JPS5916630A - Press die for bend-working marginal part of roof panel provided with opening part - Google Patents

Abstract

PURPOSE:To obtain a press die which reduces the number of processes and the number of dies, by providing a mechanism for executing not only bend-working of the whole circumference of the opening marginal part of a roof panel but also bend-working of its front and rear edge parts. CONSTITUTION:A roof panel 2 which bends temporarily a marginal part 20 of an opening part 6 and its front and rear edge parts 27, 31 is placed on a die 1, and a punch 45 is made to descend. As the punch 45 descends, the edge part 20 of the opening part 6 is pressed by a formed face 21 and a formed face 8 of a fixed bend die 7, and bend-working for forming is executed. Also, a cam driver 63 of the punch 45 is engaged to a cam face 19 of a cam slider 16, and an edge part 11 is pressed by a formed face 10 of a movable bend punch 9 and a formed face 8 of the fixed bend die 7, and bend-working for forming is executed. Also, cam faces 55, 59 of movable bend punches 53, 58 of the punch 45 are made to press-contact with operating cam faces 29, 35 of cam blocks 30, 34 of the die 1, respectively, and the edge parts 27, 31 are formed to a prescribed shape, respectively, between formed faces 56, 60 and formed faces 28, 32.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press mold for bending the opening periphery and the panel outer periphery of an automobile roof panel having an opening, and particularly relates to a press die for bending the opening periphery and panel outer periphery of an automobile roof panel having an opening. This invention relates to a press die suitable for forming and bending the peripheral edge of a roof panel into an acute angle.

In recent years, many automobile roof panels have relatively large, approximately quadrilateral openings, and windows have been attached to these openings to let in sunlight, wind, and the like. Furthermore, the front and rear windows of the automobile are attached to the front and rear of the roof panel. In order to add these windows, the periphery of the opening and the front and rear outer peripheries of the panel are bent downward (toward the interior of the car), and a window frame, drainage groove, etc. Must be able to be welded. Moreover, this bent part is
The window sill is bent deeper than its periphery, ie at an acute angle to the roof panel, in order to ensure that the component does not reduce the area of the window.

Forming of such roof panels is usually done by press working, but when the periphery is bent at an acute angle, with a simple press mold, the formed roof panel will engage with the bend die or pend punch. It becomes impossible to take out the roof panel as is. Therefore, in the past, the bending process of the peripheral edge was divided into multiple steps, and the roof panel was moved horizontally in each step to be removed from the mold.

For this reason, in the past, not only was an extra expensive press machine and a large number of press molds required, but also transport means, positioning means, etc. were also required, resulting in a significant increase in cost and process time. It was 5-. Therefore, the present inventors developed a press that can form and bend the entire circumference of the opening of an automobile roof panel, etc. in one step, and that can easily remove the formed roof panel, etc. from the mold. He invented the mold and applied for it first. This allows a bend die or pend punch provided at a position corresponding to one of the mutually opposing peripheral edges of the opening to be movable in the horizontal direction, and urges the bend die or pend punch outward, that is, in a direction away from the opening peripheral edge. At the same time, the bend die or pen punch is moved inward as the upper die is lowered.

The present invention is a further improvement of the previous application, and it is possible to bend the entire circumference of the opening and at the same time bend the front and rear edges of the roof panel. The object is to obtain a press mold that can further reduce the number of press molds and molds.

In order to achieve this objective, the present invention provides a press mold for the opening periphery similar to that of the earlier application, and is movable in the horizontal direction to an upper mold at a position corresponding to the front and rear edges of the roof panel. Each of the movable bend punches is provided with a movable bend punch that is biased outwardly at a lower die, and at least one of the movable bend punches is movable horizontally and biased inwardly (towards the center of the roof panel). A movable bend die is provided, and the movable pen punch and the movable bend die are moved in a direction opposite to the urging direction thereof by lowering the upper die.

Next, one embodiment of the present invention will be explained with reference to the drawings.
As shown in the figure and FIG. 2, the lower mold 1 is provided with a vertical recess 3 that roughly corresponds to the planar shape of the roof panel 2, and a pad 4 is vertically slidable within the four parts 3. It is provided. This pad 4 is constantly urged upward by a spring 5. Further, a bend diamond is fixedly provided on the lower mold 1 at a position corresponding to the opening 6 of the roof panel 2. A molding surface 8 inclined outward and downward is formed on the outer peripheral surface of this fixed bend diamond.

Behind the fixed penddia (to the right in the figure), there is a pad 4.
A movable pend punch 9 is provided on the top so as to be slidable in the front-rear direction. A forming surface 10 inclined at an acute angle is formed on the front surface of the movable bend punch 9.
0 and the molding surface 8 of the fixed pend diamond, the rear edge 11 of the opening 6 of the roof panel 2 is press-molded at an acute angle with respect to the roof panel 2. A spring 12 is provided between the movable bend punch 9 and the pad 4, and urges the bend punch 9 rearward, that is, in a direction away from the rear edge 11 of the opening 6 of the roof panel 2. A guide 13 is provided on the rear surface of the movable pend punch 9,
It is guided by a guide block 15 that protrudes from the lower die 1 through the opening 14 of the pad 4.

A cam slider 16 is integrally provided in front of the movable pend punch 9, and this cam slider 16 protrudes through an opening 17 formed in the fixed pend punch to a position corresponding to the opening 6 of the roof panel 2, and has a front end thereof. An upwardly extending cam arm 18 is provided. A cam surface 19 is formed on the rear surface of this cam arm 18.

A bend punch 22 is integrally provided on the front part (left side in the figure) of the pad 4, and has a molded surface 21 formed thereon, which the front edge 20 of the opening 6 of the roof panel 2 comes into contact with. The front edge 20 of the opening 6 of the roof panel 2 is press-molded at an acute angle with respect to the roof panel 2 by the surface 21 and the molding surface 8 of the fixed pend diamond. This bend punch 2
2 has an actuating cam surface 23 tilted backward and downward.
is formed. A movable bending die 25 having a cam surface 24 that contacts the operating cam surface 23 is mounted on the lower die 1 so as to be slidable in the front-rear direction. A spring 26 is provided between the movable bend die 25 and the lower mold 1, and urges the bend die 25 rearward. A molding surface 28 is formed on the front surface of the movable bending die 25 for abutting against and molding the front edge 27 of the roof panel 2. Further, at the front end of the lower die 1, an operating cam surface 29 is provided which is inclined backward and downward.
A cam block 30 is provided.

At the rear of the pad 4, there is a rear edge 3 of the roof panel 2 on the rear surface.
A bending die 33 is integrally provided with a molding surface 32 that contacts the molding surface 1 . Further, a cam block 34 is provided at the rear end of the lower die 1, and an operating cam surface 35 inclined forward and downward is formed on the front surface of the cam block 34.

As shown in FIGS. 1 and 4, the left side of the pad 4 (first
A bend punch 36 that is integrated with the front bend punch 22 is fixed to the lower part in the figure, and the right side of the bend punch 36 is fixed to the lower part.
A molded surface 38 is formed on which the left edge 37 of the opening 6 of the roof panel 2 comes into contact. The left edge 37 of the opening 6 of the roof panel 2 is press-molded to the roof panel 2 at an acute angle by this molding surface 38 and the molding surface 8 of the fixed bend diamond.

Further, as shown in FIGS. 1 and 5, a movable bend punch 39 similar to the movable bend punch 9 is mounted on the right side (upper part in FIG. 1) of the pad 4 so as to be slidable in the left and right direction. It is placed. A forming surface 40 inclined at an acute angle is formed on the left side of the movable pend punch 39, and the right edge 41 of the opening 6 of the roof panel 2 is formed by this forming surface 40 and the forming surface 8 of the fixed bend diamond. ing. A spring 42 is provided between the movable pent punch 39 and the pad 4, and urges the movable bend punch 39 to the right, that is, outwardly with respect to the roof panel 2.

A cam slider 43 is integrally provided on the left side of the movable bend punch 39, and this cam slider 43 extends through an opening 17' formed in the fixed bend die I to a position corresponding to the opening 6 of the roof panel 2, and extends from its end to a position corresponding to the opening 6 of the roof panel 2. A cam surface 44 is formed on the portion.

Next, the upper mold will be explained. As shown in FIG. 2, the upper mold 45 is provided with a pad 46 that is slidable in the vertical direction, and this pad 46 is always urged downward by a spring 47. . On the lower surface of the pad 46, upper molds are provided at a position facing the pend punch 22 and movable bend die 25 at the front, a position facing the movable pend punch 9 behind the opening 6, and a position facing the bend punch 33 at the rear. Surfaces 48, 49, 50 are formed so that the front of the opening 6 of the roof panel 2, the vicinity of the rear edge 20.degree. It has become. Further, as shown in FIGS. 4 and 5, upper mold surfaces 51 and 52 are formed on the left and right sides of the lower surface of the pad 46 at positions facing the bend punch 36 and the movable bend punch 39, respectively, and the openings of the roof panel 2. Part 6 left.

The right edges 37 and 41 are pressed and fixed.

Further, a movable bend punch 53 is provided on the lower surface of the front part of the upper mold 45 and is supported slidably in the front and back direction along the upper mold 45. energized.

A cam surface 55 is formed on the front surface of the movable bend punch 53, which contacts the operating cam surface 29 of the cam block 30, which is provided on the lower mold 1. A forming surface 56 is formed between the molding surface 28 of the movable bending die 25 and forming the front edge 27 of the roof panel 2 at an acute angle with respect to the roof panel 2. A movable pend punch 58 is also provided on the rear lower surface of the upper mold 45 and is supported slidably in the front-rear direction along the upper mold 45 and biased rearward by a spring 57. A cam surface 59 is formed on the rear surface of this bend punch 58 and comes into contact with the operating cam surface 35 of the cam block 34 provided on the lower mold 1.

A molding surface 60 for molding the rear edge portion 31 of the roof panel 2 together with the molding surface 32 of the bend die 33 provided on the lower die 1 is formed on the front surface.

Furthermore, as shown in FIGS. 3 and 5, the upper die 45 includes:
Two arms 6'l, 6214- are provided that project downward through the opening 6 of the roof panel 2 when the upper mold 45 is lowered, and cam drivers 63, 64 are provided at the lower ends of these arms 61, 62, respectively. The cam drivers 63, 64 are adapted to abut the cam surfaces 19, 44 of the cam sliders 16, 43 provided on the lower mold 1, respectively, to operate them.

Next, to explain the operation of the above embodiment, the roof panel 2 is formed by pressing the opening 60 and the peripheral edge 11 of the roof panel 2 using another press die.
20.37.41, the front edge 27 degrees and the rear edge 31 are temporarily bent at approximately right angles. Note that the final bending of both side edges of the roof panel is completed during this temporary bending. This roof panel 2 is positioned as shown in FIG. 2 and placed on the lower mold 1.

At this time, a horizontally movable pend punch 9°39
and bend die 25 each have a spring of 12°42.26
Due to the action of the roof panel 20 peripheral portion 11, 41.2
It is located away from 7 and also has a bend punch of 22.3.
6 and the bend die 33 are in the raised position by the spring 5, so they do not interfere with the work of placing the roof panel 2.

In this state, when the upper mold 45 is lowered by a drive device (not shown), the upper mold surfaces 48, 49, 50, 51, 52 capent haunches 9,
The roof panel 2 is held between the roof panel 22, 36, 39 and the bend die 33, the pad 4 is pressed down against the spring 5, and the pad 46 is raised against the spring 47. When the pend punch 22 descends, its operating cam surface 23 causes the cam surface 2 of the movable bend die 25 to
4 is pressed, and the movable bend die 25 moves forward against the spring 26. The movable bending die 25 then comes into contact with the front edge 27 of the roof panel 2 and pinches the vicinity of the front edge 27 of the roof panel 2 between it and the upper mold surface 48.

When the bend punches 22 and 36 descend, the front edge of the opening 6 of the roof panel 2 is formed between the respective forming surfaces 21 and 38 and the forming surface 8 of the fixed bend die I, as shown in FIGS. 3 and 4. 20 and the left edge 37 are pressed to perform the forming and bending process.

In addition, as the upper die 45 descends, the arm 61 is moved to the roof panel 2.
The cam driver 63 at the lower end of the cam driver 63 is engaged with the cam surface 19 of the cam slider 16 .

Due to this engagement and the guidance between the guide 13 and the guide plotter 15, the movable pend punch 9 is moved forward against the spring 12, as shown in FIG. Thereby, the rear edge 11 of the opening 6 of the roof panel 2 is disposed between the forming surface 10 of the movable bending punch 9 and the forming surface 8 of the fixed bending diamond.
is pressed and bent into a predetermined shape. Similarly, the cam driver 64 at the lower end of the arm 62 is connected to the cam slider 43.
By engaging the cam surface 44 of the movable pend punch 39 to the left as shown in FIG. 6 right edge 4
1 is molded.

Thus, the entire peripheral edge 11 of the opening 6 of the roof panel 2.
20.37, 41 are molded in one step.

Further, as the upper die 45 is lowered, the cam surfaces 55.59 of the front and rear movable bend punches 53, 58 are moved to the operating cam surfaces 29.35 of the cam blocks 30.34 provided on the lower die 1.
The movable pen punch 53 at the front is moved backward against the spring 54, and the movable pen punch 58 at the rear is moved forward against the spring 57 by the cam action between them. . As a result, as shown in FIG. 3, the roof panel 2
The front edge 27 of the roof panel 2 is formed into a predetermined shape, and the rear edge 31 of the roof panel 2 is formed into a predetermined shape between the molding surface 60 of the movable bend punch 58 and the bend die 33.

Therefore, by simply positioning and placing the roof panel 2 on the lower mold 1 and lowering the upper mold 45, the roof panel 2
The peripheral edges 11, 20, 37, 40 of the opening 6 and the front and rear edges 27, 31 of the roof panel 2 are simultaneously bent into a predetermined shape. Moreover, according to this embodiment,
The outer surface of the roof panel 2 is the upper mold surface 48749, 50,
51.52, the damage to the outer surface is reduced.

Next, when the upper mold 45 is raised, the movable pen punches 53 and 58 at the front and rear of the upper mold 45 are moved forward and backward by the springs 54 and 57, respectively, and the front and rear edges of the roof panel 2 are moved forward and backward. Stay away from 31. In addition, the cam drivers 63 and 64 attached to the upper die 45 are connected to the cam slider 1.
6.43 away from the cam surface 19.44, the movable pend punches 9 and 39 are moved rearward and to the right by the springs 12, 42, respectively, and the rear edge 11 and the right edge of the opening 6 of the roof panel 2 Stay away from 41. Furthermore, as the upper mold 45 rises, the pad 4 of the lower mold 1 is raised by the spring 5, so that the front edge 2° and left edge of the opening 6 of the roof panel 2 supported by the bend punch 22.36 37 are both separated from the fixed bend diamond. And Pendo Punch 2
2, the pressing force of the movable bend die 25 against the cam surface 24 is released, so the movable bend die 25 is moved rearward by the spring 26, and the front edge 2 of the roof panel 2 is moved backward.
Stay away from 7.

In this way, as shown in FIG. 2, the front and rear edges 11, 20, 27, 31 of the roof panel 2 are all separated from at least one of the pend punch or the bend die, and the left and right edges 37, 41 of the opening 6 are also separated from each other. Since it is separated from the fixed bend diamond and the movable bend punch 39, by lifting the roof panel 2 using a vacuum suction device or the like, the roof panel 2 is removed from the lower mold 1 and can be easily extended.

In the above embodiment, the movable bending die 25 is provided at the front, but it may also be provided at the rear.

In that case, the movable pend punch 9 may be provided in front of the opening 6 of the roof panel 2.

As described above, according to the present invention, at least one of the opposing peripheral edges of the front and rear edges of the roof panel and the front, rear, left, and right peripheral edges of the opening thereof is always provided in a direction away from the peripheral edge. A movable pend punch or a movable pend punch and a movable bend die which are biased are provided, and the movable pend punch and movable bend die are moved in the horizontal direction against the biasing force in conjunction with the lowering of the upper die.
21- The front and rear edges of the roof panel and the entire periphery of its opening can be formed and bent in one step, and each periphery can be separated from the bend punch or bend die by simply raising the upper die, and the entire periphery of the opening can be formed and bent after forming. A press mold from which the roof panel can be easily removed can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the lower die of a press mold according to the present invention, and FIG. 2 is a longitudinal sectional view taken along line A-A in FIG.
An explanatory diagram showing the relationship between the upper mold and the roof panel, Fig. 3 is a vertical cross-sectional view similar to Fig. 2 showing the state of bending of the roof panel, and Fig. 4 shows the bending process taken along line B-B in Fig. 1. FIG. 5 is a partial sectional view taken along line C--C in FIG. 1 during bending. 1... Lower mold, 2... Roof panel, 4.46...
Pad, 5, 4. 7... Spring, 6... Opening, 7.
・・Fixed Ben 22- Dodai, 8, 10, 21, 28, 32, 38° 40, 5
6, 60... Molding surface, 9, 39, 53° 58... Movable pend punch, 11, 20, 27° 31.37, 4'
1...Edge, 12,26,42°54.57...Spring, 16.43...Cam slider, 19.24,44
, 55.59... cam surface, 22. ...36...Pend punch, 23.39.35...Operation cam surface, 25.
...Movable bend die, 33...Bend die, 45...
・Upper mold, 48, 49, 50, 51.52... Upper mold surface,
63.64...Cam driver, patent applicant Honda Motor Co., Ltd. 23- Figure 5 Figure 4 171-

Claims (1)

[Claims] In a press mold for bending the peripheral edge of a roof panel having a quadrilateral opening; the opening peripheral edge (11, 2) of the roof panel (2) is
a fixed bending die (7) having a molding surface (8) at a position corresponding to 0, 37, 41); provided on the lower mold (1) so as to be movable in the vertical direction and biased upward; The position corresponding to the two adjacent peripheral edges (20, 37) of the opening (6) of the roof panel (2) and the roof panel (
A pendo punch (22) and a pendo die (33) each having a molding surface (21, 38°32) at a position corresponding to one (31) of the front and rear edges (27, 31) of 2); ), and the other two peripheral edges (
11, 41), and has molding surfaces (10, 40) at positions corresponding to the peripheral edges (11, 41), respectively, when the upper mold (45) is lowered. Cam driver (63, 64) provided on the upper mold (45)
a pair of movable bend punches (9°39) that are moved together toward the peripheral edge (11, 41);
1) horizontally movable and said roof panel (
2) is biased away from the other edge (27) of the front and rear edges (27°31), and
7), and has a molding surface (28) at a position corresponding to the upper mold (4).
5) a movable bend die (25) that is moved toward the other edge (27) in conjunction with the descent of the pend punch (22); each movable in the horizontal direction towards the upper die (45); , and are provided so as to be biased away from the front and rear ends (27, 31) of the roof panel (2), and molded surfaces (56°) are provided at positions corresponding to the front and rear edges (27, 31), respectively. 60) and actuating cam surfaces (29, 35) provided on the lower mold (1) when the upper mold (45) is lowered.
A press die for bending a peripheral edge of a roof panel with an opening, comprising: front and rear movable pend punches (53, 58) that are moved toward the front and rear edges (27, 31), respectively;