JPH06102291B2 - Automatic transfer device for workpieces - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting a workpiece when the workpiece is machined in two different postures.

Conventional Technology FIGS. 4 and 5 show a conventional example of a transfer device.

FIG. 4 shows the configuration of an apparatus for sequentially carrying in a work piece into a work piece holding jig, in which the work piece is carried in → first machining → posture change → second machining → unloading. FIG. 5 shows a configuration of a work-piece transporting device using a rotary table provided with two processing devices. In this case, the work of carrying in the work, the first work, the posture change, the second work, and the carry-out work are all independent work at the same time.

Problems to be Solved by the Invention However, the above-described conventional configuration has the following problems. In the configuration shown in FIG. 4, the required work is a work that is connected to the series in the order of loading the workpiece → first machining → posture change → second machining → unloading, so continuous high-speed production is not possible. Further, in the configuration shown in FIG. 5, all the work is performed at the same time, so continuous high-speed production is possible. However, despite the same processing, two processing devices are required, so that the device is large. However, it has a problem that it becomes expensive.

The present invention solves the above-mentioned problems of the prior art, in which a workpiece is processed into a first machining posture and a second machining posture with respect to a single machining apparatus that performs the same machining on two different postures of the workpiece. It is an object of the present invention to provide a transfer device which is applied alternately and continuously.

Means for Solving the Problems To achieve this object, the automatic carrier of the present invention comprises:
A table in which five jigs for holding a workpiece are arranged at equal divisional positions on the circumference, a drive device for intermittently rotating the table with two jigs on the table as one indexing rotation. A carrying-in device for carrying in a workpiece to a jig for a workpiece, and a posture conversion for carrying out the carrying-out posture of the workpiece and re-carrying it onto a jig corresponding to the carrying-in device after rotation for indexing. A transfer device, a carry-out device for carrying out the work piece, and a working device for working the work piece every time in synchronization with the indexing rotation of the table, the carrying-in device, the working device, and the carrying-out device. Arranged in order for each indexing position, the posture conversion transfer device is disposed between the carry-in device and the carry-out device on the side without the processing device, and the operation of the carry-in device and the posture conversion transfer device are performed. Is carried out to change the posture of the workpiece. The indexing rotation is performed once at the same indexing rotation, and the loading device does not operate during the indexing rotation. When the loading device operates and the posture conversion transfer device is processed on the jig corresponding to the loading device. The operation of reloading an item is performed.

Operation With this configuration, the workpiece can be conveyed to the processing apparatus in two processing postures alternately and continuously.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a device configuration in an embodiment of the present invention. Second
The figure is an external view of an inspection apparatus of a specific example. FIG. 3 is an operation chart diagram thereof.

In FIG. 1, 1 is an index table, 2 is a workpiece holding jig, and an odd number (5 jigs in this embodiment) is equally divided and attached to the index table 1. Three
Is a table driving device, which drives the table 1 intermittently with two pitches of the jig 2 (2/5 rotations in this embodiment) as one index. 4 is a carry-in device, 5 is a processing device, 6 is a carry-out device, 7
Is a posture change transfer device,
The posture is changed and transferred to the jig 2 adjacent to the pitch.

FIG. 2 shows an X-ray inspection apparatus for a quartz wafer.
Reference numeral 1 is an index table, and 2 is a positioning and holding jig for a quartz wafer which is a workpiece, and holds the quartz wafer which is a workpiece by vacuum suction. Reference numeral 3 denotes a table driving device, which is a table 1 having two pitches of the jig 2 (in this embodiment, 2/5
Rotation) is indexed and intermittently driven. Reference numeral 4 denotes a carry-in device, which carries the workpieces, which are supplied one by one from a parts feeder or the like, into the jig 2 by chucking and reversing by 90 °. Reference numeral 5 is an X-ray irradiation device of the processing device. Reference numeral 6 denotes a carry-out device, which chucks and inverts the workpiece by 180 ° and carries it out of the device. Reference numeral 7 denotes a posture changing transfer device, which inverts the quartz wafer of the workpiece by chucking and reversing and transfers it to the jig 2 adjacent by one pitch. The carry-in device 4, the carry-out device 6, and the posture conversion transfer device 7 are synchronized with each other by gear coupling, and perform one operation for two-time indexing of the table 1.

The carrying method of the carrying device configured as described above will be described below with reference to the chart of FIG.

In FIG. 3, (1) to (11) show states on the table 1 for each indexing rotation. IV indicate the positions of the five jigs 2 on the table 1. A to F represent the workpieces, and ~ represent the first processed workpieces, Indicates the second processed object. That is, Are used to distinguish the state of the workpiece A before the machining, the state of the first machining, and the state of the second machining. Next, along with (1) to (11), description will be sequentially made from a state in which there is no workpiece on the table. (1) is jig 2
Item I indicates a state in which the workpiece A is loaded. At this time, if there is a preceding work on the table, the second processing is performed in the jig 2 of III, and the first processed workpiece is taken out from the V of the jig 2 for posture conversion transfer. This is shown as a fictitious motion with a broken line. In (2), the workpiece is subjected to the first machining after one rotation of the jig pitch for indexing. At this time, if there is a preceding work piece, it is carried out from III of the jig 2, and the work piece whose posture is changed is transferred to IV of the jig 2. Hereinafter, the names of the workpiece and the jig 2 will be omitted, and will be simply denoted by symbols A to F,
Notated as I to V. At (3), the posture change transfer is taken out,
B is newly introduced to II. At this time, the second machining of the preceding workpiece is performed at IV. At (4), the posture conversion transfer is carried in to V, the first processing is performed at II, and the preceding work is taken out at IV. At (5) Is second processed, and posture conversion transfer is taken out from II,
A new C is delivered to III. At (6) Is carried out, the posture conversion transfer is carried in to I, and the first processing is carried out. The table has been rotated a total of 2 times (720 °) by the indexing rotation of 5 times so far, and the jig position is the same as in (1) in (6). Similarly, at the workpiece carry-in position, the carry-in of a new workpiece and the posture conversion transfer carry-in of the first processed workpiece are alternately repeated. At the machining position, the first machining and the second machining are alternately repeated, and at the carry-out position, the posture conversion transfer and takeout of the first processed workpiece and the second finished machining object are carried out. The carrying out is repeated alternately, and after 10 times of indexing rotation (11), the jig arrangement on the table and the state of the workpiece on the jig return to exactly the same (1). (7) to (11) show the process.

EFFECTS OF THE INVENTION As described above, according to the present invention, for every two-pitch indexing rotation of an odd-numbered jig and once for indexing, one loading, posture conversion transfer,
By combining the unloading operations, it is possible to realize a transfer device that continuously applies two workpieces alternately to one processing device that performs the same processing each time.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of a transfer device according to an embodiment of the present invention, FIG. 2 is an external perspective view of an inspection device according to an embodiment of the present invention, and FIG. 3 is a transfer method showing a transfer method according to an embodiment of the present invention. Charts, FIG. 4 and FIG. 5 are block diagrams showing a conventional apparatus configuration. 1 ... Table, 2 ... Workpiece holding jig, 3 ... Table driving device, 4 ... Loading device, 5 ... Processing device, 6 ...
… Carry-out device, 7… Posture change transfer device.

Claims (1)

[Claims] 1. A table in which five jigs for holding a workpiece are arranged at equally divided positions on the circumference, and the table is intermittently indexed and rotated with the jig 2 pitches on the table as one indexing rotation. A drive device, a carry-in device for carrying in a work piece to the jig for the work piece, and a jig corresponding to the carry-in device after the work piece carry-out posture is changed to perform indexing rotation. The carrying-in device and the processing device, which are provided with a posture conversion transfer device for re-carrying in, a carrying-out device for carrying out the workpiece, and a processing device for processing the workpiece every time in synchronization with the indexing rotation of the table. , Arranged at each index position in the order of the carry-out device,
The posture changing transfer device is arranged between the carry-in device and the carry-out device on the side without the processing device, and the operation of the carry-in device and the posture changing transfer device change the posture of the workpiece. In order to carry out the operation of the carrying-out device and the posture changing transfer device to the carrying-in device during the indexing rotation in which the carrying-in device does not operate, the carrying-out operation is performed once every two indexing rotations. An automatic transfer device for the workpiece that performs the operation of reloading the workpiece on the corresponding jig.