JPH04105801A - Automatic processing device - Google Patents

Abstract

PURPOSE:To optionally change over a work stage according to a work, and to improve the flexibility of the schedule of an automatic processing, by equipping a composite work lathe, a transport device which transports a member to the composite work lathe and a control unit which controls the whole devices. CONSTITUTION:A control unit 95 has a central processing unit 950 and operation panel 952, and a composite work lathe is equipped with an edge tip detecting device of an installing tool and the machine inside measuring device 954 of a work. The control unit 90 is input by an operation panel 902 and a teaching panel 904 to a CPU 900, a servo 909 actuating the transfer robot and arm of a transfer device and a servo 908 operating the movements of a pallet changer, traveling truck and fork are controlled by the CPU 900. The stocker position is controlled via a unit 914, a machine outside measuring device measures the work completion works dimension but is controlled via a unit 914, the reading and writing of the memory elements of each tool, jaw, hand and the memory element of each pallet are executed by read, write head controllors 916, 908 and read, write heads 917, 919.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic processing device equipped with a multi-tasking machine tool.

[Conventional technology]

Flexible manufacturing systems (FMS), which combine multi-tasking machine tools and automatic workpiece transport devices to enable long-term automatic machining, are becoming popular.

Among multi-tasking machine tools, a multi-tasking lathe is equipped with two opposing spindles and two turrets that work with each spindle.
Workpieces can be transferred between two spindles, two processes can be completed in one machine, and productivity is high.

The applicant has already proposed a system that combines this type of multi-tasking lathe and an automatic workpiece transfer device to enable long-term unmanned operation.

[Problem to be solved by the invention]

In conventional automatic machining equipment, when machining a workpiece, a machining schedule is programmed such that a first machining process using a first spindle is followed by a second machining process using a second spindle.

Therefore, in the present invention, the schedule of the machining process can be arbitrarily selected to achieve more flexible automatic machining.

In addition, multi-tasking lathes that constitute conventional automatic processing equipment are
The range of workpieces that can be processed was limited by the number of tools installed on the turret of the tool post.

Therefore, the proposed automatic processing apparatus is equipped with a stocker for tools and jaws, and has the function of increasing the number of tools and jaws used to enable unmanned processing of a wider variety of workpieces for a longer period of time.

A transfer robot that transports the stocker and the tools and jaws of the stocker to the multi-tasking lathe is such that the tools and jaws of the first stocker are transferred to the first spindle and tool post, and the tools and jaws of the second stocker are transferred to the second It is configured to be conveyed to the main spindle and the turret.

Therefore, depending on the type of work, the number of tools and jaws stored in the first stocker and the second stocker may be unbalanced and unevenly distributed.

In such a case, the types of workpieces to be processed are limited, and the time for unmanned operation is also limited.

Therefore, the present invention provides an apparatus that makes effective use of stockers and improves the efficiency of automatic processing.

[Means to solve the problem]

The automatic processing device of the present invention includes, as basic means, a compound machining lathe, a conveying device for conveying a member to the compound machining lathe,
The compound machining lathe includes a control device that controls the entire device, and includes a first main spindle and a second main spindle that are arranged to face each other, and a first tool rest that has a turret that cooperates with the first main spindle. and a second tool rest having a turret that cooperates with the second main shaft, and the conveyance device includes a guide rail disposed between the compound machining lathe and a stocker device that accommodates the component;
It is equipped with a transfer robot that runs on a guide rail, an arm that extends and contracts in the vertical direction attached to the transfer robot, and a hand that is replaceably attached to the tip of the arm, and the control device is executed on the first spindle side. The apparatus is provided with means for switching a machining program consisting of a first machining process to be executed on the second spindle side and a second machining process to be executed on the second spindle side to an arbitrary order.

Furthermore, the stocker device includes a first stocker that accommodates a jaw and a tool to be supplied to the first spindle and the first tool rest;
a second stocker for accommodating jaws and tools to be supplied to the second spindle and the second tool rest;
The control device includes means for switching the machining process to also make the most efficient use of the first stocker and the second stocker, based on the jaw and tool conditions required for the different types of workpieces to be machined.

[Effect]

Since the machining process can be switched arbitrarily depending on the workpiece, the flexibility of the automatic machining schedule is improved.

In addition, the slider is also effectively utilized, and unmanned machining can be carried out for a longer period of time.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a perspective view showing the entire automatic processing apparatus for implementing the present invention, FIG. 2 is a front view, FIG. 3 is a plan view, and FIG. 4 is a left side view.

The automatic machining device, designated as a whole by reference numeral 1, includes a multi-tasking machine tool. Various types of machine tools can be used as the compound machining machine tool, but in this example, a compound machining lathe 10 equipped with two main spindles and two turrets is used. There is.

FIG. 5 shows an outline of a compound machining lathe 0, which has a first main spindle 110 and a second main spindle 130 that are arranged to face each other. The first main shaft 110 and the second main shaft 130 are main shafts having the same ability and move in the directions indicated by axes 2, 22, respectively.

On the other hand, two turrets with the same capacity 120°140
are arranged facing each other. The first tool rest 120 has an axis X1
It has a turret 122 that moves in the direction and rotates around an axis T□, and a plurality of tools 160 are mounted on the turret 122.

Similarly, the second tool rest 140 has a turret 142 that moves in the axis X2 direction and rotates around the axis T2, and a plurality of tools 160 are mounted on the turret 142.

The first main shaft 110 has a chuck 112 and a jaw 1
70 grips the workpiece 150 and performs necessary processing on the workpiece 150 using the tool 160 of the first tool rest 1.20. The amount of movement of the axis Z of the first spindle 110 and the amount of rotation around the axis C1, and the amount of movement of the tool rest 120 about the axis X□ and the index around the axis T1 are controlled by the NC device.

The multi-tasking lathe 10 is equipped with a means (not shown) for detecting the position of the cutting edge of the tool 160, and by measuring the position of the cutting edge and feeding it back to the NC device, the dimensions of the workpiece can be indirectly calculated and machining accuracy can be improved. secure.

When the first process is completed by the first spindle 110,
The chuck 132 of the second main shaft 130 is attached to the first main shaft 110.
The workpiece 150 is received from the machine and is processed in the second step in collaboration with the second tool post 140 controlled by the NC device to complete the workpiece 150.

As described above, the compound machining lathe 10 is equipped with two main spindles and two turrets, and has the ability to automatically machine workpieces with complex shapes.

Note that a configuration may be adopted in which the tool rest is moved along the axis Z□+Z2 instead of the main shaft.

A chip conveyor 190 is disposed on the rear side of the composite machining lathe 0 to collect chips generated by cutting, and are collected by a chip packet 195.

The conveying device, which is generally designated by the reference numeral 20, includes a guide rail 200 disposed above the compound machining lathe]-〇. The guide rail 200 is connected to the shaft 2□, which is the moving direction of the main shaft of the lathe.
, z2 along the axis B parallel to the guide rail 2
A transfer robot 220 is mounted on the robot 00 so as to be freely movable.

The transfer robot 220 includes an arm 230 that moves along an axis A in the vertical direction. A work hand 280 is attached to the tip of the arm 230, and in a manner described later, this work hand 280 can be exchanged with another hand to convey various objects.

Adjacent to the compound machining lathe 10, a stocker device 30 is disposed below the guide rail 200 for storing members and supplying them to the compound machining lathe 0 when necessary.

FIG. 6 is a sectional view of the main part of the stocker device 30, and FIG. 7 is a side view of the main part.

The stocker device 3o has a pace 300 placed on the floor, and the base 300 has two sets of two guide surfaces. The first guide surfaces 310 and 312 are the guide rails 20
It is arranged along an axis x3 perpendicular to the axis B of 0.

The second guide surface 320° 322 is parallel to the axis
will be placed along the

On the first guide surfaces 310, 312, a stocker, generally designated by the reference numeral 40, is placed so as to be movable along the axis Xl.

The stocker 40 has a first side wall 410 and a second side wall 420.
and a floor 430 connecting two side walls, and includes a box-shaped stocker body 400 with a substantially square cross section and an open top. On the lower surface of the floor 430, there are rollers 4 that roll on a guide surface.
02 is provided.

The upper edge of the first sidewall 410 extends outwardly and horizontally to form a first flange 412 . The upper edge of the second side wall 4.20 also extends horizontally outwardly and forms a second flange 422.
form.

The stocker body 400 has an elongated shape extending along the axis X3, and the interior thereof is defined into a plurality of chambers 445 by a partition plate 44.0.

The chamber 445 houses various hands that are replaceably attached to the tip of the arm 230 of the transfer robot 220.

In this embodiment, a tool hand 240 for handling tools to be supplied to the turret of the multitasking lathe 10 and a main spindle 1 are used.
Three types of hands are prepared: a jaw hand 260 for handling the jaws to be supplied to the chucks 112 and 132 of Nos. 10 and 13Q, and a work hand 280 for handling the workpiece.

The first flange 412 and the second flange 422 are connected to the axis
The tool 160 is inserted into the cavity, which has holes formed at regular intervals along the length 3. In this embodiment, a case is shown where a total of 20 tools 160 are accommodated, 10 on each flange, but the number of accommodated tools may be increased or decreased as necessary.

Jaw holding members are arranged at equal intervals along the axis x3 inside the upper parts of the first side wall 410 and the second side wall 420,
A jaw 170 is inserted into each holding member. In this example,
Although a case is shown in which a total of 18 jaws 170 are held, the number of jaws 170 may be increased or decreased as necessary.

Stocker body 400 is indexed along axis x3 and includes means for positioning (eg servo positioning).

Each tool, jaw, and hand is provided with a memory element including a tool C, etc., to record necessary information.

Tool-related data includes tool number, name, rotation direction, shape, lifespan, number of pieces processed, life time, number of pieces used,
The information includes usage time, tool set value, wear correction amount, wear amount maximum set value, nose R1 depth of cut, tool width, tool length, manufacturing date, number of times of writing, etc.

Data regarding the jaws include jaw number, jaw position, external jaw/internal jaw, dimensions of each part of the jaw, chuck barrier presence/absence, gripping diameter, jaw forming/non-forming, raw jaw forming/not forming, raw jaw forming program number, raw jaw Includes usage time, natural nail lifespan, date of manufacture, number of entries, etc.

The tool 160 includes a memory element 160a, and the tool is written on the base 300 side of the stocker device.
A read/write head 330 for reading or writing information is provided. The jaw 170 consists of a base jaw that engages with the chuck and a soft jaw that is attached to the base jaw, and includes a similar memory element on the back of the base jaw. Then, place jaw 1 on the base 300 side.
A read/write I/head 332 is provided facing the 70 memory elements 170a. This lead, light head 33
2 is a rotating type to avoid interference with the tool shank 160S when the stocker main body 400 moves, and the memory element 170a of the jaw 170 is used only during reading and writing.
The structure should be close to .

The tool 160 stored in the first flange 412 and the first
The jaw 170 stored in the side wall 410 of the machine is, in principle, supplied to the first tool rest 120 and the first spindle 110.

The tool 160 stored in the second flange 422 and the second
The jaw 170 stored in the side wall 420 of the machine is supplied to the second tool rest 140 and the second main shaft 130.

FIG. 6 shows that the tool hand 240 is attached to the first flange 412.
160 of the second flange 422 and the tool 16 of the second flange 422
The state in which the jaw hand 260 grips the jaw 170 is shown in the upper center part.

Hands are stored in the stocker main body 400, and on the base 3o○ below the floor 430 of the main body 400, a lead and a write head 340 for handling the hand are connected to the actuator 34.
2, it is provided so as to be freely movable. FIG. 6 shows a state in which the tool hand 240 is housed in the stocker main body 400.
Attach a and record the necessary information. The jaw hand 260 and work hand 280 also include similar memory elements.

Second guide surface 320 of base 300 of stocker device 30
, 322 is equipped with a traveling trolley, generally designated by the reference numeral 60. The traveling truck 60 has a frame 600, which is supported on the guide surfaces 320, 322 via rollers 602, and is driven by an axis X4 by a drive device (not shown).
is moved along. This traveling trolley 60 has a fork 70
Together, they form a pallet changer and handle pallets on which workpieces are placed in a manner that will be described later.

The stocker 40 is provided with a clutch means using a connecting pin 4.50 that can be freely engaged and detached, and the traveling truck 60 and the stocker 4 can be connected to each other when necessary.
Connect o. The stocker 40 is indexed to a predetermined position along the axis X3 by the driving force of the traveling cart 60, and supplies the hand, tool, and jaw to the transfer robot 220.

As described above, this automatic processing device has a replaceable hand attached to the arm of the transfer robot, and supplies the necessary tools and jaws to the multi-tasking lathe, thereby automatically achieving setup for many types of workpieces. can do.

Next, an external measuring device 50 is connected to one end of the stocker 40. This external measurement device 50 is equipped with a block 502 for positioning the workpiece on the plays 1 to 500, a micrometer 510, etc., and automatically measures the dimensions of the processed workpiece and transmits the information. It is sent to the control device 90.

]6 The traveling trolley 60 guided by the base 300 is equipped with a fork device 70. The fork device 70 is supported movably with respect to the traveling truck 60.

A motor 610 disposed on the traveling truck 60 rotates a drive screw 720 of the fork device 70 via a transmission means, thereby raising and lowering the entire fork device 70.

The fork device 70 has a spar 705 and two parallel arms 710 protruding outward from both ends of the spar 705, and grips the pallet 80 on the inside of the two arms 710.

The center inner part of the girder 705 of the fork device 70 has a lead,
A write head 917 is provided, and a memory element 815 is provided at a position facing the pallet +-80.

The pallet 80 is a rectangular plate-shaped member that accommodates works 150, and has means for accommodating works 150 of the same type and different types at regular intervals.

A plurality of pallets 8o are prepared by stacking them vertically, and a maximum of about 10 pallets are prepared. Each pallet 80 is provided with workpiece holding means consisting of an adapter in which a V-groove is formed inside a quadrilateral frame 800. and,
Pins 810 are installed at the four corners of the frame 800. This pin 810 is selected in accordance with the height dimension of the workpiece 150, and supports the pallet 80 stacked above. Therefore, the vertical distance between the stacked pallets is determined by the length of the pin 810.

The control device and control method of this automatic processing device will be explained.

FIG. 8 is a block diagram showing an overview of the control device, including the control device 90 of the automatic processing device and the NC control device 90 of the multi-tasking lathe.
A control device 95 is provided.

The NC control device 95 includes a central processing device 950 and an operation panel 9.
52, and inputs and outputs information necessary for processing. The compound machining lathe 10 is equipped with a cutting edge position detection device for detecting the cutting edge positions of two tool rests 120 and 140, and an in-machine measuring device 954 for the workpiece, and is equipped with a workpiece measuring device 954, which is installed on two tool rests 120 and 140. Execute the exchange. The processed workpiece is opened with a touch sensor, and this information is sent to the central processing unit 9.
50, and modify the NC information as necessary.

A control device 90 of the automatic processing device is in charge of controlling devices other than the compound processing lathe 10. In this embodiment, a control device 9o for a compound machining lathe and a control device 9o for other devices are used.
5 is shown as a separate unit, but it is also possible to combine the control units to construct an integrated control unit.

The control device 90 includes a central processing unit 900, and an operation panel 902. connected to the central processing unit. teaching panel 90
4, information regarding the operation of the device to be controlled is input.

The transfer device 20 includes a servo axis B that operates a transfer robot 220 that moves on a guide rail 200, and an arm 230.
The servo 906 has two axes, a servo axis A, which operates the vertical movement of the servo 906 , and these servos 906 are controlled by commands from the central processing unit 900 . The pallet changer consisting of a traveling carriage 60 and a fork 70 includes a servo 908 that operates the movement of the traveling carriage 60 and the vertical movement of the fork 70, and is controlled by commands from a central processing unit 900.

The position of the stocker 40 that accommodates the hands, jaws, and tools is controlled via the unit 910.

In addition to the stocker 40, this automatic processing apparatus can increase the capacity of tools and jaws by adding a chain type stocker (not shown) or the like. When equipped with a chain magazine, it is controlled via unit 912.

The external measurement device 50 integrally connected to the stocker 40 is
The dimensions of the workpiece that has been processed are measured using the measuring device 5.
0 operation and information such as measurement results are controlled via unit 914.

Each pallet 8o includes a memory element, and reading and writing of information to and from the memory element is performed by a read/write head controller 916 and a read/write head 917 coupled thereto.

Similarly, the reading and writing of information in the memory element of each tool, the memory element of each jaw, and the memory element of each hand are performed by reading,
This is executed by a write head controller 918 and a read/write head 919 connected thereto.

The setup work performed by the operator before starting automatic operation using automatic processing equipment will be explained.

First, at the setup station, each pallet 1-80
The material work 150 is stored in the pallet 80, and data is written into the memory element of each pallet 80 using a portable read/write head. The data to be written includes fixed data such as pallet number and processing date, and variable data such as workpiece number, workpiece interval, workpiece reference position, number of pieces on the pallet,
There are height dimensions of the pins 810 planted in the pallet, etc.

The pallets 8o, on which the above setup has been completed, are stacked in a maximum of about 10 layers and are transported to the loading station 820 of the automatic processing device.

Next, the operator places the plurality of hands 24 in the stocker 40.
0,260,280, tool 160, and jaw 170 are set. At this time, data is written into each memory element using a portable read/write head. The data of the equipment stored in this stocker 4o is read at the time of system check.

It is read by the light head and sent to the control device 90.

NC data etc. are also prepared for the control device 95 of the multi-tasking lathe 10.

FIG. 9 is a flow chart showing the operation of this automatic processing device.

The automatic operation started in step 1000 reads data from the memory element attached to the pallet 80 in step 1100. With respect to the pallets 80 placed on the loading station 820, the fork device 70 of the pallet changer descends from the top and reads data in each memory element of the stacked pallets 80.

FIG. 10 illustrates data items to be entered in the storage elements of pallet 80.

When this reading is completed, a data table of machining schedule based on pallet numbers can be created.

In terms of processing order, the pallets stacked on the topmost tier are stacked first, followed by the pallets on the lower tier.

In step 1200, an automatic training system is performed. Based on the machining schedule based on the pallet number, compare the data of NC data, tools, jaws, hands, etc. with those set in the stocker and multi-tasking lathe to check for any abnormalities in the system. .

When an abnormality is discovered, a warning is issued to the operator in step 1210.

Proceed to step 1300 and check the readiness status.

If the preparation for the work to be machined has not been completed, the process advances to step 1310.

In step 1310, the connecting pin 450 provided on the stocker 40 is operated to connect the traveling carriage 60 and the stocker 40. Thereby, the stocker 40 is driven together with the traveling carriage 60, and is in a state where it can be moved to a required position.

In step 1320, a hunt exchange program is executed. Among the three types of hands housed in the switch 40, for example, the tool hand 240 is
It is attached to the arm 230 of 0.

At step 1330, a tool exchange program is executed. The tool hand 240 attaches the tool 160 housed in the first flange 412 of the stocker 40 to the turret 122 of the tool rest 120, and
22 tools 160 to the turret 1 of the second tool rest 140.
Attach to 42.

Information in the storage element is updated for tools that are replaced and returned to the stocker.

At step 1340, a jaw exchange program is executed. The jaw hand 260 is attached to the arm 230,
The jaw hand has a first main shaft that moves the jaw 170 housed in the first side wall 410 of the stocker 40. 10 chucks 1
12 and housed in the second side wall 420
70 is attached to the chuck 132 of the second main shaft 130.

Information in the memory element is updated for jaws that are replaced and returned to the stocker.

In step 1350, data regarding the machining program, replaced tools, and jaws are transferred to the control device 95 of the multitasking lathe. The data to be transferred includes tool file data, a data map of the tool's memory element such as jaw dimension data, and the jaw's memory element. A work hand 280 is attached to the arm 230. After that, stocker 4
Return 0 to its original position. In the original position, the external measuring device 50
is positioned at a predetermined position. Disengage the traveling truck 60 and the stocker 40.

The preparation program is thus completed and the process proceeds to step 1400.

In step 1400, the traveling carriage 60 and the fork 70 work together to hold the uppermost pallet 8o in a predetermined position.

In step 1500, each tool 1 is
The position of the cutting edge of 60 is measured, and the dimensions of the workpiece are indirectly measured.

In step 1600, based on the result of the detection of the position of the cutting edge in step 1500, it is determined whether the tool needs to be replaced due to wear of the cutting edge or the like. If it is determined that tool replacement is necessary, the process proceeds to step 1610, and the work hand attached to arm 230 of transfer robot 220 is replaced with a tool hand. In step 1620, the tool exchange program is executed, and in step 1630, the tool is exchanged again to the work hand, and the process proceeds to step 1700.

In step 1700, the transfer robot 220 grips the workpiece 150 with the workhand 280 and supplies it to the chuck 112 of the first spindle 110 in the multi-tasking lathe. Usually, the first processing step for the workpiece 150 is
The second machining process is performed with the first spindle 110, and the second
, but the order can also be reversed.

In step 1800, a predetermined machining program is executed by the multi-tasking lathe]O. In step 1850, the workpiece is measured on-machine. In-machine measurement uses touch sensors to measure the dimensions of each part of the workpiece.

Send the measurement results to step 2010 and perform NC as necessary.
Correct the program. Workpiece that has been processed 3. ,5
0 is taken out by the transfer robot 220 in step 1900 and sent to the external measuring device 50.

In step 2000, the external measurement device 50 directly measures the dimensions of the workpiece 150, and in step 2010, the machining quality is determined and the NG data is corrected depending on the magnitude of the error.

In step 2100, tool life is checked. Each tool 160 has a predetermined number of uses and a predetermined usage time set as a lifespan. Therefore, the life of the tool is checked with reference to this set value, and if the life has been reached, the process proceeds to step 2110, where the tool is replaced with a tool hand and the tool exchange program is executed.

In step 2120, the control device 9 of the compound machining lathe 10
The tool data is transferred from the NC of No. 5 to the control device 9o, and in step 2130, the read/write head 91
9, tool data is written into the memory element of the used tool.

Therefore, the data of the tool in use is recorded only in the tool file in the NC, and the data in the storage element of the tool is not updated.

In step 2200, it is determined whether all the machining of the number of workpieces set up on the pallet 80 has been completed. If it has been completed, return to step 1500,
Load the workpiece and repeat the above steps.

When the workpiece for one pallet has been processed, the process proceeds to step 2300, where the traveling cart 6o and the fork 70 move the supported pallet to the unloading station 82.
Lower it to 5.

At this time, read and write head 917 for the pallet
writes the machining data of each workpiece to the memory element of the pallet 8o. Specifically, the central processing unit 900 determines the quality of the machining result based on the measurement data of the external measurement performed in step 2000, and the read/write head 917 writes the quality data for each workpiece into the memory element of the pallet. .

The tool exchange program from step 1710 to step 1730 may be executed after machining one pallet.

The above flow is repeated for all pallets, and in step 2400, it is confirmed that processing of all pallets has been completed,
Automatic operation is ended in step 2500.

FIG. 9A shows another embodiment of the control flow.

Automatic operation starts at step 2600, and step 2
At 610, the pallet 80 is transferred to the loading station 82.
Confirm that it has been imported to 0.

At step 2620, storage element 815 of pallet 80 is read. By this reading, all the information necessary for processing the workpiece is sent to the control device 90 of the automatic processing device.

At step 2630, the control device 90 checks the tools and jaws currently prepared in the automatic processing device and determines whether there are any shortages.

If there is a shortage, the process advances to step 2640, and data on the tools and jaws that are missing is displayed to the operator.

The operator sets up tools and jaws in the stocker 40 according to this display.

When the completion of the setup is confirmed in step 2650, the process proceeds to step 2660, where the connecting pins 4.50 of the stocker 4o are protruded and connected to the traveling carriage 60.

In step 2670, the stocker 40 is moved and the memory elements of the set up tools and jaws are read.

At step 2680, the pin 450 of the stocker 40 is removed from the traveling carriage 6o, and the process returns to step 2620.

If there are no tools or jaws missing, step 270
0, and the machining schedule and system operation data are created. The processing schedule indicates a processing schedule for a lot of brought-in pallets, and the system operation data indicates cumulative production results.

Thereafter, the process is connected to step 1200 of the flow explained in FIG. 9, and automatic processing is executed.

In addition, in the automatic processing apparatus 1 described above, an example was shown in which the stocker device 30 was arranged on the left side of the compound machining lathe 10 when viewed from the front, but as shown in FIG. It can also be placed. Therefore, it is possible to freely arrange the automatic processing apparatus 1 according to the installation space.

The present invention provides an apparatus that further improves the efficiency of unmanned machining by making effective use of the stocker 40 that accommodates tools and jaws.

Figures 12-14 show details of the invention.

For example, as for the number of tools used in this automatic machining apparatus, 12 tools can be accommodated in each of the first turret l-122 and the second turrets l-1 and 42 of the compound machining lathe 10.

On the other hand, the stocker main body 400 of the stocker 40 has a flange 412 that is a first seal stocker and a flange 422 that is a second tool stocker.
The second flange 2 and the second flange 422 can each accommodate ten tools.

FIG. 12 shows the action of the tool hand 240 attached to the arm 230 of the transfer robot 220 to exchange the tool 160 with respect to the first turret 122 or the second turret l-1, 42.

Tool hand 240 includes a first gripper head 243 and a second gripper head 245.

The first gripper head 243 is connected to the first tool stocker 412 and the second turret 122 of the stocker main body 400.
The second gripper head 245 exchanges tools between the second tool stocker 422 and the second turret 142.
Exchange tools between.

That is, functionally, the tools in the first tool stocker 412 are exclusive to the first turret 122, and the tools cannot be exchanged between the second turrets 142.

Therefore, the first turret 122 has the first 12 tools in addition to the first turret 122 in the first tool stocker 41.
In addition to the 10 tools stored in 2, a total of 22 tools can be used. Similarly, the second turret 142 can also use a total of 22 tools.

In the compound machining lathe operator 0, the material workpiece is normally carried into the first spindle 110 and subjected to the first step of machining,
Next, a machining process is programmed such that the workpiece is transferred from the first spindle 1.10 to the second spindle 130 and subjected to a second process.

In this way, if you try to have the first spindle always take charge of the first process and the second spindle take charge of the second process, the number of tools set up in the tool stocker will be unevenly distributed when machining a variety of workpieces. Something happens.

FIG. 13 shows the uneven distribution of tools. For example, assume that the number of tools prepared in the first tool stocker 412 for the first process A□ of workpiece A is three, and Two tools are prepared in the second seal stocker 422 for A2.

Next, the number of tools to be prepared in the first tools 1 to 4]2 for the first process B□ of a different type of workpiece B is set to 5,
It is assumed that only three tools are required to be prepared in the second stocker 422 for the second process B2 of the work B.

Furthermore, when processing a different type of workpiece C, if four tools are required for the first process C1 and two tools are required for the second process C2, the capacity of the first tool stocker 412 is It exceeds.

Therefore, if an attempt is made to process the workpiece C in this state, the required number of tools will be insufficient and the process will not be possible. Therefore, it is necessary to interrupt the unmanned processing and change the tools to the stocker.

In the present invention, the imbalance of the tool stocker is eliminated,
By making effective use of it, unmanned processing can be performed for longer periods of time.

FIG. 14 shows the setup state of the tool stocker that accompanies the switching of the machining process.

That is, regarding the work A and the work B, the first machining steps A1 and B1 are performed on the first spindle 1]○ side, and the second machining steps A2 and B2 are performed on the second spindle 130 side.

When machining the workpiece C, the machining processes are switched so that the first process C is executed by the second spindle 130 and the second process C2 is executed by the first spindle 110. Change the program. With this modification of the machining program, the tools to be set up in the tool stocker in advance can be stored in the second tool stocker 422 for the tool for process c1 and in the first tool stocker 412 for the tool for process c2. can. Therefore, by effectively utilizing the storage capacity of the tool stocker, unmanned operation for a longer period of time can be achieved.

The work hand 280 attached to the transfer robot 220 is
The work on the pallet 80 is moved to the first spindle 110 or the second spindle.
Since it is possible to selectively carry in and out of the main spindle 130, each workpiece can be carried into any desired main spindle by preparing a transfer program.

The above description has been about the relationship between the tools 160 to be set up in the first and second tool stockers and the first and second turrets.
The relationship between the jaw 170 to be set up to 0 and the first chuck 112 of the first spindle 110 with which this jaw 170 is replaced, and the jaw 170 to be set up to the second jaw stocker 420 and this jaw 170 to be replaced. The relationship between the chuck 132 of the second main shaft 130 that is the counterpart is exactly the same.

Therefore, by switching the machining process,
To effectively utilize the capacity of a jaw stocker by eliminating uneven distribution of jaws set up in the jaw stocker.

Next, in the embodiment shown in FIG. 15, the structure of the tool and jaw stocker 40 is changed.

The tool of this embodiment, the jaw stocker 47, has a base 47
0 is equipped with two chain-type magazines 471° and 472. The two magazines 471, 472 each pivot in a vertical plane and are driven and indexed by a drive device (not shown).

The first magazine 471 and the second magazine 472 each have 60 stations, each station housing a tool 160 and a jaw 170.

The first magazine 471 has an index position 471A for exchange, and at this position, tools and jaws are exchanged with the tool hand or jaw hand of the transfer robot 220.

The first magazine 471 supplies the tools 160 and jaws 170 to the first spindle 110 and the first tool rest 120.

Therefore, since the first tool rest 120 is equipped with 12 tools on the turret 122, the first magazine 471
In total, 72 tools can be used. The chuck 112 of the first spindle 110 also has one set of jaws initially equipped, and the first
In total, 21 sets of jaws can be used, including the 20 sets of jaws accommodated in the magazine 471.

The second magazine 472 also has the same configuration as the first magazine 471, and supplies the tools 160 and jaws 170 to the turret 142 of the second tool rest 140 and the chuck 132 of the second main shaft 130.

According to the tool and jaw stocker of this embodiment, a large number of tools and jaws can be prepared, and by switching the machining process, it is possible to handle a wider variety of workpieces.

〔Effect of the invention〕

As described above, the present invention includes a compound machining lathe including a first main spindle and a second main spindle, a conveying device for conveying a member to the compound machining lathe, and a control device for controlling the entire device. Since the machining schedule for the first machining process, which is machined with the main spindle, and the second machining process, which is machined with the second main spindle, can be switched in any order, the degree of freedom in creating a machining schedule is improved. It also improves the efficiency of automatic processing.

Furthermore, by preparing tools and jaws for the stocker, it is possible to process a wider variety of workpieces, but since the stocker is dedicated to the first and second spindle sides, the tools and jaws prepared for the stocker are By switching the workpiece machining process to eliminate the imbalance, rational unmanned machining can be achieved over a longer period of time.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. Fig. 1 is a perspective view showing the entire automatic processing device, Fig. 2 is a front view, Fig. 3 is a plan view, Fig. 4 is a left side view, Fig. 5 is an explanatory diagram showing an outline of a multi-tasking lathe, Fig. 6 is a sectional view of the main parts of the stocker device, Fig. 7 is a side view of the main parts of the stocker device, Fig. 8 is a block diagram showing an outline of the control device, and Figs. 9 and 9A are the flow of control. 10 is an explanatory diagram showing the items to be written in the memory element of the pallet. FIG. 11 is a front view showing another example of the arrangement of the automatic processing device. FIG. 12 is an explanatory diagram showing the situation of tool exchange. FIG. 13 is a plan view showing the preparation status of the stocker, FIG. 14 is a plan view showing another preparation status of the stocker, and FIG. 15 is a perspective view showing another embodiment of the stocker. Automatic processing equipment Combined processing lathe/transport device Stocker device 7...Stocker External measurement device Traveling trolley/Fork device Pallet 5...Control device/First spindle/First turret...Second main spindle Second Turret, tool, jaw, tool hand, jaw band, work band, 1st jaw stocker... 10... 20... 3o... 40, 4 50... 6o... 70・・・ 80... 90, 9 110... 122... 1-30... 142... 160 ・・・ 170... 24.0... 260... 280... 410... 412...First tool stocker 420...Second jaws 1 to lug 422...
・Second tool stocker patent applicant Yamazaki Mazatuku Co., Ltd. Embedded
Patent Attorney Yoshiaki Numagata (2 others)

Claims (1)

[Claims] 1. In an automatic processing device equipped with a multi-tasking lathe, a conveyance device for transporting a member to the multi-tasking lathe, and a control device for controlling the entire device, the multi-tasking lathes are arranged facing each other. A first tool rest having a first main shaft and a second main shaft arranged, a first tool rest having a turret that cooperates with the first main shaft, and a second tool rest having a turret that cooperates with the second main shaft. , the transfer device includes a guide rail disposed between the compound machining lathe and the stocker device that accommodates the parts, a transfer robot that runs by itself on the guide rail, an arm that is attached to the transfer robot and that extends and contracts in the vertical direction, The stocker device includes a hand that is replaceably attached to the tip of the arm, and the stocker device includes a first stocker that accommodates a jaw and a tool that feeds the first spindle and the first tool rest, and a second spindle and the first tool rest. The control device includes a second stocker that accommodates the jaws and tools that are supplied to the second tool rest, and the control device controls the first machining process executed on the first spindle side and the second machining process executed on the second spindle side.
An automatic processing device comprising means for switching a machining program consisting of machining steps in an arbitrary order, and in which tools and jaws are arranged in the first and second stockers in consideration of switching of the machining steps. 2. In an automatic processing device equipped with a multi-tasking lathe, a conveyance device for transporting parts to the multi-tasking lathe, and a control device for controlling the entire device, the multi-tasking lathe has first a main shaft and a second main shaft; a first tool rest having a turret that cooperates with the first main shaft; and a second tool rest having a turret that cooperates with the second main shaft; A guide rail installed between the processing lathe and the stocker device that accommodates the parts, a transfer robot that runs on the guide rail, an arm attached to the transfer robot that expands and contracts in the vertical direction, and the tip of the arm that can be replaced. The stocker device includes a first stocker that accommodates a jaw that supplies tools to the first spindle and the first tool rest, and a hand that supplies the tools to the second main shaft and the second tool rest. a second stocker for accommodating jaws and tools to be stored, and the control device is configured to store the first
An automatic machining device comprising means for switching a machining process between a first machining process executed on the spindle side and a second machining process executed on the second spindle side.