JP2003245837A - Corrector for deflection of cutting edge of tool and tool holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To correct the deflection of a cutting edge of a tool by small force, in addition to stably keep high deflection accuracy, and to enables a correcting means of the deflection of the cutting edge to be easily applied to an existing product. <P>SOLUTION: A collet 40 for fitting and holding a shank 29a of a tool 29 into a chuck cylinder 34 of a holder body 31 has a disklike flange 42, and a deflection correcting screw 43 extending through the flange 42 in the direction parallel to the axial line of the shank 29a of the tool to reach a leading edge surface 34b is screwed to a plurality of peripheral portions of the flange 42. The screw 43 is moved in the direction of screw-in to control the pressing force of the screw 43 to the surface 34b of the cylinder 34, thereby causing a base 29a1 of the shank 29a to be elastically deformed in such a direction that the deflection of the cutting edge of the tool 29 approximates to zero and correcting the deflection of the cutting edge of the tool 29. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a cutting edge runout correction device and a cutting edge runout correction device capable of correcting the cutting edge runout of a cutting tool such as a burnishing reamer or a drill mounted on a spindle of a machine tool via a holder. It relates to a tool holder.

[0002]

2. Description of the Related Art In machine tool machining, in order to realize highly accurate machining, it is necessary to maintain the accuracy of mounting a cutting tool at high accuracy. In general, the accuracy of chucking a cutting tool with a tool holder is based on the runout accuracy of the tip that is a predetermined distance away from the chuck part of the cutting tool in the cutting edge direction. Is 3
~ 5 μm. That is, even if a highly accurate chuck is used for a tool holder such as a burnishing reamer or a drill, it is difficult to make the deflection of the cutting edge of the tool as close to zero as possible. Therefore, a tool holder that can correct the runout of the cutting edge of the tool has been proposed and put into practical use.

A conventional tool holder with a cutting edge shake correction mechanism will be described with reference to the drawings. FIG. 1 is a side view of a partly cutaway showing an example of a conventional tool holder with a blade runout correcting mechanism. In FIG. 1, the tool holder 1
Is a tapered shank portion 2 mounted on a spindle of a machine tool (not shown), a gripping flange 3 formed at a large diameter side end of the shank portion 2, and an end of the flange 3 opposite to the shank portion. Arbor 4 integrally provided with the same axis
A cutting tool 6 such as a drill is attached to the tip of the arbor 4 by a collet chuck 5.

Further, a step portion 4a having a diameter larger than that of the arbor 4 is formed at a connecting portion of the arbor 4 with the flange 3.
A rotary ring 7 which constitutes a blade edge shake correction mechanism is rotatably fitted to the step portion 4a, and a fixing bolt 8 penetrates in a radial direction at a portion of the rotary ring 7 facing the step portion 4a. The rotating ring 7 is screwed and can be fixed to the step portion 4a by the fixing bolt 8. further,
Blade run-out correcting screws 9 are screwed through at four positions in the circumferential direction facing the root portion of the arbor 4 of the rotating ring 7 so as to penetrate in the radial direction.

In such a tool holder 1, in order to correct the edge deflection of the cutting tool 6, the shank portion 2 of the tool holder 1 on which the cutting tool 6 is chucked is mounted on the spindle of the machine tool, and then the cutting is performed. The test indicator 10 is pressed against the outer peripheral surface of the tip of the tool 6 to measure the maximum difference in the readings of the test indicator 10 during the rotation of the spindle as the edge deflection of the cutting tool 6, and the edge deflection of the cutting tool 6 is determined from this measurement value. Detect the highest angular position. After that, the rotation of the main shaft is stopped and the rotary ring 7 is rotated, and one of the blade runout correction screws 9 is aligned with the root portion of the arbor 4 corresponding to the highest angular position of the blade runout, and the rotary ring is at this position. 7 is fixed with a fixing bolt 8. After that, by tightening the blade edge deflection correction screw 9 that matches the arbor root at the angular position where the blade edge deflection is highest,
The arbor 4 is elastically deformed in the tightening direction of the screw 9 and the misalignment of the cutting edge of the cutting tool 6 is adjusted while observing the test indicator 10 so that the deviation of the cutting edge approaches zero as much as possible. As a result, the runout of the cutting edge of the cutting tool 6 can be corrected.

Next, another example of a conventional tool holder with a cutting edge shake correction mechanism will be described with reference to FIG. FIG. 2 is a partial cutaway side view showing another example of a conventional tool holder with a blade edge shake correction mechanism. In FIG. 2, the tool holder 12 includes a tapered shank portion 13 mounted on a spindle of a machine tool (not shown), a gripping flange 14 formed at an end of the shank portion 13 on a large diameter side, An arbor 15 is provided integrally with the end of the flange 14 on the side opposite to the shank portion so as to match the axis, and a cutting tool 17 such as a drill is attached to the tip of the arbor 15 by a collet chuck 16.

Further, in FIG. 2, reference numeral 18 denotes a shake adjuster for correcting the shake of the cutting edge of the cutting tool 17 chucked by the collet chuck 16 on the tool holder 12, and the shake adjuster 18 of the arbor 15 is provided. A ring member 181 is detachably attached to the outer periphery of the tip portion and the outer periphery of the lock nut 161 of the collet chuck 16, and a push screw 182 screwed to the ring member 181 so as to penetrate the ring member 181 in the radial direction. I have it.

To correct the edge runout of the cutting tool 6 using such a runout adjuster 18, the shank portion 13 of the tool holder 12 to which the cutting tool 17 is chucked is mounted on the spindle of the machine tool to perform cutting. The test indicator 19 is pressed against the outer peripheral surface of the tip of the tool 17, and the maximum difference in reading of the test indicator 19 during rotation of the spindle is determined by the cutting tool 17
And the angular position where the deflection of the cutting edge of the cutting tool 17 is highest is detected from the measured value. After that, the rotation of the main shaft is stopped and the ring member 181 is rotated, and the push screw 182 is aligned with the outer peripheral portion of the lock nut 161 corresponding to the highest angular position of the blade edge runout, and the outer peripheral portion of the push screw 182 is By pressing in the direction of the arrow by tightening, the misalignment of the cutting edge of the cutting tool 17 is adjusted while observing the test indicator 19 so that the deviation of the cutting edge approaches zero as much as possible. This allows
The deflection of the cutting edge of the cutting tool 6 can be corrected. After the adjustment of the shake, the shake adjuster 18 is removed from the tool holder 12.

[0009]

However, in the tool holder 1 shown in FIG. 1, elastic deformation is applied to the arbor 4 with the root portion of the arbor 4 as a fulcrum by means of a blade runout correction mechanism provided at the root portion of the arbor 4. Since the tool is used to adjust the misalignment of the cutting edge of the tool, a large force is required to correct the deviation of the cutting edge, and as shown in FIG. 3, the deviation of the cutting edge of the tool 6 is 10 μm and is near the collet chuck 5. When the runout of the mouth is 2 μm, the center of rotation L of the cutting edge and the mouth
The misalignment from the cores is 5 μm and 1 μm, respectively. Therefore, as shown in FIG. 3, even if the deviation of the cutting edge of 10 μm is corrected to zero, the deviation of the mouth is 2 μm to 3 μm.
Becomes As a result, the runout of the mouth portion becomes large, rotational imbalance occurs in the holder body, and there is a problem that the hole diameter machining accuracy due to a reamer or the like is adversely affected. Further, in the tool holder 12 shown in FIG. 2, since the runout adjuster 18 is removed from the tool holder 12 after the runout of the cutting edge has been corrected, when the cutting edge whose bending angle has been corrected returns to the original runout position. However, there is a problem in that the shake correction position of the cutting edge cannot be stably maintained.

An object of the present invention is to enable the tool edge deflection to be corrected with a small force, to stably maintain a high deflection accuracy, and to easily apply the blade edge deflection correction means to existing products. An object is to provide a shake correction device and a tool holder using the same.

[0011]

In order to achieve the above object, the invention of claim 1 is a device for correcting the run-out of the cutting edge of a tool held by a tool holder, which is opposed to the tip end surface of the tool holder. And a support member that is coupled to the root portion of the shank portion of the tool that projects forward from the tip surface, and the support member is provided at a plurality of circumferential positions of the support member in parallel with the axis of the tool. A plurality of run-out correction screws screwed so as to reach the tip surface by penetrating in different directions, and the pressing force of the run-out correction screw against the tip surface is adjusted to adjust the root portion of the tool shank portion. Is configured to be elastically deformed in a direction in which the edge deflection of the tool approaches zero.

According to a second aspect of the present invention, in the tool edge deflection correcting device according to the first aspect, the shank portion of the tool is held by the tool holder via a collet, and the supporting member faces the tip end surface. Then, it is constituted by a collar portion provided at the tip of the collet. Claim 3
According to the invention of claim 1, in the tool edge deflection correcting device according to claim 1, the support member is configured separately from the tool holder and the tool, and the support member is detachably fixed to a shank portion of the tool. And

According to a fourth aspect of the present invention, there is provided a device for correcting a blade runout of a tool held by a tool holder, wherein the connecting member is provided so as to face a tip end surface of the tool holder, and the connecting member is provided. A tubular member whose one end is separably coupled, and which is swingably supported by an opening at the other end of the tubular member and is attachable to and detachable from the root portion of the shank portion of the tool that projects forward from the tip surface. A shake correction ring member fitted to
A plurality of shake correcting members screwed into a plurality of circumferential positions of the cylindrical member so as to penetrate the cylindrical member in the radial direction, and the tips thereof are engaged with the outer peripheral surface of the shake correcting ring member. A screw, and the runout correction ring member is pressed from the radial direction of the tool shank portion by the runout correction screw, and the pressing force is adjusted so that the tool tip shank is zero. It is characterized in that it is configured to be elastically deformed in a direction approaching.

According to a fifth aspect of the present invention, there is provided a device for correcting a blade runout of a tool held by a tool holder, wherein the connecting member is provided so as to face a tip end surface of the tool holder, and the connecting member is provided. A tubular member having one end separably coupled, a ring member rotatably supported in an opening at the other end of the tubular member around the axis of the tubular member, and the tool within the ring member. An eccentric cam arranged so as to circumscribe the outer peripheral surface of the shank portion, and an operating shaft that rotates while pressing the eccentric cam forwardly from the tip end surface to the root outer peripheral surface of the shank portion of the tool, The eccentric cam is rotated by the operation shaft to adjust the pressing force in the radial direction on the shank portion to elastically deform the root portion of the tool shank portion in a direction in which the tool edge runout approaches zero. did And wherein the door.

According to a sixth aspect of the present invention, in the tool edge deflection correcting device according to the fourth or fifth aspect, the shank portion of the tool is held by the tool holder via a collet, and the connecting member is the tip surface. And a collar portion provided at the tip of the collet so as to face the above.
According to a seventh aspect of the present invention, in the tool edge deflection correcting device according to the fourth or fifth aspect, the coupling member is configured separately from the tool holder and the tool, and the coupling member is detachably fixed to the shank portion of the tool. It is characterized by being done.

According to an eighth aspect of the present invention, there is provided a tool holder for detachably gripping a shank portion of a tool, the tool holder including a blade runout correction mechanism for correcting a blade runout of the tool, wherein the blade runout correction mechanism is A support member that is provided so as to face the tip surface of the tool holder and that is coupled to the root portion of the shank portion of the tool that projects forward from the tip surface, and the support members at a plurality of circumferential positions of the support member. Is provided in a direction parallel to the axis of the tool, and a plurality of runout correcting screws screwed to reach the tip end surface.

According to a ninth aspect of the present invention, there is provided a tool holder for detachably gripping a shank portion of a tool, the tool holder including a blade deflection correction mechanism for correcting the blade deflection of the tool. A coupling member provided to face the tip end surface of the tool holder, a tubular member having one end separably coupled to the coupling member, and a swingably supported at the other end opening of the tubular member, Further, a shake correcting ring member detachably fitted to a root portion of a shank portion of the tool projecting forward from the tip end surface, and the tubular member is radially provided at a plurality of circumferential positions of the tubular member. A plurality of shake correcting screws screwed so as to penetrate in the direction, and having a tip engaged with the outer peripheral surface of the shake correcting ring member.

According to a tenth aspect of the present invention, there is provided a tool holder for detachably gripping a shank portion of a tool, the tool holder including a blade runout correction mechanism for correcting a blade runout of the tool, wherein the blade runout correction mechanism is A coupling member provided to face the tip end surface of the tool holder, a tubular member having one end separably coupled to the coupling member, and an axis line of the tubular member in an opening at the other end of the tubular member. A rotatably supported ring member, an eccentric cam disposed inside the ring member so as to circumscribe the outer peripheral surface of the shank portion of the tool, and the eccentric cam projecting forward from the tip end surface. An operating shaft that rotates while being pressed against the outer peripheral surface of the root of the shank portion of the tool.

According to an eleventh aspect of the present invention, in the tool holder according to any one of the eighth to tenth aspects, the shank portion inserted into the spindle of the machine tool and the axis of the shank portion extend in line with one end of the shank portion. The chuck body is provided with a holder body having a chuck cylinder having a tapered surface on the outer peripheral surface, the diameter of which decreases toward the tip side, and a tightening cylinder for tightening the chuck cylinder from the outer peripheral surface side. It is characterized in that the shank portion of the tool, which has been reduced in diameter or restored by the tightening cylinder and fitted in the chuck cylinder, is detachably held directly or via the collet.

According to a twelfth aspect of the present invention, there is provided a tool holder for detachably gripping a shank portion of a tool, the holder main body having concentric tapered holes whose diameter decreases rearward from a tip end surface, and By moving the taper collet in the axial direction by screwing it into a taper collet that is detachably fitted in the taper hole and holds the shank part of the tool, and a male screw part formed on the outer periphery of the tip end part of the holder body. A tubular member for chucking and unchucking the shank portion of the tool, and a swingable support at the other end opening opposite to the screwing side of the tubular member, and detachable from the shank portion of the tool. Of the shake correcting ring member, and the tip of the shake correcting ring member is screwed into a plurality of circumferential positions of the tubular member so as to penetrate the tubular member in the radial direction. On the outer surface Together are a plurality of shake correcting screw has to press the correction ring member and the deflection from the radial direction of the tool shank portion by said shake correcting screws,
It is characterized in that the pressing force is adjusted to elastically deform the root portion of the tool shank portion in a direction in which the edge deflection of the tool approaches zero.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 (A) is a vertical sectional side view showing a first embodiment of a tool edge deflection correcting device and a tool holder provided with the same according to the present invention, and FIG. 4 (B) is 4- of FIG. 4 (A). It is a side view for explanation along a 4 line.

In FIG. 4A, a tool holder 3 for holding a cutting tool 29 such as a drill or a vanishing reamer.
0 has a holder body 31, and this holder body 31 is
A taper shank portion 32 inserted into a spindle of a machine tool (not shown), a flange portion 33 formed at an end portion on the large diameter side of the taper shank portion 32, and the flange portion 33.
From the end surface on the side opposite to the taper shank part of taper shank part 3
2 and a cylindrical chuck cylinder 34 having a tapered surface 34a formed on the outer peripheral surface of the tapered shank portion 32, the diameter of which decreases from the flange portion 33 toward the tip. I have it.

In FIG. 4A, reference numeral 35 denotes a roller holding cylinder which is loosely fitted around the outer circumference of the chuck cylinder 34. The roller holding cylinder 35 has a taper angle similar to that of the tapered surface 34a of the chuck cylinder 34. It is formed of a cylindrical body whose diameter decreases toward the tip. In addition, this roller holding cylinder 3
5 is held by a retaining ring 36 provided on the outer circumference of the tip end of the chuck cylinder 34 so as not to fall off from the chuck cylinder 34.

A large number of needle rollers 37, which are fitted in the roller holding cylinder 35 at a predetermined angle in the circumferential direction with respect to the axis of the roller holding cylinder 35, are arranged in the circumferential direction. In addition, each needle roller 37 is formed to have a diameter larger than the wall thickness of the roller holding cylinder 35, whereby each needle roller 37 protruding toward the inner peripheral surface side of the roller holding cylinder 35 is formed on the tapered surface 34 a of the chuck cylinder 34. The needle rollers 37 that are brought into contact with each other and project toward the outer peripheral surface of the roller holding cylinder 34 are brought into contact with the inner peripheral surface of a tightening cylinder 38 described later.

The tightening cylinder 38 is for reducing the diameter of the chuck cylinder 34 and tightly gripping a target tool, and has a needle roller 37 held by a roller holding cylinder 35 on the outer periphery of the chuck cylinder 34. Are fitted through. The inner peripheral surface of the tightening cylinder 38 is configured as a tapered cylindrical surface whose diameter decreases from the end facing the flange 33 to the tip. A retaining ring 39 that also serves as a seal is attached to the inner periphery of the proximal end of the tightening barrel 38 on the side of the flange portion 33. The retaining ring 39 that also serves as the seal contacts the outer peripheral surface of the chuck barrel 34. Thus, the sealing function is exerted, and the contact with the end surface of the roller holding cylinder 34 prevents the tightening cylinder 38 from falling off the chuck cylinder 34.

In FIGS. 4A and 4B, 40 is a collet for fitting and holding the shank portion 29a of the tool 29 into the chuck cylinder 34 of the holder body 31, and this collet 40 is provided in the chuck cylinder 34. It has a straight outer peripheral surface that can be fitted, and a plurality of slits 41 extending in the axial direction are formed in the circumferential direction. Also, the collet 4
0 is the tip surface of the tool holder 30, that is, the chuck cylinder 3
4 has a disk-shaped flange portion 42 formed so as to face the front end surface 34b at a portion protruding from the front end surface 34b. The collar portion 42 constitutes a support member that is coupled to the root portion of the shank portion 29a of the tool 29 described in the claims, and is provided at a plurality of circumferential positions of the collar portion 42, for example, 90 degrees from each other. At four distant locations, the collar portion 42 is penetrated in a direction parallel to the axis of the tool shank portion 29a, and the tip surface 34b is formed.
The shake correction screws 43 reaching the above are respectively screwed. The shake correcting screw 43 is operated in the screwing direction to adjust the pressing force of the shake correcting screw 43 against the tip end surface 34b of the chuck cylinder 34 so that the root portion 29a1 of the tool shank portion 29a is moved to the tool 29. This is for elastic deformation in a direction in which the edge runout approaches zero.

By using the cutting edge deflection correcting mechanism shown in the first embodiment, the deflection correcting screw 4 is attached to the tool holder 30.
A case will be described in which the blade edge runout of the tool 29 gripped via the collet 40 with 3 is corrected. in this case,
First, the tool holder 30 is mounted on a spindle of a machine tool (not shown). Then, as shown in FIG. 4 (A), the tool 2
The test indicator 28 is provided on the outer peripheral surface of the tip of the blade portion 29b of No. 9.
While pressing, the maximum difference in reading of the test indicator 28 during rotation of the spindle is measured as the edge deflection of the tool 29, and the angular position where the edge deflection of the tool 29 is highest is detected from this measurement value.

Next, at the angular position where the rotation of the main shaft is stopped and the blade tip runout of the tool 29 is the highest, for example, at the angular position P1 shown in FIG. 4B, the blade tip runout is the highest in the direction indicated by the arrow A1. Assuming that the position is shifted to the position shown by the broken line, the two shake correction screws 4 close to the angular position P1.
3a and 43b (see FIG. 4B) are operated in a screw-in direction by a work tool (not shown), and the respective shake correction screws 43a and 4b
The tip of 3b is pressed against the tip surface 34b of the chuck cylinder 34. As a result, the tip end surface 34 of the chuck cylinder 34 is provided in the area of the collar 42 located between the shake correcting screws 43a and 43b.
A force in the direction of separating from b is applied, and at the same time, the root portion 29a1 of the tool shank portion 29a corresponding to the collar portion 42 of the collet 40 is elastically deformed in the direction indicated by the arrow A2 in FIG. 4B. That is, by operating the shake correction screw 43 in the screw-in direction while observing the test indicator 28 so that the blade runout of the tool 29 approaches zero as much as possible, the center offset position shown by the broken line in FIG. 4B is obtained. Tool 2
Adjust the cutting edge of 9 so that it is in the position shown by the solid line. As a result, the runout of the cutting edge of the tool 29 can be corrected.
In addition, the angular position where the tip runout of the tool 29 is highest is, for example, the angular position P facing the runout correcting screw 43a.
In the case of No. 2, it is possible to correct the blade edge runout of the tool 29 by operating the runout correction screw 43a in the tightening direction.

According to the first embodiment as described above, the shake correcting screw 4 for the tip surface 34b of the chuck cylinder 34 is corrected.
Since the pressing force of 3 is adjusted to elastically deform the root part of the tool shank portion 29a in a direction in which the blade tip runout of the tool 29 approaches zero, the tool tip runout of the tool 29 can be corrected with a small force. In addition, it is possible to stably maintain high deflection accuracy. Further, if a female screw hole is formed in the collar portion 42 of the collet 40 and a shake correcting screw 43 is screwed into the female screw hole, a tool tip shake correcting mechanism of the tool can be configured. It can be easily applied to a tool holder, and is economical because it is only necessary to purchase the collet 40 with the shake correcting screw 43.

Next, referring to FIG. 5, a second embodiment of a tool edge deflection correcting device according to the present invention and a tool holder including the same will be described. FIG. 5 (A) is a vertical sectional side view showing a second embodiment of a tool edge deflection correcting device according to the present invention and a tool holder including the same, and FIG. 5 (B) is a sectional view taken along line 5- of FIG. 5 (A). It is a side view for explanation along a 5 line.

In FIG. 5A, the same components as those in FIG. 4A are designated by the same reference numerals, and the description thereof will be omitted. The different points from FIG. 4A will be mainly described. The difference between the second embodiment and the first embodiment is that the tool holder 30 is different from that of the first embodiment, as is apparent from FIGS.
The shank portion 29a of the tool 29 can be directly fitted and grasped in the chuck cylinder 34, and the support member 45 to which the shake correcting screw 43 is screwed is formed separately from the tool holder 30 and the tool 29. Where it is.

The support member 45 has a disk shape corresponding to the tip surface 34b of the chuck cylinder 34, and a boss portion 45a through which the shank portion 29a of the tool 29 penetrates is concentrically provided at the center of the support member 45. There is. Such a support member 45 has a boss portion 45 a on the shank portion 29 of the tool 29.
By fitting the boss 45a into the shank portion 29a and fastening the boss portion 45a to the shank portion 29a with the fixing screw 46, the boss portion 45a is fixedly coupled to the root portion 29a1 of the tool shank portion 29a protruding from the tip surface 34b of the chuck cylinder 34. Also, the support member 4
5 multiple points in the circumferential direction, for example 4 at 90 degrees from each other
Deflection correction screws 43 that penetrate the tool shank portion 29a in the direction parallel to the axis of the tool shank portion 29a and reach the tip surface 34b are screwed into the respective places. The support member 45 and the shake correction screw 43 constitute a blade shake correction mechanism for adjusting the shake of the tool 29.

The tool 2 held by the tool holder 30 using the blade edge deflection correcting mechanism shown in the second embodiment.
A case of correcting the blade edge runout of No. 9 will be described. In this case, first, the support member 4 in which the shake correcting screw 43 is screwed
5 is fixed to the root portion 29a1 of the tool shank portion 29a, and the tool 29 is gripped by the tightening cylinder 38 to the chuck cylinder 34 of the tool holder 30. Then, the tool holder 30 in the tool gripping state is attached to the spindle of a machine tool (not shown). Then, as shown in FIG. 5 (A),
The test indicator 28 is pressed against the outer peripheral surface of the tip portion 29b of the tool 29 to measure the maximum difference in reading of the test indicator 28 during the rotation of the spindle as the blade tip deflection of the tool 29, and the blade tip of the tool 29 is determined from this measured value. The angular position where the shake is highest is detected.

Next, at the angular position where the rotation of the main shaft is stopped and the blade tip runout of the tool 29 becomes the highest, for example, at the angular position P1 shown in FIG. 5B, the blade tip runout becomes the highest in the direction indicated by the arrow A1. Assuming that the position is shifted to the position shown by the broken line, the two shake correction screws 4 close to the angular position P1.
3a and 43b (see FIG. 5B) are operated in the screwing direction by a work tool (not shown) to adjust the shake correcting screws 43a and 4b.
The tip of 3b is pressed against the tip surface 34b of the chuck cylinder 34. As a result, a force is applied to the area of the support member 45 located between the shake correcting screws 43a and 43b in the direction of separating from the tip surface 34b of the chuck barrel 34, and at the same time, it corresponds to the boss portion 45a of the support member 45. Tool shank part 2
The root portion 29a1 of 9a is elastically deformed in the direction indicated by arrow A2 in FIG. That is, the test indicator 2 is set so that the edge runout of the tool 29 approaches zero as much as possible.
By operating the shake correction screw 43 in the screw-in direction while looking at 8, the cutting edge of the tool 29, which was at the misalignment position shown by the broken line in FIG. 5B, is adjusted to come to the position shown by the solid line. As a result, the runout of the cutting edge of the tool 29 can be corrected. Further, when the angular position at which the tip runout of the tool 29 is highest is, for example, at the angular position P2 facing the runout correcting screw 43a, the runout correcting screw 43a is operated in the tightening direction to 29 blade runouts can be corrected.

According to the second embodiment as described above, the shake correcting screw 4 for the tip surface 34b of the chuck cylinder 34 is corrected.
The pressing force of 3 is adjusted to elastically deform the root portion 29a1 of the tool shank portion 29a in a direction in which the blade tip runout of the tool 29 approaches zero infinitely, so the blade tip runout of the tool 29 can be corrected with a small force. In addition, it is possible to stably maintain high shake accuracy. Further, according to the second embodiment, the tool 29 and the tool holder 30
And a support member 45 that is a separate body from the support member 45, and a shake correction screw 43 screwed into the support member 45 to form a blade edge shake correction mechanism for the tool, and this blade shake correction mechanism can be attached to the shank portion 29a of the tool 29. Therefore, the blade runout correction mechanism can be easily applied to the existing tool holder, and moreover, it is economical because only the support member 45 with the runout correction screw 43 needs to be purchased.

Next, referring to FIG. 6, a third embodiment of a tool edge deflection correcting device and a tool holder having the same according to the present invention will be described. FIG. 6 (A) is a vertical sectional side view showing a third embodiment of a tool edge deflection correcting device and a tool holder provided with the same according to the present invention, and FIG. 6 (B) is 6- of FIG. 6 (A). FIG. 6 is an explanatory sectional view taken along line 6;

In FIG. 6 (A), the same components as those in FIG. 4 (A) are designated by the same reference numerals and the description thereof will be omitted. The third embodiment is different from the first embodiment in the configuration of the tool edge deflection correction mechanism of the tool, as is clear from FIGS. 6 (A) and 6 (B).

As shown in FIGS. 6 (A) and 6 (B), the blade edge shake correction mechanism according to the third embodiment has a coupling member 4 as shown in FIG.
7, a tubular member 48, a shake correction ring member 49, and a shake correction screw 50. The connecting member 47 is concentrically provided so as to face the tip end surface 34b of the chuck cylinder 34 in order to hold the blade edge deflection correcting mechanism on the tool holder 30, and the connecting member 47 uses the collar portion 42 of the collet 40. And a male screw portion 47a is formed on the outer peripheral surface of the collar portion 42 which is the connecting member 47.

The tubular member 48 holds the shake correcting ring member 49 and the shake correcting screw 50, and one end of the tubular member 48 has a male screw portion 47 of the collar portion 42.
At the other end opening of the cylindrical member 48, which is concentrically and separably screwed, a shake correction ring member 49 detachably fitted to the base portion 29a1 of the shank portion 29a of the tool 29 is attached. The tubular member 48 is swingably supported in the radial direction. In addition, at a plurality of positions in the circumferential direction on the other end side of the tubular member 48, for example, at four positions separated from each other by 90 degrees, the shake correction screws 50 respectively penetrate the tubular member 48 in the radial direction. The tip ends of the shake correcting screws 50 are engaged with the outer peripheral surface of the shake correcting ring member 49.

The tool 2 held by the tool holder 30 using the blade edge deflection correcting mechanism shown in the third embodiment.
A case of correcting the blade edge runout of No. 9 will be described. In this case, first, after inserting the tool shank portion 29a into the shake correction ring member 49 of the blade shake correction mechanism, the tool shank portion 29a is inserted into the chuck cylinder 34 of the tool holder 30 via the collet 40, The tool shank portion 29a is gripped by tightening with the tightening cylinder 38. Thereafter, one end of the tubular member 48 is screwed onto the male screw portion 47a of the collar portion 42, and the blade edge shake correction mechanism is attached to the tool holder 30. Then, the tool holder 30 in the tool gripping state is attached to the spindle of a machine tool (not shown). Then, as shown in FIG. 6 (A), the test indicator 28 is pressed against the tip outer peripheral surface of the blade portion 29b of the tool 29, and the maximum difference in reading of the test indicator 28 during the rotation of the main spindle is calculated. And the tool 29 from this measured value.
Detects the angular position where the run-out of the blade edge is highest.

Next, at the angular position where the rotation of the spindle is stopped and the blade tip runout of the tool 29 becomes the highest, for example, at the angular position P1 shown in FIG. 6B, the blade tip runout becomes the highest in the direction indicated by the arrow A1. Assuming that the position is shifted to the position shown by the phantom line in FIG. 6A, the shake correction screw 50a (see FIG. 6B) that is close to the angular position P1 is screwed in with a work tool (not shown). By operating in the direction, the shake correction ring member 49 is pressed by the shake correction screw 50a in the radial direction (direction perpendicular to the axis of the tool shank portion 29a). As a result, in the shake correction ring member 49 pressed by the shake correction screw 50a, the corresponding root portion 29a1 of the tool shank portion 29a is attached to the arrow A in FIG. 6B.
It is elastically deformed in the direction indicated by 2. That is, by operating the shake correction screw 43 in the screw-in direction while observing the test indicator 28 so that the blade edge runout of the tool 29 approaches zero as much as possible, the misalignment position shown by the phantom line in FIG. Adjust the blade edge of the tool 29 that was in line with the position shown by the solid line. As a result, the blade edge runout amount d of the tool 29
(Μm) can be corrected to zero. Also, the tool 2
The angular position where the blade edge runout of 9 is the highest is shown in FIG.
When it is at the angular position P2 between the shake correcting screws 50a and 50b shown in (B), by operating the shake correcting screws 50a and 50b in the tightening direction as described above,
The deflection of the cutting edge of the tool 29 can be corrected.

According to the third embodiment, the runout correction ring member 49 is pressed from the radial direction of the tool shank portion 29a by the runout correction screw 50, and the pressing force is adjusted to adjust the tool shank portion. Root portion 29a of 29a
Since 1 is configured to be elastically deformed in the direction in which the blade edge runout of the tool 29 approaches zero, the blade edge runout of the tool 29 can be corrected with a small force, and high runout accuracy can be stably maintained. In addition, according to the third embodiment, the tool edge correction mechanism for the tool is constructed by assembling the runout correction ring member 49 and the runout correction screw 50 on the tubular member 48 coupled to the collar portion 42 of the tool collet 40. And the blade edge correction mechanism is incorporated into the shank portion 29 of the tool 29.
Since it is configured to be attached to a, the blade edge deflection correcting mechanism can be easily applied to the existing tool holder, and further, the blade edge composed of the tubular member 48, the deflection correcting ring member 49, and the deflection correcting screw 50. It is economical because you only need to purchase the shake correction mechanism.

Next, referring to FIG. 7, a fourth embodiment of a tool edge correction device for a tool according to the present invention and a tool holder including the same will be described. FIG. 7 is a fourth view of a tool edge deflection correcting device according to the present invention and a tool holder including the same.
It is a vertical side view showing the embodiment of FIG. In FIG.
The same components as those in FIG. 6A are designated by the same reference numerals, and the description thereof will be omitted. The different points from FIG. 6A will be mainly described. The fourth embodiment is different from the third embodiment in that, as is apparent from FIG. 7, the shank portion 29a of the tool 29 is directly fitted and grasped by the chuck cylinder 34 of the tool holder 30. What is made possible, and the cylindrical member 48, the shake correcting ring member 49, and the shake correcting screw 5
The blade runout correction mechanism of 0 is assembled to the tool shank portion 29a.

That is, as shown in FIG. 7, the tool holder 30 and the tool 29 are provided with a connecting member 51 having a different structure. The connecting member 51 has a disk shape corresponding to the tip surface 34b of the chuck cylinder 34, and this connecting The tool 2 is provided at the center of the member 51.
A boss portion 51a through which the shank portion 29a of 9 passes is provided concentrically. In such a coupling member 51, the boss portion 51a is fitted to the shank portion 29a of the tool 29, and the boss portion 51a is fastened to the shank portion 29a with the fixing screw 52, so that the coupling member 51 has the tip of the chuck cylinder 34. It is fixedly coupled to the tool shank portion 29a protruding from the surface 34b. A male screw 51b is formed on the outer peripheral surface of the coupling member 51. One end of the tubular member 48 is concentrically and separably screwed to the male screw 51b, and the other end of the tubular member 48 is joined to the male screw 51b. Similarly to the case shown in FIG. 6, the shake correcting ring member 49 and the shake correcting screw 50 are provided.

According to the fourth embodiment as described above, in addition to the same operational effects as those of the third embodiment,
By configuring the connecting member 51 to be able to be fixed to the shank portion 29a of the tool 29, it is possible to further facilitate the use of the blade edge shake correction mechanism in the existing tool holder.

Next, a fifth embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention will be described with reference to FIG. FIG. 8A is a vertical cross-sectional side view showing a fifth embodiment of a tool edge deflection correction device and a tool holder including the same according to the present invention, and FIG. FIG. 8 is a sectional view for explanation along line 8;

In FIG. 8A, the same components as those in FIG. 4A are designated by the same reference numerals, and the description thereof will be omitted. The fifth embodiment is different from the first embodiment in the configuration of the tool edge deflection correcting mechanism of the tool, as is clear from FIGS. 8 (A) and 8 (B).

As shown in FIGS. 8 (A) and 8 (B), the blade runout correction mechanism according to the fifth embodiment has a joining member 5
3, a tubular member 54, a ring member 55, an eccentric cam 56 for correcting shake, and an operation shaft 57. The coupling member 53 is provided concentric with the axis of the tool shank portion 29a so as to face the tip end surface 34b of the chuck cylinder 34 in order to hold the blade runout correction mechanism on the tool holder 30.
3 is constructed by utilizing the collar portion 42 of the collet 40, and the male screw portion 53a is formed on the outer peripheral surface of the collar portion 42 which is the coupling member 53.

The tubular member 54 is for holding the ring member 55 and the eccentric cam 56 for correcting the shake, and one end of the tubular member 54 has a male shank portion 53a of the collar portion 42 and a tool shank portion 29a. It is screwed so as to be concentric with the axis and separably, and further, in the other end opening of the tubular member 54,
The ring member 55 is supported by the coupling ring 58 so as to be rotatable about the axis of the tubular member 54 and not to move in the axial direction of the tubular member 54. The eccentric cam 5
6 has a disk shape, and the eccentric cam 56 has a ring member 55.
Is arranged so as to circumscribe the outer peripheral surface of the shank portion 29a of the tool, and the operation shaft 57 is centered on an axis line parallel to the axis line of the tool shank portion 29a and at a desired distance from the axis line. The eccentric cam 56 is eccentrically fixed to the operating shaft 57.

The tool 2 gripped by the tool holder 30 using the blade edge deflection correcting mechanism shown in the fifth embodiment.
A case of correcting the blade edge runout of No. 9 will be described. In this case, first, the tool shank portion 29a is inserted into the ring member 55 of the blade edge shake correction mechanism, and then the tool shank portion 2 is inserted.
9a into the chuck cylinder 34 of the tool holder 30 and the collet 4
The tool shank portion 29a is gripped by inserting it through 0 and tightening it with the tightening cylinder 38. After that, one end of the tubular member 54 is screwed into the male screw portion 53 a of the collar portion 42, and the blade edge shake correction mechanism is attached to the tool holder 30. Then, the tool holder 30 in the tool gripping state is attached to the spindle of a machine tool (not shown). Then, as shown in FIG. 8 (A), the test indicator 28 is pressed against the outer peripheral surface of the tip end of the blade portion 29b of the tool 29, and the maximum difference in reading of the test indicator 28 during the rotation of the main spindle is detected. And the angular position where the edge deflection of the tool 29 is highest is detected from the measured value.

Next, the rotation of the spindle is stopped, and the blade tip of the tool 29 moves in the direction indicated by the arrow A1 in the direction indicated by the arrow A1 at the angular position where the blade tip runout is highest, for example, the angular position P1 shown in FIG. 8B. Shake, and the shake is the highest, as shown in Fig. 8 (A).
Assuming that the ring member 55 is displaced to the position indicated by the phantom line, first, the ring member 55 is rotated to align the eccentric cam 56 with the angular position P1. In this state, the operation shaft 57 rotates the eccentric cam 56 in the direction of the arrow in FIG. 8B to increase the pressing force on the tool shank portion 29a. As a result, the tool shank portion 29a has its root portion 29a1 as a fulcrum.
It is elastically deformed in the direction indicated by arrow A2 in (A). That is, by rotating the eccentric cam 56 in a direction in which the amount of eccentricity increases while observing the test indicator 28 so that the edge deflection of the tool 29 approaches zero as much as possible,
The cutting edge of the tool 29, which was at the misalignment position shown by the phantom line in (A), is adjusted so as to come to the position shown by the solid line. This makes it possible to correct the edge runout amount d (μm) of the tool 29 to zero.

According to the fifth embodiment as described above, the eccentric cam 56 is rotated by the operating shaft 57 to increase or decrease the pressing force in the radial direction on the tool shank portion 29a, whereby the root portion of the tool shank portion 29a is adjusted. Since 29a1 is configured to be elastically deformed in a direction in which the blade tip runout of the tool 29 approaches zero, the blade tip runout of the tool 29 can be corrected with a small force, and high runout accuracy can be stably maintained. Further, according to the fifth embodiment, the runout correcting ring member 55 is rotatably incorporated in the tubular member 54 coupled to the flange portion 42 of the tool collet 40, and the tool shank portion is incorporated in the ring member 55. 29a, an eccentric cam 56 that circumscribes the eccentric cam 56 is incorporated,
7 is assembled to form a tool edge deflection correction mechanism, and this blade edge deflection correction mechanism is detachably coupled to the collet 40 of the tool holder 30, so that the blade edge deflection correction mechanism can be easily applied to existing tool holders. The present invention is also economically advantageous because it is only necessary to purchase a blade edge shake correction mechanism including the cylindrical member 54, the ring member 55, the shake correction eccentric cam 56, and the operation shaft 57. .

Next, referring to FIG. 9, a sixth embodiment of a tool edge deflection correcting device according to the present invention and a tool holder including the same will be described. FIG. 9 is a sixth view of a tool edge deflection correcting device according to the present invention and a tool holder including the same.
It is a vertical side view showing the embodiment of FIG. In FIG.
The same components as those in FIG. 8A are designated by the same reference numerals, and the description thereof will be omitted. The description will focus on the portions different from FIG. 8A. The sixth embodiment is different from the fifth embodiment in that, as is apparent from FIG. 8, the shank portion 29a of the tool 29 is directly fitted and grasped by the chuck cylinder 34 of the tool holder 30. This is because the blade shank correction mechanism including the cylindrical member 54, the ring member 55, the shake correction eccentric cam 56, and the operation shaft 57 is assembled to the tool shank portion 29a.

That is, as shown in FIG. 9, the tool holder 30 and the tool 29 are provided with a coupling member 59 having a different structure. The coupling member 59 has a disk shape corresponding to the tip surface 34b of the chuck cylinder 34, and this coupling is performed. The tool 2 is provided at the center of the member 59.
A boss portion 59a through which the shank portion 29a of 9 passes is provided concentrically. In such a coupling member 59, the boss portion 59a is fitted to the shank portion 29a of the tool 29, and the boss portion 59a is fastened to the shank portion 29a with the fixing screw 60. It is fixedly coupled to the tool shank portion 29a protruding from the surface 34b. A male screw 59b is formed on the outer peripheral surface of the coupling member 59. One end of the tubular member 54 is concentrically and separably coupled to the male screw 59b, and the other end of the tubular member 54 is joined to the male screw 59b. 6, the tubular member 54, the ring member 55, and the eccentric cam 56 for correcting the shake as in the case shown in FIG.
And the operation shaft 57 is assembled.

According to the sixth embodiment as described above, in addition to the same operational effects as the fifth embodiment,
By configuring the coupling member 59 to be able to be fixed to the shank portion 29a of the tool 29, it is possible to further facilitate the use of the blade edge shake correction mechanism in the existing tool holder.

FIG. 10 (A) is a vertical sectional side view showing a seventh embodiment of a tool holder having a tool edge deflection correcting mechanism according to the present invention, and FIG. 10 (B) is a sectional view of FIG. 10 (A). −
It is an explanatory sectional view taken along line 10.

In FIG. 10, while holding a cutting tool 29 such as a drill or a burnishing reamer, the tool 29
The tool holder 70 having the function of correcting the blade edge shake is provided with a taper collet 72, a tubular tightening member 73, a shake correcting ring member 74, and a shake correcting screw 75. The holder body 71 includes a tapered shank portion 711 mounted on a spindle of a machine tool (not shown), and the shank portion 71.
No. 1 flange portion 71 for tool exchange formed on the large-diameter side end
The holder main body 71 is provided with two and an arbor 713 integrally formed with the end of the flange portion 712 on the side opposite to the shank portion so as to match the axis. Further, the arbor 713 of the holder main body 71 is concentrically formed with a tapered hole 714 having a desired length whose diameter decreases as it goes rearward from the tip end surface 713a. The part 715 is formed.

The taper collet 72 holds the shank portion 29a of the tool 29 and is detachably fitted in the taper hole 714 of the arbor 713. Further, the taper collet 72 is formed with a plurality of slits 721 extending in the axial direction thereof in the circumferential direction. Also, the taper hole 714
An engagement groove 722 is formed in a ring shape on the outer peripheral surface of the end portion of the taper collet 72 projecting outward, and the engagement groove 722 is formed in a ring shape on the inner peripheral surface of the fastening member 73 so as to face the engagement groove 722. It is engaged with the formed ridge 731 so as to be relatively rotatable.

The cylindrical tightening member 73 is used for the holder main body 7
The taper collet 72 is moved in the axial direction by screwing the male screw portion 715 formed on the arbor 713 of No. 1 to chuck and unchuck the shank portion 29a of the tool 29 and correct the runout of the cutting edge of the tool 29. The shake correcting ring member 74 is provided in the other end opening 731 opposite to the screwing side of the tightening member 73 so as to be swingable in the radial direction of the tightening member 73. . The shake correcting ring member 74 is detachably fitted so that the shank portion 29a of the tool 29 penetrates through the center thereof.

Further, at a plurality of positions in the circumferential direction on the other end side of the tightening member 73, for example, at four positions separated by 90 degrees,
Each shake correcting screw 75 is screwed so as to penetrate the tightening member 73 in the radial direction, and the tip of each shake correcting screw 75 is engaged with the outer peripheral surface of the shake correcting ring member 74. .

The tool 2 gripped by the tool holder 70 using the cutting edge deflection correcting mechanism shown in the seventh embodiment.
A case of correcting the blade edge runout of No. 9 will be described. In this case, first, after inserting the tool shank portion 29a into the shake correction ring member 74 of the blade shake correction mechanism, the tool shank portion 29a is inserted into the tapered hole 714 of the holder body 71 via the collet 72, The tool shank portion 29a is gripped by tightening the tightening member 73. Then, the tool holder 70 in the tool-holding state is mounted on the spindle of a machine tool (not shown). Then, as shown in FIG. 10 (A), the test indicator 28 is pressed against the tip outer peripheral surface of the blade portion 29b of the tool 29, and the maximum difference in reading of the test indicator 28 during the rotation of the spindle is determined. And the angular position where the edge deflection of the tool 29 is highest is detected from the measured value.

Next, at the angular position where the rotation of the main shaft is stopped and the blade tip runout of the tool 29 becomes the highest, for example, at the angular position P1 shown in FIG. 10B, the blade tip runout becomes the highest in the direction indicated by the arrow A1. Assuming that the position is shifted to the position indicated by the phantom line in FIG. 10A, the shake correction screw 75a (see FIG. 10B) that is close to the angular position P1 is screwed in with a work tool (not shown). By operating in the direction, the shake correcting ring member 74 is pressed by the shake correcting screw 75a in the radial direction (direction perpendicular to the axis of the tool shank portion 29a). As a result, the shake correcting ring member 74 pressed by the shake correcting screw 75a elastically deforms the corresponding root portion 29a1 of the tool shank portion 29a in the direction indicated by the arrow A2 in FIG. 10B. That is, by operating the shake correction screw 43 in the screw-in direction while observing the test indicator 28 so that the blade edge runout of the tool 29 approaches zero as much as possible, the misalignment position shown by the phantom line in FIG. Adjust the blade edge of the tool 29 that was in line with the position shown by the solid line. This makes it possible to correct the edge runout amount d (μm) of the tool 29 to zero. Also,
When the angular position at which the blade edge runout of the tool 29 is highest is, for example, the angular position P2 between the runout correction screws 75a and 75b shown in FIG. 10B, the runout correction screws 75a and 75b are provided. By operating the tool in the tightening direction in the same manner as described above, it is possible to correct the edge deflection of the tool 29.

According to the seventh embodiment as described above, the shake correcting ring member 74 provided on the tightening and tightening member 73 is attached to the tool shank portion 29a by the shake correcting screw 75.
Since it is configured to elastically deform the root portion 29a1 of the tool shank portion 29a in a direction in which the blade edge runout of the tool 29 approaches zero, the blade edge runout of the tool 29 is small. It is possible to correct with a force, and it is possible to stably maintain high shake accuracy. Further, according to the seventh embodiment, the tool edge deflection correction mechanism is constituted by the deflection correction ring member 74 and the collet tightening tightening member 73 in which the deflection correction screw 75 is incorporated. Since the correction mechanism can be attached to the tool holder 71, the blade edge shake correction mechanism can be easily applied to an existing tool holder, and further, the shake correction ring member 74 is used for the shake correction screw 75.
Since it is only necessary to purchase the tightening member 73 incorporating
It is economical.

[0064]

As described above, according to the tool edge deflection correcting device of the present invention and the tool holder using the same, the pressing force of the deflection correcting screw on the tip surface of the tool holder is adjusted to adjust the tool shank. Since the root part of the tool is configured to elastically deform in the direction in which the tool edge run-out approaches zero, the tool edge run-out can be corrected with a small force, and high run-out accuracy can be stably maintained and The correction means can be easily applied to existing tool holder products.

Further, according to the tool edge deflection correcting device and the tool holder using the same according to the present invention, the deflection correcting ring member is pressed from the radial direction of the tool shank portion by the deflection correcting screw, and this pressing force is applied. Is adjusted to elastically deform the root of the tool shank in the direction in which the tool edge run-out approaches zero, so the tool edge run-out can be corrected with a small force and high run-out accuracy is stabilized. It can be maintained, and the edge runout correction means can be easily applied to existing tool holder products.

Further, according to the tool edge deflection correcting device of the present invention and the tool holder using the same, the eccentric cam is rotated by the operating shaft to adjust the pressing force in the radial direction on the shank portion. Since the root part of the shank is elastically deformed in the direction where the tool edge runout approaches zero, the tool edge runout can be corrected with a small force, and high runout accuracy can be stably maintained, and the blade edge can be stably maintained. The shake correction means can be easily applied to existing tool holder products.

Further, according to the tool holder with the cutting edge shake correcting device of the present invention, the shake correcting ring member provided on the tightening member that also serves as the tightening member is pressed from the radial direction of the tool shank portion by the shake correcting screw. Since the pressing force is adjusted to elastically deform the root part of the tool shank in the direction in which the tool edge runout approaches zero, the tool edge runout can be corrected with a small force and high runout. The accuracy can be stably maintained, and the edge runout correction means can be easily applied to existing tool holder products.

[Brief description of drawings]

FIG. 1 is a side view of a partly cutaway showing an example of a conventional tool holder with a cutting edge shake correction mechanism.

FIG. 2 is a partial cutaway side view showing another example of a conventional tool holder with a cutting edge shake correction mechanism.

FIG. 3 is an explanatory view of a conventional tool holder with a blade edge shake correction mechanism.

4A is a vertical sectional side view showing a first embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention, and FIG. 4B is a 4-4 line of FIG. 4A. It is a side view for explanation along with.

5A is a vertical cross-sectional side view showing a second embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention, and FIG. 5B is a line 5-5 of FIG. It is a side view for explanation along with.

FIG. 6A is a vertical sectional side view showing a third embodiment of a tool edge deflection correcting device for a tool according to the present invention and a tool holder including the same, and FIG. 6B is a 6-6 line of FIG. It is an explanatory sectional view taken along.

FIG. 7 is a vertical cross-sectional side view showing a fourth embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention.

FIG. 8A is a vertical sectional side view showing a fifth embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention, and FIG. 8B is a line 8-8 in FIG. 8A. It is an explanatory sectional view taken along.

FIG. 9 is a vertical cross-sectional side view showing a sixth embodiment of a tool edge deflection correcting device and a tool holder including the same according to the present invention.

10A is a vertical sectional side view showing a seventh embodiment of a tool holder provided with a tool edge deflection correcting mechanism according to the present invention, and FIG. 10B is taken along line 10-10 of FIG. It is an explanatory sectional view.

[Explanation of symbols]

28 Test Indicator 29 tools 29a shank part 29b blade 29a1 root part 30 tool holder 31 Holder body 32 shank 33 Flange 34 chuck tube 34a Tip surface 35 Roller holding cylinder 37 Needle roller 38 Tightening tube 40 collets 42 collar part 43 Runout correction screw 45 Support member 47 Coupling member 48 Cylindrical member 49 Runout correction ring member 50 Runout correction screw 51 Coupling member 53 Coupling member 54 Cylindrical member 55 Ring member 56 Eccentric cam for shake correction 57 Operation axis 58 coupling ring 59 Coupling member 70 Tool holder 71 body 72 Taper collet 73 Tightening member 74 Runout correction ring member 75 Shake correction screw

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hirohide Kugimiya             1-53 Motomachi 1-53, Higashi-Osaka City, Osaka Prefecture Stock             Company Nikken Kosakusho F-term (reference) 3C016 FA27

Claims (12)

[Claims] 1. A device for correcting the deflection of the cutting edge of a tool held by a tool holder, the shank of the tool being provided so as to face the tip surface of the tool holder and projecting forward from the tip surface. A support member coupled to the root portion of the portion, and a plurality of screws screwed at a plurality of circumferential positions of the support member so as to penetrate the support member in a direction parallel to the axis of the tool and reach the tip surface. And a deflection correcting screw, and the pressing force of the deflection correcting screw with respect to the tip surface is adjusted to elastically deform the root portion of the tool shank portion in a direction in which the edge deflection of the tool approaches zero. Tool edge runout correction device characterized by the above. 2. A shank portion of the tool is gripped by the tool holder via a collet, and the support member is constituted by a collar portion of the collet provided at a tip of the collet facing the tip surface. Claim 1 characterized by the above-mentioned.
The tool tip runout correction device described. 3. A tool edge correction of a tool according to claim 1, wherein the support member is configured separately from the tool holder and the tool, and the support member is detachably fixed to a shank portion of the tool. apparatus. 4. A device for correcting the deflection of the cutting edge of a tool gripped by a tool holder, wherein a joining member provided facing the tip end surface of the tool holder and one end of the joining member are separable. A coupled tubular member and a swingably supported end opening of the tubular member, and a detachable fit with a root portion of a shank portion of the tool projecting forward from the tip surface. A runout correction ring member, and a plurality of circumferentially threaded portions of the tubular member are screwed together so as to penetrate the tubular member in a radial direction, and a tip end thereof engages with an outer peripheral surface of the runout correction ring member. And a plurality of runout correction screws, wherein the runout correction ring member is pressed from the radial direction of the tool shank portion by the runout correction screw, and the pressing force is adjusted to adjust the root portion of the tool shank portion. Zero tool edge runout Tip run-out correction device of the tool, characterized by being configured so as to elastically deform in a direction brute. 5. A device for correcting the blade edge runout of a tool held by a tool holder, wherein a joining member is provided facing the tip end surface of the tool holder, and one end of the joining member is separable. A joined tubular member, a ring member rotatably supported in the opening of the other end of the tubular member around the axis of the tubular member, and an outer peripheral surface of the shank portion of the tool in the ring member. An eccentric cam arranged so as to circumscribe, and an operating shaft that rotates while pressing the eccentric cam to the root outer peripheral surface of the shank portion of the tool projecting forward from the tip surface, the operating shaft By rotating an eccentric cam to adjust the radial pressing force to the shank portion, the root portion of the tool shank portion is elastically deformed in a direction in which the edge deflection of the tool approaches zero. You Tool tip deflection correction device. 6. The shank portion of the tool is held by the tool holder via a collet, and the coupling member is constituted by a collar portion provided at the tip of the collet so as to face the tip surface. The tool edge runout correction device for a tool according to claim 4 or 5, characterized in that: 7. The cutting edge of a tool according to claim 4, wherein the coupling member is configured separately from the tool holder and the tool, and the coupling member is detachably fixed to a shank portion of the tool. Shake correction device. 8. A tool holder for detachably gripping a shank portion of a tool, comprising a cutting edge shake correction mechanism for correcting the cutting edge shake of the tool, wherein the cutting edge shake correction mechanism is a tip surface of the tool holder. A support member that is provided so as to face each other and that is coupled to the root portion of the shank portion of the tool that protrudes forward from the tip surface, and the support members at a plurality of circumferential positions of the support member. And a plurality of shake correcting screws screwed so as to reach the tip end face in a direction parallel to the tool holder. 9. A tool holder for detachably gripping a shank portion of a tool, comprising a blade edge deflection correcting mechanism for correcting blade edge deflection of the tool, wherein the blade edge deflection correcting mechanism is a tip surface of the tool holder. A coupling member provided so as to face each other, a tubular member having one end separably coupled to the coupling member, a swingable support at the other end opening of the tubular member, and from the tip surface. A shake correcting ring member detachably fitted to the root portion of the shank portion of the tool projecting forward, and a plurality of circumferential positions of the tubular member so as to penetrate the tubular member in the radial direction. And a plurality of shake correction screws whose tips are engaged with the outer peripheral surface of the shake correction ring member. 10. A tool holder for removably gripping a shank portion of a tool, comprising a blade edge deflection correcting mechanism for correcting blade edge deflection of the tool, wherein the blade edge deflection correcting mechanism is a tip surface of the tool holder. A coupling member provided opposite to each other, a tubular member having one end separably coupled to the coupling member, and rotatable inside the opening at the other end of the tubular member around the axis of the tubular member. A supported ring member, an eccentric cam arranged in the ring member so as to circumscribe the outer peripheral surface of the shank portion of the tool, and a shank portion of the tool that projects the eccentric cam forward from the tip surface. A tool holder comprising: an operating shaft that rotates while being pressed against the outer peripheral surface of the root. 11. A shank part to be inserted into a spindle of a machine tool and one end of the shank part. The shank part is extended with its axis aligned, and a tapered surface is formed on an outer peripheral surface of which the diameter decreases toward the tip side. A holder body having a chuck cylinder, and a tightening cylinder for tightening the chuck cylinder from the outer peripheral surface side,
It is configured such that the chuck cylinder is reduced in diameter or restored by the tightening cylinder and the shank portion of the tool fitted in the chuck cylinder is detachably grasped directly or through a collet. Any one of claims 8 to 10
Tool holder described in item. 12. A tool holder for detachably gripping a shank portion of a tool, the holder body having a concentric taper hole whose diameter decreases as going from a tip end surface to the rear, and detachable from the taper hole. And a taper collet for gripping the shank portion of the tool, and a shank portion of the tool by axially moving the taper collet by screwing into a male screw portion formed on the outer periphery of the tip of the holder body. A tubular member for chucking and unchucking, a swingable support at the other end opening opposite to the screwing side of the tubular member, and a detachable fit on the shank portion of the tool. A runout correction ring member, and a plurality of circumferentially threaded portions of the tubular member are screwed together so as to penetrate the tubular member in a radial direction, and a tip end thereof engages with an outer peripheral surface of the runout correction ring member. Multiple A runout correction screw, and the runout correction ring member is pressed from the radial direction of the tool shank portion by the runout correction screw, and the pressing force is adjusted to adjust the root portion of the tool shank portion to the cutting edge of the tool. A tool holder characterized in that it is elastically deformed in a direction in which runout approaches zero.