CN212884332U

CN212884332U - Stamping flanging mechanism

Info

Publication number: CN212884332U
Application number: CN202021678199.0U
Authority: CN
Inventors: 胡云和
Original assignee: Chongqing Qiangdi Machinery Co ltd
Current assignee: Chongqing Qiangdi Machinery Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-04-06
Anticipated expiration: 2030-08-12

Abstract

The utility model relates to the technical field of stamping part processing, in particular to a stamping flanging mechanism, which comprises a workbench, a lower die, a flanging die and a pressing mechanism; one end of the lower die extends out of the workbench to form a flanging part; the pressing plate is arranged above the lower die, the supporting plates are arranged above the pressing plate, each connecting column movably penetrates through the supporting plates, a first elastic piece is sleeved on each connecting column in a penetrating mode, and two ends of each first elastic piece are respectively connected with the pressing plate and the supporting plates; the connecting column is provided with a limiting part which is used for limiting the supporting plate to be separated from the connecting column; the flanging die is connected to the supporting plate, and the projection of the flanging die in the vertical direction is positioned outside the projection of the flanging part in the vertical direction. This punching press turn-ups mechanism is through designing into linkage structure with turn-ups mould and hold-down mechanism, and the clamp plate compresses tightly fixedly at first treating turn-ups panel on the lower mould, avoids panel to take place the skew in stamping process, then under the cooperation of turn-ups portion and turn-ups mould, accomplishes the turn-ups shaping, and the shaping is effectual and stable.

Description

Stamping flanging mechanism

Technical Field

The utility model relates to a stamping workpiece processing technology field, concretely relates to punching press turn-ups mechanism.

Background

The die stamping of the automobile body covering part is a front-end process for the production of automobile body parts, the processing precision of the die stamping has important influence on the quality of the whole automobile assembly, and the high-quality punch forming covering part is a necessary condition for ensuring the smooth and smooth shape of the whole automobile and the consistency of products.

Most automobile body covering parts need to be subjected to a flanging forming process, flanging refers to a forming method of forming a straight wall or a flange with a certain angle along a closed or unclosed curve edge on a plane part or a curved part of a blank by using the action of a die, flanging is one of stamping processes, the types of flanging are various, and the classification method is different. The stamping flanging equipment in the prior art is large in occupied area and is not suitable for flanging process treatment of small-size plates.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide a punching press turn-ups mechanism.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a stamping flanging mechanism comprises a workbench, a lower die, a flanging die and a pressing mechanism; the lower die and the pressing mechanism are both arranged on the workbench, and one end of the lower die extends out of the workbench and then is bent downwards to form a flanging part; the pressing mechanism comprises a pressing plate, a supporting plate and a plurality of connecting columns, the pressing plate is arranged above the lower die, and the connecting columns are arranged on one side of the pressing plate, which is far away from the lower die; the supporting plates are arranged above the pressing plate, each connecting column movably penetrates through the supporting plates, a first elastic piece is sleeved on each connecting column in a penetrating mode and located between the supporting plate and the pressing plate, and two ends of each first elastic piece are respectively connected with the pressing plate and the supporting plate; the connecting column is provided with a limiting part which is used for limiting the supporting plate to be separated from the connecting column; the flanging die is connected to the supporting plate, a strip-shaped hole is formed in the supporting plate, the flanging die is movably matched in the strip-shaped hole, and the projection of the flanging die in the vertical direction is positioned outside the projection of the flanging part in the vertical direction; when the pressing plate is suspended, the bottom end of the flanging die is positioned in the strip-shaped hole.

Preferably, be equipped with a plurality of through-holes that supply the spliced pole to run through in the backup pad, the locating part is an annular boss of establishing on spliced pole circumference outer wall, annular boss is located the top of backup pad, and the size of annular boss is greater than the size of through-hole.

Preferably, a plurality of second elastic pieces are further arranged between the supporting plate and the pressing plate, the second elastic pieces are arranged in an area between the flanging die and the connecting column, and two ends of each second elastic piece are respectively connected with the supporting plate and the pressing plate.

Preferably, a placing groove is concavely formed on the upper surface of the lower die, and a placing surface is formed on the bottom of the placing groove; a front guide surface is formed on one surface of the flanging part, which is far away from the workbench, and the placing surface is vertical to and connected with the front guide surface; the lower surface of clamp plate is formed with the pressure face parallel with the face of placing, and the flanging dies is formed with the face of flattening parallel with leading the face towards the one side of spliced pole, the bottom of flanging dies be formed with the leading-in face parallel of face of flattening.

Preferably, a partial projection of the pressure plate in the vertical direction falls within the placement groove.

Preferably, a support is arranged on the workbench, a hydraulic cylinder is arranged on the support, and a piston rod of the hydraulic cylinder is connected with the support plate.

Preferably, the device further comprises a plurality of clamping mechanisms which are arranged at intervals along the edge of the lower die away from the flanging part; the clamping mechanism comprises a fixed seat, a screw and a pressing block, the fixed seat is arranged on the workbench, and the fixed seat is in an inverted L shape; the screw rod vertically runs through the top of the fixing seat, the screw rod is in threaded fit with the top of the fixing seat, the pressing block is fixed to the bottom of the screw rod, and the projection of the pressing block in the vertical direction falls into the placing groove.

The utility model has the advantages that:

the utility model discloses a punching press turn-ups mechanism, it designs into linkage structure with flanging dies and hold-down mechanism, when the backup pad moves down, can drive flanging dies, spliced pole and clamp plate simultaneously and move down, because the bottom of flanging dies is located the bar downthehole, does not have the protrusion in the lower surface of clamp plate, consequently, after the clamp plate presses the panel on the lower mould, under the effect of first elastic component, the clamp plate lasts and compresses tightly panel, the backup pad continues to move down, the flanging dies can run through the bar hole, then supports on panel. The downward movement of the flanging die can apply pressure to the part of the plate extending out of the lower die, and because a gap with the thickness of the plate is reserved between the flanging die and the flanging part of the lower die, the part of the plate is bent and deformed at the joint of the lower die and the flanging part under the mutual matching of the flanging part and the flanging die, and finally the flanging is formed.

This punching press turn-ups mechanism is through designing into linkage structure with turn-ups mould and hold-down mechanism, and the clamp plate compresses tightly fixedly at first treating turn-ups panel on the lower mould, avoids panel to take place the skew in stamping process, then under the cooperation of turn-ups portion and turn-ups mould, accomplishes the turn-ups shaping, and simple structure is fit for the turn-ups shaping of some small-size panels, and the shaping is effectual and stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a stamping flanging mechanism of the present invention;

FIG. 2 is a schematic illustration of pre-positioning a sheet material;

FIG. 3 is a view showing the pressing plate just pressed against the plate material;

FIG. 4 is a state view of the flange forming;

fig. 5 is a partial enlarged view of a portion a in fig. 4.

Reference numerals:

1-workbench, 2-lower die, 21-flanging part, 22-placing groove, 23-placing surface, 24-guide front surface, 3-flanging die, 31-pressing plane, 32-guide surface, 4-pressing mechanism, 41-pressing plate, 411-pressing surface, 42-supporting plate, 421-strip-shaped hole, 43-connecting column, 44-first elastic piece, 45-limiting piece, 46-second elastic piece, 5-bracket, 6-hydraulic cylinder, 7-clamping mechanism, 71-fixing seat, 72-screw rod and 73-pressing block.

Detailed Description

The present invention will be described in further detail with reference to examples.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the stamping flanging mechanism of the present invention comprises a worktable 1, a lower die 2, a flanging die 3 and a pressing mechanism 4; the lower die 2 and the pressing mechanism 4 are both arranged on the workbench 1, and one end of the lower die 2 extends out of the workbench 1 and then is bent downwards to form a flanging part 21; the pressing mechanism 4 comprises a pressing plate 41, a supporting plate 42 and a plurality of connecting columns 43, wherein the pressing plate 41 is arranged above the lower die 2, and the plurality of connecting columns 43 are arranged side by side on one side of the pressing plate 41, which is far away from the lower die 2; the supporting plate 42 is arranged above the pressing plate 41, each connecting column 43 movably penetrates through the supporting plate 42, a first elastic piece 44 is sleeved on each connecting column 43 in a penetrating manner, the first elastic piece 44 is positioned between the supporting plate 42 and the pressing plate 41, and two ends of each first elastic piece 44 are respectively connected with the pressing plate 41 and the supporting plate 42; a limiting piece 45 is arranged on the connecting column 43, and the limiting piece 45 is used for limiting the supporting plate 42 to be separated from the connecting column 43; the flanging die 3 is connected to the supporting plate 42, the supporting plate 42 is provided with a strip-shaped hole 421, the flanging die 3 is movably matched in the strip-shaped hole 421, and the projection of the flanging die 3 in the vertical direction is positioned outside the projection of the flanging part 21 in the vertical direction; when the pressing plate 41 is suspended, the bottom end of the flanging die 3 is positioned in the strip-shaped hole 421.

The utility model discloses a punching press turn-ups mechanism, it designs into linkage structure with flanging dies 3 and hold-down mechanism 4, when backup pad 42 moves down, can drive flanging dies 3 simultaneously, spliced pole 43 and clamp plate 41 move down, because flanging dies 3's bottom is located bar hole 421, do not protrude in clamp plate 41's lower surface, therefore, after clamp plate 41 presses the panel on lower mould 2, under first elastic component 44 effect, clamp plate 41 continuously compresses tightly panel, backup pad 42 continues to move down, flanging dies 3 can run through bar hole 421, then support on panel. The downward movement of the flanging die 3 can apply pressure to the part of the plate extending out of the lower die 2, and because a gap with the thickness of the plate is reserved between the flanging die 3 and the flanging part 21 of the lower die 2, under the mutual matching of the flanging part 21 and the flanging die 3, the part of the plate is bent and deformed at the joint of the lower die 2 and the flanging part 21, and finally the flanging is formed.

This punching press turn-ups mechanism is through designing into linkage structure with turn-ups mould 3 and hold-down mechanism 4 mechanism, and clamp plate 41 compresses tightly fixedly at first treating turn-ups panel on lower mould 2, avoids panel to take place the skew in stamping process, then under turn-ups portion 21 and turn-ups mould 3's cooperation, accomplishes the turn-ups shaping, simple structure, and the shaping is effectual and stable.

In one embodiment, the supporting plate 42 has a plurality of through holes for the connecting posts 43 to pass through, and the limiting member 45 is an annular boss disposed on the outer circumferential wall of the connecting posts 43, the annular boss is located above the supporting plate 42, and the size of the annular boss is larger than that of the through holes. After the pressing plate 41 is pressed against the plate material on the lower die 2, the pressing plate 41 is continuously pressed against the plate material by the elastic force of the first elastic member 44. Because the size of annular boss is greater than the size of through-hole, when the backup pad 42 rises, the last face of backup pad 42 supports and leans on annular boss back, and backup pad 42 and first elastic component 44 can lift clamp plate 41 through spliced pole 43 and draw and rise, and the device breaks away from panel.

Further, in order to further enhance the pressing force of the pressing plate 41 on the plate, a plurality of second elastic members 46 are further provided between the supporting plate 42 and the pressing plate 41, the plurality of second elastic members 46 are arranged in the area between the flanging die 3 and the connecting column 43, and both ends of the second elastic members 46 are respectively connected with the supporting plate 42 and the pressing plate 41. Wherein, the first elastic element 44 and the second elastic element 46 both adopt compression springs.

Referring to fig. 4 and 5, in a specific embodiment, a placing groove 22 is concavely formed on the upper surface of the lower die 2, and a placing surface 23 is formed on the bottom of the placing groove 22; a front guide surface 24 is formed on one surface of the flanging part 21 departing from the workbench 1, and the placing surface 23 is vertical to and connected with the front guide surface 24; the lower surface of the platen 41 is formed with a pressing surface 411 parallel to the mounting surface 23, the side of the flanging die 3 facing the connecting column 43 is formed with a flattening surface 31 parallel to the guide surface 24, and the bottom of the flanging die 3 is formed with a guide surface 32 parallel to the flattening surface 31.

By designing the placing groove 22 on the upper surface of the lower die 2, the placing groove 22 can be pre-positioned to the plate material after the plate material is placed in the placing groove 22. When the flanging die 3 moves downwards, the guiding surface 32 firstly applies pressure to the part of the plate extending out of the lower die 2, and because a gap with the thickness of the plate is reserved between the flattening surface 31 of the flanging die 3 and the guiding surface 24 of the flanging part 21, under the mutual matching of the guiding surface 24 and the flattening surface 31, the part of the plate is bent and deformed at the joint of the lower die 2 and the flanging part 21, and finally the flanging is formed.

In a specific embodiment, in order to enable the pressing plate 41 to press the plate material in the placing groove 22, a part of the pressing plate 41 in the vertical direction is projected to fall in the placing groove 22.

In a specific embodiment, in order to provide power for the lifting or downward movement provided by the pressing mechanism 4 and the flanging die 3, a support 5 is provided on the worktable 1, a hydraulic cylinder 6 is provided on the support 5, and a piston rod of the hydraulic cylinder 6 is connected with a support plate 42.

In addition, the device also comprises a plurality of clamping mechanisms 7, wherein the plurality of clamping mechanisms 7 are arranged at intervals along the edge of the lower die 2 away from the flanging part 21; the clamping mechanism 7 comprises a fixed seat 71, a screw 72 and a pressing block 73, the fixed seat 71 is arranged on the workbench 1, and the fixed seat 71 is in an inverted L shape; the screw 72 vertically penetrates through the top of the fixed seat 71, the screw 72 is in threaded fit with the top of the fixed seat 71, the pressing block 73 is fixed at the bottom of the screw 72, and the projection of the pressing block 73 in the vertical direction falls in the placing groove 22. The screw 72 is rotated to drive the pressing block 73 to ascend or descend, so that the pressing block 73 can be pressed on the plate in the placing groove 22, and when flanging operation is not performed, the plate in the placing groove 22 can be fixed.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a punching press turn-ups mechanism which characterized in that: comprises a workbench, a lower die, a flanging die and a pressing mechanism;

the lower die and the pressing mechanism are both arranged on the workbench, and one end of the lower die extends out of the workbench and then is bent downwards to form a flanging part; the pressing mechanism comprises a pressing plate, a supporting plate and a plurality of connecting columns, the pressing plate is arranged above the lower die, and the connecting columns are arranged on one side of the pressing plate, which is far away from the lower die;

the supporting plates are arranged above the pressing plate, each connecting column movably penetrates through the supporting plates, a first elastic piece is sleeved on each connecting column in a penetrating mode and located between the supporting plate and the pressing plate, and two ends of each first elastic piece are respectively connected with the pressing plate and the supporting plate; the connecting column is provided with a limiting part which is used for limiting the supporting plate to be separated from the connecting column;

the flanging die is connected to the supporting plate, a strip-shaped hole is formed in the supporting plate, the flanging die is movably matched in the strip-shaped hole, and the projection of the flanging die in the vertical direction is positioned outside the projection of the flanging part in the vertical direction; when the pressing plate is suspended, the bottom end of the flanging die is positioned in the strip-shaped hole.

2. The stamping flanging mechanism of claim 1, wherein: the supporting plate is provided with a plurality of through holes for the connecting column to penetrate through, the limiting part is an annular boss arranged on the outer wall of the connecting column in the circumferential direction, the annular boss is located above the supporting plate, and the size of the annular boss is larger than that of the through holes.

3. The stamping flanging mechanism of claim 2, wherein: a plurality of second elastic pieces are further arranged between the supporting plate and the pressing plate, the second elastic pieces are arranged in the area between the flanging die and the connecting column, and two ends of each second elastic piece are respectively connected with the supporting plate and the pressing plate.

4. The stamping flanging mechanism of claim 1, wherein: a placing groove is formed on the upper surface of the lower die in a concave mode, and a placing surface is formed at the bottom of the placing groove; a front guide surface is formed on one surface of the flanging part, which is far away from the workbench, and the placing surface is vertical to and connected with the front guide surface;

the lower surface of clamp plate is formed with the pressure face parallel with the face of placing, and the flanging dies is formed with the face of flattening parallel with leading the face towards the one side of spliced pole, the bottom of flanging dies be formed with the leading-in face parallel of face of flattening.

5. The stamping flanging mechanism of claim 1, wherein: the partial projection of the pressure plate in the vertical direction falls in the placing groove.

6. The stamping flanging mechanism of claim 1, wherein: the support is arranged on the workbench, the hydraulic cylinder is arranged on the support, and a piston rod of the hydraulic cylinder is connected with the support plate.

7. The stamping flanging mechanism of claim 4, wherein: the clamping mechanism is arranged along the edge of the lower die far away from the flanging part at intervals;

the clamping mechanism comprises a fixed seat, a screw and a pressing block, the fixed seat is arranged on the workbench, and the fixed seat is in an inverted L shape; the screw rod vertically runs through the top of the fixing seat, the screw rod is in threaded fit with the top of the fixing seat, the pressing block is fixed to the bottom of the screw rod, and the projection of the pressing block in the vertical direction falls into the placing groove.