JP2576901Y2 - Woodworking cutting tools - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a cutting tool for woodwork,
A cutting tool for woodworking, in which a cutting blade is mounted and fixed along the center axis direction on the peripheral surface of a substantially cylindrical tool holder, and the cutting blade cuts wood to be processed into various contours by rotating the tool holder. It is.

[0002]

2. Description of the Related Art Conventionally, as a woodworking cutting tool for cutting wood into a predetermined shape, a substantially cylindrical shape having a plurality of cutting blade fitting grooves along a central axis direction on a peripheral surface thereof at equal intervals and having a central axis line. A tool holder that rotates about a shaft, and a cutting blade that is mounted and fixed in the cutting blade fitting groove of the tool holder and that protrudes its own blade portion from the peripheral surface of the tool holder by a predetermined dimension, and the tool holder rotates. By doing
The thing which cut the to-be-processed wood is provided.

This cutting tool for woodworking uses cutting blades having different shapes, lengths and widths as needed in order to cut wood to be processed into a desired contour. The mounting position was determined by measuring the mounting position of the tool and the protruding dimension of the cutting blade from the tool holder using a gauge or the like.

[0004] Conventionally, when cutting grooves of various shapes in wood to be processed, first, the wood to be processed is cut into a predetermined thickness by a planer or the like, and then, with reference to the cut surface. A groove having a predetermined depth was cut.

[0005]

[Problems to be Solved by the Invention] However, in such a woodworking cutting tool, the fitting position of the cutting blade into the cutting blade fitting groove and the protruding dimension of the cutting blade from the tool holder are measured using a gauge or the like. It had to be very troublesome and required considerable setup time before the actual cutting operation.

Furthermore, in such a woodworking cutting tool, the cutting blade is merely fitted into the cutting blade fitting groove of the tool holder and is pressed and fixed by a set screw or the like. And the cutting blade was fixed to the tool holder unstable.

[0007] Further, since the cutting of the thickness and the cutting of the groove are performed separately, two steps are required to finish one piece of wood to be processed, resulting in poor work efficiency and a corresponding increase in cost. Was.

In view of the above-mentioned problems, the present invention makes it possible to easily confirm the fitting position of the cutting blade and the protruding dimension from the tool holder, and to firmly fix the cutting blade to the tool holder. The present invention has been devised to provide a woodworking cutting tool capable of improving work efficiency and reducing manufacturing cost.

[0009]

SUMMARY OF THE INVENTION For this reason, the present invention provides a tool holder which is substantially cylindrical and has a plurality of cutting blade fitting grooves on a peripheral surface thereof along a central axis direction at equal intervals, and which rotates about the central axis. And a cutting blade mounted and fixed in the cutting blade fitting groove of the tool holder and protruding its own blade portion by a predetermined dimension from the peripheral surface of the tool holder. In the woodworking cutting tool for cutting a, a scale to confirm the fitting position of the cutting blade is attached to the opening edge of the tool holder peripheral surface of a suitable number of the cutting blade fitting grooves among the cutting blade fitting grooves, Check the protruding dimension of the tool holder at the opening edge of the tool holder end face of the graduated cutting blade fitting groove and / or the cutting blade mounted and fixed to the graduated cutting blade fitting groove. With a scale, and The the number of the cutting edge and the cutting edge HamaSomizo to solve the above problems by forming the engagement portions which engage with each other to perform the slip.

Further, in the present invention, the cutting blade comprises a groove cutting blade and a canner blade, and the cutting blade fitting groove has a groove cutting blade fitting groove for mounting and fixing the groove cutting blade and a mounting knife for fixing the groove. The above-mentioned problem is solved by forming the groove on the opening edge of the groove for the groove cutting blade.

[0011]

According to the present invention, when a cutting blade is mounted in a cutting blade fitting groove of a tool holder, the cutting blade fitting groove is formed by a scale attached to an opening edge of a peripheral surface of the tool holder in the cutting blade fitting groove. The cutting position fitted to the cutting blade can be checked, and the cutting blade is fitted and fixed in the opening edge of the tool holder end face of the cutting blade fitting groove with the scale and / or the cutting blade fitting groove with the scale. The protruding dimension of the cutting blade from the peripheral surface of the tool holder corresponding to the depth at which the work piece is cut can be confirmed by the scale attached to the blade.

Therefore, it is not necessary to measure the position at which the cutting blade is fitted into the cutting blade fitting groove or the protrusion dimension of the cutting blade from the tool holder using a gauge or the like, and the setup time is shortened.

[0013] The cutting blade may include a scale attached to an opening edge of the tool holder peripheral surface of the cutting blade fitting groove, and an opening edge of the tool holder end face of the cutting blade fitting groove provided with the scale and / or the scale. By checking the scale attached to the cutting blade attached and fixed to the attached cutting blade fitting groove, it becomes possible to finely adjust the fitting position and the protrusion size, and the position and position for cutting the corresponding work piece It is possible to fine-tune the depth.

In addition, the engaging portions formed on the appropriate number of cutting blades and the cutting blade fitting grooves are engaged with each other, so that the cutting blade is firmly fixed at a predetermined position with respect to the tool holder. Become.

Further, according to the present invention, wood to be processed is cut to a predetermined thickness by a canna blade mounted in a canna blade fitting groove.
A groove having a predetermined depth is cut in the wood to be processed by the groove cutting blade attached to the groove.

Therefore, according to the cutting tool for woodworking, since the cutting of the thickness of the wood to be processed and the cutting of the groove can be performed at one time, the number of steps in the cutting process can be reduced, and the working efficiency is improved.

Further, the groove cutting blade has a scale attached to the opening edge of the tool holder peripheral surface of the groove cutting blade fitting groove and the opening edge of the tool holder end surface of the groove cutting blade fitting groove and / or the scale. By checking the scale attached to the groove cutting blade attached and fixed to the groove cutting blade fitting groove, it is possible to finely adjust the fitting position and the protrusion dimension, and the corresponding groove for cutting the processed wood The position and depth can be finely adjusted.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the figure is a tool holder of the cutting tool for woodwork according to the present invention. The tool holder 1 is formed in a substantially cylindrical shape, and a driving device (not shown) for rotating the tool holder 1 is provided at the center thereof.
In addition, a through hole 3 for mounting the drive shaft S is formed, and two cutting blade fitting grooves 2 along the central axis direction are symmetrically arranged on the peripheral surface of the through hole 3.

The cutting blade fitting groove 2 is for mounting and fixing a plate-like cutting blade 4 for cutting wood with its blade part 5 on the peripheral surface side of the tool holder 1. Since the cutting blade fitting groove 2 is not formed by excavation from the peripheral surface of the tool holder 1 toward the center, but is formed by excavation from the peripheral surface to the rear in the rotation direction of the tool holder 1, cutting is performed. The blade 4 is mounted and fixed with its blade portion 5 facing forward in the rotation direction.

In the inside of the cutting blade fitting groove 2, a cutting blade fitting portion 2a in which the cutting blade 4 is fitted and an auxiliary plate fitting in which an auxiliary plate 6 for assisting the mounting and fixing of the cutting blade 4 are fitted. The auxiliary plate fitting portion 2b is formed shallower than the cutting blade fitting portion 2a.

Reference numeral 7 denotes the auxiliary plate fitting portion 2 from the position in the rotation direction ahead of the auxiliary plate fitting portion 2b on the peripheral surface of the tool holder 1.
b, which is a push screw hole that penetrates obliquely through the push screw hole 7 and pushes the cutting blade 4 toward the inner wall surface in the rotation direction rear of the cutting blade fitting groove 2 when screwed.
Are screwed together.

The auxiliary plate 6 is interposed between the cutting blade 4 and the set screw 8 to assist the pressing of the set screw 8, and is fitted in the auxiliary plate fitting portion 2b in the rotational direction. A notch 8a with which the tip of the set screw 8 abuts is recessed on the side surface.

The surface of the cutting blade 4 which is fitted in the cutting blade fitting groove 2 and which is on the rear side in the rotational direction in a state of being fitted to the cutting blade 4 and the inner wall surface of the cutting blade fitting groove 2 which is in contact with this and which is rearward in the rotating direction. Joint part 9, 10
Are formed respectively. The engaging portions 9 and 10 are each formed by a continuation of a plurality of ridges and grooves along the center axis direction of the tool holder 1, and are engaged with each other when the cutting blade 4 is pressed by the set screw 8. Thus, the cutting blade 4 is firmly fixed to the tool holder 1. Note that the adjacent ridges of the engaging portions 9 and 10 of this embodiment are formed at 1 mm intervals.

A scale 11 in units of 1 mm is engraved on the opening edge of the cutting blade fitting groove 2 on the peripheral surface of the tool holder 1 on the rear side in the rotation direction, and the scale 11 is used to mount or adjust the cutting blade 4. In this case, the position can be confirmed in the center axis direction.

On the side surface of the cutting blade 4, a scale 12 in units of 1 millimeter is engraved along the rear edge in the rotation direction of the cutting blade 4. This graduation 12 is for confirming the protruding dimension of the cutting blade 4 from the peripheral surface of the tool holder 1 corresponding to the cutting depth of the wood to be processed. It is measured using the opening edge as a reference point.

In this embodiment, a cutting blade 4 having a width of 52 mm is used, and is mounted and fixed by projecting 11 mm from the peripheral surface of the tool holder 1.

Reference numeral 13 shown in FIG. 3 denotes a tip blade fitting groove formed in the blade portion 5 of the cutting blade 4, and the tip blade fitting groove 13 is formed of a hard metal material for directly cutting wood. The tip blade 14 and the tip blade auxiliary plate 15 are fitted. On the other hand, reference numeral 16 denotes a set screw which is screwed into a set screw hole 17 penetrating the chip fitting groove 13 from the front surface in the rotation direction of the cutting blade 4. The tip screw 16 is screwed in so that the tip end of the set screw 16 projects from the set screw hole 17, thereby pressing the tip blade auxiliary plate 15 and the tip blade 14 to be fixed in the tip fitting groove 13. doing.

Further, the tip blade auxiliary plate 15 and the tip blade 14
Are formed with a projection 15a and a locking hole 14a, respectively, and by locking these, positioning at the time of fitting into the tip blade fitting groove 13 and replacement of the blade tip 5a can be easily performed. I can do it.

The above-mentioned tool holder 1 and the cutting blade 4 are connected to each other while checking the scale 11 because the engaging portions 9 and 10 are formed along the center axis direction of the tool holder 1. It is possible to slide and adjust along the axial direction, and since the projections of each of the engaging portions 9 and 10 are formed at intervals of 1 mm, the protrusion dimension is checked while checking the scale 12. Can be adjusted in units of 1 mm.

Further, the ridges and grooves constituting the engaging portions 9 and 10 are formed along the center axis direction, so that the cutting blade 4 is strongly fixed against the centrifugal force applied when the tool holder 1 rotates. It is fixed to.

Moreover, the cutting blade 4 is provided with the tip blade 1
4, the tip blade 14 only needs to be replaced when the sharpness deteriorates, and the number of wearable replacement members is extremely small, so that the cost can be reduced.

The cutting tool for woodworking of the present invention is not limited to the above-described embodiment, but may be, for example, a second embodiment shown in FIGS. A scale 23 for confirming the mounting position of the cutting blade 22 and a scale 24 for confirming the protruding dimension of the cutting blade 22 are provided on the opening edge of the groove 21 and the opening edge of the cutting groove 21 on the end face of the tool holder 1, respectively. Even in the same manner as in the above-described embodiment, the mounting position of the cutting blade 22 can be finely adjusted.

In the second embodiment, a tip blade fitting recess 26 is formed in the rotation direction front side of the blade portion 25 of the cutting blade 22, and a hard metal for directly cutting wood is formed in the tip blade fitting recess 26. A tip blade 27 made of a material is fitted and fixed with a fixing screw 29 with a washer plate 28 interposed therebetween. Since this tip blade 27 has blades on both longitudinal edges,
If the blade becomes bad using one blade, it can be mounted in the opposite direction and the other blade can be used, and the tip blade 27 can be used effectively without waste.

Reference numeral 30 denotes a blade portion 25 of the cutting blade 22.
The side blade fitting recesses formed on both side surfaces of each of the side blades. A square-shaped side blade 31 having blades on four sides is fitted into the side blade fitting recesses 30, and is fixed by hexagon socket screws 32. I have. The side blade 31 cuts the inner side surface of the groove following the cutting of the groove by the tip blade 27 when cutting the wood to be processed. The cutting blade 22 is formed so as to be 0.5 mm thicker than the depth and slightly protrudes from both side surfaces of the cutting blade 22.

Therefore, the cutting blade 22 of this embodiment is
By attaching the side blades 31 to both side surfaces, the inner side surface of the groove can be finished in a smooth state.

Further, since the side blades 31 have blades on four sides, if the blades on one side are deteriorated, the blades on each side can be used by changing the direction of the blade, and the blades can be used without waste. Things.

Next, a third embodiment of the present invention will be described with reference to FIGS. In this embodiment, the cutting blade is composed of a groove cutting blade 41 for cutting a groove of a predetermined depth in the processed wood and a canner blade 42 for cutting the processed wood to a predetermined thickness. A groove cutting blade fitting groove 43 for mounting and fixing the groove cutting blade 41 and a planer blade fitting groove 44 for mounting and fixing the canner blade 42.

Of these, in the groove cutting blade fitting groove 43, the fitting position of the groove cutting blade 41 at the opening edge of the peripheral surface of the tool holder 1 is confirmed in the same manner as the cutting blade fitting groove 21 of the second embodiment described above. In addition to the graduation 46, a graduation 47 is provided at the opening edge of the end face of the tool holder 1 for confirming the protrusion dimension of the grooving blade 41, and the grooving blade fixed to the grooving blade fitting groove 43. 41 employs the same cutting blade 22 as that of the second embodiment (see FIGS. 6 and 7).

Also, in this embodiment, the groove cutting blade fitting groove 4 is used.
A fixing auxiliary member 45 is disposed on both sides of the groove cutting blade 41 in the inside 3, and the fixing auxiliary member 45 is pressed by the set screw 8 screwed into the set screw hole 7 like the groove cutting blade 41 and the canner blade 42. It is fixed and assists in fixing the groove cutting blade 41.

The illustrated groove cutting blade 41 is formed to have a width of 80 mm, and is mounted and fixed at the central position of the groove cutting blade fitting groove 43 in a state of protruding 20 mm from the peripheral surface of the tool holder 1.

On the other hand, the canner blade 42 has a length of 140 mm extending over both ends of the tool holder 1 and projects from the peripheral surface of the tool holder 1 by 3 mm so that the canner blade fitting groove 4 has a length of 140 mm.
4 and fixed.

Therefore, when cutting is performed with the woodworking cutting tool of this embodiment, the canner blade 42 cuts the wood to be processed to a predetermined thickness, and the groove cutting blade 41 has a difference in the protrusion dimension from the canner blade 42. Is cut in the wood to be processed.

According to the third embodiment, of course, the fitting position and the protrusion size of the groove cutting blade 41 corresponding to the position and depth of the groove to be cut can be confirmed by the scales 23 and 24. Since the cutting of the thickness of the wood to be processed and the cutting of the groove can be performed at the same time, it is possible to shorten the setup time before work and reduce the number of work steps, thereby improving work efficiency.

In each of the above-described embodiments, the scale for confirming the protruding dimension of the cutting blade is provided only on the opening edge of the tool holder end face of the cutting blade fitting groove or only on the cutting blade. The shape, size, material, and configuration of the tool holder, the shape, size, number, and configuration of the cutting blade fitting groove, the shape, size, number, material, and configuration of the cutting blade, and the groove cutting blade fit The shape, dimensions, number, and configuration of the mounting grooves, the shapes of the canna blade fitting grooves,
Dimensions, numbers, configurations, groove cutting blade shapes, dimensions, numbers, materials, configurations, canner blade shapes, dimensions, numbers, materials, configurations, engaging portion shapes, dimensions, numbers, configurations are described in the above-described embodiment. It is needless to say that the present invention is not limited to this.

[0045]

According to the present invention configured as described above,
A tool holder 1 having a substantially cylindrical shape and having a plurality of cutting blade fitting grooves 2 on its peripheral surface along the central axis direction at equal intervals and rotating about the central axis as an axis, and a cutting blade fitting groove 2 of the tool holder 1. , 21 attached to and fixed to the cutting tool, and the cutting blades 4 and 22 projecting their own blades from the peripheral surface of the tool holder 1 by a predetermined dimension. The woodworking machine cuts the wood to be processed by rotating the tool holder 1. Cutting tool, a suitable number of cutting blade fitting grooves 2 among the cutting blade fitting grooves 2
Cutting edges 4 and 22 are provided on the opening edge of the peripheral surface of the tool holder 1
Are provided with graduations 11 and 23 for confirming the fitting positions of the cutting blades, and the cutting blade fitting grooves 2 and 21 provided with the graduations 11 and 23 are provided.
Opening edge of tool holder 1 end face and / or scale 1
The cutting blades 4 and 22 mounted and fixed in the cutting blade fitting grooves 2 and 21 provided with the cutting blades 1 and 23 are provided with graduations 12 and 24 for confirming a protruding dimension from the peripheral surface of the tool holder 1. The number of cutting blades 4 and 22 and the cutting blade fitting grooves 2 and 21 are formed with engaging portions 9 and 10 that engage with each other to prevent slipping. At the time of mounting in the blade-fitting grooves 2 and 21, the cutting blade-fitting grooves 2 and 21 are mounted in the cutting blade-fitting grooves 2 and 21 by the scales 11 and 23 attached to the opening edges of the peripheral surface of the tool holder 1. The positions where the cutting blades 4 and 22 are fitted can be confirmed, and the cutting edges with the graduations 11 and 23, the opening edges of the tool holder 1 end faces of the cutting blade fitting grooves 2 and 21 and / or the cutting with the graduations 11 and 23 provided. By the scales 12 and 24 attached to the cutting blades 4 and 22 attached and fixed to the blade fitting grooves 2 and 21, respectively. Projecting distance from the tool holder 1 the peripheral surface of the cutting edges 4 and 22 corresponding to the depth of cutting the processed wood can be confirmed.

Therefore, it is possible to adjust the mounting position of the cutting blades 4 and 22 and the corresponding cutting position and depth of wood to be processed without requiring skill compared with the conventional technique which requires measurement using a gauge or the like. This makes it very easy to make changes, shortening the time required for setup before work and improving work efficiency.

Moreover, the engaging portions 9 and 10 formed on the appropriate number of cutting blades 4 and 22 and the cutting blade fitting grooves 2 and 21 are engaged with each other, so that the cutting blades 4 and 22 are attached to the tool holder 1. Is firmly fixed at a predetermined position with respect to.

Further, according to the present invention, the cutting blade comprises a groove cutting blade 41 and a canner blade 42, and the cutting blade fitting groove is
A groove cutting blade fitting groove 43 for mounting and fixing the groove cutting blade 41 and a canner blade fitting groove 43 for mounting and fixing the canner blade 42 are provided.
Since the marks 3 and 24 are provided, the fitting position and the protrusion size of the groove cutting blade 41 corresponding to the position and depth of the groove to be cut are indicated by the scale 2
Not only can it be checked and adjusted by 3 and 24, but also the cutting of the thickness of the wood to be processed by the canner blade 42 and the cutting of the groove by the groove cutting blade 41 can be performed at one time. It is possible to shorten the previous setup time and reduce the number of work steps, thereby further improving work efficiency.

As described above, according to the present invention, the work efficiency can be improved by reducing the setup time before work and the number of work steps, and the cutting blade can be firmly attached to the tool holder. It can be fixed, and has an extremely useful effect in practical use, such as being simple in construction and inexpensive to manufacture and provide.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a plan view showing the first embodiment.

FIG. 3 is a partially cutaway sectional view showing a main part of the first embodiment.

FIG. 4 is a partially cutaway side view showing a second embodiment.

FIG. 5 is a plan view showing a second embodiment.

FIG. 6 is a partially cutaway side view showing a main part.

FIG. 7 is an exploded perspective view of the cutting blade.

FIG. 8 is a partially cutaway side view showing a third embodiment.

FIG. 9 is a plan view showing a third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Tool holder 2 Cutting blade fitting groove 3
Through hole 4 Cutting blade 5 Blade 6
Auxiliary plate 7 Set screw hole 8 Set screw 9
Engaging part 10 Engaging part 11 Scale 1
2 Scale 13 Chip blade fitting groove 14 Tip blade 14
a Locking hole 15 Tip blade auxiliary plate 15a Projection 1
6 Set screw 17 Set screw hole 21 Cutting blade fitting groove 22 Cutting blade 2
3 scales 24 scales 25 blades 2
6 chip blade fitting recess 27 chip blade 28 washer plate 2
9 Fixing screw 30 Side blade fitting recess 31 Side blade 3
2 Hexagon socket head screw 41 Groove cutting blade 42 Canna blade 4
3 Groove cutting blade fitting groove 44 Canna blade fitting groove 45 Fixing auxiliary member 4
6 scales 47 scales S Drive shaft

Claims (2)

(57) [Scope of request for utility model registration] 1. A tool holder which has a substantially cylindrical shape and has a plurality of cutting blade fitting grooves on a peripheral surface thereof along a central axis direction at equal intervals, and a tool holder which rotates about the central axis as an axis, and a cutting blade fitting of the tool holder. A cutting blade mounted and fixed in the groove and configured to protrude its own blade portion from the peripheral surface of the tool holder by a predetermined dimension, and wherein the tool holder rotates, the cutting tool for woodwork cutting wood to be processed, Of the cutting blade fitting grooves, an appropriate number of cutting blade fitting grooves are provided on the opening edge of the peripheral surface of the tool holder with a scale for confirming a fitting position of the cutting blade, and of the cutting blade fitting groove with the scale. The cutting edge attached to and fixed to the opening edge of the tool holder end face and / or the cutting blade fitting groove provided with the graduation is provided with a graduation for confirming a protruding dimension from the peripheral surface of the tool holder. There is no slip between the cutting blade and the groove A cutting tool for woodworking, wherein engagement portions are formed to engage with each other to perform locking. 2. The cutting blade comprises a groove cutting blade and a canner blade, and the cutting blade fitting groove has a groove cutting blade fitting groove for mounting and fixing the groove cutting blade and a canner blade fitting for mounting and fixing the canner blade. The cutting tool for woodworking according to claim 1, wherein the groove is provided with a graduation at an opening edge thereof.