JPH03287310A - Working table device applicable to wire electric discharge machine and pore electric discharge machine - Google Patents

Abstract

PURPOSE:To enable a work to be accurately and quickly set in its working position by providing both a pallet pressing device for horizontally positioning a pallet, on which a work has been previously set in a prescribed position, by pressing the reference surface of the side surface of the pallet against a horizontal directional reference means in the state that the pallet has been placed on a working table, and a pallet clamp device. CONSTITUTION:A pallet P transferred on a working table 75 is fixed to a reference working position by means of pallet pressing devices 77 and clamp devices 78. Thereby a work W can be set accurately, quickly, and unmannedly in the working position of a working machine 1. Thus, the pallet P is transferred to the working machine 1 by means of a pallet transfer device, and the work W can be automatically set accurately, quickly, and unmannedly in a prescribed position of the working table 75 of the working machine 1, and also after the work W has been machined, it can be automatically and unmannedly transferred from the working machine to an appropriate place apart from the working machine group by means of the pallet transfer device.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to a wire electrical discharge machine, a small hole electrical discharge machine, a die carving machine, etc. in order to perform various desired processing on a workpiece. Wire electrical discharge machines and small holes in flexible manufacturing systems that process workpieces by automatically loading and unloading them into and out of a predetermined processing machine group such as electrical discharge machines, laser processing machines, and water jet processing machines. The present invention relates to a processing table device applicable to an electrical discharge 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 run roller and a brake roller in an automatic wire feeding device, and is supplied to a wire head having a wire guide with an 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 a small hole electrical discharge machine, a small hole or small hole is electrically discharged at a predetermined position of a workpiece, or
In order to perform electrical discharge machining on a workpiece using a wire electrical discharge machine, a starting 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 pipe electrode to generate electrical discharge energy. This is used to machine a small hole in a workpiece.

Furthermore, a die-sinking electric discharge machine processes a 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.

2. Description of the Related Art Recently, various apparatuses have been disclosed regarding electric 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 pipe electrode or rod-shaped electrode is worn out, the wire electrode, pipe electrode, or An electrode exchange device for automatically exchanging die engraving electrodes is provided.
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.
No. 9616. Furthermore, a wire electrical discharge machine that automatically takes out a core, that is, a workpiece from a workpiece, is disclosed in, for example, Japanese Patent Application No. 1-98878 filed by the present applicant.
Disclosed in the issue.

Regarding small hole 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 part fixed to a rotating spindle, a chunk part holding an electrode detachably attached to the holder part by a locking means, an attaching/detaching means for attaching and detaching the holder part and the chuck part, and The chuck pallet is installed close to the table and has a plurality of support parts for supporting the chuck part, and the holder part is connected to a machining position for electrical discharge machining of a workpiece and to the support parts of the chuck pallet. It is characterized by being able to move between the two.

As a result, the small-hole electrical discharge machine or the start water 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 the chuck section can be attached to the workpiece. When the pipe electrode is worn out by machining small holes, small holes or start holes in several places, it can be automatically replaced with a new pipe electrode, and it can continue to drill small holes, small holes or holes into the workpiece fixed on the work table. This makes it possible to perform electrical discharge machining of the start hole.

Further, 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 a wire cut electric discharge machining station, a die-carving electric discharge arm aesthetic silan, a laser machining station, an electric discharge pre-coating aesthetic silan, and a water jet machining station. Various types are provided. 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 a magnet to detect the inductance of a coil that changes when a workpiece of a wire electrical 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,
A bumper made of a conductive material is attached to the outer periphery of the arm via an insulator, and a control system that applies a minute voltage between 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 m device.

[Problem to be solved by the invention]

However, none of the conventional electrical discharge machines mentioned above automatically sets and attaches a workpiece to the X-Y table in the electrical discharge machine, which is an obstacle to fully automating the electrical discharge machine.

Therefore, various processing machine groups such as wire electrical discharge machines, small hole 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 stage becomes larger, 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, and When a certain processing machine exists, there is a problem in that a time loss occurs in loading a 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 is placed on the processing table of a wire electrical discharge machine and a small hole electrical discharge machine using a pallet loading/unloading device such as an intermediate transfer device, and the pallet is automatically, unattended, and accurately positioned and fixed on the processing table, and then processed. The purpose of the present invention is to provide a processing table device that improves accuracy and automatically and unmannedly transports the pallet on the processing table using a pallet loading/unloading device.In particular, the pallet with workpieces set in advance can be transferred to a wire electrical discharge machine, Reciprocating movement along a pallet traveling system between a group of processing machines (hereinafter referred to as EDM), including a large number of various processing machines (hereinafter referred to as EDM) such as small-hole electrical discharge machines and die-cutting small-hole electrical discharge machines, and stock locations such as racks. The stacker crane and the intermediate transfer device that transfers pallets between the stacker crane and the processing machine are used to fully automate various types of processing on workpieces. An object of the present invention is to provide a processing table device for a wire electrical discharge machine and a small-hole electrical discharge machine that is extremely suitable for application to a flexible manufacturing system in a group of processing machines that can continuously perform processing.

Furthermore, the processing table device that can be applied to the wire electrical discharge machine and the small hole electrical discharge machine allows the pallet 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. The set pallet is automatically carried out from the processing table to the stand cuff plane side, and each process of carrying in, setting, processing, and carrying out the workpiece is performed automatically and unattended continuously by repeating the above steps. 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 table mounted on a table, a horizontal reference means and a height reference means provided on the processing table, a processing tank mounted on the table, and a pallet entrance/exit formed in the processing tank for opening and closing. A machining tank device equipped with a sliding cover that can be used, with a pallet with a workpiece set in a predetermined position placed on the machining table, pressing the reference surface on the side of the pallet against the horizontal reference means to move the pallet in the horizontal direction. a pallet pressing device for positioning the pallet, and a clamping device for fixing the pallet to the processing table by bringing the reference surface of the lower surface of the barre 7) into contact with the height direction reference means; The present invention relates to a processing table device applicable to a hole electric discharge machine.

In this processing table device, the pallet pressing device includes a pressing arm that presses the rear end surface of the pallet and is rotatably attached to the processing table, a piston rod that rotatably attaches the pressing arm, and an actuator that extends and contracts the piston rod. and a lateral pressing means consisting of a piston rod that presses the end face of the pallet and an actuator that extends and contracts the piston rod.

Further, in this processing table device, 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 moved by the pallet pressing device to move the connecting bar up and down. It operates with the pallet positioned on the processing table.

Further, in this processing table device, a reference surface cleaning device is provided for cleaning the horizontal reference means, the height reference means, and the reference surfaces on the side and lower surfaces of the pallet provided on the processing table. be.

Furthermore, this processing table device includes a controller that moves the pallet into and out of the processing table in response to an open state of the slide cover of the processing tank and operates in response to a closed state of the slide cover. It is something.

In particular, this processing table device moves back and forth between a wide variety of processing machines, a rack with multiple shelves for storing pallets, a processing station where workpieces are treated to prevent rust, and a pallet loading/unloading station. During flexible manufacturing, a pallet with workpieces set thereon is delivered to each of the processing machines while maintaining the positioning state, and the workpieces on the pallet are automatically electrical discharge machined by each of the processing machines. This is applied to the ring system.

[Effect]

The processing table device applicable to the wire electrical discharge machine and the small-hole electrical discharge machine according to the present invention is configured as described above, and operates as follows. 1! IT, this processing table device consists of a processing table mounted on a table, a horizontal reference means and a height reference means provided on the processing table, a processing tank mounted on the table, and a processing tank formed on the processing tank. A processing tank device equipped with a slide cover that can open and close the pallet entrance and exit, a pallet with a workpiece set in advance at a predetermined position is placed on the processing table, and a reference surface on the side of the pallet is pressed against the horizontal reference means. and a clamping device that fixes the pallet to the processing table by bringing a reference surface of the lower surface of the pallet into contact with the height direction reference means. By simply fixing the pallet carried above to the processing reference part using the pallet pressing device and the clamping device,
The workpiece can be set accurately, quickly, and unattended at the processing site of the processing machine. Therefore, the pallet can be carried into the processing machine using the pallet loading/unloading 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 processing, the pallet can be automatically and unmanned carried out from the processing machine to an appropriate location using a pallet carry-in/out device.

Moreover, if the pallet with a heavy load can be pressed and positioned at a processing reference position on 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, The pallet can be positioned automatically, accurately and reliably with a high degree of accuracy with respect to the processing table.

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 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-hole 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. In addition, the machining tank device includes a machining tank that stores machining fluid, a machining tank cover device that prevents the machining fluid and machining debris from scattering, and a guard for safety. It 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.

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 processing machine group in which a wire electrical discharge machine 1, a small-hole electrical discharge machine 2, and a die-sinking electrical discharge machine 113 are installed, and a pallet P with a workpiece W set at a predetermined position.
A rack 4 equipped with a plurality of shelves 19 accommodating
The machine has a stacker crane 6 that reciprocates along the same line, and an intermediate transfer device 7 that reciprocates between the stacker crane 6 and the group of processing machines. Furthermore, this FM
S denotes a setup indexing device 9 equipped with a pallet mounting table 11 for mounting and positioning a baren (P), a rust prevention treatment device 10 for applying rust prevention treatment to the workpiece W, and a processing device attached to the surface of the workpiece W. A fluid spraying device 12 is provided for removing deposits such as liquid, foreign matter, and dust.

In this FMS, a wire electrical discharge machine 1 is shown in Fig. 1 as a processing machine (EDM) in which a large number of various types of processing machines are installed.
, one small-hole electrical discharge machine 2 and one die-sinking electrical discharge machine 3 are shown. Note that each processing machine has a filter bag W21 having a different function depending on 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, an inventory management machine 14, a relay panel 15,
The switch box 16 and the control words 222 provided in each of the processing machines 1, 2, and 3 are provided. The control device F22 is
It is controlled by the controller by manually outputting detection information to the controller. 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) includes information on what kind of workpiece W is set in advance on the pallet P carried in and out through the setup indexing device 9, and the setup indexing device 9.
Information on the loading and unloading order of pallets P loaded and unloaded through
Information on the barrels (P) accommodated in the various types 19, information on loading/unloading to/from 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 process from the planning schedule to the production of the setup schedule is structured as shown in FIG. First, a planned schedule is created in the host computer, and the next planned schedule is also created. The planning schedule created by the higher-level computer is transmitted from the higher-level computer to the control computer in the FMS. The planned schedule received by the control computer is displayed on a display or the like, but 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 machine 1, 2, 3, the processing machine side schedule, and setup schedule are used to create a work instruction sheet. After performing each of the above processes, the setup indexing device 9 starts the setup indexing work.

Next, with reference to FIG. 3, another example of an FMS using a processing table device applicable to a wire electrical discharge machine and a small-hole electrical discharge machine according to the present invention will be outlined. In this FMS example, compared to the above FMS example, the number of installed wire electrical discharge machines 1, small hole electrical discharge machines 2, and die-sinking electrical discharge machines 3 in the processing machine group and the layout of these processing machines are , and the layout of each device are different, but the systems perform similar functions. In this embodiment, one small-hole electric discharge machine 2 for machining a predetermined start hole in a workpiece W using a pipe electrode PE is installed at a position facing a setup indexing device 9.

On the other hand, in the figure, five wire electrical discharge machines 1 are installed, which machine the workpiece W into a predetermined shape by passing the wire electrode WE through a start hole formed in the workpiece W. In addition, four die-sinking electric discharge machines 3 are installed in the figure for machining a workpiece W with die-sinking electrodes RE of various shapes such as rod shapes. That is, while the time required to machine a start hole in the workpiece W with the small hole electric discharge machining 812 is short, the time required to machine the start hole in the workpiece W with the wire electric discharge machine 1 is short. It takes a long time to process a predetermined shape. Moreover, the time required for machining with the die-sinking electric discharge machine 3 is not the same as that with the wire electric discharge machine 1, but it takes a certain amount of time. Therefore, by installing the number of machines according to the time required for processing the workpiece W by various processing machines, it is possible to
It is possible to shorten the cycle time from when the workpiece W is carried in and installed until the time when the workpiece W is removed and carried out, and the process waiting time of the processing machine can be shortened, thereby improving cycle efficiency.

Here, in order to make the explanation of the processing table device applicable to the wire electrical discharge machine and the small-hole electrical discharge machine according to the present invention easier to understand, prior to explaining this processing table device, we will explain the processing table device used in this processing table device. An example of a preferable pallet P will be described with reference to FIGS. 4, 5, and 6. Fourth
The figure is a plan view showing an example of a pallet that can be commonly used in the processing table device of the present invention, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, and FIG. FIG.

In FMS, the pallet P is used to set various workpieces W in predetermined positions, and is made of a material such as stainless steel that has mechanical rigidity, electrical conductivity, and rust resistance. , mounting reference means such as reference fittings having a common reference surface for the various processing machines 1, 2.3, and locking means such as recesses are provided.

This pallet 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 allow the wire electrode WE to run. A workpiece holder 25, which is a fixing means for setting the workpiece W at a predetermined position, is fitted into the cutout hole 24 of the pallet body 8. A large number of workpiece holders 25 are prepared, and various cutout holes 34 matching the shape of the workpiece W are formed in the center of the 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 provided on the pallet body 8 of the pallet P is
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 the reference plane provided on the processing platform on the For example, there are two finished surfaces 28 formed on both sides of the lower surface of the pallet body 8 in the height direction.
, and the front end surface 29F of the pallet main body 8 in the horizontal direction.
It can be constructed from a reference metal fitting 29 provided on one side and a reference metal fitting 30 provided on one side 30S. The finished surfaces 28 are parallel to each other and have the same height. Furthermore, the reference fitting 29
．． It is preferable that the pallet 30 is made of a rust-proof and wear-resistant material such as ceramics or cemented carbide, and is attached to the pallet body 8 so as to be replaceable.

The reference surface 29 of the reference fitting 29 provided on the front end surface 29F and the reference surface 30 of the reference fitting 30 provided on one side 303 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 ring of the through hole 24 is perpendicular to each finishing surface 28. In order to set it at a predetermined position, a reference surface 29K is formed as a reference means that matches a positioning stopper having a reference surface as a machining reference positioning means provided in the wire electric discharge machine l. It should be noted that each positioning stopper provided in processing machine group 1.2.3 is preferably made of a rust-resistant material such as ceramics or carbide material and is highly wear-resistant. Replaceably installed.

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 diagram,
The two recesses 33 are pin holes, and the intermediate transfer device 7
A common operating pin provided on the lifter engages, and by engaging the operating 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.
A common locking pin provided on the intermediate transfer device 7 engages with the locking pin.

Next, a working table apparatus for a wire electrical discharge machine and a small hole electrical discharge machine according to the present invention will be explained with reference to FIGS. 7 to 16. Fig. 7 is a side view of the processing table portion of the wire electric discharge machine, Fig. 8 is a front view of Fig. 7, Fig. 9 is a plan view of the processing table portion of the wire electric discharge machine, and Fig. 10 is a side view of the processing table portion of the wire electric discharge machine. Figure 11 is a partial plan view of the wire electrical discharge machine, and Figure 12 is a partial cross-sectional view of the clamping device.
3 is a perspective view of the processing tank cover device, FIG. 14 is a sectional view of FIG. 13, FIG. 15 is a plan view of the processing tank cover device, and FIG. 16 is a side view of the fifteenth embodiment.

In this FMS, the wire electrical discharge machine 1 is equipped with an automatic wire electrode supply device, a wire electrode exchange device, and a work piece removal device (No. 44 45), etc. can be provided. Wire electrical discharge machining Ill in this FMS has a mechanism for loading and unloading the pallet P onto the processing table 75, and a mechanism for loading and unloading the pallet P onto the processing table 75, compared to the conventional one.
Since the configurations are almost the same except for the fixing mechanism of P and the processing tank 76, 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 machine 1
When preparations for machining 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 housed in the shelf 19 of the wire electric discharge machine 1 and the rack 4. The pallet P is loaded into the wire electrical discharge machine 1 in which the pallet P is loaded with the completed workpiece W, or the pallet P with the workpiece W whose start hole has been machined in the small hole electrical discharge machine 2 is carried in. Once set, the wire electrical discharge machine 1 is operated to perform electrical discharge machining on the workpiece W into a predetermined machining shape. When the wire electrical discharge machining of the workpiece W is completed, the pallet P carrying the workpiece W is stored in a predetermined position 1119 of the rack 4 by the stacker crane 6, or is carried out to the base, that is, the setup station 36. Ru.

In the wire electric discharge machine 1, the workpiece W is placed on each pallet P.
The pallet P is automatically carried in and out by the intermediate transfer device 7 onto a processing table 75 fixed to a jig base 74 mounted on an X-Y table in an electrically insulated state. .

This wire electric discharge machine 1 includes a filtration device 21 for filtering the machining fluid used during electric discharge machining, and a pallet press for carrying the baren P from the intermediate transfer device 7 to the machining table 75 and pushing it into 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 of the wire electric discharge machine 1 in an electrically disconnected state, and a machining tank 76 is attached to the jig base 74.
A processing tank cover device 79 is provided inside the processing tank 6 . Furthermore, a pair of processing tables 75 serving as position reference means are fixed to the upper surface of the jig base 74. A clamping device 78 and a pallet pressing device 77 are attached to these processing tables 75, located on both sides of the JijiL base 74.

The processing table 75 in this wire electric discharge machine 1 will be explained with reference to FIGS. 7 to 12. 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 wire electrode W is configured to move along with the horizontal movement of the table servo-moved by the C device.
The position relationship is determined in advance with respect to the travel path on which E travels. 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 movable up and down relative 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 pallet P is pressed. Each is fixed and rotatable. These guide rollers 83 function to smoothly move the pallet P with respect to the processing table 75. In other words, the connecting bar 82 is connected to the guide rollers 8 provided at both ends.
It is supported by 6A and can be moved up and down by the operation of cylinder 78C. In addition, at the upper end of the processing table 75,
A reference metal fitting 81, which is a positioning member, is set. 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, thereby guiding the pallet P when loading and unloading the pallet P. conduct.

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 electric discharge machine 1, the pallet pressing device 77 that presses the baren (P) to a predetermined position in the forward direction of the processing table 75 is used to press the reference surface 29K of the baren (P) against the positioning stopper 84 provided on the processing table 75. , cylinders 86 provided on the processing table 75 are provided on both sides of the processing table 75. In addition, the pallet P is placed on the processing table 75.
The pallet pressing device 77A presses the reference surface 30K on the side surface of the pallet P to a predetermined position in the side direction of the processing table 7.
A cylinder 88 is provided on the processing table 75 in the longitudinal force direction of the processing table 75 in order to press against the positioning stopper 87 provided on the processing table 5.
have. 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 into the cylinder. 86.8
Move back and forth within 8.

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 rod 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 rotating shaft 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 and presses the end of the pallet P, as shown by the solid line in FIG. It turns out. 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.

Furthermore, in the pallet pressing device 77A that presses the fallen end of the pallet P against the positioning stopper 87 of the processing table 75,
Piston rod 8 fixed to piston inside cylinder 88
The end portion of the pallet P is configured to be able to come into contact with one side of the pallet P. Therefore, when the cylinder 88 operates 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 pushes the reference metal fitting 30 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 pallet 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 positioning the cylinder (ballen) P on the processing table 75, the cylinder 78C is operated in the opposite direction to the above, and the connecting bar 82
is moved downward, the upper surface of the guide roller 83 is lowered below the reference surface 81S of the reference fitting 81, and the guide roller 83
to prevent it from becoming an obstacle to positioning. Therefore, the finished surface of the lower surface of the pallet P, that is, the reference surface 28 is the reference metal fitting 81.
By contacting the reference surface 81S, the pallet P is accurately and reliably positioned in a predetermined height direction with respect to the processing table 75.

Further, in this wire electric discharge machine 1, the pallet P is mounted on the processing table 75 of the wire electric discharge machine 1 by a clamping device 78.
is fixed by a plurality of clamps 85, and has edges on both sides pressed by the clamps 85. This clamping device 78 is particularly illustrated in FIGS. 8, 9, 11, and 12. This clamp device 78 has a bracket 78 attached to the side of each processing table 75.
They are respectively attached to each other via B, and are located opposite to each other on both sides of the pallet P, and have the function of fixing the barens (P) on the processing table 75. The clamping device 78 includes a cylinder 78C that is arranged on the side of the center of the connecting bar 82 and fixed to the processing table 75 with a bracket 78B.
The piston door 8R1 is fixed to the piston 78P which moves up and down by the operation of C, and a clamp 85 is attached to the upper end of the piston door 8H and located above the connecting bar 82.

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 rod 78H has a through hole 8 provided in the clamp 85.
The clamp 85 is fixed to the piston iron door 8H by passing through the piston iron door 8H and screwing a nut 85N into a threaded portion formed at the upper end of the piston iron door 8H.

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 8H 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, the machining tank cover device 7
9 is particularly shown in FIGS. 13, 14, 15 and 16.

This machining tank cover device 79 is
- Processing tank 76 attached to jig base 74 on Y table
When the workpiece W is subjected to wire electric discharge machining, it prevents machining fluid, machining debris, etc. from scattering, or functions as a guard for safety. The processing tank cover device 279 includes a cover 93 attached to the air cylinder 92 and the processing tank 76.
, a manual opening/closing cover 94C2 disposed 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 a loading/unloading entrance for the pallet P. The processing tank cover device 79 includes an air cylinder 92 that is an actuator that slides a slide cover 80 for opening and closing the entrance/exit of the pallet P on 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 magnetic material is disposed within the cylinder of the air cylinder 92.
The piston 95 reciprocates within the air cylinder 92 by supplying air to either side of the piston 95 within the air cylinder 92. 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. Regarding the reciprocating mechanism of the slide cover 80, an air cylinder 92 and a piston 95 that reciprocates within the air cylinder 92 are arranged below the processing tank cover device 79. Air passage 9 provided in the section
This is achieved by supplying air to either one of 7. A cover guide 96 is fixed to the cover 93,
A guide roller 98 is attached to the cover guide 96. In addition, the slide cover 80 has a guide rail 99.
are fixed, and a guide roller 98 fits into the guide rail 99. Furthermore, a bracket 80B is fixed to the lower end of the slide cover 80.
A bracket 80M made of a magnet is fixed to the end of 0B. This bracket 80B is attached to the air cylinder 92
It attracts a piston 95 made of a magnetic material that reciprocates within the air cylinder 92, and reciprocates 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 as the piston 95 moves. When the bracket 80M reciprocates, the bracket 80B reciprocates. The slide cover 80 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.
is in the open state, and upon receiving the detection signal, the controller controls the pallet P located in the intermediate transfer device 7 to be moved onto the processing table 75 of the wire electric discharge machine 1, or , ballen on the processing table 75) P
The closed end sensor 80E detects the closed state of the slide cover 80, and the controller operates the wire electric discharge machine 1 in response to the detection signal. Control as follows.

Furthermore, regarding the wire electric discharge machine 1 in the FMS according to the present invention, in particular, the reference surface 81S which is the upper surface of the reference fitting 81 which is a positioning member arranged on the processing table 75, and the back surface of the pallet body 8 of the pallet P are formed. a reference surface 28 that is a finished surface, a reference surface 29F of a reference fitting 29 placed on the front end surface of the pallet body 8, a reference surface 30K of a reference fitting 30 placed on the side end surface of the pallet body 8, and a processing table 75.
A reference surface cleaning device is provided in order to clean the reference surfaces 843 and 873 formed on the positioning stopper, that is, the reference fittings 84 and 87 provided in the reference fittings 84 and 87. This reference surface cleaning device can be configured with a water jet nozzle that sprays water on the cleaning surface and an air spray nozzle that sprays air to eliminate fine 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 baren P is set or at a predetermined period, so that the setting of the baren P on the processing table 75 is always reliable and does not adversely affect the 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, the slide cover 80 of the machining tank cover device 79 provided in the wire electric discharge machine 1
is opened, the cylinder 78C of the clamp device 78 is operated to raise the clamp 85, and the cylinder 86A is operated to raise the connecting bar 82. The rise of the connecting bar 82 causes the guide roller 83 to rise. In this state, the lifter 100 of the intermediate transfer device 7 (to be described later) sends the plate (P) onto the processing table 75. At this time, the upper surface level of the guide roller 83 is the same as that of each roller provided on the lifter 100 of the intermediate transfer device 7 (to be described later). It is preferable to be at the same level as the top surface level.

Thereafter, the push-pull arm 101 of the lifter 100 moves forward and pushes the pallet P onto the processing table 75.Then, the lifter 100 of the intermediate transfer device 7 lowers slightly, and the operating pin provided on the push-pull arm 101 pushes the pallet P onto the processing table 75. 170 is removed from the recess 33 formed in the pallet P, and then the push-pull arm 101 is retracted. At this time, the solenoid pulp of the cylinder 86A is brought to the neutral position by a command from the controller, and the solenoid pulp of the cylinder 86A is lowered by the weight of the barrel P, 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 baren (P) is placed in 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 pallet P for processing. It is pressed against the reference surface 84S of the positioning stopper 84 of the stand 74.

The front end surface of the pallet P is set in position by the action of the pallet pressing device 77, and then 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 rond 89. Processing table 75
is pressed against the reference surface 30K of the reference metal fitting 30 provided at , and the side end surface of the barrel l-P is positioned on the processing table 75. After positioning the pallet P on the processing table 75 in this way, the clamp device 1f78 is activated to press the baren) P,
The reference surface 28 on the lower surface of the pallet P is brought into contact with the reference surface 813 of the reference metal fitting 81 of the processing table 75 in a pressed state, and the
If the pallet P is fixed on the processing table 75, the pallet P can be fixed on the processing table 75.
can be set at a predetermined processing position. 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, the processing table 75
When the position setting of the pallet P is completed, the slide cover 80 of the processing tank cover device 79 slides to close the loading/unloading entrance for the pallet P.

In this state, the wire electrical discharge machine 1 operates and the pallet P
After the automatic wire feeding device inserts the wire into the workpiece W set in advance, 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 supply device cuts the wire, and then the machining tank cover device 7
9 operates, the slide cover 80 slides, and the pallet P
6. Next, the pallet pressing device 77
is operated in the opposite direction to move the pressing arm 91 backward as shown by the chain line in FIG. 26, and the pallet pressing device 77A
is inactivated to eliminate the pressing force of the piston rod 89. Furthermore, clamp equipment? Activate &78 to clamp 8
5 and the guide roller 83 is raised to place the pallet P on the guide roller 83.
The intermediate transfer device 7 operates and transfers the baren) P to the processing table 75.
from there to the intermediate transfer device 7.

(Hereinafter, this page margin) Next, each device that can be used in each of the above units of this FMS, that is, the rack 4, the stacker crane 6, the setup indexing device 9, the rust prevention treatment device 10, the fluid spraying device 12, the middle Delivery device 7, pipe electrode exchange bag 22c of small hole electric discharge machine 2, workpiece removal device 130 of wire electric discharge machine 1
The processing tank device 79, the processing table device of the die-sinking electric discharge machine 3, the processing tank bag f79, etc. will be explained below.

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 vertically arranged to store 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 traveling path 5 side for guiding the upper part of the stacker crane 6.

Furthermore, this FMS includes figures 17, 18 and 19.
As shown in the figure, a setup indexing device 9 is provided on the mousse 36 of the setup station. FIG. 17 is a plan view showing an example of a setup indexing device that can be used in this FMS, FIG. 18 is a front view of FIG. 17, and FIG.
It is a front end side view of a figure.

At this setup station, as shown in Figure 55,
As a setup indexing operation, a setup schedule is created and setup for mounting a workpiece W on the baren 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. Barre 7)
When the installation work of setting the workpiece W in a predetermined position on the P is completed, the stacker crane 6 is operated again to store the pallet P with the workpiece W set on the shelf 19 of the predetermined rack 4. The pallet P with the object 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 the predetermined rack 4 by the operation of the stacker crane 6, or is carried out to the setup station. A command for unloading is issued to the barn (P) to which the workpiece W that has been completed has been attached, and the stacker crane (6) is operated to transport the barn (P) to the setup station. Workpiece W from pallet P
The work to remove the workpiece W, that is, the product, is carried out to a predetermined location, but 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 6-setup station,
The above operations are repeated.

In order to be distantly related to each of the above-mentioned operations, this setup indexing device W9 is a device that mounts a workpiece W on a pallet P and positions it, and allows the pallet P to be carried into and out of the stacker crane 6 in a predetermined positioning state. In the figure, two 0 setup indexing devices 9 are provided. For example, one setup indexing device 9 is configured exclusively for carrying in pallets P, and the other setup indexing device 9 is configured to carry in pallets P. The traveling trolley 37 of the 0-setup indexing device 9 can be configured exclusively for carrying out
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 on 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 around 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 a distance of 360'' on the rollers 40. Furthermore, the rotational movement of the pallet mounting base 11 is configured to be able to rotate into four equal parts by manual indexing or automatic indexing, and is configured to confirm the origin of the rotational movement using a limit switch or the like.

Further, a stopper bin 39 is provided on the traveling carriage 37, and the stopper bin 39 is configured to be able to be engaged with a engagement member 42 provided on the pallet mounting base 11. Therefore, if the stopper bin 39 is locked to the locking member 42, the traveling truck 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, and the locking pin is attached to 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 loaded onto the pallet mounting base 11 with a forklift or the like, and the pallet 7) is moved onto the traveling trolley 37 by hand or with an appropriate turning device. When rotated, the pallet mounting base 11 is rotated to a predetermined position I with respect to the traveling carriage 37, and the locking member 42 of the pallet mounting base 11 is rotated to a predetermined position I relative to the traveling carriage 37.
7, the pallet mounting base 11 is stopped at a predetermined position on the traveling carriage 37.

Next, the moving device F41 is driven to move the traveling cart 37 toward the traveling path 5 side. Therefore, the traveling truck 37 waits, and when the stacker crane 6 moves along the traveling path 5 and comes to the setup station, the pallet P on the pallet mounting base 11 is carried in by the fork 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 access device, will be omitted. The stacker crane 6 will be described below with reference to FIGS. 20 to 29. Fig. 20 is a schematic front view showing the stacker crane as a whole, Fig. 21 is a side view of Fig. 20, Fig. 22 is a perspective view schematically showing the stacker crane, and Fig. 23 is mounted on the stacker crane. Fig. 24 is a front view showing the lower part of the stacker crane, Fig. 25 is a front view showing the upper part of the stacker crane, and Fig. 26 is a cross section showing the transmission mechanism of the fork device of the stacker crane. 27 is a front view of the fork device, FIG. 28 is an explanatory view showing the fork device in an extended state, and FIG. 29 is an explanatory view showing the fork device in a contracted state.

As shown in FIGS. 20 and 21, the stacker crane 6 includes a traveling cart 44 that reciprocates on a mole rail 18 provided with stoppers 6S at both ends of the traveling path 5 by driving a traveling device 57, and 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 bag 247 attached to the mast 45.

In order to prevent the upper saddle 46 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. 22).

Further, as shown in FIGS. 23 and 25, 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 pallet P thereon. ing.

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 parts of these carriages 52, and chains 54 are respectively hung on the guide rollers 55. Also,
As shown in FIGS. 22 and 23, 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 device 50 on the fork mousse 51 moves up and down.

Next, the fork device 50 will be explained with particular reference to FIGS. 26 to 29. FIG. 26 is an explanatory diagram schematically showing a fork device and a drive device for the fork device, FIG. 27 is a sectional view showing details of the fork device, FIG. 28 is an explanatory diagram showing the fork device in an extended state, and FIG. FIG. 2 is an explanatory diagram showing a contracted state of the fork device.

This fork device 50 is configured to be extendable and retractable in order to place a pallet P thereon 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 that is slidable on the proximal fork 58, a distal fork 60 that is slidable on the intermediate fork, and an intermediate fork 59. It has a drive device 63 that telescopically slides the tip fork 60 and the tip fork 60. In particular, this fork device 50 is provided with a locking pin 67A and a support pin 67B at both ends of the distal fork 60. The locking pin 67A is located in the recess 31 formed in the pallet P.
At the same time, the support pins 67B support the lower surface of the pallet to maintain the horizontal state of the pallet P. The locking pin 67A of the tip fork 60 is located in the recess 3 of the baren) P.
1, 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 in the stacker crane 6 moves up and down and expands and contracts, the pallet P remains accurately and reliably positioned without moving on the tip fork 60, and is held in a predetermined position with the tip fork 60. can be moved to the position of

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 onto the forward subroket 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 distal fork 60.
It is fixed at F. In addition, the rearward side chain 64R is a rearward side chain 64R provided at the tip of the intermediate fork 59.
5R, and the other end of the retreat side chain 64R is fixed to the tip side end 66R of the tip fork 60. Further, the drive device 63 rotationally drives a pinion 70 rotatably attached to the fork base 51 through a transmission device 71. Moreover, the rough black 1 is fixed to the lower surface of the intermediate fork 59 in a state extending in the longitudinal direction. This rough black 1 has a pinion 70 attached to the fork base 51.
are engaged. 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 tip fork 60.
A guide roller 69 is rotatably attached to the base end 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 device 50 is authorized and operates as follows. First, as shown in FIG. 28, when extending the tip fork 60 of the fork device 50, the drive bag 263 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 with respect to the proximal fork 58. The extension of the intermediate fork 59 causes the sprocket 65F attached to the intermediate fork 59 to be rotated by the chain 64F, thereby increasing the distance between the forward chain receiving member 62F and the sprocket 65F.
The distance between 5F and the proximal end 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 cause the tip fork 60 to extend.

Further, as shown in FIG. 29, 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. Binion 7
The rotational movement of 0 moves the rough black 1 to the retreating side in the longitudinal direction. When the rack 61 moves backward in the longitudinal direction, the intermediate fork 59 falls backward, that is, the base end 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, and connecting the chain 65R and the proximal end 6.
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 6o.

Therefore, if the stacker crane 6 is provided with a fork device 50 that telescopically moves with respect to one side of the traveling path 5 and a fork device W50 that telescopically moves 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 250, a fork device that rotates on the fork base 51 (not shown) may be provided, so that one fork device 50 can be used in only two directions. It is also possible to orient the fork device in any 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 pallet P that is located at a predetermined location.
Next, when the tip fork 60 is slightly raised, the locking pin 67A of the tip fork 60 engages with the recess 31 of the barrel P, and the lower surface of the pallet P is placed on the support pin 67B. If the tip fork 60 is retracted in this state, the baren (P) can be positioned on the fork base 51.Next, the traveling device 57 of the traveling cart 44 of the stacker crane 6 is driven, and the traveling device 57 is driven by the command of the controller. For example, the position of the setup indexing device W9, each intermediate delivery device 7 of various processing machines 1.23, the rust prevention treatment device 10
, the fluid spray is moved to the device 12 or to the shelf 19 of the rack 4. The fork device 50 is operated again to extend the tip fork 60 and move it to the location where the pallet P is placed. When the tip fork 60 is extended to the pallet P placement area, if the tip fork 60 is moved slightly downward, the locking pin 67A of the tip fork 60 that has been engaged with the recess 31 of the pallet P is released. In this state, the tip fork 60 is retracted, the fork device 50 is contracted to the state shown in FIG. 29, and the stacker crane 6 is moved to the next target location.

Therefore, this stacker crane 6 carries the baren) P received by the setup indexing device 9 to the rust prevention treatment device 10, the fluid spray Wf 12, the rack 4, or the intermediate delivery 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 7) P from the intermediate transfer device 7 that received the baren) P carried out from 3) and carry it to the intermediate transfer device 7 of another processing machine, or to the rack 4 or the setup indexing device W9. It can perform the function of exporting.

Furthermore, in this FMS, the rust prevention treatment device 10 is installed on a rust prevention stage provided in the pallet traveling system in order to apply rust prevention treatment to the workpiece W. Although the rust prevention stations may be installed anywhere in the pallet travel system, in the figure, two rust prevention stations are installed at the two openings 20 of the rack 4. Regarding this rust prevention treatment device 10, especially 13
This will be explained with reference to FIG. 2, FIG. 30, and FIG. 31. Third
Figure 0 is a front view of the rust prevention treatment equipment that can be used for this FMS.
and FIG. 31 is a side view of FIG. 30.

This rust-proofing bag W10 has a pallet support member 23 that moves up and down guided by a support 4P installed in the rack 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 baren (P) so that the locking mechanism 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 LOT contains a solution for rust prevention treatment.For example, one tank LOT contains a solution for removing mackerel that has occurred on the workpiece W, and the other tank LOT contains an anti-rust solution to prevent rust from forming on the workpiece W. In addition, in order to promote the rust removal effect in the tank IOT containing the rust removing solution, it is preferable to provide means for applying ultrasonic vibration to the solution. It is guided by guide means provided on the support column 4P of the station and moved up and down.

In addition, in this FMS, the fluid spray Wif 12 sprays fluid such as high-pressure air or high-temperature water to remove deposits such as machining fluid, foreign matter, and dust attached to the surface of the workpiece W in the pallet traveling system. It is set in. Although the fluid spraying device 12 may be provided at any location, 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. In order to prevent the fluid from scattering, it is preferable to provide a shank means for closing the opening 20, and the shutter means is controlled to operate according to a command from the controller. . When the pallet P is carried from the stacker crane 6 to the fluid spraying device W112, the shutter means is activated to open the shutter, and the pallet P is delivered to the pallet support member 25P provided in the fluid spraying device 12*2. 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 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 is opened again and the pallet P is carried out from the pallet support member 25P by the stacker crane 6.

As mentioned above, the anti-rust treatment bag 210 and the fluid spraying are carried out by the device F.
12 is configured as an example, the device 10.12
For example, the action of
The drive device flOD is activated to put the mackerel removal solution into the tank IOT to remove the mackerel generated on the workpiece W.Next, the pallet P is sprayed with fluid from the rust prevention treatment device 10 by the stacker crane 6. 12, and the fluid spraying involves blowing high-pressure air onto the surface of the workpiece W using the device 12 to blow away the mackerel removal solution adhering to the surface.
Again, the stacker crane 6 moves the ballen) P from the rust prevention treatment device F12 to the rust prevention treatment device 10, and puts it into the tank IOT containing the rust prevention solution in the rust prevention treatment device 10, and sprays the fluid against the workpiece W. In this case, when performing rust treatment, and immediately performing electric discharge machining after the rust prevention treatment on the workpiece W, the pallet P is moved from the rust prevention treatment device 10 to the fluid spraying device 12 by the stacker crane 6, and the cough fluid is The spraying device 12 blows high-pressure air onto the surface of the workpiece W to blow away the antirust solution adhering to the surface of the workpiece W, and the stacker crane 6 transports the workpiece W to the intermediate transfer device 7 of the processing machine group. Alternatively, after the rust prevention treatment, the pallet P on which the rust prevention treated workpieces W are placed is stored on the shelf 19 of the rack 4 by the stacker crane 6, or is carried into the processing machine 1.degree. 2.3.

Further, with respect to the wire electric discharge machine l, when wire electric discharge machining is performed on the workpiece W, machining waste or products machined into a machined shape are generated that are separated from the workpiece W. 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 is equipped with an upper mounting member 131 and a lower mounting member 132 on the head IH of the wire electric discharge machine 1.
Fixed by A dog 133 that passes through and guides a ball screw loft 135 that moves up and down is attached to the upper mounting member 131. This ball screw rod 135 has a ball spline groove 141 and a screw 1.
42 is formed. 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.

This gear 145 has a gear 1 that meshes with the gear 145.
A gear 146 that rotates around the outer periphery of 45 over 270 degrees is engaged with the gear 146.

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

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

A nut 149 is fixed to the nut rotation support holder 53 attached to the lower mounting member 132 and fixed to the sliding member 62, and a worm wheel 144 is fixed to the napft 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 ball mesh 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, the rotational movements of both cancel each other out, resulting in a stopped state, and only the ball rat rod 135 rotates.

Furthermore, an electromagnetic holder case 138 is attached to the lower end of the ball-sleeping rod 135. A ball screw 150 is attached to this electromagnetic holder case 138, and a ball screw rod 139, which is a second ball screw rod, is provided with a screw 151 that meshes with the ball screw 150, and extends through the electromagnetic holder case 138. A ball spline 152 is formed on this ball mesh rod 139. Furthermore, electromagnetic holder case 1
A servo motor 153, which is a third servo motor, is provided at 38 to rotate a worm wheel attached to the ball screw 150. Therefore, servo motor 1
53 is activated and the worm wheel of the ball screw 159 rotates, the ball screw rod 139 reciprocates in the horizontal direction with respect to the electromagnetic holder case 138. An electromagnetic holder 140 is attached to the tip of the ball screw rod 139, and a magnet such as an electromagnet is attached to the electromagnetic holder 140.

Since this work piece removing device 130 is authorized as described above, the ball screw rod 139 attached to the lower end of the ball screw rod 135 that moves vertically and rotates is integrated with the ball screw rod 135. In addition to being able to perform vertical and rotational movements, the ball screw rod 139 itself can move horizontally with respect to the ball screw rod 135, so the electromagnetic holder 140 attached to the tip of the ball screw rod 139 can move in a three-dimensional space. be able to move.

Therefore, this workpiece removal device 130! Magnetic holder 14
If the magnet 0 attached to the workpiece removal device 130 is set so that it protrudes from the workpiece removal device 130, it will not move against the upper surface of the workpiece W positioned at the barrel P of the wire electric discharge machine 1. You will be able to make contact. Therefore, immediately before the workpiece is separated from the workpiece W by a command from the controller, the workpiece removing device 130 is activated to
If the magnet is brought into contact with the workpiece and the workpiece is attracted, the workpiece will not fall, and then the workpiece attracted to the electromagnet 140 will be moved upward and stored in a predetermined workpiece storage location. Therefore, the work piece separated from the workpiece W does not damage the machined surface, and the work piece can be removed.

Next, regarding the small hole electrical discharge machining 112 in the processing machine group,
This will be explained with reference to FIGS. 32 to 36.

Fig. 32 is a plan view of the small-hole electric 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.

This small-hole electrical discharge machine 2 uses a pipe electrode PE to cut a small hole into a workpiece W preset on a pallet P, in contrast to the wire electrical discharge machine 1 described above. This is for machining a start hole for penetrating the WE, and for the device for positioning the pallet P on the processing table and the processing tank cover device, the same device as the wire electric discharge machine 1 described above can be used. It is something.

Therefore, here, a redundant explanation of the structure and operation of the above device will be omitted, 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 Application Publication No. 1-246021 for this FMS, the pipe electrode exchange device described below is preferable.

The machining operation of this small-hole electric discharge machine 2 can be performed, for example, as shown in FIG. 55. 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 moves the small-hole electrical discharge machine 2 to the machine 4.
A small-hole electric discharge machine 2 is used to transport a pallet P loaded with a workpiece W to be machined into a predetermined shape by wire electric discharge machining, which is housed in a shelf 19 of When the pallet P is set on the electrical discharge machine 2, the small hole 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 for the workpiece W is completed, the valley/)P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or is placed in the wire electric discharge machining Ill. will be transported to.

This small-hole electrical discharge machine 2 is equipped with a pipe electrode exchange device 2C. This pipe electrode exchange device F2c can use a conventionally used pipe electrode PR,
An index table 102 in which one index confirmation notch 102C is formed in order to index a large number of pipe electrodes PE.
and a chuck pallet 10 that supports the pipe tiPE
5. This chuck pallet 105 is configured to be replaceable with respect to the index table 102. 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.
05 and the center point of the support hole 103 are divided into states. The diameter of the support hole 103 is formed larger than the outer diameter of the pipe electrode PE0 and the cap nut PEN. The chuck pallet 105 has a mounting reference hole 108 in the center thereof for mounting the chuck pallet 105 to the index table 102, and a mounting reference hole 10.
There are equally divided tightening holes 106 (
(four in the figure), and an indexing origin fI recognition hole 107 for confirming the indexing origin of the pipe electrode PE. In addition, the center point of the chuck 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 index origin confirmation hole 107 is configured so that the index origin can be confirmed by matching with the index fI 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 machine 2 has a mechanism for inserting an electrode holder of a pipe electrode PE supported in a support hole 103 of a chuck pallet 105 into the upper shaft 111 thereof, and
It has a mechanism for moving from a standby position to a center position of the main shaft 111 of the small hole electrical discharge machine 2. The center of this main axis 111 is the center of the pipe electrode PE and is the center point during processing. The above insertion mechanism is a pipe electrode exchange tube WIL.
The chuck pallet 105 provided at 2C is controlled by a vertical movement cylinder 112 that moves the chuck pallet 105 up and down. Further, a moving mechanism for moving the chuck 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 a zero indexing device which has an index origin confirmation means of the chuck barre 105 and an existence confirmation means for confirming whether or not the pipe electrode PE is present in the support hole 103. The origin confirmation means is composed of a photoelectric switch 114 attached to a frame 116 that supports the stepping motor 109. Further, the presence/absence checking means includes a photoelectric switch 115 that is attached to the 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. There is.

Since the pipe 1i8i exchange device 2C is constructed as described above, it can operate as follows. When attaching the pipe electrode PE to the main shaft center 111 of the small-hole electrical discharge machine 2, the stepping motor 109 is operated to rotate the chuck pallet 105, and the pipe electrode PE is attached using the photoelectric switch 114, which is an indexing origin confirmation means. Support hole 1
Next, the support hole 1 facing the spindle center 111 is determined by the charging switch 115, which is the presence/absence checking means.
Confirm that the pipe electrode PE is supported by 03,
If the pipe electrode PE is present in the support hole 103, the pipe electrode PE is moved to the main axis center 11 by the operation of the forward and backward moving cylinder 113.
Move it to position 1. Since the main shaft of the small hole electric discharge machine 2 is provided with a pipe electrode holder, the vertical movement cylinder 112 is operated to raise the indexed pipe electrode PE of the chuck pallet 105, and the pipe electrode holder of the main shaft 111 is moved upward. Insert into 2H. When the pipe electrode PE is inserted into the vibe electrode water 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.
Operate the cylinder 113 that moves back and forth to replace the pipe electrode v
Retract to the standby position of taf2C.

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 ball is used. ) 105 support hole 10
3, confirm that there is no pipe electrode PE using the charging switch 115, which is the 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 0 o'clock, electrode holder P
Pass the pipe electrode PR remaining in the EH through the notch 104 of the support hole 103, and position the support hole 103 below the pipe electrode PE. Next, move 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-hole electrical discharge machine 2, the above-mentioned pipe electrode exchange operation is automatically repeated to replace a large number of pipe electrodes PE loaded in the chuck pallet 7) 105 with a consumable pipe electrode PE.
By replacing the pipe electrode PE in the small hole electric discharge machine 2 with a new one, it is possible to automatically and continuously perform small hole electric discharge machining on the workpiece W.

Note that the automatic attachment and detachment mechanism for the pipe electrode holder and the pipe electrode PE in the small hole electric discharge machining 112 can use a conventional pipe electrode exchange mechanism, but for example,
It is preferable to use the pipe electrode holding device disclosed in Japanese Utility Model Application Publication No. 1-143321. The #i pipe electrode holding device is described in detail in Japanese Utility Model Application Publication No. 1-143321, so its explanation will be omitted here.

Next, the die-sinking electrical discharge machine 3 among the group of processing machines 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. Die-sinking electric discharge machining 1113 in this FMS is almost the same as the conventional one, except for the mechanism for loading and unloading the barn P onto the processing table, the mechanism for fixing the pallet P to the processing table, and the processing tank. Since it is the authority of
In particular, the different devices mentioned above will be explained. Further, in the drawings, the same reference numerals are given to the die-sinking electric discharge machine 3 to parts having the same S function as compared to the wire electric discharge machine.

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 machining 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. A work is carried out to carry in the pallet P1 on which the workpiece W currently being machined is set, or the pallet P on which the workpiece W that has been machined by the wire electric discharge machine 1 is set. When the pallet P is set in the die-sinking electrical discharge machine 3, the die-sinking electrical discharge machining 113 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 list rack 36. Ru.

In this die-sinking electrical discharge machine 3, the workpieces W are set in advance on each pallet P, and the pallets P are mounted on a jig base 74 that is electrically insulated on the X-Y table.
The intermediate transfer device 7 and the elevating device 122 automatically carry the material into and out of the processing table 75 fixed to the processing table 75 . This die-sinking electrical discharge machining II 3 includes a filtration device 2L that circulates and filters the machining fluid used during electrical discharge machining, a pallet support member 120 that supports the pallet P from the intermediate transfer device 7; Pallet support member 1
20 in the processing tank 76 and move the baren) P up and down. A device 122, a clamp device 78 provided on the lifting device 122 for fixing the pallet P on the pallet support member 120, and a clamp device 78 provided on the lifting device 122 to place the pallet P lowered by the lifting device 122 on the processing table 75 and clamp the end of the pallet P. A processing tank device F79K is provided, which has a pallet pressing device 77.77A that presses and sets the position, and a processing tank device F79K that has an openable/closable door 80D for accommodating the processing fluid provided in the processing tank 76K attached to the jig base 74. There is. A jig base 74 is fixed in an electrically disconnected state on the X-Y table in die-sinking electrical discharge machining II3, and a processing tank 76K is attached to the jig base 74.
is installed.

In addition, on the top surface of the jig base 74 or the bottom wall 76B,
A pair of processing tables 75 serving as position reference means are fixed. The jig base 74 has WRg/! of the processing table 75. A clamping device 78 located at is provided. A pallet pressing device 77° 77A is attached to the processing table 75 in order to fix the loaded barn I-P in a predetermined position.

The pallet support member 120 includes a connecting bar 82 fixed to a piston rod 82P that moves up and down within the cylinder 121.
The multi-connection bar 82, which is a supporting roller (three on each side is shown in the figure) attached to the rollers, guides the side and top surfaces of the pallet P when the pallet P is positioned by the pallet pressing device 77, 77A. Therefore, the guide roller 12
6 is provided.

The processing table 75 in this die-sinking electrical discharge machine 3 is fixed to the jig base 74 so as to extend corresponding to both ends of the pallet P 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.
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 its positional relationship with respect to the traveling 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 device 122 so as to be movable up and down with respect to the processing table 75
2, when pressing the pallet P, the ball +-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 in the left-right direction.In each cylinder 121 on both sides, each connecting bar 82 arranged on both sides is connected to a bra cover 82B. It is installed through.

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,
This ranges from the height at which the pallet P is carried in and out of the intermediate transfer device 7 to the height at which the die-sinking process is set on the processing table 75. A shaft 82S is rotatably attached to a portion a of the connecting bar 82 via a bracket 82c. Binions 124 are attached to both ends of the shaft 82S.

On the other hand, racks 82R are provided on both sides 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, when the connecting bar 82 moves up and down due to the operation of the four cylinders 121, the binions 124 engage with each other on the rack 82R and move up and down, so the bracket 82B, which moves up and down due to the operation of the four cylinders 121, operates synchronously. However, the connecting bar 82 can now move up and down in a horizontal state.

In this die-sinking electric discharge machining 4II3, when the pallet P is carried in and out, the connecting bar 82 is moved by the operation of the cylinder 121.
is slightly moved upward to release the fixed state of the bar (P) of the clamp 85, so that it can be carried out by the intermediate transfer device 7, or the pallet P from the intermediate transfer device 7 can be carried in. Further, on the upper end of the processing table 75, that is, on the base, a reference fitting 81 for setting the position in the vertical direction, which is the positioning stopper 7, is attached (FIG. 38).
&The upper surface of the semi-metal 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 pallet P is brought into contact with the reference 1i781s of the processing table 750 reference fitting 81.
When positioning the cylinder 121 on the processing table 75,
to operate the clamp device f78 and clamp 85.
Press the pallet P downward. Therefore, the finished surface of the lower surface of the baren 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 accurately and reliably positioned in a predetermined height direction with respect to the processing table 75. will be done. Further, a magnet 125 is attached to a portion of the connecting bar near the reference surface 28, which is pressed toward the pallet P by the spring force of a spring and can sink against the spring force when pressed in the forward direction. 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 machining @3, pallet pressing devices 77.77A are installed on the reference surfaces 29 and 30 of the pallet P.
The positioning stopper 84.8 provided on the processing table 75 by
Pressed to 7. A pallet pressing device 77 that presses the pallet 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 86G 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 baren) P to a predetermined position in the side direction of the processing table 75.
The reference surface 30K on the side surface of the pallet P is the reference surface 87S of the positioning stopper, that is, the reference fitting 87 provided 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 88 have fluid chambers formed on both sides of the piston that reciprocates within the cylinders, and when fluid is introduced into the fluid chambers on either side, the piston moves into the cylinder 86C.
, 88.

In the pallet pressing device 077 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. It is configured. Therefore, when the cylinder 86C operates 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, presses the pallet P in the front direction, and attaches the reference metal fitting provided on the front surface of the pallet P. By bringing the reference surface 29S of No. 29 into contact with the reference surface 84S of the reference 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 a positioning stopper, that is, a reference fitting 87, the end of a piston rod 89 fixed to a piston in a cylinder 88 is connected to a baren) P.
It is configured so that it can be brought into contact with one side of the. 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 30 provided on the side surface of the pallet P. By bringing the reference surface 30K of the machine into contact with a positioning stopper 87 provided on the processing table 75, the baren) P can be positioned at a predetermined position on the side.

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 a clamp device 78, and has edges on both sides that are pressed by the clamps 85. The clamp device W78 includes a piston rod 82P that moves up and down by the operation of four cylinders 121.6, a connecting bar 82 on both sides fixed via a bracket 82B attached to the piston rod 82P, and a center of the connecting bar 82. It consists of a clamp 85 attached to the section. 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 clamp device 278 is provided with a pallet fixing sensor and a pallet release sensor (not shown) in order to detect when the cylinder 121 is actuated to fix or release the baren (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 baren (P) onto the processing table 75 and fixes the baren (P) on the processing table 75. In addition, the clamp device t! Moving the clamp 85 of 78 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 F79 includes an X-Y
It has a machining tank 76K attached to a jig base 74 on the table, and is filled with machining fluid when die-sinking electrical discharge machining is performed on a workpiece W. 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 7
It is composed of 6R1 side walls 76S and a bottom wall 76B which is a sub-base attached to the jig base 74. The notch 80A of the front wall 76F is a door 80D that can be opened and closed.
It is configured to be closed by. The processing tank device 79 has openings 80 formed in each of the walls forming the processing tank 76K and the front wall 76F for loading and unloading the pallet P.
A. Front wall 76 for sealing or opening the opening 80A
It has an opening/closing door 80D that can move downward when opened relative to F, a cylinder 92A for moving the opening/closing door 80D up and down, and a vertical movement mechanism that moves the opening/closing door 80D up and down by the operation of the cylinder 92A. In the processing tank device 79K,
The vertical movement mechanism of the opening/closing door 80D is the opening/closing door 80D for opening and closing the opening 80A.

A guide post 127 is installed on both sides of opening/closing #80D and is fixed to the front wall 76F, a cylinder 921 is attached to the upper end of the guide post 127, and a piston rod 95P is fixed to a piston that reciprocates in the vertical direction within the cylinder 92A. It is attached to the lower end of the piston rod 95P and can be opened and closed 1.
It consists of a bracket 92B fixed to the lower part of fi80D.

That is, the cylinder 92A and the piston rod 95P function as an actuator that moves the opening/closing jff180D up and down.

Furthermore, in the vertical movement mechanism of the opening/closing door 80D, the guide column 127 functions as a guide for the opening/closing door 80D, and the guide groove 118 formed in the guide column 127 has a guide for opening/closing!
80D is engaged with guide rollers 117 provided at the upper and lower portions of both sides (Fig. 43).A bracket 76B is fixed to the guide column 127, and the bracket 76B has a piston port and a door 80P that operates. When the piston rod 80P protrudes due to the operation of the cylinder 80C, the tip of the piston rod 80P functions to press the opening/closing door 80D against the front wall 76F. When the opening/closing door 80D is raised by operation and the opening 80A of the front wall 76F is closed by the opening/closing door 80D, the cylinder 80C is operated and the piston rod 80P opens/closes the opening/closing Jta 80D from the front wall 76.
Press it against the front of F. Further, a sealing material 80S is arranged between the opening/closing door 1i80D and the front wall 76F, and the opening/closing door 80S
Since 0D and the front wall 76F contact each other in a sealed state, it is possible to prevent the machining fluid in the machining tank 76 from scattering or leaking.

This processing tank device 79K is provided with an open end sensor that detects the open state of the open/close door 80D and a closed end sensor that detects the closed state of the open/close door 80D in order to detect the open/close state of the open/close #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 opening/closing door 80D is detected by the open end sensor.
Upon receiving the detection signal, the controller transfers the pallet P located in the intermediate transfer device 7 to the support member 120 of the die-sinking electrical discharge machine 3.
The opening M door 80D is controlled to move upward, or to move the baren) P on the processing table 75 from the pallet support member 120 to the intermediate transfer vtf7.
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 1i80D of the machining tank device 79 provided in the die-sinking electrical discharge machine 3, the cylinder 92A is activated to extend the piston rod 95P downward, and the opening/closing door 80D is lowered to open the opening 80A. do.

On the other hand, the pallet support member 12 is moved by operating the lifting device 122.
0, the cylinder 12 of the clamping device 78
1 to extend the piston rod 82P and raise the connecting bar 82. The rise of the connecting bar 82 moves the pallet P to the pallet support member 12 located above the processing table 75.
0 so that it can be transported. The push-pull arm 10 of the lifter 100 feeds the pallet P onto the pallet support member 120 by the lifter 100 of the intermediate transfer device 7
1 operates and moves forward, and the pallet P is supported by the pallet support member 1.
Push it on 20. Next, the lifter 100 of the intermediate transfer device 7 is slightly lowered, the locking bin 7P provided in the push-pull-out arm 101 is released from the recess 33 shaped like the pallet P, and then the push-pull arm 10 of the lifter 100 is removed.
1 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 pallet P from moving on the pallet support member 120. Thereby,
The reference surface 28 formed on the lower surface of the pallet P is placed in contact with the reference surface 81S of the reference fitting 810 of the processing table 75.

In this state, the pallet pressing device 77 is operated 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 77.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 the pallet P is positioned on the processing table 75 in this way, the clamp device f78 is operated to lower the clamp 85 slightly, and the clamp 85 is lowered slightly.
Press the pallet P against the processing table 75, and align the reference surface 28 on the lower surface of the pallet P with the reference surface 8 of the reference fitting 81 on the processing table 75.
1S in a pressed state, and the pallet 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, 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 positioning of the pallet P on the processing table 75 is completed, the cylinder 92A of the processing tank device 79A is activated and the opening/closing door 80D is raised, and the opening 80A of the front wall 76F is closed by the opening/closing door 80D. , Baren) P's loading/unloading entrance will be closed.

In this state, the machining tank 76 is filled with machining fluid, and die-sinking electric discharge machining [13 is activated 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 tank 76
After draining the machining fluid inside, the cylinder 92A of the machining tank device 79 is activated to lower the opening/closing jt80D and open the opening 8.
0A is opened to open the loading/unloading port of the pallet 7)P. Next, the piston rod 9 of the pallet pressing device 77.77A is opened.
0.89 is deactivated and retracted.

Furthermore, the cylinder 121 of the lifting device 122 is operated to raise the pallet support member 120, and the pallet P is raised.Then, the lifter 100 of the intermediate transfer device W7 is operated to move the pallet P from the pallet support member 120 to the intermediate transfer device. Move it to the 7 side.

Next, in the FMS in this processing machine group, in order to perform a pallet P delivery operation between each processing machine 1, 2.3 and the stacker crane 6, an intermediate The delivery 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 W7 mainly includes 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
A piston rod 172 that reciprocates therein, a roller-equipped truck 163 fixed to the Ht'' stone loft 172, and a slide rail 161 laid on a base 160 for the truck 163 to run under the action of a cylinder 159 are provided. The slide rail 161 extends in a horizontal direction perpendicular to the traveling path 5 of the stacker crane 6, that is, the traveling direction.

The trolley 163 includes a trolley frame 164 that reciprocates on a base 160, a receiving member 173 of a baren (P) formed on the upper surface of the cough trolley frame 164, a locking pin 168 protruding from the upper surface of the receiving member 173, and a locking pin 168 on the frame. It has a lifter 100 that is mounted on and can move up and down. Two receiving members 173 are rewritten upward and parallel to the slide rail 161. The upper surface of each member 173 is finished, and each member is configured so that the surfaces formed by the member 173 are on the same level, and are also parallel to the moving surface formed by the slide rail 161. has been done.

The lifter 100 is arranged between receiving members 173,
A cylinder 166 fixed to a frame 164, a piston rod 169 that reciprocates within the cylinder 166, and a lifter frame 165 fixed to the piston rod 169.
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 rod 172.

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

This intermediate delivery device f7 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, each drive is interlocked.

First, the cylinder 159 is actuated to move the cart 163 toward the stacker crane 6 side, that is, toward the traveling path 5 side.The stacker crane 6 carrying a predetermined pallet P is stopped 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 7.
The recess 32 of the pallet P is engaged with the locking pin 168 provided at the upper end of the frame 164 of the cart 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 pallet P is placed on the push-pull arm 101 with the operating pin 170 and the recess 33 engaged, and in this state, the cylinder 167 is activated, and the push-pull arm 101 is placed on the processing machines 1 and 2.
．． Move forward to the third side. By advancing the push-pull arm 101, 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 is inserted into the recess 33 of the pallet P.
depart from. Here, the cylinder 167 is actuated to retract the push-pull arm 101 toward the intermediate transfer device 7 and move it backward. The trolley 163 in the intermediate transfer device 7 waits on the processing machine 1° 2.3 side until the processing machine 1, 2.3 finishes electrical discharge machining on the workpiece W.

Next, when the electrical discharge machining on the workpiece W is completed in the processing machines 1, 2.3, a signal indicating the completion of the machining is received from the controller, and the slide cover 80.
After opening/closing #80D is completely opened, push/pull arm 10
The cylinder 167 of No. 1 is operated, and the push-pull arm 101 moves forward toward the processing machines 1 and 2. Push-pull arm 101
When the pallet P is inserted under the pallet P, the cylinder 166 of the lifter 100 is operated to raise the push-pull arm 101 mounted on the lifter 100. Concave portion 3 of pallet P
3, the operating pin 170 of the push-pull arm 101 engages with
The pallet P is mounted on the push-pull 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 trolley frame 164 of the intermediate transfer device 7, the cylinder 1
66 is activated and the lifter 100 is lowered. lifter 1
00 lowers, 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, and the pallet P is attached to the trolley. frame 164
The push-pull arm 10 is placed on top of the
The operating pin 170 of No. 1 is removed from the recess 33 of the barrel (P).

The push-in and pull-out arm 101 further descends to become the push-in and pull-out arm 1.
01 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 5o 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, and the locking pin 67A provided on the tip fork 60 locks into the recess 3 of the pallet P.
1, and the lower surface of the pallet P is engaged with the support pin 67.
B, and the locking bin 168 of the truck frame 164 is released from the recess 32 of the pallet P.

The fork device 50 is activated and the tip fork 6o 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 electrical discharge machine 1 and the intermediate transfer device 7, on the wire electrical discharge machine 1 side, fluid from a fluid pressure supply source such as a pump is supplied to a fluid pressure regulating device, a fluid switching valve, etc. through 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 device, 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 issues a command according to the operation process inputted in advance as a sequence in response to each detection signal, and outputs a command to the wire electric discharge machine 1 and the intermediate transfer device 7. is operated to carry the pallet 10 in and out of the wire electric discharge machine 1, and also to carry it in and out of the intermediate transfer device 7.

An example of the fluid circuit for the wire electrical discharge machine 1 and the intermediate transfer device 7 has been described above. A similar fluid circuit can be applied to the device 212 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 barre 7) P is set and the reference surface of the pallet P can be cleaned every time the pallet is set or at a predetermined period, and the barre 7) P can be cleaned accurately and at all times. It can be reliably set on each of the processing tables, and the accuracy of processing the workpiece can be improved.

〔Effect of the invention〕

The processing table device for a wire electrical discharge machine and a small-hole electrical discharge machine according to the present invention is configured as described above, and therefore has the following effects. S, the processing table device in this wire electric discharge machine and small hole electric discharge machine consists of a processing table mounted on a table, a horizontal reference means and a height reference means provided on the processing table, and a processing table mounted on the table. A processing tank device comprising a processing tank formed in the processing tank and a slide cover that can open and close a pallet entrance/exit formed in the processing tank, and a pallet with a workpiece set in a predetermined position placed on the processing table, and the horizontal reference means a pallet pressing device for horizontal positioning by pressing a reference surface on the side of the pallet;
and a clamp device that fixes the pallet to the processing table by bringing a reference surface of the lower surface of the pallet into contact with the height direction reference means, so that the pallet carried onto the processing table is moved by the pallet pressing device. By simply fixing the workpiece to the processing reference site using the clamp device, the workpiece can be set accurately, quickly, and unattended at the processing site of the processing machine. Therefore, the pallet can be carried into the processing machine using the pallet loading/unloading 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 processing, it can be automatically and unmanned from the processing machine and carried out from the processing machine group to an appropriate location using the pallet 7) carry-in/out device.

Moreover, if the pallet with a heavy load can be pressed and positioned at a processing reference position on 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, The pallet can be positioned automatically, accurately and reliably with a high degree of accuracy with respect to the processing table.

Furthermore, 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 performed in accordance with 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 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.

In this processing table device, the pallet pressing device includes a pressing arm that presses the rear end surface of the pallet and is rotatably attached to the processing table, a piston rod that rotatably attaches the pressing arm, and an actuator that extends and contracts the piston rod. and a lateral pressing means consisting of a piston rod that presses the end face of the pallet and an actuator that extends and contracts the piston rod. , a clamp provided on the connecting bar and an actuator for vertically moving the connecting bar, and the actuator is operated with the pallet being positioned on the processing table by the pallet pressing device. The position can be set by pressing the pallet to the processing reference position of the processing table, and if the clamp device is operated in conjunction with the pallet pressing device, the pallet can be positioned with respect to the processing table. Positioning can be performed automatically, reliably, and accurately with a high degree of precision.

Further, in this processing table apparatus, a reference surface cleaning device for cleaning the horizontal reference means, the height reference means, and the reference surfaces of the side and lower surfaces of the pallet provided on the processing table, The reference surface of the processing table on which the pallet is set and the reference surface of the pallet 7) can be cleaned every time the pallet is set or at a predetermined period, and the pallet can always be accurately and reliably placed on the processing table. The accuracy of machining can be improved.

The processing table device also includes a controller that moves the pallet into and out of the processing table in response to an open state of the slide cover of the processing tank and operates in response to a closed state of the slide cover. Therefore, the loading/unloading operation and the processing process can be performed accurately and reliably according to the predetermined operation process, 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.

In particular, this processing table device moves back and forth between a wide variety of processing machines, a rack with multiple shelves for storing pallets, a processing station where workpieces are treated to prevent rust, and a pallet loading/unloading station. During flexible manufacturing, a pallet with workpieces set thereon is delivered to each of the processing machines while maintaining the positioning state, and the workpieces on the pallet are automatically electrical discharge machined by each of the processing machines. Since it has been applied to a ring system, 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. If this is done, the workpiece can be set accurately, quickly, and unattended at the processing area of the processing machine by simply fixing the pallet carried onto the processing table to the processing reference area using a clamp device. . Therefore, for example, a pallet can be carried into the processing machine using a stacker crane and an intermediate transfer device, and a 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.

[Brief explanation of drawings]

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 V-■ of FIG. 4.
7 is a side view of the processing table of the wire electric discharge machine, FIG. 8 is a front view of FIG. 7, and 9
The figure is a plan view of the worktable part of a wire electric discharge machine, Figure 1O is a partial plan view of figure 9, Figure 11 is another side view of the workbench part of a wire electric discharge machine, and Figure 12 is a clamping device. Fig. 13 is a perspective view of the processing tank cover device, Fig. 14 is a partial sectional view of
The figure is a sectional view of Fig. 13, Fig. 15 is a plan view of the processing tank cover device, Fig. 16 is a side view of Fig. 15, and Fig. 17 is this F.
A plan view showing an example of a setup indexing device that can be used for MS, Fig. 18 is a front view of Fig. 17, Fig. 19 is a front end side view of Fig. 17, and Fig. 20 shows the entire stacker crane. Schematic front view, Figure 21 is a side view of Figure 20,
Figure 2 is a perspective view showing the outline of the stacker crane, Figure 23 is a perspective view showing the outline of the fork base mounted on the stacker crane, Figure 24 is a front view showing the lower part of the stacker crane, and Figure 25 is the stacker crane. 26 is a sectional view showing the transmission mechanism of the fork device of the stacker crane, FIG. 27 is a front view of the fork device, FIG. 28 is an explanatory view showing the fork device in an extended state, Figure 29 is an explanatory diagram showing the fork device in a contracted state, Figure 30 is a front view of the anti-rust treatment equipment that can be used in this FMS, Figure 31 is a side view of Figure 30, and Figure 32 is a small hole electric discharge machining. Fig. 33 is a side view of the vibrator electrode exchange device, and Fig. 34 is a line m of Fig. 32.
35 is a plan view of the index table, FIG. 36 is a sectional view taken along &11B-B 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, and Fig. 41 is a plan view of Fig. 40. FIG. 42 is a sectional view showing a part of the wall of the processing tank shown in FIG. 40, FIG. 43 is an explanatory diagram showing a part of the opening/closing door mechanism of the processing tank shown in FIG.
FIG. 44 is a schematic front view showing an example of a workpiece removal device attached to a wire electric discharge machine, FIG. 45 is a side view of FIG. 44, and FIG. 46 is a front view showing the intermediate transfer device as a whole. 47 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,
Fig. 50 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 shows 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 small hole electric discharge machine in this FMS, and FIG.
FIG. 57 is a block diagram showing an example of machining using a wire electric discharge machine in S, and FIG. 57 is a block diagram showing an example of machining using a die-sinking electric discharge machine in this FMS. i--Wire electrical discharge machine, 2.--111--Small hole electrical discharge machine, 3----One die carving electrical discharge machine, 4-------
Rack, 5-Traveling path, 6--Stanker crane, 7--Intermediate transfer device, 8, 79
A, ---Processing tank device, 9---Preparation indexing device, 10---Rust prevention treatment device, 12---111 Fluid spraying device, 19---1111 Shelf, 20 openings, 24
------Cut holes, 29, 30---One standard fitting, 28.29, 30, 81S, 84S. 87S・-11111 reference plane, 31.32.33-...
-・Concavity (locking means), 74・----Jig base (
table), 75... processing table, 76-...
・-Processing tank, 77.77A・--11-Pallet pressing device, 78-...-Clamp device, 79-・----Ipping tank cover device (processing tank bag f), 80-11 1--Slide cover, 81---Reference fittings (reference means)
, 82-----Connection bar, 84.87--Positioning stopper (reference means), 85---Clamp, 86.121--Cylinder (actuator), 89.90・---1--Piston rod, 91・
------Press arm, P--Pallet, W--Workpiece, W E-1--Wire electrode, P E--
- Vibrator electrode, RE-・- Die engraving electrode.

Claims (6)

[Claims] (1) A processing table mounted on the table, a horizontal reference means and a height reference means provided on the processing table, a processing tank mounted on the table, and a slide cover that can open and close the pallet entrance and exit formed in the processing tank. A processing tank apparatus equipped with a processing tank apparatus, in which a pallet with a workpiece set in a predetermined position is placed on the processing table, and a reference surface on a side surface of the pallet is pressed against the horizontal direction reference means to perform horizontal positioning. A wire electric discharge machine and a small hole electric discharge machine, each having a pallet pressing device for pressing the pallet, and a clamp device for fixing the pallet to the processing table by bringing a reference surface of the lower surface of the pallet into contact with the height direction reference means. Applicable processing table equipment. (2) The pallet pressing device includes a pressing arm that presses the rear end surface of the pallet and is rotatably attached to the processing table, a piston rod that rotatably attaches the pressing arm, and an actuator that extends and contracts the piston rod. Applicable to the wire electric discharge machine and small hole electric discharge machine according to claim 1, which comprises a directional pressing means and a lateral pressing means comprising a piston rod that presses a pallet side end face and an actuator that expands and contracts the piston rod. Processing table equipment. (3) 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 pallet to the processing table using the pallet pressing device. A processing table device applicable to the wire electrical discharge machine and the small-hole electrical discharge machine according to claim 1, which operate in a state where the processing table device is positioned at. (4) The wire according to claim 1, further comprising a reference surface cleaning device for cleaning the horizontal reference means, the height reference means, and the reference surfaces on the side and lower surfaces of the pallet provided on the processing table. A processing table device that can be applied to electric discharge machines and small hole electric discharge machines. (5) The controller according to claim 1, further comprising a controller that moves the pallet into and out of the processing table in response to an open state of the slide cover of the processing tank and operates in response to a closed state of the slide cover. A processing table device that can be applied to wire electrical discharge machines and small hole electrical discharge machines. (6) A large number of processing machines, a rack with multiple shelves for storing pallets, a processing station where workpieces are treated to prevent rust, and a pallet transport device that moves back and forth between pallet loading/unloading stations. A claim applied to a flexible manufacturing system in which a pallet on which workpieces are set is delivered to each of the processing machines while maintaining a positioning state, and the workpieces on the pallet are automatically electrical discharge machined by each of the processing machines. A processing table device applicable to the wire electrical discharge machine and the small-hole electrical discharge machine described in 1.