JP2000176759A - Method for moving work positioing jig and its system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method capable of being dispensed with much less spaces for setting rails necessary for moving jigs as compared with the space required by the number of the jigs to be housed in, in the method for moving the jig from its housing position to a work processing position, and for returning the work from its processing position back to any housing position after its processing is over. SOLUTION: A first rail device 50 provided with two mutually parallel rails 54 and a second rail device 52 provided with two mutually parallel rails 60, are disposed between a storage device 114 housing plural jigs and a work processing position 40 so as to be in series in a same plane, and furthermore, so as to let the first rail device be positioned at the storage device side, and let the second rail device be positioned at the processing position side, and laterally moving those first and second rail devices toward the direction of those rails in order to change a moving passage for the jig between the storage device and the processing position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig used for positioning a work when it is necessary to use any of a plurality of reusable jigs at a processing position of the work. The present invention relates to a technique for moving a jig from any one of a plurality of accommodation positions in which it is accommodated to a processing position and, when its use is completed, moving the jig from the processing position to any of the accommodation positions.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional example of the above technique. In this conventional example, the jig is a carrier 200
The carrier 200 is controlled by the rail device 202 on the carrier path. The rail device 202 includes a plurality of rails on which the carrier 200 travels, and the plurality of rails are a plurality of work positions 206 and a plurality of storage positions (a square in FIG. (Indicated by a frame). The rail device 202 further switches the connection between the plurality of rails by using a plurality of branch devices, thereby changing the traveling route of the carrier 200.

[0003]

As described above, in this conventional example, the carrier is always moved along the rail, and as a result, the traveling path of the carrier forms a loop. The number of the loops is equal to the number of types of jigs to be accommodated. Therefore, this conventional example has a problem that as the number of types of jigs to be accommodated increases, the number of loops increases and the installation space for the rails also increases. In this conventional example, a plurality of accommodation positions are provided in each loop. A plurality of jigs of the same type are accommodated for each loop.

When a plurality of works of the same type are successively machined at machining positions, it is not necessary to change the type of jig to be used for each work. Therefore, if the jig is removed from the work after the previous work of the work has been completed, the jig should be kept on standby near the processing position, and wait until the current work reaches the processing position. It is conceivable to attach the waiting jig to the work. However, when a used jig cannot be made to stand by near the processing position, it is conceivable to use a certain loop for the stand-by. That is, after removing the jig from the work after the previous processing of the work is completed, the jig is placed on the carrier in a sense that the jig is temporarily retracted from the processing position, and a loop is formed. It is conceivable that the jig reaches the processing position along the workpiece at the time when the workpiece reaches the processing position. However, with this method, the jig cannot be used while making a round of a certain loop, and even though the current work has reached the machining position, On the other hand, processing cannot be started, and the production efficiency decreases. Therefore, a plurality of jigs of the same type are accommodated in different positions in the same loop, and if the jig to be used in the current work is the same as the previous work, after removing the jig from the previous work, A jig of the same type as the jig is moved from the accommodation position to the processing position, and the same type of jig can be used for the current work without causing a time lag.

Against this background, in the above-described conventional example, a plurality of jigs of the same type are accommodated in each loop. If you want to continue processing in
Although it is not necessary to change the type of jig to be used for each work, a plurality of jigs of the same type must be prepared. Therefore, this conventional example also has a problem that the total number of jigs increases.

In view of the circumstances described above, the present invention has been made to reduce the installation space for a rail-type support on which a jig can be moved, and the following aspects can be obtained by the present invention. . Each mode is described in the same manner as in the claims, divided into sections, each section is numbered, and described in the form of citing the numbers of other sections as necessary. This is to facilitate understanding of some of the technical features and combinations thereof described in this specification, and the technical features and combinations thereof described in this specification are limited to the following embodiments. Should not be interpreted as

(1) If it is necessary to use any of a plurality of reusable jigs used for positioning a work at a processing position of the work, the jig is accommodated therein. Moving the jig from one of the plurality of storage positions to the processing position to the processing position, and, when the use thereof is completed, moving the jig from the processing position to any of the storage positions. A rail device having at least one rail-type support between which a jig is moved, and when the number of the rail-type supports is plural, the plurality of rail-type supports are parallel to each other. When it is necessary to move any jig from any storage position to the processing position, move the jig from any storage position to the processing position, Rail mounting Performing a first longitudinal feeding step of moving the rail device along the rail type support, and a selective traversing step of traversing the rail device in the direction in which the rail type support extends, if necessary. On the other hand, when it is necessary to move any jig from the processing position to any of the storage positions, the jig is moved from the processing position to any of the storage positions, and A method for moving a work positioning jig, wherein a second vertical feeding step of moving along a support and the selective horizontal feeding step are performed [Claim 1]. In this method, by moving the laterally feedable rail device between the plurality of storage positions and the processing position, the movement path of the jig between the plurality of storage positions and the processing position is changed to a right angle. obtain.
Therefore, according to this method, the installation space for the rail-type support can be reduced as compared with the conventional example in which the movement path is changed by selecting the loop. In this method, one "rail-type support" used for moving one jig is constituted mainly of one rail or a plurality of (for example, two) rails parallel to each other. Can be mainly constituted. Further, it is not essential that the “rail type support” is configured to have a so-called rail, but it is sufficient to configure the “rail type support” to have a guide having the same function as the rail. These interpretations are valid in other sections. Further, in this method, the “working position” can be set as a position where any one of the at least one rail-type support in the rail device is located, or as another position facing the position. This interpretation is valid in other sections. (2) A method of moving the work positioning jig according to (1), wherein the plurality of rail devices are arranged in series on the same plane between the plurality of accommodation positions and the processing position. Item 2]. According to this method, the rail device is connected to one
In this case, the moving path of the jig can be freely changed as compared with the case where the jig is arranged between the plurality of accommodation positions and the processing positions. In this method, each of the “plurality of rail devices”
A plurality of rail-type supports may be provided in parallel with each other. (3) Of the plurality of rail devices, the one arranged on the processing position side has two of the rail-type supports, and moves the work positioning jig according to (2). [Claim 3]. In this method, a laterally feedable rail device arranged on the side of the processing position has two rail-type supports, and can simultaneously support two jigs. Therefore, according to this method, one of the two rail-type supports in the rail device arranged on the side of the processing position is made to correspond to the processing position, so that either jig is used at that processing position. In this case, the jig corresponding to the next work can be carried into the two rail-type supports that are not corresponding to the processing position and made to stand by. Therefore, according to this method, the use of the jig at this time and the standby of the next jig can be performed in parallel, and a long machining time of the work can be secured in one machining cycle time. (4) The jig has a shape having a longer dimension in the width direction in the length direction thereof, and the lateral feed direction of the rail device is set to be parallel to the width direction of the jig.
A method of moving the work positioning jig according to any one of (1) to (3). According to this method, the distance of the traverse of the rail device is reduced, and as a result, the time required for the traverse is shortened, the working efficiency is improved, and the installation space for the rail-type support is reduced. (5) When the number of the rail-type supports in the rail device is plural, the plurality of rail-type supports are laterally fed together (1) to (4), wherein the workpiece positioning according to any one of (1) to (4). How to move the jig. (6) When the number of rail-type supports in the rail device is plural, the plurality of rail-type supports are individually laterally fed (1) to (4). How to move the jig. According to this method,
The plurality of rail-type supports in the rail device can be traversed independently of each other, and it is easy to select the moving path of the jig as a lean and efficient one.
Further, the weight of the unit to be traversed is reduced, and the responsiveness of the traverse can be easily improved. (7) If it is necessary to use any of a plurality of reusable jigs used for positioning the work at the processing position of the work, the jigs in which the jigs are accommodated are used. Moving the jig from one of the storage positions to the processing position and, when the use thereof is completed, moving the jig from the processing position to any of the storage positions. A first rail device having at least one rail-type support between which a jig is moved, and when the number of the rail-type supports is plural, the plurality of rail-type supports are parallel to each other. A second rail device having two rail-type supports arranged in parallel with each other, the second rail device being arranged in series on the same plane, and the first rail device being disposed at a plurality of accommodation positions on the second rail device side; Equipment processing If it is necessary to move the jig from one of the storage positions to the processing position by disposing the jig from the first rail device to the second rail, A first longitudinal feed step in which the devices are moved along their rail-type supports and, if necessary, at least one of the first rail device and the second rail device with respect to the direction in which their rail-type supports extend. And performing a lateral traversing step. If it is necessary to move any jig from the processing position to any of the accommodation positions, the jig is moved from the second rail device to the second rail device. A method of moving a work positioning jig, comprising: performing a second vertical feeding step of moving a single rail device along the rail-type supports and the selective horizontal feeding step. In this method, by moving the laterally feedable rail device between the plurality of storage positions and the processing position, the movement path of the jig between the plurality of storage positions and the processing position is changed to a right angle. obtain. Therefore, according to this method, the installation space for the rail-type support can be reduced as compared with the conventional example in which the movement path is changed by selecting the loop. Furthermore, in this method, the laterally feedable rail device arranged on the side of the processing position has two rail-type supports and can simultaneously support two jigs. Therefore, according to this method, one of the two rail-type supports in the rail device arranged on the side of the processing position is made to correspond to the processing position, so that either jig is used at that processing position. In this case, the jig corresponding to the next work can be carried into the two rail-type supports that are not corresponding to the processing position and made to stand by. Therefore, according to this method, the use of the jig at this time and the standby of the next jig can be performed in parallel, and a long machining time of the work can be secured in one machining cycle time. In this method, the “processing position” can be set as a position where one of the two rail-type supports in the second rail device is located, or as another position facing the position. This interpretation is valid in other sections. (8) Further, a storage device having a plurality of rail-type supports arranged in parallel with each other and capable of accommodating a plurality of jigs is disposed on the opposite side of the first rail device from the second rail device. When it is necessary to move any jig from the storage device to the processing position, the jig is transferred from the storage device to the second rail device via the first rail device along the rail-type supports. The third vertical feed step of moving the jig from the processing position to the storage device is performed when the third vertical feed step and the selective horizontal feed step are performed. The work according to claim 7, wherein a fourth vertical feed step of moving the storage apparatus from the second rail apparatus via the first rail apparatus to the storage apparatus along the rail-type supports and the selective horizontal feed step are performed. For positioning Method of moving the ingredients. The method described in the preceding paragraph can be implemented in a mode in which the number of rail-type supports in the first rail device is two or more, and the two or more rail-type supports are used as a plurality of storages. However, when the embodiment is implemented in this manner, as the number of jigs to be accommodated increases, the number of rail-type supports to be fed sideways increases, and the weight of the first rail device increases. On the other hand, according to the method described in this section, the jig can be accommodated in the storage device, and the number of jigs to accommodate the number of rail-type supports in the first rail device is as follows. It can be determined independently. Therefore, according to this method, the number of rail-type supports is smaller than the total number of jigs to be accommodated, and the weight of the first rail device is reduced. Further, according to the method described in this section, the jig can be accommodated not only in the storage device but also in the first rail device or the second rail device. Therefore, according to this method,
The number of storages can be reduced for the total number of jigs to be accommodated. (8) The method according to (7), wherein the number of rail-type supports in the first rail device is two. According to this method, the frequency or distance of the lateral feed of the first rail device is reduced as compared with the case where the number of the rail-type supports is one, and the number of the rail-type supports is three.
The weight of the first rail device is reduced as compared with the case where the number is more than one. (9) The jig has a shape having a longer dimension in the width direction in the length direction thereof, and the lateral feed direction of the first rail device and the lateral feed direction of the second rail device are both , Set parallel to the width direction of the jig (6) or
(8) A method of moving the work positioning jig according to any of the above (8). According to this method, the distance of the traverse of the first rail device and the second rail device is reduced. As a result, the time required for the traverse is shortened, the work efficiency is improved, and the installation space of the rail-type support member is improved. Is saved. (10) The method according to any one of (6) to (9), wherein when the number of the rail-type supports in the first rail device is plural, the plurality of rail-type supports are laterally fed together. A method of moving the work positioning jig. (11) The method according to any one of (6) to (9), wherein when the number of the rail-type supports in the first rail device is plural, the plurality of rail-type supports are individually laterally fed. A method of moving the work positioning jig. According to this method, the plurality of rail-type supports in the first rail device can be traversed independently of each other, and it is easy to select a moving path of the jig as a lean and efficient one. Further, the weight of the unit to be traversed is reduced, and the responsiveness of the traverse can be easily improved. (12) The method for moving the work positioning jig according to any one of (6) to (11), wherein the two rail-type supports in the second rail device are laterally fed together. According to this method, the traverse time required for the two rail-type supports as a whole is reduced as compared with the case where the two rail-type supports are individually traversed, and as a result, the work efficiency is improved. . (13) The method according to any one of (6) to (11), wherein the two rail-type supports in the second rail device are individually laterally fed. According to this method, the plurality of rail-type supports in the second rail device can be traversed independently of each other, and it is easy to select a moving path of the jig as a lean and efficient one. Further, the weight of the unit to be traversed is reduced, and the responsiveness of the traverse can be easily improved. (14) The lateral feed of the second rail device is such that a first position in which one of the two rail-type supports corresponds to the processing position and a second position in which the other rail-type support corresponds to the processing position. (6) The method for moving a work positioning jig according to any one of (6) to (13), wherein the jig is selectively moved to two positions. According to this method, the second
Compared to the case where the traverse of the rail device is performed in such a way that any of its two rail-type supports is also moved to a position not corresponding to the machining position, the traverse distance of the second rail device is reduced. Be shortened. (15) The first rail device and the second rail device are arranged on the same horizontal plane, and the jig moves the work at a processing position on a pallet moved along a horizontal plane different from the same horizontal plane. Used for positioning, the second rail device is disposed at a position shifted upward or downward from the processing position, and the jig is moved between the second rail device and the processing position by an elevating device. A method of moving the work positioning jig according to any one of (6) to (14), which is moved up and down. According to this method, the work space can be effectively used not only in the horizontal direction but also in the vertical direction to move the jig and transport the work. Note that this method is one of the modes in which the “processing position” is set not as the position where one of the two rail-type supports in the second rail device is located, but as the position facing the position. (16) If a plurality of works are sequentially transferred to the processing position by the pallet and the type of jig to be used is the same between the previous work and the present work, When the use of the jig for the previous work is completed, the jig is retracted from the previous work by the elevating device, and then the current work is moved to the pallet without moving the jig to the accommodation position. The method according to (15), wherein the jig is moved to the processing position, and the jig is moved closer to the current work by the lifting device. According to this method, unnecessary movement of the jig from the processing position to the accommodation position is prevented, and work efficiency is improved. Further, according to this method, unlike the conventional example, when a plurality of workpieces of the same type are continuously processed at the processing position, in order to prevent a time lag caused by the use of the jig from occurring, It is not essential to prepare a plurality of jigs of the same type. Therefore, according to this method, it is possible to make the number of types of jigs the same as the number of types of workpieces, thereby reducing the number of types of jigs and the total number of jigs. (17) In the case where a plurality of works are sequentially conveyed to the processing position by the pallet, and when the type of jig to be used alternates between the plurality of works,
When the use of the previous jig for the previous work is completed, the jig is retracted from the previous work by the elevating device, and then the jig is moved to the accommodation position without moving the jig to the accommodation position. The two jigs are moved sideways to replace the previous jig with the current jig. After that, the current jig is transported to the processing position by the pallet, and then the current jig is raised and lowered. The method for moving the work positioning jig according to the mode (15) or (16), wherein the apparatus is caused to approach the current work by the device. According to this method,
Unnecessarily moving the jig from the processing position to the accommodation position is prevented, and work efficiency is improved. (18) Any one of (15) to (17), wherein both the transverse feed direction of the first rail device and the transverse feed direction of the second rail device are set so as to intersect with the pallet transport direction. The method for moving the work positioning jig according to the above. (19) The traverse direction of the first rail device and the traverse direction of the second rail device are both set to be parallel to the pallet conveyance direction, according to any one of (15) to (17). To move the work positioning jig. (20) If it is necessary to use any of a plurality of reusable jigs used for positioning a work at a processing position of the work, the jig is stored in a plurality of jigs in which the jigs are accommodated. A system for moving the jig from the processing position to any of the storage positions when the use of the jig is completed.
A rail device that is disposed between the plurality of accommodation positions and the processing position and has at least one rail-type support member to which a jig is moved, and that the rail device is moved in a direction in which the rail-type support member extends. A traverse device that traverses,
A system for moving a work positioning jig including a jig moving device for moving the jig between the plurality of accommodation positions and the processing position along the rail-type support [Claim 4]. According to this system, the method according to the above mode (1) is suitably performed. In this system, the “jig moving device” can be a self-propelled carrier, that is, a train or a towed carrier. Such an interpretation is valid for other terms. It should be noted that the system described in this section can be configured to execute the method described in any of the above (2) to (5). (21) A system for moving the workpiece positioning jig according to (20), wherein the plurality of rail devices are arranged in series with each other on the same plane between the plurality of accommodation positions and the processing position. Item 5]. According to this system,
The method described in (2) is suitably performed. In this system, each of the "plurality of rail devices" may have a plurality of rail-type supports in parallel with each other. (22) Among the plurality of rail devices, the one arranged on the processing position side has two rail-type supports, and moves the work positioning jig according to the item (21) according to the item (21). A system for causing [claim 6]. (23) If it is necessary to use any of a plurality of reusable jigs used for positioning a work at the processing position of the work, the jig is stored in the plurality of A system for moving the jig from the processing position to any of the storage positions when the use of the jig is completed.
A first rail device and a second rail device arranged in series on the same plane between the plurality of accommodation positions and a processing position, wherein the first rail device includes a rail on which a jig is moved. Having at least one mold support, and
When the number of the rail-type supports is plural, the plurality of rail-type supports are arranged in parallel with each other, while the second rail device has two rail-type supports arranged in parallel with each other, The first rail device is disposed on the side of the plurality of storage positions, the second rail device is disposed on the side of the processing position, and the first rail device is laterally moved in the direction in which the rail-type support extends. A first traverse device, a second traverse device for laterally moving the second rail device in a direction in which the rail-type support extends, and a jig for moving the jig between the first rail device and the second rail device. And a jig moving device for moving the work positioning jigs along the rail-type supports. According to this system, the method according to the above mode (6) is suitably performed. It should be noted that the system described in this section can be configured to carry out the method described in any of the above (7) to (19). (24) Further, a storage device having a plurality of rail-type supports arranged in parallel with each other and capable of accommodating a plurality of jigs, wherein the storage device is on the opposite side of the first rail device from the second rail device. Wherein the jig moving device moves the jig between the first rail device, the second rail device, and the storage device along the rail-type supports (23). The system for moving the work positioning jig according to the item (2). According to this system, the method according to the above mode (7) is suitably performed. (25) If it is necessary to use any of a plurality of reusable jigs used for positioning a work on a pallet moved along a horizontal plane at a processing position of the work, A system for moving a jig from any of a plurality of accommodation positions in which it is accommodated to a processing position and, when its use is completed, moving the jig from the processing position to any of the accommodation positions, A first rail device and a second rail device arranged in series on the same horizontal plane different from the moving horizontal plane of the pallet between the plurality of storage positions and the processing position, wherein the first rail device is When at least one rail-type support for moving the jig is provided and the number of the rail-type supports is plural, the plurality of rail-type supports are parallel to each other. , While the second rail device is
It has two rail-type supports arranged in parallel with each other, the first rail device is shifted to a plurality of storage positions, and the second rail device is shifted to an upper or lower position from the processing position. The ones that are placed in each position,
A first traverse device for traversing the first rail device in a direction in which the rail-type support extends, and
A second traverse device for laterally moving the rail device in the direction in which the rail-type support extends, and a storage device having a plurality of rail-type supports arranged in parallel with each other and capable of accommodating a plurality of jigs. And wherein the first rail device is disposed on a side opposite to the second rail device;
A jig moving device that moves a jig between the first rail device, the second rail device, and the storage device along the rail-type support; and a jig that moves the jig between the second rail device and the processing position. A system for moving a work positioning jig including an elevating device for elevating and lowering between them. According to this system, the method according to the above mode (15) is suitably performed. The system described in this section is
An embodiment for performing the method according to any one of the above (16) to (19) is possible.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a more specific embodiment of the present invention will be described in detail with reference to the drawings.

FIGS. 1 to 4 show a work positioning jig moving system (hereinafter simply referred to as a "jig moving system") suitable for carrying out a work positioning jig moving method according to an embodiment of the present invention. Is shown).

This jig moving system is used in a line for producing automobiles. By the way, automobiles are generally produced through a press working line, a welding / body assembly line, a painting line, and an outfitting / final assembly line in this order. The jig moving system is used in a welding / body assembly line for assembling a part of an automobile shell body (also referred to as a body) by welding a plurality of pressed parts to each other. The plurality of pressed parts include an underbody, a lower back panel, an upper back panel, a back frame, a side member, a cowl top, a front windshield header panel, and the like. Since these pressed parts are well known, they will be briefly described below.

The underbody refers to a portion of the shell body that constitutes a floor such as a vehicle compartment and a luggage compartment. The lower back panel is a portion extending left and right at the rear end of the shell body. The upper back panel is a portion located below the rear windshield in the shell body.
The upper back panel connects the left and right quarter pillars and separates the cabin and the trunk room from each other.
This upper back panel is not present in all vehicles. The back frame is a portion of the shell body located above the rear windshield. The side member refers to a portion constituting a side surface portion of the shell body. The rear end of the side member is a quarter panel, and the left and right side members include left and right front pillars and left and right quarter pillars. The cowl top is a part of the shell body located below the front windshield, and connects the left and right front pillars. The front windshield header panel (hereinafter abbreviated as “header panel”) is a portion of the shell body located above the front windshield, and connects left and right front pillars.

In this welding / body assembly line,
In FIG. 2, the process proceeds from the left side to the right side (or from the right side to the left side). This welding / body assembly line is of a mixed production type in which the shell bodies of a plurality of types of vehicles flow, and a plurality of types of pallets 12 are used for the plurality of types of vehicles.
That is, the pallet 12 is a general-purpose pallet. The pallet 12 is advanced along the welding / body assembly line from left to right (or from right to left) in FIG.

In this welding / body assembly line,
A lower back panel setting process and a tack setting process,
The tack welding step is performed in that order. However, FIG. 2 shows a tacking setting step 20, a tacking welding step 22, and a next step 24 among the welding and vehicle body assembling steps.

The lower back panel setting step is a step of positioning and setting the lower back panel on the pallet 12 in which the underbody has already been positioned in the same posture as the final assembled state.

The tack setting step 20 is a step of setting the pallet 1 on which the underbody and the lower back panel are positioned.
Second, a step of positioning the upper back panel, the back frame, the left and right side members, the cowl panel, and the header panel. However, if the upper back panel does not exist in the vehicle to be produced this time, the temporary setting step 20 is omitted.

The tack welding step 22 includes a plurality of panels (hereinafter referred to as “workpieces”) 30 that are temporarily set.
Is positioned by a reusable jig 32, and then the work 30 is tack-welded. Here, tack welding refers to the minimum required spot welding performed to determine the shape accuracy of the shell body, and after finishing tack welding, additional punching is performed to guarantee the strength of the shell body. .

The jig moving system according to the present embodiment is used in the tack welding step 22 of the welding / body assembly steps performed as described above.

In the welding / body assembly process, as shown in FIG. 2, the pallet 12 is moved along a horizontal plane, that is, along a floor surface 34 in an assembly factory. Then, the jig moving system according to the present embodiment is configured such that the jig 3 is placed on a horizontal plane above the moving horizontal plane of the pallet 12.
Move 2 This jig moving system requires that any one of a maximum of eight types of jigs 32 (an example of “plurality of jigs”) be used at the processing position 40 of the work 30 (the execution position of the tack welding process). Then, the jig 32 is moved from any one of the five accommodating positions 42 (an example of “plural accommodating positions”) in which the jig 32 is accommodated to the processing position 40, and when the use thereof is finished, the jig 32 is moved. 32 is processing position 4
Move from 0 to any of the storage positions 42.

For this purpose, this jig moving system includes a first rail device 50 and a second rail device 52 which are arranged in series on the same horizontal plane between the five accommodation positions 42 and the processing positions 40. ing. The first rail device 50 is disposed on the side of the five storage positions 42, and the second rail device 52 is disposed on the side of the processing position 40.

The first rail device 50 has two first rails 54 parallel to each other, as shown in FIG.
The two first rails 54 are attached to a common first movable frame 56. A plurality of wheels 58 are attached to the first movable frame 56 so as to be rotatable around respective rotation axes parallel to the direction in which the first rail 54 extends.

On the other hand, the second rail device 52 has two second rails 60 parallel to each other. The two second rails 60 are attached to a second movable frame 62 common to them. The interval between the two second rails 60 is equal to the interval between the two first rails 54. The second movable frame 62 includes a plurality of wheels 6.
4 are rotatably mounted around respective rotation axes parallel to the direction in which the second rail 60 extends.

In this embodiment, the first rail device 5
Regardless of the 0 or the second rail device 52, one rail is used to move one jig 32. That is, in the present embodiment,
One rail constitutes one “rail-type support”.

The jig moving system further includes a first traverse device 70 for laterally moving the first rail device 50 in a direction in which the first rail 54 extends, and a second rail device 52 for the second rail device 52. And a second traverse device 72 that traverses together in the direction in which the rails 60 extend. The first and second traverse devices 70, 72
Are symmetrically arranged about a common center line.

The first traverse device 70 has a first fixed frame 74 located on the horizontal plane. As shown in FIG. 2, the first fixed frame 74
The pallet 12 is held in a space above the moving horizontal plane, that is, the floor surface 34, by a plurality of columns 76 extending vertically from 4. As shown in FIG. 1, the first fixed frame 74 is formed with a traveling path 78 on which the plurality of wheels 64 of the first rail device 50 travel.
The first traverse device 70 further includes a first rail device 5
0 is provided with a first traveling device 80 for traveling. The first traveling device 80 includes a driving source and a transmission device that transmits the driving force of the driving source to the first rail device 50 and the first fixed frame 74. In the present embodiment, the driving source is
An electric motor 82 fixed to the first movable frame 56 and moving together therewith is mainly constituted.

The first traverse device 70 stops the first rail device 50 at any one of the six positions in the transverse direction. As a result, the jig 32 can take seven positions, and the seven positions are the five accommodation positions 4.
2 and the processing position 40. Therefore, hereinafter, these seven positions are sequentially referred to as first to seventh intermediate positions 84.
a, 84b, 84c, 84d, 84e, 84f, 84g
I will say that.

On the other hand, the second traverse device 72
Has a second fixed frame 90 located on the horizontal plane. As shown in FIG. 2, the second fixed frame 90 includes a plurality of columns 92 extending vertically from the floor surface 34.
, The moving horizontal plane of the pallet 12, that is, the floor surface 3
4 is held in the space above. As shown in FIG. 1, a second rail device 52 is provided on the second fixed frame 90.
A traveling path 94 on which the plurality of wheels 64 travel is formed. The second traverse device 72 further includes:
A second traveling device 96 for traveling the second rail device 52 is provided. The second traveling device 96 includes a driving source and a transmission device that transmits the driving force of the driving source to the second rail device 52 and the second fixed frame 90. In the present embodiment, the drive source is mainly configured by an electric motor 98 fixed to the second fixed frame 90.

The second traverse device 72 stops the second rail device 52 at one of two positions in the transverse direction thereof. As a result, the jig 32 moves to the target position 100 which is opposed to the processing position 40 in the vertical direction.
And the first and second portions sandwiching the target position 100 from both sides.
It is moved to the standby positions 102a and 102b. That is, the second rail device 52 selectively switches to two positions including a first position where one of the two second rails 60 is located at the target position 100 and a second position where the other is located at the target position 100. They will be moved.

In this jig moving system, a gap is provided between the first rail device 50 and the second rail device 52. Therefore, this jig moving system is
Two connection rails 110 and 112 for connecting the rail device 50 and the second rail device 52 to each other are provided as connection devices. One connecting rail 110 is located at the third intermediate position 8.
The first rail 54 at the position 4c and the second rail 60 at the first standby position 102a are fixedly provided at a position where they are connected to each other with substantially no gap. The other connection rail 112 is connected to the first rail 54 when located at the fifth intermediate position 84e and the second standby position 102
The position is fixedly provided at a position where the second rail 60 is connected to the second rail 60 substantially without a gap when it is located at position b.

This jig moving system further includes a storage device 114 capable of accommodating five types of jigs 32. The first rail device 50 and the second rail device 52
, Three types of jigs 32 can be accommodated. Therefore, as described above, in this jig moving system, eight types of jigs 32 can be accommodated.

The storage device 114 is disposed on the opposite side of the first rail device 50 from the second rail device 52. The storage device 114 includes first to fifth storages 120, 122, 12 arranged in parallel with each other.
4, 126, 128. Each storage is provided with one third rail 130 as a “rail type support” for position fixing. The interval between the five third rails 130 is equal to the interval between the two first rails 54. In addition, the five third rails 1
The 30 is arranged to be connected to each second rail 60 when the second rail 60 is stopped at each intermediate position.

The jig moving system further includes, as a "jig moving device", a train 134 as a carrier that runs by itself along each of the rails 54, 60, and 130. One train 134 is prepared for each of the five types of jigs 32. Each of the trains 134 includes (a) a main body 136 and (b) each rail 54, 6 as shown in FIGS.
A plurality of wheels 138 capable of rolling on 0,130 running surfaces
(C) an electric motor (not shown) for driving at least one wheel 138, and (d) at least one wheel 13
8 (not shown).

The jig moving system further includes a lifting device 140 as shown in FIG. Lifting device 1
The reference numeral 40 indicates that the jig 32 is moved up and down between the target position 100 and the processing position 40 while supporting the jig 32 at a plurality of positions separated from each other on the horizontal plane.

The configuration of the jig moving system has been described above, and the operation thereof will be described below.

In this jig moving system, a plurality of electric trains 134 and first and second traverse devices 70 and 7 are provided.
The lifting device 140 and the lifting device 140 are electrically linked to each other, and their operating states are controlled by a control device (not shown). The control device is mainly configured by a computer.

In this jig moving system, one of the jigs 32 is moved from the storage device 114 to the target position 10.
If it is necessary to move the jig 3
2 for moving the storage device 2 from the storage device 114 to the second rail device 52 via the first rail device 50 along the rails 54 and 60, and, if necessary, the first rail device 50 and the second rail device 52. A lateral traversing step of laterally traversing at least one of them in the direction in which the rails 54, 60 extend.

Thus, the jig 32 is moved to the target position 100.
When the jig 32 is moved to
The jig 32 and the train 134 are released from mechanical cooperation, and then the jig 32 is lowered by the elevating device 140 and attached to the work 30.

At this time, before the use of the jig 32 this time, the next jig 32 is moved to the two standby positions 102.
a, 102b. Then, when the use of the jig 32 this time is completed, first, the jig 32 is raised by the elevating device 140 and the work 30
Then, the second rail device 52 is traversed to a position different from the current position by the second traverse device 72, whereby the next jig 3 that has been waiting first
2 is moved to the target position 100. Thereafter, the next jig 32 is supported by the lifting / lowering device 140 and the jig 3
2 and the train 134 are no longer mechanically linked,
The jig 32 is lowered by the lifting device 140 and attached to the next work 30.

On the other hand, one of the jigs 32 is moved to the target position 10.
If it is necessary to move the jig 32 from 0 to the storage device 114,
And is removed from the work 30. Next, the vertical feed process of moving the jig 32 from the second rail device 52 to the storage device 114 via the first rail device 50 along the rails 60 and 54 and the above-described selective horizontal feed process are performed. Will be As a result, this jig 32
Are stored in the storage device 114.

As described above, the plurality of works 30 are sequentially placed on the pallet 1
The case where the type of the jig 32 to be used in the case where the jig 32 to be used is not the same in the previous work 30 and the current work 30 when the material is conveyed to the processing position 40 by 2 is not described or changed alternately. However, when the type of the jig 32 to be used is the same between the previous work 30 and the current work 30, if the use of the previous jig 32 for the previous work 30 is completed, The jig 32 is lifted by the elevating device 140 and removed from the previous work 30, and then the jig 32 is moved to the storage device 114.
The jig 32 is lowered by the elevating device 140 and attached to the current work 30 after the current work 30 is transported to the processing position 40 by the pallet 12 without being moved toward the work 30.

On the other hand, when the type of the jig 32 to be used alternately changes among the plurality of works 30, the use of the previous jig 32 for the previous work 30 is finished. If the jig 32 is lifted by the lifting device 140 and removed from the previous work 30,
Thereafter, without moving the jig 32 toward the storage device 114, the second rail device 52 is traversed in one direction, whereby the previous jig 32 is replaced with the current jig 32. Then, after waiting for the current work 30 to be conveyed to the processing position 40 by the pallet 12, the current jig 32 is lowered by the elevating device 140 and attached to the current work 30.

Thereafter, the jig 32 of this time is moved to the work 3 of this time.
When the use of the work 30 is completed, the jig 32 is raised by the elevating device 140 and the current work 30 is stopped.
Then, without moving the jig 32 toward the storage device 114, the second rail device 52 is traversed in the reverse direction, whereby the current jig 32 is moved to the next jig 32. Be exchanged. Then, after waiting for the next work 30 to be conveyed to the processing position 40 by the pallet 12, the next jig 32 is lowered by the elevating device 140 and attached to the current work 30.

As mentioned above, one embodiment of the present invention has been described in detail with reference to the drawings. However, this is merely an example, and the present invention is not limited to the above-mentioned [Problems to be solved by the invention, means for solving the problem, and effects of the invention]. And various modifications and improvements based on the knowledge of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a plan view showing a work positioning jig moving jig moving system suitable for carrying out a work positioning jig moving method according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a front view of the jig moving system in FIG. 1;

FIG. 5 is a plan view showing an example of a conventional technique.

[Explanation of symbols]

 Reference Signs List 30 work 32 jig 40 processing position 42 accommodation position 50, 52 first and second rail devices 54, 60, 130 first to third rails 70, 72 first and second traverse devices 114 storage device 134 train 140 elevating device

Claims (7)

[Claims] 1. When any of a plurality of reusable jigs used for positioning a work needs to be used at a processing position of the work, the jig is accommodated therein. Moving the jig from one of the plurality of storage positions to the processing position, and, when the use thereof is completed, moving the jig from the processing position to any of the storage positions. And a rail device having at least one rail-type support on which the jig is moved, and when the number of the rail-type supports is plural, the plurality of rail-type supports are parallel to each other. If it is necessary to arrange a line-up and move any jig from any storage position to the processing position, move the jig from any storage position to the processing position, Dress Performing a first vertical feeding step of moving the rail device along the rail-type support, and a selective side-feeding step of feeding the rail device in the direction in which the rail-type support extends, as necessary. When it is necessary to move any of the jigs from the processing position to any of the accommodation positions, the jig is moved from the processing position to any of the accommodation positions, and the rail-type support of the rail device is moved. A method of moving a work positioning jig, comprising performing a second vertical feeding step of moving the workpiece along the vertical axis and the selective horizontal feeding step. 2. The method for moving a work positioning jig according to claim 1, wherein the plurality of rail devices are arranged in series on the same plane between the plurality of accommodation positions and the processing position. 3. The plurality of rail devices, which is disposed on the side of the processing position, is provided with two rail type support members.
3. The method for moving a work positioning jig according to claim 2, wherein the jigs are arranged in parallel with each other. 4. When it is necessary to use any of a plurality of reusable jigs used for positioning a work at a processing position of the work, the jig is accommodated therein. Moving the jig from the processing position to any of the storage positions when the use thereof is completed, wherein the plurality of storage positions and the processing position A rail device having at least one rail-type support member, the jig being moved, and a traverse device for feeding the rail device laterally in the direction in which the rail-type support member extends. A jig moving device for moving a jig between the plurality of accommodation positions and the processing position along the rail-type support; 5. The system for moving a work positioning jig according to claim 4, wherein a plurality of said rail devices are arranged in series on the same plane between said plurality of accommodation positions and said processing position. 6. The plurality of rail devices, which is arranged on the side of the processing position, is configured to connect the rail-type support to two or more rail devices.
The system for moving a work positioning jig according to claim 5, wherein the jigs are arranged in parallel with each other. 7. When it is necessary to use any of a plurality of reusable jigs used for positioning a work on a pallet moved along a horizontal plane at a processing position of the work. Moving the jig from any of a plurality of accommodation positions in which it is accommodated to a processing position, and when the use is completed, moving the jig from the processing position to any of the accommodation positions. A first rail device and a second rail device arranged in series on the same horizontal plane different from the moving horizontal plane of the pallet between the plurality of storage positions and the processing position, the first rail device comprising: The apparatus has at least one rail-type support on which the jig is moved, and when the number of the rail-type supports is plural, the plurality of rail-type supports are used. The second rail device has two rail-type supports arranged in parallel with each other, while the first rail device has a plurality of storage positions and the second rail device has a processing position. And a first traverse device for traversing the first rail device in a direction in which the rail-type support member extends, wherein the first traverse device is disposed at a position shifted upward or downward from the processing position. A second traverse device for traversing the second rail device in a direction in which the rail-type support extends, and a storage capable of accommodating a plurality of jigs having a plurality of rail-type supports arranged in parallel with each other An apparatus, wherein the first
A jig disposed between the first rail device, the second rail device, and the storage device along the rail-type support; A system for moving a work positioning jig, comprising: a jig moving device; and an elevating device that moves the jig up and down between the second rail device and a processing position.