CN106424371B - A kind of Bending Mould for being exclusively used in safe door deckle board - Google Patents
A kind of Bending Mould for being exclusively used in safe door deckle board Download PDFInfo
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- CN106424371B CN106424371B CN201611080291.5A CN201611080291A CN106424371B CN 106424371 B CN106424371 B CN 106424371B CN 201611080291 A CN201611080291 A CN 201611080291A CN 106424371 B CN106424371 B CN 106424371B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of special Bending Mould of safe door deckle board, belong to mold design field.The mould includes the upper die component with mold and the lower mold assemblies with lower mould, the punching press groove face cooperation of the stamping surface of mold and lower mould.The mould energy time processing is high into safe door deckle board workpiece to be processed, precision, it is not necessary to which secondary artificial treatment, does not damage workpiece surface, easy to operate, cost is low.The application method of the mould quickly and efficiently processes safe door deckle board, and bending is efficient, quality of finished product good.The processing method of the mould, for mold or lower mould, first forge, then the shape of all parts is reprocessed into, then is refined, is finally assembled, wherein employ special heat treatment process, so that its hardness, toughness and wear-resisting sexual satisfaction technological requirement, processing uses more than more than ten thousand times still normal, service life height.
Description
Technical field
The invention belongs to mold design field, specifically, is related to a kind of Bending Mould of safe door deckle board, more specifically
Ground is said, is related to a kind of special Bending Mould of safe door deckle board and its use and processing method.
Background technology
Bending machine die is the instrument that bender is used for machine-shaping plate, and this instrument is made of various parts, different
The part that forms of mould it is different.It mainly realizes the processing of article shape by the change of institute's moulding material physical state.
Becoming blank by the guiding each other of upper die of bending machine and lower die under the action of bender pressure has given shape and size
Workpiece.In the actual production process, enterprise can configure different FLUTE ANGLEs according to shaping workpiece shape or the difference of size
Lower die.But with expanding economy, the shape of the workpiece of bending to develop towards variation with complicating, often at one piece
Need to carry out multiple bending on plate and can be only achieved required shape, such as in safety cabinet industry, needed when processing doorframe shown in Fig. 1
The bending plate of shape, the sheet forming both ends are symmetrical, formed respectively by identical bending three times at the both ends of flat sheet,
Bending section from plate end ecto-entad is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 3rd bending section C
Angle with plate face is 93 °, and the angle of the second bending section B and the 3rd bending section C are 270 °, and the first bending section A and second
Angle between bending section B is 90 °.Traditional bending part of being processed by way of multiple bending is bothersome laborious, multiple bending
Accumulated tolerance is big, and bending precision substantially reduces, and therefore, is required for correcting after each bending, takes time and effort, processing efficiency is low.
In actual production, many people are attempted by way of a punching press multiple tracks bending, such as China Patent No.：
201120046795.1, publication date on December 07th, 2011, discloses a kind of a entitled more than 5mm slabs Z fonts
The patent document of Bending Mould, the mould include upper die and lower die, it is characterised in that and the stamping surface of the upper mold is Z fonts,
The stamping surface of the lower die matches with upper mold.The program solves the problems, such as to be unable to bending and handle when bending is highly smaller
Punching press twice originally, which is changed to a punching press, can then complete twice bending, so substantially increase production efficiency, ensure that production
The quality of product, to achieve the purpose that to reduce manufacture cost.But the program can not be shown in manuscript 1 shape, though in addition, it
Twice bending can be so processed at the same time, but workpiece is positioned in lower die and is not easy, bending position is not allowed, it is often more important that, due to bullet
Property restoring force presence, bending angle is inconsistent with required product, it is necessary to correct after bending, this design for upper and lower mould proposes
Very high requirement.
And for example, China Patent No.：201110166763.X, publication date on November 21st, 2011, discloses a title
For adjustable Z shapes offset bending die, belong to metal plate Bending Mould, it is characterized in that the offset bending die is mainly by upper mold with
Mould forms, and upper mold is mainly made of upper mold seat, upper fixed mould, upper adjustable pressing mold, upper compound gasket and upper fixing bolt again, under
Mould again mainly by die holder, lower fixed mould, under adjustable pressing mold and lower fixing bolt form, open up and roll in the lower part of upper mold seat
The pressure line of bender in δ angles right angle on oblique straight slot, on this in oblique straight slot correspondence install fixed mould, on pressure-adjustable
Mould and upper compound gasket, open up with vertical center line also into the oblique straight slot in right angle of δ angles on the top of die holder, under this
The lower fixed mould of corresponding installation in oblique straight slot, under adjustable pressing mold and lower compound gasket, and this upper and lower fixed mould and it is upper and lower can
The bottom surface of pressure regulation mould or top surface are the inclined-planes in θ angles corresponding with the bottom surface of upper and lower die holder or top surface, upper and lower mould molding, Z
Shape workpiece shaping, cost is low, and quality is good.The mode of the patent implementation is also by providing one and workpiece shape to be processed
Shape corresponding mould is completed, but the shape that the mould also can not be shown in manuscript 1.It is most important the reason is that mould without
Method be processed into the corresponding mould of Fig. 1 shapes, so to change original mold design theory, propose the new mode of thinking,
Emphasis be wanted as requirement of the people to product is higher and higher processed product precision also require it is higher and higher.
The content of the invention
, to solve the problems, such as
Production safety cabinet doorframe in need above-mentioned bending part, it be the both ends of flat sheet respectively by it is identical three times
Bending forms, and the bending section inside from plate end is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 3rd folding
Curved segment C and the angle of plate face are 93 °, and the angle of the second bending section B and the 3rd bending section C are 270 °, and the first bending section A and
Angle between second bending section B is 90 °.Processing the workpiece in the prior art, there are processing difficulties, inefficient, machining accuracy are low
The problem of, the present invention provides a kind of special Bending Mould of safe door deckle board, and a bending can complete the processing of above-mentioned workpiece,
It is efficient, high precision machining, to workpiece not damaged.In addition, present invention also offers the application method of the mould, pass through this method
Above-mentioned safe door deckle board can efficiently be produced.Further, since the mould in order to complete processing safe door deckle board function,
Ensure that service life is lasting, it is also necessary to which special processing technology is carried out to upper/lower die, it is ensured that upper/lower die has higher hard
Degree, the present invention also provides the processing method of the upper/lower die.
, technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of special Bending Mould of safe door deckle board, including upper die component and lower mold assemblies；The upper die component bag
Mold is included, lower mold assemblies include lower mould, it is characterised in that：
The lower face of the mold is stamping surface, by the first inclined-plane, the second inclined-plane, the 3rd oblique from side to opposite side
Face and the 4th inclined-plane are sequentially connected composition, and the angle between the first inclined-plane and mold side is 240 °, the first inclined-plane and second
Angle between inclined-plane is 266 °, and the angle between the second inclined-plane and the 3rd inclined-plane is 91 °, and the 4th inclined-plane is put down with the second inclined-plane
OK, the intersection position on the first inclined-plane and the second inclined-plane is higher than the 3rd inclined-plane and the intersection position on the 4th inclined-plane；
The upper surface of the lower mould is provided with the punching press groove face to match with the stamping surface of mold, the punching press groove face
It is sequentially connected and is formed by the first groove face, the second groove face, the 3rd groove face and the 4th groove face from side to opposite side, the first groove face is with
Angle between mould upper surface is 150 °, and the angle between the first groove face and the second groove face is 94 °, the second groove face and the 3rd groove
Angle between face is 269 °, and the 4th groove face is parallel with the second groove face.
Further, the upper die component further includes upper mold seat and upper mold fixed block, and it is spacing that upper mold seat is provided with upper mold
Block；The mold has two, is symmetricly set on the upper mold seat of upper mold limited block both sides；The upper mold fixed block is set
Put on the upper mold seat on the outside of mold, and compress the lateral surface of mold；
The lower mold assemblies further include die holder and lower die fixed block, and die holder is provided with lower die limited block；Described
Lower mould has two, is symmetricly set on the die holder of lower die limited block both sides；The lower die fixed block is arranged on lower die
On the die holder for having outside, and compress the lateral surface of lower mould.
Further, the centre of the upper mold seat offers upper limit position groove, and upper mold limited block is located in upper limit position groove；It is described
The centre of die holder offer lower limit groove, lower die limited block is located in lower limit groove.
Further, the lower mould is provided with least two along its length on the one side of lower die limited block
Material blocking block, is provided with backgauge screw on material blocking block.
A kind of application method of the special Bending Mould of safe door deckle board, its operating procedure are：
1. upper die component and lower mold assemblies are assembled respectively, and check to ensure that each parts connection is reliable；
2. lower mold assemblies are placed on the workbench of hydraulic press, and bolt is used by under by the T-slot on workbench
Membrane module is fixed；
3. lifting upper die component to lower mold assemblies, upper die component position is adjusted, makes the stamping surface of mold and lower mould
Punching press groove face coordinate it is close；
After 4. hydraulic machine slide block down compresses upper die component, upper die component is fixed on slider of hydraulic press by bolt,
Sliding block drives upper die component to move up and down 1-3 times, it is ensured that mold and lower mould cooperation position are accurate；
5. it is 1.8-2 mm by thickness to be processed, using Cr25Mo3One end of plate prepared by Ti is placed on lower mould
On upper surface, after adjusting bending position, the other end of plate is compressed by material pressing device；
6. mold moves down under the driving force effect of hydraulic press, the 3rd inclined-plane of mold stamping surface and the 4th
Inclined-plane intersection starts to contact plate and extrudes, when mold continues traveling downwardly the intersection and plate to the first inclined-plane and the second inclined-plane
When material contacts, material pressing device unclamps plate, and mold continues traveling downwardly, until completing bending, keeps 15 ~ 20s；
7. hydraulic press drives mold fast fallback, plate is removed；
8. repeating the above steps 5., 6. and 7., bending operation is carried out to the plate other end, safe door deckle board processes
Into.
Further, the step 6. in, it is oblique to first from the 3rd inclined-plane and the 4th inclined-plane intersection and web contact
The intersection on face and the second inclined-plane with the web contact period, mold at the uniform velocity work is into speed V1=10 mm/s, from first
The time that the intersection on inclined-plane and the second inclined-plane goes downwards to extreme position with web contact to mold is denoted as t1, in time period
The work speed of mold is V2, meetMm/s, t value range are [0, t1]。
Although the Bending Processing of safe door deckle board can be completed well using above-mentioned particular manufacturing craft and method, exist
One problem, is exactly that access times are more, and the working portion of mold and lower mould causes because stress is larger, is easily damaged
Mould is needed replacing in use for some time, has in practice been verified that the mold using common material and heat treatment process processing,
The corner angle and the 3rd inclined-plane of the first inclined-plane and the second inclined-plane boundary for mold occur are easy for when using about 1600 times
There is phenomena such as bursting apart, wearing in the corner angle having a common boundary with the 4th inclined-plane, equally, the second groove face and the 3rd groove face intersection of lower mould
Corner angle also there is phenomena such as bursting apart, wearing.Although the present invention considers factors above in structure design, and can be certain
Crackle tendency is prevented in degree, but still to rely on rational material composition and heat treatment process, so for the present invention specially
With the design feature of mould, the present invention makes every effort to find a kind of new material and heat treatment process.
A kind of processing method of the special Bending Mould of safe door deckle board, for processing mold or lower mould, its step
For：
（1）The raw material of blank prepare
It is made using rough forging, the component and mass percent of the rough forging are：C 0.38~0.45%, Si 0.25
~0.35%, Mn 0.6~0.71%, S≤0.023%, P≤0.021%, Cr 1.34~1.48%, Mo 0.35~0.48%,
ZrO20.08~0.11%, surplus Fe；
（2）The annealing of rough forging
Will be through step（1）In obtained rough forging anneal by annealing furnace to it, its annealing temperature for 825~
835 DEG C, annealing time is 4~4.5 h, is cooled to 200~300 DEG C in the lehr, and room temperature is air-cooled to after keeping the temperature 0.5~1.2 h；
（3）The preliminary working of rough forging
By step（2）Middle rough forging is processed into the primary shape of mould on lathe, and each face retains the surplus of 1.5mm；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 1.5-2.5 h are kept the temperature after being first to heat to 440-530 DEG C, is then added again
Heat is heated to 890-910 DEG C, is quenched after insulation 30-45 min, oil quenching, after cooling again to 650-700 DEG C of insulation 1.5-2 h
By subzero treatment, the temperature of subzero treatment is -206 to -220 DEG C, keeps 1.2-1.5 h, returns to room temperature in atmosphere,
Once it is tempered, temperature is 140-160 DEG C, places 0.5-1 h after being cooled to room temperature, then carry out double tempering, temperature
For 175-195 DEG C；
（5）The deep processing of mould
Remove step（4）The oxide layer on rear mold surface is handled, and is assembled on grinding machine, carries out grinding, respectively
Face retains the surplus of 0.7-1 mm, after placing at least 1 day, carries out grinding again to required size；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
Further, the step（1）The component and mass percent of middle rough forging be：C 0.4%、Si 0.3%、
Mn 0.65%、S ≤ 0.023%、P ≤ 0.021%、Cr 1.4%、Mo 0.42%、ZrO20.1%, surplus Fe.
Further, the step（2）The annealing temperature of middle rough forging is 830 DEG C, and annealing time is 4.2 h,
It is cooled to 250 DEG C in annealing furnace, is carried out after 0.8 h of insulation air-cooled；The step（4）The heat treatment of middle mould is to be first to heat to
2 h are kept the temperature after 480 DEG C, 670 DEG C of 1.8 h of insulation is then heated to, is heated to 900 DEG C, is quenched after keeping the temperature 40 min, oil
To quench, pass through subzero treatment after cooling again, the temperature of subzero treatment is -213 DEG C, keeps 1.3 h, returns to room temperature in atmosphere,
Once it is tempered, temperature is 150 DEG C, places 0.7 h progress double temperings after being cooled to room temperature, temperature is 184 DEG C.
Further, the step（4）In, oil quenching, the constituent and each component of quenching oil are carried out using quenching oil
Mass fraction is：26-28 parts of base oil, urges cold multiple 0.3-0.7 parts of agent, and black multiple 0.1-0.2 parts of agent, 0.3-0.6 parts of brightener,
3-3.5 parts of surfactant；Wherein, it is dicyclopentadiene and EPDM in mass ratio 3 to urge cold multiple agent:2 mixture, blacks
Multiple agent is acrylate, coloring agent and wetting agent in mass ratio 2:3:1 mixture, brightener are petroleum sulfonate and binary acid
In mass ratio 1:2 mixture, surfactant are polyoxylethylene abietate.
, beneficial effect
Compared with the prior art, beneficial effects of the present invention are：
（1）The special Bending Mould of the present invention passes through the stamping surface of special mold and the punching press groove face of lower mould, energy
Time processing is high into safe door deckle board workpiece to be processed, precision, it is not necessary to which secondary artificial treatment, does not have workpiece surface
Damage, easy to operate, cost is low；What is more important, due to plate existing elastic reaction in itself, using general mould bending
Afterwards, bending angle deviation is larger, it is necessary to be corrected, and according to conventional multiple bending, accumulated tolerance is big, workpiece after processing
Error is big, and the mould of the present invention considers that plate elastic deformation by optimization design folding surface turning point angle, is after bending
Required machining angle, without correction, and one-pass molding, no cumulative errors, precision are high；
（2）The special Bending Mould of the present invention, positioning during for convenience of sheet metal bending, along length on the one side of lower mould
Degree direction is provided with material blocking block, and backgauge screw is provided with material blocking block, by adjusting backgauge screw, can adjust sheet metal bending position
Put；
（3）The application method of the present invention, can quickly and efficiently process safe door deckle board using the special Bending Mould,
Bending is efficient, quality of finished product good.
（4）The processing method of the special Bending Mould of safe door deckle board of the present invention, the mold or lower die processed have
Higher hardness, toughness and wearability, and hardness is evenly distributed, processing uses more than more than ten thousand times still normal, service life height.
Brief description of the drawings
Fig. 1 is the safe door deckle board molded part of required processing；
Fig. 2 is a kind of upper die component structure diagram of the special Bending Mould of safe door deckle board of the present invention；
Fig. 3 is a kind of lower mold assemblies structure diagram of the special Bending Mould of safe door deckle board of the present invention；
Fig. 4 is view when a kind of special Bending Mould of safe door deckle board of the present invention starts bending；
Fig. 5 is view when a kind of special Bending Mould of safe door deckle board of the present invention completes bending.
Label in attached drawing is expressed as：
1st, upper die component；110th, upper mold seat；120th, upper mold limited block；130th, mold；131st, the first inclined-plane；132nd, second
Inclined-plane；133rd, the 3rd inclined-plane；134th, the 4th inclined-plane；140th, upper mold fixed block；
2nd, lower mold assemblies；210th, die holder；220th, lower die limited block；230th, lower mould；231st, the first groove face；232nd, second
Groove face；233rd, the 3rd groove face；234th, the 4th groove face；240th, lower die fixed block；250th, material blocking block；260th, backgauge screw.
Embodiment
The present invention is further described below with reference to specific embodiments and the drawings.
Embodiment 1
As shown in Figure 2 and Figure 3, a kind of special Bending Mould of safe door deckle board of the present embodiment, including 1 He of upper die component
Lower mold assemblies 2；
Wherein, the upper die component 1 includes mold 130, and the lower face of the mold 130 is stamping surface, from
Side is sequentially connected and is formed by the first inclined-plane 131, the second inclined-plane 132, the 3rd inclined-plane 133 and the 4th inclined-plane 134 to opposite side, the
Angle between 130 side of one inclined-plane 131 and mold is 240 °, and the angle between the first inclined-plane 131 and the second inclined-plane 132 is
266 °, the angle between the second inclined-plane 132 and the 3rd inclined-plane 133 is 91 °, and the 4th inclined-plane 134 is parallel with the second inclined-plane 132, the
The intersection position on one inclined-plane 131 and the second inclined-plane 132 is higher than the 3rd inclined-plane 133 and the intersection position on the 4th inclined-plane 134.
The lower mold assemblies 2 include lower mould 230, and the upper surface of lower mould 230 is provided with the punching press with mold 130
The punching press groove face that face matches, the punching press groove face is from side to opposite side by the first groove face 231, the second groove face 232, the 3rd groove face
233 and the 4th groove face 234 be sequentially connected composition, the angle between the first groove face 231 and lower 230 upper surface of mould is 150 °,
Angle between one groove face 231 and the second groove face 232 is 94 °, and the angle between the second groove face 232 and the 3rd groove face 233 is
269 °, the 4th groove face 234 is parallel with the second groove face 232.
As shown in Figure 1, in the safe door deckle board of processing needed for us, the angle of the 3rd bending section C and plate face is 93 °,
The angle of second bending section B and the 3rd bending section C is that the angle between 270 °, and the first bending section A and the second bending section B is equal
For 90 °, and in the mold 130 of the present embodiment, the angle between the first inclined-plane 131 and the second inclined-plane 132 is 266 °, and second is oblique
Angle between 132 and the 3rd inclined-plane 133 of face is 91 °, and in lower mould 230, the first groove face 231 and the second groove face 232 it
Between angle be 94 °, the angle between the second groove face 232 and the 3rd groove face 233 is 269 °, it is clear that poor with above-mentioned angle
It is different.Need to illustrate herein, due to plate existing elastic reaction in itself, after general mould bending, bending angle is inclined
Difference is larger, it is necessary to be corrected, and the mould of the present embodiment considers that plate elastic deformation itself passes through optimization design folding surface and turns
Angle at folding, is required machining angle after bending, without correcting, and one-pass molding, so there is the above situation.
In the present embodiment, make it that bending is more smooth, in mold 130, the second inclined-plane 132 and the 3rd inclined-plane 133
Intersection set rectangular recess；Equally, in lower mould 230, the first groove face 231 and the intersection of the second groove face 232 and
The intersection of three groove faces 233 and the 4th groove face 234 is equipped with rectangular recess.The withdrawing when rectangular recess is just as turnery processing
Groove, plays the role of yielding space, since bending part plate stretches, if the not square in bending process in bending place
Shape groove, will cause bending difficult, and friction noise is big, and plate produces abrasion, and larger, such a design is deformed after bending, simply
It is ingenious, it can effectively avoid the above problem.
What deserves to be explained is general mould comprises only a pair of of mutual cooperation upper/lower die, one workpiece of time processing, and examine
It is to carry out bending at both ends to consider safe door deckle board, while end bending shape is irregular, and the present embodiment, which considers, to be added
The service life of work efficiency rate and mould, innovative two molds 130 of use coordinate with two lower moulds 230 respectively.Specifically, on
Membrane module 1 further includes upper mold seat 110 and upper mold fixed block 140, and the centre of upper mold seat 110 offers upper limit position groove, upper limit position groove
Upper mold limited block 120 is inside provided with, upper mold limited block 120 is detachably connected by bolt and upper mold seat 110, and upper limit position groove is set
Meter may be such that 120 accurate positioning of upper mold limited block, also eliminates and is bolted gap, connection is relatively reliable；Two molds 130 are right
Title is arranged on the upper mold seat 110 of 120 both sides of upper mold limited block, is connected also by bolt with upper mold seat 110, upper mold fixed block
140 are bolted on the upper mold seat 110 in the outside of mold 130, and upper mold fixed block 140 passes through bolt and mold 130
Connection, mold 130 can be pressed on the side of upper mold limited block 120 by tightening bolt.The lower mold assemblies 2 further include down
Die holder 210 and lower die fixed block 240, the centre of die holder 210 offer lower limit groove, lower die limited block are installed in lower limit groove
220；Two lower moulds 230 are symmetricly set on the die holder 210 of 220 both sides of lower die limited block, and are consolidated by bolt
Fixed, lower die fixed block 240 is bolted on the die holder 210 in the lower outside of mould 230, and lower die fixed block 240 passes through spiral shell
Bolt is connected with lower mould 230, and tightening bolt can be pressed on lower mould 230 on the side of lower die limited block 220.According to safety cabinet
The design feature of Door frame board carries out this design, once can two workpiece of bending, efficiency improve 2 times, it is often more important that, two upper molds
130, two lower moulds 230 of tool use symmetric design, and in bending process, mould component in the horizontal direction is cancelled completely,
So as to only downward pressure, be conducive to improve bending precision, also improve die life.
In addition, positioned for convenience of sheet metal bending, the lower mould 230 edge on the one side of lower die limited block 220
Length direction is provided with least two material blocking blocks 250, and backgauge screw 260 is provided with material blocking block 250.According to required bending position
Put, adjust backgauge screw 260, be required for finding bending position accurately without placing plate every time, greatly improve bending efficiency,
Improve bending precision；And multiple adjusting backgauge screws 260 are adjusted, it may be such that sheet metal bending line and sheet end surface into certain
Angle, extends bending scope.
The stamping surface and lower die that the special Bending Mould of safe door deckle board of the present embodiment passes through special shape mold 130
The cooperation of the punching press groove face of tool 230, energy time processing are high into safe door deckle board workpiece to be processed, precision, it is not necessary to two
Secondary artificial treatment, does not damage workpiece surface, easy to operate, cost is low.
Because the mould is particular manufacturing craft, the sheet metal thickness of institute's Bending Processing is between 1.8-2 mm, material Cr25Mo3Ti。
With reference to Fig. 4 and Fig. 5 by taking 2mm thickness plates as an example, illustrate how it carries out bending operation.
A kind of application method of the special Bending Mould of safe door deckle board, its operating procedure are：
1. upper die component 1 and lower mold assemblies 2 are assembled according to said structure respectively, and check to ensure that each parts
Connection is reliable；
2. lower mold assemblies 2 are placed on the workbench of hydraulic press, and will using bolt by the T-slot on workbench
Lower mold assemblies 2 are fixed；
3. lifting upper die component 1 on lower mold assemblies 2, adjust 1 position of upper die component, make the stamping surface of mold 130 with
The punching press groove face of lower mould 230 coordinates close；
After 4. hydraulic machine slide block down compresses upper die component 1, upper die component 1 is fixed to by slider of hydraulic press by bolt
On, sliding block drives upper die component 1 to move up and down 1-3 times, it is ensured that mold 130 and lower 230 cooperation position of mould are accurate；
5. first, the position of bending as needed, backgauge screw 260 is adjusted in place；Then, it is 2mm by thickness, material
Expect for Cr25Mo3One end of the plate to be processed of Ti is placed on the upper surface of lower mould 230, and plate is tightly abutted against backgauge spiral shell
On nail 260；Finally, the other end of plate is compressed by material pressing device；
6. mold 130 moves down under the driving force effect of hydraulic press, the 3rd inclined-plane of 130 stamping surface of mold
133 start to contact plate and extrude with 134 intersection of the 4th inclined-plane, when mold 130 is continued traveling downwardly to the first inclined-plane 131 and
When the intersection and web contact on two inclined-planes 132, material pressing device unclamps plate, and mold 130 continues traveling downwardly, until completing folding
It is curved, keep 15 ~ 20s.
In this step, from the 3rd inclined-plane 133 and 134 intersection of the 4th inclined-plane and web contact to the first inclined-plane 131 and the
The intersection on two inclined-planes 132 with the web contact period, the at the uniform velocity work of mold 130 is into speed V1=10 mm/s, from first
The time that the intersection on 131 and second inclined-plane 132 of inclined-plane goes downwards to extreme position with web contact to mold 130 is denoted as t1,
The work speed of mold 130 is V in time period2, meetMm/s, t value range are [0, t1].It is actual
Middle t1Generally between 1.5-2s, t is taken here1=2s, then,Mm/s, i.e. 130 downstream rate of mold are gradual
Decrease up to stopping.Due in the intersection and web contact on the first inclined-plane 131 and the second inclined-plane 132, on the outside of mould
Plate need to upwarp, material pressing device must be unclamped at this time, since plate end bending shape is asymmetric, if mold at this time
130 downstream rates are excessive, can cause plate position offset, so as to cause bending inaccurate, inventor is groped by last issue practice
The velocity variations rule of above-mentioned mold 130 is summed up, on the premise of maximum bending efficiency is ensured, it is inclined to can effectively avoid plate
The occurrence of shifting.
7. hydraulic press drives 130 fast fallback of mold, plate is removed；
8. repeating the above steps 5., 6. and 7., bending operation is carried out to the plate other end, safe door deckle board processes
Into.
Obtained safe door deckle board after processing is detected, the angle of the 3rd bending section C and plate face is 92.9 °,
Angle between second bending section B and the 3rd bending section C is 270 °, the angle between the first bending section A and the second bending section B
It is 90.2 °, meets required precision, product is qualified.
Embodiment 2
Although the Bending Processing of safe door deckle board can be completed well using the particular manufacturing craft in embodiment 1 and method,
But have a problem that, be exactly that access times are more, the working portion of mold 130 and lower mould 230 because stress it is larger,
It is easily damaged, causes to need replacing mould in use for some time, have in practice been verified that using common material and heat treatment process
The mold of processing, is easy for the first inclined-plane 131 and the second inclined-plane for mold 130 occur when using about 1600 times
There is phenomena such as bursting apart, wearing in the corner angle that 132 corner angle having a common boundary and the 3rd inclined-plane 133 and the 4th inclined-plane 134 have a common boundary, equally, under
Also there is phenomena such as bursting apart, wearing in second groove face 232 of mould 230 and the corner angle of 233 intersection of the 3rd groove face.Although embodiment
Mould factors above is considered in structure design, and can prevent crackle tendency to a certain extent, but still will be according to
Rely rational material composition and heat treatment process, so according to the design feature of above-mentioned particular manufacturing craft, the present embodiment makes every effort to find
A kind of new material and heat treatment process.The processing method of mold 130 or lower mould 230 in the mould, is first to forge, so
The shape of all parts is reprocessed into afterwards, then is refined, and is finally assembled.Wherein due to mold 130 and lower mould 230 need it is higher
Hardness, toughness and wearability, it is necessary to which special treatment process, below by taking the processing of mold 130 as an example, carries out specifically
It is bright：
A kind of processing method of the special Bending Mould of safe door deckle board, is processed mold 130, its step is：
（1）The raw material of blank prepare
It is made using rough forging, the component and mass percent of the rough forging are：C 0.38%、Si 0.25%、Mn
0.6%、S ≤ 0.023%、P ≤ 0.021%、Cr 1.34%、Mo 0.35%、ZrO20.08%, surplus Fe；
（2）The annealing of rough forging
Will be through step（1）In obtained rough forging anneal by annealing furnace to it, its annealing temperature is 825 DEG C,
Annealing time is 4 h, is cooled to 200 DEG C in the lehr, and room temperature is air-cooled to after keeping the temperature 0.5 h；
（3）The preliminary working of rough forging
By step（2）Middle rough forging is processed into the primary shape of mould on lathe, and each face retains the surplus of 1.5mm；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 1.5 h are kept the temperature after being first to heat to 440 DEG C, are then heated to 650
DEG C 1.5 h of insulation, are heated to 890 DEG C, are quenched after keeping the temperature 30 min, oil quenching, pass through subzero treatment after cooling again, at deep cooling
The temperature of reason is -206 DEG C, keeps 1.2 h, returns to room temperature in atmosphere, be once tempered, and temperature is 140 DEG C, is cooled to
0.5 h is placed after room temperature, then carries out double tempering, temperature is 175 DEG C.
In this step, oil quenching is carried out using quenching oil, the constituent and each component mass fraction of quenching oil are：Base oil
(VHVI) 26 parts, cold multiple 0.3 part of agent is urged, black multiple 0.1 part of agent, 0.3 part of brightener, 3 parts of surfactant；Wherein, urge cold
Multiple agent is dicyclopentadiene and EPDM in mass ratio 3:2 mixture, black multiple agent for acrylate, coloring agent (
BlackAFR, the oil stain of BASF AG's production) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener are petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant are rosin acid polyoxyethylene
Ester.
The quenching oil can make mold 130 or lower mould 230 quenching just enter oil when with the cooling velocity of 65-85 DEG C/s into
Row cooling, and the temperature that the surface-active nigrescence preparation in quenching oil absorbs piece surface obtains higher energy rapidly in part
Surface aggregation is into fine and close membrane structure, while piece surface temperature is with quenching oil heat convection and providing nigrescence preparation heat
Afterwards, rapid drop in temperature, the transition point for effectively passing over mould steel heat treatment C curve obtain preferable microstructure form.
（5）The deep processing of mould
Remove step（4）The oxide layer on rear mold surface is handled, and is assembled on grinding machine, carries out grinding, respectively
Face retains the surplus of 0.7 mm, after placing 1 day, carries out grinding again to required size；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness for detecting obtained mold is HRC59, and each surface hardness difference uses the mold within ± 1
After processing uses 10,000 times its still can normal use, the service life is high.
Embodiment 3
A kind of processing method of special Bending Mould of safe door deckle board of the present embodiment, is processed lower mould 230,
Its step is：
（1）The raw material of blank prepare
It is made using rough forging, the component and mass percent of the rough forging are：C 0.4%、Si 0.3%、Mn
0.65%、S ≤ 0.023%、P ≤ 0.021%、Cr 1.4%、Mo 0.42%、ZrO20.1%, surplus Fe；
（2）The annealing of rough forging
Will be through step（1）In obtained rough forging anneal by annealing furnace to it, its annealing temperature is 830 DEG C,
Annealing time is 4.2 h, is cooled to 250 DEG C in the lehr, and room temperature is air-cooled to after keeping the temperature 0.8h；
（3）The preliminary working of rough forging
By step（2）Middle rough forging is processed into the primary shape of mould on lathe, and each face retains the surplus of 1.5mm；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 2 h are kept the temperature after being first to heat to 480 DEG C, are then heated to 670 DEG C
1.8 h are kept the temperature, are heated to 900 DEG C, are quenched after keeping the temperature 40 min, oil quenching, passes through subzero treatment, subzero treatment again after cooling
Temperature be -213 DEG C, keep 1.3 h, return to room temperature in atmosphere, be once tempered, temperature be 150 DEG C, be cooled to often
0.7 h is placed after temperature and carries out double tempering, temperature is 184 DEG C；
In this step, oil quenching is carried out using quenching oil, the constituent and each component mass fraction of quenching oil are：Base oil
(VHVI) 27 parts, cold multiple 0.5 part of agent is urged, black multiple 0.2 part of agent, 0.4 part of brightener, 3.5 parts of surfactant；Wherein, urge
Cold multiple agent is dicyclopentadiene and EPDM in mass ratio 3:2 mixture, black multiple agent for acrylate, coloring agent (
BlackAFR, the oil stain of BASF AG's production) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener are petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant are rosin acid polyoxyethylene
Ester.
（5）The deep processing of mould
Remove step（4）The oxide layer on rear mold surface is handled, and is assembled on grinding machine, carries out grinding, respectively
Face retains the surplus of 0.8 mm, after placing 1.5 days, carries out grinding again to required size；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness for detecting obtained lower mould is HRC60, and each surface hardness difference uses the lower mould within ± 1
After processing uses 10,000 times its still can normal use, the service life is high.
Embodiment 4
A kind of processing method of special Bending Mould of safe door deckle board of the present embodiment, is processed mold 130,
Its step is：
（1）The raw material of blank prepare
It is made using rough forging, the component and mass percent of the rough forging are：C 0.45%、Si 0.35%、Mn
0.71%、S ≤ 0.023%、P ≤ 0.021%、Cr 1.48%、Mo 0.48%、ZrO20.11%, surplus Fe；
（2）The annealing of rough forging
Will be through step（1）In obtained rough forging anneal by annealing furnace to it, its annealing temperature is 835 DEG C,
Annealing time is 4.5 h, is cooled to 300 DEG C in the lehr, and room temperature is air-cooled to after keeping the temperature 1.2 h；
（3）The preliminary working of rough forging
By step（2）Middle rough forging is processed into the primary shape of mould on lathe, and each face retains the surplus of 1.5mm；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 2.5 h are kept the temperature after being first to heat to 530 DEG C, are then heated to 700
DEG C 2 h of insulation, are heated to 910 DEG C, are quenched after keeping the temperature 45 min, oil quenching, passes through subzero treatment, subzero treatment again after cooling
Temperature be -220 DEG C, keep 1.5 h, return to room temperature in atmosphere, be once tempered, temperature be 160 DEG C, be cooled to often
1 h is placed after temperature, then carries out double tempering, temperature is 195 DEG C；
In this step, oil quenching is carried out using quenching oil, the constituent and each component mass fraction of quenching oil are：Base oil
(VHVI) 28 parts, cold multiple 0.7 part of agent is urged, black multiple 0.2 part of agent, 0.6 part of brightener, 3 parts of surfactant；Wherein, urge cold
Multiple agent is dicyclopentadiene and EPDM in mass ratio 3:2 mixture, black multiple agent for acrylate, coloring agent (
BlackAFR, the oil stain of BASF AG's production) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener are petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant are rosin acid polyoxyethylene
Ester.
（5）The deep processing of mould
Remove step（4）The oxide layer on rear mold surface is handled, and is assembled on grinding machine, carries out grinding, respectively
Face retains the surplus of 1 mm, after placing at least 1 day, carries out grinding again to required size；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness for detecting obtained mold is HRC58, and each surface hardness difference uses the upper mold within ± 1.5
After tool processing uses 10,000 times its still can normal use, the service life is high.
Example of the present invention is only that the preferred embodiment of the present invention is described, not to present inventive concept and
Scope is defined, on the premise of design philosophy of the present invention is not departed from, technology of this area engineers and technicians to the present invention
The various modifications and improvement that scheme is made, should all fall into protection scope of the present invention.
Claims (2)
1. a kind of Bending Mould for being exclusively used in safe door deckle board, including upper die component（1）And lower mold assemblies（2）；Described is upper
Membrane module（1）Including mold（130）, lower mold assemblies（2）Including lower mould（230）, it is characterised in that：
The mold（130）Lower face be stamping surface, by the first inclined-plane from side to opposite side（131）, the second inclined-plane
（132）, the 3rd inclined-plane（133）With the 4th inclined-plane（134）It is sequentially connected composition, the first inclined-plane（131）With mold（130）Side
Between angle be 240 °, the first inclined-plane（131）With the second inclined-plane（132）Between angle be 266 °, the second inclined-plane（132）With
3rd inclined-plane（133）Between angle be 91 °, the 4th inclined-plane（134）With the second inclined-plane（132）It is parallel, the first inclined-plane（131）With
Second inclined-plane（132）Intersection position be higher than the 3rd inclined-plane（133）With the 4th inclined-plane（134）Intersection position；
The lower mould（230）Upper surface be provided with and mold（130）The punching press groove face that matches of stamping surface, the punching
Indent face is from side to opposite side by the first groove face（231）, the second groove face（232）, the 3rd groove face（233）With the 4th groove face
（234）It is sequentially connected composition, the first groove face（231）With lower mould（230）Angle between upper surface is 150 °, the first groove face
（231）With the second groove face（232）Between angle be 94 °, the second groove face（232）With the 3rd groove face（233）Between angle be
269 °, the 4th groove face（234）With the second groove face（232）It is parallel；
The upper die component（1）Further include upper mold seat（110）With upper mold fixed block（140）, upper mold seat（110）Upper mold is installed
Limited block（120）；The mold（130）With two, upper mold limited block is symmetricly set on（120）The upper mold seat of both sides
（110）On；The upper mold fixed block（140）It is arranged on mold（130）The upper mold seat in outside（110）On, and compress upper mold
Tool（130）Lateral surface；
The lower mold assemblies（2）Further include die holder（210）With lower die fixed block（240）, die holder（210）Lower die is installed
Limited block（220）；The lower mould（230）With two, lower die limited block is symmetricly set on（220）The die holder of both sides
（210）On；The lower die fixed block（240）It is arranged on lower mould（230）The die holder in outside（210）On, and compress lower die
Tool（230）Lateral surface；
The upper mold seat（110）Centre offer upper limit position groove, upper mold limited block（120）In upper limit position groove；Described
Die holder（210）Centre offer lower limit groove, lower die limited block（220）In lower limit groove.
A kind of 2. Bending Mould for being exclusively used in safe door deckle board according to claim 1, it is characterised in that：Under described
Mould（230）Close to lower die limited block（220）One side on be provided with least two material blocking blocks along its length（250）, gear
Expect block（250）On backgauge screw is installed（260）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611080291.5A CN106424371B (en) | 2016-11-30 | 2016-11-30 | A kind of Bending Mould for being exclusively used in safe door deckle board |
| CN201711283437.0A CN107999624B (en) | 2016-11-30 | 2016-11-30 | A kind of use and processing method of the dedicated Bending Mould of safe door deckle board |
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| CN107695140A (en) * | 2017-11-13 | 2018-02-16 | 北京天立成信机械电子设备有限公司 | A kind of U-shaped workpiece hydraulic forming device |
| CN107999628A (en) * | 2017-12-11 | 2018-05-08 | 安源客车制造有限公司 | A kind of ceiling covering bent into shape frock |
| CN108906924A (en) * | 2018-07-17 | 2018-11-30 | 河南森源电气股份有限公司 | A kind of bus bar bending tool |
| CN109127798A (en) * | 2018-09-06 | 2019-01-04 | 湖州圣远物流有限公司 | A kind of sheet metal bending device |
| CN109926500B (en) * | 2019-01-07 | 2020-11-24 | 安徽力源数控刃模具制造有限公司 | Alloy aluminum plate arc pressing die material and processing technology thereof |
| CN110184440A (en) * | 2019-05-29 | 2019-08-30 | 安徽绿能技术研究院有限公司 | The heat treatment process of Bending Mould |
| CN110548783B (en) * | 2019-09-14 | 2020-08-11 | 江苏省健尔康医用敷料有限公司 | Automatic production device for overturning slide-pulling plate of medical gauze textile machine |
| CN111112814A (en) * | 2019-12-26 | 2020-05-08 | 李钢 | Resistance welding device for electric wire |
| CN117583436B (en) * | 2024-01-19 | 2024-04-19 | 中城投集团新能源有限责任公司 | Bending processing device and method for photovoltaic building integrated medium-wave crest roof board |
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Also Published As
| Publication number | Publication date |
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| CN106424371A (en) | 2017-02-22 |
| CN107999624A (en) | 2018-05-08 |
| CN107999624B (en) | 2019-03-29 |
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Denomination of invention: A bending die for safe door frame plate Effective date of registration: 20211227 Granted publication date: 20180413 Pledgee: Dangtu County sub branch of China Post Savings Bank Co.,Ltd. Pledgor: ANHUI LIYUAN NUMERICAL CONTROL CUTTING TOOL AND PATTERNS MANUFACTURING Co.,Ltd. Registration number: Y2021980016289 |
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