CN111822593A

CN111822593A - Composite wedge structure

Info

Publication number: CN111822593A
Application number: CN201910300018.6A
Authority: CN
Inventors: 张应生; 董彬; 马波涛; 窦铁勇; 史洪江; 张宇; 朱雷; 吕军旺; 张跃; 李众; 李欢迎
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-10-27

Abstract

The invention provides a composite wedge structure which is arranged on a stamping die to form flanging molding of a component, wherein the stamping die comprises an upper die holder and a lower die holder, the composite wedge structure comprises a pulley arranged on the lower die holder in a sliding manner, a fixing component fixedly arranged on the pulley and capable of fixing the component, a wedge slide block arranged on the upper die holder in a sliding manner, a flanging insert fixedly arranged on the wedge slide block and a guide mechanism arranged between the wedge slide block and the pulley, and when the upper die holder moves relative to the lower die holder, the wedge slide block can slide relative to the pulley in a guiding manner under the guidance of the guide mechanism, so that the flanging insert can be matched with the fixing component to form vertical flanging of the edge of the component and lateral flanging to one side inside the component body in sequence. The composite wedge structure can complete the lateral flanging of the component in one set of die, reduce the number of the die, reduce the development and manufacturing cost of the die and improve the production efficiency.

Description

Composite wedge structure

Technical Field

The invention relates to the technical field of stamping dies, in particular to a composite wedge structure.

Background

Some of the components need to be formed by a side-flanging process, a typical example being a roof hatch in a vehicle outer cover. At present, two sets of stamping dies are generally required to be developed for carrying out the side flanging process on the components, one stamping die is used for carrying out vertical flanging on the components, then the components are moved to the other stamping die, and then the stamping dies are used for carrying out side flanging on the components. The side flanging process of the component is formed by processing two sets of dies, so that the design, development and processing cost of the dies is greatly increased, and the processing precision of the component is influenced by the multiple positioning of the component on the two sets of dies.

Disclosure of Invention

In view of the above, the present invention is directed to a composite wedge structure, which can complete the lateral flanging process of a component on a set of dies.

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

the utility model provides a compound slide wedge structure, locates on stamping die to can constitute the turn-ups shaping of component, stamping die includes upper die base and die holder, compound slide wedge structure includes:

the pulley is arranged on the lower die base in a sliding manner, a fixing component capable of fixing the component is fixedly arranged on the pulley, a component forming surface is formed on the fixing component, and the component forming surface follows the pulley to form a working position for flanging and forming the component and a non-working position for separating the component from the fixing component;

the wedge sliding block is arranged on the upper die base in a sliding mode, a guide mechanism is arranged between the wedge sliding block and the pulley, and when the upper die base moves relative to the lower die base, the wedge sliding block can slide relative to the pulley in a guiding mode under the guiding of the guide mechanism;

and the flanging insert is fixedly arranged on the wedge slide block, an insert forming surface is constructed on the flanging insert, and the flanging insert can follow the wedge slide block to enable the insert forming surface to be abutted against the edge of the component so as to match the component forming surface in the working position, thereby sequentially forming a vertical flanging of the edge of the component and a lateral flanging of one side of the interior of the component body.

Further, the insert forming surface comprises a first forming surface and a second forming surface which are sequentially connected from bottom to top, and the second forming surface is obliquely arranged relative to the first forming surface; the subassembly shaping face includes from top to bottom in proper order the fourth shaping face that meets, fifth shaping face, sixth shaping face, just the fourth shaping face with the sixth shaping face respectively with first shaping face parallel arrangement, the fifth shaping face with second shaping face parallel arrangement.

Further, the guide mechanism includes a first guide unit that forms the first molding surface to press against the edge of the member, and a second guide unit that forms the first molding surface and the second molding surface to be respectively matched with the sixth molding surface and the fifth molding 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 pulley and the wedge slide block, 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 respectively formed on the first guide block and the second guide block.

Further, the second guide unit comprises a first guide plate and a second guide plate which are respectively arranged on the pulley and the wedge slide block, and a guide inclined plane which guides the first forming surface and the second forming surface to be respectively matched with the sixth forming surface and the fifth forming surface and to be pressed against the edge of the component is arranged between the first guide plate and the second guide plate.

Furthermore, a support member is fixedly arranged on the pulley, a support unit is fixedly arranged on the lower die holder, and the support unit can form a sliding support for the support member.

Furthermore, a lubricating material layer is arranged on the supporting surface of the supporting unit for supporting the supporting piece.

Furthermore, a positioning unit for positioning the component forming surface at the working position is constructed on the lower die base.

Furthermore, a return positioning part is constructed on the pulley, a return positioning part is constructed on the wedge slide block, and the return positioning part can form blocking fit to form positioning for resetting the wedge slide block after forming the component flanging.

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

according to the composite wedge structure, the vertical flanging of the edge of the component relative to the component body and the lateral flanging of the edge of the component towards one side of the interior of the component body can be completed in one set of die through the arrangement of the component forming surface and the insert forming surface, and the die for forming the vertical flanging of the component is not required to be independently developed, so that the die cost can be saved, and the production efficiency of the component is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments 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 structural view of a lower die holder according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an upper die holder according to an embodiment of the present invention;

FIG. 3 is another angular view of FIG. 2;

FIG. 4 is another angular view of FIG. 2;

FIG. 5 is a left side view of a composite wedge structure according to an embodiment of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is a left side view of the overall structure of a composite wedge structure in another state according to an embodiment of the present invention;

FIG. 8 is a top view of a composite wedge structure according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view taken at C-C of FIG. 8;

FIG. 10 is an enlarged view at B of FIG. 9;

fig. 11 is a cross-sectional view taken at D-D in fig. 8.

Description of reference numerals:

1-an upper die holder, 101-an upper die holder body, 102-an upper die holder sliding cover plate, 11-a wedge slider, 111-a flanging insert, 1111-a first molding surface, 1112-a second molding surface, 1113-a third molding surface, 12-a nitrogen spring, 2-a lower die holder, 21-a lower die holder body, 22-a lower die holder sliding cover plate, 23-a nitrogen spring, 24-a supporting unit, 241-a lubricating material layer, 3-a pulley, 31-a fixing component, 311-a fourth molding surface, 312-a fifth molding surface, 313-a sixth molding surface, 32-a supporting piece, 41-a first guide unit, 411-a first guide block, 412-a second guide block, 4131-a first vertical guide surface, 4131-a second vertical guide surface, 4141-first inclined guide surface, 4142-second inclined guide surface, 42-second guide unit, 421-first guide plate, 422-second guide plate, 4231-first guide inclined surface, 4232-second guide inclined surface, 5-positioning unit, 6-buffer unit, 71-return positioning part, 72-return positioning part.

Detailed Description

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

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 composite wedge structure, which is provided on a stamping die to form a flanging of a member, and more particularly, to a lateral flanging of a member edge of a member with respect to a member body. The stamping die comprises an upper die holder 1 and a lower die holder 2. As shown in fig. 1 to 11, the composite wedge structure includes a pulley 3 slidably disposed on the lower die base 2, and a fixing assembly 31 fixedly disposed on the pulley 3 and used for fixing the above components. In addition, the composite wedge structure further comprises a wedge slide block 11 arranged on the upper die holder 1 in a sliding manner, and a flanging insert 111 fixedly arranged on the wedge slide block 11.

The composite wedge structure further comprises a guide mechanism arranged between the wedge slide block 11 and the pulley 3, when the upper die holder 1 moves relative to the lower die holder 2, the wedge slide block 11 can slide relative to the pulley 3 in a guiding manner under the guiding of the guide mechanism, so that the flanging insert 111 can follow the wedge slide block 11 and is matched with the fixing component 31 to sequentially form a vertical flanging of the edge of the component and a lateral flanging of one side of the inner part of the component body.

A preferred embodiment of the lower die holder 2 is shown in fig. 1, the lower die holder 2 includes a lower die holder body 21, lower die holder sliding cover plates 22 are disposed on two opposite sides of the lower die holder body 21, and the two lower die holder sliding cover plates 22 and the lower die holder body 21 can enclose a T-shaped groove. The pulley 3 is adapted to the T-shaped groove, so that the pulley 3 can slide on the lower die holder 2 along the length direction of the T-shaped groove. In this embodiment, the power source for driving the pulley 3 to slide relative to the lower die base 2 is a nitrogen spring 23, and the nitrogen spring 23 may be made by using the existing mature technology, which is not described herein again.

The pulley 3 can slide relative to the lower die holder 2, so that the flanging of the component can be conveniently formed, and the component after flanging can be conveniently taken out from the fixing component 31. Specifically, if the position of the fixing member 31 is kept, the edge of the member is turned up toward the side of the inner side of the member body, and then the edge of the member is stopped by the fixing member 31 when moving upward, which makes it difficult to take out the member. And the pulley 3 can be arranged in a sliding way relative to the lower die holder 2, so that after the component is flanged and formed, the fixing component 31 can follow the pulley 3 to be separated from the position of the blocking component, and the component can be conveniently taken out.

As shown in fig. 1, the fixing member 31 is fixed to a side of the carriage 3 perpendicular to a sliding path of the carriage 3. It should be noted that, in the drawings of the present embodiment, only the punch insert of the fixing assembly 31, which can support the member, is shown, and the pressing block of the fixing assembly 31, which is located above the punch insert, to press the member is not shown in the drawings of the present embodiment.

In the present embodiment, as shown in fig. 5 and 6, a component forming surface is configured on the male die insert, specifically, the component forming surface is configured on the side of the male die insert facing the flanging insert 111, and the component forming surface comprises a fourth forming surface 311, a fifth forming surface 312 and a sixth forming surface 313 from top to bottom in sequence, and the fifth forming surface 312 is arranged obliquely relative to the fourth forming surface 311, and the sixth forming surface 313 is arranged parallel relative to the fourth forming surface 311.

A preferred structure of the upper die holder 1 is shown in fig. 2 to 4, and includes an upper die holder body 101, and two upper die holder sliding cover plates 102 arranged oppositely are fixedly arranged on the upper die holder body 101, and the cross section of each of the two upper die holder sliding cover plates 102 in the length direction is L-shaped so as to enclose a T-shaped groove with the upper die holder body 101, and the wedge slider 11 is adapted to the T-shaped groove and can slide in the T-shaped groove. In this embodiment, the wedge sliding block 11 may have a following structure for forming a flanging of the workpiece and driving the wedge sliding block 11 to reset, and for the nitrogen spring 12 that is connected to the wedge sliding block 11 and is fixed to the upper die base 1, the nitrogen spring 12 may be a conventional nitrogen spring, and will not be described herein again.

The flanging insert 111 is fixedly arranged on the slide wedge block 11, and the flanging insert 111 can be integrally cast with the slide wedge block 11, or can be separately manufactured and fixedly arranged on the slide wedge block 11. The flanging insert 111 is provided with insert molding surfaces, specifically, as shown in fig. 4 to 7, the insert molding surfaces include a first molding surface 1111 and a second molding surface 1112 arranged above the first molding surface 1111 in an abutting manner, the second molding surface 1112 is arranged obliquely relative to the first molding surface 1111, the first molding surface 1111 is parallel to the fourth molding surface 311 and the sixth molding surface 313, and the second molding surface 1112 is parallel to the fifth molding surface 312.

As shown in fig. 9 to 11 with reference to fig. 1 to 8, the above-mentioned guide mechanism includes a first guide unit 41 which constitutes the first molding surface 1111 to press against the edge of the member, and a second guide unit 42 which constitutes the first molding surface 1111 and the second molding surface 1112 to press against the edge of the member in matching with the sixth molding surface 313 and the fifth molding surface 312, respectively. Specifically, the first guiding unit 41 includes a first guiding block 411 fixed on the carriage 3 and a second guiding block 412 fixed on the wedge block 11, and a vertical guiding surface for guiding the first molding surface 1111 to press against the edge of the component is disposed between the first guiding block 411 and the second guiding block 412, for convenience of description, in this embodiment, the vertical guiding surface on the first guiding block 411 is referred to as a first vertical guiding surface 4131, and the vertical guiding surface on the second guiding block 412 is referred to as a second vertical guiding surface 4132.

In addition to the vertical guiding surfaces, in order to enable the first molding surface 1111 to move from the initial position to the position above the edge of the member, in the present embodiment, the first guiding block 411 and the second guiding block 412 are respectively configured with an inclined guiding surface connected to each vertical guiding surface, and for convenience of description, in the present embodiment, the inclined guiding surface on the first guiding block 411 is referred to as a first inclined guiding surface 4141, and the inclined guiding surface on the second guiding block 412 is referred to as a second inclined guiding surface 4142.

The second guiding unit 42 specifically includes a first guiding plate 421 fixed on the pulley 3, and a second guiding plate 422 fixed on the wedge slider 11, and a guiding inclined plane is disposed between the first guiding plate 421 and the second guiding plate 422 for guiding the first forming surface 1111 and the second forming surface 1112 to match with the sixth forming surface 313 and the fifth forming surface 312 respectively and press against the edge of the member. For convenience of description, the guide slope on the first guide plate 421 is referred to as a first guide slope 4231, and the guide slope on the second guide plate 422 is referred to as a second guide slope 4232.

With the above structure, in the embodiment, when the upper die holder 1 is driven by a power mechanism, such as a power output end of a power machine tool, to move downward, the first forming surface 1111 can move to the position shown in fig. 5, that is, to move above the edge of the component, due to the guiding of the first inclined guiding surface 4141 and the second inclined guiding surface 4142. When the upper die holder 1 continues to move downwards, the first molding surface 1111 continues to move downwards due to the guiding of the first vertical guiding surface 4131 and the second vertical guiding surface 4132, and presses the edge of the component, so that the edge of the component is turned downwards relative to the component body.

When the first molding surface 1111 presses the edge of the component downwards until the edge of the component is turned vertically relative to the component body, due to the structural design, the first guiding inclined surface 4231 can abut against the second guiding inclined surface 4232, and when the upper die holder 1 continues to move downwards, the wedge slider 11 can horizontally slide relative to the upper die holder 1, that is, can obliquely move downwards relative to the punch insert, due to the driving of the two guiding inclined surfaces.

At this time, the first forming surface 1111 and the sixth forming surface 313, the second forming surface 1112 and the fifth forming surface 312 may extrude the edge of the member. In order to provide the member with a better flanging effect, in this embodiment, as shown in fig. 5 and 6, the assembly forming surface further includes a third forming surface 1113 which is arranged above the second forming surface 1112 and parallel to the first forming surface 1111. When the first forming surface 1111 and the sixth forming surface 313, the second forming surface 1112 and the fifth forming surface 312 press the edge of the component, the third forming surface 1113 and the fourth forming surface 311 press the edge of the component, and as the upper die holder 1 moves downward, as shown in fig. 7, the edge of the component is flanged to one side of the interior of the component body.

It should be noted that, since the fixing assembly 31 can slide with the pulley 3 relative to the lower die holder 2, the position of the pulley 3, which can form flanging of the component, relative to the lower die holder 2 is the working position, and is also the working position of the assembly forming surface. After the component is flanged and formed, the component forming surface moves to a position where the component can be taken out along with the pulley 3, wherein the position is a non-working position of the pulley 3 relative to the lower die base 2 and is also a non-working position of the component forming surface.

In order to position the working position of the component forming surface, so as to improve the positioning accuracy of the component forming surface and improve the flanging quality of the component, in this embodiment, as shown in fig. 1, a positioning unit 5 for positioning the component forming surface at the working position is further fixedly arranged on the lower die holder 2, and specifically, the positioning unit 5 includes two limiting blocks arranged at intervals and located on the sliding path of the pulley 3. The two limit blocks block the pulley 3, so that the pulley 3, namely the component forming surface, can be positioned at the working position.

When the pulley 3 slides to the working position, the service life of the composite wedge structure is prolonged in order to play a role of buffering so as to reduce noise. In this embodiment, as shown in fig. 1, a buffer unit 6 is further fixedly disposed on the lower die holder 2, the buffer unit 6 includes two buffer blocks disposed at intervals and located on the sliding path of the pulley 3, and the two buffer blocks are made of elastic materials, such as rubber and polyurethane.

In addition, when the upper die holder 1 moves relative to the lower die holder 2, the pulley 3 and the wedge slide block 11 are obliquely guided by the guide mechanism. Because the pulley 3 receives the lateral acting force of the wedge slide block 11, the pulley 3 is prevented from deforming under stress. In this embodiment, as shown in fig. 1, a support member 32 extending outward is disposed on the pulley 3, and a support unit 24 is fixedly disposed on the lower die base 2, wherein the support unit 24 can constitute a sliding support for the support member 32. In order not to affect the sliding of the pulley 3 relative to the lower die holder 2, in this embodiment, a lubricating material layer 241 is fixedly disposed on the supporting surface of the supporting unit, which supports the supporting member 32, so as to reduce the friction resistance, and the lubricating material layer may be graphite or other material with a smaller friction coefficient, such as nylon.

In addition, in this embodiment, in order to ensure that the wedge slide 11 can return to the original position when the wedge slide 11 is reset after the completion of the flanging of the component, in this embodiment, as shown in fig. 1 and 3 in combination with fig. 5, a return positioning portion 71 is configured on the slide 3, and a return positioning piece 72 is configured on the wedge slide 11. Specifically, the return positioning portion 71 includes two opposite return limiting hooks fixed on the pulley 3. And the return positioning piece 72 comprises return limiting blocks which are arranged in one-to-one correspondence with the return limiting hooks, and when the slide wedge slide block 11 returns, the return limiting hooks and the return limiting blocks can form blocking fit, so that the slide wedge slide block 11 returns in place.

In conclusion, the composite wedge structure of the embodiment can complete the lateral flanging of the component in one set of die without separately arranging a die for completing the vertical downward flanging of the component, thereby saving the development cost of the die and effectively improving the processing efficiency of the component.

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. The utility model provides a compound slide wedge structure, locates on stamping die to can constitute the turn-ups shaping of component, stamping die includes upper die base (1) and die holder (2), its characterized in that, compound slide wedge structure includes:

the pulley (3) is arranged on the lower die holder (2) in a sliding manner, a fixing component (31) capable of fixing the component is fixedly arranged on the pulley (3), a component forming surface is constructed on the fixing component (31), and the component forming surface has a working position capable of forming flanging of the component and a non-working position capable of forming the component to be separated from the fixing component (31) due to the fact that the component forming surface follows the pulley (3);

the inclined wedge sliding block (11) is arranged on the upper die holder (1) in a sliding manner, a guide mechanism is arranged between the inclined wedge sliding block (11) and the pulley (3), and when the upper die holder (1) moves relative to the lower die holder (2), the inclined wedge sliding block (11) can slide relative to the pulley (3) in a guiding manner under the guidance of the guide mechanism;

and the flanging insert (111) is fixedly arranged on the inclined wedge sliding block (11), an insert forming surface is formed on the flanging insert (111), and the flanging insert (111) can follow the inclined wedge sliding block (11) to enable the insert forming surface to be pressed against the edge of the component so as to match the component forming surface at the working position, so that a vertical flanging of the edge of the component and a lateral flanging towards one side of the inner part of the component body can be sequentially formed.

2. The composite cam structure of claim 1, wherein: the insert forming surface comprises a first forming surface (1111) and a second forming surface (1112) which are sequentially connected from bottom to top, and the second forming surface (1112) is obliquely arranged relative to the first forming surface (1111); the subassembly profile surface includes from top to bottom in proper order meet fourth profile surface (311), fifth profile surface (312), sixth profile surface (313), just fourth profile surface (311) with sixth profile surface (313) respectively with first profile surface (1111) parallel arrangement, fifth profile surface (312) with second profile surface (1112) parallel arrangement.

3. The composite cam structure of claim 2, wherein: the guiding mechanism comprises a first guiding unit (41) constituting the first forming surface (1111) to press against the edge of the member, and a second guiding unit (42) constituting the first forming surface (1111) and the second forming surface (1112) to be matched to the sixth forming surface (313) and the fifth forming surface (312), respectively, to press against the edge of the member.

4. The composite cam structure of claim 3, wherein: the first guiding unit (41) comprises a first guiding block (411) and a second guiding block (412) arranged on the trolley (3) and the wedge slide (11) respectively, and a vertical guiding surface for guiding the first molding surface (1111) to press against the edge of the component is arranged between the first guiding block (411) and the second guiding block (412).

5. The composite cam structure of claim 4, wherein: inclined guide surfaces for guiding the flanging insert (111) to move above the edge of the component are respectively formed on the first guide block (411) and the second guide block (412).

6. The composite cam structure of claim 4, wherein: the second guiding unit (42) comprises a first guiding plate (421) and a second guiding plate (422) arranged on the trolley (3) and the cam slider (11), respectively, and between the first guiding plate (421) and the second guiding plate (422) there is arranged a guiding bevel guiding the first forming surface (1111) and the second forming surface (1112) matching the sixth forming surface (313) and the fifth forming surface (312), respectively, against the edge of the member.

7. The composite cam structure of claim 1, wherein: a support member (32) is fixedly arranged on the pulley (3), a support unit (24) is fixedly arranged on the lower die holder (2), and the support unit (24) can form a sliding support for the support member (32).

8. The composite cam structure of claim 7, wherein: a lubricating material layer (241) is fixedly arranged on a supporting surface of the supporting unit (24) for supporting the supporting piece (32).

9. The composite cam structure of claim 1, wherein: and a positioning unit (5) for positioning the component forming surface at the working position is constructed on the lower die holder (2).

10. The composite wedge structure of any one of claims 1 to 9, wherein: a return positioning part (71) is constructed on the pulley (3), a return positioning part (72) is constructed on the wedge sliding block (11), and the return positioning part (72) and the return positioning part (21) can form blocking fit to form positioning for resetting after the component flanging molding of the wedge sliding block (11).