CN85107313A - Changeover gear of tools - Google Patents

Abstract

Tool converter comprises: a pedestal that is contained on the lathe provides two isolated mounting planes at least.Two cutter transition arm rotatably are contained on the pedestal, and are contained in the above-mentioned isolated mounting plane.A driving mechanism provides a kind of reciprocal rotatable motion, and every rectilinear motion, causes a kind of motion class to be similar to four-bar motion, reaches the parabolic motion for arm.Every arm has a clamping element, can clamp and loosening cutter.In the mode of the best, arm can Rotate 180 °, and arc length device two clamping elements are 90 ° of phase differences each other.Simultaneously, preferably mounting plane is positioned at mutual plane at 45 on the pedestal, and pedestal is be butt triangular shaped.

Description

Changeover gear of tools

The present invention relates to the Changeover gear of tools technology, wherein use the many cutters in the bed operating position to be stored in the cutter container.In the mechanism of this form, a cutter transports part and extracts one usually out selected cutter from case, and this selected cutter is transported to the operating position, equally also can go out used cutter from work shift, and cutter is turned back in the container.

The Changeover gear of tools of this form is 3,492 of United States Patent (USP), in 717, by two hinge arms 33,34 and slidably the example of a tool converter 31 being formed of drive rod 44 be well-known.Have a tool converter of hinge arms 36,37, be also illustrated in United States Patent (USP) 3,608, in 188.There is not the tool converter of hinge arms to be illustrated in United States Patent (USP) 3,608, part 18 and part 29 places in 185, and at United States Patent (USP) 3,760, cut the type tool converter for one and be also illustrated in the U.S. 4,087,901 at part 45 places in 491.At United States Patent (USP) 3,587, in 873,4,288,909 and 4,164,290, with part 32, part 298 and part 46 expressions, wherein arm is to belong to an en-block construction to tool converter respectively.When aforesaid instrument converter, various cutter switching motions are provided, and much being in operation in them is effective, for a tool converter, also has a requirement, can shorten the time of crossover tool exactly, promptly shorten from the main shaft of operating position and shift out a used cutter and new cutter is replaced its whole time with one.Although require conversion one about 6 seconds of the time average of cutter,, can not occur machining yet and turn round.If tool change time can shorten, accordingly also shortened the time that machine does not carry out machining, for example: during a lathe tool changing commonly used, when machine is when not working, more following steps can occur: converter turns to main axle cutter dislocation; Then, the cutter in the converter clamping spindle; Cutter is drawn out main shaft; Old cutter is rotated and leaves, and the while one is sent new cutter rotation to the main shaft zone; New cutter advances main shaft; Cutter unclamps from converter and places in the main shaft; Then, converter rotates to cutter and stores dislocation.

Major advantage of the present invention is: an improved Changeover gear of tools is provided, and this Changeover gear of tools can shorten the conversion for cutter basically, and lathe needs the off-air time.Another advantage is: a Changeover gear of tools simple in structure is provided, and is easy to adapt to existing lathe and toolbox.Also have an advantage to be: the Changeover gear of tools of durable structure to be provided, can also to be provided at many positions of changing between the cutter between container and the main tapping simultaneously.

This tool converter has overcome the weakness of prior art, thereby obtains aforesaid advantage, and this tool converter comprises: be installed in a pedestal on the lathe, this pedestal provides at least two mounting planes of being separated by.The first and the 2nd cutter transition arm is to be installed on the pedestal rotationally and pivotally, and in the mounting plane of being separated by.Together with pedestal and the every device that arm turns round, not only produced reciprocating motion but also produced and rotatablely moved, and above-mentioned every rectilinear motion.Clamp apparatus is to accept a cutter and clamp-on tool, and this clamp apparatus is placed in the outer end of each root arm.

Two arrangements that arm moves: when one when the main shaft axis goes out used cutter, another root arm to main axle moving one new cutter.Therefore, two arms are to realize their effects separately and mobile in phase, feasible after old cutter is eliminated out main shaft, and new cutter enters main shaft.Its result, in main shaft, the cutter intermediate conversion can not be undertaken by the speed of existing technique device.

At the machine stopping period, the reciprocal rotatable motion of tool converter and the rectilinear motion that causes together with two arms have determined time of new cutter and used quick intermediate conversion.Have an arm and a driven wheel provides this compound motion by a gear, wherein each arm safety is passed a gear and pivoted motion, and driven wheel is in two gears engaged that respectively carry an arm.This driven wheel is contained on the end of driving shaft, and pinion is contained on the other end of driving shaft, is contained in tooth bar and pinion on the housing.Bar is connected on the axle that stretches out from every arm, and pin stretches out from bar and this pin is placed in the deep-slotted chip breaker in the base, and this design is actually one four link motion, and this motion allows arm to move by the mode of front.Preferably the rotation of these two arms is worked in 180 ℃, and two clamping elements all are the terminals of opening wide, in the whole time, and the location of two clampings 90 ℃ of phase places of each other approximately being separated by.Tool converter not only of the present invention plays the effect of four-bar motion, but also causes a kind of parabolic motion, and this parabolic motion is the motion of the arm with regard to the intermediate conversion of cutter between case and main tapping.Best, the mounting plane of tool converter is in pedestal, is placed to the opposing face of about 45, and this pedestal has one and roughly is the triangular shaped of butt.

Tool converter with afore-mentioned characteristics is placed on the pedestal of lathe at an easy rate, and lathe has the dress knife bar of being supported by pedestal commonly used.A cutter container supporting much will be contained in the interior cutter as processing work of main shaft.In order to reach aforesaid purpose, tool converter is contained on the lathe base rotationally.

Aforesaid and other superiority of the present invention can be narrated by the reference accompanying drawing, can also obtain by the equipment of expression illustration in this manual, and these superiority can become more obvious from following being described in detail.

Brief description of drawings:

Fig. 1 is the lathe side view that has the improved Changeover gear of tools of the present invention;

Fig. 2 is the lathe front view among Fig. 1;

Fig. 3 is the lathe vertical view among Fig. 1;

Fig. 4 is the driving mechanism fragmentary top pseudosection of tool converter of the present invention;

Fig. 4 A is that the fragmentary top of various dividing plates of expression and groove is a profile, and these dividing plates and groove are to be arranged in the casing of tool converter in order to regulate the part in the transmission mechanism;

Fig. 5 is the partial view that is illustrated in a converter of the driving mechanism part among Fig. 4;

Fig. 6 is transporting a cutter in lathe, the upward view of the parabolic motion of an arm;

Fig. 7 to Figure 14 and Fig. 7 A to Figure 14 A, these figure are sketches of the various motion work steps of expression, these work steps represent to take out and place a cutter, and this cutter is the container from the main shaft of lathe to tool converter of the present invention, and the figure that indicates " A " son simultaneously is the front view of respective digital figure.

The narration of most preferred embodiment:

Below with reference to explanation, Fig. 1 particularly, 2 and 3, these figure are multiple operation automatic machine tools 11 that explanation has improvement Changeover gear of tools 10 of the present invention.Just as shown in these figures, this machine has a lathe bed 13, and it drags a workbench 14 and at a lathe bed right cylinder 24 behind.This right cylinder 24 can drag a main tapping 22, and main shaft 20 is supported in the main tapping, and this main shaft 20 is fit to hold a cutting knife body as finishing a manufacturing procedure.People can understand: using the cutting knife in machine, is to be contained in the modular toolholder, and this cutter holder is fit to be contained in the main shaft 20.In this narration, the combination of tool-holder and its relevant cutter generally will be counted as a cutter, and appliance 26,23 or part 30 expressions.

Axis by planker 17 supporting tables 14 relative main shafts 20 moves horizontally, and the route that workbench 14 moves is commonly referred to as the X-axis line and moves.Workbench 14 (not shown) on to groove is dragged, and a pair of groove is contained in the top surface of saddle 17 for the bottom surface with workbench 14 is slidingly connected.

Axis by lathe bed 13 supporting saddles 17 relative main shafts 20 moves horizontally.The route that saddle 17 moves is commonly referred to as z axis and moves.For this reason, saddle 17 is supported in (not shown) on a pair of groove, and a pair of groove is placed on and covers below 27 and be contained on the top surface of lathe bed 13, is slidingly connected as the bottom surface with saddle 17.

Turntable 15 usefulness workbench 14 are supported, and turntable is suitable for holding a carriage 16, and the workpiece (not shown) that process is contained on the carriage 16.This machine comprises a reciprocator 19, and this mechanism 19 is supported on the tailstock 18.This reciprocator is equipped with the carriage 16 of the workpiece of having processed and the new carriage 16 that a new workpiece is housed is provided accepting, and new carriage 16 is to be contained on the turntable 15.The reciprocating apparatus of changing workpiece on turntable 15 is very ripe technically, therefore, does not do detailed explanation at this.

Main tapping 22 can move on a vertical track, and this track is perpendicular to the track of workbench 14, and this track is commonly referred to as the Y-axis line and moves.For this reason, right cylinder 24 provides an opening, and the groove (not shown) slidably combination of vertical track by matching determined by a pair of vertical track 25 in this opening portion ground.The groove that matches is on supporting spindle head 22 posts 35.

With suitable driving mechanism respectively along the track of X, Y and z axis direction, push work platform 14 and main tapping 22 and saddle 17, in addition, power set are supplied with the turntable 15 that has carriage 16, for workpiece is contained on the carriage 16 to cutter and then workpiece.All these move under the control that is preferably in a digital control circuit carries out, and this digital control circuit is included in the control centre 77.Again, a suitable and normal driving mechanism (as: shown in the piece number 76) that uses is supplied with rotary main shaft 20, and opens and close a collet, the purpose of cutter in return, and this chuck is bearing in the main shaft 20.

Tool converter 10 generally is connected on the right cylinder 24, can be clear that in Fig. 2 and Fig. 3.Pivot arm 38 provides a pivotal attachment, and pivot 41 is connected to right cylinder 24.A piston oil-cylinder mechanism 39 that has piston arm 40 commonly used provides the motion around 90 ° of pivot commentaries on classics.With reference to figure 1, this cutter exchange mechanism is contained in above the toolbox 12 with pivot and moves, and this toolbox 12 comprises a support 29 of the sprocket ring 28 of the instrument of transporting.Sprocket chain 28 in the tool box is often used as in the multiple operation automatic machine tool, thereby its details is not narrated.As long as it is just much of that to say that it comprises many different cutters, for example: part 26 is that the sprocket chain along U-rail is transported to selected position and moves.As shown in Figure 1, Changeover gear of tools 10 has a rotating arm 52, is positioned at the sprocket chain route in order to accept cutter 26, and arm 52 stretches out from the housing or the pedestal 37 of Changeover gear of tools.

Especially with reference to Figure 4 and 5, narrate the details of tool converter 10.A housing 37 has a center cavity 42, and this center cavity holds a piston gear 44, and this piston gear 44 is fixed on an end that passes whole central shaft 43.One drives the other end that bevel gear 45 is fixed on axle 43, and is blocked by shelves cover 46. Arm 51 and 52 is contained on the body 37 rotatably, and fixes around pivot by gear 47, two gears 47 all with bevel gear 45 engagements.The installation of each arm and driving mechanism identical are only narrated the driving mechanism relevant with arm 52 specially, and for two identical parts number expressions that the arm driving mechanism is relevant.Gear 47 is by 49 location, an interval, and it passes the hub body 79 that has a toroidal cavity 53 in a kind of rotatable mode and remain in the toroidal cavity 53, and this cavity 53 holds an axle.Support hub bodies 79 with interval 49 by an arm 80.Stop gear 47 with what a ring washer 55 of split ring form provided suitable rotation, this gear 47 has a prominent picture 56 and isolates ring wall 48, and this ring wall 48 is to determine cavity size.A hole 31 is passed in gear 47 and the axle sleeve 58, and axle 59 rotates in axle sleeve 58.Bar 60 usefulness pins 61 are fixed on an end of axle 59, and this end is opposite with an end position of dress arm 52.Bar 60 is rotations below the arm 80 in 81 at interval.A pin 62 is to stretch from bar 60, and the deep-slotted chip breaker that it is positioned on the housing 37 is interior and mobile in groove.Cover plate 50 is contained on the housing 37, and (for example :) with the securing cover plate 50 of screw on housing 37, this cover plate 50 has covered the space that is not touched by gear 47.For fixed cutting tool 26, left arm 51 and 52 all is equipped with the clip 64 with a roller-type latch 65.

Be clear that in Fig. 4 A wall 80 puts in the open section of housing and forms a deep-slotted chip breaker 73, this deep-slotted chip breaker 73 will hold the elongation cover 57 of axle 59 and gear 47.This deep-slotted chip breaker 73 also provides 180.Track is as the usefulness of axle 59 around 79 rotations of hub body, and the back illustrates with reference to Fig. 6.

The drive unit of rotation pinion 44 is described referring now to Fig. 5.This device has a toothed rack 66 and pinion 44 engagements, is connected to again with hour rack 66 on the piston rod 69 of piston 67, and piston oil-cylinder mechanism 68 is used for driving tooth bar 66 and moves by rectilinear orbit.In order to drive tooth bar 66, hydraulic tube 74 and 75 is connected with piston oil-cylinder mechanism 68.

The most outstanding advantage of tool converter is that the narration of contact machine tooling operation shows.At Fig. 6 and Fig. 7-14, can show well among Fig. 7 A-14A.The mobile of arm 52 is illustrated among Fig. 6, will be noted that: a kind of parabolic motion is to the influence of the cutter on arm 52 and the arm 26.Same motion also will influence arm 51, and illustrate by the dotted line 72 of route of expression arm 52.Because axle 59 passes the holes 31 in the gear 47, so the rotation by gear 47, axle 59 is again at the movable body in the deep-slotted chip breaker of gear 47 axis, thereby obtains above-mentioned parabolic motion around the composite rotation of the arm 52 of axle 59 axis.Clearly find out again together with Fig. 6: in fact deep-slotted chip breaker 73 is in housing 37, so housing 37 has been placed restrictions on the stroke of axle 59, the stroke range of axle 59 is to be determined by the wall surface 78 of housing 37 and 82.Simultaneously, the pin 62 that is fixed on the bar 60 moves in deep-slotted chip breaker 63, and with the directly mobile arm 52 of the mode of straight line, this arm 52 need or shift out on the position of main tapping 22 cutter 26 shift-ins again, and this position is to lean against the main tapping front tightly.The motion of arm 52 is arcs and straight-line synthetic, and this motion provides a kind of parabolic motion for arm 52 and arm 51.In fact, owing to the arc rotation and the straight line that utilize arm 52 move the effect of playing one four link motion.

Fig. 7 to 14 and Fig. 7 A to 14A represent from the sprocket chain of toolbox, with one new cutter 26 are replaced one the middle replacing program of old cutter.Pointed out that as the front Fig. 7 to 14 is the views from lathe about 11, and the figure that uses " A " to mark is the front view of corresponding figure number.Fig. 7 and Fig. 7 A represent tool converter 10 beyond ready position and workspace, are unloaded and front that be in case 28 with the clip of left arm 51.This is the beginning of cutter conversion program, and machine has stopped and cutter is prepared conversion.In Fig. 8, in main shaft 20, change the tool converter 10 of tool location by means of pivot arm 38 shift-ins, change 90 ° around pivot, simultaneously, during main shaft rotated, the clip of right arm 52 shift-in combined with old cutter 23 in the main shaft.In habitual mode, a collet is arranged in main shaft 20 with loosening cutter 23.Simultaneously, have the right arm 52 of the tool converter 10 of cutter 23, from main shaft 20, shift out and upwards rotate, and the left arm 51 that has next cutter 26 in clip simultaneously rotates, and cutter shift-in main shaft 20, is illustrated among Fig. 9 and the 9A.Then, collet clamps new cutter 26 and enters in the main shaft 20.Shown in Figure 10 and 10A, tool converter 10 changes 90 ° of origin-locations that turn back to it around pivot, and enters the storage area near toolbox sprocket chain 28, is retained in the main shaft 20 with stylish cutter 26.Must be pointed out: the step of front all occurs in the idle state of machine.Although the cutter conversion program is not finished, can begin machining at this stage machine.

The next procedure of cutter conversion is illustrated among Figure 11 and Figure 11 A, being in unloaded left arm 51 upwards rotates, and the right arm 52 that has the old cutter 23 in clip rotates mobile cutter and enters empty socket, and this empty socket is to be in the sprocket chain of toolbox as the preparation state.Figure 12 and 12A represent cutter search effect, are that tool converter 10 removes from the cutter storage box, leave the old cutter 23 in the sprocket chain 28 of toolbox simultaneously.Sprocket chain 28 is rotated up to the cutter 30 that will use and is in ready position.Preferably illustrate together with Figure 13 and 13A.In this step, tool converter 10 returns, so that the clip of right arm 52 inserts toolbox to cutter as SBR.Last step in the cutter exchange is to be illustrated among Figure 14 and the 14A, and the right arm 52 that has a tool converter of cutter 30 is removed the cutter storage area and upwards rotated, and the left arm 51 that has a tool converter 10 of empty clip rotates.As can be seen: this program is finished at present, is to be in reverse order for the cutter transition arm 51 of next program and 52 position.Must be pointed out: the time that those steps of cutter intermediate conversion are finished in requirement is very short.

Can also recognize: during 90 ° of rotations of pivot arm 38,, make cutter that the front of main tapping 22 is provided from cutter storage area (providing as container 28) by the driving (just as shown in Figure 3) of piston oil-cylinder mechanism 39.Again, by the supply of the compression body in piston oil-cylinder mechanism 68, cause the rotation of arm 51 and 52, this piston oil-cylinder mechanism 68 causes that again tooth bar 66 returns and moves forward, and makes pinion 44 rotate (just as shown in Figure 5) simultaneously.Pinion 44 is turning cylinder 43 again, drives bevel gear 45 transmitting gears 47 simultaneously.

The front of present embodiment is described in detail expression example of the present invention, and clearly find out: present embodiment provides a kind of tool converter of improvement to transport cutter with peak efficiency, especially is designed to finish in the shortest time and transports.Not only shorten the total time of cutter conversion, the more important thing is, shortened the time that the multiple operation automatic machine tool does not improve machining.Tool converter of the present invention is applicable to any multiple operation automatic machine tool that has a rotating shaft and a toolbox storage area, and wherein cutter can be removed with the arm of Band clamp.The structure of tool converter is durable, therefore requires minimum maintenance, simultaneously, also provides good performance.

In order to disclose the structure of a real-world operation, thereby can use the present invention expediently, although the embodiment of the invention was described in detail, but we understand: the Special Equipment of having narrated is purpose of the present invention as an illustration just, under the prerequisite of scheming surely without prejudice to the determined the present invention of following claim with scope, can embody novel feature of the present invention with other version.

Claims (25)

1, a Changeover gear of tools is as the cutting element of exchange in the lathe operating position, and it is characterized in that: a pedestal is supported above-mentioned operating position; Be contained in a container on the pedestal; This container supports many cutters, uses in order to the operating position; Cutter in container gives fully position, it as accept to be sent to the operating position one the cutter that has chosen, also send the preceding used cutter of storage from the operating position as acceptance; A Changeover gear of tools housing; Prepare between position and the operating position at cutter, support the device of above-mentioned housing to move relative to said base; In order not only to pivot but also whole mobile purpose, improve a pair of cutter transition arm of supporting by above-mentioned housing; For the fixing instrument that will transmit, a clip is contained on the above-mentioned arm again; The device that allows two arms all rotate around pivot center separately simultaneously is contained in the housing, the pivot center of two arms moves in giving fixed track simultaneously, thereby clip moves in track, former used cutter is sent to from the operating position, and entered the operating position.

2, be characterised in that by the described Changeover gear of tools of claims: above-mentioned housing is contained on the pivot arm; In order between cutter ready position and operating position, to move above-mentioned housing, above-mentioned arm pivotally is supported on the pedestal.

3, a tool converter that is contained on the lathe is characterised in that: a housing is contained on the above-mentioned lathe, has two isolated mounting planes on the housing at least; The the 1st and the 2nd cutter transition arm pivotally is contained in the isolated mounting plane on the housing; Also have the device that turns round together with above-mentioned housing and above-mentioned every arm, produce reciprocal rotatable motion, and the rectilinear motion of above-mentioned every arm; The device that is contained in every arm outer end is as accepting a cutter and clamping this cutter.

4, be characterised in that by the described Changeover gear of tools of claim 3: said apparatus produces reciprocal rotatable motion, and the rectilinear motion of every arm, be by a gear that turns round together with above-mentioned every arm and be in a driven wheel that is meshed with said gear and determine.

5, be characterised in that by the described Changeover gear of tools of claim 4: the fixing above-mentioned driven wheel of axle; Pinion is on above-mentioned axle; One toothed rack is in order to be contained on the said base with above-mentioned pinion.

6, be characterised in that by the described cutter transformational structure of claim 4: above-mentioned arm connects said gear rotationally by an axle, and comprises: a bar is connected to every arm; One pinion stretches out from above-mentioned bar; A pin is contained in the deep-slotted chip breaker of housing slidably, and one four connecting rod fortune of gained is to working to above-mentioned every arm.

7, be characterised in that by the described Changeover gear of tools of claim 4: above-mentioned two isolated mounting planes are to be determined by the opposite face in above-mentioned.

8, be characterised in that by the described Changeover gear of tools of claim 6: produce the said apparatus of above-mentioned reciprocal rotatable motion, can produce 180 ° of rotations.

9, be characterised in that by the described Changeover gear of tools of claim 8: on the outer end of every arm,, be to determine about 90 ° of the mutual phase difference that two clamping elements are located by the clamping at the two ends of open end as accepting one the device of cutter

10, be characterised in that by the described Changeover gear of tools of claim 6: the arrangement of said gear, pin and deep-slotted chip breaker for above-mentioned arm, produces a kind of parabolic motion.

11, be characterised in that by the described Changeover gear of tools of claim 10: two mounting planes become about 45 location toward each other.

12, be characterised in that by the described cutter transformation mechanism of claim 11: above-mentioned housing comprises the pedestal with the triangular form shape that roughly is butt.

13, be characterised in that by the described Changeover gear of tools of claim 3: a pair of rotating gear is contained on the housing with their rotating shaft mutually at angle; Above-mentioned each gear of bearing, this bearing axis is parallel to Gear axis, and bearing axis radially depart from the rotary gear shaft axis relevant with it; The axle journal of an axle and said gear have outside elongation end in each bearing, and a cutter transition arm is fixed to the elongation end of each root axle, and from then on hold radial extent; Connecting every axle rotates around the axis of itself, and this is the moving body in a deep-slotted chip breaker, this deep-slotted chip breaker is to rotate with the rotation of said gear, the moving body that above-mentioned every cutter transition arm and its relevant axle are moved together, and it is wound with pass axis rotation simultaneously, transmits operation thereby finish cutter.

14, a machine tool is characterised in that: a pedestal; A tool bearing axle by the pedestal support; A cutter container supports many cutters, and these cutters are prepared to put in the above-mentioned axle as the work operation; A tool converter by base support; This tool converter comprises: a pedestal provides two isolated mounting planes at least; The the 1st and the 2nd cutter transition arm rotatably is contained on the said base, and is contained in the above-mentioned isolated mounting plane; Clamping device on the outer end of every arm is as holding and clamping a cutter; Together with pedestal and the every device that arm turns round, produce a kind of reciprocal rotatable motion, and every arm goes out a cutter and replaces it and a kind of rectilinear motion of carrying out with another cutter from above-mentioned axle clamp.

15, be characterised in that by the described a machine tool of claim 14: said apparatus produces reciprocal rotatable motion, and the rectilinear motion of every arm, be by a gear that turns round together with every arm and be in a driven wheel that is meshed with said gear and determine.

16, be characterised in that by the described a machine tool of claim 15: the fixing above-mentioned driven wheel of axle; Pinion is contained on the above-mentioned axle; One toothed rack is in order to be contained on the said base with pinion.

17, be characterised in that by the described a machine tool of claim 15: above-mentioned arm pivotally connects said gear by an axle, and comprises: a bar is connected to above-mentioned every arm; One pinion stretches out from above-mentioned bar; Cannelure in housing holds above-mentioned pin with mode slidably, makes one four link motion work to above-mentioned every arm.

18, be characterised in that by the described a machine tool of claim 15: above-mentioned two isolated mounting planes are to be determined by the opposite face in the said base.

19, be characterised in that by the described a machine tool of claim 17: produce the said apparatus of reciprocal rotatable motion, can produce 180 ° of rotations.

20, be characterised in that by the described a machine tool of claim 19: on the outer end of above-mentioned every arm, acceptance one is the device of cutter to be clamped to determine about 90 ° of the mutual phase difference of two clamping elements location by two of open end.

21, be characterised in that by the described a machine tool of claim 17: the arrangement of said gear, pin and deep-slotted chip breaker for above-mentioned arm, produces a kind of parabolic motion.

22, be characterised in that by the described a machine tool of claim 21: two mounting planes become about 45 contraposition toward each other.

23, be characterised in that by right right 14 described a machine tool: the pivot device together with above-mentioned lathe base and tool converter pedestal turn round pivots the above-mentioned tool converter relevant with lathe.

24, at the ready position of cutter container with have the fixedly method (above-mentioned cutter fixedly clip is to be contained in respectively on a pair of cutter transition arm that can shift separately) of exchange cutter between the operating position of the lathe of clip of a pair of cutter, it is characterized in that: in the ready position of cutter container, have a clip and the work step of new cutter combination; In order to move two clips that arm is relevant separately, two arms move in the track that separates simultaneously, thereby press from both sides the cutter that makes new advances by the cutter ready position, meanwhile, and empty clip shift-in cutter ready position; Two arms move to the operating position in phase, Kong clip shift-in operating position combined with former used cutter thereupon, in order to move two clips, two arms move in the track that they separate simultaneously, thereby by the outstanding used cutter in the past in operating position, meanwhile, in new another clip of cutter shift-in, and enter the operating position, two arms move to the cutter ready position in phase; In order to move their relevant clips, two arms move in the track that separates simultaneously, thereby the cutter shift-in cutter ready position in a clip meanwhile, and another clip has been left the cutter ready position.

25, the method by the described exchange cutter of claim 24 is characterised in that: above-mentioned two arms had not only moved but also had moved with linear fashion in garden arc mode.

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