CN103230952A - Cold extrusion device of taper ratchets - Google Patents

Cold extrusion device of taper ratchets Download PDF

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Publication number
CN103230952A
CN103230952A CN2013101765097A CN201310176509A CN103230952A CN 103230952 A CN103230952 A CN 103230952A CN 2013101765097 A CN2013101765097 A CN 2013101765097A CN 201310176509 A CN201310176509 A CN 201310176509A CN 103230952 A CN103230952 A CN 103230952A
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China
Prior art keywords
ratchet
cover plate
mould
tapering
hole
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CN2013101765097A
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Chinese (zh)
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CN103230952B (en
Inventor
陈利忠
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无锡市神力齿轮冷挤有限公司
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Priority to CN201310176509.7A priority Critical patent/CN103230952B/en
Publication of CN103230952A publication Critical patent/CN103230952A/en
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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 with cold extrusion form making tapering hook tooth belongs to the auto parts and components processing technique field.
Background technology
The tapering ratchet is applied to the tapering Ratcheting one-way clutch, is the important spare part on the automobile engine, and there are very important influence in the performance of tapering ratchet and service life to automobile engine.Present tapering ratchet processing mode all is machining, mainly there are defectives such as tapering hook tooth contact-making surface is short, operating noise is big, poor stability, occur broken teeth, skidding easily at engine starting process, be used for starter and generally have only 30000 times service life.
Summary of the invention
The objective 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 big, and intensity is big, 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, first spring, bearing, tapering ratchet punch, fairlead, second spring, cold extrusion die, knock-pin and base mechanism; The mould circle is fixed on the mould bases top board, and ratchet cover plate rotation regulator and the ratchet cover plate are installed in the 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 the mould circle, and 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 the second circumferential hook tooth, and the described second circumferential hook tooth and the first circumferential hook tooth are meshing with each other; 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, first spring and the fairlead, tapering ratchet punch upper end is connected with pressure head in the mould bases top board, and tapering ratchet punch lower end is for workpiece is pushed; Described ratchet cover plate inner hole wall is provided with axial groove, on the described tapering ratchet punch outer wall key is housed, and described tapering ratchet punch and the ratchet cover plate are by key connecting, and the tapering ratchet punch can axially move in ratchet cover plate endoporus and can not rotate; The endoporus of described fairlead is divided into sector hole, middle sector hole and following sector hole by the internal diameter size difference, described going up in the sector hole is equipped with bearing, described bearing cooperates the location with the tapering ratchet punch, in the sector hole second spring is housed in described, described second spring, one end connects the tapering ratchet punch, the second spring other end connects fairlead, and described sector hole down directly cooperates the location with the tapering ratchet punch; Described base mechanism is arranged on mould circle below, and base mechanism is by the mould framing plate rest; Described cold extrusion die is contained in the base mechanism, is used for being contained in workpiece to be processed in the cold extrusion die; The center of described base mechanism is provided with the bar hole, and described knock-pin is bottom-up to be located in the bar hole, and the knock-pin top is over against 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 the mould framing plate, circle stress is arranged in the stationary magazine creel and by cover plate and is fixed, the circle stress bottom is lined with the cushion block assembly of being made up of at least one cushion block, and described cushion block assembly is by the 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 cushion block assembly.
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 the mould bases top board, and described connecting rod is fixedly mounted on the mould framing plate, and connecting rod and connecting cylinder socket-connect.
As a further improvement on the present invention, described fairlead is fixed on the mould circle by clamp ring, and the clamp ring center is provided with installing hole, and the fairlead support is in this installing hole, and clamp ring upper inside wall and mould circle bottom outer wall are by being threaded.
As a further improvement on the present invention, described knock-pin is provided with limited block, and the corresponding cushion block in the described cushion block assembly is provided with spacing hole, and described limited block matches with spacing hole, with the shift motion of restriction knock-pin.
As a further improvement on the present invention, in the described cushion block assembly, the bottom of top cushion block is provided with alignment pin, and the top of below cushion block is provided with the locating hole that cooperates with alignment pin.
The present invention compared with prior art, advantage is:Structure of the present invention is ingenious rationally, and process operation is convenient, the tapering hook tooth stable performance of adopting this device to process, and bearing capacity is big, and intensity is big, and long service life can significantly improve the running of engine.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the tapering ratchet cold extrusion device among the embodiment mainly is made up of parts such as ratchet cover plate rotation regulator 1, the ratchet cover plate 2, mould circle 3, first spring 4, bearing 5, first spring 6, tapering ratchet punch 7, fairlead 8, 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 the 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 in mould circle 3, and 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 the second circumferential hook tooth, and the described second circumferential hook tooth and the first circumferential hook tooth are meshing with each other; 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, first spring 4 and the fairlead 8, pressure head 26 in tapering ratchet punch 7 upper ends and the mould bases top board 22 is connected, and tapering ratchet punch 7 lower ends are for workpiece 12 is pushed; 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 axially move in the ratchet cover plate 2 endoporus and can not rotate; The endoporus of described fairlead 8 is divided into sector hole, middle sector hole and following sector hole by the internal diameter size difference, described going up in the sector hole is equipped with bearing 5, described bearing 5 cooperates the location with tapering ratchet punch 7, in the sector hole second spring 9 is housed in described, described second spring, 9 one ends connect tapering ratchet punch 7, second spring, 9 other ends connect fairlead 8, and described sector hole down directly cooperates the 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 the base mechanism, is used for being contained in workpiece to be processed 12 in the cold extrusion die 11; The center of described base mechanism is provided with the bar hole, described knock-pin 15 bottom-up being located in the bar hole, and knock-pin 15 tops are over against workpiece 12.
As shown in Figure 1, in the embodiment of the invention, described base mechanism mainly is 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 the stationary magazine creel 13 and by cover plate 18 and is fixed, and circle stress 10 bottoms are lined with the cushion block assembly of being made up of at least one cushion block 14, and described cushion block assembly 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 cushion block assembly.
As shown in Figure 1, in the embodiment of the invention, described mould bases mainly is 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 the mould bases top board 22, described connecting rod 20 is fixedly mounted on the mould framing plate 19, and connecting rod 20 socket-connects with connecting cylinder 21.When press moved downward cold-extruded formation tapering hook tooth, the mould bases top board 22 of mould bases also can move up and down, can be owing to fail in compression.
As shown in Figure 1, in the embodiment of the invention, described fairlead 8 is fixed on the 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 by being threaded.
As shown in Figure 1, in the embodiment of the invention, described knock-pin 15 is provided with limited block 16, and the corresponding cushion block 14 in the described cushion block assembly is provided with spacing hole 17, and described limited block 16 matches with spacing hole 17, with the shift motion of restriction knock-pin 15.In the described cushion block assembly, 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 that cooperates with alignment pin.
During concrete the application, workpiece 12 to be processed is placed in the 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 7 pairs of workpiece of tapering ratchet punch 12 carry out the extrusion modling operation, forms the tapering hook tooth; Press drive pressure head 26 lifts then, tapering ratchet punch 7 upwards resets under 9 effects of second spring, when touching the pitch face of the first circumferential hook tooth, the key 24 on the 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, can be with by tapering ratchet punch 7 ratchet cover plate 2 to rotate, after the ratchet cover plate 2 rotates the position of a circumferential hook tooth, the pitch face of the key 24 on the tapering ratchet punch 7 and the first circumferential hook tooth also disengages, the ratchet cover plate 2 resets under 4 effects of first spring, and the first circumferential hook tooth on the circumferential hook tooth of second on the ratchet cover plate 2 and the ratchet cover plate rotation regulator 1 meshes again; Namely move up and down in the 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), first spring (4), bearing (5), tapering ratchet punch (7), fairlead (8), second spring (9), cold extrusion die (11), knock-pin (15) and base mechanism; Mould circle (3) is fixed on the mould bases top board (22), ratchet cover plate rotation regulator (1) and the ratchet cover plate (2) are installed in the 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 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 the second circumferential hook tooth, and the described second circumferential hook tooth and the first circumferential hook tooth are meshing with each other; 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), first spring (4) and the fairlead (8), tapering ratchet punch (7) upper end is connected with pressure head (26) in the mould bases top board (22), and tapering ratchet punch (7) lower end is for workpiece (12) is pushed; 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 axially move in the ratchet cover plate (2) endoporus and can not rotate; The endoporus of described fairlead (8) is divided into sector hole, middle sector hole and following sector hole by the internal diameter size difference, described going up in the sector hole is equipped with bearing (5), described bearing (5) cooperates the location with tapering ratchet punch (7), in the sector hole second spring (9) is housed in described, described second spring (9) one ends connect tapering ratchet punch (7), second spring (9) other end connects fairlead (8), and described sector hole down directly cooperates the 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 the base mechanism, is used for being contained in workpiece to be processed (12) in the cold extrusion die (11); The center of described base mechanism is provided with the bar hole, and described knock-pin (15) is bottom-up to be located in the bar hole, and knock-pin (15) top is over against 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 the mould framing plate (19), circle stress (10) is arranged in the stationary magazine creel (13) and is fixed by cover plate (18), circle stress (10) bottom is lined with the cushion block assembly of being made up of at least one cushion block (14), and described cushion block assembly 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 cushion block assembly.
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 the mould bases top board (22), described connecting rod (20) is fixedly mounted on the 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 the 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 by being threaded.
5. tapering ratchet cold extrusion device as claimed in claim 1, it is characterized in that: described knock-pin (15) is provided with limited block (16), corresponding cushion block (14) in the described cushion block assembly is provided with spacing hole (17), described limited block (16) matches with spacing hole (17), with the shift motion of restriction knock-pin (15).
6. tapering ratchet cold extrusion device as claimed in claim 2, it is characterized in that: in the described cushion block assembly, 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 that cooperates 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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CN103230952A true CN103230952A (en) 2013-08-07
CN103230952B CN103230952B (en) 2014-12-10

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447340A (en) * 2013-08-27 2013-12-18 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
CN104858256A (en) * 2015-05-20 2015-08-26 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
CN107413923A (en) * 2017-04-28 2017-12-01 重庆鼎汉机械有限公司 Spoke punching apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772431A (en) * 2004-11-12 2006-05-17 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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1772431A (en) * 2004-11-12 2006-05-17 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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447340A (en) * 2013-08-27 2013-12-18 中国兵器科学研究院宁波分院 Pre-diverging-wedge pressing precision forming die and disc forming method
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
CN104858256A (en) * 2015-05-20 2015-08-26 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
CN107413923A (en) * 2017-04-28 2017-12-01 重庆鼎汉机械有限公司 Spoke punching apparatus
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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