CN106424371A - Bending die for safe case door frame plate and using and machining method thereof - Google Patents
Bending die for safe case door frame plate and using and machining method thereof Download PDFInfo
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- CN106424371A CN106424371A CN201611080291.5A CN201611080291A CN106424371A CN 106424371 A CN106424371 A CN 106424371A CN 201611080291 A CN201611080291 A CN 201611080291A CN 106424371 A CN106424371 A CN 106424371A
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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 bending die for a safe case door frame plate and a using and machining method thereof and belongs to the field of die design. The die comprises an upper die assembly provided with an upper die body, and a lower die assembly provided with a lower die body. The stamping face of the upper die body is matched with the stamping groove face of the lower die body. The die can machine a safe case door frame plate workpiece required to be machined at a time, precision is high, secondary manual treatment is not needed, damage to the surface of the workpiece is avoided, operation is convenient, and cost is low. The using method of the die can machine the safe case door frame plate fast and efficiently and is high in bending efficiency and good in finished product quality. The machining method of the die is used in the upper die body or the lower die body, firstly, forging is carried out, then the shape of various parts is machined, then accurate grinding is carried out, finally, assembling is carried out, the special heat treatment technology is adopted, the hardness, the tenacity and the abrasion resistance of the die meet the technological requirement, and the die is still normal after being used for over ten thousand times and long in life.
Description
Technical field
The invention belongs to Design of Dies field, specifically, it 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 uses and processing method.
Background technology
Bending machine die is the instrument for machine-shaping plate for the bender, and this instrument is made up of various parts, different
The part that constitutes of mould different.It mainly realizes the processing of article profile by the change of institute's moulding material physical state.
So that blank is become by the guiding each other of upper die of bending machine and lower mould in the presence of bender pressure has given shape and size
Workpiece.In actual production process, enterprise can configure different FLUTE ANGLE according to the difference of shaping workpiece shape or size
Lower mould.But it is as expanding economy, the shape of the workpiece of bending develops towards variation with complicating, often at one piece
Need on plate to carry out multiple bending to can be only achieved required form, such as, in safety cabinet industry, need shown in Fig. 1 during processing doorframe
The bending plate of shape, this sheet forming two ends is symmetrical, is to form respectively through three bendings of identical at the two ends of flat sheet,
It is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 3rd bending section C from the bending section of plate end ecto-entad
Angle with plate face is 93 °, and the angle of the second bending section B and the 3rd bending section C is 270 °, and the first bending section A and second
Angle between bending section B is 90 °.Traditional this 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, takes time and effort, working (machining) efficiency is low after each bending.
In actual production, a lot of people attempt by way of a punching press multiple tracks bending, such as China Patent No.：
201120046795.1, in publication date on December 07th, 2011, disclose a kind of a entitled more than 5mm slab zigzag bending
The patent document of mould, this mould include upper die and lower die it is characterised in that described upper mould stamping surface be zigzag, described under
The stamping surface of mould is matched with upper mould.The program solves the problems, such as that bending aspect ratio is unable to bending and original when less
Punching press twice is changed to a punching press and then can complete twice bending, so substantially increases production efficiency it is ensured that the matter of product
Amount, to reduce the purpose of manufacturing cost.But the program cannot process the shape shown in Fig. 1, although in addition, it can be simultaneously
Processing twice bending, but workpiece position on lower mould and is difficult, bending position inaccurate it is often more important that, due to elastic restoring force
Presence, after bending, bending angle is inconsistent with required product, need correct, this for upper and lower mould design propose very high
Requirement.
And for example, China Patent No.：201110166763.X, in publication date on November 21st, 2011, discloses a entitled
Adjustable Z-shaped offset bending mold, belongs to panel beating Bending Mould, it is characterized in that this offset bending die mainly by upper die and lower die group
Become, upper mould is mainly made up of upper bolster, upper fixed mould, upper adjustable pressing mold, upper compound gasket and upper fixing bolt again, and lower mould is again
Main by die shoe, lower fixed mould, under adjustable pressing mold and lower fixing bolt form, open up and bender in the bottom of upper bolster
Pressure line be in oblique groove on the right angle of δ angle, correspond in oblique groove in here install fixed mould, upper adjustable pressing mold and on
Compound gasket, opens up on the top of die shoe and also becomes the oblique groove in the right angle of δ angle with vertical center line, in the oblique groove of here
Corresponding install lower fixed mould, under adjustable pressing mold and lower compound gasket, and this upper and lower fixed mould and upper and lower adjustable pressing mold
Bottom surface or top surface are all the bottom surfaces or the corresponding inclined-plane in θ angle of top surface, upper and lower mould matched moulds with upper and lower die holder, and Z-shaped workpiece becomes
Type, low cost, quality is good.The mode of this patent implementation is also corresponding with workpiece shapes to be processed by offer one
Mould completing, but this mould also cannot process the shape shown in Fig. 1.Topmost reason be mould cannot be processed into and
The corresponding mould of Fig. 1 shape, so original Design of Dies theory will be changed, proposes new mode of thinking, it is important that with
The requirement more and more higher to product for the people, the precision of processed product to also require that more and more higher.
Content of the invention
1st, problem to be solved
Producing in safety cabinet doorframe needs above-mentioned bending part, and it is respectively through identical three times at the two ends of flat sheet
Bending forms, and is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 3rd folding from the inside bending section in plate end
The angle of curved segment C and plate face is 93 °, and the angle of the second bending section B and the 3rd bending section C is 270 °, and the first bending section A and
Angle between second bending section B is 90 °.Processing this workpiece in prior art, to there is processing difficulties, inefficient, machining accuracy low
Problem, 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,
Efficiency high, machining accuracy is high, to workpiece not damaged.In addition, present invention also offers this mold use method, by the method
Above-mentioned safe door deckle board can efficiently be produced.Further, since this mould is in order to complete to process the function of safe door deckle board,
Guarantee service life persistently in addition it is also necessary to special processing technique is carried out to upper/lower die it is ensured that upper/lower die have higher hard
Degree, the processing method that the present invention also provides this upper/lower die.
2nd, technical scheme
For solving 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；Described upper die component bag
Include mold, lower mold assemblies include lower mould it is characterised in that：
The lower surface of described 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 and the second inclined-plane are put down
OK, the position of intersecting point on the first inclined-plane and the second inclined-plane is higher than the position of intersecting point on the 3rd inclined-plane and the 4th inclined-plane；
The upper surface of described lower mould is provided with the punching press groove face matching with the stamping surface of mold, this punching press groove face
Be sequentially connected and 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 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, described upper die component also includes upper bolster and upper mould fixed block, and it is spacing that upper bolster is provided with mould
Block；Described mold has two, is symmetricly set on the upper bolster of mould limited block both sides；Described upper mould fixed block sets
Put on the upper bolster outside mold, and compress the lateral surface of mold；
Described lower mold assemblies also include die shoe and lower mould fixed block, and die shoe is provided with lower mould limited block；Described
Lower mould has two, is symmetricly set on the die shoe of lower mould limited block both sides；Described lower mould fixed block is arranged on lower mould
On the die shoe in tool outside, and compress the lateral surface of lower mould.
Further, the centre of described upper bolster offers upper limit position groove, and upper mould limited block is located in upper limit position groove；Described
The centre of die shoe offer lower limit groove, lower mould limited block is located in lower limit groove.
Further, described lower mould is provided with least two on the one side of lower mould limited block along its length
Material blocking block, material blocking block is provided with backgauge screw.
A kind of using method of the special Bending Mould of safe door deckle board, its operating procedure is：
1. upper die component and lower mold assemblies are assembled respectively, and it is reliable to check to ensure that each parts connect；
2. lower mold assemblies are placed on the workbench of hydraulic press, and are used under bolt general by the T-slot on workbench
Membrane module is fixed；
3. lifting upper die component, on lower mold assemblies, adjusts upper die component position, makes the stamping surface of mold and lower mould
The cooperation of punching press groove face closely；
4., after hydraulic machine slide block down compression upper die component, by bolt, upper die component is fixed on slider of hydraulic press,
Slide block drives upper die component to move up and down 1-3 time it is ensured that mold is accurate with lower mould cooperation position；
5. by thickness to be processed be 1.8-2mm, using Cr25Mo3One end of the sheet material of Ti preparation is placed on the upper of lower mould
The other end of sheet material on end face, after adjusting bending position, is compressed by material pressing device；
6. mold moves down under the driving force effect of hydraulic press, and the 3rd inclined-plane of mold stamping surface is oblique with the 4th
Face intersection comes into contact with sheet material and extrudes, and continues traveling downwardly intersection and sheet material to the first inclined-plane and the second inclined-plane when mold
During contact, material pressing device unclamps sheet material, and mold continues traveling downwardly, until completing bending, keeps 15～20s；
7. hydraulic press drives mold fast fallback, takes off sheet material；
8. 5., 6. and 7. repeat the above steps, carry out bending operation to the sheet material other end, and safe door deckle board processes
Become.
Further, described step 6. in, oblique to first with web contact with the 4th inclined-plane intersection from the 3rd inclined-plane
In the intersection on face and the second inclined-plane and web contact time period, mold at the uniform velocity work is entered, and speed is V1=10mm/s, from first
The time that the intersection on inclined-plane and the second inclined-plane and web contact go downwards to extreme position to mold is designated as t1, in time period
The work speed of mold is V2, meetT span is [0, t1].
Although the Bending Processing of safe door deckle board can be completed well using above-mentioned particular manufacturing craft and method, exist
It is simply that access times are many, the working portion of mold and lower mould, because stress is larger, be easily damaged, leads to one problem
Need more mold exchange in use for some time, have in practice been verified that the mold using common material and Technology for Heating Processing processing,
It is easy for corner angle and the 3rd inclined-plane of the first inclined-plane and the second inclined-plane boundary that mold occurs when using about 1600 times
The phenomenons such as bursting apart, weares and teares in the corner angle having a common boundary with the 4th inclined-plane, equally, the second groove face of lower mould and the 3rd groove face intersection
Corner angle the phenomenons such as bursting apart, weares and teares also occur.Although the present invention considers factors above it is possible to certain in structure design
Prevent crackle tendency in degree, but be also intended to rely on rational material composition and Technology for Heating Processing, thus special for the present invention
With the construction featuress of mould, the present invention makes every effort to find a kind of new material and Technology for Heating Processing.
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) raw material of blank prepares
It is obtained using rough forging, the component of this rough forging and mass percent 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%th, ZrO20.08～0.11%, balance of Fe；
(2) annealing of rough forging
Rough forging through obtaining in step (1) is annealed to it through annealing furnace, its annealing temperature be 825～
835 DEG C, annealing time is 4～4.5h, is cooled to 200～300 DEG C in the lehr, is air cooled to room temperature after insulation 0.5～1.2h；
(3) preliminary working of rough forging
Rough forging in step (2) is processed on lathe the primary shape of mould, each face retains the surplus of 1.5mm；
(4) heat treatment of mould
The mould that will obtain through step (3) machining, is incubated 1.5-2.5h, then adds again after being first to heat to 440-530 DEG C
Heat, to 650-700 DEG C of insulation 1.5-2h, is heated to 890-910 DEG C, quenches after insulation 30-45min, oil quenching, warp again after cooling
Cross subzero treatment, the temperature of subzero treatment is -206 to -220 DEG C, keeps 1.2-1.5h, return to room temperature in atmosphere, once
Tempering, temperature is 140-160 DEG C, places 0.5-1h, then carry out double tempering after being cooled to room temperature, and temperature is 175-
195℃；
(5) deep processing of mould
Remove the oxide layer that step (4) processes rear mold surface, and be assembled on grinding machine, carry out grinding, respectively
Face retains the surplus of 0.7-1mm, after placing at least 1 day, carries out grinding again to required size；
(6) detection of mould, detected size and the number of degrees, qualified after, complete process.
Further, in described step (1), the component of rough forging and mass percent are：C 0.4%, Si
0.3%th, Mn0.65%, S≤0.023%, P≤0.021%, Cr 1.4%, Mo 0.42%, ZrO20.1%, balance of Fe.
Further, in described step (2), the annealing temperature of rough forging is 830 DEG C, and annealing time is 4.2h, is moving back
It is cooled to 250 DEG C in stove, after insulation 0.8h, carry out air cooling；In described step (4), the heat treatment of mould is to be first to heat to 480 DEG C
It is incubated 2h afterwards, be then heated to 670 DEG C of insulation 1.8h, be heated to 900 DEG C, quench after insulation 40min, oil quenching, after cooling
Again through subzero treatment, the temperature of subzero treatment is -213 DEG C, keeps 1.3h, returns to room temperature in atmosphere, be once tempered, and returns
Fiery temperature is 150 DEG C, places 0.7h and carries out double tempering, temperature is 184 DEG C after being cooled to room temperature.
Further, in described step (4), oil quenching, the constituent of quenching oil and each component are carried out using quenching oil
Mass fraction is：Base oil 26-28 part, urges cold multiple agent 0.3-0.7 part, and black multiple agent 0.1-0.2 part, brightener 0.3-0.6 part,
Surfactant 3-3.5 part；Wherein, cold multiple agent is urged to be dicyclopentadiene and EPDM in mass ratio 3:2 mixture, blacks
Multiple agent is acrylate, stain and wetting agent in mass ratio 2:3:1 mixture, brightener is petroleum sulfonate and binary acid
In mass ratio 1:2 mixture, surfactant is polyoxylethylene abietate.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) the punching press groove face of the stamping surface by special mold for the special Bending Mould of the present invention and lower mould, energy
Time processing becomes safe door deckle board workpiece to be processed, and high precision, it is not necessary to secondary artificial treatment, does not have to surface of the work
Damage, easy to operate, low cost；What is more important, the elastic reaction being existed due to sheet material itself, using general mould bending
Afterwards, bending angle deviation is larger, needs 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 sheet material elastic deformation passes through optimization design folding surface turning point angle, is after bending
Required machining angle, need not correct, and one-shot forming, no cumulative errors, high precision；
(2) the special Bending Mould of the present invention, for convenience of positioning during sheet metal bending, along length on the one side of lower mould
Degree direction is provided with material blocking block, and material blocking block is provided with backgauge screw, by adjusting backgauge screw, adjustable sheet metal bending position
Put；
(3) using method of the present invention, can quickly and efficiently process safe door deckle board using this special Bending Mould,
Bending efficiency high, quality of finished product good.
(4) processing method of the special Bending Mould of safe door deckle board of the present invention, the mold processed or lower mould have
Higher hardness, toughness and wearability, and hardness is evenly distributed, processing use more than more than ten thousand times still normal, the life-span is high.
Brief description
Fig. 1 is the safe door deckle board profiled member of required processing；
Fig. 2 is a kind of upper die component structural representation of the special Bending Mould of present invention safe door deckle board；
Fig. 3 is a kind of lower mold assemblies structural representation of the special Bending Mould of present invention safe door deckle board；
Fig. 4 starts view during bending for a kind of special Bending Mould of present invention safe door deckle board；
Fig. 5 completes view during bending for a kind of special Bending Mould of present invention safe door deckle board.
Label in accompanying drawing is expressed as：
1st, upper die component；110th, upper bolster；120th, upper mould 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 mould fixed block；
2nd, lower mold assemblies；210th, die shoe；220th, lower mould 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 mould fixed block；250th, material blocking block；260th, backgauge screw.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is further described below.
Embodiment 1
As shown in Figure 2 and Figure 3, the special Bending Mould of a kind of safe door deckle board of the present embodiment, including upper die component 1 He
Lower mold assemblies 2；
Wherein, described upper die component 1 includes mold 130, and the lower surface of described 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 one inclined-plane 131 and mold 130 side 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 position of intersecting point on one inclined-plane 131 and the second inclined-plane 132 is higher than the position of intersecting point on the 3rd inclined-plane 133 and the 4th inclined-plane 134.
Described 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, this 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 mould 230 upper surface 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 our required processing, the 3rd bending section C is 93 ° with the angle of plate face,
The angle of the second bending section B and the 3rd bending section C is 270 °, and the angle between 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 face 132 and the 3rd inclined-plane 133 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
Different.Need to illustrate, the elastic reaction existing due to sheet material itself, after general mould bending, bending angle is inclined herein
Difference is larger, needs to be corrected, and the mould of the present embodiment considers that sheet material elastic deformation itself is turned by optimization design folding surface
Angle at folding, is required machining angle, need not correct after bending, and one-shot forming, so above-mentioned situation.
In the present embodiment, for making bending more smooth, in mold 130, the second inclined-plane 132 and the 3rd inclined-plane 133
Intersection setting rectangular recess；Equally, in lower mould 230, the intersection of the first groove face 231 and the second groove face 232 and
The intersection of three groove faces 233 and the 4th groove face 234 is equipped with rectangular recess.This rectangular recess is just as withdrawing during turnery processing
Groove, plays, in bending place, the effect making a concession space, because bending part sheet material stretches, without this square in Forging Process
Shape groove, will lead to bending difficult, friction noise is big, sheet material produces abrasion, and deforms larger after bending, this kind of design, simply
Ingenious, the problems referred to above can be prevented effectively from.
What deserves to be explained is, general mould comprises only the upper/lower die that cooperates, one workpiece of time processing a pair, and examines
Considering safe door deckle board is all to carry out bending at two ends, and end bending shape is irregular simultaneously, the present embodiment consider plus
Work efficiency rate and the life-span of mould, being coordinated using 130 respectively with two lower moulds 230 of two molds of novelty.Specifically, on
Membrane module 1 also includes upper bolster 110 and upper mould fixed block 140, and the centre of upper bolster 110 offers upper limit position groove, upper limit position groove
Inside it is provided with mould limited block 120, upper mould limited block 120 is detachably connected with upper bolster 110 by bolt, the setting of upper limit position groove
Meter can make upper mould limited block 120 accurate positioning, also eliminates bolt connection gap, connects relatively reliable；Two molds 130 are right
Claim to be arranged on the upper bolster 110 of mould limited block 120 both sides, be connected with upper bolster 110 also by bolt, upper mould fixed block
On 140 upper bolsters 110 being bolted on mold 130 outside, upper mould fixed block 140 passes through bolt and mold 130
Connect, tightening bolt, mold 130 can be pressed on the side of upper mould limited block 120.Under described lower mold assemblies 2 also include
Die holder 210 and lower mould fixed block 240, the centre of die shoe 210 offers lower limit groove, installs lower mould limited block in lower limit groove
220；Two described lower moulds 230 are symmetricly set on the die shoe 210 of lower mould limited block 220 both sides, and solid by bolt
Fixed, lower mould fixed block 240 is bolted on the die shoe 210 in lower mould 230 outside, and lower mould fixed block 240 passes through spiral shell
Bolt is connected with lower mould 230, and tightening bolt, lower mould 230 can be pressed on the side of lower mould limited block 220.According to safety cabinet
The construction featuress of Door frame board carry out this design, once can two workpiece of bending, efficiency improve 2 times it is often more important that, two upper moulds
130, two lower moulds 230 of tool adopt symmetric design, and in Forging Process, mould component in the horizontal direction is cancelled completely,
Thus only downward pressure, be conducive to improving bending precision, also improve die life.
Additionally, for convenience of sheet metal bending positioning, described lower mould 230 edge on the one side of lower mould limited block 220
Length direction is provided with least two material blocking blocks 250, and material blocking block 250 is provided with backgauge screw 260.According to required bending position
Put, adjust backgauge screw 260, sheet material need not be placed every time and be required for finding bending position accurately, greatly improve bending efficiency,
Improve bending precision；And multiple regulation backgauge screws 260 are adjusted, sheet metal bending line can be made with sheet end surface to become certain
Angle, extends bending scope.
The special Bending Mould of safe door deckle board of the present embodiment passes through the stamping surface of special shape mold 130 and lower mould
The cooperation of the punching press groove face of tool 230, time processing can become safe door deckle board workpiece to be processed, high precision is it is not necessary to two
Secondary artificial treatment, does not damage to surface of the work, easy to operate, low cost.
Because this mould is particular manufacturing craft, between 1.8-2mm, material is Cr to the sheet metal thickness of institute's Bending Processing25Mo3Ti.
With reference to Fig. 4 and Fig. 5, illustrate how it carries out bending operation taking 2mm thickness sheet material as a example.
A kind of using method of the special Bending Mould of safe door deckle board, its operating procedure is：
1. upper die component 1 and lower mold assemblies 2 are assembled according to said structure respectively, and check to ensure that each parts even
Connect reliability；
2. lower mold assemblies 2 are placed on the workbench of hydraulic press, and are used under bolt general by the T-slot on workbench
Membrane module 2 is fixing；
3. lifting upper die component 1, on lower mold assemblies 2, adjusts upper die component 1 position, make the stamping surface of mold 130 with
The punching press groove face cooperation of lower mould 230 is closely；
4., after hydraulic machine slide block down compression upper die component 1, upper die component 1 is fixed to by slider of hydraulic press by bolt
On, slide block drives upper die component 1 to move up and down 1-3 time it is ensured that mold 130 is accurate with lower mould 230 cooperation position；
5. first, the position of bending as needed, backgauge screw 260 is adjusted and puts in place；Then, thickness is 2mm, material
For Cr25Mo3One end of the sheet material to be processed of Ti is placed on the upper surface of lower mould 230, and sheet material is tightly abutted against backgauge screw
On 260；Finally, the other end of sheet material is compressed by material pressing device；
6. mold 130 moves down under the driving force effect of hydraulic press, the 3rd inclined-plane of mold 130 stamping surface
133 come into contact with sheet material and extrude with the 4th inclined-plane 134 intersection, when mold 130 continues traveling downwardly to the first inclined-plane 131 and
When the intersection on two inclined-planes 132 and web contact, material pressing device unclamps sheet material, and mold 130 continues traveling downwardly, until completing to roll over
Curved, keep 15～20s.
In this step, from the 3rd inclined-plane 133 and the 4th inclined-plane 134 intersection and web contact to the first inclined-plane 131 and the
In the intersection on two inclined-planes 132 and web contact time period, mold 130 at the uniform velocity work is entered, and speed is V1=10mm/s, from first
The time that the intersection on inclined-plane 131 and the second inclined-plane 132 and web contact go downwards to extreme position to mold 130 is designated as t1,
In time period, the work speed of mold 130 is V2, meetT span is [0, t1].Real
T in border1Typically between 1.5-2s, take t here1=2s, then, and V2=10-2.5t2Mm/s, that is, mold 130 downstream rate by
Gradually decrease up to stopping.During due to the intersection on the first inclined-plane 131 and the second inclined-plane 132 and web contact, outside mould
The sheet material of side needs to upwarp, and now must unclamp material pressing device, because sheet material end bending shape is asymmetric, if now going up mould
Have 130 downstream rates excessive, sheet material position can be led to offset, thus causing bending inaccurate, inventor passes through last practice and touches
Rope sums up the velocity variations rule of above-mentioned mold 130, on the premise of ensureing maximum bending efficiency, can be prevented effectively from sheet material
The generation of drift condition.
7. hydraulic press drives mold 130 fast fallback, takes off sheet material；
8. 5., 6. and 7. repeat the above steps, carry out bending operation to the sheet material other end, and safe door deckle board processes
Become.
, being detected, the 3rd bending section C is 92.9 ° with the angle of plate face to obtained safe door deckle board after processing,
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 it is simply that access times are many, the working portion of mold 130 and lower mould 230 because stress larger,
It is easily damaged, lead to need more mold exchange in use for some time, have in practice been verified that using common material and Technology for Heating Processing
The mold of processing, is easy for the first inclined-plane 131 and the second inclined-plane mold 130 when using about 1600 times
The phenomenons such as bursting apart, weares and teares in the corner angle that the corner angle of 132 boundaries and the 3rd inclined-plane 133 and the 4th inclined-plane 134 have a common boundary, equally, under
Also the phenomenons such as bursting apart, weares and teares in the corner angle of the second groove face 232 of mould 230 and the 3rd groove face 233 intersection.Although embodiment
Mould consider factors above in structure design it is possible to prevent crackle tendency to a certain extent, but be also intended to according to
Rely rational material composition and Technology for Heating Processing, so according to the construction featuress of above-mentioned particular manufacturing craft, the present embodiment makes every effort to find
A kind of new material and Technology for Heating Processing.The processing method of mold 130 or lower mould 230 in this mould, is first to forge, so
It is reprocessed into the shape of all parts afterwards, then refines, finally assemble.Wherein due to mold 130 and lower mould 230 need higher
Hardness, toughness and wearability, need special handling process, below taking the processing of mold 130 as a example, carry out specifically
Bright：
A kind of processing method of the special Bending Mould of safe door deckle board, is processed to mold 130, its step is：
(1) raw material of blank prepares
It is obtained using rough forging, the component of this rough forging and mass percent are：C 0.38%, Si 0.25%, Mn
0.6%th, S≤0.023%, P≤0.021%, Cr 1.34%, Mo 0.35%, ZrO20.08%, balance of Fe；
(2) annealing of rough forging
Rough forging through obtaining in step (1) is annealed to it through annealing furnace, its annealing temperature is 825 DEG C,
Annealing time is 4h, is cooled to 200 DEG C in the lehr, is air cooled to room temperature after insulation 0.5h；
(3) preliminary working of rough forging
Rough forging in step (2) is processed on lathe the primary shape of mould, each face retains the surplus of 1.5mm；
(4) heat treatment of mould
The mould that will obtain through step (3) machining, is incubated 1.5h after being first to heat to 440 DEG C, is then heated to 650 DEG C
Insulation 1.5h, is heated to 890 DEG C, quenches, oil quenching, again through subzero treatment, the temperature of subzero treatment after cooling after insulation 30min
Spend for -206 DEG C, keep 1.2h, return to room temperature in atmosphere, be once tempered, temperature is 140 DEG C, after being cooled to room temperature
Place 0.5h, then carry out double tempering, temperature is 175 DEG C.
In this step, oil quenching is carried out using quenching oil, the constituent of quenching oil and each constituent mass number are：Base oil
(VHVI) 26 parts, urge cold multiple 0.3 part of agent, 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, the multiple agent that blacks is acrylate, stain
(BlackAFR, the oil stain that BASF AG produces) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener is petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant is rosin acid polyoxyethylene
Ester.
This quenching oil can make mold 130 or lower mould 230 enter with the rate of cooling of 65-85 DEG C/s when quenching just enters oil
Row cooling, and the temperature that the surface activity nigrescence preparation in quenching oil absorbs piece surface obtains higher energy rapidly in part
Surface aggregation becomes fine and close membrane structure, simultaneously piece surface temperature with quenching oil heat convection and nigrescence preparation heat is provided
Afterwards, rapid drop in temperature, the transition point effectively passing over mould steel heat treatment C curve obtains preferable microstructure form.
(5) deep processing of mould
Remove the oxide layer that step (4) processes rear mold surface, and be assembled on grinding machine, carry out grinding, respectively
Face retains the surplus of 0.7mm, after placing 1 day, carries out grinding again to required size；
(6) detection of mould, detected size and the number of degrees, qualified after, complete process.
The hardness of the mold obtained by detection is HRC59, and each surface hardness difference is within ± 1, and uses this mold
Using after 10,000 times, it still can normally use for processing, and the life-span is high.
Embodiment 3
A kind of processing method of the special Bending Mould of safe door deckle board of the present embodiment, is processed to lower mould 230,
Its step is：
(1) raw material of blank prepares
It is obtained using rough forging, the component of this rough forging and mass percent are：C 0.4%, Si 0.3%, Mn
0.65%th, S≤0.023%, P≤0.021%, Cr 1.4%, Mo 0.42%, ZrO20.1%, balance of Fe；
(2) annealing of rough forging
Rough forging through obtaining in step (1) is annealed to it through annealing furnace, its annealing temperature is 830 DEG C,
Annealing time is 4.2h, is cooled to 250 DEG C in the lehr, is air cooled to room temperature after insulation 0.8h；
(3) preliminary working of rough forging
Rough forging in step (2) is processed on lathe the primary shape of mould, each face retains the surplus of 1.5mm；
(4) heat treatment of mould
The mould that will obtain through step (3) machining, is incubated 2h after being first to heat to 480 DEG C, is then heated to 670 DEG C of guarantors
Warm 1.8h, is heated to 900 DEG C, quenches, oil quenching, again through subzero treatment, the temperature of subzero treatment after cooling after insulation 40min
For -213 DEG C, keep 1.3h, return to room temperature in atmosphere, be once tempered, temperature is 150 DEG C, puts after being cooled to room temperature
Set to 0 .7h and carry out double tempering, temperature is 184 DEG C；
In this step, oil quenching is carried out using quenching oil, the constituent of quenching oil and each constituent mass number are：Base oil
(VHVI) 27 parts, urge cold multiple 0.5 part of agent, 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, the multiple agent that blacks is acrylate, stain
(BlackAFR, the oil stain that BASF AG produces) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener is petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant is rosin acid polyoxyethylene
Ester.
(5) deep processing of mould
Remove the oxide layer that step (4) processes rear mold surface, and be assembled on grinding machine, carry out grinding, respectively
Face retains the surplus of 0.8mm, after placing 1.5 days, carries out grinding again to required size；
(6) detection of mould, detected size and the number of degrees, qualified after, complete process.
The hardness of the lower mould obtained by detection is HRC60, and each surface hardness difference is within ± 1, and uses this lower mould
Using after 10,000 times, it still can normally use for processing, and the life-span is high.
Embodiment 4
A kind of processing method of the special Bending Mould of safe door deckle board of the present embodiment, is processed to mold 130,
Its step is：
(1) raw material of blank prepares
It is obtained using rough forging, the component of this rough forging and mass percent are：C 0.45%, Si 0.35%, Mn
0.71%th, S≤0.023%, P≤0.021%, Cr 1.48%, Mo 0.48%, ZrO20.11%, balance of Fe；
(2) annealing of rough forging
Rough forging through obtaining in step (1) is annealed to it through annealing furnace, its annealing temperature is 835 DEG C,
Annealing time is 4.5h, is cooled to 300 DEG C in the lehr, is air cooled to room temperature after insulation 1.2h；
(3) preliminary working of rough forging
Rough forging in step (2) is processed on lathe the primary shape of mould, each face retains the surplus of 1.5mm；
(4) heat treatment of mould
The mould that will obtain through step (3) machining, is incubated 2.5h after being first to heat to 530 DEG C, is then heated to 700 DEG C
Insulation 2h, is heated to 910 DEG C, quenches, oil quenching, again through subzero treatment, the temperature of subzero treatment after cooling after insulation 45min
For -220 DEG C, keep 1.5h, return to room temperature in atmosphere, be once tempered, temperature is 160 DEG C, puts after being cooled to room temperature
Put 1h, then carry out double tempering, temperature is 195 DEG C；
In this step, oil quenching is carried out using quenching oil, the constituent of quenching oil and each constituent mass number are：Base oil
(VHVI) 28 parts, urge cold multiple 0.7 part of agent, 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, the multiple agent that blacks is acrylate, stain
(BlackAFR, the oil stain that BASF AG produces) and wetting agent (oil-soluble azone) in mass ratio 2:3:1 mixing
Thing, brightener is petroleum sulfonate and binary acid in mass ratio 1:2 mixture, surfactant is rosin acid polyoxyethylene
Ester.
(5) deep processing of mould
Remove the oxide layer that step (4) processes rear mold surface, and be assembled on grinding machine, carry out grinding, respectively
Face retains the surplus of 1mm, after placing at least 1 day, carries out grinding again to required size；
(6) detection of mould, detected size and the number of degrees, qualified after, complete process.
The hardness of the mold obtained by detection is HRC58, and each surface hardness difference is within ± 1.5, and uses mould on this
Using after 10,000 times, it still can normally use for tool processing, and the life-span 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 without departing from design philosophy of the present invention, the technology to the present invention for this area engineers and technicians
Various modifications and improvement that scheme is made, all should fall into protection scope of the present invention.
Claims (10)
1. the special Bending Mould of a kind of safe door deckle board, including upper die component (1) and lower mold assemblies (2)；Described upper module
Part (1) includes mold (130), lower mold assemblies (2) include lower mould (230) it is characterised in that：
The lower surface of described mold (130) is stamping surface, by the first inclined-plane (131), the second inclined-plane from side to opposite side
(132), the 3rd inclined-plane (133) and the 4th inclined-plane (134) are sequentially connected composition, the first inclined-plane (131) and mold (130) side
Between angle be 240 °, the angle between the first inclined-plane (131) and the second inclined-plane (132) is 266 °, the second inclined-plane (132) with
Angle between 3rd inclined-plane (133) is 91 °, and the 4th inclined-plane (134) is parallel with the second inclined-plane (132), the first inclined-plane (131) with
The position of intersecting point on the second inclined-plane (132) is higher than the position of intersecting point on the 3rd inclined-plane (133) and the 4th inclined-plane (134)；
The upper surface of described lower mould (230) is provided with the punching press groove face matching with the stamping surface of mold (130), this 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) and the 4th groove face
(234) it is sequentially connected composition, the angle between the first groove face (231) and lower mould (230) upper surface is 150 °, the first groove face
(231) angle and the second groove face (232) between 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).
2. a kind of special Bending Mould of safe door deckle board according to claim 1 it is characterised in that：Described upper module
Part (1) also includes upper bolster (110) and upper mould fixed block (140), and upper bolster (110) is provided with mould limited block (120)；Described
Mold (130) there are two, be symmetricly set on the upper bolster (110) of mould limited block (120) both sides；Described upper mould
Fixed block (140) is arranged on the upper bolster (110) outside mold (130), and compresses the lateral surface of mold (130)；
Described lower mold assemblies (2) also include die shoe (210) and lower mould fixed block (240), and die shoe (210) is provided with lower mould
Limited block (220)；Described lower mould (230) has two, is symmetricly set on the die shoe of lower mould limited block (220) both sides
(210) on；Described lower mould fixed block (240) is arranged on the die shoe (210) outside lower mould (230), and compresses lower mould
The lateral surface of tool (230).
3. a kind of special Bending Mould of safe door deckle board according to claim 2 it is characterised in that：Described upper bolster
(110) centre offers upper limit position groove, and upper mould limited block (120) is located in upper limit position groove；In described die shoe (210)
Between offer lower limit groove, lower mould limited block (220) be located at lower limit groove in.
4. the special Bending Mould of a kind of safe door deckle board according to Claims 2 or 3 it is characterised in that：Under described
Mould (230) is provided with least two material blocking blocks (250) on the one side of lower mould limited block (220) along its length, gear
On material block (250), backgauge screw (260) is installed.
5. the using method of the special Bending Mould of a kind of safe door deckle board, its operating procedure is：
1. upper die component (1) and lower mold assemblies (2) are assembled respectively, and it is reliable to check to ensure that each parts connect；
2. lower mold assemblies (2) are placed on the workbench of hydraulic press, and bolt is used by lower mould by the T-slot on workbench
Assembly (2) is fixing；
3. lifting upper die component (1) is arrived on lower mold assemblies (2), adjusts upper die component (1) position, makes the punching press of mold (130)
Face is coordinated closely with the punching press groove face of lower mould (230)；
4., after hydraulic machine slide block down compression upper die component (1), upper die component (1) is fixed to by slider of hydraulic press by bolt
On, slide block drives upper die component (1) to move up and down 1-3 time it is ensured that mold (130) is accurate with lower mould (230) cooperation position；
5. by thickness to be processed be 1.8-2mm, using Cr25Mo3One end of the sheet material of Ti preparation is placed on the upper of lower mould (230)
The other end of sheet material on end face, after adjusting bending position, is compressed by material pressing device；
6. mold (130) moves down under the driving force effect of hydraulic press, the 3rd inclined-plane of mold (130) stamping surface
(133) come into contact with sheet material and extrude with the 4th inclined-plane (134) intersection, when mold (130) continues traveling downwardly to the first inclined-plane
(131) with the intersection on the second inclined-plane (132) with web contact when, material pressing device unclamps sheet material, under mold (130) continues
OK, until completing bending, keep 15～20s；
7. hydraulic press drives mold (130) fast fallback, takes off sheet material；
8. 5., 6. and 7. repeat the above steps, carry out bending operation to the sheet material other end, and safe door deckle board machines.
6. a kind of special Bending Mould of safe door deckle board according to claim 5 using method it is characterised in that：Institute
The step stated 6. in, from the 3rd inclined-plane (133) and the 4th inclined-plane (134) intersection and web contact to the first inclined-plane (131) with
In the intersection on the second inclined-plane (132) and web contact time period, mold (130) at the uniform velocity work is entered, and speed is V1=10mm/s,
Go downwards to extreme position from the intersection of the first inclined-plane (131) and the second inclined-plane (132) with web contact to mold (130)
Time is designated as t1, in time period, the work speed of mold (130) is V2, meetT value model
Enclose for [0, t1].
7. the processing method of the special Bending Mould of a kind of safe door deckle board, for processing mold (130) or lower mould
(230), its step is：
(1) raw material of blank prepares
It is obtained using rough forging, the component of this rough forging and mass percent are：C 0.38～0.45%, Si 0.25～
0.35%th, 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%, balance of Fe；
(2) annealing of rough forging
Rough forging through obtaining in step (1) is annealed to it through annealing furnace, its annealing temperature is 825～835 DEG C,
Annealing time is 4～4.5h, is cooled to 200～300 DEG C in the lehr, is air cooled to room temperature after insulation 0.5～1.2h；
(3) preliminary working of rough forging
Rough forging in step (2) is processed on lathe the primary shape of mould, each face retains the surplus of 1.5mm；
(4) heat treatment of mould
The mould that will obtain through step (3) machining, is incubated 1.5-2.5h after being first to heat to 440-530 DEG C, is then heated to
650-700 DEG C of insulation 1.5-2h, is heated to 890-910 DEG C, quenches, oil quenching, again through too deep after cooling after insulation 30-45min
Cold treatment, the temperature of subzero treatment is -206 to -220 DEG C, keeps 1.2-1.5h, returns to room temperature in atmosphere, be once tempered,
Temperature is 140-160 DEG C, places 0.5-1h, then carry out double tempering after being cooled to room temperature, and temperature is 175-195
℃；
(5) deep processing of mould
Remove the oxide layer that step (4) processes rear mold surface, and be assembled on grinding machine, carry out grinding, each face is protected
Stay the surplus of 0.7-1mm, after placing at least 1 day, carry out grinding again to required size；
(6) detection of mould, detected size and the number of degrees, qualified after, complete process.
8. a kind of special Bending Mould of safe door deckle board according to claim 7 processing method it is characterised in that：Institute
In the step (1) stated, the component of rough forging and mass percent are：C 0.4%, Si 0.3%, Mn0.65%, S≤
0.023%th, P≤0.021%, Cr 1.4%, Mo 0.42%, ZrO20.1%, balance of Fe.
9. a kind of special Bending Mould of safe door deckle board according to claim 7 processing method it is characterised in that：Institute
In the step (2) stated, the annealing temperature of rough forging is 830 DEG C, and annealing time is 4.2h, is cooled to 250 DEG C in the lehr, protects
Carry out air cooling after warm 0.8h；In described step (4) heat treatment of mould be first to heat to 480 DEG C after be incubated 2h, then again plus
Heat, to 670 DEG C of insulation 1.8h, is heated to 900 DEG C, quenches after insulation 40min, and oil quenching is again through subzero treatment after cooling, deep
The temperature of cold treatment is -213 DEG C, keeps 1.3h, returns to room temperature in atmosphere, be once tempered, and temperature is 150 DEG C, cold
But place 0.7h to after room temperature and carry out double tempering, temperature is 184 DEG C.
10. the processing method of the special Bending Mould of a kind of safe door deckle board according to claim 7 or 8 or 9, its feature
It is：In described step (4), oil quenching is carried out using quenching oil, the constituent of quenching oil and each constituent mass number are：Base
Plinth oil 26-28 part, urges cold multiple agent 0.3-0.7 part, and black multiple agent 0.1-0.2 part, brightener 0.3-0.6 part, surfactant 3-
3.5 part；Wherein, cold multiple agent is urged to be dicyclopentadiene and EPDM in mass ratio 3:2 mixture, the multiple agent that blacks is acrylic acid
Ester, stain and wetting agent in mass ratio 2:3:1 mixture, brightener is petroleum sulfonate and binary acid in mass ratio 1:2
Mixture, surfactant be polyoxylethylene abietate.
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| 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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| 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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| 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 |
| CN109926500A (en) * | 2019-01-07 | 2019-06-25 | 安徽力源数控刃模具制造有限公司 | A kind of alloy aluminium sheet pressure arc mold materials and its processing technology |
| 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 |
| CN110548783A (en) * | 2019-09-14 | 2019-12-10 | 杜宗英 | automatic production device for overturning slide-pulling plate of medical gauze textile machine |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106424371B (en) | 2018-04-13 |
| 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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