JPH032764B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transport method and apparatus for a processing line system.

There are various types of processing line systems that attach a workpiece to a jig or fixture, sequentially transport the jig or fixture onto a processing line, and process the workpiece at multiple processing stations provided on the processing line. It is becoming widely used in industry. As a conveyance device in this line system, one that utilizes (1) a feed rod mechanism, (2) a lift and carry mechanism, (3) a free cycle conveyor system, etc. is generally used. Most of the systems that utilize these mechanisms are provided with a feeding mechanism along the entire length of the line, so the size of the device increases due to this mechanism.

Transport means using push-up mechanisms are also found in other fields, but in order to use this means as a transport device for a processing line system, the weight of the jig or fixture to which the workpiece is attached is large, and therefore the inertia is large. It was said to be large and difficult to move, and even more difficult to accurately position.

An object of the present invention is to provide a processing line system that has a simple structure, does not require a special transport mechanism along the processing station, and allows easy recovery of jigs or fixtures excluding processed workpieces. The purpose of the present invention is to provide a transportation method and device.

The transport method according to the present invention is a method of transporting a jig or a fixture (hereinafter simply referred to as a jig) in which a workpiece is attached, in order to sequentially process the workpiece at a plurality of processing stations of a processing line system. In,
A leading station that receives a jig with a workpiece attached thereto, and a trailing station that processes a jig for attaching a processed workpiece are provided at the head and tail of a plurality of consecutive processing stations, respectively. The processing station and the tail station are arranged in a straight line, an extrusion device is provided at the tip of the leading station, a movable damper is provided at the end of the tail station, and the jig is placed at each station except the tail station. Then, these jigs are brought into contact with each other and extruded by the extrusion device toward the tailing station, while the movable damper holds down the tips thereof. When each jig reaches the next station, extrusion is stopped, and the extrusion is continued. This releases the restraint caused by the movable damper, enables positioning of each jig at the processing station, carries a new jig to the first station, removes the jig from the Mio station, and allows processing at each processing station. After the completion of the transfer, the jigs for each station except for the tailing station are pushed out as a unit toward the tailing station, and the same operation as described above is repeated.

The conveying device according to the present invention is a device that implements the above-described conveying method of the present invention, and is a processing line system in which a jig with a workpiece attached thereto is carried in and sequentially conveyed to a plurality of processing stations to process the workpiece. In a conveyance device, a leading station is provided at the beginning and end of a plurality of consecutive processing stations, respectively, to receive a jig with a workpiece attached thereto, and an unfinished station that processes a jig with a processed workpiece attached. It has a tail station, an extrusion device, and a movable damper, the leading and trailing stations are movable up and down, and are aligned with a plurality of processing stations at the upper stage position, and the extrusion device and the movable damper each have a The jigs on each station are provided at the beginning of the leading station in the upper stage position and at the end of the trailing station, and the jigs on each station are in contact with each other so that they can be moved as one by an extrusion device, and the movable damper prevents them from being ejected. A transport means for recovering the jig is provided between the top and lower positions of the Mio station, and the Mio station, on which the jig with the processed workpiece attached is placed, is lowered to the lower stage and the processed workpiece is The jig from which the workpiece has been removed is transferred to the leading station by the recovery transfer means, and after a new workpiece is attached, both stations can be raised to the upper stage. This is a transport device that

Hereinafter, the method and apparatus of the present invention will be explained in detail based on the drawings of the apparatus of the embodiment. FIG. 1 is a front view of an embodiment of the device of the present invention, and FIG. 2 is an A in FIG. 1.
-A cross-sectional view.

The central part of FIG. 1, ie, the part shown in cross section in FIG. 2, is the processing station part 3. A plurality of processing stations 3 are arranged in a straight line to form a processing line system. The processing station 3 is provided at the upper stage of the frame 11. A leading station 5 is provided at the leading end of the plurality of consecutive processing stations 3, and a trailing station 6 is provided at the trailing end. The leading station 5 and the trailing station 6 are movable up and down by a lifter 9, and are aligned with the plurality of processing stations 3 at the upper stage position. An extrusion device 1 is provided at the tip of the leading station 5 at the upper stage position, and a movable damper 2 is provided at the end of the trailing station 6.

Jig receiving rollers 12 are installed on the leading station 5, the processing station 3, and the trailing station 6, so that jigs 8 can be placed and transported.
As will be clear from the following explanation, before the jig 8 is transferred between the stations, the Mio station 6 is
The jig 8 is not placed on. First station 5
The jigs 8 placed on each of the plurality of processing stations 3 are in contact with each other so that they can be moved as one toward the tailing station 6 by the extrusion device 1. Also, when moving this jig 8,
The arms of the movable damper 6 are extended and moved while pressing the tip of the jig 8 to prevent the jig 8 from being released. In this way, the jig 8 is moved one station at a time. The operating stroke of the extrusion device 1 and the movable damper is therefore approximately equal to the length of one station.

Each processing station 3 is provided with a processing unit 13 and a positioning unit 10.
The jig 8 is positioned between the machining unit 13
The workpiece is machined.

A jig recovery conveyor 7 is provided between the leading station 5 and the subordinate station 6, and the surfaces of both stations 5, 6 and the conveyor 7 are in a straight line and on the same plane. First station 5
A pusher 4 is provided to move the upper jig 8 onto the conveyor 7.

The apparatus of the illustrated embodiment is constructed as described above. Next, a jig transport method using this device will be explained.

A jig 8 to which a workpiece to be machined is attached is placed on top of the leading station 5 at the upper stage. In each of the plurality of processing stations 3, a jig 8 to which a workpiece that has been processed at that station is attached is placed with the jig 8 dislocated from the processing station 3. A case will be described in which the jig transport method using this apparatus is started from the above state. Other conditions, such as when the entire machining operation begins or ends, can be easily imagined from the description below.

While extending the arm of the movable damper 2 and holding down the tips of the 8 groups of jigs, the extruder 1 pushes the 8 groups of jigs toward the tail station 6. At this time, the movable damper 2 is pushed back while holding down the tips of the 8 groups of jigs, and the 8 groups of jigs do not move freely due to inertia, but move in close contact with each other. When the group of 8 jigs moves a certain pitch, the extrusion device 1 stops extrusion and moves its arm backward. The movable damper 2 further retreats slightly, releasing the restraint that holds the 8 groups of jigs in close contact with each other.

Each jig 8 is at each processing station 3, and each jig 8 is
Since there is a gap for movement in the direction of movement, the positioning unit 10 and the positioning hole 10A are fitted, and the positioning unit 10 and the positioning hole 10A are fitted, and the positioning unit 10 and the positioning hole 10A are positioned and fixed, and the workpiece is ready for processing.

On the other hand, the jig 8 to which the processed corrugated workpiece is attached is carried into the tail station 6, and the jig 8 is not placed at the leading station 5. The leading station 5 and the trailing station 6 are lowered to the lower position, and the processed workpiece is removed from the jig 8 on the trailing station 6. This jig 8 is pushed onto the recovery conveyor 6 by the recovery pusher 4, and is transferred by the recovery conveyor 6 onto the leading station 5 at the lower stage position. The transfer from the conveyor 6 to the top station 5 uses appropriate means such as utilizing gravity or assisting with human power. A new workpiece is attached to the jig 8 on the leading station 5, and the leading station 5 and the empty trailing station 6 are raised to the upper stage position.

When the machining at each machining station 3 is completed and the positioning connections are released, the state will be the same as the first described state, and the same operations as described above will be repeated.

The method and apparatus of the present invention are configured as described above. As described above, in the apparatus of the present invention, there is no driving mechanism for moving the jig below the jig of the processing station, and the structure is simple. In addition, the jigs are conveyed only by the extrusion force of the extrusion device, and the conveyance mechanism is simple.Furthermore, since the jigs are conveyed while holding down the tips of the group of jigs being conveyed, overhanging is prevented. Furthermore, in order to minimize the start of movement of the jig and the impact, it is effective to attach a buffer to the tip of the extrusion part and the end of the movable damper. Each jig is transferred in close contact with each other, but after stopping at each processing station position, the movable damper moves back slightly and releases the restraint that holds each jig in close contact with each other. The jig can be accurately positioned by actuation. Furthermore, the leading and end stations can be moved up and down, and there is no drive mechanism for moving jigs under the machining station, so jigs can be collected smoothly from the bottom of the machining station. You can make a return for the purpose.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the device of the present invention;
The figure is a sectional view taken along the line A--A in FIG. 1. 1... Extrusion device, 2... Movable damper, 3... Processing station, 4... Collection pusher, 5...
First station, 6...Mio station, 7
...Recovery conveyor, 8...Jig, 9...Lifter, 10...Positioning unit, 10A...Positioning hole portion, 11...Processing station frame,
12...Jig receiving roller, 13...Machining unit.

Claims (1)

[Claims] 1. A jig or fixture (hereinafter simply referred to as a jig) to which a workpiece is attached in order to sequentially process the workpiece at a plurality of processing stations in a processing line system.
In a method of transporting a machine, a leading station receives a jig with a workpiece attached to it and a trailing station processes a jig with a processed workpiece attached at the head and tail of a plurality of consecutive processing stations, respectively. A leading station, a plurality of processing stations, and a tailing station are arranged in a straight line, an extrusion device is provided at the tip of the leading station, a movable damper is provided at the end of the trailing station, and each station except the trailing station is installed. The jigs are placed in each of the jigs, and these jigs are brought into contact with each other, and the extrusion device pushes out the jigs while holding down their tips with the movable damper, so that each jig reaches the next station. Then, extrusion is stopped, the restraint by the movable damper is released, each jig can be positioned at the processing station, a new jig is carried into the first station, and the jig at the tail station is removed. Then, after the processing at each processing station is completed, the jigs of each station except the Mio station are pushed out as a unit toward the Mio station in the same manner as described above, and the same operation as described above is repeated. . 2 In a conveying device in a processing line system in which a jig or fixture (hereinafter simply referred to as a jig) to which a workpiece is attached is carried in and sequentially conveyed to a plurality of processing stations to process the workpiece, A leading station that receives a jig with a workpiece attached thereto, a trailing station that processes a jig with a processed workpiece attached, and an extrusion device and a movable The leading and trailing stations are movable up and down, and are in line with a plurality of processing stations at the upper stage position, and the extrusion device and the movable damper are arranged at the tip and the end of the leading station at the upper stage position, respectively. The jigs on each station are provided at the ends of the Mibi station, and the jigs on each station are in contact with each other and can be moved as one by an extrusion device.
In addition, a movable damper prevents ejection, and a transfer means for recovering the jig is provided between the top and lower positions of the tail station, and the jig on which the processed workpiece is mounted is placed. The station is lowered to the lower stage, and the jig from which the processed workpiece has been removed is transferred to the leading station by the recovery transfer means.
A conveying device characterized in that both stations can be raised to an upper stage after a new workpiece is attached.