JPH06271061A - Work positioning device - Google Patents

Abstract

PURPOSE:To securely and easily carry out the positioning works having various shapes with a simple constitution. CONSTITUTION:A work positioning device has the first guide means 64 arranged in front in the carrying direction of a steel slat belt 62 so as to position a work W in the carrying direction, the second guide means 66 arranged on the side of this first guide means 64 so as to position the work W in the direction for crossing the carrying direction, a movable frame body 68 arranged on the side opposed to this second guide means 66 so as to be capable of approaching/ retreating freely to/from the second guide means 66 and the third guide means 72 installed in this movable frame body 68 so as to be capable of approaching/ retreating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work positioning device for positioning a press-formed work on a pallet or the like so that the work is automatically positioned at a predetermined position on a conveyor.

[0002]

2. Description of the Related Art For example, various devices are used to automatically load works such as panel parts carried out from a transfer press into a predetermined pallet. As this type of device, after the work that is intermittently transferred from the transfer press machine in a relatively short time is positioned at a predetermined position on the transfer conveyor, the work is automatically transferred to a pallet via a loading robot or the like. It is known to be configured for loading.

In this case, in order to position the work on the conveyor, the conveyor itself is inclined in a direction intersecting the conveying direction (Japanese Patent Laid-Open No. 56-17813).
(See Japanese Laid-Open Patent Publication No. 56-23115), which is provided with a pair of stoppers sandwiching the conveyor, and the stoppers are configured to be movable back and forth through an operating device (see Japanese Laid-Open Patent Publication No. 56-23115). .

[0004]

However, although the above-mentioned prior art can be applied to the case of positioning a work having the same shape, the same reference plane, etc., it is an outer plate member of an automobile body, for example. It has been pointed out that it is difficult to appropriately position workpieces having various outer shapes such as a fender and a bonnet at appropriate predetermined positions.

The present invention is to solve this kind of problem, and an object of the present invention is to provide a work positioning device capable of reliably and easily positioning works having various shapes with a simple structure. And

[0006]

In order to achieve the above-mentioned object, the present invention is a work positioning device for positioning a work conveyed by a conveyer on the conveyer. A first guide means provided in front of the carrying direction for positioning the work in the carrying direction; and a second guide means arranged to the side of the first guide means for positioning the work in a direction intersecting the carrying direction.
Guide means, a movable frame body provided on the side opposite to the second guide means, and movable back and forth with respect to the second guide means, and a third guide means attached to the movable frame body so as to be movable back and forth. , Are provided.

Further, it is preferable that the third guide means includes a plurality of guide members that can move back and forth in correspondence with works of different shapes.

[0008]

In the work positioning device according to the present invention described above,
The workpiece conveyed through the conveyor is engaged with the first guide means and positioned in the conveying direction, and the third guide means moves toward the second guide means to move the second and third guides. The work is positioned by means of the means in a direction intersecting the transport direction. As a result, the works are positioned in the carrying direction and the direction intersecting the carrying direction, and are sequentially loaded on a predetermined pallet or the like via a loading robot or the like. On the other hand, when a new work having a different shape from that of the work is conveyed, the movable frame body is displaced forward and backward and positioned corresponding to the shape of the new workpiece, and then the third guide means is displaced forward and backward. . Therefore, it becomes possible to easily and surely position workpieces having different shapes with a simple structure.

Further, if the third guide means is provided with a plurality of guide members that can move back and forth, a desired guide member can be selectively moved in accordance with the shape of the workpiece to be conveyed, so that there are many types of guide members. Different workpieces can be easily positioned.

[0010]

EXAMPLE A work positioning device according to the present invention,
An example is given in connection with an automatic transport system for carrying out this and is described below with reference to the accompanying drawings.

In FIG. 3, reference numeral 10 indicates an automatic transfer system incorporating the work positioning device according to this embodiment. The automatic transfer system 10 includes a pair of sorting positions F1 for accommodating a work W such as a panel discharged from the transfer press machine 12 in a predetermined pallet 14.
It is to be selectively transferred to the first loading positions P1 and P1a and the second loading positions P2 and P2a by allocating to the left and right by F2, and the arrow from the transfer press machine 12 via the two-row carry-out conveyors 16 and 16a. Arrows Y and Ya intersecting the workpiece W conveyed in the X direction in the arrow X direction.
Transporting mechanisms 18, 18a for sorting in the directions, vertical sorting conveyors 20, 20a for supplying the works W to the transporting mechanisms 18, 18a, the first loading positions P1, P1a and the second loading position P2 for the works W, P2a
First work positioning device 22, 22a and second work positioning device 2 according to the present embodiment
4, 24a.

The carry-out conveyor 16 and the sorting conveyor 20 have endless belts 28, 30 which run in a circulating manner in the direction of arrow X by a rotary drive source (not shown).
In addition, the sorting conveyor 20 is configured to be swingable with the end portion on the side of the carry-out conveyor 16 as a fulcrum.

As shown in FIG. 4, the carrying mechanism 18 has been carried by the lower conveyor 32 and the upper conveyor 34 for carrying the work W in the arrow X direction, and the lower conveyor 32 and the upper conveyor 34. Stoppers 36 and 38 for positioning and stopping the work W at predetermined positions on the lower conveyor 32 and the upper conveyor 34 are provided. The lower conveyor 32 includes a frame body 42 supported horizontally with respect to the support column 40, and a drive motor 44 is fixed to an end portion of the frame body 42. A pair of pulleys 46a and 46b are connected to the rotary shaft of the drive motor 44 via a drive transmission means such as a belt or a chain, and a steel slat belt 50 is connected via the pulleys 46a and 46b and pulleys 48a and 48b. It has a conveying direction in the direction of arrow X and is configured to be capable of traveling around.

The column 40 is provided with a pusher 52 located above the lower conveyor 32 and movable back and forth in the arrow Y direction. The pusher 52 is provided with a movable body 56 that is free to move along a guide rail 54 supported by the support column 40.
The pushing member 57 is supported by the moving body 56.

The upper conveyor 34 is the lower conveyor 3 described above.
The configuration is the same as that of No. 2, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted (see FIGS. 4 and 5).

As shown in FIG. 6, a transfer conveyor 58 is disposed near the end of the lower conveyor 32 and the end of the first work positioning device 22. This transfer conveyor 58
Is provided with an endless belt 60 that can be rotated around by a rotary drive source (not shown), and the endless belt 60 conveys the work W in the arrow Y direction.

The first work positioning device 22 and the second work positioning device 24 are arranged corresponding to the first loading position P1 and the second loading position P2, respectively, and since they have the same configuration, respectively The one-workpiece positioning device 22 will be described. The same components of the second work-positioning device 24 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIGS. 1 and 2, the first workpiece positioning device 22 is for positioning the workpiece W on the steel slat belt (transport conveyor) 62, and the transport direction of the steel slat belt 62. First guide means 64 provided at the front (in the direction of arrow Y) for positioning the work W in the carrying direction, and arranged on the side of the first guide means 64 so as to intersect the work W in the carrying direction. Second guide means 66 for positioning in the direction (arrow X direction), and a movable frame body 68 provided on the side opposite to the second guide means 66 and movable back and forth with respect to the second guide means 66. The movable frame 68 is provided with a third guide means 72 that is mounted so as to be movable back and forth.

The steel slat belt 62 has a base 74.
The steel slat belt 62 is fixed to one side portion 76 of the base 74 so that the steel slat belt 62 travels around. A bracket 82 constituting the first guide means 64 is fixed to a front end portion 80 of the base 74, a cylinder 84 is fixed to the bracket 82, and a guide member 88 is held by a rod 86 extending from the cylinder 84. To be done. The guide member 88 has a plate shape and is elongated in the arrow X direction. The second guide means 66 is fixed to the other side portion 90 of the base 74 and is fixed in the arrow Y direction.
2 is provided.

Proximity to the front end 80 of the base 74, arrow X
Guide rails 94a, 94b extending in the same direction and parallel to each other
Is provided, and between the guide rails 94a and 94b,
A ball screw 98 connected to the rotary drive source 96 extends in the direction of arrow X and is supported. One end 100 of the movable frame 68 is engaged with the guide rails 94a, 94b, and the one end 100 is provided with a nut member 102 screwed to the ball screw 98 (see FIG. 2). The movable frame 68 has a horizontal portion 104 that rises from the one end 100, and below the horizontal portion 104 forms a space into which the guide member 88 that constitutes the first guide means 64 can enter. The other end 106 is provided at the end of the horizontal portion 104, and the other end 1
06 extends downward and the guide roller 108 is provided at the lower part thereof.
Is supported by the guide roller 108.
It is placed on the guide plate 112 fixed to the rear side of the (see FIG. 1).

The third guide means 72 is provided in the horizontal portion 104 and is spaced apart by a predetermined distance from the first cylinder 114a.
To the fourth cylinder 114d, and the first cylinder 1
The first guide member 118a to the fourth guide member 118d are fixed to the tips of the rods 116a to 116d extending from the 14a to the fourth cylinder 114d in the arrow X direction.
The first guide member 118a to the fourth guide member 118d
Are set to have a width corresponding to a desired work W respectively, and are inserted between the plate body 120 fixed to the horizontal portion 104 and the horizontal portion 104 and guided in the arrow X direction.

The configuration on the unloading conveyor 16 side has been described above. However, the unloading conveyor 16a side is also configured in the same manner, and the same reference numerals are given to the same constituent elements and the detailed description thereof will be given. Omitted (see FIG. 3).

A loading robot 130 is provided at each of the first loading positions P1 and P1a and the second loading positions P2 and P2a, and the pallets 14 are placed on both sides of each loading robot 130. An empty pallet arrangement portion 132 is provided in the vicinity of the first work positioning device 22a so that the pallet 14 can be circulated and used.

Next, the operation of the automatic transfer system 10 thus constructed will be described with reference to the first work positioning devices 22 and 22a and the second work positioning devices 24 and 24a according to this embodiment.

As shown in FIG. 3, the work W sent from the transfer press machine 12 is transferred to the carry-out conveyor 16,
16a and is conveyed in the direction of the arrow X, and the inspector inspects the molding quality and the like. Then, if there is no abnormality, the work W is carried into the distribution conveyors 20 and 20a.

The works W fed from the carry-out conveyor 16 are distributed via the sorting conveyor 20 to the first loading position P1.
When the sheet is conveyed to, the endless belt 30 is circulated while the swinging leading end side of the sorting conveyor 20 is swung downward, as shown in FIG. Therefore, the work W sent from the carry-out conveyor 16 is placed on the endless belt 30 and conveyed to the lower conveyor 32.

In this lower conveyor 32, the drive motor 4
The steel slat belt 50 is running around via 4 and the work W fed from the sorting conveyor 20 is carried onto the steel slat belt 50.
Then, the work W is conveyed on the steel slat belt 50 in the arrow X direction, engages with the stopper member 36, and stops positioning.

Then, the moving main body 56 which constitutes the pusher 52 is moved in the direction of the arrow Y, and the work W is placed on the transfer conveyor 58 under the pressing action of the pushing member 57.
It is conveyed from the guide plate 112 to the steel slat belt 62 side via the transfer conveyor 58. At that time, since the steel slat belt 62 has a conveying direction in the direction of the arrow Y under the action of the rotary drive source 78 and travels around, the work W is conveyed on the steel slat belt 62 in the direction of the arrow Y. The leading end in the carrying direction comes into contact with the guide member 88 forming the first guide means 64, and the positioning in the carrying direction is performed.

Then, when the first guide member 118a corresponding to the work W is selected from the third guide means 72,
The first cylinder 114a is driven to extend the rod 116a toward the second guide means 66, and the first guide member 118a fixed to the tip of the rod 116a moves in the arrow X direction. Therefore, the work W is the first guide member 1
18a is moved in the direction of the arrow X under the pressing action of 18a,
Positioning in the arrow X direction is performed by the guide member 118a and the fixed guide member 92 that constitutes the second guide means 66. The upper horizontal portion of the first guide member 118a is inserted between the plate body 120 and the horizontal portion 104, and the first guide member 118a is smoothly guided in the arrow X direction.

As a result, the works W are positioned in the arrow Y direction and the arrow X direction (that is, the first loading position P1), held by the loading robot 130, and automatically loaded on the pallet 14. This pallet 14 has an empty pallet 14 after a predetermined number of works W are loaded.
Exchanged for.

On the other hand, when the works W are conveyed to the second loading position P2, the swinging tip side of the sorting conveyor 20 is swung upward, and the works W are sent from the sorting conveyor 20 to the upper conveyor 34. . After that, the work W is conveyed to the second work positioning device 24 via the pusher 52 provided on the upper conveyor 34, and is similarly positioned at the second loading position P2, and then is loaded onto the predetermined pallet 14 by the loading robot 130. Be loaded.

The work W sent to the unloading conveyor 16a is sorted downward or upward by the allocating conveyor 20a in the same manner as the unloading conveyor 16 and is then transported in the direction of the arrow Ya under the action of the pusher 52a. The first work positioning device 22a or the second work positioning device 24a positions the first work position P1a or the second work position P2a. Then, the work W is loaded into the predetermined pallet 14 by the loading robot 130.
Be loaded into.

By the way, in comparison with the work W described above, the arrow X
The workpiece W1 having a small dimension in the line direction is placed at the first loading position P1.
When it is housed in the pallet 14 (see FIG. 7), the movable frame 68 that constitutes the first work positioning device 22 is preliminarily positioned in the direction of the arrow X corresponding to the work W1. That is, under the action of the rotary drive source 96, the ball screw 9
When 8 is rotated, the movable frame body 68 moves in the arrow X direction via the nut member 102 screwed to the ball screw 98, the guide rails 94a and 94b, and the guide roller 108 rolling on the guide plate 112. , The movable frame body 6
8 is stopped at the desired position.

Next, when the work W1 is conveyed to the steel slat belt 62 in the same manner as described above, the work W1 is transferred.
Is conveyed in the direction of the arrow Y by the circular traveling of the steel slat belt 62, and is brought into contact with the guide member 88 of the first guide means 64 to be positioned. Therefore, for example, the third
And the third cylinder under the action of the fourth cylinder 114c, 114d.
And the fourth guide members 118c and 118d are moved in the arrow X direction, and the third and fourth guide members 118c and 118d are moved.
The work W1 is positioned in the arrow X direction by 118d and the fixed guide member 92 (see FIG. 7).

As described above, in this embodiment, the movable frame body 68 which is movable back and forth in the arrow X direction is disposed on the base 74 via the rotary drive source 96, and the movable frame body 68 has an arrow mark. A third guide means 72 is provided that can move back and forth in the X direction. Therefore, in the case of the work W having a relatively large shape, the movable frame body 68 is separated from the second guide means 66, and the work W is positioned via the first guide member 118a under the action of the first cylinder 114a. In the case of the small work W1, the movable frame body 68 is moved in the direction of the arrow X in advance, and then the third and fourth cylinders 114c and 114c.
Under the action of 4d, the third and fourth guide members 118c, 1
The workpiece W1 can be positioned at 18d. Therefore, it is possible to easily and reliably perform positioning work for various different works W and W1 with a simple configuration of providing the movable frame 68.

Furthermore, the third guide means 72 is provided with a plurality of guide members, that is, the first guide member 118a to the fourth guide member 118d, and the first guide member 118a to the fourth guide member 118d are respectively the first guide member 118a to the fourth guide member 118d. The cylinder 114a to the fourth cylinder 114d are configured to be movable back and forth. Thereby, the positioning work of the work W can be performed with higher accuracy by using, for example, the first guide member 118a and the second guide member 118b at the same time for the positioning work of the single work W. Moreover, by moving the movable frame 68 and selectively using the first guide member 118a to the fourth guide member 118d, it is possible to quickly and efficiently position the workpieces W, W1 and the like having various shapes. There is an advantage that it becomes possible to do.

Further, in the second guide means 64, the guide member 88 is constructed so as to be movable back and forth in the arrow Y direction via the cylinder 84. Therefore, by adjusting the position of the guide member 88, various works W, W1 and the like can be reliably positioned at desired positions in the arrow Y direction.

[0038]

According to the work positioning apparatus of the present invention, the following effects can be obtained.

The workpiece conveyed through the conveyor is engaged with the first guide means and positioned in the conveying direction, and the third guide means moves to the second guide means side, and the workpiece is It is positioned in a direction intersecting with the transport direction via the second and third guide means. On the other hand, when a new work having a different shape from that of the work is conveyed, the movable frame body is displaced forward and backward and positioned corresponding to the shape of the new workpiece, and then the third guide means is displaced forward and backward. . Therefore, only by positioning the movable frame according to the shape of the work, it becomes possible to easily and reliably position various works having different shapes with a simple configuration.

If the third guide means is provided with a plurality of guide members that can be moved back and forth, a desired guide member can be selectively moved in accordance with the shape of the workpiece to be conveyed, so that particularly various types of guide members can be used. Workpieces having different shapes can be efficiently positioned.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of a work positioning device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the work positioning device.

FIG. 3 is a perspective explanatory view of an automatic transport system incorporating the work positioning device.

FIG. 4 is a side view of a distribution conveyor, a lower conveyor, and an upper conveyor that constitute the automatic transport system.

FIG. 5 is a schematic plan view of the distribution conveyor, the upper conveyor, and the work positioning device.

FIG. 6 is a schematic explanatory view of conveyors arranged in the arrow Y and Ya directions of the automatic transport system.

FIG. 7 is an explanatory plan view when positioning another work by the work positioning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Automatic transfer system 12 ... Transfer press machine 14 ... Pallet 16, 16a ... Unloading conveyor 18, 18a ... Transfer mechanism 20, 20a ... Sorting conveyor 22, 22a, 24, 24a ... Work positioning device 32, 32a ... Lower conveyor 34 , 34a ... Upper conveyor 62 ... Steel slat belts 64, 66 ... Guide means 68 ... Movable frame 72 ... Guide means 74 ... Base 78 ... Rotational drive source 88 ... Guide member 92 ... Fixed guide member 96 ... Rotational drive source 104 ... Horizontal part 114a-114d ... Cylinder 118a-118d ... Guide member 130 ... Loading robot

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Oba 1-10-1 Shin-Sayama, Sayama-shi, Saitama Honda Engineering Co., Ltd. (72) Satoshi Kambayashi 1-10-1 Shin-sayama, Sayama-shi, Saitama Prefecture Hondaae Inside Engineering Co., Ltd. (72) Inventor Satoshi Nagamatsu 1-10-1 Shin-Sayama, Sayama City, Saitama Prefecture Inside Honda Engineering Co., Ltd.

Claims (2)

[Claims] 1. A work positioning device for positioning a work carried by a carry conveyor on the carry conveyor, the work positioning device being provided in front of the carry conveyor in the carrying direction, for positioning the work in the carry direction. A first guide means, a second guide means disposed on the side of the first guide means for positioning the work in a direction intersecting the conveying direction, and a second guide means provided on the side opposite to the second guide means. , The second
A work positioning device comprising: a movable frame body that can move back and forth with respect to the guide means; and a third guide means that is mounted on the movable frame body so as to move back and forth. 2. The work positioning device according to claim 1, wherein the third guide means includes a plurality of guide members that can move back and forth corresponding to works of different shapes.