CN102861847A - Warm forging finish-forging die of rzeppa universal joint bell housing - Google Patents

Warm forging finish-forging die of rzeppa universal joint bell housing Download PDF

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Publication number
CN102861847A
CN102861847A CN2011101876796A CN201110187679A CN102861847A CN 102861847 A CN102861847 A CN 102861847A CN 2011101876796 A CN2011101876796 A CN 2011101876796A CN 201110187679 A CN201110187679 A CN 201110187679A CN 102861847 A CN102861847 A CN 102861847A
Authority
CN
China
Prior art keywords
die
forging
diameter
punch
universal joint
Prior art date
Application number
CN2011101876796A
Other languages
Chinese (zh)
Inventor
万永福
张太良
赵年龙
张如亮
周新民
Original Assignee
江苏威鹰机械有限公司
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 江苏威鹰机械有限公司 filed Critical 江苏威鹰机械有限公司
Priority to CN2011101876796A priority Critical patent/CN102861847A/en
Publication of CN102861847A publication Critical patent/CN102861847A/en

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Abstract

The invention discloses a warm forging finish-forging die of a rzeppa universal joint bell housing. The warm forging finish-forging die comprises a male die, a female die, a pressure padding block and an ejector. The ejector is arranged at the bottom of the female die, the male die is composed of cylinders with diminishing diameter and transition sections among the cylinders, outer walls of the cylinders of the male die are evenly provided with six circular arc protruding blocks, and a male die head is a cambered surface structure. The outer walls of the cylinders among the circular arc protruding blocks of the male die are further provided with groove extruding blocks, an inner cavity of the female die is provided with inverted circular truncated cones, cylinder cavities with incremental diameter and transition cavities among the cylinder cavities from bottom to top, and the diameter of the largest cylinder of the male die arranged in the inner cavity of the female die is smaller than the largest diameter of the inner cavity of the female die. By adopting the warm forging finish-forging die and utilizing a warm forging and cold forging combined forging plastic molding technology, rzeppa universal joint bell housing refined forge pieces are produced, a production period is shortened, the machine tool processing amount is decreased, and metal resources are saved.

Description

Ball basket universal joint bell housing warm forging finisher
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 ball basket universal joint bell housing warm forging finisher 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 that the equipment high in automaticity, that specificity is strong is processed, 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 ball basket universal joint bell housing warm forging finisher, mainly solves existing processing technology, and machine tool drops into more, and machining has been wasted metal material, and labor productivity is low, the production cycle is long, the technical problem that processing cost is high; Adopt this warm forging finisher, 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: ball basket universal joint bell housing warm forging finisher, comprise punch, die, pressure filling block and ejector, described ejector is located at the bottom of die, the cylinder that described punch is successively decreased by diameter and the changeover portion between them consist of, evenly be provided with six circular arc projections on the cylindrical body outer wall of described punch, described punch head is globoidal structure, also be provided with crowded geosynclinal block on the cylindrical body outer wall between the described punch circular arc projection, the cylinder cavity that the inner chamber of described die increases progressively for inverted round stage and diameter from bottom to top and the adapter cavity between them, described punch places the maximum cylindrical diameter of die inner chamber less than the maximum gauge of die inner chamber.
The invention has the beneficial effects as follows: the present invention compared with prior art have advantages of with short production cycle, 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,
Fig. 2 is the upward view of embodiment of the invention Fig. 1 convex mould.
Sequence number among the figure: 1, punch; 2, die; 3, pressure filling block; 4, ejector; 5, circular arc projection, 6, squeeze geosynclinal block, 7, the punch head.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, shown in Figure 2, a kind of ball basket universal joint bell housing warm forging finisher, comprise punch 1, die 2, pressure filling block 3 and ejector 4, described ejector 4 is located at the bottom of die 2, the cylinder that described punch 1 is successively decreased by diameter and the changeover portion between them consist of, evenly be provided with six circular arc projections 5 on the cylindrical body outer wall of described punch 1, described punch head 7 is globoidal structure, also be provided with on the cylindrical body outer wall between the described punch circular arc projection 5 and squeeze geosynclinal block 6, the cylinder cavity that the inner chamber of described die 2 increases progressively for inverted round stage and diameter from bottom to top and the adapter cavity between them, described punch 1 places the maximum cylindrical diameter of die 2 inner chambers less than the maximum gauge of die 2 inner chambers.
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 (1)

1. ball basket universal joint bell housing warm forging finisher, comprise punch ⑴, die ⑵, pressure filling block ⑶ and ejector ⑷, described ejector ⑷ is located at the bottom of die ⑵, the cylinder that described punch ⑴ is successively decreased by diameter and the changeover portion between them consist of, evenly be provided with six circular arc projection ⑸ on the cylindrical body outer wall of described punch ⑴, described punch head ⑺ is globoidal structure, it is characterized in that: also be provided with on the cylindrical body outer wall between the described punch circular arc projection ⑸ and squeeze geosynclinal block ⑹, the cylinder cavity that the inner chamber of described die ⑵ increases progressively for inverted round stage and diameter from bottom to top and the adapter cavity between them, described punch ⑴ places the maximum cylindrical diameter of die ⑵ inner chamber less than the maximum gauge of die ⑵ inner chamber.
CN2011101876796A 2011-07-06 2011-07-06 Warm forging finish-forging die of rzeppa universal joint bell housing CN102861847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101876796A CN102861847A (en) 2011-07-06 2011-07-06 Warm forging finish-forging die of rzeppa universal joint bell housing

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Application Number Priority Date Filing Date Title
CN2011101876796A CN102861847A (en) 2011-07-06 2011-07-06 Warm forging finish-forging die of rzeppa universal joint bell housing

Publications (1)

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CN102861847A true CN102861847A (en) 2013-01-09

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CN2011101876796A CN102861847A (en) 2011-07-06 2011-07-06 Warm forging finish-forging die of rzeppa universal joint bell housing

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852454B2 (en) * 1979-12-24 1983-11-22 Komatsu Mfg Co Ltd
CN2219168Y (en) * 1995-05-05 1996-02-07 营口市东方汽车锻造厂 Constant-velocity precision forging die for cylinder shell of universal joint
JP2002224788A (en) * 2001-02-01 2002-08-13 Toyota Motor Corp Method for forging inner race of constant-velocity universal joint
US20030168126A1 (en) * 2001-06-28 2003-09-11 Tsukashi Oohama Outer ring member for constant velocity joint and method of manufacturing the member
JP2008188633A (en) * 2007-02-05 2008-08-21 Ntn Corp Apparatus and method for manufacturing outer member for constant velocity universal joint
CN101733352A (en) * 2008-11-14 2010-06-16 江苏威鹰机械有限公司 Blank-making movable matrix of pot shell of flange type universal joint
CN101733350A (en) * 2008-11-14 2010-06-16 江苏威鹰机械有限公司 Production technology for blanking by using a through-hole type universal joint finish forging pot shell capable of moving axially
CN202174201U (en) * 2011-07-06 2012-03-28 江苏威鹰机械有限公司 Warm forging and finish forging die for ball basket universal joint bell housing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852454B2 (en) * 1979-12-24 1983-11-22 Komatsu Mfg Co Ltd
CN2219168Y (en) * 1995-05-05 1996-02-07 营口市东方汽车锻造厂 Constant-velocity precision forging die for cylinder shell of universal joint
JP2002224788A (en) * 2001-02-01 2002-08-13 Toyota Motor Corp Method for forging inner race of constant-velocity universal joint
US20030168126A1 (en) * 2001-06-28 2003-09-11 Tsukashi Oohama Outer ring member for constant velocity joint and method of manufacturing the member
JP2008188633A (en) * 2007-02-05 2008-08-21 Ntn Corp Apparatus and method for manufacturing outer member for constant velocity universal joint
CN101733352A (en) * 2008-11-14 2010-06-16 江苏威鹰机械有限公司 Blank-making movable matrix of pot shell of flange type universal joint
CN101733350A (en) * 2008-11-14 2010-06-16 江苏威鹰机械有限公司 Production technology for blanking by using a through-hole type universal joint finish forging pot shell capable of moving axially
CN202174201U (en) * 2011-07-06 2012-03-28 江苏威鹰机械有限公司 Warm forging and finish forging die for ball basket universal joint bell housing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
季微微等: ""钟形壳成形工艺改进"", 《模具技术》, no. 4, 31 August 2010 (2010-08-31), pages 40 - 45 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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Application publication date: 20130109

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