JP2550645Y2 - Chip suction device for machine tools - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip suction device used for removing and cleaning chips generated during a cutting operation by a machine tool or the like.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional chip blower device. The air compressed by the large compressor-4 is sent through the feed pipe 1. The feed pipe 1 includes a main pipe 2 and a branch pipe 3 separated from the main pipe 2. The number of the branch pipes 3 is determined according to the required number of places to be used. At the end of each branch pipe 3, a work implement 5 for controlling the blowing and stopping of the compressed air sent from the compressor-4 is mounted.
This working tool 5 is called a blower gun or the like. This blower gun comprises a blowout section 6 and a grip section 7. The inside of the blowing section 6 and the grip section 7 is a passage for compressed air. Below the grip 7, there is a mounting portion 8 for mounting the end of the branch pipe 3. The mounting portion 8 and the outlet 9 communicate with each other. Then, by pulling the trigger 10 provided on the upper portion of the grip portion 7, the compressed air sent from the compressor is blown out from the blowout port 9. Further, the blowing can be stopped by releasing the trigger portion 10.

[0003] The compressed air of the blower gun blows off chips generated during the cutting operation of the machine tool to clean the machine tool and the workpiece.

[0004]

In the conventional apparatus, chips are blown off by compressed air, so the blown chips adhere to the sliding surface of the machine and damage the machine, or damage the floor of the workplace. There was a problem of getting dirty. There is also a danger that the blown chips may enter the eyes of the worker.

An object of the present invention is to provide a chip suction device such as a machine tool for safely and cleanly sucking chips and the like into a suction device main body by a simple operation of a suction operation tool.

[0006]

According to the present invention, a chip suction device such as a machine tool provided with a suction operation tool for a suction operation at an end of a feed pipe mounted on a suction device main body is provided on the suction operation device. The operation lever, the piston rod and the piston interlocked with the operation lever are moved to the piston storage portion in the working instrument, and the suction passage is opened to control the suction operation and stop.

[0007]

As a result of the above construction, chips generated during the operation of the machine tool are sucked by the suction operation tool operated by the operation lever, and collected in the suction device main body through the feed pipe. For this reason, the chips do not scatter anywhere and do not damage the machine tool or the workpiece.

[0008]

1 to 4 show an embodiment of the present invention. The same reference numerals are used for the same components as in the conventional example, and the detailed description is omitted.

FIGS. 1 to 3 show a first embodiment. The main pipe 2 of the feed pipe 1 attached to the suction device main body 11 is provided with a necessary number of branch pipes 3. At the end of each of these branch pipes 3, a suction operation tool 12 is attached. The suction working instrument 12 includes a suction unit 13 and a grip unit 14. The suction part 13 is a U-shaped pipe, and includes a suction path part 15 which is one of the U-shaped straight parts, and a cylinder part 16 which is the other straight part. The distal end of the suction path 15 is open. Chips are sucked from the opening 17, and at this time, a rubber protection pipe 18 is attached to the outer periphery of the opening 17 so as not to damage the workpiece or the machine. A piston 19 and a piston rod 2
0 is stored. Both ends of the piston rod 20 are threaded, and are penetrated through the piston 19 and fixed with nuts 21. A closing member 22 is fitted into the end of the cylinder 16 to close the cylinder 16.

The piston 19 housed in the cylinder 16 has an annular groove 23. An O-ring 24 is mounted in the annular groove 23. At this time, a wiper 25 is inserted so as to sandwich the O-ring 24 in the annular groove 23.
It is holding with. The O-ring 24 protects the O-ring 24 from cutting chips sucked by the wiper 25, so that the O-ring 24 can maintain the sealing function between the piston 19 and the cylinder portion 16. Further, the end of the piston rod 20 opposite to the side fixed to the piston 19 penetrates the closing member 22 and the cylinder portion 1
It protrudes out of 6. In the cylinder section 16, a spring 26 is provided between the piston 19 and the closing member 22 around the piston rod 20.

An operation lever 27 for starting and stopping the suction operation is attached to the back of the grip portion 14. The operation lever 27 has a U-shape and includes an operation unit 28 and an operation unit 29. A hole 30 for attachment to the grip portion 14 is formed in the fulcrum portion of the U-shape.
An operation lever-2 provided behind the hole 30 and the grip portion 14.
The pin 32 is inserted and stopped by aligning the holes 31 of the mounting portion 36 of FIG. At this time, the pin 32 is inserted so that the operation lever 27 can swing about the pin 32. Further, a hole 33 for receiving the piston rod 20 protruding through the closing member 22 of the cylinder portion 16 is opened in the operating portion 29 of the operation lever 27.
One end of the piston rod 20 protruding from the closing member 22 is passed through the hole 33, and the operating portion 29 side is stopped by a nut 34. Since the operating lever 27 and the piston rod 20 are attached in this manner, the piston 19 also moves in conjunction with the movement of the operating lever 27.

In the suction working instrument 12 constructed as described above, the operation lever 27 is usually at a position as shown in FIG. At this time, the operation lever is operated via the piston rod 20.
The piston 19 connected to 27 is pushed toward the opening 17 by a spring 26. The position of the piston 19 in this state is a position at which the passage 35 in the grip portion 14 and the suction passage 37 in the suction passage portion 15 communicating with the cylinder portion 16 are shut off. For this reason, even if suction force acts on the suction operation tool from the branch pipe 3 connected to the grip portion 14, the suction force is blocked by the piston 19 and does not reach the opening 17.
When the operating portion 28 of the operating lever 27 is gripped, the operating portion 29 of the operating lever 27 is pulled toward the closing member 22 of the piston rod 20. As a result, the piston 19 is also pulled toward the closing member 22 to connect the suction passage 37 and the passage 35 of the grip portion 14, and at the same time, the piston 19 is located in the piston storage portion 38, so that chips and the like can be removed from the piston 19, -Since the seal portion is not touched, the sealability does not decrease. In this state, the suction force from the branch pipe 3 acts up to the opening 17 to suck the chips.

The second embodiment shown in FIG. 5 is different from the first embodiment in that the suction unit 13 is changed from a U-shape of the first embodiment to a straight type. The reason why the suction unit 13 is U-shaped in the first embodiment is to operate the suction work implement 12 by pulling it with a finger when the operation lever 27 is gripped. The reason for making the mold is to operate the suction working instrument 12 by pushing it with the palm when the operation lever 27 is grasped. All other configurations other than the difference of the suction unit 13 are the same as those of the first embodiment and the second embodiment.

[0014]

[Effect] By bringing the suction working tool close to the machine tool or the workpiece and grasping the operation lever of the suction working tool, the piston interlocking with the operation lever opens the suction passage. As a result, the suction force from the suction device main body is transmitted to the suction working instrument via the feed pipe, and sucks chips generated during the cutting work of the machine tool.
At this time, since the piston is accommodated in the piston storage portion, the sealing function of the piston is not damaged by the sucked chips or the like, and the sealing function is not deteriorated. Then, if the suction is performed in this manner, the chips do not scatter and adhere to or damage the machine tool or the workpiece. In addition, various harm caused by scattering of chips, such as chips entering the eyes of workers,
It is also effective in the safety and health management of the worker, such as sucking in the oil blown off together with the swarf, and also has the effect that the main body of the machine tool, the inside, and the floor of the work place become clean.

[Brief description of the drawings]

FIG. 1 is an overall view of a suction working device according to a first embodiment.

FIG. 2 is a cross-sectional view of the suction working instrument of the first embodiment.

FIG. 3 is an enlarged sectional view of a piston of the suction working instrument of the first embodiment.

FIG. 4 is a sectional view of a suction working instrument according to a second embodiment.

FIG. 5 is an overall view of a conventional chip blower device.

[Explanation of symbols]

 1 Feed pipe 11 Suction device main body 12 Suction work equipment 19 Piston 20 Piston rod 27 Operation lever 37 Suction passage 38 Piston storage section

Claims (1)

(57) [Scope of request for utility model registration] In a swarf suction device such as a machine tool provided with a suction operation tool for a suction operation at an end of a feed pipe mounted on a suction device main body, an operation lever provided on the suction operation device is used to operate the chip. Suction of machine tools and other workpieces, etc., in which the piston rod and the piston linked to the operation lever are moved to the piston storage portion in the work implement and the suction passage is opened to control suction work and stop. apparatus.