JPH06142814A - Device for changing jig of forging machine - Google Patents

Abstract

PURPOSE:To quickly and easily exchange a new jig for attaching dies and other tools in a forging machine without stopping a press operation. CONSTITUTION:A standby table 17 for making a jig 2 temporarily stand by on the side of a movable table 3, and next to it a movable table 5, on which the jig 2 is loaded and moved in the same direction as the movable table 3, are arranged. Actuating plates 18, 19, by which the jig 2 on the movable table 5 is pushed at the tip end face and pushed into the movable table 3 through the standby table 17, are placed side by side in two pieces on the opposite side from the standby table 17 for the movable table 5 and movably back and forth in a direction nearly orthogonally crossed with the moving direction of the movable tables 3, 5. Cylinders 24, 25 by which these actuating plates 18, 19 are moved back and forth are provided. Cylinders 22, 23 are provided, by which engaging hooks 20, 21 rotatably engaging from the above with the upward engaging piece 4 that is provided on the jig 2 are pivotally supported and by which these engaging hooks are rotated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig replacement device for mounting a die or other tool of a forging machine.

[0002]

2. Description of the Related Art In a conventional forging machine, a jig to be replaced is carried out from a moving table provided at the bottom,
Instead, a new jig was carried into the moving table by a cylinder dedicated to each jig. Therefore, there is a problem that when one wants to use another jig immediately, he / she has to take it in / out with a crane, and at that time, the press operation must be stopped.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention solves the above-mentioned problems of the prior art, and allows a new jig to be replaced quickly and easily without stopping the press operation. The purpose is to provide.

[0004]

In order to achieve the above object, the present invention provides a forging machine as described above, wherein a jig is placed at a position spaced apart from the first moving table by a predetermined distance. A second moving table that moves in the same direction as the moving table is installed, and a standby table for temporarily holding the jig is installed at the interval between the second moving table and the first moving table.
A plurality of actuating plates that can be pushed into the first moving table through the stand by pressing the jig on the moving table with the tip surface, and the first and second moving tables on the opposite side of the second moving table from the stand. A reciprocating juxtaposed side by side in a direction substantially orthogonal to the direction of movement of the operating plate, and a first operating member for reciprocating these operating plates. A second actuating member that pivotally supports the engaging hook that rotates and engages and that rotates the engaging hook is provided.

[0005]

According to the above construction, the forward movement of one of the operating plates pushes a new jig on the second moving table with its tip surface to push it into the first moving table via the stand-by table and carry it in. After engaging the engaging hook on the other actuating plate with the engaging piece of the jig to be replaced on the first moving table, the jig is returned to the second moving table via the standby table by the returning movement of the plate. It is possible to pull out and carry out. In addition, at that time, since a new jig can be made to stand by on the standby table in advance, it is possible to carry in quickly and easily at the time of replacement and it is not necessary to stop the operation of the press.

[0006]

1 is a plan view of an embodiment of the present invention, and FIG. 2 is a front view taken along the line AA of FIG. In FIGS. 1 and 2, reference numeral 1 denotes a forging machine, and a moving table 3 on which a jig 2 for mounting a die or other tool is placed and moved under the forging machine 1.
Is installed. Engagement pieces 4 each having a tip bent upward in an L shape are provided on the lower surfaces of both sides of the jig 2. As is apparent from FIG. 1, another movable table 5 is installed at a position spaced apart from the movable table 3 by a predetermined distance so that the jig 2 can be placed on the movable table 3 and the movable table 3 can move in the same direction. As shown in FIG. 3, the moving table 5 has on its lower surface a movable rail 8 which is mounted on rollers 7 arranged in rows on a pair of supporting members 6, and between the rails 8 and 8. A rack 10 is provided on the lower surface of the rack 10, and the rack 10 is moved in the same direction as the moving table 3 by being moved by a pinion 12 that is rotationally driven by a motor 11. In FIG. 3, reference numeral 14 is a locking projection provided on the moving table 5 to lock with the front end of the jig 2, and reference numeral 15 is a passage recess of a later-described operation plate provided at a position of the moving table 5.

A waiting stand 17 for temporarily holding the jig 2 is installed between the moving table 3 and the moving table 5 below the forging machine 1. In addition, a stand 17 for the moving table 5
On the opposite side, operating plates 18 and 19 which are movable in a direction substantially orthogonal to the moving direction of the moving tables 3 and 5 are supported by a supporting member 16 and are arranged in parallel. These operating plates 18, 19
Is provided with engaging hooks 20 and 21 and swing cylinders 22 and 23 for rotating them on the tip end, and cylinders 24 and 25 provided on the rear end side.
Thus, the engaging hooks 20, 21 and the like can be moved so as to be located at the standby position shown by the solid line and the operating position shown by the chain line in FIG. When the operation plates 18 and 19 are moved, both side edges thereof are guided on the upper surfaces of the guide rails 26 and 27 provided on the support member 16 as shown in FIG. As shown in the enlarged view of FIG. 5, the engaging hooks 20 and 21 have their tips bent downward, their middle portions pivotally supported by the upward brackets 28 and 29 of the movable tables 18 and 19, and the cylinders 22 and The rod tips of 23 are connected to each other, and are rotated by the cylinders 22 and 23 about the pivot shafts 31 and 32 as shown by solid lines to engage with the engaging pieces 4 of the jig 2. As described above, the jig 2 is rotated in the opposite direction so as to be disengaged from the engaging piece 4 of the jig 2.

In FIGS. 1 and 2, reference numeral 30 denotes a cover plate provided so as to cover portions of the operating plates 18 and 19 other than the tips thereof, and a spare jig placed and supplied on the moving table 5 is provided on the cover plate 30. 2 can be placed.

Next, the operation of the above embodiment will be described. In order to replace the jig 2 used in the forging machine 1, the jig 2 (2a) to be replaced in FIG. 1 is moved to the unloading position shown by the solid line by moving the moving table 3, and the original chain line is used. The position shown is available as a loading position for a new jig 2 (2b) to be used instead. Next, the motor 11 is driven to move the moving table 5 by the pinion 12 and the rack 10 to position the new jig 2 (2b) on the table at the carry-out position shown by the solid line. After that, the cylinders 24 and 25 are operated to move the operation plates 18 and 19 to the standby table 17 side. At this time, the operating plates 18 and 19 are formed in the passage recess 15 of the moving table 5.
Through the end face 18 of the working plate 18
a (see FIG. 5) abuts on the engaging piece 4 of the jig 2 and pushes it in. By this push-in, the jig 2 (2b) is directly positioned at the loading position of the moving table 3 via the standby table 17.

On the other hand, when the engaging hook 21 or the like at the tip of the operating plate 19 is located at the operating position on one side of the moving table 3 as shown by the chain line in FIG. 1, the cylinder 23 operates to engage the engaging hook 21. Is rotated to engage with the engagement piece 4 of the jig 2 (2a). After this engagement, the operation of the cylinder 25 is released, whereby the jig 2 placed at the unloading position of the moving table 3 is released.
(2a) is pulled out to the movable table 5 side via the stand 17, and when the engaging hooks 21 and the like return to the stand-by position, they are located at the carry-out position on the table. The carried jig 2 (2a) is further moved by the movement of the moving table 5, and is carried to another place such as the lid plate 30 by a crane (not shown).

When pulling out the jig 2 (2a), the engaging hook 21 is rotated from above to move the jig 2 (2a).
Engages with the engaging piece 4 of. Therefore, as in the conventional case, the engaging piece 4
As compared with the one that moves from the lateral direction and is engaged, there is no lateral movement, which makes the work easier. In the above description, the new jig 2 (2b) is carried in from the moving table 5 for convenience of explanation, but the new jig 2 (2b) is made to stand by from the moving table 5 on the waiting stand 17 in advance. It may be carried in from the top, which will speed up the work.
Further, the carried out jig 2 (2a) is carried out on the moving table 5 all at once, but it may be carried out on the waiting table 17 once instead of being carried out on the moving table 5 immediately. The procedure can be arbitrarily changed each time by issuing a command from the operation command room (not shown) to each of the operating members that operate the moving tables 3 and 5 and the operating plates 18 and 19 by the control panel.

[0012]

The present invention has the above-mentioned structure,
The forward movement of one of the operating plates pushes a new jig on the second moving table with its tip end surface, pushes it into the first moving table via the stand-by table, and carries it in. After engaging with the engaging piece of the jig to be replaced on the moving table, the jig can be pulled out to the second moving table via the standby table by the returning movement of the plate and carried out. Therefore, the replacement jig and the new jig that replaces the replacement jig should be installed on the second moving table, the stand, and the first jig.
The upper surface of the moving table can be continuously moved in a loop shape so that the jig replacement work in the forging machine can be performed quickly and easily, and the press operation does not have to be stopped at this time. Further, since the engagement piece of the jig and the engagement hook can be engaged from above, there is an excellent effect that workability is further improved.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view taken along the line AA of FIG.

FIG. 3 is a side sectional view of a moving table.

FIG. 4 is a vertical sectional view of an operating plate.

FIG. 5 is an enlarged side view of an engagement hook portion.

[Explanation of symbols]

 1 Forging machine 2 Jig 3 Moving table (1st moving table) 4 Engaging piece 5 Moving table (2nd moving table) 10 Rack 11 Motor 12 Pinion 17 Standing stand 18, 19 Operating plate 20, 21 Engaging hook 22, 23, 24, 25 cylinders

Claims (1)

[Claims] 1. A forging machine having a first moving table installed at the bottom for moving a jig for mounting a tool such as a die, and the jig is mounted at a position spaced apart from the first moving table by a predetermined distance. The second moving table which is placed and moves in the same direction as the first moving table is installed, and the standby table for temporarily holding the jig is installed between the second moving table and the first moving table, and the second moving table is installed. A plurality of actuating plates that can be pushed into the first moving table through the waiting table by pushing the jig on the table with the tip surface, and the first and second moving tables on the opposite side of the second moving table from the waiting table. Is provided side by side so as to be reciprocally movable in a direction substantially orthogonal to the moving direction, and a first operating member for reciprocating these operating plates is provided. Rotate from and engage While pivoting the engaging hook,
A jig replacing device for a forging machine, comprising a second actuating member for rotating the engagement hook.