JPH05305546A - Machine tool - Google Patents

Abstract

PURPOSE:To provide a machine tool capable of avoiding a danger from a moving tool or work. CONSTITUTION:In a machine tool in which a tool or work is moved, a visual display means 9 for visually displaying the movement of a tool 5 or work 13 during its movement and an audible display means 10 for audibly displaying it are provided. The audible display means 10 plays a music, and its musical content is differed depending on the moving direction of the tool 5 or work 13. Since a danger is notified by the audible display means 10 or visual display means 9 during the movement of the tool 5 or work 13, safety can be enhanced even in the area difficult to cover with a photoelectric sensor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool such as a punching machine.

[0002]

2. Description of the Related Art In a machine tool in which a tool or a work moves, it is dangerous if a part or all of a human body enters the moving area. In order to avoid this danger, a photoelectric sensor system that detects a human body and issues an alarm or stops the movement of a tool or a work may be provided.

[0003]

However, when the photoelectric sensor system is provided as described above, if the machine tool is large, many photoelectric sensors are mounted in order to cover the entire area where the tool moves. If it is not done, safety cannot be expected. Further, if the number of the sensors is large, there is a problem that the machine tool cannot operate efficiently due to malfunction.

Therefore, an object of the present invention is to provide a machine tool capable of avoiding danger from a moving tool or work.

[0005]

In order to achieve the above object, in the first invention, in a machine tool in which a tool or a work moves, a visual display means for visually displaying the movement of the tool or the work while the tool or the work is moving. The gist is that an aural display means for aural display is provided.

The gist of the second invention is that the aural display means plays music and the music content is changed depending on the moving direction of the tool or the work. The gist of the third invention is that at least one of the visual display means and the auditory display means operates during work.

According to a fourth aspect of the present invention, in the machine tool, a pair of parallel rails, a tool erected between the rails and movable along the extending direction of the rails, and a work area formed between the rails are provided. It has as its gist.

[0008]

With the above arrangement, in the first aspect, when the tool or the work moves, the visual display means visually displays the movement. Further, similarly, the auditory display means performs auditory display.

In the second invention, music is played when the tool or the work moves. In this case, a different melody flows during the small movement during machining and when the machining is completed and the original point is returned, and the moving direction of the tool or the work can be known.

According to the third aspect of the invention, for example, the visual display means performs visual display during processing, and the auditory display means performs auditory display during the return to the origin when the processing is completed. At least one works during work.

In the fourth aspect of the invention, the tool installed between the rails moves along the rails, and a work or the like is installed in a work area formed between the rails to perform work. As the tool moves along the rail, visual and audible indications indicate the movement.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is embodied in a machine for carbide high speed drilling for steel structures will be described below with reference to FIGS.

As shown in FIG. 1, a pair of rails 1 extending in the same direction on a stationary surface such as a floor are fixed on a plurality of support bases 2. The rail 1 is covered with a rail cover 1a,
Not exposed to the outside. The gate-shaped frame 3 is installed between the rails 1 at the lower ends of both ends thereof, and is movably mounted and supported along the rails 1.

A feed screw 4 extending in a direction orthogonal to the rail 1 direction is supported on the frame 3 and reciprocally rotated by a motor (not shown). Further, on the frame 3, a drill unit 5 and a motor 6 which constitute a tool reciprocated by the rotation of the feed screw 4 are supported.
The drill unit 5 is composed of a drill 8 and a chuck 7 capable of gripping the drill 8, and is rotated by the motor 6. Similarly, the drill unit 5 is additionally provided with a rotating lamp 9 as a visual display means and a speaker 10 as an auditory display means. A boarding type operation panel 11 is disposed on the rail 1 at the end of the frame 3, and the machine is operated by riding on the operation panel 11.

A work table 12 which can be moved up and down is installed on a stationary surface between the rails 1, and a work 13 is mounted on the upper surface thereof.
Is placed. FIG. 2 shows the electrical configuration of this embodiment. The input means 14 is composed of a keyboard, a switch or the like, and all the operations of the machine tool are performed by the input means 14. The determination means 15 is composed of a microprocessor or the like, takes in an input signal from the input means 14, and controls the operation of this machine tool according to a program or the like. The auditory information storage means 16 is composed of a digital integrated circuit and stores and stores a melody or music. The auditory information storage means 16 is the speaker 1 which is the auditory display means.
0, and the stored music and the like can be played from the speaker 10.

On the other hand, the judging means 15 has the judging means 15
Drive means 17 including a relay or the like for transmitting a control signal from the device to an external drive device such as a motor is connected. The drive means 17 is also connected to the visual display means and can turn on the rotary lamp 9.

Next, the operation of the dedicated high-speed drilling machine configured as described above will be described. Now, when the program is started with the work 13 placed on the work table 12, the revolving light 9 is turned on and the music is played by the speaker 1.
Shed from zero. Then, the frame 3 moves on the rail 1 in the extending direction of the rail 1, and the drill unit 5 moves in the direction perpendicular to the rail 1. After that, the drill 8 is set at a predetermined drilling position, and at that position, the drill 8 descends while rotating, and the work 13 is drilled. This punching operation is continuously performed by the program. At this time, the judging means 15 judges the punching work of the device from the program or the input of the keyboard, and the melody for punching work is selected from the auditory information storage means 16. The melody for the punching work is kept flowing during the punching work, and the melody at this time is selected, for example, in the classical style, that is loose or that matches the tempo of the punching work.

Subsequently, when the drilling work is completed and the drill unit 5 and the frame 3 are returned to the origin, the judging means 15 detects the origin returning operation in the same manner as described above, and moves from the auditory information storage means 16 during movement. Select a melody. Then, the melody is played from the speaker 10 until the origin return of the drill unit 5 and the frame 3 is completed.
At the same time, the revolving light 9 is also turned on. Since the moving speed at the time of returning to the origin is set to be higher than that during the punching work, the melody at this time is stored in advance as a slightly uptempo melody.

As described above, by moving the music or the melody, the movement of the drill unit 5 and the frame 3 can be notified over a wide range. Therefore, the worker can surely recognize that the worker is moving, and it is possible to avoid a situation where the moving tool hits the worker. In addition, since the melody during the punching work is different from that during the movement, the working state can be easily known.

[0020]

[Second Embodiment] A second embodiment of the present invention embodied in a multi-axial drilling machine for steel structures will be described below with reference to FIG. In the following description, the same components as those of the above-described embodiment will be denoted by the same reference numerals in the drawings and will not be described.

As shown in FIG. 3, a base frame 18 is fixed to a stationary surface such as a floor surface, and a plurality of rollers 19 are arranged on the upper surface thereof. The gate-shaped frame 20 is placed and supported in the middle of the base frame 18 at the lower ends of both ends thereof. And the drill unit 21 that constitutes the tool
Is composed of a drill 24 and a chuck 23 capable of gripping the drill 24, and is supported on the frame 20 together with a motor 22. The drill unit 21 is rotated by the motor 22. Further, a rotary lamp 26 as a visual display means is attached to the drill unit 21.

A feed mechanism 25 including a gripping arm and a hydraulic piston is attached and fixed to the base frame 18. The feed mechanism 25 is capable of horizontally reciprocating in the direction in which the roller 19 is arranged, grips the work 29 placed on the roller 19, and moves the work 29.

The operation panel 28 for operating the dedicated multi-axis drilling machine incorporates the speaker 27 as an auditory display means, and
As in the first embodiment, the control circuit shown in FIG. 2 is incorporated. Next, the operation of the multi-axis drilling machine configured as described above will be described.

When the program is started with the work 29 placed on the roller 19, the feeding mechanism 2
5 moves the work 29 to a predetermined position, and the drill unit 21 is moved in the direction perpendicular to the roller 19. Then, the drill 24 is set at a predetermined drilling position, and at that position, the drill 24 rotates and descends to drill the work 29. At this time, the revolving light 26 is turned on to indicate that the punching work is being performed, but no music melody or the like is played.

Then, when the punching work is completed and the feeding mechanism 25 ejects the work 29, a melody indicating the ejection of the work 29 is played from the speaker and the work is continued until the ejection is completed. At that time, the revolving light 26 is turned off.

Therefore, since the punching work is displayed by the light of the rotary lamp 26 and the work 29 discharging work is displayed by the sound from the speaker 27, the working state can be easily known.

Next, a third embodiment in which the present invention is embodied in a machine for high-speed drilling for steel structures will be described with reference to FIGS. 4 and 5. In this embodiment of the high speed drilling machine, photoelectric sensors 30, 31, 32 are attached to the structure of the first embodiment. The pair of first photoelectric sensors 30 are attached to the lower ends of both ends of the frame 3 so that the line connecting the sensors 30 is located directly below the drill 8 of the drill unit 5. The height of the work table 12 is stopped when the optical axis between the sensors 30 is blocked by the work 13. Therefore, the distance between the drill 8 and the work 13 is always constant, and the descending stroke of the drill 8 is constant. Therefore, it is convenient for the control that the descending speed is increased until the drill 8 reaches just before the work 13, and then the speed is reduced.

Therefore, since the drill 8 is brought into contact with the work 13 slowly, the damage of the drill 8 is small, and the drill 8 is quickly lowered to the front, so that the time can be shortened. In addition to the first photoelectric sensor 30, two pairs of sensors are installed under the both ends of the frame 3 as described above. The working range of the drill 8 or the drill unit 5 is covered by the second and third sensors 31, 32. When a person or thing invades the area, those sensors 3
The optical axis of 1, 32 is blocked and the drill 8 or frame 3
Will stop moving.

The present invention is not limited to the configuration of the above-described embodiment, but may be modified and embodied as follows without departing from the spirit of the present invention. (1) In the above embodiment, the present invention is embodied as a machine for high-speed drilling, but it may be embodied as a pallet changer shown in FIG. That is, the pallet 3 on which the work 13 is placed
3,34 play music or melody while moving. At this time, it is possible to easily know which pallet is moving by changing the music with the two types of pallets 33, 34.

(2) It is possible to display the difference between the work in progress and the return-to-origin operation depending on the speed of the tempo so that the operator can select an arbitrary song within the tempo.

[0031]

According to the first aspect of the present invention, since the danger is notified by the auditory display means or the visual display means while the tool or the work is being moved, the safety can be enhanced even in the area where the photoelectric sensor is difficult to cover. Produce an effect.

According to the second aspect of the invention, since music is used for the auditory display means, the atmosphere in the workplace can be softened, and as with BGM, there is an effect that it is useful for maintaining the health of the worker or improving efficiency. Further, since the melody during machining is different from that at the time of returning to the origin, it is possible to know the moving direction of the tool or the work, and it is possible to enhance the safety. In addition, in the case of a large machine, the movement distance is long and it takes several minutes to return to the origin position, but by playing music that matches the time, it is possible to eliminate the frustration of the waiting time of the worker.

According to the third aspect of the invention, the visual display and the auditory display are selectively used depending on the operating state of the machine tool, so that the operating state can be easily known. Further, there is an effect that the difference between the states can be more surely notified by the visual display and the audible display to enhance the safety.

According to the fourth aspect of the invention, when the tool moves along the rail, the moving distance is long. Therefore, even in an area where the photoelectric sensor is difficult to cover, the audible display means or the visual display means informs of the danger. The effect that safety can be improved is exhibited.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a machine tool in which the present invention is embodied as a dedicated carbide high-speed drilling machine for steel structures.

FIG. 2 is a block diagram showing a control circuit of a machine dedicated to carbide high-speed drilling for steel structures and a machine dedicated to multi-axis drilling for structures.

FIG. 3 is a perspective view showing a second embodiment of a machine tool in which the present invention is embodied as a dedicated multi-axis drilling machine for steel structures.

FIG. 4 is a plan view showing a third embodiment of a machine tool in which the present invention is embodied as a dedicated carbide high-speed drilling machine for steel structures.

FIG. 5 is a front view showing the dedicated carbide high speed drilling machine for steel structures of FIG. 4;

FIG. 6 is a perspective view showing another example of a machine tool that embodies the present invention in a pallet changer.

[Explanation of symbols]

1 rail, 5 drill units that make up the tool, 9
A rotating light as a visual display means, a speaker as an auditory display means, and 13 works.

Claims (4)

[Claims] 1. A machine tool in which a tool or a work moves, wherein a visual display means for visually displaying the movement of the tool or the work while the tool or the work is moving, and an aural display means for aural display are provided. machine. 2. The machine tool according to claim 1, wherein the aural display means plays music and the music content is changed depending on the moving direction of the tool or the work. 3. The machine tool according to claim 1, wherein at least one of the visual display means and the audible display means operates during work. 4. The machine tool includes a pair of parallel rails, a tool that is installed between the rails and is movable along the extending direction of the rails, and a work area formed between the rails. The machine tool according to claim 1, wherein: