JP2019043740A - Work-piece loading method and positioning device - Google Patents

Abstract

To provide a work-piece loading method and a positioning device adapted to load/position a rectangular plate with reference to a reference position in XY directions of a pallet, for a pallet on a vertically movable elevator in a shelf device.SOLUTION: A work-piece loading method is adapted to load a tabular work-piece on an elevator vertically movably provided in front of a shelf device. A positioning member 29 for reciprocating between an avoidance position 37A where the elevator 9 avoids a vertically movable region and a reference position 37B in a right-left direction for positioning a work-piece W in the right-left direction is positioned to the reference position 37B in conjunction with descending of the elevator 9. One end in the right-left direction of the work-piece W is abutted against and positioned to an abutment face 37F provided on the positioning member 29, and the work-piece W in a positioned state is loaded on the elevator 9. During positioning of the positioning member 29 to the reference position 37B, the weight of the elevator 9 acts on the positioning member 29.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a workpiece placement method for placing a plate-like workpiece on an elevator provided on the front side of a shelf device so as to be movable up and down, and when placing the workpiece on the elevator, The present invention relates to a positioning device for positioning one end side at a reference position in the left-right direction. More specifically, a positioning member for positioning one end side in the left-right direction of the workpiece is positioned at the reference position in conjunction with the lowering of the elevator, and the workpiece mounting is made such that the one end side of the workpiece contacts the positioned positioning member. The present invention relates to a placement method and a positioning device.

  2. Description of the Related Art Conventionally, a material pallet on which plate-like workpieces to be supplied to a plate material processing machine such as a punch press or a laser processing machine are stacked and placed is stored in a storage shelf in a shelf device so as to be freely inserted and removed. In addition, there exist patent documents 1, 2 etc. as a prior example regarding a shelf apparatus.

JP 2006-182564 A JP2013-129467A

  By the way, the shelf apparatus 1 is configured as schematically and schematically shown in FIG. That is, the shelf apparatus 1 includes a shelf frame 3 having a frame structure. The shelf frame 3 is provided with a plurality of shelves 7 through which the pallet 5 can enter and exit. In order to put in and out the pallet 5 with respect to each shelf 7, an elevator (lifter) 9 is vertically movable on the front side (front side in the Y-axis direction) of the shelf frame 3 and corresponds to each shelf 7. It is provided with positioning freely. The elevator 9 is provided with a traverser 11 that can draw the pallet 5 from the shelf 7 and can carry the pallet 5 from the elevator 9 into the shelf 7 so as to be movable back and forth.

  With the above configuration, the pallet 5 can be pulled out from the shelf 7 in the shelf frame 3 onto the elevator 9 by the traverser 11. Then, the pallet 5 on the elevator 9 can be carried into the shelf 7.

  By the way, in order to stack and mount the plate-like workpiece W on the pallet 5, as shown in FIG. 6, the skid 13 on which the workpiece W is stacked and mounted in advance is mounted on the pallet 5. One end side 13Y in the Y-axis direction of the skid 13 coincides with a reference position in the Y-axis direction. The one end side 13X in the X-axis direction of the skid 13 coincides with the reference position in the X-axis direction. Therefore, the crossing position O between the one end side 13X in the X-axis direction and the one end side 13Y in the Y-axis direction is a reference position in the X-axis direction and the Y-axis direction.

  By the way, one end side in the Y-axis direction of the rectangular workpiece W stacked and mounted on the skid 13 coincides in advance with the one end side 13Y by a known method. The one end side of the workpiece W in the X-axis direction coincides with the one end side 13X. That is, the reference position of the rectangular workpiece W stacked and placed on the skid 13 is matched with the reference position of the skid 13 in advance.

  And when mounting the skid 13 on the pallet 5 on the elevator 9, it carries out as follows. That is, the skid 13 is placed on the elevator 9 lowered to the appropriate height position using a forklift. In this case, the skid 13 is placed on the pallet 5 on the elevator 9 from the front side (left side in FIG. 5).

  That is, a plurality of Y-axis reference pins 15 detachably provided at the reference position in the Y-axis direction of the pallet 5 are brought out from the holes in the pallet 5. Then, the skid 13 is carried onto the pallet 5 by a forklift, and the Y-axis reference pin 15 is attached to be planted in a hole formed in the pallet 5. Thereafter, the reference position (one end side 13Y) in the Y-axis direction of the skid 13 is brought into contact with the Y-axis reference pin 15, and the fork in the forklift is pulled out from the lower side of the skid 13 to the front side in the Y-axis direction. The skid 13 is positioned with respect to the Y axis direction. At this time, as described above, the reference position of the skid 13 in the Y-axis direction and the reference position of the workpiece W in the Y-axis direction are matched in advance, so that the workpiece W is positioned in the Y-axis direction.

  By the way, the workpiece W may be unloaded from the skid 13 on the pallet 5 in the left-right direction (X-axis direction) and conveyed to the plate material processing machine. Therefore, the pallet 5 is not provided with an X-axis reference pin corresponding to the Y-axis reference pin 15 for positioning the skid 13 at the reference position in the X-axis direction. On the pallet 5, the X-axis reference mark 17 is described by, for example, paint.

  Therefore, the forklift operator visually positions the skid 13 so that the one end portion 13X in the X-axis direction and the X-axis reference mark 17 coincide with each other. Therefore, positioning of the skid 13 with respect to the pallet 5 in the X-axis direction is troublesome. Even if one end 13X of the skid 13 in the X-axis direction matches the X-axis reference mark 17, since the X-axis reference mark 17 has a width, the skid 13, that is, the workpiece W is moved to the reference position in the X-axis direction. Is difficult to position accurately.

  The present invention has been made in view of the above-described problems, and is a work placing method for placing a plate-like work on an elevator that can be moved up and down on the front side of a shelf device. A positioning member capable of reciprocating between an avoidance position avoiding the moving region and a reference position in the left-right direction for positioning the workpiece in the left-right direction, is positioned at the reference position in conjunction with the lowering of the elevator; One end side in the left-right direction of the work is brought into contact with a contact surface provided in the positioning member and positioned, and the work in the positioned state is placed on the elevator.

  In the work placement method, the weight of the elevator acts on the positioning member when the positioning member is positioned at the reference position.

  In addition, when placing a plate-like workpiece on an elevator provided on the front side of the shelf device so as to be movable up and down, a positioning device for positioning one end side in the left-right direction of the workpiece at a reference position in the left-right direction. A positioning member capable of reciprocating between an avoiding position avoiding a region where the elevator moves up and down and the reference position, and moving the positioning member from the avoiding position to the reference position in conjunction with lowering of the elevator An operation interlocking mechanism for operating is provided.

  In the positioning device, the operation interlocking mechanism is constituted by a bell crank mechanism for rotating the positioning member between the avoidance position and the reference position.

  According to the present invention, the positioning member in the left-right direction is positioned to the reference position in the X-axis direction in conjunction with the lowering of the elevator in the shelf device. Therefore, by positioning one end side of the workpiece in the left-right direction on the positioning member, positioning to the reference position in the left-right direction on the elevator can be performed.

It is side surface explanatory drawing which shows the relationship between the positioning device which concerns on embodiment of this invention, and a shelf apparatus. It is explanatory drawing of the structure which positions a skid in the reference position of a Y-axis direction with respect to a pallet. It is operation | movement explanatory drawing which shows the relationship between operation | movement of a positioning device, and the vertical motion of the elevator which can move up and down. It is explanatory drawing which showed notionally and schematically the structure of the positioning device which concerns on 2nd Embodiment. It is the side view which showed the conventional shelf apparatus schematically. It is explanatory drawing which shows the conventional method at the time of mounting and positioning a skid on a pallet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a positioning device 21 according to an embodiment of the present invention. As shown schematically in FIG. 1 and FIG. 3A, the positioning device 1 according to the embodiment of the present invention has an operation region in which the elevator (lifter) 9 in the shelf device 1 moves up and down in the horizontal direction (X-axis direction). , In the avoidance position avoiding in the direction orthogonal to the paper surface in FIG. More specifically, one end side in the left-right direction of the workpiece W placed on the elevator 9 is arranged on the reference position side in the left-right direction so as to be positioned at the reference position in the left-right direction. The reference position in the left-right direction means, for example, a position serving as a reference for the position in the left-right direction on the elevator.

  As shown in FIG. 3, the positioning device 21 includes a base plate 23 installed on the floor. A bracket 25 is erected on the base plate 23, and a positioning member 29 is supported on the bracket 25 via a pivot 27 in the Y-axis direction so as to be rotatable in the X-axis direction. The positioning member 29 is constituted by a bell crank mechanism. That is, the positioning member 29 includes a pressed portion 31 that extends in the X-axis direction and the positioning member 29 that extends in a direction substantially orthogonal to the pressed portion 31 and upward.

  The pressed portion 31 is pressed downward when the elevator 9 is lowered, and is always moved upward by an elastic member 33 such as a spring elastically mounted between the base plate 23 and the pressed portion 31. Is being energized. The positioning member 29 is configured to rotate integrally with the pressed member 31. That is, the positioning member 29 and the pressed member 31 are configured to operate integrally through the bell crank mechanism. Therefore, the bell crank mechanism constitutes a kind of operation interlocking mechanism for interlocking the positioning member 29 and the pressed member 31.

  On the upper portion of the positioning member 29, a contact portion 35 is provided that has a contact surface 35 </ b> F that contacts one end in the left-right direction of the workpiece W on the pallet 5 placed on the elevator 9. The contact portion 35 includes an avoidance position 37A (a position shown in FIG. 3A) where the region in which the elevator 9 moves up and down is avoided in the X-axis direction, and one end side in the left-right direction of the workpiece W on the pallet 5. Can be reciprocated between a reference position 37B (position shown in FIG. 3 (B)) which contacts the reference position.

  In other words, the elevator 9 descends the pressed member 31 against the urging force of the elastic member 33, and stops the elevator 9 at a predetermined height position set in advance. Then, the contact surface 35F of the contact member 35 is positioned at the reference position in the left-right direction. The avoidance position is restricted by a stopper 37 provided in the bracket 25.

  As can be understood from the above description, when the elevator 9 is positioned above the pressed part 31 in the positioning device 21 and is in a non-contact state with respect to the pressed part 31, the positioning member 29 is provided. The contact portion 35 is located at the avoidance position 37A as shown in FIG. When the elevator 9 is lowered to a predetermined position and presses and lowers the pressed portion 31, the contact portion of the positioning member 29 is positioned at the reference position 37 </ b> B in conjunction with the downward movement of the pressed member 31.

  As described above, when the positioning member 29 is positioned at the reference position 37B, as described above, the Y-axis reference pin 15 is removed from the pallet 5, and the skid 13 is placed on the pallet 5 by a forklift. Then, one end in the left-right direction of the workpiece W is brought into contact with the contact surface 35F of the contact member 35 in a state of being positioned by moving the skid 13 to the reference position side in the left-right direction (X-axis direction). Position in the left-right direction. Thereafter, the Y-axis reference pin 15 is attached to the pallet 5. Then, the skid 13 is moved in the Y-axis direction and brought into contact with the Y-axis reference pin 15, whereby positioning is performed at a reference position in the Y-axis direction (front-rear direction). As shown in FIG. 3C, when the elevator 9 is subsequently raised, the contact member 35 moves to the avoidance position 37A.

  As described above, after the workpiece W is positioned at the reference position in the X-axis direction and the Y-axis direction, the fork of the forklift is extracted from the lower side of the skid 13.

  As can be understood from the above description, the pressed portion 31 is pressed downward by the elevator 9 (the weight of the elevator 9 acts), and the positioning member 29 is positioned. Accordingly, when the workpiece on the pallet 5 is moved in the left-right direction and abuts against the abutting portion 35 of the positioning member 29, the abutting portion 35 does not move, and the workpiece W on the pallet 5 does not move. Positioning to the reference position 37B in the left-right direction can be performed accurately. That is, the workpiece W can be quickly and easily positioned at the reference position in the X-axis direction (left-right direction).

  By the way, the present invention is not limited to the embodiment described above, and can be implemented in other forms by making appropriate changes. That is, the configuration of the operation interlocking mechanism that interlocks the operation of the elevator 9 and the operation of the positioning member 29 is not limited to the bell crank mechanism described above, and various configurations can be adopted.

  That is, the configuration of the operation interlocking mechanism can be a configuration as shown in FIG. 4, for example. In the description of the configuration shown in FIG. 4, components having the same functions as those described above are denoted by the same reference numerals, and redundant description is omitted.

  In the configuration shown in FIG. 4, a positioning member 43 corresponding to the positioning member 29 is provided on the base frame 41 so as to be movable in the left-right direction. In order to move the positioning member 43 in the left-right direction in FIG. 4, an endless chain 45 connected to the pressed member 31 that is movable up and down is connected to the positioning member 43 at a connecting portion 47. The chain 45 is hung on sprockets 49A and 49B positioned in the left-right direction of the connecting portion 47 and sprockets 49C and 49D positioned below the sprockets 49A and 49B. And it is connected with the said to-be-pressed part 31 between sprocket 49B and sprocket 49D.

  Therefore, when the pressed part 31 is lowered by the elevator 9, the positioning member 43 is moved rightward in FIG. 4 via the chain 45. When the elevator 9 is raised, the positioning member 43 is returned to the original position by the stored force of the elastic member 33. Therefore, also in the said structure, the positioning member 43 can reciprocate between an avoidance position and a reference position, and there can exist an effect similar to the said embodiment.

  Note that the operation interlocking mechanism is not limited to the configuration described above, and can have various configurations.

DESCRIPTION OF SYMBOLS 1 Shelf device 3 Shelf frame 5 Pallet 13 Skid 15 Y axis reference pin 21 Positioning device 27 Pivot 29 Positioning member 31 Pressed portion 33 Elastic portion 35 Contact portion 35F Contact surface 37A Avoidance position 37B Reference position

Claims (4)

  A work placement method for placing a plate-like work on an elevator provided on the front side of a shelf device so as to be movable up and down, wherein an avoidance position avoiding an area in which the elevator moves up and down, and positioning of the work in a horizontal direction A positioning member that can reciprocate between a reference position in the left and right direction is positioned to the reference position in conjunction with the lowering of the elevator, and one end in the left and right direction of the workpiece is brought into contact with the contact surface provided for the positioning member A workpiece placement method comprising: positioning a workpiece by contacting the sides, and placing the workpiece in the positioned state on the elevator.   The work placement method according to claim 1, wherein the weight of the elevator acts on the positioning member when the positioning member is positioned at a reference position.   A positioning device for positioning one end side in the left-right direction of a work at a reference position in the left-right direction when placing a plate-like work on an elevator provided on the front side of the shelf device so as to be movable up and down, A positioning member that can reciprocate between an avoidance position that avoids an area where the elevator moves up and down and the reference position is provided, and moves the positioning member from the avoidance position to the reference position in conjunction with the lowering of the elevator A positioning device comprising an operation interlocking mechanism for the purpose.   4. The positioning device according to claim 3, wherein the motion interlocking mechanism is constituted by a bell crank mechanism for rotating the positioning member between the avoidance position and the reference position. apparatus.

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