JP4936727B2 - Work transfer equipment - Google Patents

Description

  The present invention relates to a workpiece transfer facility for transferring a workpiece and mounting it on a vehicle body in a vehicle production line.

  2. Description of the Related Art In general, a vehicle production line is provided with a workpiece transfer facility for transferring a workpiece such as an engine / mission assembly or a suspension and mounting the workpiece on a vehicle body. This work transport equipment includes an overhead conveyor that transports the vehicle body, and a slat conveyor that transports the carriage loaded with the workpiece below the overhead conveyor. After the carriage has entered the lower part of the body to be transported, By lifting the workpiece, the workpiece is mounted on the vehicle body. When the assembly work of the work by the operator is completed, the carriage from which the work has been removed is transported to the original position via an elevating device, a return conveyor, etc., then a new work is mounted, and again an overhead conveyor Is moved downward of the vehicle body conveyed.

  Such a conventional workpiece transfer facility is disclosed in Patent Document 1, for example.

JP-A-10-236641

  However, in the conventional workpiece transfer equipment, a feeding device and a dispensing device for transferring a carriage from the slat conveyor to the lifting device or transferring from the lifting device to the slat conveyor are provided on the side of the lifting device. These devices are complicated in structure, which leads to an increase in the size of the entire equipment. In addition, a clamping device for connecting the carriage to a predetermined position of the strut conveyor is provided between the strut conveyor and the carriage, and this is also complicated in structure. The transfer operation of the cart was complicated.

  Accordingly, the present invention solves the above-described problems, and provides a work transfer facility that can reduce the size and space by making a simple structure and can easily perform a work transfer operation. With the goal.

The work transfer equipment according to the present invention that solves the above problems is as follows.
A first trolley and a second trolley attached to a front end and a rear end of a carriage capable of mounting a workpiece;
First conveying means for conveying the carriage;
A first front pressing means that is provided in the first conveying means and presses the first trolley of the carriage in the conveying direction;
A first rear pressing means that is provided in the first conveying means and presses the second trolley of the carriage in the conveying direction on the upstream side in the conveying direction of the first front pressing means;
Transfer means for transferring the carriage transported by the first transport means to storage means,
The first trolley and the second trolley include a front claw that is restricted from rotating downstream in the conveyance direction, and a rear claw that is regulated from rotating upstream in the conveyance direction upstream of the front claw in the conveyance direction. Have
The first front pressing means is detached from the front claw of the first trolley at the downstream end in the conveyance direction of the first conveying means, and the first rear pressing means is transferred to the front claw of the second trolley in the conveyance direction. When the transfer means is pressed in the transport direction to the front claws of the first trolley that has entered the storage means .
The first rear side pressing means pushes up the rear claw of the second trolley from the upstream side in the conveyance direction and then presses the front claw of the second trolley in the conveyance direction,
The transfer means is configured to press the front claws of the first trolley in the transport direction when the first rear pressing means is separated from the front claws of the second trolley .

The work transfer equipment according to the present invention that solves the above problems is as follows .
A second transfer means for transferring the driving in the direction opposite to the conveying direction of the first conveying means with is provided above or below the previous SL first conveying means,
A second front side pressing means which is provided in the second transport means and presses the second trolley of the carriage in the transport direction;
A second rear-side pressing unit that is provided in the second transport unit and presses the first trolley of the carriage in the transport direction on the upstream side in the transport direction of the second front-side pressing unit;
The storage means is an elevating means for elevating the carriage between the first conveying means and the second conveying means,
The transfer means is pressed by the first trolley to be discharged, the second trolley entering the second transport means is pressed by the second front pressing means, and the transfer means is moved from the first trolley. It is characterized by being detached and transferred.

The work transfer equipment according to the present invention that solves the above problems is as follows .
Pre Kiutsuno means, characterized in that provided in the lower portion of said housing means.

According to the workpiece transfer facility according to the present invention , the first trolley and the second trolley attached to the carriage on which the workpiece can be mounted, the first transfer means for transferring the carriage, the first transfer means and the first transfer means are provided. A first front-side pressing unit that presses the first trolley of the carriage in the conveyance direction; and a second trolley of the carriage that is provided in the first conveyance unit and that is upstream of the first front-side pressing unit in the conveyance direction. First rear pressing means, and transfer means for transferring the carriage transported by the first transport means to storage means, from the first trolley at the downstream end in the transport direction of the first transport means. The first front-side pressing means is released, and the first rear-side pressing means is transported by pressing the second trolley in the transport direction, and is transferred to the first trolley that has entered the storage means. The by transfer by pressing in the transport direction, the equipment can be made compact and space saving because forming a simple configuration, the transfer operation of the carriage can be easily performed.

According to the work conveyance equipment according to the present invention, before Symbol first trolley and the second trolley includes a pawl before being restricted from rotating in the conveying direction downstream side, the conveyance direction upstream in the conveying direction upstream side of the front claw A rear claw that is restricted from rotating to the side, and disengages the first front pressing means from the front claw of the first trolley at the downstream end in the conveyance direction of the first conveyance means, and the first rear side The pressing means is transported by pressing the front claw of the second trolley in the transport direction, and the transfer means is pressed in the transport direction by the front claw of the first trolley that has entered the storage means. As a result, the equipment can be configured in a simple manner, so that downsizing and space saving can be achieved, and the transfer operation of the carriage can be easily performed.

According to the work conveyance equipment according to the present invention, pressing before Symbol the front claw of the second trolley from the first rear-side pressing means pushes up the rear claws of the second trolley from upstream side in the conveying direction By doing so, even if the first front pressing means is detached from the front claw of the first trolley, the carriage can be easily transported to the storage means side.

According to the work conveyance equipment according to the present invention, before Kiutsuno means conveying direction the front claws of the first trolley when the first rear-side pressing means has issued away from the front claws of the second trolley The carriage can be smoothly transferred by pressing to the right.

According to the work conveyance equipment according to the present invention, prior to SL and second conveying means for conveying driven in the direction opposite to the conveying direction of the first conveying means with is provided above or below the first conveying unit, the second conveyance And a second front pressing means for pressing the second trolley of the carriage in the conveying direction, and a first of the carriage provided on the second conveying means and upstream of the second front pressing means in the conveying direction. A second rear-side pressing means for pressing the trolley in the transport direction, and the storage means is an elevating means for raising and lowering the carriage between the first transport means and the second transport means, and the transfer means The first trolley is pressed and discharged, the second trolley that has entered the second transport means is pressed against the second front pressing means, and the transfer means is detached from the first trolley and transferred. To do More, the truck can be used by circulating in a space-saving.

According to the work conveyance equipment according to the present invention, by pre Kiutsuno means provided in the lower portion of said housing means, further, it is possible to reduce the size and space-saving equipment.

  Hereinafter, the work conveyance equipment according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall side view of a workpiece transfer facility according to an embodiment of the present invention, FIG. 2 is an overall plan view of the workpiece transfer facility according to an embodiment of the present invention, and FIG. FIG. 4A is a diagram showing the placement of the front pusher and the first trolley when the chain conveyor is transported, and FIG. 4B is the rear pusher and the second when the chain conveyor is transported. FIG. 5 is a diagram showing the arrangement of the trolley, FIG. 5 is a diagram showing how the carriage is transferred from the lifting device to the return conveyor, and FIG. 6A is the arrangement of the rear pusher and the first trolley when the return conveyor is conveyed. FIG. 7B is a view showing the arrangement of the front pusher and the second trolley when the return conveyor is conveyed, and FIG. 7 is a view showing the storage state of the cylinder storage portion.

  First, the whole workpiece transfer facility will be described with reference to FIG.

  As shown in FIG. 1 or 2, in the work transfer facility 1, an overhead conveyor 2 extending in the horizontal direction is provided above the floor F, and the overhead conveyor 2 has a pair of left and right holding the vehicle body B. The work hanger 3 is supported so as to be movable. That is, the vehicle body B is conveyed in the h direction in the figure. A traveling plate 4 is supported flush with the floor F, and a chain conveyor (first conveying means or second conveying means) extending below the traveling plate 4 so as to be parallel to the overhead conveyor 2. ) 5 is provided. The chain conveyor 5 conveys a carriage 6 on which a front suspension FS as a work is mounted via a pallet P in the i direction in the figure. Further, a traveling plate 7 that is horizontally supported is disposed on the underground floor T1 formed below the floor F, and a return extending below the traveling plate 7 so as to be parallel to the chain conveyor 5 is provided. A conveyor (second conveying means or first conveying means) 8 is provided. The return conveyor 8 conveys the carriage 6 on which the pallet P is mounted in the r direction in the figure.

  An elevating device (storage means and elevating means) 9 is supported between the downstream end of the chain conveyor 5 and the upstream end of the return conveyor 8 so as to be movable up and down, while the upstream side of the chain conveyor 5 (the end of the travel plate 4). ) And a downstream end of the return conveyor 8, an elevating device (storage means and elevating means) 10 is supported so as to be elevable. The lifting device 9 conveys the carriage 6 from the downstream end of the chain conveyor 5 to the upstream end of the return conveyor 8, and the lifting device 10 moves the carriage 6 from the downstream end of the return conveyor 8 to the upstream side of the chain conveyor 5. It is to be transported.

  An actual pallet conveyor 11 is provided on the upstream side of the chain conveyor 5 so as to extend substantially on the same line as the chain conveyor 5. The actual pallet conveyor 11 is provided at substantially the same height as the carriage 6 when the lifting device 10 reaches the highest position, and conveys the pallet P carrying the front suspension FS in the j direction in the figure. It is. A supply device 12 is provided at the downstream end of the actual pallet conveyor 11. The supply device 12 is provided at substantially the same height as the actual pallet conveyor 11, and supplies the pallet P conveyed from the actual pallet conveyor 11 to the carriage 6 mounted on the lifting device 10 that has reached the highest position. Is.

  An empty pallet conveyor 13 extending so as to be parallel to the actual pallet conveyor 11 is provided on the underground floor T2 formed between the floor F and the underground floor T1. The empty pallet conveyor 13 is provided at substantially the same height as the carriage 6 when the lifting device 10 reaches the intermediate position, and conveys the empty pallet P in the k direction in the figure. . A discharge device 14 is provided at the upstream end of the empty pallet conveyor 13. This discharge device 14 is provided at substantially the same height as the empty pallet conveyor 13, and receives the pallet P that has been emptied from the lifting device 10 that has reached the intermediate position, and discharges it to the empty pallet conveyor 13.

  Further, on the floor F, work tables 15 and 16 on which the worker S works are provided. The work table 15 is arranged at substantially the same height as the vehicle body B to be conveyed, while the work table 16 is pulled in the downstream direction by a carriage 6 (to be described later) on the floor F, and is returned to the upstream direction by its own drive. It is a movable work table.

  Next, the principal part of a workpiece transfer facility will be described with reference to FIGS.

As shown in FIGS. 3 to 7, the chain conveyor 5 is provided with a pair of front pushers (first front pressing means) 21 and rear pushers (first rear pressing means) 22 that are supported at predetermined intervals. . Similarly, the return conveyor 8 has a pair of rear pushers being supported at a predetermined distance (second rear side pressing means) 31 and front pusher (second front pressing means) 32 is provided.

  The carriage 6 includes a substrate 41 and wheels 42 that are rotatably supported by the substrate 41 and rotate on the traveling plates 4 and 7. A lifter 43 is provided on the upper surface of the substrate 41, and a holding portion 44 for holding the pallet P is provided on the upper portion of the lifter 43. Further, a drive unit 45 that moves the lifter 43 in the vertical direction is provided in front of the lifter 43 in the i direction. On the other hand, a first trolley 46 and a second trolley 47 are provided on the lower surface of the substrate 41, and these trolleys 46 and 47 penetrate through the grooves 4 a and 7 a that open in the i and r directions in the traveling plates 4 and 7. Yes. A front claw 48 and a rear claw 49 are swingably supported on the lower end of the first trolley 46, and a front claw 50 and a rear claw 51 are swingably supported on the lower end of the second trolley 47. Yes.

  The front claw 48 and the rear claw 49 are supported symmetrically so that the pressure receiving portions 48a and 49a face each other and the back portions 48b and 49b are arranged on the outside. Similarly, the front claw 50 and the rear claw 51 are supported symmetrically so that the pressure receiving portions 50a and 51a face each other and the back portions 50b and 51b are arranged on the outside. In addition, even when a force is applied from the pressure receiving portions 48a, 49a, 50a, 51a side in a state where the positions of the claws 48, 49, 50, 51 are not subjected to any action from the outside, that is, maintained by their own weight, The swinging of the claws 48, 49, 50, 51 is restricted. That is, the claws 48, 49, 50, 51 are swung only when a force is applied from the back surface portions 48b, 49b, 50b, 51b.

  The elevating device 9 has a hollow structure, and a cylinder storage portion 9a is formed in the inside thereof. On the other hand, a groove 9b that is linearly connected to the grooves 4a and 7a when the lifting device 9 moves to the highest or lowest position is opened on the upper surface of the lifting device 9, and the groove 9b is formed in the cylinder housing portion 9a. Communicated with.

  A guide rail 61 extending so as to be parallel to the groove 9 b and a cylinder 62 disposed below the guide rail 61 are provided in the cylinder storage portion 9 a. The guide rail 61 and the cylinder 62 are supported on the bottom surface of the cylinder storage portion 9 a via the fixing member 63 on the base end side, and are connected to each other by the connecting member 64.

  A sliding member 65 is supported at the tip of the rod portion 62a of the cylinder 62. The sliding member 65 rotatably supports the roller 67 via the roller support member 66, while the guide rail 61 supports the roller 67. Is slidably supported. The roller support member 66 supports a feeder claw 69 via a feeder claw support member 68. A pressing portion 69a is formed at the distal end of the feeder claw 69, and a cam follower 69b is formed at the base end thereof. Has been. The support position of the feeder claw 69 by the feeder claw support member 68 is set slightly on the distal end side so that the base end side is lowered by its own weight.

  In addition, since the structure of the raising / lowering apparatus 10 is made symmetrical with the structure of the raising / lowering apparatus 9, the detailed description about the raising / lowering apparatus 10 is abbreviate | omitted.

  A guide plate 70 is provided on the guide rail 61, and a horizontal portion 70a and an inclined portion 70b are formed on the guide plate 70. The installation position of the guide plate 70 is set so that the cam follower 69b is placed on the horizontal portion 70a when the feeder claw 69 moves to the most proximal side of the guide rail 61. The members 61 to 70 constitute transfer means.

  Therefore, in order to assemble the front suspension FS to the vehicle body B in the work transfer facility 1 by making the above-described configuration, first, the pallet P on which the front suspension FS is mounted is transferred from the actual pallet conveyor 11 to the supply device 12. . When the lifting device 10 reaches the highest position, the pallet P arranged on the supply device 12 is supplied onto the carriage 6 mounted on the lifting device 10. Next, after the carriage 6 is moved onto the traveling plate 4, the carriage 6 is conveyed while being synchronized with the vehicle body B that has been conveyed. At the same time, the work table 16 towed by the carriage 6 slides and the lifter 43 moves up, and the operator S performs the work of assembling the front suspension FS to the vehicle body B.

When the assembling work is completed, the lifter 43 is lowered, and the carriage 6 is transported to the downstream side of the chain conveyor 5 with the empty pallet P mounted thereon, and then transferred to the lifting device 9. Next, when the lifting device 9 is lowered to the lowest position, the carriage 6 is transferred to the return conveyor 8, conveyed by the return conveyor 8, and then transferred to the lifting device 10. When the lifting device 10 is raised to the underground floor T2, the empty pallet P mounted on the carriage 6 is discharged to the empty pallet conveyor 13 by the discharge device 14 . Thereafter, when the lifting device 10 is further raised to the highest position, the pallet P on which the new front suspension FS is mounted is supplied to the carriage 6. In this way, the operation of assembling the front suspension FS to the vehicle body B can be repeatedly performed by circulating the cart 6 in the order of the chain conveyor 5, the lifting device 9, the return conveyor 8, and the lifting device 10.

  Here, the conveyance by the chain conveyor 5 and the return conveyor 8, the transfer from the chain conveyor 5 to the lifting device 9, and the transfer from the lifting device 9 to the return conveyor 8 will be described in detail with reference to FIGS. The transfer from the return conveyor 8 to the lifting device 10 and the transfer from the lifting device 10 to the chain conveyor 5 can be easily understood from the following description, and thus the description thereof is omitted.

  When the chain conveyor 5 conveys the carriage 6, as shown in FIGS. 3 and 4, the front pusher 21 contacts the pressure receiving portion 48 a of the front claw 48 (position f 1), while the rear pusher 22 is the back portion of the rear claw 51. It arrange | positions in the conveyance direction (i direction) of 51b (position r1). That is, the carriage 6 is transported by the chain conveyor 5 when the pressure receiving portion 48 a is pressed in the transport direction by the front pusher 21.

  Next, when the carriage 6 is transferred from the chain conveyor 5 to the lifting device 9, as shown in FIG. 3, first, when the carriage 6 is conveyed to the downstream end of the chain conveyor 5, the front pusher 21 receives pressure. The rear pusher 22 moves forward (position r2) while pushing up the back surface part 51b, and presses the pressure receiving part 50a in the transport direction. That is, the carriage 6 starts to be transferred to the lifting device 9 when the pressure receiving portion 50 a is pressed in the transport direction by the rear pusher 22. And when the 1st trolley 46 moves to the back of the sliding member 65, the rod part 62a of the cylinder 62 will begin to expand | extend. That is, when the carriage 6 is transferred to the lifting device 9, the sliding member 65 is moved ahead of the first trolley 46.

  As described above, when the rod portion 62a of the cylinder 62 is extended, the cam follower 69b of the feeder claw 69 slides down from the horizontal portion 70a to the inclined portion 70b, so that the pressing portion 69a starts to gradually rise. Further, when the rod portion 62a of the cylinder 62 is extended, the pressing portion 69a presses the pressure receiving portion 48a in the transport direction (position f3), and the rear pusher 22 is released downward from the pressure receiving portion 50a. When the rod portion 62a of the cylinder 62 is further extended, the pressure receiving portion 48a is pressed in the transport direction by the pressing portion 69a, whereby the carriage 6 is transferred to a predetermined position of the lifting device 9 (position f4). , Position r4).

  Next, when the carriage 6 is transferred from the lifting device 9 to the return conveyor 8, as shown in FIG. 5, first, when the rod portion 62 a of the cylinder 62 is shortened, the pressing portion 69 a receives the pressure received by the rear claw 49. The part 49a is pressed in the transport direction (position f5). That is, the carriage 6 starts to be transferred to the return conveyor 8 when the pressure receiving portion 49a is pressed in the transport direction by the pressing portion 69a. Further, when the rod portion 62a of the cylinder 62 is shortened, the cam follower 69b of the feeder claw 69 is mounted on the horizontal portion 70a from the inclined portion 70b, so that the pressing portion 69a starts to gradually fall. That is, the pressing portion 69a is released downward from the pressure receiving portion 49a (position f6). At the same time, the front pusher 32 comes into contact with the pressure receiving portion 51a and presses it in the transport direction (position r6).

  The carriage 6 is conveyed by the return conveyor 8 when the pressure receiving portion 51a is pressed in the conveyance direction by the front pusher 32. When the return conveyor 8 conveys the carriage 6, as shown in FIGS. 5 and 6, the rear pusher 31 is disposed rearward in the conveyance direction (r direction) of the rear portion 48 b of the front pawl 48 (position f 7), and the front pusher 32 contacts the pressure receiving portion 51a of the rear claw 51 (position r7).

Therefore, according to the workpiece transfer facility according to the present invention, the front pusher 21 is detached from the pressure receiving portion 48a at the downstream end of the chain conveyor 5 in the transfer direction, and the rear pusher 22 is pressed against the pressure receiving portion 50a for transfer. By pressing the pressing portion 69a to the pressure receiving portion 48a that has entered 9 and transferring it, the equipment can be simplified in structure, so that downsizing and space saving can be achieved, and ascending and descending from the chain conveyor 5 of the carriage 6 The transfer operation to the apparatus 9 can be easily performed. Moreover, since the rear pusher 22 moves forward while pushing up the back surface portion 51b and presses the pressure receiving portion 50a in the conveying direction, even if the front pusher 21 is detached from the pressure receiving portion 48a, the carriage 6 can be easily moved to the lifting device 9 side. Can be conveyed. Further, since the pressing portion 69a presses the pressure receiving portion 48a in the transport direction when the rear pusher 22 is separated from the pressure receiving portion 50a, the carriage 6 can be transferred smoothly. Furthermore, since the transfer device including the guide rail 61, the cylinder 62, the feeder claw 69, the guide plate 70, and the like has a storage structure in the lower part of the elevating devices 9 and 10, further downsizing and space saving of the equipment are achieved. Can do.

Then, the front pusher 32 and the rear pusher 31 similar to the front pusher 21 and the rear pusher 22 of the chain conveyor 5 are provided on the return conveyor 8, and the pressing portion 69 a is pressed by the pressure receiving portion 49 a to be discharged and enters the return conveyor 8. By causing the pressure receiving portion 51a to press the front pusher 32 and detaching the pressing portion 69a from the pressure receiving portion 49a and transferring the pressure, the carriage 6 can be used in a space-saving manner in the work transfer equipment 1.

  It can be applied to work transfer equipment that transfers the engine / mission assembly and mounts it on the vehicle body.

It is a whole side view of the workpiece conveyance equipment which concerns on one Example of this invention. It is a whole top view of the work conveyance equipment concerning one example of the present invention. It is the figure which showed a mode that the trolley | bogie was transferred to the raising / lowering apparatus from a chain conveyor. (A) is the figure which showed arrangement | positioning of the front pusher and 1st trolley at the time of chain conveyor conveyance, (b) is the figure which showed arrangement | positioning of the rear pusher and 2nd trolley at the time of chain conveyor conveyance. It is the figure which showed a mode that the trolley | bogie was transferred from the raising / lowering apparatus to a return conveyor. (A) is the figure which showed arrangement | positioning of the rear pusher and 1st trolley at the time of return conveyor conveyance, (b) is the figure which showed arrangement | positioning of the front pusher and 2nd trolley at the time of return conveyor conveyance. It is the figure which showed the storage state of the cylinder storage part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work conveying equipment 5 Chain conveyor 6 Cart 8 Return conveyor 9, 10 Lifting device 21, 32 Front pusher 22, 31 Rear pusher 46 First trolley 47 Second trolley 28, 30 Front claw 29, 31 Rear claw 28a, 29a, 30a , 31a Pressure receiving portion 28b, 29b, 30b, 31b Rear portion 62 Cylinder 69 Feeder claw 69a Pressing portion 69b Cam follower 70 Guide plate 70a Horizontal portion 70b Inclined portion B Vehicle body FS Front suspension P Palette F Floor T1, T2 Underground floor S Worker

Claims (3)

A first trolley and a second trolley attached to a front end and a rear end of a carriage capable of mounting a workpiece;
First conveying means for conveying the carriage;
A first front pressing means that is provided in the first conveying means and presses the first trolley of the carriage in the conveying direction;
A first rear pressing means that is provided in the first conveying means and presses the second trolley of the carriage in the conveying direction on the upstream side in the conveying direction of the first front pressing means;
Transfer means for transferring the carriage transported by the first transport means to storage means,
The first trolley and the second trolley include a front claw that is restricted from rotating downstream in the conveyance direction, and a rear claw that is regulated from rotating upstream in the conveyance direction upstream of the front claw in the conveyance direction. Have
The first front pressing means is detached from the front claw of the first trolley at the downstream end in the conveyance direction of the first conveying means, and the first rear pressing means is transferred to the front claw of the second trolley in the conveyance direction. When the transfer means is pressed in the transport direction to the front claws of the first trolley that has entered the storage means .
The first rear side pressing means pushes up the rear claw of the second trolley from the upstream side in the conveyance direction and then presses the front claw of the second trolley in the conveyance direction,
The transfer means presses the front claw of the first trolley in the conveyance direction when the first rear pressing means is separated from the front claw of the second trolley. . In the work conveyance equipment according to claim 1 ,
A second conveying means provided above or below the first conveying means and driven to convey in a direction opposite to the conveying direction of the first conveying means;
A second front side pressing means which is provided in the second transport means and presses the second trolley of the carriage in the transport direction;
A second rear-side pressing unit that is provided in the second transport unit and presses the first trolley of the carriage in the transport direction on the upstream side in the transport direction of the second front-side pressing unit;
The storage means is an elevating means for elevating the carriage between the first conveying means and the second conveying means,
The transfer means is pressed by the first trolley to be discharged, the second trolley entering the second transport means is pressed by the second front pressing means, and the transfer means is moved from the first trolley. A workpiece transfer facility characterized by separating and transferring. In the work conveyance equipment according to claim 1 or 2 ,
The workpiece transfer facility, wherein the transfer means is provided below the storage means.

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