CN104785696A - Warm-forging and cold-extruding die for thin-wall connecting shafts - Google Patents
Warm-forging and cold-extruding die for thin-wall connecting shafts Download PDFInfo
- Publication number
- CN104785696A CN104785696A CN201510125567.6A CN201510125567A CN104785696A CN 104785696 A CN104785696 A CN 104785696A CN 201510125567 A CN201510125567 A CN 201510125567A CN 104785696 A CN104785696 A CN 104785696A
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- China
- Prior art keywords
- die
- ratchet
- cold
- forging
- wall connecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a warm-forging and cold-extruding die for thin-wall connecting shafts. The warm-forging and cold-extruding die comprises an upper die plate, a lower die plate and a lower die holder. A pawl tray is arranged in a top step hole of the lower die holder in a sleeved mode. A female die is arranged on the top end face of the pawl tray and sleeved with multiple layers of prestress rings. A gland presses the female die and the tops of the multiple layers of prestress rings. Six square stepped through holes are evenly formed in the pawl tray at 120-degree intervals in the circumferential direction. Bolts are inserted in the square stepped through holes. Pawls are arranged on the rod portions of the bolts in a sleeving mode, and the rod portions of the bolts are sleeved with springs which are located between the pawls and the stepped walls of the square stepped through holes. A base is fixedly arranged on the lower end face of the upper die plate, and a punch matched with the female die is arranged on the base. The warm-forging and cold-extruding die is reasonable and reliable in structure and high in work efficiency, blanks are pre-formed through warm forging and finally formed through cold extruding, the problem that thin-wall connecting shafts are difficult to form through direct hot forging is solved, the quality of finally-formed products is guaranteed, product precision is high, the cold machining time is shortened, and raw materials are saved.
Description
Technical field
The present invention relates to mould applications, specifically a kind of thin wall connecting axle warm forging, cold extrusion die.
Background technology
Thin wall connecting axle finished product wall thickness only has 3mm, and length is more than 75mm, if adopt thermal forging technology, wall thickness needs to thicken to 8mm, can forge shaping, and very large to mould infringement, lathe overload, is difficult to realize mass production, and cold working cost increases severely.
Now adopt warm forging technique, obtain semi-finished product, then after saponification process, adopt cold-extrusion technology to make its inner chamber shaping, finally obtain blank finished product.After adopting cold-extrusion technology, connecting axle inner chamber only needs partial operation can reach finished product requirement.
Summary of the invention
The object of this invention is to provide the warm forging of a kind of thin wall connecting axle, cold extrusion die, the ratchet be arranged on mould by elasticity carries out automatic demoulding to workpiece, realizes operation automation.
Technical scheme of the present invention is as follows:
The warm forging of a kind of thin wall connecting axle, cold extrusion die, include upper and lower template and die shoe, described die shoe is fixedly mounted on lower bolster, it is characterized in that: position, die shoe top stage hole is set with ratchet pallet, the top end face of ratchet pallet is provided with concentric die, be set with multilayer shrink ring outside die, die and multilayer shrink ring top are pressed with the gland be fixed on die shoe; Described ratchet pallet side wall is provided with horizontal square step through-hole, bolt is fitted with in square step through-hole, bolt head is positioned at outside square step through-hole, bolt shank is set with the ratchet for the demoulding, bolt shank is set with spring in position between ratchet and the step wall of square stepped hole, and ratchet head stretches out square step through-hole; The lower surface of described cope match-plate pattern is fixed with base, base is provided with the drift coordinated with die.
The warm forging of a kind of thin wall connecting axle, cold extrusion die, is characterized in that: the lower surface of described base is fixed with adapter sleeve, is set with contiguous block in adapter sleeve, the bottom surface of contiguous block be fixed with drift.
The warm forging of a kind of thin wall connecting axle, cold extrusion die, is characterized in that: be set with inside and outside two-layer shrink ring outside die, the stepped hole on gland coordinates with External prestressed circle; Described gland hexagon-headed bolt is connected with die shoe.
The warm forging of a kind of thin wall connecting axle, cold extrusion die, is characterized in that: described ratchet pallet is between die and die shoe, and the upper and lower stepped hole of ratchet pallet coordinates respectively at External prestressed circle and die shoe.
The warm forging of a kind of thin wall connecting axle, cold extrusion die, is characterized in that: described ratchet head upper end is arc.
During work, workpiece is placed with in described die, described drift moves down, and extend into extruding workpiece in die, now workpiece pressurized moving down in die, when workpiece moves down into the curved end of ratchet, due to the elastic force effect of spring, ratchet gear, at workpiece oral area, ensures that workpiece can not move with on drift, make workpiece automatic demoulding, finally make the inner chamber of workpiece and cylindrical sidewall shaping.
Beneficial effect of the present invention:
The present invention is rational in infrastructure, reliable, operating efficiency is high, by the preformed blank of warm forging, carry out cold extrusion final molding, the direct forge hot solving thin wall connecting axle is difficult to shaping problem, ensure that the product quality of final molding, Product Precision is high, and cold working time shorten, saves material, and product cavity only needs partial operation, improve the service life of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
See Fig. 1.
The warm forging of a kind of thin wall connecting axle, cold extrusion die, include upper and lower template 1,19 and die shoe 18, die shoe 18 is fixedly mounted on lower bolster 19 by hexagon socket head cap screw 20, die 10 adopts taper fit to be press-fitted in inside and outside shrink ring 11,14, gland 13 hexagon-headed bolt 12 is connected with die shoe 18, and the stepped hole on gland 13 coordinates with External prestressed circle 14.Ratchet pallet 21 is had between die 10 and die shoe 18, the upper and lower stepped hole of pallet 21 coordinates respectively at External prestressed circle 14 and die shoe 18, pallet 21 is provided with 120 ° of uniform square openings, nut is passed through in square opening, screw rod 17, spring 16 are connected with ratchet 15, can be movable in square opening, play demoulding effect, the lower surface of cope match-plate pattern 1 is installed with base 3 by hexagon socket head cap screw 2, and base 3 is fixed with towards the drift 8 of die 10 by contiguous block 4,7.
Workpiece 9 is placed with in die 10, drift 8 moves down, extend into extruding workpiece 9 in die 10, now workpiece 9 pressurized moving down in die 10, when workpiece 9 moves down into the end of ratchet 15, due to the elastic force effect of spring 16, ratchet 15 keeps off at workpiece 9 oral area, ensure workpiece 9 can not move with on drift 8, make workpiece 9 automatic demoulding, finally make the inner chamber of workpiece 9 and cylindrical sidewall shaping.
Claims (5)
1. thin wall connecting axle warm forging, cold extrusion die, include upper and lower template and die shoe, described die shoe is fixedly mounted on lower bolster, it is characterized in that: position, die shoe top stage hole is set with ratchet pallet, the top end face of ratchet pallet is provided with concentric die, be set with multilayer shrink ring outside die, die and multilayer shrink ring top are pressed with the gland be fixed on die shoe; Described ratchet pallet side wall is provided with horizontal square step through-hole, bolt is fitted with in square step through-hole, bolt head is positioned at outside square step through-hole, bolt shank is set with the ratchet for the demoulding, bolt shank is set with spring in position between ratchet and the step wall of square stepped hole, and ratchet head stretches out square step through-hole; The lower surface of described cope match-plate pattern is fixed with base, base is provided with the drift coordinated with die.
2. a kind of thin wall connecting axle according to claim 1 warm forging, cold extrusion die, is characterized in that: the lower surface of described base is fixed with adapter sleeve, is set with contiguous block in adapter sleeve, and the bottom surface of contiguous block is fixed with drift.
3. a kind of thin wall connecting axle according to claim 1 warm forging, cold extrusion die, is characterized in that: be set with inside and outside two-layer shrink ring outside die, the stepped hole on gland coordinates with External prestressed circle; Described gland hexagon-headed bolt is connected with die shoe.
4. a kind of thin wall connecting axle according to claim 3 warm forging, cold extrusion die, is characterized in that: described ratchet pallet is between die and die shoe, and the upper and lower stepped hole of ratchet pallet coordinates respectively at External prestressed circle and die shoe.
5. a kind of thin wall connecting axle according to claim 1 warm forging, cold extrusion die, is characterized in that: described ratchet head upper end is arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125567.6A CN104785696A (en) | 2015-03-20 | 2015-03-20 | Warm-forging and cold-extruding die for thin-wall connecting shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510125567.6A CN104785696A (en) | 2015-03-20 | 2015-03-20 | Warm-forging and cold-extruding die for thin-wall connecting shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785696A true CN104785696A (en) | 2015-07-22 |
Family
ID=53551133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510125567.6A Pending CN104785696A (en) | 2015-03-20 | 2015-03-20 | Warm-forging and cold-extruding die for thin-wall connecting shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104785696A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562577A (en) * | 2016-03-15 | 2016-05-11 | 洛阳华冠齿轮股份有限公司 | Gear punching and trimming compound mold and method thereof |
| CN105921662A (en) * | 2016-05-04 | 2016-09-07 | 盐城理研精密锻造有限公司 | Dual-station forward finishing die and finishing process |
| CN108393423A (en) * | 2018-04-12 | 2018-08-14 | 宁波三钻工业有限公司 | A kind of cage surfaces externally and internally molding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233542A (en) * | 1998-04-30 | 1999-11-03 | 南海市黄岐良奇钢瓶总厂 | Art for forming and reducing diameter of lower end of envelope of steel cylinder |
| JP2005161364A (en) * | 2003-12-03 | 2005-06-23 | Minebea Co Ltd | Method for forming involute serration on hollow shaft |
| CN101502855A (en) * | 2009-03-02 | 2009-08-12 | 湖北天轮机械有限公司 | Reverse cold extrusion mold for car rear transversal stabilizer bar casing tube |
| CN202052861U (en) * | 2011-04-25 | 2011-11-30 | 宁波向阳坦科斯特电子有限公司 | U-iron drawing die |
| CN203061588U (en) * | 2012-12-29 | 2013-07-17 | 牟维军 | Metal extrusion die |
| CN204657368U (en) * | 2015-03-20 | 2015-09-23 | 安徽铖友汽车零部件制造有限公司 | The warm forging of thin wall connecting axle, cold extrusion die |
-
2015
- 2015-03-20 CN CN201510125567.6A patent/CN104785696A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233542A (en) * | 1998-04-30 | 1999-11-03 | 南海市黄岐良奇钢瓶总厂 | Art for forming and reducing diameter of lower end of envelope of steel cylinder |
| JP2005161364A (en) * | 2003-12-03 | 2005-06-23 | Minebea Co Ltd | Method for forming involute serration on hollow shaft |
| CN101502855A (en) * | 2009-03-02 | 2009-08-12 | 湖北天轮机械有限公司 | Reverse cold extrusion mold for car rear transversal stabilizer bar casing tube |
| CN202052861U (en) * | 2011-04-25 | 2011-11-30 | 宁波向阳坦科斯特电子有限公司 | U-iron drawing die |
| CN203061588U (en) * | 2012-12-29 | 2013-07-17 | 牟维军 | Metal extrusion die |
| CN204657368U (en) * | 2015-03-20 | 2015-09-23 | 安徽铖友汽车零部件制造有限公司 | The warm forging of thin wall connecting axle, cold extrusion die |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562577A (en) * | 2016-03-15 | 2016-05-11 | 洛阳华冠齿轮股份有限公司 | Gear punching and trimming compound mold and method thereof |
| CN105921662A (en) * | 2016-05-04 | 2016-09-07 | 盐城理研精密锻造有限公司 | Dual-station forward finishing die and finishing process |
| CN108393423A (en) * | 2018-04-12 | 2018-08-14 | 宁波三钻工业有限公司 | A kind of cage surfaces externally and internally molding machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |