Extra moving member installation apparatus of machine tool

Abstract

The present invention provides an additional transfer body installation device for a machine tool that allows for the rapid and convenient additional installation or removal of an additional transfer body on a box guideway without separating an existing transfer body already installed on the box guideway, by simply rotating the shaft portion of a coupling unit installed on the additional transfer body in the forward or reverse direction at a predetermined angle, thereby reducing the installation cost and time of the additional transfer body, preventing damage or breakage of equipment to reduce maintenance costs and time, increasing machinability by expanding the transfer distance between the transfer body and the additional transfer body, improving productivity by reducing non-machining time, and enhancing operator convenience and satisfaction.

Description

Technology Field

[0001] The present invention relates to an additional transfer body installation device for a machine tool, and more specifically, to an additional transfer body installation device for a machine tool, particularly a vibration damping device installation device, which can reduce the installation cost and time of an additional transfer body by quickly and easily attaching or detaching the additional transfer body to a box guideway while the transfer body is already installed on the box guideway through simple operation of a coupling unit installed on the additional transfer body. Background Technology

[0003] Generally, a machine tool refers to a machine used for the purpose of processing metal or non-metal workpieces into a desired shape and dimensions using a suitable tool through various cutting or non-cutting methods.

[0004] Various types of machine tools, including turning centers, vertical / horizontal machining centers, gantry machining centers, Swiss turns, electrical discharge machining machines, horizontal NC boring machines, and CNC lathes, are widely used in various industrial sites to suit the specific tasks of the operation.

[0005] In general, various types of machine tools currently in use are equipped with control panels that utilize numerical control (NC) or computerized numerical control (CNC) technology. These control panels are equipped with various function switches or buttons and monitors.

[0006] In addition, the machine tool is equipped with a table on which a material serving as a workpiece is placed and which is transported for processing the workpiece, a pallet for preparing the workpiece before processing, a spindle on which a tool or workpiece is combined and rotates, a tailstock for supporting the workpiece during processing, a vibration dampener, etc.

[0007] Generally, in machine tools, the table, tool holder, spindle, tailstock, and dust collector are equipped with a feed unit that moves along the feed axis to perform various machining operations.

[0008] In addition, machine tools generally use multiple tools for various machining operations, and tool magazines or turrets are used as tool storage areas for storing multiple tools.

[0009] In addition, machine tools are generally equipped with an Automatic Tool Changer (ATC) for withdrawing or re-stacking a specific tool from a tool magazine by command from a numerical control unit to improve the productivity of the machine tool.

[0010] In addition, machine tools are generally equipped with an Automatic Palette Changer (APC) to minimize non-processing time. The APC automatically exchanges pallets between the workpiece processing area and the workpiece installation area. Workpieces can be loaded onto the pallets.

[0011] Furthermore, machine tools are generally classified into turning centers and machining centers based on the processing method. In general, in turning centers, the workpiece rotates, whereas in machining centers, the tool rotates to perform the processing of the workpiece.

[0012] Generally, a machine tool capable of performing various machining processes, such as turning, milling, drilling, tapping, and boring, in a single workpiece step is called a multi-task center (or integrated mill-turn center). Using such a multi-task center can not only reduce lead time, the number of parts, workload, and workspace but also improve productivity and precision.

[0013] A turning center, also called a double lathe, is a device that processes a workpiece by bringing a tool close while the workpiece mounted on the spindle is rotating rapidly.

[0014] In particular, the turning center may include a tailstock for fixedly supporting the free end of a workpiece.

[0015] In addition, turning centers such as lathes maintain machining precision by using vibration dampeners when processing workpieces such as long axes, thereby dampening the workpiece's vibration.

[0016] As shown in FIGS. 1 and 2, a machine tool (1), such as a conventional turning center, has a bed (2) installed on the ground or base.

[0017] A guideway (3) is installed along the horizontal direction of the bed. Additionally, a spindle (4) is installed on one side of the bed (2), and a workpiece is clamped to the spindle through a chuck or the like that is rotatably mounted on the spindle.

[0018] In addition, a tailstock is installed to allow movement along a guideway, and machining is performed while the tip of a workpiece, which is clamped in a cantilevered manner in the chuck by the tailstock, is supported by the tailstock.

[0019] However, in the case of workpieces with a relatively long axis, even when machining is performed by supporting one side of the workpiece with a tailstock while the workpiece is clamped in the spindle chuck, machining precision decreases as the workpiece rotates at high speed, and in severe cases, an accident in which the workpiece falls may occur.

[0020] To prevent this, as needed, a dustproof device (6) is installed to move along the guideway (3) of the bed as shown in FIGS. 1 and 2, thereby additionally supporting the workpiece to improve processing precision and prevent the workpiece from falling, thereby preventing safety accidents and preventing damage to the workpiece, tool, or equipment.

[0021] While this does not pose a problem when such a vibration damper is installed on the guideway of the machine tool bed from the beginning, in cases where a vibration damper needs to be additionally installed on-site (field retrofit) after the machine tool has already been installed with only the tailstock shipped to the site, field retrofitting is relatively easy in the case of LM guideways, whereas in the case of box guideways, there was a problem of incurring significant costs and time during installation due to interference between equipment.

[0022] In other words, unlike LM guideways, box guideways face limitations such as space requirements for sliding movement with the transfer body and space constraints for installing the guide section. Consequently, when a box guideway is placed on the bed and a transfer body is already installed on it, installing an additional transfer body increases installation time and cost, causes inconvenience to the operator, increases maintenance costs and time due to equipment damage, and reduces productivity due to increased non-processing time.

[0023] In particular, in order to install an additional transfer body (6) which is an additional transfer body while the existing transfer body (tailstock, 5) which is an existing transfer body is installed on the box guideway (3) as shown in FIG. 1, the distance (8) between the box guideway and the spindle chuck must be longer than the horizontal length (7) of the additional transfer body (6) so that the additional transfer body can be seated on the box guideway and moved.

[0024] Consequently, as the length of the box guideway was shortened, the machining area was reduced, making machining expansion impossible. In some cases, on-site installation was also impossible, leading to problems that limited the reliability and expandability of the machine tool.

[0025] In addition, as shown in FIG. 2, the additional transfer body installation device of a conventional machine tool had a problem in that a lot of time and cost were consumed in the installation and assembly of the additional transfer body when the horizontal length of the additional transfer body, the anti-vibration member, was longer than the distance between the box guideway and the chuck of the spindle, as the cover of the machine tool had to be disassembled to separate the transfer body, the tailstock (5), which is already installed on the box guideway, from the box guideway (3), and then the additional transfer body, the anti-vibration member (6), was installed by seating it on the box guideway while the transfer body, the tailstock (5), was separated from the box guideway, and then the tailstock and cover, etc., had to be assembled in the reverse order.

[0026] Furthermore, conventional additional feed body installation devices for machine tools had problems such as equipment damage or breakage due to the need to separate components like the tailstock for assembly and installation, which increased maintenance costs and time, caused inconvenience to workers, and led to consumer dissatisfaction. Prior art literature

[0028] Korean Patent Publication No. 10-2004-0054402 Korean Patent Publication No. 10-2013-0073157 Korean Patent Publication No. 10-2015-0071979 The problem to be solved

[0029] The present invention aims to solve the aforementioned problems. The objective of the present invention is to provide an additional transfer body installation device for a machine tool that allows for the rapid and convenient additional installation or removal of an additional transfer body on a box guideway without separating the existing transfer body already installed on the box guideway, by simply rotating the shaft portion of a coupling unit installed on the additional transfer body in the forward or reverse direction at a predetermined angle, thereby reducing the installation cost and time of the additional transfer body, preventing damage or breakage of the equipment to reduce maintenance costs and time, increasing machinability by expanding the transfer distance between the transfer body and the additional transfer body, improving productivity by reducing non-machining time, and enhancing operator convenience and satisfaction. means of solving the problem

[0031] To achieve the objective of the present invention, the additional transfer body installation device of the machine tool according to the present invention may include: a box guideway disposed in a structure; a transfer body installed to be movable along the box guideway; an additional transfer body additionally installed while the transfer body is installed on the box guideway and moving along the box guideway; and a coupling unit having a seating portion and installed on the additional transfer body to detachably connect the additional transfer body to the box guideway.

[0032] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the coupling unit of the additional transfer body installation device of the machine tool can additionally install or remove the additional transfer body on the box guideway in which the transfer body is already installed without separating the transfer body already installed on the box guideway, simply by the operation of the seating portion rotating forward or backward at a predetermined angle.

[0033] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the seating portion of the coupling unit of the additional transfer body installation device of the machine tool may be formed such that the first direction length and the second direction length of the seating portion are different.

[0034] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the second direction length of the seating portion of the coupling unit of the additional transfer body installation device of the machine tool may be formed to be smaller than the second direction length of the box guideway in the state before the additional transfer body is seated on the box guideway and the seating portion is rotated, and the first direction length of the seating portion may be formed to be larger than the second direction length of the box guideway in the state where the additional transfer body is seated on the box guideway and the seating portion is rotated.

[0035] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the coupling unit of the additional transfer body installation device of the machine tool comprises: a shaft portion having one side inserted and disposed at the lower part of the base portion of the additional transfer body; and a fastening portion that rotatably fastens the shaft portion to the base portion; and the seating portion may be coupled and installed at the lower end of the shaft portion so as to rotate in conjunction with the rotation of the shaft portion.

[0036] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the coupling unit of the additional transfer body installation device of the machine tool may further include a blocking part that blocks the rotation of the seating part while the additional transfer body is installed on the box guideway.

[0037] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the coupling unit of the additional transfer body installation device of the machine tool may further include a clamping part that unclamps the seating part to the box guideway when the additional transfer body moves along the box guideway, and clamps the seating part to the box guideway when the additional transfer body does not move along the box guideway.

[0038] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the seating portion of the coupling unit of the additional transfer body installation device of the machine tool may include: a main body portion; a groove portion formed by being recessed in a first direction on the upper part of the main body portion; and a receiving portion formed by being recessed in the lower part of the main body portion.

[0039] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the clamping part of the coupling unit of the additional transfer body installation device of the machine tool may include a chamber part formed by being embedded in the base part; and a cylinder part that moves up and down through pressure flowing into or out of the chamber part.

[0040] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the shaft portion of the coupling unit of the additional transfer body installation device of the machine tool may include: a post installed through the cylinder portion to move up and down in conjunction with the up and down movement of the cylinder portion and to be rotatable with respect to the base portion; a head portion formed at the top of the post for the rotation of the shaft portion; and a flange portion formed extending along the circumferential direction at the bottom of the post and received in the receiving portion.

[0041] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the blocking portion of the coupling unit of the additional transfer body installation device of the machine tool may be formed to extend in a first direction while facing each other in a second direction on a wiper bracket that is detachably coupled to the base portion of the additional transfer body.

[0042] In addition, in another preferred embodiment of the additional transfer body installation device of the machine tool according to the present invention, the transfer body of the additional transfer body installation device of the machine tool is a tailstock, and the additional transfer body may be a vibration damper. Effects of the invention

[0044] The additional transfer body installation device of the machine tool according to the present invention has the effect of reducing the cost and time for installing the additional transfer body, as well as reducing the assembly and installation time during field retrofit, thereby increasing the expandability, reliability, and stability of the machine tool. This is achieved by simply rotating the shaft portion of the coupling unit installed on the additional transfer body in the forward or reverse direction at a predetermined angle, thereby enabling the additional transfer body to be quickly and easily installed or removed from the box guideway where the existing transfer body is installed without separating it.

[0045] In addition, the additional transfer body installation device for a machine tool according to the present invention has the effect of preventing damage or breakage to the equipment during the installation or removal of the additional transfer body, thereby reducing maintenance costs and time and increasing the durability of the machine tool.

[0046] Furthermore, the additional transfer body installation device of the machine tool according to the present invention has the effect of increasing machinability and improving machining precision by expanding the transfer distance between the transfer body and the additional transfer body, as the additional transfer body can be easily installed or removed even when the box guideway is extended adjacent to the spindle.

[0047] Furthermore, the additional transfer body installation device of the machine tool according to the present invention has the effect of improving productivity by reducing non-processing time and maximizing the convenience and satisfaction of the operator. Brief explanation of the drawing

[0049] FIG. 1 shows a conceptual diagram according to one embodiment of an additional transfer body installation device of a conventional machine tool. FIG. 2 shows a conceptual diagram according to another embodiment of an additional transfer body installation device of a conventional machine tool. FIG. 3 shows an exploded view of an additional transfer body and a coupling unit of an additional transfer body installation device of a machine tool according to one embodiment of the present invention. FIG. 4 shows a conceptual diagram of the state before the additional transfer body is seated on the box guideway, with the additional transfer body installation device of a machine tool according to one embodiment of the present invention installed on the additional transfer body. FIG. 5 shows a conceptual diagram of an additional transfer body installed on an additional transfer body according to an embodiment of the present invention, with the additional transfer body seated on a box guideway. FIG. 6 shows a conceptual diagram of a state in which the clamping part is unclamped while the additional transfer body installation device of a machine tool according to one embodiment of the present invention is installed on the additional transfer body and the additional transfer body is seated on the box guideway. FIG. 7 shows a conceptual diagram of a clamping part in a state where the additional transfer body installation device of a machine tool according to one embodiment of the present invention is installed on the additional transfer body and the additional transfer body is seated and installed on the box guideway. Figure 8 shows an enlarged view of part B of Figure 6. Figure 9 shows an enlarged view of section D of Figure 7. Specific details for implementing the invention

[0050] Hereinafter, an additional transfer body installation device for a machine tool according to an embodiment of the present invention will be described in detail with reference to the drawings. The embodiments introduced below are provided as examples to ensure that the concept of the present invention is sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. Also, in the drawings, the size and thickness of the device, etc., may be exaggerated for convenience. Throughout the specification, the same reference numerals indicate the same components.

[0051] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail 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. These embodiments are provided merely to ensure that the disclosure of the present invention is 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. Throughout the specification, the same reference numerals refer to the same components. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity of description.

[0052] The terms used herein are for describing embodiments and are therefore not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, "comprise" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned components, steps, actions, and / or elements.

[0053] FIG. 3 shows an exploded perspective view of an additional transfer body and a coupling unit of an additional transfer body installation device for a machine tool according to an embodiment of the present invention. FIG. 4 shows a conceptual diagram of the state before the additional transfer body is seated on the box guideway while the additional transfer body installation device for a machine tool according to an embodiment of the present invention is installed on the additional transfer body. FIG. 5 shows a conceptual diagram of the state in which the additional transfer body is seated on the box guideway while the additional transfer body installation device for a machine tool according to an embodiment of the present invention is installed on the additional transfer body. FIG. 6 shows a conceptual diagram of the state in which the clamping part is unclamped while the additional transfer body is seated on the box guideway while the additional transfer body installation device for a machine tool according to an embodiment of the present invention is installed on the additional transfer body. FIG. 7 shows a conceptual diagram of the state in which the clamping part is clamped while the additional transfer body is seated on the box guideway while the additional transfer body installation device for a machine tool according to an embodiment of the present invention is installed on the additional transfer body. FIG. 8 shows an enlarged view of section B in FIG. 6. FIG. 9 shows an enlarged view of section D in FIG. 7.

[0054] The definitions of terms used below are as follows. "First direction" refers to the horizontal direction within the same member, i.e., the horizontal direction in the X-axis direction in FIGS. 1 to 9; "Second direction" refers to the vertical direction within the same member that is orthogonal to the first direction, i.e., the vertical direction in the Y-axis direction in FIGS. 1 to 9; and "Third direction" refers to the vertical direction within the same member that is orthogonal to the first and second directions, i.e., the height direction in the Z-axis direction in FIGS. 1 to 9. Additionally, "Upward (Upper)" refers to the upward direction in the "height direction," the direction facing upward in the Z-axis direction in FIGS. 1 to 9; and "Downward (Lower)" refers to the downward direction in the "height direction," the direction facing downward in the Z-axis direction in FIGS. 1 to 9. Additionally, "Inner side" refers to the side relatively closer to the center within the same member, i.e., the inside; and "Outer side" refers to the side relatively farther from the center within the same member, i.e., the outside.

[0055] Referring to FIGS. 3 to 9, an additional transfer body installation device for a machine tool according to the present invention will be described. As shown in FIGS. 3 to 9, the additional transfer body installation device for a machine tool according to the present invention includes a box guideway (200), a transfer body (300), an additional transfer body (400), and a coupling unit (500).

[0056] A box guideway (200) is placed on a structure (100). This structure (100) can be a component of various equipment of a machine tool, such as a bed installed on the ground or base, or a column, saddle, or cross rail movably installed on the bed.

[0057] That is, the structure can be various types of beds, columns, saddles, cross rails, etc., for the relative movement and machining of machine tool equipment. However, in FIGS. 3 to 9, the explanation is based on the bed.

[0058] In addition, these box guideways are arranged in a line on the structure. That is, in FIGS. 3 to 9, the box guideways are arranged horizontally parallel to the bed.

[0059] The transfer body (300) is installed to be movable along the box guideway (200).

[0060] In other words, the conveyor is installed in advance on the box guideway so that it can move back and forth in a straight line along the box guideway.

[0061] In FIGS. 3 to 9, the transfer body is made of a tailstock. However, according to one embodiment of the present invention, the transfer body is not necessarily limited to a tailstock and can be made of any one of the structures of any machine tool that moves in a straight reciprocating motion along other box guideways, such as a V-STAND.

[0062] An additional transfer body (400) is additionally installed while the transfer body is installed on the box guideway and moves along the box guideway.

[0063] In other words, the additional conveyor is installed after the conveyor is pre-installed on the box guideway, so that it can move back and forth in a straight line along the box guideway.

[0064] In FIGS. 3 to 9, the additional transfer body is made of a dustproof body.

[0065] Additionally, as illustrated in FIGS. 3 to 9, the additional transfer chain dustproof unit provides a space for installing a coupling unit, and the base part (410) coupled to the box guideway and the wiper bracket (420) detachably coupled to the lower part of the base part include a wiper coupled to the wiper bracket to wipe the box guideway part.

[0066] In addition, although not shown in the drawing, an upper base part having a drive unit of a dustproof device and a workpiece support unit arranged on the upper part of the base part can be coupled to the upper part of the base part.

[0067] However, according to one embodiment of the present invention, the additional transfer body is not necessarily limited to a dustproof member and can be composed of any one of the structures of any machine tool that moves in a straight reciprocating motion along other box guideways, such as a V-STAND.

[0068] The coupling unit (500) is provided with a seating portion (530). Additionally, the coupling unit (500) is installed on an additional transport body to detachably connect the additional transport body to the box guideway.

[0069] The coupling unit can additionally install or remove an additional transfer body on a box guideway in which a transfer body is already installed, without separating the transfer body already installed on the box guideway, by only rotating the seating portion forward or backward at a predetermined angle.

[0070] For example, by rotating the shaft part, which rotates in conjunction with the seating part, at a predetermined angle of 90 degrees in the forward or reverse direction while the additional transfer body with the coupling unit is seated on the box guideway where the transfer body is already installed, the additional transfer body can be quickly and easily installed or removed from the box guideway where the existing transfer body is installed without separating the existing transfer body already installed on the box guideway. This reduces the cost and time required for installing the additional transfer body, as well as the assembly and installation time during field retrofit, thereby increasing the expandability, reliability, and stability of the machine tool, and preventing damage or breakage of the equipment, thereby reducing maintenance costs and time and increasing the durability of the machine tool.

[0071] Although the drawing is based on a predetermined angle of 90 degrees, it is not necessarily limited to this, and such a predetermined angle is determined according to the shape of the seating portion and the box guideway.

[0072] As illustrated in FIGS. 3 to 9, the coupling unit (500) of the additional transfer body installation device of the machine tool according to the present invention includes a shaft portion (510), a fastening portion (520), a seating portion (530), a blocking portion (540), and / or a clamping portion (550).

[0073] One side of the shaft portion (510) is inserted and positioned at the lower part of the base portion (410) of the additional transfer body.

[0074] In addition, as illustrated in FIGS. 3 to 9, the shaft portion (510) of the coupling unit (500) of the additional transfer body installation device of the machine tool according to the present invention includes a post (511), a head portion (512), and a flange portion (512).

[0075] The post (511) moves up and down in conjunction with the up and down movement of the cylinder part of the clamping part and is installed through the cylinder part so as to be rotatable relative to the base part. Preferably, the post is formed in the shape of a metal rod that is long in the circumferential direction.

[0076] The head portion (512) is formed at the top of the post to allow rotation of the shaft portion. That is, the head portion is formed to be stepped inward in the circumferential direction from the top of the shaft portion or to have a predetermined shape so that it can be easily rotated using a tool such as a wrench.

[0077] The flange portion (513) is formed to extend along the circumferential direction at the bottom of the post and is received in the receiving portion of the seating portion.

[0078] The fastening part (520) rotatably fastens the shaft part to the base part. This fastening part (520) is formed with a bolt or rivet, etc., to rotatably fasten the shaft part to the base part.

[0079] The mounting portion (530) is installed at the bottom of the shaft portion so as to rotate in conjunction with the rotation of the shaft portion.

[0080] For example, the seating portion is inserted and coupled through the shaft portion so that the flange portion is received in the receiving portion of the seating portion, and when the head portion is rotated in a predetermined angle of 90 degrees with a wrench or the like, the seating portion also rotates in the same direction.

[0081] Accordingly, when the shaft part rotates clockwise at a predetermined angle of 90 degrees, the seating part also rotates clockwise at a predetermined angle of 90 degrees, and when the shaft part rotates counterclockwise at a predetermined angle of 90 degrees, the seating part also rotates counterclockwise at a predetermined angle of 90 degrees, so that they are installed together at the bottom of the shaft part.

[0082] In addition, the first direction length and the second direction length of the seating portion are formed differently.

[0083] That is, the second directional length (H) of the seating portion is formed to be smaller than the second directional length (W) of the box guideway in the state before the additional transfer body is seated on the box guideway and the seating portion is rotated (see FIGS. 4 and 5), and the first directional length (L) of the seating portion is formed to be larger than the first directional length (W) of the box guideway in the state where the additional transfer body is seated on the box guideway and the seating portion is rotated (see FIGS. 6, 8, 7, and 9).

[0084] Specifically, as illustrated in FIGS. 4 and 5, the second direction length (H) of the main body of the seating portion described below is formed to be smaller than the second direction length (W) of the box guideway in the state before the additional transfer body is seated on the box guideway and the main body of the seating portion is rotated.

[0085] Additionally, specifically as illustrated in FIGS. 6, 8, 7, and 9, the first directional length (L) of the main body of the seating portion is formed to be larger than the second directional length (W) of the box guideway when the additional transfer body is seated on the box guideway and the main body of the seating portion is rotated.

[0086] Accordingly, the shaft part is rotated and the mounting part is coupled so that it can rotate simultaneously in conjunction with the shaft part, so that the main body part rotates forward or backward at a predetermined angle of 90 degrees in conjunction with the shaft part, thereby allowing for the rapid and smooth installation or removal of an additional transfer body on a box guideway where the transfer body is already installed, without separating the transfer body already installed on the box guideway.

[0087] Additionally, as illustrated in FIGS. 3 to 9, the seating portion (530) of the coupling unit (500) of the additional transfer body installation device of the machine tool according to the present invention includes a main body portion (531), a groove portion (532), and a receiving portion (533).

[0088] The main body (531) is formed by roughly forming a rectangular prism shape to form the outer shape of the seating portion.

[0089] The groove portion (532) is formed by being recessed in the upper part of the main body in the first direction. When the groove portion is formed by being recessed in the upper part of the main body in the first direction and the shaft portion rises, causing the main body to rise simultaneously in the third direction (height direction), the protruding part of the base portion is fitted complementarily to the groove portion to prevent the main body from detaching.

[0090] The receiving portion (533) is formed by being recessed into the lower part of the main body. When the receiving portion is formed by being recessed into the lower part of the main body and a through hole is formed to penetrate the shaft portion and the seating portion is installed, the flange portion of the shaft portion is received in the receiving portion, and the seating portion is coupled complementarily to the post, and at the same time, the seating portion rotates in the same direction in conjunction with the rotation of the shaft portion.

[0091] The blocking part (540) blocks the rotation of the seating part while the additional transfer body is installed on the box guideway.

[0092] That is, the blocking part prevents the additional transfer body from rotating further after the shaft part is rotated to a predetermined angle of 90 degrees while the additional transfer body is seated on the box guideway and the seated part is rotated to a predetermined angle of 90 degrees in the same direction as the shaft part.

[0093] In addition, the blocking part is formed to extend in the first direction while facing each other in the second direction on a wiper bracket that is detachably coupled to the base part of an additional transfer body.

[0094] Specifically, as illustrated in FIG. 3, the blocking members are spaced apart from each other in the vertical direction from the wiper bracket and formed to protrude adjacent to the seating member in the horizontal direction. When the seating member rotates to a predetermined angle of 90 degrees while the additional transfer body is seated on the box guideway, the blocking members of the seating member and the wiper bracket are adjacent to each other, thereby blocking the rotation of the seating member through contact with the seating member.

[0095] In addition, although not shown in the drawing, the blocking part is formed in the shape of a plate having a cavity in the center, so that the head of the shaft part is inserted into the cavity to block the rotation of the head part and consequently block the rotation of the seating part.

[0096] That is, a groove is formed in the center of the plate portion to have a shape corresponding to the shape of the head portion, which is formed in a certain shape on the upper part of the post to be combined with a spanner, and the groove is inserted into the head portion of the post and the plate is formed so that it is in close contact with the receiving groove, thereby blocking the rotation of the shaft portion.

[0097] The clamping part (450) unclamps the seating part to the box guideway when the additional transfer body moves along the box guideway, and clamps the seating part to the box guideway when the additional transfer body does not move along the box guideway.

[0098] In addition, as illustrated in FIGS. 3 to 9, the clamping part (550) of the coupling unit (500) of the additional transfer body installation device of the machine tool according to the present invention includes a chamber part (551) and a cylinder part (552).

[0099] The chamber portion (551) is formed by being recessed into the base portion. That is, the chamber portion is formed by being recessed into the base portion along the third direction, the height direction, and is provided with a through hole in the center so that the shaft portion can be positioned through it.

[0100] The cylinder section (552) moves up and down through pressure flowing into or out of the chamber section. That is, the cylinder section moves up and down along the height direction within the chamber section by pressure flowing into or out of the chamber section.

[0101] Specifically, as shown in FIGS. 7 and 9, a post of the shaft portion is inserted and installed through the chamber portion and the cylinder portion, and the post and the cylinder portion are complementarily coupled so that when pressure such as hydraulic or pneumatic pressure is introduced into the chamber portion, the cylinder portion rises along the height direction inside the chamber portion by the pneumatic or hydraulic pressure.

[0102] Accordingly, the shaft section rises in conjunction, and finally, the main body of the mounting section rises so that the upper part of the main body and the lower part of the box guideway come into close contact, thereby clamping the mounting section to the box guideway and restricting the movement of additional transport bodies.

[0103] As shown in FIGS. 6 and 8, a post of the shaft portion is inserted and installed through the chamber portion and the cylinder portion, and the post and the cylinder portion are complementarily coupled so that when pressure such as hydraulic or pneumatic pressure flows from inside the chamber portion to the outside, the cylinder portion descends along the height direction inside the chamber portion due to its own weight.

[0104] Accordingly, the shaft section descends in conjunction, and finally, the main body of the mounting section descends, causing the upper part of the main body and the lower part of the box guideway to separate from each other. As the mounting section is unclamped to the box guideway, the additional transfer body becomes able to move along the box guideway.

[0105] In other words, the clamping unit performs the function of unclamping the additional transfer body to the box guideway when the additional transfer body is transferred, and clamping the additional transfer body to the box guideway when the additional transfer body supports the workpiece, etc., during workpiece processing.

[0106] Referring to FIGS. 3 to 9, the operating principle is explained in which an additional transfer body is installed and assembled on-site (field retrofit) while the transfer body is already installed on the box guideway, the additional transfer body is unclamped to move along the box guideway, and is clamped during workpiece processing.

[0107] As shown in Fig. 4, with the transfer body already installed in the box guideway, the rotational state of the shaft part (rotational state of the seating part) is checked so that the vertical length of the seating part of the additional transfer body's coupling unit is smaller than the vertical length of the box guideway.

[0108] If the position is such that the vertical length of the seating portion is smaller than the vertical length of the box guideway, an additional transfer body is seated on the box guideway as shown in Fig. 5.

[0109] Afterwards, as shown in FIGS. 6 and 8, the head portion of the shaft portion is rotated clockwise (A) manually or automatically using a tool such as a spanner or a rotary device such as a servo motor, so that the horizontal length of the seating portion becomes greater than the vertical length of the box guideway, and the additional transfer body is easily installed without being dislodged from the box guideway.

[0110] With the mounting portion rotated 90 degrees clockwise, the wiper bracket with the blocking portion formed is attached and installed to the base portion.

[0111] That is, when a wiper bracket with a blocking portion formed on the base is installed, if the seating portion rotates further in a counterclockwise or clockwise direction, the seating portion is contacted by a blocking portion formed extending inwardly in the horizontal direction so as to face each other along the vertical direction of the wiper bracket, thereby restricting the rotation.

[0112] In this way, when an additional transport body is placed on the box guideway and the blocking part is connected while the placing part is rotated 90 degrees clockwise, the rotation of the placing part is blocked, so that the additional transport body is easily and quickly prevented from detaching from the box guideway.

[0113] Subsequently, as illustrated in FIGS. 6 and 8, when an additional transfer body is installed on a box guideway and needs to be transferred, hydraulic or pneumatic pressure is not introduced into the chamber section through operation of a control unit, etc., so that the cylinder section descends due to its own weight, and the shaft section also maintains a lowered state in conjunction with the descent of the cylinder section.

[0114] In addition, the seating portion ultimately maintains a lowered state in conjunction with the lowering of the shaft portion, so that the seating portion and the box guideway do not come into contact, thereby maintaining an unclamped state.

[0115] In this state, the additional conveyor moves back and forth in a straight line along the box guideway.

[0116] As shown in FIGS. 7 and 9, the head portion of the shaft portion is rotated clockwise (A) manually or automatically using a tool such as a spanner or a rotary device such as a servo motor, so that the horizontal length of the seating portion becomes greater than the vertical length of the box guideway, thereby allowing the additional transfer body to be easily installed without being dislodged from the box guideway.

[0117] In cases where an additional transfer body is installed on a box guideway and must remain fixed without moving, such as during workpiece processing, hydraulic or pneumatic pressure is introduced into the chamber through the operation of a control unit, and the cylinder maintains a raised state due to the pressure.

[0118] In other words, when the cylinder section moves upward in the height direction, the shaft section also rises in conjunction with the rise of the cylinder section. Furthermore, the seating section ultimately maintains a raised state in conjunction with the rise of the shaft section, so that the main body of the seating section contacts the box guideway, and the protruding part of the base section is received in the groove section, thereby stably clamping the additional transfer body to the box guideway.

[0119] Thus, the additional transfer body installation device of the machine tool according to the present invention enables the additional transfer body to be quickly and easily installed or removed from the box guideway where the existing transfer body is installed, without separating the existing transfer body already installed in the box guideway, by simply rotating the shaft part of the coupling unit installed on the additional transfer body in the forward or reverse direction at a predetermined angle of 90 degrees, or by rotating the seating part that rotates in conjunction with the shaft part. This reduces the cost and time required for installing the additional transfer body, as well as the assembly and installation time during field retrofit, thereby increasing the expandability, reliability, and stability of the machine tool. Furthermore, it prevents damage or breakage of the equipment during the installation or removal of the additional transfer body, thereby reducing maintenance costs and time and increasing the durability of the machine tool.

[0120] In addition, the additional transfer body installation device of the machine tool according to the present invention facilitates the installation or removal of the additional transfer body even when the box guideway is extended adjacent to the spindle, thereby increasing machinability and improving machining precision by expanding the transfer distance between the transfer body and the additional transfer body, improving productivity by reducing non-machining time, maximizing operator convenience and satisfaction, enabling the additional transfer body to be installed simply and quickly on a box guideway already equipped with a transfer body through simple operation, and maximizing space utilization and reducing manufacturing costs by miniaturizing the additional transfer body.

[0121] Although the detailed description of the present invention described above has been explained with reference to preferred embodiments of the invention, those skilled in the art or those with ordinary knowledge in the relevant technical field will understand that various modifications and changes can be made to the present invention without departing from the spirit and technical scope of the invention as set forth 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 determined by the claims. Explanation of the symbols

[0123] 100 : Structure 200 : Box Guideway 300 : Transfer body 400 : Additional transfer body 500 : Combination unit 510: Shaft section 520 : Fastening part 530 : Seating part 540 : Blocking section 550 : Clamping part

Claims

Claim 1 A machine tool additional transfer body installation device characterized by comprising: a box guideway disposed on a structure; a transfer body installed to be movable along the box guideway; an additional transfer body additionally installed while the transfer body is installed on the box guideway to move along the box guideway; and a coupling unit having a seating portion and installed on the additional transfer body to detachably connect the additional transfer body to the box guideway. Claim 2 An additional transfer body installation device for a machine tool, characterized in that, in claim 1, the coupling unit can additionally install or remove the additional transfer body on the box guideway in which the transfer body is already installed without separating the transfer body already installed on the box guideway, solely by the operation of the seating portion rotating forward or backward at a predetermined angle. Claim 3 An additional transfer body installation device for a machine tool, characterized in that, in paragraph 2, the seating portion is formed such that the first direction length and the second direction length of the seating portion are different. Claim 4 A device for installing an additional transfer body of a machine tool, characterized in that, in paragraph 3, the second direction length of the seating portion is formed to be smaller than the second direction length of the box guideway in the state before the additional transfer body is seated on the box guideway and the seating portion is rotated, and the first direction length of the seating portion is formed to be larger than the second direction length of the box guideway in the state where the additional transfer body is seated on the box guideway and the seating portion is rotated. Claim 5 In paragraph 2, the coupling unit comprises: a shaft portion, one side of which is inserted and disposed at the lower part of the base portion of the additional transfer body; and a fastening portion that rotatably fastens the shaft portion to the base portion; wherein the seating portion is coupled and installed at the lower end of the shaft portion so as to rotate in conjunction with the rotation of the shaft portion, characterized in that it is an additional transfer body installation device for a machine tool. Claim 6 An additional transfer body installation device for a machine tool, characterized in that, in claim 5, the coupling unit further includes a blocking part that blocks rotation of the seating part while the additional transfer body is installed on the box guideway. Claim 7 An additional transfer body installation device for a machine tool, characterized in that, in claim 5, the coupling unit further includes a clamping part that unclamps the seating part to the box guideway when the additional transfer body moves along the box guideway, and clamps the seating part to the box guideway when the additional transfer body does not move along the box guideway. Claim 8 An additional transfer body installation device for a machine tool, characterized in that, in claim 6 or 7, the seating portion comprises: a main body portion; a groove portion formed by being recessed in a first direction on the upper part of the main body portion; and a receiving portion formed by being recessed in the lower part of the main body portion. Claim 9 An additional transfer body installation device for a machine tool, characterized in that, in claim 8, the clamping part comprises: a chamber part formed by being embedded in the base part; and a cylinder part that moves up and down through pressure flowing into or out of the chamber part. Claim 10 An additional transfer body installation device for a machine tool, characterized in that, in claim 9, the shaft portion comprises: a post installed through the cylinder portion to move up and down in conjunction with the up and down movement of the cylinder portion and to be rotatable relative to the base portion; a head portion formed at the top of the post for rotation of the shaft portion; and a flange portion formed extending along the circumferential direction at the bottom of the post and received in the receiving portion. Claim 11 A machine tool additional transfer body installation device according to claim 6, characterized in that the blocking part is formed to extend in a first direction while facing each other in a second direction on a wiper bracket that is detachably coupled to the base part of the additional transfer body. Claim 12 An additional transfer body installation device for a machine tool, characterized in that, in any one of claims 1 to 7, the transfer body is a tailstock and the additional transfer body is a vibration damper.

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