CN108290234B - Indexable insert blade type cutting element - Google Patents
Indexable insert blade type cutting element Download PDFInfo
- Publication number
- CN108290234B CN108290234B CN201680030152.3A CN201680030152A CN108290234B CN 108290234 B CN108290234 B CN 108290234B CN 201680030152 A CN201680030152 A CN 201680030152A CN 108290234 B CN108290234 B CN 108290234B
- Authority
- CN
- China
- Prior art keywords
- hole
- mounting base
- diameter portion
- wide diameter
- pinching screw
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 104
- 230000002093 peripheral effect Effects 0.000 claims description 42
- 238000009434 installation Methods 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 21
- 238000005452 bending Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 210000003371 toe Anatomy 0.000 description 2
- 235000010676 Ocimum basilicum Nutrition 0.000 description 1
- 240000007926 Ocimum gratissimum Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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
- B23C5/1009—Ball nose end mills
- B23C5/1027—Ball nose end mills with one or more removable cutting inserts
- B23C5/1036—Ball nose end mills with one or more removable cutting inserts having a single cutting insert, the cutting edges of which subtend 180 degrees
-
- 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
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
-
- 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
- B23C5/22—Securing arrangements for bits or teeth or cutting inserts
- B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
- B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts
- B23C5/2213—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts having a special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/16—Fixation of inserts or cutting bits in the tool
- B23C2210/165—Fixation bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
In the indexable insert blade type cutting element, cutting tip is detachably mounted in blade mounting base and being seated in blade mounting base and being clamped by pinching screw, the face of taking a seat that can be abutted with the mounting base bottom surface of blade mounting base is formed in vane body, the through hole of perforation vane body and two sides, the through hole is in described two side upper openings, at least one opening portion in the opening portion towards described two sides of vane body of the through hole is formed with wide diameter portion, the internal diameter of the wide diameter portion is greater than the internal diameter of the part abutted with the cylindrical portion of pinching screw in the through hole.
Description
Technical field
The present invention relates to a kind of indexable insert blade type cutting elements, wherein cutting tip is by being seated at the tool of being formed in
It is clamped in the blade mounting base of the slit-shaped of the front end of main body and by pinching screw, so that the cutting tip is detachably
It is installed in the blade mounting base, wherein the cutting tip has the vane body for being formed with cutting edge.
The application is claimed priority based on December 1st, 2015 in the 2015-234767 patent application of Japanese publication, and
And here cite its content.
Background technique
As this indexable insert blade type cutting element, such as propose following cutting element in patent document 1: one
Kind indexable insert blade type cutting element, the blade installation of the hollow portion in the front end for being set to tool body with slit-shaped
Cutting tip is clamped on seat, and the cutting tip is fixed by secure component, wherein in the blade mounting base side of tool body
The part corresponding with the head circular conical surface of secure component in portion is provided with the center line relative to secure component and to tool body
The conical bearing surface of extreme direction bias afterwards, another blade mounting base side surface part be provided with secure component cylindrical portion supported hole and
Its side wall and internal thread part, the internal thread part is connected with the side wall and corresponding with the external thread part of secure component, by by blade
Pressing that mounting base side surface part carries out and the pin hole side slave cutting tip carried out by the cylindrical portion of secure component are to tool master
Cutting tip is fixed in the pressing of the rear end side of body, and by making the side wall of cylindrical portion supported hole and the cylindrical portion of secure component
Abut and as datum clamp face.
Here, in the indexable insert blade type cutting element documented by the patent document 1, such as above by tool body
The part corresponding with secure component head circular conical surface of blade mounting base side surface part center line relative to secure component is set
And to the conical bearing surface of extreme direction bias after tool body, and be screwed into secure component and make secure component with secure component
The lateral inclined mode of tool body rear end side in head is bent, thus using the cylindrical portion of secure component to tool body rear end side
Press the pin hole side of cutting tip.
Also, due to and abutting the side wall of cylindrical portion supported hole with the cylindrical portion of secure component as reference for installation
Face, therefore can be by between cylindrical portion lower end when being so bent secure component and cylindrical portion supported hole front end side side wall
It presses to stablize the pressing force of the cutting tip generated by cylindrical portion, additionally it is possible to various directions for tool use process and big
Small load keeps high-precision cutting tip installation accuracy.
Patent document 1: No. 3971522 bulletins of Japanese Patent No.
But the secure component of the indexable insert blade type cutting element documented by the patent document 1 has a problem in that
Since the pin hole side of cutting tip abuts in the substantially whole length of the centerline direction of secure component with cylindrical portion,
It is difficult to be bent secure component.In addition, due to pin hole side in the substantially whole length of the centerline direction of secure component with circle
Canister portion abuts, therefore the contact area between the pin hole side and the cylindrical portion is also larger, and in cylindrical portion to tool body
Frictional resistance when rear end side pressing pin hole side is also larger, to it is also possible to lead to cutting tip when tightening secure component
Offset movement.
Summary of the invention
The present invention proposes in this background, its purpose is to provide a kind of indexable insert blade type cutting element,
As described above be able to achieve cutting tip pressing force it is stabilized simultaneously, additionally it is possible to be easy to secure component (pinching screw)
Bending, and the situation as the cutting tip offset movement when tightening can be prevented.
To solve the above-mentioned problems and realize this purpose, in indexable insert blade type cutting element of the invention, cutting
Blade passes through in the blade mounting base for the slit-shaped for being seated at the front end for being formed in tool body and is clamped by pinching screw, from
And the cutting tip is detachably installed in the blade mounting base, wherein the cutting tip, which has, is formed with cutting
The vane body of sword, the indexable insert blade type cutting element is characterized in that, is formed with: being taken a seat in the vane body
Face can be abutted with the mounting base bottom surface of the blade mounting base；Through hole penetrates through the vane body for the pinching screw
Insert；With two sides, the through hole is in described two side upper openings, in the blade installation for pressing described two sides
In two mounting base wall surfaces relative to each other of seat, reference for installation hole and threaded hole are formed on a mounting base wall surface, and
And it is formed with coniform supporting surface in the tool body front end side of another mounting base wall surface, the coniform supporting surface has phase
For the threaded hole center line and to the center line of tool body rear end eccentricity, in the one end shape of the pinching screw
At there is the external thread part being screwed into the threaded hole, being formed in the other end has and can slide with the coniform supporting surface
The head of the conical surface-shaped outer peripheral surface of contact is formed with cylindrical portion, the cylinder between the external thread part and the head
The inner circumferential of the tool body front end side of the outer peripheral surface and reference for installation hole of the one end side by the pinching screw in portion
Face abuts, and the outer peripheral surface of the other end side and the blade master are more depended in reference for installation hole described in the ratio of the cylindrical portion
The inner peripheral surface of tool body rear end side in the through hole of body abuts, the vane body through hole towards blade master
At least one opening portion in the opening portion of described two sides of body is formed with wide diameter portion, and the internal diameter of the wide diameter portion is greater than institute
The internal diameter for stating the part abutted with the cylindrical portion of the pinching screw in through hole, from the knife for being formed with the wide diameter portion
The depth for the wide diameter portion that the side of piece main body is risen is greater than radius side of the wide diameter portion relative to the center line of the through hole
To expanding amount.
In the indexable insert blade type cutting element so constructed, when installing cutting tip and being screwed into pinching screw
When, the formation of pinching screw has the outer peripheral surface of the cylindrical portion in the one end side of external thread part and the tool in the reference for installation hole
The inner peripheral surface sliding contact of body front end side, therefore these inner and outer circumferential surfaces are as indexable insert blade type documented by patent document 1
Datum clamp face in cutting element plays a role.Therefore, with indexable insert blade type cutting element documented by patent document 1
Equally, the pressing force of cutting tip can be stablized, thus the load in various directions and size when can also be directed to machining
High-precision cutting tip installation accuracy is maintained, and obtains higher machining accuracy.
Also, in the indexable insert blade type cutting element of above structure, further in the court of the through hole of vane body
At least one opening portion into the opening portion of described two sides is formed with wide diameter portion, and the internal diameter of the wide diameter portion is greater than described
The internal diameter of the part abutted with the cylindrical portion of pinching screw in through hole, therefore can be by the wide diameter portion in through hole and folder
Interval between the cylindrical portion of tight screw can be such that pinching screw is readily bent when clamping and fixed cutting tip.Therefore,
It can also be screwed into power with less and conscientiously and be stably installed at cutting tip in blade mounting base.
In addition, can reduce clamping due to the interval between through hole and cylindrical portion so in the wide diameter portion
Contact area between the cylindrical portion and through hole of screw, and pinching screw can also be reduced to tool body rear end side with this
Frictional resistance when through hole is pressed, therefore can be prevented such as when tightening pinching screw (in the fastening of pinching screw that is near completion
The such situation of vane body offset movement before).Therefore the further high precision int of cutting tip installation accuracy, energy are able to achieve
Enough further increase machining accuracy.
In addition, since the depth of the wide diameter portion from being formed with the side of the vane body of the wide diameter portion being set
For the expanding amount greater than the wide diameter portion relative to the radial direction of the center line of the through hole, therefore can effectively reduce
While contact area between the cylindrical portion and through hole of pinching screw, it can prevent from too greatly extracting perforation because of wide diameter portion
The opening portion in hole.Therefore the feelings as cutting damage from through hole generation in being clamped the vane body that screw presses can be prevented
Condition.
In particular it is preferred that in two sides of the vane body, at least towards by one mounting base wall surface
The opening portion of the through hole of the side of pressing is formed with the wide diameter portion.The cylindrical portion of pinching screw is by forming as a result,
Having the side of the datum clamp face pressing in reference for installation hole will not contact with through hole.Thus, for example in cylindrical portion
When being screwed into pinching screw in the lesser situation in gap between the through hole of the part abutted with for the cylindrical portion, this can be passed through
Kind contacts the installation runout accuracy error to prevent vane body.
In addition, in contrast to this, it can also be in two sides of the vane body, at least towards by described another
The opening portion of the through hole of the side of a mounting base wall surface pressing is formed with the wide diameter portion.Pass through pinching screw as a result,
Bending, the circle as datum clamp face for being located proximate to pinching screw that the outer peripheral surface of cylindrical portion can be made to contact with through hole
The one end side outer peripheral surface of canister portion.Therefore, even if the amount of bow of pinching screw is identical, can also reinforce with the one end side periphery
Face is point action in the pressing force on the position that cylindrical portion is contacted with through hole, and can be stronger by cutting tip 3
Ground is fixed in blade mounting base 2.Moreover, because the biggish side of bending in pinching screw is formed with wide diameter portion, therefore energy
Enough increase amount of bow itself.It is of course also possible to which the both sides in the side of vane body form the wide diameter portion, in this case can
Obtain above-mentioned two effect.
Additionally, it is preferred that the wide diameter portion has: bottom surface, it is parallel with the side that the wide diameter portion is open and in institute
State the annular shape centered on the center line of through hole；And inner peripheral surface, with what is be open from the bottom surface towards the wide diameter portion
The side and it is gradually expanding and in conical surface-shaped centered on the center line of the through hole.
As described above, in accordance with the invention it is possible to keep the pressing force of the cutting tip generated by pinching screw stabilized
Simultaneously, additionally it is possible to by cutting tip conscientiously and be accurately mounted in blade mounting base, to be able to achieve cutting for higher precision
Cut processing.
Detailed description of the invention
Fig. 1 is the side view for indicating the front end of indexable insert blade type cutting element of one embodiment of the present invention.
Fig. 2 is the ZZ cross-sectional view in Fig. 1.
Fig. 3 is the figure for the ZZ cross-sectional view for indicating second embodiment of the present invention, being equivalent in Fig. 1.
Fig. 4 is the figure for the ZZ cross-sectional view for indicating third embodiment of the present invention, being equivalent in Fig. 1.
Specific embodiment
Fig. 1 and Fig. 2 is the figure for indicating first embodiment of the invention.The indexable insert blade type skiver of present embodiment
Tool is indexable insert blade type slotting cutter, in particular ball end mill, i.e., cutting tip 3, which is seated at, is formed in centered on axes O
The generally cylindrical tool body 1 of shape front end (left part in Fig. 1 and Fig. 2) slit-shaped blade mounting base
(cutting tip 3 is clamped in blade mounting base 2 by fastening pinching screw 4) on 2 and by the clamping of pinching screw 4, thus
Cutting tip 3 is detachably mounted in blade mounting base 2, wherein the cutting tip 3, which has, is formed with arc-shaped cutting
The vane body 3b of sword 3a.In this indexable insert blade type cutting element, the shank section (not shown) of 1 rear end side of tool body
Held on the main shaft of lathe, thus while the indexable insert blade type cutting element is rotated around axes O usually to axes O
The direction of intersection is sent out, and carries out machining to workpiece such as metal molds by above-mentioned cutting edge 3a.In addition, in this embodiment party
In formula, the direction of shank section towards blade mounting base 2 in the extending direction of axes O, from tool body 1 is known as front end side
Direction from blade mounting base 2 towards shank section is known as the rear end side (right side in Fig. 1 and Fig. 2 by (left side in Fig. 1 and Fig. 2)
Side).In addition, the direction orthogonal with axes O is known as radial.The direction of close axes O in radial direction is known as diameter inwardly side, it will
Direction far from axes O is known as diameter outward.
It, mainly can with have pinching screw 4 of thread size in the range of M2 to M8 in addition, in the present embodiment
Transposition blade formula cutting element is object, but is cut below to the indexable insert blade type for having the pinching screw 4 that thread size is M8
The tool of cutting is illustrated.In addition, the thread size of the pinching screw 4 of indexable insert blade type cutting element of the invention does not limit
In above range.
The vane body 3b of cutting tip 3 is formed as plate by hard materials such as hard alloy, and has two each other
Parallel side 3c and the take a seat face 3d vertical with these sides 3c, the cutting tip 3 is with above-mentioned arc-shaped (substantially semicircle shape)
Cutting edge 3a to front end periphery (front end side and diameter are outward) prominent and cutting edge 3a of tool body 1 around axes O revolve
Rotational trajectory made of turning is that the hemispherical mode in the axes O with center is mounted in blade mounting base 2.Change speech
It, vane body 3b is mounted in blade mounting base 2 in such a way that the center of the cutting edge 3a circular arc for being in is by axes O.Separately
Outside, it is circular through hole 3e that section is formed on vane body 3b, and the through hole 3e, which has, passes through above-mentioned cutting edge 3a
The center line and perforation vane body 3b of the approximate centre for the circular arc for being in, and in above-mentioned two side 3c upper opening.
On the other hand, hardness by hardness lower than vane body 3b of tool body 1 and pinching screw 4 and being capable of flexible deformation
The metal materials such as steel formed.Wherein, the front end of tool body 1 is formed the case where being equipped with cutting tip 3
Under it is hemispherical centered on intersection point between axes O and the above-mentioned center line of the through hole 3e of vane body 3b.But the work
The radius for the hemisphere that the above-mentioned rotational trajectory of the radius ratio cutting edge 3a for the hemisphere that the front end of tool main body 1 is in is in is slightly smaller.
As shown in Fig. 2, from the direction orthogonal with the above-mentioned center line of through hole 3e of axes O and vane body 3b
When, the insert mounting base 2 for being formed in the front end of this tool body 1 is formed the front end side in tool body 1 with U
The slit-shaped of font opening, i.e. the blade mounting base 2 have: two opposite mounting base wall surface 2a, 2b, parallel to each other and and axis
Line O is parallel；With the mounting base bottom surface 2c towards the front end side of tool body 1, the mounting base bottom surface 2c and these mounting base walls
Face 2a, 2b are vertical and orthogonal with axes O.
Two mounting base wall surfaces 2a, 2b are located at the distance being equal to each other away from axes O, these mounting base wall surfaces 2a, 2b it
Between be set as can be so that above-mentioned two side 3c of vane body 3b be slided respectively with two mounting base wall surfaces 2a, 2b at interval
The mode of contact is embedded in the size of vane body 3b.So by being embedded in vane body 3b and making above-mentioned face 3d and the mounting base of taking a seat
Bottom surface 2c is abutted, so that cutting tip 3 is landed in blade mounting base 2 in the center line of the through hole 3e mode orthogonal with axes O
On.
In addition, in first mounting base wall surface (Fig. 2 as a mounting base wall surface in two mounting base wall surfaces 2a, 2b
In downside mounting base wall surface) on 2a, be formed as follows reference for installation hole 5 and threaded hole 6: i.e. as described above
In the state of being landed in cutting tip 3 in blade mounting base 2, the reference for installation hole 5 and the threaded hole 6 are faced and the first installation
The opening portion of above-mentioned through hole 3e in the side 3c of the vane body 3b of seat wall surface 2a sliding contact.In the present embodiment,
Reference for installation hole 5 is formed in mounting base wall surface 2a upper opening, and on the bottom hole in the reference for installation hole 5 (diameter is outward)
It is formed with threaded hole 6.
Wherein, threaded hole 6 is extended in its center line L1 mode orthogonal with axes O.In addition, reference for installation hole 5 is in along axis
The long hole shape that the direction line O extends, i.e. reference for installation hole 5 is formed a circle on the section parallel with mounting base wall surface 2a
Pass through rectangular (square) of the width equal with the diameter between its diametrically two semicircles after the segmentation of axes O direction
Come the shape being formed by connecting.Center in these semicircles positioned at the semicircle of the front end side of tool body 1 is located in threaded hole 6
On heart line L1, the inner peripheral surface along the semicircular cylinder planar in the reference for installation hole 5 of the semicircle of the front end side is the installation of 1 side of tool body
Datum level 5a.In addition, internal diameter (the screw thread bottom of threaded hole 6 of the internal diameter (said one diameter of a circle) of these semicircles than threaded hole 6
The diameter of (ネ ジ paddy)) it is slightly larger.
On the other hand, in the second mounting base as another mounting base wall surface in two mounting base wall surfaces 2a, 2b
It is formed with recessed coniform hole 7 on wall surface (the mounting base wall surface of the upside in Fig. 2) 2b, thus on the outer peripheral surface of tool body 1
Opening.Wherein, the recessed coniform hole 7 is far from the second mounting base wall surface 2b and with towards the front end periphery of tool body 1
Side (upside in Fig. 2, diameter is outward) and internal diameter becomes larger.The coniform hole 7 is in the tool parallel with mounting base wall surface 2b
Be formed round on the section of main body 1, the internal diameter of the circle with towards the peripheral side of tool body 1 (diameter is outward) and by
Gradual change is big.
In addition, the semicircle conical surface of the semicircle of the front end side along tool body 1 in the recessed coniform hole 7 is in present embodiment
Coniform supporting surface 7a, the center line L2 of the coniform supporting surface 7a is orthogonal with axes O, and the center line with threaded hole 6
L1 compares the rear end eccentricity slightly towards tool body 1.In addition, center line L2 is parallel with center line L1.Eccentricity (center line L1
The distance between center line L2) preferred scope it is different according to the thread size of pinching screw 4.For example, in such as this implementation
In the case that the thread size of the such pinching screw 4 of mode is M8, preferably eccentricity is 0.03~0.1.In addition, in the recessed circular cone
Between the bottom hole (the inside square end of diameter in recessed coniform hole 7) in shape hole 7 and the second mounting base wall surface 2b, with recessed coniform 7 phase of hole
Mode even is formed with long hole portion 7b of the internal diameter greater than the internal diameter in reference for installation hole 5.Long hole portion 7b is formed a circle is (straight
Diameter is greater than the circle of half circular diameter in reference for installation hole 5) pass through between its diametrically two semicircles after the segmentation of axes O direction
The rectangular shape to be formed by connecting of the width equal with the diameter.Also, the center of above-mentioned two semicircle of long hole portion 7b
Midpoint is located on the center line L1 of threaded hole 6.Long hole portion 7b is as follows in the second mounting base wall surface 2b upper opening: i.e. the length
Hole portion 7b is in face of the opening portion with the through hole 3e in the side 3c of the vane body 3b of the second mounting base wall surface 2b sliding contact.
Pinching screw 4 is formed with the external thread part being screwed into above-mentioned threaded hole 6 in one end (lower portion in Fig. 2)
4a, and it is formed with head 4b in the other end (upper portion in Fig. 2), head 4b is threaded by external thread part 4a
When in hole 6 can with above-mentioned coniform supporting surface 7a sliding contact and have with towards the one end side and gradually circular cone of undergauge
The outer peripheral surface of planar.In addition, be formed with connecting hole 4c on the end face of head 4b, connecting hole 4c (makes being screwed into pinching screw 4
The external thread part 4a of pinching screw 4 is screwed togather with threaded hole 6) or while unclamping pinching screw 4 grasp action tool with spanner etc. and engage.
In addition, being formed with cylindrical portion 4d between these external thread parts 4a and head 4b.Cylindrical portion 4d is in its outer peripheral surface
Barrel surface centered on the center line of pinching screw 4, the outer diameter of cylindrical portion 4d are set to the outer diameter than external thread part 4a
Slightly larger and smaller than the internal diameter of the inner peripheral surface of the front end side as above-mentioned datum clamp face 5a in reference for installation hole 5 and difference is extremely
It is subtle.When external thread part 4a is screwed into threaded hole 6 as described above, the outer peripheral surface of cylindrical portion 4d can be with datum clamp face
5a sliding contact.In the present embodiment, it is provided between cylindrical portion 4d and external thread part 4a comprising incomplete thread portion
Interconnecting piece.It is preferred that interconnecting piece has the periphery of cylinder planar, and the interconnecting piece has the bottom diameter (paddy less than external thread part 4a
Diameter) outer diameter.
Also, in the above-mentioned through hole 3e of vane body 3b, in above-mentioned two side 3c towards vane body 3b
Opening portion at least one opening portion on be formed with wide diameter portion 3f, the internal diameter of wide diameter portion 3f is greater than in through hole 3e
The part abutted with the above-mentioned cylindrical portion 4d of pinching screw 4 internal diameter.In the present embodiment, in the direction two of through hole 3e
The both sides of the opening portion of a side 3c are formed with this wide diameter portion 3f, the two in above-mentioned cylindrical portion 4d and through hole 3e are expanding
Part between portion 3f abuts.In other words, through hole 3e is by barrel surface and two wide diameter portion 3f constructions, wherein the barrel surface quilt
Be formed as abutting with the cylindrical portion 4d of pinching screw 4, the internal diameter of wide diameter portion 3f is greater than the internal diameter of barrel surface and in side 3c
The both ends of barrel surface are arranged in the mode of upper opening.
In the present embodiment, wide diameter portion 3f has: bottom surface, it is parallel with the above-mentioned side 3c of vane body 3b and in
Annular shape centered on the center line (center line of the barrel surface of through hole 3e) of through hole 3e；And inner peripheral surface, with from the bottom
Facing towards the side side 3c that wide diameter portion 3f is open and it is gradually expanding and in circular cone centered on the center line of through hole 3e
Planar.The form and dimension that each wide diameter portion 3f is formed the wide diameter portion 3f of two sides side 3c is mutually the same.In addition, from formation
(wide diameter portion 3f is in through hole for the depth of wide diameter portion 3f until having the side 3c to the above-mentioned bottom surface of wide diameter portion 3f of wide diameter portion 3f
Length on the centerline direction of 3e) be greater than wide diameter portion 3f relative to the center line of through hole 3e radial direction (with through hole
The orthogonal direction of the center line of 3e) expanding amount, i.e., the depth of wide diameter portion 3f be greater than side 3c in wide diameter portion 3f radius
(maximum value of the inside radius of wide diameter portion 3f) and the radius for the part of through hole 3e abutted for pinching screw 4 be (through hole 3e's
The inside radius of barrel surface) difference.In addition, the preferred scope of the expanding amount of wide diameter portion 3f according to the thread size of pinching screw 4 and
It is different.For example, in the case where the thread size of pinching screw 4 as in the present embodiment is M8, the expanding amount of wide diameter portion 3f
Preferably the 10~50% of wide diameter portion depth are more preferably 20~40%, and but not limited to this.
In addition, setting the position of the center line of through hole 3e as follows for the through hole 3e of vane body 3b
Set the internal diameter between the part (barrel surface of through hole 3e) that abuts with cylindrical portion 4d: i.e. as described above by making to take a seat
Face 3d is abutted with mounting base bottom surface 2c and is inserted pinching screw 4 in the state of being landed in vane body 3b in blade mounting base 2,
When starting external thread part 4a to be screwed into threaded hole 6, the cylindrical portion 4d of pinching screw 4 outer peripheral surface and through hole 3e with circle
The inner peripheral surface for the 1 rear end side section of tool body in part (barrel surface) that canister portion 4d is abutted is spaced apart very small interval.
In the present embodiment, the internal diameter of the inner peripheral surface of the semicircular cylinder planar of the internal diameter of the barrel surface of through hole 3e and datum clamp face 5a
It is roughly the same.
This indexable insert blade type cutting element passes through as described above with the center line of the through hole 3e of vane body 3b
Cutting tip 3 is embedded in blade mounting base 2 by the mode orthogonal with axes O, and the face 3d that makes to take a seat is abutted with mounting base bottom surface 2c
And the cutting tip 3 is made to take a seat, later by the way that pinching screw 4 is inserted into through hole 3e from recessed coniform hole 7, and by outer spiral shell
Line portion 4a is screwed into threaded hole 6 and assembles the cutting tip 3.
Although being clamped in the center line and threaded hole 6 of screw thread 4 when starting external thread part 4a to be screwed into threaded hole 6
Heart line L1 is coaxial, but when the coniform supporting surface 7a sliding contact of the outer peripheral surface of the head 4b of pinching screw 4 and recessed coniform hole 7
When, due to the coniform supporting surface 7a center line L2 compared with the center line L1 of threaded hole 6 slightly towards the rear end of tool body 1
Eccentricity, therefore pinching screw 4 starts to be bent in such a way that head 4b topples over to the rear end side of tool body 1.
Also, pinching screw 4 is bent if so, then the outer peripheral surface of its cylindrical portion 4d is connected to the part between wide diameter portion 3
The inner peripheral surface of 1 rear end side of tool body of through hole 3e in (barrel surface of through hole 3e), and vane body 3b is pressed
To the mounting base bottom surface 2c of blade mounting base 2.In addition, at the same time, due to the head 4b of pinching screw 4 be pushed to it is coniform
Supporting surface 7a, narrower intervals between two mounting base wall surfaces 2a, 2b of blade mounting base 2 and press two of vane body 3b
Side 3c is pressed by these, cutting tip 3 is clamped and is fixed in blade mounting base 2.
Here, due to when pinching screw 4 starts bending, the periphery of the one end side (side external thread part 4a) of cylindrical portion 4d
The datum clamp face 5a sliding contact of 1 front end side of tool body in face and reference for installation hole 5, therefore pinching screw 4 is with such as lower section
Formula continues to be bent: that is, the head side 4b with datum clamp face 5a sliding with connecing in the outer peripheral surface of the one end side of cylindrical portion 4d
The part of touching is that fulcrum is tilted to the rear end side of tool body 1.That is, connecing with datum clamp face 5a sliding due to cylindrical portion 4d
The part of touching plays a role as the datum clamp face of 4 side of pinching screw, and passes through the datum clamp face of 1 side of tool body
5a constrains pinching screw 4 in the front end side of tool body 1 and peripheral side (diameter is outward), therefore no matter cuts in the cutting process
It cuts sword 3a and load in any direction is applied to cutting tip 3, also cutting tip 3 can be firmly held in blade mounting base 2
On.
Further, since in the indexable insert blade type cutting element of above structure, in through hole 3e towards side 3c's
Opening portion is formed with wide diameter portion 3f, and the internal diameter of wide diameter portion 3f is greater than supporting in through hole 3e with the cylindrical portion 4d of pinching screw 4
The internal diameter of the part (barrel surface of through hole 3e) connect, thus in wide diameter portion 3f can cylindrical portion 4d and through hole 3e it
It is spaced apart biggish interval and is readily bent pinching screw 4.Therefore, can will by make spanner etc. grasp action tool with engage
It is smaller, and energy that hole 4c, which engages and rotates the power control that is screwed into when external thread part 4a is screwed into threaded hole 6 by pinching screw 4,
Pinching screw 4 is enough set effectively to be bent and cutting tip 3 is firmly secured in blade mounting base 2.This can sufficiently be obtained
Length (depth of wide diameter portion 3f) of the wide diameter portion 3f of kind effect on the centerline direction of through hole 3e is according to pinching screw 4
Thread size and it is different.For example, in the case where the thread size of pinching screw 4 as in the present embodiment is M8, wide diameter portion
The above-mentioned length of 3f is preferably the 10~50% of the length of through hole 3e, is more preferably 20~40%, but not limited to this.
In addition, cylindrical portion 4d is in wide diameter portion 3f due to the interval so between wide diameter portion 3f and cylindrical portion 4d
In will not be contacted with through hole 3e, so that the contact area between pinching screw 4 and through hole 3e is smaller.Thus, it is also possible to will
Pinching screw 4 from vane body 3b to the rear end side of tool body 1 and perforation when pinching screw 4 abuts with through hole 3e and presses
Between the 3e of hole frictional resistance control be it is smaller, so as to prevent the clamping spiral shell before it will be completely fixed cutting tip 3
Vane body 3b offset movement when tightening of nail 4, and cutting tip 3 can be mounted on blade mounting base with higher precision
Machining accuracy is improved on 2.
Moreover, in the present embodiment, the both sides in the opening portion of two sides 3 of direction of through hole 3e are formed with expanding
Portion 3f, therefore the contact area between through hole 3e and cylindrical portion 4d can be further reduced, to further decrease friction resistance
Power.In addition, the wide diameter portion 3f's from each side 3c is upper since the two wide diameter portions 3f is formed identical shapes and sizes
It is also equal to state depth.Therefore, the central portion of the centerline direction of through hole 3e is abutted with the cylindrical portion 4d of pinching screw 4.Therefore,
Cutting tip 3 can be balancedly pressed on the thickness direction (left and right directions in Fig. 2) of insert main body 3b, to will cut
Paring blade 3 is more stably mounted in blade mounting base 2.In addition, the barrel surface of through hole 3e is in the center line side of through hole 3e
The preferred scope of upward length is different according to the thread size of pinching screw 4.For example, clamping as in the present embodiment
In the case that the thread size of screw 4 is M8, the above-mentioned length of the barrel surface of through hole 3e is preferably the thickness of vane body 3b
The 10~50% of (the distance between two side 3c), more preferably 20~40%, but not limited to this.
In addition, in these present embodiments, it is expanding from being formed with the side 3c of vane body 3b of wide diameter portion 3f
The depth of portion 3f is greater than expanding amount of the wide diameter portion 3f relative to the radial direction of the center line of through hole 3e.Therefore, it can prevent
The wall thickness of vane body 3b in the opening portion periphery of through hole 3e around wide diameter portion 3f is excessively reamed, so as to anti-
It only generates to cut on vane body 3b due to the pressing of pinching screw 4 and damages such situation.
Moreover, because the wide diameter portion 3f in present embodiment has with the side side 3c for having wide diameter portion 3f towards opening
And gradually expanding conical surface-shaped inner peripheral surface, the conical surface-shaped inner peripheral surface, therefore will not centered on the center line of through hole 3e
Hinder the bending of pinching screw 4.On the other hand, due to can the side opposite with side 3c, in wide diameter portion 3f with
The part that the part of through hole 3e abutted for cylindrical portion 4d is adjacent is (adjacent with the barrel surface of through hole 3e in wide diameter portion 3f
Part) ensure the wall thickness of biggish vane body 3b, therefore can also be prevented securely from vane body 3b cut damage etc..But
It's not limited to that for the shape of wide diameter portion 3f, and wide diameter portion 3f can also have circular bottom surface as described above and with through hole
Cylinder planar inner peripheral surface centered on the center line of 3e, i.e. through hole 3e can also be formed as with the level poroid.
Then, Fig. 3 and Fig. 4 is ZZ cross-sectional view indicating second and third embodiment of the invention, being equivalent in Fig. 1
Figure, to Fig. 1 and second embodiment shown in Figure 2 common part use identical appended drawing reference.Wherein, in Fig. 3
Shown in second embodiment, the wide diameter portion 3f of cutting tip 3 is only formed in court in two side 3c of vane body 3b
To on the opening portion of the through hole 3e of the side 3c pressed by the first mounting base wall surface 2a for being formed with reference for installation hole 5, clamp
The cylindrical portion 4d of screw 4 and from wide diameter portion 3f to vane body 3b by the second mounting base wall surface 2b press side 3c
Through hole 3e inner peripheral surface abut.That is, through hole 3e is constructed by barrel surface and wide diameter portion 3f, wherein the barrel surface is by the
The side 3c upper opening of two mounting base wall surface 2b pressing, wide diameter portion 3f is on the side 3c pressed by the first mounting base wall surface 2a
It is open and there is the internal diameter greater than barrel surface.
As the second embodiment or above-mentioned first embodiment, in two side 3c in vane body 3b,
At least in the opening portion of the through hole 3e towards the side 3c pressed by the first mounting base wall surface 2a for being formed with reference for installation hole 5
In the case where being formed with above-mentioned wide diameter portion 3f, the cylindrical portion 4d of pinching screw 4 is in the side pressed by the first mounting base wall surface 2a
The face side 3c will not be contacted with through hole 3e.Therefore, because when continuing to be screwed into pinching screw 4, in through hole 3e and cylindrical portion 4d
Between ensure sufficient gap, can be avoided part towards 1 front end side of tool body in the outer peripheral surface of cylindrical portion 4d and pass through
Through-hole 3e contact.Therefore, it can prevent due to this contact that vane body 3b is rotated centered on through hole 3e and generates installation
Runout accuracy error.
On the other hand, in third embodiment shown in Fig. 4, the wide diameter portion 3f in the through hole 3e of cutting tip 3 exists
It is only formed in two side 3c of vane body 3b towards the second installation for forming recessed coniform hole 7 by tool body 1
On the opening portion of the through hole 3e of the side 3c of seat wall surface 2b pressing.In the third embodiment, the cylindrical portion of pinching screw 4
Through hole 3e 4d and the side 3c pressed by the first mounting base wall surface 2a from wide diameter portion 3f to vane body 3b
Inner peripheral surface abuts.That is, through hole 3e is constructed by barrel surface and wide diameter portion 3f, wherein the barrel surface is by the first mounting base wall surface
The side 3c upper opening of 2a pressing, wide diameter portion 3f is in the side 3c upper opening pressed by the second mounting base wall surface 2b and has big
In the internal diameter of barrel surface.
As the third embodiment or above-mentioned first embodiment, in two side 3c in vane body 3b,
At least towards by the second mounting base wall surface 2b pressing opposite with the first mounting base wall surface 2a in reference for installation hole 5 is formed with
It is entire at it with second embodiment or through hole 3e when the opening portion of the through hole 3e of side 3c is formed with above-mentioned wide diameter portion 3f
Compared with the case where being abutted in length with cylindrical portion 4d (the case where not formed wide diameter portion 3f), it can make curved because of pinching screw 4
The bent and cylindrical portion as datum clamp face for being located proximate to pinching screw 4 that the outer peripheral surface of cylindrical portion 4d is contacted with through hole 3e
One end side (side external thread part 4a) outer peripheral surface of 4d.Therefore, even if the amount of bow of pinching screw 4 is identical, can also reinforce with
The one end side outer peripheral surface is point action in the pressing force on the position that cylindrical portion 4d is contacted with through hole 3e, and can be incited somebody to action
Cutting tip 3 is fixed on strongerly in blade mounting base 2.Moreover, because in pinching screw 4, substantially curved side is formed
There is wide diameter portion 3f, therefore amount of bow itself is also larger, can further firmly fix cutting tip 3.
In addition, the rotational trajectory about the cutting edge 3a to cutting tip 3 is at these first into third embodiment
Hemispherical indexable insert blade type ball end mill is illustrated using situation of the invention, but can also be to being both indexable
For example following square toes slotting cutter or radius end mill of blade type slotting cutter is with the application of the invention, wherein, the square toes slotting cutter
It is cutting edge by being connected along the shear blade extended with axes O generally perpendicular direction and with the outer circumference end (diameter is held outward) of the shear blade
And the slotting cutter that the rotational trajectory rotated around axes O is constructed in the peripheral edge of the cylinder planar centered on axes O, the arc head
Slotting cutter is the slotting cutter that the basil of arc-shaped is formed on the corner that these peripheral edges are intersected with shear blade.Further, it is also possible to
With the application of the invention, it for example can also be to the indexable insert blade type drill bit application present invention to the cutting element other than slotting cutter.
Industrial availability
Indexable insert blade type cutting element according to the present invention can make the pressing force of cutting tip stabilized while make
Pinching screw is readily bent, and can prevent the cutting tip offset movement when tightening.
Description of symbols
1 tool body
2 blade mounting bases
2a, 2b mounting base wall surface
2c mounting base bottom surface
3 cutting tips
3a cutting edge
3b vane body
The side 3c
3d takes a seat face
3e through hole
3f wide diameter portion
4 pinching screws
4a external thread part
The head 4b
4c connecting hole
4d cylindrical portion
5 reference for installation holes
5a datum clamp face
6 threaded holes
7 recessed coniform holes
The coniform supporting surface of 7a
7b long hole portion
The axis of O tool body 1
The center line of L1 threaded hole 6
The center line of the coniform supporting surface 7a of L2
Claims (4)
1. a kind of indexable insert blade type cutting element, cutting tip passes through the slit for being seated at the front end for being formed in tool body
It is clamped in the blade mounting base of shape and by pinching screw, so that the cutting tip is detachably installed on the blade installation
On seat, wherein the cutting tip has the vane body for being formed with cutting edge, the spy of the indexable insert blade type cutting element
Sign is,
Be formed in the vane body: face of taking a seat can be abutted with the mounting base bottom surface of the blade mounting base；Perforation
Hole penetrates through the vane body so that the pinching screw is inserted；With two sides, which opens on described two sides
Mouthful,
In the two mounting base wall surfaces relative to each other for pressing the blade mounting base of described two sides, installed at one
It is formed with reference for installation hole and threaded hole on seat wall surface, and is formed in the tool body front end side of another mounting base wall surface
Coniform supporting surface, the coniform supporting surface there is the center line relative to the threaded hole and to tool body rear end lateral deviation
The center line of the heart,
It is formed with the external thread part being screwed into the threaded hole in the one end of the pinching screw, is formed with head in the other end
Portion, the head have can with the conical surface-shaped outer peripheral surface of the coniform supporting surface sliding contact,
Be formed with cylindrical portion between the external thread part and the head, the cylindrical portion by described the one of the pinching screw
The outer peripheral surface of end side is abutted with the inner peripheral surface of the tool body front end side in the reference for installation hole, and the ratio of the cylindrical portion
After the tool body in the outer peripheral surface of the other end side and the through hole of the vane body is more leaned in the reference for installation hole
The inner peripheral surface of end side abuts,
In at least one of the opening portion of described two sides towards the vane body of the through hole of the vane body
Opening portion is formed with wide diameter portion, and the internal diameter of the wide diameter portion is greater than supporting in the through hole with the cylindrical portion of the pinching screw
The internal diameter of the part connect,
The depth of the wide diameter portion from being formed with the side of the vane body of the wide diameter portion is greater than the wide diameter portion phase
For the expanding amount of the radial direction of the center line of the through hole.
2. indexable insert blade type cutting element according to claim 1, which is characterized in that
In two sides of the vane body, at least towards described in the side pressed as one mounting base wall surface
The opening portion of through hole is formed with the wide diameter portion.
3. indexable insert blade type cutting element according to claim 1, which is characterized in that
In two sides of the vane body, at least in the institute towards the side by the pressing of another described mounting base wall surface
The opening portion for stating through hole is formed with the wide diameter portion.
4. indexable insert blade type cutting element according to any one of claims 1 to 3, which is characterized in that the expansion
Diameter portion has: bottom surface, parallel with the side that the wide diameter portion is open and in centered on the center line of the through hole
Annular shape；And inner peripheral surface, it is gradually expanding with the side being open from the bottom surface towards the wide diameter portion and be in
Conical surface-shaped centered on the center line of the through hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015234767 | 2015-12-01 | ||
| JP2015-234767 | 2015-12-01 | ||
| PCT/JP2016/084270 WO2017094531A1 (en) | 2015-12-01 | 2016-11-18 | Replaceable cutting edge cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108290234A CN108290234A (en) | 2018-07-17 |
| CN108290234B true CN108290234B (en) | 2019-07-12 |
Family
ID=58797266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680030152.3A Active CN108290234B (en) | 2015-12-01 | 2016-11-18 | Indexable insert blade type cutting element |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6447746B2 (en) |
| KR (1) | KR102025534B1 (en) |
| CN (1) | CN108290234B (en) |
| WO (1) | WO2017094531A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220143710A1 (en) * | 2019-02-20 | 2022-05-12 | Kyocera Corporation | Holder, cutting tool, method for manufacturing machined product, and method for collecting data |
| CN111761111B (en) * | 2019-04-01 | 2023-03-21 | 京瓷株式会社 | End mill |
| JP6955682B1 (en) * | 2021-01-13 | 2021-10-27 | 株式会社タンガロイ | Tool body |
| CN113245604B (en) * | 2021-05-07 | 2022-10-25 | 赣州澳克泰工具技术有限公司 | Milling cutter and cutter bar thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11239911A (en) * | 1997-12-26 | 1999-09-07 | Hitachi Tool Eng Ltd | Throwaway cutting tool |
| JP2008183661A (en) * | 2007-01-30 | 2008-08-14 | Kyocera Corp | Cutting insert, cutting tool using it, and manufacturing method of cutting insert |
| JP2010089237A (en) * | 2008-10-10 | 2010-04-22 | Tungaloy Corp | Throwaway chip and its clamp mechanism |
| CN102781613A (en) * | 2010-03-10 | 2012-11-14 | 株式会社钨钛合金 | Clamp assistant member and cutting tool including clamp assistant member |
| CN103717335A (en) * | 2011-09-09 | 2014-04-09 | 三菱综合材料株式会社 | Exchangeable head cutting tool |
| CN104053519A (en) * | 2012-03-26 | 2014-09-17 | 三菱综合材料株式会社 | Replaceable head cutting tool |
| US9352401B2 (en) * | 2011-03-03 | 2016-05-31 | Mitsubishi Hitachi Tool Engineering, Ltd. | Indexable ball end mill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4628113B2 (en) * | 2005-01-13 | 2011-02-09 | オーエスジー株式会社 | Throw-away cutting tool and throw-away tip |
-
2016
- 2016-11-18 KR KR1020177035792A patent/KR102025534B1/en active IP Right Grant
- 2016-11-18 JP JP2017553775A patent/JP6447746B2/en active Active
- 2016-11-18 WO PCT/JP2016/084270 patent/WO2017094531A1/en active Application Filing
- 2016-11-18 CN CN201680030152.3A patent/CN108290234B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11239911A (en) * | 1997-12-26 | 1999-09-07 | Hitachi Tool Eng Ltd | Throwaway cutting tool |
| JP2008183661A (en) * | 2007-01-30 | 2008-08-14 | Kyocera Corp | Cutting insert, cutting tool using it, and manufacturing method of cutting insert |
| JP2010089237A (en) * | 2008-10-10 | 2010-04-22 | Tungaloy Corp | Throwaway chip and its clamp mechanism |
| CN102781613A (en) * | 2010-03-10 | 2012-11-14 | 株式会社钨钛合金 | Clamp assistant member and cutting tool including clamp assistant member |
| US9352401B2 (en) * | 2011-03-03 | 2016-05-31 | Mitsubishi Hitachi Tool Engineering, Ltd. | Indexable ball end mill |
| CN103717335A (en) * | 2011-09-09 | 2014-04-09 | 三菱综合材料株式会社 | Exchangeable head cutting tool |
| CN104053519A (en) * | 2012-03-26 | 2014-09-17 | 三菱综合材料株式会社 | Replaceable head cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017094531A1 (en) | 2017-06-08 |
| JP6447746B2 (en) | 2019-01-16 |
| JPWO2017094531A1 (en) | 2018-03-08 |
| KR20180005707A (en) | 2018-01-16 |
| KR102025534B1 (en) | 2019-09-26 |
| CN108290234A (en) | 2018-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108290234B (en) | Indexable insert blade type cutting element | |
| US6530728B2 (en) | Rotatable tool having a replaceable tip at the chip removing free end of the tool | |
| US8534966B2 (en) | Cutting tool having releasably mounted self-clamping cutting head | |
| US9737935B2 (en) | Turning insert | |
| US9233426B2 (en) | Octagonal cutting insert having edge portion with variable wedge angle, and cutting tool | |
| US20090067942A1 (en) | Indexable drill | |
| US10173271B2 (en) | Tool shank with head support surface having central recess provided with resiliently displaceable abutment portions | |
| CN107614173B (en) | Indexable insert blade type cutting element | |
| CN109311096A (en) | For mach cutting tip and cutter | |
| US20170341160A1 (en) | Cutting insert and drilling tool | |
| US20130266384A1 (en) | Left-Handed and Right-Handed Cutting Tool | |
| WO2015129770A1 (en) | Cutting insert, tool body, and cutting tool | |
| US20140360333A1 (en) | Hard-metalcutting blade arrangement for chucking in a round receiver | |
| JP2003145320A (en) | Throwaway tip, and clamp mechanism for the same | |
| CN107073605B (en) | Cutter body, insert supporting mechanism and cutting tool | |
| CN110270851A (en) | The group of machining tool connects center location structure | |
| JP5971577B2 (en) | Blade adjustment mechanism | |
| JP2010076033A (en) | Rotary cutting tool | |
| JPH11239911A (en) | Throwaway cutting tool | |
| CN108856834B (en) | Cutting tool | |
| JP2008207269A (en) | Cutting tool and cutting method | |
| JP2548084Y2 (en) | Drill holder | |
| JP2003291023A (en) | Throwaway tip and throwaway type ball end mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |