CN210907718U - Hole flanging and waste ejection mechanism punches a hole - Google Patents
Hole flanging and waste ejection mechanism punches a hole Download PDFInfo
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- CN210907718U CN210907718U CN201921932571.3U CN201921932571U CN210907718U CN 210907718 U CN210907718 U CN 210907718U CN 201921932571 U CN201921932571 U CN 201921932571U CN 210907718 U CN210907718 U CN 210907718U
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Abstract
The utility model discloses a punching hole flanging and waste material ejection mechanism, which comprises a punching hole flanging male die, a pressure plate, a hole flanging female die, a floating ejector core, an ejector core return spring, a lower die holder and a pressure plate, the hole flanging female die and the lower die holder are sequentially arranged from top to bottom, the middle parts of the pressure plate, the hole flanging female die and the lower die holder are respectively provided with an upper through hole, a middle through hole and a lower through hole, one section of a floating ejection core is installed in the middle through hole, the other section of the floating ejection core is installed in the lower through hole, the outer diameter of the floating ejection core is matched with the outer diameter of a hole flanging of a product, an ejection core return spring is installed outside the floating ejection core and below a bulge, the floating ejection core is internally provided with a floating through hole, the floating through hole adopts a secondary step hole with a small top and a large bottom, a punching section and a hole flanging section are sequentially arranged on a punching male die from bottom to top, the diameter of the punching section is matched with the diameter of the upper end. The structure is provided with the floating top core, so that the problem that waste materials are generated in one-time punching hole flanging can be solved, and the hole flanging quality of products is further improved.
Description
Technical Field
The utility model belongs to the stamping process field, concretely relates to hole flanging and waste material ejection mechanism punch a hole.
Background
Hole flanging, i.e. for flanging the hole edge to an upright edge, is different from punching, which is a stamping process for separating waste material from a material or process piece along a closed contour, obtaining the desired hole in the material or process piece, and hole flanging, i.e. a stamping process for flanging the material to a side flange along the inner hole periphery. In the prior art, hole flanging is generally achieved by two processes, namely pre-punching and hole flanging.
At present, two methods are commonly adopted for domestic hole flanging: firstly, piercing a workpiece and then flanging a hole; and secondly, directly punching and flanging by using a male die. Both methods have defects that the former can not ensure the height and quality of hole flanging, and the latter is easy to bring wastes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the simulation is from solving the problem of taking the waste material behind the hole flanging that punches a hole, further improves product hole flanging quality simultaneously.
Therefore, the utility model discloses the technical scheme who adopts does: a punching hole flanging and waste ejection mechanism, which comprises a punching hole flanging male die, a pressure plate, a hole flanging female die, a floating ejector core, an ejector core return spring and a lower die seat, the pressure plate, the hole flanging female die and the lower die holder are sequentially arranged from top to bottom, an upper through hole is arranged in the middle of the pressure plate, a middle through hole is arranged in the middle of the hole flanging female die, a lower through hole is arranged in the middle of the lower die holder, one section of the floating ejection core is arranged in the middle through hole, the other section of the floating ejection core is arranged in the lower through hole, the outer diameter of the floating ejection core is matched with the outer diameter of the hole flanging of the product, the ejection core return spring is arranged outside the floating ejection core and below the bulge, a floating through hole is arranged in the floating ejection core, and the floating through hole is a two, the punching and flanging male die is sequentially provided with a punching section and a flanging section from bottom to top, the diameter of the punching section is matched with the diameter of the upper end of the floating through hole, and the diameter of the flanging section is equal to the flanging inner diameter of a product.
Preferably, the middle through hole is a secondary stepped hole with a small upper part and a large lower part, the upper through hole and the lower through hole are secondary stepped holes with a large upper part and a small lower part, the inner diameter of the upper end of the middle through hole is equal to the inner diameter of the lower end of the lower through hole, the inner diameter of the lower end of the middle through hole is equal to the inner diameter of the upper end of the lower through hole, a circle of bulge used for installing a top core return spring is arranged outside the floating top core, the outer diameter of the bulge is matched with the inner diameter of the lower end of the middle through hole, and. The inner diameters of the middle through hole and the lower through hole are set to facilitate the processing and installation of the floating top core; the upper through hole is used for pressing in the punching hole flanging male die for urination and defecation; the outer diameter of the core return spring is set to increase the restoring force.
Further preferably, the punching section and the hole flanging section are provided with chamfers. The chamfer angle is formed on the hole flanging edge conveniently.
The working process of the mechanism is as follows: the punching hole flanging male die is pressed downwards, the part is punched out by the punching section firstly, the pre-punched hole is punched, the waste material is pressed into the floating top core downwards continuously, then the punching hole flanging male die is pressed downwards continuously, the hole of the part is flanged by the flanging section, meanwhile, the floating top core is pressed downwards continuously, the top core return spring is compressed, finally, the punching hole flanging male die returns, the floating top core returns under the action of the top core return spring, the punching hole flanging male die is ejected out, and meanwhile, the waste material falls down along the floating through hole.
The utility model has the advantages that: the structure is provided with the floating top core, so that the problem of waste in one-time punching hole flanging can be solved, and the hole flanging quality of a product is improved; the hole punching and flanging are completed at one time, and the hole flanging height can be controlled by changing the diameter of the hole punching section.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a hole flanging diagram of the product of the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in figures 1-2, the punching hole flanging and waste ejection mechanism mainly comprises a punching hole flanging male die 1, a pressure plate 2, a hole flanging female die 3, a floating ejecting core 4, an ejecting core return spring 5 and a lower die holder 6, wherein the pressure plate 2, the hole flanging female die 3 and the lower die holder 6 are sequentially arranged from top to bottom, an upper through hole 2a is formed in the middle of the pressure plate 2, a middle through hole 3a is formed in the middle of the hole flanging female die 3, a lower through hole 6a is formed in the middle of the lower die holder 6, one section of the floating ejecting core 4 is arranged in the middle through hole 3a, the other section of the floating ejecting core 4 is arranged in the lower through hole 6a, the outer diameter of the floating ejecting core 4 is matched with the outer diameter of a product flanging hole, the ejecting core return spring 5 is arranged outside the floating ejecting core 4 and below a bulge 4a, a floating through hole is arranged in the floating ejecting core, the floating through hole adopts a secondary step hole with a small top and a large bottom, The diameter of the hole flanging section 1b is matched with that of the upper end of the floating through hole 4b, and the diameter of the hole flanging section 1b is equal to the inner diameter of a hole flanging of a product.
Preferably, the middle through hole 3a is a secondary stepped hole with a small top and a large bottom, the upper through hole 2a and the lower through hole 6a are secondary stepped holes with a large top and a small bottom, the inner diameter of the upper end of the middle through hole 3a is equal to the inner diameter of the lower end of the lower through hole 6a, the inner diameter of the lower end of the middle through hole 3a is equal to the inner diameter of the upper end of the lower through hole 6a, a circle of protrusions 4a used for installing the top core return spring 5 are arranged outside the floating top core 4, the outer diameter of the protrusions 4a is matched with the inner diameter of the lower end of the middle through hole 3a, and the outer diameter. The inner diameters of the middle through hole 3a and the lower through hole 6a are set to facilitate the processing and installation of the floating top core 4; the upper through hole 2a is used for pressing in the punching hole flanging male die 1 when the urine flows upwards and downwards; the outer diameter of the core return spring 5 is set to increase the restoring force.
Preferably, the punching section 1a and the burring section 1b are provided with chamfers. The chamfer angle is formed on the hole flanging edge conveniently.
The working process of the mechanism is as follows: the punching hole flanging male die 1 is pressed downwards, firstly, the punching section 1a punches a pre-punched hole of the part 7 and continuously presses the waste material downwards into the floating top core 4, then, the punching hole flanging male die 1 is continuously pressed downwards, the hole flanging section 1b overturns the hole of the part 7, meanwhile, the floating top core 4 is continuously pressed downwards, at the moment, the top core return spring 5 is compressed, as shown in figure 2, finally, the punching hole flanging male die 1 returns, the floating top core 4 returns under the action of the top core return spring 5, the punching hole flanging male die 1 is ejected out, and meanwhile, the waste material falls down along the floating through hole 4 b.
Claims (3)
1. The utility model provides a hole flanging and waste material ejection mechanism punches a hole which characterized in that: comprises a punching and hole flanging male die (1), a pressure plate (2), a hole flanging female die (3), a floating ejection core (4), an ejection core return spring (5) and a lower die holder (6), wherein the pressure plate (2), the hole flanging female die (3) and the lower die holder (6) are sequentially arranged from top to bottom, an upper through hole (2a) is arranged in the middle of the pressure plate (2), a middle through hole (3a) is arranged in the middle of the hole flanging female die (3), a lower through hole (6a) is arranged in the middle of the lower die holder (6), one section of the floating ejection core (4) is arranged in the middle through hole (3a), the other section of the floating ejection core is arranged in the lower through hole (6a), the outer diameter of the floating ejection core (4) is matched with the outer diameter of a product hole flanging, the ejection core return spring (5) is arranged outside the floating ejection core (4) and below the bulge (4a), a floating through hole is arranged in the floating ejection core, and the, the punching and flanging male die (1) is sequentially provided with a punching section (1a) and a flanging section (1b) from bottom to top, the diameter of the punching section (1a) is matched with the diameter of the upper end of the floating through hole (4b), and the diameter of the flanging section (1b) is equal to the flanging inner diameter of a product.
2. A punch hole flanging and slug ejection mechanism as recited in claim 1, further comprising: well through-hole (3a) are big end down's second grade step hole, go up through-hole (2a) and through-hole (6a) are big end down's second grade step hole down, and the upper end internal diameter of well through-hole (3a) equals with through-hole (6a) lower extreme internal diameter down, and well through-hole (3a) lower extreme internal diameter equals with through-hole (6a) upper end internal diameter down, it is provided with protruding (4a) that the round is used for installing ejector core return spring (5) to float ejector core (4) outward, and the external diameter of protruding (4a) and the lower extreme internal diameter phase-match of well through-hole (3a), and the external diameter of ejector core return spring (5) and the external diameter phase-match of protruding (4 a).
3. A punch hole flanging and slug ejection mechanism as claimed in claim 1 or 2, wherein: and the punching section (1a) and the hole flanging section (1b) are provided with chamfers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932571.3U CN210907718U (en) | 2019-11-11 | 2019-11-11 | Hole flanging and waste ejection mechanism punches a hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932571.3U CN210907718U (en) | 2019-11-11 | 2019-11-11 | Hole flanging and waste ejection mechanism punches a hole |
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| Publication Number | Publication Date |
|---|---|
| CN210907718U true CN210907718U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921932571.3U Active CN210907718U (en) | 2019-11-11 | 2019-11-11 | Hole flanging and waste ejection mechanism punches a hole |
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| Country | Link |
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| CN (1) | CN210907718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775276A (en) * | 2021-01-12 | 2021-05-11 | 法兰克斯管道紧固件(常熟)有限公司 | Punching process of flanging threaded hole of thin material |
| CN113399560A (en) * | 2021-05-25 | 2021-09-17 | 瑞鹄汽车模具股份有限公司 | Stamping part hole flanging die with floating female die structure |
| CN116786687A (en) * | 2023-08-28 | 2023-09-22 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
-
2019
- 2019-11-11 CN CN201921932571.3U patent/CN210907718U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775276A (en) * | 2021-01-12 | 2021-05-11 | 法兰克斯管道紧固件(常熟)有限公司 | Punching process of flanging threaded hole of thin material |
| CN113399560A (en) * | 2021-05-25 | 2021-09-17 | 瑞鹄汽车模具股份有限公司 | Stamping part hole flanging die with floating female die structure |
| CN116786687A (en) * | 2023-08-28 | 2023-09-22 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
| CN116786687B (en) * | 2023-08-28 | 2023-11-14 | 江苏南方精工股份有限公司 | External-die external-pressing burr mechanism for internal flanging thrust washer |
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