WO1994011143A1 - Support pour fraises creuses - Google Patents

Support pour fraises creuses Download PDF

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Publication number
WO1994011143A1
WO1994011143A1 PCT/JP1993/001545 JP9301545W WO9411143A1 WO 1994011143 A1 WO1994011143 A1 WO 1994011143A1 JP 9301545 W JP9301545 W JP 9301545W WO 9411143 A1 WO9411143 A1 WO 9411143A1
Authority
WO
WIPO (PCT)
Prior art keywords
milling cutter
mounting
tapered
type milling
screw
Prior art date
Application number
PCT/JP1993/001545
Other languages
English (en)
Japanese (ja)
Inventor
Manabu Ide
Original Assignee
Kabushiki Kaisha Aideie
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 Kabushiki Kaisha Aideie filed Critical Kabushiki Kaisha Aideie
Publication of WO1994011143A1 publication Critical patent/WO1994011143A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/26—Securing milling cutters to the driving spindle

Definitions

  • the present invention relates to a shell-type milling cutter mounting member for mounting a shell-type milling cutter having a tapered mounting hole extending downward at the center thereof to a milling bar, and particularly, when mounting, the eccentricity of the milling cutter.
  • a shell-type milling cutter mounting member for mounting a shell-type milling cutter having a tapered mounting hole extending downward at the center thereof to a milling bar, and particularly, when mounting, the eccentricity of the milling cutter.
  • a left-hand screw is screwed into the mounting shaft of the miller bar and the mounting of the shell-type milling cutter, and both are screwed together. And the two are fixed and attached with other bolts, but both are not always satisfactory compared to the integrated type, and US Patent No. 1,977,296, US Patent No. 1 4 7 2 5 6 5 uses a tapered sleeve with a slot, and press-fits it with a screw to mount the power cutter.When removing the cutter, remove the screw.
  • Japanese Patent No. 1,688,409 has just proposed a method of mounting a seal-type milling cutter having a performance close to that of an integrated type.
  • a screw-type milling cutter having a taper-shaped mounting hole which is appropriately larger than the mounting shaft, is loosely fitted to the mounting shaft of the milling bar having the tip formed in the straight step portion.
  • Two semi-annular tapered members are engaged with the head of the screw member between the mounting shaft and the mounting hole, the taber member is press-fitted with the screw member, and the seal-type milling cutter is fixed to the milling cutter. It is. Further, based on this, the taper member can be easily press-fitted and pulled out easily.
  • An L-type milling cutter-mounting screw member is also disclosed by the present inventor in Japanese Utility Model Registration No. 1 189 1228. This is the point proposed in.
  • the taper member used in the method of mounting the seal milling cutter is a half-annular half-split portion in which a protrusion provided on the inner periphery is fitted into a groove in the head of the screw member. Due to this, the tapered member that is divided into two parts may be slightly displaced and press-fitted with the screw member during installation.As a result, the milling cutter is mounted eccentrically, which reduces the cutting accuracy and causes vibration. I was In addition, the press-fit deviation affects the degree of wear, and the two divided taper members hardly wear in the same way, and one of them wears first, and as a result, both of the two parts cannot be used. The durability was not good.
  • the two cheever members are easily separated and fall. Care must be taken so that they do not fall off the screw member. Because of its semi-annular shape, it is difficult to center and its repair by polishing is extremely difficult. Further, even in a storage of the tapered member which is divided into two, either had to problems such have easily lost c
  • the one fitted with the conventional seal-type milling cutter having the straight-shaped mounting holes is the same as the one fitted by the mounting method of Japanese Patent No. 16880409. Comparing the cutting conditions, that is, the current value at the power required for cutting when the same cutting force is set, the conventional product shows 40 amperes, and that of the Japanese Patent No.
  • 16888409 Is between 30 and 40 amperes, confirming that the required cutting power is smaller than that of conventional products.
  • the value of 30 to 40 amps always fluctuates and does not show a constant value as in the conventional product. From the experimental results, it was found that the cause was caused by one side of the taper member or eccentricity of the attached cutter because the taper member was divided into two parts.
  • the present invention has been made in order to solve the above-mentioned conventional problems, and when a shell-type milling cutter having a tapered mounting hole 6 formed at the center of the gripper is mounted on a milling cutter, the roundness is reduced. It is an object of the present invention to provide a seal-type milling cutter mounting member that is accurate, has high rigidity and high mounting strength, and allows for extremely easy replacement of a milling cutter and easy repair. Disclosure of the invention
  • a shell-type milling cutter having a tapered hole slightly larger than the mounting shaft is loosely fitted to the mounting shaft of the miller bar, and is press-fitted into a gap between the mounting shaft and the tapered hole.
  • the cylindrical tapered member is formed with a protruding peripheral portion that is convex in the inner circumferential direction of the thick end portion, and at least a plurality of slots are formed from the end portion on the protruding peripheral portion side to the other end portion. Form a crack.
  • the screw member for press-fitting the tapered member has a groove formed on the head thereof for engaging with the projecting peripheral portion and a hexagonal hole formed on an end surface of the head to form a mounting member.
  • FIG. 1 is an exploded cross-sectional view showing a method for mounting a seal milling cutter of the present invention
  • FIGS. 2 and 3 are perspective views of a tapered member of the present invention
  • FIG. 4 is a seal according to the present invention.
  • FIG. 5 is a cross-sectional view for explaining an attached state of the die-type milling power cutter.
  • FIG. 5 is a cross-sectional view for explaining another mounted state of the shell-type milling power cutter according to the present invention.
  • (1) is a metal cylindrical taber member formed with a tapered outer surface and a straight inner surface, and the inner surface of the thicker end of the tapered member (1).
  • a projecting protrusion (la) is formed in the circumferential direction, and a plurality of slits (lb) are drilled from the end on the side of the protrusion (1a) 'to the other end.
  • another slot (lc) is formed between the slot (lb) and the other end toward the projecting portion (la).
  • the screw member (2) is a screw member having a screw portion (2a) and a cylindrical head (2b), and the side surface of the head (2b) of the screw member (2) has the tapered member.
  • a groove (2c) engaging with the protruding peripheral portion (la) of (1) is formed, and a hexagonal hexagon (2d) is formed on the end face.
  • (3) is a fly-saver having a mounting shaft (3a) having a tip formed in a straight step portion and a detent key (3c.) Protruding from the step portion, wherein the mounting shaft (3a) is provided.
  • a screw 6 (3b) is drilled in the hole.
  • (4) is a shell-type milling cutter with a tapered mounting hole (4a) extending downward at the center and a key groove (4b) for preventing rotation at the upper end.
  • FIG. 5 is a drawing showing another mounting state of the present invention.
  • the cross-sectional shape of the projecting peripheral portion (la) of the tapered member (1) is trapezoidal, and the groove (2c) of the screw member (2) has tapered sides on both sides.
  • the point is different from the provided tapered groove ( 2C ), and the others are the same.
  • the protruding peripheral portion (la) and the tapered groove (2c) are fitted by the tapered portion, so that the position is determined and the close contact is increased, so that chatter is prevented during heavy cutting and the tapered groove (2c) is formed.
  • a strong force is applied as a reaction from the engaging taper member (1). Therefore, the screw member (2) has an effect of preventing loosening.
  • the mounting 6 (4a) of the seal X-type milling cutter (4) is loosely fitted to the mounting shaft (3a) of the milling bar (3), and the key grooves (4b) for preventing rotation of both are fitted. Fit the key (3c).
  • the screw member (2) is pressed into the cylindrical tapered member (1) and inserted into the tapered member (1), a slot (lb) is formed in the tapered member (1), so that the inner diameter of the tapered member (1) is formed.
  • the groove (2c) of the screw member (2) is engaged with the projecting peripheral portion (la) of the tapered member (1).
  • the tapered member (1) having this engagement is inserted into the gap between the mounting shaft (3a) and the mounting shaft (4a), and the screw member (2) is screwed into the screw hole of the mounting shaft (3a). (3b). After screwing, insert a hexagon wrench into the hexagon hole (2d) of the screw member (2) and tighten it with the hexagon wrench.
  • the par member (1) is strongly pushed and pressed by the screw member (2) without being displaced in a rigid manner (see FIG. 4).
  • the seal type milling cutter (4) can be firmly attached to the milling cutter (3) without eccentricity.
  • a slot (Ic) is drilled together with the slot (lb) of the taber member (1) (see FIG. 3)
  • the tapered member (1) is uniformly formed with the outer periphery of the mounting shaft (3a). This makes it possible to adhere tightly to the mounting surface, resulting in a more robust mounting state.
  • the screw member (2) is removed by loosening the screw member (2) with a hexagon wrench. Since the tape member (1) firmly pressed is engaged with the screw member (2), it is securely pulled out by the screw member (2), and only the screw member (2) comes off. The par member (1) does not remain. Moreover, the extracted tapered member (1) is integrally engaged with the screw member (2), so that the conventional two members do not separate from the screw member (2) and do not fall off. Also, even if it is corrected by wear or deformation, since the tapered member (1) is of a body type, it can be easily centered and can be corrected by grinding it. Further, the tapered member (1) integrated with the screw member (2) is easy to store.
  • the tapered member (1) is engaged with the screw member (2), but when the member is repaired or cleaned, the engaged state can be easily resolved and separated. Furthermore, if the present invention is used, the power required for cutting, which was previously unstable, is stabilized at around 36 amperes, and the same processing can be performed with the small power required at the cutting site, thereby improving the cutting efficiency. Availability on
  • the mounting member for the shell-type milling cutter according to the present invention is an integrated cylinder in which the cover member (1) is not divided into two parts as in the related art.
  • the taper member (1) When the milling cutter (4) is attached to the milling bar (3), the taper member (1) is pressed into the screw member (2) by pushing the taper member ()). The amount is the same over the entire circumference, there is no eccentricity of the installed milling cutter (4), and there is no gap in the tapered member (1), so that the mounting strength is extremely increased and the roundness is accurate and accurate. ⁇ No chatter, improved cutting accuracy, high speed, heavy cutting, and the same performance as the integrated milling cutter.
  • the tapered member (1) has a cylindrical shape. Despite being an integral type, a slot (lb) is formed on it, so that the protrusion (1a) of the taper member (i) engages with the groove (2c) of the screw member (2). Which allows the screw It is possible to perform both of the press and withdrawal of the tapered member (1) by wood (2).
  • the tapered member (1) when the tapered member (1) is engaged with the screw member (2), the tapered member (1) is always engaged with the screw member (2) by the spring property of the slit (lb) of the taper member (1).
  • the mounting work is simple and quick, and it does not drop from the screw member (2) during removal and is not damaged, and storage is easy.
  • the tapered member (1) since the tapered member (1) is of a cylindrical integral type, it can be easily centered even in the case of scratches or uneven wear, and can be corrected very easily.
  • the slot (lb) formed on the tapered member (1) is not only capable of engaging with the screw member (2), but also has a reduced inner diameter when pressed together with other slot (lb). Its practical value is great, as it has the effect of strongly adhering to the fly-saver (3).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

Le dispositif selon l'invention permet de monter, solidement et sans excentricité, une fraise creuse (4) sur un mandrin (3), les opérations de pose et de dépose de la fraise pouvant être réalisées facilement et rapidement. Etant donné que la réparation d'un raccord conique (1) peut être facilement effectuée, le temps de service de ce raccord est nettement augmenté. De plus, la précision et l'efficacité de coupe de la fraise sont améliorées. Le dispositif selon l'invention est conçu de la façon suivante: le raccord conique (1) utilisé pour le montage d'une fraise creuse (4) présentant un alésage de montage conique (4a), sur l'arbre de montage (3a) du mandrin (3), est pourvu d'une partie circonférentielle (1a) faisant saillie, sur sa partie terminale du côté le plus épais, ainsi qu'une pluralité de rainures (1b) se trouvant dans sa surface circonférentielle extérieure. Une vis (2), utilisée pour le montage du raccord conique (1) à ajustage serré, est pourvue, au niveau de sa tête (2b), d'une rainure (2c) dans laquelle la partie circonférentielle (1a) faisant saillie vient se loger, et présente, sur la surface terminale de ladite tête (2b), un six pans creux (2d).
PCT/JP1993/001545 1992-11-16 1993-10-22 Support pour fraises creuses WO1994011143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4/84986U 1992-11-16
JP8498692U JPH0642017U (ja) 1992-11-16 1992-11-16 シェル型フライスカッタ−用取付部材

Publications (1)

Publication Number Publication Date
WO1994011143A1 true WO1994011143A1 (fr) 1994-05-26

Family

ID=13845949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1993/001545 WO1994011143A1 (fr) 1992-11-16 1993-10-22 Support pour fraises creuses

Country Status (2)

Country Link
JP (1) JPH0642017U (fr)
WO (1) WO1994011143A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014023778A1 (fr) * 2012-08-09 2014-02-13 Franz Haimer Maschinenbau Kg Dispositif de centrage
EP2944407A1 (fr) * 2014-05-16 2015-11-18 Sandvik Intellectual Property AB Agencement de fixation ainsi qu'une pièce interchangeable et une clé de verrouillage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164709A (ja) * 1985-01-10 1986-07-25 I D Ii:Kk シエル型フライスカツタ−の取付方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164709A (ja) * 1985-01-10 1986-07-25 I D Ii:Kk シエル型フライスカツタ−の取付方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014023778A1 (fr) * 2012-08-09 2014-02-13 Franz Haimer Maschinenbau Kg Dispositif de centrage
US9987692B2 (en) 2012-08-09 2018-06-05 Franz Haimer Maschinenbau Kg Centering device
EP2944407A1 (fr) * 2014-05-16 2015-11-18 Sandvik Intellectual Property AB Agencement de fixation ainsi qu'une pièce interchangeable et une clé de verrouillage
CN105081435A (zh) * 2014-05-16 2015-11-25 山特维克知识产权股份有限公司 固定布置以及可互换部件和锁定键

Also Published As

Publication number Publication date
JPH0642017U (ja) 1994-06-03

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