JPH077002Y2 - Transfer coupling device in forging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a transfer coupling device in a bolting machine, a header, and other forging machines.

2. Description of the Related Art Conventionally, in a material transfer device used for bolt homers, headers and other forging machines, a rod as a drive source converts a reversing motion from a crank or the like into a horizontal reciprocating motion to transmit a driving force. . An example of the structure of the connecting portion for converting the reversing motion into the horizontal reciprocating motion is shown in FIGS. 4 and 5. That is, 11 is a rod, which is adapted to reciprocate horizontally to provide a driving force for the transfer device. A pin 12 is pivotally supported at the end of the rod 11, and the pin 12 is pivotally supported at an eccentric position with respect to a shaft 13 that makes a constant angle reversal motion. 14 shows a bearing.

The transfer device has a structure in which a material is gripped and sequentially transferred to a plurality of die positions.

Problems to be Solved by the Invention In the structure of the connecting portion for converting the reversing motion into the horizontal reciprocating motion as described above, the change of the stop position due to the gap of the pin 12 or the gap of the bearing 14 and the bush, etc. The accuracy and the life of the mold are greatly affected. These gaps gradually increase with the operating time of the machine, and may damage the product to be manufactured. If the gap becomes large, the forging process will be performed by the transfer without the blank being transferred being located at the center of the die and the punch, and thus the transfer peripheral device and the die, punch and the like will be damaged. In order to remove these gaps, it was necessary to replace the pins and bearings, and there was a problem that running costs increased.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a connecting device capable of realizing a precise movement without a gap by improving a connecting portion of a rod end which horizontally reciprocates.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a transfer connecting device for bolting machines, headers, and other forging machines, in which a rod end that horizontally reciprocates as a connecting part that converts a reversing motion into a horizontal reciprocating motion. And a pin fixed to an eccentric position with respect to a shaft which is sandwiched by a plurality of fixed bearings and a plurality of movable bearings in the bearing box and which has an inversion motion, and which is provided in the bearing box. The transfer coupling device in the forging machine is provided with a pipe screw for adjusting the position of the movable bearing and a fixing bolt.

Function In the present invention, the pin is sandwiched between the bearing at the fixed position and the movable bearing in the bearing box provided at the end of the rod as a connecting portion for converting the reversing motion into the horizontal reciprocating motion. The gap of no longer occurs. Moreover, since the position of the movable bearing is adjusted by the pipe screw and the fixing bolt provided in the bearing box, the movable bearing is in accurate contact with the pin, and the stop point position for converting from forward to backward or backward to forward is precise. Therefore, the reciprocating position of the transfer device, the claws, and the die and punch are aligned with each other very accurately.

Example One example shown in the drawings will be described below.

FIG. 1 is a front view of a main part of a bolt home showing a part of a transfer device. 1 is a transfer device, 2 is a claw, a device for gripping a material and transferring it to a predetermined position such as a front surface of a die by a transfer device 3, The rod is configured to transmit a driving force for horizontally reciprocating the transfer 1.

2 and 3 are an enlarged side view and a plan view of the connecting portion of the present invention, in which 3 is a rod, which is engaged with a pin 4 located in a bearing box 6 provided at an end of the rod 3. There is. This pin 4 has a shaft 5 that is rotated by a certain angle, for example 180 °
The shaft 5 is fixed at an eccentric position, and the reversing motion of the shaft 5 is converted into a horizontal reciprocating motion and transmitted to the rod 3. The bearing box 6 is provided with fixed bearings 7 and 7 and movable bearings 8 and 8, and the pin 4 is sandwiched between the fixed bearings 7 and 7 and the movable bearings 8 and 8. 9 and 9 are pipe screws,
The positions of the movable bearings 8 and 8 can be finely adjusted through fixing bolts 9a provided in the bearing box 6 and inserted into the pipe screw 9, so that the movable bearings 8 and 8 come into contact with the pin 4. ing. A lock nut 10 locks the fixing bolt 9a fixed to the movable bearings 8 and 8 in the pipe screws 9 and 9.

In this embodiment, since the pin 4 is constantly sandwiched by the fixed bearings 7 and 7 and the movable bearings 8 and 8 in the bearing box 6 provided at the end of the rod 3,
There is no gap between them, and the stop point position as the forward or backward conversion point becomes accurate, which has a great effect on the accuracy of the product and maintenance of the life of the mold.

Effect of the Invention Since the present invention has the above-described structure, the pin is always held by the fixed and movable bearings in the bearing box provided at the end of the rod that reciprocates horizontally, and the gap at this part Since there is no occurrence of, the positional accuracy of the stop point during the conversion from the forward to the reverse or vice versa became extremely high. Therefore, horizontal reciprocating motion is precise, transfer movement, claw position, etc. can be set accurately, which improves the accuracy of the product as a bolt homer and other forging machines, extends the life of mechanical equipment and enables long-term use. The effect is great. Furthermore, by adjusting the position of the movable bearing with the pipe screw and the fixing bolt, when converting the reversing motion to the horizontal reciprocating motion, there is no gap, so it is possible to perform high-precision forging work and reduce the running cost. It was possible to provide an excellent transfer coupling device having

[Brief description of drawings]

FIG. 1 is a front view of an essential part of a transfer device, FIG. 2 is a side view of an essential part of a transfer connecting device, FIG. 3 is a plan view of the same, and FIG. 4 is a side view of an essential part of a conventional transfer connecting device. The figure is a plan view of the same. 3 …… Rod 4 …… Pin 6 …… Bearing box 7 …… Fixed bearing 8 …… Movable bearing 9 …… Pipe screw

Claims (1)

[Scope of utility model registration request] 1. A transfer box in a forging machine such as a bolt homer, a header or the like, and a bearing box provided at a rod end for horizontal reciprocating motion as a connecting part for converting a reversing motion into a horizontal reciprocating motion. A pin that is sandwiched between a plurality of fixed bearings and a plurality of movable bearings and is fixed in an eccentric position with respect to an axis that makes a reversing motion, a pipe screw that is provided in the bearing box and that adjusts the position of the movable bearing, and a fixing bolt. A transfer connecting device in a forging machine, which is characterized by being provided with.