KR20120063302A - Long chip remover - Google Patents

Abstract

PURPOSE: A long chip removing device for a machine tool is provided to easily remove a long chip as a rotary arm hits the long chip with rotating. CONSTITUTION: A long chip removing device(100) for a machine tool comprises a cutting oil-injection arm(110), a rotary support body(120), and an actuator(130). The cutting oil-injection arm injects high pressure cutting oil to chips in order to remove the chips generated when a work piece is processed. The rotary support body rotatably and partially supports the cutting oil-injection arm. The actuator is connected to a part of the cutting oil-injection arm, and removes the long chips by mechanically rotating the cutting oil-injection arm around the rotary support body.

Description

Long chip remover for machine tools

The present invention relates to a long chip removing device, and more particularly, to a long chip removing device for a machine tool that can be easily applied to a machine tool to remove the long chip.

Various types of machine tools are widely used, including turning centers, machining centers, NC borings, door machining centers, swiss turns, and electric discharge machines.

Among these, turning centers and machining centers are briefly introduced, turning centers offer various lineups from simple turning to cutting-edge complex machining. Machining centers offer various lineups from heavy cutting to high-precision mold processing. It is widely used throughout.

Hereinafter, the description will be made simply as a machine tool without limiting the type.

If a machine tool is to be used to machine the outer diameter of the work piece, the work piece is transferred by a sub spindle to the guide bush at the working position, where the work piece is to be worked. Once in position, the outer surface of the workpiece is machined in accordance with the action of the bite placed in the adjacent position.

That is, as the bite is pressed against the outer surface of the workpiece when the workpiece is rotated, the outer surface of the workpiece can be machined to the required shape and dimensions.

On the other hand, in the process of processing the outer surface of the workpiece is generated a long chip (long chip) separated from the workpiece.

For example, when the skin of the colored pencil is peeled off and the core of the colored pencil is exposed to the outside, the skin is peeled off while the skin is peeled off, which is the long paper.

Unlike colored pencils, which are stationery, long chips generated from metal workpieces are not only easy to remove because they are not only easily cut because of their high degree of processing depending on the degree of processing of the outer surface.

In fact, even though the long chip is a dummy that must be removed, if the long chip is continued without the long chip removed properly, a process error is likely to occur when the sub spindle transfers the workpiece.

For example, if the machining is completed on the front surface but there is a long chip on the workpiece, when chucking the work piece on the sub spindle, the error occurs as much as the thickness of the long chip to chuck or chuck the chip. It can be impossible. This can then lead to dimensional errors in the machining process or to collisions between the sub spindle and the workpiece.

Further, for example, various process errors are likely to occur, such as transferring the workpiece to the wrong position, or the sub spindle cannot chuck the workpiece at the correct position and chucking the workpiece at the wrong position.

Therefore, the development of a device for removing long chips is required, but if the long chip is to be removed through a complicated structure, it is not only easy to apply to a machine tool but also may increase the overall cost of the machine tool. There is a need for a method capable of removing long chips generated during machining of the outer surface of a workpiece while having a structure.

Accordingly, the present invention has been made to solve the problems described above, the purpose of the simple and simple structure is easy to be applied to the machine tool, as well as above all the long chip generated during the machining of the workpiece It is to provide a long chip removal device for machine tools that can be effectively removed.

In order to achieve the above object, a cutting oil injection arm for injecting a high-pressure cutting oil toward the long chip for the removal of long chips generated during the machining of the work piece using a machine tool; A rotary support partially rotatably supporting the cutting oil injection arm; And an actuator coupled to one region of the cutting oil spraying arm and mechanically rotating the cutting oil spraying arm around the rotating support to remove the long chip.

In addition, the present invention further provides the following specific embodiments of the above-described embodiment of the present invention.

According to one embodiment of the present invention, the actuator may be a cylinder, and the actuator may be operated after the high pressure cutting oil is injected through the cutting oil injection arm.

According to one embodiment of the invention, the coolant jetting arm comprises: a fixed arm coupled to a lower region frame of a sub spindle provided in the machine tool and an end region coupled to the rotating support; And one end coupled to the rotatable support and the other end exposed to the outside of the sub spindle, the other end directed toward a working position at which the workpiece is to be machined, the actuator being connected to the rotary arm. It is characterized by being combined.

According to an embodiment of the present invention, the rotatable support includes: a housing which is pinned to the sub spindle side and to which the fixed arm is connected; A rotating body provided to be movable along an outer surface of the housing and to which the rotary arm is connected; A flange provided on an upper portion of the rotating body to support the rotating body to the housing; And a cutting oil flow path formed inside the housing and the rotating body to flow the cutting oil.

According to the present invention, since it has a simple and simple structure, it is not only easy to be applied to a machine tool, but also, among other things, there is an effect of effectively removing the long chip generated during the external machining of the workpiece.

1 is a perspective view of a machine tool provided with a long chip removal apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of region A of FIG. 1, illustrating a process in which high pressure coolant is injected through a coolant spray arm. FIG.
3 is a view showing a different angle of Figure 2 showing the process of rotating the coolant injection arm.
4 is a rear view of FIG. 1.
FIG. 5 is an enlarged view of the long chip removing device provided in region B of FIG. 4.
6 illustrates the operation of FIG. 5;
7 is a cross-sectional view taken along line CC of FIG. 6.

Hereinafter, an embodiment of a long chip removal apparatus for a machine tool according to the present invention will be described with reference to FIGS. 3 to 7.

1 is a perspective view of a machine tool provided with a long chip removal apparatus according to an embodiment of the present invention, Figure 2 is an enlarged view of the region A of Figure 1 showing the process of high-pressure cutting oil is injected through the cutting oil injection arm, FIG. 3 is a view illustrating the cutting oil jetting arm rotated at different angles, and FIG. 4 is a rear view of FIG. 1 and FIG. 6 is a view illustrating the operation of FIG. 5, and FIG. 7 is a cross-sectional view taken along line CC of FIG. 6.

As shown in these figures, the long chip removal apparatus 100 of the present embodiment can be applied to the machine tool of FIGS. 1 and 4 for machining the outer diameter of a work piece (W).

The long chip removal apparatus 100 may be an apparatus integrated with the illustrated machine tool, or may be separately used and then coupled to the machine tool. Any form should fall within the scope of the present invention.

Prior to the detailed description of the long chip removal apparatus 100, it is briefly described with respect to the machine tool shown in Figs.

Machine tool to which the long chip removal apparatus 100 of the present embodiment can be applied is to process the outer diameter of a workpiece (also called a W or a workpiece), and includes a guide bush 1 and a sub spindle 3. , A plurality of vises 5, and a vise driving means 7 for driving the plurality of vises 5.

The guide bush 1 forms the working position at which the workpiece W is machined. When the work piece W is processed, the work piece W is chucked and rotated in the guide bush 1 as shown in FIGS. 1 and 2.

The sub spindle 3 serves to chuck the workpiece W and transfer it to the guide bush 1. The work piece W must be correctly chucked in place of the sub spindle 3 so that the work piece W can be correctly transferred to the guide bush 1 through the sub spindle 3.

The plurality of vises 5 are pressed against the outer surface of the work piece W chucked to the guide bush 1 to serve to process the outer diameter of the work piece W by interaction with the guide bush 1.

On the other hand, as described above, in the process of processing the outer surface of the workpiece (W) is generated long chip (L / C, long chip) separated from the workpiece (W).

The long chip L / C is a dummy that is cut and removed at the corresponding position. If the long chip L / C is not removed, when the sub spindle 3 transfers the workpiece W, Process errors should be eliminated because of the high likelihood of occurrence. To this end, the long chip removing apparatus 100 of the present embodiment is provided.

The long chip removal apparatus 100 of the present embodiment mainly includes a cutting oil injection arm 110, a rotating support 120, and an actuator 130, as shown in FIGS. 4 to 6.

The cutting oil injection arm 110 serves to inject high-pressure cutting oil toward the long chip L / C in order to remove the long chip L / C generated in the process of the outer surface of the work piece W being processed.

Depending on the strength of the long chip (L / C) may be removed with a high-pressure cutting oil alone, but most are not removed. However, when high-pressure cutting oil is injected into the long chip L / C, it may be advantageous to remove the long chip L / C mechanically.

The high pressure coolant injection process through the coolant injection arm 110 proceeds when the sub spindle 3 waits before the sub spindle 3 delivers the workpiece W to the working position. Therefore, it is possible to eliminate the process (loss) that takes a separate time to remove the long chip (L / C).

The coolant injection arm 110 has a fixed arm 111 coupled to the lower region frame 4 (see FIGS. 1 and 4) of the sub spindle 3 and having an end region coupled to the rotary support 120, and one end thereof. Rotating arm 112 coupled to the rotary support 120 and the other end 112a is exposed to the outside of the sub spindle 3, and the other end 112a is bent toward the working position at which the workpiece W is machined. It is provided.

As shown in the figure, the fixing arm 111 has a bent step shape, and the rotating arm 112 has a shape in which the other end 112a, which is an exposed end, is slightly bent.

The fixed arm 111 has a step shape so that it can correspond to the lower region frame 4 of the sub spindle 3, and the other end 112a, which is the exposed end of the rotating arm 112, is slightly bent. Having a is to facilitate the injection of the cutting oil toward the long chip (L / C). However, the scope of the present invention need not be limited to these shapes.

The rotary support 120 serves to partially rotatably support the cutting oil injection arm 110.

In other words, the rotatable support 120 connects them between the fixed arm 111 and the rotatable arm 112 while supporting the rotatable arm 112 to be rotated like a dashed line and solid line in FIG. 6.

As shown in FIG. 7, the rotatable support 120 is coupled to the pin spindle 121 on the sub spindle 3, along the housing 122 to which the fixed arm 111 is connected, and the outer surface of the housing 122. A rotating body 123 provided to be movable and connected to the rotating arm 112, a flange 125 provided on the upper side of the rotating body 123 to support the rotating body 123 to the housing 122, and a housing ( 122 and a cutting oil flow path 124 formed inside the rotating body 123 to which cutting oil flows.

The actuator 130 is coupled to one area of the coolant jet arm 110, in particular the rotary arm 112.

 The actuator 130 strikes the long chip L / C while mechanically rotating the rotating arm 112 from the dotted lines in FIGS. 2 and 6 to the solid line (or the solid line in the solid line) with the rotation support 120 as the axis. It finally serves to remove the long chip (L / C).

The actuator 130 may be provided as a hydraulic, pneumatic or hydraulic pneumatic compound cylinder, the operation of the actuator 130 is operated after the high-pressure cutting oil is injected through the cutting oil injection arm (110).

Specifically, the actuator 130 may be divided into a main body 130a and a rod 130b, and the rod 130b is mounted in a state in which the main body 130a is bracketed to the lower region frame 4 of the sub spindle 3. Can rotatably operate the rotation arm 112.

As a result, the long chip removal apparatus 100 of the present embodiment first removes the long chip L / C without failure by spraying high pressure cutting oil of 70 bar or more and then secondly removing the long chip L / C by mechanical force. I can do it.

Looking at the operation of the long chip removal apparatus 100 having such a configuration as follows.

First, when the sub spindle 3 waits before the sub spindle 3 delivers the workpiece W to the working position, a high pressure coolant of about 70 bar or more is supplied through a separate coolant supply unit (not shown). 110).

The supplied high pressure cutting oil is transmitted to the rotating arm 112 through the fixed arm 111 and the cutting oil flow path 124 and sprayed to the long chip L / C through the other end 112a which is the exposed end of the rotating arm 112. do.

Next, as the sub spindle 3 is moved to the working position, the rotary arm 112 approaches the long chip L / C, at which time the actuator 130 is operated.

That is, the rod 130b of the actuator 130 is operated in the direction of the arrow of FIG. 6 to move the rotating arm 112 from the dashed line in FIG. 2 and FIG. Rotate mechanically. As the rotation arm 112 is rotated as described above, the long chip L / C is hit, and thus the long chip L / C can be removed.

As described above, according to the present invention, it is easy to be applied to a machine tool because it has a simple and simple structure, and above all, it is possible to effectively remove the long chip long chip (L / C) generated during the external machining of the workpiece (W). Will be.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

100: 100: long chip removing device 110: 110: cutting oil injection arm
111: 111: fixed arm 112: 112: rotating arm
120: 120: rotating support 121: 121: pin
122: 122: housing 123: 123: rotating body
124: 124: coolant flow path 125: 125: flange
130: 130: actuator

Claims (3)

A cutting oil spraying arm (110) for injecting a high-pressure cutting oil toward the chip to remove chips generated when machining a work piece using a machine tool;
A rotary support 120 partially supporting the cutting oil injection arm; And
An actuator (130) coupled to one region of the coolant jetting arm (110) and mechanically rotating the coolant jetting arm (110) around the rotary support member (120) to remove the long chip; Long chip removal device for machine tools. The method of claim 1,
The cutting oil injection arm 110,
A fixed arm 111 coupled to one side of the lower region frame of the sub spindle provided in the machine tool and the other end coupled to the rotational support 120; And
One end coupled to the rotatable support 120 and the other end exposed outward of the sub spindle, the other end comprising a rotating arm 112 directed towards the working position where the workpiece is to be machined,
The actuator 130 is a long chip removal device for a machine tool, characterized in that coupled to the rotary arm (112). The method of claim 2,
The rotating support 120,
A housing 122 pin-connected to the sub spindle and to which the fixed arm 111 is connected;
A rotating body 123 provided to be movable along the outer surface of the housing 122 and to which the rotating arm 112 is connected;
A flange 125 provided on an upper portion of the rotating body 123 to support the rotating body 123 to the housing 122; And
And a cutting oil flow path (124) formed in the housing (122) and the rotating body (123) through which the cutting oil flows.

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