JP4054449B2 - Regular hexagonal drilling device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a regular hexagonal shape that can regularly form a regular hexagonal hole in a workpiece by rotating a cutting tool provided on a roulau pentagonal roulau pentagonal rotating body, and can be provided in a small size and at low cost. The present invention relates to a drilling apparatus.
[0002]
[Prior art]
In recent years, it has been practiced to drill a square hole by applying the Rouleau triangle, but in this case, the rotation of the drill, especially the Rouleau triangle, is non-rotating and slightly shakes vertically and horizontally. A square hole was formed by rotating the surrounding frame (with the workpiece) as appropriate. In particular, in this type of apparatus, a cutting blade as a drill is provided so as not to rotate, and a square hole is drilled in the workpiece while the workpiece itself rotates. In such a configuration, the work piece cannot be fixed to the drill as a triangle of the rouleau, and the drill is non-rotatable so that a slight blur occurs vertically and horizontally. No. 1241175, No. 1241176, No. 1241177, there are devices related to Oldham couplings. Furthermore, the apparatus for rotating the workpiece is increased in size and the apparatus for rotating is complicated, resulting in disadvantages such as an increase in price, and the development of a small and inexpensive apparatus has been demanded.
[0003]
[Problems to be solved by the invention]
Accordingly, the inventor has developed a small and inexpensive device for drilling a square hole in a workpiece. Furthermore, drilling a regular hexagonal hole or a regular octagonal hole that is more complicated than a square is also desired from an educational viewpoint, and in particular, development of a small and inexpensive device has been demanded.
[0004]
[Means for Solving the Problems]
Therefore, the inventor has intensively and intensively studied to solve the above-mentioned problems, and as a result, the present invention has a Louro pentagonal rotating body and a cutting tool provided at at least one of the apex locations of the Rouleau pentagonal rotating body. Forming a regular hexagonal hole having a width between the opposing sides of the regular hexagon, and a fixed body capable of rotating the roulau pentagonal rotary body in the regular hexagonal hole, and the roulau pentagon A regular hexagonal hole drilling device comprising a flexible rotating shaft having one end connected to the approximate center of gravity of the rotating body and a motor provided by driving the other end of the flexible rotating shaft is provided. Therefore, by rotating the cutting tool provided on the roulau pentagonal roulau pentagonal rotating body, regular hexagonal holes can be formed orderly in the work piece, and it can be provided in a small size at low cost, solving the above problems Shi It is intended.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, etc., the Louro pentagon rotator 1 is mainly provided at each vertex 1a of the Rouleau pentagon rotator 1. The cutting tool 2, the fixed body 3 having a regular hexagonal hole 4 in which the width of the ruler pentagonal rotator 1 is set between the opposite parallel sides of the regular hexagon, and the ruler pentagonal rotator 1. A flexible rotary shaft 9 having one end connected to the position of the center of gravity, and a motor 17 provided so as to be driven by connecting the other end of the flexible rotary shaft 9 are configured.
[0006]
Specifically, as shown in FIGS. 2 to 4, the Reuleau pentagon rotating body 1 includes an arc portion 1b having a radius from one of the five vertices 1a, 1a, 1a, 1a, 1a of the regular pentagon. , 1b, 1b, 1b, 1b are rotating bodies each having a predetermined thickness formed on the outer side of the opposite side, and this is a mathematically formed Rouleau pentagon with a large thickness. The cutting tool 2 is fixed to each of the vertexes 1a, 1a, 1a, 1a, 1a of the roulau pentagon rotating body 1. The tip of the cutting bit 2 is formed to coincide with the apexes 1a, 1a, 1a, 1a, 1a. Further, the cutting tool 2 has an L-shaped cross section (see FIGS. 3A and 3B), and the L-shaped piece mounting portion 2a is screwed or bolted on the surface side of the roulau pentagonal rotating body 1. The other L-shaped piece is formed as a blade portion 2b. In terms of material, generally, a hard metal is used and quenched. Usually, the cutting tool 2 is attached so that the tip position of the cutting tool 2 is the apex 1a and the rear side reaches the vicinity of the center of gravity G of the roulau pentagonal rotating body 1.
[0007]
A regular hexagonal hole 4 is formed in the fixed body 3. Between the opposing parallel sides of the regular hexagon of the regular hexagonal hole 4 is formed to be equal to the width of the ruler pentagon rotating body 1. Actually, the Reuleau pentagonal rotating body 1 rotates in the regular hexagonal hole 4, and each vertex 1 a and arc part 1 b slide on the inner wall of the regular hexagonal hole 4. Has been. The bottom 3a of the fixed body 3 is fixed to a flat base 19 with bolts or the like.
[0008]
As shown in FIGS. 1 and 2, a guide plate 5 having a predetermined interval 5 a is provided on the back side of the fixed body 3. A guide rotating plate 6 having a diameter equal to or larger than the diagonal length of the regular hexagonal hole 4 is inserted into the interval 5a, and the guide rotating plate 6 is fixed to the back surface of the roulau pentagon rotating body 1. When the Reuleaux pentagonal rotating body 1 rotates in the regular hexagonal hole 4, the guide rotating plate 6 is configured to be slidable and rotatable in the interval 5a at the same time, and the guide rotating plate 6 is rotated. Through this, the Rouleau pentagonal rotating body 1 can be rotated in an orderly manner. Further, if necessary, a rolling body 7 such as a ball may be provided at the interval 5a to rotate the guide rotating plate 6 with a minimum friction coefficient.
[0009]
One end of the flexible rotary shaft 9 is fixed to the center of gravity G position of the rouleau pentagon rotating body 1 or the guide rotary plate 6 at the same position as the center of gravity G, and the other end of the flexible rotary shaft 9 is fixed. Is fixed to a rotating shaft 11 rotatably provided on a bearing portion 12a of the gear box 12 fixed on the base 19. The eccentric rotation using the flexible rotating shaft 9 is performed because the center of gravity G of the roulau pentagonal rotating body 1 is obtained when the roulau pentagonal rotating body 1 rotates in the regular hexagonal hole 4 of the fixed body 3. Is to make a deformed circular motion. Specifically, each vertex 1a of the rouleau pentagon rotating body 1 and the tip portion of the cutting bit 2 rotate in a substantially regular hexagonal shape, and at this time, the center of gravity G position of the roulau pentagon rotating body 1 makes a deformed circular motion. A flexible rotating shaft 9 is used to rotate the motor.
[0010]
The flexible rotary shaft 9 may be composed of two universal joints 10 and 10, in which case one end of the universal joints 10 and 10 is the rotary shaft 11 and the other end is a roulau pentagon rotary body. 1 may be fixed to the shaft piece 8 provided on the guide rotary plate 6 at the same position as the center of gravity G or the position of the center of gravity G. A large gear 13a provided in the gear box 12 is fixed to the rotating shaft 11, the large gear 13a meshes with a small gear 13b, and a worm wheel 15 is connected to a driving-side rotating shaft 14 provided on the small gear 13a. Is fixed, and a worm 16 meshing with the worm wheel 15 is fixed to the drive shaft of the motor 17.
[0011]
On the front side of the two cutting tools on the front side of the roulau pentagon rotating body 1, a mounting table 18 for the workpiece P is slidably provided on a guide rail 20 provided on a base 19. A hydraulic cylinder 21 such as hydraulic pressure or pneumatic pressure is provided on the base 19 on the rear side of the mounting table 18. The tip of the cylinder rod 21a of the hydraulic cylinder 21 is connected to the rear end of the mounting table 18, and the mounting table 18 is moved back and forth by the reciprocating motion of the cylinder rod 21a.
[0012]
In the cutting work, when the motor 17 is driven, the rouleau with the cutting bit 2 is passed through the worm 16, the worm wheel 15, the small gear 13a, the large gear 13b, the rotating shaft 11, the universal joint 10, and the shaft piece 8. The pentagonal rotating body 1 rotates in the regular hexagonal hole 4 of the fixed body 3. On the other hand, the workpiece P placed and fixed on the mounting table 18 gradually approaches the cutting bit 2 side by the cylinder rod 21 a of the hydraulic cylinder 21, and the workpiece P is moved to the workpiece P by the cutting bit 2. Regular hexagonal holes are drilled. As the motor 17, when a machine tool is used, an AC power source motor is used. However, in the case of an educational material device, a DC battery or the like is often used.
[0013]
The principle of this regular hexagonal drilling is that each of the perpendicular legs drawn from each vertex 1a to the arc portion 1b of the Roule pentagonal rotator 1 has the length of one side of the equilateral triangle in the Roule pentagon rotator 1. This is because they match. However, when each apex 1a portion approaches the corner portion of the regular hexagonal hole 4, for example, as shown in FIGS. 4 (A) to 5 (A), the tip of the cutting bit 2 of (2) is The tip of the cutting tool 2 of (5) between the left and right walls of the regular hexagonal hole 4 and the arc 1b between (2) and (3) between the right and left walls of the regular hexagonal hole 4 The tip of the cutting tool 2 of (2) has an arc-shaped motion and is cut into an arc shape. By continuing such a process, a regular hexagonal hole drilling process is performed, and a regular hexagonal hole drilling process in which the corner portion is formed as an arc is performed.
[0014]
The actual regular hexagonal drilling will be described in detail. First, it is assumed that the rotation of the roulau pentagonal rotator 1 starts from the position of FIG. 4 (A). At this time, as shown in FIG. 4 (B), the workpiece P (imaginary view seen from the back side) Only the center of gravity G is located. Then, when the roulau pentagon rotating body 1 with the cutting tool 2 is rotated in the regular hexagonal hole 4 of the fixed body 3 in the clockwise direction in FIG. 4A by an appropriate angle (about 10 degrees), the roulau pentagon is obtained. The movement of each vertex 1a of the rotating body 1 makes a linear motion along the inner wall of the regular hexagonal hole 4 or makes an arc motion at the corners of the regular hexagonal hole 4 (FIG. 5A). Thus, in the cutting tools 2 of (3) to (5), a substantially triangular hole is formed, and an arc is formed at the tip of the cutting tools 2 of (1) and (2). As a whole, substantially triangular hole portions are formed, and the five cutting portions are portions separated by diagonal lines as shown in FIG. Then, when further rotated to the right (about 10 degrees), the tip of the cutting tool 2 of (2) and (3) in FIG. 6 (A) is formed in an arc shape, and at the same time, (1), (4) The tip of the cutting tool 2 of ▼ and (5) is linearly moved along the inner wall of the regular hexagonal hole 4, and triangular holes are added respectively. The five cutting parts are shown in FIG. B).
[0015]
Further, when the roulau pentagon rotating body 1 with the cutting tool 2 is rotated to the right (about 30 degrees), this time, as shown in FIG. 7A, the tip of the cutting tool 2 of (1) and (2) is provided. Has a linear motion along the inner wall of the regular hexagonal hole 4, and the tip of the cutting tool 2 of (3) to (5) has a linear motion along the inner wall of the regular hexagonal hole 4 and an arc-shaped motion, and is substantially triangular. Shaped holes are added, and the five cutting parts are as shown in FIG. Then, when the roulau pentagon rotating body 1 is rotated to the right (about 10 degrees), as shown in FIG. 8A, the tip of the cutting bit 2 of (1) and (5) is moved in an arc shape. The tip of the cutting tool 2 of (2) to (4) moves linearly, and triangular holes are added respectively, and the five cutting parts are shown in FIG. 8 (B). become that way. Further, when the roulau pentagon rotating body 1 with the cutting tool 2 is rotated to the right (about 12 degrees), this time, as shown in FIG. 9A, the cutting tool 2 of (1) and (2) The tip of the cutting tool 2 has an arcuate motion, and the tip of the cutting tool 2 of (3) to (5) moves linearly, and triangular holes are added to each of the five points. The cutting part is as shown in FIG. Thus, by rotating about 72 degrees from the beginning, that is, the position of the cutting tool 2 of (1) comes to the position of the cutting tool 2 of (5), and the circumference of 360 degrees is 5 By making one-minute rotation, a regular hexagonal hole having a circular corner is formed (see FIG. 9B). This is because the cutting tools 2 exist equally at five locations.
[0016]
Thus, since the movement of each vertex 1a of the rouleau pentagonal rotating body 1 becomes a substantially regular hexagonal locus, the blade portion 2b of the cutting bit 2 fixed to each apex 1a position of the roulau pentagonal rotating body 1 A substantially regular hexagonal drilling operation can be performed on the workpiece P. In particular, when the roulau pentagon rotating body 1 rotates about 72 degrees clockwise, the center of gravity G position draws a locus of rotation about 360 degrees counterclockwise. Further, in the first embodiment, the cutting tool 2 is provided at three equal parts, but the efficiency is reduced, but even with one or two, the same regular hexagonal hole drilling as with three Can do.
[0017]
Further, in the second embodiment, as shown in FIG. 10, the rouleau pentagonal rotating body 1 and the cutting tool 2 are integrally formed. Specifically, cutting tools 2, 2, 2, 2, 2 formed so as to go forward from the respective vertexes 1 a, 1 a, 1 a, 1 a, 1 a of the rouleau pentagon rotating body 1 are integrally formed. . Other configurations are the same as those in the above-described first embodiment, and the reference numerals are also the same, and thus the description thereof is omitted. The machining operation is also the same as that in the first embodiment.
[0018]
【The invention's effect】
The invention of claim 1 includes a roulau pentagonal rotating body 1, cutting bits 2, 2, and 2 formed so as to go forward from the apexes 1a, 1a, and 1a of the roulau pentagonal rotating body 1, and the roulau A regular hexagonal hole 4 is formed with the width of the pentagonal rotator 1 between the opposite sides of the regular hexagon, and the fixed body 3 in which the roulau pentagonal rotator 1 is rotatable in the regular hexagonal hole 4, A regular hexagonal shape comprising a flexible rotating shaft 9 having one end connected to the approximate center of gravity G position of the roulau pentagon rotating body 1 and a motor 17 provided so that the other end of the flexible rotating shaft 9 can be connected and driven. By using the drilling device, first, the Roule pentagonal rotating body 1 is rotated, and the workpiece P can be regularly and regularly hexagonally drilled in the workpiece P with the rotation of the workpiece P stopped. Second, the configuration is simple and can be provided at low cost Achieve the effect.
[0019]
In such a configuration, the configuration in which the workpiece P is rotated by rotating the Reuleau pentagonal rotating body 1 as a tool without rotating the workpiece P is increased in size as in the past. The apparatus can be provided in a small size and at a low cost.
[0020]
In the invention of claim 2, the configuration is substantially the same as that of claim 1, but only the cutting bit 2 is damaged by providing the cutting bit 2 and the roulau pentagon rotating body 1 separately and independently. In such a case, it is possible to cope with the problem by replacing only the cutting tool 2 and other effects are the same as those of the first aspect.
[0021]
According to a third aspect of the present invention, in the first or second aspect, the regular hexagonal hole 4 is penetrated, and the guide plate 5 formed at an appropriate interval behind the fixed body 3 and the roulau pentagon. A guide rotating plate 6 fixed to the rear side of the rotating body 1, and the guide rotating plate 6 is a regular hexagonal hole punching device that can slide between the rear side of the fixed body 3 and the guide plate 5. Thus, the roulau pentagonal rotating body 1 rotates the regular hexagonal hole 4, but the guide rotating plate 6 serves as a guide, and there is an advantage that the roulau pentagonal rotating body 1 can be rotated more accurately.
[0022]
According to a fourth aspect of the present invention, there is provided the mounting table 18 for mounting the workpiece P configured to be close to or away from the front surface of the cutting bit 2 according to the first or second aspect. By using the regular hexagonal hole drilling apparatus, there is an advantage that regular hexagonal hole drilling can be made orderly by placing the workpiece P on the mounting table 18 and gradually advancing it in the traveling direction.
[0023]
In addition, in the regular hexagonal drilling apparatus, if the ruler pentagonal rotating body 1 is actually moved, it is considered that the speed is too fast to be understood. A rotating disk 30 is fixed to the back surface of the roulau pentagon rotating body 1 rotating with respect to the regular hexagonal hole 4 of the fixed body 3, and the drive wheel 31 is provided so as to be pressed at one place around this. Specifically, the drive wheel 31 is fixed to the shaft of the speed reducer 32, the speed reducer 32 is provided on the distal end side of the swing arm 33, and the rear side of the swing arm 33 is the fixed body 3. The tip end side of the swing arm 33 is always elastically provided upward. That is, a part of the swing arm 33 is pulled upward and pulled by the coil spring 34. In such a case, the cutting tool 2 (which may not be cut and may be only a mark) slowly rotates around the inner periphery of the regular hexagonal hole 4 and the tip of the cutting tool 2 is substantially positive. It can be understood that it becomes a hexagonal locus, and is ideal for teaching materials.
[0024]
Further, what is shown in FIG. 12 is another embodiment, which is a regular octagonal hole that can be formed with a regular octagonal hole, a roulau heptagonal rotary body 25 with a cutting bit 2, and a regular octagonal hole 26 provided in the fixed body 3. It is. In particular, what is shown in FIG. 12 is one in which the roulau heptagon rotator 25 and the cutting tool 2 are integrally formed. This is the technical content substantially the same as that shown in FIG. 10, and the Reuleau heptagon rotator 25 has an arcuate portion 25b whose radius is one side of the regular heptagon from each of the seven vertices 25a of the regular heptagon. Rotating bodies each having a predetermined thickness formed on the outside, and the others are the same as in the above embodiment, and the description thereof is omitted. Further, the regular octagonal hole drilling work by the roulau heptagonal rotary body 25 with the cutting tool 2 is also the same as the regular hexagonal hole drilling process described above, although there is a difference in the rotation angle. Is also omitted.
[Brief description of the drawings]
FIG. 1 is a perspective view of the whole of the present invention. FIG. 2A is a side view of the main part of the present invention in cross section. FIG. 1B is a front view of a roulau pentagonal rotating body with a cutting tool. (B) is an exploded perspective view of (A). [FIG. 4] (A) is a state diagram immediately before starting rotation of a roulau pentagonal rotating body in the present invention (B) is a work piece. Fig. 5 (A) is a state diagram in which a roulau pentagon rotating body is rotated in the present invention. (B) is a machining state diagram of a workpiece cut by (A). FIG. 7A is a state diagram in which a roulau pentagonal rotating body is rotated in the present invention. FIG. 7B is a state diagram of a workpiece cut by (A). FIG. The state diagram (B) of rotating the body is the processing state diagram of the workpiece cut by (A). 8A is a state diagram in which a roulau pentagonal rotating body is rotated in the present invention. FIG. 9B is a state diagram of a workpiece cut according to FIG. 9A. FIG. State diagram (B) of rotating pentagonal rotator shows state of workpiece cut by (A). FIG. 10 (A) shows a cutting tool according to the second embodiment of the present invention. FIG. 11B is a rear view of the whole of another embodiment of the present invention. FIG. 11A is a perspective view of the processing of a regular hexagonal hole drilling using the rotating body of FIG. (B) is a cross-sectional view of the main part of (A). [FIG. 12] (A) is another embodiment, and (B) is a front view of a roulau heptagonal rotating body with cutting tool. Machining state diagram of regular octagonal hole drilling by rotating a rectangular rotating body inside a regular octagonal hole 【 Description of the issue]
G ... center of gravity 1 ... rouleau pentagonal rotating body 1a ... apex 2 ... cutting tool 3 ... fixed body 4 ... regular hexagonal hole 9 ... flexible rotating shaft 17 ... motor

Claims (4)

A Roule pentagon rotating body, a cutting tool formed so as to go forward from each vertex of the Roule pentagon rotating body, and the width of the Lu Ro pentagon rotating body between the opposite sides of a regular hexagon. A fixed body in which a square hole is formed and the Reuleau pentagonal rotating body is rotatable in the regular hexagonal hole, a flexible rotating shaft having one end connected to a substantially center of gravity of the Rouleau pentagonal rotating body, and the flexible rotation A regular hexagonal hole drilling device comprising a motor that is connected to the other end of the shaft so as to be driven. A ruler hexagonal rotary body, a cutting tool provided at at least one of the apexes of the ruler pentagonal rotary body, and a regular hexagonal hole with the width of the ruler pentagonal rotary body between opposite sides of the regular hexagon A fixed body capable of rotating the Rouleaux pentagonal rotating body in the regular hexagonal hole, a flexible rotating shaft having one end connected to a substantially center of gravity of the Rouleau pentagonal rotating body, and the flexible rotating shaft A regular hexagonal hole drilling device comprising a motor provided to be driven by connecting the other end. In Claim 1 or 2, the regular hexagon hole of the said roulau pentagon rotary body was penetrated, and it fixed to the rear part side of the said roulau pentagon rotary body with the guide plate formed with the appropriate space | interval behind the said fixed body. A regular hexagonal hole punching device characterized in that a guide rotating plate and the guide rotating plate are slidable between a rear side of a fixed body and the guide plate. The regular hexagonal hole punching device according to claim 1, further comprising a work table for placing a workpiece that is configured to be close to or away from the front surface of the cutting tool.

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