CN103480785A - Cold sizing die for cam ring positioned by ratchets - Google Patents
Cold sizing die for cam ring positioned by ratchets Download PDFInfo
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- CN103480785A CN103480785A CN201310445129.9A CN201310445129A CN103480785A CN 103480785 A CN103480785 A CN 103480785A CN 201310445129 A CN201310445129 A CN 201310445129A CN 103480785 A CN103480785 A CN 103480785A
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- die
- ratchets
- cold sizing
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Abstract
The invention discloses a cold sizing die for a cam ring positioned by ratchets. The cold sizing die comprises an upper die plate, a guide sleeve, a guide pillar, an upper die, a lower die and a bottom die holder, wherein the upper die plate, the guide sleeve, the guide pillar and the bottom die holder jointly form a die set. The lower die is mounted at the center of the upper end face of the bottom die holder, a die cavity of the lower die for containing a blank is open upwards, and cavities for containing three cams of the blank are formed in the bottom of the die cavity. The upper die is mounted on the bottom face of the upper die plate, the upper die and the lower die are coaxially opposite, a die head of the upper die is thick-walled, round and tubular, an outer circle of the die head is in clearance fit with the die cavity of the lower die, and the ratchets are uniformly distributed on the downward end face of the die head. When cold sizing is performed, one face of the normal-temperature blank with the cams is flatly placed downwards into the die cavity of the lower die, a pressing head of a pressure machine drives the upper die plate and the upper die positioned on the upper portion to apply pressure downwards along the guide pillar, and the bank is coldly extruded out of the ratchets in the cold sizing die. The ratchets on the cam ring are extruded by the cold sizing die, and the cold sizing die is high in production efficiency, fine in accuracy and stable in quality.
Description
Technical field
The present invention relates to a kind of forging die structure, specifically, the present invention relates to a kind of cam ring cold-finish mould with the ratchet location.
Background technology
Cam ring in automotive transmission belongs to precision component, and its architectural feature is uniform three cams of one side, and another side is provided with three cam coaxials and the ratchet of higher position precision is arranged.For cam ring processing, at first industry conventional fabrication processes is made three cams by forge hot and is shaped, and then take three cams as the origin reference location ratchet of milling another side indent sequentially again.Although this kind of substep processing technology is simple, ripe, can reach prospective quality.But, press tab order milling ratchet efficiency too low, and intensity does not reach requirement.Production cost is large, with the batch production beat, does not conform to.
Summary of the invention
The present invention, mainly for the inefficient problem of prior art substep milling ratchet, proposes a kind of cam ring cold-finish mould with the ratchet location, and this mould structure is simple, making is easy, compacting efficiency is high, forming quality stable.
The present invention is achieved through the following technical solutions technical goal.
With the cam ring cold-finish mould of ratchet location, it comprises cope match-plate pattern, fairlead, guide pillar, upper die and lower die, bed die seat.Described cope match-plate pattern, fairlead and guide pillar, the common mould bases that forms upper and lower relative sliding of bed die seat.Described bed die seat upper surface location and installation counterdie placed in the middle, the matrix cavity that counterdie is taken blank in is upward uncovered, is provided with the cavity of taking three cams of blank at the bottom of chamber.Cope match-plate pattern bottom surface location and installation patrix, patrix is coaxially relative with counterdie.Its improvements are: the die head of described patrix is the thick-walled tube shape, the matrix cavity matched in clearance of its cylindrical and counterdie, the uniform ratchet towards lower surface.
The present invention compared with prior art, has following good effect:
The cold-finish mode structure of 1, keeping straight on up and down is simple, is shaped easily, and production efficiency is high;
2, ratchet is by cold-finish mould extrusion molding, and precision is high, steady quality;
3, adopt the ratchet of cold-finish mould extruding still to retain the original metal fibrous tissue of blank, blank facilitates metal structure finer and close after extruding, is conducive to further improve the intensity of ratchet and whole cam ring.
The accompanying drawing explanation
Fig. 1 is agent structure generalized section of the present invention.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Shown in Fig. 1, with the cam ring cold-finish mould of ratchet location, it comprises cope match-plate pattern 1, fairlead 2, guide pillar 3, patrix 4, counterdie 5, bed die seat 6.Described cope match-plate pattern 1, fairlead 2 and guide pillar 3, the common mould bases that forms upper and lower relative sliding of bed die seat 6, in the present embodiment, bed die seat 6 horizontal are on press bench, and cope match-plate pattern 1 moves up and down with the pressure head of forcing press.Described bed die seat 6 upper surface location and installation counterdies 5 placed in the middle, the matrix cavity that counterdie 5 is taken blank 7 in is upward uncovered, is provided with the cavity of taking 7 three cams of blank at the bottom of chamber.Cope match-plate pattern 1 bottom surface location and installation patrix 4, patrix 4 is coaxial relative with counterdie 5.In the present embodiment, the die head of patrix 4 is the thick-walled tube shape, the matrix cavity matched in clearance of its cylindrical and counterdie 5, the uniform ratchet towards lower surface.
In the present embodiment, the blank 7 of cold-finish processing to be done is the semi-finished product through hot forging forming, and the one side that wherein is provided with cam just is swaged into shape, and another side is plane, treats that further cold-extruded extrudes ratchet.During the cold-finish operation, first have one of cam to face down the blank of normal temperature 7 and keep flat in the matrix cavity of counterdie 5, be in upper cope match-plate pattern 1 and patrix 4 and driven by press ram, exert pressure downwards along guide pillar 3, blank 7 is extruded ratchet by cold-extruded in the cold-finish mould.Ratchet on cam ring is by cold-finish mould extrusion molding, and production efficiency is high, and precision is good, steady quality.Benefit on the other hand is through the ratchet of cold-finish mould extruding, still retains the original metal fibrous tissue of blank 7 and metal structure finer and close, is conducive to further improve the intensity of ratchet and whole cam ring.
Claims (1)
1. the cam ring cold-finish mould with ratchet location, it comprises cope match-plate pattern (1), fairlead (2), guide pillar (3), patrix (4), counterdie (5), bed die seat (6); Described cope match-plate pattern (1), fairlead (2) and guide pillar (3), bed die seat (6) form the mould bases of upper and lower relative sliding jointly; Described bed die seat (6) upper surface location and installation counterdie placed in the middle (5), the matrix cavity that counterdie (5) is taken blank (7) in is upward uncovered, is provided with the cavity of taking (7) three cams of blank at the bottom of chamber; Cope match-plate pattern (1) bottom surface location and installation patrix (4), patrix (4) is coaxial relative with counterdie (5); It is characterized in that: the die head of described patrix (4) is the thick-walled tube shape, the matrix cavity matched in clearance of its cylindrical and counterdie (5), the uniform ratchet towards lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445129.9A CN103480785A (en) | 2013-09-27 | 2013-09-27 | Cold sizing die for cam ring positioned by ratchets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445129.9A CN103480785A (en) | 2013-09-27 | 2013-09-27 | Cold sizing die for cam ring positioned by ratchets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103480785A true CN103480785A (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310445129.9A Pending CN103480785A (en) | 2013-09-27 | 2013-09-27 | Cold sizing die for cam ring positioned by ratchets |
Country Status (1)
| Country | Link |
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| CN (1) | CN103480785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520390A (en) * | 2017-09-30 | 2017-12-29 | 江苏太平洋精锻科技股份有限公司 | Double floating type lock ring cold closed-die forging one step forming mould |
| CN112846066A (en) * | 2021-03-05 | 2021-05-28 | 苏州市旭飞精密机械有限公司 | Extrusion processing technology of traction ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747803A (en) * | 1980-09-05 | 1982-03-18 | Toyota Motor Corp | Die for chamfering and sizing of tooth surface of gear |
| CN201889387U (en) * | 2010-12-07 | 2011-07-06 | 重庆秋田齿轮有限责任公司 | Mold structure for forming forging billet of motorcycle convex-claw gear |
| CN102728760A (en) * | 2012-07-03 | 2012-10-17 | 北京有色金属研究总院 | Aluminum alloy rotor forming die and method thereof |
| KR101288853B1 (en) * | 2012-07-25 | 2013-07-23 | 한국기계연구원 | Cold forging mold for sector tooth of seat recliner and method for manufacturing sector tooth using thereof |
| CN203526437U (en) * | 2013-09-27 | 2014-04-09 | 江苏太平洋精锻科技股份有限公司 | Cam ring cold finishing die with ratchets |
-
2013
- 2013-09-27 CN CN201310445129.9A patent/CN103480785A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747803A (en) * | 1980-09-05 | 1982-03-18 | Toyota Motor Corp | Die for chamfering and sizing of tooth surface of gear |
| CN201889387U (en) * | 2010-12-07 | 2011-07-06 | 重庆秋田齿轮有限责任公司 | Mold structure for forming forging billet of motorcycle convex-claw gear |
| CN102728760A (en) * | 2012-07-03 | 2012-10-17 | 北京有色金属研究总院 | Aluminum alloy rotor forming die and method thereof |
| KR101288853B1 (en) * | 2012-07-25 | 2013-07-23 | 한국기계연구원 | Cold forging mold for sector tooth of seat recliner and method for manufacturing sector tooth using thereof |
| CN203526437U (en) * | 2013-09-27 | 2014-04-09 | 江苏太平洋精锻科技股份有限公司 | Cam ring cold finishing die with ratchets |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520390A (en) * | 2017-09-30 | 2017-12-29 | 江苏太平洋精锻科技股份有限公司 | Double floating type lock ring cold closed-die forging one step forming mould |
| CN112846066A (en) * | 2021-03-05 | 2021-05-28 | 苏州市旭飞精密机械有限公司 | Extrusion processing technology of traction ring |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140101 |