JP2004058193A - Mechanism for mounting insert tip and cutting tool, and method for mounting and dismounting insert tip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the workability when changing an insert tip by preventing the falling of the insert tip from a tip fixing seat when the insert tip is mounted and dismounted. <P>SOLUTION: A tilting surface 14, which tilts downward with the distance to a base end side of a tool holder 10, is formed at the base end side of a tool holder 10 apart from a tip mounting seat 11. A coil spring 70 is arranged so as to urge a clamp piece 50 to separate from the tool holder 10. A tilting surface 52, which is able to abut against the tilting surface 14, is formed at the lower surface of the base side of the clamp piece 50, and also a projection 51, which engages with the hole 31 of the insert tip 30, is formed at the lower surface of the tip end, and clearances 56, 57 are formed between a bolt 60 and the clamping piece 50. When the clamping piece 50 has been separated from the tool holder 11, clearance 65 is formed between the tilting surface 14 and the tilting surface 52. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mounting mechanism of an insert tip mounted on a top surface of a tip portion of a tool holder, a cutting tool having an insert tip mounted on a top surface of a tip portion of a tool holder, and a method of mounting and removing an insert tip.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various types of cutting tools in which an insert tip is detachably fixed to an upper surface of a tip portion of a tool holder have been used. As a mechanism for attaching such an insert tip to the tool holder, for example, an insert tip is arranged on a tip attachment seat formed on the upper surface of the tip of the tool holder, and a clamp piece for suppressing the insert tip is arranged thereon. In some cases, the insert piece is pressed against the bottom surface and the side surface of the chip mounting seat by pressing the clamp piece by a pressing member and fixed.
[0003]
An example of such an insert tip mounting mechanism is described in JP-A-3-92206. In the mounting mechanism (clamp mechanism) described in this publication, an inclined surface is formed on the upper surface of the tool holder, which is gradually inclined toward the lower surface as the distance from the tip mounting seat side to the proximal end side of the tool holder increases. ing. A sliding surface is formed on the lower surface of the clamp piece on the base end side to be in contact with the inclined surface of the tool holder, and a projection engaging with a hole of an insert tip (throwaway tip) is formed on the lower surface of the distal end of the clamp piece. Is formed. In addition, a structure is provided between the clamp piece and the tool holder, in which an elastic member is mounted to separate the clamp piece from the tool holder and to urge the clamp piece toward the chip mounting seat.
[0004]
[Problems to be solved by the invention]
However, in the conventional insert tip mounting mechanism, when exchanging the insert tip, it is necessary to completely remove the projection formed on the lower surface of the distal end of the clamp piece from the hole of the insert tip. At this time, since the insert tip is in a free state in which it is not engaged anywhere, there is a possibility that the insert tip may drop from the tip mounting seat by carelessness of the operator.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem, and when the insert tip is attached and detached, the insert tip is prevented from being accidentally dropped from the tip mounting seat. It is an object of the present invention to provide an insert tip mounting mechanism capable of improving the workability when mounting or removing the insert tip.
[0006]
Further, the present invention can prevent the insert tip from being accidentally dropped from the tip mounting seat when mounting and removing the insert tip, and can improve workability when attaching or removing the insert tip. An object of the present invention is to provide a cutting tool that can perform the cutting.
[0007]
Still further, the present invention is directed to an insert tip that can prevent the insert tip from being accidentally dropped from the tip mounting seat when mounting the insert tip, and can improve workability when attaching the insert tip. It is intended to provide an attachment method.
[0008]
In addition, the present invention provides an insert tip that can prevent the insert tip from being accidentally dropped from the tip mounting seat when removing the insert tip, and can improve the workability when removing the insert tip. The purpose is to provide a removal method.
[0009]
[Means for Solving the Problems]
In order to achieve this object, according to the present invention, a tip mounting seat is formed on an upper surface of a tip end portion of a tool holder, and a clamp member is pressed by a pressing member to press the insert chip against the bottom and side surfaces of the tip mounting seat to be fixed. A first inclined surface that is gradually inclined downwardly toward the base end side from the tip attachment seat of the tool holder as the distance from the base end side increases. An urging member for urging the clamp piece in a direction to separate the clamp piece from the tool holder, and forming a second inclined surface capable of contacting the first inclined surface on a base-side lower surface of the clamp piece. At the same time, a projection engaging with the hole of the insert tip was formed on the lower surface on the tip side, a first gap was formed between the pressing member and the clamp piece, and the clamp piece was separated from the tool holder. To, there is provided a mounting mechanism of the insert chips forming a second gap between the first inclined surface and the second inclined surface.
[0010]
In the mounting mechanism of the insert tip, when the clamp piece is separated from the tool holder, a second gap is formed between the first inclined surface and the second inclined surface. The clamp piece can be pushed downward by using the button. Only by this operation, the engagement between the projection of the clamp piece and the hole of the insert tip is released. That is, until the clamp piece is pushed downward, the engagement between the protrusion of the clamp piece and the hole of the insert tip is maintained, so that the insert tip can be prevented from being accidentally dropped. Therefore, the operability at the time of attaching or removing the insert tip can be improved.
[0011]
The clamp piece has a pressing portion on the upper surface corresponding to the second inclined surface, and when the clamp piece is separated from the tool holder and the pressing portion is pressed, the engagement between the projection and the hole of the insert tip is made. Can be configured to be canceled.
[0012]
Further, the pressing member is provided between the projection of the clamp piece and a second inclined surface and is provided on the tool holder. When the clamp piece is separated from the tool holder and presses the pressing portion, The first inclined surface and the second inclined surface are close to each other, and the tip of the clamp piece is further separated from the insert tip with the pressing member as a fulcrum, whereby the engagement between the protrusion and the hole of the insert tip is released. It can be configured as follows.
[0013]
Further, the biasing member is a coil spring disposed so as to penetrate the pressing member. When the clamp piece is separated from the tool holder and the pressing portion is pressed, the tip of the clamp piece is pressed. The clamp piece can be biased so as to be separated from the insert tip with the member as a fulcrum.
[0014]
The present invention also provides a tool holder having a tip mounting seat formed on the top surface of a tip, an insert tip removably fixed to the tip mounting seat, and pushing the insert tip against the bottom and side surfaces of the tip mounting seat. A cutting tool comprising: a clamp piece to be fixed by pressing; a pressing member that presses the clamp piece; and a biasing member that biases the clamp piece in a direction to separate the clamp piece from the tool holder. A base surface closer to the base end than the tip mounting seat, a first inclined surface that is gradually inclined downward as the space is closer to the base end, wherein the clamp piece is formed on a base lower surface and A second inclined surface capable of contacting the first inclined surface, a projection formed on the lower surface on the distal end side and engaging with a hole of the insert tip, and a first inclined surface between the pressing member and the clamp piece; Form a gap , When moved away the clamping piece from the tool holder, there is provided a cutting tool obtained by forming a second gap between the first inclined surface and the second inclined surface.
[0015]
In the cutting tool having this configuration, when the clamp piece is separated from the tool holder, a second gap is formed between the first inclined surface and the second inclined surface. The clamp piece can be pushed downward using the gap. Only by this operation, the engagement between the projection of the clamp piece and the hole of the insert tip is released, so that the engagement between the projection of the clamp piece and the hole of the insert tip is maintained until the clamp piece is pushed downward. . Therefore, it is possible to prevent the insert tip from dropping carelessly. Therefore, the operability at the time of attaching or removing the insert tip can be improved.
[0016]
The clamp piece of the cutting tool has a pressing portion on the upper surface corresponding to the second inclined surface, and when pressing the pressing portion by separating the clamp piece from the tool holder, the protrusion and the hole of the insert tip are removed. Can be configured to be disengaged.
[0017]
Further, the present invention is a method of mounting the insert tip on the tip mounting seat of the tool holder, wherein the step of temporarily fixing the clamp piece to the tool holder by the pressing member, The temporarily fixed upper surface of the clamp piece corresponding to the second inclined surface is pressed downward to bring the second inclined surface closer to the first inclined surface, and the lower surface of the tip end of the clamp piece and the chip mounting seat are pressed. A step of forming a space for inserting an insert chip therebetween, a step of inserting the insert chip into the formed space, and placing the insert chip on a chip mounting seat, and inserting the insert chip into the chip mounting seat. Releasing the downward pressing of the clamp piece after placing, and engaging the projection of the clamp piece with the hole of the insert tip; Pressing the clamp piece against the bottom surface and side surface of the tip mounting seat and fixing the clamp piece against the urging force of the urging member by the pressing member. is there.
[0018]
According to this method of attaching the insert tip, it is possible to prevent the insert tip from accidentally dropping from the tool holder, and it is possible to improve the operability of attaching the insert tip.
[0019]
Still further, the present invention is a method of pressing the clamp piece by the pressing member and removing the insert tip attached to the tip mounting seat of the tool holder from the tool holder, comprising: Loosening the pressure on the block, separating the clamp block from the tool holder within a range in which the engagement between the projection of the clamp block and the hole of the insert chip is maintained by the biasing force of the biasing member, Forming a space between the inclined surface and the second inclined surface of the clamp piece, and pressing an upper surface corresponding to the second inclined surface of the clamp piece downward, and pressing the first inclined surface on the first inclined surface. Disengaging the projection of the clamp piece from the hole of the insert tip by displacing the tip of the clamp piece further away from the tool holder; The insert tip engagement is released, a step of removing from the tip mounting seat, there is provided a detaching method of the insert chips with.
[0020]
According to the method for removing an insert tip, it is possible to prevent the insert tip from being accidentally dropped from the tool holder, and it is possible to improve the operability of removing the insert tip.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a preferred embodiment of the present invention will be described with reference to the drawings.
[0022]
FIG. 1 is a cross-sectional view showing a state in which an insert tip is attached to a tool holder according to the present embodiment, FIG. 2 is a cross-sectional view of the tool holder according to the present embodiment, and FIG. FIGS. 4 and 5 are cross-sectional views showing a state in which a clamp piece is temporarily fixed to a tool holder, FIGS. 4 and 5 are cross-sectional views showing a state in which an insert tip is being mounted or removed from a tool holder according to the present embodiment, and FIG. FIG. 7 is a perspective view of the clamp piece shown in FIG. 6 as seen from below.
[0023]
In this embodiment, the side to which the insert tip is attached will be referred to as the “distal end” and the opposite side will be referred to as the “base end”.
[0024]
As shown in FIGS. 1 to 7, a cutting tool 1 having an insert tip mounting mechanism according to the present embodiment includes an insert tip detachably fixed to a tool holder 10 and a tip mounting seat 11 of the tool holder 10. 30, a clamp piece 50 for fixing the insert chip 30 by pressing it against the bottom surface 11A and the side surface 11B of the chip mounting seat 11, a bolt 60 as a pressing member for pressing the clamp piece 50, and a tool holder And a coil spring 70 as an urging member for urging in a direction away from the coil spring 70.
[0025]
A tip mounting seat 11 defined by a bottom surface 11A and a side surface 11B is formed at a tip corner of the upper surface of the tool holder 10. A screw hole 11C for fixing the sheet is opened in the bottom surface 11A. In addition, a relief 19 is formed in the upper portion of the side surface 11B to prevent the base end corner of the insert tip 30 from coming into contact. A sheet 12 is placed on the chip mounting seat 11, and a screw 13 is screwed into a screw hole 12C formed through the sheet 12 at a substantially central portion thereof and a sheet fixing screw hole 11C opened in the bottom surface 11A. By doing so, the seat 12 is fixed to the chip mounting seat 11.
[0026]
On the other hand, on the base end side of the upper surface of the tool holder 10, there is formed an inclined surface 14 which is gradually inclined downward as the distance from the front end side to the base end side increases. A concave portion 15 is formed on the base end side of the inclined surface 14 so as to be continuous with the inclined surface 14, and the base end side is a locking wall 16.
[0027]
A bolt fixing hole 17 into which the bolt 60 is screwed is opened between the chip mounting seat 11 and the inclined surface 14. The upper portion of the bolt fixing hole 17 has a larger diameter, and a coil spring 70 is arranged at the step 18 formed to define the larger diameter.
[0028]
The insert chip 30 has a plate shape of a substantially rectangular plane, and a mounting hole 31 is formed in a substantially central portion thereof so as to penetrate therethrough. The base end side surface of the insert chip 30 has a shape complementary to the side surface 11B of the tool holder 10, and is pressed against the bottom surface 11A of the chip mounting seat 11 via the sheet 12 by a clamp piece 50 described later in detail. And is pressed against the side surface 11B of the chip mounting seat 11 to be fixed.
[0029]
The clamp piece 50 has an elongated substantially pentagonal shape in which the base end side is substantially square in plan view, and the front end side is continuously formed in this substantially square shape, and is substantially triangular in shape as it goes to the front end. . On the lower surface of the distal end portion of the clamp piece 50, a columnar projection 51 that engages with the mounting hole 31 of the insert tip is formed. On the other hand, an inclined surface 52 that can contact the inclined surface 14 of the tool holder 10 is formed on the lower surface of the base end portion of the clamp piece 50. Further, a portion facing (corresponding to) the inclined surface 52 on the upper surface of the clamp piece 50 is a pressing portion 53. At a substantially central portion of the clamp piece 50, a bolt hole 54 through which a bolt 60 penetrates is formed. The upper portion of the bolt hole 54 has a larger diameter than the lower portion, and the stepped portion 55 formed to define the large diameter has a lower surface of the head of the bolt 60 when the bolt 60 is inserted. Is mounted. The large diameter portion of the bolt hole 54 is formed to be slightly larger than the diameter of the head of the bolt 60, and the inner wall of the large diameter portion of the bolt hole 54 and the outer peripheral surface of the head of the bolt 60 inserted therein are formed. A gap 56 is formed therebetween. The small diameter portion of the bolt hole 54 is formed slightly larger than the diameter of the screw portion of the bolt 60, and is formed between the inner wall of the small diameter portion of the bolt hole 54 and the outer peripheral surface of the screw portion of the bolt 60 inserted therein. A gap 57 is formed. The clamp piece 50 is attached to the tool holder 10 by loosely inserting the bolt 60 from above the bolt hole 54 and screwing the screw portion of the bolt 60 into the bolt fixing hole 17 of the tool holder 10. A coil spring 70 mounted on the step 18 of the bolt fixing hole 17 is mounted on the outer periphery of the bolt 60.
[0030]
When attaching the insert tip 30 to the tool holder 10 (see FIG. 2) according to the present embodiment, first, the bolt 60 is passed through the bolt hole 54 of the clamp piece 50, and the penetrated bolt 60 is inserted into the tool holder 10 Into the bolt fixing hole 17 of At this time, a coil spring 70 mounted on the step 18 of the bolt fixing hole 17 is attached to the outer periphery of the bolt 60. Further, gaps 56 and 57 are formed between the inner wall of the bolt hole 54 and the bolt 60 as described above.
[0031]
Next, the bolt 60 is lightly tightened, and the clamp piece 50 is temporarily fixed to the tool holder 10 as shown in FIG. At this time, the clamp piece 50 is in a state of being pushed upward by the coil spring 70 and is separated from the tool holder 10. That is, a gap 65 is formed between the inclined surface 14 of the tool holder 10 and the inclined surface 52 of the clamp piece 50.
[0032]
Next, from this state, as shown in FIG. 4, the pressing portion 53 of the clamp piece 50 is pushed downward (in the direction of the arrow X shown in FIG. 4), and the inclined surface 52 of the clamp piece 50 is tilted. Press against surface 14. At this time, since the gaps 56 and 57 are formed between the bolt 60 and the clamp piece 50 and the concave portion 15 is formed continuously to the inclined surface 14, the clamp piece 50 4 with the bolt 60 as a fulcrum, the tip of the clamp piece 50 rises (is lifted) upward (in the direction of the arrow Yu shown in FIG. 4). Thereby, a space for inserting the insert chip 30 is formed between the upper surface of the sheet 12 and the clamp piece 50.
[0033]
Next, in this state, the insert chip 30 is inserted in the direction of the arrow Zi shown in FIG. 4, and the side surface on the base end side of the insert chip 30 is brought into contact with the side surface 11B of the chip mounting seat 11. Next, when the pressing portion 53 of the clamp piece 50 is released, the distal end of the clamp piece 50 is lowered downward (in the direction of the arrow Yd shown in FIG. 4), and the clamp is inserted into the mounting hole 31 of the insert tip 30 as shown in FIG. The projection 51 of the piece 50 is inserted, and the projection 51 engages with the mounting hole 31 of the insert chip 30. At this time, the clamp piece 50 is temporarily fixed to the tool holder 10, but since the projection 51 is engaged with the mounting hole 31 of the insert tip 30, the insert tip 30 is inadvertently moved from the tip mounting seat 11. Falling can be prevented.
[0034]
Thereafter, when the bolt 60 is tightened so as to move downward (in the direction of arrow A shown in FIG. 1) against the urging force of the coil spring 70, the inclined surface 52 of the clamp piece 50 is changed to the inclined surface 14 of the tool holder 10. It moves downward while sliding upward in the direction of arrow B shown in FIG. By this operation, the insert chip 30 is pulled in the direction of arrow C shown in FIG. 1 by the clamp piece 50 and pressed against the bottom surface 11A and the side surface 11B of the chip mounting seat 11 via the sheet 12, so that the chip mounting seat 11 is securely fixed.
[0035]
On the other hand, when removing the insert tip 30 from the tool holder 10, first, when the bolt 60 is loosened so as to move upward, the clamp piece 50 is pushed upward by the urging force of the coil spring 70, and the clamp piece 50 is Separate more. At this time, the bolt 60 is loosened to the extent that the engagement between the projection 51 of the clamp piece 50 and the mounting hole 31 of the insert tip 30 can be maintained (see FIG. 5). Therefore, at this point, the insert tip 30 is prevented from dropping from the tip mounting seat 11 carelessly.
[0036]
Next, in this state, as shown in FIG. 4, when the pressing portion 53 of the clamp piece 50 is pressed downward (in the direction of the arrow X shown in FIG. 4), the clamp piece 50 is With the fulcrum as its fulcrum, the tip thereof rises upward (in the direction of arrow Yu shown in FIG. 4). As a result, the projection 51 of the clamp piece 50 comes out of the mounting hole 31 of the insert chip 30 that has been mounted on the chip mounting seat 11 via the sheet 12, and the engagement between the two is released.
[0037]
Next, in this state, the insert tip 30 can be easily removed by pulling out the insert tip 30 in the direction of the arrow Zo shown in FIG.
[0038]
In this embodiment, the case where the sheet 12 is disposed on the chip mounting seat 11 has been described. However, the present invention is not limited to this, and the insert chip 30 is directly mounted on the chip mounting seat 11 without disposing the sheet 12. It may be configured as follows.
[0039]
Further, the shape of the insert tip 30 is not limited to that described in the present embodiment, and may be appropriately selected, for example, a polygon or a circle in plan view. In this case, the shape of the tip mounting seat 11 is It is formed according to the shape of the insert tip.
[0040]
In the present embodiment, the case where the bolt 60 is used as the pressing member has been described. However, the present invention is not limited to this, and the pressing member presses the clamp piece 50 to insert the insert chip 30 into the bottom surface 11A of the chip mounting seat 11. There is no particular limitation as long as it plays a role of pressing against the side surface 11B.
[0041]
Furthermore, in the present embodiment, the case where the coil spring 50 is used as the urging member has been described. However, the present invention is not limited to this, and the urging member urges the clamp piece 50 in a direction to separate from the tool holder 10. If it is possible, for example, an elastic member having another configuration can be arbitrarily selected.
[0042]
It should be noted that the present embodiment is an exemplification for describing the present invention, and the present invention is not limited to this embodiment. The present invention can be implemented in various forms without departing from the gist thereof.
[0043]
【The invention's effect】
As described above, according to the present invention, when the clamp piece is separated from the tool holder, the second gap is formed between the first inclined surface and the second inclined surface. Therefore, the clamp piece can be pushed downward using the second gap, and only by this operation, the engagement between the projection of the clamp piece and the hole of the insert tip is released. As a result, it is possible to prevent the insert tip from being accidentally dropped when the insert tip is replaced, and it is possible to improve the operability when replacing the insert tip.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state where an insert tip is attached to a tool holder according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the tool holder according to the embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a state where a clamp piece is temporarily fixed to the tool holder according to the embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a state in which an insert tip is being attached to or removed from the tool holder according to the embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a state in which an insert tip is being attached to or removed from the tool holder according to the embodiment of the present invention.
FIG. 6 is a perspective view of the clamp piece according to the embodiment of the present invention as viewed from above.
FIG. 7 is a perspective view of the clamp piece shown in FIG. 6 as viewed from below.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 cutting tool 10 tool holder 11 tip mounting seat 14, 52 inclined surface 30 insert tip 31 mounting hole 50 clamp piece 51 projection 53 pressing part 56, 57 gap 60 bolt 65 gap 70 coil spring

Claims (8)

An insert mounting mechanism in which a chip mounting seat is formed on a top surface of a tip end portion of a tool holder, and a clamp member is pressed by a pressing member to press and fix the insert chip against the bottom and side surfaces of the chip mounting seat. ,
On the base end side of the tip mounting seat of the tool holder, a first inclined surface that is gradually inclined downward as the distance from the base end side increases is formed, and the clamp piece is separated from the tool holder. A biasing member for biasing is provided,
A second inclined surface that can be brought into contact with the first inclined surface is formed on the lower surface on the proximal end side of the clamp piece, and a projection that engages with the hole of the insert tip is formed on the lower surface on the distal end side,
Forming a first gap between the pressing member and the clamp piece,
An insert tip mounting mechanism for forming a second gap between the first inclined surface and the second inclined surface when the clamp piece is separated from the tool holder. The clamp piece includes a pressing portion on an upper surface corresponding to the second inclined surface,
2. The insert tip mounting mechanism according to claim 1, wherein when the clamp piece is separated from the tool holder and the pressing portion is pressed, the engagement between the projection and the hole of the insert tip is released. The pressing member is provided between the projection of the clamp piece and a second inclined surface and provided on the tool holder,
When the clamp piece is separated from the tool holder and the pressing portion is pressed, the first inclined surface and the second inclined surface are close to each other, and the tip of the clamp piece is separated from the insert tip by using the pressing member as a fulcrum. The insert tip mounting mechanism according to claim 1 or 2, wherein the projection is further separated from the hole and the engagement between the protrusion and the hole of the insert tip is released. The urging member is a coil spring that is arranged to penetrate the pressing member,
The clamp piece is urged so that, when the clamp piece is separated from the tool holder and the pressing portion is pressed, the clamp piece is separated from the insert tip with the tip of the clamp piece being a fulcrum about the pressing member. Item 4. The mounting mechanism for an insert tip according to any one of Items 3. A tool holder having a tip mounting seat formed on the top surface of a tip, an insert tip removably fixed to the tip mounting seat, and a clamp piece for pressing and fixing the insert tip against the bottom and side surfaces of the tip mounting seat And a pressing member that presses the clamp piece, and a biasing member that urges the clamp piece in a direction to separate the clamp piece from the tool holder,
The tool holder has a first inclined surface that is gradually inclined downward as it moves away from the tip mounting seat toward the base end,
The clamp piece has a second inclined surface formed on the lower surface on the proximal end side and capable of abutting on the first inclined surface, and a projection formed on the lower surface on the distal side and engaged with a hole of the insert tip. And
Forming a first gap between the pressing member and the clamp piece,
A cutting tool comprising a second gap formed between the first inclined surface and the second inclined surface when the clamp piece is separated from the tool holder. The clamp piece includes a pressing portion on an upper surface corresponding to the second inclined surface,
6. The cutting tool according to claim 5, wherein when the clamp piece is separated from the tool holder and the pressing portion is pressed, the engagement between the projection and the hole of the insert tip is released. A method for mounting an insert tip according to claim 5 or claim 6 on a tip mounting seat of a tool holder according to claim 5 or claim 6, wherein the tool holder is mounted on the tool holder according to claim 5 or claim 6. A step of temporarily fixing the clamp piece according to claim 5 or 6 by a pressing member;
The upper surface corresponding to the second inclined surface of the temporarily fixed clamp piece is pressed downward to bring the second inclined surface closer to the first inclined surface, and the lower surface of the tip end of the clamp piece and the tip mounting Forming a space for inserting the insert tip between the seat and
A step of inserting an insert tip into the formed space and mounting the insert tip on a tip mounting seat,
After placing the insert chip on the chip mounting seat, release the downward pressing of the clamp piece, and engage the protrusion of the clamp piece with the hole of the insert chip,
After the engagement, by the pressing member, pressing the clamp piece against the bottom surface and the side surface of the tip mounting seat against the urging force of the urging member, and fixing the clamp piece;
A method of mounting an insert tip provided with. An insert tip mounted on the tip mounting seat of the tool holder according to claim 5 or 6, wherein the clamp member according to claim 5 or 6 is pressed by the pressing member according to claim 5 or 6. Is removed from the tool holder,
Loosening the pressing of the pressing member against the clamp piece, separating the clamp piece from the tool holder within a range in which the engagement between the projection of the clamp piece and the hole of the insert tip is maintained by the urging force of the urging member, Forming a space between the first inclined surface of the holder and the second inclined surface of the clamp piece;
Pressing the upper surface corresponding to the second inclined surface of the clamp piece downward, bringing the second inclined surface closer to the first inclined surface, further separating the tip of the clamp piece from the tool holder, Releasing the engagement between the projection of the clamp piece and the hole of the insert tip;
A step of removing the disengaged insert tip from the tip mounting seat;
Removal method of insert tip provided with.

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