KR20110073413A - Spindle for cutting edge of cutter - Google Patents

Spindle for cutting edge of cutter Download PDF

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Publication number
KR20110073413A
KR20110073413A KR1020110054427A KR20110054427A KR20110073413A KR 20110073413 A KR20110073413 A KR 20110073413A KR 1020110054427 A KR1020110054427 A KR 1020110054427A KR 20110054427 A KR20110054427 A KR 20110054427A KR 20110073413 A KR20110073413 A KR 20110073413A
Authority
KR
South Korea
Prior art keywords
spindle
cutting blade
head
bolt
cutting
Prior art date
Application number
KR1020110054427A
Other languages
Korean (ko)
Inventor
김대식
유병호
Original Assignee
김대식
유병호
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
Application filed by 김대식, 유병호 filed Critical 김대식
Priority to KR1020110054427A priority Critical patent/KR20110073413A/en
Publication of KR20110073413A publication Critical patent/KR20110073413A/en

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Classifications

    • 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
    • B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling Processes (AREA)

Abstract

The present invention is further formed in the cutting groove in the head of the spindle for applying the rotational power of the drive motor to the cutting blade, the head is divided by the cutting groove and the tapered portion formed inside the spindle taper toward the inside As it is formed in a true canyon shape, when the bolt is tightened while the head of the spindle is located in the circular hole of the cutting blade, the head divided by the fastening bolt is gradually enlarged and closely adhered to the hole of the cutting blade. It is possible to provide the cutting blade spindle of the cutting machine that can make precise cutting work and minimize the eccentric wear of the cutting blade by preventing the cutting blade from shaking, moving or eccentrically rotating at high speed. .
To this end, the present invention, in the spindle consisting of a head coupled to the drive motor of the cutter and extending to one side of the flange and the bolt formed in the upper outer surface, the head 11 of the spindle 10 In the vertically cut in the longitudinal direction of the head portion 11 and the cutting groove 12 is further formed to correspond to both sides of the head portion 11, respectively, the bolt fastening portion formed in the spindle 10 13 is formed in a tapered canyon shape toward the inner side of the spindle 10, the head of the spindle 10 in the process of fastening the bolt to the bolt fastening portion 13 of the canyon type 11) is expanded and is configured to be in close contact with the hole 21 of the cutting blade (20).

Description

Spindle for cutting edge of cutter

The present invention relates to a cutting blade spindle of a cutter, and more particularly, to form a cutting groove in the head of the spindle rotated by the power of the drive motor of the cutter to rotate the cutting blade and inward bolt fastening portion in the spindle The cutting blade spindle of the cutter, which is formed by a fork, so that the head is expanded by the incision groove of the head when the spindle and the cutting blade are fastened by the bolts, and closely adhered to the holes of the cutting blade so that the cutting blade and the spindle can be firmly fixed. It is about.

In general, the cutter is a device for cutting a cutting object while rotating the cutting blade at high speed, as shown in Figure 1 is applied to the driving motor 1 and the rotational power of the drive motor 1 to rotate at high speed Composed of a cutting blade (2) and a handle (3) for raising and lowering the cutting blade (2), grasp the handle (3) and press it downwards, the cutting blade is rotated at high speed while the cutting blade (2) is lowered By (2), cutting of a pipe, a steel pipe, or wood is performed.

In addition, the cutting blade (2) is coupled by the drive motor 1 and the spindle (4), as shown in Figure 2, the coupling structure of the conventional cutting blade (2), there is a bolt connection portion (4a) Is formed and the first washer portion 5 and the first washer portion 5 seated on the upper end of the fixed flange 4b of the spindle 4 and the fixed flange (4b) formed on the upper outer surface The cutting blade 2 seated on the cutting blade 2 and the second washer part 6 seated on the cutting blade 2 and the second washer part 6 are in close contact with each other and fastened to the bolt fastening part 4a of the spindle 4. Consisting of bolts 7.

Therefore, the cutting blade 2 is fixed to the spindle 4 by the bolts 7 so that the cutting blade 2 is rotated as the spindle 4 is rotated so that the cutting operation is performed.

However, the various cutting blades 2 currently used have an angular head of the spindle 4 since the holes 2a for fitting to the spindle 4 are formed in a circular shape as shown in FIG. 2. When the circular hole 2a of the cutting blade 2 is fitted to the portion 4b, there is a problem that a flow space is generated.

Since the flow space reduces the fastening property between the spindle 4 and the cutting blade 2, a phenomenon that the cutting blade 2 vibrates severely during rotation of the cutting blade 2 occurs, resulting in precise cutting work. There is a problem.

In addition, the spindle 4 is rotated at the high speed by the flow space formed by the circular hole 2a of the cutting blade 2 and the angled head 4b of the spindle 4. By eccentric rotation instead of centrifugal rotation, the problem of eccentric abrasion of the cutting blade is generated along with the difficulty of precise cutting operation.

Therefore, there is an urgent need for a structure that can firmly fasten the cutting blade to the spindle.

As a prior art, a mounting structure of a cutting blade for a cutter, which is disclosed in Korean Patent Publication No. 10-2009-0129163, has been devised, which presses a rotating shaft on which a power of the cutter is output and a boss is formed, and a cutting blade fitted to the rotating shaft. In the mounting structure of the cutting blade for a cutter comprising a washer and a fixing nut to rotate in conjunction with, the multi-stage bend type coupling hole formed in the cutting blade, and the outer side is multi-stage bent to fit in the coupling hole. It is formed of an adapter formed of an insertion hole formed so that the boss portion of the rotating shaft is fitted to the central portion.

Therefore, by using the adapter of the multi-stage bending type to be fitted into the cross-shaped coupling hole, not only the slip phenomenon may be reduced when the cutting blade is rotated, but also other types of rotating shafts or adapters may be used, thereby reducing the use and maintenance of the cutter. It is to facilitate.

However, the prior art has a problem in that the price of the cutter by the adapter is increased by using a separate adapter, which increases the cost incurred when the consumer purchases the cutter.

In addition, there is a problem in that the cutting blade is coupled to the spindle by coupling the cutting blade (cutting blade) to the rotating shaft (spindle) using an adapter.

The present invention has been made in order to solve the problem of the conventional cutting blade and the coupling structure of the cutter, the cutting groove formed on the head of the spindle correspondingly more and the bolt fastening portion formed in the spindle toward the inside of the spindle It is an object of the present invention to provide a cutting blade spindle of a cutter in which the head is extended by a bolt fastened and formed to be narrow so that the head of the spindle is completely in contact with the hole of the cutting blade so that a rigid fastening is achieved.

The cutting blade spindle of the cutter of the present invention as a means for achieving the above object, in the spindle consisting of a head coupled to the drive motor of the cutter and extends to one side of the flange and the bolt portion formed therein, the upper outer surface, The head of the spindle is further formed with an incision groove formed vertically cut in the longitudinal direction of the head, the bolt engaging portion formed inside the spindle is formed in a tapered canyon toward the inner side of the spindle. .

The present invention is further formed in the cutting groove in the head of the spindle for applying the rotational power of the drive motor to the cutting blade, the head is divided by the cutting groove and the tapered portion formed inside the spindle taper toward the inside As it is formed in a true canyon shape, when the bolt is tightened while the head of the spindle is located in the circular hole of the cutting blade, the head divided by the fastening bolt is gradually enlarged and closely adhered to the hole of the cutting blade. It is possible to secure the fastening of the cutting blade to prevent the cutting blade from shaking, moving or eccentrically rotating at high speed, so that the cutting work can be done precisely and the eccentric wear of the cutting blade can be minimized.

1 is a configuration diagram showing an example of a conventional cutter.
Figure 2 is an exploded perspective view showing a coupling structure of the cutting blade and the spindle of the conventional cutter.
Figure 3 is a perspective view showing a cutting blade spindle of the present inventors cutter.
Figure 4 is a partial cutaway configuration showing the main portion of the cutting blade spindle of the present invention cutter.
Figure 5 is an exploded perspective view showing a coupling structure of the cutting blade spindle of the present invention cutter.
Figure 6 is a block diagram showing a coupling state of the cutting blade spindle of the present invention cutter.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

2 to 6, the cutting blade spindle of the cutter of the present invention is coupled to the drive motor of the cutter, the spindle is composed of a flange on the upper outer surface and a head portion formed with a bolted portion therein and extending to one side of the flange; Regarding, the head portion 11 of the spindle 10 is formed to be cut vertically in the longitudinal direction of the head portion 11 and the incision groove 12 is further formed to correspond to both sides of the head portion 11, respectively The bolt fastening portion 13 formed inside the spindle 10 is formed in a tapered canyon shape toward the inner side of the spindle 10.

Accordingly, the head 11 of the spindle 10 is expanded in the process of the bolt is fastened to the bolt fastening portion 13 of the cantilever type to be in close contact with the hole 21 of the cutting blade 20 to cut the blade ( 20) and the fastening property of the spindle 10 is greatly improved to enable a solid fastening.

As shown, the incision groove 12 is formed in two to correspond to each other to the head portion 11 of the spindle 10, but is not limited to this, of course, it is possible to expand the head portion 11 If formed so as to correspond to each other, the number of the cutting grooves 12 is not limited.

According to the present invention configured as described above, by rotating the cutting blade 20 to the head 11 of the angular shape of the spindle 10 the rotational driving force of the drive motor is transmitted to the cutting blade 20 to the cutting blade 20 The high speed rotation is possible, and the cutting blade 20 and the spindle 10 are fastened to the bolt fastening part 13 formed inside the head 11 of the spindle 10 by the bolt 30. By being done.

In the process of fastening the bolt 30 to the bolt fastening part 13 as described above, the shape of the bolt fastening part 13 becomes a tapered canyon shape toward the inside of the head part 11 of the spindle 10. Since the head 30 divided by the cutting groove 12 is gradually opened as the bolt 30 is fastened to the inner side of the bolt fastening portion 13, the cutting blade 20 is formed. The head 11 is in close contact with the hole 21 of the).

Therefore, the fastening property between the spindle 10 and the cutting blade 20 can be greatly improved, so that even when the cutting blade 20 is rotated at high speed by the fastening of the rigid spindle 10 and the cutting blade 20, the shaking or shaking is performed. The distance is prevented from flow phenomenon, the cutting blade 20 can be centrifugal rotation by the spindle 10 as the axis can be precise cutting work as well as minimizing the eccentric wear of the cutting blade (20).

As described above, the present invention has been described with reference to a preferred embodiment of the present invention as being capable of various modifications, but the present invention is not limited to such an embodiment, and the embodiment is simply applied in combination with the known art. Together with the claims and the detailed description of the present invention it will be seen that the technology that can be used by those skilled in the art that the present invention belongs to be included in the technical scope of the present invention.

10: spindle 11: head
12: incision groove 13: bolted connection
20: cutting blade 21: hole
30: Bolt

Claims (1)

In the spindle is coupled to the drive motor of the cutter and composed of a flange on the upper outer surface and a head portion formed with a bolt fastening portion therein,
The head portion 11 of the spindle 10 is formed to be vertically cut in the longitudinal direction of the head portion 11 and further formed with a cutting groove 12 to correspond to both sides of the head portion 11 so that the head The unit 11 is divided and
The bolt fastening portion 13 formed inside the spindle 10 is formed in a tapered canyon shape toward the inner side of the spindle 10.
In the process of fastening the bolt to the cantilever bolt fastening portion 13 is characterized in that the head 11 of the spindle 10 is expanded to be in close contact with the hole 21 of the cutting blade 20 Cutting blade spindle of the cutter made.
KR1020110054427A 2011-06-07 2011-06-07 Spindle for cutting edge of cutter KR20110073413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110054427A KR20110073413A (en) 2011-06-07 2011-06-07 Spindle for cutting edge of cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110054427A KR20110073413A (en) 2011-06-07 2011-06-07 Spindle for cutting edge of cutter

Publications (1)

Publication Number Publication Date
KR20110073413A true KR20110073413A (en) 2011-06-29

Family

ID=44404101

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110054427A KR20110073413A (en) 2011-06-07 2011-06-07 Spindle for cutting edge of cutter

Country Status (1)

Country Link
KR (1) KR20110073413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106671204A (en) * 2017-03-01 2017-05-17 孔令寿 Wood working sawing and milling all-in-one machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106671204A (en) * 2017-03-01 2017-05-17 孔令寿 Wood working sawing and milling all-in-one machine

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E601 Decision to refuse application