CN100464892C - Method for Strengthening the Guide Profile in the Guide Protector of the Precision Slender Punch - Google Patents
Method for Strengthening the Guide Profile in the Guide Protector of the Precision Slender Punch Download PDFInfo
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- CN100464892C CN100464892C CNB2007100282402A CN200710028240A CN100464892C CN 100464892 C CN100464892 C CN 100464892C CN B2007100282402 A CNB2007100282402 A CN B2007100282402A CN 200710028240 A CN200710028240 A CN 200710028240A CN 100464892 C CN100464892 C CN 100464892C
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Abstract
本发明涉及一种精密细长凸模的导向保护装置，包括上垫板、凸模固定板、卸料垫板、细长凸模、卸料板、螺钉、夹板、双导向保护套、保护套次导向面、保护套主导向面、凸模安装段和凸模工作段；所述导向保护装置的导向型面的强化方法，包括对双导向保护套超声波除油处理、超声波除锈处理、化学复合镀和热处理；该方法在低耐磨性、低硬度、低价格、易加工的普通工具钢材料加工成的导向保护套导向段上添加镍磷纳米碳化硅镀层，取代传统的用硬质合金之类高耐磨性、高硬度、高价格、难加工材料制造导向保护套的方法，得到的双导向保护套具有高耐磨性、高硬度和自润滑功能，增强对细长凸模的导向和保护，减小导向保护套和细长凸模之间的粘着磨损、提高寿命。
The invention relates to a guide protection device for a precise and elongated punch, including an upper backing plate, a punch fixing plate, a discharge backing plate, a slender punch, a discharge plate, screws, splints, a double-guiding protective cover, and a protective cover The secondary guide surface, the main guide surface of the protective sleeve, the punch installation section and the punch working section; the strengthening method of the guide surface of the guide protection device includes ultrasonic degreasing treatment, ultrasonic derusting treatment, chemical Composite plating and heat treatment; this method adds nickel-phosphorus nano-silicon carbide coating on the guide section of the guide protective sleeve processed by low wear resistance, low hardness, low price and easy-to-process common tool steel material, replacing the traditional hard alloy The method of manufacturing guide protective sleeves with high wear resistance, high hardness, high price, and difficult-to-process materials, the obtained double guide protection sleeves have high wear resistance, high hardness and self-lubricating functions, and enhance the guidance of the slender punch And protection, reduce the adhesive wear between the guide protective sleeve and the slender punch, and improve the life.
Description
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 A; Fixedly connected by screw B between described upper padding plate and the punch retainer; Described upper padding plate, punch retainer, elongated punch, clamping plate and screw A constitute a fixation kit I; Described two guiding protective sleeve is embedded in the stripper, fixedlys connected described discharging backing plate, stripper, two guiding protective sleeve and screw 3 another fixation kit of formation II by screw C between stripper and the discharging backing plate; Flexibly connect by discharging screw D and spring structure between said modules I and the assembly II.
Protective sleeve master spigot surface matches with elongated punch construction section, and protective sleeve time spigot surface matches with the punch active section, and the fit clearance of protective sleeve master spigot surface and punch construction section is slightly less than the fit clearance between protective sleeve time spigot surface and the punch active section.
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; respectively punch construction section and punch active section are led simultaneously; the fit clearance of protective sleeve master 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 the 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 A6; Fixedly connected by screw B 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 A6 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 C.Flexibly connect by discharging screw D 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;
Between be 2 minutes, 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 (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100282402A CN100464892C (en) | 2007-05-25 | 2007-05-25 | Method for Strengthening the Guide Profile in the Guide Protector of the Precision Slender Punch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100282402A CN100464892C (en) | 2007-05-25 | 2007-05-25 | Method for Strengthening the Guide Profile in the Guide Protector of the Precision Slender Punch |
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| Publication Number | Publication Date |
|---|---|
| CN101058106A CN101058106A (en) | 2007-10-24 |
| CN100464892C true CN100464892C (en) | 2009-03-04 |
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|---|---|---|---|
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Cited By (1)
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| 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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| JPH10286638A (en) * | 1997-04-14 | 1998-10-27 | Nisshinbo Ind Inc | Press die |
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2007
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Patent Citations (7)
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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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101058106A (en) | 2007-10-24 |
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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 Contract record no.: 2009440001270 Denomination of invention: Guiding protection equipment for exactitude long thin embossing die and reinforced method for its guiding surface Granted publication date: 20090304 License type: Exclusive license Record date: 2009.8.17 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.31 TO 2015.6.24; CHANGE OF CONTRACT Name of requester: GUANGZHOU DONGSHENG MACHINERY CO., LTD. Effective date: 20090817 |
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Granted publication date: 20090304 Termination date: 20120525 |