JPS6157093B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a disc-shaped material and a disc-shaped ring (a disc-shaped material with a hole in the center).
Regarding molding methods such as

(Prior Art) Conventionally, disc-shaped materials, disc-shaped rings, etc. have been processed by inefficient free forging methods using forging presses, hammers, etc., despite their high demand. Therefore, there were many problems such as high processing man-hours and processing costs, and poor processing accuracy.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and provides a method for easily rolling forming a disc-shaped material, a disc-shaped ring, etc., with a single device. This is what we propose.

(Means and effects for solving the problem) For this reason, the present invention provides a pair of rollers that sandwich the central part of the disc-shaped material from above and below to provide rotational drive when roll-rolling the disc-shaped material. The main shaft of the disc is arranged to face the main shaft of the pair of main shafts, and the relative distance between the main shafts of the main shaft of the main shaft of the main shaft of the main shaft of the main shaft of the main shaft of the main shaft of the disc-shaped material is arranged so as to be mutually adjustable. The outer-diameter forming roll is arranged between the same pair of main shafts and the same outer-diameter forming roll, and faces each other across the disk-shaped material, and is arranged in the vertical direction and in the radial direction of the disk-shaped material. It is possible to move to
a pair of web forming rolls that are rotationally driven in a predetermined direction; and a pair of web forming rolls that are rotatably driven while sandwiching the outer periphery of the disc-shaped material from above and below, and that are movable in the radial direction of the disc-shaped material. Forming comprising a pair of rim forming rolls and a guide roll that rotates freely while contacting the outer peripheral end surface of the disk-shaped material and is movable in the radial direction of the disk-shaped material. Using a device, the outer diameter surface of the disc-shaped material is rolled and formed by the outer diameter forming rolls while the central part of the disc-shaped material is held between the pair of main shafts, and The web forming rolls are moved in the radial direction of the disk-like material to roll-form the web portion of the disk-like material, and the pair of rim forming rolls are used to roll and form the rim portion of the disk-like material. This is a method for forming a material by rolling.

In addition, the present invention provides an inner diameter forming roll that is inserted into the hole of the disc-shaped material and provides rotational drive to the disc-shaped material when roll-rolling a disc-shaped material with a hole in the center; It is arranged so as to face the forming roll of the same inner diameter, and the relative distance between the forming roll and the forming roll of the same inner diameter is mutually adjustable. , which are disposed between the same inner diameter forming roll and the same outer diameter forming roll, face each other across the disk-shaped material, and are movable in the vertical direction and the radial direction of the disk-shaped material, and A pair of web forming rolls that are rotationally driven in a predetermined direction, and a pair of web forming rolls that are provided on the opposite side of the web forming roll with the inner diameter forming roll as the center, and are rotationally driven while sandwiching the outer periphery of the disc-shaped material from above and below. At the same time, a pair of rim forming rolls movable in the radial direction of the disc-shaped material rotate freely while contacting the outer peripheral end surface of the disc-shaped material, and the disc-shaped material is rotated freely. Using a forming device equipped with a guide roll provided so as to be movable in the radial direction, the inner diameter forming roll and the outer diameter forming roll sandwich the disc-shaped material and form the outside of the disc-shaped material. The radial surface and the inner diameter surface are rolled and formed, and the pair of web forming rolls are moved in the radial direction of the disc-shaped material to roll-form the web portion of the disc-shaped material, and the pair of web forming rolls are moved in the radial direction of the disc-shaped material. This is a method for forming a blank material, which is characterized in that the rim portion of the disk-shaped blank material is rolled and formed using a rim forming roll.

In the method of the present invention, by providing the above-mentioned mechanism, the outer diameter part, the inner diameter part,
The web portion, rim portion, etc. can be processed simultaneously with one device, significantly reducing the working time.

Further, in the method of the present invention, the pair of web forming rolls are connected to a pair of main shafts (or inner diameter forming rolls).
By placing it between the and the outer diameter forming roll,
There is no need to move the web forming roll in the radial direction of the material other than for the rolling process.

That is, when rolling a disc-shaped ring body with a hole in the center, the diameter of the disc-shaped ring body increases as the rolling process progresses. If it is not placed between the roll and the outer diameter forming roll, a moving mechanism for the web forming roll must be added in addition to the reciprocating motion for rolling forming, and for this reason, the web It becomes necessary to provide a complicated control mechanism for the forming rolls.

In addition, when forming a disk-shaped material without a hole in the center, as shown in Figure 1, only one pair of upper and lower main shafts is applied to the material from the outer diameter forming roll, _F1 , as shown in Figure 1. In this case, in the present invention, when the web forming roll rolls and forms the web portion of the material, F ₁ is reduced by the force F ₂ applied outward in the radial direction of the material. Therefore, there is an advantage that the difficulty in holding the disk-shaped material can be solved.

Furthermore, in the method of the present invention, when rolling forming a disk-shaped ring having a hole in the center, the pair of rim forming rolls are provided on the side substantially opposite to the outer diameter forming roll with the inner diameter forming roll at the center. It has the advantages explained below.

That is, in FIG. 3, a disc-shaped ring body 1' is compressed and rolled between an inner diameter forming roll 2-3 inserted into a central hole and an outer diameter forming roll 6 disposed on the outer diameter surface of the disc-shaped ring body. As the forming progresses, the diameter of the raw material 1' of the disc-shaped annular body gradually increases, and accordingly, the rim forming rolls 7 and 8 must be moved outward in the radial direction of the disc-shaped annular body. Must be.

In this case, if the rim forming rolls are arranged on the side substantially opposite to the outer diameter forming roll 6 with the inner diameter forming rolls 2-3 at the center as in the present invention, the rim forming rolls 7 and 8 There is no need to modify the axial direction by simply moving the material 1' in the radial direction of 1', but if it is placed elsewhere, the raw material 1' of the disc-shaped ring body 1' In addition to the radial movement of , the axial direction must be corrected by θ. Therefore, the movement means for the rim forming rolls 7, 8 and the control means thereof become complicated to the extent that this axial correction is required, resulting in an increase in cost. Note that when rolling a disc-shaped material without a hole in the center, the center of the disc-shaped material is fixed at a position where it is held between the main shafts during rolling. No matter where it is placed on the outer periphery of the shaped material, the above-mentioned problem will not occur.

(Example) An example of the present invention will be described below with reference to the drawings. Fig. 1 is an explanatory diagram showing a state in which a disk-shaped material is being rolled and formed by a material forming apparatus showing an example of the present invention; FIG. 2 is an explanatory view showing a state in which a disk-shaped annular material is similarly rolled.

First, in FIG. 1, an apparatus for rolling forming a disk-shaped material 1 includes a main shaft 2 that supports the center of the material 1 and provides rotational drive, a support shaft 3 that is rotatable and has a rolling mechanism, and a material. Rolls 4 and 5 for rolling the web portion of the profile 1, roll 6 for rolling forming the outer diameter portion, rolls 7 and 8 for rolling forming the rim portion,
It is composed of a roll 9 that detects the outer diameter dimension.
Usually the rolls 4, 5, 7, 8 are rotationally driven,
Moreover, each roll has a mechanism for moving in the axial direction and radial direction of the raw material 1. Further, the roll 6 is rotatable and has a mechanism for moving the material 1 in the radial direction. On the other hand, the roll 9 moves as the outer diameter of the material 1 increases, and the amount of movement is detected by a detection device (not shown).

FIG. 2 shows a state in which a disk-shaped annular body material 1' is being rolled and formed. In this case, the main shaft 2 and the support shaft 3 are connected, and the disk-shaped annular body material 1' Roll 2-3 that rolls the inner diameter surface of '
However, of course, this roll 2-3 can be opened upward. The other rolls 4, 5, 6, 7, 8, and 9 are the same as those shown in FIG.
Centering rolls 10, 11 and guide rolls 12, 13 are applied to both FIGS. Centering roll 1
0 and 11, the center of the raw material 1' is the roll 2-3.
and for holding the material 1' so that it is always located at the center or axis of the rolls 4, 5, 6, 7, and 8. Also, guide rolls 12,1
3 assists the centering rolls 10 and 11 and protects the roll 9.

Next, the outer diameter rolling roll 6 and the centering roll 1
The moving mechanism of 0 and 11 will be explained with reference to FIG.
The roll 6 is attached to the roll frame 14,
The roll frame 14 is moved in the radial direction of the material by a moving device 16 attached to the main frame 15 of the material rolling forming apparatus. Also roll 10,
Reference numeral 11 denotes a link mechanism 1 whose fulcrums are pins 17 and 18 attached to the roll frame 14, respectively.
It is attached to moving devices 21 and 22 which are fixed to the roll frame 14 via 9 and 20. The link mechanisms 19 and 20 are connected by a connecting link 23, and a guide 24 is attached to the connecting link 23, and slides on the roll frame 14. This mechanically synchronizes the operation of the rolls 10, 11. Of course, the control circuits of the moving devices 21 and 22 are also configured so that they are synchronized.

The guide rolls 12 and 13 are connected by a connecting shaft 25 shown in FIG. 5, and a moving device 26 moves the material in the radial direction. The moving device 26 is fixed to the housing 27 of the rolls 7, 8,
The housing 27 is moved in the radial direction of the material by a moving device 28 fixed to the main frame 15 of the material rolling and forming apparatus.

Next, the effect will be explained. First, I will explain how to carry in and center the materials when carrying them in.
Centering is required when carrying in the material when the disk-shaped material shown in FIG. 1 is rolled. As shown in Fig. 1, the disk-shaped material 1 is supported at the center, so if it is not supported in a securely centered state when it is delivered, it will not only be impossible to roll and form with high precision, but in extreme cases, the rolling Molding itself becomes impossible. For this reason, reliable centering is required during transport.

On the other hand, in the case of the disc-shaped annular body shown in Fig. 2, the standard for rolling the homogeneous material 1' is the inner diameter surface of the material 1' (the contact surface with the rolls 2-3). No special centering required.

Here, to explain the centering method when carrying in the disk-shaped material 1 with reference to FIGS. 4 to 6, first, the material (in this case, the material before rolling)
Before carrying in the raw material, the centering rolls 10 and 11 are moved and set by moving devices 21 and 22 relative to the outer diameter rolling roll 6 to a position that takes into account the outer diameter dimension of the material. That is, as shown in FIG. 6, points a, b, and c where the rolls 6, 10, and 11 contact the outer diameter of the material 1 to be carried in are the outer diameter dimensions of the material 1.
The positions of the rolls 10 and 11 are set so as to form D ₀ (naturally, the hot dimension is the hot dimension, and the cold dimension is the cold dimension). After the setting is completed, the material 1 is carried in using the loading/unloading device 30 having two material support rods 29 .

Next, the moving device 16 simultaneously moves the roll 6 and the rolls 10 and 11 in the radial direction toward the main shaft 2 and the support shaft 3 to a predetermined position. That is, the rolls 6, 10, and 11 are simultaneously moved and set to a position where the center point of the circle formed by the points a, b, and c coincides with the center axes of the main shaft 2 and the support shaft 3. Next, the guide rolls 12 and 13 are moved toward the main shaft 2 and the support shaft 3 by the moving device 26. In this case, if the amount of movement is insufficient, the moving device 28 moves the housing 27 to compensate.

By this movement of the guide rolls 12 and 13, the formed material 1 is pressed against the rolls 6, 10 and 11 and centered. After centering is completed, the support shaft 3 is rolled down, and the material 1 is attached to the main shaft 2 and the support shaft 3.
This will definitely be supported by Next, loading/unloading device 3
0 moves out of the material rolling and forming apparatus, the carrying-in, centering and supporting steps of the material 1 are completed, and rolling is started. Of course, in the above, the material support rod 29 can be appropriately moved up and down to facilitate centering and support.

A disk-shaped material 1 shown in FIG. 1 is held between main shafts 2 and 3 and web forming rolls 4 and 5.
The upper and lower web forming rolls 4 and 5 are simultaneously rolled down into the formed material 1, and the formed material 1 is further rolled and formed while moving outward in the radial direction. At the same time, the web portion is rolled into a predetermined shape, and an outer diameter forming roll 6 disposed movably in the radial direction is pressed against the formed material 1 to form the outside of the formed material 1. The rim forming rolls 7 and 8 are pressed against the outer periphery of the formed material 1 from above and below, and the rolling action of the web forming rolls 4 and 5 and the outer diameter forming roll 6 prevents the occurrence of concave and cracks in the diameter part. The formed material 1 is rolled and formed to a predetermined height while preventing the upper and lower concave portions of the material 1 from occurring. Guide roll 1
2 and 13 rotate while contacting the outer peripheral end surface of the web forming rolls 4 and 5 when the diameter of the formed material is sequentially enlarged, and also adjust the roundness of the formed material 1 while being displaced outward in the radial direction. Helps ensure that.

When rolling the disk-shaped annular material 1' shown in FIG. The formed material 1' is compressed and rolled by the outer diameter forming rolls 6 and 6, and the other configuration is the same as that shown in FIG.

Next, to explain the centering and unloading method when carrying out the formed material, centering is required when carrying out the formed material. This is the case. As shown in Fig. 2, when rolling a disc-shaped annular material 1', the standard for rolling the material 1' is the inner diameter surface of the material 1' (with respect to the roll 2-3). The center axis of the rolls 2-3 and the center point of the formed material 1' do not coincide with each other, and the distance between them becomes larger as rolling is carried out.

For this reason, if it is attempted to carry out the formed material 1' in the same position after completion of rolling, the size of the outlet of the formed material rolling and forming apparatus will be extremely large, resulting in a large structural disadvantage. In addition, a complicated mechanism is required as an unloading device.
I don't see any advantage. In the case of the disc-shaped material shown in FIG. 1, the center point of the material 1 is the same as the position at which it was centered at the time of delivery, so it can be transported out without any problem.

Now, to explain the centering method of the disc-shaped ring body when unloading with reference to Figs. 3 to 7, the raw material 1' of the disc-shaped ring body after rolling is completed.
As shown in Fig. 3, the center of the roll 2-3 and the center of the formed material 1' do not coincide, and the center of the formed material 1' is separated from the center of the roll 2-3 by a distance A. It is well located.

Therefore, after the completion of rolling, it is necessary to move the formed material 1' using the rolls 6, 10, 11 and rolls 12, 13 until the center of the formed material 1' coincides with the center of the rolls 2-3. In this method, first, the rolls 6, 10, and 11 are placed in the state at the end of rolling,
That is, each roll is held in a position where it is in contact with the raw material 1', and in this state, the moving device 16
As a result, the rolls 6, 10, and 11 are moved to a position where the center of the raw material 1' coincides with the center of the roll 2-3, and held at that position. This amount of movement is determined by the detected value of the outer diameter of the material 1' by the outer diameter detection roll 9. In this case, the outer diameter detection roll 9 detects the dimension from the center of the roll 2-3, so the outer diameter dimension of the material 1' is calculated based on the detected position of the roll 6 at the end of rolling. Ru.

On the other hand, the rolls 12 and 13 press the material 1' with a constant pressing force even after the completion of rolling, and if the rolls 6, 10, and 11 are simultaneously moved by the moving device 16, the moving device 26 or the moving device 28 With the formed material 1' being pressed against the rolls 6, 10, 11 by both the rollers 6, 10, and 11, it is moved in the opposite radial direction as the rolls 6, 10, and 11 move. As a result, the formed material 1' is moved in the radial direction while being supported by the rolls 6, 10, 11 and rolls 12, 13, and as described above, this movement is caused by the center of the formed material 1' being between the rolls 2-3. This is done until the position coincides with the center. FIG. 7 shows the state after this movement has been carried out.

Next, after the material 1' is held in this state,
The loading/unloading device 30 having the two material support rods 29 is moved to the position shown in FIG. 7. then roll 1
After releasing the pressing forces 2 and 13 and delivering the material 1' to the material support rod 29, each roll is moved by its respective moving device in the direction in which it is released from the material 1'. .

Next, the carry-in/out device 30 moves out of the material rolling forming apparatus and carries out the material 1'. Of course, in the above description, it is natural to move the material support rod 29 up and down as appropriate to facilitate the transfer of the material 1'. In addition, rolls 6, 10, 11
After moving and setting the rolls 12 and 1 to a predetermined position,
3, move the material and rolls 6, 10, 11
Centering may also be performed by pressing against.

(Effects of the Invention) The present invention is configured as explained in detail above, and it is possible to easily roll and form a disc-shaped material or a disc-shaped ring using each roll with one device. This method is extremely beneficial as it can significantly reduce the number of man-hours and does not increase costs.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present invention, a side view showing a state in which a disk-shaped material is being rolled and formed;
The figure is a side view showing the state in which the disc-shaped annular material is rolled and formed, Figure 3 is a plan view of Figure 2, and Figure 4 shows the movement mechanism of the same outer diameter rolling roll and centering roll. FIG. 5 is a plan view showing the moving mechanism of the guide roll, FIG. 6 is a plan view showing the centering state when carrying in the disk-shaped material, and FIG. 7 is a plan view showing the disk-shaped ring being carried out. FIG. Explanation of the main parts of the figure, 1... Disk-shaped material, 1'... Disc-shaped ring material, 2... Main shaft, 3... Support shaft, 2-3... Inner diameter forming roll,
4, 5... Web forming roll, 6... Outer diameter rolling forming roll, 7, 8... Rim forming roll, 10,1
1... Centering roll, 12, 13... Guide roll, 16, 28... Moving device.

Claims (1)

[Scope of Claims] 1. When roll-rolling a disk-shaped material, a pair of main shafts that sandwich the central part of the disk-like material from above and below to provide rotational drive; Outer diameter forming rolls which are arranged to face each other and whose relative spacing with the pair of main shafts can be adjusted mutually and which roll and form the outer diameter surface of the disk-shaped material, and the same pair of main shafts. and the outer diameter forming roll, facing each other across the disc-shaped material from above and below, movable in the vertical direction and radial direction of the disc-shaped material, and rotating in a predetermined direction. a pair of driven web forming rolls;
A pair of rim forming rolls that are rotatably driven by sandwiching the outer periphery of the disc-shaped material from above and below and are movable in the radial direction of the disc-shaped material, and an outer peripheral end surface of the disc-shaped material. Using a molding device equipped with a guide roll that freely rotates while in contact with the disc-shaped material and is movable in the radial direction of the disc-shaped material, the central part of the disc-shaped material is While being held between the pair of main shafts, the outer diameter surface of the disc-shaped material is rolled and formed by the outer diameter forming rolls, and the pair of web-forming rolls are moved in the radial direction of the disc-shaped material. A method for forming a raw material comprising the steps of: rolling a web portion of the disc-shaped raw material; and rolling forming a rim portion of the disc-shaped raw material using the pair of rim forming rolls. 2. When roll-rolling a disc-shaped material with a hole in the center, an inner diameter forming roll that is inserted into the hole of the disc-shaped material and gives rotational drive to the disc-shaped material and an inner diameter forming roll An outer diameter forming roll which is arranged to face the roll and whose relative distance from the same inner diameter forming roll can be mutually adjusted and roll-forms the outer diameter surface of the same disc-shaped material, and an identical inner diameter forming roll. and the outer diameter forming roll, facing each other across the disk-shaped material, movable in the vertical direction and radial direction of the disk-shaped material, and rotationally driven in a predetermined direction. a pair of web forming rolls, which are provided on a side substantially opposite to the outer diameter forming roll with the inner diameter forming roll as the center, and are rotationally driven while sandwiching the outer circumference of the disc-shaped material from above and below; A pair of rim forming rolls that are movable in the radial direction of the disc-shaped material, rotate freely while contacting the outer peripheral end surface of the disc-shaped material, and are also movable in the radial direction of the disc-shaped material. Using a forming device equipped with a guide roll provided in such a manner, the outer diameter surface and inner diameter surface of the disk-shaped material are sandwiched between the inner diameter forming roll and the outer diameter forming roll. At the same time, the pair of web-forming rolls are moved in the radial direction of the disc-shaped material to roll-form the web part of the disc-shaped material, and the pair of rim-forming rolls A method for forming a material formed by rolling the rim portion of the disc-shaped material.