JP2013123768A - Cutting tool holder and microscope device used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting tool holder easily adjusting positions of blades of cutting tools in a thickness direction of a turntable.SOLUTION: In the cutting tool holder, a central part of the turntable has a shaft hole for connecting the turntable to a rotary shaft, a peripheral part of the turntable is formed with fixing parts for fixing the plurality of cutting tools at intervals along the circumferential direction, and the positions of the blades of the respective cutting tools can be adjusted in the thickness direction of the turntable. The turntable includes a first turntable and a second turntable overlapping each other, the first turntable includes slits toward the central part from the periphery in distant positions on both sides in the circumferential direction with the fixing parts as centers, is formed with adjustment pieces formed at both sides to the fixed part and completely separated in the circumferential direction by a pair of the slits, and has isolation screw fixing parts forming the adjustment pieces to a direction isolated from the second turntable so as to be deformable in at least one of the first turntable and the second turntable.

Description

  The present invention relates to a tool holder for fixing a plurality of tools as a cutting tool, and a microscope apparatus used when adjusting the attachment position of the tool to be fixed to the tool holder in the thickness direction of the tool holder.

  In recent years, LEDs are used as light sources for backlights in liquid crystal displays, and a large number of LEDs are arranged on the end face of the light guide plate so that the entire light guide plate shines uniformly. In addition, in order to make the entire light guide plate shine uniformly while reducing the number of LEDs, a large number of V grooves are formed on the end surface of the light guide plate to make the end surface jagged, thereby facilitating light diffusion. It has been broken. For this reason, as shown in FIG. 13, a plurality of rectangular resin plates serving as light guide plates are laminated to form a work W, and after the four end faces of the work W are mirror-cut, the two end faces face each other. Cutting the V-groove at a predetermined pitch is performed.

  By the way, if only one V-groove can be formed in one cutting process, the total machining time required for machining to form the V-groove on the entire workpiece is proportional to the number of V-grooves. Therefore, in order to shorten the total machining time, we started the development of a bite holder that can form a plurality of V grooves in one cutting process.

  The tool holder developed at the beginning was a turntable capable of fixing a plurality of tools for V-groove processing. On the premise that a plurality of tools of the same type are attached, the tool holder is formed with installation groove portions for positioning the shank of each tool at intervals in the circumferential direction of the rotating disk. Each installation groove is formed in a radial shape, and when a cutting tool is fixed to the installation groove, the cutting edge of the cutting tool protrudes outward in the radial direction of the rotating disk, and the V groove is cut by this cutting tool. Moreover, the depth of each installation groove part was varied, and it was designed so that the position of the blade part of each cutting tool could be shifted every predetermined pitch in the thickness direction of the rotating disk.

  However, even if the depth and bite of the installation groove of the rotating disk are processed with high accuracy, processing errors are inherent. Therefore, the cutting edge of the tool fixed to the installation groove includes these two processing errors with respect to the position in the thickness direction of the rotating disk (the position in the depth direction of the installation groove). If the V-groove is machined on the workpiece in a state including such two machining errors, the pitch of the V-groove formed on the workpiece also includes the machining error.

  Therefore, in order to eliminate the processing error and form the V-groove with a desired pitch with high accuracy for the workpiece, conventionally, a thin spacer is sandwiched between the shank of the tool and the installation groove as required. The position of the blade part of each tool was finely adjusted in the thickness direction of the rotating disk.

  However, it is troublesome to prepare spacers having various thicknesses. In addition, when attaching the spacer, it is necessary to remove the bit and then attach it again.

  The present invention has been created in view of the above circumstances, and an object thereof is to provide a tool holder that can easily adjust the position of the blade part of the tool in the thickness direction of the rotating disk.

  Further, since this adjustment work is performed by the number of tools attached to the tool holder, it is necessary to shorten the work time. Therefore, it is also an object to provide a microscope apparatus that can easily check the cutting edge of the cutting tool when adjusting the cutting tool in the thickness direction of the cutting tool holder.

  The tool holder of the present invention has a shaft hole for connecting to the rotating shaft at the center of the rotating disk, and a plurality of tools are fixed to the outer peripheral part of the rotating disk at intervals along the circumferential direction thereof. It is assumed that the tool holder is provided with a fixing part for adjusting the position of the blade part of each tool in the thickness direction of the rotating disk.

  According to the present invention, the turntable includes a first turntable and a second turntable that overlap each other, and the first turntable is located at a position away from both sides in the circumferential direction with the fixed portion as a center. A separating screw provided on both sides with respect to the fixed portion to form an adjustment piece that is separated in the circumferential direction by a pair of slits and that can be deformed in a direction away from the second rotating disk It has a stop part in at least one of the 1st turntable and the 2nd turntable.

  Moreover, although the above-mentioned invention makes it possible to separate an adjustment piece from a 2nd rotary disk, the reverse is also possible. That is, the turntable includes a first turntable and a second turntable that overlap each other, and the first turntable has a slit from the outer periphery toward the center at a position away from both sides in the circumferential direction around the fixed portion. An adjustment piece provided on both sides of the fixed portion and separated in the circumferential direction by a pair of slits, and the adjustment piece is provided on the overlapping surface of the first turntable or the second turntable. A recess that can be deformed in a direction approaching the second rotation plate, and an access screw fixing portion that is provided so as to be deformable in a direction approaching the second turntable on at least one of the first turntable and the second turntable. is there.

  Further, the adjustment piece can be separated or accessible with respect to the second turntable. That is, at least one of the first turntable and the second turntable has a separation screw fixing portion that can be deformed in a direction away from the second turntable, and the first turntable and the second turntable are overlapped. At least one of the mating surfaces is provided with a concave portion that allows the adjustment piece to be deformed in a direction approaching the second rotating disk, and an approach screw fixing portion that is provided so as to be deformable in a direction approaching the second rotating disk. It is to have in at least one of a turntable and a 2nd turntable.

  The adjustment piece can be deformed with the inner periphery as a fulcrum, and it is desirable to make the deformation as follows. That is, the first rotating disk is formed with a deformation promoting groove portion communicating with the pair of slits on both sides of the adjustment piece in the inner peripheral portion of the adjustment piece.

  In order to facilitate the deformation of the adjusting piece, it is desirable to make the inner peripheral side of the fulcrum portion more undeformable, and it is desirable to do the following. That is, the first rotating disk and the second rotating disk are screwed to the inner peripheral side in the radial direction from each adjustment piece.

  Further, although a byte is fixed to the adjustment piece, the byte is not limited to the same type. Therefore, for example, when a tool having a different blade position (position with respect to the thickness direction of the first rotating disk) is used as the tool, the tool can be By simply fixing, the position of the blade part of each tool becomes different in the thickness direction. However, when the same type of tool is used, if the thickness of the fixing part of each adjustment piece is made uniform, even if the tool is fixed, the position of the blade part of each tool is almost aligned in the thickness direction. become. In this case, unless the amount of deformation by the adjustment piece is increased, the position of the blade portion of each tool does not differ in the thickness direction. Accordingly, in order to reduce the amount of deformation even in such a case, it is desirable to do the following. That is, each adjustment piece is provided with an installation groove as a fixing portion, and the installation groove portion of each adjustment piece has a different groove depth.

  The approaching screwing portion and the remote screwing portion may be provided at positions where their axes are different from each other, but it is desirable to do the following in consideration of the workability of screwing. That is, the approach screwing portion and the remote screwing portion are provided at positions where the axes of the mutual screws coincide with each other, the remote screwing portion is composed of a remote male screw member and a remote female screw hole, It is cylindrical and has a male screw formed on its outer peripheral surface, a fitting hole for a tool is formed on the head side of the inner peripheral surface, and an approaching female on the tip side of the inner peripheral surface. The screw hole is formed, the separated female screw hole is formed in the second rotating disk, and the approaching screw fixing part includes the approaching male screw member, the approaching female screw hole, and the shaft part of the approaching male screw member. The approaching male screw member is screwed into the approaching female screw hole on the inner peripheral surface of the separated male screw member, and the approaching through hole is formed in the first rotating disk. It is that you are.

  Further, the adjustment pieces are not limited as long as the adjustment pieces are formed at intervals in the circumferential direction with respect to the first rotating disk. However, in order to easily adjust the position of the cutting edge of the cutting tool fixed to the adjusting piece, it is desirable to do the following. That is, the first rotating disk is formed with adjustment pieces at equal angles along the circumferential direction, and the first rotating disk and the second rotating disk are positioned at equal angles along the circumferential direction at the holder-side phasing holes. Is formed through.

  Further, the following microscope apparatus is suitable for using the above-described tool holder. The microscope apparatus according to the present invention includes a pedestal, a work table on which the tool holder according to claim 8 on which the tool is fixed, a microscope main body for viewing the blade of the tool at a specific position, and a visual field visible from the microscope main body are adjusted. The work table is attached to the pedestal, and the microscope main body is attached via the visual field adjustment mechanism.The work table includes a table main body and a central axis protruding from the table main body. The table body has a table-side phasing hole, and the tool holder is centered on the central axis with the axial holes formed on the first and second rotating discs inserted into the central axis. With positioning pins inserted into the table-side phasing holes and holder-side phasing holes, with the positioning pins inserted. , Characterized in that the blade portion of the bytes in a particular position is visibly positioned from the microscope main body.

  In order to easily adjust the position of the cutting edge of the cutting tool by deforming the adjusting piece, it is desirable to do the following as seen from the direction in which the cutting edge can be clearly seen. That is, the line-of-sight direction of the microscope body coincides with the direction in which the cutting edge of the cutting tool at a specific position in the circular locus drawn by the cutting tool blade when rotating the cutting tool holder is viewed from the tangential direction. It is provided with the focus adjustment mechanism which can move a microscope main body to the X-axis direction which is a visual line direction of a microscope main body.

  Furthermore, when the positions of the plurality of tools are greatly different from the thickness direction of the tool holder, it is desirable to do the following so that the field of view can be moved. That is, the visual field adjustment mechanism includes a Z-axis direction adjustment mechanism that can move the microscope main body in the Z-axis direction that is the thickness direction of the tool holder.

  According to the first aspect of the present invention, since the adjusting piece can be deformed in the direction away from the second rotating disk by the separating screw fixing part, the position of the cutting edge of the cutting tool is adjusted in the direction separating from the second rotating disk. Can be done easily.

  According to the invention of claim 2, since the adjustment piece can be deformed in the direction approaching the second rotating disk by the recess and the approaching screwing portion, the position of the cutting edge of the cutting tool is adjusted in the direction approaching the second rotating disk. It can be easily adjusted.

  According to the invention of claim 3, it is possible to easily adjust the position of the cutting edge portion of the cutting tool in the direction separating from and approaching the second rotating disk.

  According to the invention of claim 4, since the deformation promoting groove is formed in the inner peripheral portion of the adjustment piece, the adjustment piece can be easily deformed.

  According to the fifth aspect of the present invention, since the first rotating disk and the second rotating disk are screwed to the inner peripheral side in the radial direction from the respective adjusting pieces, the adjusting pieces can be easily deformed.

  According to invention of Claim 6, since the depth of the installation groove part formed in each adjustment piece differs, even if there is little quantity which deforms an adjustment piece when fixing the same kind of cutting tool, The position of the blade portion can be varied, and the adjustment work is facilitated.

  According to the seventh aspect of the present invention, since the approaching screwing portion and the remote screwing portion are provided at positions where their axes coincide with each other, the operator knows the positions of the proximity male screw member and the remote male screw member. Easy and workable.

  According to the eighth aspect of the present invention, since the adjustment pieces and the holder side phase alignment are formed at the same equal angle, it becomes easy to adjust the position of the cutting edge of the cutting tool fixed to the adjustment piece.

  According to the ninth aspect of the present invention, when the tool holder is rotated about the central axis and the positioning pin is inserted into the table side phase adjusting hole and the bit side phase adjusting hole, the cutting edge of the tool at the specific position is the microscope main body. Because it can be seen from, it is easy to adjust.

  According to the tenth aspect of the invention, since the line-of-sight direction of the microscope main body is aligned with the direction in which the blade portion of the cutting tool is viewed from the tangential direction, the blade portion can be easily seen and adjustment work can be easily performed.

  According to the eleventh aspect of the invention, the visual field can be adjusted in the Z-axis direction, so that the adjustment work can be easily performed.

It is a partially cutaway front view showing the tool holder of the present invention. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. FIG. 2 is a cross-sectional view taken along CDE-F in FIG. 1. It is sectional drawing which shows the fixed state of a cutting tool. (A) (B) is an explanatory view showing that the depth of the installation groove part of each phase and the position of the cutting edge part of the cutting tool differ in stages. (A), (B), and (C) are a front view, a side view, and a cross-sectional view taken along the line ABCD showing the first rotating disk. (A), (B), and (C) are a front view, a side view, and a cross-sectional view taken along the line ABCD showing the second rotating disk. It is a top view which shows a microscope apparatus. It is a right view explaining the attachment state of a microscope apparatus and a bit holder. It is a front view which shows the state which positioned the bite holder in the microscope apparatus. It is a top view which shows the state which positioned the bite holder in the microscope apparatus. It is a perspective view which shows the cutting state of a workpiece | work.

  As shown in FIG. 1, the tool holder 100 of the present invention is a rotating disk, and mainly includes an overlapping first rotating disk 1 and second rotating disk 2. In FIG. 1, a part of the first turntable 1 is cut away so that the second turntable 2 below can be seen. In the illustrated example, the first rotating disk 1 and the second rotating disk 2 are metal-made thick disks having the same diameter, and are connected to the rotation shaft of a cutting device (not shown) at the center of each other. For this purpose, shaft holes 1a and 2a are formed penetrating in the thickness direction. The shaft holes 1a and 2a are shaped so that the round hole and the key hole communicate with each other so that the key is inserted into the key groove of the rotary shaft after being inserted into the cylindrical rotary shaft.

  In addition, both the first turntable 1 and the second turntable 2 are connected to each other by screwing in the middle portion in the radial direction. In the illustrated example, eight screwing points are provided at equal angular intervals in the circumferential direction. As shown in FIGS. 4 and 5, a through hole 1 b is formed in the first rotating disk 1, and a female screw hole 2 b is formed in the second rotating disk 2. Then, by screwing the male screw member 1c into the female screw hole 2b through the through hole 1b, the first rotary plate 1 and the second rotary plate 2 are integrated in an overlapping state. In addition, holder-side phase matching holes 1d and 2d are formed penetrating in the thickness direction for each intermediate angle position of the screwing points provided at equal angles along the circumferential direction.

  As shown in FIG. 1 to FIG. 7, the first turntable 1 has a set groove 11 as a fixing part at equal intervals in the circumferential direction in order to fix a plurality of cutting tools 9 to the outer peripheral part on the surface side. Is formed. In the illustrated example, the installation groove portions 11 are formed at intervals of 45 degrees in the circumferential direction, and a total of eight are provided. In order to distinguish the eight installation groove portions 11, for the sake of convenience, there are cases where, for example, a one-phase installation groove portion 11 and a two-phase installation groove portion 11 are described hereinafter. Each installation groove 11 is formed so as to correspond to the shape of the shank 9 a of the cutting tool 9. In the illustrated example, the shank 9 a has a rod-like shape with a rectangular cross section, so that each installation groove 11 has a shape extending radially with respect to the center of the first rotating disk 1. When the shank 9a is placed in the installation groove portion 11, the blade portion 9b of the cutting tool 9 protrudes outward in the radial direction of the first rotating disk 1, and is screwed in this state. For this purpose, each installation groove 11 is formed with a female screw hole 11a at an intermediate portion in the radial direction, and a through hole 9c corresponding to this female screw hole 11a is formed in the shank 9a. Then, the cutting tool 9 is fixed to the installation groove 11 by screwing the male screw member 11b into the female screw hole 11a through the through hole 9c of the shank 9a. However, the diameter of the female screw hole 11a is smaller than the through hole 9c of the shank 9a, and the protruding position of the blade portion 9b can be slightly adjusted in the radiation direction by the difference between the diameters of both holes.

  In addition, a pair of slits 12 are formed in the first rotating disk 1 at positions that are symmetrically separated on both sides in the circumferential direction with the installation groove portion 11 as the center. In the illustrated example, slits 12 are formed every 22.5 degrees in the circumferential direction. Each slit 12 reaches a radially intermediate portion from the outer periphery of the first turntable 1 toward the central portion (however, radially outward from the screwing location between the first turntable 1 and the second turntable 2). While extending, it penetrates in the thickness direction. Then, eight adjustment pieces 13 are formed on the first turntable 1 that are separated in the circumferential direction by a pair of slits 12 provided on both sides of each installation groove 11. Since each adjustment piece 13 is isolated in the circumferential direction, the adjustment piece 13 can be deformed in a direction away from the second rotating disk 2 with its inner peripheral portion as a fulcrum.

  On the other hand, as shown in FIG. 1 to FIG. 5 or FIG. 8, the second turntable 2 has a concave portion 21 formed in a stepped shape at a position corresponding to the adjustment piece 13 on its overlapping surface. . The concave portion 21 is formed wider in the circumferential direction than the adjustment piece 13, whereby the adjustment piece 13 can be deformed in a direction approaching the second rotating disk 2 with its inner peripheral portion as a fulcrum.

  In order to facilitate the deformation of the adjusting piece 13, a deformation promoting groove portion 14 communicating with the inner portion of each slit 12 is circular on the overlapping surface side of the first rotating disk 1 and in the radially intermediate portion. Is formed. Since the inner peripheral part of the adjustment piece 13 becomes thin according to the depth of the deformation promoting groove part 14, the adjustment piece 13 with the thin part as a fulcrum is easily deformed. Note that the above-described screwing point for connecting the first rotating disk 1 and the second rotating disk 2 is provided radially inward of the deformation promoting groove portion 14, whereby deformation of the adjusting piece 13 is radially inward. Therefore, the adjustment piece 13 is easily deformed with the deformation promoting groove portion 14 as a fulcrum.

  Further, in order to determine the position in the thickness direction of each adjustment piece 13 with respect to the second rotating disk 2, a separation screw fixing portion 3 and an approach screw fixing portion 4 are provided on the outer peripheral portion of the adjustment piece 13. More specifically, the separated screwing portion 3 and the approaching screwing portion 4 are provided symmetrically on both sides in the circumferential direction with the installation groove portion 11 as the center. In the example shown in the figure, the remote screwing portion 3 and the approaching screwing portion 4 are provided in a state in which their axes coincide with each other.

  The separation screw fixing portion 3 includes a separation female screw hole 31 and a separation male screw member 32. The separation female screw hole 31 is formed so as to penetrate in the thickness direction of the second rotating disk 2. The separation male screw member 32 has a cylindrical shape, a male screw is formed on the outer peripheral surface of the cylindrical portion, and a fitting for fitting a tool such as a hexagon bolt on the head side of the inner peripheral surface of the cylindrical portion. A hole 41a is formed, and an approaching female screw hole 41 is formed on the front side of the inner peripheral surface.

  In the case where the adjustment piece 13 is deformed in the direction away from the second rotating disk 2 by the separation screw fixing portion 3, as shown in FIG. 4, the separation male screw member 32 is tightened and the adjustment piece 13 is pushed up. At this time, the distal end of the separated male screw member 32 is positioned above the overlapping surface of the second rotary disk 2. In the drawings, the amount of deformation of the adjustment piece 13 is larger than the actual amount for easy understanding.

  The approaching screwing portion 4 includes an approaching female screw hole 41, an approaching male screw member 42, and an approaching through hole 43. The approaching female screw hole 41 is formed on the inner peripheral surface of the separated male screw member 32 as described above. Further, the approaching through hole 43 is formed in the first rotating disk 1 with a counterbore. The approaching male screw member 42 is screwed into the approaching female screw hole 41 through the approaching through hole 43.

  When the adjusting piece 13 is deformed by the approaching screwing portion 4 in a direction approaching the second rotating disk 2, the distal end of the separated male screw member 32 is overlapped with the second rotating disk 2 as mainly shown in FIG. 5. It is positioned below the mating surface, the approaching male screw member 42 is tightened and screwed into the approaching female screw hole 41 of the separated male screw member 32, and the adjustment piece 13 is submerged in the recess 21 of the second rotating disk 2. . In this way, the adjustment piece 13 is sandwiched between the head of the approaching male screw member 42 and the tip of the separated male screw member 32, and the adjustment piece 13 is positioned with respect to the second rotating disk 2. Become.

  When the separation screw fixing part 3 and the approaching screw fixing part 4 are used, the position of the rotating disk in the thickness direction of the blade part 9b of the cutting tool 9 fixed to the adjustment piece 13 can be finely adjusted. Incidentally, when the tool holder 100 to which the tool 9 is fixed is rotated around the shaft holes 1a and 2a, the blade portion 9b of the tool 9 draws a circular locus. The blade portion 9b of the cutting tool 9 seen from the tangential direction with respect to this locus has a cross-sectional shape (V-shape). Therefore, the position of the apex of the character moves in the thickness direction of the rotating disk according to the amount of deformation of the adjustment piece 13.

  By the way, as shown in FIG. 6 (a), the installation groove 11 of each phase is processed so that the depth is gradually increased in steps by a constant step toward the first to eighth phases. The same type of cutting tool 9 is fixed to each installation groove 11. However, each of the eight installed groove portions 11 and the cutting tool 9 that are actually machined includes a machining error unlike the design. Therefore, by adjusting the position in the thickness direction with respect to the adjustment piece 13 of each phase while using the separation screw fixing part 3 and the approach screw fixing part 4, as shown in FIG. From the 1st phase to the 8th phase, the apex of the blade portion 9b is lowered step by step in a certain step.

  An intermediate piece 15 having substantially the same shape with no cutting tool 9 is interposed between two adjustment pieces 13 adjacent in the circumferential direction. The intermediate piece 15 has a concave portion 21 and a separation screw fixing portion. 3 or the approaching screw fixing part 4 is not provided, so that it does not deform in the thickness direction. However, although not shown in the drawings, it is desirable to simply screw the intermediate piece 15 and the second rotating disk 2 together.

  9 to 12 show a microscope apparatus 200 that is used when adjusting the attachment position of the blade portion 9b of the cutting tool 9 fixed to the cutting tool holder 100 in the thickness direction of the cutting tool holder 100. FIG.

  The microscope apparatus 200 is configured by assembling a work table 6, a microscope main body 7, and a visual field adjustment mechanism 8 that adjusts the visual field visible from the microscope main body 7 to the pedestal 5. Hereinafter, each component will be described in detail.

  The pedestal 5 is a flat plate on which the work table 6 and the visual field adjustment mechanism 8 are attached.

  The work table 6 includes a block-shaped base 61 placed on the base 5 and a table main body 62 placed on the base 61. The base 61 and the table main body 62 are fixed to the base 5 with screws.

  The table main body 62 is a disk whose diameter is shorter than that of the bite holder 100, and a central shaft 62a projects upward at the center thereof. The central shaft 62 a has a cylindrical shape that fits into the round holes of the shaft holes 1 a and 2 a of the tool holder 100. Further, similarly to the holder-side phase matching holes 1d and 2d, the table body 62 is formed with a table-side phase matching hole 62b penetrating at the same equal angle along the circumferential direction.

  In the microscope main body 7, the lens barrel 71 is bent in an L shape, and the lower portion (portion on the objective lens side) of the lens barrel 71 is attached to the visual field adjustment mechanism 8. Further, when looking into the microscope body 7, the direction of the line of sight is the tangential direction (X, which will be described later). (Axial direction) from the viewing direction. In the illustrated example, the eyepiece lens side of the lens barrel 71 is attached so as to face the vertical direction (Z-axis direction described later).

  The visual field adjustment mechanism 8 is capable of rotating the microscope main body 7 to the adjustment mechanism main body 8a, the adjustment mechanism main body 8a for adjusting the position of the microscope main body 7, the arm 8j for supporting the adjustment mechanism main body 8a away from the base 5, and the adjustment mechanism main body 8a. And an attachment portion 8k that can be fixed at a desired angle.

  The adjustment mechanism main body 8a is an alignment mechanism that can move the stage 85 in two general orthogonal biaxial directions. The X-axis direction of the two axis directions is aligned with the line-of-sight direction seen when looking through the microscope body 7, and the Z-axis direction of the two axis directions is the thickness direction of the tool holder 100 (the height direction in the illustrated example). ). Therefore, the adjustment mechanism main body 8a includes an X-axis direction adjustment mechanism (focus adjustment mechanism) 8x and a Z-axis direction adjustment mechanism 8z.

  In the illustrated example, the Z-axis direction adjusting mechanism 8z includes a plate-like base 81 fixed to the arm 8j, a Z-axis slider 82 guided so as to be movable in the Z-axis direction with respect to the base 81, and a Z-axis. A manual Z-axis operating mechanism 83 for moving the slider 82 by a desired amount is provided. The Z-axis operation mechanism 83 is a general mechanism that converts the rotary motion of the knob 83a into the linear motion of the pusher 83b. More specifically, in the illustrated example, one piece of an L-shaped plate 83c is fixed to the upper surface of the Z-axis slider 82, and the other piece is disposed at a position away from the upper surface of the base 81. When 83a is turned, the pusher 83b moves in the X-axis direction with respect to the plate 83c according to the turning direction, and as a result, the X-axis slider 84 is moved by the amount of movement. A scale for grasping the amount of movement is provided on the knob 83a.

  The X-axis direction adjusting mechanism 8x is the same mechanism as the Z-axis direction adjusting mechanism 8z described above, and is guided so as to be movable in the X-axis direction with respect to the Z-axis slider 82 and the Z-axis slider 82. An X-axis slider 84, a stage 85 fixed to the X-axis slider 84, and a manual X-axis operation mechanism 86 are provided.

  The microscope main body 7 is fixed to the stage 85 via the attachment portion 8k. The attachment portion 8k is a circular ring, and this ring is fixed to the stage 85. In addition, a ring groove (not shown) that is rotatably fitted in the ring is formed on the outer peripheral surface of the lens barrel portion 71 on the objective lens side. And the angle of the lens-barrel part 71 is fixed by screwing the lens-barrel part 71 to the mounting part 8k from the outer side of the mounting part 8k.

  Using the above-described microscope apparatus 200 in the following procedures (1) to (8), the height of the blade portion 9b is lowered stepwise in a certain step as designed for the cutting tool 9 of 1 to 8 phases. Set exactly as follows.

  (1) Place the bite holder 100 on the table body 62 of the work table 6. More specifically, the shaft holes 1a and 2a of the tool holder 100 are inserted into the central shaft 62a of the table body 62. In addition, the cutting tool 9 is previously placed on each installation groove 11 of the cutting tool holder 100 and temporarily fixed. Further, the separated male screw member 32 of the separated screw fixing portion 3 and the approaching male screw member 42 of the approaching screw fixing portion 4 are tightened in advance, and this tightening state is a state where the adjusting piece 13 is not deformed, that is, The first turntable 1 and the second turntable 2 are made to be in a state where they are simply overlapped.

  (2) The tool holder 100 is rotated by a predetermined angle around the center axis 62a, and the holder-side phase adjusting holes 1d and 2d of the tool holder 100 are aligned with the table-side phase adjusting holes 62b of the work table 6 below them. The positioning pin P is inserted into one position of the matched phase adjusting hole, and the tool holder 100 is held unrotatable.

  (3) In this way, the blade portion 9 b of one (specific) cutting tool 9 out of the eight cutting tools 9 in total is arranged in the line-of-sight direction of the microscope body 7. In this description, it is assumed that the blade portion 9b of the one-phase cutting tool 9 is arranged in the viewing direction. Therefore, when looking into the microscope main body 7, the blade portion 9b of the one-phase cutting tool 9 is in the visual field. Therefore, when the blade portion 9b appears blurry, the knob of the X-axis operation mechanism 86 is operated so that the "<"-shaped portion that is the tip of the blade portion 9b can be clearly seen from the side surface. Adjust the focus.

  (4) Next, the position of the blade portion 9b is adjusted for the one-phase cutting tool 9. When looking into the microscope main body 7, in the example of FIG. 12, the Y axis and the Z axis are arranged in a circular field of view so as to look like a “ten” in the horizontal and vertical directions. In addition, scales are provided on the Y axis and the Z axis. Therefore, this Y-axis serves as a standard for adjusting the projection amount of the blade portion 9b (projection amount from the first rotating disk 1), and the Z-axis serves as a criterion for matching the height of the blade portion 9b. Then, in the illustrated example, the vertex of the “<” character is aligned with the Y-axis predetermined scale (the third scale on the right side from the position where the Y-axis and Z-axis intersect). As a specific operation, the male screw which temporarily adjusted the bite 9 by operating the knob 83a of the Z-axis operating mechanism 83 so that the apex of the "<" character is placed on the Y-axis. The member 11b is loosened and the cutting tool 9 is moved in the Y-axis direction within the installation groove 11 to align the apex of the blade part 9b with a predetermined scale on the Y-axis, and then the male screw member 11b is firmly tightened and fixed. This completes the adjustment of the position of the one-phase byte 9.

  (5) Subsequently, the position of the blade portion 9b is adjusted for the two-phase cutting tool 9. First, the microscope body 7 is lowered by a predetermined step as designed by operating the knob 83a of the Z-axis operation mechanism 83 while observing the scale. As a result, the Y axis of the visual field seen when looking into the microscope body 7 is lowered by a certain step as designed compared to before operating the Z-axis operation mechanism 83.

  (6) Then, the positioning pin P is removed and the tool holder 100 is rotated so that the tool 9 entering the field of view of the microscope body 7 has a two-phase structure, and the tool holder 100 is rotated again and positioned in the phase matching holes 1d, 2d, and 62b. Insert the pin P. Since the bite 9 is fixed at equal angles and the phase alignment holes are formed at the same equal angle, if the positioning pin P is inserted, the focus is already in place and the blade portion 9b can be clearly seen. It is like that.

  (7) When the apex of the blade portion 9b deviates downward from the Y-axis, the two approaching male screw members 42 located on both sides of the cutting tool 9 are loosened and then the two separated male screw members 32 are twisted deeply. Then, the adjustment piece 13 is pushed up so that the apex is arranged on the Y axis, and the two approaching male screw members 42 are tightened again. On the other hand, when the apex of the blade portion 9b is deviated upward from the Y-axis, the two separated male screw members 32 are loosened and then the two approaching male screw members 42 are deeply screwed to depress the adjustment piece 13. Then, the apex is arranged on the Y axis, and the two separated male screw members 32 are tightened again. In addition, when the apex is deviated from the position of the predetermined scale on the Y-axis, the male screw member 11b temporarily fixing the cutting tool 9 is loosened, and the cutting tool 9 is moved in the installation groove 11 so that the apex of the blade 9b is reached. Is adjusted to the position of the predetermined scale on the Y axis, and then the male screw member 11b is firmly tightened and fixed.

  (8) For the three-phase to eight-phase cutting tool 9, the position of the blade portion 9 b is adjusted while repeating the procedure in the manner of (5) and (6) above. Is set to be lowered step by step in a certain step as designed. By the above procedure, a cutting turntable in which the cutting tool 9 and the cutting tool holder 100 are integrated is completed.

  When the completed cutting turntable is fixed to the rotating shaft of the cutting apparatus and the workpiece W is cut, eight V-grooves are formed at a constant pitch by one cutting.

  The present invention is not limited to the above embodiment. For example, the fixing portion may not be the installation groove portion 11. For example, a plurality of female screw holes may be formed in the first rotating disk 1 so as to fix the shank 9 a of the cutting tool 9 at two or more locations. In addition, the depth of the installation groove 11 as the fixing portion was changed stepwise from 1 phase to 8 phase because the same type of bit 9 was used. Therefore, when using many types of cutting tools 9 (thickness of the shank 9a varied in stages), the depth of the installation groove 11 may be made uniform.

  In addition, the slit 12 for forming the adjustment piece 13 has a shape extending radially from the center of the first rotating disk 1. For this reason, the adjustment piece 13 is fan-shaped, that is, the width of the adjustment piece 13 is the inner circumference. Although the side is narrow and the outer peripheral side is wider, the present invention is not limited to this. For example, the adjustment piece 13 is the same on the inner peripheral side and the outer peripheral side so that the pair of slits 12 constituting the adjustment piece 13 of each phase are parallel. You may make it become width.

  Further, the remote screwing part 3 and the approaching screwing part 4 may be provided at locations where the axes of the screws are different. In this case, the approaching female screw hole 41 is formed in the second rotating disk 2.

  Further, the separation screw fixing portion 3 is configured to form a separation female screw hole 31 in the adjustment piece 13, and to tighten the separation male screw member 32 from the surface of the adjustment piece 13 so as to push in the second rotary disk 2. May be.

  Furthermore, the microscope apparatus 200 is not limited to a type that supports the tool holder 100 horizontally, but may be a type that supports the tool holder 100 in the vertical direction, for example. The intermediate piece 15 may be used as the adjustment piece 13.

100 byte holder 1 first rotating disk 1a shaft hole 1b through hole 1c male screw member 1d holder side phase adjusting hole 11 installation groove (fixed part)
11a female screw hole 11b male screw member 12 slit 13 adjustment piece 14 deformation promoting groove 15 intermediate piece 2 second rotating disk 2a shaft hole 2b female screw hole 2d holder side phase matching hole 21 recess 3 remote screw fixing part 31 remote female screw hole 32 remote male screw member 4 approaching screw fixing part 41 approaching female screw hole 41a fitting hole 42 approaching male screw member 43 approaching through hole 5 base 6 work table 61 base 62 table body 62a center axis 62b table side phase matching hole 7 microscope body 71 Lens barrel portion 8 Field adjustment mechanism 8a Adjustment mechanism body portion 8j Arm 8k mounting portion 8x X-axis direction adjustment mechanism 8z Z-axis direction adjustment mechanism 81 Base 82 Z-axis slider 83 Z-axis operation mechanism 83a knob 83b pusher 83c plate 84 X-axis slider 85 stage 86 X-axis operation mechanism P Positioning pin W Workpiece 9 Bit 9a Shank 9b Blade portion 9c Through hole 00 microscope apparatus

Claims (11)

A shaft hole for connecting to the rotating shaft is provided at the center of the rotating disk, and an outer peripheral part of the rotating disk is provided with a fixing part for fixing a plurality of bits at intervals along the circumferential direction, In the tool holder that makes it possible to adjust the position of the blade part of each tool in the thickness direction of the turntable,
The turntable includes a first turntable and a second turntable that overlap,
The first rotating disk is provided with slits from the outer periphery toward the central portion at positions away from both sides in the circumferential direction around the fixed portion, and is provided in the circumferential direction by a pair of slits provided on both sides of the fixed portion. Forming an isolated adjustment piece,
A bite holder characterized by having at least one of a first turntable and a second turntable having a separation screw fixing portion that is provided so as to be deformable in a direction separating the adjustment piece from the second turntable. A shaft hole for connecting to the rotating shaft is provided at the center of the rotating disk, and an outer peripheral part of the rotating disk is provided with a fixing part for fixing a plurality of bits at intervals along the circumferential direction, In the tool holder that makes it possible to adjust the position of the blade part of each tool in the thickness direction of the turntable,
The turntable includes a first turntable and a second turntable that overlap,
The first rotating disk is provided with slits from the outer periphery toward the central portion at positions away from both sides in the circumferential direction around the fixed portion, and is provided in the circumferential direction by a pair of slits provided on both sides of the fixed portion. Forming an isolated adjustment piece,
At least one of the overlapping surfaces of the first rotating disk and the second rotating disk is provided with a recess that allows the adjustment piece to be deformed in a direction approaching the second rotating disk,
A tool holder having an approach screw fixing portion provided on at least one of the first turntable and the second turntable so that the adjustment piece is deformable in a direction approaching the second turntable. At least one of the overlapping surfaces of the first rotating disk and the second rotating disk is provided with a recess that allows the adjustment piece to be deformed in a direction approaching the second rotating disk,
2. The tool holder according to claim 1, further comprising an approach screw fixing portion provided on the at least one of the first turntable and the second turntable so as to deform the adjustment piece in a direction approaching the second turntable.   The bite holder according to claim 1, 2 or 3, wherein the first rotating disk has a deformation promoting groove part communicating with a pair of slits on both sides of the adjustment piece in an inner peripheral part of the adjustment piece.   5. The tool holder according to claim 1, wherein the first rotating disk and the second rotating disk are screwed to the inner peripheral side in the radial direction from each adjustment piece.   6. The tool holder according to claim 1, 2, 3, 4, or 5, wherein each adjustment piece is provided with an installation groove portion as a fixing portion, and the installation groove portion of each adjustment piece has a different groove depth. The approach screwing portion and the remote screwing portion are provided at positions where the axes of each other coincide with each other,
The separation screw fixing portion is composed of a separation male screw member and a separation female screw hole,
The separation male screw member has a cylindrical shape, a male screw is formed on the outer peripheral surface, a tool fitting hole is formed on the head side of the inner peripheral surface, and the tip of the inner peripheral surface is formed. An approach female screw hole is formed on the part side,
The separated female screw hole is formed in the second turntable,
The approaching screw fixing part is composed of an approaching male screw member, an approaching female screw hole, and an approaching through hole through which the shaft part of the approaching male screw member passes,
The approaching male screw member is screwed into the approaching female screw hole on the inner peripheral surface of the separated male screw member,
The bite holder according to claim 1, 2, 3, 4, 5 or 6, wherein the access through hole is formed in the first rotating disk. The first rotating disk has adjustment pieces formed at equal angles along the circumferential direction,
The first rotating disk and the second rotating disk are formed with holder side phase adjusting holes penetrating at equal angles along the circumferential direction. , 6 or 7 bite holder. A work table for placing the tool holder according to claim 8, wherein the tool holder is fixed, a microscope main body for viewing the blade portion of the tool at a specific position, and a visual field adjustment mechanism for adjusting the visual field seen from the microscope main body,
A work table is attached to the pedestal, and the microscope body is attached via a visual field adjustment mechanism.
The work table includes a table body and a central axis that protrudes from the table body, and the table body has a table-side phase matching hole,
With the shaft hole formed in the first rotating disk and the second rotating disk inserted with respect to the central axis, the bite holder is supported rotatably about the central axis,
It has positioning pins that are inserted into the table-side phasing hole and the holder-side phasing hole.
A microscope apparatus, wherein a cutting edge of a cutting tool at a specific position is positioned so as to be visible from a microscope main body in a state where a positioning pin is inserted. The line-of-sight direction of the microscope body matches the direction in which the cutting edge of the cutting tool at a specific position in the circular locus drawn by the cutting tool blade when rotating the cutting tool holder is viewed from the tangential direction,
The microscope apparatus according to claim 9, wherein the visual field adjustment mechanism includes a focus adjustment mechanism capable of moving the microscope main body in the X-axis direction that is a viewing direction of the microscope main body.   11. The microscope apparatus according to claim 10, wherein the visual field adjustment mechanism includes a Z-axis direction adjustment mechanism capable of moving the microscope main body in the Z-axis direction that is a thickness direction of the tool holder.

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