JPH0650119Y2 - Tool storage / supply device - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is a mold, a drill, or the like used when machining a workpiece with a machine tool such as a press, an NC lathe, or a machining center.
The present invention relates to an apparatus for storing and supplying tools (hereinafter, collectively referred to as "tools") such as cutting tools and NC tools (including "returning" to storage means).

Conventional technology and its problems Conventionally, for example, in press processing, a mold dedicated to each press is stored in a fixed shelf installed around the press,
They were used by manually inserting and removing them as needed.

In addition, a mold shared by a plurality of presses was stored in a hand truck and moved to the press to be used.

However, if the dies are manually stored and put in and taken out in this way, it takes time to put in and take them out, and the worker who is performing the press work cannot do anything other than the press working work. Since the mold cannot be prepared in advance, there is a problem that work efficiency is poor.

Further, there is also a problem in that a human being is likely to make an error in the storage position of the die, a missing die is generated, and the press work thereafter is easily disturbed.

MEANS FOR SOLVING THE PROBLEMS AND ACTION The present invention provides a tool storage rack that is circulated between a tool storage rack and a machine tool that uses tools stored in the tool storage rack. A transfer machine equipped with a telescopic arm that is vertically movable and has a tool-holding arm at its tip so that the telescopic arm can be swung, and a transfer machine that has a storage function that carries out used tools from the machine tool position to the transfer machine. And a supply means having a pusher for transporting the tools, which are clamped by the transfer machine and taken out from the tool storage shelf, to the machine tool from the transfer machine The device solves the above problems.

The operation of transferring the tools before use from the tool storage rack to the machine tool will be described.

First, the tool storage rack is operated to circulate and move desired tools before use to the vicinity of the transfer machine. The transfer machine ascends and descends to the height at which the desired tools are stored, and after the telescopic arm is expanded and contracted and swung, the desired tools are held by the holding arms and taken out from the tool storage rack.

The tools taken out are transferred to the supply means by the turning of the holding arm. The tools transferred to the supply means are supplied to the machine tool and used.

The operation of transferring used tools from the machine tool to the tool storage rack will be described.

The used tools are conveyed from the machine tool to the vicinity of the transfer machine by the transfer machine, and are returned to the tool storage rack by the holding arms of the transfer machine and the expansion / contraction of the telescopic arm.

When used tools are transported to the side of the transfer machine by the transfer machine, when the transfer machine is transferring the tools before use from the tool storage shelf to the supply means, the used tools are transferred. It is made to store on-board and waits.

As a result, the tools before use are transferred prior to the used tools.

These operations can be performed even when the machine tool is operating.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall plan view of the tool storage device used in a press for processing an aluminum rail.

The tool storage device 20 automatically stores the mold, supplies it to the press 24, and returns it to the storage means, and includes a horizontal rotary shelf 21, a transfer machine 22, and a carrier machine 23. Is configured,
It is installed on the back surface 24a of the press 24.

The horizontal rotary shelf 21 stores molds, and has a plurality of storage shelves 30 for storing molds. The storage shelves 30 are integrated into blocks in the vertical direction (vertical direction in FIG. 2) (reference numeral 31 indicates each block). On the upper surface of the storage rack 30 (FIG. 7), a plurality of pins 32 that determine the storage position of the mold D are provided upright at predetermined intervals. When the size of the die D is larger than the distance between the pins 32 (FIG. 8), an escape hole Da for avoiding the pin 32 below the die D is formed on the bottom surface of the die.

A drive mechanism (not shown) drives the horizontal rotary shelf 21 so that all storage shelves 30 can be horizontally circulated at the same time while being blocked.

The transfer machine 22 (first, third, and fourth) is for loading and unloading the molds from the horizontal rotary shelf 21, and can vertically move up and down on the pillar 40 and the pillar 40 which are erected in parallel along the horizontal rotary shelf 21. Equipped lifter 41
And a drive mechanism 42 for moving the lifting body 41 up and down.

The elevating body 41 (Figs. 9, 10, 11) includes an elevating frame 43 that is vertically movable on a support column 40, and a head motor that is horizontally rotatably provided on a lower surface of the elevating frame 43 by a bearing 44.
A rotary head 47 that horizontally rotates with 45 and the chain 46,
Telescopic arm 48 that horizontally expands and contracts with respect to the rotary head 47
It consists of and.

The telescopic arm 48 is composed of a moving frame 49 and a holding arm 50. The moving frame 49 is connected to a frame motor 51 and an endless chain 53 that circulates by a pair of sprockets 52, 52, and a traveling roller sandwiched on a horizontal rail 54 attached to a frame 57 of a rotary head 47.
Has 55. The holding arm 50 is a moving frame 49.
And a tilting arm 50b which can take a vertically downward position parallel to the fixed arm 50a and a horizontal lateral position by the air cylinder 56.

The drive mechanism 42 (FIG. 4) is a lifting chain in which the lifting motor 60 and the lifting frame 43 are connected in the middle.
61 and a plurality of lifting sprockets 62, 62 engaged with the lifting chain 61.

Next, the operation of the transfer machine 22 will be described.

When the lifting motor 60 is driven, the lifting body 41 moves up and down.
The pillar 40 is raised and lowered by 61.

When the head motor 45 is driven, the rotary head 47
It is possible to rotate horizontally by 46 and orient the holding arm 50 in a desired direction.

When the frame motor 51 is driven, a pair of sprockets 5
The moving frame 49 is made to extend and contract by the 2, 52 and the endless chain 53 so that the moving frame 49 travels on the rail 54, and the holding arm 50 can approach and separate from a desired position.

When the air cylinder 56 is driven, the tilting arm 50b tilts, and the fixed arm 50a allows the mold D to be gripped or released.

The above operation is performed by the control of the servo motor.

The conveyor 23 (FIGS. 1 and 4) conveys a mold used by the press 24 from the press 24 to the transfer machine 22, and includes an upper conveyor 70, a lower conveyor 71, It comprises a swivel conveyor 72 located at the right end of the transfer conveyor 70.

The transfer conveyor 70 is configured to move from the press 24 to the lifter 41 of the transfer machine 22.
Used to convey used dies to the bottom of the machine, with a plurality of rollers 75 arranged in parallel, with five driving parts (not shown), the rollers 75 can be divided into five sections, and tact can be fed. , Has a buffer function. Therefore, although the number of conveyors 70 is one, the operation is similar to that of five short conveyors connected in series.

In the middle of the transfer conveyor 70, a pusher pusher 76 that pushes the side surface of the mold D and moves it to one side of the transfer conveyor 70, and a barcode reader on the opposite side downstream from the pusher pusher 76.
77 are provided respectively.

Since the width of the mold D is different for each mold, both sides of the end (the left end side in FIG. 1) of the transfer conveyor 70 are pushed to the both sides of the mold D so that the center of the mold D of the transfer machine 22. A pair of centering pushers 78, 78 are provided to match the centers.

The carry-out conveyor 71 is used when carrying out the mold from the tool storage device 20 to the outside, and includes a plurality of rollers (not shown) in parallel.

The swivel conveyor 72 transfers the mold between the press 24 and the transfer conveyor 70, and has a plurality of rollers 80 arranged in parallel and a hydraulic pusher 81 for swiveling. The pusher 81 horizontally rotates 90 degrees and selectively connects the press 24 and the transfer conveyor 70.

The press 24 (FIGS. 1, 3, 5, and 6) includes a press body 90, a vertical rotary shelf 91, and a mold alignment mechanism 92.

The press body 90 can install up to 18 molds D at a time, and the front side 24b corresponds to each mold D and the indicator lamp 9 is provided.
There are 18 3 (Fig. 5). The operator processes the material by putting the material in and out of the die D corresponding to the display lamp 93 which is turned on in the order of the process according to a command from the control device (not shown).

The vertical rotary shelf 91 uses the loaded molds on the back side 24a of the press.
From the front side 24b to the front side 24b, the used mold is transferred from the front side 24b to the back side 24a.A pair of rotating disc-shaped frames 94,94 and a supporting shaft are passed between the frames 94,94.
A plurality of shelves 96 supported horizontally by 95, 95 and a planetary gear which is provided on one side of the frames 94, 94 and keeps the upper surface 96a of the shelves 96 horizontally even when the frames 94, 94 rotate. A mechanism 97 and a delivery mechanism 99 that is installed in the rotation space 98 of the shelf 96 and mounts a mold loading plate 112, which will be described later, on the shelf 96. Eight shelves 96 are provided at equal intervals.
The delivery mechanism 99 includes a mold loading / unloading machine 100 and a mold installing machine 1
The mold loading / unloading machine 100 comprises a cylinder 102,
A bar 103 provided at the tip of the cylinder 102, and a pair of hooks 104 provided at both ends of the bar 103 to open and close each other,
It is composed of 104. The mold installation machine 101 is a mold loading / unloading machine.
It has the same structure as 100, and is composed of a cylinder 105, a bar 106, and a pair of hooks 107, 107.

In order to avoid the tips of the hooks 104, 104, 107, 107 from hitting the shelf 96 during rotation of the vertical rotary shelf 91, the mold installation mechanism shown in FIG.
Like the position of 101, the bars 103, 106 are drawn into the rotation space 98 by the cylinders 102, 105.

The mold alignment mechanism (Fig. 1, 6) 92 aligns the molds carried into the press and sequentially carries out the used molds. The carry-out pusher 110 and the mold conveyance guide are provided. A channel-shaped loading guide 111, a plurality of mold loading plates 112, a loading pusher 113, a loading guide 114, and a transport pusher 117 that moves on a horizontal shaft (FIG. 6) 115 by pulling a chain 116. It consists of and.

The mold loading plate 112 is used for aligning and stacking the molds, and has a channel shape as a whole, and the hooks are provided on both sides.
L-shaped engaged parts 118, 118, 1 with which 104, 104, 107, 107 are engaged
There are 19,119.

Next, the operation of the press 24 will be described.

When the mold D is carried in and loaded on the carry-in guide 111, the carry-in pusher 110 pushes the side surface of the mold D and the mold loading plate 112.
Then, the conveyance pusher 117 is changed from the horizontal state to the vertical state, and is pushed to an appropriate position on the die stacking plate 112 and is conveyed. This operation is performed every time the mold D is loaded. A maximum of 18 dies can be loaded on the die loading plate 112. When a predetermined number of molds D are loaded on a predetermined position of the mold loading plate 112, the cylinder 102 is operated and the bar 103
To approach the mold loading plate 112. And hook 1
Rotate 04 and 104 so that the tip ends to close the engaged portion 11
The mold loading plate 112 is loaded on the shelf 96 by engaging with 8, 118 and the returning operation of the cylinder 102. After that, the hooks 104, 104 are rotated so that their tips are opened, and the engagement with the engaged parts 118, 118 is released.

Mold loading plate 112 that can be rotated and transported
Is carried from the rear surface side 24a of the press 24 to the front surface side 24b by the shelf 96 which is circularly moved while maintaining the horizontal state by the rotation of the frames 94, 94 and the operation of the planetary gear mechanism 97 (that is,
The shelf 96 revolves while revolving. ) Then, the hooks 107, 107 of the bar 106 which are in the retracted state are rotated in advance, and the tips thereof are engaged with the engaged members 119, 119. Hook 107,1
When the bar 106 is projected by the cylinder 105 in the engaged state of 07, the mold loading plate 112 is pushed out from the shelf 96 onto the press body 90. Then, the hooks 107, 107 are rotated so that the tips thereof are opened to disengage from the engaged parts 119, 119, and the bar 106
The mold D is put into use by retracting.

To carry out the used mold D, press the bar 106 on the press 2
4 is moved toward the front side 24b of the mold 4 to rotate the hooks 107, 107, and the tip of the hook 107, 107 is engaged with the engaged portion 11 of the mold loading plate 112.
Engage 9,119. Then, the bar 106 is retracted to move the mold loading plate 112 from the press body 90 onto the shelf 96.
And move it in. After that, the hooks 107, 107 are opened to disengage the engaged parts 119, 119, the bar 106 is retracted, and the mold loading plate 112 is brought into a state capable of being rotationally conveyed. The mold loading plate 112 is loaded on the shelf 96 and is rotationally conveyed while being maintained in a horizontal state.

When the mold loading plate 112 is carried to the back side 24a of the press 24, the bar 103 which is in the retracted state is projected in advance, and the tips of the hooks 107 and 107 are engaged with the engaged portions 118 and 118, so that the mold loading plate is Push 112 from shelf 96 onto press body 90 and lower. After that, the engagement is released and the bar 103 is retracted.

When the mold loading plate 112 is unloaded, the transport pusher 117
The last die D of the plurality of dies D that has been arranged is pushed to move the leading die D to the front surface of the carry-out pusher 113. Then, the carry-out pusher 113 is the first die D.
Is pushed out to the carry-out guide 114. After that, the transport pusher 117
Then, the mold D on the mold stacking plate 112 is sequentially carried out by the repeated operation of the carry-out pusher 113.

Next, the operation of the tool storage device 20 will be described.

First, the block 31 of the storage shelf 30 in which the mold D to be used is stored is circularly moved to the vicinity of the transfer machine 22.

Around this time, the elevating body 41 of the transfer machine 22 is raised or lowered to the height of the target storage shelf 30 by the drive mechanism 42,
The rotary head 47 rotates so that the retractable arm 48 in the retracted state faces the mold D.

After the horizontal rotary shelf 21 and rotary head 47 stop, tilting arm
In order to avoid the collision of the mold 50b with the mold D [FIG. 12 (a)], the telescopic arm 48 is extended to enter the horizontal rotary shelf 21, and the clamping arm 50 is moved to the mold. It is moved right above D [Fig. 12 (b)]. When the fixed arm 50a approaches the mold D, the extension of the telescopic arm 48 is stopped,
The tilting arm 50b is tilted downward, and the mold D is sandwiched between the fixed arm 50a and the tilting arm 50b [FIG. 12 (b)]. After that, the lifting body 41 moves up slightly and the storage shelf 30
Die D is lifted from [Fig. 12 (c)], telescopic arm 48
, And the rotary head 47 is rotated horizontally counterclockwise (counterclockwise in FIG. 1) to carry out the mold D from the horizontal rotary shelf 21.

When the telescopic arm 48 becomes parallel to the carrier 23, the rotation of the rotary head 47 is temporarily stopped, and the horizontal rotary shelf 21 and the press 24 are pressed.
In a state where it is prevented from colliding with the tongue, the elevating body 41 is raised or lowered to the height position of the carry-in guide 111 of the mold alignment mechanism 92. Then, the rotary head 47 is further rotated counterclockwise to extend the telescopic arm 48 right above the carry-in guide 111, and when the mold D moves to just above the carry-in guide 111, the extension is stopped and the elevating body 41 is lowered. Then, the mold D is lowered onto the carry-in guide 111, the tilting arm 50b is tilted, and the mold D is released.

The mold D that has been lowered into the carry-in guide 111 is the carry-in pusher 110.
Is pushed by the mold loading plate 112, and further pushed by the transport pusher 117 and fed rightward in FIG.

The telescopic arm 48 carrying the mold D retracts, the rotary head 47 rotates horizontally rightward, and the above-described operation is repeated to sequentially carry the mold D from the horizontal rotary shelf 21 to the carry-in guide 111.

When a predetermined number of dies D are placed on the die loading plate 112, the vertical rotary shelf 91 is actuated to operate the front side 24b of the press 24.
And the die D is set.

The operator cannot work while the vertical rotary shelf 91 is operating. Therefore, the work waiting time of the worker for exchanging the mold D is only the time during which the vertical rotary rack 91 is rotated.

The used mold D is a vertical rotary shelf 91 and a mold alignment mechanism 92.
Is sent to the carry-out guide 114, and the carry-out guide 114
Is sent to the swiveling conveyor 72 which is waiting.

The swivel conveyor 72 is a pusher for swiveling when the mold D is placed.
It is horizontally rotated by 81 and connected to the conveyor 70 for transportation.
Then, by operating the roller 80 of the swivel conveyor 72, the mold D
Are transferred to the transfer conveyor 70.

The mold D conveyed on the conveyor 70 is moved to one side by the one-way pusher 76 on the way, and the bar code (not shown) attached to the mold D is read by the bar code reader 77. As a result, the position to be stored in the horizontal rotary shelf 21 is determined. The mold D is finally pushed by the centering pushers 78, 78, the center thereof is aligned with the center of the transfer machine 22, and stopped under the telescopic arm 48 of the transfer machine 22 waiting.

Then, the operation of the telescopic arm 48 and the sandwiching arm 50, and the lifting body
The mold D is stored in a predetermined storage rack 30 of the horizontal rotary rack 21 that is waiting in advance by raising and lowering 41 and rotating the rotary head 47 horizontally to the right.

The mold D newly supplied from the outside is supplied from the swivel conveyor 72, and is stored in the horizontal rotary shelf 21 by the transfer by the transfer conveyor 70 and the transfer by the transfer machine 22. Further, when the mold D is carried out to the outside, the transfer machine 22 is used to carry out the conveyor from the horizontal rotary shelf 21.
It is carried to 71 and carried out from carry-out conveyor 71.

As described above, according to the tool storage device of the present invention, the mold D can be automatically stored and transported, so that it is necessary for the next processing step even when the worker is working. The mold D can be prepared in advance near the press in the order of the processing steps, the replacement time of the mold D is shortened, and the work efficiency is improved.

Moreover, since it is completely automated, the mold D can be stored and transported reliably regardless of the number of molds D.
Missing mold D will not occur.

Further, since the press work can be performed by inserting the aluminum rails in the order in which the display lamp 93 is turned on, it is not necessary to be skilled in the work, and moreover, it is possible to handle a variety of small-scale production.

It is needless to say that the present invention is not limited to the above-mentioned embodiments and includes the same technical idea. For example, in the above-mentioned embodiments, the mold is a horizontal rotary shelf 21.
Although the storage shelves are stored in, the storage shelves may be vertical rotation shelves that rotate in the vertical direction.

Further, although the tool storage device 20 is used for the press 24, it can also be used for an NC lathe, a machining center, etc., and brings similar advantages.

Effects of the Invention As described above, according to the tool storage device of the present invention, all the tools can be automatically stored and transported, which is necessary for the next machining process even when the machine tool is operating. You can prepare various tools in advance near the processing machine,
Tool exchange time is shortened and work efficiency is improved.

Further, by being fully automated, the storage of tools is ensured, and a missing mold is not generated.

Further, the storage / supply device of the present invention is provided with a tool transfer machine, a transfer machine and a supply means between the tool storage rack that cyclically moves and the machine tool that uses the tools. As the telescopic arm of the loading machine moves up and down, the tools can be reliably put in and taken out of the storage rack, and the tools storage rack can be circulated and stopped at the predetermined position of the transfer machine. The tools can be quickly taken in and out.

In addition, since the storage / supply device of the present invention has a carrier having a storage function, the carrier can be used while the transfer machine is removing the tools before use from the tool storage rack. Even if used tools may be sent, the used tools are stored on the carrier, and after the used tools are transferred to the machine tool, the tool storage rack It is supposed to be transferred to. For this reason, when there is a request for tools before use, the used tools that are being returned and transferred / transported should be stopped halfway, and the tools before use should be given priority to the machine tool. You can

[Brief description of drawings]

1 to 12 show an embodiment of the present invention, in which FIG. 1 is an overall plan view of a tool storage device, FIG. 2 is a front view of a horizontal rotary shelf, and FIG. Right side view, FIG. 4 is a view taken along arrow 4-4 in FIG. 1, FIG. 5 is a front view of the press seen from the front (worker side), and FIG. 6 is 6-6 in FIG. 7 and 8 are plan views of the storage rack, FIG. 9 is a vertical sectional view of the lifting body, and FIG. 9 is a sectional view taken along the line 9-9 in FIG. 10, and FIG. 9 is a left side view of FIG. 9, FIG. 11 is a sectional view taken along the line 11-11 in FIG. 10, and FIGS. 12 (a), (b), and (c) are operation explanatory views of the transfer machine. D ... Mold (tools) 20 ... Tool storage device 21 ... Horizontal rotary shelf (tool storage shelf) 22 ... Transfer machine 23 ... Conveyor 24 ... Press (machine tool) 48 ... Expandable arm 50 ... Clamping arm 92 … Mold aligning mechanism (supply means) 110… Push-in (Pusher)

Claims (1)

[Scope of utility model registration request] 1. A tool storage rack that is circulated and moved between a tool storage rack and a machine tool that uses the tools stored in the tool storage rack, moves up and down along the tool storage rack, and has tools at the tip. A transfer machine with a telescopic arm provided with a holding arm attached so as to be rotatable, a transfer machine with a storage function for carrying out used tools from the machine tool position to the transfer machine, and a holding machine between the transfer machines A storage / supply device for tools, which is provided with a supply means having a pusher for transferring the tools taken out from the tool storage rack to the machine tool from the transfer machine.