CN108145054A - A kind of external screw thread double bond slot forging piece molding die and moulding process - Google Patents
A kind of external screw thread double bond slot forging piece molding die and moulding process Download PDFInfo
- Publication number
- CN108145054A CN108145054A CN201711154869.1A CN201711154869A CN108145054A CN 108145054 A CN108145054 A CN 108145054A CN 201711154869 A CN201711154869 A CN 201711154869A CN 108145054 A CN108145054 A CN 108145054A
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- CN
- China
- Prior art keywords
- mold
- die
- double bond
- cavity
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K7/00—Making railway appurtenances; Making vehicle parts
- B21K7/12—Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes
Abstract
The present invention provides a kind of external screw thread double bond slot forging piece molding die, including：Mold, the mold includes top mold frame, upper mold and abnormal-shaped punch, the upper mold is connected to the lower section of the top mold frame, the abnormal-shaped punch is threaded through in the upper mold, the lower face of the abnormal-shaped punch is recessed inwardly to form upper cavity, the both sides of the upper cavity are formed with boss, and the boss extends downwardly the upper mold, and the size of the upper cavity and the size on the head of external screw thread double bond slot forging to be formed match；Lower mold, the lower mold includes die holder and lower die, the lower die is connected to the top of the die holder, the lead-in cavity and lower mode cavity of up/down perforation are formed in the lower die, the size of the lead-in cavity and the size of the upper mold match, and the size of the lower mode cavity and the size of the axle portion of external screw thread double bond slot forging to be formed match.
Description
Technical field
The present invention relates to precision metals to forge field, more particularly to a kind of external screw thread double bond slot forging piece molding die and molding
Technique.
Background technology
External screw thread double bond slot forging is mounted in the reverse clutch of electro-tricycle, and machining accuracy directly determines down
The backing performance of vehicle clutch.It please refers to Fig.1, for a kind of structure diagram of external screw thread double bond slot forging 100, the outer spiral shell
Line double bond slot forging 100 includes thinner axle portion 101 and stair-stepping head 102, being formed on the upper surface on the head 102
Two keyways 103.
In prior art, the general general profile molding that external screw thread double bond slot forging is completed using hot forging process.Finally, so
On its head, milling pin goes out keyway afterwards.Milling pin technique reduces the production efficiency of product, and can produce a large amount of waste materials, increases
The production cost of product.In addition, the keyway that milling pin technique is formed has the shortcomings that symmetry is poor, low etc. there are burr, intensity in slot.
Invention content
For above-mentioned technical problem, one aspect of the present invention proposes a kind of external screw thread double bond slot forging piece molding die, tool
Body technique scheme is as follows：
A kind of external screw thread double bond slot forging piece molding die, it is characterised in that：It includes：
Mold, the mold include top mold frame, upper mold and abnormal-shaped punch, and the upper mold is connected to the top mold frame
Lower section, the abnormal-shaped punch are threaded through in the upper mold, and the lower face of the abnormal-shaped punch is recessed inwardly to form upper cavity, described
The both sides of upper cavity are formed with boss, and the boss extends downwardly the upper mold, the size of the upper cavity with it is to be formed outer
The size on the head of screw thread double bond slot forging matches；
Lower mold, the lower mold include die holder and lower die, and the lower die is connected to the top of the die holder, described
The lead-in cavity and lower mode cavity of up/down perforation are formed in lower die, the size of the lead-in cavity and the size of the upper mold match,
The size of the lower mode cavity and the size of the axle portion of external screw thread double bond slot forging to be formed match.
In a specific embodiment, the mold further includes Upper Die-sleeve, and the Upper Die-sleeve is connected to the top mold frame
Lower face on, the upper mold is threaded through in the Upper Die-sleeve and extends downwardly the Upper Die-sleeve.
In a specific embodiment, the lower mold further includes ejector beam, and the ejector beam is threaded through the lower mode cavity
Interior, when the ejector beam moves up, the upper end can extend into the lead-in cavity.
Another aspect of the present invention proposes a kind of external screw thread double bond slot forging moulding process, and specific technical solution is as follows：
A kind of external screw thread double bond slot forging moulding process, includes the following steps：
S1, a bar is provided；
S2, one end of bar just squeeze using cold forging die, obtain the blank with axle portion；
S3, by blank be placed in molding die carry out cold-extruded obtain the finished product with double bond slot, wherein：The step
The molding die employed in S3 includes：
Mold, the mold include top mold frame, upper mold and abnormal-shaped punch, and the upper mold is connected to the top mold frame
Lower section, the abnormal-shaped punch are threaded through in the upper mold, and the lower face of the abnormal-shaped punch is recessed inwardly to form upper cavity, described
The both sides of upper cavity are formed with boss, and the boss extends downwardly the upper mold, the size of the upper cavity with it is to be formed outer
The size on the head of screw thread double bond slot forging matches；
Lower mold, the lower mold include die holder and lower die, and the lower die is connected to the top of the die holder, described
The lead-in cavity and lower mode cavity of up/down perforation are formed in lower die, the size of the lead-in cavity and the size of the upper mold match,
The size of the lower mode cavity and the size of the axle portion of external screw thread double bond slot forging to be formed match.
In a specific embodiment, stress relief annealing is further included after the step S1, before the step S2, is thrown
Ball, phosphorus saponification step.
In a specific embodiment, phosphorus saponification step has been further included after the step S2, before the step S3.
Using external screw thread double bond slot forging piece molding die provided by the invention, the forging of external screw thread double bond slot can be disposably completed
The head molding of part, and squeeze out double bond slot in the upper surface on its head.
Compared with prior art, present invention reduces the production cycle of external screw thread double bond slot forging, the life of product is reduced
Produce cost.In addition, compared with the keyway that milling pin technique is formed, through squeeze the keyway formed have symmetry is good, impulse- free robustness in slot,
The advantages that intensity is high.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, it can also be obtained according to these attached drawings other
Attached drawing.Wherein：
Fig. 1 is a kind of structure diagram of external screw thread double bond slot forging；
Fig. 2 is the product form variation diagram of external screw thread double bond slot forging moulding process provided by the invention；
Fig. 3 is the structure diagram of external screw thread double bond slot forging piece molding die provided by the invention；
Fig. 4 is the installation diagram of the upper mold and abnormal-shaped punch in Fig. 3.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
" one embodiment " or " embodiment " referred to herein refers to may be included at least one realization method of the present invention
A particular feature, structure, or characteristic." in one embodiment " that different places occur in the present specification not refers both to same
A embodiment, nor the individual or selective embodiment mutually exclusive with other embodiment.
Shown in please referring to Fig.2, the present invention provides a kind of external screw thread double bond slot forging moulding process, specifically include as follows
Step：
S1, a bar is provided, the bar is as shown in Figure 2 A.
S2, one end of bar just squeeze using cold forging die, obtain the blank with axle portion and contouring head, it is described
Blank is as shown in Figure 2 B.
S3, it blank 2B is placed in the external screw thread double bond slot forging piece molding die squeezes, to obtain with double bond
The finished product of slot, the finished product is as shown in Figure 2 C.
In a specific embodiment, stress relief annealing is further included after the step S1, before the step S2, is thrown
Ball, phosphorus saponification step, wherein：Annealing process can reduce the hardness of bar 2A, improve the mobility of its internal material, be follow-up
Cold-extruded and forming cold-extruded be ready；The ball blast technique can remove the oxide skin on bar 2A surfaces, and can be in bar 2A
Surface get large number of minute recesses so that its surface can store more lubricants；The phosphorus saponification process is then
The surface of bar 2A can be lubricated, the final surface roughness for promoting product.
In a specific embodiment, phosphorus saponification step, institute have been further included after the step S2, before the step S3
State the surface of phospholeum chemical industry artistic skill lubrication blank 2B, the final surface roughness for promoting product.
Please refer to Fig.3 and Fig. 4 shown in, the present invention provides a kind of external screw thread double bond slot forging shaping moulds for step S3
Tool, including mold and lower mold.Wherein：
The mold includes top mold frame 1, upper mold 3 and abnormal-shaped punch 4, and the upper mold 3 is connected under the top mold frame 1
Side, the abnormal-shaped punch 4 are threaded through in the upper mold 3, and the lower face of the abnormal-shaped punch 4 is recessed inwardly to form upper cavity 41,
The both sides of the upper cavity 41 are formed with boss 42, and the boss 42 extends downwardly the upper mold 3, the size of the upper cavity 41
Match with the size on the head of external screw thread double bond slot forging to be formed.
The lower mold includes die holder 7 and lower die 5, and the lower die 5 is connected to the top of the die holder 7, under described
The lead-in cavity 51 of up/down perforation and lower mode cavity 52, the size phase of the size of the lead-in cavity 51 and the upper mold 3 are formed in mould 5
Matching, the size of the lower mode cavity 52 and the size of the axle portion of external screw thread double bond slot forging to be formed match.
Using molding die provided by the invention, the head molding of external screw thread double bond slot blank can be realized and in its head
The upper surface in portion squeezes out double bond slot, so as to fulfill the final molding of external screw thread double bond slot.
Please continue to refer to shown in Fig. 3 and Fig. 4, the course of work of external screw thread double bond slot forging piece molding die provided by the invention
It is as follows：
1) axle portion of external screw thread double bond slot forging blank 2B is placed in downwards in mould cavity of resorption 52 by 1 backhaul of top mold frame.
2) top mold frame 1 moves down, and synchronously, upper mold 3 enters in lead-in cavity 51 and moved down along lead-in cavity 51, directly
Two boss 42 to 4 lower end of abnormal-shaped punch resist the upper surface on the head of external screw thread double bond slot forging blank 2B.
3) top mold frame 1 continues to move down, and boss 42 is to the upper surface shape on the head of external screw thread double bond slot forging blank 2B
Into squeezing so that the metal material at extruding is flowed to surrounding, the upper end on the head of external screw thread double bond slot forging blank 2B enters to
In upper cavity 41.Finally, the head of external screw thread double bond slot forging blank 2B is squeezed into stepped, the correspondence of the upper surface on head
Position forms two keyways consistent with the size shape of the boss 42.
4) top mold frame 1 move up, backhaul, the external screw thread double bond slot forging of extrusion forming is unloaded from lower mode cavity 52.
In a specific embodiment, in order to facilitate the installation and maintenance of upper mold 3, the mold further includes Upper Die-sleeve 2,
The Upper Die-sleeve 2 is connected on the lower face of the top mold frame 1, and the upper mold 3 is threaded through in the Upper Die-sleeve 2 and extends downwardly
The Upper Die-sleeve 2.
In a specific embodiment, the lower mold further includes ejector beam ejector beam 6, and the ejector beam 6 is threaded through institute
It states in lower mode cavity 52, when the ejector beam 6 moves up, the upper end can extend into the lead-in cavity 51.Complete external screw thread
After the molding of double bond slot forging, the ejector beam 6 is controlled to move up, can easily eject external screw thread double bond slot forging.
Above description has fully disclosed the specific embodiment of the present invention.It should be pointed out that being familiar with the field
Technical staff is to any change that the specific embodiment of the present invention is done all without departing from the range of claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (6)
1. a kind of external screw thread double bond slot forging piece molding die, it is characterised in that：It includes：
Mold, the mold include top mold frame, upper mold and abnormal-shaped punch, and the upper mold is connected under the top mold frame
Side, the abnormal-shaped punch is threaded through in the upper mold, and the lower face of the abnormal-shaped punch is recessed inwardly to form upper cavity, it is described on
The both sides of die cavity are formed with boss, and the boss extends downwardly the upper mold, the size of the upper cavity and outer spiral shell to be formed
The size on the head of line double bond slot forging matches；
Lower mold, the lower mold include die holder and lower die, and the lower die is connected to the top of the die holder, the lower die
The lead-in cavity and lower mode cavity of up/down perforation are inside formed with, the size of the lead-in cavity and the size of the upper mold match, described
The size of lower mode cavity and the size of the axle portion of external screw thread double bond slot forging to be formed match.
2. molding die as described in claim 1, it is characterised in that：The mold further includes Upper Die-sleeve, and the Upper Die-sleeve connects
It is connected on the lower face of the top mold frame, the upper mold is threaded through in the Upper Die-sleeve and extends downwardly the Upper Die-sleeve.
3. molding die as described in claim 1, it is characterised in that：The lower mold further includes ejector beam, the ejector beam
It is threaded through in the lower mode cavity, when the ejector beam moves up, the upper end can extend into the lead-in cavity.
4. a kind of external screw thread double bond slot forging moulding process, it is characterised in that：It includes the following steps：
S1, a bar is provided,
S2, one end of bar just squeeze using cold forging die, obtain the blank with axle portion；
S3, by blank be placed in molding die carry out cold-extruded obtain the finished product with double bond slot, wherein：In the step S3
The used molding die is claims 1 to 3 any one of them external screw thread double bond slot forging piece molding die.
5. moulding process as claimed in claim 4, it is characterised in that：It is also wrapped after the step S1, before the step S2
Include stress relief annealing, ball blast, phosphorus saponification step.
6. moulding process as claimed in claim 4, it is characterised in that：It is also wrapped after the step S2, before the step S3
Phosphorus saponification step is included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154869.1A CN108145054A (en) | 2017-11-20 | 2017-11-20 | A kind of external screw thread double bond slot forging piece molding die and moulding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154869.1A CN108145054A (en) | 2017-11-20 | 2017-11-20 | A kind of external screw thread double bond slot forging piece molding die and moulding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108145054A true CN108145054A (en) | 2018-06-12 |
Family
ID=62468995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711154869.1A Pending CN108145054A (en) | 2017-11-20 | 2017-11-20 | A kind of external screw thread double bond slot forging piece molding die and moulding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108145054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355312A (en) * | 2019-07-12 | 2019-10-22 | 江苏创一精锻有限公司 | Interior hexagonal cold-forging forming mold and technique in a kind of cup shell |
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| JPH0679392A (en) * | 1992-08-31 | 1994-03-22 | Aichi Steel Works Ltd | Gear forging method |
| JPH09108771A (en) * | 1995-10-16 | 1997-04-28 | Aichi Steel Works Ltd | Production of integrated body of counter driven gear with parking lock gear |
| CN102581208A (en) * | 2012-02-21 | 2012-07-18 | 中国农业大学 | Method for precisely carrying out hot forging on driven spiral bevel gear of automobile rear axle |
| CN103707017A (en) * | 2012-10-01 | 2014-04-09 | 江苏威鹰机械有限公司 | Automatically continuously variable transmission (CVT) V-shaped belt pulley axle finish-forging and plastic- molding process |
| CN103722110A (en) * | 2014-01-18 | 2014-04-16 | 浙江鑫鼎盛实业有限公司 | Three-pin frame forging forming device and forming process |
| CN104153929A (en) * | 2014-06-30 | 2014-11-19 | 宁波惠山汽配制造有限公司 | One-way device spline sleeve and processing method thereof |
| CN204396767U (en) * | 2015-01-05 | 2015-06-17 | 邓州市良机锻压设备制造有限公司 | Bullet train wheel forging and molding mold |
| CN104759572A (en) * | 2015-04-13 | 2015-07-08 | 盐城工业职业技术学院 | Combined type starlike sleeve pre-forging die |
| CN204639019U (en) * | 2015-05-13 | 2015-09-16 | 太仓久信精密模具有限公司 | A kind of gear warm forging extrusion molding dies |
| CN205147199U (en) * | 2015-10-30 | 2016-04-13 | 大丰市昱祺机械制造有限公司 | Crowded mould of cold of strengthening rib shape pick is taken to dysmorphism |
| KR101741543B1 (en) * | 2016-11-18 | 2017-06-15 | (주)호창엠에프 | manufacturing method for differential cover of differential assembly |
| CN207668416U (en) * | 2017-11-20 | 2018-07-31 | 江苏森威集团飞达股份有限公司 | A kind of external screw thread double bond slot forging piece molding die |
-
2017
- 2017-11-20 CN CN201711154869.1A patent/CN108145054A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679392A (en) * | 1992-08-31 | 1994-03-22 | Aichi Steel Works Ltd | Gear forging method |
| JPH09108771A (en) * | 1995-10-16 | 1997-04-28 | Aichi Steel Works Ltd | Production of integrated body of counter driven gear with parking lock gear |
| CN102581208A (en) * | 2012-02-21 | 2012-07-18 | 中国农业大学 | Method for precisely carrying out hot forging on driven spiral bevel gear of automobile rear axle |
| CN103707017A (en) * | 2012-10-01 | 2014-04-09 | 江苏威鹰机械有限公司 | Automatically continuously variable transmission (CVT) V-shaped belt pulley axle finish-forging and plastic- molding process |
| CN103722110A (en) * | 2014-01-18 | 2014-04-16 | 浙江鑫鼎盛实业有限公司 | Three-pin frame forging forming device and forming process |
| CN104153929A (en) * | 2014-06-30 | 2014-11-19 | 宁波惠山汽配制造有限公司 | One-way device spline sleeve and processing method thereof |
| CN204396767U (en) * | 2015-01-05 | 2015-06-17 | 邓州市良机锻压设备制造有限公司 | Bullet train wheel forging and molding mold |
| CN104759572A (en) * | 2015-04-13 | 2015-07-08 | 盐城工业职业技术学院 | Combined type starlike sleeve pre-forging die |
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| CN205147199U (en) * | 2015-10-30 | 2016-04-13 | 大丰市昱祺机械制造有限公司 | Crowded mould of cold of strengthening rib shape pick is taken to dysmorphism |
| KR101741543B1 (en) * | 2016-11-18 | 2017-06-15 | (주)호창엠에프 | manufacturing method for differential cover of differential assembly |
| CN207668416U (en) * | 2017-11-20 | 2018-07-31 | 江苏森威集团飞达股份有限公司 | A kind of external screw thread double bond slot forging piece molding die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355312A (en) * | 2019-07-12 | 2019-10-22 | 江苏创一精锻有限公司 | Interior hexagonal cold-forging forming mold and technique in a kind of cup shell |
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