CN103230952B - Cold extrusion device of taper ratchets - Google Patents

Cold extrusion device of taper ratchets Download PDF

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Publication number
CN103230952B
CN103230952B CN201310176509.7A CN201310176509A CN103230952B CN 103230952 B CN103230952 B CN 103230952B CN 201310176509 A CN201310176509 A CN 201310176509A CN 103230952 B CN103230952 B CN 103230952B
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Prior art keywords
ratchet
tapering
cover plate
mould
punch
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CN201310176509.7A
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CN103230952A (en
Inventor
陈利忠
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WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
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WUXI SUPERHUMAN GEAR COLD EXTRUSION CO Ltd
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Abstract

The invention relates to a cold extrusion device of taper ratchets. A die ring is fixed at a top plate of a die set; a rotation adjuster of a ratchet disc and the ratchet disc are arranged in the die ring; the rotation adjuster of the ratchet disc is connected and fixed with the die ring; the ratchet disc can rotate freely in the die ring; a first spring is arranged below the ratchet disc; first circumferential ratchet teeth of the lower end face of the rotation adjuster of the ratchet disc are meshed with second circumferential ratchet teeth of the upper end face of the ratchet disc; a taper ratchet punch penetrates into the rotation adjuster of the ratchet disc, the ratchet disc, the first spring and a guide sleeve and the upper end of the taper ratchet punch is connected with a pressure head; a bearing, which is matched with the taper ratchet punch for locating, is arranged in a hole in the upper section of the guide sleeve, a second spring is arranged in a hole in the middle section of the guide sleeve, and a hole in the lower section of the guide sleeve is matched with the taper ratchet punch for locating; a pedestal mechanism is arranged below the die ring; a cold extrusion die is arranged in the pedestal mechanism; and an ejector rod penetrates into a rod hole in the center of the pedestal mechanism. The cold extrusion device disclosed by the invention has the advantages of ingeniousness and reasonableness in structure, stability in the performance of the processed taper ratchet teeth, large bearing capacity and long service life.

Description

Tapering ratchet cold extrusion device
Technical field
The present invention relates to a kind of tapering ratchet cold extrusion device, specifically a kind of device of making tapering hook tooth with cold extrusion form, belongs to auto parts and components processing technique field.
Background technology
Tapering ratchet is applied to tapering Ratcheting one-way clutch, is the important spare part in automobile engine, and the performance and used life of tapering ratchet has very important impact to automobile engine.Present tapering ratchet processing mode is all machining, mainly there is the defects such as tapering hook tooth contact-making surface is short, operating noise large, poor stability, easily there is broken teeth, skidding at engine starting process, generally only have the service life of 30000 times for starter.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of tapering ratchet cold extrusion device is provided, its structure is ingenious rationally, process operation is convenient, adopt the tapering hook tooth stable performance of this device processing, bearing capacity is large, and intensity is large, long service life, can significantly improve the running of engine.
According to technical scheme provided by the invention: tapering ratchet cold extrusion device, is characterized in that: comprise mould bases, ratchet cover plate rotation regulator, the ratchet cover plate, mould circle, the first spring, bearing, tapering ratchet punch, fairlead, the second spring, cold extrusion die, knock-pin and base mechanism; Mould circle is fixed on mould bases top board, and ratchet cover plate rotation regulator and the ratchet cover plate are installed in mould circle, and ratchet cover plate rotation regulator is connected and fixed by pin and mould circle, and the ratchet cover plate can freely rotate in mould circle, and the first spring is equipped with in ratchet cover plate below; Described ratchet cover plate rotation regulator lower surface is provided with the first circumferential hook tooth, and described ratchet cover plate upper surface is provided with second week to hook tooth, and described second week is intermeshing to hook tooth and the first circumferential hook tooth; The center of described mould circle bottom is provided with through hole, in this through hole, fairlead is housed, described tapering ratchet punch is located in ratchet cover plate rotation regulator, the ratchet cover plate, the first spring and fairlead, tapering ratchet punch upper end is connected with the pressure head in mould bases top board, and tapering ratchet punch lower end is for pushing workpiece; Described ratchet cover plate inner hole wall is provided with axial groove, on described tapering ratchet punch outer wall, key is housed, and described tapering ratchet punch and the ratchet cover plate are by key connecting, and tapering ratchet punch can move axially and can not rotate in ratchet cover plate endoporus; The endoporus of described fairlead is divided into upper sector hole, middle sector hole and lower sector hole by internal diameter size difference, described upper sector hole is in-built bearing, described bearing coordinates location with tapering ratchet punch, described middle sector hole is in-built the second spring, described second spring one end connects tapering ratchet punch, the second spring other end connects fairlead, and described lower sector hole directly coordinates location with tapering ratchet punch; Described base mechanism is arranged on mould circle below, and base mechanism is by mould framing plate rest; Described cold extrusion die is contained in base mechanism, and cold extrusion die is interior for being contained in workpiece to be processed; The center of described base mechanism is provided with bar hole, and described knock-pin is bottom-up to be located in bar hole, and knock-pin top is just to workpiece.
As a further improvement on the present invention, described base mechanism comprises circle stress, stationary magazine creel, cushion block and cover plate, described stationary magazine creel is arranged on mould circle below, stationary magazine creel is fixed on mould framing plate, circle stress is arranged in stationary magazine creel and is fixed by cover plate, circle stress bottom is lined with the pad component being made up of at least one cushion block, and described pad component is by mould framing plate rest; Described cold extrusion die is contained in the centre bore of circle stress; Described bar hole is arranged on the center of pad component.
As a further improvement on the present invention, described mould bases comprises mould framing plate, connecting rod, connecting cylinder and mould bases top board, and described connecting cylinder is fixedly mounted on mould bases top board, and described connecting rod is fixedly mounted on mould framing plate, and connecting rod and connecting cylinder socket-connect.
As a further improvement on the present invention, described fairlead is fixed on mould circle by clamp ring, and clamp ring center is provided with installing hole, and fairlead support is in this installing hole, and clamp ring upper inside wall and mould circle bottom outer wall are threaded connection.
As a further improvement on the present invention, described knock-pin is provided with limited block, and the corresponding cushion block in described pad component is provided with spacing hole, and described limited block matches with spacing hole, to limit the shift motion of knock-pin.
As a further improvement on the present invention, in described pad component, the bottom of top cushion block is provided with alignment pin, and the top of below cushion block is provided with the locating hole coordinating with alignment pin.
compared with prior art, advantage is in the present invention:structure of the present invention is ingenious rationally, and process operation is convenient, adopts the tapering hook tooth stable performance of this device processing, and bearing capacity is large, and intensity is large, and long service life can significantly improve the running of engine.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure, the tapering ratchet cold extrusion device in embodiment is mainly made up of parts such as ratchet cover plate rotation regulator 1, the ratchet cover plate 2, mould circle 3, the first spring 4, bearing 5, the first spring 6, tapering ratchet punch 7, fairlead 8, the second spring 9, circle stress 10, cold extrusion die 11, stationary magazine creel 13, cushion block 14, knock-pin 15, cover plate 18, mould framing plate 19, connecting rod 20, connecting cylinder 21 and mould bases top boards 22.
As shown in Figure 1, mould circle 3 is screwed on mould bases top board 22, and ratchet cover plate rotation regulator 1 and the ratchet cover plate 2 are installed in mould circle 3, and ratchet cover plate rotation regulator 1 is connected and fixed by pin 23 and mould circle 3, the ratchet cover plate 2 can freely rotate mould circle 3 is interior, and the first spring 4 is equipped with in the ratchet cover plate 2 belows; Described ratchet cover plate rotation regulator 1 lower surface is provided with the first circumferential hook tooth, and the described ratchet cover plate 2 upper surfaces are provided with second week to hook tooth, and described second week is intermeshing to hook tooth and the first circumferential hook tooth; The center of described mould circle 3 bottoms is provided with through hole, fairlead 8 is housed in this through hole, described tapering ratchet punch 7 is located in ratchet cover plate rotation regulator 1, the ratchet cover plate 2, the first spring 4 and fairlead 8, tapering ratchet punch 7 upper ends are connected with the pressure head 26 in mould bases top board 22, and tapering ratchet punch 7 lower ends are for pushing workpiece 12; The described ratchet cover plate 2 inner hole walls are provided with axial groove 25, on described tapering ratchet punch 7 outer walls, key 24 are housed, and described tapering ratchet punch 7 connects by key 24 with the ratchet cover plate 2, and tapering ratchet punch 7 can move axially and can not rotate in the ratchet cover plate 2 endoporus; The endoporus of described fairlead 8 is divided into upper sector hole, middle sector hole and lower sector hole by internal diameter size difference, described upper sector hole is in-built bearing 5, described bearing 5 coordinates location with tapering ratchet punch 7, described middle sector hole is in-built the second spring 9, described second spring 9 one end connect tapering ratchet punch 7, second spring 9 other ends connect fairlead 8, and described lower sector hole directly coordinates location with tapering ratchet punch 7; Described base mechanism is arranged on mould circle 3 belows, and base mechanism is by mould framing plate 19 rests; Described cold extrusion die 11 is contained in base mechanism, and cold extrusion die 11 is interior for being contained in workpiece to be processed 12; The center of described base mechanism is provided with bar hole, and described knock-pin 15 is bottom-up to be located in bar hole, and knock-pin 15 tops are just to workpiece 12.
As shown in Figure 1, in the embodiment of the present invention, described base mechanism is mainly made up of stationary magazine creel 13, circle stress 10, cover plate 18 and cushion block 14, described stationary magazine creel 13 is arranged on mould circle 3 belows, stationary magazine creel 13 is screwed on mould framing plate 19, circle stress 10 is arranged in stationary magazine creel 13 and is fixed by cover plate 18, and circle stress 10 bottoms are lined with the pad component being made up of at least one cushion block 14, and described pad component is by mould framing plate 19 rests; Described cold extrusion die 11 is contained in the centre bore of circle stress 10; Described bar hole is arranged on the center of pad component.
As shown in Figure 1, in the embodiment of the present invention, described mould bases is mainly made up of mould bases top board 22, mould framing plate 19, connecting cylinder 21 and connecting rod 20, described connecting cylinder 21 is fixedly mounted on mould bases top board 22, described connecting rod 20 is fixedly mounted on mould framing plate 19, and connecting rod 20 socket-connects with connecting cylinder 21.In the time that press moves downward cold-extruded formation tapering hook tooth, the mould bases top board 22 of mould bases also can move up and down, can be due to fail in compression.
As shown in Figure 1, in the embodiment of the present invention, described fairlead 8 is fixed on mould circle 3 by clamp ring 6, and clamp ring 6 centers are provided with installing hole, and fairlead 8 supports are in this installing hole, and clamp ring 6 upper inside wall and mould circle 3 bottom outer walls are threaded connection.
As shown in Figure 1, in the embodiment of the present invention, described knock-pin 15 is provided with limited block 16, and the corresponding cushion block 14 in described pad component is provided with spacing hole 17, and described limited block 16 matches with spacing hole 17, to limit the shift motion of knock-pin 15.In described pad component, the bottom of top cushion block 14 is provided with alignment pin, and the top of below cushion block 14 is provided with the locating hole coordinating with alignment pin.
When concrete application, workpiece 12 to be processed is placed in cold extrusion die 11, and pressure head 26 is connected with press, and it is descending that press promotes tapering ratchet punch 7 by pressure head 26, makes tapering ratchet punch 7 carry out extrusion modling operation to workpiece 12, forms tapering hook tooth, then press band dynamic head 26 lifts, tapering ratchet punch 7 upwards resets under the second spring 9 effects, in the time that touching the pitch face of the first circumferential hook tooth, the key 24 on tapering ratchet punch 7 can produce an interaction force, because ratchet cover plate rotation regulator 1 is fixed, this interaction force will order about tapering ratchet punch 7 and rotate, when rotating, tapering ratchet punch 7 can rotate with the ratchet cover plate 2, when the ratchet cover plate 2 rotates behind the position of a circumferential hook tooth, the pitch face of the key 24 on tapering ratchet punch 7 and the first circumferential hook tooth also disengages, the ratchet cover plate 2 resets under the first spring 4 effects, second week on the ratchet cover plate 2 engages again to the circumferential hook tooth of hook tooth and first on ratchet cover plate rotation regulator 1, move up and down in process at tapering ratchet punch 7, ratchet cover plate rotation regulator 1 orders about the ratchet cover plate 2 and tapering ratchet punch 7 certain angle that turns clockwise, and can carry out the extrusion modling of the next position tapering hook tooth.

Claims (6)

1. tapering ratchet cold extrusion device, is characterized in that: comprise mould bases, ratchet cover plate rotation regulator (1), the ratchet cover plate (2), mould circle (3), the first spring (4), bearing (5), tapering ratchet punch (7), fairlead (8), the second spring (9), cold extrusion die (11), knock-pin (15) and base mechanism; Mould circle (3) is fixed on mould bases top board (22), ratchet cover plate rotation regulator (1) and the ratchet cover plate (2) are installed in mould circle (3), ratchet cover plate rotation regulator (1) is connected and fixed by pin (23) and mould circle (3), the ratchet cover plate (2) can freely rotate in mould circle (3), and the first spring (4) is equipped with in the ratchet cover plate (2) below; Described ratchet cover plate rotation regulator (1) lower surface is provided with the first circumferential hook tooth, and the described ratchet cover plate (2) upper surface is provided with second week to hook tooth, and described second week is intermeshing to hook tooth and the first circumferential hook tooth; The center of described mould circle (3) bottom is provided with through hole, fairlead (8) is housed in this through hole, described tapering ratchet punch (7) is located in ratchet cover plate rotation regulator (1), the ratchet cover plate (2), the first spring (4) and fairlead (8), tapering ratchet punch (7) upper end is connected with the pressure head (26) in mould bases top board (22), and tapering ratchet punch (7) lower end is for pushing workpiece (12); The described ratchet cover plate (2) inner hole wall is provided with axial groove (25), on described tapering ratchet punch (7) outer wall, key (24) is housed, described tapering ratchet punch (7) connects by key (24) with the ratchet cover plate (2), and tapering ratchet punch (7) can move axially and can not rotate in the ratchet cover plate (2) endoporus; The endoporus of described fairlead (8) is divided into upper sector hole, middle sector hole and lower sector hole by internal diameter size difference, described upper sector hole is in-built bearing (5), described bearing (5) coordinates location with tapering ratchet punch (7), described middle sector hole is in-built the second spring (9), described the second spring (9) one end connects tapering ratchet punch (7), the second spring (9) other end connects fairlead (8), and described lower sector hole directly coordinates location with tapering ratchet punch (7); Described base mechanism is arranged on mould circle (3) below, and base mechanism is by mould framing plate (19) rest; Described cold extrusion die (11) is contained in base mechanism, and cold extrusion die (11) is interior for being contained in workpiece to be processed (12); The center of described base mechanism is provided with bar hole, and described knock-pin (15) is bottom-up to be located in bar hole, and knock-pin (15) top is just to workpiece (12).
2. tapering ratchet cold extrusion device as claimed in claim 1, it is characterized in that: described base mechanism comprises circle stress (10), stationary magazine creel (13), cushion block (14) and cover plate (18), described stationary magazine creel (13) is arranged on mould circle (3) below, stationary magazine creel (13) is fixed on mould framing plate (19), circle stress (10) is arranged in stationary magazine creel (13) and is fixed by cover plate (18), circle stress (10) bottom is lined with the pad component being made up of at least one cushion block (14), and described pad component is by mould framing plate (19) rest; Described cold extrusion die (11) is contained in the centre bore of circle stress (10); Described bar hole is arranged on the center of pad component.
3. tapering ratchet cold extrusion device as claimed in claim 1, it is characterized in that: described mould bases comprises mould framing plate (19), connecting rod (20), connecting cylinder (21) and mould bases top board (22), described connecting cylinder (21) is fixedly mounted on mould bases top board (22), it is upper that described connecting rod (20) is fixedly mounted on mould framing plate (19), and connecting rod (20) socket-connects with connecting cylinder (21).
4. tapering ratchet cold extrusion device as claimed in claim 1, it is characterized in that: described fairlead (8) is fixed on mould circle (3) by clamp ring (6), clamp ring (6) center is provided with installing hole, fairlead (8) support is in this installing hole, and clamp ring (6) upper inside wall and mould circle (3) bottom outer wall are threaded connection.
5. tapering ratchet cold extrusion device as claimed in claim 2, it is characterized in that: described knock-pin (15) is provided with limited block (16), corresponding cushion block (14) in described pad component is provided with spacing hole (17), described limited block (16) matches with spacing hole (17), to limit the shift motion of knock-pin (15).
6. tapering ratchet cold extrusion device as claimed in claim 2, is characterized in that: in described pad component, the bottom of top cushion block (14) is provided with alignment pin, and the top of below cushion block (14) is provided with the locating hole coordinating with alignment pin.
CN201310176509.7A 2013-05-13 2013-05-13 Cold extrusion device of taper ratchets Active CN103230952B (en)

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Application Number Priority Date Filing Date Title
CN201310176509.7A CN103230952B (en) 2013-05-13 2013-05-13 Cold extrusion device of taper ratchets

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Application Number Priority Date Filing Date Title
CN201310176509.7A CN103230952B (en) 2013-05-13 2013-05-13 Cold extrusion device of taper ratchets

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CN103230952B true CN103230952B (en) 2014-12-10

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447340B (en) * 2013-08-27 2015-07-22 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
CN104858256B (en) * 2015-05-20 2017-01-11 江苏太平洋精锻科技股份有限公司 Shaft sleeve end three-side tooth cold extrusion forming die
CN105080984A (en) * 2015-09-18 2015-11-25 无锡贺邦金属制品有限公司 Ratchet wheel extrusion forming process
CN107413923B (en) * 2017-04-28 2019-02-19 重庆鼎汉机械有限公司 Spoke punching apparatus

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* Cited by examiner, † Cited by third party
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CN100396432C (en) * 2004-11-12 2008-06-25 陈萌 Maching process and mold for annulus of external gear reduced one-way device
JP2006239770A (en) * 2005-03-07 2006-09-14 Daido Steel Co Ltd Die for forging
CN102284541A (en) * 2010-06-18 2011-12-21 上海久丰汽车零件有限公司 Cold extrusion mould for pinion shaft in power-assisted steering device
CN203235769U (en) * 2013-05-13 2013-10-16 无锡市神力齿轮冷挤有限公司 Cold extruding device of taper ratchet

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