JP2000176715A - Multi-shaft drilling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold a longitudinally and laterally long workpiece between a base and an arm by cantilever-supporting the arm on one end section of the base via columns. SOLUTION: A base 3 is provided with a guide rail 18 supporting two vertical drill units 30 slidably in the lateral direction. The left end section of an arm 5 is supported by columns 8, 9 and supported on the base section 3a of the base 3. A guide rail 6 is provided at the right end section from the center section on the lower face of the arm 5, a plate-like pressing member 11 is provided at the tip, and two air cylinders 10 expanding/-shrinking downward are provided slidably in the lateral direction. The pressing member 11 can be rotated in the horizontal direction, it is rotated along a drill head 33 and is fixed to the air cylinder 10, and it can press the upper face section of a workpiece (w) near the position where a hole is bored by the drill 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-axis drilling machine which is a machine tool for making a hole in a work material of wood or metal using a drill, and more particularly to a multi-axis drilling machine having a plurality of drills.

[0002]

2. Description of the Related Art Conventionally, there is a multi-axis drilling machine shown in FIG. 5 and FIG. 6 in which a plurality of holes are formed in a work material by a plurality of drills. The multi-axis drilling machine 50 includes a base 51
Column-shaped columns 52a and 52b are provided upright, and the motor 3 and the motor 3
And a plurality of drills 32 rotated by 1 and a vertical drill unit 30 that enables the drills 32 to slide up and down. The vertical drill unit 30 includes a base 51
It can slide left and right on the top. The columns 52a and 52b support both ends of an arm 53 extending horizontally. The arm 53 is provided with a guide rail 54 projecting from the arm 53 in the front direction.

[0003] A fixed rail 55 is provided on the left side of the base 51 so as to support and move one end of the workpiece w at a predetermined height. A rail 56 is provided. In addition, on the guide rail 54, a horizontal drill unit 65 including a motor 66 and a plurality of drills 67 rotated with the rotation axis being horizontal by the motor 66, and an air cylinder 61 that holds the workpiece w from above are provided. It is slidably provided.

When a plurality of holes are formed in a workpiece w by the multi-axis drilling machine 50, first, the moving rail 56 is moved to a position where the workpiece w can be supported. Next, the vertical drill unit 30 and the air cylinder 61 are moved to a position where a hole is to be formed. Then, the work material w is transferred to the fixed rail 55.
6 while being supported by the moving rail 56. Next, the work material w is fixed above the vertical drill unit 30 by extending the air cylinder 61.

In this state, the rotating drill 32 is raised, and a hole is formed in the workpiece w. Further, in order to form a hole in the side surface of the work material w, the horizontal drill unit 65 is connected to the work material w.
Slide in the direction. The work material w after drilling the hole is shown in FIG.
Are sent in the direction of the arrow に shown in FIG.
It passes through the opening defined by the arm 53 and the guide rail 54 and is removed from the multi-axis drilling machine 50.

[0006]

However, in the multi-axis drilling machine, since the horizontal drill unit and the air cylinder are supported by the guide rail projecting from the arm, the weight to be supported by the arm is large. For this reason,
It is necessary to support the arm on the base with both ends using columns. With such a structure, there is a problem that a hole cannot be formed in a work material having a width equal to or larger than the column interval. In addition, the arms and columns need to be thick and strong so that they can bear a large weight. For this reason, the arms and columns themselves are heavy, and the weight of the entire multi-axis drilling machine is increased, which makes transport of the multi-axis drilling machine difficult.

The horizontal drill unit is provided so as to slide at a position where it does not contact the column material of the column.
Therefore, the column and the horizontal drill unit require a space independent of each other, and it is difficult to reduce the size of the multi-axis drilling machine.

[0008] The present invention has been made in view of such circumstances, and an object thereof is to maintain the column supporting strength while maintaining the column supporting strength.
It is an object of the present invention to provide a miniature multi-axis drilling machine that can drill holes in a long and fore-and-aft and left and right working material, can reduce the weight and can be easily transported.

[0009]

According to a first aspect of the present invention, there is provided a multi-axis drilling machine including a drill unit having a plurality of drills and a motor for rotating the drill, a base for mounting a work material and supporting the drill unit. Holding means for pressing the work material, an arm supporting the holding member and extending from one end to the other end on the base, the arm is cantilevered at one end thereof, and is supported at one end of the base. A work material arranged below the other end of the arm.
The work material is held on the base by being pressed from above by the holding member.

According to a second aspect of the present invention, there is provided a multi-axis drilling machine in which a pair of columns formed in a gate shape in a side view is erected at a predetermined interval at one end of a base, and a rotary shaft of a drill is provided horizontally. The drill unit is disposed in an opening formed in a gate shape of a column and in a gap between the columns.

According to a third aspect of the present invention, in the multi-axis drilling machine, the horizontal drill unit slides on the base so that the drill of the horizontal drill unit can protrude and retract toward the other end of the base from the opening formed in the column shape of the column. It is characterized by being freely supported.

According to a fourth aspect of the present invention, the multi-axis drilling machine is characterized in that the work material is fixed and supported on the column by fixing means supported on the column.

[0013]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view showing an embodiment of the multi-axis drilling machine of the present invention, FIG. 2 is a top view of FIG.
3 is a right side view of FIG. 1, and FIG. 4 is a left side view of FIG.

In FIGS. 1 to 5, a multi-axis drilling machine 1 comprises:
This is for simultaneously drilling a plurality of holes in a work material w which is a plate of wood or iron having a thickness of about 50 mm or less.
The base 3 has a guide rail 18 that supports two vertical drill units 30 described later slidably in the left-right direction. Further, a pillar 4 protrudes from the right front part of the base 3.

At the left end of the base 3, a rectangular parallelepiped base 3 having a height of about 650 mm, a width of about 500 mm and a depth of about 800 mm is provided.
a is provided. On the left and right sides of the upper surface of the platform 3a,
Columns 8 and 9 are provided to protrude upward. The columns 8 and 9 are rods of about 75 mm × about 75 mm, each of which has a gate shape and both lower ends are slightly bent inward, and the bent ends are fixed to the left and right sides of the upper surface of the base 3a. Have been. As a result, the two columns 8 and 9 are fixed to the upper surface of the base 3a with an interval A of about 350 mm in parallel in a front view. The columns 8 and 9 are arms 5 to be described later.
What is necessary is just to have the strength which can support this, and if it fulfills this condition, it may have a hollow cross section.

The arm 5 is a bar having a hollow cross section of about 1500 mm in width, about 200 mm in height, and about 100 mm in depth. The arm 5 has its right end supported by the columns 8 and 9 and supported by the base 3a. A guide rail 6 is provided from the center to the right end of the lower surface of the arm 5. The guide rail 6 has a plate-shaped pressing member 11 at the end, and two air cylinders 10 that can expand and contract downward and slide in the left and right direction. It is movably equipped. The holding member 11 is rotatable in a horizontal direction, and is turned along a drill head 33 described later, and is fixed to the air cylinder 10 so that the work material w in the vicinity where the hole is drilled by the drill 32 is formed. The upper surface can be pressed. An operation panel 7 having various switches for operating the multi-axis drilling machine 1 is provided on the front of the arm 5.

On the right side of the column 9, a plate-like rail 15b is provided.
Is stretched horizontally. An air cylinder 15 having a rod 15a that can be extended and retracted downward is provided on the rail 15b.
Are provided. The right side of the column 9 below the rail 15 is provided with a drill 2 of a horizontal drill unit 20 described later.
A ruler rail 16 having a substantially L-shaped cross section is stretched so as not to obstruct the path of No. 2. The work material w is pressed by the rod 15 a of the air cylinder 15, and the work material w is firmly abutted against the ruler rail 16, so that the work material w can be fixed and supported on the column 9. That is, the work material w is formed by the ruler rail 16 and the air cylinder 15.
Is fixed to the column 9 for fixing and supporting it.

A guide rail 13a is fixed between the column member 4 and the column 9, and the rail 13 is stretched between the front and rear guide rails 13a. In addition, by arranging the rail 13 between the plurality of drills 32 raised in the vertical drill unit 30 described later, the rail 13 can support the workpiece w without contacting the drill 32.

The horizontal drill unit 20 is for simultaneously drilling a plurality of horizontal holes in the side surface of the workpiece w. The horizontal drill unit 20 has openings of columns 8 and 9 and a gap A on the upper surface of the base 3a. Are located in The horizontal drill unit 20 includes a motor 21 on which a rotating shaft (not shown) is horizontally arranged on a slide table 24 slidable in the left-right direction by an air cylinder 25, and a drill 22 rotated by the motor 21 in a straight line. And has drill heads 23 arranged at equal intervals. The drill 23 has the same rotation axis as the rotation axis of the motor 21,
It is connected to.

The vertical drill unit 30 is for drilling a plurality of vertical holes at the same time on the bottom surface of the workpiece w, and is provided on a base so as to be slidable in the left-right direction. The vertical drill unit 20 has a slide table 34 slidably supported on the base 3 by the rail 18 in the left-right direction and slidable in the up-down direction by the air cylinder 35. In addition, a motor 31 having a rotation axis (not shown) arranged vertically and a drill head 33 in which drills 32 rotated by the motor 31 are arranged at regular intervals on a straight line are arranged. The drill 33 is connected to the motor 31 in the same direction as the rotation axis of the motor 21. Further, the drill head 33 is fixed so as to be rotatable in a horizontal direction by a rotation attachment 36 located between the motor 31 and the drill head 33.

Next, with the multi-axis drilling machine 1 of the present embodiment,
The operation of forming a plurality of holes in the workpiece w will be described. First, as shown in FIG. 1, the workpiece w is placed on the rail 13 while abutting the workpiece w on the ruler rail 16. The workpiece w is pressed against the ruler rail 16 by extending the rod 15a of the air cylinder 15 in the direction of arrow a. Then, the workpiece w is fixed and supported on the column 9 via the ruler rail 16 and the rod 15a of the air cylinder 15. Further, the pressing member 11 is pressed against the workpiece w in the direction of arrow B by the air cylinder 10, and the workpiece w is held on the multi-axis drilling machine 1.

When drilling a hole in the bottom surface, the drill 32 is raised in the direction of arrow C by the air cylinder 35 while rotating the drill 32 by the motor 31 of the vertical drill unit 30. And the rotating drill 32
Drills a hole in the workpiece w. The positions of the holes formed in a straight line are determined in advance by rotating and fixing the drill head 33 in the horizontal direction. Depending on the right vertical drill unit 30 shown in the drawing, holes aligned in the left-right direction can be drilled, and in the left vertical drill unit 30, holes aligned in the front-rear direction can be drilled. . When the drilling of the hole is completed, the drill head 33 is lowered in the direction opposite to the arrow C.

When a hole is formed in the side surface of the workpiece w, the drill 22 is rotated by the motor 21 of the horizontal drill unit 20 while the air cylinder 25 is rotated.
The drill 22 is moved in the direction of arrow d. Then, the rotating drill 22 drills a hole in the workpiece w. At this time, since the drill 22 moves through the opening 9 a of the column 9, the column 9 does not hinder the movement of the drill 22. When the drilling of the hole is completed, the drill head 23 is moved in the direction opposite to the arrow d.

In order to remove the work material w after the drilling of the hole, the pressing material 11 is moved in the direction opposite to the arrow B in FIG.
Further, the rod 15a is contracted in the direction opposite to the direction of the arrow A. Then, the holding state of the work material w is released. By removing the work material w from the multi-axis drilling machine 1, the work of forming a hole in the work material w is completed.

According to this embodiment, one end of the arm 5 is cantilevered to the base 3 via the columns 8 and 9 while releasing the other end of the arm 5. The other end and the other end of the arm 5 are open. For this reason, even if the workpiece w is long in the front-rear and left-right directions, it can be held between the base 3 and the arm 5 and a hole can be formed. Further, since the columns 8 and 9 are only at one end of the base 3, the shapes of the columns 8 and 9 are reduced in size, the weight is reduced, and the transportation is facilitated.

Further, by arranging the horizontal drill unit 20 in the openings 8a, 9a of the columns 8, 9 and the interval A between the columns 8, 9, the space can be used efficiently and the multi-axis drilling machine 1 can be downsized. And In addition, an operator needs to reach for the horizontal drill head 20 in order to maintain the horizontal drill head 20. In this embodiment, the openings 8a, 9a of the columns 8, 9 and the columns 8, 9
Is sufficiently secured, the worker can
The maintenance of the horizontal drill unit 20 can be easily performed through the openings 8a, 9a of the columns 8, 9 and the interval A between the columns 8, 9.

[0027]

According to the first aspect of the present invention, the arm is cantilevered at one end of the base via the column, so that the other end of the base and the other end of the arm are separated. It is open. For this reason, even if the processing material is long in the front-back and left-right directions, it can be held between the base and the arm, and a hole can be formed. In addition, since the column is located only at one end of the base, the weight is reduced and transportation becomes easy.

According to the second aspect of the invention, since the column has a gate-like opening and has an opening, the weight can be further reduced in addition to the effect of the first aspect of the invention. Further, since the pair of columns are arranged substantially in parallel with a predetermined interval, the supporting strength of the arm by the columns is ensured.
In addition, by arranging the drill unit in the opening formed in the column shape of the column and the gap between the columns, the space can be used efficiently and the multi-axis drilling machine can be reduced in size. Then, the operator can easily perform maintenance of the drill unit through the opening formed in the column shape of the column and the gap between both columns.

According to the third aspect of the present invention, the drill can slide through the opening formed in the gate shape of the column. For this reason, even when the drill unit is arranged in the opening formed in the column shape of the column and the gap between the columns, it is possible to form a hole in the workpiece without restricting the sliding by the column. It becomes possible.

According to the fourth aspect of the present invention, since the work material is fixed and supported at a predetermined position of the column supported by the base, a fixed rail is not required, and the effect of the first aspect of the present invention is enhanced. In addition, the weight can be further reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a multi-axis drilling machine of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a left side view of FIG. 1;

FIG. 5 is a front view showing a conventional multi-axis drilling machine.

FIG. 6 is a left side view of FIG. 5;

[Explanation of symbols]

 1 multi-axis drilling machine 3 base 3a base 5 Arm 8, 9 ... Column 11 ... Holding member 13 ... Rail 15 ... Air cylinder 16 ... Ruler rail 20 Horizontal drill unit 21 Motor 22 Drill 23 Drill head 24 Slide table 25 Air cylinder 30 Vertical drill unit 31・ ・ ・ ・ Motor 32 ・ ・ ・ ・ ・ ・ ・ ・ ・ Drill 33 ・ ・ ・ ・ ・ ・ ・ ・ ・ Drill head 34 ・ ・ ・ ・ ・ ・ ・ ・ ・ Slide table 3 ......... the air cylinder 36 ......... rotation attachment

Claims (4)

[Claims] 1. A multi-axis drilling machine for drilling a plurality of holes in a workpiece by a plurality of drills, and a drill unit having the plurality of drills and a motor for rotating the drill, and the workpiece is mounted. A base for supporting the drill unit, pressing means for pressing the work material, an arm for supporting the pressing member and extending from one end to the other end of the base, and connecting the arm to one end of the base. A column supported at one end of the base while being cantilevered, and the work material disposed below the other end of the arm is pressed from above by the pressing member, A multi-axis drilling machine holding a work material on the base. 2. A pair of columns formed in a gate shape as viewed from the side are erected at a predetermined interval at one end of the base, and the drill unit is provided with a rotation axis of the drill horizontally. 2. The multi-axis drilling machine according to claim 1, wherein the horizontal drill unit is arranged in an opening formed in a gate shape of the column and a gap between the columns. 3. The horizontal drill unit is slidably supported by the base so that a drill of the horizontal drill unit can protrude and retract from the opening formed in the gate shape of the column to the other end side of the base. 3. The multi-axis drilling machine according to claim 2, wherein: 4. A fixing means supported by the column,
The processing material is fixed and supported on the column.
The multi-axis drilling machine according to claim 3.