JPS6247641B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shaped steel drilling machine for drilling rivet steel into shaped steel such as H-shaped steel, channel steel, and angle shaped steel.

Generally, the absolute conditions for positioning the flange portion when drilling a section steel are as follows.

(1) The ideal positioning method for positioning the left and right flanges of a section steel is to distribute the drilling pitches from the center of the wave. This is because when joining perforated sections to each other,
This is because it is always performed using the wave as a reference.

(2) For shaped steel, according to JIS standards, the center of the wave relative to the flange is 300 mm.
The allowable value is ±3mm for mm or less, and ±4.5mm for 300mm or more.

(3) When drilling holes in such a steel section by positioning from the origin (bottom surface of the flange), since the wave is used as a reference when joining the sections, the centers of the holes in the respective flanges may be misaligned, resulting in damage to the joint plate. cannot be installed and must be repaired.

As shown in FIG. 1, a conventional shaped steel drilling machine has a structure in which all units for drilling a shaped steel 2 are placed on a base 1.
That is, the slide base 3 is placed on the base 1.
is slidably placed on the slide base 3, and a column 4 is also slidably supported on the slide base 3. A unit base 5 supporting a drill unit 9 is slidably supported on the column 4. Moreover, opposing columns 6, 6 are erected on the base 1, and a horizontal frame 7 is constructed between the columns 6, 6. A unit base 8 supporting a drill unit 9 is slidably supported on the horizontal rack 7. On the other hand, the shaped steel 2 which is the object to be perforated is placed on the guide roll 1 placed on the base 1.
a, and is clamped and fixed by a clamping member 10 that is slidably supported on the base 1 or the slide base 3.

With the shaped steel drilling machine having the above configuration, the shaped steel 2 is drilled from three directions.

However, as described above, the conventional shaped steel drilling machine has a structure in which the slide base 3, column 4, unit base 5, horizontal frame 7, clamping member 10, etc. are assembled and supported on the base 1. The top has an extremely complicated structure, requires a large area, and is large. Therefore, removal of chips, tool replacement, and tool adjustment are extremely difficult to perform, and all of these operations must be performed while standing on the base 1, resulting in the disadvantage that they are accompanied by danger. In addition, since the machine is large and occupies a large floor space, problems have arisen in selecting a location for installation.
In addition, in many structures, the positioning of the section steel 2 is performed by moving the section steel 2 itself, which may cause stop deviation due to inertia during movement, clamp misalignment during clamping, etc.
The disadvantage was that accurate positioning took time. Furthermore, when the hole pitches on opposing surfaces of the section steel 2 are different, there is a drawback that positioning cannot be easily performed. Of course, as mentioned above, each drill unit 9
Although the above-mentioned disadvantages can be solved by a structure in which the rollers can slide independently in three directions, the disadvantages are that the machine becomes large and the control device is also large and requires a plurality of devices, as mentioned above.

The present invention was created to solve the above-mentioned drawbacks, and its purpose is to simplify the area around the base, be small and lightweight, have excellent operability, improve work efficiency, and enable high-precision drilling. Our objective is to provide a possible section steel drilling machine.

In order to achieve the above object, the present invention provides a shaped steel drilling machine that drills holes in a shaped steel 2 placed on a base 1 from three directions: downward and from both left and right sides. The main pillars 12 and 13 are erected,
A square frame 20 is attached to the upper end of these pillars 12 and 13.
is fixed so as to protrude left and right, and rails 23 and 24 are provided on opposite sides of the square frame 20.
are installed in parallel, and rail guides 21 and 22 are respectively suspended on these rails 23 and 24 so as to be slidable back and forth, that is, in the X direction, along the rails. One end has a sliding part 28a and a stop handle 31 and is attached to be slidable and fixed in the X direction, and the other end of the horizontal frame 28 is attached to the other rail guide 2.
A first slide base 32 is fixed to the rail guide 21 having the sliding portion 28a, and a first slide base 32 is fixed to the rail guide 21 having the sliding portion 28a.
A second slide base 35 is suspended slidably in the left and right directions along the horizontal rack 28, that is, in the Y direction, and a third slide base 41 is attached to approximately the center of the horizontal rack 28 so as to be slidable in the left and right directions. Drill units 39 and 40 are supported on the left and right first slide bases 32 and second slide bases 35, respectively, so as to be slidable in the up and down Z direction via unit bases 33 and 36, and the third Slide base 41
This shaped steel drilling machine is characterized in that a drill unit 42 is supported downward, and the base 1 is provided with only a movable clamping member 15 in addition to the pillars 12 and 13.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, the section steel 2 is placed with its flange end in contact with the base 1. Specifically, in order to facilitate insertion of the section steel 2, it is supported on rollers 11 mounted on the base 1. Further, a guide roll 1a shown in FIG. 3 is also provided to facilitate insertion of the section steel 2 and is placed on the base.

Supports 12 and 13 are erected at the four corners of the base 1, and a holding member 14 is fixed to the inside of one of the supports 13, with which the flange surface of the section steel 2 comes into contact.
Further, at a position facing the clamping member 14, a movable clamping member 15 whose both end surfaces are supported on the base 1 and which moves toward and away from the clamping member 14 on the base 1 slides left and right. freely engaged. A load 17 of a hydraulic jack 16 comes into contact with the side surface of the movable holding member 15, and the hydraulic jack 16 is moved on the base 1 by a handle 19 connected to a threaded rod 18 screwed thereto. Due to this movement, the movable clamping member 15 slides left and right on the base 1 and clamps the flange surface of the shaped steel 2 together with the clamping member 14.
Note that the section steel 2 is fixed by operating a hydraulic jack 16.

A square frame 20 is attached to the upper end of the pillars 12 and 13.
is mounted parallel to the base surface of the base 1, that is, horizontally. A pair of rail guides 21 and 22 are provided on opposite left and right sides of the square frame 20, and rails 23 and 24 are fixed in parallel to the square frame 20.
It is suspended so that it can slide forward and backward. or,
The lower end surface of a joint plate 25 is fixed to one of the rail guides 21, and one end of a rod 26 attached to the rail 23 is fixed to the upper end side of the joint plate 25, and the other end of the rod 26 is connected to a cylinder 27 that moves this.
is connected to. Note that the cylinder 27 is fixed to the square frame 20.

A horizontal frame 28 is installed between one rail guide 21 and the other rail guide 22. Further, a sliding portion 28a is formed on the rail guide 21 side of the horizontal frame 28 and is slidably supported by the rail guide 21, and a female screw 28b is further fixed to the end portion of the sliding portion 28a. A threaded rod 29 rotatably attached to the rail guide 21 engages with this female thread 28b, and this threaded rod 29 is rotated by a handle 30. This rotation of the handle 30 causes the horizontal frame 28 to move in the same back and forth direction as the rail guide 21 (hereinafter referred to as
direction). Further, a stop handle 31 for fixing the horizontal frame 28 to the rail guide 21 is provided between the rail guide 21 and the sliding portion 28a.

The first slide base 3 is attached to the rail guide 21.
2 is fixed, and the first slide base 32 is formed with a sliding portion 32a that guides the unit base 33 in the vertical direction (hereinafter referred to as the Z direction). This sliding movement in the Z direction is performed by the cylinder 34.

Further, a second slide base 35 that moves in a direction along the horizontal frame 28 (hereinafter referred to as the Y direction) is slidably engaged with the rail guide 22 side of the horizontal frame 28. 35 includes a sliding portion 35 that supports the unit base 36 slidably in the Z direction.
a is formed. Note that the second slide base 3
5 is moved by a handle 38 via a threaded rod 37 that is threaded thereon. Also, unit base 3
6 is actuated by cylinder 34.

Drill units 39 and 40 are supported on the unit bases 33 and 36 so as to be slidable in the axial direction of the respective drills, and the drill units 39 and 40 face each other and are disposed perpendicular to the flange surface of the section steel 2. Ru.

Further, a third slide base 41 is supported on the horizontal rack 28 so as to be slidable in the Y direction along the horizontal rack 28, and a drill unit 42 is supported on the third slide base 41 so as to be slidable in the Z direction. It is supported and arranged to drill through the waves of the section steel 2. Note that the third slide base 41 is moved by a cylinder 43 fixed to the horizontal frame 28.

As is clear from the above, the drill unit 3
9, 40, 42 are all disposed in a suspended state on the square frame 20 via the first, second, and third slide bases 32, 35, 41, and the base 1
is not placed directly on the Also, drill unit 3
The drill units 9, 40, and 42 can be moved simultaneously in the front and rear X directions by the cylinder 27, and can also be moved independently in the left and right Y directions and the up and down Z directions, and the drill unit 39 and the drill unit 4
0 means that the handle 30 can be relatively displaced in the X direction back and forth.

Next, the functions and effects of this embodiment will be explained.

First, the shaped steel 2 is introduced, placed on the base 1, and fixedly positioned using the clamping members 14 and the movable clamping members 15. Next, the cylinders 27 simultaneously move the drill units 39, 40, 42 to predetermined positions. Now, if the contents of the holes in the flange and wave of the section steel 2 are the same, the cylinders 27, 34, and 43 are operated by a control device (not shown) to perform the desired holes. In addition, if the drilling contents on the flange surface are different, for example, the drill unit 39,
40, the handle 30 is turned and the horizontal frame 28 is moved in the X direction by engagement between the threaded rod 29 and the female thread 28b.
On the other hand, the drill unit 42 can be independently moved in the Y direction by the cylinder 43 to perform desired drilling.

Further, when the width of the section steel 2 changes, the handle 19 moves the movable clamping member 15 via the hydraulic jack 16, and the handle 38 moves the movable clamping member 15.
This can be done by moving the slide base 35 and positioning the drill unit 40 at a predetermined position.

As described above, by arranging the drill unit 39 and the like on the square frame 20 separated from the base 1 via the pillars 12 and 13 erected at the four corners of the base 1, the area around the base 1 is simplified. In addition to being small and lightweight, a deep pocket is formed that allows the drill unit 39 and the like to be moved to any desired position, making chip removal, tool exchange, and adjustment extremely easy. Further, as described above, each drill unit 39 etc. can be simultaneously moved in one direction by one cylinder 27, and each drill unit 39 etc. can be moved simultaneously in one direction by one cylinder 27.
Since the drill units 9, 40, and 42 are constructed so that they can move independently in other directions, and the opposing drill units 39 and 40 can also be shifted between each other, they have the same performance as completely independent drill units. In addition, simultaneous drilling is possible depending on the position of the holes to be drilled, making it easy to operate and extremely efficient drilling. Furthermore, since the entire device is made small and lightweight, the control device is also small and simple. Furthermore, positioning of the section steel 2 is easy, and no deviation in stopping due to inertial force occurs. Therefore, drilling accuracy is improved.

In this embodiment, the first slide base 32 and the holding member 14 are fixed, but the present invention is not limited to this. Also, unit base 33,
The mutual relationship in the sliding direction between 36 and the first and second slight bases 32 and 35 is not limited to the above. Further, the handles 19, 30, and 38 may be automated. Further, the cylinders 27, 34, and 43 may be operated by hydraulic pressure, and the hydraulic jack 16 is not limited to hydraulic pressure. Furthermore, the stop handle 31 may also be automatically operated.

As is clear from the above description, according to the present invention, it is small and lightweight, has excellent operability, improves work efficiency, and has the advantage of being able to perform highly accurate and automatic drilling.

[Brief explanation of the drawing]

FIG. 1 is a front view of one conventional section steel drilling machine, FIG. 2 is a front view of an embodiment of the present invention, and FIG. 3 is a top view thereof. 1... Base stand, 2... Shaped steel, 11... Roller,
12, 13... Support column, 14... Holding member, 15...
...Movable clamping member, 16...Hydraulic jack, 17...
...Rod, 18,37...Threaded rod, 19,30,
38...Handle, 20...Square frame, 2
1, 22...Rail guide, 23, 24...Rail, 25...Joint plate, 26...Rod, 27, 34, 43...Cylinder, 28...Horizontal frame, 28a, 32a, 35a...Sliding Moving part, 28b
... Female thread, 29 ... Threaded rod, 31 ... Stop handle, 32 ... First slide base, 3
3, 36... Unit base, 35... Second slide base, 39, 40, 42... Drill unit, 41... Third slide base.

Claims (1)

[Claims] 1 In a shaped steel drilling machine that drills a shaped steel 2 placed on a base 1 from three directions: downward and from both left and right sides, columns 12 and 13 are erected at the corners of the base 1. A square frame 20 is fixed to the upper ends of the pillars 12 and 13 so as to protrude left and right, and rails 23 and 24 are installed in parallel on both sides of the square frame 20 facing each other.
Rail guides 21 and 22 are respectively suspended on the rails 3 and 24 so as to be slidable back and forth, that is, in the X direction, along the rails.
One end is the sliding part 28a and the stop handle 31
The other end of the horizontal frame 28 is fixed to the other rail guide 22, and the first rail is attached to the rail guide 21 having the sliding portion 28a. slide base 3
2 is suspended and fixed, and a second slide base 35 is suspended from a portion of the horizontal frame 28 near the other rail guide 22 so as to be slidable in the left and right directions along the horizontal frame 28, that is, in the Y direction. A third slide base 41 is attached so as to be slidable in the left and right direction,
The first slide base 32 and the second slide base 35 each have a drill unit 39,
A drill unit 40 is supported slidably in the up and down Z direction via unit bases 33 and 36, a drill unit 42 is supported downwardly on the third slide base 41, and the support columns 12, A shaped steel drilling machine characterized in that, in addition to 13, only a movable clamping member 15 is provided.