JP2008018445A - Apparatus for shaping workpiece corner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for shaping a workpiece corner with which accurate working is performed on the workpiece by keeping the position of a forming roller to a die at the proper position. <P>SOLUTION: In the apparatus 3 for shaping the workpiece corner with which a side wall part W7 which rises continuously along the adjacent part W5 of the corner part is formed by causing plastic deformation in the corner part of a planar workpiece W and a place in the adjacent part W5 of this corner part which is a part in the vicinity of the corner part by cooperation of a die 5 with a shaping roller 7, the apparatus has a shaping roller centering mechanism 41 for automatically adjusting the posture of the shaping roller 7 by the force which is received from the workpiece W when shaping the workpiece W. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for forming a corner portion of a workpiece, and more particularly to an apparatus for forming a standing upright portion by a plastic working at a corner portion of a plate-like workpiece.

2. Description of the Related Art Conventionally, for example, as a device for forming a corner of a plate material, a corner forming machine that performs corner forming by cooperation of a die and a forming roller is known (see, for example, Patent Document 1).
JP 2000-24717 A

  By the way, in the conventional corner molding machine (corner forming device for workpieces), when the thickness of the workpiece is changed or when the forming tool (molding roller) is replaced with the die, the die and the molding roller Good molding cannot be performed without positioning the die at an appropriate position and adjusting the gap between the die and the molding roller.

  Therefore, in the conventional corner molding machine, the gap (the gap into which the workpiece W enters during the molding process) is adjusted by moving and fixing at least one of the die and the molding roller using shims and wedges. ing.

  However, it is difficult to adjust the gap between the molding roller R1 and the die D1 to an optimum gap for the molding process, and as shown in FIG. 25 (a diagram showing the state of the gap between the die D1 and the molding roller R1), the die D1 The angle of the forming roller R1 with respect to the angle may be inclined by Δt1, and the parallelism of the gap between the die D1 and the forming roller R1 may not be maintained.

  In order to adjust the above-mentioned cone, the front-rear direction of the forming roller R1 (up and down direction in FIG. 25) and the posture of the forming roller R1 (when rotating around an axis extending perpendicular to the paper surface of FIG. 25). Posture) must be adjusted, which is difficult.

  In addition, in a structure that uses shims and wedges to make adjustments, it is necessary to actually rework and form the workpiece to determine whether or not the position of the forming roller R1 relative to the die D1 is appropriate. Takes time. Therefore, when there is variation in the thickness of the material (work W), it is practically impossible to adjust the gap.

  Further, as shown in FIG. 26 (a diagram showing a state of a gap between the die D1 and the forming roller R1), the position of the forming roller R1 in the extending direction of the rotation center axis CL1 of the forming roller R1 (Δt3 is set to 0). Is not considered in the conventional corner molding machine, and it is difficult to make the gaps Δt5 and Δt7 between the die D1 and the molding roller R1 uniform.

  The present invention has been made in view of the above problems, and by the cooperation of the die and the forming roller, the corner of the plate-like workpiece and the vicinity of the corner, which is the vicinity of the corner, are provided. In the workpiece corner forming apparatus that performs plastic deformation and forms a side wall portion that rises continuously along the vicinity of the corner portion, by maintaining the position of the forming roller with respect to the die at an appropriate position, the workpiece can be accurately An object of the present invention is to provide a workpiece corner forming apparatus capable of processing.

  According to the first aspect of the present invention, by the cooperation of the die and the forming roller, plastic deformation is caused at the corner portion of the plate-like workpiece and the portion near the corner portion, which is a portion in the vicinity of the corner portion. In a workpiece corner forming apparatus that forms a side wall portion that rises continuously along the vicinity of the portion, a forming roller adjustment that automatically adjusts the posture of the forming roller by the force received from the workpiece when the workpiece is formed. It is the corner | angular part shaping | molding apparatus of the workpiece | work which has a core mechanism.

  According to a second aspect of the present invention, there is provided a base member for installing a die having a plane on which a plate-like workpiece is placed and having corners formed on the edge of the plane, and the base member being placed on the base member A movable member that is movable in a direction intersecting with the plane of the die, and is provided rotatably on the movable member, and in cooperation with the die by the movement of the movable member, the corner and the corner A part of the workpiece that exists in the vicinity of the corner, which is a part of the vicinity of the part, continuously from the part of the workpiece in contact with the plane of the die along the vicinity of the corner at a predetermined angle. A forming roller that performs plastic working to form a rising side wall, and a forming roller alignment that automatically adjusts the posture of the forming roller by the force received from the work when the forming roller is moved to form the work A corner molding device of a work and a structure.

  According to a third aspect of the present invention, there is provided a base member for installing a die having a plane on which a plate-like workpiece is placed and corners are formed on the edge of the plane, and the base member is installed on the base member. When viewed from a direction perpendicular to the plane of the die installed on the base member and a movable member that is movable in a direction substantially perpendicular to the plane of the die, it extends in the extending direction of the plane of the die. And is provided rotatably on the moving member with an axis away from the corner of the die as a center of rotation, and a predetermined portion of the corner of the die and a portion in the vicinity of the corner. A molding roller formed into a shape having a surface obtained by rotating an edge line, which is a line extending substantially in parallel with a slight distance, about the rotation center axis, and the molding Move the roller to form the workpiece Occasionally, a corner molding device of a work and a forming roller centering mechanism for automatically adjusting the orientation of the forming roller by the force received from the workpiece.

  According to a fourth aspect of the present invention, in the corner forming apparatus for a workpiece according to the third aspect, the plane of the die installed in the base member is extended in the extending direction while maintaining the posture of the forming roller. A workpiece corner forming apparatus having a forming roller adjusting mechanism capable of moving and positioning the forming roller in a direction approaching and separating from the die.

  According to a fifth aspect of the present invention, in the workpiece corner forming apparatus according to the third or fourth aspect, the alignment mechanism extends substantially in the center of the forming roller in the moving direction of the moving member. When viewed from a direction orthogonal to the plane of the die installed on the base member, an intermediate member that rotates with respect to the moving member around an axis that is located, The workpiece corner forming apparatus is configured to include an urging means for urging the intermediate member so that an edge of the forming roller is parallel to the edge.

  A sixth aspect of the present invention is the workpiece corner forming apparatus according to any one of the third to fifth aspects, wherein the forming roller is slightly movable in the extending direction of the rotation center axis. It is the corner | angular part shaping | molding apparatus of the workpiece | work provided.

  The invention described in claim 7 is the workpiece corner forming apparatus according to any one of claims 2 to 6, wherein the workpiece is placed on the die and formed by movement of the forming roller. It is a workpiece | work corner | angular part shaping | molding apparatus which has a cutting means which cut | disconnects the surplus part of this using the force by the movement of the said moving member.

  The invention according to claim 8 is a plate-like shape which is provided integrally with the frame of the pressurizing device and which has a flat surface on which a metal thin plate-like workpiece is placed, and which has corners at the edges of the flat surface. A base member that integrally or directly installs the die of the die, and a base member that is integrally installed on the movable body of the pressurizing device, separated from the base member and the die, and the die installed on the frame. A moving member that is movable in a direction orthogonal to a plane; and the moving member that is supported on the moving member on a side away from the die, and that is installed in the base member in a direction orthogonal to the moving direction of the moving member. The bisection straight line, which is a straight line that bisects the angle of the corner of the die, can be moved and positioned with respect to the moving member in the extending direction, and a central axis exists on the bisection straight line. Is formed by part of the side of the cylinder A first intermediate member provided with a recess opposite the corner of the die, and the corner between the corner of the die installed on the base member and the first intermediate member away from the corner The second intermediate member is engaged with the first intermediate member and rotates about the central axis of the concave portion of the first intermediate member by making surface contact with the concave portion of the first intermediate member. An intermediate member and a shaft extending in a direction perpendicular to the bisector line extending in a plane extending direction of the die installed on the base member and extending on a side away from the die The rotation axis is the center of rotation, and the second intermediate member is rotatably provided. The corner of the die and a portion near the corner, which is a portion near the corner, and a predetermined slight amount An edge line, which is a line extending substantially in parallel while maintaining a distance, is centered on the rotation center axis. A forming roller having a substantially conical shape in contact with each other's apex, and a die installed on the base member with the forming roller in between Is a long hole provided on the opposite side and penetrating the moving member and the first intermediate member, and extending in the circumferential direction of the concave portion of the cylindrical side surface of the first intermediate member. The base end portion is provided integrally with the second intermediate member, and the distal end side portion provided with the flange portion protrudes from the moving member, and the second intermediate member A pulling member that can swing in the elongated hole in response to the rotation, and a flange portion of the pulling member and the second intermediate member so that the second intermediate member is pressed against the recess of the first intermediate member. Workpiece corner forming apparatus having elastic body provided between moving member It is.

According to a ninth aspect of the present invention, there is provided the workpiece corner forming apparatus according to the eighth aspect, wherein the first intermediate member is elastic with a fluid pressure cylinder. 11. A workpiece corner forming apparatus configured to move using a body and automatically adjust a position of the first intermediate member by a force received from the workpiece when the workpiece is formed. In the workpiece corner forming apparatus according to claim 8 or 9, the surplus part of the workpiece placed on the die and formed by the movement of the forming roller is cooperated with the die. A plate-shaped cutting blade for working and shearing is installed, and a shearing moving member movable in a direction approaching and separating from a die installed on the base member, and the shearing moving member, Shear An actuator in which a cutting blade installed on the moving member moves from a position away from the workpiece to a position where the cutting blade contacts the workpiece, a follower of a cam provided integrally with the shearing moving member, and the moving member And a cam motion node that engages with a follower node of the cam and moves the shearing moving member so as to shear the surplus portion of the work with the shearing blade that is provided integrally with the work and is in contact with the work The corner | angular part shaping | molding apparatus of the workpiece | work which has these.

  According to the present invention, by the cooperation of the die and the forming roller, plastic deformation is caused at the corner of the plate-like workpiece and the vicinity of the corner, which is the vicinity of the corner. In an apparatus for forming a corner portion of a workpiece that forms a side wall portion that continuously rises along the workpiece, the workpiece can be accurately processed by keeping the position of the molding roller with respect to the die at an appropriate position. .

  FIG. 1 is a perspective view showing a schematic configuration of a pressurizing apparatus 1 according to an embodiment of the present invention, and FIG. 4 is a schematic configuration of a workpiece corner forming apparatus 3 installed and used in the pressurizing apparatus 1. FIG.

  For convenience of explanation, in the present embodiment, one direction in the horizontal direction (for example, the left and right direction of the pressurizing device 1 and the corner forming device 3 of the workpiece) is defined as the X-axis direction. A direction perpendicular to the axial direction (for example, the front-rear direction of the pressure device 1 and the corner forming device 3 of the workpiece) is defined as the Y-axis direction, and the vertical direction (vertical direction) is defined as the Z-axis direction.

  The workpiece corner forming device 3 is installed in a pressurizing device (pressing machine) 1 and cooperates with a die 5 and a forming roller (forming tool) 7 as shown in Japanese Patent Laid-Open No. 2000-24717. Similarly, plastic deformation is performed at the corner W1 of the plate-like workpiece W as shown in FIG. 15 and the corner vicinity portion W5 which is the portion W3 in the vicinity of the corner, and the central portion of the plate-like workpiece W is obtained. This is an apparatus for forming a side wall portion (standing portion) W7 that rises substantially at a right angle from W11 along a corner vicinity portion W5.

  More specifically, first, as shown in FIG. 15 (a), four side portions W9 excluding the corner vicinity portion W5 of a metal thin rectangular plate-like member are used by using a vendor or the like. It is bent at a substantially right angle with a predetermined width (height) with respect to the central portion W11.

  And the corner | angular part vicinity W5 of the workpiece | work W like 15 (a) is pinched | interposed with the die | dye 5 and the shaping | molding roller 7, and it shape | molds, and the box-shaped product as shown to FIG.15 (b), (c) is obtained. To form.

  Here, the pressurizing apparatus 1 will be described. The pressurizing device 1 includes a frame 9 formed in, for example, a “C” shape, and a workpiece corner forming device 3 is placed and installed in a lower portion 11 of the recess of the frame 9. ing. The pressurizing device 1 includes a slide member (movable body) 13 that is movable in the Z-axis direction with respect to the frame 9 on the upper side of the concave portion of the frame 9. 7 moves to process the workpiece W described above. In the workpiece corner forming apparatus 3 installed in the pressurizing apparatus 1, a base member 43 (details will be described later) 43 of the workpiece corner forming apparatus 3 is positioned on the lower side, and the workpiece corner forming apparatus 3 moving member. (Details will be described later) 45 is positioned on the upper side, the die 5 is positioned on the front side, and the forming roller 7 is positioned on the rear side of the die 5.

  Here, a mechanism for moving the slide member 13 of the pressure device 1 will be described.

  FIG. 2 is a diagram illustrating a schematic configuration of a mechanism for moving the slide member 13 of the pressurizing device 1.

  An output shaft member 15 is provided on the upper side of the slide member 13 of the pressurizing device 1 so as to be separated from the slide member 13. The output shaft member 15 is rotatably provided on the frame 9 by being supported on the outer peripheral portion, and is connected to a rotation output shaft 19 of a general motor 17 to rotate. Further, the output shaft member 15 includes a hole 21 extending from the lower end of the rotation center axis (axis extending in the Z-axis direction) CL1 toward the upper end of the rotation center axis CL1. In addition, the general motor 17 in which standard specifications are easily available is a motor in which a cylindrical solid rotation output shaft 19 protrudes from a housing 23 and one end of the housing 23.

  The output shaft member 15 is integrally provided with a nut 25 that rotates about the same axis as the rotation center axis CL1. A screw shaft member 27 is screwed to the nut 25. A part of the screw shaft member 27 enters the hole 21 of the output shaft member 15. The screw shaft member 27 moves only in the Z-axis direction without rotating by the rotation of the output shaft member 15. The slide member 13 is movable in the Z-axis direction with respect to the frame 9 via the linear guide bearing 28, is engaged with the screw shaft member 27, and is rotated in the Z-axis direction by the rotation of the output shaft member 15. To move to.

  More specifically, the output shaft member 15 is provided integrally with the large-diameter portion 29 at the cylindrical large-diameter portion 29 and at one end on the upper side in the axial direction of the large-diameter portion 29 and coaxial with the large-diameter portion 29. The cylindrical small-diameter portion 31 is formed. Further, the output shaft member 15 includes a columnar hole 21 extending from the lower end portion of the large diameter portion 29 toward the upper end portion side of the large diameter portion 29 in the central portion. The length of the hole 21 is shorter than the length of the large diameter portion 29. Further, since the outer periphery of the large-diameter portion 29 is supported by a bearing (for example, an angular bearing), the output shaft member 15 rotates around the frame 9 with the axis CL1 as the center of rotation so as not to move in the direction of the axis CL1. It is free.

  The output shaft member 15 is supported by an angular bearing, but instead of the angular bearing, a conical roller bearing, or a combination of a cylindrical roller bearing or a deep groove ball bearing and a thrust bearing may be employed.

  The small-diameter portion 31 is connected to the rotation output shaft 19 of the motor 17 via a connection member such as a coupling 33, and the output shaft member 15 rotates when the rotation output shaft 19 of the motor 17 rotates. It is like that. In addition, as described above, the motor 17 includes the casing 23 and one end of the casing 23 so as to form a solid cylindrical rotation output shaft (a rotation output whose outer diameter is sufficiently smaller than the outer diameter of the casing 23. A commercially available (general; general) motor (for example, servo motor) from which a shaft 19 protrudes, and a housing 23 of the motor 17 is provided integrally with the frame 9. The motor 17 is disposed above the output shaft member 15 with the rotation output shaft 19 facing downward, away from the output shaft member 15, and the rotation center axis CL <b> 1 of the output shaft member 15 and the rotation output shaft 19 of the motor 17. The rotation center axes coincide with each other.

  The nut 25 extends in the direction away from the output shaft member 15 at the lower end portion of the large diameter portion 29 (downward), and is provided integrally with the output shaft member 15. The nut 25 is centered on the same shaft as the shaft CL1. It is designed to rotate. The nut 25 is provided with a flange portion 35 having an outer diameter larger than the inner diameter of the hole 21 of the large diameter portion 29. The flange portion 35 is integrated with the large diameter portion 29 with a fastener such as a bolt. It is attached.

  The screw shaft member 27 and the nut 25 constitute, for example, a ball screw. Further, the outer diameter of the screw shaft member 27 is smaller than the inner diameter of the hole 21 of the output shaft member 15. A nut whose upper end portion in the direction of the axis of the screw shaft member 27 (axis that coincides with the axis CL1 of the output shaft member 15) is located in the hole 21 of the output shaft member 15 and is located on the opposite side to the output shaft member 15. The lower end of the screw shaft member 27 extends in the axial direction from the tip end (lower end) of the shaft 25, and the screw shaft member 27 moves in the direction of the axis CL <b> 1 (up and down direction) together with the slide member 13 by the rotation of the output shaft member 15. It is designed to move linearly.

  The screw shaft member 27 is provided integrally with the slide member 13, for example, and the screw shaft member 27 and the slide member 13 move together.

  The axial length L1 of the screw shaft member 27 is slightly longer than the sum of the depth L3 of the hole 21 of the output shaft member 15 and the axial length L5 of the nut 25. The screw shaft member 27 includes a first position (position shown in FIG. 2) where the screw shaft member 27 is closest to the small diameter portion 31 and a position where the screw shaft member 27 is farthest from the small diameter portion 31. It moves between a certain second position (a position below the position shown in FIG. 2). In the first position, the bottom portion of the hole 21 of the output shaft member 15 (the bottom portion located above the hole 21 in FIG. 2) and the upper end portion of the screw shaft member 27 approach each other, and the output The hole 21 of the shaft member 15 is substantially filled with the screw shaft member 27, and the lower end portion of the screw shaft member 27 and the slide member 13 approach the nut 25.

  In the second position, the bottom of the hole 21 of the output shaft member 15 and the upper end of the screw shaft member 27 are separated from each other, and the upper end of the screw shaft member 27 and the nut 25 approach each other. The screw shaft member 27 is slightly present in the 15 holes 21, and the lower end portion of the screw shaft member 27 and the slide member 13 are separated from the nut 25. Even in the first position and the second position, a part of the screw shaft member 27 is screwed into the nut 25 with the entire length L5 of the nut 25, and between the first position and the second position. The slide member 13 is moved by the stroke S1.

  Here, a modified example of the mechanism for moving the slide member 13 of the pressurizing device 1 will be described.

  FIG. 3 is a diagram schematically showing a modification of the mechanism for moving the slide member 13 of the pressurizing device 1.

  The mechanism shown in FIG. 3 differs from the mechanism shown in FIG. 2 in that a through hole 21A is provided in the output shaft member 15A and the output shaft member 15A is rotated by the motor 17 via gears 37, 39, etc. Is configured in substantially the same manner as the mechanism shown in FIG.

  That is, in the mechanism shown in FIG. 3, the output shaft member 15 </ b> A is composed of a cylindrical large diameter portion 29 and a cylindrical small diameter portion 31, and the large diameter portion 29 and the small diameter portion 31 are arranged in the direction of the axis CL <b> 1. A cylindrical through hole (a through hole having an inner diameter smaller than the outer diameter of the small diameter part 31) 21A extending along the center is provided in the central part. The small diameter portion 31 is integrally provided with a power transmission member such as a gear 37 or a toothed pulley, and a gear 39 or a toothed pulley provided on the rotation output shaft 19 of the motor 17 via the power transmission member. The output shaft member 15 </ b> A is rotated by rotating the rotation output shaft 19 of the motor 17. The motor 17 is the above-described general motor, and the rotation center axis CL1 of the output shaft member 15A and the rotation center axis CL3 of the rotation output shaft 19 of the motor 17 extend in parallel with each other. With this configuration, the stroke S3 of the slide member 13 that is longer than the stroke S1 of the slide member 13 shown in FIG. 2 can be easily obtained while making the apparatus compact.

  Next, the workpiece corner forming apparatus 3 will be described in detail.

  4 is a perspective view showing a schematic configuration of the workpiece corner forming apparatus 3 as described above, and FIG. 5 is a front view of the workpiece corner forming apparatus 3, as viewed from the direction of arrow V in FIG. It is.

  6 is a view taken along arrow VI in FIG. 5, FIG. 7 is a view taken along arrow VII in FIG. 6, and FIG. 8 is a view showing a section VIII-VIII in FIG.

  9 is a diagram showing a IX-IX cross section in FIG. 5, FIG. 10 is a diagram showing a XX cross section in FIG. 5, and FIG. 11 is a diagram showing a XI-XI cross section in FIG. .

  12 is a view showing a cross section taken along line XII-XII in FIG. 6, FIG. 13 is a view showing a partial cross section taken along line XIII-XIII in FIG. 6, and FIG. 14 is a cross section taken along line XIV-XIV in FIG. FIG.

  As described above, the workpiece corner forming apparatus 3 is configured such that the metal thin plate-like workpiece W installed on the die 5 and the corner W1 by the cooperation of the die 5 and the forming roller 7. This is a device that performs plastic deformation at a corner vicinity portion W5 (see FIG. 15), which is a portion W3 in the vicinity of, and forms a side wall W7 that rises continuously along the corner vicinity portion W5.

  The workpiece corner forming device 3 is a unit that can be attached to and detached from the frame 9 of the pressurizing device 1 and a movable body (sliding member) 13 that is movable in the Z-axis direction with respect to the frame 9. And a forming roller aligning mechanism 41 that automatically adjusts the posture of the forming roller 7 by the force received from the work W when the work W is formed. The forming roller alignment mechanism 41 moves the forming roller 7 to form the work W, and the posture of the forming roller 7 is not affected by the force received from the work W (the movement of the forming roller 7 in the direction of the rotation center axis CL5 is not included). Is adjusted automatically.

  More specifically, for example, as shown in FIGS. 5 and 9, the workpiece corner forming apparatus 3 includes a base member 43 and a moving member 45. The die 5 is installed on the base member 43, and the base member 43 is easily detachable from the frame 9 of the pressurizing device 1 using a fastening member such as a bolt. . The die 5 has a flat surface (upper surface) 5A on which the plate-shaped workpiece W is placed (placed), and a corner 73 is formed on the edge of the upper surface 5A.

  The moving member 45 can be easily attached to and detached from the movable body 13 of the pressurizing device 1 using a fastening member such as a bolt so as to move together with the movable body 13. The moving member 45 installed on the movable body 13 moves in a direction intersecting the upper surface 5A of the die 5 installed on the base member 43 (for example, the Z-axis direction).

  For example, the moving member 45 is connected via a columnar guide post 47 erected on the base member 43 and a cylindrical bush 49 that is engaged with the guide post 47 and is provided integrally with the moving member 45. The base member 43 is engaged (see FIG. 11). As described above, the moving member 45 is movable in a direction intersecting the upper surface 5A of the die 5 installed on the base member 43 (for example, a Z-axis direction that is an orthogonal direction). And even if the moving member 45 moves downward, it does not detach from the base member 43. It should be noted that if the moving member 45 moves upward, it can be easily detached from the base member 43.

  As described above, since the moving member 45 is engaged with the base member 43, when the workpiece corner forming apparatus 3 is conveyed, the base member 43 is positioned on the lower side and only the base member 43 is transferred. You can apply a lifting force to the.

  The forming roller 7 is rotatably provided on the moving member 45 (more specifically, for example, a cam movement 119 described later; see FIGS. 11 and 12) so as not to be easily detached from the moving member 45. . Further, the forming roller 7 is continuously rotated along the portion W5 near the corner of the workpiece W in cooperation with the die 5 while rotating (rotating by forming a corner opposite to the workpiece W) by the movement of the moving member 45. Plastic working for forming the rising side wall W7 is performed.

  More specifically, the part of the workpiece W existing in the vicinity of the corner W5 of the workpiece W installed on the die 5 (the workpiece W placed on the upper surface 5A of the die 5 installed on the base member 43). A predetermined angle from a planar portion W11 of the workpiece W that is in contact with the upper surface 5A of the die 5 at a corner portion 73 (for example, a portion overhanging from the corner 73 of the die 5). Plastic working is performed to form a side wall W7 that rises continuously along the corner vicinity portion W5 (for example, at a right angle).

  Further, as shown in FIGS. 5 and 6, a temporary clamping device that temporarily clamps the workpiece W so that the workpiece W installed on the die 5 is fixed to the die 5 is provided in the workpiece corner forming device 3. 51 and the present clamping device 53 are provided. These clamping devices 51 and 53 are also provided so as not to be easily detached from the corner forming device 3 of the workpiece. The clamp device 53 is a device that clamps the workpiece W placed on the die 5 with a force larger than that of the temporary clamp device 51 when the forming roller 7 performs plastic working.

  The temporary clamping device 51 includes a beam 55 extending in the X-axis direction on the upper side of the die 5 integrally installed on the base member 43 via the die support member 54, and the beam 55 integrally therewith. A clamp member (a member extending in the X-axis direction as in the case of the beam 55 and abutting against the workpiece W at the center in the X-axis direction) 61 is provided. The beam 55 is engaged with a columnar post 57 erected on the base member 43 via a bush 59 (a bush provided integrally with the beam 55), and is movable in the Z-axis direction. The actuator is moved in the Z-axis direction by an actuator such as a pneumatic cylinder 63. The workpiece W can be temporarily clamped by the clamp member 62.

  The clamp device 53 includes a columnar post 64. The post 64 is engaged with the moving member 45 via a bush 65 provided integrally with the moving member 45 and is movable in the Z direction. The lower part of the post 64 protrudes downward from the moving member 45, and the upper part of the post 64 protrudes upward from the moving member 45. The lower part of the post 64 is in contact with the clamp member 61, and the post 64 is also moved up and down by the vertical movement of the beam 55 (clamp member 61).

  At least two posts 64 are provided, and one post is located on one end side (right side in FIG. 6) of the moving member 45 (beam 55; clamp member 61) in the X-axis direction, and the other one. Is located on the other end side (left side in FIG. 6) of the moving member 45 in the X-axis direction.

  Further, the main clamping device 53 is configured to perform main clamping of the workpiece W by a ring-shaped cylinder 66 provided on the movable body 13 of the pressurizing device 1 (see FIG. 2).

  More specifically, as shown in FIG. 2, a through-hole 67 is provided at the position of the movable body 13 where the post 64 of the workpiece corner forming device 3 installed in the pressurizing device 1 is provided. In addition, the upper part of the post 64 enters each through hole 67.

  The cylinder 66 includes a ring-shaped (annular) piston 69 around the axis CL1. Each through-hole 67 is located at a circumferential location of the piston 69. A compressed fluid such as hydraulic pressure or air pressure is supplied to a space 71 above the piston 69 from a supply source (not shown) via a pipe (not shown). By supplying the compressed fluid to the space 71, the piston 69 is urged downward. In addition, when the compressed fluid supplied to the space 71 is an incompressible fluid such as hydraulic pressure, a relief valve is provided in the pipe.

  When the movable body 13 descends in a state where the temporary clamp device 51 is temporarily clamped and the compressed fluid is supplied to the space 71, a downward force is applied to the clamp member 61 via the post 64, and the workpiece W is clamped by the main clamp. It has come to be.

  By forming the cylinder 66 in a ring shape, the cylinder 66 can be installed while avoiding interference from the nut 25 and the like. Further, since each post 64 pushes the clamp member 61 downward on both sides of the clamp member 61 in the X-axis direction (the right side and the left side in FIG. 6), the workpiece W can be fully clamped with the clamp member 61 in a balanced manner. . In the Y direction, the position of each post 64 substantially coincides with the position where the clamp member 61 contacts the workpiece W.

  Further, a configuration in which only one post 64 is provided may be employed. In this case, the post 64 is provided at substantially the same position as the position where the clamp member 61 contacts the workpiece W in the X-axis direction and the Y-axis direction, and one normal-type cylinder is used instead of the annular cylinder 66. It is assumed that the post 64 is pushed.

  Here, the corner | angular part shaping | molding apparatus 3 of a workpiece | work is demonstrated in detail.

  The die 5 has a flat surface (upper surface) 5A, and when viewed from a direction (Z-axis direction) orthogonal to the upper surface 5A, the work W having the shape shown in FIG. 15A has the shape shown in FIG. A corner 73 for forming is formed on the edge of the upper surface 5A (see FIG. 9). The corner 73 is formed at the intersection of two straight lines 75 and 77 that intersect each other. The intersecting portion may be formed by sharply bending a straight line, but in the present embodiment, the straight line is not sharply bent. In other words, an arcuate portion 79 having a predetermined radius is formed between the two straight lines 75 and 77, and the shape of the corner portion 73 gradually transitions between the arcuate portions 79. is doing. Further, at least at the corner portion 73 and at the corner portion vicinity portion 81 which is a portion in the vicinity of the corner portion 73, a side surface 83 (see FIG. 8) substantially orthogonal to the upper surface 5A of the die 5 is formed.

  The molding roller 7 is parallel to the upper surface 5A of the die 5 when viewed from the direction (Z-axis direction) orthogonal to the upper surface 5A of the die 5 installed on the base member 43 (the extending direction of the upper surface 5A). Is provided on the moving member 45 so as to be rotatable about the axis CL5 that is separated from the corner 73 of the die 5 (see FIG. 12).

  Further, the forming roller 7 has a predetermined slight distance (a corner portion 73 of the die 5 and a portion near the corner portion 81 that is a portion near the corner portion 73 (a portion corresponding to the portion W5 near the corner portion of the workpiece W)). A line extending substantially in parallel with a distance substantially equal to the thickness of the workpiece W (two line segments 85 and 87 intersecting each other and an arcuate curve 89 between the two line segments 85 and 87) Is formed in a shape having a surface obtained when the edge line 83, which is a line formed in (1), is rotated around the rotation center axis CL5 (see FIG. 12).

  For example, as shown in FIG. 12, the alignment mechanism 41 is arranged on the moving member 45 with the axis CL7 extending in the moving direction (Z-axis direction) of the moving member 45 passing through substantially the center of the forming roller 7 as the center. An intermediate member 91 that rotates relative to the intermediate member 91 and an urging means 93 are provided. The biasing means 93 biases the intermediate member 91 so that the corner vicinity portion 81 of the die 5 and the edge (edge line 83) of the forming roller 7 are parallel to each other when viewed from the Z-axis direction. It is like that.

  The workpiece corner forming apparatus 3 is provided with a forming roller adjusting mechanism 94. The molding roller adjusting mechanism 94 maintains the orientation of the molding roller 7 (almost maintaining the parallelism between the corner vicinity portion 81 and the edge line 83 of the molding roller 7 when viewed from the Z-axis direction). Also, the direction in which the forming roller 7 approaches and separates from the die 5 (with the rotation center axis CL5 of the forming roller 7 extending substantially parallel to the upper surface 5A of the die 5) (Y-axis direction) It is a mechanism that can be moved and positioned freely.

  The forming roller 7 is supported by a moving member 45 (more specifically, a cam movement 119 described later) via a bearing such as a roller bearing 96, and moves slightly in the extending direction of the rotation center axis CL5. It is configured to be able to. In this case, when viewed from the Z-axis direction, the distance between the linear portion on one side of the corner vicinity portion 81 and the edge of the molding roller 7 facing this one portion is The distance between the linear portion on the other side of the corner vicinity portion 81 and the edge of the molding roller 7 facing the other portion is substantially equal to each other, that is, In order to make Δt5 and Δt7 shown in FIG. 26 substantially equal, biasing means for biasing the forming roller 7 in the direction of the rotation center axis CL5 may be provided.

  In addition, the workpiece corner forming apparatus 3 applies an excess portion W13 (see FIG. 15B) of the workpiece W placed on the die 5 and formed by the movement of the forming roller 7 to the force generated by the movement of the moving member 45. The cutting means 99 which cuts using is provided (refer FIG. 5).

  The workpiece corner forming apparatus 3 will be described in more detail.

  The die 5 is formed in a rectangular flat plate shape having a predetermined thickness, for example. The upper surface 5A on which the plate-like workpiece W is placed is formed by one surface in the thickness direction of the die 5. Further, as described above, the tip end portion of the corner portion 73 of the die 5 is not abruptly bent, and, for example, an arc-shaped chamfer having a predetermined radius is formed (FIGS. 5 and 9). reference). Since the base member 43 is formed in a plate shape, the die 5 is installed on the base member 43 indirectly via the die support member 54. The die 5 may be directly supported by the base member.

  The moving member 45 is integrally installed on the movable body 13 of the pressurizing device 1 and is movable in the Z-axis direction as described above. More specifically, the moving member 45 includes a rectangular flat plate-like upper member 100 having a predetermined thickness, and a lower member 102 formed in a “U” shape and provided integrally with the upper member 100. (See FIG. 8).

  As shown in FIG. 12, the moving member 45 is provided with an intermediate member 95 constituting a forming roller adjusting mechanism 94. The intermediate member 95 is supported by the moving member 45 on the side away from the die 5 with respect to the corner portion 73 of the die 5 installed on the base member 43. The intermediate member 95 is a straight line that bisects the angle of the corner portion 73 of the die 5 installed in the base member 43 in a direction orthogonal to the moving direction (Z-axis direction) of the moving member 45. By using a member 98 such as a bolt in the direction (X-axis direction) in which the bisector L7 (see FIGS. 9 and 12) extends, the movable member 45 can be moved and positioned. Further, the intermediate member 95 opposes the concave portion 97 formed by a part of the side surface of the cylinder having the central axis (for example, the central axis CL7) on the bisector L7 to the corner portion 73 of the die 5. It is prepared.

  The moving member 45 is provided with an intermediate member 91 as shown in FIG. 12, for example. The intermediate member 91 is separated from the corner portion 73 between the corner portion 73 (forming roller 7) of the die 5 installed on the base member 43 and the intermediate member 95, and is supported by the moving member 45 and engaged with the intermediate member 95. Yes. Each of the intermediate members 91 and 95 is provided inside the lower member 102 of the moving member 45 and is prevented from dropping from the moving member 45 by the stopper 104 (see FIG. 8).

  Further, the intermediate member 91 rotates about the central axis CL7 of the concave portion 97 of the intermediate member 95 by making surface contact with the concave portion 97 of the intermediate member 95 and making a corner of the slip. By rotating in this way, the forming roller 7 shown in FIG. 12 rotates about the axis CL7 extending in the Z-axis direction, and the forming roller 7 can change its posture. In order to reduce the frictional force in the slip, it is desirable that a lubricant such as grease exists between the recess 97 and the intermediate member 91. Further, in place of or in addition to the lubricant, the concave portion 97 or the like may be subjected to a surface treatment for reducing friction. Furthermore, the intermediate member 91 and the intermediate member 95 may be configured to be in rolling contact.

  When the intermediate member 91 is in the default posture as shown in FIG. 12, the rotation center axis CL5 of the forming roller 7 is in the X-axis direction on the side away from the die 5 with respect to the corner 73 of the die 5. Extending in a direction perpendicular to the bisector line L7. In addition, as already understood, the forming roller 7 is formed in a substantially opposed conical shape in which the vertices are in contact with each other.

  In order to form the workpiece W, the forming roller 7 moves between one side (upper side) of the upper surface 5A and the other side (lower side) of the upper surface 5A across the upper surface 5A of the die 5 by the movement of the moving member 45. It moves between them in the Z-axis direction. As already understood, the cones of the forming roller 7 have the same shape. However, if the extending direction of the rotation center axis CL5 of the forming roller is parallel to the upper surface 5A of the die 5, the rotation center axis of the forming roller is in another direction (a direction including components in the X axis direction and the Y axis direction). It may be stretched. In this case, the apex angles of the two cones of the forming roller are different from each other.

  The urging means 93 includes a pulling member 101 and an elastic body (for example, a compression coil spring) 103 (see FIG. 13A). The pulling member 101 is provided through the through hole 105. The through-hole 105 extends in the X-axis direction (circumferential direction of the concave portion 97 on the columnar side surface of the intermediate member 95) as shown in FIG. 13B (as viewed from the XIII arrow in FIG. 13A). It is a hole. The through-hole 105 is on the opposite side (the rear side of the moving member 45) from the die 5 installed on the base member 43 with the molding roller 7 therebetween, and the moving member 45 (lower member 102) and the intermediate member 95 are connected to each other. It is provided through.

  The columnar pulling member 101 has a base end portion integrally provided with the intermediate member 91, and a distal end side portion provided with the flange portion 107 protrudes from the moving member 45, and responds to the rotation of the intermediate member 95. Thus, the inside of the long hole 105 is swingable. Further, the elastic body 103 is constituted by a compression spring, for example, so that the intermediate member 91 is pressed against the concave portion 97 of the intermediate member 95 (in FIG. 13A, the intermediate member 91 moves upward). ), Provided between the flange portion 107 of the pulling member 101 and the moving member 45.

  By the way, in order to process the workpiece W shown in FIG. 15A into the shape shown in FIG. 15B, the surface W11 of the workpiece W comes into contact with the upper surface 5A of the die 5, as already understood. The portion W5 near the corner W of the W is located at the portion 81 near the corner of the die 5, and the portion bent downward from the surface W1 of FIG. Thus, it is necessary to place the workpiece W on the die 5. And the workpiece | work W is inserted | pinched with the die | dye 5 and the shaping | molding roller 7, and a shaping | molding process is made. Moreover, in order to process the workpiece W shown in FIG. 15A into the shape shown in FIG. It is necessary to perform molding at the four corners of the workpiece W.

  Here, the cutting means 99 will be described in detail.

  The cutting means 99 includes a shearing moving member 109 (see FIG. 5). The shearing moving member 109 is supported by the base member 43 via the linear guide bearing 111, and approaches and separates from the die 5 installed on the base member 43 below the forming roller 7 (for example, It is movable in the Y-axis direction).

  Further, in the shearing moving member 109, an excessive portion W13 (see FIGS. 15B, 8 and 20A) of the work W placed on the die 5 and formed by the movement of the forming roller 7, A plate-like cutting blade 113 for shearing in cooperation with the die 5 can be installed.

  The cutting (shearing) of the surplus portion W13 of the work W is performed in cooperation with the lower surface 5B of the die 5 and the upper surface 113A of the cutting blade 113.

  Further, the shearing moving member 109 is brought into contact with the work W from a position (position shown in FIG. 5) where the cutting blade 113 installed on the shearing moving member 109 is separated from the work W by an actuator (for example, a pneumatic cylinder) 115. It moves to the position.

  The shearing moving member 109 is integrally provided with a cam follower 117 having a slope 117A. The moving member 45 is integrally provided with a cam groove 119 having an inclined surface 119A. Then, the molding process of the workpiece W is completed by the cooperation of the die 5 and the molding roller 7, and the surplus portion W13 remains, and the moving member 45 (the molding roller 7) is raised as shown in FIG. When the moving member 45 is lowered in a state where the shearing moving member 109 is moved to the left in FIG. 5 and the cutting blade 113 is in contact with the workpiece W, the cam moving link 119 is placed on the inclined surface 117A of the cam follower 117. The inclined surface 119A comes into contact, and the cutting blade 113 is further moved leftward with a strong force, so that the surplus portion W13 of the workpiece W is sheared.

  In order to reduce the frictional force between the slopes 117A and 119A, it is desirable that a lubricant such as grease be present on the slopes 117A and 119A. Further, instead of or in addition to the lubricant, each of the slopes 117A and 119A may be subjected to a surface treatment for reducing friction. Furthermore, you may make it the structure which rolls and contacts each slope 117A, 119A.

  Further, as shown in FIG. 9, the cutting blade 113 has a “V” -shaped corner 121 corresponding to the corner 73 of the die 5 and is formed in a plate shape. The cutting blade installed on the shearing moving member 109 while maintaining the state where the upper surface 113A of the cutting blade 113 is parallel to the plane (lower surface) 5B of the die 5 and is slightly separated from the plane 5B. 113 moves with respect to the base member 43 to shear the surplus portion W13 of the workpiece W.

  The thickness t2 of the die 5 and the height position of the upper surface 113A of the cutting blade 113 are adjusted in accordance with the height h1 of the side wall W7 shown in FIG. 15B (see FIG. 5).

  Further, as shown in FIG. 14 (a diagram showing a schematic configuration of the abutting portion of the workpiece W), when placing the workpiece W on the die 5, an abutting member (columnar abutting) for positioning the workpiece W is provided. A contact pin 123 is provided on the die support member 54. The abutting member 123 is erected at the distal end portion of the swingable swing member 127 with respect to the pin support member 125 provided integrally with the die support member 54, and the position thereof is adjusted by the adjustment screw 129. Fine adjustments can be made.

  In addition, as a work before the forming process is performed by the cooperation of the die 5 and the forming roller 7, it is asymmetrical at the corner (corner) as shown in FIG. 16 instead of the work shown in FIG. A workpiece that has been bent may be used.

  Next, the operation of the workpiece corner forming apparatus 3 installed in the pressurizing apparatus 1 will be described.

  As shown in FIGS. 5 and 8, the initial state is that the moving member 45 is raised, the shearing moving member 109 is retracted, and the workpiece W shown in FIG. 15B is positioned in a predetermined posture. In this state, the hydraulic pressure is supplied to the space 71 of the cylinder 66.

  In this initial state, the clamp member 61 descends and temporarily clamps the workpiece W under the control of a control device (not shown) of the pressure device 1.

  Subsequently, when the movable body 13 is lowered, the upper part of the post 64 comes into contact with the piston 69 of the cylinder 66 during the lowering (before the forming roller 7 comes into contact with the workpiece W), and the clamp member 61 is interposed via the post 64. Is pushed downward, and the workpiece W is fully clamped.

  When the movable body 13 is further lowered while maintaining the state in which the workpiece W is fully clamped, the molding roller 7 comes into contact with the workpiece W, and the workpiece W is sandwiched between the molding roller 7 and the die 5. As shown in (b), the corner of the workpiece W is formed. 8 indicates the position of the work W before being formed by the forming roller 7, and PS3 shown in FIG. 8 indicates the position of the work W after being formed by the forming roller 7.

  Subsequently, the movable body 13 is raised while the workpiece W is clamped (a main clamp or a temporary clamp may be used). The rising height of the movable body 13 is such that when the surplus portion W13 is sheared, the cutting blade 113, the shearing moving member 109, the cam follower 117, and the like, the moving member 45, the cam nodule 119, etc. The height should not interfere with each other.

  Next, with the workpiece W clamped (which may be a main clamp or a temporary clamp), the shearing moving member 109 is advanced, the cutting blade 113 is brought into contact with the workpiece W, the movable body 13 is lowered, and the workpiece W is lowered. In this state, the cam follower 117 is engaged with the cam follower 117, the shear moving member 109 is further advanced, and the surplus portion W13 of the work W is cut and removed.

  Subsequently, the movable body 13 is raised, the shearing moving member 109 is retracted, the workpiece W is placed on the die 5 again, and the other corners of the workpiece W are similarly formed.

  According to the pressurizing device 1, since the output shaft member 15 is connected to the rotation output shaft 19 of the general motor 17 and rotates, when the maintenance of the motor 17 is necessary, only the motor 17 is removed. Thus, the maintenance can be performed easily, and the influence of heat generated from the motor 17 can be minimized.

  Further, according to the pressurizing device 1, since the screw shaft member 27 enters the hole 21 of the output shaft member 15, for example, the device can be made compact by the amount of the entry. That is, the height of the apparatus can be reduced by the length of the dimension L11 in FIG. 24 (a diagram showing a schematic configuration of a conventional pressurizing apparatus).

  According to the workpiece corner forming apparatus 3, since the workpiece corner forming apparatus 3 is unitized, it is easy to process many types of workpieces, and even if the types of workpiece forms increase, It is possible to shorten the stop time of the pressure device 1 necessary for the replacement of the corner forming device 3 and to prevent the operating rate of the pressure device 1 from decreasing.

  Further, even when the workpiece corner forming device 3 fails, it is easy to replace the failed workpiece corner forming device 3 with another workpiece corner forming device. The stop time can be shortened and the operating rate can be improved.

  Furthermore, the pressurizing device 1 can be easily used as an appropriate press device by exchanging the corner forming device 3 of the unitized workpiece with another mold.

  In addition, the workpiece corner forming apparatus 3 includes the forming roller alignment mechanism 41 that automatically adjusts the posture of the forming roller 7, so that the operator needs to adjust the posture of the forming roller 7. In addition, when machining the workpiece W, the posture and position of the forming roller 7 relative to the die 5 can be maintained at an appropriate position as shown in FIG. Can be added to the workpiece W, and the workpiece W can be accurately processed. Note that “t1” in FIG. 17 indicates a gap between the die 5 and the forming roller 7 in a plan view, and the arrows AR1 and AR3 indicate the behavior of the forming roller 7.

  Further, according to the workpiece corner portion forming apparatus 3, since the forming roller 7 is provided with the forming roller adjusting mechanism 94 that can move and position in the direction (Y-axis direction) in which the forming roller 7 approaches and separates from the die 5, Even when the plate thickness changes, the position of the forming roller 7 (the gap between the die 5 and the forming roller 7) can be easily adjusted, and accurate processing can be performed.

  In addition, according to the workpiece corner portion forming apparatus 3, the forming roller 7 is provided so as to be slightly movable in the extending direction of the rotation center axis CL5. In addition to the adjustment of the posture, further adjustment of the position of the forming roller 7 can be automatically performed, and the workpiece W can be accurately processed.

  Furthermore, according to the workpiece corner forming apparatus 3, the surplus portion W <b> 13 of the workpiece W processed by the cooperation of the die 5 and the forming roller 7 is cut using the force generated by the movement of the moving member 45. Therefore, it is not necessary to separately provide a large thrust drive source for cutting the surplus portion W13 of the workpiece W, and the configuration of the apparatus is simplified.

  By the way, in the corner forming apparatus 3 of the workpiece, the position and posture of the molding roller 7 are changed with respect to the die 5, but FIG. 18 (a diagram showing a modification of the corner forming apparatus of the workpiece). As shown, the forming roller 7 is slightly moved only in the X-axis direction, and the die 5 is slightly rotated about the axis CL9 and slightly moved in the front-rear direction (Y-axis direction). May be. Further, as shown in FIG. 19 (a diagram showing a modified example of the workpiece corner forming apparatus), the die 5 is slightly rotated about the axis CL9 and slightly moved in the front-rear direction (Y-axis direction). However, it may be configured to move slightly only in the X-axis direction.

  Moreover, in the corner | angular part shaping | molding apparatus 3 of a workpiece | work, as shown to Fig.20 (a), although the side wall part W7 substantially orthogonal to the workpiece | work W is formed with the shaping | molding roller 7 and the die | dye 5, FIG. ), The side wall W7 other than a right angle to the workpiece W may be formed by the forming roller 7 and the die 5. The angle “θ” shown in FIG. 20B is preferably an obtuse angle.

  Further, in the workpiece corner forming apparatus 3, as shown in FIG. 21 (a plan view showing a modification of the workpiece corner forming apparatus 3), the die 5 is indexed and formed into each corner of the workpiece W in order. 22, as shown in FIG. 22, the die 5 may be index-positioned, and two of the corners of the workpiece W may be formed in order, and further, as shown in FIG. 23. In addition, all corners of the workpiece W may be simultaneously molded.

  Furthermore, in the corner forming apparatus 3 of the workpiece, the intermediate members 91 and 95 are brought into surface contact with the cylindrical side surface to change the posture of the forming roller 7, but the intermediate members 91 and 95 are spherical surfaces. You may make it change the attitude | position of the shaping | molding roller 7 by mutually making surface contact with (surface formed using a part of spherical surface).

  In the embodiment shown in FIG. 12, the intermediate member 95 is moved and positioned by using the bolt 98. However, as shown in FIG. 27, the fluid pressure cylinder (single-action cylinder) 151, the stepped bolt 155, the elasticity You may make it move the intermediate member 95 using the compression coil spring 157 which is an example of a body.

  The fluid pressure cylinder 151 includes a piston 152 provided integrally with the intermediate member 95, and a space 153 is formed on one side of the piston 152 (on the opposite side to the intermediate member 95). A space 159 is formed on the other side of 152 (the intermediate member 95 side). The space 159 is open to the atmosphere via a flow path (not shown), and, for example, hydraulic pressure is supplied to the space 153 from a hydraulic pressure generator such as a hydraulic pump (not shown) via the flow path (not shown). Yes.

  When the hydraulic pressure is supplied to the space 153, the intermediate member 95 (the forming roller 7) moves in a direction approaching the die 5 (upward direction in FIG. 27). On the other hand, when the supply of hydraulic pressure to the space 153 is stopped and the pressure in the space 153 drops to, for example, about atmospheric pressure, the compression coil spring 157 biases the reverse direction (downward in FIG. 27). The forming roller 7) moves in a direction away from the die 5 (downward direction in FIG. 27).

  That is, when hydraulic pressure is supplied to the space 153, the piston 152 moves upward until the dimension t11 shown in FIG. 27 becomes “0”, and when the pressure in the space 153 decreases to about atmospheric pressure, for example, FIG. The piston 152 moves downward until the indicated dimension t13 becomes “0”.

  When the forming roller 7 is pressed by the work W (by the force received from the work when forming the work), the position of the forming roller 7 (intermediate member 95) changes, and the position of the intermediate member 95 is automatically set. Therefore, the hydraulic pressure supplied to the space 153 can be adjusted using an accumulator or a relief valve.

  Next, the operation of moving and adjusting the intermediate member 95 with the configuration shown in FIG. 27 will be described.

  First, the workpiece to be processed is set on the die 5, and the hydraulic pressure is not supplied to the space 153. The intermediate member 95 (forming roller 7) is located on the lower side of FIG. It is “0”. That is, it is assumed that the forming roller 7 is stopped at the backward end.

  Subsequently, when the hydraulic pressure is supplied to the space 153, the intermediate member 95 (the forming roller 7) moves upward in FIG. 27, and the dimension t11 becomes “0”. That is, the forming roller 7 stops at the forward end.

  In the state where the forming roller 7 is stopped at the retracted end, the distance between the die 5 and the forming roller 7 (dimension t1 in FIG. 17) is larger than the thickness of the workpiece. When stopped at the forward end, the distance between the die 5 and the forming roller 7 (dimension t1 in FIG. 17) is about half the thickness of the workpiece. For example, when the thickness of the workpiece is 0.8 mm, the dimension t1 (dimension t1 in FIG. 17) when the forming roller 7 is stopped at the forward end is approximately 0.4 mm to 0.6 mm. ing.

  Subsequently, when the forming roller 7 is lowered and the forming roller 7 comes into contact with the workpiece, the forming roller 7 (intermediate) is supplied even though the hydraulic pressure is supplied to the space 153 by the force received from the workpiece during the forming of the workpiece. The member 95) is appropriately moved downward in FIG. 27, the position of the intermediate member is automatically adjusted, and the workpiece is processed. That is, the workpiece is formed while applying a predetermined pressing force to the workpiece.

  When the forming roller 7 is further lowered and the forming of the workpiece is finished, the supply of hydraulic pressure to the space 153 is stopped, the forming roller 7 is moved backward by the spring 157, and the forming roller 7 is raised. At this time, since the forming roller 7 is retracted, contact between the forming roller and the work can be avoided, and damage to the work can be prevented.

  The intermediate member 95 may be moved downward in FIG. 27 using a fluid pressure cylinder, and the intermediate member 95 may be moved upward in FIG. 27 using an elastic body.

  Further, as shown in FIG. 28, a configuration in which two fluid pressure cylinders 151 are arranged in the X-axis direction may be employed. In this case, the bolt 155 and the compression coil spring 157 may be provided between the fluid pressure cylinders 151. Furthermore, instead of using the fluid pressure cylinder 151, a configuration using an elastic body such as a spring may be used.

It is a perspective view showing a schematic structure of a pressurizing device concerning an embodiment of the present invention. It is a figure which shows schematic structure of the mechanism for moving the slide member of a pressurization apparatus. It is a figure which shows schematically the modification of the mechanism for moving the slide member of a pressurization apparatus. It is a perspective view which shows schematic structure of the corner | angular part shaping | molding apparatus of the workpiece | work used by installing in a pressurization apparatus. It is a front view of the corner | angular part shaping | molding apparatus of a workpiece | work, and is a V arrow view in FIG. It is VI arrow directional view in FIG. It is a VII arrow line view in FIG. It is a figure which shows the VIII-VIII cross section in FIG. It is a figure which shows the IX-IX cross section in FIG. It is a figure which shows the XX cross section in FIG. It is a figure which shows the XI-XI cross section in FIG. It is a figure which shows the XII-XII cross section in FIG. It is a figure which shows the partial cross section of XIII-XIII in FIG. It is a figure which shows the XIV-XIV cross section in FIG. It is a perspective view which shows schematic structure of a workpiece | work, (a) shows the form of the workpiece | work before being processed with the corner | angular part shaping | molding apparatus of a workpiece | work, (b) is the workpiece | work processed with the corner | angular part shaping | molding apparatus of the workpiece | work. (C) is the figure which looked at the workpiece | work shown in (b) from the back side. It is a figure which shows the modification of a workpiece | work. It is a figure which shows the behavior etc. of the forming roller. It is a figure which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is a figure which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is a figure which shows the modification of the shaping | molding process of a workpiece | work. It is a top view which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is a top view which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is a top view which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is a figure which shows the outline | summary of the mechanism for moving the slide member of the conventional pressurization apparatus. It is a figure which shows the state of the clearance gap between die | dye and a forming roller. It is a figure which shows the state of the clearance gap between die | dye and a forming roller. It is sectional drawing corresponding to FIG. 6, and is sectional drawing which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work. It is sectional drawing corresponding to FIG. 6, and is sectional drawing which shows the modification of the corner | angular part shaping | molding apparatus of a workpiece | work.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressurization apparatus 3 Work corner part forming apparatus 5 Die 5A Die upper surface (plane)
7 Forming roller 9 Frame 13 Slide member (movable body)
15, 15A Output shaft member 17 Motor 19 Rotation output shaft 21 Hole 21A Through hole 25 Nut 27 Screw shaft member 29 Large diameter portion 31 Small diameter portion 41 Forming roller alignment mechanism 43 Base member 45 Moving member 51 Temporary clamp device 53 This clamp device 73 Die corner portion 81 Die corner vicinity portion 91, 95 Intermediate member 93 Energizing means 94 Forming roller adjusting mechanism 97 Recess 99 Cutting means 105 Through hole 109 Cutting moving member 113 Cutting blade 117 Cam follower 119 Pedestal W Work W1 Corner W5 Corner vicinity W7 Side wall W11 Center L7 Bisection straight line

Claims (10)

Due to the cooperation of the die and the forming roller, plastic deformation is caused at the corner of the plate-like workpiece and the vicinity of the corner, which is the vicinity of the corner, and rises continuously along the vicinity of the corner. In the workpiece corner forming apparatus for forming the side wall,
An apparatus for forming a corner portion of a workpiece, comprising: a forming roller alignment mechanism that automatically adjusts a posture of the forming roller by a force received from the workpiece when the workpiece is formed. A base member for installing a die having a plane on which a plate-like workpiece is placed and having corners formed on the edges of the plane;
A movable member movable in a direction intersecting with a plane of the die installed on the base member;
The moving member is rotatably provided, and in cooperation with the die by the movement of the moving member, is present at the corner and a portion near the corner, which is a portion near the corner. A forming roller that performs plastic working to form a side wall portion that continuously rises along a portion in the vicinity of the corner portion at a predetermined angle from the portion of the workpiece that is in contact with the plane of the die at a portion of the workpiece that is in contact;
A forming roller alignment mechanism that automatically adjusts the posture of the forming roller by a force received from the work when the forming roller is moved to form the work;
An apparatus for forming a corner portion of a workpiece, comprising: A base member for installing a die having a plane on which a plate-like workpiece is placed and having corners formed at the edges of the plane;
A movable member movable in a direction substantially perpendicular to the plane of the die installed on the base member;
When viewed from a direction orthogonal to the plane of the die installed on the base member, the movement is performed around an axis extending in the extending direction of the plane of the die and away from the corner of the die. An edge line that is provided on the member so as to be rotatable, and extends substantially parallel to the corner portion of the die and a portion near the corner, which is a portion near the corner, while maintaining a predetermined slight distance. And a forming roller formed into a shape having a surface obtained by rotating around the rotation center axis;
A forming roller aligning mechanism that automatically adjusts the posture of the forming roller by a force received from the work when the forming roller is moved to form the work;
An apparatus for forming a corner portion of a workpiece, comprising: In the corner | angular part shaping | molding apparatus of the workpiece | work of Claim 3,
A molding roller adjusting mechanism that can move and position the molding roller in a direction in which the plane of the die installed on the base member approaches and separates from the die while maintaining the posture of the molding roller. An apparatus for forming a corner portion of a workpiece, comprising: In the corner | angular part shaping | molding apparatus of the workpiece | work of Claim 3 or Claim 4,
The alignment mechanism is
An intermediate member that rotates with respect to the moving member about an axis that passes through substantially the center of the forming roller and extends in the moving direction of the moving member;
When viewed from a direction orthogonal to the plane of the die installed on the base member, the intermediate member is urged so that a portion near the corner of the die is parallel to the edge of the forming roller. Energizing means to do;
An apparatus for forming a corner portion of a workpiece, comprising: In the corner | angular part shaping | molding apparatus of the workpiece | work of any one of Claims 3-5,
An apparatus for forming a corner portion of a workpiece, wherein the forming roller is provided so as to be slightly movable in an extending direction of the rotation center axis. In the corner | angular part shaping | molding apparatus of the workpiece | work of any one of Claims 2-6,
An apparatus for forming a corner portion of a workpiece, comprising cutting means for cutting an excess portion of the workpiece, which is placed on the die and formed by movement of the forming roller, using a force generated by movement of the moving member. . A plate-shaped die that is installed integrally with the frame of the pressurizing apparatus and has a flat surface on which a metal thin plate-shaped workpiece is placed, and a plate-shaped die having corners on the edge of the plane is directly or indirectly A base member installed integrally;
A moving member that is integrally installed on the movable body of the pressurizing device, is separated from the base member and the die, and is movable in a direction perpendicular to the plane of the die installed on the frame;
A straight line that is supported by the moving member on the side away from the die and is perpendicular to the moving direction of the moving member and bisects the angle of the corner of the die installed on the base member A recess formed by a part of a side surface of a cylinder that is movable and positionable with respect to the moving member in a direction in which a bisector straight line extends and a central axis exists on the bisector straight line. A first intermediate member provided opposite the corner of the die;
The corner portion of the die installed on the base member and the first intermediate member are separated from the corner portion and engaged with the first intermediate member, and the concave portion of the first intermediate member A second intermediate member that rotates about the central axis of the recess of the first intermediate member by surface contact with the first intermediate member;
Rotating an axis extending in a direction extending in the plane of the die installed on the base member and perpendicular to the bisector line and extending away from the die Centered on the second intermediate member and rotatably provided with a predetermined slight distance from the corner of the die and the vicinity of the corner that is the vicinity of the corner. A forming roller having a surface obtained by rotating an edge line, which is a line extending substantially in parallel, about the rotation center axis, and having a substantially conical shape in contact with each other's apex When;
An elongated hole provided through the moving member and the first intermediate member on the opposite side of the die placed on the base member with the molding roller interposed therebetween, A distal end side provided with a flange portion through which a base end portion is provided integrally with the second intermediate member through a long hole provided in the circumferential direction of the concave portion of the cylindrical side surface of the intermediate member. A pulling member that protrudes from the moving member and is swingable in the elongated hole according to the rotation of the second intermediate member;
An elastic body provided between the flange portion of the pulling member and the moving member so that the second intermediate member is pressed against the recess of the first intermediate member;
An apparatus for forming a corner portion of a workpiece, comprising: In the corner | angular part shaping | molding apparatus of the workpiece | work of Claim 8,
A configuration in which the first intermediate member is moved using a fluid pressure cylinder and an elastic body, and the position of the first intermediate member is automatically adjusted by a force received from the workpiece when the workpiece is molded. An apparatus for forming a corner portion of a workpiece, characterized in that In the corner | angular part shaping | molding apparatus of the workpiece | work of Claim 8 or Claim 9,
A plate-shaped cutting blade for shearing the surplus part of the work placed on the die and formed by the movement of the forming roller in cooperation with the die is installed and installed on the base member A shearing moving member that is movable in a direction approaching and moving away from the die;
An actuator for moving the shearing moving member from a position where a cutting blade installed on the shearing moving member is separated from the workpiece to a position where the cutting blade comes into contact with the workpiece;
A cam follower provided integrally with the shearing moving member;
A cam that is provided integrally with the moving member and moves the shearing moving member by engaging the follower of the cam so as to shear the surplus portion of the work with the shearing blade in contact with the work. Verses of;
An apparatus for forming a corner portion of a workpiece, comprising:

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