JP4710467B2 - Machine Tools - Google Patents

Description

  The present invention relates to a machine tool, and more particularly, to a machine tool including a cover that surrounds and protects a machine body that processes a workpiece.

  2. Description of the Related Art Conventionally, a machining center, which is a machine tool, has a machine body that processes a workpiece (workpiece), and surroundings of the machine body, and splashes and chips of cutting fluid scattered from the machine body are scattered around the outside. And a splash cover to prevent this. An operation panel for controlling the machining operation by the machine body is provided on the front surface (user facing side) of the splash cover. The operation panel is connected to a control device provided behind the splash cover via a lead wire. For example, an operation condition input from the operation panel is converted into an input signal and input to the control device via a lead wire. Further, processing is performed by the control device based on the input signal, and the processed content is converted into a control signal and output to each servo motor and various devices.

  On the other hand, a lead wire connected to such an operation panel or a lead wire connected to various devices of the machine main body has a splash cover in order to prevent cutting fluid and chips from adhering to the surface of the lead wire. It is preferable to be pulled out to the outside and routed to a predetermined position (for example, a control device). However, when these various lead wires are exposed to the outside of the splash cover, the appearance of the entire machining center is deteriorated. In general, the lead wire pulled out of the splash cover is fixed to a plurality of hooks on the side surface of the splash cover and hooked to the hook to be routed to a predetermined position. There is a problem in that it looks worse when loosened with the hook.

Therefore, in order to hide such lead wires, for example, between the operation panel provided in front of the machine tool and the jig provided in the rear of the machine tool, on the upper side of the inner surface of the cover provided in the machine tool. 2. Description of the Related Art A wiring piping structure for a machine tool is known in which a passage bridge is fixed to a passage bridge and wiring piping is installed on the passage bridge (see, for example, Patent Document 1). In this wiring and piping structure, since the passage bridge that holds the wiring piping is routed in the upper part inside the cover, the wiring piping cannot be seen from the outside, and the appearance of the machine tool does not deteriorate. Furthermore, since the shape of the passage bridge is formed in a shelf shape or a duct shape (cylindrical shape), the wiring piping does not loosen, and the wiring piping does not slip or fall from the passage bridge.
Japanese Utility Model Publication No. 5-72335

  However, in the wiring piping structure of the machine tool described in Patent Document 1, the passage bridge is fixed to the upper part of the inner side surface of the cover even though the upper surface of the cover is open. There was a problem that the cutting fluid and chips to be adhered to the wiring piping in the shelf-like passage bridge provided at the upper part of the cover. In addition, since the passage bridge is provided on the upper portion of the cover, there is a problem in that when the work is performed on the upper portion of the cover, the passage bridge obstructs the work efficiency. Furthermore, when placing wiring piping on a shelf-shaped passage bridge, or when passing wiring piping through a tubular passage bridge, a ladder or the like must be used to climb up to the top of the cover. Therefore, there was a problem that work efficiency was bad.

  The present invention has been made in order to solve the above-described problems. A machine tool capable of maintaining the aesthetics by routing the wiring drawn out of the cover to the lower side of the cover and covering the wiring. The purpose is to provide.

To achieve the above object, a machine tool according to a first aspect of the present invention includes a base, a machine main body fixed to the upper portion of the base, for processing a workpiece, and fixed to the base, And a box-shaped cover for protecting the cover, wherein the cover protrudes laterally from the upper part of the base and is fixed to the outer surface of the bottom wall of the cover that protrudes outward from the upper part of the base. A hook-shaped protective member that is placed on the inside to protect the wiring that is drawn out from the inside of the cover toward the outside and is routed along the outside surface of the bottom wall is fixed ; The wall is provided with an outlet for pulling out the wiring from the inside to the outside of the cover, and the wiring is pulled out from the outlet and bent at a portion along the outer surface of the bottom wall. To the outlet A closing plate to which a flexible member for closing a gap between the outlet and the wiring is fixed so as to cover the bent portion of the wiring drawn out from the outlet from the outside of the cover. It is attached .

  Further, in the machine tool according to claim 2, in addition to the configuration of the invention according to claim 1, the protection member is fixed to the base side of the outer surface of the bottom wall.

  Further, in the machine tool according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, the protection member is provided with a fixing portion for fixing the wiring to the protection member.

According to a fourth aspect of the present invention, in addition to the configuration of the invention according to any one of the first to third aspects, the protective member is hidden in the lower front portion of the cover when the cover is viewed from the front. A decorative board extending downward is provided.

In addition to the configuration of the invention according to any one of claims 1 to 4 , the machine tool according to claim 5 discharges cutting fluid and chips accumulated inside to the bottom surface of the protective member. A discharge hole is provided.

In the machine tool according to the first aspect, since the protective member is formed in a bowl shape, the wiring can be installed inside the protective member by a simple operation of placing the wiring inside the protective member. Furthermore, since the protective member is routed along the outer surface of the bottom wall of the cover that protrudes outward from the upper part of the base, the protective member is not conspicuous, and it is possible to prevent the aesthetics of the entire machine tool from being impaired. In addition, since the wiring is routed along the outer surface of the bottom wall instead of the upper portion of the cover, the routing work is facilitated. Furthermore, since the protective member may be fixed to the outer surface of the bottom wall of the cover, it is not necessary to use a ladder or the like, and the protective member can be easily attached. Further, the wiring can be drawn out from the inside of the cover to the outside through the outlet provided in the bottom wall of the cover. Furthermore, since the gap between the outlet and the wiring is blocked by the flexible member, it is possible to prevent the mist-like cutting fluid contained in the atmosphere in the factory from entering the inside through the gap of the outlet.

  Further, in the machine tool according to claim 2, in addition to the effect of the invention according to claim 1, the protective member is fixed to the base side of the outer side surface of the bottom wall of the cover. Since the part opposite to the base side of the wall becomes a scissors and the protective member is hidden, the aesthetics of the entire machine tool can be further maintained.

  Further, in the machine tool according to claim 3, in addition to the effect of the invention according to claim 1 or 2, since the wiring can be fixed to the protective member by the fixing portion, the wiring is detached from the protective member or shifted. Can be prevented.

In the machine tool according to claim 4 , in addition to the effect of the invention according to any one of claims 1 to 3 , the protective member fixed to the cover is hidden by the decorative plate when the machine tool is viewed from the front. The aesthetics of the entire machine tool are not impaired. Furthermore, since the cutting fluid adhering to the front surface of the cover falls downward along the decorative plate from the front surface of the cover, it is possible to prevent the cutting fluid from adhering to the protective member along the outer surface of the bottom wall from the front surface of the cover.

Further, in the machine tool according to claim 5 , in addition to the effect of the invention according to any one of claims 1 to 4 , for example, in the atmosphere in the factory, even when the cutting fluid is accumulated inside the protective member, It can be discharged outside by a discharge hole provided in the bottom surface of the protection member.

  Hereinafter, a machining center 1 according to a first embodiment of the present invention will be described with reference to the drawings. 1 is a front view of the machining center 1, FIG. 2 is a right side view of the machining center 1, FIG. 3 is a perspective view of the machining center 1 as viewed obliquely from the lower right, and FIG. 4 is a perspective view of FIG. FIG. 5 is a partially enlarged perspective view of the right bottom wall 3e and the periphery of the splash cover 3 shown in FIG. 5 (the lid cover 30, the closing plate 40, and the lead wire 60 are omitted), FIG. 5 is a perspective view of the lid cover 30, and FIG. 7 is a perspective view of the closing plate 40, FIG. 7 is a partially enlarged perspective view of the splash cover 3 shown in FIG. 3 around the right bottom wall 3e (the closing plate 40 is omitted), and FIG. 8 is shown in FIG. FIG. 9 is a partially enlarged perspective view around the right bottom wall 3e of the splash cover 3, FIG. 9 is a cross-sectional view taken along line AA shown in FIG. 8, and FIG. 10 is an AA arrow shown in FIG. It is sectional drawing which shows the modification of the fixation structure of the lead wire 60 seen from the view direction cross section.

  In the following description, the X-axis direction refers to the left-right direction of the machining center 1, the Y-axis direction refers to the front-rear direction of the machining center 1, and the Z-axis direction refers to the up-down direction of the machining center 1. To do. Further, the front side of the drawing in FIG. 1 is the front side of the machining center 1, the depth side of the drawing is the rear side of the machining center 1, the front side of the drawing in FIG. 2 is the right side of the machining center 1, .

  1 to 3, the machining center 1 according to the present embodiment has a lead wire 60 drawn outward from an outlet 25 (see FIG. 7) provided in front of the right bottom wall 3e of the splash cover 3. As shown in FIG. Is characterized in that it is placed and fixed inside the heel cover 30 fixed to the right bottom wall 3e.

  First, a schematic configuration of the machining center 1 will be described. The machining center 1 shown in FIG. 1 moves a workpiece (not shown) and a tool (not shown) relative to each other to perform desired machining (for example, “boring”, “milling”, “hole”). This is a machine tool that performs “vacancy”, “cutting” and the like. The machining center 1 is composed of a machine main body for machining a workpiece and an iron base 2 that serves as a base of the machine main body. A box that protects a part of the machine main body by surrounding the upper portion of the base 2. A mold splash cover 3 is fixed.

  First, the base 2 will be described. As shown in FIGS. 1 and 2, the base 2 extends in parallel to the Y-axis direction of the machining center 1, and leg portions 2 a that can be adjusted in height are provided at the lower four corners of the base 2. Yes. And these four leg parts 2a are installed in floor surfaces, such as a factory, and the machining center 1 is installed in a predetermined place. Further, column seats 15 (only one is shown in FIG. 2), which are pedestals on which the columns 5 are placed, are provided in the vicinity of both corners on the upper rear side of the base 2. Although not shown, a table device provided with an XY table movable in the XY directions is provided on the upper portion of the base 2 so that a workpiece can be attached to and detached from the XY table. In addition, as shown in FIG. 3, the core part of the base 2 is what is called thinning (frame structure by the rib) for weight reduction, high intensity | strength, and cost reduction.

  Next, the machine body will be described. As shown in FIGS. 1 and 2, the machine body is provided on the upper portion of the base 2, and most of the machine body except the rear side of the column 5 is surrounded by the splash cover 3. This machine body is placed and fixed on the column seat 15 and is provided with a prismatic column 5 extending in the Z-axis direction and on the front side of the column 5 and can be moved up and down in the Z-axis direction. A main spindle head (not shown), a main spindle (not shown) rotatably supported on the lower portion of the main spindle head, a tool changer (not shown) for automatically changing a tool mounted on the main spindle, A tool magazine (not shown) which is provided in the tool changer and stores a large number of tools is mainly configured. And the upper surface of the XY table of the said table apparatus is located on the extension line | wire of the front-end | tip of a main axis | shaft. Further, during machining of the workpiece by the machine main body, the cutting fluid splashes and chips scatter from the periphery of the main shaft and on the XY table, but the table device and the machine main body are covered with the splash cover 3. Chips and cutting fluid are not scattered around the outside.

  Further, as shown in FIGS. 2 and 3, a control device 17 that controls the operation of the machining center 1 is provided behind the splash cover 3. The control device 17 is composed of a microcomputer, and is basically composed of a CPU, ROM, RAM, input interface, output interface, and the like. The control device 17 is connected to a lead wire 60 connected to an operation panel 10 to be described later and various lead wires (not shown) connected to various devices. Thereby, based on the input operation performed with the keyboard 8 of the operation panel 10 shown in FIG. 1, the input signal is input to the control device 17 via the lead wire 60 and processed by the control device 17. Then, a desired machining can be performed on the workpiece by giving a command from the control device 17 to a servo motor or various sensors provided in each device of the machine body.

  Next, the splash cover 3 will be described. As shown in FIGS. 1, 2, and 3, the splash cover 3 is formed in a box shape, and is fixed to the upper portion of the base 2 and the front side of the column 5. The splash cover 3 includes a front wall 3a, a right side wall 3b, a left side wall 3c, a top wall 3d, a right bottom wall 3e projecting diagonally to the right from the upper part of the base 2, and a diagonally left side from the upper part of the base 2. The left bottom wall 3f projecting in the direction and the back wall 3g projecting from the front surface of the column 5 to the left and right sides. As shown in FIGS. 2 and 3, a lead wire 60 drawn outward from the outlet 25 (see FIG. 7) of the splash cover 3 is housed and protected on the outer surface of the right bottom wall 3e. The cover 30 to be closed, and the closing plate 40 for closing the gap between the inner peripheral edge of the outlet 25 (see FIG. 7) and the outer peripheral surface of the lead wire 60 are fixed. In addition, since this collar cover 30 and the closing plate 40 are the features of the present invention, details thereof will be described later.

  Next, various structures provided on each side surface of the splash cover 3 will be described. First, the front wall 3a will be described. As shown in FIG. 1, an opening (not shown) having a rectangular shape when viewed from the front is provided at the front center of the splash cover 3, and a pair of left doors 6 that telescopically open and close the opening is provided in the opening. And a right door 7 are provided. A handle portion 7b is provided at a position slightly lower than the middle portion of the right end portion of the right door 7, and the left door 6 is also changed to the right door 7 by grasping the handle portion 7b and sliding the right door 7 in the left direction. Follow and move to the left. Then, the opening part of the front wall 3a is opened, and the work on and off the XY table is performed by the operator. Further, since glass windows 6a and 7a are respectively provided in the approximate centers of the left door 6 and the right door 7, the processing area inside the splash cover 3 can be visually recognized even during the processing of the workpiece by the machine body. It has become.

  Further, as shown in FIG. 1, an operation panel 10 having a substantially rectangular shape in front view for operating the machining center 1 is provided on the right side of the front wall 3a. A keyboard 8 having various keys such as an automatic operation key, a MIDI operation key, a manual operation key, a code input key, and a start key is provided on the front surface of the operation panel 10. A CRT display 9 for displaying the operation is provided. Then, one end of each of the three lead wires 60 is connected to the back surface of the operation panel 10. Further, the other end portions of the lead wires 60 are once routed inside the splash cover 3 and led out from a later-described outlet 25 formed in the front side of the right bottom wall 3e. The lead wire 60 drawn out from the outlet 25 is routed along the outer side surface of the right bottom wall 3 e and the right side surface of the column 5, and is connected to the control device 17. A method for routing the lead wire 60 will be described later. The lead wire 60 corresponds to “wiring”.

  Further, as shown in FIGS. 1 to 3, the base 2 side of the corner (ridgeline) where the outer surface of the front wall 3a contacts the outer surface of the right bottom wall 3e is the same as the outer surface of the front wall 3a. A decorative plate 20 having a triangular shape in front view and extending vertically downward from the corner portion in a plane is provided. Thereby, when the splash cover 3 is viewed from the front (see FIG. 1), the cover 30 and the closing plate 40 fixed to the outer surface of the right bottom wall 3e can be covered by the decorative plate 20. Thereby, the beauty of the splash cover 3 can be maintained. Furthermore, when the mist-like cutting fluid contained in the atmosphere in the factory adheres to the outer surface of the front wall 3a of the splash cover 3, the decorative plate 20 is transmitted from the front wall 3a to the right bottom wall 3e. So that it does not flow, it has a function as a guide plate for guiding it below the front wall 3a. Thereby, it is possible to prevent the cutting fluid from adhering to the heel cover 30 and the closing plate 40.

  Next, the right side wall 3b and the left side wall 3c will be described. As shown in FIGS. 2 and 3, an opening 12 having a substantially rectangular shape when viewed from the front is provided in the approximate center of the right side wall 3b, and a lid-like inspection hatch 13 is detachably attached to the opening 12. It has been. Then, the opening 12 is opened by grasping a pair of handles 13 a, 13 a provided on the inspection hatch 13 and removing the inspection hatch 13. Then, through the opened opening 12, maintenance and inspection of various devices of the machine main body and the table device are performed. Although not shown, the opening 12 and the inspection hatch 13 are also provided on the left side wall 3c, and various devices and table devices of the machine body can be provided from any wall surface of the right side wall 3b and the left side wall 3c. Maintenance inspection work can be performed.

  Next, the right bottom wall 3e and the left bottom wall 3f will be described. As shown in FIG. 1, the right bottom wall 3 e extends and extends obliquely upward to the right from the right end portion along the Y-axis direction of the upper portion of the base 2. On the other hand, the left bottom wall 3f extends from the left end portion along the Y-axis direction of the upper portion of the base 2 so as to protrude obliquely upward to the left. Thereby, since the bottom part of the splash cover 3 becomes a shape narrowed downward, for example, each of the inner surfaces of the right bottom wall 3e and the left bottom wall 3f is splashed with cutting fluid and chips scattered inside the splash cover 3. When it falls down, it flows along the inclination direction of each inner surface and falls on the base 2. The cutting fluid and chips that have flowed down on the base 2 are discharged to the outside along a discharge flow path formed on the base 2.

  Further, as shown in FIG. 4, an outlet 25 for drawing out the lead wire 60 connected to the operation panel 10 from the inside of the splash cover 3 to the outside of the base 2 on the front side of the right bottom wall 3 e is provided. Has been. Further, the upper and lower sides of the outlet 25 when the right bottom wall 3e is viewed from the front protrudes in a direction perpendicular to the outer surface of the right bottom wall 3e, and supports the closing plate 40 (see FIG. 6). A pair of cylindrical support pillars 22 and 22 are provided. A screw groove is formed inside the support column 22 and a fixing screw 29 (see FIG. 8) for fixing the closing plate 40 to the support column 22 is fitted. The right bottom wall 3e shown in FIG. 4 corresponds to “the outer surface of the bottom wall of the cover”.

  Next, the back wall 3g will be described. As shown in FIG. 4, a fixed angle 27 having an L-shaped cross section is fixed substantially horizontally by welding on the outer surface of the back wall 3g and in the vicinity of the lower portion of the right side surface of the column 5. This fixed angle 27 is fixed in a state where the inside of the L-shaped cross section is directed downward, and in the vicinity of both ends in the longitudinal direction of one piece projecting from the outer surface of the back wall 3g to the rear of the splash cover 3 in the vertical direction. The fixing holes 27a and 27a that pass therethrough are provided. A method for fixing the lead wire 60 to the fixed angle 27 will be described later.

  Next, the bag cover 30 which is the first feature of the present invention will be described. As shown in FIG. 5, the eaves cover 30 is formed in a substantially U-shaped groove shape. The eaves cover 30 includes a bottom piece 31 having a band shape in a plan view, a left piece 32 and a right piece 33 provided at both ends in the width direction of the bottom piece 31 and standing at right angles to the bottom piece 31, and the right piece. It is comprised from the fixed piece 34 formed by bending the upper end part of 33 toward the outer side by predetermined width. Then, fixing holes 37 for passing the binding band 50 (see FIG. 9) for fixing the lead wire 60 to the eaves cover 30 are formed in three places, the vicinity of both ends in the longitudinal direction of the bottom piece 31 and the intermediate portion. It is installed.

  Further, when the mist-like cutting fluid contained in the atmosphere in the factory has entered the bottom cover 30 and accumulated in the bottom piece 31, the accumulated cutting fluid is discharged to the outside of the top cover 30. Four discharge holes 38 are arranged at predetermined intervals. The fixing piece 34 is abutted along the vicinity of the base 2 on the outer surface of the right bottom wall 3e of the splash cover 3, and is fixed by welding. The fixing method of the fixing piece 34 is not limited to welding, and a fixing hole may be provided in the fixing piece 34 and fixed to the outer surface of the right bottom wall 3e with a fixing screw or the like. Further, the bending angle of the fixed piece 34 with respect to the right side piece 33 is adjusted so as to match the inclination angle of the right bottom wall 3e of the splash cover 3 so that the inside of the heel cover 30 faces the outside surface of the right bottom wall 3e. . 5 corresponds to the “saddle-shaped protective member”, and the fixing hole 37 corresponds to the “fixing portion”.

  Next, the closing plate 40 which is the second feature of the present invention will be described. As shown in FIG. 6, the closing plate 40 is composed of a substantially rectangular flat plate 41 that is slightly horizontally long in plan view, and a rectangular parallelepiped elastic body 42 that contacts and adheres to the back surface of the flat plate 41 and has a predetermined thickness. It is configured. An upright piece 43 formed by bending a predetermined width of the one end portion substantially at a right angle is provided at one end portion orthogonal to the longitudinal direction of the flat plate 41. This standing piece 43 facilitates positioning of the elastic body 42 bonded to the back surface of the flat plate 41. Further, fixing holes 44 are formed in the vicinity of both ends in the longitudinal direction of the flat plate 41. Then, fixing screws 29 and 29 are respectively inserted into the pair of fixing holes 44 from the surface side of the flat plate 41. The elastic body 42 of the present embodiment is a urethane sponge, but is not limited to this material as long as it is flexible. Further, the elastic body 42 shown in FIG. 6 corresponds to a “flexible member”.

  Next, a method for routing the lead wire 60 in the machining center 1 having the above configuration will be described. First, as shown in FIG. 7, the three lead wires 60 connected to the operation panel 10 (see FIG. 1) and once routed inside the splash cover 3 are connected to the outlet 25 on the front side of the right bottom wall 3e. Pull out to the outside of the splash cover 3. And the edge part of these lead wires 60 is mounted along the inner side of the eaves cover 30 fixed to the right bottom wall 3e. Next, as shown in FIG. 9, the binding bands 50 are respectively passed through the three fixing holes 37 provided in the bottom piece 31 of the heel cover 30, and the lead wires 60 placed on the bottom piece 31 are tied and fixed. Thereby, it is possible to prevent the lead wire 60 from being displaced or detached from the heel cover 30.

  Further, as shown in FIG. 7, the lead wire 60 is pulled out from the exit side of the heel cover 30, and the lead wire 60 is brought into contact with the inner surface of the fixed angle 27 fixed to the back wall 3 g of the splash cover 3. Next, the binding band 50 is passed through the fixing holes 27 a and 27 a (see FIG. 4) provided at both ends of the fixed angle 27, and the lead wire 60 is tied to both sides of the fixed angle 27 and fixed. Accordingly, the lead wire 60 can be routed substantially horizontally along the outer side surface of the back wall 3g, and the lead wire 60 can be routed toward the right side surface of the column 5. Further, the lead wire 60 can be fixed to the outer surface of the back wall 3g without slack. Next, the lead wire 60 fixed to the fixed angle 27 is fixed substantially horizontally to the right side surface of the column 5 by the two fixing hooks 28 and 28. Then, as shown in FIG. 3, the lead wires 60 are routed behind the column 5 and connected to the lower side of the control device 17. Thus, the routing work of the lead wire 60 is completed.

  Furthermore, as shown in FIG. 7, a gap between the inner peripheral edge of the outlet 25 and the outer periphery of the lead wire 60 is formed inside the outlet 25 from which the lead wire 60 is drawn. In this state, the mist-like cutting fluid contained in the atmosphere in the factory enters the inside through the gap. Therefore, the gap of the outlet 25 is covered with the elastic body 42 of the closing plate 40 (see FIG. 8), and the lead wire 60 drawn from the outlet 25 is pressed from above with the elastic body 42. Then, as shown in FIG. 6, fixing screws 29, 29 are inserted into the fixing holes 44, 44 of the flat plate 41 of the closing plate 40, and the respective distal ends of the fixing screws 29, 29 are inserted as shown in FIG. 8. The support pillars 22, 22 projecting from the right bottom wall 3 e are screwed and fixed. As a result, the closing plate 40 is fixed on the support columns 22, 22, so that the gap inside the outlet 25 is closed by the elastic body 42. Therefore, it is possible to prevent the mist-like cutting fluid contained in the atmosphere in the factory from entering the inside through the gap of the outlet 25.

  As described above, in the machining center 1 of the present embodiment, the lead wire 60 drawn outward from the outlet 25 (see FIG. 7) provided in front of the right bottom wall 3e of the splash cover 3 is connected to the right bottom wall. It is placed inside the eaves cover 30 fixed to 3e and fixed to the eaves cover 30 with a binding band 50. Thereby, the lead wire 60 can be routed without slack, and the aesthetic sense around the right bottom wall 3e of the splash cover 3 can be maintained. In addition, since the eaves cover 30 is fixed not to the upper side of the splash cover 3 but to the outer side surface of the right bottom wall 3e which is the lower side, the work on the upper side of the splash cover 3 is not disturbed. Furthermore, since the lead wire 60 is routed below the splash cover 3, it is not necessary to use a ladder or the like, and the lead wire 60 routing operation and the saddle cover 30 mounting operation can be facilitated.

  Needless to say, the machine tool of the present invention is not limited to the above embodiment, and various modifications are possible.

  For example, in the present embodiment, the lead wire 60 connected to the operation panel 10 is placed and fixed in the bag cover 30 as an example, but the present invention is not limited to this, and the lead wire connected to various devices is fixed to the bag cover 30. It may be placed and fixed inside.

  In the present embodiment, the heel cover 30 is fixed to the base 2 side of the outer surface of the right bottom wall 3e of the splash cover 3, but the outer side (base 2) of the right bottom wall 3e of the splash cover 3 is fixed. It may be fixed to the opposite side).

  Further, as shown in FIG. 9, the lead wire 60 is bound by a binding band 50 passed through the fixing hole 37 (see FIG. 5) of the heel cover 30 and fixed to the inside of the heel cover 30. As in the modification shown in FIG. 10, a hook-shaped fixing device 500 may be fixed to the inner surface of the bottom piece 31 of the eaves cover 30 with a fixing screw 501 and a nut 502 while sandwiching a washer 503. In the case of this modification, the lead wire 60 can be fixed to the inside of the heel cover 30 by hooking the lead wire 60 on the hook of the fixture 500. Note that the fixture 500, the fixing screw 501 and the nut 502 shown in FIG. 10 correspond to the “fixing portion”.

  The machine tool of the present invention can be applied not only to a vertical machining center but also to a horizontal machining center.

1 is a front view of a machining center 1. FIG. 2 is a right side view of the machining center 1. FIG. It is the perspective view seen from the lower right diagonal back of the machining center. FIG. 4 is a partially enlarged perspective view of the vicinity of the right bottom wall 3e of the splash cover 3 shown in FIG. 3 (the lid cover 30, the closing plate 40, and the lead wire 60 are omitted). 3 is a perspective view of a heel cover 30. FIG. 3 is a perspective view of a closing plate 40. FIG. FIG. 4 is a partially enlarged perspective view around the right bottom wall 3e of the splash cover 3 shown in FIG. 3 (the closing plate 40 is omitted). FIG. 4 is a partially enlarged perspective view of the vicinity of a right bottom wall 3e of the splash cover 3 shown in FIG. It is AA arrow direction sectional drawing shown in FIG. It is sectional drawing which shows the modification of the fixation structure of the lead wire 60 seen from the AA arrow direction cross section shown in FIG.

DESCRIPTION OF SYMBOLS 1 Machining center 2 Base 3 Splash cover 3e Right bottom wall 20 Decorative plate 25 Outlet 30 樋 Cover 31 Bottom piece 37 Fixing hole 38 Ejection hole 42 Elastic body 50 Binding band 60 Lead wire 500 Fixing tool 501 Fixing screw 502 Nut

Claims (5)

A machine tool comprising a base, a machine body fixed to the upper part of the base and processing a workpiece, and a box-shaped cover fixed to the base and surrounding and protecting the machine body,
The cover is fixed by protruding laterally from the upper part of the base,
On the outer surface of the bottom wall of the cover that protrudes outward from the upper part of the base, wiring that is drawn outward from the inner side of the cover and is routed along the outer surface of the bottom wall is mounted on the inner side. A bowl-shaped protective member that is placed and protected is fixed ,
The bottom wall of the cover is provided with an outlet for pulling out the wiring from the inside to the outside of the cover,
The wire is bent in a portion along the outer surface of the bottom wall drawn out from the outlet and
A flexible member that closes the gap between the outlet and the wiring is fixed to the outlet so as to cover the bent portion of the wiring drawn out from the outlet from the outside of the cover. Machine tool characterized in that a closed plate is attached .   The machine tool according to claim 1, wherein the protection member is fixed to the base side of the outer surface of the bottom wall.   The machine tool according to claim 1, wherein the protective member is provided with a fixing portion for fixing the wiring to the protective member. The front lower portion of the cover, when viewed the cover from the front, any one of claims 1 to 3, characterized in that the protective member is extended downward to the extent that hiding veneer is provided The machine tool described in 1. The machine tool according to any one of claims 1 to 4 , wherein a discharge hole for discharging cutting fluid and chips accumulated inside is provided on a bottom surface of the protective member.

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