JPS6219337A - Tool housing and changing method - Google Patents

Abstract

PURPOSE:To aim at the promotion of freedom in a housing rate of tools, different in holder size each, inside a magazine, by holding a tool in a tool holder different in size on a tool holding device via a tool plate, and making a tool change too so as to be transferred to a machine tool at each plate. CONSTITUTION:When a used tool is put back to a tool plate 27 on one side, a spindle 5 goes upward in an E direction while a tool holding bracket 11b moves in G and H directions, where by the spindle 5 and the tool plate 27 where a tool to be next attached is held are opposed with each other. Under this state, the spindle 5 is made to go down in an F direction again, the tool held by the plate 27 is attached to the spindle 5, and the spindle 5 moves in a C direction together with a head 6, thus machining of a work is reopened by the changed tool. On the other hand, a tool shifter 11 to which the used tool is returned goes back to a delivery position Y with an elevator again, transferring the plate 27, on which the used tool is mounted, on a transfer block 15a of the elevator 15. Thus, tools different in size of a tool holder come possible to be housed at an optional rate.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Field of Application The present invention is applied to exchanging tools with different tool holder dimensions between a tool storage means such as a tool magazine and a machine tool. The present invention relates to a tool storage and exchange method suitable for.

(b), Conventional technology Conventionally, when exchanging tools with different tool holder dimensions, such as turning tools and rotary tools, between a tool magazine and a machine tool, tool threads of the respective dimensions are stored in the tool magazine. The location for storing the tool is determined in advance, the shape of the tool holding means is formed to match the dimensions of the tool holder of the tool to be stored, and each tool is stored in the dedicated tool holding means. was.

(C) 6 Problems to be Solved by the Invention However, in these methods, the number of tools stored in the tool magazine is determined in advance for each size of tool holder (for example, 30 turning tools, rotating If there are 15 tools, etc.), it becomes impossible to change the storage contents of the tool holder of each size, that is, the turning tool and the rotary tool, depending on the processing content.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a tool storage/exchange method that allows the storage ratio of tools with tool holders of different sizes in a tool magazine to be freely changed.

(d) Means for Solving the 6 Problems That is, the present invention provides that tool holders with different dimensions are not directly attached to the tool magazine, but if the tool holders and therefore the tools are held via some kind of adapter, the tool magazine We focused on the fact that even if the tool holding means on the side has the same shape, it is possible to hold multiple types of tool holders, and we developed a tool storage means (12
), a tool plate 1-(27) is removably provided in the tool plate (27) via a tool holding means formed in the same shape, and a tool holder (29) of different dimensions is provided in the tool plate (27).
a, 30a) is removably attached, and when replacing the tool, the tool to be replaced is attached to the tool play) (2
7) from the tool holding means and remove it from the tool transport means (
15, 11) to a predetermined ATC position, and the tool exchange operation by the machine tool (2) is performed by the tool play 1.
- (27) configured to perform this on a tool supported on the

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

(e) 6 Effects With the above-described configuration, the present invention provides tools (29, 30) having tool holders of different sizes (tool play) (27
) is held in the tool holding means via the tool play (27), and tool exchange is also performed by transferring the tool play (27) to the machine tool 2 side.

(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 to which an embodiment of the tool storage/exchange method according to the present invention is applied, FIG. 2 is a sectional view of a tool magazine in the machine tool equipment of FIG. 1, and FIG. Figure 2 is a plan view showing the main parts of the tool magazine, Figure 4 is a perspective view showing the tool holding plate, Figures 5 and 6 are perspective views showing the turning tool, and Figure 7 is the rotary tool adapter plate and FIG. 3 is a perspective view showing a rotary tool held by the adapter plate.

As shown in Fig. 1, the machine tool equipment 1 has a turning sensor 2 which is used for machining. It is provided so that it can be driven freely. 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 the column 9, and the cross rail 7 is further provided with a 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.
They are formed in the directions of arrows G and H, which are perpendicular to the installation direction of 0. 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).
-11b has two U-shaped tool holding grooves 11c and llc.
They are formed in parallel.

By the way, a tool magazine 12 is installed on the right side of the turning center 2 in FIG. 1, and the tool magazine 12 has a frame 13.

The frame 13 is provided with an elevator 15,
A transfer table 15a is provided in the elevator 15 so as to be movable in the vertical direction in the figure, that is, in the directions of arrows E and F. A support stand 15b is provided on the transfer table 15a, and a holding groove 150 is formed in the support stand 15b.

Further, as shown in FIG. 2, a fixed shaft 16 is provided upright on the frame 13, and a tool storage drum 17 is mounted on the fixed shaft 16 via a bearing 19 in the direction of arrows ■ and J in FIG. It is rotatably supported. The tool storage drum 17 is
The frame 17a has a frame 17a formed in a generally cylindrical shape as a whole, and the frame 17a has annular tool holding plates 20, 20 on its outer periphery, as shown in FIGS.
are installed in two stages, upper and lower in Figure 2. As shown in FIG. 3, on the outer periphery of each tool holding plate 20, a large number of substantially Y-shaped tool holding grooves 20a having the same shape are formed radially. , a guide plate 2°b are provided, respectively.

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 a retaining ring 21' formed in an annular shape is installed on the housing 23 via a support member 23a. There is.

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 25c 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 7b. A U-shaped tool holding groove 27c is formed in the main body 27b. An inverted-shaped bracket 27d is formed on the main body 27b. The turning tool 29 shown in FIGS. 5 and 6 can be mounted in the tool holding groove 27c via the Fl 129b formed in the tool holder 29a, and the rotating tool 30 shown in FIG. It can be installed via the adapter plate 31. Note that when mounting the rotary tool 30, the adapter plate 31 is placed on the tool plate 27, and its tool holding grooves 31c and 2? c.
The tool plate 27 is fixed in an aligned manner.
The tool holder 30a of the rotary tool 30 is installed in such a way that the groove 30b of the tool holder 30a is fitted into the tool holding groove 31c (the groove 30b of the tool holder 30a of the rotary tool 30 is
Since it is smaller than the groove 29b of the tool holder 29a of No. 29,
An adapter plate 31 is required.

).

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 drive shaft 13a is rotatably supported by a gear 1 provided on the drive shaft 13a.
They mesh through 3c.

Since the machine tool mounting (lull) has the above configuration, when changing the tool mounted on the spindle 5 while the turning center 2 is machining a workpiece mounted on the table 3, first , the drive shaft 13a of the tool magazine 12 is driven to rotate, and the tool storage drum 17 is rotated about the fixed shaft 16 via the gears 13c and 1?b. ■ When the tool holding plate 20 rotates in the J direction, the tool holding plate 20 also rotates, so the tool holding groove 20a in which the tool plate 27 containing the tool to be attached to the main spindle 5 is mounted is moved to a predetermined tool unloading position. Position the person at position X. Tool plate 2 stored in the tool holding groove 20a of each tool holding plate 20
As shown in FIG. 3, the tool plate 27 is placed in a manner separated by a guide plate 20b, and the tip of the bracket 27d of the tool plate 27 is aligned as shown in the imaginary line in FIGS. 2 and 3. A retaining ring z1 provided in an annular shape
．． 21', each tool plate 27 is supported by the bracket 27d and the retaining ring 21 even when the tool storage drum 17 is rotated in the directions of arrows 1 and J.
．． By engaging 21', there is no possibility that the tool will move outward from the tool holding groove 20a (in the direction of arrow M in FIG. 3) and fall off from the tool holding plate 20.

In this way, the tool storage drum 17 is rotationally driven, and the tool holding groove 20a in which the red tool to be attached to the main shaft 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 in the direction of the arrow E1F to position the support stand 15b at a position aligned with the tool holding plate 20 in which the positioned tool is housed.

Next, the tool holding plate 2 in which the tool to be replaced is stored.
The transfer cylinder 25 or 252 corresponding to 0 is driven to cause the piston rod 25a to protrude in the direction of the arrow in FIG. Then, the hook 25 of the piston rod 25a
The tool plate 27 that was fitted into the engagement groove 25c of b.
The bracket 27d is attached to the roller 27 of the tool plate 27.
A is moved in a rolling manner on the tool holding plate 20,
Together with the tool plate 27 and the tools supported by the tool plate 27, the tool holding plate 2G to the support stand 15b
Translated above. In addition, at tool carry-out person position X,
As already mentioned, the opening 2 in the retaining ring 21.21'
1b, and the tool plate 27 positioned at the tool loading/unloading position X is attached to its bracket 27d.
However, the engagement groove 25 of the piston rod 25a in the retracted state
c, as shown in Figure 2. 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.
a4! The transfer table 15a is raised in the E direction, and the transfer table 15a is positioned at the transfer position WY between the tool shifter 11 and the transfer table 15a.

Next, the tool shifter 11 is driven to move along the guide rail 10 in the directions of arrows C and D, as shown in FIG.
Further, the tool holding bracket (llb) is driven in the direction of the arrow G1H along the guide rail lla to align the empty tool holding groove 11c 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 stored and held together with the tool 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 arrows C and D.
Further, the tool holding bracket llb is driven in the G1H direction, and the tool shifter 11 is moved to a predetermined AT position.
It is positioned at position C.

In this state, the head 6 is moved in the direction of the arrow along the cross rail 7, and the spindle 5 is further moved in the directions of arrows E and F, so that the tool shifter 11 positions the used tool attached to the spindle 5. Position at a predetermined ATC position. Then, the main spindle 5 is moved a predetermined distance in the direction F, and the used tool mounted on the main spindle 5 is placed on the empty tool plate 27 supported by one tool holding groove 11C of the tool holding bracket 11b. (This empty tool plate 27 will be explained later, but until then the main spindle 5
It is used to hold tools attached to the In addition, the other tool holding bracket 11b
11c supports a tool plate 27 holding the tools to be replaced, which were previously transferred from the elevator 15. ).

In this way, when the used tool is returned to one tool plate 27, the main shaft 5 is raised in the E direction, and the tool holding bracket llb is appropriately moved and driven in the arrow G and H directions.
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 machining operation of the workpiece is restarted using the replaced tool.

On the other hand, the tool lifter 11 from which the used tool has been returned returns to the transfer position Y to receive the elevator 15 again, and places the tool plate 27 on which the used tool is mounted on the transfer table 15a of the elevator 15. (Thus, only the tool plate 27 for holding the tool currently attached to the spindle 5 remains on the tool shifter 11.)

Used tools are placed on the elevator 15 on the tool plate 27.
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 rotated as appropriate in the direction of the arrow 11J, and the tool holding groove 20a of the tool holding plate 20 in which the tool is to be returned is positioned at a predetermined tool loading/unloading position X.

Next, the transfer cylinder 25 corresponding to the tool holding plate 20 provided with the positioned tool holding groove 20a
, or 25' to project the piston rod 25a in the direction of the arrow, engage the hook 25b with the bracket 27d of the tool plate 27 on the transfer table 1.5a, and in this state, the piston rod 25a to move back in the L direction. Then, the tool plate 27 on the transfer table 15a moves in the L direction as the roller 27a rolls on the support table 15b, fits into the tool holding groove 20a, and returns the tool to the tool magazine 12. is completed.

In this way, when the return of the tool is completed, the tool storage drum 17 is driven to rotate 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 loading/unloading 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.

In the above-described embodiment, an adapter means such as an adapter plate 31 is provided when the rotary tool 30 is mounted on the tool plate 27. The size of each tool is 29.3
using a tool plate 27 of a shape adapted to 0 (i.e.
Of course, it is also possible to use a dedicated tool plate 27 for each tool holder size.

(g) 0 Effects of the Invention As explained above, according to the present invention, in the tool storage means such as the tool magazine 12, through the tool holding means such as the tool holding groove 20a formed in the same shape, A tool plate 27 is provided removably, and the tool plate 27
A tool having tool holders 29 a and 30 a of different sizes is detachably attached to the tool holder 29 and 30 a, and when replacing the tool,
The tool to be replaced is removed together with the tool plate 27 from the tool holding means, and is transported to a predetermined ATC position by tool transport means such as the elevator 15 or tool shifter 11, and the tool is replaced by a machine tool such as the turning center 2. the action,
This is done for the tool supported by the tool plate 27.1 Thus, even if the tool holder has different dimensions,
By holding the tool on the tool plate 27 that is compatible with the tool holder, on the tool storage means side, it becomes possible to hold tools with tool holders of different dimensions simply by supporting the tool plate 27, and the tool storage means There is no need to prepare a fixed storage space on the side that matches the dimensions of the tool holder, and therefore tools with different tool holder dimensions, such as turning tools and rotary tools, can be stored in any ratio, making it possible to store tools in any proportion. It becomes possible to provide a tool storage and exchange method that is highly flexible in terms of supply.

Also, tools 29.30 with tool holders of different dimensions
By attaching the tool holder to the tool plate 27 via an adapter means such as the adapter plate 31, it becomes possible to absorb the dimensional difference of the tool holder with the adapter means.
The tool plate 27 can also be made into the same shape.
It becomes possible to construct a system with greater versatility.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing machine tool equipment to which an embodiment of the tool storage/exchange method according to the present invention is applied, FIG. 2 is a sectional view of a tool magazine in the machine tool equipment of FIG. 1, and FIG. Figure 2 is a plan view showing the main parts of the tool magazine, Figure 4 is a perspective view showing the tool holding plate, Figures 5 and 6 are perspective views showing the turning tool, and Figure 7 is the rotary tool adapter plate and FIG. 3 is a perspective view showing a rotary tool held by the adapter plate. 1... Machine tool equipment 2... Machine tool (turning center) 11...
... Tool transfer means (tool shifter) 12 ... Tool storage means (tool magazine) 15 ... Tool transfer means (elevator) 20a ... Tool holding means (tool holding means) Groove) 27... Tool plate 29... Turning tools 29a, 30a... Tool holder 30...
Rotary tool 31...Adapter means (adapter plate) Applicant Yamazaki Iron Works Co., Ltd. Agent Patent attorney Phase 1) Shinji (and one other person)

Claims (2)

[Claims] (1) In machine tool equipment in which tools having tool holders of different sizes are stored in a tool storage means and tools are exchanged between the storage means and the machine tool, tools with the same shape are stored in the tool storage means. A tool plate is detachably provided via a tool holding means formed in the tool plate, and a tool having a tool holder of different size is detachably attached to the tool plate, and when exchanging tools, the tool to be exchanged is attached to the tool plate. A tool storage configured such that the entire plate is removed from the tool holding means and transferred to a predetermined ATC position by a tool transfer means, and a tool exchange operation by a machine tool is performed on the tool supported by the tool plate. method of exchange. (2) A method for storing and exchanging tools according to claim 1, wherein tools having tool holders of different sizes are detachably attached to the tool plate via adapter means.