JP2015134391A - Throw-away tip set for bevelling processor and bevelling processor using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with the relative adjustment of a relative gap between a throw-away tip and work-piece guiding means when different R dimensions are to be changed.SOLUTION: A throw-away tip set for a bevelling processor, which consists of a plurality of throw-away tips that have attachable to and detachable from the tip holding part of a bevelling processor and replaceable with each other with different cutting radiuses or different cutting dimensions, comprises a workpiece bevelling blade which keeps two guide virtual lines in a plane view for guiding a workpiece to the throw-away tips almost orthogonal with their intersections at the same positions in the plurality of replaceable throw-away tips, and is guided to the intersections.

Description

  The present invention is a chamfering process including a throwaway tip set for a chamfering apparatus, which is used in a chamfering apparatus and includes a plurality of interchangeable throwaway chips, and a throwaway tip of the throwaway chipset for the chamfering apparatus. Relates to the device.

  2. Description of the Related Art Conventionally, various cutting devices that enable chamfering of a workpiece are known. Among such cutting devices, particularly those having a configuration specialized for chamfering, one of the bases for feeding a metal material or a non-metal material can be rotated with respect to the fixed shaft, and the other one is a butterfly. A screw that can be attached and detached by a screw and that can be moved up and down to the lower part of a base fixed by a butterfly screw and finely adjusts, and a portion that contacts the feed base at the tip is made spherical, and the rotary handle of the screw and the screw are fixed. And a blade attachment shaft directly connected to the main shaft of the motor in the middle of the rotatable fixed shaft and the detachable butterfly screw. The blade attachment shaft is used to feed the workpiece. A chamfering apparatus characterized by providing an adjustment mechanism for moving a motor in the front-rear direction with respect to a table is known (for example, see Patent Document 1).

  In addition, as a throw-away tip for cutting metal or the like, one having a round chamfering blade of the same size around the center mounting hole is well known (for example, see Patent Document 2).

  Further, as an invention relating to a curved surface (R-surface) machining apparatus made by the present applicant, a driving motor is fixed in a housing in an inclined state of 45 degrees, and a cutting blade is horizontally mounted on a shaft of the driving motor. A curved cutter that is fixed so as to be attached to the workpiece is mounted on the curved surface of the workpiece support table, which will be described later, and the workpiece support table has a V-shaped support surface in the V shape. 2. Description of the Related Art A curved surface removing device having a configuration in which a curved surface machining space is formed in a central portion in a longitudinal direction of a top portion and is attached to a housing so as to be adjustable and movable in the vertical and horizontal directions is known (for example, a patent Reference 3).

  FIG. 1 of the same document also discloses a throw-away tip for R chamfering. One throwaway tip has blades with different cutting radii. All the blades are notched so as to form a concave surface from the side end face of the throw-away tip. That is, if the cutting radius is relatively small, the notch is small and the opening on the side surface of the throw-away tip is small. If the cutting radius is relatively large, the notch becomes large, and the opening on the side surface of the throw-away tip becomes large.

JP-A-9-234616 Registered Design No. 932559 Japanese Utility Model Publication No. 5-50519

  The chamfering apparatus disclosed in the above-mentioned Patent Document 1 can be easily replaced with, for example, a chamfering chamfer, an R chamfering chamfer, or an irregularly shaped chamfering cutting blade (throw away tip). Yes.

  The chamfering device enables a throw-away tip to be attached / detached by using a butterfly screw as a center for a workpiece feed base around one rotation axis, and a V block fixing base for a butterfly screw mounting portion. A double nut type screw that can be finely adjusted is arranged in the lower part of the screw, and the chamfering width is changed by adjusting the screw.

  In addition, such a chamfering apparatus can replace a throw-away tip as disclosed in Patent Document 2 with a plurality of different R dimensions (cutting radius dimensions) to obtain blades having different cutting radius dimensions. It is normal to exchange.

  And it is necessary to adjust the chamfering width every time the throwaway tip for chamfering is replaced. When the throwaway tip for R chamfering is used, the throwaway tip having a different R dimension may be exchanged, and the throwaway tip for R chamfering is exchanged every time switching to one with a different cutting radius dimension. However, a screw adjustment work is required to adjust the distance between the throw-away tip and the workpiece relatively each time, which is very troublesome.

  Further, in the chamfering apparatus for R chamfering disclosed in Patent Document 3, the vertical and horizontal two axes are used each time in order to relatively adjust the distance between the throw-away tip and the workpiece. Adjustments must be made, and it can be cumbersome as well.

As described above, even if the throw-away tip is provided with different blades on one throw-away tip, the throw-away tip is provided with a plurality of the same blades and replaced with a blade of a different size. Even in this case, the blades of different sizes are formed with an R shape or the like as required from the edge side of the throw-away tip.
Even when the throwaway tip itself has the same external size, the distance between the throwaway tip and the work piece is relatively adjusted each time the tip is replaced with one having a different sized blade. There are disadvantages that need to be done.

  On the other hand, it is considered that the chamfering processing apparatus is very desirable if it is cheaper and lighter.

  The present invention has been made in view of the above circumstances, and when performing a change to a different R dimension in R chamfering, a change to a different shape such as a C surface, a R surface, or the like, the throw-away tip and the work piece are processed. It is an object of the present invention to provide an excellent throw-away tip for a chamfering apparatus that can eliminate the need for adjustment of a relative distance from an object and a chamfering apparatus that includes the throw-away tip.

  Moreover, this invention makes it the subject which invention intends to solve about provision of the said chamfering apparatus to provide a cheaper and lighter chamfering apparatus.

The present invention is a throw-away tip set for a chamfering apparatus comprising a plurality of interchangeable throw-away chips having different cutting radii or different cutting dimensions, which can be attached to and detached from the chip holding part of the chamfering processing apparatus,
Two guide virtual lines in plan view for guiding the workpiece to the throw-away tip are substantially orthogonal, and the intersection is the same position in the plurality of replaceable throw-away tips,
In addition, a throw-away tip set for a chamfering apparatus characterized in that a chamfering blade for a workpiece guided toward the intersection is provided as a means for solving the problem.

  Further, the present invention is based on the configuration of the above invention, and a throwaway tip set for a chamfering apparatus having a clearance angle that is continuous to the opening side from the chamfering blade is a means for solving the problem. .

  Further, in the present invention, on the premise of the configuration of any one of the above inventions, a throw-away tip set in which the chamfering blade is an R chamfering blade is used as a means for solving the problem.

  Further, in the present invention, instead of the configuration of the invention, the chamfering blade is a C chamfering blade, and a throw away chipset is provided as means for solving the problem.

  Furthermore, the present invention is a chamfering device provided with cutting means capable of replacing the throw-away tip and having a workpiece guide means, and has means for adjusting the distance between the throw-away tip and the guide means. In addition, a chamfering apparatus comprising a throw-away tip in any of the above-mentioned throw-away tip sets is a means for solving the problem.

  According to the present invention, the throw-away tip set for a chamfering apparatus, which is detachable from the chip holding portion of the chamfering apparatus and includes a plurality of interchangeable throw-away chips having different cutting radii or different cutting dimensions. The two guide virtual lines in plan view for guiding the workpiece to the throw-away tip are substantially orthogonal, and the intersection is the same position in the plurality of replaceable throw-away tips, and to the intersection Since the throwaway tip set for a chamfering device has a chamfering blade for the workpiece guided toward the workpiece, the throwaway tip having a different cutting radius in the throwaway tip set for the chamfering device can be appropriately replaced. However, the positioning of the workpiece is the same as before the replacement of the throw-away tip. Possible in to become. Accordingly, the relative position between the throw-away tip and the workpiece is not changed, the adjustment means and the adjustment operation are unnecessary, and the handling can be facilitated.

  Further, according to the present invention, it can also be used for an existing chamfering apparatus having a relative position adjusting means between the throw-away tip and the guide means, and by using the existing chamfering apparatus, The need to use the adjusting means can be eliminated, and the adjusting means and the adjusting operation can be eliminated.

  According to the present invention, on the premise of the configuration of the present invention, by having a clearance angle continuous from the chamfering blade to the opening side, the work effect after the above invention is exhibited and the workpiece after the chamfering process is obtained. The possibility of generating burrs or the like can be greatly reduced.

  Further, according to the present invention, on the premise of the configuration of any one of the above inventions, the chamfering blade is an R chamfering blade or a C chamfering blade, thereby performing chamfering according to the shape of each chamfering blade. The effects of the present invention can be obtained.

  Further, according to the present invention, there is provided a chamfering apparatus provided with cutting means capable of replacing the throw-away tip and having a guide means for the workpiece, wherein the distance between the throw-away tip and the guide means can be adjusted. When the throw-away tip in the throw-away tip set for the chamfering processing device is replaced by the chamfering processing device provided with the throw-away tip in any one of the throw-away tip sets for the chamfering processing device. However, it can be performed without adjusting the distance between the throw-away tip and the guide means.

  In addition, according to the present invention, since the configuration does not include means for adjusting the distance between the throw-away tip and the guide means, it is possible to provide a cheap and lightweight chamfering apparatus with a simpler structure. .

It is a top view of a throw away tip set provided with a small diameter, a medium diameter, and a large diameter R chamfering blade concerning Example 1 of the present invention. It is explanatory drawing which shows the relationship between the throw away tip which concerns on Example 1 of this invention, and the guide surface in a chamfering processing apparatus. 1 is a schematic partial cross-sectional view of a chamfering apparatus according to an embodiment of the present invention. It is a top view of a throwaway chip set provided with a small C blade, a medium C blade, and a large C blade according to Example 2 of the present invention.

  According to the present invention, the workpiece is composed of a plurality of interchangeable throw-away tips having different cutting radii or different cutting dimensions, which can be attached to and detached from the tip holding portion of the chamfering processing apparatus, The two guide imaginary lines in plan view that guide to the chip are substantially orthogonal, the intersection is the same position in the replaceable throw-away tips, and the workpiece is guided toward the intersection By providing the chamfering blade, the relative position between the throw-away tip and the workpiece is not changed, the adjustment means and the adjustment operation can be made unnecessary, and the chamfering blade continues from the chamfering blade to the opening side. Excellent chamfering that can greatly reduce the possibility of burrs and the like on workpieces after chamfering by having a clearance angle To achieve a device for a throw-away chip set.

  As shown in FIG. 1, the throw-away tip set 1 for a processing apparatus according to the first embodiment of the present invention includes a throw-away tip 1 a having a small-diameter R chamfer blade 10 and a throw-away tip having a medium-diameter R chamfer blade 10. 1b, which is composed of three throw-away tips 1a, 1b, 1c for R chamfering composed of a throw-away tip 1c having a large-diameter R chamfering blade 10. At the time of use, any one of these is selected and used.

Each throw-away tip 1a, 1b, 1c is provided with a mounting hole 12 serving as a female screw hole in the center of the rectangular in plan view, and has an R-shaped chamfering blade 10 having the same shape corresponding to the R dimension so as to open on each side surface of the four sides. Is provided.
The throw-away tip 1a having the small-diameter R chamfering blade 10 and the throw-away tip 1b having the medium-diameter R-chamfering blade 10 each have a flat relief surface 11 continuously on both sides of the R-chamfering blade 10. These are configured to open to the side surface.
The throw-away tips 1a and 1b are continuous from the flank 11 and have a gently curved surface at the boundary with each side surface. The throwaway tip 1c is continuous from both ends of the R chamfering blade, and has a gently curved surface at the boundary with the side surface of the throwaway tip 1c.
These curved surfaces function as the flank 11b.
That is, the throw-away tips 1a and 1b can suppress the occurrence of burrs and the like by the flank 11 and the flank 11b continuous therewith. Further, the throw-away tip 1c can suppress the occurrence of burrs and the like by the flank 11b.

The throwaway tips 1a, 1b, and 1c constituting the chamfering apparatus throwaway tip set 1 according to the first embodiment have common guide imaginary lines L1 and L2.
This is the most characteristic feature of the present invention.
As shown in FIG. 2, the guide virtual lines L1 and L2 are virtual lines L1 and L2 which are expressed in a state in which the throwaway tip is viewed in plan from the surface of the guide unit 20 where the guide surface 20a is extended. . The guide virtual lines L1 and L2 are specifically specified by the configuration of the chamfering apparatus D.
In the throw-away tip set 1 related to the throw-away tip set for the chamfering bad device in Example 1, the guide virtual lines L1 and L2 are orthogonal to each other, and the clearance angle is formed by 5 ° to the left and right. Yes.
Below, the structure of the chamfering processing apparatus D provided with the throw-away tip set 1 for processing apparatuses which concerns on Example 1 is demonstrated.

As shown in FIG. 3, the chamfering apparatus D includes a metal casing 21, guide means 20 provided at one end of the casing for guiding a workpiece, a throw-away tip 1a, And a drive unit 24 having a holding part 22 for holding the throw-away tip 1a and a motor 23 for rotating the throw-away tip 1a via the holding part 22.
Note that there is no means for adjusting the relative distance between the guide means 20 and the throw-away tip 1a.

In the first embodiment, the guide means 20 is two guide plates having a guide surface 20a, that is, a first guide plate d1 and a second guide plate d2.
The guide means 20 is arranged at a position where the guide surfaces 20a are orthogonal to each other. However, at the place where the throw-away tip 1a is installed, the guide means 20 is located at the boundary between the first guide plate d1 and the second guide plate d2. A notch is formed in each, and an opening 20b is provided.

  The holding part 22 is housed in the chamfering processing apparatus D and holds the throw-away tip 1a. Then, by arranging the throwaway tip 1a so as to be located in the opening 20b or in the vicinity thereof, the intersection C of the virtual guide lines L1, L2 from the first guide plate d1 and the second guide plate d2 is It is assumed that all the throwaway chips 1a, 1b, 1c are in common positions.

As described above, the intersection C between the virtual guide lines L1 and L2 is common to all the throwaway tips 1a, 1b, and 1c of the throw-away tip set 1 for a processing apparatus. Since the away tips 1a, 1b, and 1c rotate at the time of cutting, the intersections C of the guide virtual lines L1 and L2 at the positions of the throw away tips 1a, 1b, and 1c at the time of contact with the workpiece W are all slow. It is in a common position in the away chips 1a, 1b and 1c.
In the first embodiment, the specific position of the intersection C between the virtual guide lines L1 and L2 is a position on the straight line connecting the midpoints of the sides facing each other in plan view and close to the mounting hole 12. Yes. By adopting this position, the distance to the edge of the throw-away tip can be increased, so that there is an advantage that a large number of different chamfers having different R dimensions can be obtained.

With the above configuration, the chamfering apparatus D according to the present embodiment is turned on, and the holding unit 22 and the throw-away tip 1a (1b, 1c) held by the driving unit 24 are rotated by the operation of the driving unit 24. Then, the workpiece W is brought into contact with the guide means 20 from the one end side of the guide means 20 and slid, so that the throw-away tip 1a (1b, 1c) and the work piece are processed at the position of the opening 20b. Chamfering can be performed by contacting the object W.
Further, there is no need to adjust the relative position between the advance throw-away tip 1a (1b, 1c) and the workpiece W.

When replacing the throw-away tip 1a (1b, 1c), a part of the housing 21 is opened in a state where the power is not turned on, and in this embodiment, the throw-away tip 1a (1b) is screwed. 1c) is removed and replaced with a new throw-away tip 1b (1a, 1c). Then, the casing 21 is closed.
By this operation, it is not necessary to change the relative position between the throw-away tip 1b (1a, 1c) and the workpiece W, and the handling can be made very easy.

  As shown in FIG. 4, the throw-away tip set 1 for a processing apparatus according to the second embodiment of the present invention includes a throw-away tip 1d having a small C blade, a throw-away tip 1e having a medium C blade, It is composed of three throwaway tips 1d, 1e, and 1f for chamfering, which are composed of a throwaway tip 1f having a C-shaped blade.

Each throw-away tip 1d, 1e, 1f according to the second embodiment has a mounting hole 12 serving as a female screw hole in the center of the rectangular shape in plan view, and corresponds to the width dimension of the C surface so as to open on each side of the four sides. The C-shaped chamfering blade 13 having the same shape is provided.
A curved relief surface 11b is formed at the boundary between the opening and the side surface of the C-chamfering blade 13.
In addition, a flank 11c on the curved surface is formed at the boundary between the surfaces of the C chamfering blade 13.

These throw-away chips 1d, 1e, and 1f constituting the processing apparatus throw-away chip set according to the second embodiment have common guide virtual lines L1 and L2.
Also in the second embodiment, the same chamfering apparatus D as in the first embodiment can be used. Further, although the shape of the chamfer is different from that of the first embodiment, other configurations, functions, and effects are common.

In addition, as shown in the first and second embodiments, the throwaway tip set 1 for a chamfering apparatus according to the present invention is configured such that all of the throwaway chips constituting the throwaway chip 1 for a chamfering apparatus are R chamfered. It does not need to be unified with either the blade or the C chamfering blade. That is, the intersection point common to both the throwaway tip for C chamfering and the throwaway tip for R chamfering can be provided.
Further, the throw-away tip is not limited to the R surface and the C surface, and may be a chamfer having a special shape.

  Assuming that the present invention is used in a chamfering apparatus, two guide virtual lines L1 and L2 in a plan view for guiding the workpiece W to the throw-away tip intersect, and the intersection C point is the chamfering point. The throw-away tip is the same position in a plurality of interchangeable throw-away tips, and the throw-away tip only has to have a chamfering blade for the workpiece W guided toward the intersection C.

  In addition, the specific position of the intersection C of the guide virtual lines L1 and L2 is not limited to the first and second embodiments, and may be any common place. However, as shown in Example 1 and Example 2 above, the specific position of the intersection C of the guide virtual lines L1 and L2 is on a straight line connecting the midpoints of the opposing sides in plan view, and When the position is close to the mounting hole 12, the distance to the edge of the throw-away tip can be made larger, so that a larger cutting dimension is possible, and moreover, it is possible to chamfer many different cutting dimensions. Excellent effect is obtained.

  In any of the above-described embodiments, the throw-away tip set 1 for a chamfering apparatus is constituted by three throw-away tips. However, in the present invention, it may be constituted by four or more throw-away tips.

  Further, the detailed shape of the chamfering blade, for example, the inclination angle of the blade and the presence or absence of a flank can be freely changed, and the present invention includes the scope of these changes.

  Moreover, the form of manufacture and sale of the throw-away tip set 1 for a chamfering processing apparatus according to the present invention can be performed as a set of a plurality of alternatives. Further, the throwaway tip set 1 for a chamfering apparatus according to the present invention has guide virtual lines L1 and L2 that are individually manufactured, sold, etc. and are common to throwaway tips having different cutting dimensions. A plurality of products that are manufactured, sold, and the like are included as one chamfering apparatus throw-away chip set 1.

DESCRIPTION OF SYMBOLS 1 Throw-away tip set for chamfering processing apparatus 1a Throw-away tip 1b Throw-away tip 1c Throw-away tip 1d Throw-away tip 1e Throw-away tip 1f Throw-away tip 10 R Chamfering blade 11 Flank 11b Flank 11c Flank 12 Mounting hole 13 C chamfering blade D Chamfering processing device 20 Guide means 20a Guide surface 20b Opening portion 21 Housing 22 Holding portion 23 Motor 24 Drive portion d1 First guide plate d2 Second guide plate L1 Guide virtual line L2 Guide virtual line C Intersection W Worked object

Claims (5)

In the throw-away tip set for a chamfering device, which is detachable with respect to the tip holding part of the chamfering device and comprises a plurality of interchangeable throw-away tips having different cutting radii or different cutting dimensions,
Two guide virtual lines in plan view for guiding the workpiece to the throw-away tip are substantially orthogonal, and the intersection is the same position in the plurality of replaceable throw-away tips,
A throw-away tip set for a chamfering apparatus, comprising a chamfering blade for a workpiece guided toward the intersection.   The throw-away tip set for a chamfering apparatus according to claim 1, having a clearance angle continuous from the chamfering blade to the opening side.   The throw-away tip set for a chamfering apparatus according to claim 1 or 2, wherein the chamfering blade is an R chamfering blade.   The throw-away tip set for a chamfering apparatus according to claim 1 or 2, wherein the chamfering blade is a C chamfering blade.   A chamfering processing apparatus comprising a cutting means capable of replacing the throw-away tip and a guide means for the workpiece, which does not have means for adjusting the distance between the throw-away tip and the guide means, and A chamfering apparatus comprising the throw-away tip in the throw-away chip set for a chamfering apparatus according to claim 1, 2, 3, or 4.

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