JP2017121644A - Press molding device and press molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize space-saving by restraining an enlargement of the whole line, without largely increasing manhours, even if a part-joining process is incorporated into a press molding line.SOLUTION: When starting processing of an upper mold shoe 5 after setting by overlapping a joining surface Ba of a brace material B and an end part of a work W on a molding surface 2a of a lower punch 2, first of all, an upper processing blade 3 suspended by a constant pressure holding source 6 interposingly presses the joining surface Ba of the brace material B and the work W, and forms a flange in an end part Wa of the work W by pressing an edge blade 3b to an edge part 2b. A descent of the upper mold shoe 5 is continued while interposingly pressing the work W and the brace material B by elastic displacement of the constant pressure holding source 6, and a thrust-up cam 18 is lifted by operating a cam mechanism 11 with that as a driving source, and both are joined by a rivet by driving a self-pierce rivet R in the brace material B and the work W by projecting a rivet extrusion pin 8.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a press molding apparatus and a press molding method for performing press working in a state where different parts are clamped and subsequently joining the different parts.

  In vehicles such as automobiles, there is a tendency to change the material that forms part of the structure such as the body and frame from steel plate to aluminum alloy and carbon resin due to the demand for weight reduction. Depending on the part used, steel plate parts In some cases, a structure is formed by combining aluminum parts, steel plate parts, aluminum parts, and carbon resin.

  Generally, a steel plate part and an aluminum part, or a steel plate part or an aluminum part and a carbon resin part cannot be connected by welding, so that rivet joining using a self-piercing rivet or the like is widely employed. When riveting such a plurality of parts, for example, as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2007-237262), a process for joining completed parts is provided on the body assembly line. The caulking operation is performed using a caulking device as disclosed in Document 2 (Japanese Patent Laid-Open No. 2007-75866).

JP 2007-237262 A JP 2007-75866 A JP 2002-301528 A

  As disclosed in Patent Document 1 described above, the finished products are temporarily assembled on the body assembly line, and in that state, using a caulking device as disclosed in Patent Document 2, It is necessary to separately set a process for rivet joining in this body assembly line. In addition, the completed parts must be temporarily assembled one by one, which increases the number of assembly steps.

  In particular, when rivet joining is performed using a self-piercing rivet, a caulking operation is performed while drilling between parts, so a relatively large load is required, the caulking device is enlarged, and not only the equipment cost increases, There is also a disadvantage that it is difficult to secure a sufficient working space.

  Therefore, for example, in Patent Document 3 (Japanese Patent Laid-Open No. 2002-301528), a press forming line that presses two parts individually is incorporated with a caulking machine that joins the two pressed parts with rivets, and press forming is performed. A technique is disclosed in which the latter two parts are joined in a press molding line.

  However, in the technique disclosed in Patent Document 3, the rivet joining process on the body assembly line can be omitted, but the caulking machine is merely incorporated in the press molding line, and the rivet is joined in the press molding line. Only the joining process increases, and it is difficult to contribute to reducing the overall man-hours. Furthermore, there is a disadvantage that the entire line configuration is increased by the amount of caulking machines incorporated in the press molding line.

  In view of the above circumstances, the present invention does not significantly increase the number of man-hours even if a process for joining parts is incorporated into a press molding line, and further, the overall size of the line is suppressed and space saving is realized. An object of the present invention is to provide a press molding apparatus and a press molding method.

  A first aspect of the present invention includes a first press die and a second press die that can be moved close to and away from above the first press die via a press movable member. In a press molding apparatus that sandwiches and presses parts to form a predetermined shape, a narrow pressure portion that is provided on the opposing surfaces of the two press dies and overlaps different parts to narrow the pressure, and provided on the opposing surfaces of the two press dies. A processing portion that presses at least one of the different parts, an extrusion member that is provided on one of the press dies and pushes the joining member toward the narrow pressure portion, a proximal end of the extrusion member, and the press A movable member is continuously provided, and a projecting means that pushes the joining member in the direction of the component through the pushing member to join the component, and the press movable member and the second press die are continuously provided. The second press mold is 1 the component by pressing the state pressed against the press mold said processing unit, and a pressure holding means for said acceptable by compression displacement of descent of the press movable member protrudes the protruding means is operated.

  A second aspect of the present invention includes a first press die and a second press die that can be moved close to and away from the first press die via a press movable member. In the press molding method of sandwiching the parts and forming them into a predetermined shape, different parts are stacked and set on the narrow pressure parts provided on the opposing surfaces of the two press molds, and then the press movable member is first lowered as described above. At least one of the different parts is pressed in a state where the part is clamped by the narrow pressure portion, and the parts are joined in a state where the narrow pressure of the part is maintained.

  According to the present invention, the parts are joined continuously to the press work performed in a state where different parts are overlapped. Therefore, even if the process for joining the parts is incorporated in the press molding line, the number of man-hours is not significantly increased. And since the press movable member is used as a drive source, the enlargement of the whole line is suppressed and space saving can be implement | achieved.

Explanatory drawing which shows the flow of the molding process in the press molding apparatus by 1st Embodiment. Schematic configuration diagram showing the standby state of the press molding apparatus Schematic configuration diagram showing the molding state of the press molding device Same as above, enlarged view of the main part of FIG. FIG. 4 is an enlarged view of a V portion in FIG. 4, (a) is an enlarged view immediately before pressing, (b) is an enlarged view after processing, and (c) is an enlarged view of a rivet-bonded state. It is an enlarged view equivalent to FIG. 5 by 2nd Embodiment, (a) is an enlarged view of a standby state, (b) is a principal part enlarged view of the right side surface of (a). FIG. 6A is an enlarged view corresponding to FIG. 6A in a state in which the pad is in contact with the machining blade, and FIG. (A) is an enlarged view corresponding to FIG. 7 (a) in a state where the workpiece is bent with a processing blade, and (b) is a right side view of the main part of (a). FIG. 7A is an enlarged view corresponding to FIG. 7A in a state where the self-piercing rivet is pushed down, and FIG. The enlarged view corresponding to FIG. 7 (a) in a state where the work and the brace material are rivet-joined.

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

[First Embodiment]
1 to 5 show a first embodiment of the present invention. FIG. 1 shows a molding flow executed in the press molding line according to the present embodiment. That is, when a panel-like workpiece W as a part molded in advance to a predetermined size is put into the press molding line while being gripped by a material handling (material handling) robot or the like, first, in the first step S1. Then, press molding such as bending, drawing, and shearing is performed, and in the subsequent second step S2, a finished brace material B as a part that has been previously formed into a predetermined shape is introduced. Then, in the third step S3, the panel-like workpiece W and the brace material B are bent and formed in a temporarily assembled state, and in the fourth step S4 that follows, the self-piercing rivet R as a caulking joint member is used. Then, the end surface of the panel-shaped workpiece W and the bonding surface Ba formed at the end portion of the brace material B are rivet-bonded. In addition, since the press molding performed by 1st process S1 is known, description below is abbreviate | omitted. The panel-like workpiece W is made of a steel plate, while the brace material B has a material different from that of the panel-like workpiece W, such as an aluminum alloy or a carbon resin.

  The above-described second step S2 to fourth step S4 are executed by the composite press molding apparatus 1 arranged in the press molding line. As shown in FIG. 2, the composite press apparatus 1 includes a lower punch 2 as a first press die fixed to the lower die shoe 4, and a second press die facing the molding surface 2 a of the lower punch 2. It has an upper working blade 3 as a mold. The lower punch 2 and the upper working blade 3 are long and narrowly arranged from the front side to the back side along the side of the panel-shaped workpiece W shown in FIG.

  The lower mold shoe 4 is fixed to a base (not shown). A pair of columns (not shown) are erected on the front and back of the base surface of the base, and a ram (not shown) is mounted between the guides provided on the opposing surfaces of the column so as to be movable up and down. The upper shoe 5 is suspended from the ram. Further, a beam portion (not shown) is installed on the upper surface of the pair of opposed columns, and lifting means (not shown) for raising and lowering the ram is fixed to the beam portion. In the present embodiment, the ram and the upper mold shoe 5 function as a press movable member.

  A constant pressure holding source 6 as a pressure holding means is fixed to the bottom surface of the upper mold shoe 5. This constant pressure holding source 6 absorbs the stroke of the upper mold shoe 5 so that the upper working blade 3 can be stopped while holding the pressing force against the lower punch 2 even during the lowering operation of the upper mold shoe 5. is there. The constant pressure holding source 6 uses a gas spring, a hydraulic spring, a coil spring or the like as an elastic source, and a pad 7 is fixed to the lower part. The upper surface of the upper working blade 3 is fixed to the pad 7.

  Further, as shown in FIG. 4, a molding surface 2a is formed on the lower punch 2 to place the joining surface Ba formed at the end portion of the finished brace material B. At the end portion, the panel-like workpiece W is formed. An edge portion 2b that forms a flange by bending the end portion Wa is formed. On the other hand, an edge blade 3b that presses the panel-shaped workpiece W against the edge portion 2b is formed at one end of the pressing surface 3a facing the molding surface 2a of the upper working blade 3. The molding surface 2a and the pressure surface 3a constitute a narrow pressure portion of the present invention. Moreover, the processing part of this invention is comprised by the edge part 2b and the edge blade 3b.

  The lower punch 2 has a pin guide hole 2c at a position facing the pressure surface 3a of the upper working blade 3 and corresponding to the joint portion of the brace material B. A rivet push pin 8 as a push member is inserted into each pin guide hole 2c. Further, a rivet guide cylinder 9 as a supply portion is inserted into each pin guide hole 2c. A self-piercing rivet R is supplied to each rivet guide tube 9 from a rivet feeder (not shown).

  The lower end of each rivet push pin 8 is connected to a rivet push-up cam mechanism 11 as a protruding means. As shown in FIG. 2, the rivet push-up cam mechanism 11 has a base 12 disposed in parallel with the lower punch 2 from the front side of the drawing to the back side, and this base 12 is a lower shoe. 4 is erected. This base 12 is formed in a cross-sectional groove shape that opens upward, and a return pressure source 13 is fixed to one standing portion 12a. The return pressure source 13 includes a coil spring 13a, and the coil spring 13a and a retainer 13b that is in contact with the end surface of the coil spring 13a are externally mounted on the spring guide shaft 13c.

  A hook 14a provided at the lower end of the cam transmission member 14 is hooked on the retainer 13b. The cam transmission member 14 is formed with a cam surface bearing 14b on one of the left and right sides of the paper and a cam surface 14c on the other side. The cam transmission member 14 is supported by a slide guide (not shown) and is only allowed to move in the horizontal direction in FIG. The cam surface 15a of the cam pushing member 15 is in sliding contact with the cam receiving surface 14b. The cam pushing member 15 is supported by a slide guide 12c formed on the other standing portion 12b of the base 12, and is allowed to move only in the vertical direction. A cam head 16 is fixed on the upper surface of the cam pushing member 15. Yes. Further, a lower end 17 a of a cam driver 17 that is suspended from the upper shoe 5 is fixed to the cam head 16.

  On the other hand, the cam receiving surface 18 a of the push-up cam 18 is slidably contacted with the cam surface 14 c of the cam transmission member 14, and the rivet push pin 8 is fixed to the upper surface of the push-up cam 18. The push-up cam 18 is supported by a cam guide (not shown) in a state that only movement in the vertical direction is allowed. In addition, the pressurizing surface 3a of the upper working blade 3 is formed with a caulking concave portion 3c that receives and caulks a portion protruding to the opposite side by the pressing of the self-piercing rivet R.

  Next, an effect | action at the time of processing the panel-shaped workpiece | work W and the assembly | attachment of the brace material B is demonstrated using the composite press apparatus 1 by such a structure.

  When the composite press apparatus 1 is in a standby state (top dead center) as shown in FIG. 2, the end surface of the finished brace material B conveyed to the molding surface 2a of the lower punch 2 by a material handling robot or the like. The formed bonding surface Ba is set, and further, the end portion Wa of the panel-like workpiece W is set on the upper surface to be positioned.

  Next, when the upper mold shoe 5 starts to descend, as shown in FIG. 5A, the pressurizing surface 3a of the upper working blade 3 suspended from the upper mold shoe 5 through the constant pressure holding source 6 becomes a panel-shaped workpiece. Proximity to W. As shown in FIGS. 3 and 5B, the edge blade 3 b formed at one end of the pressing surface 3 a is formed with the end portion Wa of the panel-like workpiece W on the molding surface 2 a of the lower punch 2. The flange is bent by pressing and bending the edge 2b.

  Thereafter, when the upper mold shoe 5 is further lowered, the constant pressure holding source 6 is compressed and displaced through a pad 7 fixed to the lower end of the upper shoe 5, and the panel work W and the brace material are formed by the upper working blade 3 and the punch 2. The joint with B is clamped.

  On the other hand, as the upper mold shoe 5 is lowered, the cam driver 17 fixed to the upper mold shoe 5 presses the cam pushing member 15 downward via the cam head 16. At that time, since the downward stroke of the upper mold shoe 5 is absorbed by the compression displacement of the constant pressure holding source 6, the stopped state of the upper working blade 3 is maintained.

  Then, the cam surface 15 a formed on the cam pushing member 15 presses the cam receiving surface 14 b formed on one side of the cam transmission member 14. As a result, the cam transmission member 14 moves in the horizontal direction, the hook 14a formed at the lower end compresses the coil spring 13a via the retainer 13b of the return pressure source 13, and the cam surface formed on the other side. 14 c pushes the cam receiving surface 18 a of the push-up cam 18.

  Then, the push-up cam 18 is pushed up, and the rivet push pin 8 fixed on the upper surface pushes up the self-piercing rivet R sequentially supplied from the rivet guide tube 9 to the pin guide hole 2c by a rivet feeder (not shown). As shown in FIGS. 3, 4, and 5 (c), the self-piercing rivet R is composed of a brace material B and a panel-like work that are clamped and fixed by the lower punch 2 and the pressing surface 3 a of the upper working blade 3. The joint surface Ba is driven in, and in this driving process, the joint surface Ba of the brace material B is drilled, and the panel-like workpiece W and the self-piercing rivet R are projected to the opposite side. Then, it is received by the caulking recess 3c and plastically deformed, and the brace material B and the panel workpiece W are rivet joined.

  Thereafter, when the upper mold shoe 5 reaches the bottom dead center, the upper mold shoe 5 turns upward, and the cam driver 17 suspended from the upper mold shoe 5 brings the cam push member 15 into the cam surface in close contact with the cam head 16 and the cam head 16. When moving upward while sliding at 15a, the cam transmission member 14 receives the resilient force of the coil spring 13a provided in the return pressure source 13 and slides to the left in FIG. As a result, the cam receiving surface 14 b presses the cam surface 15 a of the cam pushing member 15 and raises the cam pushing member 15. Further, since the cam surface 14c tends to be separated from the cam receiving surface 18a, the push-up cam 18 is lowered by its own weight or under the urging force of a tension spring (not shown) and returned to the initial position shown in FIG.

  On the other hand, as the upper mold shoe 5 is raised, the pressing force applied to the upper working blade 3 suspended from the constant pressure holding source 6 via the pad 7 is gradually released, and the upper working blade 3 is separated from the lower punch 2. Then, as shown in FIG. 2, the upper shoe 5 is raised until it reaches the top dead center.

  As described above, according to the present embodiment, in the composite press apparatus 1 incorporated in the press molding line, the end portion Wa of the panel-like workpiece W is bent, and the panel-like workpiece W and the brace by the self-piercing rivet R are used. Since the rivet joining with the material B is continuously performed during the pressing process, even if the process of performing the rivet joining is incorporated in the press forming line, the man-hours are not significantly increased. The joining process of the panel-like workpiece W and the brace material B can be omitted or shortened.

  Furthermore, since the rivet push-up cam mechanism 11 is operated using the lowering movement of the upper shoe 5 as a drive source, the increase in size of the apparatus is suppressed, and space saving can be realized.

  Further, since the self-piercing rivet R is driven in a state where the lower workpiece 2 and the upper working blade 3 overlap and hold the panel-shaped workpiece W and the joint surface Ba of the brace material B with a narrow pressure, distortion occurs in both. It is difficult to cause excessive stress concentration when drilling, and further, stress distortion does not occur on the joint surface.

[Second Embodiment]
6 to 10 show a second embodiment of the present invention. In the first embodiment described above, the self-piercing rivet R supplied to the pin guide hole 2c formed in the lower punch 2 is pushed up from the lower punch 2 side to be rivet joined. The self-piercing rivet R is driven into the panel workpiece W and the brace material B from the upper working blade 3 side. In addition, about the same component as 1st Embodiment, the same code | symbol is attached | subjected and description is simplified.

  On the upper shoe 5 of the composite press apparatus 1 (see FIG. 6), a constant pressure holding source 6 for fixing a pad 7 is suspended at the lower end, and a rivet punch 5a as a protruding means and a punch member is formed. ing.

  The rivet punch 5a is opposed to a caulking recess 2e formed on the molding surface 2a of the lower punch 2. Further, the upper working blade 21 is exposed on the molding surface 2 a of the lower punch 2. Furthermore, an edge blade 21b is formed at one end of the pressing surface 21a formed at the lower end of the upper working blade 21 to press the end portion Wa of the panel-like workpiece W against the edge portion 2b of the lower punch 2 to bend the flange. Yes. The molding surface 2a and the pressure surface 21a constitute a narrow pressure portion of the present invention.

  Further, a pin guide hole 21c having a lower end opened to the pressing surface 21a is formed in the upper working blade 21, and the rivet push pin 8 is inserted into the pin guide hole 21c. The base side of the rivet push pin 8 protrudes from the upper surface of the upper working blade 21, and a pin head 8a is formed at the upper end thereof. Further, a return spring 22 is externally mounted on the rivet push pin 8, and an upper end of the return spring 22 is hooked on the pin head 8 a and a lower end is hooked on the upper working blade 21.

  Further, a rivet guide hole 21d as a supply portion facing the pin guide hole 21c from a direction orthogonal to the pin guide hole 21c is formed in the upper working blade 21, and the rivet guide hole 21d communicates with a rivet feeder (not shown). A rivet guide tube 9 is connected, and the self-piercing rivet R is supplied to the rivet guide hole 21d by this rivet feeder.

  When the upper mold shoe 5 is lowered, the constant pressure holding source 6 presses the upper surface of the upper working blade 21 through the pad 7, while the rivet punch 5 a protrudes from the upper working blade 21 and the pin head 8 a of the rivet extrusion pin 8. Press. In FIG. 6A to FIG. 9A, the rivet punch 5a is omitted.

  In such a configuration, when the upper shoe 5 of the composite press apparatus 1 (see FIG. 2) is in a standby state (top dead center) as shown in FIG. 6, the material handling robot is placed on the molding surface 2a of the lower punch 2. The joint surface Ba of the finished brace material B conveyed by the above method is placed, and the end portion Wa of the panel-like workpiece W is placed and positioned on the upper surface. Further, the upper working blade 21 attached to the arm portion of the material handling robot is made to face the molding surface 2a.

  Thereafter, when lowering of the upper mold shoe 5 is started, as shown in FIG. 7, the constant pressure holding source 6 presses the upper surface of the upper working blade 21 through the pad 7, and the lower end of the rivet punch 5a is rivet extruded. The pin 8 contacts the pin head 8a. Then, as the upper mold shoe 5 is lowered, the constant pressure holding source 6 pushes down the upper working blade 21 via the pad 7, and the edge blade formed on the pressing surface 21a of the upper working blade 21 as shown in FIG. At 21b, the end portion Wa of the panel-like workpiece W is pressed against the edge portion 2b formed on the molding surface 2a of the lower punch 2 to bend the flange.

  Thereafter, when the upper mold shoe 5 is further lowered, the constant pressure holding source 6 is compressed and displaced through the pad 7, and the upper working blade 21 forms the panel-shaped workpiece W and the joint surface Ba of the brace material B into the lower punch 2. It is pressed and fixed in a state of being superimposed on the surface 2a.

  On the other hand, the rivet punch 5a formed integrally with the upper mold shoe 5 presses the pin head 8a as the upper mold shoe 5 is lowered, and the rivet push pin 8 inserted through the pin guide hole 21c is replaced with the return spring 22. Push down against the urging force of. Then, as shown in FIG. 9, the self-piercing rivet R sequentially supplied from the rivet guide hole 21d to the pin guide hole 21c by a rivet feeder (not shown) is pushed down.

  Then, as shown in FIG. 10, after the self-piercing rivet R is driven into the panel-shaped workpiece W clamped and fixed by the lower punch 2 and the pressing surface 21 a of the upper working blade 21, the panel-shaped workpiece W is punched. The self-piercing rivet R is bitten into the joint surface Ba of the brace material B, and the tip is projected to the caulking recess 2e side. And this protrusion part is received by the crimping recessed part 2e, it is made to plastically deform, and the panel-shaped workpiece | work W and the joining surface Ba of the brace material B are rivet-joined.

  Thereafter, when the upper mold shoe 5 reaches the bottom dead center, the upper shoe 5 changes its direction and rises. In this process, the pressing force of the rivet push pin 8 against the pin head 8a by the lower end of the rivet punch 5a is released. Therefore, the rivet push pin 8 is lifted by the urging force of the return spring 22 and returned to the initial position shown in FIG. On the other hand, since the pressing force against the upper working blade 21 of the constant pressure holding source 6 is gradually released as the upper mold shoe 5 is raised, the arm of a material handling robot (not shown) holding the upper working blade 21 is also provided. The part also returns the upper working blade 21 to the initial position shown in FIG. The upper shoe 5 is stopped when it reaches the top dead center shown in FIG.

  As described above, in this embodiment, the self-piercing rivet R is driven from the upper working blade 21 and the upper working blade 21 is held by the arm portion of the material handling robot. Therefore, the first embodiment described above. In addition to the effect of the above, it is not necessary to provide the rivet push-up cam mechanism 11 in the composite press apparatus 1, the configuration of the entire apparatus is simplified, and downsizing can be realized.

  Furthermore, since the pin head 8a of the rivet extrusion pin 8 provided on the upper working blade 21 is directly projected by the rivet punch 5a formed on the upper mold shoe 5, the configuration is further simplified and further space saving is achieved. Can be realized.

  In addition, this invention is not restricted to each embodiment mentioned above, For example, the process part and the narrow pressure part may be provided in the position which the panel-like workpiece | work W left | separated. Further, the pressing process at the processing part may be a punching process, a shearing process or the like in addition to the bending process. Further, the members to be joined may be members having the same kind of material such as steel plates or carbon resins.

1 ... Composite press device,
2 ... Bottom punch,
2a ... molding surface,
2b ... edge part,
2c: Pin guide hole,
2e ... caulking recess,
3 ... Upper processing blade,
3a: Pressurized surface,
3b ... edge blade,
3c ... caulking recess,
4 ... Lower shoe,
5 ... Upper shoe,
5a ... Rivet punch,
6 ... constant pressure holding source,
7 ... pad,
8 ... Rivet extrusion pin,
8a ... pin head,
9 ... Rivet guide tube,
11 ... cam mechanism,
12 ... the base,
12a, 12b ... standing part,
12c ... slide guide,
13 ... Return pressure source,
13a ... coil spring,
13b ... Retainer,
13c ... Spring guide shaft,
14 ... Cam transmission member,
14a ... hook,
14b ... cam receiving surface,
14c ... cam surface,
15 ... Cam pushing member,
15a ... cam surface,
16 ... Cam head,
17 ... Cam driver,
18 ... Push up cam,
18a ... cam receiving surface,
21 ... Upper processing blade,
21a ... pressure surface,
21b ... an edge blade,
21c ... pin guide hole,
21d ... Rivet guide hole,
22 ... Return spring,
B ... Brace material,
Ba: Bonding surface,
R ... Self-piercing rivet,
W: Panel work
Wa ... End

Claims (7)

A first press die and a second press die that can be moved close to and away from above the first press die via a movable movable member. The parts are clamped by the two press dies to have a predetermined shape. In the press molding device to be formed into
A narrow pressure portion that is provided on the opposing surfaces of the two press dies and narrows the pressure by stacking different parts;
A working part that is provided on the opposing surfaces of the two press dies and presses at least one of the different parts;
An extrusion member that is provided on one of the press dies and pushes out the joining member in the direction of the narrow pressure portion;
Protruding means for connecting the base end of the extruding member and the press movable member together and extruding the joining member toward the component through the extruding member to join the component;
The press movable member in a state where the press movable member and the second press mold are connected to each other and the second press mold is pressed against the first press mold and the part is pressed by the processing portion. And pressurizing and holding means for allowing the protruding means to protrude and operate by allowing the lowering of the protruding means by compression displacement. The press forming apparatus according to claim 1, wherein the processing portion is provided in the narrow pressure portion. The extrusion member is provided in the first press mold;
The press molding apparatus according to claim 1 or 2, wherein the protruding means is a cam mechanism that pushes the push-out member in conjunction with a downward movement of the press movable member. The extruding member is provided in the second press mold;
3. The press molding apparatus according to claim 1, wherein the protruding means is a punch member that operates integrally with the press movable member. The press forming apparatus according to any one of claims 1 to 4, wherein the joining member is a rivet that is pushed out by the pushing member and driven into the component. A first press die and a second press die that can be moved close to and away from above the first press die via a movable movable member. The parts are clamped by the two press dies to have a predetermined shape. In the press molding method to form in
After setting different parts stacked on the narrow pressure part provided on the opposing surfaces of the two press dies,
As the press movable member descends, first, at least one of the different parts is pressed in a state where the part is clamped by the narrow pressure portion,
Next, the press molding method is characterized in that the parts are joined in a state where the narrow pressure of the parts is maintained. The press molding method according to claim 6, wherein the different parts are joined by a rivet that is driven in conjunction with a downward movement of the press movable member.

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