KR101658958B1

KR101658958B1 - Hybrid lathe for a roll die

Info

Publication number: KR101658958B1
Application number: KR1020150066116A
Authority: KR
Inventors: 오정석; 김창주; 심종엽; 노승국; 이찬홍; 허세곤; 이성철; 박천홍; 송준엽
Original assignee: 한국기계연구원
Priority date: 2015-05-12
Filing date: 2015-05-12
Publication date: 2016-09-23

Abstract

The present invention relates to a complex lathe turning device for manufacturing a roll mold, capable of easily manufacturing various large-area discontinuous fine patterns. The complex lathe turning device includes a stage unit, a main axis spindle, a transfer module, and a processing module unit. The stage unit includes: a base frame having a guide rail; a main shaft unit located on one end of the base frame; and a tailstock located at the other end of the base frame. The main axis spindle is fixed to the main shaft unit and rotates one end by fixing the one end of a roll unit extended in a first direction. A tailstock spindle is fixed to the tailstock and rotates the other end of the roll unit by fixing the other end of the roll unit. The transfer module is transferred in the first direction on the guide rail. The processing module unit includes first and second processing modules individually forming processing patterns in the roll unit by being individually located on both ends of a second direction vertical to the first direction of the transfer module.

Description

{HYBRID LATHE FOR A ROLL DIE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a complex machining center, and more particularly, to a complex turning machine capable of simultaneously performing lathe machining or milling machining and laser machining used for manufacturing a roll mold including a large area discontinuous fine pattern.

Recently, as the demand for display related products is diversified and increased, the necessity of composite or multifunctional display optical components is also increasing. Accordingly, there is an increasing demand for a roll mold for producing a fine pattern for producing a flexible substrate display or a flexible device.

Particularly, in the case of an optical component for a display such as a microlens array film, since a discontinuous fine pattern is formed and needs to be manufactured in a large area, there is a need for a technique capable of forming a discontinuous fine pattern in a large area in a roll mold .

However, in order to form a discontinuous fine pattern in a large area on a roll mold, it is necessary to develop a composite turning machine in which a plurality of machining steps can be performed in addition to a conventional continuous turning machining.

In this regard, Korean Patent Application No. 10-2012-0078734 discloses a technique relating to a variable machining apparatus capable of performing laser machining and milling machining in combination through a laser machining module and a milling machining module.

However, the variable machining apparatus has a structural limitation to be applied to a roll mold, and a composite turning machine capable of performing complex machining for roll mold production has not been developed so far.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a composite turning machine for manufacturing a roll mold capable of easily manufacturing various large area discontinuous fine patterns.

According to an aspect of the present invention, a complex turning machine includes a stage unit, a main spindle, a feed module, and a machining module unit. The stage unit includes a base frame having a guide rail, a main shaft disposed at one end of the base frame, and a tailstock located at the other end of the base frame. The main spindle is fixed to the main shaft and fixes one end of a roll portion extending in the first direction to rotate. The carded spindle is fixed to the tailstock so that the other end of the roll is fixed and rotated. Wherein the feed module is transported in the first direction on the guide rails. The machining module portion is located at both ends of a second direction perpendicular to the first direction of the transport module, 1 and second machining modules.

In one embodiment, the first processing module is a turning module or a milling processing module, and the second processing module is a laser processing module.

In one embodiment, the first and second processing modules may be transported on the transport module in the second direction.

In one embodiment, the first and second processing modules may be arranged to face each other and form processing patterns on opposite sides of the roll portion, respectively.

In one embodiment, when the first machining module is a turning module, the first machining module may comprise a plurality of tools spaced a different distance from the surface of the roll.

In one embodiment, when the first machining module is a milling module, the first machining module includes a tool mounted on the rotation fixing part and the rotation fixing part so that the angle formed by the tool with the surface of the roll part changes .

In one embodiment, the second machining module includes a nozzle section for oscillating a laser, a proximity sensor section for sensing a proximity state between the nozzle section and the roll section, and processing patterns formed on the roll section, And a measurement section for aligning the modules.

In one embodiment, the cardioplegia is conveyed in the first direction on the guide rail, the cardiospatial spindle places a measurement unit between the cardiamer and a measuring unit for measuring a change in length of the roll, .

In one embodiment, the measurement unit may include a circumferential frame forming an opening through which the carded spindle passes, and an encoder part interposed in the circumferential frame and measuring a change in length of the roll part. The encoder section may include an electrode section, a guard section covering the electrode section in the circumferential direction of the circumferential frame, and a buffer section covering the electrode section in the extending direction of the cardiospatial spindle.

According to the embodiments of the present invention, the first and second processing modules, which are respectively formed on both sides of the roll portion in the roll forming process, are transported in a direction perpendicular to the extending direction of the roll portion, It is possible to form a complicated or fine machining pattern through complex machining.

Particularly, since the first machining module is a turning or milling module and the second machining module is a laser machining module, it is troublesome to perform the setup again by changing the machining module or moving the turning machine in order to perform the two types of machining And advantages of the machining module can be utilized in combination without deteriorating the productivity.

In other words, productivity can be improved by performing the machining on both sides of the roll part, and the post-processing of laser machining can be performed only by rotating the roll part on one stage, thereby simplifying the process and improving the productivity Do.

In addition, since the first and second processing modules are symmetrically disposed on both sides with respect to the roll portion, the overall structural safety of the machine can be improved.

Also, productivity can be improved by performing machining with tools with different distances when turning through turning module, and it is possible to change various tool entry angles during milling with milling module, .

Furthermore, the second machining module includes the proximity sensor portion and the measuring portion, so that the machining pattern of the surface of the roll portion processed by the first machining module can be measured and the position can be aligned, thereby improving the productivity.

Particularly, in the production of a roll mold, in general, when a large-sized roll portion is deformed due to mounting, thermal deformation due to application of heat occurs during processing and deformation in the longitudinal direction of the roll may occur. And since the measuring unit is provided in the tailstock, the amount of change in the longitudinal direction of the roll portion can be measured, and the machining pattern can be more accurately processed in the roll portion.

1 is a perspective view illustrating a complex turning machine according to an embodiment of the present invention.
Fig. 2 is an enlarged perspective view of the first machining module of Fig. 1; Fig.
Fig. 3 is an enlarged perspective view of the second machining module of Fig. 1. Fig.
Fig. 4 is a perspective view showing another example of the first machining module of Fig. 1;
5A and 5B are perspective views showing still another example of the first machining module of FIG.
Fig. 6 is a front view showing the composite turning machine of Fig. 1;
Figs. 7A and 7B are cross-sectional views showing the measurement unit of Fig.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the term "comprises" or "comprising ", etc. is intended to specify that there is a stated feature, figure, step, operation, component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating a complex turning machine according to an embodiment of the present invention.

1, the complex turning machine 10 according to the present embodiment includes a stage unit 100, a spindle spindle 200, a carding spindle 210, a machining module unit 300, and a feed module 400 do.

The stage unit 100 includes a base frame 110, a damping unit 120, a guide rail 130, a main shaft 140, and a tailstock 150.

The base frame 110 constitutes a base body of the complex turning machine 10 and has a rectangular column shape extending in a first direction X as shown in FIG. The base frame 110 may be modified into various shapes other than those shown in FIG. 1, and a processing module unit 300 and a transfer module 400 to be described later are located on the base frame 110.

The damping unit 120 is fixed to the lower portion of the base frame 110 and directly contacts the bottom surface to isolate the base frame 110 from external factors such as vibration of the floor surface. The damping portions 120 may be formed at four corners of the base frame 110, respectively.

The guide rail 130 extends along the first direction X on the upper surface of the base frame 110 and is supported on the guide rail 130 by the conveying module 400 and the tailstock 150, Is guided and conveyed by the guide rails (130).

The main shaft 140 is formed on the upper surface of one end of the base frame 110 and the main shaft spindle 200 is fixed to the main shaft 140.

The main shaft 140 is fixed without being conveyed on the base frame 110 so that the main shaft spindle 200 also rotates in the first direction about the rotation axis at a fixed position.

The card stock 150 is positioned on the upper surface of the other end of the base frame 110 and the card stock spindle 210 is fixed to the tail stock 150.

Unlike the main shaft 140, the tailstock 150 is guided by the guide rails 130 and slides in the first direction on the base frame 110.

In this case, the deep pressure spindle 210 is conveyed in the first direction according to the conveyance of the tail stock 150 and rotates in the first direction about the rotation axis.

The roll part 220 processed by the complex turning machine 10 according to the present embodiment is used as a roll mold after various fine patterns and the like are processed on the surface by the turning machine. As shown in FIG. 1, And has a cylindrical shape extending in the first direction (X).

One end of the roll part 220 is fixed to the spindle 220 and the other end of the roll part 220 is fixed to the spindle 210. Thus, And is rotated on the base frame 110 as the deep pressure portion spindle 210 rotates.

The feed module 400 is slid in the first direction along the guide rails 130 on the guide rails 130 and the machining module unit 300 is mounted on the feed module 400 , The processing module unit 300 can also be transferred in the first direction.

The conveying module 400 includes a conveying frame 410 and a conveying base 420. The conveying frame 410 is mounted on the guide rail 130 to guide the conveying module 410 along the guide rail 130, (Not shown). The transfer base 420 is coupled to the transfer frame 410 and is formed on the upper surface thereof with a guide rail extending along a second direction Y perpendicular to the first direction. Accordingly, the processing module unit 300 is transferred along the guide rail formed on the transfer base 420 along the second direction Y. As shown in FIG.

More specifically, the processing module unit 300 includes a first processing module 500 and a second processing module 600, wherein each of the first and second processing modules 500, (420), and are positioned at both ends of the transfer base (420).

Thus, the roll part 220 extends between the first and second processing modules 500 and 600 and extends in a direction perpendicular to the extending direction of the transfer base 420.

That is, the first and second processing modules 500 and 600 are disposed to face each other with the roll part 220 interposed therebetween. Accordingly, when the surface of the roll part 220 is processed, The opposite surface of the roll part 220 is processed

Since the first and second processing modules 500 and 600 process the different surfaces of the roll unit 220 on both sides with respect to the roll unit 220 as described above, The first and second machining modules 500 and 600 can be formed on the first and second machining modules 500 and 600, Since they are located at both ends of the integrated turning machine 400, the balance of the weight can be distributed and the structural safety of the combined turning machine 10 is improved.

Fig. 2 is an enlarged perspective view of the first machining module of Fig. 1; Fig.

Referring to FIGS. 1 and 2, the first processing module 500 includes a first base module 510, a jig 520, and a machining portion 530.

The first base module 510 is mounted on the transfer base 420 and is slid in the second direction Y along a guide rail formed on the upper surface of the transfer base 420.

The jig 520 is coupled to the upper surface of the first base module 510 so as to be rotatable in a third direction Z perpendicular to the first and second directions at a rotation axis, The rollers 220 can be rotated at various positions by rotating the rollers 220 in the third direction.

The machining portion 530 includes a fixing portion 531 and a tool 532. The fixing portion 531 is fixed on the jig 520 and the tool 532 is fixed to the fixing portion 531. [ Respectively. In this case, the tool 532 may be a turning tool for performing turning.

Fig. 3 is an enlarged perspective view of the second machining module of Fig. 1. Fig.

Referring to FIGS. 1 and 3, the second processing module 600 includes a second base module 610 and a second processing unit 620, and the second base module 610 includes a transfer base 420 along a guide rail formed on the upper surface of the transport base 420 in the second direction Y. [

The second processing unit 620 may be, for example, a laser processing module, and a laser is irradiated to the surface of the roll part 220 to perform processing.

In this case, the second processing unit 620 includes a unit frame 621, a cooling unit 622, a proximity sensor unit 623, a nozzle unit 625, a sensor unit 626, a first measuring unit 627, And a second measurement unit 628.

The unit frame 621 has a laser irradiation unit disposed therein and forms a body of the second processing unit 620 as a whole.

The cooling unit 622 corresponds to a heat dissipating unit for cooling the heat generated by the laser irradiation of the second processing unit 620. The proximity sensor unit 623 includes the nozzle unit 625 And measures whether the roll unit 220 and the nozzle unit 625 are within a predetermined distance so as not to be excessively close to the roll unit 220. The sensor unit 626 may be a capacitive sensor for sensing the focus of the laser beam irradiated through the nozzle unit 625. The first measuring unit 627 may measure the alignment of the second processing module 600, And the quality of a processing pattern processed by the second processing module 600, and the second measuring unit 628 observes the overall processing state by the second processing module 600.

Particularly, in this embodiment, since the second machining module 600 can be aligned by the first measuring portion 627 and the machining pattern by the laser machining can be monitored in real time, When forming a processing pattern, time for separate alignment can be saved, thereby improving productivity.

Fig. 4 is a perspective view showing another example of the first machining module of Fig. 1;

Referring to FIG. 4, in the case of the first processing module 500, the roll portion 220 may be machined by including a plurality of turning tools.

For example, the first processing module 500 is fixed on the jig 520, and the processing part 540, which rotates according to the rotation of the jig 520, is mounted on the first to third mounting parts 541, 542, 543), first to third fixing portions 544, 545, 546 fixed to the first to third mounting portions 541, 542, 543, 548, and 549, respectively, fixed by the rollers < RTI ID = 0.0 > 544, < / RTI &

In this case, the first to third tools 547, 548, and 549 may have different lengths protruding toward the roll part 220. Accordingly, the first to third tools 547, 548, 549 may form processing patterns of different shapes on the roll portion 220. That is, the first tool 547 may protrude further toward the roll 220 by an 'A' length than the second tool 548, and the second tool 548 may protrude from the third tool 549 The length of the roll portion 220 is longer than the length of the roll portion 220. [ After the roughing of the roll 220 is performed by the third tool 549, the roughing of the roll 220 is performed by the second tool 548, The finishing for the roll part 220 may be performed by the finishing rollers 547. [

In this case, the difference in the number of the mounted tools and the protruding length may be variously changed.

5A and 5B are perspective views showing still another example of the first machining module of FIG.

The first processing module 500 may be a milling module in addition to the turning module as described above.

5A and 5B, the machining portion 550 for milling can be coupled onto the jig 520 of the first machining module 500 so that the surface of the roll portion 220 Milling can be done.

In this case, the processing unit 550 may include a vertical mounting portion 551 extending along the third direction Z on the jig 520, a second mounting portion 551 extending along the groove of the vertical mounting portion 551 in the third direction A rotation fixing part 552 slidable along the rotation direction Z and capable of rotating in the first direction X on the rotation axis and a tool fixed by the rotation fixing part 552 and milling the surface of the roll part 220 (553).

Particularly, the rotation fixing portion 552 may be moved in the third direction on the vertical mounting portion 551 to be fixed at an arbitrary position, and may be rotated in the first direction by a rotation axis. Thus, as shown in FIG. 5B, the tool 553 may be positioned to have an arbitrary entry angle with respect to the surface of the roll 220, through which various patterns may be formed through milling.

Fig. 6 is a front view showing the composite turning machine of Fig. 1; Figs. 7A and 7B are cross-sectional views showing the measurement unit of Fig.

6, 7A and 7B, as described above, in the present embodiment, the tailstock 150 is conveyed in the first direction X on the guide rail 130, The carded spindle 210 to which the other end of the carded spindle 220 is fixed may also be transferred along the first direction X. [

When the roll unit 220 is processed through the complex turning machine 10 as in the present embodiment, the roll unit 220 is relatively large in size, and only the two ends along the first direction X The roll unit 220 is deformed along the third direction Z so that the roll unit 220 can be rotated in the first direction X as well The position can be deformed.

Further, heat is transferred to the roll part 220 while the roll part 220 is being machined, so that the roll part 220 is thermally expanded due to thermal deformation in the first direction X, Heat shrinkage may occur in the first direction (X) at the end.

On the other hand, when the length of the roll part 220 changes in the first direction X as described above, accuracy may be a problem especially in the process of forming a fine pattern. Therefore, in this embodiment, the measuring unit 230 is positioned between the carding spindle 210 and the measuring unit 230 to measure a displacement change of the roll unit 220 in the first direction X, By feeding back the measurement result of the displacement change and setting the machining conditions through the machining module 300, the machining accuracy can be improved.

More specifically, the measurement unit 230 includes a cylindrical frame 231 having a cylindrical shape and leading into the inside of the tailstock 150 so as to form an opening 233 through which the carded spindle 210 passes, An extension frame 232 extending in a circumferential direction at one end of the circumferential frame 231 and positioned between the cardiotext spindle 210 and the tailstock 150 and an extension frame 232 interposed between the circumferential frame 231, And an encoder unit 234 for measuring the amount of deformation of the optical fiber 220 in the first direction (X).

In this case, the encoder unit 234 includes a guard unit 235, an electrode unit 236, and a buffer unit 237, and the guard unit 235 is disposed in the circumferential direction of the electrode unit 236 The buffer part 237 covers the electrode part 236 at the outer periphery of the electrode part 236 along the first direction X that is the extension direction of the carded spindle 210 236).

The encoder unit 234 measures the position of the roll unit 220 in the first direction X through the electrode unit 236 having a relatively low thermal expansion coefficient so that the roll unit 220 It is possible to measure the deformation amount deformed in the first direction X through the machining process.

Thus, when the complex machining is performed on the surface of the roll part 220 through the machining module part 300, the accuracy of machining can be improved.

Particularly, since the first machining module is a turning or milling module and the second machining module is a laser machining module, it is troublesome to perform the setup again by changing the machining module or moving the turning machine to perform two types of machining And advantages of the machining module can be utilized in combination without deteriorating the productivity.

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 present invention as defined by the following claims. It can be understood that it is possible.

The composite turning machine according to the present invention has industrial applicability that can be used in the production of a roll mold.

10: Complex turning machine 100:
140: main shaft 150: tailstock
200: spindle spindle 210: pressure spindle
220: roll part 230: measuring unit
234: encoder section 236: electrode section
300: machining module part 400:
500: first processing module 530, 540, 550:
600: second machining module 620: second machining unit

Claims

A stage unit including a base frame having guide rails extending in a first direction, a main shaft disposed at one end of the base frame, and a tailstock located at the other end of the base frame;
A main spindle fixed to the main shaft and fixing and rotating one end of the roll extending in the first direction;
A pressure-receiving spindle fixed to the tailstock and fixing and rotating the other end of the roll; And
A transport module transported in the first direction on the guide rail; And
And a machining module part including first and second machining modules respectively positioned at both ends of a second direction perpendicular to the first direction of the conveying module to form machining patterns on the roll part,
Wherein the first processing module is a turning module or a milling processing module, the second processing module is a laser processing module,
Wherein the first and second processing modules are disposed to face each other to form processing patterns on different surfaces of the roll portion,
And the second machining module includes a measuring portion formed on the roll portion and measuring the machining patterns processed by the first machining module to align the second machining module.

delete

The method according to claim 1,
Wherein the first and second machining modules are transported on the transport module in the second direction.

delete

The method of claim 3,
Wherein when the first machining module is a turning module, the first machining module comprises a plurality of tools spaced a different distance from a surface of the roll portion.

The method of claim 3,
Wherein when the first processing module is a milling processing module, the first processing module includes a rotation fixing part and a tool mounted on the rotation fixing part so that an angle between the tool and the surface of the roll part can be changed Complex turning machine.

4. The apparatus according to claim 3,
A nozzle unit for oscillating the laser; And
Further comprising a proximity sensor unit for sensing a proximity state between the nozzle unit and the roll unit.

The method according to claim 1,
Wherein the trail bearing is transported in the first direction on the guide rail,
Wherein said cardiospress spindle is fixed to said tailstock with a measuring unit measuring the change in length of said roll between said tailstock and said tailstock.

9. The method of claim 8,
Wherein the measuring unit comprises:
A circumferential frame forming an opening through which the carded spindle passes; And
And an encoder part interposed in the circumferential frame and measuring a change in length of the roll part,
Wherein the encoder unit comprises:
An electrode portion;
A guard portion covering the electrode portion in the circumferential direction of the circumferential frame; And
And a cushioning portion covering the electrode portion in an extending direction of the cardiospress spindle.