CN220760905U - Forging die for bearing ring - Google Patents
Forging die for bearing ring Download PDFInfo
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- CN220760905U CN220760905U CN202322525753.1U CN202322525753U CN220760905U CN 220760905 U CN220760905 U CN 220760905U CN 202322525753 U CN202322525753 U CN 202322525753U CN 220760905 U CN220760905 U CN 220760905U
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- blank
- die
- conical
- reverse extrusion
- back extrusion
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- 238000005242 forging Methods 0.000 title claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 101
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000004080 punching Methods 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The forging die comprises a back extrusion die for forming a back extrusion blank and a through hole die for forming a perforation blank, wherein the back extrusion die comprises a upsetting cake blank, a back extrusion female die and a back extrusion punch, an inner hole of the back extrusion female die is arranged as a conical hole with a big upper part and a small lower part, the back extrusion blank is arranged in the conical hole, the taper of the outer conical surface of the back extrusion blank is matched with the conical hole, and a conical section at the lower part of the back extrusion punch is pressed in a conical groove above the back extrusion blank to form the back extrusion blank; according to the utility model, the reverse extrusion die for forming the reverse extrusion blank and the hole punching die for forming the hole punching blank are arranged, so that compared with the prior art, the production of a material core, namely waste, is greatly reduced, the utilization rate of raw materials is improved, and the manufacturing cost of enterprises is reduced.
Description
Technical Field
The utility model relates to the technical field of bearing forging, in particular to a forging die for a bearing ring.
Background
As is known, the demands of the bearing industry are greatly reduced, the benefits of various bearing enterprises are generally reduced, and the enterprises need to carry out internal innovation to reduce consumption and reduce cost expenditure in order to reduce loss and maintain competitiveness; the proportion of raw materials in the bearing manufacturing is large, how to improve the material utilization rate is the key for reducing the cost, and raw material cores, namely waste materials, are required to be produced in the bearing forging production, so that the waste materials are reduced, and the consumption of raw materials is also reduced; in order to improve the utilization rate of raw materials in the process of ring forging of the bearing ring, the design of a forging die of the bearing ring is determined to be researched and developed.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses a forging die for a bearing ring.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the utility model provides a forging die of bearing ring, includes the back extrusion mould that forms the back extrusion stock, forms the punching hole mould that props of punching stock, and the back extrusion mould includes upsetting cake stock, back extrusion die and back extrusion drift, and the hole setting of back extrusion die is big-end-up's bell mouth, and the back extrusion stock sets up in the bell mouth, and the tapering of the external conical surface of back extrusion stock matches with the bell mouth, and the conical section of back extrusion drift lower part is pressed and is established in the toper recess above the back extrusion stock, forms the back extrusion stock, props hole mould including punching die, support die and perforation drift, is fixed with the support die in the upper outer fringe department of punching die, and the internal diameter face of support die comprises the conical surface of upper portion and the straight face of lower part, and the bottom surface setting of back extrusion stock is in the upper portion of punching die, and the biggest external diameter of back extrusion stock cooperatees with the straight face of support die, is fixed with the flat material cover in the upper portion outer fringe department of back extrusion stock, the perforation is pressed and is established in flat material cover, the back extrusion stock and the hole of punching die.
The forging die of the bearing ring comprises an upper step and a diameter reduction section which is arranged below the step in an extending mode, wherein the diameter reduction section is formed by a cylindrical section A, a conical section and a cylindrical section B which are integrally arranged from top to bottom, the diameter of the cylindrical section B is smaller than that of the cylindrical section A, and the diameter of the cylindrical section B is identical to that of the lower bottom surface of a conical groove of the reverse extrusion blank.
The taper of the outer conical surface of the reverse extrusion blank of the forging die of the bearing ring is 5-7 degrees.
The forging die of the bearing ring has the taper of the conical groove which is 11-18 degrees as the taper of the conical section of the reverse extrusion punch.
The forging die for the bearing ring supports that the diameter of the upper port of the conical surface of the inner diameter surface of the female die is larger than that of the straight surface of the lower part, the conical degree of the conical surface is 5-7 degrees, and the height of the straight surface is 6-7mm.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the forging die for the bearing ring, the reverse extrusion die for forming the reverse extrusion blank and the hole penetrating die for forming the hole penetrating blank are arranged, so that compared with the prior art, the production of a material core, namely waste, is greatly reduced, the utilization rate of raw materials is improved, and the manufacturing cost of enterprises is reduced.
Drawings
Fig. 1 is a schematic structural view of a cake blank of the present utility model.
FIG. 2 is a schematic structural view of a back extrusion die of the present utility model.
FIG. 3 is a schematic view of the structure of the reverse extrusion preform of the present utility model.
Fig. 4 is a schematic structural view of the piercing punch of the present utility model.
Fig. 5 is a schematic view of the placement structure of the reverse extrusion preform of the present utility model.
Fig. 6 is a schematic structural view of the hole-piercing die of the present utility model.
Fig. 7 is a schematic view of the structure of a perforated blank of the present utility model.
In the figure: 1. upsetting a cake blank; 2. a back extrusion female die; 3. a tapered bore; 4. a counter extrusion punch; 5. a cone section; 6. reversely extruding a material blank; 7. an outer conical surface; 8. a conical groove; 9. punching a female die; 10. supporting a female die; 11. straight surfaces; 12. a conical surface; 13. punching a punch; 14. a cylindrical section B; 15. a conical section; 16. a cylindrical section A; 17. a material core; 18. a material flattening sleeve; 19. perforating the blank; 20. and a stripper plate.
Description of the embodiments
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
The forging die for the bearing ring comprises a back extrusion die for forming a back extrusion blank 6, a through hole supporting die for forming a perforation blank 19, wherein the back extrusion die comprises a upsetting cake blank 1, a back extrusion die 2 and a back extrusion punch 4, an inner hole of the back extrusion die 2 is arranged into a conical hole with a large upper part and a small lower part, the back extrusion blank 6 is arranged in the conical hole, the taper of an outer conical surface 7 of the back extrusion blank 6 is matched with the conical hole, a conical section at the lower part of the back extrusion punch 4 is pressed in a conical groove 8 on the back extrusion blank 6 to form the back extrusion blank 6, the through hole supporting die comprises a perforation die 9, a supporting die 10 and a perforation punch 13, the supporting die 10 is fixed at the outer edge of the upper part of the perforation die 9, the inner diameter surface of the supporting die 10 is composed of a conical surface 12 at the upper part and a straight surface 11 at the lower part, the bottom surface of the back extrusion blank 6 is arranged at the upper part of the perforation die, the maximum outer diameter of the back extrusion blank 6 is matched with the straight surface 11 of the supporting die 10, the back extrusion blank 6 is fixed at the position of the upper part of the outer edge 6, the back extrusion die is sleeved with the inner hole 18 and the back extrusion blank is formed in the back extrusion blank 6, and the through hole is sleeved with the perforation die 18.
Further, the perforating punch 13 comprises an upper step and a diameter-reducing section which is arranged below the step in an extending manner, the diameter-reducing section comprises a cylindrical section A16, a conical section 15 and a cylindrical section B14 which are integrally arranged from top to bottom, the diameter of the cylindrical section B14 is smaller than that of the cylindrical section A16, and the diameter of the cylindrical section B14 is the same as that of the lower bottom surface of the conical groove 8 of the back extrusion blank 6.
Further, the taper of the outer conical surface 7 of the back extrusion blank 6 is 5-7 degrees.
Further, the taper of the conical groove 8 is the same as the taper of the conical section 5 of the back extrusion punch 4 and is 11-18 degrees.
Further, the diameter of the upper port of the conical surface 12 of the inner diameter surface of the supporting die 10 is larger than that of the straight surface 11 at the lower part, the conical degree of the conical surface 12 is 5-7 degrees, and the height of the straight surface 11 is 6-7mm.
When the forging die for the bearing ring is used, as shown in fig. 1-3, a upsetting cake blank 1 is placed into a back extrusion die 2, a blank supporting block is arranged at the lower part of the inside of the back extrusion die 2 and positioned below the upsetting cake blank 1, an inner hole of the back extrusion die 2 is designed to be a taper hole 3 with a large upper part and a small lower part, the taper A of the taper hole 3 is 5-7 degrees, the lower part of a back extrusion punch 4 is designed to be a taper section 5 with a large upper part and a small lower part, the taper B of the taper section 5 is 11-18 degrees, the bottom diameter of the taper section 5 of the back extrusion punch 4 is D1, the back extrusion punch 4 moves downwards along with a sliding block of a press to a bottom dead center position, and a back extrusion blank 6 is obtained, at the moment, the outer taper 7 of the back extrusion blank 6 is equal to the taper of the taper hole 3 of the back extrusion die 2, the taper groove 8 in the upper part of the back extrusion die 6 is equal to the taper section 5, and the bottom diameter D1 of the taper groove 8 of the back extrusion die 6 is equal to the bottom diameter D1 of the back extrusion 4 taper section 5;
as shown in fig. 4-7, the back extrusion blank 6 is placed on the upper die surface of the perforating die 9, the large diameter end of the outer conical surface 7 of the back extrusion blank 6 is contacted with the upper die surface of the perforating die 9, a supporting die 10 is fixed at the outer edge of the upper surface of the perforating die 9, the diameter of the straight surface 11 of the inner hole of the supporting die 10 is consistent with the maximum outer diameter of the outer conical surface 7 of the back extrusion blank 6, the straight surface 11 limits the position of the outer conical surface 7 of the back extrusion blank 6, burrs are prevented from occurring in perforation, the taper C of the conical section 15 of the perforating punch 13 is 5-8 degrees, the diameter of the cylindrical section B14 is D2, the diameter of the cylindrical section B is equal to the bottom diameter D1 of the conical groove 8 of the back extrusion blank 6, the perforating punch 13 moves downwards along with a sliding block of a press, the perforating punch 13 passes through a flat material sleeve 18 fixed inside an external stripper 20, the step surface of the perforating punch 13 is pressed downwards on the upper end surface of the flat material sleeve 18, the cylindrical section B14 of the perforating punch 13 drops the material with the diameter D1 at the bottom of the conical groove 8 of the back extrusion blank 6, the outer diameter D3 of the material core 17 is generated, and the diameter D3 of the material core 17 is equal to the diameter D1 of the cylindrical section B1 of the back extrusion blank 6; after the raw material core 17 is produced, the perforating punch 13 continuously moves downwards along with a sliding block of a press machine, the inner conical surface of the reverse extrusion blank 6 is gradually enlarged by the conical surface of the conical section 15 of the perforating punch 13, meanwhile, the outer diameter of the upper half part of the reverse extrusion blank 6 is enlarged, the perforating punch 13 continuously moves downwards, the inner conical surface of the reverse extrusion blank 6 is enlarged into a straight hole by the cylindrical section A16 with the large outer diameter surface of the perforating punch 13, finally, the height of the reverse extrusion blank 6 is pressed to the process size H by the lower end surface of the flat sleeve 18, the perforated blank 19 is obtained, the outer diameter surface of the perforated blank 19 is changed into a straight surface from the outer conical surface 7 of the reverse extrusion blank 6, the inner hole size of the perforated blank 19 is D2, the size of D2 is equal to the outer diameter D4 of the cylindrical section A16 of the perforating punch 13, the conical surface with the height H1 is arranged at the lower part of the inner hole of the perforated blank 19, and the height H1 is 20-25% of the total height H of the perforated blank 19 for reaming; through the processes of back extrusion, perforation and hole supporting, the diameter of the material core 17 is reduced by 10-15mm compared with the diameter of the original process, and the material utilization rate is effectively improved.
The utility model is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the present utility model are presently considered to be suitable, however, it is to be understood that the present utility model is intended to include all such variations and modifications as fall within the spirit and scope of the present utility model.
Claims (5)
1. The utility model provides a forging die of bearing ring, includes the back extrusion die that forms back extrusion stock, the punching hole mould that forms perforation stock, characterized by: the reverse extrusion die comprises a upsetting cake blank, a reverse extrusion female die and a reverse extrusion punch, wherein an inner hole of the reverse extrusion female die is arranged into a conical hole with a large upper part and a small lower part, the reverse extrusion blank is arranged in the conical hole, the taper of the outer conical surface of the reverse extrusion blank is matched with the conical hole, a conical section at the lower part of the reverse extrusion punch is pressed and arranged in a conical groove on the reverse extrusion blank to form the reverse extrusion blank, the support female die is fixed at the outer edge of the upper part of the perforation female die, the inner diameter surface of the support female die consists of the conical surface of the upper part and the straight surface of the lower part, the bottom surface of the reverse extrusion blank is arranged at the upper part of the perforation female die, the maximum outer diameter of the reverse extrusion blank is matched with the straight surface of the support female die, and a flat material sleeve is fixed at the outer edge of the upper part of the reverse extrusion blank, and the perforation punch is pressed and arranged in the inner hole of the flat material sleeve, the reverse extrusion blank and the perforation female die to form the perforation blank.
2. The forging die for a bearing ring according to claim 1, wherein: the punching head comprises an upper step and a diameter reduction section which is arranged below the step in an extending mode, the diameter reduction section is formed by a cylindrical section A, a conical section and a cylindrical section B which are integrally arranged from top to bottom, the diameter of the cylindrical section B is smaller than that of the cylindrical section A, and the diameter of the cylindrical section B is identical to that of the lower bottom surface of the tapered groove of the reverse extrusion blank.
3. The forging die for a bearing ring according to claim 1, wherein: the taper of the outer conical surface of the reverse extrusion blank is 5-7 degrees.
4. The forging die for a bearing ring according to claim 1, wherein: the taper of the conical groove is the same as that of the conical section of the reverse extrusion punch, and the taper angles are 11-18 degrees.
5. The forging die for a bearing ring according to claim 1, wherein: the diameter of the upper port of the conical surface of the inner diameter surface of the supporting female die is larger than that of the straight surface of the lower part, the conical degree of the conical surface is 5-7 degrees, and the height of the straight surface is 6-7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322525753.1U CN220760905U (en) | 2023-09-18 | 2023-09-18 | Forging die for bearing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322525753.1U CN220760905U (en) | 2023-09-18 | 2023-09-18 | Forging die for bearing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220760905U true CN220760905U (en) | 2024-04-12 |
Family
ID=90600972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322525753.1U Active CN220760905U (en) | 2023-09-18 | 2023-09-18 | Forging die for bearing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220760905U (en) |
-
2023
- 2023-09-18 CN CN202322525753.1U patent/CN220760905U/en active Active
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