JPH01109041A - Complex machine tool and spindle structure thereof - Google Patents

Abstract

PURPOSE:To make the spindle cross angle of a spindle table and a cutter table variable by arranging a first spindle assembly movably on a machine body and a second spindle assembly turnably with respect to the first assembly, while further providing spindles having same structures rotatably to respective assemblies. CONSTITUTION:A first spindle assembling table, i.e., a cutter table 32, is arranged movably on a machine body 2 and a second spindle assembling table, i.e., a rolling spindle table 3, is provided turnably with respect to the cutter table 32. Then a work is held by a chuck 27 of a spindle 13 and the rolling spindle table 3 is rotated by a predetermined angle with respect to the spindle 13 of the cutter table 32, thereafter cross angle of the axis CT3 of the spindle 13 of the cutter table 32 for holding a tool and the axis CT1 of the spindle 13 of the rolling spindle table 3 is set to a predetermined angle and machining is made. In such a manner, cross angle between the spindle of the spindle table and the axis of the spindle of the cutter table can be varied within a predetermined angle range.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention can perform turning, milling, etc. on a workpiece. Concerning multi-tasking machine tools and spindle structures of multi-tasking machine tools.

(b>, Problems to be Solved by the Invention Conventional multi-tasking machine tools are based on the relative positional relationship between the main axis of the headstock on which a workpiece can be mounted and the main axis of a tool rest on which a tool can be mounted. There are two types of machines.In other words, multi-tasking machining@machines include: - those in which the axes of the main axis of the headstock and the main axis of the tool post are perpendicular; The centers are parallel, ■ The axis r of the main axis of the headstock and the main axis of the tool post
& Things that can be made orthogonal or parallel,
Depending on the shape of the workpiece to be machined, one of these methods (1), (2), and (2) is selectively used to machine the workpiece. but.

Today, as workpiece machining details become more complex, the relative positional relationships between these spindles are explained above.

The intersection angle between the main axis of the headstock and the main axis of the tool post can be changed arbitrarily within a predetermined angle range without having to fix it as shown in ■, making it flexible for future workpiece machining to become more complex. There is a need for the development of multi-tasking machine tools that can handle this.

Furthermore, in order to cope with the diversification of the processing contents of the workpieces to be machined, tools can be selectively attached to these spindles in addition to various workpiece holding means such as chucks and pallets. It is desired to develop a main IPJ structure for multi-tasking machine tools.

Furthermore, in addition to selectively attaching a workpiece holding means and a tool to the main spindle, it is also possible to feed a long bar-shaped workpiece to the workpiece holding means attached to the main spindle with the main spindle xi. Development of the main shaft structure of machine tools is desired.

In view of the above-mentioned circumstances, it is now possible to arbitrarily change the precise intersection angle between the main axis of the headstock and the main axis of the tool rest within a predetermined angle range. The first objective is to provide a multi-tasking machine tool. Also.

By selectively attaching various workpiece holding means and tools to these spindles, it is possible to respond to diversification of workpiece machining contents. The second purpose is to provide a main shaft structure for a multi-tasking machine tool. Furthermore, the work holding means and tools can be selectively attached to the main spindle, and a long bar-shaped work can be fed to the work holding means attached to the main spindle in a manner that passes through the main spindle. The third purpose is to provide a main shaft structure for a multi-tasking machine.

(cJ, means for solving the problem, i.e., 1) Among the present invention, the invention of a multi-tasking machine tool, which is the first invention, has a machine body (2), and the machine body (2) has an i-th
A main shaft assembly (32) is provided so as to be freely movable in at least one direction, and a second main shaft assembly (3) is provided so as to be freely rotatable relative to the first main assembly (32). , the first and second principal IIIffi solids (32,
3), the main shafts (13, 1
3) is rotatably provided, and a work holding means (27, 31) or a tool (
23) is selectively constructed by freely changing M'fA to G.

Further, in one aspect of the present invention, a second invention of the main shaft structure of a multitasking machine tool has a main body (13a), and the main shaft structure of the main body (13a)
, the engaging body holding machine 41 (13d-19, 21, 22, 2
5), and further a tool (23) is provided on the main body (13a).
) or the work holding means (2'l 31) is selectively and detachably attached via the engaging body holding mechanism (13d, 19.21.22.25) to make one more piece. Among the inventions, the third invention of the main shaft structure of a multitasking machine tool has a main body (13a), a through hole (L3b) is formed in the direction of the axis (CTi) of the main body (13a), and the through hole (L3b) is formed in the direction of the axis (CTi) of the main body (13a). Engagement body holding means (21, 22) are provided in the hole (13b).
is detachably provided so that the tool (23) can be attached to and detached from the through hole (13b) via the engagement body holding means (21, 22), and further, a workpiece holding means is provided on the main body (L3a). Clamp machine! (25°), the work holding means (27
, 31) so as to be connected in series with the through hole (13b).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in one drawing, and therefore, this description is not limited to the description on the drawing. r(d) below,
The same applies to the column "Effect".

(d) 0 effect With the above-mentioned configuration, the invention of the multi-tasking machine tool which is the first invention of the present invention, when machining the workpiece (30.36), the second spindle assembly (3) ! - Each main shaft (13, 13) of the first and second main shaft assemblies (32, 3) is rotated by a predetermined angle with respect to the first main shaft assembly (32).
The intersection angle of the axes (C70, CTI) of the axis (C70, CTI) is arbitrarily changed within a predetermined angle range (for example, right angle), and
3, 13), the workpiece (30°36
) tc workpiece holding means (27, 31) and acts to mount the tool (2:3) on the other spindle.

Further, in the present invention, the second invention of the main 4111 structure of a multi-tasking machine tool has a workpiece holding means (27, 31) or a tool (23) in one main body (13a), and an engaging body holding mechanism. ft selectively via (13d, 19.21°22.25)! l! It acts like this.

Furthermore, the third invention of the present invention, which is the main structure of a multi-tasking machine tool, has a tool (23) in the main body (L3a).
is attached via the engaging body holding means (21, 22), and the wire holding means (27, 31) is attached to the main body (13a) via the work holding means clamping machine 4'J (25). It acts to connect in series with the through hole (L 3 b).

(e), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a diagram showing an embodiment of a machine tool for compound machining according to the present invention, and FIG. 2 is a right side view of FIG. 1.

FIG. 3 is a diagram showing how a workpiece is machined using the multi-tasking machine tool shown in FIG. 1.

4aQ is a diagram showing an example of the main spindle of the swinging headstock of the multi-tasking machine tool shown in FIG. FIG. 3 is a cross-sectional view showing the main part of the main shaft portion shown in the figure.

FIG. 7 is a diagram showing another example of the tool holding device attached to the main shaft of the fourth V4.

FIG. 8 is a front view showing another embodiment of the multitasking machine tool according to the present invention, FIG. 9 is a plan view of FIG. 8, and FIG. 1O is a right side view of FIG. 8.

Fig. 11 is a front view showing another embodiment of the multitasking machine tool according to the present invention, Fig. 12 is a plan view of Fig. 11, Fig. 13 is a right side view of Fig. 11, and Fig. 14 is the invention of the present invention. FIG. 15 is a front view showing yet another embodiment of a compound power machine tool according to 141ii! A plan view of I.

FIG. 16 is a right side view of FIG. 14.

The multi-tasking machine tool 1 has a machine body 2 as shown in FIG.

A swing headstock 3 is provided so as to be freely pivotable in the directions of arrows A and B. The swinging headstock 3 has a swinging arm portion 5 and a main shaft portion lO, and the swinging arm portion 5 is connected to an arm body 5.
a and an axis 5b.

That is, a shaft 5b is supported on the side surface 2a of the fuselage 2 via a plurality of bearings 6 so as to pivot in the directions of arrows A and B, and the right end of the shaft 5b in FIG.

The arm body 5a is provided a predetermined distance away from the side surface 2a to the right in the figure. Furthermore, a worm wheel lure is provided at the left end of the shaft 5b in FIG.

It is installed in the fuselage 2 in such a way that it can rotate in the direction of the arrow A along with the $15b, and the worm wheel 7 has a
A worm 9 that is rotatably provided is engaged with the worm.

In addition, the arm main body 5a shown in FIG.
A main shaft portion 10 that constitutes a main shaft portion 10 is provided, and the main shaft portion 10 has a casing IL.

The casing 11 includes a chuck 27 and a pallet 31, which will be described later. Furthermore, the main shaft 13 on which the tool 23 can be mounted is the fourth
As shown in the figure, through several 1M bearings 12,
The main shaft 13 is rotatably supported in the directions of arrows C and D about the axis CTI of the main shaft 13, and the main shaft 13 has a cylindrical main body 13a. A gear 15 is attached to the gear 15, and a rotation drive mechanism (not shown) is connected to the gear 15 to rotate the main body 13a (therefore, the main #13) in the directions of arrows C and D. .

In addition, a worm wheel L6a is attached to the fourth outer circumferential surface of the main body L3a, and a worm L6b is provided on the right side of the center of the worm wheel L6a so as to be able to rotate once. It is provided in such a manner that it can freely swing in the direction of arrow J around the center CT2. Note that the worm 16b has a main shaft L when milling, etc.
A CI+ drive mechanism (not shown) is connected to control the rotation of the worm wheel 16a at low speed. Drive a drive mechanism (not shown). Then, the main shaft 13 is rotated by a predetermined angle in the directions of arrows C and D via the worm wheel 16a, and the shaft center C is rotated by a predetermined angle.
C-axis control is performed with T1 as the center.

Further, in the main body 1:3a of the main @ 13 shown in FIG. 4, a through hole 13b is formed through the main body 13a in the directions of arrows E and F, which are vertical directions in the figure, along the axis CTI of the main body 13a. The cage 1 through hole isb is formed from a straight portion 13c, a tool holding portion 13d, and the like. Here, straight part 1
3c is formed so that the inner diameter is the same in the directions of arrows E and F along the fine CT of the main body 13a, and a tool holding part L3d is formed in the upper part of the straight part 13c in FIG. 4 in the direction of arrow E. It has a tapered shape with the inner diameter increasing towards the end. Furthermore, the tool holding part 13d and the straight part 1
3c, there is an enlarged diameter portion 13e.

It is formed so that its inner diameter is larger than the inner diameter of the straight portion 13c of the through hole 13b.

Further, a tapered portion 13j is formed between the enlarged diameter portion 13e and the straight portion 13c, the inner diameter of which decreases toward the bottom in FIG.

By the way, a tool holding device 1117 is removably installed in the through hole 13b of the main body 41113 shown in FIG. 6, and the tool holding device 17 includes a drawbar 19, an adapter 22, and the like. The drawbar 19 has a tube 20, and the tube 20 is inserted into the through hole 13b so as to be movable in the directions of arrows E and F. Also - Ministry i 2
At the top of the diagram of Q.

A circular hole 20a is penetrated in the direction of arrows G and H, which are directions perpendicular to the main axis CTI of 1:3.

Between the through hole 13b of the main shaft 1; 3 and the groove 21b of the engaging member 21, which will be described later, a ball 2ob is freely relocatable via a hole 20a drilled in the cylinder 20, as shown by arrow G.

It is fitted in such a way that it can move in the H direction.

Further, a piston portion 2oc is formed at the lower end portion of the cylinder 20 constituting the drawbar 19 in FIG. The moving drive mechanism 40 has a main body 41 that is provided to cover the core part 20 so as to be slidable in the directions of arrows E and F, and the upper end of the main body 41 in the figure is
The main shaft] 3 is fixed to the lower end in the figure. Also 1 body 4
1, the cylinder 41h is formed in an annular shape surrounding the cylinder 20 of the drawbar 19, and the cylinder 71h
Lh is provided with a piston 41e formed in an annular shape so as to move in the directions of arrows E and F along the cylinder 20 between the first end surface 41.5 and the second end surface 4Lk of the cylinder 4th. ing. In addition, an oil chamber 41c is provided in the cylinder 41h.
is formed in an annular shape separated by the piston portion 20c of the cylinder 20 and the bottom surface 41m of the cylinder 41h.
Furthermore, cylinder 41. In h, oil v'4th is
The cylinder 20r7) is formed into an annular shape separated by the piston portion 20c and the piston 41e. Also,
Inside the cylinder 41h, an oil chamber 41a and a piston 41e are provided.
It is formed in such a manner that it adjoins the oil chamber 41b via the oil chamber 41b. A hole 41f is formed in the upper end of the oil chamber 41a in the direction of arrow E, and a spring 41 is formed in the hole 41f.
d is provided to press the piston 41e in the direction of arrow F. In addition.

A 9-distributor 26 is provided at the lower end of the body 1:3a of the main shaft 13 in the figure to cover the moving drive mechanism 40.
Cooling water and hydraulic oil are supplied to the 3rd class.

Further, an engaging member 21 constituting the draw bar 19 is removably fitted into the upper end of the wI20 shown in FIG. 6, and an outer circumferential surface 21a of the engaging member 2'' ,
A hemispherical groove 21b is bored. Note that a part of the ball 20b mentioned above is in contact with the groove 21b, and
A pressing rod 21d is attached to the bottom surface 21c of the engaging member 21 in the direction of arrow E.
It is provided in a shape that protrudes in the direction. A flange portion 21e is formed at the center of the pressing rod 21d, and the engaging member 21 further includes a plurality of claws 21f having a single elasticity.

21f is supported such that its lower end 21g in the figure is sandwiched between the bottom surface 2Lc of the engagement member 21 and the flange 21e. In addition, the retaining member 21 has a single-stage hole 21i.
It is bored through in the direction of arrows E and F, and has a stepped hole 21.
A bolt 21k is fitted into the bolt 21k with its tip screwed into an adapter 22, which will be described later. In addition, one step hole 21
A spring 21j is contracted to surround the bolt 21 at i.

Incidentally, an adapter 22 having a tapered outer shape is fitted and held in the tool holding part 13d of the main spindle 13 shown in FIG. , F' are drilled through the force direction.

At the lower end of the adapter 22 in the figure, an engagement surface 22d is bored in a cylindrical shape in the axial center (2'r1 direction) of the main shaft 13.
An enlarged diameter portion 2 is provided between the engagement surface 22d and the tool holding portion 22a.
2b is bored so that its inner diameter is larger than the inner diameter of the engagement surface 22d. Note that the adapter 22 is equipped with a tool 2.
3 connects the tapered shank portion 23a to the tool holding portion 2.
2a, and the pull stud 23b of the tool 23 engages the claws 21f, 21f of the engagement member 21.
is abuttingly engaged with.

Further, at the upper end of the main body 13a of the main shaft 13 in FIG. is mounted so as to surround the outer peripheral surface of the main body 13a in the drawing, and a mounting surface 13f is formed on the upper surface of the mounting portion 13g in the drawing. Further, as shown in FIG. 5, a plurality of (six in this embodiment) clamp devices 25 are attached to the work holding member attachment portion 13g at an angle of 60° along the outer circumferential surface of the main body 13a in the figure. They are provided at pitch intervals.

Each clamp 5M25 is the 61i! As shown in l, cylinders 25a, 25b, hole 25c, piston>=
25d, a piston rod 25e, etc. That is, the work holding member is attached to the mounting surface 13f of the portion 13g;
Six cylinders 25b are arranged at 60'' pitch intervals along the outer peripheral surface of one main body 13a in FIG.

The holes are drilled in the directions of arrows E and F, and each cylinder 25
b, the cylinder 25a is inserted through the hole 25c in the direction of the arrow E,
Connected in series in the F direction.

Furthermore, as shown in FIG. 6, a piston 25d is fitted into the cylinder 25a so as to be slidable in the directions of arrows E and F.
e is the cylinder 25a.

25b and the hole 25c so as to be movable in the directions of arrows E and F. Furthermore, a clamp portion 25j is provided at the upper end of the piston rod 256 in the figure.

The workpiece holding member attachment is provided in a manner that projects upward in FIG. 6 from the attachment 'rM113f of the part 13g, and furthermore, a spring 25g is compressed in the cylinder 25a so as to cover the periphery of the piston rod 25e. It is set up.

Incidentally, oil supply passages 25h and 251 formed in the main body 13a of the main shaft 13 and the work holding member mounting portion 13g, respectively, are shaped to open into the cylinder 2Sa at the lower end and upper end in FIG. 6 of the cylinder 25a. The other ends of the oil supply paths 25h and 25i are connected to a distributor 26 shown in the lower part of FIG. 4.

Furthermore, inside the cylinder 2Sb constituting each clamping device M25, as shown in FIG. 6, a plurality of claws 25k extend outward from the piston rod 25e in the direction indicated by the arrow E.

It is inserted so as to be able to slide freely in the direction F, and the workpiece holding member shown in FIG.
3f, six engagement grooves 13h formed in the shape of a stalk in the directions of arrows E and F in FIG. The holes are drilled radially at pitch intervals.

In addition, the 61st i! A chuck 27 is attached to the main shaft 13 shown in l.
Alternatively, the pallet 31 can be detachably attached to the workpiece holding member through the part 13g, as shown by the imaginary line in FIG.
each has a mounting portion 33 formed in an annular shape. For installation, there are six clamp grooves 33 & on the bottom surface of the part 33 in the figure.

It is bored in such a way that it can face each clamp device 25,
At the upper end of each clamp hole 33a in the figure, there is an enlarged diameter portion 33b.
is formed so as to have a larger inner diameter than other portions of the groove 33a. The piston rod 25e and the clamp part 25m of the claw 25 are fitted into the clamp hole 33a, and the clamp part 25m is inserted into the enlarged diameter part 33+3 of the clamp hole 33a by the clamp part 25j of the piston rod 25e. It abuts on the claw 25 in such a way that the gap between the claws 25 can be expanded. Furthermore, the installation is part 33.
On the bottom surface of FIG. 6, there are several m pieces (six pieces in this example).
The wedge-shaped convex portions 3'3c each correspond to the main shaft 13.
The attachment of the work holding member is provided in such a manner that it can be fitted into the engagement groove L3h of the portion 13g.

On the other hand, guide surfaces 2b, 2b are provided on the body 2 of the multitasking machine tool 1 shown in FIG. teeth,
The main body 32a of the tool rest 32.

It is supported in such a manner that it can be freely moved and driven along each guide surface 2b in a direction perpendicular to the plane of the drawing (?; direction of arrows M and N in Fig. 2). The main body 32a includes a tool main shaft portion 3 constituting the tool rest 32.
2b is provided in a form that can be freely moved and driven in the force directions of arrows E and F, and the aforementioned movable headstock 3
A main shaft 13 having the same configuration as the main shaft 13 is provided so as to be freely rotatable around its axis CT3. Furthermore, for aircraft 2.

A Shinjindai 29 is provided as shown in FIG.

Since the multi-tasking machine tool 1 has two or more configurations, in order to machine a long bar-shaped workpiece 30 using the multi-tasking machine tool l shown in FIG. Supplied to the chuck 27 in a form that penetrates the inside of the main shaft 13,
The workpiece 30 is set so as to protrude from the chuck 27 by the length to be machined. To do this, first, by appropriately rotating and driving the worm 9 shown in FIG.
The worm wheel 7 that meshes with the shaft 5b is rotated by 90'' in the direction of the arrow. Then.

The main shaft portion 10 also extends 9 in the direction of the arrow through the arm body 5a.
Rotate by 0° to the position Ii shown by the imaginary line in Figure 2! (That is, the main shaft 13 is positioned at a position where the axis CTI is horizontal.)

Next, if the adapter 22, tool 23, etc. are attached to the main shaft 13, from the main shaft 13.

Remove the adapter 22, tool 23, etc., and attach the main shaft 13.
It is necessary to attach the chuck 27 to the

Therefore, by first driving a pressure oil supply device (not shown), the moving drive mechanism 40 shown in the lower part of FIG. The pressure oil in the piston 41c is drained, and the piston 41e stops being pressed against the first end surface 41j by the pressure oil in the oil chamber 41a and the elasticity of the spring 4Ld.

Furthermore, the 1fi20 piston portion 20c of the drawbar 19 is pressed against the bottom surface 41 of the cylinder 41h by the pressure oil in the oil chamber 4Lb.
Pressure oil is supplied to the − chamber 41c from the state jli, ) urged in the m direction, and the pressure oil in the oil chamber 41b is drained. Then, the cylinder 20 of the drawbar 19 moves in the direction of arrow E through its piston portion 20c, being pushed by the pressure oil supplied to the oil chamber 41c, and moves toward the first end surface 41j.
The piston 41e is pressed against the piston 41e. Then, in addition to the pressing force in the direction of arrow F by the pressure oil in the oil chamber 41a, the elastic force of the spring 41d in the direction of arrow F acts on the piston 41e, so that the cylinder 20
It stops at the position where it abuts against the piston 41a, with its movement in the direction of the arrow E being prevented by the piston 41e through the arrow C.

In this way, when l120 moves a predetermined distance in the direction of arrow E, the engaging member 21 shown in FIG. By moving a predetermined distance in the direction of arrow E, the tips of the claws 2Lf and 21f of the engaging member 21
It moves in the direction of arrow E while slidingly contacting the engagement surface 22d of the adapter 22.

g and enters the diameter portion 22b. Also, at this time, the engaging member 21
The pressing rod 21d constituting the tool also moves in the direction of arrow E and comes into contact with the pull stud 23b of the tool 23.

Further, in this state, it moves a predetermined distance in the direction of arrow E.

Then, the tool 23 is moved in the direction of the arrow E while being pushed by the press rods 2 ], d, and the tapered shank portion 23a of the tool 23 touches the tool holding portion 22a of the adapter 22.
When the tool 23 and the adapter 22 are separated from each other, the holding relationship between the tool 23 and the adapter 22 is released. In this condition.

Pull out the tool 23 from the adapter 22 in the direction of the arrow E. At this time, the tips of the claws 21f, 21f are expanded within the enlarged diameter portion 22b due to their own elasticity.
The core layer 21f does not hinder the movement of the pull stud 23b in the E direction.

The extraction operation of the tool 23 is performed smoothly. Note that as the engaging member 21 moves in the direction of arrow E, its upper end 21m in FIG. 6 also moves in the direction of arrow E.

Since the adapter 22 does not come into contact with the lower end 22e in the figure, the adapter 22 does not touch the engaging member 21 during the extraction operation of the tool 23.
When the tool 23 is pulled out from the main shaft 13, the pressure oil in the oil chamber 41a of the moving drive mechanism 40 shown in the lower part of FIG. 4 is drained. do. Then, the tube 2 of the drawbar 19
0 moves in the direction of arrow E through the through hole 13b of the main shaft 13 while being pushed by the pressure oil supplied to the oil chamber 41c via the piston portion 20c. Then, the piston 41e also
Pushed by the piston part 20o, it moves in the direction of arrow E in the cylinder 41h while resisting the elasticity of the spring 41d, and comes into contact with the second end surface 41k of the cylinder 41b, and in this state, the second end surface 41k It stops in such a way that movement in the direction of arrow E is obstructed. Then.

The piston portion 20c also stops, being prevented from moving in the direction of arrow E by the stopped piston 41e. In this way, the cylinder 20 is connected to the piston 41 via the piston portion 20c.
When the piston 41e moves in the direction of arrow E while pressing e until it comes into contact with the second end surface 41k, the holding relationship between the adapter 22 and the workpiece holding portion 13d of the main shaft 13 is released.

That is, the cylinder 20 is inserted into the through hole 13b of the main shaft 13 shown in FIG.
The ball 20b moves a predetermined distance in the direction of arrow E within the ball 20b.
However, when the ball 20b enters the tapered part 13j from the straight part 13c, it is affected by the pressing force in the direction of arrow E of the chain part 20 acting through the hole 20a of the cylinder 20 and the groove 2 of the retaining member 21.
Due to the elastic force of the spring 21j acting through the spring 1b, the groove 21b of the engaging member 21 moves inside the hole 20a while being pressed against the tapered portion 13j in the direction of the arrow E.
move away from.

Then, the simple 20 further moves in the direction of arrow E.

When the ball 20b reaches the vicinity of the enlarged diameter portion 13e.

The ball 20b is completely separated from the groove 21b of the engagement member 21. As a result, the connection relationship between the cylinder 20 and the engagement member 21 is released, and the engagement member 21 (therefore, the adapter 22)
When the ball 20b is completely separated from the lfi groove 21b, it is moved in the direction of arrow E by the spring 21j, and its upper end 21m comes into contact with the lower end 22e of the adapter 22.

From this state, when the tube 20 further moves a predetermined distance in the direction of arrow E, the tip of the tube 20 comes into contact with the lower end 22e of the adapter 22 in the figure, and pushes the adapter 22 in the direction of arrow E. Then, the adapter 22 moves in the direction of arrow E together with the engaging member 21 and is extracted from the workpiece spindle 13. Note that at this time, as described above, the ball 20b shown in FIG. The movement of the engaging member 21 (or the adapter 22) in the direction of the arrow E is not obstructed.

Moreover, at this time, since the engaging member 21 is in close contact with the adapter 22 due to the elasticity of the spring 21j, there is no possibility that the engaging member 21 will slip off from the adapter 22 and get caught on the tool holding portion 13d or the like. Therefore, the adapter 22 and the engaging member 21 are smoothly pulled out from the main shaft 13 in the direction of arrow E.

Thus, tool 23. After the engaging member 21 and the adapter 22 are removed from the main shaft 13 shown in FIG. 6, the chuck 27 is mounted on the main shaft 13. Pressure oil is supplied from the lower end of the cylinder 25a to the cylinder 2 through the oil supply path 25h constituting each clamp device 25 shown in FIG.
5a. Then, by the supplied pressure oil.

Piston 25d together with piston rod 25e.

Move inside the cylinder 25a in the direction of arrow E. Then,
The piston rod 2 that was caught between the claws 25 and 25
The clamp portion 25j of the winter melon 25 moves in the direction of arrow E from the position shown by the solid line in FIG.
It is positioned higher in the figure.

In this state, the chuck 27 is installed so that each clamp hole 33a of the part 33 faces each clamp device W25 shown in FIG. By moving the chuck 27 toward the main shaft 13 in the direction of the arrow F of the sixth rjA, the chuck 27 is first positioned at a position facing the engagement groove 13h.
Winter melon 25k and piston rod 25 of clamp device 25
While fitting the clamp portion 25j of e, each convex portion 33
c into each engagement groove 13h. In addition, at this time, nail 2
The clamp parts 25m and 25 in 5 and 25 are tapered in such a way that they come into contact with the straight part directly below the clamp part 25j of the piston rod 2'5e by their own elasticity. The outer diameter of clamp hole 33 is
When attaching the chuck 27, the work of fitting the pawls 25 into each clamp hole 33a and fitting 4 into each clamp hole 33a is carried out smoothly.

Next, in this state, the pressure oil supplied through the oil supply path 25h into the cylinder 25a shown in FIG. 6 is drained through the distribution cloud 26 shown in FIG. , pressure oil is supplied into the cylinder 25a from the upper end of the cylinder 25a in the figure. Then, the supplied pressure oil causes the piston 25d to move together with the piston rod 25e.
It moves in the direction of arrow F within the cylinder 25a. Then, the clamp portion 25j of the piston rod 25e also moves in the direction of the arrow F, and enters between the claws 25 and 25, and is attached to the nuclear layer 25 and 2.
5. Push out the clamp parts 25m and 25m. Therefore, the clamp parts 25m, 25m of the claws 2sic-2sk are attached to the clamp holes 33 of the part 33 that constitute the chuck 27.
The chuck 27 is pulled toward the main shaft 13 by pressing the enlarged diameter portion 33b of the hole 33a toward the outside of the hole 33a.Then, the chuck 27 has its convex portions 33c aligned with the respective engagement grooves 1 of the main shaft 13.
3h, and further press them firmly into the engagement grooves 13h,
It is attached to the main body 113 in a form where it can be attached.

At this time, since the respective retaining grooves 13h are arranged radially as shown in FIG. 5, the chuck 2 is
7 rotates the main shaft 13 without being eccentric with respect to the main shaft 13, with the rotation center CT6 shown in FIG.
will be installed on the

Next, to the main shaft 13 of the tool rest 32 shown in FIG.

The work of installing the tool 23 used for machining is performed.

First, the adapter 22 is attached to the tool main shaft portion 32b shown in FIG.
In other words, the adapter 22 is attached to the tool holding portion 13d of the main shaft 13, and the key groove 22c shown in FIG.
The tool holder 1 is aligned with the key 35 provided in the tool holder 3.
Position it at a position facing 3d. In this state, move the adapter 22 toward the tool holding portion 13d, insert it into the main body 13a, and then insert the key groove 22c into the main body 13a.
The 61st i! is in sliding contact with the key 35! It is moved in the direction of arrow F' and temporarily fixed so as to butt against the tool holding portion 13d.

When the adapter 22 is temporarily fixed to the tool holding part L3d, in order to securely hold the adapter 22 in the tool holding part 13d, the moving drive mechanism 40 shown in the lower part of FIG. of.

Each shape MA (that is, only the oil chamber 41c is filled with pressure oil, and the pressure oil causes the piston 41a to move through the piston portion 20c of the cylinder 20 to the second end surface 4 of the cylinder 41h.
The state of being pushed to 1k.

), pressure oil is supplied into the oil chamber 41a. Then.

The piston 41e is pushed by the pressure oil in the oil chamber 41a and the elasticity of the spring 41d, and moves in the direction of arrow F, away from the second end surface 4Lk of the cylinder 41h, against the hydraulic pressure of the pressure oil in the oil chamber 41c. . Then.

The cylinder 20 of the drawbar 19 is also pushed by the piston 41e via its piston portion 20C.

Move in the direction of arrow F. In this way, when the tube 2o starts moving in the direction of the arrow F, the ball 20b shown in FIG.
It moves in the direction of arrow F within the enlarged diameter portion 13e toward the tapered portion 13j while being pulled by the chain portion 20 through the hole 2-Oa of the cylinder 20. On this occasion.

Since the engagement member 21 is not connected to the cylinder 20 via the ball 20b, the adapter 22 maintains a stopped state.

Furthermore, when l120 moves in the direction of arrow F from this state, the ball 20b moves from the enlarged diameter portion 13e to the tapered portion 13j.
Then, while moving in the direction of arrow F along the tapered portion 13j, it moves inside the hole 20Q of the tube 20 toward the retaining member 21. and.

The ball 20b fits into the groove 21b of the engagement member 21 when it reaches the approximate center of the tapered portion 13j, and the ball 20b moves the engagement member 21 in the direction of the arrow F through the two grooves 2tb.
While pushing in the direction, it moves downward in FIG. 6 along the tapered portion 13j. Then.

From the time when the ball 20b comes into contact with the groove 21b, the engagement member 21 engages the cylinder 20 via the groove 21b and the ball 20b.
and starts moving in the direction of arrow F while being pulled by the chain portion 20. Then, the adapter 22 connects the engaging member 2 via the soup ring 21j and the bolt 21k.
1 in the direction of arrow F and is pressed against the tool holding portion 13d.

Further, in this state, when the cylinder 20 shown in FIG. 6 moves in the direction of arrow F, the ball 20b enters the straight part 13c from the child par part 13j, and further moves in the straight part 13c in the direction of arrow F. Then, the engaging member 21 is pulled by the cylinder 20 via the ball 20b and the groove 21b,
Move the spring 21j in the direction of arrow F while compressing the spring 21j, and insert the tips of the claws 21f and 21f into the expanded diameter part 22b of the 7-double 22.
While keeping the lower end 22 of the adapter 22 in the
a in the direction of arrow F (i.e., the claws 21t'', 21f
(maintains an open state in which the pull stud 23b can be inserted).

In this way, when the piston 41e of the moving drive mechanism 40 shown in the lower part of FIG. 4 moves in the direction of arrow F together with the chain part 20 while pushing the cylinder 2θ via its piston part 20c, the piston 41e moves as follows. First end surface 4-1 of cylinder 41h
j, and stops at the position where it abuts against the first end surface 41j in such a manner that movement in the direction of arrow F is prevented by the first end surface 41j.

Then, the cylinder 20 also stops moving in the direction of arrow F, and stops with the piston portion 20c in contact with the stopped piston 41e. Note that at this time, the piston portion 20c is pressed against the piston 41a by the pressure oil in the oil chamber 41c, so that it does not move in the directions of arrows E and F.

In this way, when the tube 20 stops moving in the direction of arrow F,
The engagement member 21 stops at a position a predetermined distance away from the adapter 22 in the direction of arrow F with the spring 21j compressed by a predetermined amount, and the adapter 22 has elasticity in the direction of arrow F proportional to the amount of contraction of the spring 21j. The tool holder 13d is pressed against the tool holder 13d by the force, and the tool holder 13d is
is maintained.

The adapter 22 is connected to the tool holding portion 1 of the main shaft 13 of the tool post 32.
3d, a tool 23 used for machining is attached to the main shaft 13 via an adapter 22.

That is, the tool 23, its tapered shank portion 23a,
Next, the tool 23 is positioned at a position facing the tool holding portion 22a of the adapter 22 shown in FIG. Then, the tapered shank portion 23a of the tool 23 moves in the direction of arrow F within the adapter 22 and comes into contact with the tool holding portion 22a of the adapter 22. Also, pull stud 2 of tool 23
3b also moves in the direction of arrow F within the adapter 22, moves between the open claws 21f, 21f of the engagement member 21, and is inserted between the claws 2112Lf. In addition, at this time.

As described in a, the tips of the claws 21f, 21f are as follows.

Because it is inside the enlarged diameter part 22b of the adapter 22.

The claws 21f-21f are in an open state in which the spacing between their tips is widened due to their own elasticity. For this reason.

The pull stud 23b moves smoothly in the direction of the arrow F without being hindered by the nuclear layer 2tf.

In this way, when the tool 23 is inserted into the adapter 22, the oil chamber 41b of the moving drive mechanism 40 shown in the fourth @ lower part is opened.
At the same time, the pressure oil in the oil chamber 41c is drained. Then, the cylinder 20 of the drawbar j9 moves into the oil chamber 41.
The piston portion 20c is
to move in the direction of arrow -F. Then,
The engaging member 21 shown in FIG. 6 is pulled by the hook 20 through the groove 21b and the ball 2°b, and moves further in the force direction of the arrow F° while resisting the elasticity of the spring 21j, and the claw 21f, 21f has a pull stud 23 at its tip.
Move in the direction of arrow F with b hooked. Then,
The tips of the claws 21f, 21f slide through the enlarged diameter portion 22bt and enter the engagement surface 22d. When the tips of the claws 21f, 21f enter the engagement surface 22d, the tips of the claws 21f, 2Lf are deformed by the engagement surface 22d to narrow the distance between them.

Tighten the pull stud 23b. In that state.

When the engagement member 21 further moves in the direction of arrow F.

Claws 21f, 21. f also moves in the direction of arrow F, with the pull stud 23b being pinched. Then.

The tool 23 is held on the main shaft 13 of the tool rest 32 with the taper junk portion 23a pressed against the tool holding portion 22a via the pull stud 23b.

In this way, when the chuck 27 is attached to the main spindle 13 of the IA headstock 3 and the tool 23 is further attached to the main spindle 13 of the tool rest 32, the workpiece 30 to be machined is transferred to the swinging headstock 3.
The workpiece 30 is supplied to the chuck 27 by penetrating the inside of the drawer 19 attached to the main shaft 13 of the workpiece 30, and the workpiece 30 is drawn by the chuck 27 in such a manner that the tip of the workpiece 30 in FIG. When turning the workpiece ν30 in this state, the front wheel 15 shown in FIG. Rotate in direction D. Then, the main body L 3 a of the workpiece main @ 13 shown in FIG. Each engagement groove 13h and attachment of the portion 13g rotates in the direction of arrow C or D via each convex portion 33c- of the portion 33. At this time, the chuck 27 is securely attached to the main shaft 13 by fitting each convex portion 33a into the engagement groove 13h, so that the chuck 27 is not rotated in the direction of arrow C or D. There is no misalignment with respect to the main shaft 13, and the chuck 27 from the main @ 13
Cutting power is effectively transmitted to the workpiece 30 via the.

In this state, the main body 32a of the tool rest 32 shown in FIG.
Arrow M along the guide surface 2b on the te1 body 2.

By moving the tool spindle, 1532b, together with the spindle 13, by an appropriate 18 MJ in the vertical direction in the figure in the N direction.

The workpiece 30 is turned into a predetermined shape using a turning tool 23 attached to the shaft main @13.

Next, in order to mill the workpiece 30 with C-axis control, move the worm 16b shown in FIG. 4 from the position indicated by the imaginary line in FIG. By turning the worm L6b, the worm L6b is brought into mesh with the worm wheel 16a. In this state, by driving the C-axis drive mechanism (not shown), the worm 16b is appropriately rotated, and the worm wheel 16a (therefore, the workpiece spindle 13) is rotated by a predetermined angle in the direction of arrow C or [ ]. . In this state, a predetermined milling process or the like is performed on the workpiece 30 using a rotary tool 23 such as an end mill mounted on the main shaft 13 of the tool post 32 shown in FIG.

In the above-described embodiment, the workpiece is mounted on the main shaft 13 of the swing headstock 3 via the workpiece holding means such as the chuck 27, and the tool 23 is mounted on the main shaft 13 of the tool rest 32.
As described above, the main spindles 13 have the same structure, so the tool 27 is attached to the main spindle 13 of the swing headstock 3, and the tool 27 is attached to the main spindle 13 of the turret 3. It is also possible to attach a work to the main @ 13 via a work holding means and process the work. Hereinafter, a case will be described in which the tool 23 is mounted on the positive spindle stock 3 side and the workpieces are mounted on 32 tool rests for machining.

First, if the chuck 27 or the like is attached to the main shaft 13 of the swing headstock 3, the chuck 27 or the like must be removed via the distributor 26 shown in FIG. Each clamp device shown! The pressure oil supplied to the 25 cylinders 25a via the oil supply path 25i is drained, and the pressure oil is supplied into the cylinder 25a from the oil supply path 25h.

Then, the supplied pressure oil moves the piston 25d together with the piston rod 25e within the cylinder 25a in the direction of arrow E. Then, the clamp portion 25j of the piston rod 25e, which was sandwiched between the claws 25k and 251c, also moves in the direction of the arrow E between the claws 25k and 251c, and the nuclear layer 2
5, it is positioned higher in FIG. 6 than the clamp portion 26m at 25.

Then, the claws 25k that had been inserted into the enlarged diameter portions 33b of each clamp hole 33a by the clamp portions 25j of the piston rod 25e.

25k narrows down due to its own elasticity, and the piston rod: ≧5e clamp portion 25. It comes into contact with the straight part directly below j. In this state, the chuck 27 is pulled in the direction of arrow E. Then, when the chuck 27 is attached, the 25k comes out from the clamp hole 33a of the part 33 to the claw 25, and the convex part 33c of the part 33 is attached upwardly in the figure from the engagement groove 13h of the part 13g. Leave. Therefore, the chuck 27 can be smoothly removed from the main shaft 13 without being hindered by the clamp devices M25 and the like.

In this way, after the chuck 27 has been removed from the main shaft 13 of the swing headstock 3 shown in FIG. 23, the adapter 22 to which the engaging member 21 is connected is fitted into the tool holding portion 13d of the spindle 13. Next, the tool 2:3 is attached to its tapered shank portion 23a. adapter 2
It fits into the tool holding portion 22a of No. 2. Furthermore:! The IE tool 23 is connected to the drawbar 19 via its pull stud 23b, engagement member 21, etc., and in this state, the drawbar 19 is operated to pull the tool 23 downward to the fourth Fl. , its tapered shank portion 23
a is pressed against the tool holding portion 22a of the adapter 22 and attached to the main spindle 3.

On the other hand, when the tool 23 is attached to the main shaft 13 of the tool rest 32, the tool 23 is removed and the chuck 27 etc. are attached. Similarly, the drawbar 19 shown in FIG. 6 is actuated to push the tool 23 in the direction of arrow E via the engaging member 21, etc.
direction, and the tapered shank portion 23a connects to the adapter 2.
2, away from the tool holding section 22a. In this state, the tool 238 is pulled out from the adapter 22 in the direction of arrow E. Furthermore, the drawbar 19 is operated to move the adapter 22 in the direction of arrow E.
direction to separate the adapter 22 from the tool holding portion 13d, and in this state, pull out the adapter 22 from the main shaft 13.

Thus, the main $1. After the tool 23 has been removed from L3, work is carried out to attach a workpiece holding means such as the chuck 27 to the main shaft 13, that is, the chuck 27 is attached to the 61st
! Attach each convex portion 33C shown in l to each engaging groove 1 of portion 33:
3h, and temporarily fasten it in such a way that the claws 25 of each clamp fitting @ 25 are inserted into each clamp hole 33a,
In this state, by driving the clamp device [25], the chuck 27 is pressed against the mounting section, and the chuck 27 is pressed against the mounting section.
7 is attached to the main shaft 13. In this state, the chuck 27
A workpiece is mounted on the main shaft 13, and a predetermined process is performed on the workpiece using a tool 23 mounted on the main spindle 13.

If the shape of the workpiece is not rod-shaped, 1, for example, if a box-shaped workpiece (not shown) is to be mounted on the main spindle 13 of the single-drive headstock 3 and processed, the pallet 31 should be installed as shown in Fig. 6. Each convex portion 33c provided on the portion 33 is fitted into each engagement groove 13h of the main shaft 13, and the claw 25 of each clamp device v125 is fitted into each clamp hole 33a, and in this state, each clamp device 25, the valent 31 is pressed against the main shaft 13 and mounted.

In this state, a box-shaped workpiece is attached to the pallet 31,
A predetermined process is performed on the workpiece.

Further, the workpiece 36 is moved to the swing headstock 3 as shown in FIG.
In order to perform processing with the intersection angle θ between the axis CT1 of the main shaft 13 of the tool rest 32 and the axis CT3 of the main axis L3 of the tool rest 32 at an angle other than 90°, the worm 9 shown in FIG. 1 must be rotated as appropriate. As a result, the worm wheel 7 that meshes with the worm 9 is rotated by a predetermined angle in the direction of arrow A or B together with the shaft 5b. Then, the main shaft portion 10 also rotates by a predetermined angle in the direction of arrow A or B via the arm body 5a from the position indicated by the second continuous line, and moves to the position indicated by the solid line in FIG. 3 (i.e.,
It's about 0° to 90°! position.

In this state, the main shaft 13 of the swing headstock 3 shown in FIG.
The tool main shaft portion 32b is rotated together with the workpiece 36, and in this state, the tool rest 32 is appropriately moved in the horizontal direction in the drawing along the guide surface 2b on the machine body 2, and the main shaft 13 is moved in the vertical direction in the drawing. The workpiece 3Q is machined using a tool (not shown) attached to the tool with its axis being inclined at a predetermined angle θ with respect to the tool.

In addition, in the above-mentioned embodiment, a case was described in which the tool holding device 17 is used as the tool attachment/detachment means, but the tool attachment/detachment means is not limited to this, and may be capable of holding the tool 23 in a detachable manner. Of course, it may be configured in any way.

For example, as shown in FIG. 7, the tool holding part w117 is
Instead of inserting the spring 21j of the retaining member 21 into the single-stage hole 21i, it is also possible to set it within the inner surface 21h of the engaging member 21.

In the above embodiment, the clamping device i! shown in FIG. 6 is used as a means for clamping the work holding means such as the pallet 31. 25 has been described, but the clamping means is not limited to this, and if the work holding means can be detachably attached to the main [13], the clamping means is not limited to this.
Of course, it can be configured in any way.For example,
A pallet 31 serving as a work holding means is provided with an engaging portion (not shown) having the same shape as the tapered shank portion 23a and pull stud 23b of the tool 2:3 shown in FIG. Then, connect the engaging portion of this pallet 31 to the adapter 22.
Insert the tool into the tool holding part 22a, and then press it in that state.
The pallet 31 can be mounted on the main shaft 13 without using the clamp device 125 by pulling the engaging portion in the direction of arrow -F with the draw bar 19 via the engaging member 21.

Note that by moving the drawbar 19 a predetermined distance in the direction of arrow E and releasing the connection between the engaging portion and the drawbar 19 described above, the pallet 31 provided with the engaging portion is removed from the main shaft 13. It can be removed.

In addition, in the actual tM example mentioned above, the automatic headstock 3 is
As shown in FIGS. 2 and 3, arrows A,
Although we have described the case of turning in direction B, t! The movable shaft stock 3 is not limited to this, as long as the intersection angle between the shaft center CTI of the upper shaft 13 and the shaft center CT3 of the main shaft 13 of the tool post 32 can be varied as appropriate.

Of course, it can be configured in any way.For example,
Of course, the swing headstock 3 may be configured to rotate within a horizontal plane. Hereinafter, a multi-tasking machine tool 1 that can rotate the swinging headstock 3 in a horizontal plane will be described.

The multi-tasking machine tool 1-, which can rotate the swinging headstock 3 in a horizontal plane, has a body 2, as shown in FIGS. 8 to 10, and the upper part of the 4Ii body 2 in FIG. A shaft 2d is provided upright. A swinging arm portion 5 is attached to the shaft 2d via a plurality of bearings 6, and is attached to the axis CT4 of the shaft 2d.
A gear 37a is provided on the lower surface of the swinging arm 5 in the figure, and its axis coincides with the axis CT4 of @2d. It is fixed in such a way that it As shown in FIG. 10, the i-wheel 37a is meshed with a gear 39a which is rotatably attached to a drive motor 39 via a shaft 39b, and furthermore, a gear 39a is attached to the lower surface of the swing arm 5 in the figure. .

A roller 37b is provided so as to be able to freely roll on the body 2. Further, a main shaft part 10 is provided at the upper part of the swing arm part 5 in the figure, and the main shaft part LO is provided with a main shaft part 10.

The aforementioned main shaft 1:3 (see FIGS. 4 to 71) is provided.

Also, on 1 aircraft 2, as shown in Fig. 9.

Guide surfaces 2b and 2b are provided parallel to the directions of arrows P and Q, and a tool rest 32 is provided on the guide surfaces 2b and 2h in the directions of arrows P and Q and at right angles to the directions of arrows P and Q. arrows R, S
direction, and also the direction perpendicular to the plane of the paper in the figure, that is, the direction indicated by arrow 1 in FIG.
It is provided in a form that allows it to move freely in the J direction. That is, the tool post 32 includes a main body 32a, a tool main shaft portion 32b, and a base 32.
d etc., and on the guide surfaces 2b, 2b of the fuselage 2,
The base 32d is moved along the guide surface 2b to the plane P in FIG.
.

It is provided in a form that can be freely moved and driven in the Q direction. base 3
Guide surfaces 32e, 32e are provided on 2d,
On the guide surfaces 32e, 32a, the main body 32a is movable along the guide surfaces 32e, 32e in a direction perpendicular to the plane of FIG. Supported.

Further, the main body 32a has guide surfaces 32f, 32f.

The arrow work, which is the vertical direction of Lory I, is provided parallel to the J direction, and the tool ball shaft portion 32b is provided on the main body 32a.
It is supported in such a manner that it can be freely moved and driven in the directions of arrows 1 and J via respective guide surfaces 32f and 32f.

Note that, as shown in FIG. 8, the tool main shaft portion 32b is provided with the aforementioned main shaft 13 (see FIGS. 4 to 7) in a form that can be freely driven one rotation.

To process a workpiece using the multitasking machine tool 1 shown in FIGS. 8 to 10, the workpiece to be processed is mounted on the main shaft 13 of the swinging headstock 3 via a workpiece holding member such as a chuck 27. First, in this state, by driving the drive motor 39 shown in FIG. 10, the gear 39a is rotated, and the gear 37a is rotated in the direction of the arrow K or L as appropriate.

Then, the swing headstock 3 rotates together with the main shaft portion 10 around the shaft 2d in the direction of arrow K or L, and the main shaft 1 of the main shaft portion 1°
3 and the axis CT3 of the main shaft 13 of the tool rest 32 (see FIG. 9) is positioned at a position where the intersection angle θ (see FIG. 9) is the set angle.

In this state, the main shaft 13 of the swing headstock 3 is rotationally driven.

Further, the base 32d of the tool post 32 is moved along the guide surfaces 2b, 2b together with the main body 32a in the directions of arrows P and Q in FIG.
, J 2 e in the directions of arrows R and S,
Furthermore, the tool main shaft portion 32b is attached to the guide surface 3 together with the main shaft 13.
2f and 32f in a direction perpendicular to the plane of the paper in FIG. 9 (that is, in the direction of arrow 1.J in FIG. Process into shape. Note that the main shaft 13 of the JI dynamic axle rest 3 and the main shaft 13 of the tool rest 32 have the same structure as described above, so the workpiece is attached to the main shaft 13 side of the tool rest 32 with the V7, and 11! It goes without saying that machining may be performed by attaching a tool to the main shaft [3 side of the dynamic headstock 3 (the same applies to each of the embodiments shown below).

Further, in the above-described embodiment, the multi-tasking machine tool 1 is configured such that the tool rest 32 can be moved and driven in three mutually orthogonal directions (i.e., arrow I, J directions, P, Q directions, and R, S directions). , the case where the TB motion is provided so that the spindle stock 3 can be rotated in a horizontal plane has been described, but the multi-tasking machine tool 1 that can be provided with the swinging head stock 3 in this way is not limited to this. Of course, the multitasking machine tool 1 having any type of turret may be used as long as the swing headstock 3 can be rotated in a horizontal plane.

For example, a multitasking machine tool 1 may be used in which the tool rest 32 is driven to move in two mutually orthogonal directions.

Hereinafter, a swinging headstock 3 that can rotate in the horizontal direction is used in a multi-tasking machine tool where the tool rest 32 is driven to move in two directions.
A case in which the following is provided will be explained based on FIGS. 11 to 13. Note that the same parts as those described in FIGS. 8 to 10 are denoted by the same reference numerals, and the explanation of those parts will be omitted.

In the body 2 of the multitasking machine tool 1 shown in FIG. 11, the base 32d of the tool rest 32 is located on the guide surface 2b.

2b, the 11th
A tool spindle portion 32b is provided on the base 32d shown in the figure so as to be movable in the direction of arrow R1S via a guide surface 32g. The swing headstock 3 is provided in such a manner that it can be freely rotated in the L direction, as shown by the arrow, about the shaft 2d.

To process a workpiece using the multitasking machine tool 1 shown in FIGS. 11 to 13, the workpiece is mounted on the main shaft 13 of the swing headstock 3 shown in FIG.

In this state, the swing headstock 3 is rotated around the 11 axis 2d in the direction of the arrow K or L, and the axial center CT1 of the 1wi main shaft 13 and the axial center CT1 of the main shaft 1i1113 of the tool post 32 (1) Intersection angle e
(See Fig. 12) is positioned at a set angle. Next, the main shaft 13 of the II moving shaft stock 3 is rotationally driven, and the base 32d of the tool rest 32 is moved to the tool main shaft portion 32b.
along the guide surfaces 2b, 2b.

The tool is driven to move in the directions of arrows P and Q in FIG. Machining the workpiece into a predetermined shape.

Furthermore, it is also possible to provide the multi-tasking machine tool 1 having the turret-type tool rest 32 with a swinging headstock 3 that can be rotated in a horizontal plane.
This will be explained based on FIGS. 16 to 16. In addition, Figures 8 to 1
The same parts as those described in FIG.

Turret 3 configuring the multi-tasking machine tool 1 shown in FIG.
On the base 32-d of No. 2, there is a main body 32a of the tool rest 32.
is the guide surface 32. The main body 32a is provided with a turret 32ks which can be freely moved and driven in the directions of the arrows R and S. A turret 32ks to which a large number of tools can be mounted is provided on the main body 32a so as to be freely rotatable. Also.

The swing headstock 3 is provided so as to be swingable in the direction of the arrow L about the shaft 2d shown in FIG. 16.

To machine a workpiece using the multi-tasking machine tool 1 shown in FIGS. 14 to 16, the workpiece is mounted on the main shaft 13 of the swinging headstock 3 shown in FIG. 3
is rotated in the horizontal plane in the direction of arrow K or ■, as appropriate in the force direction, about the axis 2d.

Next, drive the main [13] times. Furthermore, the turret 32h of the tool rest 32 is appropriately rotated to position the tool used for machining at a predetermined position, and in this state, the tool rest;
Predetermined processing is performed by moving and driving in the directions of arrows P and Q in FIG. 15 and in the directions of arrows R and S.

(f>, Effect of the Invention As explained above, according to the invention of the multi-tasking machine tool which is the first invention of the present invention, there are 11 bodies 2, and the machine body 2 has a tool rest 32 A first main shaft assembly such as the above is provided so as to be freely movable and driven in at least one direction, and a second main shaft assembly of the II moving shaft stock 3 is freely driven to rotate with respect to the first main shaft assembly. and the first and second spindle assemblies.

Main shafts 13.13 each having the same structure are rotatably provided, and chucks 27.13 are provided on each of the main shafts 13.13. Since the pallet: 31kIl workpiece holding means or tool 23 is selectively attached and detached, when processing the workpiece 30, the axis center CT3 of each main fiL3 of the first and second main spindle assemblies is The intersection angle of CTI is set to a predetermined angle (
For example, at a right angle), the workpiece 30
．． 36 via the work holding means, and the tool 23 is mounted on the other main spindle 13, thereby creating an El work 31].

It becomes possible to process 36 pieces. As a result, it is possible to flexibly cope with the increasing complexity of the processing contents of the workpieces 30 and 36 in the future.

Further, according to the second invention of the main shaft structure of a multitasking machine tool, the main body 13a is provided with a tool holding portion 13d.

Drawbar 19, engagement member 21. Adapter 22, clamp device! 25 or the like is provided, and the main body 13a is further provided with a tool 23 or a chuck 27, a pallet 3, etc.
Since the work holding means of the first class is configured to be selectively attached and detached via the engaging body holding mechanism, the main body 13a
Then, the work holding means is attached via the engaging body holding mechanism*, and in this state, the workpieces 30 and 36 can be attached to the 9 main body 13a via the engaging body holding mechanism. Also, main body 1
Instead of the workpiece holding means, the tool 23 can also be attached to 3a via an engaging body holding mechanism.

As a result, it is possible to provide a main shaft structure of the machine tool 1 that can selectively attach and detach the workpiece 30, 36 or the tool 23.

Further, according to the third invention of the main shaft structure of a multitasking machine tool, the main shaft structure includes a main body 13a, and a through hole 13b is formed in the axis CTL direction of the main body L3a, and the through hole 13b is formed in the direction of the axis CTL of the main body L3a. An engaging body holding means such as an engaging member 21 and an adapter 22 is placed in the hole 13b.

A tool 23 is detachably provided so that it can be inserted into and removed from the through hole via the engaging body holding means, and further, the main body 13]
The workpiece holding means clamping mechanism such as the clamping device 25 is attached to the chuck 27. Since the workpiece holding means such as the pallet 31 is provided in series with the through hole 13b, the tool 23 is attached to one main body 13a via the engaging body holding means, and one main body L3a In addition, instead of the tool 23, a workpiece holding means can be connected in series with the through hole 13b via a workpiece holding means clamping mechanism.

Further, the engaging body holding means is removed from the main body 1311, and the work holding means is provided on the main body 13a.

By attaching the workpiece holding means through the clamp mechanism, the long bar-shaped workpiece 30 is held through the through hole 13b.
It is also possible to process the workpiece 30 while supplying it to the workpiece holding means.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of a multi-tasking machine tool according to the present invention. Figure 2 is a right side view of Figure 1. Fig. 3 is a diagram showing how a workpiece is machined using the multi-tasking machine tool shown in Fig. 1, and Fig. 4 shows an example of the main spindle of the swinging headstock of the multi-tasking machine tool shown in Fig. 1. FIG. 5 is a plan view showing the main shaft portion of the main shaft portion in FIG. 4. FIG. 6 is a cross-sectional view showing a main part of the main shaft portion of FIG. 4. FIG. 7 is a diagram showing another example of the tool holding device attached to the spindle of FIG. 4. FIG. 8 is a front view showing another embodiment of the multitasking machine tool according to the present invention. No. 9 @ is a plan view of FIG. 8. FIG. 10 is a right side view of FIG. 8. FIG. 11 is a front view showing another embodiment of the multitasking machine tool according to the present invention. FIG. 12 is a plan view of FIG. 11. FIG. 13 is a right side view of FIG. 11. FIG. 14 is a front view showing still another embodiment of the multitasking machine tool according to the present invention. FIG. 15 is a plan view of FIG. 14. FIG. 16 is a right side view of FIG. 14. 1... Multi-tasking machine tool 2... Machine body 3... Second spindle assembly (oscillating headstock) 13.
...Main shaft 13b...Through hole 13d...Engagement body holding mechanism (tool holding part) 19.
...Engaging body holding mechanism (drawer) 21...
... Engaging body holding mechanism, engaging body holding means (engaging member) 22... Engaging body holding I! structure, engaging body holding means (
adapter) 23... Tool 25... Engaging body holding machine-bridge, work holding means clamping mechanism (clamp device) 27... Work holding means (chuck) 31...
... Work holding means (pallet) 32 ...
First spindle assembly (turret) CTI...Axis applicant Yamazaki Mazak Co., Ltd. Agent Patent attorney Phase 1) Shinji (and 2 others) Drafting of drawings f-πj: No changes Ij No. Figure 3 M←→N Figure 5 Figure 14 Figure 15'-CTI R+-+S Figure 16-P 1. Indication of the incident 1988 Patent Application No. 266049 2. Name of the invention Composite processing machine tool and compound Main shaft structure of processing machine tools 3,
Relationship with the case of the person making the amendment Patent applicant address: 1 No. 1, Oaza and Koro, Oro-cho, Niwa-gun, Aichi Prefecture Name (
Name) Yamazaki Mazak Co., Ltd. Representative Teruyuki Yamazaki 4, Agent Address 3-12-21 Shimoai, Shinjuku-ku, Tokyo 161
No. (Shipping mortar January 26, 1986)

Claims (3)

[Claims] (1) having a machine body, a first main spindle assembly is provided on the machine body so as to be movable and driven in at least one direction, and a second main spindle assembly is pivotable with respect to the first main spindle; The first and second spindle assemblies are provided with spindles having the same structure so as to be rotatably driven, and a work holding means or a tool holding means is selectively attached to and detached from each of the spindles. A multi-tasking machine tool that has been installed and configured. (2) has a main body, the main body is provided with an engaging body holding mechanism, and a tool or a workpiece holding means is selectively and detachably attached to the main body via the engaging body holding mechanism; The main shaft structure of the constructed multi-tasking machine tool. (3) It has a main body, a through hole is formed in the axial direction of the main body, and an engaging body holding means is provided in the through hole, and a tool can be attached to and removed from the through hole via the engaging body holding means. A spindle structure of a multi-tasking machine tool, wherein the main shaft structure of a multi-tasking machine tool is provided in a detachable manner, and further includes a workpiece holding means clamping mechanism provided on the main body so that the workpiece holding means can be connected in series with the through hole.