JPS637482Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece reversing device used for reversing a workpiece together with a pallet in an unmanned and automated machining factory.

Conventionally, in unmanned and automated machining factories, the workpieces machined by machine tools are reversed to remove chips remaining on the workpieces or the pallets on which the workpieces are mounted, or during setup changes. A workpiece reversing device is used when reversing a workpiece for various reasons. In this workpiece reversing device, a drum with an open outer circumference is rotatably mounted on a frame, a pallet support is fixed inside the drum, and a workpiece attached to the pallet is placed on the pallet support. The structure is such that the workpiece is turned over in a vertical plane by rotating the entire drum. However, this conventional reversing device has the disadvantage that its rotation mechanism is complicated and large.

The present invention consists of a guide section in which a pair of left and right bearings are provided horizontally movably in parallel vertical planes, and a pedestal that is provided with guide means such as racks and chains in parallel and horizontally with each other, and left and right support plates. A pallet support part has a pair of left and right rotating shafts attached to the tips of the pallet with their axial directions aligned with each other, and the rotating shafts are horizontally orthogonal to the length direction of the guide part, and the pallet support part is rotated by the bearings of the guide part. The shaft is pivotally supported, and a guide ring such as a pinion or sprocket wheel provided on at least one of the left and right rotating shafts is engaged with the guide means so as to be rotatable in a vertical plane, and between the mount and the bearing. By providing an operating cylinder that moves the bearing along the guide part, and by attaching the pallet that supports the workpiece between the left and right rotating shafts to the upper surface of the pallet support part in a horizontal state, the above-mentioned conventional problems can be solved. It is an object of the present invention to provide a workpiece reversing device having an extremely simple rotation mechanism.

Hereinafter, the present invention will be explained based on the drawings.

Figures 1 and 2 show an embodiment of the present invention.
In the figure, the pallet is mounted in a direction perpendicular to the plane of the paper, and is transported by a transport device 3 such as an automatic guided vehicle. The reversing device of the present invention includes a pallet support section 4 that fixedly supports the pallet 1;
An actuating cylinder 5 that moves the pallet support part 4 in the direction of carrying the pallet 1 into and out of the pallet support part 4, a guide ring 6 provided on the pallet support part 4, and a guide ring 6 that guides the pallet support part 4.
The main body is a guide means 7 for rotating the motor in a vertical plane along the direction of movement thereof.

The pallet support section 4 has the same basic structure as the conventional one, and is equipped with a pallet loading/unloading mechanism for loading and unloading the pallet 1 into and out of the pallet support section 4 near it, and a clamp mechanism for fixing the pallet 1. are doing. Support plates 8 are provided on both side edges of the pallet support portion 4, and a shaft 10 with a bearing 9 at the end is provided on the outer surface of each support plate 8.
are attached to the side surface of the support plate 8 at right angles and coaxially with each other. Each of the bearings 9 is fitted into an elongated hole 13 formed in a guide section 12 on the pedestal 11 along the direction in which the pallet 1 is carried in and out.

On the other hand, the operating cylinder 5 has one end connected to the frame 11.
The other end is attached to the bearing 9, and the bearing 9 is moved along the elongated hole 13 of the guide portion 12 by the operating cylinder 5. Furthermore, the guide wheels 6 are pinions attached to each shaft 10 of the pallet support section 4. Further, the guide means 7 is easily fixed on the pedestal 11 so as to be parallel to the elongated hole 13 of the guide part 12, and when the guide means 7 and the guide ring 6 are combined, the pallet support part 4 When moving in the loading/unloading direction of the pallet 1, it is rotated in a vertical plane along the same direction.

Note that the operating cylinder 5 may be of a hydraulic type, a pneumatic type, or an electric screw type.

Next, the operation of the present invention will be explained.

In the reversing device of the present invention, when the workpiece 2 processed by the machining center is placed on the pallet 1 and transported by the conveying device 3, a pallet loading/unloading mechanism (not shown) operates to support the pallet 1. The pallet 1 is pulled into the pallet support section 4, and the clamp mechanism is activated to fix the pallet 1 to the pallet support section 4.
Then, when the operating cylinder 5 is extended and moved to move the pallet support part 4 in the direction of arrow A in the figure,
The guide means 7 rotates the guide wheel 6 to rotate the pallet support 4 in the direction of arrow B. At this time, the chips remaining on the workpiece 2 and the pallet 1 fall downward and are carried to a predetermined location by a chip conveyor or the like and removed. When the removal of chips is completed, the operating cylinder 5 is retracted to move the pallet support part 4 in the direction of arrow C, while rotating it in the direction of D through the engagement of the guide means 7 and the guide ring 6, returning it to its original state. return. Then, move on to the next work process.

By the way, in the above embodiment, the guide wheel 6
The linear motion of the shaft 10 was converted into rotational motion by using a pinion as the guide wheel 6 and a rack as the guide means 7. However, for example, a sprocket wheel was used as the guide wheel 6, and a chain was used as the guide means 7. It can also be configured to perform similar operations.

As described above, in the workpiece reversing device of the present invention, the pallet support part is rotationally driven by a combination of the actuating cylinder, the guide wheel, and the guide means, so the structure is extremely simple and manufacturing is easy. be. Furthermore, since the pallet support section is rotated in a vertical plane along the pallet loading/unloading direction while being moved in the loading/unloading direction of the pallet, interference of the reversing device main body with the conveying device etc. can be avoided.
Furthermore, since the rotation and support mechanisms can be configured in a concentrated manner, there are advantages in that the number of component parts is relatively small and maintainability is good. Furthermore,
The rotating shafts that rotatably support the pallet support section are provided in left and right halves with their axial directions aligned with each other, and the pallet is structured to support the workpiece between the pair of left and right rotating shafts. Because there are
It is easy to balance the pallet support, the pallet, and the workpiece, and the workpiece can be turned over easily, smoothly, and accurately with little force.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, in which FIG. 1 is a partially cutaway schematic front view, and FIG. 2 is a schematic view taken along the - arrow in FIG. 1. DESCRIPTION OF SYMBOLS 1... Pallet, 2... Workpiece, 4... Pallet support part, 5... Operating cylinder, 6... Guide wheel (pinion), 7... Guide means (rack).

Claims (1)

[Scope of utility model registration request] A guide section 12 in which a pair of left and right bearings 9, 9 are horizontally movable in parallel vertical planes, and a guide means 7 such as a rack or chain are mounted on a pedestal 11 that is parallel and horizontal to each other. The pallet support part 4 has a pair of left and right rotating shafts 10, 10 attached to the tips of support plates 8, 8 with their axial directions aligned with each other.
The rotating shafts 10, 10 are horizontally perpendicular to the length direction of the guide section 12, and the rotating shafts 10, 10 are pivotally supported on the bearings 9, 9 of the guide section 12, and the left and right rotating shafts are mounted on the guide means 7. A guide ring 6 such as a pinion or a sprocket wheel provided on at least one of the bearings 10 and 10 is engaged with the bearing so as to be rotatable in a vertical plane, and between the pedestal 11 and the bearings 9, 9,
An operating cylinder 5 is provided for moving the bearings 9, 9 along the guide section 12, and a pallet 1 supporting the workpiece 2 between the left and right rotating shafts 10, 10 is placed on the upper surface of the pallet support section 4 in a horizontal state. A workpiece reversing device characterized in that it is attached.