JPH0118253Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a processing machine that performs processing such as drilling on shaped steel, such as H-shaped steel and channel steel.

The above-mentioned processing machine is equipped with a horizontal drill for drilling into the vertical flange of H-section steel from the left and right directions, and a vertical drill for drilling into the horizontal web of section steel from above. ing.

Conventionally, the lowering start position of the vertical drill, in other words, the raising stop position, is determined by adjusting the dog position up or down depending on the size of the section steel, and when a detector provided on the vertical drill engages with the dog. It was configured to stop the vertical drill from rising.

Therefore, in the past, the position of the dog had to be adjusted every time the dimensions of the section steel changed, which was troublesome and inconvenient in terms of improving work efficiency.

The present invention has been made to solve the above-mentioned disadvantages, and preferred embodiments thereof will be described in detail below with reference to the drawings.

FIG. 1 is a front view of a section steel processing machine 1 embodying the present invention, in which a fixed column 5 is attached to one side of the main body base 3.
A beam member 7 is provided therebetween, and a movable column 9 on the other side forms a gate shape.

The beam member 7 is provided with a vertical drill base 13 that is supported by a guide rail 11 and can be moved and positioned in the horizontal direction in the figure.
5, and is driven by an electric motor 17, such as a pulse motor, to move and position it left and right.

The above-mentioned vertical drill base 13 is equipped with an electric motor 19.
A vertical drill head 21 that is driven and rotated is mounted downward via a fluid pressure cylinder 23, and the vertical drill head 21 is vertically lowered by the fluid pressure cylinder 23, for example, as shown in FIG.
After drilling a hole in the web 27 of a shaped steel 25 such as a shaped steel, it rises and returns to its original position.

In the section steel processing machine 1 shown in FIG. 1, the fixed column 5 is provided with a right horizontal drill head 29, and the movable column 9 is provided with a left horizontal drill head 31, each of which has a guide rail similar to the vertical drill head 21 described above. On a horizontal drill base 39 which is guided by a lead screw 37 guided by a lead screw 33 and driven by an electric motor 35 to move up and down and is positioned, a hydraulic cylinder 41 approaches a flange 43 of the section steel and drills a hole. They do this, defect, and return.

The electric motor 45 is a drive source that rotates the drill.

Further, a fixed vice frame 47 is provided on the fixed column 5 side on the main body base 3, and a moving vice frame 49 is provided on the movable column 9 side, and a web height measuring device 51 is provided on both vice frames.

This web height measuring device 51 has a slide sleeve 55 slidably mounted on a vertical guide post 53 provided on both vice frames 47 and 49 described above.
(See Fig. 2) A moving body 59 is provided which is driven by a fluid pressure cylinder 57 and is movable up and down. It is equipped with 61.

As clearly shown in FIG. 2, the above-mentioned web height measuring device 51 uses the solenoid valve 6 With the sensor head 6 demagnetized, pressurized oil from the pump P is sent to the fluid pressure cylinder 57.
The lower end of the steel section 1 is kept at a high position where it does not interfere with the upper end of the flange 43 of the shaped steel 25.

After gripping and fixing the shaped steel 25, the solenoid valve 63 is switched to guide the pressure oil from the pump P above the fluid pressure cylinder 57, the movable body 59 is lowered, and the probe 61 is brought into contact with the upper surface of the web 27. Ru. This state is shown by the broken line in FIG. 2, and in this case, the pressure switch 6 is
5 gives a signal.

A detector bracket 67 is provided horizontally on a portion (for example, a cylinder) of the fluid pressure cylinder 23 that moves up and down integrally with the vertical drill head 21 and protrudes toward at least one of the fixed vice frame 47 side and the movable vice frame 49 side. is attached.

On the other hand, above the moving body 59 is a dog 71.
is provided so as to be freely engageable and detachable from the above-mentioned detector 69.

In this case, as shown in FIGS. 2 and 3, when the vertical drill head 21 is located at the highest rising end and the web height measurement position 51 is also located at the highest rising end, the lower end surface of the section steel 25 is measured. The distance a between the lower end of the rod 61 and the lower end of the drill 73 is b, the distance between the protruding lower end of the dog 71 and the protruding actuator of the detector 69 is c, and the distance between the protruding upper end of the dog 71 and the lower end of the drill 73 is c. The distance between the detector 69 and the protruding actuator is d, and the drill 73 is connected to the upper surface of the web 27.
Let s be the desired distance at which the lower end of the terminal approaches and waits, then set as (ba)+c=s, c>0.

Since the apparatus according to the embodiment of the present invention is constructed as described in detail above, after the shaped steel 25 is gripped and fixed between the stationary vice frame 47 and the movable frame 49, the height of the web 27 on the shaped steel 25 is adjusted. The right lateral drill head 29 and the left lateral drill head 3 are adjusted according to the height position of the web 27.
Web height measuring device 5 for the purpose of determining the height of 1.
When the drill head 21 is lowered, the detector 69 detects the lowering of the dog 71 as shown in FIG.
It descends from the upper surface of 7 to a height position of the desired set value s and stops.

Therefore, by setting the above stop position to the lowering start position (raise stop position) of the vertical drill head 21, the vertical drill head 21 can be moved by the guide rail 11 of the beam member 7 to select the hole drilling position, and the drill 73 can be moved. This eliminates the inconvenience of starting and returning from an unnecessarily high position during the process of lowering the machine, drilling holes, and returning it to the starting position.

In other words, by using the web height measuring device prepared to determine the processing position height of the left and right horizontal drill heads, the vertical drill head is automatically lowered, streamlining the idle time during subsequent vertical drill work. The effect was obtained.

It should be noted that it is also easy to configure the device according to the embodiment of the present invention so that pairs of detectors and dogs are provided in multiple stages to detect the height position at which the drill has penetrated the web and to switch the drill device to the return stroke. I would like to add this.

[Brief explanation of the drawing]

Figure 1 is a front view of a section steel processing machine in which the present invention is implemented, Figure 2 is an explanatory diagram showing the vicinity of the web height measuring device, detector, and dog of the present invention, and Figure 3 is a
It is a side explanatory view of the figure. Explanation of the symbols representing the main parts of the drawings: 1... Shape steel processing machine, 13... Vertical drill base, 21... Vertical drill head, 51... Web height measuring device,
59...Moving body, 61...Measuring head, 69...Detector, 71...Dog.

Claims (1)

[Scope of utility model registration request] A vertical drill head 21 for machining the shaped steel 25 fixed on the main body base 3 from above is provided so as to be movable up and down, and horizontal drill heads 29 and 31 for machining from the left and right directions are movable back and forth in the left and right directions. and a web height measuring device 51 for measuring the web height position in the shaped steel 23. A dog 71 or a detector 69 is provided on a vertical measuring element 61 that can freely come into contact with the upper surface of the web 27,
A shaped steel processing machine characterized in that the vertical drill head 21 is provided with a detector or a dog that engages with the dog 71 or the detector 69 and can freely detect the lifting stop position of the vertical drill head 21.