CN1923460A

CN1923460A - Machine tool

Info

Publication number: CN1923460A
Application number: CNA2006101261042A
Authority: CN
Inventors: 龟山郁雄
Original assignee: Brother Industries Ltd
Current assignee: Brother Industries Ltd
Priority date: 2005-09-02
Filing date: 2006-08-21
Publication date: 2007-03-07
Anticipated expiration: 2026-08-21
Also published as: KR100845998B1; CN100544886C; KR20070026223A; JP2007061998A; TWI307649B; TW200709889A

Abstract

Provided a machine tool which prevents cutting liquid dropped on a base from leaking to the outside of the base and also prevents chip from being deposited on the base. A labyrinth part 60 is provided between a bottom part 21 of a recessed storage part 20 provided on the base 2 and a lower part of a splash cover 3. For example, the labyrinth part 60 in the vicinity of a peripheral plate 22 on the right side of the base 2 can be easily constituted by a side wall part 73c of a right side gutter member 70 arranged in the bottom part 21 of the storage part 20 of the base 2 to discharge coolant to the outside of the base 2 and a first extended piece 100 and a second extended piece 110 extended toward an outer side face of a right bottom wall 3e and a bottom part 21 side of the storage part 20 from the outer side face of the right bottom wall 3e each. Consequently, even if coolant flows into the right side gutter member 70 with force, the force of coolant is weakened by the labyrinth part 60, and leakage of coolant to the outside of the base is prevented.

Description

Lathe

Technical field

The present invention relates to a kind of lathe, particularly relate to lathe with lid that the cooling fluid of preventing and cutting powder disperse from the pedestal towards periphery.

Background technology

In the past, as a kind of machining center of lathe, be to have the machine body that uses the cutting tool processing work on the pedestal at base, on this pedestal, be equipped with the protection baffle plate that covers part or all usefulness of machine body.This protection baffle plate is used to prevent disperse to exterior circumferential from cutting powder and cooling fluid that the workbench of being located at pedestal top and machine body disperse out.

Be equipped with the machining center of this protection baffle plate, have the incorporating section of concavity usually on pedestal top, will protect the bottom of baffle plate directly to be fixed on the bottom surface of this incorporating section with screw.Yet, in this structure, between the bottom of the bottom surface, incorporating section of pedestal and protection baffle plate, producing the gap sometimes, cooling fluid can spill laterally from this gap.

For this reason, for example known lathe that a kind of following structure is arranged: between all plates of the bottom of protecting baffle plate and incorporating section, form spatial portion, be embedded in the rubber system filler that prevents leakages such as cooling fluid from this spatial portion of outer direction of protecting baffle plate.In addition; in the lathe that Japanese Patent Laid discloses 2002 No. 205542 communique is put down in writing; side around lathe of the incorporating section on pedestal is provided with peristome, disposes the filler in the bottom surface of stopping up the incorporating section and the gap of protecting the baffle plate bottom in this peristome.In this lathe, because of loading and unloading filler, so can easily carry out the handling operation of filler in the inboard of protection baffle plate.Filler is hidden in the inboard of protection baffle plate, can also improve aesthetic appearance.

But, in this lathe, having used filler for the bottom surface of the incorporating section of stopping up pedestal and the gap between the protection baffle plate bottom, this filler is rubber system or sponge system mostly, lacks durability.Therefore, after date must be changed filler in the time of one section, has the problem of the handling operation trouble of bringing because of the replacing filler.For filler is deviate from from peristome, must be with metallic plate this filler be pushed down and fixes from the top, so also exist the cutting powder attach fix on the bolt and nut that this metallic plate uses, and the problem that causes the cutting powder to pile up with this as the starting point.

Summary of the invention

The object of the present invention is to provide a kind of cooling fluid that prevents from down to drop on the pedestal outside pedestal, to spill, also can prevent to cut the lathe that powder is piled up on pedestal.

In order to achieve the above object, the lathe of technical scheme 1 comprises: pedestal; Be located at the machine body of the processing work on this pedestal; And be fixed on the described pedestal and the lid that is the case shape of part or all covering of the top of described pedestal and described machine body, have on the top of described pedestal inboard concavity incorporating section is taken in and be supported in the bottom of described lid, between the bottom of the bottom of this incorporating section and described lid, have labyrinth part.

Adopt the lathe of technical scheme 1, promptly causing to fall and break enters into labyrinth part tumultuously in the cooling fluid of incorporating section, and cooling fluid imposing manner during by the passage of this Qu Luzhuan is died down.Thus, can prevent that the cooling fluid in the incorporating section from spilling outside pedestal.Because of not using the sort of in the past filler, so in labyrinth part, do not have fixture such as screw that the metallic plate of fixedly pushing filler uses, nut and barrier etc.Thus, even contain the cutting powder in cooling fluid, the cutting powder can not attach on barrier etc. yet and piles up in labyrinth part.

In the lathe of technical scheme 2, be provided with along the sidewall of described pedestal and prolong the board member that from the bottom of described incorporating section upward, constitute labyrinth part by the bottom and the described board member of described lid.

In the lathe of technical scheme 2, only need to prolong the board member that upward from the bottom of incorporating section along the sidewall setting of pedestal, can easily utilize the bottom of this board member and lid to constitute labyrinth part.

In the lathe of technical scheme 3,4, comprising: the passing away of concavity, be formed on the described bottom of described incorporating section of described pedestal, be used for cutting powder and cooling fluid are discharged outside described incorporating section; And the groove member of concavity, be provided in the inboard of described passing away, extend along described passing away, and have a width dimensions shorter than the width dimensions of described passing away, be made of diapire and the pair of sidewalls erect from the width both ends of this diapire, described board member is made of outside sidewall in the described pair of sidewalls of described groove member, that be positioned at the outside, described incorporating section.

In the lathe of technical scheme 3,4, be configured in the inboard of passing away by the groove member that will have the width dimensions shorter than described passing away, can easily utilize the outside sidewall of groove member to be configured for constituting the board member of labyrinth part.By making cooling fluid flow to the inboard of groove member,, cooling fluid is discharged to outside the pedestal by flowing in the passing away even cooling fluid is overflowed from the groove member.Shorter because of the width dimensions of groove member than the width dimensions of passing away, so produce the gap between groove member and the passing away, overflow from the groove member even flow to the cooling fluid of groove member inboard, cooling fluid is flowed in the passing away from this gap.

The lathe of technical scheme 5 has in the described bottom of described lid and to form forked forked portion, by the described board member of described forked portion clamping.

In the lathe of technical scheme 5, be configured to the form of grip block member by the forked portion that will be formed at the lid bottom, can make the labyrinth part that constitutes by board member and lid bottom more complicated and obtain prolonging.Thus, can further weaken the imposing manner of the cooling fluid stream that enters labyrinth part.

The lathe of technical scheme 6,7 has the supporting station that supporting is used for fixing the workbench of described workpiece in the described bottom of described incorporating section, conflict with the upper end and the described supporting station of described outside sidewall inside side walls in opposite directions.

In the lathe of technical scheme 6,7, conflict with upper end outside sidewall inside side walls in opposite directions and supporting station owing to the groove member, therefore, can make the cooling fluid that falls from the workbench of supporting station supporting flow to the groove member.Because of of the supporting station side configuration of groove member, so between the medial surface of the outside of groove member sidewall and passing away, can form the gap near passing away.Thus, even cooling fluid has been crossed the outside sidewall of groove member, also can make this cooling fluid flow to the gap of outside sidewall and passing away and flow in the passing away.

Description of drawings

Fig. 1 is the stereogram of machining center 1.

Fig. 2 is the right view of machining center 1.

Fig. 3 is the cutaway view along A-A line shown in Figure 2.

Fig. 4 is the stereogram (not shown right side groove member 70, left side groove member 80) of pedestal 2.

Fig. 5 is the stereogram (figure is shown with right side groove member 70, left side groove member 80) of pedestal 2.

Fig. 6 is the stereogram of right side groove member 70.

Fig. 7 is the stereogram of connecting elements 90.

Fig. 8 is near the sectional elevation of the labyrinth part 60 upper right peripheries that constitute, pedestal 2 all plates 22 on expression pedestal 2 right sides.

Fig. 9 near 60 tops that constitute, pedestal 2 of the labyrinth part all plates 22 of expression pedestal 2 front sides before the longitudinal section of side periphery.

Figure 10 is the sectional elevation of the labyrinth part 160 upper right peripheries that constitute, pedestal 2 of expression variation 1.

Figure 11 is the sectional elevation of the labyrinth part 260 upper right peripheries that constitute, pedestal 2 of expression variation 2.

The specific embodiment

The machining center 1 of one embodiment of the invention is described with reference to the accompanying drawings.

Among Fig. 4, Fig. 5, the oblique upside in a left side is decided to be the place ahead of pedestal 2, right tiltedly downside is decided to be the rear of pedestal 2, and a left side tiltedly downside is decided to be the right side of pedestal 2, and right tiltedly upside is decided to be the left side of pedestal 2.Among Fig. 6, the oblique upside in a left side is decided to be the place ahead of right side groove member 70, right tiltedly downside is decided to be the rear of right side groove member 70, and a left side tiltedly downside is decided to be the right side of right side groove member 70, and right tiltedly upside is decided to be the left side of right side groove member 70.In the following description, the X-direction of machining center 1 is meant the left and right directions of machining center 1, and Y direction is meant the fore-and-aft direction (depth direction) of machining center 1, and Z-direction is meant the above-below direction of machining center 1.

The invention is characterized in that the machining center 1 in the present embodiment is provided with the labyrinth part 60 (with reference to Fig. 3) of Qu Luzhuan as shown in Figure 4 between the bottom of the bottom 21 of being located at the concavity incorporating section 20 on the pedestal 2 and protection baffle plate 3.

The summary that machining center 1 at first is described constitutes.Machining center 1 shown in Figure 1 is a lathe of implementing required machining (for example " boring ", " milling ", " boring ", " cutting " etc.) by not shown workpiece and cutter are relatively moved on workpiece.The formation main body of this machining center 1 comprises: as the pedestal made of iron 2 of base, be located at the workpiece processing usefulness on these pedestal 2 tops machine body, be fixed in the top of described pedestal 2 and the case shape protection baffle plate 3 that the top of machine body and pedestal 2 is covered; machining center 1 is equipped with control cabinet 9 at the rear of protection baffle plate 3, and the control device (not shown) of control machining center 1 action is housed in the control cabinet 9.Protection baffle plate 3 shown in Figure 1 is equivalent to " lid ".

As shown in Figure 1 and Figure 2, pedestal 2 is by injecting moulding in the mold with metal materials such as cast irons, and having Y direction is the shape of the roughly cuboid of length direction.In order to realize lightweight, high strength and cost degradation, its core has adopted so-called hollow forming (the skeleton combining structure of rib).Four jiaos in pedestal 2 bottoms are equipped with height-adjustable foot section 2a respectively.On the ground that these four foot section 2a is arranged on workshop etc., thereby machining center 1 is arranged on determined location.Be equipped with a pair of Upright post base spaced apart from each other portion 4,4 (only illustrating one among Fig. 2) in two bights of the top of pedestal 2 rear side.Upright post base portion the 4, the 4th has the roughly base of rectangular shape.In a pair of Upright post base portion 4,4, fixing the bottom of the column column 5 that extends along Z-direction.

As shown in Figure 3, be equipped with the concavity incorporating section 20 (with reference to Fig. 4) that is made of bottom 21 and all plates 22 on the top of pedestal 2, the inboard of this incorporating section 20 forms the state of taking in protection baffle plate 3 bottoms.Machining center 1 is provided with the labyrinth part 60 as the Qu Luzhuan of feature of the present invention between the bottom 21 of the incorporating section 20 of the bottom of protecting baffle plate 3 and pedestal 2.Thus, can prevent to flow into cooling fluids in the incorporating section 20 of pedestal 2 crosses all plates 22 of pedestal 2 and spills outside pedestal 2.About the superstructure of this pedestal 2 and the formation aftermentioned of labyrinth part 60.

As Fig. 1～shown in Figure 3; protection baffle plate 3 has case shape shape, is made of following polylith metallic plate: antetheca 3a, right side wall 3b, left side wall 3c, roof 3d, from pedestal 2 tops to the right tiltedly the right diapire 3e that bloats of side, from pedestal 2 tops the tiltedly left diapire 3f that bloats of side, the right back wall 3g that bloats to the right from the front of column 5, the left back wall 3h that bloats to the left from the front of column 5 etc. left.As shown in Figure 1, antetheca 3a has the OBL peristome 10 of lengthwise in its substantial middle, is equipped with the shutter door 11 of slide opening and closing formula on this peristome 10.Handle portion 11a by this shutter door 11 of sliding to left opens peristome 10, can the workpiece that remain on the workbench 8 described later (with reference to Fig. 3) be loaded and unloaded.Antetheca 3a is equipped with guidance panel 12 on the right side of shutter door 11, is used to carry out the setting input of the parameter of the procedure of machining center 1 and procedure etc.

As shown in Figure 1 and Figure 2, right side wall 3b has OBL peristome 14, has the protection baffle plate side cover 15 of the fixing lid shape of self-mountable ﹠ dismountuble at this peristome 14.Should protect baffle plate side cover 15 to take off, open peristome 14, the maintaining operation that just can carry out the handling operation of the workpiece on the workbench 8 and be accommodated in the various devices of the formation machine body of protecting baffle plate 3 inboards.Though not shown, left side wall 3c also is equipped with the protection baffle plate side cover of the peristome identical with right side wall 3b and inaccessible this peristome.

The roof 3d of protection baffle plate 3 is equipped with the peristome (not shown) for the motor outstanding usefulness such as (not shown) of main tapping (not shown), the distribution (not shown) that leads to main tapping, cutter switch 6 (with reference to Fig. 3).As shown in Figure 1 and Figure 2, the

lid

17,18 of case shape covers this peristome respectively.Protect the antetheca 3a of baffle plate 3, be equipped with the alarm lamp 16 of tower in the bight of upper left-hand, be used for informing the mistake of relevant machining center 1 action to the operator.

As shown in Figure 3, taking in the machine body that the workpiece machining is used in the inboard of protection baffle plate 3.The formation main body of this machine body comprises: carrying is fixed on the column column 5 in the Upright post base portion 4,4 (with reference to Fig. 2) that is located at rear, pedestal 2 top; Remain on this column 5 with the pedestal 2 tops front face side in opposite directions and the main tapping (not shown) that can move along Z-direction; Remain in the bottom and the rotatable main shaft 7 of this main tapping; And be installed on this main shaft 7 and the cutter switch (ATC) 6 of automaticity exchange cutter.The incorporating section 20 on pedestal 2 tops is equipped with the workbench 8 that can move along the XY direction of principal axis, releasably is fixed with workpiece on this workbench 8.

The following describes workbench 8.The position of workbench 8 shown in Figure 3 is on the aftermentioned stage support platform 24 (with reference to Fig. 4) of 20 inboards, incorporating section of being located at pedestal 2, can move along XY direction of principal axis (horizontal plane) in incorporating section 20.Specifically, have moving body 50, be equipped with a pair of X-axis of extending along X-direction on the top of moving body 50 and send linear guides (not shown) at the downside of workbench 8.And by having the X-axis travel mechanism of ballscrew shaft, nut and X motor (not shown) etc., workbench 8 is sent on the linear guides in described a pair of X-axis and is moved.Moving body 50 can be sent on the

linear guides

30,30 in a pair of Y-axis of extending along Y direction in the incorporating section 20 of pedestal 2 and move.Specifically, by having the y-axis shift actuation mechanism of ballscrew shaft, nut and the Y motor (not shown) etc. identical with described X-axis travel mechanism, moving body 50 is sent on the

linear guides

30,30 in described a pair of Y-axis and is moved.Thus, workbench 8 can move on the XY direction of principal axis.

As shown in Figure 3, send the left and right sides, top of linear guides in X-axis, be equipped with telescopic a pair of

extensible protection board

52,53 respectively, workbench 8 is sandwiched in its central authorities.Y-axis is sent

linear guides

30,30 at an upper portion thereof, also is equipped with the extensible protection board 54 that is disposed at workbench 8 front sides respectively and is constituted and be disposed at Y-axis rear cover body (not shown) between the front face side of workbench 8 and column 5 by the metallic plate that the cross section roughly is mountain shape.Thus, no matter which side workbench 8 move to (being only limited to the XY direction of principal axis that constitutes horizontal plane) towards, and these various lids also can be sent X-axis to linear guides and Y-axis and send

linear guides

30,30 coverings to.Thus, can prevent to cut powder and be deposited in that X-axis is sent linear guides to and Y-axis is sent on the

linear guides

30,30.

Describe the superstructure of pedestal 2 below in detail.As shown in Figure 4, the top of pedestal 2 have be integrally formed as above the incorporating section 20 of concavity of opening.This incorporating section 20 has along the bottom 21 that bowing of Y direction extension seen the shape that roughly is rectangle and surrounds the peripherally upright all plates 22 established in this bottom 21.Bottom 21 rearward gently tilts downwards from the place ahead of pedestal 2.Week plate 22 have that the rear side of pedestal 2 is open, Y direction is that bowing of length direction seen the shape that the bottom of roughly being rectangle is cut open.Like this, disperse the inboard of protection baffle plate 3 and fall within down cooling fluid incorporating section 20 in along the bottom 21 inclined plane mobile, flow out to outside the pedestal 2 from the rear of pedestal 2.All plates 22 shown in Figure 4 are equivalent to " sidewall of described pedestal ".

The following describes each member of being located on all plates 22.As shown in Figure 4, the upper end of all plates 22 of pedestal 2 front sides is equipped with a pair of tabular fixed

head

40,40 that specific thickness was fixed and had on predetermined distance ground that separates.This a pair of

fixed head

40,40 has the fixing hole 40a that is communicated with the screw (not shown) that connects for all plate 22 above-below directions separately.Each upper end of all plates 22 of the left and right sides of pedestal 2 is equipped with a pair of

tabular support plate

42,42 that specific thickness was fixed and had on predetermined distance ground that separates.

In the time will protecting baffle plate 3 to be fixed on the pedestal 2, use this fixed head 40 and support plate Upright post base portion 42.As Fig. 1, shown in Figure 9, the support 58 that is installed on the antetheca 3a bottom of protection baffle plate 3 is conflicted with fixed head 40, fix with screw 68.As Fig. 2, shown in Figure 8, the cross section described later near the lateral surface that the bottom of being located at the right diapire 3e (left diapire 3f) that protects baffle plate 3 is roughly is a slice and the support plate 42 of the supporting slice 112 of L word shape and conflicts.Thus, will protect the lower support of baffle plate 3 on the support plate 42 of all plates 22.Like this, will protect baffle plate 3 to be installed on the pedestal 2.

The following describes the structure of each member of being located at bottom 21.As shown in Figure 4,21 the substantial middle portion between the left and right sides in the bottom, be equipped be used for workbench 8 approximate horizontal be bearing in roughly rectangular-shaped stage support platform 24 in the incorporating section 20, integrally formed and constitute with bottom 21.Stage support platform 24 by roughly rectangular-shaped supporting station body 25, generally perpendicularly each a pair of right abutment wall 26 and left abutment wall 28 of establishing of supporting oneself constitutes from the both ends, the left and right sides of this supporting station body 25, has the shape that roughly is concavity with the cross section of length direction quadrature.Surround the concavity tunnel-shaped that forms by front, right flank and left surface, bottom 21, all plates 22 of this stage support platform 24 and become " passing away " that is used to cooling fluid is flowed out outside pedestal 2.

The following describes the structure that stage support platform 24 is had.The structure that supporting station body 25 is had at first is described.As shown in Figure 4, rear side is equipped with a pair of rest pad spare 47,47 on supporting station body 25.This rest pad spare 47,47 is rotatably with an end bearing of the ball screw axle (not shown) of described y-axis shift actuation mechanism, and is simultaneously that the Y motor (not shown) of this ball screw axle rotation usefulness is fixing.Front side is equipped with a pair of rest pad spare 48,48 on supporting station body 25, is used for rotatably the other end supporting with described ball screw axle.By using these rest pad spares 47,48 will constitute the various member supportings of described y-axis shift actuation mechanism, thereby the y-axis shift actuation mechanism is configured in the low downside in each upper end than a pair of right abutment wall 26 and left abutment wall 28.

Next illustrates the structure that right abutment wall 26 and left abutment wall 28 are had.As shown in Figure 4, in each upper end of right abutment wall 26 and left abutment wall 28, be equipped with respectively and be used to install Y-axis and send bowing of linear guides 30 (with reference to Fig. 3) to and see the linear guides installed

surface

27,29 that is banded.Each bight in the inboard (inboard of stage support platform 24) of this linear guides installed

surface

27,29, be equipped with respectively be used for Y-axis send linear guides 30 location to, outstanding and cross section is shoulder 27a, the 29a of convex upward.Thus, be installed on the linear guides installed

surface

27,29 on the inboard direction toward the outer side of stage support platform 24, sending a pair of Y-axis to linear guides 30, position after conflicting with each

shoulder

27a, 29a.

Bottom 21 is equipped with the states and the front that form 21 settings from the bottom at the rear of stage support platform 24 and sees the seat portion supporting station 32 that roughly is Y word shape.The left and right sides on present portion supporting station 32 tops is equipped with being spaced from each other and is used to carry the base of vertical columns 5 bottoms, promptly roughly is rectangular-shaped a pair of Upright post base portion 4,4.Bow and see that the level board 34 that is trapezoidal is connected between the upper end of the bottom of this Upright post base portion 4,4 and all plates 22.The downside of these each level boards 34 forms tunnel-shaped cooling passage 35 exactly, is used for the cooling fluid that falls within down in the incorporating section 20 is discharged from the rear of two side direction pedestals 2 of seat portion supporting station 32.At the upper surface of level board 34 and be contacted with between the lateral surface of Upright post base portion 4 of these level board 34 upper surfaces, separate three reinforcement that form triangular shape roughly stem for stem of predetermined distance ground with rib 45.

Seat portion supporting station 32 has rake 37 between a pair of Upright post base portion 4,4, the rear towards pedestal 2 gently tilts downwards this rake 37 from the rear, top of stage support platform 24.Thus, the cooling fluid that drops on supporting station body 25 upper surfaces down flows along this rake 37, flows out to the rear of pedestal 2.

As shown in Figure 5, on the bottom 21 of the incorporating section 20 that constitutes by said structure, be equipped with form the cross section be concavity groove, bow and see a pair of right side groove member 70 and the left side groove member 80 that roughly is L word shape.Right side groove member 70 that this is a pair of and left side groove member 80 are to lay with the form of the front side that buries stage support platform 24 and the left and right sides.This right side groove member 70 and left side groove member 80 are parts of the labyrinth part 60 of feature of the present invention, are used for flowing into the rear of inboard cooling fluid guide base 2.

The following describes the structure of right side groove member 70 and left side groove member 80.A pair of right side groove member 70 shown in Figure 5 and left side groove member 80 are made of the metallic plate with smooth flanks.As shown in Figure 6, right side groove member 70 constitutes along the longitudinal part 73 that Y direction extends in parallel by the transverse part 72 that extends along X-direction and from length direction one end of this transverse part 72, and integral body is to bow to see the shape that roughly is L word shape.As shown in Figure 5, left side groove member 80 constitutes along the longitudinal part 83 that Y direction extends in parallel by the transverse part 82 that extends along X-direction and from length direction one end of this transverse part 82 too, and integral body is to bow to see the shape that roughly is L word shape.Right side groove member 70 is mutual symmetrical shapes with most of structure of left side groove member 80, thus be the center detailed description with right side groove member 70, to left side groove member 80 schematic illustration then.Right side groove member 70 and left side groove member 80 shown in Figure 5 are equivalent to " the groove member of concavity ".

Transverse part 72 at first is described.As shown in Figure 6, transverse part 72 has to bow sees the OBL horizontal body 72a that grows crosswise, and in an end this horizontal body 72a and the direction length direction quadrature, has that Rack with this end bends to approximate right angle and the side wall portion 72b that forms.Horizontal body 72a has the connecting portion 72c that bows and see the shape that is rectangle in its length direction one end, is used for overlapping length direction one end that connects the transverse part 82 of left side groove member 80.This connecting portion 72c has fixing

hole

85,85 two fixing holes (not shown) in opposite directions on the end with the transverse part 82 of being located at left side groove member 80.Thus, after the end with the transverse part 82 of left side groove member 80 overlaps above the connecting portion 72c, screw 66 communication types are entrenched in each fixing hole, and fix, thereby right side groove member 70 and left side groove member 80 are interconnected with nut (not shown).

Next illustrates longitudinal part 73.As shown in Figure 6, longitudinal part 73 has to bow sees the OBL vertical body 73a of lengthwise, and the other end quadrature shape that this vertical body 73a is opposite with the end with connecting portion 72c side of transverse part 72 is being connected.Vertical body 73a with the leading section back end opposite side width stenosis that is being connected transverse part 72, have the shape of cooling passage 35 (with reference to Fig. 4) inboard on the left and right sides that can insert the seat portion supporting station 32 of being located at pedestal 2.

In one end, the outside (end of a side opposite) of vertical body 73a and the direction length direction quadrature, have that Rack with one end, this outside bends to approximate right angle upward and the side wall portion 73b that forms with transverse part 72 sides.Vertical body 73a has the side and sees the roughly side wall portion 73c of shape triangular in shape, and this side wall portion 73c is fixed on the lateral surface of side wall portion 73b, raises gradually from the front of vertical body 73a is distolateral backward.Side wall portion 73c has the notch 76 of L word shape near than rear end slightly backward, intermediate portion, and the height of the side wall portion 73c from this notch 76 to rearward end is identical with the height of described cooling passage 35 inboards of pedestal 2.

In one end, inboard (ends of transverse part 72 sides) of vertical body 73a and the direction length direction quadrature, have that Rack with one end, this inboard bends to approximate right angle and the side wall portion 73d that forms.Vertical body 73a has conflict side wall portion 73e, this conflict side wall portion 73e be fixed on side wall portion 73d lateral surface, from the front of this side wall portion 73d to the part of pars intermedia.The face approximate right angle shape of the vertical relatively body 73a of conflict side wall portion 73e is erect, and its upper end is to the outside curve of longitudinal part 73.

Lateral surface in side wall portion 73d rearward end has the fixation wall 73f slightly higher than side wall portion 73d.This fixation wall 73f is used for fixing length direction one end of connecting elements 90, and this connecting elements 90 is connected fixation wall 73f with the fixation wall 83f (with reference to Fig. 5) of the rearward end of the longitudinal part 83 of left side groove member 80.Near the fixing hole 77 that the rearward end of this fixation wall 73f, has dead joint member 90 usefulness.Side wall portion 73c shown in Figure 6 and conflict side wall portion 73e are equivalent to " pair of sidewalls ", and side wall portion 73c is equivalent to " outside sidewall ", and conflict side wall portion 73e is equivalent to " inside side walls ".

The width dimensions of the horizontal body 72a of transverse part 72 is shorter than the width dimensions of passing away, and this passing away is clipped between all plates 22 and stage support platform 24 fronts of pedestal 2 front sides.Thus, as shown in Figure 9, between the side wall portion 72b of transverse part 72 and all plates 22, produce specified gap, utilize this specified gap that labyrinth part 60 described later can be set.Because of transverse part 72 and all plates 22 separate, spill from all plates 22 so can prevent the cooling fluid that flows in the transverse part 72.

The width dimensions of the horizontal body 73a of longitudinal part 73 is shorter than the width dimensions of passing away, and this passing away is clipped between right abutment wall 26 lateral surfaces of all plates 22 on pedestal 2 right sides and stage support platform 24.Thus, as shown in Figure 8, between the side wall portion 73c of longitudinal part 73 and all plates 22, produce specified gap, utilize this specified gap that labyrinth part 60 described later can be set.Because of longitudinal part 73 and all plates 22 separate, spill from all plates 22 so can prevent the cooling fluid that flows in the transverse part 73.

The following describes the right side groove member 70 and the arrangement method of left side groove member 80 on pedestal 2 that constitute by said structure.As shown in Figure 5, at first upward, right side groove member 70 is configured to cover the form of right half part of bottom 21 of the incorporating section 20 of pedestal 2 with the open side of the right side groove member 70 of concavity.At this moment, the rearward end of the longitudinal part 73 of right side groove member 70 is inserted the inboard of the tunnel-shaped cooling passage 35 (with reference to Fig. 4) that is configured in pedestal 2 rears.Then, with the open side of left side groove member 80 upward, left side groove member 80 is configured to cover the form of left-half of bottom 21 of the incorporating section 20 of pedestal 2.The inboard that the rearward end of the longitudinal part 83 of left side groove member 80 is inserted the cooling passage 35 (with reference to Fig. 4) that is configured in pedestal 2 similarly.

As shown in Figure 6, with the transverse part 82 of left side groove member 80, with the transverse part 72 overlapping shape in an end in opposite directions of right side groove member 70 be configured in right side groove member 70 transverse part 72 connecting portion 72c above.Screw 66 is embedded in the fixing hole of connecting portion 72c of transverse part 72 of the fixing hole 85 of transverse part 82 of left side groove members 80 and right side groove member 70, and fix with nut (not shown).Thus, the transverse part 72 of right side groove member 70 and the transverse part 82 of left side groove member 80 are interconnected.

As shown in Figure 5, the connecting elements 90 that the cross section roughly is L word shape is fixed near the rearward end of bottom 21 of pedestal 2, and this connecting elements 90 is connecting the rearward end of the longitudinal part 83 of the rearward end of longitudinal part 73 of right side groove member 70 and left side groove member 80.This connecting elements 90 is capable of expansion and contraction, is used for that right side groove member 70 and left side groove member 80 pulled to stage support platform 24 sides of the substantial middle on the bottom 21 together and is fixed on the bottom 21 of pedestal.

The following describes connecting elements 90.As shown in Figure 7, connecting elements 90 roughly is the 1st connecting elements 91 of L word shape by the cross section and the 2nd connecting elements 92 that same cross section roughly is L word shape constitutes.Distolateral inboard overlapping of the length direction one of the 2nd connecting elements 92 and the 1st connecting elements 91 connects with the state that can slide along the length direction of the 1st connecting elements 91 in predetermined distance.

At first, the 1st connecting elements 91 has the shape that the cross section roughly is L word shape, sees that by bowing body sheet 91a that is banded and the lateral plate 91b that is arranged to approximate right angle in the end with the direction length direction quadrature this body sheet 91a constitute.On the 1st connecting elements 91, opposite the other end, connecting with respect to body sheet 91a and the rectangular OBL stator 91c of lateral plate 91b with an end of a side that is connecting the 2nd connecting elements 92.Stator 91c has elliptoid fixing hole 97 long slightly on the width of body sheet 91a.Body sheet 91a has

elliptoid adjustment hole

95,95 near an end of a side that is connected with described the 2nd connecting elements 92, this

adjustment hole

95,95 is arranged in a pair of along the length direction of body sheet 91a series connection shape, be length direction with the length direction of body sheet 91a.

The 2nd connecting elements 92 has the shape that the cross section roughly is L word shape too, sees that by bowing body sheet 92a that is banded and the lateral plate 92b that is arranged to approximate right angle in the end with the direction length direction quadrature this body sheet 92a constitute.On the 2nd connecting elements 92, opposite the other end, connecting with respect to body sheet 92a and the rectangular OBL stator 92c of lateral plate 92b with an end of a side that is connecting the 1st connecting elements 91.Stator 92c has elliptoid fixing hole 98 long slightly on the width of body sheet 92a.Body sheet 92a has a pair of

adjustment hole

96,96 near an end of a side that is connected with described the 1st connecting elements 91, this

adjustment hole

96,96 respectively with a pair of

adjustment hole

95,95 of the 1st connecting elements 91 in opposite directions.The length direction that

adjustment hole

96,96 has with body sheet 92a is the elliptical shape of length direction, arranges along the length direction series connection shape of body sheet 92a.

The following describes the fixing means of the connecting elements 90 that constitutes by said structure.At first as shown in Figure 5, use screw 94 and nut (not shown) the stator 91c (with reference to Fig. 7) of the 1st connecting elements 91 to be fixed on the fixation wall 83f of longitudinal part 83 rearward end of left side groove member 80.Then, use screw and nut (not shown) the stator 92c (with reference to Fig. 7) of the 2nd connecting elements 92 to be fixed on the fixation wall 73f of longitudinal part 73 rearward end of right side groove member 70.Again the described other end of the 2nd connecting elements 92 is stressed to be stacked in the 1st connecting elements 91 described another distolateral on.Then, the

adjustment hole

95,95 of body sheet 91a side is mutually opposed with the

adjustment hole

96,96 of body sheet 92a side.

Secondly, the 1st connecting elements 91 and the 2nd connecting elements 92 are pulled to stage support platform 24 sides.Thus, the lateral surface of the upper end of the conflict side wall portion 73e of right side groove member 70 and the right abutment wall 26 of stage support platform 24 is conflicted, and the lateral surface of the upper end of the conflict side wall portion 83e of left side groove member 80 and the left abutment wall 28 of stage support platform 24 is conflicted.

Then, with respect near the fixing hole the rearward end of the bottom 21 that is arranged on pedestal 2 23,23 (with reference to Fig. 4), that each

adjustment hole

95,96 overlapping shape of the 1st connecting elements 91 and the 2nd connecting elements 92 are opposed.By screw 99 being embedded respectively in these adjustment holes 95,96 and the fixing hole 23, the 1st connecting elements 91 is connected with the straight line shape with the 2nd connecting elements 92, connecting elements 90 is fixed on the bottom 21 of pedestal simultaneously.

Like this, in the substantial middle that the 1st connecting elements 91 and the 2nd connecting elements 92 is pulled to stage support platform 24 sides, be fixed on the bottom 21 of pedestal 2.Thus, very close to each other between the lateral surface of the right abutment wall 26 of the upper end of the conflict side wall portion 73e of right side groove member 70 and stage support platform 24.Equally, very close to each other between the lateral surface of the left abutment wall 28 of the upper end of the conflict side wall portion 83e of left side groove member 80 and stage support platform 24.The state that the conflict side wall portion 83e that is in the conflict side wall portion 73e of right side groove member 70 and left side groove member 80 covers two lateral surfaces of the right abutment wall 26 of stage support platform 24 and left abutment wall 28 respectively.

Adopt this structure, do not flow to passing away in the incorporating section 20 on the pedestal 2 from the disperse major part of the cooling fluid that falls of workbench 8, but flow to the inboard of right side groove member 70 and left side groove member 80.As mentioned above, that cast iron is injected mold is integrally formed because of pedestal 2, so its rough surface attaches the cutting powder that contains in the cooling fluid easily.But, in the machining center 1 of present embodiment, can make the major part of cooling fluid not flow to passing away on the pedestal 2, and flow to ganoid right side groove member 70 and left side groove member 80.Thus, the medial surface of right side groove member 70 and left side groove member 80 can not attach the cutting powder, so can improve the discharge of cooling fluid and cutting powder.

The following describes the formation of the labyrinth part 60 of feature of the present invention.Labyrinth part 60 shown in Figure 3 is passages of the Qu Luzhuan that is provided with in order to prevent cooling fluid from spilling.This labyrinth part 60 is present near all plates 22 of pedestal 2 left and right sides respectively and near all plates 22 of pedestal 2 front sides.In the following description, successively the labyrinth part 60 of pedestal 2 left and right sides, the labyrinth part 60 of pedestal 2 front sides are described respectively.

At first explanation is formed on the formation of the labyrinth part 60 of pedestal 2 left and right sides.The labyrinth part 60 on pedestal 2 right sides is the left-right symmetry structure with the labyrinth part 60 in pedestal 2 left sides mutually, so be that example describes with near all plates 22 labyrinth part 60 of being located at pedestal 2 right sides.

As shown in Figure 8, the right diapire 3e of protection baffle plate 3 tiltedly tilts to extend in the below from bottom side direction in the incorporating section 20 of pedestal 2 of right side wall 3b (with reference to Fig. 3), and the medial surface of all plates 22 of the bottom of right diapire 3e and incorporating section 20 separates slightly.Right diapire 3e have see from its bottom vertical configuration extension downwards and leading section and side in opposite directions, groove member 70 inboards, right side be band shape extend sheet 100.Extend sheet 100 and be positioned at side wall portion 73c position slightly to the inside than right side groove member 70.

The right diapire 3e of oblique inclination than the bottom slightly to the lateral surface of upside have the side see grow crosswise the OBL the 2nd extend sheet 110.The 2nd extends sheet 110 along its length with the Rack bending, and a slice of upside is fixed on the lateral surface of right diapire 3e, and another sheet of downside extends to the gap of the lateral surface of the side wall portion 73c of the medial surface of all plates 22 and right side groove member 70.As Fig. 2 or shown in Figure 8, the 2nd extends sheet 110 is fixed on the cross section with near near these two positions leading section of described another sheet and the rearward end and roughly is on the supporting slice 112 of L word shape.Supporting slice 112 is used in the time will protecting baffle plate 3 to be installed in pedestal 2 tops, a slice of extending from the 2nd lateral surface approximate horizontal shape that extends sheet 110 that makes supporting slice 112 and the upper surface of each support plate 42 of all plates 22 upper ends of being fixed in pedestal 2 conflict (with reference to Fig. 2).

In the above-mentioned formation, the side wall portion 73c of right side groove member 70 a pair of the 1st extends sheet 100 and the 2nd and extends the gap between the sheet 110 what extend downwards separately from the bottom of right diapire 3e.Thus, the side wall portion 73c, the 2nd that reason the 1st extends lateral surface, the right side groove member 70 of sheet 100, right diapire 3e extends the tunnel-shaped that sheet 110 constitutes becomes Qu Luzhuan, so can constitute labyrinth part 60.The shown in Figure 8 the 1st extends sheet 100 and the 2nd extends sheet 110 and is equivalent to " forked portion ".

In this labyrinth part 60 between the gap between the lateral surface of the upper end of the inboard of right side groove member 70 and all plates 22 and right diapire 3e.Thus, crossed the side wall portion 73c of right side groove member 70 even cooling fluid ferociousness in right side groove member 70 flows, also the imposing manner of cooling fluid has been weakened because of colliding with the wall that constitutes this labyrinth part 60.Thus, can prevent that cooling fluid from crossing and spilling from the upper end of all plates 22 outside pedestal 2.

The following describes the formation of the labyrinth part 60 of being located at pedestal 2 front sides.As shown in Figure 9, the bottom of the antetheca 3a of protection baffle plate 3 is incorporated in the rear of all plates 22 of pedestal 2 front sides.Antetheca 3a is being fixed near the bottom of lateral surface on the support 58 that roughly is L word shape along near the cross section of extending this bottom.Each fixed head 40 from antetheca 3a approximate horizontal the shape a slice of extending and all plates 22 upper ends of being fixed in pedestal 2 front sides of support 58 is conflicted, and the fixing hole (not shown) of use and support 58, the chimeric screw 68 of the fixing hole 40a (with reference to Fig. 4) of fixed head 40 are fixed.

The bottom of antetheca 3a has the cross section of extending along the bottom and roughly is the 1st of L word shape and extends sheet 120.The 1st extends sheet 120 by fixed part 120a with extend the 120b of portion and constitute, and has the shape that the cross section roughly is L word shape.Fixed part 120a is fixed on the bottom of antetheca 3a, extends the 120b of portion and extends to vertical lower (incorporating section 20 of pedestal 2).The leading section (bottom) that extends the 120b of portion is spaced in the slightly rearward position of medial surface than the side wall portion 72b of right side groove member 70.Extend the 1st and to fix the 2nd on the sheet 120 and extend sheet 121, the 2 and extend sheet 121 and extend downwards from the 1st lateral surface that extends sheet 120, the length direction along antetheca 3a bottom extends simultaneously.

In the above-mentioned formation, the side wall portion 72b of right side groove member 70 is the 1st a pair of 120b of the portion that extends and the 2nd that extends sheet 120 that extends downwards separately from antetheca 3a bottom extends gap between the sheet 121.Thus, the side wall portion 72b and the 2nd that roughly is the 120b of the portion that extends that the 1st of L word shape extends sheet 120, right side groove member 70 by the cross section extends the tunnel-shaped that sheet 121 forms becomes Qu Luzhuan, can constitute labyrinth part 60.

In this labyrinth part 60 between the gap between the lateral surface of the medial surface of the inboard of right side groove member 70 and all plates 22 and antetheca 3a.Therefore, even cooling fluid violent flowing and crossed the side wall portion 72b of right side groove member 70 in right side groove member 70 for example also can make the imposing manner of cooling fluid weaken because of the wall with this labyrinth part 60 of formation collides.Thus, can prevent that cooling fluid from crossing and spilling from all plates 22 tops outside pedestal 2.

As mentioned above, the invention is characterized in that the machining center 1 of present embodiment has the labyrinth part 60 of Qu Luzhuan between the bottom of the bottom 21 of being located at the concavity incorporating section 20 on the pedestal 2 and protection baffle plate 3.Even for example cooling fluid violent flowing in the passing away of 20 inboards, incorporating section of being located at pedestal 2 also can utilize this labyrinth part 60 that the imposing manner of cooling fluid is weakened.Thus, can prevent that cooling fluids in the incorporating section 20 from crossing all plates 22 of pedestal 2 and spilling outside pedestal.

The machining center 1 of present embodiment is equipped with right side groove member 70 and left side groove member 80 respectively on the bottom 21 of the incorporating section 20 of pedestal 2.Thus, can make from the disperse major part of the cooling fluid that falls of workbench 8 and not flow to passing away in the incorporating section 20, and flow to the inboard of right side groove member 70 and left side groove member 80 and discharge to pedestal 2 outside.And,,, can further improve the discharge of cooling fluid and cutting powder so the cutting powder can not attach on this medial surface because of the medial surface of right side groove member 70 and left side groove member 80 is level and smooth.

Utilize each side wall portion of this right side groove member 70 and left side groove member 80, can easily constitute described labyrinth part 60.For example, can easily utilize from the incorporating section side wall portion 73c, the right diapire 3e of the right side groove member 70 that 20 21 side direction top, bottom extends lateral surface, the 1st extend sheet 100 and the 2nd and extend sheet 110 and constitute to what the bottom of incorporating section 20 21 sides were extended respectively from the lateral surface of right diapire 3e.

Like this, be not to use the sort of in the past filler to stop up the bottom 21 of incorporating section 20 and the gap between protection baffle plate 3 bottoms, but be provided with the labyrinth part 60 of Qu Luzhuan.Thus, in labyrinth part 60, do not exist the cutting powder to attach and the barrier and the thrust that form.Thus, can prevent to pile up the cutting powder in the gap between the bottom 21 of incorporating section 20 and protection baffle plate 3 bottoms.And, owing to do not use metallic plate that fixing filler uses, fix screw and nut that this metallic plate is used,, and can save the required cost of these members so installation exercise does not bother.

Lathe of the present invention is not limited to the foregoing description, can do various distortion certainly.For example, can change the configuration of the inscape of labyrinth part 60.In the foregoing description, as shown in Figure 8, be configured in by side wall portion 73c and be located at the 1st of right diapire 3e bottom and extend sheet 100 and be fixed in the 2nd near the right diapire 3e bottom the lateral surface and extend and constitute labyrinth part 60 between the sheet 110 right side groove member 70.

To this, for example also but the variation shown in the image pattern 10 1 is such, with the side wall portion 73c of right side groove member 70 is not to be configured in the 1st to extend sheet 100 and the 2nd and extend between the sheet 110, extends sheet 100 position more to the inside than the 1st and constitutes labyrinth part 160 but be configured in.This labyrinth part 160 also can form the passage of Qu Luzhuan.

In addition, but for example also the variation shown in the image pattern 11 2 is such, along all plate 22 base side of extending upward after erectting from bottom 21 is set and extends sheet 29 in the incorporating section 20 of pedestal 2.Thereby the upper end that this base side can be extended sheet 29 is clamped in the 1st extends the labyrinth part 260 that sheet 100 and the 2nd extends formation Qu Luzhuan between the sheet 110.This occasion, one-body molded by base side being extended sheet 29 with the incorporating section 20 of pedestal 2, can easily constitute labyrinth part 260.

In the foregoing description, be provided with the 1st as " forked portion " and extend sheet 100 and the 2nd and extend sheet 110, save the 2nd labyrinth part that extends sheet 110 but also can constitute.

Claims

1, a kind of lathe comprises: pedestal; Be located at the machine body of the processing work on the described pedestal; And be fixed on the described pedestal and with the lid that is the case shape of part or all covering of the top of described pedestal and described machine body, it is characterized in that,

Have the concavity incorporating section of the bottom of described lid being taken in and being supported on the inboard on the top of described pedestal,

Between the bottom of the bottom of this incorporating section and described lid, has labyrinth part.

2, lathe as claimed in claim 1 is characterized in that, comprise along the sidewall of described pedestal prolonging the board member that upward from the bottom of described incorporating section,

Bottom and described board member by described lid constitute labyrinth part.

3, lathe as claimed in claim 1 is characterized in that, comprising:

The passing away of concavity is formed on the described bottom of described incorporating section of described pedestal, is used for cutting powder and cooling fluid are discharged outside described incorporating section; And

The groove member of concavity is provided in the inboard of described passing away, extends along described passing away, and has the width dimensions shorter than the width dimensions of described passing away, constitute by diapire and the pair of sidewalls erect from the width both ends of this diapire,

Described board member is made of outside sidewall in the described pair of sidewalls of described groove member, that be positioned at the outside, described incorporating section.

4, lathe as claimed in claim 2 is characterized in that, comprising:

5, as each described lathe in the claim 2～4, it is characterized in that having in the described bottom of described lid and form forked forked portion, by the described board member of described forked portion clamping.

6, as claim 3 or 4 described lathes, it is characterized in that, be formed with the supporting station that supporting is used for fixing the workbench of described workpiece in the described bottom of described incorporating section,

Conflict with the upper end and the described supporting station of described outside sidewall inside side walls in opposite directions.

7, lathe as claimed in claim 5 is characterized in that, is formed with the supporting station that supporting is used for fixing the workbench of described workpiece in the described bottom of described incorporating section,