KR102746226B1 - Opening and closing device of machine tool - Google Patents

Abstract

The present invention relates to an opening/closing device for a machine tool, characterized by including: a casing portion; a spindle portion movably installed; an opening/closing portion installed so as to be expandable or contractible in one direction between the casing portion and the spindle portion; a first fixing portion installed in the casing portion; and a first loading portion installed on one side of the opening/closing portion and selectively coupled to or released from the first fixing portion.

Description

{Opening and closing device of machine tool}

The present invention relates to an opening/closing device for a machine tool, and more specifically, to an opening/closing device for a machine tool that closes a machining area during machining to prevent chips or cutting oil from flying, and opens the machining area during non-machining to facilitate settling or removal of a workpiece before machining.

In general, a machine tool refers to a machine used for the purpose of processing metal/non-metal workpieces into desired shapes and dimensions using appropriate tools through various cutting or non-cutting processing methods.

Various types of machine tools, including turning centers, vertical/horizontal machining centers, gate-type machining centers, Swiss turns, electrical discharge machines, horizontal NC boring machines, and CNC lathes, are widely used in various industrial fields for their respective tasks.

Generally, various types of machine tools currently in use are equipped with control panels that use numerical control (NC) or computerized numerical control (CNC) technology. These control panels are equipped with various function switches or buttons and monitors.

In addition, machine tools are equipped with a table on which the workpiece material is placed and transferred for processing the workpiece, a pallet for preparing the workpiece before processing, a spindle on which tools or workpieces are combined and rotated, a tailstock, a steadiness device, etc. for supporting the workpiece during processing. In machine tools, the table, tool rest, spindle, tailstock, steadiness device, etc. are equipped with a transfer unit that transfers along a transfer axis to perform various processing operations.

These machine tools can be classified into horizontal type machine tools and vertical type machine tools according to the direction of spindle arrangement. In horizontal type machine tools, the spindle rotation center axis is arranged perpendicular to the direction of gravity, and in vertical type machine tools, the spindle rotation center axis is arranged in line with the direction of gravity.

In general, machine tools use tools to process workpieces, and supply cutting oil to prevent thermal deformation of the workpiece and tool due to frictional heat. Chips are generated from the workpiece during processing.

Therefore, machine tools are generally equipped with various cover devices to protect peripheral devices and workers installed in the non-processing area from cutting oil and chips flying during processing.

In particular, the opening and closing devices of conventional machine tools had a problem in that the contracting or expanding movement for opening or closing was not performed at an accurate position, which lowered the processing precision of the machine tool, thereby increasing the processing error rate and lowering the reliability and stability of the processed product.

The conventional machine tool's opening and closing device has a problem in that it cannot completely open or close the opening and closing part of the machine tool to prevent chips or cutting oil from flying during machining and to set the workpiece in the chuck, which is the machining space, or to move the machined workpiece during non-machining, which increases the non-machining time, reduces productivity, and causes inconvenience to the operator.

The opening and closing devices of conventional machine tools, especially in the case of the Y-axis cover device of a 5-axis machine, have the problem that it takes a lot of time to open and close the Y-axis cover, a two-way cylinder must be used to drive the movement, and the cost increases due to the complex installation of cables.

Furthermore, conventional machine tool opening and closing devices have problems in that they cannot miniaturize machine tools because they require a lot of time and equipment to completely open when not working, and space utilization is extremely low due to installation space and transportation restrictions, and the worker's work space is narrow, threatening the safety of the worker.

Republic of Korea Patent Publication No. 10-2016-0068173

The present invention is to solve the above problems, and the purpose of the present invention is to provide an opening/closing device for a machine tool, in which a first loading section is connected to a first fixing section and a second loading section is released from the second fixing section to completely block chips or cutting oil from flying when closing the upper part of the machine tool during processing, and in which, when not processing, the upper part of the machine tool is completely opened so that a workpiece before processing can be easily set in the processing section, the first loading section is released from the first fixing section and the second loading section is connected to the second fixing section, thereby performing precise opening and closing operations of the opening/closing section to increase the processing precision of the workpiece, reducing the operation time to improve the productivity of the machine tool, and stably performing repeated opening and closing operations to increase the reliability and safety of the machine tool.

In order to achieve the purpose of the present invention, an opening/closing device of a machine tool according to the present invention may include: a casing portion; a spindle portion movably installed; an opening/closing portion installed so as to be expandable or contractible in one direction between the casing portion and the spindle portion; a first fixing portion installed in the casing portion; and a first loading portion installed on one side of the opening/closing portion and selectively coupled or disengaged with the first fixing portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, it may include a second loading part installed on the other side of the opening/closing part; and a second fixing part installed on one side of the opening/closing part so that the second loading part can be selectively engaged or disengaged.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first loading section is coupled with the first fixing section to close the upper portion of the machining area during machining, and the second loading section can be released from the second fixing section.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first loading portion may be released from the first fixing portion to open the upper portion of the machining area during non-processing, and the second loading portion may be coupled with the second fixing portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first loading section may include a main body section; and a first extension section formed to be inserted into or extracted from the main body section.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first fixing portion may include a first fixed coupling portion fixedly installed to the casing portion, and the first loading portion may include a first fixed portion installed to a part of the first extension portion and complementarily coupled with the first fixed coupling portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first fixed coupling portion may include a first receiving portion that is formed to be open in a direction facing the first loading portion; and the first loading portion may include a first guide portion that is installed on a part of the first fixed portion to guide the first fixed portion to be received in the first receiving portion when the first fixed portion is coupled to the first fixed coupling portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the first fixing portion may include a first sensing portion installed in the first fixed coupling portion, and the first loading portion may include a first detection portion installed in the first fixing portion to correspond to the first sensing portion when the first extension portion is pulled out.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the second loading section may include: a body section; and a second extension section formed to be inserted into or extracted from the body section.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the second fixing portion may include a bridge portion that extends from one side of the opening/closing portion toward the other side; and a second fixed coupling portion that is coupled to a part of the bridge portion; and the second loading portion may include a second fixed portion that is installed to a part of the second extension portion and complementarily coupled with the second fixed coupling portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the second fixed coupling portion may include a second receiving portion that is formed to be open in a direction facing the second loading portion; and the second loading portion may include a second guide portion that is installed on a part of the second fixed portion to guide the second fixed portion to be received in the second receiving portion when the second fixed portion is coupled to the second fixed coupling portion.

In addition, in another preferred embodiment of the opening/closing device of the machine tool according to the present invention, the second fixing portion may include a second sensing portion installed on the second fixed coupling portion, and the second loading portion may include a second detection portion installed on the second fixing portion to correspond to the second sensing portion when the second extension portion is pulled out.

The opening/closing device of a machine tool according to the present invention has the effect of improving the processing precision of the machine tool, minimizing the processing error rate, and maximizing the quality of a machined product by precisely performing the operation of reducing or expanding the opening/closing section for opening or closing the upper part of the machine tool by selectively engaging or disengaging the first fixing section (or the second fixing section) and the first loading section (or the second loading section).

In addition, in the opening/closing device of the machine tool according to the present invention, the first fixing part is combined with the first loading part to close the upper part of the machine tool during machining, thereby blocking chips or cutting oil from flying, and when not machining, the first fixing part is released from the first loading part to completely open the upper part of the machine tool so that the workpiece before machining can be easily set in the machining area, and the second fixing part is combined with the second loading part, thereby reducing the opening and closing operation time of the opening/closing part and enabling smooth setting of the workpiece, thereby minimizing the non-machining time and thereby maximizing the productivity of the machine tool.

In addition, the opening/closing device of the machine tool according to the present invention has first and second sensing units and first and second detection units, so that when the first fixing unit and the first loading unit are combined, the first sensing unit detects the first detection unit and notifies that a processing operation can be performed, and when the first sensing unit does not detect the first detection unit, notifies that the opening/closing unit can be opened, thereby implementing accurate operation of the opening/closing device, thereby protecting the worker from chips flying during processing and efficiently promoting transport of the workpiece when not processing.

In addition, the opening/closing device of the machine tool according to the present invention can increase the reliability and safety of the machine tool by repeatedly and stably performing the opening and closing process of the upper part of the machine tool by engaging or disengaging with the first fixing part through the reciprocating movement of the first extension part of the first loading part (or the second extension part of the second loading part).

Furthermore, the opening/closing device of the machine tool according to the present invention has the effect of reducing costs by separating the first loading section and the second loading section and eliminating unnecessary components, maximizing space utilization by miniaturizing the machine, and securing a work space for the worker, thereby preventing safety accidents in advance and maximizing the convenience of the worker.

Figure 1 is a conceptual diagram showing the operating principle of a machine tool according to one embodiment of the present invention during processing.
Figure 2 is a conceptual diagram showing the operating principle of a machine tool according to one embodiment of the present invention during processing.
Figure 3 illustrates a conceptual diagram of the operating principle according to one embodiment of the present invention in a non-processed state.
Figure 4 shows a perspective view of the opening and closing part fully unfolded during processing.
Figure 5 shows a detailed view of part A of Figure 4.
Figure 6 shows a detailed view of part B of Figure 4.
Figure 7 shows a perspective view of the opening and closing part when completely folded during non-processing.
Figure 8 shows a detailed view of part C of Figure 7.
Figure 9 shows a detailed view of part D of Figure 7.
Figure 10 is a plan view showing the joint relationship between the first loading section and the first fixing section or the second loading section and the second fixing section.
Figure 11 is a front view showing the joint relationship between the first loading section and the first fixing section or the second loading section and the second fixing section.

Hereinafter, a detailed description will be given with reference to drawings of an opening/closing device of a machine tool according to an embodiment of the present invention. The embodiments introduced below are provided as examples so that those skilled in the art can sufficiently convey the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below and may be embodied in other forms. In addition, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numerals throughout the specification represent like components.

The advantages and features of the present invention, and the methods for achieving them, will become clear with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and the present embodiments are provided only to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of explanation.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the present invention. In this specification, the singular also includes the plural unless the context clearly dictates otherwise. The terms "comprise" and/or "comprising" as used herein do not exclude the presence or addition of one or more other components, steps, operations and/or elements.

FIG. 1 is a conceptual diagram showing the operating principle of a machine tool according to one embodiment of the present invention during processing, and FIG. 2 is a conceptual diagram showing the operating principle of a machine tool according to one embodiment of the present invention during processing.

FIG. 3 is a conceptual diagram showing the operating principle of a machine tool according to one embodiment of the present invention when not being processed, and FIG. 4 is a perspective view showing a state in which the opening/closing part is fully unfolded when processing.

Figure 5 shows a detailed view of part A of Figure 4, and Figure 6 shows a detailed view of part B of Figure 4.

Figure 7 shows a perspective view of the opening/closing part in a completely folded state when not being processed, and Figure 8 shows a detailed view of part C of Figure 7.

Fig. 9 shows a detailed view of part D of Fig. 7, and Fig. 10 is a plan view showing the joint relationship between the first loading section and the first fixing section or the second loading section and the second fixing section.

Figure 11 is a front view showing the joint relationship between the first loading section and the first fixing section or the second loading section and the second fixing section.

The definitions of terms used hereinafter are as follows. “X-axis direction” means a horizontal direction in the same member, that is, the X-axis direction in Fig. 1; “Y-axis direction” means a vertical direction in the same member while being orthogonal to the X-axis direction, that is, the Y-axis direction in Fig. 1; and “Z-axis direction” means a height direction in the same member while being orthogonal to the X-axis direction and the Y-axis direction, that is, the Z-axis direction in Fig. 1.

Referring to FIGS. 1 to 11, an opening/closing device (1) of a machine tool according to one embodiment of the present invention will be described. As illustrated in FIGS. 1 to 11, an opening/closing device (1) of a machine tool according to one embodiment of the present invention includes a casing portion (100), a spindle portion (200), an opening/closing portion (300), a first fixing portion (400), a first loading portion (500), a second fixing portion (600), and a second loading portion (600).

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

The spindle part (200) is movably installed in the casing part (100). Specifically, the spindle part (200) is installed so as to be movable in the X-axis direction, the Y-axis direction, or the Z-axis direction inside the casing part (100). An attachment may be mounted on the tip of the spindle part (200) as needed. Various tools may be mounted on the tip of each attachment.

The opening/closing part (300) is installed so as to be expandable or contractible in one direction between the casing part (100) and the spindle part (200). Specifically, the opening/closing part (300) is installed so as to be expandable or contractible in the Y-axis direction between the frame part (100) and the spindle part (200). One side of the opening/closing part means a part of the opening/closing part that is close to the casing part (100) in the Y-axis direction, and the other side of the opening/closing part means a part of the opening/closing part that is close to the spindle part (200) in the Y-axis direction. That is, one side of the opening/closing part (300) is connected to the casing part (100), and the other side of the opening/closing part (300) is installed so as to be connected to the bracket part of the spindle part (200), so as to close the upper Y-axis direction of the machine tool while contracting or expanding in the Y-axis direction according to the Y-axis movement of the spindle part (200). Although not necessarily limited thereto, the opening/closing part (300) is formed to be foldable in a bellows type or telescopic form so as to flexibly operate in response to the movement of the spindle part (200) and can prevent chips or cutting oil from leaking out through the upper part of the machine tool during processing.

The first fixing part (400) is installed in the casing part (200). That is, the first fixing part (400) can be fixedly installed on the upper inner side of the Y-axis end of the casing part (200) by means of a bolt, a rivet, welding, etc. In addition, the first fixing part (400) is combined with the first loading part (500) described below to play a role in fixing the first loading part (500) so that it does not come off from the first fixing part (400).

The first loading section (500) is installed on one side of the opening/closing section (300) and is selectively coupled or decoupled from the first fixing section (400). That is, the first loading section (500) can be fixedly installed to the Y-axis end of the opening/closing section (300) adjacent to the casing section (200) by means of a bolt, a rivet, welding, or the like. Specifically, when the opening/closing section (300) is expanded so that the processing area of the machine tool is closed, the first loading section (500) is installed at a position corresponding to the first fixing section (400) so that it can be coupled with the first fixing section (400).

The second fixing part (600) is installed on one side of the opening/closing part (300) so that the second loading part (700) described later can be selectively connected or disconnected. That is, the second fixing part (600) can be fixedly installed on the upper inner side of the tip of one side of the opening/closing part (300) by means of a bolt, rivet, welding, etc. In addition, the second fixing part (600) is connected to the second loading part (700) described later and serves to fix the second loading part (700) so that it cannot be separated from the second fixing part (600).

The second loading section (700) is installed on the other side of the opening/closing section (300). That is, the second loading section (700) can be fixedly installed to the Y-axis end of the opening/closing section (300) adjacent to the spindle section (200) by means of a bolt, rivet, welding, etc. Specifically, when the opening/closing section (300) is reduced so that the processing area of the machine tool is opened, the second loading section (700) is installed at a position corresponding to the second fixing section (600) so that it can be combined with the second fixing section (600).

Referring to FIGS. 4 to 5 and 9 to 11, the first fixing part (400) of the opening/closing device (1) of the machine tool according to the present invention includes a first fixed coupling part (410) and a first sensing part (420).

The first fixed coupling part (410) is fixedly installed to the casing part (100) and is selectively coupled or released from the first extension part (520) and/or the first fixed part (530) of the first loading part (500) described later. In addition, the first fixed coupling part (410) includes a first receiving part (411) that is formed to be open in a direction facing the first loading part (500), and as described later, the first fixed part (530) is received in the first receiving part (411) so that the first fixing part (400) and the first loading part (500) can be coupled.

The first sensing unit (420) is installed in the first fixed joint. The first sensing unit (420) detects the first sensing unit (550) described below to confirm whether the first fixing unit (400) and the first loading unit (500) are correctly coupled, and the first sensing unit (420) confirms that the first sensing unit (550) has moved and the first sensing unit (550) is not there, thereby confirming whether the first fixing unit (400) and the first loading unit (500) have been correctly released. Through this, when the first fixing unit and the first loading unit are combined, the first sensing unit detects the first sensing unit and notifies that the processing operation can be performed, and when the first sensing unit does not detect the first sensing unit, notifies that the opening/closing unit can be opened, thereby implementing accurate operation of the opening/closing device, thereby protecting the worker from chips flying during processing, and minimizing non-processing time by efficiently promoting transport of the workpiece during non-processing, thereby maximizing the productivity of the machine tool.

Referring to FIGS. 4 to 5 and FIGS. 9 to 11, the first loading section (500) of the opening/closing device (1) of the machine tool according to the present invention includes a main body section (510), a first extension section (520), a first fixing section (530), a first guide section (540), and a first detection section (550).

The main body (510) is formed in a roughly rectangular shape and forms the outer shape of the first loading section (500).

The first extension (520) is formed to be inserted into or withdrawn from the main body (510). That is, the main body (510) and the first extension (520) are formed in the same principle as a single-acting cylinder, such that the first extension (520) is inserted or withdrawn by reciprocating in the X-axis direction of the main body (510) by air pressure or hydraulic pressure. Although not necessarily limited thereto, the first extension (520) is formed in a cylindrical shape.

The first fixing member (530) is installed on a part of the first extension member (520) and is complementarily coupled with the first fixing coupling member (410) described above. That is, the first fixing member (530) is installed on one end of the X-axis direction of the first extension member (520) that is close to the first fixing member (400). Specifically, when the first extension member (520) is pulled out from the main body member (510) in a direction approaching the first fixing member (400), the first fixing member (530) installed on the first extension member (520) moves in a direction approaching the first fixing member (400), and as a result, the first fixing member (530) is coupled with the first fixing coupling member (410), so that the first fixing member (400) and the first loading member are coupled to each other, and the first fixing member (400) clamps the first loading member (500) so that the first loading member cannot move. Conversely, when the first extension (520) is introduced into the main body (510) in a direction away from the first fixing portion (400), the first fixing portion (530) installed in the first extension (520) also moves in a direction adjacent to the first fixing portion (400), and as a result, the first fixing portion (530) is released from the first fixing coupling portion (410) and unclamped so that the first loading portion (500) can move from the first fixing portion (400).

The first guide part (540) is installed on a part of the first fixing part (530) to guide the first fixing part (530) to be received in the first receiving part (411) when the first fixing part (530) is coupled to the first fixing coupling part (410). That is, the first guide part (540) is installed at a position corresponding to the first receiving part (411) so that the first fixing part (530) is received in the first receiving part (411) when the first fixing part (530) is coupled to the first fixing coupling part (410), and is formed in a shape that can be surrounded by the inner surface of the first fixing coupling part where the first receiving part (411) is formed. Referring to FIG. 9, although not necessarily limited thereto, the first guide part (540) may be formed as a rotatable roller. Specifically, when the first extension part (520) is withdrawn from the main body part (510) in a direction approaching the first fixing part (400) as described above, the first fixing part (530) installed in the first extension part (520) moves in a direction approaching the first fixing part (400). At this time, when the first guide part (540) installed in the first fixing part (530) comes into contact with the inner surface of the first fixing joint part (410) where the first receiving part (4110) is formed, the first guide part (540) rotates, thereby adjusting the position of the first fixing part (510) while accommodating the first fixing part (510) into the first receiving part (411), thereby guiding the first fixing part (530) to be accurately accommodated into the first receiving part (4110). Accordingly, in the opening/closing device of the machine tool according to the present invention, the operation of the opening/closing part for opening or closing the upper part is performed by accurately receiving the first fixing part (530) in the first guide part (540) into the first receiving part (4110), thereby accurately performing selective engagement or disengagement between the first fixing part and the first loading part, thereby improving the processing precision of the machine tool, minimizing the processing error rate, thereby improving the quality of the processed product, reducing the opening and closing operation time of the opening/closing part, enabling smooth setting of the workpiece, thereby minimizing the non-processing time, thereby maximizing the productivity of the machine tool.

Referring to FIGS. 10 and 11, the first detection unit (550) is installed in the first fixing unit (530) so as to correspond to the first sensing unit (420) when the first extension unit (520) is withdrawn. That is, the first detection unit (550) is installed in a position corresponding to the first sensing unit (420) so that the first sensing unit (420) can detect when the first extension unit (520) is withdrawn and the first fixing unit (530) is coupled with the first fixing coupling unit (410) as described above.

Referring to FIGS. 4, 6, to 8 and 10 to 11, the second fixing portion (600) of the opening/closing device (1) of the machine tool according to the present invention includes a bridge portion (610), a second fixed coupling portion (620) and a second sensing portion (630).

The bridge portion (610) is formed to extend from one side of the opening/closing portion (300) to the other side. That is, one end of the bridge portion (610) is connected to one side of the opening/closing portion (300) and fixed to the opening/closing portion (610), and the other end of the bridge portion (610) is connected to a second fixed connection portion (620) described later. In addition, since the bridge portion (610) is formed to extend from one side of the opening/closing portion (300) to the other side, when the opening/closing portion (300) is completely reduced and the second loading portion (700) is combined with the second fixing portion (600) to open the upper part of the processing area during non-processing, it connects and fixes one side and the other side of the completely reduced opening/closing portion (300), and serves to firmly bond the opening/closing portion (300) so that it does not expand again when the opening/closing portion (300) is moved to open the upper part of the processing area thereafter.

The second fixed coupling part (620) is coupled to a part of the bridge part (610). That is, when one end of the bridge part (610) is coupled to one side of the opening/closing part (300) and fixed to the opening/closing part (610), the second fixed coupling part (620) is connected to the other end of the bridge part (610). Then, the second fixed coupling part (620) is selectively coupled to or released from the second extension part (720) and/or the second fixed part (730) of the second loading part (700) described below. In addition, the second fixed coupling part (620) includes a second receiving part (621) that is formed to be open in a direction facing the second loading part (700), and as described below, the second fixed part (730) is received in the second receiving part (621) so that the second fixing part (600) and the second loading part (700) can be coupled.

The second sensing unit (630) is installed in the second fixed coupling unit (620). The second sensing unit (630) detects the second sensing unit (750) described below to confirm whether the second fixing unit (600) and the second loading unit (700) are accurately coupled.

Referring to FIGS. 4, 6, to 8 and 10 to 11, the second loading section (700) of the opening/closing device (1) of the machine tool according to the present invention includes a body section (710), a second extension section (720), a second fixing section (730), a second guide section (740) and a second detection section (750).

The body part (710) is formed in a roughly rectangular shape and forms the outer shape of the second loading part (700).

The second extension (720) is formed to be inserted into or withdrawn from the body (710). That is, the body (710) and the second extension (720) are formed in the same principle as a single-acting cylinder, such that the second extension (720) is inserted or withdrawn by reciprocating in the X-axis direction of the body (710) by air pressure or hydraulic pressure. Although not necessarily limited thereto, the second extension (720) is formed in a cylindrical shape.

The second fixing member (730) is installed on a part of the second extension member (720) and is complementarily coupled with the second fixing coupling member (620) described above. That is, the second fixing member (730) is installed on one end of the X-axis direction of the second extension member (720) that is close to the second fixing member (600). Specifically, when the second extension member (720) is pulled out from the body member (710) in a direction approaching the second fixing member (600), the second fixing member (730) installed on the second extension member (720) moves in a direction approaching the second fixing member (600), and as a result, the second fixing member (730) is coupled with the second fixing coupling member (620), so that the second fixing member (600) and the second loading member (700) are coupled to each other, and the first fixing member (400) clamps the first loading member (500) so that it cannot move. Conversely, when the second extension (720) is introduced into the body (710) in a direction away from the second fixing portion (600), the second fixing portion (730) installed in the second extension (720) also moves in a direction adjacent to the second fixing portion (600), and as a result, the second fixing portion (730) is released from the second fixing coupling portion (620) and unclamped so that the second loading portion (700) can move freely from the second fixing portion (600).

The second guide part (740) is installed on a part of the second fixing part (730) to guide the second fixing part (730) to be received in the second receiving part (621) when the second fixing part (730) is coupled to the second fixing coupling part (620). That is, the second guide part (740) is installed at a position corresponding to the second receiving part (621) so that the second fixing part (730) is received in the second receiving part (621) when the second fixing part (730) is coupled to the second fixing coupling part (620), and is formed in a shape that can be surrounded by the inner surface of the second fixing coupling part (620) where the second receiving part (621) is formed. Referring to FIG. 6, although not necessarily limited thereto, the second guide part (740) may be formed as a rotatable roller. Specifically, when the second extension part (720) is withdrawn from the body part (710) in a direction approaching the second fixing part (600) as described above, the second fixing part (730) installed in the second extension part (720) moves in a direction approaching the second fixing part (600). At this time, when the second guide part (740) installed in the second fixing part (730) comes into contact with the inner surface of the second fixing joint part (620) where the second receiving part (621) is formed, the second guide part (740) rotates, thereby adjusting the position of the second fixing part (730) while receiving the second fixing part (730) into the second receiving part (621), thereby guiding the second fixing part (730) to be accurately received into the second receiving part (621). Accordingly, the opening/closing device of the machine tool according to the present invention accurately performs selective engagement or disengagement between the first fixing portion (400) and the first loading portion (500) by accurately receiving the second fixing portion (730) in the second guide portion (740) into the second receiving portion (621) for the operation of reducing or expanding the opening/closing portion for opening or closing the upper portion, thereby improving the processing precision of the machine tool, minimizing the processing error rate, thereby improving the quality of the processed product, and minimizing the non-processing time by reducing the opening/closing operation time of the opening/closing portion and enabling smooth setting of the workpiece, thereby maximizing the productivity of the machine tool.

Referring to FIGS. 10 and 11, the second detection unit (750) is installed in the second fixing unit (730) so as to correspond to the second sensing unit (630) when the second extension unit (720) is withdrawn. That is, the second detection unit (750) is installed in a position corresponding to the second sensing unit (630) so that the second sensing unit (630) can detect when the second extension unit (720) is withdrawn and the second fixing unit (730) is coupled with the second fixing coupling unit (620). In this way, the opening/closing device (1) of the machine tool according to the present invention has a second sensing unit and a second detection unit, so that when the second fix unit and the second loading unit are coupled, the second sensing unit detects the second detection unit and notifies that the opening/closing unit can be moved to open the upper part of the machine tool, and if the second sensing unit does not detect the second detection unit, it notifies that the second loading unit is not yet accurately coupled to the second fix unit and that the upper part of the machine tool cannot be opened, thereby implementing accurate operation of the opening/closing device. Accordingly, during processing, the opening/closing unit is maintained in an expanded state to protect the operator from flying chips, and during non-processing, the opening/closing unit is maintained in a contracted state to efficiently promote transport of the workpiece, thereby minimizing non-processing time and maximizing the productivity of the machine tool.

The operating principle of the opening/closing device (1) of a machine tool according to one embodiment of the present invention will be described with reference to FIGS. 1 to 9.

Referring to FIG. 1 and FIG. 4 to FIG. 6, when machining, the opening/closing part (300) must be expanded so that chips or cutting oil generated in the machining area can be completely blocked from flying away, and both one side and the other side of the opening/closing part (300) must be firmly fixed to the casing part (100) and the spindle part (200). The machining area refers to the space where machining of the machine tool takes place, and refers to the space surrounded by the opening/closing part (300) and the casing part (100) in FIG. 1, and the non-machining area refers to a space outside the machining area. Accordingly, the present invention always closes the upper Y-axis direction of the machine tool even when it is expanded to the maximum in the Y-axis direction (FIG. 1) or expanded to the maximum in the Y-axis direction (FIG. 2), thereby fundamentally blocking chips or cutting oil from leaking out of the machine tool during machining, thereby maintaining a clean working environment and protecting the operator.

Specifically, in the opening/closing device (1) of the machine tool according to one embodiment of the present invention, in order to close the upper part of the processing area during processing, the first loading part (500) is coupled with the first fixing part (400), and the second loading part (700) is released from the second fixing part (600). That is, since the first loading part (500) is coupled with the first fixing part (400), the first loading part (500) is also fixed to the first fixing part (400) that is fixedly installed to the casing part (100), and ultimately, the first fixing part (400) and the first loading part (500) are fixed together to the casing part (100) to couple and fix one side of the casing part (100) and the cover part (300). In addition, since the second loading part (700) is released from the second fixing part (600), the second fixing part (730) is not connected to the second fixed connection part (620) of the second fixing part (600), so that one side and the other side of the cover part (300) are no longer connected and fixed by the bridge part (610), and thus the opening/closing part (300) can be expanded.

Accordingly, the opening/closing part (300) is fixedly installed to the casing part (100) to completely close the processing area, and since the opening/closing part (300) is in an expandable state, the opening/closing part (300) can completely close the upper part of the processing area when it is fully expanded.

Therefore, the opening/closing device of the machine tool according to the present invention prevents chips or cutting oil from flying by combining the first fixing part with the first loading part to close the upper part of the machine tool, thereby ensuring the safety of the operator, and since the operation of expanding the opening/closing part to open the upper part of the machine tool is accurately performed by selectively combining or disengaging the first fixing part (or the second fixing part) and the first loading part (or the second loading part), the processing precision of the machine tool is improved, thereby minimizing the processing error rate and maximizing the quality of the processed product, and the opening and closing process of the opening/closing part is repeatedly and stably performed through the reciprocating movement of the first loading part (or the second loading part), thereby increasing the reliability and safety of the machine tool.

Referring to FIG. 3 and FIG. 7 to FIG. 9, when not being processed, the opening/closing part (300) is in a reduced state so that the workpiece before processing can be easily set in the processing area or the workpiece after processing can be easily collected, and one side and the other side of the opening/closing part (300) should be firmly fixed to each other so that there is no case of contact with the workpiece before or after processing or its transport mechanism during transport. Accordingly, the present invention should be in a state as in FIG. 3 in order to quickly open the upper part of the Y-axis without mechanical or inter-axial interference. By minimizing the non-processing time and completely opening the upper part of the Y-axis through a simple operation, productivity can be maximized and the miniaturization of the machine tool can be promoted.

Specifically, in the opening/closing device (1) of the machine tool according to one embodiment of the present invention, in order to open the upper part of the processing area during non-processing, the first loading part (500) is released from the first fixing part (400), and the second loading part (700) is coupled with the second fixing part (600). That is, since the first loading part (500) is released from the first fixing part (400), the first loading part (500) is released so that it can move freely from the first fixing part (400) fixedly installed in the casing part (100), and as a result, one side of the casing part (100) and the cover part (300) can be separated, so that the cover part (300) can be reduced. Since the second loading section (700) is connected to the second fixing section (600), when the second fixing section (730) is connected to the second fixed connection section (620) of the second fixing section (600), one side and the other side of the cover section (300) are connected and fixed by the bridge section, so that when the opening/closing section (300) is moved to open the processing area, the opening/closing section can move accurately as one piece by firmly tying both sides of the opening/closing section through the bridge section while the opening/closing section (300) is completely reduced.

Accordingly, the opening/closing part (300) can be separated from the casing part (100) and open the processing area, and since the opening/closing part is in a reduced state with one side and the other side firmly tied together, the upper part of the processing area can be completely opened accurately while minimizing the volume of the opening/closing part (300).

Therefore, the opening/closing device of the machine tool according to the present invention opens the upper part of the machine tool by disengaging the first fixing part from the first loading part, thereby completely opening the upper part, thereby safely settling or collecting the workpiece before or after processing, thereby ensuring the safety of the operator, and since the operation of reducing the opening/closing part to open the upper part of the machine tool is accurately performed by selective engagement or disengagement between the first fixing part (or the second fixing part) and the first loading part (or the second loading part), the processing precision of the machine tool is improved, thereby minimizing the processing error rate, thereby maximizing the quality of the processed product, and the opening and closing process of the opening/closing part is repeatedly and stably performed through the reciprocating movement of the first loading part (or the second loading part), thereby increasing the reliability and safety of the machine tool.

Specifically, the process of opening and closing the opening/closing device (1) of a machine tool according to one embodiment of the present invention is described.

Figures 1 and 4 show a state in which the opening/closing part (300) between the spindle part (200) and the casing part (100) is fully extended and the upper part of the processing area is closed. In addition, the first loading part (500) is coupled with the first fixing part (400), and the second loading part (700) is released from the second fixing part (600).

In order to open the upper part of the processing area in the state of Fig. 1, as shown in Fig. 2, the spindle part (200) first moves in a direction approaching the casing part (100) and pushes the opening/closing part (300) installed between the spindle part (200) and the casing part (100) toward the casing part (100) to completely reduce the opening/closing part (300).

After the opening/closing unit (300) is completely reduced, as shown in FIGS. 3 and 7, the first loading unit (500) is released from the first fixing unit (400), and the second loading unit (700) is switched to a state of being combined with the second fixing unit (600), thereby releasing the combination of the opening/closing unit (300) and the casing unit (100), and while the opening/closing unit (300) is completely reduced, one side and the other side of the opening/closing unit (300) are firmly tied together, and the spindle unit (200) is moved away from the casing unit (100) so that the opening/closing unit is moved together with the spindle unit (200) to completely open the upper part of the processing area.

In this way, the closing device of the machine tool according to the present invention completely covers the upper part of the machining area during machining, thereby preventing cutting oil or chips flying during machining from leaking out of the machining area, thereby ensuring the safety of the worker and preventing malfunction of the machine tool. In addition, when not machining, the upper part of the machine tool is completely opened to enable easy setting of the workpiece in the machining area before machining, thereby reducing the opening and closing operation time of the opening and closing part and enabling smooth setting of the workpiece, thereby maximizing the productivity of the machine tool by reducing the non-machining time.

Although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art or having ordinary knowledge in the art that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the present invention as described in the claims below. Accordingly, 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: Opening device, 100: Casing part,
200: Spindle part, 300: Opening part,
400: 1st fixing part, 410: 1st fixed joint part,
411: 1st receiving section, 420: 1st sensing section,
500: 1st loading section, 510: main body section,
520: 1st extension, 530: 1st fixed part,
540: 1st guide section, 550: 1st detection section,
600: 2nd fix section, 610: Bridge section,
620: Second fixed joint, 621: Second receiving section,
630: Second sensing unit, 700: Second loading unit.
710: Body section, 720: Second extension section,
730: Second fixed part, 740: Second guide part,
750: 2nd detection unit,

Claims (12)

casing section;
A spindle part that is movably installed;
An opening/closing part installed so as to be expandable or contractible in one direction between the casing part and the spindle part;
A first fixing part installed in the above casing part;
A first loading section installed on one side of the above opening and closing section and selectively coupled or disengaged with the first fixing section;
A second loading part installed on the other side of the above opening and closing part; and
A second fixing part is installed on one side of the opening/closing part so that the second loading part can be selectively coupled or decoupled;
The above first fixing portion includes a first fixing joint portion fixedly installed to the casing portion;
The first fixed joint includes a first receiving portion that is formed open in a direction facing the first loading portion;
The above first loading section,
Main body; and
A first extension part formed to be insertable or withdrawable from the main body part;
A first fixing part installed on a part of the first extension and complementarily coupled with the first fixing joint part; and
It includes a first guide part installed at a position corresponding to the first receiving part to guide the first fixing part to be received in the first receiving part when the first fixing part is coupled to the first fixing coupling part;
The above second fixing part,
A bridge portion formed to extend from one side of the opening/closing portion to the other side; and
A second fixed coupling part coupled to a part of the above bridge part;
The second fixed joint includes a second receiving portion formed to be open in a direction facing the second loading portion;
The above second loading section,
body part;
A second extension portion formed to be insertable or withdrawable into the above body portion;
A second fixing part installed on a part of the second extension and complementarily coupled with the second fixing joint part; and
It includes a second guide part installed at a position corresponding to the second receiving part to guide the second fixing part to be received into the second receiving part when the second fixing part is connected to the second fixing joint part;
When the first extension is withdrawn from the main body in a direction approaching the first fixing portion to close the upper portion of the processing area during processing, as the first fixing portion moves in a direction approaching the first fixing portion, the first fixing portion and the first fixing coupling portion are coupled so that the first loading portion and the first fixing portion are clamped, and when the second extension is introduced into the body in a direction away from the second fixing portion, as the second fixing portion moves in a direction approaching the second fixing portion, the second fixing portion is released from the second fixing coupling portion so that the second loading portion and the second fixing portion are unclamped.
A machine tool opening/closing device, characterized in that when the first extension is introduced into the main body in a direction away from the first fixing portion to open the upper portion of the processing area during non-processing, the first fixing portion moves in a direction adjacent to the first fixing portion, thereby releasing the first fixing portion from the first fixing coupling portion, so that the first loading portion and the first fixing portion are unclamped, and when the second extension is withdrawn from the body in a direction approaching the second fixing portion, the second fixing portion moves in a direction approaching the second fixing portion, thereby engaging the second fixing coupling portion, so that the second loading portion and the second fixing portion are clamped.
delete delete delete delete delete delete In the first paragraph,
The above first fixing part
Including a first sensing unit installed in the first fixed joint;
The above first loading section,
A machine tool opening/closing device, characterized by including a first sensing unit installed on the first fixing unit to correspond to the first sensing unit when the first extension unit is pulled out. delete delete delete In the first paragraph,
The above second fixing part,
Including a second sensing unit installed in the second fixed joint;
The above second loading section,
A machine tool opening/closing device characterized by including a second sensing unit installed on the second fixing unit so as to correspond to the second sensing unit when the second extension unit is pulled out.

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