CN109834179B

CN109834179B - Flanging mechanism

Info

Publication number: CN109834179B
Application number: CN201910193732.XA
Authority: CN
Inventors: 苏哲; 张翔鹤; 李凯勤; 张千; 翟海峰; 黄晓伟; 韩国伟; 陈春瑜; 寇全真; 赵永星; 王才; 吕军旺
Original assignee: Exquisite Automotive Systems Co Ltd
Current assignee: Exquisite Automotive Systems Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-06-16
Anticipated expiration: 2039-03-14
Also published as: CN109834179A

Abstract

The invention provides a flanging mechanism, which is used for forming vertical turnover of a component edge of a component relative to a component body, and comprises a fixed component for fixing the component body, wherein a component forming surface is arranged on the fixed component, the flanging mechanism also comprises a base body and a mounting seat arranged on the base body through a guide component, the mounting seat can slide relative to the base body in a guide way due to bearing external force, a flanging insert is fixedly arranged on the mounting seat, an insert forming surface is formed on the flanging insert, and under the driving of the external force, the flanging insert follows the mounting seat, so that the insert forming surface is pressed against the component edge to be matched with the component forming surface, and the vertical turnover of the component edge relative to the component body and the bending towards one side in the component body are sequentially formed. The flanging mechanism can reduce the influence of flanging resilience on the flanging quality of the component, and can also reduce the galling phenomenon of a flanging insert on the component in the flanging process, thereby effectively improving the flanging quality of the component.

Description

Flanging mechanism

Technical Field

The invention relates to the technical field of stamping equipment, in particular to a flanging mechanism.

Background

In order to achieve the effects of convenience in connection and the like, a large number of vertical flanging processes are adopted for automobile sheet metal parts, the existing vertical flanging processes are difficult to control, the problems of flanging resilience, galling (burrs appear on the surface of a component) and the like are easy to occur, the quality of the component is influenced, and even the manufacturing period of a die and the time for the automobile to market are influenced. The existing product with vertical flanging in the design process of the cold stamping die usually adopts the mode of direct flanging of an upper die flanging knife block or side turning of a wedge.

Wherein, adopt the direct turn-ups's of turn-ups sword piece form to carry out perpendicular turn-ups to the product, because there is not resilience compensation, make the turn-ups of component probably influence final turn-ups effect because of resilience, and at turn-ups in-process, in order to reduce resilience, can set up the distance between the fixed subassembly of turn-ups sword piece and fixed component into the thickness that is less than the component usually, at this moment, the surface of component appears scraping defects such as flower and burr easily, and adopt the form that the slide wedge turned on one's side, though can have certain resilience compensation, nevertheless adopt the form that the slide wedge turned on one's side, the distance between sword piece and the fixed subassembly still need be less than the thickness of component, also can appear the component surface and be scraped defects such as flower.

Disclosure of Invention

In view of the above, the present invention is directed to a flanging mechanism, so as to enable a member to have a better flanging quality.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a flanging mechanism for vertically folding the edge of a member which can form the member relative to a member body, the flanging mechanism comprises a fixing component for fixing the member body, a component forming surface is constructed on the fixing component, and the flanging mechanism further comprises:

a substrate;

the mounting seat is arranged on the base body through a guide assembly, bears external force and can slide relative to the base body in a guide mode;

the flanging insert is fixedly arranged on the mounting seat, an insert forming surface is constructed on the flanging insert, and under the driving of the external force, the flanging insert follows the mounting seat, so that the insert forming surface is pressed against the edge of the component to be matched with the component forming surface, and the component edge is vertically turned over relative to the component body and bent towards one side inside the component body.

Further, the insert molding surface comprises a first molding surface and a second molding surface which is connected with the first molding surface, and the second molding surface is obliquely arranged relative to the first molding surface; the component forming surface comprises a third forming surface and a fourth forming surface which is connected and arranged below the third forming surface, the third forming surface is parallel to the first forming surface, and the fourth forming surface is parallel to the second forming surface.

Furthermore, the insert molding surface further comprises a fifth molding surface which is connected above the second molding surface, the fifth molding surface is parallel to the first molding surface, and the edge of the member is partially bent towards one side of the inner part of the member body.

Further, the guide assembly comprises a first guide unit for forming the first forming surface to press against the edge of the member, and a second guide unit for forming the second forming surface and the fourth forming surface to press against the edge of the member.

Furthermore, the first guide unit comprises a first guide block and a second guide block which are respectively arranged on the base body and the mounting seat, and a vertical guide surface which guides the first molding surface to press against the edge of the component is arranged between the first guide block and the second guide block.

Furthermore, inclined guide surfaces for guiding the flanging insert to move above the edge of the component are arranged on the first guide block and the second guide block.

Further, the second guiding unit comprises a first guiding plate and a second guiding plate which are respectively arranged on the mounting seat and the base body, and guiding inclined planes which are oppositely arranged and can form guiding sliding of the mounting seat relative to the base body are respectively constructed on the first guiding plate and the second guiding plate.

Further, the inclination angles of the guide inclined planes on the first guide plate and the second guide plate are both 45 degrees.

Further, the included angle α between the first and second molding surfaces is 3 °.

Furthermore, a nitrogen cylinder for driving the mounting seat to return is arranged on the mounting seat.

Compared with the prior art, the invention has the following advantages:

according to the flanging mechanism, the component forming surface and the insert forming surface are respectively arranged on the fixed component and the flanging insert, so that the edge of the component can be vertically turned relative to the component body, and the edge of the component can be further bent towards one side of the interior of the component body after the edge of the component is vertically turned, so that the edge of the component has certain resilience supplement, and the influence on the flanging quality of the component due to flanging resilience is reduced. And the galling phenomenon of the component in the flanging process can be reduced, so that the flanging quality of the component can be effectively improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a flanging insert in an initial state according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a first embodiment of the present invention showing a flanging insert moved over the edge of a component;

FIG. 3 is a schematic view of the flanging insert for vertically folding the edge of the component according to the first embodiment of the present invention;

FIG. 4 is a schematic view of a member according to a first embodiment of the present invention after the edge of the member is bent toward the inside of the member body;

FIG. 5 is an isometric view of a substrate and mount configuration according to a first embodiment of the invention;

FIG. 6 is a top view of a substrate and mounting base structure according to one embodiment of the present invention;

FIG. 7 is a cross-sectional view taken at A-A of FIG. 6;

description of reference numerals:

1-component, 11-component edge, 12-component body, 2-base, 3-mount, 4-flanging insert, 40-insert molding surface, 41-first molding surface, 42-second molding surface, 43-fifth molding surface, 5-fixing component, 50-component molding surface, 51-third molding surface, 52-fourth molding surface, 61-first guide unit, 611-first guide block, 612-second guide block, 613-inclined guide surface, 614-vertical guide surface, 62-second guide unit, 621-first guide plate, 622-second guide plate, 7-nitrogen cylinder.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

Example one

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The present embodiment relates to a flanging mechanism, so as to constitute a vertical folding of a member edge 11 of a member 1 relative to a member body 12 of the member 1, and in the present embodiment, the flanging mechanism comprises a fixing component 5 for fixing the member body 12, a base body 2, and a mounting seat 3 arranged on the base body 2 through a guiding mechanism, wherein the mounting seat 3 can receive external force and can slide in a guiding way relative to the base body 2. The flanging mechanism also comprises a flanging insert 4 fixedly arranged on the mounting seat 3, and a fixed component 5 and the flanging insert 4 are respectively provided with a component forming surface 50 and an insert forming surface 40 which are matched with each other, so that the flanging insert 4 can sequentially form the vertical turnover of the component edge 11 relative to the component body 12 and the bending towards one side inside the component body 12.

In the present embodiment, as shown in fig. 1 to 4, the member body 12 may be fixed by the fixing assembly 5, such as a punch and a die core. The edge 11 of the component 1 to be folded is arranged exposed from the fastening assembly 5. The flanging insert 4 is arranged on the side of the flanging insert 4 opposite to the member 1, and comprises a first molding surface 41 and a second molding surface 42 which are sequentially connected from bottom to top. In this embodiment, the first molding surface 41 is disposed perpendicular to the bottom surface of the burring insert 4, and the second molding surface 42 is disposed obliquely with respect to the first molding surface 41. The above-mentioned component forming surface 50 is arranged on the side of the fixing component 5 facing the flanging insert 4, as shown in fig. 1 to 4, the component forming surface 50 specifically comprises a third forming surface 51 and a fourth forming surface 52 which is arranged below the third forming surface 51, and the first forming surface 41 is parallel to the third forming surface 51, and the fourth forming surface 52 is parallel to the second forming surface 42.

With the above arrangement, as shown in fig. 2 to 3, the burring insert 4 of the present embodiment can first make a downward pressing on the component edge 11 following the mounting seat 3 until the top edge of the first molding surface 41 is not higher than the bottom edge of the member edge 11 after being turned, and the member edge 11 now makes a vertical turn with respect to the member body 12. However, normally due to stress, if this step is only done, after the flanging inserts 4 are disengaged, the component edge 11 may have a certain springback due to the stress, so that the final flanging quality is poor. For this reason, in the present embodiment, as shown in fig. 4, after the component edge 11 is vertically folded with respect to the component body 12, the flanging insert 4 can further follow the mounting seat 3, the component edge 11 is pushed toward the inside of the component body 12 by the second forming surface 42 until the second forming surface 42 and the third forming surface 51 clamp the component edge 11, so that the component edge 11 is bent toward the side inside the component body 12, and the bent component edge 11 can have a certain springback compensation, thereby reducing the influence of the springback of the flanging on the final flanging quality of the component 1.

In order to allow the flanging insert 4 to have the above-mentioned action, as shown in fig. 5, in the present embodiment, the flanging insert 4 is fixed on the bottom edge of the side of the mounting seat 3 opposite to the member 1, so that the movement of the mounting seat 3 drives the flanging insert 4 to perform the above-mentioned movement. The mounting base 3 can be fixed on a power output end of a power mechanism, such as a machine tool, so as to be capable of receiving the pushing of the power mechanism and guiding and sliding on the base body 2. The aforementioned base body 2 is arranged fixedly relative to the fixing assembly 5. Specifically, in the present embodiment, the guiding assembly includes a first guiding unit 61 configured to press the first molding surface 41 against the member edge 11, and a second guiding unit 62 configured to press the second molding surface 42 and the third molding surface 51 against the member edge 11. It should be noted that the guiding assembly is only used for guiding the mounting base 3 in the above-mentioned moving direction, in this embodiment, a side guiding plate for limiting the mounting base 3 to move in other directions, such as a lateral direction, and a top guiding sliding plate are further disposed on the mounting base 3, which can refer to the prior art and are not described herein again.

In the present embodiment, as shown in fig. 1 and 2, before the flanging insert 4 presses the component edge 11, the mounting seat 3 further has an action of obliquely moving the flanging insert 4 above the component edge 11 to facilitate the mounting or removal of the component 1 on the fixing assembly 5, and the action is also realized by the first guide unit 61. In a preferred embodiment of the first guiding unit 61, as shown in fig. 5 and 7, a first guiding block 611 is fixedly arranged on the base body 2, a second guiding block 612 arranged opposite to the first guiding block 611 is fixedly arranged on the mounting base 3, and

the first guide block 611 and the second guide block 612 are two guide blocks arranged at intervals on the base body 2 and the mounting base 3, respectively. The first guide block 611 and the second guide block 612 are each provided with an inclined guide surface 613 and a vertical guide surface 614. When the mounting base 3 is in the initial state shown in fig. 1, the inclined guide surfaces 613 on the first guide block 611 and the second guide block 612 are in contact with each other, and when the mounting base 3 is pushed by an external force to move, the mounting base 3 can slide along the inclined guide surfaces 613 on the first guide block 611, so as to drive the flanging insert 4 to move until the flanging insert 4 moves above the member edge 11.

After the flanging insert 4 moves to the position shown in fig. 2, when the mounting seat 3 continues to move, the vertical guide surface 614 on the second guide block 612 of the first guide block 611 abuts, the mounting seat 3 can move vertically and downwardly along the vertical guide surface 614 on the first guide block 611, at this time, the flanging insert 4 can form a downward pressing on the component edge 11, that is, the first molding surface 41 abuts on the component edge 11, until the top edge of the first molding surface 41 is lower than the bottom edge of the component edge 11 as shown in fig. 3, and at this time, the vertical flanging of the component edge 11 relative to the component body 12 is completed.

The second guiding unit 62 is arranged as shown in fig. 4, after the member edge 11 is vertically folded, it can continue to guide the mounting seat 3, that is, the flanging insert 4 pushes the folded member edge 11 towards the inside of the member body 12 until the second forming surface 42 and the third forming surface 51 form an extrusion to the member edge 11, so that the member edge 11 is bent towards the inside of the member body 12, and has a springback compensation, that is, the member edge 11 can be better perpendicular to the member body 12 after springback, so that the member 1 has better final flanging quality.

A preferred embodiment of the second guiding unit 62 is shown in fig. 5, and includes a first guiding plate 621 and a second guiding plate 622 respectively fixed on the mounting base 3 and the base body 2, and the first guiding plate 621 and the second guiding plate 622 are respectively two guiding plates arranged on the base body 2 and the mounting base 3 at an interval to provide a better guiding effect. Specifically, the first guide plate 621 and the second guide plate 622 are provided with opposing guide slopes so that the relative sliding of the two guide slopes causes the guide sliding of the mount 3 on the base body 2. In addition, the inclined guide surfaces are arranged obliquely instead of horizontally, so that the structure of the flanging mechanism can be simplified, and the problem that an additional power source needs to be arranged because the mounting base 3 needs to be pushed horizontally is avoided. Preferably, the inclined angle of the guide inclined surface is 45 degrees, so that galling phenomenon of the flanging insert 4 to the component 1 during flanging is reduced.

After the flanging insert 4 is pressed down to the component edge 11 to vertically fold the component edge 11, the inclined guide surface on the first guide plate 621 abuts against the inclined guide surface 613 on the second guide plate 622, and when the mounting seat 3 is pushed continuously, the second molding surface 42 of the flanging insert 4 pushes the folded component edge 11 toward the interior of the component body 12, and forms a compression on the component edge 11 with the third molding surface 51.

In order to further achieve better flanging quality, in the present embodiment, as shown in fig. 3 and 4, a fifth molding surface 43 located above the second molding surface 42 and connected with the second molding surface 42 is further configured on the side of the flanging insert 4 facing the member 1, and the fifth molding surface 43 is parallel to the first molding surface 41. And when the second molding surface 42 starts to push the edge of the component 1, the top side line of the second molding surface 42 is lower than the top side line of the folded component edge 11, namely, only the lower part of the component edge 11 is folded towards the interior of the component body 12, and the upper part of the component edge 11 is clamped and fixed by the fifth molding surface 43 and the third molding surface 51 and is kept vertical to the component body 12, so that the lower part of the component edge 11 has the rebound guide, and the better flanging quality is achieved.

In order to facilitate the resetting of the mounting seat 3, in this embodiment, a nitrogen cylinder 7 for driving the mounting seat 3 to return is further disposed on the mounting seat 3, the nitrogen cylinder 7 may be an existing mature product, and its working method may refer to an existing mature technology, which is not described herein again.

In addition, in order to further improve the flanging quality, in the present embodiment, the included angle α between the first molding surface 41 and the second molding surface 42 is 3 °, that is, the included angle between the lower member edge 1111 and the upper member edge 1111, which are bent inward into the member body 12, is 3 °.

In summary, the flanging mechanism of the present embodiment can be configured to vertically turn the member edge 11 with respect to the member body 12, and after the member edge 11 is vertically turned, the member edge 11 is bent toward one side inside the member body 12, so that the member edge 11 has a certain springback compensation, the influence of flanging springback on the flanging quality of the member 1 is reduced, and the final flanging quality of the member 1 is improved. Furthermore, the above-mentioned springback compensation arrangement also reduces galling caused by over-clamping of the component edge 11.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A flanging mechanism for vertical folding of a component edge (11) which can form a component (1) relative to a component body (12), comprising a fixing assembly (5) for fixing the component body (12), characterized in that: an assembly forming surface (50) is constructed on the fixed assembly (5), and the flanging mechanism further comprises:

a base body (2);

the mounting seat (3) is arranged on the base body (2) through a guide assembly, receives external force and can slide relative to the base body (2) in a guide way;

the flanging insert (4) is fixedly arranged on the mounting seat (3), an insert forming surface (40) is formed on the flanging insert (4), and under the driving of the external force, the flanging insert (4) follows the mounting seat (3), so that the insert forming surface (40) is pressed against the component edge (11) to be matched with the component forming surface (50), and the component edge (11) is vertically turned over relative to the component body (12) and bent towards one side inside the component body (12) in sequence;

the insert molding surface (40) comprises a first molding surface (41) and a second molding surface (42) which is connected above the first molding surface (41), and the second molding surface (42) is obliquely arranged relative to the first molding surface (41); the assembly forming surface (50) comprises a third forming surface (51) and a fourth forming surface (52) which is arranged below the third forming surface (51) in an abutting manner, the third forming surface (51) is parallel to the first forming surface (41), and the fourth forming surface (52) is parallel to the second forming surface (42).

2. The turn-ups mechanism of claim 1, characterized in that: the insert molding surface (40) further comprises a fifth molding surface (43) which is connected above the second molding surface (42), the fifth molding surface (43) is parallel to the first molding surface (41), and the component edge (11) is partially bent towards one side inside the component body (12).

3. The turn-ups mechanism of claim 2, characterized in that: the guiding assembly comprises a first guiding unit (61) for forming the first forming surface (41) against the component edge (11), and a second guiding unit (62) for forming the second forming surface (42) and the fourth forming surface (52) against the component edge (11).

4. The turn-ups mechanism of claim 3, characterized in that: the first guide unit (61) comprises a first guide block (611) and a second guide block (612) arranged on the base body (2) and the mounting seat (3), respectively, and a vertical guide surface (614) guiding the first molding surface (41) against the component edge (11) is arranged between the first guide block (611) and the second guide block (612).

5. The turn-ups mechanism of claim 4, characterized in that: inclined guide surfaces (613) for guiding the flanging insert (4) to move above the component edge (11) are arranged on the first guide block (611) and the second guide block (612).

6. The turn-ups mechanism of claim 3, characterized in that: the second guide unit (62) comprises a first guide plate (621) and a second guide plate (622) which are respectively arranged on the mounting seat (3) and the base body (2), and guide inclined planes which are oppositely arranged and can form the guide sliding of the mounting seat (3) relative to the base body (2) are respectively constructed on the first guide plate (621) and the second guide plate (622).

7. The turn-ups mechanism of claim 6, characterized in that: the inclined angles of the guide slopes on the first guide plate (621) and the second guide plate (622) are both 45 degrees.

8. The flanging mechanism according to claim 1, characterized in that the included angle α between the first molding surface (41) and the second molding surface (42) is 3 °.

9. The turn-up mechanism according to any one of claims 1 to 8, characterized in that: and a nitrogen cylinder (7) which is used for driving the mounting seat (3) to return is arranged on the mounting seat (3).