JPS6322036Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Technical field of the invention This invention is a machine tool equipped with a suction mechanism for removing cutting waste, which is provided with a suction stop mechanism.

(b) Prior art and problems In order to forcibly remove cutting waste when cutting a workpiece, there is a machine tool with a suction mechanism that sucks out cutting waste from a shielding part that covers the tool part. , Small parts may be machined using such machine tools.

When machining small parts, each time the machining is completed, suction must be temporarily stopped, the machined small part must be moved to another location, and the cutting waste must be sucked out.

However, in order to stop suction with a conventional machine tool, the motor of the dust collector connected to the suction port of the machine tool must be stopped. In this case, it takes several seconds from turning off the motor switch to completely stopping suction, which poses a problem of poor workability.

In addition, if the machine tool's suction port is covered with a plate, suction can be stopped, but in this case, unless the air or other fluid sucked in by the dust collector's blower is supplied from another part, the inside of the dust collector will become vacuumed. There is a problem in that the entire dust collector connected to the machine tool must be reinforced.

(c) Purpose of the invention In this invention, the suction dust collector connected to the machine tool is left in operation, the pipe section from the shielding part of the machine tool to the suction port is shielded to stop suction, and this pipe To provide a machine tool capable of stopping suction at high speed by introducing a fluid such as air from the outside into the machine tool.

(d) Example of the invention Next, an exploded configuration diagram of an example of this invention is shown in FIG.

In FIG. 1, 1 to 3 are pipes, 4 is a bar, 5 is a machine tool, and 6 is a shielding portion.

The pipe 1 has an end 11 and an end 12.

The pipe 2 has an end 22 and an end 23, a hole 24 in the side surface, and a valve seat 21 in the end 23.

The pipe 3 has an end 34 and an end 35, the end 34 being shielded and the end 35 being open. Further, a hole 31 is provided on the side surface, a valve seat 32 is provided inside the hole 31, and a valve seat 33 is provided inside the pipe 3 at a position facing the valve seat 32.

A valve 41 that goes in and out of the valve seat 21, a valve 42 that goes in and out of the valve seat 32, and a valve 43 that goes in and out of the valve seat 33 are attached to the bar 4.

The processing machine 5 includes a tool 51, a workpiece 52, and a table 53.

In FIG. 1, a workpiece 52 is processed as follows.

The shielding part 6 is lowered and the workpiece 52 is held down by the lower end of the shielding part 6. In this state, the shielding portion 6 is in a form that covers the machining portion made up of the tool 51 and the workpiece 52.

Next, the tool 51 is lowered while rotating, and the object 52 to be lowered is processed with the tool 51. Cutting waste and the like are taken out from the hole 61 of the shielding part 6 during processing.

Next, the assembly diagram of FIG. 1 is shown in FIG. 2.

In FIG. 2, the end 11 of the pipe 1 shown in FIG.
It is connected to 4.

Further, the end portion 22 of the pipe 2 is connected to a hole 31 provided in the side surface of the pipe 3.

FIG. 2 shows a state in which the bar 4 is moved toward the pipe 3 by the drive mechanism 7, with the valve 41 entering the valve seat 21, the valve 42 coming out from the valve seat 32, and the valve 43 moving from the valve seat 3.
3, bar 4, valves 41 to 43, and valve seat 2
The positional relationship of 1, 32, and 33 is determined.

As is clear from FIG. 2, the shielding part 6 of FIG.
The air inside passes through the pipes 1 to 3 from the hole 61,
It communicates with the end 35. Therefore, processing machine 5
Cutting waste caused by the cutting can be sucked out from the end 35.

Next, another state diagram of FIG. 2 is shown in FIG.

FIG. 3 is a state diagram in which the bar 4 is moved to the opposite side of the pipe 3 by the drive mechanism 7, and the valve 41 is moved to the side opposite to the valve seat 2.
1, the bar 4 and the valves 41 to 4 are connected so that the valve 42 enters the valve seat 32 and the valve 43 exits from the valve seat 33.
3. The positional relationship of the valve seats 21, 32, and 33 is determined.

As is clear from FIG. 3, the air within the shielding portion 6 communicates with the outside through the valve seat 21 of the pipe 2, and is blocked from reaching the end portion 35 by the valve 42 and the valve seat 32. Therefore, the cutting waste in the shielding part 6 is removed from the end 35.
It cannot be forcibly sucked out. On the other hand, since the valve seat 33 communicates with the outside of the pipe 3, air can be sucked out from the end 35.

In addition, if a flexible material is used for the pipe 1 shown in FIGS. 2 and 3, the shielding part 6 for processing can be used.
The end portion 35 can be fixed regardless of whether it is raised or lowered.

In FIG. 2, the air within the shield 6 communicates to the outside through the end 35, so that FIG. 2 can be used as a normal suction mechanism.

In FIG. 3, the operation of forcibly sucking out the air inside the shielding part 6 from the end 35 is interrupted;
Side pumping operations can continue.

Therefore, in the state shown in FIG. 3, suction from inside the shielding part 6 can be temporarily stopped while the dust collector connected to the end part 35 remains in operation.

(e) Effect of the invention According to this invention, just by moving bar 4,
The portion of the pipe 2 leading to the end portion 35 can be opened and closed at high speed. Therefore, even when processing small parts that may be sucked out at the end 35 side,
Since sucking out of the end portion 35 can be stopped at high speed each time the machining is completed, the machining work can be carried out efficiently.

[Brief explanation of the drawing]

FIG. 1 is an exploded configuration diagram of an embodiment according to this invention.
2 is an assembled view of FIG. 1, and FIG. 3 is another state diagram of FIG. 2. 1...Pipe, 2...Pipe, 3...Pipe,
4... Bar, 5... Machine tool, 6... Shielding part, 7
... Drive mechanism, 11 ... End of pipe 1, 12 ...
...End of pipe 1, 21...Valve seat, 22...End of pipe 2, 23...End of pipe 2, 24...
Hole, 31...hole, 32...valve seat, 33...valve seat,
34... end of pipe 3, 35... end of pipe 3, 41... valve, 42... valve, 43... valve.

Claims (1)

[Claims for Utility Model Registration] The first end 11 of the first pipe 1 is
the second end 12 of the first pipe 1 is connected to the hole 24 provided in the side surface of the second pipe 2; the end 22 of the third pipe 3 is connected to a hole 31 provided in the side surface of the third pipe 3; the fourth end 23 of the second pipe 2 is provided with the first valve seat 21; 3 inside the second valve seat 3
2, a third valve seat 33 is provided inside the third pipe 3 at a position facing the second valve seat 32, a first valve 41 that enters and exits the first valve seat 21, and a second When the second valve 42 that goes in and out of the valve seat 32 and the third valve 43 that goes in and out of the third valve seat 33 are connected by the bar 4, and the bar 4 is moved to the third pipe 3 side. ,
The first valve 41 enters the first valve seat 21, the second valve 42 exits from the second valve seat 32, the third valve 43 enters the third valve seat 33, and the bar 4 enters the third valve seat 33. When the first valve 41 is moved to the side opposite to the pipe 3 of No. 3, the first valve 41 comes out from the first valve seat 21,
A machine tool with a suction stop mechanism characterized in that the second valve 42 enters into the second valve seat 32 and the third valve 43 exits from the third valve seat 33.