CN207914390U - Convex for the microreplicated shaped hole of SG abrasive materials inlays mould, cavity plate and mold, system - Google Patents

Abstract

The utility model discloses a kind of mould, cavity plate and mold, system are inlayed for the convex of the microreplicated shaped hole of SG abrasive materials, the utility model is according to the size of workpiece and the related size of edge-lapped value and the manufacture of related die, the distribution situation for having adjusted punch member determines the number of punch member according to the size of the size of blanking pressure and edge-lapped value.The automatic feeding system designed according to the characteristic of stepper motor coordinates the pattern type mentioned in the utility model, and cooperate the system of processing that can be realized and can continue processing punching.

Description

Convex for the microreplicated shaped hole of SG abrasive materials inlays mould, cavity plate and mold, system

Technical field

The utility model is related to pressure processing field more particularly to thin plate Process and high form accuracy require it is convex, Cavity plate and mold, system.

Background technology

A kind of novel SG abrasive particle grinding wheels released on international markets in recent years, its grinding performance is between superhard Cubic boron nitride (CBN) grinding wheel and common corundum grinding wheel between, processing performance and service life will be far above corundum wheel, Moderate cost, but have higher requirements to grinding machine unlike CBN grinding wheels, therefore the favor and welcome of users have been obtained, Its using face is growing.It is to be synthesized using colloidal sol-gel (Sol-Gel) technique by the corundum crystal that crystal grain is submicron order And be made through sintering, because abrasive grain is microstructure, there are many brilliant solution faces, it is only micro- under external force or in dressing and finishing Crystalline substance falls off, and constantly generates sharp cutting edge, and self-sharpening is good, and peeling is less, and the grinding wheel made of SG abrasive grains has been widely used In fields such as aerospace, automobile, bearing, instrument and meters.

The shape of SG abrasive grains is determined that the processing in micro shaping hole at present is mainly using laser processing, electrolysis by its micro shaping hole The processing methods such as processing, electrical discharge machining and wire cutting, processing efficiency is low, is difficult to realize batch production, and the contour shape in hole It is uncontrollable.

Through retrieval, Patent No. ZL20120537260 discloses a kind of method of laser processing profiled holes, is swashed using femtosecond The method in light working special-shaped hole on metal ensures that the processing of circular hole and profiled holes is located on same station, with high-precision control System support ensure that the positional precision of circular hole in profiled holes hole.Utilize a swinging axle of fine motion two-dimensional stage and five shaft platforms A linear axis carry out motion synthesis, add the real-time control of laser shutter, by putting into line, line at face, face adult Primitive rule.The utility model can accurately control the various special-shaped shapes of laser beam tool sharpening, and process multiple When profiled holes, precision stability is poor, and processing efficiency is low.

Through retrieval, Patent No. ZL201611148984.3 discloses a kind of micro hole machining method and apparatus, in pipe electricity Pole connect electrical discharge machining pulse power and Electrolyzed Processing power supply dual power supply with workpieces processing both ends, by controlling electrical discharge machining pulse power And the machined parameters of Electrolyzed Processing power supply realize micro hole electrolysis and the compound controllable processing of electric spark.Single electric spark can be removed Process the efficiency and machining accuracy when recast layer, burr and the single Electrolyzed Processing micro hole of raising that micro hole generates.The reality Preferable micro hole machining surface quality, higher processing efficiency and machining accuracy can be obtained with novel, but cannot achieve Batch production and the form accuracy for ensureing micropore.

Through retrieval, Patent No. ZL2005100464238 discloses a kind of group act on sets electrical discharge machining of large quantity micropore Process and device install single electrode and V-groove is fixed respectively by being positioned in V-groove on library in many V-grooves for processing Position library is installed on spiral adjustment side trench structure, forms the method for adjustment of group act on sets and group act on sets needed for group's hole machined, group's electricity The other end connecting machine tool main shaft of pole.The utility model realizes the batch production of micro hole, but when this method is for group's hole machined, The damage of partial electrode influences the precision stability of group hole machined.

Through retrieval, Patent No. ZL2012105247533 disclose a kind of micro hole plasma discharge processing unit (plant) and Processing method carries out micro hole using the discharge plasma space formed between minute diameter electrode and micro hole hole wall to be processed Processing.Storage container is easy to explosion after the carbon tetrafluoride gas chance high temperature that the utility model uses and it causes greenhouse effects Effect be thousands of times of carbon dioxide, it is unfavorable to be brought to safe operation and environment.

The method in the working special-shaped hole of a kind of electrolysis line cutting technology in the prior art, according to metal anode electrochemical dissolution Principle, using line electrode as tool cathode to the processing method of workpiece ablation.And line electrode and work are driven by motion platform Part, which does relative motion, realizes that part shapes, and effectively reduces the fillet radius of processing pass and improves the processing effect of profiled holes Rate, and applied to group's hole machined when, precision stability is poor.

In conclusion according to current processing method, the critical issue of the microreplicated forming hole of SG abrasive grains is processed in profile Form accuracy, and realize precision stability when batch production, SG abrasive grains only can be just further increased on this basis to be cut It considers the sharpness of sword to be worth doing, realizes the consistency of SG grit sizes.

Utility model content

First purpose of the utility model is that design is a kind of suitable for the convex, recessed of the microreplicated forming punch die of SG grinding wheel abrasive materials Mould Layout Design has adjusted according to the size of workpiece and the related size of edge-lapped value and the manufacture of related die The distribution situation of punch member determines the number of punch member according to the size of the size of blanking pressure and edge-lapped value.

Second purpose of the utility model is to provide a kind of mold including above-mentioned punch-pin and cavity plate.

The third purpose of the utility model be to provide it is a kind of be processed suitable for the microreplicated mold of SG grinding wheel abrasive materials it is whole System of processing is covered, the automatic feeding system designed according to the characteristic of stepper motor coordinates the stock layout side mentioned in the utility model Formula, cooperate the system of processing that can be realized and can continue processing punching.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：

The utility model provide it is a kind of inlaying mould for the convex of the microreplicated shaped hole of SG grinding wheel abrasive materials, including one is inlayed Positioning plate is equipped with multiple punch members, point of the punch member in inlay location board bottom portion in the bottom of the inlay location plate Mode for cloth is：

It is assumed that the bottom surface of inlay location plate is uniformly divided into several square shaped cells, along the vertical of inlay location plate A plurality of jaggies is set gradually to direction；Starting point, terminal and the vertex of every jaggies are overlapped with the vertex of square shaped cells, And the starting point of a plurality of jaggies is located in same vertical line, the terminal of a plurality of jaggies is located in same vertical line； Punch member is arranged in crossover location on the jaggies Yu rectangular element vertex.

Further, the angle of the jaggies can be 60 degree, 45 degree, 50 degree etc., design as needed；

Further, the distance between longitudinally adjacent jaggies vertex with single jaggies peak between minimum point Distance can be adjusted as needed.

Punch member lateral distance in the utility model is constant, is uniformly arranged to both sides in longitudinal direction so that the row of punch-pin Cloth disperses as far as possible, is not only convenient for being simple to manufacture conveniently for punch process, Reducing distortion, and concave-convex mold, reduces processing cost.

The inserted punch-pin is made of inlay location plate, free-standing punch-pin.Such damascene positioning plate is mainly used for protecting Positioning accuracy and stock layout requirement are demonstrate,proved, relative wear amount is smaller, therefore it is common less than punch-pin that intensity, hardness may be used Material is processed.Free-standing punch-pin is mainly used for punch process, requires intensity, hardness, precision etc. relatively high, may be used higher The material use electrical discharge machining of intensity, and positioned using taper, ensure its stability.

The pattern type is to realize under conditions of reasonable punching press gap so that the stock utilization of micro hole arrangement Highest, and ensure machining accuracy to a certain extent, while there is higher processing efficiency.

The utility model additionally provides a kind of cavity plate suitable for the microreplicated forming punch die of SG grinding wheel abrasive materials, including one Concave template is equipped on the concave template and is located at opposite hole with the punch member.

The utility model additionally provide one kind can continuous diel, including described convex inlay mould and cavity plate.

Further, it is described can continuous stamping die further include top mold frame, guide post, cope plate, die shank, stripper and Lower template；The top mold frame, cope plate, lower template are mutually parallel in the horizontal direction, and are connected by guide post between three； The die shank across top mold frame is equipped at the top of the cope plate；It is equipped with punch-pin in the bottom of the cope plate；Described is recessed Mould is arranged in lower template opposite with the punch-pin；In the both sides of the cavity plate stripper is fixed with bolt.

Further, the bottom of the inlay location plate is equipped with striker plate, and striker plate is equipped with and punch member Opposite hole；Punch member passes through the striker plate；The outer ring of striker plate is equipped with the reset rubber for resetting up and down；

The utility model additionally provides a kind of full-automatic material-feeding system of processing, including it is described can continuous stamping die and from Dynamic interval feeding structure, the automatic intermittent feeding structure be it is described can continuous stamping die feeding comprising stepping electricity Machine, the stepper motor are rotated by four roll shafts of actuator drives, two of which roll shaft front end setting up and down, in addition Two roll shafts are setting up and down in rear end；Flitch passes through the top of arrival cavity plate after four roll shafts.

Further, the flitch advances the length of side of the primary distance equal to single square shaped cells in punch-pin distribution.

The system is controlled by PC and is operated, and full-automatic processing, forcing press punching course and interval feeding structure may be implemented Coordinated by travel switch and is operated.In punching course, stepper motor plays temporary positioning action, after punching press, stepper motor Certain angle is rotated, feeding stroke is controlled.

The beneficial effects of the utility model are as follows：

The utility model is directed to the plate-laying mode of the microreplicated forming hole of SG abrasive grains, it is proposed that a kind of new punch-pin stock layout side Formula.The inserted punch-pin is made of inlay location plate, free-standing punch-pin and backing plate.Such damascene positioning plate is mainly used for protecting Positioning accuracy and stock layout requirement are demonstrate,proved, relative wear amount is smaller, therefore it is common less than punch-pin that intensity, hardness may be used Material is processed.Free-standing punch-pin is mainly used for punch process, requires intensity, hardness, precision etc. relatively high, may be used higher The material use electrical discharge machining of intensity, and positioned using taper, ensure its stability.

In the course of work, among plate is first fixed on stop gauge, and the braking action of stepper motor is utilized to carry out letter Single positioning, forcing press drives punch-pin to push, and before being combined with cavity plate, striker plate is first contacted with plate, and elastic rubber is compressed, So that plate is pressed on cavity plate, the purpose of binder is realized, subsequent punch-pin, which combines, completes first time punching press.Subsequent concave-convex mold point From, punch-pin elder generation separation material, and striker plate under the action of elastic rubber with detached after material, the waste material in cavity plate is with material guide hole It falls into lower section and is collected, realize the effect of backgauge, one time blanking process terminates.Then plate under the action of feeding structure again After secondary feeding 48mm, above-mentioned blanking process is repeated, since the distance that is sent into every time is 6 times of back gauge between aperture, it is therefore desirable to five Secondary feeding could complete the processing of monoblock plank.

Description of the drawings

In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example should all belong to the range of the utility model protection.

Fig. 1 is to inlay die stamping system of processing axonometric drawing；

Fig. 2 is the half-sectional front view of microreplicated molding die；

Fig. 3 is the microreplicated forming hole of SG abrasive grains；

Fig. 4 is typesetting schematic diagram；

Fig. 5 a, 5b, 5c, 5d, 5e are flow process chart；

Fig. 6 is inserted punch member body；

Fig. 7 is inserted punch-pin；

Fig. 8 is inserted punch-pin vertical view；

Fig. 9 is cavity die structure vertical view；

Figure 10 is cavity die structure front view；

Figure 11 is automatic feeding system axonometric drawing；

Figure 12 is automatic feeding system vertical view；

The stroke curve figure of blanking pressure and punch-pin when Figure 13 is punched；

The blade clearances Figure 14 schematic diagram；

The instantaneous state figure cracked in Figure 15 blanking process；

The relational graph of punch and matrix Blade dimensions, tolerance and blanking part size and its tolerance when Figure 16 blankings and punching；

Figure 17 cutting edge of die schematic diagrames；

Wherein, the symbolic indication of attached drawing is：1- cavity plates, 2- lower templates, 3- striker plates, 4- cope plates, 5- die shanks, 6- upper molds Frame, 7-304 coiled strips, 8- roll shafts, 9- stepper motors, 10- big belt wheels, 11- strippers, 12- fixing bolts, 13- guide shafts, 14- edges Embedding positioning plate, 15- elastic rubbers, 16- guide posts, 17- backing plates, 18- positioning plates, 19- bottom plates, 20- etc. compare gear set.

Specific implementation mode

The feature that of large quantities, stock utilization requires high, blanking part form accuracy more demanding is produced according to blanking part, It consults《Diel application manual》Understand edge-lapped value >=2.8mm of processing stainless steel 304.It is wanted if stock layout edge-lapped value is ungratified It asks, is then easy to cause material deformation and failure, and should be taken into account that punch-pin fabricates problem in design.

Since the size of punch-pin is smaller, so stripper has the function of protecting punch-pin and guiding simultaneously.For convenience more It changes, by punch design at block insert type structure, material selection cold work die steel (C_r12MoV), it is fixed using by screw, positioning pin is fixed Position.Strip width is 300mm, and thickness 0.5mm, material is 304 stainless steels, it is desirable that the chamfering that punching production goes out is as far as possible It is small, therefore blanking part precision takes IT8 grades, mold manufacturing precision takes IT6~IT7 grades.According to《Diel application manual》It is found that The scrap (bridge) a of processing stainless steel 304₁>=2.8mm, pressure boundary values are 6mm,.Since material thickness is 0.5mm, therefore blanking part is cut The surface roughness R of section_aTake 3.2 μm.The critical shape of punching is the equilateral triangle that the length of side is 3mm, and processing difficulties are Keep the fillet of workpiece after processing small as far as possible.Each punching number is 185, is computed the consumption of one pieceStock utilization isSelect 63 tons of crank presses.

Gap width Z：

In formula：Z-double-faced clearance value, mm；

T-sheet thickness, mm；

h₀- when cracking punch-pin indentation material depth, mm；

- when cracking punch-pin indentation material relative depth, mm；

The angle of β-shear fracture line and vertical line, °.

From formula (1-1) as can be seen that rational gap width Z and material thickness t, opposite compression distanceCut direction of check (angle) β is related.Andβ is again related with the property of material, therefore the principal element for influencing gap width is the property and material of material Expect thickness, because stainless steel 304 belongs to mild steel, and t=0.5mm is less than 1mm, so

The size of punch-pin determines the size in aperture when punching, piercing die using punch-pin as design basis.First determine punch-pin Blade dimensions determine the Blade dimensions of cavity plate further according to gap width.Since punch and matrix will appear abrasion now in use As the cutting edge abrasion of punch-pin can make punching aperture size become smaller, and the abrasion of cutting edge of die can be such that the size of blank increases.Therefore it sets When counting this mold, the basic size of punch-pin Blade dimensions should take the size as larger as possible within the margin of tolerance.Thus It can guarantee that punch and matrix remained able to be punched out qualified workpiece within a period of time that is worn.

This mold design is since the limitation of processing technology is so the method that selection punch-pin is individually processed with cavity plate.It is processing When mold, the Blade dimensions and tolerance of punch-pin and cavity plate are first marked on pattern, then punch-pin and cavity plate are added according to drawing respectively Work, in order to ensure reasonable gap value, it is necessary to meet following relationship：

T_p+T_d≤Z_max-Z_min (1-2)

Or take T_p=0.4 (Z_max-Z_min) (1-3)

T_d=0.6 (Z_max-Z_min) (1-4)

Piercing die punch-pin cutting edge basic size

Piercing die cutting edge of die basic size

For the punch force calculation of flat sword blanking die：

F=kLt τ_b (1-5)

F-blanking pressure, N in formula；

K-coefficient, generally rule of thumb takes 1.3；

The perimeter in L-blanking part punching hole, mm；

T-sheet thickness, mm；

τ_b- material shearing strength, MPa.Strength degree of drawing materials σ_b80%, i.e. τ_b=0.8 σ_b。

The Zhou Changwei 9mm of single hole, the tensile strength sigma of stainless steel 304_bFor 520MPa, therefore τ_b=0.8 σ_b=416MPa.Therefore Rushing the blanking pressure needed for single hole is

F=1.3 × 9 × 0.5 × 416=2433.6N

It it is 176 according to the sum of stock layout one-off hole-piercing, so total blanking pressure is

F_Always=2433.6 × 176=428313.6N

When designing blanking die and selection stamping equipment, the power for checking forcing press is needed.When the blanking pressure of calculating is big When the nominal pressure of forcing press, some measures, which can be used, reduces blanking pressure, but being punched work(can't but reduce, therefore may go out Existing forcing press meets the requirement of blanking pressure but the phenomenon that being overloaded in terms of being punched work(, when forcing press overloads in terms of power When, hysteresis phenomenon is will produce, causes the rotating speed of flywheel that can drastically reduce, forcing press is made to overload and be damaged.

So the punching work(of single hole is

Always punching work(is

W_Always=0.8518 × 176=149.9J

It can thus be seen that punching work(very little, therefore can be without checking computations.

When designing blanking die, it is also necessary to which other power of calculating have stripping force, ejecting force and kicking force.Plate is through overshoot After sanction, due to the flexible deformation of material and the effect of bending springback, the component separated from plate is easy to be blocked in recessed Within the type mouth of mould, remaining part can be tightly attached on punch-pin, so in order to ensure being smoothed out for following process, need to apply Material is pushed or is ejected by certain power.

(1) stripping force F₁Workpiece or waste material are taken off into required power from punch-pin.

F₁=K₁F (1-7)

(2) ejecting force F₂The power for releasing workpiece or waste material along the direction of blanking pressure out of cavity plate.

F₂=nK₂F (1-8)

(3) kicking force F₃The power for ejecting workpiece or waste material against punching force direction out of cavity plate.

F₃=K₃F (1-9)

Wherein K₁、K₂、K₃Respectively stripping force, ejecting force, head part force coefficient, the utility model are determined using elastic discharging The mode of device and bottom discharge, so total blanking pressure F_ZFor：

F_Z=F+F₁+F₂ (1-10)

Therefore F_Z=428313.6+21415.68+26983.76=476713N

Since this punching is using the mass production of self-feeding, in addition the appearance and size of raw material is larger, institute To determine to use open type crank press.Since the blanking pressure of forcing press will remain with sufficient leeway, in addition the speed of punching Comparatively fast, thus in blanking process the summation of various power no more than the 70%~80% of forcing press nominal pressure within.According to this The punch force calculation of secondary calculating is as a result, 63 tons of open type crank presses of forcing press model that this diel selects.

The characteristics of according to this punching press, determines to use split type punch-pin, an entirety is combined by four pieces of identical punch-pin.Mould Lamps structure and its composition determine the length of punch-pin, length between the processing reconditioning quality of punch-pin, fixed plate and stripper etc. because Element can also influence the length of punch-pin.Punch-pin length not enough can not then be inserted into cutting edge of die and is punched to material；It is long can make it is convex Mould job insecurity is easy to happen damage.

Either simplex sequence punch-pin length determines formula：

L=H_Gu+H_{It unloads}+H_{It leads}+Y (1-11)

In formula：L-punch-pin length, mm；

H_Gu- punch retainer thickness, mm；

H_{It unloads}- positive stripper thickness, mm；

H_{It leads}- side guide plate thickness, mm；

Y-increment, mm (including process reconditioning quality accordingly, punch-pin is pressed into the distance of cavity plate, punch retainer with discharging Length etc. between plate).

It is computed punch-pin length and takes 25mm.

When punch process, punch-pin bears compression, and when discharging bears pulling force, and during continuous punching, punch-pin is easy Fatigue rupture, it is small for cutting edge diameter, length length punch-pin, excessive pressure can allow punch-pin longitudinally generate flexural deformation, and because Between asymmetric punching press gap and punch-pin and stamping material the reason of angular deviation, punch-pin can be allowed because by lateral pressure Effect and be bent, also result in punch-pin and fracture.Therefore cutting edge diameter is smaller, the longer punch-pin of length will to strength and stability into Row school lotus, the specific content that verifies includes compression and bending stress.

(1) compression verifies

The permissible compression stress of punch-pin cannot be more than to the maximum crushing stress of punch-pin, i.e.,：

In formula：P-maximum blanking pressure, N；

F-punch-pin cutting edge sectional area, mm²；

[σ_Pressure]-punch-pin carries out the permissible compression stress after quenching treatment, MPa.Knot depending on material, heat treatment and mold Structure, by《Diel application manual》Check in [σ_Pressure]=2000~2200MPa.

By knowing that maximum blanking pressure P is 2433.6N above, punch-pin cutting edge sectional area F is 3.9mm²。

SoTherefore safety.

(2) verification of bending stress

The punch-pin of the utility model has corresponding guider and spring loaded shedder, and at this moment the stress of punch-pin can be considered as Side stress, the strut device of other side twisted branch connection, at this time punch-pin keep shape will not unstability and the maximum length that is bent For L_max, calculated by Euler's formula

Non-circular punch-pin should meet：

In formula：L_max- punch-pin maximum the drift allowed, mm；

The minimum diameter of D-punch-pin, mm；

P-blanking pressure, N；

The moment of inertia of J-punch-pin minimum cross section, mm⁴；It takes(a takes 3mm).

It is computedMuch larger than the drift L of this punch-pin_max, so safety.

This punching belongs to high-volume punching process, and higher to the required precision of blanking part, so the design of cavity plate It must satisfy easily manufactured requirement with high accuracy.The cutting edge of die of the utility model does not have gradient, there is fixed height h, cutting edge Size will not change after abrasion, but due to expanding at the material leakage of cutting edge lower part, therefore cavity plate working portion intensity is poor, is easy accumulation Clout, however this kind of punch-pin is suitable for the mold that waste material falls along pressing direction, the dimensional accuracy of blanking part is high, easy to make, So it is general to be of wide application.

Cutting edge straight wall height h is related with by slug thickness t, generally takes h≤4mm as t≤1mm, when t ＞ 1mm, takes h=4 ~8mm.This stamping material thickness t=0.5mm, it is possible to take t=4mm.According to bibliography《Diel application manual》It looks into It obtains die thickness and takes 30mm.Since this mold belongs to small-sized cavity plate, wall thickness c=(1.5~2) H (mm), therefore c can take 25mm.

Cavity plate bending resistance calculates：

It is computed σ_{It is curved}=470MPa≤[σ_{It is curved}], so being safe.

The stroke curve of blanking pressure and punch-pin when Figure 12 is punching.AB sections are the elastic deformation stage being punched, punch-pin in figure Start after meeting with material, load rises rapidly；The cutting edge of punch-pin enters in plate, and after material starts plastic deformation, load is slow Slow to increase, such as the BC stages in figure, since punch-pin enters material, the material area for bearing blanking pressure reduces, but material is processed The effect of hardening phenomenon has been more than the effect that area becomes smaller, and blanking pressure continues to increase, when the effect of the two equal moment, punching Power reaches maximum value, i.e., C points in figure.Later, the effect of the diminution of the shear(ing) area of material has been more than that processing hardening occurs for material Effect, blanking pressure starts to reduce.Punch-pin Continued downward motion, the crackle Rapid Expansion of material internal, blanking pressure are quickly reduced, As shown in the CD sections in figure, this section is the fracture stage of punching.

Blade clearance refers to the gap between mold convex mould and cutting edge of die.Punch-pin and two side clearance of cavity plate and referred to as It for double-faced clearance, is indicated with Z, as shown in figure 13.Blade clearance is to the cross section quality of blanking, the service life of punch and matrix, Blanking pressure etc. has a very big impact.The utility model determines that gap method, Main Basiss are to ensure crackle weight up and down using theoretical It closes, and intersects at straight line, to obtain preferable cross section quality, cracked in the shown as blanking process of Figure 14 instantaneous State.

Punch and matrix Blade dimensions when blanking and punching, relationship such as Figure 16 institutes of tolerance and blanking part size and its tolerance Show.

In figure：D_dThe basic size of-cavity die of blanking die cutting edge, mm；

D_PThe basic size of-blanking punch cutting edge, mm；

d_dThe basic size of-piercing die cutting edge of die, mm；

d_pThe basic size of-piercing die punch-pin cutting edge, mm；

D_maxThe maximum limit of size of-blank, mm；

d_minThe minimum limit of size in-punching aperture, mm；

Δ-blanking part tolerance；

Z_minThe two-sided reasonable clearance of-minimum, mm；

Z_maxThe two-sided reasonable clearance of-maximum, mm (are not marked) in figure；

T_d- cutting edge of die manufacturing tolerance；

T_p- punch-pin cutting edge manufacturing tolerance；

K-coefficient；

In order to avoid blanking part size is all biased to dimension limit, blanking part actual size should be made close to the centre of tolerance range Size.K Distribution values between 0.5~1.0, and it is related with the accuracy class of blanking part through consult《Diel practicality hand Volume》, K takes 0.5, minimum two-sided reasonable clearance Z_min0.035mm, blanking part tolerance Δ is taken to take 0.008mm, the manufacture of punch-pin cutting edge public Poor T_pTake 0.016~0.02mm, cutting edge of die manufacturing tolerance T_dTake 0.02mm.

As shown in figure 4, the micro hole processed will finally be needed to be indicated with coordinate (X, Y), then the stock layout of punch-die is by following Method is amplified twice respectively：To amplify for the first time, i.e., its X value is constant, and Y value changes according to Y=(n-1) b modes, i.e., and first Secondary amplified concave-convex mold arrangement is (X, (n-1) b), and wherein n is the place line number of concave-convex mold, and b is true according to stepper motor institute A fixed feeding stroke, and b should be the integral multiple of spacing between aperture；Amplify for the second time, i.e. X values on Y=(n-1) b straight lines It is constant, Y value successively with 0, a, 2a, 3a ... (p-1) a, pa, (p-1) a ... 3a, 2a, a, 0, a, 2a, 3a ... (p-1) a, pa, (p- 1) a ... 3a, 2a, a ... (p round numbers and) summation, until the aperture on Y=(n-1) b straight lines is all drained.The wherein value of a It can be determined according to the processing technology of concave-convex mold.

In such method, a, b, p value decide the arrangement spacing of concave-convex mold and the primary focus of this secondary design.Its In, as a=1, then the minimum spacing of concave-convex mold is a, and as a >=2, then the minimum spacing of concave-convex mold arrangement is 2a；；Such as scheming In design scheme shown in 4, it is desirable that the small pitch of holes of processing is that 8mm takes n=5, b=40mm, p then according to the setting principle of mold =4, a=2；Then the minimum spacing of its concave-convex mold is increased to 16mm, and in theory, and working efficiency is single punching press 185 times.

Its monoblock plank punching course is specifically divided into the completion of five step of a, b, c, d, e：It is struck out as shown in Figure 5 a for first time Type.Subsequent punch-die separation, travel switch control stepper motor and start, band action roller shaft feeding forward, and ensure each feeding row Journey is b, and b=40mm is selected herein according to design.Motor stops operating after the completion of feeding, and punch-die completes second of punching press, As shown in Figure 5 b, it is recycled five times with this, you can complete the press work of monoblock plate.

For case above, it is proposed that a kind of pattern type.And according to stock layout, it is proposed that a kind of inserted punch structure. The inserted punch-pin is made of inlay location plate, free-standing punch-pin and backing plate.Such damascene positioning plate mainly serves for ensuring Positioning accuracy and stock layout requirement, relative wear amount is smaller, thus may be used intensity, hardness be less than punch-pin common material Material processing.Free-standing punch-pin is mainly used for punch process, requires intensity, hardness, precision etc. relatively high, may be used more high-strength The material use electrical discharge machining of degree, and positioned using taper, ensure its stability.

Set of molds prejudice Fig. 1 of the utility model, shown in 2：One kind can continuous stamping die, including punch-pin and cavity plate 1, on Mould bases 6, guide post 16, cope plate 4, die shank 5, stripper 11 and lower template 2；The top mold frame 6, cope plate 4, lower template 2 exist It is mutually parallel in horizontal direction, and is connected by guide post 16 between three；It is equipped with across upper mold at 4 top of cope plate The die shank 5 of frame 6；It is equipped with punch-pin in the bottom of the cope plate 4；The cavity plate is arranged in lower template and the punch-pin Relatively；In the both sides of the cavity plate stripper is fixed with bolt；

The bottom of the inlay location plate is equipped with striker plate 3, and striker plate 3 is equipped with opposite with punch member Hole；Punch member passes through the striker plate 3.The outer ring of striker plate is equipped with the reset rubber 15 for resetting up and down.

Further, punch-pin, including an inlay location plate 14 are equipped with multiple in the bottom of the inlay location plate 14 Punch member, distribution mode of the punch member in inlay location board bottom portion is as shown in Figure 4：

It is assumed that the bottom surface of inlay location plate is uniformly divided into several square shaped cells, along the vertical of inlay location plate The jaggies that a plurality of angle is 60 degree is set gradually to direction, the distance between longitudinally adjacent jaggies vertex is sawed equal to single Tooth trace peak to distance between minimum point 5/6；Starting point, terminal and the vertex of every jaggies and the top of square shaped cells Point overlaps, and the starting point of a plurality of jaggies is located in same vertical line, and it is vertical that the terminal of a plurality of jaggies is located at same On straight line；Punch member is arranged in crossover location on the jaggies Yu rectangular element vertex.

Hole corresponding with the punch member is equipped on the concave template.

A kind of full-automatic material-feeding system of processing provided by the utility model, including it is described can continuous stamping die and automatic Interval feeding structure, the automatic intermittent feeding structure be it is described can continuous stamping die feeding comprising stepper motor 9, the stepper motor 9 drives four roll shafts 8 to rotate by equal than gear set 20, big belt wheel 10, about 8 two of which roll shaft The front end of setting, other two roll shaft 8 are setting up and down in rear end；Flitch passes through the top of arrival cavity plate after four roll shafts.

In the course of work, among plate is first fixed on stop gauge, and the braking action of stepper motor is utilized to carry out letter Single positioning, forcing press drives punch-pin to push, and before being combined with cavity plate, striker plate is first contacted with plate, and elastic rubber is compressed, So that plate is pressed on cavity plate, the purpose of binder is realized, subsequent punch-pin, which combines, completes first time punching press, as shown in Figure 5 a.With Concave-convex mold detaches afterwards, punch-pin elder generation separation material, and striker plate under the action of elastic rubber with detached after material, it is useless in cavity plate Material falls into lower section with material guide hole and is collected, and realizes the effect of backgauge, one time blanking process terminates.Then plate is in feeding structure Under the action of feed 48mm again after, repeat above-mentioned blanking process, since the distance that is sent into every time is 6 times of back gauge between aperture, Therefore it needs to feed the processing that could complete monoblock plank five times.

It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly The limitation of type protection domain, those skilled in the art should understand that, based on the technical solution of the present invention, ability Field technique personnel need not make the creative labor the various modifications or changes that can be made still in the protection model of the utility model Within enclosing.

Claims (10)

1. a kind of inlaying mould for the convex of the microreplicated shaped hole of SG abrasive materials, which is characterized in that including an inlay location plate, in institute The bottom for the inlay location plate stated is equipped with multiple punch members, and distribution mode of the punch member in inlay location board bottom portion is：

It is assumed that the bottom surface of inlay location plate is uniformly divided into several square shaped cells, along the longitudinal direction side of inlay location plate To setting gradually a plurality of jaggies；Starting point, terminal and the vertex of every jaggies are overlapped with the vertex of square shaped cells, and more The starting point of jaggies is located in same vertical line, and the terminal of a plurality of jaggies is located in same vertical line；Institute State crossover location setting punch member of the jaggies with rectangular element vertex.

2. a kind of as described in claim 1 inlay mould for the convex of the microreplicated shaped hole of SG abrasive materials, which is characterized in that described Punch member is equipped with cutting edge.

3. a kind of cavity plate for the microreplicated forming punch die of SG abrasive materials, which is characterized in that including a concave template, described Concave template is equipped with hole corresponding with punch member described in claim 1.

4. a kind of cavity plate for the microreplicated forming punch die of SG abrasive materials as claimed in claim 3, which is characterized in that described Hole is internally provided with cutting edge.

5. one kind can continuous stamping die, which is characterized in that convex inlay mould and claim 3 institute including described in claim 1 The cavity plate stated.

6. one kind as claimed in claim 5 can continuous stamping die, which is characterized in that further include top mold frame, guide post, upper mold Plate, die shank, stripper and lower template；The top mold frame, cope plate, lower template are mutually parallel in the horizontal direction, and three Between by guide post be connected；The die shank across top mold frame is equipped at the top of the cope plate；In the bottom of the cope plate Equipped with punch-pin；The cavity plate is arranged in lower template opposite with the punch-pin；It is solid with bolt in the both sides of the cavity plate Surely there is stripper.

7. one kind as claimed in claim 5 can continuous stamping die, which is characterized in that pacify the bottom of the inlay location plate Equipped with striker plate, and striker plate is equipped with the hole opposite with punch member；Punch member passes through the striker plate.

8. one kind as claimed in claim 7 can continuous stamping die, which is characterized in that the outer ring of striker plate be equipped with for The reset rubber of lower reset.

9. a kind of full-automatic material-feeding system of processing, which is characterized in that described in automatic intermittent feeding structure and claim 5 Can continuous stamping die, the automatic intermittent feeding structure be it is described can continuous stamping die feeding comprising stepping electricity Machine, the stepper motor are rotated by four roll shafts of actuator drives, two of which roll shaft front end setting up and down, in addition Two roll shafts are setting up and down in rear end；Flitch passes through the top of arrival cavity plate after four roll shafts.

10. a kind of full-automatic material-feeding system of processing as claimed in claim 9, which is characterized in that the flitch advances primary Distance be equal to single square shaped cells the length of side.