CN107042277A - Box car inner riveting type collar forming method and mould - Google Patents
Box car inner riveting type collar forming method and mould Download PDFInfo
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- CN107042277A CN107042277A CN201710234670.3A CN201710234670A CN107042277A CN 107042277 A CN107042277 A CN 107042277A CN 201710234670 A CN201710234670 A CN 201710234670A CN 107042277 A CN107042277 A CN 107042277A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/58—Making machine elements rivets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Box car inner riveting type collar forming method and mould.The collar is made up of the flange of the sleeve by interior macropore and interior aperture.Using processes such as blank, 15 station cold-headings, punchings.12 stations are smooth to cold-heading blank both ends of the surface and cold-heading goes out upper and lower chamfering male cone (strobilus masculinus).Three stations to five station cold-headings are from forming flange, sleeve blank, preexisting hole to shaped flange, sleeve and interior three hole.Punching excludes three endoporus waste materials set ring forming.Three to five station dies, which have, rushes the dynamic upper pipe of core ribbon, can make to block product during reset and move back upwards, be ejected product directly or by thimble and outer ejector sleeve by lower section thimble.Existing turnery processing is substituted with cold-heading, product strength is high；Each stock volume reduces 3 times, and stock utilization improves 3 times, and material usage drops to 1/3.Cold-heading blank is processed on the cold header of six station dies equipped with automatic operating clamp, and at least cold-heading in 1 minute goes out 30 products, and 1 product of existing turnery processing at least wants 5 minutes, and efficiency improves more than 150 times.Available for the box car inner riveting type collar.
Description
(1) technical field：The present invention relates to a kind of pulling rivet collar cold-heading material molding technology, belong to connector class
(E06B) and metal forging class (B21J).
(2) background technology：
The shape of the inner riveting type pulling rivet collar finished product 7 of box car (lorry) is shown in Fig. 7 and Fig. 8, and collar finished product is by covering
Cylinder 7B and flange 7A (also known as covering take capel) compositions.Sleeve 7B includes two sections:Endoporus for macropore 7.2 book wall cylinder crotch section with
And endoporus is the locking section composition of the thick cyclinder of aperture 7.1.(refer to Chinese invention patent<Detachable locking riveting dismounting
Method and pulling rivet>Patent No. ZL201410650279.8).Flange endoporus is also aperture 7.1, herein referred as aperture in flange
7.1, macropore 7.2 is herein referred as macropore 7.2 in sleeve, is unthreaded hole.
Traditional box car is mainly with inner riveting type pulling rivet collar forming method uses turning.See Fig. 7, one piece is provided first
Turning blank 8 (see dotted line in Fig. 7), its size is:Turning blank external diameter Φ 8=collar flange outer diameter Φ A+ external diameter turnery processings
Amount.Turning blank height H8=collars overall length+overall length turnery processing amount, collar overall length=H7A+H7B.General flange outer diameter Φ A
It is 3-4 times of sleeve outer diameter Φ B, so there is following point using turnery processing:1) utilization rate of raw materials is low, production efficiency
It is low, cause cost high:Because flange is big with sleeve diameter gap, substantial amounts of material is consumed, and again because processing capacity also causes greatly effect
Rate is low.2) low intensity in turning with product after turning.
(3) content of the invention
The box car that the present invention is provided inner riveting type collar preparation method and mould, exactly solve traditional box car and are drawn with inner riveting type
Rivet collar is molded with method for turning, there are problems that utilization rate of raw materials is low, processing efficiency is low,.Technical scheme is such as
Under：
Box car inner riveting type collar preparation method, it is characterized in that comprising the following steps：
1) blank：1. the external diameter Φ of cylinder cold-heading blank 9 is determined9=K9 Φ A, 2. determine cylinder cold-heading blank height H9
=4U5.4/ π Φ9 2；Wherein Φ A are the flange maximum gauge of collar finished product 7；K9=0.6 ∽ 0.7；U5.4 is the work station product of cold-heading five
5.4 volume.2) a station cold-heading：Processing request:Smooth shaping is carried out to cold-heading blank both ends of the surface, while cold-heading goes out outside upper chamfering
Conical surface 1.4A；Procedure of processing:1. cold-heading blank is placed in the upper mould macropore Φ 1.21 of one mould 1.2 of shaping；One mould thimble 1.3
Rise to fillet surface 1.22C positions on the shaping next mould aperture of one mould；2. a stamping rod 1.1 pushes the shaping of cold-heading blank；3. one
Mould thimble ejects a work station product 1.4.3) two station cold-heading：Processing request:To a work station product both ends of the surface shaping again, and
Cold-heading goes out lower chamfering male cone (strobilus masculinus) 2.4A；Procedure of processing:1. a work station product is turned to be put into two mould macropores of the mould 2 of cold-heading two after 180 °
In Φ 2.21；Two mould thimbles 2.3 rise to down fillet surface 2.22C positions on two mould apertures；2. two stamping rods 2.1 push a station
Product is until shaping；3. two mould thimbles rise two work station products 2.4 of ejection.4) three station cold-heading：Processing request:Produce three stations
Product 3.4 have after being molded:Flange blank 3.41, sleeve blank 3.42 and the three station preexisting holes 3.44 on flange blank；Plus
Work step is rapid:1. the top surface of three mould of shaping, 3.2 aperture 3.22 is put into after two work station products are translated；Three mould thimbles 3.3 rise to away from into
The low H of mould aperture top surface of type three3.42Face 3.22C, H3.42It is high for three work station product sleeve blanks 3.42；2. three stamping core 3.1B bands
Pipe 3.1A declines simultaneously on dynamic three moulds, first two work station products is pushed by three stamping cores, when Guan Suisan stampings core drops on three moulds
After in three mould macropore Φ 3.21, both push simultaneously, two work station product material is shaped to three stations in three mould macropores and aperture
Product；3. when three stamping cores leave three station preexisting holes 3.44 under the back-moving spring 3.1C effects at top, pipe is blocked on three moulds
Three work station products are moved back upwards, while the ejection of three work station products is arrived mould mouthful by three mould thimbles.5) four station cold-heading：Processing request:
Have four work station products 4.4 after cold-heading:It is big before the four station flange 4.4A that are further molded, four station sleeve 4.4B, the collar
Four station preexisting holes 4.42 on the station flange top of hole 4.41 and four；
Procedure of processing:1. it is put into after three work station products are translated in four moulds 4.2 of shaping；Four moulds on the top of four mould thimble 4.3
Thimble first 4.31 withstands three work station product lower planes 3.43；2. pipe 4.1A and four stamping core 4.1B pushes three simultaneously on four moulds
Work station product is shaped to four work station products in four mould macropores of shaping and aperture；3. four stamping cores are in the mould back-moving spring of top four
Upward out four stations preexisting hole under 4.1C effects, pipe blocks four work station products with ibid moving back on four moulds；Simultaneously by four mould apertures
Interior outer ejector sleeve 4.3A, by four work station products ejection to mould mouthful.6) five station cold-heading：Processing request:Make five work station products 5.4
Have:Aperture 5.43 and sleeve and flange contact after aperture 5.42, the collar in collar front large hole 5.41 from front to back, the collar
The groove 5.4C at position；Procedure of processing:：1. it is put into after four work station products are translated in five moulds 5.2 of shaping；Five mould thimbles 5.3
Thimble first 5.31 is put in and through the thick preceding hole 4.41 of the collar, withstands on rear end face in the thick preceding hole of the collar；2. pipe 5.1A and five on five moulds
Stamping core 5.1B pushes four work station products simultaneously, and five work station products are shaped to being molded in five mould macropores and aperture；3. five
Pipe blocks the production of five stations to stamping core on upward out five stations preexisting hole 5.43, five moulds under the back-moving spring 5.1C effects at top
Product are with ibid moving back, while the ejector sleeve 5.3A outside five moulds in five mould apertures, mould mouthful is arrived by the ejection of five work station products.7) punching:
Processing request:By aperture 5.43 after aperture 5.42, the collar in the collar front large hole 5.41 of five work station product 5.4, the collar, become sleeve
7.1 two holes of aperture in interior macropore 7.2, flange, form collar finished product 7.Procedure of processing:1. five work station products are rotated 180 °
Afterwards, it is fixed on plane on perforating die 6.2；2. descending five work station product of impact extrusion, three holes of punched hole punching rod 6.1, by waste material in three holes
Go out outside hole.
The mould that product need to be provided is made by above-mentioned box car inner riveting type collar preparation method, including:Six station cold-headings zero
Part forming machine and operating clamp, it is characterized in that：The function of each station die and each station die structure, design parameter etc. with it is specific
Embodiment is identical, is not repeated herein.
Beneficial effect of the present invention:
1) turning is substituted by cold-heading, stock utilization is improved, and material usage greatly reduces.Substituted first with cold-heading blank 9
Turning blank 8, each cold-heading blank materials about 25g, stock utilization is 85%-95%；And each turning blank materials are about
75g, stock utilization is only 25%-35%.Each stock volume reduces 3 times, and stock utilization improves 3 times, material usage
Drop to 1/3.
2) turning is substituted by cold-heading, processing efficiency is greatly improved.The present invention is designed as six station cold-headings zero by collar shape
Part forming machine, be each equipped with thereon exit dress be automatically performed above and below station workpiece take shipment turn automatic operating clamp.
At least cold-heading in 1 minute of this six stations cold heading technique goes out 30 collar products, and existing turning machines 1 collar product at least
5 minutes are needed, efficiency of the present invention improves more than 150 times.
3) using cold-heading molding compared with turning, the consistency increase of product tissue, product strength is improved.
(4) illustrate：
The station cold-headings of Fig. 1 mono- start product cross section figure after preceding die sinking tool and location of workpiece schematic diagram and cold-heading.Including:
The station cold-headings of Fig. 1 .1 mono- start front mold and location of workpiece schematic diagram (workpiece 9 is not put into also in one mould of shaping).
The sectional view of mono- work station products of Fig. 1 .2 1.4.
The station cold-headings of Fig. 2 bis- start product cross section figure after front mold and location of workpiece schematic diagram and cold-heading.Including:
The station cold-headings of Fig. 2 .1 bis- start front mold and location of workpiece schematic diagram.(workpiece 1.4 is not put into two moulds of shaping also
It is interior).
The sectional view of bis- work station products of Fig. 2 .2 2.4.
The station cold-headings of Fig. 3 tri- start product cross section figure after front mold and location of workpiece schematic diagram and cold-heading.
Die sinking tool and location of workpiece schematic diagram before the station cold-headings of Fig. 3 .1 tri- start.(workpiece 2.4 has been put into three moulds of shaping
It is interior).
The sectional view of tri- work station products of Fig. 3 .2 3.4.
The station cold-headings of Fig. 4 tetra- start product cross section figure after front mold and location of workpiece diagram and cold-heading.
Fig. 4 .1 cold-headings start front mold and location of workpiece schematic diagram.(workpiece 3.4 has been put into four moulds of shaping).
The sectional view of tetra- work station products of Fig. 4 .2 4.4.
The station cold-headings of Fig. 5 five start product cross section figure after front mold and location of workpiece diagram and cold-heading.
Fig. 5 .1 cold-headings start front mold and location of workpiece schematic diagram.(workpiece 4.4 has been put into five moulds of shaping).
The sectional view of five work station products of Fig. 5 .2 5.4.
Fig. 5 .3 are partial enlarged drawing A in Fig. 5 .1.
Fig. 6 punchings start front mold and location of workpiece schematic diagram.
The sectional view of Fig. 7 shaping collars product 7 and the schematic cross-section of turning blank 8.
Fig. 8 Fig. 7 top views.
(5) embodiment
The present embodiment box car inner riveting type pulling rivet collar preparation method, is included on multi-station cold-heading parts shaping machine,
Be fixed with following six stations cold upsetting die of car and exit dress automatic operating clamp, by operating clamp be automatically performed above and below station work
Part take shipment turn.Its preparation method has the following steps:
1) blank：See Fig. 1 .1, cold-heading blank 9 is shaped as cylinder, its size is typically true by product different model size
It is fixed.The size that the present embodiment is determined is as follows:1. the external diameter Φ of cold-heading blank 9 is determined9=K9x Φ A=0.6x27.5=16.5mm.②
Determine cylinder cold-heading blank height H9=4U5.4/ π Φ9 2=12.5mm.In upper two formula:See Fig. 7, the flange of collar finished product 7 is most
Major diameter elects Φ A=27.5mm as；Here K is taken9=0.6；Complete five work station product of cold-heading is determined by the work station product shapes of Fig. 5 .2 five
5.4 volume U5.4=2671mm3。
2) a station cold-heading：See Fig. 1,
Processing request:See Fig. 1 .2, smooth shaping is carried out to the both ends of the surface of cold-heading blank 9, while cold-heading goes out upper chamfering male cone (strobilus masculinus)
1.4A。
Procedure of processing:See Fig. 1 .1,1. cold-heading blank is placed on to a upper mould 1.21 for one mould 1.2 of shaping (by operating clamp)
In macropore Φ 1.21；One mould thimble 1.3 rises to fillet surface 1.22C positions on the next aperture Φ 1.22 of mould 1.22 of one mould of shaping；
2. a stamping rod 1.1 pushes the shaping of cold-heading blank；3. last mould thimble ejects a work station product 1.4 (in the fortune of mould mouthful
Turn in clamp).
3) two station cold-heading：See Fig. 2
Processing request:See Fig. 2 .2, to a work station product both ends of the surface shaping again, and cold-heading goes out lower chamfering male cone (strobilus masculinus) 2.4A.
Procedure of processing:See Fig. 2 .1, two mould macropore Φ of the mould 2 of cold-heading two 1. will be put into after 1.4 turns 180 ° of a work station product
2.21 it is interior；Two mould thimbles 2.3 rise to down fillet surface 2.22C positions on the aperture of two mould 2.22；2. two stamping rods 2.1 push a work
Position product is until shaping；3. two mould thimbles 2.3 rise two work station products 2.4 of ejection.
4) three station cold-heading：See Fig. 3.
Processing request:See Fig. 3 .2, three work station products 3.4 is had after being molded:Flange blank 3.41, sleeve blank 3.42
And the three station preexisting holes 3.44 on flange blank.
Procedure of processing:See Fig. 3 .1, Fig. 3 .2, the shaping aperture 3.22 of three mould 3.2 is put into after 1. two work station products 2.4 are translated
Top surface；Three mould thimbles 3.3 are risen to away from the shaping low H of aperture top surface of three mould 3.23.42Face 3.22C, H3.42For the three of processing request
3.4 sleeve blank of work station product 3.42 is high (see Fig. 3 .2)；2. three stamping core 3.1B drive pipe 3.1A on three moulds to decline simultaneously, first
Two work station products 2.4 are pushed by three stamping core 3.1B, after Guan Suisan stampings core drops in three mould macropore Φ 3.21 on three moulds,
Both push simultaneously, two work station product material is shaped to three work station products in three mould macropores and aperture.3. three stamping cores are on top
When leaving three station preexisting hole 3.44 in three work station products under the back-moving spring 3.1C effects in portion, pipe blocks the production of three stations on three moulds
Product 3.4 are moved back upwards, while the ejection of three work station products is arrived mould mouthful by three mould thimbles 3.3.
5) four station cold-heading：See Fig. 4.
Processing request:Seeing after Fig. 4 .2, cold-heading has four work station products 4.4:Four station flanges being further molded
4.4A, four station sleeve 4.4B, four station preexisting holes 4.42 on the station flange of collar front large hole 4.41 and four.
Procedure of processing:See Fig. 4 .1, Fig. 4 .2, be put into after 1. three work station products 3.4 are translated in four moulds 4.2 of shaping；Four moulds
The four mould thimbles first 4.31 on the top of thimble 4.3 withstand the lower plane 3.43 of three work station product 3.4；2. pipe 4.1A and four stampings on four moulds
Core 4.1B pushes three work station products and is shaped to four work station products in four mould macropores 4.21 of shaping and aperture 4.22 simultaneously
4.4.3. four stations of the four stamping core 4.1B under the mould back-moving spring 4.1C of top four effects at the top of upward out four work station product
During preexisting hole 4.42, pipe 4.1A blocks four work station products with ibid moving back on four moulds, while the cross section in four mould apertures 4.22
With ejector sleeve 4.3A outside four station sleeve leading portion identicals, four work station products 4.4 are ejected into mould mouthful.
6) five station cold-heading：See Fig. 5
Processing request:See Fig. 5 .2, there are five work station products 5.4:In collar front large hole 5.41 from front to back, the collar
Aperture 5.43 and sleeve and the groove 5.4C at flange contact position after aperture 5.42, the collar.
Procedure of processing:See Fig. 5 .1, see Fig. 5 .2,：1. it is put into after four work station products 4.4 are translated in five moulds 5.2 of shaping；Five
Five mould thimbles first 5.31 of mould thimble 5.3 are put in and through the thick preceding hole 4.41 of the collar, withstand on rear end face in the thick preceding hole of the collar；2. five
Pipe 5.1A and five stamping core 5.1B pushes four work station products 4.4 simultaneously on mould, is being molded five mould macropores 5.21 and aperture
Five work station products 5.4 are shaped in 5.22.3. five stamping cores top back-moving spring 5.1C effect under upward out five station
During five station preexisting hole 5.43 at the top of product, pipe blocks five work station products with ibid moving back on five moulds, while in five mould apertures
Cross section and the outer ejector sleeve 5.3A of the mould of five station sleeve leading portion identical five, by five work station products ejection to mould mouthful.
7) punching:See Fig. 6
Processing request:By three holes in five work station products:Aperture after aperture 5.42, the collar in collar front large hole 5.41, the collar
5.43 (see Fig. 5 .2) become two holes:Macropore 7.2 in sleeve, aperture 7.1 in flange, as collar finished product 7 (see Fig. 7).Cover
7.2 apertures of macropore=aperture of collar front large hole 5.41 in cylinder；5.42 apertures of aperture=set in 7.1 apertures of aperture=collar in flange
The aperture of aperture 5.43 after ring.
Procedure of processing:1. five work station products 5.4 are rotated after 180 °, is fixed on plane on perforating die 6.2；2. punched hole punching rod
6.1 descending five work station product of impact extrusion, 5.4 3 holes, waste material in three holes is gone out outside hole.
The mould that product need to be provided is made by above-mentioned the present embodiment box car inner riveting type pulling rivet collar forming method, it is as follows
Composition：Including:Multi-station cold-heading parts shaping machine, is fixed with following six station dies thereon, in the another part outlet of every station die
Place takes the operating clamp of dress working parts provided with upper and lower station is completed automatically.
1) mould 1 of cold-heading one:See Fig. 1,
One mould function：See Fig. 1 .2, smooth shaping is carried out to the both ends of the surface of cold-heading blank 9, while cold-heading goes out lower chamfering male cone (strobilus masculinus)
1.4A。
The mould of cold-heading one is constituted:See Fig. 1 .1, Fig. 1 .2, be provided with from top to bottom:
1. a stamping rod 1.1:One stamping rod bottom external diameter is Φ 1.1=cold-heading blank external diameters Φ9；
2. it is molded a mould 1.2:By having a upper mould 1.21 for macropore and 1.22 groups of next mould for having aperture under a mould on a mould
Into:
The work station product external diameter Φ 1.4 of macropore diameter Φ 1.21=mono- on one mould；
Macropore includes the height H1.21 of chamfering more than a work station product height H1.4 on one mould；
Diameter of phi 1.4A after the work station product chamferings of small aperture Φ 1.22=mono- under one mould；
3. a mould thimble 1.3:One mould thimble upper end external diameter Φ 1.3 is small in small aperture Φ 1.22 under a mould, between the two
Gap coordinates.
2) mould 2 of cold-heading two:See Fig. 2
Two mould functions：See Fig. 2 .2, to a work station product both ends of the surface shaping again, and cold-heading goes out lower chamfering male cone (strobilus masculinus) 2.4A.
The mould of cold-heading two is constituted:Fig. 2 .1, Fig. 2 .2 are seen, by being provided with from top to bottom:
1. two stamping rod 2.1:The work station product external diameter Φ 1.4 of two stamping rod outside diameter Φ 2.1=mono-.
2. two moulds 2.2 are molded:By having upper two mould 2.21 of macropore and 2.22 groups of lower two mould for having aperture under two moulds on two moulds
Into；
The work station product external diameters of macropore diameter Φ 2.21=bis- on two moulds
Macropore includes chamfer height H2.21 and is more than two work station product height H2.4 on two moulds；
Diameter of phi 2.4A after the work station product chamferings of small aperture Φ 2.22=bis- under two moulds；
3. two mould thimble 2.3:Two mould thimble external diameter Φ 2.3 are small in small aperture Φ 2.22 under two moulds, between the two gap
Coordinate.
3) mould 3 of cold-heading three:See Fig. 3
Three mould functions：See Fig. 3 .2, three complete work station products 3.4 of cold-heading have:Flange blank 3.41, sleeve blank 3.42
And the three station preexisting holes 3.44 on flange blank.
The mould of cold-heading three is constituted:See Fig. 3 .1, Fig. 3 .2, be provided with from top to bottom:
1. the pipe 3.1A and three stamping core 3.1B in it on three moulds is set:There is a step in stage casing, and hole is built with three at this
Stamping core back-moving spring 3.1C；Three stamping core top external diameter Φ 3.1b of step epimere are more than external diameter under three stamping cores of step hypomere
Φ3.1B。
Internal diameter Φ 3.1a are micro- under pipe 3.1A on three moulds is more than external diameter Φ 3.1B under three stamping core 3.1B, and gap is matched somebody with somebody between the two
Close.(this design is easy to three stamping cores manage on three moulds in it is movable, three stamping cores after three station preexisting holes 3.44 are processed,
When retreating rising under three film action of reset spring, pipe blocks three work station products on three moulds, prevents from moving with three stamping cores.)
External diameter Φ 3.1A are small in being molded the aperture Φ 3.21 of macropore 3.21 on three moulds under being managed on three moulds, and gap is matched somebody with somebody between the two
Close.
2. it is set as the mould 3.2 of type three:There are macropore 3.21 and aperture 3.22 under three moulds communicated therewith on three moulds in top.
Macropore diameter Φ 3.21==flange blank external diameters Φ 3.41 on three moulds；
Macropore height H3.21 is more than flange blank height H3.41 on three moulds；
Three mould small aperture Φ 3.22=sleeve blank external diameters Φ 3.42；
Height=sleeve blank height H3.42 is vacated on aperture top under three moulds；
3. three mould thimbles 3.3 are set:Three mould thimble top external diameter Φ 3.3=sleeve blank external diameters Φ 3.42.
4) mould 4 of cold-heading four:See Fig. 4
Four mould functions:See Fig. 4 .2, four complete work station products 4.4 of cold-heading have:Four station flanges being further molded
Four station preexisting holes 4.42 on the thick preceding hole 4.41 of 4.4A, four station sleeve 4.4B, the collar, four station flanges.
The mould of cold-heading four is constituted:See Fig. 4 .1, Fig. 4 .2, be provided with from top to bottom:
1. the pipe 4.1A and four stamping core 4.1B in it on four moulds:There is a step in stage casing, and hole is built with four moulds at this
Rush core back-moving spring 4.1C.Four stamping core top external diameter Φ 4.1b of step epimere are more than external diameter Φ under four stamping cores of step hypomere
4.1B。
Internal diameter Φ 4.1a are micro- under pipe 4.1A on four moulds is more than external diameter Φ 4.1B under four stamping core 4.1B, and both gaps coordinate.
(this design is easy to four stamping cores to manage interior activity on four moulds, and four stamping cores are processing four station preexisting holes 4.42 in four stations
When the lower retrogressing of back-moving spring 4.1C effects is upward, pipe blocks four work station products on four moulds, prevents from moving with four stamping cores.)
External diameter Φ 4.1A are small in being molded the aperture Φ 4.21 of macropore 4.21 on four moulds under being managed on four moulds, and gap is matched somebody with somebody between the two
Close.
2. the mould 4.2 of shaping four provided with aperture 4.22 under macropore 4.21, four moulds on four moulds:
The external diameter Φ 4.4A of the station flanges of macropore external diameter Φ 4.21=tetra- on four moulds
Macropore height H4.21 is more than four station flange height H4.4A on four moulds
The station sleeve outer diameter Φ 4.4B of small aperture Φ 4.22=tetra- under four moulds
3. four mould thimbles 4.3 are set:See Fig. 4 .2, see Fig. 4 .1, four mould thimble tops have is used for processing four with what thimble was moved
Four mould thimbles first 4.31 of work station product.Four mould apertures 4.22 are built with ejector sleeve 4.3A outside four stations for releasing four work station products.
The thick preceding shape of hole 4.41 of the station collar of first 4.31 shape of four mould thimbles=tetra-.
The station sleeve 4.4B leading portions thick preceding hole 4.41 containing the collar of the outer ejector sleeve 4.3A shape of cross sections size of four stations=tetra-
Cross sectional shape size.The outer ejector sleeve 4.3A set locations of four stations are away from the height H4.4B that aperture top surface is four station sleeve 4.4B.
The outer ejector sleeve 4.3A of four stations and first 4.31 gap of four mould thimbles coordinate.
5) mould 5 of cold-heading five:See Fig. 5.
Five mould functions:See Fig. 5 .2：Five complete work station products 5.4 of cold-heading have:Collar front large hole 5.41 from front to back,
Aperture 5.43 and sleeve and flange contact position groove 5.4C after aperture 5.42, the collar in the collar.
The mould of cold-heading five is constituted:See Fig. 5 .1, Fig. 5 .2, be provided with from top to bottom:
1. the pipe 5.1A and five stamping core 5.1B in it on five moulds:There is a step in stage casing, and hole is built with five moulds at this
Rush core back-moving spring 5.1C.Five stamping core top external diameter Φ 5.1b of step epimere are more than external diameter Φ under five stamping cores of step hypomere
5.1B。
Internal diameter Φ 5.1a are micro- under pipe 5.1A on five moulds is more than external diameter Φ 5.1B under five stamping core 5.1B, and gap is matched somebody with somebody between the two
Close.(this design is easy to five stamping cores to manage interior activity, five stamping cores aperture after the five work station product collars are processed on five moulds
After 5.43, when being retreated upwards under five station back-moving spring 5.1C effects, pipe blocks five work station products on five moulds, prevents with five
Stamping core is moved.)
External diameter Φ 5.1A are small in being molded the aperture Φ 5.21 of macropore 5.21 on five moulds under being managed on five moulds, and gap is matched somebody with somebody between the two
Close.
2. provided with aperture 5.22, the mould of shaping five of five mould aperture top surface circular bosses 5.23 under macropore 5.21, five moulds on five moulds
5.2:On five moulds the station flange 5.4A of macropore diameter Φ 5.21=five external diameter Φ 5.4A=collar finished product flange outer diameter Φ A (see
Fig. 7).
Macropore height H5.21 is more than five station flange height H5.4A on five moulds.
The station collar external diameter Φ 5.4B=collar finished product sleeve outer diameter Φ B of small aperture Φ 5.22=five are (see figure under five moulds
7)。
Shape (see Fig. 5 .3)=five station sleeve of five mould aperture top surface circular bosses 5.23 and flange connections groove 5.4C shapes
Shape (see Fig. 5 .2)=middle sleeve of collar finished product 7 and flange connections groove 7A1 shapes (see Fig. 7).
3. five mould thimbles 5.3 are set:See Fig. 5 .2, see Fig. 5 .1, five mould thimble tops there are five mould thimbles first 5.31, for processing
Aperture 5.42 in the collar of five work station products；Five 5.1B, stamping cores are used for aperture 5.43 after the collar of five work station products of processing.
Five mould apertures 5.22 are built with ejector sleeve 5.3A outside five stations for releasing five work station products.
It is small in 5.43 shapes of aperture=sleeve after 5.42 shapes of aperture=collar in five first 5.31 shapes of mould thimble=collar
The shape of hole 7.1.
Five station sleeves 5.42 of the work station product of the outer ejector sleeve 5.3A shape of cross sections size of five stations=five contain big before the collar
The leading portion cross sectional shape size of hole 5.41.
The outer ejector sleeve 5.3A set locations of five stations are away from the height H5.4B that aperture top surface is five station sleeves 5.42.Five stations
Gap coordinates between outer ejector sleeve 5.3A and five mould thimbles first 5.31.
6) perforating die 6:See Fig. 6,
Perforating die function:By three holes in five work station products:It is small after aperture 5.42, the collar in collar front large hole 5.41, the collar
(see Fig. 5 .2) becomes two holes in hole 5.43:Macropore 7.2 in sleeve, aperture 7.1 in flange, as collar finished product 7 (see Fig. 7).I.e.
7.2 apertures of macropore=aperture of collar front large hole 5.41 in sleeve；The aperture of aperture 5.42 in 7.1 apertures of aperture=collar in flange=
The aperture of aperture 5.43 after the collar.
Perforating die is constituted:It is provided with from top to bottom:
1. there is punching rod 6.1 top, and there is punching caput 6.1A punching rod bottom.
Punching caput 6.1A external diameter is small in the aperture of aperture 7.1 in the flange of collar finished product 7, punching caput with it is small in flange
7.1, hole gap coordinates.
2. lower section is set as type perforating die 6.2, and there is discharge through hole 6.2A at center；The waste material of discharge through hole and outside or subsurface
Device is connected.
Claims (2)
1. box car inner riveting type collar forming method, it is characterized in that comprising the following steps：
1) blank：1. cylinder cold-heading blank (9) external diameter Φ is determined9=K9 Φ A, 2. determine cylinder cold-heading blank height H9=
4U5.4/πΦ9 2；Wherein Φ A are the flange maximum gauge of collar finished product 7；K9=0.6 ∽ 0.7；U5.4For the work station product of cold-heading five
(5.4) volume；
2) a station cold-heading：
Processing request:Smooth shaping is carried out to cold-heading blank both ends of the surface, while cold-heading goes out upper chamfering male cone (strobilus masculinus) (1.4A)；
Procedure of processing:1. cold-heading blank is placed in the upper mould macropore Φ 1.21 of one mould of shaping (1.2)；One mould thimble (1.3)
Rise to fillet surface (1.22C) position on the shaping next mould aperture of one mould；2. a stamping rod (1.1) pushes the shaping of cold-heading blank；
3. a mould thimble ejects a work station product (1.4)；
3) two station cold-heading：
Processing request:To a work station product both ends of the surface shaping again, and cold-heading goes out lower chamfering male cone (strobilus masculinus) (2.4A)；
Procedure of processing:1. it is put into after a work station product being turned into 180 ° in two mould macropore Φ 2.21 of the mould of cold-heading two (2)；Two mould thimbles
(2.3) fillet surface (2.22C) position on two mould apertures is risen to down；2. two stamping rods (2.1) push a work station product until into
Type；3. two mould thimbles rise two work station products of ejection (2.4)；
4) three station cold-heading：
Processing request:Three work station products (3.4) are made to have after being molded:Flange blank (3.41), sleeve blank (3.42) and in method
Three station preexisting holes (3.44) on blue blank；
Procedure of processing:1. shaping three moulds (3.2) aperture (3.22) top surface is put into after two work station products are translated；Three mould thimbles
(3.3) rise to away from the three low H of mould aperture top surface of shaping3.42Face (3.22C), H3.42For three work station product sleeve blanks (3.42)
It is high；2. three stamping cores (3.1B) drive pipe (3.1A) on three moulds to decline simultaneously, first two work station products are pushed by three stamping cores, when three
After Guan Suisan stampings core drops in three mould macropore Φ 3.21 on mould, both push simultaneously, make two work station product material big in three moulds
Three work station products are shaped in hole and aperture；3. to leave three stations pre- under back-moving spring (3.1C) effect at top for three stamping cores
During pore-forming (3.44), pipe blocks three work station products and moved back upwards on three moulds, while the ejection of three work station products is arrived mould by three mould thimbles
Mouthful；
5) four station cold-heading：
Processing request:Have four work station products (4.4) after cold-heading:Four station flanges (4.4A), four stations being further molded
Four station preexisting holes (4.42) on sleeve (4.4B), collar front large hole (4.41) and four station flange tops；
Procedure of processing:1. it is put into after three work station products are translated in four moulds of shaping (4.2)；Four moulds on four mould thimble (4.3) tops
Thimble head (4.31) withstands three work station product lower planes (3.43)；2. (4.1A) and four stamping cores (4.1B) are managed on four moulds with present
Fall three work station products of pressure and be shaped to four work station products in four mould macropores of shaping and aperture；3. four stamping cores are multiple in the mould of top four
Upward out four stations preexisting hole under position spring (4.1C) effect, pipe blocks four work station products with ibid moving back on four moulds；While by
Outer ejector sleeve (4.3A) in four mould apertures, by four work station products ejection to mould mouthful；
6) five station cold-heading：
Processing request:There are five work station products (5.4):Aperture in collar front large hole (5.41) from front to back, the collar
(5.42), aperture (5.43) and sleeve and the groove at flange contact position (5.4C) after the collar；
Procedure of processing:：1. it is put into after four work station products are translated in five moulds of shaping (5.2)；The thimble head of five mould thimbles (5.3)
(5.31) put in and through the thick preceding hole (4.41) of the collar, withstand on rear end face in the thick preceding hole of the collar；2. (5.1A) and five is managed on five moulds
Stamping core (5.1B) is shaped to five work station products while push four work station products being molded in five mould macropores and aperture；③
Pipe blocks five to five stamping cores on upward out five stations preexisting hole (5.43), five moulds under back-moving spring (5.1C) effect at top
Work station product is with ibid moving back, while the ejector sleeve (5.3A) outside five moulds in five mould apertures, mould mouthful is arrived by the ejection of five work station products；
7) punching:
Processing request:By aperture after aperture (5.42), the collar in five work station products (5.4) collar front large hole (5.41), the collar
(5.43) become macropore in sleeve (7.2), (7.1) two holes of aperture in flange, form collar finished product (7)；
Procedure of processing:1. five work station products are rotated after 180 °, is fixed on plane on perforating die (6.2)；2. punched hole punching rod (6.1)
Descending five work station product of impact extrusion, three holes, waste material in three holes is gone out outside hole.
2. the box car inner riveting type collar forming method as described in claim 1 makes the mould that product need to be provided, including:Six stations
Cold-heading parts shaping machine and operating clamp, it is characterized in that：Six station dies are as follows:
1) mould of cold-heading one (1) is provided with from top to bottom:
1. a stamping rod (1.1):One stamping rod bottom external diameter is Φ 1.1=cold-heading blank external diameters Φ9；
2. it is molded a mould (1.2):By having a upper mould (1.21) for macropore on a mould and having next mould (1.22) of aperture under a mould
Composition:
The work station product external diameter Φ 1.4 of macropore diameter Φ 1.21=mono- on one mould；
Macropore includes the height H1.21 of chamfering more than a work station product height H1.4 on one mould；
Diameter of phi 1.4A after the work station product chamferings of small aperture Φ 1.22=mono- under one mould；
3. a mould thimble (1.3):One mould thimble upper end external diameter Φ 1.3 is small in small aperture Φ 1.22 under a mould, between the two between
Gap coordinates；
2) mould of cold-heading two (2) is provided with from top to bottom:
1. two stamping rod (2.1):The work station product external diameter Φ 1.4 of two stamping rod outside diameter Φ 2.1=mono-；
2. two moulds (2.2) are molded:By having upper two mould (2.21) of macropore on two moulds and having lower two mould (2.22) of aperture under two moulds
Composition；
The work station product external diameter Φ 2.4 of macropore diameter Φ 2.21=bis- on two moulds；
Macropore includes the height H2.21 of chamfering more than two work station product height H2.4 on two moulds；
Diameter of phi 2.4A after the work station product chamferings of small aperture Φ 2.22=bis- under two moulds；
3) mould of cold-heading three (3) is provided with from top to bottom:
1. set and (3.1A) and the three stamping cores (3.1B) in it are managed on three moulds:There is a step in stage casing, and hole is built with three at this
Stamping core back-moving spring (3.1C)；Three stamping core top external diameter Φ 3.1b of step epimere are more than outer under three stamping cores of step hypomere
Footpath Φ 3.1B；
Internal diameter Φ 3.1a are micro- under being managed on three moulds is more than external diameter Φ 3.1B under three stamping cores, and gap coordinates between the two；
Lower external diameter Φ 3.1A are managed on three moulds small in being molded macropore diameter Φ 3.21 on three moulds, gap cooperation between the two；
2. it is set as the mould of type three (3.2):There are macropore 3.21 and aperture 3.22 under three moulds communicated therewith on three moulds in top；
Macropore diameter Φ 3.21==flange blank external diameters Φ 3.41 on three moulds；
Macropore height H on three moulds3.21More than flange blank height H3.41
Three mould small aperture Φ 3.22=sleeve blank external diameters Φ 3.42；
Height=sleeve blank height H is vacated on aperture top under three moulds3.42；
3. three mould thimbles (3.3) are set:Three mould thimble top external diameter Φ 3.3=sleeve blank external diameters Φ 3.42；
4) mould of cold-heading four (4) is provided with from top to bottom:
1. (4.1A) and the four stamping cores (4.1B) in it are managed on four moulds:There is a step in stage casing, and hole is built with four moulds at this
Rush core back-moving spring (4.1C)；Four stamping core top external diameter Φ 4.1b of step epimere are more than external diameter under four stamping cores of step hypomere
Φ4.1B；
Internal diameter Φ 4.1a are micro- under being managed on four moulds is more than external diameter Φ 4.1B under four stamping cores, and gap coordinates between the two；
Lower external diameter Φ 4.1A are managed on four moulds small in being molded macropore diameter Φ 4.21 on four moulds, gap cooperation between the two；
2. the mould of shaping four (4.2) provided with aperture (4.22) under macropore (4.21), four moulds on four moulds:
The external diameter Φ 4.4A of the station flanges of macropore external diameter Φ 4.21=tetra- on four moulds
Macropore height H on four moulds4.21More than four station flange height H4.4A
The station sleeve outer diameter Φ 4.4B of small aperture Φ 4.22=tetra- under four moulds
3. four mould thimbles (4.3) are set:There are four mould thimble heads (4.31) on four mould thimble tops；Four mould apertures (4.22) are built with four
The outer ejector sleeve (4.3A) of four stations of the work station product of release four of mould thimble movement；
Thick preceding hole (4.41) shape of the station collar of four mould thimble head (4.31) shapes=tetra-；
Station sleeve (4.4B) leading portion of outer ejector sleeve (4.3A) the shape of cross section size of four stations=tetra- is containing the thick preceding hole (4.41) of the collar
Cross sectional shape size；The outer ejector sleeve set location of four stations is away from the height H4.4B that aperture top surface distance is four station sleeves；Four works
Gap coordinates between the outer ejector sleeve in position and four mould thimble heads (4.31)；
5) mould of cold-heading five (5) is provided with from top to bottom:
1. (5.1A) and its five interior stamping cores (5.1B) are managed on five moulds:There is a step in stage casing, and hole is built with five stamping cores at this
Back-moving spring (5.1C)；Five stamping core top external diameter Φ 5.1b of step epimere are more than external diameter Φ under five stamping cores of step hypomere
5.1B；
Internal diameter Φ 5.1a are micro- under being managed on five moulds is more than external diameter Φ 5.1B under five stamping cores, and gap coordinates between the two；
Lower external diameter Φ 5.1A are managed on five moulds small in being molded macropore (5.21) aperture Φ 5.21 on five moulds, gap cooperation between the two is 2.
There are on five moulds aperture (5.22), the mould of shaping five (5.2) of five mould aperture top surface circular bosses (5.23) under macropore (5.21), five moulds:
The external diameter Φ 5.4A=collar finished product flange outer diameter Φ A of the station flanges of macropore diameter Φ 5.21=five on five moulds；
Macropore height H on five moulds5.21More than five station flange height H5.4A；
The station collar external diameter Φ 5.4B=collar finished product sleeve outer diameter Φ B of small aperture Φ 5.22=five under five moulds；
The station sleeve of five mould aperture top surface circular bosses (5.23) shapes=five and flange connections groove (5.4C) shape=collar
Finished product (7) middle sleeve and flange connections groove (7A1) shape；
3. five mould thimble (5.3):There are five mould thimble heads (5.31) on five mould thimble tops, for processing aperture in the collar (5.42)；
Five stamping core (5.1B) heads are used to process aperture after the collar (5.43)；Five mould apertures (5.22) are produced built with five stations are released
The outer ejector sleeve (5.3A) of five stations of product；
In five mould thimble head (5.31) shape=collars after aperture (5.42) shape=collar in aperture (5.43) shape=sleeve
Aperture (7.1) shape；
Station sleeve (5.42) front large hole containing the collar (5.41) leading portion of outer ejector sleeve (5.3A) the shape of cross section size of five stations=five
Cross sectional shape size；
Outer ejector sleeve (5.3A) set location of five stations is away from the height H5.4B that aperture top surface is five station sleeves；The outer ejector sleeve of five stations
Gap coordinates between (5.3A) and five mould thimble heads (5.31)；
6) perforating die (6) is provided with from top to bottom:1. there is punching rod (6.1) top, and there is punching caput (6.1A) punching rod bottom；Punching
The external diameter of hole caput is small in aperture (7.1) aperture in collar finished product flange, between the two gap cooperation；2. lower section sets forming and punching
There is discharge through hole (6.2A) at mould (6.2), center；Discharge through hole is connected with the waste material device of outside or subsurface.
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| CN201710234670.3A CN107042277B (en) | 2017-04-12 | 2017-04-12 | Box car inner riveting type lantern ring forming method and mold |
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| CN201710234670.3A CN107042277B (en) | 2017-04-12 | 2017-04-12 | Box car inner riveting type lantern ring forming method and mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705907A (en) * | 2019-10-24 | 2021-04-27 | 邱晨 | Manufacturing method and manufacturing device of prefabricated part connecting sleeve |
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| US4607514A (en) * | 1984-05-07 | 1986-08-26 | The Nippert Company | Method of forming a metal part having an annular flange |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112705907A (en) * | 2019-10-24 | 2021-04-27 | 邱晨 | Manufacturing method and manufacturing device of prefabricated part connecting sleeve |
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