JPS6344192Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a phase adjustment device for a transfer press.

Conventionally, in transfer presses, the timing of the vertical movement of the slide and the advance/return movement of the transfer is such that after the transfer has stopped for a certain period of time at a crank angle of around 270 degrees, the slide moves to around top dead center (0 degrees). Advance when the
A fixed type is often used in which the slide stops at around 90 degrees for a certain period of time and then returns when the slide is around bottom dead center (180 degrees). With this transfer, the dimensions of the mold are limited to a certain range, which is an obstacle to expanding the variety of products.

The purpose of the present invention is to eliminate this drawback by making the internal gear of the planetary gear type drive device interposed between the rotary shaft of the press and the transfer device adjustable by a fixed angle, thereby improving the speed of the slide and transfer device. To provide a phase adjusting device for a transfer press, which has a simple structure and is easy to handle, and can change the timing by adjusting the phase with the transfer press.

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

1 and 2, a drive device 1 for dynamically connecting a rotary shaft of a press and a transfer device is shown.

An input shaft 3 is rotatably provided in a body 2 of a drive device 1. The input shaft 3 is connected to the rotating shaft of the press via a coupling. A gear 4 is fixed to the input shaft 3, and an intermediate shaft 5 fixed to the fuselage 2
It meshes with a gear 6 rotatably provided. A gear 7 fixed concentrically with a sun gear 8 rotatably provided on the fuselage 2 meshes with the gear 6. An output shaft 9 is rotatably provided in the body 2 concentrically with the sun gear 8. The output shaft 9 is connected to an input shaft of a transfer device (not shown) via a coupling.

An arm 10 is fixed to the output shaft 9, and the arm 1
Three planetary gears 11 rotatably held at zero are meshed with the sun gear 8. An internal gear 12 rotatably provided in the body 2 concentrically with the sun gear 8 meshes with the outside of the planetary gear 11.
A gear 13 is formed on the outer periphery of the internal gear 12. A pinion 15 is fixed to the output shaft of a motor 14 with a brake fixed to the body 2, and the pinion 15 meshes with the gear 13.

Furthermore, locking grooves 16, 16a are provided at two locations on the outer circumference of the internal gear 12 at different heights, as shown in FIGS. 1 and 4. Two pins 17, 17a are provided on the body 2 at heights corresponding to the locking grooves 16, 16a, respectively, and in different directions by 90 degrees. When one pin 17 is engaged with the locking groove 16, the locking groove 16a is connected to the other pin 17a.
is provided at a position with a central angle of 140 degrees, as shown in Figure 2. The piston portions 18 of the pins 17, 17a fit into a cylinder 19 provided in the body 2. A spring 20 is provided on the rear side of the piston portion 18, and urges the pins 17, 17a in a direction to protrude. A port 21 is provided in the cylinder chamber of the cylinder 19, and when pressure fluid is supplied from the port 21, the piston portion 18 is urged by the fluid pressure, overcomes the force of the spring 20, and retreats the pins 17, 17a. That is, the pins 17 and 17a can be freely retracted into and out of the locking grooves 16 and 16a, respectively. In addition, by providing a limit switch (not shown) behind the pins 17 and 17a, which pin 17
Alternatively, it is detected whether the locking groove 17a enters and is engaged with the locking groove 16 or 16a, and interlock with other devices is established. Next, we will discuss the effect.
In FIGS. 1 to 3, in the drive device 1 that normally operates in conjunction with a press, the pin 17 and the locking groove 16 of the internal gear 12 are connected to each other as shown in FIG.
At a position that coincides with
7 is projected into the locking groove 16 and locked, the motor 14 is braked, and the relationship between the slide of the press and the transfer device is shown by curves A and B in the timing diagram shown in FIG. It maintains a constant timing. When changing the timing, pressure fluid is supplied to the port 21 of the cylinder 19, the pin 17 is moved back from the locking groove 16, and the motor 14 is rotated to change the internal gear 12 via the pinion 15 and gear 13. Rotate. At this time, the press is stopped, so the sun gear 8 is fixed via the gears 7, 6, 4 and the input shaft 3 to the rotating shaft of the stopped press.
Therefore, the internal gear 12 rotates the planetary gear 11 around the sun gear 8.

As the planetary gear 11 rotates, the output shaft 9 rotates together via the arm 10, and the input shaft 3 and the output shaft 9
The phase changes. The motor 14 is stopped at the position where the locking groove 16a matches the pin 17a, and the pin 17a
protrude and engage with the locking groove 16a. The other pin 17 is in contact with the outer periphery of the internal gear 12. By the above operation, the internal gear 12 is rotated 140 degrees in FIG. 2, so the output shaft 9 is rotated 70 degrees by the action of the planetary gear 11, and the phase can be changed by 70 degrees with respect to the input shaft 3. Therefore, in the timing diagram shown in FIG. 3, the advance return curve of the transfer is shown by a dotted line in contrast to the upward and downward curve A of the slide of the press.
The timing can be changed by adjusting the phase by 70 degrees as shown in B′.

As is clear from the above explanation, according to the present invention, it is possible to adjust the timing of Porless slide and transfer by changing the phase of the output shaft by 70 degrees with respect to the input shaft. Therefore, the size range of usable molds can be expanded, and the variety of products can be increased accordingly. The structure is relatively simple and handling is easy. The practical effects and advantages are extremely large.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of the main part of the drive device provided with the embodiment, Fig. 2 is a partially sectional plan view thereof, Fig. 3 is an explanatory diagram of functions, and Fig. 4 is a cross-sectional view of Fig. 2. It is. 1 is a drive device, 2 is a fuselage, 3 is an input shaft, 4 is a gear, 5 is an intermediate shaft, 6 is a gear, 7 is a gear, 8 is a sun gear, 9 is an output shaft, 10 is an arm, 11 is a planetary gear, 12 is an internal gear, 13 is a gear, 14
is the motor, 15 is the pinion, 16 is the locking groove, 17
is a pin, 18 is a piston part, 19 is a cylinder, 2
0 is a spring, and 21 is a port.

Claims (1)

[Scope of Claim for Utility Model Registration] A device for adjusting the phase of a transfer drive device of a transfer press, including an output shaft 9 connected to the transfer press and rotatably provided on the machine body, and an output shaft 9 concentric with the output shaft 9 and rotating. A sun gear 8 which is freely provided and is dynamically connected to the rotating shaft of the press.
a planetary gear 11 that is rotatably provided on an arm 10 fixed to the output shaft 9 and meshes with the sun gear 8; and an internal that is rotatably provided concentrically with the output shaft 9 and meshes with the planetary gear 11 from the outside. A motor 1 with a brake, in which a gear 12 and a pinion 15, which is provided on the fuselage and fixed to its output shaft, mesh with a gear 13 formed on the outer periphery of the internal gear 12.
4, a plurality of locking grooves 16, 16a provided on the outer periphery of the internal gear 12 at different positions in the axial direction and having a required center angle; 1. A phase adjustment device for a transfer press, comprising: a plurality of cylinders 19 which are installed in a cylinder and whose pistons are energized and controlled to alternately engage and disengage, thereby changing the phase of an internal gear 12.