JPH0620701B2 - Rollover device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used for a rollover device for converting the posture of a workpiece by providing it in the middle of a line of a transfer device, and particularly for a transfer device such as a lift and carry system. The present invention relates to a rollover device that supports a workpiece and rotates the workpiece around an axis parallel to a transfer bar that moves in the longitudinal direction to change the posture.

[Prior art]

In this type of rollover device, first, the workpiece on the transfer bar is grasped and lifted, and in that state, the workpiece is rotated at a predetermined angle, and then the workpiece is lowered on the transfer bar to change the posture of the workpiece. Converting.

[Problems to be solved by the invention]

However, in such a rollover device, there is a problem that the device as a whole becomes complicated and the manufacturing cost increases because it requires a device for moving the gripped workpiece up and down and a device for rotating the workpiece. The present invention is intended to solve such a problem by providing a rotating body which receives a workpiece on the feeding path and changes its posture, and to provide a roll-over device which operates reliably and has a simple structure. is there.

[Means for solving problems]

To this end, the roll-over device according to the present invention changes the posture of the workpiece W supplied to the transfer device 70 having the transfer bar 71 that lifts and supports the workpiece W and moves in the longitudinal direction, as shown in the accompanying drawings. In the rollover device, a notch in which one side in the radial direction is opened so that the transfer bar 71 can be swiveled around an axis O parallel to the longitudinal direction of the transfer bar 71 and can pass through the transfer bar in the first phase. Revolving body 2 having 24
0, a guide rail 25 provided on the rotating body for guiding and supporting the workpiece W movably in the longitudinal direction, and the workpiece W in the guide rail 25 at the second phase of the rotating body 20. Inserting device 40 for inserting, and the rotating body 2
A drive unit 50 for turning 0 around the axis O to position the first and second phases, and an axis O of the rotating body 20.
A pair of holding levers 61 supported by the rotating body 20 so as to be swingable about an axis parallel to the rotating body 20 and tip portions 61a of the pair of holding levers interposed between the holding levers and the rotating body 20. A spring 65 that engages the work W guided and supported by the guide rail 25 and biases the holding lever in one direction toward a position that prevents movement of the work.
When the rotating body 20 provided on the machine frame 10 is brought into contact with a portion that moves together with the holding lever 61 when the rotating body 20 is positioned in the second phase, the holding lever is swung against the spring 65. A stopper 68 for retracting the tip portion 61a to a position where it does not engage with the workpiece W is provided.

[Action]

The workpiece W conveyed by the transfer device or the like from the previous step is first positioned in the guide rail 25 of the rotating body 20 in which the tip end 61a of the holding lever 61 is retracted by being positioned in the second phase by the inserting device 40. , Transfer bar 7
1 is inserted from the direction opposite to the moving direction. Next, when the driving device 50 is actuated and the turning body 20 starts to turn, the portion that moves together with the holding lever 61 and the stopper 68.
Is released, the tip portion 61a of the holding lever 61, which is urged by the spring 65, engages with the workpiece W and blocks its longitudinal movement. In this state, the rotating body 20
Continues turning and is positioned in the first phase to change the attitude of the workpiece W. After the rotating body 20 is positioned in the first phase, the transfer bar 71 lifts and supports the workpiece W to a position where it does not engage with the holding lever 61, and the notch 2
The workpiece W is moved through the inside of the guide rail 4 in the longitudinal direction to be pulled out from the inside of the guide rail 25 and sent out to a predetermined position.

〔The invention's effect〕

As described above, according to the present invention, the workpiece is inserted into the rotating body, swiveled to change its posture, and then supported by the transfer bar and extracted, so that the rotating body that changes the posture of the workpiece. Need only be swiveled, thus simplifying the rollover device as a whole and reducing manufacturing costs.

Moreover, since the turning body is swung while the movement of the workpiece in the longitudinal direction is blocked, after the positioning in the first phase, the workpiece is securely placed on the predetermined position of the transfer bar and pulled out from the guide rail. , It can be sent to a predetermined position, and the engagement and disengagement of the tip of the holding lever with respect to the workpiece is performed by using the turning of the rotating body, so a special drive source is required for the operation of the holding lever. Therefore, the manufacturing cost does not increase.

〔Example〕

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, FIG. 3, FIG. 6, and FIG. 7, the rotating body 20 is supported by the machine frame 10 so as to be rotatable about the axis O and is driven to rotate by the drive device 50. Thing W
2 is inserted into the rotary body 20 from the right side (left side in FIG. 8) in FIG. 2 by the insertion device 40, and the posture is changed by the turning of the rotary body 20.
Is extracted in the direction parallel to the axis O.

As shown in FIG. 1 to FIG. 3 and FIG. 6 to FIG.
Two support shafts 30 are supported between each pair of the first support plates 11 and 11a and the second support plates 12 and 12a, which are erected on the ground. A guide roller 31 and a support roller 32 that support the moving body 20 are pivotally supported.

As shown in FIGS. 1 to 4 and FIGS. 6 to 8, the rotating body 20 includes circular first and second side plates 21 and 22 having the same diameter, and three connecting members 21 and 22 for welding the two. It is formed integrally with the connecting member 23, and each side plate 21, 22 is provided with deep cuts 24, 24a whose one side in the radial direction is opened. The outer peripheries of the side plates 21 and 22 are supported by the guide roller 31 and the support roller 32, respectively, whereby the rotating body 20 can rotate about an axis O parallel to the longitudinal direction of the transfer bar 71 of the transfer device 70.
In addition, the movement in the axial direction is restrained and supported.
The rotating body 20 is provided with a guide rail 25 that guides and supports the workpiece W so as to be movable in a direction parallel to the axis O. First
As shown in FIG. 4 to FIG. 6 and FIG. 6 to FIG. 8, both ends of the guide rail 25 are notches 2 of the side plates 21 and 22, respectively.
4, 24a 3 pairs of rail members fixed to the inner edge 26, 2
6a, 27, 27a, 28, 28a, notch 2
4, a pair of rail members 26 located on the open side of 24a,
26a has an L-shaped cross section.

The rotating body 20 is driven to rotate by the drive device 50, and
Positioning is performed in the first phase shown in FIGS. 2, 2, 6 and 8 and the second phase shown in FIGS. 3, 4, and 7. As shown in FIGS. 1 and 2, the drive device 50 includes a drive motor 51 supported on the machine casing 10, a drive sprocket 52, an idle sprocket 53, and a part fixed to the first side plate 21 of the rotating body 20. The driven ring 55 notched and the drive chain 54 stretched between the sprockets 52, 53 and the driven ring 55 are the main members.
A part of the drive chain 54 is fixed to a part of the driven ring 55 by a bracket 56, and the drive motor 51 includes a friction clutch 52a, a drive sprocket 52, and a drive chain 5.
The rotary body 20 is driven to rotate via the 4 and the driven ring 56. When the driving device 50 drives the rotating body 20 toward the first phase shown in FIG. 1, the tip end of the adjusting screw 35 provided on the stopper 34 fixed to the first side plate 21 is the first support plate 11. The rotary member 20 is positioned by the contact member 33 fixed to the first phase and stopped at the first phase, and at the same time, the micro switch 36 is operated by the cutout portion of the driven ring 55 to stop the energization of the drive motor 51. The overrun of the drive motor 51 due to is absorbed by the friction clutch 52a. In the first phase, the transfer bar 71 and the supporting jig 71a forming a part of the transfer bar 71 are in the first phase.
The side plate 21 is movable in the notch 24 in the longitudinal direction, and the supporting jig 71a is provided with rail members 26, 26a,
It is movable in the longitudinal direction between 27, 27a, 28 and 28a. Depending on the shape of the transfer bar 71 including the support jig 71a, it is not always necessary to open one side of the notch 24a of the second side plate 22 in the radial direction. Revolving body 2
When 0 is driven toward the second phase shown in FIG. 3, similarly, the tip end of the adjusting screw 35a provided on the stopper 34a abuts the abutting member 33a so that the rotating body 20 moves in the second phase. The positioning is stopped, the energization of the drive motor 51 is stopped by the micro switch 36a, and the overrun is absorbed by the friction clutch 52a.

As shown in FIGS. 2 and 4, the second supports 12, 12a
A pair of third support plates 14 and 14a are erected on the machine frame 10 on the right side of each of the second support plates 12 and 12a and the third support plate 1.
The insides of the upper ends of 4, 14a are welded and connected by connecting members 47, 47 whose front halves are partially in an inverted L shape. Also, each of the second and third support plates 12, 12a and 14, 14a
In between, a pair of pilot bars 46, 46 and auxiliary bars 46a, 46a for guiding and supporting a slide body 43 of the insertion device 40 described later are supported parallel to the axis O of the rotating body 20.

In the second phase, the notch 24a and the guide rail 2
It is assumed that the position 5 receives the workpiece W inserted by the insertion device 40. As shown in FIGS. 2, 4, 5, and 8, the insertion device 40 includes a cylinder device 41 and a pivot shaft 42 which are pivotally supported on the machine frame 10 by brackets 49.
a, a pair of swing arms 42 pivotally supported by the machine frame 10 and a pair of pilot bars 4 parallel to the axis O of the rotating body 20.
6, 46 and the pair of sliding bodies 43, 43 guided and supported by the auxiliary bars 46a, 46a, and the claws 44a at the tips,
The insertion arms 44, 44 having 44a are the main constituent members. When the cylinder device 41 operates in the contracting direction, the swing arm 42 rotates around the pivot 42a, and the sliding body 43 moves.
The sliding body 43, the insertion arm 4 and the engagement roller 45 pivotally supported by the slide arm 43 and the guide groove 45a provided in the swing arm 42.
4 and the claw 44a move leftward in FIGS. 2 and 4 (rightward in FIG. 8). The work W placed at the position A in FIG. 4 is pushed leftward by the transfer device (not shown) or the like on the sending side by the movement of the pair of claws 44a, 44a, and the connecting member 47 is connected. , 47 on the second side plate 22 of the rotating body 20 positioned in the second phase by being guided by a pair of guide members 48, 48a fixed in the guide rail 25. Is inserted. When the workpiece W is inserted up to the position B in FIG. 4, the cylinder device 41 operates in the extension direction to move the slide body 4
3, the insertion arm 44 and the claw 44a are returned to the states shown in FIGS. 2, 4, and 8. The transfer device on the sending side may be a transfer device integrated with or separate from the transfer device 70 on the sending side, or may be a device for supplying the workpiece W.

The rotating body 20 has a holding device 6 for holding the workpiece W at the position B.
0 is provided. As shown in FIGS. 1 to 3 and 6 to 8, the holding device 60 includes a holding lever 61 and an operating lever 62 pivotally supported by the side plates 21 and 22 by pivot shafts 63 and 63a. Is the main component. Both levers 61 and 62 are engaged with each other by an engagement pin 61b and an engagement groove, and in the first phase shown in FIGS. 1, 2, 6, and 8, the holding lever 61 is engaged. Is urged by a spring 65 interposed between a bracket 64 fixed to the connecting member 23 and abutting against an adjusting screw 67 provided on a bracket 66 fixed to another connecting member 23 to be positioned and held. The tip portions 61a and 61a of the lever 61 engage with the workpiece W at the position B to prevent the workpiece W supported in the guide rail 25 from moving in the axial direction. In the second phase, as shown in FIGS. 3 and 7, the contact portion 62a of the operating lever 62 contacts the stopper screw 68 provided on the column 13 standing upright on the machine frame 10, and the engagement pin 61.
the holding lever 61 through the spring 65
The tip end portions 61a, 61a are retracted to a position where they do not engage with the workpiece W so that the workpiece W can be inserted into the guide rail 25 by the insertion device 40.

Next, the overall operation of the rollover device according to this embodiment will be described.

First, the rotating body 20 is swiveled by the driving device 50 to be positioned in the second phase shown in FIGS. 3 and 7, and the contact portion 62a of the operating lever 62 is contacted with the stopper screw 68 provided on the column 13. The tip portions 61a, 6 of the holding lever 61 are brought into contact with each other.
Move back 1a. In this state, the insertion device 4
0 is operated, and the work W placed at the position A in FIG. 2 and FIG. 4 is pushed leftward (rightward in FIG. 8) by a transfer device (not shown) on the feeding side and rotated. Moving body 20
After being inserted up to the position B in the guide rail 25 provided at, the insertion device 40 is returned to the state shown in FIGS. 2, 4, and 8. Next, the rotating body 20 is rotationally driven by the drive device 50 to position it in the first phase shown in FIGS. 1 and 6,
The posture of the workpiece W is changed. When the rotating body 20 pivots slightly from the second phase, the contact portion 62a of the operating lever 62 is disengaged from the stopper screw 68, so that the holding lever 61 is swung by the spring 65, as shown in FIG. 1 and FIG. As shown in FIG.
1a and 61a are engaged with the workpiece W at the position B and the axis O
The movement of the workpiece W in the directional direction is prevented, and the downward movement of the workpiece W due to the overlapping is prevented by the inward projections of the rail members 26, 26a. With the movement of the workpiece W thus blocked, the rotating body 20 is rotated to the first phase.

After the rotating body 20 is positioned in the first phase, as shown in FIG.
As shown in FIG. 2, FIG. 6 and FIG. 8, the transfer bar 71, which was at the lower position X, rises, enters between the notch 24 and the guide rail 25, moves to the upper position Y, and moves to the position B. The workpiece W held by is supported by the support jig 71a and lifted to the position C. Workpiece W at position C
Since the lower end of the transfer lever 71 is located above the tips 61a, 61a of the holding lever 61, if the transfer bar 71 at the upper position Y is moved to the left in FIG. The W is supported by the support jig 71a, is extracted from the rotating body 20 through the notch 24, and is sent to the next processing station or the like. Then transfer bar 71
Is returned to the position X through the notch 24, the drive device 5
When 0 operates to return the rotating body 20 to the second phase, one cycle of operation is completed. The rollover device of this embodiment repeats the same cycle after a predetermined time, inserts the workpiece W placed at the position A into the rotary body 20 to change the posture, and the transfer device 70 changes the posture. Workpiece W
To the next processing station.

As described above, in the rollover device of this embodiment,
Since the rotating body 20 for converting the posture of the workpiece W only needs to rotate and does not require vertical movement, the entire structure is simplified and the manufacturing cost can be reduced.

Moreover, since the turning body 20 is turned while the movement of the work W in the longitudinal direction is blocked, the work W during the turning is rotated.
Position of the transfer bar 7 is not deviated, and therefore the workpiece W positioned in the first phase and having its posture changed is transferred.
It can be reliably placed at a predetermined position of 1 and sent to the next processing station. In addition, a holding lever 61 for the workpiece W
The engagement and disengagement of the distal end portion 61a of the lever is performed by contacting the contact portion 62a of the actuating lever 62 and the stopper screw 68 with the turning of the rotating body 20.
Since it is carried out by contacting and disengaging, the driving source does not require a special drive source, and therefore the manufacturing cost does not increase.
The conversion angle of the posture of the workpiece by the rotating body is not limited to 90 degrees as in the embodiment, and the posture can be changed at any angle.

[Brief description of drawings]

The drawings show one embodiment of the roll-over device according to the present invention. FIG. 1 is a front view seen from the sending side in the first phase, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. III-III sectional view of FIG. 2 in the second phase, FIG. 4 is a IV-IV sectional view of FIG. 2 in the same second phase, and FIG.
FIG. 6 is a sectional view taken along line VV in FIG. 6, FIG. 6 is a sectional view taken along line VI-VI in FIG. 2, and FIG. 7 is a sectional view similar to FIG.
The drawing is a sectional view taken along the line VIII-VIII in FIG. Explanation of reference numerals 10 ... Machine frame, 20 ... Rotating body, 24 ... Notch, 25
...... Guide rail, 40 …… Insertion device, 50 …… Drive device, 61 …… Holding lever, 61 a …… Tip part, 65 ……
Spring, 68 ... Stopper (stopper screw), 70
...... Transfer device, 71 …… Transfer bar, O
…… Axis, W …… Workpiece.

Claims (1)

[Claims] 1. A rollover device for converting a posture of a workpiece to be supplied to a transfer device having a transfer bar which lifts and supports the workpiece and moves in the longitudinal direction, around a shaft line parallel to the longitudinal direction of the transfer bar. A rotating body having a notch which is rotatably supported by a machine frame and which allows one side to pass through the transfer bar in a first phase in the radial direction, and a workpiece provided on the rotating body in the longitudinal direction. A guide rail that movably guides and supports, an insertion device that inserts the workpiece into the guide rail at a second phase of the rotating body, and the rotating body is pivoted about the axis to rotate the first and the first rails. A drive device for positioning in two phases, a pair of holding levers supported by the rotating body so as to be swingable around an axis parallel to the axis of the rotating body, and the holding lever. And the rotating body, the front ends of the pair of holding levers are engaged with the workpiece guided and supported by the guide rails, and are held toward a position that prevents movement of the workpiece. A spring for urging the lever in one direction and a portion of the machine frame that moves together with the holding lever when the rotating body is positioned in the second phase abut the holding lever against the spring. A rollover device comprising: a stopper that is swung to retreat the tip end portion to a position where it does not engage with the workpiece.