CN211247970U

CN211247970U - Bending forming device for automobile C-shaped column

Info

Publication number: CN211247970U
Application number: CN201921697900.0U
Authority: CN
Inventors: 刘海龙; 李阳扶; 罗天学; 王秋峰
Original assignee: Lingyun Southwest Industrial Co ltd
Current assignee: Lingyun Southwest Industrial Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-08-14
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a bending forming device of an automobile C column, which belongs to automobile C column processing equipment and comprises an upper forming block and a lower forming block, wherein the upper forming block and the lower forming block press the front section of the end of the C column into a given shape after being combined, the upper forming block is rotatably arranged above the lower forming block through a hinge structure, and the hinge structure drives the upper forming block to rotate downwards along the bending trend of the front section of the end along the bending trend of the upper forming block when the upper forming block moves downwards to be contacted with the C column to be bent or the lower forming block; the door frame bending machine further comprises a transverse feeding mechanism, wherein the transverse feeding mechanism drives the side pushing mechanism to extrude the door frame so that the front section of the end head is transversely bent to a set radian. The bending forming device can avoid the inner arc wrinkles and depressions of the front end section of the end head of the C column at the bending position as much as possible, and effectively guarantees the structural performance and the attractiveness of the C column.

Description

Bending forming device for automobile C-shaped column

Technical Field

The utility model belongs to the technical field of the stamping forming of car door frame back door C post, especially, relate to a bending forming device of car C post.

Background

The shape of the C column of the automobile door frame rear door is a three-dimensional shape, and the C column needs to undergo two bending processes as shown in figures 1-2 in the pressing process, wherein figure 1 shows that the front section a of the end head of the C column is bent downwards to form a given radian, and figure 2 shows that the front section a of the end head is bent transversely to form a certain radian. In the prior art, when a stamping die is directly used for bending in the vertical or horizontal direction, the poor conditions of inner arc wrinkling and sinking are easy to occur at the bending part, and the structural performance and the aesthetic property of the C column are seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned technical problem, provide a bending forming device of car C post, this bending forming device of car C post has solved prior art effectively, when adopting stamping die to bend, the technical problem of the interior arc puckering, sunken bad situation appear easily in the department of bending.

The technical scheme of the utility model as follows: a bending forming device for an automobile C column comprises an upper forming block and a lower forming block, wherein the front end section of the end head of the C column is pressed into a given shape after the upper forming block and the lower forming block are combined, the upper forming block is rotatably arranged above the lower forming block through a hinge structure, and the hinge structure drives the upper forming block to rotate downwards along the bending trend of the front end section of the end head as the upper forming block moves downwards to be in contact with the C column to be bent or the lower forming block; the door frame bending machine further comprises a transverse feeding mechanism, wherein the transverse feeding mechanism drives the side pushing mechanism to extrude the door frame so that the front section of the end head is transversely bent to a set radian.

The utility model has the advantages that: the utility model discloses an articulated last type piece that sets up type piece top down realizes bending in vertical side, because last type piece is when cooperating with type piece down, it is circular arc pivoted that the end anterior segment bending direction along the C post is done to last type piece, the punching machine promotes that the extrusion contacts to the C post or down when type piece down, level and smooth rotary motion appears in last type piece, the formation of bending is pushed down the C post to the same trend, and horizontal feed mechanism promotes the horizontal bending of end anterior segment shaping of C post simultaneously, treat horizontal feed mechanism and the equal punching press of last type piece and target in place the back, the shaping of C post is stable, can avoid appearing the inner arc fold in the department of bending, bad conditions such as sunken, the structural performance and the aesthetic property of C post have been guaranteed effectively.

Drawings

FIG. 1 is a schematic diagram showing the comparison between the front and rear punching of a C-pillar in the vertical direction.

FIG. 2 is a schematic diagram showing the comparison between the front and rear of the C-pillar transverse punching.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic view of the structure of fig. 3 with the upper mold plate removed.

Fig. 5 is a schematic structural view of the upper mold block in the structure shown in fig. 4 rotated by a certain angle when pressed downward.

Fig. 6 is a schematic structural view of the side pushing mechanism in the structure shown in fig. 3 before being pushed into position by the slotting cutter mechanism.

Fig. 7 is a schematic structural position diagram between the upper mold block and the limiting block when the upper mold block rotates.

Fig. 8 is a schematic structural view of a plurality of bending devices according to the present invention.

Element number description: the device comprises an upper molding block 1, a lower molding block 2, a side pushing mechanism 3, a slotting tool mechanism 4, a limiting plate 5, a limiting block 6, a spring 7, a slide rail 8, an upper die plate 9 and an upper die mounting plate 10.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 3-6, a bending and forming device for a C-pillar of an automobile comprises an upper molding block 1 and a lower molding block 2, wherein the upper molding block 1 and the lower molding block 2 are combined to press the front end section of the C-pillar into a predetermined shape, the upper molding block 1 is rotatably mounted above the lower molding block 2 through a hinge structure, and the hinge structure drives the upper molding block 1 to rotate downwards along the bending trend of the front end section of the C-pillar or the lower molding block 2 to be bent as the upper molding block 1 moves downwards to be in contact with the C-pillar or the lower molding block 2 to be bent; namely, when the upper mould block 1 is pressed down, the upper mould block 1 starts to rotate adaptively when contacting with the front section of the C column end head on the lower mould block 2, or when contacting with the lower mould block 2, the rotation track of the upper mould block 1 is made to follow the bending direction of the front section of the C column end head, thereby punching the C column between the upper mould block and the lower mould block into a preset shape in the vertical direction. In addition, the present embodiment further includes a transverse feeding mechanism, which drives the side pushing mechanism 3 to press the door frame so as to make the front end section of the end head transversely bend to a predetermined arc, and the side pushing mechanism 3 may be a stamping slider capable of moving toward the C-pillar. During actual processing, the upper and the lower mould blocks can be driven by the same component, namely when the upper mould block 1 is pressed down, the side pushing mechanism 3 also moves towards the transverse bending direction of the C column, and finally when the upper and the lower mould blocks and the side pushing mechanism 3 move in place, the front section of the end head of the C column is punched and bent to be formed. For the direct stamping forming of traditional upper and lower type piece motion in vertical direction, can not appear a large amount of folds and sunken on its crooked intrados, guaranteed the stamping forming quality of C post.

In specific implementation, as shown in fig. 3, preferably, a convex arc surface located on the right side is processed on the lower molding block 2, one surface of the upper molding block 1, which is in contact fit with the arc surface, is a smooth plane, the end part of the upper molding block 1, which is close to the front end of the end head, is a front end surface, the front end of the upper molding block 1 is hinged to the upper molding block 1 through the hinge structure, and a stopper for limiting the upward lifting and rotation of the rear end of the upper molding block is arranged above the rear end of the upper molding block 1, so that when the upper molding block 1 rotates in a self-adaptive manner due to the fact that the upper molding block presses down to the smooth plane and contacts with the arc surface, the rear end of the upper molding block 1 is limited by the stopper and can only rotate within a predetermined angle range, and therefore the rotary punching motion of the upper molding block 1 is more accurate and stable, and the quality is. Further, the stopper in the above embodiment may be manufactured as the following structure: it mainly includes limiting plate 5, spring 7 and slide rail 8, and wherein,

spring

7 and 8 homogeneous ends of slide rail are connected on cope match-plate pattern 9, and cope match-plate pattern 9 meets with the punching machine main shaft, and limiting plate 5 is located the top of 1 rear end of cope match-plate pattern and is run through by the other end of slide rail 8, and the spring 7 other end is connected on limiting plate 5 to limiting plate 5 slides the established distance from top to bottom along slide rail 8 when upper match-plate pattern 1 articulates and rotates certain angle and extrusion contact limiting plate 5. Limiting plate 5's setting can control 1 boards of upper mould piece in rotatory, the smooth motion range of punching press time, guarantees the crooked degree of punching press C post, and cooperates spring 7's elastic action, can be so that when bending C post down, C post bending is more level and smooth stable, promotes the bending quality.

In addition, as shown in fig. 7, the upper portion of the rear end surface of the upper die block 1 of the present embodiment has a rounded corner, and when the upper die block 1 is hinged, the rounded corner is always tangent to the bottom surface of the limiting plate 5, so that when the upper die block 1 is limited to rotate, the upper die block is more smoothly contacted with the limiting plate 5, and the rotary punching motion of the upper die block 1 is better maintained.

This embodiment still includes setting up in the stopper 6 that sets up by the top of the front end of cope match-plate pattern 1, as shown in fig. 7, this stopper 6 is fixed in on the cope match-plate pattern 9, stopper 6 keeps contacting with the top of cope match-plate pattern 1 all the time when cope match-plate pattern 1 rotates for cope match-plate pattern 1 has a more stable punching press force when rotatory and punching press C post smoothly and maintains, ensures the bending forming effect. Further, in order to improve the above effect and avoid the stopper 6 interfering with the rotation of the upper die block 1, the bottom surface of the stopper 6 has a wedge surface inclined toward the upper rear, and the inclination angle of the wedge surface must be large enough to allow the upper die block 1 to rotate without interference within a predetermined range of hinge rotation angle.

The transverse feeding mechanism of the embodiment can be various, and all the moving mechanisms which can be matched with the upper molding block 1 to rotate and punch to transversely bend the front end section of the end head of the C column can be adopted; here, as shown in fig. 6, the preferred structure of the present embodiment is as follows: the C-shaped column end bending device mainly comprises a slotting tool mechanism 4 capable of moving up and down, wherein an inclined contact surface in contact fit with the side pushing mechanism 3 is arranged at the bottom end of the slotting tool mechanism 4 towards one side of the side pushing mechanism 3, and the inclined direction and the size of the inclined contact surface are such that the side pushing mechanism 3 is pushed to transversely bend the front end section of the C-shaped column into a set radian when the slotting tool mechanism 4 moves up and down.

The C-pillar press bending apparatus of the present embodiment may be provided with a plurality of units as needed, and the combined structure thereof is as shown in fig. 8, and can perform press bending of 4C-pillars. Considering that a plurality of devices are arranged at the same time and are driven at the same time, all the bending forming mechanisms can be connected to a common upper template 9 through respective upper die mounting plates 10, and corresponding stamping movement can be realized through up-down movement of the upper template 9.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a bending forming device of car C post, includes type piece and lower type piece, go up the type piece and press into established shape with the end anterior segment of C post after the type piece combines down, its characterized in that: the upper molding block is rotatably arranged above the lower molding block through a hinge structure, and the hinge structure drives the upper molding block to rotate downwards along the bending trend of the front section of the end head as the upper molding block moves downwards to be in contact with the C column to be bent or the lower molding block;

the door frame bending machine further comprises a transverse feeding mechanism, wherein the transverse feeding mechanism drives the side pushing mechanism to extrude the door frame so that the front section of the end head is transversely bent to a set radian.

2. The apparatus for press bending and forming a C-pillar of an automobile according to claim 1, wherein: the lower molding block is provided with an arc surface, one surface of the upper molding block, which is in contact fit with the arc surface, is a smooth plane, the end part of the front section of the end head of the upper molding block is a front end surface, the front end part of the upper molding block is hinged and installed through the hinge structure, a stopper for limiting the upward lifting and the rotation of the rear end of the upper molding block is arranged above the rear end part of the upper molding block, and the stopper enables the rear end of the upper molding block to be limited by the stopper and only rotate within a set angle range when the upper molding block rotates in a self-adaptive manner due to the fact that the upper molding block is pressed down to the smooth plane and is in contact with the arc surface.

3. The apparatus for press bending and forming a C-pillar of an automobile according to claim 2, wherein: the stopper includes limiting plate, spring and slide rail, and wherein, the equal one end of spring and slide rail is connected on the cope match-plate pattern, and the cope match-plate pattern meets with the punching machine main shaft, and the limiting plate is located the top of cope match-plate pattern rear end and is run through by the other end of slide rail, and the spring other end is connected on the limiting plate to the limiting plate is slided set distance from top to bottom along the slide rail to the limiting plate when the cope match-plate pattern articulated rotation to certain angle and extrusion contact limiting plate.

4. The apparatus for press bending and forming a C-pillar for an automobile according to claim 3, wherein: the upper portion of the rear end face of the upper shaping block is provided with a fillet, and when the upper shaping block is hinged to rotate, the fillet face of the fillet is tangent to the bottom face of the limiting plate all the time.

5. The apparatus for press bending and forming a C-pillar for an automobile according to claim 3, wherein: the upper die plate is characterized by further comprising a limiting block arranged above the front end of the upper die block, the limiting block is fixed on the upper die plate, and the limiting block is always in contact with the top of the upper die block when the upper die block rotates.

6. The apparatus for press bending and forming a C-pillar for an automobile according to claim 5, wherein: the bottom surface of the limiting block is provided with a wedge-shaped surface which inclines towards the back and the upper part, and the inclination angle of the wedge-shaped surface is required to be large and small to allow the upper type block to rotate without interference within a preset hinge rotation angle range.

7. The apparatus for press bending and forming a C-pillar of an automobile according to claim 1, wherein: the transverse feeding mechanism comprises a slotting tool mechanism capable of moving up and down, an inclined contact surface in contact fit with the side pushing mechanism is arranged at the bottom end of the slotting tool mechanism towards one side of the side pushing mechanism, and the inclined direction and the size of the inclined contact surface need to enable the side pushing mechanism to push the front end section of the C column to be bent into a set radian towards the transverse direction when the slotting tool mechanism moves up and down.