KR102532214B1 - Cover apparatus of machine tool - Google Patents

Abstract

The present invention is a frame portion; A ram head unit installed to be movable in the X-axis direction, Y-axis direction, or Z-axis direction; a first cover portion installed between the frame portion and the ram head portion to be contractible and expandable in the Y-axis direction; a fixing unit installed on the frame unit; a connection part installed in the first cover part; And a clamping part for selectively clamping the fixing part or the connection part; can include, reducing the opening and closing operation time of the cover and enabling smooth setting of the workpiece, thereby reducing the productivity of the machine tool according to the reduction of non-processing time It is about a cover device for a machine tool that can maximize

Description

Cover apparatus of machine tool {Cover apparatus of machine tool}

The present invention relates to a cover device for a machine tool, and more particularly, to a cover device for a machine tool that prevents chips or cutting oil from scattering during processing of the machine tool and facilitates installation or removal of a workpiece before processing during non-processing. will be.

In general, a machine tool refers to a machine used for the purpose of processing a metal/non-metal workpiece into a desired shape and dimension using an appropriate tool by various cutting processing methods or non-cutting processing methods.

Various types of machine tools, including turning centers, vertical/horizontal machining centers, door type machining centers, Swiss turns, electrical discharge machines, horizontal NC boring machines, and CNC lathes, are widely used in various industrial fields to suit the purpose of the work.

In general, various types of machine tools currently in use have a control panel to which numerical control (NC) or computerized numerical control (CNC) technology is applied. Such a control panel has various function switches or buttons and a monitor.

In addition, the machine tool has a table on which the material, which is a workpiece, is seated and transported for processing, a pallet for preparing the workpiece before processing, a spindle that rotates with a tool or workpiece combined, a tailstock for supporting the workpiece, etc. provide etc. In a machine tool, a table, a tool post, a spindle, a tail stock, a resting ball, etc. have a feed unit that feeds along a feed axis to perform various machining operations.

These machine tools can be divided into horizontal type machine tools and vertical type machine tools according to the arrangement direction of the main shaft. In horizontal machine tools, the central axis of rotation of the main shaft is arranged perpendicular to the direction of gravity, and in vertical machine tools, the central axis of rotation of the main shaft coincides with the direction of gravity.

In general, a machine tool prevents thermal deformation of a workpiece and a tool due to frictional heat by supplying cutting oil when processing a workpiece using a tool. Chips are generated in the workpiece during machining.

Therefore, in general, various cover devices are installed in machine tools to protect various peripheral devices and operators installed in a non-machining area from cutting oil and chips scattered during processing in a machining area.

In the case of the cover device of a conventional machine tool, especially the Y-axis cover device of a 5-axis machine, it takes a lot of time to open and close the Y-axis cover, and there is a problem in that the cost increases as a separate device needs to be installed to drive the operation. .

The cover device of a conventional machine tool prevents chips or cutting oil from scattering during processing, and cannot completely remove the cover of a machine tool to set a workpiece in a chuck, which is a processing space, or to move a processed workpiece during non-processing. There is a problem in that the time is increased, the productivity is reduced, and the operator's inconvenience is caused.

Moreover, since a lot of time and equipment are used to completely open the cover device of the machine tool during non-processing, the cover device of the conventional machine tool cannot be miniaturized, and space utilization is poor due to installation space and transportation restrictions. It is extremely low, and there was a problem that threatens the safety of workers.

Korean Patent Publication No. 10-2016-0068173 Republic of Korea Patent Registration No. 10-0707375

The present invention is to solve the above problems, and an object of the present invention is to completely block the scattering of chips or cutting oil by clamping the clamping part with the fixing part and the connecting part to close the upper part of the machine tool during processing, During non-processing, it is unclamped with the fixing part and clamped with the connection part to completely open the upper part of the machine tool so that the workpiece can be easily set on the processing part before processing, reducing the opening and closing operation time of the cover to improve the performance of the machine tool. Productivity is improved, reliability and safety of machine tools are increased by stably performing repeated opening and closing operations, space utilization is maximized through miniaturization by eliminating unnecessary configurations, and safety accidents of workers are prevented in advance. It is to provide a cover device for a machine tool.

In order to achieve the object of the present invention, a cover device for a machine tool according to the present invention includes a frame portion; A ram head unit installed to be movable in the X-axis direction, Y-axis direction, or Z-axis direction; a first cover portion installed between the frame portion and the ram head portion to be contractible or expandable in the Y-axis direction; a fixing unit installed on the frame unit; a connection part installed in the first cover part; and a clamping part for selectively clamping the fixing part or the connection part.

In addition, in the cover device of the machine tool according to the present invention, in another preferred embodiment, the clamping portion of the cover device of the machine tool is clamped with the fixing portion and the connecting portion to close the upper portion during processing, and the upper portion during non-processing. It can be unclamped with the fixing part to open and clamped with the connecting part.

In addition, in another preferred embodiment of the cover device for a machine tool according to the present invention, the clamping portion of the cover device for a machine tool includes a body portion; a rod unit installed through the body unit so as to be capable of linear reciprocating movement around the body unit; a fixing guide block extending from one side of the main body portion and guiding the rod portion when coupled with the fixing portion; and a connection guide block extending to the other side of the main body portion so as to be staggered while facing the fixed guide block and guiding the rod portion when coupled with the connection portion.

In addition, in another preferred embodiment of the cover device for a machine tool according to the present invention, the fixing portion of the cover device for the machine tool may include a fixing groove formed through the fixing portion so that the fixing insertion portion of the rod portion is inserted. .

In addition, in another preferred embodiment of the cover device for a machine tool according to the present invention, the connection portion of the cover device for a machine tool may include a connection groove formed through the connection portion so that the connection insertion portion of the rod portion is inserted.

In addition, in another preferred embodiment of the cover device for a machine tool according to the present invention, the fixing guide block of the clamping portion of the cover device for a machine tool includes a groove portion into which the fixing portion is inserted; and a bridge portion formed for reciprocating movement of the fixing insertion portion during clamping or unclamping with the fixing portion.

In addition, in another preferred embodiment of the cover device for a machine tool according to the present invention, the connection guide block of the clamping unit of the cover device of the machine tool is formed open in the opposite direction to the slit portion into which the connection portion is inserted; and a guide portion formed stepwise to reciprocate the connection insertion portion during clamping or unclamping with the connection portion.

In the cover device for a machine tool according to the present invention, the clamping part is clamped with the fixing part and the connection part to close the upper part of the machine tool during processing to block scattering of chips or cutting oil, and during non-processing, the workpiece before processing is placed in the processing unit. In order to completely open the upper part of the machine tool for easy setting, it is unclamped with the fixed part and clamped with the connection part, reducing the opening and closing operation time of the cover and reducing non-processing time by enabling smooth setting of the workpiece. Accordingly, there is an effect of maximizing the productivity of the machine tool.

In addition, the cover device of the machine tool according to the present invention is clamped or unclamped with the fixing part or the connecting part through the reciprocating movement of the rod part of the clamping part, thereby repeatedly and stably performing the opening and closing process of the upper part of the machine tool, There is an effect that can increase reliability and safety.

Furthermore, the cover device of the machine tool according to the present invention has the effect of maximizing space utilization through miniaturization by removing unnecessary configurations, preventing safety accidents of workers in advance, and maximizing worker convenience.

1 shows a perspective view of a state in which a cover device of a machine tool according to an embodiment of the present invention is completely unfolded in the Y-axis direction during processing.
Figure 2 shows a perspective view of a state in which the cover device of the machine tool according to an embodiment of the present invention is completely folded in the Y-axis direction during processing.
FIG. 3 shows a detailed view of part A of FIG. 2 .
Figure 4 shows a perspective view of a completely folded state of the cover device of the machine tool according to an embodiment of the present invention when non-processing.
Figure 5 shows a perspective view of the clamping portion of the cover device of the machine tool according to an embodiment of the present invention.

Hereinafter, it will be described in detail with reference to the drawings of the prefabricated pillow according to an embodiment of the present invention. The embodiments introduced below are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention may be embodied in other forms without being limited to the embodiments described below. And, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers indicate like elements throughout the specification.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and the common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of explanation.

Terms used in this specification are for describing embodiments, and therefore are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprise" and/or "comprising" means that a stated component, step, operation, and/or element is the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

1 shows a perspective view of a state in which the cover device of a machine tool according to an embodiment of the present invention is fully unfolded in the Y-axis direction during processing, and FIG. 2 is a cover of a machine tool according to an embodiment of the present invention during processing. A perspective view of a state in which the device is completely folded in the Y-axis direction is shown, and FIG. 3 shows a detailed view of part A of FIG. 2 . Figure 4 shows a perspective view of a completely folded state of the cover device of the machine tool according to an embodiment of the present invention when non-processing, Figure 5 shows a perspective view of the clamping portion of the cover device of the machine tool according to an embodiment of the present invention .

The definitions of terms used below are as follows. "X-axis direction" means the horizontal direction in the same member, that is, the X-axis direction in FIG. 1, and "Y-axis direction" means the longitudinal direction in the same member, that is, the Y-axis direction in FIG. It means, "Z-axis direction" means the height direction in the same member, that is, the Y-axis direction in FIG. 1 while orthogonal to the X-axis direction and the Y-axis direction.

A cover device 1 for a machine tool according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 . 1 to 5, the cover device 1 for a machine tool according to an embodiment of the present invention includes a frame part 100, a ram head part 200, a first cover part 300, a fixing part 400, a connection part 500, and a clamping part 600.

The frame part 100 forms the outer shape of the machine tool. Although not necessarily limited thereto, the frame unit 100 is formed of a metal material and includes a processing unit inside which processes a workpiece installed on a chuck. When a workpiece is processed into a tool in the processing unit, cutting oil is supplied to prevent thermal deformation of the workpiece and tool due to frictional heat. Chips are generated in the workpiece during machining in the processing unit. Although not shown in the drawings, the inside of the frame unit 100 includes a table on which a chuck is installed and a bed on which the table is installed. In addition, a transfer unit for rotating or transferring a table or the like is installed. In addition, an automatic tool changer (ATC) may be installed in the frame unit 100 to perform various processing and improve productivity.

The ram head unit 200 is installed to be movable in the X-axis direction, Y-axis direction, or Z-axis direction inside the frame unit 100 . An attachment may be mounted on the front end of the ram head part 200 as needed. Various tools may be mounted on the front end of each attachment.

The first cover part 300 is installed between the frame part 100 and the ram head part 200 to be contractible or expandable in the Y-axis direction. That is, one end of the first cover part 300 is connected to the frame part 100, and the other end of the first cover part 300 is installed to be connected to the bracket part of the ram head part 200, so that the ram head part 200 ) closes the upper Y-axis direction of the machine tool while shrinking or expanding in the Y-axis direction according to the Y-axis movement of the machine tool.

As shown in Figures 1 to 4, the cover device 1 of the machine tool according to an embodiment of the present invention is reduced in the X-axis direction between the first cover part and the ram head part while orthogonal to the first cover part Alternatively, a second cover part 700 installed to be expandable may be further included. That is, one end of the second cover part 700 is connected to one side of the ram head part 200, and the other end of the second cover part 700 is installed to be connected to a part of the Y-axis direction of the frame part, so that the ram head While reducing or expanding in the X direction according to the X-axis movement of the unit 200, the upper X-axis direction of the machine tool is closed. Although not necessarily limited to this, the first cover part 300 and the second cover part 700 are formed to be foldable in a bellows type or telescopic form, so they operate flexibly in the movement of the ram head part 200 and chip during processing. However, it is possible to block the flow of cutting oil to the outside through the upper part of the machine tool.

The fixing part 400 is installed on the frame part 200 . That is, the fixing part 400 is fixedly installed inside the upper part of the Y-axis tip of the frame part 200 by bolts, rivets, welding, or the like. 3 and 5, the fixing part 400 according to an embodiment of the present invention is a fixing groove 410 formed through the fixing part so that the fixing insertion part 621 of the rod part 620 is inserted. ).

The connection part 500 is installed on the first cover part 300 . That is, the connecting part 500 is fixedly installed on the outer side of the top of the Y-axis tip of the first cover part 300 by bolts, rivets, welding, or the like. As shown in FIGS. 3 and 5, the connection part 500 according to an embodiment of the present invention includes a connection groove 510 formed through the connection part so that the connection insertion part 623 of the rod part 620 is inserted. include

Although not necessarily limited thereto, both the fixing part 400 and the connecting part 500 are formed in a plate shape. Accordingly, it is easily inserted and fastened into the groove part 631 and the slit part 641 of the fixing guide block 630 and the connection guide block 640 to be described later, and the rod part of the clamping part is fixed and inserted during clamping with the fixing part 400. As the part 621 is inserted into the fixing groove 410 and clamped with the connection part 500, the connection insertion part 623 of the rod part is inserted into the connection groove 510 and fastened through the double locking function during processing. It is possible to implement smooth operation and promote miniaturization by preventing the clamping part from being separated by clamping coupling of the fixing part and the connecting part.

The clamping part 600 selectively clamps or unclamps the fixing part 400 or the connecting part 500.

In addition, the clamping part 600 of the cover device of the machine tool according to an embodiment of the present invention is clamped with both the fixing part 400 and the connection part 500 to close the upper part of the machine tool during processing, so that the ram head part As the first cover part 300 closes the upper Y-axis direction of the machine tool by the Y-axis movement of (100), it prevents chips or cutting oil from leaking out through the upper part of the machine tool to improve the working environment , safety accidents can be prevented in advance and the convenience of workers can be promoted.

In addition, the clamping part 600 is unclamped with the fixing part 400 and clamped with the connection part 500 to open the upper part of the machine tool in order to set a workpiece in the chuck of the processing part or move a workpiece that has already been processed during non-processing. Accordingly, as one side of the first cover part 300 is not fixed to the frame part 200 and becomes a free end, the upper Y-axis direction of the machine tool is completely opened by the movement of the ram head part 100 in the Y-axis direction It becomes.

Therefore, the cover of the machine tool according to the present invention reduces the opening and closing operation time of the cover and enables smooth setting of the workpiece, thereby maximizing the productivity of the machine tool according to the reduction of non-processing time.

1 to 5, the clamping part 600 of the cover device 1 of the machine tool according to an embodiment of the present invention includes a body part 610, a rod part 620, and a fixed guide block 630. ), and a connection guide block 640.

The body portion 610 is formed in a substantially rectangular parallelepiped shape to form the outer shape of the clamping portion 600 .

A support part 650 is formed on the outside of the body part 610 to facilitate attachment and detachment of the body part 610, and stably supports the fixed guide block 630 and the connection guide block 640.

The rod part 620 is installed through the body part 610 so as to be able to linearly reciprocate around the body part 610 . That is, the body portion 610 and the rod portion 620 are reciprocated in the X-axis direction of the body portion 610 with the body portion 610 as the center by pneumatic or hydraulic pressure in the same principle as the double-acting cylinder. Exercise. Although not necessarily limited thereto, the rod portion 620 is formed in a circular rod shape.

As shown in FIG. 5 , the rod part 620 includes a fixed insertion part 621 formed at one end of the rod part 620 to be inserted into the fixing groove 410 during clamping with the fixing part 400 . The rod part 620 includes a fixing hooking part 622 formed thicker than the diameter of the rod part 620 in the middle of the fixed insertion part 621 and the main body part 610 . The rod part 620 includes a connection insertion part 623 formed at the other end of the rod part 620 to face the fixed insertion part 621 so as to be inserted into the connection groove 510 during clamping with the connection part 500. . The rod part 620 is thicker than the diameter of the rod part 620 in the middle of the connection insertion part 622 and the main body part 610 and faces the fixing hooking part 622 and is formed so as to be symmetrical with each other around the main body part. A hooking portion 624 is provided. As the detailed configuration of the rod part 620 is formed symmetrically around the main body part 610, it is possible to maximize the stability and reliability of the machine tool by realizing stable linear reciprocating motion.

In addition, the rod part is stably prevented from being separated when clamping with the fixing part 400 or when clamping with the connection part 500 by the fixing hooking part 622 and the connecting hooking part 624, and the rod part has a small linear reciprocating stroke. Only the clamping or unclamping operation can be performed selectively on the fixed part and the connecting part.

The fixed guide block 630 extends from one side of the body portion 610 and guides the rod portion 620 when combined with the fixing portion 400 .

As shown in FIGS. 3 and 5, the fixed guide block 630 according to an embodiment of the present invention includes a groove part 631 and a fixing part ( 400) and a bridge part 632 formed stepwise so as to smoothly guide the reciprocating movement of the fixing insertion part 621 during clamping or unclamping and to engage the fixing hooking part 622.

The connection guide block 630 is formed to extend from the other side of the body portion 610 so as to cross while facing the fixed guide block 630, and guides the rod portion 620 when combined with the connection portion 500.

3 and 5, in the connection guide block 640 according to an embodiment of the present invention, a portion of the connection guide block 630 is recessed so that it is opened in the opposite direction facing the portion 631. The slit portion 641 into which the connecting portion 500 is inserted and the connecting portion 500 smoothly guide the reciprocating movement of the connecting insertion portion 623 during clamping or unclamping, and are stepped so that the connecting portion 624 is caught. It includes a guide portion 642 formed.

Therefore, the cover device for a machine tool according to the present invention is clamped or unclamped with a fixed part or a connection part through the reciprocating movement of the rod part of the clamping part, thereby repeatedly and stably performing the opening and closing process of the upper part of the machine tool, It can increase reliability and safety, maximize space utilization by promoting miniaturization through simplification, prevent safety accidents of workers in advance, and maximize worker convenience.

The operating principle of the cover device 1 for a machine tool according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 .

As shown in FIGS. 1 and 2 , during processing, the clamping part 600 maintains a clamped state with the fixing part 400 and the connecting part 500 . Accordingly, even when it is maximally extended in the Y-axis direction (Fig. 1) and maximally stretched in the Y-axis direction (Fig. 2), the upper Y-axis direction of the machine tool is always closed to prevent chips or coolant from flowing outside the machine tool during processing. It fundamentally blocks leakage to maintain a clean working environment and protect workers.

As such, during processing, the fixing part 400 is inserted into the groove part 631 of the fixing guide block 630 of the clamping part 600 to primarily prevent separation. Thereafter, in a state in which the fixing part 400 is inserted into the groove part 631 of the fixing guide block 630, the fixing insertion part 621 of the rod part 620 is inserted into the fixing groove part 410 and clamped, 2 Gradually prevent breakaway. Thereafter, the fixed insertion part 621 is inserted into the fixing groove 410 along the bridge part 632, and at the same time, the fixing insertion part 622 is caught on the bridge part 632 and the fixed insertion part 621 is separated and unclamping. Thirdly, prevent it from happening.

When processing in the same way, the connection part 500 is inserted into the slit part 641 of the connection guide block 640 of the clamping part 600 to primarily prevent separation. Thereafter, in a state in which the connection part 500 is inserted into the slit part 641 of the connection guide block 650, the connection insertion part 623 of the rod part 620 is inserted into the connection groove part 510 and clamped, and the second to prevent departure. Thereafter, the connection insertion part 623 is inserted into the connection groove 510 along the guide part 642, and at the same time, the connection locking part 624 is caught on the guide part 642 so that the connection insertion part 623 is separated and unclamping. Thirdly, prevent it from happening.

Accordingly, as one side of the first cover part 300 is connected to the frame part 200 and the other side is connected to the ram head part 100, the bellows form is formed according to the movement of the ram head part 100 in the Y-axis direction. While the first cover portion 300 formed of is extended or contracted, it closes the upper Y-axis of the machine tool.

Therefore, the cover device for a machine tool according to the present invention is clamped or unclamped with a fixed part or a connection part through the reciprocating movement of the rod part of the clamping part, thereby repeatedly and stably performing the opening and closing process of the upper part of the machine tool, Reliability and safety can be increased.

As shown in FIG. 4, during non-processing, the upper part of the machine tool must be opened to quickly set the workpiece in the chuck of the processing unit or to move the processed workpiece. At this time, in order to quickly open the upper Y-axis without mechanical or inter-axis interference, it should be in the state shown in FIG. 4. By minimizing non-machining time and completely opening the top of the Y-axis through a simple operation, productivity can be maximized and miniaturization of the machine tool can be promoted.

As such, during non-processing, the fixing insertion part 621 of the rod part 620 of the clamping part 600 moves linearly and is separated from the fixing groove part 410, and then enters the groove part 631 of the fixed guide block 630. As the fixing part 400 is separated, the clamping part 600 and the fixing part 400 are unclamped. In this case, when one side of the first cover part 300 is completely moved in the Y-axis direction of the ram head part 100 as the coupling with the frame part 100 is released, the first cover part 300 and the fully stretched state The upper part of the Y-axis is opened at

At this time, as described above, the clamping state of the clamping part 600 and the connecting part 500 is maintained.

During non-processing, it is unclamped with the fixing part and clamped with the connection part to completely open the upper part of the machine tool so that the workpiece can be easily set on the processing part before processing, reducing the opening and closing operation time of the cover and smoothing the workpiece. By enabling setting, the productivity of the machine tool can be maximized according to the reduction of non-machining time.

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those having ordinary knowledge in the art will find the scope of the present invention described in the claims to be described later. It will be understood that various modifications and changes can be made to the present invention without departing from the spirit and technical scope. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: cover device, 100: ram head part,
200: frame part, 300: first cover part,
400: fixing part, 410: fixing groove part,
500: connection part, 510: connection groove part,
600: clamping part, 610: body part,
620: rod part, 621: fixed insertion part,
622: fixed hooking part, 623: connection insertion part,
624: connecting hook, 630: fixed guide block,
631: groove part, 632: bridge part,
640: connection guide block, 641: slit portion,
642: guide unit, 650: support unit,
700: second cover part.

Claims (7)

frame part;
A ram head unit installed to be movable in the X-axis direction, Y-axis direction, or Z-axis direction;
a first cover portion installed between the frame portion and the ram head portion to be contractible or expandable in the Y-axis direction;
a fixing unit installed on the frame unit;
a connection part installed in the first cover part; and
A clamping part clamped with the fixing part and the connection part to close the upper part during processing, and unclamped with the fixing part and clamped with the connection part to open the upper part during non-processing,
The clamping part,
body part;
a rod unit installed through the body unit so as to be capable of linear reciprocating movement around the body unit;
a fixing guide block extending from one side of the main body portion and guiding the rod portion when coupled with the fixing portion; and
A cover device for a machine tool comprising: a connection guide block extending to the other side of the main body portion so as to face and stagger the fixed guide block and guide the rod portion when coupled with the connection portion.
delete delete According to claim 1,
The fixing part,
A cover device for a machine tool comprising: a fixing groove formed through the fixing portion so that the fixing insertion portion of the rod portion is inserted.
According to claim 1,
The connection part,
A cover device for a machine tool comprising a; connection groove formed through the connection part to insert the connection insertion part of the rod part.
According to claim 4 or 5,
The fixed guide block,
a groove portion into which the fixing portion is inserted; and
A cover device for a machine tool comprising a; bridge part formed for reciprocating movement of the fixing insertion part during clamping or unclamping with the fixing part.
According to claim 6,
The connection guide block,
a slit portion formed open in a direction opposite to the groove portion and into which the connecting portion is inserted; and
A cover device for a machine tool comprising: a guide portion formed stepwise for reciprocating movement of the connection insertion portion during clamping or unclamping with the connection portion.

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