JPH058146A - Cut chip processing device - Google Patents

Abstract

PURPOSE:To prevent attachment of cut continuous chips generated by cutting to tools by biting them between cylindrical bodies and pulling them down while the forward end of the chips are discharged down stably by their own weight. CONSTITUTION:A plural number of cylindrical bodies 3 are installed holding a proper space for biting cut chips just under a processing tool 2 to be rotated by a drive unit 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip disposal technology,
In particular, the present invention relates to a chip processing device that improves the processability of continuous chips generated during turning.

[0002]

2. Description of the Related Art In particular, in turning among chips, continuous chips are liable to be generated and entangled with a tool or a workpiece.
There were cases where the machined surface was damaged or the tool was damaged. For this reason, it is indispensable for the operator to monitor and remove the presence of chip entanglement even in automatic lathes such as ordinary lathes and NC lathes. Further, since continuous chips are bulky, it is difficult to discharge them outside the machine tool, and there are many problems in secondary chip disposal such as when the chip bucket becomes full soon. These are major problems in automation of processing and labor saving.

Conventionally, in order to improve the processing property of such chips, a method in which a chip tool is provided with unevenness called a chip breaker, and chips are bent and bent into fine cuts by hitting the unevenness is generally taken. There is. This is described in the processing technology data file 401A00-00-09 issued by the Japan Machinery Promotion Association Technical Research Institute. Also, a chip removing device has been devised which automatically scrapes off the chips entwined with a tool with a brush or the like, as disclosed in Japanese Utility Model Publication No. 3-18115.

[0004]

However, even if a tool with a chip breaker is used and the work material is a tenacious material such as stainless steel, even if the shape of the chip breaker and the processing conditions are optimized, It is difficult to sufficiently cut the chips. Particularly when the processing conditions such as finish cutting are limited, it is almost impossible to shred the chips with a chip breaker. Therefore, in such a case, machining is often performed with continuous chips, which is a major obstacle to machining accuracy, work safety, and unmanned machining. Further, when the entangled chips are short, it is possible to scrape them automatically by a chip removing device using a brush or the like, but the effect cannot be expected with long continuous chips.

SUMMARY OF THE INVENTION An object of the present invention is to provide a chip processing apparatus which prevents the chips from being entangled with a tool or a workpiece and improves the chip disposability even in the processing in which continuous chips are generated. It is in.

[0006]

In order to achieve the above object, according to the present invention, a plurality of cylindrical bodies having suitable gaps for catching chips are arranged immediately below a machining tool. A drive was provided to rotate the body.

[0007]

In the chips generated continuously, if the chips are regularly shaped, the chips are hung down by their own weight immediately after the start of machining and are stably discharged downward. However, when the tip of the chips reaches the bottom of the machine, the chips rise from the bottom of the machine due to the rigidity and spring property of the chips themselves, and the discharge direction thereof changes irregularly depending on gravity. For this reason, the chips will be grooved on the tool or the work piece.

Therefore, in order to make the discharge direction of the chips always downward, a tip of the chips is caught in a gap having an appropriate width constituted by a plurality of cylinders, and the cylinders are rotated. Make sure that chips are continuously drawn downward. This ensures stable removal of chips,
It is possible to prevent entanglement with tools and work pieces. Further, the chips are finely crushed when passing through the gap between the cylindrical bodies, and the subsequent secondary chip disposability is improved.

[0009]

EXAMPLE An example of the present invention will be described below. In FIG. 1, reference numeral 1 generally indicates a chip disposal device. The chip processing device 1 is attached immediately below the processing tool 2. The chip processing apparatus 1 has a plurality of cylindrical bodies 3 attached at appropriate intervals, a transmission mechanism 4 for rotating the cylindrical bodies 4, and a drive unit 5 inside. A scraper 7 is attached to the inclined plate 6 so as to cover these upper parts and to contact the cylindrical body 3 at the lower part. The surface of the cylindrical body 3 is covered with a material such as rubber, which has a lot of friction.

FIG. 2 shows an embodiment in which the present invention is attached to a lathe 8. Chip processing device 1 is processing tool 2
It is arranged below the attached tool rest 9 and receives all the chips produced when the workpiece held by the turning chuck 10 is cut by the machining tool 2. Below the chip processing device 1, a chip transport device 11 is arranged.

The chip processing apparatus 1 operates as shown in FIG. That is, when the workpiece 12 is processed by the processing tool 2 and the continuous chips 13 having a regular shape are generated, the chips 13 are first naturally discharged downward by their own weight. The chips 13 reaching the chip processing apparatus 1 are inclined plates 6
Is quickly guided to the gap formed by the two cylindrical bodies 3 that are rotating. The cylindrical body 3 bites the chips 13 into the gap by friction and rotation of the surface. The chips 13 that have been caught are successively caught by the rotation of the cylindrical body 3 and sent downward. Therefore, the chips 13 are always directed downward in the discharge direction of the chips 13, and the continuous chips 13 can be stably discharged. As a result, it is possible to prevent the chips from being entangled with the tool or the work piece due to the irregular discharge direction of the chips. Further, the continuous chips 13 that have passed through the gap formed by the cylindrical body 3 are crushed by the cylindrical body 3, crushed and shredded into chips 14, and fall. Here, when a part of the crushed chips 14 bites into the surface of the cylindrical body 3, it is scraped off by the scraper 7. The crushed shavings 14 that have dropped are the trash transport device 1
1 easily transports it out of the machine and densely collects it in the packet 15. As described above, the secondary chip processing of continuous chips, which is bulky and difficult to carry out and accumulate outside the machine, can be facilitated by shredding.

[0012]

According to the present invention, the discharge direction of continuous chips is made constant and the chips are discharged stably, so that good cutting can be performed without the chips being entangled with the tool or the work piece. . Further, since continuous chips can be shredded, secondary chip processing such as chip transportation to the outside of the processing machine and accumulation becomes easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a chip disposal device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a usage state of the chip processing apparatus according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an operation according to one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Waste processing device, 2 ... Processing tool, 3 ... Cylindrical body, 4 ... Transmission mechanism, 5 ... Drive device, 6 ... Inclined plate, 7 ... Scraper.

Claims (1)

Claim: What is claimed is: 1. A chip processing device, comprising a plurality of cylindrical bodies which are rotatable just below a working tool and which can be rotated by a drive device so as to catch the discharged chips.