JP6354569B2 - Bending device for workpiece - Google Patents

Description

  The present invention relates to a bending apparatus for a workpiece.

2. Description of the Related Art Conventionally, there is known a workpiece processing apparatus for bending a workpiece using a punch that reciprocates with respect to a stage on which a linear workpiece is set. In the bending apparatus for the workpiece, the punch that can be inserted into the recess of the set surface of the stage on which the workpiece is set is pushed in the direction of rising from the set surface by pushing the workpiece positioned immediately above the recess. Bend the workpiece. On the other hand, in the bending apparatus for the workpiece, bending in a direction parallel to the set surface cannot be performed.
For example, in a bending apparatus for a workpiece described in Patent Document 1, a flat stage having an extrusion hole for extruding a linear workpiece to one surface side, provided around the extrusion hole, and extruded from the extrusion hole. It is possible to bend the processed member in a desired direction on the stage by providing a plurality of rollers for applying a pressing force to the processed member so that the processed member is bent in a direction parallel to one surface. .

Japanese Patent Laid-Open No. 9-295066

  In the workpiece bending apparatus described in Patent Document 1, the plurality of rollers are provided on four sides of the extrusion holes and abut against the workpieces extruded from the extrusion holes located at the centers of the plurality of rollers. For this reason, in order to bend the workpiece in a desired direction, a plurality of rollers are individually operated toward one point, so that the configuration of the apparatus and the control of the rollers are complicated.

  An object of the present invention is to provide an apparatus for bending a workpiece to bend a linear workpiece in a desired direction with a simple configuration.

The present invention is a bending apparatus for a workpiece to bend a linear workpiece in a desired direction, and includes a member supply unit that supplies the workpiece and a set surface on which the workpiece is placed. Provided on the opposite side of the first punch of the workpiece, the first punch that can be inserted into the first hole that opens to the set surface of the stage while contacting the workpiece to be placed on the set surface And a first control part that controls the insertion depth of the first punch into the first hole.
The bending apparatus for a workpiece according to the present invention includes a first restricting portion that restricts the movement of the first punch on the member supply portion side of the first intermediate portion of the workpiece, and the reciprocating movement direction of the first punch. A first regulating surface that has a first inclined surface that is inclined with respect to the first intermediate portion and has a first inclined portion that can contact the counter member supply portion side of the first intermediate portion. The angle formed by the cross-sectional shape parallel to the set surface and the cross-sectional shape parallel to the set surface of the first inclined surface is from the side first inserted into the first hole of the first punch to the first hole of the first punch. It is characterized by becoming smaller as it goes to the side opposite to the side to be inserted first.

  The bending apparatus for a workpiece according to the present invention includes a first punch that can be inserted into a first hole that opens on the set surface side of the stage while being in contact with the workpiece placed on the set surface. When the first punch is inserted into the first hole, the member supply portion side of the first intermediate portion of the workpiece is sandwiched between the first restriction portion and the first starting portion of the first punch, and the first intermediate portion Movement is restricted. Moreover, the 1st inclination part which a 1st punch has contact | abuts to the counter member supply part side of a 1st intermediate part. The first punch has an angle formed by a cross-sectional shape parallel to the set surface of the first restricting surface of the first restricting portion and a cross-sectional shape parallel to the set surface of the first inclined surface of the first inclined portion. The first hole is formed so as to become smaller from the side first inserted into the first hole toward the side opposite to the side first inserted into the first hole of the first punch. As a result, the angle formed by the first regulating surface and the first inclined surface that contacts the workpiece is changed according to the depth at which the first punch is inserted into the first hole, and the member supply portion of the first intermediate portion The bending angle of the first intermediate portion formed by the side and the counter member supply portion side of the first intermediate portion changes. Therefore, in the bending apparatus for a workpiece of the present invention, the depth of insertion of the first punch into the first hole having the first regulating surface and the first inclined surface whose angle changes in the reciprocating direction of the first punch. And the workpiece can be bent in a desired direction along the set surface.

It is a schematic diagram of the bending apparatus of the to-be-processed member by 1st embodiment of this invention. It is a schematic diagram of the processed member with which the bending apparatus of the processed member by 1st embodiment of this invention is provided. It is a perspective view of the processed member with which the bending apparatus of the processed member by 1st embodiment of this invention is provided. It is a schematic diagram explaining the change of the cross-sectional shape of the processed member with which the bending apparatus of the processed member by 1st embodiment of this invention is provided. It is a schematic diagram of the set surface which the stage with which the bending apparatus of the to-be-processed member by 1st embodiment of this invention is provided. It is a schematic diagram explaining the process of the bending method of the to-be-processed member by 1st embodiment of this invention. It is a schematic diagram explaining the middle of the process of the bending method of the to-be-processed member by 1st embodiment of this invention. It is a schematic diagram of the workpiece processed by the bending method by the bending method of the workpiece according to the first embodiment of the present invention. It is the schematic diagram of a part of bending apparatus of the workpiece by 2nd embodiment of this invention, and the schematic diagram explaining the process of the bending method of a workpiece. It is a schematic diagram of a part of a bending apparatus for a workpiece according to a third embodiment of the present invention and a schematic diagram for explaining a process of a bending method for the workpiece. It is a partial schematic diagram of the bending apparatus of the workpiece of a comparative example.

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

(First embodiment)
A bending apparatus and a bending method for a workpiece according to a first embodiment of the present invention will be described with reference to FIGS. The bending apparatus 1 as the “working member bending apparatus” according to the first embodiment is bent into a desired shape by applying a pressing force to a corresponding portion of the linear member 11 as a single “working member”. It is a device that performs processing.
FIG. 1 shows a schematic diagram of a bending apparatus 1 according to the first embodiment. The bending apparatus 1 includes a stage 10, punches 20, 30, 40, a punch support unit 12, a pressing unit 14, starting point units 25, 35, 45, a member supply unit 16, a “first control unit”, and a “second control unit”. The control unit 18 and the like.

The stage 10 is placed on a horizontal surface such as a table surface, for example. The stage 10 has a set surface 100 on which a linear member 11 supplied by a member supply unit 16 described later is placed. That is, the set surface 100 is substantially parallel to the horizontal plane, but the relationship between the set surface 100 and the horizontal plane is not limited to this.
The stage 10 has a plurality of insertion holes having openings in the set surface 100. In the first embodiment, three insertion holes are provided in accordance with the number of punches. The cross-sectional shape parallel to the horizontal plane of the insertion holes 101, 102, 103 is L-shaped (see FIG. 5). The insertion hole 101 corresponds to a “first hole” recited in the claims. The insertion hole 102 corresponds to a “second hole” recited in the claims.

  The punches 20, 30, and 40 are substantially rod-shaped members. The punches 20, 30 and 40 are arranged in this order from the member supply unit 16 side of the bending apparatus 1. The punches 20, 30, and 40 are provided so as to be inserted into the insertion holes 101, 102, and 103 while abutting the linear member 11 placed on the set surface 100. The punch 20 corresponds to a “first punch” recited in the claims. The punch 30 corresponds to a “second punch” recited in the claims.

FIG. 2 shows a schematic diagram of the punch 20. FIG. 2A is a schematic view of the punch 20 supported by the punch support portion 12 as viewed from the insertion hole 101 side. FIG. 2C is a schematic view of the punch 20 supported by the punch support portion 12 as viewed from the member supply portion side. FIG. 3 shows a perspective view of the punch 20. For convenience, in FIGS. 2A, 2B, and 3, the side on which the member supply unit 16 is provided in the punch 20 supported by the punch support unit 12 is referred to as “member supply unit side”, and The side opposite to the member supply unit 16 is shown as the “counter member supply unit side”. The punch 20 includes a punch base 21, a restricting portion 22 as a “first restricting portion”, an inclined portion 23 as a “first inclined portion”, and the like.
The punch base 21 is a portion having the largest outer diameter in the punch 20 formed in a substantially rectangular parallelepiped shape. The punch base 21 is engaged with the punch support portion 12 so that the relative position of the punch 20 with respect to the punch support portion 12 is fixed.

  The restricting portion 22 is formed in a rectangular parallelepiped shape extending from the surface 211 on the stage 10 side of the punch base 21 toward the stage 10 in the punch 20 supported by the punch supporting portion 12. The restricting portion 22 has a restricting surface 221 as a “first restricting surface” for sandwiching the linear member 11 between the restricting portion 22 and a starting point portion 25 described later (see FIG. 2A). .

  The inclined portion 23 is formed so as to extend from the surface 211 of the punch base 21 on the stage 10 side toward the stage 10. The inclined portion 23 has an inclined surface 231 as a “first inclined surface” that is connected to the regulating surface 221 and is inclined with respect to the central axis CA20 of the punch 20 parallel to the reciprocating direction of the punch 20 (FIG. 2B). reference). The linear member 11 contacts the inclined surface 231.

As shown in FIG. 3, the inclined portion 23 is formed in a substantially quadrangular pyramid shape whose cross-sectional area increases from the side where the punch 20 is first inserted into the insertion hole 101 toward the punch base 21. FIG. 3 shows surface shape lines SL1, SL2, SL3, SL4, SL5, SL6, SL7, and SL8 that pass through the regulating surface 221 and the inclined surface 231 so that the connection relationship between the regulating unit 22 and the inclined unit 23 can be understood. . The surface shape line SL1 is a surface shape line on the side where the punch 20 is first inserted into the insertion hole 101, and the surface shape line SL8 is a surface shape line on the punch base 21 side.

FIG. 4 shows a cross-sectional shape perpendicular to the central axis CA20 of the punch 20. In FIG. 4, the cross-sectional shape of the insertion hole 101 is indicated by a two-dot chain line in accordance with the cross-sectional shape of the punch 20.
The plurality of cross-sectional shapes shown in FIG. 4 are cross-sectional shapes that change from the side where the punch 20 is first inserted into the insertion hole 101 (FIG. 4A) toward the punch base 21 side (FIG. 4E). Show. In the punch 20, as shown in FIG. 4, the angle formed by the cross-sectional shape perpendicular to the central axis CA <b> 20 of the restricting surface 221 of the restricting portion 22 and the cross-sectional shape perpendicular to the central axis CA <b> 20 of the inclined surface 231 of the inclined portion 23 is It becomes smaller as it goes from the side first inserted into the insertion hole 101 of the punch 20 toward the punch base 21 (angles θb, θc, θd, θe in FIG. 4).

  Although the configuration of the punch 20 has been described in detail here, the other punches 30 and 40 have the same configuration.

  Returning to FIG. 1, the punch support portion 12 is provided above the stage 10. The punch support unit 12 supports the punches 20, 30, and 40. The punch support part 12 has a cylindrical part 121 into which an end 104 on the outer side is slidably inserted. Moreover, the punch support part 12 has the 1st support | pillar 122 inserted so that sliding to the sliding hole 105 which the stage 10 has is possible. Thereby, the punch support part 12 can reciprocate with respect to the stage 10.

  The pressing portion 14 is provided on the stage 10 side of the punch support portion 12. The holding part 14 is provided in the punch support part 12 through the second support | pillar 123 which the punch support part 12 has. A spring 141 is provided between the pressing portion 14 and the punch support portion 12. The spring 141 urges the pressing portion 14 so that the linear member 11 is pressed against the set surface 100.

  The starting point portions 25, 35, 45 are provided in the vicinity of the insertion holes 101, 102, 103. In the first embodiment, the starting points 25 and 45 are provided on the set surface 100. Further, the starting point portion 35 is formed in a rod shape and is provided so as to be inserted into the insertion hole 106 of the stage 10 in conjunction with the reciprocating movement of the punch 30. When the linear member 11 comes into contact with the punches 20, 30, 40 inserted into the insertion holes 101, 102, 103, the starting points 25, 35, 45 come into contact with the punches 20, 30, 40 of the linear member 11. It abuts on the opposite side to the side. At this time, the starting point portions 25, 35, and 45 serve as starting points for bending the linear member 11. The starting point portion 25 corresponds to a “first starting point portion” recited in the claims. The starting point portion 35 corresponds to a “second starting point portion” recited in the claims.

  As shown in FIG. 1, the member supply unit 16 is provided outside the stage 10 and the punch support unit 12. The member supply unit 16 supplies the linear member 11 onto the set surface 100 as shown in FIG.

  The control unit 18 is electrically connected to the member supply unit 16 and generates a driving force for the punch support unit 12 to reciprocate with respect to the stage 10, a “first control unit” and a “second control unit”. The drive unit 181 is electrically connected. The control unit 18 controls the supply speed of the linear member 11 in the member supply unit 16 and also controls the insertion depth of the punches 20, 30, 40 into the insertion holes 101, 102, 103.

Next, the operation of the bending apparatus 1 will be described with reference to FIGS. 5 to 8, the side on which the member supply unit 16 is provided is shown as “member supply unit side”, and the side opposite to the side on which the member supply unit 16 is provided is called “counter member supply unit side”. Show.
First, the linear member 11 is set on the insertion hole 101 side of the starting portion 25 (FIGS. 5 and 6 (a)). At this time, if the portion that is set in the vicinity of the insertion hole 101 and the starting point portion 25 of the linear member 11 and is subjected to bending is referred to as the first intermediate portion 111 of the linear member 11 for convenience, The member supply part side of the intermediate part 111 is in contact with the starting point part 25.

  Next, the insertion of the punch 20 into the insertion hole 101 is started. As shown in FIG. 4A, only the restricting portion 22 is provided on the opposite side of the punch 20 to the side connected to the punch base 21, so that the restricting surface 221 contacts the linear member 11 (FIG. 6). (B)). Thereby, the member supply part side of the first intermediate part 111 is sandwiched between the restriction part 22 and the starting point part 25 of the punch 20, and the movement with respect to the stage 10 is restricted.

  Further, when the punch 20 is inserted into the insertion hole 101, the counter member supply portion side of the first intermediate portion 111 contacts the inclined surface 231. In the punch 20, when the insertion depth of the punch 20 into the insertion hole 101 is increased, the angle formed by the regulating surface 221 and the inclined surface 231 gradually decreases as shown in FIG. The counter member supply part side of the first intermediate part 111 is gradually bent with respect to the member supply part side of the first intermediate part 111. In the state shown in FIG. 6C, the first intermediate portion 111 is bent by the first intermediate portion 111 because, for example, the regulating portion 22 and the inclined portion 23 having the cross-sectional shape of FIG. The angle is about the angle θc.

  In the bending process of the first embodiment, the first intermediate part 111 is bent so as to be in the state shown in FIG. 6C, and then the second intermediate part 112 of the linear member 11 is bent. In the bending apparatus 1, by further inserting the punch 20 into the insertion hole 101, as shown in FIG. 6D, the bending angle of the first intermediate portion 111 is set to, for example, the regulating surface 221 shown in FIG. And an angle θe formed by the inclined surface 231 can be substantially perpendicular.

  The shape of the linear member 11 when the bending of the first intermediate portion 111 is completed is shown in FIG. In the linear member 11, only the first intermediate portion 111 is bent by the punch 20 and the starting portion 25, and the starting portion 35 is located on the side opposite to the member supply portion from the first intermediate portion 111 of the linear member 11. Extending toward the insertion hole 102 side.

Next, the insertion of the punch 30 into the insertion hole 102 is started. When the punch 30 is inserted, the member supply portion side of the second intermediate portion 112 of the linear member 11 is sandwiched between the restriction portion 32 as the “second restriction portion” and the starting point portion 35 of the punch 30. Thereby, the movement of the second intermediate portion 112 relative to the stage 10 is restricted.
Further, when the punch 30 is inserted into the insertion hole 102, the opposite member supply portion side of the second intermediate portion 112 serves as a “second inclined surface” of the inclined portion 33 as the “second inclined portion” of the punch 30. Abutting on the inclined surface 331. The second intermediate portion 112 is bent according to the angle formed by the regulating surface 321 as the “second regulating surface” of the regulating unit 32 and the inclined surface 331.

Next, the insertion of the punch 40 into the insertion hole 103 is started. When the punch 40 is inserted, the member supply portion side of the third intermediate portion 113 of the linear member 11 is sandwiched between the restriction portion 42 and the starting point portion 45 of the punch 40. Thereby, the movement of the third intermediate portion 113 relative to the stage 10 is restricted.
Further, when the punch 40 is inserted into the insertion hole 103, the counter member supply portion side of the third intermediate portion 113 comes into contact with the inclined surface 431 of the inclined portion 43 of the punch 40. The third intermediate portion 113 is bent according to the angle formed by the regulating surface 421 and the inclined surface 431 of the regulating unit 42.

  As described above, when the first intermediate portion 111, the second intermediate portion 112, and the third intermediate portion 113 of the linear member 11 are bent by a combination of the punch inserted into the insertion hole and the starting portion, A linear member 11 having a plurality of bends is formed on the set surface 100 as shown in FIG.

  In the bending apparatus 1 according to the first embodiment, the punches 20, 30, 40 inserted into the insertion holes 101, 102, 103 and the starting points 25, 35, 45 provided in the vicinity of the insertion holes 101, 102, 103 are The linear member 11 is bent by the combination. The punches 20, 30, 40 sandwich the linear member 11 together with the starting point portions 25, 35, 45, and the restricting portions 22, 32, 42 that restrict the movement of the linear member 11 and the linear member 11 have a desired bending angle. Inclined portions 23, 33, 43 for applying a pressing force to the linear member 11 are provided. The punches 20, 30, and 40 have cross-sectional shapes perpendicular to the central axis CA 20 of the regulating surfaces 221, 321, and 421 that the regulating portions 22, 32, and 42 have and inclined surfaces 231, 331, and 431 that the inclined portions 23, 33, and 43 have. The angle formed by the cross-sectional shape perpendicular to the central axis CA20 is formed so as to decrease from the side first inserted into the insertion holes 101, 102, 103 of the punches 20, 30, 40 toward the punch base 21 side. . Thereby, when the insertion depth of the punches 20, 30, 40 with respect to the insertion holes 101, 102, 103 is changed, the bending angles of the first intermediate part 111, the second intermediate part 112, and the third intermediate part 113 can be changed. it can. Thereby, the bending apparatus 1 can bend the linear member 11 in a desired direction on the set surface 100 with a simple configuration.

  Further, the bending apparatus 1 includes a plurality of punches 20, 30, 40 and a plurality of starting point portions 25, 35, 45. In the bending apparatus 1, the first intermediate part 111 is bent by the combination of the punch 20 and the starting point part 25, and then the second intermediate part 112 is bent by the combination of the punch 30 and the starting point part 35. After the second intermediate portion 112 is bent, the third intermediate portion 113 is bent by a combination of the punch 40 and the starting point portion 45. Thereby, when one linear member 11 is mounted on the set surface 100, it is possible to bend a plurality of locations by one apparatus without moving the linear member 11. Therefore, the number of bending processes in the linear member 11 can be reduced.

  Here, the bending process of the linear member using the conventional punch is demonstrated based on FIG. FIG. 11 is a cross-sectional view of the stage 90 on which the linear member 91 is placed and the vicinity of the punch 95 provided so as to be reciprocally movable with respect to the stage 90. When the linear member 91 is bent, the portion where the linear member 91 is bent is placed on the stage 90 so as to be positioned immediately above the recess 901 of the stage 90. The end of the punch 95 on the side in contact with the linear member 91 is formed to match the shape of the depression 901. When the punch 95 moves in the direction of the white arrow F1, the linear member 91 is A bending process is performed along the shape.

In a conventional workpiece bending apparatus using a punch, the linear member 91 can be bent only in one direction in the reciprocating direction of the punch 95 as shown in FIG. However, when the linear member 91 is bent in a direction different from the reciprocating direction of the punch 95, the linear member 91 is changed to a plate-like member and is formed in a direction along the set surface 900 of the stage 90 by punching. Processing. For this reason, the waste of the material by punching occurs.
In the bending apparatus 1 according to the first embodiment, a bending process is performed in a desired direction along the set surface 100 by applying a pressing force in the direction along the set surface 100 to the linear member 11 on the set surface 100. be able to. Thereby, the waste of the material by punching is eliminated, and the manufacturing cost of the linear member 11 can be reduced.

(Second embodiment)
Next, an apparatus for bending a workpiece according to a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment in that a plurality of linear members can be bent at a time. In addition, the same code | symbol is attached | subjected to the site | part substantially the same as 1st embodiment, and description is abbreviate | omitted.

  FIG. 9 shows an enlarged view of a part of the workpiece bending apparatus according to the second embodiment. The stage 50 included in the workpiece bending apparatus according to the second embodiment has a plurality of insertion holes having openings in the set surface 500. The insertion holes 501 and 502 of the second embodiment are formed so as to correspond to each of the plurality of linear members. Specifically, the insertion hole 501 as the “first hole” is formed so as to correspond to the position where the linear member 51 as the “worked member” is placed, and the linear shape as the “parallel processed member”. An insertion hole 502 as a “parallel first hole” is formed so as to correspond to the position where the member 52 is placed.

  The punches 61 and 62 included in the workpiece bending apparatus according to the second embodiment are provided so as to be inserted into the insertion holes 501 and 502, respectively.

  The punch 61 as the “first punch” includes a restricting portion 611 as the “first restricting portion” and an inclined portion 612 as the “first inclined portion”. A cross-sectional shape perpendicular to the central axis of the punch 61 of the regulating surface 613 as the “first regulating surface” of the regulating unit 611 and a cross-section perpendicular to the central axis of the inclined surface 614 as the “first inclined surface” of the inclined unit 612. The angle formed by the shape becomes smaller from the side first inserted into the insertion hole 501 of the punch 61 toward the side opposite to the side first inserted into the insertion hole 501 of the punch 61.

  The punch 62 as the “parallel first punch” includes a restricting portion 621 as the “parallel first restricting portion” and an inclined portion 622 as the “parallel first inclined portion”. A cross-sectional shape perpendicular to the central axis of the punch 62 of the regulating surface 623 as the “parallel first regulating surface” of the regulating portion 621 and a vertical axis to the central axis of the inclined surface 624 as the “parallel first inclined surface” of the inclined portion 622. The angle formed by such a cross-sectional shape becomes smaller from the side first inserted into the insertion hole 502 of the punch 62 toward the side opposite to the side first inserted into the insertion hole 502 of the punch 62.

  The starting point portions 66 and 67 are provided in the vicinity of the insertion holes 501 and 502. In the second embodiment, the starting points 66 and 67 are provided on the set surface 500.

  When the linear member 51 contacts the punch 61 inserted into the insertion hole 501, the starting point portion 66 contacts the opposite side of the linear member 51 from the side on which the punch 61 contacts. At this time, the starting point portion 66 is a starting point for bending the linear member 51. The starting point portion 66 corresponds to a “first starting point portion” recited in the claims.

  When the linear member 52 comes into contact with the punch 62 inserted into the insertion hole 502, the starting point portion 67 comes into contact with the side opposite to the side with which the punch 62 comes into contact. At this time, the starting point portion 67 is a starting point for bending the linear member 52.

  The control unit 18 controls the insertion depth of the punches 61 and 62 into the insertion holes 501 and 502. The control unit 18 and the drive unit 181 correspond to a “parallel first control unit” recited in the claims.

  In the workpiece bending apparatus according to the second embodiment, the two linear members 51 and 52 are set on the set surface 500. When the punches 61 and 62 are simultaneously inserted into the insertion holes 501 and 502, the linear members 51 and 52 are simultaneously bent according to the angle formed by the regulating surfaces 613 and 623 and the inclined surfaces 614 and 624 ( (See FIG. 9B). Thereby, since the bending apparatus of the to-be-processed member by 2nd embodiment has the effect of 1st embodiment, and since it can bend the several linear members 51 and 52 simultaneously, the linear members 51 and 52 of The number of man-hours required for bending can be further reduced.

(Third embodiment)
Next, an apparatus for bending a workpiece according to a third embodiment of the present invention will be described with reference to FIG. The third embodiment is different from the second embodiment in that the punch is a starting point for bending the linear member. In addition, the same code | symbol is attached | subjected to the site | part substantially the same as 2nd embodiment, and description is abbreviate | omitted.

  FIG. 10 shows an enlarged view of a part of a workpiece bending apparatus according to the third embodiment. The stage 70 included in the bending apparatus for the workpiece according to the third embodiment has a plurality of insertion holes having openings in the set surface 700. The insertion hole 701 as the “first hole” and the insertion hole 702 as the “parallel first hole” in the third embodiment are formed closer to each other than in the second embodiment. The insertion hole 701 is formed so as to correspond to a position where the linear member 81 as “one workpiece” is placed. The insertion hole 702 is formed to correspond to a position where the linear member 82 as the “parallel workpiece” is placed.

  The punches 71 and 72 of the workpiece bending apparatus according to the third embodiment are provided so as to be inserted into the insertion holes 701 and 702, respectively.

  The punch 71 as the “first punch” includes a restricting portion 711 as the “first restricting portion” and an inclined portion 712 as the “first inclined portion”. A cross-sectional shape perpendicular to the central axis of the punch 71 of the regulating surface 713 as the “first regulating surface” of the regulating portion 711 and a cross-section perpendicular to the central axis of the inclined surface 714 as the “first inclined surface” of the inclined portion 712. The angle formed by the shape becomes smaller from the side first inserted into the insertion hole 701 of the punch 71 toward the side opposite to the side first inserted into the insertion hole 701 of the punch 71.

The punch 72 as the “parallel first punch” includes a restricting portion 721 as the “parallel first restricting portion” and an inclined portion 722 as the “parallel first inclined portion”. A cross-sectional shape perpendicular to the central axis of the punch 72 of the regulating surface 723 as the “parallel first regulating surface” of the regulating portion 721 and a vertical axis to the central axis of the inclined surface 724 as the “parallel first inclined surface” of the inclined portion 722. The angle formed by such a cross-sectional shape becomes smaller from the side first inserted into the insertion hole 702 of the punch 72 toward the side opposite to the side first inserted into the insertion hole 702 of the punch 72.
The end portion 725 on the side opposite to the supply member of the restricting portion 721 is formed so that the cross-sectional shape parallel to the set surface 700 is an arc shape. The end portion 725 contacts the side opposite to the side on which the punch 71 of the linear member 81 contacts. At this time, the end portion 725 becomes a starting point of bending inside the bending of the intermediate portion 811 as the “one intermediate portion” of the linear member 81.

  The starting point portion 76 is provided in the vicinity of the insertion hole 702. When the punch 72 inserted into the insertion hole 702 and the linear member 82 abut, the starting point portion 76 abuts on the opposite side of the linear member 82 from the side on which the punch 72 abuts. At this time, the starting point portion 76 becomes a bending starting point inside the bending of the intermediate portion 821 as the “parallel intermediate portion” of the linear member 82.

  The control unit 18 controls the insertion depth of the punches 71 and 72 into the insertion holes 701 and 702. The control unit 18 and the drive unit 181 correspond to a “first control unit” and a “parallel first control unit” recited in the claims.

  In the bending apparatus for a workpiece according to the third embodiment, two linear members 81 and 82 are set on the set surface 700. When the punches 71 and 72 are inserted into the insertion holes 701 and 702, the linear members 81 and 82 are bent according to the angle formed by the regulating surfaces 713 and 723 and the inclined surfaces 714 and 724 (FIG. 10). (See (b)). At this time, the end portion 725 of the punch 72 functions as a starting point for bending the linear member 81. Thereby, the bending apparatus of the workpiece according to the third embodiment achieves the effects of the first embodiment and the effects of the second embodiment, and simultaneously adds more linear members 81 and 82 in a relatively narrow region. Since bending can be performed, the man-hours required for bending the linear members 81 and 82 can be further reduced.

  In addition, since the plurality of linear members 81 and 82 can be bent in a relatively narrow region, the physique of the bending apparatus for the workpiece can be reduced.

(Other embodiments)
(A) In the above-described embodiment, the bending apparatus for the workpiece is provided with a pressing portion that presses the linear member against the set surface. However, the holding part may not be provided.

  (A) In the above-described embodiment, the starting point portion is provided on the set surface. However, the starting point may not be provided on the set surface. It may be provided to reciprocate in conjunction with the reciprocating movement of the punch.

  (C) In the above-described embodiment, the cross-sectional shape parallel to the horizontal plane of the insertion hole having the opening on the set surface is L-shaped. However, the cross-sectional shape parallel to the horizontal plane of the insertion hole is not limited to this. It may be J-shaped depending on the bending angle of the linear member.

  (D) In the second and third embodiments, the two linear members are bent at the same time. However, the number of linear members bent simultaneously is not limited to this. There may be more than two.

  (E) In the second and third embodiments, the bending process at each of the plurality of linear members has been described. However, as in the first embodiment, the bending process is performed at a plurality of positions of the plurality of linear members. As described above, the punch, the insertion hole, and the starting point may be provided in a direction away from the member supply unit.

  (F) In the third embodiment, the end of the restricting portion of the punch on the side opposite to the member supply portion is formed so that the cross-sectional shape is an arc shape. However, it does not have to be arcuate.

  As mentioned above, this invention is not limited to such embodiment, It can implement with a various form in the range which does not deviate from the summary.

1 ... Processing device (bending device for workpiece),
10, 50 ... stage, 11, 51 ... linear member (workpiece),
100, 500 ... set surface,
101, 501, ... insertion hole (first hole),
111 ... 1st intermediate part,
16 ... member supply part,
18 ... control unit (first control unit),
181 ... drive unit (first control unit),
20, 61 ... punch (first punch),
22, 611 ... restriction part (first restriction part),
221, 613 ... restriction surface (first restriction surface),
23, 612 ... inclined part (first inclined part),
231, 614 ... inclined surface (first inclined surface),
25, 66... Starting part (first starting part).

Claims (10)

A bending device (1) for a workpiece to bend a linear workpiece (11, 51) in a desired direction,
A member supply unit (16) for supplying the workpiece;
A stage (10, 50) having a set surface (100, 500) on which the workpiece to be supplied supplied by the member supply unit is placed;
A first punch (20, 61) that can be inserted into a first hole (101, 501) that opens on the set surface side of the stage while abutting the workpiece to be placed on the set surface;
A first starting portion (25, 66) provided on the opposite side of the workpiece from the first punch and serving as a starting point for bending the workpiece;
A first control unit (18, 181) for controlling the insertion depth of the first punch into the first hole;
With
The first punch includes a first restricting portion (22, 611) for restricting movement of the first intermediate portion (111) of the workpiece to be processed on the member supply portion side, and a reciprocating movement direction of the first punch ( A first inclined portion (23, 612) that has a first inclined surface (231, 614) that is inclined with respect to CA20) and that can be brought into contact with the counter member supply portion side of the first intermediate portion;
A cross-sectional shape parallel to the set surface of the first restricting surfaces (221, 613) contacting the first intermediate portion of the first restricting portion and a cross-sectional shape parallel to the set surface of the first inclined surface are formed. The angles (θb, θc, θd, θe) are from the side that is first inserted into the first hole of the first punch to the side opposite to the side that is first inserted into the first hole of the first punch. A bending apparatus for a member to be processed, which becomes smaller as it goes.   The bending apparatus for a workpiece according to claim 1, further comprising a pressing portion (14) for pressing the workpiece on the stage against the set surface.   The apparatus for bending a workpiece according to claim 1, wherein the first starting point portion is provided on the set surface. In the second hole (102) that opens to the set surface side of the stage while abutting the second intermediate portion (112) located farther from the member supply portion than the first intermediate portion of the workpiece A second insertable punch (30);
A second starting point portion (35) provided on a side opposite to the second punch of the workpiece, and serving as a bending starting point of the workpiece;
A second control unit (18, 181) for controlling the insertion depth of the second punch into the second hole;
Further comprising
The second punch includes a second restricting portion (32) for restricting movement of the second intermediate portion on the member supply portion side, and a second inclined surface (331) inclined with respect to the reciprocating direction of the second punch. ) And a second inclined portion (33) capable of contacting the second intermediate portion on the side opposite to the member supply portion,
The angle formed by the cross-sectional shape parallel to the set surface of the second restricting surface (321) contacting the second intermediate portion of the second restricting portion and the cross-sectional shape parallel to the set surface of the second inclined surface is The diameter of the second punch decreases from the side first inserted into the second hole toward the side opposite to the side first inserted into the second hole of the second punch. The bending apparatus for a workpiece according to any one of claims 1 to 3. A bending method for a workpiece using the bending device for a workpiece according to claim 4,
A placing step of placing the workpiece on the set surface;
After the placing step, a first bending step of inserting the first punch into the first hole and bending the first intermediate portion of the workpiece, and
After the first bending step, a second bending step of inserting the second punch into the second hole and bending the second intermediate portion of the workpiece,
A method for bending a member to be processed, comprising: Can be inserted into a parallel first hole (502) that opens on the set surface side of the stage while abutting a linear parallel processed member (52) placed alongside the workpiece on the set surface. Parallel first punch (62),
A parallel first starting portion (67) provided on the side opposite to the parallel first punch of the parallel processed members and serving as a starting point of bending of the parallel processed members;
A parallel first control unit (18, 181) for controlling an insertion depth of the parallel first punch into the parallel first hole;
With
The parallel first punch includes a parallel first restricting portion (621) that restricts movement of the parallel workpieces on the member supply portion side, and a parallel first punch that is inclined with respect to the reciprocating direction of the parallel first punch. A parallel first inclined portion (622) having an inclined surface (624) and capable of contacting the opposite member supply portion side of the parallel workpieces;
A cross-sectional shape parallel to the set surface of the parallel first restriction surface (623) contacting the parallel workpieces of the parallel first restriction portion and a cross-sectional shape parallel to the set surface of the parallel first inclined surface are provided. The angle formed is reduced from the side first inserted into the first parallel hole of the first parallel punch toward the side opposite to the side first inserted into the first parallel hole of the first parallel punch. The apparatus for bending a workpiece according to any one of claims 1 to 4, wherein: A bending method for a workpiece using the bending device for a workpiece according to claim 6,
A parallel placement step of placing the workpieces and the parallel workpieces side by side on the set surface; and
After the parallel placing step, the first punch is inserted into the first hole and the parallel first punch is inserted into the parallel first hole, and the workpiece and the parallel workpiece are bent. Parallel bending process performed simultaneously;
A method for bending a member to be processed, comprising: A bending apparatus for a workpiece to bend a plurality of workpieces (81, 82) formed linearly in a desired direction,
A member supply section (16) for supplying a plurality of the workpieces;
A stage (70) having a set surface (700) on which a plurality of the workpieces are placed;
A first punch that can be inserted into a first hole (701) that opens on the set surface side of the stage while abutting one of the workpieces (81) of the plurality of workpieces placed on the set surface. (71),
The set surface side of the stage while abutting the parallel processed member (82) of the plurality of processed members placed on the set surface side by side with the one processed member and the one processed member A parallel first punch (72) insertable into a parallel first hole (702) opening to
A starting point portion (76) provided on a side opposite to the parallel first punch of the parallel processed members, and serving as a starting point of bending of the parallel processed members;
A first control unit (18, 181) for controlling the insertion depth of the first punch into the first hole;
A parallel first control unit (18, 181) for controlling an insertion depth of the parallel first punch into the parallel first hole;
With
The first punch includes a first restricting portion (711) for restricting movement of the one intermediate portion (811) of the one workpiece member on the member supply portion side, and a reciprocating movement direction of the first punch. A first inclined portion (712) that has a first inclined surface (714) that is inclined with respect to the one intermediate portion and can be brought into contact with the opposite member supply portion side;
An angle formed by a cross-sectional shape parallel to the set surface of the first restricting surface (713) contacting the one intermediate portion of the first restricting portion and a cross-sectional shape parallel to the set surface of the first inclined surface is , As it goes from the side first inserted into the first hole of the first punch toward the side opposite to the side first inserted into the first hole of the first punch,
The parallel first punch includes a parallel first restriction portion (721) for restricting movement of the parallel intermediate portion (821) of the parallel workpieces on the member supply portion side, and a reciprocating direction of the parallel first punch. A parallel first inclined portion (722) that has a parallel first inclined surface (724) that is inclined with respect to the opposite member supply portion side of the parallel intermediate portion;
A cross-sectional shape parallel to the set surface of the parallel first restricting surface (723) contacting the parallel intermediate portion of the parallel first restricting portion and a cross-sectional shape parallel to the set surface of the parallel first inclined surface are formed. The angle becomes smaller from the side first inserted into the parallel first hole of the parallel first punch toward the side opposite to the side first inserted into the parallel first hole of the parallel first punch,
The parallel first punch is a starting point for bending the one workpiece, and the workpiece bending apparatus.   The bending apparatus for a workpiece according to claim 8, further comprising a pressing portion (14) for pressing a plurality of workpieces on the stage against the set surface. A bending method for a workpiece using the bending device for a workpiece according to claim 8 or 9,
A parallel placing step of placing the one workpiece and the parallel workpiece on the set surface;
After the parallel mounting step, the first punch is inserted into the first hole and the parallel first punch is inserted into the parallel first hole, and bending of the one intermediate portion and the parallel intermediate portion is performed. Parallel bending process performed simultaneously;
A method for bending a member to be processed, comprising:

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