JPH11165210A - Hole drilling and machining device and hole drilling and machining method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time required for drilling a hole to improve the productivity. SOLUTION: A portal frame 5 provided with a material feed vice 15 can move in the forward and backward directions, an upper drill head 19 provided with a drill 23 which drills a hole in a web part WS of H-steel W capable of moving in the vertical, right, and left directions is provided on the portal frame 5, and a frame 11 is provided in adjacent to the portal frame 5. Right and left drill heads 37R, 37L provided with drills 53R, 53L, 55R, 55L which drill a hole in a flange part WF of the H-steel W in opposition to this frame 11 are provided in such a way that they can move freely in the vertical, right, and left directions. Consequently, it is possible to shorten the time required for drilling holes because a hole can be drilled in the flange part WF of the H-steel W during drilling a hole in the web part WS of the H-steel W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boring apparatus and a boring method for boring a workpiece such as a section steel.

[0002]

2. Description of the Related Art Conventionally, as a drilling apparatus for drilling a section steel or the like, for example, a section steel drilling machine described in Japanese Patent Application Laid-Open No. 4-46776 is known.

[0003] A section steel drilling machine comprises an upper drill head provided on an upper frame of a column provided on a base and movable vertically and horizontally, and an upper drill head provided on a side ram of the column and movable vertically and horizontally. A shape steel drilling machine is composed of a left and right drill head, a material feeding device for feeding a work, and a vice device provided on the base for holding and holding the work.

[0004]

In the above-mentioned conventional section steel drilling machine, when drilling a work, for example, an H-section steel, the web section of the H-section steel is drilled with an upper drill. Drilling of the H-section steel flange is performed by operating the left and right drill heads.

Therefore, in order to drill holes in the web portion of the H-section steel, the H-section steel is fed by a feeding device, positioned at a desired processing position, and then clamped and held by a vice device. After that, drilling is performed by the upper drill head. Also,
To drill a hole in the flange of the H-section steel, release the clamping of the feed vise, feed the H-section steel using the feeder, and position it at the desired machining position on the flange. After holding the H-section steel by pressing, drilling is performed with left and right drill heads.

However, there is a problem that much time is required for the drilling process, and the productivity cannot be improved.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drilling apparatus and a drilling method for reducing the time required for drilling and improving the productivity.

[0008]

In order to achieve the above object, a drilling apparatus according to the present invention according to a first aspect of the present invention comprises a portal frame provided with a material feeding vise for clamping and holding a work in a longitudinal direction of the work. The portal frame is provided so as to be movable in a front-rear direction, and the portal frame is provided with an upper drill head having a drill for drilling at least the horizontal portion of the work movable vertically, and a frame is provided adjacent to the portal frame. The left and right sides of this frame are provided with drills for making holes in the side of the work, facing each other.
A right drill head is provided, and the left and right drill heads are provided so as to be movable at least in the left-right direction.

According to a second aspect of the present invention, there is provided a drilling method for drilling a horizontal portion and a side portion of a work by drilling, wherein: (A) desired processing of the horizontal portion of the work; A first positioning step of moving the portal frame in the front-rear direction above the position and positioning the vertically movable upper drill provided on the portal frame;

(B) a clamping step of clamping the work with a material vise provided on the portal frame.

(C) A first drilling step for drilling a horizontal portion of the work with the drill.

(D) The portal frame is moved in the front-rear direction during the first drilling step, and is provided on a frame adjacent to the portal frame in the front-rear direction at a desired processing position on the side surface of the work. A second positioning step for positioning the left and right drills.

(E) A second drilling step in which the left and right drills are used to drill holes in side surfaces of the work while performing the first drilling step.

[0014] It is characterized by comprising:

Therefore, a portal frame provided with a material feeding vise and an upper drill head can be moved in the front-rear direction, and a frame provided adjacent to the portal frame is provided with left and right drill heads to form a boring machine. During the drilling of the horizontal part of the work with the upper drill head, the portal frame is moved to position the desired processing position on the side of the work, and then the drilling is performed with the left and right drill heads . Thus, the time required for drilling can be reduced, and the productivity can be improved.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 1, a drilling apparatus 1 comprises:
The drilling is performed on a shaped steel W such as an H-shaped steel, a channel steel, an angle steel, or the like as a workpiece from three directions, that is, upward and leftward.

A portal frame 5 is provided on the front side (left side in FIG. 1) of the base 3 in the drilling apparatus 1 so as to be movable in the X-axis direction (left-right direction in FIG. 1). More specifically, a plurality of rails 7 extending in the X-axis direction are provided on the base 3, and the portal frame 5 rides on the rails 7 (not shown). It is movable. A support plate 9 is erected on the front side of the base 3, and a plurality of guide rods 13 are laid between the support plate 9 and a U-shaped frame 11, which will be described in detail later. Guide rod 13
The portal frame 5 is guided and moved while being kept in a parallel state.

The gate-shaped frame 5 includes a side frame 5
R, 5L and Y on the side frames 5R, 5L.
The upper frame 5U is extended in the axial direction (in FIG. 1, diagonally right and left). This upper frame 5U
A plurality of guide members 17 are engaged with a plurality of guide rails 15 extending in the Z-axis direction (vertical direction in FIG. 1), and are movable in the Z-axis direction by a driving member (not shown) in the Z-axis direction. An upper drill head 19 is provided. Although not shown, the upper drill head 19 is movable in the Y-axis direction by a driving member.

The upper drill head 19 includes a drive motor 2
1, a spindle 22 provided at the lower end of the upper drill head 19 is rotatably supported.
The drill 23 is attached to the tip of the.

With the above configuration, the upper drill head 19 is
Web section WS of H-section steel, which is a section steel W moved in the axial direction
, The upper drill head 19 is moved in the Z-axis direction, and the drill 23 is rotated by the drive of the drive motor 21 to form a hole in the web portion WS of the H-section steel. It is what you do.

The side frame 5 of the portal frame 5
A material feeding vise 25 is provided in R and 5L. The material feeding vise 25 includes a fixed vice jaw 27 and a movable vice jaw 29.

The fixed vice jaw 27 is attached to the side frame 5
It is fixed inside R and serves as a reference for the position of the work W.

The movable vice jaw 29 is mounted on the side frame 5
L, opposed to the fixed vice jaw 27, provided movably in the Y-axis direction by a fluid pressure operated cylinder 31, and guided by a plurality of guide rods 33. Further, a rotatable roller 35 is supported at the same height position of the fixed vice jaw 27 and the movable vice jaw 29. The lower surface of the flange portion WF of the shaped steel as the work W is guided on the roller 35.

With the above structure, the movable vice jaw 29 is movable in the Y-axis direction by operating the cylinder 31, and holds the workpiece W fed between the movable vice jaw 27 and the fixed vice jaw 27.

The frame 11 is provided adjacent to the gate-shaped frame 5 and integrally with the base 3, and the frame 11 is constituted by side frames 11R and 11L standing upright.

A right drill head 37R is provided on the side frame 11R so as to be movable in the Y-axis and Z-axis directions. More specifically, the drill head main body 39R constituting the right drill head 37R is engaged with a plurality of rail members 41R extending in the Z-axis direction provided on the side frame 11R via a plurality of guide members 43R. A screw rod 47R extending in the Z-axis direction is screwed to a nut 45R provided on the drill head main body 39R. A drive motor (not shown) is connected to one end of the screw rod 47R.

With the above configuration, when the drive motor is driven, the screw rod 47R rotates, and the drill head main body 39R is movable in the Z-axis direction via the nut 45R screwed to the screw rod 47R.

A plurality of spindles 49R, 51R are rotatably supported at the tip of the right drill head 37R, and a drill 5 is attached to the tip of the spindles 49R, 51R.
3R and 55R are mounted. The right drill head 3
A drive motor 57R for rotating the spindles 49R and 51R is attached to the rear of the 7R.
A fluid cylinder (not shown) for feeding the spindles 49R and 51R is attached. A drill pitch changing drive motor (not shown) for changing the pitch of the drills 53R, 55R is provided on the drill head main body 39R.

The side frame 11R of the frame 11
A rail member 59R is provided at the upper part of the guide member 6 so as to extend in the Z-axis direction.
A work end surface pressing block 63R is provided movably in the Z-axis direction via 1R. Therefore, the work W is prevented from dancing by pressing the upper surface of the flange portion WF of the work W with the work end surface pressing block 63R.

A left drill head 37L is provided on the side frame 11L so as to be movable in the X-axis and Z-axis directions. The configuration of the left drill head 37L is the same as the above-described right drill head 37R, and is made of the same member.

That is, the drill head main body 39L constituting the left drill head 37L is composed of a plurality of rail members 41L provided on the side frame 11L and extending in the Z-axis direction.
, Via a plurality of guide members 43L,
The nut 45L provided on the drill head body 39L has a Z
A threaded rod 47L extending in the axial direction is screwed.
A drive motor (not shown) is connected to one end of the screw rod 47L.

A plurality of spindles 49L and 51L are rotatably supported at the tip of the left drill head 37L, and a drill 5 is provided at the tip of the spindles 49L and 51L.
3L and 55L are mounted. The left drill head 3
A drive motor (not shown) for rotating the spindles 49L and 51L is attached to the rear of the 9L, and a fluid cylinder (not shown) for feeding the spindles 49L and 51L is attached. In addition,
A drill pitch changing drive motor (not shown) for changing the pitch of the drills 53L and 55L is provided on the drill head main body 39L.

The side frame 11L of the frame 11
A rail member 59L is provided on an upper portion of the guide member 6 so as to extend in the Z-axis direction.
A work end surface pressing block 63L is provided movably in the Z-axis direction via 1L.

Accordingly, the work end surface pressing block 63
By pressing the upper surface of the flange portion WF of the work W with L, the work W is stopped from dancing.

On the rear side (the right side in FIG. 1) of the frame 11, there is provided a work transfer device 67 composed of a plurality of material feeding rollers 65. Reference numerals 69 and 71
Denotes a chute for discharging chips generated during processing.

With the above-described configuration, the operation is as follows. First, the H-shaped steel W as a work is fed by the feeding roller 65, and a horizontal plane which is the web portion WS of the H-shaped steel W is drilled. Previously, the upper drill head 19 provided on the portal frame 5 was provided at a desired processing line of the web portion of the H-section
In order to make the center of the drill 23 coincide, the portal frame 5 is moved in the X-axis direction to position the portal frame 5.

When the positioning of the portal frame 5 is completed,
The H-shaped steel W is clamped by the material feeding vise 25, the drill 23 provided on the upper drill head 19 is positioned at a desired processing position of the H-shaped steel W, and a hole is formed in the web portion WS of the H-shaped steel W. Do.

During the drilling operation on the web portion WS of the H-section steel W, the portal frame 5 is moved in the X-axis direction to move the desired processing line of the flange portion WF of the H-section steel W to the left and right drill heads. Drills 53R, 53L provided on 37R, 37L,
Position it at the center of 55R, 55L.

Then, the left and right drill heads 37R, 37
L is positioned at a desired processing position, and drilling is performed on the flange portion WF of the H-section steel W.

Since the flange portion WF can be drilled while the web portion WS of the H-section steel W is being drilled, the time required for drilling can be greatly reduced, and productivity can be reduced. Can be improved.

The present invention is not limited to the above-described embodiment of the present invention, but can be embodied in other forms by making appropriate changes. When the web portion WS and the flange portion WF of the H-section steel W are drilled, if the distance between the respective processing positions is known in advance, the moving position of the portal frame 5 is set in advance. The upper drill 23 and the left and right drills 53R,
Drilling can be simultaneously performed on the H-section steel W at 53L, 55R, and 55L.

[0043]

As will be understood from the above embodiments of the present invention, according to the present invention according to claims 1 and 2,
The portal frame with the feed vise and upper drill head can be moved in the front-rear direction, and a frame provided adjacent to the portal frame is equipped with left and right drill heads to form a drilling device. During drilling of the horizontal plane of the work with the drill head, the portal frame is moved to position the desired processing position on the side surface of the work, and then drilling is performed with the left and right drill heads. Thus, the time required for drilling can be reduced, and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view showing a main part of the present invention and showing a drilling apparatus.

[Explanation of symbols]

 Reference Signs List 1 drilling device 5 portal frame 11 frame 19 upper drill head 23 drill 25 feeding vise 37R, 37L left, right drill head 53R, 53L drill 55R, 55L drill W work WS web part (horizontal part) WF flange part (horizontal part) Side)

Claims (2)

[Claims] 1. A portal frame provided with a material feed vise for clamping and holding a workpiece is provided so as to be movable in the longitudinal direction of the workpiece, that is, in the front-back direction. An upper drill head having a drill for drilling a part is provided, a frame is provided adjacent to the portal frame, and left and right sides of the frame are also opposed to each other for drilling a side surface of the work. A left and right drill head with each drill is provided.
A drilling apparatus characterized in that a right drill head is provided so as to be movable at least in the left-right direction. 2. A drilling method for drilling a horizontal portion and a side portion of a work with a drill, comprising: (A) moving a portal frame in a front-rear direction above a desired processing position of the horizontal portion of the work; A first positioning step of positioning a vertically movable upper drill provided on the portal frame; (B) a clamping step of clamping the work with a material vise provided on the portal frame. (C) a first drilling step of drilling a horizontal portion of the work with the drill; (D) The portal frame is moved in the front-rear direction during the first drilling step, and a left and right drill provided on a frame adjacent to the portal frame in the front-rear direction at a desired processing position on a side surface of the work is provided. A second positioning step for positioning. (E) a second drilling step of drilling a side surface of the work with the left and right drills while performing the first drilling step. And a drilling method characterized by comprising: