CN101058106A - Guiding protection equipment for exactitude long thin embossing die and reinforced method for its guiding surface - Google Patents

Guiding protection equipment for exactitude long thin embossing die and reinforced method for its guiding surface Download PDF

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Publication number
CN101058106A
CN101058106A CN 200710028240 CN200710028240A CN101058106A CN 101058106 A CN101058106 A CN 101058106A CN 200710028240 CN200710028240 CN 200710028240 CN 200710028240 A CN200710028240 A CN 200710028240A CN 101058106 A CN101058106 A CN 101058106A
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Prior art keywords
guiding
punch
protective sleeve
guiding protective
elongated
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CN100464892C (en
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黄珍媛
阮锋
罗建东
肖明
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South China University of Technology SCUT
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South China University of Technology SCUT
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Publication of CN100464892C publication Critical patent/CN100464892C/en
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  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

A precision long male die guide protective device comprises the top cushion plate, male die retaining plate, thin long male die, stripper plate, screw, clamp, dual directional guide sleeve, protective sleeve sub guide surface, protective sleeve main guide surface, male die installation section and male die working phase, the said reinforcement method for the guiding surface composed of supersonic wave oil removal processing, derusting for the supersonic wave, chemical compound plating and heat treatment. It can be low anticorrosion, low hardness, low price, easy for processing, with the produced dual guiding protective sleeve enjoying high antiwearing feature, high level hardness, self lubricating, increased protective feature, reduced sticking wearing and improved durability.

Description

The intensifying method of the guiding protective device of accurate elongated punch and guiding profile thereof
Technical field
The present invention relates to the guiding resist technology of punch, the intensifying method of the guiding protective device of the elongated punch of particularly a kind of precision and guiding profile thereof.
Background technology
There is a lot of Small Holes position on the products such as electronics, electrical equipment, automobile and instrument, need uses accurate elongated punch and carry out the stamping-out shaping.The aperture blanking punch has characteristics such as structure is carefully grown, strength and stiffness difference, in the stamping-out process, forms problems such as punch fractures easily.At present; prevent that the method that elongated punch fractures from mainly being to adopt punch guiding protective sleeve device; and the punch protective sleeve of prior art is to adopt single guiding form; its major defect is that the guiding accuracy at position is the same about the sheath; the guiding position concentrates on the punch active section; guiding accuracy is limited, and is shorter to the protection length of punch.Simultaneously, the material of protective sleeve mostly adopts carbide alloy at present, and some shortcomings below main the existence: 1) the carbide alloy price is expensive; 2) carbide alloy is too high because of hardness, processing difficulties; 3) the punch material also adopts carbide alloy mostly at present, and protective sleeve and punch belong to Hardmetal materials together, are easy to generate adhesive wear.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art part, a kind of precision height is provided, protection length is long, has the guiding protective device of the accurate elongated punch of two guiding.
Another object of the present invention is to provide the intensifying method of guiding profile of the guiding protective device of the elongated punch of a kind of precision; after replacing carbide alloy and make above-mentioned protective sleeve with the tool steel of cheapness; protective sleeve guiding profile is carried out Ni-P to be strengthened; not only can solve problem effectively with its intensity, hardness, wearability deficiency behind the cheap tool steel replacement carbide alloy manufacturing protective sleeve; and can reduce adhesive wear between protective sleeve and the punch significantly, and make protective sleeve have the function of self-lubricating.Coating is nickel phosphorus nanometer silicon carbide, the content of phosphorus in coating is 5-9% (percentage by weight, down together), nickel is 91-95%, and nanometer silicon carbide has trace, after heat treatment, coating hardness reaches 900-1100Hv, nanometer silicon carbide hard point is embedded in the coating, and coating is very wear-resisting, combines well with matrix surface.
The guiding protective device of the elongated punch of precision of the present invention comprises upper padding plate, punch retainer, discharging backing plate, elongated punch, stripper, screw, clamping plate, two guiding protective sleeve, protective sleeve time spigot surface, protective sleeve master spigot surface, punch construction section and punch active section; Described punch retainer, elongated punch, discharging backing plate, two guiding protective sleeve, stripper are positioned at a side of upper padding plate; Described elongated punch is positioned in the punch retainer, and clamps by clamping plate and screw; Fixedly connected by screw between described upper padding plate and the punch retainer; Described upper padding plate, punch retainer, elongated punch, punch clamping plate and screw constitute a fixation kit I; Described two guiding protective sleeve is embedded in the stripper, fixedlys connected described discharging backing plate, stripper and another assembly of the fixedly connected formation of protective sleeve threes II that couple leads between stripper and the discharging backing plate by screw; Flexibly connect by discharging screw and spring structure between said modules I and the assembly II.
Described two guiding protective sleeve master guide section matches with elongated punch construction section; two guiding protective sleeves time guide section matches with the active section of elongated punch, and the fit clearance of two guiding protective sleeve master's guide sections and elongated punch construction section is slightly less than the fit clearance between the active section of two lead inferior guide sections of protective sleeve and elongated punch.
The material of described elongated punch is a carbide alloy, and the material of two guiding protective sleeves is the general tool steel, and its surface is applied with nickel phosphorus nanometer silicon carbide chemical composite plating; the content of phosphorus is 5-9% in the coating; nickel is 91-95%, and nanometer silicon carbide has trace, and coating hardness is 900-1100Hv.
The intensifying method of the guiding profile of the guiding protective device of the elongated punch of a kind of precision; be earlier to two guiding protective sleeve ultrasonic wave oil removal treatment; then two guiding protective sleeve ultrasonic cleanings are handled; again two guiding protective sleeves are carried out Ni-P; at last two guiding protective sleeves are heat-treated, comprise the steps:
(1) at first to two guiding protective sleeve ultrasonic wave oil removal treatment, the temperature of described oil removing is arranged on 60-80 ℃, and the time is 10-15 minute, removes oil formula to be: NaOH (NaOH, 97% (percentage by weight)): 60-80g/L, sodium phosphate (Na 3PO 412H 2O, 97%): 25g/L, sodium carbonate (Na 2CO 3, 97%): 25g/L;
(2) then two guiding protective sleeve ultrasonic cleanings are handled, the temperature of rust cleaning is set to room temperature, and the time is 1-2 minute, and the rust cleaning prescription is: hydrochloric acid (HCl, 37%): 25ml/L, sulfuric acid (H 2SO 4, 98%): 5ml/L;
(3) more two guiding protective sleeves are carried out Ni-P, the temperature of Ni-P is arranged on 85-90 ℃, and the time is 90-120 minute, and the Ni-P prescription is nickelous sulfate (NiSO 46H 2O, 98%): 30g/L, sodium hypophosphite (NaH 2PO 2H 2O, 99.5%): 20g/L, citric acid (C 6H 8O 7H 2O, 99%): 10g/L, lactic acid (C 3H 6O 3, 88%): 40mm/L, ammonium acid fluoride (NH 4HF, 99.5%): 2g/L, sodium meter level carborundum (SiC, particle diameter is less than 20nm): 5g/L;
(4) at last two guiding protective sleeves are heat-treated, heat treated temperature is arranged on 390-410 ℃, and temperature retention time is 1 hour in holding furnace.
The present invention compared with prior art has following advantage and beneficial effect:
(1) the two guiding of elongated punch of the present invention protective sleeve comprises main spigot surface and time two parts of spigot surface; construction section and active section to elongated punch leads simultaneously respectively; the fit clearance of main spigot surface and punch construction section is slightly less than the fit clearance of time spigot surface and punch active section, and whole guiding accuracy is than single guiding protective sleeve height.
(2) the inventive method has increased the guiding protection to elongated punch construction section, and total guiding protection length increases, and is particularly suitable for the protection of fine blanking punch.
(3) the inventive method can be saved the mold materials expense.Because traditional guiding protective sleeve material is generally selected the material with the identical wearability of elongated punch for use, as carbide alloy, superior alloy steel etc., these materials not only price are expensive, and difficult processing; After selecting chemically composited electroplating method for use, the material of guiding protective sleeve can be selected a lot of general tool steel material of low price for use, and these materials are low price not only, and has good processing characteristics.
(4) Technology of Chemical Composite Plating of the present invention and Technology for Heating Processing; not only can solve problem effectively with its intensity, hardness, wearability deficiency behind the suitable valency tool steel replacement carbide alloy manufacturing protective sleeve; and can reduce adhesive wear between protective sleeve and the punch significantly, and make protective sleeve have the function of self-lubricating.Coating is nickel phosphorus nanometer silicon carbide, and the content of phosphorus in coating is 5-9%, and nickel is 91-95%, and nanometer silicon carbide has trace; After heat treatment, coating hardness is 900-1100Hv, and nanometer silicon carbide hard point is embedded in the coating, and coating is very wear-resisting, combines well with matrix surface.
Description of drawings
The structural representation of the two guiding of the elongated punch of Fig. 1 protective sleeve;
Among the figure 1, upper padding plate; 2, punch retainer; 3, discharging backing plate; 4, elongated punch; 5, stripper; 6, screw; 7, clamping plate; 8, two guiding protective sleeves (about two);
The two guiding of the elongated punch of Fig. 2 protective sleeve guiding profile schematic diagram;
Among the figure 9, protective sleeve time spigot surface; 10, protective sleeve master spigot surface; 11, punch construction section; 12, punch active section.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1:
Be illustrated in figure 1 as the structure of the two guiding of elongated punch protective sleeve, described punch retainer 2, discharging backing plate 3, elongated punch 4, stripper 5 and two guiding protective sleeve 8 are positioned at a side of upper padding plate 1; Described elongated punch 4 is positioned in the punch retainer 2, and clamps by clamping plate 7 and screw 6; Fixedly connected by screw between described upper padding plate 1 and the punch retainer 2; Upper padding plate 1, punch retainer 2, elongated punch 4, punch clamping plate 7 and screw 6 promptly constitute a fixation kit I thus.Described two guiding protective sleeve 8 is embedded in the stripper 5, fixedlys connected discharging backing plate 3, stripper 5 and another assembly of the fixedly connected formation of protective sleeve 8 threes II that couple leads between stripper 5 and the discharging backing plate 3 by screw.Flexibly connect by discharging screw and spring structure between assembly I and the assembly II.
As shown in Figure 2; two guiding protective sleeve master guide sections 10 match with elongated punch construction section 11; two guiding protective sleeves time guide section 9 matches with the active section 12 of elongated punch, and the fit clearance of two guiding protective sleeve master guide sections 10 and elongated punch construction section 11 is slightly less than the fit clearance between the active section 12 of two lead inferior guide sections 9 of protective sleeve and elongated punch.
Embodiment 2:
In Fig. 1, the material of elongated punch 4 is carbide alloy CD650, and the material of two guiding protective sleeves 8 is the general tool steel; its surface is applied with nickel phosphorus nanometer silicon carbide composite deposite, and the content of phosphorus is 5-9% in the coating, and nickel is 91-95%; nanometer silicon carbide has trace, and coating hardness is 900-1100Hv.
The operating procedure that the guiding profile of embodiment 1 described device is applied coating is for being that two guiding protective sleeves are carried out ultrasonic wave oil removing, rust cleaning, Ni-P, heat treatment.The intensifying method of the guiding protective device guiding profile of the elongated punch of described precision comprises following processing step successively:
(1) at first to two guiding protective sleeve ultrasonic wave oil removal treatment, the temperature of described oil removing is arranged on 80 ℃, and the time is 10 minutes, removes oil formula to be: NaOH (NaOH, 97% (percentage by weight)): 60-80g/L, sodium phosphate (Na 3PO 412H 2O, 97%): 25g/L, sodium carbonate (Na 2CO 3, 97%): 25g/L;
(2) then two guiding protective sleeve ultrasonic cleanings are handled, the temperature of rust cleaning is set to room temperature, and the time is 2 minutes, and the rust cleaning prescription is: hydrochloric acid (HCl, 37%): 25ml/L, sulfuric acid (H 2SO 4, 98%): 5ml/L;
(3) more two guiding protective sleeves are carried out Ni-P, the temperature of Ni-P is arranged on 85 ℃, and the time is 120 minutes, and the Ni-P prescription is nickelous sulfate (NiSO 46H 2O, 98%): 30g/L, sodium hypophosphite (NaH 2PO 2H 2O, 99.5%): 20g/L, citric acid (C 6H 8O 7H 2O, 99%): 10g/L, lactic acid (C 3H 6O 3, 88%): 40mm/L, ammonium acid fluoride (NH 4HF, 99.5%): 2g/L, sodium meter level carborundum (SiC, particle diameter is less than 20nm): 5g/L;
(4) at last two guiding protective sleeves are heat-treated, heat treated temperature is arranged on 390 ℃, and temperature retention time is 1 hour in holding furnace.
Effect: the Ni-P reinforcement process that is applied to the two guiding of elongated punch protective sleeve; by ultrasonic wave oil removing, rust cleaning, Ni-P, heat treatment process, obtain the nickel phosphorus nanometer silicon carbide composite deposite that binding ability is good, hardness reaches 900Hv and has self-lubricating property on the two guiding of elongated punch protective sleeve surface.
Embodiment 3
Reinforcement process to the guiding protective device of the elongated punch of embodiment 1 described precision guiding profile:
(1) at first to two guiding protective sleeve ultrasonic wave oil removal treatment, the temperature of described oil removing is arranged on 60 ℃, and the time is 15 minutes, removes oil formula to be: NaOH (NaOH, 97% (percentage by weight)): 60-80g/L, sodium phosphate (Na 3PO 412H 2O, 97%): 25g/L, sodium carbonate (Na 2CO 3, 97%): 25g/L;
(2) then two guiding protective sleeve ultrasonic cleanings are handled, the temperature of rust cleaning is set to room temperature, and the time is 1 minute, and the rust cleaning prescription is: hydrochloric acid (HCl, 37%): 25ml/L, sulfuric acid (H 2SO 4, 98%): 5ml/L;
(3) more two guiding protective sleeves are carried out Ni-P, the temperature of Ni-P is arranged on 90 ℃, and the time is 90 minutes, and the Ni-P prescription is nickelous sulfate (NiSO 46H 2O, 98%): 30g/L, sodium hypophosphite (NaH 2PO 2H 2O, 99.5%): 20g/L, citric acid (C 6H 8O 7H 2O, 99%): 10g/L, lactic acid (C 3H 6O 3, 88%): 40mm/L, ammonium acid fluoride (NH 4HF, 99.5%): 2g/L, sodium meter level carborundum (SiC, particle diameter is less than 20nm): 5g/L;
(4) at last two guiding protective sleeves are heat-treated, heat treated temperature is arranged on 410 ℃, and temperature retention time is 1 hour in holding furnace.
Effect: obtain the nickel phosphorus nanometer silicon carbide composite deposite that binding ability is good, hardness reaches 1100Hv and has self-lubricating property on the two guiding of elongated punch protective sleeve surface.
Embodiment 4
Reinforcement process to the guiding protective device of the elongated punch of embodiment 1 described precision guiding profile:
(1) at first to two guiding protective sleeve ultrasonic wave oil removal treatment, the temperature of described oil removing is arranged on 70 ℃, and the time is 13 minutes, removes oil formula to be: NaOH (NaOH, 97% (percentage by weight)): 70g/L, sodium phosphate (Na 3PO 412H 2O, 97%): 25g/L, sodium carbonate (Na 2CO 3, 97%): 25g/L;
(2) then two guiding protective sleeve ultrasonic cleanings are handled, the temperature of rust cleaning is set to room temperature, and the time is 1 minute, and the rust cleaning prescription is: hydrochloric acid (HCl, 37%): 25ml/L, sulfuric acid (H 2SO 4, 98%): 5ml/L;
(3) more two guiding protective sleeves are carried out Ni-P, the temperature of Ni-P is arranged on 87 ℃, and the time is 100 minutes, and the Ni-P prescription is nickelous sulfate (NiSO 46H 2O, 98%): 30g/L, sodium hypophosphite (NaH 2PO 2H 2O, 99.5%): 20g/L, citric acid (C 6H 8O 7H 2O, 99%): 10g/L, lactic acid (C 3H 6O 3, 88%): 40mm/L, ammonium acid fluoride (NH 4HF, 99.5%): 2g/L, sodium meter level carborundum (SiC, particle diameter is less than 20nm): 5g/L;
(4) at last two guiding protective sleeves are heat-treated, heat treated temperature is arranged on 400 ℃, and temperature retention time is 1 hour in holding furnace.
Effect: obtain the nickel phosphorus nanometer silicon carbide composite deposite that binding ability is good, hardness reaches 1000Hv and has self-lubricating property on the two guiding of elongated punch protective sleeve surface.

Claims (4)

1, the guiding protective device of the elongated punch of a kind of precision, it is characterized in that, comprise upper padding plate, punch retainer, discharging backing plate, elongated punch, stripper, screw, clamping plate, two guiding protective sleeve, protective sleeve time spigot surface, protective sleeve master spigot surface, punch construction section and punch active section; Described punch retainer, elongated punch, discharging backing plate, two guiding protective sleeve, stripper are positioned at a side of upper padding plate; Described elongated punch is positioned in the punch retainer, and clamps by clamping plate and screw; Fixedly connected by screw between described upper padding plate and the punch retainer; Described upper padding plate, punch retainer, elongated punch, punch clamping plate and screw constitute a fixation kit I; Described two guiding protective sleeve is embedded in the stripper, fixedlys connected described discharging backing plate, stripper and another assembly of the fixedly connected formation of protective sleeve threes II that couple leads between stripper and the discharging backing plate by screw; Flexibly connect by discharging screw and spring structure between said modules I and the assembly II.
2, guiding protective device according to claim 1; it is characterized in that; described two guiding protective sleeve master guide section matches with elongated punch construction section; two guiding protective sleeves time guide section matches with the active section of elongated punch, and the fit clearance of two guiding protective sleeve master's guide sections and elongated punch construction section is slightly less than the fit clearance between the active section of two lead inferior guide sections of protective sleeve and elongated punch.
3, guiding protective device according to claim 1; it is characterized in that; the material of described elongated punch is a carbide alloy; the material of two guiding protective sleeves is the general tool steel; its surface is applied with nickel phosphorus nanometer silicon carbide chemical composite plating, and the content of phosphorus is 5-9% in the coating, and nickel is 91-95%; nanometer silicon carbide has trace, and coating hardness is 900-1100Hv.
4, the intensifying method of the guiding profile of the guiding protective device of the elongated punch of a kind of precision is characterized in that, comprises the steps:
(1) at first to two guiding protective sleeve ultrasonic wave oil removal treatment, the temperature of described oil removing is arranged on 60-80 ℃, and the time is 10-15 minute, removes oil formula to be: NaOH (NaOH, 97% (percentage by weight)): 60-80g/L, sodium phosphate (Na 3PO 412H 2O, 97%): 25g/L, sodium carbonate (Na 2CO 3, 97%): 25g/L;
(2) then two guiding protective sleeve ultrasonic cleanings are handled, the temperature of rust cleaning is set to room temperature, and the time is 1-2 minute, and the rust cleaning prescription is: hydrochloric acid (HCl, 37%): 25ml/L, sulfuric acid (H 2SO 4, 98%): 5ml/L;
(3) more two guiding protective sleeves are carried out Ni-P, the temperature of Ni-P is arranged on 85-90 ℃, and the time is 90-120 minute, and the Ni-P prescription is nickelous sulfate (NiSO 46H 2O, 98%): 30g/L, sodium hypophosphite (NaH 2PO 2H 2O, 99.5%): 20g/L, citric acid (C 6H 8O 7H 2O, 99%): 10g/L, lactic acid (C 3H 6O 3, 88%): 40mm/L, ammonium acid fluoride (NH 4HF, 99.5%): 2g/L, sodium meter level carborundum (SiC, particle diameter is less than 20nm): 5g/L;
(4) at last two guiding protective sleeves are heat-treated, heat treated temperature is arranged on 390-410 ℃, and temperature retention time is 1 hour in holding furnace.
CNB2007100282402A 2007-05-25 2007-05-25 Guiding protection equipment for exactitude long thin embossing die and reinforced method for its guiding surface Expired - Fee Related CN100464892C (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966541A (en) * 2010-08-17 2011-02-09 浙江龙华汽配制造有限公司 Reinforcing structure of punching die for diaphragm spring
CN102205374A (en) * 2011-03-30 2011-10-05 无锡国盛精密模具有限公司 Fine blanking male die guide protection device
CN103372610A (en) * 2012-04-17 2013-10-30 成都玺汇科技有限公司 Male die protector
CN103433360A (en) * 2013-08-30 2013-12-11 太仓市微贯机电有限公司 Guiding type small-hole blanking die
CN104249109A (en) * 2013-06-26 2014-12-31 安特(苏州)精密机械有限公司 Quick-detachment type flanging pre-punching punch head device
CN104338827A (en) * 2013-08-07 2015-02-11 江苏博俊工业科技股份有限公司 Anti-pull-cut punching die with deformed small punching head
CN107695178A (en) * 2017-10-19 2018-02-16 深圳巴斯巴科技发展有限公司 Copper bar punches diel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249120A (en) * 2013-06-26 2014-12-31 安特(苏州)精密机械有限公司 Slender punch pin blank holder device

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US4166403A (en) * 1977-08-10 1979-09-04 Houdaille Industries, Inc. Method of making a rigidly supported molded plastics material punch guide and stripper
CN85201149U (en) * 1985-04-01 1986-08-06 李建华 Combined opposite punching-shearing die for punching burr-free hole
DE3937426C1 (en) * 1989-11-10 1991-02-21 Manfred 7859 Efringen-Kirchen De Emmert
CN2201996Y (en) * 1994-08-01 1995-06-28 赖炳文 Guiding-pin safe locker for mold
JPH10286638A (en) * 1997-04-14 1998-10-27 Nisshinbo Ind Inc Press die
CN2680373Y (en) * 2004-02-26 2005-02-23 北新建材(集团)有限公司 Side guiding structure of long rod stamping mould
CN100453200C (en) * 2006-06-08 2009-01-21 黄步成 Punching die frame

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966541A (en) * 2010-08-17 2011-02-09 浙江龙华汽配制造有限公司 Reinforcing structure of punching die for diaphragm spring
CN102205374A (en) * 2011-03-30 2011-10-05 无锡国盛精密模具有限公司 Fine blanking male die guide protection device
CN102205374B (en) * 2011-03-30 2012-10-10 无锡国盛精密模具有限公司 Fine blanking male die guide protection device
CN103372610A (en) * 2012-04-17 2013-10-30 成都玺汇科技有限公司 Male die protector
CN104249109A (en) * 2013-06-26 2014-12-31 安特(苏州)精密机械有限公司 Quick-detachment type flanging pre-punching punch head device
CN104338827A (en) * 2013-08-07 2015-02-11 江苏博俊工业科技股份有限公司 Anti-pull-cut punching die with deformed small punching head
CN103433360A (en) * 2013-08-30 2013-12-11 太仓市微贯机电有限公司 Guiding type small-hole blanking die
CN107695178A (en) * 2017-10-19 2018-02-16 深圳巴斯巴科技发展有限公司 Copper bar punches diel

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Assignee: Guangzhou Dongshen Machinery Co.,Ltd.

Assignor: South China University of Technology

Contract fulfillment period: 2009.3.31 to 2015.6.24 contract change

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Denomination of invention: Guiding protection equipment for exactitude long thin embossing die and reinforced method for its guiding surface

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Record date: 2009.8.17

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