JP3139824U - Material transfer device in multi-stage forging machine - Google Patents

Abstract

A movable frame and a driving means are automatically separated or connected in response to a swing of a support frame supporting a movable frame to which a material transfer chuck is attached to an operating position or a non-operating position. To do.
A drive rod 22 that is moved in the moving direction of the movable frame 14 by the drive means 20 is provided at a connecting portion between the movable frame 14 and the drive means 20 of the material transfer device in the multistage forging machine 1. The front end portion of 22 and one end portion of the movable frame 14 are overlapped, and a block-like engagement body 21 having an opening hole whose bottom surface opens in a T-shape is fixed to the movable frame side in the overlap portion. In addition, a headed connecting shaft portion 23 that can automatically engage and disengage with respect to the opening hole portion by the swinging motion of the movable frame 14 is provided at the distal end portion of the drive rod 22 that overlaps with the engaging body 21.
[Selection] Figure 2

Description

  The present invention relates to a material transfer device in a multistage forging machine, and more particularly to a structure of a connecting portion that connects a material transfer device and a driving means for reciprocatingly driving the material transfer device at a predetermined interval.

Technical background

  2. Description of the Related Art Conventionally, a multistage forging machine that forms parts of various shapes such as bolts and nuts is equipped with a material transfer device for sequentially transferring a material to a position in front of the axial center of each die.

  This material transfer device is normally mounted on a machine base above the position where each die is disposed, and, if necessary, the support frame is configured to be movable rearward and upward with the rear end as a center, and a support frame. The frame has a movable frame that is supported so that it can reciprocate in the direction in which the dies are juxtaposed, and has a plurality of material transfer chucks that clamp the material, and is connected to one end of the movable frame such as bolts and nuts By driving a drive rod having a tip pivotally attached via a means at a predetermined interval, the movable frame is reciprocated so that each material transfer chuck attached to the movable frame has an axis center of an adjacent die. It is configured to reciprocate between front positions.

  By the way, when exchanging, checking and adjusting the material transfer chuck in the material transfer apparatus as described above, or when exchanging, checking and adjusting the die and punch, a movable frame to which a plurality of material transfer chucks are attached. The support frame for supporting the substrate is rotated rearward and upward with the rear end as the center, so that the material transfer chuck or die or punch can be easily replaced, inspected and adjusted.

  However, the movable frame and the drive rod that reciprocates the movable frame are connected by the connecting means. Therefore, when the support frame is rotated rearward and upward as described above, the movable frame and the drive rod by the connecting means are It is necessary to separate the movable frame and the drive rod from each other and to connect the movable frame and the drive rod again by the coupling means after inspection and adjustment of the material transfer chuck or die and punch. . For this reason, the operation of separating and connecting the movable frame and the drive rod is very troublesome and takes a long time, and there is a problem that the workability is remarkably lowered.

  Therefore, the present invention is a case where the support frame supporting the movable frame to which the material transfer chuck is attached is turned back and up for the material transfer chuck or die / punch replacement, inspection, adjustment, etc. In addition, the movable frame and the driving means can be quickly and easily separated without requiring complicated work, and when the movable frame and the driving means are connected again, the multi-stage can be quickly and easily connected. It is an object of the present invention to provide a material transfer device in a forging machine.

  In order to solve the above problems, the present invention provides a plurality of dies arranged side by side on an end surface of a machine base, and a plurality of punches arranged on the front surface of a ram that moves forward and backward toward the end surface so as to face each die. A plurality of material transfer chucks for sequentially transferring the material to a plurality of forging stations composed of opposing dies and punches, and a movable frame that reciprocates between the adjacent material transfer chucks and the adjacent die. The movable frame is supported by a reciprocating mechanism so that the movable frame can be reciprocated, and the movable frame can be swung so as to be retracted to the upper non-operating position, and the movable frame is synchronized with the forward and backward movement of the ram. A reciprocating drive means, and a material transfer device in a multistage forging machine, wherein the movable frame is connected to the connecting portion between the movable frame and the drive means by the drive means. A driven member that is moved in the moving direction is provided, the tip of the driven member and one end of the movable frame are overlapped, and an opening hole portion whose bottom surface opens in a T shape on the movable frame side in the overlapped portion is provided. A head and shaft that can be engaged and disengaged automatically with respect to the opening hole by the swinging motion of the movable frame at the tip of the driven member that overlaps with the engaging body is fixed. It is characterized in that a headed connecting shaft portion is formed.

  According to the above configuration, the support frame that supports the movable frame to which the material transfer chuck is attached is rotated backward and upward to replace the material transfer chuck or the die and punch, check, and adjust. In this case, by moving the movable frame to the upper non-operating position, the engagement body having the T-shaped opening hole portion is automatically detached from the headed connecting shaft portion. The frame and the driving means are separated. In addition, after replacing, checking and adjusting the material transfer chuck or die / punch, the movable frame is moved again from the non-operating position to the operating position, so that the engagement body having the T-shaped opening hole is connected to the head. By automatically engaging with the shaft portion, the movable frame and the driving means are quickly and easily connected.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 are a front view and a plan view of a main part of a multistage forging machine equipped with the material transfer device of the present invention, and a predetermined position of a machine base 2 of the forging machine 1 is as follows. A die block 3 is disposed, and a plurality of dies 4... 4 are fixed to the die block 3 at regular intervals. Further, the same number of punches 6... 6 as each die 4 are arranged on the front surface of the ram 5 that moves forward and backward toward each die 4 so as to face each die 4. A raw material (not shown) is forcibly and progressively stepped between the punches 6 moved forward and backward by the ram 5 and the die 4.

  A supply quill 7 for supplying the wire A in front of the die block 3 is disposed on one side of the die block 3, and the wire A pushed forward from the supply quill 7 is moved by the cutter mechanism 8. By cutting, a cutting material having a predetermined size is formed.

  Further, a material transfer device 10 is provided above the die block 3, and this material transfer device 10 is supported by a support frame 11 placed on the machine base 2 and a front portion of the support frame 11. The sliding rod 12, a pair of sliding bodies 13, 13 slidably supported by the sliding rod 12, and fixed to the front portion of these sliding bodies 13, can reciprocate in the direction in which the dies 4 are juxtaposed. A movable frame 14 and material transfer chucks 15... 15 fixed on the front surface of the movable frame 14 at the same interval as the dies 4 and as many as the dies 4. Yes. Further, a pair of arm portions 16, 16 extending rearward are provided at the rear portion of the support frame 11, and the rear end portions of the arm portions 16, 16 are disposed at the rear of the machine base 2. 17 is fixed to each. Therefore, when the support shaft 17 is rotated in a predetermined direction by an appropriate drive device (not shown) such as a motor, the pair of arm portions 16 and 16 fixed to the support shaft 17 are rotated rearward and upward. As shown in FIG. 3, the entire material transfer device 10 including the support frame 11 and the movable frame 14 is in a retracted state in which it stands up.

  Servo motors 18... 18 for opening and closing each material transfer chuck 15 are disposed above the support frame 11, and a rocker arm (not shown) is provided on the tip shaft portion of the servo motor 18. The tip portions of the respective rocker arms are respectively engaged with the lifting rod members 19 at the upper end portions of the respective material transfer chucks 15. As a result, the rod members 19 are driven in the vertical direction as the rocker arm swings up and down by the drive of the servo motor 18 so that the respective material transfer chucks 15 are opened and closed. .

  The movable frame 14 is driven to reciprocate between the adjacent dies 4 in synchronism with the advancing and retreating operation of the ram 5, and the connecting portion between the movable frame 14 and the driving means 20 for reciprocating the movable frame 14 is next. It is configured as follows.

  That is, as shown in FIGS. 4 to 7, a block-like engaging body 21 having an opening hole 21 a that opens downward in a T-shape is fixed to the front surface of one end portion of the movable frame 14, while the driving means 20. Thus, a drive rod (driven member) 22 reciprocated in the moving direction of the movable frame 14 is provided, and the tip end portion of the drive rod 22 is overlapped with the engaging body 21. A headed connecting shaft portion 23 including a head portion 23a and a shaft portion 23b that can be inserted into the opening hole portion 21a that opens in a T-shape is provided at the distal end portion of the drive rod 22 in the overlap portion.

  Thus, by moving the movable frame 14 from the non-operating position to the operating position, the engaging body 21 having the T-shaped opening hole 21a is automatically engaged with the headed connecting shaft portion 23. The movable frame 14 and the driving means 20 are automatically connected. Further, by moving the movable frame 14 to the upper non-operating position, the engaging body 21 having the T-shaped opening hole 21a is automatically detached from the headed connecting shaft portion 23. The movable frame 14 and the driving means 20 are separated.

  As shown in FIGS. 8 and 9, the driving means 20 includes a rack 24 that is interlocked with the drive system of the ram 5 and moves forward and backward, a pinion gear 25 that meshes with the rack 24 at one end, and a swing at the other end. A rotating shaft 27 having a moving arm 26, a driving rod 22 supported by a sliding member 30 moving on two sliding rods 28 and 29 and reciprocated in the moving direction of the movable frame 14, and a driving rod 22 A rear end 22a and a connecting rod 31 connected to the swing arm 26 are provided.

  As a result, when the ram 5 is driven, the rack 24 advances and retreats at a predetermined timing in synchronism with this. As the rack 24 advances and retreats, the rotating shaft 27 rotates together with the pinion gear 25 to swing the swing rod 26, and the swing rod 26 swings the drive rod 22 through the connecting rod 31 to move the movable frame 14. It will be reciprocated in the direction of movement. As a result, the movable frame 14 is reciprocated via the headed connecting shaft portion 23 at the tip of the drive rod 22.

  Next, the operation of the multistage forging machine equipped with the material transfer device of the present invention configured as described above will be described.

  In order to replace, check, or adjust the material transfer chuck 15 or the die 4 or the punch 6, the support frame 11 that supports the movable frame 14 to which the material transfer chuck 15 is attached is rotated rearward and upward, and the imaginary view of FIG. When the movable frame 14 is moved to the upper non-operating position in the retracted state indicated by the line, the engaging body 21 having the T-shaped opening hole 21a is automatically detached from the headed connecting shaft portion 23. Will do. Thereby, the movable frame 14 and the drive means 20 are separated easily and quickly.

  Further, after the material transfer chuck 15 or the die 4 or the punch 6 is exchanged, inspected, or adjusted, the movable frame 14 is rotated again to move from the non-operation position indicated by the phantom line to the operation position indicated by the solid line in FIG. Accordingly, the engaging body 21 having the T-shaped opening hole 21a on the movable frame 14 side automatically engages with the headed connecting shaft portion 23. As a result, the movable frame 14 and the driving means 20 are simply and quickly connected.

  It is a front view of the principal part of the forging machine equipped with the raw material transfer apparatus which concerns on this invention.   It is a schematic plan view of the forging machine.   It is a schematic side view of the same forging machine.   It is a partially cutaway enlarged front view of the main part.   It is a front view of the principal part.   It is a bottom view of the principal part.   It is a side view of the principal part.   It is a top view of the principal part of the drive means.   It is a front view of the principal part of the drive means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multistage forging machine 2 Machine stand 4 Die 5 Ram 6 Punch 10 Material transfer apparatus 14 Movable frame 20 Drive means 21 Engagement body 21a Opening hole 22 Drive rod (driven member)
23 Head-attached connecting shaft portion 23a Head portion 23b Shaft portion

Claims (1)

  A plurality of dies arranged side by side on the end surface of the machine base, a plurality of punches arranged to face each die on the front surface of the ram moving forward and backward toward the end surface, and each facing die and punch A plurality of material transfer chucks for sequentially transferring materials to a plurality of forging stations, a movable frame that reciprocates between these material transfer chucks and an adjacent die, and a reciprocating mechanism that reciprocates the movable frame. A multi-stage having a support frame that is movably supported and swingable so that the movable frame can be retracted to an upper non-operating position, and a driving means that reciprocates the movable frame in synchronism with the forward and backward movement of the ram. A material transfer device in a type forging machine, wherein a driven member that is moved in the moving direction of the movable frame by the driving means is provided at a connecting portion between the movable frame and the driving means. A front end portion of the driven member and one end portion of the movable frame are overlapped, and a block-like engagement body having an opening hole portion whose bottom surface is opened in a T shape is fixed to the movable frame side in the overlap portion. And a headed connecting shaft portion including a head portion and a shaft portion that can be automatically engaged and disengaged with respect to the opening hole portion by a swinging operation of the movable frame at the distal end portion of the driven member overlapping the engaging body. The material transfer apparatus in the multistage type forging machine characterized by the above-mentioned.

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