CN100402185C - Cold extrusion production process of support pin of clutch driven disk for automobile - Google Patents
Cold extrusion production process of support pin of clutch driven disk for automobile Download PDFInfo
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- CN100402185C CN100402185C CNB2005101113436A CN200510111343A CN100402185C CN 100402185 C CN100402185 C CN 100402185C CN B2005101113436 A CNB2005101113436 A CN B2005101113436A CN 200510111343 A CN200510111343 A CN 200510111343A CN 100402185 C CN100402185 C CN 100402185C
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Abstract
The present invention relates to a cold extrusion production technique of a supporting pin of a clutch spider for an automobile. Adopting a multistation cold header, the technique comprises the steps of cutting a cold drawing, punching a head hole in a first die, punching another head hole in a second die, chamfering both ends of a third die and middle molding on the third die, and finally punch forming of a fourth die. Middle workpieces in each working procedure are all automatically delivered to the next working procedure. Products can be once formed from raw materials by only one cold header in a multistation and step-by-step mode. The multistation cold header of the production technique of the present invention is operated by one man. Per shift can produce about 10, 000 pieces of products, which greatly improves productive efficiency. The production technique ensures the consistency of the accuracy and the quality of the products. Particularly, the parallelism of both end surfaces in the middle can be controlled within 0.03mm, which exceeds the design requirement of 0.05MM. The present invention has no waste generation, so materials are fully used. Thus, the utilization rate of the raw materials is enhanced. After the products produced by the present invention are actually assembled on the clutch spider for an automobile, the whole quality of the automobile is improved, and the social benefit and the economic benefit are obvious.
Description
Technical field
The present invention relates to the cold extrusion production process of a kind of production technology of support pin of clutch driven disk for automobile, particularly a kind of clutch driven disk for automobile.
Background technology
At present, the production technology of support pin of clutch driven disk for automobile is to adopt cold drawn rod iron, after the cut-out, two turning on instrument lathe, chamfering, brill center again, two boring on bench drill then forms seven procedures compositions such as finished product, and the per pass operation is separately produced, a workman can only carry out-procedure processing inefficiency by hand.Therefore product variety is many in addition, big in batches, require height, with existing method production, production efficiency is low, after specification requirement does not reach product design requirement, particularly turning, the middle both ends of the surface depth of parallelism, because of being subjected to anchor clamps, tool wear and man's activity, precision preferably can only be controlled at 0.08mm-0.15mm, and designing requirement differs bigger in 0.05mm.
Summary of the invention
The object of the present invention is to provide a kind of machining accuracy can reach the cold extrusion production process of designing requirement, support pin of clutch driven disk for automobile that production efficiency is high, to solve the weak point that existing fulcrum post production technology exists.
Purpose of the present invention can be achieved through the following technical solutions:
The cold extrusion production process of support pin of clutch driven disk for automobile is characterized in that: this process using multistation Cold header, and include following steps:
A, on the cut-out station of multistation Cold header, adopt to cut off mould the cold drawn circle material of specified diameter be cut to the satisfactory intermediate piece A of length;
B, intermediate piece A is delivered to the punching die that is positioned on first station,, make the intermediate piece B that an end has centre bore the cold pier moulding of middle workpiece A one end centre bore;
C, intermediate piece B is delivered to the punching die that is positioned at second station,, make the intermediate piece C that two ends have centre bore the cold pier moulding of middle workpiece B other end centre bore;
D, the mould that is positioned at the 3rd station is delivered to towards the intermediate piece C of good centre bore in two ends, chamfering and middle part moulding are carried out in two ends, make intermediate piece D;
E, intermediate piece D is delivered to the mould that is positioned at the 4th station, carry out last moulding, make finished product.
In cold-extrusion technology of the present invention, d step operation can be according to the needs of technology, material and allowance, and its middle part moulding can be divided into for two steps or three steps carried out.
After adopting technique scheme, the present invention and existing processing technology relatively have following advantage:
1, multistation Cold header one man operation, per tour can be produced about 100,000, take tens workmans than original production technology and produce several days, just can reach 100,000 and compare, and have improved production efficiency greatly.
2, use cold extrusion production process of the present invention, guaranteed the precision of product and the uniformity of quality.The depth of parallelism of both ends of the surface can be controlled in the 0.03mm particularly, has surpassed the 0.05mm designing requirement.
3, the present invention adopts cold-extrusion technology, and no waste material produces, and material obtains 100% utilization, has improved raw-material utilization rate.
4, the product of producing with cold-extrusion technology of the present invention, after the reality use is assembled on the clutch driven disk for automobile, a qualitatively whole class, society and economic benefit are obvious.
Description of drawings
Fig. 1 is the structural representation of cold extrusion production process intermediate piece A of the present invention.
Fig. 2 is the structural representation of cold extrusion production process intermediate piece B of the present invention.
Fig. 3 is the structural representation of cold extrusion production process intermediate piece C of the present invention.
Fig. 4 is the structural representation of cold extrusion production process intermediate piece D of the present invention.
Fig. 5 is a cold extrusion production process shaped structures schematic diagram of the present invention.
The specific embodiment
Referring to accompanying drawing, the cold extrusion production process of support pin of clutch driven disk for automobile, adopt the multistation Cold header, and include following steps:
A, on the cut-out station of multistation Cold header, adopt cutting off mould is that the cold drawn circle material of Φ 6.7mm cuts into intermediate piece A with diameter, the length of intermediate piece A is 34.4mm;
B, intermediate piece A is delivered to the punching die that is positioned on first station, to the cold pier moulding of middle workpiece A one end Φ 2.56 * 3.5mm centre bore 1, be shaped to intermediate piece B, intermediate piece B is the sired results part of diameter of phi 6.81mm;
C, intermediate piece B is delivered to the punching die that is positioned at second station, to the centre bore 2 of the cold pier moulding of middle workpiece B other end Φ 2.56 * 3.5mm, making two ends, to have internal diameter be Φ 2.56mm, and the degree of depth is the intermediate piece C of 3.5mm centre bore 1,2; Intermediate piece C is the sired results part of diameter of phi 6.84mm;
D, the mould that is positioned at the 3rd station is delivered to towards the intermediate piece C of good centre bore 1,2 in two ends, 1 * 45 and middle part moulding are fallen in two ends, make intermediate piece D;
E, intermediate piece D is delivered to the mould that is positioned at the 4th station, carry out last moulding, make finished product 3.
In above-mentioned cold-extrusion technology, d step operation can be according to the needs of technology, material and allowance, and its middle part moulding can be divided into for two steps or three steps carried out.
All sizes in the above-mentioned specific embodiment are the fulcrum post of a model of cold extrusion production process production of the present invention, and production technology of the present invention can be produced the fulcrum post of various models.
Certainly,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize purpose of the present invention equally for one of ordinary skill in the art.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (2)
1. the cold extrusion production process of support pin of clutch driven disk for automobile is characterized in that: this process using multistation Cold header, and include following steps:
A, on the cut-out station of multistation Cold header, adopt to cut off mould the cold drawn circle material of specified diameter be cut to the satisfactory intermediate piece A of length;
B, intermediate piece A is delivered to the punching die that is positioned on first station,, make the intermediate piece B that an end has centre bore the cold pier moulding of middle workpiece A one end centre bore;
C, intermediate piece B is delivered to the punching die that is positioned at second station,, make the intermediate piece C that two ends have centre bore the cold pier moulding of middle workpiece B other end centre bore;
D, the mould that is positioned at the 3rd station is delivered to towards the intermediate piece C of good centre bore in two ends, chamfering and middle part moulding are carried out in two ends, make intermediate piece D;
E, intermediate piece D is delivered to the mould that is positioned at the 4th station, carry out last moulding, make finished product.
2. cold extrusion production process as claimed in claim 1 is characterized in that: the middle part moulding of described d step operation can be divided into for two steps or three steps carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101113436A CN100402185C (en) | 2005-12-09 | 2005-12-09 | Cold extrusion production process of support pin of clutch driven disk for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101113436A CN100402185C (en) | 2005-12-09 | 2005-12-09 | Cold extrusion production process of support pin of clutch driven disk for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1775411A CN1775411A (en) | 2006-05-24 |
| CN100402185C true CN100402185C (en) | 2008-07-16 |
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ID=36765198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101113436A Expired - Fee Related CN100402185C (en) | 2005-12-09 | 2005-12-09 | Cold extrusion production process of support pin of clutch driven disk for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100402185C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921865B (en) * | 2012-11-10 | 2015-10-28 | 三门通顺铆钉有限公司 | Exempt from punch die and the moulding process thereof of modified spacer pin |
| CN104340088B (en) * | 2013-07-31 | 2017-11-07 | 布洛泽汽车部件制造沃尔兹堡有限公司 | Adjusting means with drive shaft |
| CN105563011A (en) * | 2016-02-19 | 2016-05-11 | 重庆长安工业(集团)有限责任公司 | Stamping process method for revolving body metal extruded part refined blank |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0852530A (en) * | 1994-08-09 | 1996-02-27 | Nippondenso Co Ltd | Cold forging method of flanged hollow part |
-
2005
- 2005-12-09 CN CNB2005101113436A patent/CN100402185C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0852530A (en) * | 1994-08-09 | 1996-02-27 | Nippondenso Co Ltd | Cold forging method of flanged hollow part |
Non-Patent Citations (2)
| Title |
|---|
| 上海通用别克轿车油门踏板总成的国产化研制. 施湘芹.上海汽车，第8期. 2000 |
| 上海通用别克轿车油门踏板总成的国产化研制. 施湘芹.上海汽车，第8期. 2000 * |
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| Publication number | Publication date |
|---|---|
| CN1775411A (en) | 2006-05-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20161209 |