WO2010089861A1 - 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 - Google Patents
先端ヘッド交換式回転工具、先端ヘッド、および工具本体 Download PDFInfo
- Publication number
- WO2010089861A1 WO2010089861A1 PCT/JP2009/051884 JP2009051884W WO2010089861A1 WO 2010089861 A1 WO2010089861 A1 WO 2010089861A1 JP 2009051884 W JP2009051884 W JP 2009051884W WO 2010089861 A1 WO2010089861 A1 WO 2010089861A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- tip head
- serrations
- tip
- coupling
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/12—Cooling and lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/02—Connections between the shanks and detachable cutting heads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S408/00—Cutting by use of rotating axially moving tool
- Y10S408/713—Tool having detachable cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/44—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product
- Y10T408/45—Cutting by use of rotating axially moving tool with means to apply transient, fluent medium to work or product including Tool with duct
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/78—Tool of specific diverse material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/892—Tool or Tool with support with work-engaging structure detachable from cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
- Y10T408/9097—Spiral channel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support
- Y10T408/90993—Screw driven means
Definitions
- the present invention relates to a tip-end replaceable rotary tool, and in particular, a tip-end replacement which enables a tip-end head to be easily and quickly attached and detached with one touch, and to obtain a stable attachment state free from loosening and rattling.
- the present invention relates to a rotary tool.
- a tip-head-exchange-type rotary tool having a shaft-like tool body and a tip head configured separately from the tool body, the tip head being removably attached concentrically to the tip of the tool body It has been known.
- One example of the drill described in Patent Document 1 is that the tip head is integrally fixed to the tool main body by two fastening screws, and projections and recesses are provided radially on the mating surfaces of the two, and The torque is transmitted.
- a tip head exchange type rotary tool when the tool life is reached due to wear of the cutting edge etc., only the tip head can be replaced and the tool body can be reused. It is economical and can make effective use of resources.
- a tapered groove 104 is provided at the tip of the tool main body 100 in a direction perpendicular to the tool axis O, and the tapered protrusion 108 of the reverse taper shape provided on the tip head 102 is tapered. It is considered to fit in the groove 104 and fix it so as to be drawn into the tapered groove 104 by elasticity due to the rubbing groove 106. However, in this case, it is necessary to reduce the taper angle in order to avoid stress concentration in the constricted portion of the tapered protrusion 108, and as shown in FIG. In addition, there is a problem that an appropriate mounting state can not be stably obtained, such as a decrease in clamping force due to repeated use.
- the present invention has been made against the background described above, and the objective of the present invention is that the tip head can be attached and detached easily and quickly with one touch, and a strong attachment state without looseness or looseness
- An object of the present invention is to provide a tip head exchange type rotary tool which can be stably obtained.
- the first invention has a shaft-like tool body and a tip head formed separately from the tool body, and the tip head is detachably attachable to the tip of the tool body.
- a tip-head-exchange-type rotary tool attached to and used in (a) the tool body and the tip head are provided to be able to be fitted in the tool axial direction and to the tool axis O And (b) a plurality of sets separated circumferentially on the outer peripheral surface of the coupling convex portion and the inner wall surface of the coupling concave, and Each set is rotated relative to the tip head in the tool rotation direction with respect to the tip head around the tool axis O with the coupling convex portion and the coupling recess fitted in the tool axial direction.
- the tips are engaged with each other every time (C) provided on the tool body and the tip head, respectively, and the tool body is relative to the tip head in a state in which the serrations are engaged with each other.
- Circumferentially contacting portions which are brought into contact with each other by being rotated in the tool rotational direction and which define a mounting phase around the tool axis O, and (d) provided on the tool body and the tip head,
- An axial contact portion which is brought into close contact with each other in the tool axial direction with a predetermined pressing load in the mounting phase by relatively rotating the tool body in the tool rotational direction with respect to the tip head with the serrations engaged; It is characterized by having.
- the “tool rotational direction” is the rotational direction of the tool when a predetermined process such as drilling is performed by rotationally driving the tip-end head exchange type rotary tool.
- the tip head exchange type rotary tool of the first aspect when the tool body is relatively rotated in the tool rotational direction with respect to the tip head in a state in which the serrations mesh,
- the serrations are inclined at a predetermined inclination angle ⁇ from a direction perpendicular to the tool axis O so that the head and the tool body approach each other in the tool axis direction.
- the inclination angle ⁇ of the serration on the coupling convex side and the serration on the coupling recess is in the range of 0 ° ⁇ ⁇ ⁇ 15 °
- the tip head And the tool body are made to approach each other in the tool axis direction
- the axial contact portions respectively provided on the tool body and the tip head are in plane contact with each other at a substantially right angle to the tool axis O It is characterized in that it is a flat contact surface.
- the serration on the coupling convex portion side and the serration on the coupling recess side are engaged with each other with respect to the tip head.
- the serrations are different from one another such that the tool body is relatively rotated in the tool rotational direction so that the serrations are engaged with each other with a predetermined meshing load in the mounting phase. .
- the circumferential contact portion has a tool axis O so that forces in the direction of pulling in each other act in the tool axis direction. And an inclined surface inclined at a predetermined inclination angle .theta.
- the serration on the coupling convex portion side and the serration on the coupling recess side are the tool body with respect to the tip head. Is relatively rotated in the tool rotational direction and engaged with each other, the curvature of the circumferential arc of the serration on the coupling convex portion side is made larger than the serration on the coupling recess side so as to easily engage with each other, Alternatively, it is characterized in that centers of circumferential arcs of serrations on the coupling convex side and the coupling concave side are offset from each other.
- a seventh invention according to any one of the first invention to the sixth invention, wherein the serration ridges form a triangular mountain shape having an apex angle in the range of 25 ° to 120 °. It is characterized by
- An eighth invention is the tip-head-replaceable rotary tool according to any one of the first invention to the seventh invention, wherein the serrations are provided with a plurality of ridges spaced apart in the tool axis direction, It is characterized in that the items of the plurality of ridges are different from each other so that they can be engaged only when the coupling recess is completely fitted in the tool axial direction.
- the tip of the coupling convex portion and the bottom of one of the bottom portions of the coupling recess Is characterized in that positioning pins and positioning holes are provided which are rotatably fitted relative to each other.
- the tenth invention is the tip-head-replaceable rotary tool according to any one of the first invention to the ninth invention, wherein the tip head is made of cemented carbide, and the coupling convex portion is provided on the tip head On the other hand, the coupling recess is provided in the tool body.
- An eleventh invention is the tip-head-exchange-type rotary tool according to any one of the first invention to the tenth invention, wherein the coupling convex portion has a cross section perpendicular to the tool axis O symmetrical with respect to the tool axis O
- the serrations are provided at both longitudinal ends, and meshed with a pair of serrations provided symmetrically with respect to the tool axis O on the inner wall surface of the coupling recess. It is characterized by being.
- the twelfth invention is the tip-head-exchange-type rotary tool according to any one of the first invention to the eleventh invention, wherein (a) the tip-head-exchange-type rotary tool is continuous across the tip head and the tool body.
- the coupling recess straddles the pair of twist grooves and the tool axis O It is provided so as to penetrate in a direction perpendicular to the direction.
- the thirteenth invention is the tip head replaceable rotary tool according to the twelfth invention, wherein the tool main body is provided with a fluid supply hole on the tool axis O, and Y-shaped in the vicinity of the tip where the tip head is attached And each of the pair of torsion grooves is opened.
- a fourteenth invention relates to a tip head of a tip-to-head interchangeable rotary tool, which is a tip head used for the tip-to-head interchangeable rotary tool according to any of the first to thirteenth inventions.
- a fifteenth invention relates to a tool body of a tip-end interchangeable rotary tool, and is a tool body used for the tip-head-exchangeable rotary tool according to any one of the first to thirteenth inventions.
- axial contact portions respectively provided on the tip head and the tool body are predetermined.
- the pressing load makes the tips closely contact with each other in the tool axis direction, so that the tip head is prevented from loosening or rattling due to the friction of the axially contacting portions, and the circumferential contact portion causes the mounting phase around the tool axis O
- a strong fastening state (mounting state) can be stably obtained including during use of the tool.
- the tip head and the tool body are made to approach each other in the tool axis direction.
- the serrations are inclined at a predetermined inclination angle ⁇ from the direction perpendicular to the tool axis O, the inclination of the serrations preferably brings the axial contact portion into close contact, and a firm fastening state Is obtained stably.
- the axially adhering portions are flat adhering surfaces which are brought into surface contact with each other substantially at right angles to the tool axis O within the range of 0 ° ⁇ ⁇ ⁇ 15 °.
- the axial contact portion is brought into close contact by friction action by the small inclination angle ⁇ and firmly fixed by friction, and the tip head is properly prevented from loosening and rattling, and the tip head is made of a tool main body Even in the case of repeatedly attaching and detaching, the fastening strength is well maintained.
- the serrations on the coupling convex side and the specifications of the serration on the coupling concave side are different from each other.
- the serrations are engaged with a predetermined meshing load, so that the tip head is prevented from loosening or rattling due to the friction caused by the meshing load, which is stable.
- the fastened state (mounted state) is maintained better. Due to the difference in the specifications, when the serration can be brought into close contact in the tool axis direction with a predetermined pressing load, the serration itself can be regarded as the axial contact portion of the first invention.
- the circumferential contact portion has an inclined surface inclined at a predetermined inclination angle ⁇ from the direction parallel to the tool axis O so that the forces in the directions of drawing in each other act in the tool axis direction.
- the axial contact portion can be more closely attached via the torque applied to the circumferential contact portion when the tool is rotationally driven and processed, and the processing torque (rotational resistance) is large. Even in the case, the processing can be properly performed without loosening or sagging the tip head.
- the curvature of the arc of the serration on the coupling convex portion side is in the coupling recess so as to easily engage.
- the serrations are larger than the serrations on the side, or the center of the arcs of the serrations on the coupling convex side and the coupling concave side are offset from each other, so that catching when the serrations are engaged can be suppressed and the engagement can be performed smoothly.
- the serrations are appropriately engaged by relative rotation to the mounting phase in which the circumferential direction abutment portions abut, and a predetermined fastening strength can be obtained, and the mounting work (coupling work) of the tip head is performed more easily be able to.
- the fastening state is well maintained by the meshing friction between the serrations.
- the eighth invention is a case where the serrations have a plurality of ridges, and that the plurality of ridges can be engaged only when the coupling convex portion and the coupling recess are completely fitted in the tool axis direction. Since the originals are different from each other, it is possible to reliably prevent a mounting error in which the tip head is attached to the tool body with incomplete fitting.
- the positioning pin and the positioning hole are provided on the tool axis O of each of the tip of the coupling projection and the bottom of one and the bottom of the coupling recess so as to be relatively rotatably fitted. Since the tip head and the tool body are positioned concentrically, they can be rotated relative to each other to engage the serrations more smoothly and easily.
- the tip head is made of cemented carbide and the joining convex portion is provided on the tip head, the tip head having the joint convex portion, serrations, and processed portions such as cutting edges, etc. Can be easily integrally molded by a mold.
- the tool body in which the coupling recess is provided is made of, for example, a tool material such as high-speed tool steel, and the coupling recess, serration, and the like can be relatively easily provided by cutting, electric discharge machining, or the like.
- the eleventh invention is characterized in that the cross section perpendicular to the tool axis O of the coupling convex portion has a longitudinal shape symmetrical with respect to the tool axis O, and serrations are provided at both longitudinal ends thereof. And the inner head wall of the coupling recess is engaged with a pair of serrations provided symmetrically with respect to the tool axis O, so that the tip head is formed by the two sets of serrations. Can be mounted properly with a stable mounting posture.
- the twelfth invention relates to a two-blade twist drill provided with a pair of helical grooves so as to be continuous across the tip head and the tool body, and the coupling recess straddles the pair of helical grooves.
- the present invention is preferably applied by being provided so as to penetrate in the direction perpendicular to the tool axis O.
- the fluid supply hole is provided on the tool axis O of the tool body, and is branched in a Y shape near the tip to which the tip head is attached. In the case where each is opened, it is possible to appropriately supply a fluid such as lubricating oil or cooling air to the vicinity of the tip head, and the tip head does not require a fluid supply hole, and is configured simply and inexpensively. .
- FIG. 6A is a front view seen from a direction perpendicular to the tool axis O
- FIG. 7B is an enlarged view of a drill tip portion
- (d) is an enlarged view of the ID-ID cross section in (a)
- (e) is an enlarged view of an IE arrow portion in (b).
- FIG. It is the perspective view which looked at the front-end
- Tip head exchangeable twist drill 12 Tool body 14: Tip head 20, 22: Twist groove 30: Coupling convex part 32: Coupling recess 34a, 34b, 36a, 36b, 50a, 50b, 60a, 60b, 62a, 62b: Serration 40: Positioning pin 42: Positioning hole 44a, 44b: Contact surface (circumferential contact portion, inclined surface) 46a, 46b: Contact surface (axially contact portion) 48: Fluid supply hole O: Tool axis ⁇ : inclination angle of serration ⁇ : inclination angle of circumferential contact portion
- the tip head exchange type rotary tool of the present invention is a rotary drill such as a twist drill or end mill having a plurality of twist grooves twisted around a tool axis O, a tap, a straight blade drill having a straight groove parallel to the tool axis O It can be applied to various rotary tools such as tools or rotary grinding tools.
- the coupling convex portion and the coupling recess having a non-circular cross section perpendicular to the tool axis O are configured to have, for example, a rectangular to an oval shape in cross section, but a trifurcated shape, a cross shape, a polygonal shape, etc. It is possible to employ projections and recesses of various cross sections. A plurality of serrations are separated in the circumferential direction according to the cross-sectional shapes of these coupling convex portions and coupling concave portions, and a plurality of serrations are provided. Moreover, although these coupling convex parts and coupling recesses are provided, for example, in parallel with the tool axis O, it is also possible to have an inverse taper shape as shown in FIG.
- the circumferential contact portion has an inclined surface which is inclined at a predetermined inclination angle ⁇ from a direction parallel to the tool axis O so that forces in the direction of pulling in each other act in the tool axis direction, for example.
- a range of about 0 ° ⁇ ⁇ 30 ° is appropriate.
- the inclination angle ⁇ may be 0 °, and it is also possible to incline in the opposite direction if it is small. It is desirable that the circumferential contact portions be provided at equal angular intervals at a plurality of locations around the tool axis O.
- the axial contact portion is configured such that, for example, the serration is inclined at a predetermined inclination angle ⁇ , and the tip head and the tool body are brought into close contact with each other in the tool axis direction, and the coupling convex portion side and the coupling side
- the inclination angle ⁇ of the serration on the recess side is, for example, within the range of 0 ° ⁇ ⁇ ⁇ 15 °, and at least one of the inclination angles ⁇ is positive.
- the inclination angles ⁇ of the serrations on the coupling convex portion side and the coupling recess side are both 0 °, and the axial contact portion is an inclined surface inclined at a predetermined inclination angle from the direction perpendicular to the tool axis O
- the axial contact portion is an inclined surface inclined at a predetermined inclination angle from the direction perpendicular to the tool axis O
- the tip head can be firmly fixed to the tool body by meshing with an extremely large meshing load, but the specifications of both serrations are substantially the same, and the tip mainly on the friction of the axial adhesion portion
- the head may be fixed to the tool body.
- the serrations on the coupling convex side and the serrations on the coupling concave side are easily engaged with each other when the tool body is rotated relative to the tip head in the tool rotational direction and engaged with each other, in other words, engaged It is desirable to make the curvatures of the arcs of the serrations on the joining convex side and the joining concave side different from each other or to make the centers of the arcs eccentric each other so that there is a relatively large play on the start side, but different curvatures. It is also possible to provide them concentrically with the tool axis O with substantially the same effective diameter without making the center of the circular arc eccentric. Further, various aspects are possible such as meshing can be improved simply by providing a chamfer on the ridge line portion on the meshing side tip.
- the ridges of the serrations should preferably have a triangular mountain shape with an apex angle in the range of 25 ° to 120 °, but the cross section may also be an arc shape (wave shape) such as a square or a semicircular arc, etc. Aspects of are possible.
- the serrations are provided with a plurality of ridges spaced apart in the tool axis direction, and the plurality of ridges can be engaged only when the coupling projections and coupling recesses are completely fitted in the tool axis direction. Although it is desirable to make the specifications of (1) different from each other, they may be provided with fixed specifications or only engaging a single ridge and groove.
- the specifications of the ridges to be differentiated in order to regulate the meshing are, for example, the sectional shape (width dimension, height, inclination angle, etc.) of the ridges, the pitch and the like.
- the specifications of the plurality of concave grooves meshing with the ridges are also made different corresponding to the ridges.
- a cylindrical positioning pin and a positioning hole having a circular cross-section which are rotatably fitted relative to each other on the tool axis O of each of the tip of the coupling projection and the bottom of one and the bottom of the coupling recess.
- a positioning pin is provided at the tip of the coupling projection and the positioning hole is provided at the bottom of the coupling recess, but the positioning pin and the positioning hole may be omitted.
- the tip head is preferably made of cemented carbide, but other hard tooling materials such as high speed tool steels and alloyed tool steels can also be employed.
- a tool body for example, high-speed tool steel is suitably used, but other tool materials can also be adopted.
- the coupling recess is provided so as to extend in a direction perpendicular to the tool axis O, straddling a pair of helical grooves, but in an end mill etc., it is necessarily in the direction perpendicular to the tool axis O It is not necessary to be provided so as to penetrate, and a non-circular, bottomed recess (bottomed hole) having an inner wall surface around the entire circumference may be provided.
- the fluid supply hole is provided on the tool axis O of the tool main body, and it is branched in a Y shape near the tip to which the tip head is attached and is opened in a pair of twist grooves.
- a fluid supply hole is provided in their axial center (tool axis O), and it is branched so as to open to the flank face of the tip head, and the fluid
- Similar fluid supply holes can be provided as needed in twist drills with three or more blades, end mills other than drills, and the like.
- the circumferential contact portions provided on the tool body and the tip head are desirably flat contact surfaces that are brought into surface contact with each other, but either or both may be curved surfaces or spherical surfaces, point contacts or line contacts.
- Various modes are possible, such as being able to contact at the same time.
- the axial contact portion be a flat contact surface that is brought into surface contact with each other, but it is also possible to make either one a curved surface or a spherical surface for line contact or point contact.
- FIG. 1 is a view showing a tip head interchangeable twist drill 10 according to an embodiment of the present invention, wherein (a) is a front view seen from a direction perpendicular to the tool axis O and (b) is a drill tip portion. (C) is a longitudinal cross-sectional view of the drill tip portion, (d) is an enlarged view of the ID-ID cross section in (a), (e) is an enlarged view of the IE arrow portion in (b).
- the tip head exchangeable twist drill 10 is a drill with two blades, and has a shaft-like tool body 12 and a tip head 14 configured separately from the tool body 12, and the tip head 14 is a tool body 12.
- FIG. 2 is a front view or perspective view of the drill tip in a state where the tip head 14 is attached as viewed from two directions around the tool axis O.
- FIG. 3 is a view of the tip of the tool body 12 as the tool axis O.
- FIG. 4 is a front view or a perspective view of the tip head 14 as viewed from two directions around the tool axis O. As shown in FIG.
- the tool body 12 coaxially integrally includes a cylindrical shank 16 and a groove 18, and in the groove 18, a pair of twist grooves 20 twisted around the right of the tool axis O with respect to the tool axis O It is formed symmetrically.
- the distal end head 14 is provided with a twisting groove 22 so as to be continuous with the pair of twisting grooves 20 in a state of being attached to the tool body 12, and a tip opening edge of the twisting groove 22 has a pair of cutting edges 24.
- the hole is cut by the cutting edge 24 by being rotationally driven in the direction of tool rotation in the clockwise direction of the tool axis O viewed from the tool body 12 side, and chips are passed through the twist grooves 22 and 20.
- the tool body 12 is made of high-speed tool steel, and the tip head 14 is made of cemented carbide, and is coated with a hard film such as TiN, TiCN, TiAlN, diamond or the like as required.
- a coupling convex portion 30 is provided on the rear end surface of the tip head 14, while a coupling concave portion 32 in which the coupling convex portion 30 can be fitted in the tool axial direction of the tool main body 12 in the tool axial direction. Is provided.
- the coupling convex portion 30 has a longitudinal cross section perpendicular to the tool axis O having a symmetrical longitudinal shape with respect to the tool axis O, and a pair of serrations 34a and 34b are tools at both ends in the longitudinal direction. It is provided symmetrically with respect to the axial center O.
- the coupling recess 32 is penetrated in a direction perpendicular to the tool axis O, straddling the pair of twist grooves 20, and is provided with a wider width than the coupling convex portion 30, as shown in FIG.
- the joint projection 30 can be fitted in the joint recess 32 as indicated by the alternate long and short dash line in d), and a pair of inner wall surfaces of the joint recess 32 can be engaged with the serrations 34a and 34b.
- a pair of serrations 36 a and 36 b are provided symmetrically with respect to the tool axis O. Two sets of serrations are formed by the serrations 34a and 36a, 34b and 36b intermeshing with each other.
- the serrations 34a and 36a, 34b and 36b have tip heads around the tool axis O with the coupling convex portion 30 fitted in the coupling recess 32 as shown by a dashed dotted line in FIG. 1 (d).
- 14 by relatively rotating the tool body 12 in the tool rotational direction, that is, in FIG. 1D, the tool rotational direction is the clockwise direction on the leading edge 38 side, and the coupling convex portion indicated by the alternate long and short dash line 30 is rotated relative to the coupling recess 32 relative to the coupling recess 32 in the left direction relative to the coupling recess 32, whereby the tip heads 14 are engaged with each other in the direction of the tool axis relative to the tool body 12 Stop getting out.
- the ridges of the serrations 34a and 36a, 34b and 36b have a triangular mountain shape as is apparent from FIG. 1 (c), and the apex angle thereof is in the range of 25 ° to 120 ° in this embodiment. The angle is about 90 °.
- the grooves between the ridges have a triangular groove shape corresponding to the ridges.
- the dimensional ratio and angle of each part of drawing are not necessarily represented correctly.
- the serrations 34a and 36a, 34b and 36b have a plurality of (two in the embodiment) ridges spaced apart in the tool axis direction, and the coupling convex portion 30 and the coupling recess 32 are completely in the tool axial direction.
- the items of the plurality of ridges for example, their sectional shapes are different from each other so that they can be engaged only when they are engaged.
- the specifications of the recessed groove are also made different corresponding to the differences in the specifications of the ridges.
- the serrations 34a and 34b on the coupling convex portion 30 side and the serrations 36a and 36b on the coupling recess 32 side are rotated relative to the distal end head 14 in the tool rotational direction relative to the tool body 12 and meshed with each other.
- the curvature of the circular arc in the circumferential direction of the serrations 34a and 34b on the coupling convex portion 30 side becomes serrations 36a and 36b on the coupling recess 32 side so that the play on the engagement start side becomes large. It is bigger than that. Specifically, as shown in FIG.
- the central portion of the arc of the serrations 34a and 34b on the coupling convex portion 30 side has an effective diameter corresponding to the serrations 36a and 36b on the coupling recess 32 side, and the central portion thereof is the serrations 36a and 36b on the coupling recess 32 side
- the serrations 34a and 36a, 34b and 36b are properly meshed with almost no gap.
- the curvatures of the arcs of the serrations 34a and 34b on the coupling convex portion 30 side are not constant, and are relatively small (large diameter) in the central portion, and are large (small diameter) toward the end of the arc.
- the positioning pin 40 can be relatively rotated at the bottom of the coupling recess 32.
- a positioning hole 42 fitted on the tool axis O is provided. Therefore, the positioning pin 40 is fitted in the positioning hole 42, whereby the coupling convex portion 30 and the coupling recess 32 are positioned so as to be relatively rotatable around the tool axis O, and they are relatively rotated.
- the serrations 34a and 34b on the coupling convex portion 30 side and the serrations 36a and 36b on the coupling recess 32 side can be meshed more easily.
- the tip of the positioning pin 40 and the opening of the positioning hole 42 are each provided with a tapered chamfer so that they can be fitted smoothly.
- the tool body 12 and the tip head 14 the tool body 12 is relatively rotated in the tool rotational direction with respect to the tip head 14 with the serrations 34a and 36a, 34b and 36b meshed with each other.
- the contact surfaces 44 a and 44 b which are brought into contact with each other and which define a mounting phase around the tool axis O are provided at two symmetrical positions with respect to the tool axis O.
- the mounting phases of the tool body 12 and the tip head 14 are defined such that the twist grooves 20 and 22 are smoothly continuous. Also, as shown in FIG.
- the contact surfaces 44a and 44b of these are from the direction parallel to the tool axis O so that the forces in the direction of pulling in each other act in the tool axis direction.
- the flat inclined surfaces inclined at a predetermined inclination angle ⁇ in the direction of tool rotation toward the side are brought into surface contact with each other.
- the inclination angle ⁇ is in the range of 0 ° ⁇ ⁇ 30 °, and is approximately 20 ° in this embodiment.
- the tip head exchange type twist drill 10 is rotationally driven in the tool rotational direction and drilling is performed, the rotational torque is appropriately transmitted to the tip head 14 via the contact surfaces 44a and 44b, Even when the cutting resistance is large, the processing can be appropriately performed without the tip head 14 coming off or rattling.
- the contact surfaces 44a and 44b correspond to circumferential contact portions.
- the tool body 12 and the tip head 14 are also rotated relative to the tip head 14 in the tool rotational direction with the serrations 34a and 36a, 34b and 36b engaged with each other.
- the contact surfaces 46a and 46b closely contact each other in the tool axis direction with a predetermined pressing load in the mounting phase are provided at two symmetrical points (parts continuous with the leading edge 38 in the embodiment) with respect to the tool axis O It is done.
- the tip head 14 and the tool body 12 mutually have the tool axis
- the serrations 34a and 36a, 34b and 36b are moved in the direction perpendicular to the tool axis O
- the serrations 34a and 36a, 34b and 36b are inclined by a predetermined angle .phi. (b) see).
- the inclination angle ⁇ is within the range of 0 ° ⁇ ⁇ ⁇ 15 °
- the inclination angle ⁇ of at least one of the serrations 34a and 34b on the coupling convex portion 30 side and the serrations 36a and 36b on the coupling recess 32 side is positive. It is sufficient, but in the present embodiment, it is about 8 ° in all cases.
- the contact surfaces 46a, 46b are brought into surface contact with each other in a flat surface substantially perpendicular to the tool axis O, and the tip head 14 and the slight inclination of the serrations 34a and 36a, 34b and 36b.
- the contact surfaces 46a and 46b are brought into close contact with the tool axis direction with a predetermined pressing load by the wedge action. And firmly fixed. Thereby, it is appropriately prevented that the tip head 14 is loosened or rattled, and a stable fastening state is obtained even at the time of drilling, and the tip head 14 is repeatedly attached to and detached from the tool main body 12 However, the fastening strength is well maintained.
- the contact surfaces 46a and 46b correspond to axial contact portions.
- the dimensions of the serrations 34a and 34b on the coupling convex portion 30 side and the serrations 36a and 36b on the coupling recess 32 side for example, the pitch or inclination angle ⁇ in the tool axis direction of a plurality of convex streaks are made slightly different.
- the gear is meshed with a small meshing load due to the play, but the relative rotation to the mounting phase eliminates the rattle and meshes with a relatively large meshing load.
- the serrations 34a, 36a, 34b, and 36b can be engaged at a predetermined meshing load while the adhesion surfaces 46a and 46b are brought into close contact with a predetermined pressure load by elastic deformation of the serrations 34a, 36a, 34b, and 36b.
- the tool body 12 is provided with a single fluid supply hole 48 on the tool axis O from the rear end, and is branched in a Y shape near the tip to which the tip head 14 is attached, and the pair of twists The grooves 20 are respectively opened.
- 48 h is an opening of the fluid supply hole 48.
- the coupling convex portion 30 and the coupling recess 32 provided on one and the other of the tool body 12 and the tip head 14 are fitted in the tool axial direction.
- two sets of serrations 34a provided circumferentially separately in the coupling convex portion 30 and the coupling recess 32 are provided.
- 36a, 34b and 36b respectively, to prevent the withdrawal of the tip head 14, and the abutment surfaces 44a and 44b abut on each other to define a mounting phase around the tool axis O.
- the distal end head 14 and the tool main body 12 may be relatively rotated in the opposite direction to the above, and can be easily and quickly attached and detached by one touch.
- the tip heads 14 are rotated. So that the serrations 34a and 36a, 34b and 36b are inclined at a predetermined inclination angle .phi. From the direction perpendicular to the tool axis O such that the tool and the tool body 12 approach each other in the tool axis direction.
- the inclinations of the serrations 34a and 36a, 34b and 36b allow the close contact surfaces 46a and 46b to be preferably in close contact with each other, and a strong fastening state can be stably obtained.
- the contact surfaces 46a and 46b are flat surfaces substantially orthogonal to the tool axis O within the range of 0 ° ⁇ ⁇ ⁇ 15 °, the small tilt angle ⁇ is
- the adhesion surfaces 46a and 46b are brought into close contact and firmly fixed by friction due to a wedge action, and the distal end head 14 is appropriately prevented from loosening or rattling, and the distal end head 14 with respect to the tool main body 12 Even in the case of repeated attachment and detachment, the fastening strength is well maintained.
- the specifications of the serrations 34a and 34b on the coupling convex portion 30 side and the serrations 36a and 36b on the coupling recess 32 side are made slightly different and relatively rotated to the mounting phase.
- the meshing load causes meshing
- the mutual friction of the serrations 34a and 36a, 34b and 36b due to the meshing load also prevents the distal head 14 from loosening and rattling, and the friction of the contact surfaces 46a and 46b Coupled with this, the fastening strength is further increased, and the stable fastening state is maintained better.
- the contact surfaces 44a and 44b which are circumferential contact portions, are mutually drawn in the tool axis direction with inclined surfaces inclined at a predetermined inclination angle ⁇ from the direction parallel to the tool axis O Since the directional force is applied, torque applied to the contact surfaces 44a and 44b when drilling is performed by rotationally driving the tip head replaceable twist drill 10 in the tool rotational direction
- the close contact surfaces 46a and 46b which are axially close contact portions, can be further closely adhered, and the tip head 14 can be appropriately loosened or not even when the processing torque (rotational resistance) is large. It can be processed.
- the tool body 12 is relatively rotated in the tool rotational direction with respect to the tip head 14, and when the serrations 34a and 36a, 34b and 36b are engaged, the coupling convexity is easily achieved. Since the curvature of the arc of the serrations 34a and 34b on the portion 30 side is larger than that of the serrations 36a and 36b on the coupling recess 32 side, catching when the serrations 34a and 36a, 34b and 36b are engaged is suppressed and smoothly The serrations 34a and 36a, 34b and 36b are properly engaged to obtain a predetermined fastening strength by relative rotation to a mounting phase in which the engagement surfaces 44a and 44b abut, and the tip head 14 is engaged. Can be done more easily.
- the serrations 34a and 36a, 34b and 36b form a triangular mountain shape in the range of 25 ° to 120 °, the serrations 34a and 36a, 34b and 36b The engaged state is also maintained well by the meshing friction between them.
- the serrations 34a and 36a, 34b and 36b each have two ridges, only when the coupling convex portion 30 and the coupling concave portion 32 are completely fitted in the tool axis direction. Since the specifications of the two ridges differ from each other so that they can be engaged, it is possible to reliably prevent a mounting error in which the tip head 14 is attached to the tool body 12 with incomplete fitting.
- the positioning pin 40 and the positioning hole 42 are provided respectively on the tool axis O of each of the tip of the coupling convex portion 30 and the bottom of the coupling recess 32 so that they can be relatively rotatably fitted. Therefore, the tip head 14 and the tool body 12 are positioned concentrically, and they are rotated relative to each other to perform the fastening operation more smoothly and easily when engaging the serrations 34a and 36a, 34b and 36b. Can.
- the tip head 14 is made of cemented carbide and the coupling convex portion 30 is provided on the tip head 14, the coupling convex portion 30, serrations 34a and 34b, and cutting edges are provided.
- the distal end head 14 having 24 and the like can be easily integrally molded by a molding die. Since the tool body 12 in which the coupling recess 32 is provided is made of high-speed tool steel, the coupling recess 32, serrations 36a, 36b, etc. can be provided relatively easily by cutting, electric discharge machining, or the like.
- the cross section perpendicular to the tool axis O of the coupling convex portion 30 has a longitudinal shape symmetrical with respect to the tool axis O, and serrations are made at both ends in the longitudinal direction.
- 34a, 34b are provided, and are engaged with a pair of serrations 36a, 36b provided symmetrically on the inner wall surface of the coupling recess 32 with respect to the tool axis O.
- the two sets of serrations 34a and 36a, 34b and 36b allow tip head 14 to be properly attached to tool body 12 in a stable mounting orientation.
- the present embodiment relates to a two-blade twist drill in which a pair of twist grooves 20 and 22 are provided so as to be continuous across the tip head 14 and the tool main body 12, and the coupling recess 32 is a pair
- the coupling recess 32 can be appropriately provided by being provided so as to penetrate in a direction perpendicular to the tool axis O across the torsion groove 20 of the second embodiment, and the coupling recess 32 is coupled to the coupling recess 32.
- the projections 30 can be fitted properly.
- the fluid supply hole 48 is provided on the tool axis O of the tool main body 12 and is branched in a Y-shape near the tip to which the tip head 14 is attached. , And fluid such as lubricating oil and cooling air can be appropriately supplied to the vicinity of the tip head 14 and the tip head 14 does not require a fluid supply hole, so that the configuration is simple and inexpensive. Be done.
- the coupling convex may be easily engaged.
- the curvature of the arc of the serrations 34a and 34b on the portion 30 side is larger than that of the serrations 36a and 36b on the coupling recess 32 side, but as shown in (a) and (b) of FIG.
- the curvatures of the arcs of the effective diameter portions of the serrations 50a, 50b, 60a, 60b on the side and the serrations 36a, 36b, 62a, 62b on the coupling recess 32 side are substantially the same, and the centers of the arcs may be offset from each other good.
- FIG. 1 The curvatures of the arcs of the effective diameter portions of the serrations 50a, 50b, 60a, 60b on the side and the serrations 36a, 36b, 62a, 62b on the coupling recess 32 side are substantially the same, and the centers of the arcs may be offset from each other good.
- the serrations 36a and 36b on the coupling recess 32 side are the same as in the previous embodiment and have an arc shape centered on the tool axis O, but the serrations 50a on the coupling convex portion 30 side
- the center of the arc 50b is made eccentric from the tool axis O, and the engagement start side (the tip end side in the left-hand direction of the tool axis O) approaches the tool axis O to be between the serrations 36a and 36b. The play is getting bigger. Further, in FIG.
- the serrations 60a and 60b on the coupling convex portion 30 side are formed in an arc shape centering on the tool axis O, but the arcs of the serrations 62a and 62b on the coupling recess 32 side
- the center of the shaft is eccentric from the tool axis O, and the engagement start side (the open end side in the clockwise direction of the tool axis O) is separated from the tool axis O, and the play between the serrations 60a and 60b is large. It is done.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
Description
なお、「工具回転方向」とは、先端ヘッド交換式回転工具を回転駆動して穴明け等の所定の加工を行う際の工具の回転方向である。
図1は、本発明の一実施例である先端ヘッド交換式ツイストドリル10を示す図で、(a) は工具軸心Oと直角な方向から見た正面図、(b) はドリル先端部分の拡大図、(c) はドリル先端部分の縦断面図、(d) は(a) におけるID-ID断面の拡大図、(e) は(b) におけるIE矢視部分の拡大図である。この先端ヘッド交換式ツイストドリル10は2枚刃のドリルで、軸状の工具本体12と、その工具本体12と別体に構成された先端ヘッド14とを有し、先端ヘッド14が工具本体12の先端に同心に着脱可能に取り付けられて使用される。図2は、先端ヘッド14が取り付けられた状態のドリル先端部分を工具軸心Oまわりの2方向から見た正面図乃至は斜視図で、図3は工具本体12の先端部分を工具軸心Oまわりの2方向から見た斜視図、図4は先端ヘッド14を工具軸心Oまわりの2方向から見た正面図乃至は斜視図である。
Claims (15)
- 軸状の工具本体と、該工具本体と別体に構成された先端ヘッドとを有し、該先端ヘッドが該工具本体の先端に同心に着脱可能に取り付けられて使用される先端ヘッド交換式回転工具であって、
前記工具本体および前記先端ヘッドの一方および他方に工具軸方向に嵌合可能に設けられるとともに、工具軸心Oに対して直角な断面が非円形の結合凸部および結合凹所と、
該結合凸部の外周面および該結合凹所の内壁面にそれぞれ周方向に分離して複数組設けられ、該結合凸部および該結合凹所が工具軸方向に嵌合された状態で、工具軸心Oまわりにおいて前記先端ヘッドに対して前記工具本体が相対的に工具回転方向へ回転させられることにより、各組毎に互いに噛み合わされて該先端ヘッドが該工具本体に対して工具軸方向へ抜け出すことを阻止するセレーションと、
前記工具本体および前記先端ヘッドにそれぞれ設けられ、前記セレーションが噛み合う状態で該先端ヘッドに対して該工具本体が相対的に工具回転方向へ回転させられることにより互いに当接させられ、工具軸心Oまわりの取付位相を規定する周方向当接部と、
前記工具本体および前記先端ヘッドにそれぞれ設けられ、前記セレーションが噛み合う状態で該先端ヘッドに対して該工具本体が相対的に工具回転方向へ回転させられることにより、前記取付位相において所定の押圧荷重で互いに工具軸方向に密着させられる軸方向密着部と、
を有することを特徴とする先端ヘッド交換式回転工具。 - 前記セレーションが噛み合う状態で前記先端ヘッドに対して前記工具本体が相対的に工具回転方向へ回転させられる際に、該先端ヘッドと該工具本体とが互いに工具軸方向へ接近させられるように、該セレーションは工具軸心Oに対して直角な方向から所定の傾斜角φで傾斜させられている
ことを特徴とする請求の範囲第1項に記載の先端ヘッド交換式回転工具。 - 前記結合凸部側のセレーションおよび前記結合凹所側のセレーションの前記傾斜角φは0°≦φ≦15°の範囲内で、少なくとも何れか一方の傾斜角φが正とされ、該セレーションが噛み合う状態で前記先端ヘッドに対して前記工具本体が相対的に工具回転方向へ回転させられる際に、該先端ヘッドと該工具本体とが互いに工具軸方向へ接近させられる一方、
前記工具本体および前記先端ヘッドにそれぞれ設けられる前記軸方向密着部は、互いに面接触させられる工具軸心Oに対して略直角で平坦な密着面である
ことを特徴とする請求の範囲第2項に記載の先端ヘッド交換式回転工具。 - 前記結合凸部側のセレーションおよび前記結合凹所側のセレーションは、互いに噛み合う状態で前記先端ヘッドに対して前記工具本体が相対的に工具回転方向へ回転させられることにより、前記取付位相において所定の噛合荷重で噛み合うように、該セレーションの諸元が互いに相違させられている
ことを特徴とする請求の範囲第1項~第3項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記周方向当接部は、工具軸方向に互いに引き込む方向の力が作用するように工具軸心Oと平行な方向から所定の傾斜角θで傾斜させられた傾斜面を有する
ことを特徴とする請求の範囲第1項~第4項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記結合凸部側のセレーションおよび前記結合凹所側のセレーションは、前記先端ヘッドに対して前記工具本体が相対的に工具回転方向へ回転させられて互いに噛み合わされる際に、容易に噛み合うように該結合凸部側のセレーションの周方向の円弧の曲率が該結合凹所側のセレーションよりも大きくされ、或いは該結合凸部側および該結合凹所側のセレーションの周方向の円弧の中心が互いに偏心させられている
ことを特徴とする請求の範囲第1項~第5項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記セレーションの凸条は、頂角が25°~120°の範囲内の三角山形状を成している
ことを特徴とする請求の範囲第1項~第6項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記セレーションは工具軸方向に離間して複数の凸条を備えているとともに、前記結合凸部および前記結合凹所が工具軸方向において完全に嵌合した場合にのみ噛合可能なように該複数の凸条の諸元が互いに相違している
ことを特徴とする請求の範囲第1項~第7項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記結合凸部の先端および前記結合凹所の底部の一方および他方の各々の工具軸心O上には、互いに相対回転可能に嵌合される位置決めピンおよび位置決め穴が設けられている
ことを特徴とする請求の範囲第1項~第8項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記先端ヘッドは超硬合金にて構成されており、前記結合凸部は該先端ヘッドに設けられている一方、前記結合凹所は前記工具本体に設けられている
ことを特徴とする請求の範囲第1項~第9項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記結合凸部は工具軸心Oに対して直角な断面が該工具軸心Oに対して対称的な長手形状を成していて、その長手方向の両端部に前記セレーションが設けられており、前記結合凹所の内壁面に工具軸心Oに対して対称的に設けられた一対のセレーションと噛み合わされる
ことを特徴とする請求の範囲第1項~第10項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記先端ヘッド交換式回転工具は、前記先端ヘッドおよび前記工具本体に跨がって連続するように工具軸心Oに対して対称的に一対のねじれ溝が設けられた2枚刃のツイストドリルで、
前記結合凹所は前記一対のねじれ溝に跨がって工具軸心Oと直角な方向に貫通するように設けられている
ことを特徴とする請求の範囲第1項~第11項の何れか1項に記載の先端ヘッド交換式回転工具。 - 前記工具本体には工具軸心O上に流体供給穴が設けられているとともに、前記先端ヘッドが取り付けられる先端近傍でY字状に分岐させられ、前記一対のねじれ溝にそれぞれ開口させられている
ことを特徴とする請求の範囲第12項に記載の先端ヘッド交換式回転工具。 - 請求の範囲第1項~第13項の何れか1項に記載の先端ヘッド交換式回転工具に用いられる先端ヘッド。
- 請求の範囲第1項~第13項の何れか1項に記載の先端ヘッド交換式回転工具に用いられる工具本体。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010549301A JP5279848B2 (ja) | 2009-02-04 | 2009-02-04 | 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 |
PCT/JP2009/051884 WO2010089861A1 (ja) | 2009-02-04 | 2009-02-04 | 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 |
CN200980156085XA CN102307693B (zh) | 2009-02-04 | 2009-02-04 | 前端头可换式旋转工具,前端头及工具主体 |
KR1020117020261A KR101529368B1 (ko) | 2009-02-04 | 2009-02-04 | 선단 헤드 교환식 회전 공구, 선단 헤드, 및 공구 본체 |
DE112009004410T DE112009004410T5 (de) | 2009-02-04 | 2009-02-04 | Austauschbares sich drehendes werkzeug mit einem kopf mit schrägkante, kopf mit schrägkante und werkzeugkörper |
US13/147,057 US8864425B2 (en) | 2009-02-04 | 2009-02-04 | Bevel head replaceable rotary tool, bevel head and tool body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/051884 WO2010089861A1 (ja) | 2009-02-04 | 2009-02-04 | 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010089861A1 true WO2010089861A1 (ja) | 2010-08-12 |
Family
ID=42541783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/051884 WO2010089861A1 (ja) | 2009-02-04 | 2009-02-04 | 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8864425B2 (ja) |
JP (1) | JP5279848B2 (ja) |
KR (1) | KR101529368B1 (ja) |
CN (1) | CN102307693B (ja) |
DE (1) | DE112009004410T5 (ja) |
WO (1) | WO2010089861A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020189698A1 (ja) * | 2019-03-18 | 2020-09-24 | 三菱マテリアル株式会社 | 刃先交換式ドリル、切削インサートおよびドリル本体 |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011021275A1 (ja) * | 2009-08-18 | 2011-02-24 | オーエスジー株式会社 | スローアウェイ式回転工具 |
US9662717B2 (en) * | 2011-05-23 | 2017-05-30 | Sharon-Cutwell Co., Inc. | Drilling tool |
EP2769792B1 (en) * | 2011-10-17 | 2020-01-08 | Mitsubishi Materials Corporation | Holder for head replacement-type cutting tool, and head replacement-type cutting tool |
US9073129B2 (en) * | 2012-03-22 | 2015-07-07 | Kennametal Inc | Cutting tool having replaceable cutting insert and replaceable cutting insert therefore |
CN102847992B (zh) * | 2012-09-21 | 2015-07-29 | 株洲钻石切削刀具股份有限公司 | 一种钻削加工刀具 |
DE102013205889B3 (de) | 2013-04-03 | 2014-05-28 | Kennametal Inc. | Kupplungsteil, insbesondere Schneidkopf für ein Rotationswerkzeug sowie ein derartiges Rotationswerkzeug |
DE102013209371B4 (de) * | 2013-05-21 | 2021-04-29 | Kennametal Inc. | Kupplungsteil, insbesondere Schneidkopf für ein Rotationswerkzeug sowie hierzu komplementäres Kupplungsteil und Rotationswerkzeug |
USD734790S1 (en) * | 2013-06-12 | 2015-07-21 | Element Six (Production) (Pty) Ltd | Drill bit tip |
DE102013220884B4 (de) | 2013-10-15 | 2022-02-17 | Kennametal Inc. | Modulares Trägerwerkzeug sowie Werkzeugkopf |
DE102014206796B4 (de) | 2014-04-08 | 2020-10-15 | Kennametal Inc. | Rotationswerkzeug, insbesondere Bohrer sowie Schneidkopf für ein solches Rotationswerkzeug |
DE102014105908B4 (de) * | 2014-04-28 | 2020-06-25 | Hartmetall-Werkzeugfabrik Paul Horn Gmbh | Werkzeug zur spanenden Bearbeitung eines Werkstücks und Verfahren zur Herstellung eines Werkzeugs |
CN104384575B (zh) * | 2014-11-05 | 2017-03-29 | 株洲钻石切削刀具股份有限公司 | 一种分体式旋转刀具 |
CN104526021A (zh) * | 2014-12-22 | 2015-04-22 | 苏州用朴合金工具有限公司 | 一种冷却可调的硬质合金钻头刀具 |
DE102015211744B4 (de) | 2015-06-24 | 2023-07-20 | Kennametal Inc. | Rotationswerkzeug, insbesondere Bohrer, und Schneidkopf für ein solches Rotationswerkzeug |
USD798922S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for rotary drill |
US10071430B2 (en) | 2015-10-07 | 2018-09-11 | Kennametal Inc. | Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head |
USD798921S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for modular drill |
US9937567B2 (en) * | 2015-10-07 | 2018-04-10 | Kennametal Inc. | Modular drill |
DE102015220777B4 (de) * | 2015-10-23 | 2020-08-13 | Kennametal Inc. | Werkzeugkupplung zwischen zwei Kupplungsteilen sowie Kupplungsteil für eine solche Werkzeugkupplung |
DE102015220791B4 (de) * | 2015-10-23 | 2020-08-13 | Kennametal Inc. | Rotationswerkzeug, insbesondere Bohrer sowie Schneidkopf für ein solches Rotationswerkzeug |
PL3509782T3 (pl) * | 2016-09-07 | 2023-04-11 | Iscar Ltd. | Trzpień narzędzia z powierzchnią nośną głowicy z centralnym wgłębieniem wyposażonym w sprężyście przemieszczające się części zaczepowe |
CN106694957A (zh) * | 2016-11-11 | 2017-05-24 | 丹阳宝联五金制品有限公司 | 一种分体式钻头 |
DE102017204452B4 (de) | 2017-03-16 | 2022-02-17 | Kennametal Inc. | Rotationswerkzeug |
DE102017205166B4 (de) | 2017-03-27 | 2021-12-09 | Kennametal Inc. | Modulares Rotationswerkzeug und modulares Werkzeugsystem |
DE102017212054B4 (de) | 2017-07-13 | 2019-02-21 | Kennametal Inc. | Verfahren zur Herstellung eines Schneidkopfes sowie Schneidkopf |
US10799958B2 (en) | 2017-08-21 | 2020-10-13 | Kennametal Inc. | Modular rotary cutting tool |
JP6507385B1 (ja) * | 2017-10-19 | 2019-05-08 | 株式会社タンガロイ | 締結構造、ヘッド及びシャンク |
US11110521B2 (en) | 2018-03-07 | 2021-09-07 | Iscar, Ltd. | Rotary cutting head having a rigid mounting protuberance and rotary cutting tool |
WO2020046345A1 (en) * | 2018-08-30 | 2020-03-05 | 5Me Ip, Llc | External axial flow cryogenic endmill |
CN112077370A (zh) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | 可转位钻头刀片 |
DE102019133212A1 (de) * | 2019-12-05 | 2021-06-10 | Kennametal Inc. | Rotations-Schneidwerkzeug |
CN113953565B (zh) * | 2021-11-11 | 2023-06-27 | 株洲钻石切削刀具股份有限公司 | 一种钻削加工刀具 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3153356A (en) * | 1962-12-17 | 1964-10-20 | Howard K Dearborn | Gun drill |
JP2003505261A (ja) * | 1999-08-03 | 2003-02-12 | ケンナメタル インコーポレイテッド | 交換可能な切削チップを有するドリル |
JP2003517942A (ja) * | 1999-12-21 | 2003-06-03 | サンドビック アクティエボラーグ | 工具チップと工具ボディとの組立物 |
JP2003245813A (ja) * | 2002-02-25 | 2003-09-02 | Kennametal Inc | ドリル |
JP2004209615A (ja) * | 2003-01-08 | 2004-07-29 | Mitsubishi Materials Corp | 溝入れバイト及びスローアウェイチップ |
JP2005517539A (ja) * | 2002-02-21 | 2005-06-16 | ケンナメタル インコーポレイテッド | 交換可能な切刃インサートを備えた回転切削工具 |
WO2008072840A2 (en) * | 2007-11-05 | 2008-06-19 | Taegutec. Ltd. | Rotary cutting tool |
WO2008099378A1 (en) * | 2007-02-12 | 2008-08-21 | Iscar Ltd. | Tool with releasably mounted self-clamping cutting head |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US756339A (en) * | 1903-11-14 | 1904-04-05 | William R Down | Composite drill. |
US5114286A (en) * | 1991-08-13 | 1992-05-19 | Calkins Donald W | Interchangeable tool alignment system |
IL125766A (en) * | 1998-08-13 | 2002-12-01 | Iscar Ltd | The barrel of a tool and a rotating cutting head for placing on it in the form of a self-lining |
DE10042990A1 (de) * | 2000-09-01 | 2002-03-28 | Kennametal Inc | Rundlauf-Schneidwerkzeug, z. B. Bohrer |
JP3851804B2 (ja) | 2001-10-26 | 2006-11-29 | 住友電工ハードメタル株式会社 | 刃先交換式ツイストドリル |
DE10246871A1 (de) * | 2002-10-08 | 2004-05-06 | Sandvik Ab | Gewindewerkzeug mit Kühlmittelzufuhr |
US7004691B2 (en) * | 2002-11-15 | 2006-02-28 | Unitac Incorporated | Deep hole cutter |
IL162147A (en) * | 2004-05-24 | 2008-03-20 | Gil Hecht | Drill with interchangeable head |
SE528299C2 (sv) * | 2004-09-24 | 2006-10-17 | Seco Tools Ab | Skärspets och skärverktyg med hållardel utformad som stympad konisk gänga |
US7467915B2 (en) * | 2004-10-06 | 2008-12-23 | Kennametal Inc. | Modular drill |
JP4494384B2 (ja) | 2006-10-10 | 2010-06-30 | 新東ホールディングス株式会社 | ハイブリッドic回路 |
DE102007044095A1 (de) * | 2007-09-14 | 2009-03-19 | Hartmetall-Werkzeugfabrik Paul Horn Gmbh | Bohrwerkzeug mit Bohrkrone |
-
2009
- 2009-02-04 JP JP2010549301A patent/JP5279848B2/ja not_active Expired - Fee Related
- 2009-02-04 CN CN200980156085XA patent/CN102307693B/zh not_active Expired - Fee Related
- 2009-02-04 DE DE112009004410T patent/DE112009004410T5/de not_active Withdrawn
- 2009-02-04 KR KR1020117020261A patent/KR101529368B1/ko active IP Right Grant
- 2009-02-04 US US13/147,057 patent/US8864425B2/en not_active Expired - Fee Related
- 2009-02-04 WO PCT/JP2009/051884 patent/WO2010089861A1/ja active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3153356A (en) * | 1962-12-17 | 1964-10-20 | Howard K Dearborn | Gun drill |
JP2003505261A (ja) * | 1999-08-03 | 2003-02-12 | ケンナメタル インコーポレイテッド | 交換可能な切削チップを有するドリル |
JP2003517942A (ja) * | 1999-12-21 | 2003-06-03 | サンドビック アクティエボラーグ | 工具チップと工具ボディとの組立物 |
JP2005517539A (ja) * | 2002-02-21 | 2005-06-16 | ケンナメタル インコーポレイテッド | 交換可能な切刃インサートを備えた回転切削工具 |
JP2003245813A (ja) * | 2002-02-25 | 2003-09-02 | Kennametal Inc | ドリル |
JP2004209615A (ja) * | 2003-01-08 | 2004-07-29 | Mitsubishi Materials Corp | 溝入れバイト及びスローアウェイチップ |
WO2008099378A1 (en) * | 2007-02-12 | 2008-08-21 | Iscar Ltd. | Tool with releasably mounted self-clamping cutting head |
WO2008072840A2 (en) * | 2007-11-05 | 2008-06-19 | Taegutec. Ltd. | Rotary cutting tool |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020189698A1 (ja) * | 2019-03-18 | 2020-09-24 | 三菱マテリアル株式会社 | 刃先交換式ドリル、切削インサートおよびドリル本体 |
Also Published As
Publication number | Publication date |
---|---|
JP5279848B2 (ja) | 2013-09-04 |
US8864425B2 (en) | 2014-10-21 |
CN102307693A (zh) | 2012-01-04 |
DE112009004410T5 (de) | 2012-08-30 |
JPWO2010089861A1 (ja) | 2012-08-09 |
KR20110108421A (ko) | 2011-10-05 |
CN102307693B (zh) | 2013-07-31 |
US20120121347A1 (en) | 2012-05-17 |
KR101529368B1 (ko) | 2015-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010089861A1 (ja) | 先端ヘッド交換式回転工具、先端ヘッド、および工具本体 | |
KR101642525B1 (ko) | 칩 제거 가공용 회전 공구 및 이 회전 공구를 위한 루즈 탑 및 기본 몸체 | |
US7070367B2 (en) | Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill | |
CN102245335B (zh) | 具有可松开地安装的自夹持切削头的切削刀具 | |
US8678723B2 (en) | Throw-away rotating tool | |
JP5864083B2 (ja) | 切り屑除去機械加工用回転工具及びそのルーズトップ | |
US8226333B2 (en) | Tool for chip removing machining as well as a part and threaded joint therefor | |
KR20100138796A (ko) | 칩제거 기계가공용 회전 공구, 이 회전 공구를 위한 루즈 탑 및 기본 몸체 | |
JP2003291044A (ja) | 回転工具及びその刃部品 | |
JP2004527391A (ja) | 交換式カッターヘッドを切削工具の自由端に有する回転工具 | |
WO2008014367A1 (en) | Cutting tool with replaceable tip | |
US20090169318A1 (en) | Cutting tool assembly with an eccentric drive member | |
JP2007038362A (ja) | 切削工具 | |
EP2529889B1 (en) | Screwdriver bit | |
KR19980018937A (ko) | 키레스드릴척 (keyless drill chuck) | |
WO2003047797A1 (fr) | Foret a pointe jetable | |
JP4096805B2 (ja) | スローアウェイ式ドリル | |
JP4272455B2 (ja) | スローアウェイ式回転切削工具 | |
CN214517644U (zh) | 便于拆装且具有稳定自锁功能的旋转件、刀具及复合刀具 | |
JPH10249627A (ja) | エンドミル | |
US11534896B2 (en) | Rotation tool | |
JP4791826B2 (ja) | 刃具交換式回転工具、その刃具交換式回転工具に用いられる交換刃具およびホルダー | |
JP2007167977A (ja) | 刃具交換式回転工具、その刃具交換式回転工具に用いられる交換刃具およびホルダー | |
JPH10128612A (ja) | 刃部交換式エンドミル | |
JP2574357Y2 (ja) | 回転切削工具のストレートシャンク、ストレートコレット、および工具ホルダ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980156085.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09839638 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010549301 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13147057 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112009004410 Country of ref document: DE Ref document number: 1120090044107 Country of ref document: DE |
|
ENP | Entry into the national phase |
Ref document number: 20117020261 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09839638 Country of ref document: EP Kind code of ref document: A1 |