CN106513512B - A kind of one-time-shaped mould for being exclusively used in safety cabinet side plate - Google Patents
A kind of one-time-shaped mould for being exclusively used in safety cabinet side plate Download PDFInfo
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- CN106513512B CN106513512B CN201611081133.1A CN201611081133A CN106513512B CN 106513512 B CN106513512 B CN 106513512B CN 201611081133 A CN201611081133 A CN 201611081133A CN 106513512 B CN106513512 B CN 106513512B
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- lower mould
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- safety cabinet
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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
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
-
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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 one-time-shaped mould for being exclusively used in safety cabinet side plate, belong to mold design field.The mould includes the upper die component with mold and the lower mold assemblies with lower mould；Mold is provided with two, is symmetricly set in upper die component, and the lower end of mold is punching press end；Lower mould is provided with the stamped groove being engaged with the punching press end of mold.Inventive die energy time processing is high into safety cabinet side plate, precision, it is not necessary to secondary artificial treatment, workpiece surface is not damaged, easy to operate, cost is low.The mold use method can quickly and efficiently process safety cabinet side plate, bending efficiency high, quality of finished product good.The processing method of the mould, for processing upper/lower die, first forge, be reprocessed into the shape of all parts, then refine, finally assemble, employ special Technology for Heating Processing, so that die hardness, toughness and wear-resisting sexual satisfaction technological requirement, processing uses more than more than ten thousand times still normal, life-span height.
Description
Technical field
The invention belongs to mold design field, relate in particular to it is a kind of can be by the mould of bending and molding of safety cabinet side plate
Tool, more specifically to a kind of safety cabinet side plate one-time-shaped mould 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 up of various parts, different
The part that forms of mould it is different.It mainly realizes the processing of article profile by the change of institute's moulding material physical state.
Turning into blank 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 ANGLEs according to shaping workpiece shape or the difference of size
Lower mould.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 to can be only achieved required shape, such as in safety cabinet industry, it is necessary to shape shown in manuscript 1
Doorframe border bending part, the molding part both ends are symmetrical, formed respectively by 4 bendings of identical at the both ends of flat sheet,
From plate end, bending section from inside to outside is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 4th bending section
D, the first bending section A and the angle of plate face are 90 °, and the angle between the second bending section B and the first bending section A is 90 °, the 3rd folding
Angle between curved segment C and the second bending section B is that the angle between 270 °, and the 4th bending section D and the 3rd bending section C is
90°.Traditional approach is to obtain each bending section successively by multiple bending, bothersome laborious so as to process the bending part, repeatedly
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
It 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, disclose 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 mould is Z fonts,
The stamping surface of the lower mould matches with upper mould.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 reach the purpose for reducing manufacturing cost.But the program can not be shown in manuscript 1 shape, though in addition, it
Twice bending can be so processed simultaneously, but workpiece is positioned on lower mould and is not easy, bending position is forbidden, it is often more important that, due to plate
The presence of material elastic force itself, bending angle is inconsistent with required product, it is necessary to correct after bending, this design for upper and lower mould
Propose very high requirement.
And for example, China Patent No.：201110166763.X, publication date on November 21st, 2011, disclose 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 mould with
Mould is formed, and upper mould is mainly made up of upper bolster, upper fixed mould, upper adjustable pressing mold, upper compound gasket and upper fixing bolt again, under
Mould again mainly by die shoe, lower fixed mould, under adjustable pressing mold and lower fixing bolt form, open up and roll in the bottom of upper bolster
The pressure line of bender in oblique groove on the right angle of δ angles, correspondingly installed in oblique groove on this fixed mould, on pressure-adjustable
Mould and upper compound gasket, opened up on the top of die shoe with vertical center line also into the oblique groove in right angle of δ angles, under this
The lower fixed mould of corresponding installation in oblique groove, 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 matched moulds, 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.Most important reason be mould without
Method is processed into the mould corresponding with Fig. 1 shapes, so to change original mold design theory, proposes the new mode of thinking,
Emphasis is with requirement more and more higher of the people to product, the precision of processed product also to require more and more higher.
The content of the invention
, to solve the problems, such as
The bending part needed in production safety cabinet side plate, it is respectively by 4 foldings of identical at the both ends of flat sheet
Curved to form, from plate end, bending section from inside to outside is respectively the first bending section A, the second bending section B, the 3rd bending section C, the 4th
Bending section D, the first bending section A and the angle of plate face are 90 °, the angle between the second bending section B and the first bending section A is 90 °,
Angle between 3rd bending section C and the second bending section B is the folder between 270 °, and the 4th bending section D and the 3rd bending section C
Angle is 90 °.The workpiece is processed in the prior art and the problem of processing difficulties, inefficient, low machining accuracy be present, and the present invention is a kind of
Safety cabinet side plate one-time-shaped mould, a bending can complete the processing of above-mentioned workpiece, and efficiency high, machining accuracy is high, right
Workpiece not damaged.In addition, present invention also offers the mold use method, above-mentioned guarantor can efficiently be produced by this method
Dangerous cabinet side plate.Further, since the mould in order to complete process safety cabinet side plate function, it is ensured that service life is lasting, it is also necessary to
Special processing technology is carried out to upper/lower die, it is ensured that upper/lower die has higher hardness, and the present invention also provides the upper and lower mould
The processing method of tool.
, technical scheme
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of safety cabinet side plate one-time-shaped mould, including upper die component and lower mold assemblies；Described upper die component bag
Mold is included, lower mold assemblies include lower mould, it is characterised in that：
The lower end of described mold is punching press end, and it is from side to opposite side by the first vertical plane, first level face,
Two vertical planes, the second horizontal plane and inclined plane are sequentially connected composition, and the angle between the first vertical plane and first level face is
Angle between 270 °, first level face and the second vertical plane is the folder between 90 °, and the second vertical plane and the second horizontal plane
Angle is 270 °, and the angle between the second horizontal plane and inclined plane is obtuse angle；
Described lower mould is provided with the stamped groove being engaged with the punching press end of mold, and it is from side to opposite side by first
Vertical slot face, the first transverse groove；Vertical connection forms successively for second vertical slot face, the second transverse groove and the 3rd vertical slot face.
Further, described upper die component also includes upper bolster, and mould fixed block is provided with upper bolster；Described is upper
Mould has two, the left and right ends for being arranged on mould fixed block respectively symmetrically；
Described lower mold assemblies also include die shoe, and the left and right ends of die shoe are respectively provided with a lower mould fixed block；It is described
Lower mould have two, be symmetrically mounted on two lower mould fixed blocks.
Further, described mold is arranged in the upper mould fixing groove of mould fixed block, is consolidated by bolt and upper mould
Determine block connection；Described die shoe is provided with locating slot, and lower mould fixed block is arranged in locating slot, and is bolted；Institute
Lower mould fixing groove is offered on the lower mould fixed block stated, lower mould is arranged in lower mould fixing groove, and is bolted.
Further, the punching press trench bottom of described lower mould offers the through hole through lower mould bottom surface, and lower mould is fixed
The lower mould fixing groove bottom of block offers the standing groove corresponding with the lead to the hole site of lower mould, and ejection block is set in standing groove,
Ejection block upper end can be stretched into stamped groove by the through hole of lower mould, and during bending operation, ejection block is in the presence of drive device
Sheet material lower surface can be withstood.
Further, along its length at least provided with two backgauges on the relative one side of described two lower mould fixed blocks
Block, backgauge screw is installed on material blocking block.
A kind of application method of safety cabinet side plate one-time-shaped mould, 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 punching press end of mold and lower mould
Stamped groove 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 sheet material prepared by Ti is placed on lower mould
On upper surface, and adjust bending position；
6. mold moves down under the driving force effect of hydraulic press, second horizontal plane at mold punching press end starts
Contact sheet material simultaneously extrudes, and mold continues traveling downwardly, the first vertical plane and the intersection and web contact in first level face, mold
Continue traveling downwardly, until completing bending, keep 15 ~ 20s；
7. hydraulic press drives mold fast fallback, sheet material is removed；
8. repeating the above steps 5., 6. and 7., bending operation is carried out to the sheet material other end, safety cabinet side plate machines.
Further, described step 6. in, mold go downwards to the second horizontal plane start contact sheet material when, driving dress
Put driving ejection block to withstand plate from the lower surface of sheet material, so that sheet material clamping is between mold and ejection block.
A kind of processing method of safety cabinet side plate one-time-shaped mould, 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 it is annealed by annealing furnace, its annealing temperature is 825~
835 DEG C, annealing time is 4~4.5 h, is cooled to 200~300 DEG C in the lehr, and normal temperature is air-cooled to after being incubated 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 1.5mm surplus；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 1.5-2.5 h are incubated after being first to heat to 440-530 DEG C, is then added again
Heat is heated to 890-910 DEG C, 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 normal temperature in atmosphere,
Once it is tempered, temperature is 140-160 DEG C, places 0.5-1 h after being cooled to normal 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 0.7-1 mm surplus, after placing at least 1 day, carries out grinding size needed for again；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
Further, described 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, described step（2）The annealing temperature of middle rough forging is 810 DEG C, and annealing time is 3.5 h,
It is cooled to 250 DEG C in annealing furnace, air cooling is carried out after being incubated 0.8 h；Described step（4）The heat treatment of middle mould is to be first to heat to
2.5 h are incubated after 565 DEG C, 730 DEG C of 1.8 h of insulation is then heated to, is heated to 915 DEG C, is quenched after being incubated 40 min,
Oil quenching, pass through subzero treatment after cooling again, the temperature of subzero treatment is -220 DEG C, keeps 1.3 h, returns in atmosphere often
Temperature, once it is tempered, temperature is 170 DEG C, and 0.7 h progress double temperings, temperature 154 are placed after being cooled to normal temperature
℃；The hardening media of oil quenching is No. 2 conventional quenching oils.
, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
（1）The mould of the present invention by the punching press end shape of special mold and the stamped groove form fit of lower mould,
Energy time processing is high into safety cabinet side plate workpiece to be processed, precision, it is not necessary to secondary artificial treatment, does not have to workpiece surface
Damage, easy to operate, cost is low；What is more important, multiple bending is carried out using the mould of routine, accumulated tolerance is big, processing
Workpiece error is big, it is necessary to correct afterwards, and the mould one-shot forming of the present invention, no cumulative errors, precision are high；
（2）The mould of the present invention, is withstood from sheet material lower surface using ejection block in bending process, plate is firmly pressed
Tightly between mold and ejection block, plate in bending process is avoided to offset, so as to improve bending precision；
（3）For convenience of positioning during sheet metal bending, mould of the invention is provided with along its length on lower mould fixed block
Material blocking block, backgauge screw is installed on material blocking block, by adjusting backgauge screw, can adjust sheet metal bending position, easy to adjust, folding
Curved positioning precision is high；
（4）The application method of the present invention, safety cabinet side plate, bending effect can be quickly and efficiently processed using the mould
Rate is high, quality of finished product good.
（5）The processing method of safety cabinet side plate one-time-shaped mould of the present invention, the mold processed or lower mould have
Higher hardness, toughness and wearability, and hardness is evenly distributed, processing uses more than more than ten thousand times still normal, life-span height.
Brief description of the drawings
Fig. 1 is the safety cabinet side plate molding part of required processing；
Fig. 2 is a kind of upper die component structural representation of safety cabinet side plate one-time-shaped mould of the present invention；
Fig. 3 is a kind of lower mold assemblies structural representation of safety cabinet side plate one-time-shaped mould of the present invention；
Fig. 4 is view when a kind of safety cabinet side plate one-time-shaped mould of the present invention starts bending；
Fig. 5 is view when a kind of safety cabinet side plate one-time-shaped mould of the present invention completes bending.
Label in accompanying drawing is expressed as：
1st, upper bolster；2nd, upper mould fixed block；3rd, mold；301st, the first vertical plane；302nd, first level face；303rd, second
Vertical plane；304th, the second horizontal plane；305th, inclined plane；
4th, die shoe；5th, lower mould fixed block；6th, lower mould；601st, the first vertical slot face；602nd, the first transverse groove；603rd, second
Vertical slot face；604th, the second transverse groove；605th, the 3rd vertical slot face；
7th, ejection block；8th, material blocking block；9th, 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 safety cabinet side plate one-time-shaped mould of the present embodiment, including upper die component is with
Membrane module；Wherein, upper die component includes upper bolster 1 and mold 3, is provided with mould fixed block 2 on upper bolster 1, mold 3 has
There are two, the left and right ends for being arranged on mould fixed block 2 of two molds 3 respectively symmetrically；And mold 3 is arranged on mould and consolidated
In the upper mould fixing groove for determining block 2, and it is detachably connected by bolt and upper mould fixed block 2, the design of upper mould fixing groove causes
Easy for installation, the registration of mould 3.The lower end of mold 3 is punching press end, and it is from side to opposite side by the first vertical plane
301st, first level face 302, the second vertical plane 303, the second horizontal plane 304 and inclined plane 305 are sequentially connected composition, and first is vertical
Angle between face 301 and first level face 302 is 270 °, the angle between the vertical plane 303 of first level face 302 and second is
Angle between 90 °, and the second vertical plane 303 and the second horizontal plane 304 is 270 °, the second horizontal plane 304 and inclined plane 305
Between angle be obtuse angle, in the present embodiment, the angle is 274 °, and this angle design is it is considered that sheet material on the outside of mould
Need to be upturned in bending process, and the 3rd vertical slot face 605 of the stamped groove of lower mould 6 is longer, if it is arranged to 270 °,
Rubbed between sheet material and the vertical slot face 605 of inclined plane 305 and the 3rd, hinder mold 3 descending, the angle of the present embodiment is set
In view of plate rocking in itself, avoid the occurrence of.
In the present embodiment, make it that bending is more smooth, in mold 3, the vertical plane of first level face 302 and second
303 intersection sets rectangular recess, the escape when rectangular recess is just as turnery processing, in bending place in bending process
Play a part of making a concession space, because bending part sheet material stretches, if the not rectangular channel, bending will be caused difficult, folding
Curved friction noise is big, and sheet material produces abrasion, and larger, such a design is deformed after bending, simple ingenious, can effectively avoid above-mentioned
Problem.
With reference to shown in Fig. 3, lower mold assemblies include die shoe 4 and lower mould 6, and the left and right ends of die shoe 4 are respectively provided with one
Locating slot, each locating slot one lower mould fixed block 5 of interior installation, lower mould fixed block 5 are bolted on die shoe 4；Under
Mould 6 has two, is symmetrically disposed in the lower mould fixing groove of two lower mould fixed blocks 5, and fixed by bolt and lower mould
Block 5 is fixedly connected, and the design of lower mould fixing groove also causes easy for installation, the registration of lower mould 6.Lower mould 6 be provided with it is upper
The stamped groove that the punching press end of mould 3 is engaged, it is from side to opposite side by the first vertical slot face 601, the first transverse groove 602；The
Vertical connection forms successively for two vertical slot faces 603, the second transverse groove 604 and the 3rd vertical slot face 605.
What deserves to be explained is in general mould comprises only a pair of mutual cooperation upper/lower dies, one workpiece of time processing, and
It is that bending is carried out at both ends in view of safety cabinet side plate, while the multiple bending shape in end is irregular, asymmetric, the present embodiment
Considering the life-span of processing efficiency and mould, innovative two molds 3 of use coordinate with two lower moulds 6 respectively, this
Kind of structure design, once can two workpiece of bending, efficiency improves 2 times, it is often more important that, two molds, 3, two lower moulds 6
Using symmetric design, in bending process, the component of mould in the horizontal direction is cancelled completely, so that only downward pressure,
Be advantageous to improve bending precision, also improve die life.
It is also asymmetric further, since the stamped groove of lower mould 6 is in irregular shape, it is easy to occur the position of sheet material during bending
Skew is put, causes final product quality unqualified.Usual mode is to compress sheet material using material pressing device in one end of the non-bending of sheet material, but
Be, due to safety cabinet side plate end shape when using the present embodiment mould bending, it is necessary to both ends can all tilt, so as to adopt
With the press material structure of usual form.For above difficult point, the punching press trench bottom of lower mould 6 is offered through lower mould in the present embodiment
Has a through hole of 6 bottom surfaces, the lower mould fixing groove bottom of lower mould fixed block 5 offers and the lead to the hole site of lower mould 6 is corresponding puts
Groove is put, ejection block 7 is set in standing groove, the upper end of ejection block 7 can be stretched into stamped groove by the through hole of lower mould 6, bending operation
When, ejection block 7 can withstand sheet material lower surface in the presence of drive device, so as to which sheet material to be firmly pressed on to the He of mold 3
Between ejection block 7, avoid plate in bending process from offseting, improve bending precision.Drive device can be oil cylinder, cylinder etc., only
Above-mentioned function can be realized.In the present embodiment, drive device uses oil cylinder, and piston rod and the ejection block 7 of oil cylinder connect
Connect, driving ejection block 7 moves up and down.
In addition, positioned for convenience of sheet metal bending, along length on the relative one side of two lower mould fixed blocks 5 in the present embodiment
Direction is provided with backgauge screw 9 at least provided with two material blocking blocks 8 on material blocking block 8.According to required bending position, backgauge spiral shell is adjusted
Nail 9, it is required for finding bending position accurately without placing sheet material every time, greatly improves bending efficiency, also improve bending precision；And
Multiple regulation backgauge screws 9 are adjusted, may be such that sheet metal bending line and sheet end surface are angled, extend bending model
Enclose.
Punching press end shape and lower mould of the safety cabinet side plate one-time-shaped mould of the present embodiment by special mold
The stamped groove form fit of tool, energy time processing are high into safety cabinet side plate workpiece to be processed, precision, it is not necessary to secondary artificial
Processing, is not damaged to workpiece surface, and easy to operate, cost is low, and precision is high.
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 sheet materials as an example, illustrate how it carries out bending operation.
A kind of application method of safety cabinet side plate one-time-shaped mould, 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 punching press end of mold 3 and lower mould
The stamped groove of tool 6 coordinates 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 3 and the lower cooperation position of mould 6 are accurate；
5. first, the position of bending as needed, backgauge screw 9 is adjusted in place；Then, by the one of sheet material to be processed
End is placed on the upper surface of lower mould 6, and sheet material is tightly abutted against on backgauge screw 9；
6. first, mold 3 is moved down into second horizontal plane 304 at punching press end under the driving force effect of hydraulic press
Stop during rigid connection touch panel material, now, drive ejection block 7 to withstand plate from the lower surface of sheet material by drive device, so that
Sheet material clamping is between mold 3 and ejection block 7.Mold 3 acts, and starts extrusion plate；Then, the first of punching press end is vertical
The intersection and web contact in face 301 and first level face 302, mold 3 continue traveling downwardly, until arriving lower limit position, complete
Bending；Finally keep 15 ~ 20s.In above process, ejection block 7 withstands sheet material all the time.
7. bender drives the fast fallback of mold 3, drive device driving ejection block 7 is moved up sheet material from lower mould
Ejected in the stamped groove of tool；
8. repeating the above steps 5., 6. and 7., bending operation is carried out to the sheet material other end, completes the processing of safety cabinet side plate.
Safety cabinet side plate obtained by after processing is detected, the angle of the first bending section A and plate face is 90.1 °, the
Angle between two bending section B and the first bending section A is 90 °, the angle between the 3rd bending section C and the second bending section B is
Angle between 269.8 °, and the 4th bending section D and the 3rd bending section C is 90.2 °, and each angle meets required precision, product
It is qualified, without second-order correction.
Embodiment 2
Although the Bending Processing of safety cabinet side plate can be completed well using the mould in embodiment 1 and method, deposit
Be exactly that access times are more in a problem, the working portion of mold 3 and lower mould 6 because stress is larger, is easily damaged,
Cause to need more mold exchange in use for some time, have in practice been verified that the upper mould using common material and Technology for Heating Processing processing
Tool, is easy for the second vertical plane 303 and the intersection of the second horizontal plane 304 for mold 3 occur when using about 2300 times
And second horizontal plane 304 with the intersection of inclined plane 305 there is phenomena such as bursting apart, wearing, equally, the first transverse groove 602 and second
Also there is phenomena such as bursting apart, wearing in the intersection of vertical slot face 603.Although the mould of embodiment 1 considers the above in structure design
Factor, and crackle tendency can be prevented to a certain extent, but rational material composition and Technology for Heating Processing are still relied on,
So according to the design feature of above-mentioned mould, the present embodiment makes every effort to find a kind of new material and Technology for Heating Processing.The mould
The processing method of middle mold 3 or lower mould 6, is first to forge, is then reprocessed into the shape of all parts, then is refined, finally
Assembling.Wherein because mold 3 and lower mould 6 need higher hardness, toughness and wearability, it is necessary to special handling process,
Below by taking the processing of mold 3 as an example, it is specifically described：
A kind of processing method of the special Bending Mould of safe door deckle board, is processed, its step is to mold 3：
（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 it is annealed by annealing furnace, its annealing temperature is 800 DEG C,
Annealing time is 3 h, is cooled to 200 DEG C in the lehr, and normal temperature is air-cooled to after being incubated 0.6 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 1.5mm surplus；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 2 h are incubated after being first to heat to 550 DEG C, are then heated to 710 DEG C
1.5 h are incubated, are heated to 900 DEG C, are quenched after being incubated 30 min, carry out oil quenching using No. 2 conventional quenching oils, after cooling again
By subzero treatment, the temperature of subzero treatment is -210 DEG C, keeps 1h, returns to normal temperature in atmosphere, be once tempered, tempering temperature
Spend for 165 DEG C, 0.5 h is placed after being cooled to normal temperature, then carry out double tempering, temperature is 140 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 0.7 mm surplus, after placing 1 day, carries out grinding size needed for again；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness of mold obtained by detection is HRC59, and each surface hardness difference uses the mold within ± 1
After processing uses 10,000 times its still can normal use, the life-span is high.
Embodiment 3
A kind of processing method of special Bending Mould of safe door deckle board of the present embodiment, is processed to lower mould 6, 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 it is annealed by annealing furnace, its annealing temperature is 810 DEG C,
Annealing time is 3.5 h, is cooled to 250 DEG C in the lehr, and normal temperature is air-cooled to after being incubated 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 1.5mm surplus；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 2.5 h are incubated after being first to heat to 565 DEG C, are then heated to 730
DEG C 1.8 h of insulation, are heated to 915 DEG C, are quenched after being incubated 40 min, oil quenchings are carried out using No. 2 conventional quenching oils, after cooling
Pass through subzero treatment again, the temperature of subzero treatment is -220 DEG C, keeps 1.3 h, returns to normal temperature in atmosphere, be once tempered,
Temperature is 170 DEG C, places 0.7 h progress double temperings after being cooled to normal temperature, temperature is 150 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 0.8 mm surplus, after placing 1.5 days, carries out grinding size needed for again；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness of lower mould obtained by detection is HRC61, and each surface hardness difference uses the lower mould within ± 1
After processing uses 10,000 times its still can normal use, the life-span is high.
Embodiment 4
A kind of processing method of special Bending Mould of safe door deckle board of the present embodiment, is processed to mold 3, 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 it is annealed by annealing furnace, its annealing temperature is 820 DEG C,
Annealing time is 4 h, is cooled to 300 DEG C in the lehr, and normal temperature is air-cooled to after being incubated 1 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 1.5mm surplus；
（4）The heat treatment of mould
Will be through step（3）Obtained mould is machined, 3 h are incubated after being first to heat to 580 DEG C, are then heated to 760 DEG C
2 h are incubated, are heated to 930 DEG C, are quenched after being incubated 45 min, oil quenching is carried out using No. 2 conventional quenching oils, is passed through again after cooling
Subzero treatment is crossed, the temperature of subzero treatment is -225 DEG C, keeps 1.5 h, returns to normal temperature in atmosphere, be once tempered, is tempered
Temperature is 180 DEG C, and 1 h is placed after being cooled to normal temperature, then carries out double tempering, and temperature is 155 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 1 mm surplus, after placing at least 1 day, carries out grinding size needed for again；
（6）The detection of mould, detected size and the number of degrees, after qualified, complete processing.
The hardness of mold obtained by detection is HRC58, and each surface hardness difference uses the mold within ± 1
After processing uses 10,000 times its still can normal use, 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 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, all should fall into protection scope of the present invention.
Claims (5)
1. a kind of one-time-shaped mould for being exclusively used in safety cabinet side plate, including upper die component and lower mold assemblies；Described upper module
Part includes mold（3）, lower mold assemblies include lower mould（6）, it is characterised in that：
Described mold（3）Lower end be punching press end, it is from side to opposite side by the first vertical plane（301）, first level
Face（302）, the second vertical plane（303）, the second horizontal plane（304）And inclined plane（305）It is sequentially connected composition, the first vertical plane
（301）With first level face（302）Between angle be 270 °, first level face（302）With the second vertical plane（303）Between
Angle is 90 °, and the second vertical plane（303）With the second horizontal plane（304）Between angle be 270 °, the second horizontal plane
（304）With inclined plane（305）Between angle be obtuse angle；
Described lower mould（6）It is provided with and mold（3）The stamped groove that is engaged of punching press end, it is from side to opposite side by
One vertical slot face（601）, the first transverse groove（602）；Second vertical slot face（603）, the second transverse groove（604）With the 3rd vertical slot face
（605）Vertical connection forms successively.
A kind of 2. one-time-shaped mould for being exclusively used in safety cabinet side plate according to claim 1, it is characterised in that：Described
Upper die component also includes upper bolster（1）, upper bolster（1）On mould fixed block is installed（2）；Described mold（3）With two
It is individual, respectively symmetrically be arranged on mould fixed block（2）Left and right ends；
Described lower mold assemblies also include die shoe（4）, die shoe（4）Left and right ends be respectively provided with a lower mould fixed block（5）；
Described lower mould（6）With two, two lower mould fixed blocks are symmetrically mounted on（5）On.
A kind of 3. one-time-shaped mould for being exclusively used in safety cabinet side plate according to claim 2, it is characterised in that：Described
Mold（3）It is arranged on mould fixed block（2）Upper mould fixing groove in, pass through bolt and upper mould fixed block（2）Connection；Described
Die shoe（4）It is provided with locating slot, lower mould fixed block（5）It is arranged in locating slot, and is bolted；Described lower mould is consolidated
Determine block（5）On offer lower mould fixing groove, lower mould（6）It is arranged in lower mould fixing groove, and is bolted.
A kind of 4. one-time-shaped mould for being exclusively used in safety cabinet side plate according to claim 3, it is characterised in that：Described
Lower mould（6）Punching press trench bottom offer through lower mould（6）The through hole of bottom surface, lower mould fixed block（5）Lower mould fixing groove
Bottom offers and lower mould（6）The corresponding standing groove of lead to the hole site, ejection block is set in standing groove（7）, ejection block（7）
Upper end passes through lower mould（6）Through hole can stretch into stamped groove, during bending operation, ejection block（7）In the presence of drive device
Sheet material lower surface can be withstood.
5. a kind of one-time-shaped mould for being exclusively used in safety cabinet side plate according to any one in Claims 2 or 3 or 4,
It is characterized in that：Two described lower mould fixed blocks（5）Along its length at least provided with two material blocking blocks on relative one side
（8）, material blocking block（8）On backgauge screw is installed（9）.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081133.1A CN106513512B (en) | 2016-11-30 | 2016-11-30 | A kind of one-time-shaped mould for being exclusively used in safety cabinet side plate |
| CN201711283628.7A CN107999625B (en) | 2016-11-30 | 2016-11-30 | A kind of use and processing method of safety cabinet side plate one-time-shaped mould |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611081133.1A CN106513512B (en) | 2016-11-30 | 2016-11-30 | A kind of one-time-shaped mould for being exclusively used in safety cabinet side plate |
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| CN201711283628.7A Division CN107999625B (en) | 2016-11-30 | 2016-11-30 | A kind of use and processing method of safety cabinet side plate one-time-shaped mould |
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| CN106513512A CN106513512A (en) | 2017-03-22 |
| CN106513512B true CN106513512B (en) | 2018-04-03 |
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| CN201611081133.1A Active CN106513512B (en) | 2016-11-30 | 2016-11-30 | A kind of one-time-shaped mould for being exclusively used in safety cabinet side plate |
| CN201711283628.7A Active CN107999625B (en) | 2016-11-30 | 2016-11-30 | A kind of use and processing method of safety cabinet side plate one-time-shaped mould |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107309339B (en) * | 2017-08-09 | 2023-02-28 | 陕西建工第五建设集团有限公司 | Lightning-arrest belt lap joint B-shaped bending processing die and method |
| CN107838296B (en) * | 2017-12-07 | 2024-04-26 | 安徽力源数控刃模具制造有限公司 | One-step forming die for hinge type interconnection part and use method of one-step forming die |
| CN107999626B (en) * | 2017-12-07 | 2024-04-26 | 安徽力源数控刃模具制造有限公司 | One-step forming die for hinge type part and processing method 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 |
| CN112742914B (en) * | 2019-10-29 | 2023-02-03 | 中国航发商用航空发动机有限责任公司 | Bending device |
| CN111283437A (en) * | 2019-12-31 | 2020-06-16 | 江苏瑞强能源有限公司 | Continuous forming preparation method and system for square tube anti-blocking block |
| CN111496093A (en) * | 2020-05-14 | 2020-08-07 | 许世璋 | Bending die utilizing liftout |
| CN112024713B (en) * | 2020-08-12 | 2022-04-15 | 武汉花都科技集团有限公司 | Steel-plastic furniture manufacturing device and operation method thereof |
| CN113263085B (en) * | 2021-04-19 | 2023-03-24 | 南京我乐家居股份有限公司 | Wardrobe package control method |
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Also Published As
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|---|---|
| CN107999625A (en) | 2018-05-08 |
| CN107999625B (en) | 2019-03-29 |
| CN106513512A (en) | 2017-03-22 |
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Denomination of invention: A one-time forming die for safe side plate Effective date of registration: 20211227 Granted publication date: 20180403 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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