JPS6260703A - Take in/out device for transfer apparatus - Google Patents

Abstract

PURPOSE:To prevent the generation of dust, in a take in/out device for a transfer apparatus, by constructing such that a take in/out frame is arranged through a static slider on a guide rod provided on an elevating/lowering frame and driving through a linear step motor. CONSTITUTION:Two guide rods 51, 52 are stretched horizontally in parallel over an elevating/lowering frame 5 while a linear step motor 7 is arranged on the frame 5F then static sliders 53, 54 are fitted slidably to the guide rods 51, 53 thus to stride a take in/out frame 8 over the static sliders 53, 54. With such arrangement, the take in/out frame 8 can be moved by the linear step motor 7 through the static sliders 53, 54 along the guide rods 51, 52 without contact thus to prevent the generation of dust.

Description

[Detailed description of the invention] Industrial application field The invention eliminates dust in clean rooms etc.
Alternatively, the present invention relates to an in/out device for a transfer device that moves and rotates articles while extremely suppressing dust generation.

BACKGROUND ART AND PROBLEMS Conventionally, as an article transfer device in a clean room, a movable body is provided on a guide rod via a bearing, and this movable body is provided with an attachment suitable for transferring articles.

For this reason, the friction f between the guide rod and the movable body may cause dust to be generated due to wear of the article, or dust may be generated from the moving means of the movable body.

For this reason, there was a problem that it was not suitable for use in a high-grade clean area within a clean room.

The object of the present invention is to provide an access device in which the movable body and the fixed side are not in contact with each other via a static pressure slider, and dust generation is extremely suppressed.

Means for solving the problem Along the traveling rails arranged over the range of goods transfer,
A transfer device that is movable over a predetermined section and has a movable traveling frame.

A plurality of supports are erected on the traveling frame.

B comprising an elevating frame suspended and supported from the upper part of the column by a plurality of cables, and a guide rod disposed along the column, and serving as the guide rod and the elevating frame.
A pressure slider and a magnetic guide are used to move up and down without rocking, and a static pressure slider allows the frame to be moved in and out without contact with the guide rod and II near step motor arranged on the lift frame. %, and the fork can be freely rotated on this in/out frame.
Items are taken in and out without generating dust.

Example The present invention will be described below based on embodiments shown in the drawings.

Figure 1 is a front view of the transfer device, Figure @2 is the same side I view, and Figure @J is the same plan view as Figure 1.

L denotes a storage shelf for storing items in multiple stages; in the illustrated embodiment, a running rail is laid on the floor between opposing storage shelves, and a running rail is used to run along this running rail and over the entire length of the rail. Stretch the cable and drive the cable! i1J
drive in the forward or reverse direction. Also on the running rail
ζ is provided with a running frame 1, a part of the cable 2 is locked to this running frame, and the running frame is moved forward or backward by the 'qA movement of the cable. Either a linear pair II ring is used between this running frame and the running rail, or a multi-strand fixed core made of magnetic material is protruded over the entire length of the rail on both sides of the running rail, and this running rail is attached to the lower surface of the running frame. Floating cores may be provided opposite both sides, and the traveling frame may be floated without contact by the magnetic attraction force of the fixed core and the floating core, and the cables may be driven to assist in moving the traveling frame. When the traveling frame floats due to the attraction force of this magnetic field, a guide rail // is arranged along the traveling rail to stabilize the traveling, and a static pressure slider l/ that comes into contact with both sides f of this rail // is placed on the lifting frame side. With this static pressure slider, the gap between the fixed core and the floating core is always kept constant even when the traveling frame moves.

The support for the running frame that runs along the various running rails is of the <11 near bearing + 1 link type as described above.

Other than the magnetic guide type, various types can also be adopted.

On the running frame l, there are a plurality of supports, for example, as shown in the figure, each of the squares of the running frame has support posts l.

4... will be established. The lengths of these four pillars are determined so that the elevating frame can be raised to the top of the storage shelf, and a sheep (IJ) is attached to the top of these pillars.
, 4141 are rotatably supported, and a wire rope or other cable <11. Hook <11 and attach the tip of each cable to the lifting frame! At the same time, the other end of the cable is wound around a drum 17 placed on a traveling frame, and the drum 4'7 is rotated in forward and reverse directions by the drive device t to wind up the cable. , and rewind to raise and lower the lifting frame. In order to raise and lower this lifting frame smoothly while maintaining a predetermined accurate posture, two wooden guide rods (t/, t) are placed in the vertical direction along the support. Static pressure slider t on guide rod d/
J and the magnetic guide ta to the other.

or! Wooden guide rod and static pressure slider
When J, tJ is inserted, this is F Rodsdoi/, 1
The upper and lower ends of the frame are supported by brackets J-07j on the pillar side.

The above external pressure slider tJ is a round pipe down guide rod d
/, and blows clean pressurized air into the minute gap formed between the inner peripheral surface of this static pressure slider and the outer peripheral surface of the guide rod to support the two in a non-contact manner and enable sliding. . This static pressure slider is Universal John Toy J1
The Shiba Samurai is elevated through the frame.

The magnetic guide All is fitted into a rectangular pipe-shaped guide rod, and a floating core with permanent magnets and magnetic materials arranged alternately is formed on the inner surface of this magnetic guide. It is placed in opposition to a fixed core (@ magnetic body) and guided without contact by the magnetic attraction force between both cores. The static pressure slider or the combination fζ of the static pressure slider and the magnetic guide stabilizes the vertical movement of the vertical movement frame.

As shown in detail in FIGS. 4 and 5, an egress/exit frame t is provided on the elevating frame.

This means that at least a wooden guide rod j is attached to the lifting frame j.
/, j are installed horizontally and parallel to each other, and this guide rod j/,! Frame jFJ arranged parallel to J
This linear step motor 7 is arranged, and this guide rod j/.

! Slide the static pressure slider, r, 3,341 onto the co, and then both static pressure sliders! J.

341 so as to straddle one inlet/outlet frame, and each static pressure slider jJ, j4 and the inlet/outlet frame t are fixed. When the moving frame is moved along the guide rod by the core of the linear step motor installed in the lifting frame, it is supported by the static pressure slider without contact, and the moving frame moves smoothly and without generating dust. .

An axis t/ is erected on this entry/exit frame j, and this axis t/
The rotatable boss 12 is inserted into the boss tJ.
A fork JJ or other attachment is protruded into one end of the fork JJ or other attachment so that the object to be transported can be supported.

Also, the post-co is a bracket r protruding from the entrance/exit frame.
The fork tJ is rotatably engaged with the *+a shank device j fixed to 4, and the fork tJ is rotated within a predetermined corner around the axis r/.

In addition, as shown in Figure 1, the static pressure slider magnetic guide that serves on the moving frame and the air and power supply to @@*N are connected to the moving frame side and the fixed side, for example, the wall surface, respectively. , the tips of the wooden guides J and D4, which are pivoted at the DEJ, are pivoted to each other! This guy) is pivoted to the air supply duct and power supply cable (both not shown) supported by Ide 3. This is what we do.

In the transfer device configured as described above, the elevating frame supported by the fork or not supported is raised and lowered to a predetermined height and then stopped. This is done stably by winding and unwinding the cable, and by using a guide rod and a static pressure slider. Then, when the 7th oak matches the stage of the shelf where articles are taken in and taken out, the loading/unloading frame is moved next. This entry/exit frame has a guide rod j/ which serves horizontally for the elevating frame, a static pressure slider J on j, 31.
t41, the movement guidance is performed without contact, and the input/exit frame is moved along the guide rail J/ by the drive of the linear step motor 7 on the Cζ frame 5F.
, move along J-co without contact. In this case, after moving the loading/unloading frame to a predetermined position in the opposite direction to the article loading/unloading machine, the boss r is rotated by first driving the turning gear 4ζ.

Pivot the fork r3 around the axis r/. At this time, the entry/exit frame is in the retracted position, so the fork does not come into contact with the struts or cables. When the fork 1j becomes parallel to the guide rails J/ and JiJ, the first step is to move the entry/exit frame forward in the opposite direction. This causes the fork to enter the shelf and support the article. Of course, in order to transfer items from the shelf using this fork, the fork must be raised slightly, or when transferring items from the fork to the shelf, the 7 oak must be inserted at a position slightly above the shelf. lower it a little. This can be done by slightly moving the lifting frame up and down, or by providing the drive unit @IrJ with a lifting function. After transferring the articles, the forks are moved back and the loading/unloading frame is returned to its original position.

Great Effects of the Invention In accordance with the present invention, 7 frames are provided for entry and exit via static pressure sliders on the rotary wooden frame that serves as the elevating frame that moves up and down according to the storage shelf stage lζ, and moreover, a linear step motor is used. Since it is driven, it is slidably supported without contact, and dust generation can be suppressed.

In addition, by placing a rotatable fork on the elevating frame and combining the rotation of this fork with the movement of the retractable frame, there is an advantage that the fork can be easily inserted and removed between narrow storage shelves to take out and store items. be.

[Brief explanation of the drawing]

@/The figure is a front view of the entire transfer device, and Figure 2 is the same side r! Figures E and J are open plan views, Figure 1 is a front view of the entry/exit frame section, and Figure @j is the same plan view. / is the running rail, ko is the running cable, and J is the drive equipment! i
, 4 is the running frame, and 42 is the support. aj, ita are the cables, and j is the lifting frame. A/, Iko are the guide rods, tJ is the external pressure slider%, j4t is the magnetic guide, 7 is the linear step motor, r is the retractable frame, and J is the fork. Patent author: Outside Hitachi Kiden Industries, Ltd. / name

Claims (1)

[Claims] (1) A transfer device that is movable over a predetermined section along a traveling rail arranged over an article transfer range, comprising a freely movable traveling frame and a plurality of supports on the traveling frame. erected, an elevating frame suspended and supported from the upper part of the pillar by a plurality of cables, and a guide rod disposed along the pillar, and a static elevating frame provided on the guide rod and the elevating frame. A pressure slider and a magnetic guide are used to move up and down without rocking, and an in/out frame is provided so as to be movable without contact via a static pressure slider with respect to a guide rod and a linear step motor arranged on the elevating frame. , and a fork is rotatably provided on the access frame.