JPS6219338A - Tool magazine - Google Patents

Abstract

PURPOSE:To make a lot of tools stowable in a small space so well, by installing a tool housing drum where holding plates holding plural tools around are installed at plural stages top and bottom free of rotation, and making it delivered in a space between a tool transfer device and the drum. CONSTITUTION:A tool housing drum 17 is provided with a frame 17a whose whole body is formed in a cylindrical form, and toroidal tool holding plates 20 and 20 are attached to an outer circumferential part of the frame 17a at two stages top and bottom. And, a Y-shaped tool holding groove 20a is radially formed in an outer circumferential part of each of these tool holding plates 20, while an interval between adjacent tool holding grooves 20a and 20a, there is provided with each guide plate 20b. And, when a transfer cylinder 25 or 25' is driven and a piston rod 25a is projected in a K direction, a bracket 27d of a plate 27 so far fitted in and engaged with an engaging groove 25c of this piston rod 25a makes a roller roll on the plate 20, transferring the plate 27 and the supporting tool both onto a support block from the plate 20.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a tool magazine that can store a large number of tools in a compact manner.

(b), Prior Art Conventionally, as this type of tool magazine, a type in which tools are held on a disk-shaped tool drum has been known.

(C)0 Problems that the invention aims to solve However, there is a limit to the number of tools that can be stored in these tool magazines, and as more and more machine tools are being operated unmanned for long periods of time, the number of tools that can be stored in these tool magazines is increasing. It has been desired to develop a tool magazine that can store and supply a number of tools.

In addition, recently, systems have been developed that supply the tools necessary for machining from a tool storage containing a large number of tools to each machine tool, but such systems are large-scale.
It is often inappropriate to apply it to small and medium-sized machine tool equipment due to cost and installation space.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, the present invention aims to provide a tool magazine that can store a large number of tools in a small space and can therefore be easily applied to small and medium-sized machine tool equipment. .

(d) Means for solving the zero problem, that is, the present invention, by storing tools three-dimensionally,
Focusing on the fact that the number of stored tools can be easily increased, the tool storage drum (20) is equipped with a tool holding plate (20) provided with a plurality of tool holding means (20a) around which tools can be held in multiple stages in the vertical direction. 17) rotatably supported, and a tool transfer means (25) for transferring the tool stored in the tool holding means (20a) to and from the tool transfer means (15). be done.

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions in the drawings. The following r (el
The same applies to the column "0 effect".

(e) 0 Effect With the above-described configuration, the present invention allows the tools to be stored in the tool holding plate provided in the vertical direction, so that the number of tools stored can be easily increased even in a narrow space.

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

FIG. 1 is a perspective view showing machine tool equipment in which an embodiment of the tool magazine according to the present invention is used, FIG. 2 is a sectional view of the tool magazine shown in FIG. 1, and FIG. 3 is a cross-sectional view of the tool magazine shown in FIG. FIG. 4 is a perspective view showing the tool holding plate, FIGS. 5 and 6 are perspective views showing the turning tool, and FIG. 7 is the rotary tool adapter plate 1 and the adapter plate. FIG. 3 is a perspective view showing a held rotary tool.

As shown in FIG. 1, the machine tool equipment 1 has a turning center 2 which is a machine tool, and the turning center 2 has a table 3 for holding a workpiece, which can be freely rotated in the directions of arrows A and B. It is provided. A head 6 is provided above the table 3 so as to be movable and driven on a cross rail 7 in the directions of arrows C and D.
A main shaft 5 is provided in such a manner that it can protrude and retract in the directions of arrows E and F and is rotatably supported. cross rail 7
is supported by a column 9, and a guide rail 10 is further provided on the cross rail 7. Guide rail 10
A tool shifter 11 is supported so as to be movable along the guide rail 10 in the directions of arrows C and D.
It is formed in the direction of arrow G1H perpendicular to the installation direction of o. A tool holding bracket (llb) is supported on the guide rail (lla) so as to be movable and driven in the directions of arrows G and H along the guide rail (lla).
1 lb has two U-shaped tool holding grooves 11c and 111c.
@ Formed in parallel.

By the way, a tool magazine 12 according to the present invention is installed on the right side of the turning center 2 in FIG. 1, and the tool magazine 12 has a frame 13. frame 1
3 is provided with an elevator 15, and the elevator 15 has a transfer table 15a in the vertical direction in the figure, that is, the arrow E,
It is provided so that it can be freely moved and driven in the F direction. Transfer table 15a
A support stand 15b is provided, and a holding groove 15c is formed in the support stand 15b.

Further, as shown in FIG. 2, a fixed shaft 16 is erected on the frame 13, and a tool storage drum 17 is mounted on the fixed shaft 16 via a bearing 19 as indicated by the arrow 1 in FIG. It is rotatably supported in the J direction. The tool storage drum 17 is
The frame 17a has a cylindrical frame 17a as a whole, and as shown in FIGS. It is installed in two stages, upper and lower in the figure. As shown in FIG. 3, approximately Y-shaped tool holding grooves 20a are radially formed on the outer circumference of each tool holding plate 20, and between adjacent tool holding grooves 20a and 20c, a guide plate 20b is formed. are provided for each.

Further, as shown in FIG. 3, brackets 22 are provided on the frame 13 at a predetermined pitch, and a retaining ring 21 formed in an annular shape is attached to the bracket 22 to support the support member 22.
1a. Furthermore, as shown in FIG. 2, a housing 23 is fixed to the upper end of the fixed shaft 16, and an annular retaining ring 21' is installed on the housing 23 via a support member 23a. ing.

The holding ring 21.21' has an opening 21b formed at a position corresponding to the tool unloader position X of the tool magazine 12, and a transfer cylinder 25 is formed on the frame 13 and housing 23 facing the opening 21b .25' is provided in such a manner that the piston rod 25a is protruded and retracted freely in the L direction as indicated by the arrow. A hook 25b in which an engagement groove 250 is formed is provided at the tip of the piston rod 25a.
3, a guide rod 25d is fixed to the guide rod 25d via a bearing 26 so as to be slidable in the L direction in the direction of the arrow.

On the other hand, a tool plate 27 is mounted in each tool holding groove 20a of the tool holding plate 20.
7 has a main body 27b as shown in FIG.
A plurality of rollers 27a are rotatably supported on the main body 27b. The main body 27b has a U-shaped tool holding groove 27c.
The main body 27b is further formed with an inverted bracket 27d. A turning tool 29 shown in FIGS. 5 and 6 can be mounted in the tool holding groove 27c via a groove 29b formed in the tool holder 29a, and a rotating tool 30 shown in FIG. 7 can also be mounted. , can be attached via an adapter plate 31. When installing the rotary tool 30, the adapter plate 31 is fixed on the tool plate 27 with its tool holding grooves 31c and 27c aligned, and the rotary tool 30 is attached to the tool plate 27 in this state. Attach the tool holder 30a by fitting the groove 30b into the tool holding groove 31c (rotary tool 3
The adapter plate 31 is necessary because the groove 29b of the tool holder 29a of the turning tool 29 is smaller than the groove 29b of the tool holder 29a of the turning tool 29. ).

By the way, a gear 17b is fixed to the lower end of the tool storage drum 17 in FIG. 2, which is rotatably supported by the fixed shaft 16 of the tool magazine 12. A rotatably supported drive shaft 13a is connected to a gear 13 provided on the drive shaft 13a.
They mesh through c.

Since the machine tool equipment 1 has the above-described configuration, when replacing the tool mounted on the spindle 5 while the turning center 2 is machining a workpiece mounted on the table 3, the tool must first be replaced. The drive shaft 13a of the magazine 12 is rotationally driven to drive the tool storage drum 1 through the gear 13C117b.
7 is rotated around the fixed shaft 16. In this way, when the tool storage drum 17 rotates in the directions of arrows T and J in FIG. 1, the tool holding plate 20 also rotates.
Next, the tool holding groove 20a in which the tool plate 27, in which the tools to be attached to the main spindle 5 are stored, is mounted, is positioned at a predetermined tool entry/exit position X. Each tool holding plate 20
As shown in FIG. 3, the tool plate 27 stored in the tool holding groove 20a is placed in a manner separated by a guide plate 20b, and the tool plate 27
The tip of the bracket 27d is attached to a retaining ring 21.2 provided in an annular shape, as shown in imaginary lines in FIGS. 2 and 3.
Since the tool storage drum 17 is supported so as to be located inside the tool storage drum 1. Even when rotated in the J direction, each tool plate 27 is moved outward from the tool holding groove 20a (in the direction of arrow M in FIG. There's no way it will fall off.

In this way, the tool storage drum 17 is rotationally driven, and when the tool holding groove 20a in which the tool to be attached to the main spindle 5 is stored is positioned at the predetermined tool carryout position X,
Drive the elevator 15 to move the support table 15b to the transfer table 15.
a, move it up and down in the direction of arrow E1F, and lift the support stand 15bJi.
! The positioned tool is positioned in alignment with the tool holding plate 20 in which the tool is stored.

Next, the tool holding plate 2 in which the tool to be replaced is stored.
By driving the transfer cylinder 25 or 25'' corresponding to
The piston rod 25a is driven to protrude in the direction of the arrow in FIG. Then, the hook 25b of the piston rod 25a
25 c The bracket 27d of the tool plate 27 that was engaged with the IC is moved in such a manner that the four-rings 27a of the tool plate 27 are rolled on the tool holding plate 20, and the tool plate 27 and the corresponding bracket 27d are moved. Tool plate 27
The tool is transferred from the tool holding plate 20 onto the support stand 15b together with the tool supported by the tool. In addition, when carrying out the tool [X, as already mentioned, the retaining ring 21.
The tool play 1-27, which is provided with an opening 21b and further positioned at the tool loading/unloading position
As shown in FIG. 2, it fits into the engaging groove 25c of the.

Therefore, the tool plate 27 is in a state where it can be transferred onto the elevator 15 by driving the piston rod 25a in the horizontal direction.

In this way, the tool is transferred to the transfer table 15a together with the tool plate 27.
After being transferred to the top, the elevator 15 moves to the transfer table 15.
a in the direction E, and move the transfer table 15a to the tool shifter 1.
Position it at the transfer position Y with 1.

Next, the tool shifter 11 is driven to move along the guide rail 10 in the direction of arrow CXD, as shown in FIG.
Further, the tool holding bracket 11b is driven in the directions of arrows G and H along the guide rail lla, aligning the empty tool holding groove +1c of the tool holding bracket llb with the tool plate 27 on the transfer table 15a. , transfer table 15
The tool plate 27 on a is housed and held together with its tools in the tool holding groove 11c. When the tool plate 27 is held in the tool holding groove 11c, the tool shifter 11 moves in the direction of arrow C.
It is driven to move in the SD direction, and the tool holding bracket)
b is driven in the G and H directions, and the tool shifter 11 is positioned at a predetermined ATC position.

In this state, move the head 6 along the cross rail 7 in the direction of the arrow, and further move the main shaft 5 in the directions of the arrows E and F.
The used tool attached to the spindle 5 is transferred to the tool shifter 11.
is positioned at the ATC position. and,
Move the spindle 5 a predetermined distance in the F direction and remove the used tool attached to the spindle 5 from the tool holding bracket ll.
Place the empty tool plate 27 on the empty tool plate 27 supported by one of the tool holding grooves 11c in b.
7 is for holding the tool that was previously attached to the spindle 5, as will become clear in the description later. Also,
The other tool holding groove 110 of the tool holding bracket llb supports the tool plate 27 which was previously transferred from the elevator 15 and holds the tool to be replaced.

).

In this way, when the used tool is returned to one of the tool plates 27, the main shaft 5 is raised in the E direction, and the tool holding bracket Ilb is appropriately moved in the direction of the arrow GSH.
The main shaft 5 faces a tool plate 27 holding a tool to be mounted next.

In this state, the main spindle 5 is lowered again in the F direction, and the tool held by the tool plate 27 is attached to the main spindle 5. The spindle 5 with the tool attached thereto is moved together with the head 6 in the direction of arrow C, and the rework machining operation is restarted using the replaced tool.

On the other hand, the tool shifter 11 from which the used tool has been returned returns to the transfer position Y with the elevator 15 again, and moves to the transfer table 15 a of the elevator 15 (, □ tool plate 27 on which the used tool is mounted). (Thus, only the tool plate 27 for holding the tool currently attached to the spindle 5 remains on the tool shifter 11.) The used tools are transferred to the tool plate 27 on the elevator 15. When the tool is transferred, the elevator 15 lowers the transfer table 15a in the direction of arrow F, and aligns the transfer table 15a with the tool holding plate 20 to which the tool is to be returned.

At this time, the tool storage drum 17 is also driven to rotate as appropriate in the direction of the arrow 11J, and the tool holder Fs20a of the tool holder plate 20 where the tool is to be returned is positioned at a predetermined tool carryout position X.

Next, the transfer cylinder 25 corresponding to the tool holding plate 20 provided with the positioned tool holding groove 20a
Alternatively, drive 25' to project the piston rod 25a in the direction of the arrow, engage the hook 25b with the bracket l-27d of the tool plate 27 on the transfer table 15a, and in this state, move the piston rod 25a to L. move back in the direction. Then, the tool plate 27 on the transfer table 15a is transferred to the support table 15.
The roller 27a rolls on the tool b and moves in the L direction and fits into the tool holding groove 20a, completing the operation of returning the tool to the tool magazine 12.

In this way, when the tool return is completed, the tool storage drum 17 is rotated again, and the tool holding groove 20a, in which the tool to be mounted on the main shaft 5 is stored, is moved to the predetermined tool carryout position X.
Begins positioning operation.

Note that the tool magazine 12 stores the turning tools shown in FIGS. 5 and 6 and the rotating tool shown in FIG. Adapters and the like are also housed in a supported manner on the tool plate 27. Note that a method for mounting a rotary tool and a turning tool on the same spindle 5 has already been proposed in Japanese Patent Application No. 59-175704, etc., so detailed explanation thereof will be omitted here.

In addition, although the above-mentioned embodiment explained the case where the tool holding plate 20 for holding tools is provided in two stages in the vertical direction, the tool holding plate 20 is not limited to two stages, but may be configured in any number of stages, including three or more stages. Of course, it is okay to do so.

(g) 0 Effects of the Invention As described above, according to the present invention, the tool holding plate 20, which is provided with a plurality of tool holding means such as the tool holding grooves 20a around which the tool can be held, can be moved in the vertical direction. A tool transfer cylinder 25 or the like that rotatably supports the tool storage drums 17 provided in multiple stages and transfers the tools stored in the tool holding means to a tool transfer means such as the elevator 15. Since the structure is provided with a delivery means, a large number of tools can be stored in the three-dimensionally provided T-shaped tool holding plate 20, which saves space and can be easily applied to small and medium-sized machine tool equipment. becomes.

Furthermore, if the tool holding means is provided with a removably attached tool plate 27 and the tool is supported via the tool plate 27, tools of different sizes, such as rotating tools or turning tools, can be used. Even if there is, tools of various sizes can be stored by simply changing the dimensions of the tool supporting portion of the tool plate 27, and the tool holding means of the tool holding plate 20 can be adapted to the dimensions of the tools to be stored. Tool magazine 1 that is highly versatile because it eliminates the need for force.
2 can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing machine tool equipment in which an embodiment of the tool magazine according to the present invention is used, FIG. 2 is a sectional view of the tool magazine shown in FIG. 1, and FIG. 3 is a cross-sectional view of the tool magazine shown in FIG. 4 is a perspective view showing a tool holding plate, FIGS. 5 and 6 are perspective views showing a turning tool, and FIG. 7 is a rotating tool adapter plate and a tool held by the adapter plate. FIG. 2 is a perspective view showing a rotary tool. 12... Tool magazine 15... Transfer means (elevator) 17...
...Tool storage drum 20...Tool holding plate 20a...Tool holding means (tool holding groove) 25.
...Delivery means (transfer cylinder) 27...
・Tool plate

Claims (2)

[Claims] (1) In a tool magazine that can store multiple tools and supply tools to a tool transfer means, the tool holding plate, which is provided with multiple tool holding means capable of holding tools around the periphery, is moved up and down. A tool configured to rotatably support a tool storage drum provided in a plurality of stages in a direction, and to be provided with a tool transfer means for transferring tools stored in the tool holding means to and from a tool transfer means. magazine. (2) The tool magazine according to claim 1, wherein a tool plate is detachably provided on the tool holding means, and the tools are supported via the tool plate.