JPS5859747A - Tool holder with chip sucking function and capable of automatic tool replacement - Google Patents

Abstract

PURPOSE:To eliminate the machine stoppage for removing chips and to continue an automatic operation for a long time by adding a tool holder for absorbing chips as one of preparatory tools of an ATC work machine. CONSTITUTION:When a tool holder 2 is fitted to a main shaft 1, an air passage 11 bored in a block 9 provided previously near the main shaft is connected to a passage 12 bored in a pin 8. When the compressed air is fed from A, a part of it is injected through a gap 18 opening backward a nozzle 4, and chips are absorbed through the tip of the nozzle 4 by this negative pressure and are discharged through E. A part of the compressed air is injected through an auxiliary nozzle 5 and is sprayed to the inside of a deep hole in case mere absorption is insufficient for the deep hole, then chips are absorbed through the nozzle 4. Thereby, the waste to stop the work temporarily for processing chips can be eliminated and the function of the automatic work can be further improved.

Description

[Detailed Description of the Invention] This invention provides a tool holder with a chip suction function.
By adding it as one of the preparatory tools for a machine tool with this function, it eliminates the need to stop the machine only to remove chips, enables automatic operation for longer periods of time, and allows for the accumulation or arbitrary removal of chips. This makes it possible to discharge to a specific location.

Conventionally, even though the machine operates automatically, such as a machine tool with an ATC function, due to the problem of chips, the automatic operation had to be temporarily stopped and the workpiece and work surface had to be cleaned.

In particular, when tapping and reaming, the machine was temporarily stopped even though the process was in progress, and the machine was restarted after removing the chips generated during pilot hole drilling.

This has been an obstacle to the original purpose of improving productivity. In addition, the method of cleaning was to blow compressed air to scatter the chips, or to prepare a large suction machine to perform suction.

An embodiment in which the present invention is mounted on a main shaft will be described below based on the drawings.

FIG. 1 shows an example in which a tool holder with a chip absorption function capable of ATC is installed on the main shaft of a machine tool.

When attaching the tool holder 2 to the spindle 1, the tool holder 2 is attached to the block 9 installed in advance in the non-rotating part near the spindle.
The bin 8 is positioned, and the air passage 11 bored in the block 9 and the air passage 12 bored in the bottle 8 are communicated with each other. In this state, when compressed air is sent from A, the compressed air flows through the pipes in the tool holder 2 as indicated by the arrows B and C, and the compressed air in the pipe 13 reaches the flow path 14 formed in the tool holder 2. , a bush 1 forming the rear end of the nozzle 4
5 and the tool holder 2, and communicates with the flow path 14, and is ejected from the discharge nozzle 3 to the pipe line 17 through a gap 16 that opens toward the rear end of the nozzle 4, and from the discharge nozzle 3 as shown by the arrow D. E is emitted into the atmosphere. At this time, D. Using the negative pressure generated at the tip of the nozzle 4 by compressed air passing through E, chips are sucked up from the tip of the nozzle 4 and discharged from E at the same time as the compressed air.

In addition, some of the compressed air is ejected from the conduit 13 through the tube 6 and from the auxiliary nozzle 5 attached near the tip of the nozzle 4, and when the hole is deep and cannot be easily cleaned by suction alone, the auxiliary nozzle 5 flows into the deep hole. The chips that are blown up and rolled up are sucked up from the nozzle 4.

Therefore, chips can be absorbed by attaching the tool holder of the present invention to the main shaft as shown in Fig. 1, and sequentially bringing the nozzle 4 closer to the hole machining section of the tap/reamer or the area where fine chips need to be removed. becomes.

Further, the direction E of ejecting chips can be arbitrarily determined according to the shape of the machine, and if the purpose is to accumulate chips, this can be done by attaching a storage bag-like object to the ejection nozzle 3.

As explained above, this invention eliminates the waste of temporarily stopping machining and manually cleaning due to the problem of chip disposal.
It not only further improves autonomous driving functions but also enhances safety.

[Brief explanation of the drawing]

The figures show an example in which the ATC-enabled tool holder having a chip absorption function according to the present invention is attached to a main shaft, with FIG. 1 showing a partially cutaway side view and FIG. 2 showing a front view. 1...Main shaft 2...Tool holder 3...Discharge nozzle 4...Nozzle 5...Auxiliary nozzle 6...Tube 7...Sublink 8...Bin 9...Block 10...Cover A...Air intake port B ...Bin air pipe line C...Air branch part D...Negative pressure generation part E...Discharge part Patent applicant Yamazaki Iron Works Co., Ltd. Procedures Amendment Book (115 File'NII! Item 1 1i1i'1li1. , Government +:'r +++
I.,](・1 Mr. March 20, 1981 [I Submit 1
Showa 5 ((I11'+17''1b J1 15th!l)
G O4"J'2 origin + jl (, good idea) name (21. 1 Ritazu Nuitori Nowa (notou) Rag 19 Kano Kanori Nouku 1; 1 JIri 11911'ulfil
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, 111-. /'1 Relationship with 1+i'j 111 stores 1 person i))+1
Postal Code r3 A 80-015 Supplement II- Interest Application 11:t,; A tool holder 2 capable of automatic tool change with a chip suction function as shown in Section 4 of the scope of the patent t1''j request, and an ATO
A tool holder that can be attached to the main +1111 and used depending on what is possible and necessary. 3. Detailed Description of the Invention The present invention provides a tool holder with a chip absorption function.
By adding it as one of the preparation tools of a machine tool with I"C function, it eliminates the need to stop the machine only for removing chips, and enables automatic operation for longer periods of time. This allows chips to be collected or discharged to any location.

Claims (1)

[Claims] A tool holder that has a chip absorption function as shown in item 4, is capable of ATC, and can be used by being attached to the spindle as necessary.