CN102861848A - Cold-forging molded concave die of bell shell of ball-cage type universal joint - Google Patents
Cold-forging molded concave die of bell shell of ball-cage type universal joint Download PDFInfo
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- CN102861848A CN102861848A CN2011101877197A CN201110187719A CN102861848A CN 102861848 A CN102861848 A CN 102861848A CN 2011101877197 A CN2011101877197 A CN 2011101877197A CN 201110187719 A CN201110187719 A CN 201110187719A CN 102861848 A CN102861848 A CN 102861848A
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Abstract
The invention discloses a cold-forging molded concave die of a bell shell of a ball-cage type universal joint, comprising a convex die, a concave die, a pressure filling block and an ejector. The ejector is arranged on the bottom part of the concave die. The cold-forging molded concave die is characterized in that an inner chamber of the concave die is provided with an inversed cone and a column chamber from bottom to top; the convex die is of a drum shaped structure; the convex model comprises at least three movable blocks and a middle core bar; and the movable blocks are arranged at the four sides of the middle core bar and meshed with the middle core bar. According to the cold-forging concave die of the bell shell of the ball-cage type universal joint, the combination of the forging plastic molding technology of combining the warm-forging plastic molding technology and the cold-forging plastic molding technology is adopted to manufacture the bell shell of the ball-cage type universal joint, the production period is shortened, the work amounts of the machine tool are reduced, and the metal resources are saved.
Description
Technical field
The present invention relates to a kind of mould, especially relate to a kind of by metal flowing forming rule, adopt warm forging and cold forging associating Forging Plasticity forming technique, elder generation's jumping-up is made the preformed blank, backward extrusion forms alley in the moulding impression again, and last cold forging plastic forming forms the cold-forging forming female die for ball basket universal joint bell housing of Internal Spherical Surface.
Background technology
Constant velocity cardan joint is when main, when driven shaft has angular displacement, can transmit the mechanism of motion and torque, the structure of rzeppa joint of the prior art is that clutch can and inner race are equipped with six raceway grooves, and six groove curvature centers of clutch can and six groove curvature centers of inner race, be positioned at respectively the ball cage type retainer, both sides, spherical outside surface center, and eccentric throw all equates, clutch can is a vital part of rzeppa joint, the diameter dimension required precision of its alley is high, the precision of its alley arc size just is directly connected to the fit-state of the interior steel ball of alley and alley, and then have influence on its service life, its technical characterstic is mainly reflected on its internal structure, its inside is comprised of vertical equally distributed six ball tracks on Internal Spherical Surface and the spherical, and six ball track centers become two eccentric structures with Internal Spherical Surface.Its crudy precision has vital impact for the serviceability of constant velocity cardan joint, especially the crudy precision of six raceway grooves.Add at turnning and milling processing and mill and to require man-hour to be controlled, make it to meet Product Precision to bell-shaped housing ball groove.Processing clutch can six raceway groove techniques generally have two kinds of methods: a kind of is to process at the equipment that automaticity is high, specificity is strong, and the external producer of this technique adopts often, and quality can guarantee, but equipment is expensive, investment is large, and mould replacing time is long, and variety renovation efficient is low.Another kind is on 2110 general lathes, realizes the processing of workpiece by six raceway groove processing unit (plant)s of special use, and the method automaticity is low, is by manually finishing waving of workpiece fully.The method is difficult to guarantee the crudy of part, and workman's labour intensity is larger, and because the clutch can complex structure causes processing difficulties, processing cost is high.The transmission system of the whole world car overwhelming majority all adopts this universal joint as the drive disk assembly of key, manufacturing firm all adopts inner chamber precision forging blank technology both at home and abroad at present, can satisfy required precision like this, reduce again manufacturing cost and cycle, also met the trend of world today's development of manufacturing simultaneously.Prior art ball basket universal joint bell housing production and processing technology mainly is: fracture → heating → shank open die forging pulling → jumping-up → inner chamber moulding, through annealing, then adopt the method for machine tooling, that is: rough turn, rough mill, finish-milling, correct grinding.This type of processing technology, machine tool drops into more, and machining has been wasted metal material, and labor productivity is low, the production cycle is long, and processing cost is also high.
Summary of the invention
Purpose of the present invention provides a kind of cold-forging forming female die for ball basket universal joint bell housing, mainly solve existing processing technology, machine tool drops into more, and machining has been wasted metal material, labor productivity is low, the production cycle is long, the technical problem that processing cost is high; Adopt this cold-forging forming female die, utilize warm forging and cold forging associating Forging Plasticity forming technique to produce Rzeppa universal joint bell-shaped shell precision forge piece, shortened the production cycle, reduced the workload of machine tooling, saved metals resources, can satisfy required precision, reduce again manufacturing cost and cycle, also meet the trend of world today's development of manufacturing simultaneously.
The present invention adopts following technical scheme: cold-forging forming female die for ball basket universal joint bell housing, comprise punch, die, pressure filling block and ejector, described ejector is located at the bottom of die, it is characterized in that: the inner chamber of described die is inverted round stage and cylinder cavity from bottom to top, described punch is dolioform structure, described punch is by at least three movable blocks and an intermediate core bar construction, and plug matched all around and with middle plug in the middle of described movable block was arranged on.
Plug is the inverted round stage structure in the middle of described.
Plug is that cross section is non-from top to bottom and increases progressively the symmetrical polygonized structure of trend or the combination of symmetrical polygonized structure in the middle of described, or is non-the increase progressively symmetrical polygonized structure of trend and the combination of circular configuration from top to bottom for cross section.
Described movable block is three.
The invention has the beneficial effects as follows: the present invention compared with prior art has advantage with short production cycle, that production cost is low, reduced the workload of machine tooling, saved metals resources, can satisfy required precision, reduce again manufacturing cost and cycle, also met the trend of world today's development of manufacturing simultaneously.And saved metals resources, improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Sequence number among the figure: 1, punch; 2, die; 3, pressure filling block; 4, ejector; 5, movable block; 6, middle plug.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to shown in Figure 1, a kind of cold-forging forming female die for ball basket universal joint bell housing, comprise punch 1, die 2, pressure filling block 3 and ejector 4, described ejector 4 is located at the bottom of die 2, the inner chamber of described die 2 is inverted round stage and cylinder cavity from bottom to top, described punch 1 is dolioform structure, described punch 1 is made of three movable blocks 5 and a middle plug 6, described movable block 5 is arranged on matching of middle plug 6 all around and with middle plug 6, and described middle plug 6 is the structure that cylinder and inverted round stage combine.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not consist of limiting the scope of the invention; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present invention above scheme being done that does not break away from technical solution of the present invention all still belongs within the protection domain of the present invention.
Claims (4)
1. cold-forging forming female die for ball basket universal joint bell housing, comprise punch ⑴, die ⑵, pressure filling block ⑶ and ejector ⑷, described ejector ⑷ is located at the bottom of die ⑵, it is characterized in that: the inner chamber of described die ⑵ is inverted round stage and cylinder cavity from bottom to top, described punch ⑴ is dolioform structure, described punch ⑴ is made of at least three movable block ⑸ and a middle plug ⑹, and plug ⑹'s matched all around and with middle plug ⑹ in the middle of described movable block ⑸ was arranged on.
2. cold-forging forming female die for ball basket universal joint bell housing according to claim 1 is characterized in that: plug ⑹ is the inverted round stage structure in the middle of described.
3. cold-forging forming female die for ball basket universal joint bell housing according to claim 1, it is characterized in that: plug ⑹ is that cross section is non-from top to bottom and increases progressively the symmetrical polygonized structure of trend or the combination of symmetrical polygonized structure in the middle of described, or is non-the increase progressively symmetrical polygonized structure of trend and the combination of circular configuration from top to bottom for cross section.
4. cold-forging forming female die for ball basket universal joint bell housing according to claim 1, it is characterized in that: described movable block ⑸ is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101877197A CN102861848A (en) | 2011-07-06 | 2011-07-06 | Cold-forging molded concave die of bell shell of ball-cage type universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101877197A CN102861848A (en) | 2011-07-06 | 2011-07-06 | Cold-forging molded concave die of bell shell of ball-cage type universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102861848A true CN102861848A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101877197A Pending CN102861848A (en) | 2011-07-06 | 2011-07-06 | Cold-forging molded concave die of bell shell of ball-cage type universal joint |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240383A (en) * | 2013-05-08 | 2013-08-14 | 丹阳市天合精锻有限公司 | Hollow forging method of universal-joint slip yoke and special forging tool |
| CN103381463A (en) * | 2013-07-11 | 2013-11-06 | 江苏森威精锻有限公司 | Cardan joint warm forging die capable of preventing material jumping |
| CN103599992A (en) * | 2013-11-18 | 2014-02-26 | 江苏森威精锻有限公司 | Steering-yoke ear-reducing forming die and assembling method thereof |
| CN105689612A (en) * | 2016-03-12 | 2016-06-22 | 洛阳华冠齿轮股份有限公司 | Near-net forming forging method for novel straight-tooth bevel gear tooth-profile die |
| CN107913967A (en) * | 2017-07-18 | 2018-04-17 | 江苏大洋精锻有限公司 | A kind of clutch can shaping dies and its forming technology |
| CN108602111A (en) * | 2016-02-16 | 2018-09-28 | Ntn株式会社 | The forging method of the outside joint member of constant-speed universal coupling |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369558A (en) * | 1980-09-10 | 1983-01-25 | Toyota Jidosha Kogyo Kabushiki Kaisha | Outer race working method and apparatus therefor |
| FR2526687A1 (en) * | 1982-05-13 | 1983-11-18 | Luchaire Sa | TOOL FOR FORMING AND CALIBRATION IN PARTICULAR FOR BOWLS OF HOMOCINETIC JOINTS |
| US4610155A (en) * | 1982-10-14 | 1986-09-09 | Pfd Limited | Manufacture of article having undercut internal surface |
| JPH01104441A (en) * | 1987-07-03 | 1989-04-21 | Aida Eng Ltd | Manufacturing equipment for equal velocity joint and its similar item |
| JPH01180746A (en) * | 1987-12-28 | 1989-07-18 | Aichi Steel Works Ltd | Method for forging projection part of forging part having u or v shaped lug part and forging die usable therefor |
| CN2219168Y (en) * | 1995-05-05 | 1996-02-07 | 营口市东方汽车锻造厂 | Precision Forging Die for Constant Velocity Universal Joint Cylindrical Shell |
| JPH10156478A (en) * | 1996-11-29 | 1998-06-16 | Musashi Seimitsu Ind Co Ltd | Forging method of cup-like housing having deformed part in outer periphery |
| CN2823658Y (en) * | 2005-08-17 | 2006-10-04 | 宁波万航实业有限公司 | Birfield ball-joint driving shaft |
-
2011
- 2011-07-06 CN CN2011101877197A patent/CN102861848A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4369558A (en) * | 1980-09-10 | 1983-01-25 | Toyota Jidosha Kogyo Kabushiki Kaisha | Outer race working method and apparatus therefor |
| FR2526687A1 (en) * | 1982-05-13 | 1983-11-18 | Luchaire Sa | TOOL FOR FORMING AND CALIBRATION IN PARTICULAR FOR BOWLS OF HOMOCINETIC JOINTS |
| US4610155A (en) * | 1982-10-14 | 1986-09-09 | Pfd Limited | Manufacture of article having undercut internal surface |
| JPH01104441A (en) * | 1987-07-03 | 1989-04-21 | Aida Eng Ltd | Manufacturing equipment for equal velocity joint and its similar item |
| JPH01180746A (en) * | 1987-12-28 | 1989-07-18 | Aichi Steel Works Ltd | Method for forging projection part of forging part having u or v shaped lug part and forging die usable therefor |
| CN2219168Y (en) * | 1995-05-05 | 1996-02-07 | 营口市东方汽车锻造厂 | Precision Forging Die for Constant Velocity Universal Joint Cylindrical Shell |
| JPH10156478A (en) * | 1996-11-29 | 1998-06-16 | Musashi Seimitsu Ind Co Ltd | Forging method of cup-like housing having deformed part in outer periphery |
| CN2823658Y (en) * | 2005-08-17 | 2006-10-04 | 宁波万航实业有限公司 | Birfield ball-joint driving shaft |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240383A (en) * | 2013-05-08 | 2013-08-14 | 丹阳市天合精锻有限公司 | Hollow forging method of universal-joint slip yoke and special forging tool |
| CN103381463A (en) * | 2013-07-11 | 2013-11-06 | 江苏森威精锻有限公司 | Cardan joint warm forging die capable of preventing material jumping |
| CN103381463B (en) * | 2013-07-11 | 2016-03-30 | 江苏森威精锻有限公司 | A kind of universal joint warm forging die of bounce-proof |
| CN103599992A (en) * | 2013-11-18 | 2014-02-26 | 江苏森威精锻有限公司 | Steering-yoke ear-reducing forming die and assembling method thereof |
| CN103599992B (en) * | 2013-11-18 | 2016-02-24 | 江苏森威精锻有限公司 | A kind of ear's diameter-reducing formation mould of steering yoke and assembly method thereof |
| CN108602111A (en) * | 2016-02-16 | 2018-09-28 | Ntn株式会社 | The forging method of the outside joint member of constant-speed universal coupling |
| CN105689612A (en) * | 2016-03-12 | 2016-06-22 | 洛阳华冠齿轮股份有限公司 | Near-net forming forging method for novel straight-tooth bevel gear tooth-profile die |
| CN107913967A (en) * | 2017-07-18 | 2018-04-17 | 江苏大洋精锻有限公司 | A kind of clutch can shaping dies and its forming technology |
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Application publication date: 20130109 |