JPH03287353A - Flexible manufacturing system in processing machine group - Google Patents

Abstract

PURPOSE:To set a work at a specific position on a processing table automatically by providing an intermediate delivery device to deliver a pallet while maintaining its positioned condition between a stacker crane and each processing machine. CONSTITUTION:Each intermediate delivery device which reciprocates between a stacker crane and each processing machine 1, and delivers a pallet P while maintaining its positioned condition is provided. As a result, by arranging a processing table 75 furnishing a process standard means on the X-Y table 74 of a processing machine 1, and setting a work W at a preset position on the pallet P furnishing a process standard means, the work W can be set at the processing position of the processing machine 1 accurately, rapidly, and without providing worker, only by fixing the pallet P carried in on the processing table 75 by using a pallet pushing device 77 and a clamp device 85.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to a wire electrical discharge machine, a fine electrical discharge machine, a die carving machine, etc. in order to perform various desired processing on a workpiece. The present invention relates to a flexible manufacturing system for a group of processing machines, such as an electrical discharge machine, a laser processing machine, a water jet processing machine, etc., in which a workpiece is automatically carried in and out of a predetermined processing machine.

[Conventional technology]

In general, a wire electrical discharge machine uses a vertically running portion of a wire electrode to generate electrical discharge between the workpiece and the wire electrode, thereby machining the workpiece using electrical discharge energy. The wire electrode is guided by various rollers such as a tension roller and a brake roller in an automatic wire supply device, and is supplied to a wire head having a wire guide with appropriate tension applied thereto. In this wire electric discharge machine, the X-Y table on which the workpiece is attached moves in the X direction and the Y direction according to the machining status of the workpiece according to commands from the NC device, and the movement of both is controlled.
Machining progresses between the electrode and the X-Y table. During machining, the electrode and the X-Y table repeat servo movement, and the workpiece is electrically discharge-machined into a predetermined machining shape by the relative movement of the two.

In addition, for small and large electrical discharge machines, electrical discharge machining is performed to make small holes or small holes at predetermined positions on the workpiece, or
In order to perform electrical discharge machining on a workpiece with a wire electrical discharge machine, a start hole is made at a predetermined position on the workpiece through which a wire electrode is passed through electrical discharge machining, and electrical discharge is generated between the workpiece and the vibrating electrode to generate electrical discharge energy. This is used to machine workpieces into small pieces.

In addition, a die-sinking electric discharge machine machine processes the workpiece by generating electric discharge between the workpiece and an electrode of various shapes such as a rod shape, and using the electric discharge energy.

Recently, various apparatuses have been disclosed regarding electrical discharge machines to accomplish machining such as machining of large workpieces, progressive machining, and unmanned machining through automation. When such electric discharge machining is performed automatically, if the wire electrode is cut or lost during electric discharge machining, or if the vibrator electrode or rod-shaped electrode is worn out, the wire electrode, vibrator electrode, or An electrode exchange device is provided that automatically exchanges a die engraving electrode. For example, JP-A-63-13961
No. 6 discloses a wire electrode exchange device.

In addition, the automatic wire electrode feeding method for a wire electrical discharge machine is
For example, Japanese Patent Application No. 63-13, which is an application filed by the present applicant.
Further, a wire electrical discharge machine that automatically takes out a core, that is, a work piece from a workpiece, disclosed in Japanese Patent Application No. 9616, is disclosed in, for example, Japanese Patent Application No. 1-98878 filed by the present applicant.
Disclosed in the issue.

In addition, regarding small and large electrical discharge machines, for example,
246021 Publication, Utility Model Application Publication No. 1-143321,
Some of these are disclosed in Japanese Utility Model Application Publication No. 1-143321. JP-A-1-246021 discloses a pipe electrode exchange device. The pipe electrode exchange device includes a holder portion fixed to a rotating spindle, a chuck portion holding an electrode detachably attached to the holder portion by a locking means, an attachment/detachment means for attaching and detaching the holder portion and the chuck portion, and The chuck pallet is installed close to the table and has a plurality of support parts supporting the chuck part, and the holder part is connected to the machining position for electrical discharge machining of the workpiece and the support part of the chuck pallet. It is characterized by being configured to be movable between the two.

As a result, the small and large electrical discharge machine or start hole machining device is configured so that the chuck section equipped with the pipe electrode can be easily, reliably, and automatically attached to and detached from the holder section with one touch, and can be attached to the workpiece at several locations. When the pipe electrode wears out due to thinning, fine hole machining or start hole machining, it can be automatically replaced with a new pipe electrode, and it can continue to drill fine holes, fine holes or start holes on the workpiece fixed on the work table. This made it possible to perform electrical discharge machining.

Furthermore, as an FM varnish for wire electric discharge machines, there is one disclosed in Japanese Patent Application Laid-open No. 120960/1983.

The FMNIS has a circular workpiece moving station in the center, and around it are various types of wire-cut electrical discharge machining stations, die-sinking electrical discharge machining stations, laser processing stations, electrical discharge coating processing stations, and water jet processing stations. will be established. When machining is performed using FM Nis, the most suitable processing station is first selected, and a series of operations are performed using a program input into the computer of the control device that collectively controls the entire FM Nis.

Furthermore, Japanese Patent Laid-Open No. 1-193125 discloses a processing machine equipped with an unloading device. The unloading device is a device that uses an electromagnet to detect the inductance of a coil that changes when a workpiece of a wire electric discharge machine is attracted, confirms attraction, and discharges the workpiece,
It has a rotatable arm equipped with a magnet that attracts the workpiece at the tip, and a slide mechanism that moves the arm up and down,
Control that applies a minute voltage between a bumper made of a conductive material attached to the outer periphery of the arm via an insulator and the bumper and the machine body, and detects the current that flows when the bumper comes into contact with the machine body. It is equipped with a device.

[Problem A11 to be solved by the invention] However, none of the above-mentioned conventional electrical discharge machines automatically sets and attaches the workpiece to the X-Y table in the electrical discharge machine, and there is no way to fully automate the electrical discharge machine. This poses an obstacle to achieving this goal.

Therefore, various processing machine groups such as wire electrical discharge machines, narrow and large electrical discharge machines, die-sinking electrical discharge machines, etc. are arranged, and workpieces are transferred from stock locations such as racks that store workpieces to one of the processing machine groups. The process of automatically loading the workpiece into the processing machine, setting it, processing the workpiece, and then transporting the workpiece from the processing machine is completely automated, and the workpiece can be handled unmanned day or night. It is desired to perform various types of processing continuously.

In addition, the FMNIS disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 120960/1983 has a limit to the number of workpieces that can be mounted on the circular station, and in order to prepare a large number of workpieces,
As the diameter of the circular station increases, there is a loss of floor space dedicated to the equipment itself for FM varnishing, and processing times differ between various processing machines, resulting in process waiting time. When a machine is present, there is a problem in that a time loss occurs in loading the workpiece onto the processing machine, and the cycle efficiency decreases.

In particular, it does not have any technical concept of automatically and accurately positioning a workpiece with respect to a processing machine.

The purpose of this invention is to solve the above problems,
A pallet with pre-set workpieces is placed on various processing machines such as a wire electrical discharge machine, a small and large electrical discharge machine, and a die-carving and fine-hole electrical discharge machine.
A stacker crane that moves back and forth along the pallet running system is used to transport the pallets between a group of processing machines installed with a large number of EDMs and a stocking location such as a rack, and to position the pallets during the pallet running system. A setup indexing device for inserting the workpiece, a rust prevention treatment device for applying rust prevention treatment to the workpiece, and a fluid spraying device for removing deposits such as machining fluid, foreign matter, and dust attached to the surface of the workpiece. A device is provided, and in particular, an intermediate transfer device is provided for reciprocating between the stacker crane and the group of processing machines to maintain the positioning state of the pallet and transfer it, thereby completely automating various types of processing on workpieces. Another object of the present invention is to provide a flexible manufacturing system for a group of processing machines that can continuously perform various types of processing on workpieces day and night, unmanned.

Furthermore, the flexible manufacturing system of this processing machine group allows pallets to be
A processing table that serves as a processing reference is provided on a table such as a Y table, and a carry-out means, reference setting means, clamping means, etc. are provided on the processing table, and the workpiece is automatically set at a predetermined position on the processing table. The workpiece can be set accurately and reliably on the table to improve the reliability of the setting accuracy, and the workpiece can be machined sequentially and the machining accuracy can be improved. Automatically carry out the set pallet from the processing table to the stacker crane side, and repeat the above steps to carry out each process of carrying in, setting, processing, and carrying out the workpiece automatically and unattended. It is something that can be done.

[Means to solve the problem]

In order to achieve the above object, the present invention is configured as follows. That is, the present invention provides a processing machine group in which a large number of various types of processing machines are installed, a pallet that is attached to the processing machine group and is equipped with a reference means and that allows workpieces to be set at predetermined positions.
A rack provided with a plurality of shelves having openings for taking in and out the pallets, the rack being reciprocated along a travel path between the rack and the processing machine group, and the pallet being moved between the processing machine group and the rack. a stacker crane for carrying in and out between the stacker crane and each of the processing machines, and a stacker crane that moves back and forth between the stacker crane and each of the processing machines, and delivers and maintains the positioning of the pallet between the stacker crane or each of the processing machines; The present invention relates to a flexible manufacturing system in a processing machine group having intermediate transfer devices for processing.

Further, in the flexible manufacturing system in this processing machine group, each processing machine in the processing machine group includes a processing tank mounted on a table, an opening/closing door formed in the processing tank that opens and closes an entrance for the pallet, and the table. A processing table mounted on the processing table, a pallet pressing device provided on the processing machine for pressing and setting the pallet against a set position of the processing table, and a processing standard for the pallet carried onto the processing table. It has a clamp device for fixing it to the site.

Furthermore, in the flexible manufacturing system of this group of processing machines, the pallet is carried in and out in response to the opening state of the opening/closing door of the processing tank, and the processing machine is operated in response to the closing state of the opening/closing door of the processing tank. It has a controller to

In the flexible manufacturing ring system in this group of processing machines, the pallet has a cutout hole in the center that is wider than the machining area of the processing machine, and the pallet has a cutout hole in the center that is wider than the processing area of the processing machine. a reference means that matches the processing reference means of the processing table provided on the processing machine, and a processing area of the processing machine at a position predetermined from the reference means in order to set the workpiece at a predetermined position on the pallet. It has fixing means provided on the outside.

In the flexible manufacturing system of this processing machine group, the clamp device includes a connecting bar provided on the processing table, a clamp provided on the connecting bar, and an actuator that moves the connecting bar up and down, and the actuator is controlled by a controller. In response to the command, the reference means of the pallet is pressed against the reference means of the processing table, and the pallet is operated with the pallet stationary at a predetermined position.

Alternatively, the present invention relates to a processing machine group in which a large number of various types of processing machines are installed, a pallet that is attached to the processing machine group is equipped with a reference means and has a workpiece set at a predetermined position, and an opening for entering and exiting the pallet. a stacker for reciprocating along a travel path between the rack and the processing machine group and transporting the pallet in and out between the processing machine group and the rack; a crane, a valet/valley for loading and positioning the pallet in order to carry the pallet into and out of the stacker crane in a positioning state;
) A setup indexing device equipped with a mounting base, a barre for applying rust prevention treatment to the workpiece; 7) A rust prevention treatment device installed in the traveling system, which sprays fluid to remove deposits attached to the surface of the workpiece. A fluid spray provided in the pallet traveling system to remove the liquid is moved back and forth between the stacker crane and each of the processing machines, and positions the pallet between the stacker crane or each of the processing machines. The present invention relates to a flexible manufacturing system in a group of processing machines having intermediate transfer devices for maintaining and transferring.

[Effect]

The flexible manufacturing system for a processing machine group according to the present invention is configured as described above, and operates as follows. In other words, this flexible manifolding system uses a pallet that is equipped with a reference means and can set workpieces in a predetermined position for installation on a group of processing machines that have a large number of different types of processing machines installed, and there is no need to move the pallet in and out. a stacker for reciprocating along a travel path between a rack provided with a plurality of shelves having openings and the processing machine group, and for carrying the pallet in and out between the processing machine group and the rack; A crane is provided, and each intermediate transfer device moves back and forth between the stacker crane and each of the processing machines and transfers the pallet while maintaining the positioning state between the stacker crane or the group of processing machines. Therefore, if a processing stand equipped with a processing reference means is placed on the X-Y table of the processing machine, and a workpiece is set at a predetermined position on a pallet equipped with a processing reference means, the above-mentioned By simply fixing the pallet carried onto the processing table to the processing reference area using a pallet pressing device and a clamp device, the workpiece can be set at the processing area of the processing machine accurately, quickly, and unattended. . Therefore, the stacker crane and the intermediate transfer device can carry the barre 7) into the processing machine, and automatically set the workpiece at a predetermined position on the processing table of the processing machine reliably, quickly, and unattended. Furthermore, after the workpiece has been processed, it can be automatically and unmanned from the processing machine, carried out by the intermediate transfer device, and then by the stacker crane from the processing machine group to an appropriate location.

In addition, this flexible manufacturing system has a setup indexing device equipped with a pallet mounting base, so if the pallet carried into this processing system is placed at a predetermined position on the pallet mounting base, subsequent pallets can be Regarding movement, it is possible to always maintain a positioned state, and the pallet can be moved, carried in and out, stored, managed, etc. while maintaining a positioned state with respect to a stacker crane, a group of processing machines, etc.

Furthermore, since this flexible manufacturing system has a rust prevention treatment device installed in the pallet traveling system, it is possible to automatically and unmannedly apply the optimal rust prevention treatment to the workpieces on the pallet.

In addition, this flexible manufacturing system has a fluid spraying device installed in the pallet traveling system, so
Adhesive materials such as machining liquid, foreign matter, and dust adhering to the surface of the workpiece can be automatically and unmanned removed by spraying fluid.

Moreover, if the heavy-loaded pallet can be pressed and positioned at the processing reference position of the processing table by a pallet pressing device provided in the processing machine, and the clamping device is operated in conjunction with the pallet pressing device, It is possible to automatically, accurately and reliably set the position of the above-mentioned barn with respect to the processing table with a high degree of precision.

Further, if the operation or operation of the intermediate transfer device and the processing machine is controlled in response to the operation of an opening/closing door that can open and close the entrance/exit of the processing tank of the processing machine, the loading/unloading operation and the processing process can be controlled in a predetermined operation process. Accordingly, each device can be operated accurately, reliably, and in an extremely safe manner. Therefore, for example, when electrical discharge machining is performed on the workpiece, a series of work steps such as loading the workpiece into the processing machine, setting, machining, and unloading can be performed automatically and unattended, day and night. The processing machine can be operated regardless of the situation.

〔Example〕

Hereinafter, with reference to the drawings, a flexible manufacturing medium ring system (hereinafter referred to as
An example of the FMS will be described. In this example of FMS, the processing machine group is applied to a group of electrical discharge machines such as a wire electrical discharge machine, a small and large electrical discharge machine, and a die-sinking electrical discharge machine. However, the present invention can be applied to other processing machines such as laser processing machines and water jet processing machines that process workpieces. Further, the machining tank device includes a machining tank that stores the machining fluid, a machining tank cover device that prevents the machining fluid, machining debris, etc. from scattering, a guard for safety, and the like. In addition, the workpiece here refers not only to the workpiece but also to the finished workpiece, and the processing machine itself is capable of not only processing but also assembly, final finishing, etc. be.

First, an outline of an embodiment of an FMS in a processing machine group according to the present invention will be explained with reference to FIGS. 1 and 2. As shown in the figure, this FMS consists of a group of processing machines each including a wire electrical discharge machine 1, a small electrical discharge machine 2, and a die-sinking electrical discharge machine 3, and a pallet P with a workpiece W set at a predetermined position. It has a rack 4 equipped with a plurality of storage shelves 19, a stacker crane 6 that reciprocates along a travel path 5, and an intermediate transfer device 7 that reciprocates between the stacker crane 6 and the processing machine group. be. Furthermore, this FMS
These include a setup indexing device 9 equipped with a pallet mounting table 11 for mounting and positioning a pallet P, a rust prevention treatment device 10 for applying rust prevention treatment to a workpiece W, and a machining liquid attached to the surface of the workpiece W. A fluid spraying device 12 is provided for removing deposits such as foreign matter and dust.

In this FMS, a wire electrical discharge machine 1 is used as a processing machine (EDM) in which a large number of various types of processing machines are installed.
, small and large electrical discharge machine 2 and die-sinking electrical discharge machining I! 3 are shown one by one. Note that each processing machine has a filtering device 21 having a different function for each processing machine in order to filter and clean the processing liquid used in the processing machine.

In addition, in this FMS, since the system is controlled by a controller (not shown), a control panel 13 for setup, indexing, and rust prevention treatment, inventory management [14], relay panel 15,
It is equipped with a switch box 16, etc. The travel path 5 of the stacker crane 6 is provided with a mole rail 18 for the stacker crane 6 to reciprocate, and a protective shelf 17 for ensuring safety.

Furthermore, the controller (not shown) contains information on what kind of workpiece W is set in advance on the barrel P carried in and out through the setup indexing device 9, and the setup indexing device 9.
Information on the loading/unloading order of pallets P loaded/unloaded through
In each column 19, information on the baren (P) stored in the column 19, information on loading/unloading the workpiece into/out of the processing machine, information on the workpiece W being processed, etc. are stored. Based on the above information, the controller is previously inputted with information on what kind of machining machine is used to process the workpiece W.

In the operation of this FMS, for example, the steps from the planning schedule to the preparation of the setup schedule are configured as shown in FIG. 53. First, a planned schedule is created in the host computer, and the next planned schedule is also created. The planned schedule created by the host computer is transmitted from the host computer to the control computer in the FMS. The planned schedule received by the control computer is displayed on a display or the like, and changes or additional settings are made to the planned schedule. Next, for example, a daily schedule is created from the planned schedule. Here, as a simulation, a schedule in -day units is simulated, the load factor of each processing 1, 1, 2, 3, a schedule for each processing machine, and a setup schedule are created, and a work instruction sheet is created. After performing each of the above processes, the setup indexing device 9 starts the setup indexing work.

Next, with reference to FIG. 3, an outline of another embodiment of the FMSO in the processing machine group according to the present invention will be explained. This FMS
In this embodiment, compared to the FMS embodiment described above, the number of installed wire electrical discharge machines 1, small and large electrical discharge machines 2, and die-sinking electrical discharge machines 3 in the processing machine group, the layout of these processing machines, and The systems perform similar functions except that the layout of each device is different. In this embodiment, one small electric discharge machine 2 for machining a predetermined start hole in a workpiece W using a pipe electrode PE is installed at a position opposite to a setup indexing device W9. On the other hand, in the figure, five wire electrical discharge machining units Ill are installed for machining the workpiece W into a predetermined shape by passing the wire electrode WE through a start hole formed in the workpiece W. Further, in the figure, four die-sinking electrical discharge machining machines 1 and 3 are installed for machining a workpiece W using die-sinking electrodes RE of various shapes such as rod shapes. That is, the time required to machine a start hole in a workpiece W with the fine and large electrical discharge machine 2 is short, whereas the time required to machine a start hole in the workpiece W with the wire electrical discharge machine 1 is very short.
It takes a long time to penetrate E and process a predetermined shape. Further, although the time required for die-sinking electric discharge machining 813 is different from that of the wire electric discharge machine 1, it takes a certain amount of time.

Therefore, by installing the number of various processing machines according to the time required for processing the workpiece W,
It is possible to shorten the cycle time from the time when the workpiece W is carried in and attached to the processing machine until the time when the workpiece W is removed and carried out, and the process waiting time of the processing machine can be shortened, and cycle efficiency can be improved.

Next, each device that can be used in each of the above embodiments of the FMS in the processing machine group according to the present invention, that is, the pallet P1
rack 4, setup indexing device 9, stacker crane 6,
Rust prevention treatment device 10, fluid spraying device 12, intermediate transfer device 7, processing table devices for wire electrical discharge machine 1 and small and large electrical discharge machine 2, and pipe electrode exchange device 2C for small and large electrical discharge machine 2
, the work piece removing device 130 and the machining tank device 79 of the wire electric discharge machining machine 11, the machining table device and the machining tank bag f79 of the die-sinking electric discharge machine 3, etc. will be explained.

In this FMS, the pallet P is used to preset various workpieces W at predetermined positions, and is made of a material such as stainless steel that has mechanical rigidity, electrical conductivity, and rust resistance. It is equipped with mounting reference means such as reference fittings having a common reference surface for various types of processing, and locking means such as recesses. An example of Ballen) P will be described with reference to FIGS. 4, 5, and 6. Fig. 4 is a plan view showing an example of a pallet that can be commonly used in this FMS, Fig. 5 is a cross-sectional view taken along line V-V in Fig. 4, and Fig. 6 is a cross-sectional view taken along line Vl-Vl in Fig. 4. It is a diagram.

This barre 7)P has a cutout hole 24 in the center of the pallet body 8 which is wider than the machining area of the wire electric discharge machine 1 in order to run the wire electrode WE. A workpiece holder 25, which is a fixing means for setting the workpiece W in a predetermined position, is fitted into the cutout hole 24 of the pallet body 8. There are many workpiece holders 25! 1! Various cutout holes 34 matching the shape of the workpiece W are formed in the center of these workpiece holders 25. A workpiece setting jig 26 can be replaceably attached to the cutout hole 34 of the workpiece holder 25. Therefore, after fitting the workpiece W into the cutout hole 34 of the workpiece holder 25, the workpiece W can be fixed to the pallet P by tightening the clamp 27 provided on the workpiece setting jig 26.

The workpiece setting jig 26 is prepared in various shapes that match the shape of the workpiece W.

The mounting reference means for the baren) P is 1.2゜3
- It functions to set the pallet P at a predetermined position in the height direction, that is, the Z direction, and the horizontal direction, that is, the X and Y directions, with respect to a reference plane provided on the processing platform on the Y table. Consisting of two finished surfaces 28 formed on both sides of the lower surface of the pallet main body 8 in the height direction, and a reference metal fitting 29 provided on the front end surface 29F of the pallet main body 8 and a reference metal fitting 30 provided on one side surface 303 in the horizontal direction. can.

The finished surfaces 28 are parallel to each other and have the same height. Further, the reference fittings 29 and 30 are preferably made of a rust-resistant material such as ceramics or carbide and a material with high wear resistance ε, and are replaceably attached to the pallet body 8. There is. The reference surface 29 of the reference metal fitting 29 provided on the front end surface 29F and the reference surface 30 of the reference metal fitting 30 provided on one side 30S are perpendicular to each other, and each reference surface 29, 30 and each finished surface 28 are perpendicular to each other. are orthogonal to each other. Further, the rotation center axis of the through hole 24 is perpendicular to each finished surface 28 . For example, on the front end surface 29F of the baren) P on the side facing the wire electrical discharge machine 1, a reference is provided as a processing reference positioning means provided in the wire electrical discharge machining machine Ill in order to set it at a predetermined position in the horizontal direction on the processing table. A reference surface 29K is formed as a reference means that matches the positioning stopper having a surface. In addition, processing machine group 1.
Each positioning stopper provided at 23 is preferably made of a rust-proof and wear-resistant material such as ceramics or carbide, and is attached to the processing table so as to be replaceable.

The locking means of the barrel P are a plurality of recesses formed on the back surface of the pallet body 8. That is, multiple (in the figure, two)
The recess 31 is engaged with a common locking pin provided on the fork of the stacker crane 6. Multiple (in the figure,
The two recesses 33 are bottle holes, and the intermediate transfer device 7
A common actuation pin provided on the lifter of the machine is engaged, and by engaging the actuation pin with the pin hole, the baren) P can be pushed into or pulled out of each processing machine 1.2.3. I can do it. Also, multiple (two in the figure)
The recessed portion 32 includes the setup indexing device 9 and the rust prevention treatment device 10.
and a common locking pin provided on the intermediate transfer device 7 engages with each other.

This FMS is provided with a rack 4.

The rack 4 has a large number of openings 20 along the longitudinal direction of the travel path 5 of the stacker crane 6 for loading and unloading the pallets P.
Inside the opening 20, a large number of shelves 19 are arranged in the vertical direction for storing pallets P or pallets P on which workpieces W are set in advance. Therefore, the pallet P is stored on the shelf 19 or taken out from the shelf 19 to the stacker crane 6 by the operation of the stacker crane 6.

A rust prevention treatment device 10 and a fluid spraying device 12 are arranged in appropriate openings 20 of the rack 4.

An upper rail 48 is attached to a frame protruding from the upper part of the rack 4 toward the travel path 5 side for guiding the upper part of the stacker crane 6.

Further, in this FMS, as shown in FIGS. 7, 8, and 9, a setup indexing device 9 is provided on the base 36 of the setup station.

FIG. 7 is a plan view showing an example of a setup indexing device that can be used in this FMS, FIG. 8 is a front view of FIG. 7, and FIG. 9 is a front end side view of FIG. 7.

At this setup station, as shown in FIG.
As a setup indexing operation, a setup schedule is created and setup for mounting a workpiece W on a pallet P is started. First, the stacker crane 6 is operated to unload an empty pallet P from the shelf 19 of the rack 4 to a setup station, and a workpiece W is attached to the pallet P. When the workpiece W is installed on the pallet P at a predetermined position, the stacker crane 6 is operated again to store the pallet P with the workpiece W set on the shelf 19 of a predetermined rack 4. Next, the pallet P with the workpiece W attached thereto is carried into a predetermined processing machine 1, 2.3 by the operation of the stacker crane 6, and subjected to electrical discharge machining. Workpiece W after electrical discharge machining
The pallet P with the attached pallet P is stored again on the shelf 19 of a predetermined rack 4 by the operation of the stacker crane 6, or is carried out to the setup station. At the setup station, a command is given to the pallet P on which the workpiece W that has been subjected to electrical discharge machining, which is housed in a predetermined shelf 19, is attached, to be unloaded, and the stacker crane 6 is operated to move the pallet P to the setup station. Transport to. Workpiece W from pallet P
The removed workpiece W, i.e., the product, is carried out to a predetermined location. However, the pallet P from which the workpiece W has been removed is stored on the shelf 19 of the rack 4 by operating the stacker crane 6 again. At the 0 setup station,
The above operations are repeated.

In order to accomplish each of the above-mentioned operations, the setup indexing device 9 is configured to load and position the workpiece W on a pallet P, and to make it possible to carry the pallet P into and out of the stacker crane 6 in a predetermined positioning state. be. In the figure, two setup indexing devices W9 are provided. For example, one setup indexing device 9 is configured exclusively for carrying in the barre 7)P, and the other setup indexing device 9 is configured to carry in the barre 7)P. It can be configured exclusively for carrying out. Traveling trolley 37 of setup indexing device 9
The stacker crane 6 is reciprocated by a moving device 41 on a rail 35 arranged perpendicularly to the mole rail 18 of the travel path 5 along which the stacker crane 6 travels. In the figure, the moving device 41 is composed of a motor, a speed reducer, a sprocket 41S fixed to the base 36, a chain 41C hanging on the sprocket 41S, etc., but is not limited to this, and can also be composed of a hydraulic cylinder or the like. . On the traveling carriage 37, there are rotatable rollers 40 arranged around the periphery.
A pallet mounting base 11 is arranged rotatably about a rotation shaft 43 via the top. The pallet mounting base 11 is supported by a circular track member that rotates on the rollers 40 and a support member on the track member, and can rotate over 360° on the rollers 40. Further, the rotation movement of the pallet mounting table 11 is configured so that it can be rotated into four equal parts by manual indexing or automatic indexing, and the origin of the rotation movement is configured to be confirmed by a limit switch or the like.

Further, a stopper pin 39 is provided on the traveling cart 37, and the stopper pin 39 is configured to be able to be locked to a locking member 42 provided on the pallet mounting base 11. Therefore, if the stopper pin 39 is locked to the locking member 42, the traveling bogie 3
The rotational movement of the pallet mounting base 11 on the pallet mounting base 7 can be stopped. The pallet mounting base 11 is provided with a locking pin, which locks into a recess 32 formed in the pallet P.
Therefore, the positional relationship between the pallet mounting base 11 and the pallet P is positioned at a predetermined position. A pallet P is mounted on the pallet mounting base 11 via a cradle 38. A predetermined workpiece W is set on the pallet P at a predetermined position.

Since the setup indexing device 9 is configured as described above, the pallet P is mounted on the pallet mounting base ll with a forklift or the like, and the pallet mounting base 11 is rotated on the traveling trolley 37 by hand or with an appropriate rotation device. Then, the pallet mounting base 11 is rotated to a predetermined position with respect to the traveling trolley 37, and the locking member 42 of the pallet mounting base 11 is rotated to a predetermined position relative to the traveling trolley 37.
7, the pallet mounting base 11 is stopped at a predetermined position on the traveling carriage 37.

Next, the moving device 41 is driven to move the traveling carriage 37 toward the traveling path 5 side. Therefore, the traveling trolley 37 waits,
When the stacker crane 6 moves along the travel path 5 and comes to the setup station, the pallet P on the pallet loading stand ll is
is carried in by the forks of the stacker crane 6.

This FMS has a stacker crane 6 that reciprocates on a mole rail 18 on a travel path 5.

This stacker crane 6 has almost the same structure as the conventionally used one except for the structure of the fork.
A description of the same points as the conventional one, such as the hoisting device, will be omitted. The stacker crane 6 will be described below with reference to FIGS. 10 to 19. Fig. 10 is a schematic front view showing the stacker crane as a whole, Fig. 11 is a side view of Fig. 10, Fig. 12 is a perspective view schematically showing the stacker crane, and Fig. 13 is mounted on the stacker crane. Fig. 14 is a front view showing the lower part of the stacker crane, Fig. 15 is a front view showing the upper part of the stacker crane, and Fig. 16 is a cross section showing the transmission mechanism of the fork device of the stacker crane. 17 is a front view of the fork device, FIG. 18 is an explanatory view showing the fork device in an extended state, and FIG. 19 is an explanatory view showing the fork device in a contracted state.

As shown in FIGS. 10 and 11, the stacker crane 6 includes a running bogie 44 that reciprocates on a mole rail 18 provided with stoppers 6S at both ends of the running path 5, driven by a running device f57. It has a mast 45 erected in the front-rear direction, an upper saddle 46 hanging over the upper end of the mast 45, and a hoisting device 47 attached to the mast 45.

In order to prevent the upper saddle 4G of the stacker crane 6 from swinging, guide rollers 49 provided on the front, rear, left and right sides of the upper saddle 46 are guided by the upper rail 48 provided on the rack 4 (FIG. 12).

Furthermore, as shown in FIGS. 13 and 15, a fork device 50 is provided on the traveling cart 44 of the stacker crane 6, and is operable to extend and contract on the left and right sides of the traveling path 5, and for placing a baren (P) thereon. It is being

The fork device 50 is arranged on a fork base 51,
A carriage 52 is erected on the fork base 51 in the front-rear direction. Guide rollers 55 are rotatably attached to the upper part of these carriages 52, and chains 54 are respectively hung on the guide rollers 55. Also,
As shown in FIGS. 12 and 13, a guide roller 56 is rotatably attached to the upper part of the carriage 52, the guide roller 56 is guided on the mast 45, and the carriage 52 swings as the carriage 52 moves up and down. to prevent The chain 54 is wound up and rewound by a hoisting device 47, has one end attached to the upper saddle 46, and is guided by a guide roller 53 attached to the upper saddle 46.

Therefore, when the chain 54 is hoisted or rewound by the operation of the hoisting device 47, the carriage 52 moves up and down, and the fork mounting on the fork base 51 moves up and down. ] f50 will move in the vertical direction.

Next, the fork device 50 will be explained with particular reference to FIGS. 16 to 19. FIG. 16 is an explanatory diagram showing an outline of a fork device and a drive device for the fork device, FIG. 17 is a sectional view showing details of the fork device, FIG. 18 is an explanatory diagram showing the fork device in an extended state, and FIG. 19 FIG. 2 is an explanatory diagram showing a contracted state of the fork device. The fork device 50 is configured to be extendable and retractable in order to place the pallet P and carry it in and out. That is, the fork device 50 includes a proximal fork 58 fixed to a fork base 51, an intermediate fork 59 slidable on the proximal fork 58, a distal fork 60 slidable on the intermediate fork, and an intermediate fork 5.
It has a drive device 63 that telescopically slides the tip fork 9 and the tip fork 60. This fork mounting W50 is especially
A locking pin 67A and a support pin 67B are provided at both ends of the tip fork 60. The locking pin 67A engages with a recess 31 formed in the pallet P, and the support pin 67B supports the lower surface of the pallet to maintain the horizontal state of the pallet P. Locking pin 6 of tip fork 60
7A engages with the recess 31 of the pallet P,
The pallet P can be accurately and reliably positioned on the tip fork 60 of the stacker crane 6. Therefore,
When the fork device 50 moves up and down and extends and contracts in the stacker crane 6, the baren) P moves the tip of the fork 60.
The tip fork 60 can be moved to a predetermined position together with the distal fork 60 while maintaining an accurately and reliably positioned state without moving on top.

Furthermore, a forward chain receiving member 62F and a backward chain receiving member 62R are fixed to the base end fork 58, respectively. One end of the forward chain 64F is connected to the forward chain receiving member 62F, and one end of the forward chain 64F is connected to the backward chain receiving member 6.
One end of the rearward side chain 64R is fixed to each of the chains 2R and 2R. The forward chain 64F is hooked on the forward sprocket 65F provided at the tip of the intermediate fork 59, and the other end of the forward chain 64F is attached to the proximal end 66 of the tip fork 60.
It is fixed at F. In addition, the retreating side chain 64R has a retreating side sprocket 65 provided at the tip of the intermediate fork 59.
R, and the other end of the retreating side chain 64R is fixed to the tip side end 66R of the tip fork 60. Also,
The drive device 63 rotates the binion 70 rotatably attached to the fork base 51 through the transmission bag 271. Further, a rack 61 is fixed to the lower surface of the intermediate fork 59 so as to extend in the longitudinal direction. This rack 6
1 is engaged with a binion 70 attached to the fork base 51. Furthermore, guide grooves 72 and 73 are formed on both side surfaces of the intermediate fork 59. A guide roller 68 is rotatably attached to the distal fork 60, and a guide roller 69 is rotatably attached to the proximal fork 58. Since the guide roller 68 loosely fits into the guide groove 72 and guides the guide roller 68 through the guide groove 72, the tip fork 60 smoothly extends and contracts with respect to the intermediate fork 59. Further, since the guide roller 69 is loosely fitted into the guide groove 73 and is guided by the guide groove 73, the intermediate fork 59 can smoothly extend and contract with respect to the base end fork 58.

As described above, the fork assembly 250 is configured and operates as follows. First, as shown in FIG. 18, when extending the tip fork 60 of the fork device 50, the drive device 63 is rotationally driven in one direction, and the pinion 70 is rotated in the forward direction through the transmission device 71. . The rotational movement of the binion 70 moves the rack 61 forward in the longitudinal direction. When the rack 61 moves forward in the longitudinal direction, the intermediate fork 59 moves to the forward side, that is, to the side where it extends relative to the proximal fork 58. When the intermediate fork 59 extends, the sprocket 65F attached to the intermediate fork 59 is rotated by the chain 64F, thereby increasing the distance between the forward chain receiving member 62F and the sprocket 65F.
The distance between the base end portion 66F and the base end portion 66F becomes shorter. Therefore, the tip fork 60 moves toward the forward side, that is, the side where it extends, relative to the intermediate fork 59. Therefore, the fork device 50 will extend the tip fork 60.

Further, as shown in FIG. 19, when retracting the tip fork 60 of the fork device 50, the drive device 63 is rotated in the opposite direction to the above, and the pinion 70 is rotated in the backward direction through the transmission device 71. Exercise. pinion 7
The 00 rotation movement causes the rack 61 to move toward the rearward side in the longitudinal direction. When the rack 61 moves to the rearward side in the longitudinal direction, the intermediate fork 59 moves to the rearward side, that is, the proximal fork 5
Move to the side that pulls in against 8. The retraction of the intermediate fork 59 is performed by the sprocket 6 attached to the intermediate fork 59.
5R is rotated by the chain 64R, thereby increasing the distance between the retreating side chain receiving member 62R and the sprocket 65R.
The distance to 6R becomes shorter. Therefore, the tip fork 60 moves toward the retreating side, that is, the retracting side, relative to the intermediate fork 59.

Therefore, the fork device 50 will retract the tip fork 60.

Therefore, if the stacker crane 6 is provided with a fork device 50 that extends and contracts with respect to one side of the traveling path 5 and a fork device 50 that extends and contracts with respect to the other side, the stacker crane 6 can move along the traveling path 5. A fork device 50 is provided that can extend and retract from both sides.

Alternatively, for the stacker crane 6, instead of providing the two telescoping fork devices 50, a fork device that rotates on the fork base 51 (not shown) may be provided, so that one fork device 50 can be used not only in both directions. , it is also possible to orient the fork device in a desired direction.

Therefore, the stacker crane 6 moves the fork device 50 up and down with the hoisting bag 247, and also moves the fork device 50 up and down the traveling path 5.
By having a fork device 50 that can extend and contract in the left-right direction, the tip fork 60 of the fork device 50 can be extended to below the baren (P) located at a predetermined location,
Next, when the distal fork 60 is slightly raised, the locking pin 67A of the distal fork 60 engages with the four parts 31 of the barrel P, and the lower surface of the barrel P is placed on the support pin 67B. If the tip fork 60 is contracted in this state, the barre 7)P can be positioned on the fork base 51. Next, the traveling device 57 drives the traveling cart 44 of the stacker crane 6, and the controller commands the traveling device 57 to move the traveling truck 44 to a predetermined position, such as the setup indexing device 9, various processing I
The intermediate transfer device 7, the rust prevention treatment device 10, and the fluid spraying device 11, 2.3 are moved to the device 12 or the shelf 19 of the rack 4. The fork device t50 is operated again to extend the tip fork 60 and move it to the location where the pallet P is placed. When the distal fork 60 has extended to the mounting position of the barre 7) P, if the distal fork 60 is moved slightly downward, the locking pin 67A of the distal fork 60 that was engaged with the recess 31 of the barre 7) P will be released. break away. In this state, the tip fork 60 is retracted, the fork assembly 250 is contracted to the state shown in FIG. 19, and the stacker crane 6 is moved to the next target location.

Therefore, this stacker crane 6 carries the pallet P received by the setup indexing device 9 to the anti-rust treatment bag W10, the fluid spraying device 12, the rack 4, or the intermediate transfer device 7 of the various processing machines 1, 2.3. can perform the functions of Alternatively, the stacker crane 6 can be used for various processing machines 1.
2. Receive the pallet P from the intermediate transfer device 7 which received the pallet P carried out from 3) and carry it to the intermediate transfer device 7 of another processing machine, or carry it out to the rack 4 or the setup indexing device 9. able to perform a function. (Hereinafter, this page margin) In this FMS, the rust prevention treatment device 10 is installed at a rust prevention station provided in the pallet traveling system in order to apply rust prevention treatment to the workpiece W. Although the anti-corrosion stationary run may be installed anywhere in the pallet traveling system, in the figure, two units are installed at the two openings 20 of the tank 4. This rust prevention treatment apparatus 10 will be explained with particular reference to FIGS. 2, 20, and 21. Figure 20 is a front view of the rust prevention treatment equipment that can be used for this FMS, and Figure 21 is the
FIG.

This rust prevention treatment device 10 has a pallet support member 23 that moves up and down guided by a support 4P installed in the tank 4, and the pallet support member 23 holds the pallet P from the stacker crane 6 in a predetermined position. It is provided with a locking means that engages with a locking means provided on the pallet P so that the pallet P can be maintained. A frame 4F is fixed to the upper part of the support column 4P, and a drive device 10D that moves the pallet support member 23 up and down is set on the frame 4F. Also, rack 4
At the bottom of the tank, a tank IOT with an upper opening is placed.
The tank 10T contains a solution for rust prevention treatment. For example, one tank IOT contains a rust remover solution to remove rust that has formed on the workpiece W, and the other tank IOT contains a rust preventive solution that prevents rust from forming on the workpiece W. ing. Further, in order to promote the rust removing effect, it is preferable to provide a means for applying ultrasonic vibration to the solution, for example, in the tank 10T containing the rust removing solution. The guide roller 23G of the pallet support member 23 is guided by guide means provided on the support post 4P of the rust prevention station and is moved up and down.

In addition, in this FMS, fluid spraying is performed by the device 12 to remove deposits such as machining fluid, foreign matter, and dust attached to the surface of the workpiece W.
It is installed in the pallet travel system to spray and eliminate fluids such as high-pressure air or high-temperature water. The fluid spraying device 12 may be provided at any location, but in the figure, it is provided at the opening 20 of the rack 4 next to the rust prevention treatment device 10. This fluid spraying device 12 is used to clean the workpiece W carried into the FMS sufficiently to perform anti-corrosion treatment or electric discharge machining, and uses means for blowing out fluid such as high-pressure air or high-temperature water. Therefore, it is preferable to provide a shutter means for closing the opening 20 in order to prevent the fluid from scattering. The shunter means is controlled to operate according to instructions from a controller. When the pallet P is carried from the stacker crane 6 into the fluid spraying device 12, the shunter means is activated to open the shank, and the pallet P is placed on the pallet support member 25P provided in the fluid spraying device 12. Ru. This pallet support member 25P is provided with a locking means that engages with a locking means provided on the pallet P so that the pallet P can maintain a predetermined positioning state. When the pallet P is placed R on the pallet support member 25P, the shutter is closed, and then fluid is blown out from the fluid blowing nozzle 12N of the device 12, and the workpiece W is cleaned. When the cleaning process for the workpiece W is completed, the shutter opens again and the stacker crane 6
The pallet P is carried out from the pallet support member 25P.

As mentioned above, the rust prevention treatment device 10 and the fluid spraying device 1
2 is configured as an example, but the action of the device 10.12 is, for example, to drive the bar (P) carried from the stacker crane 6 to the pallet support member 23 of the rust prevention treatment device 10 by actuating the drive device flOD. The rust removing solution is poured into the tank IOT to remove the rust generated on the workpiece W.Next, the pallet P is moved from the rust prevention treatment device 10 to the fluid spraying device f12 by the stacker crane 6, and the fluid spraying The device 12 blows high-pressure air onto the surface of the workpiece W to blow away the mackerel removal solution attached to the surface. Again, the stacker crane 6 moves the pallet P from the device 12 to the anti-corrosion treatment bag 210 to remove the liquid. The workpiece W is put into the tank IOT containing the antirust solution of the rust treatment equipment IO, and the workpiece W is subjected to the antirust treatment.
When performing electric discharge machining immediately after the rust prevention treatment for the workpiece, the pallet P is moved by the stacker crane 6 from the rust prevention treatment device IO to the fluid spraying device 12, and the fluid spray is applied to the surface of the workpiece W under high pressure. Air is blown to blow away the antirust solution adhering to the surface, and the stacker crane 6 transports it to the intermediate transfer device 7 of the processing machine group. Alternatively, after the anti-rust treatment, the pallet P on which the anti-rust treated workpiece W is placed is stored on the shelf 19 of the rack 4 by the stacker crane 6, or the processing 1112.
3.

Next, the wire electric discharge machine 1 among the group of processing machines in this FMS will be explained with reference to FIGS. 22 to 31. Fig. 22 is a side view of the processing table of the wire electric discharge machine, Fig. 23 is a front view of Fig. 22, Fig. 24 is a plan view of the processing table of the wire electric discharge machine, and Fig. 25 is the 24 26 is a side view of the processing table of the wire electric discharge machine, FIG. 27 is a partial sectional view of the clamp device, FIG. 28 is a perspective view of the machining tank cover device, and FIG. The figure is number 28
30 is a plan view of the processing tank cover device, and FIG. 31 is a 30th side view.

In this FMS, the wire electric discharge machine 1 includes an automatic wire electrode supply device, a wire electrode exchanger, and a wire electrode exchanger, as in the conventional one.
11 device, a workpiece removal device (FIGS. 44 and 45), etc., for automatically taking out the core, that is, the workpiece, from the workpiece. The wire electric discharge machine 1 in this FMS is different from the conventional one except for the mechanism for loading and unloading the pallet P onto the processing table 75, the mechanism for fixing the barn P to the processing table 75, and the processing tank 76. Since they have almost the same configuration, the above-mentioned differences will be explained in particular.

The machining operation of this wire electric discharge machine 1 is performed by, for example, the 56th
It can be done as shown in the figure. Wire electrical discharge machining Il
When preparations for machining 1 are completed, the controller issues a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 starts machining the start hole accommodated in the shelf 19 of the wire electrical discharge machine 1 and the rack 4. A pallet P is set in the wire electric discharge machine 1 in which a pallet P is set with a finished workpiece W, or a pallet P is set with a workpiece W whose start hole has been machined in the line-in electric discharge machining 112. Then, the wire electric discharge machining Ill is activated to perform electric discharge machining on the workpiece W into a predetermined machining shape. When the wire electrical discharge machining is completed on the workpiece W, the pallet P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or placed on the base, that is, the setup station run 36.
will be transported to.

In wire electrical discharge machining 411, the workpiece W is each baren)
P is set in advance, and the pallet P is intermediately transferred onto a processing table 75 fixed to a jig base 74 that is electrically insulated on an X-Y table! It is automatically carried in and out by W7.

This wire cutting machine III includes a filtration bag W21 for filtering the machining fluid used during electrical discharge machining, and a pallet press for carrying and setting the baren) P from the intermediate transfer device 7 to the machining table 75. A device 77, a clamp device 78 provided on the processing table 75 for fixing the pallet P on the processing table 75, and an openable/closable device provided in the processing tank 76 attached to the jig base 74 to prevent scattering of processing fluid. A processing tank cover device 79 with a slide cover 80 serving as a door is provided. A jig base 74 is fixed on the X-y table in the wire electric discharge machine 1 in an electrically disconnected state,
A processing tank 76 is attached to the jig base 74, and a processing tank cover device 79 is provided inside the processing tank 76. Furthermore, a pair of processing tables 75 serving as position reference means are fixed to the upper surface of the jig base 74. These processing tables 75
The clamp devices W7 are located on both sides of the jig base 74.
8 and a pallet pressing device 277 are attached.

The processing table 75 in this wire electric discharge machine 1 is
This will be explained with reference to FIGS. The processing table 75 extends corresponding to both ends of the pallet P and is fixed to the jig base 74 so as to be able to support both ends of the pallet P. The mounting structure between the processing table 75 and the jig base 74 is not particularly limited. The processing table 75 is
It is configured to move along with the horizontal movement of a table that is servo-moved by an NC device, and its positional relationship with respect to the travel path along which the wire electrode WE travels is determined in advance. A guide roller 83A is provided at the entrance/exit portion of the processing table 75.

The connecting bars 82 on both sides, which are attached to the processing table 75 so as to be able to move up and down with respect to the processing table 75, have a large number of guide rollers 83 facing both sides of the pallet P in order to guide the pallet P when the baren P is pressed. are fixed and rotatable. These guide rollers 83 function to smoothly move the pallet P with respect to the processing table 75. That is, the connecting bar 82 has guides 8 provided at both ends.
6A and can be moved in the vertical direction by the operation of cylinder 78G. Furthermore, a reference metal fitting 81 that is a positioning member is set at the upper end of the processing table 75.

The upper surface of the reference fitting 81 functions as a reference surface 81S.

When loading and unloading the pallet P, the connecting bar 82 moves upward by the operation of the cylinder 78C, and the upper surface of the guide roller 83 protrudes above the reference surface 81S of the reference fitting 81 to guide the pallet P when loading and unloading. .

Further, on each reference surface 29 and 30 of the reference fittings 29 and 30 attached to the pallet P, pallet pressing devices 77 and 77A are installed.
Positioning stopper 84.8 provided on the processing table 75 by
Pressed to 7. In this wire electrical discharge machining, the pallet pressing device 77 that presses the baren (P) to a predetermined position in the forward direction of the processing table 75 presses the reference surface 29K of the pallet P against the positioning stopper 84 provided on the processing table 75. There are cylinders 86 provided on the processing table 75 on both sides of the table 75. In addition, the processing table 7
The pallet pressing device ITA presses the reference surface 30K of the side surface of the pallet P against the positioning stopper 87 provided on the processing table 75.
A cylinder 8 provided on the processing table 75 in the front and back direction of the processing table 75
It has 8. These cylinders 86, 88 are double-acting cylinders, in which fluid chambers are formed on both sides of the piston that reciprocates within the cylinder, and by introducing fluid into the fluid chamber on either side, the piston moves 7. Ring 86.
Move back and forth within 88.

The front end of the pallet P is moved to the positioning stopper 8 of the processing table 75.
4, one end of a cylinder 86 is rotatably attached to the processing table 75 at a pivot point 86P, and a pressing arm 91 is attached to the end of a piston loft 90 fixed to a piston in the cylinder 86. is mounted rotatably around a rotating shaft 65. Further, the pressing arm 91 is rotatably attached to a rotary wheel 66 attached to the processing table 75. Therefore, when the piston rod 90 extends from the cylinder 86, the end 94 of the pressing arm 91 pivots upward around the rotating shaft 66, as shown by the solid line in FIG. 26, and presses the end of the barrel P. I will do it. On the other hand, if the piston rod 90 is retracted into the cylinder 86, as shown by the chain line in FIG.
The end portion 94 pivots downward around the rotating shaft 66, and the pallet P can be carried in and out.

In addition, in the pallet pressing device 77A that presses the side end of the baren) P against the positioning stopper 87 of the processing table 75,
Piston loft 8 fixed to piston in cylinder 88
The end of the pallet P is bottomed so that it can come into contact with one side of the pallet P. Therefore, when the cylinder 88 is actuated and the piston rod 89 starts to extend, the tip end surface of the piston rod 89 comes into contact with the side surface of the pallet P, presses the pallet P in the side direction, and presses the reference metal fitting 300 provided on the side surface of the pallet P. Reference plane 3
By bringing the 0K into contact with a positioning stopper 87 provided on the processing table 75, the barrel +-p can be positioned at a predetermined position on the side.

Also, the finished surface of the lower surface of the pallet P, that is, the reference surface 28, is brought into contact with the reference surface 813 of the reference fitting 81 of the processing table 75,
When setting the position of the cylinder P on the processing table 75, move the cylinder 78C in the opposite direction to the above and move the connecting bar 82 downward so that the upper surface of the guide roller 83 is aligned with the reference surface of the reference fitting 81. 815 so that the guide roller 83 does not become an obstacle to positioning. Therefore,
The finished surface of the lower surface of the pallet P, that is, the reference surface 28, comes into contact with the reference surface 81S of the reference fitting 81, so that the baren +-p is accurately and reliably positioned in a predetermined height direction with respect to the processing table 75. That will happen.

Further, in this wire electrical discharge machine 1, the pallet P is mounted on the processing table 75 of the wire electrical discharge machine using a clamping device 78.
is fixed by a plurality of clamps 85, and has edges on both sides pressed by the clamps 85. Regarding this clamping device 78, in particular, FIG.
It is shown in FIGS. 24, 26 and 27. The clamp devices 78 are attached to the sides of each processing table 75 via brackets 78B, and have the function of fixing the pallet P on the processing table 75 by being positioned opposite to each other on both sides of the pallet P. . The clamp device 78 is arranged on the side of the central part of the connecting bar 82 and is attached to the bracket 78B.
A cylinder 78C is fixed to the processing table 75, a piston door 8R1 is fixed to a piston 78P that moves up and down by the operation of the cylinder 78C, and the piston door 8R is attached to the upper end of the piston door 8R and is located above the connecting bar 82. It has a clamp 85.

Further, the clamping device 78 is provided with a pallet fixing sensor and a pallet release sensor (not shown) in order to detect whether the cylinder 78C is actuated to fix or release the pallet P on the processing table 75. . The upper end of the piston door 8R is a through hole 8 provided in the clamp 85.
The clamp 85 is fixed to the piston door 8R by passing through the piston rod 5H and screwing a nut 85N into a threaded portion formed at the upper end of the piston rod 78R.

Therefore, when fluid is introduced into the cylinder 78C through the fluid passage, the piston 78P moves downward and the piston door 8R moves downward. Therefore, the clamp 85 fixed to the piston door 8R moves downward. The downward movement of the clamp 85 presses the pallet P onto the processing table 75 and fixes the pallet P to the processing table 75. Further, moving the clamp 85 of the clamp device 78 upward to release the fixation of the pallet P to the processing table 75 can be achieved by operating the cylinder 78C in the opposite direction.

In this wire electric discharge machine 1, a machining tank cover device 7
9 is particularly shown in FIGS. 28, 29, 30 and 31.

This processing tank cover device! 79 is a machining tank 7 attached to a jig base 74 on the X-Y table of the wire electric discharge machine 1.
6, and functions to prevent machining fluid, machining debris, etc. from scattering when wire electrical discharge machining is performed on a workpiece W, or to function as a guard for safety. Processing tank cover 279
is the cover 9 attached to the air cylinder 92 and the processing tank 76.
3. It is composed of a manual opening/closing cover 94C1 arranged on the side surface of the cover 93 and pivotally connected to the cover 93, and a slide cover 80 that is slidable with respect to the cover 93 and constitutes an entrance/exit for a barrel (P). Processing tank cover device 79
is equipped with an air cylinder 92 which is an actuator that slides a slide cover 80 for opening and closing the entrance/exit of the valley/ ) P in which the workpiece W is set. Air cylinder 92 is a double-acting cylinder, and the cylinder is made of non-magnetic material. A piston 95 made of a magnetic material is disposed within the cylinder of the air cylinder 92, and the piston 95 reciprocates within the air cylinder 92 by supplying air to either side of the piston 95 within the air cylinder 92. It is something. The slide cover 80 of the processing tank cover device 79 is located on the surface facing the pallet loading/unloading side of the intermediate transfer device 7. Slide cover 8
Regarding the reciprocating mechanism of 0, the processing tank cover device 79
An air cylinder 92 and a piston 95 that reciprocates within the air cylinder 92 are arranged below the air cylinder 92, and the reciprocating movement of the piston 95 causes air to be supplied to either one of the air passages 97 provided at both ends of the air cylinder 92. This is achieved by being A cover guide 96 is fixed to the cover 93, and a guide roller 98 is attached to the cover kite 96. Further, a guide rail 99 is fixed to the slide cover 80, and a guide roller 98 is fitted into the guide rail 99. Furthermore, a bracket 80B is fixed to the lower end of the slide cover 80, and a bracket 80M made of a magnet is fixed to the end of the bracket 80B. This bracket 8OB includes a piston 95 made of magnetic material that reciprocates inside an air cylinder 92.
and moves back and forth along the outer surface of the air cylinder 92. Therefore, when the piston 95 reciprocates within the cylinder, the bracket 80M adsorbing the piston 95
moves in accordance with the movement of piston 95. Bracket 8
If 0M moves back and forth, Prada 7) 80B moves back and forth. The reciprocating movement of the bracket 80B is performed using the slide cover 8.
0 is guided by a guide roller 98 provided on a cover guide 96 and moves back and forth.

In this processing tank cover device 79, the slide cover 8
0, an open end sensor 80F detects the open state of the slide cover 80 and a closed end sensor 80E detects the closed state of the slide cover 80. The open end sensor 80F and the closed end sensor 80E can be provided on the cover 93, the slide cover 80, or the air cylinder 92 as shown. Therefore, the slide cover 80 is detected by the open end sensor 80F.
detects that it is in an open state, and upon receiving the detection signal, the controller controls to move the bullet P located in the intermediate transfer device 7 onto the processing table 75 of the wire electric discharge machining 1111, or Control is carried out to move the barrel P on the processing table 75 from the processing table 75 to the intermediate transfer device 7. Further, the closed state of the slide cover 80 is detected by the closed end sensor 80E, and upon receiving the detection signal, the controller performs wire electrical discharge machining I! 1 is controlled to perform the operation.

Furthermore, regarding the wire electric discharge machine 1 in the FMS according to the present invention, in particular, the finish formed on the reference surface 813, which is the upper surface of the reference metal fitting 81, which is the positioning member disposed on the processing table 75, and the back surface of the barren l-P. Reference plane 28 which is a plane
, the reference surface 29F of the reference metal fitting 29 placed on the front end surface of the pallet P, the reference surface 30K of the reference metal fitting 30 placed on the side end surface of the pallet P, and the positioning stopper, that is, the reference metal fitting 84.87 provided on the processing table 75. Formed reference plane 84387
In order to clean S, a reference surface cleaning device is provided.

This reference surface cleaning device can be configured with a water jet nozzle that sprays water onto the cleaning surface and an air spray nozzle that sprays air to eliminate minute machining debris generated during wire electrical discharge machining by the wire electrical discharge machine 1. do. Therefore, each reference surface can be cleaned every time the pallet P is set or at every predetermined period, so the setting of the pallet P with respect to the processing table 75 is always reliable and does not adversely affect processing accuracy.

As described above, the device for positioning the ball P on the processing table 75 in this wire electric discharge machining Ill is configured and can operate as follows. That is, wire electrical discharge machining I
Slide cover 8 of processing tank cover device 79 provided in ll
0 is released, the cylinder 78C of the clamp device 78 is activated to raise the clamp 85, and the cylinder 86A is activated.
is activated to raise the connecting bar 82. The rise of the connecting bar 82 causes the guide roller 83 to rise. In this state, the processing table 75 is moved by the lifter 100 of the intermediate transfer device 7.
Send the pallet P upward. At this time, the guide roller 83
It is preferable that the upper surface level is the same level as the upper surface level of each roller provided on the lifter 100 of the intermediate transfer device W7, which will be described later.After that, the push-pull arm 101 of the lifter 100 is operated and moved forward, and the baren) P Processing table 7
Then, the intermediate transfer device 7's glue lid 100 is lowered slightly, and the operating pin 170 provided on the push-pull-out arm 101 separates from the recess 33 formed in the pallet P. Then, the push-pull-out arm 101 is Retract.

At this time, the solenoid valve of the cylinder 86A is set to the neutral position by a command from the controller, and the pallet P is lowered by its own weight, and the connecting bar 82 and the guide roller 83 are lowered by the load of the pallet P. As a result, the lower surface of the pallet P comes into contact with the reference surface 81S of the reference fitting 81 of the processing table 75.

In this state, the pallet pressing device 77 is activated to rotate the pressing arm 91 around the rotating shaft 66, and as shown by the solid line in FIG. 22, the pressing arm 91 presses the rear end of the barrel +-p. and press it against the reference surface 84S of the positioning stopper 84 of the processing table 74.

The front end surface of the pallet P is set in position by the action of the pallet pressing device 277, and then the cylinder 88 of the pallet pressing device 77A is actuated to push the side end surface of the pallet P laterally with the piston rod 89. Machining table 75 for end face
The pallet P is pressed against the reference surface 30K of the reference fitting 30 provided on the table 75, and the side end surface of the pallet P is positioned on the processing table 75. After positioning the baren (P) on the processing table 75 in this way, the clamp device 78 is activated to press the barn (P) so that the reference surface 28 on the lower surface of the pallet P is aligned with the reference surface 815 of the reference fitting 81 of the processing table 75. If the pallet P is fixed on the processing table 75 by contacting the pallet P in a pressed state, the pallet P can be set at a predetermined processing position on the processing table 75. Of course, all of these operating steps are configured to input each detection signal of each sensor to the controller, and based on the input signal, the controller issues an operating signal for the next step to operate a predetermined device. . Next, when the position setting of the pallet P on the processing table 75 is completed, the processing tank cover device 7
The slide cover 80 of 9 slides to close the loading/unloading entrance of barre 7)P.

In this state, wire electrical discharge machining l! 1 is activated and the automatic wire feeding device inserts the wire into the workpiece W preset on the pallet P, and then wire electrical discharge machining is started. Electric discharge machining is performed on the workpiece W, a predetermined machining shape is machined on the workpiece W, and when the electric discharge machining is completed, the automatic wire feeding device cuts the wire, and then the machining tank cover device 79 is activated. The slide cover 80 slides to open the loading/unloading port for the pallet P. Next, the pallet pressing device 7
7 in the opposite direction to move the pressing arm 91 backward as shown by the chain line in FIG.
A is made inactive to eliminate the pressing force of the piston rod 89. Furthermore, the clamp device 78 is operated to clamp the clamp 8.
5 is raised, and the guide roller 83 is raised so that the pallet P is mounted on the guide roller 83. Then,
The intermediate transfer device 7 operates and transfers the pallet P to the processing table 75.
from there to the intermediate transfer device 7.

Further, in the wire electric discharge machine 1, when wire electric discharge machining is performed on the workpiece W, machining waste separated from the workpiece W or a product machined into a machined shape is generated. Unless these workpieces are automatically removed during electrical discharge machining in the wire electrical discharge machine 1, subsequent electrical discharge machining cannot be performed. Here, an example of a work piece removing device will be described with reference to FIGS. 44 and 45. FIG. 44 is a schematic front view showing an example of a work piece removing device attached to a wire electric discharge machine, and FIG. 45 is a side view of FIG. 44. This work piece removing device 130
The upper mounting member 1 is attached to the hend IH of the wire electric discharge machine 1.
31 and a lower mounting member 132. A dog 133 is attached to the upper mounting member 131 to pass through and guide a pole rod 135 that moves up and down. A ball spline groove 141 and a thread 142 are formed in this pole thread opening 7 door 135L. The lower mounting member 132 is provided with a sliding member 62 that engages with the ball spline groove 141, is fixed in the rotational direction, and slides in the vertical direction. A gear 145 is fixed to this sliding member 62. A gear 146 meshes with the gear 145 and rotates around the outer periphery of the gear 145 over 270 degrees.

This gear 146 is fixed to a rotating shaft 148 that is rotatably supported by a support member 147 attached to the lower mounting member 132. The rotation of the 0-rotating shaft 148 is performed by the operation of a servo motor 137 that is a second servo motor. be exposed. Therefore, when the rotating shaft 14B is rotated by the servo motor 137, the gear 146 meshes with the gear 145.
The pole rod 135 is rotated by rotating the gear 145 or rotating the gear 145 by rotating the gear 146 .

Further, a pole screw 143 that engages with a screw 142 is attached to the lower attachment member 132.

A nut 149 is fixed to the Nand rotation support holder 53 which is attached to the lower mounting member 132 and fixed to the sliding member 62, and a worm wheel 144 is fixed to the nut 149 by meshing with the screw 141. The worm wheel 144 is rotated by the operation of a servo motor 136, which is a first servo motor attached to the lower mounting member 132. Therefore, when the worm wheel 144 is rotated by the operation of the servo motor 136, the sliding member 62 moves the pole rod 135 up and down. Furthermore, the servo motor 137 and the servo motor 136 operate, and the gear 1
45 and the worm wheel 144 rotate in synchronization, their rotational movements cancel each other out, resulting in a stopped state, and only the pole rod 135 rotates.

Furthermore, at the lower end of the pole screw loft 135,! A magnetic holder case 138 is attached. A pole screw 150 is attached to the electromagnetic holder case 138, and a pole screw rod '139, which is a second pole screw rod, is provided with a stud 151 that engages with the pole screw 150, and extends through the electromagnetic holder case 138. A ball spline 152 is formed on this pole thread rod 139. Furthermore, a servo motor 153, which is a third servo motor, is provided in the magnetic holder case 138 in order to rotate the worm wheel attached to the pole head 150. Therefore, when the servo motor 153 operates and the worm wheel of the pole screw I50 rotates, the 13 pole screw rods reciprocate horizontally with respect to the electromagnetic holder case 138. An @magnetic holder 140 is attached to the tip of the pole rod 139, and a magnet such as an electromagnet is attached to the IT magnetic holder 140.

Since the work piece removing device 130 according to the present invention is configured as described above, the pole neck rod 139 attached to the lower end of the pole neck rod 135 that moves up and down and rotates the pole neck rod 135. The pole neck rod 139 itself can move horizontally with respect to the pole neck loft 135, so it can be attached to the tip of the pole neck opening 7 door 139. The electromagnetic holder 140 can now move in three-dimensional space.

Therefore, the t-magnetic holder 14 of this work piece removing device 130
Installed on 0! If the magnet is placed at the bottom of the tank so as to protrude from the workpiece removing device 130, it can come into contact with the upper surface of the workpiece W positioned at the ball P of the wire electric discharge machine I. become able to. Therefore, if the workpiece removal device 130 is activated to bring the electromagnet into contact with the workpiece and attract the workpiece immediately before the workpiece is separated from the workpiece W according to a command from the controller, the workpiece will be removed. The workpiece adsorbed to the tF61 stone 140 can then be moved upward and stored in a predetermined workpiece storage location without falling, and the workpiece separated from the workpiece W will not damage the machined surface. , the work piece can be eliminated.

Next, the small and large electrical discharge machine 2 in the processing machine group will be explained with reference to FIGS. 32 to 36.

Fig. 32 is a plan view of the small and large electrical discharge machine, Fig. 33 is a side view of the pipe electrode exchange device, and Fig. 34 is the line mx- in Fig. 32.
35 is a plan view of the index table, and FIG. 36 is a sectional view taken along line BB in FIG. 35.

Compared to the wire electrical discharge machine 1 described above, this small and large electrical discharge machine 2 is capable of performing small and large holes and wire electrical discharge machining on a workpiece W that has been set in advance on the barrel l-P using a pipe electrode PE. It is for machining a start hole for penetrating the wire electrode WE, and the device for setting the position of the baren (P) on the machining table and the machining tank cover device are the same as the wire electric discharge machine 1 described above. can be used.

Therefore, a redundant explanation of the structure and operation of the device X will be omitted here, and only the pipe electrode PE exchanging device and the pipe electrode PE setting device will be explained. Further, although it is possible to use the pipe electrode exchange device disclosed in the above-mentioned Japanese Unexamined Patent Publication No. 1-246021 for this FMS, the pipe electrode exchange device described below is preferable.

The machining operation of this fine electric discharge machine 2 can be performed as shown in FIG. 55, for example. When the small hole electrical discharge machine 2 is ready for machining, the controller issues a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 cuts the wire housed in the small hole electrical discharge machining 112 wA19 of the rack 4. A pallet P loaded with a workpiece W to be machined into a predetermined shape by electrical discharge machining is carried into the small and large electrical discharge machine 2 for machining a start hole.The pallet P is set in the small and large electrical discharge machine 2. Then, the small and large electrical discharge machine 2 is operated to perform electrical discharge machining of a small hole at a predetermined location on the workpiece W.

When the electric discharge machining of the start hole on the workpiece W is completed, the barn P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or placed on the wire electric discharge machine 1. will be transported to.

This fine and large electric discharge machining 112 is equipped with a pipe electrode exchange device 2C. This pipe electrode exchange device 2C can use a conventionally used pipe electrode PE,
An index table 102 with one index confirmation notch 102C for indexing a large number of pipe electrodes PH.
and a chuck pallet supporting the pipe electrode PR) 10
5. This chuck pallet 105 is attached to the bottom of the index table 102 so that it can be replaced. In the chuck pallet 105, support holes 103 for supporting the chuck portion PEC of the pipe electrode PH are formed at equal distances in the circumferential direction on a concentric circle from the rotation center point. The support hole 103 has a cutout groove 104 that opens outward in the radial direction to allow the pipe electrode PE to enter and exit. The notch groove 104 of the support hole 103 is formed on the chuck pallet 1.
The distribution from the line connecting the center point of 05 and the center point of the support hole 103 is determined by the state. The diameter of the support hole 103 is larger than the outer diameter of the cap nut PEN of the pipe electrode PE. The chuck pallet 105 has a mounting reference hole 10 in the center thereof for attaching the chuck pallet 105 to the index table 102.
Equally divided tightening holes 106 for tightening the chuck pallet 105 to the index table 102 are provided on the outer circumference of 8.
(four in the figure), and an indexing origin confirmation hole 107 for confirming the indexing origin of the pipe electrode PE, and the center point of the chunk pallet 105 and the support hole 1.
One tightening hole 106 and one indexing origin confirmation hole 107 are located on the line connecting the center points of 03. This indexing origin confirmation hole 107 is configured so that the indexing origin can be confirmed by matching with the indexing confirmation notch 102C of the index table 102.

This pipe electrode exchange device 2C has a chuck pallet 1
It has an indexing mechanism that indexes 05.

The indexing mechanism is composed of a stepping motor 109 and a reduction transmission device 110 installed between the stepping motor 109 and the chuck pallet 105.

Furthermore, the small hole electric discharge machining 8S12 includes a mechanism for inserting the electrode holder of the pipe electrode PR supported in the support hole 103 of the chuck pallet 105 into the main shaft 111, and the support hole 1.
It has a mechanism for moving from the standby position of 03 to the center position of the main shaft 111 of fine and large electric discharge machining 112. This main shaft 11
The center of 1 is the center of the pipe electrode PE and is the center point during processing. The insertion mechanism includes a vertically movable cylinder 112 that vertically moves a chuck pallet 105 provided in the knob electrode exchange device 2C. Further, a moving mechanism for moving the chunk pallet 105 to the center position of the main shaft 111 includes a back-and-forth moving cylinder 113. This back-and-forth movement cylinder 113 has the function of moving the indexed pipe electrode PE to the center position of the main shaft 111 at the forward end, and retracting the chuck pallet 105 to a standby position at the backward end. Furthermore, this pipe electrode exchange device 2C has means for checking the indexing origin of the chuck pallet 105 and means for checking whether or not the pipe electrode PR is present in the support hole 103. The indexing origin confirmation method is
It consists of a photoelectric switch 114 attached to a frame 116 that supports a stepping motor 109. Also,
The presence/absence checking means includes a photoelectric switch 115 that is attached to a frame 116 that supports the stepping motor 109 and that detects whether or not the pipe electrode PE is supported in the support hole 103 facing the center of the main shaft 111.

Since this pipe electrode exchange device 2C is configured as described above, it can operate as follows. Small and large electrical discharge machining 11
When attaching the pipe electrode PE to the main shaft center 111 of 2, the stepping motor 109 is operated to rotate the chuck barre 105, and the photoelectric switch 114, which is the indexing origin confirmation means, is used to attach the pipe electrode PE to the support hole that supports the pipe electrode PE. 10
Figure out 3. Next, the support hole 10 facing the spindle center 111 is opened by a photoelectric switch 115 serving as a presence/absence confirmation means.
3, and if the pipe electrode PE exists in the support hole 103, the pipe electrode PE is moved to the main axis center 111 by the operation of the forward and backward movement cylinder 113.
move it to the position. Since a pipe electrode holder is provided on the main shaft of the small hole electric discharge machine 2, the vertical motion cylinder 1
12 to raise the indexed knob electrode PE of the chuck pallet 105 and insert it into the pipe electrode holder 2H of the main shaft 111. When the pipe electrode PE is inserted into the pipe electrode holder 2H, the pipe electrode PE is automatically held in the pipe electrode holder 2H.

After inserting and fixing the pipe electrode PE into the pipe electrode holder 2H, the vertical movement cylinder 112 is operated to lower the chuck pallet 105, and then the chuck pallet 105 is lowered.
is moved back to the standby position of the pipe electrode exchange bag f2c by operating the back and forth movement cylinder 113.

In addition, when the pipe electrode PE is worn out by machining a start hole on the workpiece W, when removing the worn out pipe electrode PE from the main shaft 111 of the small hole electric discharge machine 2, a chuck pallet is used. 105 support holes 10
3, confirm that the pipe electrode PR is not present using the photoelectric switch 115, which is a presence confirmation means, and move the support hole 103 to the center of the main shaft 111 to align the center of the support hole 103 with the center of the main shaft 111. , the exhausted pipe electrode PE is received in the support hole 103. At this time, the electrode holder P
The pipe electrode PE remaining in EH is passed through the cutout groove 104 of the support hole 103, and the support hole 103 is positioned below the pipe electrode PE. Next, the electrode holder PE of the main shaft 111
Release the holding state of H and insert the electrode holder PEH into the support hole 10.
Then, the chuck pallet 105 of the pipe electrode exchange device 2C is moved back to the standby position.

In this small and large electrical discharge machine 2, the above-mentioned pipe electrode exchange operation is automatically repeated, and a large number of pipe electrodes PE loaded on the chuck pallet 105 are replaced with consumable pipe electrodes PE.
By replacing the pipe electrode PE in the small and large electrical discharge machine 2 with a new one, it is possible to automatically and continuously perform small and large electrical discharge machining on the workpiece W.

Note that the automatic attachment and detachment mechanism for the pipe electrode holder and pipe electrode PE in the fine and large electrical discharge machine 2 can utilize the conventional pipe electrode exchange operation, but for example, the mechanism disclosed in Japanese Utility Model Application Publication No. 1-143321 It is preferable to utilize a pipe electrode holding device which has a structure similar to that shown in FIG. Since the pipe electrode holding device is described in detail in Japanese Utility Model Application Publication No. 1-143321, its explanation will be omitted here.

(Hereinafter, this page margin) Next, the die-sinking electrical discharge machine 3 of the processing machine group in this FMS will be explained with reference to FIGS. 37 to 43. Fig. 37 is a plan view of the processing table part of the die-sinking electrical discharge machine, Fig. 38 is a front view of Fig. 37, Fig. 39 is a side view of the processing table part of the die-sinking electrical discharge machine, and Fig. 40 is the machining part. 41 is a front view of the processing tank shown in FIG. 40, FIG. 42 is a sectional view showing a part of the wall of the processing tank shown in FIG. 40, and FIG.
It is an explanatory view showing a part of mechanism of the opening/closing door of the processing tank.

In this FMS, the die-sinking electrical discharge machine 3 can be equipped with an automatic electrode exchange device, etc., as in the conventional machine. The die-sinking electric discharge machine 3 in this FMS has a ball ()P;
Since the configurations are almost the same except for the differences in the mechanism for moving in and out, the mechanism for fixing the pallet P to the processing table, and the processing tank, the different devices will be described in particular. Furthermore, in the drawings, the same reference numerals are given to the die-sinking electric discharge machine 3 as compared to the wire electric discharge machine 1 to parts having the same functions.

The machining operation of this die sinking electric discharge machine 3 can be performed as shown in FIG. 57, for example. When the die-sinking electrical discharge machine 3 is ready for machining, the controller issues a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 moves the die-sinking electrical discharge machine 3 to the machine 4.
The die-sinking electrical discharge machine 3 performs the work of carrying in a pallet P on which the workpiece W stored in the shelf 19 of When the pallet P is set, the die-sinking electrical discharge machining machine [13] is activated to perform electrical discharge machining on the workpiece W into a predetermined machining shape. When die-sinking electric discharge machining is completed on the workpiece W, the pallet P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or is carried out to the setup station 36. .

In this die-sinking electric discharge machining 8I3, the workpiece W is set in advance on each pallet P, and the pallet P is
Jig Mousse 7 installed on the table in an electrically insulated state
The intermediate transfer device 7 and the lifting/lowering device 122 automatically carry the workpiece into and out of the processing table 75 fixed to the worktable 4. This die-sinking electrical discharge machining 113 includes a filtration device 21 that circulates and filters the machining fluid used during electrical discharge machining, and a ball (ballet) P from the intermediate transfer device 7.
7) The support member 120 that supports the pallet support member 120 is raised and lowered in the processing tank 76 to move the barren) P up and down. A device 122, a clamping device 278 provided on the lifting device 122 to fix the baren) P on the pallet support member 120, and a clamping device 278 provided on the lifting device 122 to place the baren) P lowered by the lifting device 122 on the processing table 75 and clamp the end of the baren) P. A pallet pressing device 77.77A for pressing and positioning the parts, and a processing tank device 79K having an openable/closable opening/closing device 80D for accommodating processing liquid provided in a processing tank 76K attached to the jig mousse 74 are provided. ing. A jig base 74 is fixed in an electrically disconnected state on the X-Y table of the die-sinking electric discharge machine 3, and the machining tank 7 is connected to the cough jig mousse 74.
6K is installed.

Further, a pair of processing tables 75 serving as position reference means are fixed to the upper surface of the jig base 74 or the bottom wall 67.

The jig base 74 is provided with clamp devices 78 located on both sides of the processing table 75. A pallet pressing device 77° 77A is attached to the processing table 75 in order to fix the loaded baren P at a predetermined position I. Support rollers (three on each side are shown in the figure) attached to a connecting bar 82 fixed to the connecting bar 82P are attached to each connecting bar 82 when the pallet P is positioned by the pallet pressing device 77.77A. Guide rollers 126 are provided to guide the side and top surfaces of P.

The processing table 75 in this die-sinking electrical discharge machine 3 extends and is fixed to the jig base 74 so as to support both ends of the pallet P. The mounting structure between the processing table 75 and the jig base 74 is not particularly limited. The processing table 75 is an NC
It is configured to move in the horizontal direction along with the horizontal movement of the table that is servo-moved by the device, and the positional relationship with respect to the travel path along which the engraving electrode RE moves up and down is determined in advance. Connecting bars 8 on both sides attached to the lifting bag W122 so as to be movable up and down with respect to the processing table 75
2, when pressing the ballen) P, the ballen +-p is placed on the processing table 7.
5, clamps 85 facing both sides of the pallet 10 are fixed so as to be movable up and down.

This elevating device 122 has two cylinders 121 provided in the front-rear direction and two cylinders 121 provided in the left-right direction. Connecting bars 82 disposed on both sides are attached to each cylinder 121 on both sides via brackets 82B.

Each connection bar 82 has cylinders 121 provided at both ends.
It can be moved up and down by the operation of . The vertical stroke of the connecting bar 82 is configured to be large,
The height ranges from the height at which the pallet P is carried in and out of the intermediate transfer device W7 to the height at which the engraving process is set on the processing table 75. A shaft 82S is rotatably attached to the rear part of the connecting bar 82 via a placket 82C. Pinions 124 are attached to both ends of the shaft 82S.

On the other hand, racks 82R are provided at both bases of the processing table 75 extending upward on both sides. A pinion 124 that moves up and down is engaged with each rack 82R. Therefore, the vertical movement of the connecting bar 82 due to the operation of the four cylinders 121 is caused by the pinion 124 meshing on the rack 82R and moving up and down, so that the braquef (82B) which moves up and down due to the operation of the four cylinders 121 is synchronized. The connecting bar 82 becomes able to move up and down in a horizontal state.

In this die-sinking electrical discharge machine 3, when loading and unloading the barre 7), the connecting bar 82 is slightly moved upward by the operation of the cylinder 121 to release the fixed state of the pallet P in the clamp 85, and the intermediate transfer device 7 The container is brought into a state where it can be carried out, and the baren (P) from the intermediate transfer device 7 is made ready to be carried in. Furthermore, a reference fitting 81 for vertical position setting, which is a positioning stopper, is attached to the upper end of the processing table 75, that is, on the base (FIG. 38). The upper surface of the reference fitting 81 functions as a reference surface 81S. The pallet P is lowered onto the processing table 75 using the lifting device 122, and the reference surface 28 on the lower surface of the ball P is brought into contact with the reference surface 815 of the eight reference fittings on the processing table 75, to process the pallet P. When positioning on the stand 75, the cylinder 121 is activated, the clamp device 78 is activated, and the clamp 85 presses the pallet P downward. Therefore, the finished surface of the lower surface of the pallet P, that is, the reference surface 28, comes into contact with the reference surface 81S of the reference fitting 81, and the pallet P is positioned in the correct position in the predetermined height direction with respect to the processing table 75. will be set.

In addition, a part of the connecting bar near the reference surface 28 has a magnet 12 which is pressed toward the bar P side by the spring force of the spring and can sink against the spring force when pressed in the forward direction.
5 is installed. The magnet 125 has the function of preventing the position of the baren (P) from moving when the cylinder 121 is actuated and the clamp device 78 is actuated.

Furthermore, in this die-sinking electric discharge machine 3, pallet pressing devices 77.77A are provided on the reference surface 29 and 30 of the pallet P.
The positioning stopper 84.8 provided on the processing table 75 by
Pressed to 7. The pallet pressing device 77 that presses the baren) P to a predetermined position in the forward direction of the processing table 75 is
In order to press the reference surface 29 of the pallet P against the positioning stopper provided on the processing table 75, that is, the reference surface 84S of the reference fitting 84, cylinders 86C provided on the processing table 75 are provided on both sides of the processing table 75. Also, a pallet pressing device 77A that presses the pallet P to a predetermined position in the side direction of the processing table 75
The reference plane 30K on the side surface of the baren) P is located on the processing table 75.
The processing table 75 is moved in the front and back direction of the processing table 75 to press the
It has a cylinder 88 provided at. These cylinders 86C and 8B have fluid chambers formed on both sides of the piston that reciprocates within the cylinders, and when fluid is introduced into the fluid chamber on either side, the piston moves into the cylinder 86C.
, 88.

In the pallet pressing device 77 that presses the side end of the pallet P against the reference fitting 84 of the processing table 75, the end of the piston rod 90 fixed to the piston in the cylinder 86C can come into contact with one side of the pallet P. The tank is bottomed. Therefore, when the cylinder 86C is actuated and the piston rod 90 starts to extend, the tip end surface of the piston rod 90 comes into contact with the rear end surface of the pallet P, and presses the baren P in the front direction. By bringing the reference surface 29S of the metal fitting 29 into contact with the reference surface 84S of the reference metal fitting 84 provided on the processing table 75, the baren) P can be positioned at a predetermined position in front.

In addition, the reference plane 30K of the side end of the pallet P is connected to the processing table 75.
In the pallet pressing device 77A, which is pressed against the positioning stopper, that is, the reference fitting 87, the end of the piston rod 89 fixed to the piston in the cylinder 88 is pressed against the pallet P.
The bottom of the tank can be touched on one side of the tank. Therefore, when the cylinder 88 operates and the piston loft 89 starts to extend, the tip end surface of the piston rod 89 comes into contact with the side surface of the pallet P, presses the pallet P in the side direction, and pushes the reference metal fitting 30 provided on the side surface of the pallet P. The pallet P can be positioned at a predetermined position on the side by bringing the reference surface 30K into contact with a positioning stopper 87 provided on the processing table 75.

In addition, in this die-sinking electrical discharge machine 3, the pallet P is
It is fixed to the processing table 75 of the die-sinking electric discharge machine 3 by a plurality of clamps 85 of the clamp device W78, and has edges on both sides that are pressed by the clamps 85. The clamp device 78 includes four cylinders 121, a piston rod 82P that moves up and down by the operation of the cylinders 121, a connecting bar 82 on both sides fixed via a bracket 82B attached to the piston loft 82P, and a central portion of the connecting bar 82. The tank bottom is connected to the attached clamp 85. Further, in order to smoothly move the connecting bar 82 up and down, a guide column 82G is fixed to the processing table 75. The clamping device 78 is provided with a pallet fixing sensor and a pallet release sensor (not shown) in order to detect whether the cylinder 121 is actuated to fix or release the pallet P onto the processing table 75.

In order to fix the pallet P on the reference fitting 81 of the processing table 75 using the clamp 85, fluid is introduced into the cylinder 121 through the fluid passage and the piston is moved downward.
Piston rod 82P moves downward. Therefore, the clamp 85 attached to the piston rod 82P via the bracket 82B and the connecting bar 82 moves downward. The downward movement of the clamp 85 presses the pallet P onto the processing table 75 and fixes the pallet P to the processing table 75. Further, moving the clamp 85 of the clamp device ff78 upward to release the fixation of the barrel l-P to the processing table 75 can be achieved by operating the cylinder 121 in the opposite direction.

In this die-sinking electrical discharge machine 3, the machining tank device 79K is particularly shown in FIGS. 40, 41, 42, and 4.
This is shown in Figure 3.

This machining tank device 79 has a machining tank 76K attached to the jig base 74 on the XY table of the die-sinking electrical discharge machine 3, and is filled with machining fluid when die-sinking electrical discharge machining is performed on the workpiece W. It is something to keep. The machining tank 76 is formed in a sealed structure to be filled with machining fluid, and has an open upper part, and has a cutout opening 80A for carrying in and out a pallet P with a workpiece W set on the upper part. Front wall 76F, rear wall 76
It is composed of R2 side walls 763 and a bottom wall 67 which is a sub-base attached to the jig base 74. Front wall 7
The notch 80A on the 6F is configured to be closed by an openable/closeable door 80D. Processing tank device 79
, the above-mentioned walls forming the processing tank 76K, the front wall 76
An opening 80A formed in F for loading and unloading the pallet P,
i An opening/closing door 5oD that can be moved downward when opened against the front wall 76F to seal or open the opening 80A=x A cylinder 92A for vertically moving the opening/closing door 80D, and an operation of the cylinder 92A to open/close 1 ft 80D up and down. It has a vertical movement mechanism to move it. In processing tank bag W19A,
The vertical movement mechanism of the opening/closing R80D includes an opening/closing door 80D for opening/closing the opening 80A, a guide column 127 installed on both sides of the opening/closing door 80D, and fixed to the front wall 76F, and a guide column 1.
Cylinder 92A attached to the upper end of 27, the cylinder 9
It consists of a piston rod 95P fixed to a piston that reciprocates in the vertical direction within 2A, and a bracket 92B attached to the lower end of the piston rod 95P and fixed to the lower part of the opening/closing door 80D.

That is, the cylinder 92A and the piston rod 95P function as an actuator that moves the opening/closing Ji 80D up and down.

Furthermore, in the vertical movement mechanism of the opening/closing door 80D, the guide post 127 serves as a guide for the opening/closing door 80D, and the guide groove 118 formed in the guide post 127 has a guide post 127 for guiding the opening/closing door 80D.
Guide rollers 117 provided at the upper and lower portions of both sides of D are engaged (FIG. 43). Further, a bracket 76B is fixed to the guide column 127, and a cylinder 80C for operating a piston rod 80P is fixed to the bracket 76B (FIG. 42). When the piston rod 80P protrudes due to the operation of the cylinder ROC, the piston rod 80P
The tip of P functions to press the opening/closing door 80D against the front wall 76F. That is, the opening/closing door 80 is opened/closed by the operation of the cylinder 92A.
D is raised and the opening 80A of the front wall 76F is opened/closed 1f.
When closed by i80D, the cylinder 80C is actuated and the piston rod 80P presses the opening/closing #80D against the front of the front wall 76F. In addition, the opening/closing door 80D and the front wall 76F
A sealing material 80S is placed between them, and the opening/closing door 80D and the front wall 76F contact each other in a sealed state, so that the processing tank 76
It is possible to prevent the machining fluid from scattering or leaking within the chamber.

In this processing tank device 79A, opening/closing f! In order to detect the open/close state of the door 80D, an open end sensor detects the open state of the open/close IB 80D and a closed end sensor detects the closed state of the open/close door 80D.

The open end sensor and the closed end sensor can be provided on the front wall 76F, the opening/closing door 80D, the cylinder 92A, or the like. Therefore, the open end sensor opens and closes fm80.
Detecting that D is in the open state, the controller receives the detection signal and transfers the barre 7) P located in the intermediate transfer device 7 to the pallet support member 12 of the die-sinking electrical discharge machine 3.
0, or control is performed to move the barrel P on the processing table 75 from the pallet support member 120 to the intermediate transfer device 7. In addition, opening/closing door 80D
A closed end sensor detects the closed state of the die-sinking electric discharge machine 3, and upon receiving the detection signal, the controller injects machining fluid into the machining tank 76K and controls the die-sinking electrical discharge machine 3 to operate.

As mentioned above, the processing table 7 in this die-sinking electrical discharge machine 3
The device for positioning the pallet P onto 5 is constructed so that it can operate as follows. First, in order to open the opening/closing 180D of the machining tank device 79A provided in the die-sinking electrical discharge machining 813, the cylinder 92A is operated to extend the piston rod 95P downward, and the opening/closing door 80D is lowered to open the opening 80A.

On the other hand, operate the lifting device f122 to lift the pallet support member 1.
20, the cylinder of the clamping device 78]
21 to extend the piston rod 82P and raise the connecting bar 82. When the connecting bar 82 is raised, the pallet supporting member 1 located above the processing table 75
20 so that it can be transported. The pallet P is sent onto the pallet support member 120 by the lifter 100 of the intermediate transfer device W7. Push-pull arm 1 of lifter 100
01 moves forward and pushes the pallet P onto the pallet support member 120. Next, the lifter 100 of the intermediate transfer device 7 is slightly lowered, and the locking pin 7P provided in the push-pull-out arm 101 is released from the recess 33 formed in the barrel 7)P, and then the push-pull-out arm 1 of the lifter 100 is removed.
01 to the intermediate transfer device 7 side. Thereafter, the cylinder 121 of the lifting device 122 is operated to lower the pallet support member 120 on which the pallet P is mounted onto the processing table 75. When the pallet support member 120 moves up and down, the magnet 125 attached to the connection bar 82 is pushed out toward the pallet P by the force of the spring, and prevents the baren P from moving on the pallet support member 120. As a result, the reference surface 28 formed on the lower surface of the baren) is aligned with the processing table 75.
is placed in contact with the reference surface 81S of the reference fitting 81.

In this state, the pallet pressing device 77 is activated to extend the piston rod 90 and press the rear end of the pallet P against the positioning stopper of the processing table 75, that is, the reference surface 84S of the reference fitting 84.

The front end surface of the pallet P is set in position by the action of the pallet pressing device 770.Next, the cylinder 88 of the pallet pressing device 77A is operated to push the side end surface of the pallet P laterally with the piston rod 89, and the side end surface of the pallet P is set. The reference surface 30S of the reference metal fitting 30 is the reference metal fitting 8 provided on the processing table 75.
7, and position the side end surface of the baren) P on the processing table 75. After positioning the baren) P on the processing table 75 in this way, the clamp device 78 is activated to lower the clamp 85 slightly, and the pallet P is pressed against the processing table 75 by the clamp 85, and the lower surface of the pallet P is The reference surface 28 is the reference surface 81 of the reference fitting 81 of the processing table 75.
5 in a pressed state, and the baren) P is fixed on the processing table 75. Therefore, the pallet P can be set at a predetermined processing position on the processing table 75. Of course,
In all of these operating steps, each detection signal from each sensor is input to the controller, and based on the input signal, the controller issues an operating signal for the next step to operate a predetermined device. Next, when the positioning of the barrel l-P on the processing table 75 is completed, the cylinder 92A of the processing tank device 79A is activated, the opening/closing door 80D is raised, and the opening 80A of the front wall 76F is closed by opening/closing 1980D. Then, close the loading/unloading entrance of Baren) P.

In this state, the machining tank 76 is filled with machining fluid, and the die-sinking electric discharge machine 3 is operated to start die-sinking electric discharge machining on the workpiece W set in advance on the pallet P. Electric discharge machining is performed on the workpiece W, a predetermined machining shape is machined on the workpiece W, and when the electric discharge machining is completed, the machining fluid inside is discharged into the machining tank 76, and then the machining tank apparatus! The cylinder 92A at 79 is operated to lower the opening/closing door 80D and open the opening 80.
Open A and open the loading/unloading entrance of baren) P. Next, the piston rod 90 of the pallet pressing device 277.77A
．． 89 is made inactive and moved backward.

Furthermore, the cylinder 121 of the lifting device 122 is operated to raise the pallet support member 120, and the pallet P is raised.Next, the intermediate transfer device 7 lid 100 is operated to intermediately transfer the pallet P from the pallet support member 120. Move it to the device 7 side.

Next, in the FMS in this processing machine group, in order to perform the delivery operation of the barre 7) P between each processing machine 1.2.3 and the stacker crane 6, each processing machine 1, 2.3 is provided with a The intermediate transfer device 7 will be explained with reference to FIGS. 46 to 52. FIG. 46 is a front view showing the entire intermediate transfer device, FIG. 47 is a side view of FIG. 46, FIG. 48 is a front view of the upper part of the intermediate transfer device, and FIG.
The figure is a plan view of Fig. 48, Fig. 50 is a side view of Fig. 48,
Figure 51 is a front view of the lower part of the intermediate transfer device and Figure 52 is a front view of the lower part of the intermediate transfer device.
The figure is a plan view of FIG. 51.

This intermediate transfer device 7 mainly consists of a cart 163 equipped with rollers 162 that can reciprocate on a slide rail 161 laid on a base 160, and a frame 16 of the cart 163.
A locking pin that engages with a recess 32 formed in the pallet P on the front end side is provided at the upper end of the frame 164 of the truck 163 having the push-pull arm 101 provided on the lid 100 and the lifter 100. 168 and a pallet seat portion 168S on which the lower surface of the pallet P is seated is provided on the rear end side.

The base 160 includes a trolley 16 fixed to the base 160.
A cylinder 159 serving as a driving device for No. 3, the cylinder 159
The base 1
A slide rail 161 laid on top of the slide rail 60 is provided. This slide rail 161 is connected to the stacker crane 6
The running path 5 extends horizontally at right angles to the running direction.

The cart 163 includes a cart frame 164 that reciprocates on the base 160, a receiving member 173 for the pallet P formed on the upper surface of the cart frame 164, a locking pin 168 protruding from the upper surface of the receiving member 173, and It has a lifter 100 mounted thereon that can move up and down. Two receiving members 173 are arranged above and parallel to the slide rail 161. The upper surface of the Zenai member 173 is finished, and the surface formed by the Zenai member 173 is configured to be on the same level, and also parallel to the moving surface formed by the slide rail 161. It is composed of

The lifter 100 is arranged between receiving members 173,
A cylinder 166 fixed to the frame 164, a piston rod 169 that reciprocates within the cylinder 166, a piston rod 169 fixed to the piston rod 169, and a lid frame 165.
and a push-pull arm 101 mounted on the lifter frame 165. Therefore, the push-pull arm 10
1 provides a slide mechanism in which a fork-like arm 171 can be moved back and forth by a slide rail 180 with respect to the base of the lifter 100, that is, the lifter frame 165, by the operation of a cylinder 166.

The push-pull arm 101 of the lifter 100 has a cylinder 167 fixed to a lifter frame 165, a piston rod 172 that reciprocates within the cylinder 167, and a fork-like arm 171 fixed to the piston loft 172.

A pallet P
Actuating pins 170 that engage with the recesses 33 are formed on both sides.

This intermediate transfer device 7 is constructed as described above and operates as follows. In the intermediate transfer device 7, the reciprocating movement of the cart 163 on the slide rail 161 is performed by a cylinder 159, the vertical movement of the lifter 100 is performed by a cylinder 166, and the forward and backward movement of the push-pull arm 101 is performed by a cylinder 167. However, an interlock is applied to each drive.

First, the cylinder 159 is actuated to move the truck 163 toward the stacker crane 6, that is, toward the running passage 85. A stacker crane 6 carrying a predetermined pallet P stops on the side facing the intermediate transfer device 7. By the operation of the fork device 50 of the stacker crane 6, the tip fork 60 of the fork device 50 extends onto the intermediate transfer device 7, and the pallet P placed on the tip fork 60 is transferred to the intermediate transfer device 27.
The barrel P is placed so that the recess 32 of the ball P is engaged with the locking pin 168 provided at the upper end of the frame 164 of the trolley 163.

Next, the cylinder 166 of the lifter 100 of the intermediate transfer device 7 is activated, and the lifter frame 165 is raised.
An operating pin 170 formed on the push-pull arm 101 provided on the lifter 100 engages with a recess 33 provided on the pallet P. Furthermore, as the lifter 100 rises,
The locking pin 168 provided at the upper end of the frame 164 separates from the recess 32 of the pallet P. Therefore, the barre 7)P is placed on the push-in and pull-out arm 101 with the operating pin 170 and the recess 33 engaged, and in this state, the cylinder 167 is operated and the push-in and pull-out arm 101 is processed.
2. Move forward to the 3rd side. As the push-pull arm 101 moves forward, the pallet P is carried into the pallet support member on the processing table 75 of the processing machine 1, 2.3. The lifter 100 is slightly lowered by the operation of the cylinder 166, and the operating pin 170 provided on the push-pull arm 101 moves into the recess 3 of the pallet P.
Leave from 3. Here, the cylinder 167 is actuated to retract the push-pull arm 101 toward the intermediate transfer device 7 and move it backward. Carriage 163 in intermediate transfer device 7
is the processing machine 1 until the electrical discharge machining of the workpiece W is completed in the processing machines 1, 2.3.

2. Wait on the 3 side.

Next, when the electrical discharge machining on the workpiece W in machining 111.2.3 is completed, the slide cover 80, which is the opening/closing door of the EDM, is opened upon receiving a signal from the controller indicating the completion of the machining.
After the opening/closing fi80D is completely opened, the cylinder J67 of the push-pull-out arm 101 operates, and the push-pull-out arm 1
01 advances toward the processing machine 12.3. Push-pull arm 1
01 is inserted below the pallet P, the lifter 10
The cylinder 166 of No. 0 operates to raise the push-pull arm 101 mounted on the lifter 100. The operating pin 170 of the push-pull-out arm 101 engages with the recess 33 of the pallet P, and the pallet P becomes mounted on the push-pull-out arm 101. Here, the cylinder 167 is actuated and the push/pull arm 101 is retracted toward the intermediate transfer device 7 and retreated. When the push-pull arm 101 reaches a predetermined position on the truck frame 164 of the intermediate transfer device 7, the cylinder 166 is activated and the lifter 100 is lowered.

As the lifter 100 descends, the push-pull arm 101 is lowered, and the pallet P mounted on the push-pull arm 101 is lowered, and the locking pin 168 provided on the trolley frame 164 engages with the recess 32 of the pallet P. While being placed on the cart frame 164, the operating pin 170 of the push-pull arm 101 is inserted into the recess 33 of the pallet P.
depart from. The push-in/pull-out arm 101 further descends and stops at a predetermined lower position of the truck frame 164.

Furthermore, the cylinder 159 is operated and the truck 163 is moved to the rail 1.
61 to the stacker crane 6 side. The fork device 50 of the stacker crane 6 operates and the tip fork 6
0 begins to extend, and the tip fork 60 is positioned below the pallet P. As the tip fork 60 rises slightly, the tip fork 60 lifts the pallet P, the locking pin 67, A provided on the tip fork 60 engages with the recess 31 of the pallet P, and the lower surface of the pallet P Support pin 6
7B, and the locking pin 168 of the truck frame 164 separates from the recess 32 of the pallet P. The fork device 50 is operated and the tip fork 60 is retracted to move the pallet P onto the stacker crane 6.

Furthermore, although the FMS in this processing machine group is configured as described above, the fluid circuit that operates each cylinder in this FMS is configured as follows, for example.

To explain an example of each cylinder of the wire electric discharge machine l and the intermediate transfer device W7, on the wire electric discharge machine mI side, fluid from a fluid pressure supply source such as a pump is passed through a fluid pressure adjustment device, a fluid switching valve, etc. Each cylinder 78
Fluid pressure is supplied to C, 86, 88, and 92 (the cylinder 92 of the slide cover 80 may be an air cylinder). Regarding the intermediate transfer device 7 side, fluid from a fluid pressure supply source such as a pump is supplied to each cylinder 159, 166, 16 through a fluid pressure adjustment position, a fluid switching valve, etc.
7 is supplied with fluid pressure. Fluid is supplied to each cylinder, and the piston within each cylinder reciprocates, whereby the operating state of each cylinder is detected by each sensor.

The detection signals detected by each sensor are input to the controller, and the controller responds to each detection signal and issues a command according to the operation process that has been input in advance as a sequence to the wire electrical discharge machine 1 and the intermediate transfer device. 7 to carry the pallet 10 in and out of the wire electrical discharge machine 1, and also to carry it in and out of the intermediate transfer device 7.

The above describes an example of the fluid circuit for the wire electrical discharge machine 1 and the intermediate transfer device W7. A similar fluid circuit can be used in the device 12 as well.

In addition, in the flexible manufacturing system of this processing machine group, it is of course possible to provide a reference surface cleaning device for cleaning the reference surface of the reference member of each processing table and the reference surface of the baren P. . If the reference surface cleaning device is provided, the reference surface of each processing table where the baren) P is set, and the reference surface of the baren) P can be cleaned every time the pallet is set or at a predetermined period, and the pallet P is always accurately and reliably cleaned. It can be set on each of the processing tables, and the accuracy of processing the workpiece can be improved.

[Effects of the Invention] Since the flexible manufacturing ring system in the processing machine group according to the present invention is configured as described above, it has the following effects.

That is, the flexible manufacturing system of this processing machine group includes a processing machine group in which a large number of various types of processing machines are installed, a pallet that is attached to the processing machine group and is equipped with reference means and can set the workpiece at a predetermined position. a rack with a plurality of shelves having openings for entry and exit of the pallets;
a stacker crane that reciprocates along a travel path between the rack and the processing machine group and transports the pallet in and out between the processing machine group and the rack; and the stacker crane and each of the processing The pallet is provided with intermediate transfer devices for reciprocating between the machine and the stacker crane or each of the processing machines while maintaining the position of the pallet. If a workbench equipped with a machining reference means is placed on the workbench and a workpiece is set at a predetermined position on the pallet equipped with the machining reference means, the pallet carried onto the workbench can be clamped. Just fix it on the processing reference part with the device,
The workpiece can be set accurately, quickly, and unattended by the machine's processing part number. Therefore, the pallet can be carried into the processing machine by the stacker crane and the intermediate transfer device, and the workpiece can be automatically set at a predetermined position on the processing table of the processing machine reliably, quickly, and unattended. After the workpiece has been processed, it can be automatically and unmanned removed from the processing machine by the intermediate transfer device and then by the stacker crane.

Furthermore, each processing machine in the processing machine group includes a processing tank mounted on a table, an opening/closing door formed in the processing tank that opens and closes an entrance for the pallet, a processing table mounted on the table, and a setting of the processing table. The processing machine includes a pallet pressing device provided on the processing machine to set the pallet by pressing the pallet to a position, and a clamping device for fixing the pallet carried onto the processing table to a processing reference part,
The position can be set by pressing the pallet to the processing reference position of the processing table using the pallet pressing device, and by operating the clamping device in conjunction with the pallet pressing device, the pallet can be moved against the processing table. The position can be set automatically, reliably, and accurately with a high degree of precision.

Furthermore, since the controller includes a controller for transporting the pallet in and out in response to an open state of the opening/closing door of the processing tank and operating the processing machine in response to a closed state of the opening/closing door of the processing tank,
Carrying in/out operations and processing steps can be performed accurately and reliably according to predetermined operating steps, and in an extremely safe state. Therefore, for example, when electrical discharge machining is performed on the workpiece, a series of work steps such as carrying the workpiece into the processing machine, setting, machining, and unloading can be performed automatically and unattended, day and night. The processing machine can be operated regardless of the situation.

Further, the pallet has a cutout hole in the center that is wider than the processing area of the processing machine, and the pallet has a cutout hole that is wider than the processing area of the processing machine, and the pallet matches the processing reference means of the processing table provided on the processing machine to set the pallet at a predetermined position on the processing table. Reference means and fixing means provided at a predetermined position from the reference means and outside the machining area of the processing machine for setting the workpiece at a predetermined position on the pallet, the workpiece can be fixed at various positions on the pallet. It can immediately adapt to the machining shape, and if the reference means provided on the pallet is shared by each processing machine in the processing machine group, the pallet can always be accurately and reliably positioned on each processing machine. It is possible to improve the machining accuracy of the workpiece.

Further, the clamping device includes a connecting bar provided on the processing table, a clamp provided on the connecting bar, and an actuator that moves the connecting bar up and down, and the actuator moves the reference means of the pallet into the processing according to a command from a controller. It operates with the barre 7) stationary at a predetermined position by pressing it against the reference means of the table, so when the pallet is pressed against the reference means of each processing machine, the pallet is placed in the predetermined position of the processing table. The processing position of the workpiece can be set accurately and reliably with respect to the processing table, and the workpiece can be processed immediately upon receiving a signal for fixing the pallet from the clamping device. There is no negative effect on accuracy.

Alternatively, in the above flexible manufacturing system, the present invention further provides a setup indexing device comprising a pallet mounting table for mounting and positioning the pallet in order to carry the pallet into and out of the stacker crane in a positioning state. , a rust prevention treatment device installed in the pallet traveling system to apply rust prevention treatment to the workpiece, and a device for spraying fluid to remove deposits such as machining fluid, foreign matter, dust, etc. adhering to the surface of the workpiece. Since the fluid spraying system installed in the pallet traveling system has a device, if the pallet carried into this processing system is placed in a predetermined position on the pallet mounting table, the pallet will always be in a positioned state for subsequent movement. The pallet can be moved, carried in and out, stored, etc. while being positioned relative to a stacker crane, a group of processing machines, etc. Furthermore, since the anti-rust treatment device is provided in the travel path, the workpieces on the pallet can be automatically subjected to anti-rust treatment. Furthermore, since a fluid spraying device is provided in the pallet traveling system, it is possible to spray fluid and remove deposits attached to the surfaces of the workpieces.

In addition, in the flexible manufacturing system of this processing machine group, a reference surface cleaning device for cleaning the reference surface of the reference member of the processing table and the reference surface of the pallet can be provided, so that the pallet is set. The reference surface for the processing and the reference surface of the pallet can be cleaned at the time of setting the pallet or at predetermined intervals, and the pallet can always be accurately and reliably placed on the processing table;
The accuracy of machining workpieces can be improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing an embodiment of the FMS in a group of processing machines according to the present invention, FIG. 2 is a schematic front view of FIG. 1,
FIG. 3 is a schematic plan view showing another embodiment of the FMS in a group of processing machines according to the present invention, FIG. 4 is a plan view showing an example of a pallet that can be commonly used in this FMS, and FIG. 6 is a cross-sectional view taken along line VV of FIG.
-Vl is a sectional view, FIG. 7 is a plan view showing an example of a setup indexing device that can be used in this FMS, and FIG.
9 is a front end side view of FIG. 7, FIG. 10 is a schematic front view showing the stacker crane as a whole, and FIG.
Figure 1 is a side view of Figure 10, Figure 12 is a perspective view schematically showing the stacker crane, Figure 13 is a perspective view schematically showing the fork heath mounted on the stacker crane, and Figure 14 is a diagram showing the lower part of the stacker crane. 15 is a front view showing the upper part of the stacker crane, FIG. 16 is a sectional view showing the transmission mechanism of the fork device of the stacker crane, FIG. 17 is a front view of the fork device, and FIG. 18 is the fork device. FIG. 19 is an explanatory diagram showing the fork device in a retracted state, and FIG. 20 is an explanatory diagram showing the fork device in an extended state.
Figure 21 is a front view of a rust prevention treatment device that can be used for
Fig. 22 is a side view of the working table of the wire electric discharge machine, Fig. 23 is a front view of Fig. 22, and Fig. 24 is a plan view of the working table of the wire electric discharge machine. Fig. 25 is a partial plan view of Fig. 24, Fig. 26 is another side view of the processing table of the wire electric discharge machine, Fig. 27 is a partial sectional view of the clamping device, and Fig. 28 is a partial sectional view of the processing tank cover device. A perspective view, Fig. 29 is a sectional view of Fig. 28, Fig. 30 is a plan view of the machining tank cover device, Fig. 31 is a side view of Fig. 30, and Fig. 32 is a small electric discharge machine and pipe electrode exchange device. 33 is a side view of the pipe electrode exchange device, and FIG. 34 is a line mx- in FIG. 32.
35 is a plan view of the index table, FIG. 36 is a sectional view taken along line BB in FIG.
Fig. 38 is a front view of Fig. 37, Fig. 39 is a side view of the processing table part of the die sinking electrical discharge machine, Fig. 40 is a plan view of the machining tank device, Fig. 41 is a plan view of Fig. 40, 42 is a sectional view showing a part of the wall of the processing tank in FIG. 40, and FIG.
Explanatory diagram showing part of the mechanism of the opening/closing door of the processing tank shown in Fig. 44.
45 is a side view of FIG. 44, FIG. 46 is a front view showing the intermediate transfer device as a whole, and FIG.
7 is a side view of FIG. 46, FIG. 48 is a front view of the upper part of the intermediate transfer device, FIG. 49 is a plan view of FIG. 48, and FIG.
The figure is a side view of Fig. 48, Fig. 51 is a front view of the lower part of the intermediate transfer device, Fig. 52 is a plan view of Fig. 51, and Fig. 53 is an example of the process from planning schedule to setup schedule creation in this FMS. FIG. 54 is a block diagram showing an example of setup work in this FMS, FIG. 55 is a block diagram showing an example of machining with a fine electric discharge machine in this FMS, and FIG. A block diagram showing an example of machining using an electric discharge machine,
and FIG. 57 is a block diagram showing an example of machining by a die-sinking electrical discharge machine in this FMS. 1-----Wire electrical discharge machine, 2-.-Small hole electrical discharge machine, 3-----One die carving electrical discharge machine, 4--Rack, 5--Traveling path, 6-・－・－Stacker crane,
7-----Intermediate delivery device, 8--Barre 7) Main body, 79A--Processing tank device, 9----- Single stage indexing device, 1° anti-corrosion treatment device, 12-- Fluid spraying equipment, 19-shelf, 20--one opening, 24--all extraction holes, 29, 30--quantity standard fittings, 28.29, 3
0 to 81 S, 84 S, 87 S--Reference surface, 31.3233--Recessed portion (reference means), 7
4----1 jig mousse (table), 7'', J-111 processing table, 76.76 processing tank, 77, 77 A--
- Pallet pressing device, 7 B---- Clamping device, 8
0---Slide cover (opening/closing door), 80 D---
1---- Opening/closing door, 81-Quantity reference fitting (reference means), 8
2-----Connection bar, 84.87--Positioning stopper (reference means), 85--Clamp, 86
, 121----Cylinder (actuator) P・-
111--Barrett, W--workpiece, WE wire electrode, PE--pipe electrode, RE, ---1-shaped carved electrode.

Claims (6)

[Claims] (1) A processing machine group with a large number of various types of processing machines installed, a pallet equipped with attachment reference means for the processing machine group and capable of setting workpieces at predetermined positions, and a plurality of processing machines having openings for entering and exiting the pallets. a stacker crane for reciprocating along a travel path between the rack and the processing machine group and transporting the pallet in and out between the processing machine group and the rack; A processing machine having intermediate transfer devices for reciprocating between the stacker crane and each of the processing machines, and for delivering and maintaining the positioning of the pallet between the stacker crane or each of the processing machines. Flexible manufacturing system in group. (2) Each of the processing machines includes a processing tank mounted on a table;
An opening/closing door formed in the processing tank to open and close the entrance/exit of the pallet, a processing table mounted on the table, and a processing machine provided to press the pallet to set the position of the processing table. The flexible manufacturing system for a processing machine group according to claim 1, comprising a pallet pressing device and a clamping device for fixing the pallet carried onto the processing table to a processing reference site. (3) The processing according to claim 2, further comprising a controller that moves the pallet in and out in response to an open state of the opening/closing door of the processing tank and operates the processing machine in response to a closed state of the opening/closing door of the processing tank. Flexible manufacturing system in aircraft fleet. (4) The pallet has a cutout hole in the center that is wider than the processing area of the processing machine, and a processing reference means of the processing table provided on the processing machine to set the pallet at a predetermined position on the processing table. 3. A method according to claim 2, further comprising matching reference means and fixing means provided at a predetermined position from said reference means and outside the working area of said machine for setting workpieces in a predetermined position on said pallet. Flexible manufacturing system for processing machines. (5) The clamping device includes a connecting bar provided on the processing table, a clamp provided on the connecting bar, and an actuator that moves the connecting bar up and down, and the actuator moves the reference means of the pallet to the 3. The flexible manufacturing system for a processing machine group according to claim 2, wherein the flexible manufacturing system operates with the pallet stationary at a predetermined position by being pressed against reference means of a processing table. (6) A processing machine group with a large number of various types of processing machines installed, a pallet equipped with attachment reference means for the processing machine group and with workpieces set at predetermined positions, and a plurality of processing machines having openings for entering and exiting the pallet. A rack equipped with a shelf, a stacker crane for reciprocating along a travel path between the rack and the processing machine group and carrying the pallet in and out between the processing machine group and the rack, and the stacker. A setup indexing device equipped with a pallet mounting stand for loading and positioning the pallet in order to carry the pallet into and out of the crane in a positioning state; and a setup indexing device provided in the pallet traveling system to apply rust prevention treatment to the workpiece. A rust prevention treatment device, a fluid spraying device installed in the pallet traveling system for spraying fluid to remove deposits attached to the surface of the workpiece, and reciprocating movement between the stacker crane and each processing machine. A flexible manufacturing system for a group of processing machines, further comprising intermediate transfer devices for transferring the pallet to and from the stacker crane or each of the processing machines while maintaining a positioning state of the pallet.