JPS61100341A - Machining center - Google Patents

Abstract

PURPOSE:To make accurate positioning for a tool performable even if the tool moves somewhat to a chain, by installing a device which temporarily releases the hold of the tool supported by the chain, at the time of tool clamping by a tool holder. CONSTITUTION:A chain 69 is installed in a tool magazine 65 free of movement and drive motion at will. And, in this chain 69, there are provided with tool magazine claws 69a holding plural tools 43 and 49 so as to make a head hole of a tool holder 2 and each tool matchable so selectively at a sprocket 66 of the chain. In addition, at an interval between these tools 43 and 49 and the chain 69, there is provided with a stopper pin capable of releasing temporarily the supporting relation between them. Here, the tool magazine 65, together with the tool holder 2, is installed free of movement in axial direction of a spindle and in a direction right-angled with the former synchronously. In addition, the tool holder 2 is installed in the tool magazine 65 in a relatively retractable manner, and furthermore a crankpin rod, capable of holding these tools 43 and 49 on the chain 69, is installed in the tool holder 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a multi-tasking lathe that performs predetermined machining while exchanging a plurality of tools installed in a tool magazine.

(b), Prior Art In Japanese Patent Application No. 58-203412, the applicant holds a plurality of tools attached to a winding medium joint such as a chain, and drives the held tools to rotate the winding medium joint. By doing this, the tool holder selectively positions the tool with respect to the tool holder, and the tool holder holds the positioned tool attached to the winding intermediate joint to perform machining on the workpiece, thereby reducing the time required for tool exchange. We are proposing a complex machining process that significantly shortens the time.

(C)0 Problems that the invention attempts to solve In this method,
Tool hemlock. Compared to a method in which an ATC7-arm is provided between the tool magazine and the tool holder, and the tool is exchanged while being transferred between the tool magazine and the tool holder using the ATC arm, the tool exchange time is significantly reduced. It has the advantage of being shortened. However, the tool is clamped on the tool holder in such a way that it is slightly pulled away from the winding joint while the tool is still attached to the winding joint. A force that is harmful to the positioning of the tool acts between the tool and the wrapping intermediate joint, resulting in a disadvantage that the positioning accuracy of the tool with respect to the tool holder is deteriorated, and as a result, the machining accuracy is deteriorated.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, the present invention provides a multi-tasking lathe that does not apply any harmful force to the positioning of the tool when clamping the tool to the tool holder, and therefore allows highly accurate positioning. The purpose is to

1d) Means for solving the three problems, that is, the present invention provides a movable and movable winding intermediate joint in a tool magazine, and also connects a plurality of tools to the intermediate joint between the head hole of the tool holder and the tools. can be selectively aligned at the bend of the medial joint,
The tool is supported and mounted via a tool mounting means, and a support release means is provided for temporarily releasing the support relationship between the tool and the winding intermediate joint, and the tool magazine is mounted together with the tool holding base in the direction of the spindle axis. and synchronously movable in a direction perpendicular thereto, the tool holding stand is provided so as to be retractable relative to the tool magazine, and the tool holding stand holds the tool on the intermediate joint. It is constructed by providing means for holding the tool to be obtained.

(e) 0 Effect With the above-described configuration, in the present invention, when the tool is clamped by the tool holder, the support release means acts, and the tool supported and attached to the winding intermediate joint is released from its support relationship! l is temporarily released and can move freely to some extent, and even if the tool moves slightly relative to the wrapping joint during clamping, there will be no force between the wrapping joint and the tool that is harmful to positioning. It acts like it doesn't act.

(f), Example Examples of the present invention will be described below based on the drawings. explain.

FIG. 1 is a side view showing an embodiment of a combined machining lathe according to the present invention, FIG. 2 is a front sectional view showing a tool holding stand in the lathe shown in FIG. 1, and FIG. 3 is a side view showing an embodiment of the lathe shown in FIG. An enlarged view showing the tool mounting part of the tool magazine in
Figure 4 is an enlarged view of the shank of the tool, Figure 5 is a side sectional view showing the tool head and head hole, Figure 6 is a front sectional view showing the turning tool being held, and Figure 7 is the ATC. A front view showing the details of the device, FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7, FIG. 9 is a front view when the tool holder of the ATC device holds a tool, and FIG. FIG. 11 is a cross-sectional view of the tool holder taken along plane XI-XI in FIG.
11 is a sectional view taken along the plane XI-XII, FIG. 13 is a view showing the housing portion of the tool magazine, and FIG. 14 is a side view showing another embodiment of the present invention.

The compound machining lathe 1 has a bed 60, as shown in FIG. It is provided so as to be movable in the A and B directions via guide rails 62 formed in the A and B directions in FIG. A cross slide 63 is placed on the carriage 46.
is supported so as to be movable in the directions of arrows E and F (X-axis direction), which are perpendicular to the directions of arrows A and B, which are the spindle axis direction (Z-axis direction), and the cross slide 63 has a tool holding device. A table 2 is provided. As shown in FIG. 2, the tool holder 2 has a cylindrical head hole 3 and a shaft hole 5 drilled in the shape of a coaxial shaft 8, and a coaxial shaft between the head hole 3 and the shaft hole 5. A bearing hole 6 is bored in the shape of a core. A bearing holding member 7 is fitted into the open end of the shaft hole 5, and a pulley shaft 10 is rotatably supported on the holding member 7 via a bearing. Further, a spline hole 11 is formed at one end of the pulley shaft 10, and a driven pulley 12 is fixedly installed at the other end. The driven pulley 12 is connected to a drive pulley 15 via a V-belt 13, and the drive pulley 15 is fixed to an output shaft 16a of a motor 16. On the other hand, a transmission shaft 19 is rotatably supported in the bearing hole 6 via a needle roller bearing 17, and the transmission shaft 19 has a tongue clutch pawl 19a at one end and a spline hole at the other end. 9b, and furthermore, a ti 19 c is formed in the middle part. The spline 19b is slidably fitted into the spline hole 11 of the pulley shaft 10, and the spline 19b is slidably fitted into the spline hole 11 of the pulley shaft 10.
0, a spring 20 is compressed to bias the transmission shaft 19 in the three directions of the head hole, and a thrust bearing 21 is interposed between the mana crocodile 19c and the six bearing hole steps. There is.

Further, as shown in FIG. 5, the head hole 3 is formed of a true inner part 3a with a perfect circular cross section and a crescent-shaped relief part 3b that bulges outward from the true inner part 3a. At a position facing the portion 3b, a clamping rod 29 is fitted into a cylinder 25 formed on the tool holder 2 so as to be slidable in the directions of arrows C and D. Ports 26 and 27 are formed at both ends of the cylinder 25, and serrations 30 forming an engaging portion are formed at the tip of the rod 29, and a spring receiver 31 is formed at the other end. ing. Further, a lid 32 is fixed to the open end of the cylinder 25, and a spring 33 is compressed between the lid 32 and the rod 29, and the rod 29 is always urged in the C direction by the spring 33. Forced.

The motor 16 is provided on the tool holder 2, and the tool holder 2 and the motor 16 are moved within a certain range in the A1B direction, which is the main axis direction, by a cylinder 47 fixed to the cross slide 63. It is possible.

Further, on the cross slide 63, as shown in FIG. 1, a chain-type one-item magazine 65 is provided, and two sprockets 66 and 67 are rotatably provided on the chain-type one-item magazine 65. ing. A chain 69 is stretched between the sprockets 66 and 67, and the chain 69 is provided with a plurality of tool holders 69b for each predetermined link, as shown in FIG.

As shown in FIGS. 11 and 12, the tool holder 69)I has two plates 69c, 69C mounted in parallel to the chain 69, and each plate 69c, 69
A block 69d is fixed to the tip of C via a bolt 69e and a holding plate 69f. Block 69d has 2
A pair of claw mounting portions 69g are formed, and a hole 69h is drilled through each pair of claw mounting portions 69g. A rubber bushing 69+ is fitted into the bushing 69h, and a tapered hole 69j is bored in the bushing 69i. Further, as shown in FIG. 12, tool magazine claws 69a are attached to the two pairs of claw attachment parts 69g, which are four in total.
Four legs 69k shaped like the legs of a desk are fitted into the four corners of the lower end 69m of the tool magazine claw 69a, and each leg 69k is fitted with the six 69h of the block 69d. A hole 69n is formed to match the shape of the hole 69n. A sleeve 69p is fitted into the hole 69n via a collar 69o, and a hole 69q and a tapered hole 69 of the sleeve 69p are fitted into the hole 69n.
A stopper pin 69r is fitted into and engaged with j so as to be slidable in the directions of arrows S and T. The stopper bin 69r has a tapered part 69g formed in its middle part, and a coil spring 69t is compressed between the stopper bin 69r and the holding plate 691, and the coil spring 69t always moves the stopper bin 69'' in the direction of arrow T. is energized.

Further, as shown in FIG. 3, each tool magazine claw 69a is provided with a tool head 35.50 with a tool 43.49 mounted thereon so as to be detachable in the direction of arrow L1M. The tool 49 is a rotating tool, and the tool 49 is a turning tool such as a cutting tool. Further, the tool head 35 on which the rotary tool is mounted is composed of a boss 36 and a straight shank 37, as shown in FIG. Serrations 39 are formed as shown in FIG. Further, two stepped portions 37a are formed on the outer circumference of the shank 37, and the wire membrane attached portions 37a, 37
The space between a and a is a small diameter portion 37b having a smaller diameter than other portions. As shown in FIG. 2, a main shaft 42 is rotatably supported on the tool head 35 via a bearing. is formed.

On the other hand, the tool head 50 to which the turning tool 49 is attached also has a stray 1-shank 37, as shown in FIGS. Serrations 39 are formed. Further, two stepped portions 37a are formed on the outer peripheral portion of the shank 37, and a portion 37 with a wire membrane is formed.
The diameter between a and 37a is 0 smaller than the other parts 'C'I'diameter part 37b,! : 11° 1.

! i Furthermore, as shown in FIG. 1, an arm 70 is provided on the carriage 46, and the arm 70
At 0, the ATC arm 81 of the ATC device 71 is at 180°.
It is rotatably provided over a range. ATC arm 8
1 is a dovetail groove 8 as shown in FIGS. 7 and 8.
1b is formed, and a slide 1-m 83.83 is provided in the dovetail groove 81b with arrows G,
It is supported movably in the H direction. In addition, the main body 81a
, the drive piston 85.85 is connected to the cylinder 81c, 81
It is slidably inserted in the directions of arrows G and H through c.
The tip of the piston rod 85a of the piston 85 is screwed into a tool holding portion 82A182B, which will be described later. Further, tool holding parts 82A and 82B each having a cylindrical holding cylinder 82d are provided at the tip of each slide 1-m 83, and a lock bin 82e is attached to each holding cylinder 82d by a coil spring 82f. , that is, it is biased in the direction of arrow G.

By the way, a frame 86 is fixed to the arm 70, and a shaft cylinder 87 is rotatably provided to the frame 86 via bearings 89 and 89. An output shaft 91a of a hydraulic motor 91 is fitted into the shaft cylinder 87 via a key 90, and a cylinder 87a is further bored in the shaft cylinder 87.
A guide bush 102 is fixed to the cylinder 87a. The guide bush 102 has a keyway 102a in the vertical direction in the figure, that is, in the arrow 1. A piston 92 is formed in the cylinder 87a, and a key 92m fixed to the piston 92 is fitted and engaged in the keyway 102a.
Arrow 1. It is fitted and secured so that it can be freely protruded and driven only in the J direction. Note that the number 93.95 is a port for supplying pressure oil to the cylinder 81c, and the number 96.97 is a port for supplying pressure oil to the cylinder 81c.
A port 99.100 for supplying pressure oil to 7a is a pressure oil supply port for driving a hydraulic motor.

On the other hand, a support stand 72 is provided on the left side of the bed 60 in FIG. 1, and a replenishment tool magazine 73 having the same configuration as the tool magazine 65 is installed on the support stand 72. In the tool magazine 73, a plurality of tools 43.49 are detachably attached to a tool head 35.50, and a predetermined tool exchange is performed by driving a chain 69 via a sprocket 66.67. In position Z1 the tool 43.49 to be replaced can be positioned.

Since the compound machining lathe 1 has an imaginary configuration, when machining a workpiece, the cylinder 47
is driven to move and retract the tool holding table 2 in the direction of arrow B in FIG. In this state, the sprockets 66 and 67 of the tool magazine 65 are driven to rotate, and the tool to be used for machining is inserted into the head hole of the tool holder 2 from among the tools set and attached to the tool magazine pawl 69a in the chain 69. Position the tool at the tool indexing position X corresponding to 3. When the tool is positioned at the index position X and the tool and the head hole 3 are aligned as shown in FIG. Resist the force and retreat in the direction of the arrow.

In this state, when the cylinder 47 is driven to project the tool holder 2 in the inward direction, the tool head 35 rotatably supporting the main shaft 42 is inserted into the head hole 3 of the holder 2.

At this time, the dog clutch pawl 19a of the transmission shaft 19 and the main shaft 4
2 clutch pawls 45 engage, but both clutch pawls 19a
, 45 contact each other, the transmission shaft 19 retreats against the spring 20, so there is no obstacle to inserting the tool head 35, and the clutch pawl protrusions do not touch each other. Even in this engagement, both clutch pawls 19a and 45 mesh simultaneously with the rotation of the transmission shaft 19.

Next, when the supply of pressure oil from the boat 26 is stopped and pressure oil is supplied from the boat 27 into the cylinder 25, the rod 29 projects in the direction of arrow C together with the elastic restoring force of the spring 31, and the rod 29 Serration 30
engages the serrations 39 in the straight shank 37 of the tool head 35.

In this state, when the rod 29 is further moved in the direction of arrow C, the shank 37 is pushed in the C direction and moved in the B direction due to the wedge action of the serrations 30 and 39.

Then, by pressing the shank 37 in the C direction, the shank 37 comes into contact with the boundary points PKI and PK2 between the relief part 3b and the inner part 3a of the head hole 3, and the shank 37 contacts the boundary points PKI and PK2 between the relief part 3b and the inner part 3a of the head hole 3, and the 3 Based on the fact that the shank 37 is securely held in the head hole 3 at a certain point and that the shank 37 moves in the direction B,
The end surface 2a of the tool holding base 2 on the side of the head hole 3 and the end surface 36a of the boss portion 36 of the tool head 35 are pressed with a predetermined contact pressure, whereby the tool head 35 is accurately installed at a predetermined position within the head 63. Retained.

Furthermore, although the tool 43 is attached to the chain 69 via the tool head 35, the tool 43 is not allowed to move to some extent in the direction of arrows C and D in FIG. 2 and in the direction Q1R in FIG. When the tool 43 is attached to the tool holder 2, the tool 43 is attached to the rod 29 due to misalignment between the tool head 35 and the head hole 3.
During clamping, a force mainly in the direction D is received from the chain 69 side, causing positional deviation, making it impossible to clamp the tool 43 at an accurate cutting edge position. Therefore, when the tool holder 2 is moved in the direction A to clamp the tool 43 and the shank 37 of the tool head 35 of the tool holder 2 is inserted into the head hole 3, as shown in FIG. The tip of the stopper pin 69r of the tool holder 69b comes into contact with the block 2b provided on the tool holder 2, and the stopper pin 69. Move r in the S direction against the elasticity of the coil spring 69t. Then, due to the elasticity of the coil spring 69t, the tapered hole 69j of the bushing 691
The tapered portion 69s that had been in abutting engagement with the taper portion 69s is released from the abutting engagement state, and a slight gap is created between the tapered portion 69g and the tapered hole 69j.

Then, the stopper pin 69r can move freely to some extent in the directions of arrows C, D, Q, and R in the tapered hole 69j.
The tool magazine claw 69a1 with which the stopper pin 69r engages via both ends thereof, and therefore the tool 43.49 held by the tool magazine claw 69a, is connected to the CSD and Q via the four legs 69k together with the tool head 35.50. Movement in the R direction is possible. Then, when holding the tool head 35 of the clamping rod 29, even if the tool throat 35 is moved in the C or D direction, the tool magazine pawl 69a is free to move with the tool head 35 relative to the chain 69. The tool 43 is accurately mounted and held on the tool holder 2 without any force acting on the tool head 35 from the chain 69 side. Note that when the tool magazine claw 69a can be moved by the movement of the stopper pin 69r in the S direction, the tool magazine claw 69a can be moved to an extent that can compensate for the misalignment between the tool head 35 and the head hole 3 (that is, the head hole 3 of the throat 35 to the tool When installed on the tool head 35
To the extent that forces in the C, D, and Q1R directions do not act on the ) is sufficient.

Furthermore, before the stopper pin 69r comes into contact with the block 2b, or when the stopper pin 69r separates from the block 2b and the abutting relationship is released, the stopper pin 69r is moved in the T direction by the elasticity of the coil spring 69t. energized
1, the taper portion 69s and the taper hole 69J come into close contact, and the tool magazine claw 69a and therefore the tool 43 are securely held against the chain 69.
There is no movement in the R direction. Further, since the bushing 691 is made of an elastic material such as rubber, the tool magazine pawl 69a can elastically move to some extent in the C, D, Q, and R directions relative to the block 69d1, that is, the chain 69. When inserting the head 35 into the head hole 3, the tool head 35 moves completely due to the movement of the I/Smber bin 69r in the S direction (even before the tool head 35 is free, there may be some C1D and Q due to the elastic deformation of the bushing 69i).
Since movement in the 1R direction is possible, the tool head 35 can be mounted on the tool holder 2 more smoothly without applying excessive force to the chain 69.

When the morph 16 is rotated in this state, the rotation of the morph 16 is caused by the drive pulley 15,
Belt 13, driven pulley 12, pulley shaft 10, transmission shaft 1
9 and the clutch pawls 19a, 45 to the main shaft 42 to rotate the rotary tool 43 provided on the main shaft 42,
Desired rotation work can be performed.

At this time, the tool head 35 is processed while being attached to the chain 69 of the chain-type one-tool magazine 65, but the indexing position X is set at the bent part where the chain 69 is wound around the sprocket 66. Therefore, in that part, the chain 69 is bent in an arc shape, and therefore, the space between adjacent tool heads 35 and 50 attached to the chain 69 is wider than in other straight parts. Even if machining is performed with the workpiece attached to the magallen 65, there will be no interference between adjacent tools on the chain 69, or between the workpiece and other tools on the chain 69.

When the work is completed, the rotation of the morph 16 is stopped, and pressure oil is supplied from the boat 26 to the cylinder 2 as described above.
5, the clamping rod 29 is retracted in the direction of the arrow, and the cylinder 47 is used to retract the tool holder 2 in the direction B, thereby removing the tool head 35 and the tool 43 from the head 63. It will be done.

Therefore, by immediately driving the sprockets 66, 6 and 7, the tool to be used for the next machining is positioned at the index position The tool selection operation by the magazine 65 is performed smoothly.

In the above embodiment, the tool head 35 with a built-in spindle 42 was selected and inserted into the tool holder 2, but as shown in FIG. 6, a tool head 50 having a turning tool 49 was selected and inserted. Of course, it may also be used.

In this way, the tools 43 and 49 in the tool magazine 65 are successively mounted on the tool holder 2 to perform predetermined machining, but as many types of workpieces are being machined, only the tools stored in the tool magazine 65 are used. In this case, a situation arises in which proper processing cannot be performed. In that case, before machining a new workpiece, move the carriage 46 in the ASB direction and the cross slide 63 in the E and F directions, and move the tool magazine 65 on the cross slide 63 to a predetermined tool exchange position. Position. In this state, the chain 69 is rotated via the sprockets 66, 67 of the tool magazine 65, and the tool 43 or 49 to be replaced in the tool magazine 65 is transferred to the tool exchange position 11 along with the tool head 35, 50.
Z2, and further drives the sprocket 66.67 of the tool magazine 73 to rotate the chain 69, and moves the tool 43 or 49 to be replaced in the tool magazine 73 to the tool exchange position Z1 together with the tool head 35.50. .

When the tool 43 or 49 to be replaced is positioned at position Z2 and Zl, respectively, the ATC device 1i71 is driven and the pressure oil supply port 1 of the hydraulic motor 91 is activated.
Pressure oil is supplied to the output shaft 91a of the hydraulic motor 91.
rotates. Then, the shaft cylinder 87 rotates via the key 90, and further the guide pusher 102 and the key 92 rotate.
The piston 92 rotates by the same angle via the slide arm 83 and the tool holder 82A18.
2B, the main body 81a and the slide arm 83 are rotated in the direction of the arrow as shown in FIG.
That is, each holding part 82A, 82B is connected to each tool magazine 65.7.
3. Position the tool at a position that matches the tool change positions 11Z2 and Zl. As a result, the tool 43 or 49 positioned at the tool holding parts 82A, 82B and the tool exchange positions Z2, Zl of each tool magazine 65.73 has its holding cylinder 82d and shank 37 aligned with the imaginary line in FIG. Figure 10 (bl, t
Match as shown in el. In this state, when pressurized oil is supplied to the cylinder 87a of the shaft cylinder 87 from the port 97, the piston 92 is pushed up in the direction of the arrow (■), and the main body 81m fixed to the piston 92 also moves in one direction. Then, the slide arm 83 and tool holding part 82A18
2B also rises in the ■ direction, and the tool 43 at positions Z2 and Zl
Or the shank 37 of 49 is as shown in FIGS. 9 and 10 (d).
As shown in the figure, it fits into the cylindrical holding cylinder 82d. When the shank 37 is fitted into the holding cylinder 82d, the shank 37
The lock pin 82e is attached to the small diameter portion 37b of the coil spring 82f.
The elasticity of the tool 43 or 49 prevents the tool 43 or 49 from accidentally falling off from the holding parts 82A, 82B together with the tool holder 35.50.

Now, for example, as shown in FIG.
Assuming that A is positioned at position z2 and the holding part 82B is positioned at position fiZ1, the tool 43 or 49 to be replaced of the tool holder 65 is held in the holding part 82A,
The tool 43 or 49 used in the next machining of the tool holder 73 is now held in the holding portion 82B. In this state, pressure oil is supplied to the port 93, and the drive piston 85.8
5 is moved backward in the G direction, and therefore the tool holding parts 82A, .
82B is moved in the G direction together with slide arms 83 and 83. Then, the tool 4 in the tool holding parts 82A and 82B
3 or 49 is the magazine claw 6 of each tool magazine 65.73
9a, as shown in FIG. As shown in FIG. 10 (fl), the tool holder 82A is positioned at the position Z1 and the tool holder 82B is positioned at the position corresponding to the position Z2.Furthermore, pressurized oil is supplied to the port 95, and each tool holder 82A and 82B are made to protrude in the H direction via the pistons 85 and 85. Then,
As shown in FIG.
The tool 43 or 49 held in B is stored in the magazine claw 69a where it had been held until then, and the tool 43 or 49 in the tool holder 82B is stored in the tool 43 or 49 held in the tool holder 82A of the tool magazine 65. 49 is stored in the magazine claw 69a that had been held until then. Next, pressure oil is supplied to the port 96 to move the ATC arm 81 to the piston 9.
2, each tool 43 or 49 is pulled out from the holding cylinder 82d of each tool holding part 82A, 92B by retracting the lock bin 82e against the elasticity of the coil spring 82f, and each magazine is removed. In the claw 69a, the first
It is held as shown in Figure 0 fhl.

In this way, the chains 69 of the tool magazines 65 and 73 are driven to rotate, and the unnecessary tools are successively replaced with new tools to be used for the next machining.
The tools are exchanged between magazines by positioning the tool at 1 and inverting the ATC arm 81 by 180 degrees. When a predetermined number of tools have been replaced, pressure oil is supplied to the supply port 99 or 100 of the hydraulic motor 91, and A
Move the TC arm 81 to the retracted position ES shown in FIG.
drive to evacuate. Next, the carriage 46 is moved in the A1B direction, the cross slide 63 is moved in the ESF direction, and
Start machining operation for the next workpiece. At this time, since the ATC arm 81 is at the predetermined retracted position ES, there is no interference between the tool magazine 73 and the ATC 7-arm 81, which prevents normal machining operations, and the machining operations are performed smoothly.

Further, in the above embodiment, the tool holding stand 2 is provided so as to be movable and retractable with respect to the tool magazine 65 in the directions of arrows A and B using the cylinder 47.
It goes without saying that the tool magazine 65 and the tool magazine 65 may have any configuration as long as the tool holding table 2 can be moved and retracted relative to the tool magazine 65 during tool exchange.
The tool holding stand 2 is fixedly provided on the cross slide 63,
It is of course also possible to provide the tool magazine 65 so as to be movable with respect to the tool holder 2 in the directions of arrows A and B using a suitable reciprocating drive means such as a Schilling.

Furthermore, when the tool magazine 65 side is provided movably in the direction of the arrow ASB, the shank 37 of the tool head 35.50 of each tool is attached to the housing 65a side of the tool magazine 65, as shown in FIG. When the tool magazine 65 is moved in the B direction, that is, when the tools 43 and 49 are held on the tool holder 2, the tool holder is disposed as shown by the imaginary line in FIG. The shanks 37 of the tools 43.49 other than the tools 43.49 held on the table 2 are stored in the dust-proof cover 65b7 to prevent chips, etc. generated during machining from adhering to the shanks 37. With this configuration, the tool holding operation between the tool throat 35.50 and the head hole 3 is performed under the clean shank 37, making it possible to maintain smooth tool exchange operations over a long period of time. . As shown in FIGS. 3 and 13, the dust cover 65b has a plurality of cylindrical insertion openings 65c corresponding to the arrangement of the tool heads 35, 50 on the chain 69. Insertion port 65
As shown in FIG. 3, the ring 65c has a seal ring 65d that comes into contact with the end surface 36a of the boss portion 36 of the tool head 35 to seal the yank 37 from the outside. Further, on the right side of the seal ring 65d in FIG.
As shown in FIG. 13, the upper and lower insertion ports 65c are integrally formed (that is, the upper eight storage chambers 65e and the lower seven storage chambers 65a are formed integrally with each other. are in communication).

Note that the tool magazine 65.73 supported the tool head 35.50 on which the tools 43.49 were attached by the chain 69, but the tool head 35.5
The means for supporting 0 is not limited to the chain 69, but may also include a belt, etc.
Of course, any type of wrapping intermediate node may be used as long as it is endlessly formed.

Furthermore, although the above-mentioned embodiment has been described with respect to the case where only one replenishment tool magazine such as the tool magazine 73 is provided, the number of replenishment tool magazines is not limited to one, but may be any number of two or more. Of course, in that case, the replenishment tool magazine is arranged in the spindle axis direction (Z-axis direction).
It is desirable to provide them in parallel.

In addition, as shown in FIG. 14, a replenishment tool magazine 73
Of course, it is also possible to configure the tool magazine 65 only without using the tool magazine 65.

Moreover, the replenishment tool magazine does not necessarily have to be fixed, and may be provided in a form that is movable with respect to the wheel 11jl.

(g) 0 Effects of the Invention As described above, according to the present invention, the tool magazine 65 is provided with a winding medium such as a chain 69 or a belt so as to be movably driven, and a plurality of tools are attached to the medium. 43.49, head hole 3 of tool holder 2
and tools 43 and 49 are used to connect the sprocket 66 of the intermediate joint.
The tool magazine is supported and mounted via a tool mounting means such as a tool magazine claw 69a so as to be selectively aligned at the bent portion of the part, and further, the supporting relationship between the tool and the winding mediating node is temporarily released. A support release means such as a stopper bin 69r is provided, and the tool magazine 65 is moved together with the tool holding table 2 via the carriage 46, cross slide 63, etc.
The tool holder 2 is provided so as to be movable synchronously in the direction of the spindle axis, that is, in the directions of arrows A and B, and in the directions of arrows E and F that are perpendicular thereto. The tool holding stand 2 is provided so as to be retractable.
Since the tool is provided with a tool holding means such as a clamping rod 29 capable of holding the tool 43.49 on the intermediate joint, when the tool 43.49 is clamped, the tool is temporarily wrapped around the intermediate joint. When the tool 43.49 is clamped by the tool holder 2, a force harmful to accurate positioning of the tool 43 is applied to the tool 43.49 from the winding intermediate joint side. Therefore, accurate positioning of the tools 43, 49 with respect to the tool holder 2 becomes possible.

In addition, if the tool 43 is elastically supported by an elastic means such as a bush 69i against the intermediate joint, even if there is a slight misalignment between the tool and the tool holder 2, the tool can be smoothly moved into the head hole. 3 can be inserted and set.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a combined machining lathe according to the present invention, FIG. 2 is a front sectional view showing a tool holding stand in the lathe shown in FIG. 1, and FIG. 3 is a side view showing an embodiment of the lathe shown in FIG. An enlarged view showing the tool mounting part of the tool magazine in
Figure 4 is an enlarged view of the shank of the tool, Figure 5 is a side sectional view showing the tool head and head hole, Figure 6 is a front sectional view showing the turning tool being held, and Figure 7 is the ATC. A front view showing the details of the device, FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7, FIG. 9 is a front view when the tool holder of the ATC device holds a tool, and FIG. 11 is a sectional view of the tool holder taken along the plane XI-XI in FIG. 3; FIG. 12 is a sectional view taken along the xu-xu plane in FIG. 11; FIG. 13 is a view showing the housing portion of the tool magazine, and FIG. 14 is a side view showing another embodiment of the present invention. 1...Compound machining lathe 2...Tool holding stand 3...Head hole 29...Holding means (clamping rod) 43.49... ...Tool 65...Tool magazine 66...Bent part (sprocket) 69...
- Winding medium joint (chain) 69a... Tool attachment means (tool magazine claw) 69 "... Support release means (stopper pin) Applicant: Iduga Iron Works Co., Ltd. Agent, Patent attorney Phase 1) Shinji (and 1 other person) I: Figure 3 Figure 5 Figure 8 Figure 9 (821:3) Figure 10 (Q) (b) Figure 11 Figure 12

Claims (1)

[Claims] Move the winding medium to the tool magazine It is provided so as to be freely drivable, and at the intermediate node, Place multiple tools into the head holes of the tool holder. the tool at the bent portion of the intermediate joint. Tool loading hand for selective alignment The tool is supported and mounted via a step, and the tool is further mounted. The supporting relationship between the two wrapping mediating nodes is unified. Providing support release means that can be released from time to time, In addition, the tool magazine together with the tool holding stand, Same in the direction of the spindle axis and in the direction perpendicular to it. In addition to making it movable from time to time, Place the tool holding stand against the tool magazine. The tool is provided so that it can be relatively retracted, and the tool A holding stand can hold the tool on the intermediate joint. Composite tool consisting of tool holding means Processing lathe.