JP5663932B2 - Press roll forming equipment - Google Patents

Description

  The present invention relates to a press roll forming apparatus.

2. Description of the Related Art Conventionally, press roll apparatuses that form a piece of material by pressing the piece of material against a mold using a roll have been widely used.
For example, most of the stationary blades used in a compressor of a jet engine are a kind of press roll forming apparatus, and are manufactured by a press roll forging apparatus that performs forging simultaneously with forming (Patent Documents 1 and 2).

  For example, in the press roll forging device disclosed in Patent Documents 1 and 2, a roll receiving a load by a hydraulic device or the like is movable while rotating, and the roll is moved and gripped on the front side of the mold. The piece of material is formed by pressing the piece of material to be supported against the mold with a roll.

U.S. Pat. No. 4,483,168 US Pat. No. 5,600,995

By the way, in a press roll forging device, a material piece may be divided into a plurality of times and formed. In such a case, the roll is repeatedly pressed against the material piece.
However, each time the material piece is pressed by the roll, it extends and deforms. For this reason, conventionally, the position of a metal mold | die is moved according to the elongation of a material piece, and the operation | work which matches the molding groove part of a metal mold | die with the product position of a material piece is performed.

  However, in order to move the position of the die in the conventional press roll forging device, it is necessary to remove the die from the press roll forging device and install a spacer. For this reason, in the conventional press roll forging apparatus, it took a long time to move the mold.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to simplify the movement of a mold in the roll moving direction in a press roll forming apparatus.

  The present invention adopts the following configuration as means for solving the above-described problems.

  1st invention is a press roll molding apparatus which shape | molds the said material piece by pressing a material piece with respect to a metal mold | die with a roll, Comprising: The slide means which can slide the said metal mold | die to the moving direction of the said roll A configuration of providing is adopted.

  According to a second invention, in the first invention, the slide means has a first block having an engaging groove that extends horizontally and inclined with respect to the moving direction of the roll, and the mold. A second block that is connected and fixed from the moving direction of the roll and is slidably fitted in the engaging groove, and a drive that moves the second block in a direction that is horizontal and orthogonal to the moving direction of the roll The configuration of providing means is employed.

  According to a third invention, in the second invention, the drive means is a servo motor.

  According to the present invention, the mold can be slid in the moving direction of the roll by the sliding means, so that it is not necessary for the operator to remove the mold, and the moving operation of the mold in the roll moving direction can be simplified. Become.

It is sectional drawing which shows schematic structure of the press roll forging apparatus in one Embodiment of this invention. It is a top view of the metal mold | die slide mechanism with which the press roll forging apparatus in one Embodiment of this invention is provided.

  Hereinafter, an embodiment of a press roll forming apparatus and a press roll forming method according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is appropriately changed in order to make each member a recognizable size. Moreover, in the following description, a press roll forging apparatus will be described as an example of the press roll forming apparatus of the present invention.

FIG. 1 is a cross-sectional view showing a schematic configuration of a press roll forging device S1 of the present embodiment.
As shown in FIG. 1, the press roll forging device S1 of this embodiment includes a base 1, a guide rail 2, a mold 3, a gripping portion 4, a bottom roll 5 (roll), a top roll 6, A support member 7, a mold slide mechanism 8 (slide means), an upper block 9, a hydraulic device 10, a roll slide drive unit 11, and a control device 12 are provided.
In the following description, in the moving direction L of the bottom roll 5, the front side where the bottom roll 5 proceeds when forming the material piece X is defined as the downstream side, and the upstream side on the opposite side.

The base 1 is provided with the 1st hollow 1a which accommodates the metal mold | die 3 in the center part seeing from the moving direction L of the bottom roll 5 shown in FIG. The first recess 1a is set in a rectangular shape with an opening on the downstream side in the movement direction L when viewed from above.
Moreover, the base 1 is provided with the 2nd hollow 1b which accommodates rotatably the grip nail | claw 4a of the grip part 4 mentioned later in the upstream of the 1st hollow 1a in the moving direction L of the bottom roll 5. As shown in FIG. Of the wall surfaces forming the depression 1b, the downstream wall surface is an inclined surface 1b1 for forming a molding posture (the posture shown in FIG. 1) in which the material piece X is inclined by contacting the tip of the material piece X. It is said that.
In the base 1, the upper surface 1 c surrounding the first dent 1 a and the second dent 1 b functions as a receiving surface for the bottom roll 5.

The guide rail 2 is installed on the upper surface 1b of the base 1 along the moving direction of the bottom roll 5, and guides the movement of the support member 7 (that is, the movement of the bottom roll 5 and the top roll 6).
The guide rails 2 are respectively installed on both sides with the first recess 1a (that is, the mold 3) as the center.

The mold 3 is accommodated in the recess 1 a so that the upper surface 3 b is a receiving surface of the bottom roll 5 and is flush with the upper surface 1 b of the base 1.
The mold 3 includes a molding groove 3a for molding the material piece X into a target shape. The molding groove 3 a is formed so as to be exposed on the upper surface 3 b of the mold 3.
And the material piece X is shape | molded by the material piece X being pressed and filled to the said shaping | molding groove part 3a.

The grip portion 4 is for gripping and supporting the material piece X, and includes a grip claw 4a and a grip claw drive portion 4b.
The gripping claw 4a is accommodated in the second recess 1b of the base 1 and grips by gripping the material piece X between the inclined surface 1b1 of the second recess 1b (posture shown in FIG. 1) ) And an open posture in which the material piece X can be attached and detached with a large gap between the inclined surface 1b1 and the inclined surface 1b1. Note that the upper surface 4a1 of the gripping claw 4a is configured as a surface that is flush with the upper surface 1c of the base 1 and is a receiving surface of the bottom roll 5 when the gripping claw 4a is in the gripping posture.
The gripping claw drive unit 4b generates a driving force for rotating the gripping claw 4a, and is connected to the gripping claw 4a.

The bottom roll 5 is in contact with the base 1, the mold 3 or the gripping claws 4a, and is disposed so as to be able to roll with the upper surface 1c of the base 1, the upper surface 3b of the mold 3 or the upper surface 4a1 of the gripping claws 4a as a receiving surface. Then, the bottom roll 5 forms the material piece X by pressing the material piece X against the mold 3.
The top roll 6 is disposed above the bottom roll 5 in contact with the bottom roll 5. The top roll 6 has a cylindrical shape similar to that of the bottom roll 5, and the lower coaxial is arranged parallel to the rotation axis of the bottom roll 5 and spaced apart in the vertical direction. The upper portion of the top roll 6 is in contact with the lower surface 9 a of the upper block 9, and the bottom roll 5 can be rotated by rotating between the upper block 9 and the bottom roll 5.

The support member 7 integrally supports the bottom roll 5 and the top roll 6 and is slidably fitted to the guide rail 2.
The support member 7 is connected to the roll slide drive unit 11, and moves along the guide rail 2 when a driving force is transmitted from the roll slide drive unit 11. As a result, the bottom roll 5 and the top roll 6 pivotally supported by the support member 7 move along the guide rail 2 while rotating. That is, in the press roll forging device S <b> 1 of this embodiment, the support member 7 moves as the bottom roll 5 and the top roll 6 move.

  The mold slide mechanism 8 slides the mold 3 in the moving direction L of the bottom roll 5. FIG. 2 is a top view of the mold slide mechanism 8. As shown in this figure, a connecting block 8a (second block), a moving block 8b (first block), a rail 8c, and a servo motor 8d (driving means) are provided.

  The connection block 8a, the moving block 8b, and the rail 8c are accommodated and disposed in an accommodation groove 1d provided in the base 1.

The connection block 8a is connected and fixed to the mold 3 from the moving direction L of the bottom roll 5. The connecting block 8a is slidably engaged with the engaging groove 8b1 of the moving block 8b.
As shown in FIG. 2, the connecting block 8 a is arranged with a gap S therebetween and is movable with respect to the moving direction L of the bottom roll 5.

  The moving block 8b has an engaging groove 8b1 extending inclining with respect to the moving direction L of the bottom roll 5, and is slidably fitted to the rail 8c so that the inside of the receiving groove 1d is in the rail 8c. It is possible to move along.

  The rail 8 c is laid in the housing groove 1 d and extends along a direction orthogonal to the moving direction L of the bottom roll 5.

  The servo motor 8d is connected to the moving block 8b, and moves the moving block 8b in a direction orthogonal to the moving direction L of the bottom roll 5 by generating a driving force transmitted to the moving block 8b.

In such a mold slide mechanism 8, when the driving force generated by the servo motor 8d is transmitted to the moving block 8b and the moving block 8b moves, the receiving groove 1d is inclined with respect to the moving direction L of the bottom roll 5. Therefore, the connecting block 8a engaged with the receiving groove 1d moves in the moving direction L.
In the press roll forging device S1 of the present embodiment, the engagement groove 8b1 is inclined to the upstream side in the movement direction L as it is far from the servo motor 8d side, and the movement block 8b is far from the servo motor 8d. By moving to the left side in FIG. 2, the mold 3 moves to the downstream side in the moving direction L via the connecting block 8a, and the moving block 8b is closer to the servo motor 8d (to the right side in FIG. 2). By moving, the mold 3 moves to the upstream side in the moving direction L via the connecting block 8a.

  Returning to FIG. 1, the upper block 9 is disposed above the top roll 6, and the lower surface 9 a is parallel to the upper surface 1 c of the base 1, the upper surface 3 b of the mold 3, and the upper surface 4 a 1 of the gripping claws 4 a. A hydraulic device 10 is connected to the upper block 9 from the upper surface side.

  The hydraulic device 10 applies a load to the bottom roll 5 via the upper block 9 and the top roll 6 by pressing the upper block 9 from above.

The roll slide drive unit 11 rotates the bottom roll 5 by pushing and pulling the support member 7.
For example, in the arrangement relationship of FIG. 1, when the roll slide drive unit 11 pushes the support member 7, the bottom roll 5 moves toward the left side of the paper while rotating, and the roll slide drive unit 11 moves the support member 7. By pulling, the bottom roll 5 moves toward the right side of the sheet while rotating.

  The control device 12 controls the entire operation of the press roll forging device S1 of the present embodiment, and includes a gripping claw drive unit 4b, a mold slide mechanism 8, a hydraulic device 10, a roll slide drive unit 11, and further necessary. Accordingly, it is electrically connected to an external device.

  In the press roll forging device S1 of the present embodiment, the control device 12 presses the material piece X against the mold 3 a plurality of times. That is, the control device 12 repeatedly rotates the bottom roll 5.

And the control apparatus 12 has memorize | stored how much the metal mold | die 3 is moved by the metal mold | die slide mechanism 8 at what timing in the middle of shaping | molding of the material piece X. FIG. The movement timing and movement amount of the mold 3 stored in the control device 12 are obtained in advance so that the material piece X is optimally molded based on experiments and simulations using the material piece X.
For example, in the case of molding by pressing the material piece X against the mold 3 three times, the mold 3 is not moved during the first and second pressing processes, and the mold is moved in the third pressing process. When it is determined by experiment or simulation that the mold 3 can be optimally formed by moving the mold 3 to the downstream side in the moving direction L by 2 mm or 3 mm, it is based on the result. The program is stored in the control device 12, and the control device 12 controls the mold slide mechanism 8 based on the program.

  Further, the press roll forging device S1 of the present embodiment includes a supply device that supplies lubricating oil to the forming region of the material piece X and the moving region of the bottom roll 5 and the top roll 6, and lubricates from a nozzle (not shown). Spout oil.

Next, operation | movement of the press roll forging apparatus S1 of this embodiment comprised in this way is demonstrated.
In the following description, the main body that performs the operation of the press roll forging device S1 is the control device 12. And the control apparatus 12 operate | moves based on the signal input from the operation panel and sensor which are not illustrated, and the program previously integrated.

First, when the material piece X is inserted into the first recess 1b by the operator, the control device 12 controls the gripping claw driving unit 4b to rotate the gripping claw 4a to the gripping posture, thereby gripping the material piece X. And support.
Subsequently, the control device 12 controls the hydraulic device 10 to apply a load to the bottom roll 5.
Then, the control device 12 controls the roll slide drive unit 11 to rotate and move the bottom roll 5, and the material piece X is formed by pressing the material piece X against the mold 3 with the bottom roll 5. .
Further, the control device 12 repeats the movement of the bottom roll 5 to repeat the pressing operation of the material piece X against the mold 3, and moves the mold 3 by controlling the mold slide mechanism 8 as necessary. To do.

  According to the press roll forging device S1 of this embodiment, since the mold 3 can be slid in the moving direction L of the bottom roll 5 by the mold slide mechanism 8, it is not necessary for the operator to remove the mold 3. The movement work of the mold 3 in the movement direction L of the bottom roll 5 can be simplified.

Further, in the press roll forging device S1 of the present embodiment, the mold slide mechanism 8 includes a moving block 8b having an engaging groove 8b1 that extends horizontally and inclined with respect to the moving direction L of the bottom roll 5, A connecting block 8a that is connected and fixed to the mold 3 from the moving direction L of the bottom roll 5 and is slidably fitted in the engaging groove 8b1, and the connecting block 8a is horizontally and in the moving direction of the bottom roll 5. And a servo motor 8d that moves in a direction orthogonal to L.
By adopting such a configuration, the moving operation of the mold 3 can be simplified without complicating the device configuration.

  Further, in the press roll forging device S1 of the present embodiment, the moving block 8b is moved using the servo motor 8d. For this reason, the moving amount of the moving block 8b can be finely adjusted, and the position of the mold 3 can be finely adjusted.

  As mentioned above, although preferred embodiment of this invention was described referring drawings, this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

For example, the configuration of the mold slide mechanism 8 in the above embodiment is an example, and other configurations may be employed.
Specifically, a hydraulic cylinder, an air cylinder, or the like may be used as the driving means of the mold slide mechanism 8, or a configuration using a single block instead of the connecting block 8a and the moving block 8b may be used.

Moreover, in the said embodiment, the structure using a metal mold | die was demonstrated.
However, the present invention is not limited to this, and a mold made of a material other than metal may be used instead of the mold.

  S1: Press roll forging device (press roll forming device), 1 ... Base, 1a ... First recess, 1b ... Second recess, 1b1 ... Inclined surface, 1c ... Upper surface, 1d ... Housing groove, 2 ... guide rail, 3 ... mold, 3a ... molding groove, 3b ... top surface, 4 ... gripping part, 4a ... gripping claw, 4a1 ... top surface, 4b ... gripping claw drive part, 5 ... ... bottom roll (roll), 6 ... top roll, 7 ... support member, 8 ... mold slide mechanism (slide means), 8a ... connecting block (second block), 8b ... moving block (first Block), 8b1 ... engagement groove, 8c ... rail, 8d ... servo motor (drive means), 9 ... upper block, 9a ... lower surface, 10 ... hydraulic device, 11 ... roll slide drive unit, 12 ... Control device, X ... Material piece

Claims (3)

This is a press roll forming apparatus that forms a material piece into a stationary blade used in a jet engine by pressing the material piece fixed to the front of the mold by a gripping portion with a moving roll against the mold a plurality of times. And
A press roll forming apparatus, comprising: slide means capable of sliding the mold in the moving direction of the roll when the material piece is not pressed against the mold. The sliding means is
A first block having an engaging groove that extends horizontally and inclined with respect to the moving direction of the roll;
A second block connected and fixed to the mold from the moving direction of the roll and slidably fitted in the engagement groove;
The press roll forming apparatus according to claim 1, further comprising: a driving unit that moves the second block in a direction that is horizontal and perpendicular to a moving direction of the roll.   3. The press roll forming apparatus according to claim 2, wherein the driving means is a servo motor.

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