CN204657237U - A kind of silent chain many blanking Bright Punching compound dies - Google Patents
A kind of silent chain many blanking Bright Punching compound dies Download PDFInfo
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- CN204657237U CN204657237U CN201520169501.2U CN201520169501U CN204657237U CN 204657237 U CN204657237 U CN 204657237U CN 201520169501 U CN201520169501 U CN 201520169501U CN 204657237 U CN204657237 U CN 204657237U
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Abstract
The utility model relates to a kind of silent chain many blanking Bright Punching compound dies, comprise front die holder, rear die holder, front liner plate, front backing plate, front plate, caster, outer de-plate, rear plate and rear backing plate, multiple kicker is provided with in described caster, described kicker is connected with kicker drive unit with the connecting rod of front plate by running through front backing plate, the side central authorities that described caster is relative with outer de-plate are also provided with multiple die, each kicker stretches in corresponding die respectively, described front plate internal fixtion organizes red needle more, often organizing red needle stretches in corresponding caster respectively, and run through kicker, described outer de-plate is provided with many group blanking through holes, and the position of blanking through hole aligns with the position of corresponding red needle, the pothole of described die becomes matched in clearance with between the projection of outer de-plate, the utility model achieves to be produced in enormous quantities at a high speed, avoid waste of raw materials.
Description
Technical field
The utility model relates to a kind of mould, particularly relates to a kind of silent chain many blanking Bright Punching compound dies.
Background technology
Be different from chain roller in roller chain drives process and contact transmitting torque with sprocket wheel, the engagement system of quiet chain is that the flank of tooth of carrier bar contacts with sprocket wheel, in order to reduce the energy of the friction loss of quiet chain, usually needs to adopt Bright Punching to carrier bar contact portion.Be different from the hinges formed between roller chain bearing pin and sleeve, the hinges of quiet chain is formed by between bearing pin carrier bar, in order to improve the friction durability of chain, needs to adopt Bright Punching to the endoporus of carrier bar.
In order to obtain outside carrier bar and the bright cross section of endoporus simultaneously, single the structure of compound mould that the manufacture of existing quiet chain carrier bar adopts gap minimum usually or many progressive die burnishing-in structures.Minimum single the structure of compound mould efficiency in gap is low, and minimum blade clearance reduces the mold use life-span, usually needs to drop into a large amount of lathes and operative employee in high volume production process.And many progressive die extrusion structure waste of material are serious, usual utilization rate of raw materials can reduce about 15%, considerably increases the production cost of silent chain.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of silent chain many blanking Bright Punching compound dies, and this mould can realize many blankings, enhances productivity, and avoids waste of material, does not affect the mold use life-span again.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A kind of silent chain many blanking Bright Punching compound dies, comprise front die holder, rear die holder, front liner plate, front backing plate, front plate, caster, outer de-plate, rear plate and rear backing plate, connected by rolling guide pillar between described front die holder and rear die holder, described front liner plate, front backing plate, front plate and caster are fixed on the rear end face of front die holder from front to back successively, described rear plate and rear backing plate are fixed on the front end face of rear die holder from front to back successively, described outer de-plate is bolted on the front of rear plate, and outer taking off leaves gap between plate and rear plate, multiple kicker is provided with in described caster, described kicker is connected with kicker drive unit with the connecting rod of front plate by running through front backing plate, the side central authorities that described caster is relative with outer de-plate are also provided with multiple die, each kicker stretches in corresponding die respectively, described front plate internal fixtion organizes red needle more, often organizing red needle stretches in corresponding caster respectively, and run through kicker, described outer de-plate is provided with many group blanking through holes, and the position of blanking through hole aligns with the position of corresponding red needle, the aperture of described blanking through hole increases progressively successively by after forward direction, the pothole of described die becomes matched in clearance with between the projection of outer de-plate, and the cross section of pothole and projection is the open-delta that two tops are the first circular arc, and two triangles inner edge close to each other is connected by the second arc transition, two leg-of-mutton outside two other respectively by the two ends closed moulding of three-arc and straight line, the straight line of described pothole and the straight line of projection, the outside of pothole and the outside of projection, clearance distance between the inner edge of pothole and the inner edge of projection is L1, the three-arc of described pothole and the three-arc of projection, second circular arc of pothole and the second circular arc of projection, clearance distance between first circular arc of pothole and the first circular arc of projection is L2, the fit clearance distance of described red needle and blanking through hole is also L1, L1 is 0.005mm-0.02mm, L2 is 8-10 times of L1.
Preferably: be also provided with slip guide pillar between described caster and outer de-plate, and one end of slip guide pillar is fixed on rear plate.This guiding mechanism further increases the guiding accuracy of mould, in turn ensure that the guiding life-span, greatly reduces the maintenance frequency of mould.
Preferably: described front die holder is provided with cooling water channel, described cooling water channel runs through front liner plate, front backing plate, front plate successively.
Preferably: the overall material of the die of described compound die, projection and red needle is wolfram steel, and the contact surface of die, projection and red needle all carries out vanadinizing process.Vanadized layer has high hardness (more than 2700Hv), and tough wolfram steel matrix and the Vanadized layer of extreme hardness firmly link together, thus guarantee that Vanadized layer obtains enough supports, improve the service life of mold integral.
The utility model, by adopting the mould of this structure, achieves and produces at a high speed surface and the bright silent chain carrier bar of endoporus in enormous quantities, avoids waste of raw materials progressive die adopting burnishing-in mode to obtain euphotic belt cause.Simultaneously this mould structure to machine tool accuracy and feed mechanism less demanding, reduce equipment depreciation cost.
In addition, mould structure of the present utility model adopts 4 rolling guide pillars+4 slip guide structure of guide pillars, even if when the gap between punch and die is 0.01mm, still can realize many composite die high speed blankings.By adopting wolfram steel implantation technique, the large speed in service life of the part making mould easy to wear improves, and shortens the maintenance time of mould.Thus achieve quiet chain many blanking Bright Punching compound die efficient and long life stamping-outs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cross-sectional view of the present utility model.
Fig. 3 be die of the present utility model with projection coordinate schematic diagram.
Fig. 4 is the A portion partial enlarged drawing in Fig. 3.
Fig. 5 is the B portion partial enlarged drawing in Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is made a detailed explanation.
As Fig. 1, Fig. 2, Fig. 3, a kind of silent chain shown in Fig. 4 and Fig. 5 many blanking Bright Punching compound dies, comprise front die holder 1, rear die holder 2, front liner plate 3, front backing plate 4, front plate 5, caster 6, outer de-plate 7, rear plate 8 and rear backing plate 9, connected by rolling guide pillar 11 between described front die holder 1 and rear die holder 2, described front liner plate 3, front backing plate 4, front plate 5 and caster 6 are fixed on the rear end face of front die holder 1 from front to back successively, described rear plate 8 and rear backing plate 9 are fixed on the front end face of rear die holder 2 from front to back successively, described outer de-plate 7 is bolted on the front of rear plate 8, and outer taking off leaves gap between plate 7 and rear plate 8, multiple kicker 16 is provided with in described caster 6, described kicker 16 is connected with kicker drive unit with the connecting rod of front plate 5 by running through front backing plate 4, the side central authorities that described caster 6 is relative with outer de-plate 7 are also provided with multiple die 18, each kicker 16 stretches in corresponding die 18 respectively, described front plate 5 internal fixtion has many group red needles 15, often organizing red needle 15 is two, often organizing red needle 15 stretches in corresponding caster 6 respectively, and run through kicker 16, described outer de-plate 7 is provided with many group blanking through holes 13, often organize blanking through hole 13 and be also two, and the position of blanking through hole 13 aligns with the position of corresponding red needle 15, the aperture of described blanking through hole 13 increases progressively successively by after forward direction, the pothole of described die 18 becomes matched in clearance with between the projection 19 of outer de-plate 7, and the cross section of pothole and projection 19 is the open-delta that two tops are the first circular arc 25, and two triangles inner edge 24 close to each other is connected by the second circular arc 23 transition, two leg-of-mutton outside two other 22 respectively by the two ends closed moulding of three-arc 21 with straight line 20, the straight line 20 of described pothole and the straight line 20 of projection 19, the outside 22 of pothole and the outside 22 of projection 19, clearance distance between the inner edge 24 of pothole and the inner edge 24 of projection 19 is L1, the three-arc 21 of described pothole and the three-arc 21 of projection 19, second circular arc 23 of pothole and the second circular arc 23 of projection 19, clearance distance between first circular arc 25 of pothole and the first circular arc 25 of projection 19 is L2, described red needle 15 is also L1 with the fit clearance distance of blanking through hole 13, L1 is 0.005mm-0.02mm, L2 is 8-10 times of L1.
Also be provided with slip guide pillar 12 between described caster 6 and outer de-plate 7, and one end of slip guide pillar 12 is fixed on rear plate 8.Described front die holder 1 is provided with cooling water channel 10, and described cooling water channel 10 runs through front liner plate 3, front backing plate 4, front plate 5 successively.The overall material of the die of described compound die, projection 19 and red needle 15 is wolfram steel, and the contact surface of die, projection 19 and red needle 15 all carries out vanadinizing process.
This mould have employed 4 compound die blanking techniques, makes the punching speed of carrier bar improve 4 times, in order to ensure the guiding accuracy of mould, arrange outside mould that 4 rolling guide pillars tentatively lead, guiding accuracy is about 0.03mm, and disposed inboard 4 slip guide pillars, guiding accuracy is about 0.005mm.By these 8 leads, ensure the position degree in the process of mould relative motion, reduce the contact wear of consumable accessory, make mould still can high-speed stable running under minimum gap.
During production, steel plate 14 is placed between caster 6 and outer de-plate 7, open the start button of punch press, front die holder 1 and rear die holder 2 slowly close, caster 6 and outer de-plate 7 are closed gradually, projection 19 enters in pothole, and steel plate 14 is stamped out the little steel disc with mold shape, the position stamping-out light that fit clearance is less simultaneously; Red needle 15 is carried out endoporus stamping-out to little steel disc inside and is obtained carrier bar, and waste material is discharged from the gap between outer de-plate 7 and rear plate 8 by blanking through hole 13, because red needle 15 is less with the fit clearance of blanking through hole 13, makes carrier bar endoporus stamping-out light; Caster 6 is separated with outer de-plate 7, and carrier bar is embedded in pothole, and at this moment carrier bar is released pothole by kicker 16, carries out high pressure and wash away and blown off by carrier bar when simultaneously front die holder 1 is separated with rear die holder 2; Steel plate travels forward, and repeats said process, carries out stamping-out next time.
The position that fit clearance due to each position is different therefore less to fit clearance achieves Bright Punching, drops out the working space of mould in order to ensure multiple part in time simultaneously, carries out high pressure and washes away, prevent part from being weighed wounded or breaking mould when front and back mould is separated.
In order to improve die life, cooling water channel (adopt lubricating oil better effects if) is connected with slip guide pillar, and these cooling waters can prevent from producing iron filings in punching process or waste material enters slip guide pillar, produce simultaneously and glue together phenomenon after preventing guide pillar contact surface temperature from raising.In order to keep light and the dimensionally stable of carrier bar endoporus, red needle have employed the good wolfram steel of toughness and carries out metallic cementation technology, the surface of red needle is made to have high hardness, after long-time stamping-out, the change in size of chain plate hole is minimum, greatly reduce sharpening and the maintenance cycle of mould, improve production efficiency, reduce the labour intensity of workman.
Claims (4)
1. a silent chain many blanking Bright Punching compound dies, comprise front die holder (1), rear die holder (2), front liner plate (3), front backing plate (4), front plate (5), caster (6), outer de-plate (7), rear plate (8) and rear backing plate (9), connected by rolling guide pillar (11) between described front die holder (1) and rear die holder (2), described front liner plate (3), front backing plate (4), front plate (5) and caster (6) are fixed on the rear end face of front die holder (1) from front to back successively, described rear plate (8) and rear backing plate (9) are fixed on the front end face of rear die holder (2) from front to back successively, described outer de-plate (7) is bolted on the front of rear plate (8), and outer taking off leaves gap between plate (7) and rear plate (8), it is characterized in that: in described caster (6), be provided with multiple kicker (16), described kicker (16) is connected with kicker drive unit with the connecting rod of front plate (5) by running through front backing plate (4), the side central authorities that described caster (6) is relative with outer de-plate (7) are also provided with multiple die (18), each kicker (16) stretches in corresponding die (18) respectively, described front plate (5) internal fixtion organizes red needle (15) more, often organizing red needle (15) stretches in corresponding caster (6) respectively, and run through kicker (16), described outer de-plate (7) is provided with many groups blanking through hole (13), and the position of blanking through hole (13) aligns with the position of corresponding red needle (15), the aperture of described blanking through hole (13) increases progressively successively by after forward direction, the pothole of described die (18) becomes matched in clearance with between the projection (19) of outer de-plate (7), and the cross section of pothole and projection (19) is the open-delta that two tops are the first circular arc (25), and two triangles inner edge (24) close to each other is connected by the second circular arc (23) transition, two leg-of-mutton outside two other (22) respectively by the two ends closed moulding of three-arc (21) with straight line (20), the straight line (20) of described pothole and the straight line (20) of projection (19), the outside (22) of pothole and the outside (22) of projection (19), clearance distance between the inner edge (24) of pothole and the inner edge (24) of projection (19) is L1, the three-arc (21) of described pothole and the three-arc (21) of projection (19), second circular arc (23) of pothole and second circular arc (23) of projection (19), clearance distance between first circular arc (25) of pothole and first circular arc (25) of projection (19) is L2, described red needle (15) is also L1 with the fit clearance distance of blanking through hole (13), L1 is 0.005mm-0.02mm, L2 is 8-10 times of L1.
2. a kind of silent chain according to claim 1 many blanking Bright Punching compound dies, it is characterized in that: between described caster (6) and outer de-plate (7), be also provided with slip guide pillar (12), and one end of slip guide pillar (12) is fixed on rear plate (8).
3. a kind of silent chain according to claim 1 many blanking Bright Punching compound dies, it is characterized in that: described front die holder (1) is provided with cooling water channel (10), described cooling water channel (10) runs through front liner plate (3), front backing plate (4), front plate (5) successively.
4. a kind of silent chain according to claim 1 many blanking Bright Punching compound dies, it is characterized in that: the overall material of the die of described compound die, projection (19) and red needle (15) is wolfram steel, and the contact surface of die, projection (19) and red needle (15) all carries out vanadinizing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169501.2U CN204657237U (en) | 2015-03-25 | 2015-03-25 | A kind of silent chain many blanking Bright Punching compound dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169501.2U CN204657237U (en) | 2015-03-25 | 2015-03-25 | A kind of silent chain many blanking Bright Punching compound dies |
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| Publication Number | Publication Date |
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| CN204657237U true CN204657237U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520169501.2U Withdrawn - After Issue CN204657237U (en) | 2015-03-25 | 2015-03-25 | A kind of silent chain many blanking Bright Punching compound dies |
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| CN (1) | CN204657237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741438A (en) * | 2015-03-25 | 2015-07-01 | 杭州东华链条集团有限公司 | Silent chain multi-particle blanking bright blanking compound die |
-
2015
- 2015-03-25 CN CN201520169501.2U patent/CN204657237U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741438A (en) * | 2015-03-25 | 2015-07-01 | 杭州东华链条集团有限公司 | Silent chain multi-particle blanking bright blanking compound die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150923 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |