CN203764734U - Fine-blanking extrusion die of star wheel of clutch - Google Patents

Fine-blanking extrusion die of star wheel of clutch Download PDF

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Publication number
CN203764734U
CN203764734U CN201420143770.7U CN201420143770U CN203764734U CN 203764734 U CN203764734 U CN 203764734U CN 201420143770 U CN201420143770 U CN 201420143770U CN 203764734 U CN203764734 U CN 203764734U
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China
Prior art keywords
die
connects
mould
screw
bolster
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Expired - Fee Related
Application number
CN201420143770.7U
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Chinese (zh)
Inventor
童佑正
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Xiangshan Intelligent Science And Technology Ltd Far Away Of Fighting
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Xiangshan Intelligent Science And Technology Ltd Far Away Of Fighting
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Priority to CN201420143770.7U priority Critical patent/CN203764734U/en
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Publication of CN203764734U publication Critical patent/CN203764734U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a fine-blanking extrusion die of a star wheel of a clutch. The fine-blanking extrusion die comprises a ball guiding sleeve, two concave die pre-tightening rings, a first screw, a concave die, an upper pressure plate, a workpiece, a first cylindrical pin, a concave die bolster, an upper die base, a guiding column, a pushing edge ring, a discharging screw, a convex die, a convex die bolster, a lower die base, two ejector rods, a second cylindrical pin, a second screw and a convex die fixing plate, wherein the ball guiding sleeve sleeves the guiding column; the two concave die pre-tightening rings are respectively positioned on two sides of the concave die; the first screw is connected with the concave die pre-tightening ring on one side of the concave die; and the concave die is respectively connected with the workpiece and the concave die bolster. The fine-blanking extrusion die of the star wheel of the clutch is reasonable in design, easy and convenient to operate, high in efficiency and low in cost; the star wheel of the clutch is formed by using a fine-blanking extrusion process; the dimensional precision of parts can be improved; the mechanical property of the parts is improved; the productivity can also be increased; materials are saved; and an application prospect is wide.

Description

A kind of clutch star-wheel essence impact extrusion compression mould
Technical field
The utility model especially relates to a kind of clutch star-wheel essence impact extrusion compression mould.
Background technology
Fine-edge blanking refers to the process that just can obtain the stamping that otch section is bright and clean, overall size precision is high by punching stroke, the part of essence punching processing can directly use, having very high economic benefit, is one of the advanced precision processing technology in punching press field.Sheet-metal press working for material thickness t > 4mm is all classified as slab punching press, and at present to rush technology difficulty larger for Thick Plate Fine.Thick, thin-plate fine blanking is compared, and slab blanking pressure is larger, and die life is low, and die-cut cross section quality is poor, and size and the accuracy of form and position are low.
Utility model content
Technical problem to be solved in the utility model is: a kind of clutch star-wheel essence impact extrusion compression mould is provided.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of clutch star-wheel essence impact extrusion compression mould, comprises ball bearing guide bushing, 2 pre-collars of die, the first screw, die, upper holding pad, workpiece, the first straight pin, die backing plate, upper bolster, guide pillar, lower blank holder, unloading bolt, punch, convex mould pad, die shoe, 2 push rods, the second straight pin, the second screw and punch retainer, ball bearing guide bushing is enclosed within on guide pillar, 2 pre-collars of die lay respectively at the both sides of die, the first screw connects the pre-collar of die of a side, die connects respectively workpiece and die backing plate, upper holding pad is positioned at the centre position of mould, and connects workpiece, and the first straight pin connects respectively the pre-collar of die, die backing plate and upper bolster, die backing plate connects respectively upper bolster and the pre-collar of die, and upper bolster connects respectively die backing plate and upper holding pad, and guide pillar connects respectively upper bolster and die shoe, lower blank holder connects respectively workpiece and punch retainer, and unloading bolt connects respectively convex mould pad, die shoe and punch retainer, punch connects respectively lower blank holder, convex mould pad and punch retainer, convex mould pad connects respectively push rod, the second straight pin and the second screw, die shoe is positioned at the below of mould, and each push rod connects respectively convex mould pad, die shoe and punch retainer, the second straight pin connects respectively convex mould pad, die shoe and punch retainer, the second screw connects the second straight pin.
The utility model also has following feature:
Also comprise profile of tooth blank holder, profile of tooth blank holder connects respectively workpiece and punch.
On described upper holding pad, offer clout groove, to hold material unnecessary in extrusion process, improve the stress of mould.
Described die adopts combined die structural design, utilizes interference fit to make die produce pretightning force.
Adopted technique scheme, the beneficial effects of the utility model are:
The utility model is reasonable in design, easy and simple to handle, and efficiency is high and cost is low, adopt smart impact extrusion compression technology shaping clutch star-wheel, not only can improve parts size precision, improve part mechanical property, can also boost productivity, save material, have broad application prospects.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is partial structurtes schematic diagram of the present utility model.
Wherein: 1, ball bearing guide bushing, 2, the pre-collar of die, 3, the first screw, 4, die, 5, upper holding pad, 6, workpiece, 7, the first straight pin, 8, die backing plate, 9, upper bolster, 10, guide pillar, 11, lower blank holder, 12, unloading bolt, 13, punch, 14, convex mould pad, 15, die shoe, 16, push rod, 17, the second straight pin, 18, the second screw, 19, punch retainer, 20, profile of tooth blank holder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1
A kind of clutch star-wheel essence impact extrusion compression mould, comprises ball bearing guide bushing 1, 2 pre-collars 2 of die, the first screw 3, die 4, upper holding pad 5, workpiece 6, the first straight pin 7, die backing plate 8, upper bolster 9, guide pillar 10, lower blank holder 11, unloading bolt 12, punch 13, convex mould pad 14, die shoe 15, 2 push rods 16, the second straight pin 17, the second screw 18 and punch retainer 19, ball bearing guide bushing 1 is enclosed within on guide pillar 10, 2 pre-collars 2 of die lay respectively at the both sides of die 4, the first screw 3 connects the pre-collar 2 of die of a side, die 4 connects respectively workpiece 6 and die backing plate 8, upper holding pad 5 is positioned at the centre position of mould, and connection workpiece 6, the first straight pins 7 connect respectively the pre-collar 2 of die, die backing plate 8 and upper bolster 9, die backing plate 8 connects respectively upper bolster 9 and the pre-collar 2 of die, upper bolster 9 connects respectively die backing plate 8 and upper holding pad 5, guide pillar 10 connects respectively upper bolster 9 and die shoe 15, lower blank holder 11 connects respectively workpiece 6 and punch retainer 19, and unloading bolt 12 connects respectively convex mould pad 14, die shoe 15 and punch retainer 19, punch 13 connects respectively lower blank holder 11, convex mould pad 14 and punch retainer 19, convex mould pad 14 connects respectively push rod 16, the second straight pin 17 and the second screw 18, die shoe 15 is positioned at the below of mould, and each push rod 16 connects respectively convex mould pad 14, die shoe 15 and punch retainer 19, the second straight pins 17 connect respectively convex mould pad 14, die shoe 15 and punch retainer 19, the second screw 18 connects the second straight pin 17, also comprise profile of tooth blank holder 20, profile of tooth blank holder 20 connects respectively workpiece 6 and punch 13, on described upper holding pad 5, offer clout groove, to hold material unnecessary in extrusion process, improve the stress of mould, described die 4 adopts combined die structural design, utilizes interference fit to make die produce pretightning force.
Embodiment 2
As shown in Figure 2, essence is rushed Extruding die cutting edge size and is made up of two parts, and 0.5mm gets in the monolateral gap of punch and matrix in cutting edge of die dimension D place, bottom, and plate is first under profile of tooth under the effect of blank holder 2 and upper holding pad, be pressed in die surface, then complete fine-edge blanking; The monolateral gap of punch and matrix, cutting edge of die size d place, top is less than 0.5mm, and along with patrix moves downwards, under profile of tooth, blank holder also and then moves downward, and finally goes up holding pad and die and forms near closed hollow ring.On upper holding pad, offer clout groove, to hold material unnecessary in extrusion process, improve the stress of mould.
Essence is rushed extrusion process roughly can divide 3 stages.The 1st stage double blade gear ring is pressed into plate, complete flanging process, to produce strong flanging active force, make the plasticity detrusion district of plate form three-dimensional compressive stress state, increase the hydrostatic pressure of deformed area and neighborhood thereof, stop shear zone metal in addition to flow with punch at shear history, thereby in shear zone, produce compression, the Plastic Flow that makes essence break through journey to be similar to crimp, this one-phase is identical with fine-edge blanking process.The 2nd stage punch incision plate, increases along with punch enters slab depth, and plate starts to be extruded, until material separates completely.The 3rd stage was sheet metal blanking face generation crimp, was clamp-oned upper model cavity completely, and excess stock flows in clout groove, and section is by complete burnishing-in.
Combined die is to utilize interference fit to make die produce pretightning force, and the radially working stress producing while forging partly or entirely to compensate for, improves radially tensile strength of mould.For the combined die that makes design meets actual operation requirements, must be analyzed mould structure and stress, as the bearing capacity of each layer of die does not allow to exceed the allowable stress of mold materials, the ratio outer, internal diameter of combined die must be limited in a zone of reasonableness.
Embodiment 3
The course of work: when stamping-out starts, under profile of tooth, blank holder 11 is first pressed on plate on die, upper holding pad applies counter-pressure to plate simultaneously.Patrix is descending subsequently, and plate is in the effect down cut fracture of punch and die 4 cutting edges.Patrix continues descending, and upper holding pad retreats, until upper holding pad contacts with interior platform terrace, stops retreating.Along with patrix continues descendingly again, material is press-fit into concave die cavity (size d place), and crimp occurs, and excess stock is squeezed in clout groove, until shear surface section is by burnishing-in.After having pushed, patrix is up, and workpiece is ejected under the effect of upper holding pad, and push rod is up, ejects waste material, and essence is rushed extrusion process and finished.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.

Claims (4)

1. a clutch star-wheel essence impact extrusion compression mould, comprises ball bearing guide bushing, 2 pre-collars of die, the first screw, die, upper holding pad, workpiece, the first straight pin, die backing plate, upper bolster, guide pillar, lower blank holder, unloading bolt, punch, convex mould pad, die shoe, 2 push rods, the second straight pin, the second screw and punch retainer, it is characterized in that: ball bearing guide bushing is enclosed within on guide pillar, 2 pre-collars of die lay respectively at the both sides of die, the first screw connects the pre-collar of die of a side, die connects respectively workpiece and die backing plate, upper holding pad is positioned at the centre position of mould, and connects workpiece, and the first straight pin connects respectively the pre-collar of die, die backing plate and upper bolster, die backing plate connects respectively upper bolster and the pre-collar of die, and upper bolster connects respectively die backing plate and upper holding pad, and guide pillar connects respectively upper bolster and die shoe, lower blank holder connects respectively workpiece and punch retainer, and unloading bolt connects respectively convex mould pad, die shoe and punch retainer, punch connects respectively lower blank holder, convex mould pad and punch retainer, convex mould pad connects respectively push rod, the second straight pin and the second screw, die shoe is positioned at the below of mould, and each push rod connects respectively convex mould pad, die shoe and punch retainer, the second straight pin connects respectively convex mould pad, die shoe and punch retainer, the second screw connects the second straight pin.
2. a kind of clutch star-wheel essence impact extrusion compression mould as claimed in claim 1, is characterized in that: also comprise profile of tooth blank holder, profile of tooth blank holder connects respectively workpiece and punch.
3. a kind of clutch star-wheel essence impact extrusion compression mould as claimed in claim 1, is characterized in that: on described upper holding pad, offer clout groove, to hold material unnecessary in extrusion process, improve the stress of mould.
4. a kind of clutch star-wheel essence impact extrusion compression mould as claimed in claim 1, is characterized in that: described die adopts combined die structural design, utilizes interference fit to make die produce pretightning force.
CN201420143770.7U 2014-03-28 2014-03-28 Fine-blanking extrusion die of star wheel of clutch Expired - Fee Related CN203764734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420143770.7U CN203764734U (en) 2014-03-28 2014-03-28 Fine-blanking extrusion die of star wheel of clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420143770.7U CN203764734U (en) 2014-03-28 2014-03-28 Fine-blanking extrusion die of star wheel of clutch

Publications (1)

Publication Number Publication Date
CN203764734U true CN203764734U (en) 2014-08-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384322A (en) * 2014-09-12 2015-03-04 武汉理工大学 Forming process for fine blanking and extrusion of compound boss part by plate material
CN105855354A (en) * 2016-05-16 2016-08-17 常州大学 Chain wheel blanking forming method and device
CN107716727A (en) * 2017-11-29 2018-02-23 中国航空工业标准件制造有限责任公司 Punch process supporting plate self-lock nut pallet flute profile shaping mould
CN111112532A (en) * 2019-12-24 2020-05-08 华北水利水电大学 Forging and pressing die

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384322A (en) * 2014-09-12 2015-03-04 武汉理工大学 Forming process for fine blanking and extrusion of compound boss part by plate material
CN104384322B (en) * 2014-09-12 2016-03-30 武汉理工大学 A kind of forming technology of Used for Sheet Stamping extrusion cladding boss part
CN105855354A (en) * 2016-05-16 2016-08-17 常州大学 Chain wheel blanking forming method and device
CN107716727A (en) * 2017-11-29 2018-02-23 中国航空工业标准件制造有限责任公司 Punch process supporting plate self-lock nut pallet flute profile shaping mould
CN111112532A (en) * 2019-12-24 2020-05-08 华北水利水电大学 Forging and pressing die
CN111112532B (en) * 2019-12-24 2021-06-01 华北水利水电大学 Forging and pressing die

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140813

Termination date: 20150328

EXPY Termination of patent right or utility model