CN201008901Y - Primary molding mould with special-shaped hole stepped gear wheel - Google Patents
Primary molding mould with special-shaped hole stepped gear wheel Download PDFInfo
- Publication number
- CN201008901Y CN201008901Y CN 200720035534 CN200720035534U CN201008901Y CN 201008901 Y CN201008901 Y CN 201008901Y CN 200720035534 CN200720035534 CN 200720035534 CN 200720035534 U CN200720035534 U CN 200720035534U CN 201008901 Y CN201008901 Y CN 201008901Y
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- punch
- die
- concave die
- mould
- shaped hole
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Abstract
The utility model discloses a gear once-forming mould with special-shaped step holes, which comprises a mould base, a lower mould fixing cover, a concave die external ring, a concave die pressing ring, a fixing nut, a fixing cover, a bush, a first punch, a concave die, an ejector rod and a second punch; the lower mould fixing cover is arranged at the lower end of the mould base; the concave die external ring is arranged at the outer side of the concave die and fixed in the lower mould fixing cover by the concave die pressing ring; the first punch and the second punch are fixed at the upper end of the mould base by the fixing nut and the fixing cover, and positioned by the bush in the position fitted with the concave die; the ejector rod for workpiece demoulding is arranged on the mould base at the lower end of the concave die. The utility model effectively solves problems of low machining efficiency of special-shaped step hole gear and uncontrolled machining precision, thus the utility model is particularly suitable for gear machining and has great practical value.
Description
One, technical field
The utility model relates to a kind of gear machining apparatus, particularly a kind of mould that is used for the cold extrusion gear structure, and specifically a kind of have an irregularly-shaped hole stepped gear wheel one-time forming die.
Two, background technology
The processing of irregularly-shaped hole stepped gear wheel is the difficult point of machining, and the object of processing is the gear teeth face processing difficulties not only, and simultaneously because endoporus is a non-circular hole, thereby difficulty of processing is big.
The processing method that adopts is at present: the flank of tooth adopts gear-hobbing machine processing, middle irregularly-shaped hole to adopt and draws pin processing.The shortcoming of this processing mode is: efficient is low; Burr is big, removes the burr difficulty, and product percent of pass is low, and labor content is very big.
Three, summary of the invention
The purpose of this utility model provides a kind of irregularly-shaped hole stepped gear wheel one-time forming die.This mould adopts a secondary mould be shaped simultaneously endoporus and profile of tooth, guarantees that endoporus and profile of tooth circular runout meet the demands, and have improved workpiece quality.
The purpose of this utility model is achieved through the following technical solutions:
A kind of have an irregularly-shaped hole stepped gear wheel one-time forming die, and it is characterized in that: it comprises mould bases, counterdie fixed cover, die outer ring, die trim ring, hold-down nut, fixed cover, lining, first punch, die, push rod and second punch; The counterdie fixed cover is arranged on the mould bases lower end; The die outer ring is sleeved on the outside of die and is fixed in the counterdie fixed cover by the die trim ring; First punch and second punch are fixed on the mould bases upper end by hold-down nut and fixed cover, and are positioned at the position suitable with die by lining; Be used for making the push rod of the workpiece demoulding to be arranged on the mould bases and be positioned at the lower end of die.
The utility model is provided with the adjustment bolt that is used for adjusting die and first punch and the second punch axiality on the counterdie fixed cover.
The utility model is provided with backing plate between first punch and mould bases upper end, backing plate can be used for keeping first punch and second punch steadily to move down.
The utility model with the combination of first punch and second punch after fine finishining again, guaranteed the axiality of irregularly-shaped hole shaped portion and cylindrical.Reduced heat treatment and caused that distortion and stress concentrates.
The utility model should correctly be installed by its status requirement when assembling, and the gap between punch and the die should guarantee that evenly it is flexibly movable to answer between the parts of motion mutually, and punch is stressed even when guaranteeing extruding, and it is long to prolong die life.
The utility model has adopted the mould structure of irregularly-shaped hole stepped gear wheel once-forming, and compared with prior art, its advantage is: 1, punch and die structure optimization, and the intensity of punch, die is improved, and has prolonged the service life of mould; 2, owing to adopted special mould structure, make endoporus and profile of tooth once-forming, guaranteed the workpiece quality requirement, improved production efficiency, reduced production cost; 3, the utility model is changed conveniently.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an irregularly-shaped hole stepped gear wheel structural representation described in the utility model;
Fig. 3 is an irregularly-shaped hole stepped gear wheel extrusion blank schematic diagram described in the utility model;
Fig. 4 is first punch and the second punch structure schematic diagram in the utility model.
Five, the specific embodiment
A kind of irregularly-shaped hole stepped gear wheel one-time forming die that has described in the utility model, comprise mould bases 1, counterdie fixed cover 2, die outer ring 3, die trim ring 4, hold-down nut 5, fixed cover 6, backing plate 7, lining 8, the first punch 9, die 10, push rod 11 and second punch 12.
Counterdie fixed cover 2 is arranged on mould bases 1 lower end; Die outer ring 3 is sleeved on the outside of die 10 and is fixed in the counterdie fixed cover 2 by die trim ring 4; First punch 9 and second punch 12 are fixed on mould bases 1 upper end by hold-down nut 5 and fixed cover 6, and are positioned at the position suitable with die 10 by lining 8, and first punch 9 and second punch 12 are combined.Fixed cover 6 and backing plate 7 adopt screw 13 to be fixed on the mould bases 1.Be used for making the push rod 11 of the workpiece demoulding to be arranged on the mould bases 1 and be positioned at the lower end of die 10.
During extruding, at first extrusion blank is placed in the die 10, on counterdie fixed cover 2, is provided with the adjustment bolt 14 that is used for adjusting die 10 and first punch 9 and second punch, 12 axialities.Make die 10 coaxial by adjusting bolt 14 with first punch 9 and second punch 12.Then, first punch 9 and second punch 12 are descending, and second punch 12 at first enters in the blank pilot hole, continue descendingly, and extrusion blank is shaped irregularly-shaped inner hole; Continue descendingly, first punch, 9 end face extrusion blanks under the squeezing action of die 10, form profile of tooth.When hold-down nut 5 end faces contacted with die 10 end faces, first punch 9 and second punch 12 all can not be descending, and extruding finishes.Push rod 11 is up, and workpiece is ejected from die 10.
For protecting first punch 9 and second punch 12, can adopt guide pillar and guide pin bushing to lead.For protection die 10, can take spacing measure on the mould structure.The utility model punch is changed convenient.The utility model makes endoporus and profile of tooth once-forming, has guaranteed the workpiece quality requirement, has improved production efficiency, has reduced production cost.
Claims (3)
1. one kind has irregularly-shaped hole stepped gear wheel one-time forming die, it is characterized in that: it comprises mould bases (1), counterdie fixed cover (2), die outer ring (3), die trim ring (4), hold-down nut (5), fixed cover (6), lining (8), first punch (9), die (10), push rod (11) and second punch (12); Counterdie fixed cover (2) is arranged on mould bases (1) lower end; Die outer ring (3) is sleeved on the outside of die (10) and is fixed in the counterdie fixed cover (2) by die trim ring (4); First punch (9) and second punch (12) are fixed on mould bases (1) upper end by hold-down nut (5) and fixed cover (6), and are positioned at and the suitable position of die (10) by lining (8); Be used for making the push rod (11) of the workpiece demoulding to be arranged on the lower end that die (10) were gone up and be positioned to mould bases (1).
2. a kind of irregularly-shaped hole stepped gear wheel one-time forming die that has according to claim 1 is characterized in that: be provided with the adjustment bolt (14) that is used for adjusting die (10) and first punch (9) and second punch (12) axiality on counterdie fixed cover (2).
3. a kind of irregularly-shaped hole stepped gear wheel one-time forming die that has according to claim 1 is characterized in that: be provided with backing plate (7) between first punch (9) and mould bases (1) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720035534 CN201008901Y (en) | 2007-03-30 | 2007-03-30 | Primary molding mould with special-shaped hole stepped gear wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720035534 CN201008901Y (en) | 2007-03-30 | 2007-03-30 | Primary molding mould with special-shaped hole stepped gear wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008901Y true CN201008901Y (en) | 2008-01-23 |
Family
ID=39043833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720035534 Expired - Fee Related CN201008901Y (en) | 2007-03-30 | 2007-03-30 | Primary molding mould with special-shaped hole stepped gear wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008901Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947568A (en) * | 2010-09-16 | 2011-01-19 | 陕西黄河集团有限公司 | Multiple cold extrusion molding method of multi-cavity thin-shell part with non-uniform sections |
| CN102303059A (en) * | 2011-09-21 | 2012-01-04 | 南京工业职业技术学院 | One-time molding method of gear wheel shaft |
| CN102941239A (en) * | 2012-11-28 | 2013-02-27 | 力帆实业(集团)股份有限公司 | Starting dynamo isolator gear wheel cold extrusion die |
| CN105344735A (en) * | 2015-11-30 | 2016-02-24 | 玉环普天单向器有限公司 | Cold extrusion forming mold and forming process of output shaft having inner hole |
| CN109108133A (en) * | 2018-08-03 | 2019-01-01 | 宁国市金泰金属制品有限公司 | A kind of clutch coupling of washing machine flange punch forming technology |
| CN110090873A (en) * | 2019-05-24 | 2019-08-06 | 合肥百恒设备模具有限公司 | A kind of extrusion forming device of aluminum component stamping parts |
-
2007
- 2007-03-30 CN CN 200720035534 patent/CN201008901Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947568A (en) * | 2010-09-16 | 2011-01-19 | 陕西黄河集团有限公司 | Multiple cold extrusion molding method of multi-cavity thin-shell part with non-uniform sections |
| CN102303059A (en) * | 2011-09-21 | 2012-01-04 | 南京工业职业技术学院 | One-time molding method of gear wheel shaft |
| CN102941239A (en) * | 2012-11-28 | 2013-02-27 | 力帆实业(集团)股份有限公司 | Starting dynamo isolator gear wheel cold extrusion die |
| CN102941239B (en) * | 2012-11-28 | 2014-08-13 | 力帆实业(集团)股份有限公司 | Starting dynamo isolator gear wheel cold extrusion die |
| CN105344735A (en) * | 2015-11-30 | 2016-02-24 | 玉环普天单向器有限公司 | Cold extrusion forming mold and forming process of output shaft having inner hole |
| CN109108133A (en) * | 2018-08-03 | 2019-01-01 | 宁国市金泰金属制品有限公司 | A kind of clutch coupling of washing machine flange punch forming technology |
| CN110090873A (en) * | 2019-05-24 | 2019-08-06 | 合肥百恒设备模具有限公司 | A kind of extrusion forming device of aluminum component stamping parts |
| CN110090873B (en) * | 2019-05-24 | 2020-06-02 | 合肥百恒设备模具有限公司 | Extrusion forming device for aluminum part stamping parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20100330 |