CN212469457U - Waste material formula is towards turning over drift with protection boss - Google Patents
Waste material formula is towards turning over drift with protection boss Download PDFInfo
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- CN212469457U CN212469457U CN202020680463.8U CN202020680463U CN212469457U CN 212469457 U CN212469457 U CN 212469457U CN 202020680463 U CN202020680463 U CN 202020680463U CN 212469457 U CN212469457 U CN 212469457U
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Abstract
The utility model discloses a waste material formula is towards drift of turning over with protection boss, including the drift body, the drift body is current drift structure, and the first section broken end of drift body is equipped with the protection boss before towards the end, forms boss protection section, avoids drift blade part to contact panel earlier and produces the striking, delays blade contact panel and forms the buffer protection to avoid producing the risk that the blade collapses the loss because of striking with panel. The protection boss is a conical rotary boss, and the end face of the working end (front end) of the protection boss is of a plane structure.
Description
Technical Field
The utility model belongs to the technical field of the panel beating punching press, concretely relates to waste material formula is towards turning over drift with protection boss is often used for among the stamping die of automobile industry.
Background
The work part of the existing hole-flanging bottom-breaking type punching and overturning punch comprises 2 sections of cylinders with different diameters: the first section is a bottom hole punch head with a cutting edge for breaking the bottom, and the first section is used for pre-forming and breaking the pre-formed bottom when the material bearing limit is reached; the second section is a hole flanging working part, namely hole flanging is realized along with stroke after bottom breaking. The hole-flanging bottom-breaking type punching and overturning punch realizes the completion of punching and overturning in one process. The hole flanging bottom breaking type punching and overturning punch has the structural defects that: the end face of the cutting edge of the punch directly collides with a plate, and especially when the caliber of a hole flanging is small or the plate is hard, the cutting edge is easily damaged and fails too early, and the service life is shortened.
Disclosure of Invention
The utility model aims at providing a drift is dashed and turned over to waste material formula with protection boss avoids the drift blade end face direct and panel contact to form the striking, eliminates the drift risk of becoming invalid that leads to from this, prolongs the drift life-span, reduces the change number of times of bringing because of the drift inefficacy, guarantees the stability of production.
The utility model aims at realizing through the following technical scheme:
the utility model provides a waste material formula is towards turning over drift with protection boss, includes the drift body, is equipped with the protection boss before the drift body first section broken end towards the end face.
Preferably, the protection boss is a conical rotary boss, and the end face of the working end of the protection boss is of a plane structure.
Preferably, the protection boss is an arc-shaped stepped rotary boss, and the vertex of the working end of the protection boss is an arc vertex.
Preferably, the protection boss is an arc-shaped rotary boss, the end face of the working end of the protection boss is an arc surface, and the vertex of the working end is an arc vertex.
Preferably, the protection boss and the first section broken bottom punch head end of the punch body are provided with an axial hole, and an ejector rod and an elastomer are added into the axial hole.
The utility model discloses a have a bit in: increase the protection boss through the first section at present drift structure and break preceding towards the end face at the end, form boss protection section, avoid drift blade part to contact panel earlier and produce the striking, postpone blade contact panel and form buffer protection to avoid producing the risk that the blade collapses the loss because of striking with panel.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a preferred structure of the conical boss of the present invention;
FIG. 3 is a schematic view of an alternative structure of the conical boss of the present invention;
FIG. 4 is a schematic view of another alternative structure of the conical boss of the present invention;
fig. 5 is a schematic view of the working principle of the present invention.
Detailed Description
The technical scheme of the utility model is further described below with the attached drawings:
as shown in fig. 1, a drift is turned over to waste material formula with protection platform, including drift body 1, the drift body is current drift structure, and the drift body is equipped with protection boss 2 before the first section broken end towards the head end, forms boss protection section, avoids drift blade part to contact panel earlier and produces the striking, delays blade contact panel and forms buffer protection to avoid producing the risk that the blade collapses the loss because of striking with panel.
The protection boss and the punch body are of an integrated structure.
The protection boss and the punch body are of a split structure, and the conical boss is embedded in front of the end face of the first section broken bottom punch of the punch body.
If the radial specification of the hole flanging is large enough, a hole is axially drilled at the end of the protective boss and the first section bottom breaking punch of the punch body, and an ejector rod and an elastomer are added to play a role in ejecting waste materials.
As shown in fig. 2, the protection boss is a cone-shaped convolution boss, and the end face of the working end (front end) of the protection boss is of a plane structure.
As shown in fig. 3, the protection boss is an arc-shaped stepped rotary boss, and the vertex of the working end of the protection boss is an arc vertex.
As shown in fig. 4, the protection boss is an arc-shaped rotary boss, the end face of the working end of the protection boss is an arc surface, and the vertex of the working end is an arc vertex.
As shown in fig. 2 to 4, the minimum width e of the cutting edge between the protection boss and the end face of the first bottom-breaking punch of the punch body is more than or equal to 0.5, and the thickness h of the conical rotary boss is more than or equal to 0.3; the cutting off state angle alpha of the conical rotary lug boss is less than 30 degrees.
As shown in fig. 4, the working principle of the present invention is:
firstly, the end face of the protection boss of the punch contacts with the plate firstly along with the downward movement of the upper die, so that the impact between the end face of the cutting edge without the protection structure and the plate is avoided. As schematically illustrated in fig. 1.
Secondly, the plate is preformed into a pit shape along with the downward movement of the punch until the cutting edge contacts the surface of the plate, and the impact with the cutting edge is greatly relieved due to the fact that the plate corresponding to the position of the cutting edge is in deformation and inclined in posture.
Thirdly, the material at the position of the corresponding cutting edge of the forming concave pit reaches the load limit and breaks to break the bottom along with the continuous descending of the punch, and then the flanging process is completed through the action of the flanging working part of the punch and the female die.
Claims (5)
1. The utility model provides a waste material formula is towards turning over drift with protection boss which characterized in that, includes the drift body, is equipped with the protection boss before the drift body first section broken end towards the head face.
2. The scrap punch with the protective ledge of claim 1 wherein the protective ledge is a tapered convoluted ledge having a planar configuration at the working end face.
3. The scrap form piercing punch with protective ledge of claim 1 wherein said protective ledge is an arcuate stepped convoluted ledge with the apex of the working end being the apex of the arc.
4. The scrap type piercing punch with the protective boss as claimed in claim 1, wherein the protective boss is an arc-shaped rotary boss, the end face of the working end of the protective boss is an arc surface, and the vertex of the working end is an arc vertex.
5. The scrap type piercing punch with the protective boss as claimed in claim 1, wherein the protective boss and the punch head of the first segment bottom of the punch body are provided with an axial hole, and a top rod and an elastic body are added into the axial hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680463.8U CN212469457U (en) | 2020-04-29 | 2020-04-29 | Waste material formula is towards turning over drift with protection boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020680463.8U CN212469457U (en) | 2020-04-29 | 2020-04-29 | Waste material formula is towards turning over drift with protection boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212469457U true CN212469457U (en) | 2021-02-05 |
Family
ID=74453824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020680463.8U Active CN212469457U (en) | 2020-04-29 | 2020-04-29 | Waste material formula is towards turning over drift with protection boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212469457U (en) |
-
2020
- 2020-04-29 CN CN202020680463.8U patent/CN212469457U/en active Active
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