WO2023100782A1 - Structure de positionnement et procédé de positionnement - Google Patents

Structure de positionnement et procédé de positionnement Download PDF

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Publication number
WO2023100782A1
WO2023100782A1 PCT/JP2022/043665 JP2022043665W WO2023100782A1 WO 2023100782 A1 WO2023100782 A1 WO 2023100782A1 JP 2022043665 W JP2022043665 W JP 2022043665W WO 2023100782 A1 WO2023100782 A1 WO 2023100782A1
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WO
WIPO (PCT)
Prior art keywords
plate member
plate
convex portion
peripheral edge
punch
Prior art date
Application number
PCT/JP2022/043665
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English (en)
Japanese (ja)
Inventor
拓也 岡本
Original Assignee
株式会社アマダ
株式会社アマダツール
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2022184685A external-priority patent/JP2023082665A/ja
Application filed by 株式会社アマダ, 株式会社アマダツール filed Critical 株式会社アマダ
Publication of WO2023100782A1 publication Critical patent/WO2023100782A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work

Definitions

  • the present disclosure relates to positioning structures and positioning methods.
  • a positioning structure is provided at an edge of a first plate member, and protrudes in a plate thickness direction from one surface side of the first plate member. and a concave portion formed on one surface of the second plate member that can receive the convex portion, and the one surface of the first plate member and the one surface of the second plate member are overlapped so as to face each other to form the second plate member.
  • the movement of the first plate member along one surface of the second plate member is restricted by engaging the convex portion of the first plate member with the concave portion of the second plate member.
  • a positioning method performs a punching process on a first plate material, and forms a convex portion composed of a plastic flow part of a material of the first plate material that protrudes in a punching direction from an edge of the first plate material. a second step of forming a concave portion capable of receiving the convex portion on one surface of the second plate; and a third step of engaging the convex portion of the first plate member with the concave portion of the second plate member to restrict movement of the first plate member along the surface of the second plate member.
  • the convex portion of the first plate protrudes in the plate thickness direction.
  • the convex portion can be formed by plastic flow of the material in the punching direction when forming the edge portion of the first plate by punching.
  • the convex portion of the first plate member is reliably engaged with the concave portion of the second plate member, thereby moving the first plate member along the surface of the second plate member. can be effectively regulated.
  • plate materials can be reliably positioned with respect to each other even when they are made of metal with low plastic fluidity.
  • FIG. 1 is a diagram illustrating a state before positioning by engaging the convex portion of the first plate member and the concave portion of the second plate member.
  • FIG. 2 is a diagram for explaining a state in which the convex portion of the first plate member and the concave portion of the second plate member are engaged and positioned.
  • FIG. 3 is a cross-sectional explanatory view for explaining the configuration of a punch press and a die used for processing the first plate material.
  • FIG. 4 is a cross-sectional explanatory view for explaining a state in which convex portions are formed on the first plate member.
  • FIG. 5 is a cross-sectional explanatory view of a die used when forming a convex portion on the first plate material.
  • FIG. 6 is a diagram illustrating a state before positioning by engaging the convex portion of the first plate member and the concave portion of the second plate member in the modified example.
  • FIG. 7 is a diagram for explaining a state in which the convex portion of the first plate member and the concave portion of the second plate member are engaged and positioned in the modified example.
  • FIG. 8 is a diagram for explaining a state in which the convex portion of the first plate member and the concave portion of the second plate member are engaged and positioned.
  • FIG. 9 is a diagram showing the AA cross section of FIG.
  • FIG. 10 is an enlarged view of a region surrounded by broken lines in FIG. FIG.
  • FIG. 11 is a diagram illustrating a state before positioning by engaging the convex portion of the first plate member and the concave portion of the second plate member.
  • 12A and 12B are plan views for explaining a method of forming a convex portion.
  • FIG. 13A and 13B are plan views for explaining a method of forming a convex portion.
  • FIG. 14A and 14B are plan views for explaining a method of forming a convex portion.
  • FIG. FIG. 15 is a plan view illustrating a method of forming recesses.
  • FIG. 16 is a plan view illustrating a method of forming recesses.
  • FIG. 17 is a plan view illustrating a method of forming recesses.
  • FIG. 18A and 18B are plan views for explaining a method of forming a convex portion.
  • FIG. 19A and 19B are plan views for explaining a method of forming convex portions.
  • FIG. 20 is a plan view for explaining a method of forming convex portions.
  • FIG. 1 is a diagram illustrating a state before positioning by engaging the convex portion 13 of the first plate member 10 and the concave portion 23 of the second plate member 20 .
  • FIG. 2 is a diagram illustrating a state in which the protrusion 13 of the first plate member 10 and the recess portion 23 of the second plate member 20 are engaged and positioned.
  • the positioning structure according to the present embodiment is provided at the edge of the first plate member 10, and consists of a plastic flow portion of the material of the first plate member 10 that protrudes in the plate thickness direction from one surface 11 side of the first plate member 10.
  • a convex portion 13 and a concave portion 23 formed on one surface 21 of the second plate member 20 and capable of receiving the convex portion 13 are provided.
  • the first plate member 10 moves along one surface 21 of the second plate member 20 by overlapping the first plate member 10 so as to face the surface 21 and engaging the convex portion 13 of the first plate member 10 with the concave portion 23 of the second plate member 20 . to regulate.
  • the first plate member 10 is provided with a punched hole 15 penetrating in the plate thickness direction in a planar region inside the outer peripheral edge forming the outline of the first plate member 10, and the convex portion 13 is a It is provided at the inner peripheral edge portion 15 a of the punched hole 15 , which is the edge portion of the plate member 10 .
  • a punched hole 15 which is an opening penetrating in the plate thickness direction (downward in FIG. 1), is provided in a planar region inside the outer peripheral edge (not shown) forming the outline of the first plate 10. It is An inner peripheral edge portion 15a of the punched hole 15 is formed with a convex portion 13 projecting along the plate thickness direction. The convex portion 13 protrudes so as to stand on one surface 11 (hereinafter simply referred to as “surface 11”) of the first plate member 10 .
  • the convex portion 13 is formed from a plastic flow portion which is the material of the first plate member 10 that plastically flows when the punched hole 15 is formed by punching.
  • the portion corresponding to the convex portion 13 is deformed so as to be slightly pulled toward the surface 11 side by the action of the punch when processing the punched hole 15.
  • the perimeter of the perforation 15 opposite the surface 11 may include a deformed portion, the so-called "slip" deformation.
  • the shape of the tip 13a of the projection 13 is formed at an acute angle ( ⁇ 1 ⁇ 90°).
  • the convex portion 13 is an annular convex portion continuously extending along the circumferential direction of the punched hole 15 .
  • the convex portion 13 is annular.
  • the convex portion 13 has an annular shape.
  • the first plate member 10 is a stainless steel plate member having a predetermined thickness within the range of 1 mm to 3 mm.
  • the height H is set to 0.1 mm or more and 0.6 mm or less.
  • the material and thickness of the plate material are not limited to these.
  • a plate made of aluminum or iron may be used as the plate.
  • the plate thickness may be in the range of 0.5 mm to 5 mm. Even in this case, the amount of projection of the convex portion with respect to the surface of the plate may be set to 0.1 mm or more and 0.6 mm or less as in the present embodiment.
  • a concave portion 23 capable of receiving the convex portion 13 of the first plate member 10 is formed on one surface 21 of the second plate member 20 (hereinafter simply referred to as "surface 21").
  • the recess 23 is an annular groove extending continuously along the protrusion 13 so as to be able to receive the protrusion 13 .
  • the concave portion 23 is annular.
  • the dimension of the maximum depth D0 of the concave portion 23 with respect to the surface 21 of the second plate member 20 is set to at least the height H of the convex portion 13 or more so that the convex portion 13 can be received. (H ⁇ D0).
  • a center portion 27 of the surface 21 surrounded by the concave portions 23 is formed to protrude in a truncated cone shape so as to protrude above the surface 21 .
  • the center portion 27 may be formed to have a height that protrudes from the surface 21 with respect to the surface 21 as illustrated, or may be formed to have the same height as the surface 21 or be lower than the surface 21 .
  • the bottom surface 25 does not have to be parallel to the surface 21 as long as the condition (H ⁇ D0) is satisfied that the maximum depth D0 is equal to or greater than the height H of the protrusion 13 in the entire area of the bottom surface 25, and the bottom surface 25 may be curved. good too.
  • the inner surface of the recess 23 includes a bottom surface 25 , a first side wall surface 29 formed closer to the central portion 27 than the bottom surface 25 , and a second side wall surface 31 formed outside the bottom surface 25 .
  • a bottom surface 25 of the recess 23 is formed parallel to the surface 21 .
  • the first side wall surface 29 of the recess 23 forms an angle ⁇ 2 with respect to the normal direction of the surface 21, as shown in FIG.
  • the magnitude of the angle ⁇ 2 is 0° or more and 40° or less.
  • the second side wall surface 31 of the recess 23 forms an angle ⁇ 3 with respect to the normal direction of the surface 21 .
  • the magnitude of the angle ⁇ 3 is 0° or more and 55° or less.
  • angles ⁇ 2 and ⁇ 3 may be appropriately selected in consideration of the material of the second plate member 20 and the like.
  • the angle ⁇ 2 may be 20° or more and 35° or less
  • the angle ⁇ 3 may be 35° or more and 50° or less.
  • the surface 11 of the first plate member 10 and the surface 21 of the second plate member 20 are overlapped so as to face each other, so that the surface 11 of the first plate member 10 is formed with
  • the convex portion 13 and the concave portion 23 formed on the surface 21 of the second plate member 20 are engaged with each other.
  • This engagement restricts movement of the first plate member 10 along the surface 21 of the second plate member 20 .
  • the movement of the first plate member 10 in the direction along the surface 21 of the second plate member 20 (X direction, which is the horizontal direction in FIG. 2, or the direction perpendicular to the paper surface) is restricted, position.
  • the surface 11 of the first plate member 10 and the surface 21 of the second plate member 20 are in surface contact so as to be weldable.
  • the punched hole 15 of the first plate member 10 has a circular shape when viewed from the direction of the axis 15b (the Z direction in FIG. 2), and the convex portion 13 formed on the inner peripheral edge portion 15a of the punched hole 15 is , the axis 15b as a center axis.
  • the tip 13a of the projection 13 is formed in a circular shape having a predetermined diameter ⁇ a which is substantially the same as the diameter of the punched hole 15. As shown in FIG. Note that the predetermined diameter is set to 2 mm to 5 mm.
  • the recess 23 of the second plate member 20 is an annular groove capable of receiving the protrusion 13, and the protrusion 13 and the recess 23 are engaged.
  • the central axis of the annular shape of the concave portion 23 coincides with the axis 15b of the convex portion 13.
  • the depth D of the recessed portion 23 (based on the surface 21) of the second plate member 20 at the position facing the tip 13a of the projected portion 13 in the state where the projected portion 13 and the recessed portion 23 are engaged is the first The dimension is equal to or greater than the height H of the projection 13 with respect to the surface 11 of the plate member 10 (H ⁇ D).
  • the diameter ⁇ c at the position where the second side wall surface 31 of the concave portion 23 opens to the surface 21 of the second plate member 20 is, as shown in FIG. ⁇ b ( ⁇ c> ⁇ b) at the radially outermost position centered on the axis 15b in the range protruding from the surface of the .
  • This configuration allows the concave portion 23 to receive the convex portion 13 .
  • the tip 13a of the convex portion 13 may contact the inner surface of the concave portion 23 as shown in FIG.
  • the recess 23 may be formed so that the tip 13 a of the projection 13 contacts the first side wall surface 29 of the recess 23 .
  • the concave portion 23 is formed so as to be in surface contact with the surface 21 of the plate material 20 so as to be weldable.
  • the angle .theta.2 of the first side wall surface 29 of the recess 23 is smaller than the angle .theta.3 of the second side wall surface 31 (.theta.2 ⁇ .theta.3).
  • the tip 13a of the projection 13 is located at the position of .
  • the angle ⁇ 1 of the tip 13a of the projection 13 is set to an angle equal to or less than the angle ⁇ 3 of the second side wall surface 31 of the recess 23 ( ⁇ 1 ⁇ ⁇ 3) may be set.
  • FIG. 3 is a cross-sectional explanatory view for explaining the configuration of the punch press and the mold 110 used for processing the first plate material 10.
  • FIG. 4 is a cross-sectional explanatory view illustrating a state in which the convex portion 13 is formed on the first plate member 10 using the mold 110.
  • FIG. 5 is a cross-sectional explanatory view of the die mold 111 used when forming the convex portion 13 on the first plate member 10. As shown in FIG.
  • the convex portion 13 of the first plate member 10 is formed using a mold 110 that is used by being attached to a punch press (not shown).
  • a die 110 used for punching the punched hole 15 includes a die 111 having a chamfered surface 111b formed in an opening 111a and a punch 113 for punching the first plate material 10 in cooperation with the die 111 .
  • the die 111 is configured to be fixed to the lower turret (not shown) of the punch press. As shown in FIGS. 3 and 5, the upper surface 111c of the die 111 is a flat surface, and the surface 111 of the workpiece (the first plate member 10 before forming the convex portion 13) is placed on the upper surface 111c while being fixed to the punch press. It is configured so that it can be placed horizontally on the top.
  • the die 111 has an opening 111a that opens in the upper surface 111c and penetrates in the normal direction of the upper surface 111c.
  • a chamfered surface 111b is formed along the periphery of the opening 111a.
  • the depth from the upper surface 111c of the die 111 to the position where the chamfered surface 111b intersects the inner peripheral surface of the opening 111a is defined as the depth D1 of the chamfered surface 111b.
  • the depth D1 is set to 0.1 mm or more and 0.6 mm or less.
  • the inclination angle ⁇ 4 of the chamfered surface 111b with respect to the normal direction of the upper surface 111c is set to an angle that allows the shape of the tip 13a of the projection 13 to be formed at an acute angle ( ⁇ 1 ⁇ 90°).
  • the tilt angle ⁇ 4 is an acute angle.
  • the inclination angle ⁇ 4 of the chamfered surface 111b is also the second side of the recess 23 so that the angle ⁇ 1 of the tip 13a of the projection 13 is equal to or less than the angle ⁇ 3 of the second side wall surface 31 of the recess 23 ( ⁇ 1 ⁇ 3).
  • the angle may be set to be less than the angle ⁇ 3 of the wall surface 31 ( ⁇ 4 ⁇ 3).
  • the punch 113 has a cylindrical punch guide 115 that is vertically movably supported by the upper turret of the punch press.
  • a stripper plate 117 having a through hole 117a in the center is attached to the tip of the punch guide 115 (lower end in FIG. 3).
  • a retainer collar 121 having a through hole through which the punch body 119 can be inserted is provided on the rear end surface (upper end surface in FIG. 3) of the punch guide 115 .
  • the retainer collar 121 is attached to the punch guide 115 with an O-ring 121a interposed therebetween.
  • the punch 113 further includes a punch body 119 arranged inside the punch guide 115 and vertically movable with respect to the punch guide 115 .
  • the tip of the punch body 119 (lower end in FIG. 3) is a small-diameter punch tip 119a.
  • the punch body 119 extends vertically movably through the retainer collar 121, and a punch head 123 is screwed to the rear end (upper end in FIG. 3).
  • the punch body 119 is arranged in the punch guide 115 so that it can move up and down while the punch tip 119a is inserted through the through hole 117a of the stripper plate 117 at the lower end of the punch guide 115.
  • a stripper spring 125 is accommodated in a compressed state between the punch head 123 and the retainer collar 121 provided on the upper surface of the punch guide 115 .
  • the punch body 119 is urged upward by the compression repulsive force of the stripper spring 125 .
  • a cylindrical spring cover 127 that accommodates the stripper spring 125 is integrally fixed to the upper surface of the retainer collar 121 .
  • a stepped portion 127b that protrudes radially inward is formed on the inner peripheral surface of the upper end portion of the spring cover 127 .
  • the lower surface of the stepped portion 127b is in contact with the upper surface of a flange portion 123a formed on the punch head 123 and protruding radially outward.
  • the punch head 123 is pressed by the punch press.
  • the stripper plate 117 comes into contact with the upper surface of the first plate member 10 and presses the first plate member 10 .
  • the punch tip 119a punches out the first plate material 10, and the opening 111a of the die 111 arranged concentrically. enter inside.
  • a predetermined radial clearance is set between the outer peripheral surface of the punch tip 119 a and the inner peripheral surface of the opening 111 a of the die 111 . According to this clearance, a plastic flow portion where the material plastically flows is formed in the punching direction (lower surface side in FIG. 4) of the punched hole 15 of the first plate member 10 .
  • the plastic flow portion of the first plate member 10 formed by the action of the punch tip 119a is formed in the state where the punched holes 15 are formed in the chamfered surface 111b of the die 111 and the first plate member 10, as shown in FIG.
  • the convex portion 13 is formed on the inner peripheral edge portion 15a of the punched hole 15 in the first plate member 10 by being pressed by the side wall of the punch tip 119a.
  • the convex portion 13 is formed in a shape following an annular concave portion having a tip angle ⁇ 4 formed between the surface 11 of the first plate 10, the chamfered surface 111b, and the side wall of the punch tip 119a.
  • the surface of the first plate 10 opposite to the surface 11 on which the projections 13 are formed is in contact with the stripper plate 117, and the plastic flow portion is formed by the chamfered surface 111b and the punch tip 119a. pressed. Therefore, when the plastic flow portion is pressed by the chamfered surface 111b and the punch tip 119a, the convex portion 13 is formed with the back surface pressed by the stripper plate 117. FIG. With this configuration, the convex portion 13 is more reliably formed into a shape that follows the concave portion.
  • the punched holes 15 are formed in the first plate material 10 by punching.
  • plastic flow of the material occurs along the punched hole 15 in the first plate member 10 .
  • An inner peripheral edge portion 15a of the first plate member 10 is formed with a convex portion 13 which is a plastic flow portion generated by the plastic flow of the material.
  • the convex portion 13 is formed on the inner peripheral edge portion 15a of the punched hole 15 and protrudes in the punching direction of the punched hole 15, that is, in the plate thickness direction.
  • a concave portion 23 capable of receiving the convex portion 13 is formed on the surface 21 of the second plate member 20 .
  • a mold (not shown) used for forming the concave portion 23 is a molding mold used by being attached to a punch press.
  • the recess 23 is formed on the surface 21 of the second plate member 20 .
  • the recess 23 may be formed by coining, for example.
  • the molding die has a transfer portion (protrusion) for transferring the concave portion 23 to the surface of the second plate member 20 on the tip surface of the punch body.
  • the projecting portion may be annular such that the recessed portion 23 forms an annular groove extending along the projecting portion 13 (annular projecting portion) capable of receiving the projecting portion 13 .
  • the overall configuration of the molding die differs only in the configuration of the transfer portion, and the rest of the configuration is the same as that of a general molding die (stamping die). Therefore, detailed description of the overall configuration of the mold used for the recess 23 is omitted.
  • the positioning method of this embodiment can be implemented by forming the convex portion 13 and the concave portion 23 as described above. That is, in the positioning method of the present embodiment, the first plate member 10 is punched to form the convex portion 13 made of the plastic flow portion of the material of the first plate member 10 and protruding from the edge portion of the first plate member 10 in the punching direction. a step of forming recesses 23 capable of receiving the protrusions 13 in the surface 21 of the second plate 20; and a step of engaging the convex portion 13 of the first plate member 10 with the concave portion 23 of the second plate member 20 to restrict the movement of the first plate member 10 along the surface 21 of the second plate member 20 .
  • the punching process for the first plate material 10 is a process for forming a punched hole 15 penetrating in the plate thickness direction in a flat area inside the outer peripheral edge forming the outline of the first plate material 10 .
  • the convex portion 13 is formed on the inner peripheral edge portion 15 a of the punched hole 15 , which is the edge portion of the first plate member 10 .
  • the convex portion 13 of the first plate member 10 and the concave portion 23 of the second plate member 20 are engaged with each other. Positioned. Therefore, in order to position both plate members 10 and 20 without positional deviation, convex portions 13 are formed at a plurality of locations on the surface 11 of the first plate member 10, and corresponding plurality of protrusions 13 are formed on the surface 21 of the second plate member 20. A recess 23 is formed at the location. By engaging the protrusions 13 and the recesses 23 of both the plate members 10 and 20, the plate members 10 and 20 can be positioned without any displacement.
  • the convex portion 13 of the first plate member 10 protrudes in the plate thickness direction (punching direction).
  • the convex portion 13 can be formed by plastic flow of the material in the punching direction when the punched hole 15 of the first plate member 10 is formed by punching. Therefore, even when positioning a material with low plastic fluidity, the convex portion 13 having a sufficient height can be easily formed by causing the material to plastically flow in the punching direction.
  • the first plate member 10 is moved along the surface 21 of the second plate member 20 .
  • movement relative movement
  • a part of the surface 21 of the second plate member 20 is raised toward the first plate member 10, and the raised portion is formed in the first plate member 10 by punching holes 15 or recesses 23. do not need to enter the In other words, it is not necessary to flow the material of the second plate member 20 to form the raised portion. Therefore, according to this positioning structure, more reliable positioning can be realized even when the first plate member 10 and the second plate member 20 are made of a material with low plastic flowability.
  • the convex portion 13 is an annular convex portion extending along the circumferential direction of the punched hole 15 and the concave portion 23 is an annular groove extending along the convex portion 13, by engaging the concave portion 23 and the convex portion 13, , the two plates 10, 20 are positioned more accurately.
  • the depth D of the concave portion 23 based on the surface 21 of the second plate 20 is formed to be greater than or equal to the height H of the convex portion 13 based on the surface 11 of the first plate 10 facing the surface 21 of the second plate 20.
  • the surfaces 11 and 21 of the two plate materials 10 and 20 can be aligned (surface contact), so that the two plate materials 10 and 20 can be easily welded in the positioned state. .
  • the tip 13a of the projection 13 having an acute angle contacts the inner surface of the recess 23, so that the projection 13 and the recess 23 are separated from each other. are engaged and positioned, the positioning of the two plates 10, 20 can be performed more accurately.
  • the die 111 having the chamfered surface 111b formed in the opening 111a and the die 111 cooperate with each other in the punching process.
  • a punch 113 for punching the first plate 10 is used, and the convex portion 13 is formed by pressing the plastic flow portion that has been plastically flowed by the action of the punch 113 by the punch 113 and the chamfered surface 111b.
  • the clearance between the punch tip 119a of the punch 113 for punching the first plate material 10 and the opening 111a of the die 111 on which the first plate material 10 can be placed is and by defining the depth D1 of the chamfered surface 111b with reference to the surface of the die 111, the height H of the convex portion 13 with reference to the surface 11 of the first plate member 10 is formed at a predetermined height. .
  • a convex portion 13 which is a plastic flow portion of the first plate member 10 formed by the action of the punch tip 119a of the punch 113 for punching, is formed in a shape following the annular concave portion. Therefore, by adjusting the amount of plastic flow of the metal by adjusting the clearance between the punch tip 119a and the opening 111a of the die 111, and by changing the depth D1 of the chamfered surface 111b of the die 111, the projection 13 with a desired height can be obtained. can be obtained. In order to heighten the convex portion 13, the clearance is increased and the chamfered surface 111b is deepened. However, if the clearance is excessive, the convex portion 13 will not form an acute angle. That is, according to this method, the height H of the projection 13 can be easily changed by changing the clearance between the punch tip 119a and the opening 111a of the die 111 and the depth D1 of the chamfered surface 111b.
  • the depth D1 of the chamfered surface 111b is selected within a range in which the desired height of the projection 13 and the depth D of the recess 23 of the second plate 20 satisfy a predetermined height H that satisfies the relational expression H ⁇ D. be.
  • convex portions are formed without forming through holes in the workpiece.
  • the molds and devices that can be used to form convex portions with conventional positioning structures and positioning methods have, for example, the accuracy of fine adjustment of the height of the punch head, or the accuracy of variations in the bottom dead center of the device. High precision was required.
  • the projections 13 are formed on the surface 11 of the first plate member 10 by forming the punched holes 15 in the first plate member 10 .
  • the convex portion 13 that can be used for positioning is formed on the first plate 10 without considering the accuracy of fine adjustment of the height of the punch head or the accuracy of variations in the bottom dead center of the apparatus. It can be formed on surface 11 .
  • the metal is It is possible to prevent part of the metal from escaping to the edge of the plate during plastic flow.
  • FIG. 6 is an explanatory diagram of a state before engaging and positioning the convex portion 13A of the first plate member 10A and the concave portion 23A of the second plate member 20A according to the modification.
  • FIG. 7 is an explanatory diagram of a positioning structure according to a modified example in which the protrusion 13A of the first plate member 10A and the recess 23A of the second plate member 20A are engaged and positioned.
  • the angle ⁇ 2A of the first side wall surface 29A on the central portion side is greater than the angle ⁇ 3A of the second side wall surface 31A. ( ⁇ 3A ⁇ 2A), and the inner surface of the concave portion 23A that can abut the tip 13Aa of the convex portion 13A in a state where the convex portion 13A of the first plate member 10A and the concave portion 23A of the second plate member 20A are engaged.
  • the positioning structure differs from the positioning structure of the embodiment in that the portion is located near the intersection between the second side wall surface 31A and the bottom surface 25A where the angle ⁇ 3A is small.
  • the tips 13a, 13Aa of the projections 13, 13A are aligned with the bottom surfaces 25, 25A, Alternatively, it is located in the vicinity of the bottom surfaces 25, 25A of the first side wall surface 29A or the second side wall surface 31A of the recesses 23, 23A.
  • the tips 13a, 13Aa of the projections 13, 13A only need to be located near the inner surfaces of the recesses 23, 23A.
  • the height H of the protrusions 13 and 13A and the depth D of the recesses 23 and 23A are It is preferable that the relational expression H ⁇ D/2 is satisfied.
  • the protrusions 13 and 13A and the recesses 23 , 23A may be pressed in the plate thickness direction to bring the tips 13a, 13Aa of the protrusions 13, 13A into close contact with the inner surfaces of the recesses 23, 23A.
  • the first plate member 10 and the second plate member 20 in the engaged state are pressed in the plate thickness direction.
  • the tips 13a and 13Aa of the projections 13 and 13A may be brought into close contact with the recesses 23 and 23A.
  • the angles .theta.1 and .theta.1A may be formed at acute angles equal to or less than a predetermined angle so that the tips 13a and 13Aa are easily brought into close contact with the recesses 23 and 23A by pressing in the plate thickness direction.
  • the angles ⁇ 1 and ⁇ 1A may be 30° or less.
  • the shape of the projections and the shape of the recesses are not limited to annular shapes such as the shapes of the projections 13 and 13A and the shapes of the recesses 23 and 23A.
  • the shape of the convex portion and the shape of the concave portion may be annular such as square or oval.
  • the convex portion may be formed using a die in which a chamfered surface is intermittently formed on the peripheral edge portion of the opening. Then, the recess may be formed using a tip-shaped punch capable of forming a groove at a position capable of receiving the protrusion so that the protrusion and the recess can be engaged with each other.
  • FIG. 8 is a diagram illustrating a state in which the protrusion 53 of the first plate member 50 and the recess 63 of the second plate member 60 are engaged and positioned.
  • FIG. 9 is a diagram showing the AA cross section of FIG.
  • FIG. 10 is an enlarged view of a region surrounded by broken lines in FIG.
  • FIG. 11 is a diagram illustrating a state before engaging and positioning the convex portion 53 of the first plate member 50 and the concave portion 63 of the second plate member 60 .
  • the positioning structure according to the present embodiment is provided at the edge of the first plate member 50, and consists of a plastic flow portion of the material of the first plate member 50 that protrudes in the plate thickness direction from one surface 51 side of the first plate member 50.
  • a convex portion 53 and a concave portion 63 formed on one surface 61 of the second plate member 60 and capable of receiving the convex portion 53 are provided.
  • the first plate member 50 moves along one surface 61 of the second plate member 60 by overlapping the first plate member 50 so as to face the surface 61 and engaging the convex portion 53 of the first plate member 50 with the concave portion 63 of the second plate member 60 . to regulate.
  • the convex portion 53 is provided on the outer peripheral edge portion 50 a forming the contour of the first plate member 50 , which is the edge portion of the first plate member 50 .
  • the positioning structure according to the second embodiment differs from the positioning structure according to the first embodiment in that the convex portion 53 is provided on the outer peripheral edge portion 50 a of the first plate member 50 .
  • the following description will focus on differences from the first embodiment.
  • the first plate member 50 is formed, for example, in a rectangular shape.
  • the outer peripheral edge portion 50a forming the outline of the first plate member 50 is composed of a pair of parallel long sides 50a1 and 50a2 and a pair of parallel short sides 50a3 and 50a4.
  • the second plate member 60 is also formed in a rectangular shape, and the second plate member 60 is one size larger than the first plate member 50 .
  • the shape and size of the second plate member 60 are not limited to this.
  • a convex portion 53 is formed on the outer peripheral edge portion 50a of the first plate member 50 so as to protrude along the plate thickness direction (downward direction in FIG. 9).
  • the convex portion 53 protrudes so as to stand on one surface 51 (hereinafter simply referred to as “surface 51”) of the first plate member 50 .
  • the convex portion 53 is formed from a plastically flowing portion that is the material of the first plate member 50 that plastically flows when the outer peripheral edge portion 50a is formed by punching.
  • two protrusions 53 are provided for one longitudinal side 50a1, and one protrusion 53 is provided for one short side 50a3.
  • the convex portion 53 is a linear convex portion with a predetermined length that extends along the outer peripheral edge portion 50a (the long side 50a1 or the short side 50a3). In other words, when the surface 51 of the first plate member 50 is viewed from the second plate member 60 side (from below in FIG. 9), the convex portion 53 is formed in a straight line.
  • the convex portion 53 is not formed over the entire circumference of the outer peripheral edge portion 50a, but is formed in a part of the outer peripheral edge portion 50a.
  • the portion corresponding to the convex portion 53 is deformed so as to be slightly pulled toward the surface 51 by the action of the punch during processing.
  • the portion located on the opposite side of the convex portion 53 may include a deformed portion called so-called "slip" deformation.
  • a concave portion 63 capable of receiving the convex portion 53 of the first plate member 50 is formed on one surface 61 of the second plate member 60 (hereinafter simply referred to as "surface 61").
  • the recess 63 is a linear groove extending along the protrusion 53 so as to receive the protrusion 53 .
  • a concave portion 63 is formed in a straight line.
  • three concave portions 63 are provided on the surface 61 of the second plate member 60 corresponding to the three convex portions 53 provided on the first plate member 50, and the positions of the three concave portions 63 are , corresponding to the positions of the three projections 53 provided on the .
  • the maximum depth D0 of the concave portion 63 with respect to the surface 61 of the second plate member 60 is set so that the convex portion 53 can be received.
  • the dimension is set to be equal to or greater than the height H from the surface 51 to the tip 53a of the projection 53 (H ⁇ D0).
  • the inner surface of the recess 63 has a bottom surface 64 , a first side wall surface 65 formed inside the bottom surface 64 , and a second side wall surface 66 formed outside the bottom surface 64 .
  • the relationship between the bottom surface 64, the first side wall surface 65, and the second side wall surface 66 in the concave portion 63 according to the second embodiment is the same as in the first embodiment. It is the same as the relationship between the bottom surface 25, the first side wall surface 29, and the second side wall surface 31 in the recess 23 shown.
  • the surface 51 of the first plate member 50 and the surface 61 of the second plate member 60 are overlapped so as to face each other, so that the surface 61 of the first plate member 50
  • the convex portion 53 formed on the second plate member 60 engages with the concave portion 63 formed on the surface 61 of the second plate member 60 .
  • This engagement restricts movement of the first plate member 50 along the surface 61 of the second plate member 60 .
  • the first plate member 50 is positioned with respect to the second plate member 60 while its movement in the direction along the surface 61 of the second plate member 60 (horizontal direction and vertical direction in FIG. 8) is restricted.
  • the surface 51 of the first plate member 50 and the surface 61 of the second plate member 60 are in surface contact.
  • FIG. 12 to 14 are plan views explaining a method of forming the convex portion 53.
  • FIG. The mold 110 for molding the convex portion 53 shown in the first embodiment can also be applied to this embodiment.
  • the shape of the punch tip 119a of the punch 113 when viewed from the cutting edge side is rectangular, and the shape of the opening 111a opening in the upper surface 111c of the die 111 is rectangular. are different.
  • the first plate material 50 is cut out from a sheet metal base material 200 . First, a method of cutting out the first plate material 50 from the base material 200 by punching will be described.
  • a plurality of rectangular openings BH are formed in the base material 200 by punching using a required punching die.
  • a plurality of openings BH are formed along the outline of the first plate member 50 (outer peripheral edge 50a).
  • the four corners of the first plate member 50 are left to form micro joints Jm, which are minute connecting portions. Thereby, the first plate material 50 and the base material 200 are kept connected. In addition, the first plate member 50 and the base material 200 are connected by wire joints Jw wider than the micro joints Jm without forming the openings BH at the portions (three places) where the convex portions 53 are formed. leave it to
  • a die 110 including a die 111 and a punch 113 is used to punch out the wire joint Jw.
  • the shape punched by the punch tip 119a is indicated by "Pc".
  • the base material 200 to which the first plate material 50 is connected is positioned so that the punched end face punched by the punch tip 119 a corresponds to the outline of the first plate material 50 .
  • the first plate material 50 is separated from the base material 200 by cutting the micro joint Jm by a well-known method. As a result, the first plate member 50 having the protrusions 53 is produced.
  • FIG. 15 to 17 are plan views explaining a method of forming the recess 63.
  • FIG. 15 to 17 are plan views explaining a method of forming the recess 63.
  • the base material 210 is subjected to coining processing using a molding die to form recesses 63 corresponding to the positions and number of the protrusions 53 . Since the concave portion 63 is formed by coining by coining, a bulging portion S (one-dot chain line) bulging in the plate thickness direction is generated at a portion adjacent to the concave portion 63 .
  • the bulging portion S is generated by plastic flow of the material of the gouged portion when forming the concave portion 63 and bulging in the plate thickness direction.
  • the crushing process the material of the bulging portion S is uniformly plastically flowed to the peripheral member, and the degree of bulging is suppressed to a level that does not pose a practical problem.
  • the periphery of the recess 63 is substantially flattened.
  • a plurality of rectangular openings BH are formed in the base material 210 by punching using a required punching die.
  • a plurality of openings BH are formed along the contour of the second plate member 60 .
  • the four corners of the second plate member 60 are left to form micro joints Jm, which are minute connecting portions.
  • the second plate material 60 and the base material 210 are kept connected.
  • This micro joint Jm is cut at the final stage of processing to separate the second plate material 60 from the base material 210 . Thereby, the second plate material 60 having the concave portion 63 is created.
  • the first plate material 50 is not limited to the method of cutting out from the base material 200 by punching, but may be cut out from the base material 200 by cutting with a laser beam as described below.
  • 18 to 20 are plan views explaining a method of forming the convex portion 53. FIG.
  • the base material 200 is cut by the laser beam by irradiating the laser beam along the contour (outer peripheral edge portion 50a) of the first plate material 50. As shown in FIG. At this time, the base material 200 is cut so as to form a protruding portion Ea that extends outside the contour of the first plate member 50 instead of following the contour of the first plate member 50 at the portion where the convex portion 53 is to be formed. Further, by cutting the first plate material 50 so as to leave the four corners uncut, micro joints Jm, which are minute connecting portions, are formed.
  • a mold 110 including a die 111 and a punch 113 is used to punch out a predetermined range including the projecting portion Ea.
  • the shape punched by the punch tip 119a is indicated by "Pc".
  • the base material 200 to which the first plate material 50 is connected is positioned so that the punched end face punched by the punch tip 119 a corresponds to the outline of the first plate material 50 .
  • a plastic flow portion is formed in the punching direction where the material plastically flows.
  • the plastic flow portion of the first plate 50 formed by the action of the punch tip 119a is pressed by the chamfered surface 111b of the die 111 and the sidewall of the punch tip 119a.
  • a convex portion 53 is formed on a portion of the outer peripheral edge portion 50a forming the outline of the first plate member 50.
  • the micro joint Jm is cut by a known method to separate the first plate material 50 from the base material 200 .
  • the first plate member 50 having the protrusions 53 is produced.
  • the method of cutting out the second plate material 60 from the base material 210 is not limited to the method of punching out by punching, but may be a method of cutting with a laser beam.
  • the positioning method of this embodiment can be implemented by forming the convex portion 53 and the concave portion 63 as described above. That is, in the positioning method of the present embodiment, the first plate member 50 is punched to form the convex portion 53 made of the plastic flow portion of the material of the first plate member 50 and protruding in the punching direction from the edge of the first plate member 50. a step of forming recesses 63 capable of receiving the protrusions 53 in the surface 61 of the second plate member 60; and a step of engaging the convex portion 53 of the first plate member 50 with the concave portion 63 of the second plate member 60 to restrict the movement of the first plate member 50 along the surface 61 of the second plate member 60 .
  • the punching process for the first plate material 50 is a process for forming the outer peripheral edge portion 50a that forms the outline of the first plate material 50 .
  • a convex portion 53 is formed on the outer peripheral edge portion 50 a that is the edge portion of the first plate member 50 .
  • the convex portion 53 of the first plate member 50 protrudes in the plate thickness direction (punching direction).
  • the convex portion 53 can be formed by plastic flow of the material in the punching direction when forming the outer peripheral edge portion 50a of the first plate member 50 by punching. Therefore, even when positioning a material with low plastic fluidity, the convex portion 53 having a sufficient height can be easily formed by causing the material to plastically flow in the punching direction.
  • the first plate member 50 is moved along the surface 61 of the second plate member 60 .
  • movement relative movement
  • a part of the surface 51 of the first plate member 50 is gouged out, and the material is plastically flowed to cut and raise in the plate thickness direction.
  • the convex portion 53 of the present embodiment the convex portion 53 of the first plate member 50 protrudes in the punching direction due to the plastic flow of the material, so that the convex portion 53 having a sufficient height can be easily formed. be able to. This makes it possible to achieve more reliable positioning.
  • the convex portion 53 is a linear convex portion extending along the outer peripheral edge portion 50 a and is provided in a part of the outer peripheral edge portion, and the concave portion 63 is formed along the convex portion 53 . It is a linear groove that extends. According to this positioning structure, the two plate members 50 and 60 are positioned more accurately by engaging the concave portion 63 and the convex portion 53 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention comprend : une partie en saillie (13) qui est formée par une partie d'écoulement de matière plastique d'un matériau pour un premier matériau de plaque (10) et qui fait saillie dans la direction de pénétration d'un trou de perforation (15) disposé sur le premier matériau de plaque (10), à partir d'un bord circonférentiel interne (15a) du trou de perforation (15) sur un côté de surface (11) du premier matériau de plaque (10) ; et une partie évidée (23) qui est formée dans une surface (21) d'un second matériau de plaque (20) et qui est apte à recevoir la partie en saillie (13). Le mouvement du premier matériau de plaque (10) le long de la première surface (21) du second matériau de plaque (20) est limité par la mise en prise de la partie en saillie (13) du premier matériau de plaque (10) avec la partie évidée (23) du second matériau de plaque (20).
PCT/JP2022/043665 2021-12-02 2022-11-28 Structure de positionnement et procédé de positionnement WO2023100782A1 (fr)

Applications Claiming Priority (4)

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JP2021196416 2021-12-02
JP2021-196416 2021-12-02
JP2022-184685 2022-11-18
JP2022184685A JP2023082665A (ja) 2021-12-02 2022-11-18 位置決め構造、及び位置決め方法

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973037U (ja) * 1982-11-06 1984-05-17 太平洋工業株式会社 軟鋼薄板の抜きバ−リング金型
JPH04134291U (ja) * 1991-02-18 1992-12-14 横河電機株式会社 溶接位置決め構造
JPH0626737B2 (ja) * 1989-10-23 1994-04-13 中村製作所株式会社 板材への軸部成形方法
JPH07116745A (ja) * 1993-10-25 1995-05-09 Akebono Brake Ind Co Ltd バーリング加工方法及びバーリング加工装置
JP2002192262A (ja) * 2000-12-25 2002-07-10 Nippon Reinz Co Ltd 金属板にフックを形成する方法
US20080235932A1 (en) * 2007-03-27 2008-10-02 Gm Global Technology Operation, Inc. Method for positioning and joining panels
JP5555504B2 (ja) * 2010-02-15 2014-07-23 株式会社田中製作所 ボス部を備えた物品の製造方法
JP2019115922A (ja) * 2017-12-27 2019-07-18 株式会社アマダホールディングス 板材の接合位置決め方法及び板材の接合構造
US20190314933A1 (en) * 2018-04-17 2019-10-17 C.R.F. Società Consortile Per Azioni Method for joining an element of metal material to an element of plastic material, and a hybrid component obtained by this method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973037U (ja) * 1982-11-06 1984-05-17 太平洋工業株式会社 軟鋼薄板の抜きバ−リング金型
JPH0626737B2 (ja) * 1989-10-23 1994-04-13 中村製作所株式会社 板材への軸部成形方法
JPH04134291U (ja) * 1991-02-18 1992-12-14 横河電機株式会社 溶接位置決め構造
JPH07116745A (ja) * 1993-10-25 1995-05-09 Akebono Brake Ind Co Ltd バーリング加工方法及びバーリング加工装置
JP2002192262A (ja) * 2000-12-25 2002-07-10 Nippon Reinz Co Ltd 金属板にフックを形成する方法
US20080235932A1 (en) * 2007-03-27 2008-10-02 Gm Global Technology Operation, Inc. Method for positioning and joining panels
JP5555504B2 (ja) * 2010-02-15 2014-07-23 株式会社田中製作所 ボス部を備えた物品の製造方法
JP2019115922A (ja) * 2017-12-27 2019-07-18 株式会社アマダホールディングス 板材の接合位置決め方法及び板材の接合構造
US20190314933A1 (en) * 2018-04-17 2019-10-17 C.R.F. Società Consortile Per Azioni Method for joining an element of metal material to an element of plastic material, and a hybrid component obtained by this method

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