JPS6221386Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reversible internal diameter phasing device that maintains the position of a workpiece such as an internal spline constant when the loader arm is reversed 180 degrees from the chute side to the machine side.

In the conventional internal spline positioning device, the workpiece in the chute is aligned when the positioning claw moves forward and the lifter rises, and then the holder goes to receive the workpiece and moves it to the jig spline collector on the machine side. It is designed to be inserted into the tube. By the way, in the above-mentioned conventional device, when the workpiece is brought to a predetermined position by the chute, the jig moves forward, and when the splines of the workpiece and the splines of the holder do not match, the holder moves backward, and the jig moves forward by 2° to 3°. It rotates and moves forward again, and if it still doesn't match, it repeats the operation several more times until it matches, so it takes a long time to match the phase, and
The structure of the device is also becoming more complex.

In this invention, when the loader arm is on the chute side, the phasing claw faces downward, but while the arm is inverted, the center of gravity of the phasing claw and the workpiece shift in turn, causing the phasing claw to rotate 180 degrees. When the phasing claw faces upward and aligns with the indentation of the inner diameter of the workpiece, the workpiece can be centered, ensuring reliable phasing and having a simple structure. It is an object of the present invention to provide an inner diameter phasing device.

For this reason, the configuration of the present invention includes a loader arm that is reversed by a high rotor from a start position to a reverse end position that is 180 degrees different from the start position, and a phasing claw attached to a holder at the tip of this arm. , characterized in that it includes a pushing cylinder provided near the start position and a closing cylinder provided at the reversal end position, and the pawl is oriented downward at the start position, and At the end of reversal position, the workpiece is positioned upward by aligning with the indentation of the inner diameter of the workpiece.

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

In FIG. 1, 1 is a workpiece having a spline on its inner diameter, and is fed along a chute 8.
A phasing claw 2 is attached to the holder 3 so as to be located at the tip of the loader arm 4. Then, the arm 4 is reversed by the high rotor 5 from the horizontal start position to the reversal end position, which is 180 degrees different from the horizontal start position. Further, the claw 2 is oriented downward at the start position of the arm 4, and
At the reversal end position, the workpiece 1 is necessarily positioned upward and coincides with the concave portion of the inner diameter of the workpiece 1. Reference numeral 6 denotes a charging cylinder, which is installed near the reversal end position of the arm 4 and inserts the positioned workpiece 1' into a collector chuck (not shown) on the machine side. Reference numeral 7 denotes a pushing cylinder, which is provided near the start position of the arm 4 and is configured to push the workpiece 1 in the chute 8 to the position of the phase alignment claw 2' at the start position of the arm 4. There is.

In the reversible inner diameter phasing device configured as shown in FIG. The convex portion and the recessed inner diameter portion of the workpiece 1 are aligned, and the workpiece is inserted into a collector chuck on the machine side (not shown).

In other words, the relationship between the workpiece 1 and the phasing claw 2 is as follows:
As shown in Fig. 2, when the loader arm 4 starts, the workpiece 1a and the claw 2a are in the state, when the arm 4 comes up, the workpiece 1b and the claw 2b are in the state, and when the arm 4 finishes reversing, the workpiece 1c and nail 2c
The convex portion of the claw 2c and the recessed inner diameter portion of the workpiece 1c coincide with each other.

The action of the loader is to push the workpiece 1 in the chute 8 to the claw 2' by the pushing cylinder 7, as shown in FIG. Next, the loader arm 4 is reversed by the high rotor 5 and moved to the position of the claw 2. At this time, the claw 2 attached to the holder 3 faces directly upward, and the concave portion of the inner diameter of the workpiece 1 and the convex portion of the claw 2 match, completing positioning. Then, the workpiece 1 is moved to a position 1' by the charging cylinder 6 and inserted into a collection chuck on the machine side (not shown).

As described above, according to the present invention, when the loader arm is at the start position, the phasing claw faces downward, the workpiece is pushed in by the pushing cylinder, and when the loader arm is at the end position of reversal, the phasing claw faces upward. The recessed inner diameter of the workpiece is necessarily aligned with the claw and positioned, and the workpiece is inserted into the collector chuck on the machine side by the loading cylinder, so the phase alignment is ensured, and the phase The alignment mechanism has been significantly simplified,
It is possible to reduce the cost of the device and improve maintainability.

In the above embodiment, the workpiece has a spline on the inner diameter, but the phase alignment for the inner diameter can be similarly applied to other products.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an explanatory view showing the state of movement of a workpiece and a phasing claw. 1...Workpiece, 2...Phase alignment claw, 3...Holder, 4...Loader arm, 5...High rotor,
6...Insertion cylinder, 7...Pushing cylinder,
8...Shoot.

Claims (1)

[Scope of utility model registration request] A loader arm is provided which is reversed by a high rotor to a reversal end position that is 180 degrees different from a start position, and the tip of the arm is oriented downward at the start position and at the reversal end position of the arm. The holder is provided with a phasing pawl attached to the holder so as to point upward and position the workpiece in alignment with the concave portion of the inner diameter of the workpiece, and furthermore, a phasing pawl is provided near the start position of the arm so as to position the workpiece in accordance with the concave portion of the inner diameter of the workpiece. A push cylinder that pushes the workpiece inside to the claw at the start position of the arm, and a feeding cylinder that inserts the positioned workpiece into the collector chuck on the machine side, which is provided near the reversal end position of the arm. A reversible inner diameter phasing device characterized by comprising a cylinder.