JPS58196910A - Automatic drilling machine for shape steel - Google Patents

Abstract

PURPOSE:To provide automatic drilling of a group of holes with high precision patterns over the entire length of the workpiece without having any relation with a size or length of the workpiece. CONSTITUTION:When a workpiece W is set at a desired position and a starting instruction is applied, the main stock vices 3a and 3b hold and fix the workpiece W, a workpiece holding an fixing signal is transmitted from the main stock vices to the central processing unit (not shown) to confirm the holding of the workpiece. Then, the first, second and third drilling heads 6a, 6b and 6c drill independently the desired pattern in accordance with the information written into the drilling position indicater plate 11 set at each of the drilling position control devices 8a, 8b and 8c. Upon completion of drilling of all the holes, the workpiece W is transferred.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically drilling boreholes, etc. in H-shaped steel, channel steel, angle steel, etc., and a drilling positioning method for this type of device. It can be roughly divided into the following two types! MINI
There is a method. #Il method has a multi-axis drilling head on each side of the right, left, and upper sides of a fixed portal frame.
The pitch of the holes in the transverse direction of the section is set in advance during setup, and the entire section is moved by a conveyor in the longitudinal direction according to that pitch.The second method is to manually move the section into the machine. In this method, the drilling head mounted on a freely slidable cross slide device is moved and positioned.

In the first method of the former, it is possible to position the long section steel over almost the entire longitudinal direction, but on the other hand, since the section steel itself is moved back and forth for positioning, it is especially difficult to process the section steel.
In the case of various lengths such as those shown in FIG. The latter method, I@2, always allows highly accurate positioning regardless of the size or length of the shaped steel. In particular, drilling work for H-section steel is not a process of continuously drilling a large number of holes over the entire longitudinal direction, but a process of drilling a group of holes in a predetermined pattern P in several dark places in the longitudinal direction, as shown in Figure 1. In most cases, this second method is suitable for positioning within such a predetermined pattern of hole groups. However, since the holes in a predetermined pattern are generally far apart from each other, the shaped steel must be moved manually or by conveyor during this time, and all drilling work for long shaped steel can be done fully automatically. could not be done.

The present invention has been developed in view of the above, and an object of the present invention is to provide a device that can drill holes over the entire area of a long section steel, etc., fully automatically and with high precision.

The feature of the present invention is that holes in a predetermined pattern are positioned and drilled using the second method described above, and holes are formed between the holes in the shape of the main vice mechanism that clamps the section steel. N4
Two pairs of conveyance vises m installed at the front and rear of the outside in the longitudinal direction
＊The purpose is to transport the material in a pinched manner using either one of the two methods.

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

FIG. 2 is a front lfi diagram of the outside part of the embodiment of the present invention, and FIG. 3 is a person-to-person view of the same. ) FIG. 4 is a block diagram showing the configuration of a control circuit according to an embodiment of the present invention.

A soil vice stand 2 is fixed on the base 1, and two pairs of soil vices 3a, 3 are placed on the vice stand 2 at a predetermined interval.
b is installed, and the material to be processed, for example, the H-shaped steel W, is clamped and fixed by the L vises 3a and 3b. These E
Vise 3a, 3b edge workpiece attachment/detachment command is on the center side! 11
41 section 21, and from the upper vise, the clamp ff1 (N) of the workpiece W is outputted to the center fllJ# section 21. At position 1!5, a first cross slide 4a is provided on one side 1 of the workpiece W, for example, on the right side in FIG. A second cross slide 4b is provided, and a third cross slide 4C is provided on the gate-shaped pedestal 5 that straddles the workpiece wt.These first, second and third cross slides 4a , 4b and 4C are respectively mounted with first, second and third drilling heads 5a, 5b and 6C, and the drill holes attached to the respective drilling heads are arranged on a plane perpendicular to the respective rotational axes. It is configured to be slidably displaced and to be fed in the direction of each rotational axis to the workpiece W. These displacements and feeds are driven by a hydraulic cylinder device or t/'i. All of these operations are carried out independently of each other by a feed screw driven by an electric IK.

The positioning of each cross slide 4a, 4b and 4C on each sliding plane is carried out by a nine-hole positioning control device ff18a, 8b and 8C provided respectively. That is, taking the first cross slide 4m as an example, the drilling head 6& is provided with a detector mounting rod 9, and the detector mounting rod 9 is provided with a light emitter 10& and a light receiver 10b.
A photoelectric detector consisting of
There is a drilling position fl! between 0& and the light receiver 10b. A designation plate 11 is inserted. The drilling position designation plate 11 is the drilling head 6a.
A mark corresponding to the stop position fK is arranged on a flat plate, and a punch plate made by punching holes in a thin metal plate is used. A photoelectric detector searches for the mark on the drilling position indicating plate 11 by moving the cross slide 4a to control the stop position of the drilling head 6a. Each of the drilling heads 5a, $b, and 6C independently performs drilling in a predetermined pattern based on instructions from the central control unit 21 in accordance with the information written on the drilling position indication board 11 as described above, and When all the holes in the predetermined pattern have been completed, a hole completion signal is generated and sent to the central control unit 21.

At the front and back of the main vices 3a and 3b on the outside of the workpiece W in the longitudinal direction, there are first and second transport vice stands 12JL and 1
The first and second conveying vices 13 mounted on 2b
JL and 13b are provided. First and second transport vice stands 12JL and 12J-j, respectively, transport stands 14'i, 14b): are provided to be able to freely slide back and forth along the longitudinal direction of the workpiece W, and each is driven by a hydraulic cylinder. According to instructions from the central control ff121 of the first and second conveying vises 13JL and 13b#'i, which are carried out independently by a feed screw using a device or an electric sound.
Either one of them has a zelkova structure that pinches the workpiece W and transports it a predetermined distance from the left to the right in FIG.

This conveyance distance can be set by the stroke IQ9 of the first and second conveyance vice stands 12a and 12b. A photoswitch 1 for detecting passage of the end surface of the workpiece W is located near the second conveyance vice 13b.
5 is provided, and its output e is led to the central system # section 21.

Next, the operation will be explained according to the flowchart shown in FIG. First, when the workpiece W is set at a predetermined position and a start command is given, the main vice 3 clamps and fixes the workpiece 2, and a workpiece clamping signal is sent from the F vice to the central control unit 21. The workpiece is then clamped. Next, the first. The second and third drilling heads 5a, fib and 6C are
A group of holes in a predetermined pattern is independently drilled in accordance with information written on a drilling position indicating plate 11 set in each of the drilling position control devices 8a, gb, and 8C.

Each of the drilling position control devices 85, 8b, and 8C issues a drilling completion signal when all drilling of the hole group of each pattern is completed, and the signal is guided to the central control unit N21, and the central control unit 21 At the time when drilling completion signals are received from all the drilling position control devices, the main vice, the first transport vice stand 12IL, and the transport vice 13
A command is issued to JL to transport the workpiece W by a predetermined distance. This conveyance may be performed by one stroke of the first conveying vice stand 12&, or may be performed by multiple strokes. When the conveyance is finished, the workpiece WFi is again clamped in the main vise, and the above-mentioned predetermined pattern of perforation is performed.When the all-perforation completion signal is issued, the above-mentioned conveyance is executed again, but the tip surface of the workpiece W has reached the placement position of the photoswitch 15, KFi, the transfer vice stand 12b and #1 of this transfer #:t#I2
The workpiece W is drilled with a predetermined pattern of holes in the longitudinal direction by the conveying vice 13b of 2B. It has been explained that a detection photoswitch is provided near the second conveyance vise, and after detecting the front end face in the workpiece conveyance direction, conveyance is executed by the conveyance vise of the cylinder 2. It is installed near the vise for detecting when the workpiece passes through the face of the workpiece in the transport direction, and then the second
The conveyance may be carried out using a conveyance vise.

Friend, a drilling device that controls the position of a drilling head according to information written in a storage device to independently form holes in a predetermined pattern on at least two sides of a section steel is an independent position #jt by numerical control. , a trick method may be used.

As explained above, according to the present invention, it is possible to automatically drill a group of holes in a predetermined pattern with high accuracy over the entire length of the workpiece, regardless of whether the workpiece is large, small, medium, or short. It's hot.

[Brief explanation of drawings]

Fig. 1 shows an example of the drilling position of H-beam steel, and Fig. 2 shows the example 1 of the present invention! Partial view % #swJ is the Moum arrow view. j! FIG. 14 is a block diagram showing the configuration of the control circuit according to the embodiment of the present invention, and FIG. 6 is an f70-chart showing its operation. 3a, 3b...Main vice, 6a, 6b, 6C...@1. Second and third drilling heads, 8JL, 8b, gC...@1. Ig2o and third drilling position control device, lQa... Emitter* 10b... Light receiver,
12 &, 12b... 1st j? and second conveyance vice stand, 13m, 13b...first and 142nd conveyance vice, 15...photo switch, 21...center side INJ section. Proceedings "E" (spontaneous) 1. Indication of matter A 11 1982 Patent Application No. 78721 2 Title of invention Automatic drilling device for shaped steel 3 Name of person making the amendment Daito Seiki Co., Ltd. Representative Tadahiro Sugimoto・19 Agent Address: 15-13-5 Usagano-cho, Kita-ku, Osaka City, Sode IT
-Instruction [1 included spontaneous supplementary iFG, ? ! +, 'E
Subject of Specification 7, Contents in Sleeve + Attachment (-J) Contents of amendment amended as shown in the appendix. (2) Statement W, page 4, line 3, “Transportation HSS mechanism
be corrected as "transportation means". (3) “Figure 2” on the 19th line of the 4th line of the specification! Figure 3
and correct it. (4) "In Figure 1" on page 7, line 8 of the specification box] No. 2
"In the figure" is corrected. (5) Add the following statement between the 18th and 4th lines of the specification. [Furthermore, the first and second conveyance means are not limited to the movable vice mechanism described in the embodiment, and may be implemented in place of other known conveyance means such as a nipping roller, and the conveyance amount may be A feed rate measuring device can also be installed for control. . 2. Scope of Claims A drilling device that controls the position of a drilling head in accordance with information written in a storage device to independently form holes in a predetermined pattern on at least two sides of a shaped steel, and a shaped steel of the drilling device. A main vice mechanism that is installed at the front and rear in the longitudinal direction and holds the section steel;
First and second conveyors are provided at the front and rear of the outside of the main vice mechanism in the longitudinal direction to sandwich and convey the shaped steel a predetermined distance, and a shaped steel that detects the passage of the end face of the shaped steel at a predetermined position. Detection of a detection device, an AND detection device that detects that a drilling completion signal that is output when all drilling of the predetermined pattern on a certain drilling surface is completed for all drilling surfaces, and the section steel detection device According to the signal, the shape steel transport work is carried out using the first transport W! The second above from various means!
l! Equipped with a means for switching to conveyance (transfer), transport (4), and recess (41), which performs perforation in a predetermined pattern of L distribution with the shaped steel fixed, and (1) IM feeding of the shaped steel. Automatically performs drilling from the beginning of the section steel to the end.
Automatic drilling equipment for shaped steel.

Claims (1)

[Claims] A drilling device that controls the position of a drilling head according to information stored in a storage device to independently form holes in a predetermined pattern on at least two sides of a section steel; a main vice mechanism that clamps the shaped steel, and first and second conveying vice mechanisms that are provided before and after the main vice mechanism in the longitudinal direction of the shaped steel and pinch and convey the shaped steel a predetermined distance; A section steel detection device that detects passage of an end face of a section steel at a predetermined position, and a drilling completion signal that is output when all drillings of the above-mentioned predetermined pattern on a certain drilling surface are completed, and a drill that is output on all drilling surfaces. and a means for switching the conveyance operation of the shaped steel from the first conveying vice mechanism to the second conveying vice mechanism according to the detection signal of the shaped steel detecting device, and fixing the shaped steel. a step of perforating the predetermined pattern in the above-mentioned state;
An automatic drilling device for shaped steel that is configured to automatically drill holes from the starting end to the ending end of the shaped steel by repeating the process of transporting the shaped steel.