JPS61123439A - Simulator for die changing of automatic forging machine - Google Patents

Abstract

PURPOSE:To elevate an operability by detecting the shape and arrangement of a claw member, the insert allowance of a punch against the punch length and the formed article holding hole of a die and its approach at the punch driving time, by adjusting the timing to open the claw member and by collecting the adjustment data. CONSTITUTION:The same die 23 and punch 20 as those which are to be installed in the next time on an automatic forging machine are placed on the die placing stand 3 and punch placing stand 15 of a simulator 1. The die 23 and punch 20 become in the state of being centered accordingly. The adjustment work on the shape and arrangement of the claw members 42, 43 and its adjustment data are collected. Then the adjustment work on the length of the punch 20 and on the insert allowance of the punch against the formed article holding hole of the die 23 and its adjustment data are collected. The adjustment work of the timing for opening the claw members 42, 43 and escaping to the position not abutting the punch 20 by detecting by an approach switch 68 the driving of the punch 20 and the approach of the punch 20 at this driving time and the data are then collected. In the work by an automatic forging machine only to place a die and punch on each placing stand will do from next time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a simulator for changing the shape of an automatic forging machine.

When an automatic forging machine finishes forging a molded product of a certain brand, it is necessary to remove the mold for the molded product and install a new mold for the next brand, a so-called mold change operation. In such a case, check whether the shape and arrangement (installation position) of the pair of claw members provided on the die side match the diameter of the molded product held by the molded product holding hole in the new die, and also check the length of the punch. Is the punch inserted into the molded product holding hole of the die about 9 inches, and the opening timing for the claw member to escape from a position where it can hold the molded product to a position where it does not come in contact with the punch during this driving, is appropriate? However, conventionally, such adjustment work has been carried out in a narrow automatic forging machine, and in this case, the opening and closing of the claw member is linked to one drive member of the automatic forging machine. As a result, adjusting only the claw member causes the parts other than the claw member that do not need to be adjusted to operate, making the adjustment work many times and making it extremely difficult to adjust. The drawbacks were that it not only had poor performance but also took time to adjust.

It is an object of the present invention to eliminate the drawbacks of the conventional forging machine and to perform the adjustment work outside the automatic forging machine, thereby making it possible to perform the adjustment work quickly and easily.

The object of the present invention is to provide a die mounting table installed on one side of a pace frame, a punch mounting table installed on the other side of the pace frame so as to be able to reciprocate in a direction opposite to the die mounting table, and A first driving member that drives the punch mounting base, a position that is viewed from above and below the die placed on the die mounting base and can hold the molded product held in the molded product holding hole of the die, and a position outside this position. A pair of pawl members that are openable and closable between a position where the punch to be driven in does not abut, a second drive member that drives the pawl members, and the punch mounting table are moved forward to a predetermined position. When the claw member reaches the position where it detects this and outputs a signal to the second drive member, the second drive member is closed at a position where the molded product can be held, the position where the punch does not come into contact with the claw member. When changing the mold, the die mounting table and punch mounting table are installed in the automatic forging machine to open a new one. (7) Place the same die and punch, adjust the shape and arrangement of the claw member to match the diameter of the molded product held in the molded product holding hole of the die, the length of the punch, and the die. Entry allowance for the punch into the molded part holding hole,
Driving the punch when driving the second driving member;
To provide a simulator for changing the shape of an automatic forging machine, which is configured to be able to collect all data including adjustment data for the opening timing for the pawl member to escape from a position where the molded product can be held to a position where the punch does not come into contact with it during driving. achieved by.

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

In Figs. 1 to 4, 1 is a simulator for changing the shape of an automatic forging machine, and the upper surface of the base frame 2 of this simulator 1 -
A die mounting table 3 is installed on one side, and a guide frame 4 is installed on the other side.

A rotary screw shaft 5 is supported by the guide frame 4 through bearings 6° and 6' so as to face the die mounting table 3, and guide rails 7 are disposed on both sides of the screw shaft 5 in parallel thereto. There is. A sprocket 8 is attached to the shaft end of the screw shaft 5 protruding from the bearing 6'. On the other hand, a drive motor 10 is installed on a bracket 9 provided on the base frame 2, a sprocket 11 is attached to the rotating shaft of the motor, and a chain 12 is stretched between the sprocket 11 and the sprocket 8. has been done. A punch mounting table 15 is provided on the guide frame 4, and a female screw member 16 provided on the lower surface thereof is screwed onto the screw shaft 5, and a guide 17 similarly provided on the lower surface is mounted on the guide rail 7 and moved in the axial direction. Possibly installed. The front end surface and the top surface are open in front of the back wall 18 of the punch mounting table 15 on the side of the green sardine mounting table 3,
A plurality (four in the drawing) of punch mounting recesses 19 each having an arcuate bottom surface are formed in the lateral direction, and the punch 20 is placed in the recesses. 21 is punch 20
It is a cover for the presser foot.

A die 23 is placed on the die mounting table 3 in alignment with the punch 20.

Regarding the die mounting table 3 of the base frame 2, a support frame 25 is erected at a position opposite to the punch mounting table 15, and a bearing 26 is provided at the front part of the support frame on the die 23 side.
126'+ 27, rotation axis 28.29 through 27'
are supported horizontally at predetermined intervals above and below. Sleeves 31.32 are fitted onto the rotating shafts 28.29, and both sleeves 31.32 are connected by a connecting member 33. A female thread 3 is provided in the middle part of the connecting member 33 in the height direction.
4 is formed, and a rotating screw shaft 36 supported parallel to the rotating shaft 28, 29 via bearings 35 and 35' is formed on the female thread.
are screwed together.

37 is an operating handle for the screw shaft 36.

On the rotating shaft 28, 29, a pair of sleeves 38, 38, 39, 39 are provided on both sides of the sleeves 31, 32 through keys and keyways (not shown), which are movable in the axial direction, but cannot be rotated. A pair of upper and lower claw holding plates 40.41 are inserted between the sleeves 38.38 and 39.39, and the sleeves 38.38, 39.3
It is removably attached via a mounting member provided at 9 and a selt. At the front end of the claw holding plate 40.41, there is a claw member 42.43'i at the tip for holding and transporting the molded product.
A plurality of arms 44 and 45 (three in the drawing) at equal intervals in the lateral direction, that is, at the same pitch as the recess 19,
The claw members 42 and 43 are attached to face each other. 4
・7 is a detent operation handle attached to the shaft end protruding from the bearing 26' of the rotary shaft 28, and a movable clutch part 48fc provided on the rotary shaft 28 near the nodle, a fixed clutch part provided on the support frame 25. By meshing with the piece 49, the claw holding plate 4 can be removed, for example, when replacing the die.
When the claw holding plate 40 is opened wide upward, the claw holding plate 40 is prevented from falling and rotating in the closing direction.

A worm wheel 50.5 whose front shape is approximately fan-shaped is attached to the shaft end protruding from the bearings 26'' and 27' of the rotating shaft 28.29.
1 is fixed, and worms 53 and 54 provided on a vertical rotating shaft 52 are engaged with the worm wheels 50 and 51. The rotating shaft 52 is provided with a plurality of bearings 5 on the support frame 25.
5, and a bevel gear 5 at its upper end.
8 is installed. On the other hand, a drive motor 60 is installed on the top surface of the support frame 25, and a bevel gear 61 meshing with the bevel gear 58 is provided at the end of the rotating shaft of this motor.
is installed.

Reference numerals 63 and 64 are stopper arms provided at the ends of the rotating shafts 28 and 29 protruding from the bearings 26 and 27.
0.41 is in the solid line position where the molded product held in the molded product holding hole of the die can be held as shown in FIGS. It comes into contact with the tip surface. Further, in FIGS. 1 and 3, 68 is a proximity switch provided on the guide rail 7, which outputs a signal to the drive motor 60 by detecting the detected member 69 provided on the guide 17 to drive the drive motor 60. It has become.

The simulator 1 configured as described above is installed, for example, around an automatic forging machine in operation in a factory and is used to collect adjustment data.The usage situation (function) is explained as follows. That's right.

First, before starting the adjustment work using the simulator 1, place the same dies 23 and punch 20 on the die mount 3 and punch mount 15 of the simulator 1 as the new die and punch to be installed next in the automatic forging machine. Place it. Dice 2
3 and the punch 20 are in a centered state due to the above-mentioned position.

Next, adjustment work and collection of adjustment data will be explained separately for each case.

i) Shape and arrangement of claw members 42 and 43.

The drive motor 60ft is driven to rotate the rotary shaft 52, and the rotary shafts 28.29'i are rotated in opposite directions through the worm wheels 50 and 51t that mesh with the walls 53.54 on the rotary shaft 52, and the rotary shafts 28.29 through sleeves 38.3B and 39.39 that are non-rotatably fitted onto the pawl member 40.41 (i-by rotating in the closing direction, the pawl member 42.43'i 1st degree Place the molded product indicated by the solid line in Figure 2 in a position where it can be held.At this position, check whether the shape and arrangement of the claw members 42 and 43 match the diameter of the molded product held in the molded product holding hole of the die 23. do.

If this does not match, for example, the distance l between the opposing inner surfaces of the pawl members 42 and 43 is shorter than the diameter of the molded product, and when buffering against the molded product, the buffer portions are ground to match.

Also, check whether the claw members 42, 43 are placed in a position where they can hold the molded product, and change their mounting positions if necessary. In this way, the claw members 42, 43i are adjusted to a shape and arrangement that matches the molded product as shown in FIG. 5, and the adjustment data includes the thickness of the buffer portion to be ground.

Further, in connection with the above, the claw members 42, 43 must be able to reliably transport the molded product held thereto to the next process. Therefore, this adjustment is also performed. That is, when the rotary shaft 36 is rotated by the handle 37, the sleeves 31 and 32, which are integral with the connecting member 33 connected to this through the female thread 34, move on the rotary shafts 28 and 29.
Sleeves 38 located on both sides of this sleeve 31, 32
．． 38, 39.39 also move at the same time. This sleeve 3
By moving 8.38°39.39, the claw holding plate 40.4
1 is also moved from the solid line position to the chain line position in FIG. 2, thereby confirming whether the claw members 42, 43 are in a proper state to convey the molded product from the previous process to the subsequent process. If the claw members 42 and 43'i are not proper, the claw members 42 and 43'i are adjusted to make them proper, and the amount of insertion and removal of the claw members 42 and 43 is collected as adjustment data.

+t) Length of the punch 20, entry distance of the punch into the molded product holding hole of the die 23.

A punch mounting table 15 that rotates the screw shaft 5 by driving the drive motor 10 and is connected to the screw shaft through the female thread member 16.
is moved to the die side. Then, it is confirmed whether the length of the punch 20 placed on the punch mounting table 15 and the insertion distance of the die 23 into the molded product holding hole are appropriate. If the length does not match and the entry allowance is small, use the punch mounting stand 15.
A wedge or the like is driven between the back wall 18 of the punch 20 and the rear end surface of the punch 20 to fit them together. At this time, the size of the gap formed by driving a wedge or the like is collected as adjustment data.

111) The driving of the punch 20 and the timing at which the claw members 42 and 43 escape from the solid line position where they can hold the molded product to the chain line position where the punch does not come into contact.

When the punch mounting table 15 is moved forward by driving the drive motor 10t as described above, the detected member 6 provided on the mounting table 15
9 is detected by the proximity switch 6-8, and outputs a drive signal to the drive motor 60. As a result, the drive motor 60 is driven, and in this case, the drive signal becomes a reverse rotation signal, and the claw holding plates 40, 41i are rotated in the opening direction.

Proximity switch 6 for both drive motors 10, 60 as described above
8, it can be determined whether the release timing of the claw members 42, 43 relative to the driving of the punch 20 is appropriate. If the timing is not appropriate, the mounting position of the detected member 69 is changed to adjust the timing, and the distance between the mounting position of the detected member 69 and the proximity switch 68 at this time is collected as adjustment data. .

With the above, the adjustment work and collection of adjustment data for the new type of die, punch, and pawl member that will be installed next in the automatic forging machine has been completed, and based on the adjustment data obtained in this simulator 1, the pawl member Then, dies and punches will be installed, but in this case, all you need to do with the automatic forging machine is to place the dies and punches on their respective mounting tables.
All adjustment work on automatic forging machines can be omitted.

In addition, in the above case, the claw holding plates 40 and 41 of the simulator 1 are
It is also possible to remove the sleeves 38°, 38, 39, 39 from the mounting members and attach the claw holding plates 40', 41 to an automatic forging machine.

This invention is as described above, and since the adjustment work that was conventionally done inside the automatic forging machine can be done outside the automatic forging machine, the adjustment work can be done quickly and easily. Moreover,
Of course, the adjustment described above can be made by the claw member alone, but also by driving the punch into the molded product holding hole of the die, and at the time of this driving, from a position where the claw member can hold the molded product to a position where the punch does not come into contact with it. It is also possible to open the escape chamber and perform dimming, allowing for a wide range of adjustment. In addition, although it has the same functionality as an automatic forging machine, it has a simple structure, so it can be manufactured at low cost and has excellent effects such as being economical.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the invention, FIG. 2 is a plan view of the same, FIG. 3 is a right side view of the same with a portion omitted, and FIG.
The figure is a partially omitted longitudinal sectional front view of the same main part as above, and FIG. 5 is an enlarged view for explaining the relationship between the diameter of the molded product and the arrangement of the claw members. 1...Simulator 2...Pace frame 3
...Dice mounting table 4...Guide frame 5.
・Rotating screw shaft 7 ・Guide rail 10 ・・
・Drive motor 15...Punch mounting table 16...
-Female thread member 17...Guide 19...Punch placement recess 20...Punch 25...Support frame 28, 29...Rotary shaft 31, 32...
Sleeve 33...Connection member 34...Female thread
36...Rotating screw shafts 38, 38, 39
, 39...Sleeve 40.41...Claw holding plate 4
2.43... Claw member 44.45... Arm 50.51... Worm wheel 53, 54...
- Worm 60... Drive motor 68... Proximity switch 69... Detected member patent applicant Daido Steel Co., Ltd. External 1 fame 1 diagram 20 Atsushi 3 diagram? ;Figure 4

Claims (1)

[Claims] 1. A die mounting stand installed on one side of the base frame, a punch mounting stand installed on the other side of the base frame so as to be able to reciprocate in a direction opposite to the die mounting stand, and driving this punch mounting stand. The first driving member and the die placed on the die mounting table are located at a position where the molded product held in the molded product holding hole of the die can be held, and where the punch to be driven outside is located. A pair of claw members that are provided so as to be openable and closable between a pair of claw members, a second driving member that drives the claw members, and a second drive member that drives the claw members when the punch mounting table moves forward and reaches a predetermined position. Detecting the detection and outputting a signal to the second driving member, the second driving member is driven so that the claw member, which is closed at a position where the molded product can be held, opens to a position where the punch does not come into contact with it. When changing the mold, the die mounting table and the punch mounting table are configured to place the same die and punch as the die and punch of the new type installed in the automatic forging machine, and insert the die into the molded product holding hole of the die. Adjustment data for the shape and arrangement of the claw member to suit the diameter of the molded product to be held, the length of the punch, the amount of entry of the punch into the molded product holding hole of the die, and the drive of the punch when the second drive member is driven. and a mold for an automatic forging machine characterized by being configured to be able to collect data such as adjusting the opening timing for the claw member to escape from a position where it can hold the molded product to a position where it does not come into contact with the punch during driving. Replacement simulator.