CN211276168U

CN211276168U - Integrated wiper hook forming progressive die

Info

Publication number: CN211276168U
Application number: CN201921929037.7U
Authority: CN
Inventors: 顾大明
Original assignee: Suzhou Mingfeng Precision Machinery Co ltd
Current assignee: Suzhou Mingfeng Precision Machinery Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-08-18
Anticipated expiration: 2029-11-11

Abstract

The utility model belongs to the technical field of metal stamping processing, and relates to an integral wiper hook forming continuous die, which comprises a first bending die, a second bending die, an empty pressing die and a shaping die which are sequentially arranged along the feeding direction; the first bending die comprises a first lower support block with an undercut forming block, a first upper pressing block positioned above the first lower support block, a lateral deviation punch positioned on one side of the first lower support block and a first slotting tool used for driving the lateral deviation punch to be close to the undercut forming block; the second bending die comprises a second lower support block with a side core pulling block, a second upper pressing block positioned above the first lower support block, a side bending punch positioned on one side of the second lower support block and a second slotting tool used for driving the side bending punch to be close to the side core pulling block. The progressive die can continuously form the perforated structure at the edge of the material sheet into the inward-turned hooks, and the processing efficiency is high.

Description

Integrated wiper hook forming progressive die

Technical Field

The utility model relates to a metal stamping processing technology field, in particular to integral type wiper couple shaping modulus of continuity.

Background

With the continuous development of the stamping technology in China and the continuous increase of the automobile market competition pressure, more and more stamping dies adopt automatic progressive dies to improve the processing efficiency.

The one-piece wiper blade 5' shown in fig. 6 has an elongated structure with a U-shaped recess as a whole, and a hook 51 structure with a hole is integrally formed inside the recessed area. Because the hook 51 design is deformed from a small piece of material that would otherwise be attached to the unitary web, it is easily punched out; if a supporting structure is adopted, the problem of difficult stripping still exists, so a new mold is needed to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an integral type wiper couple shaping modulus of continuity can realize the shaping of incurve couple in continuous production.

The utility model discloses a following technical scheme realizes above-mentioned purpose: an integrated wiper hook forming continuous die comprises a first bending die, a second bending die, a blank pressing die and a shaping die which are sequentially arranged along a feeding direction; the first bending die comprises a first lower support block with an undercut forming block, a first upper pressing block positioned above the first lower support block, a lateral deviation punch positioned on one side of the first lower support block and a first slotting tool used for driving the lateral deviation punch to be close to the undercut forming block; the second bending die comprises a second lower support block with a side core pulling block, a second upper pressing block located above the first lower support block, a side bending punch located on one side of the second lower support block and a second slotting tool used for driving the side bending punch to be close to the side core pulling block, and the side core pulling block can avoid along the direction of the groove of the integrated windscreen wiper sheet.

Specifically, the undercut forming block is connected on a horizontal core-pulling structure, and the horizontal core-pulling structure can enable the undercut forming block to avoid along the direction of the integrated windscreen wiper sheet groove.

Specifically, the cross section of the side core-pulling block is of a hook-shaped structure with a lower part sunken.

Specifically, the air compression mold comprises a third lower support block and a third upper pressing block located above the third lower support block, and the third lower support block is provided with a first upper bending groove and a lower slope located on one side of the first upper bending groove.

Specifically, the sizing die comprises a fourth lower support block and a fourth upper pressing block located above the fourth lower support block, and the fourth lower support block is provided with a second upper bending groove and a leveling surface located on one side of the second upper bending groove.

Adopt above-mentioned technical scheme, the utility model discloses technical scheme's beneficial effect is:

the progressive die can continuously form the perforated structure at the edge of the material sheet into the inward-turned hooks, and the processing efficiency is high.

Drawings

FIG. 1 is a schematic view of an embodiment of a progressive die for forming an integrated wiper hook;

FIG. 2 is a schematic structural view of the first bending die when the die is closed;

FIG. 3 is a schematic structural view of the second bending die when the die is closed;

FIG. 4 is a schematic structural view of an empty mold during mold closing;

FIG. 5 is a schematic view of the sizing die when closed;

fig. 6 is a perspective view of the integrated wiper blade.

The figures in the drawings represent:

11-a first upper pressing block, 12-a first lower supporting block, 121-an undercut forming block, 13-a laterally deviated punch and 14-a first slotting tool;

21-a second upper pressing block, 22-a second lower supporting block, 221-a side core-pulling block, 23-a side bending punch and 24-a second slotting tool;

31-a third upper pressing block, 32-a third lower supporting block, 321-a first upper bending groove and 322-a lower slope surface;

41-fourth upper pressing block, 42-fourth lower supporting block, 421-second upper bending groove and 422-whole plane.

5-material piece, 5' -integrated windscreen wiper, 51-hook.

Detailed Description

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

As shown in fig. 1 to 3, the utility model discloses an integral wiper hook forming continuous die, which comprises a first bending die, a second bending die, a blank pressing die and a shaping die which are arranged in sequence along a feeding direction; the first bending die comprises a first lower supporting block 12 with an undercut forming block 121, a first upper pressing block 11 positioned above the first lower supporting block 12, a lateral deviation punch 13 positioned at one side of the first lower supporting block 12 and a first slotting tool 14 used for driving the lateral deviation punch 13 to be close to the undercut forming block 121; the second bending die comprises a second lower support block 22 with a side core pulling block 221, a second upper pressing block 21 located above the first lower support block 22, a side bending punch 23 located on one side of the second lower support block 22 and a second slotting tool 24 used for driving the side bending punch 23 to be close to the side core pulling block 221, and the side core pulling block 221 can retreat along the direction of the groove of the integrated wiper blade 5. The first bending die is used to form the perforated plane of the hanger 51. In the specific process, the first lower support block 12 and the first upper pressing block 11 clamp the main body of the material sheet 5, the first slotting tool 14 drives the side deviation punch 13 to laterally strike the perforated protruding part which is formed into an upright structure, then the perforated protruding part is extruded by the undercut forming block 121, a perforated plane with a certain horizontal deviation amount is formed, and a slightly bent transition part is arranged between the perforated plane and the main body of the material sheet 5. The second bending die is used to provide a greater angle of the transition portion, typically about 45 degrees offset from the plane of the aperture. The concrete method is that the side core-pulling block 221 is supported on the concave part of the material sheet 5 main body, then the side bending punch 23 bends and deforms the transition part, the side bending punch 23 does not touch the plane with the holes, then the side core-pulling block 221 is separated from the area of the hook 51 along the groove direction of the material belt 5, and at this time, the material can be taken off and the next station can be reached. The air compression die is used for completing the bending of the plane with the holes at an angle of nearly 90 degrees, and the shaping die is used for flapping the plane with the holes to form a target structure, and the part can be obtained by a conventional stamping means. The progressive die can continuously form the perforated structure at the edge of the material sheet into the inward-turned hooks, and the processing efficiency is high.

As shown in fig. 2, the undercut-forming block 121 is connected to a horizontal core-pulling structure (not shown), which allows the undercut-forming block 121 to escape along the direction of the recess of the integral wiper blade 5. Under the condition that the offset distance is large, the undercut forming block 121 also adopts an offset core pulling mode to avoid that an offset punch head blocks stripping, and unnecessary indentation of a product structure is avoided.

As shown in fig. 3, the cross-section of the side core block 221 has a hook-shaped configuration with an undercut. The hook-shaped side core pieces 221 prevent the inner side from contacting the plane of the perforation to prevent unwanted deformation of the plane of the perforation.

As shown in fig. 4, the air compression mold includes a third lower holder block 32 and a third upper pressing block 31 located above the third lower holder block 32, and the third lower holder block 32 has a first upper bending groove 321 and a lower slope 322 located at one side of the first upper bending groove 321. When the die is closed, the first upper bending groove 321 is used for adjusting the included angle of the transition part, and the lower slope 322 avoids the plane of the hole, so that the plane of the hole is prevented from being deformed unnecessarily.

As shown in fig. 5, the sizing die includes a fourth lower holding block 42 and a fourth upper pressing block 41 located above the fourth lower holding block 42, and the fourth lower holding block 42 has a second upper bending groove 421 and a leveling surface 422 located at one side of the second upper bending groove 421. When the die is closed, the second upper bending groove 421 is used to adjust the included angle of the transition portion, and the plane 422 is used to determine the lowest position of the plane with the hole.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides an integral type wiper couple shaping modulus of continuity which characterized in that: the bending device comprises a first bending die, a second bending die, a blank pressing die and a shaping die which are sequentially arranged along the feeding direction; the first bending die comprises a first lower support block with an undercut forming block, a first upper pressing block positioned above the first lower support block, a lateral deviation punch positioned on one side of the first lower support block and a first slotting tool used for driving the lateral deviation punch to be close to the undercut forming block; the second bending die comprises a second lower support block with a side core pulling block, a second upper pressing block located above the first lower support block, a side bending punch located on one side of the second lower support block and a second slotting tool used for driving the side bending punch to be close to the side core pulling block, and the side core pulling block can avoid along the direction of the groove of the integrated windscreen wiper sheet.

2. The forming progressive die for integrated wiper blade hooks of claim 1, wherein: the undercut forming block is connected on a horizontal core-pulling structure, and the horizontal core-pulling structure can enable the undercut forming block to avoid along the direction of the integrated windscreen wiper tablet groove.

3. The forming progressive die for integrated wiper blade hooks of claim 1, wherein: the cross section of the side core-pulling block is of a hook-shaped structure with a lower part sunken.

4. The forming progressive die for integrated wiper blade hooks of claim 1, wherein: the air compression mold comprises a third lower support block and a third upper pressing block located above the third lower support block, and the third lower support block is provided with a first upper bending groove and a lower slope located on one side of the first upper bending groove.

5. The forming progressive die for integrated wiper blade hooks of claim 1, wherein: the shaping die comprises a fourth lower support block and a fourth upper pressing block located above the fourth lower support block, and the fourth lower support block is provided with a second upper bending groove and a leveling surface located on one side of the second upper bending groove.