CN209647592U - A kind of powder metallurgy die of isolator star-wheel - Google Patents

A kind of powder metallurgy die of isolator star-wheel Download PDF

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Publication number
CN209647592U
CN209647592U CN201920292896.3U CN201920292896U CN209647592U CN 209647592 U CN209647592 U CN 209647592U CN 201920292896 U CN201920292896 U CN 201920292896U CN 209647592 U CN209647592 U CN 209647592U
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punch
star
wheel
former
punching
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CN201920292896.3U
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蓝楷
李宁
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Shijiazhuang Fine Stone New Mstar Technology Ltd
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Shijiazhuang Fine Stone New Mstar Technology Ltd
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Abstract

A kind of powder metallurgy die of isolator star-wheel of the utility model, including former, upper punching, next punching and following two punch, key is: having and the matched pillar of star-wheel step structure and groove on the type cavity wall of the former, the upper punching of mating setting and next stamping punch are sleeved in cavity impression, the nose of punch of following two punch pass through next punching insertion on rushes in central small hole, and by around its formed punch setting fin and cavity impression, it is next rush to impulse face and on sweep away impulse face formed and the matched type chamber of star wheel structure yin-yang.By the way that pillar and groove is arranged in cavity impression, rushes to setting fin next, the pillar that keeps cavity impression side wall intracavitary with it, groove, it is next rush to impulse face, following two punch fin and punch sidewall and on sweep away impulse face formed with the matched type chamber of star wheel structure yin-yang, can efficiently form.

Description

A kind of powder metallurgy die of isolator star-wheel
Technical field
The utility model belongs to powder metallurgical technology, is related to the processing technology of motorcycle one-way device accessory star-wheel, tool Body is related to the mold by powder metallurgy forming star-wheel.
Background technique
Mold, in industrial production using injection molding, blow molding, squeeze out, die casting or the methods of forging and stamping, smelting, punching press, stretching molding Various moulds and tool when required product.Powder metallurgy be produce metal powder or with metal powder (or metal powder with The mixture of non-metal powder) it is used as raw material to produce metal material, composite material and various types through overmolding and sintering The industrial technology of product.PM technique have significant energy conservation, material saving, have excellent performance, Product Precision is high and stability is good etc. Series of advantages is very suitable for producing in enormous quantities.When using PM technique shaped article, the design of mold to Guan Chong It wants.
Isolator star-wheel is abnormity component, generally medium carbon steel or alloy steel, machined and be heat-treated. Since its is complex-shaped, requirement on machining accuracy is high, keep difficulty of processing big, part processing capacity is big, and waste of material is serious, processing cost It is higher.The especially star-wheel of multi-step structure, difficulty of processing and cost are higher, and efficiency is lower.
Summary of the invention
The purpose of this utility model is to provide a kind of mold for the powder metallurgy forming of star-wheel, by being arranged in cavity impression Pillar and groove, with punching and two undershoots molding multi-step star-wheel is closed, save production link, improve production efficiency.
A kind of technical solution that the utility model uses for achieving the above object are as follows: powder metallurgy of isolator star-wheel Mold, including former, upper punching, next punching and following two punch, key are: having and star-wheel step on the type cavity wall of the former The pillar and groove of structure matching, the upper punching of mating setting and next stamping punch are sleeved in cavity impression, the formed punch of following two punch End passes through to be rushed in central small hole in next punching insertion, and by the fin and cavity impression, Xia Yichong around the setting of its formed punch Upper impulse face and on sweep away impulse face formed with the matched type chamber of star wheel structure yin-yang.
In the utility model, by the way that pillar and groove is arranged in cavity impression, rushes to setting fin next, make former type The chamber side wall pillar intracavitary with it, groove, it is next rush to impulse face, following two punch fin and punch sidewall and on sweep away impulse face formed with The matched type chamber of star wheel structure yin-yang, can efficiently form star-wheel.
Further, the star wheel structure is complicated, and step surface is more, including by set in upper circle set, abnormity, lower circle set and in The three-stage composite hollow wheel body that heart hole is formed and the step groove being provided on wheel body sidewall;Lower circle set outer diameter is greater than upper circle set, And it is provided with around its inner wall and is upwardly extended with the matched slot of following two punch rib structures, slot from lower circle set bottom surface;In abnormity Cover the long arc shape boss and short lug that there is body identical with lower circle set outer diameter and protrude from body;Step groove is covered from lower circle) Bottom surface extends to short lug, and including the interior shallow slot that section is camber and the outer deep trouth that section is mesh shape, interior shallow slot and outer deep trouth exist Wall thickness direction connects, penetrates through wheel body sidewall.
Further, the type chamber lower section of the former be with the lower circular hole that be adapted to of circle set, and on hole wall setting with it is interior shallowly Slot and the matched interior short column of outer deep trouth and outer Gao Zhu, upper section by with the matched elongated arcuate grooves of long arc shape boss and with short lug Matched short lug grooves, which are formed, covers the irregularly-shaped hole being adapted to abnormity.The elongated arcuate grooves and short lug grooves opened up by upper section make Type chamber is in two sections of change contour structures, becomes profile complicated appearance to form the segmentation of star-wheel;Pass through the short column in cavity impression is arranged With outer Gao Zhu, step groove while plastic star-wheel profile on molding star-wheel side wall;Without be individually for step groove, abnormity in cover Projective structure be separately provided plunger chip die component, save number of molds and cost.
Further, it is provided with mounting hole upwards across the outer deep trouth top surface of star-wheel, the outer high top end of former is correspondingly arranged There is the beveled tip of positioning hole.Because installation pore size is too small, mandrel fracture will lead to using core rod forming, pass through circular cone The top location and installation hole site of shape can be convenient for subsequent drilling.
Further, the formed punch of next punching be outer profile be adapted to cavity impression lower section profile, inner hole and following two punch Formed punch matched hollow nested structure offers the slot being adapted to interior short column and outer high column on side wall, offered on inner hole wall with The matched rib slot of following two punch rib structures.In cavity impression lower section, following two punch formed punch covers in next punching next headgear in a state of excitement, The inside and outside contour structure of next punching is adapted to cavity impression and following two punch formed punch respectively.
Further, the formed punch of the following two punch includes plug and three fins for being distributed in plug periphery.The following two punch Structure forms slot by fin by core rod forming star-wheel centre bore, it may not be necessary to the plug of molding centre bore, section be separately provided About number of molds and cost.
Further, the formed punch of the upper punching be outer profile be adapted to former upper section profile, central small hole and following two punch core The hollow nested structure that stick adaptation, lower end macropore are adapted to upper circle set.Structure is rushed on this, because star-wheel centre bore is through-hole, so setting Count central small hole be inserted into for following two punch plug with formed central hole, lower end macropore and central small hole formation step pore structure at Circle set in type.
Further, in order to omit subsequent chamfer machining process, contour line on next face in a state of excitement, on rush central small hole Hole is stupefied along chamfering is provided with.
Further, be improve product integral hardness and wearability, making mold, higher integral strength, service life compared with Long, the former includes the die sleeve and former ontology of interference fit, and type chamber is provided on former ontology, and the material of die sleeve is 45# Steel, the material of former ontology are SKH9 mould steel;The upper punching, next punching and following two punch material are DC53 cold work die steel.
The utility model has the following beneficial effects: the labyrinth star-wheel of (1) for multi-step, the utility model pass through in yin Step structure is added on model cavity and following two punch, the globality of mold can be improved, saves number of molds, installation difficulty is reduced, subtracts Few production link saves material, is artificial, and then reducing cost, significantly improves production efficiency.(2) mold production star-wheel its Size, surface accuracy, stability is good, even density, and quality is stablized.(3) number of molds is few, is opened difficulty and at low cost, installation Quick and convenient, debugging is quick.
Detailed description of the invention
Fig. 1 is structural schematic diagram when star-wheel bottom surface is inverted upward in embodiment;
Fig. 2 is assembling structure schematic diagram when each die assembly and star-wheel form in embodiment;
Fig. 3 is the assembling structure schematic diagram of former in embodiment, next punching and following two punch;
Fig. 4 is the structural schematic diagram of former in embodiment;
Fig. 5 is the structural schematic diagram of next punching in embodiment;
Fig. 6 is the structural schematic diagram of following two punch in embodiment;
Fig. 7 is the structural schematic diagram of a upper punching in embodiment;
It in attached drawing, is rushed in 1 representative, 11 represent central small hole, and 12 represent lower end macropore, and 2 represent former, and 21 representatives are interior short Column, 22 represent outer Gao Zhu, and 221 represent beveled tip, and 23 represent elongated arcuate grooves, and 24 represent short lug grooves, and 25 represent die sleeve, 26 represent former ontology, and 3 represent next punching, and 31 represent slot, and 32 represent rib slot, and 4 represent following two punch, and 41 represent fin, 42 generations Watch core stick, 5 represent star-wheel, and 51 represent circle set, and 52 represent and cover in abnormity, and 521 represent long arc shape boss, and 522 represent short lug, 53 represent lower circle set, and 54 represent slot, and shallow slot in 55 representatives, 56 represent outer deep trouth, and 57 represent centre bore, and 58 represent mounting hole, and 6 It is stupefied to represent chamfering.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Referring to attached drawing, star-wheel 5 includes three sections formed by covering 52, lower circle set 53 and centre bore 57 in upper circle set 51, abnormity Formula composite hollow wheel body and the step groove being provided on wheel body sidewall.53 outer diameters of lower circle set are greater than upper circle set 51, and in it Wall is provided with the slot 54 with 4 fin of following two punch, 41 structure matching, and slot 54 extends upwardly in abnormity from 53 bottom surfaces of lower circle set It covers at 52 inner walls.Set 52 has body identical with lower circle 53 outer diameters of set and protrudes from the long arc shape boss 521 of body in abnormity With short lug 522.Long arc shape boss 521 is identical with the height of short lug 522.Step groove covers 53 bottom surfaces to short lug from lower circle 522 extend, and including the interior shallow slot 55 that section is camber and the outer deep trouth 56 that section is mesh shape, interior 55 top surface of shallow slot is in short lug 522 bottom surfaces are hereinafter, outer deep trouth 56 extends to short 522 bottom surface of lug, interior shallow slot 55 and outer deep trouth 56 connects in wall thickness direction, penetrates through Take turns body sidewall.
The powder metallurgy die of the isolator star-wheel, including former 2, upper punching 1, next punching 3 and following two punch 4.Former 2 includes The die sleeve 25 and former ontology 26 of interference fit, type chamber are provided on former ontology 26, and the material of die sleeve 25 is 45# steel, former The material of ontology 26 is SKH9 mould steel.The type chamber lower section of former ontology 25 is the circular hole being adapted to lower circle set 53, and in hole wall Upper setting and interior shallow slot 55 and the matched interior short column 21 of outer deep trouth 56 and outer high column 22, upper section by with long arc shape boss 521 The elongated arcuate grooves 23 matched and the irregularly-shaped holes being adapted to set 52 in the matched short formation of lug grooves 24 of short lug 522 and abnormity.It wears 56 top surface of outer deep trouth for crossing star-wheel 5 is provided with mounting hole 58 upwards, and outer high 22 top of column of former ontology 25 is correspondingly arranged on positioning The beveled tip 221 of mounting hole 58.The formed punch of next punching 3 is that outer profile is adapted to 25 type chamber lower section profile of former ontology, is interior Hole and 4 formed punch of following two punch matched hollow nested structure offer the slot 31 being adapted to interior short column 21 and outer high column 22 on side wall, The rib slot 32 with 4 fin of following two punch, 41 structure matching is offered on inner hole wall.The formed punch of following two punch 4 includes plug 42 and is distributed in Three fins 41 of 42 periphery of plug.The formed punch of the upper punching 1 is adapted to for outer profile with 25 upper section profile of former ontology, center is small The hollow nested structure that hole 11 is adapted to 4 plug 42 of following two punch, lower end macropore 12 is adapted to upper circle set 51.Along next face in a state of excitement Contour line, upper punching 1 central small hole, 11 hole edge are provided with chamfering stupefied 6.Upper punching 1, next punching 3 and 4 material of following two punch are DC53 cold-working Mould steel.
When specific compacting, 3 formed punches of next punching are inserted upwardly into the intracavitary lower section of 25 type of former ontology, and next impulse face that rushes on 3 is to outer The height of high 22 top surface of column is adapted to the height of lower circle set 53, and the formed punch of following two punch 4 is inserted upwardly into 3 inner cavities of next punching, fin The height of impulse face is highly adapted to slot 54 in the relatively next punching 3 in 41 top surfaces.After filling powder, 1 formed punch of upper punching is inserted into downwards former The intracavitary upper section of 25 type of ontology, the plug 42 of following two punch 4 are inserted into and rush in 1 central small hole 11, rush on 1 bottom surface of upper punching to next punching 3 The height in face is adapted to the total height of set 52 in abnormity and lower circle set 53.

Claims (10)

1. a kind of powder metallurgy die of isolator star-wheel, including former (2), upper punching (1), next punching (3) and following two punch (4), It is characterized by: on the type cavity wall of the former (2) have with the matched pillar of star-wheel (5) step structure and groove, it is mating The upper punching (1) and next punching (3) formed punch being arranged are sleeved on that former (2) type is intracavitary, and the nose of punch of following two punch (4) passes through next punching (3) it is rushed in (1) central small hole (11) in insertion, and by fin (41) and former (2) type chamber, next around the setting of its formed punch Impulse face under impulse face and upper punching (1) is rushed on (3) to be formed and the matched type chamber of star-wheel (5) structure yin-yang.
2. the powder metallurgy die of isolator star-wheel according to claim 1, it is characterised in that: the star-wheel (5) includes By covering (52), lower circle set (53) and the three-stage composite hollow wheel body that is formed of centre bore (57) in upper circle set (51), abnormity and opening The step groove being located on wheel body sidewall;Lower circle set (53) outer diameter is greater than upper circle and covers (51), and is provided with and lower two around its inner wall The slot (54) of (4) fin (41) structure matching is rushed, slot (54) is upwardly extended from lower circle set (53) bottom surface;(52) are covered in abnormity With with the lower circle identical body of set (53) outer diameter and protruding from the long arc shape boss (521) and short lug (522) of body;Step Slot extends from lower circle set (53) bottom surface to short lug (522), is mesh shape including the interior shallow slot (55) that section is camber and section Outer deep trouth (56), interior shallow slot (55) and outer deep trouth (56) connect in wall thickness direction, penetrate through wheel body sidewall.
3. the powder metallurgy die of isolator star-wheel according to claim 2, it is characterised in that: the type of the former (2) Chamber lower section is covers the circular hole that (53) are adapted to lower circle, and setting and interior shallow slot (55) and outer deep trouth (56) are matched interior on hole wall Short column (21) and outer Gao Zhu (22), upper section by with long arc shape boss (521) matched elongated arcuate grooves (23) and with short lug (522) irregularly-shaped hole that matched short lug grooves (24) formation is adapted to set (52) in abnormity.
4. the powder metallurgy die of isolator star-wheel according to claim 3, it is characterised in that: pass through the outer of star-wheel (5) Deep trouth (56) top surface is provided with mounting hole (58) upwards, and outer Gao Zhu (22) top of former (2) is correspondingly arranged on positioning hole (58) beveled tip (221).
5. the powder metallurgy die of isolator star-wheel according to claim 3, it is characterised in that: next punching (3) Formed punch be outer profile be adapted to former (2) type chamber lower section profile, inner hole and the matched hollow nested structure of following two punch (4) formed punch, side The slot (31) being adapted to interior short column (21) and outer Gao Zhu (22) is offered on wall, is offered on inner hole wall convex with following two punch (4) The rib slot (32) of rib (41) structure matching.
6. the powder metallurgy die of isolator star-wheel according to claim 5, it is characterised in that: the following two punch (4) Formed punch includes plug (42) and three fins (41) for being distributed in plug (42) periphery.
7. the powder metallurgy die of isolator star-wheel according to claim 6, it is characterised in that: the upper punching (1) is rushed Head is outer profile is adapted to former (2) upper section profile, central small hole (11) is adapted to following two punch (4) plug (42), lower end macropore (12) the hollow nested structure being adapted to upper circle set (51).
8. the powder metallurgy die of isolator star-wheel according to claim 7, it is characterised in that: along next face in a state of excitement Contour line, upper punching (1) central small hole (11) hole are stupefied (6) along chamfering is provided with.
9. the powder metallurgy die of isolator star-wheel according to claim 1-8, it is characterised in that: the former It (2) include the die sleeve (25) and former ontology (26) being interference fitted, type chamber is provided on former ontology (26), the material of die sleeve (25) Matter is 45# steel, and the material of former ontology (26) is SKH9 mould steel.
10. the powder metallurgy die of isolator star-wheel according to claim 1-8, it is characterised in that: on described Rushing (1), next punching (3) and following two punch (4) material is DC53 cold work die steel.
CN201920292896.3U 2019-03-08 2019-03-08 A kind of powder metallurgy die of isolator star-wheel Active CN209647592U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920292896.3U CN209647592U (en) 2019-03-08 2019-03-08 A kind of powder metallurgy die of isolator star-wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920292896.3U CN209647592U (en) 2019-03-08 2019-03-08 A kind of powder metallurgy die of isolator star-wheel

Publications (1)

Publication Number Publication Date
CN209647592U true CN209647592U (en) 2019-11-19

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ID=68526374

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920292896.3U Active CN209647592U (en) 2019-03-08 2019-03-08 A kind of powder metallurgy die of isolator star-wheel

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Country Link
CN (1) CN209647592U (en)

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