065099A1 (ko) 2015-05-07

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CN117798424A (zh) * 2023-12-28 2024-04-02 江门市创盈新金属制品有限公司 一种金属削切工艺

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JP6283744B2 (ja) 2018-02-21
CN105813788A (zh) 2016-07-27
PH12016500787A1 (en) 2016-06-13
CN105813788B (zh) 2018-01-12
JP2016539012A (ja) 2016-12-15

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