KR20190021055A - Cover apparatus of vertical type machine tool - Google Patents

Abstract

Provided is a cover device of a vertical type machine tool. The cover device of a vertical type machine tool includes: a machining unit for machining a workpiece mounted on a chuck; a ram head unit mounted to be moved in a horizontal direction or in a vertical direction; a sliding door unit mounted on a cross rail; and cover units mounted at both sides of the ram head unit to be opposite to each other in a horizontal direction. The sliding door unit opens the central portion of the chuck when a workpiece is seated on the chuck of the machining unit or is removed from the chuck during unmachining, or seals the upper portion of the machining unit while the ram head unit moves in the vertical direction during machining. The cover unit perfectly blocks cutting oil and chips from being scattered from the machining unit while avoiding shafting interference for horizontal movement and vertical movement of the ram head unit since sealing the upper portion of the machining unit during horizontal movement of the ram head unit during machining, and moves in the horizontal direction and in the vertical direction in a state where the machining unit is perfectly opened so as to easily set the workpiece on the machining unit before machining. Therefore, the cover device of a vertical type machine tool can remarkably reduce manufacturing costs, is easy to install, maintain and move, and can promote miniaturization of tools.

Description

Technical Field [0001] The present invention relates to a cover apparatus for a vertical type machine tool,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover device for a vertical type machine tool, and more particularly, to a cover device for a vertical type machine tool which prevents a chip or a cutting oil from being scattered during processing of a vertical type machine tool, To a cover device of a machine.

In general, a machine tool refers to a machine that is used for machining a metal / non-metal workpiece with various tools or non-cutting machining methods to a desired shape and dimensions using a suitable tool.

A wide range of machine tools, including turning centers, vertical and horizontal machining centers, door type machining centers, Swiss turn, electric discharge machines, horizontal NC boring machines and CNC lathes, are widely used in various industrial fields for their specific applications.

Various types of machine tools currently in use generally have operation panels to which numerical control (NC) or computerized numerical control (CNC) technology is applied. Such an operator panel has various function switches or buttons and a monitor.

The machine tool includes a table on which a material as a workpiece is seated and which is transferred for machining a workpiece, a pallet for preparing a workpiece before machining, a spindle for rotating a tool or a workpiece combined therewith, And the like. In a machine tool, a table, a tool stand, a spindle, a tailstock, a sprinkler, and the like are provided with a transfer unit for transferring along the transfer axis to perform various processes.

Such a machine tool can be divided into a horizontal type machine tool and a vertical type machine tool depending on the arrangement direction of the main axis. In the horizontal machine tool, the rotation center axis of the main shaft is arranged at a right angle to the gravity direction, and the vertical machine tool is arranged so that the rotation center axis of the main shaft coincides with the gravity direction.

In general, a machine tool is used to supply a cutting oil in machining a workpiece using a tool to prevent thermal deformation of the workpiece and the tool due to frictional heat. Chips are generated in the workpiece during machining.

Therefore, in general, the machine tool is provided with various cover devices for protecting the cutting oil scattering during machining in the machining area and various peripheral devices and workers installed in the machining area from the chip.

As shown in FIG. 1, in the conventional vertical type machine tool cover apparatus, in particular, a vertical type machine tool, a large vertical rack 1 can easily move horizontally for smooth movement of the ram head 2 and vertical movement for setting a workpiece The cover 3 and the door 5 have a structure in which the cover 5 covers the entire area of the machine tool to cover half the position of the machine tool, The maintenance cost of the machine tool is increased due to contamination of the surrounding environment of the machine tool by cutting oil or chips scattered through the upper opening 5 during machining in the machining area and damage of peripheral devices by cutting oil or chips There is a problem that the operator is exposed to the risk and the productivity is decreased.

In order to solve such a problem, as shown in FIG. 2, a cover device of a conventional vertical machine tool, in particular, a vertical machine tool 1 in particular, has a cover 3 having a structure covering the entire machine tool, It is possible to prevent the cutting oil or chip from scattering by removing the opening portion as shown in Fig.

However, as shown in FIG. 2, in the case of the large vertical shelf 1, the height is about 6 meters, which causes a restriction on the installation space and transportation, and due to the enlargement of the equipment, As the manufacturing cost of the cover device of the vertical type machine tool increases from three times to five times that of the conventional one, the overall production cost of the machine tool ultimately rises and the marketability and export decrease, the space utilization becomes extremely low, It is impossible to observe the machine tool at a time, resulting in a safety problem.

Korean Patent Laid-Open Publication No. 10-2015-0088578 Korean Patent Laid-Open Publication No. 10-2011-0067523

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a machining method and a machining method for machining a workpiece, The work can be moved horizontally and vertically in a fully opened state so that the workpiece can be easily set before machining in the machining part, and the manufacturing cost can be significantly reduced, And to provide a cover device for a vertical machine tool capable of ensuring ease of movement and miniaturization of equipment.

In order to accomplish the object of the present invention, a cover device for a vertical machine tool according to the present invention comprises: a machining unit for machining a workpiece mounted on a chuck in a machining portion; A ram head unit movably installed in a horizontal direction or a vertical direction; A sliding door unit installed on the cross rail; And a cover unit disposed on both sides of the RAM head unit so as to face each other in the horizontal direction.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the sliding door unit of the cover device of the vertical machine tool is provided with an upper portion of the machining portion which is closed during vertical movement of the ram head unit, And the cover unit can seal the upper portion of the processing portion during horizontal movement of the ram head unit during processing.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the sliding door unit of the cover device of the vertical machine tool has a function of preventing the chuck of the chuck The central portion can be opened.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, a cover device of a vertical machine tool is arranged so that a horizontal direction of the cover unit is formed at one side of the cover unit so as to supply oil to the cover unit And an oil supply unit installed along the oil supply unit.

In another preferred embodiment of the cover device for vertical machine tools according to the present invention, the sliding door unit of the cover device of the vertical machine tool comprises a frame part; A sliding fixing part fixedly installed on a part of the frame part; A sliding door portion connected to the sliding fixing portion so as to be movable in a horizontal direction to open a central portion of the chuck at a time of non-disclosure; A shielding part spaced apart from the frame part and provided adjacent to one end of the sliding door part to support the sliding door part; And a power supply part installed at a part of the frame part to supply a driving force for opening and closing the sliding door part.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the height of the sliding door portion of the cover device of the vertical machine tool and the height of the sliding fixing portion are adjusted And may be formed to be larger than a vertical movement stroke of the ram head unit to seal the upper portion of the processing portion during movement.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the frame portion of the sliding door unit of the cover device of the vertical machine tool comprises a base frame ; And a fixed frame extending in a predetermined horizontal direction and a width direction on one side of the base frame to support the base frame.

In another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the cover unit of the cover device of the vertical machine tool is attached to one side of the fixed frame and the other side thereof is fixed to one side A first cover portion coupled to the first cover portion; And a second cover part having one side coupled to the shield and the other side coupled to the other side of the coupling part of the RAM head unit.

Further, in another preferred embodiment of the cover device for a vertical machine tool according to the present invention, the shielding portion of the sliding door unit of the cover device of the vertical machine tool is provided so as to support a vertical load in a state in which the sliding door portion is closed A first support portion provided on an upper portion of the shielding portion; And a second support portion provided at a lower portion of the shielding portion to support a vertical load when the sliding door portion is closed.

The cover device of the vertical machine tool according to the present invention opens the central portion of the chuck when the sliding door unit seats or removes the workpiece to or from the chuck of the machining portion during non-dispensing, and during the vertical movement of the ram head unit during machining, The upper part is completely closed and the cover unit completely blocks the upper part of the machining part during the horizontal movement of the ram head unit during machining to completely prevent cutting oil and chips from being scattered to the upper part of the machining part while avoiding axial interference The safety of the user is ensured, and the working environment can be remarkably improved.

In addition, the cover device of the vertical machine tool according to the present invention is characterized in that, in order to easily set the workpiece to the machining portion while avoiding interference between the axes for horizontal and vertical movements of the RAM head unit, The manufacturing cost can be reduced to 1/5 or less as compared with the conventional method, so that the production cost of the entire vertical type machine tool can be reduced and the export can be increased.

Further, the cover device of the vertical type machine tool according to the present invention has the effect of maximizing the satisfaction of the customer and reducing the installation cost and the maintenance cost by securing the ease of installation, maintenance and mobility through miniaturization.

Further, the cover device of the vertical type machine tool according to the present invention can reduce the maintenance, installation, and movement time, and can easily seat or remove the workpiece in the machining part, thereby improving the productivity and reducing the manufacturing cost of the machine tool There is an effect that can be.

1 is a perspective view of a cover device of a vertical type machine tool according to a conventional example.
2 is a perspective view of a cover device of a vertical type machine tool according to another embodiment of the present invention.
3 is a perspective view of a vertical type machine tool equipped with a cover device of a vertical machine tool according to an embodiment of the present invention.
4 is a perspective view for explaining a vertical movement of a vertical machine tool equipped with a cover device of a vertical machine tool according to an embodiment of the present invention.
5 and 6 are plan views for explaining a horizontal movement of a vertical type machine tool equipped with a cover device of a vertical type machine tool according to an embodiment of the present invention.
7 and 8 are a plan view for explaining a state in which a machined portion is hermetically sealed by a sliding door unit and a cover unit at the time of machining a vertical type machine tool equipped with a cover device of a vertical machine tool according to an embodiment of the present invention Front view.
9 and 10 are a plan view and a front view for explaining a state in which a central portion of a machining portion and a chuck are opened in a non-disclosure of a vertical type machine tool equipped with a cover device of a vertical type machine tool according to an embodiment of the present invention.
11 is a perspective view of a cover device of a vertical type machine tool in a state where a ram head unit is removed according to an embodiment of the present invention.
Fig. 12 is a plan view of the cover device of the machine tool in a state where the ram head unit of Fig. 11 is removed.
13 is a sectional view taken along the line AA in Fig.
Fig. 14 is a sectional view taken along line BB in Fig.
15 is a sectional view taken along the line CC in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings of a prefabricated pillow. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the size and thickness of an apparatus may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. However, it should be understood that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of the layers and regions in the figures may be exaggerated for clarity of illustration.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprise "and / or" comprising ", as used in the specification, means that the presence of stated elements, Or additions.

FIG. 3 is a perspective view of a vertical type machine tool equipped with a cover device of a vertical type machine tool according to an embodiment of the present invention, FIG. 4 is a perspective view of a vertical type machine tool according to an embodiment of the present invention, FIGS. 5 and 6 illustrate a horizontal movement of a vertical machine tool equipped with a cover device of a vertical machine tool according to an embodiment of the present invention. FIG. Fig. 7 and 8 are a plan view for explaining a state in which a machined portion is hermetically sealed by a sliding door unit and a cover unit at the time of machining a vertical type machine tool equipped with a cover device of a vertical machine tool according to an embodiment of the present invention 9 and 10 are a plan view for explaining a state in which the central portion of the machining portion and the chuck are opened in the non-disclosure of the vertical type machine tool equipped with the cover device of the vertical machine tool according to the embodiment of the present invention, 11 is a perspective view of a cover device of a vertical type machine tool in a state in which a ram head unit is removed according to an embodiment of the present invention. Fig. 12 is a plan view of the cover device of the machine tool in a state where the ram head unit of Fig. 11 is removed. Fig. 13 is a cross-sectional view taken along line A-A in Fig. 12, Fig. 14 is a cross-sectional view taken along line B-B in Fig. 12, and Fig. 15 is a cross-sectional view taken along line C-C in Fig.

The definitions of terms used below are as follows. 1 to 15, "vertical direction" means a direction orthogonal to the horizontal direction and a height direction in the same member, that is, Z in Figs. 1 to 15 Quot; width direction "means orthogonal to the horizontal direction and the vertical direction, and the vertical direction in the same member, that is, the Y-axis direction in Figs.

3 to 15, a cover device 10 for a vertical machine tool according to an embodiment of the present invention will be described. 3 to 11, a cover device 10 of a vertical machine tool according to an embodiment of the present invention includes a processing unit 100, a ram head unit 200, a sliding door unit 300, Unit 400 as shown in FIG.

The machining unit 100 processes the workpiece 14 mounted on the chuck 120 in the machining unit 110. When the workpiece is machined by the machining unit 110 of the machining unit 100, cutting oil is supplied to prevent thermal deformation of the workpiece and the tool due to frictional heat. Chips are generated in the workpiece during machining in the machining portion. Although not shown in the drawing, the processing unit includes a table on which the chuck 120 is installed and a bed on which the table is installed. Further, a transfer unit for rotating or transferring a table or the like is provided. Further, the processing unit 100 may be provided with an automatic tool changer (ATC) to perform various machining operations and improve productivity.

The RAM head unit 200 is movably installed in the horizontal direction X or the vertical direction Z. [ The attachment can be mounted on the tip of the RAM head unit 200 as required. Various tools may be mounted at the tip of each attachment.

The sliding door unit 300 is installed on the cross rail 13.

The cover unit 400 is horizontally opposed to both sides of the ram head unit 300.

9 and 10, the sliding door unit 300 includes a workpiece 14 unprocessed on the chuck 120 of the machining unit 110 in the machining unit 110 of the machining unit 100, The central portion 121 of the chuck is opened when the workpiece 14 on which the machining operation is completed or the workpiece 14 on which the machining operation is completed is opened and the sliding door unit 300, Thereby completely sealing the upper portion of the processing portion 110 of the processing unit 100 during vertical movement.

5 and 6, the cover unit 400 is provided to cover the upper portion of the processing portion 110 during horizontal movement of the ram head unit 200 at the processing portion 1100 of the processing unit 100 It is completely sealed.

Therefore, the cover device 10 of the vertical type machine tool according to the present invention is capable of preventing vertical movement of the ram head unit 200 by the sliding door unit 300 and preventing shafting interference during workpiece setting operation, It is possible to perfectly prevent the scattering of the cutting oil and the chip to the upper portion of the machining portion while avoiding the stagger interference when the RAM head unit 200 moves horizontally by the cover unit 400. [ Thereby improving the safety of the user, significantly improving the working environment, and reducing the manufacturing cost to 1/5 or less than the conventional cover device shown in FIG. 2, thereby increasing sales and export and increasing the satisfaction of consumers.

11 to 15, the cover device 10 of the vertical machine tool according to another embodiment of the present invention may further include an oil supply unit 500. [

The oil supply unit 500 can smoothly move the cover unit 400 according to the horizontal movement of the ram head unit 200 as the oil is supplied to the cover unit 400 and is recovered and circulated while being filtered, The unit 400 is prevented from being damaged or damaged, and the maintenance cost can be reduced through the oil circulation.

3 to 15, the sliding door unit 300 of the cover device 10 of the vertical type machine tool according to an embodiment of the present invention includes a frame part 310, a sliding fixing part 320, A door portion 330, a shielding portion 340, and a power supply portion 350.

The frame part 310 provides a space in which a sliding fixing part 320 and a sliding door part 330 to be described later can be installed and provides an appearance that can be installed in the cross rail 13 to the cover device 10 . Although not limited thereto, the frame part 310 may be formed in the form of a metal frame or a metal bar.

11 to 15, the frame part 310 of the sliding door unit 300 of the cover device 10 of the vertical machine tool according to the embodiment of the present invention includes a base frame 311 and a fixed frame (312).

The base frame 311 is formed to extend along the horizontal direction with a predetermined length and width so that the sliding fixing portion 320 is engaged. The sliding fixing portion 320 is coupled to the base frame 311.

Although not limited thereto, the base frame 311 may include a horizontal frame (not shown) which is spaced apart from the base frame 311 by a predetermined distance to support the load of the sliding fixing part 320 and the sliding door part 330 and maintain durability and light weight, And a rectangular frame having a substantially lattice shape by a vertical frame.

The fixed frame 312 supports the base frame 311 and has a predetermined horizontal direction and a predetermined horizontal direction on one side of the base frame 311 for easily coupling the cover device 10 of the vertical machine tool to the cross rail 13. [ And extend in the width direction.

Although not limited thereto, the fixed frame 312 may support the loads of the sliding fixing part 320 and the sliding door part 330 and may be spaced apart from each other by a predetermined distance in order to maintain the durability and increase the ease of installation of the cross rail And may be formed in a substantially hexahedral shape by a horizontal frame and a vertical frame which are coupled together.

Although not shown in the drawings, the base frame 311 and the fixed frame 312 may have ribs that are parallel, diagonal, or radial to the horizontal or vertical frame between the horizontal frame and the vertical frame to increase durability and lighten Can be installed.

In addition, although not shown in the drawings, the base frame 311 and the vertical frame 312 may be provided with a blocking portion along the vertical frame and the horizontal frame to more thoroughly block scattering of cutting oil or chips.

The sliding fixing part 320 is fixed to a part of the frame part 310. Specifically, the sliding fixing unit 320 is fixed to the base frame 311 of the frame unit 310, which will be described later.

The sliding door portion 330 is connected to the sliding fixing portion 320 so as to be movable in the horizontal direction so as to open the central portion 121 of the chuck at the time of non-dispensing.

The shielding portion 340 is spaced apart from the frame portion 310 by a predetermined distance in the horizontal direction and is provided adjacent to one side of the sliding door portion 330 to prevent the sliding door portion 330 from being opened when the sliding door portion 330 is closed. .

That is, the shielding part 340 is formed in the base frame 311 of the frame part 310 so as to be in contact with one end of the sliding door part 330 in a state in which the sliding door part 330 is closed during processing, And supports a load of the sliding door portion 330. The sliding door portion 330 is supported by the fixed frame 312 in a direction perpendicular to the fixed frame 312, 11, the shielding portion 340 is provided on one side of the shielding portion 340 to more precisely shield cutting oil or chips from scattering when the workpiece 110 is machined by the machining portion 110 of the machining unit 100 And a blocking portion to be installed.

The shielding portion 340 supports the load of the sliding door portion 330 and maintains durability. The shielding portion 340 increases the ease of installation of the cross rail, And may be formed in a rectangular shape by a horizontal frame and a vertical frame which are coupled with each other while being spaced apart from each other.

Further, although not shown in the drawings, the shielding portion 340 is provided between the horizontal frame and the vertical frame in parallel with the horizontal frame or the vertical frame or diagonally opposite the vertical frame to increase the durability, firmly support the load of the sliding door portion, Or a rib may be radially installed.

11 and 13, the shielding portion 340 of the sliding door unit 300 of the cover device 10 of the vertical machine tool according to another embodiment of the present invention includes a first support portion 341 And a second support portion 342.

The first support portion 341 is installed at the upper portion of the shielding portion to support a vertical load of the sliding door portion in a state where the sliding door portion 330 is closed by the power supply portion 350 described later at the time of processing.

The second support portion 342 is installed at a lower portion of the shielding portion to support a vertical load of the sliding door portion in a state in which the sliding door portion 330 is closed by the power supply portion 350 described later at the time of processing.

As described above, the cover device of the vertical type machine tool according to the present invention has a compact structure that can firmly support the sliding door portion in a state where the sliding door portion is closed, thereby securing the ease of installation, maintenance, The satisfaction of the user can be maximized, and the installation cost and the maintenance cost can be reduced.

The power supply unit 350 is installed in a part of the frame unit 310 and supplies a driving force for opening / closing the sliding door unit 330. The power supply unit 350 may be installed in the base frame 311, though not necessarily limited thereto.

The power supply unit 350 may be formed of a hydraulic cylinder, a pneumatic cylinder, a rack pinion, a ball screw, an LM guide, or the like so as to open / close the sliding door unit 330 through the horizontal movement of the sliding door unit 330 And supplies the driving force.

As described above, the cover device of the vertical type machine tool according to the present invention is characterized in that the machining part is completely opened so that the workpiece can be easily set in the machining part while avoiding interference between the axes for horizontal and vertical movements of the RAM head unit As the transfer is possible, the manufacturing cost is reduced to 1/5 or less as compared with the conventional one, so that the manufacturing cost of the vertical type machine tool is reduced to increase the export, and the maintenance, installation, It can be seated or removed, thereby improving the productivity and increasing the reliability.

3 and 4, in order to completely seal the upper portion of the machining portion 110 of the machining unit 100 during vertical movement of the ram head unit 200 at the time of machining, the sliding door unit 300, The height H of the sliding door portion and the height h of the sliding fixing portion are formed to be larger than the vertical movement stroke of the RAM head unit 200. [

Accordingly, even when the ram head unit 200 is transferred to a certain position in the vertical direction transfer at the time of machining, the upper portion of the machining portion 110 of the machining unit 100 is completely closed to prevent the cutting oil or chip from being scattered .

The height H of the sliding door unit and the height h of the sliding door unit 300 of the cover device 10 of the vertical machine tool according to the preferred embodiment of the present invention are not necessarily limited thereto, Are formed in the same manner. Accordingly, it is possible to increase the assembly and production convenience while minimizing the manufacturing cost required, realize smooth opening and closing operations, and completely seal the upper portion of the processing unit 110 of the processing unit 100 at the time of processing.

5 to 7, 9, 11 to 12, and 15, a cover unit 400 of a cover device 10 of a vertical machine tool according to an embodiment of the present invention includes a first cover (410) and a second cover part (420).

One side of the first cover part 410 is coupled to the right side of the fixing frame 312 and the other side of the first cover part 410 is coupled to the left side of one side of the coupling part 210 of the RAM head unit 200 Respectively. The first cover portion 410 completely seals the upper portion of the processing portion 110 of the processing unit 100 when the RAM head unit 200 moves horizontally to the left.

One side of the second cover part 420 is coupled to the left side of the shielding part 340 and the other side of the second cover part 420 is coupled to the right side of the other side of the coupling part 210 of the RAM head unit 200 Respectively. The second cover portion 420 completely seals the upper portion of the processing portion 110 of the processing unit 100 when the RAM head unit 200 moves to the right in the horizontal direction.

The first cover part 410 and the second cover part 420 are provided on both sides of the coupling part 210 of the RAM head unit 200 so as to face each other such that the RAM head unit 200 is horizontal The machining portion 110 of the machining unit 100 completely closes the upper portion of the machining unit 100 to prevent the cutting oil or chips from being scattered to the upper portion of the machining portion 110. [

The positions of the first cover part 410 and the second cover part 420 and the positions of the sliding door part 330 and the sliding fixing part 320 and the positions of the frame part 300 and the blocking part 340 But the present invention is not limited thereto.

3 to 15, the structure and operation principle of the cover device 10 for a vertical machine tool according to an embodiment of the present invention will be described.

3 and 4, the cover device 10 of the vertical machine tool is capable of freely transferring the ram head unit 200 in the vertical direction at the time of machining and at the time of vertical transfer of the ram head unit 200 The sliding door unit 300 is installed on the cross rail 14 in order to completely block the upper portion of the processing unit 110.

14, the sliding door portion 330 of the sliding door unit 300 of the cover device 10 of the vertical machine tool includes a connecting portion 331 and a connecting portion 332. [ The connection portion 331 is provided at the tip of the sliding door portion 330 and moves in the horizontal direction along the rail portion 360 of the sliding fixing portion 320. That is, when the sliding door portion 330 is moved in the horizontal direction by the driving force of the power supply portion 350, the connecting portion 331 is opened or closed while the sliding door portion 330 is provided at the front end, Along with the third bearing portion 391 along the rail portion 360 of the sliding door portion 320 to support the load of the sliding door portion 330.

As shown in FIG. 14, the sliding fixing part 320 and the sliding door part 330 are staggeredly fixed to each other by the rail part 360, and are positioned at the upper and lower ends to realize stable driving. Such rails 360 may be formed from brass rails, though not necessarily limited thereto.

As shown in Figs. 5 to 6, 11 to 12, and 15, the cover device 10 of the vertical machine tool is capable of freely transferring the ram head unit 200 in the horizontal direction at the time of machining, A cover unit 400 is installed on both sides of the RAM head unit 200 so as to face each other in order to completely block the upper part of the processing unit 110 during horizontal movement of the head unit 200.

14 and 15, the cover unit 400 is provided with a first cover part 410 on the right side of the coupling part 210 of the RAM head unit 200, and a RAM head unit 200 The second cover part 420 is provided on the left side of the fastening part 210 of the second cover part 420. [ The first cover part 410 and the second cover part 420 both include a bellows cover 431, a plate part 432 for supporting the bellows cover 431, an induction part 433, and a bracket part 434.

The plate portion 432 is inserted and installed to support the guide portion 510 of the oil supply unit 500.

The first cover part 410 and the second cover part 420 are provided with the plate part 432 on the bellows cover 431 and the guide part 433 is provided on the guide part 510 of the oil supply unit 500, And the upper surface.

The support portion 434 is supported by the engaging portion 332 coupled to the sliding door portion 330 so that the ram head unit 200 moves in conjunction with movement of the ram head unit 200 in the horizontal direction.

The sliding door unit 300 and the cover unit 400 can freely move the ram head unit 200 in the vertical direction or in the horizontal direction at the time of machining and allow the cutting oil and chip to be scattered to the upper portion of the machining portion 110. [ The manufacturing cost can be remarkably reduced.

The machined workpiece 14 placed on the chuck 120 of the machining unit 110 of the machining unit 100 may be removed or the machined workpiece 14 may be mounted on the chuck 120 The center portion 121 of the chuck must be opened to seat the unprocessed workpiece 14 on the workpiece. That is, if the central portion 121 of the chuck is not opened as shown in FIGS. 7 to 8, the workpiece can not be set through the crane at the time of non-disclosure, resulting in reduced productivity and a safety accident.

9 and 10, in the cover device 10 of the vertical type machine tool according to the present invention, when the sliding door portion 330 is opened by the driving force of the power transmitting portion 350 in the non- The central portion 121 of the chuck 120 of the processing portion 110 is opened.

 10, the central portion 121 of the chuck is opened by opening of the sliding door portion 330 of the sliding door unit 300 at the time of non-disclosure, and the machining process placed on the chuck 120 by the crane 13 The unfinished workpiece 14 can be removed or the unfinished workpiece 14 can be easily placed on the chuck 120 to maximize the user's convenience and prevent personnel accidents, It is possible to maximize the productivity by reducing the non-machining time. That is, the sliding door unit 300 is opened by the driving force of the power transmission unit 350 only when the sliding door unit 330 sets the workpiece in the non-display state.

13, the first supporting portion 341 of the shielding portion 340 of the sliding door unit 300 includes a sliding fixing portion 320 fixed to the base frame 311 of the frame portion 310, When the sliding door portion 330 which is supported by the sliding fixing portion 320 in a cantilevered manner and is slidably opened and closed by the driving force of the power transmission portion 350 is closed, the gravity load of the sliding door portion 330 . That is, the first supporting portion 3410 performs an operation while making a line contact with the duct portion 370 by the first bearing portion 380 provided on a part of the first supporting portion 341, The load is primarily supported firmly.

The second support portion 342 is connected to the upper surface of the guide portion 510 which is horizontally extended to a part of the oil supply unit 500 by a second bearing portion 390 provided on a part of the second support portion 342, So that the load of the sliding door unit 330 is securely supported in the secondary direction. A plate portion 432 of the cover unit 400 is installed at a lower portion of the oil supply unit 500.

As described above, the first support portion 341 and the second support portion 342 are formed in a cantilever shape by supporting the load of the sliding door portion 330. However, the durability of the first and second support portions 341 and 342 can be improved.

The first, second, and third bearing portions 380, 390, and 391 may be formed of a cam follower, though not necessarily limited thereto.

15, the second cover portion 420 is provided with a sliding door portion 330 (not shown) for opening the central portion 121 of the chuck to remove the workpiece processed in the non- The ram head unit 200 moves in the left horizontal direction which is the origin of the machine tool and stops while the second cover part 420 is fixed. At this time, the sliding door part 330 is opened, And is transported while being opened.

The second cover part 420 has a shape in which the sliding door part 330 is fixed while the sliding door part 330 is open at the time of processing and the ram head unit 200 is horizontally And has a variable structure that operates in the form of being transported while being transported.

Therefore, in the cover device of the vertical machine tool according to the present invention, the sliding door unit opens the central portion of the chuck when the workpiece is seated on or removed from the chuck of the processing portion during the non-dispensing, The upper portion of the machining portion is completely closed and the cover unit completely seals the upper portion of the machining portion during the horizontal movement of the ram head unit during machining to completely prevent the cutting oil and the chip from being scattered to the upper portion of the machining portion while avoiding the cha- The manufacturing cost can be reduced to 1/5 or less, and the convenience of transportation, assembly, and maintenance can be maximized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: machine tool, 2: ram head,
3: cover, 4: door,
5: open,
10: cover device, 11: machine tool,
12: cross rail, 13: crane,
14: workpiece, 100: machining unit,
110: machining part, 120: chuck,
121: center, 200: ram head unit,
210: fastening portion, 300: sliding door unit,
310: frame part, 311: base frame,
312: fixed frame, 320: sliding fixing part,
330: sliding door portion, 331: connecting portion,
332: coupling portion, 340: shielding portion,
341: first support portion, 342: second support portion,
350: power supply part, 360: rail part,
370: duct portion, 380: first bearing portion,
390: second bearing portion, 391: third bearing portion,
400: cover unit,
410: first cover part, 420: second cover part,
431: bellows cover, 432: plate portion
433: guide portion, 434: bracket portion,
500: oil supply unit, 510: guide portion,
H: height of the sliding door portion, h: height of the sliding fixing portion.

Claims (9)

A machining unit for machining the workpiece mounted on the chuck in the machining portion;
A ram head unit movably installed in a horizontal direction or a vertical direction;
A sliding door unit installed on the cross rail; And
And a cover unit installed on both sides of the RAM head unit so as to face each other in the horizontal direction.
The method according to claim 1,
Wherein the sliding door unit seals the upper portion of the machining portion during vertical movement of the ram head unit during machining,
Wherein the cover unit seals the upper portion of the machining portion during horizontal movement of the ram head unit during machining.
The method according to claim 1,
Wherein the sliding door unit opens the central portion of the chuck when the workpiece is placed on or removed from the chuck of the machining portion at the time of non-disclosure. The method according to claim 2 or 3,
And an oil supply unit installed on one side of the cover unit along the horizontal direction of the cover unit to supply oil to the cover unit.
The method according to claim 2 or 3,
The sliding door unit includes:
A frame part;
A sliding fixing part fixedly installed on a part of the frame part;
A sliding door portion connected to the sliding fixing portion so as to be movable in a horizontal direction to open a central portion of the chuck at a time of non-disclosure;
A shielding part spaced apart from the frame part and provided adjacent to one end of the sliding door part to support the sliding door part; And
And a power supply unit installed at a part of the frame unit to supply a driving force for opening and closing the sliding door unit.
6. The method of claim 5,
The height of the sliding door portion and the height of the sliding fixing portion are formed to be larger than the vertical moving stroke of the RAM head unit to seal the upper portion of the processing portion during vertical movement of the RAM head unit during processing. A cover device for a vertical machine tool.
6. The method of claim 5,
Wherein the frame portion of the sliding door unit comprises:
A base frame extending along the horizontal direction so as to engage with the slide fastener; And
And a fixing frame extending in a predetermined horizontal direction and a width direction on one side of the base frame to support the base frame.
8. The method of claim 7,
The cover unit includes:
A first cover part having one side coupled to the fixed frame and the other side coupled to one side of the coupling part of the RAM head unit; And
And a second cover part having one side coupled to the shield and the other side coupled to the other side of the coupling part of the RAM head unit.
8. The method of claim 7,
Wherein the shielding portion of the sliding door unit comprises:
A first support portion provided on an upper portion of the shield to support a vertical load when the sliding door is closed; And
And a second support portion provided below the shield to support a vertical load when the sliding door is closed.

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